Commit | Line | Data |
---|---|---|
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)) | |
28 | /* This is a pessamistic view. Scalar must be purely a read-write PV to copy- | |
29 | on-write. */ | |
e419cbc5 NC |
30 | #define CAN_COW_MASK (SVs_OBJECT|SVs_GMG|SVs_SMG|SVs_RMG|SVf_IOK|SVf_NOK| \ |
31 | SVf_POK|SVf_ROK|SVp_IOK|SVp_NOK|SVp_POK|SVf_FAKE| \ | |
32 | SVf_OOK|SVf_BREAK|SVf_READONLY|SVf_AMAGIC) | |
765f542d NC |
33 | #define CAN_COW_FLAGS (SVp_POK|SVf_POK) |
34 | #endif | |
645c22ef DM |
35 | |
36 | /* ============================================================================ | |
37 | ||
38 | =head1 Allocation and deallocation of SVs. | |
39 | ||
5e045b90 AMS |
40 | An SV (or AV, HV, etc.) is allocated in two parts: the head (struct sv, |
41 | av, hv...) contains type and reference count information, as well as a | |
42 | pointer to the body (struct xrv, xpv, xpviv...), which contains fields | |
43 | specific to each type. | |
44 | ||
45 | Normally, this allocation is done using arenas, which are approximately | |
46 | 1K chunks of memory parcelled up into N heads or bodies. The first slot | |
47 | in each arena is reserved, and is used to hold a link to the next arena. | |
48 | In the case of heads, the unused first slot also contains some flags and | |
49 | a note of the number of slots. Snaked through each arena chain is a | |
50 | linked list of free items; when this becomes empty, an extra arena is | |
51 | allocated and divided up into N items which are threaded into the free | |
52 | list. | |
645c22ef DM |
53 | |
54 | The following global variables are associated with arenas: | |
55 | ||
56 | PL_sv_arenaroot pointer to list of SV arenas | |
57 | PL_sv_root pointer to list of free SV structures | |
58 | ||
59 | PL_foo_arenaroot pointer to list of foo arenas, | |
60 | PL_foo_root pointer to list of free foo bodies | |
61 | ... for foo in xiv, xnv, xrv, xpv etc. | |
62 | ||
63 | Note that some of the larger and more rarely used body types (eg xpvio) | |
64 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
65 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
66 | with all items individually malloc()ed. In addition, a few SV heads are | |
67 | not allocated from an arena, but are instead directly created as static | |
68 | or auto variables, eg PL_sv_undef. | |
69 | ||
70 | The SV arena serves the secondary purpose of allowing still-live SVs | |
71 | to be located and destroyed during final cleanup. | |
72 | ||
73 | At the lowest level, the macros new_SV() and del_SV() grab and free | |
74 | an SV head. (If debugging with -DD, del_SV() calls the function S_del_sv() | |
75 | to return the SV to the free list with error checking.) new_SV() calls | |
76 | more_sv() / sv_add_arena() to add an extra arena if the free list is empty. | |
77 | SVs in the free list have their SvTYPE field set to all ones. | |
78 | ||
79 | Similarly, there are macros new_XIV()/del_XIV(), new_XNV()/del_XNV() etc | |
80 | that allocate and return individual body types. Normally these are mapped | |
ff276b08 RG |
81 | to the arena-manipulating functions new_xiv()/del_xiv() etc, but may be |
82 | instead mapped directly to malloc()/free() if PURIFY is defined. The | |
645c22ef DM |
83 | new/del functions remove from, or add to, the appropriate PL_foo_root |
84 | list, and call more_xiv() etc to add a new arena if the list is empty. | |
85 | ||
ff276b08 | 86 | At the time of very final cleanup, sv_free_arenas() is called from |
645c22ef DM |
87 | perl_destruct() to physically free all the arenas allocated since the |
88 | start of the interpreter. Note that this also clears PL_he_arenaroot, | |
89 | which is otherwise dealt with in hv.c. | |
90 | ||
91 | Manipulation of any of the PL_*root pointers is protected by enclosing | |
92 | LOCK_SV_MUTEX; ... UNLOCK_SV_MUTEX calls which should Do the Right Thing | |
93 | if threads are enabled. | |
94 | ||
95 | The function visit() scans the SV arenas list, and calls a specified | |
96 | function for each SV it finds which is still live - ie which has an SvTYPE | |
97 | other than all 1's, and a non-zero SvREFCNT. visit() is used by the | |
98 | following functions (specified as [function that calls visit()] / [function | |
99 | called by visit() for each SV]): | |
100 | ||
101 | sv_report_used() / do_report_used() | |
102 | dump all remaining SVs (debugging aid) | |
103 | ||
104 | sv_clean_objs() / do_clean_objs(),do_clean_named_objs() | |
105 | Attempt to free all objects pointed to by RVs, | |
106 | and, unless DISABLE_DESTRUCTOR_KLUDGE is defined, | |
107 | try to do the same for all objects indirectly | |
108 | referenced by typeglobs too. Called once from | |
109 | perl_destruct(), prior to calling sv_clean_all() | |
110 | below. | |
111 | ||
112 | sv_clean_all() / do_clean_all() | |
113 | SvREFCNT_dec(sv) each remaining SV, possibly | |
114 | triggering an sv_free(). It also sets the | |
115 | SVf_BREAK flag on the SV to indicate that the | |
116 | refcnt has been artificially lowered, and thus | |
117 | stopping sv_free() from giving spurious warnings | |
118 | about SVs which unexpectedly have a refcnt | |
119 | of zero. called repeatedly from perl_destruct() | |
120 | until there are no SVs left. | |
121 | ||
122 | =head2 Summary | |
123 | ||
124 | Private API to rest of sv.c | |
125 | ||
126 | new_SV(), del_SV(), | |
127 | ||
128 | new_XIV(), del_XIV(), | |
129 | new_XNV(), del_XNV(), | |
130 | etc | |
131 | ||
132 | Public API: | |
133 | ||
8cf8f3d1 | 134 | sv_report_used(), sv_clean_objs(), sv_clean_all(), sv_free_arenas() |
645c22ef DM |
135 | |
136 | ||
137 | =cut | |
138 | ||
139 | ============================================================================ */ | |
140 | ||
141 | ||
51371543 | 142 | |
4561caa4 CS |
143 | /* |
144 | * "A time to plant, and a time to uproot what was planted..." | |
145 | */ | |
146 | ||
053fc874 GS |
147 | #define plant_SV(p) \ |
148 | STMT_START { \ | |
149 | SvANY(p) = (void *)PL_sv_root; \ | |
150 | SvFLAGS(p) = SVTYPEMASK; \ | |
151 | PL_sv_root = (p); \ | |
152 | --PL_sv_count; \ | |
153 | } STMT_END | |
a0d0e21e | 154 | |
fba3b22e | 155 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
156 | #define uproot_SV(p) \ |
157 | STMT_START { \ | |
158 | (p) = PL_sv_root; \ | |
159 | PL_sv_root = (SV*)SvANY(p); \ | |
160 | ++PL_sv_count; \ | |
161 | } STMT_END | |
162 | ||
645c22ef DM |
163 | |
164 | /* new_SV(): return a new, empty SV head */ | |
165 | ||
053fc874 GS |
166 | #define new_SV(p) \ |
167 | STMT_START { \ | |
168 | LOCK_SV_MUTEX; \ | |
169 | if (PL_sv_root) \ | |
170 | uproot_SV(p); \ | |
171 | else \ | |
172 | (p) = more_sv(); \ | |
173 | UNLOCK_SV_MUTEX; \ | |
174 | SvANY(p) = 0; \ | |
175 | SvREFCNT(p) = 1; \ | |
176 | SvFLAGS(p) = 0; \ | |
177 | } STMT_END | |
463ee0b2 | 178 | |
645c22ef DM |
179 | |
180 | /* del_SV(): return an empty SV head to the free list */ | |
181 | ||
a0d0e21e | 182 | #ifdef DEBUGGING |
4561caa4 | 183 | |
053fc874 GS |
184 | #define del_SV(p) \ |
185 | STMT_START { \ | |
186 | LOCK_SV_MUTEX; \ | |
aea4f609 | 187 | if (DEBUG_D_TEST) \ |
053fc874 GS |
188 | del_sv(p); \ |
189 | else \ | |
190 | plant_SV(p); \ | |
191 | UNLOCK_SV_MUTEX; \ | |
192 | } STMT_END | |
a0d0e21e | 193 | |
76e3520e | 194 | STATIC void |
cea2e8a9 | 195 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 196 | { |
aea4f609 | 197 | if (DEBUG_D_TEST) { |
4633a7c4 | 198 | SV* sva; |
a0d0e21e LW |
199 | SV* sv; |
200 | SV* svend; | |
201 | int ok = 0; | |
3280af22 | 202 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
203 | sv = sva + 1; |
204 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
205 | if (p >= sv && p < svend) |
206 | ok = 1; | |
207 | } | |
208 | if (!ok) { | |
0453d815 | 209 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 210 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
1d7c1841 GS |
211 | "Attempt to free non-arena SV: 0x%"UVxf, |
212 | PTR2UV(p)); | |
a0d0e21e LW |
213 | return; |
214 | } | |
215 | } | |
4561caa4 | 216 | plant_SV(p); |
463ee0b2 | 217 | } |
a0d0e21e | 218 | |
4561caa4 CS |
219 | #else /* ! DEBUGGING */ |
220 | ||
221 | #define del_SV(p) plant_SV(p) | |
222 | ||
223 | #endif /* DEBUGGING */ | |
463ee0b2 | 224 | |
645c22ef DM |
225 | |
226 | /* | |
ccfc67b7 JH |
227 | =head1 SV Manipulation Functions |
228 | ||
645c22ef DM |
229 | =for apidoc sv_add_arena |
230 | ||
231 | Given a chunk of memory, link it to the head of the list of arenas, | |
232 | and split it into a list of free SVs. | |
233 | ||
234 | =cut | |
235 | */ | |
236 | ||
4633a7c4 | 237 | void |
864dbfa3 | 238 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 239 | { |
4633a7c4 | 240 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
241 | register SV* sv; |
242 | register SV* svend; | |
14dd3ad8 | 243 | Zero(ptr, size, char); |
4633a7c4 LW |
244 | |
245 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 246 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
247 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
248 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
249 | ||
3280af22 NIS |
250 | PL_sv_arenaroot = sva; |
251 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
252 | |
253 | svend = &sva[SvREFCNT(sva) - 1]; | |
254 | sv = sva + 1; | |
463ee0b2 | 255 | while (sv < svend) { |
a0d0e21e | 256 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 | 257 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
258 | sv++; |
259 | } | |
260 | SvANY(sv) = 0; | |
4633a7c4 LW |
261 | SvFLAGS(sv) = SVTYPEMASK; |
262 | } | |
263 | ||
645c22ef DM |
264 | /* make some more SVs by adding another arena */ |
265 | ||
fba3b22e | 266 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 267 | STATIC SV* |
cea2e8a9 | 268 | S_more_sv(pTHX) |
4633a7c4 | 269 | { |
4561caa4 CS |
270 | register SV* sv; |
271 | ||
3280af22 NIS |
272 | if (PL_nice_chunk) { |
273 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
274 | PL_nice_chunk = Nullch; | |
30ad99e7 | 275 | PL_nice_chunk_size = 0; |
c07a80fd | 276 | } |
1edc1566 | 277 | else { |
278 | char *chunk; /* must use New here to match call to */ | |
279 | New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ | |
280 | sv_add_arena(chunk, 1008, 0); | |
281 | } | |
4561caa4 CS |
282 | uproot_SV(sv); |
283 | return sv; | |
463ee0b2 LW |
284 | } |
285 | ||
ff276b08 | 286 | /* visit(): call the named function for each non-free SV in the arenas. */ |
645c22ef | 287 | |
5226ed68 | 288 | STATIC I32 |
cea2e8a9 | 289 | S_visit(pTHX_ SVFUNC_t f) |
8990e307 | 290 | { |
4633a7c4 | 291 | SV* sva; |
8990e307 LW |
292 | SV* sv; |
293 | register SV* svend; | |
5226ed68 | 294 | I32 visited = 0; |
8990e307 | 295 | |
3280af22 | 296 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 297 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 | 298 | for (sv = sva + 1; sv < svend; ++sv) { |
f25c30a3 | 299 | if (SvTYPE(sv) != SVTYPEMASK && SvREFCNT(sv)) { |
acfe0abc | 300 | (FCALL)(aTHX_ sv); |
5226ed68 JH |
301 | ++visited; |
302 | } | |
8990e307 LW |
303 | } |
304 | } | |
5226ed68 | 305 | return visited; |
8990e307 LW |
306 | } |
307 | ||
758a08c3 JH |
308 | #ifdef DEBUGGING |
309 | ||
645c22ef DM |
310 | /* called by sv_report_used() for each live SV */ |
311 | ||
312 | static void | |
acfe0abc | 313 | do_report_used(pTHX_ SV *sv) |
645c22ef DM |
314 | { |
315 | if (SvTYPE(sv) != SVTYPEMASK) { | |
316 | PerlIO_printf(Perl_debug_log, "****\n"); | |
317 | sv_dump(sv); | |
318 | } | |
319 | } | |
758a08c3 | 320 | #endif |
645c22ef DM |
321 | |
322 | /* | |
323 | =for apidoc sv_report_used | |
324 | ||
325 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
326 | ||
327 | =cut | |
328 | */ | |
329 | ||
8990e307 | 330 | void |
864dbfa3 | 331 | Perl_sv_report_used(pTHX) |
4561caa4 | 332 | { |
ff270d3a | 333 | #ifdef DEBUGGING |
0b94c7bb | 334 | visit(do_report_used); |
ff270d3a | 335 | #endif |
4561caa4 CS |
336 | } |
337 | ||
645c22ef DM |
338 | /* called by sv_clean_objs() for each live SV */ |
339 | ||
340 | static void | |
acfe0abc | 341 | do_clean_objs(pTHX_ SV *sv) |
645c22ef DM |
342 | { |
343 | SV* rv; | |
344 | ||
345 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
346 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv))); | |
347 | if (SvWEAKREF(sv)) { | |
348 | sv_del_backref(sv); | |
349 | SvWEAKREF_off(sv); | |
350 | SvRV(sv) = 0; | |
351 | } else { | |
352 | SvROK_off(sv); | |
353 | SvRV(sv) = 0; | |
354 | SvREFCNT_dec(rv); | |
355 | } | |
356 | } | |
357 | ||
358 | /* XXX Might want to check arrays, etc. */ | |
359 | } | |
360 | ||
361 | /* called by sv_clean_objs() for each live SV */ | |
362 | ||
363 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
364 | static void | |
acfe0abc | 365 | do_clean_named_objs(pTHX_ SV *sv) |
645c22ef DM |
366 | { |
367 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
368 | if ( SvOBJECT(GvSV(sv)) || | |
369 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || | |
370 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
371 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
372 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
373 | { | |
374 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
375 | SvREFCNT_dec(sv); | |
376 | } | |
377 | } | |
378 | } | |
379 | #endif | |
380 | ||
381 | /* | |
382 | =for apidoc sv_clean_objs | |
383 | ||
384 | Attempt to destroy all objects not yet freed | |
385 | ||
386 | =cut | |
387 | */ | |
388 | ||
4561caa4 | 389 | void |
864dbfa3 | 390 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 391 | { |
3280af22 | 392 | PL_in_clean_objs = TRUE; |
0b94c7bb | 393 | visit(do_clean_objs); |
4561caa4 | 394 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 395 | /* some barnacles may yet remain, clinging to typeglobs */ |
0b94c7bb | 396 | visit(do_clean_named_objs); |
4561caa4 | 397 | #endif |
3280af22 | 398 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
399 | } |
400 | ||
645c22ef DM |
401 | /* called by sv_clean_all() for each live SV */ |
402 | ||
403 | static void | |
acfe0abc | 404 | do_clean_all(pTHX_ SV *sv) |
645c22ef DM |
405 | { |
406 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
407 | SvFLAGS(sv) |= SVf_BREAK; | |
408 | SvREFCNT_dec(sv); | |
409 | } | |
410 | ||
411 | /* | |
412 | =for apidoc sv_clean_all | |
413 | ||
414 | Decrement the refcnt of each remaining SV, possibly triggering a | |
415 | cleanup. This function may have to be called multiple times to free | |
ff276b08 | 416 | SVs which are in complex self-referential hierarchies. |
645c22ef DM |
417 | |
418 | =cut | |
419 | */ | |
420 | ||
5226ed68 | 421 | I32 |
864dbfa3 | 422 | Perl_sv_clean_all(pTHX) |
8990e307 | 423 | { |
5226ed68 | 424 | I32 cleaned; |
3280af22 | 425 | PL_in_clean_all = TRUE; |
5226ed68 | 426 | cleaned = visit(do_clean_all); |
3280af22 | 427 | PL_in_clean_all = FALSE; |
5226ed68 | 428 | return cleaned; |
8990e307 | 429 | } |
463ee0b2 | 430 | |
645c22ef DM |
431 | /* |
432 | =for apidoc sv_free_arenas | |
433 | ||
434 | Deallocate the memory used by all arenas. Note that all the individual SV | |
435 | heads and bodies within the arenas must already have been freed. | |
436 | ||
437 | =cut | |
438 | */ | |
439 | ||
4633a7c4 | 440 | void |
864dbfa3 | 441 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
442 | { |
443 | SV* sva; | |
444 | SV* svanext; | |
612f20c3 | 445 | XPV *arena, *arenanext; |
4633a7c4 LW |
446 | |
447 | /* Free arenas here, but be careful about fake ones. (We assume | |
448 | contiguity of the fake ones with the corresponding real ones.) */ | |
449 | ||
3280af22 | 450 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
451 | svanext = (SV*) SvANY(sva); |
452 | while (svanext && SvFAKE(svanext)) | |
453 | svanext = (SV*) SvANY(svanext); | |
454 | ||
455 | if (!SvFAKE(sva)) | |
1edc1566 | 456 | Safefree((void *)sva); |
4633a7c4 | 457 | } |
5f05dabc | 458 | |
612f20c3 GS |
459 | for (arena = PL_xiv_arenaroot; arena; arena = arenanext) { |
460 | arenanext = (XPV*)arena->xpv_pv; | |
461 | Safefree(arena); | |
462 | } | |
463 | PL_xiv_arenaroot = 0; | |
464 | ||
465 | for (arena = PL_xnv_arenaroot; arena; arena = arenanext) { | |
466 | arenanext = (XPV*)arena->xpv_pv; | |
467 | Safefree(arena); | |
468 | } | |
469 | PL_xnv_arenaroot = 0; | |
470 | ||
471 | for (arena = PL_xrv_arenaroot; arena; arena = arenanext) { | |
472 | arenanext = (XPV*)arena->xpv_pv; | |
473 | Safefree(arena); | |
474 | } | |
475 | PL_xrv_arenaroot = 0; | |
476 | ||
477 | for (arena = PL_xpv_arenaroot; arena; arena = arenanext) { | |
478 | arenanext = (XPV*)arena->xpv_pv; | |
479 | Safefree(arena); | |
480 | } | |
481 | PL_xpv_arenaroot = 0; | |
482 | ||
483 | for (arena = (XPV*)PL_xpviv_arenaroot; arena; arena = arenanext) { | |
484 | arenanext = (XPV*)arena->xpv_pv; | |
485 | Safefree(arena); | |
486 | } | |
487 | PL_xpviv_arenaroot = 0; | |
488 | ||
489 | for (arena = (XPV*)PL_xpvnv_arenaroot; arena; arena = arenanext) { | |
490 | arenanext = (XPV*)arena->xpv_pv; | |
491 | Safefree(arena); | |
492 | } | |
493 | PL_xpvnv_arenaroot = 0; | |
494 | ||
495 | for (arena = (XPV*)PL_xpvcv_arenaroot; arena; arena = arenanext) { | |
496 | arenanext = (XPV*)arena->xpv_pv; | |
497 | Safefree(arena); | |
498 | } | |
499 | PL_xpvcv_arenaroot = 0; | |
500 | ||
501 | for (arena = (XPV*)PL_xpvav_arenaroot; arena; arena = arenanext) { | |
502 | arenanext = (XPV*)arena->xpv_pv; | |
503 | Safefree(arena); | |
504 | } | |
505 | PL_xpvav_arenaroot = 0; | |
506 | ||
507 | for (arena = (XPV*)PL_xpvhv_arenaroot; arena; arena = arenanext) { | |
508 | arenanext = (XPV*)arena->xpv_pv; | |
509 | Safefree(arena); | |
510 | } | |
511 | PL_xpvhv_arenaroot = 0; | |
512 | ||
513 | for (arena = (XPV*)PL_xpvmg_arenaroot; arena; arena = arenanext) { | |
514 | arenanext = (XPV*)arena->xpv_pv; | |
515 | Safefree(arena); | |
516 | } | |
517 | PL_xpvmg_arenaroot = 0; | |
518 | ||
519 | for (arena = (XPV*)PL_xpvlv_arenaroot; arena; arena = arenanext) { | |
520 | arenanext = (XPV*)arena->xpv_pv; | |
521 | Safefree(arena); | |
522 | } | |
523 | PL_xpvlv_arenaroot = 0; | |
524 | ||
525 | for (arena = (XPV*)PL_xpvbm_arenaroot; arena; arena = arenanext) { | |
526 | arenanext = (XPV*)arena->xpv_pv; | |
527 | Safefree(arena); | |
528 | } | |
529 | PL_xpvbm_arenaroot = 0; | |
530 | ||
531 | for (arena = (XPV*)PL_he_arenaroot; arena; arena = arenanext) { | |
532 | arenanext = (XPV*)arena->xpv_pv; | |
533 | Safefree(arena); | |
534 | } | |
535 | PL_he_arenaroot = 0; | |
536 | ||
3280af22 NIS |
537 | if (PL_nice_chunk) |
538 | Safefree(PL_nice_chunk); | |
539 | PL_nice_chunk = Nullch; | |
540 | PL_nice_chunk_size = 0; | |
541 | PL_sv_arenaroot = 0; | |
542 | PL_sv_root = 0; | |
4633a7c4 LW |
543 | } |
544 | ||
645c22ef DM |
545 | /* |
546 | =for apidoc report_uninit | |
547 | ||
548 | Print appropriate "Use of uninitialized variable" warning | |
549 | ||
550 | =cut | |
551 | */ | |
552 | ||
1d7c1841 GS |
553 | void |
554 | Perl_report_uninit(pTHX) | |
555 | { | |
556 | if (PL_op) | |
9014280d | 557 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, |
53e06cf0 | 558 | " in ", OP_DESC(PL_op)); |
1d7c1841 | 559 | else |
9014280d | 560 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, "", ""); |
1d7c1841 GS |
561 | } |
562 | ||
645c22ef DM |
563 | /* grab a new IV body from the free list, allocating more if necessary */ |
564 | ||
76e3520e | 565 | STATIC XPVIV* |
cea2e8a9 | 566 | S_new_xiv(pTHX) |
463ee0b2 | 567 | { |
ea7c11a3 | 568 | IV* xiv; |
cbe51380 GS |
569 | LOCK_SV_MUTEX; |
570 | if (!PL_xiv_root) | |
571 | more_xiv(); | |
572 | xiv = PL_xiv_root; | |
573 | /* | |
574 | * See comment in more_xiv() -- RAM. | |
575 | */ | |
576 | PL_xiv_root = *(IV**)xiv; | |
577 | UNLOCK_SV_MUTEX; | |
578 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
579 | } |
580 | ||
645c22ef DM |
581 | /* return an IV body to the free list */ |
582 | ||
76e3520e | 583 | STATIC void |
cea2e8a9 | 584 | S_del_xiv(pTHX_ XPVIV *p) |
463ee0b2 | 585 | { |
23e6a22f | 586 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 587 | LOCK_SV_MUTEX; |
3280af22 NIS |
588 | *(IV**)xiv = PL_xiv_root; |
589 | PL_xiv_root = xiv; | |
cbe51380 | 590 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
591 | } |
592 | ||
645c22ef DM |
593 | /* allocate another arena's worth of IV bodies */ |
594 | ||
cbe51380 | 595 | STATIC void |
cea2e8a9 | 596 | S_more_xiv(pTHX) |
463ee0b2 | 597 | { |
ea7c11a3 SM |
598 | register IV* xiv; |
599 | register IV* xivend; | |
8c52afec IZ |
600 | XPV* ptr; |
601 | New(705, ptr, 1008/sizeof(XPV), XPV); | |
645c22ef | 602 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
3280af22 | 603 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ |
a0d0e21e | 604 | |
ea7c11a3 SM |
605 | xiv = (IV*) ptr; |
606 | xivend = &xiv[1008 / sizeof(IV) - 1]; | |
645c22ef | 607 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ |
3280af22 | 608 | PL_xiv_root = xiv; |
463ee0b2 | 609 | while (xiv < xivend) { |
ea7c11a3 | 610 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
611 | xiv++; |
612 | } | |
ea7c11a3 | 613 | *(IV**)xiv = 0; |
463ee0b2 LW |
614 | } |
615 | ||
645c22ef DM |
616 | /* grab a new NV body from the free list, allocating more if necessary */ |
617 | ||
76e3520e | 618 | STATIC XPVNV* |
cea2e8a9 | 619 | S_new_xnv(pTHX) |
463ee0b2 | 620 | { |
65202027 | 621 | NV* xnv; |
cbe51380 GS |
622 | LOCK_SV_MUTEX; |
623 | if (!PL_xnv_root) | |
624 | more_xnv(); | |
625 | xnv = PL_xnv_root; | |
65202027 | 626 | PL_xnv_root = *(NV**)xnv; |
cbe51380 GS |
627 | UNLOCK_SV_MUTEX; |
628 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
629 | } |
630 | ||
645c22ef DM |
631 | /* return an NV body to the free list */ |
632 | ||
76e3520e | 633 | STATIC void |
cea2e8a9 | 634 | S_del_xnv(pTHX_ XPVNV *p) |
463ee0b2 | 635 | { |
65202027 | 636 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 637 | LOCK_SV_MUTEX; |
65202027 | 638 | *(NV**)xnv = PL_xnv_root; |
3280af22 | 639 | PL_xnv_root = xnv; |
cbe51380 | 640 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
641 | } |
642 | ||
645c22ef DM |
643 | /* allocate another arena's worth of NV bodies */ |
644 | ||
cbe51380 | 645 | STATIC void |
cea2e8a9 | 646 | S_more_xnv(pTHX) |
463ee0b2 | 647 | { |
65202027 DS |
648 | register NV* xnv; |
649 | register NV* xnvend; | |
612f20c3 GS |
650 | XPV *ptr; |
651 | New(711, ptr, 1008/sizeof(XPV), XPV); | |
652 | ptr->xpv_pv = (char*)PL_xnv_arenaroot; | |
653 | PL_xnv_arenaroot = ptr; | |
654 | ||
655 | xnv = (NV*) ptr; | |
65202027 DS |
656 | xnvend = &xnv[1008 / sizeof(NV) - 1]; |
657 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ | |
3280af22 | 658 | PL_xnv_root = xnv; |
463ee0b2 | 659 | while (xnv < xnvend) { |
65202027 | 660 | *(NV**)xnv = (NV*)(xnv + 1); |
463ee0b2 LW |
661 | xnv++; |
662 | } | |
65202027 | 663 | *(NV**)xnv = 0; |
463ee0b2 LW |
664 | } |
665 | ||
645c22ef DM |
666 | /* grab a new struct xrv from the free list, allocating more if necessary */ |
667 | ||
76e3520e | 668 | STATIC XRV* |
cea2e8a9 | 669 | S_new_xrv(pTHX) |
ed6116ce LW |
670 | { |
671 | XRV* xrv; | |
cbe51380 GS |
672 | LOCK_SV_MUTEX; |
673 | if (!PL_xrv_root) | |
674 | more_xrv(); | |
675 | xrv = PL_xrv_root; | |
676 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
677 | UNLOCK_SV_MUTEX; | |
678 | return xrv; | |
ed6116ce LW |
679 | } |
680 | ||
645c22ef DM |
681 | /* return a struct xrv to the free list */ |
682 | ||
76e3520e | 683 | STATIC void |
cea2e8a9 | 684 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 685 | { |
cbe51380 | 686 | LOCK_SV_MUTEX; |
3280af22 NIS |
687 | p->xrv_rv = (SV*)PL_xrv_root; |
688 | PL_xrv_root = p; | |
cbe51380 | 689 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
690 | } |
691 | ||
645c22ef DM |
692 | /* allocate another arena's worth of struct xrv */ |
693 | ||
cbe51380 | 694 | STATIC void |
cea2e8a9 | 695 | S_more_xrv(pTHX) |
ed6116ce | 696 | { |
ed6116ce LW |
697 | register XRV* xrv; |
698 | register XRV* xrvend; | |
612f20c3 GS |
699 | XPV *ptr; |
700 | New(712, ptr, 1008/sizeof(XPV), XPV); | |
701 | ptr->xpv_pv = (char*)PL_xrv_arenaroot; | |
702 | PL_xrv_arenaroot = ptr; | |
703 | ||
704 | xrv = (XRV*) ptr; | |
ed6116ce | 705 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
612f20c3 GS |
706 | xrv += (sizeof(XPV) - 1) / sizeof(XRV) + 1; |
707 | PL_xrv_root = xrv; | |
ed6116ce LW |
708 | while (xrv < xrvend) { |
709 | xrv->xrv_rv = (SV*)(xrv + 1); | |
710 | xrv++; | |
711 | } | |
712 | xrv->xrv_rv = 0; | |
ed6116ce LW |
713 | } |
714 | ||
645c22ef DM |
715 | /* grab a new struct xpv from the free list, allocating more if necessary */ |
716 | ||
76e3520e | 717 | STATIC XPV* |
cea2e8a9 | 718 | S_new_xpv(pTHX) |
463ee0b2 LW |
719 | { |
720 | XPV* xpv; | |
cbe51380 GS |
721 | LOCK_SV_MUTEX; |
722 | if (!PL_xpv_root) | |
723 | more_xpv(); | |
724 | xpv = PL_xpv_root; | |
725 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
726 | UNLOCK_SV_MUTEX; | |
727 | return xpv; | |
463ee0b2 LW |
728 | } |
729 | ||
645c22ef DM |
730 | /* return a struct xpv to the free list */ |
731 | ||
76e3520e | 732 | STATIC void |
cea2e8a9 | 733 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 734 | { |
cbe51380 | 735 | LOCK_SV_MUTEX; |
3280af22 NIS |
736 | p->xpv_pv = (char*)PL_xpv_root; |
737 | PL_xpv_root = p; | |
cbe51380 | 738 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
739 | } |
740 | ||
645c22ef DM |
741 | /* allocate another arena's worth of struct xpv */ |
742 | ||
cbe51380 | 743 | STATIC void |
cea2e8a9 | 744 | S_more_xpv(pTHX) |
463ee0b2 | 745 | { |
463ee0b2 LW |
746 | register XPV* xpv; |
747 | register XPV* xpvend; | |
612f20c3 GS |
748 | New(713, xpv, 1008/sizeof(XPV), XPV); |
749 | xpv->xpv_pv = (char*)PL_xpv_arenaroot; | |
750 | PL_xpv_arenaroot = xpv; | |
751 | ||
463ee0b2 | 752 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
612f20c3 | 753 | PL_xpv_root = ++xpv; |
463ee0b2 LW |
754 | while (xpv < xpvend) { |
755 | xpv->xpv_pv = (char*)(xpv + 1); | |
756 | xpv++; | |
757 | } | |
758 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
759 | } |
760 | ||
645c22ef DM |
761 | /* grab a new struct xpviv from the free list, allocating more if necessary */ |
762 | ||
932e9ff9 VB |
763 | STATIC XPVIV* |
764 | S_new_xpviv(pTHX) | |
765 | { | |
766 | XPVIV* xpviv; | |
767 | LOCK_SV_MUTEX; | |
768 | if (!PL_xpviv_root) | |
769 | more_xpviv(); | |
770 | xpviv = PL_xpviv_root; | |
771 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
772 | UNLOCK_SV_MUTEX; | |
773 | return xpviv; | |
774 | } | |
775 | ||
645c22ef DM |
776 | /* return a struct xpviv to the free list */ |
777 | ||
932e9ff9 VB |
778 | STATIC void |
779 | S_del_xpviv(pTHX_ XPVIV *p) | |
780 | { | |
781 | LOCK_SV_MUTEX; | |
782 | p->xpv_pv = (char*)PL_xpviv_root; | |
783 | PL_xpviv_root = p; | |
784 | UNLOCK_SV_MUTEX; | |
785 | } | |
786 | ||
645c22ef DM |
787 | /* allocate another arena's worth of struct xpviv */ |
788 | ||
932e9ff9 VB |
789 | STATIC void |
790 | S_more_xpviv(pTHX) | |
791 | { | |
792 | register XPVIV* xpviv; | |
793 | register XPVIV* xpvivend; | |
612f20c3 GS |
794 | New(714, xpviv, 1008/sizeof(XPVIV), XPVIV); |
795 | xpviv->xpv_pv = (char*)PL_xpviv_arenaroot; | |
796 | PL_xpviv_arenaroot = xpviv; | |
797 | ||
932e9ff9 | 798 | xpvivend = &xpviv[1008 / sizeof(XPVIV) - 1]; |
612f20c3 | 799 | PL_xpviv_root = ++xpviv; |
932e9ff9 VB |
800 | while (xpviv < xpvivend) { |
801 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
802 | xpviv++; | |
803 | } | |
804 | xpviv->xpv_pv = 0; | |
805 | } | |
806 | ||
645c22ef DM |
807 | /* grab a new struct xpvnv from the free list, allocating more if necessary */ |
808 | ||
932e9ff9 VB |
809 | STATIC XPVNV* |
810 | S_new_xpvnv(pTHX) | |
811 | { | |
812 | XPVNV* xpvnv; | |
813 | LOCK_SV_MUTEX; | |
814 | if (!PL_xpvnv_root) | |
815 | more_xpvnv(); | |
816 | xpvnv = PL_xpvnv_root; | |
817 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
818 | UNLOCK_SV_MUTEX; | |
819 | return xpvnv; | |
820 | } | |
821 | ||
645c22ef DM |
822 | /* return a struct xpvnv to the free list */ |
823 | ||
932e9ff9 VB |
824 | STATIC void |
825 | S_del_xpvnv(pTHX_ XPVNV *p) | |
826 | { | |
827 | LOCK_SV_MUTEX; | |
828 | p->xpv_pv = (char*)PL_xpvnv_root; | |
829 | PL_xpvnv_root = p; | |
830 | UNLOCK_SV_MUTEX; | |
831 | } | |
832 | ||
645c22ef DM |
833 | /* allocate another arena's worth of struct xpvnv */ |
834 | ||
932e9ff9 VB |
835 | STATIC void |
836 | S_more_xpvnv(pTHX) | |
837 | { | |
838 | register XPVNV* xpvnv; | |
839 | register XPVNV* xpvnvend; | |
612f20c3 GS |
840 | New(715, xpvnv, 1008/sizeof(XPVNV), XPVNV); |
841 | xpvnv->xpv_pv = (char*)PL_xpvnv_arenaroot; | |
842 | PL_xpvnv_arenaroot = xpvnv; | |
843 | ||
932e9ff9 | 844 | xpvnvend = &xpvnv[1008 / sizeof(XPVNV) - 1]; |
612f20c3 | 845 | PL_xpvnv_root = ++xpvnv; |
932e9ff9 VB |
846 | while (xpvnv < xpvnvend) { |
847 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
848 | xpvnv++; | |
849 | } | |
850 | xpvnv->xpv_pv = 0; | |
851 | } | |
852 | ||
645c22ef DM |
853 | /* grab a new struct xpvcv from the free list, allocating more if necessary */ |
854 | ||
932e9ff9 VB |
855 | STATIC XPVCV* |
856 | S_new_xpvcv(pTHX) | |
857 | { | |
858 | XPVCV* xpvcv; | |
859 | LOCK_SV_MUTEX; | |
860 | if (!PL_xpvcv_root) | |
861 | more_xpvcv(); | |
862 | xpvcv = PL_xpvcv_root; | |
863 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
864 | UNLOCK_SV_MUTEX; | |
865 | return xpvcv; | |
866 | } | |
867 | ||
645c22ef DM |
868 | /* return a struct xpvcv to the free list */ |
869 | ||
932e9ff9 VB |
870 | STATIC void |
871 | S_del_xpvcv(pTHX_ XPVCV *p) | |
872 | { | |
873 | LOCK_SV_MUTEX; | |
874 | p->xpv_pv = (char*)PL_xpvcv_root; | |
875 | PL_xpvcv_root = p; | |
876 | UNLOCK_SV_MUTEX; | |
877 | } | |
878 | ||
645c22ef DM |
879 | /* allocate another arena's worth of struct xpvcv */ |
880 | ||
932e9ff9 VB |
881 | STATIC void |
882 | S_more_xpvcv(pTHX) | |
883 | { | |
884 | register XPVCV* xpvcv; | |
885 | register XPVCV* xpvcvend; | |
612f20c3 GS |
886 | New(716, xpvcv, 1008/sizeof(XPVCV), XPVCV); |
887 | xpvcv->xpv_pv = (char*)PL_xpvcv_arenaroot; | |
888 | PL_xpvcv_arenaroot = xpvcv; | |
889 | ||
932e9ff9 | 890 | xpvcvend = &xpvcv[1008 / sizeof(XPVCV) - 1]; |
612f20c3 | 891 | PL_xpvcv_root = ++xpvcv; |
932e9ff9 VB |
892 | while (xpvcv < xpvcvend) { |
893 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
894 | xpvcv++; | |
895 | } | |
896 | xpvcv->xpv_pv = 0; | |
897 | } | |
898 | ||
645c22ef DM |
899 | /* grab a new struct xpvav from the free list, allocating more if necessary */ |
900 | ||
932e9ff9 VB |
901 | STATIC XPVAV* |
902 | S_new_xpvav(pTHX) | |
903 | { | |
904 | XPVAV* xpvav; | |
905 | LOCK_SV_MUTEX; | |
906 | if (!PL_xpvav_root) | |
907 | more_xpvav(); | |
908 | xpvav = PL_xpvav_root; | |
909 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
910 | UNLOCK_SV_MUTEX; | |
911 | return xpvav; | |
912 | } | |
913 | ||
645c22ef DM |
914 | /* return a struct xpvav to the free list */ |
915 | ||
932e9ff9 VB |
916 | STATIC void |
917 | S_del_xpvav(pTHX_ XPVAV *p) | |
918 | { | |
919 | LOCK_SV_MUTEX; | |
920 | p->xav_array = (char*)PL_xpvav_root; | |
921 | PL_xpvav_root = p; | |
922 | UNLOCK_SV_MUTEX; | |
923 | } | |
924 | ||
645c22ef DM |
925 | /* allocate another arena's worth of struct xpvav */ |
926 | ||
932e9ff9 VB |
927 | STATIC void |
928 | S_more_xpvav(pTHX) | |
929 | { | |
930 | register XPVAV* xpvav; | |
931 | register XPVAV* xpvavend; | |
612f20c3 GS |
932 | New(717, xpvav, 1008/sizeof(XPVAV), XPVAV); |
933 | xpvav->xav_array = (char*)PL_xpvav_arenaroot; | |
934 | PL_xpvav_arenaroot = xpvav; | |
935 | ||
932e9ff9 | 936 | xpvavend = &xpvav[1008 / sizeof(XPVAV) - 1]; |
612f20c3 | 937 | PL_xpvav_root = ++xpvav; |
932e9ff9 VB |
938 | while (xpvav < xpvavend) { |
939 | xpvav->xav_array = (char*)(xpvav + 1); | |
940 | xpvav++; | |
941 | } | |
942 | xpvav->xav_array = 0; | |
943 | } | |
944 | ||
645c22ef DM |
945 | /* grab a new struct xpvhv from the free list, allocating more if necessary */ |
946 | ||
932e9ff9 VB |
947 | STATIC XPVHV* |
948 | S_new_xpvhv(pTHX) | |
949 | { | |
950 | XPVHV* xpvhv; | |
951 | LOCK_SV_MUTEX; | |
952 | if (!PL_xpvhv_root) | |
953 | more_xpvhv(); | |
954 | xpvhv = PL_xpvhv_root; | |
955 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
956 | UNLOCK_SV_MUTEX; | |
957 | return xpvhv; | |
958 | } | |
959 | ||
645c22ef DM |
960 | /* return a struct xpvhv to the free list */ |
961 | ||
932e9ff9 VB |
962 | STATIC void |
963 | S_del_xpvhv(pTHX_ XPVHV *p) | |
964 | { | |
965 | LOCK_SV_MUTEX; | |
966 | p->xhv_array = (char*)PL_xpvhv_root; | |
967 | PL_xpvhv_root = p; | |
968 | UNLOCK_SV_MUTEX; | |
969 | } | |
970 | ||
645c22ef DM |
971 | /* allocate another arena's worth of struct xpvhv */ |
972 | ||
932e9ff9 VB |
973 | STATIC void |
974 | S_more_xpvhv(pTHX) | |
975 | { | |
976 | register XPVHV* xpvhv; | |
977 | register XPVHV* xpvhvend; | |
612f20c3 GS |
978 | New(718, xpvhv, 1008/sizeof(XPVHV), XPVHV); |
979 | xpvhv->xhv_array = (char*)PL_xpvhv_arenaroot; | |
980 | PL_xpvhv_arenaroot = xpvhv; | |
981 | ||
932e9ff9 | 982 | xpvhvend = &xpvhv[1008 / sizeof(XPVHV) - 1]; |
612f20c3 | 983 | PL_xpvhv_root = ++xpvhv; |
932e9ff9 VB |
984 | while (xpvhv < xpvhvend) { |
985 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
986 | xpvhv++; | |
987 | } | |
988 | xpvhv->xhv_array = 0; | |
989 | } | |
990 | ||
645c22ef DM |
991 | /* grab a new struct xpvmg from the free list, allocating more if necessary */ |
992 | ||
932e9ff9 VB |
993 | STATIC XPVMG* |
994 | S_new_xpvmg(pTHX) | |
995 | { | |
996 | XPVMG* xpvmg; | |
997 | LOCK_SV_MUTEX; | |
998 | if (!PL_xpvmg_root) | |
999 | more_xpvmg(); | |
1000 | xpvmg = PL_xpvmg_root; | |
1001 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
1002 | UNLOCK_SV_MUTEX; | |
1003 | return xpvmg; | |
1004 | } | |
1005 | ||
645c22ef DM |
1006 | /* return a struct xpvmg to the free list */ |
1007 | ||
932e9ff9 VB |
1008 | STATIC void |
1009 | S_del_xpvmg(pTHX_ XPVMG *p) | |
1010 | { | |
1011 | LOCK_SV_MUTEX; | |
1012 | p->xpv_pv = (char*)PL_xpvmg_root; | |
1013 | PL_xpvmg_root = p; | |
1014 | UNLOCK_SV_MUTEX; | |
1015 | } | |
1016 | ||
645c22ef DM |
1017 | /* allocate another arena's worth of struct xpvmg */ |
1018 | ||
932e9ff9 VB |
1019 | STATIC void |
1020 | S_more_xpvmg(pTHX) | |
1021 | { | |
1022 | register XPVMG* xpvmg; | |
1023 | register XPVMG* xpvmgend; | |
612f20c3 GS |
1024 | New(719, xpvmg, 1008/sizeof(XPVMG), XPVMG); |
1025 | xpvmg->xpv_pv = (char*)PL_xpvmg_arenaroot; | |
1026 | PL_xpvmg_arenaroot = xpvmg; | |
1027 | ||
932e9ff9 | 1028 | xpvmgend = &xpvmg[1008 / sizeof(XPVMG) - 1]; |
612f20c3 | 1029 | PL_xpvmg_root = ++xpvmg; |
932e9ff9 VB |
1030 | while (xpvmg < xpvmgend) { |
1031 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
1032 | xpvmg++; | |
1033 | } | |
1034 | xpvmg->xpv_pv = 0; | |
1035 | } | |
1036 | ||
645c22ef DM |
1037 | /* grab a new struct xpvlv from the free list, allocating more if necessary */ |
1038 | ||
932e9ff9 VB |
1039 | STATIC XPVLV* |
1040 | S_new_xpvlv(pTHX) | |
1041 | { | |
1042 | XPVLV* xpvlv; | |
1043 | LOCK_SV_MUTEX; | |
1044 | if (!PL_xpvlv_root) | |
1045 | more_xpvlv(); | |
1046 | xpvlv = PL_xpvlv_root; | |
1047 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
1048 | UNLOCK_SV_MUTEX; | |
1049 | return xpvlv; | |
1050 | } | |
1051 | ||
645c22ef DM |
1052 | /* return a struct xpvlv to the free list */ |
1053 | ||
932e9ff9 VB |
1054 | STATIC void |
1055 | S_del_xpvlv(pTHX_ XPVLV *p) | |
1056 | { | |
1057 | LOCK_SV_MUTEX; | |
1058 | p->xpv_pv = (char*)PL_xpvlv_root; | |
1059 | PL_xpvlv_root = p; | |
1060 | UNLOCK_SV_MUTEX; | |
1061 | } | |
1062 | ||
645c22ef DM |
1063 | /* allocate another arena's worth of struct xpvlv */ |
1064 | ||
932e9ff9 VB |
1065 | STATIC void |
1066 | S_more_xpvlv(pTHX) | |
1067 | { | |
1068 | register XPVLV* xpvlv; | |
1069 | register XPVLV* xpvlvend; | |
612f20c3 GS |
1070 | New(720, xpvlv, 1008/sizeof(XPVLV), XPVLV); |
1071 | xpvlv->xpv_pv = (char*)PL_xpvlv_arenaroot; | |
1072 | PL_xpvlv_arenaroot = xpvlv; | |
1073 | ||
932e9ff9 | 1074 | xpvlvend = &xpvlv[1008 / sizeof(XPVLV) - 1]; |
612f20c3 | 1075 | PL_xpvlv_root = ++xpvlv; |
932e9ff9 VB |
1076 | while (xpvlv < xpvlvend) { |
1077 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
1078 | xpvlv++; | |
1079 | } | |
1080 | xpvlv->xpv_pv = 0; | |
1081 | } | |
1082 | ||
645c22ef DM |
1083 | /* grab a new struct xpvbm from the free list, allocating more if necessary */ |
1084 | ||
932e9ff9 VB |
1085 | STATIC XPVBM* |
1086 | S_new_xpvbm(pTHX) | |
1087 | { | |
1088 | XPVBM* xpvbm; | |
1089 | LOCK_SV_MUTEX; | |
1090 | if (!PL_xpvbm_root) | |
1091 | more_xpvbm(); | |
1092 | xpvbm = PL_xpvbm_root; | |
1093 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
1094 | UNLOCK_SV_MUTEX; | |
1095 | return xpvbm; | |
1096 | } | |
1097 | ||
645c22ef DM |
1098 | /* return a struct xpvbm to the free list */ |
1099 | ||
932e9ff9 VB |
1100 | STATIC void |
1101 | S_del_xpvbm(pTHX_ XPVBM *p) | |
1102 | { | |
1103 | LOCK_SV_MUTEX; | |
1104 | p->xpv_pv = (char*)PL_xpvbm_root; | |
1105 | PL_xpvbm_root = p; | |
1106 | UNLOCK_SV_MUTEX; | |
1107 | } | |
1108 | ||
645c22ef DM |
1109 | /* allocate another arena's worth of struct xpvbm */ |
1110 | ||
932e9ff9 VB |
1111 | STATIC void |
1112 | S_more_xpvbm(pTHX) | |
1113 | { | |
1114 | register XPVBM* xpvbm; | |
1115 | register XPVBM* xpvbmend; | |
612f20c3 GS |
1116 | New(721, xpvbm, 1008/sizeof(XPVBM), XPVBM); |
1117 | xpvbm->xpv_pv = (char*)PL_xpvbm_arenaroot; | |
1118 | PL_xpvbm_arenaroot = xpvbm; | |
1119 | ||
932e9ff9 | 1120 | xpvbmend = &xpvbm[1008 / sizeof(XPVBM) - 1]; |
612f20c3 | 1121 | PL_xpvbm_root = ++xpvbm; |
932e9ff9 VB |
1122 | while (xpvbm < xpvbmend) { |
1123 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
1124 | xpvbm++; | |
1125 | } | |
1126 | xpvbm->xpv_pv = 0; | |
1127 | } | |
1128 | ||
d33b2eba GS |
1129 | #ifdef LEAKTEST |
1130 | # define my_safemalloc(s) (void*)safexmalloc(717,s) | |
1131 | # define my_safefree(p) safexfree((char*)p) | |
1132 | #else | |
1133 | # define my_safemalloc(s) (void*)safemalloc(s) | |
1134 | # define my_safefree(p) safefree((char*)p) | |
1135 | #endif | |
463ee0b2 | 1136 | |
d33b2eba | 1137 | #ifdef PURIFY |
463ee0b2 | 1138 | |
d33b2eba GS |
1139 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
1140 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 1141 | |
d33b2eba GS |
1142 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1143 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1144 | |
d33b2eba GS |
1145 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
1146 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 1147 | |
d33b2eba GS |
1148 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1149 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1150 | |
d33b2eba GS |
1151 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1152 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1153 | |
d33b2eba GS |
1154 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1155 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1156 | |
d33b2eba GS |
1157 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1158 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1159 | |
d33b2eba GS |
1160 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1161 | #define del_XPVAV(p) my_safefree(p) | |
1162 | ||
1163 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1164 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1165 | |
d33b2eba GS |
1166 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1167 | #define del_XPVMG(p) my_safefree(p) | |
1168 | ||
1169 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) | |
1170 | #define del_XPVLV(p) my_safefree(p) | |
1171 | ||
1172 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1173 | #define del_XPVBM(p) my_safefree(p) | |
1174 | ||
1175 | #else /* !PURIFY */ | |
1176 | ||
1177 | #define new_XIV() (void*)new_xiv() | |
1178 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
1179 | ||
1180 | #define new_XNV() (void*)new_xnv() | |
1181 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 1182 | |
d33b2eba GS |
1183 | #define new_XRV() (void*)new_xrv() |
1184 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 1185 | |
d33b2eba GS |
1186 | #define new_XPV() (void*)new_xpv() |
1187 | #define del_XPV(p) del_xpv((XPV *)p) | |
1188 | ||
1189 | #define new_XPVIV() (void*)new_xpviv() | |
1190 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
1191 | ||
1192 | #define new_XPVNV() (void*)new_xpvnv() | |
1193 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
1194 | ||
1195 | #define new_XPVCV() (void*)new_xpvcv() | |
1196 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
1197 | ||
1198 | #define new_XPVAV() (void*)new_xpvav() | |
1199 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
1200 | ||
1201 | #define new_XPVHV() (void*)new_xpvhv() | |
1202 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
1c846c1f | 1203 | |
d33b2eba GS |
1204 | #define new_XPVMG() (void*)new_xpvmg() |
1205 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
1206 | ||
1207 | #define new_XPVLV() (void*)new_xpvlv() | |
1208 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
1209 | ||
1210 | #define new_XPVBM() (void*)new_xpvbm() | |
1211 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
1212 | ||
1213 | #endif /* PURIFY */ | |
9b94d1dd | 1214 | |
d33b2eba GS |
1215 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1216 | #define del_XPVGV(p) my_safefree(p) | |
1c846c1f | 1217 | |
d33b2eba GS |
1218 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1219 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1220 | |
d33b2eba GS |
1221 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1222 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1223 | |
954c1994 GS |
1224 | /* |
1225 | =for apidoc sv_upgrade | |
1226 | ||
ff276b08 | 1227 | Upgrade an SV to a more complex form. Generally adds a new body type to the |
645c22ef | 1228 | SV, then copies across as much information as possible from the old body. |
ff276b08 | 1229 | You generally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. |
954c1994 GS |
1230 | |
1231 | =cut | |
1232 | */ | |
1233 | ||
79072805 | 1234 | bool |
864dbfa3 | 1235 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 | 1236 | { |
c04a4dfe JH |
1237 | char* pv = NULL; |
1238 | U32 cur = 0; | |
1239 | U32 len = 0; | |
1240 | IV iv = 0; | |
1241 | NV nv = 0.0; | |
1242 | MAGIC* magic = NULL; | |
1243 | HV* stash = Nullhv; | |
79072805 | 1244 | |
765f542d NC |
1245 | if (mt != SVt_PV && SvIsCOW(sv)) { |
1246 | sv_force_normal_flags(sv, 0); | |
f130fd45 NIS |
1247 | } |
1248 | ||
79072805 LW |
1249 | if (SvTYPE(sv) == mt) |
1250 | return TRUE; | |
1251 | ||
a5f75d66 AD |
1252 | if (mt < SVt_PVIV) |
1253 | (void)SvOOK_off(sv); | |
1254 | ||
79072805 LW |
1255 | switch (SvTYPE(sv)) { |
1256 | case SVt_NULL: | |
1257 | pv = 0; | |
1258 | cur = 0; | |
1259 | len = 0; | |
1260 | iv = 0; | |
1261 | nv = 0.0; | |
1262 | magic = 0; | |
1263 | stash = 0; | |
1264 | break; | |
79072805 LW |
1265 | case SVt_IV: |
1266 | pv = 0; | |
1267 | cur = 0; | |
1268 | len = 0; | |
463ee0b2 | 1269 | iv = SvIVX(sv); |
65202027 | 1270 | nv = (NV)SvIVX(sv); |
79072805 LW |
1271 | del_XIV(SvANY(sv)); |
1272 | magic = 0; | |
1273 | stash = 0; | |
ed6116ce | 1274 | if (mt == SVt_NV) |
463ee0b2 | 1275 | mt = SVt_PVNV; |
ed6116ce LW |
1276 | else if (mt < SVt_PVIV) |
1277 | mt = SVt_PVIV; | |
79072805 LW |
1278 | break; |
1279 | case SVt_NV: | |
1280 | pv = 0; | |
1281 | cur = 0; | |
1282 | len = 0; | |
463ee0b2 | 1283 | nv = SvNVX(sv); |
1bd302c3 | 1284 | iv = I_V(nv); |
79072805 LW |
1285 | magic = 0; |
1286 | stash = 0; | |
1287 | del_XNV(SvANY(sv)); | |
1288 | SvANY(sv) = 0; | |
ed6116ce | 1289 | if (mt < SVt_PVNV) |
79072805 LW |
1290 | mt = SVt_PVNV; |
1291 | break; | |
ed6116ce LW |
1292 | case SVt_RV: |
1293 | pv = (char*)SvRV(sv); | |
1294 | cur = 0; | |
1295 | len = 0; | |
56431972 RB |
1296 | iv = PTR2IV(pv); |
1297 | nv = PTR2NV(pv); | |
ed6116ce LW |
1298 | del_XRV(SvANY(sv)); |
1299 | magic = 0; | |
1300 | stash = 0; | |
1301 | break; | |
79072805 | 1302 | case SVt_PV: |
463ee0b2 | 1303 | pv = SvPVX(sv); |
79072805 LW |
1304 | cur = SvCUR(sv); |
1305 | len = SvLEN(sv); | |
1306 | iv = 0; | |
1307 | nv = 0.0; | |
1308 | magic = 0; | |
1309 | stash = 0; | |
1310 | del_XPV(SvANY(sv)); | |
748a9306 LW |
1311 | if (mt <= SVt_IV) |
1312 | mt = SVt_PVIV; | |
1313 | else if (mt == SVt_NV) | |
1314 | mt = SVt_PVNV; | |
79072805 LW |
1315 | break; |
1316 | case SVt_PVIV: | |
463ee0b2 | 1317 | pv = SvPVX(sv); |
79072805 LW |
1318 | cur = SvCUR(sv); |
1319 | len = SvLEN(sv); | |
463ee0b2 | 1320 | iv = SvIVX(sv); |
79072805 LW |
1321 | nv = 0.0; |
1322 | magic = 0; | |
1323 | stash = 0; | |
1324 | del_XPVIV(SvANY(sv)); | |
1325 | break; | |
1326 | case SVt_PVNV: | |
463ee0b2 | 1327 | pv = SvPVX(sv); |
79072805 LW |
1328 | cur = SvCUR(sv); |
1329 | len = SvLEN(sv); | |
463ee0b2 LW |
1330 | iv = SvIVX(sv); |
1331 | nv = SvNVX(sv); | |
79072805 LW |
1332 | magic = 0; |
1333 | stash = 0; | |
1334 | del_XPVNV(SvANY(sv)); | |
1335 | break; | |
1336 | case SVt_PVMG: | |
463ee0b2 | 1337 | pv = SvPVX(sv); |
79072805 LW |
1338 | cur = SvCUR(sv); |
1339 | len = SvLEN(sv); | |
463ee0b2 LW |
1340 | iv = SvIVX(sv); |
1341 | nv = SvNVX(sv); | |
79072805 LW |
1342 | magic = SvMAGIC(sv); |
1343 | stash = SvSTASH(sv); | |
1344 | del_XPVMG(SvANY(sv)); | |
1345 | break; | |
1346 | default: | |
cea2e8a9 | 1347 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1348 | } |
1349 | ||
1350 | switch (mt) { | |
1351 | case SVt_NULL: | |
cea2e8a9 | 1352 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1353 | case SVt_IV: |
1354 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 1355 | SvIVX(sv) = iv; |
79072805 LW |
1356 | break; |
1357 | case SVt_NV: | |
1358 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 1359 | SvNVX(sv) = nv; |
79072805 | 1360 | break; |
ed6116ce LW |
1361 | case SVt_RV: |
1362 | SvANY(sv) = new_XRV(); | |
1363 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 1364 | break; |
79072805 LW |
1365 | case SVt_PV: |
1366 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 1367 | SvPVX(sv) = pv; |
79072805 LW |
1368 | SvCUR(sv) = cur; |
1369 | SvLEN(sv) = len; | |
1370 | break; | |
1371 | case SVt_PVIV: | |
1372 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 1373 | SvPVX(sv) = pv; |
79072805 LW |
1374 | SvCUR(sv) = cur; |
1375 | SvLEN(sv) = len; | |
463ee0b2 | 1376 | SvIVX(sv) = iv; |
79072805 | 1377 | if (SvNIOK(sv)) |
a0d0e21e | 1378 | (void)SvIOK_on(sv); |
79072805 LW |
1379 | SvNOK_off(sv); |
1380 | break; | |
1381 | case SVt_PVNV: | |
1382 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 1383 | SvPVX(sv) = pv; |
79072805 LW |
1384 | SvCUR(sv) = cur; |
1385 | SvLEN(sv) = len; | |
463ee0b2 LW |
1386 | SvIVX(sv) = iv; |
1387 | SvNVX(sv) = nv; | |
79072805 LW |
1388 | break; |
1389 | case SVt_PVMG: | |
1390 | SvANY(sv) = new_XPVMG(); | |
463ee0b2 | 1391 | SvPVX(sv) = pv; |
79072805 LW |
1392 | SvCUR(sv) = cur; |
1393 | SvLEN(sv) = len; | |
463ee0b2 LW |
1394 | SvIVX(sv) = iv; |
1395 | SvNVX(sv) = nv; | |
79072805 LW |
1396 | SvMAGIC(sv) = magic; |
1397 | SvSTASH(sv) = stash; | |
1398 | break; | |
1399 | case SVt_PVLV: | |
1400 | SvANY(sv) = new_XPVLV(); | |
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 | SvMAGIC(sv) = magic; |
1407 | SvSTASH(sv) = stash; | |
1408 | LvTARGOFF(sv) = 0; | |
1409 | LvTARGLEN(sv) = 0; | |
1410 | LvTARG(sv) = 0; | |
1411 | LvTYPE(sv) = 0; | |
1412 | break; | |
1413 | case SVt_PVAV: | |
1414 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
1415 | if (pv) |
1416 | Safefree(pv); | |
2304df62 | 1417 | SvPVX(sv) = 0; |
d1bf51dd | 1418 | AvMAX(sv) = -1; |
93965878 | 1419 | AvFILLp(sv) = -1; |
463ee0b2 LW |
1420 | SvIVX(sv) = 0; |
1421 | SvNVX(sv) = 0.0; | |
1422 | SvMAGIC(sv) = magic; | |
1423 | SvSTASH(sv) = stash; | |
1424 | AvALLOC(sv) = 0; | |
79072805 LW |
1425 | AvARYLEN(sv) = 0; |
1426 | AvFLAGS(sv) = 0; | |
1427 | break; | |
1428 | case SVt_PVHV: | |
1429 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1430 | if (pv) |
1431 | Safefree(pv); | |
1432 | SvPVX(sv) = 0; | |
1433 | HvFILL(sv) = 0; | |
1434 | HvMAX(sv) = 0; | |
8aacddc1 NIS |
1435 | HvTOTALKEYS(sv) = 0; |
1436 | HvPLACEHOLDERS(sv) = 0; | |
79072805 LW |
1437 | SvMAGIC(sv) = magic; |
1438 | SvSTASH(sv) = stash; | |
79072805 LW |
1439 | HvRITER(sv) = 0; |
1440 | HvEITER(sv) = 0; | |
1441 | HvPMROOT(sv) = 0; | |
1442 | HvNAME(sv) = 0; | |
79072805 LW |
1443 | break; |
1444 | case SVt_PVCV: | |
1445 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1446 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 1447 | SvPVX(sv) = pv; |
79072805 LW |
1448 | SvCUR(sv) = cur; |
1449 | SvLEN(sv) = len; | |
463ee0b2 LW |
1450 | SvIVX(sv) = iv; |
1451 | SvNVX(sv) = nv; | |
79072805 LW |
1452 | SvMAGIC(sv) = magic; |
1453 | SvSTASH(sv) = stash; | |
79072805 LW |
1454 | break; |
1455 | case SVt_PVGV: | |
1456 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 1457 | SvPVX(sv) = pv; |
79072805 LW |
1458 | SvCUR(sv) = cur; |
1459 | SvLEN(sv) = len; | |
463ee0b2 LW |
1460 | SvIVX(sv) = iv; |
1461 | SvNVX(sv) = nv; | |
79072805 LW |
1462 | SvMAGIC(sv) = magic; |
1463 | SvSTASH(sv) = stash; | |
93a17b20 | 1464 | GvGP(sv) = 0; |
79072805 LW |
1465 | GvNAME(sv) = 0; |
1466 | GvNAMELEN(sv) = 0; | |
1467 | GvSTASH(sv) = 0; | |
a5f75d66 | 1468 | GvFLAGS(sv) = 0; |
79072805 LW |
1469 | break; |
1470 | case SVt_PVBM: | |
1471 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 1472 | SvPVX(sv) = pv; |
79072805 LW |
1473 | SvCUR(sv) = cur; |
1474 | SvLEN(sv) = len; | |
463ee0b2 LW |
1475 | SvIVX(sv) = iv; |
1476 | SvNVX(sv) = nv; | |
79072805 LW |
1477 | SvMAGIC(sv) = magic; |
1478 | SvSTASH(sv) = stash; | |
1479 | BmRARE(sv) = 0; | |
1480 | BmUSEFUL(sv) = 0; | |
1481 | BmPREVIOUS(sv) = 0; | |
1482 | break; | |
1483 | case SVt_PVFM: | |
1484 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1485 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 1486 | SvPVX(sv) = pv; |
79072805 LW |
1487 | SvCUR(sv) = cur; |
1488 | SvLEN(sv) = len; | |
463ee0b2 LW |
1489 | SvIVX(sv) = iv; |
1490 | SvNVX(sv) = nv; | |
79072805 LW |
1491 | SvMAGIC(sv) = magic; |
1492 | SvSTASH(sv) = stash; | |
79072805 | 1493 | break; |
8990e307 LW |
1494 | case SVt_PVIO: |
1495 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1496 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
1497 | SvPVX(sv) = pv; |
1498 | SvCUR(sv) = cur; | |
1499 | SvLEN(sv) = len; | |
1500 | SvIVX(sv) = iv; | |
1501 | SvNVX(sv) = nv; | |
1502 | SvMAGIC(sv) = magic; | |
1503 | SvSTASH(sv) = stash; | |
85e6fe83 | 1504 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1505 | break; |
1506 | } | |
1507 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
1508 | SvFLAGS(sv) |= mt; | |
79072805 LW |
1509 | return TRUE; |
1510 | } | |
1511 | ||
645c22ef DM |
1512 | /* |
1513 | =for apidoc sv_backoff | |
1514 | ||
1515 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1516 | wrapper instead. | |
1517 | ||
1518 | =cut | |
1519 | */ | |
1520 | ||
79072805 | 1521 | int |
864dbfa3 | 1522 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1523 | { |
1524 | assert(SvOOK(sv)); | |
463ee0b2 LW |
1525 | if (SvIVX(sv)) { |
1526 | char *s = SvPVX(sv); | |
1527 | SvLEN(sv) += SvIVX(sv); | |
1528 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 1529 | SvIV_set(sv, 0); |
463ee0b2 | 1530 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1531 | } |
1532 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1533 | return 0; |
79072805 LW |
1534 | } |
1535 | ||
954c1994 GS |
1536 | /* |
1537 | =for apidoc sv_grow | |
1538 | ||
645c22ef DM |
1539 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1540 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1541 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1542 | |
1543 | =cut | |
1544 | */ | |
1545 | ||
79072805 | 1546 | char * |
864dbfa3 | 1547 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1548 | { |
1549 | register char *s; | |
1550 | ||
54f0641b NIS |
1551 | |
1552 | ||
55497cff | 1553 | #ifdef HAS_64K_LIMIT |
79072805 | 1554 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1555 | PerlIO_printf(Perl_debug_log, |
1556 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1557 | my_exit(1); |
1558 | } | |
55497cff | 1559 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1560 | if (SvROK(sv)) |
1561 | sv_unref(sv); | |
79072805 LW |
1562 | if (SvTYPE(sv) < SVt_PV) { |
1563 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 1564 | s = SvPVX(sv); |
79072805 LW |
1565 | } |
1566 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1567 | sv_backoff(sv); | |
463ee0b2 | 1568 | s = SvPVX(sv); |
79072805 LW |
1569 | if (newlen > SvLEN(sv)) |
1570 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1571 | #ifdef HAS_64K_LIMIT |
1572 | if (newlen >= 0x10000) | |
1573 | newlen = 0xFFFF; | |
1574 | #endif | |
79072805 LW |
1575 | } |
1576 | else | |
463ee0b2 | 1577 | s = SvPVX(sv); |
54f0641b | 1578 | |
79072805 | 1579 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 1580 | if (SvLEN(sv) && s) { |
f5a32c7f | 1581 | #if defined(MYMALLOC) && !defined(LEAKTEST) |
8d6dde3e IZ |
1582 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
1583 | if (newlen <= l) { | |
1584 | SvLEN_set(sv, l); | |
1585 | return s; | |
1586 | } else | |
c70c8a0a | 1587 | #endif |
79072805 | 1588 | Renew(s,newlen,char); |
8d6dde3e | 1589 | } |
4e83176d | 1590 | else { |
4e83176d | 1591 | New(703, s, newlen, char); |
40565179 | 1592 | if (SvPVX(sv) && SvCUR(sv)) { |
54f0641b | 1593 | Move(SvPVX(sv), s, (newlen < SvCUR(sv)) ? newlen : SvCUR(sv), char); |
40565179 | 1594 | } |
4e83176d | 1595 | } |
79072805 LW |
1596 | SvPV_set(sv, s); |
1597 | SvLEN_set(sv, newlen); | |
1598 | } | |
1599 | return s; | |
1600 | } | |
1601 | ||
954c1994 GS |
1602 | /* |
1603 | =for apidoc sv_setiv | |
1604 | ||
645c22ef DM |
1605 | Copies an integer into the given SV, upgrading first if necessary. |
1606 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1607 | |
1608 | =cut | |
1609 | */ | |
1610 | ||
79072805 | 1611 | void |
864dbfa3 | 1612 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1613 | { |
765f542d | 1614 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 LW |
1615 | switch (SvTYPE(sv)) { |
1616 | case SVt_NULL: | |
79072805 | 1617 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1618 | break; |
1619 | case SVt_NV: | |
1620 | sv_upgrade(sv, SVt_PVNV); | |
1621 | break; | |
ed6116ce | 1622 | case SVt_RV: |
463ee0b2 | 1623 | case SVt_PV: |
79072805 | 1624 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1625 | break; |
a0d0e21e LW |
1626 | |
1627 | case SVt_PVGV: | |
a0d0e21e LW |
1628 | case SVt_PVAV: |
1629 | case SVt_PVHV: | |
1630 | case SVt_PVCV: | |
1631 | case SVt_PVFM: | |
1632 | case SVt_PVIO: | |
411caa50 | 1633 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
53e06cf0 | 1634 | OP_DESC(PL_op)); |
463ee0b2 | 1635 | } |
a0d0e21e | 1636 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1637 | SvIVX(sv) = i; |
463ee0b2 | 1638 | SvTAINT(sv); |
79072805 LW |
1639 | } |
1640 | ||
954c1994 GS |
1641 | /* |
1642 | =for apidoc sv_setiv_mg | |
1643 | ||
1644 | Like C<sv_setiv>, but also handles 'set' magic. | |
1645 | ||
1646 | =cut | |
1647 | */ | |
1648 | ||
79072805 | 1649 | void |
864dbfa3 | 1650 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1651 | { |
1652 | sv_setiv(sv,i); | |
1653 | SvSETMAGIC(sv); | |
1654 | } | |
1655 | ||
954c1994 GS |
1656 | /* |
1657 | =for apidoc sv_setuv | |
1658 | ||
645c22ef DM |
1659 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1660 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1661 | |
1662 | =cut | |
1663 | */ | |
1664 | ||
ef50df4b | 1665 | void |
864dbfa3 | 1666 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1667 | { |
55ada374 NC |
1668 | /* With these two if statements: |
1669 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1670 | |
55ada374 NC |
1671 | without |
1672 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1673 | |
55ada374 NC |
1674 | If you wish to remove them, please benchmark to see what the effect is |
1675 | */ | |
28e5dec8 JH |
1676 | if (u <= (UV)IV_MAX) { |
1677 | sv_setiv(sv, (IV)u); | |
1678 | return; | |
1679 | } | |
25da4f38 IZ |
1680 | sv_setiv(sv, 0); |
1681 | SvIsUV_on(sv); | |
1682 | SvUVX(sv) = u; | |
55497cff | 1683 | } |
1684 | ||
954c1994 GS |
1685 | /* |
1686 | =for apidoc sv_setuv_mg | |
1687 | ||
1688 | Like C<sv_setuv>, but also handles 'set' magic. | |
1689 | ||
1690 | =cut | |
1691 | */ | |
1692 | ||
55497cff | 1693 | void |
864dbfa3 | 1694 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1695 | { |
55ada374 NC |
1696 | /* With these two if statements: |
1697 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1698 | |
55ada374 NC |
1699 | without |
1700 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1701 | |
55ada374 NC |
1702 | If you wish to remove them, please benchmark to see what the effect is |
1703 | */ | |
28e5dec8 JH |
1704 | if (u <= (UV)IV_MAX) { |
1705 | sv_setiv(sv, (IV)u); | |
1706 | } else { | |
1707 | sv_setiv(sv, 0); | |
1708 | SvIsUV_on(sv); | |
1709 | sv_setuv(sv,u); | |
1710 | } | |
ef50df4b GS |
1711 | SvSETMAGIC(sv); |
1712 | } | |
1713 | ||
954c1994 GS |
1714 | /* |
1715 | =for apidoc sv_setnv | |
1716 | ||
645c22ef DM |
1717 | Copies a double into the given SV, upgrading first if necessary. |
1718 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1719 | |
1720 | =cut | |
1721 | */ | |
1722 | ||
ef50df4b | 1723 | void |
65202027 | 1724 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1725 | { |
765f542d | 1726 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
a0d0e21e LW |
1727 | switch (SvTYPE(sv)) { |
1728 | case SVt_NULL: | |
1729 | case SVt_IV: | |
79072805 | 1730 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1731 | break; |
a0d0e21e LW |
1732 | case SVt_RV: |
1733 | case SVt_PV: | |
1734 | case SVt_PVIV: | |
79072805 | 1735 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1736 | break; |
827b7e14 | 1737 | |
a0d0e21e | 1738 | case SVt_PVGV: |
a0d0e21e LW |
1739 | case SVt_PVAV: |
1740 | case SVt_PVHV: | |
1741 | case SVt_PVCV: | |
1742 | case SVt_PVFM: | |
1743 | case SVt_PVIO: | |
411caa50 | 1744 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
53e06cf0 | 1745 | OP_NAME(PL_op)); |
79072805 | 1746 | } |
463ee0b2 | 1747 | SvNVX(sv) = num; |
a0d0e21e | 1748 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1749 | SvTAINT(sv); |
79072805 LW |
1750 | } |
1751 | ||
954c1994 GS |
1752 | /* |
1753 | =for apidoc sv_setnv_mg | |
1754 | ||
1755 | Like C<sv_setnv>, but also handles 'set' magic. | |
1756 | ||
1757 | =cut | |
1758 | */ | |
1759 | ||
ef50df4b | 1760 | void |
65202027 | 1761 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1762 | { |
1763 | sv_setnv(sv,num); | |
1764 | SvSETMAGIC(sv); | |
1765 | } | |
1766 | ||
645c22ef DM |
1767 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1768 | * printable version of the offending string | |
1769 | */ | |
1770 | ||
76e3520e | 1771 | STATIC void |
cea2e8a9 | 1772 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e | 1773 | { |
94463019 JH |
1774 | SV *dsv; |
1775 | char tmpbuf[64]; | |
1776 | char *pv; | |
1777 | ||
1778 | if (DO_UTF8(sv)) { | |
1779 | dsv = sv_2mortal(newSVpv("", 0)); | |
1780 | pv = sv_uni_display(dsv, sv, 10, 0); | |
1781 | } else { | |
1782 | char *d = tmpbuf; | |
1783 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; | |
1784 | /* each *s can expand to 4 chars + "...\0", | |
1785 | i.e. need room for 8 chars */ | |
ecdeb87c | 1786 | |
94463019 JH |
1787 | char *s, *end; |
1788 | for (s = SvPVX(sv), end = s + SvCUR(sv); s < end && d < limit; s++) { | |
1789 | int ch = *s & 0xFF; | |
1790 | if (ch & 128 && !isPRINT_LC(ch)) { | |
1791 | *d++ = 'M'; | |
1792 | *d++ = '-'; | |
1793 | ch &= 127; | |
1794 | } | |
1795 | if (ch == '\n') { | |
1796 | *d++ = '\\'; | |
1797 | *d++ = 'n'; | |
1798 | } | |
1799 | else if (ch == '\r') { | |
1800 | *d++ = '\\'; | |
1801 | *d++ = 'r'; | |
1802 | } | |
1803 | else if (ch == '\f') { | |
1804 | *d++ = '\\'; | |
1805 | *d++ = 'f'; | |
1806 | } | |
1807 | else if (ch == '\\') { | |
1808 | *d++ = '\\'; | |
1809 | *d++ = '\\'; | |
1810 | } | |
1811 | else if (ch == '\0') { | |
1812 | *d++ = '\\'; | |
1813 | *d++ = '0'; | |
1814 | } | |
1815 | else if (isPRINT_LC(ch)) | |
1816 | *d++ = ch; | |
1817 | else { | |
1818 | *d++ = '^'; | |
1819 | *d++ = toCTRL(ch); | |
1820 | } | |
1821 | } | |
1822 | if (s < end) { | |
1823 | *d++ = '.'; | |
1824 | *d++ = '.'; | |
1825 | *d++ = '.'; | |
1826 | } | |
1827 | *d = '\0'; | |
1828 | pv = tmpbuf; | |
a0d0e21e | 1829 | } |
a0d0e21e | 1830 | |
533c011a | 1831 | if (PL_op) |
9014280d | 1832 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 JH |
1833 | "Argument \"%s\" isn't numeric in %s", pv, |
1834 | OP_DESC(PL_op)); | |
a0d0e21e | 1835 | else |
9014280d | 1836 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 | 1837 | "Argument \"%s\" isn't numeric", pv); |
a0d0e21e LW |
1838 | } |
1839 | ||
c2988b20 NC |
1840 | /* |
1841 | =for apidoc looks_like_number | |
1842 | ||
645c22ef DM |
1843 | Test if the content of an SV looks like a number (or is a number). |
1844 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1845 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1846 | |
1847 | =cut | |
1848 | */ | |
1849 | ||
1850 | I32 | |
1851 | Perl_looks_like_number(pTHX_ SV *sv) | |
1852 | { | |
1853 | register char *sbegin; | |
1854 | STRLEN len; | |
1855 | ||
1856 | if (SvPOK(sv)) { | |
1857 | sbegin = SvPVX(sv); | |
1858 | len = SvCUR(sv); | |
1859 | } | |
1860 | else if (SvPOKp(sv)) | |
1861 | sbegin = SvPV(sv, len); | |
1862 | else | |
1863 | return 1; /* Historic. Wrong? */ | |
1864 | return grok_number(sbegin, len, NULL); | |
1865 | } | |
25da4f38 IZ |
1866 | |
1867 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1868 | until proven guilty, assume that things are not that bad... */ | |
1869 | ||
645c22ef DM |
1870 | /* |
1871 | NV_PRESERVES_UV: | |
1872 | ||
1873 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
1874 | an IV (an assumption perl has been based on to date) it becomes necessary |
1875 | to remove the assumption that the NV always carries enough precision to | |
1876 | recreate the IV whenever needed, and that the NV is the canonical form. | |
1877 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 1878 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
1879 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
1880 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
1881 | conversion where precision was lost and IV/UV/NV slots that have a | |
1882 | valid conversion which has lost no precision | |
645c22ef | 1883 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
1884 | would lose precision, the precise conversion (or differently |
1885 | imprecise conversion) is also performed and cached, to prevent | |
1886 | requests for different numeric formats on the same SV causing | |
1887 | lossy conversion chains. (lossless conversion chains are perfectly | |
1888 | acceptable (still)) | |
1889 | ||
1890 | ||
1891 | flags are used: | |
1892 | SvIOKp is true if the IV slot contains a valid value | |
1893 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
1894 | SvNOKp is true if the NV slot contains a valid value | |
1895 | SvNOK is true only if the NV value is accurate | |
1896 | ||
1897 | so | |
645c22ef | 1898 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
1899 | IV(or UV) would lose accuracy over a direct conversion from PV to |
1900 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
1901 | SV as IOK NOKp (ie not NOK). | |
1902 | ||
645c22ef | 1903 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
1904 | NV would lose accuracy over a direct conversion from PV to NV. If it |
1905 | would, cache both conversions, flag similarly. | |
1906 | ||
1907 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
1908 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
1909 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
1910 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 1911 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 1912 | |
645c22ef DM |
1913 | The benefit of this is that operations such as pp_add know that if |
1914 | SvIOK is true for both left and right operands, then integer addition | |
1915 | can be used instead of floating point (for cases where the result won't | |
1916 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
1917 | loss of precision compared with integer addition. |
1918 | ||
1919 | * making IV and NV equal status should make maths accurate on 64 bit | |
1920 | platforms | |
1921 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 1922 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
1923 | looking for SvIOK and checking for overflow will not outweigh the |
1924 | fp to integer speedup) | |
1925 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
1926 | values, as the change from SvIOK to SvIOKp will cause a call into | |
1927 | sv_2iv each time rather than a macro access direct to the IV slot | |
1928 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 1929 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
1930 | |
1931 | #################################################################### | |
645c22ef DM |
1932 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
1933 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
1934 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
1935 | #################################################################### |
1936 | ||
645c22ef | 1937 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
1938 | performance ratio. |
1939 | */ | |
1940 | ||
1941 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
1942 | # define IS_NUMBER_UNDERFLOW_IV 1 |
1943 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
1944 | # define IS_NUMBER_IV_AND_UV 2 | |
1945 | # define IS_NUMBER_OVERFLOW_IV 4 | |
1946 | # define IS_NUMBER_OVERFLOW_UV 5 | |
1947 | ||
1948 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
1949 | |
1950 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
1951 | STATIC int | |
645c22ef | 1952 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 1953 | { |
1779d84d | 1954 | 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 |
1955 | if (SvNVX(sv) < (NV)IV_MIN) { |
1956 | (void)SvIOKp_on(sv); | |
1957 | (void)SvNOK_on(sv); | |
1958 | SvIVX(sv) = IV_MIN; | |
1959 | return IS_NUMBER_UNDERFLOW_IV; | |
1960 | } | |
1961 | if (SvNVX(sv) > (NV)UV_MAX) { | |
1962 | (void)SvIOKp_on(sv); | |
1963 | (void)SvNOK_on(sv); | |
1964 | SvIsUV_on(sv); | |
1965 | SvUVX(sv) = UV_MAX; | |
1966 | return IS_NUMBER_OVERFLOW_UV; | |
1967 | } | |
c2988b20 NC |
1968 | (void)SvIOKp_on(sv); |
1969 | (void)SvNOK_on(sv); | |
1970 | /* Can't use strtol etc to convert this string. (See truth table in | |
1971 | sv_2iv */ | |
1972 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
1973 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1974 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
1975 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
1976 | } else { | |
1977 | /* Integer is imprecise. NOK, IOKp */ | |
1978 | } | |
1979 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
1980 | } | |
1981 | SvIsUV_on(sv); | |
1982 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1983 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
1984 | if (SvUVX(sv) == UV_MAX) { | |
1985 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
1986 | possibly be preserved by NV. Hence, it must be overflow. | |
1987 | NOK, IOKp */ | |
1988 | return IS_NUMBER_OVERFLOW_UV; | |
1989 | } | |
1990 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
1991 | } else { | |
1992 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 1993 | } |
c2988b20 | 1994 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 1995 | } |
645c22ef DM |
1996 | #endif /* !NV_PRESERVES_UV*/ |
1997 | ||
1998 | /* | |
1999 | =for apidoc sv_2iv | |
2000 | ||
2001 | Return the integer value of an SV, doing any necessary string conversion, | |
2002 | magic etc. Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
2003 | ||
2004 | =cut | |
2005 | */ | |
28e5dec8 | 2006 | |
a0d0e21e | 2007 | IV |
864dbfa3 | 2008 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
2009 | { |
2010 | if (!sv) | |
2011 | return 0; | |
8990e307 | 2012 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2013 | mg_get(sv); |
2014 | if (SvIOKp(sv)) | |
2015 | return SvIVX(sv); | |
748a9306 | 2016 | if (SvNOKp(sv)) { |
25da4f38 | 2017 | return I_V(SvNVX(sv)); |
748a9306 | 2018 | } |
36477c24 | 2019 | if (SvPOKp(sv) && SvLEN(sv)) |
2020 | return asIV(sv); | |
3fe9a6f1 | 2021 | if (!SvROK(sv)) { |
d008e5eb | 2022 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2023 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2024 | report_uninit(); |
c6ee37c5 | 2025 | } |
36477c24 | 2026 | return 0; |
3fe9a6f1 | 2027 | } |
463ee0b2 | 2028 | } |
ed6116ce | 2029 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2030 | if (SvROK(sv)) { |
a0d0e21e | 2031 | SV* tmpstr; |
1554e226 | 2032 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2033 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2034 | return SvIV(tmpstr); |
56431972 | 2035 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2036 | } |
765f542d NC |
2037 | if (SvIsCOW(sv)) { |
2038 | sv_force_normal_flags(sv, 0); | |
47deb5e7 | 2039 | } |
0336b60e | 2040 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2041 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2042 | report_uninit(); |
ed6116ce LW |
2043 | return 0; |
2044 | } | |
79072805 | 2045 | } |
25da4f38 IZ |
2046 | if (SvIOKp(sv)) { |
2047 | if (SvIsUV(sv)) { | |
2048 | return (IV)(SvUVX(sv)); | |
2049 | } | |
2050 | else { | |
2051 | return SvIVX(sv); | |
2052 | } | |
463ee0b2 | 2053 | } |
748a9306 | 2054 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2055 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2056 | * without also getting a cached IV/UV from it at the same time | |
2057 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2058 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2059 | |
2060 | if (SvTYPE(sv) == SVt_NV) | |
2061 | sv_upgrade(sv, SVt_PVNV); | |
2062 | ||
28e5dec8 JH |
2063 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2064 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2065 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2066 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2067 | cases go to UV */ | |
2068 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
748a9306 | 2069 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2070 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2071 | #ifndef NV_PRESERVES_UV | |
2072 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2073 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2074 | /* Don't flag it as "accurately an integer" if the number | |
2075 | came from a (by definition imprecise) NV operation, and | |
2076 | we're outside the range of NV integer precision */ | |
2077 | #endif | |
2078 | ) { | |
2079 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2080 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2081 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2082 | PTR2UV(sv), |
2083 | SvNVX(sv), | |
2084 | SvIVX(sv))); | |
2085 | ||
2086 | } else { | |
2087 | /* IV not precise. No need to convert from PV, as NV | |
2088 | conversion would already have cached IV if it detected | |
2089 | that PV->IV would be better than PV->NV->IV | |
2090 | flags already correct - don't set public IOK. */ | |
2091 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2092 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2093 | PTR2UV(sv), |
2094 | SvNVX(sv), | |
2095 | SvIVX(sv))); | |
2096 | } | |
2097 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2098 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2099 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2100 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2101 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2102 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2103 | Hopefully for 2s complement IV_MIN is something like | |
2104 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2105 | } |
25da4f38 | 2106 | else { |
ff68c719 | 2107 | SvUVX(sv) = U_V(SvNVX(sv)); |
28e5dec8 JH |
2108 | if ( |
2109 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2110 | #ifndef NV_PRESERVES_UV | |
2111 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2112 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2113 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2114 | /* Don't flag it as "accurately an integer" if the number | |
2115 | came from a (by definition imprecise) NV operation, and | |
2116 | we're outside the range of NV integer precision */ | |
2117 | #endif | |
2118 | ) | |
2119 | SvIOK_on(sv); | |
25da4f38 IZ |
2120 | SvIsUV_on(sv); |
2121 | ret_iv_max: | |
1c846c1f | 2122 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2123 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2124 | PTR2UV(sv), |
57def98f JH |
2125 | SvUVX(sv), |
2126 | SvUVX(sv))); | |
25da4f38 IZ |
2127 | return (IV)SvUVX(sv); |
2128 | } | |
748a9306 LW |
2129 | } |
2130 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2131 | UV value; |
2132 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2133 | /* We want to avoid a possible problem when we cache an IV which |
2134 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2135 | the same as the direct translation of the initial string |
2136 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2137 | be careful to ensure that the value with the .456 is around if the | |
2138 | NV value is requested in the future). | |
1c846c1f | 2139 | |
25da4f38 IZ |
2140 | This means that if we cache such an IV, we need to cache the |
2141 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2142 | cache the NV if we are sure it's not needed. |
25da4f38 | 2143 | */ |
16b7a9a4 | 2144 | |
c2988b20 NC |
2145 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2146 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2147 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2148 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2149 | if (SvTYPE(sv) < SVt_PVIV) |
2150 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2151 | (void)SvIOK_on(sv); |
c2988b20 NC |
2152 | } else if (SvTYPE(sv) < SVt_PVNV) |
2153 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2154 | |
c2988b20 NC |
2155 | /* If NV preserves UV then we only use the UV value if we know that |
2156 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2157 | then the value returned may have more precision than atof() will | |
2158 | return, even though value isn't perfectly accurate. */ | |
2159 | if ((numtype & (IS_NUMBER_IN_UV | |
2160 | #ifdef NV_PRESERVES_UV | |
2161 | | IS_NUMBER_NOT_INT | |
2162 | #endif | |
2163 | )) == IS_NUMBER_IN_UV) { | |
2164 | /* This won't turn off the public IOK flag if it was set above */ | |
2165 | (void)SvIOKp_on(sv); | |
2166 | ||
2167 | if (!(numtype & IS_NUMBER_NEG)) { | |
2168 | /* positive */; | |
2169 | if (value <= (UV)IV_MAX) { | |
2170 | SvIVX(sv) = (IV)value; | |
2171 | } else { | |
2172 | SvUVX(sv) = value; | |
2173 | SvIsUV_on(sv); | |
2174 | } | |
2175 | } else { | |
2176 | /* 2s complement assumption */ | |
2177 | if (value <= (UV)IV_MIN) { | |
2178 | SvIVX(sv) = -(IV)value; | |
2179 | } else { | |
2180 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2181 | I'm assuming it will be rare. */ |
c2988b20 NC |
2182 | if (SvTYPE(sv) < SVt_PVNV) |
2183 | sv_upgrade(sv, SVt_PVNV); | |
2184 | SvNOK_on(sv); | |
2185 | SvIOK_off(sv); | |
2186 | SvIOKp_on(sv); | |
2187 | SvNVX(sv) = -(NV)value; | |
2188 | SvIVX(sv) = IV_MIN; | |
2189 | } | |
2190 | } | |
2191 | } | |
2192 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2193 | will be in the previous block to set the IV slot, and the next | |
2194 | block to set the NV slot. So no else here. */ | |
2195 | ||
2196 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2197 | != IS_NUMBER_IN_UV) { | |
2198 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
2199 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2200 | |
c2988b20 NC |
2201 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2202 | not_a_number(sv); | |
28e5dec8 | 2203 | |
65202027 | 2204 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2205 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2206 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2207 | #else |
1779d84d | 2208 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"NVgf")\n", |
c2988b20 | 2209 | PTR2UV(sv), SvNVX(sv))); |
65202027 | 2210 | #endif |
28e5dec8 JH |
2211 | |
2212 | ||
2213 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2214 | (void)SvIOKp_on(sv); |
2215 | (void)SvNOK_on(sv); | |
2216 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2217 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2218 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2219 | SvIOK_on(sv); | |
28e5dec8 | 2220 | } else { |
c2988b20 NC |
2221 | /* Integer is imprecise. NOK, IOKp */ |
2222 | } | |
2223 | /* UV will not work better than IV */ | |
2224 | } else { | |
2225 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2226 | SvIsUV_on(sv); | |
2227 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2228 | SvUVX(sv) = UV_MAX; | |
2229 | SvIsUV_on(sv); | |
2230 | } else { | |
2231 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2232 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ | |
2233 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2234 | SvIOK_on(sv); | |
28e5dec8 JH |
2235 | SvIsUV_on(sv); |
2236 | } else { | |
c2988b20 NC |
2237 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2238 | SvIsUV_on(sv); | |
28e5dec8 | 2239 | } |
28e5dec8 | 2240 | } |
c2988b20 NC |
2241 | goto ret_iv_max; |
2242 | } | |
28e5dec8 | 2243 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2244 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2245 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2246 | /* The IV slot will have been set from value returned by | |
2247 | grok_number above. The NV slot has just been set using | |
2248 | Atof. */ | |
560b0c46 | 2249 | SvNOK_on(sv); |
c2988b20 NC |
2250 | assert (SvIOKp(sv)); |
2251 | } else { | |
2252 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2253 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2254 | /* Small enough to preserve all bits. */ | |
2255 | (void)SvIOKp_on(sv); | |
2256 | SvNOK_on(sv); | |
2257 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2258 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2259 | SvIOK_on(sv); | |
2260 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2261 | this NV is in the preserved range, therefore: */ | |
2262 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2263 | < (UV)IV_MAX)) { | |
1779d84d | 2264 | 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 |
2265 | } |
2266 | } else { | |
2267 | /* IN_UV NOT_INT | |
2268 | 0 0 already failed to read UV. | |
2269 | 0 1 already failed to read UV. | |
2270 | 1 0 you won't get here in this case. IV/UV | |
2271 | slot set, public IOK, Atof() unneeded. | |
2272 | 1 1 already read UV. | |
2273 | so there's no point in sv_2iuv_non_preserve() attempting | |
2274 | to use atol, strtol, strtoul etc. */ | |
2275 | if (sv_2iuv_non_preserve (sv, numtype) | |
2276 | >= IS_NUMBER_OVERFLOW_IV) | |
2277 | goto ret_iv_max; | |
2278 | } | |
2279 | } | |
28e5dec8 | 2280 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2281 | } |
28e5dec8 | 2282 | } else { |
599cee73 | 2283 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2284 | report_uninit(); |
25da4f38 IZ |
2285 | if (SvTYPE(sv) < SVt_IV) |
2286 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2287 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2288 | return 0; |
79072805 | 2289 | } |
1d7c1841 GS |
2290 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2291 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2292 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2293 | } |
2294 | ||
645c22ef DM |
2295 | /* |
2296 | =for apidoc sv_2uv | |
2297 | ||
2298 | Return the unsigned integer value of an SV, doing any necessary string | |
2299 | conversion, magic etc. Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> | |
2300 | macros. | |
2301 | ||
2302 | =cut | |
2303 | */ | |
2304 | ||
ff68c719 | 2305 | UV |
864dbfa3 | 2306 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 2307 | { |
2308 | if (!sv) | |
2309 | return 0; | |
2310 | if (SvGMAGICAL(sv)) { | |
2311 | mg_get(sv); | |
2312 | if (SvIOKp(sv)) | |
2313 | return SvUVX(sv); | |
2314 | if (SvNOKp(sv)) | |
2315 | return U_V(SvNVX(sv)); | |
36477c24 | 2316 | if (SvPOKp(sv) && SvLEN(sv)) |
2317 | return asUV(sv); | |
3fe9a6f1 | 2318 | if (!SvROK(sv)) { |
d008e5eb | 2319 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2320 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2321 | report_uninit(); |
c6ee37c5 | 2322 | } |
36477c24 | 2323 | return 0; |
3fe9a6f1 | 2324 | } |
ff68c719 | 2325 | } |
2326 | if (SvTHINKFIRST(sv)) { | |
2327 | if (SvROK(sv)) { | |
ff68c719 | 2328 | SV* tmpstr; |
1554e226 | 2329 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2330 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2331 | return SvUV(tmpstr); |
56431972 | 2332 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2333 | } |
765f542d NC |
2334 | if (SvIsCOW(sv)) { |
2335 | sv_force_normal_flags(sv, 0); | |
8a818333 | 2336 | } |
0336b60e | 2337 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2338 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2339 | report_uninit(); |
ff68c719 | 2340 | return 0; |
2341 | } | |
2342 | } | |
25da4f38 IZ |
2343 | if (SvIOKp(sv)) { |
2344 | if (SvIsUV(sv)) { | |
2345 | return SvUVX(sv); | |
2346 | } | |
2347 | else { | |
2348 | return (UV)SvIVX(sv); | |
2349 | } | |
ff68c719 | 2350 | } |
2351 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2352 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2353 | * without also getting a cached IV/UV from it at the same time | |
2354 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2355 | * IV or UV at same time to avoid this. */ | |
2356 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2357 | ||
25da4f38 IZ |
2358 | if (SvTYPE(sv) == SVt_NV) |
2359 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2360 | |
2361 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2362 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
f7bbb42a | 2363 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2364 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2365 | #ifndef NV_PRESERVES_UV | |
2366 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2367 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2368 | /* Don't flag it as "accurately an integer" if the number | |
2369 | came from a (by definition imprecise) NV operation, and | |
2370 | we're outside the range of NV integer precision */ | |
2371 | #endif | |
2372 | ) { | |
2373 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2374 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2375 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2376 | PTR2UV(sv), |
2377 | SvNVX(sv), | |
2378 | SvIVX(sv))); | |
2379 | ||
2380 | } else { | |
2381 | /* IV not precise. No need to convert from PV, as NV | |
2382 | conversion would already have cached IV if it detected | |
2383 | that PV->IV would be better than PV->NV->IV | |
2384 | flags already correct - don't set public IOK. */ | |
2385 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2386 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2387 | PTR2UV(sv), |
2388 | SvNVX(sv), | |
2389 | SvIVX(sv))); | |
2390 | } | |
2391 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2392 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2393 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2394 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2395 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2396 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2397 | Hopefully for 2s complement IV_MIN is something like | |
2398 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2399 | } |
28e5dec8 JH |
2400 | else { |
2401 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2402 | if ( | |
2403 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2404 | #ifndef NV_PRESERVES_UV | |
2405 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2406 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2407 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2408 | /* Don't flag it as "accurately an integer" if the number | |
2409 | came from a (by definition imprecise) NV operation, and | |
2410 | we're outside the range of NV integer precision */ | |
2411 | #endif | |
2412 | ) | |
2413 | SvIOK_on(sv); | |
2414 | SvIsUV_on(sv); | |
1c846c1f | 2415 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2416 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2417 | PTR2UV(sv), |
28e5dec8 JH |
2418 | SvUVX(sv), |
2419 | SvUVX(sv))); | |
25da4f38 | 2420 | } |
ff68c719 | 2421 | } |
2422 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2423 | UV value; |
2424 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2425 | |
2426 | /* We want to avoid a possible problem when we cache a UV which | |
2427 | may be later translated to an NV, and the resulting NV is not | |
2428 | the translation of the initial data. | |
1c846c1f | 2429 | |
25da4f38 IZ |
2430 | This means that if we cache such a UV, we need to cache the |
2431 | NV as well. Moreover, we trade speed for space, and do not | |
2432 | cache the NV if not needed. | |
2433 | */ | |
16b7a9a4 | 2434 | |
c2988b20 NC |
2435 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2436 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2437 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2438 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2439 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2440 | sv_upgrade(sv, SVt_PVIV); |
2441 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2442 | } else if (SvTYPE(sv) < SVt_PVNV) |
2443 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2444 | |
c2988b20 NC |
2445 | /* If NV preserves UV then we only use the UV value if we know that |
2446 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2447 | then the value returned may have more precision than atof() will | |
2448 | return, even though it isn't accurate. */ | |
2449 | if ((numtype & (IS_NUMBER_IN_UV | |
2450 | #ifdef NV_PRESERVES_UV | |
2451 | | IS_NUMBER_NOT_INT | |
2452 | #endif | |
2453 | )) == IS_NUMBER_IN_UV) { | |
2454 | /* This won't turn off the public IOK flag if it was set above */ | |
2455 | (void)SvIOKp_on(sv); | |
2456 | ||
2457 | if (!(numtype & IS_NUMBER_NEG)) { | |
2458 | /* positive */; | |
2459 | if (value <= (UV)IV_MAX) { | |
2460 | SvIVX(sv) = (IV)value; | |
28e5dec8 JH |
2461 | } else { |
2462 | /* it didn't overflow, and it was positive. */ | |
c2988b20 | 2463 | SvUVX(sv) = value; |
28e5dec8 JH |
2464 | SvIsUV_on(sv); |
2465 | } | |
c2988b20 NC |
2466 | } else { |
2467 | /* 2s complement assumption */ | |
2468 | if (value <= (UV)IV_MIN) { | |
2469 | SvIVX(sv) = -(IV)value; | |
2470 | } else { | |
2471 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2472 | I'm assuming it will be rare. */ |
c2988b20 NC |
2473 | if (SvTYPE(sv) < SVt_PVNV) |
2474 | sv_upgrade(sv, SVt_PVNV); | |
2475 | SvNOK_on(sv); | |
2476 | SvIOK_off(sv); | |
2477 | SvIOKp_on(sv); | |
2478 | SvNVX(sv) = -(NV)value; | |
2479 | SvIVX(sv) = IV_MIN; | |
2480 | } | |
2481 | } | |
2482 | } | |
2483 | ||
2484 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2485 | != IS_NUMBER_IN_UV) { | |
2486 | /* It wasn't an integer, or it overflowed the UV. */ | |
2487 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2488 | |
c2988b20 | 2489 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2490 | not_a_number(sv); |
2491 | ||
2492 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2493 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2494 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2495 | #else |
1779d84d | 2496 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"NVgf")\n", |
c2988b20 | 2497 | PTR2UV(sv), SvNVX(sv))); |
28e5dec8 JH |
2498 | #endif |
2499 | ||
2500 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2501 | (void)SvIOKp_on(sv); |
2502 | (void)SvNOK_on(sv); | |
2503 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2504 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2505 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2506 | SvIOK_on(sv); | |
2507 | } else { | |
2508 | /* Integer is imprecise. NOK, IOKp */ | |
2509 | } | |
2510 | /* UV will not work better than IV */ | |
2511 | } else { | |
2512 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2513 | SvIsUV_on(sv); | |
2514 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2515 | SvUVX(sv) = UV_MAX; | |
2516 | SvIsUV_on(sv); | |
2517 | } else { | |
2518 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2519 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs | |
2520 | NV preservse UV so can do correct comparison. */ | |
2521 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2522 | SvIOK_on(sv); | |
2523 | SvIsUV_on(sv); | |
2524 | } else { | |
2525 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2526 | SvIsUV_on(sv); | |
2527 | } | |
2528 | } | |
2529 | } | |
28e5dec8 | 2530 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2531 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2532 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2533 | /* The UV slot will have been set from value returned by | |
2534 | grok_number above. The NV slot has just been set using | |
2535 | Atof. */ | |
560b0c46 | 2536 | SvNOK_on(sv); |
c2988b20 NC |
2537 | assert (SvIOKp(sv)); |
2538 | } else { | |
2539 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2540 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2541 | /* Small enough to preserve all bits. */ | |
2542 | (void)SvIOKp_on(sv); | |
2543 | SvNOK_on(sv); | |
2544 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2545 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2546 | SvIOK_on(sv); | |
2547 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2548 | this NV is in the preserved range, therefore: */ | |
2549 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2550 | < (UV)IV_MAX)) { | |
1779d84d | 2551 | 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 |
2552 | } |
2553 | } else | |
2554 | sv_2iuv_non_preserve (sv, numtype); | |
2555 | } | |
28e5dec8 | 2556 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2557 | } |
ff68c719 | 2558 | } |
2559 | else { | |
d008e5eb | 2560 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2561 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2562 | report_uninit(); |
c6ee37c5 | 2563 | } |
25da4f38 IZ |
2564 | if (SvTYPE(sv) < SVt_IV) |
2565 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2566 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2567 | return 0; |
2568 | } | |
25da4f38 | 2569 | |
1d7c1841 GS |
2570 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2571 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2572 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2573 | } |
2574 | ||
645c22ef DM |
2575 | /* |
2576 | =for apidoc sv_2nv | |
2577 | ||
2578 | Return the num value of an SV, doing any necessary string or integer | |
2579 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2580 | macros. | |
2581 | ||
2582 | =cut | |
2583 | */ | |
2584 | ||
65202027 | 2585 | NV |
864dbfa3 | 2586 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2587 | { |
2588 | if (!sv) | |
2589 | return 0.0; | |
8990e307 | 2590 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2591 | mg_get(sv); |
2592 | if (SvNOKp(sv)) | |
2593 | return SvNVX(sv); | |
a0d0e21e | 2594 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2595 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
2596 | !grok_number(SvPVX(sv), SvCUR(sv), NULL)) | |
a0d0e21e | 2597 | not_a_number(sv); |
097ee67d | 2598 | return Atof(SvPVX(sv)); |
a0d0e21e | 2599 | } |
25da4f38 | 2600 | if (SvIOKp(sv)) { |
1c846c1f | 2601 | if (SvIsUV(sv)) |
65202027 | 2602 | return (NV)SvUVX(sv); |
25da4f38 | 2603 | else |
65202027 | 2604 | return (NV)SvIVX(sv); |
25da4f38 | 2605 | } |
16d20bd9 | 2606 | if (!SvROK(sv)) { |
d008e5eb | 2607 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2608 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2609 | report_uninit(); |
c6ee37c5 | 2610 | } |
16d20bd9 AD |
2611 | return 0; |
2612 | } | |
463ee0b2 | 2613 | } |
ed6116ce | 2614 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2615 | if (SvROK(sv)) { |
a0d0e21e | 2616 | SV* tmpstr; |
1554e226 | 2617 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2618 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2619 | return SvNV(tmpstr); |
56431972 | 2620 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2621 | } |
765f542d NC |
2622 | if (SvIsCOW(sv)) { |
2623 | sv_force_normal_flags(sv, 0); | |
8a818333 | 2624 | } |
0336b60e | 2625 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2626 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2627 | report_uninit(); |
ed6116ce LW |
2628 | return 0.0; |
2629 | } | |
79072805 LW |
2630 | } |
2631 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2632 | if (SvTYPE(sv) == SVt_IV) |
2633 | sv_upgrade(sv, SVt_PVNV); | |
2634 | else | |
2635 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2636 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2637 | DEBUG_c({ |
f93f4e46 | 2638 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2639 | PerlIO_printf(Perl_debug_log, |
2640 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2641 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2642 | RESTORE_NUMERIC_LOCAL(); |
2643 | }); | |
65202027 | 2644 | #else |
572bbb43 | 2645 | DEBUG_c({ |
f93f4e46 | 2646 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2647 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%"NVgf")\n", |
1d7c1841 | 2648 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2649 | RESTORE_NUMERIC_LOCAL(); |
2650 | }); | |
572bbb43 | 2651 | #endif |
79072805 LW |
2652 | } |
2653 | else if (SvTYPE(sv) < SVt_PVNV) | |
2654 | sv_upgrade(sv, SVt_PVNV); | |
59d8ce62 NC |
2655 | if (SvNOKp(sv)) { |
2656 | return SvNVX(sv); | |
61604483 | 2657 | } |
59d8ce62 | 2658 | if (SvIOKp(sv)) { |
65202027 | 2659 | SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv); |
28e5dec8 JH |
2660 | #ifdef NV_PRESERVES_UV |
2661 | SvNOK_on(sv); | |
2662 | #else | |
2663 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2664 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2665 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2666 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2667 | SvNOK_on(sv); | |
2668 | else | |
2669 | SvNOKp_on(sv); | |
2670 | #endif | |
93a17b20 | 2671 | } |
748a9306 | 2672 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2673 | UV value; |
2674 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2675 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) | |
a0d0e21e | 2676 | not_a_number(sv); |
28e5dec8 | 2677 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2678 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2679 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2680 | /* It's definitely an integer */ |
c2988b20 NC |
2681 | SvNVX(sv) = (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value; |
2682 | } else | |
2683 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 JH |
2684 | SvNOK_on(sv); |
2685 | #else | |
c2988b20 | 2686 | SvNVX(sv) = Atof(SvPVX(sv)); |
28e5dec8 JH |
2687 | /* Only set the public NV OK flag if this NV preserves the value in |
2688 | the PV at least as well as an IV/UV would. | |
2689 | Not sure how to do this 100% reliably. */ | |
2690 | /* if that shift count is out of range then Configure's test is | |
2691 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2692 | UV_BITS */ | |
2693 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2694 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2695 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2696 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2697 | /* Can't use strtol etc to convert this string, so don't try. | |
2698 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2699 | SvNOK_on(sv); | |
2700 | } else { | |
2701 | /* value has been set. It may not be precise. */ | |
2702 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2703 | /* 2s complement assumption for (UV)IV_MIN */ | |
2704 | SvNOK_on(sv); /* Integer is too negative. */ | |
2705 | } else { | |
2706 | SvNOKp_on(sv); | |
2707 | SvIOKp_on(sv); | |
6fa402ec | 2708 | |
c2988b20 NC |
2709 | if (numtype & IS_NUMBER_NEG) { |
2710 | SvIVX(sv) = -(IV)value; | |
2711 | } else if (value <= (UV)IV_MAX) { | |
2712 | SvIVX(sv) = (IV)value; | |
2713 | } else { | |
2714 | SvUVX(sv) = value; | |
2715 | SvIsUV_on(sv); | |
2716 | } | |
2717 | ||
2718 | if (numtype & IS_NUMBER_NOT_INT) { | |
2719 | /* I believe that even if the original PV had decimals, | |
2720 | they are lost beyond the limit of the FP precision. | |
2721 | However, neither is canonical, so both only get p | |
2722 | flags. NWC, 2000/11/25 */ | |
2723 | /* Both already have p flags, so do nothing */ | |
2724 | } else { | |
2725 | NV nv = SvNVX(sv); | |
2726 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2727 | if (SvIVX(sv) == I_V(nv)) { | |
2728 | SvNOK_on(sv); | |
2729 | SvIOK_on(sv); | |
2730 | } else { | |
2731 | SvIOK_on(sv); | |
2732 | /* It had no "." so it must be integer. */ | |
2733 | } | |
2734 | } else { | |
2735 | /* between IV_MAX and NV(UV_MAX). | |
2736 | Could be slightly > UV_MAX */ | |
6fa402ec | 2737 | |
c2988b20 NC |
2738 | if (numtype & IS_NUMBER_NOT_INT) { |
2739 | /* UV and NV both imprecise. */ | |
2740 | } else { | |
2741 | UV nv_as_uv = U_V(nv); | |
2742 | ||
2743 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2744 | SvNOK_on(sv); | |
2745 | SvIOK_on(sv); | |
2746 | } else { | |
2747 | SvIOK_on(sv); | |
2748 | } | |
2749 | } | |
2750 | } | |
2751 | } | |
2752 | } | |
2753 | } | |
28e5dec8 | 2754 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2755 | } |
79072805 | 2756 | else { |
599cee73 | 2757 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2758 | report_uninit(); |
25da4f38 IZ |
2759 | if (SvTYPE(sv) < SVt_NV) |
2760 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2761 | /* XXX Ilya implies that this is a bug in callers that assume this |
2762 | and ideally should be fixed. */ | |
25da4f38 | 2763 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2764 | return 0.0; |
79072805 | 2765 | } |
572bbb43 | 2766 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2767 | DEBUG_c({ |
f93f4e46 | 2768 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2769 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2770 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2771 | RESTORE_NUMERIC_LOCAL(); |
2772 | }); | |
65202027 | 2773 | #else |
572bbb43 | 2774 | DEBUG_c({ |
f93f4e46 | 2775 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2776 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%"NVgf")\n", |
1d7c1841 | 2777 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2778 | RESTORE_NUMERIC_LOCAL(); |
2779 | }); | |
572bbb43 | 2780 | #endif |
463ee0b2 | 2781 | return SvNVX(sv); |
79072805 LW |
2782 | } |
2783 | ||
645c22ef DM |
2784 | /* asIV(): extract an integer from the string value of an SV. |
2785 | * Caller must validate PVX */ | |
2786 | ||
76e3520e | 2787 | STATIC IV |
cea2e8a9 | 2788 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2789 | { |
c2988b20 NC |
2790 | UV value; |
2791 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2792 | ||
2793 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2794 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2795 | /* It's definitely an integer */ |
c2988b20 NC |
2796 | if (numtype & IS_NUMBER_NEG) { |
2797 | if (value < (UV)IV_MIN) | |
2798 | return -(IV)value; | |
2799 | } else { | |
2800 | if (value < (UV)IV_MAX) | |
2801 | return (IV)value; | |
2802 | } | |
2803 | } | |
d008e5eb | 2804 | if (!numtype) { |
d008e5eb GS |
2805 | if (ckWARN(WARN_NUMERIC)) |
2806 | not_a_number(sv); | |
2807 | } | |
c2988b20 | 2808 | return I_V(Atof(SvPVX(sv))); |
36477c24 | 2809 | } |
2810 | ||
645c22ef DM |
2811 | /* asUV(): extract an unsigned integer from the string value of an SV |
2812 | * Caller must validate PVX */ | |
2813 | ||
76e3520e | 2814 | STATIC UV |
cea2e8a9 | 2815 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2816 | { |
c2988b20 NC |
2817 | UV value; |
2818 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
36477c24 | 2819 | |
c2988b20 NC |
2820 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2821 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2822 | /* It's definitely an integer */ |
6fa402ec | 2823 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2824 | return value; |
2825 | } | |
d008e5eb | 2826 | if (!numtype) { |
d008e5eb GS |
2827 | if (ckWARN(WARN_NUMERIC)) |
2828 | not_a_number(sv); | |
2829 | } | |
097ee67d | 2830 | return U_V(Atof(SvPVX(sv))); |
36477c24 | 2831 | } |
2832 | ||
645c22ef DM |
2833 | /* |
2834 | =for apidoc sv_2pv_nolen | |
2835 | ||
2836 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2837 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2838 | =cut | |
2839 | */ | |
2840 | ||
79072805 | 2841 | char * |
864dbfa3 | 2842 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
2843 | { |
2844 | STRLEN n_a; | |
2845 | return sv_2pv(sv, &n_a); | |
2846 | } | |
2847 | ||
645c22ef DM |
2848 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2849 | * UV as a string towards the end of buf, and return pointers to start and | |
2850 | * end of it. | |
2851 | * | |
2852 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2853 | */ | |
2854 | ||
864dbfa3 | 2855 | static char * |
25da4f38 IZ |
2856 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
2857 | { | |
25da4f38 IZ |
2858 | char *ptr = buf + TYPE_CHARS(UV); |
2859 | char *ebuf = ptr; | |
2860 | int sign; | |
25da4f38 IZ |
2861 | |
2862 | if (is_uv) | |
2863 | sign = 0; | |
2864 | else if (iv >= 0) { | |
2865 | uv = iv; | |
2866 | sign = 0; | |
2867 | } else { | |
2868 | uv = -iv; | |
2869 | sign = 1; | |
2870 | } | |
2871 | do { | |
eb160463 | 2872 | *--ptr = '0' + (char)(uv % 10); |
25da4f38 IZ |
2873 | } while (uv /= 10); |
2874 | if (sign) | |
2875 | *--ptr = '-'; | |
2876 | *peob = ebuf; | |
2877 | return ptr; | |
2878 | } | |
2879 | ||
645c22ef DM |
2880 | /* |
2881 | =for apidoc sv_2pv_flags | |
2882 | ||
ff276b08 | 2883 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
2884 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
2885 | if necessary. | |
2886 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
2887 | usually end up here too. | |
2888 | ||
2889 | =cut | |
2890 | */ | |
2891 | ||
8d6d96c1 HS |
2892 | char * |
2893 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
2894 | { | |
79072805 LW |
2895 | register char *s; |
2896 | int olderrno; | |
46fc3d4c | 2897 | SV *tsv; |
25da4f38 IZ |
2898 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
2899 | char *tmpbuf = tbuf; | |
79072805 | 2900 | |
463ee0b2 LW |
2901 | if (!sv) { |
2902 | *lp = 0; | |
2903 | return ""; | |
2904 | } | |
8990e307 | 2905 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
2906 | if (flags & SV_GMAGIC) |
2907 | mg_get(sv); | |
463ee0b2 LW |
2908 | if (SvPOKp(sv)) { |
2909 | *lp = SvCUR(sv); | |
2910 | return SvPVX(sv); | |
2911 | } | |
cf2093f6 | 2912 | if (SvIOKp(sv)) { |
1c846c1f | 2913 | if (SvIsUV(sv)) |
57def98f | 2914 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 2915 | else |
57def98f | 2916 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 2917 | tsv = Nullsv; |
a0d0e21e | 2918 | goto tokensave; |
463ee0b2 LW |
2919 | } |
2920 | if (SvNOKp(sv)) { | |
2d4389e4 | 2921 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 2922 | tsv = Nullsv; |
a0d0e21e | 2923 | goto tokensave; |
463ee0b2 | 2924 | } |
16d20bd9 | 2925 | if (!SvROK(sv)) { |
d008e5eb | 2926 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2927 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2928 | report_uninit(); |
c6ee37c5 | 2929 | } |
16d20bd9 AD |
2930 | *lp = 0; |
2931 | return ""; | |
2932 | } | |
463ee0b2 | 2933 | } |
ed6116ce LW |
2934 | if (SvTHINKFIRST(sv)) { |
2935 | if (SvROK(sv)) { | |
a0d0e21e | 2936 | SV* tmpstr; |
1554e226 | 2937 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
446eaa42 YST |
2938 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) { |
2939 | char *pv = SvPV(tmpstr, *lp); | |
2940 | if (SvUTF8(tmpstr)) | |
2941 | SvUTF8_on(sv); | |
2942 | else | |
2943 | SvUTF8_off(sv); | |
2944 | return pv; | |
2945 | } | |
ed6116ce LW |
2946 | sv = (SV*)SvRV(sv); |
2947 | if (!sv) | |
2948 | s = "NULLREF"; | |
2949 | else { | |
f9277f47 IZ |
2950 | MAGIC *mg; |
2951 | ||
ed6116ce | 2952 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
2953 | case SVt_PVMG: |
2954 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 2955 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
3149a8e4 | 2956 | == (SVs_OBJECT|SVs_RMG)) |
14befaf4 | 2957 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
2cd61cdb | 2958 | regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 2959 | |
2cd61cdb | 2960 | if (!mg->mg_ptr) { |
8782bef2 GB |
2961 | char *fptr = "msix"; |
2962 | char reflags[6]; | |
2963 | char ch; | |
2964 | int left = 0; | |
2965 | int right = 4; | |
ff385a1b | 2966 | char need_newline = 0; |
eb160463 | 2967 | U16 reganch = (U16)((re->reganch & PMf_COMPILETIME) >> 12); |
8782bef2 | 2968 | |
155aba94 | 2969 | while((ch = *fptr++)) { |
8782bef2 GB |
2970 | if(reganch & 1) { |
2971 | reflags[left++] = ch; | |
2972 | } | |
2973 | else { | |
2974 | reflags[right--] = ch; | |
2975 | } | |
2976 | reganch >>= 1; | |
2977 | } | |
2978 | if(left != 4) { | |
2979 | reflags[left] = '-'; | |
2980 | left = 5; | |
2981 | } | |
2982 | ||
2983 | mg->mg_len = re->prelen + 4 + left; | |
ff385a1b JF |
2984 | /* |
2985 | * If /x was used, we have to worry about a regex | |
2986 | * ending with a comment later being embedded | |
2987 | * within another regex. If so, we don't want this | |
2988 | * regex's "commentization" to leak out to the | |
2989 | * right part of the enclosing regex, we must cap | |
2990 | * it with a newline. | |
2991 | * | |
2992 | * So, if /x was used, we scan backwards from the | |
2993 | * end of the regex. If we find a '#' before we | |
2994 | * find a newline, we need to add a newline | |
2995 | * ourself. If we find a '\n' first (or if we | |
2996 | * don't find '#' or '\n'), we don't need to add | |
2997 | * anything. -jfriedl | |
2998 | */ | |
2999 | if (PMf_EXTENDED & re->reganch) | |
3000 | { | |
3001 | char *endptr = re->precomp + re->prelen; | |
3002 | while (endptr >= re->precomp) | |
3003 | { | |
3004 | char c = *(endptr--); | |
3005 | if (c == '\n') | |
3006 | break; /* don't need another */ | |
3007 | if (c == '#') { | |
3008 | /* we end while in a comment, so we | |
3009 | need a newline */ | |
3010 | mg->mg_len++; /* save space for it */ | |
3011 | need_newline = 1; /* note to add it */ | |
3012 | } | |
3013 | } | |
3014 | } | |
3015 | ||
8782bef2 GB |
3016 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); |
3017 | Copy("(?", mg->mg_ptr, 2, char); | |
3018 | Copy(reflags, mg->mg_ptr+2, left, char); | |
3019 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
3020 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
ff385a1b JF |
3021 | if (need_newline) |
3022 | mg->mg_ptr[mg->mg_len - 2] = '\n'; | |
1bd3ad17 IZ |
3023 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
3024 | mg->mg_ptr[mg->mg_len] = 0; | |
3025 | } | |
3280af22 | 3026 | PL_reginterp_cnt += re->program[0].next_off; |
1bd3ad17 IZ |
3027 | *lp = mg->mg_len; |
3028 | return mg->mg_ptr; | |
f9277f47 IZ |
3029 | } |
3030 | /* Fall through */ | |
ed6116ce LW |
3031 | case SVt_NULL: |
3032 | case SVt_IV: | |
3033 | case SVt_NV: | |
3034 | case SVt_RV: | |
3035 | case SVt_PV: | |
3036 | case SVt_PVIV: | |
3037 | case SVt_PVNV: | |
81689caa HS |
3038 | case SVt_PVBM: if (SvROK(sv)) |
3039 | s = "REF"; | |
3040 | else | |
3041 | s = "SCALAR"; break; | |
ed6116ce LW |
3042 | case SVt_PVLV: s = "LVALUE"; break; |
3043 | case SVt_PVAV: s = "ARRAY"; break; | |
3044 | case SVt_PVHV: s = "HASH"; break; | |
3045 | case SVt_PVCV: s = "CODE"; break; | |
3046 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 3047 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 3048 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
3049 | default: s = "UNKNOWN"; break; |
3050 | } | |
46fc3d4c | 3051 | tsv = NEWSV(0,0); |
c86bf373 AMS |
3052 | if (SvOBJECT(sv)) { |
3053 | HV *svs = SvSTASH(sv); | |
3054 | Perl_sv_setpvf( | |
3055 | aTHX_ tsv, "%s=%s", | |
3056 | /* [20011101.072] This bandaid for C<package;> | |
3057 | should eventually be removed. AMS 20011103 */ | |
3058 | (svs ? HvNAME(svs) : "<none>"), s | |
3059 | ); | |
3060 | } | |
ed6116ce | 3061 | else |
46fc3d4c | 3062 | sv_setpv(tsv, s); |
57def98f | 3063 | Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv)); |
a0d0e21e | 3064 | goto tokensaveref; |
463ee0b2 | 3065 | } |
ed6116ce LW |
3066 | *lp = strlen(s); |
3067 | return s; | |
79072805 | 3068 | } |
0336b60e | 3069 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3070 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 3071 | report_uninit(); |
ed6116ce LW |
3072 | *lp = 0; |
3073 | return ""; | |
79072805 | 3074 | } |
79072805 | 3075 | } |
28e5dec8 JH |
3076 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3077 | /* I'm assuming that if both IV and NV are equally valid then | |
3078 | converting the IV is going to be more efficient */ | |
3079 | U32 isIOK = SvIOK(sv); | |
3080 | U32 isUIOK = SvIsUV(sv); | |
3081 | char buf[TYPE_CHARS(UV)]; | |
3082 | char *ebuf, *ptr; | |
3083 | ||
3084 | if (SvTYPE(sv) < SVt_PVIV) | |
3085 | sv_upgrade(sv, SVt_PVIV); | |
3086 | if (isUIOK) | |
3087 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3088 | else | |
3089 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
eb160463 | 3090 | SvGROW(sv, (STRLEN)(ebuf - ptr + 1)); /* inlined from sv_setpvn */ |
28e5dec8 JH |
3091 | Move(ptr,SvPVX(sv),ebuf - ptr,char); |
3092 | SvCUR_set(sv, ebuf - ptr); | |
3093 | s = SvEND(sv); | |
3094 | *s = '\0'; | |
3095 | if (isIOK) | |
3096 | SvIOK_on(sv); | |
3097 | else | |
3098 | SvIOKp_on(sv); | |
3099 | if (isUIOK) | |
3100 | SvIsUV_on(sv); | |
3101 | } | |
3102 | else if (SvNOKp(sv)) { | |
79072805 LW |
3103 | if (SvTYPE(sv) < SVt_PVNV) |
3104 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3105 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
59155cc0 | 3106 | SvGROW(sv, NV_DIG + 20); |
463ee0b2 | 3107 | s = SvPVX(sv); |
79072805 | 3108 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3109 | #ifdef apollo |
463ee0b2 | 3110 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3111 | (void)strcpy(s,"0"); |
3112 | else | |
3113 | #endif /*apollo*/ | |
bbce6d69 | 3114 | { |
2d4389e4 | 3115 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3116 | } |
79072805 | 3117 | errno = olderrno; |
a0d0e21e LW |
3118 | #ifdef FIXNEGATIVEZERO |
3119 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3120 | strcpy(s,"0"); | |
3121 | #endif | |
79072805 LW |
3122 | while (*s) s++; |
3123 | #ifdef hcx | |
3124 | if (s[-1] == '.') | |
46fc3d4c | 3125 | *--s = '\0'; |
79072805 LW |
3126 | #endif |
3127 | } | |
79072805 | 3128 | else { |
0336b60e IZ |
3129 | if (ckWARN(WARN_UNINITIALIZED) |
3130 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
1d7c1841 | 3131 | report_uninit(); |
a0d0e21e | 3132 | *lp = 0; |
25da4f38 IZ |
3133 | if (SvTYPE(sv) < SVt_PV) |
3134 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3135 | sv_upgrade(sv, SVt_PV); | |
a0d0e21e | 3136 | return ""; |
79072805 | 3137 | } |
463ee0b2 LW |
3138 | *lp = s - SvPVX(sv); |
3139 | SvCUR_set(sv, *lp); | |
79072805 | 3140 | SvPOK_on(sv); |
1d7c1841 GS |
3141 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3142 | PTR2UV(sv),SvPVX(sv))); | |
463ee0b2 | 3143 | return SvPVX(sv); |
a0d0e21e LW |
3144 | |
3145 | tokensave: | |
3146 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3147 | /* Sneaky stuff here */ | |
3148 | ||
3149 | tokensaveref: | |
46fc3d4c | 3150 | if (!tsv) |
96827780 | 3151 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3152 | sv_2mortal(tsv); |
3153 | *lp = SvCUR(tsv); | |
3154 | return SvPVX(tsv); | |
a0d0e21e LW |
3155 | } |
3156 | else { | |
3157 | STRLEN len; | |
46fc3d4c | 3158 | char *t; |
3159 | ||
3160 | if (tsv) { | |
3161 | sv_2mortal(tsv); | |
3162 | t = SvPVX(tsv); | |
3163 | len = SvCUR(tsv); | |
3164 | } | |
3165 | else { | |
96827780 MB |
3166 | t = tmpbuf; |
3167 | len = strlen(tmpbuf); | |
46fc3d4c | 3168 | } |
a0d0e21e | 3169 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3170 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3171 | t = "0"; | |
3172 | len = 1; | |
3173 | } | |
a0d0e21e LW |
3174 | #endif |
3175 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 3176 | *lp = len; |
a0d0e21e LW |
3177 | s = SvGROW(sv, len + 1); |
3178 | SvCUR_set(sv, len); | |
46fc3d4c | 3179 | (void)strcpy(s, t); |
6bf554b4 | 3180 | SvPOKp_on(sv); |
a0d0e21e LW |
3181 | return s; |
3182 | } | |
463ee0b2 LW |
3183 | } |
3184 | ||
645c22ef | 3185 | /* |
6050d10e JP |
3186 | =for apidoc sv_copypv |
3187 | ||
3188 | Copies a stringified representation of the source SV into the | |
3189 | destination SV. Automatically performs any necessary mg_get and | |
54f0641b | 3190 | coercion of numeric values into strings. Guaranteed to preserve |
6050d10e | 3191 | UTF-8 flag even from overloaded objects. Similar in nature to |
54f0641b NIS |
3192 | sv_2pv[_flags] but operates directly on an SV instead of just the |
3193 | string. Mostly uses sv_2pv_flags to do its work, except when that | |
6050d10e JP |
3194 | would lose the UTF-8'ness of the PV. |
3195 | ||
3196 | =cut | |
3197 | */ | |
3198 | ||
3199 | void | |
3200 | Perl_sv_copypv(pTHX_ SV *dsv, register SV *ssv) | |
3201 | { | |
446eaa42 YST |
3202 | SV *tmpsv = sv_newmortal(); |
3203 | STRLEN len; | |
3204 | char *s; | |
3205 | s = SvPV(ssv,len); | |
3206 | sv_setpvn(tmpsv,s,len); | |
3207 | if (SvUTF8(ssv)) | |
3208 | SvUTF8_on(tmpsv); | |
3209 | else | |
3210 | SvUTF8_off(tmpsv); | |
3211 | SvSetSV(dsv,tmpsv); | |
6050d10e JP |
3212 | } |
3213 | ||
3214 | /* | |
645c22ef DM |
3215 | =for apidoc sv_2pvbyte_nolen |
3216 | ||
3217 | Return a pointer to the byte-encoded representation of the SV. | |
3218 | May cause the SV to be downgraded from UTF8 as a side-effect. | |
3219 | ||
3220 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3221 | ||
3222 | =cut | |
3223 | */ | |
3224 | ||
7340a771 GS |
3225 | char * |
3226 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3227 | { | |
560a288e GS |
3228 | STRLEN n_a; |
3229 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
3230 | } |
3231 | ||
645c22ef DM |
3232 | /* |
3233 | =for apidoc sv_2pvbyte | |
3234 | ||
3235 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
3236 | to its length. May cause the SV to be downgraded from UTF8 as a | |
3237 | side-effect. | |
3238 | ||
3239 | Usually accessed via the C<SvPVbyte> macro. | |
3240 | ||
3241 | =cut | |
3242 | */ | |
3243 | ||
7340a771 GS |
3244 | char * |
3245 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3246 | { | |
0875d2fe NIS |
3247 | sv_utf8_downgrade(sv,0); |
3248 | return SvPV(sv,*lp); | |
7340a771 GS |
3249 | } |
3250 | ||
645c22ef DM |
3251 | /* |
3252 | =for apidoc sv_2pvutf8_nolen | |
3253 | ||
3254 | Return a pointer to the UTF8-encoded representation of the SV. | |
3255 | May cause the SV to be upgraded to UTF8 as a side-effect. | |
3256 | ||
3257 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3258 | ||
3259 | =cut | |
3260 | */ | |
3261 | ||
7340a771 GS |
3262 | char * |
3263 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3264 | { | |
560a288e GS |
3265 | STRLEN n_a; |
3266 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
3267 | } |
3268 | ||
645c22ef DM |
3269 | /* |
3270 | =for apidoc sv_2pvutf8 | |
3271 | ||
3272 | Return a pointer to the UTF8-encoded representation of the SV, and set *lp | |
3273 | to its length. May cause the SV to be upgraded to UTF8 as a side-effect. | |
3274 | ||
3275 | Usually accessed via the C<SvPVutf8> macro. | |
3276 | ||
3277 | =cut | |
3278 | */ | |
3279 | ||
7340a771 GS |
3280 | char * |
3281 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3282 | { | |
560a288e | 3283 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3284 | return SvPV(sv,*lp); |
7340a771 | 3285 | } |
1c846c1f | 3286 | |
645c22ef DM |
3287 | /* |
3288 | =for apidoc sv_2bool | |
3289 | ||
3290 | This function is only called on magical items, and is only used by | |
8cf8f3d1 | 3291 | sv_true() or its macro equivalent. |
645c22ef DM |
3292 | |
3293 | =cut | |
3294 | */ | |
3295 | ||
463ee0b2 | 3296 | bool |
864dbfa3 | 3297 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3298 | { |
8990e307 | 3299 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3300 | mg_get(sv); |
3301 | ||
a0d0e21e LW |
3302 | if (!SvOK(sv)) |
3303 | return 0; | |
3304 | if (SvROK(sv)) { | |
a0d0e21e | 3305 | SV* tmpsv; |
1554e226 | 3306 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
9e3013b1 | 3307 | (!SvROK(tmpsv) || (SvRV(tmpsv) != SvRV(sv)))) |
8a31060d | 3308 | return (bool)SvTRUE(tmpsv); |
a0d0e21e LW |
3309 | return SvRV(sv) != 0; |
3310 | } | |
463ee0b2 | 3311 | if (SvPOKp(sv)) { |
11343788 MB |
3312 | register XPV* Xpvtmp; |
3313 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
3314 | (*Xpvtmp->xpv_pv > '0' || | |
3315 | Xpvtmp->xpv_cur > 1 || | |
3316 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3317 | return 1; |
3318 | else | |
3319 | return 0; | |
3320 | } | |
3321 | else { | |
3322 | if (SvIOKp(sv)) | |
3323 | return SvIVX(sv) != 0; | |
3324 | else { | |
3325 | if (SvNOKp(sv)) | |
3326 | return SvNVX(sv) != 0.0; | |
3327 | else | |
3328 | return FALSE; | |
3329 | } | |
3330 | } | |
79072805 LW |
3331 | } |
3332 | ||
c461cf8f JH |
3333 | /* |
3334 | =for apidoc sv_utf8_upgrade | |
3335 | ||
3336 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3337 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3338 | Always sets the SvUTF8 flag to avoid future validity checks even |
3339 | if all the bytes have hibit clear. | |
c461cf8f | 3340 | |
13a6c0e0 JH |
3341 | This is not as a general purpose byte encoding to Unicode interface: |
3342 | use the Encode extension for that. | |
3343 | ||
8d6d96c1 HS |
3344 | =for apidoc sv_utf8_upgrade_flags |
3345 | ||
3346 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3347 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3348 | Always sets the SvUTF8 flag to avoid future validity checks even |
3349 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3350 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3351 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3352 | ||
13a6c0e0 JH |
3353 | This is not as a general purpose byte encoding to Unicode interface: |
3354 | use the Encode extension for that. | |
3355 | ||
8d6d96c1 HS |
3356 | =cut |
3357 | */ | |
3358 | ||
3359 | STRLEN | |
3360 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3361 | { | |
db42d148 | 3362 | U8 *s, *t, *e; |
511c2ff0 | 3363 | int hibit = 0; |
560a288e | 3364 | |
4411f3b6 NIS |
3365 | if (!sv) |
3366 | return 0; | |
3367 | ||
e0e62c2a NIS |
3368 | if (!SvPOK(sv)) { |
3369 | STRLEN len = 0; | |
8d6d96c1 | 3370 | (void) sv_2pv_flags(sv,&len, flags); |
e0e62c2a NIS |
3371 | if (!SvPOK(sv)) |
3372 | return len; | |
3373 | } | |
4411f3b6 NIS |
3374 | |
3375 | if (SvUTF8(sv)) | |
3376 | return SvCUR(sv); | |
560a288e | 3377 | |
765f542d NC |
3378 | if (SvIsCOW(sv)) { |
3379 | sv_force_normal_flags(sv, 0); | |
db42d148 NIS |
3380 | } |
3381 | ||
9f4817db | 3382 | if (PL_encoding) |
799ef3cb | 3383 | sv_recode_to_utf8(sv, PL_encoding); |
9f4817db | 3384 | else { /* Assume Latin-1/EBCDIC */ |
0a378802 JH |
3385 | /* This function could be much more efficient if we |
3386 | * had a FLAG in SVs to signal if there are any hibit | |
3387 | * chars in the PV. Given that there isn't such a flag | |
3388 | * make the loop as fast as possible. */ | |
3389 | s = (U8 *) SvPVX(sv); | |
3390 | e = (U8 *) SvEND(sv); | |
3391 | t = s; | |
3392 | while (t < e) { | |
3393 | U8 ch = *t++; | |
3394 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) | |
3395 | break; | |
3396 | } | |
3397 | if (hibit) { | |
3398 | STRLEN len; | |
ecdeb87c | 3399 | |
0a378802 JH |
3400 | len = SvCUR(sv) + 1; /* Plus the \0 */ |
3401 | SvPVX(sv) = (char*)bytes_to_utf8((U8*)s, &len); | |
3402 | SvCUR(sv) = len - 1; | |
3403 | if (SvLEN(sv) != 0) | |
3404 | Safefree(s); /* No longer using what was there before. */ | |
3405 | SvLEN(sv) = len; /* No longer know the real size. */ | |
3406 | } | |
9f4817db JH |
3407 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ |
3408 | SvUTF8_on(sv); | |
560a288e | 3409 | } |
4411f3b6 | 3410 | return SvCUR(sv); |
560a288e GS |
3411 | } |
3412 | ||
c461cf8f JH |
3413 | /* |
3414 | =for apidoc sv_utf8_downgrade | |
3415 | ||
3416 | Attempt to convert the PV of an SV from UTF8-encoded to byte encoding. | |
3417 | This may not be possible if the PV contains non-byte encoding characters; | |
3418 | if this is the case, either returns false or, if C<fail_ok> is not | |
3419 | true, croaks. | |
3420 | ||
13a6c0e0 JH |
3421 | This is not as a general purpose Unicode to byte encoding interface: |
3422 | use the Encode extension for that. | |
3423 | ||
c461cf8f JH |
3424 | =cut |
3425 | */ | |
3426 | ||
560a288e GS |
3427 | bool |
3428 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3429 | { | |
3430 | if (SvPOK(sv) && SvUTF8(sv)) { | |
fa301091 | 3431 | if (SvCUR(sv)) { |
03cfe0ae | 3432 | U8 *s; |
652088fc | 3433 | STRLEN len; |
fa301091 | 3434 | |
765f542d NC |
3435 | if (SvIsCOW(sv)) { |
3436 | sv_force_normal_flags(sv, 0); | |
3437 | } | |
03cfe0ae NIS |
3438 | s = (U8 *) SvPV(sv, len); |
3439 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3440 | if (fail_ok) |
3441 | return FALSE; | |
3442 | else { | |
3443 | if (PL_op) | |
3444 | Perl_croak(aTHX_ "Wide character in %s", | |
53e06cf0 | 3445 | OP_DESC(PL_op)); |
fa301091 JH |
3446 | else |
3447 | Perl_croak(aTHX_ "Wide character"); | |
3448 | } | |
4b3603a4 | 3449 | } |
fa301091 | 3450 | SvCUR(sv) = len; |
67e989fb | 3451 | } |
560a288e | 3452 | } |
ffebcc3e | 3453 | SvUTF8_off(sv); |
560a288e GS |
3454 | return TRUE; |
3455 | } | |
3456 | ||
c461cf8f JH |
3457 | /* |
3458 | =for apidoc sv_utf8_encode | |
3459 | ||
3460 | Convert the PV of an SV to UTF8-encoded, but then turn off the C<SvUTF8> | |
4411f3b6 NIS |
3461 | flag so that it looks like octets again. Used as a building block |
3462 | for encode_utf8 in Encode.xs | |
c461cf8f JH |
3463 | |
3464 | =cut | |
3465 | */ | |
3466 | ||
560a288e GS |
3467 | void |
3468 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3469 | { | |
4411f3b6 | 3470 | (void) sv_utf8_upgrade(sv); |
560a288e GS |
3471 | SvUTF8_off(sv); |
3472 | } | |
3473 | ||
4411f3b6 NIS |
3474 | /* |
3475 | =for apidoc sv_utf8_decode | |
3476 | ||
3477 | Convert the octets in the PV from UTF-8 to chars. Scan for validity and then | |
645c22ef | 3478 | turn off SvUTF8 if needed so that we see characters. Used as a building block |
4411f3b6 NIS |
3479 | for decode_utf8 in Encode.xs |
3480 | ||
3481 | =cut | |
3482 | */ | |
3483 | ||
560a288e GS |
3484 | bool |
3485 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3486 | { | |
3487 | if (SvPOK(sv)) { | |
63cd0674 NIS |
3488 | U8 *c; |
3489 | U8 *e; | |
9cbac4c7 | 3490 | |
645c22ef DM |
3491 | /* The octets may have got themselves encoded - get them back as |
3492 | * bytes | |
3493 | */ | |
3494 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3495 | return FALSE; |
3496 | ||
3497 | /* it is actually just a matter of turning the utf8 flag on, but | |
3498 | * we want to make sure everything inside is valid utf8 first. | |
3499 | */ | |
63cd0674 NIS |
3500 | c = (U8 *) SvPVX(sv); |
3501 | if (!is_utf8_string(c, SvCUR(sv)+1)) | |
67e989fb | 3502 | return FALSE; |
63cd0674 | 3503 | e = (U8 *) SvEND(sv); |
511c2ff0 | 3504 | while (c < e) { |
c4d5f83a NIS |
3505 | U8 ch = *c++; |
3506 | if (!UTF8_IS_INVARIANT(ch)) { | |
67e989fb JH |
3507 | SvUTF8_on(sv); |
3508 | break; | |
3509 | } | |
560a288e | 3510 | } |
560a288e GS |
3511 | } |
3512 | return TRUE; | |
3513 | } | |
3514 | ||
954c1994 GS |
3515 | /* |
3516 | =for apidoc sv_setsv | |
3517 | ||
645c22ef DM |
3518 | Copies the contents of the source SV C<ssv> into the destination SV |
3519 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3520 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3521 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3522 | content of the destination. | |
3523 | ||
3524 | You probably want to use one of the assortment of wrappers, such as | |
3525 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3526 | C<SvSetMagicSV_nosteal>. | |
3527 | ||
8d6d96c1 HS |
3528 | =for apidoc sv_setsv_flags |
3529 | ||
645c22ef DM |
3530 | Copies the contents of the source SV C<ssv> into the destination SV |
3531 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3532 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3533 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3534 | content of the destination. | |
3535 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
3536 | C<ssv> if appropriate, else not. C<sv_setsv> and C<sv_setsv_nomg> are | |
3537 | implemented in terms of this function. | |
3538 | ||
3539 | You probably want to use one of the assortment of wrappers, such as | |
3540 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3541 | C<SvSetMagicSV_nosteal>. | |
3542 | ||
3543 | This is the primary function for copying scalars, and most other | |
3544 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3545 | |
3546 | =cut | |
3547 | */ | |
3548 | ||
3549 | void | |
3550 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3551 | { | |
8990e307 LW |
3552 | register U32 sflags; |
3553 | register int dtype; | |
3554 | register int stype; | |
463ee0b2 | 3555 | |
79072805 LW |
3556 | if (sstr == dstr) |
3557 | return; | |
765f542d | 3558 | SV_CHECK_THINKFIRST_COW_DROP(dstr); |
79072805 | 3559 | if (!sstr) |
3280af22 | 3560 | sstr = &PL_sv_undef; |
8990e307 LW |
3561 | stype = SvTYPE(sstr); |
3562 | dtype = SvTYPE(dstr); | |
79072805 | 3563 | |
a0d0e21e | 3564 | SvAMAGIC_off(dstr); |
9e7bc3e8 | 3565 | |
463ee0b2 | 3566 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3567 | |
8990e307 | 3568 | switch (stype) { |
79072805 | 3569 | case SVt_NULL: |
aece5585 | 3570 | undef_sstr: |
20408e3c GS |
3571 | if (dtype != SVt_PVGV) { |
3572 | (void)SvOK_off(dstr); | |
3573 | return; | |
3574 | } | |
3575 | break; | |
463ee0b2 | 3576 | case SVt_IV: |
aece5585 GA |
3577 | if (SvIOK(sstr)) { |
3578 | switch (dtype) { | |
3579 | case SVt_NULL: | |
8990e307 | 3580 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3581 | break; |
3582 | case SVt_NV: | |
8990e307 | 3583 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3584 | break; |
3585 | case SVt_RV: | |
3586 | case SVt_PV: | |
a0d0e21e | 3587 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3588 | break; |
3589 | } | |
3590 | (void)SvIOK_only(dstr); | |
3591 | SvIVX(dstr) = SvIVX(sstr); | |
25da4f38 IZ |
3592 | if (SvIsUV(sstr)) |
3593 | SvIsUV_on(dstr); | |
27c9684d AP |
3594 | if (SvTAINTED(sstr)) |
3595 | SvTAINT(dstr); | |
aece5585 | 3596 | return; |
8990e307 | 3597 | } |
aece5585 GA |
3598 | goto undef_sstr; |
3599 | ||
463ee0b2 | 3600 | case SVt_NV: |
aece5585 GA |
3601 | if (SvNOK(sstr)) { |
3602 | switch (dtype) { | |
3603 | case SVt_NULL: | |
3604 | case SVt_IV: | |
8990e307 | 3605 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3606 | break; |
3607 | case SVt_RV: | |
3608 | case SVt_PV: | |
3609 | case SVt_PVIV: | |
a0d0e21e | 3610 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3611 | break; |
3612 | } | |
3613 | SvNVX(dstr) = SvNVX(sstr); | |
3614 | (void)SvNOK_only(dstr); | |
27c9684d AP |
3615 | if (SvTAINTED(sstr)) |
3616 | SvTAINT(dstr); | |
aece5585 | 3617 | return; |
8990e307 | 3618 | } |
aece5585 GA |
3619 | goto undef_sstr; |
3620 | ||
ed6116ce | 3621 | case SVt_RV: |
8990e307 | 3622 | if (dtype < SVt_RV) |
ed6116ce | 3623 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3624 | else if (dtype == SVt_PVGV && |
3625 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { | |
3626 | sstr = SvRV(sstr); | |
a5f75d66 | 3627 | if (sstr == dstr) { |
1d7c1841 GS |
3628 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3629 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3630 | { | |
a5f75d66 | 3631 | GvIMPORTED_on(dstr); |
1d7c1841 | 3632 | } |
a5f75d66 AD |
3633 | GvMULTI_on(dstr); |
3634 | return; | |
3635 | } | |
c07a80fd | 3636 | goto glob_assign; |
3637 | } | |
ed6116ce | 3638 | break; |
463ee0b2 | 3639 | case SVt_PV: |
fc36a67e | 3640 | case SVt_PVFM: |
8990e307 | 3641 | if (dtype < SVt_PV) |
463ee0b2 | 3642 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3643 | break; |
3644 | case SVt_PVIV: | |
8990e307 | 3645 | if (dtype < SVt_PVIV) |
463ee0b2 | 3646 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3647 | break; |
3648 | case SVt_PVNV: | |
8990e307 | 3649 | if (dtype < SVt_PVNV) |
463ee0b2 | 3650 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3651 | break; |
4633a7c4 LW |
3652 | case SVt_PVAV: |
3653 | case SVt_PVHV: | |
3654 | case SVt_PVCV: | |
4633a7c4 | 3655 | case SVt_PVIO: |
533c011a | 3656 | if (PL_op) |
cea2e8a9 | 3657 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
53e06cf0 | 3658 | OP_NAME(PL_op)); |
4633a7c4 | 3659 | else |
cea2e8a9 | 3660 | Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); |
4633a7c4 LW |
3661 | break; |
3662 | ||
79072805 | 3663 | case SVt_PVGV: |
8990e307 | 3664 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3665 | glob_assign: |
a5f75d66 | 3666 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
3667 | char *name = GvNAME(sstr); |
3668 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 3669 | sv_upgrade(dstr, SVt_PVGV); |
14befaf4 | 3670 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 3671 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
3672 | GvNAME(dstr) = savepvn(name, len); |
3673 | GvNAMELEN(dstr) = len; | |
3674 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3675 | } | |
7bac28a0 | 3676 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3677 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3678 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3679 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3680 | GvNAME(dstr)); |
5bd07a3d | 3681 | |
7fb37951 AMS |
3682 | #ifdef GV_UNIQUE_CHECK |
3683 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3684 | Perl_croak(aTHX_ PL_no_modify); |
3685 | } | |
3686 | #endif | |
3687 | ||
a0d0e21e | 3688 | (void)SvOK_off(dstr); |
a5f75d66 | 3689 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3690 | gp_free((GV*)dstr); |
79072805 | 3691 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3692 | if (SvTAINTED(sstr)) |
3693 | SvTAINT(dstr); | |
1d7c1841 GS |
3694 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3695 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3696 | { | |
a5f75d66 | 3697 | GvIMPORTED_on(dstr); |
1d7c1841 | 3698 | } |
a5f75d66 | 3699 | GvMULTI_on(dstr); |
79072805 LW |
3700 | return; |
3701 | } | |
3702 | /* FALL THROUGH */ | |
3703 | ||
3704 | default: | |
8d6d96c1 | 3705 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab | 3706 | mg_get(sstr); |
eb160463 | 3707 | if ((int)SvTYPE(sstr) != stype) { |
973f89ab CS |
3708 | stype = SvTYPE(sstr); |
3709 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3710 | goto glob_assign; | |
3711 | } | |
3712 | } | |
ded42b9f | 3713 | if (stype == SVt_PVLV) |
6fc92669 | 3714 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3715 | else |
eb160463 | 3716 | (void)SvUPGRADE(dstr, (U32)stype); |
79072805 LW |
3717 | } |
3718 | ||
8990e307 LW |
3719 | sflags = SvFLAGS(sstr); |
3720 | ||
3721 | if (sflags & SVf_ROK) { | |
3722 | if (dtype >= SVt_PV) { | |
3723 | if (dtype == SVt_PVGV) { | |
3724 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3725 | SV *dref = 0; | |
a5f75d66 | 3726 | int intro = GvINTRO(dstr); |
a0d0e21e | 3727 | |
7fb37951 AMS |
3728 | #ifdef GV_UNIQUE_CHECK |
3729 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3730 | Perl_croak(aTHX_ PL_no_modify); |
3731 | } | |
3732 | #endif | |
3733 | ||
a0d0e21e | 3734 | if (intro) { |
a5f75d66 | 3735 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3736 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3737 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3738 | } |
a5f75d66 | 3739 | GvMULTI_on(dstr); |
8990e307 LW |
3740 | switch (SvTYPE(sref)) { |
3741 | case SVt_PVAV: | |
a0d0e21e LW |
3742 | if (intro) |
3743 | SAVESPTR(GvAV(dstr)); | |
3744 | else | |
3745 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3746 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3747 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3748 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3749 | { | |
a5f75d66 | 3750 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3751 | } |
8990e307 LW |
3752 | break; |
3753 | case SVt_PVHV: | |
a0d0e21e LW |
3754 | if (intro) |
3755 | SAVESPTR(GvHV(dstr)); | |
3756 | else | |
3757 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3758 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3759 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3760 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3761 | { | |
a5f75d66 | 3762 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3763 | } |
8990e307 LW |
3764 | break; |
3765 | case SVt_PVCV: | |
8ebc5c01 | 3766 | if (intro) { |
3767 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3768 | SvREFCNT_dec(GvCV(dstr)); | |
3769 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3770 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3771 | PL_sub_generation++; |
8ebc5c01 | 3772 | } |
a0d0e21e | 3773 | SAVESPTR(GvCV(dstr)); |
8ebc5c01 | 3774 | } |
68dc0745 | 3775 | else |
3776 | dref = (SV*)GvCV(dstr); | |
3777 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3778 | CV* cv = GvCV(dstr); |
4633a7c4 | 3779 | if (cv) { |
68dc0745 | 3780 | if (!GvCVGEN((GV*)dstr) && |
3781 | (CvROOT(cv) || CvXSUB(cv))) | |
3782 | { | |
7bac28a0 | 3783 | /* ahem, death to those who redefine |
3784 | * active sort subs */ | |
3280af22 NIS |
3785 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
3786 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 3787 | Perl_croak(aTHX_ |
7bac28a0 | 3788 | "Can't redefine active sort subroutine %s", |
3789 | GvENAME((GV*)dstr)); | |
beab0874 JT |
3790 | /* Redefining a sub - warning is mandatory if |
3791 | it was a const and its value changed. */ | |
3792 | if (ckWARN(WARN_REDEFINE) | |
3793 | || (CvCONST(cv) | |
3794 | && (!CvCONST((CV*)sref) | |
3795 | || sv_cmp(cv_const_sv(cv), | |
3796 | cv_const_sv((CV*)sref))))) | |
3797 | { | |
9014280d | 3798 | Perl_warner(aTHX_ packWARN(WARN_REDEFINE), |
beab0874 | 3799 | CvCONST(cv) |
910764e6 RGS |
3800 | ? "Constant subroutine %s::%s redefined" |
3801 | : "Subroutine %s::%s redefined", | |
3802 | HvNAME(GvSTASH((GV*)dstr)), | |
beab0874 JT |
3803 | GvENAME((GV*)dstr)); |
3804 | } | |
9607fc9c | 3805 | } |
fb24441d RGS |
3806 | if (!intro) |
3807 | cv_ckproto(cv, (GV*)dstr, | |
3808 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 3809 | } |
a5f75d66 | 3810 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 3811 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 3812 | GvASSUMECV_on(dstr); |
3280af22 | 3813 | PL_sub_generation++; |
a5f75d66 | 3814 | } |
39bac7f7 | 3815 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
3816 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3817 | { | |
a5f75d66 | 3818 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 3819 | } |
8990e307 | 3820 | break; |
91bba347 LW |
3821 | case SVt_PVIO: |
3822 | if (intro) | |
3823 | SAVESPTR(GvIOp(dstr)); | |
3824 | else | |
3825 | dref = (SV*)GvIOp(dstr); | |
3826 | GvIOp(dstr) = (IO*)sref; | |
3827 | break; | |
f4d13ee9 JH |
3828 | case SVt_PVFM: |
3829 | if (intro) | |
3830 | SAVESPTR(GvFORM(dstr)); | |
3831 | else | |
3832 | dref = (SV*)GvFORM(dstr); | |
3833 | GvFORM(dstr) = (CV*)sref; | |
3834 | break; | |
8990e307 | 3835 | default: |
a0d0e21e LW |
3836 | if (intro) |
3837 | SAVESPTR(GvSV(dstr)); | |
3838 | else | |
3839 | dref = (SV*)GvSV(dstr); | |
8990e307 | 3840 | GvSV(dstr) = sref; |
39bac7f7 | 3841 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
3842 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3843 | { | |
a5f75d66 | 3844 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 3845 | } |
8990e307 LW |
3846 | break; |
3847 | } | |
3848 | if (dref) | |
3849 | SvREFCNT_dec(dref); | |
a0d0e21e LW |
3850 | if (intro) |
3851 | SAVEFREESV(sref); | |
27c9684d AP |
3852 | if (SvTAINTED(sstr)) |
3853 | SvTAINT(dstr); | |
8990e307 LW |
3854 | return; |
3855 | } | |
a0d0e21e | 3856 | if (SvPVX(dstr)) { |
760ac839 | 3857 | (void)SvOOK_off(dstr); /* backoff */ |
50483b2c JD |
3858 | if (SvLEN(dstr)) |
3859 | Safefree(SvPVX(dstr)); | |
a0d0e21e LW |
3860 | SvLEN(dstr)=SvCUR(dstr)=0; |
3861 | } | |
8990e307 | 3862 | } |
a0d0e21e | 3863 | (void)SvOK_off(dstr); |
8990e307 | 3864 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 3865 | SvROK_on(dstr); |
8990e307 | 3866 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3867 | SvNOKp_on(dstr); |
3868 | /* Only set the public OK flag if the source has public OK. */ | |
3869 | if (sflags & SVf_NOK) | |
3870 | SvFLAGS(dstr) |= SVf_NOK; | |
ed6116ce LW |
3871 | SvNVX(dstr) = SvNVX(sstr); |
3872 | } | |
8990e307 | 3873 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3874 | (void)SvIOKp_on(dstr); |
3875 | if (sflags & SVf_IOK) | |
3876 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3877 | if (sflags & SVf_IVisUV) |
25da4f38 | 3878 | SvIsUV_on(dstr); |
3332b3c1 | 3879 | SvIVX(dstr) = SvIVX(sstr); |
ed6116ce | 3880 | } |
a0d0e21e LW |
3881 | if (SvAMAGIC(sstr)) { |
3882 | SvAMAGIC_on(dstr); | |
3883 | } | |
ed6116ce | 3884 | } |
8990e307 | 3885 | else if (sflags & SVp_POK) { |
765f542d | 3886 | bool isSwipe = 0; |
79072805 LW |
3887 | |
3888 | /* | |
3889 | * Check to see if we can just swipe the string. If so, it's a | |
3890 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
3891 | * It might even be a win on short strings if SvPVX(dstr) |
3892 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
3893 | */ |
3894 | ||
765f542d NC |
3895 | if ( |
3896 | #ifdef PERL_COPY_ON_WRITE | |
3897 | (sflags & (SVf_FAKE | SVf_READONLY)) != (SVf_FAKE | SVf_READONLY) | |
3898 | && | |
3899 | #endif | |
3900 | !(isSwipe = | |
3901 | (sflags & SVs_TEMP) && /* slated for free anyway? */ | |
3902 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ | |
3903 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ | |
3904 | SvLEN(sstr) && /* and really is a string */ | |
645c22ef | 3905 | /* and won't be needed again, potentially */ |
765f542d NC |
3906 | !(PL_op && PL_op->op_type == OP_AASSIGN)) |
3907 | #ifdef PERL_COPY_ON_WRITE | |
3908 | && !((sflags & CAN_COW_MASK) == CAN_COW_FLAGS | |
3909 | && SvTYPE(sstr) >= SVt_PVIV) | |
3910 | #endif | |
3911 | ) { | |
3912 | /* Failed the swipe test, and it's not a shared hash key either. | |
3913 | Have to copy the string. */ | |
3914 | STRLEN len = SvCUR(sstr); | |
3915 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ | |
3916 | Move(SvPVX(sstr),SvPVX(dstr),len,char); | |
3917 | SvCUR_set(dstr, len); | |
3918 | *SvEND(dstr) = '\0'; | |
3919 | (void)SvPOK_only(dstr); | |
3920 | } else { | |
3921 | /* If PERL_COPY_ON_WRITE is not defined, then isSwipe will always | |
3922 | be true in here. */ | |
3923 | #ifdef PERL_COPY_ON_WRITE | |
3924 | /* Either it's a shared hash key, or it's suitable for | |
3925 | copy-on-write or we can swipe the string. */ | |
46187eeb NC |
3926 | if (DEBUG_C_TEST) { |
3927 | PerlIO_printf(Perl_debug_log, | |
3928 | "Copy on write: sstr --> dstr\n"); | |
e419cbc5 NC |
3929 | sv_dump(sstr); |
3930 | sv_dump(dstr); | |
46187eeb | 3931 | } |
765f542d NC |
3932 | if (!isSwipe) { |
3933 | /* I believe I should acquire a global SV mutex if | |
3934 | it's a COW sv (not a shared hash key) to stop | |
3935 | it going un copy-on-write. | |
3936 | If the source SV has gone un copy on write between up there | |
3937 | and down here, then (assert() that) it is of the correct | |
3938 | form to make it copy on write again */ | |
3939 | if ((sflags & (SVf_FAKE | SVf_READONLY)) | |
3940 | != (SVf_FAKE | SVf_READONLY)) { | |
3941 | SvREADONLY_on(sstr); | |
3942 | SvFAKE_on(sstr); | |
3943 | /* Make the source SV into a loop of 1. | |
3944 | (about to become 2) */ | |
3945 | SV_COW_NEXT_SV(sstr) = sstr; | |
3946 | } | |
3947 | } | |
3948 | #endif | |
3949 | /* Initial code is common. */ | |
adbc6bb1 | 3950 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
3951 | if (SvOOK(dstr)) { |
3952 | SvFLAGS(dstr) &= ~SVf_OOK; | |
3953 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
3954 | } | |
50483b2c | 3955 | else if (SvLEN(dstr)) |
a5f75d66 | 3956 | Safefree(SvPVX(dstr)); |
79072805 | 3957 | } |
a5f75d66 | 3958 | (void)SvPOK_only(dstr); |
765f542d NC |
3959 | |
3960 | #ifdef PERL_COPY_ON_WRITE | |
3961 | if (!isSwipe) { | |
3962 | /* making another shared SV. */ | |
3963 | STRLEN cur = SvCUR(sstr); | |
3964 | STRLEN len = SvLEN(sstr); | |
3965 | if (len) { | |
3966 | /* SvIsCOW_normal */ | |
3967 | /* splice us in between source and next-after-source. */ | |
3968 | SV_COW_NEXT_SV(dstr) = SV_COW_NEXT_SV(sstr); | |
3969 | SV_COW_NEXT_SV(sstr) = dstr; | |
3970 | SvPV_set(dstr, SvPVX(sstr)); | |
3971 | } else { | |
3972 | /* SvIsCOW_shared_hash */ | |
3973 | UV hash = SvUVX(sstr); | |
46187eeb NC |
3974 | DEBUG_C(PerlIO_printf(Perl_debug_log, |
3975 | "Copy on write: Sharing hash\n")); | |
765f542d NC |
3976 | SvPV_set(dstr, |
3977 | sharepvn(SvPVX(sstr), | |
3978 | (sflags & SVf_UTF8?-cur:cur), hash)); | |
3979 | SvUVX(dstr) = hash; | |
3980 | } | |
3981 | SvLEN(dstr) = len; | |
3982 | SvCUR(dstr) = cur; | |
3983 | SvREADONLY_on(dstr); | |
3984 | SvFAKE_on(dstr); | |
3985 | /* Relesase a global SV mutex. */ | |
3986 | } | |
3987 | else | |
3988 | #endif | |
3989 | { /* Passes the swipe test. */ | |
3990 | SvPV_set(dstr, SvPVX(sstr)); | |
3991 | SvLEN_set(dstr, SvLEN(sstr)); | |
3992 | SvCUR_set(dstr, SvCUR(sstr)); | |
3993 | ||
3994 | SvTEMP_off(dstr); | |
3995 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ | |
3996 | SvPV_set(sstr, Nullch); | |
3997 | SvLEN_set(sstr, 0); | |
3998 | SvCUR_set(sstr, 0); | |
3999 | SvTEMP_off(sstr); | |
4000 | } | |
4001 | } | |
9aa983d2 | 4002 | if (sflags & SVf_UTF8) |
a7cb1f99 | 4003 | SvUTF8_on(dstr); |
79072805 | 4004 | /*SUPPRESS 560*/ |
8990e307 | 4005 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
4006 | SvNOKp_on(dstr); |
4007 | if (sflags & SVf_NOK) | |
4008 | SvFLAGS(dstr) |= SVf_NOK; | |
463ee0b2 | 4009 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 4010 | } |
8990e307 | 4011 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
4012 | (void)SvIOKp_on(dstr); |
4013 | if (sflags & SVf_IOK) | |
4014 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 4015 | if (sflags & SVf_IVisUV) |
25da4f38 | 4016 | SvIsUV_on(dstr); |
463ee0b2 | 4017 | SvIVX(dstr) = SvIVX(sstr); |
79072805 | 4018 | } |
92f0c265 JP |
4019 | if (SvVOK(sstr)) { |
4020 | MAGIC *mg = SvMAGIC(sstr); | |
4021 | sv_magicext(dstr, NULL, PERL_MAGIC_vstring, NULL, | |
4022 | mg->mg_ptr, mg->mg_len); | |
439cb1c4 | 4023 | SvRMAGICAL_on(dstr); |
92f0c265 | 4024 | } |
79072805 | 4025 | } |
8990e307 | 4026 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
4027 | if (sflags & SVf_IOK) |
4028 | (void)SvIOK_only(dstr); | |
4029 | else { | |
9cbac4c7 DM |
4030 | (void)SvOK_off(dstr); |
4031 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
4032 | } |
4033 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 4034 | if (sflags & SVf_IVisUV) |
25da4f38 | 4035 | SvIsUV_on(dstr); |
3332b3c1 JH |
4036 | SvIVX(dstr) = SvIVX(sstr); |
4037 | if (sflags & SVp_NOK) { | |
4038 | if (sflags & SVf_NOK) | |
4039 | (void)SvNOK_on(dstr); | |
4040 | else | |
4041 | (void)SvNOKp_on(dstr); | |
4042 | SvNVX(dstr) = SvNVX(sstr); | |
4043 | } | |
4044 | } | |
4045 | else if (sflags & SVp_NOK) { | |
4046 | if (sflags & SVf_NOK) | |
4047 | (void)SvNOK_only(dstr); | |
4048 | else { | |
9cbac4c7 | 4049 | (void)SvOK_off(dstr); |
3332b3c1 JH |
4050 | SvNOKp_on(dstr); |
4051 | } | |
4052 | SvNVX(dstr) = SvNVX(sstr); | |
79072805 LW |
4053 | } |
4054 | else { | |
20408e3c | 4055 | if (dtype == SVt_PVGV) { |
e476b1b5 | 4056 | if (ckWARN(WARN_MISC)) |
9014280d | 4057 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Undefined value assigned to typeglob"); |
20408e3c GS |
4058 | } |
4059 | else | |
4060 | (void)SvOK_off(dstr); | |
a0d0e21e | 4061 | } |
27c9684d AP |
4062 | if (SvTAINTED(sstr)) |
4063 | SvTAINT(dstr); | |
79072805 LW |
4064 | } |
4065 | ||
954c1994 GS |
4066 | /* |
4067 | =for apidoc sv_setsv_mg | |
4068 | ||
4069 | Like C<sv_setsv>, but also handles 'set' magic. | |
4070 | ||
4071 | =cut | |
4072 | */ | |
4073 | ||
79072805 | 4074 | void |
864dbfa3 | 4075 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
4076 | { |
4077 | sv_setsv(dstr,sstr); | |
4078 | SvSETMAGIC(dstr); | |
4079 | } | |
4080 | ||
954c1994 GS |
4081 | /* |
4082 | =for apidoc sv_setpvn | |
4083 | ||
4084 | Copies a string into an SV. The C<len> parameter indicates the number of | |
4085 | bytes to be copied. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
4086 | ||
4087 | =cut | |
4088 | */ | |
4089 | ||
ef50df4b | 4090 | void |
864dbfa3 | 4091 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 4092 | { |
c6f8c383 | 4093 | register char *dptr; |
22c522df | 4094 | |
765f542d | 4095 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 | 4096 | if (!ptr) { |
a0d0e21e | 4097 | (void)SvOK_off(sv); |
463ee0b2 LW |
4098 | return; |
4099 | } | |
22c522df JH |
4100 | else { |
4101 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
4102 | IV iv = len; | |
9c5ffd7c JH |
4103 | if (iv < 0) |
4104 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 4105 | } |
6fc92669 | 4106 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4107 | |
79072805 | 4108 | SvGROW(sv, len + 1); |
c6f8c383 GA |
4109 | dptr = SvPVX(sv); |
4110 | Move(ptr,dptr,len,char); | |
4111 | dptr[len] = '\0'; | |
79072805 | 4112 | SvCUR_set(sv, len); |
1aa99e6b | 4113 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4114 | SvTAINT(sv); |
79072805 LW |
4115 | } |
4116 | ||
954c1994 GS |
4117 | /* |
4118 | =for apidoc sv_setpvn_mg | |
4119 | ||
4120 | Like C<sv_setpvn>, but also handles 'set' magic. | |
4121 | ||
4122 | =cut | |
4123 | */ | |
4124 | ||
79072805 | 4125 | void |
864dbfa3 | 4126 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4127 | { |
4128 | sv_setpvn(sv,ptr,len); | |
4129 | SvSETMAGIC(sv); | |
4130 | } | |
4131 | ||
954c1994 GS |
4132 | /* |
4133 | =for apidoc sv_setpv | |
4134 | ||
4135 | Copies a string into an SV. The string must be null-terminated. Does not | |
4136 | handle 'set' magic. See C<sv_setpv_mg>. | |
4137 | ||
4138 | =cut | |
4139 | */ | |
4140 | ||
ef50df4b | 4141 | void |
864dbfa3 | 4142 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4143 | { |
4144 | register STRLEN len; | |
4145 | ||
765f542d | 4146 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 | 4147 | if (!ptr) { |
a0d0e21e | 4148 | (void)SvOK_off(sv); |
463ee0b2 LW |
4149 | return; |
4150 | } | |
79072805 | 4151 | len = strlen(ptr); |
6fc92669 | 4152 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4153 | |
79072805 | 4154 | SvGROW(sv, len + 1); |
463ee0b2 | 4155 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4156 | SvCUR_set(sv, len); |
1aa99e6b | 4157 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4158 | SvTAINT(sv); |
4159 | } | |
4160 | ||
954c1994 GS |
4161 | /* |
4162 | =for apidoc sv_setpv_mg | |
4163 | ||
4164 | Like C<sv_setpv>, but also handles 'set' magic. | |
4165 | ||
4166 | =cut | |
4167 | */ | |
4168 | ||
463ee0b2 | 4169 | void |
864dbfa3 | 4170 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4171 | { |
4172 | sv_setpv(sv,ptr); | |
4173 | SvSETMAGIC(sv); | |
4174 | } | |
4175 | ||
954c1994 GS |
4176 | /* |
4177 | =for apidoc sv_usepvn | |
4178 | ||
4179 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4180 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4181 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4182 | string length, C<len>, must be supplied. This function will realloc the | |
4183 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4184 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4185 | See C<sv_usepvn_mg>. | |
4186 | ||
4187 | =cut | |
4188 | */ | |
4189 | ||
ef50df4b | 4190 | void |
864dbfa3 | 4191 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4192 | { |
765f542d | 4193 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
c6f8c383 | 4194 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4195 | if (!ptr) { |
a0d0e21e | 4196 | (void)SvOK_off(sv); |
463ee0b2 LW |
4197 | return; |
4198 | } | |
a0ed51b3 | 4199 | (void)SvOOK_off(sv); |
50483b2c | 4200 | if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 LW |
4201 | Safefree(SvPVX(sv)); |
4202 | Renew(ptr, len+1, char); | |
4203 | SvPVX(sv) = ptr; | |
4204 | SvCUR_set(sv, len); | |
4205 | SvLEN_set(sv, len+1); | |
4206 | *SvEND(sv) = '\0'; | |
1aa99e6b | 4207 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4208 | SvTAINT(sv); |
79072805 LW |
4209 | } |
4210 | ||
954c1994 GS |
4211 | /* |
4212 | =for apidoc sv_usepvn_mg | |
4213 | ||
4214 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4215 | ||
4216 | =cut | |
4217 | */ | |
4218 | ||
ef50df4b | 4219 | void |
864dbfa3 | 4220 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4221 | { |
51c1089b | 4222 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4223 | SvSETMAGIC(sv); |
4224 | } | |
4225 | ||
765f542d NC |
4226 | #ifdef PERL_COPY_ON_WRITE |
4227 | /* Need to do this *after* making the SV normal, as we need the buffer | |
4228 | pointer to remain valid until after we've copied it. If we let go too early, | |
4229 | another thread could invalidate it by unsharing last of the same hash key | |
4230 | (which it can do by means other than releasing copy-on-write Svs) | |
4231 | or by changing the other copy-on-write SVs in the loop. */ | |
4232 | STATIC void | |
4233 | S_sv_release_COW(pTHX_ register SV *sv, char *pvx, STRLEN cur, STRLEN len, | |
4234 | U32 hash, SV *after) | |
4235 | { | |
4236 | if (len) { /* this SV was SvIsCOW_normal(sv) */ | |
4237 | /* we need to find the SV pointing to us. */ | |
4238 | SV *current = SV_COW_NEXT_SV(after); | |
4239 | ||
4240 | if (current == sv) { | |
4241 | /* The SV we point to points back to us (there were only two of us | |
4242 | in the loop.) | |
4243 | Hence other SV is no longer copy on write either. */ | |
4244 | SvFAKE_off(after); | |
4245 | SvREADONLY_off(after); | |
4246 | } else { | |
4247 | /* We need to follow the pointers around the loop. */ | |
4248 | SV *next; | |
4249 | while ((next = SV_COW_NEXT_SV(current)) != sv) { | |
4250 | assert (next); | |
4251 | current = next; | |
4252 | /* don't loop forever if the structure is bust, and we have | |
4253 | a pointer into a closed loop. */ | |
4254 | assert (current != after); | |
e419cbc5 | 4255 | assert (SvPVX(current) == pvx); |
765f542d NC |
4256 | } |
4257 | /* Make the SV before us point to the SV after us. */ | |
4258 | SV_COW_NEXT_SV(current) = after; | |
4259 | } | |
4260 | } else { | |
4261 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)cur : cur, hash); | |
4262 | } | |
4263 | } | |
4264 | ||
4265 | int | |
4266 | Perl_sv_release_IVX(pTHX_ register SV *sv) | |
4267 | { | |
4268 | if (SvIsCOW(sv)) | |
4269 | sv_force_normal_flags(sv, 0); | |
4270 | return SvOOK_off(sv); | |
4271 | } | |
4272 | #endif | |
645c22ef DM |
4273 | /* |
4274 | =for apidoc sv_force_normal_flags | |
4275 | ||
4276 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4277 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
765f542d NC |
4278 | an xpvmg; if we're a copy-on-write scalar, this is the on-write time when |
4279 | we do the copy, and is also used locally. If C<SV_COW_DROP_PV> is set | |
4280 | then a copy-on-write scalar drops its PV buffer (if any) and becomes | |
4281 | SvPOK_off rather than making a copy. (Used where this scalar is about to be | |
4282 | set to some other value. In addtion, the C<flags> parameter gets passed to | |
4283 | C<sv_unref_flags()> when unrefing. C<sv_force_normal> calls this function | |
4284 | with flags set to 0. | |
645c22ef DM |
4285 | |
4286 | =cut | |
4287 | */ | |
4288 | ||
6fc92669 | 4289 | void |
840a7b70 | 4290 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4291 | { |
765f542d NC |
4292 | #ifdef PERL_COPY_ON_WRITE |
4293 | if (SvREADONLY(sv)) { | |
4294 | /* At this point I believe I should acquire a global SV mutex. */ | |
4295 | if (SvFAKE(sv)) { | |
4296 | char *pvx = SvPVX(sv); | |
4297 | STRLEN len = SvLEN(sv); | |
4298 | STRLEN cur = SvCUR(sv); | |
4299 | U32 hash = SvUVX(sv); | |
4300 | SV *next = SV_COW_NEXT_SV(sv); /* next COW sv in the loop. */ | |
46187eeb NC |
4301 | if (DEBUG_C_TEST) { |
4302 | PerlIO_printf(Perl_debug_log, | |
4303 | "Copy on write: Force normal %ld\n", | |
4304 | (long) flags); | |
e419cbc5 | 4305 | sv_dump(sv); |
46187eeb | 4306 | } |
765f542d NC |
4307 | SvFAKE_off(sv); |
4308 | SvREADONLY_off(sv); | |
4309 | /* This SV doesn't own the buffer, so need to New() a new one: */ | |
4310 | SvPVX(sv) = 0; | |
4311 | SvLEN(sv) = 0; | |
4312 | if (flags & SV_COW_DROP_PV) { | |
4313 | /* OK, so we don't need to copy our buffer. */ | |
4314 | SvPOK_off(sv); | |
4315 | } else { | |
4316 | SvGROW(sv, cur + 1); | |
4317 | Move(pvx,SvPVX(sv),cur,char); | |
4318 | SvCUR(sv) = cur; | |
4319 | *SvEND(sv) = '\0'; | |
4320 | } | |
e419cbc5 | 4321 | sv_release_COW(sv, pvx, cur, len, hash, next); |
46187eeb | 4322 | if (DEBUG_C_TEST) { |
e419cbc5 | 4323 | sv_dump(sv); |
46187eeb | 4324 | } |
765f542d NC |
4325 | } |
4326 | else if (PL_curcop != &PL_compiling) | |
4327 | Perl_croak(aTHX_ PL_no_modify); | |
4328 | /* At this point I believe that I can drop the global SV mutex. */ | |
4329 | } | |
4330 | #else | |
2213622d | 4331 | if (SvREADONLY(sv)) { |
1c846c1f NIS |
4332 | if (SvFAKE(sv)) { |
4333 | char *pvx = SvPVX(sv); | |
4334 | STRLEN len = SvCUR(sv); | |
4335 | U32 hash = SvUVX(sv); | |
4336 | SvGROW(sv, len + 1); | |
4337 | Move(pvx,SvPVX(sv),len,char); | |
4338 | *SvEND(sv) = '\0'; | |
4339 | SvFAKE_off(sv); | |
4340 | SvREADONLY_off(sv); | |
25716404 | 4341 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)len : len, hash); |
1c846c1f NIS |
4342 | } |
4343 | else if (PL_curcop != &PL_compiling) | |
cea2e8a9 | 4344 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4345 | } |
765f542d | 4346 | #endif |
2213622d | 4347 | if (SvROK(sv)) |
840a7b70 | 4348 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4349 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4350 | sv_unglob(sv); | |
0f15f207 | 4351 | } |
1c846c1f | 4352 | |
645c22ef DM |
4353 | /* |
4354 | =for apidoc sv_force_normal | |
4355 | ||
4356 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4357 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4358 | an xpvmg. See also C<sv_force_normal_flags>. | |
4359 | ||
4360 | =cut | |
4361 | */ | |
4362 | ||
840a7b70 IZ |
4363 | void |
4364 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4365 | { | |
4366 | sv_force_normal_flags(sv, 0); | |
4367 | } | |
4368 | ||
954c1994 GS |
4369 | /* |
4370 | =for apidoc sv_chop | |
4371 | ||
1c846c1f | 4372 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4373 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4374 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4375 | string. Uses the "OOK hack". |
954c1994 GS |
4376 | |
4377 | =cut | |
4378 | */ | |
4379 | ||
79072805 | 4380 | void |
645c22ef | 4381 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
4382 | { |
4383 | register STRLEN delta; | |
4384 | ||
a0d0e21e | 4385 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4386 | return; |
2213622d | 4387 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4388 | if (SvTYPE(sv) < SVt_PVIV) |
4389 | sv_upgrade(sv,SVt_PVIV); | |
4390 | ||
4391 | if (!SvOOK(sv)) { | |
50483b2c JD |
4392 | if (!SvLEN(sv)) { /* make copy of shared string */ |
4393 | char *pvx = SvPVX(sv); | |
4394 | STRLEN len = SvCUR(sv); | |
4395 | SvGROW(sv, len + 1); | |
4396 | Move(pvx,SvPVX(sv),len,char); | |
4397 | *SvEND(sv) = '\0'; | |
4398 | } | |
463ee0b2 | 4399 | SvIVX(sv) = 0; |
79072805 LW |
4400 | SvFLAGS(sv) |= SVf_OOK; |
4401 | } | |
25da4f38 | 4402 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV); |
463ee0b2 | 4403 | delta = ptr - SvPVX(sv); |
79072805 LW |
4404 | SvLEN(sv) -= delta; |
4405 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
4406 | SvPVX(sv) += delta; |
4407 | SvIVX(sv) += delta; | |
79072805 LW |
4408 | } |
4409 | ||
954c1994 GS |
4410 | /* |
4411 | =for apidoc sv_catpvn | |
4412 | ||
4413 | Concatenates the string onto the end of the string which is in the SV. The | |
d5ce4a7c GA |
4414 | C<len> indicates number of bytes to copy. If the SV has the UTF8 |
4415 | status set, then the bytes appended should be valid UTF8. | |
4416 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. | |
954c1994 | 4417 | |
8d6d96c1 HS |
4418 | =for apidoc sv_catpvn_flags |
4419 | ||
4420 | Concatenates the string onto the end of the string which is in the SV. The | |
4421 | C<len> indicates number of bytes to copy. If the SV has the UTF8 | |
4422 | status set, then the bytes appended should be valid UTF8. | |
4423 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if | |
4424 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4425 | in terms of this function. | |
4426 | ||
4427 | =cut | |
4428 | */ | |
4429 | ||
4430 | void | |
4431 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4432 | { | |
4433 | STRLEN dlen; | |
4434 | char *dstr; | |
4435 | ||
4436 | dstr = SvPV_force_flags(dsv, dlen, flags); | |
4437 | SvGROW(dsv, dlen + slen + 1); | |
4438 | if (sstr == dstr) | |
4439 | sstr = SvPVX(dsv); | |
4440 | Move(sstr, SvPVX(dsv) + dlen, slen, char); | |
4441 | SvCUR(dsv) += slen; | |
4442 | *SvEND(dsv) = '\0'; | |
4443 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4444 | SvTAINT(dsv); | |
79072805 LW |
4445 | } |
4446 | ||
954c1994 GS |
4447 | /* |
4448 | =for apidoc sv_catpvn_mg | |
4449 | ||
4450 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4451 | ||
4452 | =cut | |
4453 | */ | |
4454 | ||
79072805 | 4455 | void |
864dbfa3 | 4456 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4457 | { |
4458 | sv_catpvn(sv,ptr,len); | |
4459 | SvSETMAGIC(sv); | |
4460 | } | |
4461 | ||
954c1994 GS |
4462 | /* |
4463 | =for apidoc sv_catsv | |
4464 | ||
13e8c8e3 JH |
4465 | Concatenates the string from SV C<ssv> onto the end of the string in |
4466 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4467 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4468 | |
8d6d96c1 HS |
4469 | =for apidoc sv_catsv_flags |
4470 | ||
4471 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4472 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4473 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4474 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4475 | ||
4476 | =cut */ | |
4477 | ||
ef50df4b | 4478 | void |
8d6d96c1 | 4479 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4480 | { |
13e8c8e3 JH |
4481 | char *spv; |
4482 | STRLEN slen; | |
46199a12 | 4483 | if (!ssv) |
79072805 | 4484 | return; |
46199a12 | 4485 | if ((spv = SvPV(ssv, slen))) { |
4fd84b44 AD |
4486 | /* sutf8 and dutf8 were type bool, but under USE_ITHREADS, |
4487 | gcc version 2.95.2 20000220 (Debian GNU/Linux) for | |
8cf8f3d1 NIS |
4488 | Linux xxx 2.2.17 on sparc64 with gcc -O2, we erroneously |
4489 | get dutf8 = 0x20000000, (i.e. SVf_UTF8) even though | |
4fd84b44 AD |
4490 | dsv->sv_flags doesn't have that bit set. |
4491 | Andy Dougherty 12 Oct 2001 | |
4492 | */ | |
4493 | I32 sutf8 = DO_UTF8(ssv); | |
4494 | I32 dutf8; | |
13e8c8e3 | 4495 | |
8d6d96c1 HS |
4496 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4497 | mg_get(dsv); | |
4498 | dutf8 = DO_UTF8(dsv); | |
4499 | ||
4500 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4501 | if (dutf8) { |
46199a12 | 4502 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4503 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4504 | |
46199a12 | 4505 | sv_utf8_upgrade(csv); |
8d6d96c1 | 4506 | spv = SvPV(csv, slen); |
13e8c8e3 | 4507 | } |
8d6d96c1 HS |
4508 | else |
4509 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4510 | } |
8d6d96c1 | 4511 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4512 | } |
79072805 LW |
4513 | } |
4514 | ||
954c1994 GS |
4515 | /* |
4516 | =for apidoc sv_catsv_mg | |
4517 | ||
4518 | Like C<sv_catsv>, but also handles 'set' magic. | |
4519 | ||
4520 | =cut | |
4521 | */ | |
4522 | ||
79072805 | 4523 | void |
46199a12 | 4524 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4525 | { |
46199a12 JH |
4526 | sv_catsv(dsv,ssv); |
4527 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4528 | } |
4529 | ||
954c1994 GS |
4530 | /* |
4531 | =for apidoc sv_catpv | |
4532 | ||
4533 | Concatenates the string onto the end of the string which is in the SV. | |
d5ce4a7c GA |
4534 | If the SV has the UTF8 status set, then the bytes appended should be |
4535 | valid UTF8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4536 | |
d5ce4a7c | 4537 | =cut */ |
954c1994 | 4538 | |
ef50df4b | 4539 | void |
0c981600 | 4540 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4541 | { |
4542 | register STRLEN len; | |
463ee0b2 | 4543 | STRLEN tlen; |
748a9306 | 4544 | char *junk; |
79072805 | 4545 | |
0c981600 | 4546 | if (!ptr) |
79072805 | 4547 | return; |
748a9306 | 4548 | junk = SvPV_force(sv, tlen); |
0c981600 | 4549 | len = strlen(ptr); |
463ee0b2 | 4550 | SvGROW(sv, tlen + len + 1); |
0c981600 JH |
4551 | if (ptr == junk) |
4552 | ptr = SvPVX(sv); | |
4553 | Move(ptr,SvPVX(sv)+tlen,len+1,char); | |
79072805 | 4554 | SvCUR(sv) += len; |
d41ff1b8 | 4555 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4556 | SvTAINT(sv); |
79072805 LW |
4557 | } |
4558 | ||
954c1994 GS |
4559 | /* |
4560 | =for apidoc sv_catpv_mg | |
4561 | ||
4562 | Like C<sv_catpv>, but also handles 'set' magic. | |
4563 | ||
4564 | =cut | |
4565 | */ | |
4566 | ||
ef50df4b | 4567 | void |
0c981600 | 4568 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4569 | { |
0c981600 | 4570 | sv_catpv(sv,ptr); |
ef50df4b GS |
4571 | SvSETMAGIC(sv); |
4572 | } | |
4573 | ||
645c22ef DM |
4574 | /* |
4575 | =for apidoc newSV | |
4576 | ||
4577 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4578 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4579 | macro. | |
4580 | ||
4581 | =cut | |
4582 | */ | |
4583 | ||
79072805 | 4584 | SV * |
864dbfa3 | 4585 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4586 | { |
4587 | register SV *sv; | |
1c846c1f | 4588 | |
4561caa4 | 4589 | new_SV(sv); |
79072805 LW |
4590 | if (len) { |
4591 | sv_upgrade(sv, SVt_PV); | |
4592 | SvGROW(sv, len + 1); | |
4593 | } | |
4594 | return sv; | |
4595 | } | |
954c1994 | 4596 | /* |
92110913 | 4597 | =for apidoc sv_magicext |
954c1994 | 4598 | |
68795e93 | 4599 | Adds magic to an SV, upgrading it if necessary. Applies the |
92110913 NIS |
4600 | supplied vtable and returns pointer to the magic added. |
4601 | ||
4602 | Note that sv_magicext will allow things that sv_magic will not. | |
68795e93 | 4603 | In particular you can add magic to SvREADONLY SVs and and more than |
92110913 | 4604 | one instance of the same 'how' |
645c22ef | 4605 | |
92110913 | 4606 | I C<namelen> is greater then zero then a savepvn() I<copy> of C<name> is stored, |
68795e93 NIS |
4607 | if C<namelen> is zero then C<name> is stored as-is and - as another special |
4608 | case - if C<(name && namelen == HEf_SVKEY)> then C<name> is assumed to contain | |
92110913 NIS |
4609 | an C<SV*> and has its REFCNT incremented |
4610 | ||
4611 | (This is now used as a subroutine by sv_magic.) | |
954c1994 GS |
4612 | |
4613 | =cut | |
4614 | */ | |
92110913 NIS |
4615 | MAGIC * |
4616 | Perl_sv_magicext(pTHX_ SV* sv, SV* obj, int how, MGVTBL *vtable, | |
4617 | const char* name, I32 namlen) | |
79072805 LW |
4618 | { |
4619 | MAGIC* mg; | |
68795e93 | 4620 | |
92110913 NIS |
4621 | if (SvTYPE(sv) < SVt_PVMG) { |
4622 | (void)SvUPGRADE(sv, SVt_PVMG); | |
463ee0b2 | 4623 | } |
79072805 LW |
4624 | Newz(702,mg, 1, MAGIC); |
4625 | mg->mg_moremagic = SvMAGIC(sv); | |
79072805 | 4626 | SvMAGIC(sv) = mg; |
75f9d97a | 4627 | |
18808301 | 4628 | /* Some magic sontains a reference loop, where the sv and object refer to |
bb03859b RS |
4629 | each other. To prevent a reference loop that would prevent such |
4630 | objects being freed, we look for such loops and if we find one we | |
87f0b213 JH |
4631 | avoid incrementing the object refcount. |
4632 | ||
4633 | Note we cannot do this to avoid self-tie loops as intervening RV must | |
4634 | have its REFCNT incremented to keep it in existence - instead we could | |
4635 | special case them in sv_free() -- NI-S | |
4636 | ||
4637 | */ | |
14befaf4 DM |
4638 | if (!obj || obj == sv || |
4639 | how == PERL_MAGIC_arylen || | |
4640 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
4641 | (SvTYPE(obj) == SVt_PVGV && |
4642 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4643 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
2628be26 | 4644 | GvFORM(obj) == (CV*)sv))) |
75f9d97a | 4645 | { |
8990e307 | 4646 | mg->mg_obj = obj; |
75f9d97a | 4647 | } |
85e6fe83 | 4648 | else { |
8990e307 | 4649 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4650 | mg->mg_flags |= MGf_REFCOUNTED; |
4651 | } | |
79072805 | 4652 | mg->mg_type = how; |
565764a8 | 4653 | mg->mg_len = namlen; |
9cbac4c7 | 4654 | if (name) { |
92110913 | 4655 | if (namlen > 0) |
1edc1566 | 4656 | mg->mg_ptr = savepvn(name, namlen); |
c6ee37c5 | 4657 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4658 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
68795e93 | 4659 | else |
92110913 | 4660 | mg->mg_ptr = (char *) name; |
9cbac4c7 | 4661 | } |
92110913 | 4662 | mg->mg_virtual = vtable; |
68795e93 | 4663 | |
92110913 NIS |
4664 | mg_magical(sv); |
4665 | if (SvGMAGICAL(sv)) | |
4666 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
4667 | return mg; | |
4668 | } | |
4669 | ||
4670 | /* | |
4671 | =for apidoc sv_magic | |
1c846c1f | 4672 | |
92110913 NIS |
4673 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4674 | then adds a new magic item of type C<how> to the head of the magic list. | |
4675 | ||
4676 | =cut | |
4677 | */ | |
4678 | ||
4679 | void | |
4680 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) | |
68795e93 | 4681 | { |
92110913 NIS |
4682 | MAGIC* mg; |
4683 | MGVTBL *vtable = 0; | |
4684 | ||
765f542d NC |
4685 | #ifdef PERL_COPY_ON_WRITE |
4686 | if (SvIsCOW(sv)) | |
4687 | sv_force_normal_flags(sv, 0); | |
4688 | #endif | |
92110913 NIS |
4689 | if (SvREADONLY(sv)) { |
4690 | if (PL_curcop != &PL_compiling | |
4691 | && how != PERL_MAGIC_regex_global | |
4692 | && how != PERL_MAGIC_bm | |
4693 | && how != PERL_MAGIC_fm | |
4694 | && how != PERL_MAGIC_sv | |
4695 | ) | |
4696 | { | |
4697 | Perl_croak(aTHX_ PL_no_modify); | |
4698 | } | |
4699 | } | |
4700 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { | |
4701 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { | |
68795e93 NIS |
4702 | /* sv_magic() refuses to add a magic of the same 'how' as an |
4703 | existing one | |
92110913 NIS |
4704 | */ |
4705 | if (how == PERL_MAGIC_taint) | |
4706 | mg->mg_len |= 1; | |
4707 | return; | |
4708 | } | |
4709 | } | |
68795e93 | 4710 | |
79072805 | 4711 | switch (how) { |
14befaf4 | 4712 | case PERL_MAGIC_sv: |
92110913 | 4713 | vtable = &PL_vtbl_sv; |
79072805 | 4714 | break; |
14befaf4 | 4715 | case PERL_MAGIC_overload: |
92110913 | 4716 | vtable = &PL_vtbl_amagic; |
a0d0e21e | 4717 | break; |
14befaf4 | 4718 | case PERL_MAGIC_overload_elem: |
92110913 | 4719 | vtable = &PL_vtbl_amagicelem; |
a0d0e21e | 4720 | break; |
14befaf4 | 4721 | case PERL_MAGIC_overload_table: |
92110913 | 4722 | vtable = &PL_vtbl_ovrld; |
a0d0e21e | 4723 | break; |
14befaf4 | 4724 | case PERL_MAGIC_bm: |
92110913 | 4725 | vtable = &PL_vtbl_bm; |
79072805 | 4726 | break; |
14befaf4 | 4727 | case PERL_MAGIC_regdata: |
92110913 | 4728 | vtable = &PL_vtbl_regdata; |
6cef1e77 | 4729 | break; |
14befaf4 | 4730 | case PERL_MAGIC_regdatum: |
92110913 | 4731 | vtable = &PL_vtbl_regdatum; |
6cef1e77 | 4732 | break; |
14befaf4 | 4733 | case PERL_MAGIC_env: |
92110913 | 4734 | vtable = &PL_vtbl_env; |
79072805 | 4735 | break; |
14befaf4 | 4736 | case PERL_MAGIC_fm: |
92110913 | 4737 | vtable = &PL_vtbl_fm; |
55497cff | 4738 | break; |
14befaf4 | 4739 | case PERL_MAGIC_envelem: |
92110913 | 4740 | vtable = &PL_vtbl_envelem; |
79072805 | 4741 | break; |
14befaf4 | 4742 | case PERL_MAGIC_regex_global: |
92110913 | 4743 | vtable = &PL_vtbl_mglob; |
93a17b20 | 4744 | break; |
14befaf4 | 4745 | case PERL_MAGIC_isa: |
92110913 | 4746 | vtable = &PL_vtbl_isa; |
463ee0b2 | 4747 | break; |
14befaf4 | 4748 | case PERL_MAGIC_isaelem: |
92110913 | 4749 | vtable = &PL_vtbl_isaelem; |
463ee0b2 | 4750 | break; |
14befaf4 | 4751 | case PERL_MAGIC_nkeys: |
92110913 | 4752 | vtable = &PL_vtbl_nkeys; |
16660edb | 4753 | break; |
14befaf4 | 4754 | case PERL_MAGIC_dbfile: |
92110913 | 4755 | vtable = 0; |
93a17b20 | 4756 | break; |
14befaf4 | 4757 | case PERL_MAGIC_dbline: |
92110913 | 4758 | vtable = &PL_vtbl_dbline; |
79072805 | 4759 | break; |
4d1ff10f | 4760 | #ifdef USE_5005THREADS |
14befaf4 | 4761 | case PERL_MAGIC_mutex: |
92110913 | 4762 | vtable = &PL_vtbl_mutex; |
f93b4edd | 4763 | break; |
4d1ff10f | 4764 | #endif /* USE_5005THREADS */ |
36477c24 | 4765 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 4766 | case PERL_MAGIC_collxfrm: |
92110913 | 4767 | vtable = &PL_vtbl_collxfrm; |
bbce6d69 | 4768 | break; |
36477c24 | 4769 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 4770 | case PERL_MAGIC_tied: |
92110913 | 4771 | vtable = &PL_vtbl_pack; |
463ee0b2 | 4772 | break; |
14befaf4 DM |
4773 | case PERL_MAGIC_tiedelem: |
4774 | case PERL_MAGIC_tiedscalar: | |
92110913 | 4775 | vtable = &PL_vtbl_packelem; |
463ee0b2 | 4776 | break; |
14befaf4 | 4777 | case PERL_MAGIC_qr: |
92110913 | 4778 | vtable = &PL_vtbl_regexp; |
c277df42 | 4779 | break; |
14befaf4 | 4780 | case PERL_MAGIC_sig: |
92110913 | 4781 | vtable = &PL_vtbl_sig; |
79072805 | 4782 | break; |
14befaf4 | 4783 | case PERL_MAGIC_sigelem: |
92110913 | 4784 | vtable = &PL_vtbl_sigelem; |
79072805 | 4785 | break; |
14befaf4 | 4786 | case PERL_MAGIC_taint: |
92110913 | 4787 | vtable = &PL_vtbl_taint; |
463ee0b2 | 4788 | break; |
14befaf4 | 4789 | case PERL_MAGIC_uvar: |
92110913 | 4790 | vtable = &PL_vtbl_uvar; |
79072805 | 4791 | break; |
14befaf4 | 4792 | case PERL_MAGIC_vec: |
92110913 | 4793 | vtable = &PL_vtbl_vec; |
79072805 | 4794 | break; |
14befaf4 | 4795 | case PERL_MAGIC_substr: |
92110913 | 4796 | vtable = &PL_vtbl_substr; |
79072805 | 4797 | break; |
14befaf4 | 4798 | case PERL_MAGIC_defelem: |
92110913 | 4799 | vtable = &PL_vtbl_defelem; |
5f05dabc | 4800 | break; |
14befaf4 | 4801 | case PERL_MAGIC_glob: |
92110913 | 4802 | vtable = &PL_vtbl_glob; |
79072805 | 4803 | break; |
14befaf4 | 4804 | case PERL_MAGIC_arylen: |
92110913 | 4805 | vtable = &PL_vtbl_arylen; |
79072805 | 4806 | break; |
14befaf4 | 4807 | case PERL_MAGIC_pos: |
92110913 | 4808 | vtable = &PL_vtbl_pos; |
a0d0e21e | 4809 | break; |
14befaf4 | 4810 | case PERL_MAGIC_backref: |
92110913 | 4811 | vtable = &PL_vtbl_backref; |
810b8aa5 | 4812 | break; |
14befaf4 DM |
4813 | case PERL_MAGIC_ext: |
4814 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
4815 | /* Useful for attaching extension internal data to perl vars. */ |
4816 | /* Note that multiple extensions may clash if magical scalars */ | |
4817 | /* etc holding private data from one are passed to another. */ | |
a0d0e21e | 4818 | break; |
79072805 | 4819 | default: |
14befaf4 | 4820 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 4821 | } |
68795e93 | 4822 | |
92110913 NIS |
4823 | /* Rest of work is done else where */ |
4824 | mg = sv_magicext(sv,obj,how,vtable,name,namlen); | |
68795e93 | 4825 | |
92110913 NIS |
4826 | switch (how) { |
4827 | case PERL_MAGIC_taint: | |
4828 | mg->mg_len = 1; | |
4829 | break; | |
4830 | case PERL_MAGIC_ext: | |
4831 | case PERL_MAGIC_dbfile: | |
4832 | SvRMAGICAL_on(sv); | |
4833 | break; | |
4834 | } | |
463ee0b2 LW |
4835 | } |
4836 | ||
c461cf8f JH |
4837 | /* |
4838 | =for apidoc sv_unmagic | |
4839 | ||
645c22ef | 4840 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
4841 | |
4842 | =cut | |
4843 | */ | |
4844 | ||
463ee0b2 | 4845 | int |
864dbfa3 | 4846 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
4847 | { |
4848 | MAGIC* mg; | |
4849 | MAGIC** mgp; | |
91bba347 | 4850 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
4851 | return 0; |
4852 | mgp = &SvMAGIC(sv); | |
4853 | for (mg = *mgp; mg; mg = *mgp) { | |
4854 | if (mg->mg_type == type) { | |
4855 | MGVTBL* vtbl = mg->mg_virtual; | |
4856 | *mgp = mg->mg_moremagic; | |
1d7c1841 | 4857 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 4858 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 4859 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
92110913 | 4860 | if (mg->mg_len > 0) |
1edc1566 | 4861 | Safefree(mg->mg_ptr); |
565764a8 | 4862 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 4863 | SvREFCNT_dec((SV*)mg->mg_ptr); |
9cbac4c7 | 4864 | } |
a0d0e21e LW |
4865 | if (mg->mg_flags & MGf_REFCOUNTED) |
4866 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
4867 | Safefree(mg); |
4868 | } | |
4869 | else | |
4870 | mgp = &mg->mg_moremagic; | |
79072805 | 4871 | } |
91bba347 | 4872 | if (!SvMAGIC(sv)) { |
463ee0b2 | 4873 | SvMAGICAL_off(sv); |
06759ea0 | 4874 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
4875 | } |
4876 | ||
4877 | return 0; | |
79072805 LW |
4878 | } |
4879 | ||
c461cf8f JH |
4880 | /* |
4881 | =for apidoc sv_rvweaken | |
4882 | ||
645c22ef DM |
4883 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
4884 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
4885 | push a back-reference to this RV onto the array of backreferences | |
4886 | associated with that magic. | |
c461cf8f JH |
4887 | |
4888 | =cut | |
4889 | */ | |
4890 | ||
810b8aa5 | 4891 | SV * |
864dbfa3 | 4892 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
4893 | { |
4894 | SV *tsv; | |
4895 | if (!SvOK(sv)) /* let undefs pass */ | |
4896 | return sv; | |
4897 | if (!SvROK(sv)) | |
cea2e8a9 | 4898 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 4899 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 4900 | if (ckWARN(WARN_MISC)) |
9014280d | 4901 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Reference is already weak"); |
810b8aa5 GS |
4902 | return sv; |
4903 | } | |
4904 | tsv = SvRV(sv); | |
4905 | sv_add_backref(tsv, sv); | |
4906 | SvWEAKREF_on(sv); | |
1c846c1f | 4907 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
4908 | return sv; |
4909 | } | |
4910 | ||
645c22ef DM |
4911 | /* Give tsv backref magic if it hasn't already got it, then push a |
4912 | * back-reference to sv onto the array associated with the backref magic. | |
4913 | */ | |
4914 | ||
810b8aa5 | 4915 | STATIC void |
cea2e8a9 | 4916 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
4917 | { |
4918 | AV *av; | |
4919 | MAGIC *mg; | |
14befaf4 | 4920 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
4921 | av = (AV*)mg->mg_obj; |
4922 | else { | |
4923 | av = newAV(); | |
14befaf4 | 4924 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
810b8aa5 GS |
4925 | SvREFCNT_dec(av); /* for sv_magic */ |
4926 | } | |
4927 | av_push(av,sv); | |
4928 | } | |
4929 | ||
645c22ef DM |
4930 | /* delete a back-reference to ourselves from the backref magic associated |
4931 | * with the SV we point to. | |
4932 | */ | |
4933 | ||
1c846c1f | 4934 | STATIC void |
cea2e8a9 | 4935 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
4936 | { |
4937 | AV *av; | |
4938 | SV **svp; | |
4939 | I32 i; | |
4940 | SV *tsv = SvRV(sv); | |
c04a4dfe | 4941 | MAGIC *mg = NULL; |
14befaf4 | 4942 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 4943 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
4944 | av = (AV *)mg->mg_obj; |
4945 | svp = AvARRAY(av); | |
4946 | i = AvFILLp(av); | |
4947 | while (i >= 0) { | |
4948 | if (svp[i] == sv) { | |
4949 | svp[i] = &PL_sv_undef; /* XXX */ | |
4950 | } | |
4951 | i--; | |
4952 | } | |
4953 | } | |
4954 | ||
954c1994 GS |
4955 | /* |
4956 | =for apidoc sv_insert | |
4957 | ||
4958 | Inserts a string at the specified offset/length within the SV. Similar to | |
4959 | the Perl substr() function. | |
4960 | ||
4961 | =cut | |
4962 | */ | |
4963 | ||
79072805 | 4964 | void |
864dbfa3 | 4965 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
4966 | { |
4967 | register char *big; | |
4968 | register char *mid; | |
4969 | register char *midend; | |
4970 | register char *bigend; | |
4971 | register I32 i; | |
6ff81951 | 4972 | STRLEN curlen; |
1c846c1f | 4973 | |
79072805 | 4974 | |
8990e307 | 4975 | if (!bigstr) |
cea2e8a9 | 4976 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 4977 | SvPV_force(bigstr, curlen); |
60fa28ff | 4978 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
4979 | if (offset + len > curlen) { |
4980 | SvGROW(bigstr, offset+len+1); | |
4981 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
4982 | SvCUR_set(bigstr, offset+len); | |
4983 | } | |
79072805 | 4984 | |
69b47968 | 4985 | SvTAINT(bigstr); |
79072805 LW |
4986 | i = littlelen - len; |
4987 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 4988 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
4989 | mid = big + offset + len; |
4990 | midend = bigend = big + SvCUR(bigstr); | |
4991 | bigend += i; | |
4992 | *bigend = '\0'; | |
4993 | while (midend > mid) /* shove everything down */ | |
4994 | *--bigend = *--midend; | |
4995 | Move(little,big+offset,littlelen,char); | |
4996 | SvCUR(bigstr) += i; | |
4997 | SvSETMAGIC(bigstr); | |
4998 | return; | |
4999 | } | |
5000 | else if (i == 0) { | |
463ee0b2 | 5001 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
5002 | SvSETMAGIC(bigstr); |
5003 | return; | |
5004 | } | |
5005 | ||
463ee0b2 | 5006 | big = SvPVX(bigstr); |
79072805 LW |
5007 | mid = big + offset; |
5008 | midend = mid + len; | |
5009 | bigend = big + SvCUR(bigstr); | |
5010 | ||
5011 | if (midend > bigend) | |
cea2e8a9 | 5012 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
5013 | |
5014 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
5015 | if (littlelen) { | |
5016 | Move(little, mid, littlelen,char); | |
5017 | mid += littlelen; | |
5018 | } | |
5019 | i = bigend - midend; | |
5020 | if (i > 0) { | |
5021 | Move(midend, mid, i,char); | |
5022 | mid += i; | |
5023 | } | |
5024 | *mid = '\0'; | |
5025 | SvCUR_set(bigstr, mid - big); | |
5026 | } | |
5027 | /*SUPPRESS 560*/ | |
155aba94 | 5028 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
5029 | midend -= littlelen; |
5030 | mid = midend; | |
5031 | sv_chop(bigstr,midend-i); | |
5032 | big += i; | |
5033 | while (i--) | |
5034 | *--midend = *--big; | |
5035 | if (littlelen) | |
5036 | Move(little, mid, littlelen,char); | |
5037 | } | |
5038 | else if (littlelen) { | |
5039 | midend -= littlelen; | |
5040 | sv_chop(bigstr,midend); | |
5041 | Move(little,midend,littlelen,char); | |
5042 | } | |
5043 | else { | |
5044 | sv_chop(bigstr,midend); | |
5045 | } | |
5046 | SvSETMAGIC(bigstr); | |
5047 | } | |
5048 | ||
c461cf8f JH |
5049 | /* |
5050 | =for apidoc sv_replace | |
5051 | ||
5052 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
5053 | The target SV physically takes over ownership of the body of the source SV |
5054 | and inherits its flags; however, the target keeps any magic it owns, | |
5055 | and any magic in the source is discarded. | |
ff276b08 | 5056 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 5057 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
5058 | |
5059 | =cut | |
5060 | */ | |
79072805 LW |
5061 | |
5062 | void | |
864dbfa3 | 5063 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 LW |
5064 | { |
5065 | U32 refcnt = SvREFCNT(sv); | |
765f542d | 5066 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
0453d815 | 5067 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 5068 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Reference miscount in sv_replace()"); |
93a17b20 | 5069 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
5070 | if (SvMAGICAL(nsv)) |
5071 | mg_free(nsv); | |
5072 | else | |
5073 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 5074 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 5075 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
5076 | SvMAGICAL_off(sv); |
5077 | SvMAGIC(sv) = 0; | |
5078 | } | |
79072805 LW |
5079 | SvREFCNT(sv) = 0; |
5080 | sv_clear(sv); | |
477f5d66 | 5081 | assert(!SvREFCNT(sv)); |
79072805 LW |
5082 | StructCopy(nsv,sv,SV); |
5083 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 5084 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
463ee0b2 | 5085 | del_SV(nsv); |
79072805 LW |
5086 | } |
5087 | ||
c461cf8f JH |
5088 | /* |
5089 | =for apidoc sv_clear | |
5090 | ||
645c22ef DM |
5091 | Clear an SV: call any destructors, free up any memory used by the body, |
5092 | and free the body itself. The SV's head is I<not> freed, although | |
5093 | its type is set to all 1's so that it won't inadvertently be assumed | |
5094 | to be live during global destruction etc. | |
5095 | This function should only be called when REFCNT is zero. Most of the time | |
5096 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
5097 | instead. | |
c461cf8f JH |
5098 | |
5099 | =cut | |
5100 | */ | |
5101 | ||
79072805 | 5102 | void |
864dbfa3 | 5103 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 5104 | { |
ec12f114 | 5105 | HV* stash; |
79072805 LW |
5106 | assert(sv); |
5107 | assert(SvREFCNT(sv) == 0); | |
5108 | ||
ed6116ce | 5109 | if (SvOBJECT(sv)) { |
3280af22 | 5110 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 5111 | dSP; |
32251b26 | 5112 | CV* destructor; |
837485b6 | 5113 | SV tmpref; |
a0d0e21e | 5114 | |
837485b6 GS |
5115 | Zero(&tmpref, 1, SV); |
5116 | sv_upgrade(&tmpref, SVt_RV); | |
5117 | SvROK_on(&tmpref); | |
5118 | SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ | |
5119 | SvREFCNT(&tmpref) = 1; | |
8ebc5c01 | 5120 | |
d460ef45 | 5121 | do { |
4e8e7886 | 5122 | stash = SvSTASH(sv); |
32251b26 | 5123 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 GS |
5124 | if (destructor) { |
5125 | ENTER; | |
e788e7d3 | 5126 | PUSHSTACKi(PERLSI_DESTROY); |
837485b6 | 5127 | SvRV(&tmpref) = SvREFCNT_inc(sv); |
4e8e7886 GS |
5128 | EXTEND(SP, 2); |
5129 | PUSHMARK(SP); | |
837485b6 | 5130 | PUSHs(&tmpref); |
4e8e7886 | 5131 | PUTBACK; |
32251b26 | 5132 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR); |
4e8e7886 | 5133 | SvREFCNT(sv)--; |
d3acc0f7 | 5134 | POPSTACK; |
3095d977 | 5135 | SPAGAIN; |
4e8e7886 GS |
5136 | LEAVE; |
5137 | } | |
5138 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 5139 | |
837485b6 | 5140 | del_XRV(SvANY(&tmpref)); |
6f44e0a4 JP |
5141 | |
5142 | if (SvREFCNT(sv)) { | |
5143 | if (PL_in_clean_objs) | |
cea2e8a9 | 5144 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
6f44e0a4 JP |
5145 | HvNAME(stash)); |
5146 | /* DESTROY gave object new lease on life */ | |
5147 | return; | |
5148 | } | |
a0d0e21e | 5149 | } |
4e8e7886 | 5150 | |
a0d0e21e | 5151 | if (SvOBJECT(sv)) { |
4e8e7886 | 5152 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
5153 | SvOBJECT_off(sv); /* Curse the object. */ |
5154 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 5155 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 5156 | } |
463ee0b2 | 5157 | } |
524189f1 JH |
5158 | if (SvTYPE(sv) >= SVt_PVMG) { |
5159 | if (SvMAGIC(sv)) | |
5160 | mg_free(sv); | |
5161 | if (SvFLAGS(sv) & SVpad_TYPED) | |
5162 | SvREFCNT_dec(SvSTASH(sv)); | |
5163 | } | |
ec12f114 | 5164 | stash = NULL; |
79072805 | 5165 | switch (SvTYPE(sv)) { |
8990e307 | 5166 | case SVt_PVIO: |
df0bd2f4 GS |
5167 | if (IoIFP(sv) && |
5168 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 5169 | IoIFP(sv) != PerlIO_stdout() && |
5170 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 5171 | { |
f2b5be74 | 5172 | io_close((IO*)sv, FALSE); |
93578b34 | 5173 | } |
1d7c1841 | 5174 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 5175 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 5176 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
5177 | Safefree(IoTOP_NAME(sv)); |
5178 | Safefree(IoFMT_NAME(sv)); | |
5179 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 5180 | /* FALL THROUGH */ |
79072805 | 5181 | case SVt_PVBM: |
a0d0e21e | 5182 | goto freescalar; |
79072805 | 5183 | case SVt_PVCV: |
748a9306 | 5184 | case SVt_PVFM: |
85e6fe83 | 5185 | cv_undef((CV*)sv); |
a0d0e21e | 5186 | goto freescalar; |
79072805 | 5187 | case SVt_PVHV: |
85e6fe83 | 5188 | hv_undef((HV*)sv); |
a0d0e21e | 5189 | break; |
79072805 | 5190 | case SVt_PVAV: |
85e6fe83 | 5191 | av_undef((AV*)sv); |
a0d0e21e | 5192 | break; |
02270b4e GS |
5193 | case SVt_PVLV: |
5194 | SvREFCNT_dec(LvTARG(sv)); | |
5195 | goto freescalar; | |
a0d0e21e | 5196 | case SVt_PVGV: |
1edc1566 | 5197 | gp_free((GV*)sv); |
a0d0e21e | 5198 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
5199 | /* cannot decrease stash refcount yet, as we might recursively delete |
5200 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
5201 | of stash until current sv is completely gone. | |
5202 | -- JohnPC, 27 Mar 1998 */ | |
5203 | stash = GvSTASH(sv); | |
a0d0e21e | 5204 | /* FALL THROUGH */ |
79072805 | 5205 | case SVt_PVMG: |
79072805 LW |
5206 | case SVt_PVNV: |
5207 | case SVt_PVIV: | |
a0d0e21e LW |
5208 | freescalar: |
5209 | (void)SvOOK_off(sv); | |
79072805 LW |
5210 | /* FALL THROUGH */ |
5211 | case SVt_PV: | |
a0d0e21e | 5212 | case SVt_RV: |
810b8aa5 GS |
5213 | if (SvROK(sv)) { |
5214 | if (SvWEAKREF(sv)) | |
5215 | sv_del_backref(sv); | |
5216 | else | |
5217 | SvREFCNT_dec(SvRV(sv)); | |
5218 | } | |
765f542d NC |
5219 | #ifdef PERL_COPY_ON_WRITE |
5220 | else if (SvPVX(sv)) { | |
5221 | if (SvIsCOW(sv)) { | |
5222 | /* I believe I need to grab the global SV mutex here and | |
5223 | then recheck the COW status. */ | |
46187eeb NC |
5224 | if (DEBUG_C_TEST) { |
5225 | PerlIO_printf(Perl_debug_log, "Copy on write: clear\n"); | |
e419cbc5 | 5226 | sv_dump(sv); |
46187eeb | 5227 | } |
e419cbc5 | 5228 | sv_release_COW(sv, SvPVX(sv), SvCUR(sv), SvLEN(sv), |
765f542d NC |
5229 | SvUVX(sv), SV_COW_NEXT_SV(sv)); |
5230 | /* And drop it here. */ | |
5231 | SvFAKE_off(sv); | |
5232 | } else if (SvLEN(sv)) { | |
5233 | Safefree(SvPVX(sv)); | |
5234 | } | |
5235 | } | |
5236 | #else | |
1edc1566 | 5237 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 5238 | Safefree(SvPVX(sv)); |
1c846c1f | 5239 | else if (SvPVX(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
25716404 GS |
5240 | unsharepvn(SvPVX(sv), |
5241 | SvUTF8(sv) ? -(I32)SvCUR(sv) : SvCUR(sv), | |
5242 | SvUVX(sv)); | |
1c846c1f NIS |
5243 | SvFAKE_off(sv); |
5244 | } | |
765f542d | 5245 | #endif |
79072805 | 5246 | break; |
a0d0e21e | 5247 | /* |
79072805 | 5248 | case SVt_NV: |
79072805 | 5249 | case SVt_IV: |
79072805 LW |
5250 | case SVt_NULL: |
5251 | break; | |
a0d0e21e | 5252 | */ |
79072805 LW |
5253 | } |
5254 | ||
5255 | switch (SvTYPE(sv)) { | |
5256 | case SVt_NULL: | |
5257 | break; | |
79072805 LW |
5258 | case SVt_IV: |
5259 | del_XIV(SvANY(sv)); | |
5260 | break; | |
5261 | case SVt_NV: | |
5262 | del_XNV(SvANY(sv)); | |
5263 | break; | |
ed6116ce LW |
5264 | case SVt_RV: |
5265 | del_XRV(SvANY(sv)); | |
5266 | break; | |
79072805 LW |
5267 | case SVt_PV: |
5268 | del_XPV(SvANY(sv)); | |
5269 | break; | |
5270 | case SVt_PVIV: | |
5271 | del_XPVIV(SvANY(sv)); | |
5272 | break; | |
5273 | case SVt_PVNV: | |
5274 | del_XPVNV(SvANY(sv)); | |
5275 | break; | |
5276 | case SVt_PVMG: | |
5277 | del_XPVMG(SvANY(sv)); | |
5278 | break; | |
5279 | case SVt_PVLV: | |
5280 | del_XPVLV(SvANY(sv)); | |
5281 | break; | |
5282 | case SVt_PVAV: | |
5283 | del_XPVAV(SvANY(sv)); | |
5284 | break; | |
5285 | case SVt_PVHV: | |
5286 | del_XPVHV(SvANY(sv)); | |
5287 | break; | |
5288 | case SVt_PVCV: | |
5289 | del_XPVCV(SvANY(sv)); | |
5290 | break; | |
5291 | case SVt_PVGV: | |
5292 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
5293 | /* code duplication for increased performance. */ |
5294 | SvFLAGS(sv) &= SVf_BREAK; | |
5295 | SvFLAGS(sv) |= SVTYPEMASK; | |
5296 | /* decrease refcount of the stash that owns this GV, if any */ | |
5297 | if (stash) | |
5298 | SvREFCNT_dec(stash); | |
5299 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
5300 | case SVt_PVBM: |
5301 | del_XPVBM(SvANY(sv)); | |
5302 | break; | |
5303 | case SVt_PVFM: | |
5304 | del_XPVFM(SvANY(sv)); | |
5305 | break; | |
8990e307 LW |
5306 | case SVt_PVIO: |
5307 | del_XPVIO(SvANY(sv)); | |
5308 | break; | |
79072805 | 5309 | } |
a0d0e21e | 5310 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 5311 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
5312 | } |
5313 | ||
645c22ef DM |
5314 | /* |
5315 | =for apidoc sv_newref | |
5316 | ||
5317 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5318 | instead. | |
5319 | ||
5320 | =cut | |
5321 | */ | |
5322 | ||
79072805 | 5323 | SV * |
864dbfa3 | 5324 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5325 | { |
463ee0b2 | 5326 | if (sv) |
dce16143 | 5327 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
5328 | return sv; |
5329 | } | |
5330 | ||
c461cf8f JH |
5331 | /* |
5332 | =for apidoc sv_free | |
5333 | ||
645c22ef DM |
5334 | Decrement an SV's reference count, and if it drops to zero, call |
5335 | C<sv_clear> to invoke destructors and free up any memory used by | |
5336 | the body; finally, deallocate the SV's head itself. | |
5337 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5338 | |
5339 | =cut | |
5340 | */ | |
5341 | ||
79072805 | 5342 | void |
864dbfa3 | 5343 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5344 | { |
dce16143 MB |
5345 | int refcount_is_zero; |
5346 | ||
79072805 LW |
5347 | if (!sv) |
5348 | return; | |
a0d0e21e LW |
5349 | if (SvREFCNT(sv) == 0) { |
5350 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5351 | /* this SV's refcnt has been artificially decremented to |
5352 | * trigger cleanup */ | |
a0d0e21e | 5353 | return; |
3280af22 | 5354 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5355 | return; |
d689ffdd JP |
5356 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5357 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5358 | SvREFCNT(sv) = (~(U32)0)/2; | |
5359 | return; | |
5360 | } | |
0453d815 | 5361 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 5362 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Attempt to free unreferenced scalar"); |
79072805 LW |
5363 | return; |
5364 | } | |
dce16143 | 5365 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
b881518d | 5366 | if (!refcount_is_zero) |
8990e307 | 5367 | return; |
463ee0b2 LW |
5368 | #ifdef DEBUGGING |
5369 | if (SvTEMP(sv)) { | |
0453d815 | 5370 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 5371 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
1d7c1841 GS |
5372 | "Attempt to free temp prematurely: SV 0x%"UVxf, |
5373 | PTR2UV(sv)); | |
79072805 | 5374 | return; |
79072805 | 5375 | } |
463ee0b2 | 5376 | #endif |
d689ffdd JP |
5377 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5378 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5379 | SvREFCNT(sv) = (~(U32)0)/2; | |
5380 | return; | |
5381 | } | |
79072805 | 5382 | sv_clear(sv); |
477f5d66 CS |
5383 | if (! SvREFCNT(sv)) |
5384 | del_SV(sv); | |
79072805 LW |
5385 | } |
5386 | ||
954c1994 GS |
5387 | /* |
5388 | =for apidoc sv_len | |
5389 | ||
645c22ef DM |
5390 | Returns the length of the string in the SV. Handles magic and type |
5391 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5392 | |
5393 | =cut | |
5394 | */ | |
5395 | ||
79072805 | 5396 | STRLEN |
864dbfa3 | 5397 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5398 | { |
463ee0b2 | 5399 | STRLEN len; |
79072805 LW |
5400 | |
5401 | if (!sv) | |
5402 | return 0; | |
5403 | ||
8990e307 | 5404 | if (SvGMAGICAL(sv)) |
565764a8 | 5405 | len = mg_length(sv); |
8990e307 | 5406 | else |
497b47a8 | 5407 | (void)SvPV(sv, len); |
463ee0b2 | 5408 | return len; |
79072805 LW |
5409 | } |
5410 | ||
c461cf8f JH |
5411 | /* |
5412 | =for apidoc sv_len_utf8 | |
5413 | ||
5414 | Returns the number of characters in the string in an SV, counting wide | |
645c22ef | 5415 | UTF8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5416 | |
5417 | =cut | |
5418 | */ | |
5419 | ||
a0ed51b3 | 5420 | STRLEN |
864dbfa3 | 5421 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5422 | { |
a0ed51b3 LW |
5423 | if (!sv) |
5424 | return 0; | |
5425 | ||
a0ed51b3 | 5426 | if (SvGMAGICAL(sv)) |
b76347f2 | 5427 | return mg_length(sv); |
a0ed51b3 | 5428 | else |
b76347f2 JH |
5429 | { |
5430 | STRLEN len; | |
5431 | U8 *s = (U8*)SvPV(sv, len); | |
5432 | ||
d6efbbad | 5433 | return Perl_utf8_length(aTHX_ s, s + len); |
a0ed51b3 | 5434 | } |
a0ed51b3 LW |
5435 | } |
5436 | ||
645c22ef DM |
5437 | /* |
5438 | =for apidoc sv_pos_u2b | |
5439 | ||
5440 | Converts the value pointed to by offsetp from a count of UTF8 chars from | |
5441 | the start of the string, to a count of the equivalent number of bytes; if | |
5442 | lenp is non-zero, it does the same to lenp, but this time starting from | |
5443 | the offset, rather than from the start of the string. Handles magic and | |
5444 | type coercion. | |
5445 | ||
5446 | =cut | |
5447 | */ | |
5448 | ||
a0ed51b3 | 5449 | void |
864dbfa3 | 5450 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 5451 | { |
dfe13c55 GS |
5452 | U8 *start; |
5453 | U8 *s; | |
5454 | U8 *send; | |
a0ed51b3 LW |
5455 | I32 uoffset = *offsetp; |
5456 | STRLEN len; | |
5457 | ||
5458 | if (!sv) | |
5459 | return; | |
5460 | ||
dfe13c55 | 5461 | start = s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
5462 | send = s + len; |
5463 | while (s < send && uoffset--) | |
5464 | s += UTF8SKIP(s); | |
bb40f870 GA |
5465 | if (s >= send) |
5466 | s = send; | |
a0ed51b3 LW |
5467 | *offsetp = s - start; |
5468 | if (lenp) { | |
5469 | I32 ulen = *lenp; | |
5470 | start = s; | |
5471 | while (s < send && ulen--) | |
5472 | s += UTF8SKIP(s); | |
bb40f870 GA |
5473 | if (s >= send) |
5474 | s = send; | |
a0ed51b3 LW |
5475 | *lenp = s - start; |
5476 | } | |
5477 | return; | |
5478 | } | |
5479 | ||
645c22ef DM |
5480 | /* |
5481 | =for apidoc sv_pos_b2u | |
5482 | ||
5483 | Converts the value pointed to by offsetp from a count of bytes from the | |
5484 | start of the string, to a count of the equivalent number of UTF8 chars. | |
5485 | Handles magic and type coercion. | |
5486 | ||
5487 | =cut | |
5488 | */ | |
5489 | ||
a0ed51b3 | 5490 | void |
864dbfa3 | 5491 | Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp) |
a0ed51b3 | 5492 | { |
dfe13c55 GS |
5493 | U8 *s; |
5494 | U8 *send; | |
a0ed51b3 LW |
5495 | STRLEN len; |
5496 | ||
5497 | if (!sv) | |
5498 | return; | |
5499 | ||
dfe13c55 | 5500 | s = (U8*)SvPV(sv, len); |
eb160463 | 5501 | if ((I32)len < *offsetp) |
a0dbb045 | 5502 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
a0ed51b3 LW |
5503 | send = s + *offsetp; |
5504 | len = 0; | |
5505 | while (s < send) { | |
cc07378b JH |
5506 | STRLEN n = 1; |
5507 | /* Call utf8n_to_uvchr() to validate the sequence | |
5508 | * (unless a simple non-UTF character) */ | |
5509 | if (!UTF8_IS_INVARIANT(*s)) | |
5510 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
2b9d42f0 | 5511 | if (n > 0) { |
a0dbb045 JH |
5512 | s += n; |
5513 | len++; | |
5514 | } | |
5515 | else | |
5516 | break; | |
a0ed51b3 LW |
5517 | } |
5518 | *offsetp = len; | |
5519 | return; | |
5520 | } | |
5521 | ||
954c1994 GS |
5522 | /* |
5523 | =for apidoc sv_eq | |
5524 | ||
5525 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
5526 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5527 | coerce its args to strings if necessary. | |
954c1994 GS |
5528 | |
5529 | =cut | |
5530 | */ | |
5531 | ||
79072805 | 5532 | I32 |
e01b9e88 | 5533 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 LW |
5534 | { |
5535 | char *pv1; | |
463ee0b2 | 5536 | STRLEN cur1; |
79072805 | 5537 | char *pv2; |
463ee0b2 | 5538 | STRLEN cur2; |
e01b9e88 | 5539 | I32 eq = 0; |
553e1bcc AT |
5540 | char *tpv = Nullch; |
5541 | SV* svrecode = Nullsv; | |
79072805 | 5542 | |
e01b9e88 | 5543 | if (!sv1) { |
79072805 LW |
5544 | pv1 = ""; |
5545 | cur1 = 0; | |
5546 | } | |
463ee0b2 | 5547 | else |
e01b9e88 | 5548 | pv1 = SvPV(sv1, cur1); |
79072805 | 5549 | |
e01b9e88 SC |
5550 | if (!sv2){ |
5551 | pv2 = ""; | |
5552 | cur2 = 0; | |
92d29cee | 5553 | } |
e01b9e88 SC |
5554 | else |
5555 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5556 | |
cf48d248 | 5557 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5558 | /* Differing utf8ness. |
5559 | * Do not UTF8size the comparands as a side-effect. */ | |
5560 | if (PL_encoding) { | |
5561 | if (SvUTF8(sv1)) { | |
553e1bcc AT |
5562 | svrecode = newSVpvn(pv2, cur2); |
5563 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5564 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
5565 | } |
5566 | else { | |
553e1bcc AT |
5567 | svrecode = newSVpvn(pv1, cur1); |
5568 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5569 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
5570 | } |
5571 | /* Now both are in UTF-8. */ | |
5572 | if (cur1 != cur2) | |
5573 | return FALSE; | |
5574 | } | |
5575 | else { | |
5576 | bool is_utf8 = TRUE; | |
5577 | ||
5578 | if (SvUTF8(sv1)) { | |
5579 | /* sv1 is the UTF-8 one, | |
5580 | * if is equal it must be downgrade-able */ | |
5581 | char *pv = (char*)bytes_from_utf8((U8*)pv1, | |
5582 | &cur1, &is_utf8); | |
5583 | if (pv != pv1) | |
553e1bcc | 5584 | pv1 = tpv = pv; |
799ef3cb JH |
5585 | } |
5586 | else { | |
5587 | /* sv2 is the UTF-8 one, | |
5588 | * if is equal it must be downgrade-able */ | |
5589 | char *pv = (char *)bytes_from_utf8((U8*)pv2, | |
5590 | &cur2, &is_utf8); | |
5591 | if (pv != pv2) | |
553e1bcc | 5592 | pv2 = tpv = pv; |
799ef3cb JH |
5593 | } |
5594 | if (is_utf8) { | |
5595 | /* Downgrade not possible - cannot be eq */ | |
5596 | return FALSE; | |
5597 | } | |
5598 | } | |
cf48d248 JH |
5599 | } |
5600 | ||
5601 | if (cur1 == cur2) | |
765f542d | 5602 | eq = (pv1 == pv2) || memEQ(pv1, pv2, cur1); |
e01b9e88 | 5603 | |
553e1bcc AT |
5604 | if (svrecode) |
5605 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5606 | |
553e1bcc AT |
5607 | if (tpv) |
5608 | Safefree(tpv); | |
cf48d248 | 5609 | |
e01b9e88 | 5610 | return eq; |
79072805 LW |
5611 | } |
5612 | ||
954c1994 GS |
5613 | /* |
5614 | =for apidoc sv_cmp | |
5615 | ||
5616 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
5617 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
5618 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5619 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
5620 | |
5621 | =cut | |
5622 | */ | |
5623 | ||
79072805 | 5624 | I32 |
e01b9e88 | 5625 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5626 | { |
560a288e | 5627 | STRLEN cur1, cur2; |
553e1bcc | 5628 | char *pv1, *pv2, *tpv = Nullch; |
cf48d248 | 5629 | I32 cmp; |
553e1bcc | 5630 | SV *svrecode = Nullsv; |
560a288e | 5631 | |
e01b9e88 SC |
5632 | if (!sv1) { |
5633 | pv1 = ""; | |
560a288e GS |
5634 | cur1 = 0; |
5635 | } | |
e01b9e88 SC |
5636 | else |
5637 | pv1 = SvPV(sv1, cur1); | |
560a288e | 5638 | |
553e1bcc | 5639 | if (!sv2) { |
e01b9e88 | 5640 | pv2 = ""; |
560a288e GS |
5641 | cur2 = 0; |
5642 | } | |
e01b9e88 SC |
5643 | else |
5644 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5645 | |
cf48d248 | 5646 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5647 | /* Differing utf8ness. |
5648 | * Do not UTF8size the comparands as a side-effect. */ | |
cf48d248 | 5649 | if (SvUTF8(sv1)) { |
799ef3cb | 5650 | if (PL_encoding) { |
553e1bcc AT |
5651 | svrecode = newSVpvn(pv2, cur2); |
5652 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5653 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
5654 | } |
5655 | else { | |
553e1bcc | 5656 | pv2 = tpv = (char*)bytes_to_utf8((U8*)pv2, &cur2); |
799ef3cb | 5657 | } |
cf48d248 JH |
5658 | } |
5659 | else { | |
799ef3cb | 5660 | if (PL_encoding) { |
553e1bcc AT |
5661 | svrecode = newSVpvn(pv1, cur1); |
5662 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5663 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
5664 | } |
5665 | else { | |
553e1bcc | 5666 | pv1 = tpv = (char*)bytes_to_utf8((U8*)pv1, &cur1); |
799ef3cb | 5667 | } |
cf48d248 JH |
5668 | } |
5669 | } | |
5670 | ||
e01b9e88 | 5671 | if (!cur1) { |
cf48d248 | 5672 | cmp = cur2 ? -1 : 0; |
e01b9e88 | 5673 | } else if (!cur2) { |
cf48d248 JH |
5674 | cmp = 1; |
5675 | } else { | |
5676 | I32 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); | |
e01b9e88 SC |
5677 | |
5678 | if (retval) { | |
cf48d248 | 5679 | cmp = retval < 0 ? -1 : 1; |
e01b9e88 | 5680 | } else if (cur1 == cur2) { |
cf48d248 JH |
5681 | cmp = 0; |
5682 | } else { | |
5683 | cmp = cur1 < cur2 ? -1 : 1; | |
e01b9e88 | 5684 | } |
cf48d248 | 5685 | } |
16660edb | 5686 | |
553e1bcc AT |
5687 | if (svrecode) |
5688 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5689 | |
553e1bcc AT |
5690 | if (tpv) |
5691 | Safefree(tpv); | |
cf48d248 JH |
5692 | |
5693 | return cmp; | |
bbce6d69 | 5694 | } |
16660edb | 5695 | |
c461cf8f JH |
5696 | /* |
5697 | =for apidoc sv_cmp_locale | |
5698 | ||
645c22ef DM |
5699 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
5700 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
5701 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
5702 | |
5703 | =cut | |
5704 | */ | |
5705 | ||
bbce6d69 | 5706 | I32 |
864dbfa3 | 5707 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 5708 | { |
36477c24 | 5709 | #ifdef USE_LOCALE_COLLATE |
16660edb | 5710 | |
bbce6d69 | 5711 | char *pv1, *pv2; |
5712 | STRLEN len1, len2; | |
5713 | I32 retval; | |
16660edb | 5714 | |
3280af22 | 5715 | if (PL_collation_standard) |
bbce6d69 | 5716 | goto raw_compare; |
16660edb | 5717 | |
bbce6d69 | 5718 | len1 = 0; |
8ac85365 | 5719 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 5720 | len2 = 0; |
8ac85365 | 5721 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 5722 | |
bbce6d69 | 5723 | if (!pv1 || !len1) { |
5724 | if (pv2 && len2) | |
5725 | return -1; | |
5726 | else | |
5727 | goto raw_compare; | |
5728 | } | |
5729 | else { | |
5730 | if (!pv2 || !len2) | |
5731 | return 1; | |
5732 | } | |
16660edb | 5733 | |
bbce6d69 | 5734 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 5735 | |
bbce6d69 | 5736 | if (retval) |
16660edb | 5737 | return retval < 0 ? -1 : 1; |
5738 | ||
bbce6d69 | 5739 | /* |
5740 | * When the result of collation is equality, that doesn't mean | |
5741 | * that there are no differences -- some locales exclude some | |
5742 | * characters from consideration. So to avoid false equalities, | |
5743 | * we use the raw string as a tiebreaker. | |
5744 | */ | |
16660edb | 5745 | |
bbce6d69 | 5746 | raw_compare: |
5747 | /* FALL THROUGH */ | |
16660edb | 5748 | |
36477c24 | 5749 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 5750 | |
bbce6d69 | 5751 | return sv_cmp(sv1, sv2); |
5752 | } | |
79072805 | 5753 | |
645c22ef | 5754 | |
36477c24 | 5755 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 5756 | |
7a4c00b4 | 5757 | /* |
645c22ef DM |
5758 | =for apidoc sv_collxfrm |
5759 | ||
5760 | Add Collate Transform magic to an SV if it doesn't already have it. | |
5761 | ||
5762 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
5763 | scalar data of the variable, but transformed to such a format that a normal | |
5764 | memory comparison can be used to compare the data according to the locale | |
5765 | settings. | |
5766 | ||
5767 | =cut | |
5768 | */ | |
5769 | ||
bbce6d69 | 5770 | char * |
864dbfa3 | 5771 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 5772 | { |
7a4c00b4 | 5773 | MAGIC *mg; |
16660edb | 5774 | |
14befaf4 | 5775 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 5776 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 5777 | char *s, *xf; |
5778 | STRLEN len, xlen; | |
5779 | ||
7a4c00b4 | 5780 | if (mg) |
5781 | Safefree(mg->mg_ptr); | |
bbce6d69 | 5782 | s = SvPV(sv, len); |
5783 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 5784 | if (SvREADONLY(sv)) { |
5785 | SAVEFREEPV(xf); | |
5786 | *nxp = xlen; | |
3280af22 | 5787 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 5788 | } |
7a4c00b4 | 5789 | if (! mg) { |
14befaf4 DM |
5790 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
5791 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 5792 | assert(mg); |
bbce6d69 | 5793 | } |
7a4c00b4 | 5794 | mg->mg_ptr = xf; |
565764a8 | 5795 | mg->mg_len = xlen; |
7a4c00b4 | 5796 | } |
5797 | else { | |
ff0cee69 | 5798 | if (mg) { |
5799 | mg->mg_ptr = NULL; | |
565764a8 | 5800 | mg->mg_len = -1; |
ff0cee69 | 5801 | } |
bbce6d69 | 5802 | } |
5803 | } | |
7a4c00b4 | 5804 | if (mg && mg->mg_ptr) { |
565764a8 | 5805 | *nxp = mg->mg_len; |
3280af22 | 5806 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 5807 | } |
5808 | else { | |
5809 | *nxp = 0; | |
5810 | return NULL; | |
16660edb | 5811 | } |
79072805 LW |
5812 | } |
5813 | ||
36477c24 | 5814 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 5815 | |
c461cf8f JH |
5816 | /* |
5817 | =for apidoc sv_gets | |
5818 | ||
5819 | Get a line from the filehandle and store it into the SV, optionally | |
5820 | appending to the currently-stored string. | |
5821 | ||
5822 | =cut | |
5823 | */ | |
5824 | ||
79072805 | 5825 | char * |
864dbfa3 | 5826 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 5827 | { |
c07a80fd | 5828 | char *rsptr; |
5829 | STRLEN rslen; | |
5830 | register STDCHAR rslast; | |
5831 | register STDCHAR *bp; | |
5832 | register I32 cnt; | |
9c5ffd7c | 5833 | I32 i = 0; |
8bfdd7d9 | 5834 | I32 rspara = 0; |
c07a80fd | 5835 | |
765f542d NC |
5836 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
5837 | /* XXX. If you make this PVIV, then copy on write can copy scalars read | |
5838 | from <>. | |
5839 | However, perlbench says it's slower, because the existing swipe code | |
5840 | is faster than copy on write. | |
5841 | Swings and roundabouts. */ | |
6fc92669 | 5842 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 5843 | |
ff68c719 | 5844 | SvSCREAM_off(sv); |
c07a80fd | 5845 | |
8bfdd7d9 HS |
5846 | if (PL_curcop == &PL_compiling) { |
5847 | /* we always read code in line mode */ | |
5848 | rsptr = "\n"; | |
5849 | rslen = 1; | |
5850 | } | |
5851 | else if (RsSNARF(PL_rs)) { | |
c07a80fd | 5852 | rsptr = NULL; |
5853 | rslen = 0; | |
5854 | } | |
3280af22 | 5855 | else if (RsRECORD(PL_rs)) { |
5b2b9c68 HM |
5856 | I32 recsize, bytesread; |
5857 | char *buffer; | |
5858 | ||
5859 | /* Grab the size of the record we're getting */ | |
3280af22 | 5860 | recsize = SvIV(SvRV(PL_rs)); |
5b2b9c68 | 5861 | (void)SvPOK_only(sv); /* Validate pointer */ |
eb160463 | 5862 | buffer = SvGROW(sv, (STRLEN)(recsize + 1)); |
5b2b9c68 HM |
5863 | /* Go yank in */ |
5864 | #ifdef VMS | |
5865 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
5866 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
5867 | /* doing, but we've got no other real choice */ | |
5868 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); | |
5869 | #else | |
5870 | bytesread = PerlIO_read(fp, buffer, recsize); | |
5871 | #endif | |
5872 | SvCUR_set(sv, bytesread); | |
e670df4e | 5873 | buffer[bytesread] = '\0'; |
7d59b7e4 NIS |
5874 | if (PerlIO_isutf8(fp)) |
5875 | SvUTF8_on(sv); | |
5876 | else | |
5877 | SvUTF8_off(sv); | |
5b2b9c68 HM |
5878 | return(SvCUR(sv) ? SvPVX(sv) : Nullch); |
5879 | } | |
3280af22 | 5880 | else if (RsPARA(PL_rs)) { |
c07a80fd | 5881 | rsptr = "\n\n"; |
5882 | rslen = 2; | |
8bfdd7d9 | 5883 | rspara = 1; |
c07a80fd | 5884 | } |
7d59b7e4 NIS |
5885 | else { |
5886 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
5887 | if (PerlIO_isutf8(fp)) { | |
5888 | rsptr = SvPVutf8(PL_rs, rslen); | |
5889 | } | |
5890 | else { | |
5891 | if (SvUTF8(PL_rs)) { | |
5892 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
5893 | Perl_croak(aTHX_ "Wide character in $/"); | |
5894 | } | |
5895 | } | |
5896 | rsptr = SvPV(PL_rs, rslen); | |
5897 | } | |
5898 | } | |
5899 | ||
c07a80fd | 5900 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
5901 | ||
8bfdd7d9 | 5902 | if (rspara) { /* have to do this both before and after */ |
79072805 | 5903 | do { /* to make sure file boundaries work right */ |
760ac839 | 5904 | if (PerlIO_eof(fp)) |
a0d0e21e | 5905 | return 0; |
760ac839 | 5906 | i = PerlIO_getc(fp); |
79072805 | 5907 | if (i != '\n') { |
a0d0e21e LW |
5908 | if (i == -1) |
5909 | return 0; | |
760ac839 | 5910 | PerlIO_ungetc(fp,i); |
79072805 LW |
5911 | break; |
5912 | } | |
5913 | } while (i != EOF); | |
5914 | } | |
c07a80fd | 5915 | |
760ac839 LW |
5916 | /* See if we know enough about I/O mechanism to cheat it ! */ |
5917 | ||
5918 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 5919 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
5920 | enough here - and may even be a macro allowing compile |
5921 | time optimization. | |
5922 | */ | |
5923 | ||
5924 | if (PerlIO_fast_gets(fp)) { | |
5925 | ||
5926 | /* | |
5927 | * We're going to steal some values from the stdio struct | |
5928 | * and put EVERYTHING in the innermost loop into registers. | |
5929 | */ | |
5930 | register STDCHAR *ptr; | |
5931 | STRLEN bpx; | |
5932 | I32 shortbuffered; | |
5933 | ||
16660edb | 5934 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
5935 | /* An ungetc()d char is handled separately from the regular | |
5936 | * buffer, so we getc() it back out and stuff it in the buffer. | |
5937 | */ | |
5938 | i = PerlIO_getc(fp); | |
5939 | if (i == EOF) return 0; | |
5940 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
5941 | (*fp)->_cnt++; | |
5942 | #endif | |
c07a80fd | 5943 | |
c2960299 | 5944 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 5945 | |
a20bf0c3 | 5946 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
a0d0e21e | 5947 | (void)SvPOK_only(sv); /* validate pointer */ |
eb160463 GS |
5948 | if ((I32)(SvLEN(sv) - append) <= cnt + 1) { /* make sure we have the room */ |
5949 | if (cnt > 80 && (I32)SvLEN(sv) > append) { | |
79072805 LW |
5950 | shortbuffered = cnt - SvLEN(sv) + append + 1; |
5951 | cnt -= shortbuffered; | |
5952 | } | |
5953 | else { | |
5954 | shortbuffered = 0; | |
bbce6d69 | 5955 | /* remember that cnt can be negative */ |
eb160463 | 5956 | SvGROW(sv, (STRLEN)(append + (cnt <= 0 ? 2 : (cnt + 1)))); |
79072805 LW |
5957 | } |
5958 | } | |
5959 | else | |
5960 | shortbuffered = 0; | |
c07a80fd | 5961 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 5962 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 5963 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5964 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 5965 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
ba7abf9d | 5966 | "Screamer: entering: PerlIO * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5967 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5968 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
5969 | for (;;) { |
5970 | screamer: | |
93a17b20 | 5971 | if (cnt > 0) { |
c07a80fd | 5972 | if (rslen) { |
760ac839 LW |
5973 | while (cnt > 0) { /* this | eat */ |
5974 | cnt--; | |
c07a80fd | 5975 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
5976 | goto thats_all_folks; /* screams | sed :-) */ | |
5977 | } | |
5978 | } | |
5979 | else { | |
1c846c1f NIS |
5980 | Copy(ptr, bp, cnt, char); /* this | eat */ |
5981 | bp += cnt; /* screams | dust */ | |
c07a80fd | 5982 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 5983 | cnt = 0; |
93a17b20 | 5984 | } |
79072805 LW |
5985 | } |
5986 | ||
748a9306 | 5987 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
5988 | cnt = shortbuffered; |
5989 | shortbuffered = 0; | |
c07a80fd | 5990 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5991 | SvCUR_set(sv, bpx); |
5992 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 5993 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
5994 | continue; |
5995 | } | |
5996 | ||
16660edb | 5997 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
5998 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
5999 | PTR2UV(ptr),(long)cnt)); | |
cc00df79 | 6000 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* deregisterize cnt and ptr */ |
ba7abf9d | 6001 | #if 0 |
16660edb | 6002 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6003 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6004 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6005 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6006 | #endif |
1c846c1f | 6007 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 6008 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
6009 | another abstraction. */ | |
760ac839 | 6010 | i = PerlIO_getc(fp); /* get more characters */ |
ba7abf9d | 6011 | #if 0 |
16660edb | 6012 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6013 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6014 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6015 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6016 | #endif |
a20bf0c3 JH |
6017 | cnt = PerlIO_get_cnt(fp); |
6018 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 6019 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6020 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 6021 | |
748a9306 LW |
6022 | if (i == EOF) /* all done for ever? */ |
6023 | goto thats_really_all_folks; | |
6024 | ||
c07a80fd | 6025 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
6026 | SvCUR_set(sv, bpx); |
6027 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 6028 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
6029 | ||
eb160463 | 6030 | *bp++ = (STDCHAR)i; /* store character from PerlIO_getc */ |
79072805 | 6031 | |
c07a80fd | 6032 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 6033 | goto thats_all_folks; |
79072805 LW |
6034 | } |
6035 | ||
6036 | thats_all_folks: | |
eb160463 | 6037 | if ((rslen > 1 && (STRLEN)(bp - (STDCHAR*)SvPVX(sv)) < rslen) || |
36477c24 | 6038 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 6039 | goto screamer; /* go back to the fray */ |
79072805 LW |
6040 | thats_really_all_folks: |
6041 | if (shortbuffered) | |
6042 | cnt += shortbuffered; | |
16660edb | 6043 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6044 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
cc00df79 | 6045 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 6046 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6047 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6048 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6049 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 6050 | *bp = '\0'; |
760ac839 | 6051 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 6052 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 6053 | "Screamer: done, len=%ld, string=|%.*s|\n", |
6054 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
6055 | } |
6056 | else | |
79072805 | 6057 | { |
4d2c4e07 | 6058 | #ifndef EPOC |
760ac839 | 6059 | /*The big, slow, and stupid way */ |
c07a80fd | 6060 | STDCHAR buf[8192]; |
4d2c4e07 OF |
6061 | #else |
6062 | /* Need to work around EPOC SDK features */ | |
6063 | /* On WINS: MS VC5 generates calls to _chkstk, */ | |
6064 | /* if a `large' stack frame is allocated */ | |
6065 | /* gcc on MARM does not generate calls like these */ | |
6066 | STDCHAR buf[1024]; | |
6067 | #endif | |
79072805 | 6068 | |
760ac839 | 6069 | screamer2: |
c07a80fd | 6070 | if (rslen) { |
760ac839 LW |
6071 | register STDCHAR *bpe = buf + sizeof(buf); |
6072 | bp = buf; | |
eb160463 | 6073 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = (STDCHAR)i) != rslast && bp < bpe) |
760ac839 LW |
6074 | ; /* keep reading */ |
6075 | cnt = bp - buf; | |
c07a80fd | 6076 | } |
6077 | else { | |
760ac839 | 6078 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 6079 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
6080 | * both args of ?: operator, causing EOF to change into 255 | |
6081 | */ | |
37be0adf | 6082 | if (cnt > 0) |
cbe9e203 JH |
6083 | i = (U8)buf[cnt - 1]; |
6084 | else | |
37be0adf | 6085 | i = EOF; |
c07a80fd | 6086 | } |
79072805 | 6087 | |
cbe9e203 JH |
6088 | if (cnt < 0) |
6089 | cnt = 0; /* we do need to re-set the sv even when cnt <= 0 */ | |
6090 | if (append) | |
6091 | sv_catpvn(sv, (char *) buf, cnt); | |
6092 | else | |
6093 | sv_setpvn(sv, (char *) buf, cnt); | |
c07a80fd | 6094 | |
6095 | if (i != EOF && /* joy */ | |
6096 | (!rslen || | |
6097 | SvCUR(sv) < rslen || | |
36477c24 | 6098 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
6099 | { |
6100 | append = -1; | |
63e4d877 CS |
6101 | /* |
6102 | * If we're reading from a TTY and we get a short read, | |
6103 | * indicating that the user hit his EOF character, we need | |
6104 | * to notice it now, because if we try to read from the TTY | |
6105 | * again, the EOF condition will disappear. | |
6106 | * | |
6107 | * The comparison of cnt to sizeof(buf) is an optimization | |
6108 | * that prevents unnecessary calls to feof(). | |
6109 | * | |
6110 | * - jik 9/25/96 | |
6111 | */ | |
6112 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
6113 | goto screamer2; | |
79072805 LW |
6114 | } |
6115 | } | |
6116 | ||
8bfdd7d9 | 6117 | if (rspara) { /* have to do this both before and after */ |
c07a80fd | 6118 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 6119 | i = PerlIO_getc(fp); |
79072805 | 6120 | if (i != '\n') { |
760ac839 | 6121 | PerlIO_ungetc(fp,i); |
79072805 LW |
6122 | break; |
6123 | } | |
6124 | } | |
6125 | } | |
c07a80fd | 6126 | |
7d59b7e4 NIS |
6127 | if (PerlIO_isutf8(fp)) |
6128 | SvUTF8_on(sv); | |
6129 | else | |
6130 | SvUTF8_off(sv); | |
6131 | ||
c07a80fd | 6132 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
6133 | } |
6134 | ||
954c1994 GS |
6135 | /* |
6136 | =for apidoc sv_inc | |
6137 | ||
645c22ef DM |
6138 | Auto-increment of the value in the SV, doing string to numeric conversion |
6139 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6140 | |
6141 | =cut | |
6142 | */ | |
6143 | ||
79072805 | 6144 | void |
864dbfa3 | 6145 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
6146 | { |
6147 | register char *d; | |
463ee0b2 | 6148 | int flags; |
79072805 LW |
6149 | |
6150 | if (!sv) | |
6151 | return; | |
b23a5f78 GB |
6152 | if (SvGMAGICAL(sv)) |
6153 | mg_get(sv); | |
ed6116ce | 6154 | if (SvTHINKFIRST(sv)) { |
765f542d NC |
6155 | if (SvIsCOW(sv)) |
6156 | sv_force_normal_flags(sv, 0); | |
0f15f207 | 6157 | if (SvREADONLY(sv)) { |
3280af22 | 6158 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 6159 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6160 | } |
a0d0e21e | 6161 | if (SvROK(sv)) { |
b5be31e9 | 6162 | IV i; |
9e7bc3e8 JD |
6163 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
6164 | return; | |
56431972 | 6165 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6166 | sv_unref(sv); |
6167 | sv_setiv(sv, i); | |
a0d0e21e | 6168 | } |
ed6116ce | 6169 | } |
8990e307 | 6170 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6171 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
6172 | /* It's (privately or publicly) a float, but not tested as an | |
6173 | integer, so test it to see. */ | |
d460ef45 | 6174 | (void) SvIV(sv); |
28e5dec8 JH |
6175 | flags = SvFLAGS(sv); |
6176 | } | |
6177 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
6178 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6179 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6180 | oops_its_int: |
59d8ce62 | 6181 | #endif |
25da4f38 IZ |
6182 | if (SvIsUV(sv)) { |
6183 | if (SvUVX(sv) == UV_MAX) | |
a1e868e7 | 6184 | sv_setnv(sv, UV_MAX_P1); |
25da4f38 IZ |
6185 | else |
6186 | (void)SvIOK_only_UV(sv); | |
6187 | ++SvUVX(sv); | |
6188 | } else { | |
6189 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 6190 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
6191 | else { |
6192 | (void)SvIOK_only(sv); | |
6193 | ++SvIVX(sv); | |
1c846c1f | 6194 | } |
55497cff | 6195 | } |
79072805 LW |
6196 | return; |
6197 | } | |
28e5dec8 JH |
6198 | if (flags & SVp_NOK) { |
6199 | (void)SvNOK_only(sv); | |
6200 | SvNVX(sv) += 1.0; | |
6201 | return; | |
6202 | } | |
6203 | ||
8990e307 | 6204 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
28e5dec8 JH |
6205 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
6206 | sv_upgrade(sv, SVt_IV); | |
6207 | (void)SvIOK_only(sv); | |
6208 | SvIVX(sv) = 1; | |
79072805 LW |
6209 | return; |
6210 | } | |
463ee0b2 | 6211 | d = SvPVX(sv); |
79072805 LW |
6212 | while (isALPHA(*d)) d++; |
6213 | while (isDIGIT(*d)) d++; | |
6214 | if (*d) { | |
28e5dec8 | 6215 | #ifdef PERL_PRESERVE_IVUV |
d1be9408 | 6216 | /* Got to punt this as an integer if needs be, but we don't issue |
28e5dec8 JH |
6217 | warnings. Probably ought to make the sv_iv_please() that does |
6218 | the conversion if possible, and silently. */ | |
c2988b20 | 6219 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6220 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6221 | /* Need to try really hard to see if it's an integer. | |
6222 | 9.22337203685478e+18 is an integer. | |
6223 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6224 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
6225 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
6226 | or we go insane. */ | |
d460ef45 | 6227 | |
28e5dec8 JH |
6228 | (void) sv_2iv(sv); |
6229 | if (SvIOK(sv)) | |
6230 | goto oops_its_int; | |
6231 | ||
6232 | /* sv_2iv *should* have made this an NV */ | |
6233 | if (flags & SVp_NOK) { | |
6234 | (void)SvNOK_only(sv); | |
6235 | SvNVX(sv) += 1.0; | |
6236 | return; | |
6237 | } | |
6238 | /* I don't think we can get here. Maybe I should assert this | |
6239 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6240 | Fall through. */ | |
6241 | #if defined(USE_LONG_DOUBLE) | |
6242 | 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", | |
6243 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6244 | #else | |
1779d84d | 6245 | 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 |
6246 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
6247 | #endif | |
6248 | } | |
6249 | #endif /* PERL_PRESERVE_IVUV */ | |
6250 | sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); | |
79072805 LW |
6251 | return; |
6252 | } | |
6253 | d--; | |
463ee0b2 | 6254 | while (d >= SvPVX(sv)) { |
79072805 LW |
6255 | if (isDIGIT(*d)) { |
6256 | if (++*d <= '9') | |
6257 | return; | |
6258 | *(d--) = '0'; | |
6259 | } | |
6260 | else { | |
9d116dd7 JH |
6261 | #ifdef EBCDIC |
6262 | /* MKS: The original code here died if letters weren't consecutive. | |
6263 | * at least it didn't have to worry about non-C locales. The | |
6264 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 6265 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
6266 | * [A-Za-z] are accepted by isALPHA in the C locale. |
6267 | */ | |
6268 | if (*d != 'z' && *d != 'Z') { | |
6269 | do { ++*d; } while (!isALPHA(*d)); | |
6270 | return; | |
6271 | } | |
6272 | *(d--) -= 'z' - 'a'; | |
6273 | #else | |
79072805 LW |
6274 | ++*d; |
6275 | if (isALPHA(*d)) | |
6276 | return; | |
6277 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 6278 | #endif |
79072805 LW |
6279 | } |
6280 | } | |
6281 | /* oh,oh, the number grew */ | |
6282 | SvGROW(sv, SvCUR(sv) + 2); | |
6283 | SvCUR(sv)++; | |
463ee0b2 | 6284 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
6285 | *d = d[-1]; |
6286 | if (isDIGIT(d[1])) | |
6287 | *d = '1'; | |
6288 | else | |
6289 | *d = d[1]; | |
6290 | } | |
6291 | ||
954c1994 GS |
6292 | /* |
6293 | =for apidoc sv_dec | |
6294 | ||
645c22ef DM |
6295 | Auto-decrement of the value in the SV, doing string to numeric conversion |
6296 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6297 | |
6298 | =cut | |
6299 | */ | |
6300 | ||
79072805 | 6301 | void |
864dbfa3 | 6302 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 6303 | { |
463ee0b2 LW |
6304 | int flags; |
6305 | ||
79072805 LW |
6306 | if (!sv) |
6307 | return; | |
b23a5f78 GB |
6308 | if (SvGMAGICAL(sv)) |
6309 | mg_get(sv); | |
ed6116ce | 6310 | if (SvTHINKFIRST(sv)) { |
765f542d NC |
6311 | if (SvIsCOW(sv)) |
6312 | sv_force_normal_flags(sv, 0); | |
0f15f207 | 6313 | if (SvREADONLY(sv)) { |
3280af22 | 6314 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 6315 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6316 | } |
a0d0e21e | 6317 | if (SvROK(sv)) { |
b5be31e9 | 6318 | IV i; |
9e7bc3e8 JD |
6319 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
6320 | return; | |
56431972 | 6321 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6322 | sv_unref(sv); |
6323 | sv_setiv(sv, i); | |
a0d0e21e | 6324 | } |
ed6116ce | 6325 | } |
28e5dec8 JH |
6326 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
6327 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 6328 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6329 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
6330 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6331 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6332 | oops_its_int: |
59d8ce62 | 6333 | #endif |
25da4f38 IZ |
6334 | if (SvIsUV(sv)) { |
6335 | if (SvUVX(sv) == 0) { | |
6336 | (void)SvIOK_only(sv); | |
6337 | SvIVX(sv) = -1; | |
6338 | } | |
6339 | else { | |
6340 | (void)SvIOK_only_UV(sv); | |
6341 | --SvUVX(sv); | |
1c846c1f | 6342 | } |
25da4f38 IZ |
6343 | } else { |
6344 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 6345 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
6346 | else { |
6347 | (void)SvIOK_only(sv); | |
6348 | --SvIVX(sv); | |
1c846c1f | 6349 | } |
55497cff | 6350 | } |
6351 | return; | |
6352 | } | |
28e5dec8 JH |
6353 | if (flags & SVp_NOK) { |
6354 | SvNVX(sv) -= 1.0; | |
6355 | (void)SvNOK_only(sv); | |
6356 | return; | |
6357 | } | |
8990e307 | 6358 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
6359 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
6360 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 6361 | SvNVX(sv) = -1.0; |
a0d0e21e | 6362 | (void)SvNOK_only(sv); |
79072805 LW |
6363 | return; |
6364 | } | |
28e5dec8 JH |
6365 | #ifdef PERL_PRESERVE_IVUV |
6366 | { | |
c2988b20 | 6367 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6368 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6369 | /* Need to try really hard to see if it's an integer. | |
6370 | 9.22337203685478e+18 is an integer. | |
6371 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6372 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
6373 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
6374 | or we go insane. */ | |
d460ef45 | 6375 | |
28e5dec8 JH |
6376 | (void) sv_2iv(sv); |
6377 | if (SvIOK(sv)) | |
6378 | goto oops_its_int; | |
6379 | ||
6380 | /* sv_2iv *should* have made this an NV */ | |
6381 | if (flags & SVp_NOK) { | |
6382 | (void)SvNOK_only(sv); | |
6383 | SvNVX(sv) -= 1.0; | |
6384 | return; | |
6385 | } | |
6386 | /* I don't think we can get here. Maybe I should assert this | |
6387 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6388 | Fall through. */ | |
6389 | #if defined(USE_LONG_DOUBLE) | |
6390 | 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", | |
6391 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6392 | #else | |
1779d84d | 6393 | 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 |
6394 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
6395 | #endif | |
6396 | } | |
6397 | } | |
6398 | #endif /* PERL_PRESERVE_IVUV */ | |
097ee67d | 6399 | sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
6400 | } |
6401 | ||
954c1994 GS |
6402 | /* |
6403 | =for apidoc sv_mortalcopy | |
6404 | ||
645c22ef | 6405 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
d4236ebc DM |
6406 | The new SV is marked as mortal. It will be destroyed "soon", either by an |
6407 | explicit call to FREETMPS, or by an implicit call at places such as | |
6408 | statement boundaries. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
6409 | |
6410 | =cut | |
6411 | */ | |
6412 | ||
79072805 LW |
6413 | /* Make a string that will exist for the duration of the expression |
6414 | * evaluation. Actually, it may have to last longer than that, but | |
6415 | * hopefully we won't free it until it has been assigned to a | |
6416 | * permanent location. */ | |
6417 | ||
6418 | SV * | |
864dbfa3 | 6419 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 6420 | { |
463ee0b2 | 6421 | register SV *sv; |
b881518d | 6422 | |
4561caa4 | 6423 | new_SV(sv); |
79072805 | 6424 | sv_setsv(sv,oldstr); |
677b06e3 GS |
6425 | EXTEND_MORTAL(1); |
6426 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
6427 | SvTEMP_on(sv); |
6428 | return sv; | |
6429 | } | |
6430 | ||
954c1994 GS |
6431 | /* |
6432 | =for apidoc sv_newmortal | |
6433 | ||
645c22ef | 6434 | Creates a new null SV which is mortal. The reference count of the SV is |
d4236ebc DM |
6435 | set to 1. It will be destroyed "soon", either by an explicit call to |
6436 | FREETMPS, or by an implicit call at places such as statement boundaries. | |
6437 | See also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
6438 | |
6439 | =cut | |
6440 | */ | |
6441 | ||
8990e307 | 6442 | SV * |
864dbfa3 | 6443 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
6444 | { |
6445 | register SV *sv; | |
6446 | ||
4561caa4 | 6447 | new_SV(sv); |
8990e307 | 6448 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
6449 | EXTEND_MORTAL(1); |
6450 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
6451 | return sv; |
6452 | } | |
6453 | ||
954c1994 GS |
6454 | /* |
6455 | =for apidoc sv_2mortal | |
6456 | ||
d4236ebc DM |
6457 | Marks an existing SV as mortal. The SV will be destroyed "soon", either |
6458 | by an explicit call to FREETMPS, or by an implicit call at places such as | |
6459 | statement boundaries. See also C<sv_newmortal> and C<sv_mortalcopy>. | |
954c1994 GS |
6460 | |
6461 | =cut | |
6462 | */ | |
6463 | ||
79072805 | 6464 | SV * |
864dbfa3 | 6465 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 LW |
6466 | { |
6467 | if (!sv) | |
6468 | return sv; | |
d689ffdd | 6469 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 6470 | return sv; |
677b06e3 GS |
6471 | EXTEND_MORTAL(1); |
6472 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 6473 | SvTEMP_on(sv); |
79072805 LW |
6474 | return sv; |
6475 | } | |
6476 | ||
954c1994 GS |
6477 | /* |
6478 | =for apidoc newSVpv | |
6479 | ||
6480 | Creates a new SV and copies a string into it. The reference count for the | |
6481 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
6482 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
6483 | ||
6484 | =cut | |
6485 | */ | |
6486 | ||
79072805 | 6487 | SV * |
864dbfa3 | 6488 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 6489 | { |
463ee0b2 | 6490 | register SV *sv; |
79072805 | 6491 | |
4561caa4 | 6492 | new_SV(sv); |
79072805 LW |
6493 | if (!len) |
6494 | len = strlen(s); | |
6495 | sv_setpvn(sv,s,len); | |
6496 | return sv; | |
6497 | } | |
6498 | ||
954c1994 GS |
6499 | /* |
6500 | =for apidoc newSVpvn | |
6501 | ||
6502 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 6503 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 GS |
6504 | string. You are responsible for ensuring that the source string is at least |
6505 | C<len> bytes long. | |
6506 | ||
6507 | =cut | |
6508 | */ | |
6509 | ||
9da1e3b5 | 6510 | SV * |
864dbfa3 | 6511 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
6512 | { |
6513 | register SV *sv; | |
6514 | ||
6515 | new_SV(sv); | |
9da1e3b5 MUN |
6516 | sv_setpvn(sv,s,len); |
6517 | return sv; | |
6518 | } | |
6519 | ||
1c846c1f NIS |
6520 | /* |
6521 | =for apidoc newSVpvn_share | |
6522 | ||
645c22ef DM |
6523 | Creates a new SV with its SvPVX pointing to a shared string in the string |
6524 | table. If the string does not already exist in the table, it is created | |
6525 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
6526 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
6527 | otherwise the hash is computed. The idea here is that as the string table | |
6528 | is used for shared hash keys these strings will have SvPVX == HeKEY and | |
6529 | hash lookup will avoid string compare. | |
1c846c1f NIS |
6530 | |
6531 | =cut | |
6532 | */ | |
6533 | ||
6534 | SV * | |
c3654f1a | 6535 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
6536 | { |
6537 | register SV *sv; | |
c3654f1a IH |
6538 | bool is_utf8 = FALSE; |
6539 | if (len < 0) { | |
77caf834 | 6540 | STRLEN tmplen = -len; |
c3654f1a | 6541 | is_utf8 = TRUE; |
75a54232 JH |
6542 | /* See the note in hv.c:hv_fetch() --jhi */ |
6543 | src = (char*)bytes_from_utf8((U8*)src, &tmplen, &is_utf8); | |
6544 | len = tmplen; | |
6545 | } | |
1c846c1f | 6546 | if (!hash) |
5afd6d42 | 6547 | PERL_HASH(hash, src, len); |
1c846c1f NIS |
6548 | new_SV(sv); |
6549 | sv_upgrade(sv, SVt_PVIV); | |
c3654f1a | 6550 | SvPVX(sv) = sharepvn(src, is_utf8?-len:len, hash); |
1c846c1f NIS |
6551 | SvCUR(sv) = len; |
6552 | SvUVX(sv) = hash; | |
6553 | SvLEN(sv) = 0; | |
6554 | SvREADONLY_on(sv); | |
6555 | SvFAKE_on(sv); | |
6556 | SvPOK_on(sv); | |
c3654f1a IH |
6557 | if (is_utf8) |
6558 | SvUTF8_on(sv); | |
1c846c1f NIS |
6559 | return sv; |
6560 | } | |
6561 | ||
645c22ef | 6562 | |
cea2e8a9 | 6563 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
6564 | |
6565 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
6566 | * version of the main function, (which may itself be aliased to us). | |
6567 | * Don't access this version directly. | |
6568 | */ | |
6569 | ||
46fc3d4c | 6570 | SV * |
cea2e8a9 | 6571 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 6572 | { |
cea2e8a9 | 6573 | dTHX; |
46fc3d4c | 6574 | register SV *sv; |
6575 | va_list args; | |
46fc3d4c | 6576 | va_start(args, pat); |
c5be433b | 6577 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 6578 | va_end(args); |
6579 | return sv; | |
6580 | } | |
cea2e8a9 | 6581 | #endif |
46fc3d4c | 6582 | |
954c1994 GS |
6583 | /* |
6584 | =for apidoc newSVpvf | |
6585 | ||
645c22ef | 6586 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
6587 | C<sprintf>. |
6588 | ||
6589 | =cut | |
6590 | */ | |
6591 | ||
cea2e8a9 GS |
6592 | SV * |
6593 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
6594 | { | |
6595 | register SV *sv; | |
6596 | va_list args; | |
cea2e8a9 | 6597 | va_start(args, pat); |
c5be433b | 6598 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
6599 | va_end(args); |
6600 | return sv; | |
6601 | } | |
46fc3d4c | 6602 | |
645c22ef DM |
6603 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
6604 | ||
79072805 | 6605 | SV * |
c5be433b GS |
6606 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
6607 | { | |
6608 | register SV *sv; | |
6609 | new_SV(sv); | |
6610 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
6611 | return sv; | |
6612 | } | |
6613 | ||
954c1994 GS |
6614 | /* |
6615 | =for apidoc newSVnv | |
6616 | ||
6617 | Creates a new SV and copies a floating point value into it. | |
6618 | The reference count for the SV is set to 1. | |
6619 | ||
6620 | =cut | |
6621 | */ | |
6622 | ||
c5be433b | 6623 | SV * |
65202027 | 6624 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 6625 | { |
463ee0b2 | 6626 | register SV *sv; |
79072805 | 6627 | |
4561caa4 | 6628 | new_SV(sv); |
79072805 LW |
6629 | sv_setnv(sv,n); |
6630 | return sv; | |
6631 | } | |
6632 | ||
954c1994 GS |
6633 | /* |
6634 | =for apidoc newSViv | |
6635 | ||
6636 | Creates a new SV and copies an integer into it. The reference count for the | |
6637 | SV is set to 1. | |
6638 | ||
6639 | =cut | |
6640 | */ | |
6641 | ||
79072805 | 6642 | SV * |
864dbfa3 | 6643 | Perl_newSViv(pTHX_ IV i) |
79072805 | 6644 | { |
463ee0b2 | 6645 | register SV *sv; |
79072805 | 6646 | |
4561caa4 | 6647 | new_SV(sv); |
79072805 LW |
6648 | sv_setiv(sv,i); |
6649 | return sv; | |
6650 | } | |
6651 | ||
954c1994 | 6652 | /* |
1a3327fb JH |
6653 | =for apidoc newSVuv |
6654 | ||
6655 | Creates a new SV and copies an unsigned integer into it. | |
6656 | The reference count for the SV is set to 1. | |
6657 | ||
6658 | =cut | |
6659 | */ | |
6660 | ||
6661 | SV * | |
6662 | Perl_newSVuv(pTHX_ UV u) | |
6663 | { | |
6664 | register SV *sv; | |
6665 | ||
6666 | new_SV(sv); | |
6667 | sv_setuv(sv,u); | |
6668 | return sv; | |
6669 | } | |
6670 | ||
6671 | /* | |
954c1994 GS |
6672 | =for apidoc newRV_noinc |
6673 | ||
6674 | Creates an RV wrapper for an SV. The reference count for the original | |
6675 | SV is B<not> incremented. | |
6676 | ||
6677 | =cut | |
6678 | */ | |
6679 | ||
2304df62 | 6680 | SV * |
864dbfa3 | 6681 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
6682 | { |
6683 | register SV *sv; | |
6684 | ||
4561caa4 | 6685 | new_SV(sv); |
2304df62 | 6686 | sv_upgrade(sv, SVt_RV); |
76e3520e | 6687 | SvTEMP_off(tmpRef); |
d689ffdd | 6688 | SvRV(sv) = tmpRef; |
2304df62 | 6689 | SvROK_on(sv); |
2304df62 AD |
6690 | return sv; |
6691 | } | |
6692 | ||
ff276b08 | 6693 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
6694 | * newRV_inc is in fact #defined to newRV in sv.h |
6695 | */ | |
6696 | ||
5f05dabc | 6697 | SV * |
864dbfa3 | 6698 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 6699 | { |
5f6447b6 | 6700 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 6701 | } |
5f05dabc | 6702 | |
954c1994 GS |
6703 | /* |
6704 | =for apidoc newSVsv | |
6705 | ||
6706 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 6707 | (Uses C<sv_setsv>). |
954c1994 GS |
6708 | |
6709 | =cut | |
6710 | */ | |
6711 | ||
79072805 | 6712 | SV * |
864dbfa3 | 6713 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 6714 | { |
463ee0b2 | 6715 | register SV *sv; |
79072805 LW |
6716 | |
6717 | if (!old) | |
6718 | return Nullsv; | |
8990e307 | 6719 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 | 6720 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 6721 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "semi-panic: attempt to dup freed string"); |
79072805 LW |
6722 | return Nullsv; |
6723 | } | |
4561caa4 | 6724 | new_SV(sv); |
ff68c719 | 6725 | if (SvTEMP(old)) { |
6726 | SvTEMP_off(old); | |
463ee0b2 | 6727 | sv_setsv(sv,old); |
ff68c719 | 6728 | SvTEMP_on(old); |
79072805 LW |
6729 | } |
6730 | else | |
463ee0b2 LW |
6731 | sv_setsv(sv,old); |
6732 | return sv; | |
79072805 LW |
6733 | } |
6734 | ||
645c22ef DM |
6735 | /* |
6736 | =for apidoc sv_reset | |
6737 | ||
6738 | Underlying implementation for the C<reset> Perl function. | |
6739 | Note that the perl-level function is vaguely deprecated. | |
6740 | ||
6741 | =cut | |
6742 | */ | |
6743 | ||
79072805 | 6744 | void |
864dbfa3 | 6745 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 LW |
6746 | { |
6747 | register HE *entry; | |
6748 | register GV *gv; | |
6749 | register SV *sv; | |
6750 | register I32 i; | |
6751 | register PMOP *pm; | |
6752 | register I32 max; | |
4802d5d7 | 6753 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 6754 | |
49d8d3a1 MB |
6755 | if (!stash) |
6756 | return; | |
6757 | ||
79072805 LW |
6758 | if (!*s) { /* reset ?? searches */ |
6759 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 6760 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
6761 | } |
6762 | return; | |
6763 | } | |
6764 | ||
6765 | /* reset variables */ | |
6766 | ||
6767 | if (!HvARRAY(stash)) | |
6768 | return; | |
463ee0b2 LW |
6769 | |
6770 | Zero(todo, 256, char); | |
79072805 | 6771 | while (*s) { |
4802d5d7 | 6772 | i = (unsigned char)*s; |
79072805 LW |
6773 | if (s[1] == '-') { |
6774 | s += 2; | |
6775 | } | |
4802d5d7 | 6776 | max = (unsigned char)*s++; |
79072805 | 6777 | for ( ; i <= max; i++) { |
463ee0b2 LW |
6778 | todo[i] = 1; |
6779 | } | |
a0d0e21e | 6780 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 6781 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
6782 | entry; |
6783 | entry = HeNEXT(entry)) | |
6784 | { | |
1edc1566 | 6785 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 6786 | continue; |
1edc1566 | 6787 | gv = (GV*)HeVAL(entry); |
79072805 | 6788 | sv = GvSV(gv); |
9e35f4b3 GS |
6789 | if (SvTHINKFIRST(sv)) { |
6790 | if (!SvREADONLY(sv) && SvROK(sv)) | |
6791 | sv_unref(sv); | |
6792 | continue; | |
6793 | } | |
a0d0e21e | 6794 | (void)SvOK_off(sv); |
79072805 LW |
6795 | if (SvTYPE(sv) >= SVt_PV) { |
6796 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
6797 | if (SvPVX(sv) != Nullch) |
6798 | *SvPVX(sv) = '\0'; | |
44a8e56a | 6799 | SvTAINT(sv); |
79072805 LW |
6800 | } |
6801 | if (GvAV(gv)) { | |
6802 | av_clear(GvAV(gv)); | |
6803 | } | |
44a8e56a | 6804 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 6805 | hv_clear(GvHV(gv)); |
fa6a1c44 | 6806 | #ifdef USE_ENVIRON_ARRAY |
4efc5df6 GS |
6807 | if (gv == PL_envgv |
6808 | # ifdef USE_ITHREADS | |
6809 | && PL_curinterp == aTHX | |
6810 | # endif | |
6811 | ) | |
6812 | { | |
79072805 | 6813 | environ[0] = Nullch; |
4efc5df6 | 6814 | } |
a0d0e21e | 6815 | #endif |
79072805 LW |
6816 | } |
6817 | } | |
6818 | } | |
6819 | } | |
6820 | } | |
6821 | ||
645c22ef DM |
6822 | /* |
6823 | =for apidoc sv_2io | |
6824 | ||
6825 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
6826 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
6827 | named after the PV if we're a string. | |
6828 | ||
6829 | =cut | |
6830 | */ | |
6831 | ||
46fc3d4c | 6832 | IO* |
864dbfa3 | 6833 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 6834 | { |
6835 | IO* io; | |
6836 | GV* gv; | |
2d8e6c8d | 6837 | STRLEN n_a; |
46fc3d4c | 6838 | |
6839 | switch (SvTYPE(sv)) { | |
6840 | case SVt_PVIO: | |
6841 | io = (IO*)sv; | |
6842 | break; | |
6843 | case SVt_PVGV: | |
6844 | gv = (GV*)sv; | |
6845 | io = GvIO(gv); | |
6846 | if (!io) | |
cea2e8a9 | 6847 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 6848 | break; |
6849 | default: | |
6850 | if (!SvOK(sv)) | |
cea2e8a9 | 6851 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 6852 | if (SvROK(sv)) |
6853 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 6854 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 6855 | if (gv) |
6856 | io = GvIO(gv); | |
6857 | else | |
6858 | io = 0; | |
6859 | if (!io) | |
cea2e8a9 | 6860 | Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a)); |
46fc3d4c | 6861 | break; |
6862 | } | |
6863 | return io; | |
6864 | } | |
6865 | ||
645c22ef DM |
6866 | /* |
6867 | =for apidoc sv_2cv | |
6868 | ||
6869 | Using various gambits, try to get a CV from an SV; in addition, try if | |
6870 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
6871 | ||
6872 | =cut | |
6873 | */ | |
6874 | ||
79072805 | 6875 | CV * |
864dbfa3 | 6876 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 | 6877 | { |
c04a4dfe JH |
6878 | GV *gv = Nullgv; |
6879 | CV *cv = Nullcv; | |
2d8e6c8d | 6880 | STRLEN n_a; |
79072805 LW |
6881 | |
6882 | if (!sv) | |
93a17b20 | 6883 | return *gvp = Nullgv, Nullcv; |
79072805 | 6884 | switch (SvTYPE(sv)) { |
79072805 LW |
6885 | case SVt_PVCV: |
6886 | *st = CvSTASH(sv); | |
6887 | *gvp = Nullgv; | |
6888 | return (CV*)sv; | |
6889 | case SVt_PVHV: | |
6890 | case SVt_PVAV: | |
6891 | *gvp = Nullgv; | |
6892 | return Nullcv; | |
8990e307 LW |
6893 | case SVt_PVGV: |
6894 | gv = (GV*)sv; | |
a0d0e21e | 6895 | *gvp = gv; |
8990e307 LW |
6896 | *st = GvESTASH(gv); |
6897 | goto fix_gv; | |
6898 | ||
79072805 | 6899 | default: |
a0d0e21e LW |
6900 | if (SvGMAGICAL(sv)) |
6901 | mg_get(sv); | |
6902 | if (SvROK(sv)) { | |
f5284f61 IZ |
6903 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
6904 | tryAMAGICunDEREF(to_cv); | |
6905 | ||
62f274bf GS |
6906 | sv = SvRV(sv); |
6907 | if (SvTYPE(sv) == SVt_PVCV) { | |
6908 | cv = (CV*)sv; | |
6909 | *gvp = Nullgv; | |
6910 | *st = CvSTASH(cv); | |
6911 | return cv; | |
6912 | } | |
6913 | else if(isGV(sv)) | |
6914 | gv = (GV*)sv; | |
6915 | else | |
cea2e8a9 | 6916 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 6917 | } |
62f274bf | 6918 | else if (isGV(sv)) |
79072805 LW |
6919 | gv = (GV*)sv; |
6920 | else | |
2d8e6c8d | 6921 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
6922 | *gvp = gv; |
6923 | if (!gv) | |
6924 | return Nullcv; | |
6925 | *st = GvESTASH(gv); | |
8990e307 | 6926 | fix_gv: |
8ebc5c01 | 6927 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 6928 | SV *tmpsv; |
748a9306 | 6929 | ENTER; |
4633a7c4 | 6930 | tmpsv = NEWSV(704,0); |
16660edb | 6931 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
6932 | /* XXX this is probably not what they think they're getting. |
6933 | * It has the same effect as "sub name;", i.e. just a forward | |
6934 | * declaration! */ | |
774d564b | 6935 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
6936 | newSVOP(OP_CONST, 0, tmpsv), |
6937 | Nullop, | |
8990e307 | 6938 | Nullop); |
748a9306 | 6939 | LEAVE; |
8ebc5c01 | 6940 | if (!GvCVu(gv)) |
cea2e8a9 | 6941 | Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a)); |
8990e307 | 6942 | } |
8ebc5c01 | 6943 | return GvCVu(gv); |
79072805 LW |
6944 | } |
6945 | } | |
6946 | ||
c461cf8f JH |
6947 | /* |
6948 | =for apidoc sv_true | |
6949 | ||
6950 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
6951 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
6952 | instead use an in-line version. | |
c461cf8f JH |
6953 | |
6954 | =cut | |
6955 | */ | |
6956 | ||
79072805 | 6957 | I32 |
864dbfa3 | 6958 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 6959 | { |
8990e307 LW |
6960 | if (!sv) |
6961 | return 0; | |
79072805 | 6962 | if (SvPOK(sv)) { |
4e35701f NIS |
6963 | register XPV* tXpv; |
6964 | if ((tXpv = (XPV*)SvANY(sv)) && | |
c2f1de04 | 6965 | (tXpv->xpv_cur > 1 || |
4e35701f | 6966 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
6967 | return 1; |
6968 | else | |
6969 | return 0; | |
6970 | } | |
6971 | else { | |
6972 | if (SvIOK(sv)) | |
463ee0b2 | 6973 | return SvIVX(sv) != 0; |
79072805 LW |
6974 | else { |
6975 | if (SvNOK(sv)) | |
463ee0b2 | 6976 | return SvNVX(sv) != 0.0; |
79072805 | 6977 | else |
463ee0b2 | 6978 | return sv_2bool(sv); |
79072805 LW |
6979 | } |
6980 | } | |
6981 | } | |
79072805 | 6982 | |
645c22ef DM |
6983 | /* |
6984 | =for apidoc sv_iv | |
6985 | ||
6986 | A private implementation of the C<SvIVx> macro for compilers which can't | |
6987 | cope with complex macro expressions. Always use the macro instead. | |
6988 | ||
6989 | =cut | |
6990 | */ | |
6991 | ||
ff68c719 | 6992 | IV |
864dbfa3 | 6993 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 6994 | { |
25da4f38 IZ |
6995 | if (SvIOK(sv)) { |
6996 | if (SvIsUV(sv)) | |
6997 | return (IV)SvUVX(sv); | |
ff68c719 | 6998 | return SvIVX(sv); |
25da4f38 | 6999 | } |
ff68c719 | 7000 | return sv_2iv(sv); |
85e6fe83 | 7001 | } |
85e6fe83 | 7002 | |
645c22ef DM |
7003 | /* |
7004 | =for apidoc sv_uv | |
7005 | ||
7006 | A private implementation of the C<SvUVx> macro for compilers which can't | |
7007 | cope with complex macro expressions. Always use the macro instead. | |
7008 | ||
7009 | =cut | |
7010 | */ | |
7011 | ||
ff68c719 | 7012 | UV |
864dbfa3 | 7013 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 7014 | { |
25da4f38 IZ |
7015 | if (SvIOK(sv)) { |
7016 | if (SvIsUV(sv)) | |
7017 | return SvUVX(sv); | |
7018 | return (UV)SvIVX(sv); | |
7019 | } | |
ff68c719 | 7020 | return sv_2uv(sv); |
7021 | } | |
85e6fe83 | 7022 | |
645c22ef DM |
7023 | /* |
7024 | =for apidoc sv_nv | |
7025 | ||
7026 | A private implementation of the C<SvNVx> macro for compilers which can't | |
7027 | cope with complex macro expressions. Always use the macro instead. | |
7028 | ||
7029 | =cut | |
7030 | */ | |
7031 | ||
65202027 | 7032 | NV |
864dbfa3 | 7033 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 7034 | { |
ff68c719 | 7035 | if (SvNOK(sv)) |
7036 | return SvNVX(sv); | |
7037 | return sv_2nv(sv); | |
79072805 | 7038 | } |
79072805 | 7039 | |
645c22ef DM |
7040 | /* |
7041 | =for apidoc sv_pv | |
7042 | ||
baca2b92 | 7043 | Use the C<SvPV_nolen> macro instead |
645c22ef | 7044 | |
645c22ef DM |
7045 | =for apidoc sv_pvn |
7046 | ||
7047 | A private implementation of the C<SvPV> macro for compilers which can't | |
7048 | cope with complex macro expressions. Always use the macro instead. | |
7049 | ||
7050 | =cut | |
7051 | */ | |
7052 | ||
1fa8b10d | 7053 | char * |
864dbfa3 | 7054 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 7055 | { |
85e6fe83 LW |
7056 | if (SvPOK(sv)) { |
7057 | *lp = SvCUR(sv); | |
a0d0e21e | 7058 | return SvPVX(sv); |
85e6fe83 | 7059 | } |
463ee0b2 | 7060 | return sv_2pv(sv, lp); |
79072805 | 7061 | } |
79072805 | 7062 | |
6e9d1081 NC |
7063 | |
7064 | char * | |
7065 | Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp) | |
7066 | { | |
7067 | if (SvPOK(sv)) { | |
7068 | *lp = SvCUR(sv); | |
7069 | return SvPVX(sv); | |
7070 | } | |
7071 | return sv_2pv_flags(sv, lp, 0); | |
7072 | } | |
7073 | ||
c461cf8f JH |
7074 | /* |
7075 | =for apidoc sv_pvn_force | |
7076 | ||
7077 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
7078 | A private implementation of the C<SvPV_force> macro for compilers which |
7079 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f | 7080 | |
8d6d96c1 HS |
7081 | =for apidoc sv_pvn_force_flags |
7082 | ||
7083 | Get a sensible string out of the SV somehow. | |
7084 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
7085 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
7086 | implemented in terms of this function. | |
645c22ef DM |
7087 | You normally want to use the various wrapper macros instead: see |
7088 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
7089 | |
7090 | =cut | |
7091 | */ | |
7092 | ||
7093 | char * | |
7094 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
7095 | { | |
c04a4dfe | 7096 | char *s = NULL; |
a0d0e21e | 7097 | |
6fc92669 | 7098 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
765f542d | 7099 | sv_force_normal_flags(sv, 0); |
1c846c1f | 7100 | |
a0d0e21e LW |
7101 | if (SvPOK(sv)) { |
7102 | *lp = SvCUR(sv); | |
7103 | } | |
7104 | else { | |
748a9306 | 7105 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
cea2e8a9 | 7106 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
53e06cf0 | 7107 | OP_NAME(PL_op)); |
a0d0e21e | 7108 | } |
4633a7c4 | 7109 | else |
8d6d96c1 | 7110 | s = sv_2pv_flags(sv, lp, flags); |
a0d0e21e LW |
7111 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
7112 | STRLEN len = *lp; | |
1c846c1f | 7113 | |
a0d0e21e LW |
7114 | if (SvROK(sv)) |
7115 | sv_unref(sv); | |
7116 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
7117 | SvGROW(sv, len + 1); | |
7118 | Move(s,SvPVX(sv),len,char); | |
7119 | SvCUR_set(sv, len); | |
7120 | *SvEND(sv) = '\0'; | |
7121 | } | |
7122 | if (!SvPOK(sv)) { | |
7123 | SvPOK_on(sv); /* validate pointer */ | |
7124 | SvTAINT(sv); | |
1d7c1841 GS |
7125 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
7126 | PTR2UV(sv),SvPVX(sv))); | |
a0d0e21e LW |
7127 | } |
7128 | } | |
7129 | return SvPVX(sv); | |
7130 | } | |
7131 | ||
645c22ef DM |
7132 | /* |
7133 | =for apidoc sv_pvbyte | |
7134 | ||
baca2b92 | 7135 | Use C<SvPVbyte_nolen> instead. |
645c22ef | 7136 | |
645c22ef DM |
7137 | =for apidoc sv_pvbyten |
7138 | ||
7139 | A private implementation of the C<SvPVbyte> macro for compilers | |
7140 | which can't cope with complex macro expressions. Always use the macro | |
7141 | instead. | |
7142 | ||
7143 | =cut | |
7144 | */ | |
7145 | ||
7340a771 GS |
7146 | char * |
7147 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
7148 | { | |
ffebcc3e | 7149 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
7150 | return sv_pvn(sv,lp); |
7151 | } | |
7152 | ||
645c22ef DM |
7153 | /* |
7154 | =for apidoc sv_pvbyten_force | |
7155 | ||
7156 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
7157 | which can't cope with complex macro expressions. Always use the macro | |
7158 | instead. | |
7159 | ||
7160 | =cut | |
7161 | */ | |
7162 | ||
7340a771 GS |
7163 | char * |
7164 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
7165 | { | |
ffebcc3e | 7166 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
7167 | return sv_pvn_force(sv,lp); |
7168 | } | |
7169 | ||
645c22ef DM |
7170 | /* |
7171 | =for apidoc sv_pvutf8 | |
7172 | ||
baca2b92 | 7173 | Use the C<SvPVutf8_nolen> macro instead |
645c22ef | 7174 | |
645c22ef DM |
7175 | =for apidoc sv_pvutf8n |
7176 | ||
7177 | A private implementation of the C<SvPVutf8> macro for compilers | |
7178 | which can't cope with complex macro expressions. Always use the macro | |
7179 | instead. | |
7180 | ||
7181 | =cut | |
7182 | */ | |
7183 | ||
7340a771 GS |
7184 | char * |
7185 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
7186 | { | |
560a288e | 7187 | sv_utf8_upgrade(sv); |
7340a771 GS |
7188 | return sv_pvn(sv,lp); |
7189 | } | |
7190 | ||
c461cf8f JH |
7191 | /* |
7192 | =for apidoc sv_pvutf8n_force | |
7193 | ||
645c22ef DM |
7194 | A private implementation of the C<SvPVutf8_force> macro for compilers |
7195 | which can't cope with complex macro expressions. Always use the macro | |
7196 | instead. | |
c461cf8f JH |
7197 | |
7198 | =cut | |
7199 | */ | |
7200 | ||
7340a771 GS |
7201 | char * |
7202 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
7203 | { | |
560a288e | 7204 | sv_utf8_upgrade(sv); |
7340a771 GS |
7205 | return sv_pvn_force(sv,lp); |
7206 | } | |
7207 | ||
c461cf8f JH |
7208 | /* |
7209 | =for apidoc sv_reftype | |
7210 | ||
7211 | Returns a string describing what the SV is a reference to. | |
7212 | ||
7213 | =cut | |
7214 | */ | |
7215 | ||
7340a771 | 7216 | char * |
864dbfa3 | 7217 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e | 7218 | { |
c86bf373 AMS |
7219 | if (ob && SvOBJECT(sv)) { |
7220 | HV *svs = SvSTASH(sv); | |
7221 | /* [20011101.072] This bandaid for C<package;> should eventually | |
7222 | be removed. AMS 20011103 */ | |
7223 | return (svs ? HvNAME(svs) : "<none>"); | |
7224 | } | |
a0d0e21e LW |
7225 | else { |
7226 | switch (SvTYPE(sv)) { | |
7227 | case SVt_NULL: | |
7228 | case SVt_IV: | |
7229 | case SVt_NV: | |
7230 | case SVt_RV: | |
7231 | case SVt_PV: | |
7232 | case SVt_PVIV: | |
7233 | case SVt_PVNV: | |
7234 | case SVt_PVMG: | |
7235 | case SVt_PVBM: | |
439cb1c4 JP |
7236 | if (SvVOK(sv)) |
7237 | return "VSTRING"; | |
a0d0e21e LW |
7238 | if (SvROK(sv)) |
7239 | return "REF"; | |
7240 | else | |
7241 | return "SCALAR"; | |
7242 | case SVt_PVLV: return "LVALUE"; | |
7243 | case SVt_PVAV: return "ARRAY"; | |
7244 | case SVt_PVHV: return "HASH"; | |
7245 | case SVt_PVCV: return "CODE"; | |
7246 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 7247 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 7248 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
7249 | default: return "UNKNOWN"; |
7250 | } | |
7251 | } | |
7252 | } | |
7253 | ||
954c1994 GS |
7254 | /* |
7255 | =for apidoc sv_isobject | |
7256 | ||
7257 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
7258 | object. If the SV is not an RV, or if the object is not blessed, then this | |
7259 | will return false. | |
7260 | ||
7261 | =cut | |
7262 | */ | |
7263 | ||
463ee0b2 | 7264 | int |
864dbfa3 | 7265 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 7266 | { |
68dc0745 | 7267 | if (!sv) |
7268 | return 0; | |
7269 | if (SvGMAGICAL(sv)) | |
7270 | mg_get(sv); | |
85e6fe83 LW |
7271 | if (!SvROK(sv)) |
7272 | return 0; | |
7273 | sv = (SV*)SvRV(sv); | |
7274 | if (!SvOBJECT(sv)) | |
7275 | return 0; | |
7276 | return 1; | |
7277 | } | |
7278 | ||
954c1994 GS |
7279 | /* |
7280 | =for apidoc sv_isa | |
7281 | ||
7282 | Returns a boolean indicating whether the SV is blessed into the specified | |
7283 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
7284 | an inheritance relationship. | |
7285 | ||
7286 | =cut | |
7287 | */ | |
7288 | ||
85e6fe83 | 7289 | int |
864dbfa3 | 7290 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 7291 | { |
68dc0745 | 7292 | if (!sv) |
7293 | return 0; | |
7294 | if (SvGMAGICAL(sv)) | |
7295 | mg_get(sv); | |
ed6116ce | 7296 | if (!SvROK(sv)) |
463ee0b2 | 7297 | return 0; |
ed6116ce LW |
7298 | sv = (SV*)SvRV(sv); |
7299 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
7300 | return 0; |
7301 | ||
7302 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
7303 | } | |
7304 | ||
954c1994 GS |
7305 | /* |
7306 | =for apidoc newSVrv | |
7307 | ||
7308 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
7309 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
7310 | be blessed in the specified package. The new SV is returned and its | |
7311 | reference count is 1. | |
7312 | ||
7313 | =cut | |
7314 | */ | |
7315 | ||
463ee0b2 | 7316 | SV* |
864dbfa3 | 7317 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 7318 | { |
463ee0b2 LW |
7319 | SV *sv; |
7320 | ||
4561caa4 | 7321 | new_SV(sv); |
51cf62d8 | 7322 | |
765f542d | 7323 | SV_CHECK_THINKFIRST_COW_DROP(rv); |
51cf62d8 | 7324 | SvAMAGIC_off(rv); |
51cf62d8 | 7325 | |
0199fce9 JD |
7326 | if (SvTYPE(rv) >= SVt_PVMG) { |
7327 | U32 refcnt = SvREFCNT(rv); | |
7328 | SvREFCNT(rv) = 0; | |
7329 | sv_clear(rv); | |
7330 | SvFLAGS(rv) = 0; | |
7331 | SvREFCNT(rv) = refcnt; | |
7332 | } | |
7333 | ||
51cf62d8 | 7334 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
7335 | sv_upgrade(rv, SVt_RV); |
7336 | else if (SvTYPE(rv) > SVt_RV) { | |
7337 | (void)SvOOK_off(rv); | |
7338 | if (SvPVX(rv) && SvLEN(rv)) | |
7339 | Safefree(SvPVX(rv)); | |
7340 | SvCUR_set(rv, 0); | |
7341 | SvLEN_set(rv, 0); | |
7342 | } | |
51cf62d8 OT |
7343 | |
7344 | (void)SvOK_off(rv); | |
053fc874 | 7345 | SvRV(rv) = sv; |
ed6116ce | 7346 | SvROK_on(rv); |
463ee0b2 | 7347 | |
a0d0e21e LW |
7348 | if (classname) { |
7349 | HV* stash = gv_stashpv(classname, TRUE); | |
7350 | (void)sv_bless(rv, stash); | |
7351 | } | |
7352 | return sv; | |
7353 | } | |
7354 | ||
954c1994 GS |
7355 | /* |
7356 | =for apidoc sv_setref_pv | |
7357 | ||
7358 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
7359 | argument will be upgraded to an RV. That RV will be modified to point to | |
7360 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
7361 | into the SV. The C<classname> argument indicates the package for the | |
7362 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7363 | will be returned and will have a reference count of 1. | |
7364 | ||
7365 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
7366 | objects will become corrupted by the pointer copy process. | |
7367 | ||
7368 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
7369 | ||
7370 | =cut | |
7371 | */ | |
7372 | ||
a0d0e21e | 7373 | SV* |
864dbfa3 | 7374 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 7375 | { |
189b2af5 | 7376 | if (!pv) { |
3280af22 | 7377 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
7378 | SvSETMAGIC(rv); |
7379 | } | |
a0d0e21e | 7380 | else |
56431972 | 7381 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
7382 | return rv; |
7383 | } | |
7384 | ||
954c1994 GS |
7385 | /* |
7386 | =for apidoc sv_setref_iv | |
7387 | ||
7388 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
7389 | argument will be upgraded to an RV. That RV will be modified to point to | |
7390 | the new SV. The C<classname> argument indicates the package for the | |
7391 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7392 | will be returned and will have a reference count of 1. | |
7393 | ||
7394 | =cut | |
7395 | */ | |
7396 | ||
a0d0e21e | 7397 | SV* |
864dbfa3 | 7398 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
7399 | { |
7400 | sv_setiv(newSVrv(rv,classname), iv); | |
7401 | return rv; | |
7402 | } | |
7403 | ||
954c1994 | 7404 | /* |
e1c57cef JH |
7405 | =for apidoc sv_setref_uv |
7406 | ||
7407 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
7408 | argument will be upgraded to an RV. That RV will be modified to point to | |
7409 | the new SV. The C<classname> argument indicates the package for the | |
7410 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7411 | will be returned and will have a reference count of 1. | |
7412 | ||
7413 | =cut | |
7414 | */ | |
7415 | ||
7416 | SV* | |
7417 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
7418 | { | |
7419 | sv_setuv(newSVrv(rv,classname), uv); | |
7420 | return rv; | |
7421 | } | |
7422 | ||
7423 | /* | |
954c1994 GS |
7424 | =for apidoc sv_setref_nv |
7425 | ||
7426 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
7427 | argument will be upgraded to an RV. That RV will be modified to point to | |
7428 | the new SV. The C<classname> argument indicates the package for the | |
7429 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7430 | will be returned and will have a reference count of 1. | |
7431 | ||
7432 | =cut | |
7433 | */ | |
7434 | ||
a0d0e21e | 7435 | SV* |
65202027 | 7436 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
7437 | { |
7438 | sv_setnv(newSVrv(rv,classname), nv); | |
7439 | return rv; | |
7440 | } | |
463ee0b2 | 7441 | |
954c1994 GS |
7442 | /* |
7443 | =for apidoc sv_setref_pvn | |
7444 | ||
7445 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
7446 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
7447 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
7448 | argument indicates the package for the blessing. Set C<classname> to | |
7449 | C<Nullch> to avoid the blessing. The new SV will be returned and will have | |
7450 | a reference count of 1. | |
7451 | ||
7452 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
7453 | ||
7454 | =cut | |
7455 | */ | |
7456 | ||
a0d0e21e | 7457 | SV* |
864dbfa3 | 7458 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
7459 | { |
7460 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
7461 | return rv; |
7462 | } | |
7463 | ||
954c1994 GS |
7464 | /* |
7465 | =for apidoc sv_bless | |
7466 | ||
7467 | Blesses an SV into a specified package. The SV must be an RV. The package | |
7468 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
7469 | of the SV is unaffected. | |
7470 | ||
7471 | =cut | |
7472 | */ | |
7473 | ||
a0d0e21e | 7474 | SV* |
864dbfa3 | 7475 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 7476 | { |
76e3520e | 7477 | SV *tmpRef; |
a0d0e21e | 7478 | if (!SvROK(sv)) |
cea2e8a9 | 7479 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
7480 | tmpRef = SvRV(sv); |
7481 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
7482 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 7483 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
7484 | if (SvOBJECT(tmpRef)) { |
7485 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7486 | --PL_sv_objcount; |
76e3520e | 7487 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 7488 | } |
a0d0e21e | 7489 | } |
76e3520e GS |
7490 | SvOBJECT_on(tmpRef); |
7491 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7492 | ++PL_sv_objcount; |
76e3520e GS |
7493 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
7494 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e | 7495 | |
2e3febc6 CS |
7496 | if (Gv_AMG(stash)) |
7497 | SvAMAGIC_on(sv); | |
7498 | else | |
7499 | SvAMAGIC_off(sv); | |
a0d0e21e | 7500 | |
1edbfb88 AB |
7501 | if(SvSMAGICAL(tmpRef)) |
7502 | if(mg_find(tmpRef, PERL_MAGIC_ext) || mg_find(tmpRef, PERL_MAGIC_uvar)) | |
7503 | mg_set(tmpRef); | |
7504 | ||
7505 | ||
ecdeb87c | 7506 | |
a0d0e21e LW |
7507 | return sv; |
7508 | } | |
7509 | ||
645c22ef | 7510 | /* Downgrades a PVGV to a PVMG. |
645c22ef DM |
7511 | */ |
7512 | ||
76e3520e | 7513 | STATIC void |
cea2e8a9 | 7514 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 7515 | { |
850fabdf GS |
7516 | void *xpvmg; |
7517 | ||
a0d0e21e LW |
7518 | assert(SvTYPE(sv) == SVt_PVGV); |
7519 | SvFAKE_off(sv); | |
7520 | if (GvGP(sv)) | |
1edc1566 | 7521 | gp_free((GV*)sv); |
e826b3c7 GS |
7522 | if (GvSTASH(sv)) { |
7523 | SvREFCNT_dec(GvSTASH(sv)); | |
7524 | GvSTASH(sv) = Nullhv; | |
7525 | } | |
14befaf4 | 7526 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 7527 | Safefree(GvNAME(sv)); |
a5f75d66 | 7528 | GvMULTI_off(sv); |
850fabdf GS |
7529 | |
7530 | /* need to keep SvANY(sv) in the right arena */ | |
7531 | xpvmg = new_XPVMG(); | |
7532 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
7533 | del_XPVGV(SvANY(sv)); | |
7534 | SvANY(sv) = xpvmg; | |
7535 | ||
a0d0e21e LW |
7536 | SvFLAGS(sv) &= ~SVTYPEMASK; |
7537 | SvFLAGS(sv) |= SVt_PVMG; | |
7538 | } | |
7539 | ||
954c1994 | 7540 | /* |
840a7b70 | 7541 | =for apidoc sv_unref_flags |
954c1994 GS |
7542 | |
7543 | Unsets the RV status of the SV, and decrements the reference count of | |
7544 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
7545 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
7546 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
7547 | (otherwise the decrementing is conditional on the reference count being | |
7548 | different from one or the reference being a readonly SV). | |
7889fe52 | 7549 | See C<SvROK_off>. |
954c1994 GS |
7550 | |
7551 | =cut | |
7552 | */ | |
7553 | ||
ed6116ce | 7554 | void |
840a7b70 | 7555 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 7556 | { |
a0d0e21e | 7557 | SV* rv = SvRV(sv); |
810b8aa5 GS |
7558 | |
7559 | if (SvWEAKREF(sv)) { | |
7560 | sv_del_backref(sv); | |
7561 | SvWEAKREF_off(sv); | |
7562 | SvRV(sv) = 0; | |
7563 | return; | |
7564 | } | |
ed6116ce LW |
7565 | SvRV(sv) = 0; |
7566 | SvROK_off(sv); | |
765f542d | 7567 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv) || (flags & SV_IMMEDIATE_UNREF)) |
4633a7c4 | 7568 | SvREFCNT_dec(rv); |
840a7b70 | 7569 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 7570 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 7571 | } |
8990e307 | 7572 | |
840a7b70 IZ |
7573 | /* |
7574 | =for apidoc sv_unref | |
7575 | ||
7576 | Unsets the RV status of the SV, and decrements the reference count of | |
7577 | whatever was being referenced by the RV. This can almost be thought of | |
7578 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 7579 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
7580 | |
7581 | =cut | |
7582 | */ | |
7583 | ||
7584 | void | |
7585 | Perl_sv_unref(pTHX_ SV *sv) | |
7586 | { | |
7587 | sv_unref_flags(sv, 0); | |
7588 | } | |
7589 | ||
645c22ef DM |
7590 | /* |
7591 | =for apidoc sv_taint | |
7592 | ||
7593 | Taint an SV. Use C<SvTAINTED_on> instead. | |
7594 | =cut | |
7595 | */ | |
7596 | ||
bbce6d69 | 7597 | void |
864dbfa3 | 7598 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 7599 | { |
14befaf4 | 7600 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 7601 | } |
7602 | ||
645c22ef DM |
7603 | /* |
7604 | =for apidoc sv_untaint | |
7605 | ||
7606 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
7607 | =cut | |
7608 | */ | |
7609 | ||
bbce6d69 | 7610 | void |
864dbfa3 | 7611 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 7612 | { |
13f57bf8 | 7613 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7614 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 7615 | if (mg) |
565764a8 | 7616 | mg->mg_len &= ~1; |
36477c24 | 7617 | } |
bbce6d69 | 7618 | } |
7619 | ||
645c22ef DM |
7620 | /* |
7621 | =for apidoc sv_tainted | |
7622 | ||
7623 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
7624 | =cut | |
7625 | */ | |
7626 | ||
bbce6d69 | 7627 | bool |
864dbfa3 | 7628 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 7629 | { |
13f57bf8 | 7630 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7631 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 7632 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 7633 | return TRUE; |
7634 | } | |
7635 | return FALSE; | |
bbce6d69 | 7636 | } |
7637 | ||
cea2e8a9 | 7638 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7639 | |
7640 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7641 | * version of the main function, (which may itself be aliased to us). | |
7642 | * Don't access this version directly. | |
7643 | */ | |
7644 | ||
cea2e8a9 GS |
7645 | void |
7646 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
7647 | { | |
7648 | dTHX; | |
7649 | va_list args; | |
7650 | va_start(args, pat); | |
c5be433b | 7651 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
7652 | va_end(args); |
7653 | } | |
7654 | ||
645c22ef DM |
7655 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7656 | * version of the main function, (which may itself be aliased to us). | |
7657 | * Don't access this version directly. | |
7658 | */ | |
cea2e8a9 GS |
7659 | |
7660 | void | |
7661 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7662 | { | |
7663 | dTHX; | |
7664 | va_list args; | |
7665 | va_start(args, pat); | |
c5be433b | 7666 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 7667 | va_end(args); |
cea2e8a9 GS |
7668 | } |
7669 | #endif | |
7670 | ||
954c1994 GS |
7671 | /* |
7672 | =for apidoc sv_setpvf | |
7673 | ||
7674 | Processes its arguments like C<sprintf> and sets an SV to the formatted | |
7675 | output. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
7676 | ||
7677 | =cut | |
7678 | */ | |
7679 | ||
46fc3d4c | 7680 | void |
864dbfa3 | 7681 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7682 | { |
7683 | va_list args; | |
46fc3d4c | 7684 | va_start(args, pat); |
c5be433b | 7685 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 7686 | va_end(args); |
7687 | } | |
7688 | ||
645c22ef DM |
7689 | /* backend for C<sv_setpvf> and C<sv_setpvf_nocontext> */ |
7690 | ||
c5be433b GS |
7691 | void |
7692 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
7693 | { | |
7694 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7695 | } | |
ef50df4b | 7696 | |
954c1994 GS |
7697 | /* |
7698 | =for apidoc sv_setpvf_mg | |
7699 | ||
7700 | Like C<sv_setpvf>, but also handles 'set' magic. | |
7701 | ||
7702 | =cut | |
7703 | */ | |
7704 | ||
ef50df4b | 7705 | void |
864dbfa3 | 7706 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7707 | { |
7708 | va_list args; | |
ef50df4b | 7709 | va_start(args, pat); |
c5be433b | 7710 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 7711 | va_end(args); |
c5be433b GS |
7712 | } |
7713 | ||
645c22ef DM |
7714 | /* backend for C<sv_setpvf_mg> C<setpvf_mg_nocontext> */ |
7715 | ||
c5be433b GS |
7716 | void |
7717 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7718 | { | |
7719 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7720 | SvSETMAGIC(sv); |
7721 | } | |
7722 | ||
cea2e8a9 | 7723 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7724 | |
7725 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7726 | * version of the main function, (which may itself be aliased to us). | |
7727 | * Don't access this version directly. | |
7728 | */ | |
7729 | ||
cea2e8a9 GS |
7730 | void |
7731 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
7732 | { | |
7733 | dTHX; | |
7734 | va_list args; | |
7735 | va_start(args, pat); | |
c5be433b | 7736 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
7737 | va_end(args); |
7738 | } | |
7739 | ||
645c22ef DM |
7740 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7741 | * version of the main function, (which may itself be aliased to us). | |
7742 | * Don't access this version directly. | |
7743 | */ | |
7744 | ||
cea2e8a9 GS |
7745 | void |
7746 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7747 | { | |
7748 | dTHX; | |
7749 | va_list args; | |
7750 | va_start(args, pat); | |
c5be433b | 7751 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 7752 | va_end(args); |
cea2e8a9 GS |
7753 | } |
7754 | #endif | |
7755 | ||
954c1994 GS |
7756 | /* |
7757 | =for apidoc sv_catpvf | |
7758 | ||
d5ce4a7c GA |
7759 | Processes its arguments like C<sprintf> and appends the formatted |
7760 | output to an SV. If the appended data contains "wide" characters | |
7761 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
7762 | and characters >255 formatted with %c), the original SV might get | |
7763 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. | |
7764 | C<SvSETMAGIC()> must typically be called after calling this function | |
7765 | to handle 'set' magic. | |
954c1994 | 7766 | |
d5ce4a7c | 7767 | =cut */ |
954c1994 | 7768 | |
46fc3d4c | 7769 | void |
864dbfa3 | 7770 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7771 | { |
7772 | va_list args; | |
46fc3d4c | 7773 | va_start(args, pat); |
c5be433b | 7774 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 7775 | va_end(args); |
7776 | } | |
7777 | ||
645c22ef DM |
7778 | /* backend for C<sv_catpvf> and C<catpvf_mg_nocontext> */ |
7779 | ||
ef50df4b | 7780 | void |
c5be433b GS |
7781 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
7782 | { | |
7783 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7784 | } | |
7785 | ||
954c1994 GS |
7786 | /* |
7787 | =for apidoc sv_catpvf_mg | |
7788 | ||
7789 | Like C<sv_catpvf>, but also handles 'set' magic. | |
7790 | ||
7791 | =cut | |
7792 | */ | |
7793 | ||
c5be433b | 7794 | void |
864dbfa3 | 7795 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7796 | { |
7797 | va_list args; | |
ef50df4b | 7798 | va_start(args, pat); |
c5be433b | 7799 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 7800 | va_end(args); |
c5be433b GS |
7801 | } |
7802 | ||
645c22ef DM |
7803 | /* backend for C<catpvf_mg> and C<catpvf_mg_nocontext> */ |
7804 | ||
c5be433b GS |
7805 | void |
7806 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7807 | { | |
7808 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7809 | SvSETMAGIC(sv); |
7810 | } | |
7811 | ||
954c1994 GS |
7812 | /* |
7813 | =for apidoc sv_vsetpvfn | |
7814 | ||
7815 | Works like C<vcatpvfn> but copies the text into the SV instead of | |
7816 | appending it. | |
7817 | ||
645c22ef DM |
7818 | Usually used via one of its frontends C<sv_setpvf> and C<sv_setpvf_mg>. |
7819 | ||
954c1994 GS |
7820 | =cut |
7821 | */ | |
7822 | ||
46fc3d4c | 7823 | void |
7d5ea4e7 | 7824 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7825 | { |
7826 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 7827 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 7828 | } |
7829 | ||
645c22ef DM |
7830 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
7831 | ||
2d00ba3b | 7832 | STATIC I32 |
9dd79c3f | 7833 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
7834 | { |
7835 | I32 var = 0; | |
7836 | switch (**pattern) { | |
7837 | case '1': case '2': case '3': | |
7838 | case '4': case '5': case '6': | |
7839 | case '7': case '8': case '9': | |
7840 | while (isDIGIT(**pattern)) | |
7841 | var = var * 10 + (*(*pattern)++ - '0'); | |
7842 | } | |
7843 | return var; | |
7844 | } | |
9dd79c3f | 7845 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 7846 | |
954c1994 GS |
7847 | /* |
7848 | =for apidoc sv_vcatpvfn | |
7849 | ||
7850 | Processes its arguments like C<vsprintf> and appends the formatted output | |
7851 | to an SV. Uses an array of SVs if the C style variable argument list is | |
7852 | missing (NULL). When running with taint checks enabled, indicates via | |
7853 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
7854 | locales). | |
7855 | ||
645c22ef DM |
7856 | Usually used via one of its frontends C<sv_catpvf> and C<sv_catpvf_mg>. |
7857 | ||
954c1994 GS |
7858 | =cut |
7859 | */ | |
7860 | ||
46fc3d4c | 7861 | void |
7d5ea4e7 | 7862 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7863 | { |
7864 | char *p; | |
7865 | char *q; | |
7866 | char *patend; | |
fc36a67e | 7867 | STRLEN origlen; |
46fc3d4c | 7868 | I32 svix = 0; |
c635e13b | 7869 | static char nullstr[] = "(null)"; |
9c5ffd7c | 7870 | SV *argsv = Nullsv; |
2cf2cfc6 | 7871 | bool has_utf8 = FALSE; /* has the result utf8? */ |
46fc3d4c | 7872 | |
7873 | /* no matter what, this is a string now */ | |
fc36a67e | 7874 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 7875 | |
fc36a67e | 7876 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 7877 | if (patlen == 0) |
7878 | return; | |
fc36a67e | 7879 | if (patlen == 2 && pat[0] == '%') { |
7880 | switch (pat[1]) { | |
7881 | case 's': | |
c635e13b | 7882 | if (args) { |
7883 | char *s = va_arg(*args, char*); | |
7884 | sv_catpv(sv, s ? s : nullstr); | |
7885 | } | |
7e2040f0 | 7886 | else if (svix < svmax) { |
fc36a67e | 7887 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
7888 | if (DO_UTF8(*svargs)) |
7889 | SvUTF8_on(sv); | |
7890 | } | |
fc36a67e | 7891 | return; |
7892 | case '_': | |
7893 | if (args) { | |
7e2040f0 GS |
7894 | argsv = va_arg(*args, SV*); |
7895 | sv_catsv(sv, argsv); | |
7896 | if (DO_UTF8(argsv)) | |
7897 | SvUTF8_on(sv); | |
fc36a67e | 7898 | return; |
7899 | } | |
7900 | /* See comment on '_' below */ | |
7901 | break; | |
7902 | } | |
46fc3d4c | 7903 | } |
7904 | ||
2cf2cfc6 A |
7905 | if (!args && svix < svmax && DO_UTF8(*svargs)) |
7906 | has_utf8 = TRUE; | |
7907 | ||
46fc3d4c | 7908 | patend = (char*)pat + patlen; |
7909 | for (p = (char*)pat; p < patend; p = q) { | |
7910 | bool alt = FALSE; | |
7911 | bool left = FALSE; | |
b22c7a20 | 7912 | bool vectorize = FALSE; |
211dfcf1 | 7913 | bool vectorarg = FALSE; |
2cf2cfc6 | 7914 | bool vec_utf8 = FALSE; |
46fc3d4c | 7915 | char fill = ' '; |
7916 | char plus = 0; | |
7917 | char intsize = 0; | |
7918 | STRLEN width = 0; | |
fc36a67e | 7919 | STRLEN zeros = 0; |
46fc3d4c | 7920 | bool has_precis = FALSE; |
7921 | STRLEN precis = 0; | |
2cf2cfc6 | 7922 | bool is_utf8 = FALSE; /* is this item utf8? */ |
eb3fce90 | 7923 | |
46fc3d4c | 7924 | char esignbuf[4]; |
ad391ad9 | 7925 | U8 utf8buf[UTF8_MAXLEN+1]; |
46fc3d4c | 7926 | STRLEN esignlen = 0; |
7927 | ||
7928 | char *eptr = Nullch; | |
fc36a67e | 7929 | STRLEN elen = 0; |
089c015b JH |
7930 | /* Times 4: a decimal digit takes more than 3 binary digits. |
7931 | * NV_DIG: mantissa takes than many decimal digits. | |
7932 | * Plus 32: Playing safe. */ | |
7933 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
2d4389e4 JH |
7934 | /* large enough for "%#.#f" --chip */ |
7935 | /* what about long double NVs? --jhi */ | |
b22c7a20 | 7936 | |
81f715da | 7937 | SV *vecsv = Nullsv; |
a05b299f | 7938 | U8 *vecstr = Null(U8*); |
b22c7a20 | 7939 | STRLEN veclen = 0; |
934abaf1 | 7940 | char c = 0; |
46fc3d4c | 7941 | int i; |
9c5ffd7c | 7942 | unsigned base = 0; |
8c8eb53c RB |
7943 | IV iv = 0; |
7944 | UV uv = 0; | |
9e5b023a JH |
7945 | /* we need a long double target in case HAS_LONG_DOUBLE but |
7946 | not USE_LONG_DOUBLE | |
7947 | */ | |
35fff930 | 7948 | #if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE > DOUBLESIZE |
9e5b023a JH |
7949 | long double nv; |
7950 | #else | |
65202027 | 7951 | NV nv; |
9e5b023a | 7952 | #endif |
46fc3d4c | 7953 | STRLEN have; |
7954 | STRLEN need; | |
7955 | STRLEN gap; | |
b22c7a20 GS |
7956 | char *dotstr = "."; |
7957 | STRLEN dotstrlen = 1; | |
211dfcf1 | 7958 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 7959 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
7960 | I32 epix = 0; /* explicit precision index */ |
7961 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 7962 | bool asterisk = FALSE; |
46fc3d4c | 7963 | |
211dfcf1 | 7964 | /* echo everything up to the next format specification */ |
46fc3d4c | 7965 | for (q = p; q < patend && *q != '%'; ++q) ; |
7966 | if (q > p) { | |
7967 | sv_catpvn(sv, p, q - p); | |
7968 | p = q; | |
7969 | } | |
7970 | if (q++ >= patend) | |
7971 | break; | |
7972 | ||
211dfcf1 HS |
7973 | /* |
7974 | We allow format specification elements in this order: | |
7975 | \d+\$ explicit format parameter index | |
7976 | [-+ 0#]+ flags | |
a472f209 | 7977 | v|\*(\d+\$)?v vector with optional (optionally specified) arg |
211dfcf1 HS |
7978 | \d+|\*(\d+\$)? width using optional (optionally specified) arg |
7979 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
7980 | [hlqLV] size | |
7981 | [%bcdefginopsux_DFOUX] format (mandatory) | |
7982 | */ | |
7983 | if (EXPECT_NUMBER(q, width)) { | |
7984 | if (*q == '$') { | |
7985 | ++q; | |
7986 | efix = width; | |
7987 | } else { | |
7988 | goto gotwidth; | |
7989 | } | |
7990 | } | |
7991 | ||
fc36a67e | 7992 | /* FLAGS */ |
7993 | ||
46fc3d4c | 7994 | while (*q) { |
7995 | switch (*q) { | |
7996 | case ' ': | |
7997 | case '+': | |
7998 | plus = *q++; | |
7999 | continue; | |
8000 | ||
8001 | case '-': | |
8002 | left = TRUE; | |
8003 | q++; | |
8004 | continue; | |
8005 | ||
8006 | case '0': | |
8007 | fill = *q++; | |
8008 | continue; | |
8009 | ||
8010 | case '#': | |
8011 | alt = TRUE; | |
8012 | q++; | |
8013 | continue; | |
8014 | ||
fc36a67e | 8015 | default: |
8016 | break; | |
8017 | } | |
8018 | break; | |
8019 | } | |
46fc3d4c | 8020 | |
211dfcf1 | 8021 | tryasterisk: |
eb3fce90 | 8022 | if (*q == '*') { |
211dfcf1 HS |
8023 | q++; |
8024 | if (EXPECT_NUMBER(q, ewix)) | |
8025 | if (*q++ != '$') | |
8026 | goto unknown; | |
eb3fce90 | 8027 | asterisk = TRUE; |
211dfcf1 HS |
8028 | } |
8029 | if (*q == 'v') { | |
eb3fce90 | 8030 | q++; |
211dfcf1 HS |
8031 | if (vectorize) |
8032 | goto unknown; | |
9cbac4c7 | 8033 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
8034 | evix = ewix; |
8035 | ewix = 0; | |
8036 | asterisk = FALSE; | |
8037 | } | |
8038 | vectorize = TRUE; | |
8039 | goto tryasterisk; | |
eb3fce90 JH |
8040 | } |
8041 | ||
211dfcf1 HS |
8042 | if (!asterisk) |
8043 | EXPECT_NUMBER(q, width); | |
8044 | ||
8045 | if (vectorize) { | |
8046 | if (vectorarg) { | |
8047 | if (args) | |
8048 | vecsv = va_arg(*args, SV*); | |
8049 | else | |
8050 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
8051 | svargs[ewix ? ewix-1 : svix++] : &PL_sv_undef; | |
4459522c | 8052 | dotstr = SvPVx(vecsv, dotstrlen); |
211dfcf1 | 8053 | if (DO_UTF8(vecsv)) |
2cf2cfc6 | 8054 | is_utf8 = TRUE; |
211dfcf1 HS |
8055 | } |
8056 | if (args) { | |
8057 | vecsv = va_arg(*args, SV*); | |
8058 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 8059 | vec_utf8 = DO_UTF8(vecsv); |
eb3fce90 | 8060 | } |
211dfcf1 HS |
8061 | else if (efix ? efix <= svmax : svix < svmax) { |
8062 | vecsv = svargs[efix ? efix-1 : svix++]; | |
8063 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 8064 | vec_utf8 = DO_UTF8(vecsv); |
211dfcf1 HS |
8065 | } |
8066 | else { | |
8067 | vecstr = (U8*)""; | |
8068 | veclen = 0; | |
8069 | } | |
eb3fce90 | 8070 | } |
fc36a67e | 8071 | |
eb3fce90 | 8072 | if (asterisk) { |
fc36a67e | 8073 | if (args) |
8074 | i = va_arg(*args, int); | |
8075 | else | |
eb3fce90 JH |
8076 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
8077 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 8078 | left |= (i < 0); |
8079 | width = (i < 0) ? -i : i; | |
fc36a67e | 8080 | } |
211dfcf1 | 8081 | gotwidth: |
fc36a67e | 8082 | |
8083 | /* PRECISION */ | |
46fc3d4c | 8084 | |
fc36a67e | 8085 | if (*q == '.') { |
8086 | q++; | |
8087 | if (*q == '*') { | |
211dfcf1 | 8088 | q++; |
7b8dd722 HS |
8089 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') |
8090 | goto unknown; | |
8091 | /* XXX: todo, support specified precision parameter */ | |
8092 | if (epix) | |
211dfcf1 | 8093 | goto unknown; |
46fc3d4c | 8094 | if (args) |
8095 | i = va_arg(*args, int); | |
8096 | else | |
eb3fce90 JH |
8097 | i = (ewix ? ewix <= svmax : svix < svmax) |
8098 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 8099 | precis = (i < 0) ? 0 : i; |
fc36a67e | 8100 | } |
8101 | else { | |
8102 | precis = 0; | |
8103 | while (isDIGIT(*q)) | |
8104 | precis = precis * 10 + (*q++ - '0'); | |
8105 | } | |
8106 | has_precis = TRUE; | |
8107 | } | |
46fc3d4c | 8108 | |
fc36a67e | 8109 | /* SIZE */ |
46fc3d4c | 8110 | |
fc36a67e | 8111 | switch (*q) { |
c623ac67 GS |
8112 | #ifdef WIN32 |
8113 | case 'I': /* Ix, I32x, and I64x */ | |
8114 | # ifdef WIN64 | |
8115 | if (q[1] == '6' && q[2] == '4') { | |
8116 | q += 3; | |
8117 | intsize = 'q'; | |
8118 | break; | |
8119 | } | |
8120 | # endif | |
8121 | if (q[1] == '3' && q[2] == '2') { | |
8122 | q += 3; | |
8123 | break; | |
8124 | } | |
8125 | # ifdef WIN64 | |
8126 | intsize = 'q'; | |
8127 | # endif | |
8128 | q++; | |
8129 | break; | |
8130 | #endif | |
9e5b023a | 8131 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
6f9bb7fd | 8132 | case 'L': /* Ld */ |
e5c81feb | 8133 | /* FALL THROUGH */ |
e5c81feb | 8134 | #ifdef HAS_QUAD |
6f9bb7fd | 8135 | case 'q': /* qd */ |
9e5b023a | 8136 | #endif |
6f9bb7fd GS |
8137 | intsize = 'q'; |
8138 | q++; | |
8139 | break; | |
8140 | #endif | |
fc36a67e | 8141 | case 'l': |
9e5b023a | 8142 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
e5c81feb | 8143 | if (*(q + 1) == 'l') { /* lld, llf */ |
fc36a67e | 8144 | intsize = 'q'; |
8145 | q += 2; | |
46fc3d4c | 8146 | break; |
cf2093f6 | 8147 | } |
fc36a67e | 8148 | #endif |
6f9bb7fd | 8149 | /* FALL THROUGH */ |
fc36a67e | 8150 | case 'h': |
cf2093f6 | 8151 | /* FALL THROUGH */ |
fc36a67e | 8152 | case 'V': |
8153 | intsize = *q++; | |
46fc3d4c | 8154 | break; |
8155 | } | |
8156 | ||
fc36a67e | 8157 | /* CONVERSION */ |
8158 | ||
211dfcf1 HS |
8159 | if (*q == '%') { |
8160 | eptr = q++; | |
8161 | elen = 1; | |
8162 | goto string; | |
8163 | } | |
8164 | ||
be75b157 HS |
8165 | if (vectorize) |
8166 | argsv = vecsv; | |
8167 | else if (!args) | |
211dfcf1 HS |
8168 | argsv = (efix ? efix <= svmax : svix < svmax) ? |
8169 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
8170 | ||
46fc3d4c | 8171 | switch (c = *q++) { |
8172 | ||
8173 | /* STRINGS */ | |
8174 | ||
46fc3d4c | 8175 | case 'c': |
be75b157 | 8176 | uv = (args && !vectorize) ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
8177 | if ((uv > 255 || |
8178 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 8179 | && !IN_BYTES) { |
dfe13c55 | 8180 | eptr = (char*)utf8buf; |
9041c2e3 | 8181 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
2cf2cfc6 | 8182 | is_utf8 = TRUE; |
7e2040f0 GS |
8183 | } |
8184 | else { | |
8185 | c = (char)uv; | |
8186 | eptr = &c; | |
8187 | elen = 1; | |
a0ed51b3 | 8188 | } |
46fc3d4c | 8189 | goto string; |
8190 | ||
46fc3d4c | 8191 | case 's': |
be75b157 | 8192 | if (args && !vectorize) { |
fc36a67e | 8193 | eptr = va_arg(*args, char*); |
c635e13b | 8194 | if (eptr) |
1d7c1841 GS |
8195 | #ifdef MACOS_TRADITIONAL |
8196 | /* On MacOS, %#s format is used for Pascal strings */ | |
8197 | if (alt) | |
8198 | elen = *eptr++; | |
8199 | else | |
8200 | #endif | |
c635e13b | 8201 | elen = strlen(eptr); |
8202 | else { | |
8203 | eptr = nullstr; | |
8204 | elen = sizeof nullstr - 1; | |
8205 | } | |
46fc3d4c | 8206 | } |
211dfcf1 | 8207 | else { |
7e2040f0 GS |
8208 | eptr = SvPVx(argsv, elen); |
8209 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
8210 | if (has_precis && precis < elen) { |
8211 | I32 p = precis; | |
7e2040f0 | 8212 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
8213 | precis = p; |
8214 | } | |
8215 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 8216 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 8217 | } |
2cf2cfc6 | 8218 | is_utf8 = TRUE; |
a0ed51b3 LW |
8219 | } |
8220 | } | |
46fc3d4c | 8221 | goto string; |
8222 | ||
fc36a67e | 8223 | case '_': |
8224 | /* | |
8225 | * The "%_" hack might have to be changed someday, | |
8226 | * if ISO or ANSI decide to use '_' for something. | |
8227 | * So we keep it hidden from users' code. | |
8228 | */ | |
be75b157 | 8229 | if (!args || vectorize) |
fc36a67e | 8230 | goto unknown; |
211dfcf1 | 8231 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
8232 | eptr = SvPVx(argsv, elen); |
8233 | if (DO_UTF8(argsv)) | |
2cf2cfc6 | 8234 | is_utf8 = TRUE; |
fc36a67e | 8235 | |
46fc3d4c | 8236 | string: |
b22c7a20 | 8237 | vectorize = FALSE; |
46fc3d4c | 8238 | if (has_precis && elen > precis) |
8239 | elen = precis; | |
8240 | break; | |
8241 | ||
8242 | /* INTEGERS */ | |
8243 | ||
fc36a67e | 8244 | case 'p': |
be75b157 | 8245 | if (alt || vectorize) |
c2e66d9e | 8246 | goto unknown; |
211dfcf1 | 8247 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 8248 | base = 16; |
8249 | goto integer; | |
8250 | ||
46fc3d4c | 8251 | case 'D': |
29fe7a80 | 8252 | #ifdef IV_IS_QUAD |
22f3ae8c | 8253 | intsize = 'q'; |
29fe7a80 | 8254 | #else |
46fc3d4c | 8255 | intsize = 'l'; |
29fe7a80 | 8256 | #endif |
46fc3d4c | 8257 | /* FALL THROUGH */ |
8258 | case 'd': | |
8259 | case 'i': | |
b22c7a20 | 8260 | if (vectorize) { |
ba210ebe | 8261 | STRLEN ulen; |
211dfcf1 HS |
8262 | if (!veclen) |
8263 | continue; | |
2cf2cfc6 A |
8264 | if (vec_utf8) |
8265 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
8266 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 8267 | else { |
e83d50c9 | 8268 | uv = *vecstr; |
b22c7a20 GS |
8269 | ulen = 1; |
8270 | } | |
8271 | vecstr += ulen; | |
8272 | veclen -= ulen; | |
e83d50c9 JP |
8273 | if (plus) |
8274 | esignbuf[esignlen++] = plus; | |
b22c7a20 GS |
8275 | } |
8276 | else if (args) { | |
46fc3d4c | 8277 | switch (intsize) { |
8278 | case 'h': iv = (short)va_arg(*args, int); break; | |
8279 | default: iv = va_arg(*args, int); break; | |
8280 | case 'l': iv = va_arg(*args, long); break; | |
fc36a67e | 8281 | case 'V': iv = va_arg(*args, IV); break; |
cf2093f6 JH |
8282 | #ifdef HAS_QUAD |
8283 | case 'q': iv = va_arg(*args, Quad_t); break; | |
8284 | #endif | |
46fc3d4c | 8285 | } |
8286 | } | |
8287 | else { | |
211dfcf1 | 8288 | iv = SvIVx(argsv); |
46fc3d4c | 8289 | switch (intsize) { |
8290 | case 'h': iv = (short)iv; break; | |
be28567c | 8291 | default: break; |
46fc3d4c | 8292 | case 'l': iv = (long)iv; break; |
fc36a67e | 8293 | case 'V': break; |
cf2093f6 JH |
8294 | #ifdef HAS_QUAD |
8295 | case 'q': iv = (Quad_t)iv; break; | |
8296 | #endif | |
46fc3d4c | 8297 | } |
8298 | } | |
e83d50c9 JP |
8299 | if ( !vectorize ) /* we already set uv above */ |
8300 | { | |
8301 | if (iv >= 0) { | |
8302 | uv = iv; | |
8303 | if (plus) | |
8304 | esignbuf[esignlen++] = plus; | |
8305 | } | |
8306 | else { | |
8307 | uv = -iv; | |
8308 | esignbuf[esignlen++] = '-'; | |
8309 | } | |
46fc3d4c | 8310 | } |
8311 | base = 10; | |
8312 | goto integer; | |
8313 | ||
fc36a67e | 8314 | case 'U': |
29fe7a80 | 8315 | #ifdef IV_IS_QUAD |
22f3ae8c | 8316 | intsize = 'q'; |
29fe7a80 | 8317 | #else |
fc36a67e | 8318 | intsize = 'l'; |
29fe7a80 | 8319 | #endif |
fc36a67e | 8320 | /* FALL THROUGH */ |
8321 | case 'u': | |
8322 | base = 10; | |
8323 | goto uns_integer; | |
8324 | ||
4f19785b WSI |
8325 | case 'b': |
8326 | base = 2; | |
8327 | goto uns_integer; | |
8328 | ||
46fc3d4c | 8329 | case 'O': |
29fe7a80 | 8330 | #ifdef IV_IS_QUAD |
22f3ae8c | 8331 | intsize = 'q'; |
29fe7a80 | 8332 | #else |
46fc3d4c | 8333 | intsize = 'l'; |
29fe7a80 | 8334 | #endif |
46fc3d4c | 8335 | /* FALL THROUGH */ |
8336 | case 'o': | |
8337 | base = 8; | |
8338 | goto uns_integer; | |
8339 | ||
8340 | case 'X': | |
46fc3d4c | 8341 | case 'x': |
8342 | base = 16; | |
46fc3d4c | 8343 | |
8344 | uns_integer: | |
b22c7a20 | 8345 | if (vectorize) { |
ba210ebe | 8346 | STRLEN ulen; |
b22c7a20 | 8347 | vector: |
211dfcf1 HS |
8348 | if (!veclen) |
8349 | continue; | |
2cf2cfc6 A |
8350 | if (vec_utf8) |
8351 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
8352 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 8353 | else { |
a05b299f | 8354 | uv = *vecstr; |
b22c7a20 GS |
8355 | ulen = 1; |
8356 | } | |
8357 | vecstr += ulen; | |
8358 | veclen -= ulen; | |
8359 | } | |
8360 | else if (args) { | |
46fc3d4c | 8361 | switch (intsize) { |
8362 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
8363 | default: uv = va_arg(*args, unsigned); break; | |
8364 | case 'l': uv = va_arg(*args, unsigned long); break; | |
fc36a67e | 8365 | case 'V': uv = va_arg(*args, UV); break; |
cf2093f6 JH |
8366 | #ifdef HAS_QUAD |
8367 | case 'q': uv = va_arg(*args, Quad_t); break; | |
8368 | #endif | |
46fc3d4c | 8369 | } |
8370 | } | |
8371 | else { | |
211dfcf1 | 8372 | uv = SvUVx(argsv); |
46fc3d4c | 8373 | switch (intsize) { |
8374 | case 'h': uv = (unsigned short)uv; break; | |
be28567c | 8375 | default: break; |
46fc3d4c | 8376 | case 'l': uv = (unsigned long)uv; break; |
fc36a67e | 8377 | case 'V': break; |
cf2093f6 JH |
8378 | #ifdef HAS_QUAD |
8379 | case 'q': uv = (Quad_t)uv; break; | |
8380 | #endif | |
46fc3d4c | 8381 | } |
8382 | } | |
8383 | ||
8384 | integer: | |
46fc3d4c | 8385 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 8386 | switch (base) { |
8387 | unsigned dig; | |
8388 | case 16: | |
c10ed8b9 HS |
8389 | if (!uv) |
8390 | alt = FALSE; | |
1d7c1841 GS |
8391 | p = (char*)((c == 'X') |
8392 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 8393 | do { |
8394 | dig = uv & 15; | |
8395 | *--eptr = p[dig]; | |
8396 | } while (uv >>= 4); | |
8397 | if (alt) { | |
46fc3d4c | 8398 | esignbuf[esignlen++] = '0'; |
fc36a67e | 8399 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 8400 | } |
fc36a67e | 8401 | break; |
8402 | case 8: | |
8403 | do { | |
8404 | dig = uv & 7; | |
8405 | *--eptr = '0' + dig; | |
8406 | } while (uv >>= 3); | |
8407 | if (alt && *eptr != '0') | |
8408 | *--eptr = '0'; | |
8409 | break; | |
4f19785b WSI |
8410 | case 2: |
8411 | do { | |
8412 | dig = uv & 1; | |
8413 | *--eptr = '0' + dig; | |
8414 | } while (uv >>= 1); | |
eda88b6d JH |
8415 | if (alt) { |
8416 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 8417 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 8418 | } |
4f19785b | 8419 | break; |
fc36a67e | 8420 | default: /* it had better be ten or less */ |
6bc102ca | 8421 | #if defined(PERL_Y2KWARN) |
e476b1b5 | 8422 | if (ckWARN(WARN_Y2K)) { |
6bc102ca GS |
8423 | STRLEN n; |
8424 | char *s = SvPV(sv,n); | |
8425 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
8426 | && (n == 2 || !isDIGIT(s[n-3]))) | |
8427 | { | |
9014280d | 8428 | Perl_warner(aTHX_ packWARN(WARN_Y2K), |
6bc102ca GS |
8429 | "Possible Y2K bug: %%%c %s", |
8430 | c, "format string following '19'"); | |
8431 | } | |
8432 | } | |
8433 | #endif | |
fc36a67e | 8434 | do { |
8435 | dig = uv % base; | |
8436 | *--eptr = '0' + dig; | |
8437 | } while (uv /= base); | |
8438 | break; | |
46fc3d4c | 8439 | } |
8440 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
8441 | if (has_precis) { |
8442 | if (precis > elen) | |
8443 | zeros = precis - elen; | |
8444 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
8445 | elen = 0; | |
8446 | } | |
46fc3d4c | 8447 | break; |
8448 | ||
8449 | /* FLOATING POINT */ | |
8450 | ||
fc36a67e | 8451 | case 'F': |
8452 | c = 'f'; /* maybe %F isn't supported here */ | |
8453 | /* FALL THROUGH */ | |
46fc3d4c | 8454 | case 'e': case 'E': |
fc36a67e | 8455 | case 'f': |
46fc3d4c | 8456 | case 'g': case 'G': |
8457 | ||
8458 | /* This is evil, but floating point is even more evil */ | |
8459 | ||
9e5b023a JH |
8460 | /* for SV-style calling, we can only get NV |
8461 | for C-style calling, we assume %f is double; | |
8462 | for simplicity we allow any of %Lf, %llf, %qf for long double | |
8463 | */ | |
8464 | switch (intsize) { | |
8465 | case 'V': | |
8466 | #if defined(USE_LONG_DOUBLE) | |
8467 | intsize = 'q'; | |
8468 | #endif | |
8469 | break; | |
8470 | default: | |
8471 | #if defined(USE_LONG_DOUBLE) | |
8472 | intsize = args ? 0 : 'q'; | |
8473 | #endif | |
8474 | break; | |
8475 | case 'q': | |
8476 | #if defined(HAS_LONG_DOUBLE) | |
8477 | break; | |
8478 | #else | |
8479 | /* FALL THROUGH */ | |
8480 | #endif | |
8481 | case 'h': | |
8482 | /* FALL THROUGH */ | |
8483 | case 'l': | |
8484 | goto unknown; | |
8485 | } | |
8486 | ||
8487 | /* now we need (long double) if intsize == 'q', else (double) */ | |
be75b157 | 8488 | nv = (args && !vectorize) ? |
35fff930 JH |
8489 | #if LONG_DOUBLESIZE > DOUBLESIZE |
8490 | intsize == 'q' ? | |
8491 | va_arg(*args, long double) : | |
8492 | va_arg(*args, double) | |
8493 | #else | |
8494 | va_arg(*args, double) | |
8495 | #endif | |
9e5b023a | 8496 | : SvNVx(argsv); |
fc36a67e | 8497 | |
8498 | need = 0; | |
be75b157 | 8499 | vectorize = FALSE; |
fc36a67e | 8500 | if (c != 'e' && c != 'E') { |
8501 | i = PERL_INT_MIN; | |
9e5b023a JH |
8502 | /* FIXME: if HAS_LONG_DOUBLE but not USE_LONG_DOUBLE this |
8503 | will cast our (long double) to (double) */ | |
73b309ea | 8504 | (void)Perl_frexp(nv, &i); |
fc36a67e | 8505 | if (i == PERL_INT_MIN) |
cea2e8a9 | 8506 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 8507 | if (i > 0) |
fc36a67e | 8508 | need = BIT_DIGITS(i); |
8509 | } | |
8510 | need += has_precis ? precis : 6; /* known default */ | |
8511 | if (need < width) | |
8512 | need = width; | |
8513 | ||
46fc3d4c | 8514 | need += 20; /* fudge factor */ |
80252599 GS |
8515 | if (PL_efloatsize < need) { |
8516 | Safefree(PL_efloatbuf); | |
8517 | PL_efloatsize = need + 20; /* more fudge */ | |
8518 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 8519 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 8520 | } |
8521 | ||
8522 | eptr = ebuf + sizeof ebuf; | |
8523 | *--eptr = '\0'; | |
8524 | *--eptr = c; | |
9e5b023a JH |
8525 | /* FIXME: what to do if HAS_LONG_DOUBLE but not PERL_PRIfldbl? */ |
8526 | #if defined(HAS_LONG_DOUBLE) && defined(PERL_PRIfldbl) | |
8527 | if (intsize == 'q') { | |
e5c81feb JH |
8528 | /* Copy the one or more characters in a long double |
8529 | * format before the 'base' ([efgEFG]) character to | |
8530 | * the format string. */ | |
8531 | static char const prifldbl[] = PERL_PRIfldbl; | |
8532 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
8533 | while (p >= prifldbl) { *--eptr = *p--; } | |
cf2093f6 | 8534 | } |
65202027 | 8535 | #endif |
46fc3d4c | 8536 | if (has_precis) { |
8537 | base = precis; | |
8538 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8539 | *--eptr = '.'; | |
8540 | } | |
8541 | if (width) { | |
8542 | base = width; | |
8543 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8544 | } | |
8545 | if (fill == '0') | |
8546 | *--eptr = fill; | |
84902520 TB |
8547 | if (left) |
8548 | *--eptr = '-'; | |
46fc3d4c | 8549 | if (plus) |
8550 | *--eptr = plus; | |
8551 | if (alt) | |
8552 | *--eptr = '#'; | |
8553 | *--eptr = '%'; | |
8554 | ||
ff9121f8 JH |
8555 | /* No taint. Otherwise we are in the strange situation |
8556 | * where printf() taints but print($float) doesn't. | |
bda0f7a5 | 8557 | * --jhi */ |
9e5b023a JH |
8558 | #if defined(HAS_LONG_DOUBLE) |
8559 | if (intsize == 'q') | |
8560 | (void)sprintf(PL_efloatbuf, eptr, nv); | |
8561 | else | |
8562 | (void)sprintf(PL_efloatbuf, eptr, (double)nv); | |
8563 | #else | |
dd8482fc | 8564 | (void)sprintf(PL_efloatbuf, eptr, nv); |
9e5b023a | 8565 | #endif |
80252599 GS |
8566 | eptr = PL_efloatbuf; |
8567 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 8568 | break; |
8569 | ||
fc36a67e | 8570 | /* SPECIAL */ |
8571 | ||
8572 | case 'n': | |
8573 | i = SvCUR(sv) - origlen; | |
be75b157 | 8574 | if (args && !vectorize) { |
c635e13b | 8575 | switch (intsize) { |
8576 | case 'h': *(va_arg(*args, short*)) = i; break; | |
8577 | default: *(va_arg(*args, int*)) = i; break; | |
8578 | case 'l': *(va_arg(*args, long*)) = i; break; | |
8579 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
8580 | #ifdef HAS_QUAD |
8581 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
8582 | #endif | |
c635e13b | 8583 | } |
fc36a67e | 8584 | } |
9dd79c3f | 8585 | else |
211dfcf1 | 8586 | sv_setuv_mg(argsv, (UV)i); |
be75b157 | 8587 | vectorize = FALSE; |
fc36a67e | 8588 | continue; /* not "break" */ |
8589 | ||
8590 | /* UNKNOWN */ | |
8591 | ||
46fc3d4c | 8592 | default: |
fc36a67e | 8593 | unknown: |
b22c7a20 | 8594 | vectorize = FALSE; |
599cee73 | 8595 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 8596 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 8597 | SV *msg = sv_newmortal(); |
cea2e8a9 | 8598 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ", |
533c011a | 8599 | (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); |
0f4b6630 | 8600 | if (c) { |
0f4b6630 | 8601 | if (isPRINT(c)) |
1c846c1f | 8602 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
8603 | "\"%%%c\"", c & 0xFF); |
8604 | else | |
8605 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 8606 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 8607 | (UV)c & 0xFF); |
0f4b6630 | 8608 | } else |
c635e13b | 8609 | sv_catpv(msg, "end of string"); |
9014280d | 8610 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 8611 | } |
fb73857a | 8612 | |
8613 | /* output mangled stuff ... */ | |
8614 | if (c == '\0') | |
8615 | --q; | |
46fc3d4c | 8616 | eptr = p; |
8617 | elen = q - p; | |
fb73857a | 8618 | |
8619 | /* ... right here, because formatting flags should not apply */ | |
8620 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8621 | p = SvEND(sv); | |
4459522c | 8622 | Copy(eptr, p, elen, char); |
fb73857a | 8623 | p += elen; |
8624 | *p = '\0'; | |
8625 | SvCUR(sv) = p - SvPVX(sv); | |
8626 | continue; /* not "break" */ | |
46fc3d4c | 8627 | } |
8628 | ||
d2876be5 JH |
8629 | if (is_utf8 != has_utf8) { |
8630 | if (is_utf8) { | |
8631 | if (SvCUR(sv)) | |
8632 | sv_utf8_upgrade(sv); | |
8633 | } | |
8634 | else { | |
8635 | SV *nsv = sv_2mortal(newSVpvn(eptr, elen)); | |
8636 | sv_utf8_upgrade(nsv); | |
8637 | eptr = SvPVX(nsv); | |
8638 | elen = SvCUR(nsv); | |
8639 | } | |
8640 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8641 | p = SvEND(sv); | |
8642 | *p = '\0'; | |
8643 | } | |
8644 | ||
fc36a67e | 8645 | have = esignlen + zeros + elen; |
46fc3d4c | 8646 | need = (have > width ? have : width); |
8647 | gap = need - have; | |
8648 | ||
b22c7a20 | 8649 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 8650 | p = SvEND(sv); |
8651 | if (esignlen && fill == '0') { | |
eb160463 | 8652 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 8653 | *p++ = esignbuf[i]; |
8654 | } | |
8655 | if (gap && !left) { | |
8656 | memset(p, fill, gap); | |
8657 | p += gap; | |
8658 | } | |
8659 | if (esignlen && fill != '0') { | |
eb160463 | 8660 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 8661 | *p++ = esignbuf[i]; |
8662 | } | |
fc36a67e | 8663 | if (zeros) { |
8664 | for (i = zeros; i; i--) | |
8665 | *p++ = '0'; | |
8666 | } | |
46fc3d4c | 8667 | if (elen) { |
4459522c | 8668 | Copy(eptr, p, elen, char); |
46fc3d4c | 8669 | p += elen; |
8670 | } | |
8671 | if (gap && left) { | |
8672 | memset(p, ' ', gap); | |
8673 | p += gap; | |
8674 | } | |
b22c7a20 GS |
8675 | if (vectorize) { |
8676 | if (veclen) { | |
4459522c | 8677 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
8678 | p += dotstrlen; |
8679 | } | |
8680 | else | |
8681 | vectorize = FALSE; /* done iterating over vecstr */ | |
8682 | } | |
2cf2cfc6 A |
8683 | if (is_utf8) |
8684 | has_utf8 = TRUE; | |
8685 | if (has_utf8) | |
7e2040f0 | 8686 | SvUTF8_on(sv); |
46fc3d4c | 8687 | *p = '\0'; |
8688 | SvCUR(sv) = p - SvPVX(sv); | |
b22c7a20 GS |
8689 | if (vectorize) { |
8690 | esignlen = 0; | |
8691 | goto vector; | |
8692 | } | |
46fc3d4c | 8693 | } |
8694 | } | |
51371543 | 8695 | |
645c22ef DM |
8696 | /* ========================================================================= |
8697 | ||
8698 | =head1 Cloning an interpreter | |
8699 | ||
8700 | All the macros and functions in this section are for the private use of | |
8701 | the main function, perl_clone(). | |
8702 | ||
8703 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
8704 | During the course of a cloning, a hash table is used to map old addresses | |
8705 | to new addresses. The table is created and manipulated with the | |
8706 | ptr_table_* functions. | |
8707 | ||
8708 | =cut | |
8709 | ||
8710 | ============================================================================*/ | |
8711 | ||
8712 | ||
1d7c1841 GS |
8713 | #if defined(USE_ITHREADS) |
8714 | ||
4d1ff10f AB |
8715 | #if defined(USE_5005THREADS) |
8716 | # include "error: USE_5005THREADS and USE_ITHREADS are incompatible" | |
1d7c1841 GS |
8717 | #endif |
8718 | ||
1d7c1841 GS |
8719 | #ifndef GpREFCNT_inc |
8720 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
8721 | #endif | |
8722 | ||
8723 | ||
d2d73c3e AB |
8724 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
8725 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
8726 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8727 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
8728 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8729 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
8730 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8731 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
8732 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8733 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
8734 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
8735 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
8736 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
8cf8f3d1 | 8737 | |
d2d73c3e | 8738 | |
d2f185dc AMS |
8739 | /* Duplicate a regexp. Required reading: pregcomp() and pregfree() in |
8740 | regcomp.c. AMS 20010712 */ | |
645c22ef | 8741 | |
1d7c1841 | 8742 | REGEXP * |
a8fc9800 | 8743 | Perl_re_dup(pTHX_ REGEXP *r, CLONE_PARAMS *param) |
1d7c1841 | 8744 | { |
d2f185dc AMS |
8745 | REGEXP *ret; |
8746 | int i, len, npar; | |
8747 | struct reg_substr_datum *s; | |
8748 | ||
8749 | if (!r) | |
8750 | return (REGEXP *)NULL; | |
8751 | ||
8752 | if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) | |
8753 | return ret; | |
8754 | ||
8755 | len = r->offsets[0]; | |
8756 | npar = r->nparens+1; | |
8757 | ||
8758 | Newc(0, ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); | |
8759 | Copy(r->program, ret->program, len+1, regnode); | |
8760 | ||
8761 | New(0, ret->startp, npar, I32); | |
8762 | Copy(r->startp, ret->startp, npar, I32); | |
8763 | New(0, ret->endp, npar, I32); | |
8764 | Copy(r->startp, ret->startp, npar, I32); | |
8765 | ||
d2f185dc AMS |
8766 | New(0, ret->substrs, 1, struct reg_substr_data); |
8767 | for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { | |
8768 | s->min_offset = r->substrs->data[i].min_offset; | |
8769 | s->max_offset = r->substrs->data[i].max_offset; | |
8770 | s->substr = sv_dup_inc(r->substrs->data[i].substr, param); | |
33b8afdf | 8771 | s->utf8_substr = sv_dup_inc(r->substrs->data[i].utf8_substr, param); |
d2f185dc AMS |
8772 | } |
8773 | ||
70612e96 | 8774 | ret->regstclass = NULL; |
d2f185dc AMS |
8775 | if (r->data) { |
8776 | struct reg_data *d; | |
8777 | int count = r->data->count; | |
8778 | ||
8779 | Newc(0, d, sizeof(struct reg_data) + count*sizeof(void *), | |
8780 | char, struct reg_data); | |
8781 | New(0, d->what, count, U8); | |
8782 | ||
8783 | d->count = count; | |
8784 | for (i = 0; i < count; i++) { | |
8785 | d->what[i] = r->data->what[i]; | |
8786 | switch (d->what[i]) { | |
8787 | case 's': | |
8788 | d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); | |
8789 | break; | |
8790 | case 'p': | |
8791 | d->data[i] = av_dup_inc((AV *)r->data->data[i], param); | |
8792 | break; | |
8793 | case 'f': | |
8794 | /* This is cheating. */ | |
8795 | New(0, d->data[i], 1, struct regnode_charclass_class); | |
8796 | StructCopy(r->data->data[i], d->data[i], | |
8797 | struct regnode_charclass_class); | |
70612e96 | 8798 | ret->regstclass = (regnode*)d->data[i]; |
d2f185dc AMS |
8799 | break; |
8800 | case 'o': | |
33773810 AMS |
8801 | /* Compiled op trees are readonly, and can thus be |
8802 | shared without duplication. */ | |
9b978d73 DM |
8803 | d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); |
8804 | break; | |
d2f185dc AMS |
8805 | case 'n': |
8806 | d->data[i] = r->data->data[i]; | |
8807 | break; | |
8808 | } | |
8809 | } | |
8810 | ||
8811 | ret->data = d; | |
8812 | } | |
8813 | else | |
8814 | ret->data = NULL; | |
8815 | ||
8816 | New(0, ret->offsets, 2*len+1, U32); | |
8817 | Copy(r->offsets, ret->offsets, 2*len+1, U32); | |
8818 | ||
8819 | ret->precomp = SAVEPV(r->precomp); | |
d2f185dc AMS |
8820 | ret->refcnt = r->refcnt; |
8821 | ret->minlen = r->minlen; | |
8822 | ret->prelen = r->prelen; | |
8823 | ret->nparens = r->nparens; | |
8824 | ret->lastparen = r->lastparen; | |
8825 | ret->lastcloseparen = r->lastcloseparen; | |
8826 | ret->reganch = r->reganch; | |
8827 | ||
70612e96 RG |
8828 | ret->sublen = r->sublen; |
8829 | ||
8830 | if (RX_MATCH_COPIED(ret)) | |
8831 | ret->subbeg = SAVEPV(r->subbeg); | |
8832 | else | |
8833 | ret->subbeg = Nullch; | |
8834 | ||
d2f185dc AMS |
8835 | ptr_table_store(PL_ptr_table, r, ret); |
8836 | return ret; | |
1d7c1841 GS |
8837 | } |
8838 | ||
d2d73c3e | 8839 | /* duplicate a file handle */ |
645c22ef | 8840 | |
1d7c1841 | 8841 | PerlIO * |
a8fc9800 | 8842 | Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) |
1d7c1841 GS |
8843 | { |
8844 | PerlIO *ret; | |
8845 | if (!fp) | |
8846 | return (PerlIO*)NULL; | |
8847 | ||
8848 | /* look for it in the table first */ | |
8849 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
8850 | if (ret) | |
8851 | return ret; | |
8852 | ||
8853 | /* create anew and remember what it is */ | |
ecdeb87c | 8854 | ret = PerlIO_fdupopen(aTHX_ fp, param, PERLIO_DUP_CLONE); |
1d7c1841 GS |
8855 | ptr_table_store(PL_ptr_table, fp, ret); |
8856 | return ret; | |
8857 | } | |
8858 | ||
645c22ef DM |
8859 | /* duplicate a directory handle */ |
8860 | ||
1d7c1841 GS |
8861 | DIR * |
8862 | Perl_dirp_dup(pTHX_ DIR *dp) | |
8863 | { | |
8864 | if (!dp) | |
8865 | return (DIR*)NULL; | |
8866 | /* XXX TODO */ | |
8867 | return dp; | |
8868 | } | |
8869 | ||
ff276b08 | 8870 | /* duplicate a typeglob */ |
645c22ef | 8871 | |
1d7c1841 | 8872 | GP * |
a8fc9800 | 8873 | Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) |
1d7c1841 GS |
8874 | { |
8875 | GP *ret; | |
8876 | if (!gp) | |
8877 | return (GP*)NULL; | |
8878 | /* look for it in the table first */ | |
8879 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
8880 | if (ret) | |
8881 | return ret; | |
8882 | ||
8883 | /* create anew and remember what it is */ | |
8884 | Newz(0, ret, 1, GP); | |
8885 | ptr_table_store(PL_ptr_table, gp, ret); | |
8886 | ||
8887 | /* clone */ | |
8888 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
8889 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
8890 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
8891 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
8892 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
8893 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
8894 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
8895 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
8896 | ret->gp_cvgen = gp->gp_cvgen; |
8897 | ret->gp_flags = gp->gp_flags; | |
8898 | ret->gp_line = gp->gp_line; | |
8899 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
8900 | return ret; | |
8901 | } | |
8902 | ||
645c22ef DM |
8903 | /* duplicate a chain of magic */ |
8904 | ||
1d7c1841 | 8905 | MAGIC * |
a8fc9800 | 8906 | Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS* param) |
1d7c1841 | 8907 | { |
cb359b41 JH |
8908 | MAGIC *mgprev = (MAGIC*)NULL; |
8909 | MAGIC *mgret; | |
1d7c1841 GS |
8910 | if (!mg) |
8911 | return (MAGIC*)NULL; | |
8912 | /* look for it in the table first */ | |
8913 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
8914 | if (mgret) | |
8915 | return mgret; | |
8916 | ||
8917 | for (; mg; mg = mg->mg_moremagic) { | |
8918 | MAGIC *nmg; | |
8919 | Newz(0, nmg, 1, MAGIC); | |
cb359b41 | 8920 | if (mgprev) |
1d7c1841 | 8921 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
8922 | else |
8923 | mgret = nmg; | |
1d7c1841 GS |
8924 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
8925 | nmg->mg_private = mg->mg_private; | |
8926 | nmg->mg_type = mg->mg_type; | |
8927 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 8928 | if (mg->mg_type == PERL_MAGIC_qr) { |
d2f185dc | 8929 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj, param); |
1d7c1841 | 8930 | } |
05bd4103 JH |
8931 | else if(mg->mg_type == PERL_MAGIC_backref) { |
8932 | AV *av = (AV*) mg->mg_obj; | |
8933 | SV **svp; | |
8934 | I32 i; | |
8935 | nmg->mg_obj = (SV*)newAV(); | |
8936 | svp = AvARRAY(av); | |
8937 | i = AvFILLp(av); | |
8938 | while (i >= 0) { | |
8939 | av_push((AV*)nmg->mg_obj,sv_dup(svp[i],param)); | |
8940 | i--; | |
8941 | } | |
8942 | } | |
1d7c1841 GS |
8943 | else { |
8944 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
8945 | ? sv_dup_inc(mg->mg_obj, param) |
8946 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
8947 | } |
8948 | nmg->mg_len = mg->mg_len; | |
8949 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 8950 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
68795e93 | 8951 | if (mg->mg_len > 0) { |
1d7c1841 | 8952 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); |
14befaf4 DM |
8953 | if (mg->mg_type == PERL_MAGIC_overload_table && |
8954 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
8955 | { | |
1d7c1841 GS |
8956 | AMT *amtp = (AMT*)mg->mg_ptr; |
8957 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
8958 | I32 i; | |
8959 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 8960 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
8961 | } |
8962 | } | |
8963 | } | |
8964 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 8965 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 | 8966 | } |
68795e93 NIS |
8967 | if ((mg->mg_flags & MGf_DUP) && mg->mg_virtual && mg->mg_virtual->svt_dup) { |
8968 | CALL_FPTR(nmg->mg_virtual->svt_dup)(aTHX_ nmg, param); | |
8969 | } | |
1d7c1841 GS |
8970 | mgprev = nmg; |
8971 | } | |
8972 | return mgret; | |
8973 | } | |
8974 | ||
645c22ef DM |
8975 | /* create a new pointer-mapping table */ |
8976 | ||
1d7c1841 GS |
8977 | PTR_TBL_t * |
8978 | Perl_ptr_table_new(pTHX) | |
8979 | { | |
8980 | PTR_TBL_t *tbl; | |
8981 | Newz(0, tbl, 1, PTR_TBL_t); | |
8982 | tbl->tbl_max = 511; | |
8983 | tbl->tbl_items = 0; | |
8984 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
8985 | return tbl; | |
8986 | } | |
8987 | ||
645c22ef DM |
8988 | /* map an existing pointer using a table */ |
8989 | ||
1d7c1841 GS |
8990 | void * |
8991 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
8992 | { | |
8993 | PTR_TBL_ENT_t *tblent; | |
d2a79402 | 8994 | UV hash = PTR2UV(sv); |
1d7c1841 GS |
8995 | assert(tbl); |
8996 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
8997 | for (; tblent; tblent = tblent->next) { | |
8998 | if (tblent->oldval == sv) | |
8999 | return tblent->newval; | |
9000 | } | |
9001 | return (void*)NULL; | |
9002 | } | |
9003 | ||
645c22ef DM |
9004 | /* add a new entry to a pointer-mapping table */ |
9005 | ||
1d7c1841 GS |
9006 | void |
9007 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
9008 | { | |
9009 | PTR_TBL_ENT_t *tblent, **otblent; | |
9010 | /* XXX this may be pessimal on platforms where pointers aren't good | |
9011 | * hash values e.g. if they grow faster in the most significant | |
9012 | * bits */ | |
d2a79402 | 9013 | UV hash = PTR2UV(oldv); |
1d7c1841 GS |
9014 | bool i = 1; |
9015 | ||
9016 | assert(tbl); | |
9017 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
9018 | for (tblent = *otblent; tblent; i=0, tblent = tblent->next) { | |
9019 | if (tblent->oldval == oldv) { | |
9020 | tblent->newval = newv; | |
1d7c1841 GS |
9021 | return; |
9022 | } | |
9023 | } | |
9024 | Newz(0, tblent, 1, PTR_TBL_ENT_t); | |
9025 | tblent->oldval = oldv; | |
9026 | tblent->newval = newv; | |
9027 | tblent->next = *otblent; | |
9028 | *otblent = tblent; | |
9029 | tbl->tbl_items++; | |
9030 | if (i && tbl->tbl_items > tbl->tbl_max) | |
9031 | ptr_table_split(tbl); | |
9032 | } | |
9033 | ||
645c22ef DM |
9034 | /* double the hash bucket size of an existing ptr table */ |
9035 | ||
1d7c1841 GS |
9036 | void |
9037 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
9038 | { | |
9039 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
9040 | UV oldsize = tbl->tbl_max + 1; | |
9041 | UV newsize = oldsize * 2; | |
9042 | UV i; | |
9043 | ||
9044 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
9045 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
9046 | tbl->tbl_max = --newsize; | |
9047 | tbl->tbl_ary = ary; | |
9048 | for (i=0; i < oldsize; i++, ary++) { | |
9049 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
9050 | if (!*ary) | |
9051 | continue; | |
9052 | curentp = ary + oldsize; | |
9053 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
d2a79402 | 9054 | if ((newsize & PTR2UV(ent->oldval)) != i) { |
1d7c1841 GS |
9055 | *entp = ent->next; |
9056 | ent->next = *curentp; | |
9057 | *curentp = ent; | |
9058 | continue; | |
9059 | } | |
9060 | else | |
9061 | entp = &ent->next; | |
9062 | } | |
9063 | } | |
9064 | } | |
9065 | ||
645c22ef DM |
9066 | /* remove all the entries from a ptr table */ |
9067 | ||
a0739874 DM |
9068 | void |
9069 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
9070 | { | |
9071 | register PTR_TBL_ENT_t **array; | |
9072 | register PTR_TBL_ENT_t *entry; | |
9073 | register PTR_TBL_ENT_t *oentry = Null(PTR_TBL_ENT_t*); | |
9074 | UV riter = 0; | |
9075 | UV max; | |
9076 | ||
9077 | if (!tbl || !tbl->tbl_items) { | |
9078 | return; | |
9079 | } | |
9080 | ||
9081 | array = tbl->tbl_ary; | |
9082 | entry = array[0]; | |
9083 | max = tbl->tbl_max; | |
9084 | ||
9085 | for (;;) { | |
9086 | if (entry) { | |
9087 | oentry = entry; | |
9088 | entry = entry->next; | |
9089 | Safefree(oentry); | |
9090 | } | |
9091 | if (!entry) { | |
9092 | if (++riter > max) { | |
9093 | break; | |
9094 | } | |
9095 | entry = array[riter]; | |
9096 | } | |
9097 | } | |
9098 | ||
9099 | tbl->tbl_items = 0; | |
9100 | } | |
9101 | ||
645c22ef DM |
9102 | /* clear and free a ptr table */ |
9103 | ||
a0739874 DM |
9104 | void |
9105 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
9106 | { | |
9107 | if (!tbl) { | |
9108 | return; | |
9109 | } | |
9110 | ptr_table_clear(tbl); | |
9111 | Safefree(tbl->tbl_ary); | |
9112 | Safefree(tbl); | |
9113 | } | |
9114 | ||
1d7c1841 GS |
9115 | #ifdef DEBUGGING |
9116 | char *PL_watch_pvx; | |
9117 | #endif | |
9118 | ||
645c22ef DM |
9119 | /* attempt to make everything in the typeglob readonly */ |
9120 | ||
5bd07a3d | 9121 | STATIC SV * |
59b40662 | 9122 | S_gv_share(pTHX_ SV *sstr, CLONE_PARAMS *param) |
5bd07a3d DM |
9123 | { |
9124 | GV *gv = (GV*)sstr; | |
59b40662 | 9125 | SV *sv = ¶m->proto_perl->Isv_no; /* just need SvREADONLY-ness */ |
5bd07a3d DM |
9126 | |
9127 | if (GvIO(gv) || GvFORM(gv)) { | |
7fb37951 | 9128 | GvUNIQUE_off(gv); /* GvIOs cannot be shared. nor can GvFORMs */ |
5bd07a3d DM |
9129 | } |
9130 | else if (!GvCV(gv)) { | |
9131 | GvCV(gv) = (CV*)sv; | |
9132 | } | |
9133 | else { | |
9134 | /* CvPADLISTs cannot be shared */ | |
37e20706 | 9135 | if (!SvREADONLY(GvCV(gv)) && !CvXSUB(GvCV(gv))) { |
7fb37951 | 9136 | GvUNIQUE_off(gv); |
5bd07a3d DM |
9137 | } |
9138 | } | |
9139 | ||
7fb37951 | 9140 | if (!GvUNIQUE(gv)) { |
5bd07a3d DM |
9141 | #if 0 |
9142 | PerlIO_printf(Perl_debug_log, "gv_share: unable to share %s::%s\n", | |
9143 | HvNAME(GvSTASH(gv)), GvNAME(gv)); | |
9144 | #endif | |
9145 | return Nullsv; | |
9146 | } | |
9147 | ||
4411f3b6 | 9148 | /* |
5bd07a3d DM |
9149 | * write attempts will die with |
9150 | * "Modification of a read-only value attempted" | |
9151 | */ | |
9152 | if (!GvSV(gv)) { | |
9153 | GvSV(gv) = sv; | |
9154 | } | |
9155 | else { | |
9156 | SvREADONLY_on(GvSV(gv)); | |
9157 | } | |
9158 | ||
9159 | if (!GvAV(gv)) { | |
9160 | GvAV(gv) = (AV*)sv; | |
9161 | } | |
9162 | else { | |
9163 | SvREADONLY_on(GvAV(gv)); | |
9164 | } | |
9165 | ||
9166 | if (!GvHV(gv)) { | |
9167 | GvHV(gv) = (HV*)sv; | |
9168 | } | |
9169 | else { | |
9170 | SvREADONLY_on(GvAV(gv)); | |
9171 | } | |
9172 | ||
9173 | return sstr; /* he_dup() will SvREFCNT_inc() */ | |
9174 | } | |
9175 | ||
645c22ef DM |
9176 | /* duplicate an SV of any type (including AV, HV etc) */ |
9177 | ||
83841fad NIS |
9178 | void |
9179 | Perl_rvpv_dup(pTHX_ SV *dstr, SV *sstr, CLONE_PARAMS* param) | |
9180 | { | |
9181 | if (SvROK(sstr)) { | |
9182 | SvRV(dstr) = SvWEAKREF(sstr) | |
9183 | ? sv_dup(SvRV(sstr), param) | |
9184 | : sv_dup_inc(SvRV(sstr), param); | |
9185 | } | |
9186 | else if (SvPVX(sstr)) { | |
9187 | /* Has something there */ | |
9188 | if (SvLEN(sstr)) { | |
68795e93 | 9189 | /* Normal PV - clone whole allocated space */ |
83841fad | 9190 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); |
68795e93 | 9191 | } |
83841fad NIS |
9192 | else { |
9193 | /* Special case - not normally malloced for some reason */ | |
9194 | if (SvREADONLY(sstr) && SvFAKE(sstr)) { | |
9195 | /* A "shared" PV - clone it as unshared string */ | |
9196 | SvFAKE_off(dstr); | |
9197 | SvREADONLY_off(dstr); | |
9198 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvCUR(sstr)); | |
9199 | } | |
9200 | else { | |
9201 | /* Some other special case - random pointer */ | |
9202 | SvPVX(dstr) = SvPVX(sstr); | |
9203 | } | |
9204 | } | |
9205 | } | |
9206 | else { | |
9207 | /* Copy the Null */ | |
9208 | SvPVX(dstr) = SvPVX(sstr); | |
9209 | } | |
9210 | } | |
9211 | ||
1d7c1841 | 9212 | SV * |
a8fc9800 | 9213 | Perl_sv_dup(pTHX_ SV *sstr, CLONE_PARAMS* param) |
1d7c1841 | 9214 | { |
1d7c1841 GS |
9215 | SV *dstr; |
9216 | ||
9217 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
9218 | return Nullsv; | |
9219 | /* look for it in the table first */ | |
9220 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
9221 | if (dstr) | |
9222 | return dstr; | |
9223 | ||
9224 | /* create anew and remember what it is */ | |
9225 | new_SV(dstr); | |
9226 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
9227 | ||
9228 | /* clone */ | |
9229 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
9230 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
9231 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
9232 | ||
9233 | #ifdef DEBUGGING | |
9234 | if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) | |
9235 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", | |
9236 | PL_watch_pvx, SvPVX(sstr)); | |
9237 | #endif | |
9238 | ||
9239 | switch (SvTYPE(sstr)) { | |
9240 | case SVt_NULL: | |
9241 | SvANY(dstr) = NULL; | |
9242 | break; | |
9243 | case SVt_IV: | |
9244 | SvANY(dstr) = new_XIV(); | |
9245 | SvIVX(dstr) = SvIVX(sstr); | |
9246 | break; | |
9247 | case SVt_NV: | |
9248 | SvANY(dstr) = new_XNV(); | |
9249 | SvNVX(dstr) = SvNVX(sstr); | |
9250 | break; | |
9251 | case SVt_RV: | |
9252 | SvANY(dstr) = new_XRV(); | |
83841fad | 9253 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9254 | break; |
9255 | case SVt_PV: | |
9256 | SvANY(dstr) = new_XPV(); | |
9257 | SvCUR(dstr) = SvCUR(sstr); | |
9258 | SvLEN(dstr) = SvLEN(sstr); | |
83841fad | 9259 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9260 | break; |
9261 | case SVt_PVIV: | |
9262 | SvANY(dstr) = new_XPVIV(); | |
9263 | SvCUR(dstr) = SvCUR(sstr); | |
9264 | SvLEN(dstr) = SvLEN(sstr); | |
9265 | SvIVX(dstr) = SvIVX(sstr); | |
83841fad | 9266 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9267 | break; |
9268 | case SVt_PVNV: | |
9269 | SvANY(dstr) = new_XPVNV(); | |
9270 | SvCUR(dstr) = SvCUR(sstr); | |
9271 | SvLEN(dstr) = SvLEN(sstr); | |
9272 | SvIVX(dstr) = SvIVX(sstr); | |
9273 | SvNVX(dstr) = SvNVX(sstr); | |
83841fad | 9274 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9275 | break; |
9276 | case SVt_PVMG: | |
9277 | SvANY(dstr) = new_XPVMG(); | |
9278 | SvCUR(dstr) = SvCUR(sstr); | |
9279 | SvLEN(dstr) = SvLEN(sstr); | |
9280 | SvIVX(dstr) = SvIVX(sstr); | |
9281 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9282 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9283 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9284 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9285 | break; |
9286 | case SVt_PVBM: | |
9287 | SvANY(dstr) = new_XPVBM(); | |
9288 | SvCUR(dstr) = SvCUR(sstr); | |
9289 | SvLEN(dstr) = SvLEN(sstr); | |
9290 | SvIVX(dstr) = SvIVX(sstr); | |
9291 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9292 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9293 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9294 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9295 | BmRARE(dstr) = BmRARE(sstr); |
9296 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
9297 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
9298 | break; | |
9299 | case SVt_PVLV: | |
9300 | SvANY(dstr) = new_XPVLV(); | |
9301 | SvCUR(dstr) = SvCUR(sstr); | |
9302 | SvLEN(dstr) = SvLEN(sstr); | |
9303 | SvIVX(dstr) = SvIVX(sstr); | |
9304 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9305 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9306 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9307 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9308 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ |
9309 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
d2d73c3e | 9310 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); |
1d7c1841 GS |
9311 | LvTYPE(dstr) = LvTYPE(sstr); |
9312 | break; | |
9313 | case SVt_PVGV: | |
7fb37951 | 9314 | if (GvUNIQUE((GV*)sstr)) { |
5bd07a3d | 9315 | SV *share; |
59b40662 | 9316 | if ((share = gv_share(sstr, param))) { |
5bd07a3d DM |
9317 | del_SV(dstr); |
9318 | dstr = share; | |
37e20706 | 9319 | ptr_table_store(PL_ptr_table, sstr, dstr); |
5bd07a3d DM |
9320 | #if 0 |
9321 | PerlIO_printf(Perl_debug_log, "sv_dup: sharing %s::%s\n", | |
9322 | HvNAME(GvSTASH(share)), GvNAME(share)); | |
9323 | #endif | |
9324 | break; | |
9325 | } | |
9326 | } | |
1d7c1841 GS |
9327 | SvANY(dstr) = new_XPVGV(); |
9328 | SvCUR(dstr) = SvCUR(sstr); | |
9329 | SvLEN(dstr) = SvLEN(sstr); | |
9330 | SvIVX(dstr) = SvIVX(sstr); | |
9331 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9332 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9333 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9334 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9335 | GvNAMELEN(dstr) = GvNAMELEN(sstr); |
9336 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 9337 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 9338 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 9339 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
9340 | (void)GpREFCNT_inc(GvGP(dstr)); |
9341 | break; | |
9342 | case SVt_PVIO: | |
9343 | SvANY(dstr) = new_XPVIO(); | |
9344 | SvCUR(dstr) = SvCUR(sstr); | |
9345 | SvLEN(dstr) = SvLEN(sstr); | |
9346 | SvIVX(dstr) = SvIVX(sstr); | |
9347 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9348 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9349 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9350 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
a8fc9800 | 9351 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9352 | if (IoOFP(sstr) == IoIFP(sstr)) |
9353 | IoOFP(dstr) = IoIFP(dstr); | |
9354 | else | |
a8fc9800 | 9355 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9356 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
9357 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
9358 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
9359 | else | |
9360 | IoDIRP(dstr) = IoDIRP(sstr); | |
9361 | IoLINES(dstr) = IoLINES(sstr); | |
9362 | IoPAGE(dstr) = IoPAGE(sstr); | |
9363 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
9364 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
9365 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); | |
d2d73c3e | 9366 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); |
1d7c1841 | 9367 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
d2d73c3e | 9368 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); |
1d7c1841 | 9369 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
d2d73c3e | 9370 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); |
1d7c1841 GS |
9371 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
9372 | IoTYPE(dstr) = IoTYPE(sstr); | |
9373 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
9374 | break; | |
9375 | case SVt_PVAV: | |
9376 | SvANY(dstr) = new_XPVAV(); | |
9377 | SvCUR(dstr) = SvCUR(sstr); | |
9378 | SvLEN(dstr) = SvLEN(sstr); | |
9379 | SvIVX(dstr) = SvIVX(sstr); | |
9380 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9381 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9382 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
9383 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); | |
1d7c1841 GS |
9384 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
9385 | if (AvARRAY((AV*)sstr)) { | |
9386 | SV **dst_ary, **src_ary; | |
9387 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
9388 | ||
9389 | src_ary = AvARRAY((AV*)sstr); | |
9390 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
9391 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
9392 | SvPVX(dstr) = (char*)dst_ary; | |
9393 | AvALLOC((AV*)dstr) = dst_ary; | |
9394 | if (AvREAL((AV*)sstr)) { | |
9395 | while (items-- > 0) | |
d2d73c3e | 9396 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
9397 | } |
9398 | else { | |
9399 | while (items-- > 0) | |
d2d73c3e | 9400 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
9401 | } |
9402 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
9403 | while (items-- > 0) { | |
9404 | *dst_ary++ = &PL_sv_undef; | |
9405 | } | |
9406 | } | |
9407 | else { | |
9408 | SvPVX(dstr) = Nullch; | |
9409 | AvALLOC((AV*)dstr) = (SV**)NULL; | |
9410 | } | |
9411 | break; | |
9412 | case SVt_PVHV: | |
9413 | SvANY(dstr) = new_XPVHV(); | |
9414 | SvCUR(dstr) = SvCUR(sstr); | |
9415 | SvLEN(dstr) = SvLEN(sstr); | |
9416 | SvIVX(dstr) = SvIVX(sstr); | |
9417 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9418 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9419 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
9420 | HvRITER((HV*)dstr) = HvRITER((HV*)sstr); |
9421 | if (HvARRAY((HV*)sstr)) { | |
1d7c1841 GS |
9422 | STRLEN i = 0; |
9423 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
9424 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
9425 | Newz(0, dxhv->xhv_array, | |
9426 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); | |
9427 | while (i <= sxhv->xhv_max) { | |
9428 | ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], | |
eb160463 GS |
9429 | (bool)!!HvSHAREKEYS(sstr), |
9430 | param); | |
1d7c1841 GS |
9431 | ++i; |
9432 | } | |
eb160463 GS |
9433 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, |
9434 | (bool)!!HvSHAREKEYS(sstr), param); | |
1d7c1841 GS |
9435 | } |
9436 | else { | |
9437 | SvPVX(dstr) = Nullch; | |
9438 | HvEITER((HV*)dstr) = (HE*)NULL; | |
9439 | } | |
9440 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
9441 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
c43294b8 | 9442 | /* Record stashes for possible cloning in Perl_clone(). */ |
6676db26 | 9443 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 9444 | av_push(param->stashes, dstr); |
1d7c1841 GS |
9445 | break; |
9446 | case SVt_PVFM: | |
9447 | SvANY(dstr) = new_XPVFM(); | |
9448 | FmLINES(dstr) = FmLINES(sstr); | |
9449 | goto dup_pvcv; | |
9450 | /* NOTREACHED */ | |
9451 | case SVt_PVCV: | |
9452 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 9453 | dup_pvcv: |
1d7c1841 GS |
9454 | SvCUR(dstr) = SvCUR(sstr); |
9455 | SvLEN(dstr) = SvLEN(sstr); | |
9456 | SvIVX(dstr) = SvIVX(sstr); | |
9457 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9458 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9459 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9460 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
d2d73c3e | 9461 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 GS |
9462 | CvSTART(dstr) = CvSTART(sstr); |
9463 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); | |
9464 | CvXSUB(dstr) = CvXSUB(sstr); | |
9465 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
01485f8b DM |
9466 | if (CvCONST(sstr)) { |
9467 | CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(sstr)) ? | |
9468 | SvREFCNT_inc(CvXSUBANY(sstr).any_ptr) : | |
9469 | sv_dup_inc(CvXSUBANY(sstr).any_ptr, param); | |
9470 | } | |
d2d73c3e AB |
9471 | CvGV(dstr) = gv_dup(CvGV(sstr), param); |
9472 | if (param->flags & CLONEf_COPY_STACKS) { | |
9473 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
9474 | } else { | |
9475 | CvDEPTH(dstr) = 0; | |
9476 | } | |
1d7c1841 GS |
9477 | if (CvPADLIST(sstr) && !AvREAL(CvPADLIST(sstr))) { |
9478 | /* XXX padlists are real, but pretend to be not */ | |
9479 | AvREAL_on(CvPADLIST(sstr)); | |
d2d73c3e | 9480 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
1d7c1841 GS |
9481 | AvREAL_off(CvPADLIST(sstr)); |
9482 | AvREAL_off(CvPADLIST(dstr)); | |
9483 | } | |
9484 | else | |
d2d73c3e | 9485 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
282f25c9 | 9486 | if (!CvANON(sstr) || CvCLONED(sstr)) |
d2d73c3e | 9487 | CvOUTSIDE(dstr) = cv_dup_inc(CvOUTSIDE(sstr), param); |
282f25c9 | 9488 | else |
d2d73c3e | 9489 | CvOUTSIDE(dstr) = cv_dup(CvOUTSIDE(sstr), param); |
1d7c1841 | 9490 | CvFLAGS(dstr) = CvFLAGS(sstr); |
54356c7d | 9491 | CvFILE(dstr) = CvXSUB(sstr) ? CvFILE(sstr) : SAVEPV(CvFILE(sstr)); |
1d7c1841 GS |
9492 | break; |
9493 | default: | |
c803eecc | 9494 | Perl_croak(aTHX_ "Bizarre SvTYPE [%" IVdf "]", (IV)SvTYPE(sstr)); |
1d7c1841 GS |
9495 | break; |
9496 | } | |
9497 | ||
9498 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
9499 | ++PL_sv_objcount; | |
9500 | ||
9501 | return dstr; | |
d2d73c3e | 9502 | } |
1d7c1841 | 9503 | |
645c22ef DM |
9504 | /* duplicate a context */ |
9505 | ||
1d7c1841 | 9506 | PERL_CONTEXT * |
a8fc9800 | 9507 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) |
1d7c1841 GS |
9508 | { |
9509 | PERL_CONTEXT *ncxs; | |
9510 | ||
9511 | if (!cxs) | |
9512 | return (PERL_CONTEXT*)NULL; | |
9513 | ||
9514 | /* look for it in the table first */ | |
9515 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
9516 | if (ncxs) | |
9517 | return ncxs; | |
9518 | ||
9519 | /* create anew and remember what it is */ | |
9520 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
9521 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
9522 | ||
9523 | while (ix >= 0) { | |
9524 | PERL_CONTEXT *cx = &cxs[ix]; | |
9525 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
9526 | ncx->cx_type = cx->cx_type; | |
9527 | if (CxTYPE(cx) == CXt_SUBST) { | |
9528 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
9529 | } | |
9530 | else { | |
9531 | ncx->blk_oldsp = cx->blk_oldsp; | |
9532 | ncx->blk_oldcop = cx->blk_oldcop; | |
9533 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
9534 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
9535 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
9536 | ncx->blk_oldpm = cx->blk_oldpm; | |
9537 | ncx->blk_gimme = cx->blk_gimme; | |
9538 | switch (CxTYPE(cx)) { | |
9539 | case CXt_SUB: | |
9540 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
9541 | ? cv_dup_inc(cx->blk_sub.cv, param) |
9542 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 9543 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 9544 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 9545 | : Nullav); |
d2d73c3e | 9546 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
9547 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
9548 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
9549 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
9550 | break; | |
9551 | case CXt_EVAL: | |
9552 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
9553 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
b47cad08 | 9554 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param); |
1d7c1841 | 9555 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 9556 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
1d7c1841 GS |
9557 | break; |
9558 | case CXt_LOOP: | |
9559 | ncx->blk_loop.label = cx->blk_loop.label; | |
9560 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
9561 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
9562 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
9563 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
9564 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
9565 | ? cx->blk_loop.iterdata | |
d2d73c3e | 9566 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
a4b82a6f GS |
9567 | ncx->blk_loop.oldcurpad |
9568 | = (SV**)ptr_table_fetch(PL_ptr_table, | |
9569 | cx->blk_loop.oldcurpad); | |
d2d73c3e AB |
9570 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
9571 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
9572 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
9573 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
9574 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
9575 | break; | |
9576 | case CXt_FORMAT: | |
d2d73c3e AB |
9577 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
9578 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
9579 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 GS |
9580 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
9581 | break; | |
9582 | case CXt_BLOCK: | |
9583 | case CXt_NULL: | |
9584 | break; | |
9585 | } | |
9586 | } | |
9587 | --ix; | |
9588 | } | |
9589 | return ncxs; | |
9590 | } | |
9591 | ||
645c22ef DM |
9592 | /* duplicate a stack info structure */ |
9593 | ||
1d7c1841 | 9594 | PERL_SI * |
a8fc9800 | 9595 | Perl_si_dup(pTHX_ PERL_SI *si, CLONE_PARAMS* param) |
1d7c1841 GS |
9596 | { |
9597 | PERL_SI *nsi; | |
9598 | ||
9599 | if (!si) | |
9600 | return (PERL_SI*)NULL; | |
9601 | ||
9602 | /* look for it in the table first */ | |
9603 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
9604 | if (nsi) | |
9605 | return nsi; | |
9606 | ||
9607 | /* create anew and remember what it is */ | |
9608 | Newz(56, nsi, 1, PERL_SI); | |
9609 | ptr_table_store(PL_ptr_table, si, nsi); | |
9610 | ||
d2d73c3e | 9611 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
9612 | nsi->si_cxix = si->si_cxix; |
9613 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 9614 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 9615 | nsi->si_type = si->si_type; |
d2d73c3e AB |
9616 | nsi->si_prev = si_dup(si->si_prev, param); |
9617 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
9618 | nsi->si_markoff = si->si_markoff; |
9619 | ||
9620 | return nsi; | |
9621 | } | |
9622 | ||
9623 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
9624 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
9625 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
9626 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
9627 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
9628 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
9629 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) | |
9630 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
9631 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
9632 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
9633 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
9634 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
9635 | ||
9636 | /* XXXXX todo */ | |
9637 | #define pv_dup_inc(p) SAVEPV(p) | |
9638 | #define pv_dup(p) SAVEPV(p) | |
9639 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
9640 | ||
645c22ef DM |
9641 | /* map any object to the new equivent - either something in the |
9642 | * ptr table, or something in the interpreter structure | |
9643 | */ | |
9644 | ||
1d7c1841 GS |
9645 | void * |
9646 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
9647 | { | |
9648 | void *ret; | |
9649 | ||
9650 | if (!v) | |
9651 | return (void*)NULL; | |
9652 | ||
9653 | /* look for it in the table first */ | |
9654 | ret = ptr_table_fetch(PL_ptr_table, v); | |
9655 | if (ret) | |
9656 | return ret; | |
9657 | ||
9658 | /* see if it is part of the interpreter structure */ | |
9659 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
acfe0abc | 9660 | ret = (void*)(((char*)aTHX) + (((char*)v) - (char*)proto_perl)); |
05ec9bb3 | 9661 | else { |
1d7c1841 | 9662 | ret = v; |
05ec9bb3 | 9663 | } |
1d7c1841 GS |
9664 | |
9665 | return ret; | |
9666 | } | |
9667 | ||
645c22ef DM |
9668 | /* duplicate the save stack */ |
9669 | ||
1d7c1841 | 9670 | ANY * |
a8fc9800 | 9671 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) |
1d7c1841 GS |
9672 | { |
9673 | ANY *ss = proto_perl->Tsavestack; | |
9674 | I32 ix = proto_perl->Tsavestack_ix; | |
9675 | I32 max = proto_perl->Tsavestack_max; | |
9676 | ANY *nss; | |
9677 | SV *sv; | |
9678 | GV *gv; | |
9679 | AV *av; | |
9680 | HV *hv; | |
9681 | void* ptr; | |
9682 | int intval; | |
9683 | long longval; | |
9684 | GP *gp; | |
9685 | IV iv; | |
9686 | I32 i; | |
c4e33207 | 9687 | char *c = NULL; |
1d7c1841 | 9688 | void (*dptr) (void*); |
acfe0abc | 9689 | void (*dxptr) (pTHX_ void*); |
e977893f | 9690 | OP *o; |
1d7c1841 GS |
9691 | |
9692 | Newz(54, nss, max, ANY); | |
9693 | ||
9694 | while (ix > 0) { | |
9695 | i = POPINT(ss,ix); | |
9696 | TOPINT(nss,ix) = i; | |
9697 | switch (i) { | |
9698 | case SAVEt_ITEM: /* normal string */ | |
9699 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9700 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9701 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9702 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9703 | break; |
9704 | case SAVEt_SV: /* scalar reference */ | |
9705 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9706 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9707 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9708 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 9709 | break; |
f4dd75d9 GS |
9710 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
9711 | c = (char*)POPPTR(ss,ix); | |
9712 | TOPPTR(nss,ix) = pv_dup(c); | |
9713 | ptr = POPPTR(ss,ix); | |
9714 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9715 | break; | |
05ec9bb3 NIS |
9716 | case SAVEt_SHARED_PVREF: /* char* in shared space */ |
9717 | c = (char*)POPPTR(ss,ix); | |
9718 | TOPPTR(nss,ix) = savesharedpv(c); | |
9719 | ptr = POPPTR(ss,ix); | |
9720 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9721 | break; | |
1d7c1841 GS |
9722 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
9723 | case SAVEt_SVREF: /* scalar reference */ | |
9724 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9725 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9726 | ptr = POPPTR(ss,ix); |
9727 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
9728 | break; | |
9729 | case SAVEt_AV: /* array reference */ | |
9730 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9731 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 9732 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9733 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9734 | break; |
9735 | case SAVEt_HV: /* hash reference */ | |
9736 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9737 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 9738 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9739 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9740 | break; |
9741 | case SAVEt_INT: /* int reference */ | |
9742 | ptr = POPPTR(ss,ix); | |
9743 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9744 | intval = (int)POPINT(ss,ix); | |
9745 | TOPINT(nss,ix) = intval; | |
9746 | break; | |
9747 | case SAVEt_LONG: /* long reference */ | |
9748 | ptr = POPPTR(ss,ix); | |
9749 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9750 | longval = (long)POPLONG(ss,ix); | |
9751 | TOPLONG(nss,ix) = longval; | |
9752 | break; | |
9753 | case SAVEt_I32: /* I32 reference */ | |
9754 | case SAVEt_I16: /* I16 reference */ | |
9755 | case SAVEt_I8: /* I8 reference */ | |
9756 | ptr = POPPTR(ss,ix); | |
9757 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9758 | i = POPINT(ss,ix); | |
9759 | TOPINT(nss,ix) = i; | |
9760 | break; | |
9761 | case SAVEt_IV: /* IV reference */ | |
9762 | ptr = POPPTR(ss,ix); | |
9763 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9764 | iv = POPIV(ss,ix); | |
9765 | TOPIV(nss,ix) = iv; | |
9766 | break; | |
9767 | case SAVEt_SPTR: /* SV* reference */ | |
9768 | ptr = POPPTR(ss,ix); | |
9769 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9770 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9771 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
9772 | break; |
9773 | case SAVEt_VPTR: /* random* reference */ | |
9774 | ptr = POPPTR(ss,ix); | |
9775 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9776 | ptr = POPPTR(ss,ix); | |
9777 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9778 | break; | |
9779 | case SAVEt_PPTR: /* char* reference */ | |
9780 | ptr = POPPTR(ss,ix); | |
9781 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9782 | c = (char*)POPPTR(ss,ix); | |
9783 | TOPPTR(nss,ix) = pv_dup(c); | |
9784 | break; | |
9785 | case SAVEt_HPTR: /* HV* reference */ | |
9786 | ptr = POPPTR(ss,ix); | |
9787 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9788 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9789 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
9790 | break; |
9791 | case SAVEt_APTR: /* AV* reference */ | |
9792 | ptr = POPPTR(ss,ix); | |
9793 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9794 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9795 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
9796 | break; |
9797 | case SAVEt_NSTAB: | |
9798 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 9799 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9800 | break; |
9801 | case SAVEt_GP: /* scalar reference */ | |
9802 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 9803 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
9804 | (void)GpREFCNT_inc(gp); |
9805 | gv = (GV*)POPPTR(ss,ix); | |
2ed3c8fc | 9806 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 GS |
9807 | c = (char*)POPPTR(ss,ix); |
9808 | TOPPTR(nss,ix) = pv_dup(c); | |
9809 | iv = POPIV(ss,ix); | |
9810 | TOPIV(nss,ix) = iv; | |
9811 | iv = POPIV(ss,ix); | |
9812 | TOPIV(nss,ix) = iv; | |
9813 | break; | |
9814 | case SAVEt_FREESV: | |
26d9b02f | 9815 | case SAVEt_MORTALIZESV: |
1d7c1841 | 9816 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9817 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9818 | break; |
9819 | case SAVEt_FREEOP: | |
9820 | ptr = POPPTR(ss,ix); | |
9821 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
9822 | /* these are assumed to be refcounted properly */ | |
9823 | switch (((OP*)ptr)->op_type) { | |
9824 | case OP_LEAVESUB: | |
9825 | case OP_LEAVESUBLV: | |
9826 | case OP_LEAVEEVAL: | |
9827 | case OP_LEAVE: | |
9828 | case OP_SCOPE: | |
9829 | case OP_LEAVEWRITE: | |
e977893f GS |
9830 | TOPPTR(nss,ix) = ptr; |
9831 | o = (OP*)ptr; | |
9832 | OpREFCNT_inc(o); | |
1d7c1841 GS |
9833 | break; |
9834 | default: | |
9835 | TOPPTR(nss,ix) = Nullop; | |
9836 | break; | |
9837 | } | |
9838 | } | |
9839 | else | |
9840 | TOPPTR(nss,ix) = Nullop; | |
9841 | break; | |
9842 | case SAVEt_FREEPV: | |
9843 | c = (char*)POPPTR(ss,ix); | |
9844 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9845 | break; | |
9846 | case SAVEt_CLEARSV: | |
9847 | longval = POPLONG(ss,ix); | |
9848 | TOPLONG(nss,ix) = longval; | |
9849 | break; | |
9850 | case SAVEt_DELETE: | |
9851 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9852 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9853 | c = (char*)POPPTR(ss,ix); |
9854 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9855 | i = POPINT(ss,ix); | |
9856 | TOPINT(nss,ix) = i; | |
9857 | break; | |
9858 | case SAVEt_DESTRUCTOR: | |
9859 | ptr = POPPTR(ss,ix); | |
9860 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9861 | dptr = POPDPTR(ss,ix); | |
ef75a179 | 9862 | TOPDPTR(nss,ix) = (void (*)(void*))any_dup((void *)dptr, proto_perl); |
1d7c1841 GS |
9863 | break; |
9864 | case SAVEt_DESTRUCTOR_X: | |
9865 | ptr = POPPTR(ss,ix); | |
9866 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9867 | dxptr = POPDXPTR(ss,ix); | |
acfe0abc | 9868 | TOPDXPTR(nss,ix) = (void (*)(pTHX_ void*))any_dup((void *)dxptr, proto_perl); |
1d7c1841 GS |
9869 | break; |
9870 | case SAVEt_REGCONTEXT: | |
9871 | case SAVEt_ALLOC: | |
9872 | i = POPINT(ss,ix); | |
9873 | TOPINT(nss,ix) = i; | |
9874 | ix -= i; | |
9875 | break; | |
9876 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
9877 | i = POPINT(ss,ix); | |
9878 | TOPINT(nss,ix) = i; | |
9879 | break; | |
9880 | case SAVEt_AELEM: /* array element */ | |
9881 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9882 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9883 | i = POPINT(ss,ix); |
9884 | TOPINT(nss,ix) = i; | |
9885 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9886 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
9887 | break; |
9888 | case SAVEt_HELEM: /* hash element */ | |
9889 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9890 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9891 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9892 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9893 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 9894 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9895 | break; |
9896 | case SAVEt_OP: | |
9897 | ptr = POPPTR(ss,ix); | |
9898 | TOPPTR(nss,ix) = ptr; | |
9899 | break; | |
9900 | case SAVEt_HINTS: | |
9901 | i = POPINT(ss,ix); | |
9902 | TOPINT(nss,ix) = i; | |
9903 | break; | |
c4410b1b GS |
9904 | case SAVEt_COMPPAD: |
9905 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9906 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 9907 | break; |
c3564e5c GS |
9908 | case SAVEt_PADSV: |
9909 | longval = (long)POPLONG(ss,ix); | |
9910 | TOPLONG(nss,ix) = longval; | |
9911 | ptr = POPPTR(ss,ix); | |
9912 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9913 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9914 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 9915 | break; |
1d7c1841 GS |
9916 | default: |
9917 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
9918 | } | |
9919 | } | |
9920 | ||
9921 | return nss; | |
9922 | } | |
9923 | ||
645c22ef DM |
9924 | /* |
9925 | =for apidoc perl_clone | |
9926 | ||
9927 | Create and return a new interpreter by cloning the current one. | |
9928 | ||
9929 | =cut | |
9930 | */ | |
9931 | ||
9932 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
3fc56081 NK |
9933 | EXTERN_C PerlInterpreter * |
9934 | perl_clone_host(PerlInterpreter* proto_perl, UV flags); | |
645c22ef | 9935 | |
1d7c1841 GS |
9936 | PerlInterpreter * |
9937 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
9938 | { | |
1d7c1841 | 9939 | #ifdef PERL_IMPLICIT_SYS |
c43294b8 AB |
9940 | |
9941 | /* perlhost.h so we need to call into it | |
9942 | to clone the host, CPerlHost should have a c interface, sky */ | |
9943 | ||
9944 | if (flags & CLONEf_CLONE_HOST) { | |
9945 | return perl_clone_host(proto_perl,flags); | |
9946 | } | |
9947 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
9948 | proto_perl->IMem, |
9949 | proto_perl->IMemShared, | |
9950 | proto_perl->IMemParse, | |
9951 | proto_perl->IEnv, | |
9952 | proto_perl->IStdIO, | |
9953 | proto_perl->ILIO, | |
9954 | proto_perl->IDir, | |
9955 | proto_perl->ISock, | |
9956 | proto_perl->IProc); | |
9957 | } | |
9958 | ||
9959 | PerlInterpreter * | |
9960 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
9961 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
9962 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
9963 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
9964 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
9965 | struct IPerlProc* ipP) | |
9966 | { | |
9967 | /* XXX many of the string copies here can be optimized if they're | |
9968 | * constants; they need to be allocated as common memory and just | |
9969 | * their pointers copied. */ | |
9970 | ||
9971 | IV i; | |
64aa0685 GS |
9972 | CLONE_PARAMS clone_params; |
9973 | CLONE_PARAMS* param = &clone_params; | |
d2d73c3e | 9974 | |
1d7c1841 | 9975 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
ba869deb | 9976 | PERL_SET_THX(my_perl); |
1d7c1841 | 9977 | |
acfe0abc | 9978 | # ifdef DEBUGGING |
a4530404 | 9979 | Poison(my_perl, 1, PerlInterpreter); |
1d7c1841 GS |
9980 | PL_markstack = 0; |
9981 | PL_scopestack = 0; | |
9982 | PL_savestack = 0; | |
9983 | PL_retstack = 0; | |
66fe0623 | 9984 | PL_sig_pending = 0; |
25596c82 | 9985 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
acfe0abc | 9986 | # else /* !DEBUGGING */ |
1d7c1841 | 9987 | Zero(my_perl, 1, PerlInterpreter); |
acfe0abc | 9988 | # endif /* DEBUGGING */ |
1d7c1841 GS |
9989 | |
9990 | /* host pointers */ | |
9991 | PL_Mem = ipM; | |
9992 | PL_MemShared = ipMS; | |
9993 | PL_MemParse = ipMP; | |
9994 | PL_Env = ipE; | |
9995 | PL_StdIO = ipStd; | |
9996 | PL_LIO = ipLIO; | |
9997 | PL_Dir = ipD; | |
9998 | PL_Sock = ipS; | |
9999 | PL_Proc = ipP; | |
1d7c1841 GS |
10000 | #else /* !PERL_IMPLICIT_SYS */ |
10001 | IV i; | |
64aa0685 GS |
10002 | CLONE_PARAMS clone_params; |
10003 | CLONE_PARAMS* param = &clone_params; | |
1d7c1841 | 10004 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 10005 | PERL_SET_THX(my_perl); |
1d7c1841 | 10006 | |
d2d73c3e AB |
10007 | |
10008 | ||
1d7c1841 | 10009 | # ifdef DEBUGGING |
a4530404 | 10010 | Poison(my_perl, 1, PerlInterpreter); |
1d7c1841 GS |
10011 | PL_markstack = 0; |
10012 | PL_scopestack = 0; | |
10013 | PL_savestack = 0; | |
10014 | PL_retstack = 0; | |
66fe0623 | 10015 | PL_sig_pending = 0; |
25596c82 | 10016 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
1d7c1841 GS |
10017 | # else /* !DEBUGGING */ |
10018 | Zero(my_perl, 1, PerlInterpreter); | |
10019 | # endif /* DEBUGGING */ | |
10020 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 10021 | param->flags = flags; |
59b40662 | 10022 | param->proto_perl = proto_perl; |
1d7c1841 GS |
10023 | |
10024 | /* arena roots */ | |
10025 | PL_xiv_arenaroot = NULL; | |
10026 | PL_xiv_root = NULL; | |
612f20c3 | 10027 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 10028 | PL_xnv_root = NULL; |
612f20c3 | 10029 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 10030 | PL_xrv_root = NULL; |
612f20c3 | 10031 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 10032 | PL_xpv_root = NULL; |
612f20c3 | 10033 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 10034 | PL_xpviv_root = NULL; |
612f20c3 | 10035 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 10036 | PL_xpvnv_root = NULL; |
612f20c3 | 10037 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 10038 | PL_xpvcv_root = NULL; |
612f20c3 | 10039 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 10040 | PL_xpvav_root = NULL; |
612f20c3 | 10041 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 10042 | PL_xpvhv_root = NULL; |
612f20c3 | 10043 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 10044 | PL_xpvmg_root = NULL; |
612f20c3 | 10045 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 10046 | PL_xpvlv_root = NULL; |
612f20c3 | 10047 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 10048 | PL_xpvbm_root = NULL; |
612f20c3 | 10049 | PL_he_arenaroot = NULL; |
1d7c1841 GS |
10050 | PL_he_root = NULL; |
10051 | PL_nice_chunk = NULL; | |
10052 | PL_nice_chunk_size = 0; | |
10053 | PL_sv_count = 0; | |
10054 | PL_sv_objcount = 0; | |
10055 | PL_sv_root = Nullsv; | |
10056 | PL_sv_arenaroot = Nullsv; | |
10057 | ||
10058 | PL_debug = proto_perl->Idebug; | |
10059 | ||
e5dd39fc | 10060 | #ifdef USE_REENTRANT_API |
59bd0823 | 10061 | Perl_reentrant_init(aTHX); |
e5dd39fc AB |
10062 | #endif |
10063 | ||
1d7c1841 GS |
10064 | /* create SV map for pointer relocation */ |
10065 | PL_ptr_table = ptr_table_new(); | |
10066 | ||
10067 | /* initialize these special pointers as early as possible */ | |
10068 | SvANY(&PL_sv_undef) = NULL; | |
10069 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
10070 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
10071 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
10072 | ||
1d7c1841 | 10073 | SvANY(&PL_sv_no) = new_XPVNV(); |
1d7c1841 GS |
10074 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
10075 | SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
10076 | SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0); | |
10077 | SvCUR(&PL_sv_no) = 0; | |
10078 | SvLEN(&PL_sv_no) = 1; | |
10079 | SvNVX(&PL_sv_no) = 0; | |
10080 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); | |
10081 | ||
1d7c1841 | 10082 | SvANY(&PL_sv_yes) = new_XPVNV(); |
1d7c1841 GS |
10083 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
10084 | SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
10085 | SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1); | |
10086 | SvCUR(&PL_sv_yes) = 1; | |
10087 | SvLEN(&PL_sv_yes) = 2; | |
10088 | SvNVX(&PL_sv_yes) = 1; | |
10089 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); | |
10090 | ||
05ec9bb3 | 10091 | /* create (a non-shared!) shared string table */ |
1d7c1841 GS |
10092 | PL_strtab = newHV(); |
10093 | HvSHAREKEYS_off(PL_strtab); | |
10094 | hv_ksplit(PL_strtab, 512); | |
10095 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); | |
10096 | ||
05ec9bb3 NIS |
10097 | PL_compiling = proto_perl->Icompiling; |
10098 | ||
10099 | /* These two PVs will be free'd special way so must set them same way op.c does */ | |
10100 | PL_compiling.cop_stashpv = savesharedpv(PL_compiling.cop_stashpv); | |
10101 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_stashpv, PL_compiling.cop_stashpv); | |
10102 | ||
10103 | PL_compiling.cop_file = savesharedpv(PL_compiling.cop_file); | |
10104 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_file, PL_compiling.cop_file); | |
10105 | ||
1d7c1841 GS |
10106 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); |
10107 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 10108 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 10109 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 10110 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
10111 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
10112 | ||
10113 | /* pseudo environmental stuff */ | |
10114 | PL_origargc = proto_perl->Iorigargc; | |
10115 | i = PL_origargc; | |
10116 | New(0, PL_origargv, i+1, char*); | |
10117 | PL_origargv[i] = '\0'; | |
10118 | while (i-- > 0) { | |
10119 | PL_origargv[i] = SAVEPV(proto_perl->Iorigargv[i]); | |
10120 | } | |
d2d73c3e | 10121 | |
d2d73c3e AB |
10122 | param->stashes = newAV(); /* Setup array of objects to call clone on */ |
10123 | ||
a1ea730d | 10124 | #ifdef PERLIO_LAYERS |
3a1ee7e8 NIS |
10125 | /* Clone PerlIO tables as soon as we can handle general xx_dup() */ |
10126 | PerlIO_clone(aTHX_ proto_perl, param); | |
a1ea730d | 10127 | #endif |
d2d73c3e AB |
10128 | |
10129 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
10130 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
10131 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 10132 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
10133 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
10134 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
10135 | |
10136 | /* switches */ | |
10137 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 10138 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
10139 | PL_localpatches = proto_perl->Ilocalpatches; |
10140 | PL_splitstr = proto_perl->Isplitstr; | |
10141 | PL_preprocess = proto_perl->Ipreprocess; | |
10142 | PL_minus_n = proto_perl->Iminus_n; | |
10143 | PL_minus_p = proto_perl->Iminus_p; | |
10144 | PL_minus_l = proto_perl->Iminus_l; | |
10145 | PL_minus_a = proto_perl->Iminus_a; | |
10146 | PL_minus_F = proto_perl->Iminus_F; | |
10147 | PL_doswitches = proto_perl->Idoswitches; | |
10148 | PL_dowarn = proto_perl->Idowarn; | |
10149 | PL_doextract = proto_perl->Idoextract; | |
10150 | PL_sawampersand = proto_perl->Isawampersand; | |
10151 | PL_unsafe = proto_perl->Iunsafe; | |
10152 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 10153 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
10154 | PL_perldb = proto_perl->Iperldb; |
10155 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
1cbb0781 | 10156 | PL_exit_flags = proto_perl->Iexit_flags; |
1d7c1841 GS |
10157 | |
10158 | /* magical thingies */ | |
10159 | /* XXX time(&PL_basetime) when asked for? */ | |
10160 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 10161 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
10162 | |
10163 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
10164 | PL_multiline = proto_perl->Imultiline; | |
10165 | PL_statusvalue = proto_perl->Istatusvalue; | |
10166 | #ifdef VMS | |
10167 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
10168 | #endif | |
0a378802 | 10169 | PL_encoding = sv_dup(proto_perl->Iencoding, param); |
1d7c1841 | 10170 | |
4a4c6fe3 | 10171 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
10172 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
10173 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
4a4c6fe3 | 10174 | |
d2f185dc AMS |
10175 | /* Clone the regex array */ |
10176 | PL_regex_padav = newAV(); | |
10177 | { | |
10178 | I32 len = av_len((AV*)proto_perl->Iregex_padav); | |
10179 | SV** regexen = AvARRAY((AV*)proto_perl->Iregex_padav); | |
0f95fc41 AB |
10180 | av_push(PL_regex_padav, |
10181 | sv_dup_inc(regexen[0],param)); | |
10182 | for(i = 1; i <= len; i++) { | |
10183 | if(SvREPADTMP(regexen[i])) { | |
10184 | av_push(PL_regex_padav, sv_dup_inc(regexen[i], param)); | |
8cf8f3d1 | 10185 | } else { |
0f95fc41 AB |
10186 | av_push(PL_regex_padav, |
10187 | SvREFCNT_inc( | |
8cf8f3d1 | 10188 | newSViv(PTR2IV(re_dup(INT2PTR(REGEXP *, |
cbfa9890 | 10189 | SvIVX(regexen[i])), param))) |
0f95fc41 AB |
10190 | )); |
10191 | } | |
d2f185dc AMS |
10192 | } |
10193 | } | |
10194 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 10195 | |
1d7c1841 | 10196 | /* shortcuts to various I/O objects */ |
d2d73c3e AB |
10197 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
10198 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
10199 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
10200 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
10201 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
10202 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
10203 | |
10204 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 10205 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
10206 | |
10207 | /* shortcuts to misc objects */ | |
d2d73c3e | 10208 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
10209 | |
10210 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
10211 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
10212 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
10213 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
10214 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
10215 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
10216 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
10217 | PL_lineary = av_dup(proto_perl->Ilineary, param); | |
10218 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
10219 | |
10220 | /* symbol tables */ | |
d2d73c3e AB |
10221 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
10222 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
10223 | PL_nullstash = hv_dup(proto_perl->Inullstash, param); | |
10224 | PL_debstash = hv_dup(proto_perl->Idebstash, param); | |
10225 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
10226 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
10227 | ||
10228 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
ee1c5a4e | 10229 | PL_beginav_save = av_dup_inc(proto_perl->Ibeginav_save, param); |
ece599bd | 10230 | PL_checkav_save = av_dup_inc(proto_perl->Icheckav_save, param); |
d2d73c3e AB |
10231 | PL_endav = av_dup_inc(proto_perl->Iendav, param); |
10232 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
10233 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
10234 | |
10235 | PL_sub_generation = proto_perl->Isub_generation; | |
10236 | ||
10237 | /* funky return mechanisms */ | |
10238 | PL_forkprocess = proto_perl->Iforkprocess; | |
10239 | ||
10240 | /* subprocess state */ | |
d2d73c3e | 10241 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
10242 | |
10243 | /* internal state */ | |
10244 | PL_tainting = proto_perl->Itainting; | |
10245 | PL_maxo = proto_perl->Imaxo; | |
10246 | if (proto_perl->Iop_mask) | |
10247 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
10248 | else | |
10249 | PL_op_mask = Nullch; | |
10250 | ||
10251 | /* current interpreter roots */ | |
d2d73c3e | 10252 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
10253 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
10254 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 10255 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
10256 | PL_eval_start = proto_perl->Ieval_start; |
10257 | ||
10258 | /* runtime control stuff */ | |
10259 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
10260 | PL_copline = proto_perl->Icopline; | |
10261 | ||
10262 | PL_filemode = proto_perl->Ifilemode; | |
10263 | PL_lastfd = proto_perl->Ilastfd; | |
10264 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
10265 | PL_Argv = NULL; | |
10266 | PL_Cmd = Nullch; | |
10267 | PL_gensym = proto_perl->Igensym; | |
10268 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 10269 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
10270 | PL_laststatval = proto_perl->Ilaststatval; |
10271 | PL_laststype = proto_perl->Ilaststype; | |
10272 | PL_mess_sv = Nullsv; | |
10273 | ||
d2d73c3e | 10274 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
10275 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
10276 | ||
10277 | /* interpreter atexit processing */ | |
10278 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
10279 | if (PL_exitlistlen) { | |
10280 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
10281 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
10282 | } | |
10283 | else | |
10284 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 10285 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
19e8ce8e AB |
10286 | PL_custom_op_names = hv_dup_inc(proto_perl->Icustom_op_names,param); |
10287 | PL_custom_op_descs = hv_dup_inc(proto_perl->Icustom_op_descs,param); | |
1d7c1841 GS |
10288 | |
10289 | PL_profiledata = NULL; | |
a8fc9800 | 10290 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<', param); |
1d7c1841 | 10291 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
d2d73c3e | 10292 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 10293 | |
d2d73c3e AB |
10294 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
10295 | PL_comppad = av_dup(proto_perl->Icomppad, param); | |
10296 | PL_comppad_name = av_dup(proto_perl->Icomppad_name, param); | |
1d7c1841 GS |
10297 | PL_comppad_name_fill = proto_perl->Icomppad_name_fill; |
10298 | PL_comppad_name_floor = proto_perl->Icomppad_name_floor; | |
10299 | PL_curpad = (SV**)ptr_table_fetch(PL_ptr_table, | |
10300 | proto_perl->Tcurpad); | |
10301 | ||
10302 | #ifdef HAVE_INTERP_INTERN | |
10303 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
10304 | #endif | |
10305 | ||
10306 | /* more statics moved here */ | |
10307 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 10308 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
10309 | |
10310 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
10311 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
10312 | ||
10313 | PL_uid = proto_perl->Iuid; | |
10314 | PL_euid = proto_perl->Ieuid; | |
10315 | PL_gid = proto_perl->Igid; | |
10316 | PL_egid = proto_perl->Iegid; | |
10317 | PL_nomemok = proto_perl->Inomemok; | |
10318 | PL_an = proto_perl->Ian; | |
10319 | PL_cop_seqmax = proto_perl->Icop_seqmax; | |
10320 | PL_op_seqmax = proto_perl->Iop_seqmax; | |
10321 | PL_evalseq = proto_perl->Ievalseq; | |
10322 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
10323 | PL_origalen = proto_perl->Iorigalen; | |
10324 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
10325 | PL_osname = SAVEPV(proto_perl->Iosname); | |
0bb09c15 | 10326 | PL_sh_path = proto_perl->Ish_path; /* XXX never deallocated */ |
1d7c1841 GS |
10327 | PL_sighandlerp = proto_perl->Isighandlerp; |
10328 | ||
10329 | ||
10330 | PL_runops = proto_perl->Irunops; | |
10331 | ||
10332 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
10333 | ||
10334 | #ifdef CSH | |
10335 | PL_cshlen = proto_perl->Icshlen; | |
74f1b2b8 | 10336 | PL_cshname = proto_perl->Icshname; /* XXX never deallocated */ |
1d7c1841 GS |
10337 | #endif |
10338 | ||
10339 | PL_lex_state = proto_perl->Ilex_state; | |
10340 | PL_lex_defer = proto_perl->Ilex_defer; | |
10341 | PL_lex_expect = proto_perl->Ilex_expect; | |
10342 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
10343 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
10344 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
10345 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
10346 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
10347 | PL_lex_op = proto_perl->Ilex_op; |
10348 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
10349 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
10350 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
10351 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
10352 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
10353 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
10354 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
10355 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
10356 | ||
10357 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
10358 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
10359 | PL_nexttoke = proto_perl->Inexttoke; | |
10360 | ||
1d773130 TB |
10361 | /* XXX This is probably masking the deeper issue of why |
10362 | * SvANY(proto_perl->Ilinestr) can be NULL at this point. For test case: | |
10363 | * http://archive.develooper.com/perl5-porters%40perl.org/msg83298.html | |
10364 | * (A little debugging with a watchpoint on it may help.) | |
10365 | */ | |
389edf32 TB |
10366 | if (SvANY(proto_perl->Ilinestr)) { |
10367 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); | |
10368 | i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); | |
10369 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10370 | i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); | |
10371 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10372 | i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); | |
10373 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10374 | i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); | |
10375 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10376 | } | |
10377 | else { | |
10378 | PL_linestr = NEWSV(65,79); | |
10379 | sv_upgrade(PL_linestr,SVt_PVIV); | |
10380 | sv_setpvn(PL_linestr,"",0); | |
10381 | PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
10382 | } | |
1d7c1841 | 10383 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
1d7c1841 GS |
10384 | PL_pending_ident = proto_perl->Ipending_ident; |
10385 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
10386 | ||
10387 | PL_expect = proto_perl->Iexpect; | |
10388 | ||
10389 | PL_multi_start = proto_perl->Imulti_start; | |
10390 | PL_multi_end = proto_perl->Imulti_end; | |
10391 | PL_multi_open = proto_perl->Imulti_open; | |
10392 | PL_multi_close = proto_perl->Imulti_close; | |
10393 | ||
10394 | PL_error_count = proto_perl->Ierror_count; | |
10395 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 10396 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 GS |
10397 | |
10398 | PL_min_intro_pending = proto_perl->Imin_intro_pending; | |
10399 | PL_max_intro_pending = proto_perl->Imax_intro_pending; | |
10400 | PL_padix = proto_perl->Ipadix; | |
10401 | PL_padix_floor = proto_perl->Ipadix_floor; | |
10402 | PL_pad_reset_pending = proto_perl->Ipad_reset_pending; | |
10403 | ||
1d773130 | 10404 | /* XXX See comment on SvANY(proto_perl->Ilinestr) above */ |
389edf32 TB |
10405 | if (SvANY(proto_perl->Ilinestr)) { |
10406 | i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); | |
10407 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10408 | i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); | |
10409 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10410 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
10411 | } | |
10412 | else { | |
10413 | PL_last_uni = SvPVX(PL_linestr); | |
10414 | PL_last_lop = SvPVX(PL_linestr); | |
10415 | PL_last_lop_op = 0; | |
10416 | } | |
1d7c1841 | 10417 | PL_in_my = proto_perl->Iin_my; |
d2d73c3e | 10418 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
10419 | #ifdef FCRYPT |
10420 | PL_cryptseen = proto_perl->Icryptseen; | |
10421 | #endif | |
10422 | ||
10423 | PL_hints = proto_perl->Ihints; | |
10424 | ||
10425 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
10426 | ||
10427 | #ifdef USE_LOCALE_COLLATE | |
10428 | PL_collation_ix = proto_perl->Icollation_ix; | |
10429 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
10430 | PL_collation_standard = proto_perl->Icollation_standard; | |
10431 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
10432 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
10433 | #endif /* USE_LOCALE_COLLATE */ | |
10434 | ||
10435 | #ifdef USE_LOCALE_NUMERIC | |
10436 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
10437 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
10438 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 10439 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
10440 | #endif /* !USE_LOCALE_NUMERIC */ |
10441 | ||
10442 | /* utf8 character classes */ | |
d2d73c3e AB |
10443 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
10444 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
10445 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
10446 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
10447 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
10448 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
10449 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
10450 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
10451 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
10452 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
10453 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
10454 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
10455 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
10456 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
10457 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
10458 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
10459 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
b4e400f9 | 10460 | PL_utf8_tofold = sv_dup_inc(proto_perl->Iutf8_tofold, param); |
82686b01 JH |
10461 | PL_utf8_idstart = sv_dup_inc(proto_perl->Iutf8_idstart, param); |
10462 | PL_utf8_idcont = sv_dup_inc(proto_perl->Iutf8_idcont, param); | |
1d7c1841 GS |
10463 | |
10464 | /* swatch cache */ | |
10465 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
10466 | PL_last_swash_klen = 0; | |
10467 | PL_last_swash_key[0]= '\0'; | |
10468 | PL_last_swash_tmps = (U8*)NULL; | |
10469 | PL_last_swash_slen = 0; | |
10470 | ||
10471 | /* perly.c globals */ | |
10472 | PL_yydebug = proto_perl->Iyydebug; | |
10473 | PL_yynerrs = proto_perl->Iyynerrs; | |
10474 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
10475 | PL_yychar = proto_perl->Iyychar; | |
10476 | PL_yyval = proto_perl->Iyyval; | |
10477 | PL_yylval = proto_perl->Iyylval; | |
10478 | ||
10479 | PL_glob_index = proto_perl->Iglob_index; | |
10480 | PL_srand_called = proto_perl->Isrand_called; | |
10481 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
10482 | PL_bitcount = Nullch; /* reinits on demand */ | |
10483 | ||
66fe0623 NIS |
10484 | if (proto_perl->Ipsig_pend) { |
10485 | Newz(0, PL_psig_pend, SIG_SIZE, int); | |
9dd79c3f | 10486 | } |
66fe0623 NIS |
10487 | else { |
10488 | PL_psig_pend = (int*)NULL; | |
10489 | } | |
10490 | ||
1d7c1841 | 10491 | if (proto_perl->Ipsig_ptr) { |
76d3c696 JH |
10492 | Newz(0, PL_psig_ptr, SIG_SIZE, SV*); |
10493 | Newz(0, PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 10494 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
10495 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
10496 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
10497 | } |
10498 | } | |
10499 | else { | |
10500 | PL_psig_ptr = (SV**)NULL; | |
10501 | PL_psig_name = (SV**)NULL; | |
10502 | } | |
10503 | ||
10504 | /* thrdvar.h stuff */ | |
10505 | ||
a0739874 | 10506 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
10507 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
10508 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
10509 | PL_tmps_max = proto_perl->Ttmps_max; | |
10510 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
10511 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
10512 | i = 0; | |
10513 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 10514 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
10515 | ++i; |
10516 | } | |
10517 | ||
10518 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
10519 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
10520 | Newz(54, PL_markstack, i, I32); | |
10521 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
10522 | - proto_perl->Tmarkstack); | |
10523 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
10524 | - proto_perl->Tmarkstack); | |
10525 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
10526 | PL_markstack_ptr - PL_markstack + 1, I32); | |
10527 | ||
10528 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
10529 | * NOTE: unlike the others! */ | |
10530 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
10531 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
10532 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
10533 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
10534 | ||
10535 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
10536 | * NOTE: unlike the others! */ | |
10537 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
10538 | PL_retstack_max = proto_perl->Tretstack_max; | |
10539 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
ce0a1ae0 | 10540 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, OP*); |
1d7c1841 GS |
10541 | |
10542 | /* NOTE: si_dup() looks at PL_markstack */ | |
d2d73c3e | 10543 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
10544 | |
10545 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
10546 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
10547 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
10548 | |
10549 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
10550 | PL_stack_base = AvARRAY(PL_curstack); | |
10551 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
10552 | - proto_perl->Tstack_base); | |
10553 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
10554 | ||
10555 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
10556 | * NOTE: unlike the others! */ | |
10557 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
10558 | PL_savestack_max = proto_perl->Tsavestack_max; | |
10559 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
d2d73c3e | 10560 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
10561 | } |
10562 | else { | |
10563 | init_stacks(); | |
985e7056 | 10564 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
10565 | } |
10566 | ||
10567 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
10568 | PL_top_env = &PL_start_env; | |
10569 | ||
10570 | PL_op = proto_perl->Top; | |
10571 | ||
10572 | PL_Sv = Nullsv; | |
10573 | PL_Xpv = (XPV*)NULL; | |
10574 | PL_na = proto_perl->Tna; | |
10575 | ||
10576 | PL_statbuf = proto_perl->Tstatbuf; | |
10577 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
10578 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
10579 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
10580 | #ifdef HAS_TIMES |
10581 | PL_timesbuf = proto_perl->Ttimesbuf; | |
10582 | #endif | |
10583 | ||
10584 | PL_tainted = proto_perl->Ttainted; | |
10585 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
10586 | PL_rs = sv_dup_inc(proto_perl->Trs, param); |
10587 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
10588 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
10589 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 10590 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
10591 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
10592 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
10593 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
10594 | |
10595 | PL_restartop = proto_perl->Trestartop; | |
10596 | PL_in_eval = proto_perl->Tin_eval; | |
10597 | PL_delaymagic = proto_perl->Tdelaymagic; | |
10598 | PL_dirty = proto_perl->Tdirty; | |
10599 | PL_localizing = proto_perl->Tlocalizing; | |
10600 | ||
14dd3ad8 | 10601 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 10602 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 10603 | #endif |
d2d73c3e | 10604 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
1d7c1841 GS |
10605 | PL_av_fetch_sv = Nullsv; |
10606 | PL_hv_fetch_sv = Nullsv; | |
10607 | Zero(&PL_hv_fetch_ent_mh, 1, HE); /* XXX */ | |
10608 | PL_modcount = proto_perl->Tmodcount; | |
10609 | PL_lastgotoprobe = Nullop; | |
10610 | PL_dumpindent = proto_perl->Tdumpindent; | |
10611 | ||
10612 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
10613 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
10614 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
10615 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
10616 | PL_sortcxix = proto_perl->Tsortcxix; |
10617 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
10618 | PL_efloatsize = 0; /* reinits on demand */ | |
10619 | ||
10620 | /* regex stuff */ | |
10621 | ||
10622 | PL_screamfirst = NULL; | |
10623 | PL_screamnext = NULL; | |
10624 | PL_maxscream = -1; /* reinits on demand */ | |
10625 | PL_lastscream = Nullsv; | |
10626 | ||
10627 | PL_watchaddr = NULL; | |
10628 | PL_watchok = Nullch; | |
10629 | ||
10630 | PL_regdummy = proto_perl->Tregdummy; | |
10631 | PL_regcomp_parse = Nullch; | |
10632 | PL_regxend = Nullch; | |
10633 | PL_regcode = (regnode*)NULL; | |
10634 | PL_regnaughty = 0; | |
10635 | PL_regsawback = 0; | |
10636 | PL_regprecomp = Nullch; | |
10637 | PL_regnpar = 0; | |
10638 | PL_regsize = 0; | |
10639 | PL_regflags = 0; | |
10640 | PL_regseen = 0; | |
10641 | PL_seen_zerolen = 0; | |
10642 | PL_seen_evals = 0; | |
10643 | PL_regcomp_rx = (regexp*)NULL; | |
10644 | PL_extralen = 0; | |
10645 | PL_colorset = 0; /* reinits PL_colors[] */ | |
10646 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
10647 | PL_reg_whilem_seen = 0; | |
10648 | PL_reginput = Nullch; | |
10649 | PL_regbol = Nullch; | |
10650 | PL_regeol = Nullch; | |
10651 | PL_regstartp = (I32*)NULL; | |
10652 | PL_regendp = (I32*)NULL; | |
10653 | PL_reglastparen = (U32*)NULL; | |
10654 | PL_regtill = Nullch; | |
1d7c1841 GS |
10655 | PL_reg_start_tmp = (char**)NULL; |
10656 | PL_reg_start_tmpl = 0; | |
10657 | PL_regdata = (struct reg_data*)NULL; | |
10658 | PL_bostr = Nullch; | |
10659 | PL_reg_flags = 0; | |
10660 | PL_reg_eval_set = 0; | |
10661 | PL_regnarrate = 0; | |
10662 | PL_regprogram = (regnode*)NULL; | |
10663 | PL_regindent = 0; | |
10664 | PL_regcc = (CURCUR*)NULL; | |
10665 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
10666 | PL_reg_re = (regexp*)NULL; | |
10667 | PL_reg_ganch = Nullch; | |
10668 | PL_reg_sv = Nullsv; | |
53c4c00c | 10669 | PL_reg_match_utf8 = FALSE; |
1d7c1841 GS |
10670 | PL_reg_magic = (MAGIC*)NULL; |
10671 | PL_reg_oldpos = 0; | |
10672 | PL_reg_oldcurpm = (PMOP*)NULL; | |
10673 | PL_reg_curpm = (PMOP*)NULL; | |
10674 | PL_reg_oldsaved = Nullch; | |
10675 | PL_reg_oldsavedlen = 0; | |
10676 | PL_reg_maxiter = 0; | |
10677 | PL_reg_leftiter = 0; | |
10678 | PL_reg_poscache = Nullch; | |
10679 | PL_reg_poscache_size= 0; | |
10680 | ||
10681 | /* RE engine - function pointers */ | |
10682 | PL_regcompp = proto_perl->Tregcompp; | |
10683 | PL_regexecp = proto_perl->Tregexecp; | |
10684 | PL_regint_start = proto_perl->Tregint_start; | |
10685 | PL_regint_string = proto_perl->Tregint_string; | |
10686 | PL_regfree = proto_perl->Tregfree; | |
10687 | ||
10688 | PL_reginterp_cnt = 0; | |
10689 | PL_reg_starttry = 0; | |
10690 | ||
a2efc822 SC |
10691 | /* Pluggable optimizer */ |
10692 | PL_peepp = proto_perl->Tpeepp; | |
10693 | ||
a0739874 DM |
10694 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
10695 | ptr_table_free(PL_ptr_table); | |
10696 | PL_ptr_table = NULL; | |
10697 | } | |
8cf8f3d1 | 10698 | |
f284b03f AMS |
10699 | /* Call the ->CLONE method, if it exists, for each of the stashes |
10700 | identified by sv_dup() above. | |
10701 | */ | |
d2d73c3e AB |
10702 | while(av_len(param->stashes) != -1) { |
10703 | HV* stash = (HV*) av_shift(param->stashes); | |
f284b03f AMS |
10704 | GV* cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); |
10705 | if (cloner && GvCV(cloner)) { | |
10706 | dSP; | |
10707 | ENTER; | |
10708 | SAVETMPS; | |
10709 | PUSHMARK(SP); | |
dc507217 | 10710 | XPUSHs(sv_2mortal(newSVpv(HvNAME(stash), 0))); |
f284b03f AMS |
10711 | PUTBACK; |
10712 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
10713 | FREETMPS; | |
10714 | LEAVE; | |
10715 | } | |
4a09accc | 10716 | } |
a0739874 | 10717 | |
dc507217 | 10718 | SvREFCNT_dec(param->stashes); |
dc507217 | 10719 | |
1d7c1841 | 10720 | return my_perl; |
1d7c1841 GS |
10721 | } |
10722 | ||
1d7c1841 | 10723 | #endif /* USE_ITHREADS */ |
a0ae6670 | 10724 | |
9f4817db | 10725 | /* |
ccfc67b7 JH |
10726 | =head1 Unicode Support |
10727 | ||
9f4817db JH |
10728 | =for apidoc sv_recode_to_utf8 |
10729 | ||
5d170f3a JH |
10730 | The encoding is assumed to be an Encode object, on entry the PV |
10731 | of the sv is assumed to be octets in that encoding, and the sv | |
10732 | will be converted into Unicode (and UTF-8). | |
9f4817db | 10733 | |
5d170f3a JH |
10734 | If the sv already is UTF-8 (or if it is not POK), or if the encoding |
10735 | is not a reference, nothing is done to the sv. If the encoding is not | |
1768d7eb JH |
10736 | an C<Encode::XS> Encoding object, bad things will happen. |
10737 | (See F<lib/encoding.pm> and L<Encode>). | |
9f4817db | 10738 | |
5d170f3a | 10739 | The PV of the sv is returned. |
9f4817db | 10740 | |
5d170f3a JH |
10741 | =cut */ |
10742 | ||
10743 | char * | |
10744 | Perl_sv_recode_to_utf8(pTHX_ SV *sv, SV *encoding) | |
10745 | { | |
f9893866 | 10746 | if (SvPOK(sv) && !DO_UTF8(sv) && SvROK(encoding)) { |
5d170f3a JH |
10747 | SV *uni; |
10748 | STRLEN len; | |
10749 | char *s; | |
10750 | dSP; | |
10751 | ENTER; | |
10752 | SAVETMPS; | |
10753 | PUSHMARK(sp); | |
10754 | EXTEND(SP, 3); | |
10755 | XPUSHs(encoding); | |
10756 | XPUSHs(sv); | |
f9893866 NIS |
10757 | /* |
10758 | NI-S 2002/07/09 | |
10759 | Passing sv_yes is wrong - it needs to be or'ed set of constants | |
10760 | for Encode::XS, while UTf-8 decode (currently) assumes a true value means | |
10761 | remove converted chars from source. | |
10762 | ||
10763 | Both will default the value - let them. | |
10764 | ||
5d170f3a | 10765 | XPUSHs(&PL_sv_yes); |
f9893866 | 10766 | */ |
5d170f3a JH |
10767 | PUTBACK; |
10768 | call_method("decode", G_SCALAR); | |
10769 | SPAGAIN; | |
10770 | uni = POPs; | |
10771 | PUTBACK; | |
3e169325 | 10772 | s = SvPV(uni, len); |
5d170f3a | 10773 | if (s != SvPVX(sv)) { |
13817fc8 | 10774 | SvGROW(sv, len + 1); |
5d170f3a JH |
10775 | Move(s, SvPVX(sv), len, char); |
10776 | SvCUR_set(sv, len); | |
13817fc8 | 10777 | SvPVX(sv)[len] = 0; |
5d170f3a JH |
10778 | } |
10779 | FREETMPS; | |
10780 | LEAVE; | |
10781 | SvUTF8_on(sv); | |
f9893866 NIS |
10782 | } |
10783 | return SvPVX(sv); | |
9f4817db JH |
10784 | } |
10785 | ||
68795e93 | 10786 | |
f9893866 | 10787 |