Commit | Line | Data |
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a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
bc89e66f | 3 | * Copyright (c) 1991-2001, 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 | * | |
11 | * Manipulation of scalar values (SVs). This file contains the code that | |
12 | * creates, manipulates and destroys SVs. (Opcode-level functions on SVs | |
13 | * can be found in the various pp*.c files.) Note that the basic structure | |
14 | * of an SV is also used to hold the other major Perl data types - AVs, | |
15 | * HVs, GVs, IO etc. Low-level functions on these other types - such as | |
16 | * memory allocation and destruction - are handled within this file, while | |
17 | * higher-level stuff can be found in the individual files av.c, hv.c, | |
18 | * etc. | |
79072805 LW |
19 | */ |
20 | ||
21 | #include "EXTERN.h" | |
864dbfa3 | 22 | #define PERL_IN_SV_C |
79072805 | 23 | #include "perl.h" |
79072805 | 24 | |
51371543 | 25 | #define FCALL *f |
6fc92669 | 26 | #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_force_normal(sv) |
2c5424a7 | 27 | |
645c22ef DM |
28 | |
29 | /* ============================================================================ | |
30 | ||
31 | =head1 Allocation and deallocation of SVs. | |
32 | ||
33 | An SV (or AV, HV etc) is in 2 parts: the head and the body. There is only | |
34 | one type of head, but around 13 body types. Head and body are each | |
35 | separately allocated. Normally, this allocation is done using arenas, | |
36 | which are approximately 1K chunks of memory parcelled up into N heads or | |
37 | bodies. The first slot in each arena is reserved, and is used to hold a | |
38 | link to the next arena. In the case of heads, the unused first slot | |
39 | also contains some flags and a note of the number of slots. Snaked through | |
40 | each arena chain is a linked list of free items; when this becomes empty, | |
41 | an extra arena is allocated and divided up into N items which are threaded | |
42 | into the free list. | |
43 | ||
44 | The following global variables are associated with arenas: | |
45 | ||
46 | PL_sv_arenaroot pointer to list of SV arenas | |
47 | PL_sv_root pointer to list of free SV structures | |
48 | ||
49 | PL_foo_arenaroot pointer to list of foo arenas, | |
50 | PL_foo_root pointer to list of free foo bodies | |
51 | ... for foo in xiv, xnv, xrv, xpv etc. | |
52 | ||
53 | Note that some of the larger and more rarely used body types (eg xpvio) | |
54 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
55 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
56 | with all items individually malloc()ed. In addition, a few SV heads are | |
57 | not allocated from an arena, but are instead directly created as static | |
58 | or auto variables, eg PL_sv_undef. | |
59 | ||
60 | The SV arena serves the secondary purpose of allowing still-live SVs | |
61 | to be located and destroyed during final cleanup. | |
62 | ||
63 | At the lowest level, the macros new_SV() and del_SV() grab and free | |
64 | an SV head. (If debugging with -DD, del_SV() calls the function S_del_sv() | |
65 | to return the SV to the free list with error checking.) new_SV() calls | |
66 | more_sv() / sv_add_arena() to add an extra arena if the free list is empty. | |
67 | SVs in the free list have their SvTYPE field set to all ones. | |
68 | ||
69 | Similarly, there are macros new_XIV()/del_XIV(), new_XNV()/del_XNV() etc | |
70 | that allocate and return individual body types. Normally these are mapped | |
71 | to the arena-maniplulating functions new_xiv()/del_xiv() etc, but may be | |
72 | instead mapped directly to malloc()/free() if PURIFY is in effect. The | |
73 | new/del functions remove from, or add to, the appropriate PL_foo_root | |
74 | list, and call more_xiv() etc to add a new arena if the list is empty. | |
75 | ||
76 | It the time of very final cleanup, sv_free_arenas() is called from | |
77 | perl_destruct() to physically free all the arenas allocated since the | |
78 | start of the interpreter. Note that this also clears PL_he_arenaroot, | |
79 | which is otherwise dealt with in hv.c. | |
80 | ||
81 | Manipulation of any of the PL_*root pointers is protected by enclosing | |
82 | LOCK_SV_MUTEX; ... UNLOCK_SV_MUTEX calls which should Do the Right Thing | |
83 | if threads are enabled. | |
84 | ||
85 | The function visit() scans the SV arenas list, and calls a specified | |
86 | function for each SV it finds which is still live - ie which has an SvTYPE | |
87 | other than all 1's, and a non-zero SvREFCNT. visit() is used by the | |
88 | following functions (specified as [function that calls visit()] / [function | |
89 | called by visit() for each SV]): | |
90 | ||
91 | sv_report_used() / do_report_used() | |
92 | dump all remaining SVs (debugging aid) | |
93 | ||
94 | sv_clean_objs() / do_clean_objs(),do_clean_named_objs() | |
95 | Attempt to free all objects pointed to by RVs, | |
96 | and, unless DISABLE_DESTRUCTOR_KLUDGE is defined, | |
97 | try to do the same for all objects indirectly | |
98 | referenced by typeglobs too. Called once from | |
99 | perl_destruct(), prior to calling sv_clean_all() | |
100 | below. | |
101 | ||
102 | sv_clean_all() / do_clean_all() | |
103 | SvREFCNT_dec(sv) each remaining SV, possibly | |
104 | triggering an sv_free(). It also sets the | |
105 | SVf_BREAK flag on the SV to indicate that the | |
106 | refcnt has been artificially lowered, and thus | |
107 | stopping sv_free() from giving spurious warnings | |
108 | about SVs which unexpectedly have a refcnt | |
109 | of zero. called repeatedly from perl_destruct() | |
110 | until there are no SVs left. | |
111 | ||
112 | =head2 Summary | |
113 | ||
114 | Private API to rest of sv.c | |
115 | ||
116 | new_SV(), del_SV(), | |
117 | ||
118 | new_XIV(), del_XIV(), | |
119 | new_XNV(), del_XNV(), | |
120 | etc | |
121 | ||
122 | Public API: | |
123 | ||
124 | sv_report_used(), sv_clean_objs(), sv_clean_all(), sv_free_arenas() | |
125 | ||
126 | ||
127 | =cut | |
128 | ||
129 | ============================================================================ */ | |
130 | ||
131 | ||
51371543 | 132 | |
4561caa4 CS |
133 | /* |
134 | * "A time to plant, and a time to uproot what was planted..." | |
135 | */ | |
136 | ||
053fc874 GS |
137 | #define plant_SV(p) \ |
138 | STMT_START { \ | |
139 | SvANY(p) = (void *)PL_sv_root; \ | |
140 | SvFLAGS(p) = SVTYPEMASK; \ | |
141 | PL_sv_root = (p); \ | |
142 | --PL_sv_count; \ | |
143 | } STMT_END | |
a0d0e21e | 144 | |
fba3b22e | 145 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
146 | #define uproot_SV(p) \ |
147 | STMT_START { \ | |
148 | (p) = PL_sv_root; \ | |
149 | PL_sv_root = (SV*)SvANY(p); \ | |
150 | ++PL_sv_count; \ | |
151 | } STMT_END | |
152 | ||
645c22ef DM |
153 | |
154 | /* new_SV(): return a new, empty SV head */ | |
155 | ||
053fc874 GS |
156 | #define new_SV(p) \ |
157 | STMT_START { \ | |
158 | LOCK_SV_MUTEX; \ | |
159 | if (PL_sv_root) \ | |
160 | uproot_SV(p); \ | |
161 | else \ | |
162 | (p) = more_sv(); \ | |
163 | UNLOCK_SV_MUTEX; \ | |
164 | SvANY(p) = 0; \ | |
165 | SvREFCNT(p) = 1; \ | |
166 | SvFLAGS(p) = 0; \ | |
167 | } STMT_END | |
463ee0b2 | 168 | |
645c22ef DM |
169 | |
170 | /* del_SV(): return an empty SV head to the free list */ | |
171 | ||
a0d0e21e | 172 | #ifdef DEBUGGING |
4561caa4 | 173 | |
053fc874 GS |
174 | #define del_SV(p) \ |
175 | STMT_START { \ | |
176 | LOCK_SV_MUTEX; \ | |
aea4f609 | 177 | if (DEBUG_D_TEST) \ |
053fc874 GS |
178 | del_sv(p); \ |
179 | else \ | |
180 | plant_SV(p); \ | |
181 | UNLOCK_SV_MUTEX; \ | |
182 | } STMT_END | |
a0d0e21e | 183 | |
76e3520e | 184 | STATIC void |
cea2e8a9 | 185 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 186 | { |
aea4f609 | 187 | if (DEBUG_D_TEST) { |
4633a7c4 | 188 | SV* sva; |
a0d0e21e LW |
189 | SV* sv; |
190 | SV* svend; | |
191 | int ok = 0; | |
3280af22 | 192 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
193 | sv = sva + 1; |
194 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
195 | if (p >= sv && p < svend) |
196 | ok = 1; | |
197 | } | |
198 | if (!ok) { | |
0453d815 PM |
199 | if (ckWARN_d(WARN_INTERNAL)) |
200 | Perl_warner(aTHX_ WARN_INTERNAL, | |
1d7c1841 GS |
201 | "Attempt to free non-arena SV: 0x%"UVxf, |
202 | PTR2UV(p)); | |
a0d0e21e LW |
203 | return; |
204 | } | |
205 | } | |
4561caa4 | 206 | plant_SV(p); |
463ee0b2 | 207 | } |
a0d0e21e | 208 | |
4561caa4 CS |
209 | #else /* ! DEBUGGING */ |
210 | ||
211 | #define del_SV(p) plant_SV(p) | |
212 | ||
213 | #endif /* DEBUGGING */ | |
463ee0b2 | 214 | |
645c22ef DM |
215 | |
216 | /* | |
217 | =for apidoc sv_add_arena | |
218 | ||
219 | Given a chunk of memory, link it to the head of the list of arenas, | |
220 | and split it into a list of free SVs. | |
221 | ||
222 | =cut | |
223 | */ | |
224 | ||
4633a7c4 | 225 | void |
864dbfa3 | 226 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 227 | { |
4633a7c4 | 228 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
229 | register SV* sv; |
230 | register SV* svend; | |
14dd3ad8 | 231 | Zero(ptr, size, char); |
4633a7c4 LW |
232 | |
233 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 234 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
235 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
236 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
237 | ||
3280af22 NIS |
238 | PL_sv_arenaroot = sva; |
239 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
240 | |
241 | svend = &sva[SvREFCNT(sva) - 1]; | |
242 | sv = sva + 1; | |
463ee0b2 | 243 | while (sv < svend) { |
a0d0e21e | 244 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 | 245 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
246 | sv++; |
247 | } | |
248 | SvANY(sv) = 0; | |
4633a7c4 LW |
249 | SvFLAGS(sv) = SVTYPEMASK; |
250 | } | |
251 | ||
645c22ef DM |
252 | /* make some more SVs by adding another arena */ |
253 | ||
fba3b22e | 254 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 255 | STATIC SV* |
cea2e8a9 | 256 | S_more_sv(pTHX) |
4633a7c4 | 257 | { |
4561caa4 CS |
258 | register SV* sv; |
259 | ||
3280af22 NIS |
260 | if (PL_nice_chunk) { |
261 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
262 | PL_nice_chunk = Nullch; | |
30ad99e7 | 263 | PL_nice_chunk_size = 0; |
c07a80fd | 264 | } |
1edc1566 | 265 | else { |
266 | char *chunk; /* must use New here to match call to */ | |
267 | New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ | |
268 | sv_add_arena(chunk, 1008, 0); | |
269 | } | |
4561caa4 CS |
270 | uproot_SV(sv); |
271 | return sv; | |
463ee0b2 LW |
272 | } |
273 | ||
645c22ef DM |
274 | /* visit(): call the named function for each non-free in SV the arenas. */ |
275 | ||
5226ed68 | 276 | STATIC I32 |
cea2e8a9 | 277 | S_visit(pTHX_ SVFUNC_t f) |
8990e307 | 278 | { |
4633a7c4 | 279 | SV* sva; |
8990e307 LW |
280 | SV* sv; |
281 | register SV* svend; | |
5226ed68 | 282 | I32 visited = 0; |
8990e307 | 283 | |
3280af22 | 284 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 285 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 | 286 | for (sv = sva + 1; sv < svend; ++sv) { |
f25c30a3 | 287 | if (SvTYPE(sv) != SVTYPEMASK && SvREFCNT(sv)) { |
51371543 | 288 | (FCALL)(aTHXo_ sv); |
5226ed68 JH |
289 | ++visited; |
290 | } | |
8990e307 LW |
291 | } |
292 | } | |
5226ed68 | 293 | return visited; |
8990e307 LW |
294 | } |
295 | ||
645c22ef DM |
296 | /* called by sv_report_used() for each live SV */ |
297 | ||
298 | static void | |
299 | do_report_used(pTHXo_ SV *sv) | |
300 | { | |
301 | if (SvTYPE(sv) != SVTYPEMASK) { | |
302 | PerlIO_printf(Perl_debug_log, "****\n"); | |
303 | sv_dump(sv); | |
304 | } | |
305 | } | |
306 | ||
307 | /* | |
308 | =for apidoc sv_report_used | |
309 | ||
310 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
311 | ||
312 | =cut | |
313 | */ | |
314 | ||
8990e307 | 315 | void |
864dbfa3 | 316 | Perl_sv_report_used(pTHX) |
4561caa4 | 317 | { |
0b94c7bb | 318 | visit(do_report_used); |
4561caa4 CS |
319 | } |
320 | ||
645c22ef DM |
321 | /* called by sv_clean_objs() for each live SV */ |
322 | ||
323 | static void | |
324 | do_clean_objs(pTHXo_ SV *sv) | |
325 | { | |
326 | SV* rv; | |
327 | ||
328 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
329 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv))); | |
330 | if (SvWEAKREF(sv)) { | |
331 | sv_del_backref(sv); | |
332 | SvWEAKREF_off(sv); | |
333 | SvRV(sv) = 0; | |
334 | } else { | |
335 | SvROK_off(sv); | |
336 | SvRV(sv) = 0; | |
337 | SvREFCNT_dec(rv); | |
338 | } | |
339 | } | |
340 | ||
341 | /* XXX Might want to check arrays, etc. */ | |
342 | } | |
343 | ||
344 | /* called by sv_clean_objs() for each live SV */ | |
345 | ||
346 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
347 | static void | |
348 | do_clean_named_objs(pTHXo_ SV *sv) | |
349 | { | |
350 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
351 | if ( SvOBJECT(GvSV(sv)) || | |
352 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || | |
353 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
354 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
355 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
356 | { | |
357 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
358 | SvREFCNT_dec(sv); | |
359 | } | |
360 | } | |
361 | } | |
362 | #endif | |
363 | ||
364 | /* | |
365 | =for apidoc sv_clean_objs | |
366 | ||
367 | Attempt to destroy all objects not yet freed | |
368 | ||
369 | =cut | |
370 | */ | |
371 | ||
4561caa4 | 372 | void |
864dbfa3 | 373 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 374 | { |
3280af22 | 375 | PL_in_clean_objs = TRUE; |
0b94c7bb | 376 | visit(do_clean_objs); |
4561caa4 | 377 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 378 | /* some barnacles may yet remain, clinging to typeglobs */ |
0b94c7bb | 379 | visit(do_clean_named_objs); |
4561caa4 | 380 | #endif |
3280af22 | 381 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
382 | } |
383 | ||
645c22ef DM |
384 | /* called by sv_clean_all() for each live SV */ |
385 | ||
386 | static void | |
387 | do_clean_all(pTHXo_ SV *sv) | |
388 | { | |
389 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
390 | SvFLAGS(sv) |= SVf_BREAK; | |
391 | SvREFCNT_dec(sv); | |
392 | } | |
393 | ||
394 | /* | |
395 | =for apidoc sv_clean_all | |
396 | ||
397 | Decrement the refcnt of each remaining SV, possibly triggering a | |
398 | cleanup. This function may have to be called multiple times to free | |
399 | SVs which are in complex self-referential heirarchies. | |
400 | ||
401 | =cut | |
402 | */ | |
403 | ||
5226ed68 | 404 | I32 |
864dbfa3 | 405 | Perl_sv_clean_all(pTHX) |
8990e307 | 406 | { |
5226ed68 | 407 | I32 cleaned; |
3280af22 | 408 | PL_in_clean_all = TRUE; |
5226ed68 | 409 | cleaned = visit(do_clean_all); |
3280af22 | 410 | PL_in_clean_all = FALSE; |
5226ed68 | 411 | return cleaned; |
8990e307 | 412 | } |
463ee0b2 | 413 | |
645c22ef DM |
414 | /* |
415 | =for apidoc sv_free_arenas | |
416 | ||
417 | Deallocate the memory used by all arenas. Note that all the individual SV | |
418 | heads and bodies within the arenas must already have been freed. | |
419 | ||
420 | =cut | |
421 | */ | |
422 | ||
4633a7c4 | 423 | void |
864dbfa3 | 424 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
425 | { |
426 | SV* sva; | |
427 | SV* svanext; | |
612f20c3 | 428 | XPV *arena, *arenanext; |
4633a7c4 LW |
429 | |
430 | /* Free arenas here, but be careful about fake ones. (We assume | |
431 | contiguity of the fake ones with the corresponding real ones.) */ | |
432 | ||
3280af22 | 433 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
434 | svanext = (SV*) SvANY(sva); |
435 | while (svanext && SvFAKE(svanext)) | |
436 | svanext = (SV*) SvANY(svanext); | |
437 | ||
438 | if (!SvFAKE(sva)) | |
1edc1566 | 439 | Safefree((void *)sva); |
4633a7c4 | 440 | } |
5f05dabc | 441 | |
612f20c3 GS |
442 | for (arena = PL_xiv_arenaroot; arena; arena = arenanext) { |
443 | arenanext = (XPV*)arena->xpv_pv; | |
444 | Safefree(arena); | |
445 | } | |
446 | PL_xiv_arenaroot = 0; | |
447 | ||
448 | for (arena = PL_xnv_arenaroot; arena; arena = arenanext) { | |
449 | arenanext = (XPV*)arena->xpv_pv; | |
450 | Safefree(arena); | |
451 | } | |
452 | PL_xnv_arenaroot = 0; | |
453 | ||
454 | for (arena = PL_xrv_arenaroot; arena; arena = arenanext) { | |
455 | arenanext = (XPV*)arena->xpv_pv; | |
456 | Safefree(arena); | |
457 | } | |
458 | PL_xrv_arenaroot = 0; | |
459 | ||
460 | for (arena = PL_xpv_arenaroot; arena; arena = arenanext) { | |
461 | arenanext = (XPV*)arena->xpv_pv; | |
462 | Safefree(arena); | |
463 | } | |
464 | PL_xpv_arenaroot = 0; | |
465 | ||
466 | for (arena = (XPV*)PL_xpviv_arenaroot; arena; arena = arenanext) { | |
467 | arenanext = (XPV*)arena->xpv_pv; | |
468 | Safefree(arena); | |
469 | } | |
470 | PL_xpviv_arenaroot = 0; | |
471 | ||
472 | for (arena = (XPV*)PL_xpvnv_arenaroot; arena; arena = arenanext) { | |
473 | arenanext = (XPV*)arena->xpv_pv; | |
474 | Safefree(arena); | |
475 | } | |
476 | PL_xpvnv_arenaroot = 0; | |
477 | ||
478 | for (arena = (XPV*)PL_xpvcv_arenaroot; arena; arena = arenanext) { | |
479 | arenanext = (XPV*)arena->xpv_pv; | |
480 | Safefree(arena); | |
481 | } | |
482 | PL_xpvcv_arenaroot = 0; | |
483 | ||
484 | for (arena = (XPV*)PL_xpvav_arenaroot; arena; arena = arenanext) { | |
485 | arenanext = (XPV*)arena->xpv_pv; | |
486 | Safefree(arena); | |
487 | } | |
488 | PL_xpvav_arenaroot = 0; | |
489 | ||
490 | for (arena = (XPV*)PL_xpvhv_arenaroot; arena; arena = arenanext) { | |
491 | arenanext = (XPV*)arena->xpv_pv; | |
492 | Safefree(arena); | |
493 | } | |
494 | PL_xpvhv_arenaroot = 0; | |
495 | ||
496 | for (arena = (XPV*)PL_xpvmg_arenaroot; arena; arena = arenanext) { | |
497 | arenanext = (XPV*)arena->xpv_pv; | |
498 | Safefree(arena); | |
499 | } | |
500 | PL_xpvmg_arenaroot = 0; | |
501 | ||
502 | for (arena = (XPV*)PL_xpvlv_arenaroot; arena; arena = arenanext) { | |
503 | arenanext = (XPV*)arena->xpv_pv; | |
504 | Safefree(arena); | |
505 | } | |
506 | PL_xpvlv_arenaroot = 0; | |
507 | ||
508 | for (arena = (XPV*)PL_xpvbm_arenaroot; arena; arena = arenanext) { | |
509 | arenanext = (XPV*)arena->xpv_pv; | |
510 | Safefree(arena); | |
511 | } | |
512 | PL_xpvbm_arenaroot = 0; | |
513 | ||
514 | for (arena = (XPV*)PL_he_arenaroot; arena; arena = arenanext) { | |
515 | arenanext = (XPV*)arena->xpv_pv; | |
516 | Safefree(arena); | |
517 | } | |
518 | PL_he_arenaroot = 0; | |
519 | ||
3280af22 NIS |
520 | if (PL_nice_chunk) |
521 | Safefree(PL_nice_chunk); | |
522 | PL_nice_chunk = Nullch; | |
523 | PL_nice_chunk_size = 0; | |
524 | PL_sv_arenaroot = 0; | |
525 | PL_sv_root = 0; | |
4633a7c4 LW |
526 | } |
527 | ||
645c22ef DM |
528 | /* |
529 | =for apidoc report_uninit | |
530 | ||
531 | Print appropriate "Use of uninitialized variable" warning | |
532 | ||
533 | =cut | |
534 | */ | |
535 | ||
1d7c1841 GS |
536 | void |
537 | Perl_report_uninit(pTHX) | |
538 | { | |
539 | if (PL_op) | |
540 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, | |
541 | " in ", PL_op_desc[PL_op->op_type]); | |
542 | else | |
543 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, "", ""); | |
544 | } | |
545 | ||
645c22ef DM |
546 | /* grab a new IV body from the free list, allocating more if necessary */ |
547 | ||
76e3520e | 548 | STATIC XPVIV* |
cea2e8a9 | 549 | S_new_xiv(pTHX) |
463ee0b2 | 550 | { |
ea7c11a3 | 551 | IV* xiv; |
cbe51380 GS |
552 | LOCK_SV_MUTEX; |
553 | if (!PL_xiv_root) | |
554 | more_xiv(); | |
555 | xiv = PL_xiv_root; | |
556 | /* | |
557 | * See comment in more_xiv() -- RAM. | |
558 | */ | |
559 | PL_xiv_root = *(IV**)xiv; | |
560 | UNLOCK_SV_MUTEX; | |
561 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
562 | } |
563 | ||
645c22ef DM |
564 | /* return an IV body to the free list */ |
565 | ||
76e3520e | 566 | STATIC void |
cea2e8a9 | 567 | S_del_xiv(pTHX_ XPVIV *p) |
463ee0b2 | 568 | { |
23e6a22f | 569 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 570 | LOCK_SV_MUTEX; |
3280af22 NIS |
571 | *(IV**)xiv = PL_xiv_root; |
572 | PL_xiv_root = xiv; | |
cbe51380 | 573 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
574 | } |
575 | ||
645c22ef DM |
576 | /* allocate another arena's worth of IV bodies */ |
577 | ||
cbe51380 | 578 | STATIC void |
cea2e8a9 | 579 | S_more_xiv(pTHX) |
463ee0b2 | 580 | { |
ea7c11a3 SM |
581 | register IV* xiv; |
582 | register IV* xivend; | |
8c52afec IZ |
583 | XPV* ptr; |
584 | New(705, ptr, 1008/sizeof(XPV), XPV); | |
645c22ef | 585 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
3280af22 | 586 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ |
a0d0e21e | 587 | |
ea7c11a3 SM |
588 | xiv = (IV*) ptr; |
589 | xivend = &xiv[1008 / sizeof(IV) - 1]; | |
645c22ef | 590 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ |
3280af22 | 591 | PL_xiv_root = xiv; |
463ee0b2 | 592 | while (xiv < xivend) { |
ea7c11a3 | 593 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
594 | xiv++; |
595 | } | |
ea7c11a3 | 596 | *(IV**)xiv = 0; |
463ee0b2 LW |
597 | } |
598 | ||
645c22ef DM |
599 | /* grab a new NV body from the free list, allocating more if necessary */ |
600 | ||
76e3520e | 601 | STATIC XPVNV* |
cea2e8a9 | 602 | S_new_xnv(pTHX) |
463ee0b2 | 603 | { |
65202027 | 604 | NV* xnv; |
cbe51380 GS |
605 | LOCK_SV_MUTEX; |
606 | if (!PL_xnv_root) | |
607 | more_xnv(); | |
608 | xnv = PL_xnv_root; | |
65202027 | 609 | PL_xnv_root = *(NV**)xnv; |
cbe51380 GS |
610 | UNLOCK_SV_MUTEX; |
611 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
612 | } |
613 | ||
645c22ef DM |
614 | /* return an NV body to the free list */ |
615 | ||
76e3520e | 616 | STATIC void |
cea2e8a9 | 617 | S_del_xnv(pTHX_ XPVNV *p) |
463ee0b2 | 618 | { |
65202027 | 619 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 620 | LOCK_SV_MUTEX; |
65202027 | 621 | *(NV**)xnv = PL_xnv_root; |
3280af22 | 622 | PL_xnv_root = xnv; |
cbe51380 | 623 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
624 | } |
625 | ||
645c22ef DM |
626 | /* allocate another arena's worth of NV bodies */ |
627 | ||
cbe51380 | 628 | STATIC void |
cea2e8a9 | 629 | S_more_xnv(pTHX) |
463ee0b2 | 630 | { |
65202027 DS |
631 | register NV* xnv; |
632 | register NV* xnvend; | |
612f20c3 GS |
633 | XPV *ptr; |
634 | New(711, ptr, 1008/sizeof(XPV), XPV); | |
635 | ptr->xpv_pv = (char*)PL_xnv_arenaroot; | |
636 | PL_xnv_arenaroot = ptr; | |
637 | ||
638 | xnv = (NV*) ptr; | |
65202027 DS |
639 | xnvend = &xnv[1008 / sizeof(NV) - 1]; |
640 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ | |
3280af22 | 641 | PL_xnv_root = xnv; |
463ee0b2 | 642 | while (xnv < xnvend) { |
65202027 | 643 | *(NV**)xnv = (NV*)(xnv + 1); |
463ee0b2 LW |
644 | xnv++; |
645 | } | |
65202027 | 646 | *(NV**)xnv = 0; |
463ee0b2 LW |
647 | } |
648 | ||
645c22ef DM |
649 | /* grab a new struct xrv from the free list, allocating more if necessary */ |
650 | ||
76e3520e | 651 | STATIC XRV* |
cea2e8a9 | 652 | S_new_xrv(pTHX) |
ed6116ce LW |
653 | { |
654 | XRV* xrv; | |
cbe51380 GS |
655 | LOCK_SV_MUTEX; |
656 | if (!PL_xrv_root) | |
657 | more_xrv(); | |
658 | xrv = PL_xrv_root; | |
659 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
660 | UNLOCK_SV_MUTEX; | |
661 | return xrv; | |
ed6116ce LW |
662 | } |
663 | ||
645c22ef DM |
664 | /* return a struct xrv to the free list */ |
665 | ||
76e3520e | 666 | STATIC void |
cea2e8a9 | 667 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 668 | { |
cbe51380 | 669 | LOCK_SV_MUTEX; |
3280af22 NIS |
670 | p->xrv_rv = (SV*)PL_xrv_root; |
671 | PL_xrv_root = p; | |
cbe51380 | 672 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
673 | } |
674 | ||
645c22ef DM |
675 | /* allocate another arena's worth of struct xrv */ |
676 | ||
cbe51380 | 677 | STATIC void |
cea2e8a9 | 678 | S_more_xrv(pTHX) |
ed6116ce | 679 | { |
ed6116ce LW |
680 | register XRV* xrv; |
681 | register XRV* xrvend; | |
612f20c3 GS |
682 | XPV *ptr; |
683 | New(712, ptr, 1008/sizeof(XPV), XPV); | |
684 | ptr->xpv_pv = (char*)PL_xrv_arenaroot; | |
685 | PL_xrv_arenaroot = ptr; | |
686 | ||
687 | xrv = (XRV*) ptr; | |
ed6116ce | 688 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
612f20c3 GS |
689 | xrv += (sizeof(XPV) - 1) / sizeof(XRV) + 1; |
690 | PL_xrv_root = xrv; | |
ed6116ce LW |
691 | while (xrv < xrvend) { |
692 | xrv->xrv_rv = (SV*)(xrv + 1); | |
693 | xrv++; | |
694 | } | |
695 | xrv->xrv_rv = 0; | |
ed6116ce LW |
696 | } |
697 | ||
645c22ef DM |
698 | /* grab a new struct xpv from the free list, allocating more if necessary */ |
699 | ||
76e3520e | 700 | STATIC XPV* |
cea2e8a9 | 701 | S_new_xpv(pTHX) |
463ee0b2 LW |
702 | { |
703 | XPV* xpv; | |
cbe51380 GS |
704 | LOCK_SV_MUTEX; |
705 | if (!PL_xpv_root) | |
706 | more_xpv(); | |
707 | xpv = PL_xpv_root; | |
708 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
709 | UNLOCK_SV_MUTEX; | |
710 | return xpv; | |
463ee0b2 LW |
711 | } |
712 | ||
645c22ef DM |
713 | /* return a struct xpv to the free list */ |
714 | ||
76e3520e | 715 | STATIC void |
cea2e8a9 | 716 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 717 | { |
cbe51380 | 718 | LOCK_SV_MUTEX; |
3280af22 NIS |
719 | p->xpv_pv = (char*)PL_xpv_root; |
720 | PL_xpv_root = p; | |
cbe51380 | 721 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
722 | } |
723 | ||
645c22ef DM |
724 | /* allocate another arena's worth of struct xpv */ |
725 | ||
cbe51380 | 726 | STATIC void |
cea2e8a9 | 727 | S_more_xpv(pTHX) |
463ee0b2 | 728 | { |
463ee0b2 LW |
729 | register XPV* xpv; |
730 | register XPV* xpvend; | |
612f20c3 GS |
731 | New(713, xpv, 1008/sizeof(XPV), XPV); |
732 | xpv->xpv_pv = (char*)PL_xpv_arenaroot; | |
733 | PL_xpv_arenaroot = xpv; | |
734 | ||
463ee0b2 | 735 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
612f20c3 | 736 | PL_xpv_root = ++xpv; |
463ee0b2 LW |
737 | while (xpv < xpvend) { |
738 | xpv->xpv_pv = (char*)(xpv + 1); | |
739 | xpv++; | |
740 | } | |
741 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
742 | } |
743 | ||
645c22ef DM |
744 | /* grab a new struct xpviv from the free list, allocating more if necessary */ |
745 | ||
932e9ff9 VB |
746 | STATIC XPVIV* |
747 | S_new_xpviv(pTHX) | |
748 | { | |
749 | XPVIV* xpviv; | |
750 | LOCK_SV_MUTEX; | |
751 | if (!PL_xpviv_root) | |
752 | more_xpviv(); | |
753 | xpviv = PL_xpviv_root; | |
754 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
755 | UNLOCK_SV_MUTEX; | |
756 | return xpviv; | |
757 | } | |
758 | ||
645c22ef DM |
759 | /* return a struct xpviv to the free list */ |
760 | ||
932e9ff9 VB |
761 | STATIC void |
762 | S_del_xpviv(pTHX_ XPVIV *p) | |
763 | { | |
764 | LOCK_SV_MUTEX; | |
765 | p->xpv_pv = (char*)PL_xpviv_root; | |
766 | PL_xpviv_root = p; | |
767 | UNLOCK_SV_MUTEX; | |
768 | } | |
769 | ||
645c22ef DM |
770 | /* allocate another arena's worth of struct xpviv */ |
771 | ||
932e9ff9 VB |
772 | STATIC void |
773 | S_more_xpviv(pTHX) | |
774 | { | |
775 | register XPVIV* xpviv; | |
776 | register XPVIV* xpvivend; | |
612f20c3 GS |
777 | New(714, xpviv, 1008/sizeof(XPVIV), XPVIV); |
778 | xpviv->xpv_pv = (char*)PL_xpviv_arenaroot; | |
779 | PL_xpviv_arenaroot = xpviv; | |
780 | ||
932e9ff9 | 781 | xpvivend = &xpviv[1008 / sizeof(XPVIV) - 1]; |
612f20c3 | 782 | PL_xpviv_root = ++xpviv; |
932e9ff9 VB |
783 | while (xpviv < xpvivend) { |
784 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
785 | xpviv++; | |
786 | } | |
787 | xpviv->xpv_pv = 0; | |
788 | } | |
789 | ||
645c22ef DM |
790 | /* grab a new struct xpvnv from the free list, allocating more if necessary */ |
791 | ||
932e9ff9 VB |
792 | STATIC XPVNV* |
793 | S_new_xpvnv(pTHX) | |
794 | { | |
795 | XPVNV* xpvnv; | |
796 | LOCK_SV_MUTEX; | |
797 | if (!PL_xpvnv_root) | |
798 | more_xpvnv(); | |
799 | xpvnv = PL_xpvnv_root; | |
800 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
801 | UNLOCK_SV_MUTEX; | |
802 | return xpvnv; | |
803 | } | |
804 | ||
645c22ef DM |
805 | /* return a struct xpvnv to the free list */ |
806 | ||
932e9ff9 VB |
807 | STATIC void |
808 | S_del_xpvnv(pTHX_ XPVNV *p) | |
809 | { | |
810 | LOCK_SV_MUTEX; | |
811 | p->xpv_pv = (char*)PL_xpvnv_root; | |
812 | PL_xpvnv_root = p; | |
813 | UNLOCK_SV_MUTEX; | |
814 | } | |
815 | ||
645c22ef DM |
816 | /* allocate another arena's worth of struct xpvnv */ |
817 | ||
932e9ff9 VB |
818 | STATIC void |
819 | S_more_xpvnv(pTHX) | |
820 | { | |
821 | register XPVNV* xpvnv; | |
822 | register XPVNV* xpvnvend; | |
612f20c3 GS |
823 | New(715, xpvnv, 1008/sizeof(XPVNV), XPVNV); |
824 | xpvnv->xpv_pv = (char*)PL_xpvnv_arenaroot; | |
825 | PL_xpvnv_arenaroot = xpvnv; | |
826 | ||
932e9ff9 | 827 | xpvnvend = &xpvnv[1008 / sizeof(XPVNV) - 1]; |
612f20c3 | 828 | PL_xpvnv_root = ++xpvnv; |
932e9ff9 VB |
829 | while (xpvnv < xpvnvend) { |
830 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
831 | xpvnv++; | |
832 | } | |
833 | xpvnv->xpv_pv = 0; | |
834 | } | |
835 | ||
645c22ef DM |
836 | /* grab a new struct xpvcv from the free list, allocating more if necessary */ |
837 | ||
932e9ff9 VB |
838 | STATIC XPVCV* |
839 | S_new_xpvcv(pTHX) | |
840 | { | |
841 | XPVCV* xpvcv; | |
842 | LOCK_SV_MUTEX; | |
843 | if (!PL_xpvcv_root) | |
844 | more_xpvcv(); | |
845 | xpvcv = PL_xpvcv_root; | |
846 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
847 | UNLOCK_SV_MUTEX; | |
848 | return xpvcv; | |
849 | } | |
850 | ||
645c22ef DM |
851 | /* return a struct xpvcv to the free list */ |
852 | ||
932e9ff9 VB |
853 | STATIC void |
854 | S_del_xpvcv(pTHX_ XPVCV *p) | |
855 | { | |
856 | LOCK_SV_MUTEX; | |
857 | p->xpv_pv = (char*)PL_xpvcv_root; | |
858 | PL_xpvcv_root = p; | |
859 | UNLOCK_SV_MUTEX; | |
860 | } | |
861 | ||
645c22ef DM |
862 | /* allocate another arena's worth of struct xpvcv */ |
863 | ||
932e9ff9 VB |
864 | STATIC void |
865 | S_more_xpvcv(pTHX) | |
866 | { | |
867 | register XPVCV* xpvcv; | |
868 | register XPVCV* xpvcvend; | |
612f20c3 GS |
869 | New(716, xpvcv, 1008/sizeof(XPVCV), XPVCV); |
870 | xpvcv->xpv_pv = (char*)PL_xpvcv_arenaroot; | |
871 | PL_xpvcv_arenaroot = xpvcv; | |
872 | ||
932e9ff9 | 873 | xpvcvend = &xpvcv[1008 / sizeof(XPVCV) - 1]; |
612f20c3 | 874 | PL_xpvcv_root = ++xpvcv; |
932e9ff9 VB |
875 | while (xpvcv < xpvcvend) { |
876 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
877 | xpvcv++; | |
878 | } | |
879 | xpvcv->xpv_pv = 0; | |
880 | } | |
881 | ||
645c22ef DM |
882 | /* grab a new struct xpvav from the free list, allocating more if necessary */ |
883 | ||
932e9ff9 VB |
884 | STATIC XPVAV* |
885 | S_new_xpvav(pTHX) | |
886 | { | |
887 | XPVAV* xpvav; | |
888 | LOCK_SV_MUTEX; | |
889 | if (!PL_xpvav_root) | |
890 | more_xpvav(); | |
891 | xpvav = PL_xpvav_root; | |
892 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
893 | UNLOCK_SV_MUTEX; | |
894 | return xpvav; | |
895 | } | |
896 | ||
645c22ef DM |
897 | /* return a struct xpvav to the free list */ |
898 | ||
932e9ff9 VB |
899 | STATIC void |
900 | S_del_xpvav(pTHX_ XPVAV *p) | |
901 | { | |
902 | LOCK_SV_MUTEX; | |
903 | p->xav_array = (char*)PL_xpvav_root; | |
904 | PL_xpvav_root = p; | |
905 | UNLOCK_SV_MUTEX; | |
906 | } | |
907 | ||
645c22ef DM |
908 | /* allocate another arena's worth of struct xpvav */ |
909 | ||
932e9ff9 VB |
910 | STATIC void |
911 | S_more_xpvav(pTHX) | |
912 | { | |
913 | register XPVAV* xpvav; | |
914 | register XPVAV* xpvavend; | |
612f20c3 GS |
915 | New(717, xpvav, 1008/sizeof(XPVAV), XPVAV); |
916 | xpvav->xav_array = (char*)PL_xpvav_arenaroot; | |
917 | PL_xpvav_arenaroot = xpvav; | |
918 | ||
932e9ff9 | 919 | xpvavend = &xpvav[1008 / sizeof(XPVAV) - 1]; |
612f20c3 | 920 | PL_xpvav_root = ++xpvav; |
932e9ff9 VB |
921 | while (xpvav < xpvavend) { |
922 | xpvav->xav_array = (char*)(xpvav + 1); | |
923 | xpvav++; | |
924 | } | |
925 | xpvav->xav_array = 0; | |
926 | } | |
927 | ||
645c22ef DM |
928 | /* grab a new struct xpvhv from the free list, allocating more if necessary */ |
929 | ||
932e9ff9 VB |
930 | STATIC XPVHV* |
931 | S_new_xpvhv(pTHX) | |
932 | { | |
933 | XPVHV* xpvhv; | |
934 | LOCK_SV_MUTEX; | |
935 | if (!PL_xpvhv_root) | |
936 | more_xpvhv(); | |
937 | xpvhv = PL_xpvhv_root; | |
938 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
939 | UNLOCK_SV_MUTEX; | |
940 | return xpvhv; | |
941 | } | |
942 | ||
645c22ef DM |
943 | /* return a struct xpvhv to the free list */ |
944 | ||
932e9ff9 VB |
945 | STATIC void |
946 | S_del_xpvhv(pTHX_ XPVHV *p) | |
947 | { | |
948 | LOCK_SV_MUTEX; | |
949 | p->xhv_array = (char*)PL_xpvhv_root; | |
950 | PL_xpvhv_root = p; | |
951 | UNLOCK_SV_MUTEX; | |
952 | } | |
953 | ||
645c22ef DM |
954 | /* allocate another arena's worth of struct xpvhv */ |
955 | ||
932e9ff9 VB |
956 | STATIC void |
957 | S_more_xpvhv(pTHX) | |
958 | { | |
959 | register XPVHV* xpvhv; | |
960 | register XPVHV* xpvhvend; | |
612f20c3 GS |
961 | New(718, xpvhv, 1008/sizeof(XPVHV), XPVHV); |
962 | xpvhv->xhv_array = (char*)PL_xpvhv_arenaroot; | |
963 | PL_xpvhv_arenaroot = xpvhv; | |
964 | ||
932e9ff9 | 965 | xpvhvend = &xpvhv[1008 / sizeof(XPVHV) - 1]; |
612f20c3 | 966 | PL_xpvhv_root = ++xpvhv; |
932e9ff9 VB |
967 | while (xpvhv < xpvhvend) { |
968 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
969 | xpvhv++; | |
970 | } | |
971 | xpvhv->xhv_array = 0; | |
972 | } | |
973 | ||
645c22ef DM |
974 | /* grab a new struct xpvmg from the free list, allocating more if necessary */ |
975 | ||
932e9ff9 VB |
976 | STATIC XPVMG* |
977 | S_new_xpvmg(pTHX) | |
978 | { | |
979 | XPVMG* xpvmg; | |
980 | LOCK_SV_MUTEX; | |
981 | if (!PL_xpvmg_root) | |
982 | more_xpvmg(); | |
983 | xpvmg = PL_xpvmg_root; | |
984 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
985 | UNLOCK_SV_MUTEX; | |
986 | return xpvmg; | |
987 | } | |
988 | ||
645c22ef DM |
989 | /* return a struct xpvmg to the free list */ |
990 | ||
932e9ff9 VB |
991 | STATIC void |
992 | S_del_xpvmg(pTHX_ XPVMG *p) | |
993 | { | |
994 | LOCK_SV_MUTEX; | |
995 | p->xpv_pv = (char*)PL_xpvmg_root; | |
996 | PL_xpvmg_root = p; | |
997 | UNLOCK_SV_MUTEX; | |
998 | } | |
999 | ||
645c22ef DM |
1000 | /* allocate another arena's worth of struct xpvmg */ |
1001 | ||
932e9ff9 VB |
1002 | STATIC void |
1003 | S_more_xpvmg(pTHX) | |
1004 | { | |
1005 | register XPVMG* xpvmg; | |
1006 | register XPVMG* xpvmgend; | |
612f20c3 GS |
1007 | New(719, xpvmg, 1008/sizeof(XPVMG), XPVMG); |
1008 | xpvmg->xpv_pv = (char*)PL_xpvmg_arenaroot; | |
1009 | PL_xpvmg_arenaroot = xpvmg; | |
1010 | ||
932e9ff9 | 1011 | xpvmgend = &xpvmg[1008 / sizeof(XPVMG) - 1]; |
612f20c3 | 1012 | PL_xpvmg_root = ++xpvmg; |
932e9ff9 VB |
1013 | while (xpvmg < xpvmgend) { |
1014 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
1015 | xpvmg++; | |
1016 | } | |
1017 | xpvmg->xpv_pv = 0; | |
1018 | } | |
1019 | ||
645c22ef DM |
1020 | /* grab a new struct xpvlv from the free list, allocating more if necessary */ |
1021 | ||
932e9ff9 VB |
1022 | STATIC XPVLV* |
1023 | S_new_xpvlv(pTHX) | |
1024 | { | |
1025 | XPVLV* xpvlv; | |
1026 | LOCK_SV_MUTEX; | |
1027 | if (!PL_xpvlv_root) | |
1028 | more_xpvlv(); | |
1029 | xpvlv = PL_xpvlv_root; | |
1030 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
1031 | UNLOCK_SV_MUTEX; | |
1032 | return xpvlv; | |
1033 | } | |
1034 | ||
645c22ef DM |
1035 | /* return a struct xpvlv to the free list */ |
1036 | ||
932e9ff9 VB |
1037 | STATIC void |
1038 | S_del_xpvlv(pTHX_ XPVLV *p) | |
1039 | { | |
1040 | LOCK_SV_MUTEX; | |
1041 | p->xpv_pv = (char*)PL_xpvlv_root; | |
1042 | PL_xpvlv_root = p; | |
1043 | UNLOCK_SV_MUTEX; | |
1044 | } | |
1045 | ||
645c22ef DM |
1046 | /* allocate another arena's worth of struct xpvlv */ |
1047 | ||
932e9ff9 VB |
1048 | STATIC void |
1049 | S_more_xpvlv(pTHX) | |
1050 | { | |
1051 | register XPVLV* xpvlv; | |
1052 | register XPVLV* xpvlvend; | |
612f20c3 GS |
1053 | New(720, xpvlv, 1008/sizeof(XPVLV), XPVLV); |
1054 | xpvlv->xpv_pv = (char*)PL_xpvlv_arenaroot; | |
1055 | PL_xpvlv_arenaroot = xpvlv; | |
1056 | ||
932e9ff9 | 1057 | xpvlvend = &xpvlv[1008 / sizeof(XPVLV) - 1]; |
612f20c3 | 1058 | PL_xpvlv_root = ++xpvlv; |
932e9ff9 VB |
1059 | while (xpvlv < xpvlvend) { |
1060 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
1061 | xpvlv++; | |
1062 | } | |
1063 | xpvlv->xpv_pv = 0; | |
1064 | } | |
1065 | ||
645c22ef DM |
1066 | /* grab a new struct xpvbm from the free list, allocating more if necessary */ |
1067 | ||
932e9ff9 VB |
1068 | STATIC XPVBM* |
1069 | S_new_xpvbm(pTHX) | |
1070 | { | |
1071 | XPVBM* xpvbm; | |
1072 | LOCK_SV_MUTEX; | |
1073 | if (!PL_xpvbm_root) | |
1074 | more_xpvbm(); | |
1075 | xpvbm = PL_xpvbm_root; | |
1076 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
1077 | UNLOCK_SV_MUTEX; | |
1078 | return xpvbm; | |
1079 | } | |
1080 | ||
645c22ef DM |
1081 | /* return a struct xpvbm to the free list */ |
1082 | ||
932e9ff9 VB |
1083 | STATIC void |
1084 | S_del_xpvbm(pTHX_ XPVBM *p) | |
1085 | { | |
1086 | LOCK_SV_MUTEX; | |
1087 | p->xpv_pv = (char*)PL_xpvbm_root; | |
1088 | PL_xpvbm_root = p; | |
1089 | UNLOCK_SV_MUTEX; | |
1090 | } | |
1091 | ||
645c22ef DM |
1092 | /* allocate another arena's worth of struct xpvbm */ |
1093 | ||
932e9ff9 VB |
1094 | STATIC void |
1095 | S_more_xpvbm(pTHX) | |
1096 | { | |
1097 | register XPVBM* xpvbm; | |
1098 | register XPVBM* xpvbmend; | |
612f20c3 GS |
1099 | New(721, xpvbm, 1008/sizeof(XPVBM), XPVBM); |
1100 | xpvbm->xpv_pv = (char*)PL_xpvbm_arenaroot; | |
1101 | PL_xpvbm_arenaroot = xpvbm; | |
1102 | ||
932e9ff9 | 1103 | xpvbmend = &xpvbm[1008 / sizeof(XPVBM) - 1]; |
612f20c3 | 1104 | PL_xpvbm_root = ++xpvbm; |
932e9ff9 VB |
1105 | while (xpvbm < xpvbmend) { |
1106 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
1107 | xpvbm++; | |
1108 | } | |
1109 | xpvbm->xpv_pv = 0; | |
1110 | } | |
1111 | ||
d33b2eba GS |
1112 | #ifdef LEAKTEST |
1113 | # define my_safemalloc(s) (void*)safexmalloc(717,s) | |
1114 | # define my_safefree(p) safexfree((char*)p) | |
1115 | #else | |
1116 | # define my_safemalloc(s) (void*)safemalloc(s) | |
1117 | # define my_safefree(p) safefree((char*)p) | |
1118 | #endif | |
463ee0b2 | 1119 | |
d33b2eba | 1120 | #ifdef PURIFY |
463ee0b2 | 1121 | |
d33b2eba GS |
1122 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
1123 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 1124 | |
d33b2eba GS |
1125 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1126 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1127 | |
d33b2eba GS |
1128 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
1129 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 1130 | |
d33b2eba GS |
1131 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1132 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1133 | |
d33b2eba GS |
1134 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1135 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1136 | |
d33b2eba GS |
1137 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1138 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1139 | |
d33b2eba GS |
1140 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1141 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1142 | |
d33b2eba GS |
1143 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1144 | #define del_XPVAV(p) my_safefree(p) | |
1145 | ||
1146 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1147 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1148 | |
d33b2eba GS |
1149 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1150 | #define del_XPVMG(p) my_safefree(p) | |
1151 | ||
1152 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) | |
1153 | #define del_XPVLV(p) my_safefree(p) | |
1154 | ||
1155 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1156 | #define del_XPVBM(p) my_safefree(p) | |
1157 | ||
1158 | #else /* !PURIFY */ | |
1159 | ||
1160 | #define new_XIV() (void*)new_xiv() | |
1161 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
1162 | ||
1163 | #define new_XNV() (void*)new_xnv() | |
1164 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 1165 | |
d33b2eba GS |
1166 | #define new_XRV() (void*)new_xrv() |
1167 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 1168 | |
d33b2eba GS |
1169 | #define new_XPV() (void*)new_xpv() |
1170 | #define del_XPV(p) del_xpv((XPV *)p) | |
1171 | ||
1172 | #define new_XPVIV() (void*)new_xpviv() | |
1173 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
1174 | ||
1175 | #define new_XPVNV() (void*)new_xpvnv() | |
1176 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
1177 | ||
1178 | #define new_XPVCV() (void*)new_xpvcv() | |
1179 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
1180 | ||
1181 | #define new_XPVAV() (void*)new_xpvav() | |
1182 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
1183 | ||
1184 | #define new_XPVHV() (void*)new_xpvhv() | |
1185 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
1c846c1f | 1186 | |
d33b2eba GS |
1187 | #define new_XPVMG() (void*)new_xpvmg() |
1188 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
1189 | ||
1190 | #define new_XPVLV() (void*)new_xpvlv() | |
1191 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
1192 | ||
1193 | #define new_XPVBM() (void*)new_xpvbm() | |
1194 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
1195 | ||
1196 | #endif /* PURIFY */ | |
9b94d1dd | 1197 | |
d33b2eba GS |
1198 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1199 | #define del_XPVGV(p) my_safefree(p) | |
1c846c1f | 1200 | |
d33b2eba GS |
1201 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1202 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1203 | |
d33b2eba GS |
1204 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1205 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1206 | |
954c1994 GS |
1207 | /* |
1208 | =for apidoc sv_upgrade | |
1209 | ||
645c22ef DM |
1210 | Upgrade an SV to a more complex form. Gnenerally adds a new body type to the |
1211 | SV, then copies across as much information as possible from the old body. | |
1212 | You genrally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. | |
954c1994 GS |
1213 | |
1214 | =cut | |
1215 | */ | |
1216 | ||
79072805 | 1217 | bool |
864dbfa3 | 1218 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 LW |
1219 | { |
1220 | char* pv; | |
1221 | U32 cur; | |
1222 | U32 len; | |
a0d0e21e | 1223 | IV iv; |
65202027 | 1224 | NV nv; |
79072805 LW |
1225 | MAGIC* magic; |
1226 | HV* stash; | |
1227 | ||
f130fd45 NIS |
1228 | if (mt != SVt_PV && SvREADONLY(sv) && SvFAKE(sv)) { |
1229 | sv_force_normal(sv); | |
1230 | } | |
1231 | ||
79072805 LW |
1232 | if (SvTYPE(sv) == mt) |
1233 | return TRUE; | |
1234 | ||
a5f75d66 AD |
1235 | if (mt < SVt_PVIV) |
1236 | (void)SvOOK_off(sv); | |
1237 | ||
79072805 LW |
1238 | switch (SvTYPE(sv)) { |
1239 | case SVt_NULL: | |
1240 | pv = 0; | |
1241 | cur = 0; | |
1242 | len = 0; | |
1243 | iv = 0; | |
1244 | nv = 0.0; | |
1245 | magic = 0; | |
1246 | stash = 0; | |
1247 | break; | |
79072805 LW |
1248 | case SVt_IV: |
1249 | pv = 0; | |
1250 | cur = 0; | |
1251 | len = 0; | |
463ee0b2 | 1252 | iv = SvIVX(sv); |
65202027 | 1253 | nv = (NV)SvIVX(sv); |
79072805 LW |
1254 | del_XIV(SvANY(sv)); |
1255 | magic = 0; | |
1256 | stash = 0; | |
ed6116ce | 1257 | if (mt == SVt_NV) |
463ee0b2 | 1258 | mt = SVt_PVNV; |
ed6116ce LW |
1259 | else if (mt < SVt_PVIV) |
1260 | mt = SVt_PVIV; | |
79072805 LW |
1261 | break; |
1262 | case SVt_NV: | |
1263 | pv = 0; | |
1264 | cur = 0; | |
1265 | len = 0; | |
463ee0b2 | 1266 | nv = SvNVX(sv); |
1bd302c3 | 1267 | iv = I_V(nv); |
79072805 LW |
1268 | magic = 0; |
1269 | stash = 0; | |
1270 | del_XNV(SvANY(sv)); | |
1271 | SvANY(sv) = 0; | |
ed6116ce | 1272 | if (mt < SVt_PVNV) |
79072805 LW |
1273 | mt = SVt_PVNV; |
1274 | break; | |
ed6116ce LW |
1275 | case SVt_RV: |
1276 | pv = (char*)SvRV(sv); | |
1277 | cur = 0; | |
1278 | len = 0; | |
56431972 RB |
1279 | iv = PTR2IV(pv); |
1280 | nv = PTR2NV(pv); | |
ed6116ce LW |
1281 | del_XRV(SvANY(sv)); |
1282 | magic = 0; | |
1283 | stash = 0; | |
1284 | break; | |
79072805 | 1285 | case SVt_PV: |
463ee0b2 | 1286 | pv = SvPVX(sv); |
79072805 LW |
1287 | cur = SvCUR(sv); |
1288 | len = SvLEN(sv); | |
1289 | iv = 0; | |
1290 | nv = 0.0; | |
1291 | magic = 0; | |
1292 | stash = 0; | |
1293 | del_XPV(SvANY(sv)); | |
748a9306 LW |
1294 | if (mt <= SVt_IV) |
1295 | mt = SVt_PVIV; | |
1296 | else if (mt == SVt_NV) | |
1297 | mt = SVt_PVNV; | |
79072805 LW |
1298 | break; |
1299 | case SVt_PVIV: | |
463ee0b2 | 1300 | pv = SvPVX(sv); |
79072805 LW |
1301 | cur = SvCUR(sv); |
1302 | len = SvLEN(sv); | |
463ee0b2 | 1303 | iv = SvIVX(sv); |
79072805 LW |
1304 | nv = 0.0; |
1305 | magic = 0; | |
1306 | stash = 0; | |
1307 | del_XPVIV(SvANY(sv)); | |
1308 | break; | |
1309 | case SVt_PVNV: | |
463ee0b2 | 1310 | pv = SvPVX(sv); |
79072805 LW |
1311 | cur = SvCUR(sv); |
1312 | len = SvLEN(sv); | |
463ee0b2 LW |
1313 | iv = SvIVX(sv); |
1314 | nv = SvNVX(sv); | |
79072805 LW |
1315 | magic = 0; |
1316 | stash = 0; | |
1317 | del_XPVNV(SvANY(sv)); | |
1318 | break; | |
1319 | case SVt_PVMG: | |
463ee0b2 | 1320 | pv = SvPVX(sv); |
79072805 LW |
1321 | cur = SvCUR(sv); |
1322 | len = SvLEN(sv); | |
463ee0b2 LW |
1323 | iv = SvIVX(sv); |
1324 | nv = SvNVX(sv); | |
79072805 LW |
1325 | magic = SvMAGIC(sv); |
1326 | stash = SvSTASH(sv); | |
1327 | del_XPVMG(SvANY(sv)); | |
1328 | break; | |
1329 | default: | |
cea2e8a9 | 1330 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1331 | } |
1332 | ||
1333 | switch (mt) { | |
1334 | case SVt_NULL: | |
cea2e8a9 | 1335 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1336 | case SVt_IV: |
1337 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 1338 | SvIVX(sv) = iv; |
79072805 LW |
1339 | break; |
1340 | case SVt_NV: | |
1341 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 1342 | SvNVX(sv) = nv; |
79072805 | 1343 | break; |
ed6116ce LW |
1344 | case SVt_RV: |
1345 | SvANY(sv) = new_XRV(); | |
1346 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 1347 | break; |
79072805 LW |
1348 | case SVt_PV: |
1349 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 1350 | SvPVX(sv) = pv; |
79072805 LW |
1351 | SvCUR(sv) = cur; |
1352 | SvLEN(sv) = len; | |
1353 | break; | |
1354 | case SVt_PVIV: | |
1355 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 1356 | SvPVX(sv) = pv; |
79072805 LW |
1357 | SvCUR(sv) = cur; |
1358 | SvLEN(sv) = len; | |
463ee0b2 | 1359 | SvIVX(sv) = iv; |
79072805 | 1360 | if (SvNIOK(sv)) |
a0d0e21e | 1361 | (void)SvIOK_on(sv); |
79072805 LW |
1362 | SvNOK_off(sv); |
1363 | break; | |
1364 | case SVt_PVNV: | |
1365 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 1366 | SvPVX(sv) = pv; |
79072805 LW |
1367 | SvCUR(sv) = cur; |
1368 | SvLEN(sv) = len; | |
463ee0b2 LW |
1369 | SvIVX(sv) = iv; |
1370 | SvNVX(sv) = nv; | |
79072805 LW |
1371 | break; |
1372 | case SVt_PVMG: | |
1373 | SvANY(sv) = new_XPVMG(); | |
463ee0b2 | 1374 | SvPVX(sv) = pv; |
79072805 LW |
1375 | SvCUR(sv) = cur; |
1376 | SvLEN(sv) = len; | |
463ee0b2 LW |
1377 | SvIVX(sv) = iv; |
1378 | SvNVX(sv) = nv; | |
79072805 LW |
1379 | SvMAGIC(sv) = magic; |
1380 | SvSTASH(sv) = stash; | |
1381 | break; | |
1382 | case SVt_PVLV: | |
1383 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 1384 | SvPVX(sv) = pv; |
79072805 LW |
1385 | SvCUR(sv) = cur; |
1386 | SvLEN(sv) = len; | |
463ee0b2 LW |
1387 | SvIVX(sv) = iv; |
1388 | SvNVX(sv) = nv; | |
79072805 LW |
1389 | SvMAGIC(sv) = magic; |
1390 | SvSTASH(sv) = stash; | |
1391 | LvTARGOFF(sv) = 0; | |
1392 | LvTARGLEN(sv) = 0; | |
1393 | LvTARG(sv) = 0; | |
1394 | LvTYPE(sv) = 0; | |
1395 | break; | |
1396 | case SVt_PVAV: | |
1397 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
1398 | if (pv) |
1399 | Safefree(pv); | |
2304df62 | 1400 | SvPVX(sv) = 0; |
d1bf51dd | 1401 | AvMAX(sv) = -1; |
93965878 | 1402 | AvFILLp(sv) = -1; |
463ee0b2 LW |
1403 | SvIVX(sv) = 0; |
1404 | SvNVX(sv) = 0.0; | |
1405 | SvMAGIC(sv) = magic; | |
1406 | SvSTASH(sv) = stash; | |
1407 | AvALLOC(sv) = 0; | |
79072805 LW |
1408 | AvARYLEN(sv) = 0; |
1409 | AvFLAGS(sv) = 0; | |
1410 | break; | |
1411 | case SVt_PVHV: | |
1412 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1413 | if (pv) |
1414 | Safefree(pv); | |
1415 | SvPVX(sv) = 0; | |
1416 | HvFILL(sv) = 0; | |
1417 | HvMAX(sv) = 0; | |
1418 | HvKEYS(sv) = 0; | |
1419 | SvNVX(sv) = 0.0; | |
79072805 LW |
1420 | SvMAGIC(sv) = magic; |
1421 | SvSTASH(sv) = stash; | |
79072805 LW |
1422 | HvRITER(sv) = 0; |
1423 | HvEITER(sv) = 0; | |
1424 | HvPMROOT(sv) = 0; | |
1425 | HvNAME(sv) = 0; | |
79072805 LW |
1426 | break; |
1427 | case SVt_PVCV: | |
1428 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1429 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 1430 | SvPVX(sv) = pv; |
79072805 LW |
1431 | SvCUR(sv) = cur; |
1432 | SvLEN(sv) = len; | |
463ee0b2 LW |
1433 | SvIVX(sv) = iv; |
1434 | SvNVX(sv) = nv; | |
79072805 LW |
1435 | SvMAGIC(sv) = magic; |
1436 | SvSTASH(sv) = stash; | |
79072805 LW |
1437 | break; |
1438 | case SVt_PVGV: | |
1439 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 1440 | SvPVX(sv) = pv; |
79072805 LW |
1441 | SvCUR(sv) = cur; |
1442 | SvLEN(sv) = len; | |
463ee0b2 LW |
1443 | SvIVX(sv) = iv; |
1444 | SvNVX(sv) = nv; | |
79072805 LW |
1445 | SvMAGIC(sv) = magic; |
1446 | SvSTASH(sv) = stash; | |
93a17b20 | 1447 | GvGP(sv) = 0; |
79072805 LW |
1448 | GvNAME(sv) = 0; |
1449 | GvNAMELEN(sv) = 0; | |
1450 | GvSTASH(sv) = 0; | |
a5f75d66 | 1451 | GvFLAGS(sv) = 0; |
79072805 LW |
1452 | break; |
1453 | case SVt_PVBM: | |
1454 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 1455 | SvPVX(sv) = pv; |
79072805 LW |
1456 | SvCUR(sv) = cur; |
1457 | SvLEN(sv) = len; | |
463ee0b2 LW |
1458 | SvIVX(sv) = iv; |
1459 | SvNVX(sv) = nv; | |
79072805 LW |
1460 | SvMAGIC(sv) = magic; |
1461 | SvSTASH(sv) = stash; | |
1462 | BmRARE(sv) = 0; | |
1463 | BmUSEFUL(sv) = 0; | |
1464 | BmPREVIOUS(sv) = 0; | |
1465 | break; | |
1466 | case SVt_PVFM: | |
1467 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1468 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 1469 | SvPVX(sv) = pv; |
79072805 LW |
1470 | SvCUR(sv) = cur; |
1471 | SvLEN(sv) = len; | |
463ee0b2 LW |
1472 | SvIVX(sv) = iv; |
1473 | SvNVX(sv) = nv; | |
79072805 LW |
1474 | SvMAGIC(sv) = magic; |
1475 | SvSTASH(sv) = stash; | |
79072805 | 1476 | break; |
8990e307 LW |
1477 | case SVt_PVIO: |
1478 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1479 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
1480 | SvPVX(sv) = pv; |
1481 | SvCUR(sv) = cur; | |
1482 | SvLEN(sv) = len; | |
1483 | SvIVX(sv) = iv; | |
1484 | SvNVX(sv) = nv; | |
1485 | SvMAGIC(sv) = magic; | |
1486 | SvSTASH(sv) = stash; | |
85e6fe83 | 1487 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1488 | break; |
1489 | } | |
1490 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
1491 | SvFLAGS(sv) |= mt; | |
79072805 LW |
1492 | return TRUE; |
1493 | } | |
1494 | ||
645c22ef DM |
1495 | /* |
1496 | =for apidoc sv_backoff | |
1497 | ||
1498 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1499 | wrapper instead. | |
1500 | ||
1501 | =cut | |
1502 | */ | |
1503 | ||
79072805 | 1504 | int |
864dbfa3 | 1505 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1506 | { |
1507 | assert(SvOOK(sv)); | |
463ee0b2 LW |
1508 | if (SvIVX(sv)) { |
1509 | char *s = SvPVX(sv); | |
1510 | SvLEN(sv) += SvIVX(sv); | |
1511 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 1512 | SvIV_set(sv, 0); |
463ee0b2 | 1513 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1514 | } |
1515 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1516 | return 0; |
79072805 LW |
1517 | } |
1518 | ||
954c1994 GS |
1519 | /* |
1520 | =for apidoc sv_grow | |
1521 | ||
645c22ef DM |
1522 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1523 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1524 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1525 | |
1526 | =cut | |
1527 | */ | |
1528 | ||
79072805 | 1529 | char * |
864dbfa3 | 1530 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1531 | { |
1532 | register char *s; | |
1533 | ||
55497cff | 1534 | #ifdef HAS_64K_LIMIT |
79072805 | 1535 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1536 | PerlIO_printf(Perl_debug_log, |
1537 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1538 | my_exit(1); |
1539 | } | |
55497cff | 1540 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1541 | if (SvROK(sv)) |
1542 | sv_unref(sv); | |
79072805 LW |
1543 | if (SvTYPE(sv) < SVt_PV) { |
1544 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 1545 | s = SvPVX(sv); |
79072805 LW |
1546 | } |
1547 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1548 | sv_backoff(sv); | |
463ee0b2 | 1549 | s = SvPVX(sv); |
79072805 LW |
1550 | if (newlen > SvLEN(sv)) |
1551 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1552 | #ifdef HAS_64K_LIMIT |
1553 | if (newlen >= 0x10000) | |
1554 | newlen = 0xFFFF; | |
1555 | #endif | |
79072805 LW |
1556 | } |
1557 | else | |
463ee0b2 | 1558 | s = SvPVX(sv); |
79072805 | 1559 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 1560 | if (SvLEN(sv) && s) { |
f5a32c7f | 1561 | #if defined(MYMALLOC) && !defined(LEAKTEST) |
8d6dde3e IZ |
1562 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
1563 | if (newlen <= l) { | |
1564 | SvLEN_set(sv, l); | |
1565 | return s; | |
1566 | } else | |
c70c8a0a | 1567 | #endif |
79072805 | 1568 | Renew(s,newlen,char); |
8d6dde3e | 1569 | } |
79072805 LW |
1570 | else |
1571 | New(703,s,newlen,char); | |
1572 | SvPV_set(sv, s); | |
1573 | SvLEN_set(sv, newlen); | |
1574 | } | |
1575 | return s; | |
1576 | } | |
1577 | ||
954c1994 GS |
1578 | /* |
1579 | =for apidoc sv_setiv | |
1580 | ||
645c22ef DM |
1581 | Copies an integer into the given SV, upgrading first if necessary. |
1582 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1583 | |
1584 | =cut | |
1585 | */ | |
1586 | ||
79072805 | 1587 | void |
864dbfa3 | 1588 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1589 | { |
2213622d | 1590 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
1591 | switch (SvTYPE(sv)) { |
1592 | case SVt_NULL: | |
79072805 | 1593 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1594 | break; |
1595 | case SVt_NV: | |
1596 | sv_upgrade(sv, SVt_PVNV); | |
1597 | break; | |
ed6116ce | 1598 | case SVt_RV: |
463ee0b2 | 1599 | case SVt_PV: |
79072805 | 1600 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1601 | break; |
a0d0e21e LW |
1602 | |
1603 | case SVt_PVGV: | |
a0d0e21e LW |
1604 | case SVt_PVAV: |
1605 | case SVt_PVHV: | |
1606 | case SVt_PVCV: | |
1607 | case SVt_PVFM: | |
1608 | case SVt_PVIO: | |
411caa50 JH |
1609 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
1610 | PL_op_desc[PL_op->op_type]); | |
463ee0b2 | 1611 | } |
a0d0e21e | 1612 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1613 | SvIVX(sv) = i; |
463ee0b2 | 1614 | SvTAINT(sv); |
79072805 LW |
1615 | } |
1616 | ||
954c1994 GS |
1617 | /* |
1618 | =for apidoc sv_setiv_mg | |
1619 | ||
1620 | Like C<sv_setiv>, but also handles 'set' magic. | |
1621 | ||
1622 | =cut | |
1623 | */ | |
1624 | ||
79072805 | 1625 | void |
864dbfa3 | 1626 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1627 | { |
1628 | sv_setiv(sv,i); | |
1629 | SvSETMAGIC(sv); | |
1630 | } | |
1631 | ||
954c1994 GS |
1632 | /* |
1633 | =for apidoc sv_setuv | |
1634 | ||
645c22ef DM |
1635 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1636 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1637 | |
1638 | =cut | |
1639 | */ | |
1640 | ||
ef50df4b | 1641 | void |
864dbfa3 | 1642 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1643 | { |
55ada374 NC |
1644 | /* With these two if statements: |
1645 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1646 | |
55ada374 NC |
1647 | without |
1648 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1649 | |
55ada374 NC |
1650 | If you wish to remove them, please benchmark to see what the effect is |
1651 | */ | |
28e5dec8 JH |
1652 | if (u <= (UV)IV_MAX) { |
1653 | sv_setiv(sv, (IV)u); | |
1654 | return; | |
1655 | } | |
25da4f38 IZ |
1656 | sv_setiv(sv, 0); |
1657 | SvIsUV_on(sv); | |
1658 | SvUVX(sv) = u; | |
55497cff | 1659 | } |
1660 | ||
954c1994 GS |
1661 | /* |
1662 | =for apidoc sv_setuv_mg | |
1663 | ||
1664 | Like C<sv_setuv>, but also handles 'set' magic. | |
1665 | ||
1666 | =cut | |
1667 | */ | |
1668 | ||
55497cff | 1669 | void |
864dbfa3 | 1670 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1671 | { |
55ada374 NC |
1672 | /* With these two if statements: |
1673 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1674 | |
55ada374 NC |
1675 | without |
1676 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1677 | |
55ada374 NC |
1678 | If you wish to remove them, please benchmark to see what the effect is |
1679 | */ | |
28e5dec8 JH |
1680 | if (u <= (UV)IV_MAX) { |
1681 | sv_setiv(sv, (IV)u); | |
1682 | } else { | |
1683 | sv_setiv(sv, 0); | |
1684 | SvIsUV_on(sv); | |
1685 | sv_setuv(sv,u); | |
1686 | } | |
ef50df4b GS |
1687 | SvSETMAGIC(sv); |
1688 | } | |
1689 | ||
954c1994 GS |
1690 | /* |
1691 | =for apidoc sv_setnv | |
1692 | ||
645c22ef DM |
1693 | Copies a double into the given SV, upgrading first if necessary. |
1694 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1695 | |
1696 | =cut | |
1697 | */ | |
1698 | ||
ef50df4b | 1699 | void |
65202027 | 1700 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1701 | { |
2213622d | 1702 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1703 | switch (SvTYPE(sv)) { |
1704 | case SVt_NULL: | |
1705 | case SVt_IV: | |
79072805 | 1706 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1707 | break; |
a0d0e21e LW |
1708 | case SVt_RV: |
1709 | case SVt_PV: | |
1710 | case SVt_PVIV: | |
79072805 | 1711 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1712 | break; |
827b7e14 | 1713 | |
a0d0e21e | 1714 | case SVt_PVGV: |
a0d0e21e LW |
1715 | case SVt_PVAV: |
1716 | case SVt_PVHV: | |
1717 | case SVt_PVCV: | |
1718 | case SVt_PVFM: | |
1719 | case SVt_PVIO: | |
411caa50 JH |
1720 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
1721 | PL_op_name[PL_op->op_type]); | |
79072805 | 1722 | } |
463ee0b2 | 1723 | SvNVX(sv) = num; |
a0d0e21e | 1724 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1725 | SvTAINT(sv); |
79072805 LW |
1726 | } |
1727 | ||
954c1994 GS |
1728 | /* |
1729 | =for apidoc sv_setnv_mg | |
1730 | ||
1731 | Like C<sv_setnv>, but also handles 'set' magic. | |
1732 | ||
1733 | =cut | |
1734 | */ | |
1735 | ||
ef50df4b | 1736 | void |
65202027 | 1737 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1738 | { |
1739 | sv_setnv(sv,num); | |
1740 | SvSETMAGIC(sv); | |
1741 | } | |
1742 | ||
645c22ef DM |
1743 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1744 | * printable version of the offending string | |
1745 | */ | |
1746 | ||
76e3520e | 1747 | STATIC void |
cea2e8a9 | 1748 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e LW |
1749 | { |
1750 | char tmpbuf[64]; | |
1751 | char *d = tmpbuf; | |
dc28f22b GA |
1752 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; |
1753 | /* each *s can expand to 4 chars + "...\0", | |
1754 | i.e. need room for 8 chars */ | |
a0d0e21e | 1755 | |
59bb5845 RB |
1756 | char *s, *end; |
1757 | for (s = SvPVX(sv), end = s + SvCUR(sv); s < end && d < limit; s++) { | |
bbce6d69 | 1758 | int ch = *s & 0xFF; |
1759 | if (ch & 128 && !isPRINT_LC(ch)) { | |
a0d0e21e LW |
1760 | *d++ = 'M'; |
1761 | *d++ = '-'; | |
1762 | ch &= 127; | |
1763 | } | |
bbce6d69 | 1764 | if (ch == '\n') { |
1765 | *d++ = '\\'; | |
1766 | *d++ = 'n'; | |
1767 | } | |
1768 | else if (ch == '\r') { | |
1769 | *d++ = '\\'; | |
1770 | *d++ = 'r'; | |
1771 | } | |
1772 | else if (ch == '\f') { | |
1773 | *d++ = '\\'; | |
1774 | *d++ = 'f'; | |
1775 | } | |
1776 | else if (ch == '\\') { | |
1777 | *d++ = '\\'; | |
1778 | *d++ = '\\'; | |
1779 | } | |
59bb5845 RB |
1780 | else if (ch == '\0') { |
1781 | *d++ = '\\'; | |
1782 | *d++ = '0'; | |
1783 | } | |
bbce6d69 | 1784 | else if (isPRINT_LC(ch)) |
a0d0e21e LW |
1785 | *d++ = ch; |
1786 | else { | |
1787 | *d++ = '^'; | |
bbce6d69 | 1788 | *d++ = toCTRL(ch); |
a0d0e21e LW |
1789 | } |
1790 | } | |
e71c6625 | 1791 | if (s < end) { |
a0d0e21e LW |
1792 | *d++ = '.'; |
1793 | *d++ = '.'; | |
1794 | *d++ = '.'; | |
1795 | } | |
1796 | *d = '\0'; | |
1797 | ||
533c011a | 1798 | if (PL_op) |
42d38218 MS |
1799 | Perl_warner(aTHX_ WARN_NUMERIC, |
1800 | "Argument \"%s\" isn't numeric in %s", tmpbuf, | |
1801 | PL_op_desc[PL_op->op_type]); | |
a0d0e21e | 1802 | else |
42d38218 MS |
1803 | Perl_warner(aTHX_ WARN_NUMERIC, |
1804 | "Argument \"%s\" isn't numeric", tmpbuf); | |
a0d0e21e LW |
1805 | } |
1806 | ||
c2988b20 NC |
1807 | /* |
1808 | =for apidoc looks_like_number | |
1809 | ||
645c22ef DM |
1810 | Test if the content of an SV looks like a number (or is a number). |
1811 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1812 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1813 | |
1814 | =cut | |
1815 | */ | |
1816 | ||
1817 | I32 | |
1818 | Perl_looks_like_number(pTHX_ SV *sv) | |
1819 | { | |
1820 | register char *sbegin; | |
1821 | STRLEN len; | |
1822 | ||
1823 | if (SvPOK(sv)) { | |
1824 | sbegin = SvPVX(sv); | |
1825 | len = SvCUR(sv); | |
1826 | } | |
1827 | else if (SvPOKp(sv)) | |
1828 | sbegin = SvPV(sv, len); | |
1829 | else | |
1830 | return 1; /* Historic. Wrong? */ | |
1831 | return grok_number(sbegin, len, NULL); | |
1832 | } | |
25da4f38 IZ |
1833 | |
1834 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1835 | until proven guilty, assume that things are not that bad... */ | |
1836 | ||
645c22ef DM |
1837 | /* |
1838 | NV_PRESERVES_UV: | |
1839 | ||
1840 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
1841 | an IV (an assumption perl has been based on to date) it becomes necessary |
1842 | to remove the assumption that the NV always carries enough precision to | |
1843 | recreate the IV whenever needed, and that the NV is the canonical form. | |
1844 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 1845 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
1846 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
1847 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
1848 | conversion where precision was lost and IV/UV/NV slots that have a | |
1849 | valid conversion which has lost no precision | |
645c22ef | 1850 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
1851 | would lose precision, the precise conversion (or differently |
1852 | imprecise conversion) is also performed and cached, to prevent | |
1853 | requests for different numeric formats on the same SV causing | |
1854 | lossy conversion chains. (lossless conversion chains are perfectly | |
1855 | acceptable (still)) | |
1856 | ||
1857 | ||
1858 | flags are used: | |
1859 | SvIOKp is true if the IV slot contains a valid value | |
1860 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
1861 | SvNOKp is true if the NV slot contains a valid value | |
1862 | SvNOK is true only if the NV value is accurate | |
1863 | ||
1864 | so | |
645c22ef | 1865 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
1866 | IV(or UV) would lose accuracy over a direct conversion from PV to |
1867 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
1868 | SV as IOK NOKp (ie not NOK). | |
1869 | ||
645c22ef | 1870 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
1871 | NV would lose accuracy over a direct conversion from PV to NV. If it |
1872 | would, cache both conversions, flag similarly. | |
1873 | ||
1874 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
1875 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
1876 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
1877 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 1878 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 1879 | |
645c22ef DM |
1880 | The benefit of this is that operations such as pp_add know that if |
1881 | SvIOK is true for both left and right operands, then integer addition | |
1882 | can be used instead of floating point (for cases where the result won't | |
1883 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
1884 | loss of precision compared with integer addition. |
1885 | ||
1886 | * making IV and NV equal status should make maths accurate on 64 bit | |
1887 | platforms | |
1888 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 1889 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
1890 | looking for SvIOK and checking for overflow will not outweigh the |
1891 | fp to integer speedup) | |
1892 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
1893 | values, as the change from SvIOK to SvIOKp will cause a call into | |
1894 | sv_2iv each time rather than a macro access direct to the IV slot | |
1895 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 1896 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
1897 | |
1898 | #################################################################### | |
645c22ef DM |
1899 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
1900 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
1901 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
1902 | #################################################################### |
1903 | ||
645c22ef | 1904 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
1905 | performance ratio. |
1906 | */ | |
1907 | ||
1908 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
1909 | # define IS_NUMBER_UNDERFLOW_IV 1 |
1910 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
1911 | # define IS_NUMBER_IV_AND_UV 2 | |
1912 | # define IS_NUMBER_OVERFLOW_IV 4 | |
1913 | # define IS_NUMBER_OVERFLOW_UV 5 | |
1914 | ||
1915 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
1916 | |
1917 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
1918 | STATIC int | |
645c22ef | 1919 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 1920 | { |
159fae86 | 1921 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_2iuv_non '%s', IV=0x%"UVxf" NV=%g inttype=%"UVXf"\n", SvPVX(sv), SvIVX(sv), SvNVX(sv), (UV)numtype)); |
28e5dec8 JH |
1922 | if (SvNVX(sv) < (NV)IV_MIN) { |
1923 | (void)SvIOKp_on(sv); | |
1924 | (void)SvNOK_on(sv); | |
1925 | SvIVX(sv) = IV_MIN; | |
1926 | return IS_NUMBER_UNDERFLOW_IV; | |
1927 | } | |
1928 | if (SvNVX(sv) > (NV)UV_MAX) { | |
1929 | (void)SvIOKp_on(sv); | |
1930 | (void)SvNOK_on(sv); | |
1931 | SvIsUV_on(sv); | |
1932 | SvUVX(sv) = UV_MAX; | |
1933 | return IS_NUMBER_OVERFLOW_UV; | |
1934 | } | |
c2988b20 NC |
1935 | (void)SvIOKp_on(sv); |
1936 | (void)SvNOK_on(sv); | |
1937 | /* Can't use strtol etc to convert this string. (See truth table in | |
1938 | sv_2iv */ | |
1939 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
1940 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1941 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
1942 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
1943 | } else { | |
1944 | /* Integer is imprecise. NOK, IOKp */ | |
1945 | } | |
1946 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
1947 | } | |
1948 | SvIsUV_on(sv); | |
1949 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1950 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
1951 | if (SvUVX(sv) == UV_MAX) { | |
1952 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
1953 | possibly be preserved by NV. Hence, it must be overflow. | |
1954 | NOK, IOKp */ | |
1955 | return IS_NUMBER_OVERFLOW_UV; | |
1956 | } | |
1957 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
1958 | } else { | |
1959 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 1960 | } |
c2988b20 | 1961 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 1962 | } |
645c22ef DM |
1963 | #endif /* !NV_PRESERVES_UV*/ |
1964 | ||
1965 | /* | |
1966 | =for apidoc sv_2iv | |
1967 | ||
1968 | Return the integer value of an SV, doing any necessary string conversion, | |
1969 | magic etc. Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
1970 | ||
1971 | =cut | |
1972 | */ | |
28e5dec8 | 1973 | |
a0d0e21e | 1974 | IV |
864dbfa3 | 1975 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
1976 | { |
1977 | if (!sv) | |
1978 | return 0; | |
8990e307 | 1979 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1980 | mg_get(sv); |
1981 | if (SvIOKp(sv)) | |
1982 | return SvIVX(sv); | |
748a9306 | 1983 | if (SvNOKp(sv)) { |
25da4f38 | 1984 | return I_V(SvNVX(sv)); |
748a9306 | 1985 | } |
36477c24 | 1986 | if (SvPOKp(sv) && SvLEN(sv)) |
1987 | return asIV(sv); | |
3fe9a6f1 | 1988 | if (!SvROK(sv)) { |
d008e5eb | 1989 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 1990 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 1991 | report_uninit(); |
c6ee37c5 | 1992 | } |
36477c24 | 1993 | return 0; |
3fe9a6f1 | 1994 | } |
463ee0b2 | 1995 | } |
ed6116ce | 1996 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 1997 | if (SvROK(sv)) { |
a0d0e21e | 1998 | SV* tmpstr; |
1554e226 | 1999 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2000 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2001 | return SvIV(tmpstr); |
56431972 | 2002 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2003 | } |
47deb5e7 NIS |
2004 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2005 | sv_force_normal(sv); | |
2006 | } | |
0336b60e | 2007 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2008 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2009 | report_uninit(); |
ed6116ce LW |
2010 | return 0; |
2011 | } | |
79072805 | 2012 | } |
25da4f38 IZ |
2013 | if (SvIOKp(sv)) { |
2014 | if (SvIsUV(sv)) { | |
2015 | return (IV)(SvUVX(sv)); | |
2016 | } | |
2017 | else { | |
2018 | return SvIVX(sv); | |
2019 | } | |
463ee0b2 | 2020 | } |
748a9306 | 2021 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2022 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2023 | * without also getting a cached IV/UV from it at the same time | |
2024 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2025 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2026 | |
2027 | if (SvTYPE(sv) == SVt_NV) | |
2028 | sv_upgrade(sv, SVt_PVNV); | |
2029 | ||
28e5dec8 JH |
2030 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2031 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2032 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2033 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2034 | cases go to UV */ | |
2035 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
748a9306 | 2036 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2037 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2038 | #ifndef NV_PRESERVES_UV | |
2039 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2040 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2041 | /* Don't flag it as "accurately an integer" if the number | |
2042 | came from a (by definition imprecise) NV operation, and | |
2043 | we're outside the range of NV integer precision */ | |
2044 | #endif | |
2045 | ) { | |
2046 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2047 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
2048 | "0x%"UVxf" iv(%g => %"IVdf") (precise)\n", | |
2049 | PTR2UV(sv), | |
2050 | SvNVX(sv), | |
2051 | SvIVX(sv))); | |
2052 | ||
2053 | } else { | |
2054 | /* IV not precise. No need to convert from PV, as NV | |
2055 | conversion would already have cached IV if it detected | |
2056 | that PV->IV would be better than PV->NV->IV | |
2057 | flags already correct - don't set public IOK. */ | |
2058 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
2059 | "0x%"UVxf" iv(%g => %"IVdf") (imprecise)\n", | |
2060 | PTR2UV(sv), | |
2061 | SvNVX(sv), | |
2062 | SvIVX(sv))); | |
2063 | } | |
2064 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2065 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2066 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2067 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2068 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2069 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2070 | Hopefully for 2s complement IV_MIN is something like | |
2071 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2072 | } |
25da4f38 | 2073 | else { |
ff68c719 | 2074 | SvUVX(sv) = U_V(SvNVX(sv)); |
28e5dec8 JH |
2075 | if ( |
2076 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2077 | #ifndef NV_PRESERVES_UV | |
2078 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2079 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2080 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2081 | /* Don't flag it as "accurately an integer" if the number | |
2082 | came from a (by definition imprecise) NV operation, and | |
2083 | we're outside the range of NV integer precision */ | |
2084 | #endif | |
2085 | ) | |
2086 | SvIOK_on(sv); | |
25da4f38 IZ |
2087 | SvIsUV_on(sv); |
2088 | ret_iv_max: | |
1c846c1f | 2089 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2090 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2091 | PTR2UV(sv), |
57def98f JH |
2092 | SvUVX(sv), |
2093 | SvUVX(sv))); | |
25da4f38 IZ |
2094 | return (IV)SvUVX(sv); |
2095 | } | |
748a9306 LW |
2096 | } |
2097 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2098 | UV value; |
2099 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2100 | /* We want to avoid a possible problem when we cache an IV which |
2101 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2102 | the same as the direct translation of the initial string |
2103 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2104 | be careful to ensure that the value with the .456 is around if the | |
2105 | NV value is requested in the future). | |
1c846c1f | 2106 | |
25da4f38 IZ |
2107 | This means that if we cache such an IV, we need to cache the |
2108 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2109 | cache the NV if we are sure it's not needed. |
25da4f38 | 2110 | */ |
16b7a9a4 | 2111 | |
c2988b20 NC |
2112 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2113 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2114 | == IS_NUMBER_IN_UV) { | |
2115 | /* It's defintately an integer, only upgrade to PVIV */ | |
28e5dec8 JH |
2116 | if (SvTYPE(sv) < SVt_PVIV) |
2117 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2118 | (void)SvIOK_on(sv); |
c2988b20 NC |
2119 | } else if (SvTYPE(sv) < SVt_PVNV) |
2120 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2121 | |
c2988b20 NC |
2122 | /* If NV preserves UV then we only use the UV value if we know that |
2123 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2124 | then the value returned may have more precision than atof() will | |
2125 | return, even though value isn't perfectly accurate. */ | |
2126 | if ((numtype & (IS_NUMBER_IN_UV | |
2127 | #ifdef NV_PRESERVES_UV | |
2128 | | IS_NUMBER_NOT_INT | |
2129 | #endif | |
2130 | )) == IS_NUMBER_IN_UV) { | |
2131 | /* This won't turn off the public IOK flag if it was set above */ | |
2132 | (void)SvIOKp_on(sv); | |
2133 | ||
2134 | if (!(numtype & IS_NUMBER_NEG)) { | |
2135 | /* positive */; | |
2136 | if (value <= (UV)IV_MAX) { | |
2137 | SvIVX(sv) = (IV)value; | |
2138 | } else { | |
2139 | SvUVX(sv) = value; | |
2140 | SvIsUV_on(sv); | |
2141 | } | |
2142 | } else { | |
2143 | /* 2s complement assumption */ | |
2144 | if (value <= (UV)IV_MIN) { | |
2145 | SvIVX(sv) = -(IV)value; | |
2146 | } else { | |
2147 | /* Too negative for an IV. This is a double upgrade, but | |
2148 | I'm assuming it will be be rare. */ | |
2149 | if (SvTYPE(sv) < SVt_PVNV) | |
2150 | sv_upgrade(sv, SVt_PVNV); | |
2151 | SvNOK_on(sv); | |
2152 | SvIOK_off(sv); | |
2153 | SvIOKp_on(sv); | |
2154 | SvNVX(sv) = -(NV)value; | |
2155 | SvIVX(sv) = IV_MIN; | |
2156 | } | |
2157 | } | |
2158 | } | |
2159 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2160 | will be in the previous block to set the IV slot, and the next | |
2161 | block to set the NV slot. So no else here. */ | |
2162 | ||
2163 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2164 | != IS_NUMBER_IN_UV) { | |
2165 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
2166 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2167 | |
c2988b20 NC |
2168 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2169 | not_a_number(sv); | |
28e5dec8 | 2170 | |
65202027 | 2171 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2172 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2173 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2174 | #else |
c2988b20 NC |
2175 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%g)\n", |
2176 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2177 | #endif |
28e5dec8 JH |
2178 | |
2179 | ||
2180 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2181 | (void)SvIOKp_on(sv); |
2182 | (void)SvNOK_on(sv); | |
2183 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2184 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2185 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2186 | SvIOK_on(sv); | |
28e5dec8 | 2187 | } else { |
c2988b20 NC |
2188 | /* Integer is imprecise. NOK, IOKp */ |
2189 | } | |
2190 | /* UV will not work better than IV */ | |
2191 | } else { | |
2192 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2193 | SvIsUV_on(sv); | |
2194 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2195 | SvUVX(sv) = UV_MAX; | |
2196 | SvIsUV_on(sv); | |
2197 | } else { | |
2198 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2199 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ | |
2200 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2201 | SvIOK_on(sv); | |
28e5dec8 JH |
2202 | SvIsUV_on(sv); |
2203 | } else { | |
c2988b20 NC |
2204 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2205 | SvIsUV_on(sv); | |
28e5dec8 | 2206 | } |
28e5dec8 | 2207 | } |
c2988b20 NC |
2208 | goto ret_iv_max; |
2209 | } | |
28e5dec8 | 2210 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2211 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2212 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2213 | /* The IV slot will have been set from value returned by | |
2214 | grok_number above. The NV slot has just been set using | |
2215 | Atof. */ | |
560b0c46 | 2216 | SvNOK_on(sv); |
c2988b20 NC |
2217 | assert (SvIOKp(sv)); |
2218 | } else { | |
2219 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2220 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2221 | /* Small enough to preserve all bits. */ | |
2222 | (void)SvIOKp_on(sv); | |
2223 | SvNOK_on(sv); | |
2224 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2225 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2226 | SvIOK_on(sv); | |
2227 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2228 | this NV is in the preserved range, therefore: */ | |
2229 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2230 | < (UV)IV_MAX)) { | |
2231 | Perl_croak(aTHX_ "sv_2iv assumed (U_V(fabs(SvNVX(sv))) < (UV)IV_MAX) but SvNVX(sv)=%g U_V is 0x%"UVxf", IV_MAX is 0x%"UVxf"\n", SvNVX(sv), U_V(SvNVX(sv)), (UV)IV_MAX); | |
2232 | } | |
2233 | } else { | |
2234 | /* IN_UV NOT_INT | |
2235 | 0 0 already failed to read UV. | |
2236 | 0 1 already failed to read UV. | |
2237 | 1 0 you won't get here in this case. IV/UV | |
2238 | slot set, public IOK, Atof() unneeded. | |
2239 | 1 1 already read UV. | |
2240 | so there's no point in sv_2iuv_non_preserve() attempting | |
2241 | to use atol, strtol, strtoul etc. */ | |
2242 | if (sv_2iuv_non_preserve (sv, numtype) | |
2243 | >= IS_NUMBER_OVERFLOW_IV) | |
2244 | goto ret_iv_max; | |
2245 | } | |
2246 | } | |
28e5dec8 | 2247 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2248 | } |
28e5dec8 | 2249 | } else { |
599cee73 | 2250 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2251 | report_uninit(); |
25da4f38 IZ |
2252 | if (SvTYPE(sv) < SVt_IV) |
2253 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2254 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2255 | return 0; |
79072805 | 2256 | } |
1d7c1841 GS |
2257 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2258 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2259 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2260 | } |
2261 | ||
645c22ef DM |
2262 | /* |
2263 | =for apidoc sv_2uv | |
2264 | ||
2265 | Return the unsigned integer value of an SV, doing any necessary string | |
2266 | conversion, magic etc. Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> | |
2267 | macros. | |
2268 | ||
2269 | =cut | |
2270 | */ | |
2271 | ||
ff68c719 | 2272 | UV |
864dbfa3 | 2273 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 2274 | { |
2275 | if (!sv) | |
2276 | return 0; | |
2277 | if (SvGMAGICAL(sv)) { | |
2278 | mg_get(sv); | |
2279 | if (SvIOKp(sv)) | |
2280 | return SvUVX(sv); | |
2281 | if (SvNOKp(sv)) | |
2282 | return U_V(SvNVX(sv)); | |
36477c24 | 2283 | if (SvPOKp(sv) && SvLEN(sv)) |
2284 | return asUV(sv); | |
3fe9a6f1 | 2285 | if (!SvROK(sv)) { |
d008e5eb | 2286 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2287 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2288 | report_uninit(); |
c6ee37c5 | 2289 | } |
36477c24 | 2290 | return 0; |
3fe9a6f1 | 2291 | } |
ff68c719 | 2292 | } |
2293 | if (SvTHINKFIRST(sv)) { | |
2294 | if (SvROK(sv)) { | |
ff68c719 | 2295 | SV* tmpstr; |
1554e226 | 2296 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2297 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2298 | return SvUV(tmpstr); |
56431972 | 2299 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2300 | } |
8a818333 NIS |
2301 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2302 | sv_force_normal(sv); | |
2303 | } | |
0336b60e | 2304 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2305 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2306 | report_uninit(); |
ff68c719 | 2307 | return 0; |
2308 | } | |
2309 | } | |
25da4f38 IZ |
2310 | if (SvIOKp(sv)) { |
2311 | if (SvIsUV(sv)) { | |
2312 | return SvUVX(sv); | |
2313 | } | |
2314 | else { | |
2315 | return (UV)SvIVX(sv); | |
2316 | } | |
ff68c719 | 2317 | } |
2318 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2319 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2320 | * without also getting a cached IV/UV from it at the same time | |
2321 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2322 | * IV or UV at same time to avoid this. */ | |
2323 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2324 | ||
25da4f38 IZ |
2325 | if (SvTYPE(sv) == SVt_NV) |
2326 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2327 | |
2328 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2329 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
f7bbb42a | 2330 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2331 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2332 | #ifndef NV_PRESERVES_UV | |
2333 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2334 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2335 | /* Don't flag it as "accurately an integer" if the number | |
2336 | came from a (by definition imprecise) NV operation, and | |
2337 | we're outside the range of NV integer precision */ | |
2338 | #endif | |
2339 | ) { | |
2340 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2341 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
2342 | "0x%"UVxf" uv(%g => %"IVdf") (precise)\n", | |
2343 | PTR2UV(sv), | |
2344 | SvNVX(sv), | |
2345 | SvIVX(sv))); | |
2346 | ||
2347 | } else { | |
2348 | /* IV not precise. No need to convert from PV, as NV | |
2349 | conversion would already have cached IV if it detected | |
2350 | that PV->IV would be better than PV->NV->IV | |
2351 | flags already correct - don't set public IOK. */ | |
2352 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
2353 | "0x%"UVxf" uv(%g => %"IVdf") (imprecise)\n", | |
2354 | PTR2UV(sv), | |
2355 | SvNVX(sv), | |
2356 | SvIVX(sv))); | |
2357 | } | |
2358 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2359 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2360 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2361 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2362 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2363 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2364 | Hopefully for 2s complement IV_MIN is something like | |
2365 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2366 | } |
28e5dec8 JH |
2367 | else { |
2368 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2369 | if ( | |
2370 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2371 | #ifndef NV_PRESERVES_UV | |
2372 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2373 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2374 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2375 | /* Don't flag it as "accurately an integer" if the number | |
2376 | came from a (by definition imprecise) NV operation, and | |
2377 | we're outside the range of NV integer precision */ | |
2378 | #endif | |
2379 | ) | |
2380 | SvIOK_on(sv); | |
2381 | SvIsUV_on(sv); | |
1c846c1f | 2382 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2383 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2384 | PTR2UV(sv), |
28e5dec8 JH |
2385 | SvUVX(sv), |
2386 | SvUVX(sv))); | |
25da4f38 | 2387 | } |
ff68c719 | 2388 | } |
2389 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2390 | UV value; |
2391 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2392 | |
2393 | /* We want to avoid a possible problem when we cache a UV which | |
2394 | may be later translated to an NV, and the resulting NV is not | |
2395 | the translation of the initial data. | |
1c846c1f | 2396 | |
25da4f38 IZ |
2397 | This means that if we cache such a UV, we need to cache the |
2398 | NV as well. Moreover, we trade speed for space, and do not | |
2399 | cache the NV if not needed. | |
2400 | */ | |
16b7a9a4 | 2401 | |
c2988b20 NC |
2402 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2403 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2404 | == IS_NUMBER_IN_UV) { | |
2405 | /* It's defintately an integer, only upgrade to PVIV */ | |
28e5dec8 | 2406 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2407 | sv_upgrade(sv, SVt_PVIV); |
2408 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2409 | } else if (SvTYPE(sv) < SVt_PVNV) |
2410 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2411 | |
c2988b20 NC |
2412 | /* If NV preserves UV then we only use the UV value if we know that |
2413 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2414 | then the value returned may have more precision than atof() will | |
2415 | return, even though it isn't accurate. */ | |
2416 | if ((numtype & (IS_NUMBER_IN_UV | |
2417 | #ifdef NV_PRESERVES_UV | |
2418 | | IS_NUMBER_NOT_INT | |
2419 | #endif | |
2420 | )) == IS_NUMBER_IN_UV) { | |
2421 | /* This won't turn off the public IOK flag if it was set above */ | |
2422 | (void)SvIOKp_on(sv); | |
2423 | ||
2424 | if (!(numtype & IS_NUMBER_NEG)) { | |
2425 | /* positive */; | |
2426 | if (value <= (UV)IV_MAX) { | |
2427 | SvIVX(sv) = (IV)value; | |
28e5dec8 JH |
2428 | } else { |
2429 | /* it didn't overflow, and it was positive. */ | |
c2988b20 | 2430 | SvUVX(sv) = value; |
28e5dec8 JH |
2431 | SvIsUV_on(sv); |
2432 | } | |
c2988b20 NC |
2433 | } else { |
2434 | /* 2s complement assumption */ | |
2435 | if (value <= (UV)IV_MIN) { | |
2436 | SvIVX(sv) = -(IV)value; | |
2437 | } else { | |
2438 | /* Too negative for an IV. This is a double upgrade, but | |
2439 | I'm assuming it will be be rare. */ | |
2440 | if (SvTYPE(sv) < SVt_PVNV) | |
2441 | sv_upgrade(sv, SVt_PVNV); | |
2442 | SvNOK_on(sv); | |
2443 | SvIOK_off(sv); | |
2444 | SvIOKp_on(sv); | |
2445 | SvNVX(sv) = -(NV)value; | |
2446 | SvIVX(sv) = IV_MIN; | |
2447 | } | |
2448 | } | |
2449 | } | |
2450 | ||
2451 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2452 | != IS_NUMBER_IN_UV) { | |
2453 | /* It wasn't an integer, or it overflowed the UV. */ | |
2454 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2455 | |
c2988b20 | 2456 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2457 | not_a_number(sv); |
2458 | ||
2459 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2460 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2461 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2462 | #else |
c2988b20 NC |
2463 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%g)\n", |
2464 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 JH |
2465 | #endif |
2466 | ||
2467 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2468 | (void)SvIOKp_on(sv); |
2469 | (void)SvNOK_on(sv); | |
2470 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2471 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2472 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2473 | SvIOK_on(sv); | |
2474 | } else { | |
2475 | /* Integer is imprecise. NOK, IOKp */ | |
2476 | } | |
2477 | /* UV will not work better than IV */ | |
2478 | } else { | |
2479 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2480 | SvIsUV_on(sv); | |
2481 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2482 | SvUVX(sv) = UV_MAX; | |
2483 | SvIsUV_on(sv); | |
2484 | } else { | |
2485 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2486 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs | |
2487 | NV preservse UV so can do correct comparison. */ | |
2488 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2489 | SvIOK_on(sv); | |
2490 | SvIsUV_on(sv); | |
2491 | } else { | |
2492 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2493 | SvIsUV_on(sv); | |
2494 | } | |
2495 | } | |
2496 | } | |
28e5dec8 | 2497 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2498 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2499 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2500 | /* The UV slot will have been set from value returned by | |
2501 | grok_number above. The NV slot has just been set using | |
2502 | Atof. */ | |
560b0c46 | 2503 | SvNOK_on(sv); |
c2988b20 NC |
2504 | assert (SvIOKp(sv)); |
2505 | } else { | |
2506 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2507 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2508 | /* Small enough to preserve all bits. */ | |
2509 | (void)SvIOKp_on(sv); | |
2510 | SvNOK_on(sv); | |
2511 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2512 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2513 | SvIOK_on(sv); | |
2514 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2515 | this NV is in the preserved range, therefore: */ | |
2516 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2517 | < (UV)IV_MAX)) { | |
2518 | Perl_croak(aTHX_ "sv_2uv assumed (U_V(fabs(SvNVX(sv))) < (UV)IV_MAX) but SvNVX(sv)=%g U_V is 0x%"UVxf", IV_MAX is 0x%"UVxf"\n", SvNVX(sv), U_V(SvNVX(sv)), (UV)IV_MAX); | |
2519 | } | |
2520 | } else | |
2521 | sv_2iuv_non_preserve (sv, numtype); | |
2522 | } | |
28e5dec8 | 2523 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2524 | } |
ff68c719 | 2525 | } |
2526 | else { | |
d008e5eb | 2527 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2528 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2529 | report_uninit(); |
c6ee37c5 | 2530 | } |
25da4f38 IZ |
2531 | if (SvTYPE(sv) < SVt_IV) |
2532 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2533 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2534 | return 0; |
2535 | } | |
25da4f38 | 2536 | |
1d7c1841 GS |
2537 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2538 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2539 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2540 | } |
2541 | ||
645c22ef DM |
2542 | /* |
2543 | =for apidoc sv_2nv | |
2544 | ||
2545 | Return the num value of an SV, doing any necessary string or integer | |
2546 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2547 | macros. | |
2548 | ||
2549 | =cut | |
2550 | */ | |
2551 | ||
65202027 | 2552 | NV |
864dbfa3 | 2553 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2554 | { |
2555 | if (!sv) | |
2556 | return 0.0; | |
8990e307 | 2557 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2558 | mg_get(sv); |
2559 | if (SvNOKp(sv)) | |
2560 | return SvNVX(sv); | |
a0d0e21e | 2561 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2562 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
2563 | !grok_number(SvPVX(sv), SvCUR(sv), NULL)) | |
a0d0e21e | 2564 | not_a_number(sv); |
097ee67d | 2565 | return Atof(SvPVX(sv)); |
a0d0e21e | 2566 | } |
25da4f38 | 2567 | if (SvIOKp(sv)) { |
1c846c1f | 2568 | if (SvIsUV(sv)) |
65202027 | 2569 | return (NV)SvUVX(sv); |
25da4f38 | 2570 | else |
65202027 | 2571 | return (NV)SvIVX(sv); |
25da4f38 | 2572 | } |
16d20bd9 | 2573 | if (!SvROK(sv)) { |
d008e5eb | 2574 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2575 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2576 | report_uninit(); |
c6ee37c5 | 2577 | } |
16d20bd9 AD |
2578 | return 0; |
2579 | } | |
463ee0b2 | 2580 | } |
ed6116ce | 2581 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2582 | if (SvROK(sv)) { |
a0d0e21e | 2583 | SV* tmpstr; |
1554e226 | 2584 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2585 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2586 | return SvNV(tmpstr); |
56431972 | 2587 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2588 | } |
8a818333 NIS |
2589 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2590 | sv_force_normal(sv); | |
2591 | } | |
0336b60e | 2592 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2593 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2594 | report_uninit(); |
ed6116ce LW |
2595 | return 0.0; |
2596 | } | |
79072805 LW |
2597 | } |
2598 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2599 | if (SvTYPE(sv) == SVt_IV) |
2600 | sv_upgrade(sv, SVt_PVNV); | |
2601 | else | |
2602 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2603 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2604 | DEBUG_c({ |
f93f4e46 | 2605 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2606 | PerlIO_printf(Perl_debug_log, |
2607 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2608 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2609 | RESTORE_NUMERIC_LOCAL(); |
2610 | }); | |
65202027 | 2611 | #else |
572bbb43 | 2612 | DEBUG_c({ |
f93f4e46 | 2613 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2614 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%g)\n", |
2615 | PTR2UV(sv), SvNVX(sv)); | |
097ee67d JH |
2616 | RESTORE_NUMERIC_LOCAL(); |
2617 | }); | |
572bbb43 | 2618 | #endif |
79072805 LW |
2619 | } |
2620 | else if (SvTYPE(sv) < SVt_PVNV) | |
2621 | sv_upgrade(sv, SVt_PVNV); | |
61604483 HS |
2622 | if (SvNOKp(sv) && !(SvIOK(sv) || SvPOK(sv))) { |
2623 | SvNOK_on(sv); | |
2624 | } | |
906f284f | 2625 | else if (SvIOKp(sv)) { |
65202027 | 2626 | SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv); |
28e5dec8 JH |
2627 | #ifdef NV_PRESERVES_UV |
2628 | SvNOK_on(sv); | |
2629 | #else | |
2630 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2631 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2632 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2633 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2634 | SvNOK_on(sv); | |
2635 | else | |
2636 | SvNOKp_on(sv); | |
2637 | #endif | |
93a17b20 | 2638 | } |
748a9306 | 2639 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2640 | UV value; |
2641 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2642 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) | |
a0d0e21e | 2643 | not_a_number(sv); |
28e5dec8 | 2644 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2645 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2646 | == IS_NUMBER_IN_UV) { | |
2647 | /* It's defintately an integer */ | |
2648 | SvNVX(sv) = (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value; | |
2649 | } else | |
2650 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 JH |
2651 | SvNOK_on(sv); |
2652 | #else | |
c2988b20 | 2653 | SvNVX(sv) = Atof(SvPVX(sv)); |
28e5dec8 JH |
2654 | /* Only set the public NV OK flag if this NV preserves the value in |
2655 | the PV at least as well as an IV/UV would. | |
2656 | Not sure how to do this 100% reliably. */ | |
2657 | /* if that shift count is out of range then Configure's test is | |
2658 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2659 | UV_BITS */ | |
2660 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2661 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2662 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2663 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2664 | /* Can't use strtol etc to convert this string, so don't try. | |
2665 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2666 | SvNOK_on(sv); | |
2667 | } else { | |
2668 | /* value has been set. It may not be precise. */ | |
2669 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2670 | /* 2s complement assumption for (UV)IV_MIN */ | |
2671 | SvNOK_on(sv); /* Integer is too negative. */ | |
2672 | } else { | |
2673 | SvNOKp_on(sv); | |
2674 | SvIOKp_on(sv); | |
6fa402ec | 2675 | |
c2988b20 NC |
2676 | if (numtype & IS_NUMBER_NEG) { |
2677 | SvIVX(sv) = -(IV)value; | |
2678 | } else if (value <= (UV)IV_MAX) { | |
2679 | SvIVX(sv) = (IV)value; | |
2680 | } else { | |
2681 | SvUVX(sv) = value; | |
2682 | SvIsUV_on(sv); | |
2683 | } | |
2684 | ||
2685 | if (numtype & IS_NUMBER_NOT_INT) { | |
2686 | /* I believe that even if the original PV had decimals, | |
2687 | they are lost beyond the limit of the FP precision. | |
2688 | However, neither is canonical, so both only get p | |
2689 | flags. NWC, 2000/11/25 */ | |
2690 | /* Both already have p flags, so do nothing */ | |
2691 | } else { | |
2692 | NV nv = SvNVX(sv); | |
2693 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2694 | if (SvIVX(sv) == I_V(nv)) { | |
2695 | SvNOK_on(sv); | |
2696 | SvIOK_on(sv); | |
2697 | } else { | |
2698 | SvIOK_on(sv); | |
2699 | /* It had no "." so it must be integer. */ | |
2700 | } | |
2701 | } else { | |
2702 | /* between IV_MAX and NV(UV_MAX). | |
2703 | Could be slightly > UV_MAX */ | |
6fa402ec | 2704 | |
c2988b20 NC |
2705 | if (numtype & IS_NUMBER_NOT_INT) { |
2706 | /* UV and NV both imprecise. */ | |
2707 | } else { | |
2708 | UV nv_as_uv = U_V(nv); | |
2709 | ||
2710 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2711 | SvNOK_on(sv); | |
2712 | SvIOK_on(sv); | |
2713 | } else { | |
2714 | SvIOK_on(sv); | |
2715 | } | |
2716 | } | |
2717 | } | |
2718 | } | |
2719 | } | |
2720 | } | |
28e5dec8 | 2721 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2722 | } |
79072805 | 2723 | else { |
599cee73 | 2724 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2725 | report_uninit(); |
25da4f38 IZ |
2726 | if (SvTYPE(sv) < SVt_NV) |
2727 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2728 | /* XXX Ilya implies that this is a bug in callers that assume this |
2729 | and ideally should be fixed. */ | |
25da4f38 | 2730 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2731 | return 0.0; |
79072805 | 2732 | } |
572bbb43 | 2733 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2734 | DEBUG_c({ |
f93f4e46 | 2735 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2736 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2737 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2738 | RESTORE_NUMERIC_LOCAL(); |
2739 | }); | |
65202027 | 2740 | #else |
572bbb43 | 2741 | DEBUG_c({ |
f93f4e46 | 2742 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2743 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%g)\n", |
2744 | PTR2UV(sv), SvNVX(sv)); | |
097ee67d JH |
2745 | RESTORE_NUMERIC_LOCAL(); |
2746 | }); | |
572bbb43 | 2747 | #endif |
463ee0b2 | 2748 | return SvNVX(sv); |
79072805 LW |
2749 | } |
2750 | ||
645c22ef DM |
2751 | /* asIV(): extract an integer from the string value of an SV. |
2752 | * Caller must validate PVX */ | |
2753 | ||
76e3520e | 2754 | STATIC IV |
cea2e8a9 | 2755 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2756 | { |
c2988b20 NC |
2757 | UV value; |
2758 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2759 | ||
2760 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2761 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2762 | /* It's definitely an integer */ |
c2988b20 NC |
2763 | if (numtype & IS_NUMBER_NEG) { |
2764 | if (value < (UV)IV_MIN) | |
2765 | return -(IV)value; | |
2766 | } else { | |
2767 | if (value < (UV)IV_MAX) | |
2768 | return (IV)value; | |
2769 | } | |
2770 | } | |
d008e5eb | 2771 | if (!numtype) { |
d008e5eb GS |
2772 | if (ckWARN(WARN_NUMERIC)) |
2773 | not_a_number(sv); | |
2774 | } | |
c2988b20 | 2775 | return I_V(Atof(SvPVX(sv))); |
36477c24 | 2776 | } |
2777 | ||
645c22ef DM |
2778 | /* asUV(): extract an unsigned integer from the string value of an SV |
2779 | * Caller must validate PVX */ | |
2780 | ||
76e3520e | 2781 | STATIC UV |
cea2e8a9 | 2782 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2783 | { |
c2988b20 NC |
2784 | UV value; |
2785 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
36477c24 | 2786 | |
c2988b20 NC |
2787 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2788 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2789 | /* It's definitely an integer */ |
6fa402ec | 2790 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2791 | return value; |
2792 | } | |
d008e5eb | 2793 | if (!numtype) { |
d008e5eb GS |
2794 | if (ckWARN(WARN_NUMERIC)) |
2795 | not_a_number(sv); | |
2796 | } | |
097ee67d | 2797 | return U_V(Atof(SvPVX(sv))); |
36477c24 | 2798 | } |
2799 | ||
645c22ef DM |
2800 | /* |
2801 | =for apidoc sv_2pv_nolen | |
2802 | ||
2803 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2804 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2805 | =cut | |
2806 | */ | |
2807 | ||
79072805 | 2808 | char * |
864dbfa3 | 2809 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
2810 | { |
2811 | STRLEN n_a; | |
2812 | return sv_2pv(sv, &n_a); | |
2813 | } | |
2814 | ||
645c22ef DM |
2815 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2816 | * UV as a string towards the end of buf, and return pointers to start and | |
2817 | * end of it. | |
2818 | * | |
2819 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2820 | */ | |
2821 | ||
864dbfa3 | 2822 | static char * |
25da4f38 IZ |
2823 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
2824 | { | |
25da4f38 IZ |
2825 | char *ptr = buf + TYPE_CHARS(UV); |
2826 | char *ebuf = ptr; | |
2827 | int sign; | |
25da4f38 IZ |
2828 | |
2829 | if (is_uv) | |
2830 | sign = 0; | |
2831 | else if (iv >= 0) { | |
2832 | uv = iv; | |
2833 | sign = 0; | |
2834 | } else { | |
2835 | uv = -iv; | |
2836 | sign = 1; | |
2837 | } | |
2838 | do { | |
2839 | *--ptr = '0' + (uv % 10); | |
2840 | } while (uv /= 10); | |
2841 | if (sign) | |
2842 | *--ptr = '-'; | |
2843 | *peob = ebuf; | |
2844 | return ptr; | |
2845 | } | |
2846 | ||
645c22ef DM |
2847 | /* For backwards-compatibility only. sv_2pv() is normally #def'ed to |
2848 | * C<sv_2pv_macro()>. See also C<sv_2pv_flags()>. | |
2849 | */ | |
2850 | ||
1fa8b10d | 2851 | char * |
864dbfa3 | 2852 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) |
79072805 | 2853 | { |
36f65ada | 2854 | return sv_2pv_flags(sv, lp, SV_GMAGIC); |
8d6d96c1 HS |
2855 | } |
2856 | ||
645c22ef DM |
2857 | /* |
2858 | =for apidoc sv_2pv_flags | |
2859 | ||
2860 | Returns pointer to the string value of an SV, and sets *lp to its length. | |
2861 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string | |
2862 | if necessary. | |
2863 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
2864 | usually end up here too. | |
2865 | ||
2866 | =cut | |
2867 | */ | |
2868 | ||
8d6d96c1 HS |
2869 | char * |
2870 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
2871 | { | |
79072805 LW |
2872 | register char *s; |
2873 | int olderrno; | |
46fc3d4c | 2874 | SV *tsv; |
25da4f38 IZ |
2875 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
2876 | char *tmpbuf = tbuf; | |
79072805 | 2877 | |
463ee0b2 LW |
2878 | if (!sv) { |
2879 | *lp = 0; | |
2880 | return ""; | |
2881 | } | |
8990e307 | 2882 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
2883 | if (flags & SV_GMAGIC) |
2884 | mg_get(sv); | |
463ee0b2 LW |
2885 | if (SvPOKp(sv)) { |
2886 | *lp = SvCUR(sv); | |
2887 | return SvPVX(sv); | |
2888 | } | |
cf2093f6 | 2889 | if (SvIOKp(sv)) { |
1c846c1f | 2890 | if (SvIsUV(sv)) |
57def98f | 2891 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 2892 | else |
57def98f | 2893 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 2894 | tsv = Nullsv; |
a0d0e21e | 2895 | goto tokensave; |
463ee0b2 LW |
2896 | } |
2897 | if (SvNOKp(sv)) { | |
2d4389e4 | 2898 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 2899 | tsv = Nullsv; |
a0d0e21e | 2900 | goto tokensave; |
463ee0b2 | 2901 | } |
16d20bd9 | 2902 | if (!SvROK(sv)) { |
d008e5eb | 2903 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2904 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2905 | report_uninit(); |
c6ee37c5 | 2906 | } |
16d20bd9 AD |
2907 | *lp = 0; |
2908 | return ""; | |
2909 | } | |
463ee0b2 | 2910 | } |
ed6116ce LW |
2911 | if (SvTHINKFIRST(sv)) { |
2912 | if (SvROK(sv)) { | |
a0d0e21e | 2913 | SV* tmpstr; |
1554e226 | 2914 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
1dc13c17 | 2915 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2916 | return SvPV(tmpstr,*lp); |
ed6116ce LW |
2917 | sv = (SV*)SvRV(sv); |
2918 | if (!sv) | |
2919 | s = "NULLREF"; | |
2920 | else { | |
f9277f47 IZ |
2921 | MAGIC *mg; |
2922 | ||
ed6116ce | 2923 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
2924 | case SVt_PVMG: |
2925 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 2926 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
3149a8e4 | 2927 | == (SVs_OBJECT|SVs_RMG)) |
57668c4d | 2928 | && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp") |
14befaf4 | 2929 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
2cd61cdb | 2930 | regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 2931 | |
2cd61cdb | 2932 | if (!mg->mg_ptr) { |
8782bef2 GB |
2933 | char *fptr = "msix"; |
2934 | char reflags[6]; | |
2935 | char ch; | |
2936 | int left = 0; | |
2937 | int right = 4; | |
2938 | U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12; | |
2939 | ||
155aba94 | 2940 | while((ch = *fptr++)) { |
8782bef2 GB |
2941 | if(reganch & 1) { |
2942 | reflags[left++] = ch; | |
2943 | } | |
2944 | else { | |
2945 | reflags[right--] = ch; | |
2946 | } | |
2947 | reganch >>= 1; | |
2948 | } | |
2949 | if(left != 4) { | |
2950 | reflags[left] = '-'; | |
2951 | left = 5; | |
2952 | } | |
2953 | ||
2954 | mg->mg_len = re->prelen + 4 + left; | |
2955 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); | |
2956 | Copy("(?", mg->mg_ptr, 2, char); | |
2957 | Copy(reflags, mg->mg_ptr+2, left, char); | |
2958 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
2959 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
1bd3ad17 IZ |
2960 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
2961 | mg->mg_ptr[mg->mg_len] = 0; | |
2962 | } | |
3280af22 | 2963 | PL_reginterp_cnt += re->program[0].next_off; |
1bd3ad17 IZ |
2964 | *lp = mg->mg_len; |
2965 | return mg->mg_ptr; | |
f9277f47 IZ |
2966 | } |
2967 | /* Fall through */ | |
ed6116ce LW |
2968 | case SVt_NULL: |
2969 | case SVt_IV: | |
2970 | case SVt_NV: | |
2971 | case SVt_RV: | |
2972 | case SVt_PV: | |
2973 | case SVt_PVIV: | |
2974 | case SVt_PVNV: | |
81689caa HS |
2975 | case SVt_PVBM: if (SvROK(sv)) |
2976 | s = "REF"; | |
2977 | else | |
2978 | s = "SCALAR"; break; | |
ed6116ce LW |
2979 | case SVt_PVLV: s = "LVALUE"; break; |
2980 | case SVt_PVAV: s = "ARRAY"; break; | |
2981 | case SVt_PVHV: s = "HASH"; break; | |
2982 | case SVt_PVCV: s = "CODE"; break; | |
2983 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 2984 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 2985 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
2986 | default: s = "UNKNOWN"; break; |
2987 | } | |
46fc3d4c | 2988 | tsv = NEWSV(0,0); |
ed6116ce | 2989 | if (SvOBJECT(sv)) |
cea2e8a9 | 2990 | Perl_sv_setpvf(aTHX_ tsv, "%s=%s", HvNAME(SvSTASH(sv)), s); |
ed6116ce | 2991 | else |
46fc3d4c | 2992 | sv_setpv(tsv, s); |
57def98f | 2993 | Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv)); |
a0d0e21e | 2994 | goto tokensaveref; |
463ee0b2 | 2995 | } |
ed6116ce LW |
2996 | *lp = strlen(s); |
2997 | return s; | |
79072805 | 2998 | } |
0336b60e | 2999 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3000 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 3001 | report_uninit(); |
ed6116ce LW |
3002 | *lp = 0; |
3003 | return ""; | |
79072805 | 3004 | } |
79072805 | 3005 | } |
28e5dec8 JH |
3006 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3007 | /* I'm assuming that if both IV and NV are equally valid then | |
3008 | converting the IV is going to be more efficient */ | |
3009 | U32 isIOK = SvIOK(sv); | |
3010 | U32 isUIOK = SvIsUV(sv); | |
3011 | char buf[TYPE_CHARS(UV)]; | |
3012 | char *ebuf, *ptr; | |
3013 | ||
3014 | if (SvTYPE(sv) < SVt_PVIV) | |
3015 | sv_upgrade(sv, SVt_PVIV); | |
3016 | if (isUIOK) | |
3017 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3018 | else | |
3019 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
3020 | SvGROW(sv, ebuf - ptr + 1); /* inlined from sv_setpvn */ | |
3021 | Move(ptr,SvPVX(sv),ebuf - ptr,char); | |
3022 | SvCUR_set(sv, ebuf - ptr); | |
3023 | s = SvEND(sv); | |
3024 | *s = '\0'; | |
3025 | if (isIOK) | |
3026 | SvIOK_on(sv); | |
3027 | else | |
3028 | SvIOKp_on(sv); | |
3029 | if (isUIOK) | |
3030 | SvIsUV_on(sv); | |
3031 | } | |
3032 | else if (SvNOKp(sv)) { | |
79072805 LW |
3033 | if (SvTYPE(sv) < SVt_PVNV) |
3034 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3035 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
59155cc0 | 3036 | SvGROW(sv, NV_DIG + 20); |
463ee0b2 | 3037 | s = SvPVX(sv); |
79072805 | 3038 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3039 | #ifdef apollo |
463ee0b2 | 3040 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3041 | (void)strcpy(s,"0"); |
3042 | else | |
3043 | #endif /*apollo*/ | |
bbce6d69 | 3044 | { |
2d4389e4 | 3045 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3046 | } |
79072805 | 3047 | errno = olderrno; |
a0d0e21e LW |
3048 | #ifdef FIXNEGATIVEZERO |
3049 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3050 | strcpy(s,"0"); | |
3051 | #endif | |
79072805 LW |
3052 | while (*s) s++; |
3053 | #ifdef hcx | |
3054 | if (s[-1] == '.') | |
46fc3d4c | 3055 | *--s = '\0'; |
79072805 LW |
3056 | #endif |
3057 | } | |
79072805 | 3058 | else { |
0336b60e IZ |
3059 | if (ckWARN(WARN_UNINITIALIZED) |
3060 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
1d7c1841 | 3061 | report_uninit(); |
a0d0e21e | 3062 | *lp = 0; |
25da4f38 IZ |
3063 | if (SvTYPE(sv) < SVt_PV) |
3064 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3065 | sv_upgrade(sv, SVt_PV); | |
a0d0e21e | 3066 | return ""; |
79072805 | 3067 | } |
463ee0b2 LW |
3068 | *lp = s - SvPVX(sv); |
3069 | SvCUR_set(sv, *lp); | |
79072805 | 3070 | SvPOK_on(sv); |
1d7c1841 GS |
3071 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3072 | PTR2UV(sv),SvPVX(sv))); | |
463ee0b2 | 3073 | return SvPVX(sv); |
a0d0e21e LW |
3074 | |
3075 | tokensave: | |
3076 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3077 | /* Sneaky stuff here */ | |
3078 | ||
3079 | tokensaveref: | |
46fc3d4c | 3080 | if (!tsv) |
96827780 | 3081 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3082 | sv_2mortal(tsv); |
3083 | *lp = SvCUR(tsv); | |
3084 | return SvPVX(tsv); | |
a0d0e21e LW |
3085 | } |
3086 | else { | |
3087 | STRLEN len; | |
46fc3d4c | 3088 | char *t; |
3089 | ||
3090 | if (tsv) { | |
3091 | sv_2mortal(tsv); | |
3092 | t = SvPVX(tsv); | |
3093 | len = SvCUR(tsv); | |
3094 | } | |
3095 | else { | |
96827780 MB |
3096 | t = tmpbuf; |
3097 | len = strlen(tmpbuf); | |
46fc3d4c | 3098 | } |
a0d0e21e | 3099 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3100 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3101 | t = "0"; | |
3102 | len = 1; | |
3103 | } | |
a0d0e21e LW |
3104 | #endif |
3105 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 3106 | *lp = len; |
a0d0e21e LW |
3107 | s = SvGROW(sv, len + 1); |
3108 | SvCUR_set(sv, len); | |
46fc3d4c | 3109 | (void)strcpy(s, t); |
6bf554b4 | 3110 | SvPOKp_on(sv); |
a0d0e21e LW |
3111 | return s; |
3112 | } | |
463ee0b2 LW |
3113 | } |
3114 | ||
645c22ef DM |
3115 | /* |
3116 | =for apidoc sv_2pvbyte_nolen | |
3117 | ||
3118 | Return a pointer to the byte-encoded representation of the SV. | |
3119 | May cause the SV to be downgraded from UTF8 as a side-effect. | |
3120 | ||
3121 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3122 | ||
3123 | =cut | |
3124 | */ | |
3125 | ||
7340a771 GS |
3126 | char * |
3127 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3128 | { | |
560a288e GS |
3129 | STRLEN n_a; |
3130 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
3131 | } |
3132 | ||
645c22ef DM |
3133 | /* |
3134 | =for apidoc sv_2pvbyte | |
3135 | ||
3136 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
3137 | to its length. May cause the SV to be downgraded from UTF8 as a | |
3138 | side-effect. | |
3139 | ||
3140 | Usually accessed via the C<SvPVbyte> macro. | |
3141 | ||
3142 | =cut | |
3143 | */ | |
3144 | ||
7340a771 GS |
3145 | char * |
3146 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3147 | { | |
0875d2fe NIS |
3148 | sv_utf8_downgrade(sv,0); |
3149 | return SvPV(sv,*lp); | |
7340a771 GS |
3150 | } |
3151 | ||
645c22ef DM |
3152 | /* |
3153 | =for apidoc sv_2pvutf8_nolen | |
3154 | ||
3155 | Return a pointer to the UTF8-encoded representation of the SV. | |
3156 | May cause the SV to be upgraded to UTF8 as a side-effect. | |
3157 | ||
3158 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3159 | ||
3160 | =cut | |
3161 | */ | |
3162 | ||
7340a771 GS |
3163 | char * |
3164 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3165 | { | |
560a288e GS |
3166 | STRLEN n_a; |
3167 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
3168 | } |
3169 | ||
645c22ef DM |
3170 | /* |
3171 | =for apidoc sv_2pvutf8 | |
3172 | ||
3173 | Return a pointer to the UTF8-encoded representation of the SV, and set *lp | |
3174 | to its length. May cause the SV to be upgraded to UTF8 as a side-effect. | |
3175 | ||
3176 | Usually accessed via the C<SvPVutf8> macro. | |
3177 | ||
3178 | =cut | |
3179 | */ | |
3180 | ||
7340a771 GS |
3181 | char * |
3182 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3183 | { | |
560a288e | 3184 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3185 | return SvPV(sv,*lp); |
7340a771 | 3186 | } |
1c846c1f | 3187 | |
645c22ef DM |
3188 | /* |
3189 | =for apidoc sv_2bool | |
3190 | ||
3191 | This function is only called on magical items, and is only used by | |
3192 | sv_true() or its macro equivalent. | |
3193 | ||
3194 | =cut | |
3195 | */ | |
3196 | ||
463ee0b2 | 3197 | bool |
864dbfa3 | 3198 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3199 | { |
8990e307 | 3200 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3201 | mg_get(sv); |
3202 | ||
a0d0e21e LW |
3203 | if (!SvOK(sv)) |
3204 | return 0; | |
3205 | if (SvROK(sv)) { | |
a0d0e21e | 3206 | SV* tmpsv; |
1554e226 | 3207 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
1dc13c17 | 3208 | (SvTYPE(tmpsv) != SVt_RV || (SvRV(tmpsv) != SvRV(sv)))) |
9e7bc3e8 | 3209 | return SvTRUE(tmpsv); |
a0d0e21e LW |
3210 | return SvRV(sv) != 0; |
3211 | } | |
463ee0b2 | 3212 | if (SvPOKp(sv)) { |
11343788 MB |
3213 | register XPV* Xpvtmp; |
3214 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
3215 | (*Xpvtmp->xpv_pv > '0' || | |
3216 | Xpvtmp->xpv_cur > 1 || | |
3217 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3218 | return 1; |
3219 | else | |
3220 | return 0; | |
3221 | } | |
3222 | else { | |
3223 | if (SvIOKp(sv)) | |
3224 | return SvIVX(sv) != 0; | |
3225 | else { | |
3226 | if (SvNOKp(sv)) | |
3227 | return SvNVX(sv) != 0.0; | |
3228 | else | |
3229 | return FALSE; | |
3230 | } | |
3231 | } | |
79072805 LW |
3232 | } |
3233 | ||
c461cf8f JH |
3234 | /* |
3235 | =for apidoc sv_utf8_upgrade | |
3236 | ||
3237 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3238 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3239 | Always sets the SvUTF8 flag to avoid future validity checks even |
3240 | if all the bytes have hibit clear. | |
c461cf8f JH |
3241 | |
3242 | =cut | |
3243 | */ | |
3244 | ||
4411f3b6 | 3245 | STRLEN |
560a288e GS |
3246 | Perl_sv_utf8_upgrade(pTHX_ register SV *sv) |
3247 | { | |
36f65ada | 3248 | return sv_utf8_upgrade_flags(sv, SV_GMAGIC); |
8d6d96c1 HS |
3249 | } |
3250 | ||
3251 | /* | |
3252 | =for apidoc sv_utf8_upgrade_flags | |
3253 | ||
3254 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3255 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3256 | Always sets the SvUTF8 flag to avoid future validity checks even |
3257 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3258 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3259 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3260 | ||
3261 | =cut | |
3262 | */ | |
3263 | ||
3264 | STRLEN | |
3265 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3266 | { | |
db42d148 | 3267 | U8 *s, *t, *e; |
511c2ff0 | 3268 | int hibit = 0; |
560a288e | 3269 | |
4411f3b6 NIS |
3270 | if (!sv) |
3271 | return 0; | |
3272 | ||
e0e62c2a NIS |
3273 | if (!SvPOK(sv)) { |
3274 | STRLEN len = 0; | |
8d6d96c1 | 3275 | (void) sv_2pv_flags(sv,&len, flags); |
e0e62c2a NIS |
3276 | if (!SvPOK(sv)) |
3277 | return len; | |
3278 | } | |
4411f3b6 NIS |
3279 | |
3280 | if (SvUTF8(sv)) | |
3281 | return SvCUR(sv); | |
560a288e | 3282 | |
db42d148 NIS |
3283 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
3284 | sv_force_normal(sv); | |
3285 | } | |
3286 | ||
40826f67 JH |
3287 | /* This function could be much more efficient if we had a FLAG in SVs |
3288 | * to signal if there are any hibit chars in the PV. | |
511c2ff0 | 3289 | * Given that there isn't make loop fast as possible |
560a288e | 3290 | */ |
db42d148 NIS |
3291 | s = (U8 *) SvPVX(sv); |
3292 | e = (U8 *) SvEND(sv); | |
511c2ff0 NIS |
3293 | t = s; |
3294 | while (t < e) { | |
c4d5f83a NIS |
3295 | U8 ch = *t++; |
3296 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) | |
8a818333 | 3297 | break; |
8a818333 | 3298 | } |
40826f67 | 3299 | if (hibit) { |
8a818333 | 3300 | STRLEN len; |
652088fc | 3301 | |
8a818333 | 3302 | len = SvCUR(sv) + 1; /* Plus the \0 */ |
00df9076 | 3303 | SvPVX(sv) = (char*)bytes_to_utf8((U8*)s, &len); |
841d7a39 | 3304 | SvCUR(sv) = len - 1; |
511c2ff0 NIS |
3305 | if (SvLEN(sv) != 0) |
3306 | Safefree(s); /* No longer using what was there before. */ | |
841d7a39 | 3307 | SvLEN(sv) = len; /* No longer know the real size. */ |
560a288e | 3308 | } |
4411f3b6 NIS |
3309 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ |
3310 | SvUTF8_on(sv); | |
3311 | return SvCUR(sv); | |
560a288e GS |
3312 | } |
3313 | ||
c461cf8f JH |
3314 | /* |
3315 | =for apidoc sv_utf8_downgrade | |
3316 | ||
3317 | Attempt to convert the PV of an SV from UTF8-encoded to byte encoding. | |
3318 | This may not be possible if the PV contains non-byte encoding characters; | |
3319 | if this is the case, either returns false or, if C<fail_ok> is not | |
3320 | true, croaks. | |
3321 | ||
3322 | =cut | |
3323 | */ | |
3324 | ||
560a288e GS |
3325 | bool |
3326 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3327 | { | |
3328 | if (SvPOK(sv) && SvUTF8(sv)) { | |
fa301091 | 3329 | if (SvCUR(sv)) { |
03cfe0ae | 3330 | U8 *s; |
652088fc | 3331 | STRLEN len; |
fa301091 | 3332 | |
652088fc JH |
3333 | if (SvREADONLY(sv) && SvFAKE(sv)) |
3334 | sv_force_normal(sv); | |
03cfe0ae NIS |
3335 | s = (U8 *) SvPV(sv, len); |
3336 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3337 | if (fail_ok) |
3338 | return FALSE; | |
03cfe0ae | 3339 | #ifdef USE_BYTES_DOWNGRADES |
0064a8a9 | 3340 | else if (IN_BYTES) { |
03cfe0ae NIS |
3341 | U8 *d = s; |
3342 | U8 *e = (U8 *) SvEND(sv); | |
3343 | int first = 1; | |
3344 | while (s < e) { | |
3345 | UV ch = utf8n_to_uvchr(s,(e-s),&len,0); | |
3346 | if (first && ch > 255) { | |
3347 | if (PL_op) | |
3348 | Perl_warner(aTHX_ WARN_UTF8, "Wide character in byte %s", | |
3349 | PL_op_desc[PL_op->op_type]); | |
3350 | else | |
3351 | Perl_warner(aTHX_ WARN_UTF8, "Wide character in byte"); | |
3352 | first = 0; | |
3353 | } | |
3354 | *d++ = ch; | |
3355 | s += len; | |
3356 | } | |
3357 | *d = '\0'; | |
3358 | len = (d - (U8 *) SvPVX(sv)); | |
3359 | } | |
3360 | #endif | |
fa301091 JH |
3361 | else { |
3362 | if (PL_op) | |
3363 | Perl_croak(aTHX_ "Wide character in %s", | |
3364 | PL_op_desc[PL_op->op_type]); | |
3365 | else | |
3366 | Perl_croak(aTHX_ "Wide character"); | |
3367 | } | |
4b3603a4 | 3368 | } |
fa301091 | 3369 | SvCUR(sv) = len; |
67e989fb | 3370 | } |
560a288e | 3371 | } |
ffebcc3e | 3372 | SvUTF8_off(sv); |
560a288e GS |
3373 | return TRUE; |
3374 | } | |
3375 | ||
c461cf8f JH |
3376 | /* |
3377 | =for apidoc sv_utf8_encode | |
3378 | ||
3379 | Convert the PV of an SV to UTF8-encoded, but then turn off the C<SvUTF8> | |
4411f3b6 NIS |
3380 | flag so that it looks like octets again. Used as a building block |
3381 | for encode_utf8 in Encode.xs | |
c461cf8f JH |
3382 | |
3383 | =cut | |
3384 | */ | |
3385 | ||
560a288e GS |
3386 | void |
3387 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3388 | { | |
4411f3b6 | 3389 | (void) sv_utf8_upgrade(sv); |
560a288e GS |
3390 | SvUTF8_off(sv); |
3391 | } | |
3392 | ||
4411f3b6 NIS |
3393 | /* |
3394 | =for apidoc sv_utf8_decode | |
3395 | ||
3396 | Convert the octets in the PV from UTF-8 to chars. Scan for validity and then | |
645c22ef | 3397 | turn off SvUTF8 if needed so that we see characters. Used as a building block |
4411f3b6 NIS |
3398 | for decode_utf8 in Encode.xs |
3399 | ||
3400 | =cut | |
3401 | */ | |
3402 | ||
560a288e GS |
3403 | bool |
3404 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3405 | { | |
3406 | if (SvPOK(sv)) { | |
63cd0674 NIS |
3407 | U8 *c; |
3408 | U8 *e; | |
9cbac4c7 | 3409 | |
645c22ef DM |
3410 | /* The octets may have got themselves encoded - get them back as |
3411 | * bytes | |
3412 | */ | |
3413 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3414 | return FALSE; |
3415 | ||
3416 | /* it is actually just a matter of turning the utf8 flag on, but | |
3417 | * we want to make sure everything inside is valid utf8 first. | |
3418 | */ | |
63cd0674 NIS |
3419 | c = (U8 *) SvPVX(sv); |
3420 | if (!is_utf8_string(c, SvCUR(sv)+1)) | |
67e989fb | 3421 | return FALSE; |
63cd0674 | 3422 | e = (U8 *) SvEND(sv); |
511c2ff0 | 3423 | while (c < e) { |
c4d5f83a NIS |
3424 | U8 ch = *c++; |
3425 | if (!UTF8_IS_INVARIANT(ch)) { | |
67e989fb JH |
3426 | SvUTF8_on(sv); |
3427 | break; | |
3428 | } | |
560a288e | 3429 | } |
560a288e GS |
3430 | } |
3431 | return TRUE; | |
3432 | } | |
3433 | ||
954c1994 GS |
3434 | /* |
3435 | =for apidoc sv_setsv | |
3436 | ||
645c22ef DM |
3437 | Copies the contents of the source SV C<ssv> into the destination SV |
3438 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3439 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3440 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3441 | content of the destination. | |
3442 | ||
3443 | You probably want to use one of the assortment of wrappers, such as | |
3444 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3445 | C<SvSetMagicSV_nosteal>. | |
3446 | ||
954c1994 GS |
3447 | |
3448 | =cut | |
3449 | */ | |
3450 | ||
8d6d96c1 HS |
3451 | /* sv_setsv() is aliased to Perl_sv_setsv_macro; this function provided |
3452 | for binary compatibility only | |
3453 | */ | |
79072805 | 3454 | void |
864dbfa3 | 3455 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) |
79072805 | 3456 | { |
8d6d96c1 HS |
3457 | sv_setsv_flags(dstr, sstr, SV_GMAGIC); |
3458 | } | |
3459 | ||
3460 | /* | |
3461 | =for apidoc sv_setsv_flags | |
3462 | ||
645c22ef DM |
3463 | Copies the contents of the source SV C<ssv> into the destination SV |
3464 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3465 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3466 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3467 | content of the destination. | |
3468 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
3469 | C<ssv> if appropriate, else not. C<sv_setsv> and C<sv_setsv_nomg> are | |
3470 | implemented in terms of this function. | |
3471 | ||
3472 | You probably want to use one of the assortment of wrappers, such as | |
3473 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3474 | C<SvSetMagicSV_nosteal>. | |
3475 | ||
3476 | This is the primary function for copying scalars, and most other | |
3477 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3478 | |
3479 | =cut | |
3480 | */ | |
3481 | ||
3482 | void | |
3483 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3484 | { | |
8990e307 LW |
3485 | register U32 sflags; |
3486 | register int dtype; | |
3487 | register int stype; | |
463ee0b2 | 3488 | |
79072805 LW |
3489 | if (sstr == dstr) |
3490 | return; | |
2213622d | 3491 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 3492 | if (!sstr) |
3280af22 | 3493 | sstr = &PL_sv_undef; |
8990e307 LW |
3494 | stype = SvTYPE(sstr); |
3495 | dtype = SvTYPE(dstr); | |
79072805 | 3496 | |
a0d0e21e | 3497 | SvAMAGIC_off(dstr); |
9e7bc3e8 | 3498 | |
463ee0b2 | 3499 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3500 | |
8990e307 | 3501 | switch (stype) { |
79072805 | 3502 | case SVt_NULL: |
aece5585 | 3503 | undef_sstr: |
20408e3c GS |
3504 | if (dtype != SVt_PVGV) { |
3505 | (void)SvOK_off(dstr); | |
3506 | return; | |
3507 | } | |
3508 | break; | |
463ee0b2 | 3509 | case SVt_IV: |
aece5585 GA |
3510 | if (SvIOK(sstr)) { |
3511 | switch (dtype) { | |
3512 | case SVt_NULL: | |
8990e307 | 3513 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3514 | break; |
3515 | case SVt_NV: | |
8990e307 | 3516 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3517 | break; |
3518 | case SVt_RV: | |
3519 | case SVt_PV: | |
a0d0e21e | 3520 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3521 | break; |
3522 | } | |
3523 | (void)SvIOK_only(dstr); | |
3524 | SvIVX(dstr) = SvIVX(sstr); | |
25da4f38 IZ |
3525 | if (SvIsUV(sstr)) |
3526 | SvIsUV_on(dstr); | |
27c9684d AP |
3527 | if (SvTAINTED(sstr)) |
3528 | SvTAINT(dstr); | |
aece5585 | 3529 | return; |
8990e307 | 3530 | } |
aece5585 GA |
3531 | goto undef_sstr; |
3532 | ||
463ee0b2 | 3533 | case SVt_NV: |
aece5585 GA |
3534 | if (SvNOK(sstr)) { |
3535 | switch (dtype) { | |
3536 | case SVt_NULL: | |
3537 | case SVt_IV: | |
8990e307 | 3538 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3539 | break; |
3540 | case SVt_RV: | |
3541 | case SVt_PV: | |
3542 | case SVt_PVIV: | |
a0d0e21e | 3543 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3544 | break; |
3545 | } | |
3546 | SvNVX(dstr) = SvNVX(sstr); | |
3547 | (void)SvNOK_only(dstr); | |
27c9684d AP |
3548 | if (SvTAINTED(sstr)) |
3549 | SvTAINT(dstr); | |
aece5585 | 3550 | return; |
8990e307 | 3551 | } |
aece5585 GA |
3552 | goto undef_sstr; |
3553 | ||
ed6116ce | 3554 | case SVt_RV: |
8990e307 | 3555 | if (dtype < SVt_RV) |
ed6116ce | 3556 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3557 | else if (dtype == SVt_PVGV && |
3558 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { | |
3559 | sstr = SvRV(sstr); | |
a5f75d66 | 3560 | if (sstr == dstr) { |
1d7c1841 GS |
3561 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3562 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3563 | { | |
a5f75d66 | 3564 | GvIMPORTED_on(dstr); |
1d7c1841 | 3565 | } |
a5f75d66 AD |
3566 | GvMULTI_on(dstr); |
3567 | return; | |
3568 | } | |
c07a80fd | 3569 | goto glob_assign; |
3570 | } | |
ed6116ce | 3571 | break; |
463ee0b2 | 3572 | case SVt_PV: |
fc36a67e | 3573 | case SVt_PVFM: |
8990e307 | 3574 | if (dtype < SVt_PV) |
463ee0b2 | 3575 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3576 | break; |
3577 | case SVt_PVIV: | |
8990e307 | 3578 | if (dtype < SVt_PVIV) |
463ee0b2 | 3579 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3580 | break; |
3581 | case SVt_PVNV: | |
8990e307 | 3582 | if (dtype < SVt_PVNV) |
463ee0b2 | 3583 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3584 | break; |
4633a7c4 LW |
3585 | case SVt_PVAV: |
3586 | case SVt_PVHV: | |
3587 | case SVt_PVCV: | |
4633a7c4 | 3588 | case SVt_PVIO: |
533c011a | 3589 | if (PL_op) |
cea2e8a9 | 3590 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
22c35a8c | 3591 | PL_op_name[PL_op->op_type]); |
4633a7c4 | 3592 | else |
cea2e8a9 | 3593 | Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); |
4633a7c4 LW |
3594 | break; |
3595 | ||
79072805 | 3596 | case SVt_PVGV: |
8990e307 | 3597 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3598 | glob_assign: |
a5f75d66 | 3599 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
3600 | char *name = GvNAME(sstr); |
3601 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 3602 | sv_upgrade(dstr, SVt_PVGV); |
14befaf4 | 3603 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 3604 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
3605 | GvNAME(dstr) = savepvn(name, len); |
3606 | GvNAMELEN(dstr) = len; | |
3607 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3608 | } | |
7bac28a0 | 3609 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3610 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3611 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3612 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3613 | GvNAME(dstr)); |
5bd07a3d DM |
3614 | |
3615 | #ifdef GV_SHARED_CHECK | |
3616 | if (GvSHARED((GV*)dstr)) { | |
3617 | Perl_croak(aTHX_ PL_no_modify); | |
3618 | } | |
3619 | #endif | |
3620 | ||
a0d0e21e | 3621 | (void)SvOK_off(dstr); |
a5f75d66 | 3622 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3623 | gp_free((GV*)dstr); |
79072805 | 3624 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3625 | if (SvTAINTED(sstr)) |
3626 | SvTAINT(dstr); | |
1d7c1841 GS |
3627 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3628 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3629 | { | |
a5f75d66 | 3630 | GvIMPORTED_on(dstr); |
1d7c1841 | 3631 | } |
a5f75d66 | 3632 | GvMULTI_on(dstr); |
79072805 LW |
3633 | return; |
3634 | } | |
3635 | /* FALL THROUGH */ | |
3636 | ||
3637 | default: | |
8d6d96c1 | 3638 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab CS |
3639 | mg_get(sstr); |
3640 | if (SvTYPE(sstr) != stype) { | |
3641 | stype = SvTYPE(sstr); | |
3642 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3643 | goto glob_assign; | |
3644 | } | |
3645 | } | |
ded42b9f | 3646 | if (stype == SVt_PVLV) |
6fc92669 | 3647 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3648 | else |
6fc92669 | 3649 | (void)SvUPGRADE(dstr, stype); |
79072805 LW |
3650 | } |
3651 | ||
8990e307 LW |
3652 | sflags = SvFLAGS(sstr); |
3653 | ||
3654 | if (sflags & SVf_ROK) { | |
3655 | if (dtype >= SVt_PV) { | |
3656 | if (dtype == SVt_PVGV) { | |
3657 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3658 | SV *dref = 0; | |
a5f75d66 | 3659 | int intro = GvINTRO(dstr); |
a0d0e21e | 3660 | |
5bd07a3d DM |
3661 | #ifdef GV_SHARED_CHECK |
3662 | if (GvSHARED((GV*)dstr)) { | |
3663 | Perl_croak(aTHX_ PL_no_modify); | |
3664 | } | |
3665 | #endif | |
3666 | ||
a0d0e21e | 3667 | if (intro) { |
a5f75d66 | 3668 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3669 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3670 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3671 | } |
a5f75d66 | 3672 | GvMULTI_on(dstr); |
8990e307 LW |
3673 | switch (SvTYPE(sref)) { |
3674 | case SVt_PVAV: | |
a0d0e21e LW |
3675 | if (intro) |
3676 | SAVESPTR(GvAV(dstr)); | |
3677 | else | |
3678 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3679 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3680 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3681 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3682 | { | |
a5f75d66 | 3683 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3684 | } |
8990e307 LW |
3685 | break; |
3686 | case SVt_PVHV: | |
a0d0e21e LW |
3687 | if (intro) |
3688 | SAVESPTR(GvHV(dstr)); | |
3689 | else | |
3690 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3691 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3692 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3693 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3694 | { | |
a5f75d66 | 3695 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3696 | } |
8990e307 LW |
3697 | break; |
3698 | case SVt_PVCV: | |
8ebc5c01 | 3699 | if (intro) { |
3700 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3701 | SvREFCNT_dec(GvCV(dstr)); | |
3702 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3703 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3704 | PL_sub_generation++; |
8ebc5c01 | 3705 | } |
a0d0e21e | 3706 | SAVESPTR(GvCV(dstr)); |
8ebc5c01 | 3707 | } |
68dc0745 | 3708 | else |
3709 | dref = (SV*)GvCV(dstr); | |
3710 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3711 | CV* cv = GvCV(dstr); |
4633a7c4 | 3712 | if (cv) { |
68dc0745 | 3713 | if (!GvCVGEN((GV*)dstr) && |
3714 | (CvROOT(cv) || CvXSUB(cv))) | |
3715 | { | |
7bac28a0 | 3716 | /* ahem, death to those who redefine |
3717 | * active sort subs */ | |
3280af22 NIS |
3718 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
3719 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 3720 | Perl_croak(aTHX_ |
7bac28a0 | 3721 | "Can't redefine active sort subroutine %s", |
3722 | GvENAME((GV*)dstr)); | |
beab0874 JT |
3723 | /* Redefining a sub - warning is mandatory if |
3724 | it was a const and its value changed. */ | |
3725 | if (ckWARN(WARN_REDEFINE) | |
3726 | || (CvCONST(cv) | |
3727 | && (!CvCONST((CV*)sref) | |
3728 | || sv_cmp(cv_const_sv(cv), | |
3729 | cv_const_sv((CV*)sref))))) | |
3730 | { | |
3731 | Perl_warner(aTHX_ WARN_REDEFINE, | |
3732 | CvCONST(cv) | |
3733 | ? "Constant subroutine %s redefined" | |
47deb5e7 | 3734 | : "Subroutine %s redefined", |
beab0874 JT |
3735 | GvENAME((GV*)dstr)); |
3736 | } | |
9607fc9c | 3737 | } |
3fe9a6f1 | 3738 | cv_ckproto(cv, (GV*)dstr, |
3739 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 3740 | } |
a5f75d66 | 3741 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 3742 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 3743 | GvASSUMECV_on(dstr); |
3280af22 | 3744 | PL_sub_generation++; |
a5f75d66 | 3745 | } |
39bac7f7 | 3746 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
3747 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3748 | { | |
a5f75d66 | 3749 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 3750 | } |
8990e307 | 3751 | break; |
91bba347 LW |
3752 | case SVt_PVIO: |
3753 | if (intro) | |
3754 | SAVESPTR(GvIOp(dstr)); | |
3755 | else | |
3756 | dref = (SV*)GvIOp(dstr); | |
3757 | GvIOp(dstr) = (IO*)sref; | |
3758 | break; | |
f4d13ee9 JH |
3759 | case SVt_PVFM: |
3760 | if (intro) | |
3761 | SAVESPTR(GvFORM(dstr)); | |
3762 | else | |
3763 | dref = (SV*)GvFORM(dstr); | |
3764 | GvFORM(dstr) = (CV*)sref; | |
3765 | break; | |
8990e307 | 3766 | default: |
a0d0e21e LW |
3767 | if (intro) |
3768 | SAVESPTR(GvSV(dstr)); | |
3769 | else | |
3770 | dref = (SV*)GvSV(dstr); | |
8990e307 | 3771 | GvSV(dstr) = sref; |
39bac7f7 | 3772 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
3773 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3774 | { | |
a5f75d66 | 3775 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 3776 | } |
8990e307 LW |
3777 | break; |
3778 | } | |
3779 | if (dref) | |
3780 | SvREFCNT_dec(dref); | |
a0d0e21e LW |
3781 | if (intro) |
3782 | SAVEFREESV(sref); | |
27c9684d AP |
3783 | if (SvTAINTED(sstr)) |
3784 | SvTAINT(dstr); | |
8990e307 LW |
3785 | return; |
3786 | } | |
a0d0e21e | 3787 | if (SvPVX(dstr)) { |
760ac839 | 3788 | (void)SvOOK_off(dstr); /* backoff */ |
50483b2c JD |
3789 | if (SvLEN(dstr)) |
3790 | Safefree(SvPVX(dstr)); | |
a0d0e21e LW |
3791 | SvLEN(dstr)=SvCUR(dstr)=0; |
3792 | } | |
8990e307 | 3793 | } |
a0d0e21e | 3794 | (void)SvOK_off(dstr); |
8990e307 | 3795 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 3796 | SvROK_on(dstr); |
8990e307 | 3797 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3798 | SvNOKp_on(dstr); |
3799 | /* Only set the public OK flag if the source has public OK. */ | |
3800 | if (sflags & SVf_NOK) | |
3801 | SvFLAGS(dstr) |= SVf_NOK; | |
ed6116ce LW |
3802 | SvNVX(dstr) = SvNVX(sstr); |
3803 | } | |
8990e307 | 3804 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3805 | (void)SvIOKp_on(dstr); |
3806 | if (sflags & SVf_IOK) | |
3807 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3808 | if (sflags & SVf_IVisUV) |
25da4f38 | 3809 | SvIsUV_on(dstr); |
3332b3c1 | 3810 | SvIVX(dstr) = SvIVX(sstr); |
ed6116ce | 3811 | } |
a0d0e21e LW |
3812 | if (SvAMAGIC(sstr)) { |
3813 | SvAMAGIC_on(dstr); | |
3814 | } | |
ed6116ce | 3815 | } |
8990e307 | 3816 | else if (sflags & SVp_POK) { |
79072805 LW |
3817 | |
3818 | /* | |
3819 | * Check to see if we can just swipe the string. If so, it's a | |
3820 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
3821 | * It might even be a win on short strings if SvPVX(dstr) |
3822 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
3823 | */ |
3824 | ||
ff68c719 | 3825 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 3826 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
1c846c1f | 3827 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ |
4c8f17b9 | 3828 | SvLEN(sstr) && /* and really is a string */ |
645c22ef DM |
3829 | /* and won't be needed again, potentially */ |
3830 | !(PL_op && PL_op->op_type == OP_AASSIGN)) | |
a5f75d66 | 3831 | { |
adbc6bb1 | 3832 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
3833 | if (SvOOK(dstr)) { |
3834 | SvFLAGS(dstr) &= ~SVf_OOK; | |
3835 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
3836 | } | |
50483b2c | 3837 | else if (SvLEN(dstr)) |
a5f75d66 | 3838 | Safefree(SvPVX(dstr)); |
79072805 | 3839 | } |
a5f75d66 | 3840 | (void)SvPOK_only(dstr); |
463ee0b2 | 3841 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
3842 | SvLEN_set(dstr, SvLEN(sstr)); |
3843 | SvCUR_set(dstr, SvCUR(sstr)); | |
f4e86e0f | 3844 | |
79072805 | 3845 | SvTEMP_off(dstr); |
645c22ef | 3846 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ |
79072805 LW |
3847 | SvPV_set(sstr, Nullch); |
3848 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
3849 | SvCUR_set(sstr, 0); |
3850 | SvTEMP_off(sstr); | |
79072805 | 3851 | } |
645c22ef | 3852 | else { /* have to copy actual string */ |
8990e307 LW |
3853 | STRLEN len = SvCUR(sstr); |
3854 | ||
645c22ef | 3855 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ |
8990e307 LW |
3856 | Move(SvPVX(sstr),SvPVX(dstr),len,char); |
3857 | SvCUR_set(dstr, len); | |
3858 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 3859 | (void)SvPOK_only(dstr); |
79072805 | 3860 | } |
9aa983d2 | 3861 | if (sflags & SVf_UTF8) |
a7cb1f99 | 3862 | SvUTF8_on(dstr); |
79072805 | 3863 | /*SUPPRESS 560*/ |
8990e307 | 3864 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3865 | SvNOKp_on(dstr); |
3866 | if (sflags & SVf_NOK) | |
3867 | SvFLAGS(dstr) |= SVf_NOK; | |
463ee0b2 | 3868 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 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); |
463ee0b2 | 3876 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
3877 | } |
3878 | } | |
8990e307 | 3879 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
3880 | if (sflags & SVf_IOK) |
3881 | (void)SvIOK_only(dstr); | |
3882 | else { | |
9cbac4c7 DM |
3883 | (void)SvOK_off(dstr); |
3884 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
3885 | } |
3886 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 3887 | if (sflags & SVf_IVisUV) |
25da4f38 | 3888 | SvIsUV_on(dstr); |
3332b3c1 JH |
3889 | SvIVX(dstr) = SvIVX(sstr); |
3890 | if (sflags & SVp_NOK) { | |
3891 | if (sflags & SVf_NOK) | |
3892 | (void)SvNOK_on(dstr); | |
3893 | else | |
3894 | (void)SvNOKp_on(dstr); | |
3895 | SvNVX(dstr) = SvNVX(sstr); | |
3896 | } | |
3897 | } | |
3898 | else if (sflags & SVp_NOK) { | |
3899 | if (sflags & SVf_NOK) | |
3900 | (void)SvNOK_only(dstr); | |
3901 | else { | |
9cbac4c7 | 3902 | (void)SvOK_off(dstr); |
3332b3c1 JH |
3903 | SvNOKp_on(dstr); |
3904 | } | |
3905 | SvNVX(dstr) = SvNVX(sstr); | |
79072805 LW |
3906 | } |
3907 | else { | |
20408e3c | 3908 | if (dtype == SVt_PVGV) { |
e476b1b5 GS |
3909 | if (ckWARN(WARN_MISC)) |
3910 | Perl_warner(aTHX_ WARN_MISC, "Undefined value assigned to typeglob"); | |
20408e3c GS |
3911 | } |
3912 | else | |
3913 | (void)SvOK_off(dstr); | |
a0d0e21e | 3914 | } |
27c9684d AP |
3915 | if (SvTAINTED(sstr)) |
3916 | SvTAINT(dstr); | |
79072805 LW |
3917 | } |
3918 | ||
954c1994 GS |
3919 | /* |
3920 | =for apidoc sv_setsv_mg | |
3921 | ||
3922 | Like C<sv_setsv>, but also handles 'set' magic. | |
3923 | ||
3924 | =cut | |
3925 | */ | |
3926 | ||
79072805 | 3927 | void |
864dbfa3 | 3928 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
3929 | { |
3930 | sv_setsv(dstr,sstr); | |
3931 | SvSETMAGIC(dstr); | |
3932 | } | |
3933 | ||
954c1994 GS |
3934 | /* |
3935 | =for apidoc sv_setpvn | |
3936 | ||
3937 | Copies a string into an SV. The C<len> parameter indicates the number of | |
3938 | bytes to be copied. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
3939 | ||
3940 | =cut | |
3941 | */ | |
3942 | ||
ef50df4b | 3943 | void |
864dbfa3 | 3944 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 3945 | { |
c6f8c383 | 3946 | register char *dptr; |
22c522df | 3947 | |
2213622d | 3948 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 3949 | if (!ptr) { |
a0d0e21e | 3950 | (void)SvOK_off(sv); |
463ee0b2 LW |
3951 | return; |
3952 | } | |
22c522df JH |
3953 | else { |
3954 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
3955 | IV iv = len; | |
9c5ffd7c JH |
3956 | if (iv < 0) |
3957 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 3958 | } |
6fc92669 | 3959 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 3960 | |
79072805 | 3961 | SvGROW(sv, len + 1); |
c6f8c383 GA |
3962 | dptr = SvPVX(sv); |
3963 | Move(ptr,dptr,len,char); | |
3964 | dptr[len] = '\0'; | |
79072805 | 3965 | SvCUR_set(sv, len); |
1aa99e6b | 3966 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 3967 | SvTAINT(sv); |
79072805 LW |
3968 | } |
3969 | ||
954c1994 GS |
3970 | /* |
3971 | =for apidoc sv_setpvn_mg | |
3972 | ||
3973 | Like C<sv_setpvn>, but also handles 'set' magic. | |
3974 | ||
3975 | =cut | |
3976 | */ | |
3977 | ||
79072805 | 3978 | void |
864dbfa3 | 3979 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
3980 | { |
3981 | sv_setpvn(sv,ptr,len); | |
3982 | SvSETMAGIC(sv); | |
3983 | } | |
3984 | ||
954c1994 GS |
3985 | /* |
3986 | =for apidoc sv_setpv | |
3987 | ||
3988 | Copies a string into an SV. The string must be null-terminated. Does not | |
3989 | handle 'set' magic. See C<sv_setpv_mg>. | |
3990 | ||
3991 | =cut | |
3992 | */ | |
3993 | ||
ef50df4b | 3994 | void |
864dbfa3 | 3995 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
3996 | { |
3997 | register STRLEN len; | |
3998 | ||
2213622d | 3999 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4000 | if (!ptr) { |
a0d0e21e | 4001 | (void)SvOK_off(sv); |
463ee0b2 LW |
4002 | return; |
4003 | } | |
79072805 | 4004 | len = strlen(ptr); |
6fc92669 | 4005 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4006 | |
79072805 | 4007 | SvGROW(sv, len + 1); |
463ee0b2 | 4008 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4009 | SvCUR_set(sv, len); |
1aa99e6b | 4010 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4011 | SvTAINT(sv); |
4012 | } | |
4013 | ||
954c1994 GS |
4014 | /* |
4015 | =for apidoc sv_setpv_mg | |
4016 | ||
4017 | Like C<sv_setpv>, but also handles 'set' magic. | |
4018 | ||
4019 | =cut | |
4020 | */ | |
4021 | ||
463ee0b2 | 4022 | void |
864dbfa3 | 4023 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4024 | { |
4025 | sv_setpv(sv,ptr); | |
4026 | SvSETMAGIC(sv); | |
4027 | } | |
4028 | ||
954c1994 GS |
4029 | /* |
4030 | =for apidoc sv_usepvn | |
4031 | ||
4032 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4033 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4034 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4035 | string length, C<len>, must be supplied. This function will realloc the | |
4036 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4037 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4038 | See C<sv_usepvn_mg>. | |
4039 | ||
4040 | =cut | |
4041 | */ | |
4042 | ||
ef50df4b | 4043 | void |
864dbfa3 | 4044 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4045 | { |
2213622d | 4046 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 4047 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4048 | if (!ptr) { |
a0d0e21e | 4049 | (void)SvOK_off(sv); |
463ee0b2 LW |
4050 | return; |
4051 | } | |
a0ed51b3 | 4052 | (void)SvOOK_off(sv); |
50483b2c | 4053 | if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 LW |
4054 | Safefree(SvPVX(sv)); |
4055 | Renew(ptr, len+1, char); | |
4056 | SvPVX(sv) = ptr; | |
4057 | SvCUR_set(sv, len); | |
4058 | SvLEN_set(sv, len+1); | |
4059 | *SvEND(sv) = '\0'; | |
1aa99e6b | 4060 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4061 | SvTAINT(sv); |
79072805 LW |
4062 | } |
4063 | ||
954c1994 GS |
4064 | /* |
4065 | =for apidoc sv_usepvn_mg | |
4066 | ||
4067 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4068 | ||
4069 | =cut | |
4070 | */ | |
4071 | ||
ef50df4b | 4072 | void |
864dbfa3 | 4073 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4074 | { |
51c1089b | 4075 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4076 | SvSETMAGIC(sv); |
4077 | } | |
4078 | ||
645c22ef DM |
4079 | /* |
4080 | =for apidoc sv_force_normal_flags | |
4081 | ||
4082 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4083 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4084 | an xpvmg. The C<flags> parameter gets passed to C<sv_unref_flags()> | |
4085 | when unrefing. C<sv_force_normal> calls this function with flags set to 0. | |
4086 | ||
4087 | =cut | |
4088 | */ | |
4089 | ||
6fc92669 | 4090 | void |
840a7b70 | 4091 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4092 | { |
2213622d | 4093 | if (SvREADONLY(sv)) { |
1c846c1f NIS |
4094 | if (SvFAKE(sv)) { |
4095 | char *pvx = SvPVX(sv); | |
4096 | STRLEN len = SvCUR(sv); | |
4097 | U32 hash = SvUVX(sv); | |
4098 | SvGROW(sv, len + 1); | |
4099 | Move(pvx,SvPVX(sv),len,char); | |
4100 | *SvEND(sv) = '\0'; | |
4101 | SvFAKE_off(sv); | |
4102 | SvREADONLY_off(sv); | |
c3654f1a | 4103 | unsharepvn(pvx,SvUTF8(sv)?-len:len,hash); |
1c846c1f NIS |
4104 | } |
4105 | else if (PL_curcop != &PL_compiling) | |
cea2e8a9 | 4106 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4107 | } |
2213622d | 4108 | if (SvROK(sv)) |
840a7b70 | 4109 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4110 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4111 | sv_unglob(sv); | |
0f15f207 | 4112 | } |
1c846c1f | 4113 | |
645c22ef DM |
4114 | /* |
4115 | =for apidoc sv_force_normal | |
4116 | ||
4117 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4118 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4119 | an xpvmg. See also C<sv_force_normal_flags>. | |
4120 | ||
4121 | =cut | |
4122 | */ | |
4123 | ||
840a7b70 IZ |
4124 | void |
4125 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4126 | { | |
4127 | sv_force_normal_flags(sv, 0); | |
4128 | } | |
4129 | ||
954c1994 GS |
4130 | /* |
4131 | =for apidoc sv_chop | |
4132 | ||
1c846c1f | 4133 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4134 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4135 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4136 | string. Uses the "OOK hack". |
954c1994 GS |
4137 | |
4138 | =cut | |
4139 | */ | |
4140 | ||
79072805 | 4141 | void |
645c22ef | 4142 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
4143 | { |
4144 | register STRLEN delta; | |
4145 | ||
a0d0e21e | 4146 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4147 | return; |
2213622d | 4148 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4149 | if (SvTYPE(sv) < SVt_PVIV) |
4150 | sv_upgrade(sv,SVt_PVIV); | |
4151 | ||
4152 | if (!SvOOK(sv)) { | |
50483b2c JD |
4153 | if (!SvLEN(sv)) { /* make copy of shared string */ |
4154 | char *pvx = SvPVX(sv); | |
4155 | STRLEN len = SvCUR(sv); | |
4156 | SvGROW(sv, len + 1); | |
4157 | Move(pvx,SvPVX(sv),len,char); | |
4158 | *SvEND(sv) = '\0'; | |
4159 | } | |
463ee0b2 | 4160 | SvIVX(sv) = 0; |
79072805 LW |
4161 | SvFLAGS(sv) |= SVf_OOK; |
4162 | } | |
25da4f38 | 4163 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV); |
463ee0b2 | 4164 | delta = ptr - SvPVX(sv); |
79072805 LW |
4165 | SvLEN(sv) -= delta; |
4166 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
4167 | SvPVX(sv) += delta; |
4168 | SvIVX(sv) += delta; | |
79072805 LW |
4169 | } |
4170 | ||
954c1994 GS |
4171 | /* |
4172 | =for apidoc sv_catpvn | |
4173 | ||
4174 | Concatenates the string onto the end of the string which is in the SV. The | |
d5ce4a7c GA |
4175 | C<len> indicates number of bytes to copy. If the SV has the UTF8 |
4176 | status set, then the bytes appended should be valid UTF8. | |
4177 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. | |
954c1994 GS |
4178 | |
4179 | =cut | |
4180 | */ | |
4181 | ||
8d6d96c1 HS |
4182 | /* sv_catpvn() is aliased to Perl_sv_catpvn_macro; this function provided |
4183 | for binary compatibility only | |
4184 | */ | |
79072805 | 4185 | void |
8d6d96c1 | 4186 | Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen) |
79072805 | 4187 | { |
8d6d96c1 HS |
4188 | sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC); |
4189 | } | |
a0d0e21e | 4190 | |
8d6d96c1 HS |
4191 | /* |
4192 | =for apidoc sv_catpvn_flags | |
4193 | ||
4194 | Concatenates the string onto the end of the string which is in the SV. The | |
4195 | C<len> indicates number of bytes to copy. If the SV has the UTF8 | |
4196 | status set, then the bytes appended should be valid UTF8. | |
4197 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if | |
4198 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4199 | in terms of this function. | |
4200 | ||
4201 | =cut | |
4202 | */ | |
4203 | ||
4204 | void | |
4205 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4206 | { | |
4207 | STRLEN dlen; | |
4208 | char *dstr; | |
4209 | ||
4210 | dstr = SvPV_force_flags(dsv, dlen, flags); | |
4211 | SvGROW(dsv, dlen + slen + 1); | |
4212 | if (sstr == dstr) | |
4213 | sstr = SvPVX(dsv); | |
4214 | Move(sstr, SvPVX(dsv) + dlen, slen, char); | |
4215 | SvCUR(dsv) += slen; | |
4216 | *SvEND(dsv) = '\0'; | |
4217 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4218 | SvTAINT(dsv); | |
79072805 LW |
4219 | } |
4220 | ||
954c1994 GS |
4221 | /* |
4222 | =for apidoc sv_catpvn_mg | |
4223 | ||
4224 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4225 | ||
4226 | =cut | |
4227 | */ | |
4228 | ||
79072805 | 4229 | void |
864dbfa3 | 4230 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4231 | { |
4232 | sv_catpvn(sv,ptr,len); | |
4233 | SvSETMAGIC(sv); | |
4234 | } | |
4235 | ||
954c1994 GS |
4236 | /* |
4237 | =for apidoc sv_catsv | |
4238 | ||
13e8c8e3 JH |
4239 | Concatenates the string from SV C<ssv> onto the end of the string in |
4240 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4241 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4242 | |
13e8c8e3 | 4243 | =cut */ |
954c1994 | 4244 | |
8d6d96c1 HS |
4245 | /* sv_catsv() is aliased to Perl_sv_catsv_macro; this function provided |
4246 | for binary compatibility only | |
4247 | */ | |
4248 | void | |
4249 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) | |
4250 | { | |
4251 | sv_catsv_flags(dstr, sstr, SV_GMAGIC); | |
4252 | } | |
4253 | ||
4254 | /* | |
4255 | =for apidoc sv_catsv_flags | |
4256 | ||
4257 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4258 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4259 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4260 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4261 | ||
4262 | =cut */ | |
4263 | ||
ef50df4b | 4264 | void |
8d6d96c1 | 4265 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4266 | { |
13e8c8e3 JH |
4267 | char *spv; |
4268 | STRLEN slen; | |
46199a12 | 4269 | if (!ssv) |
79072805 | 4270 | return; |
46199a12 | 4271 | if ((spv = SvPV(ssv, slen))) { |
46199a12 | 4272 | bool sutf8 = DO_UTF8(ssv); |
8d6d96c1 | 4273 | bool dutf8; |
13e8c8e3 | 4274 | |
8d6d96c1 HS |
4275 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4276 | mg_get(dsv); | |
4277 | dutf8 = DO_UTF8(dsv); | |
4278 | ||
4279 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4280 | if (dutf8) { |
46199a12 | 4281 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4282 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4283 | |
46199a12 | 4284 | sv_utf8_upgrade(csv); |
8d6d96c1 | 4285 | spv = SvPV(csv, slen); |
13e8c8e3 | 4286 | } |
8d6d96c1 HS |
4287 | else |
4288 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4289 | } |
8d6d96c1 | 4290 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4291 | } |
79072805 LW |
4292 | } |
4293 | ||
954c1994 GS |
4294 | /* |
4295 | =for apidoc sv_catsv_mg | |
4296 | ||
4297 | Like C<sv_catsv>, but also handles 'set' magic. | |
4298 | ||
4299 | =cut | |
4300 | */ | |
4301 | ||
79072805 | 4302 | void |
46199a12 | 4303 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4304 | { |
46199a12 JH |
4305 | sv_catsv(dsv,ssv); |
4306 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4307 | } |
4308 | ||
954c1994 GS |
4309 | /* |
4310 | =for apidoc sv_catpv | |
4311 | ||
4312 | Concatenates the string onto the end of the string which is in the SV. | |
d5ce4a7c GA |
4313 | If the SV has the UTF8 status set, then the bytes appended should be |
4314 | valid UTF8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4315 | |
d5ce4a7c | 4316 | =cut */ |
954c1994 | 4317 | |
ef50df4b | 4318 | void |
0c981600 | 4319 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4320 | { |
4321 | register STRLEN len; | |
463ee0b2 | 4322 | STRLEN tlen; |
748a9306 | 4323 | char *junk; |
79072805 | 4324 | |
0c981600 | 4325 | if (!ptr) |
79072805 | 4326 | return; |
748a9306 | 4327 | junk = SvPV_force(sv, tlen); |
0c981600 | 4328 | len = strlen(ptr); |
463ee0b2 | 4329 | SvGROW(sv, tlen + len + 1); |
0c981600 JH |
4330 | if (ptr == junk) |
4331 | ptr = SvPVX(sv); | |
4332 | Move(ptr,SvPVX(sv)+tlen,len+1,char); | |
79072805 | 4333 | SvCUR(sv) += len; |
d41ff1b8 | 4334 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4335 | SvTAINT(sv); |
79072805 LW |
4336 | } |
4337 | ||
954c1994 GS |
4338 | /* |
4339 | =for apidoc sv_catpv_mg | |
4340 | ||
4341 | Like C<sv_catpv>, but also handles 'set' magic. | |
4342 | ||
4343 | =cut | |
4344 | */ | |
4345 | ||
ef50df4b | 4346 | void |
0c981600 | 4347 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4348 | { |
0c981600 | 4349 | sv_catpv(sv,ptr); |
ef50df4b GS |
4350 | SvSETMAGIC(sv); |
4351 | } | |
4352 | ||
645c22ef DM |
4353 | /* |
4354 | =for apidoc newSV | |
4355 | ||
4356 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4357 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4358 | macro. | |
4359 | ||
4360 | =cut | |
4361 | */ | |
4362 | ||
79072805 | 4363 | SV * |
864dbfa3 | 4364 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4365 | { |
4366 | register SV *sv; | |
1c846c1f | 4367 | |
4561caa4 | 4368 | new_SV(sv); |
79072805 LW |
4369 | if (len) { |
4370 | sv_upgrade(sv, SVt_PV); | |
4371 | SvGROW(sv, len + 1); | |
4372 | } | |
4373 | return sv; | |
4374 | } | |
4375 | ||
954c1994 GS |
4376 | /* |
4377 | =for apidoc sv_magic | |
4378 | ||
645c22ef DM |
4379 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4380 | then adds a new magic item of type C<how> to the head of the magic list. | |
4381 | ||
4382 | C<name> is assumed to contain an C<SV*> if C<(name && namelen == HEf_SVKEY)> | |
954c1994 GS |
4383 | |
4384 | =cut | |
4385 | */ | |
4386 | ||
79072805 | 4387 | void |
864dbfa3 | 4388 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) |
79072805 LW |
4389 | { |
4390 | MAGIC* mg; | |
1c846c1f | 4391 | |
0f15f207 | 4392 | if (SvREADONLY(sv)) { |
14befaf4 | 4393 | if (PL_curcop != &PL_compiling |
14befaf4 DM |
4394 | && how != PERL_MAGIC_regex_global |
4395 | && how != PERL_MAGIC_bm | |
4396 | && how != PERL_MAGIC_fm | |
6fa402ec | 4397 | && how != PERL_MAGIC_sv |
14befaf4 DM |
4398 | ) |
4399 | { | |
cea2e8a9 | 4400 | Perl_croak(aTHX_ PL_no_modify); |
14befaf4 | 4401 | } |
0f15f207 | 4402 | } |
14befaf4 | 4403 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { |
748a9306 | 4404 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { |
14befaf4 | 4405 | if (how == PERL_MAGIC_taint) |
565764a8 | 4406 | mg->mg_len |= 1; |
463ee0b2 | 4407 | return; |
748a9306 | 4408 | } |
463ee0b2 LW |
4409 | } |
4410 | else { | |
c6f8c383 | 4411 | (void)SvUPGRADE(sv, SVt_PVMG); |
463ee0b2 | 4412 | } |
79072805 LW |
4413 | Newz(702,mg, 1, MAGIC); |
4414 | mg->mg_moremagic = SvMAGIC(sv); | |
79072805 | 4415 | SvMAGIC(sv) = mg; |
75f9d97a JH |
4416 | |
4417 | /* Some magic sontains a reference loop, where the sv and object refer to | |
4418 | each other. To prevent a avoid a reference loop that would prevent such | |
4419 | objects being freed, we look for such loops and if we find one we avoid | |
4420 | incrementing the object refcount. */ | |
14befaf4 DM |
4421 | if (!obj || obj == sv || |
4422 | how == PERL_MAGIC_arylen || | |
4423 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
4424 | (SvTYPE(obj) == SVt_PVGV && |
4425 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4426 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
4427 | GvFORM(obj) == (CV*)sv))) | |
4428 | { | |
8990e307 | 4429 | mg->mg_obj = obj; |
75f9d97a | 4430 | } |
85e6fe83 | 4431 | else { |
8990e307 | 4432 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4433 | mg->mg_flags |= MGf_REFCOUNTED; |
4434 | } | |
79072805 | 4435 | mg->mg_type = how; |
565764a8 | 4436 | mg->mg_len = namlen; |
9cbac4c7 | 4437 | if (name) { |
1edc1566 | 4438 | if (namlen >= 0) |
4439 | mg->mg_ptr = savepvn(name, namlen); | |
c6ee37c5 | 4440 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4441 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
9cbac4c7 | 4442 | } |
1c846c1f | 4443 | |
79072805 | 4444 | switch (how) { |
14befaf4 | 4445 | case PERL_MAGIC_sv: |
22c35a8c | 4446 | mg->mg_virtual = &PL_vtbl_sv; |
79072805 | 4447 | break; |
14befaf4 | 4448 | case PERL_MAGIC_overload: |
22c35a8c | 4449 | mg->mg_virtual = &PL_vtbl_amagic; |
a0d0e21e | 4450 | break; |
14befaf4 | 4451 | case PERL_MAGIC_overload_elem: |
22c35a8c | 4452 | mg->mg_virtual = &PL_vtbl_amagicelem; |
a0d0e21e | 4453 | break; |
14befaf4 | 4454 | case PERL_MAGIC_overload_table: |
d460ef45 | 4455 | mg->mg_virtual = &PL_vtbl_ovrld; |
a0d0e21e | 4456 | break; |
14befaf4 | 4457 | case PERL_MAGIC_bm: |
22c35a8c | 4458 | mg->mg_virtual = &PL_vtbl_bm; |
79072805 | 4459 | break; |
14befaf4 | 4460 | case PERL_MAGIC_regdata: |
22c35a8c | 4461 | mg->mg_virtual = &PL_vtbl_regdata; |
6cef1e77 | 4462 | break; |
14befaf4 | 4463 | case PERL_MAGIC_regdatum: |
22c35a8c | 4464 | mg->mg_virtual = &PL_vtbl_regdatum; |
6cef1e77 | 4465 | break; |
14befaf4 | 4466 | case PERL_MAGIC_env: |
22c35a8c | 4467 | mg->mg_virtual = &PL_vtbl_env; |
79072805 | 4468 | break; |
14befaf4 | 4469 | case PERL_MAGIC_fm: |
22c35a8c | 4470 | mg->mg_virtual = &PL_vtbl_fm; |
55497cff | 4471 | break; |
14befaf4 | 4472 | case PERL_MAGIC_envelem: |
22c35a8c | 4473 | mg->mg_virtual = &PL_vtbl_envelem; |
79072805 | 4474 | break; |
14befaf4 | 4475 | case PERL_MAGIC_regex_global: |
22c35a8c | 4476 | mg->mg_virtual = &PL_vtbl_mglob; |
93a17b20 | 4477 | break; |
14befaf4 | 4478 | case PERL_MAGIC_isa: |
22c35a8c | 4479 | mg->mg_virtual = &PL_vtbl_isa; |
463ee0b2 | 4480 | break; |
14befaf4 | 4481 | case PERL_MAGIC_isaelem: |
22c35a8c | 4482 | mg->mg_virtual = &PL_vtbl_isaelem; |
463ee0b2 | 4483 | break; |
14befaf4 | 4484 | case PERL_MAGIC_nkeys: |
22c35a8c | 4485 | mg->mg_virtual = &PL_vtbl_nkeys; |
16660edb | 4486 | break; |
14befaf4 | 4487 | case PERL_MAGIC_dbfile: |
a0d0e21e | 4488 | SvRMAGICAL_on(sv); |
93a17b20 LW |
4489 | mg->mg_virtual = 0; |
4490 | break; | |
14befaf4 | 4491 | case PERL_MAGIC_dbline: |
22c35a8c | 4492 | mg->mg_virtual = &PL_vtbl_dbline; |
79072805 | 4493 | break; |
f93b4edd | 4494 | #ifdef USE_THREADS |
14befaf4 | 4495 | case PERL_MAGIC_mutex: |
22c35a8c | 4496 | mg->mg_virtual = &PL_vtbl_mutex; |
f93b4edd MB |
4497 | break; |
4498 | #endif /* USE_THREADS */ | |
36477c24 | 4499 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 4500 | case PERL_MAGIC_collxfrm: |
22c35a8c | 4501 | mg->mg_virtual = &PL_vtbl_collxfrm; |
bbce6d69 | 4502 | break; |
36477c24 | 4503 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 4504 | case PERL_MAGIC_tied: |
22c35a8c | 4505 | mg->mg_virtual = &PL_vtbl_pack; |
463ee0b2 | 4506 | break; |
14befaf4 DM |
4507 | case PERL_MAGIC_tiedelem: |
4508 | case PERL_MAGIC_tiedscalar: | |
22c35a8c | 4509 | mg->mg_virtual = &PL_vtbl_packelem; |
463ee0b2 | 4510 | break; |
14befaf4 | 4511 | case PERL_MAGIC_qr: |
22c35a8c | 4512 | mg->mg_virtual = &PL_vtbl_regexp; |
c277df42 | 4513 | break; |
14befaf4 | 4514 | case PERL_MAGIC_sig: |
22c35a8c | 4515 | mg->mg_virtual = &PL_vtbl_sig; |
79072805 | 4516 | break; |
14befaf4 | 4517 | case PERL_MAGIC_sigelem: |
22c35a8c | 4518 | mg->mg_virtual = &PL_vtbl_sigelem; |
79072805 | 4519 | break; |
14befaf4 | 4520 | case PERL_MAGIC_taint: |
22c35a8c | 4521 | mg->mg_virtual = &PL_vtbl_taint; |
565764a8 | 4522 | mg->mg_len = 1; |
463ee0b2 | 4523 | break; |
14befaf4 | 4524 | case PERL_MAGIC_uvar: |
22c35a8c | 4525 | mg->mg_virtual = &PL_vtbl_uvar; |
79072805 | 4526 | break; |
14befaf4 | 4527 | case PERL_MAGIC_vec: |
22c35a8c | 4528 | mg->mg_virtual = &PL_vtbl_vec; |
79072805 | 4529 | break; |
14befaf4 | 4530 | case PERL_MAGIC_substr: |
22c35a8c | 4531 | mg->mg_virtual = &PL_vtbl_substr; |
79072805 | 4532 | break; |
14befaf4 | 4533 | case PERL_MAGIC_defelem: |
22c35a8c | 4534 | mg->mg_virtual = &PL_vtbl_defelem; |
5f05dabc | 4535 | break; |
14befaf4 | 4536 | case PERL_MAGIC_glob: |
22c35a8c | 4537 | mg->mg_virtual = &PL_vtbl_glob; |
79072805 | 4538 | break; |
14befaf4 | 4539 | case PERL_MAGIC_arylen: |
22c35a8c | 4540 | mg->mg_virtual = &PL_vtbl_arylen; |
79072805 | 4541 | break; |
14befaf4 | 4542 | case PERL_MAGIC_pos: |
22c35a8c | 4543 | mg->mg_virtual = &PL_vtbl_pos; |
a0d0e21e | 4544 | break; |
14befaf4 | 4545 | case PERL_MAGIC_backref: |
810b8aa5 GS |
4546 | mg->mg_virtual = &PL_vtbl_backref; |
4547 | break; | |
14befaf4 DM |
4548 | case PERL_MAGIC_ext: |
4549 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
4550 | /* Useful for attaching extension internal data to perl vars. */ |
4551 | /* Note that multiple extensions may clash if magical scalars */ | |
4552 | /* etc holding private data from one are passed to another. */ | |
4553 | SvRMAGICAL_on(sv); | |
a0d0e21e | 4554 | break; |
79072805 | 4555 | default: |
14befaf4 | 4556 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 4557 | } |
8990e307 LW |
4558 | mg_magical(sv); |
4559 | if (SvGMAGICAL(sv)) | |
4560 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 LW |
4561 | } |
4562 | ||
c461cf8f JH |
4563 | /* |
4564 | =for apidoc sv_unmagic | |
4565 | ||
645c22ef | 4566 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
4567 | |
4568 | =cut | |
4569 | */ | |
4570 | ||
463ee0b2 | 4571 | int |
864dbfa3 | 4572 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
4573 | { |
4574 | MAGIC* mg; | |
4575 | MAGIC** mgp; | |
91bba347 | 4576 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
4577 | return 0; |
4578 | mgp = &SvMAGIC(sv); | |
4579 | for (mg = *mgp; mg; mg = *mgp) { | |
4580 | if (mg->mg_type == type) { | |
4581 | MGVTBL* vtbl = mg->mg_virtual; | |
4582 | *mgp = mg->mg_moremagic; | |
1d7c1841 | 4583 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 4584 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 4585 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
565764a8 | 4586 | if (mg->mg_len >= 0) |
1edc1566 | 4587 | Safefree(mg->mg_ptr); |
565764a8 | 4588 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 4589 | SvREFCNT_dec((SV*)mg->mg_ptr); |
9cbac4c7 | 4590 | } |
a0d0e21e LW |
4591 | if (mg->mg_flags & MGf_REFCOUNTED) |
4592 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
4593 | Safefree(mg); |
4594 | } | |
4595 | else | |
4596 | mgp = &mg->mg_moremagic; | |
79072805 | 4597 | } |
91bba347 | 4598 | if (!SvMAGIC(sv)) { |
463ee0b2 | 4599 | SvMAGICAL_off(sv); |
06759ea0 | 4600 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
4601 | } |
4602 | ||
4603 | return 0; | |
79072805 LW |
4604 | } |
4605 | ||
c461cf8f JH |
4606 | /* |
4607 | =for apidoc sv_rvweaken | |
4608 | ||
645c22ef DM |
4609 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
4610 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
4611 | push a back-reference to this RV onto the array of backreferences | |
4612 | associated with that magic. | |
c461cf8f JH |
4613 | |
4614 | =cut | |
4615 | */ | |
4616 | ||
810b8aa5 | 4617 | SV * |
864dbfa3 | 4618 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
4619 | { |
4620 | SV *tsv; | |
4621 | if (!SvOK(sv)) /* let undefs pass */ | |
4622 | return sv; | |
4623 | if (!SvROK(sv)) | |
cea2e8a9 | 4624 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 4625 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 4626 | if (ckWARN(WARN_MISC)) |
cea2e8a9 | 4627 | Perl_warner(aTHX_ WARN_MISC, "Reference is already weak"); |
810b8aa5 GS |
4628 | return sv; |
4629 | } | |
4630 | tsv = SvRV(sv); | |
4631 | sv_add_backref(tsv, sv); | |
4632 | SvWEAKREF_on(sv); | |
1c846c1f | 4633 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
4634 | return sv; |
4635 | } | |
4636 | ||
645c22ef DM |
4637 | /* Give tsv backref magic if it hasn't already got it, then push a |
4638 | * back-reference to sv onto the array associated with the backref magic. | |
4639 | */ | |
4640 | ||
810b8aa5 | 4641 | STATIC void |
cea2e8a9 | 4642 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
4643 | { |
4644 | AV *av; | |
4645 | MAGIC *mg; | |
14befaf4 | 4646 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
4647 | av = (AV*)mg->mg_obj; |
4648 | else { | |
4649 | av = newAV(); | |
14befaf4 | 4650 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
810b8aa5 GS |
4651 | SvREFCNT_dec(av); /* for sv_magic */ |
4652 | } | |
4653 | av_push(av,sv); | |
4654 | } | |
4655 | ||
645c22ef DM |
4656 | /* delete a back-reference to ourselves from the backref magic associated |
4657 | * with the SV we point to. | |
4658 | */ | |
4659 | ||
1c846c1f | 4660 | STATIC void |
cea2e8a9 | 4661 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
4662 | { |
4663 | AV *av; | |
4664 | SV **svp; | |
4665 | I32 i; | |
4666 | SV *tsv = SvRV(sv); | |
4667 | MAGIC *mg; | |
14befaf4 | 4668 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 4669 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
4670 | av = (AV *)mg->mg_obj; |
4671 | svp = AvARRAY(av); | |
4672 | i = AvFILLp(av); | |
4673 | while (i >= 0) { | |
4674 | if (svp[i] == sv) { | |
4675 | svp[i] = &PL_sv_undef; /* XXX */ | |
4676 | } | |
4677 | i--; | |
4678 | } | |
4679 | } | |
4680 | ||
954c1994 GS |
4681 | /* |
4682 | =for apidoc sv_insert | |
4683 | ||
4684 | Inserts a string at the specified offset/length within the SV. Similar to | |
4685 | the Perl substr() function. | |
4686 | ||
4687 | =cut | |
4688 | */ | |
4689 | ||
79072805 | 4690 | void |
864dbfa3 | 4691 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
4692 | { |
4693 | register char *big; | |
4694 | register char *mid; | |
4695 | register char *midend; | |
4696 | register char *bigend; | |
4697 | register I32 i; | |
6ff81951 | 4698 | STRLEN curlen; |
1c846c1f | 4699 | |
79072805 | 4700 | |
8990e307 | 4701 | if (!bigstr) |
cea2e8a9 | 4702 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 4703 | SvPV_force(bigstr, curlen); |
60fa28ff | 4704 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
4705 | if (offset + len > curlen) { |
4706 | SvGROW(bigstr, offset+len+1); | |
4707 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
4708 | SvCUR_set(bigstr, offset+len); | |
4709 | } | |
79072805 | 4710 | |
69b47968 | 4711 | SvTAINT(bigstr); |
79072805 LW |
4712 | i = littlelen - len; |
4713 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 4714 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
4715 | mid = big + offset + len; |
4716 | midend = bigend = big + SvCUR(bigstr); | |
4717 | bigend += i; | |
4718 | *bigend = '\0'; | |
4719 | while (midend > mid) /* shove everything down */ | |
4720 | *--bigend = *--midend; | |
4721 | Move(little,big+offset,littlelen,char); | |
4722 | SvCUR(bigstr) += i; | |
4723 | SvSETMAGIC(bigstr); | |
4724 | return; | |
4725 | } | |
4726 | else if (i == 0) { | |
463ee0b2 | 4727 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
4728 | SvSETMAGIC(bigstr); |
4729 | return; | |
4730 | } | |
4731 | ||
463ee0b2 | 4732 | big = SvPVX(bigstr); |
79072805 LW |
4733 | mid = big + offset; |
4734 | midend = mid + len; | |
4735 | bigend = big + SvCUR(bigstr); | |
4736 | ||
4737 | if (midend > bigend) | |
cea2e8a9 | 4738 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
4739 | |
4740 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
4741 | if (littlelen) { | |
4742 | Move(little, mid, littlelen,char); | |
4743 | mid += littlelen; | |
4744 | } | |
4745 | i = bigend - midend; | |
4746 | if (i > 0) { | |
4747 | Move(midend, mid, i,char); | |
4748 | mid += i; | |
4749 | } | |
4750 | *mid = '\0'; | |
4751 | SvCUR_set(bigstr, mid - big); | |
4752 | } | |
4753 | /*SUPPRESS 560*/ | |
155aba94 | 4754 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
4755 | midend -= littlelen; |
4756 | mid = midend; | |
4757 | sv_chop(bigstr,midend-i); | |
4758 | big += i; | |
4759 | while (i--) | |
4760 | *--midend = *--big; | |
4761 | if (littlelen) | |
4762 | Move(little, mid, littlelen,char); | |
4763 | } | |
4764 | else if (littlelen) { | |
4765 | midend -= littlelen; | |
4766 | sv_chop(bigstr,midend); | |
4767 | Move(little,midend,littlelen,char); | |
4768 | } | |
4769 | else { | |
4770 | sv_chop(bigstr,midend); | |
4771 | } | |
4772 | SvSETMAGIC(bigstr); | |
4773 | } | |
4774 | ||
c461cf8f JH |
4775 | /* |
4776 | =for apidoc sv_replace | |
4777 | ||
4778 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
4779 | The target SV physically takes over ownership of the body of the source SV |
4780 | and inherits its flags; however, the target keeps any magic it owns, | |
4781 | and any magic in the source is discarded. | |
4782 | Note that this a rather specialist SV copying operation; most of the | |
4783 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. | |
c461cf8f JH |
4784 | |
4785 | =cut | |
4786 | */ | |
79072805 LW |
4787 | |
4788 | void | |
864dbfa3 | 4789 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 LW |
4790 | { |
4791 | U32 refcnt = SvREFCNT(sv); | |
2213622d | 4792 | SV_CHECK_THINKFIRST(sv); |
0453d815 PM |
4793 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
4794 | Perl_warner(aTHX_ WARN_INTERNAL, "Reference miscount in sv_replace()"); | |
93a17b20 | 4795 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
4796 | if (SvMAGICAL(nsv)) |
4797 | mg_free(nsv); | |
4798 | else | |
4799 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 4800 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 4801 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
4802 | SvMAGICAL_off(sv); |
4803 | SvMAGIC(sv) = 0; | |
4804 | } | |
79072805 LW |
4805 | SvREFCNT(sv) = 0; |
4806 | sv_clear(sv); | |
477f5d66 | 4807 | assert(!SvREFCNT(sv)); |
79072805 LW |
4808 | StructCopy(nsv,sv,SV); |
4809 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 4810 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
463ee0b2 | 4811 | del_SV(nsv); |
79072805 LW |
4812 | } |
4813 | ||
c461cf8f JH |
4814 | /* |
4815 | =for apidoc sv_clear | |
4816 | ||
645c22ef DM |
4817 | Clear an SV: call any destructors, free up any memory used by the body, |
4818 | and free the body itself. The SV's head is I<not> freed, although | |
4819 | its type is set to all 1's so that it won't inadvertently be assumed | |
4820 | to be live during global destruction etc. | |
4821 | This function should only be called when REFCNT is zero. Most of the time | |
4822 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
4823 | instead. | |
c461cf8f JH |
4824 | |
4825 | =cut | |
4826 | */ | |
4827 | ||
79072805 | 4828 | void |
864dbfa3 | 4829 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 4830 | { |
ec12f114 | 4831 | HV* stash; |
79072805 LW |
4832 | assert(sv); |
4833 | assert(SvREFCNT(sv) == 0); | |
4834 | ||
ed6116ce | 4835 | if (SvOBJECT(sv)) { |
3280af22 | 4836 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 4837 | dSP; |
32251b26 | 4838 | CV* destructor; |
837485b6 | 4839 | SV tmpref; |
a0d0e21e | 4840 | |
837485b6 GS |
4841 | Zero(&tmpref, 1, SV); |
4842 | sv_upgrade(&tmpref, SVt_RV); | |
4843 | SvROK_on(&tmpref); | |
4844 | SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ | |
4845 | SvREFCNT(&tmpref) = 1; | |
8ebc5c01 | 4846 | |
d460ef45 | 4847 | do { |
4e8e7886 | 4848 | stash = SvSTASH(sv); |
32251b26 | 4849 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 GS |
4850 | if (destructor) { |
4851 | ENTER; | |
e788e7d3 | 4852 | PUSHSTACKi(PERLSI_DESTROY); |
837485b6 | 4853 | SvRV(&tmpref) = SvREFCNT_inc(sv); |
4e8e7886 GS |
4854 | EXTEND(SP, 2); |
4855 | PUSHMARK(SP); | |
837485b6 | 4856 | PUSHs(&tmpref); |
4e8e7886 | 4857 | PUTBACK; |
32251b26 | 4858 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR); |
4e8e7886 | 4859 | SvREFCNT(sv)--; |
d3acc0f7 | 4860 | POPSTACK; |
3095d977 | 4861 | SPAGAIN; |
4e8e7886 GS |
4862 | LEAVE; |
4863 | } | |
4864 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 4865 | |
837485b6 | 4866 | del_XRV(SvANY(&tmpref)); |
6f44e0a4 JP |
4867 | |
4868 | if (SvREFCNT(sv)) { | |
4869 | if (PL_in_clean_objs) | |
cea2e8a9 | 4870 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
6f44e0a4 JP |
4871 | HvNAME(stash)); |
4872 | /* DESTROY gave object new lease on life */ | |
4873 | return; | |
4874 | } | |
a0d0e21e | 4875 | } |
4e8e7886 | 4876 | |
a0d0e21e | 4877 | if (SvOBJECT(sv)) { |
4e8e7886 | 4878 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
4879 | SvOBJECT_off(sv); /* Curse the object. */ |
4880 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 4881 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 4882 | } |
463ee0b2 | 4883 | } |
524189f1 JH |
4884 | if (SvTYPE(sv) >= SVt_PVMG) { |
4885 | if (SvMAGIC(sv)) | |
4886 | mg_free(sv); | |
4887 | if (SvFLAGS(sv) & SVpad_TYPED) | |
4888 | SvREFCNT_dec(SvSTASH(sv)); | |
4889 | } | |
ec12f114 | 4890 | stash = NULL; |
79072805 | 4891 | switch (SvTYPE(sv)) { |
8990e307 | 4892 | case SVt_PVIO: |
df0bd2f4 GS |
4893 | if (IoIFP(sv) && |
4894 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 4895 | IoIFP(sv) != PerlIO_stdout() && |
4896 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 4897 | { |
f2b5be74 | 4898 | io_close((IO*)sv, FALSE); |
93578b34 | 4899 | } |
1d7c1841 | 4900 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 4901 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 4902 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
4903 | Safefree(IoTOP_NAME(sv)); |
4904 | Safefree(IoFMT_NAME(sv)); | |
4905 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 4906 | /* FALL THROUGH */ |
79072805 | 4907 | case SVt_PVBM: |
a0d0e21e | 4908 | goto freescalar; |
79072805 | 4909 | case SVt_PVCV: |
748a9306 | 4910 | case SVt_PVFM: |
85e6fe83 | 4911 | cv_undef((CV*)sv); |
a0d0e21e | 4912 | goto freescalar; |
79072805 | 4913 | case SVt_PVHV: |
85e6fe83 | 4914 | hv_undef((HV*)sv); |
a0d0e21e | 4915 | break; |
79072805 | 4916 | case SVt_PVAV: |
85e6fe83 | 4917 | av_undef((AV*)sv); |
a0d0e21e | 4918 | break; |
02270b4e GS |
4919 | case SVt_PVLV: |
4920 | SvREFCNT_dec(LvTARG(sv)); | |
4921 | goto freescalar; | |
a0d0e21e | 4922 | case SVt_PVGV: |
1edc1566 | 4923 | gp_free((GV*)sv); |
a0d0e21e | 4924 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
4925 | /* cannot decrease stash refcount yet, as we might recursively delete |
4926 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
4927 | of stash until current sv is completely gone. | |
4928 | -- JohnPC, 27 Mar 1998 */ | |
4929 | stash = GvSTASH(sv); | |
a0d0e21e | 4930 | /* FALL THROUGH */ |
79072805 | 4931 | case SVt_PVMG: |
79072805 LW |
4932 | case SVt_PVNV: |
4933 | case SVt_PVIV: | |
a0d0e21e LW |
4934 | freescalar: |
4935 | (void)SvOOK_off(sv); | |
79072805 LW |
4936 | /* FALL THROUGH */ |
4937 | case SVt_PV: | |
a0d0e21e | 4938 | case SVt_RV: |
810b8aa5 GS |
4939 | if (SvROK(sv)) { |
4940 | if (SvWEAKREF(sv)) | |
4941 | sv_del_backref(sv); | |
4942 | else | |
4943 | SvREFCNT_dec(SvRV(sv)); | |
4944 | } | |
1edc1566 | 4945 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 4946 | Safefree(SvPVX(sv)); |
1c846c1f | 4947 | else if (SvPVX(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
c3654f1a | 4948 | unsharepvn(SvPVX(sv),SvUTF8(sv)?-SvCUR(sv):SvCUR(sv),SvUVX(sv)); |
1c846c1f NIS |
4949 | SvFAKE_off(sv); |
4950 | } | |
79072805 | 4951 | break; |
a0d0e21e | 4952 | /* |
79072805 | 4953 | case SVt_NV: |
79072805 | 4954 | case SVt_IV: |
79072805 LW |
4955 | case SVt_NULL: |
4956 | break; | |
a0d0e21e | 4957 | */ |
79072805 LW |
4958 | } |
4959 | ||
4960 | switch (SvTYPE(sv)) { | |
4961 | case SVt_NULL: | |
4962 | break; | |
79072805 LW |
4963 | case SVt_IV: |
4964 | del_XIV(SvANY(sv)); | |
4965 | break; | |
4966 | case SVt_NV: | |
4967 | del_XNV(SvANY(sv)); | |
4968 | break; | |
ed6116ce LW |
4969 | case SVt_RV: |
4970 | del_XRV(SvANY(sv)); | |
4971 | break; | |
79072805 LW |
4972 | case SVt_PV: |
4973 | del_XPV(SvANY(sv)); | |
4974 | break; | |
4975 | case SVt_PVIV: | |
4976 | del_XPVIV(SvANY(sv)); | |
4977 | break; | |
4978 | case SVt_PVNV: | |
4979 | del_XPVNV(SvANY(sv)); | |
4980 | break; | |
4981 | case SVt_PVMG: | |
4982 | del_XPVMG(SvANY(sv)); | |
4983 | break; | |
4984 | case SVt_PVLV: | |
4985 | del_XPVLV(SvANY(sv)); | |
4986 | break; | |
4987 | case SVt_PVAV: | |
4988 | del_XPVAV(SvANY(sv)); | |
4989 | break; | |
4990 | case SVt_PVHV: | |
4991 | del_XPVHV(SvANY(sv)); | |
4992 | break; | |
4993 | case SVt_PVCV: | |
4994 | del_XPVCV(SvANY(sv)); | |
4995 | break; | |
4996 | case SVt_PVGV: | |
4997 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
4998 | /* code duplication for increased performance. */ |
4999 | SvFLAGS(sv) &= SVf_BREAK; | |
5000 | SvFLAGS(sv) |= SVTYPEMASK; | |
5001 | /* decrease refcount of the stash that owns this GV, if any */ | |
5002 | if (stash) | |
5003 | SvREFCNT_dec(stash); | |
5004 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
5005 | case SVt_PVBM: |
5006 | del_XPVBM(SvANY(sv)); | |
5007 | break; | |
5008 | case SVt_PVFM: | |
5009 | del_XPVFM(SvANY(sv)); | |
5010 | break; | |
8990e307 LW |
5011 | case SVt_PVIO: |
5012 | del_XPVIO(SvANY(sv)); | |
5013 | break; | |
79072805 | 5014 | } |
a0d0e21e | 5015 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 5016 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
5017 | } |
5018 | ||
645c22ef DM |
5019 | /* |
5020 | =for apidoc sv_newref | |
5021 | ||
5022 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5023 | instead. | |
5024 | ||
5025 | =cut | |
5026 | */ | |
5027 | ||
79072805 | 5028 | SV * |
864dbfa3 | 5029 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5030 | { |
463ee0b2 | 5031 | if (sv) |
dce16143 | 5032 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
5033 | return sv; |
5034 | } | |
5035 | ||
c461cf8f JH |
5036 | /* |
5037 | =for apidoc sv_free | |
5038 | ||
645c22ef DM |
5039 | Decrement an SV's reference count, and if it drops to zero, call |
5040 | C<sv_clear> to invoke destructors and free up any memory used by | |
5041 | the body; finally, deallocate the SV's head itself. | |
5042 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5043 | |
5044 | =cut | |
5045 | */ | |
5046 | ||
79072805 | 5047 | void |
864dbfa3 | 5048 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5049 | { |
dce16143 MB |
5050 | int refcount_is_zero; |
5051 | ||
79072805 LW |
5052 | if (!sv) |
5053 | return; | |
a0d0e21e LW |
5054 | if (SvREFCNT(sv) == 0) { |
5055 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5056 | /* this SV's refcnt has been artificially decremented to |
5057 | * trigger cleanup */ | |
a0d0e21e | 5058 | return; |
3280af22 | 5059 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5060 | return; |
d689ffdd JP |
5061 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5062 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5063 | SvREFCNT(sv) = (~(U32)0)/2; | |
5064 | return; | |
5065 | } | |
0453d815 PM |
5066 | if (ckWARN_d(WARN_INTERNAL)) |
5067 | Perl_warner(aTHX_ WARN_INTERNAL, "Attempt to free unreferenced scalar"); | |
79072805 LW |
5068 | return; |
5069 | } | |
dce16143 MB |
5070 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
5071 | if (!refcount_is_zero) | |
8990e307 | 5072 | return; |
463ee0b2 LW |
5073 | #ifdef DEBUGGING |
5074 | if (SvTEMP(sv)) { | |
0453d815 | 5075 | if (ckWARN_d(WARN_DEBUGGING)) |
f248d071 | 5076 | Perl_warner(aTHX_ WARN_DEBUGGING, |
1d7c1841 GS |
5077 | "Attempt to free temp prematurely: SV 0x%"UVxf, |
5078 | PTR2UV(sv)); | |
79072805 | 5079 | return; |
79072805 | 5080 | } |
463ee0b2 | 5081 | #endif |
d689ffdd JP |
5082 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5083 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5084 | SvREFCNT(sv) = (~(U32)0)/2; | |
5085 | return; | |
5086 | } | |
79072805 | 5087 | sv_clear(sv); |
477f5d66 CS |
5088 | if (! SvREFCNT(sv)) |
5089 | del_SV(sv); | |
79072805 LW |
5090 | } |
5091 | ||
954c1994 GS |
5092 | /* |
5093 | =for apidoc sv_len | |
5094 | ||
645c22ef DM |
5095 | Returns the length of the string in the SV. Handles magic and type |
5096 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5097 | |
5098 | =cut | |
5099 | */ | |
5100 | ||
79072805 | 5101 | STRLEN |
864dbfa3 | 5102 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5103 | { |
748a9306 | 5104 | char *junk; |
463ee0b2 | 5105 | STRLEN len; |
79072805 LW |
5106 | |
5107 | if (!sv) | |
5108 | return 0; | |
5109 | ||
8990e307 | 5110 | if (SvGMAGICAL(sv)) |
565764a8 | 5111 | len = mg_length(sv); |
8990e307 | 5112 | else |
748a9306 | 5113 | junk = SvPV(sv, len); |
463ee0b2 | 5114 | return len; |
79072805 LW |
5115 | } |
5116 | ||
c461cf8f JH |
5117 | /* |
5118 | =for apidoc sv_len_utf8 | |
5119 | ||
5120 | Returns the number of characters in the string in an SV, counting wide | |
645c22ef | 5121 | UTF8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5122 | |
5123 | =cut | |
5124 | */ | |
5125 | ||
a0ed51b3 | 5126 | STRLEN |
864dbfa3 | 5127 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5128 | { |
a0ed51b3 LW |
5129 | if (!sv) |
5130 | return 0; | |
5131 | ||
a0ed51b3 | 5132 | if (SvGMAGICAL(sv)) |
b76347f2 | 5133 | return mg_length(sv); |
a0ed51b3 | 5134 | else |
b76347f2 JH |
5135 | { |
5136 | STRLEN len; | |
5137 | U8 *s = (U8*)SvPV(sv, len); | |
5138 | ||
d6efbbad | 5139 | return Perl_utf8_length(aTHX_ s, s + len); |
a0ed51b3 | 5140 | } |
a0ed51b3 LW |
5141 | } |
5142 | ||
645c22ef DM |
5143 | /* |
5144 | =for apidoc sv_pos_u2b | |
5145 | ||
5146 | Converts the value pointed to by offsetp from a count of UTF8 chars from | |
5147 | the start of the string, to a count of the equivalent number of bytes; if | |
5148 | lenp is non-zero, it does the same to lenp, but this time starting from | |
5149 | the offset, rather than from the start of the string. Handles magic and | |
5150 | type coercion. | |
5151 | ||
5152 | =cut | |
5153 | */ | |
5154 | ||
a0ed51b3 | 5155 | void |
864dbfa3 | 5156 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 5157 | { |
dfe13c55 GS |
5158 | U8 *start; |
5159 | U8 *s; | |
5160 | U8 *send; | |
a0ed51b3 LW |
5161 | I32 uoffset = *offsetp; |
5162 | STRLEN len; | |
5163 | ||
5164 | if (!sv) | |
5165 | return; | |
5166 | ||
dfe13c55 | 5167 | start = s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
5168 | send = s + len; |
5169 | while (s < send && uoffset--) | |
5170 | s += UTF8SKIP(s); | |
bb40f870 GA |
5171 | if (s >= send) |
5172 | s = send; | |
a0ed51b3 LW |
5173 | *offsetp = s - start; |
5174 | if (lenp) { | |
5175 | I32 ulen = *lenp; | |
5176 | start = s; | |
5177 | while (s < send && ulen--) | |
5178 | s += UTF8SKIP(s); | |
bb40f870 GA |
5179 | if (s >= send) |
5180 | s = send; | |
a0ed51b3 LW |
5181 | *lenp = s - start; |
5182 | } | |
5183 | return; | |
5184 | } | |
5185 | ||
645c22ef DM |
5186 | /* |
5187 | =for apidoc sv_pos_b2u | |
5188 | ||
5189 | Converts the value pointed to by offsetp from a count of bytes from the | |
5190 | start of the string, to a count of the equivalent number of UTF8 chars. | |
5191 | Handles magic and type coercion. | |
5192 | ||
5193 | =cut | |
5194 | */ | |
5195 | ||
a0ed51b3 | 5196 | void |
864dbfa3 | 5197 | Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp) |
a0ed51b3 | 5198 | { |
dfe13c55 GS |
5199 | U8 *s; |
5200 | U8 *send; | |
a0ed51b3 LW |
5201 | STRLEN len; |
5202 | ||
5203 | if (!sv) | |
5204 | return; | |
5205 | ||
dfe13c55 | 5206 | s = (U8*)SvPV(sv, len); |
a0ed51b3 | 5207 | if (len < *offsetp) |
a0dbb045 | 5208 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
a0ed51b3 LW |
5209 | send = s + *offsetp; |
5210 | len = 0; | |
5211 | while (s < send) { | |
a0dbb045 | 5212 | STRLEN n; |
2b9d42f0 NIS |
5213 | /* Call utf8n_to_uvchr() to validate the sequence */ |
5214 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
5215 | if (n > 0) { | |
a0dbb045 JH |
5216 | s += n; |
5217 | len++; | |
5218 | } | |
5219 | else | |
5220 | break; | |
a0ed51b3 LW |
5221 | } |
5222 | *offsetp = len; | |
5223 | return; | |
5224 | } | |
5225 | ||
954c1994 GS |
5226 | /* |
5227 | =for apidoc sv_eq | |
5228 | ||
5229 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
5230 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5231 | coerce its args to strings if necessary. | |
954c1994 GS |
5232 | |
5233 | =cut | |
5234 | */ | |
5235 | ||
79072805 | 5236 | I32 |
e01b9e88 | 5237 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 LW |
5238 | { |
5239 | char *pv1; | |
463ee0b2 | 5240 | STRLEN cur1; |
79072805 | 5241 | char *pv2; |
463ee0b2 | 5242 | STRLEN cur2; |
e01b9e88 | 5243 | I32 eq = 0; |
db42d148 | 5244 | char *tpv = Nullch; |
79072805 | 5245 | |
e01b9e88 | 5246 | if (!sv1) { |
79072805 LW |
5247 | pv1 = ""; |
5248 | cur1 = 0; | |
5249 | } | |
463ee0b2 | 5250 | else |
e01b9e88 | 5251 | pv1 = SvPV(sv1, cur1); |
79072805 | 5252 | |
e01b9e88 SC |
5253 | if (!sv2){ |
5254 | pv2 = ""; | |
5255 | cur2 = 0; | |
92d29cee | 5256 | } |
e01b9e88 SC |
5257 | else |
5258 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5259 | |
e01b9e88 | 5260 | /* do not utf8ize the comparands as a side-effect */ |
0064a8a9 | 5261 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
f9a63242 | 5262 | bool is_utf8 = TRUE; |
db42d148 | 5263 | /* UTF-8ness differs */ |
1aa99e6b IH |
5264 | if (PL_hints & HINT_UTF8_DISTINCT) |
5265 | return FALSE; | |
5266 | ||
e01b9e88 | 5267 | if (SvUTF8(sv1)) { |
db42d148 | 5268 | /* sv1 is the UTF-8 one , If is equal it must be downgrade-able */ |
f34ff0a8 | 5269 | char *pv = (char*)bytes_from_utf8((U8*)pv1, &cur1, &is_utf8); |
db42d148 NIS |
5270 | if (pv != pv1) |
5271 | pv1 = tpv = pv; | |
e01b9e88 SC |
5272 | } |
5273 | else { | |
db42d148 | 5274 | /* sv2 is the UTF-8 one , If is equal it must be downgrade-able */ |
f34ff0a8 | 5275 | char *pv = (char *)bytes_from_utf8((U8*)pv2, &cur2, &is_utf8); |
db42d148 NIS |
5276 | if (pv != pv2) |
5277 | pv2 = tpv = pv; | |
5278 | } | |
5279 | if (is_utf8) { | |
5280 | /* Downgrade not possible - cannot be eq */ | |
5281 | return FALSE; | |
e01b9e88 SC |
5282 | } |
5283 | } | |
79072805 | 5284 | |
e01b9e88 SC |
5285 | if (cur1 == cur2) |
5286 | eq = memEQ(pv1, pv2, cur1); | |
5287 | ||
db42d148 NIS |
5288 | if (tpv != Nullch) |
5289 | Safefree(tpv); | |
e01b9e88 SC |
5290 | |
5291 | return eq; | |
79072805 LW |
5292 | } |
5293 | ||
954c1994 GS |
5294 | /* |
5295 | =for apidoc sv_cmp | |
5296 | ||
5297 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
5298 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
5299 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5300 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
5301 | |
5302 | =cut | |
5303 | */ | |
5304 | ||
79072805 | 5305 | I32 |
e01b9e88 | 5306 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5307 | { |
560a288e GS |
5308 | STRLEN cur1, cur2; |
5309 | char *pv1, *pv2; | |
1c846c1f | 5310 | I32 cmp; |
e01b9e88 SC |
5311 | bool pv1tmp = FALSE; |
5312 | bool pv2tmp = FALSE; | |
560a288e | 5313 | |
e01b9e88 SC |
5314 | if (!sv1) { |
5315 | pv1 = ""; | |
560a288e GS |
5316 | cur1 = 0; |
5317 | } | |
e01b9e88 SC |
5318 | else |
5319 | pv1 = SvPV(sv1, cur1); | |
560a288e | 5320 | |
e01b9e88 SC |
5321 | if (!sv2){ |
5322 | pv2 = ""; | |
560a288e GS |
5323 | cur2 = 0; |
5324 | } | |
e01b9e88 SC |
5325 | else |
5326 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5327 | |
e01b9e88 | 5328 | /* do not utf8ize the comparands as a side-effect */ |
0064a8a9 | 5329 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
1aa99e6b IH |
5330 | if (PL_hints & HINT_UTF8_DISTINCT) |
5331 | return SvUTF8(sv1) ? 1 : -1; | |
5332 | ||
e01b9e88 SC |
5333 | if (SvUTF8(sv1)) { |
5334 | pv2 = (char*)bytes_to_utf8((U8*)pv2, &cur2); | |
5335 | pv2tmp = TRUE; | |
5336 | } | |
5337 | else { | |
5338 | pv1 = (char*)bytes_to_utf8((U8*)pv1, &cur1); | |
5339 | pv1tmp = TRUE; | |
5340 | } | |
5341 | } | |
79072805 | 5342 | |
e01b9e88 SC |
5343 | if (!cur1) { |
5344 | cmp = cur2 ? -1 : 0; | |
5345 | } else if (!cur2) { | |
5346 | cmp = 1; | |
5347 | } else { | |
5348 | I32 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); | |
5349 | ||
5350 | if (retval) { | |
5351 | cmp = retval < 0 ? -1 : 1; | |
5352 | } else if (cur1 == cur2) { | |
5353 | cmp = 0; | |
5354 | } else { | |
5355 | cmp = cur1 < cur2 ? -1 : 1; | |
5356 | } | |
5357 | } | |
16660edb | 5358 | |
e01b9e88 SC |
5359 | if (pv1tmp) |
5360 | Safefree(pv1); | |
5361 | if (pv2tmp) | |
5362 | Safefree(pv2); | |
16660edb | 5363 | |
e01b9e88 | 5364 | return cmp; |
bbce6d69 | 5365 | } |
16660edb | 5366 | |
c461cf8f JH |
5367 | /* |
5368 | =for apidoc sv_cmp_locale | |
5369 | ||
645c22ef DM |
5370 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
5371 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
5372 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
5373 | |
5374 | =cut | |
5375 | */ | |
5376 | ||
bbce6d69 | 5377 | I32 |
864dbfa3 | 5378 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 5379 | { |
36477c24 | 5380 | #ifdef USE_LOCALE_COLLATE |
16660edb | 5381 | |
bbce6d69 | 5382 | char *pv1, *pv2; |
5383 | STRLEN len1, len2; | |
5384 | I32 retval; | |
16660edb | 5385 | |
3280af22 | 5386 | if (PL_collation_standard) |
bbce6d69 | 5387 | goto raw_compare; |
16660edb | 5388 | |
bbce6d69 | 5389 | len1 = 0; |
8ac85365 | 5390 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 5391 | len2 = 0; |
8ac85365 | 5392 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 5393 | |
bbce6d69 | 5394 | if (!pv1 || !len1) { |
5395 | if (pv2 && len2) | |
5396 | return -1; | |
5397 | else | |
5398 | goto raw_compare; | |
5399 | } | |
5400 | else { | |
5401 | if (!pv2 || !len2) | |
5402 | return 1; | |
5403 | } | |
16660edb | 5404 | |
bbce6d69 | 5405 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 5406 | |
bbce6d69 | 5407 | if (retval) |
16660edb | 5408 | return retval < 0 ? -1 : 1; |
5409 | ||
bbce6d69 | 5410 | /* |
5411 | * When the result of collation is equality, that doesn't mean | |
5412 | * that there are no differences -- some locales exclude some | |
5413 | * characters from consideration. So to avoid false equalities, | |
5414 | * we use the raw string as a tiebreaker. | |
5415 | */ | |
16660edb | 5416 | |
bbce6d69 | 5417 | raw_compare: |
5418 | /* FALL THROUGH */ | |
16660edb | 5419 | |
36477c24 | 5420 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 5421 | |
bbce6d69 | 5422 | return sv_cmp(sv1, sv2); |
5423 | } | |
79072805 | 5424 | |
645c22ef | 5425 | |
36477c24 | 5426 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 5427 | |
7a4c00b4 | 5428 | /* |
645c22ef DM |
5429 | =for apidoc sv_collxfrm |
5430 | ||
5431 | Add Collate Transform magic to an SV if it doesn't already have it. | |
5432 | ||
5433 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
5434 | scalar data of the variable, but transformed to such a format that a normal | |
5435 | memory comparison can be used to compare the data according to the locale | |
5436 | settings. | |
5437 | ||
5438 | =cut | |
5439 | */ | |
5440 | ||
bbce6d69 | 5441 | char * |
864dbfa3 | 5442 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 5443 | { |
7a4c00b4 | 5444 | MAGIC *mg; |
16660edb | 5445 | |
14befaf4 | 5446 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 5447 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 5448 | char *s, *xf; |
5449 | STRLEN len, xlen; | |
5450 | ||
7a4c00b4 | 5451 | if (mg) |
5452 | Safefree(mg->mg_ptr); | |
bbce6d69 | 5453 | s = SvPV(sv, len); |
5454 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 5455 | if (SvREADONLY(sv)) { |
5456 | SAVEFREEPV(xf); | |
5457 | *nxp = xlen; | |
3280af22 | 5458 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 5459 | } |
7a4c00b4 | 5460 | if (! mg) { |
14befaf4 DM |
5461 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
5462 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 5463 | assert(mg); |
bbce6d69 | 5464 | } |
7a4c00b4 | 5465 | mg->mg_ptr = xf; |
565764a8 | 5466 | mg->mg_len = xlen; |
7a4c00b4 | 5467 | } |
5468 | else { | |
ff0cee69 | 5469 | if (mg) { |
5470 | mg->mg_ptr = NULL; | |
565764a8 | 5471 | mg->mg_len = -1; |
ff0cee69 | 5472 | } |
bbce6d69 | 5473 | } |
5474 | } | |
7a4c00b4 | 5475 | if (mg && mg->mg_ptr) { |
565764a8 | 5476 | *nxp = mg->mg_len; |
3280af22 | 5477 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 5478 | } |
5479 | else { | |
5480 | *nxp = 0; | |
5481 | return NULL; | |
16660edb | 5482 | } |
79072805 LW |
5483 | } |
5484 | ||
36477c24 | 5485 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 5486 | |
c461cf8f JH |
5487 | /* |
5488 | =for apidoc sv_gets | |
5489 | ||
5490 | Get a line from the filehandle and store it into the SV, optionally | |
5491 | appending to the currently-stored string. | |
5492 | ||
5493 | =cut | |
5494 | */ | |
5495 | ||
79072805 | 5496 | char * |
864dbfa3 | 5497 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 5498 | { |
c07a80fd | 5499 | char *rsptr; |
5500 | STRLEN rslen; | |
5501 | register STDCHAR rslast; | |
5502 | register STDCHAR *bp; | |
5503 | register I32 cnt; | |
9c5ffd7c | 5504 | I32 i = 0; |
c07a80fd | 5505 | |
2213622d | 5506 | SV_CHECK_THINKFIRST(sv); |
6fc92669 | 5507 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 5508 | |
ff68c719 | 5509 | SvSCREAM_off(sv); |
c07a80fd | 5510 | |
3280af22 | 5511 | if (RsSNARF(PL_rs)) { |
c07a80fd | 5512 | rsptr = NULL; |
5513 | rslen = 0; | |
5514 | } | |
3280af22 | 5515 | else if (RsRECORD(PL_rs)) { |
5b2b9c68 HM |
5516 | I32 recsize, bytesread; |
5517 | char *buffer; | |
5518 | ||
5519 | /* Grab the size of the record we're getting */ | |
3280af22 | 5520 | recsize = SvIV(SvRV(PL_rs)); |
5b2b9c68 | 5521 | (void)SvPOK_only(sv); /* Validate pointer */ |
e670df4e | 5522 | buffer = SvGROW(sv, recsize + 1); |
5b2b9c68 HM |
5523 | /* Go yank in */ |
5524 | #ifdef VMS | |
5525 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
5526 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
5527 | /* doing, but we've got no other real choice */ | |
5528 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); | |
5529 | #else | |
5530 | bytesread = PerlIO_read(fp, buffer, recsize); | |
5531 | #endif | |
5532 | SvCUR_set(sv, bytesread); | |
e670df4e | 5533 | buffer[bytesread] = '\0'; |
7d59b7e4 NIS |
5534 | if (PerlIO_isutf8(fp)) |
5535 | SvUTF8_on(sv); | |
5536 | else | |
5537 | SvUTF8_off(sv); | |
5b2b9c68 HM |
5538 | return(SvCUR(sv) ? SvPVX(sv) : Nullch); |
5539 | } | |
3280af22 | 5540 | else if (RsPARA(PL_rs)) { |
c07a80fd | 5541 | rsptr = "\n\n"; |
5542 | rslen = 2; | |
5543 | } | |
7d59b7e4 NIS |
5544 | else { |
5545 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
5546 | if (PerlIO_isutf8(fp)) { | |
5547 | rsptr = SvPVutf8(PL_rs, rslen); | |
5548 | } | |
5549 | else { | |
5550 | if (SvUTF8(PL_rs)) { | |
5551 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
5552 | Perl_croak(aTHX_ "Wide character in $/"); | |
5553 | } | |
5554 | } | |
5555 | rsptr = SvPV(PL_rs, rslen); | |
5556 | } | |
5557 | } | |
5558 | ||
c07a80fd | 5559 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
5560 | ||
3280af22 | 5561 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
79072805 | 5562 | do { /* to make sure file boundaries work right */ |
760ac839 | 5563 | if (PerlIO_eof(fp)) |
a0d0e21e | 5564 | return 0; |
760ac839 | 5565 | i = PerlIO_getc(fp); |
79072805 | 5566 | if (i != '\n') { |
a0d0e21e LW |
5567 | if (i == -1) |
5568 | return 0; | |
760ac839 | 5569 | PerlIO_ungetc(fp,i); |
79072805 LW |
5570 | break; |
5571 | } | |
5572 | } while (i != EOF); | |
5573 | } | |
c07a80fd | 5574 | |
760ac839 LW |
5575 | /* See if we know enough about I/O mechanism to cheat it ! */ |
5576 | ||
5577 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 5578 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
5579 | enough here - and may even be a macro allowing compile |
5580 | time optimization. | |
5581 | */ | |
5582 | ||
5583 | if (PerlIO_fast_gets(fp)) { | |
5584 | ||
5585 | /* | |
5586 | * We're going to steal some values from the stdio struct | |
5587 | * and put EVERYTHING in the innermost loop into registers. | |
5588 | */ | |
5589 | register STDCHAR *ptr; | |
5590 | STRLEN bpx; | |
5591 | I32 shortbuffered; | |
5592 | ||
16660edb | 5593 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
5594 | /* An ungetc()d char is handled separately from the regular | |
5595 | * buffer, so we getc() it back out and stuff it in the buffer. | |
5596 | */ | |
5597 | i = PerlIO_getc(fp); | |
5598 | if (i == EOF) return 0; | |
5599 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
5600 | (*fp)->_cnt++; | |
5601 | #endif | |
c07a80fd | 5602 | |
c2960299 | 5603 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 5604 | |
a20bf0c3 | 5605 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
a0d0e21e | 5606 | (void)SvPOK_only(sv); /* validate pointer */ |
79072805 LW |
5607 | if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ |
5608 | if (cnt > 80 && SvLEN(sv) > append) { | |
5609 | shortbuffered = cnt - SvLEN(sv) + append + 1; | |
5610 | cnt -= shortbuffered; | |
5611 | } | |
5612 | else { | |
5613 | shortbuffered = 0; | |
bbce6d69 | 5614 | /* remember that cnt can be negative */ |
5615 | SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1))); | |
79072805 LW |
5616 | } |
5617 | } | |
5618 | else | |
5619 | shortbuffered = 0; | |
c07a80fd | 5620 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 5621 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 5622 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5623 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 5624 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5625 | "Screamer: entering: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5626 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5627 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
5628 | for (;;) { |
5629 | screamer: | |
93a17b20 | 5630 | if (cnt > 0) { |
c07a80fd | 5631 | if (rslen) { |
760ac839 LW |
5632 | while (cnt > 0) { /* this | eat */ |
5633 | cnt--; | |
c07a80fd | 5634 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
5635 | goto thats_all_folks; /* screams | sed :-) */ | |
5636 | } | |
5637 | } | |
5638 | else { | |
1c846c1f NIS |
5639 | Copy(ptr, bp, cnt, char); /* this | eat */ |
5640 | bp += cnt; /* screams | dust */ | |
c07a80fd | 5641 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 5642 | cnt = 0; |
93a17b20 | 5643 | } |
79072805 LW |
5644 | } |
5645 | ||
748a9306 | 5646 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
5647 | cnt = shortbuffered; |
5648 | shortbuffered = 0; | |
c07a80fd | 5649 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5650 | SvCUR_set(sv, bpx); |
5651 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 5652 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
5653 | continue; |
5654 | } | |
5655 | ||
16660edb | 5656 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
5657 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
5658 | PTR2UV(ptr),(long)cnt)); | |
a20bf0c3 | 5659 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */ |
16660edb | 5660 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5661 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5662 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5663 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
1c846c1f | 5664 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 5665 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
5666 | another abstraction. */ | |
760ac839 | 5667 | i = PerlIO_getc(fp); /* get more characters */ |
16660edb | 5668 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5669 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5670 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5671 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
a20bf0c3 JH |
5672 | cnt = PerlIO_get_cnt(fp); |
5673 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 5674 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5675 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 5676 | |
748a9306 LW |
5677 | if (i == EOF) /* all done for ever? */ |
5678 | goto thats_really_all_folks; | |
5679 | ||
c07a80fd | 5680 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5681 | SvCUR_set(sv, bpx); |
5682 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 5683 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
5684 | ||
760ac839 | 5685 | *bp++ = i; /* store character from PerlIO_getc */ |
79072805 | 5686 | |
c07a80fd | 5687 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 5688 | goto thats_all_folks; |
79072805 LW |
5689 | } |
5690 | ||
5691 | thats_all_folks: | |
c07a80fd | 5692 | if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || |
36477c24 | 5693 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 5694 | goto screamer; /* go back to the fray */ |
79072805 LW |
5695 | thats_really_all_folks: |
5696 | if (shortbuffered) | |
5697 | cnt += shortbuffered; | |
16660edb | 5698 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5699 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
a20bf0c3 | 5700 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 5701 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5702 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5703 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5704 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 5705 | *bp = '\0'; |
760ac839 | 5706 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 5707 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 5708 | "Screamer: done, len=%ld, string=|%.*s|\n", |
5709 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
5710 | } |
5711 | else | |
79072805 | 5712 | { |
4d2c4e07 | 5713 | #ifndef EPOC |
760ac839 | 5714 | /*The big, slow, and stupid way */ |
c07a80fd | 5715 | STDCHAR buf[8192]; |
4d2c4e07 OF |
5716 | #else |
5717 | /* Need to work around EPOC SDK features */ | |
5718 | /* On WINS: MS VC5 generates calls to _chkstk, */ | |
5719 | /* if a `large' stack frame is allocated */ | |
5720 | /* gcc on MARM does not generate calls like these */ | |
5721 | STDCHAR buf[1024]; | |
5722 | #endif | |
79072805 | 5723 | |
760ac839 | 5724 | screamer2: |
c07a80fd | 5725 | if (rslen) { |
760ac839 LW |
5726 | register STDCHAR *bpe = buf + sizeof(buf); |
5727 | bp = buf; | |
5728 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe) | |
5729 | ; /* keep reading */ | |
5730 | cnt = bp - buf; | |
c07a80fd | 5731 | } |
5732 | else { | |
760ac839 | 5733 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 5734 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
5735 | * both args of ?: operator, causing EOF to change into 255 | |
5736 | */ | |
5737 | if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; } | |
c07a80fd | 5738 | } |
79072805 LW |
5739 | |
5740 | if (append) | |
760ac839 | 5741 | sv_catpvn(sv, (char *) buf, cnt); |
79072805 | 5742 | else |
760ac839 | 5743 | sv_setpvn(sv, (char *) buf, cnt); |
c07a80fd | 5744 | |
5745 | if (i != EOF && /* joy */ | |
5746 | (!rslen || | |
5747 | SvCUR(sv) < rslen || | |
36477c24 | 5748 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
5749 | { |
5750 | append = -1; | |
63e4d877 CS |
5751 | /* |
5752 | * If we're reading from a TTY and we get a short read, | |
5753 | * indicating that the user hit his EOF character, we need | |
5754 | * to notice it now, because if we try to read from the TTY | |
5755 | * again, the EOF condition will disappear. | |
5756 | * | |
5757 | * The comparison of cnt to sizeof(buf) is an optimization | |
5758 | * that prevents unnecessary calls to feof(). | |
5759 | * | |
5760 | * - jik 9/25/96 | |
5761 | */ | |
5762 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
5763 | goto screamer2; | |
79072805 LW |
5764 | } |
5765 | } | |
5766 | ||
1c846c1f | 5767 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
c07a80fd | 5768 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 5769 | i = PerlIO_getc(fp); |
79072805 | 5770 | if (i != '\n') { |
760ac839 | 5771 | PerlIO_ungetc(fp,i); |
79072805 LW |
5772 | break; |
5773 | } | |
5774 | } | |
5775 | } | |
c07a80fd | 5776 | |
7d59b7e4 NIS |
5777 | if (PerlIO_isutf8(fp)) |
5778 | SvUTF8_on(sv); | |
5779 | else | |
5780 | SvUTF8_off(sv); | |
5781 | ||
c07a80fd | 5782 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
5783 | } |
5784 | ||
954c1994 GS |
5785 | /* |
5786 | =for apidoc sv_inc | |
5787 | ||
645c22ef DM |
5788 | Auto-increment of the value in the SV, doing string to numeric conversion |
5789 | if necessary. Handles 'get' magic. | |
954c1994 GS |
5790 | |
5791 | =cut | |
5792 | */ | |
5793 | ||
79072805 | 5794 | void |
864dbfa3 | 5795 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
5796 | { |
5797 | register char *d; | |
463ee0b2 | 5798 | int flags; |
79072805 LW |
5799 | |
5800 | if (!sv) | |
5801 | return; | |
b23a5f78 GB |
5802 | if (SvGMAGICAL(sv)) |
5803 | mg_get(sv); | |
ed6116ce | 5804 | if (SvTHINKFIRST(sv)) { |
0f15f207 | 5805 | if (SvREADONLY(sv)) { |
3280af22 | 5806 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 5807 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 5808 | } |
a0d0e21e | 5809 | if (SvROK(sv)) { |
b5be31e9 | 5810 | IV i; |
9e7bc3e8 JD |
5811 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
5812 | return; | |
56431972 | 5813 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
5814 | sv_unref(sv); |
5815 | sv_setiv(sv, i); | |
a0d0e21e | 5816 | } |
ed6116ce | 5817 | } |
8990e307 | 5818 | flags = SvFLAGS(sv); |
28e5dec8 JH |
5819 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
5820 | /* It's (privately or publicly) a float, but not tested as an | |
5821 | integer, so test it to see. */ | |
d460ef45 | 5822 | (void) SvIV(sv); |
28e5dec8 JH |
5823 | flags = SvFLAGS(sv); |
5824 | } | |
5825 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
5826 | /* It's publicly an integer, or privately an integer-not-float */ | |
5827 | oops_its_int: | |
25da4f38 IZ |
5828 | if (SvIsUV(sv)) { |
5829 | if (SvUVX(sv) == UV_MAX) | |
65202027 | 5830 | sv_setnv(sv, (NV)UV_MAX + 1.0); |
25da4f38 IZ |
5831 | else |
5832 | (void)SvIOK_only_UV(sv); | |
5833 | ++SvUVX(sv); | |
5834 | } else { | |
5835 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 5836 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
5837 | else { |
5838 | (void)SvIOK_only(sv); | |
5839 | ++SvIVX(sv); | |
1c846c1f | 5840 | } |
55497cff | 5841 | } |
79072805 LW |
5842 | return; |
5843 | } | |
28e5dec8 JH |
5844 | if (flags & SVp_NOK) { |
5845 | (void)SvNOK_only(sv); | |
5846 | SvNVX(sv) += 1.0; | |
5847 | return; | |
5848 | } | |
5849 | ||
8990e307 | 5850 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
28e5dec8 JH |
5851 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
5852 | sv_upgrade(sv, SVt_IV); | |
5853 | (void)SvIOK_only(sv); | |
5854 | SvIVX(sv) = 1; | |
79072805 LW |
5855 | return; |
5856 | } | |
463ee0b2 | 5857 | d = SvPVX(sv); |
79072805 LW |
5858 | while (isALPHA(*d)) d++; |
5859 | while (isDIGIT(*d)) d++; | |
5860 | if (*d) { | |
28e5dec8 JH |
5861 | #ifdef PERL_PRESERVE_IVUV |
5862 | /* Got to punt this an an integer if needs be, but we don't issue | |
5863 | warnings. Probably ought to make the sv_iv_please() that does | |
5864 | the conversion if possible, and silently. */ | |
c2988b20 | 5865 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
5866 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
5867 | /* Need to try really hard to see if it's an integer. | |
5868 | 9.22337203685478e+18 is an integer. | |
5869 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
5870 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
5871 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
5872 | or we go insane. */ | |
d460ef45 | 5873 | |
28e5dec8 JH |
5874 | (void) sv_2iv(sv); |
5875 | if (SvIOK(sv)) | |
5876 | goto oops_its_int; | |
5877 | ||
5878 | /* sv_2iv *should* have made this an NV */ | |
5879 | if (flags & SVp_NOK) { | |
5880 | (void)SvNOK_only(sv); | |
5881 | SvNVX(sv) += 1.0; | |
5882 | return; | |
5883 | } | |
5884 | /* I don't think we can get here. Maybe I should assert this | |
5885 | And if we do get here I suspect that sv_setnv will croak. NWC | |
5886 | Fall through. */ | |
5887 | #if defined(USE_LONG_DOUBLE) | |
5888 | 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", | |
5889 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
5890 | #else | |
5891 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_inc punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%g\n", | |
5892 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
5893 | #endif | |
5894 | } | |
5895 | #endif /* PERL_PRESERVE_IVUV */ | |
5896 | sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); | |
79072805 LW |
5897 | return; |
5898 | } | |
5899 | d--; | |
463ee0b2 | 5900 | while (d >= SvPVX(sv)) { |
79072805 LW |
5901 | if (isDIGIT(*d)) { |
5902 | if (++*d <= '9') | |
5903 | return; | |
5904 | *(d--) = '0'; | |
5905 | } | |
5906 | else { | |
9d116dd7 JH |
5907 | #ifdef EBCDIC |
5908 | /* MKS: The original code here died if letters weren't consecutive. | |
5909 | * at least it didn't have to worry about non-C locales. The | |
5910 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 5911 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
5912 | * [A-Za-z] are accepted by isALPHA in the C locale. |
5913 | */ | |
5914 | if (*d != 'z' && *d != 'Z') { | |
5915 | do { ++*d; } while (!isALPHA(*d)); | |
5916 | return; | |
5917 | } | |
5918 | *(d--) -= 'z' - 'a'; | |
5919 | #else | |
79072805 LW |
5920 | ++*d; |
5921 | if (isALPHA(*d)) | |
5922 | return; | |
5923 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 5924 | #endif |
79072805 LW |
5925 | } |
5926 | } | |
5927 | /* oh,oh, the number grew */ | |
5928 | SvGROW(sv, SvCUR(sv) + 2); | |
5929 | SvCUR(sv)++; | |
463ee0b2 | 5930 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
5931 | *d = d[-1]; |
5932 | if (isDIGIT(d[1])) | |
5933 | *d = '1'; | |
5934 | else | |
5935 | *d = d[1]; | |
5936 | } | |
5937 | ||
954c1994 GS |
5938 | /* |
5939 | =for apidoc sv_dec | |
5940 | ||
645c22ef DM |
5941 | Auto-decrement of the value in the SV, doing string to numeric conversion |
5942 | if necessary. Handles 'get' magic. | |
954c1994 GS |
5943 | |
5944 | =cut | |
5945 | */ | |
5946 | ||
79072805 | 5947 | void |
864dbfa3 | 5948 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 5949 | { |
463ee0b2 LW |
5950 | int flags; |
5951 | ||
79072805 LW |
5952 | if (!sv) |
5953 | return; | |
b23a5f78 GB |
5954 | if (SvGMAGICAL(sv)) |
5955 | mg_get(sv); | |
ed6116ce | 5956 | if (SvTHINKFIRST(sv)) { |
0f15f207 | 5957 | if (SvREADONLY(sv)) { |
3280af22 | 5958 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 5959 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 5960 | } |
a0d0e21e | 5961 | if (SvROK(sv)) { |
b5be31e9 | 5962 | IV i; |
9e7bc3e8 JD |
5963 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
5964 | return; | |
56431972 | 5965 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
5966 | sv_unref(sv); |
5967 | sv_setiv(sv, i); | |
a0d0e21e | 5968 | } |
ed6116ce | 5969 | } |
28e5dec8 JH |
5970 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
5971 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 5972 | flags = SvFLAGS(sv); |
28e5dec8 JH |
5973 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
5974 | /* It's publicly an integer, or privately an integer-not-float */ | |
5975 | oops_its_int: | |
25da4f38 IZ |
5976 | if (SvIsUV(sv)) { |
5977 | if (SvUVX(sv) == 0) { | |
5978 | (void)SvIOK_only(sv); | |
5979 | SvIVX(sv) = -1; | |
5980 | } | |
5981 | else { | |
5982 | (void)SvIOK_only_UV(sv); | |
5983 | --SvUVX(sv); | |
1c846c1f | 5984 | } |
25da4f38 IZ |
5985 | } else { |
5986 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 5987 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
5988 | else { |
5989 | (void)SvIOK_only(sv); | |
5990 | --SvIVX(sv); | |
1c846c1f | 5991 | } |
55497cff | 5992 | } |
5993 | return; | |
5994 | } | |
28e5dec8 JH |
5995 | if (flags & SVp_NOK) { |
5996 | SvNVX(sv) -= 1.0; | |
5997 | (void)SvNOK_only(sv); | |
5998 | return; | |
5999 | } | |
8990e307 | 6000 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
6001 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
6002 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 6003 | SvNVX(sv) = -1.0; |
a0d0e21e | 6004 | (void)SvNOK_only(sv); |
79072805 LW |
6005 | return; |
6006 | } | |
28e5dec8 JH |
6007 | #ifdef PERL_PRESERVE_IVUV |
6008 | { | |
c2988b20 | 6009 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6010 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6011 | /* Need to try really hard to see if it's an integer. | |
6012 | 9.22337203685478e+18 is an integer. | |
6013 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6014 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
6015 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
6016 | or we go insane. */ | |
d460ef45 | 6017 | |
28e5dec8 JH |
6018 | (void) sv_2iv(sv); |
6019 | if (SvIOK(sv)) | |
6020 | goto oops_its_int; | |
6021 | ||
6022 | /* sv_2iv *should* have made this an NV */ | |
6023 | if (flags & SVp_NOK) { | |
6024 | (void)SvNOK_only(sv); | |
6025 | SvNVX(sv) -= 1.0; | |
6026 | return; | |
6027 | } | |
6028 | /* I don't think we can get here. Maybe I should assert this | |
6029 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6030 | Fall through. */ | |
6031 | #if defined(USE_LONG_DOUBLE) | |
6032 | 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", | |
6033 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6034 | #else | |
6035 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_dec punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%g\n", | |
6036 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6037 | #endif | |
6038 | } | |
6039 | } | |
6040 | #endif /* PERL_PRESERVE_IVUV */ | |
097ee67d | 6041 | sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
6042 | } |
6043 | ||
954c1994 GS |
6044 | /* |
6045 | =for apidoc sv_mortalcopy | |
6046 | ||
645c22ef DM |
6047 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
6048 | The new SV is marked as mortal. It will be destroyed when the current | |
6049 | context ends. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
6050 | |
6051 | =cut | |
6052 | */ | |
6053 | ||
79072805 LW |
6054 | /* Make a string that will exist for the duration of the expression |
6055 | * evaluation. Actually, it may have to last longer than that, but | |
6056 | * hopefully we won't free it until it has been assigned to a | |
6057 | * permanent location. */ | |
6058 | ||
6059 | SV * | |
864dbfa3 | 6060 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 6061 | { |
463ee0b2 | 6062 | register SV *sv; |
79072805 | 6063 | |
4561caa4 | 6064 | new_SV(sv); |
79072805 | 6065 | sv_setsv(sv,oldstr); |
677b06e3 GS |
6066 | EXTEND_MORTAL(1); |
6067 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
6068 | SvTEMP_on(sv); |
6069 | return sv; | |
6070 | } | |
6071 | ||
954c1994 GS |
6072 | /* |
6073 | =for apidoc sv_newmortal | |
6074 | ||
645c22ef DM |
6075 | Creates a new null SV which is mortal. The reference count of the SV is |
6076 | set to 1. It will be destroyed when the current context ends. See | |
6077 | also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
6078 | |
6079 | =cut | |
6080 | */ | |
6081 | ||
8990e307 | 6082 | SV * |
864dbfa3 | 6083 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
6084 | { |
6085 | register SV *sv; | |
6086 | ||
4561caa4 | 6087 | new_SV(sv); |
8990e307 | 6088 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
6089 | EXTEND_MORTAL(1); |
6090 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
6091 | return sv; |
6092 | } | |
6093 | ||
954c1994 GS |
6094 | /* |
6095 | =for apidoc sv_2mortal | |
6096 | ||
645c22ef DM |
6097 | Marks an existing SV as mortal. The SV will be destroyed when the current |
6098 | context ends. See also C<sv_newmortal> and C<sv_mortalcopy>. | |
954c1994 GS |
6099 | |
6100 | =cut | |
6101 | */ | |
6102 | ||
79072805 | 6103 | SV * |
864dbfa3 | 6104 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 LW |
6105 | { |
6106 | if (!sv) | |
6107 | return sv; | |
d689ffdd | 6108 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 6109 | return sv; |
677b06e3 GS |
6110 | EXTEND_MORTAL(1); |
6111 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 6112 | SvTEMP_on(sv); |
79072805 LW |
6113 | return sv; |
6114 | } | |
6115 | ||
954c1994 GS |
6116 | /* |
6117 | =for apidoc newSVpv | |
6118 | ||
6119 | Creates a new SV and copies a string into it. The reference count for the | |
6120 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
6121 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
6122 | ||
6123 | =cut | |
6124 | */ | |
6125 | ||
79072805 | 6126 | SV * |
864dbfa3 | 6127 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 6128 | { |
463ee0b2 | 6129 | register SV *sv; |
79072805 | 6130 | |
4561caa4 | 6131 | new_SV(sv); |
79072805 LW |
6132 | if (!len) |
6133 | len = strlen(s); | |
6134 | sv_setpvn(sv,s,len); | |
6135 | return sv; | |
6136 | } | |
6137 | ||
954c1994 GS |
6138 | /* |
6139 | =for apidoc newSVpvn | |
6140 | ||
6141 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 6142 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 GS |
6143 | string. You are responsible for ensuring that the source string is at least |
6144 | C<len> bytes long. | |
6145 | ||
6146 | =cut | |
6147 | */ | |
6148 | ||
9da1e3b5 | 6149 | SV * |
864dbfa3 | 6150 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
6151 | { |
6152 | register SV *sv; | |
6153 | ||
6154 | new_SV(sv); | |
9da1e3b5 MUN |
6155 | sv_setpvn(sv,s,len); |
6156 | return sv; | |
6157 | } | |
6158 | ||
1c846c1f NIS |
6159 | /* |
6160 | =for apidoc newSVpvn_share | |
6161 | ||
645c22ef DM |
6162 | Creates a new SV with its SvPVX pointing to a shared string in the string |
6163 | table. If the string does not already exist in the table, it is created | |
6164 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
6165 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
6166 | otherwise the hash is computed. The idea here is that as the string table | |
6167 | is used for shared hash keys these strings will have SvPVX == HeKEY and | |
6168 | hash lookup will avoid string compare. | |
1c846c1f NIS |
6169 | |
6170 | =cut | |
6171 | */ | |
6172 | ||
6173 | SV * | |
c3654f1a | 6174 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
6175 | { |
6176 | register SV *sv; | |
c3654f1a IH |
6177 | bool is_utf8 = FALSE; |
6178 | if (len < 0) { | |
6179 | len = -len; | |
6180 | is_utf8 = TRUE; | |
6181 | } | |
75a54232 JH |
6182 | if (is_utf8 && !(PL_hints & HINT_UTF8_DISTINCT)) { |
6183 | STRLEN tmplen = len; | |
6184 | /* See the note in hv.c:hv_fetch() --jhi */ | |
6185 | src = (char*)bytes_from_utf8((U8*)src, &tmplen, &is_utf8); | |
6186 | len = tmplen; | |
6187 | } | |
1c846c1f NIS |
6188 | if (!hash) |
6189 | PERL_HASH(hash, src, len); | |
6190 | new_SV(sv); | |
6191 | sv_upgrade(sv, SVt_PVIV); | |
c3654f1a | 6192 | SvPVX(sv) = sharepvn(src, is_utf8?-len:len, hash); |
1c846c1f NIS |
6193 | SvCUR(sv) = len; |
6194 | SvUVX(sv) = hash; | |
6195 | SvLEN(sv) = 0; | |
6196 | SvREADONLY_on(sv); | |
6197 | SvFAKE_on(sv); | |
6198 | SvPOK_on(sv); | |
c3654f1a IH |
6199 | if (is_utf8) |
6200 | SvUTF8_on(sv); | |
1c846c1f NIS |
6201 | return sv; |
6202 | } | |
6203 | ||
645c22ef | 6204 | |
cea2e8a9 | 6205 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
6206 | |
6207 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
6208 | * version of the main function, (which may itself be aliased to us). | |
6209 | * Don't access this version directly. | |
6210 | */ | |
6211 | ||
46fc3d4c | 6212 | SV * |
cea2e8a9 | 6213 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 6214 | { |
cea2e8a9 | 6215 | dTHX; |
46fc3d4c | 6216 | register SV *sv; |
6217 | va_list args; | |
46fc3d4c | 6218 | va_start(args, pat); |
c5be433b | 6219 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 6220 | va_end(args); |
6221 | return sv; | |
6222 | } | |
cea2e8a9 | 6223 | #endif |
46fc3d4c | 6224 | |
954c1994 GS |
6225 | /* |
6226 | =for apidoc newSVpvf | |
6227 | ||
645c22ef | 6228 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
6229 | C<sprintf>. |
6230 | ||
6231 | =cut | |
6232 | */ | |
6233 | ||
cea2e8a9 GS |
6234 | SV * |
6235 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
6236 | { | |
6237 | register SV *sv; | |
6238 | va_list args; | |
cea2e8a9 | 6239 | va_start(args, pat); |
c5be433b | 6240 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
6241 | va_end(args); |
6242 | return sv; | |
6243 | } | |
46fc3d4c | 6244 | |
645c22ef DM |
6245 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
6246 | ||
79072805 | 6247 | SV * |
c5be433b GS |
6248 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
6249 | { | |
6250 | register SV *sv; | |
6251 | new_SV(sv); | |
6252 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
6253 | return sv; | |
6254 | } | |
6255 | ||
954c1994 GS |
6256 | /* |
6257 | =for apidoc newSVnv | |
6258 | ||
6259 | Creates a new SV and copies a floating point value into it. | |
6260 | The reference count for the SV is set to 1. | |
6261 | ||
6262 | =cut | |
6263 | */ | |
6264 | ||
c5be433b | 6265 | SV * |
65202027 | 6266 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 6267 | { |
463ee0b2 | 6268 | register SV *sv; |
79072805 | 6269 | |
4561caa4 | 6270 | new_SV(sv); |
79072805 LW |
6271 | sv_setnv(sv,n); |
6272 | return sv; | |
6273 | } | |
6274 | ||
954c1994 GS |
6275 | /* |
6276 | =for apidoc newSViv | |
6277 | ||
6278 | Creates a new SV and copies an integer into it. The reference count for the | |
6279 | SV is set to 1. | |
6280 | ||
6281 | =cut | |
6282 | */ | |
6283 | ||
79072805 | 6284 | SV * |
864dbfa3 | 6285 | Perl_newSViv(pTHX_ IV i) |
79072805 | 6286 | { |
463ee0b2 | 6287 | register SV *sv; |
79072805 | 6288 | |
4561caa4 | 6289 | new_SV(sv); |
79072805 LW |
6290 | sv_setiv(sv,i); |
6291 | return sv; | |
6292 | } | |
6293 | ||
954c1994 | 6294 | /* |
1a3327fb JH |
6295 | =for apidoc newSVuv |
6296 | ||
6297 | Creates a new SV and copies an unsigned integer into it. | |
6298 | The reference count for the SV is set to 1. | |
6299 | ||
6300 | =cut | |
6301 | */ | |
6302 | ||
6303 | SV * | |
6304 | Perl_newSVuv(pTHX_ UV u) | |
6305 | { | |
6306 | register SV *sv; | |
6307 | ||
6308 | new_SV(sv); | |
6309 | sv_setuv(sv,u); | |
6310 | return sv; | |
6311 | } | |
6312 | ||
6313 | /* | |
954c1994 GS |
6314 | =for apidoc newRV_noinc |
6315 | ||
6316 | Creates an RV wrapper for an SV. The reference count for the original | |
6317 | SV is B<not> incremented. | |
6318 | ||
6319 | =cut | |
6320 | */ | |
6321 | ||
2304df62 | 6322 | SV * |
864dbfa3 | 6323 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
6324 | { |
6325 | register SV *sv; | |
6326 | ||
4561caa4 | 6327 | new_SV(sv); |
2304df62 | 6328 | sv_upgrade(sv, SVt_RV); |
76e3520e | 6329 | SvTEMP_off(tmpRef); |
d689ffdd | 6330 | SvRV(sv) = tmpRef; |
2304df62 | 6331 | SvROK_on(sv); |
2304df62 AD |
6332 | return sv; |
6333 | } | |
6334 | ||
645c22ef DM |
6335 | /* newRV_inc is the offical function name to use now. |
6336 | * newRV_inc is in fact #defined to newRV in sv.h | |
6337 | */ | |
6338 | ||
5f05dabc | 6339 | SV * |
864dbfa3 | 6340 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 6341 | { |
5f6447b6 | 6342 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 6343 | } |
5f05dabc | 6344 | |
954c1994 GS |
6345 | /* |
6346 | =for apidoc newSVsv | |
6347 | ||
6348 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 6349 | (Uses C<sv_setsv>). |
954c1994 GS |
6350 | |
6351 | =cut | |
6352 | */ | |
6353 | ||
79072805 | 6354 | SV * |
864dbfa3 | 6355 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 6356 | { |
463ee0b2 | 6357 | register SV *sv; |
79072805 LW |
6358 | |
6359 | if (!old) | |
6360 | return Nullsv; | |
8990e307 | 6361 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 PM |
6362 | if (ckWARN_d(WARN_INTERNAL)) |
6363 | Perl_warner(aTHX_ WARN_INTERNAL, "semi-panic: attempt to dup freed string"); | |
79072805 LW |
6364 | return Nullsv; |
6365 | } | |
4561caa4 | 6366 | new_SV(sv); |
ff68c719 | 6367 | if (SvTEMP(old)) { |
6368 | SvTEMP_off(old); | |
463ee0b2 | 6369 | sv_setsv(sv,old); |
ff68c719 | 6370 | SvTEMP_on(old); |
79072805 LW |
6371 | } |
6372 | else | |
463ee0b2 LW |
6373 | sv_setsv(sv,old); |
6374 | return sv; | |
79072805 LW |
6375 | } |
6376 | ||
645c22ef DM |
6377 | /* |
6378 | =for apidoc sv_reset | |
6379 | ||
6380 | Underlying implementation for the C<reset> Perl function. | |
6381 | Note that the perl-level function is vaguely deprecated. | |
6382 | ||
6383 | =cut | |
6384 | */ | |
6385 | ||
79072805 | 6386 | void |
864dbfa3 | 6387 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 LW |
6388 | { |
6389 | register HE *entry; | |
6390 | register GV *gv; | |
6391 | register SV *sv; | |
6392 | register I32 i; | |
6393 | register PMOP *pm; | |
6394 | register I32 max; | |
4802d5d7 | 6395 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 6396 | |
49d8d3a1 MB |
6397 | if (!stash) |
6398 | return; | |
6399 | ||
79072805 LW |
6400 | if (!*s) { /* reset ?? searches */ |
6401 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 6402 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
6403 | } |
6404 | return; | |
6405 | } | |
6406 | ||
6407 | /* reset variables */ | |
6408 | ||
6409 | if (!HvARRAY(stash)) | |
6410 | return; | |
463ee0b2 LW |
6411 | |
6412 | Zero(todo, 256, char); | |
79072805 | 6413 | while (*s) { |
4802d5d7 | 6414 | i = (unsigned char)*s; |
79072805 LW |
6415 | if (s[1] == '-') { |
6416 | s += 2; | |
6417 | } | |
4802d5d7 | 6418 | max = (unsigned char)*s++; |
79072805 | 6419 | for ( ; i <= max; i++) { |
463ee0b2 LW |
6420 | todo[i] = 1; |
6421 | } | |
a0d0e21e | 6422 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 6423 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
6424 | entry; |
6425 | entry = HeNEXT(entry)) | |
6426 | { | |
1edc1566 | 6427 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 6428 | continue; |
1edc1566 | 6429 | gv = (GV*)HeVAL(entry); |
79072805 | 6430 | sv = GvSV(gv); |
9e35f4b3 GS |
6431 | if (SvTHINKFIRST(sv)) { |
6432 | if (!SvREADONLY(sv) && SvROK(sv)) | |
6433 | sv_unref(sv); | |
6434 | continue; | |
6435 | } | |
a0d0e21e | 6436 | (void)SvOK_off(sv); |
79072805 LW |
6437 | if (SvTYPE(sv) >= SVt_PV) { |
6438 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
6439 | if (SvPVX(sv) != Nullch) |
6440 | *SvPVX(sv) = '\0'; | |
44a8e56a | 6441 | SvTAINT(sv); |
79072805 LW |
6442 | } |
6443 | if (GvAV(gv)) { | |
6444 | av_clear(GvAV(gv)); | |
6445 | } | |
44a8e56a | 6446 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 6447 | hv_clear(GvHV(gv)); |
fa6a1c44 | 6448 | #ifdef USE_ENVIRON_ARRAY |
3280af22 | 6449 | if (gv == PL_envgv) |
79072805 | 6450 | environ[0] = Nullch; |
a0d0e21e | 6451 | #endif |
79072805 LW |
6452 | } |
6453 | } | |
6454 | } | |
6455 | } | |
6456 | } | |
6457 | ||
645c22ef DM |
6458 | /* |
6459 | =for apidoc sv_2io | |
6460 | ||
6461 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
6462 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
6463 | named after the PV if we're a string. | |
6464 | ||
6465 | =cut | |
6466 | */ | |
6467 | ||
46fc3d4c | 6468 | IO* |
864dbfa3 | 6469 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 6470 | { |
6471 | IO* io; | |
6472 | GV* gv; | |
2d8e6c8d | 6473 | STRLEN n_a; |
46fc3d4c | 6474 | |
6475 | switch (SvTYPE(sv)) { | |
6476 | case SVt_PVIO: | |
6477 | io = (IO*)sv; | |
6478 | break; | |
6479 | case SVt_PVGV: | |
6480 | gv = (GV*)sv; | |
6481 | io = GvIO(gv); | |
6482 | if (!io) | |
cea2e8a9 | 6483 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 6484 | break; |
6485 | default: | |
6486 | if (!SvOK(sv)) | |
cea2e8a9 | 6487 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 6488 | if (SvROK(sv)) |
6489 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 6490 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 6491 | if (gv) |
6492 | io = GvIO(gv); | |
6493 | else | |
6494 | io = 0; | |
6495 | if (!io) | |
cea2e8a9 | 6496 | Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a)); |
46fc3d4c | 6497 | break; |
6498 | } | |
6499 | return io; | |
6500 | } | |
6501 | ||
645c22ef DM |
6502 | /* |
6503 | =for apidoc sv_2cv | |
6504 | ||
6505 | Using various gambits, try to get a CV from an SV; in addition, try if | |
6506 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
6507 | ||
6508 | =cut | |
6509 | */ | |
6510 | ||
79072805 | 6511 | CV * |
864dbfa3 | 6512 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 LW |
6513 | { |
6514 | GV *gv; | |
6515 | CV *cv; | |
2d8e6c8d | 6516 | STRLEN n_a; |
79072805 LW |
6517 | |
6518 | if (!sv) | |
93a17b20 | 6519 | return *gvp = Nullgv, Nullcv; |
79072805 | 6520 | switch (SvTYPE(sv)) { |
79072805 LW |
6521 | case SVt_PVCV: |
6522 | *st = CvSTASH(sv); | |
6523 | *gvp = Nullgv; | |
6524 | return (CV*)sv; | |
6525 | case SVt_PVHV: | |
6526 | case SVt_PVAV: | |
6527 | *gvp = Nullgv; | |
6528 | return Nullcv; | |
8990e307 LW |
6529 | case SVt_PVGV: |
6530 | gv = (GV*)sv; | |
a0d0e21e | 6531 | *gvp = gv; |
8990e307 LW |
6532 | *st = GvESTASH(gv); |
6533 | goto fix_gv; | |
6534 | ||
79072805 | 6535 | default: |
a0d0e21e LW |
6536 | if (SvGMAGICAL(sv)) |
6537 | mg_get(sv); | |
6538 | if (SvROK(sv)) { | |
f5284f61 IZ |
6539 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
6540 | tryAMAGICunDEREF(to_cv); | |
6541 | ||
62f274bf GS |
6542 | sv = SvRV(sv); |
6543 | if (SvTYPE(sv) == SVt_PVCV) { | |
6544 | cv = (CV*)sv; | |
6545 | *gvp = Nullgv; | |
6546 | *st = CvSTASH(cv); | |
6547 | return cv; | |
6548 | } | |
6549 | else if(isGV(sv)) | |
6550 | gv = (GV*)sv; | |
6551 | else | |
cea2e8a9 | 6552 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 6553 | } |
62f274bf | 6554 | else if (isGV(sv)) |
79072805 LW |
6555 | gv = (GV*)sv; |
6556 | else | |
2d8e6c8d | 6557 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
6558 | *gvp = gv; |
6559 | if (!gv) | |
6560 | return Nullcv; | |
6561 | *st = GvESTASH(gv); | |
8990e307 | 6562 | fix_gv: |
8ebc5c01 | 6563 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 6564 | SV *tmpsv; |
748a9306 | 6565 | ENTER; |
4633a7c4 | 6566 | tmpsv = NEWSV(704,0); |
16660edb | 6567 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
6568 | /* XXX this is probably not what they think they're getting. |
6569 | * It has the same effect as "sub name;", i.e. just a forward | |
6570 | * declaration! */ | |
774d564b | 6571 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
6572 | newSVOP(OP_CONST, 0, tmpsv), |
6573 | Nullop, | |
8990e307 | 6574 | Nullop); |
748a9306 | 6575 | LEAVE; |
8ebc5c01 | 6576 | if (!GvCVu(gv)) |
cea2e8a9 | 6577 | Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a)); |
8990e307 | 6578 | } |
8ebc5c01 | 6579 | return GvCVu(gv); |
79072805 LW |
6580 | } |
6581 | } | |
6582 | ||
c461cf8f JH |
6583 | /* |
6584 | =for apidoc sv_true | |
6585 | ||
6586 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
6587 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
6588 | instead use an in-line version. | |
c461cf8f JH |
6589 | |
6590 | =cut | |
6591 | */ | |
6592 | ||
79072805 | 6593 | I32 |
864dbfa3 | 6594 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 6595 | { |
8990e307 LW |
6596 | if (!sv) |
6597 | return 0; | |
79072805 | 6598 | if (SvPOK(sv)) { |
4e35701f NIS |
6599 | register XPV* tXpv; |
6600 | if ((tXpv = (XPV*)SvANY(sv)) && | |
c2f1de04 | 6601 | (tXpv->xpv_cur > 1 || |
4e35701f | 6602 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
6603 | return 1; |
6604 | else | |
6605 | return 0; | |
6606 | } | |
6607 | else { | |
6608 | if (SvIOK(sv)) | |
463ee0b2 | 6609 | return SvIVX(sv) != 0; |
79072805 LW |
6610 | else { |
6611 | if (SvNOK(sv)) | |
463ee0b2 | 6612 | return SvNVX(sv) != 0.0; |
79072805 | 6613 | else |
463ee0b2 | 6614 | return sv_2bool(sv); |
79072805 LW |
6615 | } |
6616 | } | |
6617 | } | |
79072805 | 6618 | |
645c22ef DM |
6619 | /* |
6620 | =for apidoc sv_iv | |
6621 | ||
6622 | A private implementation of the C<SvIVx> macro for compilers which can't | |
6623 | cope with complex macro expressions. Always use the macro instead. | |
6624 | ||
6625 | =cut | |
6626 | */ | |
6627 | ||
ff68c719 | 6628 | IV |
864dbfa3 | 6629 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 6630 | { |
25da4f38 IZ |
6631 | if (SvIOK(sv)) { |
6632 | if (SvIsUV(sv)) | |
6633 | return (IV)SvUVX(sv); | |
ff68c719 | 6634 | return SvIVX(sv); |
25da4f38 | 6635 | } |
ff68c719 | 6636 | return sv_2iv(sv); |
85e6fe83 | 6637 | } |
85e6fe83 | 6638 | |
645c22ef DM |
6639 | /* |
6640 | =for apidoc sv_uv | |
6641 | ||
6642 | A private implementation of the C<SvUVx> macro for compilers which can't | |
6643 | cope with complex macro expressions. Always use the macro instead. | |
6644 | ||
6645 | =cut | |
6646 | */ | |
6647 | ||
ff68c719 | 6648 | UV |
864dbfa3 | 6649 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 6650 | { |
25da4f38 IZ |
6651 | if (SvIOK(sv)) { |
6652 | if (SvIsUV(sv)) | |
6653 | return SvUVX(sv); | |
6654 | return (UV)SvIVX(sv); | |
6655 | } | |
ff68c719 | 6656 | return sv_2uv(sv); |
6657 | } | |
85e6fe83 | 6658 | |
645c22ef DM |
6659 | /* |
6660 | =for apidoc sv_nv | |
6661 | ||
6662 | A private implementation of the C<SvNVx> macro for compilers which can't | |
6663 | cope with complex macro expressions. Always use the macro instead. | |
6664 | ||
6665 | =cut | |
6666 | */ | |
6667 | ||
65202027 | 6668 | NV |
864dbfa3 | 6669 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 6670 | { |
ff68c719 | 6671 | if (SvNOK(sv)) |
6672 | return SvNVX(sv); | |
6673 | return sv_2nv(sv); | |
79072805 | 6674 | } |
79072805 | 6675 | |
645c22ef DM |
6676 | /* |
6677 | =for apidoc sv_pv | |
6678 | ||
6679 | A private implementation of the C<SvPV_nolen> macro for compilers which can't | |
6680 | cope with complex macro expressions. Always use the macro instead. | |
6681 | ||
6682 | =cut | |
6683 | */ | |
6684 | ||
79072805 | 6685 | char * |
864dbfa3 | 6686 | Perl_sv_pv(pTHX_ SV *sv) |
1fa8b10d JD |
6687 | { |
6688 | STRLEN n_a; | |
6689 | ||
6690 | if (SvPOK(sv)) | |
6691 | return SvPVX(sv); | |
6692 | ||
6693 | return sv_2pv(sv, &n_a); | |
6694 | } | |
6695 | ||
645c22ef DM |
6696 | /* |
6697 | =for apidoc sv_pvn | |
6698 | ||
6699 | A private implementation of the C<SvPV> macro for compilers which can't | |
6700 | cope with complex macro expressions. Always use the macro instead. | |
6701 | ||
6702 | =cut | |
6703 | */ | |
6704 | ||
1fa8b10d | 6705 | char * |
864dbfa3 | 6706 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 6707 | { |
85e6fe83 LW |
6708 | if (SvPOK(sv)) { |
6709 | *lp = SvCUR(sv); | |
a0d0e21e | 6710 | return SvPVX(sv); |
85e6fe83 | 6711 | } |
463ee0b2 | 6712 | return sv_2pv(sv, lp); |
79072805 | 6713 | } |
79072805 | 6714 | |
c461cf8f JH |
6715 | /* |
6716 | =for apidoc sv_pvn_force | |
6717 | ||
6718 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
6719 | A private implementation of the C<SvPV_force> macro for compilers which |
6720 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f JH |
6721 | |
6722 | =cut | |
6723 | */ | |
6724 | ||
a0d0e21e | 6725 | char * |
864dbfa3 | 6726 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) |
a0d0e21e | 6727 | { |
36f65ada | 6728 | return sv_pvn_force_flags(sv, lp, SV_GMAGIC); |
8d6d96c1 HS |
6729 | } |
6730 | ||
6731 | /* | |
6732 | =for apidoc sv_pvn_force_flags | |
6733 | ||
6734 | Get a sensible string out of the SV somehow. | |
6735 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
6736 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
6737 | implemented in terms of this function. | |
645c22ef DM |
6738 | You normally want to use the various wrapper macros instead: see |
6739 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
6740 | |
6741 | =cut | |
6742 | */ | |
6743 | ||
6744 | char * | |
6745 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
6746 | { | |
a0d0e21e LW |
6747 | char *s; |
6748 | ||
6fc92669 GS |
6749 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
6750 | sv_force_normal(sv); | |
1c846c1f | 6751 | |
a0d0e21e LW |
6752 | if (SvPOK(sv)) { |
6753 | *lp = SvCUR(sv); | |
6754 | } | |
6755 | else { | |
748a9306 | 6756 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
cea2e8a9 | 6757 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
6fc92669 | 6758 | PL_op_name[PL_op->op_type]); |
a0d0e21e | 6759 | } |
4633a7c4 | 6760 | else |
8d6d96c1 | 6761 | s = sv_2pv_flags(sv, lp, flags); |
a0d0e21e LW |
6762 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
6763 | STRLEN len = *lp; | |
1c846c1f | 6764 | |
a0d0e21e LW |
6765 | if (SvROK(sv)) |
6766 | sv_unref(sv); | |
6767 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
6768 | SvGROW(sv, len + 1); | |
6769 | Move(s,SvPVX(sv),len,char); | |
6770 | SvCUR_set(sv, len); | |
6771 | *SvEND(sv) = '\0'; | |
6772 | } | |
6773 | if (!SvPOK(sv)) { | |
6774 | SvPOK_on(sv); /* validate pointer */ | |
6775 | SvTAINT(sv); | |
1d7c1841 GS |
6776 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
6777 | PTR2UV(sv),SvPVX(sv))); | |
a0d0e21e LW |
6778 | } |
6779 | } | |
6780 | return SvPVX(sv); | |
6781 | } | |
6782 | ||
645c22ef DM |
6783 | /* |
6784 | =for apidoc sv_pvbyte | |
6785 | ||
6786 | A private implementation of the C<SvPVbyte_nolen> macro for compilers | |
6787 | which can't cope with complex macro expressions. Always use the macro | |
6788 | instead. | |
6789 | ||
6790 | =cut | |
6791 | */ | |
6792 | ||
a0d0e21e | 6793 | char * |
7340a771 GS |
6794 | Perl_sv_pvbyte(pTHX_ SV *sv) |
6795 | { | |
ffebcc3e | 6796 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6797 | return sv_pv(sv); |
6798 | } | |
6799 | ||
645c22ef DM |
6800 | /* |
6801 | =for apidoc sv_pvbyten | |
6802 | ||
6803 | A private implementation of the C<SvPVbyte> macro for compilers | |
6804 | which can't cope with complex macro expressions. Always use the macro | |
6805 | instead. | |
6806 | ||
6807 | =cut | |
6808 | */ | |
6809 | ||
7340a771 GS |
6810 | char * |
6811 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
6812 | { | |
ffebcc3e | 6813 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6814 | return sv_pvn(sv,lp); |
6815 | } | |
6816 | ||
645c22ef DM |
6817 | /* |
6818 | =for apidoc sv_pvbyten_force | |
6819 | ||
6820 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
6821 | which can't cope with complex macro expressions. Always use the macro | |
6822 | instead. | |
6823 | ||
6824 | =cut | |
6825 | */ | |
6826 | ||
7340a771 GS |
6827 | char * |
6828 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
6829 | { | |
ffebcc3e | 6830 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6831 | return sv_pvn_force(sv,lp); |
6832 | } | |
6833 | ||
645c22ef DM |
6834 | /* |
6835 | =for apidoc sv_pvutf8 | |
6836 | ||
6837 | A private implementation of the C<SvPVutf8_nolen> macro for compilers | |
6838 | which can't cope with complex macro expressions. Always use the macro | |
6839 | instead. | |
6840 | ||
6841 | =cut | |
6842 | */ | |
6843 | ||
7340a771 GS |
6844 | char * |
6845 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
6846 | { | |
560a288e | 6847 | sv_utf8_upgrade(sv); |
7340a771 GS |
6848 | return sv_pv(sv); |
6849 | } | |
6850 | ||
645c22ef DM |
6851 | /* |
6852 | =for apidoc sv_pvutf8n | |
6853 | ||
6854 | A private implementation of the C<SvPVutf8> macro for compilers | |
6855 | which can't cope with complex macro expressions. Always use the macro | |
6856 | instead. | |
6857 | ||
6858 | =cut | |
6859 | */ | |
6860 | ||
7340a771 GS |
6861 | char * |
6862 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
6863 | { | |
560a288e | 6864 | sv_utf8_upgrade(sv); |
7340a771 GS |
6865 | return sv_pvn(sv,lp); |
6866 | } | |
6867 | ||
c461cf8f JH |
6868 | /* |
6869 | =for apidoc sv_pvutf8n_force | |
6870 | ||
645c22ef DM |
6871 | A private implementation of the C<SvPVutf8_force> macro for compilers |
6872 | which can't cope with complex macro expressions. Always use the macro | |
6873 | instead. | |
c461cf8f JH |
6874 | |
6875 | =cut | |
6876 | */ | |
6877 | ||
7340a771 GS |
6878 | char * |
6879 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
6880 | { | |
560a288e | 6881 | sv_utf8_upgrade(sv); |
7340a771 GS |
6882 | return sv_pvn_force(sv,lp); |
6883 | } | |
6884 | ||
c461cf8f JH |
6885 | /* |
6886 | =for apidoc sv_reftype | |
6887 | ||
6888 | Returns a string describing what the SV is a reference to. | |
6889 | ||
6890 | =cut | |
6891 | */ | |
6892 | ||
7340a771 | 6893 | char * |
864dbfa3 | 6894 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e LW |
6895 | { |
6896 | if (ob && SvOBJECT(sv)) | |
6897 | return HvNAME(SvSTASH(sv)); | |
6898 | else { | |
6899 | switch (SvTYPE(sv)) { | |
6900 | case SVt_NULL: | |
6901 | case SVt_IV: | |
6902 | case SVt_NV: | |
6903 | case SVt_RV: | |
6904 | case SVt_PV: | |
6905 | case SVt_PVIV: | |
6906 | case SVt_PVNV: | |
6907 | case SVt_PVMG: | |
6908 | case SVt_PVBM: | |
6909 | if (SvROK(sv)) | |
6910 | return "REF"; | |
6911 | else | |
6912 | return "SCALAR"; | |
6913 | case SVt_PVLV: return "LVALUE"; | |
6914 | case SVt_PVAV: return "ARRAY"; | |
6915 | case SVt_PVHV: return "HASH"; | |
6916 | case SVt_PVCV: return "CODE"; | |
6917 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 6918 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 6919 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
6920 | default: return "UNKNOWN"; |
6921 | } | |
6922 | } | |
6923 | } | |
6924 | ||
954c1994 GS |
6925 | /* |
6926 | =for apidoc sv_isobject | |
6927 | ||
6928 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
6929 | object. If the SV is not an RV, or if the object is not blessed, then this | |
6930 | will return false. | |
6931 | ||
6932 | =cut | |
6933 | */ | |
6934 | ||
463ee0b2 | 6935 | int |
864dbfa3 | 6936 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 6937 | { |
68dc0745 | 6938 | if (!sv) |
6939 | return 0; | |
6940 | if (SvGMAGICAL(sv)) | |
6941 | mg_get(sv); | |
85e6fe83 LW |
6942 | if (!SvROK(sv)) |
6943 | return 0; | |
6944 | sv = (SV*)SvRV(sv); | |
6945 | if (!SvOBJECT(sv)) | |
6946 | return 0; | |
6947 | return 1; | |
6948 | } | |
6949 | ||
954c1994 GS |
6950 | /* |
6951 | =for apidoc sv_isa | |
6952 | ||
6953 | Returns a boolean indicating whether the SV is blessed into the specified | |
6954 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
6955 | an inheritance relationship. | |
6956 | ||
6957 | =cut | |
6958 | */ | |
6959 | ||
85e6fe83 | 6960 | int |
864dbfa3 | 6961 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 6962 | { |
68dc0745 | 6963 | if (!sv) |
6964 | return 0; | |
6965 | if (SvGMAGICAL(sv)) | |
6966 | mg_get(sv); | |
ed6116ce | 6967 | if (!SvROK(sv)) |
463ee0b2 | 6968 | return 0; |
ed6116ce LW |
6969 | sv = (SV*)SvRV(sv); |
6970 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
6971 | return 0; |
6972 | ||
6973 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
6974 | } | |
6975 | ||
954c1994 GS |
6976 | /* |
6977 | =for apidoc newSVrv | |
6978 | ||
6979 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
6980 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
6981 | be blessed in the specified package. The new SV is returned and its | |
6982 | reference count is 1. | |
6983 | ||
6984 | =cut | |
6985 | */ | |
6986 | ||
463ee0b2 | 6987 | SV* |
864dbfa3 | 6988 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 6989 | { |
463ee0b2 LW |
6990 | SV *sv; |
6991 | ||
4561caa4 | 6992 | new_SV(sv); |
51cf62d8 | 6993 | |
2213622d | 6994 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 | 6995 | SvAMAGIC_off(rv); |
51cf62d8 | 6996 | |
0199fce9 JD |
6997 | if (SvTYPE(rv) >= SVt_PVMG) { |
6998 | U32 refcnt = SvREFCNT(rv); | |
6999 | SvREFCNT(rv) = 0; | |
7000 | sv_clear(rv); | |
7001 | SvFLAGS(rv) = 0; | |
7002 | SvREFCNT(rv) = refcnt; | |
7003 | } | |
7004 | ||
51cf62d8 | 7005 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
7006 | sv_upgrade(rv, SVt_RV); |
7007 | else if (SvTYPE(rv) > SVt_RV) { | |
7008 | (void)SvOOK_off(rv); | |
7009 | if (SvPVX(rv) && SvLEN(rv)) | |
7010 | Safefree(SvPVX(rv)); | |
7011 | SvCUR_set(rv, 0); | |
7012 | SvLEN_set(rv, 0); | |
7013 | } | |
51cf62d8 OT |
7014 | |
7015 | (void)SvOK_off(rv); | |
053fc874 | 7016 | SvRV(rv) = sv; |
ed6116ce | 7017 | SvROK_on(rv); |
463ee0b2 | 7018 | |
a0d0e21e LW |
7019 | if (classname) { |
7020 | HV* stash = gv_stashpv(classname, TRUE); | |
7021 | (void)sv_bless(rv, stash); | |
7022 | } | |
7023 | return sv; | |
7024 | } | |
7025 | ||
954c1994 GS |
7026 | /* |
7027 | =for apidoc sv_setref_pv | |
7028 | ||
7029 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
7030 | argument will be upgraded to an RV. That RV will be modified to point to | |
7031 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
7032 | into the SV. The C<classname> argument indicates the package for the | |
7033 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7034 | will be returned and will have a reference count of 1. | |
7035 | ||
7036 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
7037 | objects will become corrupted by the pointer copy process. | |
7038 | ||
7039 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
7040 | ||
7041 | =cut | |
7042 | */ | |
7043 | ||
a0d0e21e | 7044 | SV* |
864dbfa3 | 7045 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 7046 | { |
189b2af5 | 7047 | if (!pv) { |
3280af22 | 7048 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
7049 | SvSETMAGIC(rv); |
7050 | } | |
a0d0e21e | 7051 | else |
56431972 | 7052 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
7053 | return rv; |
7054 | } | |
7055 | ||
954c1994 GS |
7056 | /* |
7057 | =for apidoc sv_setref_iv | |
7058 | ||
7059 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
7060 | argument will be upgraded to an RV. That RV will be modified to point to | |
7061 | the new SV. The C<classname> argument indicates the package for the | |
7062 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7063 | will be returned and will have a reference count of 1. | |
7064 | ||
7065 | =cut | |
7066 | */ | |
7067 | ||
a0d0e21e | 7068 | SV* |
864dbfa3 | 7069 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
7070 | { |
7071 | sv_setiv(newSVrv(rv,classname), iv); | |
7072 | return rv; | |
7073 | } | |
7074 | ||
954c1994 | 7075 | /* |
e1c57cef JH |
7076 | =for apidoc sv_setref_uv |
7077 | ||
7078 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
7079 | argument will be upgraded to an RV. That RV will be modified to point to | |
7080 | the new SV. The C<classname> argument indicates the package for the | |
7081 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7082 | will be returned and will have a reference count of 1. | |
7083 | ||
7084 | =cut | |
7085 | */ | |
7086 | ||
7087 | SV* | |
7088 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
7089 | { | |
7090 | sv_setuv(newSVrv(rv,classname), uv); | |
7091 | return rv; | |
7092 | } | |
7093 | ||
7094 | /* | |
954c1994 GS |
7095 | =for apidoc sv_setref_nv |
7096 | ||
7097 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
7098 | argument will be upgraded to an RV. That RV will be modified to point to | |
7099 | the new SV. The C<classname> argument indicates the package for the | |
7100 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7101 | will be returned and will have a reference count of 1. | |
7102 | ||
7103 | =cut | |
7104 | */ | |
7105 | ||
a0d0e21e | 7106 | SV* |
65202027 | 7107 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
7108 | { |
7109 | sv_setnv(newSVrv(rv,classname), nv); | |
7110 | return rv; | |
7111 | } | |
463ee0b2 | 7112 | |
954c1994 GS |
7113 | /* |
7114 | =for apidoc sv_setref_pvn | |
7115 | ||
7116 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
7117 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
7118 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
7119 | argument indicates the package for the blessing. Set C<classname> to | |
7120 | C<Nullch> to avoid the blessing. The new SV will be returned and will have | |
7121 | a reference count of 1. | |
7122 | ||
7123 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
7124 | ||
7125 | =cut | |
7126 | */ | |
7127 | ||
a0d0e21e | 7128 | SV* |
864dbfa3 | 7129 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
7130 | { |
7131 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
7132 | return rv; |
7133 | } | |
7134 | ||
954c1994 GS |
7135 | /* |
7136 | =for apidoc sv_bless | |
7137 | ||
7138 | Blesses an SV into a specified package. The SV must be an RV. The package | |
7139 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
7140 | of the SV is unaffected. | |
7141 | ||
7142 | =cut | |
7143 | */ | |
7144 | ||
a0d0e21e | 7145 | SV* |
864dbfa3 | 7146 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 7147 | { |
76e3520e | 7148 | SV *tmpRef; |
a0d0e21e | 7149 | if (!SvROK(sv)) |
cea2e8a9 | 7150 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
7151 | tmpRef = SvRV(sv); |
7152 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
7153 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 7154 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
7155 | if (SvOBJECT(tmpRef)) { |
7156 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7157 | --PL_sv_objcount; |
76e3520e | 7158 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 7159 | } |
a0d0e21e | 7160 | } |
76e3520e GS |
7161 | SvOBJECT_on(tmpRef); |
7162 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7163 | ++PL_sv_objcount; |
76e3520e GS |
7164 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
7165 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e | 7166 | |
2e3febc6 CS |
7167 | if (Gv_AMG(stash)) |
7168 | SvAMAGIC_on(sv); | |
7169 | else | |
7170 | SvAMAGIC_off(sv); | |
a0d0e21e LW |
7171 | |
7172 | return sv; | |
7173 | } | |
7174 | ||
645c22ef DM |
7175 | /* Downgrades a PVGV to a PVMG. |
7176 | * | |
7177 | * XXX This function doesn't actually appear to be used anywhere | |
7178 | * DAPM 15-Jun-01 | |
7179 | */ | |
7180 | ||
76e3520e | 7181 | STATIC void |
cea2e8a9 | 7182 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 7183 | { |
850fabdf GS |
7184 | void *xpvmg; |
7185 | ||
a0d0e21e LW |
7186 | assert(SvTYPE(sv) == SVt_PVGV); |
7187 | SvFAKE_off(sv); | |
7188 | if (GvGP(sv)) | |
1edc1566 | 7189 | gp_free((GV*)sv); |
e826b3c7 GS |
7190 | if (GvSTASH(sv)) { |
7191 | SvREFCNT_dec(GvSTASH(sv)); | |
7192 | GvSTASH(sv) = Nullhv; | |
7193 | } | |
14befaf4 | 7194 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 7195 | Safefree(GvNAME(sv)); |
a5f75d66 | 7196 | GvMULTI_off(sv); |
850fabdf GS |
7197 | |
7198 | /* need to keep SvANY(sv) in the right arena */ | |
7199 | xpvmg = new_XPVMG(); | |
7200 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
7201 | del_XPVGV(SvANY(sv)); | |
7202 | SvANY(sv) = xpvmg; | |
7203 | ||
a0d0e21e LW |
7204 | SvFLAGS(sv) &= ~SVTYPEMASK; |
7205 | SvFLAGS(sv) |= SVt_PVMG; | |
7206 | } | |
7207 | ||
954c1994 | 7208 | /* |
840a7b70 | 7209 | =for apidoc sv_unref_flags |
954c1994 GS |
7210 | |
7211 | Unsets the RV status of the SV, and decrements the reference count of | |
7212 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
7213 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
7214 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
7215 | (otherwise the decrementing is conditional on the reference count being | |
7216 | different from one or the reference being a readonly SV). | |
7889fe52 | 7217 | See C<SvROK_off>. |
954c1994 GS |
7218 | |
7219 | =cut | |
7220 | */ | |
7221 | ||
ed6116ce | 7222 | void |
840a7b70 | 7223 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 7224 | { |
a0d0e21e | 7225 | SV* rv = SvRV(sv); |
810b8aa5 GS |
7226 | |
7227 | if (SvWEAKREF(sv)) { | |
7228 | sv_del_backref(sv); | |
7229 | SvWEAKREF_off(sv); | |
7230 | SvRV(sv) = 0; | |
7231 | return; | |
7232 | } | |
ed6116ce LW |
7233 | SvRV(sv) = 0; |
7234 | SvROK_off(sv); | |
840a7b70 | 7235 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv) || flags) /* SV_IMMEDIATE_UNREF */ |
4633a7c4 | 7236 | SvREFCNT_dec(rv); |
840a7b70 | 7237 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 7238 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 7239 | } |
8990e307 | 7240 | |
840a7b70 IZ |
7241 | /* |
7242 | =for apidoc sv_unref | |
7243 | ||
7244 | Unsets the RV status of the SV, and decrements the reference count of | |
7245 | whatever was being referenced by the RV. This can almost be thought of | |
7246 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 7247 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
7248 | |
7249 | =cut | |
7250 | */ | |
7251 | ||
7252 | void | |
7253 | Perl_sv_unref(pTHX_ SV *sv) | |
7254 | { | |
7255 | sv_unref_flags(sv, 0); | |
7256 | } | |
7257 | ||
645c22ef DM |
7258 | /* |
7259 | =for apidoc sv_taint | |
7260 | ||
7261 | Taint an SV. Use C<SvTAINTED_on> instead. | |
7262 | =cut | |
7263 | */ | |
7264 | ||
bbce6d69 | 7265 | void |
864dbfa3 | 7266 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 7267 | { |
14befaf4 | 7268 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 7269 | } |
7270 | ||
645c22ef DM |
7271 | /* |
7272 | =for apidoc sv_untaint | |
7273 | ||
7274 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
7275 | =cut | |
7276 | */ | |
7277 | ||
bbce6d69 | 7278 | void |
864dbfa3 | 7279 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 7280 | { |
13f57bf8 | 7281 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7282 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 7283 | if (mg) |
565764a8 | 7284 | mg->mg_len &= ~1; |
36477c24 | 7285 | } |
bbce6d69 | 7286 | } |
7287 | ||
645c22ef DM |
7288 | /* |
7289 | =for apidoc sv_tainted | |
7290 | ||
7291 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
7292 | =cut | |
7293 | */ | |
7294 | ||
bbce6d69 | 7295 | bool |
864dbfa3 | 7296 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 7297 | { |
13f57bf8 | 7298 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7299 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 7300 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 7301 | return TRUE; |
7302 | } | |
7303 | return FALSE; | |
bbce6d69 | 7304 | } |
7305 | ||
954c1994 GS |
7306 | /* |
7307 | =for apidoc sv_setpviv | |
7308 | ||
7309 | Copies an integer into the given SV, also updating its string value. | |
7310 | Does not handle 'set' magic. See C<sv_setpviv_mg>. | |
7311 | ||
7312 | =cut | |
7313 | */ | |
7314 | ||
84902520 | 7315 | void |
864dbfa3 | 7316 | Perl_sv_setpviv(pTHX_ SV *sv, IV iv) |
84902520 | 7317 | { |
25da4f38 IZ |
7318 | char buf[TYPE_CHARS(UV)]; |
7319 | char *ebuf; | |
7320 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
84902520 | 7321 | |
25da4f38 | 7322 | sv_setpvn(sv, ptr, ebuf - ptr); |
84902520 TB |
7323 | } |
7324 | ||
954c1994 GS |
7325 | /* |
7326 | =for apidoc sv_setpviv_mg | |
7327 | ||
7328 | Like C<sv_setpviv>, but also handles 'set' magic. | |
7329 | ||
7330 | =cut | |
7331 | */ | |
7332 | ||
ef50df4b | 7333 | void |
864dbfa3 | 7334 | Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) |
ef50df4b | 7335 | { |
25da4f38 IZ |
7336 | char buf[TYPE_CHARS(UV)]; |
7337 | char *ebuf; | |
7338 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
7339 | ||
7340 | sv_setpvn(sv, ptr, ebuf - ptr); | |
ef50df4b GS |
7341 | SvSETMAGIC(sv); |
7342 | } | |
7343 | ||
cea2e8a9 | 7344 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7345 | |
7346 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7347 | * version of the main function, (which may itself be aliased to us). | |
7348 | * Don't access this version directly. | |
7349 | */ | |
7350 | ||
cea2e8a9 GS |
7351 | void |
7352 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
7353 | { | |
7354 | dTHX; | |
7355 | va_list args; | |
7356 | va_start(args, pat); | |
c5be433b | 7357 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
7358 | va_end(args); |
7359 | } | |
7360 | ||
645c22ef DM |
7361 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7362 | * version of the main function, (which may itself be aliased to us). | |
7363 | * Don't access this version directly. | |
7364 | */ | |
cea2e8a9 GS |
7365 | |
7366 | void | |
7367 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7368 | { | |
7369 | dTHX; | |
7370 | va_list args; | |
7371 | va_start(args, pat); | |
c5be433b | 7372 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 7373 | va_end(args); |
cea2e8a9 GS |
7374 | } |
7375 | #endif | |
7376 | ||
954c1994 GS |
7377 | /* |
7378 | =for apidoc sv_setpvf | |
7379 | ||
7380 | Processes its arguments like C<sprintf> and sets an SV to the formatted | |
7381 | output. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
7382 | ||
7383 | =cut | |
7384 | */ | |
7385 | ||
46fc3d4c | 7386 | void |
864dbfa3 | 7387 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7388 | { |
7389 | va_list args; | |
46fc3d4c | 7390 | va_start(args, pat); |
c5be433b | 7391 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 7392 | va_end(args); |
7393 | } | |
7394 | ||
645c22ef DM |
7395 | /* backend for C<sv_setpvf> and C<sv_setpvf_nocontext> */ |
7396 | ||
c5be433b GS |
7397 | void |
7398 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
7399 | { | |
7400 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7401 | } | |
ef50df4b | 7402 | |
954c1994 GS |
7403 | /* |
7404 | =for apidoc sv_setpvf_mg | |
7405 | ||
7406 | Like C<sv_setpvf>, but also handles 'set' magic. | |
7407 | ||
7408 | =cut | |
7409 | */ | |
7410 | ||
ef50df4b | 7411 | void |
864dbfa3 | 7412 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7413 | { |
7414 | va_list args; | |
ef50df4b | 7415 | va_start(args, pat); |
c5be433b | 7416 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 7417 | va_end(args); |
c5be433b GS |
7418 | } |
7419 | ||
645c22ef DM |
7420 | /* backend for C<sv_setpvf_mg> C<setpvf_mg_nocontext> */ |
7421 | ||
c5be433b GS |
7422 | void |
7423 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7424 | { | |
7425 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7426 | SvSETMAGIC(sv); |
7427 | } | |
7428 | ||
cea2e8a9 | 7429 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7430 | |
7431 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7432 | * version of the main function, (which may itself be aliased to us). | |
7433 | * Don't access this version directly. | |
7434 | */ | |
7435 | ||
cea2e8a9 GS |
7436 | void |
7437 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
7438 | { | |
7439 | dTHX; | |
7440 | va_list args; | |
7441 | va_start(args, pat); | |
c5be433b | 7442 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
7443 | va_end(args); |
7444 | } | |
7445 | ||
645c22ef DM |
7446 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7447 | * version of the main function, (which may itself be aliased to us). | |
7448 | * Don't access this version directly. | |
7449 | */ | |
7450 | ||
cea2e8a9 GS |
7451 | void |
7452 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7453 | { | |
7454 | dTHX; | |
7455 | va_list args; | |
7456 | va_start(args, pat); | |
c5be433b | 7457 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 7458 | va_end(args); |
cea2e8a9 GS |
7459 | } |
7460 | #endif | |
7461 | ||
954c1994 GS |
7462 | /* |
7463 | =for apidoc sv_catpvf | |
7464 | ||
d5ce4a7c GA |
7465 | Processes its arguments like C<sprintf> and appends the formatted |
7466 | output to an SV. If the appended data contains "wide" characters | |
7467 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
7468 | and characters >255 formatted with %c), the original SV might get | |
7469 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. | |
7470 | C<SvSETMAGIC()> must typically be called after calling this function | |
7471 | to handle 'set' magic. | |
954c1994 | 7472 | |
d5ce4a7c | 7473 | =cut */ |
954c1994 | 7474 | |
46fc3d4c | 7475 | void |
864dbfa3 | 7476 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7477 | { |
7478 | va_list args; | |
46fc3d4c | 7479 | va_start(args, pat); |
c5be433b | 7480 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 7481 | va_end(args); |
7482 | } | |
7483 | ||
645c22ef DM |
7484 | /* backend for C<sv_catpvf> and C<catpvf_mg_nocontext> */ |
7485 | ||
ef50df4b | 7486 | void |
c5be433b GS |
7487 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
7488 | { | |
7489 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7490 | } | |
7491 | ||
954c1994 GS |
7492 | /* |
7493 | =for apidoc sv_catpvf_mg | |
7494 | ||
7495 | Like C<sv_catpvf>, but also handles 'set' magic. | |
7496 | ||
7497 | =cut | |
7498 | */ | |
7499 | ||
c5be433b | 7500 | void |
864dbfa3 | 7501 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7502 | { |
7503 | va_list args; | |
ef50df4b | 7504 | va_start(args, pat); |
c5be433b | 7505 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 7506 | va_end(args); |
c5be433b GS |
7507 | } |
7508 | ||
645c22ef DM |
7509 | /* backend for C<catpvf_mg> and C<catpvf_mg_nocontext> */ |
7510 | ||
c5be433b GS |
7511 | void |
7512 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7513 | { | |
7514 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7515 | SvSETMAGIC(sv); |
7516 | } | |
7517 | ||
954c1994 GS |
7518 | /* |
7519 | =for apidoc sv_vsetpvfn | |
7520 | ||
7521 | Works like C<vcatpvfn> but copies the text into the SV instead of | |
7522 | appending it. | |
7523 | ||
645c22ef DM |
7524 | Usually used via one of its frontends C<sv_setpvf> and C<sv_setpvf_mg>. |
7525 | ||
954c1994 GS |
7526 | =cut |
7527 | */ | |
7528 | ||
46fc3d4c | 7529 | void |
7d5ea4e7 | 7530 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7531 | { |
7532 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 7533 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 7534 | } |
7535 | ||
645c22ef DM |
7536 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
7537 | ||
2d00ba3b | 7538 | STATIC I32 |
9dd79c3f | 7539 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
7540 | { |
7541 | I32 var = 0; | |
7542 | switch (**pattern) { | |
7543 | case '1': case '2': case '3': | |
7544 | case '4': case '5': case '6': | |
7545 | case '7': case '8': case '9': | |
7546 | while (isDIGIT(**pattern)) | |
7547 | var = var * 10 + (*(*pattern)++ - '0'); | |
7548 | } | |
7549 | return var; | |
7550 | } | |
9dd79c3f | 7551 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 7552 | |
954c1994 GS |
7553 | /* |
7554 | =for apidoc sv_vcatpvfn | |
7555 | ||
7556 | Processes its arguments like C<vsprintf> and appends the formatted output | |
7557 | to an SV. Uses an array of SVs if the C style variable argument list is | |
7558 | missing (NULL). When running with taint checks enabled, indicates via | |
7559 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
7560 | locales). | |
7561 | ||
645c22ef DM |
7562 | Usually used via one of its frontends C<sv_catpvf> and C<sv_catpvf_mg>. |
7563 | ||
954c1994 GS |
7564 | =cut |
7565 | */ | |
7566 | ||
46fc3d4c | 7567 | void |
7d5ea4e7 | 7568 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7569 | { |
7570 | char *p; | |
7571 | char *q; | |
7572 | char *patend; | |
fc36a67e | 7573 | STRLEN origlen; |
46fc3d4c | 7574 | I32 svix = 0; |
c635e13b | 7575 | static char nullstr[] = "(null)"; |
9c5ffd7c | 7576 | SV *argsv = Nullsv; |
46fc3d4c | 7577 | |
7578 | /* no matter what, this is a string now */ | |
fc36a67e | 7579 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 7580 | |
fc36a67e | 7581 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 7582 | if (patlen == 0) |
7583 | return; | |
fc36a67e | 7584 | if (patlen == 2 && pat[0] == '%') { |
7585 | switch (pat[1]) { | |
7586 | case 's': | |
c635e13b | 7587 | if (args) { |
7588 | char *s = va_arg(*args, char*); | |
7589 | sv_catpv(sv, s ? s : nullstr); | |
7590 | } | |
7e2040f0 | 7591 | else if (svix < svmax) { |
fc36a67e | 7592 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
7593 | if (DO_UTF8(*svargs)) |
7594 | SvUTF8_on(sv); | |
7595 | } | |
fc36a67e | 7596 | return; |
7597 | case '_': | |
7598 | if (args) { | |
7e2040f0 GS |
7599 | argsv = va_arg(*args, SV*); |
7600 | sv_catsv(sv, argsv); | |
7601 | if (DO_UTF8(argsv)) | |
7602 | SvUTF8_on(sv); | |
fc36a67e | 7603 | return; |
7604 | } | |
7605 | /* See comment on '_' below */ | |
7606 | break; | |
7607 | } | |
46fc3d4c | 7608 | } |
7609 | ||
7610 | patend = (char*)pat + patlen; | |
7611 | for (p = (char*)pat; p < patend; p = q) { | |
7612 | bool alt = FALSE; | |
7613 | bool left = FALSE; | |
b22c7a20 | 7614 | bool vectorize = FALSE; |
211dfcf1 | 7615 | bool vectorarg = FALSE; |
b2e23cf9 | 7616 | bool vec_utf = FALSE; |
46fc3d4c | 7617 | char fill = ' '; |
7618 | char plus = 0; | |
7619 | char intsize = 0; | |
7620 | STRLEN width = 0; | |
fc36a67e | 7621 | STRLEN zeros = 0; |
46fc3d4c | 7622 | bool has_precis = FALSE; |
7623 | STRLEN precis = 0; | |
7e2040f0 | 7624 | bool is_utf = FALSE; |
eb3fce90 | 7625 | |
46fc3d4c | 7626 | char esignbuf[4]; |
ad391ad9 | 7627 | U8 utf8buf[UTF8_MAXLEN+1]; |
46fc3d4c | 7628 | STRLEN esignlen = 0; |
7629 | ||
7630 | char *eptr = Nullch; | |
fc36a67e | 7631 | STRLEN elen = 0; |
089c015b JH |
7632 | /* Times 4: a decimal digit takes more than 3 binary digits. |
7633 | * NV_DIG: mantissa takes than many decimal digits. | |
7634 | * Plus 32: Playing safe. */ | |
7635 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
2d4389e4 JH |
7636 | /* large enough for "%#.#f" --chip */ |
7637 | /* what about long double NVs? --jhi */ | |
b22c7a20 GS |
7638 | |
7639 | SV *vecsv; | |
a05b299f | 7640 | U8 *vecstr = Null(U8*); |
b22c7a20 | 7641 | STRLEN veclen = 0; |
46fc3d4c | 7642 | char c; |
7643 | int i; | |
9c5ffd7c | 7644 | unsigned base = 0; |
46fc3d4c | 7645 | IV iv; |
7646 | UV uv; | |
65202027 | 7647 | NV nv; |
46fc3d4c | 7648 | STRLEN have; |
7649 | STRLEN need; | |
7650 | STRLEN gap; | |
b22c7a20 GS |
7651 | char *dotstr = "."; |
7652 | STRLEN dotstrlen = 1; | |
211dfcf1 | 7653 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 7654 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
7655 | I32 epix = 0; /* explicit precision index */ |
7656 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 7657 | bool asterisk = FALSE; |
46fc3d4c | 7658 | |
211dfcf1 | 7659 | /* echo everything up to the next format specification */ |
46fc3d4c | 7660 | for (q = p; q < patend && *q != '%'; ++q) ; |
7661 | if (q > p) { | |
7662 | sv_catpvn(sv, p, q - p); | |
7663 | p = q; | |
7664 | } | |
7665 | if (q++ >= patend) | |
7666 | break; | |
7667 | ||
211dfcf1 HS |
7668 | /* |
7669 | We allow format specification elements in this order: | |
7670 | \d+\$ explicit format parameter index | |
7671 | [-+ 0#]+ flags | |
7672 | \*?(\d+\$)?v vector with optional (optionally specified) arg | |
7673 | \d+|\*(\d+\$)? width using optional (optionally specified) arg | |
7674 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
7675 | [hlqLV] size | |
7676 | [%bcdefginopsux_DFOUX] format (mandatory) | |
7677 | */ | |
7678 | if (EXPECT_NUMBER(q, width)) { | |
7679 | if (*q == '$') { | |
7680 | ++q; | |
7681 | efix = width; | |
7682 | } else { | |
7683 | goto gotwidth; | |
7684 | } | |
7685 | } | |
7686 | ||
fc36a67e | 7687 | /* FLAGS */ |
7688 | ||
46fc3d4c | 7689 | while (*q) { |
7690 | switch (*q) { | |
7691 | case ' ': | |
7692 | case '+': | |
7693 | plus = *q++; | |
7694 | continue; | |
7695 | ||
7696 | case '-': | |
7697 | left = TRUE; | |
7698 | q++; | |
7699 | continue; | |
7700 | ||
7701 | case '0': | |
7702 | fill = *q++; | |
7703 | continue; | |
7704 | ||
7705 | case '#': | |
7706 | alt = TRUE; | |
7707 | q++; | |
7708 | continue; | |
7709 | ||
fc36a67e | 7710 | default: |
7711 | break; | |
7712 | } | |
7713 | break; | |
7714 | } | |
46fc3d4c | 7715 | |
211dfcf1 | 7716 | tryasterisk: |
eb3fce90 | 7717 | if (*q == '*') { |
211dfcf1 HS |
7718 | q++; |
7719 | if (EXPECT_NUMBER(q, ewix)) | |
7720 | if (*q++ != '$') | |
7721 | goto unknown; | |
eb3fce90 | 7722 | asterisk = TRUE; |
211dfcf1 HS |
7723 | } |
7724 | if (*q == 'v') { | |
eb3fce90 | 7725 | q++; |
211dfcf1 HS |
7726 | if (vectorize) |
7727 | goto unknown; | |
9cbac4c7 | 7728 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
7729 | evix = ewix; |
7730 | ewix = 0; | |
7731 | asterisk = FALSE; | |
7732 | } | |
7733 | vectorize = TRUE; | |
7734 | goto tryasterisk; | |
eb3fce90 JH |
7735 | } |
7736 | ||
211dfcf1 HS |
7737 | if (!asterisk) |
7738 | EXPECT_NUMBER(q, width); | |
7739 | ||
7740 | if (vectorize) { | |
7741 | if (vectorarg) { | |
7742 | if (args) | |
7743 | vecsv = va_arg(*args, SV*); | |
7744 | else | |
7745 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
7746 | svargs[ewix ? ewix-1 : svix++] : &PL_sv_undef; | |
4459522c | 7747 | dotstr = SvPVx(vecsv, dotstrlen); |
211dfcf1 HS |
7748 | if (DO_UTF8(vecsv)) |
7749 | is_utf = TRUE; | |
7750 | } | |
7751 | if (args) { | |
7752 | vecsv = va_arg(*args, SV*); | |
7753 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
b2e23cf9 | 7754 | vec_utf = DO_UTF8(vecsv); |
eb3fce90 | 7755 | } |
211dfcf1 HS |
7756 | else if (efix ? efix <= svmax : svix < svmax) { |
7757 | vecsv = svargs[efix ? efix-1 : svix++]; | |
7758 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
b2e23cf9 | 7759 | vec_utf = DO_UTF8(vecsv); |
211dfcf1 HS |
7760 | } |
7761 | else { | |
7762 | vecstr = (U8*)""; | |
7763 | veclen = 0; | |
7764 | } | |
eb3fce90 | 7765 | } |
fc36a67e | 7766 | |
eb3fce90 | 7767 | if (asterisk) { |
fc36a67e | 7768 | if (args) |
7769 | i = va_arg(*args, int); | |
7770 | else | |
eb3fce90 JH |
7771 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
7772 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7773 | left |= (i < 0); |
7774 | width = (i < 0) ? -i : i; | |
fc36a67e | 7775 | } |
211dfcf1 | 7776 | gotwidth: |
fc36a67e | 7777 | |
7778 | /* PRECISION */ | |
46fc3d4c | 7779 | |
fc36a67e | 7780 | if (*q == '.') { |
7781 | q++; | |
7782 | if (*q == '*') { | |
211dfcf1 HS |
7783 | q++; |
7784 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') | |
7785 | goto unknown; | |
46fc3d4c | 7786 | if (args) |
7787 | i = va_arg(*args, int); | |
7788 | else | |
eb3fce90 JH |
7789 | i = (ewix ? ewix <= svmax : svix < svmax) |
7790 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7791 | precis = (i < 0) ? 0 : i; |
fc36a67e | 7792 | } |
7793 | else { | |
7794 | precis = 0; | |
7795 | while (isDIGIT(*q)) | |
7796 | precis = precis * 10 + (*q++ - '0'); | |
7797 | } | |
7798 | has_precis = TRUE; | |
7799 | } | |
46fc3d4c | 7800 | |
fc36a67e | 7801 | /* SIZE */ |
46fc3d4c | 7802 | |
fc36a67e | 7803 | switch (*q) { |
e5c81feb | 7804 | #if defined(HAS_QUAD) || (defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)) |
6f9bb7fd | 7805 | case 'L': /* Ld */ |
e5c81feb JH |
7806 | /* FALL THROUGH */ |
7807 | #endif | |
7808 | #ifdef HAS_QUAD | |
6f9bb7fd GS |
7809 | case 'q': /* qd */ |
7810 | intsize = 'q'; | |
7811 | q++; | |
7812 | break; | |
7813 | #endif | |
fc36a67e | 7814 | case 'l': |
e5c81feb JH |
7815 | #if defined(HAS_QUAD) || (defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)) |
7816 | if (*(q + 1) == 'l') { /* lld, llf */ | |
fc36a67e | 7817 | intsize = 'q'; |
7818 | q += 2; | |
46fc3d4c | 7819 | break; |
cf2093f6 | 7820 | } |
fc36a67e | 7821 | #endif |
6f9bb7fd | 7822 | /* FALL THROUGH */ |
fc36a67e | 7823 | case 'h': |
cf2093f6 | 7824 | /* FALL THROUGH */ |
fc36a67e | 7825 | case 'V': |
7826 | intsize = *q++; | |
46fc3d4c | 7827 | break; |
7828 | } | |
7829 | ||
fc36a67e | 7830 | /* CONVERSION */ |
7831 | ||
211dfcf1 HS |
7832 | if (*q == '%') { |
7833 | eptr = q++; | |
7834 | elen = 1; | |
7835 | goto string; | |
7836 | } | |
7837 | ||
7838 | if (!args) | |
7839 | argsv = (efix ? efix <= svmax : svix < svmax) ? | |
7840 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
7841 | ||
46fc3d4c | 7842 | switch (c = *q++) { |
7843 | ||
7844 | /* STRINGS */ | |
7845 | ||
46fc3d4c | 7846 | case 'c': |
211dfcf1 | 7847 | uv = args ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
7848 | if ((uv > 255 || |
7849 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 7850 | && !IN_BYTES) { |
dfe13c55 | 7851 | eptr = (char*)utf8buf; |
9041c2e3 | 7852 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
7e2040f0 GS |
7853 | is_utf = TRUE; |
7854 | } | |
7855 | else { | |
7856 | c = (char)uv; | |
7857 | eptr = &c; | |
7858 | elen = 1; | |
a0ed51b3 | 7859 | } |
46fc3d4c | 7860 | goto string; |
7861 | ||
46fc3d4c | 7862 | case 's': |
7863 | if (args) { | |
fc36a67e | 7864 | eptr = va_arg(*args, char*); |
c635e13b | 7865 | if (eptr) |
1d7c1841 GS |
7866 | #ifdef MACOS_TRADITIONAL |
7867 | /* On MacOS, %#s format is used for Pascal strings */ | |
7868 | if (alt) | |
7869 | elen = *eptr++; | |
7870 | else | |
7871 | #endif | |
c635e13b | 7872 | elen = strlen(eptr); |
7873 | else { | |
7874 | eptr = nullstr; | |
7875 | elen = sizeof nullstr - 1; | |
7876 | } | |
46fc3d4c | 7877 | } |
211dfcf1 | 7878 | else { |
7e2040f0 GS |
7879 | eptr = SvPVx(argsv, elen); |
7880 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
7881 | if (has_precis && precis < elen) { |
7882 | I32 p = precis; | |
7e2040f0 | 7883 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
7884 | precis = p; |
7885 | } | |
7886 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 7887 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 7888 | } |
7e2040f0 | 7889 | is_utf = TRUE; |
a0ed51b3 LW |
7890 | } |
7891 | } | |
46fc3d4c | 7892 | goto string; |
7893 | ||
fc36a67e | 7894 | case '_': |
7895 | /* | |
7896 | * The "%_" hack might have to be changed someday, | |
7897 | * if ISO or ANSI decide to use '_' for something. | |
7898 | * So we keep it hidden from users' code. | |
7899 | */ | |
7900 | if (!args) | |
7901 | goto unknown; | |
211dfcf1 | 7902 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
7903 | eptr = SvPVx(argsv, elen); |
7904 | if (DO_UTF8(argsv)) | |
7905 | is_utf = TRUE; | |
fc36a67e | 7906 | |
46fc3d4c | 7907 | string: |
b22c7a20 | 7908 | vectorize = FALSE; |
46fc3d4c | 7909 | if (has_precis && elen > precis) |
7910 | elen = precis; | |
7911 | break; | |
7912 | ||
7913 | /* INTEGERS */ | |
7914 | ||
fc36a67e | 7915 | case 'p': |
c2e66d9e GS |
7916 | if (alt) |
7917 | goto unknown; | |
211dfcf1 | 7918 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 7919 | base = 16; |
7920 | goto integer; | |
7921 | ||
46fc3d4c | 7922 | case 'D': |
29fe7a80 | 7923 | #ifdef IV_IS_QUAD |
22f3ae8c | 7924 | intsize = 'q'; |
29fe7a80 | 7925 | #else |
46fc3d4c | 7926 | intsize = 'l'; |
29fe7a80 | 7927 | #endif |
46fc3d4c | 7928 | /* FALL THROUGH */ |
7929 | case 'd': | |
7930 | case 'i': | |
b22c7a20 | 7931 | if (vectorize) { |
ba210ebe | 7932 | STRLEN ulen; |
211dfcf1 HS |
7933 | if (!veclen) |
7934 | continue; | |
b2e23cf9 | 7935 | if (vec_utf) |
9041c2e3 | 7936 | iv = (IV)utf8n_to_uvchr(vecstr, veclen, &ulen, 0); |
b22c7a20 | 7937 | else { |
a05b299f | 7938 | iv = *vecstr; |
b22c7a20 GS |
7939 | ulen = 1; |
7940 | } | |
7941 | vecstr += ulen; | |
7942 | veclen -= ulen; | |
7943 | } | |
7944 | else if (args) { | |
46fc3d4c | 7945 | switch (intsize) { |
7946 | case 'h': iv = (short)va_arg(*args, int); break; | |
7947 | default: iv = va_arg(*args, int); break; | |
7948 | case 'l': iv = va_arg(*args, long); break; | |
fc36a67e | 7949 | case 'V': iv = va_arg(*args, IV); break; |
cf2093f6 JH |
7950 | #ifdef HAS_QUAD |
7951 | case 'q': iv = va_arg(*args, Quad_t); break; | |
7952 | #endif | |
46fc3d4c | 7953 | } |
7954 | } | |
7955 | else { | |
211dfcf1 | 7956 | iv = SvIVx(argsv); |
46fc3d4c | 7957 | switch (intsize) { |
7958 | case 'h': iv = (short)iv; break; | |
be28567c | 7959 | default: break; |
46fc3d4c | 7960 | case 'l': iv = (long)iv; break; |
fc36a67e | 7961 | case 'V': break; |
cf2093f6 JH |
7962 | #ifdef HAS_QUAD |
7963 | case 'q': iv = (Quad_t)iv; break; | |
7964 | #endif | |
46fc3d4c | 7965 | } |
7966 | } | |
7967 | if (iv >= 0) { | |
7968 | uv = iv; | |
7969 | if (plus) | |
7970 | esignbuf[esignlen++] = plus; | |
7971 | } | |
7972 | else { | |
7973 | uv = -iv; | |
7974 | esignbuf[esignlen++] = '-'; | |
7975 | } | |
7976 | base = 10; | |
7977 | goto integer; | |
7978 | ||
fc36a67e | 7979 | case 'U': |
29fe7a80 | 7980 | #ifdef IV_IS_QUAD |
22f3ae8c | 7981 | intsize = 'q'; |
29fe7a80 | 7982 | #else |
fc36a67e | 7983 | intsize = 'l'; |
29fe7a80 | 7984 | #endif |
fc36a67e | 7985 | /* FALL THROUGH */ |
7986 | case 'u': | |
7987 | base = 10; | |
7988 | goto uns_integer; | |
7989 | ||
4f19785b WSI |
7990 | case 'b': |
7991 | base = 2; | |
7992 | goto uns_integer; | |
7993 | ||
46fc3d4c | 7994 | case 'O': |
29fe7a80 | 7995 | #ifdef IV_IS_QUAD |
22f3ae8c | 7996 | intsize = 'q'; |
29fe7a80 | 7997 | #else |
46fc3d4c | 7998 | intsize = 'l'; |
29fe7a80 | 7999 | #endif |
46fc3d4c | 8000 | /* FALL THROUGH */ |
8001 | case 'o': | |
8002 | base = 8; | |
8003 | goto uns_integer; | |
8004 | ||
8005 | case 'X': | |
46fc3d4c | 8006 | case 'x': |
8007 | base = 16; | |
46fc3d4c | 8008 | |
8009 | uns_integer: | |
b22c7a20 | 8010 | if (vectorize) { |
ba210ebe | 8011 | STRLEN ulen; |
b22c7a20 | 8012 | vector: |
211dfcf1 HS |
8013 | if (!veclen) |
8014 | continue; | |
b2e23cf9 | 8015 | if (vec_utf) |
9041c2e3 | 8016 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, 0); |
b22c7a20 | 8017 | else { |
a05b299f | 8018 | uv = *vecstr; |
b22c7a20 GS |
8019 | ulen = 1; |
8020 | } | |
8021 | vecstr += ulen; | |
8022 | veclen -= ulen; | |
8023 | } | |
8024 | else if (args) { | |
46fc3d4c | 8025 | switch (intsize) { |
8026 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
8027 | default: uv = va_arg(*args, unsigned); break; | |
8028 | case 'l': uv = va_arg(*args, unsigned long); break; | |
fc36a67e | 8029 | case 'V': uv = va_arg(*args, UV); break; |
cf2093f6 JH |
8030 | #ifdef HAS_QUAD |
8031 | case 'q': uv = va_arg(*args, Quad_t); break; | |
8032 | #endif | |
46fc3d4c | 8033 | } |
8034 | } | |
8035 | else { | |
211dfcf1 | 8036 | uv = SvUVx(argsv); |
46fc3d4c | 8037 | switch (intsize) { |
8038 | case 'h': uv = (unsigned short)uv; break; | |
be28567c | 8039 | default: break; |
46fc3d4c | 8040 | case 'l': uv = (unsigned long)uv; break; |
fc36a67e | 8041 | case 'V': break; |
cf2093f6 JH |
8042 | #ifdef HAS_QUAD |
8043 | case 'q': uv = (Quad_t)uv; break; | |
8044 | #endif | |
46fc3d4c | 8045 | } |
8046 | } | |
8047 | ||
8048 | integer: | |
46fc3d4c | 8049 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 8050 | switch (base) { |
8051 | unsigned dig; | |
8052 | case 16: | |
c10ed8b9 HS |
8053 | if (!uv) |
8054 | alt = FALSE; | |
1d7c1841 GS |
8055 | p = (char*)((c == 'X') |
8056 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 8057 | do { |
8058 | dig = uv & 15; | |
8059 | *--eptr = p[dig]; | |
8060 | } while (uv >>= 4); | |
8061 | if (alt) { | |
46fc3d4c | 8062 | esignbuf[esignlen++] = '0'; |
fc36a67e | 8063 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 8064 | } |
fc36a67e | 8065 | break; |
8066 | case 8: | |
8067 | do { | |
8068 | dig = uv & 7; | |
8069 | *--eptr = '0' + dig; | |
8070 | } while (uv >>= 3); | |
8071 | if (alt && *eptr != '0') | |
8072 | *--eptr = '0'; | |
8073 | break; | |
4f19785b WSI |
8074 | case 2: |
8075 | do { | |
8076 | dig = uv & 1; | |
8077 | *--eptr = '0' + dig; | |
8078 | } while (uv >>= 1); | |
eda88b6d JH |
8079 | if (alt) { |
8080 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 8081 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 8082 | } |
4f19785b | 8083 | break; |
fc36a67e | 8084 | default: /* it had better be ten or less */ |
6bc102ca | 8085 | #if defined(PERL_Y2KWARN) |
e476b1b5 | 8086 | if (ckWARN(WARN_Y2K)) { |
6bc102ca GS |
8087 | STRLEN n; |
8088 | char *s = SvPV(sv,n); | |
8089 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
8090 | && (n == 2 || !isDIGIT(s[n-3]))) | |
8091 | { | |
e476b1b5 | 8092 | Perl_warner(aTHX_ WARN_Y2K, |
6bc102ca GS |
8093 | "Possible Y2K bug: %%%c %s", |
8094 | c, "format string following '19'"); | |
8095 | } | |
8096 | } | |
8097 | #endif | |
fc36a67e | 8098 | do { |
8099 | dig = uv % base; | |
8100 | *--eptr = '0' + dig; | |
8101 | } while (uv /= base); | |
8102 | break; | |
46fc3d4c | 8103 | } |
8104 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
8105 | if (has_precis) { |
8106 | if (precis > elen) | |
8107 | zeros = precis - elen; | |
8108 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
8109 | elen = 0; | |
8110 | } | |
46fc3d4c | 8111 | break; |
8112 | ||
8113 | /* FLOATING POINT */ | |
8114 | ||
fc36a67e | 8115 | case 'F': |
8116 | c = 'f'; /* maybe %F isn't supported here */ | |
8117 | /* FALL THROUGH */ | |
46fc3d4c | 8118 | case 'e': case 'E': |
fc36a67e | 8119 | case 'f': |
46fc3d4c | 8120 | case 'g': case 'G': |
8121 | ||
8122 | /* This is evil, but floating point is even more evil */ | |
8123 | ||
b22c7a20 | 8124 | vectorize = FALSE; |
211dfcf1 | 8125 | nv = args ? va_arg(*args, NV) : SvNVx(argsv); |
fc36a67e | 8126 | |
8127 | need = 0; | |
8128 | if (c != 'e' && c != 'E') { | |
8129 | i = PERL_INT_MIN; | |
73b309ea | 8130 | (void)Perl_frexp(nv, &i); |
fc36a67e | 8131 | if (i == PERL_INT_MIN) |
cea2e8a9 | 8132 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 8133 | if (i > 0) |
fc36a67e | 8134 | need = BIT_DIGITS(i); |
8135 | } | |
8136 | need += has_precis ? precis : 6; /* known default */ | |
8137 | if (need < width) | |
8138 | need = width; | |
8139 | ||
46fc3d4c | 8140 | need += 20; /* fudge factor */ |
80252599 GS |
8141 | if (PL_efloatsize < need) { |
8142 | Safefree(PL_efloatbuf); | |
8143 | PL_efloatsize = need + 20; /* more fudge */ | |
8144 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 8145 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 8146 | } |
8147 | ||
8148 | eptr = ebuf + sizeof ebuf; | |
8149 | *--eptr = '\0'; | |
8150 | *--eptr = c; | |
e5c81feb | 8151 | #if defined(USE_LONG_DOUBLE) && defined(PERL_PRIfldbl) |
cf2093f6 | 8152 | { |
e5c81feb JH |
8153 | /* Copy the one or more characters in a long double |
8154 | * format before the 'base' ([efgEFG]) character to | |
8155 | * the format string. */ | |
8156 | static char const prifldbl[] = PERL_PRIfldbl; | |
8157 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
8158 | while (p >= prifldbl) { *--eptr = *p--; } | |
cf2093f6 | 8159 | } |
65202027 | 8160 | #endif |
46fc3d4c | 8161 | if (has_precis) { |
8162 | base = precis; | |
8163 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8164 | *--eptr = '.'; | |
8165 | } | |
8166 | if (width) { | |
8167 | base = width; | |
8168 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8169 | } | |
8170 | if (fill == '0') | |
8171 | *--eptr = fill; | |
84902520 TB |
8172 | if (left) |
8173 | *--eptr = '-'; | |
46fc3d4c | 8174 | if (plus) |
8175 | *--eptr = plus; | |
8176 | if (alt) | |
8177 | *--eptr = '#'; | |
8178 | *--eptr = '%'; | |
8179 | ||
ff9121f8 JH |
8180 | /* No taint. Otherwise we are in the strange situation |
8181 | * where printf() taints but print($float) doesn't. | |
bda0f7a5 | 8182 | * --jhi */ |
dd8482fc | 8183 | (void)sprintf(PL_efloatbuf, eptr, nv); |
8af02333 | 8184 | |
80252599 GS |
8185 | eptr = PL_efloatbuf; |
8186 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 8187 | break; |
8188 | ||
fc36a67e | 8189 | /* SPECIAL */ |
8190 | ||
8191 | case 'n': | |
b22c7a20 | 8192 | vectorize = FALSE; |
fc36a67e | 8193 | i = SvCUR(sv) - origlen; |
8194 | if (args) { | |
c635e13b | 8195 | switch (intsize) { |
8196 | case 'h': *(va_arg(*args, short*)) = i; break; | |
8197 | default: *(va_arg(*args, int*)) = i; break; | |
8198 | case 'l': *(va_arg(*args, long*)) = i; break; | |
8199 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
8200 | #ifdef HAS_QUAD |
8201 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
8202 | #endif | |
c635e13b | 8203 | } |
fc36a67e | 8204 | } |
9dd79c3f | 8205 | else |
211dfcf1 | 8206 | sv_setuv_mg(argsv, (UV)i); |
fc36a67e | 8207 | continue; /* not "break" */ |
8208 | ||
8209 | /* UNKNOWN */ | |
8210 | ||
46fc3d4c | 8211 | default: |
fc36a67e | 8212 | unknown: |
b22c7a20 | 8213 | vectorize = FALSE; |
599cee73 | 8214 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 8215 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 8216 | SV *msg = sv_newmortal(); |
cea2e8a9 | 8217 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ", |
533c011a | 8218 | (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); |
0f4b6630 | 8219 | if (c) { |
0f4b6630 | 8220 | if (isPRINT(c)) |
1c846c1f | 8221 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
8222 | "\"%%%c\"", c & 0xFF); |
8223 | else | |
8224 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 8225 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 8226 | (UV)c & 0xFF); |
0f4b6630 | 8227 | } else |
c635e13b | 8228 | sv_catpv(msg, "end of string"); |
894356b3 | 8229 | Perl_warner(aTHX_ WARN_PRINTF, "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 8230 | } |
fb73857a | 8231 | |
8232 | /* output mangled stuff ... */ | |
8233 | if (c == '\0') | |
8234 | --q; | |
46fc3d4c | 8235 | eptr = p; |
8236 | elen = q - p; | |
fb73857a | 8237 | |
8238 | /* ... right here, because formatting flags should not apply */ | |
8239 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8240 | p = SvEND(sv); | |
4459522c | 8241 | Copy(eptr, p, elen, char); |
fb73857a | 8242 | p += elen; |
8243 | *p = '\0'; | |
8244 | SvCUR(sv) = p - SvPVX(sv); | |
8245 | continue; /* not "break" */ | |
46fc3d4c | 8246 | } |
8247 | ||
fc36a67e | 8248 | have = esignlen + zeros + elen; |
46fc3d4c | 8249 | need = (have > width ? have : width); |
8250 | gap = need - have; | |
8251 | ||
b22c7a20 | 8252 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 8253 | p = SvEND(sv); |
8254 | if (esignlen && fill == '0') { | |
8255 | for (i = 0; i < esignlen; i++) | |
8256 | *p++ = esignbuf[i]; | |
8257 | } | |
8258 | if (gap && !left) { | |
8259 | memset(p, fill, gap); | |
8260 | p += gap; | |
8261 | } | |
8262 | if (esignlen && fill != '0') { | |
8263 | for (i = 0; i < esignlen; i++) | |
8264 | *p++ = esignbuf[i]; | |
8265 | } | |
fc36a67e | 8266 | if (zeros) { |
8267 | for (i = zeros; i; i--) | |
8268 | *p++ = '0'; | |
8269 | } | |
46fc3d4c | 8270 | if (elen) { |
4459522c | 8271 | Copy(eptr, p, elen, char); |
46fc3d4c | 8272 | p += elen; |
8273 | } | |
8274 | if (gap && left) { | |
8275 | memset(p, ' ', gap); | |
8276 | p += gap; | |
8277 | } | |
b22c7a20 GS |
8278 | if (vectorize) { |
8279 | if (veclen) { | |
4459522c | 8280 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
8281 | p += dotstrlen; |
8282 | } | |
8283 | else | |
8284 | vectorize = FALSE; /* done iterating over vecstr */ | |
8285 | } | |
7e2040f0 GS |
8286 | if (is_utf) |
8287 | SvUTF8_on(sv); | |
46fc3d4c | 8288 | *p = '\0'; |
8289 | SvCUR(sv) = p - SvPVX(sv); | |
b22c7a20 GS |
8290 | if (vectorize) { |
8291 | esignlen = 0; | |
8292 | goto vector; | |
8293 | } | |
46fc3d4c | 8294 | } |
8295 | } | |
51371543 | 8296 | |
645c22ef DM |
8297 | /* ========================================================================= |
8298 | ||
8299 | =head1 Cloning an interpreter | |
8300 | ||
8301 | All the macros and functions in this section are for the private use of | |
8302 | the main function, perl_clone(). | |
8303 | ||
8304 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
8305 | During the course of a cloning, a hash table is used to map old addresses | |
8306 | to new addresses. The table is created and manipulated with the | |
8307 | ptr_table_* functions. | |
8308 | ||
8309 | =cut | |
8310 | ||
8311 | ============================================================================*/ | |
8312 | ||
8313 | ||
1d7c1841 GS |
8314 | #if defined(USE_ITHREADS) |
8315 | ||
8316 | #if defined(USE_THREADS) | |
8317 | # include "error: USE_THREADS and USE_ITHREADS are incompatible" | |
8318 | #endif | |
8319 | ||
1d7c1841 GS |
8320 | #ifndef GpREFCNT_inc |
8321 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
8322 | #endif | |
8323 | ||
8324 | ||
d2d73c3e AB |
8325 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
8326 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
8327 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8328 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
8329 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8330 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
8331 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8332 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
8333 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8334 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
8335 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
8336 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
8337 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
d2d73c3e AB |
8338 | |
8339 | ||
1d7c1841 | 8340 | |
645c22ef DM |
8341 | /* duplicate a regexp */ |
8342 | ||
1d7c1841 GS |
8343 | REGEXP * |
8344 | Perl_re_dup(pTHX_ REGEXP *r) | |
8345 | { | |
8346 | /* XXX fix when pmop->op_pmregexp becomes shared */ | |
8347 | return ReREFCNT_inc(r); | |
8348 | } | |
8349 | ||
d2d73c3e | 8350 | /* duplicate a file handle */ |
645c22ef | 8351 | |
1d7c1841 GS |
8352 | PerlIO * |
8353 | Perl_fp_dup(pTHX_ PerlIO *fp, char type) | |
8354 | { | |
8355 | PerlIO *ret; | |
8356 | if (!fp) | |
8357 | return (PerlIO*)NULL; | |
8358 | ||
8359 | /* look for it in the table first */ | |
8360 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
8361 | if (ret) | |
8362 | return ret; | |
8363 | ||
8364 | /* create anew and remember what it is */ | |
5f1a76d0 | 8365 | ret = PerlIO_fdupopen(aTHX_ fp); |
1d7c1841 GS |
8366 | ptr_table_store(PL_ptr_table, fp, ret); |
8367 | return ret; | |
8368 | } | |
8369 | ||
645c22ef DM |
8370 | /* duplicate a directory handle */ |
8371 | ||
1d7c1841 GS |
8372 | DIR * |
8373 | Perl_dirp_dup(pTHX_ DIR *dp) | |
8374 | { | |
8375 | if (!dp) | |
8376 | return (DIR*)NULL; | |
8377 | /* XXX TODO */ | |
8378 | return dp; | |
8379 | } | |
8380 | ||
645c22ef DM |
8381 | /* duplictate a typeglob */ |
8382 | ||
1d7c1841 | 8383 | GP * |
d2d73c3e | 8384 | Perl_gp_dup(pTHX_ GP *gp, clone_params* param) |
1d7c1841 GS |
8385 | { |
8386 | GP *ret; | |
8387 | if (!gp) | |
8388 | return (GP*)NULL; | |
8389 | /* look for it in the table first */ | |
8390 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
8391 | if (ret) | |
8392 | return ret; | |
8393 | ||
8394 | /* create anew and remember what it is */ | |
8395 | Newz(0, ret, 1, GP); | |
8396 | ptr_table_store(PL_ptr_table, gp, ret); | |
8397 | ||
8398 | /* clone */ | |
8399 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
8400 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
8401 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
8402 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
8403 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
8404 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
8405 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
8406 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
8407 | ret->gp_cvgen = gp->gp_cvgen; |
8408 | ret->gp_flags = gp->gp_flags; | |
8409 | ret->gp_line = gp->gp_line; | |
8410 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
8411 | return ret; | |
8412 | } | |
8413 | ||
645c22ef DM |
8414 | /* duplicate a chain of magic */ |
8415 | ||
1d7c1841 | 8416 | MAGIC * |
d2d73c3e | 8417 | Perl_mg_dup(pTHX_ MAGIC *mg, clone_params* param) |
1d7c1841 | 8418 | { |
cb359b41 JH |
8419 | MAGIC *mgprev = (MAGIC*)NULL; |
8420 | MAGIC *mgret; | |
1d7c1841 GS |
8421 | if (!mg) |
8422 | return (MAGIC*)NULL; | |
8423 | /* look for it in the table first */ | |
8424 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
8425 | if (mgret) | |
8426 | return mgret; | |
8427 | ||
8428 | for (; mg; mg = mg->mg_moremagic) { | |
8429 | MAGIC *nmg; | |
8430 | Newz(0, nmg, 1, MAGIC); | |
cb359b41 | 8431 | if (mgprev) |
1d7c1841 | 8432 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
8433 | else |
8434 | mgret = nmg; | |
1d7c1841 GS |
8435 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
8436 | nmg->mg_private = mg->mg_private; | |
8437 | nmg->mg_type = mg->mg_type; | |
8438 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 8439 | if (mg->mg_type == PERL_MAGIC_qr) { |
1d7c1841 GS |
8440 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj); |
8441 | } | |
8442 | else { | |
8443 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
8444 | ? sv_dup_inc(mg->mg_obj, param) |
8445 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
8446 | } |
8447 | nmg->mg_len = mg->mg_len; | |
8448 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 8449 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
1d7c1841 GS |
8450 | if (mg->mg_len >= 0) { |
8451 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); | |
14befaf4 DM |
8452 | if (mg->mg_type == PERL_MAGIC_overload_table && |
8453 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
8454 | { | |
1d7c1841 GS |
8455 | AMT *amtp = (AMT*)mg->mg_ptr; |
8456 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
8457 | I32 i; | |
8458 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 8459 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
8460 | } |
8461 | } | |
8462 | } | |
8463 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 8464 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 GS |
8465 | } |
8466 | mgprev = nmg; | |
8467 | } | |
8468 | return mgret; | |
8469 | } | |
8470 | ||
645c22ef DM |
8471 | /* create a new pointer-mapping table */ |
8472 | ||
1d7c1841 GS |
8473 | PTR_TBL_t * |
8474 | Perl_ptr_table_new(pTHX) | |
8475 | { | |
8476 | PTR_TBL_t *tbl; | |
8477 | Newz(0, tbl, 1, PTR_TBL_t); | |
8478 | tbl->tbl_max = 511; | |
8479 | tbl->tbl_items = 0; | |
8480 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
8481 | return tbl; | |
8482 | } | |
8483 | ||
645c22ef DM |
8484 | /* map an existing pointer using a table */ |
8485 | ||
1d7c1841 GS |
8486 | void * |
8487 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
8488 | { | |
8489 | PTR_TBL_ENT_t *tblent; | |
d2a79402 | 8490 | UV hash = PTR2UV(sv); |
1d7c1841 GS |
8491 | assert(tbl); |
8492 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
8493 | for (; tblent; tblent = tblent->next) { | |
8494 | if (tblent->oldval == sv) | |
8495 | return tblent->newval; | |
8496 | } | |
8497 | return (void*)NULL; | |
8498 | } | |
8499 | ||
645c22ef DM |
8500 | /* add a new entry to a pointer-mapping table */ |
8501 | ||
1d7c1841 GS |
8502 | void |
8503 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
8504 | { | |
8505 | PTR_TBL_ENT_t *tblent, **otblent; | |
8506 | /* XXX this may be pessimal on platforms where pointers aren't good | |
8507 | * hash values e.g. if they grow faster in the most significant | |
8508 | * bits */ | |
d2a79402 | 8509 | UV hash = PTR2UV(oldv); |
1d7c1841 GS |
8510 | bool i = 1; |
8511 | ||
8512 | assert(tbl); | |
8513 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
8514 | for (tblent = *otblent; tblent; i=0, tblent = tblent->next) { | |
8515 | if (tblent->oldval == oldv) { | |
8516 | tblent->newval = newv; | |
8517 | tbl->tbl_items++; | |
8518 | return; | |
8519 | } | |
8520 | } | |
8521 | Newz(0, tblent, 1, PTR_TBL_ENT_t); | |
8522 | tblent->oldval = oldv; | |
8523 | tblent->newval = newv; | |
8524 | tblent->next = *otblent; | |
8525 | *otblent = tblent; | |
8526 | tbl->tbl_items++; | |
8527 | if (i && tbl->tbl_items > tbl->tbl_max) | |
8528 | ptr_table_split(tbl); | |
8529 | } | |
8530 | ||
645c22ef DM |
8531 | /* double the hash bucket size of an existing ptr table */ |
8532 | ||
1d7c1841 GS |
8533 | void |
8534 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
8535 | { | |
8536 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
8537 | UV oldsize = tbl->tbl_max + 1; | |
8538 | UV newsize = oldsize * 2; | |
8539 | UV i; | |
8540 | ||
8541 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
8542 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
8543 | tbl->tbl_max = --newsize; | |
8544 | tbl->tbl_ary = ary; | |
8545 | for (i=0; i < oldsize; i++, ary++) { | |
8546 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
8547 | if (!*ary) | |
8548 | continue; | |
8549 | curentp = ary + oldsize; | |
8550 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
d2a79402 | 8551 | if ((newsize & PTR2UV(ent->oldval)) != i) { |
1d7c1841 GS |
8552 | *entp = ent->next; |
8553 | ent->next = *curentp; | |
8554 | *curentp = ent; | |
8555 | continue; | |
8556 | } | |
8557 | else | |
8558 | entp = &ent->next; | |
8559 | } | |
8560 | } | |
8561 | } | |
8562 | ||
645c22ef DM |
8563 | /* remove all the entries from a ptr table */ |
8564 | ||
a0739874 DM |
8565 | void |
8566 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
8567 | { | |
8568 | register PTR_TBL_ENT_t **array; | |
8569 | register PTR_TBL_ENT_t *entry; | |
8570 | register PTR_TBL_ENT_t *oentry = Null(PTR_TBL_ENT_t*); | |
8571 | UV riter = 0; | |
8572 | UV max; | |
8573 | ||
8574 | if (!tbl || !tbl->tbl_items) { | |
8575 | return; | |
8576 | } | |
8577 | ||
8578 | array = tbl->tbl_ary; | |
8579 | entry = array[0]; | |
8580 | max = tbl->tbl_max; | |
8581 | ||
8582 | for (;;) { | |
8583 | if (entry) { | |
8584 | oentry = entry; | |
8585 | entry = entry->next; | |
8586 | Safefree(oentry); | |
8587 | } | |
8588 | if (!entry) { | |
8589 | if (++riter > max) { | |
8590 | break; | |
8591 | } | |
8592 | entry = array[riter]; | |
8593 | } | |
8594 | } | |
8595 | ||
8596 | tbl->tbl_items = 0; | |
8597 | } | |
8598 | ||
645c22ef DM |
8599 | /* clear and free a ptr table */ |
8600 | ||
a0739874 DM |
8601 | void |
8602 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
8603 | { | |
8604 | if (!tbl) { | |
8605 | return; | |
8606 | } | |
8607 | ptr_table_clear(tbl); | |
8608 | Safefree(tbl->tbl_ary); | |
8609 | Safefree(tbl); | |
8610 | } | |
8611 | ||
1d7c1841 GS |
8612 | #ifdef DEBUGGING |
8613 | char *PL_watch_pvx; | |
8614 | #endif | |
8615 | ||
645c22ef DM |
8616 | /* attempt to make everything in the typeglob readonly */ |
8617 | ||
5bd07a3d DM |
8618 | STATIC SV * |
8619 | S_gv_share(pTHX_ SV *sstr) | |
8620 | { | |
8621 | GV *gv = (GV*)sstr; | |
8622 | SV *sv = &PL_sv_no; /* just need SvREADONLY-ness */ | |
8623 | ||
8624 | if (GvIO(gv) || GvFORM(gv)) { | |
8625 | GvSHARED_off(gv); /* GvIOs cannot be shared. nor can GvFORMs */ | |
8626 | } | |
8627 | else if (!GvCV(gv)) { | |
8628 | GvCV(gv) = (CV*)sv; | |
8629 | } | |
8630 | else { | |
8631 | /* CvPADLISTs cannot be shared */ | |
8632 | if (!CvXSUB(GvCV(gv))) { | |
8633 | GvSHARED_off(gv); | |
8634 | } | |
8635 | } | |
8636 | ||
8637 | if (!GvSHARED(gv)) { | |
8638 | #if 0 | |
8639 | PerlIO_printf(Perl_debug_log, "gv_share: unable to share %s::%s\n", | |
8640 | HvNAME(GvSTASH(gv)), GvNAME(gv)); | |
8641 | #endif | |
8642 | return Nullsv; | |
8643 | } | |
8644 | ||
4411f3b6 | 8645 | /* |
5bd07a3d DM |
8646 | * write attempts will die with |
8647 | * "Modification of a read-only value attempted" | |
8648 | */ | |
8649 | if (!GvSV(gv)) { | |
8650 | GvSV(gv) = sv; | |
8651 | } | |
8652 | else { | |
8653 | SvREADONLY_on(GvSV(gv)); | |
8654 | } | |
8655 | ||
8656 | if (!GvAV(gv)) { | |
8657 | GvAV(gv) = (AV*)sv; | |
8658 | } | |
8659 | else { | |
8660 | SvREADONLY_on(GvAV(gv)); | |
8661 | } | |
8662 | ||
8663 | if (!GvHV(gv)) { | |
8664 | GvHV(gv) = (HV*)sv; | |
8665 | } | |
8666 | else { | |
8667 | SvREADONLY_on(GvAV(gv)); | |
8668 | } | |
8669 | ||
8670 | return sstr; /* he_dup() will SvREFCNT_inc() */ | |
8671 | } | |
8672 | ||
645c22ef DM |
8673 | /* duplicate an SV of any type (including AV, HV etc) */ |
8674 | ||
1d7c1841 | 8675 | SV * |
d2d73c3e | 8676 | Perl_sv_dup(pTHX_ SV *sstr, clone_params* param) |
1d7c1841 | 8677 | { |
1d7c1841 GS |
8678 | SV *dstr; |
8679 | ||
8680 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
8681 | return Nullsv; | |
8682 | /* look for it in the table first */ | |
8683 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
8684 | if (dstr) | |
8685 | return dstr; | |
8686 | ||
8687 | /* create anew and remember what it is */ | |
8688 | new_SV(dstr); | |
8689 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
8690 | ||
8691 | /* clone */ | |
8692 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
8693 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
8694 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
8695 | ||
8696 | #ifdef DEBUGGING | |
8697 | if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) | |
8698 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", | |
8699 | PL_watch_pvx, SvPVX(sstr)); | |
8700 | #endif | |
8701 | ||
8702 | switch (SvTYPE(sstr)) { | |
8703 | case SVt_NULL: | |
8704 | SvANY(dstr) = NULL; | |
8705 | break; | |
8706 | case SVt_IV: | |
8707 | SvANY(dstr) = new_XIV(); | |
8708 | SvIVX(dstr) = SvIVX(sstr); | |
8709 | break; | |
8710 | case SVt_NV: | |
8711 | SvANY(dstr) = new_XNV(); | |
8712 | SvNVX(dstr) = SvNVX(sstr); | |
8713 | break; | |
8714 | case SVt_RV: | |
8715 | SvANY(dstr) = new_XRV(); | |
89cd1aa3 | 8716 | SvRV(dstr) = SvRV(sstr) && SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8717 | ? sv_dup(SvRV(sstr), param) |
8718 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8719 | break; |
8720 | case SVt_PV: | |
8721 | SvANY(dstr) = new_XPV(); | |
8722 | SvCUR(dstr) = SvCUR(sstr); | |
8723 | SvLEN(dstr) = SvLEN(sstr); | |
8724 | if (SvROK(sstr)) | |
ce4ad881 | 8725 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8726 | ? sv_dup(SvRV(sstr), param) |
8727 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8728 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8729 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8730 | else | |
8731 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8732 | break; | |
8733 | case SVt_PVIV: | |
8734 | SvANY(dstr) = new_XPVIV(); | |
8735 | SvCUR(dstr) = SvCUR(sstr); | |
8736 | SvLEN(dstr) = SvLEN(sstr); | |
8737 | SvIVX(dstr) = SvIVX(sstr); | |
8738 | if (SvROK(sstr)) | |
ce4ad881 | 8739 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8740 | ? sv_dup(SvRV(sstr), param) |
8741 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8742 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8743 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8744 | else | |
8745 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8746 | break; | |
8747 | case SVt_PVNV: | |
8748 | SvANY(dstr) = new_XPVNV(); | |
8749 | SvCUR(dstr) = SvCUR(sstr); | |
8750 | SvLEN(dstr) = SvLEN(sstr); | |
8751 | SvIVX(dstr) = SvIVX(sstr); | |
8752 | SvNVX(dstr) = SvNVX(sstr); | |
8753 | if (SvROK(sstr)) | |
ce4ad881 | 8754 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8755 | ? sv_dup(SvRV(sstr), param) |
8756 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8757 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8758 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8759 | else | |
8760 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8761 | break; | |
8762 | case SVt_PVMG: | |
8763 | SvANY(dstr) = new_XPVMG(); | |
8764 | SvCUR(dstr) = SvCUR(sstr); | |
8765 | SvLEN(dstr) = SvLEN(sstr); | |
8766 | SvIVX(dstr) = SvIVX(sstr); | |
8767 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8768 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8769 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8770 | if (SvROK(sstr)) |
ce4ad881 | 8771 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8772 | ? sv_dup(SvRV(sstr), param) |
8773 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8774 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8775 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8776 | else | |
8777 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8778 | break; | |
8779 | case SVt_PVBM: | |
8780 | SvANY(dstr) = new_XPVBM(); | |
8781 | SvCUR(dstr) = SvCUR(sstr); | |
8782 | SvLEN(dstr) = SvLEN(sstr); | |
8783 | SvIVX(dstr) = SvIVX(sstr); | |
8784 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8785 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8786 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8787 | if (SvROK(sstr)) |
ce4ad881 | 8788 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8789 | ? sv_dup(SvRV(sstr), param) |
8790 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8791 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8792 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8793 | else | |
8794 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8795 | BmRARE(dstr) = BmRARE(sstr); | |
8796 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
8797 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
8798 | break; | |
8799 | case SVt_PVLV: | |
8800 | SvANY(dstr) = new_XPVLV(); | |
8801 | SvCUR(dstr) = SvCUR(sstr); | |
8802 | SvLEN(dstr) = SvLEN(sstr); | |
8803 | SvIVX(dstr) = SvIVX(sstr); | |
8804 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8805 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8806 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8807 | if (SvROK(sstr)) |
ce4ad881 | 8808 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8809 | ? sv_dup(SvRV(sstr), param) |
8810 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8811 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8812 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8813 | else | |
8814 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8815 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ | |
8816 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
d2d73c3e | 8817 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); |
1d7c1841 GS |
8818 | LvTYPE(dstr) = LvTYPE(sstr); |
8819 | break; | |
8820 | case SVt_PVGV: | |
5bd07a3d DM |
8821 | if (GvSHARED((GV*)sstr)) { |
8822 | SV *share; | |
8823 | if ((share = gv_share(sstr))) { | |
8824 | del_SV(dstr); | |
8825 | dstr = share; | |
8826 | #if 0 | |
8827 | PerlIO_printf(Perl_debug_log, "sv_dup: sharing %s::%s\n", | |
8828 | HvNAME(GvSTASH(share)), GvNAME(share)); | |
8829 | #endif | |
8830 | break; | |
8831 | } | |
8832 | } | |
1d7c1841 GS |
8833 | SvANY(dstr) = new_XPVGV(); |
8834 | SvCUR(dstr) = SvCUR(sstr); | |
8835 | SvLEN(dstr) = SvLEN(sstr); | |
8836 | SvIVX(dstr) = SvIVX(sstr); | |
8837 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8838 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8839 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8840 | if (SvROK(sstr)) |
ce4ad881 | 8841 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8842 | ? sv_dup(SvRV(sstr), param) |
8843 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8844 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8845 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8846 | else | |
8847 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8848 | GvNAMELEN(dstr) = GvNAMELEN(sstr); | |
8849 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 8850 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 8851 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 8852 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
8853 | (void)GpREFCNT_inc(GvGP(dstr)); |
8854 | break; | |
8855 | case SVt_PVIO: | |
8856 | SvANY(dstr) = new_XPVIO(); | |
8857 | SvCUR(dstr) = SvCUR(sstr); | |
8858 | SvLEN(dstr) = SvLEN(sstr); | |
8859 | SvIVX(dstr) = SvIVX(sstr); | |
8860 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8861 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8862 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8863 | if (SvROK(sstr)) |
ce4ad881 | 8864 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8865 | ? sv_dup(SvRV(sstr), param) |
8866 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8867 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8868 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8869 | else | |
8870 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8871 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr)); | |
8872 | if (IoOFP(sstr) == IoIFP(sstr)) | |
8873 | IoOFP(dstr) = IoIFP(dstr); | |
8874 | else | |
8875 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr)); | |
8876 | /* PL_rsfp_filters entries have fake IoDIRP() */ | |
8877 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
8878 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
8879 | else | |
8880 | IoDIRP(dstr) = IoDIRP(sstr); | |
8881 | IoLINES(dstr) = IoLINES(sstr); | |
8882 | IoPAGE(dstr) = IoPAGE(sstr); | |
8883 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
8884 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
8885 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); | |
d2d73c3e | 8886 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); |
1d7c1841 | 8887 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
d2d73c3e | 8888 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); |
1d7c1841 | 8889 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
d2d73c3e | 8890 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); |
1d7c1841 GS |
8891 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
8892 | IoTYPE(dstr) = IoTYPE(sstr); | |
8893 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
8894 | break; | |
8895 | case SVt_PVAV: | |
8896 | SvANY(dstr) = new_XPVAV(); | |
8897 | SvCUR(dstr) = SvCUR(sstr); | |
8898 | SvLEN(dstr) = SvLEN(sstr); | |
8899 | SvIVX(dstr) = SvIVX(sstr); | |
8900 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8901 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8902 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
8903 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); | |
1d7c1841 GS |
8904 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
8905 | if (AvARRAY((AV*)sstr)) { | |
8906 | SV **dst_ary, **src_ary; | |
8907 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
8908 | ||
8909 | src_ary = AvARRAY((AV*)sstr); | |
8910 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
8911 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
8912 | SvPVX(dstr) = (char*)dst_ary; | |
8913 | AvALLOC((AV*)dstr) = dst_ary; | |
8914 | if (AvREAL((AV*)sstr)) { | |
8915 | while (items-- > 0) | |
d2d73c3e | 8916 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
8917 | } |
8918 | else { | |
8919 | while (items-- > 0) | |
d2d73c3e | 8920 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
8921 | } |
8922 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
8923 | while (items-- > 0) { | |
8924 | *dst_ary++ = &PL_sv_undef; | |
8925 | } | |
8926 | } | |
8927 | else { | |
8928 | SvPVX(dstr) = Nullch; | |
8929 | AvALLOC((AV*)dstr) = (SV**)NULL; | |
8930 | } | |
8931 | break; | |
8932 | case SVt_PVHV: | |
8933 | SvANY(dstr) = new_XPVHV(); | |
8934 | SvCUR(dstr) = SvCUR(sstr); | |
8935 | SvLEN(dstr) = SvLEN(sstr); | |
8936 | SvIVX(dstr) = SvIVX(sstr); | |
8937 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8938 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8939 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
8940 | HvRITER((HV*)dstr) = HvRITER((HV*)sstr); |
8941 | if (HvARRAY((HV*)sstr)) { | |
1d7c1841 GS |
8942 | STRLEN i = 0; |
8943 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
8944 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
8945 | Newz(0, dxhv->xhv_array, | |
8946 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); | |
8947 | while (i <= sxhv->xhv_max) { | |
8948 | ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], | |
d2d73c3e | 8949 | !!HvSHAREKEYS(sstr), param); |
1d7c1841 GS |
8950 | ++i; |
8951 | } | |
d2d73c3e | 8952 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, !!HvSHAREKEYS(sstr), param); |
1d7c1841 GS |
8953 | } |
8954 | else { | |
8955 | SvPVX(dstr) = Nullch; | |
8956 | HvEITER((HV*)dstr) = (HE*)NULL; | |
8957 | } | |
8958 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
8959 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
f284b03f | 8960 | /* Record stashes for possible cloning in Perl_clone_using(). */ |
6676db26 | 8961 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 8962 | av_push(param->stashes, dstr); |
1d7c1841 GS |
8963 | break; |
8964 | case SVt_PVFM: | |
8965 | SvANY(dstr) = new_XPVFM(); | |
8966 | FmLINES(dstr) = FmLINES(sstr); | |
8967 | goto dup_pvcv; | |
8968 | /* NOTREACHED */ | |
8969 | case SVt_PVCV: | |
8970 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 8971 | dup_pvcv: |
1d7c1841 GS |
8972 | SvCUR(dstr) = SvCUR(sstr); |
8973 | SvLEN(dstr) = SvLEN(sstr); | |
8974 | SvIVX(dstr) = SvIVX(sstr); | |
8975 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8976 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8977 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
8978 | if (SvPVX(sstr) && SvLEN(sstr)) |
8979 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8980 | else | |
8981 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
d2d73c3e | 8982 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 GS |
8983 | CvSTART(dstr) = CvSTART(sstr); |
8984 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); | |
8985 | CvXSUB(dstr) = CvXSUB(sstr); | |
8986 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
d2d73c3e AB |
8987 | CvGV(dstr) = gv_dup(CvGV(sstr), param); |
8988 | if (param->flags & CLONEf_COPY_STACKS) { | |
8989 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
8990 | } else { | |
8991 | CvDEPTH(dstr) = 0; | |
8992 | } | |
1d7c1841 GS |
8993 | if (CvPADLIST(sstr) && !AvREAL(CvPADLIST(sstr))) { |
8994 | /* XXX padlists are real, but pretend to be not */ | |
8995 | AvREAL_on(CvPADLIST(sstr)); | |
d2d73c3e | 8996 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
1d7c1841 GS |
8997 | AvREAL_off(CvPADLIST(sstr)); |
8998 | AvREAL_off(CvPADLIST(dstr)); | |
8999 | } | |
9000 | else | |
d2d73c3e | 9001 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
282f25c9 | 9002 | if (!CvANON(sstr) || CvCLONED(sstr)) |
d2d73c3e | 9003 | CvOUTSIDE(dstr) = cv_dup_inc(CvOUTSIDE(sstr), param); |
282f25c9 | 9004 | else |
d2d73c3e | 9005 | CvOUTSIDE(dstr) = cv_dup(CvOUTSIDE(sstr), param); |
1d7c1841 GS |
9006 | CvFLAGS(dstr) = CvFLAGS(sstr); |
9007 | break; | |
9008 | default: | |
9009 | Perl_croak(aTHX_ "Bizarre SvTYPE [%d]", SvTYPE(sstr)); | |
9010 | break; | |
9011 | } | |
9012 | ||
9013 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
9014 | ++PL_sv_objcount; | |
9015 | ||
9016 | return dstr; | |
d2d73c3e | 9017 | } |
1d7c1841 | 9018 | |
645c22ef DM |
9019 | /* duplicate a context */ |
9020 | ||
1d7c1841 | 9021 | PERL_CONTEXT * |
d2d73c3e | 9022 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, clone_params* param) |
1d7c1841 GS |
9023 | { |
9024 | PERL_CONTEXT *ncxs; | |
9025 | ||
9026 | if (!cxs) | |
9027 | return (PERL_CONTEXT*)NULL; | |
9028 | ||
9029 | /* look for it in the table first */ | |
9030 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
9031 | if (ncxs) | |
9032 | return ncxs; | |
9033 | ||
9034 | /* create anew and remember what it is */ | |
9035 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
9036 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
9037 | ||
9038 | while (ix >= 0) { | |
9039 | PERL_CONTEXT *cx = &cxs[ix]; | |
9040 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
9041 | ncx->cx_type = cx->cx_type; | |
9042 | if (CxTYPE(cx) == CXt_SUBST) { | |
9043 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
9044 | } | |
9045 | else { | |
9046 | ncx->blk_oldsp = cx->blk_oldsp; | |
9047 | ncx->blk_oldcop = cx->blk_oldcop; | |
9048 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
9049 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
9050 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
9051 | ncx->blk_oldpm = cx->blk_oldpm; | |
9052 | ncx->blk_gimme = cx->blk_gimme; | |
9053 | switch (CxTYPE(cx)) { | |
9054 | case CXt_SUB: | |
9055 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
9056 | ? cv_dup_inc(cx->blk_sub.cv, param) |
9057 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 9058 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 9059 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 9060 | : Nullav); |
d2d73c3e | 9061 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
9062 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
9063 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
9064 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
9065 | break; | |
9066 | case CXt_EVAL: | |
9067 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
9068 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
d2d73c3e | 9069 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param);; |
1d7c1841 | 9070 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 9071 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
1d7c1841 GS |
9072 | break; |
9073 | case CXt_LOOP: | |
9074 | ncx->blk_loop.label = cx->blk_loop.label; | |
9075 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
9076 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
9077 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
9078 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
9079 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
9080 | ? cx->blk_loop.iterdata | |
d2d73c3e | 9081 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
a4b82a6f GS |
9082 | ncx->blk_loop.oldcurpad |
9083 | = (SV**)ptr_table_fetch(PL_ptr_table, | |
9084 | cx->blk_loop.oldcurpad); | |
d2d73c3e AB |
9085 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
9086 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
9087 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
9088 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
9089 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
9090 | break; | |
9091 | case CXt_FORMAT: | |
d2d73c3e AB |
9092 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
9093 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
9094 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 GS |
9095 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
9096 | break; | |
9097 | case CXt_BLOCK: | |
9098 | case CXt_NULL: | |
9099 | break; | |
9100 | } | |
9101 | } | |
9102 | --ix; | |
9103 | } | |
9104 | return ncxs; | |
9105 | } | |
9106 | ||
645c22ef DM |
9107 | /* duplicate a stack info structure */ |
9108 | ||
1d7c1841 | 9109 | PERL_SI * |
d2d73c3e | 9110 | Perl_si_dup(pTHX_ PERL_SI *si, clone_params* param) |
1d7c1841 GS |
9111 | { |
9112 | PERL_SI *nsi; | |
9113 | ||
9114 | if (!si) | |
9115 | return (PERL_SI*)NULL; | |
9116 | ||
9117 | /* look for it in the table first */ | |
9118 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
9119 | if (nsi) | |
9120 | return nsi; | |
9121 | ||
9122 | /* create anew and remember what it is */ | |
9123 | Newz(56, nsi, 1, PERL_SI); | |
9124 | ptr_table_store(PL_ptr_table, si, nsi); | |
9125 | ||
d2d73c3e | 9126 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
9127 | nsi->si_cxix = si->si_cxix; |
9128 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 9129 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 9130 | nsi->si_type = si->si_type; |
d2d73c3e AB |
9131 | nsi->si_prev = si_dup(si->si_prev, param); |
9132 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
9133 | nsi->si_markoff = si->si_markoff; |
9134 | ||
9135 | return nsi; | |
9136 | } | |
9137 | ||
9138 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
9139 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
9140 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
9141 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
9142 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
9143 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
9144 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) | |
9145 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
9146 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
9147 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
9148 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
9149 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
9150 | ||
9151 | /* XXXXX todo */ | |
9152 | #define pv_dup_inc(p) SAVEPV(p) | |
9153 | #define pv_dup(p) SAVEPV(p) | |
9154 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
9155 | ||
645c22ef DM |
9156 | /* map any object to the new equivent - either something in the |
9157 | * ptr table, or something in the interpreter structure | |
9158 | */ | |
9159 | ||
1d7c1841 GS |
9160 | void * |
9161 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
9162 | { | |
9163 | void *ret; | |
9164 | ||
9165 | if (!v) | |
9166 | return (void*)NULL; | |
9167 | ||
9168 | /* look for it in the table first */ | |
9169 | ret = ptr_table_fetch(PL_ptr_table, v); | |
9170 | if (ret) | |
9171 | return ret; | |
9172 | ||
9173 | /* see if it is part of the interpreter structure */ | |
9174 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
9175 | ret = (void*)(((char*)aTHXo) + (((char*)v) - (char*)proto_perl)); | |
9176 | else | |
9177 | ret = v; | |
9178 | ||
9179 | return ret; | |
9180 | } | |
9181 | ||
645c22ef DM |
9182 | /* duplicate the save stack */ |
9183 | ||
1d7c1841 | 9184 | ANY * |
d2d73c3e | 9185 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, clone_params* param) |
1d7c1841 GS |
9186 | { |
9187 | ANY *ss = proto_perl->Tsavestack; | |
9188 | I32 ix = proto_perl->Tsavestack_ix; | |
9189 | I32 max = proto_perl->Tsavestack_max; | |
9190 | ANY *nss; | |
9191 | SV *sv; | |
9192 | GV *gv; | |
9193 | AV *av; | |
9194 | HV *hv; | |
9195 | void* ptr; | |
9196 | int intval; | |
9197 | long longval; | |
9198 | GP *gp; | |
9199 | IV iv; | |
9200 | I32 i; | |
9201 | char *c; | |
9202 | void (*dptr) (void*); | |
9203 | void (*dxptr) (pTHXo_ void*); | |
e977893f | 9204 | OP *o; |
1d7c1841 GS |
9205 | |
9206 | Newz(54, nss, max, ANY); | |
9207 | ||
9208 | while (ix > 0) { | |
9209 | i = POPINT(ss,ix); | |
9210 | TOPINT(nss,ix) = i; | |
9211 | switch (i) { | |
9212 | case SAVEt_ITEM: /* normal string */ | |
9213 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9214 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9215 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9216 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9217 | break; |
9218 | case SAVEt_SV: /* scalar reference */ | |
9219 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9220 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9221 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9222 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 9223 | break; |
f4dd75d9 GS |
9224 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
9225 | c = (char*)POPPTR(ss,ix); | |
9226 | TOPPTR(nss,ix) = pv_dup(c); | |
9227 | ptr = POPPTR(ss,ix); | |
9228 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9229 | break; | |
1d7c1841 GS |
9230 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
9231 | case SAVEt_SVREF: /* scalar reference */ | |
9232 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9233 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9234 | ptr = POPPTR(ss,ix); |
9235 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
9236 | break; | |
9237 | case SAVEt_AV: /* array reference */ | |
9238 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9239 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 9240 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9241 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9242 | break; |
9243 | case SAVEt_HV: /* hash reference */ | |
9244 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9245 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 9246 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9247 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9248 | break; |
9249 | case SAVEt_INT: /* int reference */ | |
9250 | ptr = POPPTR(ss,ix); | |
9251 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9252 | intval = (int)POPINT(ss,ix); | |
9253 | TOPINT(nss,ix) = intval; | |
9254 | break; | |
9255 | case SAVEt_LONG: /* long reference */ | |
9256 | ptr = POPPTR(ss,ix); | |
9257 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9258 | longval = (long)POPLONG(ss,ix); | |
9259 | TOPLONG(nss,ix) = longval; | |
9260 | break; | |
9261 | case SAVEt_I32: /* I32 reference */ | |
9262 | case SAVEt_I16: /* I16 reference */ | |
9263 | case SAVEt_I8: /* I8 reference */ | |
9264 | ptr = POPPTR(ss,ix); | |
9265 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9266 | i = POPINT(ss,ix); | |
9267 | TOPINT(nss,ix) = i; | |
9268 | break; | |
9269 | case SAVEt_IV: /* IV reference */ | |
9270 | ptr = POPPTR(ss,ix); | |
9271 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9272 | iv = POPIV(ss,ix); | |
9273 | TOPIV(nss,ix) = iv; | |
9274 | break; | |
9275 | case SAVEt_SPTR: /* SV* reference */ | |
9276 | ptr = POPPTR(ss,ix); | |
9277 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9278 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9279 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
9280 | break; |
9281 | case SAVEt_VPTR: /* random* reference */ | |
9282 | ptr = POPPTR(ss,ix); | |
9283 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9284 | ptr = POPPTR(ss,ix); | |
9285 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9286 | break; | |
9287 | case SAVEt_PPTR: /* char* reference */ | |
9288 | ptr = POPPTR(ss,ix); | |
9289 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9290 | c = (char*)POPPTR(ss,ix); | |
9291 | TOPPTR(nss,ix) = pv_dup(c); | |
9292 | break; | |
9293 | case SAVEt_HPTR: /* HV* reference */ | |
9294 | ptr = POPPTR(ss,ix); | |
9295 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9296 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9297 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
9298 | break; |
9299 | case SAVEt_APTR: /* AV* reference */ | |
9300 | ptr = POPPTR(ss,ix); | |
9301 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9302 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9303 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
9304 | break; |
9305 | case SAVEt_NSTAB: | |
9306 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 9307 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9308 | break; |
9309 | case SAVEt_GP: /* scalar reference */ | |
9310 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 9311 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
9312 | (void)GpREFCNT_inc(gp); |
9313 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 9314 | TOPPTR(nss,ix) = gv_dup_inc(c, param); |
1d7c1841 GS |
9315 | c = (char*)POPPTR(ss,ix); |
9316 | TOPPTR(nss,ix) = pv_dup(c); | |
9317 | iv = POPIV(ss,ix); | |
9318 | TOPIV(nss,ix) = iv; | |
9319 | iv = POPIV(ss,ix); | |
9320 | TOPIV(nss,ix) = iv; | |
9321 | break; | |
9322 | case SAVEt_FREESV: | |
26d9b02f | 9323 | case SAVEt_MORTALIZESV: |
1d7c1841 | 9324 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9325 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9326 | break; |
9327 | case SAVEt_FREEOP: | |
9328 | ptr = POPPTR(ss,ix); | |
9329 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
9330 | /* these are assumed to be refcounted properly */ | |
9331 | switch (((OP*)ptr)->op_type) { | |
9332 | case OP_LEAVESUB: | |
9333 | case OP_LEAVESUBLV: | |
9334 | case OP_LEAVEEVAL: | |
9335 | case OP_LEAVE: | |
9336 | case OP_SCOPE: | |
9337 | case OP_LEAVEWRITE: | |
e977893f GS |
9338 | TOPPTR(nss,ix) = ptr; |
9339 | o = (OP*)ptr; | |
9340 | OpREFCNT_inc(o); | |
1d7c1841 GS |
9341 | break; |
9342 | default: | |
9343 | TOPPTR(nss,ix) = Nullop; | |
9344 | break; | |
9345 | } | |
9346 | } | |
9347 | else | |
9348 | TOPPTR(nss,ix) = Nullop; | |
9349 | break; | |
9350 | case SAVEt_FREEPV: | |
9351 | c = (char*)POPPTR(ss,ix); | |
9352 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9353 | break; | |
9354 | case SAVEt_CLEARSV: | |
9355 | longval = POPLONG(ss,ix); | |
9356 | TOPLONG(nss,ix) = longval; | |
9357 | break; | |
9358 | case SAVEt_DELETE: | |
9359 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9360 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9361 | c = (char*)POPPTR(ss,ix); |
9362 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9363 | i = POPINT(ss,ix); | |
9364 | TOPINT(nss,ix) = i; | |
9365 | break; | |
9366 | case SAVEt_DESTRUCTOR: | |
9367 | ptr = POPPTR(ss,ix); | |
9368 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9369 | dptr = POPDPTR(ss,ix); | |
ef75a179 | 9370 | TOPDPTR(nss,ix) = (void (*)(void*))any_dup((void *)dptr, proto_perl); |
1d7c1841 GS |
9371 | break; |
9372 | case SAVEt_DESTRUCTOR_X: | |
9373 | ptr = POPPTR(ss,ix); | |
9374 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9375 | dxptr = POPDXPTR(ss,ix); | |
ef75a179 | 9376 | TOPDXPTR(nss,ix) = (void (*)(pTHXo_ void*))any_dup((void *)dxptr, proto_perl); |
1d7c1841 GS |
9377 | break; |
9378 | case SAVEt_REGCONTEXT: | |
9379 | case SAVEt_ALLOC: | |
9380 | i = POPINT(ss,ix); | |
9381 | TOPINT(nss,ix) = i; | |
9382 | ix -= i; | |
9383 | break; | |
9384 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
9385 | i = POPINT(ss,ix); | |
9386 | TOPINT(nss,ix) = i; | |
9387 | break; | |
9388 | case SAVEt_AELEM: /* array element */ | |
9389 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9390 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9391 | i = POPINT(ss,ix); |
9392 | TOPINT(nss,ix) = i; | |
9393 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9394 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
9395 | break; |
9396 | case SAVEt_HELEM: /* hash element */ | |
9397 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9398 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9399 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9400 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9401 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 9402 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9403 | break; |
9404 | case SAVEt_OP: | |
9405 | ptr = POPPTR(ss,ix); | |
9406 | TOPPTR(nss,ix) = ptr; | |
9407 | break; | |
9408 | case SAVEt_HINTS: | |
9409 | i = POPINT(ss,ix); | |
9410 | TOPINT(nss,ix) = i; | |
9411 | break; | |
c4410b1b GS |
9412 | case SAVEt_COMPPAD: |
9413 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9414 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 9415 | break; |
c3564e5c GS |
9416 | case SAVEt_PADSV: |
9417 | longval = (long)POPLONG(ss,ix); | |
9418 | TOPLONG(nss,ix) = longval; | |
9419 | ptr = POPPTR(ss,ix); | |
9420 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9421 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9422 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 9423 | break; |
1d7c1841 GS |
9424 | default: |
9425 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
9426 | } | |
9427 | } | |
9428 | ||
9429 | return nss; | |
9430 | } | |
9431 | ||
9432 | #ifdef PERL_OBJECT | |
9433 | #include "XSUB.h" | |
9434 | #endif | |
9435 | ||
645c22ef DM |
9436 | /* |
9437 | =for apidoc perl_clone | |
9438 | ||
9439 | Create and return a new interpreter by cloning the current one. | |
9440 | ||
9441 | =cut | |
9442 | */ | |
9443 | ||
9444 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
9445 | ||
1d7c1841 GS |
9446 | PerlInterpreter * |
9447 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
9448 | { | |
9449 | #ifdef PERL_OBJECT | |
9450 | CPerlObj *pPerl = (CPerlObj*)proto_perl; | |
9451 | #endif | |
9452 | ||
9453 | #ifdef PERL_IMPLICIT_SYS | |
9454 | return perl_clone_using(proto_perl, flags, | |
9455 | proto_perl->IMem, | |
9456 | proto_perl->IMemShared, | |
9457 | proto_perl->IMemParse, | |
9458 | proto_perl->IEnv, | |
9459 | proto_perl->IStdIO, | |
9460 | proto_perl->ILIO, | |
9461 | proto_perl->IDir, | |
9462 | proto_perl->ISock, | |
9463 | proto_perl->IProc); | |
9464 | } | |
9465 | ||
9466 | PerlInterpreter * | |
9467 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
9468 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
9469 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
9470 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
9471 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
9472 | struct IPerlProc* ipP) | |
9473 | { | |
9474 | /* XXX many of the string copies here can be optimized if they're | |
9475 | * constants; they need to be allocated as common memory and just | |
9476 | * their pointers copied. */ | |
9477 | ||
9478 | IV i; | |
d2d73c3e AB |
9479 | clone_params* param = (clone_params*) malloc(sizeof(clone_params)); |
9480 | param->flags = flags; | |
9481 | ||
9482 | ||
9483 | ||
1d7c1841 GS |
9484 | # ifdef PERL_OBJECT |
9485 | CPerlObj *pPerl = new(ipM) CPerlObj(ipM, ipMS, ipMP, ipE, ipStd, ipLIO, | |
9486 | ipD, ipS, ipP); | |
ba869deb | 9487 | PERL_SET_THX(pPerl); |
1d7c1841 GS |
9488 | # else /* !PERL_OBJECT */ |
9489 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); | |
ba869deb | 9490 | PERL_SET_THX(my_perl); |
1d7c1841 GS |
9491 | |
9492 | # ifdef DEBUGGING | |
9493 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); | |
9494 | PL_markstack = 0; | |
9495 | PL_scopestack = 0; | |
9496 | PL_savestack = 0; | |
9497 | PL_retstack = 0; | |
66fe0623 | 9498 | PL_sig_pending = 0; |
1d7c1841 GS |
9499 | # else /* !DEBUGGING */ |
9500 | Zero(my_perl, 1, PerlInterpreter); | |
9501 | # endif /* DEBUGGING */ | |
9502 | ||
9503 | /* host pointers */ | |
9504 | PL_Mem = ipM; | |
9505 | PL_MemShared = ipMS; | |
9506 | PL_MemParse = ipMP; | |
9507 | PL_Env = ipE; | |
9508 | PL_StdIO = ipStd; | |
9509 | PL_LIO = ipLIO; | |
9510 | PL_Dir = ipD; | |
9511 | PL_Sock = ipS; | |
9512 | PL_Proc = ipP; | |
9513 | # endif /* PERL_OBJECT */ | |
9514 | #else /* !PERL_IMPLICIT_SYS */ | |
9515 | IV i; | |
d2d73c3e | 9516 | clone_params* param = (clone_params*) malloc(sizeof(clone_params)); |
1d7c1841 | 9517 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
d2d73c3e | 9518 | param->flags = flags; |
ba869deb | 9519 | PERL_SET_THX(my_perl); |
1d7c1841 | 9520 | |
d2d73c3e AB |
9521 | |
9522 | ||
1d7c1841 GS |
9523 | # ifdef DEBUGGING |
9524 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); | |
9525 | PL_markstack = 0; | |
9526 | PL_scopestack = 0; | |
9527 | PL_savestack = 0; | |
9528 | PL_retstack = 0; | |
66fe0623 | 9529 | PL_sig_pending = 0; |
1d7c1841 GS |
9530 | # else /* !DEBUGGING */ |
9531 | Zero(my_perl, 1, PerlInterpreter); | |
9532 | # endif /* DEBUGGING */ | |
9533 | #endif /* PERL_IMPLICIT_SYS */ | |
9534 | ||
9535 | /* arena roots */ | |
9536 | PL_xiv_arenaroot = NULL; | |
9537 | PL_xiv_root = NULL; | |
612f20c3 | 9538 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 9539 | PL_xnv_root = NULL; |
612f20c3 | 9540 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 9541 | PL_xrv_root = NULL; |
612f20c3 | 9542 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 9543 | PL_xpv_root = NULL; |
612f20c3 | 9544 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 9545 | PL_xpviv_root = NULL; |
612f20c3 | 9546 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 9547 | PL_xpvnv_root = NULL; |
612f20c3 | 9548 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 9549 | PL_xpvcv_root = NULL; |
612f20c3 | 9550 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 9551 | PL_xpvav_root = NULL; |
612f20c3 | 9552 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 9553 | PL_xpvhv_root = NULL; |
612f20c3 | 9554 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 9555 | PL_xpvmg_root = NULL; |
612f20c3 | 9556 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 9557 | PL_xpvlv_root = NULL; |
612f20c3 | 9558 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 9559 | PL_xpvbm_root = NULL; |
612f20c3 | 9560 | PL_he_arenaroot = NULL; |
1d7c1841 GS |
9561 | PL_he_root = NULL; |
9562 | PL_nice_chunk = NULL; | |
9563 | PL_nice_chunk_size = 0; | |
9564 | PL_sv_count = 0; | |
9565 | PL_sv_objcount = 0; | |
9566 | PL_sv_root = Nullsv; | |
9567 | PL_sv_arenaroot = Nullsv; | |
9568 | ||
9569 | PL_debug = proto_perl->Idebug; | |
9570 | ||
9571 | /* create SV map for pointer relocation */ | |
9572 | PL_ptr_table = ptr_table_new(); | |
9573 | ||
9574 | /* initialize these special pointers as early as possible */ | |
9575 | SvANY(&PL_sv_undef) = NULL; | |
9576 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
9577 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
9578 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
9579 | ||
9580 | #ifdef PERL_OBJECT | |
9581 | SvUPGRADE(&PL_sv_no, SVt_PVNV); | |
9582 | #else | |
9583 | SvANY(&PL_sv_no) = new_XPVNV(); | |
9584 | #endif | |
9585 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
9586 | SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9587 | SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0); | |
9588 | SvCUR(&PL_sv_no) = 0; | |
9589 | SvLEN(&PL_sv_no) = 1; | |
9590 | SvNVX(&PL_sv_no) = 0; | |
9591 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); | |
9592 | ||
9593 | #ifdef PERL_OBJECT | |
9594 | SvUPGRADE(&PL_sv_yes, SVt_PVNV); | |
9595 | #else | |
9596 | SvANY(&PL_sv_yes) = new_XPVNV(); | |
9597 | #endif | |
9598 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
9599 | SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9600 | SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1); | |
9601 | SvCUR(&PL_sv_yes) = 1; | |
9602 | SvLEN(&PL_sv_yes) = 2; | |
9603 | SvNVX(&PL_sv_yes) = 1; | |
9604 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); | |
9605 | ||
9606 | /* create shared string table */ | |
9607 | PL_strtab = newHV(); | |
9608 | HvSHAREKEYS_off(PL_strtab); | |
9609 | hv_ksplit(PL_strtab, 512); | |
9610 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); | |
9611 | ||
9612 | PL_compiling = proto_perl->Icompiling; | |
9613 | PL_compiling.cop_stashpv = SAVEPV(PL_compiling.cop_stashpv); | |
9614 | PL_compiling.cop_file = SAVEPV(PL_compiling.cop_file); | |
9615 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); | |
9616 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 9617 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 9618 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 9619 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
9620 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
9621 | ||
9622 | /* pseudo environmental stuff */ | |
9623 | PL_origargc = proto_perl->Iorigargc; | |
9624 | i = PL_origargc; | |
9625 | New(0, PL_origargv, i+1, char*); | |
9626 | PL_origargv[i] = '\0'; | |
9627 | while (i-- > 0) { | |
9628 | PL_origargv[i] = SAVEPV(proto_perl->Iorigargv[i]); | |
9629 | } | |
d2d73c3e AB |
9630 | |
9631 | ||
9632 | param->stashes = newAV(); /* Setup array of objects to call clone on */ | |
9633 | ||
9634 | ||
9635 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
9636 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
9637 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 9638 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
9639 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
9640 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
9641 | |
9642 | /* switches */ | |
9643 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 9644 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
9645 | PL_localpatches = proto_perl->Ilocalpatches; |
9646 | PL_splitstr = proto_perl->Isplitstr; | |
9647 | PL_preprocess = proto_perl->Ipreprocess; | |
9648 | PL_minus_n = proto_perl->Iminus_n; | |
9649 | PL_minus_p = proto_perl->Iminus_p; | |
9650 | PL_minus_l = proto_perl->Iminus_l; | |
9651 | PL_minus_a = proto_perl->Iminus_a; | |
9652 | PL_minus_F = proto_perl->Iminus_F; | |
9653 | PL_doswitches = proto_perl->Idoswitches; | |
9654 | PL_dowarn = proto_perl->Idowarn; | |
9655 | PL_doextract = proto_perl->Idoextract; | |
9656 | PL_sawampersand = proto_perl->Isawampersand; | |
9657 | PL_unsafe = proto_perl->Iunsafe; | |
9658 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 9659 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
9660 | PL_perldb = proto_perl->Iperldb; |
9661 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
9662 | ||
9663 | /* magical thingies */ | |
9664 | /* XXX time(&PL_basetime) when asked for? */ | |
9665 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 9666 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
9667 | |
9668 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
9669 | PL_multiline = proto_perl->Imultiline; | |
9670 | PL_statusvalue = proto_perl->Istatusvalue; | |
9671 | #ifdef VMS | |
9672 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
9673 | #endif | |
9674 | ||
9675 | /* shortcuts to various I/O objects */ | |
d2d73c3e AB |
9676 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
9677 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
9678 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
9679 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
9680 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
9681 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
9682 | |
9683 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 9684 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
9685 | |
9686 | /* shortcuts to misc objects */ | |
d2d73c3e | 9687 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
9688 | |
9689 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
9690 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
9691 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
9692 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
9693 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
9694 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
9695 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
9696 | PL_lineary = av_dup(proto_perl->Ilineary, param); | |
9697 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
9698 | |
9699 | /* symbol tables */ | |
d2d73c3e AB |
9700 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
9701 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
9702 | PL_nullstash = hv_dup(proto_perl->Inullstash, param); | |
9703 | PL_debstash = hv_dup(proto_perl->Idebstash, param); | |
9704 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
9705 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
9706 | ||
9707 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
9708 | PL_endav = av_dup_inc(proto_perl->Iendav, param); | |
9709 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
9710 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
9711 | |
9712 | PL_sub_generation = proto_perl->Isub_generation; | |
9713 | ||
9714 | /* funky return mechanisms */ | |
9715 | PL_forkprocess = proto_perl->Iforkprocess; | |
9716 | ||
9717 | /* subprocess state */ | |
d2d73c3e | 9718 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
9719 | |
9720 | /* internal state */ | |
9721 | PL_tainting = proto_perl->Itainting; | |
9722 | PL_maxo = proto_perl->Imaxo; | |
9723 | if (proto_perl->Iop_mask) | |
9724 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
9725 | else | |
9726 | PL_op_mask = Nullch; | |
9727 | ||
9728 | /* current interpreter roots */ | |
d2d73c3e | 9729 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
9730 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
9731 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 9732 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
9733 | PL_eval_start = proto_perl->Ieval_start; |
9734 | ||
9735 | /* runtime control stuff */ | |
9736 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
9737 | PL_copline = proto_perl->Icopline; | |
9738 | ||
9739 | PL_filemode = proto_perl->Ifilemode; | |
9740 | PL_lastfd = proto_perl->Ilastfd; | |
9741 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
9742 | PL_Argv = NULL; | |
9743 | PL_Cmd = Nullch; | |
9744 | PL_gensym = proto_perl->Igensym; | |
9745 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 9746 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
9747 | PL_laststatval = proto_perl->Ilaststatval; |
9748 | PL_laststype = proto_perl->Ilaststype; | |
9749 | PL_mess_sv = Nullsv; | |
9750 | ||
d2d73c3e | 9751 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
9752 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
9753 | ||
9754 | /* interpreter atexit processing */ | |
9755 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
9756 | if (PL_exitlistlen) { | |
9757 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
9758 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
9759 | } | |
9760 | else | |
9761 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 9762 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
1d7c1841 GS |
9763 | |
9764 | PL_profiledata = NULL; | |
9765 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<'); | |
9766 | /* PL_rsfp_filters entries have fake IoDIRP() */ | |
d2d73c3e | 9767 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 9768 | |
d2d73c3e AB |
9769 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
9770 | PL_comppad = av_dup(proto_perl->Icomppad, param); | |
9771 | PL_comppad_name = av_dup(proto_perl->Icomppad_name, param); | |
1d7c1841 GS |
9772 | PL_comppad_name_fill = proto_perl->Icomppad_name_fill; |
9773 | PL_comppad_name_floor = proto_perl->Icomppad_name_floor; | |
9774 | PL_curpad = (SV**)ptr_table_fetch(PL_ptr_table, | |
9775 | proto_perl->Tcurpad); | |
9776 | ||
9777 | #ifdef HAVE_INTERP_INTERN | |
9778 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
9779 | #endif | |
9780 | ||
9781 | /* more statics moved here */ | |
9782 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 9783 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
9784 | |
9785 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
9786 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
9787 | ||
9788 | PL_uid = proto_perl->Iuid; | |
9789 | PL_euid = proto_perl->Ieuid; | |
9790 | PL_gid = proto_perl->Igid; | |
9791 | PL_egid = proto_perl->Iegid; | |
9792 | PL_nomemok = proto_perl->Inomemok; | |
9793 | PL_an = proto_perl->Ian; | |
9794 | PL_cop_seqmax = proto_perl->Icop_seqmax; | |
9795 | PL_op_seqmax = proto_perl->Iop_seqmax; | |
9796 | PL_evalseq = proto_perl->Ievalseq; | |
9797 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
9798 | PL_origalen = proto_perl->Iorigalen; | |
9799 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
9800 | PL_osname = SAVEPV(proto_perl->Iosname); | |
9801 | PL_sh_path = SAVEPV(proto_perl->Ish_path); | |
9802 | PL_sighandlerp = proto_perl->Isighandlerp; | |
9803 | ||
9804 | ||
9805 | PL_runops = proto_perl->Irunops; | |
9806 | ||
9807 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
9808 | ||
9809 | #ifdef CSH | |
9810 | PL_cshlen = proto_perl->Icshlen; | |
9811 | PL_cshname = SAVEPVN(proto_perl->Icshname, PL_cshlen); | |
9812 | #endif | |
9813 | ||
9814 | PL_lex_state = proto_perl->Ilex_state; | |
9815 | PL_lex_defer = proto_perl->Ilex_defer; | |
9816 | PL_lex_expect = proto_perl->Ilex_expect; | |
9817 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
9818 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
9819 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
9820 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
9821 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
9822 | PL_lex_op = proto_perl->Ilex_op; |
9823 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
9824 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
9825 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
9826 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
9827 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
9828 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
9829 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
9830 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
9831 | ||
9832 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
9833 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
9834 | PL_nexttoke = proto_perl->Inexttoke; | |
9835 | ||
d2d73c3e | 9836 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); |
1d7c1841 GS |
9837 | i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); |
9838 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9839 | i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); | |
9840 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9841 | i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); | |
9842 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9843 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
9844 | i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); | |
9845 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9846 | PL_pending_ident = proto_perl->Ipending_ident; | |
9847 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
9848 | ||
9849 | PL_expect = proto_perl->Iexpect; | |
9850 | ||
9851 | PL_multi_start = proto_perl->Imulti_start; | |
9852 | PL_multi_end = proto_perl->Imulti_end; | |
9853 | PL_multi_open = proto_perl->Imulti_open; | |
9854 | PL_multi_close = proto_perl->Imulti_close; | |
9855 | ||
9856 | PL_error_count = proto_perl->Ierror_count; | |
9857 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 9858 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 GS |
9859 | |
9860 | PL_min_intro_pending = proto_perl->Imin_intro_pending; | |
9861 | PL_max_intro_pending = proto_perl->Imax_intro_pending; | |
9862 | PL_padix = proto_perl->Ipadix; | |
9863 | PL_padix_floor = proto_perl->Ipadix_floor; | |
9864 | PL_pad_reset_pending = proto_perl->Ipad_reset_pending; | |
9865 | ||
9866 | i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); | |
9867 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9868 | i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); | |
9869 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9870 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
9871 | PL_in_my = proto_perl->Iin_my; | |
d2d73c3e | 9872 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
9873 | #ifdef FCRYPT |
9874 | PL_cryptseen = proto_perl->Icryptseen; | |
9875 | #endif | |
9876 | ||
9877 | PL_hints = proto_perl->Ihints; | |
9878 | ||
9879 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
9880 | ||
9881 | #ifdef USE_LOCALE_COLLATE | |
9882 | PL_collation_ix = proto_perl->Icollation_ix; | |
9883 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
9884 | PL_collation_standard = proto_perl->Icollation_standard; | |
9885 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
9886 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
9887 | #endif /* USE_LOCALE_COLLATE */ | |
9888 | ||
9889 | #ifdef USE_LOCALE_NUMERIC | |
9890 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
9891 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
9892 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 9893 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
9894 | #endif /* !USE_LOCALE_NUMERIC */ |
9895 | ||
9896 | /* utf8 character classes */ | |
d2d73c3e AB |
9897 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
9898 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
9899 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
9900 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
9901 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
9902 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
9903 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
9904 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
9905 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
9906 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
9907 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
9908 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
9909 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
9910 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
9911 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
9912 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
9913 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
1d7c1841 GS |
9914 | |
9915 | /* swatch cache */ | |
9916 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
9917 | PL_last_swash_klen = 0; | |
9918 | PL_last_swash_key[0]= '\0'; | |
9919 | PL_last_swash_tmps = (U8*)NULL; | |
9920 | PL_last_swash_slen = 0; | |
9921 | ||
9922 | /* perly.c globals */ | |
9923 | PL_yydebug = proto_perl->Iyydebug; | |
9924 | PL_yynerrs = proto_perl->Iyynerrs; | |
9925 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
9926 | PL_yychar = proto_perl->Iyychar; | |
9927 | PL_yyval = proto_perl->Iyyval; | |
9928 | PL_yylval = proto_perl->Iyylval; | |
9929 | ||
9930 | PL_glob_index = proto_perl->Iglob_index; | |
9931 | PL_srand_called = proto_perl->Isrand_called; | |
9932 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
9933 | PL_bitcount = Nullch; /* reinits on demand */ | |
9934 | ||
66fe0623 NIS |
9935 | if (proto_perl->Ipsig_pend) { |
9936 | Newz(0, PL_psig_pend, SIG_SIZE, int); | |
9dd79c3f | 9937 | } |
66fe0623 NIS |
9938 | else { |
9939 | PL_psig_pend = (int*)NULL; | |
9940 | } | |
9941 | ||
1d7c1841 | 9942 | if (proto_perl->Ipsig_ptr) { |
76d3c696 JH |
9943 | Newz(0, PL_psig_ptr, SIG_SIZE, SV*); |
9944 | Newz(0, PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 9945 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
9946 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
9947 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
9948 | } |
9949 | } | |
9950 | else { | |
9951 | PL_psig_ptr = (SV**)NULL; | |
9952 | PL_psig_name = (SV**)NULL; | |
9953 | } | |
9954 | ||
9955 | /* thrdvar.h stuff */ | |
9956 | ||
a0739874 | 9957 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
9958 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
9959 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
9960 | PL_tmps_max = proto_perl->Ttmps_max; | |
9961 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
9962 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
9963 | i = 0; | |
9964 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 9965 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
9966 | ++i; |
9967 | } | |
9968 | ||
9969 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
9970 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
9971 | Newz(54, PL_markstack, i, I32); | |
9972 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
9973 | - proto_perl->Tmarkstack); | |
9974 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
9975 | - proto_perl->Tmarkstack); | |
9976 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
9977 | PL_markstack_ptr - PL_markstack + 1, I32); | |
9978 | ||
9979 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
9980 | * NOTE: unlike the others! */ | |
9981 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
9982 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
9983 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
9984 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
9985 | ||
9986 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
9987 | * NOTE: unlike the others! */ | |
9988 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
9989 | PL_retstack_max = proto_perl->Tretstack_max; | |
9990 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
9991 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, I32); | |
9992 | ||
9993 | /* NOTE: si_dup() looks at PL_markstack */ | |
d2d73c3e | 9994 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
9995 | |
9996 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
9997 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
9998 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
9999 | |
10000 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
10001 | PL_stack_base = AvARRAY(PL_curstack); | |
10002 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
10003 | - proto_perl->Tstack_base); | |
10004 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
10005 | ||
10006 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
10007 | * NOTE: unlike the others! */ | |
10008 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
10009 | PL_savestack_max = proto_perl->Tsavestack_max; | |
10010 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
d2d73c3e | 10011 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
10012 | } |
10013 | else { | |
10014 | init_stacks(); | |
985e7056 | 10015 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
10016 | } |
10017 | ||
10018 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
10019 | PL_top_env = &PL_start_env; | |
10020 | ||
10021 | PL_op = proto_perl->Top; | |
10022 | ||
10023 | PL_Sv = Nullsv; | |
10024 | PL_Xpv = (XPV*)NULL; | |
10025 | PL_na = proto_perl->Tna; | |
10026 | ||
10027 | PL_statbuf = proto_perl->Tstatbuf; | |
10028 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
10029 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
10030 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
10031 | #ifdef HAS_TIMES |
10032 | PL_timesbuf = proto_perl->Ttimesbuf; | |
10033 | #endif | |
10034 | ||
10035 | PL_tainted = proto_perl->Ttainted; | |
10036 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
10037 | PL_nrs = sv_dup_inc(proto_perl->Tnrs, param); |
10038 | PL_rs = sv_dup_inc(proto_perl->Trs, param); | |
10039 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
10040 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
10041 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 10042 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
10043 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
10044 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
10045 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
10046 | |
10047 | PL_restartop = proto_perl->Trestartop; | |
10048 | PL_in_eval = proto_perl->Tin_eval; | |
10049 | PL_delaymagic = proto_perl->Tdelaymagic; | |
10050 | PL_dirty = proto_perl->Tdirty; | |
10051 | PL_localizing = proto_perl->Tlocalizing; | |
10052 | ||
14dd3ad8 | 10053 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 10054 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 10055 | #endif |
d2d73c3e | 10056 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
1d7c1841 GS |
10057 | PL_av_fetch_sv = Nullsv; |
10058 | PL_hv_fetch_sv = Nullsv; | |
10059 | Zero(&PL_hv_fetch_ent_mh, 1, HE); /* XXX */ | |
10060 | PL_modcount = proto_perl->Tmodcount; | |
10061 | PL_lastgotoprobe = Nullop; | |
10062 | PL_dumpindent = proto_perl->Tdumpindent; | |
10063 | ||
10064 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
10065 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
10066 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
10067 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
10068 | PL_sortcxix = proto_perl->Tsortcxix; |
10069 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
10070 | PL_efloatsize = 0; /* reinits on demand */ | |
10071 | ||
10072 | /* regex stuff */ | |
10073 | ||
10074 | PL_screamfirst = NULL; | |
10075 | PL_screamnext = NULL; | |
10076 | PL_maxscream = -1; /* reinits on demand */ | |
10077 | PL_lastscream = Nullsv; | |
10078 | ||
10079 | PL_watchaddr = NULL; | |
10080 | PL_watchok = Nullch; | |
10081 | ||
10082 | PL_regdummy = proto_perl->Tregdummy; | |
10083 | PL_regcomp_parse = Nullch; | |
10084 | PL_regxend = Nullch; | |
10085 | PL_regcode = (regnode*)NULL; | |
10086 | PL_regnaughty = 0; | |
10087 | PL_regsawback = 0; | |
10088 | PL_regprecomp = Nullch; | |
10089 | PL_regnpar = 0; | |
10090 | PL_regsize = 0; | |
10091 | PL_regflags = 0; | |
10092 | PL_regseen = 0; | |
10093 | PL_seen_zerolen = 0; | |
10094 | PL_seen_evals = 0; | |
10095 | PL_regcomp_rx = (regexp*)NULL; | |
10096 | PL_extralen = 0; | |
10097 | PL_colorset = 0; /* reinits PL_colors[] */ | |
10098 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
10099 | PL_reg_whilem_seen = 0; | |
10100 | PL_reginput = Nullch; | |
10101 | PL_regbol = Nullch; | |
10102 | PL_regeol = Nullch; | |
10103 | PL_regstartp = (I32*)NULL; | |
10104 | PL_regendp = (I32*)NULL; | |
10105 | PL_reglastparen = (U32*)NULL; | |
10106 | PL_regtill = Nullch; | |
1d7c1841 GS |
10107 | PL_reg_start_tmp = (char**)NULL; |
10108 | PL_reg_start_tmpl = 0; | |
10109 | PL_regdata = (struct reg_data*)NULL; | |
10110 | PL_bostr = Nullch; | |
10111 | PL_reg_flags = 0; | |
10112 | PL_reg_eval_set = 0; | |
10113 | PL_regnarrate = 0; | |
10114 | PL_regprogram = (regnode*)NULL; | |
10115 | PL_regindent = 0; | |
10116 | PL_regcc = (CURCUR*)NULL; | |
10117 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
10118 | PL_reg_re = (regexp*)NULL; | |
10119 | PL_reg_ganch = Nullch; | |
10120 | PL_reg_sv = Nullsv; | |
10121 | PL_reg_magic = (MAGIC*)NULL; | |
10122 | PL_reg_oldpos = 0; | |
10123 | PL_reg_oldcurpm = (PMOP*)NULL; | |
10124 | PL_reg_curpm = (PMOP*)NULL; | |
10125 | PL_reg_oldsaved = Nullch; | |
10126 | PL_reg_oldsavedlen = 0; | |
10127 | PL_reg_maxiter = 0; | |
10128 | PL_reg_leftiter = 0; | |
10129 | PL_reg_poscache = Nullch; | |
10130 | PL_reg_poscache_size= 0; | |
10131 | ||
10132 | /* RE engine - function pointers */ | |
10133 | PL_regcompp = proto_perl->Tregcompp; | |
10134 | PL_regexecp = proto_perl->Tregexecp; | |
10135 | PL_regint_start = proto_perl->Tregint_start; | |
10136 | PL_regint_string = proto_perl->Tregint_string; | |
10137 | PL_regfree = proto_perl->Tregfree; | |
10138 | ||
10139 | PL_reginterp_cnt = 0; | |
10140 | PL_reg_starttry = 0; | |
10141 | ||
a0739874 DM |
10142 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
10143 | ptr_table_free(PL_ptr_table); | |
10144 | PL_ptr_table = NULL; | |
10145 | } | |
4a09accc | 10146 | |
f284b03f AMS |
10147 | /* Call the ->CLONE method, if it exists, for each of the stashes |
10148 | identified by sv_dup() above. | |
10149 | */ | |
d2d73c3e AB |
10150 | while(av_len(param->stashes) != -1) { |
10151 | HV* stash = (HV*) av_shift(param->stashes); | |
f284b03f AMS |
10152 | GV* cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); |
10153 | if (cloner && GvCV(cloner)) { | |
10154 | dSP; | |
10155 | ENTER; | |
10156 | SAVETMPS; | |
10157 | PUSHMARK(SP); | |
10158 | XPUSHs(newSVpv(HvNAME(stash), 0)); | |
10159 | PUTBACK; | |
10160 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
10161 | FREETMPS; | |
10162 | LEAVE; | |
10163 | } | |
4a09accc | 10164 | } |
a0739874 | 10165 | |
1d7c1841 GS |
10166 | #ifdef PERL_OBJECT |
10167 | return (PerlInterpreter*)pPerl; | |
10168 | #else | |
10169 | return my_perl; | |
10170 | #endif | |
10171 | } | |
10172 | ||
10173 | #else /* !USE_ITHREADS */ | |
51371543 GS |
10174 | |
10175 | #ifdef PERL_OBJECT | |
51371543 GS |
10176 | #include "XSUB.h" |
10177 | #endif | |
10178 | ||
1d7c1841 GS |
10179 | #endif /* USE_ITHREADS */ |
10180 | ||
d2d73c3e AB |
10181 | |
10182 | ||
10183 | ||
10184 |