Commit | Line | Data |
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a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
eb1102fc | 3 | * Copyright (c) 1991-2002, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e | 8 | * "I wonder what the Entish is for 'yes' and 'no'," he thought. |
645c22ef DM |
9 | * |
10 | * | |
5e045b90 AMS |
11 | * This file contains the code that creates, manipulates and destroys |
12 | * scalar values (SVs). The other types (AV, HV, GV, etc.) reuse the | |
13 | * structure of an SV, so their creation and destruction is handled | |
14 | * here; higher-level functions are in av.c, hv.c, and so on. Opcode | |
15 | * level functions (eg. substr, split, join) for each of the types are | |
16 | * in the pp*.c files. | |
79072805 LW |
17 | */ |
18 | ||
19 | #include "EXTERN.h" | |
864dbfa3 | 20 | #define PERL_IN_SV_C |
79072805 | 21 | #include "perl.h" |
d2f185dc | 22 | #include "regcomp.h" |
79072805 | 23 | |
51371543 | 24 | #define FCALL *f |
2c5424a7 | 25 | |
765f542d NC |
26 | #ifdef PERL_COPY_ON_WRITE |
27 | #define SV_COW_NEXT_SV(sv) INT2PTR(SV *,SvUVX(sv)) | |
a29f6d03 | 28 | #define SV_COW_NEXT_SV_SET(current,next) SvUVX(current) = PTR2UV(next) |
b5ccf5f2 | 29 | /* This is a pessimistic view. Scalar must be purely a read-write PV to copy- |
765f542d | 30 | on-write. */ |
e419cbc5 NC |
31 | #define CAN_COW_MASK (SVs_OBJECT|SVs_GMG|SVs_SMG|SVs_RMG|SVf_IOK|SVf_NOK| \ |
32 | SVf_POK|SVf_ROK|SVp_IOK|SVp_NOK|SVp_POK|SVf_FAKE| \ | |
33 | SVf_OOK|SVf_BREAK|SVf_READONLY|SVf_AMAGIC) | |
765f542d NC |
34 | #define CAN_COW_FLAGS (SVp_POK|SVf_POK) |
35 | #endif | |
645c22ef DM |
36 | |
37 | /* ============================================================================ | |
38 | ||
39 | =head1 Allocation and deallocation of SVs. | |
40 | ||
5e045b90 AMS |
41 | An SV (or AV, HV, etc.) is allocated in two parts: the head (struct sv, |
42 | av, hv...) contains type and reference count information, as well as a | |
43 | pointer to the body (struct xrv, xpv, xpviv...), which contains fields | |
44 | specific to each type. | |
45 | ||
46 | Normally, this allocation is done using arenas, which are approximately | |
47 | 1K chunks of memory parcelled up into N heads or bodies. The first slot | |
48 | in each arena is reserved, and is used to hold a link to the next arena. | |
49 | In the case of heads, the unused first slot also contains some flags and | |
50 | a note of the number of slots. Snaked through each arena chain is a | |
51 | linked list of free items; when this becomes empty, an extra arena is | |
52 | allocated and divided up into N items which are threaded into the free | |
53 | list. | |
645c22ef DM |
54 | |
55 | The following global variables are associated with arenas: | |
56 | ||
57 | PL_sv_arenaroot pointer to list of SV arenas | |
58 | PL_sv_root pointer to list of free SV structures | |
59 | ||
60 | PL_foo_arenaroot pointer to list of foo arenas, | |
61 | PL_foo_root pointer to list of free foo bodies | |
62 | ... for foo in xiv, xnv, xrv, xpv etc. | |
63 | ||
64 | Note that some of the larger and more rarely used body types (eg xpvio) | |
65 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
66 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
67 | with all items individually malloc()ed. In addition, a few SV heads are | |
68 | not allocated from an arena, but are instead directly created as static | |
69 | or auto variables, eg PL_sv_undef. | |
70 | ||
71 | The SV arena serves the secondary purpose of allowing still-live SVs | |
72 | to be located and destroyed during final cleanup. | |
73 | ||
74 | At the lowest level, the macros new_SV() and del_SV() grab and free | |
75 | an SV head. (If debugging with -DD, del_SV() calls the function S_del_sv() | |
76 | to return the SV to the free list with error checking.) new_SV() calls | |
77 | more_sv() / sv_add_arena() to add an extra arena if the free list is empty. | |
78 | SVs in the free list have their SvTYPE field set to all ones. | |
79 | ||
80 | Similarly, there are macros new_XIV()/del_XIV(), new_XNV()/del_XNV() etc | |
81 | that allocate and return individual body types. Normally these are mapped | |
ff276b08 RG |
82 | to the arena-manipulating functions new_xiv()/del_xiv() etc, but may be |
83 | instead mapped directly to malloc()/free() if PURIFY is defined. The | |
645c22ef DM |
84 | new/del functions remove from, or add to, the appropriate PL_foo_root |
85 | list, and call more_xiv() etc to add a new arena if the list is empty. | |
86 | ||
ff276b08 | 87 | At the time of very final cleanup, sv_free_arenas() is called from |
645c22ef DM |
88 | perl_destruct() to physically free all the arenas allocated since the |
89 | start of the interpreter. Note that this also clears PL_he_arenaroot, | |
90 | which is otherwise dealt with in hv.c. | |
91 | ||
92 | Manipulation of any of the PL_*root pointers is protected by enclosing | |
93 | LOCK_SV_MUTEX; ... UNLOCK_SV_MUTEX calls which should Do the Right Thing | |
94 | if threads are enabled. | |
95 | ||
96 | The function visit() scans the SV arenas list, and calls a specified | |
97 | function for each SV it finds which is still live - ie which has an SvTYPE | |
98 | other than all 1's, and a non-zero SvREFCNT. visit() is used by the | |
99 | following functions (specified as [function that calls visit()] / [function | |
100 | called by visit() for each SV]): | |
101 | ||
102 | sv_report_used() / do_report_used() | |
103 | dump all remaining SVs (debugging aid) | |
104 | ||
105 | sv_clean_objs() / do_clean_objs(),do_clean_named_objs() | |
106 | Attempt to free all objects pointed to by RVs, | |
107 | and, unless DISABLE_DESTRUCTOR_KLUDGE is defined, | |
108 | try to do the same for all objects indirectly | |
109 | referenced by typeglobs too. Called once from | |
110 | perl_destruct(), prior to calling sv_clean_all() | |
111 | below. | |
112 | ||
113 | sv_clean_all() / do_clean_all() | |
114 | SvREFCNT_dec(sv) each remaining SV, possibly | |
115 | triggering an sv_free(). It also sets the | |
116 | SVf_BREAK flag on the SV to indicate that the | |
117 | refcnt has been artificially lowered, and thus | |
118 | stopping sv_free() from giving spurious warnings | |
119 | about SVs which unexpectedly have a refcnt | |
120 | of zero. called repeatedly from perl_destruct() | |
121 | until there are no SVs left. | |
122 | ||
123 | =head2 Summary | |
124 | ||
125 | Private API to rest of sv.c | |
126 | ||
127 | new_SV(), del_SV(), | |
128 | ||
129 | new_XIV(), del_XIV(), | |
130 | new_XNV(), del_XNV(), | |
131 | etc | |
132 | ||
133 | Public API: | |
134 | ||
8cf8f3d1 | 135 | sv_report_used(), sv_clean_objs(), sv_clean_all(), sv_free_arenas() |
645c22ef DM |
136 | |
137 | ||
138 | =cut | |
139 | ||
140 | ============================================================================ */ | |
141 | ||
142 | ||
51371543 | 143 | |
4561caa4 CS |
144 | /* |
145 | * "A time to plant, and a time to uproot what was planted..." | |
146 | */ | |
147 | ||
053fc874 GS |
148 | #define plant_SV(p) \ |
149 | STMT_START { \ | |
150 | SvANY(p) = (void *)PL_sv_root; \ | |
151 | SvFLAGS(p) = SVTYPEMASK; \ | |
152 | PL_sv_root = (p); \ | |
153 | --PL_sv_count; \ | |
154 | } STMT_END | |
a0d0e21e | 155 | |
fba3b22e | 156 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
157 | #define uproot_SV(p) \ |
158 | STMT_START { \ | |
159 | (p) = PL_sv_root; \ | |
160 | PL_sv_root = (SV*)SvANY(p); \ | |
161 | ++PL_sv_count; \ | |
162 | } STMT_END | |
163 | ||
645c22ef DM |
164 | |
165 | /* new_SV(): return a new, empty SV head */ | |
166 | ||
eba0f806 DM |
167 | #ifdef DEBUG_LEAKING_SCALARS |
168 | /* provide a real function for a debugger to play with */ | |
169 | STATIC SV* | |
170 | S_new_SV(pTHX) | |
171 | { | |
172 | SV* sv; | |
173 | ||
174 | LOCK_SV_MUTEX; | |
175 | if (PL_sv_root) | |
176 | uproot_SV(sv); | |
177 | else | |
178 | sv = more_sv(); | |
179 | UNLOCK_SV_MUTEX; | |
180 | SvANY(sv) = 0; | |
181 | SvREFCNT(sv) = 1; | |
182 | SvFLAGS(sv) = 0; | |
183 | return sv; | |
184 | } | |
185 | # define new_SV(p) (p)=S_new_SV(aTHX) | |
186 | ||
187 | #else | |
188 | # define new_SV(p) \ | |
053fc874 GS |
189 | STMT_START { \ |
190 | LOCK_SV_MUTEX; \ | |
191 | if (PL_sv_root) \ | |
192 | uproot_SV(p); \ | |
193 | else \ | |
194 | (p) = more_sv(); \ | |
195 | UNLOCK_SV_MUTEX; \ | |
196 | SvANY(p) = 0; \ | |
197 | SvREFCNT(p) = 1; \ | |
198 | SvFLAGS(p) = 0; \ | |
199 | } STMT_END | |
eba0f806 | 200 | #endif |
463ee0b2 | 201 | |
645c22ef DM |
202 | |
203 | /* del_SV(): return an empty SV head to the free list */ | |
204 | ||
a0d0e21e | 205 | #ifdef DEBUGGING |
4561caa4 | 206 | |
053fc874 GS |
207 | #define del_SV(p) \ |
208 | STMT_START { \ | |
209 | LOCK_SV_MUTEX; \ | |
aea4f609 | 210 | if (DEBUG_D_TEST) \ |
053fc874 GS |
211 | del_sv(p); \ |
212 | else \ | |
213 | plant_SV(p); \ | |
214 | UNLOCK_SV_MUTEX; \ | |
215 | } STMT_END | |
a0d0e21e | 216 | |
76e3520e | 217 | STATIC void |
cea2e8a9 | 218 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 219 | { |
aea4f609 | 220 | if (DEBUG_D_TEST) { |
4633a7c4 | 221 | SV* sva; |
a0d0e21e LW |
222 | SV* sv; |
223 | SV* svend; | |
224 | int ok = 0; | |
3280af22 | 225 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
226 | sv = sva + 1; |
227 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
228 | if (p >= sv && p < svend) |
229 | ok = 1; | |
230 | } | |
231 | if (!ok) { | |
0453d815 | 232 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 233 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
1d7c1841 GS |
234 | "Attempt to free non-arena SV: 0x%"UVxf, |
235 | PTR2UV(p)); | |
a0d0e21e LW |
236 | return; |
237 | } | |
238 | } | |
4561caa4 | 239 | plant_SV(p); |
463ee0b2 | 240 | } |
a0d0e21e | 241 | |
4561caa4 CS |
242 | #else /* ! DEBUGGING */ |
243 | ||
244 | #define del_SV(p) plant_SV(p) | |
245 | ||
246 | #endif /* DEBUGGING */ | |
463ee0b2 | 247 | |
645c22ef DM |
248 | |
249 | /* | |
ccfc67b7 JH |
250 | =head1 SV Manipulation Functions |
251 | ||
645c22ef DM |
252 | =for apidoc sv_add_arena |
253 | ||
254 | Given a chunk of memory, link it to the head of the list of arenas, | |
255 | and split it into a list of free SVs. | |
256 | ||
257 | =cut | |
258 | */ | |
259 | ||
4633a7c4 | 260 | void |
864dbfa3 | 261 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 262 | { |
4633a7c4 | 263 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
264 | register SV* sv; |
265 | register SV* svend; | |
14dd3ad8 | 266 | Zero(ptr, size, char); |
4633a7c4 LW |
267 | |
268 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 269 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
270 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
271 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
272 | ||
3280af22 NIS |
273 | PL_sv_arenaroot = sva; |
274 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
275 | |
276 | svend = &sva[SvREFCNT(sva) - 1]; | |
277 | sv = sva + 1; | |
463ee0b2 | 278 | while (sv < svend) { |
a0d0e21e | 279 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 | 280 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
281 | sv++; |
282 | } | |
283 | SvANY(sv) = 0; | |
4633a7c4 LW |
284 | SvFLAGS(sv) = SVTYPEMASK; |
285 | } | |
286 | ||
645c22ef DM |
287 | /* make some more SVs by adding another arena */ |
288 | ||
fba3b22e | 289 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 290 | STATIC SV* |
cea2e8a9 | 291 | S_more_sv(pTHX) |
4633a7c4 | 292 | { |
4561caa4 CS |
293 | register SV* sv; |
294 | ||
3280af22 NIS |
295 | if (PL_nice_chunk) { |
296 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
297 | PL_nice_chunk = Nullch; | |
30ad99e7 | 298 | PL_nice_chunk_size = 0; |
c07a80fd | 299 | } |
1edc1566 | 300 | else { |
301 | char *chunk; /* must use New here to match call to */ | |
302 | New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ | |
303 | sv_add_arena(chunk, 1008, 0); | |
304 | } | |
4561caa4 CS |
305 | uproot_SV(sv); |
306 | return sv; | |
463ee0b2 LW |
307 | } |
308 | ||
ff276b08 | 309 | /* visit(): call the named function for each non-free SV in the arenas. */ |
645c22ef | 310 | |
5226ed68 | 311 | STATIC I32 |
cea2e8a9 | 312 | S_visit(pTHX_ SVFUNC_t f) |
8990e307 | 313 | { |
4633a7c4 | 314 | SV* sva; |
8990e307 LW |
315 | SV* sv; |
316 | register SV* svend; | |
5226ed68 | 317 | I32 visited = 0; |
8990e307 | 318 | |
3280af22 | 319 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 320 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 | 321 | for (sv = sva + 1; sv < svend; ++sv) { |
f25c30a3 | 322 | if (SvTYPE(sv) != SVTYPEMASK && SvREFCNT(sv)) { |
acfe0abc | 323 | (FCALL)(aTHX_ sv); |
5226ed68 JH |
324 | ++visited; |
325 | } | |
8990e307 LW |
326 | } |
327 | } | |
5226ed68 | 328 | return visited; |
8990e307 LW |
329 | } |
330 | ||
758a08c3 JH |
331 | #ifdef DEBUGGING |
332 | ||
645c22ef DM |
333 | /* called by sv_report_used() for each live SV */ |
334 | ||
335 | static void | |
acfe0abc | 336 | do_report_used(pTHX_ SV *sv) |
645c22ef DM |
337 | { |
338 | if (SvTYPE(sv) != SVTYPEMASK) { | |
339 | PerlIO_printf(Perl_debug_log, "****\n"); | |
340 | sv_dump(sv); | |
341 | } | |
342 | } | |
758a08c3 | 343 | #endif |
645c22ef DM |
344 | |
345 | /* | |
346 | =for apidoc sv_report_used | |
347 | ||
348 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
349 | ||
350 | =cut | |
351 | */ | |
352 | ||
8990e307 | 353 | void |
864dbfa3 | 354 | Perl_sv_report_used(pTHX) |
4561caa4 | 355 | { |
ff270d3a | 356 | #ifdef DEBUGGING |
0b94c7bb | 357 | visit(do_report_used); |
ff270d3a | 358 | #endif |
4561caa4 CS |
359 | } |
360 | ||
645c22ef DM |
361 | /* called by sv_clean_objs() for each live SV */ |
362 | ||
363 | static void | |
acfe0abc | 364 | do_clean_objs(pTHX_ SV *sv) |
645c22ef DM |
365 | { |
366 | SV* rv; | |
367 | ||
368 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
369 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv))); | |
370 | if (SvWEAKREF(sv)) { | |
371 | sv_del_backref(sv); | |
372 | SvWEAKREF_off(sv); | |
373 | SvRV(sv) = 0; | |
374 | } else { | |
375 | SvROK_off(sv); | |
376 | SvRV(sv) = 0; | |
377 | SvREFCNT_dec(rv); | |
378 | } | |
379 | } | |
380 | ||
381 | /* XXX Might want to check arrays, etc. */ | |
382 | } | |
383 | ||
384 | /* called by sv_clean_objs() for each live SV */ | |
385 | ||
386 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
387 | static void | |
acfe0abc | 388 | do_clean_named_objs(pTHX_ SV *sv) |
645c22ef DM |
389 | { |
390 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
391 | if ( SvOBJECT(GvSV(sv)) || | |
392 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || | |
393 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
394 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
395 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
396 | { | |
397 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
398 | SvREFCNT_dec(sv); | |
399 | } | |
400 | } | |
401 | } | |
402 | #endif | |
403 | ||
404 | /* | |
405 | =for apidoc sv_clean_objs | |
406 | ||
407 | Attempt to destroy all objects not yet freed | |
408 | ||
409 | =cut | |
410 | */ | |
411 | ||
4561caa4 | 412 | void |
864dbfa3 | 413 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 414 | { |
3280af22 | 415 | PL_in_clean_objs = TRUE; |
0b94c7bb | 416 | visit(do_clean_objs); |
4561caa4 | 417 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 418 | /* some barnacles may yet remain, clinging to typeglobs */ |
0b94c7bb | 419 | visit(do_clean_named_objs); |
4561caa4 | 420 | #endif |
3280af22 | 421 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
422 | } |
423 | ||
645c22ef DM |
424 | /* called by sv_clean_all() for each live SV */ |
425 | ||
426 | static void | |
acfe0abc | 427 | do_clean_all(pTHX_ SV *sv) |
645c22ef DM |
428 | { |
429 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
430 | SvFLAGS(sv) |= SVf_BREAK; | |
431 | SvREFCNT_dec(sv); | |
432 | } | |
433 | ||
434 | /* | |
435 | =for apidoc sv_clean_all | |
436 | ||
437 | Decrement the refcnt of each remaining SV, possibly triggering a | |
438 | cleanup. This function may have to be called multiple times to free | |
ff276b08 | 439 | SVs which are in complex self-referential hierarchies. |
645c22ef DM |
440 | |
441 | =cut | |
442 | */ | |
443 | ||
5226ed68 | 444 | I32 |
864dbfa3 | 445 | Perl_sv_clean_all(pTHX) |
8990e307 | 446 | { |
5226ed68 | 447 | I32 cleaned; |
3280af22 | 448 | PL_in_clean_all = TRUE; |
5226ed68 | 449 | cleaned = visit(do_clean_all); |
3280af22 | 450 | PL_in_clean_all = FALSE; |
5226ed68 | 451 | return cleaned; |
8990e307 | 452 | } |
463ee0b2 | 453 | |
645c22ef DM |
454 | /* |
455 | =for apidoc sv_free_arenas | |
456 | ||
457 | Deallocate the memory used by all arenas. Note that all the individual SV | |
458 | heads and bodies within the arenas must already have been freed. | |
459 | ||
460 | =cut | |
461 | */ | |
462 | ||
4633a7c4 | 463 | void |
864dbfa3 | 464 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
465 | { |
466 | SV* sva; | |
467 | SV* svanext; | |
612f20c3 | 468 | XPV *arena, *arenanext; |
4633a7c4 LW |
469 | |
470 | /* Free arenas here, but be careful about fake ones. (We assume | |
471 | contiguity of the fake ones with the corresponding real ones.) */ | |
472 | ||
3280af22 | 473 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
474 | svanext = (SV*) SvANY(sva); |
475 | while (svanext && SvFAKE(svanext)) | |
476 | svanext = (SV*) SvANY(svanext); | |
477 | ||
478 | if (!SvFAKE(sva)) | |
1edc1566 | 479 | Safefree((void *)sva); |
4633a7c4 | 480 | } |
5f05dabc | 481 | |
612f20c3 GS |
482 | for (arena = PL_xiv_arenaroot; arena; arena = arenanext) { |
483 | arenanext = (XPV*)arena->xpv_pv; | |
484 | Safefree(arena); | |
485 | } | |
486 | PL_xiv_arenaroot = 0; | |
487 | ||
488 | for (arena = PL_xnv_arenaroot; arena; arena = arenanext) { | |
489 | arenanext = (XPV*)arena->xpv_pv; | |
490 | Safefree(arena); | |
491 | } | |
492 | PL_xnv_arenaroot = 0; | |
493 | ||
494 | for (arena = PL_xrv_arenaroot; arena; arena = arenanext) { | |
495 | arenanext = (XPV*)arena->xpv_pv; | |
496 | Safefree(arena); | |
497 | } | |
498 | PL_xrv_arenaroot = 0; | |
499 | ||
500 | for (arena = PL_xpv_arenaroot; arena; arena = arenanext) { | |
501 | arenanext = (XPV*)arena->xpv_pv; | |
502 | Safefree(arena); | |
503 | } | |
504 | PL_xpv_arenaroot = 0; | |
505 | ||
506 | for (arena = (XPV*)PL_xpviv_arenaroot; arena; arena = arenanext) { | |
507 | arenanext = (XPV*)arena->xpv_pv; | |
508 | Safefree(arena); | |
509 | } | |
510 | PL_xpviv_arenaroot = 0; | |
511 | ||
512 | for (arena = (XPV*)PL_xpvnv_arenaroot; arena; arena = arenanext) { | |
513 | arenanext = (XPV*)arena->xpv_pv; | |
514 | Safefree(arena); | |
515 | } | |
516 | PL_xpvnv_arenaroot = 0; | |
517 | ||
518 | for (arena = (XPV*)PL_xpvcv_arenaroot; arena; arena = arenanext) { | |
519 | arenanext = (XPV*)arena->xpv_pv; | |
520 | Safefree(arena); | |
521 | } | |
522 | PL_xpvcv_arenaroot = 0; | |
523 | ||
524 | for (arena = (XPV*)PL_xpvav_arenaroot; arena; arena = arenanext) { | |
525 | arenanext = (XPV*)arena->xpv_pv; | |
526 | Safefree(arena); | |
527 | } | |
528 | PL_xpvav_arenaroot = 0; | |
529 | ||
530 | for (arena = (XPV*)PL_xpvhv_arenaroot; arena; arena = arenanext) { | |
531 | arenanext = (XPV*)arena->xpv_pv; | |
532 | Safefree(arena); | |
533 | } | |
534 | PL_xpvhv_arenaroot = 0; | |
535 | ||
536 | for (arena = (XPV*)PL_xpvmg_arenaroot; arena; arena = arenanext) { | |
537 | arenanext = (XPV*)arena->xpv_pv; | |
538 | Safefree(arena); | |
539 | } | |
540 | PL_xpvmg_arenaroot = 0; | |
541 | ||
542 | for (arena = (XPV*)PL_xpvlv_arenaroot; arena; arena = arenanext) { | |
543 | arenanext = (XPV*)arena->xpv_pv; | |
544 | Safefree(arena); | |
545 | } | |
546 | PL_xpvlv_arenaroot = 0; | |
547 | ||
548 | for (arena = (XPV*)PL_xpvbm_arenaroot; arena; arena = arenanext) { | |
549 | arenanext = (XPV*)arena->xpv_pv; | |
550 | Safefree(arena); | |
551 | } | |
552 | PL_xpvbm_arenaroot = 0; | |
553 | ||
554 | for (arena = (XPV*)PL_he_arenaroot; arena; arena = arenanext) { | |
555 | arenanext = (XPV*)arena->xpv_pv; | |
556 | Safefree(arena); | |
557 | } | |
558 | PL_he_arenaroot = 0; | |
559 | ||
3280af22 NIS |
560 | if (PL_nice_chunk) |
561 | Safefree(PL_nice_chunk); | |
562 | PL_nice_chunk = Nullch; | |
563 | PL_nice_chunk_size = 0; | |
564 | PL_sv_arenaroot = 0; | |
565 | PL_sv_root = 0; | |
4633a7c4 LW |
566 | } |
567 | ||
645c22ef DM |
568 | /* |
569 | =for apidoc report_uninit | |
570 | ||
571 | Print appropriate "Use of uninitialized variable" warning | |
572 | ||
573 | =cut | |
574 | */ | |
575 | ||
1d7c1841 GS |
576 | void |
577 | Perl_report_uninit(pTHX) | |
578 | { | |
579 | if (PL_op) | |
9014280d | 580 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, |
53e06cf0 | 581 | " in ", OP_DESC(PL_op)); |
1d7c1841 | 582 | else |
9014280d | 583 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, "", ""); |
1d7c1841 GS |
584 | } |
585 | ||
645c22ef DM |
586 | /* grab a new IV body from the free list, allocating more if necessary */ |
587 | ||
76e3520e | 588 | STATIC XPVIV* |
cea2e8a9 | 589 | S_new_xiv(pTHX) |
463ee0b2 | 590 | { |
ea7c11a3 | 591 | IV* xiv; |
cbe51380 GS |
592 | LOCK_SV_MUTEX; |
593 | if (!PL_xiv_root) | |
594 | more_xiv(); | |
595 | xiv = PL_xiv_root; | |
596 | /* | |
597 | * See comment in more_xiv() -- RAM. | |
598 | */ | |
599 | PL_xiv_root = *(IV**)xiv; | |
600 | UNLOCK_SV_MUTEX; | |
601 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
602 | } |
603 | ||
645c22ef DM |
604 | /* return an IV body to the free list */ |
605 | ||
76e3520e | 606 | STATIC void |
cea2e8a9 | 607 | S_del_xiv(pTHX_ XPVIV *p) |
463ee0b2 | 608 | { |
23e6a22f | 609 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 610 | LOCK_SV_MUTEX; |
3280af22 NIS |
611 | *(IV**)xiv = PL_xiv_root; |
612 | PL_xiv_root = xiv; | |
cbe51380 | 613 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
614 | } |
615 | ||
645c22ef DM |
616 | /* allocate another arena's worth of IV bodies */ |
617 | ||
cbe51380 | 618 | STATIC void |
cea2e8a9 | 619 | S_more_xiv(pTHX) |
463ee0b2 | 620 | { |
ea7c11a3 SM |
621 | register IV* xiv; |
622 | register IV* xivend; | |
8c52afec IZ |
623 | XPV* ptr; |
624 | New(705, ptr, 1008/sizeof(XPV), XPV); | |
645c22ef | 625 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
3280af22 | 626 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ |
a0d0e21e | 627 | |
ea7c11a3 SM |
628 | xiv = (IV*) ptr; |
629 | xivend = &xiv[1008 / sizeof(IV) - 1]; | |
645c22ef | 630 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ |
3280af22 | 631 | PL_xiv_root = xiv; |
463ee0b2 | 632 | while (xiv < xivend) { |
ea7c11a3 | 633 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
634 | xiv++; |
635 | } | |
ea7c11a3 | 636 | *(IV**)xiv = 0; |
463ee0b2 LW |
637 | } |
638 | ||
645c22ef DM |
639 | /* grab a new NV body from the free list, allocating more if necessary */ |
640 | ||
76e3520e | 641 | STATIC XPVNV* |
cea2e8a9 | 642 | S_new_xnv(pTHX) |
463ee0b2 | 643 | { |
65202027 | 644 | NV* xnv; |
cbe51380 GS |
645 | LOCK_SV_MUTEX; |
646 | if (!PL_xnv_root) | |
647 | more_xnv(); | |
648 | xnv = PL_xnv_root; | |
65202027 | 649 | PL_xnv_root = *(NV**)xnv; |
cbe51380 GS |
650 | UNLOCK_SV_MUTEX; |
651 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
652 | } |
653 | ||
645c22ef DM |
654 | /* return an NV body to the free list */ |
655 | ||
76e3520e | 656 | STATIC void |
cea2e8a9 | 657 | S_del_xnv(pTHX_ XPVNV *p) |
463ee0b2 | 658 | { |
65202027 | 659 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 660 | LOCK_SV_MUTEX; |
65202027 | 661 | *(NV**)xnv = PL_xnv_root; |
3280af22 | 662 | PL_xnv_root = xnv; |
cbe51380 | 663 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
664 | } |
665 | ||
645c22ef DM |
666 | /* allocate another arena's worth of NV bodies */ |
667 | ||
cbe51380 | 668 | STATIC void |
cea2e8a9 | 669 | S_more_xnv(pTHX) |
463ee0b2 | 670 | { |
65202027 DS |
671 | register NV* xnv; |
672 | register NV* xnvend; | |
612f20c3 GS |
673 | XPV *ptr; |
674 | New(711, ptr, 1008/sizeof(XPV), XPV); | |
675 | ptr->xpv_pv = (char*)PL_xnv_arenaroot; | |
676 | PL_xnv_arenaroot = ptr; | |
677 | ||
678 | xnv = (NV*) ptr; | |
65202027 DS |
679 | xnvend = &xnv[1008 / sizeof(NV) - 1]; |
680 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ | |
3280af22 | 681 | PL_xnv_root = xnv; |
463ee0b2 | 682 | while (xnv < xnvend) { |
65202027 | 683 | *(NV**)xnv = (NV*)(xnv + 1); |
463ee0b2 LW |
684 | xnv++; |
685 | } | |
65202027 | 686 | *(NV**)xnv = 0; |
463ee0b2 LW |
687 | } |
688 | ||
645c22ef DM |
689 | /* grab a new struct xrv from the free list, allocating more if necessary */ |
690 | ||
76e3520e | 691 | STATIC XRV* |
cea2e8a9 | 692 | S_new_xrv(pTHX) |
ed6116ce LW |
693 | { |
694 | XRV* xrv; | |
cbe51380 GS |
695 | LOCK_SV_MUTEX; |
696 | if (!PL_xrv_root) | |
697 | more_xrv(); | |
698 | xrv = PL_xrv_root; | |
699 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
700 | UNLOCK_SV_MUTEX; | |
701 | return xrv; | |
ed6116ce LW |
702 | } |
703 | ||
645c22ef DM |
704 | /* return a struct xrv to the free list */ |
705 | ||
76e3520e | 706 | STATIC void |
cea2e8a9 | 707 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 708 | { |
cbe51380 | 709 | LOCK_SV_MUTEX; |
3280af22 NIS |
710 | p->xrv_rv = (SV*)PL_xrv_root; |
711 | PL_xrv_root = p; | |
cbe51380 | 712 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
713 | } |
714 | ||
645c22ef DM |
715 | /* allocate another arena's worth of struct xrv */ |
716 | ||
cbe51380 | 717 | STATIC void |
cea2e8a9 | 718 | S_more_xrv(pTHX) |
ed6116ce | 719 | { |
ed6116ce LW |
720 | register XRV* xrv; |
721 | register XRV* xrvend; | |
612f20c3 GS |
722 | XPV *ptr; |
723 | New(712, ptr, 1008/sizeof(XPV), XPV); | |
724 | ptr->xpv_pv = (char*)PL_xrv_arenaroot; | |
725 | PL_xrv_arenaroot = ptr; | |
726 | ||
727 | xrv = (XRV*) ptr; | |
ed6116ce | 728 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
612f20c3 GS |
729 | xrv += (sizeof(XPV) - 1) / sizeof(XRV) + 1; |
730 | PL_xrv_root = xrv; | |
ed6116ce LW |
731 | while (xrv < xrvend) { |
732 | xrv->xrv_rv = (SV*)(xrv + 1); | |
733 | xrv++; | |
734 | } | |
735 | xrv->xrv_rv = 0; | |
ed6116ce LW |
736 | } |
737 | ||
645c22ef DM |
738 | /* grab a new struct xpv from the free list, allocating more if necessary */ |
739 | ||
76e3520e | 740 | STATIC XPV* |
cea2e8a9 | 741 | S_new_xpv(pTHX) |
463ee0b2 LW |
742 | { |
743 | XPV* xpv; | |
cbe51380 GS |
744 | LOCK_SV_MUTEX; |
745 | if (!PL_xpv_root) | |
746 | more_xpv(); | |
747 | xpv = PL_xpv_root; | |
748 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
749 | UNLOCK_SV_MUTEX; | |
750 | return xpv; | |
463ee0b2 LW |
751 | } |
752 | ||
645c22ef DM |
753 | /* return a struct xpv to the free list */ |
754 | ||
76e3520e | 755 | STATIC void |
cea2e8a9 | 756 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 757 | { |
cbe51380 | 758 | LOCK_SV_MUTEX; |
3280af22 NIS |
759 | p->xpv_pv = (char*)PL_xpv_root; |
760 | PL_xpv_root = p; | |
cbe51380 | 761 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
762 | } |
763 | ||
645c22ef DM |
764 | /* allocate another arena's worth of struct xpv */ |
765 | ||
cbe51380 | 766 | STATIC void |
cea2e8a9 | 767 | S_more_xpv(pTHX) |
463ee0b2 | 768 | { |
463ee0b2 LW |
769 | register XPV* xpv; |
770 | register XPV* xpvend; | |
612f20c3 GS |
771 | New(713, xpv, 1008/sizeof(XPV), XPV); |
772 | xpv->xpv_pv = (char*)PL_xpv_arenaroot; | |
773 | PL_xpv_arenaroot = xpv; | |
774 | ||
463ee0b2 | 775 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
612f20c3 | 776 | PL_xpv_root = ++xpv; |
463ee0b2 LW |
777 | while (xpv < xpvend) { |
778 | xpv->xpv_pv = (char*)(xpv + 1); | |
779 | xpv++; | |
780 | } | |
781 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
782 | } |
783 | ||
645c22ef DM |
784 | /* grab a new struct xpviv from the free list, allocating more if necessary */ |
785 | ||
932e9ff9 VB |
786 | STATIC XPVIV* |
787 | S_new_xpviv(pTHX) | |
788 | { | |
789 | XPVIV* xpviv; | |
790 | LOCK_SV_MUTEX; | |
791 | if (!PL_xpviv_root) | |
792 | more_xpviv(); | |
793 | xpviv = PL_xpviv_root; | |
794 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
795 | UNLOCK_SV_MUTEX; | |
796 | return xpviv; | |
797 | } | |
798 | ||
645c22ef DM |
799 | /* return a struct xpviv to the free list */ |
800 | ||
932e9ff9 VB |
801 | STATIC void |
802 | S_del_xpviv(pTHX_ XPVIV *p) | |
803 | { | |
804 | LOCK_SV_MUTEX; | |
805 | p->xpv_pv = (char*)PL_xpviv_root; | |
806 | PL_xpviv_root = p; | |
807 | UNLOCK_SV_MUTEX; | |
808 | } | |
809 | ||
645c22ef DM |
810 | /* allocate another arena's worth of struct xpviv */ |
811 | ||
932e9ff9 VB |
812 | STATIC void |
813 | S_more_xpviv(pTHX) | |
814 | { | |
815 | register XPVIV* xpviv; | |
816 | register XPVIV* xpvivend; | |
612f20c3 GS |
817 | New(714, xpviv, 1008/sizeof(XPVIV), XPVIV); |
818 | xpviv->xpv_pv = (char*)PL_xpviv_arenaroot; | |
819 | PL_xpviv_arenaroot = xpviv; | |
820 | ||
932e9ff9 | 821 | xpvivend = &xpviv[1008 / sizeof(XPVIV) - 1]; |
612f20c3 | 822 | PL_xpviv_root = ++xpviv; |
932e9ff9 VB |
823 | while (xpviv < xpvivend) { |
824 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
825 | xpviv++; | |
826 | } | |
827 | xpviv->xpv_pv = 0; | |
828 | } | |
829 | ||
645c22ef DM |
830 | /* grab a new struct xpvnv from the free list, allocating more if necessary */ |
831 | ||
932e9ff9 VB |
832 | STATIC XPVNV* |
833 | S_new_xpvnv(pTHX) | |
834 | { | |
835 | XPVNV* xpvnv; | |
836 | LOCK_SV_MUTEX; | |
837 | if (!PL_xpvnv_root) | |
838 | more_xpvnv(); | |
839 | xpvnv = PL_xpvnv_root; | |
840 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
841 | UNLOCK_SV_MUTEX; | |
842 | return xpvnv; | |
843 | } | |
844 | ||
645c22ef DM |
845 | /* return a struct xpvnv to the free list */ |
846 | ||
932e9ff9 VB |
847 | STATIC void |
848 | S_del_xpvnv(pTHX_ XPVNV *p) | |
849 | { | |
850 | LOCK_SV_MUTEX; | |
851 | p->xpv_pv = (char*)PL_xpvnv_root; | |
852 | PL_xpvnv_root = p; | |
853 | UNLOCK_SV_MUTEX; | |
854 | } | |
855 | ||
645c22ef DM |
856 | /* allocate another arena's worth of struct xpvnv */ |
857 | ||
932e9ff9 VB |
858 | STATIC void |
859 | S_more_xpvnv(pTHX) | |
860 | { | |
861 | register XPVNV* xpvnv; | |
862 | register XPVNV* xpvnvend; | |
612f20c3 GS |
863 | New(715, xpvnv, 1008/sizeof(XPVNV), XPVNV); |
864 | xpvnv->xpv_pv = (char*)PL_xpvnv_arenaroot; | |
865 | PL_xpvnv_arenaroot = xpvnv; | |
866 | ||
932e9ff9 | 867 | xpvnvend = &xpvnv[1008 / sizeof(XPVNV) - 1]; |
612f20c3 | 868 | PL_xpvnv_root = ++xpvnv; |
932e9ff9 VB |
869 | while (xpvnv < xpvnvend) { |
870 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
871 | xpvnv++; | |
872 | } | |
873 | xpvnv->xpv_pv = 0; | |
874 | } | |
875 | ||
645c22ef DM |
876 | /* grab a new struct xpvcv from the free list, allocating more if necessary */ |
877 | ||
932e9ff9 VB |
878 | STATIC XPVCV* |
879 | S_new_xpvcv(pTHX) | |
880 | { | |
881 | XPVCV* xpvcv; | |
882 | LOCK_SV_MUTEX; | |
883 | if (!PL_xpvcv_root) | |
884 | more_xpvcv(); | |
885 | xpvcv = PL_xpvcv_root; | |
886 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
887 | UNLOCK_SV_MUTEX; | |
888 | return xpvcv; | |
889 | } | |
890 | ||
645c22ef DM |
891 | /* return a struct xpvcv to the free list */ |
892 | ||
932e9ff9 VB |
893 | STATIC void |
894 | S_del_xpvcv(pTHX_ XPVCV *p) | |
895 | { | |
896 | LOCK_SV_MUTEX; | |
897 | p->xpv_pv = (char*)PL_xpvcv_root; | |
898 | PL_xpvcv_root = p; | |
899 | UNLOCK_SV_MUTEX; | |
900 | } | |
901 | ||
645c22ef DM |
902 | /* allocate another arena's worth of struct xpvcv */ |
903 | ||
932e9ff9 VB |
904 | STATIC void |
905 | S_more_xpvcv(pTHX) | |
906 | { | |
907 | register XPVCV* xpvcv; | |
908 | register XPVCV* xpvcvend; | |
612f20c3 GS |
909 | New(716, xpvcv, 1008/sizeof(XPVCV), XPVCV); |
910 | xpvcv->xpv_pv = (char*)PL_xpvcv_arenaroot; | |
911 | PL_xpvcv_arenaroot = xpvcv; | |
912 | ||
932e9ff9 | 913 | xpvcvend = &xpvcv[1008 / sizeof(XPVCV) - 1]; |
612f20c3 | 914 | PL_xpvcv_root = ++xpvcv; |
932e9ff9 VB |
915 | while (xpvcv < xpvcvend) { |
916 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
917 | xpvcv++; | |
918 | } | |
919 | xpvcv->xpv_pv = 0; | |
920 | } | |
921 | ||
645c22ef DM |
922 | /* grab a new struct xpvav from the free list, allocating more if necessary */ |
923 | ||
932e9ff9 VB |
924 | STATIC XPVAV* |
925 | S_new_xpvav(pTHX) | |
926 | { | |
927 | XPVAV* xpvav; | |
928 | LOCK_SV_MUTEX; | |
929 | if (!PL_xpvav_root) | |
930 | more_xpvav(); | |
931 | xpvav = PL_xpvav_root; | |
932 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
933 | UNLOCK_SV_MUTEX; | |
934 | return xpvav; | |
935 | } | |
936 | ||
645c22ef DM |
937 | /* return a struct xpvav to the free list */ |
938 | ||
932e9ff9 VB |
939 | STATIC void |
940 | S_del_xpvav(pTHX_ XPVAV *p) | |
941 | { | |
942 | LOCK_SV_MUTEX; | |
943 | p->xav_array = (char*)PL_xpvav_root; | |
944 | PL_xpvav_root = p; | |
945 | UNLOCK_SV_MUTEX; | |
946 | } | |
947 | ||
645c22ef DM |
948 | /* allocate another arena's worth of struct xpvav */ |
949 | ||
932e9ff9 VB |
950 | STATIC void |
951 | S_more_xpvav(pTHX) | |
952 | { | |
953 | register XPVAV* xpvav; | |
954 | register XPVAV* xpvavend; | |
612f20c3 GS |
955 | New(717, xpvav, 1008/sizeof(XPVAV), XPVAV); |
956 | xpvav->xav_array = (char*)PL_xpvav_arenaroot; | |
957 | PL_xpvav_arenaroot = xpvav; | |
958 | ||
932e9ff9 | 959 | xpvavend = &xpvav[1008 / sizeof(XPVAV) - 1]; |
612f20c3 | 960 | PL_xpvav_root = ++xpvav; |
932e9ff9 VB |
961 | while (xpvav < xpvavend) { |
962 | xpvav->xav_array = (char*)(xpvav + 1); | |
963 | xpvav++; | |
964 | } | |
965 | xpvav->xav_array = 0; | |
966 | } | |
967 | ||
645c22ef DM |
968 | /* grab a new struct xpvhv from the free list, allocating more if necessary */ |
969 | ||
932e9ff9 VB |
970 | STATIC XPVHV* |
971 | S_new_xpvhv(pTHX) | |
972 | { | |
973 | XPVHV* xpvhv; | |
974 | LOCK_SV_MUTEX; | |
975 | if (!PL_xpvhv_root) | |
976 | more_xpvhv(); | |
977 | xpvhv = PL_xpvhv_root; | |
978 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
979 | UNLOCK_SV_MUTEX; | |
980 | return xpvhv; | |
981 | } | |
982 | ||
645c22ef DM |
983 | /* return a struct xpvhv to the free list */ |
984 | ||
932e9ff9 VB |
985 | STATIC void |
986 | S_del_xpvhv(pTHX_ XPVHV *p) | |
987 | { | |
988 | LOCK_SV_MUTEX; | |
989 | p->xhv_array = (char*)PL_xpvhv_root; | |
990 | PL_xpvhv_root = p; | |
991 | UNLOCK_SV_MUTEX; | |
992 | } | |
993 | ||
645c22ef DM |
994 | /* allocate another arena's worth of struct xpvhv */ |
995 | ||
932e9ff9 VB |
996 | STATIC void |
997 | S_more_xpvhv(pTHX) | |
998 | { | |
999 | register XPVHV* xpvhv; | |
1000 | register XPVHV* xpvhvend; | |
612f20c3 GS |
1001 | New(718, xpvhv, 1008/sizeof(XPVHV), XPVHV); |
1002 | xpvhv->xhv_array = (char*)PL_xpvhv_arenaroot; | |
1003 | PL_xpvhv_arenaroot = xpvhv; | |
1004 | ||
932e9ff9 | 1005 | xpvhvend = &xpvhv[1008 / sizeof(XPVHV) - 1]; |
612f20c3 | 1006 | PL_xpvhv_root = ++xpvhv; |
932e9ff9 VB |
1007 | while (xpvhv < xpvhvend) { |
1008 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
1009 | xpvhv++; | |
1010 | } | |
1011 | xpvhv->xhv_array = 0; | |
1012 | } | |
1013 | ||
645c22ef DM |
1014 | /* grab a new struct xpvmg from the free list, allocating more if necessary */ |
1015 | ||
932e9ff9 VB |
1016 | STATIC XPVMG* |
1017 | S_new_xpvmg(pTHX) | |
1018 | { | |
1019 | XPVMG* xpvmg; | |
1020 | LOCK_SV_MUTEX; | |
1021 | if (!PL_xpvmg_root) | |
1022 | more_xpvmg(); | |
1023 | xpvmg = PL_xpvmg_root; | |
1024 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
1025 | UNLOCK_SV_MUTEX; | |
1026 | return xpvmg; | |
1027 | } | |
1028 | ||
645c22ef DM |
1029 | /* return a struct xpvmg to the free list */ |
1030 | ||
932e9ff9 VB |
1031 | STATIC void |
1032 | S_del_xpvmg(pTHX_ XPVMG *p) | |
1033 | { | |
1034 | LOCK_SV_MUTEX; | |
1035 | p->xpv_pv = (char*)PL_xpvmg_root; | |
1036 | PL_xpvmg_root = p; | |
1037 | UNLOCK_SV_MUTEX; | |
1038 | } | |
1039 | ||
645c22ef DM |
1040 | /* allocate another arena's worth of struct xpvmg */ |
1041 | ||
932e9ff9 VB |
1042 | STATIC void |
1043 | S_more_xpvmg(pTHX) | |
1044 | { | |
1045 | register XPVMG* xpvmg; | |
1046 | register XPVMG* xpvmgend; | |
612f20c3 GS |
1047 | New(719, xpvmg, 1008/sizeof(XPVMG), XPVMG); |
1048 | xpvmg->xpv_pv = (char*)PL_xpvmg_arenaroot; | |
1049 | PL_xpvmg_arenaroot = xpvmg; | |
1050 | ||
932e9ff9 | 1051 | xpvmgend = &xpvmg[1008 / sizeof(XPVMG) - 1]; |
612f20c3 | 1052 | PL_xpvmg_root = ++xpvmg; |
932e9ff9 VB |
1053 | while (xpvmg < xpvmgend) { |
1054 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
1055 | xpvmg++; | |
1056 | } | |
1057 | xpvmg->xpv_pv = 0; | |
1058 | } | |
1059 | ||
645c22ef DM |
1060 | /* grab a new struct xpvlv from the free list, allocating more if necessary */ |
1061 | ||
932e9ff9 VB |
1062 | STATIC XPVLV* |
1063 | S_new_xpvlv(pTHX) | |
1064 | { | |
1065 | XPVLV* xpvlv; | |
1066 | LOCK_SV_MUTEX; | |
1067 | if (!PL_xpvlv_root) | |
1068 | more_xpvlv(); | |
1069 | xpvlv = PL_xpvlv_root; | |
1070 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
1071 | UNLOCK_SV_MUTEX; | |
1072 | return xpvlv; | |
1073 | } | |
1074 | ||
645c22ef DM |
1075 | /* return a struct xpvlv to the free list */ |
1076 | ||
932e9ff9 VB |
1077 | STATIC void |
1078 | S_del_xpvlv(pTHX_ XPVLV *p) | |
1079 | { | |
1080 | LOCK_SV_MUTEX; | |
1081 | p->xpv_pv = (char*)PL_xpvlv_root; | |
1082 | PL_xpvlv_root = p; | |
1083 | UNLOCK_SV_MUTEX; | |
1084 | } | |
1085 | ||
645c22ef DM |
1086 | /* allocate another arena's worth of struct xpvlv */ |
1087 | ||
932e9ff9 VB |
1088 | STATIC void |
1089 | S_more_xpvlv(pTHX) | |
1090 | { | |
1091 | register XPVLV* xpvlv; | |
1092 | register XPVLV* xpvlvend; | |
612f20c3 GS |
1093 | New(720, xpvlv, 1008/sizeof(XPVLV), XPVLV); |
1094 | xpvlv->xpv_pv = (char*)PL_xpvlv_arenaroot; | |
1095 | PL_xpvlv_arenaroot = xpvlv; | |
1096 | ||
932e9ff9 | 1097 | xpvlvend = &xpvlv[1008 / sizeof(XPVLV) - 1]; |
612f20c3 | 1098 | PL_xpvlv_root = ++xpvlv; |
932e9ff9 VB |
1099 | while (xpvlv < xpvlvend) { |
1100 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
1101 | xpvlv++; | |
1102 | } | |
1103 | xpvlv->xpv_pv = 0; | |
1104 | } | |
1105 | ||
645c22ef DM |
1106 | /* grab a new struct xpvbm from the free list, allocating more if necessary */ |
1107 | ||
932e9ff9 VB |
1108 | STATIC XPVBM* |
1109 | S_new_xpvbm(pTHX) | |
1110 | { | |
1111 | XPVBM* xpvbm; | |
1112 | LOCK_SV_MUTEX; | |
1113 | if (!PL_xpvbm_root) | |
1114 | more_xpvbm(); | |
1115 | xpvbm = PL_xpvbm_root; | |
1116 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
1117 | UNLOCK_SV_MUTEX; | |
1118 | return xpvbm; | |
1119 | } | |
1120 | ||
645c22ef DM |
1121 | /* return a struct xpvbm to the free list */ |
1122 | ||
932e9ff9 VB |
1123 | STATIC void |
1124 | S_del_xpvbm(pTHX_ XPVBM *p) | |
1125 | { | |
1126 | LOCK_SV_MUTEX; | |
1127 | p->xpv_pv = (char*)PL_xpvbm_root; | |
1128 | PL_xpvbm_root = p; | |
1129 | UNLOCK_SV_MUTEX; | |
1130 | } | |
1131 | ||
645c22ef DM |
1132 | /* allocate another arena's worth of struct xpvbm */ |
1133 | ||
932e9ff9 VB |
1134 | STATIC void |
1135 | S_more_xpvbm(pTHX) | |
1136 | { | |
1137 | register XPVBM* xpvbm; | |
1138 | register XPVBM* xpvbmend; | |
612f20c3 GS |
1139 | New(721, xpvbm, 1008/sizeof(XPVBM), XPVBM); |
1140 | xpvbm->xpv_pv = (char*)PL_xpvbm_arenaroot; | |
1141 | PL_xpvbm_arenaroot = xpvbm; | |
1142 | ||
932e9ff9 | 1143 | xpvbmend = &xpvbm[1008 / sizeof(XPVBM) - 1]; |
612f20c3 | 1144 | PL_xpvbm_root = ++xpvbm; |
932e9ff9 VB |
1145 | while (xpvbm < xpvbmend) { |
1146 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
1147 | xpvbm++; | |
1148 | } | |
1149 | xpvbm->xpv_pv = 0; | |
1150 | } | |
1151 | ||
7bab3ede MB |
1152 | #define my_safemalloc(s) (void*)safemalloc(s) |
1153 | #define my_safefree(p) safefree((char*)p) | |
463ee0b2 | 1154 | |
d33b2eba | 1155 | #ifdef PURIFY |
463ee0b2 | 1156 | |
d33b2eba GS |
1157 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
1158 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 1159 | |
d33b2eba GS |
1160 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1161 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1162 | |
d33b2eba GS |
1163 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
1164 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 1165 | |
d33b2eba GS |
1166 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1167 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1168 | |
d33b2eba GS |
1169 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1170 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1171 | |
d33b2eba GS |
1172 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1173 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1174 | |
d33b2eba GS |
1175 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1176 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1177 | |
d33b2eba GS |
1178 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1179 | #define del_XPVAV(p) my_safefree(p) | |
1180 | ||
1181 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1182 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1183 | |
d33b2eba GS |
1184 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1185 | #define del_XPVMG(p) my_safefree(p) | |
1186 | ||
1187 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) | |
1188 | #define del_XPVLV(p) my_safefree(p) | |
1189 | ||
1190 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1191 | #define del_XPVBM(p) my_safefree(p) | |
1192 | ||
1193 | #else /* !PURIFY */ | |
1194 | ||
1195 | #define new_XIV() (void*)new_xiv() | |
1196 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
1197 | ||
1198 | #define new_XNV() (void*)new_xnv() | |
1199 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 1200 | |
d33b2eba GS |
1201 | #define new_XRV() (void*)new_xrv() |
1202 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 1203 | |
d33b2eba GS |
1204 | #define new_XPV() (void*)new_xpv() |
1205 | #define del_XPV(p) del_xpv((XPV *)p) | |
1206 | ||
1207 | #define new_XPVIV() (void*)new_xpviv() | |
1208 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
1209 | ||
1210 | #define new_XPVNV() (void*)new_xpvnv() | |
1211 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
1212 | ||
1213 | #define new_XPVCV() (void*)new_xpvcv() | |
1214 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
1215 | ||
1216 | #define new_XPVAV() (void*)new_xpvav() | |
1217 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
1218 | ||
1219 | #define new_XPVHV() (void*)new_xpvhv() | |
1220 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
1c846c1f | 1221 | |
d33b2eba GS |
1222 | #define new_XPVMG() (void*)new_xpvmg() |
1223 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
1224 | ||
1225 | #define new_XPVLV() (void*)new_xpvlv() | |
1226 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
1227 | ||
1228 | #define new_XPVBM() (void*)new_xpvbm() | |
1229 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
1230 | ||
1231 | #endif /* PURIFY */ | |
9b94d1dd | 1232 | |
d33b2eba GS |
1233 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1234 | #define del_XPVGV(p) my_safefree(p) | |
1c846c1f | 1235 | |
d33b2eba GS |
1236 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1237 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1238 | |
d33b2eba GS |
1239 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1240 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1241 | |
954c1994 GS |
1242 | /* |
1243 | =for apidoc sv_upgrade | |
1244 | ||
ff276b08 | 1245 | Upgrade an SV to a more complex form. Generally adds a new body type to the |
645c22ef | 1246 | SV, then copies across as much information as possible from the old body. |
ff276b08 | 1247 | You generally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. |
954c1994 GS |
1248 | |
1249 | =cut | |
1250 | */ | |
1251 | ||
79072805 | 1252 | bool |
864dbfa3 | 1253 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 | 1254 | { |
c04a4dfe JH |
1255 | char* pv = NULL; |
1256 | U32 cur = 0; | |
1257 | U32 len = 0; | |
1258 | IV iv = 0; | |
1259 | NV nv = 0.0; | |
1260 | MAGIC* magic = NULL; | |
1261 | HV* stash = Nullhv; | |
79072805 | 1262 | |
765f542d NC |
1263 | if (mt != SVt_PV && SvIsCOW(sv)) { |
1264 | sv_force_normal_flags(sv, 0); | |
f130fd45 NIS |
1265 | } |
1266 | ||
79072805 LW |
1267 | if (SvTYPE(sv) == mt) |
1268 | return TRUE; | |
1269 | ||
a5f75d66 AD |
1270 | if (mt < SVt_PVIV) |
1271 | (void)SvOOK_off(sv); | |
1272 | ||
79072805 LW |
1273 | switch (SvTYPE(sv)) { |
1274 | case SVt_NULL: | |
1275 | pv = 0; | |
1276 | cur = 0; | |
1277 | len = 0; | |
1278 | iv = 0; | |
1279 | nv = 0.0; | |
1280 | magic = 0; | |
1281 | stash = 0; | |
1282 | break; | |
79072805 LW |
1283 | case SVt_IV: |
1284 | pv = 0; | |
1285 | cur = 0; | |
1286 | len = 0; | |
463ee0b2 | 1287 | iv = SvIVX(sv); |
65202027 | 1288 | nv = (NV)SvIVX(sv); |
79072805 LW |
1289 | del_XIV(SvANY(sv)); |
1290 | magic = 0; | |
1291 | stash = 0; | |
ed6116ce | 1292 | if (mt == SVt_NV) |
463ee0b2 | 1293 | mt = SVt_PVNV; |
ed6116ce LW |
1294 | else if (mt < SVt_PVIV) |
1295 | mt = SVt_PVIV; | |
79072805 LW |
1296 | break; |
1297 | case SVt_NV: | |
1298 | pv = 0; | |
1299 | cur = 0; | |
1300 | len = 0; | |
463ee0b2 | 1301 | nv = SvNVX(sv); |
1bd302c3 | 1302 | iv = I_V(nv); |
79072805 LW |
1303 | magic = 0; |
1304 | stash = 0; | |
1305 | del_XNV(SvANY(sv)); | |
1306 | SvANY(sv) = 0; | |
ed6116ce | 1307 | if (mt < SVt_PVNV) |
79072805 LW |
1308 | mt = SVt_PVNV; |
1309 | break; | |
ed6116ce LW |
1310 | case SVt_RV: |
1311 | pv = (char*)SvRV(sv); | |
1312 | cur = 0; | |
1313 | len = 0; | |
56431972 RB |
1314 | iv = PTR2IV(pv); |
1315 | nv = PTR2NV(pv); | |
ed6116ce LW |
1316 | del_XRV(SvANY(sv)); |
1317 | magic = 0; | |
1318 | stash = 0; | |
1319 | break; | |
79072805 | 1320 | case SVt_PV: |
463ee0b2 | 1321 | pv = SvPVX(sv); |
79072805 LW |
1322 | cur = SvCUR(sv); |
1323 | len = SvLEN(sv); | |
1324 | iv = 0; | |
1325 | nv = 0.0; | |
1326 | magic = 0; | |
1327 | stash = 0; | |
1328 | del_XPV(SvANY(sv)); | |
748a9306 LW |
1329 | if (mt <= SVt_IV) |
1330 | mt = SVt_PVIV; | |
1331 | else if (mt == SVt_NV) | |
1332 | mt = SVt_PVNV; | |
79072805 LW |
1333 | break; |
1334 | case SVt_PVIV: | |
463ee0b2 | 1335 | pv = SvPVX(sv); |
79072805 LW |
1336 | cur = SvCUR(sv); |
1337 | len = SvLEN(sv); | |
463ee0b2 | 1338 | iv = SvIVX(sv); |
79072805 LW |
1339 | nv = 0.0; |
1340 | magic = 0; | |
1341 | stash = 0; | |
1342 | del_XPVIV(SvANY(sv)); | |
1343 | break; | |
1344 | case SVt_PVNV: | |
463ee0b2 | 1345 | pv = SvPVX(sv); |
79072805 LW |
1346 | cur = SvCUR(sv); |
1347 | len = SvLEN(sv); | |
463ee0b2 LW |
1348 | iv = SvIVX(sv); |
1349 | nv = SvNVX(sv); | |
79072805 LW |
1350 | magic = 0; |
1351 | stash = 0; | |
1352 | del_XPVNV(SvANY(sv)); | |
1353 | break; | |
1354 | case SVt_PVMG: | |
463ee0b2 | 1355 | pv = SvPVX(sv); |
79072805 LW |
1356 | cur = SvCUR(sv); |
1357 | len = SvLEN(sv); | |
463ee0b2 LW |
1358 | iv = SvIVX(sv); |
1359 | nv = SvNVX(sv); | |
79072805 LW |
1360 | magic = SvMAGIC(sv); |
1361 | stash = SvSTASH(sv); | |
1362 | del_XPVMG(SvANY(sv)); | |
1363 | break; | |
1364 | default: | |
cea2e8a9 | 1365 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1366 | } |
1367 | ||
1368 | switch (mt) { | |
1369 | case SVt_NULL: | |
cea2e8a9 | 1370 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1371 | case SVt_IV: |
1372 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 1373 | SvIVX(sv) = iv; |
79072805 LW |
1374 | break; |
1375 | case SVt_NV: | |
1376 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 1377 | SvNVX(sv) = nv; |
79072805 | 1378 | break; |
ed6116ce LW |
1379 | case SVt_RV: |
1380 | SvANY(sv) = new_XRV(); | |
1381 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 1382 | break; |
79072805 LW |
1383 | case SVt_PV: |
1384 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 1385 | SvPVX(sv) = pv; |
79072805 LW |
1386 | SvCUR(sv) = cur; |
1387 | SvLEN(sv) = len; | |
1388 | break; | |
1389 | case SVt_PVIV: | |
1390 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 1391 | SvPVX(sv) = pv; |
79072805 LW |
1392 | SvCUR(sv) = cur; |
1393 | SvLEN(sv) = len; | |
463ee0b2 | 1394 | SvIVX(sv) = iv; |
79072805 | 1395 | if (SvNIOK(sv)) |
a0d0e21e | 1396 | (void)SvIOK_on(sv); |
79072805 LW |
1397 | SvNOK_off(sv); |
1398 | break; | |
1399 | case SVt_PVNV: | |
1400 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 1401 | SvPVX(sv) = pv; |
79072805 LW |
1402 | SvCUR(sv) = cur; |
1403 | SvLEN(sv) = len; | |
463ee0b2 LW |
1404 | SvIVX(sv) = iv; |
1405 | SvNVX(sv) = nv; | |
79072805 LW |
1406 | break; |
1407 | case SVt_PVMG: | |
1408 | SvANY(sv) = new_XPVMG(); | |
463ee0b2 | 1409 | SvPVX(sv) = pv; |
79072805 LW |
1410 | SvCUR(sv) = cur; |
1411 | SvLEN(sv) = len; | |
463ee0b2 LW |
1412 | SvIVX(sv) = iv; |
1413 | SvNVX(sv) = nv; | |
79072805 LW |
1414 | SvMAGIC(sv) = magic; |
1415 | SvSTASH(sv) = stash; | |
1416 | break; | |
1417 | case SVt_PVLV: | |
1418 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 1419 | SvPVX(sv) = pv; |
79072805 LW |
1420 | SvCUR(sv) = cur; |
1421 | SvLEN(sv) = len; | |
463ee0b2 LW |
1422 | SvIVX(sv) = iv; |
1423 | SvNVX(sv) = nv; | |
79072805 LW |
1424 | SvMAGIC(sv) = magic; |
1425 | SvSTASH(sv) = stash; | |
1426 | LvTARGOFF(sv) = 0; | |
1427 | LvTARGLEN(sv) = 0; | |
1428 | LvTARG(sv) = 0; | |
1429 | LvTYPE(sv) = 0; | |
1430 | break; | |
1431 | case SVt_PVAV: | |
1432 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
1433 | if (pv) |
1434 | Safefree(pv); | |
2304df62 | 1435 | SvPVX(sv) = 0; |
d1bf51dd | 1436 | AvMAX(sv) = -1; |
93965878 | 1437 | AvFILLp(sv) = -1; |
463ee0b2 LW |
1438 | SvIVX(sv) = 0; |
1439 | SvNVX(sv) = 0.0; | |
1440 | SvMAGIC(sv) = magic; | |
1441 | SvSTASH(sv) = stash; | |
1442 | AvALLOC(sv) = 0; | |
79072805 LW |
1443 | AvARYLEN(sv) = 0; |
1444 | AvFLAGS(sv) = 0; | |
1445 | break; | |
1446 | case SVt_PVHV: | |
1447 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1448 | if (pv) |
1449 | Safefree(pv); | |
1450 | SvPVX(sv) = 0; | |
1451 | HvFILL(sv) = 0; | |
1452 | HvMAX(sv) = 0; | |
8aacddc1 NIS |
1453 | HvTOTALKEYS(sv) = 0; |
1454 | HvPLACEHOLDERS(sv) = 0; | |
79072805 LW |
1455 | SvMAGIC(sv) = magic; |
1456 | SvSTASH(sv) = stash; | |
79072805 LW |
1457 | HvRITER(sv) = 0; |
1458 | HvEITER(sv) = 0; | |
1459 | HvPMROOT(sv) = 0; | |
1460 | HvNAME(sv) = 0; | |
79072805 LW |
1461 | break; |
1462 | case SVt_PVCV: | |
1463 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1464 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 1465 | SvPVX(sv) = pv; |
79072805 LW |
1466 | SvCUR(sv) = cur; |
1467 | SvLEN(sv) = len; | |
463ee0b2 LW |
1468 | SvIVX(sv) = iv; |
1469 | SvNVX(sv) = nv; | |
79072805 LW |
1470 | SvMAGIC(sv) = magic; |
1471 | SvSTASH(sv) = stash; | |
79072805 LW |
1472 | break; |
1473 | case SVt_PVGV: | |
1474 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 1475 | SvPVX(sv) = pv; |
79072805 LW |
1476 | SvCUR(sv) = cur; |
1477 | SvLEN(sv) = len; | |
463ee0b2 LW |
1478 | SvIVX(sv) = iv; |
1479 | SvNVX(sv) = nv; | |
79072805 LW |
1480 | SvMAGIC(sv) = magic; |
1481 | SvSTASH(sv) = stash; | |
93a17b20 | 1482 | GvGP(sv) = 0; |
79072805 LW |
1483 | GvNAME(sv) = 0; |
1484 | GvNAMELEN(sv) = 0; | |
1485 | GvSTASH(sv) = 0; | |
a5f75d66 | 1486 | GvFLAGS(sv) = 0; |
79072805 LW |
1487 | break; |
1488 | case SVt_PVBM: | |
1489 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 1490 | SvPVX(sv) = pv; |
79072805 LW |
1491 | SvCUR(sv) = cur; |
1492 | SvLEN(sv) = len; | |
463ee0b2 LW |
1493 | SvIVX(sv) = iv; |
1494 | SvNVX(sv) = nv; | |
79072805 LW |
1495 | SvMAGIC(sv) = magic; |
1496 | SvSTASH(sv) = stash; | |
1497 | BmRARE(sv) = 0; | |
1498 | BmUSEFUL(sv) = 0; | |
1499 | BmPREVIOUS(sv) = 0; | |
1500 | break; | |
1501 | case SVt_PVFM: | |
1502 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1503 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 1504 | SvPVX(sv) = pv; |
79072805 LW |
1505 | SvCUR(sv) = cur; |
1506 | SvLEN(sv) = len; | |
463ee0b2 LW |
1507 | SvIVX(sv) = iv; |
1508 | SvNVX(sv) = nv; | |
79072805 LW |
1509 | SvMAGIC(sv) = magic; |
1510 | SvSTASH(sv) = stash; | |
79072805 | 1511 | break; |
8990e307 LW |
1512 | case SVt_PVIO: |
1513 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1514 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
1515 | SvPVX(sv) = pv; |
1516 | SvCUR(sv) = cur; | |
1517 | SvLEN(sv) = len; | |
1518 | SvIVX(sv) = iv; | |
1519 | SvNVX(sv) = nv; | |
1520 | SvMAGIC(sv) = magic; | |
1521 | SvSTASH(sv) = stash; | |
85e6fe83 | 1522 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1523 | break; |
1524 | } | |
1525 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
1526 | SvFLAGS(sv) |= mt; | |
79072805 LW |
1527 | return TRUE; |
1528 | } | |
1529 | ||
645c22ef DM |
1530 | /* |
1531 | =for apidoc sv_backoff | |
1532 | ||
1533 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1534 | wrapper instead. | |
1535 | ||
1536 | =cut | |
1537 | */ | |
1538 | ||
79072805 | 1539 | int |
864dbfa3 | 1540 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1541 | { |
1542 | assert(SvOOK(sv)); | |
463ee0b2 LW |
1543 | if (SvIVX(sv)) { |
1544 | char *s = SvPVX(sv); | |
1545 | SvLEN(sv) += SvIVX(sv); | |
1546 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 1547 | SvIV_set(sv, 0); |
463ee0b2 | 1548 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1549 | } |
1550 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1551 | return 0; |
79072805 LW |
1552 | } |
1553 | ||
954c1994 GS |
1554 | /* |
1555 | =for apidoc sv_grow | |
1556 | ||
645c22ef DM |
1557 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1558 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1559 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1560 | |
1561 | =cut | |
1562 | */ | |
1563 | ||
79072805 | 1564 | char * |
864dbfa3 | 1565 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1566 | { |
1567 | register char *s; | |
1568 | ||
54f0641b NIS |
1569 | |
1570 | ||
55497cff | 1571 | #ifdef HAS_64K_LIMIT |
79072805 | 1572 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1573 | PerlIO_printf(Perl_debug_log, |
1574 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1575 | my_exit(1); |
1576 | } | |
55497cff | 1577 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1578 | if (SvROK(sv)) |
1579 | sv_unref(sv); | |
79072805 LW |
1580 | if (SvTYPE(sv) < SVt_PV) { |
1581 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 1582 | s = SvPVX(sv); |
79072805 LW |
1583 | } |
1584 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1585 | sv_backoff(sv); | |
463ee0b2 | 1586 | s = SvPVX(sv); |
79072805 LW |
1587 | if (newlen > SvLEN(sv)) |
1588 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1589 | #ifdef HAS_64K_LIMIT |
1590 | if (newlen >= 0x10000) | |
1591 | newlen = 0xFFFF; | |
1592 | #endif | |
79072805 LW |
1593 | } |
1594 | else | |
463ee0b2 | 1595 | s = SvPVX(sv); |
54f0641b | 1596 | |
79072805 | 1597 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 1598 | if (SvLEN(sv) && s) { |
7bab3ede | 1599 | #ifdef MYMALLOC |
8d6dde3e IZ |
1600 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
1601 | if (newlen <= l) { | |
1602 | SvLEN_set(sv, l); | |
1603 | return s; | |
1604 | } else | |
c70c8a0a | 1605 | #endif |
79072805 | 1606 | Renew(s,newlen,char); |
8d6dde3e | 1607 | } |
4e83176d | 1608 | else { |
4e83176d | 1609 | New(703, s, newlen, char); |
40565179 | 1610 | if (SvPVX(sv) && SvCUR(sv)) { |
54f0641b | 1611 | Move(SvPVX(sv), s, (newlen < SvCUR(sv)) ? newlen : SvCUR(sv), char); |
40565179 | 1612 | } |
4e83176d | 1613 | } |
79072805 LW |
1614 | SvPV_set(sv, s); |
1615 | SvLEN_set(sv, newlen); | |
1616 | } | |
1617 | return s; | |
1618 | } | |
1619 | ||
954c1994 GS |
1620 | /* |
1621 | =for apidoc sv_setiv | |
1622 | ||
645c22ef DM |
1623 | Copies an integer into the given SV, upgrading first if necessary. |
1624 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1625 | |
1626 | =cut | |
1627 | */ | |
1628 | ||
79072805 | 1629 | void |
864dbfa3 | 1630 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1631 | { |
765f542d | 1632 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 LW |
1633 | switch (SvTYPE(sv)) { |
1634 | case SVt_NULL: | |
79072805 | 1635 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1636 | break; |
1637 | case SVt_NV: | |
1638 | sv_upgrade(sv, SVt_PVNV); | |
1639 | break; | |
ed6116ce | 1640 | case SVt_RV: |
463ee0b2 | 1641 | case SVt_PV: |
79072805 | 1642 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1643 | break; |
a0d0e21e LW |
1644 | |
1645 | case SVt_PVGV: | |
a0d0e21e LW |
1646 | case SVt_PVAV: |
1647 | case SVt_PVHV: | |
1648 | case SVt_PVCV: | |
1649 | case SVt_PVFM: | |
1650 | case SVt_PVIO: | |
411caa50 | 1651 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
53e06cf0 | 1652 | OP_DESC(PL_op)); |
463ee0b2 | 1653 | } |
a0d0e21e | 1654 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1655 | SvIVX(sv) = i; |
463ee0b2 | 1656 | SvTAINT(sv); |
79072805 LW |
1657 | } |
1658 | ||
954c1994 GS |
1659 | /* |
1660 | =for apidoc sv_setiv_mg | |
1661 | ||
1662 | Like C<sv_setiv>, but also handles 'set' magic. | |
1663 | ||
1664 | =cut | |
1665 | */ | |
1666 | ||
79072805 | 1667 | void |
864dbfa3 | 1668 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1669 | { |
1670 | sv_setiv(sv,i); | |
1671 | SvSETMAGIC(sv); | |
1672 | } | |
1673 | ||
954c1994 GS |
1674 | /* |
1675 | =for apidoc sv_setuv | |
1676 | ||
645c22ef DM |
1677 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1678 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1679 | |
1680 | =cut | |
1681 | */ | |
1682 | ||
ef50df4b | 1683 | void |
864dbfa3 | 1684 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1685 | { |
55ada374 NC |
1686 | /* With these two if statements: |
1687 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1688 | |
55ada374 NC |
1689 | without |
1690 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1691 | |
55ada374 NC |
1692 | If you wish to remove them, please benchmark to see what the effect is |
1693 | */ | |
28e5dec8 JH |
1694 | if (u <= (UV)IV_MAX) { |
1695 | sv_setiv(sv, (IV)u); | |
1696 | return; | |
1697 | } | |
25da4f38 IZ |
1698 | sv_setiv(sv, 0); |
1699 | SvIsUV_on(sv); | |
1700 | SvUVX(sv) = u; | |
55497cff | 1701 | } |
1702 | ||
954c1994 GS |
1703 | /* |
1704 | =for apidoc sv_setuv_mg | |
1705 | ||
1706 | Like C<sv_setuv>, but also handles 'set' magic. | |
1707 | ||
1708 | =cut | |
1709 | */ | |
1710 | ||
55497cff | 1711 | void |
864dbfa3 | 1712 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1713 | { |
55ada374 NC |
1714 | /* With these two if statements: |
1715 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1716 | |
55ada374 NC |
1717 | without |
1718 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1719 | |
55ada374 NC |
1720 | If you wish to remove them, please benchmark to see what the effect is |
1721 | */ | |
28e5dec8 JH |
1722 | if (u <= (UV)IV_MAX) { |
1723 | sv_setiv(sv, (IV)u); | |
1724 | } else { | |
1725 | sv_setiv(sv, 0); | |
1726 | SvIsUV_on(sv); | |
1727 | sv_setuv(sv,u); | |
1728 | } | |
ef50df4b GS |
1729 | SvSETMAGIC(sv); |
1730 | } | |
1731 | ||
954c1994 GS |
1732 | /* |
1733 | =for apidoc sv_setnv | |
1734 | ||
645c22ef DM |
1735 | Copies a double into the given SV, upgrading first if necessary. |
1736 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1737 | |
1738 | =cut | |
1739 | */ | |
1740 | ||
ef50df4b | 1741 | void |
65202027 | 1742 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1743 | { |
765f542d | 1744 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
a0d0e21e LW |
1745 | switch (SvTYPE(sv)) { |
1746 | case SVt_NULL: | |
1747 | case SVt_IV: | |
79072805 | 1748 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1749 | break; |
a0d0e21e LW |
1750 | case SVt_RV: |
1751 | case SVt_PV: | |
1752 | case SVt_PVIV: | |
79072805 | 1753 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1754 | break; |
827b7e14 | 1755 | |
a0d0e21e | 1756 | case SVt_PVGV: |
a0d0e21e LW |
1757 | case SVt_PVAV: |
1758 | case SVt_PVHV: | |
1759 | case SVt_PVCV: | |
1760 | case SVt_PVFM: | |
1761 | case SVt_PVIO: | |
411caa50 | 1762 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
53e06cf0 | 1763 | OP_NAME(PL_op)); |
79072805 | 1764 | } |
463ee0b2 | 1765 | SvNVX(sv) = num; |
a0d0e21e | 1766 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1767 | SvTAINT(sv); |
79072805 LW |
1768 | } |
1769 | ||
954c1994 GS |
1770 | /* |
1771 | =for apidoc sv_setnv_mg | |
1772 | ||
1773 | Like C<sv_setnv>, but also handles 'set' magic. | |
1774 | ||
1775 | =cut | |
1776 | */ | |
1777 | ||
ef50df4b | 1778 | void |
65202027 | 1779 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1780 | { |
1781 | sv_setnv(sv,num); | |
1782 | SvSETMAGIC(sv); | |
1783 | } | |
1784 | ||
645c22ef DM |
1785 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1786 | * printable version of the offending string | |
1787 | */ | |
1788 | ||
76e3520e | 1789 | STATIC void |
cea2e8a9 | 1790 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e | 1791 | { |
94463019 JH |
1792 | SV *dsv; |
1793 | char tmpbuf[64]; | |
1794 | char *pv; | |
1795 | ||
1796 | if (DO_UTF8(sv)) { | |
1797 | dsv = sv_2mortal(newSVpv("", 0)); | |
1798 | pv = sv_uni_display(dsv, sv, 10, 0); | |
1799 | } else { | |
1800 | char *d = tmpbuf; | |
1801 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; | |
1802 | /* each *s can expand to 4 chars + "...\0", | |
1803 | i.e. need room for 8 chars */ | |
ecdeb87c | 1804 | |
94463019 JH |
1805 | char *s, *end; |
1806 | for (s = SvPVX(sv), end = s + SvCUR(sv); s < end && d < limit; s++) { | |
1807 | int ch = *s & 0xFF; | |
1808 | if (ch & 128 && !isPRINT_LC(ch)) { | |
1809 | *d++ = 'M'; | |
1810 | *d++ = '-'; | |
1811 | ch &= 127; | |
1812 | } | |
1813 | if (ch == '\n') { | |
1814 | *d++ = '\\'; | |
1815 | *d++ = 'n'; | |
1816 | } | |
1817 | else if (ch == '\r') { | |
1818 | *d++ = '\\'; | |
1819 | *d++ = 'r'; | |
1820 | } | |
1821 | else if (ch == '\f') { | |
1822 | *d++ = '\\'; | |
1823 | *d++ = 'f'; | |
1824 | } | |
1825 | else if (ch == '\\') { | |
1826 | *d++ = '\\'; | |
1827 | *d++ = '\\'; | |
1828 | } | |
1829 | else if (ch == '\0') { | |
1830 | *d++ = '\\'; | |
1831 | *d++ = '0'; | |
1832 | } | |
1833 | else if (isPRINT_LC(ch)) | |
1834 | *d++ = ch; | |
1835 | else { | |
1836 | *d++ = '^'; | |
1837 | *d++ = toCTRL(ch); | |
1838 | } | |
1839 | } | |
1840 | if (s < end) { | |
1841 | *d++ = '.'; | |
1842 | *d++ = '.'; | |
1843 | *d++ = '.'; | |
1844 | } | |
1845 | *d = '\0'; | |
1846 | pv = tmpbuf; | |
a0d0e21e | 1847 | } |
a0d0e21e | 1848 | |
533c011a | 1849 | if (PL_op) |
9014280d | 1850 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 JH |
1851 | "Argument \"%s\" isn't numeric in %s", pv, |
1852 | OP_DESC(PL_op)); | |
a0d0e21e | 1853 | else |
9014280d | 1854 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 | 1855 | "Argument \"%s\" isn't numeric", pv); |
a0d0e21e LW |
1856 | } |
1857 | ||
c2988b20 NC |
1858 | /* |
1859 | =for apidoc looks_like_number | |
1860 | ||
645c22ef DM |
1861 | Test if the content of an SV looks like a number (or is a number). |
1862 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1863 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1864 | |
1865 | =cut | |
1866 | */ | |
1867 | ||
1868 | I32 | |
1869 | Perl_looks_like_number(pTHX_ SV *sv) | |
1870 | { | |
1871 | register char *sbegin; | |
1872 | STRLEN len; | |
1873 | ||
1874 | if (SvPOK(sv)) { | |
1875 | sbegin = SvPVX(sv); | |
1876 | len = SvCUR(sv); | |
1877 | } | |
1878 | else if (SvPOKp(sv)) | |
1879 | sbegin = SvPV(sv, len); | |
1880 | else | |
1881 | return 1; /* Historic. Wrong? */ | |
1882 | return grok_number(sbegin, len, NULL); | |
1883 | } | |
25da4f38 IZ |
1884 | |
1885 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1886 | until proven guilty, assume that things are not that bad... */ | |
1887 | ||
645c22ef DM |
1888 | /* |
1889 | NV_PRESERVES_UV: | |
1890 | ||
1891 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
1892 | an IV (an assumption perl has been based on to date) it becomes necessary |
1893 | to remove the assumption that the NV always carries enough precision to | |
1894 | recreate the IV whenever needed, and that the NV is the canonical form. | |
1895 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 1896 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
1897 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
1898 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
1899 | conversion where precision was lost and IV/UV/NV slots that have a | |
1900 | valid conversion which has lost no precision | |
645c22ef | 1901 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
1902 | would lose precision, the precise conversion (or differently |
1903 | imprecise conversion) is also performed and cached, to prevent | |
1904 | requests for different numeric formats on the same SV causing | |
1905 | lossy conversion chains. (lossless conversion chains are perfectly | |
1906 | acceptable (still)) | |
1907 | ||
1908 | ||
1909 | flags are used: | |
1910 | SvIOKp is true if the IV slot contains a valid value | |
1911 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
1912 | SvNOKp is true if the NV slot contains a valid value | |
1913 | SvNOK is true only if the NV value is accurate | |
1914 | ||
1915 | so | |
645c22ef | 1916 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
1917 | IV(or UV) would lose accuracy over a direct conversion from PV to |
1918 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
1919 | SV as IOK NOKp (ie not NOK). | |
1920 | ||
645c22ef | 1921 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
1922 | NV would lose accuracy over a direct conversion from PV to NV. If it |
1923 | would, cache both conversions, flag similarly. | |
1924 | ||
1925 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
1926 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
1927 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
1928 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 1929 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 1930 | |
645c22ef DM |
1931 | The benefit of this is that operations such as pp_add know that if |
1932 | SvIOK is true for both left and right operands, then integer addition | |
1933 | can be used instead of floating point (for cases where the result won't | |
1934 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
1935 | loss of precision compared with integer addition. |
1936 | ||
1937 | * making IV and NV equal status should make maths accurate on 64 bit | |
1938 | platforms | |
1939 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 1940 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
1941 | looking for SvIOK and checking for overflow will not outweigh the |
1942 | fp to integer speedup) | |
1943 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
1944 | values, as the change from SvIOK to SvIOKp will cause a call into | |
1945 | sv_2iv each time rather than a macro access direct to the IV slot | |
1946 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 1947 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
1948 | |
1949 | #################################################################### | |
645c22ef DM |
1950 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
1951 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
1952 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
1953 | #################################################################### |
1954 | ||
645c22ef | 1955 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
1956 | performance ratio. |
1957 | */ | |
1958 | ||
1959 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
1960 | # define IS_NUMBER_UNDERFLOW_IV 1 |
1961 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
1962 | # define IS_NUMBER_IV_AND_UV 2 | |
1963 | # define IS_NUMBER_OVERFLOW_IV 4 | |
1964 | # define IS_NUMBER_OVERFLOW_UV 5 | |
1965 | ||
1966 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
1967 | |
1968 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
1969 | STATIC int | |
645c22ef | 1970 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 1971 | { |
1779d84d | 1972 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_2iuv_non '%s', IV=0x%"UVxf" NV=%"NVgf" inttype=%"UVXf"\n", SvPVX(sv), SvIVX(sv), SvNVX(sv), (UV)numtype)); |
28e5dec8 JH |
1973 | if (SvNVX(sv) < (NV)IV_MIN) { |
1974 | (void)SvIOKp_on(sv); | |
1975 | (void)SvNOK_on(sv); | |
1976 | SvIVX(sv) = IV_MIN; | |
1977 | return IS_NUMBER_UNDERFLOW_IV; | |
1978 | } | |
1979 | if (SvNVX(sv) > (NV)UV_MAX) { | |
1980 | (void)SvIOKp_on(sv); | |
1981 | (void)SvNOK_on(sv); | |
1982 | SvIsUV_on(sv); | |
1983 | SvUVX(sv) = UV_MAX; | |
1984 | return IS_NUMBER_OVERFLOW_UV; | |
1985 | } | |
c2988b20 NC |
1986 | (void)SvIOKp_on(sv); |
1987 | (void)SvNOK_on(sv); | |
1988 | /* Can't use strtol etc to convert this string. (See truth table in | |
1989 | sv_2iv */ | |
1990 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
1991 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1992 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
1993 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
1994 | } else { | |
1995 | /* Integer is imprecise. NOK, IOKp */ | |
1996 | } | |
1997 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
1998 | } | |
1999 | SvIsUV_on(sv); | |
2000 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2001 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2002 | if (SvUVX(sv) == UV_MAX) { | |
2003 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
2004 | possibly be preserved by NV. Hence, it must be overflow. | |
2005 | NOK, IOKp */ | |
2006 | return IS_NUMBER_OVERFLOW_UV; | |
2007 | } | |
2008 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
2009 | } else { | |
2010 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 2011 | } |
c2988b20 | 2012 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 2013 | } |
645c22ef DM |
2014 | #endif /* !NV_PRESERVES_UV*/ |
2015 | ||
2016 | /* | |
2017 | =for apidoc sv_2iv | |
2018 | ||
2019 | Return the integer value of an SV, doing any necessary string conversion, | |
2020 | magic etc. Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
2021 | ||
2022 | =cut | |
2023 | */ | |
28e5dec8 | 2024 | |
a0d0e21e | 2025 | IV |
864dbfa3 | 2026 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
2027 | { |
2028 | if (!sv) | |
2029 | return 0; | |
8990e307 | 2030 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2031 | mg_get(sv); |
2032 | if (SvIOKp(sv)) | |
2033 | return SvIVX(sv); | |
748a9306 | 2034 | if (SvNOKp(sv)) { |
25da4f38 | 2035 | return I_V(SvNVX(sv)); |
748a9306 | 2036 | } |
36477c24 | 2037 | if (SvPOKp(sv) && SvLEN(sv)) |
2038 | return asIV(sv); | |
3fe9a6f1 | 2039 | if (!SvROK(sv)) { |
d008e5eb | 2040 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2041 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2042 | report_uninit(); |
c6ee37c5 | 2043 | } |
36477c24 | 2044 | return 0; |
3fe9a6f1 | 2045 | } |
463ee0b2 | 2046 | } |
ed6116ce | 2047 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2048 | if (SvROK(sv)) { |
a0d0e21e | 2049 | SV* tmpstr; |
1554e226 | 2050 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2051 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2052 | return SvIV(tmpstr); |
56431972 | 2053 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2054 | } |
765f542d NC |
2055 | if (SvIsCOW(sv)) { |
2056 | sv_force_normal_flags(sv, 0); | |
47deb5e7 | 2057 | } |
0336b60e | 2058 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2059 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2060 | report_uninit(); |
ed6116ce LW |
2061 | return 0; |
2062 | } | |
79072805 | 2063 | } |
25da4f38 IZ |
2064 | if (SvIOKp(sv)) { |
2065 | if (SvIsUV(sv)) { | |
2066 | return (IV)(SvUVX(sv)); | |
2067 | } | |
2068 | else { | |
2069 | return SvIVX(sv); | |
2070 | } | |
463ee0b2 | 2071 | } |
748a9306 | 2072 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2073 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2074 | * without also getting a cached IV/UV from it at the same time | |
2075 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2076 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2077 | |
2078 | if (SvTYPE(sv) == SVt_NV) | |
2079 | sv_upgrade(sv, SVt_PVNV); | |
2080 | ||
28e5dec8 JH |
2081 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2082 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2083 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2084 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2085 | cases go to UV */ | |
2086 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
748a9306 | 2087 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2088 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2089 | #ifndef NV_PRESERVES_UV | |
2090 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2091 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2092 | /* Don't flag it as "accurately an integer" if the number | |
2093 | came from a (by definition imprecise) NV operation, and | |
2094 | we're outside the range of NV integer precision */ | |
2095 | #endif | |
2096 | ) { | |
2097 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2098 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2099 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2100 | PTR2UV(sv), |
2101 | SvNVX(sv), | |
2102 | SvIVX(sv))); | |
2103 | ||
2104 | } else { | |
2105 | /* IV not precise. No need to convert from PV, as NV | |
2106 | conversion would already have cached IV if it detected | |
2107 | that PV->IV would be better than PV->NV->IV | |
2108 | flags already correct - don't set public IOK. */ | |
2109 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2110 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2111 | PTR2UV(sv), |
2112 | SvNVX(sv), | |
2113 | SvIVX(sv))); | |
2114 | } | |
2115 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2116 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2117 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2118 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2119 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2120 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2121 | Hopefully for 2s complement IV_MIN is something like | |
2122 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2123 | } |
25da4f38 | 2124 | else { |
ff68c719 | 2125 | SvUVX(sv) = U_V(SvNVX(sv)); |
28e5dec8 JH |
2126 | if ( |
2127 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2128 | #ifndef NV_PRESERVES_UV | |
2129 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2130 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2131 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2132 | /* Don't flag it as "accurately an integer" if the number | |
2133 | came from a (by definition imprecise) NV operation, and | |
2134 | we're outside the range of NV integer precision */ | |
2135 | #endif | |
2136 | ) | |
2137 | SvIOK_on(sv); | |
25da4f38 IZ |
2138 | SvIsUV_on(sv); |
2139 | ret_iv_max: | |
1c846c1f | 2140 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2141 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2142 | PTR2UV(sv), |
57def98f JH |
2143 | SvUVX(sv), |
2144 | SvUVX(sv))); | |
25da4f38 IZ |
2145 | return (IV)SvUVX(sv); |
2146 | } | |
748a9306 LW |
2147 | } |
2148 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2149 | UV value; |
2150 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2151 | /* We want to avoid a possible problem when we cache an IV which |
2152 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2153 | the same as the direct translation of the initial string |
2154 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2155 | be careful to ensure that the value with the .456 is around if the | |
2156 | NV value is requested in the future). | |
1c846c1f | 2157 | |
25da4f38 IZ |
2158 | This means that if we cache such an IV, we need to cache the |
2159 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2160 | cache the NV if we are sure it's not needed. |
25da4f38 | 2161 | */ |
16b7a9a4 | 2162 | |
c2988b20 NC |
2163 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2164 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2165 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2166 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2167 | if (SvTYPE(sv) < SVt_PVIV) |
2168 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2169 | (void)SvIOK_on(sv); |
c2988b20 NC |
2170 | } else if (SvTYPE(sv) < SVt_PVNV) |
2171 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2172 | |
c2988b20 NC |
2173 | /* If NV preserves UV then we only use the UV value if we know that |
2174 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2175 | then the value returned may have more precision than atof() will | |
2176 | return, even though value isn't perfectly accurate. */ | |
2177 | if ((numtype & (IS_NUMBER_IN_UV | |
2178 | #ifdef NV_PRESERVES_UV | |
2179 | | IS_NUMBER_NOT_INT | |
2180 | #endif | |
2181 | )) == IS_NUMBER_IN_UV) { | |
2182 | /* This won't turn off the public IOK flag if it was set above */ | |
2183 | (void)SvIOKp_on(sv); | |
2184 | ||
2185 | if (!(numtype & IS_NUMBER_NEG)) { | |
2186 | /* positive */; | |
2187 | if (value <= (UV)IV_MAX) { | |
2188 | SvIVX(sv) = (IV)value; | |
2189 | } else { | |
2190 | SvUVX(sv) = value; | |
2191 | SvIsUV_on(sv); | |
2192 | } | |
2193 | } else { | |
2194 | /* 2s complement assumption */ | |
2195 | if (value <= (UV)IV_MIN) { | |
2196 | SvIVX(sv) = -(IV)value; | |
2197 | } else { | |
2198 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2199 | I'm assuming it will be rare. */ |
c2988b20 NC |
2200 | if (SvTYPE(sv) < SVt_PVNV) |
2201 | sv_upgrade(sv, SVt_PVNV); | |
2202 | SvNOK_on(sv); | |
2203 | SvIOK_off(sv); | |
2204 | SvIOKp_on(sv); | |
2205 | SvNVX(sv) = -(NV)value; | |
2206 | SvIVX(sv) = IV_MIN; | |
2207 | } | |
2208 | } | |
2209 | } | |
2210 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2211 | will be in the previous block to set the IV slot, and the next | |
2212 | block to set the NV slot. So no else here. */ | |
2213 | ||
2214 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2215 | != IS_NUMBER_IN_UV) { | |
2216 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
2217 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2218 | |
c2988b20 NC |
2219 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2220 | not_a_number(sv); | |
28e5dec8 | 2221 | |
65202027 | 2222 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2223 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2224 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2225 | #else |
1779d84d | 2226 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"NVgf")\n", |
c2988b20 | 2227 | PTR2UV(sv), SvNVX(sv))); |
65202027 | 2228 | #endif |
28e5dec8 JH |
2229 | |
2230 | ||
2231 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2232 | (void)SvIOKp_on(sv); |
2233 | (void)SvNOK_on(sv); | |
2234 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2235 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2236 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2237 | SvIOK_on(sv); | |
28e5dec8 | 2238 | } else { |
c2988b20 NC |
2239 | /* Integer is imprecise. NOK, IOKp */ |
2240 | } | |
2241 | /* UV will not work better than IV */ | |
2242 | } else { | |
2243 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2244 | SvIsUV_on(sv); | |
2245 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2246 | SvUVX(sv) = UV_MAX; | |
2247 | SvIsUV_on(sv); | |
2248 | } else { | |
2249 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2250 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ | |
2251 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2252 | SvIOK_on(sv); | |
28e5dec8 JH |
2253 | SvIsUV_on(sv); |
2254 | } else { | |
c2988b20 NC |
2255 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2256 | SvIsUV_on(sv); | |
28e5dec8 | 2257 | } |
28e5dec8 | 2258 | } |
c2988b20 NC |
2259 | goto ret_iv_max; |
2260 | } | |
28e5dec8 | 2261 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2262 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2263 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2264 | /* The IV slot will have been set from value returned by | |
2265 | grok_number above. The NV slot has just been set using | |
2266 | Atof. */ | |
560b0c46 | 2267 | SvNOK_on(sv); |
c2988b20 NC |
2268 | assert (SvIOKp(sv)); |
2269 | } else { | |
2270 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2271 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2272 | /* Small enough to preserve all bits. */ | |
2273 | (void)SvIOKp_on(sv); | |
2274 | SvNOK_on(sv); | |
2275 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2276 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2277 | SvIOK_on(sv); | |
2278 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2279 | this NV is in the preserved range, therefore: */ | |
2280 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2281 | < (UV)IV_MAX)) { | |
1779d84d | 2282 | Perl_croak(aTHX_ "sv_2iv assumed (U_V(fabs(SvNVX(sv))) < (UV)IV_MAX) but SvNVX(sv)=%"NVgf" U_V is 0x%"UVxf", IV_MAX is 0x%"UVxf"\n", SvNVX(sv), U_V(SvNVX(sv)), (UV)IV_MAX); |
c2988b20 NC |
2283 | } |
2284 | } else { | |
2285 | /* IN_UV NOT_INT | |
2286 | 0 0 already failed to read UV. | |
2287 | 0 1 already failed to read UV. | |
2288 | 1 0 you won't get here in this case. IV/UV | |
2289 | slot set, public IOK, Atof() unneeded. | |
2290 | 1 1 already read UV. | |
2291 | so there's no point in sv_2iuv_non_preserve() attempting | |
2292 | to use atol, strtol, strtoul etc. */ | |
2293 | if (sv_2iuv_non_preserve (sv, numtype) | |
2294 | >= IS_NUMBER_OVERFLOW_IV) | |
2295 | goto ret_iv_max; | |
2296 | } | |
2297 | } | |
28e5dec8 | 2298 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2299 | } |
28e5dec8 | 2300 | } else { |
599cee73 | 2301 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2302 | report_uninit(); |
25da4f38 IZ |
2303 | if (SvTYPE(sv) < SVt_IV) |
2304 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2305 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2306 | return 0; |
79072805 | 2307 | } |
1d7c1841 GS |
2308 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2309 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2310 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2311 | } |
2312 | ||
645c22ef DM |
2313 | /* |
2314 | =for apidoc sv_2uv | |
2315 | ||
2316 | Return the unsigned integer value of an SV, doing any necessary string | |
2317 | conversion, magic etc. Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> | |
2318 | macros. | |
2319 | ||
2320 | =cut | |
2321 | */ | |
2322 | ||
ff68c719 | 2323 | UV |
864dbfa3 | 2324 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 2325 | { |
2326 | if (!sv) | |
2327 | return 0; | |
2328 | if (SvGMAGICAL(sv)) { | |
2329 | mg_get(sv); | |
2330 | if (SvIOKp(sv)) | |
2331 | return SvUVX(sv); | |
2332 | if (SvNOKp(sv)) | |
2333 | return U_V(SvNVX(sv)); | |
36477c24 | 2334 | if (SvPOKp(sv) && SvLEN(sv)) |
2335 | return asUV(sv); | |
3fe9a6f1 | 2336 | if (!SvROK(sv)) { |
d008e5eb | 2337 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2338 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2339 | report_uninit(); |
c6ee37c5 | 2340 | } |
36477c24 | 2341 | return 0; |
3fe9a6f1 | 2342 | } |
ff68c719 | 2343 | } |
2344 | if (SvTHINKFIRST(sv)) { | |
2345 | if (SvROK(sv)) { | |
ff68c719 | 2346 | SV* tmpstr; |
1554e226 | 2347 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2348 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2349 | return SvUV(tmpstr); |
56431972 | 2350 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2351 | } |
765f542d NC |
2352 | if (SvIsCOW(sv)) { |
2353 | sv_force_normal_flags(sv, 0); | |
8a818333 | 2354 | } |
0336b60e | 2355 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2356 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2357 | report_uninit(); |
ff68c719 | 2358 | return 0; |
2359 | } | |
2360 | } | |
25da4f38 IZ |
2361 | if (SvIOKp(sv)) { |
2362 | if (SvIsUV(sv)) { | |
2363 | return SvUVX(sv); | |
2364 | } | |
2365 | else { | |
2366 | return (UV)SvIVX(sv); | |
2367 | } | |
ff68c719 | 2368 | } |
2369 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2370 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2371 | * without also getting a cached IV/UV from it at the same time | |
2372 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2373 | * IV or UV at same time to avoid this. */ | |
2374 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2375 | ||
25da4f38 IZ |
2376 | if (SvTYPE(sv) == SVt_NV) |
2377 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2378 | |
2379 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2380 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
f7bbb42a | 2381 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2382 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2383 | #ifndef NV_PRESERVES_UV | |
2384 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2385 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2386 | /* Don't flag it as "accurately an integer" if the number | |
2387 | came from a (by definition imprecise) NV operation, and | |
2388 | we're outside the range of NV integer precision */ | |
2389 | #endif | |
2390 | ) { | |
2391 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2392 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2393 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2394 | PTR2UV(sv), |
2395 | SvNVX(sv), | |
2396 | SvIVX(sv))); | |
2397 | ||
2398 | } else { | |
2399 | /* IV not precise. No need to convert from PV, as NV | |
2400 | conversion would already have cached IV if it detected | |
2401 | that PV->IV would be better than PV->NV->IV | |
2402 | flags already correct - don't set public IOK. */ | |
2403 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2404 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2405 | PTR2UV(sv), |
2406 | SvNVX(sv), | |
2407 | SvIVX(sv))); | |
2408 | } | |
2409 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2410 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2411 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2412 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2413 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2414 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2415 | Hopefully for 2s complement IV_MIN is something like | |
2416 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2417 | } |
28e5dec8 JH |
2418 | else { |
2419 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2420 | if ( | |
2421 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2422 | #ifndef NV_PRESERVES_UV | |
2423 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2424 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2425 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2426 | /* Don't flag it as "accurately an integer" if the number | |
2427 | came from a (by definition imprecise) NV operation, and | |
2428 | we're outside the range of NV integer precision */ | |
2429 | #endif | |
2430 | ) | |
2431 | SvIOK_on(sv); | |
2432 | SvIsUV_on(sv); | |
1c846c1f | 2433 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2434 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2435 | PTR2UV(sv), |
28e5dec8 JH |
2436 | SvUVX(sv), |
2437 | SvUVX(sv))); | |
25da4f38 | 2438 | } |
ff68c719 | 2439 | } |
2440 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2441 | UV value; |
2442 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2443 | |
2444 | /* We want to avoid a possible problem when we cache a UV which | |
2445 | may be later translated to an NV, and the resulting NV is not | |
2446 | the translation of the initial data. | |
1c846c1f | 2447 | |
25da4f38 IZ |
2448 | This means that if we cache such a UV, we need to cache the |
2449 | NV as well. Moreover, we trade speed for space, and do not | |
2450 | cache the NV if not needed. | |
2451 | */ | |
16b7a9a4 | 2452 | |
c2988b20 NC |
2453 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2454 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2455 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2456 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2457 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2458 | sv_upgrade(sv, SVt_PVIV); |
2459 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2460 | } else if (SvTYPE(sv) < SVt_PVNV) |
2461 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2462 | |
c2988b20 NC |
2463 | /* If NV preserves UV then we only use the UV value if we know that |
2464 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2465 | then the value returned may have more precision than atof() will | |
2466 | return, even though it isn't accurate. */ | |
2467 | if ((numtype & (IS_NUMBER_IN_UV | |
2468 | #ifdef NV_PRESERVES_UV | |
2469 | | IS_NUMBER_NOT_INT | |
2470 | #endif | |
2471 | )) == IS_NUMBER_IN_UV) { | |
2472 | /* This won't turn off the public IOK flag if it was set above */ | |
2473 | (void)SvIOKp_on(sv); | |
2474 | ||
2475 | if (!(numtype & IS_NUMBER_NEG)) { | |
2476 | /* positive */; | |
2477 | if (value <= (UV)IV_MAX) { | |
2478 | SvIVX(sv) = (IV)value; | |
28e5dec8 JH |
2479 | } else { |
2480 | /* it didn't overflow, and it was positive. */ | |
c2988b20 | 2481 | SvUVX(sv) = value; |
28e5dec8 JH |
2482 | SvIsUV_on(sv); |
2483 | } | |
c2988b20 NC |
2484 | } else { |
2485 | /* 2s complement assumption */ | |
2486 | if (value <= (UV)IV_MIN) { | |
2487 | SvIVX(sv) = -(IV)value; | |
2488 | } else { | |
2489 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2490 | I'm assuming it will be rare. */ |
c2988b20 NC |
2491 | if (SvTYPE(sv) < SVt_PVNV) |
2492 | sv_upgrade(sv, SVt_PVNV); | |
2493 | SvNOK_on(sv); | |
2494 | SvIOK_off(sv); | |
2495 | SvIOKp_on(sv); | |
2496 | SvNVX(sv) = -(NV)value; | |
2497 | SvIVX(sv) = IV_MIN; | |
2498 | } | |
2499 | } | |
2500 | } | |
2501 | ||
2502 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2503 | != IS_NUMBER_IN_UV) { | |
2504 | /* It wasn't an integer, or it overflowed the UV. */ | |
2505 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2506 | |
c2988b20 | 2507 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2508 | not_a_number(sv); |
2509 | ||
2510 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2511 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2512 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2513 | #else |
1779d84d | 2514 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"NVgf")\n", |
c2988b20 | 2515 | PTR2UV(sv), SvNVX(sv))); |
28e5dec8 JH |
2516 | #endif |
2517 | ||
2518 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2519 | (void)SvIOKp_on(sv); |
2520 | (void)SvNOK_on(sv); | |
2521 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2522 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2523 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2524 | SvIOK_on(sv); | |
2525 | } else { | |
2526 | /* Integer is imprecise. NOK, IOKp */ | |
2527 | } | |
2528 | /* UV will not work better than IV */ | |
2529 | } else { | |
2530 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2531 | SvIsUV_on(sv); | |
2532 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2533 | SvUVX(sv) = UV_MAX; | |
2534 | SvIsUV_on(sv); | |
2535 | } else { | |
2536 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2537 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs | |
2538 | NV preservse UV so can do correct comparison. */ | |
2539 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2540 | SvIOK_on(sv); | |
2541 | SvIsUV_on(sv); | |
2542 | } else { | |
2543 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2544 | SvIsUV_on(sv); | |
2545 | } | |
2546 | } | |
2547 | } | |
28e5dec8 | 2548 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2549 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2550 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2551 | /* The UV slot will have been set from value returned by | |
2552 | grok_number above. The NV slot has just been set using | |
2553 | Atof. */ | |
560b0c46 | 2554 | SvNOK_on(sv); |
c2988b20 NC |
2555 | assert (SvIOKp(sv)); |
2556 | } else { | |
2557 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2558 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2559 | /* Small enough to preserve all bits. */ | |
2560 | (void)SvIOKp_on(sv); | |
2561 | SvNOK_on(sv); | |
2562 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2563 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2564 | SvIOK_on(sv); | |
2565 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2566 | this NV is in the preserved range, therefore: */ | |
2567 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2568 | < (UV)IV_MAX)) { | |
1779d84d | 2569 | Perl_croak(aTHX_ "sv_2uv assumed (U_V(fabs(SvNVX(sv))) < (UV)IV_MAX) but SvNVX(sv)=%"NVgf" U_V is 0x%"UVxf", IV_MAX is 0x%"UVxf"\n", SvNVX(sv), U_V(SvNVX(sv)), (UV)IV_MAX); |
c2988b20 NC |
2570 | } |
2571 | } else | |
2572 | sv_2iuv_non_preserve (sv, numtype); | |
2573 | } | |
28e5dec8 | 2574 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2575 | } |
ff68c719 | 2576 | } |
2577 | else { | |
d008e5eb | 2578 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2579 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2580 | report_uninit(); |
c6ee37c5 | 2581 | } |
25da4f38 IZ |
2582 | if (SvTYPE(sv) < SVt_IV) |
2583 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2584 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2585 | return 0; |
2586 | } | |
25da4f38 | 2587 | |
1d7c1841 GS |
2588 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2589 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2590 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2591 | } |
2592 | ||
645c22ef DM |
2593 | /* |
2594 | =for apidoc sv_2nv | |
2595 | ||
2596 | Return the num value of an SV, doing any necessary string or integer | |
2597 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2598 | macros. | |
2599 | ||
2600 | =cut | |
2601 | */ | |
2602 | ||
65202027 | 2603 | NV |
864dbfa3 | 2604 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2605 | { |
2606 | if (!sv) | |
2607 | return 0.0; | |
8990e307 | 2608 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2609 | mg_get(sv); |
2610 | if (SvNOKp(sv)) | |
2611 | return SvNVX(sv); | |
a0d0e21e | 2612 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2613 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
2614 | !grok_number(SvPVX(sv), SvCUR(sv), NULL)) | |
a0d0e21e | 2615 | not_a_number(sv); |
097ee67d | 2616 | return Atof(SvPVX(sv)); |
a0d0e21e | 2617 | } |
25da4f38 | 2618 | if (SvIOKp(sv)) { |
1c846c1f | 2619 | if (SvIsUV(sv)) |
65202027 | 2620 | return (NV)SvUVX(sv); |
25da4f38 | 2621 | else |
65202027 | 2622 | return (NV)SvIVX(sv); |
25da4f38 | 2623 | } |
16d20bd9 | 2624 | if (!SvROK(sv)) { |
d008e5eb | 2625 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2626 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2627 | report_uninit(); |
c6ee37c5 | 2628 | } |
16d20bd9 AD |
2629 | return 0; |
2630 | } | |
463ee0b2 | 2631 | } |
ed6116ce | 2632 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2633 | if (SvROK(sv)) { |
a0d0e21e | 2634 | SV* tmpstr; |
1554e226 | 2635 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2636 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2637 | return SvNV(tmpstr); |
56431972 | 2638 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2639 | } |
765f542d NC |
2640 | if (SvIsCOW(sv)) { |
2641 | sv_force_normal_flags(sv, 0); | |
8a818333 | 2642 | } |
0336b60e | 2643 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2644 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2645 | report_uninit(); |
ed6116ce LW |
2646 | return 0.0; |
2647 | } | |
79072805 LW |
2648 | } |
2649 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2650 | if (SvTYPE(sv) == SVt_IV) |
2651 | sv_upgrade(sv, SVt_PVNV); | |
2652 | else | |
2653 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2654 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2655 | DEBUG_c({ |
f93f4e46 | 2656 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2657 | PerlIO_printf(Perl_debug_log, |
2658 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2659 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2660 | RESTORE_NUMERIC_LOCAL(); |
2661 | }); | |
65202027 | 2662 | #else |
572bbb43 | 2663 | DEBUG_c({ |
f93f4e46 | 2664 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2665 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%"NVgf")\n", |
1d7c1841 | 2666 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2667 | RESTORE_NUMERIC_LOCAL(); |
2668 | }); | |
572bbb43 | 2669 | #endif |
79072805 LW |
2670 | } |
2671 | else if (SvTYPE(sv) < SVt_PVNV) | |
2672 | sv_upgrade(sv, SVt_PVNV); | |
59d8ce62 NC |
2673 | if (SvNOKp(sv)) { |
2674 | return SvNVX(sv); | |
61604483 | 2675 | } |
59d8ce62 | 2676 | if (SvIOKp(sv)) { |
65202027 | 2677 | SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv); |
28e5dec8 JH |
2678 | #ifdef NV_PRESERVES_UV |
2679 | SvNOK_on(sv); | |
2680 | #else | |
2681 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2682 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2683 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2684 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2685 | SvNOK_on(sv); | |
2686 | else | |
2687 | SvNOKp_on(sv); | |
2688 | #endif | |
93a17b20 | 2689 | } |
748a9306 | 2690 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2691 | UV value; |
2692 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2693 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) | |
a0d0e21e | 2694 | not_a_number(sv); |
28e5dec8 | 2695 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2696 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2697 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2698 | /* It's definitely an integer */ |
c2988b20 NC |
2699 | SvNVX(sv) = (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value; |
2700 | } else | |
2701 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 JH |
2702 | SvNOK_on(sv); |
2703 | #else | |
c2988b20 | 2704 | SvNVX(sv) = Atof(SvPVX(sv)); |
28e5dec8 JH |
2705 | /* Only set the public NV OK flag if this NV preserves the value in |
2706 | the PV at least as well as an IV/UV would. | |
2707 | Not sure how to do this 100% reliably. */ | |
2708 | /* if that shift count is out of range then Configure's test is | |
2709 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2710 | UV_BITS */ | |
2711 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2712 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2713 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2714 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2715 | /* Can't use strtol etc to convert this string, so don't try. | |
2716 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2717 | SvNOK_on(sv); | |
2718 | } else { | |
2719 | /* value has been set. It may not be precise. */ | |
2720 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2721 | /* 2s complement assumption for (UV)IV_MIN */ | |
2722 | SvNOK_on(sv); /* Integer is too negative. */ | |
2723 | } else { | |
2724 | SvNOKp_on(sv); | |
2725 | SvIOKp_on(sv); | |
6fa402ec | 2726 | |
c2988b20 NC |
2727 | if (numtype & IS_NUMBER_NEG) { |
2728 | SvIVX(sv) = -(IV)value; | |
2729 | } else if (value <= (UV)IV_MAX) { | |
2730 | SvIVX(sv) = (IV)value; | |
2731 | } else { | |
2732 | SvUVX(sv) = value; | |
2733 | SvIsUV_on(sv); | |
2734 | } | |
2735 | ||
2736 | if (numtype & IS_NUMBER_NOT_INT) { | |
2737 | /* I believe that even if the original PV had decimals, | |
2738 | they are lost beyond the limit of the FP precision. | |
2739 | However, neither is canonical, so both only get p | |
2740 | flags. NWC, 2000/11/25 */ | |
2741 | /* Both already have p flags, so do nothing */ | |
2742 | } else { | |
2743 | NV nv = SvNVX(sv); | |
2744 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2745 | if (SvIVX(sv) == I_V(nv)) { | |
2746 | SvNOK_on(sv); | |
2747 | SvIOK_on(sv); | |
2748 | } else { | |
2749 | SvIOK_on(sv); | |
2750 | /* It had no "." so it must be integer. */ | |
2751 | } | |
2752 | } else { | |
2753 | /* between IV_MAX and NV(UV_MAX). | |
2754 | Could be slightly > UV_MAX */ | |
6fa402ec | 2755 | |
c2988b20 NC |
2756 | if (numtype & IS_NUMBER_NOT_INT) { |
2757 | /* UV and NV both imprecise. */ | |
2758 | } else { | |
2759 | UV nv_as_uv = U_V(nv); | |
2760 | ||
2761 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2762 | SvNOK_on(sv); | |
2763 | SvIOK_on(sv); | |
2764 | } else { | |
2765 | SvIOK_on(sv); | |
2766 | } | |
2767 | } | |
2768 | } | |
2769 | } | |
2770 | } | |
2771 | } | |
28e5dec8 | 2772 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2773 | } |
79072805 | 2774 | else { |
599cee73 | 2775 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2776 | report_uninit(); |
25da4f38 IZ |
2777 | if (SvTYPE(sv) < SVt_NV) |
2778 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2779 | /* XXX Ilya implies that this is a bug in callers that assume this |
2780 | and ideally should be fixed. */ | |
25da4f38 | 2781 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2782 | return 0.0; |
79072805 | 2783 | } |
572bbb43 | 2784 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2785 | DEBUG_c({ |
f93f4e46 | 2786 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2787 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2788 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2789 | RESTORE_NUMERIC_LOCAL(); |
2790 | }); | |
65202027 | 2791 | #else |
572bbb43 | 2792 | DEBUG_c({ |
f93f4e46 | 2793 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2794 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%"NVgf")\n", |
1d7c1841 | 2795 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2796 | RESTORE_NUMERIC_LOCAL(); |
2797 | }); | |
572bbb43 | 2798 | #endif |
463ee0b2 | 2799 | return SvNVX(sv); |
79072805 LW |
2800 | } |
2801 | ||
645c22ef DM |
2802 | /* asIV(): extract an integer from the string value of an SV. |
2803 | * Caller must validate PVX */ | |
2804 | ||
76e3520e | 2805 | STATIC IV |
cea2e8a9 | 2806 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2807 | { |
c2988b20 NC |
2808 | UV value; |
2809 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2810 | ||
2811 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2812 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2813 | /* It's definitely an integer */ |
c2988b20 NC |
2814 | if (numtype & IS_NUMBER_NEG) { |
2815 | if (value < (UV)IV_MIN) | |
2816 | return -(IV)value; | |
2817 | } else { | |
2818 | if (value < (UV)IV_MAX) | |
2819 | return (IV)value; | |
2820 | } | |
2821 | } | |
d008e5eb | 2822 | if (!numtype) { |
d008e5eb GS |
2823 | if (ckWARN(WARN_NUMERIC)) |
2824 | not_a_number(sv); | |
2825 | } | |
c2988b20 | 2826 | return I_V(Atof(SvPVX(sv))); |
36477c24 | 2827 | } |
2828 | ||
645c22ef DM |
2829 | /* asUV(): extract an unsigned integer from the string value of an SV |
2830 | * Caller must validate PVX */ | |
2831 | ||
76e3520e | 2832 | STATIC UV |
cea2e8a9 | 2833 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2834 | { |
c2988b20 NC |
2835 | UV value; |
2836 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
36477c24 | 2837 | |
c2988b20 NC |
2838 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2839 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2840 | /* It's definitely an integer */ |
6fa402ec | 2841 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2842 | return value; |
2843 | } | |
d008e5eb | 2844 | if (!numtype) { |
d008e5eb GS |
2845 | if (ckWARN(WARN_NUMERIC)) |
2846 | not_a_number(sv); | |
2847 | } | |
097ee67d | 2848 | return U_V(Atof(SvPVX(sv))); |
36477c24 | 2849 | } |
2850 | ||
645c22ef DM |
2851 | /* |
2852 | =for apidoc sv_2pv_nolen | |
2853 | ||
2854 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2855 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2856 | =cut | |
2857 | */ | |
2858 | ||
79072805 | 2859 | char * |
864dbfa3 | 2860 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
2861 | { |
2862 | STRLEN n_a; | |
2863 | return sv_2pv(sv, &n_a); | |
2864 | } | |
2865 | ||
645c22ef DM |
2866 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2867 | * UV as a string towards the end of buf, and return pointers to start and | |
2868 | * end of it. | |
2869 | * | |
2870 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2871 | */ | |
2872 | ||
864dbfa3 | 2873 | static char * |
25da4f38 IZ |
2874 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
2875 | { | |
25da4f38 IZ |
2876 | char *ptr = buf + TYPE_CHARS(UV); |
2877 | char *ebuf = ptr; | |
2878 | int sign; | |
25da4f38 IZ |
2879 | |
2880 | if (is_uv) | |
2881 | sign = 0; | |
2882 | else if (iv >= 0) { | |
2883 | uv = iv; | |
2884 | sign = 0; | |
2885 | } else { | |
2886 | uv = -iv; | |
2887 | sign = 1; | |
2888 | } | |
2889 | do { | |
eb160463 | 2890 | *--ptr = '0' + (char)(uv % 10); |
25da4f38 IZ |
2891 | } while (uv /= 10); |
2892 | if (sign) | |
2893 | *--ptr = '-'; | |
2894 | *peob = ebuf; | |
2895 | return ptr; | |
2896 | } | |
2897 | ||
645c22ef DM |
2898 | /* |
2899 | =for apidoc sv_2pv_flags | |
2900 | ||
ff276b08 | 2901 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
2902 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
2903 | if necessary. | |
2904 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
2905 | usually end up here too. | |
2906 | ||
2907 | =cut | |
2908 | */ | |
2909 | ||
8d6d96c1 HS |
2910 | char * |
2911 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
2912 | { | |
79072805 LW |
2913 | register char *s; |
2914 | int olderrno; | |
cb50f42d | 2915 | SV *tsv, *origsv; |
25da4f38 IZ |
2916 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
2917 | char *tmpbuf = tbuf; | |
79072805 | 2918 | |
463ee0b2 LW |
2919 | if (!sv) { |
2920 | *lp = 0; | |
2921 | return ""; | |
2922 | } | |
8990e307 | 2923 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
2924 | if (flags & SV_GMAGIC) |
2925 | mg_get(sv); | |
463ee0b2 LW |
2926 | if (SvPOKp(sv)) { |
2927 | *lp = SvCUR(sv); | |
2928 | return SvPVX(sv); | |
2929 | } | |
cf2093f6 | 2930 | if (SvIOKp(sv)) { |
1c846c1f | 2931 | if (SvIsUV(sv)) |
57def98f | 2932 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 2933 | else |
57def98f | 2934 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 2935 | tsv = Nullsv; |
a0d0e21e | 2936 | goto tokensave; |
463ee0b2 LW |
2937 | } |
2938 | if (SvNOKp(sv)) { | |
2d4389e4 | 2939 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 2940 | tsv = Nullsv; |
a0d0e21e | 2941 | goto tokensave; |
463ee0b2 | 2942 | } |
16d20bd9 | 2943 | if (!SvROK(sv)) { |
d008e5eb | 2944 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2945 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2946 | report_uninit(); |
c6ee37c5 | 2947 | } |
16d20bd9 AD |
2948 | *lp = 0; |
2949 | return ""; | |
2950 | } | |
463ee0b2 | 2951 | } |
ed6116ce LW |
2952 | if (SvTHINKFIRST(sv)) { |
2953 | if (SvROK(sv)) { | |
a0d0e21e | 2954 | SV* tmpstr; |
1554e226 | 2955 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
b4b9a328 | 2956 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) { |
446eaa42 YST |
2957 | char *pv = SvPV(tmpstr, *lp); |
2958 | if (SvUTF8(tmpstr)) | |
2959 | SvUTF8_on(sv); | |
2960 | else | |
2961 | SvUTF8_off(sv); | |
2962 | return pv; | |
2963 | } | |
cb50f42d | 2964 | origsv = sv; |
ed6116ce LW |
2965 | sv = (SV*)SvRV(sv); |
2966 | if (!sv) | |
2967 | s = "NULLREF"; | |
2968 | else { | |
f9277f47 IZ |
2969 | MAGIC *mg; |
2970 | ||
ed6116ce | 2971 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
2972 | case SVt_PVMG: |
2973 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 2974 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
3149a8e4 | 2975 | == (SVs_OBJECT|SVs_RMG)) |
14befaf4 | 2976 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
2cd61cdb | 2977 | regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 2978 | |
2cd61cdb | 2979 | if (!mg->mg_ptr) { |
8782bef2 GB |
2980 | char *fptr = "msix"; |
2981 | char reflags[6]; | |
2982 | char ch; | |
2983 | int left = 0; | |
2984 | int right = 4; | |
ff385a1b | 2985 | char need_newline = 0; |
eb160463 | 2986 | U16 reganch = (U16)((re->reganch & PMf_COMPILETIME) >> 12); |
8782bef2 | 2987 | |
155aba94 | 2988 | while((ch = *fptr++)) { |
8782bef2 GB |
2989 | if(reganch & 1) { |
2990 | reflags[left++] = ch; | |
2991 | } | |
2992 | else { | |
2993 | reflags[right--] = ch; | |
2994 | } | |
2995 | reganch >>= 1; | |
2996 | } | |
2997 | if(left != 4) { | |
2998 | reflags[left] = '-'; | |
2999 | left = 5; | |
3000 | } | |
3001 | ||
3002 | mg->mg_len = re->prelen + 4 + left; | |
ff385a1b JF |
3003 | /* |
3004 | * If /x was used, we have to worry about a regex | |
3005 | * ending with a comment later being embedded | |
3006 | * within another regex. If so, we don't want this | |
3007 | * regex's "commentization" to leak out to the | |
3008 | * right part of the enclosing regex, we must cap | |
3009 | * it with a newline. | |
3010 | * | |
3011 | * So, if /x was used, we scan backwards from the | |
3012 | * end of the regex. If we find a '#' before we | |
3013 | * find a newline, we need to add a newline | |
3014 | * ourself. If we find a '\n' first (or if we | |
3015 | * don't find '#' or '\n'), we don't need to add | |
3016 | * anything. -jfriedl | |
3017 | */ | |
3018 | if (PMf_EXTENDED & re->reganch) | |
3019 | { | |
3020 | char *endptr = re->precomp + re->prelen; | |
3021 | while (endptr >= re->precomp) | |
3022 | { | |
3023 | char c = *(endptr--); | |
3024 | if (c == '\n') | |
3025 | break; /* don't need another */ | |
3026 | if (c == '#') { | |
3027 | /* we end while in a comment, so we | |
3028 | need a newline */ | |
3029 | mg->mg_len++; /* save space for it */ | |
3030 | need_newline = 1; /* note to add it */ | |
ab01544f | 3031 | break; |
ff385a1b JF |
3032 | } |
3033 | } | |
3034 | } | |
3035 | ||
8782bef2 GB |
3036 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); |
3037 | Copy("(?", mg->mg_ptr, 2, char); | |
3038 | Copy(reflags, mg->mg_ptr+2, left, char); | |
3039 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
3040 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
ff385a1b JF |
3041 | if (need_newline) |
3042 | mg->mg_ptr[mg->mg_len - 2] = '\n'; | |
1bd3ad17 IZ |
3043 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
3044 | mg->mg_ptr[mg->mg_len] = 0; | |
3045 | } | |
3280af22 | 3046 | PL_reginterp_cnt += re->program[0].next_off; |
cb50f42d YST |
3047 | |
3048 | if (re->reganch & ROPT_UTF8) | |
3049 | SvUTF8_on(origsv); | |
3050 | else | |
3051 | SvUTF8_off(origsv); | |
1bd3ad17 IZ |
3052 | *lp = mg->mg_len; |
3053 | return mg->mg_ptr; | |
f9277f47 IZ |
3054 | } |
3055 | /* Fall through */ | |
ed6116ce LW |
3056 | case SVt_NULL: |
3057 | case SVt_IV: | |
3058 | case SVt_NV: | |
3059 | case SVt_RV: | |
3060 | case SVt_PV: | |
3061 | case SVt_PVIV: | |
3062 | case SVt_PVNV: | |
81689caa HS |
3063 | case SVt_PVBM: if (SvROK(sv)) |
3064 | s = "REF"; | |
3065 | else | |
3066 | s = "SCALAR"; break; | |
ed6116ce LW |
3067 | case SVt_PVLV: s = "LVALUE"; break; |
3068 | case SVt_PVAV: s = "ARRAY"; break; | |
3069 | case SVt_PVHV: s = "HASH"; break; | |
3070 | case SVt_PVCV: s = "CODE"; break; | |
3071 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 3072 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 3073 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
3074 | default: s = "UNKNOWN"; break; |
3075 | } | |
46fc3d4c | 3076 | tsv = NEWSV(0,0); |
de11ba31 AMS |
3077 | if (SvOBJECT(sv)) |
3078 | Perl_sv_setpvf(aTHX_ tsv, "%s=%s", HvNAME(SvSTASH(sv)), s); | |
ed6116ce | 3079 | else |
46fc3d4c | 3080 | sv_setpv(tsv, s); |
57def98f | 3081 | Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv)); |
a0d0e21e | 3082 | goto tokensaveref; |
463ee0b2 | 3083 | } |
ed6116ce LW |
3084 | *lp = strlen(s); |
3085 | return s; | |
79072805 | 3086 | } |
0336b60e | 3087 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3088 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 3089 | report_uninit(); |
ed6116ce LW |
3090 | *lp = 0; |
3091 | return ""; | |
79072805 | 3092 | } |
79072805 | 3093 | } |
28e5dec8 JH |
3094 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3095 | /* I'm assuming that if both IV and NV are equally valid then | |
3096 | converting the IV is going to be more efficient */ | |
3097 | U32 isIOK = SvIOK(sv); | |
3098 | U32 isUIOK = SvIsUV(sv); | |
3099 | char buf[TYPE_CHARS(UV)]; | |
3100 | char *ebuf, *ptr; | |
3101 | ||
3102 | if (SvTYPE(sv) < SVt_PVIV) | |
3103 | sv_upgrade(sv, SVt_PVIV); | |
3104 | if (isUIOK) | |
3105 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3106 | else | |
3107 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
eb160463 | 3108 | SvGROW(sv, (STRLEN)(ebuf - ptr + 1)); /* inlined from sv_setpvn */ |
28e5dec8 JH |
3109 | Move(ptr,SvPVX(sv),ebuf - ptr,char); |
3110 | SvCUR_set(sv, ebuf - ptr); | |
3111 | s = SvEND(sv); | |
3112 | *s = '\0'; | |
3113 | if (isIOK) | |
3114 | SvIOK_on(sv); | |
3115 | else | |
3116 | SvIOKp_on(sv); | |
3117 | if (isUIOK) | |
3118 | SvIsUV_on(sv); | |
3119 | } | |
3120 | else if (SvNOKp(sv)) { | |
79072805 LW |
3121 | if (SvTYPE(sv) < SVt_PVNV) |
3122 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3123 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
59155cc0 | 3124 | SvGROW(sv, NV_DIG + 20); |
463ee0b2 | 3125 | s = SvPVX(sv); |
79072805 | 3126 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3127 | #ifdef apollo |
463ee0b2 | 3128 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3129 | (void)strcpy(s,"0"); |
3130 | else | |
3131 | #endif /*apollo*/ | |
bbce6d69 | 3132 | { |
2d4389e4 | 3133 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3134 | } |
79072805 | 3135 | errno = olderrno; |
a0d0e21e LW |
3136 | #ifdef FIXNEGATIVEZERO |
3137 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3138 | strcpy(s,"0"); | |
3139 | #endif | |
79072805 LW |
3140 | while (*s) s++; |
3141 | #ifdef hcx | |
3142 | if (s[-1] == '.') | |
46fc3d4c | 3143 | *--s = '\0'; |
79072805 LW |
3144 | #endif |
3145 | } | |
79072805 | 3146 | else { |
0336b60e IZ |
3147 | if (ckWARN(WARN_UNINITIALIZED) |
3148 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
1d7c1841 | 3149 | report_uninit(); |
a0d0e21e | 3150 | *lp = 0; |
25da4f38 IZ |
3151 | if (SvTYPE(sv) < SVt_PV) |
3152 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3153 | sv_upgrade(sv, SVt_PV); | |
a0d0e21e | 3154 | return ""; |
79072805 | 3155 | } |
463ee0b2 LW |
3156 | *lp = s - SvPVX(sv); |
3157 | SvCUR_set(sv, *lp); | |
79072805 | 3158 | SvPOK_on(sv); |
1d7c1841 GS |
3159 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3160 | PTR2UV(sv),SvPVX(sv))); | |
463ee0b2 | 3161 | return SvPVX(sv); |
a0d0e21e LW |
3162 | |
3163 | tokensave: | |
3164 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3165 | /* Sneaky stuff here */ | |
3166 | ||
3167 | tokensaveref: | |
46fc3d4c | 3168 | if (!tsv) |
96827780 | 3169 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3170 | sv_2mortal(tsv); |
3171 | *lp = SvCUR(tsv); | |
3172 | return SvPVX(tsv); | |
a0d0e21e LW |
3173 | } |
3174 | else { | |
3175 | STRLEN len; | |
46fc3d4c | 3176 | char *t; |
3177 | ||
3178 | if (tsv) { | |
3179 | sv_2mortal(tsv); | |
3180 | t = SvPVX(tsv); | |
3181 | len = SvCUR(tsv); | |
3182 | } | |
3183 | else { | |
96827780 MB |
3184 | t = tmpbuf; |
3185 | len = strlen(tmpbuf); | |
46fc3d4c | 3186 | } |
a0d0e21e | 3187 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3188 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3189 | t = "0"; | |
3190 | len = 1; | |
3191 | } | |
a0d0e21e LW |
3192 | #endif |
3193 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 3194 | *lp = len; |
a0d0e21e LW |
3195 | s = SvGROW(sv, len + 1); |
3196 | SvCUR_set(sv, len); | |
46fc3d4c | 3197 | (void)strcpy(s, t); |
6bf554b4 | 3198 | SvPOKp_on(sv); |
a0d0e21e LW |
3199 | return s; |
3200 | } | |
463ee0b2 LW |
3201 | } |
3202 | ||
645c22ef | 3203 | /* |
6050d10e JP |
3204 | =for apidoc sv_copypv |
3205 | ||
3206 | Copies a stringified representation of the source SV into the | |
3207 | destination SV. Automatically performs any necessary mg_get and | |
54f0641b | 3208 | coercion of numeric values into strings. Guaranteed to preserve |
6050d10e | 3209 | UTF-8 flag even from overloaded objects. Similar in nature to |
54f0641b NIS |
3210 | sv_2pv[_flags] but operates directly on an SV instead of just the |
3211 | string. Mostly uses sv_2pv_flags to do its work, except when that | |
6050d10e JP |
3212 | would lose the UTF-8'ness of the PV. |
3213 | ||
3214 | =cut | |
3215 | */ | |
3216 | ||
3217 | void | |
3218 | Perl_sv_copypv(pTHX_ SV *dsv, register SV *ssv) | |
3219 | { | |
446eaa42 YST |
3220 | STRLEN len; |
3221 | char *s; | |
3222 | s = SvPV(ssv,len); | |
cb50f42d | 3223 | sv_setpvn(dsv,s,len); |
446eaa42 | 3224 | if (SvUTF8(ssv)) |
cb50f42d | 3225 | SvUTF8_on(dsv); |
446eaa42 | 3226 | else |
cb50f42d | 3227 | SvUTF8_off(dsv); |
6050d10e JP |
3228 | } |
3229 | ||
3230 | /* | |
645c22ef DM |
3231 | =for apidoc sv_2pvbyte_nolen |
3232 | ||
3233 | Return a pointer to the byte-encoded representation of the SV. | |
3234 | May cause the SV to be downgraded from UTF8 as a side-effect. | |
3235 | ||
3236 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3237 | ||
3238 | =cut | |
3239 | */ | |
3240 | ||
7340a771 GS |
3241 | char * |
3242 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3243 | { | |
560a288e GS |
3244 | STRLEN n_a; |
3245 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
3246 | } |
3247 | ||
645c22ef DM |
3248 | /* |
3249 | =for apidoc sv_2pvbyte | |
3250 | ||
3251 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
3252 | to its length. May cause the SV to be downgraded from UTF8 as a | |
3253 | side-effect. | |
3254 | ||
3255 | Usually accessed via the C<SvPVbyte> macro. | |
3256 | ||
3257 | =cut | |
3258 | */ | |
3259 | ||
7340a771 GS |
3260 | char * |
3261 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3262 | { | |
0875d2fe NIS |
3263 | sv_utf8_downgrade(sv,0); |
3264 | return SvPV(sv,*lp); | |
7340a771 GS |
3265 | } |
3266 | ||
645c22ef DM |
3267 | /* |
3268 | =for apidoc sv_2pvutf8_nolen | |
3269 | ||
3270 | Return a pointer to the UTF8-encoded representation of the SV. | |
3271 | May cause the SV to be upgraded to UTF8 as a side-effect. | |
3272 | ||
3273 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3274 | ||
3275 | =cut | |
3276 | */ | |
3277 | ||
7340a771 GS |
3278 | char * |
3279 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3280 | { | |
560a288e GS |
3281 | STRLEN n_a; |
3282 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
3283 | } |
3284 | ||
645c22ef DM |
3285 | /* |
3286 | =for apidoc sv_2pvutf8 | |
3287 | ||
3288 | Return a pointer to the UTF8-encoded representation of the SV, and set *lp | |
3289 | to its length. May cause the SV to be upgraded to UTF8 as a side-effect. | |
3290 | ||
3291 | Usually accessed via the C<SvPVutf8> macro. | |
3292 | ||
3293 | =cut | |
3294 | */ | |
3295 | ||
7340a771 GS |
3296 | char * |
3297 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3298 | { | |
560a288e | 3299 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3300 | return SvPV(sv,*lp); |
7340a771 | 3301 | } |
1c846c1f | 3302 | |
645c22ef DM |
3303 | /* |
3304 | =for apidoc sv_2bool | |
3305 | ||
3306 | This function is only called on magical items, and is only used by | |
8cf8f3d1 | 3307 | sv_true() or its macro equivalent. |
645c22ef DM |
3308 | |
3309 | =cut | |
3310 | */ | |
3311 | ||
463ee0b2 | 3312 | bool |
864dbfa3 | 3313 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3314 | { |
8990e307 | 3315 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3316 | mg_get(sv); |
3317 | ||
a0d0e21e LW |
3318 | if (!SvOK(sv)) |
3319 | return 0; | |
3320 | if (SvROK(sv)) { | |
a0d0e21e | 3321 | SV* tmpsv; |
1554e226 | 3322 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
9e3013b1 | 3323 | (!SvROK(tmpsv) || (SvRV(tmpsv) != SvRV(sv)))) |
8a31060d | 3324 | return (bool)SvTRUE(tmpsv); |
a0d0e21e LW |
3325 | return SvRV(sv) != 0; |
3326 | } | |
463ee0b2 | 3327 | if (SvPOKp(sv)) { |
11343788 MB |
3328 | register XPV* Xpvtmp; |
3329 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
3330 | (*Xpvtmp->xpv_pv > '0' || | |
3331 | Xpvtmp->xpv_cur > 1 || | |
3332 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3333 | return 1; |
3334 | else | |
3335 | return 0; | |
3336 | } | |
3337 | else { | |
3338 | if (SvIOKp(sv)) | |
3339 | return SvIVX(sv) != 0; | |
3340 | else { | |
3341 | if (SvNOKp(sv)) | |
3342 | return SvNVX(sv) != 0.0; | |
3343 | else | |
3344 | return FALSE; | |
3345 | } | |
3346 | } | |
79072805 LW |
3347 | } |
3348 | ||
c461cf8f JH |
3349 | /* |
3350 | =for apidoc sv_utf8_upgrade | |
3351 | ||
3352 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3353 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3354 | Always sets the SvUTF8 flag to avoid future validity checks even |
3355 | if all the bytes have hibit clear. | |
c461cf8f | 3356 | |
13a6c0e0 JH |
3357 | This is not as a general purpose byte encoding to Unicode interface: |
3358 | use the Encode extension for that. | |
3359 | ||
8d6d96c1 HS |
3360 | =for apidoc sv_utf8_upgrade_flags |
3361 | ||
3362 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3363 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3364 | Always sets the SvUTF8 flag to avoid future validity checks even |
3365 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3366 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3367 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3368 | ||
13a6c0e0 JH |
3369 | This is not as a general purpose byte encoding to Unicode interface: |
3370 | use the Encode extension for that. | |
3371 | ||
8d6d96c1 HS |
3372 | =cut |
3373 | */ | |
3374 | ||
3375 | STRLEN | |
3376 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3377 | { | |
db42d148 | 3378 | U8 *s, *t, *e; |
511c2ff0 | 3379 | int hibit = 0; |
560a288e | 3380 | |
4411f3b6 NIS |
3381 | if (!sv) |
3382 | return 0; | |
3383 | ||
e0e62c2a NIS |
3384 | if (!SvPOK(sv)) { |
3385 | STRLEN len = 0; | |
8d6d96c1 | 3386 | (void) sv_2pv_flags(sv,&len, flags); |
e0e62c2a NIS |
3387 | if (!SvPOK(sv)) |
3388 | return len; | |
3389 | } | |
4411f3b6 NIS |
3390 | |
3391 | if (SvUTF8(sv)) | |
3392 | return SvCUR(sv); | |
560a288e | 3393 | |
765f542d NC |
3394 | if (SvIsCOW(sv)) { |
3395 | sv_force_normal_flags(sv, 0); | |
db42d148 NIS |
3396 | } |
3397 | ||
9f4817db | 3398 | if (PL_encoding) |
799ef3cb | 3399 | sv_recode_to_utf8(sv, PL_encoding); |
9f4817db | 3400 | else { /* Assume Latin-1/EBCDIC */ |
0a378802 JH |
3401 | /* This function could be much more efficient if we |
3402 | * had a FLAG in SVs to signal if there are any hibit | |
3403 | * chars in the PV. Given that there isn't such a flag | |
3404 | * make the loop as fast as possible. */ | |
3405 | s = (U8 *) SvPVX(sv); | |
3406 | e = (U8 *) SvEND(sv); | |
3407 | t = s; | |
3408 | while (t < e) { | |
3409 | U8 ch = *t++; | |
3410 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) | |
3411 | break; | |
3412 | } | |
3413 | if (hibit) { | |
3414 | STRLEN len; | |
ecdeb87c | 3415 | |
0a378802 JH |
3416 | len = SvCUR(sv) + 1; /* Plus the \0 */ |
3417 | SvPVX(sv) = (char*)bytes_to_utf8((U8*)s, &len); | |
3418 | SvCUR(sv) = len - 1; | |
3419 | if (SvLEN(sv) != 0) | |
3420 | Safefree(s); /* No longer using what was there before. */ | |
3421 | SvLEN(sv) = len; /* No longer know the real size. */ | |
3422 | } | |
9f4817db JH |
3423 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ |
3424 | SvUTF8_on(sv); | |
560a288e | 3425 | } |
4411f3b6 | 3426 | return SvCUR(sv); |
560a288e GS |
3427 | } |
3428 | ||
c461cf8f JH |
3429 | /* |
3430 | =for apidoc sv_utf8_downgrade | |
3431 | ||
3432 | Attempt to convert the PV of an SV from UTF8-encoded to byte encoding. | |
3433 | This may not be possible if the PV contains non-byte encoding characters; | |
3434 | if this is the case, either returns false or, if C<fail_ok> is not | |
3435 | true, croaks. | |
3436 | ||
13a6c0e0 JH |
3437 | This is not as a general purpose Unicode to byte encoding interface: |
3438 | use the Encode extension for that. | |
3439 | ||
c461cf8f JH |
3440 | =cut |
3441 | */ | |
3442 | ||
560a288e GS |
3443 | bool |
3444 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3445 | { | |
3446 | if (SvPOK(sv) && SvUTF8(sv)) { | |
fa301091 | 3447 | if (SvCUR(sv)) { |
03cfe0ae | 3448 | U8 *s; |
652088fc | 3449 | STRLEN len; |
fa301091 | 3450 | |
765f542d NC |
3451 | if (SvIsCOW(sv)) { |
3452 | sv_force_normal_flags(sv, 0); | |
3453 | } | |
03cfe0ae NIS |
3454 | s = (U8 *) SvPV(sv, len); |
3455 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3456 | if (fail_ok) |
3457 | return FALSE; | |
3458 | else { | |
3459 | if (PL_op) | |
3460 | Perl_croak(aTHX_ "Wide character in %s", | |
53e06cf0 | 3461 | OP_DESC(PL_op)); |
fa301091 JH |
3462 | else |
3463 | Perl_croak(aTHX_ "Wide character"); | |
3464 | } | |
4b3603a4 | 3465 | } |
fa301091 | 3466 | SvCUR(sv) = len; |
67e989fb | 3467 | } |
560a288e | 3468 | } |
ffebcc3e | 3469 | SvUTF8_off(sv); |
560a288e GS |
3470 | return TRUE; |
3471 | } | |
3472 | ||
c461cf8f JH |
3473 | /* |
3474 | =for apidoc sv_utf8_encode | |
3475 | ||
3476 | Convert the PV of an SV to UTF8-encoded, but then turn off the C<SvUTF8> | |
4411f3b6 NIS |
3477 | flag so that it looks like octets again. Used as a building block |
3478 | for encode_utf8 in Encode.xs | |
c461cf8f JH |
3479 | |
3480 | =cut | |
3481 | */ | |
3482 | ||
560a288e GS |
3483 | void |
3484 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3485 | { | |
4411f3b6 | 3486 | (void) sv_utf8_upgrade(sv); |
560a288e GS |
3487 | SvUTF8_off(sv); |
3488 | } | |
3489 | ||
4411f3b6 NIS |
3490 | /* |
3491 | =for apidoc sv_utf8_decode | |
3492 | ||
3493 | Convert the octets in the PV from UTF-8 to chars. Scan for validity and then | |
645c22ef | 3494 | turn off SvUTF8 if needed so that we see characters. Used as a building block |
4411f3b6 NIS |
3495 | for decode_utf8 in Encode.xs |
3496 | ||
3497 | =cut | |
3498 | */ | |
3499 | ||
560a288e GS |
3500 | bool |
3501 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3502 | { | |
3503 | if (SvPOK(sv)) { | |
63cd0674 NIS |
3504 | U8 *c; |
3505 | U8 *e; | |
9cbac4c7 | 3506 | |
645c22ef DM |
3507 | /* The octets may have got themselves encoded - get them back as |
3508 | * bytes | |
3509 | */ | |
3510 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3511 | return FALSE; |
3512 | ||
3513 | /* it is actually just a matter of turning the utf8 flag on, but | |
3514 | * we want to make sure everything inside is valid utf8 first. | |
3515 | */ | |
63cd0674 NIS |
3516 | c = (U8 *) SvPVX(sv); |
3517 | if (!is_utf8_string(c, SvCUR(sv)+1)) | |
67e989fb | 3518 | return FALSE; |
63cd0674 | 3519 | e = (U8 *) SvEND(sv); |
511c2ff0 | 3520 | while (c < e) { |
c4d5f83a NIS |
3521 | U8 ch = *c++; |
3522 | if (!UTF8_IS_INVARIANT(ch)) { | |
67e989fb JH |
3523 | SvUTF8_on(sv); |
3524 | break; | |
3525 | } | |
560a288e | 3526 | } |
560a288e GS |
3527 | } |
3528 | return TRUE; | |
3529 | } | |
3530 | ||
954c1994 GS |
3531 | /* |
3532 | =for apidoc sv_setsv | |
3533 | ||
645c22ef DM |
3534 | Copies the contents of the source SV C<ssv> into the destination SV |
3535 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3536 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3537 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3538 | content of the destination. | |
3539 | ||
3540 | You probably want to use one of the assortment of wrappers, such as | |
3541 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3542 | C<SvSetMagicSV_nosteal>. | |
3543 | ||
8d6d96c1 HS |
3544 | =for apidoc sv_setsv_flags |
3545 | ||
645c22ef DM |
3546 | Copies the contents of the source SV C<ssv> into the destination SV |
3547 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3548 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3549 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3550 | content of the destination. | |
3551 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
3552 | C<ssv> if appropriate, else not. C<sv_setsv> and C<sv_setsv_nomg> are | |
3553 | implemented in terms of this function. | |
3554 | ||
3555 | You probably want to use one of the assortment of wrappers, such as | |
3556 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3557 | C<SvSetMagicSV_nosteal>. | |
3558 | ||
3559 | This is the primary function for copying scalars, and most other | |
3560 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3561 | |
3562 | =cut | |
3563 | */ | |
3564 | ||
3565 | void | |
3566 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3567 | { | |
8990e307 LW |
3568 | register U32 sflags; |
3569 | register int dtype; | |
3570 | register int stype; | |
463ee0b2 | 3571 | |
79072805 LW |
3572 | if (sstr == dstr) |
3573 | return; | |
765f542d | 3574 | SV_CHECK_THINKFIRST_COW_DROP(dstr); |
79072805 | 3575 | if (!sstr) |
3280af22 | 3576 | sstr = &PL_sv_undef; |
8990e307 LW |
3577 | stype = SvTYPE(sstr); |
3578 | dtype = SvTYPE(dstr); | |
79072805 | 3579 | |
a0d0e21e | 3580 | SvAMAGIC_off(dstr); |
ece467f9 JP |
3581 | if ( SvVOK(dstr) ) |
3582 | { | |
3583 | /* need to nuke the magic */ | |
3584 | mg_free(dstr); | |
3585 | SvRMAGICAL_off(dstr); | |
3586 | } | |
9e7bc3e8 | 3587 | |
463ee0b2 | 3588 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3589 | |
8990e307 | 3590 | switch (stype) { |
79072805 | 3591 | case SVt_NULL: |
aece5585 | 3592 | undef_sstr: |
20408e3c GS |
3593 | if (dtype != SVt_PVGV) { |
3594 | (void)SvOK_off(dstr); | |
3595 | return; | |
3596 | } | |
3597 | break; | |
463ee0b2 | 3598 | case SVt_IV: |
aece5585 GA |
3599 | if (SvIOK(sstr)) { |
3600 | switch (dtype) { | |
3601 | case SVt_NULL: | |
8990e307 | 3602 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3603 | break; |
3604 | case SVt_NV: | |
8990e307 | 3605 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3606 | break; |
3607 | case SVt_RV: | |
3608 | case SVt_PV: | |
a0d0e21e | 3609 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3610 | break; |
3611 | } | |
3612 | (void)SvIOK_only(dstr); | |
3613 | SvIVX(dstr) = SvIVX(sstr); | |
25da4f38 IZ |
3614 | if (SvIsUV(sstr)) |
3615 | SvIsUV_on(dstr); | |
27c9684d AP |
3616 | if (SvTAINTED(sstr)) |
3617 | SvTAINT(dstr); | |
aece5585 | 3618 | return; |
8990e307 | 3619 | } |
aece5585 GA |
3620 | goto undef_sstr; |
3621 | ||
463ee0b2 | 3622 | case SVt_NV: |
aece5585 GA |
3623 | if (SvNOK(sstr)) { |
3624 | switch (dtype) { | |
3625 | case SVt_NULL: | |
3626 | case SVt_IV: | |
8990e307 | 3627 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3628 | break; |
3629 | case SVt_RV: | |
3630 | case SVt_PV: | |
3631 | case SVt_PVIV: | |
a0d0e21e | 3632 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3633 | break; |
3634 | } | |
3635 | SvNVX(dstr) = SvNVX(sstr); | |
3636 | (void)SvNOK_only(dstr); | |
27c9684d AP |
3637 | if (SvTAINTED(sstr)) |
3638 | SvTAINT(dstr); | |
aece5585 | 3639 | return; |
8990e307 | 3640 | } |
aece5585 GA |
3641 | goto undef_sstr; |
3642 | ||
ed6116ce | 3643 | case SVt_RV: |
8990e307 | 3644 | if (dtype < SVt_RV) |
ed6116ce | 3645 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3646 | else if (dtype == SVt_PVGV && |
3647 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { | |
3648 | sstr = SvRV(sstr); | |
a5f75d66 | 3649 | if (sstr == dstr) { |
1d7c1841 GS |
3650 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3651 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3652 | { | |
a5f75d66 | 3653 | GvIMPORTED_on(dstr); |
1d7c1841 | 3654 | } |
a5f75d66 AD |
3655 | GvMULTI_on(dstr); |
3656 | return; | |
3657 | } | |
c07a80fd | 3658 | goto glob_assign; |
3659 | } | |
ed6116ce | 3660 | break; |
463ee0b2 | 3661 | case SVt_PV: |
fc36a67e | 3662 | case SVt_PVFM: |
8990e307 | 3663 | if (dtype < SVt_PV) |
463ee0b2 | 3664 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3665 | break; |
3666 | case SVt_PVIV: | |
8990e307 | 3667 | if (dtype < SVt_PVIV) |
463ee0b2 | 3668 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3669 | break; |
3670 | case SVt_PVNV: | |
8990e307 | 3671 | if (dtype < SVt_PVNV) |
463ee0b2 | 3672 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3673 | break; |
4633a7c4 LW |
3674 | case SVt_PVAV: |
3675 | case SVt_PVHV: | |
3676 | case SVt_PVCV: | |
4633a7c4 | 3677 | case SVt_PVIO: |
533c011a | 3678 | if (PL_op) |
cea2e8a9 | 3679 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
53e06cf0 | 3680 | OP_NAME(PL_op)); |
4633a7c4 | 3681 | else |
cea2e8a9 | 3682 | Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); |
4633a7c4 LW |
3683 | break; |
3684 | ||
79072805 | 3685 | case SVt_PVGV: |
8990e307 | 3686 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3687 | glob_assign: |
a5f75d66 | 3688 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
3689 | char *name = GvNAME(sstr); |
3690 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 3691 | sv_upgrade(dstr, SVt_PVGV); |
14befaf4 | 3692 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 3693 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
3694 | GvNAME(dstr) = savepvn(name, len); |
3695 | GvNAMELEN(dstr) = len; | |
3696 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3697 | } | |
7bac28a0 | 3698 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3699 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3700 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3701 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3702 | GvNAME(dstr)); |
5bd07a3d | 3703 | |
7fb37951 AMS |
3704 | #ifdef GV_UNIQUE_CHECK |
3705 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3706 | Perl_croak(aTHX_ PL_no_modify); |
3707 | } | |
3708 | #endif | |
3709 | ||
a0d0e21e | 3710 | (void)SvOK_off(dstr); |
a5f75d66 | 3711 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3712 | gp_free((GV*)dstr); |
79072805 | 3713 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3714 | if (SvTAINTED(sstr)) |
3715 | SvTAINT(dstr); | |
1d7c1841 GS |
3716 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3717 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3718 | { | |
a5f75d66 | 3719 | GvIMPORTED_on(dstr); |
1d7c1841 | 3720 | } |
a5f75d66 | 3721 | GvMULTI_on(dstr); |
79072805 LW |
3722 | return; |
3723 | } | |
3724 | /* FALL THROUGH */ | |
3725 | ||
3726 | default: | |
8d6d96c1 | 3727 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab | 3728 | mg_get(sstr); |
eb160463 | 3729 | if ((int)SvTYPE(sstr) != stype) { |
973f89ab CS |
3730 | stype = SvTYPE(sstr); |
3731 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3732 | goto glob_assign; | |
3733 | } | |
3734 | } | |
ded42b9f | 3735 | if (stype == SVt_PVLV) |
6fc92669 | 3736 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3737 | else |
eb160463 | 3738 | (void)SvUPGRADE(dstr, (U32)stype); |
79072805 LW |
3739 | } |
3740 | ||
8990e307 LW |
3741 | sflags = SvFLAGS(sstr); |
3742 | ||
3743 | if (sflags & SVf_ROK) { | |
3744 | if (dtype >= SVt_PV) { | |
3745 | if (dtype == SVt_PVGV) { | |
3746 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3747 | SV *dref = 0; | |
a5f75d66 | 3748 | int intro = GvINTRO(dstr); |
a0d0e21e | 3749 | |
7fb37951 AMS |
3750 | #ifdef GV_UNIQUE_CHECK |
3751 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3752 | Perl_croak(aTHX_ PL_no_modify); |
3753 | } | |
3754 | #endif | |
3755 | ||
a0d0e21e | 3756 | if (intro) { |
a5f75d66 | 3757 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3758 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3759 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3760 | } |
a5f75d66 | 3761 | GvMULTI_on(dstr); |
8990e307 LW |
3762 | switch (SvTYPE(sref)) { |
3763 | case SVt_PVAV: | |
a0d0e21e | 3764 | if (intro) |
890ed176 | 3765 | SAVEGENERICSV(GvAV(dstr)); |
a0d0e21e LW |
3766 | else |
3767 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3768 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3769 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3770 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3771 | { | |
a5f75d66 | 3772 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3773 | } |
8990e307 LW |
3774 | break; |
3775 | case SVt_PVHV: | |
a0d0e21e | 3776 | if (intro) |
890ed176 | 3777 | SAVEGENERICSV(GvHV(dstr)); |
a0d0e21e LW |
3778 | else |
3779 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3780 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3781 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3782 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3783 | { | |
a5f75d66 | 3784 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3785 | } |
8990e307 LW |
3786 | break; |
3787 | case SVt_PVCV: | |
8ebc5c01 | 3788 | if (intro) { |
3789 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3790 | SvREFCNT_dec(GvCV(dstr)); | |
3791 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3792 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3793 | PL_sub_generation++; |
8ebc5c01 | 3794 | } |
890ed176 | 3795 | SAVEGENERICSV(GvCV(dstr)); |
8ebc5c01 | 3796 | } |
68dc0745 | 3797 | else |
3798 | dref = (SV*)GvCV(dstr); | |
3799 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3800 | CV* cv = GvCV(dstr); |
4633a7c4 | 3801 | if (cv) { |
68dc0745 | 3802 | if (!GvCVGEN((GV*)dstr) && |
3803 | (CvROOT(cv) || CvXSUB(cv))) | |
3804 | { | |
7bac28a0 | 3805 | /* ahem, death to those who redefine |
3806 | * active sort subs */ | |
3280af22 NIS |
3807 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
3808 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 3809 | Perl_croak(aTHX_ |
7bac28a0 | 3810 | "Can't redefine active sort subroutine %s", |
3811 | GvENAME((GV*)dstr)); | |
beab0874 JT |
3812 | /* Redefining a sub - warning is mandatory if |
3813 | it was a const and its value changed. */ | |
3814 | if (ckWARN(WARN_REDEFINE) | |
3815 | || (CvCONST(cv) | |
3816 | && (!CvCONST((CV*)sref) | |
3817 | || sv_cmp(cv_const_sv(cv), | |
3818 | cv_const_sv((CV*)sref))))) | |
3819 | { | |
9014280d | 3820 | Perl_warner(aTHX_ packWARN(WARN_REDEFINE), |
beab0874 | 3821 | CvCONST(cv) |
910764e6 RGS |
3822 | ? "Constant subroutine %s::%s redefined" |
3823 | : "Subroutine %s::%s redefined", | |
3824 | HvNAME(GvSTASH((GV*)dstr)), | |
beab0874 JT |
3825 | GvENAME((GV*)dstr)); |
3826 | } | |
9607fc9c | 3827 | } |
fb24441d RGS |
3828 | if (!intro) |
3829 | cv_ckproto(cv, (GV*)dstr, | |
3830 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 3831 | } |
a5f75d66 | 3832 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 3833 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 3834 | GvASSUMECV_on(dstr); |
3280af22 | 3835 | PL_sub_generation++; |
a5f75d66 | 3836 | } |
39bac7f7 | 3837 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
3838 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3839 | { | |
a5f75d66 | 3840 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 3841 | } |
8990e307 | 3842 | break; |
91bba347 LW |
3843 | case SVt_PVIO: |
3844 | if (intro) | |
890ed176 | 3845 | SAVEGENERICSV(GvIOp(dstr)); |
91bba347 LW |
3846 | else |
3847 | dref = (SV*)GvIOp(dstr); | |
3848 | GvIOp(dstr) = (IO*)sref; | |
3849 | break; | |
f4d13ee9 JH |
3850 | case SVt_PVFM: |
3851 | if (intro) | |
890ed176 | 3852 | SAVEGENERICSV(GvFORM(dstr)); |
f4d13ee9 JH |
3853 | else |
3854 | dref = (SV*)GvFORM(dstr); | |
3855 | GvFORM(dstr) = (CV*)sref; | |
3856 | break; | |
8990e307 | 3857 | default: |
a0d0e21e | 3858 | if (intro) |
890ed176 | 3859 | SAVEGENERICSV(GvSV(dstr)); |
a0d0e21e LW |
3860 | else |
3861 | dref = (SV*)GvSV(dstr); | |
8990e307 | 3862 | GvSV(dstr) = sref; |
39bac7f7 | 3863 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
3864 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3865 | { | |
a5f75d66 | 3866 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 3867 | } |
8990e307 LW |
3868 | break; |
3869 | } | |
3870 | if (dref) | |
3871 | SvREFCNT_dec(dref); | |
27c9684d AP |
3872 | if (SvTAINTED(sstr)) |
3873 | SvTAINT(dstr); | |
8990e307 LW |
3874 | return; |
3875 | } | |
a0d0e21e | 3876 | if (SvPVX(dstr)) { |
760ac839 | 3877 | (void)SvOOK_off(dstr); /* backoff */ |
50483b2c JD |
3878 | if (SvLEN(dstr)) |
3879 | Safefree(SvPVX(dstr)); | |
a0d0e21e LW |
3880 | SvLEN(dstr)=SvCUR(dstr)=0; |
3881 | } | |
8990e307 | 3882 | } |
a0d0e21e | 3883 | (void)SvOK_off(dstr); |
8990e307 | 3884 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 3885 | SvROK_on(dstr); |
8990e307 | 3886 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3887 | SvNOKp_on(dstr); |
3888 | /* Only set the public OK flag if the source has public OK. */ | |
3889 | if (sflags & SVf_NOK) | |
3890 | SvFLAGS(dstr) |= SVf_NOK; | |
ed6116ce LW |
3891 | SvNVX(dstr) = SvNVX(sstr); |
3892 | } | |
8990e307 | 3893 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3894 | (void)SvIOKp_on(dstr); |
3895 | if (sflags & SVf_IOK) | |
3896 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3897 | if (sflags & SVf_IVisUV) |
25da4f38 | 3898 | SvIsUV_on(dstr); |
3332b3c1 | 3899 | SvIVX(dstr) = SvIVX(sstr); |
ed6116ce | 3900 | } |
a0d0e21e LW |
3901 | if (SvAMAGIC(sstr)) { |
3902 | SvAMAGIC_on(dstr); | |
3903 | } | |
ed6116ce | 3904 | } |
8990e307 | 3905 | else if (sflags & SVp_POK) { |
765f542d | 3906 | bool isSwipe = 0; |
79072805 LW |
3907 | |
3908 | /* | |
3909 | * Check to see if we can just swipe the string. If so, it's a | |
3910 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
3911 | * It might even be a win on short strings if SvPVX(dstr) |
3912 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
3913 | */ |
3914 | ||
765f542d NC |
3915 | if ( |
3916 | #ifdef PERL_COPY_ON_WRITE | |
3917 | (sflags & (SVf_FAKE | SVf_READONLY)) != (SVf_FAKE | SVf_READONLY) | |
3918 | && | |
3919 | #endif | |
3920 | !(isSwipe = | |
3921 | (sflags & SVs_TEMP) && /* slated for free anyway? */ | |
3922 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ | |
3923 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ | |
3924 | SvLEN(sstr) && /* and really is a string */ | |
645c22ef | 3925 | /* and won't be needed again, potentially */ |
765f542d NC |
3926 | !(PL_op && PL_op->op_type == OP_AASSIGN)) |
3927 | #ifdef PERL_COPY_ON_WRITE | |
3928 | && !((sflags & CAN_COW_MASK) == CAN_COW_FLAGS | |
3929 | && SvTYPE(sstr) >= SVt_PVIV) | |
3930 | #endif | |
3931 | ) { | |
3932 | /* Failed the swipe test, and it's not a shared hash key either. | |
3933 | Have to copy the string. */ | |
3934 | STRLEN len = SvCUR(sstr); | |
3935 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ | |
3936 | Move(SvPVX(sstr),SvPVX(dstr),len,char); | |
3937 | SvCUR_set(dstr, len); | |
3938 | *SvEND(dstr) = '\0'; | |
3939 | (void)SvPOK_only(dstr); | |
3940 | } else { | |
3941 | /* If PERL_COPY_ON_WRITE is not defined, then isSwipe will always | |
3942 | be true in here. */ | |
3943 | #ifdef PERL_COPY_ON_WRITE | |
3944 | /* Either it's a shared hash key, or it's suitable for | |
3945 | copy-on-write or we can swipe the string. */ | |
46187eeb NC |
3946 | if (DEBUG_C_TEST) { |
3947 | PerlIO_printf(Perl_debug_log, | |
3948 | "Copy on write: sstr --> dstr\n"); | |
e419cbc5 NC |
3949 | sv_dump(sstr); |
3950 | sv_dump(dstr); | |
46187eeb | 3951 | } |
765f542d NC |
3952 | if (!isSwipe) { |
3953 | /* I believe I should acquire a global SV mutex if | |
3954 | it's a COW sv (not a shared hash key) to stop | |
3955 | it going un copy-on-write. | |
3956 | If the source SV has gone un copy on write between up there | |
3957 | and down here, then (assert() that) it is of the correct | |
3958 | form to make it copy on write again */ | |
3959 | if ((sflags & (SVf_FAKE | SVf_READONLY)) | |
3960 | != (SVf_FAKE | SVf_READONLY)) { | |
3961 | SvREADONLY_on(sstr); | |
3962 | SvFAKE_on(sstr); | |
3963 | /* Make the source SV into a loop of 1. | |
3964 | (about to become 2) */ | |
a29f6d03 | 3965 | SV_COW_NEXT_SV_SET(sstr, sstr); |
765f542d NC |
3966 | } |
3967 | } | |
3968 | #endif | |
3969 | /* Initial code is common. */ | |
adbc6bb1 | 3970 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
3971 | if (SvOOK(dstr)) { |
3972 | SvFLAGS(dstr) &= ~SVf_OOK; | |
3973 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
3974 | } | |
50483b2c | 3975 | else if (SvLEN(dstr)) |
a5f75d66 | 3976 | Safefree(SvPVX(dstr)); |
79072805 | 3977 | } |
a5f75d66 | 3978 | (void)SvPOK_only(dstr); |
765f542d NC |
3979 | |
3980 | #ifdef PERL_COPY_ON_WRITE | |
3981 | if (!isSwipe) { | |
3982 | /* making another shared SV. */ | |
3983 | STRLEN cur = SvCUR(sstr); | |
3984 | STRLEN len = SvLEN(sstr); | |
3985 | if (len) { | |
3986 | /* SvIsCOW_normal */ | |
3987 | /* splice us in between source and next-after-source. */ | |
a29f6d03 NC |
3988 | SV_COW_NEXT_SV_SET(dstr, SV_COW_NEXT_SV(sstr)); |
3989 | SV_COW_NEXT_SV_SET(sstr, dstr); | |
765f542d NC |
3990 | SvPV_set(dstr, SvPVX(sstr)); |
3991 | } else { | |
3992 | /* SvIsCOW_shared_hash */ | |
3993 | UV hash = SvUVX(sstr); | |
46187eeb NC |
3994 | DEBUG_C(PerlIO_printf(Perl_debug_log, |
3995 | "Copy on write: Sharing hash\n")); | |
765f542d NC |
3996 | SvPV_set(dstr, |
3997 | sharepvn(SvPVX(sstr), | |
3998 | (sflags & SVf_UTF8?-cur:cur), hash)); | |
3999 | SvUVX(dstr) = hash; | |
4000 | } | |
4001 | SvLEN(dstr) = len; | |
4002 | SvCUR(dstr) = cur; | |
4003 | SvREADONLY_on(dstr); | |
4004 | SvFAKE_on(dstr); | |
4005 | /* Relesase a global SV mutex. */ | |
4006 | } | |
4007 | else | |
4008 | #endif | |
4009 | { /* Passes the swipe test. */ | |
4010 | SvPV_set(dstr, SvPVX(sstr)); | |
4011 | SvLEN_set(dstr, SvLEN(sstr)); | |
4012 | SvCUR_set(dstr, SvCUR(sstr)); | |
4013 | ||
4014 | SvTEMP_off(dstr); | |
4015 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ | |
4016 | SvPV_set(sstr, Nullch); | |
4017 | SvLEN_set(sstr, 0); | |
4018 | SvCUR_set(sstr, 0); | |
4019 | SvTEMP_off(sstr); | |
4020 | } | |
4021 | } | |
9aa983d2 | 4022 | if (sflags & SVf_UTF8) |
a7cb1f99 | 4023 | SvUTF8_on(dstr); |
79072805 | 4024 | /*SUPPRESS 560*/ |
8990e307 | 4025 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
4026 | SvNOKp_on(dstr); |
4027 | if (sflags & SVf_NOK) | |
4028 | SvFLAGS(dstr) |= SVf_NOK; | |
463ee0b2 | 4029 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 4030 | } |
8990e307 | 4031 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
4032 | (void)SvIOKp_on(dstr); |
4033 | if (sflags & SVf_IOK) | |
4034 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 4035 | if (sflags & SVf_IVisUV) |
25da4f38 | 4036 | SvIsUV_on(dstr); |
463ee0b2 | 4037 | SvIVX(dstr) = SvIVX(sstr); |
79072805 | 4038 | } |
92f0c265 | 4039 | if (SvVOK(sstr)) { |
ece467f9 JP |
4040 | MAGIC *smg = mg_find(sstr,PERL_MAGIC_vstring); |
4041 | sv_magic(dstr, NULL, PERL_MAGIC_vstring, | |
4042 | smg->mg_ptr, smg->mg_len); | |
439cb1c4 | 4043 | SvRMAGICAL_on(dstr); |
92f0c265 | 4044 | } |
79072805 | 4045 | } |
8990e307 | 4046 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
4047 | if (sflags & SVf_IOK) |
4048 | (void)SvIOK_only(dstr); | |
4049 | else { | |
9cbac4c7 DM |
4050 | (void)SvOK_off(dstr); |
4051 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
4052 | } |
4053 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 4054 | if (sflags & SVf_IVisUV) |
25da4f38 | 4055 | SvIsUV_on(dstr); |
3332b3c1 JH |
4056 | SvIVX(dstr) = SvIVX(sstr); |
4057 | if (sflags & SVp_NOK) { | |
4058 | if (sflags & SVf_NOK) | |
4059 | (void)SvNOK_on(dstr); | |
4060 | else | |
4061 | (void)SvNOKp_on(dstr); | |
4062 | SvNVX(dstr) = SvNVX(sstr); | |
4063 | } | |
4064 | } | |
4065 | else if (sflags & SVp_NOK) { | |
4066 | if (sflags & SVf_NOK) | |
4067 | (void)SvNOK_only(dstr); | |
4068 | else { | |
9cbac4c7 | 4069 | (void)SvOK_off(dstr); |
3332b3c1 JH |
4070 | SvNOKp_on(dstr); |
4071 | } | |
4072 | SvNVX(dstr) = SvNVX(sstr); | |
79072805 LW |
4073 | } |
4074 | else { | |
20408e3c | 4075 | if (dtype == SVt_PVGV) { |
e476b1b5 | 4076 | if (ckWARN(WARN_MISC)) |
9014280d | 4077 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Undefined value assigned to typeglob"); |
20408e3c GS |
4078 | } |
4079 | else | |
4080 | (void)SvOK_off(dstr); | |
a0d0e21e | 4081 | } |
27c9684d AP |
4082 | if (SvTAINTED(sstr)) |
4083 | SvTAINT(dstr); | |
79072805 LW |
4084 | } |
4085 | ||
954c1994 GS |
4086 | /* |
4087 | =for apidoc sv_setsv_mg | |
4088 | ||
4089 | Like C<sv_setsv>, but also handles 'set' magic. | |
4090 | ||
4091 | =cut | |
4092 | */ | |
4093 | ||
79072805 | 4094 | void |
864dbfa3 | 4095 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
4096 | { |
4097 | sv_setsv(dstr,sstr); | |
4098 | SvSETMAGIC(dstr); | |
4099 | } | |
4100 | ||
954c1994 GS |
4101 | /* |
4102 | =for apidoc sv_setpvn | |
4103 | ||
4104 | Copies a string into an SV. The C<len> parameter indicates the number of | |
4105 | bytes to be copied. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
4106 | ||
4107 | =cut | |
4108 | */ | |
4109 | ||
ef50df4b | 4110 | void |
864dbfa3 | 4111 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 4112 | { |
c6f8c383 | 4113 | register char *dptr; |
22c522df | 4114 | |
765f542d | 4115 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 | 4116 | if (!ptr) { |
a0d0e21e | 4117 | (void)SvOK_off(sv); |
463ee0b2 LW |
4118 | return; |
4119 | } | |
22c522df JH |
4120 | else { |
4121 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
4122 | IV iv = len; | |
9c5ffd7c JH |
4123 | if (iv < 0) |
4124 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 4125 | } |
6fc92669 | 4126 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4127 | |
79072805 | 4128 | SvGROW(sv, len + 1); |
c6f8c383 GA |
4129 | dptr = SvPVX(sv); |
4130 | Move(ptr,dptr,len,char); | |
4131 | dptr[len] = '\0'; | |
79072805 | 4132 | SvCUR_set(sv, len); |
1aa99e6b | 4133 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4134 | SvTAINT(sv); |
79072805 LW |
4135 | } |
4136 | ||
954c1994 GS |
4137 | /* |
4138 | =for apidoc sv_setpvn_mg | |
4139 | ||
4140 | Like C<sv_setpvn>, but also handles 'set' magic. | |
4141 | ||
4142 | =cut | |
4143 | */ | |
4144 | ||
79072805 | 4145 | void |
864dbfa3 | 4146 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4147 | { |
4148 | sv_setpvn(sv,ptr,len); | |
4149 | SvSETMAGIC(sv); | |
4150 | } | |
4151 | ||
954c1994 GS |
4152 | /* |
4153 | =for apidoc sv_setpv | |
4154 | ||
4155 | Copies a string into an SV. The string must be null-terminated. Does not | |
4156 | handle 'set' magic. See C<sv_setpv_mg>. | |
4157 | ||
4158 | =cut | |
4159 | */ | |
4160 | ||
ef50df4b | 4161 | void |
864dbfa3 | 4162 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4163 | { |
4164 | register STRLEN len; | |
4165 | ||
765f542d | 4166 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 | 4167 | if (!ptr) { |
a0d0e21e | 4168 | (void)SvOK_off(sv); |
463ee0b2 LW |
4169 | return; |
4170 | } | |
79072805 | 4171 | len = strlen(ptr); |
6fc92669 | 4172 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4173 | |
79072805 | 4174 | SvGROW(sv, len + 1); |
463ee0b2 | 4175 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4176 | SvCUR_set(sv, len); |
1aa99e6b | 4177 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4178 | SvTAINT(sv); |
4179 | } | |
4180 | ||
954c1994 GS |
4181 | /* |
4182 | =for apidoc sv_setpv_mg | |
4183 | ||
4184 | Like C<sv_setpv>, but also handles 'set' magic. | |
4185 | ||
4186 | =cut | |
4187 | */ | |
4188 | ||
463ee0b2 | 4189 | void |
864dbfa3 | 4190 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4191 | { |
4192 | sv_setpv(sv,ptr); | |
4193 | SvSETMAGIC(sv); | |
4194 | } | |
4195 | ||
954c1994 GS |
4196 | /* |
4197 | =for apidoc sv_usepvn | |
4198 | ||
4199 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4200 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4201 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4202 | string length, C<len>, must be supplied. This function will realloc the | |
4203 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4204 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4205 | See C<sv_usepvn_mg>. | |
4206 | ||
4207 | =cut | |
4208 | */ | |
4209 | ||
ef50df4b | 4210 | void |
864dbfa3 | 4211 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4212 | { |
765f542d | 4213 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
c6f8c383 | 4214 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4215 | if (!ptr) { |
a0d0e21e | 4216 | (void)SvOK_off(sv); |
463ee0b2 LW |
4217 | return; |
4218 | } | |
a0ed51b3 | 4219 | (void)SvOOK_off(sv); |
50483b2c | 4220 | if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 LW |
4221 | Safefree(SvPVX(sv)); |
4222 | Renew(ptr, len+1, char); | |
4223 | SvPVX(sv) = ptr; | |
4224 | SvCUR_set(sv, len); | |
4225 | SvLEN_set(sv, len+1); | |
4226 | *SvEND(sv) = '\0'; | |
1aa99e6b | 4227 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4228 | SvTAINT(sv); |
79072805 LW |
4229 | } |
4230 | ||
954c1994 GS |
4231 | /* |
4232 | =for apidoc sv_usepvn_mg | |
4233 | ||
4234 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4235 | ||
4236 | =cut | |
4237 | */ | |
4238 | ||
ef50df4b | 4239 | void |
864dbfa3 | 4240 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4241 | { |
51c1089b | 4242 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4243 | SvSETMAGIC(sv); |
4244 | } | |
4245 | ||
765f542d NC |
4246 | #ifdef PERL_COPY_ON_WRITE |
4247 | /* Need to do this *after* making the SV normal, as we need the buffer | |
4248 | pointer to remain valid until after we've copied it. If we let go too early, | |
4249 | another thread could invalidate it by unsharing last of the same hash key | |
4250 | (which it can do by means other than releasing copy-on-write Svs) | |
4251 | or by changing the other copy-on-write SVs in the loop. */ | |
4252 | STATIC void | |
4253 | S_sv_release_COW(pTHX_ register SV *sv, char *pvx, STRLEN cur, STRLEN len, | |
4254 | U32 hash, SV *after) | |
4255 | { | |
4256 | if (len) { /* this SV was SvIsCOW_normal(sv) */ | |
4257 | /* we need to find the SV pointing to us. */ | |
4258 | SV *current = SV_COW_NEXT_SV(after); | |
4259 | ||
4260 | if (current == sv) { | |
4261 | /* The SV we point to points back to us (there were only two of us | |
4262 | in the loop.) | |
4263 | Hence other SV is no longer copy on write either. */ | |
4264 | SvFAKE_off(after); | |
4265 | SvREADONLY_off(after); | |
4266 | } else { | |
4267 | /* We need to follow the pointers around the loop. */ | |
4268 | SV *next; | |
4269 | while ((next = SV_COW_NEXT_SV(current)) != sv) { | |
4270 | assert (next); | |
4271 | current = next; | |
4272 | /* don't loop forever if the structure is bust, and we have | |
4273 | a pointer into a closed loop. */ | |
4274 | assert (current != after); | |
e419cbc5 | 4275 | assert (SvPVX(current) == pvx); |
765f542d NC |
4276 | } |
4277 | /* Make the SV before us point to the SV after us. */ | |
a29f6d03 | 4278 | SV_COW_NEXT_SV_SET(current, after); |
765f542d NC |
4279 | } |
4280 | } else { | |
4281 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)cur : cur, hash); | |
4282 | } | |
4283 | } | |
4284 | ||
4285 | int | |
4286 | Perl_sv_release_IVX(pTHX_ register SV *sv) | |
4287 | { | |
4288 | if (SvIsCOW(sv)) | |
4289 | sv_force_normal_flags(sv, 0); | |
4290 | return SvOOK_off(sv); | |
4291 | } | |
4292 | #endif | |
645c22ef DM |
4293 | /* |
4294 | =for apidoc sv_force_normal_flags | |
4295 | ||
4296 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4297 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
765f542d NC |
4298 | an xpvmg; if we're a copy-on-write scalar, this is the on-write time when |
4299 | we do the copy, and is also used locally. If C<SV_COW_DROP_PV> is set | |
4300 | then a copy-on-write scalar drops its PV buffer (if any) and becomes | |
4301 | SvPOK_off rather than making a copy. (Used where this scalar is about to be | |
4302 | set to some other value. In addtion, the C<flags> parameter gets passed to | |
4303 | C<sv_unref_flags()> when unrefing. C<sv_force_normal> calls this function | |
4304 | with flags set to 0. | |
645c22ef DM |
4305 | |
4306 | =cut | |
4307 | */ | |
4308 | ||
6fc92669 | 4309 | void |
840a7b70 | 4310 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4311 | { |
765f542d NC |
4312 | #ifdef PERL_COPY_ON_WRITE |
4313 | if (SvREADONLY(sv)) { | |
4314 | /* At this point I believe I should acquire a global SV mutex. */ | |
4315 | if (SvFAKE(sv)) { | |
4316 | char *pvx = SvPVX(sv); | |
4317 | STRLEN len = SvLEN(sv); | |
4318 | STRLEN cur = SvCUR(sv); | |
4319 | U32 hash = SvUVX(sv); | |
4320 | SV *next = SV_COW_NEXT_SV(sv); /* next COW sv in the loop. */ | |
46187eeb NC |
4321 | if (DEBUG_C_TEST) { |
4322 | PerlIO_printf(Perl_debug_log, | |
4323 | "Copy on write: Force normal %ld\n", | |
4324 | (long) flags); | |
e419cbc5 | 4325 | sv_dump(sv); |
46187eeb | 4326 | } |
765f542d NC |
4327 | SvFAKE_off(sv); |
4328 | SvREADONLY_off(sv); | |
4329 | /* This SV doesn't own the buffer, so need to New() a new one: */ | |
4330 | SvPVX(sv) = 0; | |
4331 | SvLEN(sv) = 0; | |
4332 | if (flags & SV_COW_DROP_PV) { | |
4333 | /* OK, so we don't need to copy our buffer. */ | |
4334 | SvPOK_off(sv); | |
4335 | } else { | |
4336 | SvGROW(sv, cur + 1); | |
4337 | Move(pvx,SvPVX(sv),cur,char); | |
4338 | SvCUR(sv) = cur; | |
4339 | *SvEND(sv) = '\0'; | |
4340 | } | |
e419cbc5 | 4341 | sv_release_COW(sv, pvx, cur, len, hash, next); |
46187eeb | 4342 | if (DEBUG_C_TEST) { |
e419cbc5 | 4343 | sv_dump(sv); |
46187eeb | 4344 | } |
765f542d NC |
4345 | } |
4346 | else if (PL_curcop != &PL_compiling) | |
4347 | Perl_croak(aTHX_ PL_no_modify); | |
4348 | /* At this point I believe that I can drop the global SV mutex. */ | |
4349 | } | |
4350 | #else | |
2213622d | 4351 | if (SvREADONLY(sv)) { |
1c846c1f NIS |
4352 | if (SvFAKE(sv)) { |
4353 | char *pvx = SvPVX(sv); | |
4354 | STRLEN len = SvCUR(sv); | |
4355 | U32 hash = SvUVX(sv); | |
4356 | SvGROW(sv, len + 1); | |
4357 | Move(pvx,SvPVX(sv),len,char); | |
4358 | *SvEND(sv) = '\0'; | |
4359 | SvFAKE_off(sv); | |
4360 | SvREADONLY_off(sv); | |
25716404 | 4361 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)len : len, hash); |
1c846c1f NIS |
4362 | } |
4363 | else if (PL_curcop != &PL_compiling) | |
cea2e8a9 | 4364 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4365 | } |
765f542d | 4366 | #endif |
2213622d | 4367 | if (SvROK(sv)) |
840a7b70 | 4368 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4369 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4370 | sv_unglob(sv); | |
0f15f207 | 4371 | } |
1c846c1f | 4372 | |
645c22ef DM |
4373 | /* |
4374 | =for apidoc sv_force_normal | |
4375 | ||
4376 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4377 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4378 | an xpvmg. See also C<sv_force_normal_flags>. | |
4379 | ||
4380 | =cut | |
4381 | */ | |
4382 | ||
840a7b70 IZ |
4383 | void |
4384 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4385 | { | |
4386 | sv_force_normal_flags(sv, 0); | |
4387 | } | |
4388 | ||
954c1994 GS |
4389 | /* |
4390 | =for apidoc sv_chop | |
4391 | ||
1c846c1f | 4392 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4393 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4394 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4395 | string. Uses the "OOK hack". |
954c1994 GS |
4396 | |
4397 | =cut | |
4398 | */ | |
4399 | ||
79072805 | 4400 | void |
645c22ef | 4401 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
4402 | { |
4403 | register STRLEN delta; | |
4404 | ||
a0d0e21e | 4405 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4406 | return; |
2213622d | 4407 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4408 | if (SvTYPE(sv) < SVt_PVIV) |
4409 | sv_upgrade(sv,SVt_PVIV); | |
4410 | ||
4411 | if (!SvOOK(sv)) { | |
50483b2c JD |
4412 | if (!SvLEN(sv)) { /* make copy of shared string */ |
4413 | char *pvx = SvPVX(sv); | |
4414 | STRLEN len = SvCUR(sv); | |
4415 | SvGROW(sv, len + 1); | |
4416 | Move(pvx,SvPVX(sv),len,char); | |
4417 | *SvEND(sv) = '\0'; | |
4418 | } | |
463ee0b2 | 4419 | SvIVX(sv) = 0; |
79072805 LW |
4420 | SvFLAGS(sv) |= SVf_OOK; |
4421 | } | |
25da4f38 | 4422 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV); |
463ee0b2 | 4423 | delta = ptr - SvPVX(sv); |
79072805 LW |
4424 | SvLEN(sv) -= delta; |
4425 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
4426 | SvPVX(sv) += delta; |
4427 | SvIVX(sv) += delta; | |
79072805 LW |
4428 | } |
4429 | ||
954c1994 GS |
4430 | /* |
4431 | =for apidoc sv_catpvn | |
4432 | ||
4433 | Concatenates the string onto the end of the string which is in the SV. The | |
d5ce4a7c GA |
4434 | C<len> indicates number of bytes to copy. If the SV has the UTF8 |
4435 | status set, then the bytes appended should be valid UTF8. | |
4436 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. | |
954c1994 | 4437 | |
8d6d96c1 HS |
4438 | =for apidoc sv_catpvn_flags |
4439 | ||
4440 | Concatenates the string onto the end of the string which is in the SV. The | |
4441 | C<len> indicates number of bytes to copy. If the SV has the UTF8 | |
4442 | status set, then the bytes appended should be valid UTF8. | |
4443 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if | |
4444 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4445 | in terms of this function. | |
4446 | ||
4447 | =cut | |
4448 | */ | |
4449 | ||
4450 | void | |
4451 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4452 | { | |
4453 | STRLEN dlen; | |
4454 | char *dstr; | |
4455 | ||
4456 | dstr = SvPV_force_flags(dsv, dlen, flags); | |
4457 | SvGROW(dsv, dlen + slen + 1); | |
4458 | if (sstr == dstr) | |
4459 | sstr = SvPVX(dsv); | |
4460 | Move(sstr, SvPVX(dsv) + dlen, slen, char); | |
4461 | SvCUR(dsv) += slen; | |
4462 | *SvEND(dsv) = '\0'; | |
4463 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4464 | SvTAINT(dsv); | |
79072805 LW |
4465 | } |
4466 | ||
954c1994 GS |
4467 | /* |
4468 | =for apidoc sv_catpvn_mg | |
4469 | ||
4470 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4471 | ||
4472 | =cut | |
4473 | */ | |
4474 | ||
79072805 | 4475 | void |
864dbfa3 | 4476 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4477 | { |
4478 | sv_catpvn(sv,ptr,len); | |
4479 | SvSETMAGIC(sv); | |
4480 | } | |
4481 | ||
954c1994 GS |
4482 | /* |
4483 | =for apidoc sv_catsv | |
4484 | ||
13e8c8e3 JH |
4485 | Concatenates the string from SV C<ssv> onto the end of the string in |
4486 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4487 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4488 | |
8d6d96c1 HS |
4489 | =for apidoc sv_catsv_flags |
4490 | ||
4491 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4492 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4493 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4494 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4495 | ||
4496 | =cut */ | |
4497 | ||
ef50df4b | 4498 | void |
8d6d96c1 | 4499 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4500 | { |
13e8c8e3 JH |
4501 | char *spv; |
4502 | STRLEN slen; | |
46199a12 | 4503 | if (!ssv) |
79072805 | 4504 | return; |
46199a12 | 4505 | if ((spv = SvPV(ssv, slen))) { |
4fd84b44 AD |
4506 | /* sutf8 and dutf8 were type bool, but under USE_ITHREADS, |
4507 | gcc version 2.95.2 20000220 (Debian GNU/Linux) for | |
8cf8f3d1 NIS |
4508 | Linux xxx 2.2.17 on sparc64 with gcc -O2, we erroneously |
4509 | get dutf8 = 0x20000000, (i.e. SVf_UTF8) even though | |
4fd84b44 AD |
4510 | dsv->sv_flags doesn't have that bit set. |
4511 | Andy Dougherty 12 Oct 2001 | |
4512 | */ | |
4513 | I32 sutf8 = DO_UTF8(ssv); | |
4514 | I32 dutf8; | |
13e8c8e3 | 4515 | |
8d6d96c1 HS |
4516 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4517 | mg_get(dsv); | |
4518 | dutf8 = DO_UTF8(dsv); | |
4519 | ||
4520 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4521 | if (dutf8) { |
46199a12 | 4522 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4523 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4524 | |
46199a12 | 4525 | sv_utf8_upgrade(csv); |
8d6d96c1 | 4526 | spv = SvPV(csv, slen); |
13e8c8e3 | 4527 | } |
8d6d96c1 HS |
4528 | else |
4529 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4530 | } |
8d6d96c1 | 4531 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4532 | } |
79072805 LW |
4533 | } |
4534 | ||
954c1994 GS |
4535 | /* |
4536 | =for apidoc sv_catsv_mg | |
4537 | ||
4538 | Like C<sv_catsv>, but also handles 'set' magic. | |
4539 | ||
4540 | =cut | |
4541 | */ | |
4542 | ||
79072805 | 4543 | void |
46199a12 | 4544 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4545 | { |
46199a12 JH |
4546 | sv_catsv(dsv,ssv); |
4547 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4548 | } |
4549 | ||
954c1994 GS |
4550 | /* |
4551 | =for apidoc sv_catpv | |
4552 | ||
4553 | Concatenates the string onto the end of the string which is in the SV. | |
d5ce4a7c GA |
4554 | If the SV has the UTF8 status set, then the bytes appended should be |
4555 | valid UTF8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4556 | |
d5ce4a7c | 4557 | =cut */ |
954c1994 | 4558 | |
ef50df4b | 4559 | void |
0c981600 | 4560 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4561 | { |
4562 | register STRLEN len; | |
463ee0b2 | 4563 | STRLEN tlen; |
748a9306 | 4564 | char *junk; |
79072805 | 4565 | |
0c981600 | 4566 | if (!ptr) |
79072805 | 4567 | return; |
748a9306 | 4568 | junk = SvPV_force(sv, tlen); |
0c981600 | 4569 | len = strlen(ptr); |
463ee0b2 | 4570 | SvGROW(sv, tlen + len + 1); |
0c981600 JH |
4571 | if (ptr == junk) |
4572 | ptr = SvPVX(sv); | |
4573 | Move(ptr,SvPVX(sv)+tlen,len+1,char); | |
79072805 | 4574 | SvCUR(sv) += len; |
d41ff1b8 | 4575 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4576 | SvTAINT(sv); |
79072805 LW |
4577 | } |
4578 | ||
954c1994 GS |
4579 | /* |
4580 | =for apidoc sv_catpv_mg | |
4581 | ||
4582 | Like C<sv_catpv>, but also handles 'set' magic. | |
4583 | ||
4584 | =cut | |
4585 | */ | |
4586 | ||
ef50df4b | 4587 | void |
0c981600 | 4588 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4589 | { |
0c981600 | 4590 | sv_catpv(sv,ptr); |
ef50df4b GS |
4591 | SvSETMAGIC(sv); |
4592 | } | |
4593 | ||
645c22ef DM |
4594 | /* |
4595 | =for apidoc newSV | |
4596 | ||
4597 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4598 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4599 | macro. | |
4600 | ||
4601 | =cut | |
4602 | */ | |
4603 | ||
79072805 | 4604 | SV * |
864dbfa3 | 4605 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4606 | { |
4607 | register SV *sv; | |
1c846c1f | 4608 | |
4561caa4 | 4609 | new_SV(sv); |
79072805 LW |
4610 | if (len) { |
4611 | sv_upgrade(sv, SVt_PV); | |
4612 | SvGROW(sv, len + 1); | |
4613 | } | |
4614 | return sv; | |
4615 | } | |
954c1994 | 4616 | /* |
92110913 | 4617 | =for apidoc sv_magicext |
954c1994 | 4618 | |
68795e93 | 4619 | Adds magic to an SV, upgrading it if necessary. Applies the |
92110913 NIS |
4620 | supplied vtable and returns pointer to the magic added. |
4621 | ||
4622 | Note that sv_magicext will allow things that sv_magic will not. | |
68795e93 | 4623 | In particular you can add magic to SvREADONLY SVs and and more than |
92110913 | 4624 | one instance of the same 'how' |
645c22ef | 4625 | |
92110913 | 4626 | I C<namelen> is greater then zero then a savepvn() I<copy> of C<name> is stored, |
68795e93 NIS |
4627 | if C<namelen> is zero then C<name> is stored as-is and - as another special |
4628 | case - if C<(name && namelen == HEf_SVKEY)> then C<name> is assumed to contain | |
92110913 NIS |
4629 | an C<SV*> and has its REFCNT incremented |
4630 | ||
4631 | (This is now used as a subroutine by sv_magic.) | |
954c1994 GS |
4632 | |
4633 | =cut | |
4634 | */ | |
92110913 NIS |
4635 | MAGIC * |
4636 | Perl_sv_magicext(pTHX_ SV* sv, SV* obj, int how, MGVTBL *vtable, | |
4637 | const char* name, I32 namlen) | |
79072805 LW |
4638 | { |
4639 | MAGIC* mg; | |
68795e93 | 4640 | |
92110913 NIS |
4641 | if (SvTYPE(sv) < SVt_PVMG) { |
4642 | (void)SvUPGRADE(sv, SVt_PVMG); | |
463ee0b2 | 4643 | } |
79072805 LW |
4644 | Newz(702,mg, 1, MAGIC); |
4645 | mg->mg_moremagic = SvMAGIC(sv); | |
79072805 | 4646 | SvMAGIC(sv) = mg; |
75f9d97a | 4647 | |
18808301 | 4648 | /* Some magic sontains a reference loop, where the sv and object refer to |
bb03859b RS |
4649 | each other. To prevent a reference loop that would prevent such |
4650 | objects being freed, we look for such loops and if we find one we | |
87f0b213 JH |
4651 | avoid incrementing the object refcount. |
4652 | ||
4653 | Note we cannot do this to avoid self-tie loops as intervening RV must | |
b5ccf5f2 | 4654 | have its REFCNT incremented to keep it in existence. |
87f0b213 JH |
4655 | |
4656 | */ | |
14befaf4 DM |
4657 | if (!obj || obj == sv || |
4658 | how == PERL_MAGIC_arylen || | |
4659 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
4660 | (SvTYPE(obj) == SVt_PVGV && |
4661 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4662 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
2628be26 | 4663 | GvFORM(obj) == (CV*)sv))) |
75f9d97a | 4664 | { |
8990e307 | 4665 | mg->mg_obj = obj; |
75f9d97a | 4666 | } |
85e6fe83 | 4667 | else { |
8990e307 | 4668 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4669 | mg->mg_flags |= MGf_REFCOUNTED; |
4670 | } | |
b5ccf5f2 YST |
4671 | |
4672 | /* Normal self-ties simply pass a null object, and instead of | |
4673 | using mg_obj directly, use the SvTIED_obj macro to produce a | |
4674 | new RV as needed. For glob "self-ties", we are tieing the PVIO | |
4675 | with an RV obj pointing to the glob containing the PVIO. In | |
4676 | this case, to avoid a reference loop, we need to weaken the | |
4677 | reference. | |
4678 | */ | |
4679 | ||
4680 | if (how == PERL_MAGIC_tiedscalar && SvTYPE(sv) == SVt_PVIO && | |
4681 | obj && SvROK(obj) && GvIO(SvRV(obj)) == (IO*)sv) | |
4682 | { | |
4683 | sv_rvweaken(obj); | |
4684 | } | |
4685 | ||
79072805 | 4686 | mg->mg_type = how; |
565764a8 | 4687 | mg->mg_len = namlen; |
9cbac4c7 | 4688 | if (name) { |
92110913 | 4689 | if (namlen > 0) |
1edc1566 | 4690 | mg->mg_ptr = savepvn(name, namlen); |
c6ee37c5 | 4691 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4692 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
68795e93 | 4693 | else |
92110913 | 4694 | mg->mg_ptr = (char *) name; |
9cbac4c7 | 4695 | } |
92110913 | 4696 | mg->mg_virtual = vtable; |
68795e93 | 4697 | |
92110913 NIS |
4698 | mg_magical(sv); |
4699 | if (SvGMAGICAL(sv)) | |
4700 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
4701 | return mg; | |
4702 | } | |
4703 | ||
4704 | /* | |
4705 | =for apidoc sv_magic | |
1c846c1f | 4706 | |
92110913 NIS |
4707 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4708 | then adds a new magic item of type C<how> to the head of the magic list. | |
4709 | ||
4710 | =cut | |
4711 | */ | |
4712 | ||
4713 | void | |
4714 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) | |
68795e93 | 4715 | { |
92110913 NIS |
4716 | MAGIC* mg; |
4717 | MGVTBL *vtable = 0; | |
4718 | ||
765f542d NC |
4719 | #ifdef PERL_COPY_ON_WRITE |
4720 | if (SvIsCOW(sv)) | |
4721 | sv_force_normal_flags(sv, 0); | |
4722 | #endif | |
92110913 NIS |
4723 | if (SvREADONLY(sv)) { |
4724 | if (PL_curcop != &PL_compiling | |
4725 | && how != PERL_MAGIC_regex_global | |
4726 | && how != PERL_MAGIC_bm | |
4727 | && how != PERL_MAGIC_fm | |
4728 | && how != PERL_MAGIC_sv | |
4729 | ) | |
4730 | { | |
4731 | Perl_croak(aTHX_ PL_no_modify); | |
4732 | } | |
4733 | } | |
4734 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { | |
4735 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { | |
68795e93 NIS |
4736 | /* sv_magic() refuses to add a magic of the same 'how' as an |
4737 | existing one | |
92110913 NIS |
4738 | */ |
4739 | if (how == PERL_MAGIC_taint) | |
4740 | mg->mg_len |= 1; | |
4741 | return; | |
4742 | } | |
4743 | } | |
68795e93 | 4744 | |
79072805 | 4745 | switch (how) { |
14befaf4 | 4746 | case PERL_MAGIC_sv: |
92110913 | 4747 | vtable = &PL_vtbl_sv; |
79072805 | 4748 | break; |
14befaf4 | 4749 | case PERL_MAGIC_overload: |
92110913 | 4750 | vtable = &PL_vtbl_amagic; |
a0d0e21e | 4751 | break; |
14befaf4 | 4752 | case PERL_MAGIC_overload_elem: |
92110913 | 4753 | vtable = &PL_vtbl_amagicelem; |
a0d0e21e | 4754 | break; |
14befaf4 | 4755 | case PERL_MAGIC_overload_table: |
92110913 | 4756 | vtable = &PL_vtbl_ovrld; |
a0d0e21e | 4757 | break; |
14befaf4 | 4758 | case PERL_MAGIC_bm: |
92110913 | 4759 | vtable = &PL_vtbl_bm; |
79072805 | 4760 | break; |
14befaf4 | 4761 | case PERL_MAGIC_regdata: |
92110913 | 4762 | vtable = &PL_vtbl_regdata; |
6cef1e77 | 4763 | break; |
14befaf4 | 4764 | case PERL_MAGIC_regdatum: |
92110913 | 4765 | vtable = &PL_vtbl_regdatum; |
6cef1e77 | 4766 | break; |
14befaf4 | 4767 | case PERL_MAGIC_env: |
92110913 | 4768 | vtable = &PL_vtbl_env; |
79072805 | 4769 | break; |
14befaf4 | 4770 | case PERL_MAGIC_fm: |
92110913 | 4771 | vtable = &PL_vtbl_fm; |
55497cff | 4772 | break; |
14befaf4 | 4773 | case PERL_MAGIC_envelem: |
92110913 | 4774 | vtable = &PL_vtbl_envelem; |
79072805 | 4775 | break; |
14befaf4 | 4776 | case PERL_MAGIC_regex_global: |
92110913 | 4777 | vtable = &PL_vtbl_mglob; |
93a17b20 | 4778 | break; |
14befaf4 | 4779 | case PERL_MAGIC_isa: |
92110913 | 4780 | vtable = &PL_vtbl_isa; |
463ee0b2 | 4781 | break; |
14befaf4 | 4782 | case PERL_MAGIC_isaelem: |
92110913 | 4783 | vtable = &PL_vtbl_isaelem; |
463ee0b2 | 4784 | break; |
14befaf4 | 4785 | case PERL_MAGIC_nkeys: |
92110913 | 4786 | vtable = &PL_vtbl_nkeys; |
16660edb | 4787 | break; |
14befaf4 | 4788 | case PERL_MAGIC_dbfile: |
92110913 | 4789 | vtable = 0; |
93a17b20 | 4790 | break; |
14befaf4 | 4791 | case PERL_MAGIC_dbline: |
92110913 | 4792 | vtable = &PL_vtbl_dbline; |
79072805 | 4793 | break; |
36477c24 | 4794 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 4795 | case PERL_MAGIC_collxfrm: |
92110913 | 4796 | vtable = &PL_vtbl_collxfrm; |
bbce6d69 | 4797 | break; |
36477c24 | 4798 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 4799 | case PERL_MAGIC_tied: |
92110913 | 4800 | vtable = &PL_vtbl_pack; |
463ee0b2 | 4801 | break; |
14befaf4 DM |
4802 | case PERL_MAGIC_tiedelem: |
4803 | case PERL_MAGIC_tiedscalar: | |
92110913 | 4804 | vtable = &PL_vtbl_packelem; |
463ee0b2 | 4805 | break; |
14befaf4 | 4806 | case PERL_MAGIC_qr: |
92110913 | 4807 | vtable = &PL_vtbl_regexp; |
c277df42 | 4808 | break; |
14befaf4 | 4809 | case PERL_MAGIC_sig: |
92110913 | 4810 | vtable = &PL_vtbl_sig; |
79072805 | 4811 | break; |
14befaf4 | 4812 | case PERL_MAGIC_sigelem: |
92110913 | 4813 | vtable = &PL_vtbl_sigelem; |
79072805 | 4814 | break; |
14befaf4 | 4815 | case PERL_MAGIC_taint: |
92110913 | 4816 | vtable = &PL_vtbl_taint; |
463ee0b2 | 4817 | break; |
14befaf4 | 4818 | case PERL_MAGIC_uvar: |
92110913 | 4819 | vtable = &PL_vtbl_uvar; |
79072805 | 4820 | break; |
14befaf4 | 4821 | case PERL_MAGIC_vec: |
92110913 | 4822 | vtable = &PL_vtbl_vec; |
79072805 | 4823 | break; |
ece467f9 JP |
4824 | case PERL_MAGIC_vstring: |
4825 | vtable = 0; | |
4826 | break; | |
14befaf4 | 4827 | case PERL_MAGIC_substr: |
92110913 | 4828 | vtable = &PL_vtbl_substr; |
79072805 | 4829 | break; |
14befaf4 | 4830 | case PERL_MAGIC_defelem: |
92110913 | 4831 | vtable = &PL_vtbl_defelem; |
5f05dabc | 4832 | break; |
14befaf4 | 4833 | case PERL_MAGIC_glob: |
92110913 | 4834 | vtable = &PL_vtbl_glob; |
79072805 | 4835 | break; |
14befaf4 | 4836 | case PERL_MAGIC_arylen: |
92110913 | 4837 | vtable = &PL_vtbl_arylen; |
79072805 | 4838 | break; |
14befaf4 | 4839 | case PERL_MAGIC_pos: |
92110913 | 4840 | vtable = &PL_vtbl_pos; |
a0d0e21e | 4841 | break; |
14befaf4 | 4842 | case PERL_MAGIC_backref: |
92110913 | 4843 | vtable = &PL_vtbl_backref; |
810b8aa5 | 4844 | break; |
14befaf4 DM |
4845 | case PERL_MAGIC_ext: |
4846 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
4847 | /* Useful for attaching extension internal data to perl vars. */ |
4848 | /* Note that multiple extensions may clash if magical scalars */ | |
4849 | /* etc holding private data from one are passed to another. */ | |
a0d0e21e | 4850 | break; |
79072805 | 4851 | default: |
14befaf4 | 4852 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 4853 | } |
68795e93 | 4854 | |
92110913 NIS |
4855 | /* Rest of work is done else where */ |
4856 | mg = sv_magicext(sv,obj,how,vtable,name,namlen); | |
68795e93 | 4857 | |
92110913 NIS |
4858 | switch (how) { |
4859 | case PERL_MAGIC_taint: | |
4860 | mg->mg_len = 1; | |
4861 | break; | |
4862 | case PERL_MAGIC_ext: | |
4863 | case PERL_MAGIC_dbfile: | |
4864 | SvRMAGICAL_on(sv); | |
4865 | break; | |
4866 | } | |
463ee0b2 LW |
4867 | } |
4868 | ||
c461cf8f JH |
4869 | /* |
4870 | =for apidoc sv_unmagic | |
4871 | ||
645c22ef | 4872 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
4873 | |
4874 | =cut | |
4875 | */ | |
4876 | ||
463ee0b2 | 4877 | int |
864dbfa3 | 4878 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
4879 | { |
4880 | MAGIC* mg; | |
4881 | MAGIC** mgp; | |
91bba347 | 4882 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
4883 | return 0; |
4884 | mgp = &SvMAGIC(sv); | |
4885 | for (mg = *mgp; mg; mg = *mgp) { | |
4886 | if (mg->mg_type == type) { | |
4887 | MGVTBL* vtbl = mg->mg_virtual; | |
4888 | *mgp = mg->mg_moremagic; | |
1d7c1841 | 4889 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 4890 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 4891 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
92110913 | 4892 | if (mg->mg_len > 0) |
1edc1566 | 4893 | Safefree(mg->mg_ptr); |
565764a8 | 4894 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 4895 | SvREFCNT_dec((SV*)mg->mg_ptr); |
9cbac4c7 | 4896 | } |
a0d0e21e LW |
4897 | if (mg->mg_flags & MGf_REFCOUNTED) |
4898 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
4899 | Safefree(mg); |
4900 | } | |
4901 | else | |
4902 | mgp = &mg->mg_moremagic; | |
79072805 | 4903 | } |
91bba347 | 4904 | if (!SvMAGIC(sv)) { |
463ee0b2 | 4905 | SvMAGICAL_off(sv); |
06759ea0 | 4906 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
4907 | } |
4908 | ||
4909 | return 0; | |
79072805 LW |
4910 | } |
4911 | ||
c461cf8f JH |
4912 | /* |
4913 | =for apidoc sv_rvweaken | |
4914 | ||
645c22ef DM |
4915 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
4916 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
4917 | push a back-reference to this RV onto the array of backreferences | |
4918 | associated with that magic. | |
c461cf8f JH |
4919 | |
4920 | =cut | |
4921 | */ | |
4922 | ||
810b8aa5 | 4923 | SV * |
864dbfa3 | 4924 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
4925 | { |
4926 | SV *tsv; | |
4927 | if (!SvOK(sv)) /* let undefs pass */ | |
4928 | return sv; | |
4929 | if (!SvROK(sv)) | |
cea2e8a9 | 4930 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 4931 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 4932 | if (ckWARN(WARN_MISC)) |
9014280d | 4933 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Reference is already weak"); |
810b8aa5 GS |
4934 | return sv; |
4935 | } | |
4936 | tsv = SvRV(sv); | |
4937 | sv_add_backref(tsv, sv); | |
4938 | SvWEAKREF_on(sv); | |
1c846c1f | 4939 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
4940 | return sv; |
4941 | } | |
4942 | ||
645c22ef DM |
4943 | /* Give tsv backref magic if it hasn't already got it, then push a |
4944 | * back-reference to sv onto the array associated with the backref magic. | |
4945 | */ | |
4946 | ||
810b8aa5 | 4947 | STATIC void |
cea2e8a9 | 4948 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
4949 | { |
4950 | AV *av; | |
4951 | MAGIC *mg; | |
14befaf4 | 4952 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
4953 | av = (AV*)mg->mg_obj; |
4954 | else { | |
4955 | av = newAV(); | |
14befaf4 | 4956 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
810b8aa5 GS |
4957 | SvREFCNT_dec(av); /* for sv_magic */ |
4958 | } | |
4959 | av_push(av,sv); | |
4960 | } | |
4961 | ||
645c22ef DM |
4962 | /* delete a back-reference to ourselves from the backref magic associated |
4963 | * with the SV we point to. | |
4964 | */ | |
4965 | ||
1c846c1f | 4966 | STATIC void |
cea2e8a9 | 4967 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
4968 | { |
4969 | AV *av; | |
4970 | SV **svp; | |
4971 | I32 i; | |
4972 | SV *tsv = SvRV(sv); | |
c04a4dfe | 4973 | MAGIC *mg = NULL; |
14befaf4 | 4974 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 4975 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
4976 | av = (AV *)mg->mg_obj; |
4977 | svp = AvARRAY(av); | |
4978 | i = AvFILLp(av); | |
4979 | while (i >= 0) { | |
4980 | if (svp[i] == sv) { | |
4981 | svp[i] = &PL_sv_undef; /* XXX */ | |
4982 | } | |
4983 | i--; | |
4984 | } | |
4985 | } | |
4986 | ||
954c1994 GS |
4987 | /* |
4988 | =for apidoc sv_insert | |
4989 | ||
4990 | Inserts a string at the specified offset/length within the SV. Similar to | |
4991 | the Perl substr() function. | |
4992 | ||
4993 | =cut | |
4994 | */ | |
4995 | ||
79072805 | 4996 | void |
864dbfa3 | 4997 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
4998 | { |
4999 | register char *big; | |
5000 | register char *mid; | |
5001 | register char *midend; | |
5002 | register char *bigend; | |
5003 | register I32 i; | |
6ff81951 | 5004 | STRLEN curlen; |
1c846c1f | 5005 | |
79072805 | 5006 | |
8990e307 | 5007 | if (!bigstr) |
cea2e8a9 | 5008 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 5009 | SvPV_force(bigstr, curlen); |
60fa28ff | 5010 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
5011 | if (offset + len > curlen) { |
5012 | SvGROW(bigstr, offset+len+1); | |
5013 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
5014 | SvCUR_set(bigstr, offset+len); | |
5015 | } | |
79072805 | 5016 | |
69b47968 | 5017 | SvTAINT(bigstr); |
79072805 LW |
5018 | i = littlelen - len; |
5019 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 5020 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
5021 | mid = big + offset + len; |
5022 | midend = bigend = big + SvCUR(bigstr); | |
5023 | bigend += i; | |
5024 | *bigend = '\0'; | |
5025 | while (midend > mid) /* shove everything down */ | |
5026 | *--bigend = *--midend; | |
5027 | Move(little,big+offset,littlelen,char); | |
5028 | SvCUR(bigstr) += i; | |
5029 | SvSETMAGIC(bigstr); | |
5030 | return; | |
5031 | } | |
5032 | else if (i == 0) { | |
463ee0b2 | 5033 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
5034 | SvSETMAGIC(bigstr); |
5035 | return; | |
5036 | } | |
5037 | ||
463ee0b2 | 5038 | big = SvPVX(bigstr); |
79072805 LW |
5039 | mid = big + offset; |
5040 | midend = mid + len; | |
5041 | bigend = big + SvCUR(bigstr); | |
5042 | ||
5043 | if (midend > bigend) | |
cea2e8a9 | 5044 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
5045 | |
5046 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
5047 | if (littlelen) { | |
5048 | Move(little, mid, littlelen,char); | |
5049 | mid += littlelen; | |
5050 | } | |
5051 | i = bigend - midend; | |
5052 | if (i > 0) { | |
5053 | Move(midend, mid, i,char); | |
5054 | mid += i; | |
5055 | } | |
5056 | *mid = '\0'; | |
5057 | SvCUR_set(bigstr, mid - big); | |
5058 | } | |
5059 | /*SUPPRESS 560*/ | |
155aba94 | 5060 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
5061 | midend -= littlelen; |
5062 | mid = midend; | |
5063 | sv_chop(bigstr,midend-i); | |
5064 | big += i; | |
5065 | while (i--) | |
5066 | *--midend = *--big; | |
5067 | if (littlelen) | |
5068 | Move(little, mid, littlelen,char); | |
5069 | } | |
5070 | else if (littlelen) { | |
5071 | midend -= littlelen; | |
5072 | sv_chop(bigstr,midend); | |
5073 | Move(little,midend,littlelen,char); | |
5074 | } | |
5075 | else { | |
5076 | sv_chop(bigstr,midend); | |
5077 | } | |
5078 | SvSETMAGIC(bigstr); | |
5079 | } | |
5080 | ||
c461cf8f JH |
5081 | /* |
5082 | =for apidoc sv_replace | |
5083 | ||
5084 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
5085 | The target SV physically takes over ownership of the body of the source SV |
5086 | and inherits its flags; however, the target keeps any magic it owns, | |
5087 | and any magic in the source is discarded. | |
ff276b08 | 5088 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 5089 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
5090 | |
5091 | =cut | |
5092 | */ | |
79072805 LW |
5093 | |
5094 | void | |
864dbfa3 | 5095 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 LW |
5096 | { |
5097 | U32 refcnt = SvREFCNT(sv); | |
765f542d | 5098 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
0453d815 | 5099 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 5100 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Reference miscount in sv_replace()"); |
93a17b20 | 5101 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
5102 | if (SvMAGICAL(nsv)) |
5103 | mg_free(nsv); | |
5104 | else | |
5105 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 5106 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 5107 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
5108 | SvMAGICAL_off(sv); |
5109 | SvMAGIC(sv) = 0; | |
5110 | } | |
79072805 LW |
5111 | SvREFCNT(sv) = 0; |
5112 | sv_clear(sv); | |
477f5d66 | 5113 | assert(!SvREFCNT(sv)); |
79072805 | 5114 | StructCopy(nsv,sv,SV); |
d3d0e6f1 NC |
5115 | #ifdef PERL_COPY_ON_WRITE |
5116 | if (SvIsCOW_normal(nsv)) { | |
5117 | /* We need to follow the pointers around the loop to make the | |
5118 | previous SV point to sv, rather than nsv. */ | |
5119 | SV *next; | |
5120 | SV *current = nsv; | |
5121 | while ((next = SV_COW_NEXT_SV(current)) != nsv) { | |
5122 | assert(next); | |
5123 | current = next; | |
5124 | assert(SvPVX(current) == SvPVX(nsv)); | |
5125 | } | |
5126 | /* Make the SV before us point to the SV after us. */ | |
5127 | if (DEBUG_C_TEST) { | |
5128 | PerlIO_printf(Perl_debug_log, "previous is\n"); | |
5129 | sv_dump(current); | |
a29f6d03 NC |
5130 | PerlIO_printf(Perl_debug_log, |
5131 | "move it from 0x%"UVxf" to 0x%"UVxf"\n", | |
d3d0e6f1 NC |
5132 | (UV) SV_COW_NEXT_SV(current), (UV) sv); |
5133 | } | |
a29f6d03 | 5134 | SV_COW_NEXT_SV_SET(current, sv); |
d3d0e6f1 NC |
5135 | } |
5136 | #endif | |
79072805 | 5137 | SvREFCNT(sv) = refcnt; |
1edc1566 | 5138 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
463ee0b2 | 5139 | del_SV(nsv); |
79072805 LW |
5140 | } |
5141 | ||
c461cf8f JH |
5142 | /* |
5143 | =for apidoc sv_clear | |
5144 | ||
645c22ef DM |
5145 | Clear an SV: call any destructors, free up any memory used by the body, |
5146 | and free the body itself. The SV's head is I<not> freed, although | |
5147 | its type is set to all 1's so that it won't inadvertently be assumed | |
5148 | to be live during global destruction etc. | |
5149 | This function should only be called when REFCNT is zero. Most of the time | |
5150 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
5151 | instead. | |
c461cf8f JH |
5152 | |
5153 | =cut | |
5154 | */ | |
5155 | ||
79072805 | 5156 | void |
864dbfa3 | 5157 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 5158 | { |
ec12f114 | 5159 | HV* stash; |
79072805 LW |
5160 | assert(sv); |
5161 | assert(SvREFCNT(sv) == 0); | |
5162 | ||
ed6116ce | 5163 | if (SvOBJECT(sv)) { |
3280af22 | 5164 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 5165 | dSP; |
32251b26 | 5166 | CV* destructor; |
837485b6 | 5167 | SV tmpref; |
a0d0e21e | 5168 | |
837485b6 GS |
5169 | Zero(&tmpref, 1, SV); |
5170 | sv_upgrade(&tmpref, SVt_RV); | |
5171 | SvROK_on(&tmpref); | |
5172 | SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ | |
5173 | SvREFCNT(&tmpref) = 1; | |
8ebc5c01 | 5174 | |
d460ef45 | 5175 | do { |
4e8e7886 | 5176 | stash = SvSTASH(sv); |
32251b26 | 5177 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 GS |
5178 | if (destructor) { |
5179 | ENTER; | |
e788e7d3 | 5180 | PUSHSTACKi(PERLSI_DESTROY); |
837485b6 | 5181 | SvRV(&tmpref) = SvREFCNT_inc(sv); |
4e8e7886 GS |
5182 | EXTEND(SP, 2); |
5183 | PUSHMARK(SP); | |
837485b6 | 5184 | PUSHs(&tmpref); |
4e8e7886 | 5185 | PUTBACK; |
44389ee9 | 5186 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR|G_VOID); |
4e8e7886 | 5187 | SvREFCNT(sv)--; |
d3acc0f7 | 5188 | POPSTACK; |
3095d977 | 5189 | SPAGAIN; |
4e8e7886 GS |
5190 | LEAVE; |
5191 | } | |
5192 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 5193 | |
837485b6 | 5194 | del_XRV(SvANY(&tmpref)); |
6f44e0a4 JP |
5195 | |
5196 | if (SvREFCNT(sv)) { | |
5197 | if (PL_in_clean_objs) | |
cea2e8a9 | 5198 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
6f44e0a4 JP |
5199 | HvNAME(stash)); |
5200 | /* DESTROY gave object new lease on life */ | |
5201 | return; | |
5202 | } | |
a0d0e21e | 5203 | } |
4e8e7886 | 5204 | |
a0d0e21e | 5205 | if (SvOBJECT(sv)) { |
4e8e7886 | 5206 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
5207 | SvOBJECT_off(sv); /* Curse the object. */ |
5208 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 5209 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 5210 | } |
463ee0b2 | 5211 | } |
524189f1 JH |
5212 | if (SvTYPE(sv) >= SVt_PVMG) { |
5213 | if (SvMAGIC(sv)) | |
5214 | mg_free(sv); | |
5215 | if (SvFLAGS(sv) & SVpad_TYPED) | |
5216 | SvREFCNT_dec(SvSTASH(sv)); | |
5217 | } | |
ec12f114 | 5218 | stash = NULL; |
79072805 | 5219 | switch (SvTYPE(sv)) { |
8990e307 | 5220 | case SVt_PVIO: |
df0bd2f4 GS |
5221 | if (IoIFP(sv) && |
5222 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 5223 | IoIFP(sv) != PerlIO_stdout() && |
5224 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 5225 | { |
f2b5be74 | 5226 | io_close((IO*)sv, FALSE); |
93578b34 | 5227 | } |
1d7c1841 | 5228 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 5229 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 5230 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
5231 | Safefree(IoTOP_NAME(sv)); |
5232 | Safefree(IoFMT_NAME(sv)); | |
5233 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 5234 | /* FALL THROUGH */ |
79072805 | 5235 | case SVt_PVBM: |
a0d0e21e | 5236 | goto freescalar; |
79072805 | 5237 | case SVt_PVCV: |
748a9306 | 5238 | case SVt_PVFM: |
85e6fe83 | 5239 | cv_undef((CV*)sv); |
a0d0e21e | 5240 | goto freescalar; |
79072805 | 5241 | case SVt_PVHV: |
85e6fe83 | 5242 | hv_undef((HV*)sv); |
a0d0e21e | 5243 | break; |
79072805 | 5244 | case SVt_PVAV: |
85e6fe83 | 5245 | av_undef((AV*)sv); |
a0d0e21e | 5246 | break; |
02270b4e GS |
5247 | case SVt_PVLV: |
5248 | SvREFCNT_dec(LvTARG(sv)); | |
5249 | goto freescalar; | |
a0d0e21e | 5250 | case SVt_PVGV: |
1edc1566 | 5251 | gp_free((GV*)sv); |
a0d0e21e | 5252 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
5253 | /* cannot decrease stash refcount yet, as we might recursively delete |
5254 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
5255 | of stash until current sv is completely gone. | |
5256 | -- JohnPC, 27 Mar 1998 */ | |
5257 | stash = GvSTASH(sv); | |
a0d0e21e | 5258 | /* FALL THROUGH */ |
79072805 | 5259 | case SVt_PVMG: |
79072805 LW |
5260 | case SVt_PVNV: |
5261 | case SVt_PVIV: | |
a0d0e21e LW |
5262 | freescalar: |
5263 | (void)SvOOK_off(sv); | |
79072805 LW |
5264 | /* FALL THROUGH */ |
5265 | case SVt_PV: | |
a0d0e21e | 5266 | case SVt_RV: |
810b8aa5 GS |
5267 | if (SvROK(sv)) { |
5268 | if (SvWEAKREF(sv)) | |
5269 | sv_del_backref(sv); | |
5270 | else | |
5271 | SvREFCNT_dec(SvRV(sv)); | |
5272 | } | |
765f542d NC |
5273 | #ifdef PERL_COPY_ON_WRITE |
5274 | else if (SvPVX(sv)) { | |
5275 | if (SvIsCOW(sv)) { | |
5276 | /* I believe I need to grab the global SV mutex here and | |
5277 | then recheck the COW status. */ | |
46187eeb NC |
5278 | if (DEBUG_C_TEST) { |
5279 | PerlIO_printf(Perl_debug_log, "Copy on write: clear\n"); | |
e419cbc5 | 5280 | sv_dump(sv); |
46187eeb | 5281 | } |
e419cbc5 | 5282 | sv_release_COW(sv, SvPVX(sv), SvCUR(sv), SvLEN(sv), |
765f542d NC |
5283 | SvUVX(sv), SV_COW_NEXT_SV(sv)); |
5284 | /* And drop it here. */ | |
5285 | SvFAKE_off(sv); | |
5286 | } else if (SvLEN(sv)) { | |
5287 | Safefree(SvPVX(sv)); | |
5288 | } | |
5289 | } | |
5290 | #else | |
1edc1566 | 5291 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 5292 | Safefree(SvPVX(sv)); |
1c846c1f | 5293 | else if (SvPVX(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
25716404 GS |
5294 | unsharepvn(SvPVX(sv), |
5295 | SvUTF8(sv) ? -(I32)SvCUR(sv) : SvCUR(sv), | |
5296 | SvUVX(sv)); | |
1c846c1f NIS |
5297 | SvFAKE_off(sv); |
5298 | } | |
765f542d | 5299 | #endif |
79072805 | 5300 | break; |
a0d0e21e | 5301 | /* |
79072805 | 5302 | case SVt_NV: |
79072805 | 5303 | case SVt_IV: |
79072805 LW |
5304 | case SVt_NULL: |
5305 | break; | |
a0d0e21e | 5306 | */ |
79072805 LW |
5307 | } |
5308 | ||
5309 | switch (SvTYPE(sv)) { | |
5310 | case SVt_NULL: | |
5311 | break; | |
79072805 LW |
5312 | case SVt_IV: |
5313 | del_XIV(SvANY(sv)); | |
5314 | break; | |
5315 | case SVt_NV: | |
5316 | del_XNV(SvANY(sv)); | |
5317 | break; | |
ed6116ce LW |
5318 | case SVt_RV: |
5319 | del_XRV(SvANY(sv)); | |
5320 | break; | |
79072805 LW |
5321 | case SVt_PV: |
5322 | del_XPV(SvANY(sv)); | |
5323 | break; | |
5324 | case SVt_PVIV: | |
5325 | del_XPVIV(SvANY(sv)); | |
5326 | break; | |
5327 | case SVt_PVNV: | |
5328 | del_XPVNV(SvANY(sv)); | |
5329 | break; | |
5330 | case SVt_PVMG: | |
5331 | del_XPVMG(SvANY(sv)); | |
5332 | break; | |
5333 | case SVt_PVLV: | |
5334 | del_XPVLV(SvANY(sv)); | |
5335 | break; | |
5336 | case SVt_PVAV: | |
5337 | del_XPVAV(SvANY(sv)); | |
5338 | break; | |
5339 | case SVt_PVHV: | |
5340 | del_XPVHV(SvANY(sv)); | |
5341 | break; | |
5342 | case SVt_PVCV: | |
5343 | del_XPVCV(SvANY(sv)); | |
5344 | break; | |
5345 | case SVt_PVGV: | |
5346 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
5347 | /* code duplication for increased performance. */ |
5348 | SvFLAGS(sv) &= SVf_BREAK; | |
5349 | SvFLAGS(sv) |= SVTYPEMASK; | |
5350 | /* decrease refcount of the stash that owns this GV, if any */ | |
5351 | if (stash) | |
5352 | SvREFCNT_dec(stash); | |
5353 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
5354 | case SVt_PVBM: |
5355 | del_XPVBM(SvANY(sv)); | |
5356 | break; | |
5357 | case SVt_PVFM: | |
5358 | del_XPVFM(SvANY(sv)); | |
5359 | break; | |
8990e307 LW |
5360 | case SVt_PVIO: |
5361 | del_XPVIO(SvANY(sv)); | |
5362 | break; | |
79072805 | 5363 | } |
a0d0e21e | 5364 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 5365 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
5366 | } |
5367 | ||
645c22ef DM |
5368 | /* |
5369 | =for apidoc sv_newref | |
5370 | ||
5371 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5372 | instead. | |
5373 | ||
5374 | =cut | |
5375 | */ | |
5376 | ||
79072805 | 5377 | SV * |
864dbfa3 | 5378 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5379 | { |
463ee0b2 | 5380 | if (sv) |
dce16143 | 5381 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
5382 | return sv; |
5383 | } | |
5384 | ||
c461cf8f JH |
5385 | /* |
5386 | =for apidoc sv_free | |
5387 | ||
645c22ef DM |
5388 | Decrement an SV's reference count, and if it drops to zero, call |
5389 | C<sv_clear> to invoke destructors and free up any memory used by | |
5390 | the body; finally, deallocate the SV's head itself. | |
5391 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5392 | |
5393 | =cut | |
5394 | */ | |
5395 | ||
79072805 | 5396 | void |
864dbfa3 | 5397 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5398 | { |
dce16143 MB |
5399 | int refcount_is_zero; |
5400 | ||
79072805 LW |
5401 | if (!sv) |
5402 | return; | |
a0d0e21e LW |
5403 | if (SvREFCNT(sv) == 0) { |
5404 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5405 | /* this SV's refcnt has been artificially decremented to |
5406 | * trigger cleanup */ | |
a0d0e21e | 5407 | return; |
3280af22 | 5408 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5409 | return; |
d689ffdd JP |
5410 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5411 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5412 | SvREFCNT(sv) = (~(U32)0)/2; | |
5413 | return; | |
5414 | } | |
0453d815 | 5415 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 5416 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Attempt to free unreferenced scalar"); |
79072805 LW |
5417 | return; |
5418 | } | |
dce16143 | 5419 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
b881518d | 5420 | if (!refcount_is_zero) |
8990e307 | 5421 | return; |
463ee0b2 LW |
5422 | #ifdef DEBUGGING |
5423 | if (SvTEMP(sv)) { | |
0453d815 | 5424 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 5425 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
1d7c1841 GS |
5426 | "Attempt to free temp prematurely: SV 0x%"UVxf, |
5427 | PTR2UV(sv)); | |
79072805 | 5428 | return; |
79072805 | 5429 | } |
463ee0b2 | 5430 | #endif |
d689ffdd JP |
5431 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5432 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5433 | SvREFCNT(sv) = (~(U32)0)/2; | |
5434 | return; | |
5435 | } | |
79072805 | 5436 | sv_clear(sv); |
477f5d66 CS |
5437 | if (! SvREFCNT(sv)) |
5438 | del_SV(sv); | |
79072805 LW |
5439 | } |
5440 | ||
954c1994 GS |
5441 | /* |
5442 | =for apidoc sv_len | |
5443 | ||
645c22ef DM |
5444 | Returns the length of the string in the SV. Handles magic and type |
5445 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5446 | |
5447 | =cut | |
5448 | */ | |
5449 | ||
79072805 | 5450 | STRLEN |
864dbfa3 | 5451 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5452 | { |
463ee0b2 | 5453 | STRLEN len; |
79072805 LW |
5454 | |
5455 | if (!sv) | |
5456 | return 0; | |
5457 | ||
8990e307 | 5458 | if (SvGMAGICAL(sv)) |
565764a8 | 5459 | len = mg_length(sv); |
8990e307 | 5460 | else |
497b47a8 | 5461 | (void)SvPV(sv, len); |
463ee0b2 | 5462 | return len; |
79072805 LW |
5463 | } |
5464 | ||
c461cf8f JH |
5465 | /* |
5466 | =for apidoc sv_len_utf8 | |
5467 | ||
5468 | Returns the number of characters in the string in an SV, counting wide | |
645c22ef | 5469 | UTF8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5470 | |
5471 | =cut | |
5472 | */ | |
5473 | ||
a0ed51b3 | 5474 | STRLEN |
864dbfa3 | 5475 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5476 | { |
a0ed51b3 LW |
5477 | if (!sv) |
5478 | return 0; | |
5479 | ||
a0ed51b3 | 5480 | if (SvGMAGICAL(sv)) |
b76347f2 | 5481 | return mg_length(sv); |
a0ed51b3 | 5482 | else |
b76347f2 JH |
5483 | { |
5484 | STRLEN len; | |
5485 | U8 *s = (U8*)SvPV(sv, len); | |
5486 | ||
d6efbbad | 5487 | return Perl_utf8_length(aTHX_ s, s + len); |
a0ed51b3 | 5488 | } |
a0ed51b3 LW |
5489 | } |
5490 | ||
645c22ef DM |
5491 | /* |
5492 | =for apidoc sv_pos_u2b | |
5493 | ||
5494 | Converts the value pointed to by offsetp from a count of UTF8 chars from | |
5495 | the start of the string, to a count of the equivalent number of bytes; if | |
5496 | lenp is non-zero, it does the same to lenp, but this time starting from | |
5497 | the offset, rather than from the start of the string. Handles magic and | |
5498 | type coercion. | |
5499 | ||
5500 | =cut | |
5501 | */ | |
5502 | ||
a0ed51b3 | 5503 | void |
864dbfa3 | 5504 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 5505 | { |
dfe13c55 GS |
5506 | U8 *start; |
5507 | U8 *s; | |
5508 | U8 *send; | |
a0ed51b3 LW |
5509 | I32 uoffset = *offsetp; |
5510 | STRLEN len; | |
5511 | ||
5512 | if (!sv) | |
5513 | return; | |
5514 | ||
dfe13c55 | 5515 | start = s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
5516 | send = s + len; |
5517 | while (s < send && uoffset--) | |
5518 | s += UTF8SKIP(s); | |
bb40f870 GA |
5519 | if (s >= send) |
5520 | s = send; | |
a0ed51b3 LW |
5521 | *offsetp = s - start; |
5522 | if (lenp) { | |
5523 | I32 ulen = *lenp; | |
5524 | start = s; | |
5525 | while (s < send && ulen--) | |
5526 | s += UTF8SKIP(s); | |
bb40f870 GA |
5527 | if (s >= send) |
5528 | s = send; | |
a0ed51b3 LW |
5529 | *lenp = s - start; |
5530 | } | |
5531 | return; | |
5532 | } | |
5533 | ||
645c22ef DM |
5534 | /* |
5535 | =for apidoc sv_pos_b2u | |
5536 | ||
5537 | Converts the value pointed to by offsetp from a count of bytes from the | |
5538 | start of the string, to a count of the equivalent number of UTF8 chars. | |
5539 | Handles magic and type coercion. | |
5540 | ||
5541 | =cut | |
5542 | */ | |
5543 | ||
a0ed51b3 | 5544 | void |
864dbfa3 | 5545 | Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp) |
a0ed51b3 | 5546 | { |
dfe13c55 GS |
5547 | U8 *s; |
5548 | U8 *send; | |
a0ed51b3 LW |
5549 | STRLEN len; |
5550 | ||
5551 | if (!sv) | |
5552 | return; | |
5553 | ||
dfe13c55 | 5554 | s = (U8*)SvPV(sv, len); |
eb160463 | 5555 | if ((I32)len < *offsetp) |
a0dbb045 | 5556 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
a0ed51b3 LW |
5557 | send = s + *offsetp; |
5558 | len = 0; | |
5559 | while (s < send) { | |
cc07378b JH |
5560 | STRLEN n = 1; |
5561 | /* Call utf8n_to_uvchr() to validate the sequence | |
5562 | * (unless a simple non-UTF character) */ | |
5563 | if (!UTF8_IS_INVARIANT(*s)) | |
5564 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
2b9d42f0 | 5565 | if (n > 0) { |
a0dbb045 JH |
5566 | s += n; |
5567 | len++; | |
5568 | } | |
5569 | else | |
5570 | break; | |
a0ed51b3 LW |
5571 | } |
5572 | *offsetp = len; | |
5573 | return; | |
5574 | } | |
5575 | ||
954c1994 GS |
5576 | /* |
5577 | =for apidoc sv_eq | |
5578 | ||
5579 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
5580 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5581 | coerce its args to strings if necessary. | |
954c1994 GS |
5582 | |
5583 | =cut | |
5584 | */ | |
5585 | ||
79072805 | 5586 | I32 |
e01b9e88 | 5587 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 LW |
5588 | { |
5589 | char *pv1; | |
463ee0b2 | 5590 | STRLEN cur1; |
79072805 | 5591 | char *pv2; |
463ee0b2 | 5592 | STRLEN cur2; |
e01b9e88 | 5593 | I32 eq = 0; |
553e1bcc AT |
5594 | char *tpv = Nullch; |
5595 | SV* svrecode = Nullsv; | |
79072805 | 5596 | |
e01b9e88 | 5597 | if (!sv1) { |
79072805 LW |
5598 | pv1 = ""; |
5599 | cur1 = 0; | |
5600 | } | |
463ee0b2 | 5601 | else |
e01b9e88 | 5602 | pv1 = SvPV(sv1, cur1); |
79072805 | 5603 | |
e01b9e88 SC |
5604 | if (!sv2){ |
5605 | pv2 = ""; | |
5606 | cur2 = 0; | |
92d29cee | 5607 | } |
e01b9e88 SC |
5608 | else |
5609 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5610 | |
cf48d248 | 5611 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5612 | /* Differing utf8ness. |
5613 | * Do not UTF8size the comparands as a side-effect. */ | |
5614 | if (PL_encoding) { | |
5615 | if (SvUTF8(sv1)) { | |
553e1bcc AT |
5616 | svrecode = newSVpvn(pv2, cur2); |
5617 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5618 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
5619 | } |
5620 | else { | |
553e1bcc AT |
5621 | svrecode = newSVpvn(pv1, cur1); |
5622 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5623 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
5624 | } |
5625 | /* Now both are in UTF-8. */ | |
5626 | if (cur1 != cur2) | |
5627 | return FALSE; | |
5628 | } | |
5629 | else { | |
5630 | bool is_utf8 = TRUE; | |
5631 | ||
5632 | if (SvUTF8(sv1)) { | |
5633 | /* sv1 is the UTF-8 one, | |
5634 | * if is equal it must be downgrade-able */ | |
5635 | char *pv = (char*)bytes_from_utf8((U8*)pv1, | |
5636 | &cur1, &is_utf8); | |
5637 | if (pv != pv1) | |
553e1bcc | 5638 | pv1 = tpv = pv; |
799ef3cb JH |
5639 | } |
5640 | else { | |
5641 | /* sv2 is the UTF-8 one, | |
5642 | * if is equal it must be downgrade-able */ | |
5643 | char *pv = (char *)bytes_from_utf8((U8*)pv2, | |
5644 | &cur2, &is_utf8); | |
5645 | if (pv != pv2) | |
553e1bcc | 5646 | pv2 = tpv = pv; |
799ef3cb JH |
5647 | } |
5648 | if (is_utf8) { | |
5649 | /* Downgrade not possible - cannot be eq */ | |
5650 | return FALSE; | |
5651 | } | |
5652 | } | |
cf48d248 JH |
5653 | } |
5654 | ||
5655 | if (cur1 == cur2) | |
765f542d | 5656 | eq = (pv1 == pv2) || memEQ(pv1, pv2, cur1); |
e01b9e88 | 5657 | |
553e1bcc AT |
5658 | if (svrecode) |
5659 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5660 | |
553e1bcc AT |
5661 | if (tpv) |
5662 | Safefree(tpv); | |
cf48d248 | 5663 | |
e01b9e88 | 5664 | return eq; |
79072805 LW |
5665 | } |
5666 | ||
954c1994 GS |
5667 | /* |
5668 | =for apidoc sv_cmp | |
5669 | ||
5670 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
5671 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
5672 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5673 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
5674 | |
5675 | =cut | |
5676 | */ | |
5677 | ||
79072805 | 5678 | I32 |
e01b9e88 | 5679 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5680 | { |
560a288e | 5681 | STRLEN cur1, cur2; |
553e1bcc | 5682 | char *pv1, *pv2, *tpv = Nullch; |
cf48d248 | 5683 | I32 cmp; |
553e1bcc | 5684 | SV *svrecode = Nullsv; |
560a288e | 5685 | |
e01b9e88 SC |
5686 | if (!sv1) { |
5687 | pv1 = ""; | |
560a288e GS |
5688 | cur1 = 0; |
5689 | } | |
e01b9e88 SC |
5690 | else |
5691 | pv1 = SvPV(sv1, cur1); | |
560a288e | 5692 | |
553e1bcc | 5693 | if (!sv2) { |
e01b9e88 | 5694 | pv2 = ""; |
560a288e GS |
5695 | cur2 = 0; |
5696 | } | |
e01b9e88 SC |
5697 | else |
5698 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5699 | |
cf48d248 | 5700 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5701 | /* Differing utf8ness. |
5702 | * Do not UTF8size the comparands as a side-effect. */ | |
cf48d248 | 5703 | if (SvUTF8(sv1)) { |
799ef3cb | 5704 | if (PL_encoding) { |
553e1bcc AT |
5705 | svrecode = newSVpvn(pv2, cur2); |
5706 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5707 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
5708 | } |
5709 | else { | |
553e1bcc | 5710 | pv2 = tpv = (char*)bytes_to_utf8((U8*)pv2, &cur2); |
799ef3cb | 5711 | } |
cf48d248 JH |
5712 | } |
5713 | else { | |
799ef3cb | 5714 | if (PL_encoding) { |
553e1bcc AT |
5715 | svrecode = newSVpvn(pv1, cur1); |
5716 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5717 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
5718 | } |
5719 | else { | |
553e1bcc | 5720 | pv1 = tpv = (char*)bytes_to_utf8((U8*)pv1, &cur1); |
799ef3cb | 5721 | } |
cf48d248 JH |
5722 | } |
5723 | } | |
5724 | ||
e01b9e88 | 5725 | if (!cur1) { |
cf48d248 | 5726 | cmp = cur2 ? -1 : 0; |
e01b9e88 | 5727 | } else if (!cur2) { |
cf48d248 JH |
5728 | cmp = 1; |
5729 | } else { | |
5730 | I32 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); | |
e01b9e88 SC |
5731 | |
5732 | if (retval) { | |
cf48d248 | 5733 | cmp = retval < 0 ? -1 : 1; |
e01b9e88 | 5734 | } else if (cur1 == cur2) { |
cf48d248 JH |
5735 | cmp = 0; |
5736 | } else { | |
5737 | cmp = cur1 < cur2 ? -1 : 1; | |
e01b9e88 | 5738 | } |
cf48d248 | 5739 | } |
16660edb | 5740 | |
553e1bcc AT |
5741 | if (svrecode) |
5742 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5743 | |
553e1bcc AT |
5744 | if (tpv) |
5745 | Safefree(tpv); | |
cf48d248 JH |
5746 | |
5747 | return cmp; | |
bbce6d69 | 5748 | } |
16660edb | 5749 | |
c461cf8f JH |
5750 | /* |
5751 | =for apidoc sv_cmp_locale | |
5752 | ||
645c22ef DM |
5753 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
5754 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
5755 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
5756 | |
5757 | =cut | |
5758 | */ | |
5759 | ||
bbce6d69 | 5760 | I32 |
864dbfa3 | 5761 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 5762 | { |
36477c24 | 5763 | #ifdef USE_LOCALE_COLLATE |
16660edb | 5764 | |
bbce6d69 | 5765 | char *pv1, *pv2; |
5766 | STRLEN len1, len2; | |
5767 | I32 retval; | |
16660edb | 5768 | |
3280af22 | 5769 | if (PL_collation_standard) |
bbce6d69 | 5770 | goto raw_compare; |
16660edb | 5771 | |
bbce6d69 | 5772 | len1 = 0; |
8ac85365 | 5773 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 5774 | len2 = 0; |
8ac85365 | 5775 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 5776 | |
bbce6d69 | 5777 | if (!pv1 || !len1) { |
5778 | if (pv2 && len2) | |
5779 | return -1; | |
5780 | else | |
5781 | goto raw_compare; | |
5782 | } | |
5783 | else { | |
5784 | if (!pv2 || !len2) | |
5785 | return 1; | |
5786 | } | |
16660edb | 5787 | |
bbce6d69 | 5788 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 5789 | |
bbce6d69 | 5790 | if (retval) |
16660edb | 5791 | return retval < 0 ? -1 : 1; |
5792 | ||
bbce6d69 | 5793 | /* |
5794 | * When the result of collation is equality, that doesn't mean | |
5795 | * that there are no differences -- some locales exclude some | |
5796 | * characters from consideration. So to avoid false equalities, | |
5797 | * we use the raw string as a tiebreaker. | |
5798 | */ | |
16660edb | 5799 | |
bbce6d69 | 5800 | raw_compare: |
5801 | /* FALL THROUGH */ | |
16660edb | 5802 | |
36477c24 | 5803 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 5804 | |
bbce6d69 | 5805 | return sv_cmp(sv1, sv2); |
5806 | } | |
79072805 | 5807 | |
645c22ef | 5808 | |
36477c24 | 5809 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 5810 | |
7a4c00b4 | 5811 | /* |
645c22ef DM |
5812 | =for apidoc sv_collxfrm |
5813 | ||
5814 | Add Collate Transform magic to an SV if it doesn't already have it. | |
5815 | ||
5816 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
5817 | scalar data of the variable, but transformed to such a format that a normal | |
5818 | memory comparison can be used to compare the data according to the locale | |
5819 | settings. | |
5820 | ||
5821 | =cut | |
5822 | */ | |
5823 | ||
bbce6d69 | 5824 | char * |
864dbfa3 | 5825 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 5826 | { |
7a4c00b4 | 5827 | MAGIC *mg; |
16660edb | 5828 | |
14befaf4 | 5829 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 5830 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 5831 | char *s, *xf; |
5832 | STRLEN len, xlen; | |
5833 | ||
7a4c00b4 | 5834 | if (mg) |
5835 | Safefree(mg->mg_ptr); | |
bbce6d69 | 5836 | s = SvPV(sv, len); |
5837 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 5838 | if (SvREADONLY(sv)) { |
5839 | SAVEFREEPV(xf); | |
5840 | *nxp = xlen; | |
3280af22 | 5841 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 5842 | } |
7a4c00b4 | 5843 | if (! mg) { |
14befaf4 DM |
5844 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
5845 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 5846 | assert(mg); |
bbce6d69 | 5847 | } |
7a4c00b4 | 5848 | mg->mg_ptr = xf; |
565764a8 | 5849 | mg->mg_len = xlen; |
7a4c00b4 | 5850 | } |
5851 | else { | |
ff0cee69 | 5852 | if (mg) { |
5853 | mg->mg_ptr = NULL; | |
565764a8 | 5854 | mg->mg_len = -1; |
ff0cee69 | 5855 | } |
bbce6d69 | 5856 | } |
5857 | } | |
7a4c00b4 | 5858 | if (mg && mg->mg_ptr) { |
565764a8 | 5859 | *nxp = mg->mg_len; |
3280af22 | 5860 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 5861 | } |
5862 | else { | |
5863 | *nxp = 0; | |
5864 | return NULL; | |
16660edb | 5865 | } |
79072805 LW |
5866 | } |
5867 | ||
36477c24 | 5868 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 5869 | |
c461cf8f JH |
5870 | /* |
5871 | =for apidoc sv_gets | |
5872 | ||
5873 | Get a line from the filehandle and store it into the SV, optionally | |
5874 | appending to the currently-stored string. | |
5875 | ||
5876 | =cut | |
5877 | */ | |
5878 | ||
79072805 | 5879 | char * |
864dbfa3 | 5880 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 5881 | { |
c07a80fd | 5882 | char *rsptr; |
5883 | STRLEN rslen; | |
5884 | register STDCHAR rslast; | |
5885 | register STDCHAR *bp; | |
5886 | register I32 cnt; | |
9c5ffd7c | 5887 | I32 i = 0; |
8bfdd7d9 | 5888 | I32 rspara = 0; |
c07a80fd | 5889 | |
765f542d NC |
5890 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
5891 | /* XXX. If you make this PVIV, then copy on write can copy scalars read | |
5892 | from <>. | |
5893 | However, perlbench says it's slower, because the existing swipe code | |
5894 | is faster than copy on write. | |
5895 | Swings and roundabouts. */ | |
6fc92669 | 5896 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 5897 | |
ff68c719 | 5898 | SvSCREAM_off(sv); |
c07a80fd | 5899 | |
8bfdd7d9 HS |
5900 | if (PL_curcop == &PL_compiling) { |
5901 | /* we always read code in line mode */ | |
5902 | rsptr = "\n"; | |
5903 | rslen = 1; | |
5904 | } | |
5905 | else if (RsSNARF(PL_rs)) { | |
c07a80fd | 5906 | rsptr = NULL; |
5907 | rslen = 0; | |
5908 | } | |
3280af22 | 5909 | else if (RsRECORD(PL_rs)) { |
5b2b9c68 HM |
5910 | I32 recsize, bytesread; |
5911 | char *buffer; | |
5912 | ||
5913 | /* Grab the size of the record we're getting */ | |
3280af22 | 5914 | recsize = SvIV(SvRV(PL_rs)); |
5b2b9c68 | 5915 | (void)SvPOK_only(sv); /* Validate pointer */ |
eb160463 | 5916 | buffer = SvGROW(sv, (STRLEN)(recsize + 1)); |
5b2b9c68 HM |
5917 | /* Go yank in */ |
5918 | #ifdef VMS | |
5919 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
5920 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
5921 | /* doing, but we've got no other real choice */ | |
5922 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); | |
5923 | #else | |
5924 | bytesread = PerlIO_read(fp, buffer, recsize); | |
5925 | #endif | |
5926 | SvCUR_set(sv, bytesread); | |
e670df4e | 5927 | buffer[bytesread] = '\0'; |
7d59b7e4 NIS |
5928 | if (PerlIO_isutf8(fp)) |
5929 | SvUTF8_on(sv); | |
5930 | else | |
5931 | SvUTF8_off(sv); | |
5b2b9c68 HM |
5932 | return(SvCUR(sv) ? SvPVX(sv) : Nullch); |
5933 | } | |
3280af22 | 5934 | else if (RsPARA(PL_rs)) { |
c07a80fd | 5935 | rsptr = "\n\n"; |
5936 | rslen = 2; | |
8bfdd7d9 | 5937 | rspara = 1; |
c07a80fd | 5938 | } |
7d59b7e4 NIS |
5939 | else { |
5940 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
5941 | if (PerlIO_isutf8(fp)) { | |
5942 | rsptr = SvPVutf8(PL_rs, rslen); | |
5943 | } | |
5944 | else { | |
5945 | if (SvUTF8(PL_rs)) { | |
5946 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
5947 | Perl_croak(aTHX_ "Wide character in $/"); | |
5948 | } | |
5949 | } | |
5950 | rsptr = SvPV(PL_rs, rslen); | |
5951 | } | |
5952 | } | |
5953 | ||
c07a80fd | 5954 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
5955 | ||
8bfdd7d9 | 5956 | if (rspara) { /* have to do this both before and after */ |
79072805 | 5957 | do { /* to make sure file boundaries work right */ |
760ac839 | 5958 | if (PerlIO_eof(fp)) |
a0d0e21e | 5959 | return 0; |
760ac839 | 5960 | i = PerlIO_getc(fp); |
79072805 | 5961 | if (i != '\n') { |
a0d0e21e LW |
5962 | if (i == -1) |
5963 | return 0; | |
760ac839 | 5964 | PerlIO_ungetc(fp,i); |
79072805 LW |
5965 | break; |
5966 | } | |
5967 | } while (i != EOF); | |
5968 | } | |
c07a80fd | 5969 | |
760ac839 LW |
5970 | /* See if we know enough about I/O mechanism to cheat it ! */ |
5971 | ||
5972 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 5973 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
5974 | enough here - and may even be a macro allowing compile |
5975 | time optimization. | |
5976 | */ | |
5977 | ||
5978 | if (PerlIO_fast_gets(fp)) { | |
5979 | ||
5980 | /* | |
5981 | * We're going to steal some values from the stdio struct | |
5982 | * and put EVERYTHING in the innermost loop into registers. | |
5983 | */ | |
5984 | register STDCHAR *ptr; | |
5985 | STRLEN bpx; | |
5986 | I32 shortbuffered; | |
5987 | ||
16660edb | 5988 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
5989 | /* An ungetc()d char is handled separately from the regular | |
5990 | * buffer, so we getc() it back out and stuff it in the buffer. | |
5991 | */ | |
5992 | i = PerlIO_getc(fp); | |
5993 | if (i == EOF) return 0; | |
5994 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
5995 | (*fp)->_cnt++; | |
5996 | #endif | |
c07a80fd | 5997 | |
c2960299 | 5998 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 5999 | |
a20bf0c3 | 6000 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
a0d0e21e | 6001 | (void)SvPOK_only(sv); /* validate pointer */ |
eb160463 GS |
6002 | if ((I32)(SvLEN(sv) - append) <= cnt + 1) { /* make sure we have the room */ |
6003 | if (cnt > 80 && (I32)SvLEN(sv) > append) { | |
79072805 LW |
6004 | shortbuffered = cnt - SvLEN(sv) + append + 1; |
6005 | cnt -= shortbuffered; | |
6006 | } | |
6007 | else { | |
6008 | shortbuffered = 0; | |
bbce6d69 | 6009 | /* remember that cnt can be negative */ |
eb160463 | 6010 | SvGROW(sv, (STRLEN)(append + (cnt <= 0 ? 2 : (cnt + 1)))); |
79072805 LW |
6011 | } |
6012 | } | |
6013 | else | |
6014 | shortbuffered = 0; | |
c07a80fd | 6015 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 6016 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 6017 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6018 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 6019 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
ba7abf9d | 6020 | "Screamer: entering: PerlIO * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6021 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6022 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
6023 | for (;;) { |
6024 | screamer: | |
93a17b20 | 6025 | if (cnt > 0) { |
c07a80fd | 6026 | if (rslen) { |
760ac839 LW |
6027 | while (cnt > 0) { /* this | eat */ |
6028 | cnt--; | |
c07a80fd | 6029 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
6030 | goto thats_all_folks; /* screams | sed :-) */ | |
6031 | } | |
6032 | } | |
6033 | else { | |
1c846c1f NIS |
6034 | Copy(ptr, bp, cnt, char); /* this | eat */ |
6035 | bp += cnt; /* screams | dust */ | |
c07a80fd | 6036 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 6037 | cnt = 0; |
93a17b20 | 6038 | } |
79072805 LW |
6039 | } |
6040 | ||
748a9306 | 6041 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
6042 | cnt = shortbuffered; |
6043 | shortbuffered = 0; | |
c07a80fd | 6044 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
6045 | SvCUR_set(sv, bpx); |
6046 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 6047 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
6048 | continue; |
6049 | } | |
6050 | ||
16660edb | 6051 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
6052 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
6053 | PTR2UV(ptr),(long)cnt)); | |
cc00df79 | 6054 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* deregisterize cnt and ptr */ |
ba7abf9d | 6055 | #if 0 |
16660edb | 6056 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6057 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6058 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6059 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6060 | #endif |
1c846c1f | 6061 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 6062 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
6063 | another abstraction. */ | |
760ac839 | 6064 | i = PerlIO_getc(fp); /* get more characters */ |
ba7abf9d | 6065 | #if 0 |
16660edb | 6066 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6067 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6068 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6069 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6070 | #endif |
a20bf0c3 JH |
6071 | cnt = PerlIO_get_cnt(fp); |
6072 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 6073 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6074 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 6075 | |
748a9306 LW |
6076 | if (i == EOF) /* all done for ever? */ |
6077 | goto thats_really_all_folks; | |
6078 | ||
c07a80fd | 6079 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
6080 | SvCUR_set(sv, bpx); |
6081 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 6082 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
6083 | ||
eb160463 | 6084 | *bp++ = (STDCHAR)i; /* store character from PerlIO_getc */ |
79072805 | 6085 | |
c07a80fd | 6086 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 6087 | goto thats_all_folks; |
79072805 LW |
6088 | } |
6089 | ||
6090 | thats_all_folks: | |
eb160463 | 6091 | if ((rslen > 1 && (STRLEN)(bp - (STDCHAR*)SvPVX(sv)) < rslen) || |
36477c24 | 6092 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 6093 | goto screamer; /* go back to the fray */ |
79072805 LW |
6094 | thats_really_all_folks: |
6095 | if (shortbuffered) | |
6096 | cnt += shortbuffered; | |
16660edb | 6097 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6098 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
cc00df79 | 6099 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 6100 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6101 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6102 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6103 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 6104 | *bp = '\0'; |
760ac839 | 6105 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 6106 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 6107 | "Screamer: done, len=%ld, string=|%.*s|\n", |
6108 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
6109 | } |
6110 | else | |
79072805 | 6111 | { |
4d2c4e07 | 6112 | #ifndef EPOC |
760ac839 | 6113 | /*The big, slow, and stupid way */ |
c07a80fd | 6114 | STDCHAR buf[8192]; |
4d2c4e07 OF |
6115 | #else |
6116 | /* Need to work around EPOC SDK features */ | |
6117 | /* On WINS: MS VC5 generates calls to _chkstk, */ | |
6118 | /* if a `large' stack frame is allocated */ | |
6119 | /* gcc on MARM does not generate calls like these */ | |
6120 | STDCHAR buf[1024]; | |
6121 | #endif | |
79072805 | 6122 | |
760ac839 | 6123 | screamer2: |
c07a80fd | 6124 | if (rslen) { |
760ac839 LW |
6125 | register STDCHAR *bpe = buf + sizeof(buf); |
6126 | bp = buf; | |
eb160463 | 6127 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = (STDCHAR)i) != rslast && bp < bpe) |
760ac839 LW |
6128 | ; /* keep reading */ |
6129 | cnt = bp - buf; | |
c07a80fd | 6130 | } |
6131 | else { | |
760ac839 | 6132 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 6133 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
6134 | * both args of ?: operator, causing EOF to change into 255 | |
6135 | */ | |
37be0adf | 6136 | if (cnt > 0) |
cbe9e203 JH |
6137 | i = (U8)buf[cnt - 1]; |
6138 | else | |
37be0adf | 6139 | i = EOF; |
c07a80fd | 6140 | } |
79072805 | 6141 | |
cbe9e203 JH |
6142 | if (cnt < 0) |
6143 | cnt = 0; /* we do need to re-set the sv even when cnt <= 0 */ | |
6144 | if (append) | |
6145 | sv_catpvn(sv, (char *) buf, cnt); | |
6146 | else | |
6147 | sv_setpvn(sv, (char *) buf, cnt); | |
c07a80fd | 6148 | |
6149 | if (i != EOF && /* joy */ | |
6150 | (!rslen || | |
6151 | SvCUR(sv) < rslen || | |
36477c24 | 6152 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
6153 | { |
6154 | append = -1; | |
63e4d877 CS |
6155 | /* |
6156 | * If we're reading from a TTY and we get a short read, | |
6157 | * indicating that the user hit his EOF character, we need | |
6158 | * to notice it now, because if we try to read from the TTY | |
6159 | * again, the EOF condition will disappear. | |
6160 | * | |
6161 | * The comparison of cnt to sizeof(buf) is an optimization | |
6162 | * that prevents unnecessary calls to feof(). | |
6163 | * | |
6164 | * - jik 9/25/96 | |
6165 | */ | |
6166 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
6167 | goto screamer2; | |
79072805 LW |
6168 | } |
6169 | } | |
6170 | ||
8bfdd7d9 | 6171 | if (rspara) { /* have to do this both before and after */ |
c07a80fd | 6172 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 6173 | i = PerlIO_getc(fp); |
79072805 | 6174 | if (i != '\n') { |
760ac839 | 6175 | PerlIO_ungetc(fp,i); |
79072805 LW |
6176 | break; |
6177 | } | |
6178 | } | |
6179 | } | |
c07a80fd | 6180 | |
7d59b7e4 NIS |
6181 | if (PerlIO_isutf8(fp)) |
6182 | SvUTF8_on(sv); | |
6183 | else | |
6184 | SvUTF8_off(sv); | |
6185 | ||
c07a80fd | 6186 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
6187 | } |
6188 | ||
954c1994 GS |
6189 | /* |
6190 | =for apidoc sv_inc | |
6191 | ||
645c22ef DM |
6192 | Auto-increment of the value in the SV, doing string to numeric conversion |
6193 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6194 | |
6195 | =cut | |
6196 | */ | |
6197 | ||
79072805 | 6198 | void |
864dbfa3 | 6199 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
6200 | { |
6201 | register char *d; | |
463ee0b2 | 6202 | int flags; |
79072805 LW |
6203 | |
6204 | if (!sv) | |
6205 | return; | |
b23a5f78 GB |
6206 | if (SvGMAGICAL(sv)) |
6207 | mg_get(sv); | |
ed6116ce | 6208 | if (SvTHINKFIRST(sv)) { |
765f542d NC |
6209 | if (SvIsCOW(sv)) |
6210 | sv_force_normal_flags(sv, 0); | |
0f15f207 | 6211 | if (SvREADONLY(sv)) { |
3280af22 | 6212 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 6213 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6214 | } |
a0d0e21e | 6215 | if (SvROK(sv)) { |
b5be31e9 | 6216 | IV i; |
9e7bc3e8 JD |
6217 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
6218 | return; | |
56431972 | 6219 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6220 | sv_unref(sv); |
6221 | sv_setiv(sv, i); | |
a0d0e21e | 6222 | } |
ed6116ce | 6223 | } |
8990e307 | 6224 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6225 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
6226 | /* It's (privately or publicly) a float, but not tested as an | |
6227 | integer, so test it to see. */ | |
d460ef45 | 6228 | (void) SvIV(sv); |
28e5dec8 JH |
6229 | flags = SvFLAGS(sv); |
6230 | } | |
6231 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
6232 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6233 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6234 | oops_its_int: |
59d8ce62 | 6235 | #endif |
25da4f38 IZ |
6236 | if (SvIsUV(sv)) { |
6237 | if (SvUVX(sv) == UV_MAX) | |
a1e868e7 | 6238 | sv_setnv(sv, UV_MAX_P1); |
25da4f38 IZ |
6239 | else |
6240 | (void)SvIOK_only_UV(sv); | |
6241 | ++SvUVX(sv); | |
6242 | } else { | |
6243 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 6244 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
6245 | else { |
6246 | (void)SvIOK_only(sv); | |
6247 | ++SvIVX(sv); | |
1c846c1f | 6248 | } |
55497cff | 6249 | } |
79072805 LW |
6250 | return; |
6251 | } | |
28e5dec8 JH |
6252 | if (flags & SVp_NOK) { |
6253 | (void)SvNOK_only(sv); | |
6254 | SvNVX(sv) += 1.0; | |
6255 | return; | |
6256 | } | |
6257 | ||
8990e307 | 6258 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
28e5dec8 JH |
6259 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
6260 | sv_upgrade(sv, SVt_IV); | |
6261 | (void)SvIOK_only(sv); | |
6262 | SvIVX(sv) = 1; | |
79072805 LW |
6263 | return; |
6264 | } | |
463ee0b2 | 6265 | d = SvPVX(sv); |
79072805 LW |
6266 | while (isALPHA(*d)) d++; |
6267 | while (isDIGIT(*d)) d++; | |
6268 | if (*d) { | |
28e5dec8 | 6269 | #ifdef PERL_PRESERVE_IVUV |
d1be9408 | 6270 | /* Got to punt this as an integer if needs be, but we don't issue |
28e5dec8 JH |
6271 | warnings. Probably ought to make the sv_iv_please() that does |
6272 | the conversion if possible, and silently. */ | |
c2988b20 | 6273 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6274 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6275 | /* Need to try really hard to see if it's an integer. | |
6276 | 9.22337203685478e+18 is an integer. | |
6277 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6278 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
6279 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
6280 | or we go insane. */ | |
d460ef45 | 6281 | |
28e5dec8 JH |
6282 | (void) sv_2iv(sv); |
6283 | if (SvIOK(sv)) | |
6284 | goto oops_its_int; | |
6285 | ||
6286 | /* sv_2iv *should* have made this an NV */ | |
6287 | if (flags & SVp_NOK) { | |
6288 | (void)SvNOK_only(sv); | |
6289 | SvNVX(sv) += 1.0; | |
6290 | return; | |
6291 | } | |
6292 | /* I don't think we can get here. Maybe I should assert this | |
6293 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6294 | Fall through. */ | |
6295 | #if defined(USE_LONG_DOUBLE) | |
6296 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_inc punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"PERL_PRIgldbl"\n", | |
6297 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6298 | #else | |
1779d84d | 6299 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_inc punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
28e5dec8 JH |
6300 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
6301 | #endif | |
6302 | } | |
6303 | #endif /* PERL_PRESERVE_IVUV */ | |
6304 | sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); | |
79072805 LW |
6305 | return; |
6306 | } | |
6307 | d--; | |
463ee0b2 | 6308 | while (d >= SvPVX(sv)) { |
79072805 LW |
6309 | if (isDIGIT(*d)) { |
6310 | if (++*d <= '9') | |
6311 | return; | |
6312 | *(d--) = '0'; | |
6313 | } | |
6314 | else { | |
9d116dd7 JH |
6315 | #ifdef EBCDIC |
6316 | /* MKS: The original code here died if letters weren't consecutive. | |
6317 | * at least it didn't have to worry about non-C locales. The | |
6318 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 6319 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
6320 | * [A-Za-z] are accepted by isALPHA in the C locale. |
6321 | */ | |
6322 | if (*d != 'z' && *d != 'Z') { | |
6323 | do { ++*d; } while (!isALPHA(*d)); | |
6324 | return; | |
6325 | } | |
6326 | *(d--) -= 'z' - 'a'; | |
6327 | #else | |
79072805 LW |
6328 | ++*d; |
6329 | if (isALPHA(*d)) | |
6330 | return; | |
6331 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 6332 | #endif |
79072805 LW |
6333 | } |
6334 | } | |
6335 | /* oh,oh, the number grew */ | |
6336 | SvGROW(sv, SvCUR(sv) + 2); | |
6337 | SvCUR(sv)++; | |
463ee0b2 | 6338 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
6339 | *d = d[-1]; |
6340 | if (isDIGIT(d[1])) | |
6341 | *d = '1'; | |
6342 | else | |
6343 | *d = d[1]; | |
6344 | } | |
6345 | ||
954c1994 GS |
6346 | /* |
6347 | =for apidoc sv_dec | |
6348 | ||
645c22ef DM |
6349 | Auto-decrement of the value in the SV, doing string to numeric conversion |
6350 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6351 | |
6352 | =cut | |
6353 | */ | |
6354 | ||
79072805 | 6355 | void |
864dbfa3 | 6356 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 6357 | { |
463ee0b2 LW |
6358 | int flags; |
6359 | ||
79072805 LW |
6360 | if (!sv) |
6361 | return; | |
b23a5f78 GB |
6362 | if (SvGMAGICAL(sv)) |
6363 | mg_get(sv); | |
ed6116ce | 6364 | if (SvTHINKFIRST(sv)) { |
765f542d NC |
6365 | if (SvIsCOW(sv)) |
6366 | sv_force_normal_flags(sv, 0); | |
0f15f207 | 6367 | if (SvREADONLY(sv)) { |
3280af22 | 6368 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 6369 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6370 | } |
a0d0e21e | 6371 | if (SvROK(sv)) { |
b5be31e9 | 6372 | IV i; |
9e7bc3e8 JD |
6373 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
6374 | return; | |
56431972 | 6375 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6376 | sv_unref(sv); |
6377 | sv_setiv(sv, i); | |
a0d0e21e | 6378 | } |
ed6116ce | 6379 | } |
28e5dec8 JH |
6380 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
6381 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 6382 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6383 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
6384 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6385 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6386 | oops_its_int: |
59d8ce62 | 6387 | #endif |
25da4f38 IZ |
6388 | if (SvIsUV(sv)) { |
6389 | if (SvUVX(sv) == 0) { | |
6390 | (void)SvIOK_only(sv); | |
6391 | SvIVX(sv) = -1; | |
6392 | } | |
6393 | else { | |
6394 | (void)SvIOK_only_UV(sv); | |
6395 | --SvUVX(sv); | |
1c846c1f | 6396 | } |
25da4f38 IZ |
6397 | } else { |
6398 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 6399 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
6400 | else { |
6401 | (void)SvIOK_only(sv); | |
6402 | --SvIVX(sv); | |
1c846c1f | 6403 | } |
55497cff | 6404 | } |
6405 | return; | |
6406 | } | |
28e5dec8 JH |
6407 | if (flags & SVp_NOK) { |
6408 | SvNVX(sv) -= 1.0; | |
6409 | (void)SvNOK_only(sv); | |
6410 | return; | |
6411 | } | |
8990e307 | 6412 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
6413 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
6414 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 6415 | SvNVX(sv) = -1.0; |
a0d0e21e | 6416 | (void)SvNOK_only(sv); |
79072805 LW |
6417 | return; |
6418 | } | |
28e5dec8 JH |
6419 | #ifdef PERL_PRESERVE_IVUV |
6420 | { | |
c2988b20 | 6421 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6422 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6423 | /* Need to try really hard to see if it's an integer. | |
6424 | 9.22337203685478e+18 is an integer. | |
6425 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6426 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
6427 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
6428 | or we go insane. */ | |
d460ef45 | 6429 | |
28e5dec8 JH |
6430 | (void) sv_2iv(sv); |
6431 | if (SvIOK(sv)) | |
6432 | goto oops_its_int; | |
6433 | ||
6434 | /* sv_2iv *should* have made this an NV */ | |
6435 | if (flags & SVp_NOK) { | |
6436 | (void)SvNOK_only(sv); | |
6437 | SvNVX(sv) -= 1.0; | |
6438 | return; | |
6439 | } | |
6440 | /* I don't think we can get here. Maybe I should assert this | |
6441 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6442 | Fall through. */ | |
6443 | #if defined(USE_LONG_DOUBLE) | |
6444 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_dec punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"PERL_PRIgldbl"\n", | |
6445 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6446 | #else | |
1779d84d | 6447 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_dec punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
28e5dec8 JH |
6448 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
6449 | #endif | |
6450 | } | |
6451 | } | |
6452 | #endif /* PERL_PRESERVE_IVUV */ | |
097ee67d | 6453 | sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
6454 | } |
6455 | ||
954c1994 GS |
6456 | /* |
6457 | =for apidoc sv_mortalcopy | |
6458 | ||
645c22ef | 6459 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
d4236ebc DM |
6460 | The new SV is marked as mortal. It will be destroyed "soon", either by an |
6461 | explicit call to FREETMPS, or by an implicit call at places such as | |
6462 | statement boundaries. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
6463 | |
6464 | =cut | |
6465 | */ | |
6466 | ||
79072805 LW |
6467 | /* Make a string that will exist for the duration of the expression |
6468 | * evaluation. Actually, it may have to last longer than that, but | |
6469 | * hopefully we won't free it until it has been assigned to a | |
6470 | * permanent location. */ | |
6471 | ||
6472 | SV * | |
864dbfa3 | 6473 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 6474 | { |
463ee0b2 | 6475 | register SV *sv; |
b881518d | 6476 | |
4561caa4 | 6477 | new_SV(sv); |
79072805 | 6478 | sv_setsv(sv,oldstr); |
677b06e3 GS |
6479 | EXTEND_MORTAL(1); |
6480 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
6481 | SvTEMP_on(sv); |
6482 | return sv; | |
6483 | } | |
6484 | ||
954c1994 GS |
6485 | /* |
6486 | =for apidoc sv_newmortal | |
6487 | ||
645c22ef | 6488 | Creates a new null SV which is mortal. The reference count of the SV is |
d4236ebc DM |
6489 | set to 1. It will be destroyed "soon", either by an explicit call to |
6490 | FREETMPS, or by an implicit call at places such as statement boundaries. | |
6491 | See also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
6492 | |
6493 | =cut | |
6494 | */ | |
6495 | ||
8990e307 | 6496 | SV * |
864dbfa3 | 6497 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
6498 | { |
6499 | register SV *sv; | |
6500 | ||
4561caa4 | 6501 | new_SV(sv); |
8990e307 | 6502 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
6503 | EXTEND_MORTAL(1); |
6504 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
6505 | return sv; |
6506 | } | |
6507 | ||
954c1994 GS |
6508 | /* |
6509 | =for apidoc sv_2mortal | |
6510 | ||
d4236ebc DM |
6511 | Marks an existing SV as mortal. The SV will be destroyed "soon", either |
6512 | by an explicit call to FREETMPS, or by an implicit call at places such as | |
6513 | statement boundaries. See also C<sv_newmortal> and C<sv_mortalcopy>. | |
954c1994 GS |
6514 | |
6515 | =cut | |
6516 | */ | |
6517 | ||
79072805 | 6518 | SV * |
864dbfa3 | 6519 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 LW |
6520 | { |
6521 | if (!sv) | |
6522 | return sv; | |
d689ffdd | 6523 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 6524 | return sv; |
677b06e3 GS |
6525 | EXTEND_MORTAL(1); |
6526 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 6527 | SvTEMP_on(sv); |
79072805 LW |
6528 | return sv; |
6529 | } | |
6530 | ||
954c1994 GS |
6531 | /* |
6532 | =for apidoc newSVpv | |
6533 | ||
6534 | Creates a new SV and copies a string into it. The reference count for the | |
6535 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
6536 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
6537 | ||
6538 | =cut | |
6539 | */ | |
6540 | ||
79072805 | 6541 | SV * |
864dbfa3 | 6542 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 6543 | { |
463ee0b2 | 6544 | register SV *sv; |
79072805 | 6545 | |
4561caa4 | 6546 | new_SV(sv); |
79072805 LW |
6547 | if (!len) |
6548 | len = strlen(s); | |
6549 | sv_setpvn(sv,s,len); | |
6550 | return sv; | |
6551 | } | |
6552 | ||
954c1994 GS |
6553 | /* |
6554 | =for apidoc newSVpvn | |
6555 | ||
6556 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 6557 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 GS |
6558 | string. You are responsible for ensuring that the source string is at least |
6559 | C<len> bytes long. | |
6560 | ||
6561 | =cut | |
6562 | */ | |
6563 | ||
9da1e3b5 | 6564 | SV * |
864dbfa3 | 6565 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
6566 | { |
6567 | register SV *sv; | |
6568 | ||
6569 | new_SV(sv); | |
9da1e3b5 MUN |
6570 | sv_setpvn(sv,s,len); |
6571 | return sv; | |
6572 | } | |
6573 | ||
1c846c1f NIS |
6574 | /* |
6575 | =for apidoc newSVpvn_share | |
6576 | ||
645c22ef DM |
6577 | Creates a new SV with its SvPVX pointing to a shared string in the string |
6578 | table. If the string does not already exist in the table, it is created | |
6579 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
6580 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
6581 | otherwise the hash is computed. The idea here is that as the string table | |
6582 | is used for shared hash keys these strings will have SvPVX == HeKEY and | |
6583 | hash lookup will avoid string compare. | |
1c846c1f NIS |
6584 | |
6585 | =cut | |
6586 | */ | |
6587 | ||
6588 | SV * | |
c3654f1a | 6589 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
6590 | { |
6591 | register SV *sv; | |
c3654f1a IH |
6592 | bool is_utf8 = FALSE; |
6593 | if (len < 0) { | |
77caf834 | 6594 | STRLEN tmplen = -len; |
c3654f1a | 6595 | is_utf8 = TRUE; |
75a54232 JH |
6596 | /* See the note in hv.c:hv_fetch() --jhi */ |
6597 | src = (char*)bytes_from_utf8((U8*)src, &tmplen, &is_utf8); | |
6598 | len = tmplen; | |
6599 | } | |
1c846c1f | 6600 | if (!hash) |
5afd6d42 | 6601 | PERL_HASH(hash, src, len); |
1c846c1f NIS |
6602 | new_SV(sv); |
6603 | sv_upgrade(sv, SVt_PVIV); | |
c3654f1a | 6604 | SvPVX(sv) = sharepvn(src, is_utf8?-len:len, hash); |
1c846c1f NIS |
6605 | SvCUR(sv) = len; |
6606 | SvUVX(sv) = hash; | |
6607 | SvLEN(sv) = 0; | |
6608 | SvREADONLY_on(sv); | |
6609 | SvFAKE_on(sv); | |
6610 | SvPOK_on(sv); | |
c3654f1a IH |
6611 | if (is_utf8) |
6612 | SvUTF8_on(sv); | |
1c846c1f NIS |
6613 | return sv; |
6614 | } | |
6615 | ||
645c22ef | 6616 | |
cea2e8a9 | 6617 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
6618 | |
6619 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
6620 | * version of the main function, (which may itself be aliased to us). | |
6621 | * Don't access this version directly. | |
6622 | */ | |
6623 | ||
46fc3d4c | 6624 | SV * |
cea2e8a9 | 6625 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 6626 | { |
cea2e8a9 | 6627 | dTHX; |
46fc3d4c | 6628 | register SV *sv; |
6629 | va_list args; | |
46fc3d4c | 6630 | va_start(args, pat); |
c5be433b | 6631 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 6632 | va_end(args); |
6633 | return sv; | |
6634 | } | |
cea2e8a9 | 6635 | #endif |
46fc3d4c | 6636 | |
954c1994 GS |
6637 | /* |
6638 | =for apidoc newSVpvf | |
6639 | ||
645c22ef | 6640 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
6641 | C<sprintf>. |
6642 | ||
6643 | =cut | |
6644 | */ | |
6645 | ||
cea2e8a9 GS |
6646 | SV * |
6647 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
6648 | { | |
6649 | register SV *sv; | |
6650 | va_list args; | |
cea2e8a9 | 6651 | va_start(args, pat); |
c5be433b | 6652 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
6653 | va_end(args); |
6654 | return sv; | |
6655 | } | |
46fc3d4c | 6656 | |
645c22ef DM |
6657 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
6658 | ||
79072805 | 6659 | SV * |
c5be433b GS |
6660 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
6661 | { | |
6662 | register SV *sv; | |
6663 | new_SV(sv); | |
6664 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
6665 | return sv; | |
6666 | } | |
6667 | ||
954c1994 GS |
6668 | /* |
6669 | =for apidoc newSVnv | |
6670 | ||
6671 | Creates a new SV and copies a floating point value into it. | |
6672 | The reference count for the SV is set to 1. | |
6673 | ||
6674 | =cut | |
6675 | */ | |
6676 | ||
c5be433b | 6677 | SV * |
65202027 | 6678 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 6679 | { |
463ee0b2 | 6680 | register SV *sv; |
79072805 | 6681 | |
4561caa4 | 6682 | new_SV(sv); |
79072805 LW |
6683 | sv_setnv(sv,n); |
6684 | return sv; | |
6685 | } | |
6686 | ||
954c1994 GS |
6687 | /* |
6688 | =for apidoc newSViv | |
6689 | ||
6690 | Creates a new SV and copies an integer into it. The reference count for the | |
6691 | SV is set to 1. | |
6692 | ||
6693 | =cut | |
6694 | */ | |
6695 | ||
79072805 | 6696 | SV * |
864dbfa3 | 6697 | Perl_newSViv(pTHX_ IV i) |
79072805 | 6698 | { |
463ee0b2 | 6699 | register SV *sv; |
79072805 | 6700 | |
4561caa4 | 6701 | new_SV(sv); |
79072805 LW |
6702 | sv_setiv(sv,i); |
6703 | return sv; | |
6704 | } | |
6705 | ||
954c1994 | 6706 | /* |
1a3327fb JH |
6707 | =for apidoc newSVuv |
6708 | ||
6709 | Creates a new SV and copies an unsigned integer into it. | |
6710 | The reference count for the SV is set to 1. | |
6711 | ||
6712 | =cut | |
6713 | */ | |
6714 | ||
6715 | SV * | |
6716 | Perl_newSVuv(pTHX_ UV u) | |
6717 | { | |
6718 | register SV *sv; | |
6719 | ||
6720 | new_SV(sv); | |
6721 | sv_setuv(sv,u); | |
6722 | return sv; | |
6723 | } | |
6724 | ||
6725 | /* | |
954c1994 GS |
6726 | =for apidoc newRV_noinc |
6727 | ||
6728 | Creates an RV wrapper for an SV. The reference count for the original | |
6729 | SV is B<not> incremented. | |
6730 | ||
6731 | =cut | |
6732 | */ | |
6733 | ||
2304df62 | 6734 | SV * |
864dbfa3 | 6735 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
6736 | { |
6737 | register SV *sv; | |
6738 | ||
4561caa4 | 6739 | new_SV(sv); |
2304df62 | 6740 | sv_upgrade(sv, SVt_RV); |
76e3520e | 6741 | SvTEMP_off(tmpRef); |
d689ffdd | 6742 | SvRV(sv) = tmpRef; |
2304df62 | 6743 | SvROK_on(sv); |
2304df62 AD |
6744 | return sv; |
6745 | } | |
6746 | ||
ff276b08 | 6747 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
6748 | * newRV_inc is in fact #defined to newRV in sv.h |
6749 | */ | |
6750 | ||
5f05dabc | 6751 | SV * |
864dbfa3 | 6752 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 6753 | { |
5f6447b6 | 6754 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 6755 | } |
5f05dabc | 6756 | |
954c1994 GS |
6757 | /* |
6758 | =for apidoc newSVsv | |
6759 | ||
6760 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 6761 | (Uses C<sv_setsv>). |
954c1994 GS |
6762 | |
6763 | =cut | |
6764 | */ | |
6765 | ||
79072805 | 6766 | SV * |
864dbfa3 | 6767 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 6768 | { |
463ee0b2 | 6769 | register SV *sv; |
79072805 LW |
6770 | |
6771 | if (!old) | |
6772 | return Nullsv; | |
8990e307 | 6773 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 | 6774 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 6775 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "semi-panic: attempt to dup freed string"); |
79072805 LW |
6776 | return Nullsv; |
6777 | } | |
4561caa4 | 6778 | new_SV(sv); |
ff68c719 | 6779 | if (SvTEMP(old)) { |
6780 | SvTEMP_off(old); | |
463ee0b2 | 6781 | sv_setsv(sv,old); |
ff68c719 | 6782 | SvTEMP_on(old); |
79072805 LW |
6783 | } |
6784 | else | |
463ee0b2 LW |
6785 | sv_setsv(sv,old); |
6786 | return sv; | |
79072805 LW |
6787 | } |
6788 | ||
645c22ef DM |
6789 | /* |
6790 | =for apidoc sv_reset | |
6791 | ||
6792 | Underlying implementation for the C<reset> Perl function. | |
6793 | Note that the perl-level function is vaguely deprecated. | |
6794 | ||
6795 | =cut | |
6796 | */ | |
6797 | ||
79072805 | 6798 | void |
864dbfa3 | 6799 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 LW |
6800 | { |
6801 | register HE *entry; | |
6802 | register GV *gv; | |
6803 | register SV *sv; | |
6804 | register I32 i; | |
6805 | register PMOP *pm; | |
6806 | register I32 max; | |
4802d5d7 | 6807 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 6808 | |
49d8d3a1 MB |
6809 | if (!stash) |
6810 | return; | |
6811 | ||
79072805 LW |
6812 | if (!*s) { /* reset ?? searches */ |
6813 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 6814 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
6815 | } |
6816 | return; | |
6817 | } | |
6818 | ||
6819 | /* reset variables */ | |
6820 | ||
6821 | if (!HvARRAY(stash)) | |
6822 | return; | |
463ee0b2 LW |
6823 | |
6824 | Zero(todo, 256, char); | |
79072805 | 6825 | while (*s) { |
4802d5d7 | 6826 | i = (unsigned char)*s; |
79072805 LW |
6827 | if (s[1] == '-') { |
6828 | s += 2; | |
6829 | } | |
4802d5d7 | 6830 | max = (unsigned char)*s++; |
79072805 | 6831 | for ( ; i <= max; i++) { |
463ee0b2 LW |
6832 | todo[i] = 1; |
6833 | } | |
a0d0e21e | 6834 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 6835 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
6836 | entry; |
6837 | entry = HeNEXT(entry)) | |
6838 | { | |
1edc1566 | 6839 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 6840 | continue; |
1edc1566 | 6841 | gv = (GV*)HeVAL(entry); |
79072805 | 6842 | sv = GvSV(gv); |
9e35f4b3 GS |
6843 | if (SvTHINKFIRST(sv)) { |
6844 | if (!SvREADONLY(sv) && SvROK(sv)) | |
6845 | sv_unref(sv); | |
6846 | continue; | |
6847 | } | |
a0d0e21e | 6848 | (void)SvOK_off(sv); |
79072805 LW |
6849 | if (SvTYPE(sv) >= SVt_PV) { |
6850 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
6851 | if (SvPVX(sv) != Nullch) |
6852 | *SvPVX(sv) = '\0'; | |
44a8e56a | 6853 | SvTAINT(sv); |
79072805 LW |
6854 | } |
6855 | if (GvAV(gv)) { | |
6856 | av_clear(GvAV(gv)); | |
6857 | } | |
44a8e56a | 6858 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 6859 | hv_clear(GvHV(gv)); |
fa6a1c44 | 6860 | #ifdef USE_ENVIRON_ARRAY |
4efc5df6 GS |
6861 | if (gv == PL_envgv |
6862 | # ifdef USE_ITHREADS | |
6863 | && PL_curinterp == aTHX | |
6864 | # endif | |
6865 | ) | |
6866 | { | |
79072805 | 6867 | environ[0] = Nullch; |
4efc5df6 | 6868 | } |
a0d0e21e | 6869 | #endif |
79072805 LW |
6870 | } |
6871 | } | |
6872 | } | |
6873 | } | |
6874 | } | |
6875 | ||
645c22ef DM |
6876 | /* |
6877 | =for apidoc sv_2io | |
6878 | ||
6879 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
6880 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
6881 | named after the PV if we're a string. | |
6882 | ||
6883 | =cut | |
6884 | */ | |
6885 | ||
46fc3d4c | 6886 | IO* |
864dbfa3 | 6887 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 6888 | { |
6889 | IO* io; | |
6890 | GV* gv; | |
2d8e6c8d | 6891 | STRLEN n_a; |
46fc3d4c | 6892 | |
6893 | switch (SvTYPE(sv)) { | |
6894 | case SVt_PVIO: | |
6895 | io = (IO*)sv; | |
6896 | break; | |
6897 | case SVt_PVGV: | |
6898 | gv = (GV*)sv; | |
6899 | io = GvIO(gv); | |
6900 | if (!io) | |
cea2e8a9 | 6901 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 6902 | break; |
6903 | default: | |
6904 | if (!SvOK(sv)) | |
cea2e8a9 | 6905 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 6906 | if (SvROK(sv)) |
6907 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 6908 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 6909 | if (gv) |
6910 | io = GvIO(gv); | |
6911 | else | |
6912 | io = 0; | |
6913 | if (!io) | |
cea2e8a9 | 6914 | Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a)); |
46fc3d4c | 6915 | break; |
6916 | } | |
6917 | return io; | |
6918 | } | |
6919 | ||
645c22ef DM |
6920 | /* |
6921 | =for apidoc sv_2cv | |
6922 | ||
6923 | Using various gambits, try to get a CV from an SV; in addition, try if | |
6924 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
6925 | ||
6926 | =cut | |
6927 | */ | |
6928 | ||
79072805 | 6929 | CV * |
864dbfa3 | 6930 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 | 6931 | { |
c04a4dfe JH |
6932 | GV *gv = Nullgv; |
6933 | CV *cv = Nullcv; | |
2d8e6c8d | 6934 | STRLEN n_a; |
79072805 LW |
6935 | |
6936 | if (!sv) | |
93a17b20 | 6937 | return *gvp = Nullgv, Nullcv; |
79072805 | 6938 | switch (SvTYPE(sv)) { |
79072805 LW |
6939 | case SVt_PVCV: |
6940 | *st = CvSTASH(sv); | |
6941 | *gvp = Nullgv; | |
6942 | return (CV*)sv; | |
6943 | case SVt_PVHV: | |
6944 | case SVt_PVAV: | |
6945 | *gvp = Nullgv; | |
6946 | return Nullcv; | |
8990e307 LW |
6947 | case SVt_PVGV: |
6948 | gv = (GV*)sv; | |
a0d0e21e | 6949 | *gvp = gv; |
8990e307 LW |
6950 | *st = GvESTASH(gv); |
6951 | goto fix_gv; | |
6952 | ||
79072805 | 6953 | default: |
a0d0e21e LW |
6954 | if (SvGMAGICAL(sv)) |
6955 | mg_get(sv); | |
6956 | if (SvROK(sv)) { | |
f5284f61 IZ |
6957 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
6958 | tryAMAGICunDEREF(to_cv); | |
6959 | ||
62f274bf GS |
6960 | sv = SvRV(sv); |
6961 | if (SvTYPE(sv) == SVt_PVCV) { | |
6962 | cv = (CV*)sv; | |
6963 | *gvp = Nullgv; | |
6964 | *st = CvSTASH(cv); | |
6965 | return cv; | |
6966 | } | |
6967 | else if(isGV(sv)) | |
6968 | gv = (GV*)sv; | |
6969 | else | |
cea2e8a9 | 6970 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 6971 | } |
62f274bf | 6972 | else if (isGV(sv)) |
79072805 LW |
6973 | gv = (GV*)sv; |
6974 | else | |
2d8e6c8d | 6975 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
6976 | *gvp = gv; |
6977 | if (!gv) | |
6978 | return Nullcv; | |
6979 | *st = GvESTASH(gv); | |
8990e307 | 6980 | fix_gv: |
8ebc5c01 | 6981 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 6982 | SV *tmpsv; |
748a9306 | 6983 | ENTER; |
4633a7c4 | 6984 | tmpsv = NEWSV(704,0); |
16660edb | 6985 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
6986 | /* XXX this is probably not what they think they're getting. |
6987 | * It has the same effect as "sub name;", i.e. just a forward | |
6988 | * declaration! */ | |
774d564b | 6989 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
6990 | newSVOP(OP_CONST, 0, tmpsv), |
6991 | Nullop, | |
8990e307 | 6992 | Nullop); |
748a9306 | 6993 | LEAVE; |
8ebc5c01 | 6994 | if (!GvCVu(gv)) |
cea2e8a9 | 6995 | Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a)); |
8990e307 | 6996 | } |
8ebc5c01 | 6997 | return GvCVu(gv); |
79072805 LW |
6998 | } |
6999 | } | |
7000 | ||
c461cf8f JH |
7001 | /* |
7002 | =for apidoc sv_true | |
7003 | ||
7004 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
7005 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
7006 | instead use an in-line version. | |
c461cf8f JH |
7007 | |
7008 | =cut | |
7009 | */ | |
7010 | ||
79072805 | 7011 | I32 |
864dbfa3 | 7012 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 7013 | { |
8990e307 LW |
7014 | if (!sv) |
7015 | return 0; | |
79072805 | 7016 | if (SvPOK(sv)) { |
4e35701f NIS |
7017 | register XPV* tXpv; |
7018 | if ((tXpv = (XPV*)SvANY(sv)) && | |
c2f1de04 | 7019 | (tXpv->xpv_cur > 1 || |
4e35701f | 7020 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
7021 | return 1; |
7022 | else | |
7023 | return 0; | |
7024 | } | |
7025 | else { | |
7026 | if (SvIOK(sv)) | |
463ee0b2 | 7027 | return SvIVX(sv) != 0; |
79072805 LW |
7028 | else { |
7029 | if (SvNOK(sv)) | |
463ee0b2 | 7030 | return SvNVX(sv) != 0.0; |
79072805 | 7031 | else |
463ee0b2 | 7032 | return sv_2bool(sv); |
79072805 LW |
7033 | } |
7034 | } | |
7035 | } | |
79072805 | 7036 | |
645c22ef DM |
7037 | /* |
7038 | =for apidoc sv_iv | |
7039 | ||
7040 | A private implementation of the C<SvIVx> macro for compilers which can't | |
7041 | cope with complex macro expressions. Always use the macro instead. | |
7042 | ||
7043 | =cut | |
7044 | */ | |
7045 | ||
ff68c719 | 7046 | IV |
864dbfa3 | 7047 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 7048 | { |
25da4f38 IZ |
7049 | if (SvIOK(sv)) { |
7050 | if (SvIsUV(sv)) | |
7051 | return (IV)SvUVX(sv); | |
ff68c719 | 7052 | return SvIVX(sv); |
25da4f38 | 7053 | } |
ff68c719 | 7054 | return sv_2iv(sv); |
85e6fe83 | 7055 | } |
85e6fe83 | 7056 | |
645c22ef DM |
7057 | /* |
7058 | =for apidoc sv_uv | |
7059 | ||
7060 | A private implementation of the C<SvUVx> macro for compilers which can't | |
7061 | cope with complex macro expressions. Always use the macro instead. | |
7062 | ||
7063 | =cut | |
7064 | */ | |
7065 | ||
ff68c719 | 7066 | UV |
864dbfa3 | 7067 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 7068 | { |
25da4f38 IZ |
7069 | if (SvIOK(sv)) { |
7070 | if (SvIsUV(sv)) | |
7071 | return SvUVX(sv); | |
7072 | return (UV)SvIVX(sv); | |
7073 | } | |
ff68c719 | 7074 | return sv_2uv(sv); |
7075 | } | |
85e6fe83 | 7076 | |
645c22ef DM |
7077 | /* |
7078 | =for apidoc sv_nv | |
7079 | ||
7080 | A private implementation of the C<SvNVx> macro for compilers which can't | |
7081 | cope with complex macro expressions. Always use the macro instead. | |
7082 | ||
7083 | =cut | |
7084 | */ | |
7085 | ||
65202027 | 7086 | NV |
864dbfa3 | 7087 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 7088 | { |
ff68c719 | 7089 | if (SvNOK(sv)) |
7090 | return SvNVX(sv); | |
7091 | return sv_2nv(sv); | |
79072805 | 7092 | } |
79072805 | 7093 | |
645c22ef DM |
7094 | /* |
7095 | =for apidoc sv_pv | |
7096 | ||
baca2b92 | 7097 | Use the C<SvPV_nolen> macro instead |
645c22ef | 7098 | |
645c22ef DM |
7099 | =for apidoc sv_pvn |
7100 | ||
7101 | A private implementation of the C<SvPV> macro for compilers which can't | |
7102 | cope with complex macro expressions. Always use the macro instead. | |
7103 | ||
7104 | =cut | |
7105 | */ | |
7106 | ||
1fa8b10d | 7107 | char * |
864dbfa3 | 7108 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 7109 | { |
85e6fe83 LW |
7110 | if (SvPOK(sv)) { |
7111 | *lp = SvCUR(sv); | |
a0d0e21e | 7112 | return SvPVX(sv); |
85e6fe83 | 7113 | } |
463ee0b2 | 7114 | return sv_2pv(sv, lp); |
79072805 | 7115 | } |
79072805 | 7116 | |
6e9d1081 NC |
7117 | |
7118 | char * | |
7119 | Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp) | |
7120 | { | |
7121 | if (SvPOK(sv)) { | |
7122 | *lp = SvCUR(sv); | |
7123 | return SvPVX(sv); | |
7124 | } | |
7125 | return sv_2pv_flags(sv, lp, 0); | |
7126 | } | |
7127 | ||
c461cf8f JH |
7128 | /* |
7129 | =for apidoc sv_pvn_force | |
7130 | ||
7131 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
7132 | A private implementation of the C<SvPV_force> macro for compilers which |
7133 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f | 7134 | |
8d6d96c1 HS |
7135 | =for apidoc sv_pvn_force_flags |
7136 | ||
7137 | Get a sensible string out of the SV somehow. | |
7138 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
7139 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
7140 | implemented in terms of this function. | |
645c22ef DM |
7141 | You normally want to use the various wrapper macros instead: see |
7142 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
7143 | |
7144 | =cut | |
7145 | */ | |
7146 | ||
7147 | char * | |
7148 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
7149 | { | |
c04a4dfe | 7150 | char *s = NULL; |
a0d0e21e | 7151 | |
6fc92669 | 7152 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
765f542d | 7153 | sv_force_normal_flags(sv, 0); |
1c846c1f | 7154 | |
a0d0e21e LW |
7155 | if (SvPOK(sv)) { |
7156 | *lp = SvCUR(sv); | |
7157 | } | |
7158 | else { | |
748a9306 | 7159 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
cea2e8a9 | 7160 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
53e06cf0 | 7161 | OP_NAME(PL_op)); |
a0d0e21e | 7162 | } |
4633a7c4 | 7163 | else |
8d6d96c1 | 7164 | s = sv_2pv_flags(sv, lp, flags); |
a0d0e21e LW |
7165 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
7166 | STRLEN len = *lp; | |
1c846c1f | 7167 | |
a0d0e21e LW |
7168 | if (SvROK(sv)) |
7169 | sv_unref(sv); | |
7170 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
7171 | SvGROW(sv, len + 1); | |
7172 | Move(s,SvPVX(sv),len,char); | |
7173 | SvCUR_set(sv, len); | |
7174 | *SvEND(sv) = '\0'; | |
7175 | } | |
7176 | if (!SvPOK(sv)) { | |
7177 | SvPOK_on(sv); /* validate pointer */ | |
7178 | SvTAINT(sv); | |
1d7c1841 GS |
7179 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
7180 | PTR2UV(sv),SvPVX(sv))); | |
a0d0e21e LW |
7181 | } |
7182 | } | |
7183 | return SvPVX(sv); | |
7184 | } | |
7185 | ||
645c22ef DM |
7186 | /* |
7187 | =for apidoc sv_pvbyte | |
7188 | ||
baca2b92 | 7189 | Use C<SvPVbyte_nolen> instead. |
645c22ef | 7190 | |
645c22ef DM |
7191 | =for apidoc sv_pvbyten |
7192 | ||
7193 | A private implementation of the C<SvPVbyte> macro for compilers | |
7194 | which can't cope with complex macro expressions. Always use the macro | |
7195 | instead. | |
7196 | ||
7197 | =cut | |
7198 | */ | |
7199 | ||
7340a771 GS |
7200 | char * |
7201 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
7202 | { | |
ffebcc3e | 7203 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
7204 | return sv_pvn(sv,lp); |
7205 | } | |
7206 | ||
645c22ef DM |
7207 | /* |
7208 | =for apidoc sv_pvbyten_force | |
7209 | ||
7210 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
7211 | which can't cope with complex macro expressions. Always use the macro | |
7212 | instead. | |
7213 | ||
7214 | =cut | |
7215 | */ | |
7216 | ||
7340a771 GS |
7217 | char * |
7218 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
7219 | { | |
ffebcc3e | 7220 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
7221 | return sv_pvn_force(sv,lp); |
7222 | } | |
7223 | ||
645c22ef DM |
7224 | /* |
7225 | =for apidoc sv_pvutf8 | |
7226 | ||
baca2b92 | 7227 | Use the C<SvPVutf8_nolen> macro instead |
645c22ef | 7228 | |
645c22ef DM |
7229 | =for apidoc sv_pvutf8n |
7230 | ||
7231 | A private implementation of the C<SvPVutf8> macro for compilers | |
7232 | which can't cope with complex macro expressions. Always use the macro | |
7233 | instead. | |
7234 | ||
7235 | =cut | |
7236 | */ | |
7237 | ||
7340a771 GS |
7238 | char * |
7239 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
7240 | { | |
560a288e | 7241 | sv_utf8_upgrade(sv); |
7340a771 GS |
7242 | return sv_pvn(sv,lp); |
7243 | } | |
7244 | ||
c461cf8f JH |
7245 | /* |
7246 | =for apidoc sv_pvutf8n_force | |
7247 | ||
645c22ef DM |
7248 | A private implementation of the C<SvPVutf8_force> macro for compilers |
7249 | which can't cope with complex macro expressions. Always use the macro | |
7250 | instead. | |
c461cf8f JH |
7251 | |
7252 | =cut | |
7253 | */ | |
7254 | ||
7340a771 GS |
7255 | char * |
7256 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
7257 | { | |
560a288e | 7258 | sv_utf8_upgrade(sv); |
7340a771 GS |
7259 | return sv_pvn_force(sv,lp); |
7260 | } | |
7261 | ||
c461cf8f JH |
7262 | /* |
7263 | =for apidoc sv_reftype | |
7264 | ||
7265 | Returns a string describing what the SV is a reference to. | |
7266 | ||
7267 | =cut | |
7268 | */ | |
7269 | ||
7340a771 | 7270 | char * |
864dbfa3 | 7271 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e | 7272 | { |
c86bf373 | 7273 | if (ob && SvOBJECT(sv)) { |
de11ba31 | 7274 | return HvNAME(SvSTASH(sv)); |
c86bf373 | 7275 | } |
a0d0e21e LW |
7276 | else { |
7277 | switch (SvTYPE(sv)) { | |
7278 | case SVt_NULL: | |
7279 | case SVt_IV: | |
7280 | case SVt_NV: | |
7281 | case SVt_RV: | |
7282 | case SVt_PV: | |
7283 | case SVt_PVIV: | |
7284 | case SVt_PVNV: | |
7285 | case SVt_PVMG: | |
7286 | case SVt_PVBM: | |
439cb1c4 JP |
7287 | if (SvVOK(sv)) |
7288 | return "VSTRING"; | |
a0d0e21e LW |
7289 | if (SvROK(sv)) |
7290 | return "REF"; | |
7291 | else | |
7292 | return "SCALAR"; | |
7293 | case SVt_PVLV: return "LVALUE"; | |
7294 | case SVt_PVAV: return "ARRAY"; | |
7295 | case SVt_PVHV: return "HASH"; | |
7296 | case SVt_PVCV: return "CODE"; | |
7297 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 7298 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 7299 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
7300 | default: return "UNKNOWN"; |
7301 | } | |
7302 | } | |
7303 | } | |
7304 | ||
954c1994 GS |
7305 | /* |
7306 | =for apidoc sv_isobject | |
7307 | ||
7308 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
7309 | object. If the SV is not an RV, or if the object is not blessed, then this | |
7310 | will return false. | |
7311 | ||
7312 | =cut | |
7313 | */ | |
7314 | ||
463ee0b2 | 7315 | int |
864dbfa3 | 7316 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 7317 | { |
68dc0745 | 7318 | if (!sv) |
7319 | return 0; | |
7320 | if (SvGMAGICAL(sv)) | |
7321 | mg_get(sv); | |
85e6fe83 LW |
7322 | if (!SvROK(sv)) |
7323 | return 0; | |
7324 | sv = (SV*)SvRV(sv); | |
7325 | if (!SvOBJECT(sv)) | |
7326 | return 0; | |
7327 | return 1; | |
7328 | } | |
7329 | ||
954c1994 GS |
7330 | /* |
7331 | =for apidoc sv_isa | |
7332 | ||
7333 | Returns a boolean indicating whether the SV is blessed into the specified | |
7334 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
7335 | an inheritance relationship. | |
7336 | ||
7337 | =cut | |
7338 | */ | |
7339 | ||
85e6fe83 | 7340 | int |
864dbfa3 | 7341 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 7342 | { |
68dc0745 | 7343 | if (!sv) |
7344 | return 0; | |
7345 | if (SvGMAGICAL(sv)) | |
7346 | mg_get(sv); | |
ed6116ce | 7347 | if (!SvROK(sv)) |
463ee0b2 | 7348 | return 0; |
ed6116ce LW |
7349 | sv = (SV*)SvRV(sv); |
7350 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
7351 | return 0; |
7352 | ||
7353 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
7354 | } | |
7355 | ||
954c1994 GS |
7356 | /* |
7357 | =for apidoc newSVrv | |
7358 | ||
7359 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
7360 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
7361 | be blessed in the specified package. The new SV is returned and its | |
7362 | reference count is 1. | |
7363 | ||
7364 | =cut | |
7365 | */ | |
7366 | ||
463ee0b2 | 7367 | SV* |
864dbfa3 | 7368 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 7369 | { |
463ee0b2 LW |
7370 | SV *sv; |
7371 | ||
4561caa4 | 7372 | new_SV(sv); |
51cf62d8 | 7373 | |
765f542d | 7374 | SV_CHECK_THINKFIRST_COW_DROP(rv); |
51cf62d8 | 7375 | SvAMAGIC_off(rv); |
51cf62d8 | 7376 | |
0199fce9 JD |
7377 | if (SvTYPE(rv) >= SVt_PVMG) { |
7378 | U32 refcnt = SvREFCNT(rv); | |
7379 | SvREFCNT(rv) = 0; | |
7380 | sv_clear(rv); | |
7381 | SvFLAGS(rv) = 0; | |
7382 | SvREFCNT(rv) = refcnt; | |
7383 | } | |
7384 | ||
51cf62d8 | 7385 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
7386 | sv_upgrade(rv, SVt_RV); |
7387 | else if (SvTYPE(rv) > SVt_RV) { | |
7388 | (void)SvOOK_off(rv); | |
7389 | if (SvPVX(rv) && SvLEN(rv)) | |
7390 | Safefree(SvPVX(rv)); | |
7391 | SvCUR_set(rv, 0); | |
7392 | SvLEN_set(rv, 0); | |
7393 | } | |
51cf62d8 OT |
7394 | |
7395 | (void)SvOK_off(rv); | |
053fc874 | 7396 | SvRV(rv) = sv; |
ed6116ce | 7397 | SvROK_on(rv); |
463ee0b2 | 7398 | |
a0d0e21e LW |
7399 | if (classname) { |
7400 | HV* stash = gv_stashpv(classname, TRUE); | |
7401 | (void)sv_bless(rv, stash); | |
7402 | } | |
7403 | return sv; | |
7404 | } | |
7405 | ||
954c1994 GS |
7406 | /* |
7407 | =for apidoc sv_setref_pv | |
7408 | ||
7409 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
7410 | argument will be upgraded to an RV. That RV will be modified to point to | |
7411 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
7412 | into the SV. The C<classname> argument indicates the package for the | |
7413 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7414 | will be returned and will have a reference count of 1. | |
7415 | ||
7416 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
7417 | objects will become corrupted by the pointer copy process. | |
7418 | ||
7419 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
7420 | ||
7421 | =cut | |
7422 | */ | |
7423 | ||
a0d0e21e | 7424 | SV* |
864dbfa3 | 7425 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 7426 | { |
189b2af5 | 7427 | if (!pv) { |
3280af22 | 7428 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
7429 | SvSETMAGIC(rv); |
7430 | } | |
a0d0e21e | 7431 | else |
56431972 | 7432 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
7433 | return rv; |
7434 | } | |
7435 | ||
954c1994 GS |
7436 | /* |
7437 | =for apidoc sv_setref_iv | |
7438 | ||
7439 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
7440 | argument will be upgraded to an RV. That RV will be modified to point to | |
7441 | the new SV. The C<classname> argument indicates the package for the | |
7442 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7443 | will be returned and will have a reference count of 1. | |
7444 | ||
7445 | =cut | |
7446 | */ | |
7447 | ||
a0d0e21e | 7448 | SV* |
864dbfa3 | 7449 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
7450 | { |
7451 | sv_setiv(newSVrv(rv,classname), iv); | |
7452 | return rv; | |
7453 | } | |
7454 | ||
954c1994 | 7455 | /* |
e1c57cef JH |
7456 | =for apidoc sv_setref_uv |
7457 | ||
7458 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
7459 | argument will be upgraded to an RV. That RV will be modified to point to | |
7460 | the new SV. The C<classname> argument indicates the package for the | |
7461 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7462 | will be returned and will have a reference count of 1. | |
7463 | ||
7464 | =cut | |
7465 | */ | |
7466 | ||
7467 | SV* | |
7468 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
7469 | { | |
7470 | sv_setuv(newSVrv(rv,classname), uv); | |
7471 | return rv; | |
7472 | } | |
7473 | ||
7474 | /* | |
954c1994 GS |
7475 | =for apidoc sv_setref_nv |
7476 | ||
7477 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
7478 | argument will be upgraded to an RV. That RV will be modified to point to | |
7479 | the new SV. The C<classname> argument indicates the package for the | |
7480 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7481 | will be returned and will have a reference count of 1. | |
7482 | ||
7483 | =cut | |
7484 | */ | |
7485 | ||
a0d0e21e | 7486 | SV* |
65202027 | 7487 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
7488 | { |
7489 | sv_setnv(newSVrv(rv,classname), nv); | |
7490 | return rv; | |
7491 | } | |
463ee0b2 | 7492 | |
954c1994 GS |
7493 | /* |
7494 | =for apidoc sv_setref_pvn | |
7495 | ||
7496 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
7497 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
7498 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
7499 | argument indicates the package for the blessing. Set C<classname> to | |
7500 | C<Nullch> to avoid the blessing. The new SV will be returned and will have | |
7501 | a reference count of 1. | |
7502 | ||
7503 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
7504 | ||
7505 | =cut | |
7506 | */ | |
7507 | ||
a0d0e21e | 7508 | SV* |
864dbfa3 | 7509 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
7510 | { |
7511 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
7512 | return rv; |
7513 | } | |
7514 | ||
954c1994 GS |
7515 | /* |
7516 | =for apidoc sv_bless | |
7517 | ||
7518 | Blesses an SV into a specified package. The SV must be an RV. The package | |
7519 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
7520 | of the SV is unaffected. | |
7521 | ||
7522 | =cut | |
7523 | */ | |
7524 | ||
a0d0e21e | 7525 | SV* |
864dbfa3 | 7526 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 7527 | { |
76e3520e | 7528 | SV *tmpRef; |
a0d0e21e | 7529 | if (!SvROK(sv)) |
cea2e8a9 | 7530 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
7531 | tmpRef = SvRV(sv); |
7532 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
7533 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 7534 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
7535 | if (SvOBJECT(tmpRef)) { |
7536 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7537 | --PL_sv_objcount; |
76e3520e | 7538 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 7539 | } |
a0d0e21e | 7540 | } |
76e3520e GS |
7541 | SvOBJECT_on(tmpRef); |
7542 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7543 | ++PL_sv_objcount; |
76e3520e GS |
7544 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
7545 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e | 7546 | |
2e3febc6 CS |
7547 | if (Gv_AMG(stash)) |
7548 | SvAMAGIC_on(sv); | |
7549 | else | |
7550 | SvAMAGIC_off(sv); | |
a0d0e21e | 7551 | |
1edbfb88 AB |
7552 | if(SvSMAGICAL(tmpRef)) |
7553 | if(mg_find(tmpRef, PERL_MAGIC_ext) || mg_find(tmpRef, PERL_MAGIC_uvar)) | |
7554 | mg_set(tmpRef); | |
7555 | ||
7556 | ||
ecdeb87c | 7557 | |
a0d0e21e LW |
7558 | return sv; |
7559 | } | |
7560 | ||
645c22ef | 7561 | /* Downgrades a PVGV to a PVMG. |
645c22ef DM |
7562 | */ |
7563 | ||
76e3520e | 7564 | STATIC void |
cea2e8a9 | 7565 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 7566 | { |
850fabdf GS |
7567 | void *xpvmg; |
7568 | ||
a0d0e21e LW |
7569 | assert(SvTYPE(sv) == SVt_PVGV); |
7570 | SvFAKE_off(sv); | |
7571 | if (GvGP(sv)) | |
1edc1566 | 7572 | gp_free((GV*)sv); |
e826b3c7 GS |
7573 | if (GvSTASH(sv)) { |
7574 | SvREFCNT_dec(GvSTASH(sv)); | |
7575 | GvSTASH(sv) = Nullhv; | |
7576 | } | |
14befaf4 | 7577 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 7578 | Safefree(GvNAME(sv)); |
a5f75d66 | 7579 | GvMULTI_off(sv); |
850fabdf GS |
7580 | |
7581 | /* need to keep SvANY(sv) in the right arena */ | |
7582 | xpvmg = new_XPVMG(); | |
7583 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
7584 | del_XPVGV(SvANY(sv)); | |
7585 | SvANY(sv) = xpvmg; | |
7586 | ||
a0d0e21e LW |
7587 | SvFLAGS(sv) &= ~SVTYPEMASK; |
7588 | SvFLAGS(sv) |= SVt_PVMG; | |
7589 | } | |
7590 | ||
954c1994 | 7591 | /* |
840a7b70 | 7592 | =for apidoc sv_unref_flags |
954c1994 GS |
7593 | |
7594 | Unsets the RV status of the SV, and decrements the reference count of | |
7595 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
7596 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
7597 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
7598 | (otherwise the decrementing is conditional on the reference count being | |
7599 | different from one or the reference being a readonly SV). | |
7889fe52 | 7600 | See C<SvROK_off>. |
954c1994 GS |
7601 | |
7602 | =cut | |
7603 | */ | |
7604 | ||
ed6116ce | 7605 | void |
840a7b70 | 7606 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 7607 | { |
a0d0e21e | 7608 | SV* rv = SvRV(sv); |
810b8aa5 GS |
7609 | |
7610 | if (SvWEAKREF(sv)) { | |
7611 | sv_del_backref(sv); | |
7612 | SvWEAKREF_off(sv); | |
7613 | SvRV(sv) = 0; | |
7614 | return; | |
7615 | } | |
ed6116ce LW |
7616 | SvRV(sv) = 0; |
7617 | SvROK_off(sv); | |
765f542d | 7618 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv) || (flags & SV_IMMEDIATE_UNREF)) |
4633a7c4 | 7619 | SvREFCNT_dec(rv); |
840a7b70 | 7620 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 7621 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 7622 | } |
8990e307 | 7623 | |
840a7b70 IZ |
7624 | /* |
7625 | =for apidoc sv_unref | |
7626 | ||
7627 | Unsets the RV status of the SV, and decrements the reference count of | |
7628 | whatever was being referenced by the RV. This can almost be thought of | |
7629 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 7630 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
7631 | |
7632 | =cut | |
7633 | */ | |
7634 | ||
7635 | void | |
7636 | Perl_sv_unref(pTHX_ SV *sv) | |
7637 | { | |
7638 | sv_unref_flags(sv, 0); | |
7639 | } | |
7640 | ||
645c22ef DM |
7641 | /* |
7642 | =for apidoc sv_taint | |
7643 | ||
7644 | Taint an SV. Use C<SvTAINTED_on> instead. | |
7645 | =cut | |
7646 | */ | |
7647 | ||
bbce6d69 | 7648 | void |
864dbfa3 | 7649 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 7650 | { |
14befaf4 | 7651 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 7652 | } |
7653 | ||
645c22ef DM |
7654 | /* |
7655 | =for apidoc sv_untaint | |
7656 | ||
7657 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
7658 | =cut | |
7659 | */ | |
7660 | ||
bbce6d69 | 7661 | void |
864dbfa3 | 7662 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 7663 | { |
13f57bf8 | 7664 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7665 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 7666 | if (mg) |
565764a8 | 7667 | mg->mg_len &= ~1; |
36477c24 | 7668 | } |
bbce6d69 | 7669 | } |
7670 | ||
645c22ef DM |
7671 | /* |
7672 | =for apidoc sv_tainted | |
7673 | ||
7674 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
7675 | =cut | |
7676 | */ | |
7677 | ||
bbce6d69 | 7678 | bool |
864dbfa3 | 7679 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 7680 | { |
13f57bf8 | 7681 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7682 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 7683 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 7684 | return TRUE; |
7685 | } | |
7686 | return FALSE; | |
bbce6d69 | 7687 | } |
7688 | ||
cea2e8a9 | 7689 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7690 | |
7691 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7692 | * version of the main function, (which may itself be aliased to us). | |
7693 | * Don't access this version directly. | |
7694 | */ | |
7695 | ||
cea2e8a9 GS |
7696 | void |
7697 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
7698 | { | |
7699 | dTHX; | |
7700 | va_list args; | |
7701 | va_start(args, pat); | |
c5be433b | 7702 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
7703 | va_end(args); |
7704 | } | |
7705 | ||
645c22ef DM |
7706 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7707 | * version of the main function, (which may itself be aliased to us). | |
7708 | * Don't access this version directly. | |
7709 | */ | |
cea2e8a9 GS |
7710 | |
7711 | void | |
7712 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7713 | { | |
7714 | dTHX; | |
7715 | va_list args; | |
7716 | va_start(args, pat); | |
c5be433b | 7717 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 7718 | va_end(args); |
cea2e8a9 GS |
7719 | } |
7720 | #endif | |
7721 | ||
954c1994 GS |
7722 | /* |
7723 | =for apidoc sv_setpvf | |
7724 | ||
7725 | Processes its arguments like C<sprintf> and sets an SV to the formatted | |
7726 | output. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
7727 | ||
7728 | =cut | |
7729 | */ | |
7730 | ||
46fc3d4c | 7731 | void |
864dbfa3 | 7732 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7733 | { |
7734 | va_list args; | |
46fc3d4c | 7735 | va_start(args, pat); |
c5be433b | 7736 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 7737 | va_end(args); |
7738 | } | |
7739 | ||
645c22ef DM |
7740 | /* backend for C<sv_setpvf> and C<sv_setpvf_nocontext> */ |
7741 | ||
c5be433b GS |
7742 | void |
7743 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
7744 | { | |
7745 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7746 | } | |
ef50df4b | 7747 | |
954c1994 GS |
7748 | /* |
7749 | =for apidoc sv_setpvf_mg | |
7750 | ||
7751 | Like C<sv_setpvf>, but also handles 'set' magic. | |
7752 | ||
7753 | =cut | |
7754 | */ | |
7755 | ||
ef50df4b | 7756 | void |
864dbfa3 | 7757 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7758 | { |
7759 | va_list args; | |
ef50df4b | 7760 | va_start(args, pat); |
c5be433b | 7761 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 7762 | va_end(args); |
c5be433b GS |
7763 | } |
7764 | ||
645c22ef DM |
7765 | /* backend for C<sv_setpvf_mg> C<setpvf_mg_nocontext> */ |
7766 | ||
c5be433b GS |
7767 | void |
7768 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7769 | { | |
7770 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7771 | SvSETMAGIC(sv); |
7772 | } | |
7773 | ||
cea2e8a9 | 7774 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7775 | |
7776 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7777 | * version of the main function, (which may itself be aliased to us). | |
7778 | * Don't access this version directly. | |
7779 | */ | |
7780 | ||
cea2e8a9 GS |
7781 | void |
7782 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
7783 | { | |
7784 | dTHX; | |
7785 | va_list args; | |
7786 | va_start(args, pat); | |
c5be433b | 7787 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
7788 | va_end(args); |
7789 | } | |
7790 | ||
645c22ef DM |
7791 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7792 | * version of the main function, (which may itself be aliased to us). | |
7793 | * Don't access this version directly. | |
7794 | */ | |
7795 | ||
cea2e8a9 GS |
7796 | void |
7797 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7798 | { | |
7799 | dTHX; | |
7800 | va_list args; | |
7801 | va_start(args, pat); | |
c5be433b | 7802 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 7803 | va_end(args); |
cea2e8a9 GS |
7804 | } |
7805 | #endif | |
7806 | ||
954c1994 GS |
7807 | /* |
7808 | =for apidoc sv_catpvf | |
7809 | ||
d5ce4a7c GA |
7810 | Processes its arguments like C<sprintf> and appends the formatted |
7811 | output to an SV. If the appended data contains "wide" characters | |
7812 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
7813 | and characters >255 formatted with %c), the original SV might get | |
7814 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. | |
7815 | C<SvSETMAGIC()> must typically be called after calling this function | |
7816 | to handle 'set' magic. | |
954c1994 | 7817 | |
d5ce4a7c | 7818 | =cut */ |
954c1994 | 7819 | |
46fc3d4c | 7820 | void |
864dbfa3 | 7821 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7822 | { |
7823 | va_list args; | |
46fc3d4c | 7824 | va_start(args, pat); |
c5be433b | 7825 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 7826 | va_end(args); |
7827 | } | |
7828 | ||
645c22ef DM |
7829 | /* backend for C<sv_catpvf> and C<catpvf_mg_nocontext> */ |
7830 | ||
ef50df4b | 7831 | void |
c5be433b GS |
7832 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
7833 | { | |
7834 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7835 | } | |
7836 | ||
954c1994 GS |
7837 | /* |
7838 | =for apidoc sv_catpvf_mg | |
7839 | ||
7840 | Like C<sv_catpvf>, but also handles 'set' magic. | |
7841 | ||
7842 | =cut | |
7843 | */ | |
7844 | ||
c5be433b | 7845 | void |
864dbfa3 | 7846 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7847 | { |
7848 | va_list args; | |
ef50df4b | 7849 | va_start(args, pat); |
c5be433b | 7850 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 7851 | va_end(args); |
c5be433b GS |
7852 | } |
7853 | ||
645c22ef DM |
7854 | /* backend for C<catpvf_mg> and C<catpvf_mg_nocontext> */ |
7855 | ||
c5be433b GS |
7856 | void |
7857 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7858 | { | |
7859 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7860 | SvSETMAGIC(sv); |
7861 | } | |
7862 | ||
954c1994 GS |
7863 | /* |
7864 | =for apidoc sv_vsetpvfn | |
7865 | ||
7866 | Works like C<vcatpvfn> but copies the text into the SV instead of | |
7867 | appending it. | |
7868 | ||
645c22ef DM |
7869 | Usually used via one of its frontends C<sv_setpvf> and C<sv_setpvf_mg>. |
7870 | ||
954c1994 GS |
7871 | =cut |
7872 | */ | |
7873 | ||
46fc3d4c | 7874 | void |
7d5ea4e7 | 7875 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7876 | { |
7877 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 7878 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 7879 | } |
7880 | ||
645c22ef DM |
7881 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
7882 | ||
2d00ba3b | 7883 | STATIC I32 |
9dd79c3f | 7884 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
7885 | { |
7886 | I32 var = 0; | |
7887 | switch (**pattern) { | |
7888 | case '1': case '2': case '3': | |
7889 | case '4': case '5': case '6': | |
7890 | case '7': case '8': case '9': | |
7891 | while (isDIGIT(**pattern)) | |
7892 | var = var * 10 + (*(*pattern)++ - '0'); | |
7893 | } | |
7894 | return var; | |
7895 | } | |
9dd79c3f | 7896 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 7897 | |
954c1994 GS |
7898 | /* |
7899 | =for apidoc sv_vcatpvfn | |
7900 | ||
7901 | Processes its arguments like C<vsprintf> and appends the formatted output | |
7902 | to an SV. Uses an array of SVs if the C style variable argument list is | |
7903 | missing (NULL). When running with taint checks enabled, indicates via | |
7904 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
7905 | locales). | |
7906 | ||
645c22ef DM |
7907 | Usually used via one of its frontends C<sv_catpvf> and C<sv_catpvf_mg>. |
7908 | ||
954c1994 GS |
7909 | =cut |
7910 | */ | |
7911 | ||
46fc3d4c | 7912 | void |
7d5ea4e7 | 7913 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7914 | { |
7915 | char *p; | |
7916 | char *q; | |
7917 | char *patend; | |
fc36a67e | 7918 | STRLEN origlen; |
46fc3d4c | 7919 | I32 svix = 0; |
c635e13b | 7920 | static char nullstr[] = "(null)"; |
9c5ffd7c | 7921 | SV *argsv = Nullsv; |
2cf2cfc6 | 7922 | bool has_utf8 = FALSE; /* has the result utf8? */ |
46fc3d4c | 7923 | |
7924 | /* no matter what, this is a string now */ | |
fc36a67e | 7925 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 7926 | |
fc36a67e | 7927 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 7928 | if (patlen == 0) |
7929 | return; | |
fc36a67e | 7930 | if (patlen == 2 && pat[0] == '%') { |
7931 | switch (pat[1]) { | |
7932 | case 's': | |
c635e13b | 7933 | if (args) { |
7934 | char *s = va_arg(*args, char*); | |
7935 | sv_catpv(sv, s ? s : nullstr); | |
7936 | } | |
7e2040f0 | 7937 | else if (svix < svmax) { |
fc36a67e | 7938 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
7939 | if (DO_UTF8(*svargs)) |
7940 | SvUTF8_on(sv); | |
7941 | } | |
fc36a67e | 7942 | return; |
7943 | case '_': | |
7944 | if (args) { | |
7e2040f0 GS |
7945 | argsv = va_arg(*args, SV*); |
7946 | sv_catsv(sv, argsv); | |
7947 | if (DO_UTF8(argsv)) | |
7948 | SvUTF8_on(sv); | |
fc36a67e | 7949 | return; |
7950 | } | |
7951 | /* See comment on '_' below */ | |
7952 | break; | |
7953 | } | |
46fc3d4c | 7954 | } |
7955 | ||
2cf2cfc6 | 7956 | if (!args && svix < svmax && DO_UTF8(*svargs)) |
205f51d8 | 7957 | has_utf8 = TRUE; |
2cf2cfc6 | 7958 | |
46fc3d4c | 7959 | patend = (char*)pat + patlen; |
7960 | for (p = (char*)pat; p < patend; p = q) { | |
7961 | bool alt = FALSE; | |
7962 | bool left = FALSE; | |
b22c7a20 | 7963 | bool vectorize = FALSE; |
211dfcf1 | 7964 | bool vectorarg = FALSE; |
2cf2cfc6 | 7965 | bool vec_utf8 = FALSE; |
46fc3d4c | 7966 | char fill = ' '; |
7967 | char plus = 0; | |
7968 | char intsize = 0; | |
7969 | STRLEN width = 0; | |
fc36a67e | 7970 | STRLEN zeros = 0; |
46fc3d4c | 7971 | bool has_precis = FALSE; |
7972 | STRLEN precis = 0; | |
2cf2cfc6 | 7973 | bool is_utf8 = FALSE; /* is this item utf8? */ |
20f6aaab AS |
7974 | #ifdef HAS_LDBL_SPRINTF_BUG |
7975 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
205f51d8 | 7976 | with sfio - Allen <allens@cpan.org> */ |
20f6aaab AS |
7977 | bool fix_ldbl_sprintf_bug = FALSE; |
7978 | #endif | |
205f51d8 | 7979 | |
46fc3d4c | 7980 | char esignbuf[4]; |
ad391ad9 | 7981 | U8 utf8buf[UTF8_MAXLEN+1]; |
46fc3d4c | 7982 | STRLEN esignlen = 0; |
7983 | ||
7984 | char *eptr = Nullch; | |
fc36a67e | 7985 | STRLEN elen = 0; |
089c015b JH |
7986 | /* Times 4: a decimal digit takes more than 3 binary digits. |
7987 | * NV_DIG: mantissa takes than many decimal digits. | |
7988 | * Plus 32: Playing safe. */ | |
7989 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
205f51d8 | 7990 | /* large enough for "%#.#f" --chip */ |
2d4389e4 | 7991 | /* what about long double NVs? --jhi */ |
b22c7a20 | 7992 | |
81f715da | 7993 | SV *vecsv = Nullsv; |
a05b299f | 7994 | U8 *vecstr = Null(U8*); |
b22c7a20 | 7995 | STRLEN veclen = 0; |
934abaf1 | 7996 | char c = 0; |
46fc3d4c | 7997 | int i; |
9c5ffd7c | 7998 | unsigned base = 0; |
8c8eb53c RB |
7999 | IV iv = 0; |
8000 | UV uv = 0; | |
9e5b023a JH |
8001 | /* we need a long double target in case HAS_LONG_DOUBLE but |
8002 | not USE_LONG_DOUBLE | |
8003 | */ | |
35fff930 | 8004 | #if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE > DOUBLESIZE |
9e5b023a JH |
8005 | long double nv; |
8006 | #else | |
65202027 | 8007 | NV nv; |
9e5b023a | 8008 | #endif |
46fc3d4c | 8009 | STRLEN have; |
8010 | STRLEN need; | |
8011 | STRLEN gap; | |
b22c7a20 GS |
8012 | char *dotstr = "."; |
8013 | STRLEN dotstrlen = 1; | |
211dfcf1 | 8014 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 8015 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
8016 | I32 epix = 0; /* explicit precision index */ |
8017 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 8018 | bool asterisk = FALSE; |
46fc3d4c | 8019 | |
211dfcf1 | 8020 | /* echo everything up to the next format specification */ |
46fc3d4c | 8021 | for (q = p; q < patend && *q != '%'; ++q) ; |
8022 | if (q > p) { | |
8023 | sv_catpvn(sv, p, q - p); | |
8024 | p = q; | |
8025 | } | |
8026 | if (q++ >= patend) | |
8027 | break; | |
8028 | ||
211dfcf1 HS |
8029 | /* |
8030 | We allow format specification elements in this order: | |
8031 | \d+\$ explicit format parameter index | |
8032 | [-+ 0#]+ flags | |
a472f209 | 8033 | v|\*(\d+\$)?v vector with optional (optionally specified) arg |
211dfcf1 HS |
8034 | \d+|\*(\d+\$)? width using optional (optionally specified) arg |
8035 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
8036 | [hlqLV] size | |
8037 | [%bcdefginopsux_DFOUX] format (mandatory) | |
8038 | */ | |
8039 | if (EXPECT_NUMBER(q, width)) { | |
8040 | if (*q == '$') { | |
8041 | ++q; | |
8042 | efix = width; | |
8043 | } else { | |
8044 | goto gotwidth; | |
8045 | } | |
8046 | } | |
8047 | ||
fc36a67e | 8048 | /* FLAGS */ |
8049 | ||
46fc3d4c | 8050 | while (*q) { |
8051 | switch (*q) { | |
8052 | case ' ': | |
8053 | case '+': | |
8054 | plus = *q++; | |
8055 | continue; | |
8056 | ||
8057 | case '-': | |
8058 | left = TRUE; | |
8059 | q++; | |
8060 | continue; | |
8061 | ||
8062 | case '0': | |
8063 | fill = *q++; | |
8064 | continue; | |
8065 | ||
8066 | case '#': | |
8067 | alt = TRUE; | |
8068 | q++; | |
8069 | continue; | |
8070 | ||
fc36a67e | 8071 | default: |
8072 | break; | |
8073 | } | |
8074 | break; | |
8075 | } | |
46fc3d4c | 8076 | |
211dfcf1 | 8077 | tryasterisk: |
eb3fce90 | 8078 | if (*q == '*') { |
211dfcf1 HS |
8079 | q++; |
8080 | if (EXPECT_NUMBER(q, ewix)) | |
8081 | if (*q++ != '$') | |
8082 | goto unknown; | |
eb3fce90 | 8083 | asterisk = TRUE; |
211dfcf1 HS |
8084 | } |
8085 | if (*q == 'v') { | |
eb3fce90 | 8086 | q++; |
211dfcf1 HS |
8087 | if (vectorize) |
8088 | goto unknown; | |
9cbac4c7 | 8089 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
8090 | evix = ewix; |
8091 | ewix = 0; | |
8092 | asterisk = FALSE; | |
8093 | } | |
8094 | vectorize = TRUE; | |
8095 | goto tryasterisk; | |
eb3fce90 JH |
8096 | } |
8097 | ||
211dfcf1 HS |
8098 | if (!asterisk) |
8099 | EXPECT_NUMBER(q, width); | |
8100 | ||
8101 | if (vectorize) { | |
8102 | if (vectorarg) { | |
8103 | if (args) | |
8104 | vecsv = va_arg(*args, SV*); | |
8105 | else | |
8106 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
8107 | svargs[ewix ? ewix-1 : svix++] : &PL_sv_undef; | |
4459522c | 8108 | dotstr = SvPVx(vecsv, dotstrlen); |
211dfcf1 | 8109 | if (DO_UTF8(vecsv)) |
2cf2cfc6 | 8110 | is_utf8 = TRUE; |
211dfcf1 HS |
8111 | } |
8112 | if (args) { | |
8113 | vecsv = va_arg(*args, SV*); | |
8114 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 8115 | vec_utf8 = DO_UTF8(vecsv); |
eb3fce90 | 8116 | } |
211dfcf1 HS |
8117 | else if (efix ? efix <= svmax : svix < svmax) { |
8118 | vecsv = svargs[efix ? efix-1 : svix++]; | |
8119 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 8120 | vec_utf8 = DO_UTF8(vecsv); |
211dfcf1 HS |
8121 | } |
8122 | else { | |
8123 | vecstr = (U8*)""; | |
8124 | veclen = 0; | |
8125 | } | |
eb3fce90 | 8126 | } |
fc36a67e | 8127 | |
eb3fce90 | 8128 | if (asterisk) { |
fc36a67e | 8129 | if (args) |
8130 | i = va_arg(*args, int); | |
8131 | else | |
eb3fce90 JH |
8132 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
8133 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 8134 | left |= (i < 0); |
8135 | width = (i < 0) ? -i : i; | |
fc36a67e | 8136 | } |
211dfcf1 | 8137 | gotwidth: |
fc36a67e | 8138 | |
8139 | /* PRECISION */ | |
46fc3d4c | 8140 | |
fc36a67e | 8141 | if (*q == '.') { |
8142 | q++; | |
8143 | if (*q == '*') { | |
211dfcf1 | 8144 | q++; |
7b8dd722 HS |
8145 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') |
8146 | goto unknown; | |
8147 | /* XXX: todo, support specified precision parameter */ | |
8148 | if (epix) | |
211dfcf1 | 8149 | goto unknown; |
46fc3d4c | 8150 | if (args) |
8151 | i = va_arg(*args, int); | |
8152 | else | |
eb3fce90 JH |
8153 | i = (ewix ? ewix <= svmax : svix < svmax) |
8154 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 8155 | precis = (i < 0) ? 0 : i; |
fc36a67e | 8156 | } |
8157 | else { | |
8158 | precis = 0; | |
8159 | while (isDIGIT(*q)) | |
8160 | precis = precis * 10 + (*q++ - '0'); | |
8161 | } | |
8162 | has_precis = TRUE; | |
8163 | } | |
46fc3d4c | 8164 | |
fc36a67e | 8165 | /* SIZE */ |
46fc3d4c | 8166 | |
fc36a67e | 8167 | switch (*q) { |
c623ac67 GS |
8168 | #ifdef WIN32 |
8169 | case 'I': /* Ix, I32x, and I64x */ | |
8170 | # ifdef WIN64 | |
8171 | if (q[1] == '6' && q[2] == '4') { | |
8172 | q += 3; | |
8173 | intsize = 'q'; | |
8174 | break; | |
8175 | } | |
8176 | # endif | |
8177 | if (q[1] == '3' && q[2] == '2') { | |
8178 | q += 3; | |
8179 | break; | |
8180 | } | |
8181 | # ifdef WIN64 | |
8182 | intsize = 'q'; | |
8183 | # endif | |
8184 | q++; | |
8185 | break; | |
8186 | #endif | |
9e5b023a | 8187 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
6f9bb7fd | 8188 | case 'L': /* Ld */ |
e5c81feb | 8189 | /* FALL THROUGH */ |
e5c81feb | 8190 | #ifdef HAS_QUAD |
6f9bb7fd | 8191 | case 'q': /* qd */ |
9e5b023a | 8192 | #endif |
6f9bb7fd GS |
8193 | intsize = 'q'; |
8194 | q++; | |
8195 | break; | |
8196 | #endif | |
fc36a67e | 8197 | case 'l': |
9e5b023a | 8198 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
205f51d8 | 8199 | if (*(q + 1) == 'l') { /* lld, llf */ |
fc36a67e | 8200 | intsize = 'q'; |
8201 | q += 2; | |
46fc3d4c | 8202 | break; |
cf2093f6 | 8203 | } |
fc36a67e | 8204 | #endif |
6f9bb7fd | 8205 | /* FALL THROUGH */ |
fc36a67e | 8206 | case 'h': |
cf2093f6 | 8207 | /* FALL THROUGH */ |
fc36a67e | 8208 | case 'V': |
8209 | intsize = *q++; | |
46fc3d4c | 8210 | break; |
8211 | } | |
8212 | ||
fc36a67e | 8213 | /* CONVERSION */ |
8214 | ||
211dfcf1 HS |
8215 | if (*q == '%') { |
8216 | eptr = q++; | |
8217 | elen = 1; | |
8218 | goto string; | |
8219 | } | |
8220 | ||
be75b157 HS |
8221 | if (vectorize) |
8222 | argsv = vecsv; | |
8223 | else if (!args) | |
211dfcf1 HS |
8224 | argsv = (efix ? efix <= svmax : svix < svmax) ? |
8225 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
8226 | ||
46fc3d4c | 8227 | switch (c = *q++) { |
8228 | ||
8229 | /* STRINGS */ | |
8230 | ||
46fc3d4c | 8231 | case 'c': |
be75b157 | 8232 | uv = (args && !vectorize) ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
8233 | if ((uv > 255 || |
8234 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 8235 | && !IN_BYTES) { |
dfe13c55 | 8236 | eptr = (char*)utf8buf; |
9041c2e3 | 8237 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
2cf2cfc6 | 8238 | is_utf8 = TRUE; |
7e2040f0 GS |
8239 | } |
8240 | else { | |
8241 | c = (char)uv; | |
8242 | eptr = &c; | |
8243 | elen = 1; | |
a0ed51b3 | 8244 | } |
46fc3d4c | 8245 | goto string; |
8246 | ||
46fc3d4c | 8247 | case 's': |
be75b157 | 8248 | if (args && !vectorize) { |
fc36a67e | 8249 | eptr = va_arg(*args, char*); |
c635e13b | 8250 | if (eptr) |
1d7c1841 GS |
8251 | #ifdef MACOS_TRADITIONAL |
8252 | /* On MacOS, %#s format is used for Pascal strings */ | |
8253 | if (alt) | |
8254 | elen = *eptr++; | |
8255 | else | |
8256 | #endif | |
c635e13b | 8257 | elen = strlen(eptr); |
8258 | else { | |
8259 | eptr = nullstr; | |
8260 | elen = sizeof nullstr - 1; | |
8261 | } | |
46fc3d4c | 8262 | } |
211dfcf1 | 8263 | else { |
7e2040f0 GS |
8264 | eptr = SvPVx(argsv, elen); |
8265 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
8266 | if (has_precis && precis < elen) { |
8267 | I32 p = precis; | |
7e2040f0 | 8268 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
8269 | precis = p; |
8270 | } | |
8271 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 8272 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 8273 | } |
2cf2cfc6 | 8274 | is_utf8 = TRUE; |
a0ed51b3 LW |
8275 | } |
8276 | } | |
46fc3d4c | 8277 | goto string; |
8278 | ||
fc36a67e | 8279 | case '_': |
8280 | /* | |
8281 | * The "%_" hack might have to be changed someday, | |
8282 | * if ISO or ANSI decide to use '_' for something. | |
8283 | * So we keep it hidden from users' code. | |
8284 | */ | |
be75b157 | 8285 | if (!args || vectorize) |
fc36a67e | 8286 | goto unknown; |
211dfcf1 | 8287 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
8288 | eptr = SvPVx(argsv, elen); |
8289 | if (DO_UTF8(argsv)) | |
2cf2cfc6 | 8290 | is_utf8 = TRUE; |
fc36a67e | 8291 | |
46fc3d4c | 8292 | string: |
b22c7a20 | 8293 | vectorize = FALSE; |
46fc3d4c | 8294 | if (has_precis && elen > precis) |
8295 | elen = precis; | |
8296 | break; | |
8297 | ||
8298 | /* INTEGERS */ | |
8299 | ||
fc36a67e | 8300 | case 'p': |
be75b157 | 8301 | if (alt || vectorize) |
c2e66d9e | 8302 | goto unknown; |
211dfcf1 | 8303 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 8304 | base = 16; |
8305 | goto integer; | |
8306 | ||
46fc3d4c | 8307 | case 'D': |
29fe7a80 | 8308 | #ifdef IV_IS_QUAD |
22f3ae8c | 8309 | intsize = 'q'; |
29fe7a80 | 8310 | #else |
46fc3d4c | 8311 | intsize = 'l'; |
29fe7a80 | 8312 | #endif |
46fc3d4c | 8313 | /* FALL THROUGH */ |
8314 | case 'd': | |
8315 | case 'i': | |
b22c7a20 | 8316 | if (vectorize) { |
ba210ebe | 8317 | STRLEN ulen; |
211dfcf1 HS |
8318 | if (!veclen) |
8319 | continue; | |
2cf2cfc6 A |
8320 | if (vec_utf8) |
8321 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
8322 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 8323 | else { |
e83d50c9 | 8324 | uv = *vecstr; |
b22c7a20 GS |
8325 | ulen = 1; |
8326 | } | |
8327 | vecstr += ulen; | |
8328 | veclen -= ulen; | |
e83d50c9 JP |
8329 | if (plus) |
8330 | esignbuf[esignlen++] = plus; | |
b22c7a20 GS |
8331 | } |
8332 | else if (args) { | |
46fc3d4c | 8333 | switch (intsize) { |
8334 | case 'h': iv = (short)va_arg(*args, int); break; | |
8335 | default: iv = va_arg(*args, int); break; | |
8336 | case 'l': iv = va_arg(*args, long); break; | |
fc36a67e | 8337 | case 'V': iv = va_arg(*args, IV); break; |
cf2093f6 JH |
8338 | #ifdef HAS_QUAD |
8339 | case 'q': iv = va_arg(*args, Quad_t); break; | |
8340 | #endif | |
46fc3d4c | 8341 | } |
8342 | } | |
8343 | else { | |
211dfcf1 | 8344 | iv = SvIVx(argsv); |
46fc3d4c | 8345 | switch (intsize) { |
8346 | case 'h': iv = (short)iv; break; | |
be28567c | 8347 | default: break; |
46fc3d4c | 8348 | case 'l': iv = (long)iv; break; |
fc36a67e | 8349 | case 'V': break; |
cf2093f6 JH |
8350 | #ifdef HAS_QUAD |
8351 | case 'q': iv = (Quad_t)iv; break; | |
8352 | #endif | |
46fc3d4c | 8353 | } |
8354 | } | |
e83d50c9 JP |
8355 | if ( !vectorize ) /* we already set uv above */ |
8356 | { | |
8357 | if (iv >= 0) { | |
8358 | uv = iv; | |
8359 | if (plus) | |
8360 | esignbuf[esignlen++] = plus; | |
8361 | } | |
8362 | else { | |
8363 | uv = -iv; | |
8364 | esignbuf[esignlen++] = '-'; | |
8365 | } | |
46fc3d4c | 8366 | } |
8367 | base = 10; | |
8368 | goto integer; | |
8369 | ||
fc36a67e | 8370 | case 'U': |
29fe7a80 | 8371 | #ifdef IV_IS_QUAD |
22f3ae8c | 8372 | intsize = 'q'; |
29fe7a80 | 8373 | #else |
fc36a67e | 8374 | intsize = 'l'; |
29fe7a80 | 8375 | #endif |
fc36a67e | 8376 | /* FALL THROUGH */ |
8377 | case 'u': | |
8378 | base = 10; | |
8379 | goto uns_integer; | |
8380 | ||
4f19785b WSI |
8381 | case 'b': |
8382 | base = 2; | |
8383 | goto uns_integer; | |
8384 | ||
46fc3d4c | 8385 | case 'O': |
29fe7a80 | 8386 | #ifdef IV_IS_QUAD |
22f3ae8c | 8387 | intsize = 'q'; |
29fe7a80 | 8388 | #else |
46fc3d4c | 8389 | intsize = 'l'; |
29fe7a80 | 8390 | #endif |
46fc3d4c | 8391 | /* FALL THROUGH */ |
8392 | case 'o': | |
8393 | base = 8; | |
8394 | goto uns_integer; | |
8395 | ||
8396 | case 'X': | |
46fc3d4c | 8397 | case 'x': |
8398 | base = 16; | |
46fc3d4c | 8399 | |
8400 | uns_integer: | |
b22c7a20 | 8401 | if (vectorize) { |
ba210ebe | 8402 | STRLEN ulen; |
b22c7a20 | 8403 | vector: |
211dfcf1 HS |
8404 | if (!veclen) |
8405 | continue; | |
2cf2cfc6 A |
8406 | if (vec_utf8) |
8407 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
8408 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 8409 | else { |
a05b299f | 8410 | uv = *vecstr; |
b22c7a20 GS |
8411 | ulen = 1; |
8412 | } | |
8413 | vecstr += ulen; | |
8414 | veclen -= ulen; | |
8415 | } | |
8416 | else if (args) { | |
46fc3d4c | 8417 | switch (intsize) { |
8418 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
8419 | default: uv = va_arg(*args, unsigned); break; | |
8420 | case 'l': uv = va_arg(*args, unsigned long); break; | |
fc36a67e | 8421 | case 'V': uv = va_arg(*args, UV); break; |
cf2093f6 JH |
8422 | #ifdef HAS_QUAD |
8423 | case 'q': uv = va_arg(*args, Quad_t); break; | |
8424 | #endif | |
46fc3d4c | 8425 | } |
8426 | } | |
8427 | else { | |
211dfcf1 | 8428 | uv = SvUVx(argsv); |
46fc3d4c | 8429 | switch (intsize) { |
8430 | case 'h': uv = (unsigned short)uv; break; | |
be28567c | 8431 | default: break; |
46fc3d4c | 8432 | case 'l': uv = (unsigned long)uv; break; |
fc36a67e | 8433 | case 'V': break; |
cf2093f6 JH |
8434 | #ifdef HAS_QUAD |
8435 | case 'q': uv = (Quad_t)uv; break; | |
8436 | #endif | |
46fc3d4c | 8437 | } |
8438 | } | |
8439 | ||
8440 | integer: | |
46fc3d4c | 8441 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 8442 | switch (base) { |
8443 | unsigned dig; | |
8444 | case 16: | |
c10ed8b9 HS |
8445 | if (!uv) |
8446 | alt = FALSE; | |
1d7c1841 GS |
8447 | p = (char*)((c == 'X') |
8448 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 8449 | do { |
8450 | dig = uv & 15; | |
8451 | *--eptr = p[dig]; | |
8452 | } while (uv >>= 4); | |
8453 | if (alt) { | |
46fc3d4c | 8454 | esignbuf[esignlen++] = '0'; |
fc36a67e | 8455 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 8456 | } |
fc36a67e | 8457 | break; |
8458 | case 8: | |
8459 | do { | |
8460 | dig = uv & 7; | |
8461 | *--eptr = '0' + dig; | |
8462 | } while (uv >>= 3); | |
8463 | if (alt && *eptr != '0') | |
8464 | *--eptr = '0'; | |
8465 | break; | |
4f19785b WSI |
8466 | case 2: |
8467 | do { | |
8468 | dig = uv & 1; | |
8469 | *--eptr = '0' + dig; | |
8470 | } while (uv >>= 1); | |
eda88b6d JH |
8471 | if (alt) { |
8472 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 8473 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 8474 | } |
4f19785b | 8475 | break; |
fc36a67e | 8476 | default: /* it had better be ten or less */ |
6bc102ca | 8477 | #if defined(PERL_Y2KWARN) |
e476b1b5 | 8478 | if (ckWARN(WARN_Y2K)) { |
6bc102ca GS |
8479 | STRLEN n; |
8480 | char *s = SvPV(sv,n); | |
8481 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
8482 | && (n == 2 || !isDIGIT(s[n-3]))) | |
8483 | { | |
9014280d | 8484 | Perl_warner(aTHX_ packWARN(WARN_Y2K), |
6bc102ca GS |
8485 | "Possible Y2K bug: %%%c %s", |
8486 | c, "format string following '19'"); | |
8487 | } | |
8488 | } | |
8489 | #endif | |
fc36a67e | 8490 | do { |
8491 | dig = uv % base; | |
8492 | *--eptr = '0' + dig; | |
8493 | } while (uv /= base); | |
8494 | break; | |
46fc3d4c | 8495 | } |
8496 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
8497 | if (has_precis) { |
8498 | if (precis > elen) | |
8499 | zeros = precis - elen; | |
8500 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
8501 | elen = 0; | |
8502 | } | |
46fc3d4c | 8503 | break; |
8504 | ||
8505 | /* FLOATING POINT */ | |
8506 | ||
fc36a67e | 8507 | case 'F': |
8508 | c = 'f'; /* maybe %F isn't supported here */ | |
8509 | /* FALL THROUGH */ | |
46fc3d4c | 8510 | case 'e': case 'E': |
fc36a67e | 8511 | case 'f': |
46fc3d4c | 8512 | case 'g': case 'G': |
8513 | ||
8514 | /* This is evil, but floating point is even more evil */ | |
8515 | ||
9e5b023a JH |
8516 | /* for SV-style calling, we can only get NV |
8517 | for C-style calling, we assume %f is double; | |
8518 | for simplicity we allow any of %Lf, %llf, %qf for long double | |
8519 | */ | |
8520 | switch (intsize) { | |
8521 | case 'V': | |
8522 | #if defined(USE_LONG_DOUBLE) | |
8523 | intsize = 'q'; | |
8524 | #endif | |
8525 | break; | |
8526 | default: | |
8527 | #if defined(USE_LONG_DOUBLE) | |
8528 | intsize = args ? 0 : 'q'; | |
8529 | #endif | |
8530 | break; | |
8531 | case 'q': | |
8532 | #if defined(HAS_LONG_DOUBLE) | |
8533 | break; | |
8534 | #else | |
8535 | /* FALL THROUGH */ | |
8536 | #endif | |
8537 | case 'h': | |
8538 | /* FALL THROUGH */ | |
8539 | case 'l': | |
8540 | goto unknown; | |
8541 | } | |
8542 | ||
8543 | /* now we need (long double) if intsize == 'q', else (double) */ | |
be75b157 | 8544 | nv = (args && !vectorize) ? |
35fff930 JH |
8545 | #if LONG_DOUBLESIZE > DOUBLESIZE |
8546 | intsize == 'q' ? | |
205f51d8 AS |
8547 | va_arg(*args, long double) : |
8548 | va_arg(*args, double) | |
35fff930 | 8549 | #else |
205f51d8 | 8550 | va_arg(*args, double) |
35fff930 | 8551 | #endif |
9e5b023a | 8552 | : SvNVx(argsv); |
fc36a67e | 8553 | |
8554 | need = 0; | |
be75b157 | 8555 | vectorize = FALSE; |
fc36a67e | 8556 | if (c != 'e' && c != 'E') { |
8557 | i = PERL_INT_MIN; | |
9e5b023a JH |
8558 | /* FIXME: if HAS_LONG_DOUBLE but not USE_LONG_DOUBLE this |
8559 | will cast our (long double) to (double) */ | |
73b309ea | 8560 | (void)Perl_frexp(nv, &i); |
fc36a67e | 8561 | if (i == PERL_INT_MIN) |
cea2e8a9 | 8562 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 8563 | if (i > 0) |
fc36a67e | 8564 | need = BIT_DIGITS(i); |
8565 | } | |
8566 | need += has_precis ? precis : 6; /* known default */ | |
20f6aaab | 8567 | |
fc36a67e | 8568 | if (need < width) |
8569 | need = width; | |
8570 | ||
20f6aaab AS |
8571 | #ifdef HAS_LDBL_SPRINTF_BUG |
8572 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
205f51d8 AS |
8573 | with sfio - Allen <allens@cpan.org> */ |
8574 | ||
8575 | # ifdef DBL_MAX | |
8576 | # define MY_DBL_MAX DBL_MAX | |
8577 | # else /* XXX guessing! HUGE_VAL may be defined as infinity, so not using */ | |
8578 | # if DOUBLESIZE >= 8 | |
8579 | # define MY_DBL_MAX 1.7976931348623157E+308L | |
8580 | # else | |
8581 | # define MY_DBL_MAX 3.40282347E+38L | |
8582 | # endif | |
8583 | # endif | |
8584 | ||
8585 | # ifdef HAS_LDBL_SPRINTF_BUG_LESS1 /* only between -1L & 1L - Allen */ | |
8586 | # define MY_DBL_MAX_BUG 1L | |
20f6aaab | 8587 | # else |
205f51d8 | 8588 | # define MY_DBL_MAX_BUG MY_DBL_MAX |
20f6aaab | 8589 | # endif |
20f6aaab | 8590 | |
205f51d8 AS |
8591 | # ifdef DBL_MIN |
8592 | # define MY_DBL_MIN DBL_MIN | |
8593 | # else /* XXX guessing! -Allen */ | |
8594 | # if DOUBLESIZE >= 8 | |
8595 | # define MY_DBL_MIN 2.2250738585072014E-308L | |
8596 | # else | |
8597 | # define MY_DBL_MIN 1.17549435E-38L | |
8598 | # endif | |
8599 | # endif | |
20f6aaab | 8600 | |
205f51d8 AS |
8601 | if ((intsize == 'q') && (c == 'f') && |
8602 | ((nv < MY_DBL_MAX_BUG) && (nv > -MY_DBL_MAX_BUG)) && | |
8603 | (need < DBL_DIG)) { | |
8604 | /* it's going to be short enough that | |
8605 | * long double precision is not needed */ | |
8606 | ||
8607 | if ((nv <= 0L) && (nv >= -0L)) | |
8608 | fix_ldbl_sprintf_bug = TRUE; /* 0 is 0 - easiest */ | |
8609 | else { | |
8610 | /* would use Perl_fp_class as a double-check but not | |
8611 | * functional on IRIX - see perl.h comments */ | |
8612 | ||
8613 | if ((nv >= MY_DBL_MIN) || (nv <= -MY_DBL_MIN)) { | |
8614 | /* It's within the range that a double can represent */ | |
8615 | #if defined(DBL_MAX) && !defined(DBL_MIN) | |
8616 | if ((nv >= ((long double)1/DBL_MAX)) || | |
8617 | (nv <= (-(long double)1/DBL_MAX))) | |
20f6aaab | 8618 | #endif |
205f51d8 | 8619 | fix_ldbl_sprintf_bug = TRUE; |
20f6aaab | 8620 | } |
205f51d8 AS |
8621 | } |
8622 | if (fix_ldbl_sprintf_bug == TRUE) { | |
8623 | double temp; | |
8624 | ||
8625 | intsize = 0; | |
8626 | temp = (double)nv; | |
8627 | nv = (NV)temp; | |
8628 | } | |
20f6aaab | 8629 | } |
205f51d8 AS |
8630 | |
8631 | # undef MY_DBL_MAX | |
8632 | # undef MY_DBL_MAX_BUG | |
8633 | # undef MY_DBL_MIN | |
8634 | ||
20f6aaab AS |
8635 | #endif /* HAS_LDBL_SPRINTF_BUG */ |
8636 | ||
46fc3d4c | 8637 | need += 20; /* fudge factor */ |
80252599 GS |
8638 | if (PL_efloatsize < need) { |
8639 | Safefree(PL_efloatbuf); | |
8640 | PL_efloatsize = need + 20; /* more fudge */ | |
8641 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 8642 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 8643 | } |
8644 | ||
8645 | eptr = ebuf + sizeof ebuf; | |
8646 | *--eptr = '\0'; | |
8647 | *--eptr = c; | |
9e5b023a JH |
8648 | /* FIXME: what to do if HAS_LONG_DOUBLE but not PERL_PRIfldbl? */ |
8649 | #if defined(HAS_LONG_DOUBLE) && defined(PERL_PRIfldbl) | |
8650 | if (intsize == 'q') { | |
e5c81feb JH |
8651 | /* Copy the one or more characters in a long double |
8652 | * format before the 'base' ([efgEFG]) character to | |
8653 | * the format string. */ | |
8654 | static char const prifldbl[] = PERL_PRIfldbl; | |
8655 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
8656 | while (p >= prifldbl) { *--eptr = *p--; } | |
cf2093f6 | 8657 | } |
65202027 | 8658 | #endif |
46fc3d4c | 8659 | if (has_precis) { |
8660 | base = precis; | |
8661 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8662 | *--eptr = '.'; | |
8663 | } | |
8664 | if (width) { | |
8665 | base = width; | |
8666 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8667 | } | |
8668 | if (fill == '0') | |
8669 | *--eptr = fill; | |
84902520 TB |
8670 | if (left) |
8671 | *--eptr = '-'; | |
46fc3d4c | 8672 | if (plus) |
8673 | *--eptr = plus; | |
8674 | if (alt) | |
8675 | *--eptr = '#'; | |
8676 | *--eptr = '%'; | |
8677 | ||
ff9121f8 JH |
8678 | /* No taint. Otherwise we are in the strange situation |
8679 | * where printf() taints but print($float) doesn't. | |
bda0f7a5 | 8680 | * --jhi */ |
9e5b023a JH |
8681 | #if defined(HAS_LONG_DOUBLE) |
8682 | if (intsize == 'q') | |
8683 | (void)sprintf(PL_efloatbuf, eptr, nv); | |
8684 | else | |
8685 | (void)sprintf(PL_efloatbuf, eptr, (double)nv); | |
8686 | #else | |
dd8482fc | 8687 | (void)sprintf(PL_efloatbuf, eptr, nv); |
9e5b023a | 8688 | #endif |
80252599 GS |
8689 | eptr = PL_efloatbuf; |
8690 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 8691 | break; |
8692 | ||
fc36a67e | 8693 | /* SPECIAL */ |
8694 | ||
8695 | case 'n': | |
8696 | i = SvCUR(sv) - origlen; | |
be75b157 | 8697 | if (args && !vectorize) { |
c635e13b | 8698 | switch (intsize) { |
8699 | case 'h': *(va_arg(*args, short*)) = i; break; | |
8700 | default: *(va_arg(*args, int*)) = i; break; | |
8701 | case 'l': *(va_arg(*args, long*)) = i; break; | |
8702 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
8703 | #ifdef HAS_QUAD |
8704 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
8705 | #endif | |
c635e13b | 8706 | } |
fc36a67e | 8707 | } |
9dd79c3f | 8708 | else |
211dfcf1 | 8709 | sv_setuv_mg(argsv, (UV)i); |
be75b157 | 8710 | vectorize = FALSE; |
fc36a67e | 8711 | continue; /* not "break" */ |
8712 | ||
8713 | /* UNKNOWN */ | |
8714 | ||
46fc3d4c | 8715 | default: |
fc36a67e | 8716 | unknown: |
b22c7a20 | 8717 | vectorize = FALSE; |
599cee73 | 8718 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 8719 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 8720 | SV *msg = sv_newmortal(); |
cea2e8a9 | 8721 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ", |
533c011a | 8722 | (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); |
0f4b6630 | 8723 | if (c) { |
0f4b6630 | 8724 | if (isPRINT(c)) |
1c846c1f | 8725 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
8726 | "\"%%%c\"", c & 0xFF); |
8727 | else | |
8728 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 8729 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 8730 | (UV)c & 0xFF); |
0f4b6630 | 8731 | } else |
c635e13b | 8732 | sv_catpv(msg, "end of string"); |
9014280d | 8733 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 8734 | } |
fb73857a | 8735 | |
8736 | /* output mangled stuff ... */ | |
8737 | if (c == '\0') | |
8738 | --q; | |
46fc3d4c | 8739 | eptr = p; |
8740 | elen = q - p; | |
fb73857a | 8741 | |
8742 | /* ... right here, because formatting flags should not apply */ | |
8743 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8744 | p = SvEND(sv); | |
4459522c | 8745 | Copy(eptr, p, elen, char); |
fb73857a | 8746 | p += elen; |
8747 | *p = '\0'; | |
8748 | SvCUR(sv) = p - SvPVX(sv); | |
8749 | continue; /* not "break" */ | |
46fc3d4c | 8750 | } |
8751 | ||
d2876be5 JH |
8752 | if (is_utf8 != has_utf8) { |
8753 | if (is_utf8) { | |
8754 | if (SvCUR(sv)) | |
8755 | sv_utf8_upgrade(sv); | |
8756 | } | |
8757 | else { | |
8758 | SV *nsv = sv_2mortal(newSVpvn(eptr, elen)); | |
8759 | sv_utf8_upgrade(nsv); | |
8760 | eptr = SvPVX(nsv); | |
8761 | elen = SvCUR(nsv); | |
8762 | } | |
8763 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8764 | p = SvEND(sv); | |
8765 | *p = '\0'; | |
8766 | } | |
8767 | ||
fc36a67e | 8768 | have = esignlen + zeros + elen; |
46fc3d4c | 8769 | need = (have > width ? have : width); |
8770 | gap = need - have; | |
8771 | ||
b22c7a20 | 8772 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 8773 | p = SvEND(sv); |
8774 | if (esignlen && fill == '0') { | |
eb160463 | 8775 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 8776 | *p++ = esignbuf[i]; |
8777 | } | |
8778 | if (gap && !left) { | |
8779 | memset(p, fill, gap); | |
8780 | p += gap; | |
8781 | } | |
8782 | if (esignlen && fill != '0') { | |
eb160463 | 8783 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 8784 | *p++ = esignbuf[i]; |
8785 | } | |
fc36a67e | 8786 | if (zeros) { |
8787 | for (i = zeros; i; i--) | |
8788 | *p++ = '0'; | |
8789 | } | |
46fc3d4c | 8790 | if (elen) { |
4459522c | 8791 | Copy(eptr, p, elen, char); |
46fc3d4c | 8792 | p += elen; |
8793 | } | |
8794 | if (gap && left) { | |
8795 | memset(p, ' ', gap); | |
8796 | p += gap; | |
8797 | } | |
b22c7a20 GS |
8798 | if (vectorize) { |
8799 | if (veclen) { | |
4459522c | 8800 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
8801 | p += dotstrlen; |
8802 | } | |
8803 | else | |
8804 | vectorize = FALSE; /* done iterating over vecstr */ | |
8805 | } | |
2cf2cfc6 A |
8806 | if (is_utf8) |
8807 | has_utf8 = TRUE; | |
8808 | if (has_utf8) | |
7e2040f0 | 8809 | SvUTF8_on(sv); |
46fc3d4c | 8810 | *p = '\0'; |
8811 | SvCUR(sv) = p - SvPVX(sv); | |
b22c7a20 GS |
8812 | if (vectorize) { |
8813 | esignlen = 0; | |
8814 | goto vector; | |
8815 | } | |
46fc3d4c | 8816 | } |
8817 | } | |
51371543 | 8818 | |
645c22ef DM |
8819 | /* ========================================================================= |
8820 | ||
8821 | =head1 Cloning an interpreter | |
8822 | ||
8823 | All the macros and functions in this section are for the private use of | |
8824 | the main function, perl_clone(). | |
8825 | ||
8826 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
8827 | During the course of a cloning, a hash table is used to map old addresses | |
8828 | to new addresses. The table is created and manipulated with the | |
8829 | ptr_table_* functions. | |
8830 | ||
8831 | =cut | |
8832 | ||
8833 | ============================================================================*/ | |
8834 | ||
8835 | ||
1d7c1841 GS |
8836 | #if defined(USE_ITHREADS) |
8837 | ||
1d7c1841 GS |
8838 | #ifndef GpREFCNT_inc |
8839 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
8840 | #endif | |
8841 | ||
8842 | ||
d2d73c3e AB |
8843 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
8844 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
8845 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8846 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
8847 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8848 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
8849 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8850 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
8851 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8852 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
8853 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
8854 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
8855 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
8cf8f3d1 | 8856 | |
d2d73c3e | 8857 | |
d2f185dc AMS |
8858 | /* Duplicate a regexp. Required reading: pregcomp() and pregfree() in |
8859 | regcomp.c. AMS 20010712 */ | |
645c22ef | 8860 | |
1d7c1841 | 8861 | REGEXP * |
a8fc9800 | 8862 | Perl_re_dup(pTHX_ REGEXP *r, CLONE_PARAMS *param) |
1d7c1841 | 8863 | { |
d2f185dc AMS |
8864 | REGEXP *ret; |
8865 | int i, len, npar; | |
8866 | struct reg_substr_datum *s; | |
8867 | ||
8868 | if (!r) | |
8869 | return (REGEXP *)NULL; | |
8870 | ||
8871 | if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) | |
8872 | return ret; | |
8873 | ||
8874 | len = r->offsets[0]; | |
8875 | npar = r->nparens+1; | |
8876 | ||
8877 | Newc(0, ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); | |
8878 | Copy(r->program, ret->program, len+1, regnode); | |
8879 | ||
8880 | New(0, ret->startp, npar, I32); | |
8881 | Copy(r->startp, ret->startp, npar, I32); | |
8882 | New(0, ret->endp, npar, I32); | |
8883 | Copy(r->startp, ret->startp, npar, I32); | |
8884 | ||
d2f185dc AMS |
8885 | New(0, ret->substrs, 1, struct reg_substr_data); |
8886 | for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { | |
8887 | s->min_offset = r->substrs->data[i].min_offset; | |
8888 | s->max_offset = r->substrs->data[i].max_offset; | |
8889 | s->substr = sv_dup_inc(r->substrs->data[i].substr, param); | |
33b8afdf | 8890 | s->utf8_substr = sv_dup_inc(r->substrs->data[i].utf8_substr, param); |
d2f185dc AMS |
8891 | } |
8892 | ||
70612e96 | 8893 | ret->regstclass = NULL; |
d2f185dc AMS |
8894 | if (r->data) { |
8895 | struct reg_data *d; | |
8896 | int count = r->data->count; | |
8897 | ||
8898 | Newc(0, d, sizeof(struct reg_data) + count*sizeof(void *), | |
8899 | char, struct reg_data); | |
8900 | New(0, d->what, count, U8); | |
8901 | ||
8902 | d->count = count; | |
8903 | for (i = 0; i < count; i++) { | |
8904 | d->what[i] = r->data->what[i]; | |
8905 | switch (d->what[i]) { | |
8906 | case 's': | |
8907 | d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); | |
8908 | break; | |
8909 | case 'p': | |
8910 | d->data[i] = av_dup_inc((AV *)r->data->data[i], param); | |
8911 | break; | |
8912 | case 'f': | |
8913 | /* This is cheating. */ | |
8914 | New(0, d->data[i], 1, struct regnode_charclass_class); | |
8915 | StructCopy(r->data->data[i], d->data[i], | |
8916 | struct regnode_charclass_class); | |
70612e96 | 8917 | ret->regstclass = (regnode*)d->data[i]; |
d2f185dc AMS |
8918 | break; |
8919 | case 'o': | |
33773810 AMS |
8920 | /* Compiled op trees are readonly, and can thus be |
8921 | shared without duplication. */ | |
9b978d73 DM |
8922 | d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); |
8923 | break; | |
d2f185dc AMS |
8924 | case 'n': |
8925 | d->data[i] = r->data->data[i]; | |
8926 | break; | |
8927 | } | |
8928 | } | |
8929 | ||
8930 | ret->data = d; | |
8931 | } | |
8932 | else | |
8933 | ret->data = NULL; | |
8934 | ||
8935 | New(0, ret->offsets, 2*len+1, U32); | |
8936 | Copy(r->offsets, ret->offsets, 2*len+1, U32); | |
8937 | ||
8938 | ret->precomp = SAVEPV(r->precomp); | |
d2f185dc AMS |
8939 | ret->refcnt = r->refcnt; |
8940 | ret->minlen = r->minlen; | |
8941 | ret->prelen = r->prelen; | |
8942 | ret->nparens = r->nparens; | |
8943 | ret->lastparen = r->lastparen; | |
8944 | ret->lastcloseparen = r->lastcloseparen; | |
8945 | ret->reganch = r->reganch; | |
8946 | ||
70612e96 RG |
8947 | ret->sublen = r->sublen; |
8948 | ||
8949 | if (RX_MATCH_COPIED(ret)) | |
8950 | ret->subbeg = SAVEPV(r->subbeg); | |
8951 | else | |
8952 | ret->subbeg = Nullch; | |
8953 | ||
d2f185dc AMS |
8954 | ptr_table_store(PL_ptr_table, r, ret); |
8955 | return ret; | |
1d7c1841 GS |
8956 | } |
8957 | ||
d2d73c3e | 8958 | /* duplicate a file handle */ |
645c22ef | 8959 | |
1d7c1841 | 8960 | PerlIO * |
a8fc9800 | 8961 | Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) |
1d7c1841 GS |
8962 | { |
8963 | PerlIO *ret; | |
8964 | if (!fp) | |
8965 | return (PerlIO*)NULL; | |
8966 | ||
8967 | /* look for it in the table first */ | |
8968 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
8969 | if (ret) | |
8970 | return ret; | |
8971 | ||
8972 | /* create anew and remember what it is */ | |
ecdeb87c | 8973 | ret = PerlIO_fdupopen(aTHX_ fp, param, PERLIO_DUP_CLONE); |
1d7c1841 GS |
8974 | ptr_table_store(PL_ptr_table, fp, ret); |
8975 | return ret; | |
8976 | } | |
8977 | ||
645c22ef DM |
8978 | /* duplicate a directory handle */ |
8979 | ||
1d7c1841 GS |
8980 | DIR * |
8981 | Perl_dirp_dup(pTHX_ DIR *dp) | |
8982 | { | |
8983 | if (!dp) | |
8984 | return (DIR*)NULL; | |
8985 | /* XXX TODO */ | |
8986 | return dp; | |
8987 | } | |
8988 | ||
ff276b08 | 8989 | /* duplicate a typeglob */ |
645c22ef | 8990 | |
1d7c1841 | 8991 | GP * |
a8fc9800 | 8992 | Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) |
1d7c1841 GS |
8993 | { |
8994 | GP *ret; | |
8995 | if (!gp) | |
8996 | return (GP*)NULL; | |
8997 | /* look for it in the table first */ | |
8998 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
8999 | if (ret) | |
9000 | return ret; | |
9001 | ||
9002 | /* create anew and remember what it is */ | |
9003 | Newz(0, ret, 1, GP); | |
9004 | ptr_table_store(PL_ptr_table, gp, ret); | |
9005 | ||
9006 | /* clone */ | |
9007 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
9008 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
9009 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
9010 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
9011 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
9012 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
9013 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
9014 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
9015 | ret->gp_cvgen = gp->gp_cvgen; |
9016 | ret->gp_flags = gp->gp_flags; | |
9017 | ret->gp_line = gp->gp_line; | |
9018 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
9019 | return ret; | |
9020 | } | |
9021 | ||
645c22ef DM |
9022 | /* duplicate a chain of magic */ |
9023 | ||
1d7c1841 | 9024 | MAGIC * |
a8fc9800 | 9025 | Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS* param) |
1d7c1841 | 9026 | { |
cb359b41 JH |
9027 | MAGIC *mgprev = (MAGIC*)NULL; |
9028 | MAGIC *mgret; | |
1d7c1841 GS |
9029 | if (!mg) |
9030 | return (MAGIC*)NULL; | |
9031 | /* look for it in the table first */ | |
9032 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
9033 | if (mgret) | |
9034 | return mgret; | |
9035 | ||
9036 | for (; mg; mg = mg->mg_moremagic) { | |
9037 | MAGIC *nmg; | |
9038 | Newz(0, nmg, 1, MAGIC); | |
cb359b41 | 9039 | if (mgprev) |
1d7c1841 | 9040 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
9041 | else |
9042 | mgret = nmg; | |
1d7c1841 GS |
9043 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
9044 | nmg->mg_private = mg->mg_private; | |
9045 | nmg->mg_type = mg->mg_type; | |
9046 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 9047 | if (mg->mg_type == PERL_MAGIC_qr) { |
d2f185dc | 9048 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj, param); |
1d7c1841 | 9049 | } |
05bd4103 JH |
9050 | else if(mg->mg_type == PERL_MAGIC_backref) { |
9051 | AV *av = (AV*) mg->mg_obj; | |
9052 | SV **svp; | |
9053 | I32 i; | |
9054 | nmg->mg_obj = (SV*)newAV(); | |
9055 | svp = AvARRAY(av); | |
9056 | i = AvFILLp(av); | |
9057 | while (i >= 0) { | |
9058 | av_push((AV*)nmg->mg_obj,sv_dup(svp[i],param)); | |
9059 | i--; | |
9060 | } | |
9061 | } | |
1d7c1841 GS |
9062 | else { |
9063 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
9064 | ? sv_dup_inc(mg->mg_obj, param) |
9065 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
9066 | } |
9067 | nmg->mg_len = mg->mg_len; | |
9068 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 9069 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
68795e93 | 9070 | if (mg->mg_len > 0) { |
1d7c1841 | 9071 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); |
14befaf4 DM |
9072 | if (mg->mg_type == PERL_MAGIC_overload_table && |
9073 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
9074 | { | |
1d7c1841 GS |
9075 | AMT *amtp = (AMT*)mg->mg_ptr; |
9076 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
9077 | I32 i; | |
9078 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 9079 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
9080 | } |
9081 | } | |
9082 | } | |
9083 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 9084 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 | 9085 | } |
68795e93 NIS |
9086 | if ((mg->mg_flags & MGf_DUP) && mg->mg_virtual && mg->mg_virtual->svt_dup) { |
9087 | CALL_FPTR(nmg->mg_virtual->svt_dup)(aTHX_ nmg, param); | |
9088 | } | |
1d7c1841 GS |
9089 | mgprev = nmg; |
9090 | } | |
9091 | return mgret; | |
9092 | } | |
9093 | ||
645c22ef DM |
9094 | /* create a new pointer-mapping table */ |
9095 | ||
1d7c1841 GS |
9096 | PTR_TBL_t * |
9097 | Perl_ptr_table_new(pTHX) | |
9098 | { | |
9099 | PTR_TBL_t *tbl; | |
9100 | Newz(0, tbl, 1, PTR_TBL_t); | |
9101 | tbl->tbl_max = 511; | |
9102 | tbl->tbl_items = 0; | |
9103 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
9104 | return tbl; | |
9105 | } | |
9106 | ||
645c22ef DM |
9107 | /* map an existing pointer using a table */ |
9108 | ||
1d7c1841 GS |
9109 | void * |
9110 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
9111 | { | |
9112 | PTR_TBL_ENT_t *tblent; | |
d2a79402 | 9113 | UV hash = PTR2UV(sv); |
1d7c1841 GS |
9114 | assert(tbl); |
9115 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
9116 | for (; tblent; tblent = tblent->next) { | |
9117 | if (tblent->oldval == sv) | |
9118 | return tblent->newval; | |
9119 | } | |
9120 | return (void*)NULL; | |
9121 | } | |
9122 | ||
645c22ef DM |
9123 | /* add a new entry to a pointer-mapping table */ |
9124 | ||
1d7c1841 GS |
9125 | void |
9126 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
9127 | { | |
9128 | PTR_TBL_ENT_t *tblent, **otblent; | |
9129 | /* XXX this may be pessimal on platforms where pointers aren't good | |
9130 | * hash values e.g. if they grow faster in the most significant | |
9131 | * bits */ | |
d2a79402 | 9132 | UV hash = PTR2UV(oldv); |
1d7c1841 GS |
9133 | bool i = 1; |
9134 | ||
9135 | assert(tbl); | |
9136 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
9137 | for (tblent = *otblent; tblent; i=0, tblent = tblent->next) { | |
9138 | if (tblent->oldval == oldv) { | |
9139 | tblent->newval = newv; | |
1d7c1841 GS |
9140 | return; |
9141 | } | |
9142 | } | |
9143 | Newz(0, tblent, 1, PTR_TBL_ENT_t); | |
9144 | tblent->oldval = oldv; | |
9145 | tblent->newval = newv; | |
9146 | tblent->next = *otblent; | |
9147 | *otblent = tblent; | |
9148 | tbl->tbl_items++; | |
9149 | if (i && tbl->tbl_items > tbl->tbl_max) | |
9150 | ptr_table_split(tbl); | |
9151 | } | |
9152 | ||
645c22ef DM |
9153 | /* double the hash bucket size of an existing ptr table */ |
9154 | ||
1d7c1841 GS |
9155 | void |
9156 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
9157 | { | |
9158 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
9159 | UV oldsize = tbl->tbl_max + 1; | |
9160 | UV newsize = oldsize * 2; | |
9161 | UV i; | |
9162 | ||
9163 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
9164 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
9165 | tbl->tbl_max = --newsize; | |
9166 | tbl->tbl_ary = ary; | |
9167 | for (i=0; i < oldsize; i++, ary++) { | |
9168 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
9169 | if (!*ary) | |
9170 | continue; | |
9171 | curentp = ary + oldsize; | |
9172 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
d2a79402 | 9173 | if ((newsize & PTR2UV(ent->oldval)) != i) { |
1d7c1841 GS |
9174 | *entp = ent->next; |
9175 | ent->next = *curentp; | |
9176 | *curentp = ent; | |
9177 | continue; | |
9178 | } | |
9179 | else | |
9180 | entp = &ent->next; | |
9181 | } | |
9182 | } | |
9183 | } | |
9184 | ||
645c22ef DM |
9185 | /* remove all the entries from a ptr table */ |
9186 | ||
a0739874 DM |
9187 | void |
9188 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
9189 | { | |
9190 | register PTR_TBL_ENT_t **array; | |
9191 | register PTR_TBL_ENT_t *entry; | |
9192 | register PTR_TBL_ENT_t *oentry = Null(PTR_TBL_ENT_t*); | |
9193 | UV riter = 0; | |
9194 | UV max; | |
9195 | ||
9196 | if (!tbl || !tbl->tbl_items) { | |
9197 | return; | |
9198 | } | |
9199 | ||
9200 | array = tbl->tbl_ary; | |
9201 | entry = array[0]; | |
9202 | max = tbl->tbl_max; | |
9203 | ||
9204 | for (;;) { | |
9205 | if (entry) { | |
9206 | oentry = entry; | |
9207 | entry = entry->next; | |
9208 | Safefree(oentry); | |
9209 | } | |
9210 | if (!entry) { | |
9211 | if (++riter > max) { | |
9212 | break; | |
9213 | } | |
9214 | entry = array[riter]; | |
9215 | } | |
9216 | } | |
9217 | ||
9218 | tbl->tbl_items = 0; | |
9219 | } | |
9220 | ||
645c22ef DM |
9221 | /* clear and free a ptr table */ |
9222 | ||
a0739874 DM |
9223 | void |
9224 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
9225 | { | |
9226 | if (!tbl) { | |
9227 | return; | |
9228 | } | |
9229 | ptr_table_clear(tbl); | |
9230 | Safefree(tbl->tbl_ary); | |
9231 | Safefree(tbl); | |
9232 | } | |
9233 | ||
1d7c1841 GS |
9234 | #ifdef DEBUGGING |
9235 | char *PL_watch_pvx; | |
9236 | #endif | |
9237 | ||
645c22ef DM |
9238 | /* attempt to make everything in the typeglob readonly */ |
9239 | ||
5bd07a3d | 9240 | STATIC SV * |
59b40662 | 9241 | S_gv_share(pTHX_ SV *sstr, CLONE_PARAMS *param) |
5bd07a3d DM |
9242 | { |
9243 | GV *gv = (GV*)sstr; | |
59b40662 | 9244 | SV *sv = ¶m->proto_perl->Isv_no; /* just need SvREADONLY-ness */ |
5bd07a3d DM |
9245 | |
9246 | if (GvIO(gv) || GvFORM(gv)) { | |
7fb37951 | 9247 | GvUNIQUE_off(gv); /* GvIOs cannot be shared. nor can GvFORMs */ |
5bd07a3d DM |
9248 | } |
9249 | else if (!GvCV(gv)) { | |
9250 | GvCV(gv) = (CV*)sv; | |
9251 | } | |
9252 | else { | |
9253 | /* CvPADLISTs cannot be shared */ | |
37e20706 | 9254 | if (!SvREADONLY(GvCV(gv)) && !CvXSUB(GvCV(gv))) { |
7fb37951 | 9255 | GvUNIQUE_off(gv); |
5bd07a3d DM |
9256 | } |
9257 | } | |
9258 | ||
7fb37951 | 9259 | if (!GvUNIQUE(gv)) { |
5bd07a3d DM |
9260 | #if 0 |
9261 | PerlIO_printf(Perl_debug_log, "gv_share: unable to share %s::%s\n", | |
9262 | HvNAME(GvSTASH(gv)), GvNAME(gv)); | |
9263 | #endif | |
9264 | return Nullsv; | |
9265 | } | |
9266 | ||
4411f3b6 | 9267 | /* |
5bd07a3d DM |
9268 | * write attempts will die with |
9269 | * "Modification of a read-only value attempted" | |
9270 | */ | |
9271 | if (!GvSV(gv)) { | |
9272 | GvSV(gv) = sv; | |
9273 | } | |
9274 | else { | |
9275 | SvREADONLY_on(GvSV(gv)); | |
9276 | } | |
9277 | ||
9278 | if (!GvAV(gv)) { | |
9279 | GvAV(gv) = (AV*)sv; | |
9280 | } | |
9281 | else { | |
9282 | SvREADONLY_on(GvAV(gv)); | |
9283 | } | |
9284 | ||
9285 | if (!GvHV(gv)) { | |
9286 | GvHV(gv) = (HV*)sv; | |
9287 | } | |
9288 | else { | |
9289 | SvREADONLY_on(GvAV(gv)); | |
9290 | } | |
9291 | ||
9292 | return sstr; /* he_dup() will SvREFCNT_inc() */ | |
9293 | } | |
9294 | ||
645c22ef DM |
9295 | /* duplicate an SV of any type (including AV, HV etc) */ |
9296 | ||
83841fad NIS |
9297 | void |
9298 | Perl_rvpv_dup(pTHX_ SV *dstr, SV *sstr, CLONE_PARAMS* param) | |
9299 | { | |
9300 | if (SvROK(sstr)) { | |
d3d0e6f1 | 9301 | SvRV(dstr) = SvWEAKREF(sstr) |
83841fad NIS |
9302 | ? sv_dup(SvRV(sstr), param) |
9303 | : sv_dup_inc(SvRV(sstr), param); | |
9304 | } | |
9305 | else if (SvPVX(sstr)) { | |
9306 | /* Has something there */ | |
9307 | if (SvLEN(sstr)) { | |
68795e93 | 9308 | /* Normal PV - clone whole allocated space */ |
83841fad | 9309 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); |
d3d0e6f1 NC |
9310 | if (SvREADONLY(sstr) && SvFAKE(sstr)) { |
9311 | /* Not that normal - actually sstr is copy on write. | |
9312 | But we are a true, independant SV, so: */ | |
9313 | SvREADONLY_off(dstr); | |
9314 | SvFAKE_off(dstr); | |
9315 | } | |
68795e93 | 9316 | } |
83841fad NIS |
9317 | else { |
9318 | /* Special case - not normally malloced for some reason */ | |
9319 | if (SvREADONLY(sstr) && SvFAKE(sstr)) { | |
9320 | /* A "shared" PV - clone it as unshared string */ | |
9321 | SvFAKE_off(dstr); | |
9322 | SvREADONLY_off(dstr); | |
9323 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvCUR(sstr)); | |
9324 | } | |
9325 | else { | |
9326 | /* Some other special case - random pointer */ | |
9327 | SvPVX(dstr) = SvPVX(sstr); | |
d3d0e6f1 | 9328 | } |
83841fad NIS |
9329 | } |
9330 | } | |
9331 | else { | |
9332 | /* Copy the Null */ | |
9333 | SvPVX(dstr) = SvPVX(sstr); | |
9334 | } | |
9335 | } | |
9336 | ||
1d7c1841 | 9337 | SV * |
a8fc9800 | 9338 | Perl_sv_dup(pTHX_ SV *sstr, CLONE_PARAMS* param) |
1d7c1841 | 9339 | { |
1d7c1841 GS |
9340 | SV *dstr; |
9341 | ||
9342 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
9343 | return Nullsv; | |
9344 | /* look for it in the table first */ | |
9345 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
9346 | if (dstr) | |
9347 | return dstr; | |
9348 | ||
0405e91e AB |
9349 | if(param->flags & CLONEf_JOIN_IN) { |
9350 | /** We are joining here so we don't want do clone | |
9351 | something that is bad **/ | |
9352 | ||
9353 | if(SvTYPE(sstr) == SVt_PVHV && | |
9354 | HvNAME(sstr)) { | |
9355 | /** don't clone stashes if they already exist **/ | |
9356 | HV* old_stash = gv_stashpv(HvNAME(sstr),0); | |
9357 | return (SV*) old_stash; | |
9358 | } | |
9359 | } | |
9360 | ||
1d7c1841 GS |
9361 | /* create anew and remember what it is */ |
9362 | new_SV(dstr); | |
9363 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
9364 | ||
9365 | /* clone */ | |
9366 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
9367 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
9368 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
9369 | ||
9370 | #ifdef DEBUGGING | |
9371 | if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) | |
9372 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", | |
9373 | PL_watch_pvx, SvPVX(sstr)); | |
9374 | #endif | |
9375 | ||
9376 | switch (SvTYPE(sstr)) { | |
9377 | case SVt_NULL: | |
9378 | SvANY(dstr) = NULL; | |
9379 | break; | |
9380 | case SVt_IV: | |
9381 | SvANY(dstr) = new_XIV(); | |
9382 | SvIVX(dstr) = SvIVX(sstr); | |
9383 | break; | |
9384 | case SVt_NV: | |
9385 | SvANY(dstr) = new_XNV(); | |
9386 | SvNVX(dstr) = SvNVX(sstr); | |
9387 | break; | |
9388 | case SVt_RV: | |
9389 | SvANY(dstr) = new_XRV(); | |
83841fad | 9390 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9391 | break; |
9392 | case SVt_PV: | |
9393 | SvANY(dstr) = new_XPV(); | |
9394 | SvCUR(dstr) = SvCUR(sstr); | |
9395 | SvLEN(dstr) = SvLEN(sstr); | |
83841fad | 9396 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9397 | break; |
9398 | case SVt_PVIV: | |
9399 | SvANY(dstr) = new_XPVIV(); | |
9400 | SvCUR(dstr) = SvCUR(sstr); | |
9401 | SvLEN(dstr) = SvLEN(sstr); | |
9402 | SvIVX(dstr) = SvIVX(sstr); | |
83841fad | 9403 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9404 | break; |
9405 | case SVt_PVNV: | |
9406 | SvANY(dstr) = new_XPVNV(); | |
9407 | SvCUR(dstr) = SvCUR(sstr); | |
9408 | SvLEN(dstr) = SvLEN(sstr); | |
9409 | SvIVX(dstr) = SvIVX(sstr); | |
9410 | SvNVX(dstr) = SvNVX(sstr); | |
83841fad | 9411 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9412 | break; |
9413 | case SVt_PVMG: | |
9414 | SvANY(dstr) = new_XPVMG(); | |
9415 | SvCUR(dstr) = SvCUR(sstr); | |
9416 | SvLEN(dstr) = SvLEN(sstr); | |
9417 | SvIVX(dstr) = SvIVX(sstr); | |
9418 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9419 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9420 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9421 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9422 | break; |
9423 | case SVt_PVBM: | |
9424 | SvANY(dstr) = new_XPVBM(); | |
9425 | SvCUR(dstr) = SvCUR(sstr); | |
9426 | SvLEN(dstr) = SvLEN(sstr); | |
9427 | SvIVX(dstr) = SvIVX(sstr); | |
9428 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9429 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9430 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9431 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9432 | BmRARE(dstr) = BmRARE(sstr); |
9433 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
9434 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
9435 | break; | |
9436 | case SVt_PVLV: | |
9437 | SvANY(dstr) = new_XPVLV(); | |
9438 | SvCUR(dstr) = SvCUR(sstr); | |
9439 | SvLEN(dstr) = SvLEN(sstr); | |
9440 | SvIVX(dstr) = SvIVX(sstr); | |
9441 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9442 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9443 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9444 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9445 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ |
9446 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
d2d73c3e | 9447 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); |
1d7c1841 GS |
9448 | LvTYPE(dstr) = LvTYPE(sstr); |
9449 | break; | |
9450 | case SVt_PVGV: | |
7fb37951 | 9451 | if (GvUNIQUE((GV*)sstr)) { |
5bd07a3d | 9452 | SV *share; |
59b40662 | 9453 | if ((share = gv_share(sstr, param))) { |
5bd07a3d DM |
9454 | del_SV(dstr); |
9455 | dstr = share; | |
37e20706 | 9456 | ptr_table_store(PL_ptr_table, sstr, dstr); |
5bd07a3d DM |
9457 | #if 0 |
9458 | PerlIO_printf(Perl_debug_log, "sv_dup: sharing %s::%s\n", | |
9459 | HvNAME(GvSTASH(share)), GvNAME(share)); | |
9460 | #endif | |
9461 | break; | |
9462 | } | |
9463 | } | |
1d7c1841 GS |
9464 | SvANY(dstr) = new_XPVGV(); |
9465 | SvCUR(dstr) = SvCUR(sstr); | |
9466 | SvLEN(dstr) = SvLEN(sstr); | |
9467 | SvIVX(dstr) = SvIVX(sstr); | |
9468 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9469 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9470 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9471 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9472 | GvNAMELEN(dstr) = GvNAMELEN(sstr); |
9473 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 9474 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 9475 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 9476 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
9477 | (void)GpREFCNT_inc(GvGP(dstr)); |
9478 | break; | |
9479 | case SVt_PVIO: | |
9480 | SvANY(dstr) = new_XPVIO(); | |
9481 | SvCUR(dstr) = SvCUR(sstr); | |
9482 | SvLEN(dstr) = SvLEN(sstr); | |
9483 | SvIVX(dstr) = SvIVX(sstr); | |
9484 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9485 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9486 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9487 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
a8fc9800 | 9488 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9489 | if (IoOFP(sstr) == IoIFP(sstr)) |
9490 | IoOFP(dstr) = IoIFP(dstr); | |
9491 | else | |
a8fc9800 | 9492 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9493 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
9494 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
9495 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
9496 | else | |
9497 | IoDIRP(dstr) = IoDIRP(sstr); | |
9498 | IoLINES(dstr) = IoLINES(sstr); | |
9499 | IoPAGE(dstr) = IoPAGE(sstr); | |
9500 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
9501 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
9502 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); | |
d2d73c3e | 9503 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); |
1d7c1841 | 9504 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
d2d73c3e | 9505 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); |
1d7c1841 | 9506 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
d2d73c3e | 9507 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); |
1d7c1841 GS |
9508 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
9509 | IoTYPE(dstr) = IoTYPE(sstr); | |
9510 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
9511 | break; | |
9512 | case SVt_PVAV: | |
9513 | SvANY(dstr) = new_XPVAV(); | |
9514 | SvCUR(dstr) = SvCUR(sstr); | |
9515 | SvLEN(dstr) = SvLEN(sstr); | |
9516 | SvIVX(dstr) = SvIVX(sstr); | |
9517 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9518 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9519 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
9520 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); | |
1d7c1841 GS |
9521 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
9522 | if (AvARRAY((AV*)sstr)) { | |
9523 | SV **dst_ary, **src_ary; | |
9524 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
9525 | ||
9526 | src_ary = AvARRAY((AV*)sstr); | |
9527 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
9528 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
9529 | SvPVX(dstr) = (char*)dst_ary; | |
9530 | AvALLOC((AV*)dstr) = dst_ary; | |
9531 | if (AvREAL((AV*)sstr)) { | |
9532 | while (items-- > 0) | |
d2d73c3e | 9533 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
9534 | } |
9535 | else { | |
9536 | while (items-- > 0) | |
d2d73c3e | 9537 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
9538 | } |
9539 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
9540 | while (items-- > 0) { | |
9541 | *dst_ary++ = &PL_sv_undef; | |
9542 | } | |
9543 | } | |
9544 | else { | |
9545 | SvPVX(dstr) = Nullch; | |
9546 | AvALLOC((AV*)dstr) = (SV**)NULL; | |
9547 | } | |
9548 | break; | |
9549 | case SVt_PVHV: | |
9550 | SvANY(dstr) = new_XPVHV(); | |
9551 | SvCUR(dstr) = SvCUR(sstr); | |
9552 | SvLEN(dstr) = SvLEN(sstr); | |
9553 | SvIVX(dstr) = SvIVX(sstr); | |
9554 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9555 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9556 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
9557 | HvRITER((HV*)dstr) = HvRITER((HV*)sstr); |
9558 | if (HvARRAY((HV*)sstr)) { | |
1d7c1841 GS |
9559 | STRLEN i = 0; |
9560 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
9561 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
9562 | Newz(0, dxhv->xhv_array, | |
9563 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); | |
9564 | while (i <= sxhv->xhv_max) { | |
9565 | ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], | |
eb160463 GS |
9566 | (bool)!!HvSHAREKEYS(sstr), |
9567 | param); | |
1d7c1841 GS |
9568 | ++i; |
9569 | } | |
eb160463 GS |
9570 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, |
9571 | (bool)!!HvSHAREKEYS(sstr), param); | |
1d7c1841 GS |
9572 | } |
9573 | else { | |
9574 | SvPVX(dstr) = Nullch; | |
9575 | HvEITER((HV*)dstr) = (HE*)NULL; | |
9576 | } | |
9577 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
9578 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
c43294b8 | 9579 | /* Record stashes for possible cloning in Perl_clone(). */ |
6676db26 | 9580 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 9581 | av_push(param->stashes, dstr); |
1d7c1841 GS |
9582 | break; |
9583 | case SVt_PVFM: | |
9584 | SvANY(dstr) = new_XPVFM(); | |
9585 | FmLINES(dstr) = FmLINES(sstr); | |
9586 | goto dup_pvcv; | |
9587 | /* NOTREACHED */ | |
9588 | case SVt_PVCV: | |
9589 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 9590 | dup_pvcv: |
1d7c1841 GS |
9591 | SvCUR(dstr) = SvCUR(sstr); |
9592 | SvLEN(dstr) = SvLEN(sstr); | |
9593 | SvIVX(dstr) = SvIVX(sstr); | |
9594 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9595 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9596 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9597 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
d2d73c3e | 9598 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 GS |
9599 | CvSTART(dstr) = CvSTART(sstr); |
9600 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); | |
9601 | CvXSUB(dstr) = CvXSUB(sstr); | |
9602 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
01485f8b DM |
9603 | if (CvCONST(sstr)) { |
9604 | CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(sstr)) ? | |
9605 | SvREFCNT_inc(CvXSUBANY(sstr).any_ptr) : | |
9606 | sv_dup_inc(CvXSUBANY(sstr).any_ptr, param); | |
9607 | } | |
d2d73c3e AB |
9608 | CvGV(dstr) = gv_dup(CvGV(sstr), param); |
9609 | if (param->flags & CLONEf_COPY_STACKS) { | |
9610 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
9611 | } else { | |
9612 | CvDEPTH(dstr) = 0; | |
9613 | } | |
dd2155a4 | 9614 | PAD_DUP(CvPADLIST(dstr), CvPADLIST(sstr), param); |
7dafbf52 DM |
9615 | CvOUTSIDE_SEQ(dstr) = CvOUTSIDE_SEQ(sstr); |
9616 | CvOUTSIDE(dstr) = | |
9617 | CvWEAKOUTSIDE(sstr) | |
9618 | ? cv_dup( CvOUTSIDE(sstr), param) | |
9619 | : cv_dup_inc(CvOUTSIDE(sstr), param); | |
1d7c1841 | 9620 | CvFLAGS(dstr) = CvFLAGS(sstr); |
54356c7d | 9621 | CvFILE(dstr) = CvXSUB(sstr) ? CvFILE(sstr) : SAVEPV(CvFILE(sstr)); |
1d7c1841 GS |
9622 | break; |
9623 | default: | |
c803eecc | 9624 | Perl_croak(aTHX_ "Bizarre SvTYPE [%" IVdf "]", (IV)SvTYPE(sstr)); |
1d7c1841 GS |
9625 | break; |
9626 | } | |
9627 | ||
9628 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
9629 | ++PL_sv_objcount; | |
9630 | ||
9631 | return dstr; | |
d2d73c3e | 9632 | } |
1d7c1841 | 9633 | |
645c22ef DM |
9634 | /* duplicate a context */ |
9635 | ||
1d7c1841 | 9636 | PERL_CONTEXT * |
a8fc9800 | 9637 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) |
1d7c1841 GS |
9638 | { |
9639 | PERL_CONTEXT *ncxs; | |
9640 | ||
9641 | if (!cxs) | |
9642 | return (PERL_CONTEXT*)NULL; | |
9643 | ||
9644 | /* look for it in the table first */ | |
9645 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
9646 | if (ncxs) | |
9647 | return ncxs; | |
9648 | ||
9649 | /* create anew and remember what it is */ | |
9650 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
9651 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
9652 | ||
9653 | while (ix >= 0) { | |
9654 | PERL_CONTEXT *cx = &cxs[ix]; | |
9655 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
9656 | ncx->cx_type = cx->cx_type; | |
9657 | if (CxTYPE(cx) == CXt_SUBST) { | |
9658 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
9659 | } | |
9660 | else { | |
9661 | ncx->blk_oldsp = cx->blk_oldsp; | |
9662 | ncx->blk_oldcop = cx->blk_oldcop; | |
9663 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
9664 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
9665 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
9666 | ncx->blk_oldpm = cx->blk_oldpm; | |
9667 | ncx->blk_gimme = cx->blk_gimme; | |
9668 | switch (CxTYPE(cx)) { | |
9669 | case CXt_SUB: | |
9670 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
9671 | ? cv_dup_inc(cx->blk_sub.cv, param) |
9672 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 9673 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 9674 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 9675 | : Nullav); |
d2d73c3e | 9676 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
9677 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
9678 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
9679 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
9680 | break; | |
9681 | case CXt_EVAL: | |
9682 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
9683 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
b47cad08 | 9684 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param); |
1d7c1841 | 9685 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 9686 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
1d7c1841 GS |
9687 | break; |
9688 | case CXt_LOOP: | |
9689 | ncx->blk_loop.label = cx->blk_loop.label; | |
9690 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
9691 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
9692 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
9693 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
9694 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
9695 | ? cx->blk_loop.iterdata | |
d2d73c3e | 9696 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
f3548bdc DM |
9697 | ncx->blk_loop.oldcomppad |
9698 | = (PAD*)ptr_table_fetch(PL_ptr_table, | |
9699 | cx->blk_loop.oldcomppad); | |
d2d73c3e AB |
9700 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
9701 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
9702 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
9703 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
9704 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
9705 | break; | |
9706 | case CXt_FORMAT: | |
d2d73c3e AB |
9707 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
9708 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
9709 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 GS |
9710 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
9711 | break; | |
9712 | case CXt_BLOCK: | |
9713 | case CXt_NULL: | |
9714 | break; | |
9715 | } | |
9716 | } | |
9717 | --ix; | |
9718 | } | |
9719 | return ncxs; | |
9720 | } | |
9721 | ||
645c22ef DM |
9722 | /* duplicate a stack info structure */ |
9723 | ||
1d7c1841 | 9724 | PERL_SI * |
a8fc9800 | 9725 | Perl_si_dup(pTHX_ PERL_SI *si, CLONE_PARAMS* param) |
1d7c1841 GS |
9726 | { |
9727 | PERL_SI *nsi; | |
9728 | ||
9729 | if (!si) | |
9730 | return (PERL_SI*)NULL; | |
9731 | ||
9732 | /* look for it in the table first */ | |
9733 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
9734 | if (nsi) | |
9735 | return nsi; | |
9736 | ||
9737 | /* create anew and remember what it is */ | |
9738 | Newz(56, nsi, 1, PERL_SI); | |
9739 | ptr_table_store(PL_ptr_table, si, nsi); | |
9740 | ||
d2d73c3e | 9741 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
9742 | nsi->si_cxix = si->si_cxix; |
9743 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 9744 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 9745 | nsi->si_type = si->si_type; |
d2d73c3e AB |
9746 | nsi->si_prev = si_dup(si->si_prev, param); |
9747 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
9748 | nsi->si_markoff = si->si_markoff; |
9749 | ||
9750 | return nsi; | |
9751 | } | |
9752 | ||
9753 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
9754 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
9755 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
9756 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
9757 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
9758 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
38d8b13e HS |
9759 | #define POPBOOL(ss,ix) ((ss)[--(ix)].any_bool) |
9760 | #define TOPBOOL(ss,ix) ((ss)[ix].any_bool) | |
1d7c1841 GS |
9761 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) |
9762 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
9763 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
9764 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
9765 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
9766 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
9767 | ||
9768 | /* XXXXX todo */ | |
9769 | #define pv_dup_inc(p) SAVEPV(p) | |
9770 | #define pv_dup(p) SAVEPV(p) | |
9771 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
9772 | ||
645c22ef DM |
9773 | /* map any object to the new equivent - either something in the |
9774 | * ptr table, or something in the interpreter structure | |
9775 | */ | |
9776 | ||
1d7c1841 GS |
9777 | void * |
9778 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
9779 | { | |
9780 | void *ret; | |
9781 | ||
9782 | if (!v) | |
9783 | return (void*)NULL; | |
9784 | ||
9785 | /* look for it in the table first */ | |
9786 | ret = ptr_table_fetch(PL_ptr_table, v); | |
9787 | if (ret) | |
9788 | return ret; | |
9789 | ||
9790 | /* see if it is part of the interpreter structure */ | |
9791 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
acfe0abc | 9792 | ret = (void*)(((char*)aTHX) + (((char*)v) - (char*)proto_perl)); |
05ec9bb3 | 9793 | else { |
1d7c1841 | 9794 | ret = v; |
05ec9bb3 | 9795 | } |
1d7c1841 GS |
9796 | |
9797 | return ret; | |
9798 | } | |
9799 | ||
645c22ef DM |
9800 | /* duplicate the save stack */ |
9801 | ||
1d7c1841 | 9802 | ANY * |
a8fc9800 | 9803 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) |
1d7c1841 GS |
9804 | { |
9805 | ANY *ss = proto_perl->Tsavestack; | |
9806 | I32 ix = proto_perl->Tsavestack_ix; | |
9807 | I32 max = proto_perl->Tsavestack_max; | |
9808 | ANY *nss; | |
9809 | SV *sv; | |
9810 | GV *gv; | |
9811 | AV *av; | |
9812 | HV *hv; | |
9813 | void* ptr; | |
9814 | int intval; | |
9815 | long longval; | |
9816 | GP *gp; | |
9817 | IV iv; | |
9818 | I32 i; | |
c4e33207 | 9819 | char *c = NULL; |
1d7c1841 | 9820 | void (*dptr) (void*); |
acfe0abc | 9821 | void (*dxptr) (pTHX_ void*); |
e977893f | 9822 | OP *o; |
1d7c1841 GS |
9823 | |
9824 | Newz(54, nss, max, ANY); | |
9825 | ||
9826 | while (ix > 0) { | |
9827 | i = POPINT(ss,ix); | |
9828 | TOPINT(nss,ix) = i; | |
9829 | switch (i) { | |
9830 | case SAVEt_ITEM: /* normal string */ | |
9831 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9832 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9833 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9834 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9835 | break; |
9836 | case SAVEt_SV: /* scalar reference */ | |
9837 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9838 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9839 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9840 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 9841 | break; |
f4dd75d9 GS |
9842 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
9843 | c = (char*)POPPTR(ss,ix); | |
9844 | TOPPTR(nss,ix) = pv_dup(c); | |
9845 | ptr = POPPTR(ss,ix); | |
9846 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9847 | break; | |
05ec9bb3 NIS |
9848 | case SAVEt_SHARED_PVREF: /* char* in shared space */ |
9849 | c = (char*)POPPTR(ss,ix); | |
9850 | TOPPTR(nss,ix) = savesharedpv(c); | |
9851 | ptr = POPPTR(ss,ix); | |
9852 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9853 | break; | |
1d7c1841 GS |
9854 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
9855 | case SAVEt_SVREF: /* scalar reference */ | |
9856 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9857 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9858 | ptr = POPPTR(ss,ix); |
9859 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
9860 | break; | |
9861 | case SAVEt_AV: /* array reference */ | |
9862 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9863 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 9864 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9865 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9866 | break; |
9867 | case SAVEt_HV: /* hash reference */ | |
9868 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9869 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 9870 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9871 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9872 | break; |
9873 | case SAVEt_INT: /* int reference */ | |
9874 | ptr = POPPTR(ss,ix); | |
9875 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9876 | intval = (int)POPINT(ss,ix); | |
9877 | TOPINT(nss,ix) = intval; | |
9878 | break; | |
9879 | case SAVEt_LONG: /* long reference */ | |
9880 | ptr = POPPTR(ss,ix); | |
9881 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9882 | longval = (long)POPLONG(ss,ix); | |
9883 | TOPLONG(nss,ix) = longval; | |
9884 | break; | |
9885 | case SAVEt_I32: /* I32 reference */ | |
9886 | case SAVEt_I16: /* I16 reference */ | |
9887 | case SAVEt_I8: /* I8 reference */ | |
9888 | ptr = POPPTR(ss,ix); | |
9889 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9890 | i = POPINT(ss,ix); | |
9891 | TOPINT(nss,ix) = i; | |
9892 | break; | |
9893 | case SAVEt_IV: /* IV reference */ | |
9894 | ptr = POPPTR(ss,ix); | |
9895 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9896 | iv = POPIV(ss,ix); | |
9897 | TOPIV(nss,ix) = iv; | |
9898 | break; | |
9899 | case SAVEt_SPTR: /* SV* reference */ | |
9900 | ptr = POPPTR(ss,ix); | |
9901 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9902 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9903 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
9904 | break; |
9905 | case SAVEt_VPTR: /* random* reference */ | |
9906 | ptr = POPPTR(ss,ix); | |
9907 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9908 | ptr = POPPTR(ss,ix); | |
9909 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9910 | break; | |
9911 | case SAVEt_PPTR: /* char* reference */ | |
9912 | ptr = POPPTR(ss,ix); | |
9913 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9914 | c = (char*)POPPTR(ss,ix); | |
9915 | TOPPTR(nss,ix) = pv_dup(c); | |
9916 | break; | |
9917 | case SAVEt_HPTR: /* HV* reference */ | |
9918 | ptr = POPPTR(ss,ix); | |
9919 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9920 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9921 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
9922 | break; |
9923 | case SAVEt_APTR: /* AV* reference */ | |
9924 | ptr = POPPTR(ss,ix); | |
9925 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9926 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9927 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
9928 | break; |
9929 | case SAVEt_NSTAB: | |
9930 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 9931 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9932 | break; |
9933 | case SAVEt_GP: /* scalar reference */ | |
9934 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 9935 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
9936 | (void)GpREFCNT_inc(gp); |
9937 | gv = (GV*)POPPTR(ss,ix); | |
2ed3c8fc | 9938 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 GS |
9939 | c = (char*)POPPTR(ss,ix); |
9940 | TOPPTR(nss,ix) = pv_dup(c); | |
9941 | iv = POPIV(ss,ix); | |
9942 | TOPIV(nss,ix) = iv; | |
9943 | iv = POPIV(ss,ix); | |
9944 | TOPIV(nss,ix) = iv; | |
9945 | break; | |
9946 | case SAVEt_FREESV: | |
26d9b02f | 9947 | case SAVEt_MORTALIZESV: |
1d7c1841 | 9948 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9949 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9950 | break; |
9951 | case SAVEt_FREEOP: | |
9952 | ptr = POPPTR(ss,ix); | |
9953 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
9954 | /* these are assumed to be refcounted properly */ | |
9955 | switch (((OP*)ptr)->op_type) { | |
9956 | case OP_LEAVESUB: | |
9957 | case OP_LEAVESUBLV: | |
9958 | case OP_LEAVEEVAL: | |
9959 | case OP_LEAVE: | |
9960 | case OP_SCOPE: | |
9961 | case OP_LEAVEWRITE: | |
e977893f GS |
9962 | TOPPTR(nss,ix) = ptr; |
9963 | o = (OP*)ptr; | |
9964 | OpREFCNT_inc(o); | |
1d7c1841 GS |
9965 | break; |
9966 | default: | |
9967 | TOPPTR(nss,ix) = Nullop; | |
9968 | break; | |
9969 | } | |
9970 | } | |
9971 | else | |
9972 | TOPPTR(nss,ix) = Nullop; | |
9973 | break; | |
9974 | case SAVEt_FREEPV: | |
9975 | c = (char*)POPPTR(ss,ix); | |
9976 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9977 | break; | |
9978 | case SAVEt_CLEARSV: | |
9979 | longval = POPLONG(ss,ix); | |
9980 | TOPLONG(nss,ix) = longval; | |
9981 | break; | |
9982 | case SAVEt_DELETE: | |
9983 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9984 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9985 | c = (char*)POPPTR(ss,ix); |
9986 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9987 | i = POPINT(ss,ix); | |
9988 | TOPINT(nss,ix) = i; | |
9989 | break; | |
9990 | case SAVEt_DESTRUCTOR: | |
9991 | ptr = POPPTR(ss,ix); | |
9992 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9993 | dptr = POPDPTR(ss,ix); | |
ef75a179 | 9994 | TOPDPTR(nss,ix) = (void (*)(void*))any_dup((void *)dptr, proto_perl); |
1d7c1841 GS |
9995 | break; |
9996 | case SAVEt_DESTRUCTOR_X: | |
9997 | ptr = POPPTR(ss,ix); | |
9998 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9999 | dxptr = POPDXPTR(ss,ix); | |
acfe0abc | 10000 | TOPDXPTR(nss,ix) = (void (*)(pTHX_ void*))any_dup((void *)dxptr, proto_perl); |
1d7c1841 GS |
10001 | break; |
10002 | case SAVEt_REGCONTEXT: | |
10003 | case SAVEt_ALLOC: | |
10004 | i = POPINT(ss,ix); | |
10005 | TOPINT(nss,ix) = i; | |
10006 | ix -= i; | |
10007 | break; | |
10008 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
10009 | i = POPINT(ss,ix); | |
10010 | TOPINT(nss,ix) = i; | |
10011 | break; | |
10012 | case SAVEt_AELEM: /* array element */ | |
10013 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10014 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10015 | i = POPINT(ss,ix); |
10016 | TOPINT(nss,ix) = i; | |
10017 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10018 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
10019 | break; |
10020 | case SAVEt_HELEM: /* hash element */ | |
10021 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10022 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10023 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 10024 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10025 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 10026 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
10027 | break; |
10028 | case SAVEt_OP: | |
10029 | ptr = POPPTR(ss,ix); | |
10030 | TOPPTR(nss,ix) = ptr; | |
10031 | break; | |
10032 | case SAVEt_HINTS: | |
10033 | i = POPINT(ss,ix); | |
10034 | TOPINT(nss,ix) = i; | |
10035 | break; | |
c4410b1b GS |
10036 | case SAVEt_COMPPAD: |
10037 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10038 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 10039 | break; |
c3564e5c GS |
10040 | case SAVEt_PADSV: |
10041 | longval = (long)POPLONG(ss,ix); | |
10042 | TOPLONG(nss,ix) = longval; | |
10043 | ptr = POPPTR(ss,ix); | |
10044 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10045 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10046 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 10047 | break; |
a1bb4754 | 10048 | case SAVEt_BOOL: |
38d8b13e | 10049 | ptr = POPPTR(ss,ix); |
b9609c01 | 10050 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); |
38d8b13e | 10051 | longval = (long)POPBOOL(ss,ix); |
b9609c01 | 10052 | TOPBOOL(nss,ix) = (bool)longval; |
a1bb4754 | 10053 | break; |
1d7c1841 GS |
10054 | default: |
10055 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
10056 | } | |
10057 | } | |
10058 | ||
10059 | return nss; | |
10060 | } | |
10061 | ||
645c22ef DM |
10062 | /* |
10063 | =for apidoc perl_clone | |
10064 | ||
10065 | Create and return a new interpreter by cloning the current one. | |
10066 | ||
6a78b4db AB |
10067 | perl_clone takes these flags as paramters: |
10068 | ||
10069 | CLONEf_COPY_STACKS - is used to, well, copy the stacks also, | |
10070 | without it we only clone the data and zero the stacks, | |
10071 | with it we copy the stacks and the new perl interpreter is | |
10072 | ready to run at the exact same point as the previous one. | |
10073 | The pseudo-fork code uses COPY_STACKS while the | |
10074 | threads->new doesn't. | |
10075 | ||
10076 | CLONEf_KEEP_PTR_TABLE | |
10077 | perl_clone keeps a ptr_table with the pointer of the old | |
10078 | variable as a key and the new variable as a value, | |
10079 | this allows it to check if something has been cloned and not | |
10080 | clone it again but rather just use the value and increase the | |
10081 | refcount. If KEEP_PTR_TABLE is not set then perl_clone will kill | |
10082 | the ptr_table using the function | |
10083 | C<ptr_table_free(PL_ptr_table); PL_ptr_table = NULL;>, | |
10084 | reason to keep it around is if you want to dup some of your own | |
10085 | variable who are outside the graph perl scans, example of this | |
10086 | code is in threads.xs create | |
10087 | ||
10088 | CLONEf_CLONE_HOST | |
10089 | This is a win32 thing, it is ignored on unix, it tells perls | |
10090 | win32host code (which is c++) to clone itself, this is needed on | |
10091 | win32 if you want to run two threads at the same time, | |
10092 | if you just want to do some stuff in a separate perl interpreter | |
10093 | and then throw it away and return to the original one, | |
10094 | you don't need to do anything. | |
10095 | ||
645c22ef DM |
10096 | =cut |
10097 | */ | |
10098 | ||
10099 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
3fc56081 NK |
10100 | EXTERN_C PerlInterpreter * |
10101 | perl_clone_host(PerlInterpreter* proto_perl, UV flags); | |
645c22ef | 10102 | |
1d7c1841 GS |
10103 | PerlInterpreter * |
10104 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
10105 | { | |
1d7c1841 | 10106 | #ifdef PERL_IMPLICIT_SYS |
c43294b8 AB |
10107 | |
10108 | /* perlhost.h so we need to call into it | |
10109 | to clone the host, CPerlHost should have a c interface, sky */ | |
10110 | ||
10111 | if (flags & CLONEf_CLONE_HOST) { | |
10112 | return perl_clone_host(proto_perl,flags); | |
10113 | } | |
10114 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
10115 | proto_perl->IMem, |
10116 | proto_perl->IMemShared, | |
10117 | proto_perl->IMemParse, | |
10118 | proto_perl->IEnv, | |
10119 | proto_perl->IStdIO, | |
10120 | proto_perl->ILIO, | |
10121 | proto_perl->IDir, | |
10122 | proto_perl->ISock, | |
10123 | proto_perl->IProc); | |
10124 | } | |
10125 | ||
10126 | PerlInterpreter * | |
10127 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
10128 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
10129 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
10130 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
10131 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
10132 | struct IPerlProc* ipP) | |
10133 | { | |
10134 | /* XXX many of the string copies here can be optimized if they're | |
10135 | * constants; they need to be allocated as common memory and just | |
10136 | * their pointers copied. */ | |
10137 | ||
10138 | IV i; | |
64aa0685 GS |
10139 | CLONE_PARAMS clone_params; |
10140 | CLONE_PARAMS* param = &clone_params; | |
d2d73c3e | 10141 | |
1d7c1841 | 10142 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
ba869deb | 10143 | PERL_SET_THX(my_perl); |
1d7c1841 | 10144 | |
acfe0abc | 10145 | # ifdef DEBUGGING |
a4530404 | 10146 | Poison(my_perl, 1, PerlInterpreter); |
1d7c1841 GS |
10147 | PL_markstack = 0; |
10148 | PL_scopestack = 0; | |
10149 | PL_savestack = 0; | |
10150 | PL_retstack = 0; | |
66fe0623 | 10151 | PL_sig_pending = 0; |
25596c82 | 10152 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
acfe0abc | 10153 | # else /* !DEBUGGING */ |
1d7c1841 | 10154 | Zero(my_perl, 1, PerlInterpreter); |
acfe0abc | 10155 | # endif /* DEBUGGING */ |
1d7c1841 GS |
10156 | |
10157 | /* host pointers */ | |
10158 | PL_Mem = ipM; | |
10159 | PL_MemShared = ipMS; | |
10160 | PL_MemParse = ipMP; | |
10161 | PL_Env = ipE; | |
10162 | PL_StdIO = ipStd; | |
10163 | PL_LIO = ipLIO; | |
10164 | PL_Dir = ipD; | |
10165 | PL_Sock = ipS; | |
10166 | PL_Proc = ipP; | |
1d7c1841 GS |
10167 | #else /* !PERL_IMPLICIT_SYS */ |
10168 | IV i; | |
64aa0685 GS |
10169 | CLONE_PARAMS clone_params; |
10170 | CLONE_PARAMS* param = &clone_params; | |
1d7c1841 | 10171 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 10172 | PERL_SET_THX(my_perl); |
1d7c1841 | 10173 | |
d2d73c3e AB |
10174 | |
10175 | ||
1d7c1841 | 10176 | # ifdef DEBUGGING |
a4530404 | 10177 | Poison(my_perl, 1, PerlInterpreter); |
1d7c1841 GS |
10178 | PL_markstack = 0; |
10179 | PL_scopestack = 0; | |
10180 | PL_savestack = 0; | |
10181 | PL_retstack = 0; | |
66fe0623 | 10182 | PL_sig_pending = 0; |
25596c82 | 10183 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
1d7c1841 GS |
10184 | # else /* !DEBUGGING */ |
10185 | Zero(my_perl, 1, PerlInterpreter); | |
10186 | # endif /* DEBUGGING */ | |
10187 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 10188 | param->flags = flags; |
59b40662 | 10189 | param->proto_perl = proto_perl; |
1d7c1841 GS |
10190 | |
10191 | /* arena roots */ | |
10192 | PL_xiv_arenaroot = NULL; | |
10193 | PL_xiv_root = NULL; | |
612f20c3 | 10194 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 10195 | PL_xnv_root = NULL; |
612f20c3 | 10196 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 10197 | PL_xrv_root = NULL; |
612f20c3 | 10198 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 10199 | PL_xpv_root = NULL; |
612f20c3 | 10200 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 10201 | PL_xpviv_root = NULL; |
612f20c3 | 10202 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 10203 | PL_xpvnv_root = NULL; |
612f20c3 | 10204 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 10205 | PL_xpvcv_root = NULL; |
612f20c3 | 10206 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 10207 | PL_xpvav_root = NULL; |
612f20c3 | 10208 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 10209 | PL_xpvhv_root = NULL; |
612f20c3 | 10210 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 10211 | PL_xpvmg_root = NULL; |
612f20c3 | 10212 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 10213 | PL_xpvlv_root = NULL; |
612f20c3 | 10214 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 10215 | PL_xpvbm_root = NULL; |
612f20c3 | 10216 | PL_he_arenaroot = NULL; |
1d7c1841 GS |
10217 | PL_he_root = NULL; |
10218 | PL_nice_chunk = NULL; | |
10219 | PL_nice_chunk_size = 0; | |
10220 | PL_sv_count = 0; | |
10221 | PL_sv_objcount = 0; | |
10222 | PL_sv_root = Nullsv; | |
10223 | PL_sv_arenaroot = Nullsv; | |
10224 | ||
10225 | PL_debug = proto_perl->Idebug; | |
10226 | ||
e5dd39fc | 10227 | #ifdef USE_REENTRANT_API |
59bd0823 | 10228 | Perl_reentrant_init(aTHX); |
e5dd39fc AB |
10229 | #endif |
10230 | ||
1d7c1841 GS |
10231 | /* create SV map for pointer relocation */ |
10232 | PL_ptr_table = ptr_table_new(); | |
10233 | ||
10234 | /* initialize these special pointers as early as possible */ | |
10235 | SvANY(&PL_sv_undef) = NULL; | |
10236 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
10237 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
10238 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
10239 | ||
1d7c1841 | 10240 | SvANY(&PL_sv_no) = new_XPVNV(); |
1d7c1841 GS |
10241 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
10242 | SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
10243 | SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0); | |
10244 | SvCUR(&PL_sv_no) = 0; | |
10245 | SvLEN(&PL_sv_no) = 1; | |
10246 | SvNVX(&PL_sv_no) = 0; | |
10247 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); | |
10248 | ||
1d7c1841 | 10249 | SvANY(&PL_sv_yes) = new_XPVNV(); |
1d7c1841 GS |
10250 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
10251 | SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
10252 | SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1); | |
10253 | SvCUR(&PL_sv_yes) = 1; | |
10254 | SvLEN(&PL_sv_yes) = 2; | |
10255 | SvNVX(&PL_sv_yes) = 1; | |
10256 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); | |
10257 | ||
05ec9bb3 | 10258 | /* create (a non-shared!) shared string table */ |
1d7c1841 GS |
10259 | PL_strtab = newHV(); |
10260 | HvSHAREKEYS_off(PL_strtab); | |
10261 | hv_ksplit(PL_strtab, 512); | |
10262 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); | |
10263 | ||
05ec9bb3 NIS |
10264 | PL_compiling = proto_perl->Icompiling; |
10265 | ||
10266 | /* These two PVs will be free'd special way so must set them same way op.c does */ | |
10267 | PL_compiling.cop_stashpv = savesharedpv(PL_compiling.cop_stashpv); | |
10268 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_stashpv, PL_compiling.cop_stashpv); | |
10269 | ||
10270 | PL_compiling.cop_file = savesharedpv(PL_compiling.cop_file); | |
10271 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_file, PL_compiling.cop_file); | |
10272 | ||
1d7c1841 GS |
10273 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); |
10274 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 10275 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 10276 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 10277 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
10278 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
10279 | ||
10280 | /* pseudo environmental stuff */ | |
10281 | PL_origargc = proto_perl->Iorigargc; | |
e2975953 | 10282 | PL_origargv = proto_perl->Iorigargv; |
d2d73c3e | 10283 | |
d2d73c3e AB |
10284 | param->stashes = newAV(); /* Setup array of objects to call clone on */ |
10285 | ||
a1ea730d | 10286 | #ifdef PERLIO_LAYERS |
3a1ee7e8 NIS |
10287 | /* Clone PerlIO tables as soon as we can handle general xx_dup() */ |
10288 | PerlIO_clone(aTHX_ proto_perl, param); | |
a1ea730d | 10289 | #endif |
d2d73c3e AB |
10290 | |
10291 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
10292 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
10293 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 10294 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
10295 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
10296 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
10297 | |
10298 | /* switches */ | |
10299 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 10300 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
10301 | PL_localpatches = proto_perl->Ilocalpatches; |
10302 | PL_splitstr = proto_perl->Isplitstr; | |
10303 | PL_preprocess = proto_perl->Ipreprocess; | |
10304 | PL_minus_n = proto_perl->Iminus_n; | |
10305 | PL_minus_p = proto_perl->Iminus_p; | |
10306 | PL_minus_l = proto_perl->Iminus_l; | |
10307 | PL_minus_a = proto_perl->Iminus_a; | |
10308 | PL_minus_F = proto_perl->Iminus_F; | |
10309 | PL_doswitches = proto_perl->Idoswitches; | |
10310 | PL_dowarn = proto_perl->Idowarn; | |
10311 | PL_doextract = proto_perl->Idoextract; | |
10312 | PL_sawampersand = proto_perl->Isawampersand; | |
10313 | PL_unsafe = proto_perl->Iunsafe; | |
10314 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 10315 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
10316 | PL_perldb = proto_perl->Iperldb; |
10317 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
1cbb0781 | 10318 | PL_exit_flags = proto_perl->Iexit_flags; |
1d7c1841 GS |
10319 | |
10320 | /* magical thingies */ | |
10321 | /* XXX time(&PL_basetime) when asked for? */ | |
10322 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 10323 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
10324 | |
10325 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
10326 | PL_multiline = proto_perl->Imultiline; | |
10327 | PL_statusvalue = proto_perl->Istatusvalue; | |
10328 | #ifdef VMS | |
10329 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
10330 | #endif | |
0a378802 | 10331 | PL_encoding = sv_dup(proto_perl->Iencoding, param); |
1d7c1841 | 10332 | |
4a4c6fe3 | 10333 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
10334 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
10335 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
4a4c6fe3 | 10336 | |
d2f185dc AMS |
10337 | /* Clone the regex array */ |
10338 | PL_regex_padav = newAV(); | |
10339 | { | |
10340 | I32 len = av_len((AV*)proto_perl->Iregex_padav); | |
10341 | SV** regexen = AvARRAY((AV*)proto_perl->Iregex_padav); | |
0f95fc41 AB |
10342 | av_push(PL_regex_padav, |
10343 | sv_dup_inc(regexen[0],param)); | |
10344 | for(i = 1; i <= len; i++) { | |
10345 | if(SvREPADTMP(regexen[i])) { | |
10346 | av_push(PL_regex_padav, sv_dup_inc(regexen[i], param)); | |
8cf8f3d1 | 10347 | } else { |
0f95fc41 AB |
10348 | av_push(PL_regex_padav, |
10349 | SvREFCNT_inc( | |
8cf8f3d1 | 10350 | newSViv(PTR2IV(re_dup(INT2PTR(REGEXP *, |
cbfa9890 | 10351 | SvIVX(regexen[i])), param))) |
0f95fc41 AB |
10352 | )); |
10353 | } | |
d2f185dc AMS |
10354 | } |
10355 | } | |
10356 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 10357 | |
1d7c1841 | 10358 | /* shortcuts to various I/O objects */ |
d2d73c3e AB |
10359 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
10360 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
10361 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
10362 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
10363 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
10364 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
10365 | |
10366 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 10367 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
10368 | |
10369 | /* shortcuts to misc objects */ | |
d2d73c3e | 10370 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
10371 | |
10372 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
10373 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
10374 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
10375 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
10376 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
10377 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
10378 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
10379 | PL_lineary = av_dup(proto_perl->Ilineary, param); | |
10380 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
10381 | |
10382 | /* symbol tables */ | |
d2d73c3e AB |
10383 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
10384 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
d2d73c3e AB |
10385 | PL_debstash = hv_dup(proto_perl->Idebstash, param); |
10386 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
10387 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
10388 | ||
10389 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
ee1c5a4e | 10390 | PL_beginav_save = av_dup_inc(proto_perl->Ibeginav_save, param); |
ece599bd | 10391 | PL_checkav_save = av_dup_inc(proto_perl->Icheckav_save, param); |
d2d73c3e AB |
10392 | PL_endav = av_dup_inc(proto_perl->Iendav, param); |
10393 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
10394 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
10395 | |
10396 | PL_sub_generation = proto_perl->Isub_generation; | |
10397 | ||
10398 | /* funky return mechanisms */ | |
10399 | PL_forkprocess = proto_perl->Iforkprocess; | |
10400 | ||
10401 | /* subprocess state */ | |
d2d73c3e | 10402 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
10403 | |
10404 | /* internal state */ | |
10405 | PL_tainting = proto_perl->Itainting; | |
10406 | PL_maxo = proto_perl->Imaxo; | |
10407 | if (proto_perl->Iop_mask) | |
10408 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
10409 | else | |
10410 | PL_op_mask = Nullch; | |
10411 | ||
10412 | /* current interpreter roots */ | |
d2d73c3e | 10413 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
10414 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
10415 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 10416 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
10417 | PL_eval_start = proto_perl->Ieval_start; |
10418 | ||
10419 | /* runtime control stuff */ | |
10420 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
10421 | PL_copline = proto_perl->Icopline; | |
10422 | ||
10423 | PL_filemode = proto_perl->Ifilemode; | |
10424 | PL_lastfd = proto_perl->Ilastfd; | |
10425 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
10426 | PL_Argv = NULL; | |
10427 | PL_Cmd = Nullch; | |
10428 | PL_gensym = proto_perl->Igensym; | |
10429 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 10430 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
10431 | PL_laststatval = proto_perl->Ilaststatval; |
10432 | PL_laststype = proto_perl->Ilaststype; | |
10433 | PL_mess_sv = Nullsv; | |
10434 | ||
d2d73c3e | 10435 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
10436 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
10437 | ||
10438 | /* interpreter atexit processing */ | |
10439 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
10440 | if (PL_exitlistlen) { | |
10441 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
10442 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
10443 | } | |
10444 | else | |
10445 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 10446 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
19e8ce8e AB |
10447 | PL_custom_op_names = hv_dup_inc(proto_perl->Icustom_op_names,param); |
10448 | PL_custom_op_descs = hv_dup_inc(proto_perl->Icustom_op_descs,param); | |
1d7c1841 GS |
10449 | |
10450 | PL_profiledata = NULL; | |
a8fc9800 | 10451 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<', param); |
1d7c1841 | 10452 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
d2d73c3e | 10453 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 10454 | |
d2d73c3e | 10455 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
dd2155a4 DM |
10456 | |
10457 | PAD_CLONE_VARS(proto_perl, param); | |
1d7c1841 GS |
10458 | |
10459 | #ifdef HAVE_INTERP_INTERN | |
10460 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
10461 | #endif | |
10462 | ||
10463 | /* more statics moved here */ | |
10464 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 10465 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
10466 | |
10467 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
10468 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
10469 | ||
10470 | PL_uid = proto_perl->Iuid; | |
10471 | PL_euid = proto_perl->Ieuid; | |
10472 | PL_gid = proto_perl->Igid; | |
10473 | PL_egid = proto_perl->Iegid; | |
10474 | PL_nomemok = proto_perl->Inomemok; | |
10475 | PL_an = proto_perl->Ian; | |
1d7c1841 GS |
10476 | PL_op_seqmax = proto_perl->Iop_seqmax; |
10477 | PL_evalseq = proto_perl->Ievalseq; | |
10478 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
10479 | PL_origalen = proto_perl->Iorigalen; | |
10480 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
10481 | PL_osname = SAVEPV(proto_perl->Iosname); | |
0bb09c15 | 10482 | PL_sh_path = proto_perl->Ish_path; /* XXX never deallocated */ |
1d7c1841 GS |
10483 | PL_sighandlerp = proto_perl->Isighandlerp; |
10484 | ||
10485 | ||
10486 | PL_runops = proto_perl->Irunops; | |
10487 | ||
10488 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
10489 | ||
10490 | #ifdef CSH | |
10491 | PL_cshlen = proto_perl->Icshlen; | |
74f1b2b8 | 10492 | PL_cshname = proto_perl->Icshname; /* XXX never deallocated */ |
1d7c1841 GS |
10493 | #endif |
10494 | ||
10495 | PL_lex_state = proto_perl->Ilex_state; | |
10496 | PL_lex_defer = proto_perl->Ilex_defer; | |
10497 | PL_lex_expect = proto_perl->Ilex_expect; | |
10498 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
10499 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
10500 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
10501 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
10502 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
10503 | PL_lex_op = proto_perl->Ilex_op; |
10504 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
10505 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
10506 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
10507 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
10508 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
10509 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
10510 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
10511 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
10512 | ||
10513 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
10514 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
10515 | PL_nexttoke = proto_perl->Inexttoke; | |
10516 | ||
1d773130 TB |
10517 | /* XXX This is probably masking the deeper issue of why |
10518 | * SvANY(proto_perl->Ilinestr) can be NULL at this point. For test case: | |
10519 | * http://archive.develooper.com/perl5-porters%40perl.org/msg83298.html | |
10520 | * (A little debugging with a watchpoint on it may help.) | |
10521 | */ | |
389edf32 TB |
10522 | if (SvANY(proto_perl->Ilinestr)) { |
10523 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); | |
10524 | i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); | |
10525 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10526 | i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); | |
10527 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10528 | i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); | |
10529 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10530 | i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); | |
10531 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10532 | } | |
10533 | else { | |
10534 | PL_linestr = NEWSV(65,79); | |
10535 | sv_upgrade(PL_linestr,SVt_PVIV); | |
10536 | sv_setpvn(PL_linestr,"",0); | |
10537 | PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
10538 | } | |
1d7c1841 | 10539 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
1d7c1841 GS |
10540 | PL_pending_ident = proto_perl->Ipending_ident; |
10541 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
10542 | ||
10543 | PL_expect = proto_perl->Iexpect; | |
10544 | ||
10545 | PL_multi_start = proto_perl->Imulti_start; | |
10546 | PL_multi_end = proto_perl->Imulti_end; | |
10547 | PL_multi_open = proto_perl->Imulti_open; | |
10548 | PL_multi_close = proto_perl->Imulti_close; | |
10549 | ||
10550 | PL_error_count = proto_perl->Ierror_count; | |
10551 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 10552 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 | 10553 | |
1d773130 | 10554 | /* XXX See comment on SvANY(proto_perl->Ilinestr) above */ |
389edf32 TB |
10555 | if (SvANY(proto_perl->Ilinestr)) { |
10556 | i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); | |
10557 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10558 | i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); | |
10559 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10560 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
10561 | } | |
10562 | else { | |
10563 | PL_last_uni = SvPVX(PL_linestr); | |
10564 | PL_last_lop = SvPVX(PL_linestr); | |
10565 | PL_last_lop_op = 0; | |
10566 | } | |
1d7c1841 | 10567 | PL_in_my = proto_perl->Iin_my; |
d2d73c3e | 10568 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
10569 | #ifdef FCRYPT |
10570 | PL_cryptseen = proto_perl->Icryptseen; | |
10571 | #endif | |
10572 | ||
10573 | PL_hints = proto_perl->Ihints; | |
10574 | ||
10575 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
10576 | ||
10577 | #ifdef USE_LOCALE_COLLATE | |
10578 | PL_collation_ix = proto_perl->Icollation_ix; | |
10579 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
10580 | PL_collation_standard = proto_perl->Icollation_standard; | |
10581 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
10582 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
10583 | #endif /* USE_LOCALE_COLLATE */ | |
10584 | ||
10585 | #ifdef USE_LOCALE_NUMERIC | |
10586 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
10587 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
10588 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 10589 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
10590 | #endif /* !USE_LOCALE_NUMERIC */ |
10591 | ||
10592 | /* utf8 character classes */ | |
d2d73c3e AB |
10593 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
10594 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
10595 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
10596 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
10597 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
10598 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
10599 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
10600 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
10601 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
10602 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
10603 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
10604 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
10605 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
10606 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
10607 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
10608 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
10609 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
b4e400f9 | 10610 | PL_utf8_tofold = sv_dup_inc(proto_perl->Iutf8_tofold, param); |
82686b01 JH |
10611 | PL_utf8_idstart = sv_dup_inc(proto_perl->Iutf8_idstart, param); |
10612 | PL_utf8_idcont = sv_dup_inc(proto_perl->Iutf8_idcont, param); | |
1d7c1841 GS |
10613 | |
10614 | /* swatch cache */ | |
10615 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
10616 | PL_last_swash_klen = 0; | |
10617 | PL_last_swash_key[0]= '\0'; | |
10618 | PL_last_swash_tmps = (U8*)NULL; | |
10619 | PL_last_swash_slen = 0; | |
10620 | ||
10621 | /* perly.c globals */ | |
10622 | PL_yydebug = proto_perl->Iyydebug; | |
10623 | PL_yynerrs = proto_perl->Iyynerrs; | |
10624 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
10625 | PL_yychar = proto_perl->Iyychar; | |
10626 | PL_yyval = proto_perl->Iyyval; | |
10627 | PL_yylval = proto_perl->Iyylval; | |
10628 | ||
10629 | PL_glob_index = proto_perl->Iglob_index; | |
10630 | PL_srand_called = proto_perl->Isrand_called; | |
10631 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
10632 | PL_bitcount = Nullch; /* reinits on demand */ | |
10633 | ||
66fe0623 NIS |
10634 | if (proto_perl->Ipsig_pend) { |
10635 | Newz(0, PL_psig_pend, SIG_SIZE, int); | |
9dd79c3f | 10636 | } |
66fe0623 NIS |
10637 | else { |
10638 | PL_psig_pend = (int*)NULL; | |
10639 | } | |
10640 | ||
1d7c1841 | 10641 | if (proto_perl->Ipsig_ptr) { |
76d3c696 JH |
10642 | Newz(0, PL_psig_ptr, SIG_SIZE, SV*); |
10643 | Newz(0, PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 10644 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
10645 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
10646 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
10647 | } |
10648 | } | |
10649 | else { | |
10650 | PL_psig_ptr = (SV**)NULL; | |
10651 | PL_psig_name = (SV**)NULL; | |
10652 | } | |
10653 | ||
10654 | /* thrdvar.h stuff */ | |
10655 | ||
a0739874 | 10656 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
10657 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
10658 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
10659 | PL_tmps_max = proto_perl->Ttmps_max; | |
10660 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
10661 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
10662 | i = 0; | |
10663 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 10664 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
10665 | ++i; |
10666 | } | |
10667 | ||
10668 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
10669 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
10670 | Newz(54, PL_markstack, i, I32); | |
10671 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
10672 | - proto_perl->Tmarkstack); | |
10673 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
10674 | - proto_perl->Tmarkstack); | |
10675 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
10676 | PL_markstack_ptr - PL_markstack + 1, I32); | |
10677 | ||
10678 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
10679 | * NOTE: unlike the others! */ | |
10680 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
10681 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
10682 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
10683 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
10684 | ||
10685 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
10686 | * NOTE: unlike the others! */ | |
10687 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
10688 | PL_retstack_max = proto_perl->Tretstack_max; | |
10689 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
ce0a1ae0 | 10690 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, OP*); |
1d7c1841 GS |
10691 | |
10692 | /* NOTE: si_dup() looks at PL_markstack */ | |
d2d73c3e | 10693 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
10694 | |
10695 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
10696 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
10697 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
10698 | |
10699 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
10700 | PL_stack_base = AvARRAY(PL_curstack); | |
10701 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
10702 | - proto_perl->Tstack_base); | |
10703 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
10704 | ||
10705 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
10706 | * NOTE: unlike the others! */ | |
10707 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
10708 | PL_savestack_max = proto_perl->Tsavestack_max; | |
10709 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
d2d73c3e | 10710 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
10711 | } |
10712 | else { | |
10713 | init_stacks(); | |
985e7056 | 10714 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
10715 | } |
10716 | ||
10717 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
10718 | PL_top_env = &PL_start_env; | |
10719 | ||
10720 | PL_op = proto_perl->Top; | |
10721 | ||
10722 | PL_Sv = Nullsv; | |
10723 | PL_Xpv = (XPV*)NULL; | |
10724 | PL_na = proto_perl->Tna; | |
10725 | ||
10726 | PL_statbuf = proto_perl->Tstatbuf; | |
10727 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
10728 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
10729 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
10730 | #ifdef HAS_TIMES |
10731 | PL_timesbuf = proto_perl->Ttimesbuf; | |
10732 | #endif | |
10733 | ||
10734 | PL_tainted = proto_perl->Ttainted; | |
10735 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
10736 | PL_rs = sv_dup_inc(proto_perl->Trs, param); |
10737 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
10738 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
10739 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 10740 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
10741 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
10742 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
10743 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
10744 | |
10745 | PL_restartop = proto_perl->Trestartop; | |
10746 | PL_in_eval = proto_perl->Tin_eval; | |
10747 | PL_delaymagic = proto_perl->Tdelaymagic; | |
10748 | PL_dirty = proto_perl->Tdirty; | |
10749 | PL_localizing = proto_perl->Tlocalizing; | |
10750 | ||
14dd3ad8 | 10751 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 10752 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 10753 | #endif |
d2d73c3e | 10754 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
1d7c1841 GS |
10755 | PL_av_fetch_sv = Nullsv; |
10756 | PL_hv_fetch_sv = Nullsv; | |
10757 | Zero(&PL_hv_fetch_ent_mh, 1, HE); /* XXX */ | |
10758 | PL_modcount = proto_perl->Tmodcount; | |
10759 | PL_lastgotoprobe = Nullop; | |
10760 | PL_dumpindent = proto_perl->Tdumpindent; | |
10761 | ||
10762 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
10763 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
10764 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
10765 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
10766 | PL_sortcxix = proto_perl->Tsortcxix; |
10767 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
10768 | PL_efloatsize = 0; /* reinits on demand */ | |
10769 | ||
10770 | /* regex stuff */ | |
10771 | ||
10772 | PL_screamfirst = NULL; | |
10773 | PL_screamnext = NULL; | |
10774 | PL_maxscream = -1; /* reinits on demand */ | |
10775 | PL_lastscream = Nullsv; | |
10776 | ||
10777 | PL_watchaddr = NULL; | |
10778 | PL_watchok = Nullch; | |
10779 | ||
10780 | PL_regdummy = proto_perl->Tregdummy; | |
1d7c1841 GS |
10781 | PL_regprecomp = Nullch; |
10782 | PL_regnpar = 0; | |
10783 | PL_regsize = 0; | |
1d7c1841 GS |
10784 | PL_colorset = 0; /* reinits PL_colors[] */ |
10785 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
1d7c1841 GS |
10786 | PL_reginput = Nullch; |
10787 | PL_regbol = Nullch; | |
10788 | PL_regeol = Nullch; | |
10789 | PL_regstartp = (I32*)NULL; | |
10790 | PL_regendp = (I32*)NULL; | |
10791 | PL_reglastparen = (U32*)NULL; | |
10792 | PL_regtill = Nullch; | |
1d7c1841 GS |
10793 | PL_reg_start_tmp = (char**)NULL; |
10794 | PL_reg_start_tmpl = 0; | |
10795 | PL_regdata = (struct reg_data*)NULL; | |
10796 | PL_bostr = Nullch; | |
10797 | PL_reg_flags = 0; | |
10798 | PL_reg_eval_set = 0; | |
10799 | PL_regnarrate = 0; | |
10800 | PL_regprogram = (regnode*)NULL; | |
10801 | PL_regindent = 0; | |
10802 | PL_regcc = (CURCUR*)NULL; | |
10803 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
10804 | PL_reg_re = (regexp*)NULL; | |
10805 | PL_reg_ganch = Nullch; | |
10806 | PL_reg_sv = Nullsv; | |
53c4c00c | 10807 | PL_reg_match_utf8 = FALSE; |
1d7c1841 GS |
10808 | PL_reg_magic = (MAGIC*)NULL; |
10809 | PL_reg_oldpos = 0; | |
10810 | PL_reg_oldcurpm = (PMOP*)NULL; | |
10811 | PL_reg_curpm = (PMOP*)NULL; | |
10812 | PL_reg_oldsaved = Nullch; | |
10813 | PL_reg_oldsavedlen = 0; | |
10814 | PL_reg_maxiter = 0; | |
10815 | PL_reg_leftiter = 0; | |
10816 | PL_reg_poscache = Nullch; | |
10817 | PL_reg_poscache_size= 0; | |
10818 | ||
10819 | /* RE engine - function pointers */ | |
10820 | PL_regcompp = proto_perl->Tregcompp; | |
10821 | PL_regexecp = proto_perl->Tregexecp; | |
10822 | PL_regint_start = proto_perl->Tregint_start; | |
10823 | PL_regint_string = proto_perl->Tregint_string; | |
10824 | PL_regfree = proto_perl->Tregfree; | |
10825 | ||
10826 | PL_reginterp_cnt = 0; | |
10827 | PL_reg_starttry = 0; | |
10828 | ||
a2efc822 SC |
10829 | /* Pluggable optimizer */ |
10830 | PL_peepp = proto_perl->Tpeepp; | |
10831 | ||
a0739874 DM |
10832 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
10833 | ptr_table_free(PL_ptr_table); | |
10834 | PL_ptr_table = NULL; | |
10835 | } | |
8cf8f3d1 | 10836 | |
f284b03f AMS |
10837 | /* Call the ->CLONE method, if it exists, for each of the stashes |
10838 | identified by sv_dup() above. | |
10839 | */ | |
d2d73c3e AB |
10840 | while(av_len(param->stashes) != -1) { |
10841 | HV* stash = (HV*) av_shift(param->stashes); | |
f284b03f AMS |
10842 | GV* cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); |
10843 | if (cloner && GvCV(cloner)) { | |
10844 | dSP; | |
10845 | ENTER; | |
10846 | SAVETMPS; | |
10847 | PUSHMARK(SP); | |
dc507217 | 10848 | XPUSHs(sv_2mortal(newSVpv(HvNAME(stash), 0))); |
f284b03f AMS |
10849 | PUTBACK; |
10850 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
10851 | FREETMPS; | |
10852 | LEAVE; | |
10853 | } | |
4a09accc | 10854 | } |
a0739874 | 10855 | |
dc507217 | 10856 | SvREFCNT_dec(param->stashes); |
dc507217 | 10857 | |
1d7c1841 | 10858 | return my_perl; |
1d7c1841 GS |
10859 | } |
10860 | ||
1d7c1841 | 10861 | #endif /* USE_ITHREADS */ |
a0ae6670 | 10862 | |
9f4817db | 10863 | /* |
ccfc67b7 JH |
10864 | =head1 Unicode Support |
10865 | ||
9f4817db JH |
10866 | =for apidoc sv_recode_to_utf8 |
10867 | ||
5d170f3a JH |
10868 | The encoding is assumed to be an Encode object, on entry the PV |
10869 | of the sv is assumed to be octets in that encoding, and the sv | |
10870 | will be converted into Unicode (and UTF-8). | |
9f4817db | 10871 | |
5d170f3a JH |
10872 | If the sv already is UTF-8 (or if it is not POK), or if the encoding |
10873 | is not a reference, nothing is done to the sv. If the encoding is not | |
1768d7eb JH |
10874 | an C<Encode::XS> Encoding object, bad things will happen. |
10875 | (See F<lib/encoding.pm> and L<Encode>). | |
9f4817db | 10876 | |
5d170f3a | 10877 | The PV of the sv is returned. |
9f4817db | 10878 | |
5d170f3a JH |
10879 | =cut */ |
10880 | ||
10881 | char * | |
10882 | Perl_sv_recode_to_utf8(pTHX_ SV *sv, SV *encoding) | |
10883 | { | |
f9893866 | 10884 | if (SvPOK(sv) && !DO_UTF8(sv) && SvROK(encoding)) { |
d0063567 DK |
10885 | int vary = FALSE; |
10886 | SV *uni; | |
10887 | STRLEN len; | |
10888 | char *s; | |
10889 | dSP; | |
10890 | ENTER; | |
10891 | SAVETMPS; | |
10892 | PUSHMARK(sp); | |
10893 | EXTEND(SP, 3); | |
10894 | XPUSHs(encoding); | |
10895 | XPUSHs(sv); | |
f9893866 NIS |
10896 | /* |
10897 | NI-S 2002/07/09 | |
10898 | Passing sv_yes is wrong - it needs to be or'ed set of constants | |
10899 | for Encode::XS, while UTf-8 decode (currently) assumes a true value means | |
10900 | remove converted chars from source. | |
10901 | ||
10902 | Both will default the value - let them. | |
10903 | ||
d0063567 | 10904 | XPUSHs(&PL_sv_yes); |
f9893866 | 10905 | */ |
d0063567 DK |
10906 | PUTBACK; |
10907 | call_method("decode", G_SCALAR); | |
10908 | SPAGAIN; | |
10909 | uni = POPs; | |
10910 | PUTBACK; | |
10911 | s = SvPV(uni, len); | |
10912 | { | |
10913 | U8 *t = (U8 *)s, *e = (U8 *)s + len; | |
10914 | while (t < e) { | |
10915 | if ((vary = !UTF8_IS_INVARIANT(*t++))) | |
10916 | break; | |
10917 | } | |
10918 | } | |
10919 | if (s != SvPVX(sv)) { | |
10920 | SvGROW(sv, len + 1); | |
10921 | Move(s, SvPVX(sv), len, char); | |
10922 | SvCUR_set(sv, len); | |
10923 | SvPVX(sv)[len] = 0; | |
10924 | } | |
10925 | FREETMPS; | |
10926 | LEAVE; | |
10927 | if (vary) | |
10928 | SvUTF8_on(sv); | |
10929 | SvUTF8_on(sv); | |
f9893866 NIS |
10930 | } |
10931 | return SvPVX(sv); | |
9f4817db JH |
10932 | } |
10933 | ||
68795e93 | 10934 | |
f9893866 | 10935 |