Commit | Line | Data |
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a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
eb1102fc | 3 | * Copyright (c) 1991-2002, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e | 8 | * "I wonder what the Entish is for 'yes' and 'no'," he thought. |
645c22ef DM |
9 | * |
10 | * | |
5e045b90 AMS |
11 | * This file contains the code that creates, manipulates and destroys |
12 | * scalar values (SVs). The other types (AV, HV, GV, etc.) reuse the | |
13 | * structure of an SV, so their creation and destruction is handled | |
14 | * here; higher-level functions are in av.c, hv.c, and so on. Opcode | |
15 | * level functions (eg. substr, split, join) for each of the types are | |
16 | * in the pp*.c files. | |
79072805 LW |
17 | */ |
18 | ||
19 | #include "EXTERN.h" | |
864dbfa3 | 20 | #define PERL_IN_SV_C |
79072805 | 21 | #include "perl.h" |
d2f185dc | 22 | #include "regcomp.h" |
79072805 | 23 | |
51371543 | 24 | #define FCALL *f |
6fc92669 | 25 | #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_force_normal(sv) |
2c5424a7 | 26 | |
645c22ef DM |
27 | |
28 | /* ============================================================================ | |
29 | ||
30 | =head1 Allocation and deallocation of SVs. | |
31 | ||
5e045b90 AMS |
32 | An SV (or AV, HV, etc.) is allocated in two parts: the head (struct sv, |
33 | av, hv...) contains type and reference count information, as well as a | |
34 | pointer to the body (struct xrv, xpv, xpviv...), which contains fields | |
35 | specific to each type. | |
36 | ||
37 | Normally, this allocation is done using arenas, which are approximately | |
38 | 1K chunks of memory parcelled up into N heads or bodies. The first slot | |
39 | in each arena is reserved, and is used to hold a link to the next arena. | |
40 | In the case of heads, the unused first slot also contains some flags and | |
41 | a note of the number of slots. Snaked through each arena chain is a | |
42 | linked list of free items; when this becomes empty, an extra arena is | |
43 | allocated and divided up into N items which are threaded into the free | |
44 | list. | |
645c22ef DM |
45 | |
46 | The following global variables are associated with arenas: | |
47 | ||
48 | PL_sv_arenaroot pointer to list of SV arenas | |
49 | PL_sv_root pointer to list of free SV structures | |
50 | ||
51 | PL_foo_arenaroot pointer to list of foo arenas, | |
52 | PL_foo_root pointer to list of free foo bodies | |
53 | ... for foo in xiv, xnv, xrv, xpv etc. | |
54 | ||
55 | Note that some of the larger and more rarely used body types (eg xpvio) | |
56 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
57 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
58 | with all items individually malloc()ed. In addition, a few SV heads are | |
59 | not allocated from an arena, but are instead directly created as static | |
60 | or auto variables, eg PL_sv_undef. | |
61 | ||
62 | The SV arena serves the secondary purpose of allowing still-live SVs | |
63 | to be located and destroyed during final cleanup. | |
64 | ||
65 | At the lowest level, the macros new_SV() and del_SV() grab and free | |
66 | an SV head. (If debugging with -DD, del_SV() calls the function S_del_sv() | |
67 | to return the SV to the free list with error checking.) new_SV() calls | |
68 | more_sv() / sv_add_arena() to add an extra arena if the free list is empty. | |
69 | SVs in the free list have their SvTYPE field set to all ones. | |
70 | ||
71 | Similarly, there are macros new_XIV()/del_XIV(), new_XNV()/del_XNV() etc | |
72 | that allocate and return individual body types. Normally these are mapped | |
ff276b08 RG |
73 | to the arena-manipulating functions new_xiv()/del_xiv() etc, but may be |
74 | instead mapped directly to malloc()/free() if PURIFY is defined. The | |
645c22ef DM |
75 | new/del functions remove from, or add to, the appropriate PL_foo_root |
76 | list, and call more_xiv() etc to add a new arena if the list is empty. | |
77 | ||
ff276b08 | 78 | At the time of very final cleanup, sv_free_arenas() is called from |
645c22ef DM |
79 | perl_destruct() to physically free all the arenas allocated since the |
80 | start of the interpreter. Note that this also clears PL_he_arenaroot, | |
81 | which is otherwise dealt with in hv.c. | |
82 | ||
83 | Manipulation of any of the PL_*root pointers is protected by enclosing | |
84 | LOCK_SV_MUTEX; ... UNLOCK_SV_MUTEX calls which should Do the Right Thing | |
85 | if threads are enabled. | |
86 | ||
87 | The function visit() scans the SV arenas list, and calls a specified | |
88 | function for each SV it finds which is still live - ie which has an SvTYPE | |
89 | other than all 1's, and a non-zero SvREFCNT. visit() is used by the | |
90 | following functions (specified as [function that calls visit()] / [function | |
91 | called by visit() for each SV]): | |
92 | ||
93 | sv_report_used() / do_report_used() | |
94 | dump all remaining SVs (debugging aid) | |
95 | ||
96 | sv_clean_objs() / do_clean_objs(),do_clean_named_objs() | |
97 | Attempt to free all objects pointed to by RVs, | |
98 | and, unless DISABLE_DESTRUCTOR_KLUDGE is defined, | |
99 | try to do the same for all objects indirectly | |
100 | referenced by typeglobs too. Called once from | |
101 | perl_destruct(), prior to calling sv_clean_all() | |
102 | below. | |
103 | ||
104 | sv_clean_all() / do_clean_all() | |
105 | SvREFCNT_dec(sv) each remaining SV, possibly | |
106 | triggering an sv_free(). It also sets the | |
107 | SVf_BREAK flag on the SV to indicate that the | |
108 | refcnt has been artificially lowered, and thus | |
109 | stopping sv_free() from giving spurious warnings | |
110 | about SVs which unexpectedly have a refcnt | |
111 | of zero. called repeatedly from perl_destruct() | |
112 | until there are no SVs left. | |
113 | ||
114 | =head2 Summary | |
115 | ||
116 | Private API to rest of sv.c | |
117 | ||
118 | new_SV(), del_SV(), | |
119 | ||
120 | new_XIV(), del_XIV(), | |
121 | new_XNV(), del_XNV(), | |
122 | etc | |
123 | ||
124 | Public API: | |
125 | ||
8cf8f3d1 | 126 | sv_report_used(), sv_clean_objs(), sv_clean_all(), sv_free_arenas() |
645c22ef DM |
127 | |
128 | ||
129 | =cut | |
130 | ||
131 | ============================================================================ */ | |
132 | ||
133 | ||
51371543 | 134 | |
4561caa4 CS |
135 | /* |
136 | * "A time to plant, and a time to uproot what was planted..." | |
137 | */ | |
138 | ||
053fc874 GS |
139 | #define plant_SV(p) \ |
140 | STMT_START { \ | |
141 | SvANY(p) = (void *)PL_sv_root; \ | |
142 | SvFLAGS(p) = SVTYPEMASK; \ | |
143 | PL_sv_root = (p); \ | |
144 | --PL_sv_count; \ | |
145 | } STMT_END | |
a0d0e21e | 146 | |
fba3b22e | 147 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
148 | #define uproot_SV(p) \ |
149 | STMT_START { \ | |
150 | (p) = PL_sv_root; \ | |
151 | PL_sv_root = (SV*)SvANY(p); \ | |
152 | ++PL_sv_count; \ | |
153 | } STMT_END | |
154 | ||
645c22ef DM |
155 | |
156 | /* new_SV(): return a new, empty SV head */ | |
157 | ||
053fc874 GS |
158 | #define new_SV(p) \ |
159 | STMT_START { \ | |
160 | LOCK_SV_MUTEX; \ | |
161 | if (PL_sv_root) \ | |
162 | uproot_SV(p); \ | |
163 | else \ | |
164 | (p) = more_sv(); \ | |
165 | UNLOCK_SV_MUTEX; \ | |
166 | SvANY(p) = 0; \ | |
167 | SvREFCNT(p) = 1; \ | |
168 | SvFLAGS(p) = 0; \ | |
169 | } STMT_END | |
463ee0b2 | 170 | |
645c22ef DM |
171 | |
172 | /* del_SV(): return an empty SV head to the free list */ | |
173 | ||
a0d0e21e | 174 | #ifdef DEBUGGING |
4561caa4 | 175 | |
053fc874 GS |
176 | #define del_SV(p) \ |
177 | STMT_START { \ | |
178 | LOCK_SV_MUTEX; \ | |
aea4f609 | 179 | if (DEBUG_D_TEST) \ |
053fc874 GS |
180 | del_sv(p); \ |
181 | else \ | |
182 | plant_SV(p); \ | |
183 | UNLOCK_SV_MUTEX; \ | |
184 | } STMT_END | |
a0d0e21e | 185 | |
76e3520e | 186 | STATIC void |
cea2e8a9 | 187 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 188 | { |
aea4f609 | 189 | if (DEBUG_D_TEST) { |
4633a7c4 | 190 | SV* sva; |
a0d0e21e LW |
191 | SV* sv; |
192 | SV* svend; | |
193 | int ok = 0; | |
3280af22 | 194 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
195 | sv = sva + 1; |
196 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
197 | if (p >= sv && p < svend) |
198 | ok = 1; | |
199 | } | |
200 | if (!ok) { | |
0453d815 | 201 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 202 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
1d7c1841 GS |
203 | "Attempt to free non-arena SV: 0x%"UVxf, |
204 | PTR2UV(p)); | |
a0d0e21e LW |
205 | return; |
206 | } | |
207 | } | |
4561caa4 | 208 | plant_SV(p); |
463ee0b2 | 209 | } |
a0d0e21e | 210 | |
4561caa4 CS |
211 | #else /* ! DEBUGGING */ |
212 | ||
213 | #define del_SV(p) plant_SV(p) | |
214 | ||
215 | #endif /* DEBUGGING */ | |
463ee0b2 | 216 | |
645c22ef DM |
217 | |
218 | /* | |
ccfc67b7 JH |
219 | =head1 SV Manipulation Functions |
220 | ||
645c22ef DM |
221 | =for apidoc sv_add_arena |
222 | ||
223 | Given a chunk of memory, link it to the head of the list of arenas, | |
224 | and split it into a list of free SVs. | |
225 | ||
226 | =cut | |
227 | */ | |
228 | ||
4633a7c4 | 229 | void |
864dbfa3 | 230 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 231 | { |
4633a7c4 | 232 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
233 | register SV* sv; |
234 | register SV* svend; | |
14dd3ad8 | 235 | Zero(ptr, size, char); |
4633a7c4 LW |
236 | |
237 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 238 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
239 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
240 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
241 | ||
3280af22 NIS |
242 | PL_sv_arenaroot = sva; |
243 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
244 | |
245 | svend = &sva[SvREFCNT(sva) - 1]; | |
246 | sv = sva + 1; | |
463ee0b2 | 247 | while (sv < svend) { |
a0d0e21e | 248 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 | 249 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
250 | sv++; |
251 | } | |
252 | SvANY(sv) = 0; | |
4633a7c4 LW |
253 | SvFLAGS(sv) = SVTYPEMASK; |
254 | } | |
255 | ||
645c22ef DM |
256 | /* make some more SVs by adding another arena */ |
257 | ||
fba3b22e | 258 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 259 | STATIC SV* |
cea2e8a9 | 260 | S_more_sv(pTHX) |
4633a7c4 | 261 | { |
4561caa4 CS |
262 | register SV* sv; |
263 | ||
3280af22 NIS |
264 | if (PL_nice_chunk) { |
265 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
266 | PL_nice_chunk = Nullch; | |
30ad99e7 | 267 | PL_nice_chunk_size = 0; |
c07a80fd | 268 | } |
1edc1566 | 269 | else { |
270 | char *chunk; /* must use New here to match call to */ | |
271 | New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ | |
272 | sv_add_arena(chunk, 1008, 0); | |
273 | } | |
4561caa4 CS |
274 | uproot_SV(sv); |
275 | return sv; | |
463ee0b2 LW |
276 | } |
277 | ||
ff276b08 | 278 | /* visit(): call the named function for each non-free SV in the arenas. */ |
645c22ef | 279 | |
5226ed68 | 280 | STATIC I32 |
cea2e8a9 | 281 | S_visit(pTHX_ SVFUNC_t f) |
8990e307 | 282 | { |
4633a7c4 | 283 | SV* sva; |
8990e307 LW |
284 | SV* sv; |
285 | register SV* svend; | |
5226ed68 | 286 | I32 visited = 0; |
8990e307 | 287 | |
3280af22 | 288 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 289 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 | 290 | for (sv = sva + 1; sv < svend; ++sv) { |
f25c30a3 | 291 | if (SvTYPE(sv) != SVTYPEMASK && SvREFCNT(sv)) { |
acfe0abc | 292 | (FCALL)(aTHX_ sv); |
5226ed68 JH |
293 | ++visited; |
294 | } | |
8990e307 LW |
295 | } |
296 | } | |
5226ed68 | 297 | return visited; |
8990e307 LW |
298 | } |
299 | ||
758a08c3 JH |
300 | #ifdef DEBUGGING |
301 | ||
645c22ef DM |
302 | /* called by sv_report_used() for each live SV */ |
303 | ||
304 | static void | |
acfe0abc | 305 | do_report_used(pTHX_ SV *sv) |
645c22ef DM |
306 | { |
307 | if (SvTYPE(sv) != SVTYPEMASK) { | |
308 | PerlIO_printf(Perl_debug_log, "****\n"); | |
309 | sv_dump(sv); | |
310 | } | |
311 | } | |
758a08c3 | 312 | #endif |
645c22ef DM |
313 | |
314 | /* | |
315 | =for apidoc sv_report_used | |
316 | ||
317 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
318 | ||
319 | =cut | |
320 | */ | |
321 | ||
8990e307 | 322 | void |
864dbfa3 | 323 | Perl_sv_report_used(pTHX) |
4561caa4 | 324 | { |
ff270d3a | 325 | #ifdef DEBUGGING |
0b94c7bb | 326 | visit(do_report_used); |
ff270d3a | 327 | #endif |
4561caa4 CS |
328 | } |
329 | ||
645c22ef DM |
330 | /* called by sv_clean_objs() for each live SV */ |
331 | ||
332 | static void | |
acfe0abc | 333 | do_clean_objs(pTHX_ SV *sv) |
645c22ef DM |
334 | { |
335 | SV* rv; | |
336 | ||
337 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
338 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv))); | |
339 | if (SvWEAKREF(sv)) { | |
340 | sv_del_backref(sv); | |
341 | SvWEAKREF_off(sv); | |
342 | SvRV(sv) = 0; | |
343 | } else { | |
344 | SvROK_off(sv); | |
345 | SvRV(sv) = 0; | |
346 | SvREFCNT_dec(rv); | |
347 | } | |
348 | } | |
349 | ||
350 | /* XXX Might want to check arrays, etc. */ | |
351 | } | |
352 | ||
353 | /* called by sv_clean_objs() for each live SV */ | |
354 | ||
355 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
356 | static void | |
acfe0abc | 357 | do_clean_named_objs(pTHX_ SV *sv) |
645c22ef DM |
358 | { |
359 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
360 | if ( SvOBJECT(GvSV(sv)) || | |
361 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || | |
362 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
363 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
364 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
365 | { | |
366 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
367 | SvREFCNT_dec(sv); | |
368 | } | |
369 | } | |
370 | } | |
371 | #endif | |
372 | ||
373 | /* | |
374 | =for apidoc sv_clean_objs | |
375 | ||
376 | Attempt to destroy all objects not yet freed | |
377 | ||
378 | =cut | |
379 | */ | |
380 | ||
4561caa4 | 381 | void |
864dbfa3 | 382 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 383 | { |
3280af22 | 384 | PL_in_clean_objs = TRUE; |
0b94c7bb | 385 | visit(do_clean_objs); |
4561caa4 | 386 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 387 | /* some barnacles may yet remain, clinging to typeglobs */ |
0b94c7bb | 388 | visit(do_clean_named_objs); |
4561caa4 | 389 | #endif |
3280af22 | 390 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
391 | } |
392 | ||
645c22ef DM |
393 | /* called by sv_clean_all() for each live SV */ |
394 | ||
395 | static void | |
acfe0abc | 396 | do_clean_all(pTHX_ SV *sv) |
645c22ef DM |
397 | { |
398 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
399 | SvFLAGS(sv) |= SVf_BREAK; | |
400 | SvREFCNT_dec(sv); | |
401 | } | |
402 | ||
403 | /* | |
404 | =for apidoc sv_clean_all | |
405 | ||
406 | Decrement the refcnt of each remaining SV, possibly triggering a | |
407 | cleanup. This function may have to be called multiple times to free | |
ff276b08 | 408 | SVs which are in complex self-referential hierarchies. |
645c22ef DM |
409 | |
410 | =cut | |
411 | */ | |
412 | ||
5226ed68 | 413 | I32 |
864dbfa3 | 414 | Perl_sv_clean_all(pTHX) |
8990e307 | 415 | { |
5226ed68 | 416 | I32 cleaned; |
3280af22 | 417 | PL_in_clean_all = TRUE; |
5226ed68 | 418 | cleaned = visit(do_clean_all); |
3280af22 | 419 | PL_in_clean_all = FALSE; |
5226ed68 | 420 | return cleaned; |
8990e307 | 421 | } |
463ee0b2 | 422 | |
645c22ef DM |
423 | /* |
424 | =for apidoc sv_free_arenas | |
425 | ||
426 | Deallocate the memory used by all arenas. Note that all the individual SV | |
427 | heads and bodies within the arenas must already have been freed. | |
428 | ||
429 | =cut | |
430 | */ | |
431 | ||
4633a7c4 | 432 | void |
864dbfa3 | 433 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
434 | { |
435 | SV* sva; | |
436 | SV* svanext; | |
612f20c3 | 437 | XPV *arena, *arenanext; |
4633a7c4 LW |
438 | |
439 | /* Free arenas here, but be careful about fake ones. (We assume | |
440 | contiguity of the fake ones with the corresponding real ones.) */ | |
441 | ||
3280af22 | 442 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
443 | svanext = (SV*) SvANY(sva); |
444 | while (svanext && SvFAKE(svanext)) | |
445 | svanext = (SV*) SvANY(svanext); | |
446 | ||
447 | if (!SvFAKE(sva)) | |
1edc1566 | 448 | Safefree((void *)sva); |
4633a7c4 | 449 | } |
5f05dabc | 450 | |
612f20c3 GS |
451 | for (arena = PL_xiv_arenaroot; arena; arena = arenanext) { |
452 | arenanext = (XPV*)arena->xpv_pv; | |
453 | Safefree(arena); | |
454 | } | |
455 | PL_xiv_arenaroot = 0; | |
456 | ||
457 | for (arena = PL_xnv_arenaroot; arena; arena = arenanext) { | |
458 | arenanext = (XPV*)arena->xpv_pv; | |
459 | Safefree(arena); | |
460 | } | |
461 | PL_xnv_arenaroot = 0; | |
462 | ||
463 | for (arena = PL_xrv_arenaroot; arena; arena = arenanext) { | |
464 | arenanext = (XPV*)arena->xpv_pv; | |
465 | Safefree(arena); | |
466 | } | |
467 | PL_xrv_arenaroot = 0; | |
468 | ||
469 | for (arena = PL_xpv_arenaroot; arena; arena = arenanext) { | |
470 | arenanext = (XPV*)arena->xpv_pv; | |
471 | Safefree(arena); | |
472 | } | |
473 | PL_xpv_arenaroot = 0; | |
474 | ||
475 | for (arena = (XPV*)PL_xpviv_arenaroot; arena; arena = arenanext) { | |
476 | arenanext = (XPV*)arena->xpv_pv; | |
477 | Safefree(arena); | |
478 | } | |
479 | PL_xpviv_arenaroot = 0; | |
480 | ||
481 | for (arena = (XPV*)PL_xpvnv_arenaroot; arena; arena = arenanext) { | |
482 | arenanext = (XPV*)arena->xpv_pv; | |
483 | Safefree(arena); | |
484 | } | |
485 | PL_xpvnv_arenaroot = 0; | |
486 | ||
487 | for (arena = (XPV*)PL_xpvcv_arenaroot; arena; arena = arenanext) { | |
488 | arenanext = (XPV*)arena->xpv_pv; | |
489 | Safefree(arena); | |
490 | } | |
491 | PL_xpvcv_arenaroot = 0; | |
492 | ||
493 | for (arena = (XPV*)PL_xpvav_arenaroot; arena; arena = arenanext) { | |
494 | arenanext = (XPV*)arena->xpv_pv; | |
495 | Safefree(arena); | |
496 | } | |
497 | PL_xpvav_arenaroot = 0; | |
498 | ||
499 | for (arena = (XPV*)PL_xpvhv_arenaroot; arena; arena = arenanext) { | |
500 | arenanext = (XPV*)arena->xpv_pv; | |
501 | Safefree(arena); | |
502 | } | |
503 | PL_xpvhv_arenaroot = 0; | |
504 | ||
505 | for (arena = (XPV*)PL_xpvmg_arenaroot; arena; arena = arenanext) { | |
506 | arenanext = (XPV*)arena->xpv_pv; | |
507 | Safefree(arena); | |
508 | } | |
509 | PL_xpvmg_arenaroot = 0; | |
510 | ||
511 | for (arena = (XPV*)PL_xpvlv_arenaroot; arena; arena = arenanext) { | |
512 | arenanext = (XPV*)arena->xpv_pv; | |
513 | Safefree(arena); | |
514 | } | |
515 | PL_xpvlv_arenaroot = 0; | |
516 | ||
517 | for (arena = (XPV*)PL_xpvbm_arenaroot; arena; arena = arenanext) { | |
518 | arenanext = (XPV*)arena->xpv_pv; | |
519 | Safefree(arena); | |
520 | } | |
521 | PL_xpvbm_arenaroot = 0; | |
522 | ||
523 | for (arena = (XPV*)PL_he_arenaroot; arena; arena = arenanext) { | |
524 | arenanext = (XPV*)arena->xpv_pv; | |
525 | Safefree(arena); | |
526 | } | |
527 | PL_he_arenaroot = 0; | |
528 | ||
3280af22 NIS |
529 | if (PL_nice_chunk) |
530 | Safefree(PL_nice_chunk); | |
531 | PL_nice_chunk = Nullch; | |
532 | PL_nice_chunk_size = 0; | |
533 | PL_sv_arenaroot = 0; | |
534 | PL_sv_root = 0; | |
4633a7c4 LW |
535 | } |
536 | ||
645c22ef DM |
537 | /* |
538 | =for apidoc report_uninit | |
539 | ||
540 | Print appropriate "Use of uninitialized variable" warning | |
541 | ||
542 | =cut | |
543 | */ | |
544 | ||
1d7c1841 GS |
545 | void |
546 | Perl_report_uninit(pTHX) | |
547 | { | |
548 | if (PL_op) | |
9014280d | 549 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, |
53e06cf0 | 550 | " in ", OP_DESC(PL_op)); |
1d7c1841 | 551 | else |
9014280d | 552 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, "", ""); |
1d7c1841 GS |
553 | } |
554 | ||
645c22ef DM |
555 | /* grab a new IV body from the free list, allocating more if necessary */ |
556 | ||
76e3520e | 557 | STATIC XPVIV* |
cea2e8a9 | 558 | S_new_xiv(pTHX) |
463ee0b2 | 559 | { |
ea7c11a3 | 560 | IV* xiv; |
cbe51380 GS |
561 | LOCK_SV_MUTEX; |
562 | if (!PL_xiv_root) | |
563 | more_xiv(); | |
564 | xiv = PL_xiv_root; | |
565 | /* | |
566 | * See comment in more_xiv() -- RAM. | |
567 | */ | |
568 | PL_xiv_root = *(IV**)xiv; | |
569 | UNLOCK_SV_MUTEX; | |
570 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
571 | } |
572 | ||
645c22ef DM |
573 | /* return an IV body to the free list */ |
574 | ||
76e3520e | 575 | STATIC void |
cea2e8a9 | 576 | S_del_xiv(pTHX_ XPVIV *p) |
463ee0b2 | 577 | { |
23e6a22f | 578 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 579 | LOCK_SV_MUTEX; |
3280af22 NIS |
580 | *(IV**)xiv = PL_xiv_root; |
581 | PL_xiv_root = xiv; | |
cbe51380 | 582 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
583 | } |
584 | ||
645c22ef DM |
585 | /* allocate another arena's worth of IV bodies */ |
586 | ||
cbe51380 | 587 | STATIC void |
cea2e8a9 | 588 | S_more_xiv(pTHX) |
463ee0b2 | 589 | { |
ea7c11a3 SM |
590 | register IV* xiv; |
591 | register IV* xivend; | |
8c52afec IZ |
592 | XPV* ptr; |
593 | New(705, ptr, 1008/sizeof(XPV), XPV); | |
645c22ef | 594 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
3280af22 | 595 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ |
a0d0e21e | 596 | |
ea7c11a3 SM |
597 | xiv = (IV*) ptr; |
598 | xivend = &xiv[1008 / sizeof(IV) - 1]; | |
645c22ef | 599 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ |
3280af22 | 600 | PL_xiv_root = xiv; |
463ee0b2 | 601 | while (xiv < xivend) { |
ea7c11a3 | 602 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
603 | xiv++; |
604 | } | |
ea7c11a3 | 605 | *(IV**)xiv = 0; |
463ee0b2 LW |
606 | } |
607 | ||
645c22ef DM |
608 | /* grab a new NV body from the free list, allocating more if necessary */ |
609 | ||
76e3520e | 610 | STATIC XPVNV* |
cea2e8a9 | 611 | S_new_xnv(pTHX) |
463ee0b2 | 612 | { |
65202027 | 613 | NV* xnv; |
cbe51380 GS |
614 | LOCK_SV_MUTEX; |
615 | if (!PL_xnv_root) | |
616 | more_xnv(); | |
617 | xnv = PL_xnv_root; | |
65202027 | 618 | PL_xnv_root = *(NV**)xnv; |
cbe51380 GS |
619 | UNLOCK_SV_MUTEX; |
620 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
621 | } |
622 | ||
645c22ef DM |
623 | /* return an NV body to the free list */ |
624 | ||
76e3520e | 625 | STATIC void |
cea2e8a9 | 626 | S_del_xnv(pTHX_ XPVNV *p) |
463ee0b2 | 627 | { |
65202027 | 628 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 629 | LOCK_SV_MUTEX; |
65202027 | 630 | *(NV**)xnv = PL_xnv_root; |
3280af22 | 631 | PL_xnv_root = xnv; |
cbe51380 | 632 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
633 | } |
634 | ||
645c22ef DM |
635 | /* allocate another arena's worth of NV bodies */ |
636 | ||
cbe51380 | 637 | STATIC void |
cea2e8a9 | 638 | S_more_xnv(pTHX) |
463ee0b2 | 639 | { |
65202027 DS |
640 | register NV* xnv; |
641 | register NV* xnvend; | |
612f20c3 GS |
642 | XPV *ptr; |
643 | New(711, ptr, 1008/sizeof(XPV), XPV); | |
644 | ptr->xpv_pv = (char*)PL_xnv_arenaroot; | |
645 | PL_xnv_arenaroot = ptr; | |
646 | ||
647 | xnv = (NV*) ptr; | |
65202027 DS |
648 | xnvend = &xnv[1008 / sizeof(NV) - 1]; |
649 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ | |
3280af22 | 650 | PL_xnv_root = xnv; |
463ee0b2 | 651 | while (xnv < xnvend) { |
65202027 | 652 | *(NV**)xnv = (NV*)(xnv + 1); |
463ee0b2 LW |
653 | xnv++; |
654 | } | |
65202027 | 655 | *(NV**)xnv = 0; |
463ee0b2 LW |
656 | } |
657 | ||
645c22ef DM |
658 | /* grab a new struct xrv from the free list, allocating more if necessary */ |
659 | ||
76e3520e | 660 | STATIC XRV* |
cea2e8a9 | 661 | S_new_xrv(pTHX) |
ed6116ce LW |
662 | { |
663 | XRV* xrv; | |
cbe51380 GS |
664 | LOCK_SV_MUTEX; |
665 | if (!PL_xrv_root) | |
666 | more_xrv(); | |
667 | xrv = PL_xrv_root; | |
668 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
669 | UNLOCK_SV_MUTEX; | |
670 | return xrv; | |
ed6116ce LW |
671 | } |
672 | ||
645c22ef DM |
673 | /* return a struct xrv to the free list */ |
674 | ||
76e3520e | 675 | STATIC void |
cea2e8a9 | 676 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 677 | { |
cbe51380 | 678 | LOCK_SV_MUTEX; |
3280af22 NIS |
679 | p->xrv_rv = (SV*)PL_xrv_root; |
680 | PL_xrv_root = p; | |
cbe51380 | 681 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
682 | } |
683 | ||
645c22ef DM |
684 | /* allocate another arena's worth of struct xrv */ |
685 | ||
cbe51380 | 686 | STATIC void |
cea2e8a9 | 687 | S_more_xrv(pTHX) |
ed6116ce | 688 | { |
ed6116ce LW |
689 | register XRV* xrv; |
690 | register XRV* xrvend; | |
612f20c3 GS |
691 | XPV *ptr; |
692 | New(712, ptr, 1008/sizeof(XPV), XPV); | |
693 | ptr->xpv_pv = (char*)PL_xrv_arenaroot; | |
694 | PL_xrv_arenaroot = ptr; | |
695 | ||
696 | xrv = (XRV*) ptr; | |
ed6116ce | 697 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
612f20c3 GS |
698 | xrv += (sizeof(XPV) - 1) / sizeof(XRV) + 1; |
699 | PL_xrv_root = xrv; | |
ed6116ce LW |
700 | while (xrv < xrvend) { |
701 | xrv->xrv_rv = (SV*)(xrv + 1); | |
702 | xrv++; | |
703 | } | |
704 | xrv->xrv_rv = 0; | |
ed6116ce LW |
705 | } |
706 | ||
645c22ef DM |
707 | /* grab a new struct xpv from the free list, allocating more if necessary */ |
708 | ||
76e3520e | 709 | STATIC XPV* |
cea2e8a9 | 710 | S_new_xpv(pTHX) |
463ee0b2 LW |
711 | { |
712 | XPV* xpv; | |
cbe51380 GS |
713 | LOCK_SV_MUTEX; |
714 | if (!PL_xpv_root) | |
715 | more_xpv(); | |
716 | xpv = PL_xpv_root; | |
717 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
718 | UNLOCK_SV_MUTEX; | |
719 | return xpv; | |
463ee0b2 LW |
720 | } |
721 | ||
645c22ef DM |
722 | /* return a struct xpv to the free list */ |
723 | ||
76e3520e | 724 | STATIC void |
cea2e8a9 | 725 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 726 | { |
cbe51380 | 727 | LOCK_SV_MUTEX; |
3280af22 NIS |
728 | p->xpv_pv = (char*)PL_xpv_root; |
729 | PL_xpv_root = p; | |
cbe51380 | 730 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
731 | } |
732 | ||
645c22ef DM |
733 | /* allocate another arena's worth of struct xpv */ |
734 | ||
cbe51380 | 735 | STATIC void |
cea2e8a9 | 736 | S_more_xpv(pTHX) |
463ee0b2 | 737 | { |
463ee0b2 LW |
738 | register XPV* xpv; |
739 | register XPV* xpvend; | |
612f20c3 GS |
740 | New(713, xpv, 1008/sizeof(XPV), XPV); |
741 | xpv->xpv_pv = (char*)PL_xpv_arenaroot; | |
742 | PL_xpv_arenaroot = xpv; | |
743 | ||
463ee0b2 | 744 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
612f20c3 | 745 | PL_xpv_root = ++xpv; |
463ee0b2 LW |
746 | while (xpv < xpvend) { |
747 | xpv->xpv_pv = (char*)(xpv + 1); | |
748 | xpv++; | |
749 | } | |
750 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
751 | } |
752 | ||
645c22ef DM |
753 | /* grab a new struct xpviv from the free list, allocating more if necessary */ |
754 | ||
932e9ff9 VB |
755 | STATIC XPVIV* |
756 | S_new_xpviv(pTHX) | |
757 | { | |
758 | XPVIV* xpviv; | |
759 | LOCK_SV_MUTEX; | |
760 | if (!PL_xpviv_root) | |
761 | more_xpviv(); | |
762 | xpviv = PL_xpviv_root; | |
763 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
764 | UNLOCK_SV_MUTEX; | |
765 | return xpviv; | |
766 | } | |
767 | ||
645c22ef DM |
768 | /* return a struct xpviv to the free list */ |
769 | ||
932e9ff9 VB |
770 | STATIC void |
771 | S_del_xpviv(pTHX_ XPVIV *p) | |
772 | { | |
773 | LOCK_SV_MUTEX; | |
774 | p->xpv_pv = (char*)PL_xpviv_root; | |
775 | PL_xpviv_root = p; | |
776 | UNLOCK_SV_MUTEX; | |
777 | } | |
778 | ||
645c22ef DM |
779 | /* allocate another arena's worth of struct xpviv */ |
780 | ||
932e9ff9 VB |
781 | STATIC void |
782 | S_more_xpviv(pTHX) | |
783 | { | |
784 | register XPVIV* xpviv; | |
785 | register XPVIV* xpvivend; | |
612f20c3 GS |
786 | New(714, xpviv, 1008/sizeof(XPVIV), XPVIV); |
787 | xpviv->xpv_pv = (char*)PL_xpviv_arenaroot; | |
788 | PL_xpviv_arenaroot = xpviv; | |
789 | ||
932e9ff9 | 790 | xpvivend = &xpviv[1008 / sizeof(XPVIV) - 1]; |
612f20c3 | 791 | PL_xpviv_root = ++xpviv; |
932e9ff9 VB |
792 | while (xpviv < xpvivend) { |
793 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
794 | xpviv++; | |
795 | } | |
796 | xpviv->xpv_pv = 0; | |
797 | } | |
798 | ||
645c22ef DM |
799 | /* grab a new struct xpvnv from the free list, allocating more if necessary */ |
800 | ||
932e9ff9 VB |
801 | STATIC XPVNV* |
802 | S_new_xpvnv(pTHX) | |
803 | { | |
804 | XPVNV* xpvnv; | |
805 | LOCK_SV_MUTEX; | |
806 | if (!PL_xpvnv_root) | |
807 | more_xpvnv(); | |
808 | xpvnv = PL_xpvnv_root; | |
809 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
810 | UNLOCK_SV_MUTEX; | |
811 | return xpvnv; | |
812 | } | |
813 | ||
645c22ef DM |
814 | /* return a struct xpvnv to the free list */ |
815 | ||
932e9ff9 VB |
816 | STATIC void |
817 | S_del_xpvnv(pTHX_ XPVNV *p) | |
818 | { | |
819 | LOCK_SV_MUTEX; | |
820 | p->xpv_pv = (char*)PL_xpvnv_root; | |
821 | PL_xpvnv_root = p; | |
822 | UNLOCK_SV_MUTEX; | |
823 | } | |
824 | ||
645c22ef DM |
825 | /* allocate another arena's worth of struct xpvnv */ |
826 | ||
932e9ff9 VB |
827 | STATIC void |
828 | S_more_xpvnv(pTHX) | |
829 | { | |
830 | register XPVNV* xpvnv; | |
831 | register XPVNV* xpvnvend; | |
612f20c3 GS |
832 | New(715, xpvnv, 1008/sizeof(XPVNV), XPVNV); |
833 | xpvnv->xpv_pv = (char*)PL_xpvnv_arenaroot; | |
834 | PL_xpvnv_arenaroot = xpvnv; | |
835 | ||
932e9ff9 | 836 | xpvnvend = &xpvnv[1008 / sizeof(XPVNV) - 1]; |
612f20c3 | 837 | PL_xpvnv_root = ++xpvnv; |
932e9ff9 VB |
838 | while (xpvnv < xpvnvend) { |
839 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
840 | xpvnv++; | |
841 | } | |
842 | xpvnv->xpv_pv = 0; | |
843 | } | |
844 | ||
645c22ef DM |
845 | /* grab a new struct xpvcv from the free list, allocating more if necessary */ |
846 | ||
932e9ff9 VB |
847 | STATIC XPVCV* |
848 | S_new_xpvcv(pTHX) | |
849 | { | |
850 | XPVCV* xpvcv; | |
851 | LOCK_SV_MUTEX; | |
852 | if (!PL_xpvcv_root) | |
853 | more_xpvcv(); | |
854 | xpvcv = PL_xpvcv_root; | |
855 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
856 | UNLOCK_SV_MUTEX; | |
857 | return xpvcv; | |
858 | } | |
859 | ||
645c22ef DM |
860 | /* return a struct xpvcv to the free list */ |
861 | ||
932e9ff9 VB |
862 | STATIC void |
863 | S_del_xpvcv(pTHX_ XPVCV *p) | |
864 | { | |
865 | LOCK_SV_MUTEX; | |
866 | p->xpv_pv = (char*)PL_xpvcv_root; | |
867 | PL_xpvcv_root = p; | |
868 | UNLOCK_SV_MUTEX; | |
869 | } | |
870 | ||
645c22ef DM |
871 | /* allocate another arena's worth of struct xpvcv */ |
872 | ||
932e9ff9 VB |
873 | STATIC void |
874 | S_more_xpvcv(pTHX) | |
875 | { | |
876 | register XPVCV* xpvcv; | |
877 | register XPVCV* xpvcvend; | |
612f20c3 GS |
878 | New(716, xpvcv, 1008/sizeof(XPVCV), XPVCV); |
879 | xpvcv->xpv_pv = (char*)PL_xpvcv_arenaroot; | |
880 | PL_xpvcv_arenaroot = xpvcv; | |
881 | ||
932e9ff9 | 882 | xpvcvend = &xpvcv[1008 / sizeof(XPVCV) - 1]; |
612f20c3 | 883 | PL_xpvcv_root = ++xpvcv; |
932e9ff9 VB |
884 | while (xpvcv < xpvcvend) { |
885 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
886 | xpvcv++; | |
887 | } | |
888 | xpvcv->xpv_pv = 0; | |
889 | } | |
890 | ||
645c22ef DM |
891 | /* grab a new struct xpvav from the free list, allocating more if necessary */ |
892 | ||
932e9ff9 VB |
893 | STATIC XPVAV* |
894 | S_new_xpvav(pTHX) | |
895 | { | |
896 | XPVAV* xpvav; | |
897 | LOCK_SV_MUTEX; | |
898 | if (!PL_xpvav_root) | |
899 | more_xpvav(); | |
900 | xpvav = PL_xpvav_root; | |
901 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
902 | UNLOCK_SV_MUTEX; | |
903 | return xpvav; | |
904 | } | |
905 | ||
645c22ef DM |
906 | /* return a struct xpvav to the free list */ |
907 | ||
932e9ff9 VB |
908 | STATIC void |
909 | S_del_xpvav(pTHX_ XPVAV *p) | |
910 | { | |
911 | LOCK_SV_MUTEX; | |
912 | p->xav_array = (char*)PL_xpvav_root; | |
913 | PL_xpvav_root = p; | |
914 | UNLOCK_SV_MUTEX; | |
915 | } | |
916 | ||
645c22ef DM |
917 | /* allocate another arena's worth of struct xpvav */ |
918 | ||
932e9ff9 VB |
919 | STATIC void |
920 | S_more_xpvav(pTHX) | |
921 | { | |
922 | register XPVAV* xpvav; | |
923 | register XPVAV* xpvavend; | |
612f20c3 GS |
924 | New(717, xpvav, 1008/sizeof(XPVAV), XPVAV); |
925 | xpvav->xav_array = (char*)PL_xpvav_arenaroot; | |
926 | PL_xpvav_arenaroot = xpvav; | |
927 | ||
932e9ff9 | 928 | xpvavend = &xpvav[1008 / sizeof(XPVAV) - 1]; |
612f20c3 | 929 | PL_xpvav_root = ++xpvav; |
932e9ff9 VB |
930 | while (xpvav < xpvavend) { |
931 | xpvav->xav_array = (char*)(xpvav + 1); | |
932 | xpvav++; | |
933 | } | |
934 | xpvav->xav_array = 0; | |
935 | } | |
936 | ||
645c22ef DM |
937 | /* grab a new struct xpvhv from the free list, allocating more if necessary */ |
938 | ||
932e9ff9 VB |
939 | STATIC XPVHV* |
940 | S_new_xpvhv(pTHX) | |
941 | { | |
942 | XPVHV* xpvhv; | |
943 | LOCK_SV_MUTEX; | |
944 | if (!PL_xpvhv_root) | |
945 | more_xpvhv(); | |
946 | xpvhv = PL_xpvhv_root; | |
947 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
948 | UNLOCK_SV_MUTEX; | |
949 | return xpvhv; | |
950 | } | |
951 | ||
645c22ef DM |
952 | /* return a struct xpvhv to the free list */ |
953 | ||
932e9ff9 VB |
954 | STATIC void |
955 | S_del_xpvhv(pTHX_ XPVHV *p) | |
956 | { | |
957 | LOCK_SV_MUTEX; | |
958 | p->xhv_array = (char*)PL_xpvhv_root; | |
959 | PL_xpvhv_root = p; | |
960 | UNLOCK_SV_MUTEX; | |
961 | } | |
962 | ||
645c22ef DM |
963 | /* allocate another arena's worth of struct xpvhv */ |
964 | ||
932e9ff9 VB |
965 | STATIC void |
966 | S_more_xpvhv(pTHX) | |
967 | { | |
968 | register XPVHV* xpvhv; | |
969 | register XPVHV* xpvhvend; | |
612f20c3 GS |
970 | New(718, xpvhv, 1008/sizeof(XPVHV), XPVHV); |
971 | xpvhv->xhv_array = (char*)PL_xpvhv_arenaroot; | |
972 | PL_xpvhv_arenaroot = xpvhv; | |
973 | ||
932e9ff9 | 974 | xpvhvend = &xpvhv[1008 / sizeof(XPVHV) - 1]; |
612f20c3 | 975 | PL_xpvhv_root = ++xpvhv; |
932e9ff9 VB |
976 | while (xpvhv < xpvhvend) { |
977 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
978 | xpvhv++; | |
979 | } | |
980 | xpvhv->xhv_array = 0; | |
981 | } | |
982 | ||
645c22ef DM |
983 | /* grab a new struct xpvmg from the free list, allocating more if necessary */ |
984 | ||
932e9ff9 VB |
985 | STATIC XPVMG* |
986 | S_new_xpvmg(pTHX) | |
987 | { | |
988 | XPVMG* xpvmg; | |
989 | LOCK_SV_MUTEX; | |
990 | if (!PL_xpvmg_root) | |
991 | more_xpvmg(); | |
992 | xpvmg = PL_xpvmg_root; | |
993 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
994 | UNLOCK_SV_MUTEX; | |
995 | return xpvmg; | |
996 | } | |
997 | ||
645c22ef DM |
998 | /* return a struct xpvmg to the free list */ |
999 | ||
932e9ff9 VB |
1000 | STATIC void |
1001 | S_del_xpvmg(pTHX_ XPVMG *p) | |
1002 | { | |
1003 | LOCK_SV_MUTEX; | |
1004 | p->xpv_pv = (char*)PL_xpvmg_root; | |
1005 | PL_xpvmg_root = p; | |
1006 | UNLOCK_SV_MUTEX; | |
1007 | } | |
1008 | ||
645c22ef DM |
1009 | /* allocate another arena's worth of struct xpvmg */ |
1010 | ||
932e9ff9 VB |
1011 | STATIC void |
1012 | S_more_xpvmg(pTHX) | |
1013 | { | |
1014 | register XPVMG* xpvmg; | |
1015 | register XPVMG* xpvmgend; | |
612f20c3 GS |
1016 | New(719, xpvmg, 1008/sizeof(XPVMG), XPVMG); |
1017 | xpvmg->xpv_pv = (char*)PL_xpvmg_arenaroot; | |
1018 | PL_xpvmg_arenaroot = xpvmg; | |
1019 | ||
932e9ff9 | 1020 | xpvmgend = &xpvmg[1008 / sizeof(XPVMG) - 1]; |
612f20c3 | 1021 | PL_xpvmg_root = ++xpvmg; |
932e9ff9 VB |
1022 | while (xpvmg < xpvmgend) { |
1023 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
1024 | xpvmg++; | |
1025 | } | |
1026 | xpvmg->xpv_pv = 0; | |
1027 | } | |
1028 | ||
645c22ef DM |
1029 | /* grab a new struct xpvlv from the free list, allocating more if necessary */ |
1030 | ||
932e9ff9 VB |
1031 | STATIC XPVLV* |
1032 | S_new_xpvlv(pTHX) | |
1033 | { | |
1034 | XPVLV* xpvlv; | |
1035 | LOCK_SV_MUTEX; | |
1036 | if (!PL_xpvlv_root) | |
1037 | more_xpvlv(); | |
1038 | xpvlv = PL_xpvlv_root; | |
1039 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
1040 | UNLOCK_SV_MUTEX; | |
1041 | return xpvlv; | |
1042 | } | |
1043 | ||
645c22ef DM |
1044 | /* return a struct xpvlv to the free list */ |
1045 | ||
932e9ff9 VB |
1046 | STATIC void |
1047 | S_del_xpvlv(pTHX_ XPVLV *p) | |
1048 | { | |
1049 | LOCK_SV_MUTEX; | |
1050 | p->xpv_pv = (char*)PL_xpvlv_root; | |
1051 | PL_xpvlv_root = p; | |
1052 | UNLOCK_SV_MUTEX; | |
1053 | } | |
1054 | ||
645c22ef DM |
1055 | /* allocate another arena's worth of struct xpvlv */ |
1056 | ||
932e9ff9 VB |
1057 | STATIC void |
1058 | S_more_xpvlv(pTHX) | |
1059 | { | |
1060 | register XPVLV* xpvlv; | |
1061 | register XPVLV* xpvlvend; | |
612f20c3 GS |
1062 | New(720, xpvlv, 1008/sizeof(XPVLV), XPVLV); |
1063 | xpvlv->xpv_pv = (char*)PL_xpvlv_arenaroot; | |
1064 | PL_xpvlv_arenaroot = xpvlv; | |
1065 | ||
932e9ff9 | 1066 | xpvlvend = &xpvlv[1008 / sizeof(XPVLV) - 1]; |
612f20c3 | 1067 | PL_xpvlv_root = ++xpvlv; |
932e9ff9 VB |
1068 | while (xpvlv < xpvlvend) { |
1069 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
1070 | xpvlv++; | |
1071 | } | |
1072 | xpvlv->xpv_pv = 0; | |
1073 | } | |
1074 | ||
645c22ef DM |
1075 | /* grab a new struct xpvbm from the free list, allocating more if necessary */ |
1076 | ||
932e9ff9 VB |
1077 | STATIC XPVBM* |
1078 | S_new_xpvbm(pTHX) | |
1079 | { | |
1080 | XPVBM* xpvbm; | |
1081 | LOCK_SV_MUTEX; | |
1082 | if (!PL_xpvbm_root) | |
1083 | more_xpvbm(); | |
1084 | xpvbm = PL_xpvbm_root; | |
1085 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
1086 | UNLOCK_SV_MUTEX; | |
1087 | return xpvbm; | |
1088 | } | |
1089 | ||
645c22ef DM |
1090 | /* return a struct xpvbm to the free list */ |
1091 | ||
932e9ff9 VB |
1092 | STATIC void |
1093 | S_del_xpvbm(pTHX_ XPVBM *p) | |
1094 | { | |
1095 | LOCK_SV_MUTEX; | |
1096 | p->xpv_pv = (char*)PL_xpvbm_root; | |
1097 | PL_xpvbm_root = p; | |
1098 | UNLOCK_SV_MUTEX; | |
1099 | } | |
1100 | ||
645c22ef DM |
1101 | /* allocate another arena's worth of struct xpvbm */ |
1102 | ||
932e9ff9 VB |
1103 | STATIC void |
1104 | S_more_xpvbm(pTHX) | |
1105 | { | |
1106 | register XPVBM* xpvbm; | |
1107 | register XPVBM* xpvbmend; | |
612f20c3 GS |
1108 | New(721, xpvbm, 1008/sizeof(XPVBM), XPVBM); |
1109 | xpvbm->xpv_pv = (char*)PL_xpvbm_arenaroot; | |
1110 | PL_xpvbm_arenaroot = xpvbm; | |
1111 | ||
932e9ff9 | 1112 | xpvbmend = &xpvbm[1008 / sizeof(XPVBM) - 1]; |
612f20c3 | 1113 | PL_xpvbm_root = ++xpvbm; |
932e9ff9 VB |
1114 | while (xpvbm < xpvbmend) { |
1115 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
1116 | xpvbm++; | |
1117 | } | |
1118 | xpvbm->xpv_pv = 0; | |
1119 | } | |
1120 | ||
d33b2eba GS |
1121 | #ifdef LEAKTEST |
1122 | # define my_safemalloc(s) (void*)safexmalloc(717,s) | |
1123 | # define my_safefree(p) safexfree((char*)p) | |
1124 | #else | |
1125 | # define my_safemalloc(s) (void*)safemalloc(s) | |
1126 | # define my_safefree(p) safefree((char*)p) | |
1127 | #endif | |
463ee0b2 | 1128 | |
d33b2eba | 1129 | #ifdef PURIFY |
463ee0b2 | 1130 | |
d33b2eba GS |
1131 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
1132 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 1133 | |
d33b2eba GS |
1134 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1135 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1136 | |
d33b2eba GS |
1137 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
1138 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 1139 | |
d33b2eba GS |
1140 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1141 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1142 | |
d33b2eba GS |
1143 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1144 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1145 | |
d33b2eba GS |
1146 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1147 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1148 | |
d33b2eba GS |
1149 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1150 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1151 | |
d33b2eba GS |
1152 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1153 | #define del_XPVAV(p) my_safefree(p) | |
1154 | ||
1155 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1156 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1157 | |
d33b2eba GS |
1158 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1159 | #define del_XPVMG(p) my_safefree(p) | |
1160 | ||
1161 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) | |
1162 | #define del_XPVLV(p) my_safefree(p) | |
1163 | ||
1164 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1165 | #define del_XPVBM(p) my_safefree(p) | |
1166 | ||
1167 | #else /* !PURIFY */ | |
1168 | ||
1169 | #define new_XIV() (void*)new_xiv() | |
1170 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
1171 | ||
1172 | #define new_XNV() (void*)new_xnv() | |
1173 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 1174 | |
d33b2eba GS |
1175 | #define new_XRV() (void*)new_xrv() |
1176 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 1177 | |
d33b2eba GS |
1178 | #define new_XPV() (void*)new_xpv() |
1179 | #define del_XPV(p) del_xpv((XPV *)p) | |
1180 | ||
1181 | #define new_XPVIV() (void*)new_xpviv() | |
1182 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
1183 | ||
1184 | #define new_XPVNV() (void*)new_xpvnv() | |
1185 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
1186 | ||
1187 | #define new_XPVCV() (void*)new_xpvcv() | |
1188 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
1189 | ||
1190 | #define new_XPVAV() (void*)new_xpvav() | |
1191 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
1192 | ||
1193 | #define new_XPVHV() (void*)new_xpvhv() | |
1194 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
1c846c1f | 1195 | |
d33b2eba GS |
1196 | #define new_XPVMG() (void*)new_xpvmg() |
1197 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
1198 | ||
1199 | #define new_XPVLV() (void*)new_xpvlv() | |
1200 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
1201 | ||
1202 | #define new_XPVBM() (void*)new_xpvbm() | |
1203 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
1204 | ||
1205 | #endif /* PURIFY */ | |
9b94d1dd | 1206 | |
d33b2eba GS |
1207 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1208 | #define del_XPVGV(p) my_safefree(p) | |
1c846c1f | 1209 | |
d33b2eba GS |
1210 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1211 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1212 | |
d33b2eba GS |
1213 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1214 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1215 | |
954c1994 GS |
1216 | /* |
1217 | =for apidoc sv_upgrade | |
1218 | ||
ff276b08 | 1219 | Upgrade an SV to a more complex form. Generally adds a new body type to the |
645c22ef | 1220 | SV, then copies across as much information as possible from the old body. |
ff276b08 | 1221 | You generally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. |
954c1994 GS |
1222 | |
1223 | =cut | |
1224 | */ | |
1225 | ||
79072805 | 1226 | bool |
864dbfa3 | 1227 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 | 1228 | { |
c04a4dfe JH |
1229 | char* pv = NULL; |
1230 | U32 cur = 0; | |
1231 | U32 len = 0; | |
1232 | IV iv = 0; | |
1233 | NV nv = 0.0; | |
1234 | MAGIC* magic = NULL; | |
1235 | HV* stash = Nullhv; | |
79072805 | 1236 | |
f130fd45 NIS |
1237 | if (mt != SVt_PV && SvREADONLY(sv) && SvFAKE(sv)) { |
1238 | sv_force_normal(sv); | |
1239 | } | |
1240 | ||
79072805 LW |
1241 | if (SvTYPE(sv) == mt) |
1242 | return TRUE; | |
1243 | ||
a5f75d66 AD |
1244 | if (mt < SVt_PVIV) |
1245 | (void)SvOOK_off(sv); | |
1246 | ||
79072805 LW |
1247 | switch (SvTYPE(sv)) { |
1248 | case SVt_NULL: | |
1249 | pv = 0; | |
1250 | cur = 0; | |
1251 | len = 0; | |
1252 | iv = 0; | |
1253 | nv = 0.0; | |
1254 | magic = 0; | |
1255 | stash = 0; | |
1256 | break; | |
79072805 LW |
1257 | case SVt_IV: |
1258 | pv = 0; | |
1259 | cur = 0; | |
1260 | len = 0; | |
463ee0b2 | 1261 | iv = SvIVX(sv); |
65202027 | 1262 | nv = (NV)SvIVX(sv); |
79072805 LW |
1263 | del_XIV(SvANY(sv)); |
1264 | magic = 0; | |
1265 | stash = 0; | |
ed6116ce | 1266 | if (mt == SVt_NV) |
463ee0b2 | 1267 | mt = SVt_PVNV; |
ed6116ce LW |
1268 | else if (mt < SVt_PVIV) |
1269 | mt = SVt_PVIV; | |
79072805 LW |
1270 | break; |
1271 | case SVt_NV: | |
1272 | pv = 0; | |
1273 | cur = 0; | |
1274 | len = 0; | |
463ee0b2 | 1275 | nv = SvNVX(sv); |
1bd302c3 | 1276 | iv = I_V(nv); |
79072805 LW |
1277 | magic = 0; |
1278 | stash = 0; | |
1279 | del_XNV(SvANY(sv)); | |
1280 | SvANY(sv) = 0; | |
ed6116ce | 1281 | if (mt < SVt_PVNV) |
79072805 LW |
1282 | mt = SVt_PVNV; |
1283 | break; | |
ed6116ce LW |
1284 | case SVt_RV: |
1285 | pv = (char*)SvRV(sv); | |
1286 | cur = 0; | |
1287 | len = 0; | |
56431972 RB |
1288 | iv = PTR2IV(pv); |
1289 | nv = PTR2NV(pv); | |
ed6116ce LW |
1290 | del_XRV(SvANY(sv)); |
1291 | magic = 0; | |
1292 | stash = 0; | |
1293 | break; | |
79072805 | 1294 | case SVt_PV: |
463ee0b2 | 1295 | pv = SvPVX(sv); |
79072805 LW |
1296 | cur = SvCUR(sv); |
1297 | len = SvLEN(sv); | |
1298 | iv = 0; | |
1299 | nv = 0.0; | |
1300 | magic = 0; | |
1301 | stash = 0; | |
1302 | del_XPV(SvANY(sv)); | |
748a9306 LW |
1303 | if (mt <= SVt_IV) |
1304 | mt = SVt_PVIV; | |
1305 | else if (mt == SVt_NV) | |
1306 | mt = SVt_PVNV; | |
79072805 LW |
1307 | break; |
1308 | case SVt_PVIV: | |
463ee0b2 | 1309 | pv = SvPVX(sv); |
79072805 LW |
1310 | cur = SvCUR(sv); |
1311 | len = SvLEN(sv); | |
463ee0b2 | 1312 | iv = SvIVX(sv); |
79072805 LW |
1313 | nv = 0.0; |
1314 | magic = 0; | |
1315 | stash = 0; | |
1316 | del_XPVIV(SvANY(sv)); | |
1317 | break; | |
1318 | case SVt_PVNV: | |
463ee0b2 | 1319 | pv = SvPVX(sv); |
79072805 LW |
1320 | cur = SvCUR(sv); |
1321 | len = SvLEN(sv); | |
463ee0b2 LW |
1322 | iv = SvIVX(sv); |
1323 | nv = SvNVX(sv); | |
79072805 LW |
1324 | magic = 0; |
1325 | stash = 0; | |
1326 | del_XPVNV(SvANY(sv)); | |
1327 | break; | |
1328 | case SVt_PVMG: | |
463ee0b2 | 1329 | pv = SvPVX(sv); |
79072805 LW |
1330 | cur = SvCUR(sv); |
1331 | len = SvLEN(sv); | |
463ee0b2 LW |
1332 | iv = SvIVX(sv); |
1333 | nv = SvNVX(sv); | |
79072805 LW |
1334 | magic = SvMAGIC(sv); |
1335 | stash = SvSTASH(sv); | |
1336 | del_XPVMG(SvANY(sv)); | |
1337 | break; | |
1338 | default: | |
cea2e8a9 | 1339 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1340 | } |
1341 | ||
1342 | switch (mt) { | |
1343 | case SVt_NULL: | |
cea2e8a9 | 1344 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1345 | case SVt_IV: |
1346 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 1347 | SvIVX(sv) = iv; |
79072805 LW |
1348 | break; |
1349 | case SVt_NV: | |
1350 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 1351 | SvNVX(sv) = nv; |
79072805 | 1352 | break; |
ed6116ce LW |
1353 | case SVt_RV: |
1354 | SvANY(sv) = new_XRV(); | |
1355 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 1356 | break; |
79072805 LW |
1357 | case SVt_PV: |
1358 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 1359 | SvPVX(sv) = pv; |
79072805 LW |
1360 | SvCUR(sv) = cur; |
1361 | SvLEN(sv) = len; | |
1362 | break; | |
1363 | case SVt_PVIV: | |
1364 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 1365 | SvPVX(sv) = pv; |
79072805 LW |
1366 | SvCUR(sv) = cur; |
1367 | SvLEN(sv) = len; | |
463ee0b2 | 1368 | SvIVX(sv) = iv; |
79072805 | 1369 | if (SvNIOK(sv)) |
a0d0e21e | 1370 | (void)SvIOK_on(sv); |
79072805 LW |
1371 | SvNOK_off(sv); |
1372 | break; | |
1373 | case SVt_PVNV: | |
1374 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 1375 | SvPVX(sv) = pv; |
79072805 LW |
1376 | SvCUR(sv) = cur; |
1377 | SvLEN(sv) = len; | |
463ee0b2 LW |
1378 | SvIVX(sv) = iv; |
1379 | SvNVX(sv) = nv; | |
79072805 LW |
1380 | break; |
1381 | case SVt_PVMG: | |
1382 | SvANY(sv) = new_XPVMG(); | |
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 | SvMAGIC(sv) = magic; |
1389 | SvSTASH(sv) = stash; | |
1390 | break; | |
1391 | case SVt_PVLV: | |
1392 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 1393 | SvPVX(sv) = pv; |
79072805 LW |
1394 | SvCUR(sv) = cur; |
1395 | SvLEN(sv) = len; | |
463ee0b2 LW |
1396 | SvIVX(sv) = iv; |
1397 | SvNVX(sv) = nv; | |
79072805 LW |
1398 | SvMAGIC(sv) = magic; |
1399 | SvSTASH(sv) = stash; | |
1400 | LvTARGOFF(sv) = 0; | |
1401 | LvTARGLEN(sv) = 0; | |
1402 | LvTARG(sv) = 0; | |
1403 | LvTYPE(sv) = 0; | |
1404 | break; | |
1405 | case SVt_PVAV: | |
1406 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
1407 | if (pv) |
1408 | Safefree(pv); | |
2304df62 | 1409 | SvPVX(sv) = 0; |
d1bf51dd | 1410 | AvMAX(sv) = -1; |
93965878 | 1411 | AvFILLp(sv) = -1; |
463ee0b2 LW |
1412 | SvIVX(sv) = 0; |
1413 | SvNVX(sv) = 0.0; | |
1414 | SvMAGIC(sv) = magic; | |
1415 | SvSTASH(sv) = stash; | |
1416 | AvALLOC(sv) = 0; | |
79072805 LW |
1417 | AvARYLEN(sv) = 0; |
1418 | AvFLAGS(sv) = 0; | |
1419 | break; | |
1420 | case SVt_PVHV: | |
1421 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1422 | if (pv) |
1423 | Safefree(pv); | |
1424 | SvPVX(sv) = 0; | |
1425 | HvFILL(sv) = 0; | |
1426 | HvMAX(sv) = 0; | |
8aacddc1 NIS |
1427 | HvTOTALKEYS(sv) = 0; |
1428 | HvPLACEHOLDERS(sv) = 0; | |
79072805 LW |
1429 | SvMAGIC(sv) = magic; |
1430 | SvSTASH(sv) = stash; | |
79072805 LW |
1431 | HvRITER(sv) = 0; |
1432 | HvEITER(sv) = 0; | |
1433 | HvPMROOT(sv) = 0; | |
1434 | HvNAME(sv) = 0; | |
79072805 LW |
1435 | break; |
1436 | case SVt_PVCV: | |
1437 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1438 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 1439 | SvPVX(sv) = pv; |
79072805 LW |
1440 | SvCUR(sv) = cur; |
1441 | SvLEN(sv) = len; | |
463ee0b2 LW |
1442 | SvIVX(sv) = iv; |
1443 | SvNVX(sv) = nv; | |
79072805 LW |
1444 | SvMAGIC(sv) = magic; |
1445 | SvSTASH(sv) = stash; | |
79072805 LW |
1446 | break; |
1447 | case SVt_PVGV: | |
1448 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 1449 | SvPVX(sv) = pv; |
79072805 LW |
1450 | SvCUR(sv) = cur; |
1451 | SvLEN(sv) = len; | |
463ee0b2 LW |
1452 | SvIVX(sv) = iv; |
1453 | SvNVX(sv) = nv; | |
79072805 LW |
1454 | SvMAGIC(sv) = magic; |
1455 | SvSTASH(sv) = stash; | |
93a17b20 | 1456 | GvGP(sv) = 0; |
79072805 LW |
1457 | GvNAME(sv) = 0; |
1458 | GvNAMELEN(sv) = 0; | |
1459 | GvSTASH(sv) = 0; | |
a5f75d66 | 1460 | GvFLAGS(sv) = 0; |
79072805 LW |
1461 | break; |
1462 | case SVt_PVBM: | |
1463 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 1464 | SvPVX(sv) = pv; |
79072805 LW |
1465 | SvCUR(sv) = cur; |
1466 | SvLEN(sv) = len; | |
463ee0b2 LW |
1467 | SvIVX(sv) = iv; |
1468 | SvNVX(sv) = nv; | |
79072805 LW |
1469 | SvMAGIC(sv) = magic; |
1470 | SvSTASH(sv) = stash; | |
1471 | BmRARE(sv) = 0; | |
1472 | BmUSEFUL(sv) = 0; | |
1473 | BmPREVIOUS(sv) = 0; | |
1474 | break; | |
1475 | case SVt_PVFM: | |
1476 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1477 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 1478 | SvPVX(sv) = pv; |
79072805 LW |
1479 | SvCUR(sv) = cur; |
1480 | SvLEN(sv) = len; | |
463ee0b2 LW |
1481 | SvIVX(sv) = iv; |
1482 | SvNVX(sv) = nv; | |
79072805 LW |
1483 | SvMAGIC(sv) = magic; |
1484 | SvSTASH(sv) = stash; | |
79072805 | 1485 | break; |
8990e307 LW |
1486 | case SVt_PVIO: |
1487 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1488 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
1489 | SvPVX(sv) = pv; |
1490 | SvCUR(sv) = cur; | |
1491 | SvLEN(sv) = len; | |
1492 | SvIVX(sv) = iv; | |
1493 | SvNVX(sv) = nv; | |
1494 | SvMAGIC(sv) = magic; | |
1495 | SvSTASH(sv) = stash; | |
85e6fe83 | 1496 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1497 | break; |
1498 | } | |
1499 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
1500 | SvFLAGS(sv) |= mt; | |
79072805 LW |
1501 | return TRUE; |
1502 | } | |
1503 | ||
645c22ef DM |
1504 | /* |
1505 | =for apidoc sv_backoff | |
1506 | ||
1507 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1508 | wrapper instead. | |
1509 | ||
1510 | =cut | |
1511 | */ | |
1512 | ||
79072805 | 1513 | int |
864dbfa3 | 1514 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1515 | { |
1516 | assert(SvOOK(sv)); | |
463ee0b2 LW |
1517 | if (SvIVX(sv)) { |
1518 | char *s = SvPVX(sv); | |
1519 | SvLEN(sv) += SvIVX(sv); | |
1520 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 1521 | SvIV_set(sv, 0); |
463ee0b2 | 1522 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1523 | } |
1524 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1525 | return 0; |
79072805 LW |
1526 | } |
1527 | ||
954c1994 GS |
1528 | /* |
1529 | =for apidoc sv_grow | |
1530 | ||
645c22ef DM |
1531 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1532 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1533 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1534 | |
1535 | =cut | |
1536 | */ | |
1537 | ||
79072805 | 1538 | char * |
864dbfa3 | 1539 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1540 | { |
1541 | register char *s; | |
1542 | ||
55497cff | 1543 | #ifdef HAS_64K_LIMIT |
79072805 | 1544 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1545 | PerlIO_printf(Perl_debug_log, |
1546 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1547 | my_exit(1); |
1548 | } | |
55497cff | 1549 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1550 | if (SvROK(sv)) |
1551 | sv_unref(sv); | |
79072805 LW |
1552 | if (SvTYPE(sv) < SVt_PV) { |
1553 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 1554 | s = SvPVX(sv); |
79072805 LW |
1555 | } |
1556 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1557 | sv_backoff(sv); | |
463ee0b2 | 1558 | s = SvPVX(sv); |
79072805 LW |
1559 | if (newlen > SvLEN(sv)) |
1560 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1561 | #ifdef HAS_64K_LIMIT |
1562 | if (newlen >= 0x10000) | |
1563 | newlen = 0xFFFF; | |
1564 | #endif | |
79072805 LW |
1565 | } |
1566 | else | |
463ee0b2 | 1567 | s = SvPVX(sv); |
79072805 | 1568 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 1569 | if (SvLEN(sv) && s) { |
f5a32c7f | 1570 | #if defined(MYMALLOC) && !defined(LEAKTEST) |
8d6dde3e IZ |
1571 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
1572 | if (newlen <= l) { | |
1573 | SvLEN_set(sv, l); | |
1574 | return s; | |
1575 | } else | |
c70c8a0a | 1576 | #endif |
79072805 | 1577 | Renew(s,newlen,char); |
8d6dde3e | 1578 | } |
4e83176d | 1579 | else { |
ee5f0761 AMS |
1580 | /* sv_force_normal_flags() must not try to unshare the new |
1581 | PVX we allocate below. AMS 20010713 */ | |
4e83176d | 1582 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
4e83176d AMS |
1583 | SvFAKE_off(sv); |
1584 | SvREADONLY_off(sv); | |
4e83176d AMS |
1585 | } |
1586 | New(703, s, newlen, char); | |
40565179 NIS |
1587 | if (SvPVX(sv) && SvCUR(sv)) { |
1588 | Move(SvPVX(sv), s, SvCUR(sv), char); | |
1589 | } | |
4e83176d | 1590 | } |
79072805 LW |
1591 | SvPV_set(sv, s); |
1592 | SvLEN_set(sv, newlen); | |
1593 | } | |
1594 | return s; | |
1595 | } | |
1596 | ||
954c1994 GS |
1597 | /* |
1598 | =for apidoc sv_setiv | |
1599 | ||
645c22ef DM |
1600 | Copies an integer into the given SV, upgrading first if necessary. |
1601 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1602 | |
1603 | =cut | |
1604 | */ | |
1605 | ||
79072805 | 1606 | void |
864dbfa3 | 1607 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1608 | { |
2213622d | 1609 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
1610 | switch (SvTYPE(sv)) { |
1611 | case SVt_NULL: | |
79072805 | 1612 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1613 | break; |
1614 | case SVt_NV: | |
1615 | sv_upgrade(sv, SVt_PVNV); | |
1616 | break; | |
ed6116ce | 1617 | case SVt_RV: |
463ee0b2 | 1618 | case SVt_PV: |
79072805 | 1619 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1620 | break; |
a0d0e21e LW |
1621 | |
1622 | case SVt_PVGV: | |
a0d0e21e LW |
1623 | case SVt_PVAV: |
1624 | case SVt_PVHV: | |
1625 | case SVt_PVCV: | |
1626 | case SVt_PVFM: | |
1627 | case SVt_PVIO: | |
411caa50 | 1628 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
53e06cf0 | 1629 | OP_DESC(PL_op)); |
463ee0b2 | 1630 | } |
a0d0e21e | 1631 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1632 | SvIVX(sv) = i; |
463ee0b2 | 1633 | SvTAINT(sv); |
79072805 LW |
1634 | } |
1635 | ||
954c1994 GS |
1636 | /* |
1637 | =for apidoc sv_setiv_mg | |
1638 | ||
1639 | Like C<sv_setiv>, but also handles 'set' magic. | |
1640 | ||
1641 | =cut | |
1642 | */ | |
1643 | ||
79072805 | 1644 | void |
864dbfa3 | 1645 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1646 | { |
1647 | sv_setiv(sv,i); | |
1648 | SvSETMAGIC(sv); | |
1649 | } | |
1650 | ||
954c1994 GS |
1651 | /* |
1652 | =for apidoc sv_setuv | |
1653 | ||
645c22ef DM |
1654 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1655 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1656 | |
1657 | =cut | |
1658 | */ | |
1659 | ||
ef50df4b | 1660 | void |
864dbfa3 | 1661 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1662 | { |
55ada374 NC |
1663 | /* With these two if statements: |
1664 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1665 | |
55ada374 NC |
1666 | without |
1667 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1668 | |
55ada374 NC |
1669 | If you wish to remove them, please benchmark to see what the effect is |
1670 | */ | |
28e5dec8 JH |
1671 | if (u <= (UV)IV_MAX) { |
1672 | sv_setiv(sv, (IV)u); | |
1673 | return; | |
1674 | } | |
25da4f38 IZ |
1675 | sv_setiv(sv, 0); |
1676 | SvIsUV_on(sv); | |
1677 | SvUVX(sv) = u; | |
55497cff | 1678 | } |
1679 | ||
954c1994 GS |
1680 | /* |
1681 | =for apidoc sv_setuv_mg | |
1682 | ||
1683 | Like C<sv_setuv>, but also handles 'set' magic. | |
1684 | ||
1685 | =cut | |
1686 | */ | |
1687 | ||
55497cff | 1688 | void |
864dbfa3 | 1689 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1690 | { |
55ada374 NC |
1691 | /* With these two if statements: |
1692 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1693 | |
55ada374 NC |
1694 | without |
1695 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1696 | |
55ada374 NC |
1697 | If you wish to remove them, please benchmark to see what the effect is |
1698 | */ | |
28e5dec8 JH |
1699 | if (u <= (UV)IV_MAX) { |
1700 | sv_setiv(sv, (IV)u); | |
1701 | } else { | |
1702 | sv_setiv(sv, 0); | |
1703 | SvIsUV_on(sv); | |
1704 | sv_setuv(sv,u); | |
1705 | } | |
ef50df4b GS |
1706 | SvSETMAGIC(sv); |
1707 | } | |
1708 | ||
954c1994 GS |
1709 | /* |
1710 | =for apidoc sv_setnv | |
1711 | ||
645c22ef DM |
1712 | Copies a double into the given SV, upgrading first if necessary. |
1713 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1714 | |
1715 | =cut | |
1716 | */ | |
1717 | ||
ef50df4b | 1718 | void |
65202027 | 1719 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1720 | { |
2213622d | 1721 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1722 | switch (SvTYPE(sv)) { |
1723 | case SVt_NULL: | |
1724 | case SVt_IV: | |
79072805 | 1725 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1726 | break; |
a0d0e21e LW |
1727 | case SVt_RV: |
1728 | case SVt_PV: | |
1729 | case SVt_PVIV: | |
79072805 | 1730 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1731 | break; |
827b7e14 | 1732 | |
a0d0e21e | 1733 | case SVt_PVGV: |
a0d0e21e LW |
1734 | case SVt_PVAV: |
1735 | case SVt_PVHV: | |
1736 | case SVt_PVCV: | |
1737 | case SVt_PVFM: | |
1738 | case SVt_PVIO: | |
411caa50 | 1739 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
53e06cf0 | 1740 | OP_NAME(PL_op)); |
79072805 | 1741 | } |
463ee0b2 | 1742 | SvNVX(sv) = num; |
a0d0e21e | 1743 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1744 | SvTAINT(sv); |
79072805 LW |
1745 | } |
1746 | ||
954c1994 GS |
1747 | /* |
1748 | =for apidoc sv_setnv_mg | |
1749 | ||
1750 | Like C<sv_setnv>, but also handles 'set' magic. | |
1751 | ||
1752 | =cut | |
1753 | */ | |
1754 | ||
ef50df4b | 1755 | void |
65202027 | 1756 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1757 | { |
1758 | sv_setnv(sv,num); | |
1759 | SvSETMAGIC(sv); | |
1760 | } | |
1761 | ||
645c22ef DM |
1762 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1763 | * printable version of the offending string | |
1764 | */ | |
1765 | ||
76e3520e | 1766 | STATIC void |
cea2e8a9 | 1767 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e | 1768 | { |
94463019 JH |
1769 | SV *dsv; |
1770 | char tmpbuf[64]; | |
1771 | char *pv; | |
1772 | ||
1773 | if (DO_UTF8(sv)) { | |
1774 | dsv = sv_2mortal(newSVpv("", 0)); | |
1775 | pv = sv_uni_display(dsv, sv, 10, 0); | |
1776 | } else { | |
1777 | char *d = tmpbuf; | |
1778 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; | |
1779 | /* each *s can expand to 4 chars + "...\0", | |
1780 | i.e. need room for 8 chars */ | |
ecdeb87c | 1781 | |
94463019 JH |
1782 | char *s, *end; |
1783 | for (s = SvPVX(sv), end = s + SvCUR(sv); s < end && d < limit; s++) { | |
1784 | int ch = *s & 0xFF; | |
1785 | if (ch & 128 && !isPRINT_LC(ch)) { | |
1786 | *d++ = 'M'; | |
1787 | *d++ = '-'; | |
1788 | ch &= 127; | |
1789 | } | |
1790 | if (ch == '\n') { | |
1791 | *d++ = '\\'; | |
1792 | *d++ = 'n'; | |
1793 | } | |
1794 | else if (ch == '\r') { | |
1795 | *d++ = '\\'; | |
1796 | *d++ = 'r'; | |
1797 | } | |
1798 | else if (ch == '\f') { | |
1799 | *d++ = '\\'; | |
1800 | *d++ = 'f'; | |
1801 | } | |
1802 | else if (ch == '\\') { | |
1803 | *d++ = '\\'; | |
1804 | *d++ = '\\'; | |
1805 | } | |
1806 | else if (ch == '\0') { | |
1807 | *d++ = '\\'; | |
1808 | *d++ = '0'; | |
1809 | } | |
1810 | else if (isPRINT_LC(ch)) | |
1811 | *d++ = ch; | |
1812 | else { | |
1813 | *d++ = '^'; | |
1814 | *d++ = toCTRL(ch); | |
1815 | } | |
1816 | } | |
1817 | if (s < end) { | |
1818 | *d++ = '.'; | |
1819 | *d++ = '.'; | |
1820 | *d++ = '.'; | |
1821 | } | |
1822 | *d = '\0'; | |
1823 | pv = tmpbuf; | |
a0d0e21e | 1824 | } |
a0d0e21e | 1825 | |
533c011a | 1826 | if (PL_op) |
9014280d | 1827 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 JH |
1828 | "Argument \"%s\" isn't numeric in %s", pv, |
1829 | OP_DESC(PL_op)); | |
a0d0e21e | 1830 | else |
9014280d | 1831 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 | 1832 | "Argument \"%s\" isn't numeric", pv); |
a0d0e21e LW |
1833 | } |
1834 | ||
c2988b20 NC |
1835 | /* |
1836 | =for apidoc looks_like_number | |
1837 | ||
645c22ef DM |
1838 | Test if the content of an SV looks like a number (or is a number). |
1839 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1840 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1841 | |
1842 | =cut | |
1843 | */ | |
1844 | ||
1845 | I32 | |
1846 | Perl_looks_like_number(pTHX_ SV *sv) | |
1847 | { | |
1848 | register char *sbegin; | |
1849 | STRLEN len; | |
1850 | ||
1851 | if (SvPOK(sv)) { | |
1852 | sbegin = SvPVX(sv); | |
1853 | len = SvCUR(sv); | |
1854 | } | |
1855 | else if (SvPOKp(sv)) | |
1856 | sbegin = SvPV(sv, len); | |
1857 | else | |
1858 | return 1; /* Historic. Wrong? */ | |
1859 | return grok_number(sbegin, len, NULL); | |
1860 | } | |
25da4f38 IZ |
1861 | |
1862 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1863 | until proven guilty, assume that things are not that bad... */ | |
1864 | ||
645c22ef DM |
1865 | /* |
1866 | NV_PRESERVES_UV: | |
1867 | ||
1868 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
1869 | an IV (an assumption perl has been based on to date) it becomes necessary |
1870 | to remove the assumption that the NV always carries enough precision to | |
1871 | recreate the IV whenever needed, and that the NV is the canonical form. | |
1872 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 1873 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
1874 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
1875 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
1876 | conversion where precision was lost and IV/UV/NV slots that have a | |
1877 | valid conversion which has lost no precision | |
645c22ef | 1878 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
1879 | would lose precision, the precise conversion (or differently |
1880 | imprecise conversion) is also performed and cached, to prevent | |
1881 | requests for different numeric formats on the same SV causing | |
1882 | lossy conversion chains. (lossless conversion chains are perfectly | |
1883 | acceptable (still)) | |
1884 | ||
1885 | ||
1886 | flags are used: | |
1887 | SvIOKp is true if the IV slot contains a valid value | |
1888 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
1889 | SvNOKp is true if the NV slot contains a valid value | |
1890 | SvNOK is true only if the NV value is accurate | |
1891 | ||
1892 | so | |
645c22ef | 1893 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
1894 | IV(or UV) would lose accuracy over a direct conversion from PV to |
1895 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
1896 | SV as IOK NOKp (ie not NOK). | |
1897 | ||
645c22ef | 1898 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
1899 | NV would lose accuracy over a direct conversion from PV to NV. If it |
1900 | would, cache both conversions, flag similarly. | |
1901 | ||
1902 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
1903 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
1904 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
1905 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 1906 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 1907 | |
645c22ef DM |
1908 | The benefit of this is that operations such as pp_add know that if |
1909 | SvIOK is true for both left and right operands, then integer addition | |
1910 | can be used instead of floating point (for cases where the result won't | |
1911 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
1912 | loss of precision compared with integer addition. |
1913 | ||
1914 | * making IV and NV equal status should make maths accurate on 64 bit | |
1915 | platforms | |
1916 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 1917 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
1918 | looking for SvIOK and checking for overflow will not outweigh the |
1919 | fp to integer speedup) | |
1920 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
1921 | values, as the change from SvIOK to SvIOKp will cause a call into | |
1922 | sv_2iv each time rather than a macro access direct to the IV slot | |
1923 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 1924 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
1925 | |
1926 | #################################################################### | |
645c22ef DM |
1927 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
1928 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
1929 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
1930 | #################################################################### |
1931 | ||
645c22ef | 1932 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
1933 | performance ratio. |
1934 | */ | |
1935 | ||
1936 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
1937 | # define IS_NUMBER_UNDERFLOW_IV 1 |
1938 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
1939 | # define IS_NUMBER_IV_AND_UV 2 | |
1940 | # define IS_NUMBER_OVERFLOW_IV 4 | |
1941 | # define IS_NUMBER_OVERFLOW_UV 5 | |
1942 | ||
1943 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
1944 | |
1945 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
1946 | STATIC int | |
645c22ef | 1947 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 1948 | { |
1779d84d | 1949 | 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 |
1950 | if (SvNVX(sv) < (NV)IV_MIN) { |
1951 | (void)SvIOKp_on(sv); | |
1952 | (void)SvNOK_on(sv); | |
1953 | SvIVX(sv) = IV_MIN; | |
1954 | return IS_NUMBER_UNDERFLOW_IV; | |
1955 | } | |
1956 | if (SvNVX(sv) > (NV)UV_MAX) { | |
1957 | (void)SvIOKp_on(sv); | |
1958 | (void)SvNOK_on(sv); | |
1959 | SvIsUV_on(sv); | |
1960 | SvUVX(sv) = UV_MAX; | |
1961 | return IS_NUMBER_OVERFLOW_UV; | |
1962 | } | |
c2988b20 NC |
1963 | (void)SvIOKp_on(sv); |
1964 | (void)SvNOK_on(sv); | |
1965 | /* Can't use strtol etc to convert this string. (See truth table in | |
1966 | sv_2iv */ | |
1967 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
1968 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1969 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
1970 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
1971 | } else { | |
1972 | /* Integer is imprecise. NOK, IOKp */ | |
1973 | } | |
1974 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
1975 | } | |
1976 | SvIsUV_on(sv); | |
1977 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1978 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
1979 | if (SvUVX(sv) == UV_MAX) { | |
1980 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
1981 | possibly be preserved by NV. Hence, it must be overflow. | |
1982 | NOK, IOKp */ | |
1983 | return IS_NUMBER_OVERFLOW_UV; | |
1984 | } | |
1985 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
1986 | } else { | |
1987 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 1988 | } |
c2988b20 | 1989 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 1990 | } |
645c22ef DM |
1991 | #endif /* !NV_PRESERVES_UV*/ |
1992 | ||
1993 | /* | |
1994 | =for apidoc sv_2iv | |
1995 | ||
1996 | Return the integer value of an SV, doing any necessary string conversion, | |
1997 | magic etc. Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
1998 | ||
1999 | =cut | |
2000 | */ | |
28e5dec8 | 2001 | |
a0d0e21e | 2002 | IV |
864dbfa3 | 2003 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
2004 | { |
2005 | if (!sv) | |
2006 | return 0; | |
8990e307 | 2007 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2008 | mg_get(sv); |
2009 | if (SvIOKp(sv)) | |
2010 | return SvIVX(sv); | |
748a9306 | 2011 | if (SvNOKp(sv)) { |
25da4f38 | 2012 | return I_V(SvNVX(sv)); |
748a9306 | 2013 | } |
36477c24 | 2014 | if (SvPOKp(sv) && SvLEN(sv)) |
2015 | return asIV(sv); | |
3fe9a6f1 | 2016 | if (!SvROK(sv)) { |
d008e5eb | 2017 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2018 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2019 | report_uninit(); |
c6ee37c5 | 2020 | } |
36477c24 | 2021 | return 0; |
3fe9a6f1 | 2022 | } |
463ee0b2 | 2023 | } |
ed6116ce | 2024 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2025 | if (SvROK(sv)) { |
a0d0e21e | 2026 | SV* tmpstr; |
1554e226 | 2027 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2028 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2029 | return SvIV(tmpstr); |
56431972 | 2030 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2031 | } |
47deb5e7 NIS |
2032 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2033 | sv_force_normal(sv); | |
2034 | } | |
0336b60e | 2035 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2036 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2037 | report_uninit(); |
ed6116ce LW |
2038 | return 0; |
2039 | } | |
79072805 | 2040 | } |
25da4f38 IZ |
2041 | if (SvIOKp(sv)) { |
2042 | if (SvIsUV(sv)) { | |
2043 | return (IV)(SvUVX(sv)); | |
2044 | } | |
2045 | else { | |
2046 | return SvIVX(sv); | |
2047 | } | |
463ee0b2 | 2048 | } |
748a9306 | 2049 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2050 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2051 | * without also getting a cached IV/UV from it at the same time | |
2052 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2053 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2054 | |
2055 | if (SvTYPE(sv) == SVt_NV) | |
2056 | sv_upgrade(sv, SVt_PVNV); | |
2057 | ||
28e5dec8 JH |
2058 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2059 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2060 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2061 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2062 | cases go to UV */ | |
2063 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
748a9306 | 2064 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2065 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2066 | #ifndef NV_PRESERVES_UV | |
2067 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2068 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2069 | /* Don't flag it as "accurately an integer" if the number | |
2070 | came from a (by definition imprecise) NV operation, and | |
2071 | we're outside the range of NV integer precision */ | |
2072 | #endif | |
2073 | ) { | |
2074 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2075 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2076 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2077 | PTR2UV(sv), |
2078 | SvNVX(sv), | |
2079 | SvIVX(sv))); | |
2080 | ||
2081 | } else { | |
2082 | /* IV not precise. No need to convert from PV, as NV | |
2083 | conversion would already have cached IV if it detected | |
2084 | that PV->IV would be better than PV->NV->IV | |
2085 | flags already correct - don't set public IOK. */ | |
2086 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2087 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2088 | PTR2UV(sv), |
2089 | SvNVX(sv), | |
2090 | SvIVX(sv))); | |
2091 | } | |
2092 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2093 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2094 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2095 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2096 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2097 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2098 | Hopefully for 2s complement IV_MIN is something like | |
2099 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2100 | } |
25da4f38 | 2101 | else { |
ff68c719 | 2102 | SvUVX(sv) = U_V(SvNVX(sv)); |
28e5dec8 JH |
2103 | if ( |
2104 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2105 | #ifndef NV_PRESERVES_UV | |
2106 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2107 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2108 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2109 | /* Don't flag it as "accurately an integer" if the number | |
2110 | came from a (by definition imprecise) NV operation, and | |
2111 | we're outside the range of NV integer precision */ | |
2112 | #endif | |
2113 | ) | |
2114 | SvIOK_on(sv); | |
25da4f38 IZ |
2115 | SvIsUV_on(sv); |
2116 | ret_iv_max: | |
1c846c1f | 2117 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2118 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2119 | PTR2UV(sv), |
57def98f JH |
2120 | SvUVX(sv), |
2121 | SvUVX(sv))); | |
25da4f38 IZ |
2122 | return (IV)SvUVX(sv); |
2123 | } | |
748a9306 LW |
2124 | } |
2125 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2126 | UV value; |
2127 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2128 | /* We want to avoid a possible problem when we cache an IV which |
2129 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2130 | the same as the direct translation of the initial string |
2131 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2132 | be careful to ensure that the value with the .456 is around if the | |
2133 | NV value is requested in the future). | |
1c846c1f | 2134 | |
25da4f38 IZ |
2135 | This means that if we cache such an IV, we need to cache the |
2136 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2137 | cache the NV if we are sure it's not needed. |
25da4f38 | 2138 | */ |
16b7a9a4 | 2139 | |
c2988b20 NC |
2140 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2141 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2142 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2143 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2144 | if (SvTYPE(sv) < SVt_PVIV) |
2145 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2146 | (void)SvIOK_on(sv); |
c2988b20 NC |
2147 | } else if (SvTYPE(sv) < SVt_PVNV) |
2148 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2149 | |
c2988b20 NC |
2150 | /* If NV preserves UV then we only use the UV value if we know that |
2151 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2152 | then the value returned may have more precision than atof() will | |
2153 | return, even though value isn't perfectly accurate. */ | |
2154 | if ((numtype & (IS_NUMBER_IN_UV | |
2155 | #ifdef NV_PRESERVES_UV | |
2156 | | IS_NUMBER_NOT_INT | |
2157 | #endif | |
2158 | )) == IS_NUMBER_IN_UV) { | |
2159 | /* This won't turn off the public IOK flag if it was set above */ | |
2160 | (void)SvIOKp_on(sv); | |
2161 | ||
2162 | if (!(numtype & IS_NUMBER_NEG)) { | |
2163 | /* positive */; | |
2164 | if (value <= (UV)IV_MAX) { | |
2165 | SvIVX(sv) = (IV)value; | |
2166 | } else { | |
2167 | SvUVX(sv) = value; | |
2168 | SvIsUV_on(sv); | |
2169 | } | |
2170 | } else { | |
2171 | /* 2s complement assumption */ | |
2172 | if (value <= (UV)IV_MIN) { | |
2173 | SvIVX(sv) = -(IV)value; | |
2174 | } else { | |
2175 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2176 | I'm assuming it will be rare. */ |
c2988b20 NC |
2177 | if (SvTYPE(sv) < SVt_PVNV) |
2178 | sv_upgrade(sv, SVt_PVNV); | |
2179 | SvNOK_on(sv); | |
2180 | SvIOK_off(sv); | |
2181 | SvIOKp_on(sv); | |
2182 | SvNVX(sv) = -(NV)value; | |
2183 | SvIVX(sv) = IV_MIN; | |
2184 | } | |
2185 | } | |
2186 | } | |
2187 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2188 | will be in the previous block to set the IV slot, and the next | |
2189 | block to set the NV slot. So no else here. */ | |
2190 | ||
2191 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2192 | != IS_NUMBER_IN_UV) { | |
2193 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
2194 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2195 | |
c2988b20 NC |
2196 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2197 | not_a_number(sv); | |
28e5dec8 | 2198 | |
65202027 | 2199 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2200 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2201 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2202 | #else |
1779d84d | 2203 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"NVgf")\n", |
c2988b20 | 2204 | PTR2UV(sv), SvNVX(sv))); |
65202027 | 2205 | #endif |
28e5dec8 JH |
2206 | |
2207 | ||
2208 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2209 | (void)SvIOKp_on(sv); |
2210 | (void)SvNOK_on(sv); | |
2211 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2212 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2213 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2214 | SvIOK_on(sv); | |
28e5dec8 | 2215 | } else { |
c2988b20 NC |
2216 | /* Integer is imprecise. NOK, IOKp */ |
2217 | } | |
2218 | /* UV will not work better than IV */ | |
2219 | } else { | |
2220 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2221 | SvIsUV_on(sv); | |
2222 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2223 | SvUVX(sv) = UV_MAX; | |
2224 | SvIsUV_on(sv); | |
2225 | } else { | |
2226 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2227 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ | |
2228 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2229 | SvIOK_on(sv); | |
28e5dec8 JH |
2230 | SvIsUV_on(sv); |
2231 | } else { | |
c2988b20 NC |
2232 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2233 | SvIsUV_on(sv); | |
28e5dec8 | 2234 | } |
28e5dec8 | 2235 | } |
c2988b20 NC |
2236 | goto ret_iv_max; |
2237 | } | |
28e5dec8 | 2238 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2239 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2240 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2241 | /* The IV slot will have been set from value returned by | |
2242 | grok_number above. The NV slot has just been set using | |
2243 | Atof. */ | |
560b0c46 | 2244 | SvNOK_on(sv); |
c2988b20 NC |
2245 | assert (SvIOKp(sv)); |
2246 | } else { | |
2247 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2248 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2249 | /* Small enough to preserve all bits. */ | |
2250 | (void)SvIOKp_on(sv); | |
2251 | SvNOK_on(sv); | |
2252 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2253 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2254 | SvIOK_on(sv); | |
2255 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2256 | this NV is in the preserved range, therefore: */ | |
2257 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2258 | < (UV)IV_MAX)) { | |
1779d84d | 2259 | 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 |
2260 | } |
2261 | } else { | |
2262 | /* IN_UV NOT_INT | |
2263 | 0 0 already failed to read UV. | |
2264 | 0 1 already failed to read UV. | |
2265 | 1 0 you won't get here in this case. IV/UV | |
2266 | slot set, public IOK, Atof() unneeded. | |
2267 | 1 1 already read UV. | |
2268 | so there's no point in sv_2iuv_non_preserve() attempting | |
2269 | to use atol, strtol, strtoul etc. */ | |
2270 | if (sv_2iuv_non_preserve (sv, numtype) | |
2271 | >= IS_NUMBER_OVERFLOW_IV) | |
2272 | goto ret_iv_max; | |
2273 | } | |
2274 | } | |
28e5dec8 | 2275 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2276 | } |
28e5dec8 | 2277 | } else { |
599cee73 | 2278 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2279 | report_uninit(); |
25da4f38 IZ |
2280 | if (SvTYPE(sv) < SVt_IV) |
2281 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2282 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2283 | return 0; |
79072805 | 2284 | } |
1d7c1841 GS |
2285 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2286 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2287 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2288 | } |
2289 | ||
645c22ef DM |
2290 | /* |
2291 | =for apidoc sv_2uv | |
2292 | ||
2293 | Return the unsigned integer value of an SV, doing any necessary string | |
2294 | conversion, magic etc. Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> | |
2295 | macros. | |
2296 | ||
2297 | =cut | |
2298 | */ | |
2299 | ||
ff68c719 | 2300 | UV |
864dbfa3 | 2301 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 2302 | { |
2303 | if (!sv) | |
2304 | return 0; | |
2305 | if (SvGMAGICAL(sv)) { | |
2306 | mg_get(sv); | |
2307 | if (SvIOKp(sv)) | |
2308 | return SvUVX(sv); | |
2309 | if (SvNOKp(sv)) | |
2310 | return U_V(SvNVX(sv)); | |
36477c24 | 2311 | if (SvPOKp(sv) && SvLEN(sv)) |
2312 | return asUV(sv); | |
3fe9a6f1 | 2313 | if (!SvROK(sv)) { |
d008e5eb | 2314 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2315 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2316 | report_uninit(); |
c6ee37c5 | 2317 | } |
36477c24 | 2318 | return 0; |
3fe9a6f1 | 2319 | } |
ff68c719 | 2320 | } |
2321 | if (SvTHINKFIRST(sv)) { | |
2322 | if (SvROK(sv)) { | |
ff68c719 | 2323 | SV* tmpstr; |
1554e226 | 2324 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2325 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2326 | return SvUV(tmpstr); |
56431972 | 2327 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2328 | } |
8a818333 NIS |
2329 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2330 | sv_force_normal(sv); | |
2331 | } | |
0336b60e | 2332 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2333 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2334 | report_uninit(); |
ff68c719 | 2335 | return 0; |
2336 | } | |
2337 | } | |
25da4f38 IZ |
2338 | if (SvIOKp(sv)) { |
2339 | if (SvIsUV(sv)) { | |
2340 | return SvUVX(sv); | |
2341 | } | |
2342 | else { | |
2343 | return (UV)SvIVX(sv); | |
2344 | } | |
ff68c719 | 2345 | } |
2346 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2347 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2348 | * without also getting a cached IV/UV from it at the same time | |
2349 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2350 | * IV or UV at same time to avoid this. */ | |
2351 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2352 | ||
25da4f38 IZ |
2353 | if (SvTYPE(sv) == SVt_NV) |
2354 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2355 | |
2356 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2357 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
f7bbb42a | 2358 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2359 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2360 | #ifndef NV_PRESERVES_UV | |
2361 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2362 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2363 | /* Don't flag it as "accurately an integer" if the number | |
2364 | came from a (by definition imprecise) NV operation, and | |
2365 | we're outside the range of NV integer precision */ | |
2366 | #endif | |
2367 | ) { | |
2368 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2369 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2370 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2371 | PTR2UV(sv), |
2372 | SvNVX(sv), | |
2373 | SvIVX(sv))); | |
2374 | ||
2375 | } else { | |
2376 | /* IV not precise. No need to convert from PV, as NV | |
2377 | conversion would already have cached IV if it detected | |
2378 | that PV->IV would be better than PV->NV->IV | |
2379 | flags already correct - don't set public IOK. */ | |
2380 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2381 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2382 | PTR2UV(sv), |
2383 | SvNVX(sv), | |
2384 | SvIVX(sv))); | |
2385 | } | |
2386 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2387 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2388 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2389 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2390 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2391 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2392 | Hopefully for 2s complement IV_MIN is something like | |
2393 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2394 | } |
28e5dec8 JH |
2395 | else { |
2396 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2397 | if ( | |
2398 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2399 | #ifndef NV_PRESERVES_UV | |
2400 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2401 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2402 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2403 | /* Don't flag it as "accurately an integer" if the number | |
2404 | came from a (by definition imprecise) NV operation, and | |
2405 | we're outside the range of NV integer precision */ | |
2406 | #endif | |
2407 | ) | |
2408 | SvIOK_on(sv); | |
2409 | SvIsUV_on(sv); | |
1c846c1f | 2410 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2411 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2412 | PTR2UV(sv), |
28e5dec8 JH |
2413 | SvUVX(sv), |
2414 | SvUVX(sv))); | |
25da4f38 | 2415 | } |
ff68c719 | 2416 | } |
2417 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2418 | UV value; |
2419 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2420 | |
2421 | /* We want to avoid a possible problem when we cache a UV which | |
2422 | may be later translated to an NV, and the resulting NV is not | |
2423 | the translation of the initial data. | |
1c846c1f | 2424 | |
25da4f38 IZ |
2425 | This means that if we cache such a UV, we need to cache the |
2426 | NV as well. Moreover, we trade speed for space, and do not | |
2427 | cache the NV if not needed. | |
2428 | */ | |
16b7a9a4 | 2429 | |
c2988b20 NC |
2430 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2431 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2432 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2433 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2434 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2435 | sv_upgrade(sv, SVt_PVIV); |
2436 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2437 | } else if (SvTYPE(sv) < SVt_PVNV) |
2438 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2439 | |
c2988b20 NC |
2440 | /* If NV preserves UV then we only use the UV value if we know that |
2441 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2442 | then the value returned may have more precision than atof() will | |
2443 | return, even though it isn't accurate. */ | |
2444 | if ((numtype & (IS_NUMBER_IN_UV | |
2445 | #ifdef NV_PRESERVES_UV | |
2446 | | IS_NUMBER_NOT_INT | |
2447 | #endif | |
2448 | )) == IS_NUMBER_IN_UV) { | |
2449 | /* This won't turn off the public IOK flag if it was set above */ | |
2450 | (void)SvIOKp_on(sv); | |
2451 | ||
2452 | if (!(numtype & IS_NUMBER_NEG)) { | |
2453 | /* positive */; | |
2454 | if (value <= (UV)IV_MAX) { | |
2455 | SvIVX(sv) = (IV)value; | |
28e5dec8 JH |
2456 | } else { |
2457 | /* it didn't overflow, and it was positive. */ | |
c2988b20 | 2458 | SvUVX(sv) = value; |
28e5dec8 JH |
2459 | SvIsUV_on(sv); |
2460 | } | |
c2988b20 NC |
2461 | } else { |
2462 | /* 2s complement assumption */ | |
2463 | if (value <= (UV)IV_MIN) { | |
2464 | SvIVX(sv) = -(IV)value; | |
2465 | } else { | |
2466 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2467 | I'm assuming it will be rare. */ |
c2988b20 NC |
2468 | if (SvTYPE(sv) < SVt_PVNV) |
2469 | sv_upgrade(sv, SVt_PVNV); | |
2470 | SvNOK_on(sv); | |
2471 | SvIOK_off(sv); | |
2472 | SvIOKp_on(sv); | |
2473 | SvNVX(sv) = -(NV)value; | |
2474 | SvIVX(sv) = IV_MIN; | |
2475 | } | |
2476 | } | |
2477 | } | |
2478 | ||
2479 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2480 | != IS_NUMBER_IN_UV) { | |
2481 | /* It wasn't an integer, or it overflowed the UV. */ | |
2482 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2483 | |
c2988b20 | 2484 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2485 | not_a_number(sv); |
2486 | ||
2487 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2488 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2489 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2490 | #else |
1779d84d | 2491 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"NVgf")\n", |
c2988b20 | 2492 | PTR2UV(sv), SvNVX(sv))); |
28e5dec8 JH |
2493 | #endif |
2494 | ||
2495 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2496 | (void)SvIOKp_on(sv); |
2497 | (void)SvNOK_on(sv); | |
2498 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2499 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2500 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2501 | SvIOK_on(sv); | |
2502 | } else { | |
2503 | /* Integer is imprecise. NOK, IOKp */ | |
2504 | } | |
2505 | /* UV will not work better than IV */ | |
2506 | } else { | |
2507 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2508 | SvIsUV_on(sv); | |
2509 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2510 | SvUVX(sv) = UV_MAX; | |
2511 | SvIsUV_on(sv); | |
2512 | } else { | |
2513 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2514 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs | |
2515 | NV preservse UV so can do correct comparison. */ | |
2516 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2517 | SvIOK_on(sv); | |
2518 | SvIsUV_on(sv); | |
2519 | } else { | |
2520 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2521 | SvIsUV_on(sv); | |
2522 | } | |
2523 | } | |
2524 | } | |
28e5dec8 | 2525 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2526 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2527 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2528 | /* The UV slot will have been set from value returned by | |
2529 | grok_number above. The NV slot has just been set using | |
2530 | Atof. */ | |
560b0c46 | 2531 | SvNOK_on(sv); |
c2988b20 NC |
2532 | assert (SvIOKp(sv)); |
2533 | } else { | |
2534 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2535 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2536 | /* Small enough to preserve all bits. */ | |
2537 | (void)SvIOKp_on(sv); | |
2538 | SvNOK_on(sv); | |
2539 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2540 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2541 | SvIOK_on(sv); | |
2542 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2543 | this NV is in the preserved range, therefore: */ | |
2544 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2545 | < (UV)IV_MAX)) { | |
1779d84d | 2546 | 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 |
2547 | } |
2548 | } else | |
2549 | sv_2iuv_non_preserve (sv, numtype); | |
2550 | } | |
28e5dec8 | 2551 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2552 | } |
ff68c719 | 2553 | } |
2554 | else { | |
d008e5eb | 2555 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2556 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2557 | report_uninit(); |
c6ee37c5 | 2558 | } |
25da4f38 IZ |
2559 | if (SvTYPE(sv) < SVt_IV) |
2560 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2561 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2562 | return 0; |
2563 | } | |
25da4f38 | 2564 | |
1d7c1841 GS |
2565 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2566 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2567 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2568 | } |
2569 | ||
645c22ef DM |
2570 | /* |
2571 | =for apidoc sv_2nv | |
2572 | ||
2573 | Return the num value of an SV, doing any necessary string or integer | |
2574 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2575 | macros. | |
2576 | ||
2577 | =cut | |
2578 | */ | |
2579 | ||
65202027 | 2580 | NV |
864dbfa3 | 2581 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2582 | { |
2583 | if (!sv) | |
2584 | return 0.0; | |
8990e307 | 2585 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2586 | mg_get(sv); |
2587 | if (SvNOKp(sv)) | |
2588 | return SvNVX(sv); | |
a0d0e21e | 2589 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2590 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
2591 | !grok_number(SvPVX(sv), SvCUR(sv), NULL)) | |
a0d0e21e | 2592 | not_a_number(sv); |
097ee67d | 2593 | return Atof(SvPVX(sv)); |
a0d0e21e | 2594 | } |
25da4f38 | 2595 | if (SvIOKp(sv)) { |
1c846c1f | 2596 | if (SvIsUV(sv)) |
65202027 | 2597 | return (NV)SvUVX(sv); |
25da4f38 | 2598 | else |
65202027 | 2599 | return (NV)SvIVX(sv); |
25da4f38 | 2600 | } |
16d20bd9 | 2601 | if (!SvROK(sv)) { |
d008e5eb | 2602 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2603 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2604 | report_uninit(); |
c6ee37c5 | 2605 | } |
16d20bd9 AD |
2606 | return 0; |
2607 | } | |
463ee0b2 | 2608 | } |
ed6116ce | 2609 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2610 | if (SvROK(sv)) { |
a0d0e21e | 2611 | SV* tmpstr; |
1554e226 | 2612 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2613 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2614 | return SvNV(tmpstr); |
56431972 | 2615 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2616 | } |
8a818333 NIS |
2617 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2618 | sv_force_normal(sv); | |
2619 | } | |
0336b60e | 2620 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2621 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2622 | report_uninit(); |
ed6116ce LW |
2623 | return 0.0; |
2624 | } | |
79072805 LW |
2625 | } |
2626 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2627 | if (SvTYPE(sv) == SVt_IV) |
2628 | sv_upgrade(sv, SVt_PVNV); | |
2629 | else | |
2630 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2631 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2632 | DEBUG_c({ |
f93f4e46 | 2633 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2634 | PerlIO_printf(Perl_debug_log, |
2635 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2636 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2637 | RESTORE_NUMERIC_LOCAL(); |
2638 | }); | |
65202027 | 2639 | #else |
572bbb43 | 2640 | DEBUG_c({ |
f93f4e46 | 2641 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2642 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%"NVgf")\n", |
1d7c1841 | 2643 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2644 | RESTORE_NUMERIC_LOCAL(); |
2645 | }); | |
572bbb43 | 2646 | #endif |
79072805 LW |
2647 | } |
2648 | else if (SvTYPE(sv) < SVt_PVNV) | |
2649 | sv_upgrade(sv, SVt_PVNV); | |
59d8ce62 NC |
2650 | if (SvNOKp(sv)) { |
2651 | return SvNVX(sv); | |
61604483 | 2652 | } |
59d8ce62 | 2653 | if (SvIOKp(sv)) { |
65202027 | 2654 | SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv); |
28e5dec8 JH |
2655 | #ifdef NV_PRESERVES_UV |
2656 | SvNOK_on(sv); | |
2657 | #else | |
2658 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2659 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2660 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2661 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2662 | SvNOK_on(sv); | |
2663 | else | |
2664 | SvNOKp_on(sv); | |
2665 | #endif | |
93a17b20 | 2666 | } |
748a9306 | 2667 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2668 | UV value; |
2669 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2670 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) | |
a0d0e21e | 2671 | not_a_number(sv); |
28e5dec8 | 2672 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2673 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2674 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2675 | /* It's definitely an integer */ |
c2988b20 NC |
2676 | SvNVX(sv) = (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value; |
2677 | } else | |
2678 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 JH |
2679 | SvNOK_on(sv); |
2680 | #else | |
c2988b20 | 2681 | SvNVX(sv) = Atof(SvPVX(sv)); |
28e5dec8 JH |
2682 | /* Only set the public NV OK flag if this NV preserves the value in |
2683 | the PV at least as well as an IV/UV would. | |
2684 | Not sure how to do this 100% reliably. */ | |
2685 | /* if that shift count is out of range then Configure's test is | |
2686 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2687 | UV_BITS */ | |
2688 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2689 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2690 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2691 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2692 | /* Can't use strtol etc to convert this string, so don't try. | |
2693 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2694 | SvNOK_on(sv); | |
2695 | } else { | |
2696 | /* value has been set. It may not be precise. */ | |
2697 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2698 | /* 2s complement assumption for (UV)IV_MIN */ | |
2699 | SvNOK_on(sv); /* Integer is too negative. */ | |
2700 | } else { | |
2701 | SvNOKp_on(sv); | |
2702 | SvIOKp_on(sv); | |
6fa402ec | 2703 | |
c2988b20 NC |
2704 | if (numtype & IS_NUMBER_NEG) { |
2705 | SvIVX(sv) = -(IV)value; | |
2706 | } else if (value <= (UV)IV_MAX) { | |
2707 | SvIVX(sv) = (IV)value; | |
2708 | } else { | |
2709 | SvUVX(sv) = value; | |
2710 | SvIsUV_on(sv); | |
2711 | } | |
2712 | ||
2713 | if (numtype & IS_NUMBER_NOT_INT) { | |
2714 | /* I believe that even if the original PV had decimals, | |
2715 | they are lost beyond the limit of the FP precision. | |
2716 | However, neither is canonical, so both only get p | |
2717 | flags. NWC, 2000/11/25 */ | |
2718 | /* Both already have p flags, so do nothing */ | |
2719 | } else { | |
2720 | NV nv = SvNVX(sv); | |
2721 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2722 | if (SvIVX(sv) == I_V(nv)) { | |
2723 | SvNOK_on(sv); | |
2724 | SvIOK_on(sv); | |
2725 | } else { | |
2726 | SvIOK_on(sv); | |
2727 | /* It had no "." so it must be integer. */ | |
2728 | } | |
2729 | } else { | |
2730 | /* between IV_MAX and NV(UV_MAX). | |
2731 | Could be slightly > UV_MAX */ | |
6fa402ec | 2732 | |
c2988b20 NC |
2733 | if (numtype & IS_NUMBER_NOT_INT) { |
2734 | /* UV and NV both imprecise. */ | |
2735 | } else { | |
2736 | UV nv_as_uv = U_V(nv); | |
2737 | ||
2738 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2739 | SvNOK_on(sv); | |
2740 | SvIOK_on(sv); | |
2741 | } else { | |
2742 | SvIOK_on(sv); | |
2743 | } | |
2744 | } | |
2745 | } | |
2746 | } | |
2747 | } | |
2748 | } | |
28e5dec8 | 2749 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2750 | } |
79072805 | 2751 | else { |
599cee73 | 2752 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2753 | report_uninit(); |
25da4f38 IZ |
2754 | if (SvTYPE(sv) < SVt_NV) |
2755 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2756 | /* XXX Ilya implies that this is a bug in callers that assume this |
2757 | and ideally should be fixed. */ | |
25da4f38 | 2758 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2759 | return 0.0; |
79072805 | 2760 | } |
572bbb43 | 2761 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2762 | DEBUG_c({ |
f93f4e46 | 2763 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2764 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2765 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2766 | RESTORE_NUMERIC_LOCAL(); |
2767 | }); | |
65202027 | 2768 | #else |
572bbb43 | 2769 | DEBUG_c({ |
f93f4e46 | 2770 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2771 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%"NVgf")\n", |
1d7c1841 | 2772 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2773 | RESTORE_NUMERIC_LOCAL(); |
2774 | }); | |
572bbb43 | 2775 | #endif |
463ee0b2 | 2776 | return SvNVX(sv); |
79072805 LW |
2777 | } |
2778 | ||
645c22ef DM |
2779 | /* asIV(): extract an integer from the string value of an SV. |
2780 | * Caller must validate PVX */ | |
2781 | ||
76e3520e | 2782 | STATIC IV |
cea2e8a9 | 2783 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2784 | { |
c2988b20 NC |
2785 | UV value; |
2786 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2787 | ||
2788 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2789 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2790 | /* It's definitely an integer */ |
c2988b20 NC |
2791 | if (numtype & IS_NUMBER_NEG) { |
2792 | if (value < (UV)IV_MIN) | |
2793 | return -(IV)value; | |
2794 | } else { | |
2795 | if (value < (UV)IV_MAX) | |
2796 | return (IV)value; | |
2797 | } | |
2798 | } | |
d008e5eb | 2799 | if (!numtype) { |
d008e5eb GS |
2800 | if (ckWARN(WARN_NUMERIC)) |
2801 | not_a_number(sv); | |
2802 | } | |
c2988b20 | 2803 | return I_V(Atof(SvPVX(sv))); |
36477c24 | 2804 | } |
2805 | ||
645c22ef DM |
2806 | /* asUV(): extract an unsigned integer from the string value of an SV |
2807 | * Caller must validate PVX */ | |
2808 | ||
76e3520e | 2809 | STATIC UV |
cea2e8a9 | 2810 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2811 | { |
c2988b20 NC |
2812 | UV value; |
2813 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
36477c24 | 2814 | |
c2988b20 NC |
2815 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2816 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2817 | /* It's definitely an integer */ |
6fa402ec | 2818 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2819 | return value; |
2820 | } | |
d008e5eb | 2821 | if (!numtype) { |
d008e5eb GS |
2822 | if (ckWARN(WARN_NUMERIC)) |
2823 | not_a_number(sv); | |
2824 | } | |
097ee67d | 2825 | return U_V(Atof(SvPVX(sv))); |
36477c24 | 2826 | } |
2827 | ||
645c22ef DM |
2828 | /* |
2829 | =for apidoc sv_2pv_nolen | |
2830 | ||
2831 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2832 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2833 | =cut | |
2834 | */ | |
2835 | ||
79072805 | 2836 | char * |
864dbfa3 | 2837 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
2838 | { |
2839 | STRLEN n_a; | |
2840 | return sv_2pv(sv, &n_a); | |
2841 | } | |
2842 | ||
645c22ef DM |
2843 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2844 | * UV as a string towards the end of buf, and return pointers to start and | |
2845 | * end of it. | |
2846 | * | |
2847 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2848 | */ | |
2849 | ||
864dbfa3 | 2850 | static char * |
25da4f38 IZ |
2851 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
2852 | { | |
25da4f38 IZ |
2853 | char *ptr = buf + TYPE_CHARS(UV); |
2854 | char *ebuf = ptr; | |
2855 | int sign; | |
25da4f38 IZ |
2856 | |
2857 | if (is_uv) | |
2858 | sign = 0; | |
2859 | else if (iv >= 0) { | |
2860 | uv = iv; | |
2861 | sign = 0; | |
2862 | } else { | |
2863 | uv = -iv; | |
2864 | sign = 1; | |
2865 | } | |
2866 | do { | |
2867 | *--ptr = '0' + (uv % 10); | |
2868 | } while (uv /= 10); | |
2869 | if (sign) | |
2870 | *--ptr = '-'; | |
2871 | *peob = ebuf; | |
2872 | return ptr; | |
2873 | } | |
2874 | ||
645c22ef DM |
2875 | /* For backwards-compatibility only. sv_2pv() is normally #def'ed to |
2876 | * C<sv_2pv_macro()>. See also C<sv_2pv_flags()>. | |
2877 | */ | |
2878 | ||
1fa8b10d | 2879 | char * |
864dbfa3 | 2880 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) |
79072805 | 2881 | { |
36f65ada | 2882 | return sv_2pv_flags(sv, lp, SV_GMAGIC); |
8d6d96c1 HS |
2883 | } |
2884 | ||
645c22ef DM |
2885 | /* |
2886 | =for apidoc sv_2pv_flags | |
2887 | ||
ff276b08 | 2888 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
2889 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
2890 | if necessary. | |
2891 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
2892 | usually end up here too. | |
2893 | ||
2894 | =cut | |
2895 | */ | |
2896 | ||
8d6d96c1 HS |
2897 | char * |
2898 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
2899 | { | |
79072805 LW |
2900 | register char *s; |
2901 | int olderrno; | |
46fc3d4c | 2902 | SV *tsv; |
25da4f38 IZ |
2903 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
2904 | char *tmpbuf = tbuf; | |
79072805 | 2905 | |
463ee0b2 LW |
2906 | if (!sv) { |
2907 | *lp = 0; | |
2908 | return ""; | |
2909 | } | |
8990e307 | 2910 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
2911 | if (flags & SV_GMAGIC) |
2912 | mg_get(sv); | |
463ee0b2 LW |
2913 | if (SvPOKp(sv)) { |
2914 | *lp = SvCUR(sv); | |
2915 | return SvPVX(sv); | |
2916 | } | |
cf2093f6 | 2917 | if (SvIOKp(sv)) { |
1c846c1f | 2918 | if (SvIsUV(sv)) |
57def98f | 2919 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 2920 | else |
57def98f | 2921 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 2922 | tsv = Nullsv; |
a0d0e21e | 2923 | goto tokensave; |
463ee0b2 LW |
2924 | } |
2925 | if (SvNOKp(sv)) { | |
2d4389e4 | 2926 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 2927 | tsv = Nullsv; |
a0d0e21e | 2928 | goto tokensave; |
463ee0b2 | 2929 | } |
16d20bd9 | 2930 | if (!SvROK(sv)) { |
d008e5eb | 2931 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2932 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2933 | report_uninit(); |
c6ee37c5 | 2934 | } |
16d20bd9 AD |
2935 | *lp = 0; |
2936 | return ""; | |
2937 | } | |
463ee0b2 | 2938 | } |
ed6116ce LW |
2939 | if (SvTHINKFIRST(sv)) { |
2940 | if (SvROK(sv)) { | |
a0d0e21e | 2941 | SV* tmpstr; |
1554e226 | 2942 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
1dc13c17 | 2943 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2944 | return SvPV(tmpstr,*lp); |
ed6116ce LW |
2945 | sv = (SV*)SvRV(sv); |
2946 | if (!sv) | |
2947 | s = "NULLREF"; | |
2948 | else { | |
f9277f47 IZ |
2949 | MAGIC *mg; |
2950 | ||
ed6116ce | 2951 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
2952 | case SVt_PVMG: |
2953 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 2954 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
3149a8e4 | 2955 | == (SVs_OBJECT|SVs_RMG)) |
57668c4d | 2956 | && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp") |
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; | |
2966 | U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12; | |
2967 | ||
155aba94 | 2968 | while((ch = *fptr++)) { |
8782bef2 GB |
2969 | if(reganch & 1) { |
2970 | reflags[left++] = ch; | |
2971 | } | |
2972 | else { | |
2973 | reflags[right--] = ch; | |
2974 | } | |
2975 | reganch >>= 1; | |
2976 | } | |
2977 | if(left != 4) { | |
2978 | reflags[left] = '-'; | |
2979 | left = 5; | |
2980 | } | |
2981 | ||
2982 | mg->mg_len = re->prelen + 4 + left; | |
2983 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); | |
2984 | Copy("(?", mg->mg_ptr, 2, char); | |
2985 | Copy(reflags, mg->mg_ptr+2, left, char); | |
2986 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
2987 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
1bd3ad17 IZ |
2988 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
2989 | mg->mg_ptr[mg->mg_len] = 0; | |
2990 | } | |
3280af22 | 2991 | PL_reginterp_cnt += re->program[0].next_off; |
1bd3ad17 IZ |
2992 | *lp = mg->mg_len; |
2993 | return mg->mg_ptr; | |
f9277f47 IZ |
2994 | } |
2995 | /* Fall through */ | |
ed6116ce LW |
2996 | case SVt_NULL: |
2997 | case SVt_IV: | |
2998 | case SVt_NV: | |
2999 | case SVt_RV: | |
3000 | case SVt_PV: | |
3001 | case SVt_PVIV: | |
3002 | case SVt_PVNV: | |
81689caa HS |
3003 | case SVt_PVBM: if (SvROK(sv)) |
3004 | s = "REF"; | |
3005 | else | |
3006 | s = "SCALAR"; break; | |
ed6116ce LW |
3007 | case SVt_PVLV: s = "LVALUE"; break; |
3008 | case SVt_PVAV: s = "ARRAY"; break; | |
3009 | case SVt_PVHV: s = "HASH"; break; | |
3010 | case SVt_PVCV: s = "CODE"; break; | |
3011 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 3012 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 3013 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
3014 | default: s = "UNKNOWN"; break; |
3015 | } | |
46fc3d4c | 3016 | tsv = NEWSV(0,0); |
c86bf373 AMS |
3017 | if (SvOBJECT(sv)) { |
3018 | HV *svs = SvSTASH(sv); | |
3019 | Perl_sv_setpvf( | |
3020 | aTHX_ tsv, "%s=%s", | |
3021 | /* [20011101.072] This bandaid for C<package;> | |
3022 | should eventually be removed. AMS 20011103 */ | |
3023 | (svs ? HvNAME(svs) : "<none>"), s | |
3024 | ); | |
3025 | } | |
ed6116ce | 3026 | else |
46fc3d4c | 3027 | sv_setpv(tsv, s); |
57def98f | 3028 | Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv)); |
a0d0e21e | 3029 | goto tokensaveref; |
463ee0b2 | 3030 | } |
ed6116ce LW |
3031 | *lp = strlen(s); |
3032 | return s; | |
79072805 | 3033 | } |
0336b60e | 3034 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3035 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 3036 | report_uninit(); |
ed6116ce LW |
3037 | *lp = 0; |
3038 | return ""; | |
79072805 | 3039 | } |
79072805 | 3040 | } |
28e5dec8 JH |
3041 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3042 | /* I'm assuming that if both IV and NV are equally valid then | |
3043 | converting the IV is going to be more efficient */ | |
3044 | U32 isIOK = SvIOK(sv); | |
3045 | U32 isUIOK = SvIsUV(sv); | |
3046 | char buf[TYPE_CHARS(UV)]; | |
3047 | char *ebuf, *ptr; | |
3048 | ||
3049 | if (SvTYPE(sv) < SVt_PVIV) | |
3050 | sv_upgrade(sv, SVt_PVIV); | |
3051 | if (isUIOK) | |
3052 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3053 | else | |
3054 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
3055 | SvGROW(sv, ebuf - ptr + 1); /* inlined from sv_setpvn */ | |
3056 | Move(ptr,SvPVX(sv),ebuf - ptr,char); | |
3057 | SvCUR_set(sv, ebuf - ptr); | |
3058 | s = SvEND(sv); | |
3059 | *s = '\0'; | |
3060 | if (isIOK) | |
3061 | SvIOK_on(sv); | |
3062 | else | |
3063 | SvIOKp_on(sv); | |
3064 | if (isUIOK) | |
3065 | SvIsUV_on(sv); | |
3066 | } | |
3067 | else if (SvNOKp(sv)) { | |
79072805 LW |
3068 | if (SvTYPE(sv) < SVt_PVNV) |
3069 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3070 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
59155cc0 | 3071 | SvGROW(sv, NV_DIG + 20); |
463ee0b2 | 3072 | s = SvPVX(sv); |
79072805 | 3073 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3074 | #ifdef apollo |
463ee0b2 | 3075 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3076 | (void)strcpy(s,"0"); |
3077 | else | |
3078 | #endif /*apollo*/ | |
bbce6d69 | 3079 | { |
2d4389e4 | 3080 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3081 | } |
79072805 | 3082 | errno = olderrno; |
a0d0e21e LW |
3083 | #ifdef FIXNEGATIVEZERO |
3084 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3085 | strcpy(s,"0"); | |
3086 | #endif | |
79072805 LW |
3087 | while (*s) s++; |
3088 | #ifdef hcx | |
3089 | if (s[-1] == '.') | |
46fc3d4c | 3090 | *--s = '\0'; |
79072805 LW |
3091 | #endif |
3092 | } | |
79072805 | 3093 | else { |
0336b60e IZ |
3094 | if (ckWARN(WARN_UNINITIALIZED) |
3095 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
1d7c1841 | 3096 | report_uninit(); |
a0d0e21e | 3097 | *lp = 0; |
25da4f38 IZ |
3098 | if (SvTYPE(sv) < SVt_PV) |
3099 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3100 | sv_upgrade(sv, SVt_PV); | |
a0d0e21e | 3101 | return ""; |
79072805 | 3102 | } |
463ee0b2 LW |
3103 | *lp = s - SvPVX(sv); |
3104 | SvCUR_set(sv, *lp); | |
79072805 | 3105 | SvPOK_on(sv); |
1d7c1841 GS |
3106 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3107 | PTR2UV(sv),SvPVX(sv))); | |
463ee0b2 | 3108 | return SvPVX(sv); |
a0d0e21e LW |
3109 | |
3110 | tokensave: | |
3111 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3112 | /* Sneaky stuff here */ | |
3113 | ||
3114 | tokensaveref: | |
46fc3d4c | 3115 | if (!tsv) |
96827780 | 3116 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3117 | sv_2mortal(tsv); |
3118 | *lp = SvCUR(tsv); | |
3119 | return SvPVX(tsv); | |
a0d0e21e LW |
3120 | } |
3121 | else { | |
3122 | STRLEN len; | |
46fc3d4c | 3123 | char *t; |
3124 | ||
3125 | if (tsv) { | |
3126 | sv_2mortal(tsv); | |
3127 | t = SvPVX(tsv); | |
3128 | len = SvCUR(tsv); | |
3129 | } | |
3130 | else { | |
96827780 MB |
3131 | t = tmpbuf; |
3132 | len = strlen(tmpbuf); | |
46fc3d4c | 3133 | } |
a0d0e21e | 3134 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3135 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3136 | t = "0"; | |
3137 | len = 1; | |
3138 | } | |
a0d0e21e LW |
3139 | #endif |
3140 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 3141 | *lp = len; |
a0d0e21e LW |
3142 | s = SvGROW(sv, len + 1); |
3143 | SvCUR_set(sv, len); | |
46fc3d4c | 3144 | (void)strcpy(s, t); |
6bf554b4 | 3145 | SvPOKp_on(sv); |
a0d0e21e LW |
3146 | return s; |
3147 | } | |
463ee0b2 LW |
3148 | } |
3149 | ||
645c22ef | 3150 | /* |
6050d10e JP |
3151 | =for apidoc sv_copypv |
3152 | ||
3153 | Copies a stringified representation of the source SV into the | |
3154 | destination SV. Automatically performs any necessary mg_get and | |
3155 | coercion of numeric values into strings. Guaranteed to preserve | |
3156 | UTF-8 flag even from overloaded objects. Similar in nature to | |
3157 | sv_2pv[_flags] but operates directly on an SV instead of just the | |
3158 | string. Mostly uses sv_2pv_flags to do its work, except when that | |
3159 | would lose the UTF-8'ness of the PV. | |
3160 | ||
3161 | =cut | |
3162 | */ | |
3163 | ||
3164 | void | |
3165 | Perl_sv_copypv(pTHX_ SV *dsv, register SV *ssv) | |
3166 | { | |
3167 | SV *tmpsv = sv_newmortal(); | |
3168 | ||
3169 | if ( SvTHINKFIRST(ssv) && SvROK(ssv) && SvAMAGIC(ssv) ) { | |
7adcf7db | 3170 | tmpsv = AMG_CALLun(ssv,string); |
03a2c403 | 3171 | if (SvTYPE(tmpsv) != SVt_RV || (SvRV(tmpsv) != SvRV(ssv))) { |
7adcf7db | 3172 | SvSetSV(dsv,tmpsv); |
03a2c403 JP |
3173 | return; |
3174 | } | |
6050d10e JP |
3175 | } |
3176 | { | |
3177 | STRLEN len; | |
3178 | char *s; | |
3179 | s = SvPV(ssv,len); | |
3180 | sv_setpvn(tmpsv,s,len); | |
3181 | if (SvUTF8(ssv)) | |
3182 | SvUTF8_on(tmpsv); | |
3183 | else | |
3184 | SvUTF8_off(tmpsv); | |
7adcf7db | 3185 | SvSetSV(dsv,tmpsv); |
6050d10e JP |
3186 | } |
3187 | } | |
3188 | ||
3189 | /* | |
645c22ef DM |
3190 | =for apidoc sv_2pvbyte_nolen |
3191 | ||
3192 | Return a pointer to the byte-encoded representation of the SV. | |
3193 | May cause the SV to be downgraded from UTF8 as a side-effect. | |
3194 | ||
3195 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3196 | ||
3197 | =cut | |
3198 | */ | |
3199 | ||
7340a771 GS |
3200 | char * |
3201 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3202 | { | |
560a288e GS |
3203 | STRLEN n_a; |
3204 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
3205 | } |
3206 | ||
645c22ef DM |
3207 | /* |
3208 | =for apidoc sv_2pvbyte | |
3209 | ||
3210 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
3211 | to its length. May cause the SV to be downgraded from UTF8 as a | |
3212 | side-effect. | |
3213 | ||
3214 | Usually accessed via the C<SvPVbyte> macro. | |
3215 | ||
3216 | =cut | |
3217 | */ | |
3218 | ||
7340a771 GS |
3219 | char * |
3220 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3221 | { | |
0875d2fe NIS |
3222 | sv_utf8_downgrade(sv,0); |
3223 | return SvPV(sv,*lp); | |
7340a771 GS |
3224 | } |
3225 | ||
645c22ef DM |
3226 | /* |
3227 | =for apidoc sv_2pvutf8_nolen | |
3228 | ||
3229 | Return a pointer to the UTF8-encoded representation of the SV. | |
3230 | May cause the SV to be upgraded to UTF8 as a side-effect. | |
3231 | ||
3232 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3233 | ||
3234 | =cut | |
3235 | */ | |
3236 | ||
7340a771 GS |
3237 | char * |
3238 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3239 | { | |
560a288e GS |
3240 | STRLEN n_a; |
3241 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
3242 | } |
3243 | ||
645c22ef DM |
3244 | /* |
3245 | =for apidoc sv_2pvutf8 | |
3246 | ||
3247 | Return a pointer to the UTF8-encoded representation of the SV, and set *lp | |
3248 | to its length. May cause the SV to be upgraded to UTF8 as a side-effect. | |
3249 | ||
3250 | Usually accessed via the C<SvPVutf8> macro. | |
3251 | ||
3252 | =cut | |
3253 | */ | |
3254 | ||
7340a771 GS |
3255 | char * |
3256 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3257 | { | |
560a288e | 3258 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3259 | return SvPV(sv,*lp); |
7340a771 | 3260 | } |
1c846c1f | 3261 | |
645c22ef DM |
3262 | /* |
3263 | =for apidoc sv_2bool | |
3264 | ||
3265 | This function is only called on magical items, and is only used by | |
8cf8f3d1 | 3266 | sv_true() or its macro equivalent. |
645c22ef DM |
3267 | |
3268 | =cut | |
3269 | */ | |
3270 | ||
463ee0b2 | 3271 | bool |
864dbfa3 | 3272 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3273 | { |
8990e307 | 3274 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3275 | mg_get(sv); |
3276 | ||
a0d0e21e LW |
3277 | if (!SvOK(sv)) |
3278 | return 0; | |
3279 | if (SvROK(sv)) { | |
a0d0e21e | 3280 | SV* tmpsv; |
1554e226 | 3281 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
9e3013b1 | 3282 | (!SvROK(tmpsv) || (SvRV(tmpsv) != SvRV(sv)))) |
9e7bc3e8 | 3283 | return SvTRUE(tmpsv); |
a0d0e21e LW |
3284 | return SvRV(sv) != 0; |
3285 | } | |
463ee0b2 | 3286 | if (SvPOKp(sv)) { |
11343788 MB |
3287 | register XPV* Xpvtmp; |
3288 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
3289 | (*Xpvtmp->xpv_pv > '0' || | |
3290 | Xpvtmp->xpv_cur > 1 || | |
3291 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3292 | return 1; |
3293 | else | |
3294 | return 0; | |
3295 | } | |
3296 | else { | |
3297 | if (SvIOKp(sv)) | |
3298 | return SvIVX(sv) != 0; | |
3299 | else { | |
3300 | if (SvNOKp(sv)) | |
3301 | return SvNVX(sv) != 0.0; | |
3302 | else | |
3303 | return FALSE; | |
3304 | } | |
3305 | } | |
79072805 LW |
3306 | } |
3307 | ||
c461cf8f JH |
3308 | /* |
3309 | =for apidoc sv_utf8_upgrade | |
3310 | ||
3311 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3312 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3313 | Always sets the SvUTF8 flag to avoid future validity checks even |
3314 | if all the bytes have hibit clear. | |
c461cf8f | 3315 | |
13a6c0e0 JH |
3316 | This is not as a general purpose byte encoding to Unicode interface: |
3317 | use the Encode extension for that. | |
3318 | ||
c461cf8f JH |
3319 | =cut |
3320 | */ | |
3321 | ||
4411f3b6 | 3322 | STRLEN |
560a288e GS |
3323 | Perl_sv_utf8_upgrade(pTHX_ register SV *sv) |
3324 | { | |
36f65ada | 3325 | return sv_utf8_upgrade_flags(sv, SV_GMAGIC); |
8d6d96c1 HS |
3326 | } |
3327 | ||
3328 | /* | |
3329 | =for apidoc sv_utf8_upgrade_flags | |
3330 | ||
3331 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3332 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3333 | Always sets the SvUTF8 flag to avoid future validity checks even |
3334 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3335 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3336 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3337 | ||
13a6c0e0 JH |
3338 | This is not as a general purpose byte encoding to Unicode interface: |
3339 | use the Encode extension for that. | |
3340 | ||
8d6d96c1 HS |
3341 | =cut |
3342 | */ | |
3343 | ||
3344 | STRLEN | |
3345 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3346 | { | |
db42d148 | 3347 | U8 *s, *t, *e; |
511c2ff0 | 3348 | int hibit = 0; |
560a288e | 3349 | |
4411f3b6 NIS |
3350 | if (!sv) |
3351 | return 0; | |
3352 | ||
e0e62c2a NIS |
3353 | if (!SvPOK(sv)) { |
3354 | STRLEN len = 0; | |
8d6d96c1 | 3355 | (void) sv_2pv_flags(sv,&len, flags); |
e0e62c2a NIS |
3356 | if (!SvPOK(sv)) |
3357 | return len; | |
3358 | } | |
4411f3b6 NIS |
3359 | |
3360 | if (SvUTF8(sv)) | |
3361 | return SvCUR(sv); | |
560a288e | 3362 | |
db42d148 NIS |
3363 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
3364 | sv_force_normal(sv); | |
3365 | } | |
3366 | ||
9f4817db | 3367 | if (PL_encoding) |
799ef3cb | 3368 | sv_recode_to_utf8(sv, PL_encoding); |
9f4817db | 3369 | else { /* Assume Latin-1/EBCDIC */ |
0a378802 JH |
3370 | /* This function could be much more efficient if we |
3371 | * had a FLAG in SVs to signal if there are any hibit | |
3372 | * chars in the PV. Given that there isn't such a flag | |
3373 | * make the loop as fast as possible. */ | |
3374 | s = (U8 *) SvPVX(sv); | |
3375 | e = (U8 *) SvEND(sv); | |
3376 | t = s; | |
3377 | while (t < e) { | |
3378 | U8 ch = *t++; | |
3379 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) | |
3380 | break; | |
3381 | } | |
3382 | if (hibit) { | |
3383 | STRLEN len; | |
ecdeb87c | 3384 | |
0a378802 JH |
3385 | len = SvCUR(sv) + 1; /* Plus the \0 */ |
3386 | SvPVX(sv) = (char*)bytes_to_utf8((U8*)s, &len); | |
3387 | SvCUR(sv) = len - 1; | |
3388 | if (SvLEN(sv) != 0) | |
3389 | Safefree(s); /* No longer using what was there before. */ | |
3390 | SvLEN(sv) = len; /* No longer know the real size. */ | |
3391 | } | |
9f4817db JH |
3392 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ |
3393 | SvUTF8_on(sv); | |
560a288e | 3394 | } |
4411f3b6 | 3395 | return SvCUR(sv); |
560a288e GS |
3396 | } |
3397 | ||
c461cf8f JH |
3398 | /* |
3399 | =for apidoc sv_utf8_downgrade | |
3400 | ||
3401 | Attempt to convert the PV of an SV from UTF8-encoded to byte encoding. | |
3402 | This may not be possible if the PV contains non-byte encoding characters; | |
3403 | if this is the case, either returns false or, if C<fail_ok> is not | |
3404 | true, croaks. | |
3405 | ||
13a6c0e0 JH |
3406 | This is not as a general purpose Unicode to byte encoding interface: |
3407 | use the Encode extension for that. | |
3408 | ||
c461cf8f JH |
3409 | =cut |
3410 | */ | |
3411 | ||
560a288e GS |
3412 | bool |
3413 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3414 | { | |
3415 | if (SvPOK(sv) && SvUTF8(sv)) { | |
fa301091 | 3416 | if (SvCUR(sv)) { |
03cfe0ae | 3417 | U8 *s; |
652088fc | 3418 | STRLEN len; |
fa301091 | 3419 | |
652088fc JH |
3420 | if (SvREADONLY(sv) && SvFAKE(sv)) |
3421 | sv_force_normal(sv); | |
03cfe0ae NIS |
3422 | s = (U8 *) SvPV(sv, len); |
3423 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3424 | if (fail_ok) |
3425 | return FALSE; | |
3426 | else { | |
3427 | if (PL_op) | |
3428 | Perl_croak(aTHX_ "Wide character in %s", | |
53e06cf0 | 3429 | OP_DESC(PL_op)); |
fa301091 JH |
3430 | else |
3431 | Perl_croak(aTHX_ "Wide character"); | |
3432 | } | |
4b3603a4 | 3433 | } |
fa301091 | 3434 | SvCUR(sv) = len; |
67e989fb | 3435 | } |
560a288e | 3436 | } |
ffebcc3e | 3437 | SvUTF8_off(sv); |
560a288e GS |
3438 | return TRUE; |
3439 | } | |
3440 | ||
c461cf8f JH |
3441 | /* |
3442 | =for apidoc sv_utf8_encode | |
3443 | ||
3444 | Convert the PV of an SV to UTF8-encoded, but then turn off the C<SvUTF8> | |
4411f3b6 NIS |
3445 | flag so that it looks like octets again. Used as a building block |
3446 | for encode_utf8 in Encode.xs | |
c461cf8f JH |
3447 | |
3448 | =cut | |
3449 | */ | |
3450 | ||
560a288e GS |
3451 | void |
3452 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3453 | { | |
4411f3b6 | 3454 | (void) sv_utf8_upgrade(sv); |
560a288e GS |
3455 | SvUTF8_off(sv); |
3456 | } | |
3457 | ||
4411f3b6 NIS |
3458 | /* |
3459 | =for apidoc sv_utf8_decode | |
3460 | ||
3461 | Convert the octets in the PV from UTF-8 to chars. Scan for validity and then | |
645c22ef | 3462 | turn off SvUTF8 if needed so that we see characters. Used as a building block |
4411f3b6 NIS |
3463 | for decode_utf8 in Encode.xs |
3464 | ||
3465 | =cut | |
3466 | */ | |
3467 | ||
560a288e GS |
3468 | bool |
3469 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3470 | { | |
3471 | if (SvPOK(sv)) { | |
63cd0674 NIS |
3472 | U8 *c; |
3473 | U8 *e; | |
9cbac4c7 | 3474 | |
645c22ef DM |
3475 | /* The octets may have got themselves encoded - get them back as |
3476 | * bytes | |
3477 | */ | |
3478 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3479 | return FALSE; |
3480 | ||
3481 | /* it is actually just a matter of turning the utf8 flag on, but | |
3482 | * we want to make sure everything inside is valid utf8 first. | |
3483 | */ | |
63cd0674 NIS |
3484 | c = (U8 *) SvPVX(sv); |
3485 | if (!is_utf8_string(c, SvCUR(sv)+1)) | |
67e989fb | 3486 | return FALSE; |
63cd0674 | 3487 | e = (U8 *) SvEND(sv); |
511c2ff0 | 3488 | while (c < e) { |
c4d5f83a NIS |
3489 | U8 ch = *c++; |
3490 | if (!UTF8_IS_INVARIANT(ch)) { | |
67e989fb JH |
3491 | SvUTF8_on(sv); |
3492 | break; | |
3493 | } | |
560a288e | 3494 | } |
560a288e GS |
3495 | } |
3496 | return TRUE; | |
3497 | } | |
3498 | ||
954c1994 GS |
3499 | /* |
3500 | =for apidoc sv_setsv | |
3501 | ||
645c22ef DM |
3502 | Copies the contents of the source SV C<ssv> into the destination SV |
3503 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3504 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3505 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3506 | content of the destination. | |
3507 | ||
3508 | You probably want to use one of the assortment of wrappers, such as | |
3509 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3510 | C<SvSetMagicSV_nosteal>. | |
3511 | ||
954c1994 GS |
3512 | |
3513 | =cut | |
3514 | */ | |
3515 | ||
8d6d96c1 HS |
3516 | /* sv_setsv() is aliased to Perl_sv_setsv_macro; this function provided |
3517 | for binary compatibility only | |
3518 | */ | |
79072805 | 3519 | void |
864dbfa3 | 3520 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) |
79072805 | 3521 | { |
8d6d96c1 HS |
3522 | sv_setsv_flags(dstr, sstr, SV_GMAGIC); |
3523 | } | |
3524 | ||
3525 | /* | |
3526 | =for apidoc sv_setsv_flags | |
3527 | ||
645c22ef DM |
3528 | Copies the contents of the source SV C<ssv> into the destination SV |
3529 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3530 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3531 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3532 | content of the destination. | |
3533 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
3534 | C<ssv> if appropriate, else not. C<sv_setsv> and C<sv_setsv_nomg> are | |
3535 | implemented in terms of this function. | |
3536 | ||
3537 | You probably want to use one of the assortment of wrappers, such as | |
3538 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3539 | C<SvSetMagicSV_nosteal>. | |
3540 | ||
3541 | This is the primary function for copying scalars, and most other | |
3542 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3543 | |
3544 | =cut | |
3545 | */ | |
3546 | ||
3547 | void | |
3548 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3549 | { | |
8990e307 LW |
3550 | register U32 sflags; |
3551 | register int dtype; | |
3552 | register int stype; | |
463ee0b2 | 3553 | |
79072805 LW |
3554 | if (sstr == dstr) |
3555 | return; | |
2213622d | 3556 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 3557 | if (!sstr) |
3280af22 | 3558 | sstr = &PL_sv_undef; |
8990e307 LW |
3559 | stype = SvTYPE(sstr); |
3560 | dtype = SvTYPE(dstr); | |
79072805 | 3561 | |
a0d0e21e | 3562 | SvAMAGIC_off(dstr); |
9e7bc3e8 | 3563 | |
463ee0b2 | 3564 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3565 | |
8990e307 | 3566 | switch (stype) { |
79072805 | 3567 | case SVt_NULL: |
aece5585 | 3568 | undef_sstr: |
20408e3c GS |
3569 | if (dtype != SVt_PVGV) { |
3570 | (void)SvOK_off(dstr); | |
3571 | return; | |
3572 | } | |
3573 | break; | |
463ee0b2 | 3574 | case SVt_IV: |
aece5585 GA |
3575 | if (SvIOK(sstr)) { |
3576 | switch (dtype) { | |
3577 | case SVt_NULL: | |
8990e307 | 3578 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3579 | break; |
3580 | case SVt_NV: | |
8990e307 | 3581 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3582 | break; |
3583 | case SVt_RV: | |
3584 | case SVt_PV: | |
a0d0e21e | 3585 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3586 | break; |
3587 | } | |
3588 | (void)SvIOK_only(dstr); | |
3589 | SvIVX(dstr) = SvIVX(sstr); | |
25da4f38 IZ |
3590 | if (SvIsUV(sstr)) |
3591 | SvIsUV_on(dstr); | |
27c9684d AP |
3592 | if (SvTAINTED(sstr)) |
3593 | SvTAINT(dstr); | |
aece5585 | 3594 | return; |
8990e307 | 3595 | } |
aece5585 GA |
3596 | goto undef_sstr; |
3597 | ||
463ee0b2 | 3598 | case SVt_NV: |
aece5585 GA |
3599 | if (SvNOK(sstr)) { |
3600 | switch (dtype) { | |
3601 | case SVt_NULL: | |
3602 | case SVt_IV: | |
8990e307 | 3603 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3604 | break; |
3605 | case SVt_RV: | |
3606 | case SVt_PV: | |
3607 | case SVt_PVIV: | |
a0d0e21e | 3608 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3609 | break; |
3610 | } | |
3611 | SvNVX(dstr) = SvNVX(sstr); | |
3612 | (void)SvNOK_only(dstr); | |
27c9684d AP |
3613 | if (SvTAINTED(sstr)) |
3614 | SvTAINT(dstr); | |
aece5585 | 3615 | return; |
8990e307 | 3616 | } |
aece5585 GA |
3617 | goto undef_sstr; |
3618 | ||
ed6116ce | 3619 | case SVt_RV: |
8990e307 | 3620 | if (dtype < SVt_RV) |
ed6116ce | 3621 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3622 | else if (dtype == SVt_PVGV && |
3623 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { | |
3624 | sstr = SvRV(sstr); | |
a5f75d66 | 3625 | if (sstr == dstr) { |
1d7c1841 GS |
3626 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3627 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3628 | { | |
a5f75d66 | 3629 | GvIMPORTED_on(dstr); |
1d7c1841 | 3630 | } |
a5f75d66 AD |
3631 | GvMULTI_on(dstr); |
3632 | return; | |
3633 | } | |
c07a80fd | 3634 | goto glob_assign; |
3635 | } | |
ed6116ce | 3636 | break; |
463ee0b2 | 3637 | case SVt_PV: |
fc36a67e | 3638 | case SVt_PVFM: |
8990e307 | 3639 | if (dtype < SVt_PV) |
463ee0b2 | 3640 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3641 | break; |
3642 | case SVt_PVIV: | |
8990e307 | 3643 | if (dtype < SVt_PVIV) |
463ee0b2 | 3644 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3645 | break; |
3646 | case SVt_PVNV: | |
8990e307 | 3647 | if (dtype < SVt_PVNV) |
463ee0b2 | 3648 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3649 | break; |
4633a7c4 LW |
3650 | case SVt_PVAV: |
3651 | case SVt_PVHV: | |
3652 | case SVt_PVCV: | |
4633a7c4 | 3653 | case SVt_PVIO: |
533c011a | 3654 | if (PL_op) |
cea2e8a9 | 3655 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
53e06cf0 | 3656 | OP_NAME(PL_op)); |
4633a7c4 | 3657 | else |
cea2e8a9 | 3658 | Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); |
4633a7c4 LW |
3659 | break; |
3660 | ||
79072805 | 3661 | case SVt_PVGV: |
8990e307 | 3662 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3663 | glob_assign: |
a5f75d66 | 3664 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
3665 | char *name = GvNAME(sstr); |
3666 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 3667 | sv_upgrade(dstr, SVt_PVGV); |
14befaf4 | 3668 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 3669 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
3670 | GvNAME(dstr) = savepvn(name, len); |
3671 | GvNAMELEN(dstr) = len; | |
3672 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3673 | } | |
7bac28a0 | 3674 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3675 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3676 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3677 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3678 | GvNAME(dstr)); |
5bd07a3d | 3679 | |
7fb37951 AMS |
3680 | #ifdef GV_UNIQUE_CHECK |
3681 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3682 | Perl_croak(aTHX_ PL_no_modify); |
3683 | } | |
3684 | #endif | |
3685 | ||
a0d0e21e | 3686 | (void)SvOK_off(dstr); |
a5f75d66 | 3687 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3688 | gp_free((GV*)dstr); |
79072805 | 3689 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3690 | if (SvTAINTED(sstr)) |
3691 | SvTAINT(dstr); | |
1d7c1841 GS |
3692 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3693 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3694 | { | |
a5f75d66 | 3695 | GvIMPORTED_on(dstr); |
1d7c1841 | 3696 | } |
a5f75d66 | 3697 | GvMULTI_on(dstr); |
79072805 LW |
3698 | return; |
3699 | } | |
3700 | /* FALL THROUGH */ | |
3701 | ||
3702 | default: | |
8d6d96c1 | 3703 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab CS |
3704 | mg_get(sstr); |
3705 | if (SvTYPE(sstr) != stype) { | |
3706 | stype = SvTYPE(sstr); | |
3707 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3708 | goto glob_assign; | |
3709 | } | |
3710 | } | |
ded42b9f | 3711 | if (stype == SVt_PVLV) |
6fc92669 | 3712 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3713 | else |
6fc92669 | 3714 | (void)SvUPGRADE(dstr, stype); |
79072805 LW |
3715 | } |
3716 | ||
8990e307 LW |
3717 | sflags = SvFLAGS(sstr); |
3718 | ||
3719 | if (sflags & SVf_ROK) { | |
3720 | if (dtype >= SVt_PV) { | |
3721 | if (dtype == SVt_PVGV) { | |
3722 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3723 | SV *dref = 0; | |
a5f75d66 | 3724 | int intro = GvINTRO(dstr); |
a0d0e21e | 3725 | |
7fb37951 AMS |
3726 | #ifdef GV_UNIQUE_CHECK |
3727 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3728 | Perl_croak(aTHX_ PL_no_modify); |
3729 | } | |
3730 | #endif | |
3731 | ||
a0d0e21e | 3732 | if (intro) { |
a5f75d66 | 3733 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3734 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3735 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3736 | } |
a5f75d66 | 3737 | GvMULTI_on(dstr); |
8990e307 LW |
3738 | switch (SvTYPE(sref)) { |
3739 | case SVt_PVAV: | |
a0d0e21e LW |
3740 | if (intro) |
3741 | SAVESPTR(GvAV(dstr)); | |
3742 | else | |
3743 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3744 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3745 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3746 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3747 | { | |
a5f75d66 | 3748 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3749 | } |
8990e307 LW |
3750 | break; |
3751 | case SVt_PVHV: | |
a0d0e21e LW |
3752 | if (intro) |
3753 | SAVESPTR(GvHV(dstr)); | |
3754 | else | |
3755 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3756 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3757 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3758 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3759 | { | |
a5f75d66 | 3760 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3761 | } |
8990e307 LW |
3762 | break; |
3763 | case SVt_PVCV: | |
8ebc5c01 | 3764 | if (intro) { |
3765 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3766 | SvREFCNT_dec(GvCV(dstr)); | |
3767 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3768 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3769 | PL_sub_generation++; |
8ebc5c01 | 3770 | } |
a0d0e21e | 3771 | SAVESPTR(GvCV(dstr)); |
8ebc5c01 | 3772 | } |
68dc0745 | 3773 | else |
3774 | dref = (SV*)GvCV(dstr); | |
3775 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3776 | CV* cv = GvCV(dstr); |
4633a7c4 | 3777 | if (cv) { |
68dc0745 | 3778 | if (!GvCVGEN((GV*)dstr) && |
3779 | (CvROOT(cv) || CvXSUB(cv))) | |
3780 | { | |
7bac28a0 | 3781 | /* ahem, death to those who redefine |
3782 | * active sort subs */ | |
3280af22 NIS |
3783 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
3784 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 3785 | Perl_croak(aTHX_ |
7bac28a0 | 3786 | "Can't redefine active sort subroutine %s", |
3787 | GvENAME((GV*)dstr)); | |
beab0874 JT |
3788 | /* Redefining a sub - warning is mandatory if |
3789 | it was a const and its value changed. */ | |
3790 | if (ckWARN(WARN_REDEFINE) | |
3791 | || (CvCONST(cv) | |
3792 | && (!CvCONST((CV*)sref) | |
3793 | || sv_cmp(cv_const_sv(cv), | |
3794 | cv_const_sv((CV*)sref))))) | |
3795 | { | |
9014280d | 3796 | Perl_warner(aTHX_ packWARN(WARN_REDEFINE), |
beab0874 JT |
3797 | CvCONST(cv) |
3798 | ? "Constant subroutine %s redefined" | |
47deb5e7 | 3799 | : "Subroutine %s redefined", |
beab0874 JT |
3800 | GvENAME((GV*)dstr)); |
3801 | } | |
9607fc9c | 3802 | } |
fb24441d RGS |
3803 | if (!intro) |
3804 | cv_ckproto(cv, (GV*)dstr, | |
3805 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 3806 | } |
a5f75d66 | 3807 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 3808 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 3809 | GvASSUMECV_on(dstr); |
3280af22 | 3810 | PL_sub_generation++; |
a5f75d66 | 3811 | } |
39bac7f7 | 3812 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
3813 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3814 | { | |
a5f75d66 | 3815 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 3816 | } |
8990e307 | 3817 | break; |
91bba347 LW |
3818 | case SVt_PVIO: |
3819 | if (intro) | |
3820 | SAVESPTR(GvIOp(dstr)); | |
3821 | else | |
3822 | dref = (SV*)GvIOp(dstr); | |
3823 | GvIOp(dstr) = (IO*)sref; | |
3824 | break; | |
f4d13ee9 JH |
3825 | case SVt_PVFM: |
3826 | if (intro) | |
3827 | SAVESPTR(GvFORM(dstr)); | |
3828 | else | |
3829 | dref = (SV*)GvFORM(dstr); | |
3830 | GvFORM(dstr) = (CV*)sref; | |
3831 | break; | |
8990e307 | 3832 | default: |
a0d0e21e LW |
3833 | if (intro) |
3834 | SAVESPTR(GvSV(dstr)); | |
3835 | else | |
3836 | dref = (SV*)GvSV(dstr); | |
8990e307 | 3837 | GvSV(dstr) = sref; |
39bac7f7 | 3838 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
3839 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3840 | { | |
a5f75d66 | 3841 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 3842 | } |
8990e307 LW |
3843 | break; |
3844 | } | |
3845 | if (dref) | |
3846 | SvREFCNT_dec(dref); | |
a0d0e21e LW |
3847 | if (intro) |
3848 | SAVEFREESV(sref); | |
27c9684d AP |
3849 | if (SvTAINTED(sstr)) |
3850 | SvTAINT(dstr); | |
8990e307 LW |
3851 | return; |
3852 | } | |
a0d0e21e | 3853 | if (SvPVX(dstr)) { |
760ac839 | 3854 | (void)SvOOK_off(dstr); /* backoff */ |
50483b2c JD |
3855 | if (SvLEN(dstr)) |
3856 | Safefree(SvPVX(dstr)); | |
a0d0e21e LW |
3857 | SvLEN(dstr)=SvCUR(dstr)=0; |
3858 | } | |
8990e307 | 3859 | } |
a0d0e21e | 3860 | (void)SvOK_off(dstr); |
8990e307 | 3861 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 3862 | SvROK_on(dstr); |
8990e307 | 3863 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3864 | SvNOKp_on(dstr); |
3865 | /* Only set the public OK flag if the source has public OK. */ | |
3866 | if (sflags & SVf_NOK) | |
3867 | SvFLAGS(dstr) |= SVf_NOK; | |
ed6116ce LW |
3868 | SvNVX(dstr) = SvNVX(sstr); |
3869 | } | |
8990e307 | 3870 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3871 | (void)SvIOKp_on(dstr); |
3872 | if (sflags & SVf_IOK) | |
3873 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3874 | if (sflags & SVf_IVisUV) |
25da4f38 | 3875 | SvIsUV_on(dstr); |
3332b3c1 | 3876 | SvIVX(dstr) = SvIVX(sstr); |
ed6116ce | 3877 | } |
a0d0e21e LW |
3878 | if (SvAMAGIC(sstr)) { |
3879 | SvAMAGIC_on(dstr); | |
3880 | } | |
ed6116ce | 3881 | } |
8990e307 | 3882 | else if (sflags & SVp_POK) { |
79072805 LW |
3883 | |
3884 | /* | |
3885 | * Check to see if we can just swipe the string. If so, it's a | |
3886 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
3887 | * It might even be a win on short strings if SvPVX(dstr) |
3888 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
3889 | */ |
3890 | ||
ff68c719 | 3891 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 3892 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
1c846c1f | 3893 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ |
4c8f17b9 | 3894 | SvLEN(sstr) && /* and really is a string */ |
645c22ef DM |
3895 | /* and won't be needed again, potentially */ |
3896 | !(PL_op && PL_op->op_type == OP_AASSIGN)) | |
a5f75d66 | 3897 | { |
adbc6bb1 | 3898 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
3899 | if (SvOOK(dstr)) { |
3900 | SvFLAGS(dstr) &= ~SVf_OOK; | |
3901 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
3902 | } | |
50483b2c | 3903 | else if (SvLEN(dstr)) |
a5f75d66 | 3904 | Safefree(SvPVX(dstr)); |
79072805 | 3905 | } |
a5f75d66 | 3906 | (void)SvPOK_only(dstr); |
463ee0b2 | 3907 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
3908 | SvLEN_set(dstr, SvLEN(sstr)); |
3909 | SvCUR_set(dstr, SvCUR(sstr)); | |
f4e86e0f | 3910 | |
79072805 | 3911 | SvTEMP_off(dstr); |
645c22ef | 3912 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ |
79072805 LW |
3913 | SvPV_set(sstr, Nullch); |
3914 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
3915 | SvCUR_set(sstr, 0); |
3916 | SvTEMP_off(sstr); | |
79072805 | 3917 | } |
645c22ef | 3918 | else { /* have to copy actual string */ |
8990e307 LW |
3919 | STRLEN len = SvCUR(sstr); |
3920 | ||
645c22ef | 3921 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ |
8990e307 LW |
3922 | Move(SvPVX(sstr),SvPVX(dstr),len,char); |
3923 | SvCUR_set(dstr, len); | |
3924 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 3925 | (void)SvPOK_only(dstr); |
79072805 | 3926 | } |
9aa983d2 | 3927 | if (sflags & SVf_UTF8) |
a7cb1f99 | 3928 | SvUTF8_on(dstr); |
79072805 | 3929 | /*SUPPRESS 560*/ |
8990e307 | 3930 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3931 | SvNOKp_on(dstr); |
3932 | if (sflags & SVf_NOK) | |
3933 | SvFLAGS(dstr) |= SVf_NOK; | |
463ee0b2 | 3934 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 3935 | } |
8990e307 | 3936 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3937 | (void)SvIOKp_on(dstr); |
3938 | if (sflags & SVf_IOK) | |
3939 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3940 | if (sflags & SVf_IVisUV) |
25da4f38 | 3941 | SvIsUV_on(dstr); |
463ee0b2 | 3942 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
3943 | } |
3944 | } | |
8990e307 | 3945 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
3946 | if (sflags & SVf_IOK) |
3947 | (void)SvIOK_only(dstr); | |
3948 | else { | |
9cbac4c7 DM |
3949 | (void)SvOK_off(dstr); |
3950 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
3951 | } |
3952 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 3953 | if (sflags & SVf_IVisUV) |
25da4f38 | 3954 | SvIsUV_on(dstr); |
3332b3c1 JH |
3955 | SvIVX(dstr) = SvIVX(sstr); |
3956 | if (sflags & SVp_NOK) { | |
3957 | if (sflags & SVf_NOK) | |
3958 | (void)SvNOK_on(dstr); | |
3959 | else | |
3960 | (void)SvNOKp_on(dstr); | |
3961 | SvNVX(dstr) = SvNVX(sstr); | |
3962 | } | |
3963 | } | |
3964 | else if (sflags & SVp_NOK) { | |
3965 | if (sflags & SVf_NOK) | |
3966 | (void)SvNOK_only(dstr); | |
3967 | else { | |
9cbac4c7 | 3968 | (void)SvOK_off(dstr); |
3332b3c1 JH |
3969 | SvNOKp_on(dstr); |
3970 | } | |
3971 | SvNVX(dstr) = SvNVX(sstr); | |
79072805 LW |
3972 | } |
3973 | else { | |
20408e3c | 3974 | if (dtype == SVt_PVGV) { |
e476b1b5 | 3975 | if (ckWARN(WARN_MISC)) |
9014280d | 3976 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Undefined value assigned to typeglob"); |
20408e3c GS |
3977 | } |
3978 | else | |
3979 | (void)SvOK_off(dstr); | |
a0d0e21e | 3980 | } |
27c9684d AP |
3981 | if (SvTAINTED(sstr)) |
3982 | SvTAINT(dstr); | |
79072805 LW |
3983 | } |
3984 | ||
954c1994 GS |
3985 | /* |
3986 | =for apidoc sv_setsv_mg | |
3987 | ||
3988 | Like C<sv_setsv>, but also handles 'set' magic. | |
3989 | ||
3990 | =cut | |
3991 | */ | |
3992 | ||
79072805 | 3993 | void |
864dbfa3 | 3994 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
3995 | { |
3996 | sv_setsv(dstr,sstr); | |
3997 | SvSETMAGIC(dstr); | |
3998 | } | |
3999 | ||
954c1994 GS |
4000 | /* |
4001 | =for apidoc sv_setpvn | |
4002 | ||
4003 | Copies a string into an SV. The C<len> parameter indicates the number of | |
4004 | bytes to be copied. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
4005 | ||
4006 | =cut | |
4007 | */ | |
4008 | ||
ef50df4b | 4009 | void |
864dbfa3 | 4010 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 4011 | { |
c6f8c383 | 4012 | register char *dptr; |
22c522df | 4013 | |
2213622d | 4014 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4015 | if (!ptr) { |
a0d0e21e | 4016 | (void)SvOK_off(sv); |
463ee0b2 LW |
4017 | return; |
4018 | } | |
22c522df JH |
4019 | else { |
4020 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
4021 | IV iv = len; | |
9c5ffd7c JH |
4022 | if (iv < 0) |
4023 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 4024 | } |
6fc92669 | 4025 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4026 | |
79072805 | 4027 | SvGROW(sv, len + 1); |
c6f8c383 GA |
4028 | dptr = SvPVX(sv); |
4029 | Move(ptr,dptr,len,char); | |
4030 | dptr[len] = '\0'; | |
79072805 | 4031 | SvCUR_set(sv, len); |
1aa99e6b | 4032 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4033 | SvTAINT(sv); |
79072805 LW |
4034 | } |
4035 | ||
954c1994 GS |
4036 | /* |
4037 | =for apidoc sv_setpvn_mg | |
4038 | ||
4039 | Like C<sv_setpvn>, but also handles 'set' magic. | |
4040 | ||
4041 | =cut | |
4042 | */ | |
4043 | ||
79072805 | 4044 | void |
864dbfa3 | 4045 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4046 | { |
4047 | sv_setpvn(sv,ptr,len); | |
4048 | SvSETMAGIC(sv); | |
4049 | } | |
4050 | ||
954c1994 GS |
4051 | /* |
4052 | =for apidoc sv_setpv | |
4053 | ||
4054 | Copies a string into an SV. The string must be null-terminated. Does not | |
4055 | handle 'set' magic. See C<sv_setpv_mg>. | |
4056 | ||
4057 | =cut | |
4058 | */ | |
4059 | ||
ef50df4b | 4060 | void |
864dbfa3 | 4061 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4062 | { |
4063 | register STRLEN len; | |
4064 | ||
2213622d | 4065 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4066 | if (!ptr) { |
a0d0e21e | 4067 | (void)SvOK_off(sv); |
463ee0b2 LW |
4068 | return; |
4069 | } | |
79072805 | 4070 | len = strlen(ptr); |
6fc92669 | 4071 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4072 | |
79072805 | 4073 | SvGROW(sv, len + 1); |
463ee0b2 | 4074 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4075 | SvCUR_set(sv, len); |
1aa99e6b | 4076 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4077 | SvTAINT(sv); |
4078 | } | |
4079 | ||
954c1994 GS |
4080 | /* |
4081 | =for apidoc sv_setpv_mg | |
4082 | ||
4083 | Like C<sv_setpv>, but also handles 'set' magic. | |
4084 | ||
4085 | =cut | |
4086 | */ | |
4087 | ||
463ee0b2 | 4088 | void |
864dbfa3 | 4089 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4090 | { |
4091 | sv_setpv(sv,ptr); | |
4092 | SvSETMAGIC(sv); | |
4093 | } | |
4094 | ||
954c1994 GS |
4095 | /* |
4096 | =for apidoc sv_usepvn | |
4097 | ||
4098 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4099 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4100 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4101 | string length, C<len>, must be supplied. This function will realloc the | |
4102 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4103 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4104 | See C<sv_usepvn_mg>. | |
4105 | ||
4106 | =cut | |
4107 | */ | |
4108 | ||
ef50df4b | 4109 | void |
864dbfa3 | 4110 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4111 | { |
2213622d | 4112 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 4113 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4114 | if (!ptr) { |
a0d0e21e | 4115 | (void)SvOK_off(sv); |
463ee0b2 LW |
4116 | return; |
4117 | } | |
a0ed51b3 | 4118 | (void)SvOOK_off(sv); |
50483b2c | 4119 | if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 LW |
4120 | Safefree(SvPVX(sv)); |
4121 | Renew(ptr, len+1, char); | |
4122 | SvPVX(sv) = ptr; | |
4123 | SvCUR_set(sv, len); | |
4124 | SvLEN_set(sv, len+1); | |
4125 | *SvEND(sv) = '\0'; | |
1aa99e6b | 4126 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4127 | SvTAINT(sv); |
79072805 LW |
4128 | } |
4129 | ||
954c1994 GS |
4130 | /* |
4131 | =for apidoc sv_usepvn_mg | |
4132 | ||
4133 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4134 | ||
4135 | =cut | |
4136 | */ | |
4137 | ||
ef50df4b | 4138 | void |
864dbfa3 | 4139 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4140 | { |
51c1089b | 4141 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4142 | SvSETMAGIC(sv); |
4143 | } | |
4144 | ||
645c22ef DM |
4145 | /* |
4146 | =for apidoc sv_force_normal_flags | |
4147 | ||
4148 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4149 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4150 | an xpvmg. The C<flags> parameter gets passed to C<sv_unref_flags()> | |
4151 | when unrefing. C<sv_force_normal> calls this function with flags set to 0. | |
4152 | ||
4153 | =cut | |
4154 | */ | |
4155 | ||
6fc92669 | 4156 | void |
840a7b70 | 4157 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4158 | { |
2213622d | 4159 | if (SvREADONLY(sv)) { |
1c846c1f NIS |
4160 | if (SvFAKE(sv)) { |
4161 | char *pvx = SvPVX(sv); | |
4162 | STRLEN len = SvCUR(sv); | |
4163 | U32 hash = SvUVX(sv); | |
4164 | SvGROW(sv, len + 1); | |
4165 | Move(pvx,SvPVX(sv),len,char); | |
4166 | *SvEND(sv) = '\0'; | |
4167 | SvFAKE_off(sv); | |
4168 | SvREADONLY_off(sv); | |
25716404 | 4169 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)len : len, hash); |
1c846c1f NIS |
4170 | } |
4171 | else if (PL_curcop != &PL_compiling) | |
cea2e8a9 | 4172 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4173 | } |
2213622d | 4174 | if (SvROK(sv)) |
840a7b70 | 4175 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4176 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4177 | sv_unglob(sv); | |
0f15f207 | 4178 | } |
1c846c1f | 4179 | |
645c22ef DM |
4180 | /* |
4181 | =for apidoc sv_force_normal | |
4182 | ||
4183 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4184 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4185 | an xpvmg. See also C<sv_force_normal_flags>. | |
4186 | ||
4187 | =cut | |
4188 | */ | |
4189 | ||
840a7b70 IZ |
4190 | void |
4191 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4192 | { | |
4193 | sv_force_normal_flags(sv, 0); | |
4194 | } | |
4195 | ||
954c1994 GS |
4196 | /* |
4197 | =for apidoc sv_chop | |
4198 | ||
1c846c1f | 4199 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4200 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4201 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4202 | string. Uses the "OOK hack". |
954c1994 GS |
4203 | |
4204 | =cut | |
4205 | */ | |
4206 | ||
79072805 | 4207 | void |
645c22ef | 4208 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
4209 | { |
4210 | register STRLEN delta; | |
4211 | ||
a0d0e21e | 4212 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4213 | return; |
2213622d | 4214 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4215 | if (SvTYPE(sv) < SVt_PVIV) |
4216 | sv_upgrade(sv,SVt_PVIV); | |
4217 | ||
4218 | if (!SvOOK(sv)) { | |
50483b2c JD |
4219 | if (!SvLEN(sv)) { /* make copy of shared string */ |
4220 | char *pvx = SvPVX(sv); | |
4221 | STRLEN len = SvCUR(sv); | |
4222 | SvGROW(sv, len + 1); | |
4223 | Move(pvx,SvPVX(sv),len,char); | |
4224 | *SvEND(sv) = '\0'; | |
4225 | } | |
463ee0b2 | 4226 | SvIVX(sv) = 0; |
79072805 LW |
4227 | SvFLAGS(sv) |= SVf_OOK; |
4228 | } | |
25da4f38 | 4229 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV); |
463ee0b2 | 4230 | delta = ptr - SvPVX(sv); |
79072805 LW |
4231 | SvLEN(sv) -= delta; |
4232 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
4233 | SvPVX(sv) += delta; |
4234 | SvIVX(sv) += delta; | |
79072805 LW |
4235 | } |
4236 | ||
954c1994 GS |
4237 | /* |
4238 | =for apidoc sv_catpvn | |
4239 | ||
4240 | Concatenates the string onto the end of the string which is in the SV. The | |
d5ce4a7c GA |
4241 | C<len> indicates number of bytes to copy. If the SV has the UTF8 |
4242 | status set, then the bytes appended should be valid UTF8. | |
4243 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. | |
954c1994 GS |
4244 | |
4245 | =cut | |
4246 | */ | |
4247 | ||
8d6d96c1 HS |
4248 | /* sv_catpvn() is aliased to Perl_sv_catpvn_macro; this function provided |
4249 | for binary compatibility only | |
4250 | */ | |
79072805 | 4251 | void |
8d6d96c1 | 4252 | Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen) |
79072805 | 4253 | { |
8d6d96c1 HS |
4254 | sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC); |
4255 | } | |
a0d0e21e | 4256 | |
8d6d96c1 HS |
4257 | /* |
4258 | =for apidoc sv_catpvn_flags | |
4259 | ||
4260 | Concatenates the string onto the end of the string which is in the SV. The | |
4261 | C<len> indicates number of bytes to copy. If the SV has the UTF8 | |
4262 | status set, then the bytes appended should be valid UTF8. | |
4263 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if | |
4264 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4265 | in terms of this function. | |
4266 | ||
4267 | =cut | |
4268 | */ | |
4269 | ||
4270 | void | |
4271 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4272 | { | |
4273 | STRLEN dlen; | |
4274 | char *dstr; | |
4275 | ||
4276 | dstr = SvPV_force_flags(dsv, dlen, flags); | |
4277 | SvGROW(dsv, dlen + slen + 1); | |
4278 | if (sstr == dstr) | |
4279 | sstr = SvPVX(dsv); | |
4280 | Move(sstr, SvPVX(dsv) + dlen, slen, char); | |
4281 | SvCUR(dsv) += slen; | |
4282 | *SvEND(dsv) = '\0'; | |
4283 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4284 | SvTAINT(dsv); | |
79072805 LW |
4285 | } |
4286 | ||
954c1994 GS |
4287 | /* |
4288 | =for apidoc sv_catpvn_mg | |
4289 | ||
4290 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4291 | ||
4292 | =cut | |
4293 | */ | |
4294 | ||
79072805 | 4295 | void |
864dbfa3 | 4296 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4297 | { |
4298 | sv_catpvn(sv,ptr,len); | |
4299 | SvSETMAGIC(sv); | |
4300 | } | |
4301 | ||
954c1994 GS |
4302 | /* |
4303 | =for apidoc sv_catsv | |
4304 | ||
13e8c8e3 JH |
4305 | Concatenates the string from SV C<ssv> onto the end of the string in |
4306 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4307 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4308 | |
13e8c8e3 | 4309 | =cut */ |
954c1994 | 4310 | |
8d6d96c1 HS |
4311 | /* sv_catsv() is aliased to Perl_sv_catsv_macro; this function provided |
4312 | for binary compatibility only | |
4313 | */ | |
4314 | void | |
4315 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) | |
4316 | { | |
4317 | sv_catsv_flags(dstr, sstr, SV_GMAGIC); | |
4318 | } | |
4319 | ||
4320 | /* | |
4321 | =for apidoc sv_catsv_flags | |
4322 | ||
4323 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4324 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4325 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4326 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4327 | ||
4328 | =cut */ | |
4329 | ||
ef50df4b | 4330 | void |
8d6d96c1 | 4331 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4332 | { |
13e8c8e3 JH |
4333 | char *spv; |
4334 | STRLEN slen; | |
46199a12 | 4335 | if (!ssv) |
79072805 | 4336 | return; |
46199a12 | 4337 | if ((spv = SvPV(ssv, slen))) { |
4fd84b44 AD |
4338 | /* sutf8 and dutf8 were type bool, but under USE_ITHREADS, |
4339 | gcc version 2.95.2 20000220 (Debian GNU/Linux) for | |
8cf8f3d1 NIS |
4340 | Linux xxx 2.2.17 on sparc64 with gcc -O2, we erroneously |
4341 | get dutf8 = 0x20000000, (i.e. SVf_UTF8) even though | |
4fd84b44 AD |
4342 | dsv->sv_flags doesn't have that bit set. |
4343 | Andy Dougherty 12 Oct 2001 | |
4344 | */ | |
4345 | I32 sutf8 = DO_UTF8(ssv); | |
4346 | I32 dutf8; | |
13e8c8e3 | 4347 | |
8d6d96c1 HS |
4348 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4349 | mg_get(dsv); | |
4350 | dutf8 = DO_UTF8(dsv); | |
4351 | ||
4352 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4353 | if (dutf8) { |
46199a12 | 4354 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4355 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4356 | |
46199a12 | 4357 | sv_utf8_upgrade(csv); |
8d6d96c1 | 4358 | spv = SvPV(csv, slen); |
13e8c8e3 | 4359 | } |
8d6d96c1 HS |
4360 | else |
4361 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4362 | } |
8d6d96c1 | 4363 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4364 | } |
79072805 LW |
4365 | } |
4366 | ||
954c1994 GS |
4367 | /* |
4368 | =for apidoc sv_catsv_mg | |
4369 | ||
4370 | Like C<sv_catsv>, but also handles 'set' magic. | |
4371 | ||
4372 | =cut | |
4373 | */ | |
4374 | ||
79072805 | 4375 | void |
46199a12 | 4376 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4377 | { |
46199a12 JH |
4378 | sv_catsv(dsv,ssv); |
4379 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4380 | } |
4381 | ||
954c1994 GS |
4382 | /* |
4383 | =for apidoc sv_catpv | |
4384 | ||
4385 | Concatenates the string onto the end of the string which is in the SV. | |
d5ce4a7c GA |
4386 | If the SV has the UTF8 status set, then the bytes appended should be |
4387 | valid UTF8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4388 | |
d5ce4a7c | 4389 | =cut */ |
954c1994 | 4390 | |
ef50df4b | 4391 | void |
0c981600 | 4392 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4393 | { |
4394 | register STRLEN len; | |
463ee0b2 | 4395 | STRLEN tlen; |
748a9306 | 4396 | char *junk; |
79072805 | 4397 | |
0c981600 | 4398 | if (!ptr) |
79072805 | 4399 | return; |
748a9306 | 4400 | junk = SvPV_force(sv, tlen); |
0c981600 | 4401 | len = strlen(ptr); |
463ee0b2 | 4402 | SvGROW(sv, tlen + len + 1); |
0c981600 JH |
4403 | if (ptr == junk) |
4404 | ptr = SvPVX(sv); | |
4405 | Move(ptr,SvPVX(sv)+tlen,len+1,char); | |
79072805 | 4406 | SvCUR(sv) += len; |
d41ff1b8 | 4407 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4408 | SvTAINT(sv); |
79072805 LW |
4409 | } |
4410 | ||
954c1994 GS |
4411 | /* |
4412 | =for apidoc sv_catpv_mg | |
4413 | ||
4414 | Like C<sv_catpv>, but also handles 'set' magic. | |
4415 | ||
4416 | =cut | |
4417 | */ | |
4418 | ||
ef50df4b | 4419 | void |
0c981600 | 4420 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4421 | { |
0c981600 | 4422 | sv_catpv(sv,ptr); |
ef50df4b GS |
4423 | SvSETMAGIC(sv); |
4424 | } | |
4425 | ||
645c22ef DM |
4426 | /* |
4427 | =for apidoc newSV | |
4428 | ||
4429 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4430 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4431 | macro. | |
4432 | ||
4433 | =cut | |
4434 | */ | |
4435 | ||
79072805 | 4436 | SV * |
864dbfa3 | 4437 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4438 | { |
4439 | register SV *sv; | |
1c846c1f | 4440 | |
4561caa4 | 4441 | new_SV(sv); |
79072805 LW |
4442 | if (len) { |
4443 | sv_upgrade(sv, SVt_PV); | |
4444 | SvGROW(sv, len + 1); | |
4445 | } | |
4446 | return sv; | |
4447 | } | |
954c1994 | 4448 | /* |
92110913 | 4449 | =for apidoc sv_magicext |
954c1994 | 4450 | |
68795e93 | 4451 | Adds magic to an SV, upgrading it if necessary. Applies the |
92110913 NIS |
4452 | supplied vtable and returns pointer to the magic added. |
4453 | ||
4454 | Note that sv_magicext will allow things that sv_magic will not. | |
68795e93 | 4455 | In particular you can add magic to SvREADONLY SVs and and more than |
92110913 | 4456 | one instance of the same 'how' |
645c22ef | 4457 | |
92110913 | 4458 | I C<namelen> is greater then zero then a savepvn() I<copy> of C<name> is stored, |
68795e93 NIS |
4459 | if C<namelen> is zero then C<name> is stored as-is and - as another special |
4460 | case - if C<(name && namelen == HEf_SVKEY)> then C<name> is assumed to contain | |
92110913 NIS |
4461 | an C<SV*> and has its REFCNT incremented |
4462 | ||
4463 | (This is now used as a subroutine by sv_magic.) | |
954c1994 GS |
4464 | |
4465 | =cut | |
4466 | */ | |
92110913 NIS |
4467 | MAGIC * |
4468 | Perl_sv_magicext(pTHX_ SV* sv, SV* obj, int how, MGVTBL *vtable, | |
4469 | const char* name, I32 namlen) | |
79072805 LW |
4470 | { |
4471 | MAGIC* mg; | |
68795e93 | 4472 | |
92110913 NIS |
4473 | if (SvTYPE(sv) < SVt_PVMG) { |
4474 | (void)SvUPGRADE(sv, SVt_PVMG); | |
463ee0b2 | 4475 | } |
79072805 LW |
4476 | Newz(702,mg, 1, MAGIC); |
4477 | mg->mg_moremagic = SvMAGIC(sv); | |
79072805 | 4478 | SvMAGIC(sv) = mg; |
75f9d97a | 4479 | |
18808301 | 4480 | /* Some magic sontains a reference loop, where the sv and object refer to |
bb03859b RS |
4481 | each other. To prevent a reference loop that would prevent such |
4482 | objects being freed, we look for such loops and if we find one we | |
4483 | avoid incrementing the object refcount. */ | |
14befaf4 DM |
4484 | if (!obj || obj == sv || |
4485 | how == PERL_MAGIC_arylen || | |
4486 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
4487 | (SvTYPE(obj) == SVt_PVGV && |
4488 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4489 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
4490 | GvFORM(obj) == (CV*)sv))) | |
4491 | { | |
8990e307 | 4492 | mg->mg_obj = obj; |
75f9d97a | 4493 | } |
85e6fe83 | 4494 | else { |
8990e307 | 4495 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4496 | mg->mg_flags |= MGf_REFCOUNTED; |
4497 | } | |
79072805 | 4498 | mg->mg_type = how; |
565764a8 | 4499 | mg->mg_len = namlen; |
9cbac4c7 | 4500 | if (name) { |
92110913 | 4501 | if (namlen > 0) |
1edc1566 | 4502 | mg->mg_ptr = savepvn(name, namlen); |
c6ee37c5 | 4503 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4504 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
68795e93 | 4505 | else |
92110913 | 4506 | mg->mg_ptr = (char *) name; |
9cbac4c7 | 4507 | } |
92110913 | 4508 | mg->mg_virtual = vtable; |
68795e93 | 4509 | |
92110913 NIS |
4510 | mg_magical(sv); |
4511 | if (SvGMAGICAL(sv)) | |
4512 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
4513 | return mg; | |
4514 | } | |
4515 | ||
4516 | /* | |
4517 | =for apidoc sv_magic | |
1c846c1f | 4518 | |
92110913 NIS |
4519 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4520 | then adds a new magic item of type C<how> to the head of the magic list. | |
4521 | ||
4522 | =cut | |
4523 | */ | |
4524 | ||
4525 | void | |
4526 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) | |
68795e93 | 4527 | { |
92110913 NIS |
4528 | MAGIC* mg; |
4529 | MGVTBL *vtable = 0; | |
4530 | ||
4531 | if (SvREADONLY(sv)) { | |
4532 | if (PL_curcop != &PL_compiling | |
4533 | && how != PERL_MAGIC_regex_global | |
4534 | && how != PERL_MAGIC_bm | |
4535 | && how != PERL_MAGIC_fm | |
4536 | && how != PERL_MAGIC_sv | |
4537 | ) | |
4538 | { | |
4539 | Perl_croak(aTHX_ PL_no_modify); | |
4540 | } | |
4541 | } | |
4542 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { | |
4543 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { | |
68795e93 NIS |
4544 | /* sv_magic() refuses to add a magic of the same 'how' as an |
4545 | existing one | |
92110913 NIS |
4546 | */ |
4547 | if (how == PERL_MAGIC_taint) | |
4548 | mg->mg_len |= 1; | |
4549 | return; | |
4550 | } | |
4551 | } | |
68795e93 | 4552 | |
79072805 | 4553 | switch (how) { |
14befaf4 | 4554 | case PERL_MAGIC_sv: |
92110913 | 4555 | vtable = &PL_vtbl_sv; |
79072805 | 4556 | break; |
14befaf4 | 4557 | case PERL_MAGIC_overload: |
92110913 | 4558 | vtable = &PL_vtbl_amagic; |
a0d0e21e | 4559 | break; |
14befaf4 | 4560 | case PERL_MAGIC_overload_elem: |
92110913 | 4561 | vtable = &PL_vtbl_amagicelem; |
a0d0e21e | 4562 | break; |
14befaf4 | 4563 | case PERL_MAGIC_overload_table: |
92110913 | 4564 | vtable = &PL_vtbl_ovrld; |
a0d0e21e | 4565 | break; |
14befaf4 | 4566 | case PERL_MAGIC_bm: |
92110913 | 4567 | vtable = &PL_vtbl_bm; |
79072805 | 4568 | break; |
14befaf4 | 4569 | case PERL_MAGIC_regdata: |
92110913 | 4570 | vtable = &PL_vtbl_regdata; |
6cef1e77 | 4571 | break; |
14befaf4 | 4572 | case PERL_MAGIC_regdatum: |
92110913 | 4573 | vtable = &PL_vtbl_regdatum; |
6cef1e77 | 4574 | break; |
14befaf4 | 4575 | case PERL_MAGIC_env: |
92110913 | 4576 | vtable = &PL_vtbl_env; |
79072805 | 4577 | break; |
14befaf4 | 4578 | case PERL_MAGIC_fm: |
92110913 | 4579 | vtable = &PL_vtbl_fm; |
55497cff | 4580 | break; |
14befaf4 | 4581 | case PERL_MAGIC_envelem: |
92110913 | 4582 | vtable = &PL_vtbl_envelem; |
79072805 | 4583 | break; |
14befaf4 | 4584 | case PERL_MAGIC_regex_global: |
92110913 | 4585 | vtable = &PL_vtbl_mglob; |
93a17b20 | 4586 | break; |
14befaf4 | 4587 | case PERL_MAGIC_isa: |
92110913 | 4588 | vtable = &PL_vtbl_isa; |
463ee0b2 | 4589 | break; |
14befaf4 | 4590 | case PERL_MAGIC_isaelem: |
92110913 | 4591 | vtable = &PL_vtbl_isaelem; |
463ee0b2 | 4592 | break; |
14befaf4 | 4593 | case PERL_MAGIC_nkeys: |
92110913 | 4594 | vtable = &PL_vtbl_nkeys; |
16660edb | 4595 | break; |
14befaf4 | 4596 | case PERL_MAGIC_dbfile: |
92110913 | 4597 | vtable = 0; |
93a17b20 | 4598 | break; |
14befaf4 | 4599 | case PERL_MAGIC_dbline: |
92110913 | 4600 | vtable = &PL_vtbl_dbline; |
79072805 | 4601 | break; |
4d1ff10f | 4602 | #ifdef USE_5005THREADS |
14befaf4 | 4603 | case PERL_MAGIC_mutex: |
92110913 | 4604 | vtable = &PL_vtbl_mutex; |
f93b4edd | 4605 | break; |
4d1ff10f | 4606 | #endif /* USE_5005THREADS */ |
36477c24 | 4607 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 4608 | case PERL_MAGIC_collxfrm: |
92110913 | 4609 | vtable = &PL_vtbl_collxfrm; |
bbce6d69 | 4610 | break; |
36477c24 | 4611 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 4612 | case PERL_MAGIC_tied: |
92110913 | 4613 | vtable = &PL_vtbl_pack; |
463ee0b2 | 4614 | break; |
14befaf4 DM |
4615 | case PERL_MAGIC_tiedelem: |
4616 | case PERL_MAGIC_tiedscalar: | |
92110913 | 4617 | vtable = &PL_vtbl_packelem; |
463ee0b2 | 4618 | break; |
14befaf4 | 4619 | case PERL_MAGIC_qr: |
92110913 | 4620 | vtable = &PL_vtbl_regexp; |
c277df42 | 4621 | break; |
14befaf4 | 4622 | case PERL_MAGIC_sig: |
92110913 | 4623 | vtable = &PL_vtbl_sig; |
79072805 | 4624 | break; |
14befaf4 | 4625 | case PERL_MAGIC_sigelem: |
92110913 | 4626 | vtable = &PL_vtbl_sigelem; |
79072805 | 4627 | break; |
14befaf4 | 4628 | case PERL_MAGIC_taint: |
92110913 | 4629 | vtable = &PL_vtbl_taint; |
463ee0b2 | 4630 | break; |
14befaf4 | 4631 | case PERL_MAGIC_uvar: |
92110913 | 4632 | vtable = &PL_vtbl_uvar; |
79072805 | 4633 | break; |
14befaf4 | 4634 | case PERL_MAGIC_vec: |
92110913 | 4635 | vtable = &PL_vtbl_vec; |
79072805 | 4636 | break; |
14befaf4 | 4637 | case PERL_MAGIC_substr: |
92110913 | 4638 | vtable = &PL_vtbl_substr; |
79072805 | 4639 | break; |
14befaf4 | 4640 | case PERL_MAGIC_defelem: |
92110913 | 4641 | vtable = &PL_vtbl_defelem; |
5f05dabc | 4642 | break; |
14befaf4 | 4643 | case PERL_MAGIC_glob: |
92110913 | 4644 | vtable = &PL_vtbl_glob; |
79072805 | 4645 | break; |
14befaf4 | 4646 | case PERL_MAGIC_arylen: |
92110913 | 4647 | vtable = &PL_vtbl_arylen; |
79072805 | 4648 | break; |
14befaf4 | 4649 | case PERL_MAGIC_pos: |
92110913 | 4650 | vtable = &PL_vtbl_pos; |
a0d0e21e | 4651 | break; |
14befaf4 | 4652 | case PERL_MAGIC_backref: |
92110913 | 4653 | vtable = &PL_vtbl_backref; |
810b8aa5 | 4654 | break; |
14befaf4 DM |
4655 | case PERL_MAGIC_ext: |
4656 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
4657 | /* Useful for attaching extension internal data to perl vars. */ |
4658 | /* Note that multiple extensions may clash if magical scalars */ | |
4659 | /* etc holding private data from one are passed to another. */ | |
a0d0e21e | 4660 | break; |
79072805 | 4661 | default: |
14befaf4 | 4662 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 4663 | } |
68795e93 | 4664 | |
92110913 NIS |
4665 | /* Rest of work is done else where */ |
4666 | mg = sv_magicext(sv,obj,how,vtable,name,namlen); | |
68795e93 | 4667 | |
92110913 NIS |
4668 | switch (how) { |
4669 | case PERL_MAGIC_taint: | |
4670 | mg->mg_len = 1; | |
4671 | break; | |
4672 | case PERL_MAGIC_ext: | |
4673 | case PERL_MAGIC_dbfile: | |
4674 | SvRMAGICAL_on(sv); | |
4675 | break; | |
4676 | } | |
463ee0b2 LW |
4677 | } |
4678 | ||
c461cf8f JH |
4679 | /* |
4680 | =for apidoc sv_unmagic | |
4681 | ||
645c22ef | 4682 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
4683 | |
4684 | =cut | |
4685 | */ | |
4686 | ||
463ee0b2 | 4687 | int |
864dbfa3 | 4688 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
4689 | { |
4690 | MAGIC* mg; | |
4691 | MAGIC** mgp; | |
91bba347 | 4692 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
4693 | return 0; |
4694 | mgp = &SvMAGIC(sv); | |
4695 | for (mg = *mgp; mg; mg = *mgp) { | |
4696 | if (mg->mg_type == type) { | |
4697 | MGVTBL* vtbl = mg->mg_virtual; | |
4698 | *mgp = mg->mg_moremagic; | |
1d7c1841 | 4699 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 4700 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 4701 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
92110913 | 4702 | if (mg->mg_len > 0) |
1edc1566 | 4703 | Safefree(mg->mg_ptr); |
565764a8 | 4704 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 4705 | SvREFCNT_dec((SV*)mg->mg_ptr); |
9cbac4c7 | 4706 | } |
a0d0e21e LW |
4707 | if (mg->mg_flags & MGf_REFCOUNTED) |
4708 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
4709 | Safefree(mg); |
4710 | } | |
4711 | else | |
4712 | mgp = &mg->mg_moremagic; | |
79072805 | 4713 | } |
91bba347 | 4714 | if (!SvMAGIC(sv)) { |
463ee0b2 | 4715 | SvMAGICAL_off(sv); |
06759ea0 | 4716 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
4717 | } |
4718 | ||
4719 | return 0; | |
79072805 LW |
4720 | } |
4721 | ||
c461cf8f JH |
4722 | /* |
4723 | =for apidoc sv_rvweaken | |
4724 | ||
645c22ef DM |
4725 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
4726 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
4727 | push a back-reference to this RV onto the array of backreferences | |
4728 | associated with that magic. | |
c461cf8f JH |
4729 | |
4730 | =cut | |
4731 | */ | |
4732 | ||
810b8aa5 | 4733 | SV * |
864dbfa3 | 4734 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
4735 | { |
4736 | SV *tsv; | |
4737 | if (!SvOK(sv)) /* let undefs pass */ | |
4738 | return sv; | |
4739 | if (!SvROK(sv)) | |
cea2e8a9 | 4740 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 4741 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 4742 | if (ckWARN(WARN_MISC)) |
9014280d | 4743 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Reference is already weak"); |
810b8aa5 GS |
4744 | return sv; |
4745 | } | |
4746 | tsv = SvRV(sv); | |
4747 | sv_add_backref(tsv, sv); | |
4748 | SvWEAKREF_on(sv); | |
1c846c1f | 4749 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
4750 | return sv; |
4751 | } | |
4752 | ||
645c22ef DM |
4753 | /* Give tsv backref magic if it hasn't already got it, then push a |
4754 | * back-reference to sv onto the array associated with the backref magic. | |
4755 | */ | |
4756 | ||
810b8aa5 | 4757 | STATIC void |
cea2e8a9 | 4758 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
4759 | { |
4760 | AV *av; | |
4761 | MAGIC *mg; | |
14befaf4 | 4762 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
4763 | av = (AV*)mg->mg_obj; |
4764 | else { | |
4765 | av = newAV(); | |
14befaf4 | 4766 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
810b8aa5 GS |
4767 | SvREFCNT_dec(av); /* for sv_magic */ |
4768 | } | |
4769 | av_push(av,sv); | |
4770 | } | |
4771 | ||
645c22ef DM |
4772 | /* delete a back-reference to ourselves from the backref magic associated |
4773 | * with the SV we point to. | |
4774 | */ | |
4775 | ||
1c846c1f | 4776 | STATIC void |
cea2e8a9 | 4777 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
4778 | { |
4779 | AV *av; | |
4780 | SV **svp; | |
4781 | I32 i; | |
4782 | SV *tsv = SvRV(sv); | |
c04a4dfe | 4783 | MAGIC *mg = NULL; |
14befaf4 | 4784 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 4785 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
4786 | av = (AV *)mg->mg_obj; |
4787 | svp = AvARRAY(av); | |
4788 | i = AvFILLp(av); | |
4789 | while (i >= 0) { | |
4790 | if (svp[i] == sv) { | |
4791 | svp[i] = &PL_sv_undef; /* XXX */ | |
4792 | } | |
4793 | i--; | |
4794 | } | |
4795 | } | |
4796 | ||
954c1994 GS |
4797 | /* |
4798 | =for apidoc sv_insert | |
4799 | ||
4800 | Inserts a string at the specified offset/length within the SV. Similar to | |
4801 | the Perl substr() function. | |
4802 | ||
4803 | =cut | |
4804 | */ | |
4805 | ||
79072805 | 4806 | void |
864dbfa3 | 4807 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
4808 | { |
4809 | register char *big; | |
4810 | register char *mid; | |
4811 | register char *midend; | |
4812 | register char *bigend; | |
4813 | register I32 i; | |
6ff81951 | 4814 | STRLEN curlen; |
1c846c1f | 4815 | |
79072805 | 4816 | |
8990e307 | 4817 | if (!bigstr) |
cea2e8a9 | 4818 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 4819 | SvPV_force(bigstr, curlen); |
60fa28ff | 4820 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
4821 | if (offset + len > curlen) { |
4822 | SvGROW(bigstr, offset+len+1); | |
4823 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
4824 | SvCUR_set(bigstr, offset+len); | |
4825 | } | |
79072805 | 4826 | |
69b47968 | 4827 | SvTAINT(bigstr); |
79072805 LW |
4828 | i = littlelen - len; |
4829 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 4830 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
4831 | mid = big + offset + len; |
4832 | midend = bigend = big + SvCUR(bigstr); | |
4833 | bigend += i; | |
4834 | *bigend = '\0'; | |
4835 | while (midend > mid) /* shove everything down */ | |
4836 | *--bigend = *--midend; | |
4837 | Move(little,big+offset,littlelen,char); | |
4838 | SvCUR(bigstr) += i; | |
4839 | SvSETMAGIC(bigstr); | |
4840 | return; | |
4841 | } | |
4842 | else if (i == 0) { | |
463ee0b2 | 4843 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
4844 | SvSETMAGIC(bigstr); |
4845 | return; | |
4846 | } | |
4847 | ||
463ee0b2 | 4848 | big = SvPVX(bigstr); |
79072805 LW |
4849 | mid = big + offset; |
4850 | midend = mid + len; | |
4851 | bigend = big + SvCUR(bigstr); | |
4852 | ||
4853 | if (midend > bigend) | |
cea2e8a9 | 4854 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
4855 | |
4856 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
4857 | if (littlelen) { | |
4858 | Move(little, mid, littlelen,char); | |
4859 | mid += littlelen; | |
4860 | } | |
4861 | i = bigend - midend; | |
4862 | if (i > 0) { | |
4863 | Move(midend, mid, i,char); | |
4864 | mid += i; | |
4865 | } | |
4866 | *mid = '\0'; | |
4867 | SvCUR_set(bigstr, mid - big); | |
4868 | } | |
4869 | /*SUPPRESS 560*/ | |
155aba94 | 4870 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
4871 | midend -= littlelen; |
4872 | mid = midend; | |
4873 | sv_chop(bigstr,midend-i); | |
4874 | big += i; | |
4875 | while (i--) | |
4876 | *--midend = *--big; | |
4877 | if (littlelen) | |
4878 | Move(little, mid, littlelen,char); | |
4879 | } | |
4880 | else if (littlelen) { | |
4881 | midend -= littlelen; | |
4882 | sv_chop(bigstr,midend); | |
4883 | Move(little,midend,littlelen,char); | |
4884 | } | |
4885 | else { | |
4886 | sv_chop(bigstr,midend); | |
4887 | } | |
4888 | SvSETMAGIC(bigstr); | |
4889 | } | |
4890 | ||
c461cf8f JH |
4891 | /* |
4892 | =for apidoc sv_replace | |
4893 | ||
4894 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
4895 | The target SV physically takes over ownership of the body of the source SV |
4896 | and inherits its flags; however, the target keeps any magic it owns, | |
4897 | and any magic in the source is discarded. | |
ff276b08 | 4898 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 4899 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
4900 | |
4901 | =cut | |
4902 | */ | |
79072805 LW |
4903 | |
4904 | void | |
864dbfa3 | 4905 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 LW |
4906 | { |
4907 | U32 refcnt = SvREFCNT(sv); | |
2213622d | 4908 | SV_CHECK_THINKFIRST(sv); |
0453d815 | 4909 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 4910 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Reference miscount in sv_replace()"); |
93a17b20 | 4911 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
4912 | if (SvMAGICAL(nsv)) |
4913 | mg_free(nsv); | |
4914 | else | |
4915 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 4916 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 4917 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
4918 | SvMAGICAL_off(sv); |
4919 | SvMAGIC(sv) = 0; | |
4920 | } | |
79072805 LW |
4921 | SvREFCNT(sv) = 0; |
4922 | sv_clear(sv); | |
477f5d66 | 4923 | assert(!SvREFCNT(sv)); |
79072805 LW |
4924 | StructCopy(nsv,sv,SV); |
4925 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 4926 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
463ee0b2 | 4927 | del_SV(nsv); |
79072805 LW |
4928 | } |
4929 | ||
c461cf8f JH |
4930 | /* |
4931 | =for apidoc sv_clear | |
4932 | ||
645c22ef DM |
4933 | Clear an SV: call any destructors, free up any memory used by the body, |
4934 | and free the body itself. The SV's head is I<not> freed, although | |
4935 | its type is set to all 1's so that it won't inadvertently be assumed | |
4936 | to be live during global destruction etc. | |
4937 | This function should only be called when REFCNT is zero. Most of the time | |
4938 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
4939 | instead. | |
c461cf8f JH |
4940 | |
4941 | =cut | |
4942 | */ | |
4943 | ||
79072805 | 4944 | void |
864dbfa3 | 4945 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 4946 | { |
ec12f114 | 4947 | HV* stash; |
79072805 LW |
4948 | assert(sv); |
4949 | assert(SvREFCNT(sv) == 0); | |
4950 | ||
ed6116ce | 4951 | if (SvOBJECT(sv)) { |
3280af22 | 4952 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 4953 | dSP; |
32251b26 | 4954 | CV* destructor; |
837485b6 | 4955 | SV tmpref; |
a0d0e21e | 4956 | |
837485b6 GS |
4957 | Zero(&tmpref, 1, SV); |
4958 | sv_upgrade(&tmpref, SVt_RV); | |
4959 | SvROK_on(&tmpref); | |
4960 | SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ | |
4961 | SvREFCNT(&tmpref) = 1; | |
8ebc5c01 | 4962 | |
d460ef45 | 4963 | do { |
4e8e7886 | 4964 | stash = SvSTASH(sv); |
32251b26 | 4965 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 GS |
4966 | if (destructor) { |
4967 | ENTER; | |
e788e7d3 | 4968 | PUSHSTACKi(PERLSI_DESTROY); |
837485b6 | 4969 | SvRV(&tmpref) = SvREFCNT_inc(sv); |
4e8e7886 GS |
4970 | EXTEND(SP, 2); |
4971 | PUSHMARK(SP); | |
837485b6 | 4972 | PUSHs(&tmpref); |
4e8e7886 | 4973 | PUTBACK; |
32251b26 | 4974 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR); |
4e8e7886 | 4975 | SvREFCNT(sv)--; |
d3acc0f7 | 4976 | POPSTACK; |
3095d977 | 4977 | SPAGAIN; |
4e8e7886 GS |
4978 | LEAVE; |
4979 | } | |
4980 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 4981 | |
837485b6 | 4982 | del_XRV(SvANY(&tmpref)); |
6f44e0a4 JP |
4983 | |
4984 | if (SvREFCNT(sv)) { | |
4985 | if (PL_in_clean_objs) | |
cea2e8a9 | 4986 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
6f44e0a4 JP |
4987 | HvNAME(stash)); |
4988 | /* DESTROY gave object new lease on life */ | |
4989 | return; | |
4990 | } | |
a0d0e21e | 4991 | } |
4e8e7886 | 4992 | |
a0d0e21e | 4993 | if (SvOBJECT(sv)) { |
4e8e7886 | 4994 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
4995 | SvOBJECT_off(sv); /* Curse the object. */ |
4996 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 4997 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 4998 | } |
463ee0b2 | 4999 | } |
524189f1 JH |
5000 | if (SvTYPE(sv) >= SVt_PVMG) { |
5001 | if (SvMAGIC(sv)) | |
5002 | mg_free(sv); | |
5003 | if (SvFLAGS(sv) & SVpad_TYPED) | |
5004 | SvREFCNT_dec(SvSTASH(sv)); | |
5005 | } | |
ec12f114 | 5006 | stash = NULL; |
79072805 | 5007 | switch (SvTYPE(sv)) { |
8990e307 | 5008 | case SVt_PVIO: |
df0bd2f4 GS |
5009 | if (IoIFP(sv) && |
5010 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 5011 | IoIFP(sv) != PerlIO_stdout() && |
5012 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 5013 | { |
f2b5be74 | 5014 | io_close((IO*)sv, FALSE); |
93578b34 | 5015 | } |
1d7c1841 | 5016 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 5017 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 5018 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
5019 | Safefree(IoTOP_NAME(sv)); |
5020 | Safefree(IoFMT_NAME(sv)); | |
5021 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 5022 | /* FALL THROUGH */ |
79072805 | 5023 | case SVt_PVBM: |
a0d0e21e | 5024 | goto freescalar; |
79072805 | 5025 | case SVt_PVCV: |
748a9306 | 5026 | case SVt_PVFM: |
85e6fe83 | 5027 | cv_undef((CV*)sv); |
a0d0e21e | 5028 | goto freescalar; |
79072805 | 5029 | case SVt_PVHV: |
85e6fe83 | 5030 | hv_undef((HV*)sv); |
a0d0e21e | 5031 | break; |
79072805 | 5032 | case SVt_PVAV: |
85e6fe83 | 5033 | av_undef((AV*)sv); |
a0d0e21e | 5034 | break; |
02270b4e GS |
5035 | case SVt_PVLV: |
5036 | SvREFCNT_dec(LvTARG(sv)); | |
5037 | goto freescalar; | |
a0d0e21e | 5038 | case SVt_PVGV: |
1edc1566 | 5039 | gp_free((GV*)sv); |
a0d0e21e | 5040 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
5041 | /* cannot decrease stash refcount yet, as we might recursively delete |
5042 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
5043 | of stash until current sv is completely gone. | |
5044 | -- JohnPC, 27 Mar 1998 */ | |
5045 | stash = GvSTASH(sv); | |
a0d0e21e | 5046 | /* FALL THROUGH */ |
79072805 | 5047 | case SVt_PVMG: |
79072805 LW |
5048 | case SVt_PVNV: |
5049 | case SVt_PVIV: | |
a0d0e21e LW |
5050 | freescalar: |
5051 | (void)SvOOK_off(sv); | |
79072805 LW |
5052 | /* FALL THROUGH */ |
5053 | case SVt_PV: | |
a0d0e21e | 5054 | case SVt_RV: |
810b8aa5 GS |
5055 | if (SvROK(sv)) { |
5056 | if (SvWEAKREF(sv)) | |
5057 | sv_del_backref(sv); | |
5058 | else | |
5059 | SvREFCNT_dec(SvRV(sv)); | |
5060 | } | |
1edc1566 | 5061 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 5062 | Safefree(SvPVX(sv)); |
1c846c1f | 5063 | else if (SvPVX(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
25716404 GS |
5064 | unsharepvn(SvPVX(sv), |
5065 | SvUTF8(sv) ? -(I32)SvCUR(sv) : SvCUR(sv), | |
5066 | SvUVX(sv)); | |
1c846c1f NIS |
5067 | SvFAKE_off(sv); |
5068 | } | |
79072805 | 5069 | break; |
a0d0e21e | 5070 | /* |
79072805 | 5071 | case SVt_NV: |
79072805 | 5072 | case SVt_IV: |
79072805 LW |
5073 | case SVt_NULL: |
5074 | break; | |
a0d0e21e | 5075 | */ |
79072805 LW |
5076 | } |
5077 | ||
5078 | switch (SvTYPE(sv)) { | |
5079 | case SVt_NULL: | |
5080 | break; | |
79072805 LW |
5081 | case SVt_IV: |
5082 | del_XIV(SvANY(sv)); | |
5083 | break; | |
5084 | case SVt_NV: | |
5085 | del_XNV(SvANY(sv)); | |
5086 | break; | |
ed6116ce LW |
5087 | case SVt_RV: |
5088 | del_XRV(SvANY(sv)); | |
5089 | break; | |
79072805 LW |
5090 | case SVt_PV: |
5091 | del_XPV(SvANY(sv)); | |
5092 | break; | |
5093 | case SVt_PVIV: | |
5094 | del_XPVIV(SvANY(sv)); | |
5095 | break; | |
5096 | case SVt_PVNV: | |
5097 | del_XPVNV(SvANY(sv)); | |
5098 | break; | |
5099 | case SVt_PVMG: | |
5100 | del_XPVMG(SvANY(sv)); | |
5101 | break; | |
5102 | case SVt_PVLV: | |
5103 | del_XPVLV(SvANY(sv)); | |
5104 | break; | |
5105 | case SVt_PVAV: | |
5106 | del_XPVAV(SvANY(sv)); | |
5107 | break; | |
5108 | case SVt_PVHV: | |
5109 | del_XPVHV(SvANY(sv)); | |
5110 | break; | |
5111 | case SVt_PVCV: | |
5112 | del_XPVCV(SvANY(sv)); | |
5113 | break; | |
5114 | case SVt_PVGV: | |
5115 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
5116 | /* code duplication for increased performance. */ |
5117 | SvFLAGS(sv) &= SVf_BREAK; | |
5118 | SvFLAGS(sv) |= SVTYPEMASK; | |
5119 | /* decrease refcount of the stash that owns this GV, if any */ | |
5120 | if (stash) | |
5121 | SvREFCNT_dec(stash); | |
5122 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
5123 | case SVt_PVBM: |
5124 | del_XPVBM(SvANY(sv)); | |
5125 | break; | |
5126 | case SVt_PVFM: | |
5127 | del_XPVFM(SvANY(sv)); | |
5128 | break; | |
8990e307 LW |
5129 | case SVt_PVIO: |
5130 | del_XPVIO(SvANY(sv)); | |
5131 | break; | |
79072805 | 5132 | } |
a0d0e21e | 5133 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 5134 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
5135 | } |
5136 | ||
645c22ef DM |
5137 | /* |
5138 | =for apidoc sv_newref | |
5139 | ||
5140 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5141 | instead. | |
5142 | ||
5143 | =cut | |
5144 | */ | |
5145 | ||
79072805 | 5146 | SV * |
864dbfa3 | 5147 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5148 | { |
463ee0b2 | 5149 | if (sv) |
dce16143 | 5150 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
5151 | return sv; |
5152 | } | |
5153 | ||
c461cf8f JH |
5154 | /* |
5155 | =for apidoc sv_free | |
5156 | ||
645c22ef DM |
5157 | Decrement an SV's reference count, and if it drops to zero, call |
5158 | C<sv_clear> to invoke destructors and free up any memory used by | |
5159 | the body; finally, deallocate the SV's head itself. | |
5160 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5161 | |
5162 | =cut | |
5163 | */ | |
5164 | ||
79072805 | 5165 | void |
864dbfa3 | 5166 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5167 | { |
dce16143 MB |
5168 | int refcount_is_zero; |
5169 | ||
79072805 LW |
5170 | if (!sv) |
5171 | return; | |
a0d0e21e LW |
5172 | if (SvREFCNT(sv) == 0) { |
5173 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5174 | /* this SV's refcnt has been artificially decremented to |
5175 | * trigger cleanup */ | |
a0d0e21e | 5176 | return; |
3280af22 | 5177 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5178 | return; |
d689ffdd JP |
5179 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5180 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5181 | SvREFCNT(sv) = (~(U32)0)/2; | |
5182 | return; | |
5183 | } | |
0453d815 | 5184 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 5185 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Attempt to free unreferenced scalar"); |
79072805 LW |
5186 | return; |
5187 | } | |
dce16143 MB |
5188 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
5189 | if (!refcount_is_zero) | |
8990e307 | 5190 | return; |
463ee0b2 LW |
5191 | #ifdef DEBUGGING |
5192 | if (SvTEMP(sv)) { | |
0453d815 | 5193 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 5194 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
1d7c1841 GS |
5195 | "Attempt to free temp prematurely: SV 0x%"UVxf, |
5196 | PTR2UV(sv)); | |
79072805 | 5197 | return; |
79072805 | 5198 | } |
463ee0b2 | 5199 | #endif |
d689ffdd JP |
5200 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5201 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5202 | SvREFCNT(sv) = (~(U32)0)/2; | |
5203 | return; | |
5204 | } | |
79072805 | 5205 | sv_clear(sv); |
477f5d66 CS |
5206 | if (! SvREFCNT(sv)) |
5207 | del_SV(sv); | |
79072805 LW |
5208 | } |
5209 | ||
954c1994 GS |
5210 | /* |
5211 | =for apidoc sv_len | |
5212 | ||
645c22ef DM |
5213 | Returns the length of the string in the SV. Handles magic and type |
5214 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5215 | |
5216 | =cut | |
5217 | */ | |
5218 | ||
79072805 | 5219 | STRLEN |
864dbfa3 | 5220 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5221 | { |
463ee0b2 | 5222 | STRLEN len; |
79072805 LW |
5223 | |
5224 | if (!sv) | |
5225 | return 0; | |
5226 | ||
8990e307 | 5227 | if (SvGMAGICAL(sv)) |
565764a8 | 5228 | len = mg_length(sv); |
8990e307 | 5229 | else |
497b47a8 | 5230 | (void)SvPV(sv, len); |
463ee0b2 | 5231 | return len; |
79072805 LW |
5232 | } |
5233 | ||
c461cf8f JH |
5234 | /* |
5235 | =for apidoc sv_len_utf8 | |
5236 | ||
5237 | Returns the number of characters in the string in an SV, counting wide | |
645c22ef | 5238 | UTF8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5239 | |
5240 | =cut | |
5241 | */ | |
5242 | ||
a0ed51b3 | 5243 | STRLEN |
864dbfa3 | 5244 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5245 | { |
a0ed51b3 LW |
5246 | if (!sv) |
5247 | return 0; | |
5248 | ||
a0ed51b3 | 5249 | if (SvGMAGICAL(sv)) |
b76347f2 | 5250 | return mg_length(sv); |
a0ed51b3 | 5251 | else |
b76347f2 JH |
5252 | { |
5253 | STRLEN len; | |
5254 | U8 *s = (U8*)SvPV(sv, len); | |
5255 | ||
d6efbbad | 5256 | return Perl_utf8_length(aTHX_ s, s + len); |
a0ed51b3 | 5257 | } |
a0ed51b3 LW |
5258 | } |
5259 | ||
645c22ef DM |
5260 | /* |
5261 | =for apidoc sv_pos_u2b | |
5262 | ||
5263 | Converts the value pointed to by offsetp from a count of UTF8 chars from | |
5264 | the start of the string, to a count of the equivalent number of bytes; if | |
5265 | lenp is non-zero, it does the same to lenp, but this time starting from | |
5266 | the offset, rather than from the start of the string. Handles magic and | |
5267 | type coercion. | |
5268 | ||
5269 | =cut | |
5270 | */ | |
5271 | ||
a0ed51b3 | 5272 | void |
864dbfa3 | 5273 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 5274 | { |
dfe13c55 GS |
5275 | U8 *start; |
5276 | U8 *s; | |
5277 | U8 *send; | |
a0ed51b3 LW |
5278 | I32 uoffset = *offsetp; |
5279 | STRLEN len; | |
5280 | ||
5281 | if (!sv) | |
5282 | return; | |
5283 | ||
dfe13c55 | 5284 | start = s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
5285 | send = s + len; |
5286 | while (s < send && uoffset--) | |
5287 | s += UTF8SKIP(s); | |
bb40f870 GA |
5288 | if (s >= send) |
5289 | s = send; | |
a0ed51b3 LW |
5290 | *offsetp = s - start; |
5291 | if (lenp) { | |
5292 | I32 ulen = *lenp; | |
5293 | start = s; | |
5294 | while (s < send && ulen--) | |
5295 | s += UTF8SKIP(s); | |
bb40f870 GA |
5296 | if (s >= send) |
5297 | s = send; | |
a0ed51b3 LW |
5298 | *lenp = s - start; |
5299 | } | |
5300 | return; | |
5301 | } | |
5302 | ||
645c22ef DM |
5303 | /* |
5304 | =for apidoc sv_pos_b2u | |
5305 | ||
5306 | Converts the value pointed to by offsetp from a count of bytes from the | |
5307 | start of the string, to a count of the equivalent number of UTF8 chars. | |
5308 | Handles magic and type coercion. | |
5309 | ||
5310 | =cut | |
5311 | */ | |
5312 | ||
a0ed51b3 | 5313 | void |
864dbfa3 | 5314 | Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp) |
a0ed51b3 | 5315 | { |
dfe13c55 GS |
5316 | U8 *s; |
5317 | U8 *send; | |
a0ed51b3 LW |
5318 | STRLEN len; |
5319 | ||
5320 | if (!sv) | |
5321 | return; | |
5322 | ||
dfe13c55 | 5323 | s = (U8*)SvPV(sv, len); |
a0ed51b3 | 5324 | if (len < *offsetp) |
a0dbb045 | 5325 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
a0ed51b3 LW |
5326 | send = s + *offsetp; |
5327 | len = 0; | |
5328 | while (s < send) { | |
a0dbb045 | 5329 | STRLEN n; |
2b9d42f0 NIS |
5330 | /* Call utf8n_to_uvchr() to validate the sequence */ |
5331 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
5332 | if (n > 0) { | |
a0dbb045 JH |
5333 | s += n; |
5334 | len++; | |
5335 | } | |
5336 | else | |
5337 | break; | |
a0ed51b3 LW |
5338 | } |
5339 | *offsetp = len; | |
5340 | return; | |
5341 | } | |
5342 | ||
954c1994 GS |
5343 | /* |
5344 | =for apidoc sv_eq | |
5345 | ||
5346 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
5347 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5348 | coerce its args to strings if necessary. | |
954c1994 GS |
5349 | |
5350 | =cut | |
5351 | */ | |
5352 | ||
79072805 | 5353 | I32 |
e01b9e88 | 5354 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 LW |
5355 | { |
5356 | char *pv1; | |
463ee0b2 | 5357 | STRLEN cur1; |
79072805 | 5358 | char *pv2; |
463ee0b2 | 5359 | STRLEN cur2; |
e01b9e88 | 5360 | I32 eq = 0; |
553e1bcc AT |
5361 | char *tpv = Nullch; |
5362 | SV* svrecode = Nullsv; | |
79072805 | 5363 | |
e01b9e88 | 5364 | if (!sv1) { |
79072805 LW |
5365 | pv1 = ""; |
5366 | cur1 = 0; | |
5367 | } | |
463ee0b2 | 5368 | else |
e01b9e88 | 5369 | pv1 = SvPV(sv1, cur1); |
79072805 | 5370 | |
e01b9e88 SC |
5371 | if (!sv2){ |
5372 | pv2 = ""; | |
5373 | cur2 = 0; | |
92d29cee | 5374 | } |
e01b9e88 SC |
5375 | else |
5376 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5377 | |
cf48d248 | 5378 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5379 | /* Differing utf8ness. |
5380 | * Do not UTF8size the comparands as a side-effect. */ | |
5381 | if (PL_encoding) { | |
5382 | if (SvUTF8(sv1)) { | |
553e1bcc AT |
5383 | svrecode = newSVpvn(pv2, cur2); |
5384 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5385 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
5386 | } |
5387 | else { | |
553e1bcc AT |
5388 | svrecode = newSVpvn(pv1, cur1); |
5389 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5390 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
5391 | } |
5392 | /* Now both are in UTF-8. */ | |
5393 | if (cur1 != cur2) | |
5394 | return FALSE; | |
5395 | } | |
5396 | else { | |
5397 | bool is_utf8 = TRUE; | |
5398 | ||
5399 | if (SvUTF8(sv1)) { | |
5400 | /* sv1 is the UTF-8 one, | |
5401 | * if is equal it must be downgrade-able */ | |
5402 | char *pv = (char*)bytes_from_utf8((U8*)pv1, | |
5403 | &cur1, &is_utf8); | |
5404 | if (pv != pv1) | |
553e1bcc | 5405 | pv1 = tpv = pv; |
799ef3cb JH |
5406 | } |
5407 | else { | |
5408 | /* sv2 is the UTF-8 one, | |
5409 | * if is equal it must be downgrade-able */ | |
5410 | char *pv = (char *)bytes_from_utf8((U8*)pv2, | |
5411 | &cur2, &is_utf8); | |
5412 | if (pv != pv2) | |
553e1bcc | 5413 | pv2 = tpv = pv; |
799ef3cb JH |
5414 | } |
5415 | if (is_utf8) { | |
5416 | /* Downgrade not possible - cannot be eq */ | |
5417 | return FALSE; | |
5418 | } | |
5419 | } | |
cf48d248 JH |
5420 | } |
5421 | ||
5422 | if (cur1 == cur2) | |
5423 | eq = memEQ(pv1, pv2, cur1); | |
e01b9e88 | 5424 | |
553e1bcc AT |
5425 | if (svrecode) |
5426 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5427 | |
553e1bcc AT |
5428 | if (tpv) |
5429 | Safefree(tpv); | |
cf48d248 | 5430 | |
e01b9e88 | 5431 | return eq; |
79072805 LW |
5432 | } |
5433 | ||
954c1994 GS |
5434 | /* |
5435 | =for apidoc sv_cmp | |
5436 | ||
5437 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
5438 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
5439 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5440 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
5441 | |
5442 | =cut | |
5443 | */ | |
5444 | ||
79072805 | 5445 | I32 |
e01b9e88 | 5446 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5447 | { |
560a288e | 5448 | STRLEN cur1, cur2; |
553e1bcc | 5449 | char *pv1, *pv2, *tpv = Nullch; |
cf48d248 | 5450 | I32 cmp; |
553e1bcc | 5451 | SV *svrecode = Nullsv; |
560a288e | 5452 | |
e01b9e88 SC |
5453 | if (!sv1) { |
5454 | pv1 = ""; | |
560a288e GS |
5455 | cur1 = 0; |
5456 | } | |
e01b9e88 SC |
5457 | else |
5458 | pv1 = SvPV(sv1, cur1); | |
560a288e | 5459 | |
553e1bcc | 5460 | if (!sv2) { |
e01b9e88 | 5461 | pv2 = ""; |
560a288e GS |
5462 | cur2 = 0; |
5463 | } | |
e01b9e88 SC |
5464 | else |
5465 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5466 | |
cf48d248 | 5467 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5468 | /* Differing utf8ness. |
5469 | * Do not UTF8size the comparands as a side-effect. */ | |
cf48d248 | 5470 | if (SvUTF8(sv1)) { |
799ef3cb | 5471 | if (PL_encoding) { |
553e1bcc AT |
5472 | svrecode = newSVpvn(pv2, cur2); |
5473 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5474 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
5475 | } |
5476 | else { | |
553e1bcc | 5477 | pv2 = tpv = (char*)bytes_to_utf8((U8*)pv2, &cur2); |
799ef3cb | 5478 | } |
cf48d248 JH |
5479 | } |
5480 | else { | |
799ef3cb | 5481 | if (PL_encoding) { |
553e1bcc AT |
5482 | svrecode = newSVpvn(pv1, cur1); |
5483 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5484 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
5485 | } |
5486 | else { | |
553e1bcc | 5487 | pv1 = tpv = (char*)bytes_to_utf8((U8*)pv1, &cur1); |
799ef3cb | 5488 | } |
cf48d248 JH |
5489 | } |
5490 | } | |
5491 | ||
e01b9e88 | 5492 | if (!cur1) { |
cf48d248 | 5493 | cmp = cur2 ? -1 : 0; |
e01b9e88 | 5494 | } else if (!cur2) { |
cf48d248 JH |
5495 | cmp = 1; |
5496 | } else { | |
5497 | I32 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); | |
e01b9e88 SC |
5498 | |
5499 | if (retval) { | |
cf48d248 | 5500 | cmp = retval < 0 ? -1 : 1; |
e01b9e88 | 5501 | } else if (cur1 == cur2) { |
cf48d248 JH |
5502 | cmp = 0; |
5503 | } else { | |
5504 | cmp = cur1 < cur2 ? -1 : 1; | |
e01b9e88 | 5505 | } |
cf48d248 | 5506 | } |
16660edb | 5507 | |
553e1bcc AT |
5508 | if (svrecode) |
5509 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5510 | |
553e1bcc AT |
5511 | if (tpv) |
5512 | Safefree(tpv); | |
cf48d248 JH |
5513 | |
5514 | return cmp; | |
bbce6d69 | 5515 | } |
16660edb | 5516 | |
c461cf8f JH |
5517 | /* |
5518 | =for apidoc sv_cmp_locale | |
5519 | ||
645c22ef DM |
5520 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
5521 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
5522 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
5523 | |
5524 | =cut | |
5525 | */ | |
5526 | ||
bbce6d69 | 5527 | I32 |
864dbfa3 | 5528 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 5529 | { |
36477c24 | 5530 | #ifdef USE_LOCALE_COLLATE |
16660edb | 5531 | |
bbce6d69 | 5532 | char *pv1, *pv2; |
5533 | STRLEN len1, len2; | |
5534 | I32 retval; | |
16660edb | 5535 | |
3280af22 | 5536 | if (PL_collation_standard) |
bbce6d69 | 5537 | goto raw_compare; |
16660edb | 5538 | |
bbce6d69 | 5539 | len1 = 0; |
8ac85365 | 5540 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 5541 | len2 = 0; |
8ac85365 | 5542 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 5543 | |
bbce6d69 | 5544 | if (!pv1 || !len1) { |
5545 | if (pv2 && len2) | |
5546 | return -1; | |
5547 | else | |
5548 | goto raw_compare; | |
5549 | } | |
5550 | else { | |
5551 | if (!pv2 || !len2) | |
5552 | return 1; | |
5553 | } | |
16660edb | 5554 | |
bbce6d69 | 5555 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 5556 | |
bbce6d69 | 5557 | if (retval) |
16660edb | 5558 | return retval < 0 ? -1 : 1; |
5559 | ||
bbce6d69 | 5560 | /* |
5561 | * When the result of collation is equality, that doesn't mean | |
5562 | * that there are no differences -- some locales exclude some | |
5563 | * characters from consideration. So to avoid false equalities, | |
5564 | * we use the raw string as a tiebreaker. | |
5565 | */ | |
16660edb | 5566 | |
bbce6d69 | 5567 | raw_compare: |
5568 | /* FALL THROUGH */ | |
16660edb | 5569 | |
36477c24 | 5570 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 5571 | |
bbce6d69 | 5572 | return sv_cmp(sv1, sv2); |
5573 | } | |
79072805 | 5574 | |
645c22ef | 5575 | |
36477c24 | 5576 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 5577 | |
7a4c00b4 | 5578 | /* |
645c22ef DM |
5579 | =for apidoc sv_collxfrm |
5580 | ||
5581 | Add Collate Transform magic to an SV if it doesn't already have it. | |
5582 | ||
5583 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
5584 | scalar data of the variable, but transformed to such a format that a normal | |
5585 | memory comparison can be used to compare the data according to the locale | |
5586 | settings. | |
5587 | ||
5588 | =cut | |
5589 | */ | |
5590 | ||
bbce6d69 | 5591 | char * |
864dbfa3 | 5592 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 5593 | { |
7a4c00b4 | 5594 | MAGIC *mg; |
16660edb | 5595 | |
14befaf4 | 5596 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 5597 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 5598 | char *s, *xf; |
5599 | STRLEN len, xlen; | |
5600 | ||
7a4c00b4 | 5601 | if (mg) |
5602 | Safefree(mg->mg_ptr); | |
bbce6d69 | 5603 | s = SvPV(sv, len); |
5604 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 5605 | if (SvREADONLY(sv)) { |
5606 | SAVEFREEPV(xf); | |
5607 | *nxp = xlen; | |
3280af22 | 5608 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 5609 | } |
7a4c00b4 | 5610 | if (! mg) { |
14befaf4 DM |
5611 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
5612 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 5613 | assert(mg); |
bbce6d69 | 5614 | } |
7a4c00b4 | 5615 | mg->mg_ptr = xf; |
565764a8 | 5616 | mg->mg_len = xlen; |
7a4c00b4 | 5617 | } |
5618 | else { | |
ff0cee69 | 5619 | if (mg) { |
5620 | mg->mg_ptr = NULL; | |
565764a8 | 5621 | mg->mg_len = -1; |
ff0cee69 | 5622 | } |
bbce6d69 | 5623 | } |
5624 | } | |
7a4c00b4 | 5625 | if (mg && mg->mg_ptr) { |
565764a8 | 5626 | *nxp = mg->mg_len; |
3280af22 | 5627 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 5628 | } |
5629 | else { | |
5630 | *nxp = 0; | |
5631 | return NULL; | |
16660edb | 5632 | } |
79072805 LW |
5633 | } |
5634 | ||
36477c24 | 5635 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 5636 | |
c461cf8f JH |
5637 | /* |
5638 | =for apidoc sv_gets | |
5639 | ||
5640 | Get a line from the filehandle and store it into the SV, optionally | |
5641 | appending to the currently-stored string. | |
5642 | ||
5643 | =cut | |
5644 | */ | |
5645 | ||
79072805 | 5646 | char * |
864dbfa3 | 5647 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 5648 | { |
c07a80fd | 5649 | char *rsptr; |
5650 | STRLEN rslen; | |
5651 | register STDCHAR rslast; | |
5652 | register STDCHAR *bp; | |
5653 | register I32 cnt; | |
9c5ffd7c | 5654 | I32 i = 0; |
8bfdd7d9 | 5655 | I32 rspara = 0; |
c07a80fd | 5656 | |
2213622d | 5657 | SV_CHECK_THINKFIRST(sv); |
6fc92669 | 5658 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 5659 | |
ff68c719 | 5660 | SvSCREAM_off(sv); |
c07a80fd | 5661 | |
8bfdd7d9 HS |
5662 | if (PL_curcop == &PL_compiling) { |
5663 | /* we always read code in line mode */ | |
5664 | rsptr = "\n"; | |
5665 | rslen = 1; | |
5666 | } | |
5667 | else if (RsSNARF(PL_rs)) { | |
c07a80fd | 5668 | rsptr = NULL; |
5669 | rslen = 0; | |
5670 | } | |
3280af22 | 5671 | else if (RsRECORD(PL_rs)) { |
5b2b9c68 HM |
5672 | I32 recsize, bytesread; |
5673 | char *buffer; | |
5674 | ||
5675 | /* Grab the size of the record we're getting */ | |
3280af22 | 5676 | recsize = SvIV(SvRV(PL_rs)); |
5b2b9c68 | 5677 | (void)SvPOK_only(sv); /* Validate pointer */ |
e670df4e | 5678 | buffer = SvGROW(sv, recsize + 1); |
5b2b9c68 HM |
5679 | /* Go yank in */ |
5680 | #ifdef VMS | |
5681 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
5682 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
5683 | /* doing, but we've got no other real choice */ | |
5684 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); | |
5685 | #else | |
5686 | bytesread = PerlIO_read(fp, buffer, recsize); | |
5687 | #endif | |
5688 | SvCUR_set(sv, bytesread); | |
e670df4e | 5689 | buffer[bytesread] = '\0'; |
7d59b7e4 NIS |
5690 | if (PerlIO_isutf8(fp)) |
5691 | SvUTF8_on(sv); | |
5692 | else | |
5693 | SvUTF8_off(sv); | |
5b2b9c68 HM |
5694 | return(SvCUR(sv) ? SvPVX(sv) : Nullch); |
5695 | } | |
3280af22 | 5696 | else if (RsPARA(PL_rs)) { |
c07a80fd | 5697 | rsptr = "\n\n"; |
5698 | rslen = 2; | |
8bfdd7d9 | 5699 | rspara = 1; |
c07a80fd | 5700 | } |
7d59b7e4 NIS |
5701 | else { |
5702 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
5703 | if (PerlIO_isutf8(fp)) { | |
5704 | rsptr = SvPVutf8(PL_rs, rslen); | |
5705 | } | |
5706 | else { | |
5707 | if (SvUTF8(PL_rs)) { | |
5708 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
5709 | Perl_croak(aTHX_ "Wide character in $/"); | |
5710 | } | |
5711 | } | |
5712 | rsptr = SvPV(PL_rs, rslen); | |
5713 | } | |
5714 | } | |
5715 | ||
c07a80fd | 5716 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
5717 | ||
8bfdd7d9 | 5718 | if (rspara) { /* have to do this both before and after */ |
79072805 | 5719 | do { /* to make sure file boundaries work right */ |
760ac839 | 5720 | if (PerlIO_eof(fp)) |
a0d0e21e | 5721 | return 0; |
760ac839 | 5722 | i = PerlIO_getc(fp); |
79072805 | 5723 | if (i != '\n') { |
a0d0e21e LW |
5724 | if (i == -1) |
5725 | return 0; | |
760ac839 | 5726 | PerlIO_ungetc(fp,i); |
79072805 LW |
5727 | break; |
5728 | } | |
5729 | } while (i != EOF); | |
5730 | } | |
c07a80fd | 5731 | |
760ac839 LW |
5732 | /* See if we know enough about I/O mechanism to cheat it ! */ |
5733 | ||
5734 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 5735 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
5736 | enough here - and may even be a macro allowing compile |
5737 | time optimization. | |
5738 | */ | |
5739 | ||
5740 | if (PerlIO_fast_gets(fp)) { | |
5741 | ||
5742 | /* | |
5743 | * We're going to steal some values from the stdio struct | |
5744 | * and put EVERYTHING in the innermost loop into registers. | |
5745 | */ | |
5746 | register STDCHAR *ptr; | |
5747 | STRLEN bpx; | |
5748 | I32 shortbuffered; | |
5749 | ||
16660edb | 5750 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
5751 | /* An ungetc()d char is handled separately from the regular | |
5752 | * buffer, so we getc() it back out and stuff it in the buffer. | |
5753 | */ | |
5754 | i = PerlIO_getc(fp); | |
5755 | if (i == EOF) return 0; | |
5756 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
5757 | (*fp)->_cnt++; | |
5758 | #endif | |
c07a80fd | 5759 | |
c2960299 | 5760 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 5761 | |
a20bf0c3 | 5762 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
a0d0e21e | 5763 | (void)SvPOK_only(sv); /* validate pointer */ |
79072805 LW |
5764 | if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ |
5765 | if (cnt > 80 && SvLEN(sv) > append) { | |
5766 | shortbuffered = cnt - SvLEN(sv) + append + 1; | |
5767 | cnt -= shortbuffered; | |
5768 | } | |
5769 | else { | |
5770 | shortbuffered = 0; | |
bbce6d69 | 5771 | /* remember that cnt can be negative */ |
5772 | SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1))); | |
79072805 LW |
5773 | } |
5774 | } | |
5775 | else | |
5776 | shortbuffered = 0; | |
c07a80fd | 5777 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 5778 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 5779 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5780 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 5781 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
ba7abf9d | 5782 | "Screamer: entering: PerlIO * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5783 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5784 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
5785 | for (;;) { |
5786 | screamer: | |
93a17b20 | 5787 | if (cnt > 0) { |
c07a80fd | 5788 | if (rslen) { |
760ac839 LW |
5789 | while (cnt > 0) { /* this | eat */ |
5790 | cnt--; | |
c07a80fd | 5791 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
5792 | goto thats_all_folks; /* screams | sed :-) */ | |
5793 | } | |
5794 | } | |
5795 | else { | |
1c846c1f NIS |
5796 | Copy(ptr, bp, cnt, char); /* this | eat */ |
5797 | bp += cnt; /* screams | dust */ | |
c07a80fd | 5798 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 5799 | cnt = 0; |
93a17b20 | 5800 | } |
79072805 LW |
5801 | } |
5802 | ||
748a9306 | 5803 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
5804 | cnt = shortbuffered; |
5805 | shortbuffered = 0; | |
c07a80fd | 5806 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5807 | SvCUR_set(sv, bpx); |
5808 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 5809 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
5810 | continue; |
5811 | } | |
5812 | ||
16660edb | 5813 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
5814 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
5815 | PTR2UV(ptr),(long)cnt)); | |
cc00df79 | 5816 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* deregisterize cnt and ptr */ |
ba7abf9d | 5817 | #if 0 |
16660edb | 5818 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5819 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5820 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5821 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 5822 | #endif |
1c846c1f | 5823 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 5824 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
5825 | another abstraction. */ | |
760ac839 | 5826 | i = PerlIO_getc(fp); /* get more characters */ |
ba7abf9d | 5827 | #if 0 |
16660edb | 5828 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5829 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5830 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5831 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 5832 | #endif |
a20bf0c3 JH |
5833 | cnt = PerlIO_get_cnt(fp); |
5834 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 5835 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5836 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 5837 | |
748a9306 LW |
5838 | if (i == EOF) /* all done for ever? */ |
5839 | goto thats_really_all_folks; | |
5840 | ||
c07a80fd | 5841 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5842 | SvCUR_set(sv, bpx); |
5843 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 5844 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
5845 | ||
760ac839 | 5846 | *bp++ = i; /* store character from PerlIO_getc */ |
79072805 | 5847 | |
c07a80fd | 5848 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 5849 | goto thats_all_folks; |
79072805 LW |
5850 | } |
5851 | ||
5852 | thats_all_folks: | |
c07a80fd | 5853 | if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || |
36477c24 | 5854 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 5855 | goto screamer; /* go back to the fray */ |
79072805 LW |
5856 | thats_really_all_folks: |
5857 | if (shortbuffered) | |
5858 | cnt += shortbuffered; | |
16660edb | 5859 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5860 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
cc00df79 | 5861 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 5862 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5863 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5864 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5865 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 5866 | *bp = '\0'; |
760ac839 | 5867 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 5868 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 5869 | "Screamer: done, len=%ld, string=|%.*s|\n", |
5870 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
5871 | } |
5872 | else | |
79072805 | 5873 | { |
4d2c4e07 | 5874 | #ifndef EPOC |
760ac839 | 5875 | /*The big, slow, and stupid way */ |
c07a80fd | 5876 | STDCHAR buf[8192]; |
4d2c4e07 OF |
5877 | #else |
5878 | /* Need to work around EPOC SDK features */ | |
5879 | /* On WINS: MS VC5 generates calls to _chkstk, */ | |
5880 | /* if a `large' stack frame is allocated */ | |
5881 | /* gcc on MARM does not generate calls like these */ | |
5882 | STDCHAR buf[1024]; | |
5883 | #endif | |
79072805 | 5884 | |
760ac839 | 5885 | screamer2: |
c07a80fd | 5886 | if (rslen) { |
760ac839 LW |
5887 | register STDCHAR *bpe = buf + sizeof(buf); |
5888 | bp = buf; | |
5889 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe) | |
5890 | ; /* keep reading */ | |
5891 | cnt = bp - buf; | |
c07a80fd | 5892 | } |
5893 | else { | |
760ac839 | 5894 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 5895 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
5896 | * both args of ?: operator, causing EOF to change into 255 | |
5897 | */ | |
5898 | if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; } | |
c07a80fd | 5899 | } |
79072805 LW |
5900 | |
5901 | if (append) | |
760ac839 | 5902 | sv_catpvn(sv, (char *) buf, cnt); |
79072805 | 5903 | else |
760ac839 | 5904 | sv_setpvn(sv, (char *) buf, cnt); |
c07a80fd | 5905 | |
5906 | if (i != EOF && /* joy */ | |
5907 | (!rslen || | |
5908 | SvCUR(sv) < rslen || | |
36477c24 | 5909 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
5910 | { |
5911 | append = -1; | |
63e4d877 CS |
5912 | /* |
5913 | * If we're reading from a TTY and we get a short read, | |
5914 | * indicating that the user hit his EOF character, we need | |
5915 | * to notice it now, because if we try to read from the TTY | |
5916 | * again, the EOF condition will disappear. | |
5917 | * | |
5918 | * The comparison of cnt to sizeof(buf) is an optimization | |
5919 | * that prevents unnecessary calls to feof(). | |
5920 | * | |
5921 | * - jik 9/25/96 | |
5922 | */ | |
5923 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
5924 | goto screamer2; | |
79072805 LW |
5925 | } |
5926 | } | |
5927 | ||
8bfdd7d9 | 5928 | if (rspara) { /* have to do this both before and after */ |
c07a80fd | 5929 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 5930 | i = PerlIO_getc(fp); |
79072805 | 5931 | if (i != '\n') { |
760ac839 | 5932 | PerlIO_ungetc(fp,i); |
79072805 LW |
5933 | break; |
5934 | } | |
5935 | } | |
5936 | } | |
c07a80fd | 5937 | |
7d59b7e4 NIS |
5938 | if (PerlIO_isutf8(fp)) |
5939 | SvUTF8_on(sv); | |
5940 | else | |
5941 | SvUTF8_off(sv); | |
5942 | ||
c07a80fd | 5943 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
5944 | } |
5945 | ||
954c1994 GS |
5946 | /* |
5947 | =for apidoc sv_inc | |
5948 | ||
645c22ef DM |
5949 | Auto-increment of the value in the SV, doing string to numeric conversion |
5950 | if necessary. Handles 'get' magic. | |
954c1994 GS |
5951 | |
5952 | =cut | |
5953 | */ | |
5954 | ||
79072805 | 5955 | void |
864dbfa3 | 5956 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
5957 | { |
5958 | register char *d; | |
463ee0b2 | 5959 | int flags; |
79072805 LW |
5960 | |
5961 | if (!sv) | |
5962 | return; | |
b23a5f78 GB |
5963 | if (SvGMAGICAL(sv)) |
5964 | mg_get(sv); | |
ed6116ce | 5965 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
5966 | if (SvREADONLY(sv) && SvFAKE(sv)) |
5967 | sv_force_normal(sv); | |
0f15f207 | 5968 | if (SvREADONLY(sv)) { |
3280af22 | 5969 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 5970 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 5971 | } |
a0d0e21e | 5972 | if (SvROK(sv)) { |
b5be31e9 | 5973 | IV i; |
9e7bc3e8 JD |
5974 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
5975 | return; | |
56431972 | 5976 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
5977 | sv_unref(sv); |
5978 | sv_setiv(sv, i); | |
a0d0e21e | 5979 | } |
ed6116ce | 5980 | } |
8990e307 | 5981 | flags = SvFLAGS(sv); |
28e5dec8 JH |
5982 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
5983 | /* It's (privately or publicly) a float, but not tested as an | |
5984 | integer, so test it to see. */ | |
d460ef45 | 5985 | (void) SvIV(sv); |
28e5dec8 JH |
5986 | flags = SvFLAGS(sv); |
5987 | } | |
5988 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
5989 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 5990 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 5991 | oops_its_int: |
59d8ce62 | 5992 | #endif |
25da4f38 IZ |
5993 | if (SvIsUV(sv)) { |
5994 | if (SvUVX(sv) == UV_MAX) | |
a1e868e7 | 5995 | sv_setnv(sv, UV_MAX_P1); |
25da4f38 IZ |
5996 | else |
5997 | (void)SvIOK_only_UV(sv); | |
5998 | ++SvUVX(sv); | |
5999 | } else { | |
6000 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 6001 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
6002 | else { |
6003 | (void)SvIOK_only(sv); | |
6004 | ++SvIVX(sv); | |
1c846c1f | 6005 | } |
55497cff | 6006 | } |
79072805 LW |
6007 | return; |
6008 | } | |
28e5dec8 JH |
6009 | if (flags & SVp_NOK) { |
6010 | (void)SvNOK_only(sv); | |
6011 | SvNVX(sv) += 1.0; | |
6012 | return; | |
6013 | } | |
6014 | ||
8990e307 | 6015 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
28e5dec8 JH |
6016 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
6017 | sv_upgrade(sv, SVt_IV); | |
6018 | (void)SvIOK_only(sv); | |
6019 | SvIVX(sv) = 1; | |
79072805 LW |
6020 | return; |
6021 | } | |
463ee0b2 | 6022 | d = SvPVX(sv); |
79072805 LW |
6023 | while (isALPHA(*d)) d++; |
6024 | while (isDIGIT(*d)) d++; | |
6025 | if (*d) { | |
28e5dec8 | 6026 | #ifdef PERL_PRESERVE_IVUV |
d1be9408 | 6027 | /* Got to punt this as an integer if needs be, but we don't issue |
28e5dec8 JH |
6028 | warnings. Probably ought to make the sv_iv_please() that does |
6029 | the conversion if possible, and silently. */ | |
c2988b20 | 6030 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6031 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6032 | /* Need to try really hard to see if it's an integer. | |
6033 | 9.22337203685478e+18 is an integer. | |
6034 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6035 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
6036 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
6037 | or we go insane. */ | |
d460ef45 | 6038 | |
28e5dec8 JH |
6039 | (void) sv_2iv(sv); |
6040 | if (SvIOK(sv)) | |
6041 | goto oops_its_int; | |
6042 | ||
6043 | /* sv_2iv *should* have made this an NV */ | |
6044 | if (flags & SVp_NOK) { | |
6045 | (void)SvNOK_only(sv); | |
6046 | SvNVX(sv) += 1.0; | |
6047 | return; | |
6048 | } | |
6049 | /* I don't think we can get here. Maybe I should assert this | |
6050 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6051 | Fall through. */ | |
6052 | #if defined(USE_LONG_DOUBLE) | |
6053 | 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", | |
6054 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6055 | #else | |
1779d84d | 6056 | 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 |
6057 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
6058 | #endif | |
6059 | } | |
6060 | #endif /* PERL_PRESERVE_IVUV */ | |
6061 | sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); | |
79072805 LW |
6062 | return; |
6063 | } | |
6064 | d--; | |
463ee0b2 | 6065 | while (d >= SvPVX(sv)) { |
79072805 LW |
6066 | if (isDIGIT(*d)) { |
6067 | if (++*d <= '9') | |
6068 | return; | |
6069 | *(d--) = '0'; | |
6070 | } | |
6071 | else { | |
9d116dd7 JH |
6072 | #ifdef EBCDIC |
6073 | /* MKS: The original code here died if letters weren't consecutive. | |
6074 | * at least it didn't have to worry about non-C locales. The | |
6075 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 6076 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
6077 | * [A-Za-z] are accepted by isALPHA in the C locale. |
6078 | */ | |
6079 | if (*d != 'z' && *d != 'Z') { | |
6080 | do { ++*d; } while (!isALPHA(*d)); | |
6081 | return; | |
6082 | } | |
6083 | *(d--) -= 'z' - 'a'; | |
6084 | #else | |
79072805 LW |
6085 | ++*d; |
6086 | if (isALPHA(*d)) | |
6087 | return; | |
6088 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 6089 | #endif |
79072805 LW |
6090 | } |
6091 | } | |
6092 | /* oh,oh, the number grew */ | |
6093 | SvGROW(sv, SvCUR(sv) + 2); | |
6094 | SvCUR(sv)++; | |
463ee0b2 | 6095 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
6096 | *d = d[-1]; |
6097 | if (isDIGIT(d[1])) | |
6098 | *d = '1'; | |
6099 | else | |
6100 | *d = d[1]; | |
6101 | } | |
6102 | ||
954c1994 GS |
6103 | /* |
6104 | =for apidoc sv_dec | |
6105 | ||
645c22ef DM |
6106 | Auto-decrement of the value in the SV, doing string to numeric conversion |
6107 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6108 | |
6109 | =cut | |
6110 | */ | |
6111 | ||
79072805 | 6112 | void |
864dbfa3 | 6113 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 6114 | { |
463ee0b2 LW |
6115 | int flags; |
6116 | ||
79072805 LW |
6117 | if (!sv) |
6118 | return; | |
b23a5f78 GB |
6119 | if (SvGMAGICAL(sv)) |
6120 | mg_get(sv); | |
ed6116ce | 6121 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
6122 | if (SvREADONLY(sv) && SvFAKE(sv)) |
6123 | sv_force_normal(sv); | |
0f15f207 | 6124 | if (SvREADONLY(sv)) { |
3280af22 | 6125 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 6126 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6127 | } |
a0d0e21e | 6128 | if (SvROK(sv)) { |
b5be31e9 | 6129 | IV i; |
9e7bc3e8 JD |
6130 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
6131 | return; | |
56431972 | 6132 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6133 | sv_unref(sv); |
6134 | sv_setiv(sv, i); | |
a0d0e21e | 6135 | } |
ed6116ce | 6136 | } |
28e5dec8 JH |
6137 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
6138 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 6139 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6140 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
6141 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6142 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6143 | oops_its_int: |
59d8ce62 | 6144 | #endif |
25da4f38 IZ |
6145 | if (SvIsUV(sv)) { |
6146 | if (SvUVX(sv) == 0) { | |
6147 | (void)SvIOK_only(sv); | |
6148 | SvIVX(sv) = -1; | |
6149 | } | |
6150 | else { | |
6151 | (void)SvIOK_only_UV(sv); | |
6152 | --SvUVX(sv); | |
1c846c1f | 6153 | } |
25da4f38 IZ |
6154 | } else { |
6155 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 6156 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
6157 | else { |
6158 | (void)SvIOK_only(sv); | |
6159 | --SvIVX(sv); | |
1c846c1f | 6160 | } |
55497cff | 6161 | } |
6162 | return; | |
6163 | } | |
28e5dec8 JH |
6164 | if (flags & SVp_NOK) { |
6165 | SvNVX(sv) -= 1.0; | |
6166 | (void)SvNOK_only(sv); | |
6167 | return; | |
6168 | } | |
8990e307 | 6169 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
6170 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
6171 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 6172 | SvNVX(sv) = -1.0; |
a0d0e21e | 6173 | (void)SvNOK_only(sv); |
79072805 LW |
6174 | return; |
6175 | } | |
28e5dec8 JH |
6176 | #ifdef PERL_PRESERVE_IVUV |
6177 | { | |
c2988b20 | 6178 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6179 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6180 | /* Need to try really hard to see if it's an integer. | |
6181 | 9.22337203685478e+18 is an integer. | |
6182 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6183 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
6184 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
6185 | or we go insane. */ | |
d460ef45 | 6186 | |
28e5dec8 JH |
6187 | (void) sv_2iv(sv); |
6188 | if (SvIOK(sv)) | |
6189 | goto oops_its_int; | |
6190 | ||
6191 | /* sv_2iv *should* have made this an NV */ | |
6192 | if (flags & SVp_NOK) { | |
6193 | (void)SvNOK_only(sv); | |
6194 | SvNVX(sv) -= 1.0; | |
6195 | return; | |
6196 | } | |
6197 | /* I don't think we can get here. Maybe I should assert this | |
6198 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6199 | Fall through. */ | |
6200 | #if defined(USE_LONG_DOUBLE) | |
6201 | 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", | |
6202 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6203 | #else | |
1779d84d | 6204 | 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 |
6205 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
6206 | #endif | |
6207 | } | |
6208 | } | |
6209 | #endif /* PERL_PRESERVE_IVUV */ | |
097ee67d | 6210 | sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
6211 | } |
6212 | ||
954c1994 GS |
6213 | /* |
6214 | =for apidoc sv_mortalcopy | |
6215 | ||
645c22ef | 6216 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
d4236ebc DM |
6217 | The new SV is marked as mortal. It will be destroyed "soon", either by an |
6218 | explicit call to FREETMPS, or by an implicit call at places such as | |
6219 | statement boundaries. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
6220 | |
6221 | =cut | |
6222 | */ | |
6223 | ||
79072805 LW |
6224 | /* Make a string that will exist for the duration of the expression |
6225 | * evaluation. Actually, it may have to last longer than that, but | |
6226 | * hopefully we won't free it until it has been assigned to a | |
6227 | * permanent location. */ | |
6228 | ||
6229 | SV * | |
864dbfa3 | 6230 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 6231 | { |
463ee0b2 | 6232 | register SV *sv; |
79072805 | 6233 | |
4561caa4 | 6234 | new_SV(sv); |
79072805 | 6235 | sv_setsv(sv,oldstr); |
677b06e3 GS |
6236 | EXTEND_MORTAL(1); |
6237 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
6238 | SvTEMP_on(sv); |
6239 | return sv; | |
6240 | } | |
6241 | ||
954c1994 GS |
6242 | /* |
6243 | =for apidoc sv_newmortal | |
6244 | ||
645c22ef | 6245 | Creates a new null SV which is mortal. The reference count of the SV is |
d4236ebc DM |
6246 | set to 1. It will be destroyed "soon", either by an explicit call to |
6247 | FREETMPS, or by an implicit call at places such as statement boundaries. | |
6248 | See also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
6249 | |
6250 | =cut | |
6251 | */ | |
6252 | ||
8990e307 | 6253 | SV * |
864dbfa3 | 6254 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
6255 | { |
6256 | register SV *sv; | |
6257 | ||
4561caa4 | 6258 | new_SV(sv); |
8990e307 | 6259 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
6260 | EXTEND_MORTAL(1); |
6261 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
6262 | return sv; |
6263 | } | |
6264 | ||
954c1994 GS |
6265 | /* |
6266 | =for apidoc sv_2mortal | |
6267 | ||
d4236ebc DM |
6268 | Marks an existing SV as mortal. The SV will be destroyed "soon", either |
6269 | by an explicit call to FREETMPS, or by an implicit call at places such as | |
6270 | statement boundaries. See also C<sv_newmortal> and C<sv_mortalcopy>. | |
954c1994 GS |
6271 | |
6272 | =cut | |
6273 | */ | |
6274 | ||
79072805 | 6275 | SV * |
864dbfa3 | 6276 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 LW |
6277 | { |
6278 | if (!sv) | |
6279 | return sv; | |
d689ffdd | 6280 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 6281 | return sv; |
677b06e3 GS |
6282 | EXTEND_MORTAL(1); |
6283 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 6284 | SvTEMP_on(sv); |
79072805 LW |
6285 | return sv; |
6286 | } | |
6287 | ||
954c1994 GS |
6288 | /* |
6289 | =for apidoc newSVpv | |
6290 | ||
6291 | Creates a new SV and copies a string into it. The reference count for the | |
6292 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
6293 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
6294 | ||
6295 | =cut | |
6296 | */ | |
6297 | ||
79072805 | 6298 | SV * |
864dbfa3 | 6299 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 6300 | { |
463ee0b2 | 6301 | register SV *sv; |
79072805 | 6302 | |
4561caa4 | 6303 | new_SV(sv); |
79072805 LW |
6304 | if (!len) |
6305 | len = strlen(s); | |
6306 | sv_setpvn(sv,s,len); | |
6307 | return sv; | |
6308 | } | |
6309 | ||
954c1994 GS |
6310 | /* |
6311 | =for apidoc newSVpvn | |
6312 | ||
6313 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 6314 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 GS |
6315 | string. You are responsible for ensuring that the source string is at least |
6316 | C<len> bytes long. | |
6317 | ||
6318 | =cut | |
6319 | */ | |
6320 | ||
9da1e3b5 | 6321 | SV * |
864dbfa3 | 6322 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
6323 | { |
6324 | register SV *sv; | |
6325 | ||
6326 | new_SV(sv); | |
9da1e3b5 MUN |
6327 | sv_setpvn(sv,s,len); |
6328 | return sv; | |
6329 | } | |
6330 | ||
1c846c1f NIS |
6331 | /* |
6332 | =for apidoc newSVpvn_share | |
6333 | ||
645c22ef DM |
6334 | Creates a new SV with its SvPVX pointing to a shared string in the string |
6335 | table. If the string does not already exist in the table, it is created | |
6336 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
6337 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
6338 | otherwise the hash is computed. The idea here is that as the string table | |
6339 | is used for shared hash keys these strings will have SvPVX == HeKEY and | |
6340 | hash lookup will avoid string compare. | |
1c846c1f NIS |
6341 | |
6342 | =cut | |
6343 | */ | |
6344 | ||
6345 | SV * | |
c3654f1a | 6346 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
6347 | { |
6348 | register SV *sv; | |
c3654f1a IH |
6349 | bool is_utf8 = FALSE; |
6350 | if (len < 0) { | |
77caf834 | 6351 | STRLEN tmplen = -len; |
c3654f1a | 6352 | is_utf8 = TRUE; |
75a54232 JH |
6353 | /* See the note in hv.c:hv_fetch() --jhi */ |
6354 | src = (char*)bytes_from_utf8((U8*)src, &tmplen, &is_utf8); | |
6355 | len = tmplen; | |
6356 | } | |
1c846c1f NIS |
6357 | if (!hash) |
6358 | PERL_HASH(hash, src, len); | |
6359 | new_SV(sv); | |
6360 | sv_upgrade(sv, SVt_PVIV); | |
c3654f1a | 6361 | SvPVX(sv) = sharepvn(src, is_utf8?-len:len, hash); |
1c846c1f NIS |
6362 | SvCUR(sv) = len; |
6363 | SvUVX(sv) = hash; | |
6364 | SvLEN(sv) = 0; | |
6365 | SvREADONLY_on(sv); | |
6366 | SvFAKE_on(sv); | |
6367 | SvPOK_on(sv); | |
c3654f1a IH |
6368 | if (is_utf8) |
6369 | SvUTF8_on(sv); | |
1c846c1f NIS |
6370 | return sv; |
6371 | } | |
6372 | ||
645c22ef | 6373 | |
cea2e8a9 | 6374 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
6375 | |
6376 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
6377 | * version of the main function, (which may itself be aliased to us). | |
6378 | * Don't access this version directly. | |
6379 | */ | |
6380 | ||
46fc3d4c | 6381 | SV * |
cea2e8a9 | 6382 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 6383 | { |
cea2e8a9 | 6384 | dTHX; |
46fc3d4c | 6385 | register SV *sv; |
6386 | va_list args; | |
46fc3d4c | 6387 | va_start(args, pat); |
c5be433b | 6388 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 6389 | va_end(args); |
6390 | return sv; | |
6391 | } | |
cea2e8a9 | 6392 | #endif |
46fc3d4c | 6393 | |
954c1994 GS |
6394 | /* |
6395 | =for apidoc newSVpvf | |
6396 | ||
645c22ef | 6397 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
6398 | C<sprintf>. |
6399 | ||
6400 | =cut | |
6401 | */ | |
6402 | ||
cea2e8a9 GS |
6403 | SV * |
6404 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
6405 | { | |
6406 | register SV *sv; | |
6407 | va_list args; | |
cea2e8a9 | 6408 | va_start(args, pat); |
c5be433b | 6409 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
6410 | va_end(args); |
6411 | return sv; | |
6412 | } | |
46fc3d4c | 6413 | |
645c22ef DM |
6414 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
6415 | ||
79072805 | 6416 | SV * |
c5be433b GS |
6417 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
6418 | { | |
6419 | register SV *sv; | |
6420 | new_SV(sv); | |
6421 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
6422 | return sv; | |
6423 | } | |
6424 | ||
954c1994 GS |
6425 | /* |
6426 | =for apidoc newSVnv | |
6427 | ||
6428 | Creates a new SV and copies a floating point value into it. | |
6429 | The reference count for the SV is set to 1. | |
6430 | ||
6431 | =cut | |
6432 | */ | |
6433 | ||
c5be433b | 6434 | SV * |
65202027 | 6435 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 6436 | { |
463ee0b2 | 6437 | register SV *sv; |
79072805 | 6438 | |
4561caa4 | 6439 | new_SV(sv); |
79072805 LW |
6440 | sv_setnv(sv,n); |
6441 | return sv; | |
6442 | } | |
6443 | ||
954c1994 GS |
6444 | /* |
6445 | =for apidoc newSViv | |
6446 | ||
6447 | Creates a new SV and copies an integer into it. The reference count for the | |
6448 | SV is set to 1. | |
6449 | ||
6450 | =cut | |
6451 | */ | |
6452 | ||
79072805 | 6453 | SV * |
864dbfa3 | 6454 | Perl_newSViv(pTHX_ IV i) |
79072805 | 6455 | { |
463ee0b2 | 6456 | register SV *sv; |
79072805 | 6457 | |
4561caa4 | 6458 | new_SV(sv); |
79072805 LW |
6459 | sv_setiv(sv,i); |
6460 | return sv; | |
6461 | } | |
6462 | ||
954c1994 | 6463 | /* |
1a3327fb JH |
6464 | =for apidoc newSVuv |
6465 | ||
6466 | Creates a new SV and copies an unsigned integer into it. | |
6467 | The reference count for the SV is set to 1. | |
6468 | ||
6469 | =cut | |
6470 | */ | |
6471 | ||
6472 | SV * | |
6473 | Perl_newSVuv(pTHX_ UV u) | |
6474 | { | |
6475 | register SV *sv; | |
6476 | ||
6477 | new_SV(sv); | |
6478 | sv_setuv(sv,u); | |
6479 | return sv; | |
6480 | } | |
6481 | ||
6482 | /* | |
954c1994 GS |
6483 | =for apidoc newRV_noinc |
6484 | ||
6485 | Creates an RV wrapper for an SV. The reference count for the original | |
6486 | SV is B<not> incremented. | |
6487 | ||
6488 | =cut | |
6489 | */ | |
6490 | ||
2304df62 | 6491 | SV * |
864dbfa3 | 6492 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
6493 | { |
6494 | register SV *sv; | |
6495 | ||
4561caa4 | 6496 | new_SV(sv); |
2304df62 | 6497 | sv_upgrade(sv, SVt_RV); |
76e3520e | 6498 | SvTEMP_off(tmpRef); |
d689ffdd | 6499 | SvRV(sv) = tmpRef; |
2304df62 | 6500 | SvROK_on(sv); |
2304df62 AD |
6501 | return sv; |
6502 | } | |
6503 | ||
ff276b08 | 6504 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
6505 | * newRV_inc is in fact #defined to newRV in sv.h |
6506 | */ | |
6507 | ||
5f05dabc | 6508 | SV * |
864dbfa3 | 6509 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 6510 | { |
5f6447b6 | 6511 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 6512 | } |
5f05dabc | 6513 | |
954c1994 GS |
6514 | /* |
6515 | =for apidoc newSVsv | |
6516 | ||
6517 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 6518 | (Uses C<sv_setsv>). |
954c1994 GS |
6519 | |
6520 | =cut | |
6521 | */ | |
6522 | ||
79072805 | 6523 | SV * |
864dbfa3 | 6524 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 6525 | { |
463ee0b2 | 6526 | register SV *sv; |
79072805 LW |
6527 | |
6528 | if (!old) | |
6529 | return Nullsv; | |
8990e307 | 6530 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 | 6531 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 6532 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "semi-panic: attempt to dup freed string"); |
79072805 LW |
6533 | return Nullsv; |
6534 | } | |
4561caa4 | 6535 | new_SV(sv); |
ff68c719 | 6536 | if (SvTEMP(old)) { |
6537 | SvTEMP_off(old); | |
463ee0b2 | 6538 | sv_setsv(sv,old); |
ff68c719 | 6539 | SvTEMP_on(old); |
79072805 LW |
6540 | } |
6541 | else | |
463ee0b2 LW |
6542 | sv_setsv(sv,old); |
6543 | return sv; | |
79072805 LW |
6544 | } |
6545 | ||
645c22ef DM |
6546 | /* |
6547 | =for apidoc sv_reset | |
6548 | ||
6549 | Underlying implementation for the C<reset> Perl function. | |
6550 | Note that the perl-level function is vaguely deprecated. | |
6551 | ||
6552 | =cut | |
6553 | */ | |
6554 | ||
79072805 | 6555 | void |
864dbfa3 | 6556 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 LW |
6557 | { |
6558 | register HE *entry; | |
6559 | register GV *gv; | |
6560 | register SV *sv; | |
6561 | register I32 i; | |
6562 | register PMOP *pm; | |
6563 | register I32 max; | |
4802d5d7 | 6564 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 6565 | |
49d8d3a1 MB |
6566 | if (!stash) |
6567 | return; | |
6568 | ||
79072805 LW |
6569 | if (!*s) { /* reset ?? searches */ |
6570 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 6571 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
6572 | } |
6573 | return; | |
6574 | } | |
6575 | ||
6576 | /* reset variables */ | |
6577 | ||
6578 | if (!HvARRAY(stash)) | |
6579 | return; | |
463ee0b2 LW |
6580 | |
6581 | Zero(todo, 256, char); | |
79072805 | 6582 | while (*s) { |
4802d5d7 | 6583 | i = (unsigned char)*s; |
79072805 LW |
6584 | if (s[1] == '-') { |
6585 | s += 2; | |
6586 | } | |
4802d5d7 | 6587 | max = (unsigned char)*s++; |
79072805 | 6588 | for ( ; i <= max; i++) { |
463ee0b2 LW |
6589 | todo[i] = 1; |
6590 | } | |
a0d0e21e | 6591 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 6592 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
6593 | entry; |
6594 | entry = HeNEXT(entry)) | |
6595 | { | |
1edc1566 | 6596 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 6597 | continue; |
1edc1566 | 6598 | gv = (GV*)HeVAL(entry); |
79072805 | 6599 | sv = GvSV(gv); |
9e35f4b3 GS |
6600 | if (SvTHINKFIRST(sv)) { |
6601 | if (!SvREADONLY(sv) && SvROK(sv)) | |
6602 | sv_unref(sv); | |
6603 | continue; | |
6604 | } | |
a0d0e21e | 6605 | (void)SvOK_off(sv); |
79072805 LW |
6606 | if (SvTYPE(sv) >= SVt_PV) { |
6607 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
6608 | if (SvPVX(sv) != Nullch) |
6609 | *SvPVX(sv) = '\0'; | |
44a8e56a | 6610 | SvTAINT(sv); |
79072805 LW |
6611 | } |
6612 | if (GvAV(gv)) { | |
6613 | av_clear(GvAV(gv)); | |
6614 | } | |
44a8e56a | 6615 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 6616 | hv_clear(GvHV(gv)); |
fa6a1c44 | 6617 | #ifdef USE_ENVIRON_ARRAY |
3280af22 | 6618 | if (gv == PL_envgv) |
79072805 | 6619 | environ[0] = Nullch; |
a0d0e21e | 6620 | #endif |
79072805 LW |
6621 | } |
6622 | } | |
6623 | } | |
6624 | } | |
6625 | } | |
6626 | ||
645c22ef DM |
6627 | /* |
6628 | =for apidoc sv_2io | |
6629 | ||
6630 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
6631 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
6632 | named after the PV if we're a string. | |
6633 | ||
6634 | =cut | |
6635 | */ | |
6636 | ||
46fc3d4c | 6637 | IO* |
864dbfa3 | 6638 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 6639 | { |
6640 | IO* io; | |
6641 | GV* gv; | |
2d8e6c8d | 6642 | STRLEN n_a; |
46fc3d4c | 6643 | |
6644 | switch (SvTYPE(sv)) { | |
6645 | case SVt_PVIO: | |
6646 | io = (IO*)sv; | |
6647 | break; | |
6648 | case SVt_PVGV: | |
6649 | gv = (GV*)sv; | |
6650 | io = GvIO(gv); | |
6651 | if (!io) | |
cea2e8a9 | 6652 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 6653 | break; |
6654 | default: | |
6655 | if (!SvOK(sv)) | |
cea2e8a9 | 6656 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 6657 | if (SvROK(sv)) |
6658 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 6659 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 6660 | if (gv) |
6661 | io = GvIO(gv); | |
6662 | else | |
6663 | io = 0; | |
6664 | if (!io) | |
cea2e8a9 | 6665 | Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a)); |
46fc3d4c | 6666 | break; |
6667 | } | |
6668 | return io; | |
6669 | } | |
6670 | ||
645c22ef DM |
6671 | /* |
6672 | =for apidoc sv_2cv | |
6673 | ||
6674 | Using various gambits, try to get a CV from an SV; in addition, try if | |
6675 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
6676 | ||
6677 | =cut | |
6678 | */ | |
6679 | ||
79072805 | 6680 | CV * |
864dbfa3 | 6681 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 | 6682 | { |
c04a4dfe JH |
6683 | GV *gv = Nullgv; |
6684 | CV *cv = Nullcv; | |
2d8e6c8d | 6685 | STRLEN n_a; |
79072805 LW |
6686 | |
6687 | if (!sv) | |
93a17b20 | 6688 | return *gvp = Nullgv, Nullcv; |
79072805 | 6689 | switch (SvTYPE(sv)) { |
79072805 LW |
6690 | case SVt_PVCV: |
6691 | *st = CvSTASH(sv); | |
6692 | *gvp = Nullgv; | |
6693 | return (CV*)sv; | |
6694 | case SVt_PVHV: | |
6695 | case SVt_PVAV: | |
6696 | *gvp = Nullgv; | |
6697 | return Nullcv; | |
8990e307 LW |
6698 | case SVt_PVGV: |
6699 | gv = (GV*)sv; | |
a0d0e21e | 6700 | *gvp = gv; |
8990e307 LW |
6701 | *st = GvESTASH(gv); |
6702 | goto fix_gv; | |
6703 | ||
79072805 | 6704 | default: |
a0d0e21e LW |
6705 | if (SvGMAGICAL(sv)) |
6706 | mg_get(sv); | |
6707 | if (SvROK(sv)) { | |
f5284f61 IZ |
6708 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
6709 | tryAMAGICunDEREF(to_cv); | |
6710 | ||
62f274bf GS |
6711 | sv = SvRV(sv); |
6712 | if (SvTYPE(sv) == SVt_PVCV) { | |
6713 | cv = (CV*)sv; | |
6714 | *gvp = Nullgv; | |
6715 | *st = CvSTASH(cv); | |
6716 | return cv; | |
6717 | } | |
6718 | else if(isGV(sv)) | |
6719 | gv = (GV*)sv; | |
6720 | else | |
cea2e8a9 | 6721 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 6722 | } |
62f274bf | 6723 | else if (isGV(sv)) |
79072805 LW |
6724 | gv = (GV*)sv; |
6725 | else | |
2d8e6c8d | 6726 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
6727 | *gvp = gv; |
6728 | if (!gv) | |
6729 | return Nullcv; | |
6730 | *st = GvESTASH(gv); | |
8990e307 | 6731 | fix_gv: |
8ebc5c01 | 6732 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 6733 | SV *tmpsv; |
748a9306 | 6734 | ENTER; |
4633a7c4 | 6735 | tmpsv = NEWSV(704,0); |
16660edb | 6736 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
6737 | /* XXX this is probably not what they think they're getting. |
6738 | * It has the same effect as "sub name;", i.e. just a forward | |
6739 | * declaration! */ | |
774d564b | 6740 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
6741 | newSVOP(OP_CONST, 0, tmpsv), |
6742 | Nullop, | |
8990e307 | 6743 | Nullop); |
748a9306 | 6744 | LEAVE; |
8ebc5c01 | 6745 | if (!GvCVu(gv)) |
cea2e8a9 | 6746 | Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a)); |
8990e307 | 6747 | } |
8ebc5c01 | 6748 | return GvCVu(gv); |
79072805 LW |
6749 | } |
6750 | } | |
6751 | ||
c461cf8f JH |
6752 | /* |
6753 | =for apidoc sv_true | |
6754 | ||
6755 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
6756 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
6757 | instead use an in-line version. | |
c461cf8f JH |
6758 | |
6759 | =cut | |
6760 | */ | |
6761 | ||
79072805 | 6762 | I32 |
864dbfa3 | 6763 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 6764 | { |
8990e307 LW |
6765 | if (!sv) |
6766 | return 0; | |
79072805 | 6767 | if (SvPOK(sv)) { |
4e35701f NIS |
6768 | register XPV* tXpv; |
6769 | if ((tXpv = (XPV*)SvANY(sv)) && | |
c2f1de04 | 6770 | (tXpv->xpv_cur > 1 || |
4e35701f | 6771 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
6772 | return 1; |
6773 | else | |
6774 | return 0; | |
6775 | } | |
6776 | else { | |
6777 | if (SvIOK(sv)) | |
463ee0b2 | 6778 | return SvIVX(sv) != 0; |
79072805 LW |
6779 | else { |
6780 | if (SvNOK(sv)) | |
463ee0b2 | 6781 | return SvNVX(sv) != 0.0; |
79072805 | 6782 | else |
463ee0b2 | 6783 | return sv_2bool(sv); |
79072805 LW |
6784 | } |
6785 | } | |
6786 | } | |
79072805 | 6787 | |
645c22ef DM |
6788 | /* |
6789 | =for apidoc sv_iv | |
6790 | ||
6791 | A private implementation of the C<SvIVx> macro for compilers which can't | |
6792 | cope with complex macro expressions. Always use the macro instead. | |
6793 | ||
6794 | =cut | |
6795 | */ | |
6796 | ||
ff68c719 | 6797 | IV |
864dbfa3 | 6798 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 6799 | { |
25da4f38 IZ |
6800 | if (SvIOK(sv)) { |
6801 | if (SvIsUV(sv)) | |
6802 | return (IV)SvUVX(sv); | |
ff68c719 | 6803 | return SvIVX(sv); |
25da4f38 | 6804 | } |
ff68c719 | 6805 | return sv_2iv(sv); |
85e6fe83 | 6806 | } |
85e6fe83 | 6807 | |
645c22ef DM |
6808 | /* |
6809 | =for apidoc sv_uv | |
6810 | ||
6811 | A private implementation of the C<SvUVx> macro for compilers which can't | |
6812 | cope with complex macro expressions. Always use the macro instead. | |
6813 | ||
6814 | =cut | |
6815 | */ | |
6816 | ||
ff68c719 | 6817 | UV |
864dbfa3 | 6818 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 6819 | { |
25da4f38 IZ |
6820 | if (SvIOK(sv)) { |
6821 | if (SvIsUV(sv)) | |
6822 | return SvUVX(sv); | |
6823 | return (UV)SvIVX(sv); | |
6824 | } | |
ff68c719 | 6825 | return sv_2uv(sv); |
6826 | } | |
85e6fe83 | 6827 | |
645c22ef DM |
6828 | /* |
6829 | =for apidoc sv_nv | |
6830 | ||
6831 | A private implementation of the C<SvNVx> macro for compilers which can't | |
6832 | cope with complex macro expressions. Always use the macro instead. | |
6833 | ||
6834 | =cut | |
6835 | */ | |
6836 | ||
65202027 | 6837 | NV |
864dbfa3 | 6838 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 6839 | { |
ff68c719 | 6840 | if (SvNOK(sv)) |
6841 | return SvNVX(sv); | |
6842 | return sv_2nv(sv); | |
79072805 | 6843 | } |
79072805 | 6844 | |
645c22ef DM |
6845 | /* |
6846 | =for apidoc sv_pv | |
6847 | ||
6848 | A private implementation of the C<SvPV_nolen> macro for compilers which can't | |
6849 | cope with complex macro expressions. Always use the macro instead. | |
6850 | ||
6851 | =cut | |
6852 | */ | |
6853 | ||
79072805 | 6854 | char * |
864dbfa3 | 6855 | Perl_sv_pv(pTHX_ SV *sv) |
1fa8b10d JD |
6856 | { |
6857 | STRLEN n_a; | |
6858 | ||
6859 | if (SvPOK(sv)) | |
6860 | return SvPVX(sv); | |
6861 | ||
6862 | return sv_2pv(sv, &n_a); | |
6863 | } | |
6864 | ||
645c22ef DM |
6865 | /* |
6866 | =for apidoc sv_pvn | |
6867 | ||
6868 | A private implementation of the C<SvPV> macro for compilers which can't | |
6869 | cope with complex macro expressions. Always use the macro instead. | |
6870 | ||
6871 | =cut | |
6872 | */ | |
6873 | ||
1fa8b10d | 6874 | char * |
864dbfa3 | 6875 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 6876 | { |
85e6fe83 LW |
6877 | if (SvPOK(sv)) { |
6878 | *lp = SvCUR(sv); | |
a0d0e21e | 6879 | return SvPVX(sv); |
85e6fe83 | 6880 | } |
463ee0b2 | 6881 | return sv_2pv(sv, lp); |
79072805 | 6882 | } |
79072805 | 6883 | |
6e9d1081 NC |
6884 | /* For -DCRIPPLED_CC only. See also C<sv_2pv_flags()>. |
6885 | */ | |
6886 | ||
6887 | char * | |
6888 | Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp) | |
6889 | { | |
6890 | if (SvPOK(sv)) { | |
6891 | *lp = SvCUR(sv); | |
6892 | return SvPVX(sv); | |
6893 | } | |
6894 | return sv_2pv_flags(sv, lp, 0); | |
6895 | } | |
6896 | ||
c461cf8f JH |
6897 | /* |
6898 | =for apidoc sv_pvn_force | |
6899 | ||
6900 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
6901 | A private implementation of the C<SvPV_force> macro for compilers which |
6902 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f JH |
6903 | |
6904 | =cut | |
6905 | */ | |
6906 | ||
a0d0e21e | 6907 | char * |
864dbfa3 | 6908 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) |
a0d0e21e | 6909 | { |
36f65ada | 6910 | return sv_pvn_force_flags(sv, lp, SV_GMAGIC); |
8d6d96c1 HS |
6911 | } |
6912 | ||
6913 | /* | |
6914 | =for apidoc sv_pvn_force_flags | |
6915 | ||
6916 | Get a sensible string out of the SV somehow. | |
6917 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
6918 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
6919 | implemented in terms of this function. | |
645c22ef DM |
6920 | You normally want to use the various wrapper macros instead: see |
6921 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
6922 | |
6923 | =cut | |
6924 | */ | |
6925 | ||
6926 | char * | |
6927 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
6928 | { | |
c04a4dfe | 6929 | char *s = NULL; |
a0d0e21e | 6930 | |
6fc92669 GS |
6931 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
6932 | sv_force_normal(sv); | |
1c846c1f | 6933 | |
a0d0e21e LW |
6934 | if (SvPOK(sv)) { |
6935 | *lp = SvCUR(sv); | |
6936 | } | |
6937 | else { | |
748a9306 | 6938 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
cea2e8a9 | 6939 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
53e06cf0 | 6940 | OP_NAME(PL_op)); |
a0d0e21e | 6941 | } |
4633a7c4 | 6942 | else |
8d6d96c1 | 6943 | s = sv_2pv_flags(sv, lp, flags); |
a0d0e21e LW |
6944 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
6945 | STRLEN len = *lp; | |
1c846c1f | 6946 | |
a0d0e21e LW |
6947 | if (SvROK(sv)) |
6948 | sv_unref(sv); | |
6949 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
6950 | SvGROW(sv, len + 1); | |
6951 | Move(s,SvPVX(sv),len,char); | |
6952 | SvCUR_set(sv, len); | |
6953 | *SvEND(sv) = '\0'; | |
6954 | } | |
6955 | if (!SvPOK(sv)) { | |
6956 | SvPOK_on(sv); /* validate pointer */ | |
6957 | SvTAINT(sv); | |
1d7c1841 GS |
6958 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
6959 | PTR2UV(sv),SvPVX(sv))); | |
a0d0e21e LW |
6960 | } |
6961 | } | |
6962 | return SvPVX(sv); | |
6963 | } | |
6964 | ||
645c22ef DM |
6965 | /* |
6966 | =for apidoc sv_pvbyte | |
6967 | ||
6968 | A private implementation of the C<SvPVbyte_nolen> macro for compilers | |
6969 | which can't cope with complex macro expressions. Always use the macro | |
6970 | instead. | |
6971 | ||
6972 | =cut | |
6973 | */ | |
6974 | ||
a0d0e21e | 6975 | char * |
7340a771 GS |
6976 | Perl_sv_pvbyte(pTHX_ SV *sv) |
6977 | { | |
ffebcc3e | 6978 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6979 | return sv_pv(sv); |
6980 | } | |
6981 | ||
645c22ef DM |
6982 | /* |
6983 | =for apidoc sv_pvbyten | |
6984 | ||
6985 | A private implementation of the C<SvPVbyte> macro for compilers | |
6986 | which can't cope with complex macro expressions. Always use the macro | |
6987 | instead. | |
6988 | ||
6989 | =cut | |
6990 | */ | |
6991 | ||
7340a771 GS |
6992 | char * |
6993 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
6994 | { | |
ffebcc3e | 6995 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6996 | return sv_pvn(sv,lp); |
6997 | } | |
6998 | ||
645c22ef DM |
6999 | /* |
7000 | =for apidoc sv_pvbyten_force | |
7001 | ||
7002 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
7003 | which can't cope with complex macro expressions. Always use the macro | |
7004 | instead. | |
7005 | ||
7006 | =cut | |
7007 | */ | |
7008 | ||
7340a771 GS |
7009 | char * |
7010 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
7011 | { | |
ffebcc3e | 7012 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
7013 | return sv_pvn_force(sv,lp); |
7014 | } | |
7015 | ||
645c22ef DM |
7016 | /* |
7017 | =for apidoc sv_pvutf8 | |
7018 | ||
7019 | A private implementation of the C<SvPVutf8_nolen> macro for compilers | |
7020 | which can't cope with complex macro expressions. Always use the macro | |
7021 | instead. | |
7022 | ||
7023 | =cut | |
7024 | */ | |
7025 | ||
7340a771 GS |
7026 | char * |
7027 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
7028 | { | |
560a288e | 7029 | sv_utf8_upgrade(sv); |
7340a771 GS |
7030 | return sv_pv(sv); |
7031 | } | |
7032 | ||
645c22ef DM |
7033 | /* |
7034 | =for apidoc sv_pvutf8n | |
7035 | ||
7036 | A private implementation of the C<SvPVutf8> macro for compilers | |
7037 | which can't cope with complex macro expressions. Always use the macro | |
7038 | instead. | |
7039 | ||
7040 | =cut | |
7041 | */ | |
7042 | ||
7340a771 GS |
7043 | char * |
7044 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
7045 | { | |
560a288e | 7046 | sv_utf8_upgrade(sv); |
7340a771 GS |
7047 | return sv_pvn(sv,lp); |
7048 | } | |
7049 | ||
c461cf8f JH |
7050 | /* |
7051 | =for apidoc sv_pvutf8n_force | |
7052 | ||
645c22ef DM |
7053 | A private implementation of the C<SvPVutf8_force> macro for compilers |
7054 | which can't cope with complex macro expressions. Always use the macro | |
7055 | instead. | |
c461cf8f JH |
7056 | |
7057 | =cut | |
7058 | */ | |
7059 | ||
7340a771 GS |
7060 | char * |
7061 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
7062 | { | |
560a288e | 7063 | sv_utf8_upgrade(sv); |
7340a771 GS |
7064 | return sv_pvn_force(sv,lp); |
7065 | } | |
7066 | ||
c461cf8f JH |
7067 | /* |
7068 | =for apidoc sv_reftype | |
7069 | ||
7070 | Returns a string describing what the SV is a reference to. | |
7071 | ||
7072 | =cut | |
7073 | */ | |
7074 | ||
7340a771 | 7075 | char * |
864dbfa3 | 7076 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e | 7077 | { |
c86bf373 AMS |
7078 | if (ob && SvOBJECT(sv)) { |
7079 | HV *svs = SvSTASH(sv); | |
7080 | /* [20011101.072] This bandaid for C<package;> should eventually | |
7081 | be removed. AMS 20011103 */ | |
7082 | return (svs ? HvNAME(svs) : "<none>"); | |
7083 | } | |
a0d0e21e LW |
7084 | else { |
7085 | switch (SvTYPE(sv)) { | |
7086 | case SVt_NULL: | |
7087 | case SVt_IV: | |
7088 | case SVt_NV: | |
7089 | case SVt_RV: | |
7090 | case SVt_PV: | |
7091 | case SVt_PVIV: | |
7092 | case SVt_PVNV: | |
7093 | case SVt_PVMG: | |
7094 | case SVt_PVBM: | |
7095 | if (SvROK(sv)) | |
7096 | return "REF"; | |
7097 | else | |
7098 | return "SCALAR"; | |
7099 | case SVt_PVLV: return "LVALUE"; | |
7100 | case SVt_PVAV: return "ARRAY"; | |
7101 | case SVt_PVHV: return "HASH"; | |
7102 | case SVt_PVCV: return "CODE"; | |
7103 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 7104 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 7105 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
7106 | default: return "UNKNOWN"; |
7107 | } | |
7108 | } | |
7109 | } | |
7110 | ||
954c1994 GS |
7111 | /* |
7112 | =for apidoc sv_isobject | |
7113 | ||
7114 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
7115 | object. If the SV is not an RV, or if the object is not blessed, then this | |
7116 | will return false. | |
7117 | ||
7118 | =cut | |
7119 | */ | |
7120 | ||
463ee0b2 | 7121 | int |
864dbfa3 | 7122 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 7123 | { |
68dc0745 | 7124 | if (!sv) |
7125 | return 0; | |
7126 | if (SvGMAGICAL(sv)) | |
7127 | mg_get(sv); | |
85e6fe83 LW |
7128 | if (!SvROK(sv)) |
7129 | return 0; | |
7130 | sv = (SV*)SvRV(sv); | |
7131 | if (!SvOBJECT(sv)) | |
7132 | return 0; | |
7133 | return 1; | |
7134 | } | |
7135 | ||
954c1994 GS |
7136 | /* |
7137 | =for apidoc sv_isa | |
7138 | ||
7139 | Returns a boolean indicating whether the SV is blessed into the specified | |
7140 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
7141 | an inheritance relationship. | |
7142 | ||
7143 | =cut | |
7144 | */ | |
7145 | ||
85e6fe83 | 7146 | int |
864dbfa3 | 7147 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 7148 | { |
68dc0745 | 7149 | if (!sv) |
7150 | return 0; | |
7151 | if (SvGMAGICAL(sv)) | |
7152 | mg_get(sv); | |
ed6116ce | 7153 | if (!SvROK(sv)) |
463ee0b2 | 7154 | return 0; |
ed6116ce LW |
7155 | sv = (SV*)SvRV(sv); |
7156 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
7157 | return 0; |
7158 | ||
7159 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
7160 | } | |
7161 | ||
954c1994 GS |
7162 | /* |
7163 | =for apidoc newSVrv | |
7164 | ||
7165 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
7166 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
7167 | be blessed in the specified package. The new SV is returned and its | |
7168 | reference count is 1. | |
7169 | ||
7170 | =cut | |
7171 | */ | |
7172 | ||
463ee0b2 | 7173 | SV* |
864dbfa3 | 7174 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 7175 | { |
463ee0b2 LW |
7176 | SV *sv; |
7177 | ||
4561caa4 | 7178 | new_SV(sv); |
51cf62d8 | 7179 | |
2213622d | 7180 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 | 7181 | SvAMAGIC_off(rv); |
51cf62d8 | 7182 | |
0199fce9 JD |
7183 | if (SvTYPE(rv) >= SVt_PVMG) { |
7184 | U32 refcnt = SvREFCNT(rv); | |
7185 | SvREFCNT(rv) = 0; | |
7186 | sv_clear(rv); | |
7187 | SvFLAGS(rv) = 0; | |
7188 | SvREFCNT(rv) = refcnt; | |
7189 | } | |
7190 | ||
51cf62d8 | 7191 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
7192 | sv_upgrade(rv, SVt_RV); |
7193 | else if (SvTYPE(rv) > SVt_RV) { | |
7194 | (void)SvOOK_off(rv); | |
7195 | if (SvPVX(rv) && SvLEN(rv)) | |
7196 | Safefree(SvPVX(rv)); | |
7197 | SvCUR_set(rv, 0); | |
7198 | SvLEN_set(rv, 0); | |
7199 | } | |
51cf62d8 OT |
7200 | |
7201 | (void)SvOK_off(rv); | |
053fc874 | 7202 | SvRV(rv) = sv; |
ed6116ce | 7203 | SvROK_on(rv); |
463ee0b2 | 7204 | |
a0d0e21e LW |
7205 | if (classname) { |
7206 | HV* stash = gv_stashpv(classname, TRUE); | |
7207 | (void)sv_bless(rv, stash); | |
7208 | } | |
7209 | return sv; | |
7210 | } | |
7211 | ||
954c1994 GS |
7212 | /* |
7213 | =for apidoc sv_setref_pv | |
7214 | ||
7215 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
7216 | argument will be upgraded to an RV. That RV will be modified to point to | |
7217 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
7218 | into the SV. The C<classname> argument indicates the package for the | |
7219 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7220 | will be returned and will have a reference count of 1. | |
7221 | ||
7222 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
7223 | objects will become corrupted by the pointer copy process. | |
7224 | ||
7225 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
7226 | ||
7227 | =cut | |
7228 | */ | |
7229 | ||
a0d0e21e | 7230 | SV* |
864dbfa3 | 7231 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 7232 | { |
189b2af5 | 7233 | if (!pv) { |
3280af22 | 7234 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
7235 | SvSETMAGIC(rv); |
7236 | } | |
a0d0e21e | 7237 | else |
56431972 | 7238 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
7239 | return rv; |
7240 | } | |
7241 | ||
954c1994 GS |
7242 | /* |
7243 | =for apidoc sv_setref_iv | |
7244 | ||
7245 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
7246 | argument will be upgraded to an RV. That RV will be modified to point to | |
7247 | the new SV. The C<classname> argument indicates the package for the | |
7248 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7249 | will be returned and will have a reference count of 1. | |
7250 | ||
7251 | =cut | |
7252 | */ | |
7253 | ||
a0d0e21e | 7254 | SV* |
864dbfa3 | 7255 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
7256 | { |
7257 | sv_setiv(newSVrv(rv,classname), iv); | |
7258 | return rv; | |
7259 | } | |
7260 | ||
954c1994 | 7261 | /* |
e1c57cef JH |
7262 | =for apidoc sv_setref_uv |
7263 | ||
7264 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
7265 | argument will be upgraded to an RV. That RV will be modified to point to | |
7266 | the new SV. The C<classname> argument indicates the package for the | |
7267 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7268 | will be returned and will have a reference count of 1. | |
7269 | ||
7270 | =cut | |
7271 | */ | |
7272 | ||
7273 | SV* | |
7274 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
7275 | { | |
7276 | sv_setuv(newSVrv(rv,classname), uv); | |
7277 | return rv; | |
7278 | } | |
7279 | ||
7280 | /* | |
954c1994 GS |
7281 | =for apidoc sv_setref_nv |
7282 | ||
7283 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
7284 | argument will be upgraded to an RV. That RV will be modified to point to | |
7285 | the new SV. The C<classname> argument indicates the package for the | |
7286 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7287 | will be returned and will have a reference count of 1. | |
7288 | ||
7289 | =cut | |
7290 | */ | |
7291 | ||
a0d0e21e | 7292 | SV* |
65202027 | 7293 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
7294 | { |
7295 | sv_setnv(newSVrv(rv,classname), nv); | |
7296 | return rv; | |
7297 | } | |
463ee0b2 | 7298 | |
954c1994 GS |
7299 | /* |
7300 | =for apidoc sv_setref_pvn | |
7301 | ||
7302 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
7303 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
7304 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
7305 | argument indicates the package for the blessing. Set C<classname> to | |
7306 | C<Nullch> to avoid the blessing. The new SV will be returned and will have | |
7307 | a reference count of 1. | |
7308 | ||
7309 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
7310 | ||
7311 | =cut | |
7312 | */ | |
7313 | ||
a0d0e21e | 7314 | SV* |
864dbfa3 | 7315 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
7316 | { |
7317 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
7318 | return rv; |
7319 | } | |
7320 | ||
954c1994 GS |
7321 | /* |
7322 | =for apidoc sv_bless | |
7323 | ||
7324 | Blesses an SV into a specified package. The SV must be an RV. The package | |
7325 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
7326 | of the SV is unaffected. | |
7327 | ||
7328 | =cut | |
7329 | */ | |
7330 | ||
a0d0e21e | 7331 | SV* |
864dbfa3 | 7332 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 7333 | { |
76e3520e | 7334 | SV *tmpRef; |
a0d0e21e | 7335 | if (!SvROK(sv)) |
cea2e8a9 | 7336 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
7337 | tmpRef = SvRV(sv); |
7338 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
7339 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 7340 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
7341 | if (SvOBJECT(tmpRef)) { |
7342 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7343 | --PL_sv_objcount; |
76e3520e | 7344 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 7345 | } |
a0d0e21e | 7346 | } |
76e3520e GS |
7347 | SvOBJECT_on(tmpRef); |
7348 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7349 | ++PL_sv_objcount; |
76e3520e GS |
7350 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
7351 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e | 7352 | |
2e3febc6 CS |
7353 | if (Gv_AMG(stash)) |
7354 | SvAMAGIC_on(sv); | |
7355 | else | |
7356 | SvAMAGIC_off(sv); | |
a0d0e21e | 7357 | |
1edbfb88 AB |
7358 | if(SvSMAGICAL(tmpRef)) |
7359 | if(mg_find(tmpRef, PERL_MAGIC_ext) || mg_find(tmpRef, PERL_MAGIC_uvar)) | |
7360 | mg_set(tmpRef); | |
7361 | ||
7362 | ||
ecdeb87c | 7363 | |
a0d0e21e LW |
7364 | return sv; |
7365 | } | |
7366 | ||
645c22ef DM |
7367 | /* Downgrades a PVGV to a PVMG. |
7368 | * | |
7369 | * XXX This function doesn't actually appear to be used anywhere | |
7370 | * DAPM 15-Jun-01 | |
7371 | */ | |
7372 | ||
76e3520e | 7373 | STATIC void |
cea2e8a9 | 7374 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 7375 | { |
850fabdf GS |
7376 | void *xpvmg; |
7377 | ||
a0d0e21e LW |
7378 | assert(SvTYPE(sv) == SVt_PVGV); |
7379 | SvFAKE_off(sv); | |
7380 | if (GvGP(sv)) | |
1edc1566 | 7381 | gp_free((GV*)sv); |
e826b3c7 GS |
7382 | if (GvSTASH(sv)) { |
7383 | SvREFCNT_dec(GvSTASH(sv)); | |
7384 | GvSTASH(sv) = Nullhv; | |
7385 | } | |
14befaf4 | 7386 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 7387 | Safefree(GvNAME(sv)); |
a5f75d66 | 7388 | GvMULTI_off(sv); |
850fabdf GS |
7389 | |
7390 | /* need to keep SvANY(sv) in the right arena */ | |
7391 | xpvmg = new_XPVMG(); | |
7392 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
7393 | del_XPVGV(SvANY(sv)); | |
7394 | SvANY(sv) = xpvmg; | |
7395 | ||
a0d0e21e LW |
7396 | SvFLAGS(sv) &= ~SVTYPEMASK; |
7397 | SvFLAGS(sv) |= SVt_PVMG; | |
7398 | } | |
7399 | ||
954c1994 | 7400 | /* |
840a7b70 | 7401 | =for apidoc sv_unref_flags |
954c1994 GS |
7402 | |
7403 | Unsets the RV status of the SV, and decrements the reference count of | |
7404 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
7405 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
7406 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
7407 | (otherwise the decrementing is conditional on the reference count being | |
7408 | different from one or the reference being a readonly SV). | |
7889fe52 | 7409 | See C<SvROK_off>. |
954c1994 GS |
7410 | |
7411 | =cut | |
7412 | */ | |
7413 | ||
ed6116ce | 7414 | void |
840a7b70 | 7415 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 7416 | { |
a0d0e21e | 7417 | SV* rv = SvRV(sv); |
810b8aa5 GS |
7418 | |
7419 | if (SvWEAKREF(sv)) { | |
7420 | sv_del_backref(sv); | |
7421 | SvWEAKREF_off(sv); | |
7422 | SvRV(sv) = 0; | |
7423 | return; | |
7424 | } | |
ed6116ce LW |
7425 | SvRV(sv) = 0; |
7426 | SvROK_off(sv); | |
840a7b70 | 7427 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv) || flags) /* SV_IMMEDIATE_UNREF */ |
4633a7c4 | 7428 | SvREFCNT_dec(rv); |
840a7b70 | 7429 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 7430 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 7431 | } |
8990e307 | 7432 | |
840a7b70 IZ |
7433 | /* |
7434 | =for apidoc sv_unref | |
7435 | ||
7436 | Unsets the RV status of the SV, and decrements the reference count of | |
7437 | whatever was being referenced by the RV. This can almost be thought of | |
7438 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 7439 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
7440 | |
7441 | =cut | |
7442 | */ | |
7443 | ||
7444 | void | |
7445 | Perl_sv_unref(pTHX_ SV *sv) | |
7446 | { | |
7447 | sv_unref_flags(sv, 0); | |
7448 | } | |
7449 | ||
645c22ef DM |
7450 | /* |
7451 | =for apidoc sv_taint | |
7452 | ||
7453 | Taint an SV. Use C<SvTAINTED_on> instead. | |
7454 | =cut | |
7455 | */ | |
7456 | ||
bbce6d69 | 7457 | void |
864dbfa3 | 7458 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 7459 | { |
14befaf4 | 7460 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 7461 | } |
7462 | ||
645c22ef DM |
7463 | /* |
7464 | =for apidoc sv_untaint | |
7465 | ||
7466 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
7467 | =cut | |
7468 | */ | |
7469 | ||
bbce6d69 | 7470 | void |
864dbfa3 | 7471 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 7472 | { |
13f57bf8 | 7473 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7474 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 7475 | if (mg) |
565764a8 | 7476 | mg->mg_len &= ~1; |
36477c24 | 7477 | } |
bbce6d69 | 7478 | } |
7479 | ||
645c22ef DM |
7480 | /* |
7481 | =for apidoc sv_tainted | |
7482 | ||
7483 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
7484 | =cut | |
7485 | */ | |
7486 | ||
bbce6d69 | 7487 | bool |
864dbfa3 | 7488 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 7489 | { |
13f57bf8 | 7490 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7491 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 7492 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 7493 | return TRUE; |
7494 | } | |
7495 | return FALSE; | |
bbce6d69 | 7496 | } |
7497 | ||
954c1994 GS |
7498 | /* |
7499 | =for apidoc sv_setpviv | |
7500 | ||
7501 | Copies an integer into the given SV, also updating its string value. | |
7502 | Does not handle 'set' magic. See C<sv_setpviv_mg>. | |
7503 | ||
7504 | =cut | |
7505 | */ | |
7506 | ||
84902520 | 7507 | void |
864dbfa3 | 7508 | Perl_sv_setpviv(pTHX_ SV *sv, IV iv) |
84902520 | 7509 | { |
25da4f38 IZ |
7510 | char buf[TYPE_CHARS(UV)]; |
7511 | char *ebuf; | |
7512 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
84902520 | 7513 | |
25da4f38 | 7514 | sv_setpvn(sv, ptr, ebuf - ptr); |
84902520 TB |
7515 | } |
7516 | ||
954c1994 GS |
7517 | /* |
7518 | =for apidoc sv_setpviv_mg | |
7519 | ||
7520 | Like C<sv_setpviv>, but also handles 'set' magic. | |
7521 | ||
7522 | =cut | |
7523 | */ | |
7524 | ||
ef50df4b | 7525 | void |
864dbfa3 | 7526 | Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) |
ef50df4b | 7527 | { |
25da4f38 IZ |
7528 | char buf[TYPE_CHARS(UV)]; |
7529 | char *ebuf; | |
7530 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
7531 | ||
7532 | sv_setpvn(sv, ptr, ebuf - ptr); | |
ef50df4b GS |
7533 | SvSETMAGIC(sv); |
7534 | } | |
7535 | ||
cea2e8a9 | 7536 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7537 | |
7538 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7539 | * version of the main function, (which may itself be aliased to us). | |
7540 | * Don't access this version directly. | |
7541 | */ | |
7542 | ||
cea2e8a9 GS |
7543 | void |
7544 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
7545 | { | |
7546 | dTHX; | |
7547 | va_list args; | |
7548 | va_start(args, pat); | |
c5be433b | 7549 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
7550 | va_end(args); |
7551 | } | |
7552 | ||
645c22ef DM |
7553 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7554 | * version of the main function, (which may itself be aliased to us). | |
7555 | * Don't access this version directly. | |
7556 | */ | |
cea2e8a9 GS |
7557 | |
7558 | void | |
7559 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7560 | { | |
7561 | dTHX; | |
7562 | va_list args; | |
7563 | va_start(args, pat); | |
c5be433b | 7564 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 7565 | va_end(args); |
cea2e8a9 GS |
7566 | } |
7567 | #endif | |
7568 | ||
954c1994 GS |
7569 | /* |
7570 | =for apidoc sv_setpvf | |
7571 | ||
7572 | Processes its arguments like C<sprintf> and sets an SV to the formatted | |
7573 | output. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
7574 | ||
7575 | =cut | |
7576 | */ | |
7577 | ||
46fc3d4c | 7578 | void |
864dbfa3 | 7579 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7580 | { |
7581 | va_list args; | |
46fc3d4c | 7582 | va_start(args, pat); |
c5be433b | 7583 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 7584 | va_end(args); |
7585 | } | |
7586 | ||
645c22ef DM |
7587 | /* backend for C<sv_setpvf> and C<sv_setpvf_nocontext> */ |
7588 | ||
c5be433b GS |
7589 | void |
7590 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
7591 | { | |
7592 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7593 | } | |
ef50df4b | 7594 | |
954c1994 GS |
7595 | /* |
7596 | =for apidoc sv_setpvf_mg | |
7597 | ||
7598 | Like C<sv_setpvf>, but also handles 'set' magic. | |
7599 | ||
7600 | =cut | |
7601 | */ | |
7602 | ||
ef50df4b | 7603 | void |
864dbfa3 | 7604 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7605 | { |
7606 | va_list args; | |
ef50df4b | 7607 | va_start(args, pat); |
c5be433b | 7608 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 7609 | va_end(args); |
c5be433b GS |
7610 | } |
7611 | ||
645c22ef DM |
7612 | /* backend for C<sv_setpvf_mg> C<setpvf_mg_nocontext> */ |
7613 | ||
c5be433b GS |
7614 | void |
7615 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7616 | { | |
7617 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7618 | SvSETMAGIC(sv); |
7619 | } | |
7620 | ||
cea2e8a9 | 7621 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7622 | |
7623 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7624 | * version of the main function, (which may itself be aliased to us). | |
7625 | * Don't access this version directly. | |
7626 | */ | |
7627 | ||
cea2e8a9 GS |
7628 | void |
7629 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
7630 | { | |
7631 | dTHX; | |
7632 | va_list args; | |
7633 | va_start(args, pat); | |
c5be433b | 7634 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
7635 | va_end(args); |
7636 | } | |
7637 | ||
645c22ef DM |
7638 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7639 | * version of the main function, (which may itself be aliased to us). | |
7640 | * Don't access this version directly. | |
7641 | */ | |
7642 | ||
cea2e8a9 GS |
7643 | void |
7644 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7645 | { | |
7646 | dTHX; | |
7647 | va_list args; | |
7648 | va_start(args, pat); | |
c5be433b | 7649 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 7650 | va_end(args); |
cea2e8a9 GS |
7651 | } |
7652 | #endif | |
7653 | ||
954c1994 GS |
7654 | /* |
7655 | =for apidoc sv_catpvf | |
7656 | ||
d5ce4a7c GA |
7657 | Processes its arguments like C<sprintf> and appends the formatted |
7658 | output to an SV. If the appended data contains "wide" characters | |
7659 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
7660 | and characters >255 formatted with %c), the original SV might get | |
7661 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. | |
7662 | C<SvSETMAGIC()> must typically be called after calling this function | |
7663 | to handle 'set' magic. | |
954c1994 | 7664 | |
d5ce4a7c | 7665 | =cut */ |
954c1994 | 7666 | |
46fc3d4c | 7667 | void |
864dbfa3 | 7668 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7669 | { |
7670 | va_list args; | |
46fc3d4c | 7671 | va_start(args, pat); |
c5be433b | 7672 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 7673 | va_end(args); |
7674 | } | |
7675 | ||
645c22ef DM |
7676 | /* backend for C<sv_catpvf> and C<catpvf_mg_nocontext> */ |
7677 | ||
ef50df4b | 7678 | void |
c5be433b GS |
7679 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
7680 | { | |
7681 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7682 | } | |
7683 | ||
954c1994 GS |
7684 | /* |
7685 | =for apidoc sv_catpvf_mg | |
7686 | ||
7687 | Like C<sv_catpvf>, but also handles 'set' magic. | |
7688 | ||
7689 | =cut | |
7690 | */ | |
7691 | ||
c5be433b | 7692 | void |
864dbfa3 | 7693 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7694 | { |
7695 | va_list args; | |
ef50df4b | 7696 | va_start(args, pat); |
c5be433b | 7697 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 7698 | va_end(args); |
c5be433b GS |
7699 | } |
7700 | ||
645c22ef DM |
7701 | /* backend for C<catpvf_mg> and C<catpvf_mg_nocontext> */ |
7702 | ||
c5be433b GS |
7703 | void |
7704 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7705 | { | |
7706 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7707 | SvSETMAGIC(sv); |
7708 | } | |
7709 | ||
954c1994 GS |
7710 | /* |
7711 | =for apidoc sv_vsetpvfn | |
7712 | ||
7713 | Works like C<vcatpvfn> but copies the text into the SV instead of | |
7714 | appending it. | |
7715 | ||
645c22ef DM |
7716 | Usually used via one of its frontends C<sv_setpvf> and C<sv_setpvf_mg>. |
7717 | ||
954c1994 GS |
7718 | =cut |
7719 | */ | |
7720 | ||
46fc3d4c | 7721 | void |
7d5ea4e7 | 7722 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7723 | { |
7724 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 7725 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 7726 | } |
7727 | ||
645c22ef DM |
7728 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
7729 | ||
2d00ba3b | 7730 | STATIC I32 |
9dd79c3f | 7731 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
7732 | { |
7733 | I32 var = 0; | |
7734 | switch (**pattern) { | |
7735 | case '1': case '2': case '3': | |
7736 | case '4': case '5': case '6': | |
7737 | case '7': case '8': case '9': | |
7738 | while (isDIGIT(**pattern)) | |
7739 | var = var * 10 + (*(*pattern)++ - '0'); | |
7740 | } | |
7741 | return var; | |
7742 | } | |
9dd79c3f | 7743 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 7744 | |
954c1994 GS |
7745 | /* |
7746 | =for apidoc sv_vcatpvfn | |
7747 | ||
7748 | Processes its arguments like C<vsprintf> and appends the formatted output | |
7749 | to an SV. Uses an array of SVs if the C style variable argument list is | |
7750 | missing (NULL). When running with taint checks enabled, indicates via | |
7751 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
7752 | locales). | |
7753 | ||
645c22ef DM |
7754 | Usually used via one of its frontends C<sv_catpvf> and C<sv_catpvf_mg>. |
7755 | ||
954c1994 GS |
7756 | =cut |
7757 | */ | |
7758 | ||
46fc3d4c | 7759 | void |
7d5ea4e7 | 7760 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7761 | { |
7762 | char *p; | |
7763 | char *q; | |
7764 | char *patend; | |
fc36a67e | 7765 | STRLEN origlen; |
46fc3d4c | 7766 | I32 svix = 0; |
c635e13b | 7767 | static char nullstr[] = "(null)"; |
9c5ffd7c | 7768 | SV *argsv = Nullsv; |
2cf2cfc6 | 7769 | bool has_utf8 = FALSE; /* has the result utf8? */ |
46fc3d4c | 7770 | |
7771 | /* no matter what, this is a string now */ | |
fc36a67e | 7772 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 7773 | |
fc36a67e | 7774 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 7775 | if (patlen == 0) |
7776 | return; | |
fc36a67e | 7777 | if (patlen == 2 && pat[0] == '%') { |
7778 | switch (pat[1]) { | |
7779 | case 's': | |
c635e13b | 7780 | if (args) { |
7781 | char *s = va_arg(*args, char*); | |
7782 | sv_catpv(sv, s ? s : nullstr); | |
7783 | } | |
7e2040f0 | 7784 | else if (svix < svmax) { |
fc36a67e | 7785 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
7786 | if (DO_UTF8(*svargs)) |
7787 | SvUTF8_on(sv); | |
7788 | } | |
fc36a67e | 7789 | return; |
7790 | case '_': | |
7791 | if (args) { | |
7e2040f0 GS |
7792 | argsv = va_arg(*args, SV*); |
7793 | sv_catsv(sv, argsv); | |
7794 | if (DO_UTF8(argsv)) | |
7795 | SvUTF8_on(sv); | |
fc36a67e | 7796 | return; |
7797 | } | |
7798 | /* See comment on '_' below */ | |
7799 | break; | |
7800 | } | |
46fc3d4c | 7801 | } |
7802 | ||
2cf2cfc6 A |
7803 | if (!args && svix < svmax && DO_UTF8(*svargs)) |
7804 | has_utf8 = TRUE; | |
7805 | ||
46fc3d4c | 7806 | patend = (char*)pat + patlen; |
7807 | for (p = (char*)pat; p < patend; p = q) { | |
7808 | bool alt = FALSE; | |
7809 | bool left = FALSE; | |
b22c7a20 | 7810 | bool vectorize = FALSE; |
211dfcf1 | 7811 | bool vectorarg = FALSE; |
2cf2cfc6 | 7812 | bool vec_utf8 = FALSE; |
46fc3d4c | 7813 | char fill = ' '; |
7814 | char plus = 0; | |
7815 | char intsize = 0; | |
7816 | STRLEN width = 0; | |
fc36a67e | 7817 | STRLEN zeros = 0; |
46fc3d4c | 7818 | bool has_precis = FALSE; |
7819 | STRLEN precis = 0; | |
2cf2cfc6 | 7820 | bool is_utf8 = FALSE; /* is this item utf8? */ |
eb3fce90 | 7821 | |
46fc3d4c | 7822 | char esignbuf[4]; |
ad391ad9 | 7823 | U8 utf8buf[UTF8_MAXLEN+1]; |
46fc3d4c | 7824 | STRLEN esignlen = 0; |
7825 | ||
7826 | char *eptr = Nullch; | |
fc36a67e | 7827 | STRLEN elen = 0; |
089c015b JH |
7828 | /* Times 4: a decimal digit takes more than 3 binary digits. |
7829 | * NV_DIG: mantissa takes than many decimal digits. | |
7830 | * Plus 32: Playing safe. */ | |
7831 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
2d4389e4 JH |
7832 | /* large enough for "%#.#f" --chip */ |
7833 | /* what about long double NVs? --jhi */ | |
b22c7a20 GS |
7834 | |
7835 | SV *vecsv; | |
a05b299f | 7836 | U8 *vecstr = Null(U8*); |
b22c7a20 | 7837 | STRLEN veclen = 0; |
46fc3d4c | 7838 | char c; |
7839 | int i; | |
9c5ffd7c | 7840 | unsigned base = 0; |
8c8eb53c RB |
7841 | IV iv = 0; |
7842 | UV uv = 0; | |
65202027 | 7843 | NV nv; |
46fc3d4c | 7844 | STRLEN have; |
7845 | STRLEN need; | |
7846 | STRLEN gap; | |
b22c7a20 GS |
7847 | char *dotstr = "."; |
7848 | STRLEN dotstrlen = 1; | |
211dfcf1 | 7849 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 7850 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
7851 | I32 epix = 0; /* explicit precision index */ |
7852 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 7853 | bool asterisk = FALSE; |
46fc3d4c | 7854 | |
211dfcf1 | 7855 | /* echo everything up to the next format specification */ |
46fc3d4c | 7856 | for (q = p; q < patend && *q != '%'; ++q) ; |
7857 | if (q > p) { | |
7858 | sv_catpvn(sv, p, q - p); | |
7859 | p = q; | |
7860 | } | |
7861 | if (q++ >= patend) | |
7862 | break; | |
7863 | ||
211dfcf1 HS |
7864 | /* |
7865 | We allow format specification elements in this order: | |
7866 | \d+\$ explicit format parameter index | |
7867 | [-+ 0#]+ flags | |
7868 | \*?(\d+\$)?v vector with optional (optionally specified) arg | |
7869 | \d+|\*(\d+\$)? width using optional (optionally specified) arg | |
7870 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
7871 | [hlqLV] size | |
7872 | [%bcdefginopsux_DFOUX] format (mandatory) | |
7873 | */ | |
7874 | if (EXPECT_NUMBER(q, width)) { | |
7875 | if (*q == '$') { | |
7876 | ++q; | |
7877 | efix = width; | |
7878 | } else { | |
7879 | goto gotwidth; | |
7880 | } | |
7881 | } | |
7882 | ||
fc36a67e | 7883 | /* FLAGS */ |
7884 | ||
46fc3d4c | 7885 | while (*q) { |
7886 | switch (*q) { | |
7887 | case ' ': | |
7888 | case '+': | |
7889 | plus = *q++; | |
7890 | continue; | |
7891 | ||
7892 | case '-': | |
7893 | left = TRUE; | |
7894 | q++; | |
7895 | continue; | |
7896 | ||
7897 | case '0': | |
7898 | fill = *q++; | |
7899 | continue; | |
7900 | ||
7901 | case '#': | |
7902 | alt = TRUE; | |
7903 | q++; | |
7904 | continue; | |
7905 | ||
fc36a67e | 7906 | default: |
7907 | break; | |
7908 | } | |
7909 | break; | |
7910 | } | |
46fc3d4c | 7911 | |
211dfcf1 | 7912 | tryasterisk: |
eb3fce90 | 7913 | if (*q == '*') { |
211dfcf1 HS |
7914 | q++; |
7915 | if (EXPECT_NUMBER(q, ewix)) | |
7916 | if (*q++ != '$') | |
7917 | goto unknown; | |
eb3fce90 | 7918 | asterisk = TRUE; |
211dfcf1 HS |
7919 | } |
7920 | if (*q == 'v') { | |
eb3fce90 | 7921 | q++; |
211dfcf1 HS |
7922 | if (vectorize) |
7923 | goto unknown; | |
9cbac4c7 | 7924 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
7925 | evix = ewix; |
7926 | ewix = 0; | |
7927 | asterisk = FALSE; | |
7928 | } | |
7929 | vectorize = TRUE; | |
7930 | goto tryasterisk; | |
eb3fce90 JH |
7931 | } |
7932 | ||
211dfcf1 HS |
7933 | if (!asterisk) |
7934 | EXPECT_NUMBER(q, width); | |
7935 | ||
7936 | if (vectorize) { | |
7937 | if (vectorarg) { | |
7938 | if (args) | |
7939 | vecsv = va_arg(*args, SV*); | |
7940 | else | |
7941 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
7942 | svargs[ewix ? ewix-1 : svix++] : &PL_sv_undef; | |
4459522c | 7943 | dotstr = SvPVx(vecsv, dotstrlen); |
211dfcf1 | 7944 | if (DO_UTF8(vecsv)) |
2cf2cfc6 | 7945 | is_utf8 = TRUE; |
211dfcf1 HS |
7946 | } |
7947 | if (args) { | |
7948 | vecsv = va_arg(*args, SV*); | |
7949 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 7950 | vec_utf8 = DO_UTF8(vecsv); |
eb3fce90 | 7951 | } |
211dfcf1 HS |
7952 | else if (efix ? efix <= svmax : svix < svmax) { |
7953 | vecsv = svargs[efix ? efix-1 : svix++]; | |
7954 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 7955 | vec_utf8 = DO_UTF8(vecsv); |
211dfcf1 HS |
7956 | } |
7957 | else { | |
7958 | vecstr = (U8*)""; | |
7959 | veclen = 0; | |
7960 | } | |
eb3fce90 | 7961 | } |
fc36a67e | 7962 | |
eb3fce90 | 7963 | if (asterisk) { |
fc36a67e | 7964 | if (args) |
7965 | i = va_arg(*args, int); | |
7966 | else | |
eb3fce90 JH |
7967 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
7968 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7969 | left |= (i < 0); |
7970 | width = (i < 0) ? -i : i; | |
fc36a67e | 7971 | } |
211dfcf1 | 7972 | gotwidth: |
fc36a67e | 7973 | |
7974 | /* PRECISION */ | |
46fc3d4c | 7975 | |
fc36a67e | 7976 | if (*q == '.') { |
7977 | q++; | |
7978 | if (*q == '*') { | |
211dfcf1 | 7979 | q++; |
497b47a8 | 7980 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') /* epix currently unused */ |
211dfcf1 | 7981 | goto unknown; |
46fc3d4c | 7982 | if (args) |
7983 | i = va_arg(*args, int); | |
7984 | else | |
eb3fce90 JH |
7985 | i = (ewix ? ewix <= svmax : svix < svmax) |
7986 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7987 | precis = (i < 0) ? 0 : i; |
fc36a67e | 7988 | } |
7989 | else { | |
7990 | precis = 0; | |
7991 | while (isDIGIT(*q)) | |
7992 | precis = precis * 10 + (*q++ - '0'); | |
7993 | } | |
7994 | has_precis = TRUE; | |
7995 | } | |
46fc3d4c | 7996 | |
fc36a67e | 7997 | /* SIZE */ |
46fc3d4c | 7998 | |
fc36a67e | 7999 | switch (*q) { |
e5c81feb | 8000 | #if defined(HAS_QUAD) || (defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)) |
6f9bb7fd | 8001 | case 'L': /* Ld */ |
e5c81feb JH |
8002 | /* FALL THROUGH */ |
8003 | #endif | |
8004 | #ifdef HAS_QUAD | |
6f9bb7fd GS |
8005 | case 'q': /* qd */ |
8006 | intsize = 'q'; | |
8007 | q++; | |
8008 | break; | |
8009 | #endif | |
fc36a67e | 8010 | case 'l': |
e5c81feb JH |
8011 | #if defined(HAS_QUAD) || (defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)) |
8012 | if (*(q + 1) == 'l') { /* lld, llf */ | |
fc36a67e | 8013 | intsize = 'q'; |
8014 | q += 2; | |
46fc3d4c | 8015 | break; |
cf2093f6 | 8016 | } |
fc36a67e | 8017 | #endif |
6f9bb7fd | 8018 | /* FALL THROUGH */ |
fc36a67e | 8019 | case 'h': |
cf2093f6 | 8020 | /* FALL THROUGH */ |
fc36a67e | 8021 | case 'V': |
8022 | intsize = *q++; | |
46fc3d4c | 8023 | break; |
8024 | } | |
8025 | ||
fc36a67e | 8026 | /* CONVERSION */ |
8027 | ||
211dfcf1 HS |
8028 | if (*q == '%') { |
8029 | eptr = q++; | |
8030 | elen = 1; | |
8031 | goto string; | |
8032 | } | |
8033 | ||
8034 | if (!args) | |
8035 | argsv = (efix ? efix <= svmax : svix < svmax) ? | |
8036 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
8037 | ||
46fc3d4c | 8038 | switch (c = *q++) { |
8039 | ||
8040 | /* STRINGS */ | |
8041 | ||
46fc3d4c | 8042 | case 'c': |
211dfcf1 | 8043 | uv = args ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
8044 | if ((uv > 255 || |
8045 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 8046 | && !IN_BYTES) { |
dfe13c55 | 8047 | eptr = (char*)utf8buf; |
9041c2e3 | 8048 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
2cf2cfc6 | 8049 | is_utf8 = TRUE; |
7e2040f0 GS |
8050 | } |
8051 | else { | |
8052 | c = (char)uv; | |
8053 | eptr = &c; | |
8054 | elen = 1; | |
a0ed51b3 | 8055 | } |
46fc3d4c | 8056 | goto string; |
8057 | ||
46fc3d4c | 8058 | case 's': |
8059 | if (args) { | |
fc36a67e | 8060 | eptr = va_arg(*args, char*); |
c635e13b | 8061 | if (eptr) |
1d7c1841 GS |
8062 | #ifdef MACOS_TRADITIONAL |
8063 | /* On MacOS, %#s format is used for Pascal strings */ | |
8064 | if (alt) | |
8065 | elen = *eptr++; | |
8066 | else | |
8067 | #endif | |
c635e13b | 8068 | elen = strlen(eptr); |
8069 | else { | |
8070 | eptr = nullstr; | |
8071 | elen = sizeof nullstr - 1; | |
8072 | } | |
46fc3d4c | 8073 | } |
211dfcf1 | 8074 | else { |
7e2040f0 GS |
8075 | eptr = SvPVx(argsv, elen); |
8076 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
8077 | if (has_precis && precis < elen) { |
8078 | I32 p = precis; | |
7e2040f0 | 8079 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
8080 | precis = p; |
8081 | } | |
8082 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 8083 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 8084 | } |
2cf2cfc6 | 8085 | is_utf8 = TRUE; |
a0ed51b3 LW |
8086 | } |
8087 | } | |
46fc3d4c | 8088 | goto string; |
8089 | ||
fc36a67e | 8090 | case '_': |
8091 | /* | |
8092 | * The "%_" hack might have to be changed someday, | |
8093 | * if ISO or ANSI decide to use '_' for something. | |
8094 | * So we keep it hidden from users' code. | |
8095 | */ | |
8096 | if (!args) | |
8097 | goto unknown; | |
211dfcf1 | 8098 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
8099 | eptr = SvPVx(argsv, elen); |
8100 | if (DO_UTF8(argsv)) | |
2cf2cfc6 | 8101 | is_utf8 = TRUE; |
fc36a67e | 8102 | |
46fc3d4c | 8103 | string: |
b22c7a20 | 8104 | vectorize = FALSE; |
46fc3d4c | 8105 | if (has_precis && elen > precis) |
8106 | elen = precis; | |
8107 | break; | |
8108 | ||
8109 | /* INTEGERS */ | |
8110 | ||
fc36a67e | 8111 | case 'p': |
c2e66d9e GS |
8112 | if (alt) |
8113 | goto unknown; | |
211dfcf1 | 8114 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 8115 | base = 16; |
8116 | goto integer; | |
8117 | ||
46fc3d4c | 8118 | case 'D': |
29fe7a80 | 8119 | #ifdef IV_IS_QUAD |
22f3ae8c | 8120 | intsize = 'q'; |
29fe7a80 | 8121 | #else |
46fc3d4c | 8122 | intsize = 'l'; |
29fe7a80 | 8123 | #endif |
46fc3d4c | 8124 | /* FALL THROUGH */ |
8125 | case 'd': | |
8126 | case 'i': | |
b22c7a20 | 8127 | if (vectorize) { |
ba210ebe | 8128 | STRLEN ulen; |
211dfcf1 HS |
8129 | if (!veclen) |
8130 | continue; | |
2cf2cfc6 A |
8131 | if (vec_utf8) |
8132 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
8133 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 8134 | else { |
e83d50c9 | 8135 | uv = *vecstr; |
b22c7a20 GS |
8136 | ulen = 1; |
8137 | } | |
8138 | vecstr += ulen; | |
8139 | veclen -= ulen; | |
e83d50c9 JP |
8140 | if (plus) |
8141 | esignbuf[esignlen++] = plus; | |
b22c7a20 GS |
8142 | } |
8143 | else if (args) { | |
46fc3d4c | 8144 | switch (intsize) { |
8145 | case 'h': iv = (short)va_arg(*args, int); break; | |
8146 | default: iv = va_arg(*args, int); break; | |
8147 | case 'l': iv = va_arg(*args, long); break; | |
fc36a67e | 8148 | case 'V': iv = va_arg(*args, IV); break; |
cf2093f6 JH |
8149 | #ifdef HAS_QUAD |
8150 | case 'q': iv = va_arg(*args, Quad_t); break; | |
8151 | #endif | |
46fc3d4c | 8152 | } |
8153 | } | |
8154 | else { | |
211dfcf1 | 8155 | iv = SvIVx(argsv); |
46fc3d4c | 8156 | switch (intsize) { |
8157 | case 'h': iv = (short)iv; break; | |
be28567c | 8158 | default: break; |
46fc3d4c | 8159 | case 'l': iv = (long)iv; break; |
fc36a67e | 8160 | case 'V': break; |
cf2093f6 JH |
8161 | #ifdef HAS_QUAD |
8162 | case 'q': iv = (Quad_t)iv; break; | |
8163 | #endif | |
46fc3d4c | 8164 | } |
8165 | } | |
e83d50c9 JP |
8166 | if ( !vectorize ) /* we already set uv above */ |
8167 | { | |
8168 | if (iv >= 0) { | |
8169 | uv = iv; | |
8170 | if (plus) | |
8171 | esignbuf[esignlen++] = plus; | |
8172 | } | |
8173 | else { | |
8174 | uv = -iv; | |
8175 | esignbuf[esignlen++] = '-'; | |
8176 | } | |
46fc3d4c | 8177 | } |
8178 | base = 10; | |
8179 | goto integer; | |
8180 | ||
fc36a67e | 8181 | case 'U': |
29fe7a80 | 8182 | #ifdef IV_IS_QUAD |
22f3ae8c | 8183 | intsize = 'q'; |
29fe7a80 | 8184 | #else |
fc36a67e | 8185 | intsize = 'l'; |
29fe7a80 | 8186 | #endif |
fc36a67e | 8187 | /* FALL THROUGH */ |
8188 | case 'u': | |
8189 | base = 10; | |
8190 | goto uns_integer; | |
8191 | ||
4f19785b WSI |
8192 | case 'b': |
8193 | base = 2; | |
8194 | goto uns_integer; | |
8195 | ||
46fc3d4c | 8196 | case 'O': |
29fe7a80 | 8197 | #ifdef IV_IS_QUAD |
22f3ae8c | 8198 | intsize = 'q'; |
29fe7a80 | 8199 | #else |
46fc3d4c | 8200 | intsize = 'l'; |
29fe7a80 | 8201 | #endif |
46fc3d4c | 8202 | /* FALL THROUGH */ |
8203 | case 'o': | |
8204 | base = 8; | |
8205 | goto uns_integer; | |
8206 | ||
8207 | case 'X': | |
46fc3d4c | 8208 | case 'x': |
8209 | base = 16; | |
46fc3d4c | 8210 | |
8211 | uns_integer: | |
b22c7a20 | 8212 | if (vectorize) { |
ba210ebe | 8213 | STRLEN ulen; |
b22c7a20 | 8214 | vector: |
211dfcf1 HS |
8215 | if (!veclen) |
8216 | continue; | |
2cf2cfc6 A |
8217 | if (vec_utf8) |
8218 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
8219 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 8220 | else { |
a05b299f | 8221 | uv = *vecstr; |
b22c7a20 GS |
8222 | ulen = 1; |
8223 | } | |
8224 | vecstr += ulen; | |
8225 | veclen -= ulen; | |
8226 | } | |
8227 | else if (args) { | |
46fc3d4c | 8228 | switch (intsize) { |
8229 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
8230 | default: uv = va_arg(*args, unsigned); break; | |
8231 | case 'l': uv = va_arg(*args, unsigned long); break; | |
fc36a67e | 8232 | case 'V': uv = va_arg(*args, UV); break; |
cf2093f6 JH |
8233 | #ifdef HAS_QUAD |
8234 | case 'q': uv = va_arg(*args, Quad_t); break; | |
8235 | #endif | |
46fc3d4c | 8236 | } |
8237 | } | |
8238 | else { | |
211dfcf1 | 8239 | uv = SvUVx(argsv); |
46fc3d4c | 8240 | switch (intsize) { |
8241 | case 'h': uv = (unsigned short)uv; break; | |
be28567c | 8242 | default: break; |
46fc3d4c | 8243 | case 'l': uv = (unsigned long)uv; break; |
fc36a67e | 8244 | case 'V': break; |
cf2093f6 JH |
8245 | #ifdef HAS_QUAD |
8246 | case 'q': uv = (Quad_t)uv; break; | |
8247 | #endif | |
46fc3d4c | 8248 | } |
8249 | } | |
8250 | ||
8251 | integer: | |
46fc3d4c | 8252 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 8253 | switch (base) { |
8254 | unsigned dig; | |
8255 | case 16: | |
c10ed8b9 HS |
8256 | if (!uv) |
8257 | alt = FALSE; | |
1d7c1841 GS |
8258 | p = (char*)((c == 'X') |
8259 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 8260 | do { |
8261 | dig = uv & 15; | |
8262 | *--eptr = p[dig]; | |
8263 | } while (uv >>= 4); | |
8264 | if (alt) { | |
46fc3d4c | 8265 | esignbuf[esignlen++] = '0'; |
fc36a67e | 8266 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 8267 | } |
fc36a67e | 8268 | break; |
8269 | case 8: | |
8270 | do { | |
8271 | dig = uv & 7; | |
8272 | *--eptr = '0' + dig; | |
8273 | } while (uv >>= 3); | |
8274 | if (alt && *eptr != '0') | |
8275 | *--eptr = '0'; | |
8276 | break; | |
4f19785b WSI |
8277 | case 2: |
8278 | do { | |
8279 | dig = uv & 1; | |
8280 | *--eptr = '0' + dig; | |
8281 | } while (uv >>= 1); | |
eda88b6d JH |
8282 | if (alt) { |
8283 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 8284 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 8285 | } |
4f19785b | 8286 | break; |
fc36a67e | 8287 | default: /* it had better be ten or less */ |
6bc102ca | 8288 | #if defined(PERL_Y2KWARN) |
e476b1b5 | 8289 | if (ckWARN(WARN_Y2K)) { |
6bc102ca GS |
8290 | STRLEN n; |
8291 | char *s = SvPV(sv,n); | |
8292 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
8293 | && (n == 2 || !isDIGIT(s[n-3]))) | |
8294 | { | |
9014280d | 8295 | Perl_warner(aTHX_ packWARN(WARN_Y2K), |
6bc102ca GS |
8296 | "Possible Y2K bug: %%%c %s", |
8297 | c, "format string following '19'"); | |
8298 | } | |
8299 | } | |
8300 | #endif | |
fc36a67e | 8301 | do { |
8302 | dig = uv % base; | |
8303 | *--eptr = '0' + dig; | |
8304 | } while (uv /= base); | |
8305 | break; | |
46fc3d4c | 8306 | } |
8307 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
8308 | if (has_precis) { |
8309 | if (precis > elen) | |
8310 | zeros = precis - elen; | |
8311 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
8312 | elen = 0; | |
8313 | } | |
46fc3d4c | 8314 | break; |
8315 | ||
8316 | /* FLOATING POINT */ | |
8317 | ||
fc36a67e | 8318 | case 'F': |
8319 | c = 'f'; /* maybe %F isn't supported here */ | |
8320 | /* FALL THROUGH */ | |
46fc3d4c | 8321 | case 'e': case 'E': |
fc36a67e | 8322 | case 'f': |
46fc3d4c | 8323 | case 'g': case 'G': |
8324 | ||
8325 | /* This is evil, but floating point is even more evil */ | |
8326 | ||
b22c7a20 | 8327 | vectorize = FALSE; |
211dfcf1 | 8328 | nv = args ? va_arg(*args, NV) : SvNVx(argsv); |
fc36a67e | 8329 | |
8330 | need = 0; | |
8331 | if (c != 'e' && c != 'E') { | |
8332 | i = PERL_INT_MIN; | |
73b309ea | 8333 | (void)Perl_frexp(nv, &i); |
fc36a67e | 8334 | if (i == PERL_INT_MIN) |
cea2e8a9 | 8335 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 8336 | if (i > 0) |
fc36a67e | 8337 | need = BIT_DIGITS(i); |
8338 | } | |
8339 | need += has_precis ? precis : 6; /* known default */ | |
8340 | if (need < width) | |
8341 | need = width; | |
8342 | ||
46fc3d4c | 8343 | need += 20; /* fudge factor */ |
80252599 GS |
8344 | if (PL_efloatsize < need) { |
8345 | Safefree(PL_efloatbuf); | |
8346 | PL_efloatsize = need + 20; /* more fudge */ | |
8347 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 8348 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 8349 | } |
8350 | ||
8351 | eptr = ebuf + sizeof ebuf; | |
8352 | *--eptr = '\0'; | |
8353 | *--eptr = c; | |
e5c81feb | 8354 | #if defined(USE_LONG_DOUBLE) && defined(PERL_PRIfldbl) |
cf2093f6 | 8355 | { |
e5c81feb JH |
8356 | /* Copy the one or more characters in a long double |
8357 | * format before the 'base' ([efgEFG]) character to | |
8358 | * the format string. */ | |
8359 | static char const prifldbl[] = PERL_PRIfldbl; | |
8360 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
8361 | while (p >= prifldbl) { *--eptr = *p--; } | |
cf2093f6 | 8362 | } |
65202027 | 8363 | #endif |
46fc3d4c | 8364 | if (has_precis) { |
8365 | base = precis; | |
8366 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8367 | *--eptr = '.'; | |
8368 | } | |
8369 | if (width) { | |
8370 | base = width; | |
8371 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8372 | } | |
8373 | if (fill == '0') | |
8374 | *--eptr = fill; | |
84902520 TB |
8375 | if (left) |
8376 | *--eptr = '-'; | |
46fc3d4c | 8377 | if (plus) |
8378 | *--eptr = plus; | |
8379 | if (alt) | |
8380 | *--eptr = '#'; | |
8381 | *--eptr = '%'; | |
8382 | ||
ff9121f8 JH |
8383 | /* No taint. Otherwise we are in the strange situation |
8384 | * where printf() taints but print($float) doesn't. | |
bda0f7a5 | 8385 | * --jhi */ |
dd8482fc | 8386 | (void)sprintf(PL_efloatbuf, eptr, nv); |
8af02333 | 8387 | |
80252599 GS |
8388 | eptr = PL_efloatbuf; |
8389 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 8390 | break; |
8391 | ||
fc36a67e | 8392 | /* SPECIAL */ |
8393 | ||
8394 | case 'n': | |
b22c7a20 | 8395 | vectorize = FALSE; |
fc36a67e | 8396 | i = SvCUR(sv) - origlen; |
8397 | if (args) { | |
c635e13b | 8398 | switch (intsize) { |
8399 | case 'h': *(va_arg(*args, short*)) = i; break; | |
8400 | default: *(va_arg(*args, int*)) = i; break; | |
8401 | case 'l': *(va_arg(*args, long*)) = i; break; | |
8402 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
8403 | #ifdef HAS_QUAD |
8404 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
8405 | #endif | |
c635e13b | 8406 | } |
fc36a67e | 8407 | } |
9dd79c3f | 8408 | else |
211dfcf1 | 8409 | sv_setuv_mg(argsv, (UV)i); |
fc36a67e | 8410 | continue; /* not "break" */ |
8411 | ||
8412 | /* UNKNOWN */ | |
8413 | ||
46fc3d4c | 8414 | default: |
fc36a67e | 8415 | unknown: |
b22c7a20 | 8416 | vectorize = FALSE; |
599cee73 | 8417 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 8418 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 8419 | SV *msg = sv_newmortal(); |
cea2e8a9 | 8420 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ", |
533c011a | 8421 | (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); |
0f4b6630 | 8422 | if (c) { |
0f4b6630 | 8423 | if (isPRINT(c)) |
1c846c1f | 8424 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
8425 | "\"%%%c\"", c & 0xFF); |
8426 | else | |
8427 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 8428 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 8429 | (UV)c & 0xFF); |
0f4b6630 | 8430 | } else |
c635e13b | 8431 | sv_catpv(msg, "end of string"); |
9014280d | 8432 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 8433 | } |
fb73857a | 8434 | |
8435 | /* output mangled stuff ... */ | |
8436 | if (c == '\0') | |
8437 | --q; | |
46fc3d4c | 8438 | eptr = p; |
8439 | elen = q - p; | |
fb73857a | 8440 | |
8441 | /* ... right here, because formatting flags should not apply */ | |
8442 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8443 | p = SvEND(sv); | |
4459522c | 8444 | Copy(eptr, p, elen, char); |
fb73857a | 8445 | p += elen; |
8446 | *p = '\0'; | |
8447 | SvCUR(sv) = p - SvPVX(sv); | |
8448 | continue; /* not "break" */ | |
46fc3d4c | 8449 | } |
8450 | ||
d2876be5 JH |
8451 | if (is_utf8 != has_utf8) { |
8452 | if (is_utf8) { | |
8453 | if (SvCUR(sv)) | |
8454 | sv_utf8_upgrade(sv); | |
8455 | } | |
8456 | else { | |
8457 | SV *nsv = sv_2mortal(newSVpvn(eptr, elen)); | |
8458 | sv_utf8_upgrade(nsv); | |
8459 | eptr = SvPVX(nsv); | |
8460 | elen = SvCUR(nsv); | |
8461 | } | |
8462 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8463 | p = SvEND(sv); | |
8464 | *p = '\0'; | |
8465 | } | |
8466 | ||
fc36a67e | 8467 | have = esignlen + zeros + elen; |
46fc3d4c | 8468 | need = (have > width ? have : width); |
8469 | gap = need - have; | |
8470 | ||
b22c7a20 | 8471 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 8472 | p = SvEND(sv); |
8473 | if (esignlen && fill == '0') { | |
8474 | for (i = 0; i < esignlen; i++) | |
8475 | *p++ = esignbuf[i]; | |
8476 | } | |
8477 | if (gap && !left) { | |
8478 | memset(p, fill, gap); | |
8479 | p += gap; | |
8480 | } | |
8481 | if (esignlen && fill != '0') { | |
8482 | for (i = 0; i < esignlen; i++) | |
8483 | *p++ = esignbuf[i]; | |
8484 | } | |
fc36a67e | 8485 | if (zeros) { |
8486 | for (i = zeros; i; i--) | |
8487 | *p++ = '0'; | |
8488 | } | |
46fc3d4c | 8489 | if (elen) { |
4459522c | 8490 | Copy(eptr, p, elen, char); |
46fc3d4c | 8491 | p += elen; |
8492 | } | |
8493 | if (gap && left) { | |
8494 | memset(p, ' ', gap); | |
8495 | p += gap; | |
8496 | } | |
b22c7a20 GS |
8497 | if (vectorize) { |
8498 | if (veclen) { | |
4459522c | 8499 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
8500 | p += dotstrlen; |
8501 | } | |
8502 | else | |
8503 | vectorize = FALSE; /* done iterating over vecstr */ | |
8504 | } | |
2cf2cfc6 A |
8505 | if (is_utf8) |
8506 | has_utf8 = TRUE; | |
8507 | if (has_utf8) | |
7e2040f0 | 8508 | SvUTF8_on(sv); |
46fc3d4c | 8509 | *p = '\0'; |
8510 | SvCUR(sv) = p - SvPVX(sv); | |
b22c7a20 GS |
8511 | if (vectorize) { |
8512 | esignlen = 0; | |
8513 | goto vector; | |
8514 | } | |
46fc3d4c | 8515 | } |
8516 | } | |
51371543 | 8517 | |
645c22ef DM |
8518 | /* ========================================================================= |
8519 | ||
8520 | =head1 Cloning an interpreter | |
8521 | ||
8522 | All the macros and functions in this section are for the private use of | |
8523 | the main function, perl_clone(). | |
8524 | ||
8525 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
8526 | During the course of a cloning, a hash table is used to map old addresses | |
8527 | to new addresses. The table is created and manipulated with the | |
8528 | ptr_table_* functions. | |
8529 | ||
8530 | =cut | |
8531 | ||
8532 | ============================================================================*/ | |
8533 | ||
8534 | ||
1d7c1841 GS |
8535 | #if defined(USE_ITHREADS) |
8536 | ||
4d1ff10f AB |
8537 | #if defined(USE_5005THREADS) |
8538 | # include "error: USE_5005THREADS and USE_ITHREADS are incompatible" | |
1d7c1841 GS |
8539 | #endif |
8540 | ||
1d7c1841 GS |
8541 | #ifndef GpREFCNT_inc |
8542 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
8543 | #endif | |
8544 | ||
8545 | ||
d2d73c3e AB |
8546 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
8547 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
8548 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8549 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
8550 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8551 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
8552 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8553 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
8554 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8555 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
8556 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
8557 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
8558 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
8cf8f3d1 | 8559 | |
d2d73c3e | 8560 | |
d2f185dc AMS |
8561 | /* Duplicate a regexp. Required reading: pregcomp() and pregfree() in |
8562 | regcomp.c. AMS 20010712 */ | |
645c22ef | 8563 | |
1d7c1841 | 8564 | REGEXP * |
a8fc9800 | 8565 | Perl_re_dup(pTHX_ REGEXP *r, CLONE_PARAMS *param) |
1d7c1841 | 8566 | { |
d2f185dc AMS |
8567 | REGEXP *ret; |
8568 | int i, len, npar; | |
8569 | struct reg_substr_datum *s; | |
8570 | ||
8571 | if (!r) | |
8572 | return (REGEXP *)NULL; | |
8573 | ||
8574 | if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) | |
8575 | return ret; | |
8576 | ||
8577 | len = r->offsets[0]; | |
8578 | npar = r->nparens+1; | |
8579 | ||
8580 | Newc(0, ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); | |
8581 | Copy(r->program, ret->program, len+1, regnode); | |
8582 | ||
8583 | New(0, ret->startp, npar, I32); | |
8584 | Copy(r->startp, ret->startp, npar, I32); | |
8585 | New(0, ret->endp, npar, I32); | |
8586 | Copy(r->startp, ret->startp, npar, I32); | |
8587 | ||
d2f185dc AMS |
8588 | New(0, ret->substrs, 1, struct reg_substr_data); |
8589 | for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { | |
8590 | s->min_offset = r->substrs->data[i].min_offset; | |
8591 | s->max_offset = r->substrs->data[i].max_offset; | |
8592 | s->substr = sv_dup_inc(r->substrs->data[i].substr, param); | |
8593 | } | |
8594 | ||
70612e96 | 8595 | ret->regstclass = NULL; |
d2f185dc AMS |
8596 | if (r->data) { |
8597 | struct reg_data *d; | |
8598 | int count = r->data->count; | |
8599 | ||
8600 | Newc(0, d, sizeof(struct reg_data) + count*sizeof(void *), | |
8601 | char, struct reg_data); | |
8602 | New(0, d->what, count, U8); | |
8603 | ||
8604 | d->count = count; | |
8605 | for (i = 0; i < count; i++) { | |
8606 | d->what[i] = r->data->what[i]; | |
8607 | switch (d->what[i]) { | |
8608 | case 's': | |
8609 | d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); | |
8610 | break; | |
8611 | case 'p': | |
8612 | d->data[i] = av_dup_inc((AV *)r->data->data[i], param); | |
8613 | break; | |
8614 | case 'f': | |
8615 | /* This is cheating. */ | |
8616 | New(0, d->data[i], 1, struct regnode_charclass_class); | |
8617 | StructCopy(r->data->data[i], d->data[i], | |
8618 | struct regnode_charclass_class); | |
70612e96 | 8619 | ret->regstclass = (regnode*)d->data[i]; |
d2f185dc AMS |
8620 | break; |
8621 | case 'o': | |
33773810 AMS |
8622 | /* Compiled op trees are readonly, and can thus be |
8623 | shared without duplication. */ | |
9b978d73 DM |
8624 | d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); |
8625 | break; | |
d2f185dc AMS |
8626 | case 'n': |
8627 | d->data[i] = r->data->data[i]; | |
8628 | break; | |
8629 | } | |
8630 | } | |
8631 | ||
8632 | ret->data = d; | |
8633 | } | |
8634 | else | |
8635 | ret->data = NULL; | |
8636 | ||
8637 | New(0, ret->offsets, 2*len+1, U32); | |
8638 | Copy(r->offsets, ret->offsets, 2*len+1, U32); | |
8639 | ||
8640 | ret->precomp = SAVEPV(r->precomp); | |
d2f185dc AMS |
8641 | ret->refcnt = r->refcnt; |
8642 | ret->minlen = r->minlen; | |
8643 | ret->prelen = r->prelen; | |
8644 | ret->nparens = r->nparens; | |
8645 | ret->lastparen = r->lastparen; | |
8646 | ret->lastcloseparen = r->lastcloseparen; | |
8647 | ret->reganch = r->reganch; | |
8648 | ||
70612e96 RG |
8649 | ret->sublen = r->sublen; |
8650 | ||
8651 | if (RX_MATCH_COPIED(ret)) | |
8652 | ret->subbeg = SAVEPV(r->subbeg); | |
8653 | else | |
8654 | ret->subbeg = Nullch; | |
8655 | ||
d2f185dc AMS |
8656 | ptr_table_store(PL_ptr_table, r, ret); |
8657 | return ret; | |
1d7c1841 GS |
8658 | } |
8659 | ||
d2d73c3e | 8660 | /* duplicate a file handle */ |
645c22ef | 8661 | |
1d7c1841 | 8662 | PerlIO * |
a8fc9800 | 8663 | Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) |
1d7c1841 GS |
8664 | { |
8665 | PerlIO *ret; | |
8666 | if (!fp) | |
8667 | return (PerlIO*)NULL; | |
8668 | ||
8669 | /* look for it in the table first */ | |
8670 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
8671 | if (ret) | |
8672 | return ret; | |
8673 | ||
8674 | /* create anew and remember what it is */ | |
ecdeb87c | 8675 | ret = PerlIO_fdupopen(aTHX_ fp, param, PERLIO_DUP_CLONE); |
1d7c1841 GS |
8676 | ptr_table_store(PL_ptr_table, fp, ret); |
8677 | return ret; | |
8678 | } | |
8679 | ||
645c22ef DM |
8680 | /* duplicate a directory handle */ |
8681 | ||
1d7c1841 GS |
8682 | DIR * |
8683 | Perl_dirp_dup(pTHX_ DIR *dp) | |
8684 | { | |
8685 | if (!dp) | |
8686 | return (DIR*)NULL; | |
8687 | /* XXX TODO */ | |
8688 | return dp; | |
8689 | } | |
8690 | ||
ff276b08 | 8691 | /* duplicate a typeglob */ |
645c22ef | 8692 | |
1d7c1841 | 8693 | GP * |
a8fc9800 | 8694 | Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) |
1d7c1841 GS |
8695 | { |
8696 | GP *ret; | |
8697 | if (!gp) | |
8698 | return (GP*)NULL; | |
8699 | /* look for it in the table first */ | |
8700 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
8701 | if (ret) | |
8702 | return ret; | |
8703 | ||
8704 | /* create anew and remember what it is */ | |
8705 | Newz(0, ret, 1, GP); | |
8706 | ptr_table_store(PL_ptr_table, gp, ret); | |
8707 | ||
8708 | /* clone */ | |
8709 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
8710 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
8711 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
8712 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
8713 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
8714 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
8715 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
8716 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
8717 | ret->gp_cvgen = gp->gp_cvgen; |
8718 | ret->gp_flags = gp->gp_flags; | |
8719 | ret->gp_line = gp->gp_line; | |
8720 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
8721 | return ret; | |
8722 | } | |
8723 | ||
645c22ef DM |
8724 | /* duplicate a chain of magic */ |
8725 | ||
1d7c1841 | 8726 | MAGIC * |
a8fc9800 | 8727 | Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS* param) |
1d7c1841 | 8728 | { |
cb359b41 JH |
8729 | MAGIC *mgprev = (MAGIC*)NULL; |
8730 | MAGIC *mgret; | |
1d7c1841 GS |
8731 | if (!mg) |
8732 | return (MAGIC*)NULL; | |
8733 | /* look for it in the table first */ | |
8734 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
8735 | if (mgret) | |
8736 | return mgret; | |
8737 | ||
8738 | for (; mg; mg = mg->mg_moremagic) { | |
8739 | MAGIC *nmg; | |
8740 | Newz(0, nmg, 1, MAGIC); | |
cb359b41 | 8741 | if (mgprev) |
1d7c1841 | 8742 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
8743 | else |
8744 | mgret = nmg; | |
1d7c1841 GS |
8745 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
8746 | nmg->mg_private = mg->mg_private; | |
8747 | nmg->mg_type = mg->mg_type; | |
8748 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 8749 | if (mg->mg_type == PERL_MAGIC_qr) { |
d2f185dc | 8750 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj, param); |
1d7c1841 | 8751 | } |
05bd4103 JH |
8752 | else if(mg->mg_type == PERL_MAGIC_backref) { |
8753 | AV *av = (AV*) mg->mg_obj; | |
8754 | SV **svp; | |
8755 | I32 i; | |
8756 | nmg->mg_obj = (SV*)newAV(); | |
8757 | svp = AvARRAY(av); | |
8758 | i = AvFILLp(av); | |
8759 | while (i >= 0) { | |
8760 | av_push((AV*)nmg->mg_obj,sv_dup(svp[i],param)); | |
8761 | i--; | |
8762 | } | |
8763 | } | |
1d7c1841 GS |
8764 | else { |
8765 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
8766 | ? sv_dup_inc(mg->mg_obj, param) |
8767 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
8768 | } |
8769 | nmg->mg_len = mg->mg_len; | |
8770 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 8771 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
68795e93 | 8772 | if (mg->mg_len > 0) { |
1d7c1841 | 8773 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); |
14befaf4 DM |
8774 | if (mg->mg_type == PERL_MAGIC_overload_table && |
8775 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
8776 | { | |
1d7c1841 GS |
8777 | AMT *amtp = (AMT*)mg->mg_ptr; |
8778 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
8779 | I32 i; | |
8780 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 8781 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
8782 | } |
8783 | } | |
8784 | } | |
8785 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 8786 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 | 8787 | } |
68795e93 NIS |
8788 | if ((mg->mg_flags & MGf_DUP) && mg->mg_virtual && mg->mg_virtual->svt_dup) { |
8789 | CALL_FPTR(nmg->mg_virtual->svt_dup)(aTHX_ nmg, param); | |
8790 | } | |
1d7c1841 GS |
8791 | mgprev = nmg; |
8792 | } | |
8793 | return mgret; | |
8794 | } | |
8795 | ||
645c22ef DM |
8796 | /* create a new pointer-mapping table */ |
8797 | ||
1d7c1841 GS |
8798 | PTR_TBL_t * |
8799 | Perl_ptr_table_new(pTHX) | |
8800 | { | |
8801 | PTR_TBL_t *tbl; | |
8802 | Newz(0, tbl, 1, PTR_TBL_t); | |
8803 | tbl->tbl_max = 511; | |
8804 | tbl->tbl_items = 0; | |
8805 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
8806 | return tbl; | |
8807 | } | |
8808 | ||
645c22ef DM |
8809 | /* map an existing pointer using a table */ |
8810 | ||
1d7c1841 GS |
8811 | void * |
8812 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
8813 | { | |
8814 | PTR_TBL_ENT_t *tblent; | |
d2a79402 | 8815 | UV hash = PTR2UV(sv); |
1d7c1841 GS |
8816 | assert(tbl); |
8817 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
8818 | for (; tblent; tblent = tblent->next) { | |
8819 | if (tblent->oldval == sv) | |
8820 | return tblent->newval; | |
8821 | } | |
8822 | return (void*)NULL; | |
8823 | } | |
8824 | ||
645c22ef DM |
8825 | /* add a new entry to a pointer-mapping table */ |
8826 | ||
1d7c1841 GS |
8827 | void |
8828 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
8829 | { | |
8830 | PTR_TBL_ENT_t *tblent, **otblent; | |
8831 | /* XXX this may be pessimal on platforms where pointers aren't good | |
8832 | * hash values e.g. if they grow faster in the most significant | |
8833 | * bits */ | |
d2a79402 | 8834 | UV hash = PTR2UV(oldv); |
1d7c1841 GS |
8835 | bool i = 1; |
8836 | ||
8837 | assert(tbl); | |
8838 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
8839 | for (tblent = *otblent; tblent; i=0, tblent = tblent->next) { | |
8840 | if (tblent->oldval == oldv) { | |
8841 | tblent->newval = newv; | |
8842 | tbl->tbl_items++; | |
8843 | return; | |
8844 | } | |
8845 | } | |
8846 | Newz(0, tblent, 1, PTR_TBL_ENT_t); | |
8847 | tblent->oldval = oldv; | |
8848 | tblent->newval = newv; | |
8849 | tblent->next = *otblent; | |
8850 | *otblent = tblent; | |
8851 | tbl->tbl_items++; | |
8852 | if (i && tbl->tbl_items > tbl->tbl_max) | |
8853 | ptr_table_split(tbl); | |
8854 | } | |
8855 | ||
645c22ef DM |
8856 | /* double the hash bucket size of an existing ptr table */ |
8857 | ||
1d7c1841 GS |
8858 | void |
8859 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
8860 | { | |
8861 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
8862 | UV oldsize = tbl->tbl_max + 1; | |
8863 | UV newsize = oldsize * 2; | |
8864 | UV i; | |
8865 | ||
8866 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
8867 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
8868 | tbl->tbl_max = --newsize; | |
8869 | tbl->tbl_ary = ary; | |
8870 | for (i=0; i < oldsize; i++, ary++) { | |
8871 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
8872 | if (!*ary) | |
8873 | continue; | |
8874 | curentp = ary + oldsize; | |
8875 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
d2a79402 | 8876 | if ((newsize & PTR2UV(ent->oldval)) != i) { |
1d7c1841 GS |
8877 | *entp = ent->next; |
8878 | ent->next = *curentp; | |
8879 | *curentp = ent; | |
8880 | continue; | |
8881 | } | |
8882 | else | |
8883 | entp = &ent->next; | |
8884 | } | |
8885 | } | |
8886 | } | |
8887 | ||
645c22ef DM |
8888 | /* remove all the entries from a ptr table */ |
8889 | ||
a0739874 DM |
8890 | void |
8891 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
8892 | { | |
8893 | register PTR_TBL_ENT_t **array; | |
8894 | register PTR_TBL_ENT_t *entry; | |
8895 | register PTR_TBL_ENT_t *oentry = Null(PTR_TBL_ENT_t*); | |
8896 | UV riter = 0; | |
8897 | UV max; | |
8898 | ||
8899 | if (!tbl || !tbl->tbl_items) { | |
8900 | return; | |
8901 | } | |
8902 | ||
8903 | array = tbl->tbl_ary; | |
8904 | entry = array[0]; | |
8905 | max = tbl->tbl_max; | |
8906 | ||
8907 | for (;;) { | |
8908 | if (entry) { | |
8909 | oentry = entry; | |
8910 | entry = entry->next; | |
8911 | Safefree(oentry); | |
8912 | } | |
8913 | if (!entry) { | |
8914 | if (++riter > max) { | |
8915 | break; | |
8916 | } | |
8917 | entry = array[riter]; | |
8918 | } | |
8919 | } | |
8920 | ||
8921 | tbl->tbl_items = 0; | |
8922 | } | |
8923 | ||
645c22ef DM |
8924 | /* clear and free a ptr table */ |
8925 | ||
a0739874 DM |
8926 | void |
8927 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
8928 | { | |
8929 | if (!tbl) { | |
8930 | return; | |
8931 | } | |
8932 | ptr_table_clear(tbl); | |
8933 | Safefree(tbl->tbl_ary); | |
8934 | Safefree(tbl); | |
8935 | } | |
8936 | ||
1d7c1841 GS |
8937 | #ifdef DEBUGGING |
8938 | char *PL_watch_pvx; | |
8939 | #endif | |
8940 | ||
645c22ef DM |
8941 | /* attempt to make everything in the typeglob readonly */ |
8942 | ||
5bd07a3d DM |
8943 | STATIC SV * |
8944 | S_gv_share(pTHX_ SV *sstr) | |
8945 | { | |
8946 | GV *gv = (GV*)sstr; | |
8947 | SV *sv = &PL_sv_no; /* just need SvREADONLY-ness */ | |
8948 | ||
8949 | if (GvIO(gv) || GvFORM(gv)) { | |
7fb37951 | 8950 | GvUNIQUE_off(gv); /* GvIOs cannot be shared. nor can GvFORMs */ |
5bd07a3d DM |
8951 | } |
8952 | else if (!GvCV(gv)) { | |
8953 | GvCV(gv) = (CV*)sv; | |
8954 | } | |
8955 | else { | |
8956 | /* CvPADLISTs cannot be shared */ | |
8957 | if (!CvXSUB(GvCV(gv))) { | |
7fb37951 | 8958 | GvUNIQUE_off(gv); |
5bd07a3d DM |
8959 | } |
8960 | } | |
8961 | ||
7fb37951 | 8962 | if (!GvUNIQUE(gv)) { |
5bd07a3d DM |
8963 | #if 0 |
8964 | PerlIO_printf(Perl_debug_log, "gv_share: unable to share %s::%s\n", | |
8965 | HvNAME(GvSTASH(gv)), GvNAME(gv)); | |
8966 | #endif | |
8967 | return Nullsv; | |
8968 | } | |
8969 | ||
4411f3b6 | 8970 | /* |
5bd07a3d DM |
8971 | * write attempts will die with |
8972 | * "Modification of a read-only value attempted" | |
8973 | */ | |
8974 | if (!GvSV(gv)) { | |
8975 | GvSV(gv) = sv; | |
8976 | } | |
8977 | else { | |
8978 | SvREADONLY_on(GvSV(gv)); | |
8979 | } | |
8980 | ||
8981 | if (!GvAV(gv)) { | |
8982 | GvAV(gv) = (AV*)sv; | |
8983 | } | |
8984 | else { | |
8985 | SvREADONLY_on(GvAV(gv)); | |
8986 | } | |
8987 | ||
8988 | if (!GvHV(gv)) { | |
8989 | GvHV(gv) = (HV*)sv; | |
8990 | } | |
8991 | else { | |
8992 | SvREADONLY_on(GvAV(gv)); | |
8993 | } | |
8994 | ||
8995 | return sstr; /* he_dup() will SvREFCNT_inc() */ | |
8996 | } | |
8997 | ||
645c22ef DM |
8998 | /* duplicate an SV of any type (including AV, HV etc) */ |
8999 | ||
83841fad NIS |
9000 | void |
9001 | Perl_rvpv_dup(pTHX_ SV *dstr, SV *sstr, CLONE_PARAMS* param) | |
9002 | { | |
9003 | if (SvROK(sstr)) { | |
9004 | SvRV(dstr) = SvWEAKREF(sstr) | |
9005 | ? sv_dup(SvRV(sstr), param) | |
9006 | : sv_dup_inc(SvRV(sstr), param); | |
9007 | } | |
9008 | else if (SvPVX(sstr)) { | |
9009 | /* Has something there */ | |
9010 | if (SvLEN(sstr)) { | |
68795e93 | 9011 | /* Normal PV - clone whole allocated space */ |
83841fad | 9012 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); |
68795e93 | 9013 | } |
83841fad NIS |
9014 | else { |
9015 | /* Special case - not normally malloced for some reason */ | |
9016 | if (SvREADONLY(sstr) && SvFAKE(sstr)) { | |
9017 | /* A "shared" PV - clone it as unshared string */ | |
9018 | SvFAKE_off(dstr); | |
9019 | SvREADONLY_off(dstr); | |
9020 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvCUR(sstr)); | |
9021 | } | |
9022 | else { | |
9023 | /* Some other special case - random pointer */ | |
9024 | SvPVX(dstr) = SvPVX(sstr); | |
9025 | } | |
9026 | } | |
9027 | } | |
9028 | else { | |
9029 | /* Copy the Null */ | |
9030 | SvPVX(dstr) = SvPVX(sstr); | |
9031 | } | |
9032 | } | |
9033 | ||
1d7c1841 | 9034 | SV * |
a8fc9800 | 9035 | Perl_sv_dup(pTHX_ SV *sstr, CLONE_PARAMS* param) |
1d7c1841 | 9036 | { |
1d7c1841 GS |
9037 | SV *dstr; |
9038 | ||
9039 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
9040 | return Nullsv; | |
9041 | /* look for it in the table first */ | |
9042 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
9043 | if (dstr) | |
9044 | return dstr; | |
9045 | ||
9046 | /* create anew and remember what it is */ | |
9047 | new_SV(dstr); | |
9048 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
9049 | ||
9050 | /* clone */ | |
9051 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
9052 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
9053 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
9054 | ||
9055 | #ifdef DEBUGGING | |
9056 | if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) | |
9057 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", | |
9058 | PL_watch_pvx, SvPVX(sstr)); | |
9059 | #endif | |
9060 | ||
9061 | switch (SvTYPE(sstr)) { | |
9062 | case SVt_NULL: | |
9063 | SvANY(dstr) = NULL; | |
9064 | break; | |
9065 | case SVt_IV: | |
9066 | SvANY(dstr) = new_XIV(); | |
9067 | SvIVX(dstr) = SvIVX(sstr); | |
9068 | break; | |
9069 | case SVt_NV: | |
9070 | SvANY(dstr) = new_XNV(); | |
9071 | SvNVX(dstr) = SvNVX(sstr); | |
9072 | break; | |
9073 | case SVt_RV: | |
9074 | SvANY(dstr) = new_XRV(); | |
83841fad | 9075 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9076 | break; |
9077 | case SVt_PV: | |
9078 | SvANY(dstr) = new_XPV(); | |
9079 | SvCUR(dstr) = SvCUR(sstr); | |
9080 | SvLEN(dstr) = SvLEN(sstr); | |
83841fad | 9081 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9082 | break; |
9083 | case SVt_PVIV: | |
9084 | SvANY(dstr) = new_XPVIV(); | |
9085 | SvCUR(dstr) = SvCUR(sstr); | |
9086 | SvLEN(dstr) = SvLEN(sstr); | |
9087 | SvIVX(dstr) = SvIVX(sstr); | |
83841fad | 9088 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9089 | break; |
9090 | case SVt_PVNV: | |
9091 | SvANY(dstr) = new_XPVNV(); | |
9092 | SvCUR(dstr) = SvCUR(sstr); | |
9093 | SvLEN(dstr) = SvLEN(sstr); | |
9094 | SvIVX(dstr) = SvIVX(sstr); | |
9095 | SvNVX(dstr) = SvNVX(sstr); | |
83841fad | 9096 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9097 | break; |
9098 | case SVt_PVMG: | |
9099 | SvANY(dstr) = new_XPVMG(); | |
9100 | SvCUR(dstr) = SvCUR(sstr); | |
9101 | SvLEN(dstr) = SvLEN(sstr); | |
9102 | SvIVX(dstr) = SvIVX(sstr); | |
9103 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9104 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9105 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9106 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9107 | break; |
9108 | case SVt_PVBM: | |
9109 | SvANY(dstr) = new_XPVBM(); | |
9110 | SvCUR(dstr) = SvCUR(sstr); | |
9111 | SvLEN(dstr) = SvLEN(sstr); | |
9112 | SvIVX(dstr) = SvIVX(sstr); | |
9113 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9114 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9115 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9116 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9117 | BmRARE(dstr) = BmRARE(sstr); |
9118 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
9119 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
9120 | break; | |
9121 | case SVt_PVLV: | |
9122 | SvANY(dstr) = new_XPVLV(); | |
9123 | SvCUR(dstr) = SvCUR(sstr); | |
9124 | SvLEN(dstr) = SvLEN(sstr); | |
9125 | SvIVX(dstr) = SvIVX(sstr); | |
9126 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9127 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9128 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9129 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9130 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ |
9131 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
d2d73c3e | 9132 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); |
1d7c1841 GS |
9133 | LvTYPE(dstr) = LvTYPE(sstr); |
9134 | break; | |
9135 | case SVt_PVGV: | |
7fb37951 | 9136 | if (GvUNIQUE((GV*)sstr)) { |
5bd07a3d DM |
9137 | SV *share; |
9138 | if ((share = gv_share(sstr))) { | |
9139 | del_SV(dstr); | |
9140 | dstr = share; | |
9141 | #if 0 | |
9142 | PerlIO_printf(Perl_debug_log, "sv_dup: sharing %s::%s\n", | |
9143 | HvNAME(GvSTASH(share)), GvNAME(share)); | |
9144 | #endif | |
9145 | break; | |
9146 | } | |
9147 | } | |
1d7c1841 GS |
9148 | SvANY(dstr) = new_XPVGV(); |
9149 | SvCUR(dstr) = SvCUR(sstr); | |
9150 | SvLEN(dstr) = SvLEN(sstr); | |
9151 | SvIVX(dstr) = SvIVX(sstr); | |
9152 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9153 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9154 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9155 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9156 | GvNAMELEN(dstr) = GvNAMELEN(sstr); |
9157 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 9158 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 9159 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 9160 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
9161 | (void)GpREFCNT_inc(GvGP(dstr)); |
9162 | break; | |
9163 | case SVt_PVIO: | |
9164 | SvANY(dstr) = new_XPVIO(); | |
9165 | SvCUR(dstr) = SvCUR(sstr); | |
9166 | SvLEN(dstr) = SvLEN(sstr); | |
9167 | SvIVX(dstr) = SvIVX(sstr); | |
9168 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9169 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9170 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9171 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
a8fc9800 | 9172 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9173 | if (IoOFP(sstr) == IoIFP(sstr)) |
9174 | IoOFP(dstr) = IoIFP(dstr); | |
9175 | else | |
a8fc9800 | 9176 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9177 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
9178 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
9179 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
9180 | else | |
9181 | IoDIRP(dstr) = IoDIRP(sstr); | |
9182 | IoLINES(dstr) = IoLINES(sstr); | |
9183 | IoPAGE(dstr) = IoPAGE(sstr); | |
9184 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
9185 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
9186 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); | |
d2d73c3e | 9187 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); |
1d7c1841 | 9188 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
d2d73c3e | 9189 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); |
1d7c1841 | 9190 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
d2d73c3e | 9191 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); |
1d7c1841 GS |
9192 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
9193 | IoTYPE(dstr) = IoTYPE(sstr); | |
9194 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
9195 | break; | |
9196 | case SVt_PVAV: | |
9197 | SvANY(dstr) = new_XPVAV(); | |
9198 | SvCUR(dstr) = SvCUR(sstr); | |
9199 | SvLEN(dstr) = SvLEN(sstr); | |
9200 | SvIVX(dstr) = SvIVX(sstr); | |
9201 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9202 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9203 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
9204 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); | |
1d7c1841 GS |
9205 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
9206 | if (AvARRAY((AV*)sstr)) { | |
9207 | SV **dst_ary, **src_ary; | |
9208 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
9209 | ||
9210 | src_ary = AvARRAY((AV*)sstr); | |
9211 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
9212 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
9213 | SvPVX(dstr) = (char*)dst_ary; | |
9214 | AvALLOC((AV*)dstr) = dst_ary; | |
9215 | if (AvREAL((AV*)sstr)) { | |
9216 | while (items-- > 0) | |
d2d73c3e | 9217 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
9218 | } |
9219 | else { | |
9220 | while (items-- > 0) | |
d2d73c3e | 9221 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
9222 | } |
9223 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
9224 | while (items-- > 0) { | |
9225 | *dst_ary++ = &PL_sv_undef; | |
9226 | } | |
9227 | } | |
9228 | else { | |
9229 | SvPVX(dstr) = Nullch; | |
9230 | AvALLOC((AV*)dstr) = (SV**)NULL; | |
9231 | } | |
9232 | break; | |
9233 | case SVt_PVHV: | |
9234 | SvANY(dstr) = new_XPVHV(); | |
9235 | SvCUR(dstr) = SvCUR(sstr); | |
9236 | SvLEN(dstr) = SvLEN(sstr); | |
9237 | SvIVX(dstr) = SvIVX(sstr); | |
9238 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9239 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9240 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
9241 | HvRITER((HV*)dstr) = HvRITER((HV*)sstr); |
9242 | if (HvARRAY((HV*)sstr)) { | |
1d7c1841 GS |
9243 | STRLEN i = 0; |
9244 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
9245 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
9246 | Newz(0, dxhv->xhv_array, | |
9247 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); | |
9248 | while (i <= sxhv->xhv_max) { | |
9249 | ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], | |
d2d73c3e | 9250 | !!HvSHAREKEYS(sstr), param); |
1d7c1841 GS |
9251 | ++i; |
9252 | } | |
d2d73c3e | 9253 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, !!HvSHAREKEYS(sstr), param); |
1d7c1841 GS |
9254 | } |
9255 | else { | |
9256 | SvPVX(dstr) = Nullch; | |
9257 | HvEITER((HV*)dstr) = (HE*)NULL; | |
9258 | } | |
9259 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
9260 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
c43294b8 | 9261 | /* Record stashes for possible cloning in Perl_clone(). */ |
6676db26 | 9262 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 9263 | av_push(param->stashes, dstr); |
1d7c1841 GS |
9264 | break; |
9265 | case SVt_PVFM: | |
9266 | SvANY(dstr) = new_XPVFM(); | |
9267 | FmLINES(dstr) = FmLINES(sstr); | |
9268 | goto dup_pvcv; | |
9269 | /* NOTREACHED */ | |
9270 | case SVt_PVCV: | |
9271 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 9272 | dup_pvcv: |
1d7c1841 GS |
9273 | SvCUR(dstr) = SvCUR(sstr); |
9274 | SvLEN(dstr) = SvLEN(sstr); | |
9275 | SvIVX(dstr) = SvIVX(sstr); | |
9276 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9277 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9278 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9279 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
d2d73c3e | 9280 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 GS |
9281 | CvSTART(dstr) = CvSTART(sstr); |
9282 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); | |
9283 | CvXSUB(dstr) = CvXSUB(sstr); | |
9284 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
01485f8b DM |
9285 | if (CvCONST(sstr)) { |
9286 | CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(sstr)) ? | |
9287 | SvREFCNT_inc(CvXSUBANY(sstr).any_ptr) : | |
9288 | sv_dup_inc(CvXSUBANY(sstr).any_ptr, param); | |
9289 | } | |
d2d73c3e AB |
9290 | CvGV(dstr) = gv_dup(CvGV(sstr), param); |
9291 | if (param->flags & CLONEf_COPY_STACKS) { | |
9292 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
9293 | } else { | |
9294 | CvDEPTH(dstr) = 0; | |
9295 | } | |
1d7c1841 GS |
9296 | if (CvPADLIST(sstr) && !AvREAL(CvPADLIST(sstr))) { |
9297 | /* XXX padlists are real, but pretend to be not */ | |
9298 | AvREAL_on(CvPADLIST(sstr)); | |
d2d73c3e | 9299 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
1d7c1841 GS |
9300 | AvREAL_off(CvPADLIST(sstr)); |
9301 | AvREAL_off(CvPADLIST(dstr)); | |
9302 | } | |
9303 | else | |
d2d73c3e | 9304 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
282f25c9 | 9305 | if (!CvANON(sstr) || CvCLONED(sstr)) |
d2d73c3e | 9306 | CvOUTSIDE(dstr) = cv_dup_inc(CvOUTSIDE(sstr), param); |
282f25c9 | 9307 | else |
d2d73c3e | 9308 | CvOUTSIDE(dstr) = cv_dup(CvOUTSIDE(sstr), param); |
1d7c1841 | 9309 | CvFLAGS(dstr) = CvFLAGS(sstr); |
54356c7d | 9310 | CvFILE(dstr) = CvXSUB(sstr) ? CvFILE(sstr) : SAVEPV(CvFILE(sstr)); |
1d7c1841 GS |
9311 | break; |
9312 | default: | |
9313 | Perl_croak(aTHX_ "Bizarre SvTYPE [%d]", SvTYPE(sstr)); | |
9314 | break; | |
9315 | } | |
9316 | ||
9317 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
9318 | ++PL_sv_objcount; | |
9319 | ||
9320 | return dstr; | |
d2d73c3e | 9321 | } |
1d7c1841 | 9322 | |
645c22ef DM |
9323 | /* duplicate a context */ |
9324 | ||
1d7c1841 | 9325 | PERL_CONTEXT * |
a8fc9800 | 9326 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) |
1d7c1841 GS |
9327 | { |
9328 | PERL_CONTEXT *ncxs; | |
9329 | ||
9330 | if (!cxs) | |
9331 | return (PERL_CONTEXT*)NULL; | |
9332 | ||
9333 | /* look for it in the table first */ | |
9334 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
9335 | if (ncxs) | |
9336 | return ncxs; | |
9337 | ||
9338 | /* create anew and remember what it is */ | |
9339 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
9340 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
9341 | ||
9342 | while (ix >= 0) { | |
9343 | PERL_CONTEXT *cx = &cxs[ix]; | |
9344 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
9345 | ncx->cx_type = cx->cx_type; | |
9346 | if (CxTYPE(cx) == CXt_SUBST) { | |
9347 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
9348 | } | |
9349 | else { | |
9350 | ncx->blk_oldsp = cx->blk_oldsp; | |
9351 | ncx->blk_oldcop = cx->blk_oldcop; | |
9352 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
9353 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
9354 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
9355 | ncx->blk_oldpm = cx->blk_oldpm; | |
9356 | ncx->blk_gimme = cx->blk_gimme; | |
9357 | switch (CxTYPE(cx)) { | |
9358 | case CXt_SUB: | |
9359 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
9360 | ? cv_dup_inc(cx->blk_sub.cv, param) |
9361 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 9362 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 9363 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 9364 | : Nullav); |
d2d73c3e | 9365 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
9366 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
9367 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
9368 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
9369 | break; | |
9370 | case CXt_EVAL: | |
9371 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
9372 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
d2d73c3e | 9373 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param);; |
1d7c1841 | 9374 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 9375 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
1d7c1841 GS |
9376 | break; |
9377 | case CXt_LOOP: | |
9378 | ncx->blk_loop.label = cx->blk_loop.label; | |
9379 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
9380 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
9381 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
9382 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
9383 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
9384 | ? cx->blk_loop.iterdata | |
d2d73c3e | 9385 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
a4b82a6f GS |
9386 | ncx->blk_loop.oldcurpad |
9387 | = (SV**)ptr_table_fetch(PL_ptr_table, | |
9388 | cx->blk_loop.oldcurpad); | |
d2d73c3e AB |
9389 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
9390 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
9391 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
9392 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
9393 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
9394 | break; | |
9395 | case CXt_FORMAT: | |
d2d73c3e AB |
9396 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
9397 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
9398 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 GS |
9399 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
9400 | break; | |
9401 | case CXt_BLOCK: | |
9402 | case CXt_NULL: | |
9403 | break; | |
9404 | } | |
9405 | } | |
9406 | --ix; | |
9407 | } | |
9408 | return ncxs; | |
9409 | } | |
9410 | ||
645c22ef DM |
9411 | /* duplicate a stack info structure */ |
9412 | ||
1d7c1841 | 9413 | PERL_SI * |
a8fc9800 | 9414 | Perl_si_dup(pTHX_ PERL_SI *si, CLONE_PARAMS* param) |
1d7c1841 GS |
9415 | { |
9416 | PERL_SI *nsi; | |
9417 | ||
9418 | if (!si) | |
9419 | return (PERL_SI*)NULL; | |
9420 | ||
9421 | /* look for it in the table first */ | |
9422 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
9423 | if (nsi) | |
9424 | return nsi; | |
9425 | ||
9426 | /* create anew and remember what it is */ | |
9427 | Newz(56, nsi, 1, PERL_SI); | |
9428 | ptr_table_store(PL_ptr_table, si, nsi); | |
9429 | ||
d2d73c3e | 9430 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
9431 | nsi->si_cxix = si->si_cxix; |
9432 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 9433 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 9434 | nsi->si_type = si->si_type; |
d2d73c3e AB |
9435 | nsi->si_prev = si_dup(si->si_prev, param); |
9436 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
9437 | nsi->si_markoff = si->si_markoff; |
9438 | ||
9439 | return nsi; | |
9440 | } | |
9441 | ||
9442 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
9443 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
9444 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
9445 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
9446 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
9447 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
9448 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) | |
9449 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
9450 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
9451 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
9452 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
9453 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
9454 | ||
9455 | /* XXXXX todo */ | |
9456 | #define pv_dup_inc(p) SAVEPV(p) | |
9457 | #define pv_dup(p) SAVEPV(p) | |
9458 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
9459 | ||
645c22ef DM |
9460 | /* map any object to the new equivent - either something in the |
9461 | * ptr table, or something in the interpreter structure | |
9462 | */ | |
9463 | ||
1d7c1841 GS |
9464 | void * |
9465 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
9466 | { | |
9467 | void *ret; | |
9468 | ||
9469 | if (!v) | |
9470 | return (void*)NULL; | |
9471 | ||
9472 | /* look for it in the table first */ | |
9473 | ret = ptr_table_fetch(PL_ptr_table, v); | |
9474 | if (ret) | |
9475 | return ret; | |
9476 | ||
9477 | /* see if it is part of the interpreter structure */ | |
9478 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
acfe0abc | 9479 | ret = (void*)(((char*)aTHX) + (((char*)v) - (char*)proto_perl)); |
05ec9bb3 | 9480 | else { |
1d7c1841 | 9481 | ret = v; |
05ec9bb3 | 9482 | } |
1d7c1841 GS |
9483 | |
9484 | return ret; | |
9485 | } | |
9486 | ||
645c22ef DM |
9487 | /* duplicate the save stack */ |
9488 | ||
1d7c1841 | 9489 | ANY * |
a8fc9800 | 9490 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) |
1d7c1841 GS |
9491 | { |
9492 | ANY *ss = proto_perl->Tsavestack; | |
9493 | I32 ix = proto_perl->Tsavestack_ix; | |
9494 | I32 max = proto_perl->Tsavestack_max; | |
9495 | ANY *nss; | |
9496 | SV *sv; | |
9497 | GV *gv; | |
9498 | AV *av; | |
9499 | HV *hv; | |
9500 | void* ptr; | |
9501 | int intval; | |
9502 | long longval; | |
9503 | GP *gp; | |
9504 | IV iv; | |
9505 | I32 i; | |
c4e33207 | 9506 | char *c = NULL; |
1d7c1841 | 9507 | void (*dptr) (void*); |
acfe0abc | 9508 | void (*dxptr) (pTHX_ void*); |
e977893f | 9509 | OP *o; |
1d7c1841 GS |
9510 | |
9511 | Newz(54, nss, max, ANY); | |
9512 | ||
9513 | while (ix > 0) { | |
9514 | i = POPINT(ss,ix); | |
9515 | TOPINT(nss,ix) = i; | |
9516 | switch (i) { | |
9517 | case SAVEt_ITEM: /* normal string */ | |
9518 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9519 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9520 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9521 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9522 | break; |
9523 | case SAVEt_SV: /* scalar reference */ | |
9524 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9525 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9526 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9527 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 9528 | break; |
f4dd75d9 GS |
9529 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
9530 | c = (char*)POPPTR(ss,ix); | |
9531 | TOPPTR(nss,ix) = pv_dup(c); | |
9532 | ptr = POPPTR(ss,ix); | |
9533 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9534 | break; | |
05ec9bb3 NIS |
9535 | case SAVEt_SHARED_PVREF: /* char* in shared space */ |
9536 | c = (char*)POPPTR(ss,ix); | |
9537 | TOPPTR(nss,ix) = savesharedpv(c); | |
9538 | ptr = POPPTR(ss,ix); | |
9539 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9540 | break; | |
1d7c1841 GS |
9541 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
9542 | case SAVEt_SVREF: /* scalar reference */ | |
9543 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9544 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9545 | ptr = POPPTR(ss,ix); |
9546 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
9547 | break; | |
9548 | case SAVEt_AV: /* array reference */ | |
9549 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9550 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 9551 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9552 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9553 | break; |
9554 | case SAVEt_HV: /* hash reference */ | |
9555 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9556 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 9557 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9558 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9559 | break; |
9560 | case SAVEt_INT: /* int reference */ | |
9561 | ptr = POPPTR(ss,ix); | |
9562 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9563 | intval = (int)POPINT(ss,ix); | |
9564 | TOPINT(nss,ix) = intval; | |
9565 | break; | |
9566 | case SAVEt_LONG: /* long reference */ | |
9567 | ptr = POPPTR(ss,ix); | |
9568 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9569 | longval = (long)POPLONG(ss,ix); | |
9570 | TOPLONG(nss,ix) = longval; | |
9571 | break; | |
9572 | case SAVEt_I32: /* I32 reference */ | |
9573 | case SAVEt_I16: /* I16 reference */ | |
9574 | case SAVEt_I8: /* I8 reference */ | |
9575 | ptr = POPPTR(ss,ix); | |
9576 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9577 | i = POPINT(ss,ix); | |
9578 | TOPINT(nss,ix) = i; | |
9579 | break; | |
9580 | case SAVEt_IV: /* IV reference */ | |
9581 | ptr = POPPTR(ss,ix); | |
9582 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9583 | iv = POPIV(ss,ix); | |
9584 | TOPIV(nss,ix) = iv; | |
9585 | break; | |
9586 | case SAVEt_SPTR: /* SV* reference */ | |
9587 | ptr = POPPTR(ss,ix); | |
9588 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9589 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9590 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
9591 | break; |
9592 | case SAVEt_VPTR: /* random* reference */ | |
9593 | ptr = POPPTR(ss,ix); | |
9594 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9595 | ptr = POPPTR(ss,ix); | |
9596 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9597 | break; | |
9598 | case SAVEt_PPTR: /* char* reference */ | |
9599 | ptr = POPPTR(ss,ix); | |
9600 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9601 | c = (char*)POPPTR(ss,ix); | |
9602 | TOPPTR(nss,ix) = pv_dup(c); | |
9603 | break; | |
9604 | case SAVEt_HPTR: /* HV* reference */ | |
9605 | ptr = POPPTR(ss,ix); | |
9606 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9607 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9608 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
9609 | break; |
9610 | case SAVEt_APTR: /* AV* reference */ | |
9611 | ptr = POPPTR(ss,ix); | |
9612 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9613 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9614 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
9615 | break; |
9616 | case SAVEt_NSTAB: | |
9617 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 9618 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9619 | break; |
9620 | case SAVEt_GP: /* scalar reference */ | |
9621 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 9622 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
9623 | (void)GpREFCNT_inc(gp); |
9624 | gv = (GV*)POPPTR(ss,ix); | |
2ed3c8fc | 9625 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 GS |
9626 | c = (char*)POPPTR(ss,ix); |
9627 | TOPPTR(nss,ix) = pv_dup(c); | |
9628 | iv = POPIV(ss,ix); | |
9629 | TOPIV(nss,ix) = iv; | |
9630 | iv = POPIV(ss,ix); | |
9631 | TOPIV(nss,ix) = iv; | |
9632 | break; | |
9633 | case SAVEt_FREESV: | |
26d9b02f | 9634 | case SAVEt_MORTALIZESV: |
1d7c1841 | 9635 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9636 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9637 | break; |
9638 | case SAVEt_FREEOP: | |
9639 | ptr = POPPTR(ss,ix); | |
9640 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
9641 | /* these are assumed to be refcounted properly */ | |
9642 | switch (((OP*)ptr)->op_type) { | |
9643 | case OP_LEAVESUB: | |
9644 | case OP_LEAVESUBLV: | |
9645 | case OP_LEAVEEVAL: | |
9646 | case OP_LEAVE: | |
9647 | case OP_SCOPE: | |
9648 | case OP_LEAVEWRITE: | |
e977893f GS |
9649 | TOPPTR(nss,ix) = ptr; |
9650 | o = (OP*)ptr; | |
9651 | OpREFCNT_inc(o); | |
1d7c1841 GS |
9652 | break; |
9653 | default: | |
9654 | TOPPTR(nss,ix) = Nullop; | |
9655 | break; | |
9656 | } | |
9657 | } | |
9658 | else | |
9659 | TOPPTR(nss,ix) = Nullop; | |
9660 | break; | |
9661 | case SAVEt_FREEPV: | |
9662 | c = (char*)POPPTR(ss,ix); | |
9663 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9664 | break; | |
9665 | case SAVEt_CLEARSV: | |
9666 | longval = POPLONG(ss,ix); | |
9667 | TOPLONG(nss,ix) = longval; | |
9668 | break; | |
9669 | case SAVEt_DELETE: | |
9670 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9671 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9672 | c = (char*)POPPTR(ss,ix); |
9673 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9674 | i = POPINT(ss,ix); | |
9675 | TOPINT(nss,ix) = i; | |
9676 | break; | |
9677 | case SAVEt_DESTRUCTOR: | |
9678 | ptr = POPPTR(ss,ix); | |
9679 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9680 | dptr = POPDPTR(ss,ix); | |
ef75a179 | 9681 | TOPDPTR(nss,ix) = (void (*)(void*))any_dup((void *)dptr, proto_perl); |
1d7c1841 GS |
9682 | break; |
9683 | case SAVEt_DESTRUCTOR_X: | |
9684 | ptr = POPPTR(ss,ix); | |
9685 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9686 | dxptr = POPDXPTR(ss,ix); | |
acfe0abc | 9687 | TOPDXPTR(nss,ix) = (void (*)(pTHX_ void*))any_dup((void *)dxptr, proto_perl); |
1d7c1841 GS |
9688 | break; |
9689 | case SAVEt_REGCONTEXT: | |
9690 | case SAVEt_ALLOC: | |
9691 | i = POPINT(ss,ix); | |
9692 | TOPINT(nss,ix) = i; | |
9693 | ix -= i; | |
9694 | break; | |
9695 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
9696 | i = POPINT(ss,ix); | |
9697 | TOPINT(nss,ix) = i; | |
9698 | break; | |
9699 | case SAVEt_AELEM: /* array element */ | |
9700 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9701 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9702 | i = POPINT(ss,ix); |
9703 | TOPINT(nss,ix) = i; | |
9704 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9705 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
9706 | break; |
9707 | case SAVEt_HELEM: /* hash element */ | |
9708 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9709 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9710 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9711 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9712 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 9713 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9714 | break; |
9715 | case SAVEt_OP: | |
9716 | ptr = POPPTR(ss,ix); | |
9717 | TOPPTR(nss,ix) = ptr; | |
9718 | break; | |
9719 | case SAVEt_HINTS: | |
9720 | i = POPINT(ss,ix); | |
9721 | TOPINT(nss,ix) = i; | |
9722 | break; | |
c4410b1b GS |
9723 | case SAVEt_COMPPAD: |
9724 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9725 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 9726 | break; |
c3564e5c GS |
9727 | case SAVEt_PADSV: |
9728 | longval = (long)POPLONG(ss,ix); | |
9729 | TOPLONG(nss,ix) = longval; | |
9730 | ptr = POPPTR(ss,ix); | |
9731 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9732 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9733 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 9734 | break; |
1d7c1841 GS |
9735 | default: |
9736 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
9737 | } | |
9738 | } | |
9739 | ||
9740 | return nss; | |
9741 | } | |
9742 | ||
645c22ef DM |
9743 | /* |
9744 | =for apidoc perl_clone | |
9745 | ||
9746 | Create and return a new interpreter by cloning the current one. | |
9747 | ||
9748 | =cut | |
9749 | */ | |
9750 | ||
9751 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
3fc56081 NK |
9752 | EXTERN_C PerlInterpreter * |
9753 | perl_clone_host(PerlInterpreter* proto_perl, UV flags); | |
645c22ef | 9754 | |
1d7c1841 GS |
9755 | PerlInterpreter * |
9756 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
9757 | { | |
1d7c1841 | 9758 | #ifdef PERL_IMPLICIT_SYS |
c43294b8 AB |
9759 | |
9760 | /* perlhost.h so we need to call into it | |
9761 | to clone the host, CPerlHost should have a c interface, sky */ | |
9762 | ||
9763 | if (flags & CLONEf_CLONE_HOST) { | |
9764 | return perl_clone_host(proto_perl,flags); | |
9765 | } | |
9766 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
9767 | proto_perl->IMem, |
9768 | proto_perl->IMemShared, | |
9769 | proto_perl->IMemParse, | |
9770 | proto_perl->IEnv, | |
9771 | proto_perl->IStdIO, | |
9772 | proto_perl->ILIO, | |
9773 | proto_perl->IDir, | |
9774 | proto_perl->ISock, | |
9775 | proto_perl->IProc); | |
9776 | } | |
9777 | ||
9778 | PerlInterpreter * | |
9779 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
9780 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
9781 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
9782 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
9783 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
9784 | struct IPerlProc* ipP) | |
9785 | { | |
9786 | /* XXX many of the string copies here can be optimized if they're | |
9787 | * constants; they need to be allocated as common memory and just | |
9788 | * their pointers copied. */ | |
9789 | ||
9790 | IV i; | |
64aa0685 GS |
9791 | CLONE_PARAMS clone_params; |
9792 | CLONE_PARAMS* param = &clone_params; | |
d2d73c3e | 9793 | |
1d7c1841 | 9794 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
ba869deb | 9795 | PERL_SET_THX(my_perl); |
1d7c1841 | 9796 | |
acfe0abc | 9797 | # ifdef DEBUGGING |
1d7c1841 GS |
9798 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); |
9799 | PL_markstack = 0; | |
9800 | PL_scopestack = 0; | |
9801 | PL_savestack = 0; | |
9802 | PL_retstack = 0; | |
66fe0623 | 9803 | PL_sig_pending = 0; |
25596c82 | 9804 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
acfe0abc | 9805 | # else /* !DEBUGGING */ |
1d7c1841 | 9806 | Zero(my_perl, 1, PerlInterpreter); |
acfe0abc | 9807 | # endif /* DEBUGGING */ |
1d7c1841 GS |
9808 | |
9809 | /* host pointers */ | |
9810 | PL_Mem = ipM; | |
9811 | PL_MemShared = ipMS; | |
9812 | PL_MemParse = ipMP; | |
9813 | PL_Env = ipE; | |
9814 | PL_StdIO = ipStd; | |
9815 | PL_LIO = ipLIO; | |
9816 | PL_Dir = ipD; | |
9817 | PL_Sock = ipS; | |
9818 | PL_Proc = ipP; | |
1d7c1841 GS |
9819 | #else /* !PERL_IMPLICIT_SYS */ |
9820 | IV i; | |
64aa0685 GS |
9821 | CLONE_PARAMS clone_params; |
9822 | CLONE_PARAMS* param = &clone_params; | |
1d7c1841 | 9823 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 9824 | PERL_SET_THX(my_perl); |
1d7c1841 | 9825 | |
d2d73c3e AB |
9826 | |
9827 | ||
1d7c1841 GS |
9828 | # ifdef DEBUGGING |
9829 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); | |
9830 | PL_markstack = 0; | |
9831 | PL_scopestack = 0; | |
9832 | PL_savestack = 0; | |
9833 | PL_retstack = 0; | |
66fe0623 | 9834 | PL_sig_pending = 0; |
25596c82 | 9835 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
1d7c1841 GS |
9836 | # else /* !DEBUGGING */ |
9837 | Zero(my_perl, 1, PerlInterpreter); | |
9838 | # endif /* DEBUGGING */ | |
9839 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 9840 | param->flags = flags; |
1d7c1841 GS |
9841 | |
9842 | /* arena roots */ | |
9843 | PL_xiv_arenaroot = NULL; | |
9844 | PL_xiv_root = NULL; | |
612f20c3 | 9845 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 9846 | PL_xnv_root = NULL; |
612f20c3 | 9847 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 9848 | PL_xrv_root = NULL; |
612f20c3 | 9849 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 9850 | PL_xpv_root = NULL; |
612f20c3 | 9851 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 9852 | PL_xpviv_root = NULL; |
612f20c3 | 9853 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 9854 | PL_xpvnv_root = NULL; |
612f20c3 | 9855 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 9856 | PL_xpvcv_root = NULL; |
612f20c3 | 9857 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 9858 | PL_xpvav_root = NULL; |
612f20c3 | 9859 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 9860 | PL_xpvhv_root = NULL; |
612f20c3 | 9861 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 9862 | PL_xpvmg_root = NULL; |
612f20c3 | 9863 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 9864 | PL_xpvlv_root = NULL; |
612f20c3 | 9865 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 9866 | PL_xpvbm_root = NULL; |
612f20c3 | 9867 | PL_he_arenaroot = NULL; |
1d7c1841 GS |
9868 | PL_he_root = NULL; |
9869 | PL_nice_chunk = NULL; | |
9870 | PL_nice_chunk_size = 0; | |
9871 | PL_sv_count = 0; | |
9872 | PL_sv_objcount = 0; | |
9873 | PL_sv_root = Nullsv; | |
9874 | PL_sv_arenaroot = Nullsv; | |
9875 | ||
9876 | PL_debug = proto_perl->Idebug; | |
9877 | ||
e5dd39fc | 9878 | #ifdef USE_REENTRANT_API |
59bd0823 | 9879 | Perl_reentrant_init(aTHX); |
e5dd39fc AB |
9880 | #endif |
9881 | ||
1d7c1841 GS |
9882 | /* create SV map for pointer relocation */ |
9883 | PL_ptr_table = ptr_table_new(); | |
9884 | ||
9885 | /* initialize these special pointers as early as possible */ | |
9886 | SvANY(&PL_sv_undef) = NULL; | |
9887 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
9888 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
9889 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
9890 | ||
1d7c1841 | 9891 | SvANY(&PL_sv_no) = new_XPVNV(); |
1d7c1841 GS |
9892 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
9893 | SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9894 | SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0); | |
9895 | SvCUR(&PL_sv_no) = 0; | |
9896 | SvLEN(&PL_sv_no) = 1; | |
9897 | SvNVX(&PL_sv_no) = 0; | |
9898 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); | |
9899 | ||
1d7c1841 | 9900 | SvANY(&PL_sv_yes) = new_XPVNV(); |
1d7c1841 GS |
9901 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
9902 | SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9903 | SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1); | |
9904 | SvCUR(&PL_sv_yes) = 1; | |
9905 | SvLEN(&PL_sv_yes) = 2; | |
9906 | SvNVX(&PL_sv_yes) = 1; | |
9907 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); | |
9908 | ||
05ec9bb3 | 9909 | /* create (a non-shared!) shared string table */ |
1d7c1841 GS |
9910 | PL_strtab = newHV(); |
9911 | HvSHAREKEYS_off(PL_strtab); | |
9912 | hv_ksplit(PL_strtab, 512); | |
9913 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); | |
9914 | ||
05ec9bb3 NIS |
9915 | PL_compiling = proto_perl->Icompiling; |
9916 | ||
9917 | /* These two PVs will be free'd special way so must set them same way op.c does */ | |
9918 | PL_compiling.cop_stashpv = savesharedpv(PL_compiling.cop_stashpv); | |
9919 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_stashpv, PL_compiling.cop_stashpv); | |
9920 | ||
9921 | PL_compiling.cop_file = savesharedpv(PL_compiling.cop_file); | |
9922 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_file, PL_compiling.cop_file); | |
9923 | ||
1d7c1841 GS |
9924 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); |
9925 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 9926 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 9927 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 9928 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
9929 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
9930 | ||
9931 | /* pseudo environmental stuff */ | |
9932 | PL_origargc = proto_perl->Iorigargc; | |
9933 | i = PL_origargc; | |
9934 | New(0, PL_origargv, i+1, char*); | |
9935 | PL_origargv[i] = '\0'; | |
9936 | while (i-- > 0) { | |
9937 | PL_origargv[i] = SAVEPV(proto_perl->Iorigargv[i]); | |
9938 | } | |
d2d73c3e | 9939 | |
d2d73c3e AB |
9940 | param->stashes = newAV(); /* Setup array of objects to call clone on */ |
9941 | ||
a1ea730d | 9942 | #ifdef PERLIO_LAYERS |
3a1ee7e8 NIS |
9943 | /* Clone PerlIO tables as soon as we can handle general xx_dup() */ |
9944 | PerlIO_clone(aTHX_ proto_perl, param); | |
a1ea730d | 9945 | #endif |
d2d73c3e AB |
9946 | |
9947 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
9948 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
9949 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 9950 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
9951 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
9952 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
9953 | |
9954 | /* switches */ | |
9955 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 9956 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
9957 | PL_localpatches = proto_perl->Ilocalpatches; |
9958 | PL_splitstr = proto_perl->Isplitstr; | |
9959 | PL_preprocess = proto_perl->Ipreprocess; | |
9960 | PL_minus_n = proto_perl->Iminus_n; | |
9961 | PL_minus_p = proto_perl->Iminus_p; | |
9962 | PL_minus_l = proto_perl->Iminus_l; | |
9963 | PL_minus_a = proto_perl->Iminus_a; | |
9964 | PL_minus_F = proto_perl->Iminus_F; | |
9965 | PL_doswitches = proto_perl->Idoswitches; | |
9966 | PL_dowarn = proto_perl->Idowarn; | |
9967 | PL_doextract = proto_perl->Idoextract; | |
9968 | PL_sawampersand = proto_perl->Isawampersand; | |
9969 | PL_unsafe = proto_perl->Iunsafe; | |
9970 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 9971 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
9972 | PL_perldb = proto_perl->Iperldb; |
9973 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
1cbb0781 | 9974 | PL_exit_flags = proto_perl->Iexit_flags; |
1d7c1841 GS |
9975 | |
9976 | /* magical thingies */ | |
9977 | /* XXX time(&PL_basetime) when asked for? */ | |
9978 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 9979 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
9980 | |
9981 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
9982 | PL_multiline = proto_perl->Imultiline; | |
9983 | PL_statusvalue = proto_perl->Istatusvalue; | |
9984 | #ifdef VMS | |
9985 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
9986 | #endif | |
0a378802 | 9987 | PL_encoding = sv_dup(proto_perl->Iencoding, param); |
1d7c1841 | 9988 | |
d2f185dc AMS |
9989 | /* Clone the regex array */ |
9990 | PL_regex_padav = newAV(); | |
9991 | { | |
9992 | I32 len = av_len((AV*)proto_perl->Iregex_padav); | |
9993 | SV** regexen = AvARRAY((AV*)proto_perl->Iregex_padav); | |
0f95fc41 AB |
9994 | av_push(PL_regex_padav, |
9995 | sv_dup_inc(regexen[0],param)); | |
9996 | for(i = 1; i <= len; i++) { | |
9997 | if(SvREPADTMP(regexen[i])) { | |
9998 | av_push(PL_regex_padav, sv_dup_inc(regexen[i], param)); | |
8cf8f3d1 | 9999 | } else { |
0f95fc41 AB |
10000 | av_push(PL_regex_padav, |
10001 | SvREFCNT_inc( | |
8cf8f3d1 | 10002 | newSViv(PTR2IV(re_dup(INT2PTR(REGEXP *, |
cbfa9890 | 10003 | SvIVX(regexen[i])), param))) |
0f95fc41 AB |
10004 | )); |
10005 | } | |
d2f185dc AMS |
10006 | } |
10007 | } | |
10008 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 10009 | |
1d7c1841 | 10010 | /* shortcuts to various I/O objects */ |
d2d73c3e AB |
10011 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
10012 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
10013 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
10014 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
10015 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
10016 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
10017 | |
10018 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 10019 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
10020 | |
10021 | /* shortcuts to misc objects */ | |
d2d73c3e | 10022 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
10023 | |
10024 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
10025 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
10026 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
10027 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
10028 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
10029 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
10030 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
10031 | PL_lineary = av_dup(proto_perl->Ilineary, param); | |
10032 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
10033 | |
10034 | /* symbol tables */ | |
d2d73c3e AB |
10035 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
10036 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
10037 | PL_nullstash = hv_dup(proto_perl->Inullstash, param); | |
10038 | PL_debstash = hv_dup(proto_perl->Idebstash, param); | |
10039 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
10040 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
10041 | ||
10042 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
ee1c5a4e | 10043 | PL_beginav_save = av_dup_inc(proto_perl->Ibeginav_save, param); |
d2d73c3e AB |
10044 | PL_endav = av_dup_inc(proto_perl->Iendav, param); |
10045 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
10046 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
10047 | |
10048 | PL_sub_generation = proto_perl->Isub_generation; | |
10049 | ||
10050 | /* funky return mechanisms */ | |
10051 | PL_forkprocess = proto_perl->Iforkprocess; | |
10052 | ||
10053 | /* subprocess state */ | |
d2d73c3e | 10054 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
10055 | |
10056 | /* internal state */ | |
10057 | PL_tainting = proto_perl->Itainting; | |
10058 | PL_maxo = proto_perl->Imaxo; | |
10059 | if (proto_perl->Iop_mask) | |
10060 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
10061 | else | |
10062 | PL_op_mask = Nullch; | |
10063 | ||
10064 | /* current interpreter roots */ | |
d2d73c3e | 10065 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
10066 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
10067 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 10068 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
10069 | PL_eval_start = proto_perl->Ieval_start; |
10070 | ||
10071 | /* runtime control stuff */ | |
10072 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
10073 | PL_copline = proto_perl->Icopline; | |
10074 | ||
10075 | PL_filemode = proto_perl->Ifilemode; | |
10076 | PL_lastfd = proto_perl->Ilastfd; | |
10077 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
10078 | PL_Argv = NULL; | |
10079 | PL_Cmd = Nullch; | |
10080 | PL_gensym = proto_perl->Igensym; | |
10081 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 10082 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
10083 | PL_laststatval = proto_perl->Ilaststatval; |
10084 | PL_laststype = proto_perl->Ilaststype; | |
10085 | PL_mess_sv = Nullsv; | |
10086 | ||
d2d73c3e | 10087 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
10088 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
10089 | ||
10090 | /* interpreter atexit processing */ | |
10091 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
10092 | if (PL_exitlistlen) { | |
10093 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
10094 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
10095 | } | |
10096 | else | |
10097 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 10098 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
19e8ce8e AB |
10099 | PL_custom_op_names = hv_dup_inc(proto_perl->Icustom_op_names,param); |
10100 | PL_custom_op_descs = hv_dup_inc(proto_perl->Icustom_op_descs,param); | |
1d7c1841 GS |
10101 | |
10102 | PL_profiledata = NULL; | |
a8fc9800 | 10103 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<', param); |
1d7c1841 | 10104 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
d2d73c3e | 10105 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 10106 | |
d2d73c3e AB |
10107 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
10108 | PL_comppad = av_dup(proto_perl->Icomppad, param); | |
10109 | PL_comppad_name = av_dup(proto_perl->Icomppad_name, param); | |
1d7c1841 GS |
10110 | PL_comppad_name_fill = proto_perl->Icomppad_name_fill; |
10111 | PL_comppad_name_floor = proto_perl->Icomppad_name_floor; | |
10112 | PL_curpad = (SV**)ptr_table_fetch(PL_ptr_table, | |
10113 | proto_perl->Tcurpad); | |
10114 | ||
10115 | #ifdef HAVE_INTERP_INTERN | |
10116 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
10117 | #endif | |
10118 | ||
10119 | /* more statics moved here */ | |
10120 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 10121 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
10122 | |
10123 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
10124 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
10125 | ||
10126 | PL_uid = proto_perl->Iuid; | |
10127 | PL_euid = proto_perl->Ieuid; | |
10128 | PL_gid = proto_perl->Igid; | |
10129 | PL_egid = proto_perl->Iegid; | |
10130 | PL_nomemok = proto_perl->Inomemok; | |
10131 | PL_an = proto_perl->Ian; | |
10132 | PL_cop_seqmax = proto_perl->Icop_seqmax; | |
10133 | PL_op_seqmax = proto_perl->Iop_seqmax; | |
10134 | PL_evalseq = proto_perl->Ievalseq; | |
10135 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
10136 | PL_origalen = proto_perl->Iorigalen; | |
10137 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
10138 | PL_osname = SAVEPV(proto_perl->Iosname); | |
0bb09c15 | 10139 | PL_sh_path = proto_perl->Ish_path; /* XXX never deallocated */ |
1d7c1841 GS |
10140 | PL_sighandlerp = proto_perl->Isighandlerp; |
10141 | ||
10142 | ||
10143 | PL_runops = proto_perl->Irunops; | |
10144 | ||
10145 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
10146 | ||
10147 | #ifdef CSH | |
10148 | PL_cshlen = proto_perl->Icshlen; | |
74f1b2b8 | 10149 | PL_cshname = proto_perl->Icshname; /* XXX never deallocated */ |
1d7c1841 GS |
10150 | #endif |
10151 | ||
10152 | PL_lex_state = proto_perl->Ilex_state; | |
10153 | PL_lex_defer = proto_perl->Ilex_defer; | |
10154 | PL_lex_expect = proto_perl->Ilex_expect; | |
10155 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
10156 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
10157 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
10158 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
10159 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
10160 | PL_lex_op = proto_perl->Ilex_op; |
10161 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
10162 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
10163 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
10164 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
10165 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
10166 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
10167 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
10168 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
10169 | ||
10170 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
10171 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
10172 | PL_nexttoke = proto_perl->Inexttoke; | |
10173 | ||
d2d73c3e | 10174 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); |
1d7c1841 GS |
10175 | i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); |
10176 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10177 | i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); | |
10178 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10179 | i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); | |
10180 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10181 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
10182 | i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); | |
10183 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10184 | PL_pending_ident = proto_perl->Ipending_ident; | |
10185 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
10186 | ||
10187 | PL_expect = proto_perl->Iexpect; | |
10188 | ||
10189 | PL_multi_start = proto_perl->Imulti_start; | |
10190 | PL_multi_end = proto_perl->Imulti_end; | |
10191 | PL_multi_open = proto_perl->Imulti_open; | |
10192 | PL_multi_close = proto_perl->Imulti_close; | |
10193 | ||
10194 | PL_error_count = proto_perl->Ierror_count; | |
10195 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 10196 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 GS |
10197 | |
10198 | PL_min_intro_pending = proto_perl->Imin_intro_pending; | |
10199 | PL_max_intro_pending = proto_perl->Imax_intro_pending; | |
10200 | PL_padix = proto_perl->Ipadix; | |
10201 | PL_padix_floor = proto_perl->Ipadix_floor; | |
10202 | PL_pad_reset_pending = proto_perl->Ipad_reset_pending; | |
10203 | ||
10204 | i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); | |
10205 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10206 | i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); | |
10207 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10208 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
10209 | PL_in_my = proto_perl->Iin_my; | |
d2d73c3e | 10210 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
10211 | #ifdef FCRYPT |
10212 | PL_cryptseen = proto_perl->Icryptseen; | |
10213 | #endif | |
10214 | ||
10215 | PL_hints = proto_perl->Ihints; | |
10216 | ||
10217 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
10218 | ||
10219 | #ifdef USE_LOCALE_COLLATE | |
10220 | PL_collation_ix = proto_perl->Icollation_ix; | |
10221 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
10222 | PL_collation_standard = proto_perl->Icollation_standard; | |
10223 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
10224 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
10225 | #endif /* USE_LOCALE_COLLATE */ | |
10226 | ||
10227 | #ifdef USE_LOCALE_NUMERIC | |
10228 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
10229 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
10230 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 10231 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
10232 | #endif /* !USE_LOCALE_NUMERIC */ |
10233 | ||
10234 | /* utf8 character classes */ | |
d2d73c3e AB |
10235 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
10236 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
10237 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
10238 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
10239 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
10240 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
10241 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
10242 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
10243 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
10244 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
10245 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
10246 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
10247 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
10248 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
10249 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
10250 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
10251 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
b4e400f9 | 10252 | PL_utf8_tofold = sv_dup_inc(proto_perl->Iutf8_tofold, param); |
1d7c1841 GS |
10253 | |
10254 | /* swatch cache */ | |
10255 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
10256 | PL_last_swash_klen = 0; | |
10257 | PL_last_swash_key[0]= '\0'; | |
10258 | PL_last_swash_tmps = (U8*)NULL; | |
10259 | PL_last_swash_slen = 0; | |
10260 | ||
10261 | /* perly.c globals */ | |
10262 | PL_yydebug = proto_perl->Iyydebug; | |
10263 | PL_yynerrs = proto_perl->Iyynerrs; | |
10264 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
10265 | PL_yychar = proto_perl->Iyychar; | |
10266 | PL_yyval = proto_perl->Iyyval; | |
10267 | PL_yylval = proto_perl->Iyylval; | |
10268 | ||
10269 | PL_glob_index = proto_perl->Iglob_index; | |
10270 | PL_srand_called = proto_perl->Isrand_called; | |
10271 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
10272 | PL_bitcount = Nullch; /* reinits on demand */ | |
10273 | ||
66fe0623 NIS |
10274 | if (proto_perl->Ipsig_pend) { |
10275 | Newz(0, PL_psig_pend, SIG_SIZE, int); | |
9dd79c3f | 10276 | } |
66fe0623 NIS |
10277 | else { |
10278 | PL_psig_pend = (int*)NULL; | |
10279 | } | |
10280 | ||
1d7c1841 | 10281 | if (proto_perl->Ipsig_ptr) { |
76d3c696 JH |
10282 | Newz(0, PL_psig_ptr, SIG_SIZE, SV*); |
10283 | Newz(0, PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 10284 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
10285 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
10286 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
10287 | } |
10288 | } | |
10289 | else { | |
10290 | PL_psig_ptr = (SV**)NULL; | |
10291 | PL_psig_name = (SV**)NULL; | |
10292 | } | |
10293 | ||
10294 | /* thrdvar.h stuff */ | |
10295 | ||
a0739874 | 10296 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
10297 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
10298 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
10299 | PL_tmps_max = proto_perl->Ttmps_max; | |
10300 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
10301 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
10302 | i = 0; | |
10303 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 10304 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
10305 | ++i; |
10306 | } | |
10307 | ||
10308 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
10309 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
10310 | Newz(54, PL_markstack, i, I32); | |
10311 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
10312 | - proto_perl->Tmarkstack); | |
10313 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
10314 | - proto_perl->Tmarkstack); | |
10315 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
10316 | PL_markstack_ptr - PL_markstack + 1, I32); | |
10317 | ||
10318 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
10319 | * NOTE: unlike the others! */ | |
10320 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
10321 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
10322 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
10323 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
10324 | ||
10325 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
10326 | * NOTE: unlike the others! */ | |
10327 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
10328 | PL_retstack_max = proto_perl->Tretstack_max; | |
10329 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
10330 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, I32); | |
10331 | ||
10332 | /* NOTE: si_dup() looks at PL_markstack */ | |
d2d73c3e | 10333 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
10334 | |
10335 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
10336 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
10337 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
10338 | |
10339 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
10340 | PL_stack_base = AvARRAY(PL_curstack); | |
10341 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
10342 | - proto_perl->Tstack_base); | |
10343 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
10344 | ||
10345 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
10346 | * NOTE: unlike the others! */ | |
10347 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
10348 | PL_savestack_max = proto_perl->Tsavestack_max; | |
10349 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
d2d73c3e | 10350 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
10351 | } |
10352 | else { | |
10353 | init_stacks(); | |
985e7056 | 10354 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
10355 | } |
10356 | ||
10357 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
10358 | PL_top_env = &PL_start_env; | |
10359 | ||
10360 | PL_op = proto_perl->Top; | |
10361 | ||
10362 | PL_Sv = Nullsv; | |
10363 | PL_Xpv = (XPV*)NULL; | |
10364 | PL_na = proto_perl->Tna; | |
10365 | ||
10366 | PL_statbuf = proto_perl->Tstatbuf; | |
10367 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
10368 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
10369 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
10370 | #ifdef HAS_TIMES |
10371 | PL_timesbuf = proto_perl->Ttimesbuf; | |
10372 | #endif | |
10373 | ||
10374 | PL_tainted = proto_perl->Ttainted; | |
10375 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
10376 | PL_rs = sv_dup_inc(proto_perl->Trs, param); |
10377 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
10378 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
10379 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 10380 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
10381 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
10382 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
10383 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
10384 | |
10385 | PL_restartop = proto_perl->Trestartop; | |
10386 | PL_in_eval = proto_perl->Tin_eval; | |
10387 | PL_delaymagic = proto_perl->Tdelaymagic; | |
10388 | PL_dirty = proto_perl->Tdirty; | |
10389 | PL_localizing = proto_perl->Tlocalizing; | |
10390 | ||
14dd3ad8 | 10391 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 10392 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 10393 | #endif |
d2d73c3e | 10394 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
1d7c1841 GS |
10395 | PL_av_fetch_sv = Nullsv; |
10396 | PL_hv_fetch_sv = Nullsv; | |
10397 | Zero(&PL_hv_fetch_ent_mh, 1, HE); /* XXX */ | |
10398 | PL_modcount = proto_perl->Tmodcount; | |
10399 | PL_lastgotoprobe = Nullop; | |
10400 | PL_dumpindent = proto_perl->Tdumpindent; | |
10401 | ||
10402 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
10403 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
10404 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
10405 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
10406 | PL_sortcxix = proto_perl->Tsortcxix; |
10407 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
10408 | PL_efloatsize = 0; /* reinits on demand */ | |
10409 | ||
10410 | /* regex stuff */ | |
10411 | ||
10412 | PL_screamfirst = NULL; | |
10413 | PL_screamnext = NULL; | |
10414 | PL_maxscream = -1; /* reinits on demand */ | |
10415 | PL_lastscream = Nullsv; | |
10416 | ||
10417 | PL_watchaddr = NULL; | |
10418 | PL_watchok = Nullch; | |
10419 | ||
10420 | PL_regdummy = proto_perl->Tregdummy; | |
10421 | PL_regcomp_parse = Nullch; | |
10422 | PL_regxend = Nullch; | |
10423 | PL_regcode = (regnode*)NULL; | |
10424 | PL_regnaughty = 0; | |
10425 | PL_regsawback = 0; | |
10426 | PL_regprecomp = Nullch; | |
10427 | PL_regnpar = 0; | |
10428 | PL_regsize = 0; | |
10429 | PL_regflags = 0; | |
10430 | PL_regseen = 0; | |
10431 | PL_seen_zerolen = 0; | |
10432 | PL_seen_evals = 0; | |
10433 | PL_regcomp_rx = (regexp*)NULL; | |
10434 | PL_extralen = 0; | |
10435 | PL_colorset = 0; /* reinits PL_colors[] */ | |
10436 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
10437 | PL_reg_whilem_seen = 0; | |
10438 | PL_reginput = Nullch; | |
10439 | PL_regbol = Nullch; | |
10440 | PL_regeol = Nullch; | |
10441 | PL_regstartp = (I32*)NULL; | |
10442 | PL_regendp = (I32*)NULL; | |
10443 | PL_reglastparen = (U32*)NULL; | |
10444 | PL_regtill = Nullch; | |
1d7c1841 GS |
10445 | PL_reg_start_tmp = (char**)NULL; |
10446 | PL_reg_start_tmpl = 0; | |
10447 | PL_regdata = (struct reg_data*)NULL; | |
10448 | PL_bostr = Nullch; | |
10449 | PL_reg_flags = 0; | |
10450 | PL_reg_eval_set = 0; | |
10451 | PL_regnarrate = 0; | |
10452 | PL_regprogram = (regnode*)NULL; | |
10453 | PL_regindent = 0; | |
10454 | PL_regcc = (CURCUR*)NULL; | |
10455 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
10456 | PL_reg_re = (regexp*)NULL; | |
10457 | PL_reg_ganch = Nullch; | |
10458 | PL_reg_sv = Nullsv; | |
53c4c00c | 10459 | PL_reg_match_utf8 = FALSE; |
1d7c1841 GS |
10460 | PL_reg_magic = (MAGIC*)NULL; |
10461 | PL_reg_oldpos = 0; | |
10462 | PL_reg_oldcurpm = (PMOP*)NULL; | |
10463 | PL_reg_curpm = (PMOP*)NULL; | |
10464 | PL_reg_oldsaved = Nullch; | |
10465 | PL_reg_oldsavedlen = 0; | |
10466 | PL_reg_maxiter = 0; | |
10467 | PL_reg_leftiter = 0; | |
10468 | PL_reg_poscache = Nullch; | |
10469 | PL_reg_poscache_size= 0; | |
10470 | ||
10471 | /* RE engine - function pointers */ | |
10472 | PL_regcompp = proto_perl->Tregcompp; | |
10473 | PL_regexecp = proto_perl->Tregexecp; | |
10474 | PL_regint_start = proto_perl->Tregint_start; | |
10475 | PL_regint_string = proto_perl->Tregint_string; | |
10476 | PL_regfree = proto_perl->Tregfree; | |
10477 | ||
10478 | PL_reginterp_cnt = 0; | |
10479 | PL_reg_starttry = 0; | |
10480 | ||
a2efc822 SC |
10481 | /* Pluggable optimizer */ |
10482 | PL_peepp = proto_perl->Tpeepp; | |
10483 | ||
a0739874 DM |
10484 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
10485 | ptr_table_free(PL_ptr_table); | |
10486 | PL_ptr_table = NULL; | |
10487 | } | |
8cf8f3d1 | 10488 | |
f284b03f AMS |
10489 | /* Call the ->CLONE method, if it exists, for each of the stashes |
10490 | identified by sv_dup() above. | |
10491 | */ | |
d2d73c3e AB |
10492 | while(av_len(param->stashes) != -1) { |
10493 | HV* stash = (HV*) av_shift(param->stashes); | |
f284b03f AMS |
10494 | GV* cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); |
10495 | if (cloner && GvCV(cloner)) { | |
10496 | dSP; | |
10497 | ENTER; | |
10498 | SAVETMPS; | |
10499 | PUSHMARK(SP); | |
dc507217 | 10500 | XPUSHs(sv_2mortal(newSVpv(HvNAME(stash), 0))); |
f284b03f AMS |
10501 | PUTBACK; |
10502 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
10503 | FREETMPS; | |
10504 | LEAVE; | |
10505 | } | |
4a09accc | 10506 | } |
a0739874 | 10507 | |
dc507217 | 10508 | SvREFCNT_dec(param->stashes); |
dc507217 | 10509 | |
1d7c1841 | 10510 | return my_perl; |
1d7c1841 GS |
10511 | } |
10512 | ||
1d7c1841 | 10513 | #endif /* USE_ITHREADS */ |
a0ae6670 | 10514 | |
9f4817db | 10515 | /* |
ccfc67b7 JH |
10516 | =head1 Unicode Support |
10517 | ||
9f4817db JH |
10518 | =for apidoc sv_recode_to_utf8 |
10519 | ||
5d170f3a JH |
10520 | The encoding is assumed to be an Encode object, on entry the PV |
10521 | of the sv is assumed to be octets in that encoding, and the sv | |
10522 | will be converted into Unicode (and UTF-8). | |
9f4817db | 10523 | |
5d170f3a JH |
10524 | If the sv already is UTF-8 (or if it is not POK), or if the encoding |
10525 | is not a reference, nothing is done to the sv. If the encoding is not | |
1768d7eb JH |
10526 | an C<Encode::XS> Encoding object, bad things will happen. |
10527 | (See F<lib/encoding.pm> and L<Encode>). | |
9f4817db | 10528 | |
5d170f3a | 10529 | The PV of the sv is returned. |
9f4817db | 10530 | |
5d170f3a JH |
10531 | =cut */ |
10532 | ||
10533 | char * | |
10534 | Perl_sv_recode_to_utf8(pTHX_ SV *sv, SV *encoding) | |
10535 | { | |
121910a4 | 10536 | if (SvPOK(sv) && !DO_UTF8(sv) && SvROK(encoding)) { |
5d170f3a JH |
10537 | SV *uni; |
10538 | STRLEN len; | |
10539 | char *s; | |
10540 | dSP; | |
10541 | ENTER; | |
10542 | SAVETMPS; | |
10543 | PUSHMARK(sp); | |
10544 | EXTEND(SP, 3); | |
10545 | XPUSHs(encoding); | |
10546 | XPUSHs(sv); | |
10547 | XPUSHs(&PL_sv_yes); | |
10548 | PUTBACK; | |
10549 | call_method("decode", G_SCALAR); | |
10550 | SPAGAIN; | |
10551 | uni = POPs; | |
10552 | PUTBACK; | |
3e169325 | 10553 | s = SvPV(uni, len); |
5d170f3a JH |
10554 | if (s != SvPVX(sv)) { |
10555 | SvGROW(sv, len); | |
10556 | Move(s, SvPVX(sv), len, char); | |
10557 | SvCUR_set(sv, len); | |
10558 | } | |
10559 | FREETMPS; | |
10560 | LEAVE; | |
10561 | SvUTF8_on(sv); | |
9f4817db | 10562 | } |
5d170f3a | 10563 | return SvPVX(sv); |
9f4817db JH |
10564 | } |
10565 | ||
68795e93 | 10566 |