Commit | Line | Data |
---|---|---|
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 | * | |
5e045b90 AMS |
11 | * This file contains the code that creates, manipulates and destroys |
12 | * scalar values (SVs). The other types (AV, HV, GV, etc.) reuse the | |
13 | * structure of an SV, so their creation and destruction is handled | |
14 | * here; higher-level functions are in av.c, hv.c, and so on. Opcode | |
15 | * level functions (eg. substr, split, join) for each of the types are | |
16 | * in the pp*.c files. | |
79072805 LW |
17 | */ |
18 | ||
19 | #include "EXTERN.h" | |
864dbfa3 | 20 | #define PERL_IN_SV_C |
79072805 | 21 | #include "perl.h" |
79072805 | 22 | |
51371543 | 23 | #define FCALL *f |
6fc92669 | 24 | #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_force_normal(sv) |
2c5424a7 | 25 | |
645c22ef DM |
26 | |
27 | /* ============================================================================ | |
28 | ||
29 | =head1 Allocation and deallocation of SVs. | |
30 | ||
5e045b90 AMS |
31 | An SV (or AV, HV, etc.) is allocated in two parts: the head (struct sv, |
32 | av, hv...) contains type and reference count information, as well as a | |
33 | pointer to the body (struct xrv, xpv, xpviv...), which contains fields | |
34 | specific to each type. | |
35 | ||
36 | Normally, this allocation is done using arenas, which are approximately | |
37 | 1K chunks of memory parcelled up into N heads or bodies. The first slot | |
38 | in each arena is reserved, and is used to hold a link to the next arena. | |
39 | In the case of heads, the unused first slot also contains some flags and | |
40 | a note of the number of slots. Snaked through each arena chain is a | |
41 | linked list of free items; when this becomes empty, an extra arena is | |
42 | allocated and divided up into N items which are threaded into the free | |
43 | list. | |
645c22ef DM |
44 | |
45 | The following global variables are associated with arenas: | |
46 | ||
47 | PL_sv_arenaroot pointer to list of SV arenas | |
48 | PL_sv_root pointer to list of free SV structures | |
49 | ||
50 | PL_foo_arenaroot pointer to list of foo arenas, | |
51 | PL_foo_root pointer to list of free foo bodies | |
52 | ... for foo in xiv, xnv, xrv, xpv etc. | |
53 | ||
54 | Note that some of the larger and more rarely used body types (eg xpvio) | |
55 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
56 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
57 | with all items individually malloc()ed. In addition, a few SV heads are | |
58 | not allocated from an arena, but are instead directly created as static | |
59 | or auto variables, eg PL_sv_undef. | |
60 | ||
61 | The SV arena serves the secondary purpose of allowing still-live SVs | |
62 | to be located and destroyed during final cleanup. | |
63 | ||
64 | At the lowest level, the macros new_SV() and del_SV() grab and free | |
65 | an SV head. (If debugging with -DD, del_SV() calls the function S_del_sv() | |
66 | to return the SV to the free list with error checking.) new_SV() calls | |
67 | more_sv() / sv_add_arena() to add an extra arena if the free list is empty. | |
68 | SVs in the free list have their SvTYPE field set to all ones. | |
69 | ||
70 | Similarly, there are macros new_XIV()/del_XIV(), new_XNV()/del_XNV() etc | |
71 | that allocate and return individual body types. Normally these are mapped | |
ff276b08 RG |
72 | to the arena-manipulating functions new_xiv()/del_xiv() etc, but may be |
73 | instead mapped directly to malloc()/free() if PURIFY is defined. The | |
645c22ef DM |
74 | new/del functions remove from, or add to, the appropriate PL_foo_root |
75 | list, and call more_xiv() etc to add a new arena if the list is empty. | |
76 | ||
ff276b08 | 77 | At the time of very final cleanup, sv_free_arenas() is called from |
645c22ef DM |
78 | perl_destruct() to physically free all the arenas allocated since the |
79 | start of the interpreter. Note that this also clears PL_he_arenaroot, | |
80 | which is otherwise dealt with in hv.c. | |
81 | ||
82 | Manipulation of any of the PL_*root pointers is protected by enclosing | |
83 | LOCK_SV_MUTEX; ... UNLOCK_SV_MUTEX calls which should Do the Right Thing | |
84 | if threads are enabled. | |
85 | ||
86 | The function visit() scans the SV arenas list, and calls a specified | |
87 | function for each SV it finds which is still live - ie which has an SvTYPE | |
88 | other than all 1's, and a non-zero SvREFCNT. visit() is used by the | |
89 | following functions (specified as [function that calls visit()] / [function | |
90 | called by visit() for each SV]): | |
91 | ||
92 | sv_report_used() / do_report_used() | |
93 | dump all remaining SVs (debugging aid) | |
94 | ||
95 | sv_clean_objs() / do_clean_objs(),do_clean_named_objs() | |
96 | Attempt to free all objects pointed to by RVs, | |
97 | and, unless DISABLE_DESTRUCTOR_KLUDGE is defined, | |
98 | try to do the same for all objects indirectly | |
99 | referenced by typeglobs too. Called once from | |
100 | perl_destruct(), prior to calling sv_clean_all() | |
101 | below. | |
102 | ||
103 | sv_clean_all() / do_clean_all() | |
104 | SvREFCNT_dec(sv) each remaining SV, possibly | |
105 | triggering an sv_free(). It also sets the | |
106 | SVf_BREAK flag on the SV to indicate that the | |
107 | refcnt has been artificially lowered, and thus | |
108 | stopping sv_free() from giving spurious warnings | |
109 | about SVs which unexpectedly have a refcnt | |
110 | of zero. called repeatedly from perl_destruct() | |
111 | until there are no SVs left. | |
112 | ||
113 | =head2 Summary | |
114 | ||
115 | Private API to rest of sv.c | |
116 | ||
117 | new_SV(), del_SV(), | |
118 | ||
119 | new_XIV(), del_XIV(), | |
120 | new_XNV(), del_XNV(), | |
121 | etc | |
122 | ||
123 | Public API: | |
124 | ||
125 | sv_report_used(), sv_clean_objs(), sv_clean_all(), sv_free_arenas() | |
126 | ||
127 | ||
128 | =cut | |
129 | ||
130 | ============================================================================ */ | |
131 | ||
132 | ||
51371543 | 133 | |
4561caa4 CS |
134 | /* |
135 | * "A time to plant, and a time to uproot what was planted..." | |
136 | */ | |
137 | ||
053fc874 GS |
138 | #define plant_SV(p) \ |
139 | STMT_START { \ | |
140 | SvANY(p) = (void *)PL_sv_root; \ | |
141 | SvFLAGS(p) = SVTYPEMASK; \ | |
142 | PL_sv_root = (p); \ | |
143 | --PL_sv_count; \ | |
144 | } STMT_END | |
a0d0e21e | 145 | |
fba3b22e | 146 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
147 | #define uproot_SV(p) \ |
148 | STMT_START { \ | |
149 | (p) = PL_sv_root; \ | |
150 | PL_sv_root = (SV*)SvANY(p); \ | |
151 | ++PL_sv_count; \ | |
152 | } STMT_END | |
153 | ||
645c22ef DM |
154 | |
155 | /* new_SV(): return a new, empty SV head */ | |
156 | ||
053fc874 GS |
157 | #define new_SV(p) \ |
158 | STMT_START { \ | |
159 | LOCK_SV_MUTEX; \ | |
160 | if (PL_sv_root) \ | |
161 | uproot_SV(p); \ | |
162 | else \ | |
163 | (p) = more_sv(); \ | |
164 | UNLOCK_SV_MUTEX; \ | |
165 | SvANY(p) = 0; \ | |
166 | SvREFCNT(p) = 1; \ | |
167 | SvFLAGS(p) = 0; \ | |
168 | } STMT_END | |
463ee0b2 | 169 | |
645c22ef DM |
170 | |
171 | /* del_SV(): return an empty SV head to the free list */ | |
172 | ||
a0d0e21e | 173 | #ifdef DEBUGGING |
4561caa4 | 174 | |
053fc874 GS |
175 | #define del_SV(p) \ |
176 | STMT_START { \ | |
177 | LOCK_SV_MUTEX; \ | |
aea4f609 | 178 | if (DEBUG_D_TEST) \ |
053fc874 GS |
179 | del_sv(p); \ |
180 | else \ | |
181 | plant_SV(p); \ | |
182 | UNLOCK_SV_MUTEX; \ | |
183 | } STMT_END | |
a0d0e21e | 184 | |
76e3520e | 185 | STATIC void |
cea2e8a9 | 186 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 187 | { |
aea4f609 | 188 | if (DEBUG_D_TEST) { |
4633a7c4 | 189 | SV* sva; |
a0d0e21e LW |
190 | SV* sv; |
191 | SV* svend; | |
192 | int ok = 0; | |
3280af22 | 193 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
194 | sv = sva + 1; |
195 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
196 | if (p >= sv && p < svend) |
197 | ok = 1; | |
198 | } | |
199 | if (!ok) { | |
0453d815 PM |
200 | if (ckWARN_d(WARN_INTERNAL)) |
201 | Perl_warner(aTHX_ WARN_INTERNAL, | |
1d7c1841 GS |
202 | "Attempt to free non-arena SV: 0x%"UVxf, |
203 | PTR2UV(p)); | |
a0d0e21e LW |
204 | return; |
205 | } | |
206 | } | |
4561caa4 | 207 | plant_SV(p); |
463ee0b2 | 208 | } |
a0d0e21e | 209 | |
4561caa4 CS |
210 | #else /* ! DEBUGGING */ |
211 | ||
212 | #define del_SV(p) plant_SV(p) | |
213 | ||
214 | #endif /* DEBUGGING */ | |
463ee0b2 | 215 | |
645c22ef DM |
216 | |
217 | /* | |
218 | =for apidoc sv_add_arena | |
219 | ||
220 | Given a chunk of memory, link it to the head of the list of arenas, | |
221 | and split it into a list of free SVs. | |
222 | ||
223 | =cut | |
224 | */ | |
225 | ||
4633a7c4 | 226 | void |
864dbfa3 | 227 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 228 | { |
4633a7c4 | 229 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
230 | register SV* sv; |
231 | register SV* svend; | |
14dd3ad8 | 232 | Zero(ptr, size, char); |
4633a7c4 LW |
233 | |
234 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 235 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
236 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
237 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
238 | ||
3280af22 NIS |
239 | PL_sv_arenaroot = sva; |
240 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
241 | |
242 | svend = &sva[SvREFCNT(sva) - 1]; | |
243 | sv = sva + 1; | |
463ee0b2 | 244 | while (sv < svend) { |
a0d0e21e | 245 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 | 246 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
247 | sv++; |
248 | } | |
249 | SvANY(sv) = 0; | |
4633a7c4 LW |
250 | SvFLAGS(sv) = SVTYPEMASK; |
251 | } | |
252 | ||
645c22ef DM |
253 | /* make some more SVs by adding another arena */ |
254 | ||
fba3b22e | 255 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 256 | STATIC SV* |
cea2e8a9 | 257 | S_more_sv(pTHX) |
4633a7c4 | 258 | { |
4561caa4 CS |
259 | register SV* sv; |
260 | ||
3280af22 NIS |
261 | if (PL_nice_chunk) { |
262 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
263 | PL_nice_chunk = Nullch; | |
30ad99e7 | 264 | PL_nice_chunk_size = 0; |
c07a80fd | 265 | } |
1edc1566 | 266 | else { |
267 | char *chunk; /* must use New here to match call to */ | |
268 | New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ | |
269 | sv_add_arena(chunk, 1008, 0); | |
270 | } | |
4561caa4 CS |
271 | uproot_SV(sv); |
272 | return sv; | |
463ee0b2 LW |
273 | } |
274 | ||
ff276b08 | 275 | /* visit(): call the named function for each non-free SV in the arenas. */ |
645c22ef | 276 | |
5226ed68 | 277 | STATIC I32 |
cea2e8a9 | 278 | S_visit(pTHX_ SVFUNC_t f) |
8990e307 | 279 | { |
4633a7c4 | 280 | SV* sva; |
8990e307 LW |
281 | SV* sv; |
282 | register SV* svend; | |
5226ed68 | 283 | I32 visited = 0; |
8990e307 | 284 | |
3280af22 | 285 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 286 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 | 287 | for (sv = sva + 1; sv < svend; ++sv) { |
f25c30a3 | 288 | if (SvTYPE(sv) != SVTYPEMASK && SvREFCNT(sv)) { |
51371543 | 289 | (FCALL)(aTHXo_ sv); |
5226ed68 JH |
290 | ++visited; |
291 | } | |
8990e307 LW |
292 | } |
293 | } | |
5226ed68 | 294 | return visited; |
8990e307 LW |
295 | } |
296 | ||
645c22ef DM |
297 | /* called by sv_report_used() for each live SV */ |
298 | ||
299 | static void | |
300 | do_report_used(pTHXo_ SV *sv) | |
301 | { | |
302 | if (SvTYPE(sv) != SVTYPEMASK) { | |
303 | PerlIO_printf(Perl_debug_log, "****\n"); | |
304 | sv_dump(sv); | |
305 | } | |
306 | } | |
307 | ||
308 | /* | |
309 | =for apidoc sv_report_used | |
310 | ||
311 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
312 | ||
313 | =cut | |
314 | */ | |
315 | ||
8990e307 | 316 | void |
864dbfa3 | 317 | Perl_sv_report_used(pTHX) |
4561caa4 | 318 | { |
0b94c7bb | 319 | visit(do_report_used); |
4561caa4 CS |
320 | } |
321 | ||
645c22ef DM |
322 | /* called by sv_clean_objs() for each live SV */ |
323 | ||
324 | static void | |
325 | do_clean_objs(pTHXo_ SV *sv) | |
326 | { | |
327 | SV* rv; | |
328 | ||
329 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
330 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv))); | |
331 | if (SvWEAKREF(sv)) { | |
332 | sv_del_backref(sv); | |
333 | SvWEAKREF_off(sv); | |
334 | SvRV(sv) = 0; | |
335 | } else { | |
336 | SvROK_off(sv); | |
337 | SvRV(sv) = 0; | |
338 | SvREFCNT_dec(rv); | |
339 | } | |
340 | } | |
341 | ||
342 | /* XXX Might want to check arrays, etc. */ | |
343 | } | |
344 | ||
345 | /* called by sv_clean_objs() for each live SV */ | |
346 | ||
347 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
348 | static void | |
349 | do_clean_named_objs(pTHXo_ SV *sv) | |
350 | { | |
351 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
352 | if ( SvOBJECT(GvSV(sv)) || | |
353 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || | |
354 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
355 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
356 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
357 | { | |
358 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
359 | SvREFCNT_dec(sv); | |
360 | } | |
361 | } | |
362 | } | |
363 | #endif | |
364 | ||
365 | /* | |
366 | =for apidoc sv_clean_objs | |
367 | ||
368 | Attempt to destroy all objects not yet freed | |
369 | ||
370 | =cut | |
371 | */ | |
372 | ||
4561caa4 | 373 | void |
864dbfa3 | 374 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 375 | { |
3280af22 | 376 | PL_in_clean_objs = TRUE; |
0b94c7bb | 377 | visit(do_clean_objs); |
4561caa4 | 378 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 379 | /* some barnacles may yet remain, clinging to typeglobs */ |
0b94c7bb | 380 | visit(do_clean_named_objs); |
4561caa4 | 381 | #endif |
3280af22 | 382 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
383 | } |
384 | ||
645c22ef DM |
385 | /* called by sv_clean_all() for each live SV */ |
386 | ||
387 | static void | |
388 | do_clean_all(pTHXo_ SV *sv) | |
389 | { | |
390 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
391 | SvFLAGS(sv) |= SVf_BREAK; | |
392 | SvREFCNT_dec(sv); | |
393 | } | |
394 | ||
395 | /* | |
396 | =for apidoc sv_clean_all | |
397 | ||
398 | Decrement the refcnt of each remaining SV, possibly triggering a | |
399 | cleanup. This function may have to be called multiple times to free | |
ff276b08 | 400 | SVs which are in complex self-referential hierarchies. |
645c22ef DM |
401 | |
402 | =cut | |
403 | */ | |
404 | ||
5226ed68 | 405 | I32 |
864dbfa3 | 406 | Perl_sv_clean_all(pTHX) |
8990e307 | 407 | { |
5226ed68 | 408 | I32 cleaned; |
3280af22 | 409 | PL_in_clean_all = TRUE; |
5226ed68 | 410 | cleaned = visit(do_clean_all); |
3280af22 | 411 | PL_in_clean_all = FALSE; |
5226ed68 | 412 | return cleaned; |
8990e307 | 413 | } |
463ee0b2 | 414 | |
645c22ef DM |
415 | /* |
416 | =for apidoc sv_free_arenas | |
417 | ||
418 | Deallocate the memory used by all arenas. Note that all the individual SV | |
419 | heads and bodies within the arenas must already have been freed. | |
420 | ||
421 | =cut | |
422 | */ | |
423 | ||
4633a7c4 | 424 | void |
864dbfa3 | 425 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
426 | { |
427 | SV* sva; | |
428 | SV* svanext; | |
612f20c3 | 429 | XPV *arena, *arenanext; |
4633a7c4 LW |
430 | |
431 | /* Free arenas here, but be careful about fake ones. (We assume | |
432 | contiguity of the fake ones with the corresponding real ones.) */ | |
433 | ||
3280af22 | 434 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
435 | svanext = (SV*) SvANY(sva); |
436 | while (svanext && SvFAKE(svanext)) | |
437 | svanext = (SV*) SvANY(svanext); | |
438 | ||
439 | if (!SvFAKE(sva)) | |
1edc1566 | 440 | Safefree((void *)sva); |
4633a7c4 | 441 | } |
5f05dabc | 442 | |
612f20c3 GS |
443 | for (arena = PL_xiv_arenaroot; arena; arena = arenanext) { |
444 | arenanext = (XPV*)arena->xpv_pv; | |
445 | Safefree(arena); | |
446 | } | |
447 | PL_xiv_arenaroot = 0; | |
448 | ||
449 | for (arena = PL_xnv_arenaroot; arena; arena = arenanext) { | |
450 | arenanext = (XPV*)arena->xpv_pv; | |
451 | Safefree(arena); | |
452 | } | |
453 | PL_xnv_arenaroot = 0; | |
454 | ||
455 | for (arena = PL_xrv_arenaroot; arena; arena = arenanext) { | |
456 | arenanext = (XPV*)arena->xpv_pv; | |
457 | Safefree(arena); | |
458 | } | |
459 | PL_xrv_arenaroot = 0; | |
460 | ||
461 | for (arena = PL_xpv_arenaroot; arena; arena = arenanext) { | |
462 | arenanext = (XPV*)arena->xpv_pv; | |
463 | Safefree(arena); | |
464 | } | |
465 | PL_xpv_arenaroot = 0; | |
466 | ||
467 | for (arena = (XPV*)PL_xpviv_arenaroot; arena; arena = arenanext) { | |
468 | arenanext = (XPV*)arena->xpv_pv; | |
469 | Safefree(arena); | |
470 | } | |
471 | PL_xpviv_arenaroot = 0; | |
472 | ||
473 | for (arena = (XPV*)PL_xpvnv_arenaroot; arena; arena = arenanext) { | |
474 | arenanext = (XPV*)arena->xpv_pv; | |
475 | Safefree(arena); | |
476 | } | |
477 | PL_xpvnv_arenaroot = 0; | |
478 | ||
479 | for (arena = (XPV*)PL_xpvcv_arenaroot; arena; arena = arenanext) { | |
480 | arenanext = (XPV*)arena->xpv_pv; | |
481 | Safefree(arena); | |
482 | } | |
483 | PL_xpvcv_arenaroot = 0; | |
484 | ||
485 | for (arena = (XPV*)PL_xpvav_arenaroot; arena; arena = arenanext) { | |
486 | arenanext = (XPV*)arena->xpv_pv; | |
487 | Safefree(arena); | |
488 | } | |
489 | PL_xpvav_arenaroot = 0; | |
490 | ||
491 | for (arena = (XPV*)PL_xpvhv_arenaroot; arena; arena = arenanext) { | |
492 | arenanext = (XPV*)arena->xpv_pv; | |
493 | Safefree(arena); | |
494 | } | |
495 | PL_xpvhv_arenaroot = 0; | |
496 | ||
497 | for (arena = (XPV*)PL_xpvmg_arenaroot; arena; arena = arenanext) { | |
498 | arenanext = (XPV*)arena->xpv_pv; | |
499 | Safefree(arena); | |
500 | } | |
501 | PL_xpvmg_arenaroot = 0; | |
502 | ||
503 | for (arena = (XPV*)PL_xpvlv_arenaroot; arena; arena = arenanext) { | |
504 | arenanext = (XPV*)arena->xpv_pv; | |
505 | Safefree(arena); | |
506 | } | |
507 | PL_xpvlv_arenaroot = 0; | |
508 | ||
509 | for (arena = (XPV*)PL_xpvbm_arenaroot; arena; arena = arenanext) { | |
510 | arenanext = (XPV*)arena->xpv_pv; | |
511 | Safefree(arena); | |
512 | } | |
513 | PL_xpvbm_arenaroot = 0; | |
514 | ||
515 | for (arena = (XPV*)PL_he_arenaroot; arena; arena = arenanext) { | |
516 | arenanext = (XPV*)arena->xpv_pv; | |
517 | Safefree(arena); | |
518 | } | |
519 | PL_he_arenaroot = 0; | |
520 | ||
3280af22 NIS |
521 | if (PL_nice_chunk) |
522 | Safefree(PL_nice_chunk); | |
523 | PL_nice_chunk = Nullch; | |
524 | PL_nice_chunk_size = 0; | |
525 | PL_sv_arenaroot = 0; | |
526 | PL_sv_root = 0; | |
4633a7c4 LW |
527 | } |
528 | ||
645c22ef DM |
529 | /* |
530 | =for apidoc report_uninit | |
531 | ||
532 | Print appropriate "Use of uninitialized variable" warning | |
533 | ||
534 | =cut | |
535 | */ | |
536 | ||
1d7c1841 GS |
537 | void |
538 | Perl_report_uninit(pTHX) | |
539 | { | |
540 | if (PL_op) | |
541 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, | |
542 | " in ", PL_op_desc[PL_op->op_type]); | |
543 | else | |
544 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, "", ""); | |
545 | } | |
546 | ||
645c22ef DM |
547 | /* grab a new IV body from the free list, allocating more if necessary */ |
548 | ||
76e3520e | 549 | STATIC XPVIV* |
cea2e8a9 | 550 | S_new_xiv(pTHX) |
463ee0b2 | 551 | { |
ea7c11a3 | 552 | IV* xiv; |
cbe51380 GS |
553 | LOCK_SV_MUTEX; |
554 | if (!PL_xiv_root) | |
555 | more_xiv(); | |
556 | xiv = PL_xiv_root; | |
557 | /* | |
558 | * See comment in more_xiv() -- RAM. | |
559 | */ | |
560 | PL_xiv_root = *(IV**)xiv; | |
561 | UNLOCK_SV_MUTEX; | |
562 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
563 | } |
564 | ||
645c22ef DM |
565 | /* return an IV body to the free list */ |
566 | ||
76e3520e | 567 | STATIC void |
cea2e8a9 | 568 | S_del_xiv(pTHX_ XPVIV *p) |
463ee0b2 | 569 | { |
23e6a22f | 570 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 571 | LOCK_SV_MUTEX; |
3280af22 NIS |
572 | *(IV**)xiv = PL_xiv_root; |
573 | PL_xiv_root = xiv; | |
cbe51380 | 574 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
575 | } |
576 | ||
645c22ef DM |
577 | /* allocate another arena's worth of IV bodies */ |
578 | ||
cbe51380 | 579 | STATIC void |
cea2e8a9 | 580 | S_more_xiv(pTHX) |
463ee0b2 | 581 | { |
ea7c11a3 SM |
582 | register IV* xiv; |
583 | register IV* xivend; | |
8c52afec IZ |
584 | XPV* ptr; |
585 | New(705, ptr, 1008/sizeof(XPV), XPV); | |
645c22ef | 586 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
3280af22 | 587 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ |
a0d0e21e | 588 | |
ea7c11a3 SM |
589 | xiv = (IV*) ptr; |
590 | xivend = &xiv[1008 / sizeof(IV) - 1]; | |
645c22ef | 591 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ |
3280af22 | 592 | PL_xiv_root = xiv; |
463ee0b2 | 593 | while (xiv < xivend) { |
ea7c11a3 | 594 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
595 | xiv++; |
596 | } | |
ea7c11a3 | 597 | *(IV**)xiv = 0; |
463ee0b2 LW |
598 | } |
599 | ||
645c22ef DM |
600 | /* grab a new NV body from the free list, allocating more if necessary */ |
601 | ||
76e3520e | 602 | STATIC XPVNV* |
cea2e8a9 | 603 | S_new_xnv(pTHX) |
463ee0b2 | 604 | { |
65202027 | 605 | NV* xnv; |
cbe51380 GS |
606 | LOCK_SV_MUTEX; |
607 | if (!PL_xnv_root) | |
608 | more_xnv(); | |
609 | xnv = PL_xnv_root; | |
65202027 | 610 | PL_xnv_root = *(NV**)xnv; |
cbe51380 GS |
611 | UNLOCK_SV_MUTEX; |
612 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
613 | } |
614 | ||
645c22ef DM |
615 | /* return an NV body to the free list */ |
616 | ||
76e3520e | 617 | STATIC void |
cea2e8a9 | 618 | S_del_xnv(pTHX_ XPVNV *p) |
463ee0b2 | 619 | { |
65202027 | 620 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 621 | LOCK_SV_MUTEX; |
65202027 | 622 | *(NV**)xnv = PL_xnv_root; |
3280af22 | 623 | PL_xnv_root = xnv; |
cbe51380 | 624 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
625 | } |
626 | ||
645c22ef DM |
627 | /* allocate another arena's worth of NV bodies */ |
628 | ||
cbe51380 | 629 | STATIC void |
cea2e8a9 | 630 | S_more_xnv(pTHX) |
463ee0b2 | 631 | { |
65202027 DS |
632 | register NV* xnv; |
633 | register NV* xnvend; | |
612f20c3 GS |
634 | XPV *ptr; |
635 | New(711, ptr, 1008/sizeof(XPV), XPV); | |
636 | ptr->xpv_pv = (char*)PL_xnv_arenaroot; | |
637 | PL_xnv_arenaroot = ptr; | |
638 | ||
639 | xnv = (NV*) ptr; | |
65202027 DS |
640 | xnvend = &xnv[1008 / sizeof(NV) - 1]; |
641 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ | |
3280af22 | 642 | PL_xnv_root = xnv; |
463ee0b2 | 643 | while (xnv < xnvend) { |
65202027 | 644 | *(NV**)xnv = (NV*)(xnv + 1); |
463ee0b2 LW |
645 | xnv++; |
646 | } | |
65202027 | 647 | *(NV**)xnv = 0; |
463ee0b2 LW |
648 | } |
649 | ||
645c22ef DM |
650 | /* grab a new struct xrv from the free list, allocating more if necessary */ |
651 | ||
76e3520e | 652 | STATIC XRV* |
cea2e8a9 | 653 | S_new_xrv(pTHX) |
ed6116ce LW |
654 | { |
655 | XRV* xrv; | |
cbe51380 GS |
656 | LOCK_SV_MUTEX; |
657 | if (!PL_xrv_root) | |
658 | more_xrv(); | |
659 | xrv = PL_xrv_root; | |
660 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
661 | UNLOCK_SV_MUTEX; | |
662 | return xrv; | |
ed6116ce LW |
663 | } |
664 | ||
645c22ef DM |
665 | /* return a struct xrv to the free list */ |
666 | ||
76e3520e | 667 | STATIC void |
cea2e8a9 | 668 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 669 | { |
cbe51380 | 670 | LOCK_SV_MUTEX; |
3280af22 NIS |
671 | p->xrv_rv = (SV*)PL_xrv_root; |
672 | PL_xrv_root = p; | |
cbe51380 | 673 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
674 | } |
675 | ||
645c22ef DM |
676 | /* allocate another arena's worth of struct xrv */ |
677 | ||
cbe51380 | 678 | STATIC void |
cea2e8a9 | 679 | S_more_xrv(pTHX) |
ed6116ce | 680 | { |
ed6116ce LW |
681 | register XRV* xrv; |
682 | register XRV* xrvend; | |
612f20c3 GS |
683 | XPV *ptr; |
684 | New(712, ptr, 1008/sizeof(XPV), XPV); | |
685 | ptr->xpv_pv = (char*)PL_xrv_arenaroot; | |
686 | PL_xrv_arenaroot = ptr; | |
687 | ||
688 | xrv = (XRV*) ptr; | |
ed6116ce | 689 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
612f20c3 GS |
690 | xrv += (sizeof(XPV) - 1) / sizeof(XRV) + 1; |
691 | PL_xrv_root = xrv; | |
ed6116ce LW |
692 | while (xrv < xrvend) { |
693 | xrv->xrv_rv = (SV*)(xrv + 1); | |
694 | xrv++; | |
695 | } | |
696 | xrv->xrv_rv = 0; | |
ed6116ce LW |
697 | } |
698 | ||
645c22ef DM |
699 | /* grab a new struct xpv from the free list, allocating more if necessary */ |
700 | ||
76e3520e | 701 | STATIC XPV* |
cea2e8a9 | 702 | S_new_xpv(pTHX) |
463ee0b2 LW |
703 | { |
704 | XPV* xpv; | |
cbe51380 GS |
705 | LOCK_SV_MUTEX; |
706 | if (!PL_xpv_root) | |
707 | more_xpv(); | |
708 | xpv = PL_xpv_root; | |
709 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
710 | UNLOCK_SV_MUTEX; | |
711 | return xpv; | |
463ee0b2 LW |
712 | } |
713 | ||
645c22ef DM |
714 | /* return a struct xpv to the free list */ |
715 | ||
76e3520e | 716 | STATIC void |
cea2e8a9 | 717 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 718 | { |
cbe51380 | 719 | LOCK_SV_MUTEX; |
3280af22 NIS |
720 | p->xpv_pv = (char*)PL_xpv_root; |
721 | PL_xpv_root = p; | |
cbe51380 | 722 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
723 | } |
724 | ||
645c22ef DM |
725 | /* allocate another arena's worth of struct xpv */ |
726 | ||
cbe51380 | 727 | STATIC void |
cea2e8a9 | 728 | S_more_xpv(pTHX) |
463ee0b2 | 729 | { |
463ee0b2 LW |
730 | register XPV* xpv; |
731 | register XPV* xpvend; | |
612f20c3 GS |
732 | New(713, xpv, 1008/sizeof(XPV), XPV); |
733 | xpv->xpv_pv = (char*)PL_xpv_arenaroot; | |
734 | PL_xpv_arenaroot = xpv; | |
735 | ||
463ee0b2 | 736 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
612f20c3 | 737 | PL_xpv_root = ++xpv; |
463ee0b2 LW |
738 | while (xpv < xpvend) { |
739 | xpv->xpv_pv = (char*)(xpv + 1); | |
740 | xpv++; | |
741 | } | |
742 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
743 | } |
744 | ||
645c22ef DM |
745 | /* grab a new struct xpviv from the free list, allocating more if necessary */ |
746 | ||
932e9ff9 VB |
747 | STATIC XPVIV* |
748 | S_new_xpviv(pTHX) | |
749 | { | |
750 | XPVIV* xpviv; | |
751 | LOCK_SV_MUTEX; | |
752 | if (!PL_xpviv_root) | |
753 | more_xpviv(); | |
754 | xpviv = PL_xpviv_root; | |
755 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
756 | UNLOCK_SV_MUTEX; | |
757 | return xpviv; | |
758 | } | |
759 | ||
645c22ef DM |
760 | /* return a struct xpviv to the free list */ |
761 | ||
932e9ff9 VB |
762 | STATIC void |
763 | S_del_xpviv(pTHX_ XPVIV *p) | |
764 | { | |
765 | LOCK_SV_MUTEX; | |
766 | p->xpv_pv = (char*)PL_xpviv_root; | |
767 | PL_xpviv_root = p; | |
768 | UNLOCK_SV_MUTEX; | |
769 | } | |
770 | ||
645c22ef DM |
771 | /* allocate another arena's worth of struct xpviv */ |
772 | ||
932e9ff9 VB |
773 | STATIC void |
774 | S_more_xpviv(pTHX) | |
775 | { | |
776 | register XPVIV* xpviv; | |
777 | register XPVIV* xpvivend; | |
612f20c3 GS |
778 | New(714, xpviv, 1008/sizeof(XPVIV), XPVIV); |
779 | xpviv->xpv_pv = (char*)PL_xpviv_arenaroot; | |
780 | PL_xpviv_arenaroot = xpviv; | |
781 | ||
932e9ff9 | 782 | xpvivend = &xpviv[1008 / sizeof(XPVIV) - 1]; |
612f20c3 | 783 | PL_xpviv_root = ++xpviv; |
932e9ff9 VB |
784 | while (xpviv < xpvivend) { |
785 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
786 | xpviv++; | |
787 | } | |
788 | xpviv->xpv_pv = 0; | |
789 | } | |
790 | ||
645c22ef DM |
791 | /* grab a new struct xpvnv from the free list, allocating more if necessary */ |
792 | ||
932e9ff9 VB |
793 | STATIC XPVNV* |
794 | S_new_xpvnv(pTHX) | |
795 | { | |
796 | XPVNV* xpvnv; | |
797 | LOCK_SV_MUTEX; | |
798 | if (!PL_xpvnv_root) | |
799 | more_xpvnv(); | |
800 | xpvnv = PL_xpvnv_root; | |
801 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
802 | UNLOCK_SV_MUTEX; | |
803 | return xpvnv; | |
804 | } | |
805 | ||
645c22ef DM |
806 | /* return a struct xpvnv to the free list */ |
807 | ||
932e9ff9 VB |
808 | STATIC void |
809 | S_del_xpvnv(pTHX_ XPVNV *p) | |
810 | { | |
811 | LOCK_SV_MUTEX; | |
812 | p->xpv_pv = (char*)PL_xpvnv_root; | |
813 | PL_xpvnv_root = p; | |
814 | UNLOCK_SV_MUTEX; | |
815 | } | |
816 | ||
645c22ef DM |
817 | /* allocate another arena's worth of struct xpvnv */ |
818 | ||
932e9ff9 VB |
819 | STATIC void |
820 | S_more_xpvnv(pTHX) | |
821 | { | |
822 | register XPVNV* xpvnv; | |
823 | register XPVNV* xpvnvend; | |
612f20c3 GS |
824 | New(715, xpvnv, 1008/sizeof(XPVNV), XPVNV); |
825 | xpvnv->xpv_pv = (char*)PL_xpvnv_arenaroot; | |
826 | PL_xpvnv_arenaroot = xpvnv; | |
827 | ||
932e9ff9 | 828 | xpvnvend = &xpvnv[1008 / sizeof(XPVNV) - 1]; |
612f20c3 | 829 | PL_xpvnv_root = ++xpvnv; |
932e9ff9 VB |
830 | while (xpvnv < xpvnvend) { |
831 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
832 | xpvnv++; | |
833 | } | |
834 | xpvnv->xpv_pv = 0; | |
835 | } | |
836 | ||
645c22ef DM |
837 | /* grab a new struct xpvcv from the free list, allocating more if necessary */ |
838 | ||
932e9ff9 VB |
839 | STATIC XPVCV* |
840 | S_new_xpvcv(pTHX) | |
841 | { | |
842 | XPVCV* xpvcv; | |
843 | LOCK_SV_MUTEX; | |
844 | if (!PL_xpvcv_root) | |
845 | more_xpvcv(); | |
846 | xpvcv = PL_xpvcv_root; | |
847 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
848 | UNLOCK_SV_MUTEX; | |
849 | return xpvcv; | |
850 | } | |
851 | ||
645c22ef DM |
852 | /* return a struct xpvcv to the free list */ |
853 | ||
932e9ff9 VB |
854 | STATIC void |
855 | S_del_xpvcv(pTHX_ XPVCV *p) | |
856 | { | |
857 | LOCK_SV_MUTEX; | |
858 | p->xpv_pv = (char*)PL_xpvcv_root; | |
859 | PL_xpvcv_root = p; | |
860 | UNLOCK_SV_MUTEX; | |
861 | } | |
862 | ||
645c22ef DM |
863 | /* allocate another arena's worth of struct xpvcv */ |
864 | ||
932e9ff9 VB |
865 | STATIC void |
866 | S_more_xpvcv(pTHX) | |
867 | { | |
868 | register XPVCV* xpvcv; | |
869 | register XPVCV* xpvcvend; | |
612f20c3 GS |
870 | New(716, xpvcv, 1008/sizeof(XPVCV), XPVCV); |
871 | xpvcv->xpv_pv = (char*)PL_xpvcv_arenaroot; | |
872 | PL_xpvcv_arenaroot = xpvcv; | |
873 | ||
932e9ff9 | 874 | xpvcvend = &xpvcv[1008 / sizeof(XPVCV) - 1]; |
612f20c3 | 875 | PL_xpvcv_root = ++xpvcv; |
932e9ff9 VB |
876 | while (xpvcv < xpvcvend) { |
877 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
878 | xpvcv++; | |
879 | } | |
880 | xpvcv->xpv_pv = 0; | |
881 | } | |
882 | ||
645c22ef DM |
883 | /* grab a new struct xpvav from the free list, allocating more if necessary */ |
884 | ||
932e9ff9 VB |
885 | STATIC XPVAV* |
886 | S_new_xpvav(pTHX) | |
887 | { | |
888 | XPVAV* xpvav; | |
889 | LOCK_SV_MUTEX; | |
890 | if (!PL_xpvav_root) | |
891 | more_xpvav(); | |
892 | xpvav = PL_xpvav_root; | |
893 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
894 | UNLOCK_SV_MUTEX; | |
895 | return xpvav; | |
896 | } | |
897 | ||
645c22ef DM |
898 | /* return a struct xpvav to the free list */ |
899 | ||
932e9ff9 VB |
900 | STATIC void |
901 | S_del_xpvav(pTHX_ XPVAV *p) | |
902 | { | |
903 | LOCK_SV_MUTEX; | |
904 | p->xav_array = (char*)PL_xpvav_root; | |
905 | PL_xpvav_root = p; | |
906 | UNLOCK_SV_MUTEX; | |
907 | } | |
908 | ||
645c22ef DM |
909 | /* allocate another arena's worth of struct xpvav */ |
910 | ||
932e9ff9 VB |
911 | STATIC void |
912 | S_more_xpvav(pTHX) | |
913 | { | |
914 | register XPVAV* xpvav; | |
915 | register XPVAV* xpvavend; | |
612f20c3 GS |
916 | New(717, xpvav, 1008/sizeof(XPVAV), XPVAV); |
917 | xpvav->xav_array = (char*)PL_xpvav_arenaroot; | |
918 | PL_xpvav_arenaroot = xpvav; | |
919 | ||
932e9ff9 | 920 | xpvavend = &xpvav[1008 / sizeof(XPVAV) - 1]; |
612f20c3 | 921 | PL_xpvav_root = ++xpvav; |
932e9ff9 VB |
922 | while (xpvav < xpvavend) { |
923 | xpvav->xav_array = (char*)(xpvav + 1); | |
924 | xpvav++; | |
925 | } | |
926 | xpvav->xav_array = 0; | |
927 | } | |
928 | ||
645c22ef DM |
929 | /* grab a new struct xpvhv from the free list, allocating more if necessary */ |
930 | ||
932e9ff9 VB |
931 | STATIC XPVHV* |
932 | S_new_xpvhv(pTHX) | |
933 | { | |
934 | XPVHV* xpvhv; | |
935 | LOCK_SV_MUTEX; | |
936 | if (!PL_xpvhv_root) | |
937 | more_xpvhv(); | |
938 | xpvhv = PL_xpvhv_root; | |
939 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
940 | UNLOCK_SV_MUTEX; | |
941 | return xpvhv; | |
942 | } | |
943 | ||
645c22ef DM |
944 | /* return a struct xpvhv to the free list */ |
945 | ||
932e9ff9 VB |
946 | STATIC void |
947 | S_del_xpvhv(pTHX_ XPVHV *p) | |
948 | { | |
949 | LOCK_SV_MUTEX; | |
950 | p->xhv_array = (char*)PL_xpvhv_root; | |
951 | PL_xpvhv_root = p; | |
952 | UNLOCK_SV_MUTEX; | |
953 | } | |
954 | ||
645c22ef DM |
955 | /* allocate another arena's worth of struct xpvhv */ |
956 | ||
932e9ff9 VB |
957 | STATIC void |
958 | S_more_xpvhv(pTHX) | |
959 | { | |
960 | register XPVHV* xpvhv; | |
961 | register XPVHV* xpvhvend; | |
612f20c3 GS |
962 | New(718, xpvhv, 1008/sizeof(XPVHV), XPVHV); |
963 | xpvhv->xhv_array = (char*)PL_xpvhv_arenaroot; | |
964 | PL_xpvhv_arenaroot = xpvhv; | |
965 | ||
932e9ff9 | 966 | xpvhvend = &xpvhv[1008 / sizeof(XPVHV) - 1]; |
612f20c3 | 967 | PL_xpvhv_root = ++xpvhv; |
932e9ff9 VB |
968 | while (xpvhv < xpvhvend) { |
969 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
970 | xpvhv++; | |
971 | } | |
972 | xpvhv->xhv_array = 0; | |
973 | } | |
974 | ||
645c22ef DM |
975 | /* grab a new struct xpvmg from the free list, allocating more if necessary */ |
976 | ||
932e9ff9 VB |
977 | STATIC XPVMG* |
978 | S_new_xpvmg(pTHX) | |
979 | { | |
980 | XPVMG* xpvmg; | |
981 | LOCK_SV_MUTEX; | |
982 | if (!PL_xpvmg_root) | |
983 | more_xpvmg(); | |
984 | xpvmg = PL_xpvmg_root; | |
985 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
986 | UNLOCK_SV_MUTEX; | |
987 | return xpvmg; | |
988 | } | |
989 | ||
645c22ef DM |
990 | /* return a struct xpvmg to the free list */ |
991 | ||
932e9ff9 VB |
992 | STATIC void |
993 | S_del_xpvmg(pTHX_ XPVMG *p) | |
994 | { | |
995 | LOCK_SV_MUTEX; | |
996 | p->xpv_pv = (char*)PL_xpvmg_root; | |
997 | PL_xpvmg_root = p; | |
998 | UNLOCK_SV_MUTEX; | |
999 | } | |
1000 | ||
645c22ef DM |
1001 | /* allocate another arena's worth of struct xpvmg */ |
1002 | ||
932e9ff9 VB |
1003 | STATIC void |
1004 | S_more_xpvmg(pTHX) | |
1005 | { | |
1006 | register XPVMG* xpvmg; | |
1007 | register XPVMG* xpvmgend; | |
612f20c3 GS |
1008 | New(719, xpvmg, 1008/sizeof(XPVMG), XPVMG); |
1009 | xpvmg->xpv_pv = (char*)PL_xpvmg_arenaroot; | |
1010 | PL_xpvmg_arenaroot = xpvmg; | |
1011 | ||
932e9ff9 | 1012 | xpvmgend = &xpvmg[1008 / sizeof(XPVMG) - 1]; |
612f20c3 | 1013 | PL_xpvmg_root = ++xpvmg; |
932e9ff9 VB |
1014 | while (xpvmg < xpvmgend) { |
1015 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
1016 | xpvmg++; | |
1017 | } | |
1018 | xpvmg->xpv_pv = 0; | |
1019 | } | |
1020 | ||
645c22ef DM |
1021 | /* grab a new struct xpvlv from the free list, allocating more if necessary */ |
1022 | ||
932e9ff9 VB |
1023 | STATIC XPVLV* |
1024 | S_new_xpvlv(pTHX) | |
1025 | { | |
1026 | XPVLV* xpvlv; | |
1027 | LOCK_SV_MUTEX; | |
1028 | if (!PL_xpvlv_root) | |
1029 | more_xpvlv(); | |
1030 | xpvlv = PL_xpvlv_root; | |
1031 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
1032 | UNLOCK_SV_MUTEX; | |
1033 | return xpvlv; | |
1034 | } | |
1035 | ||
645c22ef DM |
1036 | /* return a struct xpvlv to the free list */ |
1037 | ||
932e9ff9 VB |
1038 | STATIC void |
1039 | S_del_xpvlv(pTHX_ XPVLV *p) | |
1040 | { | |
1041 | LOCK_SV_MUTEX; | |
1042 | p->xpv_pv = (char*)PL_xpvlv_root; | |
1043 | PL_xpvlv_root = p; | |
1044 | UNLOCK_SV_MUTEX; | |
1045 | } | |
1046 | ||
645c22ef DM |
1047 | /* allocate another arena's worth of struct xpvlv */ |
1048 | ||
932e9ff9 VB |
1049 | STATIC void |
1050 | S_more_xpvlv(pTHX) | |
1051 | { | |
1052 | register XPVLV* xpvlv; | |
1053 | register XPVLV* xpvlvend; | |
612f20c3 GS |
1054 | New(720, xpvlv, 1008/sizeof(XPVLV), XPVLV); |
1055 | xpvlv->xpv_pv = (char*)PL_xpvlv_arenaroot; | |
1056 | PL_xpvlv_arenaroot = xpvlv; | |
1057 | ||
932e9ff9 | 1058 | xpvlvend = &xpvlv[1008 / sizeof(XPVLV) - 1]; |
612f20c3 | 1059 | PL_xpvlv_root = ++xpvlv; |
932e9ff9 VB |
1060 | while (xpvlv < xpvlvend) { |
1061 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
1062 | xpvlv++; | |
1063 | } | |
1064 | xpvlv->xpv_pv = 0; | |
1065 | } | |
1066 | ||
645c22ef DM |
1067 | /* grab a new struct xpvbm from the free list, allocating more if necessary */ |
1068 | ||
932e9ff9 VB |
1069 | STATIC XPVBM* |
1070 | S_new_xpvbm(pTHX) | |
1071 | { | |
1072 | XPVBM* xpvbm; | |
1073 | LOCK_SV_MUTEX; | |
1074 | if (!PL_xpvbm_root) | |
1075 | more_xpvbm(); | |
1076 | xpvbm = PL_xpvbm_root; | |
1077 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
1078 | UNLOCK_SV_MUTEX; | |
1079 | return xpvbm; | |
1080 | } | |
1081 | ||
645c22ef DM |
1082 | /* return a struct xpvbm to the free list */ |
1083 | ||
932e9ff9 VB |
1084 | STATIC void |
1085 | S_del_xpvbm(pTHX_ XPVBM *p) | |
1086 | { | |
1087 | LOCK_SV_MUTEX; | |
1088 | p->xpv_pv = (char*)PL_xpvbm_root; | |
1089 | PL_xpvbm_root = p; | |
1090 | UNLOCK_SV_MUTEX; | |
1091 | } | |
1092 | ||
645c22ef DM |
1093 | /* allocate another arena's worth of struct xpvbm */ |
1094 | ||
932e9ff9 VB |
1095 | STATIC void |
1096 | S_more_xpvbm(pTHX) | |
1097 | { | |
1098 | register XPVBM* xpvbm; | |
1099 | register XPVBM* xpvbmend; | |
612f20c3 GS |
1100 | New(721, xpvbm, 1008/sizeof(XPVBM), XPVBM); |
1101 | xpvbm->xpv_pv = (char*)PL_xpvbm_arenaroot; | |
1102 | PL_xpvbm_arenaroot = xpvbm; | |
1103 | ||
932e9ff9 | 1104 | xpvbmend = &xpvbm[1008 / sizeof(XPVBM) - 1]; |
612f20c3 | 1105 | PL_xpvbm_root = ++xpvbm; |
932e9ff9 VB |
1106 | while (xpvbm < xpvbmend) { |
1107 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
1108 | xpvbm++; | |
1109 | } | |
1110 | xpvbm->xpv_pv = 0; | |
1111 | } | |
1112 | ||
d33b2eba GS |
1113 | #ifdef LEAKTEST |
1114 | # define my_safemalloc(s) (void*)safexmalloc(717,s) | |
1115 | # define my_safefree(p) safexfree((char*)p) | |
1116 | #else | |
1117 | # define my_safemalloc(s) (void*)safemalloc(s) | |
1118 | # define my_safefree(p) safefree((char*)p) | |
1119 | #endif | |
463ee0b2 | 1120 | |
d33b2eba | 1121 | #ifdef PURIFY |
463ee0b2 | 1122 | |
d33b2eba GS |
1123 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
1124 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 1125 | |
d33b2eba GS |
1126 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1127 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1128 | |
d33b2eba GS |
1129 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
1130 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 1131 | |
d33b2eba GS |
1132 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1133 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1134 | |
d33b2eba GS |
1135 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1136 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1137 | |
d33b2eba GS |
1138 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1139 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1140 | |
d33b2eba GS |
1141 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1142 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1143 | |
d33b2eba GS |
1144 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1145 | #define del_XPVAV(p) my_safefree(p) | |
1146 | ||
1147 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1148 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1149 | |
d33b2eba GS |
1150 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1151 | #define del_XPVMG(p) my_safefree(p) | |
1152 | ||
1153 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) | |
1154 | #define del_XPVLV(p) my_safefree(p) | |
1155 | ||
1156 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1157 | #define del_XPVBM(p) my_safefree(p) | |
1158 | ||
1159 | #else /* !PURIFY */ | |
1160 | ||
1161 | #define new_XIV() (void*)new_xiv() | |
1162 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
1163 | ||
1164 | #define new_XNV() (void*)new_xnv() | |
1165 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 1166 | |
d33b2eba GS |
1167 | #define new_XRV() (void*)new_xrv() |
1168 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 1169 | |
d33b2eba GS |
1170 | #define new_XPV() (void*)new_xpv() |
1171 | #define del_XPV(p) del_xpv((XPV *)p) | |
1172 | ||
1173 | #define new_XPVIV() (void*)new_xpviv() | |
1174 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
1175 | ||
1176 | #define new_XPVNV() (void*)new_xpvnv() | |
1177 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
1178 | ||
1179 | #define new_XPVCV() (void*)new_xpvcv() | |
1180 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
1181 | ||
1182 | #define new_XPVAV() (void*)new_xpvav() | |
1183 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
1184 | ||
1185 | #define new_XPVHV() (void*)new_xpvhv() | |
1186 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
1c846c1f | 1187 | |
d33b2eba GS |
1188 | #define new_XPVMG() (void*)new_xpvmg() |
1189 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
1190 | ||
1191 | #define new_XPVLV() (void*)new_xpvlv() | |
1192 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
1193 | ||
1194 | #define new_XPVBM() (void*)new_xpvbm() | |
1195 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
1196 | ||
1197 | #endif /* PURIFY */ | |
9b94d1dd | 1198 | |
d33b2eba GS |
1199 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1200 | #define del_XPVGV(p) my_safefree(p) | |
1c846c1f | 1201 | |
d33b2eba GS |
1202 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1203 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1204 | |
d33b2eba GS |
1205 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1206 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1207 | |
954c1994 GS |
1208 | /* |
1209 | =for apidoc sv_upgrade | |
1210 | ||
ff276b08 | 1211 | Upgrade an SV to a more complex form. Generally adds a new body type to the |
645c22ef | 1212 | SV, then copies across as much information as possible from the old body. |
ff276b08 | 1213 | You generally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. |
954c1994 GS |
1214 | |
1215 | =cut | |
1216 | */ | |
1217 | ||
79072805 | 1218 | bool |
864dbfa3 | 1219 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 LW |
1220 | { |
1221 | char* pv; | |
1222 | U32 cur; | |
1223 | U32 len; | |
a0d0e21e | 1224 | IV iv; |
65202027 | 1225 | NV nv; |
79072805 LW |
1226 | MAGIC* magic; |
1227 | HV* stash; | |
1228 | ||
f130fd45 NIS |
1229 | if (mt != SVt_PV && SvREADONLY(sv) && SvFAKE(sv)) { |
1230 | sv_force_normal(sv); | |
1231 | } | |
1232 | ||
79072805 LW |
1233 | if (SvTYPE(sv) == mt) |
1234 | return TRUE; | |
1235 | ||
a5f75d66 AD |
1236 | if (mt < SVt_PVIV) |
1237 | (void)SvOOK_off(sv); | |
1238 | ||
79072805 LW |
1239 | switch (SvTYPE(sv)) { |
1240 | case SVt_NULL: | |
1241 | pv = 0; | |
1242 | cur = 0; | |
1243 | len = 0; | |
1244 | iv = 0; | |
1245 | nv = 0.0; | |
1246 | magic = 0; | |
1247 | stash = 0; | |
1248 | break; | |
79072805 LW |
1249 | case SVt_IV: |
1250 | pv = 0; | |
1251 | cur = 0; | |
1252 | len = 0; | |
463ee0b2 | 1253 | iv = SvIVX(sv); |
65202027 | 1254 | nv = (NV)SvIVX(sv); |
79072805 LW |
1255 | del_XIV(SvANY(sv)); |
1256 | magic = 0; | |
1257 | stash = 0; | |
ed6116ce | 1258 | if (mt == SVt_NV) |
463ee0b2 | 1259 | mt = SVt_PVNV; |
ed6116ce LW |
1260 | else if (mt < SVt_PVIV) |
1261 | mt = SVt_PVIV; | |
79072805 LW |
1262 | break; |
1263 | case SVt_NV: | |
1264 | pv = 0; | |
1265 | cur = 0; | |
1266 | len = 0; | |
463ee0b2 | 1267 | nv = SvNVX(sv); |
1bd302c3 | 1268 | iv = I_V(nv); |
79072805 LW |
1269 | magic = 0; |
1270 | stash = 0; | |
1271 | del_XNV(SvANY(sv)); | |
1272 | SvANY(sv) = 0; | |
ed6116ce | 1273 | if (mt < SVt_PVNV) |
79072805 LW |
1274 | mt = SVt_PVNV; |
1275 | break; | |
ed6116ce LW |
1276 | case SVt_RV: |
1277 | pv = (char*)SvRV(sv); | |
1278 | cur = 0; | |
1279 | len = 0; | |
56431972 RB |
1280 | iv = PTR2IV(pv); |
1281 | nv = PTR2NV(pv); | |
ed6116ce LW |
1282 | del_XRV(SvANY(sv)); |
1283 | magic = 0; | |
1284 | stash = 0; | |
1285 | break; | |
79072805 | 1286 | case SVt_PV: |
463ee0b2 | 1287 | pv = SvPVX(sv); |
79072805 LW |
1288 | cur = SvCUR(sv); |
1289 | len = SvLEN(sv); | |
1290 | iv = 0; | |
1291 | nv = 0.0; | |
1292 | magic = 0; | |
1293 | stash = 0; | |
1294 | del_XPV(SvANY(sv)); | |
748a9306 LW |
1295 | if (mt <= SVt_IV) |
1296 | mt = SVt_PVIV; | |
1297 | else if (mt == SVt_NV) | |
1298 | mt = SVt_PVNV; | |
79072805 LW |
1299 | break; |
1300 | case SVt_PVIV: | |
463ee0b2 | 1301 | pv = SvPVX(sv); |
79072805 LW |
1302 | cur = SvCUR(sv); |
1303 | len = SvLEN(sv); | |
463ee0b2 | 1304 | iv = SvIVX(sv); |
79072805 LW |
1305 | nv = 0.0; |
1306 | magic = 0; | |
1307 | stash = 0; | |
1308 | del_XPVIV(SvANY(sv)); | |
1309 | break; | |
1310 | case SVt_PVNV: | |
463ee0b2 | 1311 | pv = SvPVX(sv); |
79072805 LW |
1312 | cur = SvCUR(sv); |
1313 | len = SvLEN(sv); | |
463ee0b2 LW |
1314 | iv = SvIVX(sv); |
1315 | nv = SvNVX(sv); | |
79072805 LW |
1316 | magic = 0; |
1317 | stash = 0; | |
1318 | del_XPVNV(SvANY(sv)); | |
1319 | break; | |
1320 | case SVt_PVMG: | |
463ee0b2 | 1321 | pv = SvPVX(sv); |
79072805 LW |
1322 | cur = SvCUR(sv); |
1323 | len = SvLEN(sv); | |
463ee0b2 LW |
1324 | iv = SvIVX(sv); |
1325 | nv = SvNVX(sv); | |
79072805 LW |
1326 | magic = SvMAGIC(sv); |
1327 | stash = SvSTASH(sv); | |
1328 | del_XPVMG(SvANY(sv)); | |
1329 | break; | |
1330 | default: | |
cea2e8a9 | 1331 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1332 | } |
1333 | ||
1334 | switch (mt) { | |
1335 | case SVt_NULL: | |
cea2e8a9 | 1336 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1337 | case SVt_IV: |
1338 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 1339 | SvIVX(sv) = iv; |
79072805 LW |
1340 | break; |
1341 | case SVt_NV: | |
1342 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 1343 | SvNVX(sv) = nv; |
79072805 | 1344 | break; |
ed6116ce LW |
1345 | case SVt_RV: |
1346 | SvANY(sv) = new_XRV(); | |
1347 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 1348 | break; |
79072805 LW |
1349 | case SVt_PV: |
1350 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 1351 | SvPVX(sv) = pv; |
79072805 LW |
1352 | SvCUR(sv) = cur; |
1353 | SvLEN(sv) = len; | |
1354 | break; | |
1355 | case SVt_PVIV: | |
1356 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 1357 | SvPVX(sv) = pv; |
79072805 LW |
1358 | SvCUR(sv) = cur; |
1359 | SvLEN(sv) = len; | |
463ee0b2 | 1360 | SvIVX(sv) = iv; |
79072805 | 1361 | if (SvNIOK(sv)) |
a0d0e21e | 1362 | (void)SvIOK_on(sv); |
79072805 LW |
1363 | SvNOK_off(sv); |
1364 | break; | |
1365 | case SVt_PVNV: | |
1366 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 1367 | SvPVX(sv) = pv; |
79072805 LW |
1368 | SvCUR(sv) = cur; |
1369 | SvLEN(sv) = len; | |
463ee0b2 LW |
1370 | SvIVX(sv) = iv; |
1371 | SvNVX(sv) = nv; | |
79072805 LW |
1372 | break; |
1373 | case SVt_PVMG: | |
1374 | SvANY(sv) = new_XPVMG(); | |
463ee0b2 | 1375 | SvPVX(sv) = pv; |
79072805 LW |
1376 | SvCUR(sv) = cur; |
1377 | SvLEN(sv) = len; | |
463ee0b2 LW |
1378 | SvIVX(sv) = iv; |
1379 | SvNVX(sv) = nv; | |
79072805 LW |
1380 | SvMAGIC(sv) = magic; |
1381 | SvSTASH(sv) = stash; | |
1382 | break; | |
1383 | case SVt_PVLV: | |
1384 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 1385 | SvPVX(sv) = pv; |
79072805 LW |
1386 | SvCUR(sv) = cur; |
1387 | SvLEN(sv) = len; | |
463ee0b2 LW |
1388 | SvIVX(sv) = iv; |
1389 | SvNVX(sv) = nv; | |
79072805 LW |
1390 | SvMAGIC(sv) = magic; |
1391 | SvSTASH(sv) = stash; | |
1392 | LvTARGOFF(sv) = 0; | |
1393 | LvTARGLEN(sv) = 0; | |
1394 | LvTARG(sv) = 0; | |
1395 | LvTYPE(sv) = 0; | |
1396 | break; | |
1397 | case SVt_PVAV: | |
1398 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
1399 | if (pv) |
1400 | Safefree(pv); | |
2304df62 | 1401 | SvPVX(sv) = 0; |
d1bf51dd | 1402 | AvMAX(sv) = -1; |
93965878 | 1403 | AvFILLp(sv) = -1; |
463ee0b2 LW |
1404 | SvIVX(sv) = 0; |
1405 | SvNVX(sv) = 0.0; | |
1406 | SvMAGIC(sv) = magic; | |
1407 | SvSTASH(sv) = stash; | |
1408 | AvALLOC(sv) = 0; | |
79072805 LW |
1409 | AvARYLEN(sv) = 0; |
1410 | AvFLAGS(sv) = 0; | |
1411 | break; | |
1412 | case SVt_PVHV: | |
1413 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1414 | if (pv) |
1415 | Safefree(pv); | |
1416 | SvPVX(sv) = 0; | |
1417 | HvFILL(sv) = 0; | |
1418 | HvMAX(sv) = 0; | |
1419 | HvKEYS(sv) = 0; | |
1420 | SvNVX(sv) = 0.0; | |
79072805 LW |
1421 | SvMAGIC(sv) = magic; |
1422 | SvSTASH(sv) = stash; | |
79072805 LW |
1423 | HvRITER(sv) = 0; |
1424 | HvEITER(sv) = 0; | |
1425 | HvPMROOT(sv) = 0; | |
1426 | HvNAME(sv) = 0; | |
79072805 LW |
1427 | break; |
1428 | case SVt_PVCV: | |
1429 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1430 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 1431 | SvPVX(sv) = pv; |
79072805 LW |
1432 | SvCUR(sv) = cur; |
1433 | SvLEN(sv) = len; | |
463ee0b2 LW |
1434 | SvIVX(sv) = iv; |
1435 | SvNVX(sv) = nv; | |
79072805 LW |
1436 | SvMAGIC(sv) = magic; |
1437 | SvSTASH(sv) = stash; | |
79072805 LW |
1438 | break; |
1439 | case SVt_PVGV: | |
1440 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 1441 | SvPVX(sv) = pv; |
79072805 LW |
1442 | SvCUR(sv) = cur; |
1443 | SvLEN(sv) = len; | |
463ee0b2 LW |
1444 | SvIVX(sv) = iv; |
1445 | SvNVX(sv) = nv; | |
79072805 LW |
1446 | SvMAGIC(sv) = magic; |
1447 | SvSTASH(sv) = stash; | |
93a17b20 | 1448 | GvGP(sv) = 0; |
79072805 LW |
1449 | GvNAME(sv) = 0; |
1450 | GvNAMELEN(sv) = 0; | |
1451 | GvSTASH(sv) = 0; | |
a5f75d66 | 1452 | GvFLAGS(sv) = 0; |
79072805 LW |
1453 | break; |
1454 | case SVt_PVBM: | |
1455 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 1456 | SvPVX(sv) = pv; |
79072805 LW |
1457 | SvCUR(sv) = cur; |
1458 | SvLEN(sv) = len; | |
463ee0b2 LW |
1459 | SvIVX(sv) = iv; |
1460 | SvNVX(sv) = nv; | |
79072805 LW |
1461 | SvMAGIC(sv) = magic; |
1462 | SvSTASH(sv) = stash; | |
1463 | BmRARE(sv) = 0; | |
1464 | BmUSEFUL(sv) = 0; | |
1465 | BmPREVIOUS(sv) = 0; | |
1466 | break; | |
1467 | case SVt_PVFM: | |
1468 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1469 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 1470 | SvPVX(sv) = pv; |
79072805 LW |
1471 | SvCUR(sv) = cur; |
1472 | SvLEN(sv) = len; | |
463ee0b2 LW |
1473 | SvIVX(sv) = iv; |
1474 | SvNVX(sv) = nv; | |
79072805 LW |
1475 | SvMAGIC(sv) = magic; |
1476 | SvSTASH(sv) = stash; | |
79072805 | 1477 | break; |
8990e307 LW |
1478 | case SVt_PVIO: |
1479 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1480 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
1481 | SvPVX(sv) = pv; |
1482 | SvCUR(sv) = cur; | |
1483 | SvLEN(sv) = len; | |
1484 | SvIVX(sv) = iv; | |
1485 | SvNVX(sv) = nv; | |
1486 | SvMAGIC(sv) = magic; | |
1487 | SvSTASH(sv) = stash; | |
85e6fe83 | 1488 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1489 | break; |
1490 | } | |
1491 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
1492 | SvFLAGS(sv) |= mt; | |
79072805 LW |
1493 | return TRUE; |
1494 | } | |
1495 | ||
645c22ef DM |
1496 | /* |
1497 | =for apidoc sv_backoff | |
1498 | ||
1499 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1500 | wrapper instead. | |
1501 | ||
1502 | =cut | |
1503 | */ | |
1504 | ||
79072805 | 1505 | int |
864dbfa3 | 1506 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1507 | { |
1508 | assert(SvOOK(sv)); | |
463ee0b2 LW |
1509 | if (SvIVX(sv)) { |
1510 | char *s = SvPVX(sv); | |
1511 | SvLEN(sv) += SvIVX(sv); | |
1512 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 1513 | SvIV_set(sv, 0); |
463ee0b2 | 1514 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1515 | } |
1516 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1517 | return 0; |
79072805 LW |
1518 | } |
1519 | ||
954c1994 GS |
1520 | /* |
1521 | =for apidoc sv_grow | |
1522 | ||
645c22ef DM |
1523 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1524 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1525 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1526 | |
1527 | =cut | |
1528 | */ | |
1529 | ||
79072805 | 1530 | char * |
864dbfa3 | 1531 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1532 | { |
1533 | register char *s; | |
1534 | ||
55497cff | 1535 | #ifdef HAS_64K_LIMIT |
79072805 | 1536 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1537 | PerlIO_printf(Perl_debug_log, |
1538 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1539 | my_exit(1); |
1540 | } | |
55497cff | 1541 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1542 | if (SvROK(sv)) |
1543 | sv_unref(sv); | |
79072805 LW |
1544 | if (SvTYPE(sv) < SVt_PV) { |
1545 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 1546 | s = SvPVX(sv); |
79072805 LW |
1547 | } |
1548 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1549 | sv_backoff(sv); | |
463ee0b2 | 1550 | s = SvPVX(sv); |
79072805 LW |
1551 | if (newlen > SvLEN(sv)) |
1552 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1553 | #ifdef HAS_64K_LIMIT |
1554 | if (newlen >= 0x10000) | |
1555 | newlen = 0xFFFF; | |
1556 | #endif | |
79072805 LW |
1557 | } |
1558 | else | |
463ee0b2 | 1559 | s = SvPVX(sv); |
79072805 | 1560 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 1561 | if (SvLEN(sv) && s) { |
f5a32c7f | 1562 | #if defined(MYMALLOC) && !defined(LEAKTEST) |
8d6dde3e IZ |
1563 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
1564 | if (newlen <= l) { | |
1565 | SvLEN_set(sv, l); | |
1566 | return s; | |
1567 | } else | |
c70c8a0a | 1568 | #endif |
79072805 | 1569 | Renew(s,newlen,char); |
8d6dde3e | 1570 | } |
79072805 LW |
1571 | else |
1572 | New(703,s,newlen,char); | |
1573 | SvPV_set(sv, s); | |
1574 | SvLEN_set(sv, newlen); | |
1575 | } | |
1576 | return s; | |
1577 | } | |
1578 | ||
954c1994 GS |
1579 | /* |
1580 | =for apidoc sv_setiv | |
1581 | ||
645c22ef DM |
1582 | Copies an integer into the given SV, upgrading first if necessary. |
1583 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1584 | |
1585 | =cut | |
1586 | */ | |
1587 | ||
79072805 | 1588 | void |
864dbfa3 | 1589 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1590 | { |
2213622d | 1591 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
1592 | switch (SvTYPE(sv)) { |
1593 | case SVt_NULL: | |
79072805 | 1594 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1595 | break; |
1596 | case SVt_NV: | |
1597 | sv_upgrade(sv, SVt_PVNV); | |
1598 | break; | |
ed6116ce | 1599 | case SVt_RV: |
463ee0b2 | 1600 | case SVt_PV: |
79072805 | 1601 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1602 | break; |
a0d0e21e LW |
1603 | |
1604 | case SVt_PVGV: | |
a0d0e21e LW |
1605 | case SVt_PVAV: |
1606 | case SVt_PVHV: | |
1607 | case SVt_PVCV: | |
1608 | case SVt_PVFM: | |
1609 | case SVt_PVIO: | |
411caa50 JH |
1610 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
1611 | PL_op_desc[PL_op->op_type]); | |
463ee0b2 | 1612 | } |
a0d0e21e | 1613 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1614 | SvIVX(sv) = i; |
463ee0b2 | 1615 | SvTAINT(sv); |
79072805 LW |
1616 | } |
1617 | ||
954c1994 GS |
1618 | /* |
1619 | =for apidoc sv_setiv_mg | |
1620 | ||
1621 | Like C<sv_setiv>, but also handles 'set' magic. | |
1622 | ||
1623 | =cut | |
1624 | */ | |
1625 | ||
79072805 | 1626 | void |
864dbfa3 | 1627 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1628 | { |
1629 | sv_setiv(sv,i); | |
1630 | SvSETMAGIC(sv); | |
1631 | } | |
1632 | ||
954c1994 GS |
1633 | /* |
1634 | =for apidoc sv_setuv | |
1635 | ||
645c22ef DM |
1636 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1637 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1638 | |
1639 | =cut | |
1640 | */ | |
1641 | ||
ef50df4b | 1642 | void |
864dbfa3 | 1643 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1644 | { |
55ada374 NC |
1645 | /* With these two if statements: |
1646 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1647 | |
55ada374 NC |
1648 | without |
1649 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1650 | |
55ada374 NC |
1651 | If you wish to remove them, please benchmark to see what the effect is |
1652 | */ | |
28e5dec8 JH |
1653 | if (u <= (UV)IV_MAX) { |
1654 | sv_setiv(sv, (IV)u); | |
1655 | return; | |
1656 | } | |
25da4f38 IZ |
1657 | sv_setiv(sv, 0); |
1658 | SvIsUV_on(sv); | |
1659 | SvUVX(sv) = u; | |
55497cff | 1660 | } |
1661 | ||
954c1994 GS |
1662 | /* |
1663 | =for apidoc sv_setuv_mg | |
1664 | ||
1665 | Like C<sv_setuv>, but also handles 'set' magic. | |
1666 | ||
1667 | =cut | |
1668 | */ | |
1669 | ||
55497cff | 1670 | void |
864dbfa3 | 1671 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1672 | { |
55ada374 NC |
1673 | /* With these two if statements: |
1674 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1675 | |
55ada374 NC |
1676 | without |
1677 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1678 | |
55ada374 NC |
1679 | If you wish to remove them, please benchmark to see what the effect is |
1680 | */ | |
28e5dec8 JH |
1681 | if (u <= (UV)IV_MAX) { |
1682 | sv_setiv(sv, (IV)u); | |
1683 | } else { | |
1684 | sv_setiv(sv, 0); | |
1685 | SvIsUV_on(sv); | |
1686 | sv_setuv(sv,u); | |
1687 | } | |
ef50df4b GS |
1688 | SvSETMAGIC(sv); |
1689 | } | |
1690 | ||
954c1994 GS |
1691 | /* |
1692 | =for apidoc sv_setnv | |
1693 | ||
645c22ef DM |
1694 | Copies a double into the given SV, upgrading first if necessary. |
1695 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1696 | |
1697 | =cut | |
1698 | */ | |
1699 | ||
ef50df4b | 1700 | void |
65202027 | 1701 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1702 | { |
2213622d | 1703 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1704 | switch (SvTYPE(sv)) { |
1705 | case SVt_NULL: | |
1706 | case SVt_IV: | |
79072805 | 1707 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1708 | break; |
a0d0e21e LW |
1709 | case SVt_RV: |
1710 | case SVt_PV: | |
1711 | case SVt_PVIV: | |
79072805 | 1712 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1713 | break; |
827b7e14 | 1714 | |
a0d0e21e | 1715 | case SVt_PVGV: |
a0d0e21e LW |
1716 | case SVt_PVAV: |
1717 | case SVt_PVHV: | |
1718 | case SVt_PVCV: | |
1719 | case SVt_PVFM: | |
1720 | case SVt_PVIO: | |
411caa50 JH |
1721 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
1722 | PL_op_name[PL_op->op_type]); | |
79072805 | 1723 | } |
463ee0b2 | 1724 | SvNVX(sv) = num; |
a0d0e21e | 1725 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1726 | SvTAINT(sv); |
79072805 LW |
1727 | } |
1728 | ||
954c1994 GS |
1729 | /* |
1730 | =for apidoc sv_setnv_mg | |
1731 | ||
1732 | Like C<sv_setnv>, but also handles 'set' magic. | |
1733 | ||
1734 | =cut | |
1735 | */ | |
1736 | ||
ef50df4b | 1737 | void |
65202027 | 1738 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1739 | { |
1740 | sv_setnv(sv,num); | |
1741 | SvSETMAGIC(sv); | |
1742 | } | |
1743 | ||
645c22ef DM |
1744 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1745 | * printable version of the offending string | |
1746 | */ | |
1747 | ||
76e3520e | 1748 | STATIC void |
cea2e8a9 | 1749 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e LW |
1750 | { |
1751 | char tmpbuf[64]; | |
1752 | char *d = tmpbuf; | |
dc28f22b GA |
1753 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; |
1754 | /* each *s can expand to 4 chars + "...\0", | |
1755 | i.e. need room for 8 chars */ | |
a0d0e21e | 1756 | |
59bb5845 RB |
1757 | char *s, *end; |
1758 | for (s = SvPVX(sv), end = s + SvCUR(sv); s < end && d < limit; s++) { | |
bbce6d69 | 1759 | int ch = *s & 0xFF; |
1760 | if (ch & 128 && !isPRINT_LC(ch)) { | |
a0d0e21e LW |
1761 | *d++ = 'M'; |
1762 | *d++ = '-'; | |
1763 | ch &= 127; | |
1764 | } | |
bbce6d69 | 1765 | if (ch == '\n') { |
1766 | *d++ = '\\'; | |
1767 | *d++ = 'n'; | |
1768 | } | |
1769 | else if (ch == '\r') { | |
1770 | *d++ = '\\'; | |
1771 | *d++ = 'r'; | |
1772 | } | |
1773 | else if (ch == '\f') { | |
1774 | *d++ = '\\'; | |
1775 | *d++ = 'f'; | |
1776 | } | |
1777 | else if (ch == '\\') { | |
1778 | *d++ = '\\'; | |
1779 | *d++ = '\\'; | |
1780 | } | |
59bb5845 RB |
1781 | else if (ch == '\0') { |
1782 | *d++ = '\\'; | |
1783 | *d++ = '0'; | |
1784 | } | |
bbce6d69 | 1785 | else if (isPRINT_LC(ch)) |
a0d0e21e LW |
1786 | *d++ = ch; |
1787 | else { | |
1788 | *d++ = '^'; | |
bbce6d69 | 1789 | *d++ = toCTRL(ch); |
a0d0e21e LW |
1790 | } |
1791 | } | |
e71c6625 | 1792 | if (s < end) { |
a0d0e21e LW |
1793 | *d++ = '.'; |
1794 | *d++ = '.'; | |
1795 | *d++ = '.'; | |
1796 | } | |
1797 | *d = '\0'; | |
1798 | ||
533c011a | 1799 | if (PL_op) |
42d38218 MS |
1800 | Perl_warner(aTHX_ WARN_NUMERIC, |
1801 | "Argument \"%s\" isn't numeric in %s", tmpbuf, | |
1802 | PL_op_desc[PL_op->op_type]); | |
a0d0e21e | 1803 | else |
42d38218 MS |
1804 | Perl_warner(aTHX_ WARN_NUMERIC, |
1805 | "Argument \"%s\" isn't numeric", tmpbuf); | |
a0d0e21e LW |
1806 | } |
1807 | ||
c2988b20 NC |
1808 | /* |
1809 | =for apidoc looks_like_number | |
1810 | ||
645c22ef DM |
1811 | Test if the content of an SV looks like a number (or is a number). |
1812 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1813 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1814 | |
1815 | =cut | |
1816 | */ | |
1817 | ||
1818 | I32 | |
1819 | Perl_looks_like_number(pTHX_ SV *sv) | |
1820 | { | |
1821 | register char *sbegin; | |
1822 | STRLEN len; | |
1823 | ||
1824 | if (SvPOK(sv)) { | |
1825 | sbegin = SvPVX(sv); | |
1826 | len = SvCUR(sv); | |
1827 | } | |
1828 | else if (SvPOKp(sv)) | |
1829 | sbegin = SvPV(sv, len); | |
1830 | else | |
1831 | return 1; /* Historic. Wrong? */ | |
1832 | return grok_number(sbegin, len, NULL); | |
1833 | } | |
25da4f38 IZ |
1834 | |
1835 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1836 | until proven guilty, assume that things are not that bad... */ | |
1837 | ||
645c22ef DM |
1838 | /* |
1839 | NV_PRESERVES_UV: | |
1840 | ||
1841 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
1842 | an IV (an assumption perl has been based on to date) it becomes necessary |
1843 | to remove the assumption that the NV always carries enough precision to | |
1844 | recreate the IV whenever needed, and that the NV is the canonical form. | |
1845 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 1846 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
1847 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
1848 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
1849 | conversion where precision was lost and IV/UV/NV slots that have a | |
1850 | valid conversion which has lost no precision | |
645c22ef | 1851 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
1852 | would lose precision, the precise conversion (or differently |
1853 | imprecise conversion) is also performed and cached, to prevent | |
1854 | requests for different numeric formats on the same SV causing | |
1855 | lossy conversion chains. (lossless conversion chains are perfectly | |
1856 | acceptable (still)) | |
1857 | ||
1858 | ||
1859 | flags are used: | |
1860 | SvIOKp is true if the IV slot contains a valid value | |
1861 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
1862 | SvNOKp is true if the NV slot contains a valid value | |
1863 | SvNOK is true only if the NV value is accurate | |
1864 | ||
1865 | so | |
645c22ef | 1866 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
1867 | IV(or UV) would lose accuracy over a direct conversion from PV to |
1868 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
1869 | SV as IOK NOKp (ie not NOK). | |
1870 | ||
645c22ef | 1871 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
1872 | NV would lose accuracy over a direct conversion from PV to NV. If it |
1873 | would, cache both conversions, flag similarly. | |
1874 | ||
1875 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
1876 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
1877 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
1878 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 1879 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 1880 | |
645c22ef DM |
1881 | The benefit of this is that operations such as pp_add know that if |
1882 | SvIOK is true for both left and right operands, then integer addition | |
1883 | can be used instead of floating point (for cases where the result won't | |
1884 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
1885 | loss of precision compared with integer addition. |
1886 | ||
1887 | * making IV and NV equal status should make maths accurate on 64 bit | |
1888 | platforms | |
1889 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 1890 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
1891 | looking for SvIOK and checking for overflow will not outweigh the |
1892 | fp to integer speedup) | |
1893 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
1894 | values, as the change from SvIOK to SvIOKp will cause a call into | |
1895 | sv_2iv each time rather than a macro access direct to the IV slot | |
1896 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 1897 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
1898 | |
1899 | #################################################################### | |
645c22ef DM |
1900 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
1901 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
1902 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
1903 | #################################################################### |
1904 | ||
645c22ef | 1905 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
1906 | performance ratio. |
1907 | */ | |
1908 | ||
1909 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
1910 | # define IS_NUMBER_UNDERFLOW_IV 1 |
1911 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
1912 | # define IS_NUMBER_IV_AND_UV 2 | |
1913 | # define IS_NUMBER_OVERFLOW_IV 4 | |
1914 | # define IS_NUMBER_OVERFLOW_UV 5 | |
1915 | ||
1916 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
1917 | |
1918 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
1919 | STATIC int | |
645c22ef | 1920 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 1921 | { |
159fae86 | 1922 | 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 |
1923 | if (SvNVX(sv) < (NV)IV_MIN) { |
1924 | (void)SvIOKp_on(sv); | |
1925 | (void)SvNOK_on(sv); | |
1926 | SvIVX(sv) = IV_MIN; | |
1927 | return IS_NUMBER_UNDERFLOW_IV; | |
1928 | } | |
1929 | if (SvNVX(sv) > (NV)UV_MAX) { | |
1930 | (void)SvIOKp_on(sv); | |
1931 | (void)SvNOK_on(sv); | |
1932 | SvIsUV_on(sv); | |
1933 | SvUVX(sv) = UV_MAX; | |
1934 | return IS_NUMBER_OVERFLOW_UV; | |
1935 | } | |
c2988b20 NC |
1936 | (void)SvIOKp_on(sv); |
1937 | (void)SvNOK_on(sv); | |
1938 | /* Can't use strtol etc to convert this string. (See truth table in | |
1939 | sv_2iv */ | |
1940 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
1941 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1942 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
1943 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
1944 | } else { | |
1945 | /* Integer is imprecise. NOK, IOKp */ | |
1946 | } | |
1947 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
1948 | } | |
1949 | SvIsUV_on(sv); | |
1950 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1951 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
1952 | if (SvUVX(sv) == UV_MAX) { | |
1953 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
1954 | possibly be preserved by NV. Hence, it must be overflow. | |
1955 | NOK, IOKp */ | |
1956 | return IS_NUMBER_OVERFLOW_UV; | |
1957 | } | |
1958 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
1959 | } else { | |
1960 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 1961 | } |
c2988b20 | 1962 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 1963 | } |
645c22ef DM |
1964 | #endif /* !NV_PRESERVES_UV*/ |
1965 | ||
1966 | /* | |
1967 | =for apidoc sv_2iv | |
1968 | ||
1969 | Return the integer value of an SV, doing any necessary string conversion, | |
1970 | magic etc. Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
1971 | ||
1972 | =cut | |
1973 | */ | |
28e5dec8 | 1974 | |
a0d0e21e | 1975 | IV |
864dbfa3 | 1976 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
1977 | { |
1978 | if (!sv) | |
1979 | return 0; | |
8990e307 | 1980 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1981 | mg_get(sv); |
1982 | if (SvIOKp(sv)) | |
1983 | return SvIVX(sv); | |
748a9306 | 1984 | if (SvNOKp(sv)) { |
25da4f38 | 1985 | return I_V(SvNVX(sv)); |
748a9306 | 1986 | } |
36477c24 | 1987 | if (SvPOKp(sv) && SvLEN(sv)) |
1988 | return asIV(sv); | |
3fe9a6f1 | 1989 | if (!SvROK(sv)) { |
d008e5eb | 1990 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 1991 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 1992 | report_uninit(); |
c6ee37c5 | 1993 | } |
36477c24 | 1994 | return 0; |
3fe9a6f1 | 1995 | } |
463ee0b2 | 1996 | } |
ed6116ce | 1997 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 1998 | if (SvROK(sv)) { |
a0d0e21e | 1999 | SV* tmpstr; |
1554e226 | 2000 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2001 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2002 | return SvIV(tmpstr); |
56431972 | 2003 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2004 | } |
47deb5e7 NIS |
2005 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2006 | sv_force_normal(sv); | |
2007 | } | |
0336b60e | 2008 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2009 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2010 | report_uninit(); |
ed6116ce LW |
2011 | return 0; |
2012 | } | |
79072805 | 2013 | } |
25da4f38 IZ |
2014 | if (SvIOKp(sv)) { |
2015 | if (SvIsUV(sv)) { | |
2016 | return (IV)(SvUVX(sv)); | |
2017 | } | |
2018 | else { | |
2019 | return SvIVX(sv); | |
2020 | } | |
463ee0b2 | 2021 | } |
748a9306 | 2022 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2023 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2024 | * without also getting a cached IV/UV from it at the same time | |
2025 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2026 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2027 | |
2028 | if (SvTYPE(sv) == SVt_NV) | |
2029 | sv_upgrade(sv, SVt_PVNV); | |
2030 | ||
28e5dec8 JH |
2031 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2032 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2033 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2034 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2035 | cases go to UV */ | |
2036 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
748a9306 | 2037 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2038 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2039 | #ifndef NV_PRESERVES_UV | |
2040 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2041 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2042 | /* Don't flag it as "accurately an integer" if the number | |
2043 | came from a (by definition imprecise) NV operation, and | |
2044 | we're outside the range of NV integer precision */ | |
2045 | #endif | |
2046 | ) { | |
2047 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2048 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
2049 | "0x%"UVxf" iv(%g => %"IVdf") (precise)\n", | |
2050 | PTR2UV(sv), | |
2051 | SvNVX(sv), | |
2052 | SvIVX(sv))); | |
2053 | ||
2054 | } else { | |
2055 | /* IV not precise. No need to convert from PV, as NV | |
2056 | conversion would already have cached IV if it detected | |
2057 | that PV->IV would be better than PV->NV->IV | |
2058 | flags already correct - don't set public IOK. */ | |
2059 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
2060 | "0x%"UVxf" iv(%g => %"IVdf") (imprecise)\n", | |
2061 | PTR2UV(sv), | |
2062 | SvNVX(sv), | |
2063 | SvIVX(sv))); | |
2064 | } | |
2065 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2066 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2067 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2068 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2069 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2070 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2071 | Hopefully for 2s complement IV_MIN is something like | |
2072 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2073 | } |
25da4f38 | 2074 | else { |
ff68c719 | 2075 | SvUVX(sv) = U_V(SvNVX(sv)); |
28e5dec8 JH |
2076 | if ( |
2077 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2078 | #ifndef NV_PRESERVES_UV | |
2079 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2080 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2081 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2082 | /* Don't flag it as "accurately an integer" if the number | |
2083 | came from a (by definition imprecise) NV operation, and | |
2084 | we're outside the range of NV integer precision */ | |
2085 | #endif | |
2086 | ) | |
2087 | SvIOK_on(sv); | |
25da4f38 IZ |
2088 | SvIsUV_on(sv); |
2089 | ret_iv_max: | |
1c846c1f | 2090 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2091 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2092 | PTR2UV(sv), |
57def98f JH |
2093 | SvUVX(sv), |
2094 | SvUVX(sv))); | |
25da4f38 IZ |
2095 | return (IV)SvUVX(sv); |
2096 | } | |
748a9306 LW |
2097 | } |
2098 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2099 | UV value; |
2100 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2101 | /* We want to avoid a possible problem when we cache an IV which |
2102 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2103 | the same as the direct translation of the initial string |
2104 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2105 | be careful to ensure that the value with the .456 is around if the | |
2106 | NV value is requested in the future). | |
1c846c1f | 2107 | |
25da4f38 IZ |
2108 | This means that if we cache such an IV, we need to cache the |
2109 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2110 | cache the NV if we are sure it's not needed. |
25da4f38 | 2111 | */ |
16b7a9a4 | 2112 | |
c2988b20 NC |
2113 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2114 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2115 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2116 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2117 | if (SvTYPE(sv) < SVt_PVIV) |
2118 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2119 | (void)SvIOK_on(sv); |
c2988b20 NC |
2120 | } else if (SvTYPE(sv) < SVt_PVNV) |
2121 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2122 | |
c2988b20 NC |
2123 | /* If NV preserves UV then we only use the UV value if we know that |
2124 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2125 | then the value returned may have more precision than atof() will | |
2126 | return, even though value isn't perfectly accurate. */ | |
2127 | if ((numtype & (IS_NUMBER_IN_UV | |
2128 | #ifdef NV_PRESERVES_UV | |
2129 | | IS_NUMBER_NOT_INT | |
2130 | #endif | |
2131 | )) == IS_NUMBER_IN_UV) { | |
2132 | /* This won't turn off the public IOK flag if it was set above */ | |
2133 | (void)SvIOKp_on(sv); | |
2134 | ||
2135 | if (!(numtype & IS_NUMBER_NEG)) { | |
2136 | /* positive */; | |
2137 | if (value <= (UV)IV_MAX) { | |
2138 | SvIVX(sv) = (IV)value; | |
2139 | } else { | |
2140 | SvUVX(sv) = value; | |
2141 | SvIsUV_on(sv); | |
2142 | } | |
2143 | } else { | |
2144 | /* 2s complement assumption */ | |
2145 | if (value <= (UV)IV_MIN) { | |
2146 | SvIVX(sv) = -(IV)value; | |
2147 | } else { | |
2148 | /* Too negative for an IV. This is a double upgrade, but | |
2149 | I'm assuming it will be be rare. */ | |
2150 | if (SvTYPE(sv) < SVt_PVNV) | |
2151 | sv_upgrade(sv, SVt_PVNV); | |
2152 | SvNOK_on(sv); | |
2153 | SvIOK_off(sv); | |
2154 | SvIOKp_on(sv); | |
2155 | SvNVX(sv) = -(NV)value; | |
2156 | SvIVX(sv) = IV_MIN; | |
2157 | } | |
2158 | } | |
2159 | } | |
2160 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2161 | will be in the previous block to set the IV slot, and the next | |
2162 | block to set the NV slot. So no else here. */ | |
2163 | ||
2164 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2165 | != IS_NUMBER_IN_UV) { | |
2166 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
2167 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2168 | |
c2988b20 NC |
2169 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2170 | not_a_number(sv); | |
28e5dec8 | 2171 | |
65202027 | 2172 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2173 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2174 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2175 | #else |
c2988b20 NC |
2176 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%g)\n", |
2177 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2178 | #endif |
28e5dec8 JH |
2179 | |
2180 | ||
2181 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2182 | (void)SvIOKp_on(sv); |
2183 | (void)SvNOK_on(sv); | |
2184 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2185 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2186 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2187 | SvIOK_on(sv); | |
28e5dec8 | 2188 | } else { |
c2988b20 NC |
2189 | /* Integer is imprecise. NOK, IOKp */ |
2190 | } | |
2191 | /* UV will not work better than IV */ | |
2192 | } else { | |
2193 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2194 | SvIsUV_on(sv); | |
2195 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2196 | SvUVX(sv) = UV_MAX; | |
2197 | SvIsUV_on(sv); | |
2198 | } else { | |
2199 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2200 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ | |
2201 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2202 | SvIOK_on(sv); | |
28e5dec8 JH |
2203 | SvIsUV_on(sv); |
2204 | } else { | |
c2988b20 NC |
2205 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2206 | SvIsUV_on(sv); | |
28e5dec8 | 2207 | } |
28e5dec8 | 2208 | } |
c2988b20 NC |
2209 | goto ret_iv_max; |
2210 | } | |
28e5dec8 | 2211 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2212 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2213 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2214 | /* The IV slot will have been set from value returned by | |
2215 | grok_number above. The NV slot has just been set using | |
2216 | Atof. */ | |
560b0c46 | 2217 | SvNOK_on(sv); |
c2988b20 NC |
2218 | assert (SvIOKp(sv)); |
2219 | } else { | |
2220 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2221 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2222 | /* Small enough to preserve all bits. */ | |
2223 | (void)SvIOKp_on(sv); | |
2224 | SvNOK_on(sv); | |
2225 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2226 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2227 | SvIOK_on(sv); | |
2228 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2229 | this NV is in the preserved range, therefore: */ | |
2230 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2231 | < (UV)IV_MAX)) { | |
2232 | 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); | |
2233 | } | |
2234 | } else { | |
2235 | /* IN_UV NOT_INT | |
2236 | 0 0 already failed to read UV. | |
2237 | 0 1 already failed to read UV. | |
2238 | 1 0 you won't get here in this case. IV/UV | |
2239 | slot set, public IOK, Atof() unneeded. | |
2240 | 1 1 already read UV. | |
2241 | so there's no point in sv_2iuv_non_preserve() attempting | |
2242 | to use atol, strtol, strtoul etc. */ | |
2243 | if (sv_2iuv_non_preserve (sv, numtype) | |
2244 | >= IS_NUMBER_OVERFLOW_IV) | |
2245 | goto ret_iv_max; | |
2246 | } | |
2247 | } | |
28e5dec8 | 2248 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2249 | } |
28e5dec8 | 2250 | } else { |
599cee73 | 2251 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2252 | report_uninit(); |
25da4f38 IZ |
2253 | if (SvTYPE(sv) < SVt_IV) |
2254 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2255 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2256 | return 0; |
79072805 | 2257 | } |
1d7c1841 GS |
2258 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2259 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2260 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2261 | } |
2262 | ||
645c22ef DM |
2263 | /* |
2264 | =for apidoc sv_2uv | |
2265 | ||
2266 | Return the unsigned integer value of an SV, doing any necessary string | |
2267 | conversion, magic etc. Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> | |
2268 | macros. | |
2269 | ||
2270 | =cut | |
2271 | */ | |
2272 | ||
ff68c719 | 2273 | UV |
864dbfa3 | 2274 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 2275 | { |
2276 | if (!sv) | |
2277 | return 0; | |
2278 | if (SvGMAGICAL(sv)) { | |
2279 | mg_get(sv); | |
2280 | if (SvIOKp(sv)) | |
2281 | return SvUVX(sv); | |
2282 | if (SvNOKp(sv)) | |
2283 | return U_V(SvNVX(sv)); | |
36477c24 | 2284 | if (SvPOKp(sv) && SvLEN(sv)) |
2285 | return asUV(sv); | |
3fe9a6f1 | 2286 | if (!SvROK(sv)) { |
d008e5eb | 2287 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2288 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2289 | report_uninit(); |
c6ee37c5 | 2290 | } |
36477c24 | 2291 | return 0; |
3fe9a6f1 | 2292 | } |
ff68c719 | 2293 | } |
2294 | if (SvTHINKFIRST(sv)) { | |
2295 | if (SvROK(sv)) { | |
ff68c719 | 2296 | SV* tmpstr; |
1554e226 | 2297 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2298 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2299 | return SvUV(tmpstr); |
56431972 | 2300 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2301 | } |
8a818333 NIS |
2302 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2303 | sv_force_normal(sv); | |
2304 | } | |
0336b60e | 2305 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2306 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2307 | report_uninit(); |
ff68c719 | 2308 | return 0; |
2309 | } | |
2310 | } | |
25da4f38 IZ |
2311 | if (SvIOKp(sv)) { |
2312 | if (SvIsUV(sv)) { | |
2313 | return SvUVX(sv); | |
2314 | } | |
2315 | else { | |
2316 | return (UV)SvIVX(sv); | |
2317 | } | |
ff68c719 | 2318 | } |
2319 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2320 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2321 | * without also getting a cached IV/UV from it at the same time | |
2322 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2323 | * IV or UV at same time to avoid this. */ | |
2324 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2325 | ||
25da4f38 IZ |
2326 | if (SvTYPE(sv) == SVt_NV) |
2327 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2328 | |
2329 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2330 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
f7bbb42a | 2331 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2332 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2333 | #ifndef NV_PRESERVES_UV | |
2334 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2335 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2336 | /* Don't flag it as "accurately an integer" if the number | |
2337 | came from a (by definition imprecise) NV operation, and | |
2338 | we're outside the range of NV integer precision */ | |
2339 | #endif | |
2340 | ) { | |
2341 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2342 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
2343 | "0x%"UVxf" uv(%g => %"IVdf") (precise)\n", | |
2344 | PTR2UV(sv), | |
2345 | SvNVX(sv), | |
2346 | SvIVX(sv))); | |
2347 | ||
2348 | } else { | |
2349 | /* IV not precise. No need to convert from PV, as NV | |
2350 | conversion would already have cached IV if it detected | |
2351 | that PV->IV would be better than PV->NV->IV | |
2352 | flags already correct - don't set public IOK. */ | |
2353 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
2354 | "0x%"UVxf" uv(%g => %"IVdf") (imprecise)\n", | |
2355 | PTR2UV(sv), | |
2356 | SvNVX(sv), | |
2357 | SvIVX(sv))); | |
2358 | } | |
2359 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2360 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2361 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2362 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2363 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2364 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2365 | Hopefully for 2s complement IV_MIN is something like | |
2366 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2367 | } |
28e5dec8 JH |
2368 | else { |
2369 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2370 | if ( | |
2371 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2372 | #ifndef NV_PRESERVES_UV | |
2373 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2374 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2375 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2376 | /* Don't flag it as "accurately an integer" if the number | |
2377 | came from a (by definition imprecise) NV operation, and | |
2378 | we're outside the range of NV integer precision */ | |
2379 | #endif | |
2380 | ) | |
2381 | SvIOK_on(sv); | |
2382 | SvIsUV_on(sv); | |
1c846c1f | 2383 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2384 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2385 | PTR2UV(sv), |
28e5dec8 JH |
2386 | SvUVX(sv), |
2387 | SvUVX(sv))); | |
25da4f38 | 2388 | } |
ff68c719 | 2389 | } |
2390 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2391 | UV value; |
2392 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2393 | |
2394 | /* We want to avoid a possible problem when we cache a UV which | |
2395 | may be later translated to an NV, and the resulting NV is not | |
2396 | the translation of the initial data. | |
1c846c1f | 2397 | |
25da4f38 IZ |
2398 | This means that if we cache such a UV, we need to cache the |
2399 | NV as well. Moreover, we trade speed for space, and do not | |
2400 | cache the NV if not needed. | |
2401 | */ | |
16b7a9a4 | 2402 | |
c2988b20 NC |
2403 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2404 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2405 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2406 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2407 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2408 | sv_upgrade(sv, SVt_PVIV); |
2409 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2410 | } else if (SvTYPE(sv) < SVt_PVNV) |
2411 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2412 | |
c2988b20 NC |
2413 | /* If NV preserves UV then we only use the UV value if we know that |
2414 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2415 | then the value returned may have more precision than atof() will | |
2416 | return, even though it isn't accurate. */ | |
2417 | if ((numtype & (IS_NUMBER_IN_UV | |
2418 | #ifdef NV_PRESERVES_UV | |
2419 | | IS_NUMBER_NOT_INT | |
2420 | #endif | |
2421 | )) == IS_NUMBER_IN_UV) { | |
2422 | /* This won't turn off the public IOK flag if it was set above */ | |
2423 | (void)SvIOKp_on(sv); | |
2424 | ||
2425 | if (!(numtype & IS_NUMBER_NEG)) { | |
2426 | /* positive */; | |
2427 | if (value <= (UV)IV_MAX) { | |
2428 | SvIVX(sv) = (IV)value; | |
28e5dec8 JH |
2429 | } else { |
2430 | /* it didn't overflow, and it was positive. */ | |
c2988b20 | 2431 | SvUVX(sv) = value; |
28e5dec8 JH |
2432 | SvIsUV_on(sv); |
2433 | } | |
c2988b20 NC |
2434 | } else { |
2435 | /* 2s complement assumption */ | |
2436 | if (value <= (UV)IV_MIN) { | |
2437 | SvIVX(sv) = -(IV)value; | |
2438 | } else { | |
2439 | /* Too negative for an IV. This is a double upgrade, but | |
2440 | I'm assuming it will be be rare. */ | |
2441 | if (SvTYPE(sv) < SVt_PVNV) | |
2442 | sv_upgrade(sv, SVt_PVNV); | |
2443 | SvNOK_on(sv); | |
2444 | SvIOK_off(sv); | |
2445 | SvIOKp_on(sv); | |
2446 | SvNVX(sv) = -(NV)value; | |
2447 | SvIVX(sv) = IV_MIN; | |
2448 | } | |
2449 | } | |
2450 | } | |
2451 | ||
2452 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2453 | != IS_NUMBER_IN_UV) { | |
2454 | /* It wasn't an integer, or it overflowed the UV. */ | |
2455 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2456 | |
c2988b20 | 2457 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2458 | not_a_number(sv); |
2459 | ||
2460 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2461 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2462 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2463 | #else |
c2988b20 NC |
2464 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%g)\n", |
2465 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 JH |
2466 | #endif |
2467 | ||
2468 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2469 | (void)SvIOKp_on(sv); |
2470 | (void)SvNOK_on(sv); | |
2471 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2472 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2473 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2474 | SvIOK_on(sv); | |
2475 | } else { | |
2476 | /* Integer is imprecise. NOK, IOKp */ | |
2477 | } | |
2478 | /* UV will not work better than IV */ | |
2479 | } else { | |
2480 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2481 | SvIsUV_on(sv); | |
2482 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2483 | SvUVX(sv) = UV_MAX; | |
2484 | SvIsUV_on(sv); | |
2485 | } else { | |
2486 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2487 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs | |
2488 | NV preservse UV so can do correct comparison. */ | |
2489 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2490 | SvIOK_on(sv); | |
2491 | SvIsUV_on(sv); | |
2492 | } else { | |
2493 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2494 | SvIsUV_on(sv); | |
2495 | } | |
2496 | } | |
2497 | } | |
28e5dec8 | 2498 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2499 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2500 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2501 | /* The UV slot will have been set from value returned by | |
2502 | grok_number above. The NV slot has just been set using | |
2503 | Atof. */ | |
560b0c46 | 2504 | SvNOK_on(sv); |
c2988b20 NC |
2505 | assert (SvIOKp(sv)); |
2506 | } else { | |
2507 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2508 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2509 | /* Small enough to preserve all bits. */ | |
2510 | (void)SvIOKp_on(sv); | |
2511 | SvNOK_on(sv); | |
2512 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2513 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2514 | SvIOK_on(sv); | |
2515 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2516 | this NV is in the preserved range, therefore: */ | |
2517 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2518 | < (UV)IV_MAX)) { | |
2519 | 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); | |
2520 | } | |
2521 | } else | |
2522 | sv_2iuv_non_preserve (sv, numtype); | |
2523 | } | |
28e5dec8 | 2524 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2525 | } |
ff68c719 | 2526 | } |
2527 | else { | |
d008e5eb | 2528 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2529 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2530 | report_uninit(); |
c6ee37c5 | 2531 | } |
25da4f38 IZ |
2532 | if (SvTYPE(sv) < SVt_IV) |
2533 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2534 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2535 | return 0; |
2536 | } | |
25da4f38 | 2537 | |
1d7c1841 GS |
2538 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2539 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2540 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2541 | } |
2542 | ||
645c22ef DM |
2543 | /* |
2544 | =for apidoc sv_2nv | |
2545 | ||
2546 | Return the num value of an SV, doing any necessary string or integer | |
2547 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2548 | macros. | |
2549 | ||
2550 | =cut | |
2551 | */ | |
2552 | ||
65202027 | 2553 | NV |
864dbfa3 | 2554 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2555 | { |
2556 | if (!sv) | |
2557 | return 0.0; | |
8990e307 | 2558 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2559 | mg_get(sv); |
2560 | if (SvNOKp(sv)) | |
2561 | return SvNVX(sv); | |
a0d0e21e | 2562 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2563 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
2564 | !grok_number(SvPVX(sv), SvCUR(sv), NULL)) | |
a0d0e21e | 2565 | not_a_number(sv); |
097ee67d | 2566 | return Atof(SvPVX(sv)); |
a0d0e21e | 2567 | } |
25da4f38 | 2568 | if (SvIOKp(sv)) { |
1c846c1f | 2569 | if (SvIsUV(sv)) |
65202027 | 2570 | return (NV)SvUVX(sv); |
25da4f38 | 2571 | else |
65202027 | 2572 | return (NV)SvIVX(sv); |
25da4f38 | 2573 | } |
16d20bd9 | 2574 | if (!SvROK(sv)) { |
d008e5eb | 2575 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2576 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2577 | report_uninit(); |
c6ee37c5 | 2578 | } |
16d20bd9 AD |
2579 | return 0; |
2580 | } | |
463ee0b2 | 2581 | } |
ed6116ce | 2582 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2583 | if (SvROK(sv)) { |
a0d0e21e | 2584 | SV* tmpstr; |
1554e226 | 2585 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2586 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2587 | return SvNV(tmpstr); |
56431972 | 2588 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2589 | } |
8a818333 NIS |
2590 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2591 | sv_force_normal(sv); | |
2592 | } | |
0336b60e | 2593 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2594 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2595 | report_uninit(); |
ed6116ce LW |
2596 | return 0.0; |
2597 | } | |
79072805 LW |
2598 | } |
2599 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2600 | if (SvTYPE(sv) == SVt_IV) |
2601 | sv_upgrade(sv, SVt_PVNV); | |
2602 | else | |
2603 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2604 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2605 | DEBUG_c({ |
f93f4e46 | 2606 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2607 | PerlIO_printf(Perl_debug_log, |
2608 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2609 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2610 | RESTORE_NUMERIC_LOCAL(); |
2611 | }); | |
65202027 | 2612 | #else |
572bbb43 | 2613 | DEBUG_c({ |
f93f4e46 | 2614 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2615 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%g)\n", |
2616 | PTR2UV(sv), SvNVX(sv)); | |
097ee67d JH |
2617 | RESTORE_NUMERIC_LOCAL(); |
2618 | }); | |
572bbb43 | 2619 | #endif |
79072805 LW |
2620 | } |
2621 | else if (SvTYPE(sv) < SVt_PVNV) | |
2622 | sv_upgrade(sv, SVt_PVNV); | |
61604483 HS |
2623 | if (SvNOKp(sv) && !(SvIOK(sv) || SvPOK(sv))) { |
2624 | SvNOK_on(sv); | |
2625 | } | |
906f284f | 2626 | else if (SvIOKp(sv)) { |
65202027 | 2627 | SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv); |
28e5dec8 JH |
2628 | #ifdef NV_PRESERVES_UV |
2629 | SvNOK_on(sv); | |
2630 | #else | |
2631 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2632 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2633 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2634 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2635 | SvNOK_on(sv); | |
2636 | else | |
2637 | SvNOKp_on(sv); | |
2638 | #endif | |
93a17b20 | 2639 | } |
748a9306 | 2640 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2641 | UV value; |
2642 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2643 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) | |
a0d0e21e | 2644 | not_a_number(sv); |
28e5dec8 | 2645 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2646 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2647 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2648 | /* It's definitely an integer */ |
c2988b20 NC |
2649 | SvNVX(sv) = (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value; |
2650 | } else | |
2651 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 JH |
2652 | SvNOK_on(sv); |
2653 | #else | |
c2988b20 | 2654 | SvNVX(sv) = Atof(SvPVX(sv)); |
28e5dec8 JH |
2655 | /* Only set the public NV OK flag if this NV preserves the value in |
2656 | the PV at least as well as an IV/UV would. | |
2657 | Not sure how to do this 100% reliably. */ | |
2658 | /* if that shift count is out of range then Configure's test is | |
2659 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2660 | UV_BITS */ | |
2661 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2662 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2663 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2664 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2665 | /* Can't use strtol etc to convert this string, so don't try. | |
2666 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2667 | SvNOK_on(sv); | |
2668 | } else { | |
2669 | /* value has been set. It may not be precise. */ | |
2670 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2671 | /* 2s complement assumption for (UV)IV_MIN */ | |
2672 | SvNOK_on(sv); /* Integer is too negative. */ | |
2673 | } else { | |
2674 | SvNOKp_on(sv); | |
2675 | SvIOKp_on(sv); | |
6fa402ec | 2676 | |
c2988b20 NC |
2677 | if (numtype & IS_NUMBER_NEG) { |
2678 | SvIVX(sv) = -(IV)value; | |
2679 | } else if (value <= (UV)IV_MAX) { | |
2680 | SvIVX(sv) = (IV)value; | |
2681 | } else { | |
2682 | SvUVX(sv) = value; | |
2683 | SvIsUV_on(sv); | |
2684 | } | |
2685 | ||
2686 | if (numtype & IS_NUMBER_NOT_INT) { | |
2687 | /* I believe that even if the original PV had decimals, | |
2688 | they are lost beyond the limit of the FP precision. | |
2689 | However, neither is canonical, so both only get p | |
2690 | flags. NWC, 2000/11/25 */ | |
2691 | /* Both already have p flags, so do nothing */ | |
2692 | } else { | |
2693 | NV nv = SvNVX(sv); | |
2694 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2695 | if (SvIVX(sv) == I_V(nv)) { | |
2696 | SvNOK_on(sv); | |
2697 | SvIOK_on(sv); | |
2698 | } else { | |
2699 | SvIOK_on(sv); | |
2700 | /* It had no "." so it must be integer. */ | |
2701 | } | |
2702 | } else { | |
2703 | /* between IV_MAX and NV(UV_MAX). | |
2704 | Could be slightly > UV_MAX */ | |
6fa402ec | 2705 | |
c2988b20 NC |
2706 | if (numtype & IS_NUMBER_NOT_INT) { |
2707 | /* UV and NV both imprecise. */ | |
2708 | } else { | |
2709 | UV nv_as_uv = U_V(nv); | |
2710 | ||
2711 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2712 | SvNOK_on(sv); | |
2713 | SvIOK_on(sv); | |
2714 | } else { | |
2715 | SvIOK_on(sv); | |
2716 | } | |
2717 | } | |
2718 | } | |
2719 | } | |
2720 | } | |
2721 | } | |
28e5dec8 | 2722 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2723 | } |
79072805 | 2724 | else { |
599cee73 | 2725 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2726 | report_uninit(); |
25da4f38 IZ |
2727 | if (SvTYPE(sv) < SVt_NV) |
2728 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2729 | /* XXX Ilya implies that this is a bug in callers that assume this |
2730 | and ideally should be fixed. */ | |
25da4f38 | 2731 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2732 | return 0.0; |
79072805 | 2733 | } |
572bbb43 | 2734 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2735 | DEBUG_c({ |
f93f4e46 | 2736 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2737 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2738 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2739 | RESTORE_NUMERIC_LOCAL(); |
2740 | }); | |
65202027 | 2741 | #else |
572bbb43 | 2742 | DEBUG_c({ |
f93f4e46 | 2743 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2744 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%g)\n", |
2745 | PTR2UV(sv), SvNVX(sv)); | |
097ee67d JH |
2746 | RESTORE_NUMERIC_LOCAL(); |
2747 | }); | |
572bbb43 | 2748 | #endif |
463ee0b2 | 2749 | return SvNVX(sv); |
79072805 LW |
2750 | } |
2751 | ||
645c22ef DM |
2752 | /* asIV(): extract an integer from the string value of an SV. |
2753 | * Caller must validate PVX */ | |
2754 | ||
76e3520e | 2755 | STATIC IV |
cea2e8a9 | 2756 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2757 | { |
c2988b20 NC |
2758 | UV value; |
2759 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2760 | ||
2761 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2762 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2763 | /* It's definitely an integer */ |
c2988b20 NC |
2764 | if (numtype & IS_NUMBER_NEG) { |
2765 | if (value < (UV)IV_MIN) | |
2766 | return -(IV)value; | |
2767 | } else { | |
2768 | if (value < (UV)IV_MAX) | |
2769 | return (IV)value; | |
2770 | } | |
2771 | } | |
d008e5eb | 2772 | if (!numtype) { |
d008e5eb GS |
2773 | if (ckWARN(WARN_NUMERIC)) |
2774 | not_a_number(sv); | |
2775 | } | |
c2988b20 | 2776 | return I_V(Atof(SvPVX(sv))); |
36477c24 | 2777 | } |
2778 | ||
645c22ef DM |
2779 | /* asUV(): extract an unsigned integer from the string value of an SV |
2780 | * Caller must validate PVX */ | |
2781 | ||
76e3520e | 2782 | STATIC UV |
cea2e8a9 | 2783 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2784 | { |
c2988b20 NC |
2785 | UV value; |
2786 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
36477c24 | 2787 | |
c2988b20 NC |
2788 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2789 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2790 | /* It's definitely an integer */ |
6fa402ec | 2791 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2792 | return value; |
2793 | } | |
d008e5eb | 2794 | if (!numtype) { |
d008e5eb GS |
2795 | if (ckWARN(WARN_NUMERIC)) |
2796 | not_a_number(sv); | |
2797 | } | |
097ee67d | 2798 | return U_V(Atof(SvPVX(sv))); |
36477c24 | 2799 | } |
2800 | ||
645c22ef DM |
2801 | /* |
2802 | =for apidoc sv_2pv_nolen | |
2803 | ||
2804 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2805 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2806 | =cut | |
2807 | */ | |
2808 | ||
79072805 | 2809 | char * |
864dbfa3 | 2810 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
2811 | { |
2812 | STRLEN n_a; | |
2813 | return sv_2pv(sv, &n_a); | |
2814 | } | |
2815 | ||
645c22ef DM |
2816 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2817 | * UV as a string towards the end of buf, and return pointers to start and | |
2818 | * end of it. | |
2819 | * | |
2820 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2821 | */ | |
2822 | ||
864dbfa3 | 2823 | static char * |
25da4f38 IZ |
2824 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
2825 | { | |
25da4f38 IZ |
2826 | char *ptr = buf + TYPE_CHARS(UV); |
2827 | char *ebuf = ptr; | |
2828 | int sign; | |
25da4f38 IZ |
2829 | |
2830 | if (is_uv) | |
2831 | sign = 0; | |
2832 | else if (iv >= 0) { | |
2833 | uv = iv; | |
2834 | sign = 0; | |
2835 | } else { | |
2836 | uv = -iv; | |
2837 | sign = 1; | |
2838 | } | |
2839 | do { | |
2840 | *--ptr = '0' + (uv % 10); | |
2841 | } while (uv /= 10); | |
2842 | if (sign) | |
2843 | *--ptr = '-'; | |
2844 | *peob = ebuf; | |
2845 | return ptr; | |
2846 | } | |
2847 | ||
645c22ef DM |
2848 | /* For backwards-compatibility only. sv_2pv() is normally #def'ed to |
2849 | * C<sv_2pv_macro()>. See also C<sv_2pv_flags()>. | |
2850 | */ | |
2851 | ||
1fa8b10d | 2852 | char * |
864dbfa3 | 2853 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) |
79072805 | 2854 | { |
36f65ada | 2855 | return sv_2pv_flags(sv, lp, SV_GMAGIC); |
8d6d96c1 HS |
2856 | } |
2857 | ||
645c22ef DM |
2858 | /* |
2859 | =for apidoc sv_2pv_flags | |
2860 | ||
ff276b08 | 2861 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
2862 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
2863 | if necessary. | |
2864 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
2865 | usually end up here too. | |
2866 | ||
2867 | =cut | |
2868 | */ | |
2869 | ||
8d6d96c1 HS |
2870 | char * |
2871 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
2872 | { | |
79072805 LW |
2873 | register char *s; |
2874 | int olderrno; | |
46fc3d4c | 2875 | SV *tsv; |
25da4f38 IZ |
2876 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
2877 | char *tmpbuf = tbuf; | |
79072805 | 2878 | |
463ee0b2 LW |
2879 | if (!sv) { |
2880 | *lp = 0; | |
2881 | return ""; | |
2882 | } | |
8990e307 | 2883 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
2884 | if (flags & SV_GMAGIC) |
2885 | mg_get(sv); | |
463ee0b2 LW |
2886 | if (SvPOKp(sv)) { |
2887 | *lp = SvCUR(sv); | |
2888 | return SvPVX(sv); | |
2889 | } | |
cf2093f6 | 2890 | if (SvIOKp(sv)) { |
1c846c1f | 2891 | if (SvIsUV(sv)) |
57def98f | 2892 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 2893 | else |
57def98f | 2894 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 2895 | tsv = Nullsv; |
a0d0e21e | 2896 | goto tokensave; |
463ee0b2 LW |
2897 | } |
2898 | if (SvNOKp(sv)) { | |
2d4389e4 | 2899 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 2900 | tsv = Nullsv; |
a0d0e21e | 2901 | goto tokensave; |
463ee0b2 | 2902 | } |
16d20bd9 | 2903 | if (!SvROK(sv)) { |
d008e5eb | 2904 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2905 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2906 | report_uninit(); |
c6ee37c5 | 2907 | } |
16d20bd9 AD |
2908 | *lp = 0; |
2909 | return ""; | |
2910 | } | |
463ee0b2 | 2911 | } |
ed6116ce LW |
2912 | if (SvTHINKFIRST(sv)) { |
2913 | if (SvROK(sv)) { | |
a0d0e21e | 2914 | SV* tmpstr; |
1554e226 | 2915 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
1dc13c17 | 2916 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2917 | return SvPV(tmpstr,*lp); |
ed6116ce LW |
2918 | sv = (SV*)SvRV(sv); |
2919 | if (!sv) | |
2920 | s = "NULLREF"; | |
2921 | else { | |
f9277f47 IZ |
2922 | MAGIC *mg; |
2923 | ||
ed6116ce | 2924 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
2925 | case SVt_PVMG: |
2926 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 2927 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
3149a8e4 | 2928 | == (SVs_OBJECT|SVs_RMG)) |
57668c4d | 2929 | && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp") |
14befaf4 | 2930 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
2cd61cdb | 2931 | regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 2932 | |
2cd61cdb | 2933 | if (!mg->mg_ptr) { |
8782bef2 GB |
2934 | char *fptr = "msix"; |
2935 | char reflags[6]; | |
2936 | char ch; | |
2937 | int left = 0; | |
2938 | int right = 4; | |
2939 | U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12; | |
2940 | ||
155aba94 | 2941 | while((ch = *fptr++)) { |
8782bef2 GB |
2942 | if(reganch & 1) { |
2943 | reflags[left++] = ch; | |
2944 | } | |
2945 | else { | |
2946 | reflags[right--] = ch; | |
2947 | } | |
2948 | reganch >>= 1; | |
2949 | } | |
2950 | if(left != 4) { | |
2951 | reflags[left] = '-'; | |
2952 | left = 5; | |
2953 | } | |
2954 | ||
2955 | mg->mg_len = re->prelen + 4 + left; | |
2956 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); | |
2957 | Copy("(?", mg->mg_ptr, 2, char); | |
2958 | Copy(reflags, mg->mg_ptr+2, left, char); | |
2959 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
2960 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
1bd3ad17 IZ |
2961 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
2962 | mg->mg_ptr[mg->mg_len] = 0; | |
2963 | } | |
3280af22 | 2964 | PL_reginterp_cnt += re->program[0].next_off; |
1bd3ad17 IZ |
2965 | *lp = mg->mg_len; |
2966 | return mg->mg_ptr; | |
f9277f47 IZ |
2967 | } |
2968 | /* Fall through */ | |
ed6116ce LW |
2969 | case SVt_NULL: |
2970 | case SVt_IV: | |
2971 | case SVt_NV: | |
2972 | case SVt_RV: | |
2973 | case SVt_PV: | |
2974 | case SVt_PVIV: | |
2975 | case SVt_PVNV: | |
81689caa HS |
2976 | case SVt_PVBM: if (SvROK(sv)) |
2977 | s = "REF"; | |
2978 | else | |
2979 | s = "SCALAR"; break; | |
ed6116ce LW |
2980 | case SVt_PVLV: s = "LVALUE"; break; |
2981 | case SVt_PVAV: s = "ARRAY"; break; | |
2982 | case SVt_PVHV: s = "HASH"; break; | |
2983 | case SVt_PVCV: s = "CODE"; break; | |
2984 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 2985 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 2986 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
2987 | default: s = "UNKNOWN"; break; |
2988 | } | |
46fc3d4c | 2989 | tsv = NEWSV(0,0); |
ed6116ce | 2990 | if (SvOBJECT(sv)) |
cea2e8a9 | 2991 | Perl_sv_setpvf(aTHX_ tsv, "%s=%s", HvNAME(SvSTASH(sv)), s); |
ed6116ce | 2992 | else |
46fc3d4c | 2993 | sv_setpv(tsv, s); |
57def98f | 2994 | Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv)); |
a0d0e21e | 2995 | goto tokensaveref; |
463ee0b2 | 2996 | } |
ed6116ce LW |
2997 | *lp = strlen(s); |
2998 | return s; | |
79072805 | 2999 | } |
0336b60e | 3000 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3001 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 3002 | report_uninit(); |
ed6116ce LW |
3003 | *lp = 0; |
3004 | return ""; | |
79072805 | 3005 | } |
79072805 | 3006 | } |
28e5dec8 JH |
3007 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3008 | /* I'm assuming that if both IV and NV are equally valid then | |
3009 | converting the IV is going to be more efficient */ | |
3010 | U32 isIOK = SvIOK(sv); | |
3011 | U32 isUIOK = SvIsUV(sv); | |
3012 | char buf[TYPE_CHARS(UV)]; | |
3013 | char *ebuf, *ptr; | |
3014 | ||
3015 | if (SvTYPE(sv) < SVt_PVIV) | |
3016 | sv_upgrade(sv, SVt_PVIV); | |
3017 | if (isUIOK) | |
3018 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3019 | else | |
3020 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
3021 | SvGROW(sv, ebuf - ptr + 1); /* inlined from sv_setpvn */ | |
3022 | Move(ptr,SvPVX(sv),ebuf - ptr,char); | |
3023 | SvCUR_set(sv, ebuf - ptr); | |
3024 | s = SvEND(sv); | |
3025 | *s = '\0'; | |
3026 | if (isIOK) | |
3027 | SvIOK_on(sv); | |
3028 | else | |
3029 | SvIOKp_on(sv); | |
3030 | if (isUIOK) | |
3031 | SvIsUV_on(sv); | |
3032 | } | |
3033 | else if (SvNOKp(sv)) { | |
79072805 LW |
3034 | if (SvTYPE(sv) < SVt_PVNV) |
3035 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3036 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
59155cc0 | 3037 | SvGROW(sv, NV_DIG + 20); |
463ee0b2 | 3038 | s = SvPVX(sv); |
79072805 | 3039 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3040 | #ifdef apollo |
463ee0b2 | 3041 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3042 | (void)strcpy(s,"0"); |
3043 | else | |
3044 | #endif /*apollo*/ | |
bbce6d69 | 3045 | { |
2d4389e4 | 3046 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3047 | } |
79072805 | 3048 | errno = olderrno; |
a0d0e21e LW |
3049 | #ifdef FIXNEGATIVEZERO |
3050 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3051 | strcpy(s,"0"); | |
3052 | #endif | |
79072805 LW |
3053 | while (*s) s++; |
3054 | #ifdef hcx | |
3055 | if (s[-1] == '.') | |
46fc3d4c | 3056 | *--s = '\0'; |
79072805 LW |
3057 | #endif |
3058 | } | |
79072805 | 3059 | else { |
0336b60e IZ |
3060 | if (ckWARN(WARN_UNINITIALIZED) |
3061 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
1d7c1841 | 3062 | report_uninit(); |
a0d0e21e | 3063 | *lp = 0; |
25da4f38 IZ |
3064 | if (SvTYPE(sv) < SVt_PV) |
3065 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3066 | sv_upgrade(sv, SVt_PV); | |
a0d0e21e | 3067 | return ""; |
79072805 | 3068 | } |
463ee0b2 LW |
3069 | *lp = s - SvPVX(sv); |
3070 | SvCUR_set(sv, *lp); | |
79072805 | 3071 | SvPOK_on(sv); |
1d7c1841 GS |
3072 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3073 | PTR2UV(sv),SvPVX(sv))); | |
463ee0b2 | 3074 | return SvPVX(sv); |
a0d0e21e LW |
3075 | |
3076 | tokensave: | |
3077 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3078 | /* Sneaky stuff here */ | |
3079 | ||
3080 | tokensaveref: | |
46fc3d4c | 3081 | if (!tsv) |
96827780 | 3082 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3083 | sv_2mortal(tsv); |
3084 | *lp = SvCUR(tsv); | |
3085 | return SvPVX(tsv); | |
a0d0e21e LW |
3086 | } |
3087 | else { | |
3088 | STRLEN len; | |
46fc3d4c | 3089 | char *t; |
3090 | ||
3091 | if (tsv) { | |
3092 | sv_2mortal(tsv); | |
3093 | t = SvPVX(tsv); | |
3094 | len = SvCUR(tsv); | |
3095 | } | |
3096 | else { | |
96827780 MB |
3097 | t = tmpbuf; |
3098 | len = strlen(tmpbuf); | |
46fc3d4c | 3099 | } |
a0d0e21e | 3100 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3101 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3102 | t = "0"; | |
3103 | len = 1; | |
3104 | } | |
a0d0e21e LW |
3105 | #endif |
3106 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 3107 | *lp = len; |
a0d0e21e LW |
3108 | s = SvGROW(sv, len + 1); |
3109 | SvCUR_set(sv, len); | |
46fc3d4c | 3110 | (void)strcpy(s, t); |
6bf554b4 | 3111 | SvPOKp_on(sv); |
a0d0e21e LW |
3112 | return s; |
3113 | } | |
463ee0b2 LW |
3114 | } |
3115 | ||
645c22ef DM |
3116 | /* |
3117 | =for apidoc sv_2pvbyte_nolen | |
3118 | ||
3119 | Return a pointer to the byte-encoded representation of the SV. | |
3120 | May cause the SV to be downgraded from UTF8 as a side-effect. | |
3121 | ||
3122 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3123 | ||
3124 | =cut | |
3125 | */ | |
3126 | ||
7340a771 GS |
3127 | char * |
3128 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3129 | { | |
560a288e GS |
3130 | STRLEN n_a; |
3131 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
3132 | } |
3133 | ||
645c22ef DM |
3134 | /* |
3135 | =for apidoc sv_2pvbyte | |
3136 | ||
3137 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
3138 | to its length. May cause the SV to be downgraded from UTF8 as a | |
3139 | side-effect. | |
3140 | ||
3141 | Usually accessed via the C<SvPVbyte> macro. | |
3142 | ||
3143 | =cut | |
3144 | */ | |
3145 | ||
7340a771 GS |
3146 | char * |
3147 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3148 | { | |
0875d2fe NIS |
3149 | sv_utf8_downgrade(sv,0); |
3150 | return SvPV(sv,*lp); | |
7340a771 GS |
3151 | } |
3152 | ||
645c22ef DM |
3153 | /* |
3154 | =for apidoc sv_2pvutf8_nolen | |
3155 | ||
3156 | Return a pointer to the UTF8-encoded representation of the SV. | |
3157 | May cause the SV to be upgraded to UTF8 as a side-effect. | |
3158 | ||
3159 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3160 | ||
3161 | =cut | |
3162 | */ | |
3163 | ||
7340a771 GS |
3164 | char * |
3165 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3166 | { | |
560a288e GS |
3167 | STRLEN n_a; |
3168 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
3169 | } |
3170 | ||
645c22ef DM |
3171 | /* |
3172 | =for apidoc sv_2pvutf8 | |
3173 | ||
3174 | Return a pointer to the UTF8-encoded representation of the SV, and set *lp | |
3175 | to its length. May cause the SV to be upgraded to UTF8 as a side-effect. | |
3176 | ||
3177 | Usually accessed via the C<SvPVutf8> macro. | |
3178 | ||
3179 | =cut | |
3180 | */ | |
3181 | ||
7340a771 GS |
3182 | char * |
3183 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3184 | { | |
560a288e | 3185 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3186 | return SvPV(sv,*lp); |
7340a771 | 3187 | } |
1c846c1f | 3188 | |
645c22ef DM |
3189 | /* |
3190 | =for apidoc sv_2bool | |
3191 | ||
3192 | This function is only called on magical items, and is only used by | |
3193 | sv_true() or its macro equivalent. | |
3194 | ||
3195 | =cut | |
3196 | */ | |
3197 | ||
463ee0b2 | 3198 | bool |
864dbfa3 | 3199 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3200 | { |
8990e307 | 3201 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3202 | mg_get(sv); |
3203 | ||
a0d0e21e LW |
3204 | if (!SvOK(sv)) |
3205 | return 0; | |
3206 | if (SvROK(sv)) { | |
a0d0e21e | 3207 | SV* tmpsv; |
1554e226 | 3208 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
1dc13c17 | 3209 | (SvTYPE(tmpsv) != SVt_RV || (SvRV(tmpsv) != SvRV(sv)))) |
9e7bc3e8 | 3210 | return SvTRUE(tmpsv); |
a0d0e21e LW |
3211 | return SvRV(sv) != 0; |
3212 | } | |
463ee0b2 | 3213 | if (SvPOKp(sv)) { |
11343788 MB |
3214 | register XPV* Xpvtmp; |
3215 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
3216 | (*Xpvtmp->xpv_pv > '0' || | |
3217 | Xpvtmp->xpv_cur > 1 || | |
3218 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3219 | return 1; |
3220 | else | |
3221 | return 0; | |
3222 | } | |
3223 | else { | |
3224 | if (SvIOKp(sv)) | |
3225 | return SvIVX(sv) != 0; | |
3226 | else { | |
3227 | if (SvNOKp(sv)) | |
3228 | return SvNVX(sv) != 0.0; | |
3229 | else | |
3230 | return FALSE; | |
3231 | } | |
3232 | } | |
79072805 LW |
3233 | } |
3234 | ||
c461cf8f JH |
3235 | /* |
3236 | =for apidoc sv_utf8_upgrade | |
3237 | ||
3238 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3239 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3240 | Always sets the SvUTF8 flag to avoid future validity checks even |
3241 | if all the bytes have hibit clear. | |
c461cf8f JH |
3242 | |
3243 | =cut | |
3244 | */ | |
3245 | ||
4411f3b6 | 3246 | STRLEN |
560a288e GS |
3247 | Perl_sv_utf8_upgrade(pTHX_ register SV *sv) |
3248 | { | |
36f65ada | 3249 | return sv_utf8_upgrade_flags(sv, SV_GMAGIC); |
8d6d96c1 HS |
3250 | } |
3251 | ||
3252 | /* | |
3253 | =for apidoc sv_utf8_upgrade_flags | |
3254 | ||
3255 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3256 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3257 | Always sets the SvUTF8 flag to avoid future validity checks even |
3258 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3259 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3260 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3261 | ||
3262 | =cut | |
3263 | */ | |
3264 | ||
3265 | STRLEN | |
3266 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3267 | { | |
db42d148 | 3268 | U8 *s, *t, *e; |
511c2ff0 | 3269 | int hibit = 0; |
560a288e | 3270 | |
4411f3b6 NIS |
3271 | if (!sv) |
3272 | return 0; | |
3273 | ||
e0e62c2a NIS |
3274 | if (!SvPOK(sv)) { |
3275 | STRLEN len = 0; | |
8d6d96c1 | 3276 | (void) sv_2pv_flags(sv,&len, flags); |
e0e62c2a NIS |
3277 | if (!SvPOK(sv)) |
3278 | return len; | |
3279 | } | |
4411f3b6 NIS |
3280 | |
3281 | if (SvUTF8(sv)) | |
3282 | return SvCUR(sv); | |
560a288e | 3283 | |
db42d148 NIS |
3284 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
3285 | sv_force_normal(sv); | |
3286 | } | |
3287 | ||
40826f67 JH |
3288 | /* This function could be much more efficient if we had a FLAG in SVs |
3289 | * to signal if there are any hibit chars in the PV. | |
511c2ff0 | 3290 | * Given that there isn't make loop fast as possible |
560a288e | 3291 | */ |
db42d148 NIS |
3292 | s = (U8 *) SvPVX(sv); |
3293 | e = (U8 *) SvEND(sv); | |
511c2ff0 NIS |
3294 | t = s; |
3295 | while (t < e) { | |
c4d5f83a NIS |
3296 | U8 ch = *t++; |
3297 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) | |
8a818333 | 3298 | break; |
8a818333 | 3299 | } |
40826f67 | 3300 | if (hibit) { |
8a818333 | 3301 | STRLEN len; |
652088fc | 3302 | |
8a818333 | 3303 | len = SvCUR(sv) + 1; /* Plus the \0 */ |
00df9076 | 3304 | SvPVX(sv) = (char*)bytes_to_utf8((U8*)s, &len); |
841d7a39 | 3305 | SvCUR(sv) = len - 1; |
511c2ff0 NIS |
3306 | if (SvLEN(sv) != 0) |
3307 | Safefree(s); /* No longer using what was there before. */ | |
841d7a39 | 3308 | SvLEN(sv) = len; /* No longer know the real size. */ |
560a288e | 3309 | } |
4411f3b6 NIS |
3310 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ |
3311 | SvUTF8_on(sv); | |
3312 | return SvCUR(sv); | |
560a288e GS |
3313 | } |
3314 | ||
c461cf8f JH |
3315 | /* |
3316 | =for apidoc sv_utf8_downgrade | |
3317 | ||
3318 | Attempt to convert the PV of an SV from UTF8-encoded to byte encoding. | |
3319 | This may not be possible if the PV contains non-byte encoding characters; | |
3320 | if this is the case, either returns false or, if C<fail_ok> is not | |
3321 | true, croaks. | |
3322 | ||
3323 | =cut | |
3324 | */ | |
3325 | ||
560a288e GS |
3326 | bool |
3327 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3328 | { | |
3329 | if (SvPOK(sv) && SvUTF8(sv)) { | |
fa301091 | 3330 | if (SvCUR(sv)) { |
03cfe0ae | 3331 | U8 *s; |
652088fc | 3332 | STRLEN len; |
fa301091 | 3333 | |
652088fc JH |
3334 | if (SvREADONLY(sv) && SvFAKE(sv)) |
3335 | sv_force_normal(sv); | |
03cfe0ae NIS |
3336 | s = (U8 *) SvPV(sv, len); |
3337 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3338 | if (fail_ok) |
3339 | return FALSE; | |
03cfe0ae | 3340 | #ifdef USE_BYTES_DOWNGRADES |
0064a8a9 | 3341 | else if (IN_BYTES) { |
03cfe0ae NIS |
3342 | U8 *d = s; |
3343 | U8 *e = (U8 *) SvEND(sv); | |
3344 | int first = 1; | |
3345 | while (s < e) { | |
3346 | UV ch = utf8n_to_uvchr(s,(e-s),&len,0); | |
3347 | if (first && ch > 255) { | |
3348 | if (PL_op) | |
3349 | Perl_warner(aTHX_ WARN_UTF8, "Wide character in byte %s", | |
3350 | PL_op_desc[PL_op->op_type]); | |
3351 | else | |
3352 | Perl_warner(aTHX_ WARN_UTF8, "Wide character in byte"); | |
3353 | first = 0; | |
3354 | } | |
3355 | *d++ = ch; | |
3356 | s += len; | |
3357 | } | |
3358 | *d = '\0'; | |
3359 | len = (d - (U8 *) SvPVX(sv)); | |
3360 | } | |
3361 | #endif | |
fa301091 JH |
3362 | else { |
3363 | if (PL_op) | |
3364 | Perl_croak(aTHX_ "Wide character in %s", | |
3365 | PL_op_desc[PL_op->op_type]); | |
3366 | else | |
3367 | Perl_croak(aTHX_ "Wide character"); | |
3368 | } | |
4b3603a4 | 3369 | } |
fa301091 | 3370 | SvCUR(sv) = len; |
67e989fb | 3371 | } |
560a288e | 3372 | } |
ffebcc3e | 3373 | SvUTF8_off(sv); |
560a288e GS |
3374 | return TRUE; |
3375 | } | |
3376 | ||
c461cf8f JH |
3377 | /* |
3378 | =for apidoc sv_utf8_encode | |
3379 | ||
3380 | Convert the PV of an SV to UTF8-encoded, but then turn off the C<SvUTF8> | |
4411f3b6 NIS |
3381 | flag so that it looks like octets again. Used as a building block |
3382 | for encode_utf8 in Encode.xs | |
c461cf8f JH |
3383 | |
3384 | =cut | |
3385 | */ | |
3386 | ||
560a288e GS |
3387 | void |
3388 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3389 | { | |
4411f3b6 | 3390 | (void) sv_utf8_upgrade(sv); |
560a288e GS |
3391 | SvUTF8_off(sv); |
3392 | } | |
3393 | ||
4411f3b6 NIS |
3394 | /* |
3395 | =for apidoc sv_utf8_decode | |
3396 | ||
3397 | Convert the octets in the PV from UTF-8 to chars. Scan for validity and then | |
645c22ef | 3398 | turn off SvUTF8 if needed so that we see characters. Used as a building block |
4411f3b6 NIS |
3399 | for decode_utf8 in Encode.xs |
3400 | ||
3401 | =cut | |
3402 | */ | |
3403 | ||
560a288e GS |
3404 | bool |
3405 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3406 | { | |
3407 | if (SvPOK(sv)) { | |
63cd0674 NIS |
3408 | U8 *c; |
3409 | U8 *e; | |
9cbac4c7 | 3410 | |
645c22ef DM |
3411 | /* The octets may have got themselves encoded - get them back as |
3412 | * bytes | |
3413 | */ | |
3414 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3415 | return FALSE; |
3416 | ||
3417 | /* it is actually just a matter of turning the utf8 flag on, but | |
3418 | * we want to make sure everything inside is valid utf8 first. | |
3419 | */ | |
63cd0674 NIS |
3420 | c = (U8 *) SvPVX(sv); |
3421 | if (!is_utf8_string(c, SvCUR(sv)+1)) | |
67e989fb | 3422 | return FALSE; |
63cd0674 | 3423 | e = (U8 *) SvEND(sv); |
511c2ff0 | 3424 | while (c < e) { |
c4d5f83a NIS |
3425 | U8 ch = *c++; |
3426 | if (!UTF8_IS_INVARIANT(ch)) { | |
67e989fb JH |
3427 | SvUTF8_on(sv); |
3428 | break; | |
3429 | } | |
560a288e | 3430 | } |
560a288e GS |
3431 | } |
3432 | return TRUE; | |
3433 | } | |
3434 | ||
954c1994 GS |
3435 | /* |
3436 | =for apidoc sv_setsv | |
3437 | ||
645c22ef DM |
3438 | Copies the contents of the source SV C<ssv> into the destination SV |
3439 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3440 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3441 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3442 | content of the destination. | |
3443 | ||
3444 | You probably want to use one of the assortment of wrappers, such as | |
3445 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3446 | C<SvSetMagicSV_nosteal>. | |
3447 | ||
954c1994 GS |
3448 | |
3449 | =cut | |
3450 | */ | |
3451 | ||
8d6d96c1 HS |
3452 | /* sv_setsv() is aliased to Perl_sv_setsv_macro; this function provided |
3453 | for binary compatibility only | |
3454 | */ | |
79072805 | 3455 | void |
864dbfa3 | 3456 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) |
79072805 | 3457 | { |
8d6d96c1 HS |
3458 | sv_setsv_flags(dstr, sstr, SV_GMAGIC); |
3459 | } | |
3460 | ||
3461 | /* | |
3462 | =for apidoc sv_setsv_flags | |
3463 | ||
645c22ef DM |
3464 | Copies the contents of the source SV C<ssv> into the destination SV |
3465 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3466 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3467 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3468 | content of the destination. | |
3469 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
3470 | C<ssv> if appropriate, else not. C<sv_setsv> and C<sv_setsv_nomg> are | |
3471 | implemented in terms of this function. | |
3472 | ||
3473 | You probably want to use one of the assortment of wrappers, such as | |
3474 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3475 | C<SvSetMagicSV_nosteal>. | |
3476 | ||
3477 | This is the primary function for copying scalars, and most other | |
3478 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3479 | |
3480 | =cut | |
3481 | */ | |
3482 | ||
3483 | void | |
3484 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3485 | { | |
8990e307 LW |
3486 | register U32 sflags; |
3487 | register int dtype; | |
3488 | register int stype; | |
463ee0b2 | 3489 | |
79072805 LW |
3490 | if (sstr == dstr) |
3491 | return; | |
2213622d | 3492 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 3493 | if (!sstr) |
3280af22 | 3494 | sstr = &PL_sv_undef; |
8990e307 LW |
3495 | stype = SvTYPE(sstr); |
3496 | dtype = SvTYPE(dstr); | |
79072805 | 3497 | |
a0d0e21e | 3498 | SvAMAGIC_off(dstr); |
9e7bc3e8 | 3499 | |
463ee0b2 | 3500 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3501 | |
8990e307 | 3502 | switch (stype) { |
79072805 | 3503 | case SVt_NULL: |
aece5585 | 3504 | undef_sstr: |
20408e3c GS |
3505 | if (dtype != SVt_PVGV) { |
3506 | (void)SvOK_off(dstr); | |
3507 | return; | |
3508 | } | |
3509 | break; | |
463ee0b2 | 3510 | case SVt_IV: |
aece5585 GA |
3511 | if (SvIOK(sstr)) { |
3512 | switch (dtype) { | |
3513 | case SVt_NULL: | |
8990e307 | 3514 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3515 | break; |
3516 | case SVt_NV: | |
8990e307 | 3517 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3518 | break; |
3519 | case SVt_RV: | |
3520 | case SVt_PV: | |
a0d0e21e | 3521 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3522 | break; |
3523 | } | |
3524 | (void)SvIOK_only(dstr); | |
3525 | SvIVX(dstr) = SvIVX(sstr); | |
25da4f38 IZ |
3526 | if (SvIsUV(sstr)) |
3527 | SvIsUV_on(dstr); | |
27c9684d AP |
3528 | if (SvTAINTED(sstr)) |
3529 | SvTAINT(dstr); | |
aece5585 | 3530 | return; |
8990e307 | 3531 | } |
aece5585 GA |
3532 | goto undef_sstr; |
3533 | ||
463ee0b2 | 3534 | case SVt_NV: |
aece5585 GA |
3535 | if (SvNOK(sstr)) { |
3536 | switch (dtype) { | |
3537 | case SVt_NULL: | |
3538 | case SVt_IV: | |
8990e307 | 3539 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3540 | break; |
3541 | case SVt_RV: | |
3542 | case SVt_PV: | |
3543 | case SVt_PVIV: | |
a0d0e21e | 3544 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3545 | break; |
3546 | } | |
3547 | SvNVX(dstr) = SvNVX(sstr); | |
3548 | (void)SvNOK_only(dstr); | |
27c9684d AP |
3549 | if (SvTAINTED(sstr)) |
3550 | SvTAINT(dstr); | |
aece5585 | 3551 | return; |
8990e307 | 3552 | } |
aece5585 GA |
3553 | goto undef_sstr; |
3554 | ||
ed6116ce | 3555 | case SVt_RV: |
8990e307 | 3556 | if (dtype < SVt_RV) |
ed6116ce | 3557 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3558 | else if (dtype == SVt_PVGV && |
3559 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { | |
3560 | sstr = SvRV(sstr); | |
a5f75d66 | 3561 | if (sstr == dstr) { |
1d7c1841 GS |
3562 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3563 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3564 | { | |
a5f75d66 | 3565 | GvIMPORTED_on(dstr); |
1d7c1841 | 3566 | } |
a5f75d66 AD |
3567 | GvMULTI_on(dstr); |
3568 | return; | |
3569 | } | |
c07a80fd | 3570 | goto glob_assign; |
3571 | } | |
ed6116ce | 3572 | break; |
463ee0b2 | 3573 | case SVt_PV: |
fc36a67e | 3574 | case SVt_PVFM: |
8990e307 | 3575 | if (dtype < SVt_PV) |
463ee0b2 | 3576 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3577 | break; |
3578 | case SVt_PVIV: | |
8990e307 | 3579 | if (dtype < SVt_PVIV) |
463ee0b2 | 3580 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3581 | break; |
3582 | case SVt_PVNV: | |
8990e307 | 3583 | if (dtype < SVt_PVNV) |
463ee0b2 | 3584 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3585 | break; |
4633a7c4 LW |
3586 | case SVt_PVAV: |
3587 | case SVt_PVHV: | |
3588 | case SVt_PVCV: | |
4633a7c4 | 3589 | case SVt_PVIO: |
533c011a | 3590 | if (PL_op) |
cea2e8a9 | 3591 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
22c35a8c | 3592 | PL_op_name[PL_op->op_type]); |
4633a7c4 | 3593 | else |
cea2e8a9 | 3594 | Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); |
4633a7c4 LW |
3595 | break; |
3596 | ||
79072805 | 3597 | case SVt_PVGV: |
8990e307 | 3598 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3599 | glob_assign: |
a5f75d66 | 3600 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
3601 | char *name = GvNAME(sstr); |
3602 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 3603 | sv_upgrade(dstr, SVt_PVGV); |
14befaf4 | 3604 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 3605 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
3606 | GvNAME(dstr) = savepvn(name, len); |
3607 | GvNAMELEN(dstr) = len; | |
3608 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3609 | } | |
7bac28a0 | 3610 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3611 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3612 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3613 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3614 | GvNAME(dstr)); |
5bd07a3d DM |
3615 | |
3616 | #ifdef GV_SHARED_CHECK | |
3617 | if (GvSHARED((GV*)dstr)) { | |
3618 | Perl_croak(aTHX_ PL_no_modify); | |
3619 | } | |
3620 | #endif | |
3621 | ||
a0d0e21e | 3622 | (void)SvOK_off(dstr); |
a5f75d66 | 3623 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3624 | gp_free((GV*)dstr); |
79072805 | 3625 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3626 | if (SvTAINTED(sstr)) |
3627 | SvTAINT(dstr); | |
1d7c1841 GS |
3628 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3629 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3630 | { | |
a5f75d66 | 3631 | GvIMPORTED_on(dstr); |
1d7c1841 | 3632 | } |
a5f75d66 | 3633 | GvMULTI_on(dstr); |
79072805 LW |
3634 | return; |
3635 | } | |
3636 | /* FALL THROUGH */ | |
3637 | ||
3638 | default: | |
8d6d96c1 | 3639 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab CS |
3640 | mg_get(sstr); |
3641 | if (SvTYPE(sstr) != stype) { | |
3642 | stype = SvTYPE(sstr); | |
3643 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3644 | goto glob_assign; | |
3645 | } | |
3646 | } | |
ded42b9f | 3647 | if (stype == SVt_PVLV) |
6fc92669 | 3648 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3649 | else |
6fc92669 | 3650 | (void)SvUPGRADE(dstr, stype); |
79072805 LW |
3651 | } |
3652 | ||
8990e307 LW |
3653 | sflags = SvFLAGS(sstr); |
3654 | ||
3655 | if (sflags & SVf_ROK) { | |
3656 | if (dtype >= SVt_PV) { | |
3657 | if (dtype == SVt_PVGV) { | |
3658 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3659 | SV *dref = 0; | |
a5f75d66 | 3660 | int intro = GvINTRO(dstr); |
a0d0e21e | 3661 | |
5bd07a3d DM |
3662 | #ifdef GV_SHARED_CHECK |
3663 | if (GvSHARED((GV*)dstr)) { | |
3664 | Perl_croak(aTHX_ PL_no_modify); | |
3665 | } | |
3666 | #endif | |
3667 | ||
a0d0e21e | 3668 | if (intro) { |
a5f75d66 | 3669 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3670 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3671 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3672 | } |
a5f75d66 | 3673 | GvMULTI_on(dstr); |
8990e307 LW |
3674 | switch (SvTYPE(sref)) { |
3675 | case SVt_PVAV: | |
a0d0e21e LW |
3676 | if (intro) |
3677 | SAVESPTR(GvAV(dstr)); | |
3678 | else | |
3679 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3680 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3681 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3682 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3683 | { | |
a5f75d66 | 3684 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3685 | } |
8990e307 LW |
3686 | break; |
3687 | case SVt_PVHV: | |
a0d0e21e LW |
3688 | if (intro) |
3689 | SAVESPTR(GvHV(dstr)); | |
3690 | else | |
3691 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3692 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3693 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3694 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3695 | { | |
a5f75d66 | 3696 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3697 | } |
8990e307 LW |
3698 | break; |
3699 | case SVt_PVCV: | |
8ebc5c01 | 3700 | if (intro) { |
3701 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3702 | SvREFCNT_dec(GvCV(dstr)); | |
3703 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3704 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3705 | PL_sub_generation++; |
8ebc5c01 | 3706 | } |
a0d0e21e | 3707 | SAVESPTR(GvCV(dstr)); |
8ebc5c01 | 3708 | } |
68dc0745 | 3709 | else |
3710 | dref = (SV*)GvCV(dstr); | |
3711 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3712 | CV* cv = GvCV(dstr); |
4633a7c4 | 3713 | if (cv) { |
68dc0745 | 3714 | if (!GvCVGEN((GV*)dstr) && |
3715 | (CvROOT(cv) || CvXSUB(cv))) | |
3716 | { | |
7bac28a0 | 3717 | /* ahem, death to those who redefine |
3718 | * active sort subs */ | |
3280af22 NIS |
3719 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
3720 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 3721 | Perl_croak(aTHX_ |
7bac28a0 | 3722 | "Can't redefine active sort subroutine %s", |
3723 | GvENAME((GV*)dstr)); | |
beab0874 JT |
3724 | /* Redefining a sub - warning is mandatory if |
3725 | it was a const and its value changed. */ | |
3726 | if (ckWARN(WARN_REDEFINE) | |
3727 | || (CvCONST(cv) | |
3728 | && (!CvCONST((CV*)sref) | |
3729 | || sv_cmp(cv_const_sv(cv), | |
3730 | cv_const_sv((CV*)sref))))) | |
3731 | { | |
3732 | Perl_warner(aTHX_ WARN_REDEFINE, | |
3733 | CvCONST(cv) | |
3734 | ? "Constant subroutine %s redefined" | |
47deb5e7 | 3735 | : "Subroutine %s redefined", |
beab0874 JT |
3736 | GvENAME((GV*)dstr)); |
3737 | } | |
9607fc9c | 3738 | } |
3fe9a6f1 | 3739 | cv_ckproto(cv, (GV*)dstr, |
3740 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 3741 | } |
a5f75d66 | 3742 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 3743 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 3744 | GvASSUMECV_on(dstr); |
3280af22 | 3745 | PL_sub_generation++; |
a5f75d66 | 3746 | } |
39bac7f7 | 3747 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
3748 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3749 | { | |
a5f75d66 | 3750 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 3751 | } |
8990e307 | 3752 | break; |
91bba347 LW |
3753 | case SVt_PVIO: |
3754 | if (intro) | |
3755 | SAVESPTR(GvIOp(dstr)); | |
3756 | else | |
3757 | dref = (SV*)GvIOp(dstr); | |
3758 | GvIOp(dstr) = (IO*)sref; | |
3759 | break; | |
f4d13ee9 JH |
3760 | case SVt_PVFM: |
3761 | if (intro) | |
3762 | SAVESPTR(GvFORM(dstr)); | |
3763 | else | |
3764 | dref = (SV*)GvFORM(dstr); | |
3765 | GvFORM(dstr) = (CV*)sref; | |
3766 | break; | |
8990e307 | 3767 | default: |
a0d0e21e LW |
3768 | if (intro) |
3769 | SAVESPTR(GvSV(dstr)); | |
3770 | else | |
3771 | dref = (SV*)GvSV(dstr); | |
8990e307 | 3772 | GvSV(dstr) = sref; |
39bac7f7 | 3773 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
3774 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3775 | { | |
a5f75d66 | 3776 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 3777 | } |
8990e307 LW |
3778 | break; |
3779 | } | |
3780 | if (dref) | |
3781 | SvREFCNT_dec(dref); | |
a0d0e21e LW |
3782 | if (intro) |
3783 | SAVEFREESV(sref); | |
27c9684d AP |
3784 | if (SvTAINTED(sstr)) |
3785 | SvTAINT(dstr); | |
8990e307 LW |
3786 | return; |
3787 | } | |
a0d0e21e | 3788 | if (SvPVX(dstr)) { |
760ac839 | 3789 | (void)SvOOK_off(dstr); /* backoff */ |
50483b2c JD |
3790 | if (SvLEN(dstr)) |
3791 | Safefree(SvPVX(dstr)); | |
a0d0e21e LW |
3792 | SvLEN(dstr)=SvCUR(dstr)=0; |
3793 | } | |
8990e307 | 3794 | } |
a0d0e21e | 3795 | (void)SvOK_off(dstr); |
8990e307 | 3796 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 3797 | SvROK_on(dstr); |
8990e307 | 3798 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3799 | SvNOKp_on(dstr); |
3800 | /* Only set the public OK flag if the source has public OK. */ | |
3801 | if (sflags & SVf_NOK) | |
3802 | SvFLAGS(dstr) |= SVf_NOK; | |
ed6116ce LW |
3803 | SvNVX(dstr) = SvNVX(sstr); |
3804 | } | |
8990e307 | 3805 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3806 | (void)SvIOKp_on(dstr); |
3807 | if (sflags & SVf_IOK) | |
3808 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3809 | if (sflags & SVf_IVisUV) |
25da4f38 | 3810 | SvIsUV_on(dstr); |
3332b3c1 | 3811 | SvIVX(dstr) = SvIVX(sstr); |
ed6116ce | 3812 | } |
a0d0e21e LW |
3813 | if (SvAMAGIC(sstr)) { |
3814 | SvAMAGIC_on(dstr); | |
3815 | } | |
ed6116ce | 3816 | } |
8990e307 | 3817 | else if (sflags & SVp_POK) { |
79072805 LW |
3818 | |
3819 | /* | |
3820 | * Check to see if we can just swipe the string. If so, it's a | |
3821 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
3822 | * It might even be a win on short strings if SvPVX(dstr) |
3823 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
3824 | */ |
3825 | ||
ff68c719 | 3826 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 3827 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
1c846c1f | 3828 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ |
4c8f17b9 | 3829 | SvLEN(sstr) && /* and really is a string */ |
645c22ef DM |
3830 | /* and won't be needed again, potentially */ |
3831 | !(PL_op && PL_op->op_type == OP_AASSIGN)) | |
a5f75d66 | 3832 | { |
adbc6bb1 | 3833 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
3834 | if (SvOOK(dstr)) { |
3835 | SvFLAGS(dstr) &= ~SVf_OOK; | |
3836 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
3837 | } | |
50483b2c | 3838 | else if (SvLEN(dstr)) |
a5f75d66 | 3839 | Safefree(SvPVX(dstr)); |
79072805 | 3840 | } |
a5f75d66 | 3841 | (void)SvPOK_only(dstr); |
463ee0b2 | 3842 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
3843 | SvLEN_set(dstr, SvLEN(sstr)); |
3844 | SvCUR_set(dstr, SvCUR(sstr)); | |
f4e86e0f | 3845 | |
79072805 | 3846 | SvTEMP_off(dstr); |
645c22ef | 3847 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ |
79072805 LW |
3848 | SvPV_set(sstr, Nullch); |
3849 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
3850 | SvCUR_set(sstr, 0); |
3851 | SvTEMP_off(sstr); | |
79072805 | 3852 | } |
645c22ef | 3853 | else { /* have to copy actual string */ |
8990e307 LW |
3854 | STRLEN len = SvCUR(sstr); |
3855 | ||
645c22ef | 3856 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ |
8990e307 LW |
3857 | Move(SvPVX(sstr),SvPVX(dstr),len,char); |
3858 | SvCUR_set(dstr, len); | |
3859 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 3860 | (void)SvPOK_only(dstr); |
79072805 | 3861 | } |
9aa983d2 | 3862 | if (sflags & SVf_UTF8) |
a7cb1f99 | 3863 | SvUTF8_on(dstr); |
79072805 | 3864 | /*SUPPRESS 560*/ |
8990e307 | 3865 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3866 | SvNOKp_on(dstr); |
3867 | if (sflags & SVf_NOK) | |
3868 | SvFLAGS(dstr) |= SVf_NOK; | |
463ee0b2 | 3869 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 3870 | } |
8990e307 | 3871 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3872 | (void)SvIOKp_on(dstr); |
3873 | if (sflags & SVf_IOK) | |
3874 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3875 | if (sflags & SVf_IVisUV) |
25da4f38 | 3876 | SvIsUV_on(dstr); |
463ee0b2 | 3877 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
3878 | } |
3879 | } | |
8990e307 | 3880 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
3881 | if (sflags & SVf_IOK) |
3882 | (void)SvIOK_only(dstr); | |
3883 | else { | |
9cbac4c7 DM |
3884 | (void)SvOK_off(dstr); |
3885 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
3886 | } |
3887 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 3888 | if (sflags & SVf_IVisUV) |
25da4f38 | 3889 | SvIsUV_on(dstr); |
3332b3c1 JH |
3890 | SvIVX(dstr) = SvIVX(sstr); |
3891 | if (sflags & SVp_NOK) { | |
3892 | if (sflags & SVf_NOK) | |
3893 | (void)SvNOK_on(dstr); | |
3894 | else | |
3895 | (void)SvNOKp_on(dstr); | |
3896 | SvNVX(dstr) = SvNVX(sstr); | |
3897 | } | |
3898 | } | |
3899 | else if (sflags & SVp_NOK) { | |
3900 | if (sflags & SVf_NOK) | |
3901 | (void)SvNOK_only(dstr); | |
3902 | else { | |
9cbac4c7 | 3903 | (void)SvOK_off(dstr); |
3332b3c1 JH |
3904 | SvNOKp_on(dstr); |
3905 | } | |
3906 | SvNVX(dstr) = SvNVX(sstr); | |
79072805 LW |
3907 | } |
3908 | else { | |
20408e3c | 3909 | if (dtype == SVt_PVGV) { |
e476b1b5 GS |
3910 | if (ckWARN(WARN_MISC)) |
3911 | Perl_warner(aTHX_ WARN_MISC, "Undefined value assigned to typeglob"); | |
20408e3c GS |
3912 | } |
3913 | else | |
3914 | (void)SvOK_off(dstr); | |
a0d0e21e | 3915 | } |
27c9684d AP |
3916 | if (SvTAINTED(sstr)) |
3917 | SvTAINT(dstr); | |
79072805 LW |
3918 | } |
3919 | ||
954c1994 GS |
3920 | /* |
3921 | =for apidoc sv_setsv_mg | |
3922 | ||
3923 | Like C<sv_setsv>, but also handles 'set' magic. | |
3924 | ||
3925 | =cut | |
3926 | */ | |
3927 | ||
79072805 | 3928 | void |
864dbfa3 | 3929 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
3930 | { |
3931 | sv_setsv(dstr,sstr); | |
3932 | SvSETMAGIC(dstr); | |
3933 | } | |
3934 | ||
954c1994 GS |
3935 | /* |
3936 | =for apidoc sv_setpvn | |
3937 | ||
3938 | Copies a string into an SV. The C<len> parameter indicates the number of | |
3939 | bytes to be copied. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
3940 | ||
3941 | =cut | |
3942 | */ | |
3943 | ||
ef50df4b | 3944 | void |
864dbfa3 | 3945 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 3946 | { |
c6f8c383 | 3947 | register char *dptr; |
22c522df | 3948 | |
2213622d | 3949 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 3950 | if (!ptr) { |
a0d0e21e | 3951 | (void)SvOK_off(sv); |
463ee0b2 LW |
3952 | return; |
3953 | } | |
22c522df JH |
3954 | else { |
3955 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
3956 | IV iv = len; | |
9c5ffd7c JH |
3957 | if (iv < 0) |
3958 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 3959 | } |
6fc92669 | 3960 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 3961 | |
79072805 | 3962 | SvGROW(sv, len + 1); |
c6f8c383 GA |
3963 | dptr = SvPVX(sv); |
3964 | Move(ptr,dptr,len,char); | |
3965 | dptr[len] = '\0'; | |
79072805 | 3966 | SvCUR_set(sv, len); |
1aa99e6b | 3967 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 3968 | SvTAINT(sv); |
79072805 LW |
3969 | } |
3970 | ||
954c1994 GS |
3971 | /* |
3972 | =for apidoc sv_setpvn_mg | |
3973 | ||
3974 | Like C<sv_setpvn>, but also handles 'set' magic. | |
3975 | ||
3976 | =cut | |
3977 | */ | |
3978 | ||
79072805 | 3979 | void |
864dbfa3 | 3980 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
3981 | { |
3982 | sv_setpvn(sv,ptr,len); | |
3983 | SvSETMAGIC(sv); | |
3984 | } | |
3985 | ||
954c1994 GS |
3986 | /* |
3987 | =for apidoc sv_setpv | |
3988 | ||
3989 | Copies a string into an SV. The string must be null-terminated. Does not | |
3990 | handle 'set' magic. See C<sv_setpv_mg>. | |
3991 | ||
3992 | =cut | |
3993 | */ | |
3994 | ||
ef50df4b | 3995 | void |
864dbfa3 | 3996 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
3997 | { |
3998 | register STRLEN len; | |
3999 | ||
2213622d | 4000 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4001 | if (!ptr) { |
a0d0e21e | 4002 | (void)SvOK_off(sv); |
463ee0b2 LW |
4003 | return; |
4004 | } | |
79072805 | 4005 | len = strlen(ptr); |
6fc92669 | 4006 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4007 | |
79072805 | 4008 | SvGROW(sv, len + 1); |
463ee0b2 | 4009 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4010 | SvCUR_set(sv, len); |
1aa99e6b | 4011 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4012 | SvTAINT(sv); |
4013 | } | |
4014 | ||
954c1994 GS |
4015 | /* |
4016 | =for apidoc sv_setpv_mg | |
4017 | ||
4018 | Like C<sv_setpv>, but also handles 'set' magic. | |
4019 | ||
4020 | =cut | |
4021 | */ | |
4022 | ||
463ee0b2 | 4023 | void |
864dbfa3 | 4024 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4025 | { |
4026 | sv_setpv(sv,ptr); | |
4027 | SvSETMAGIC(sv); | |
4028 | } | |
4029 | ||
954c1994 GS |
4030 | /* |
4031 | =for apidoc sv_usepvn | |
4032 | ||
4033 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4034 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4035 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4036 | string length, C<len>, must be supplied. This function will realloc the | |
4037 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4038 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4039 | See C<sv_usepvn_mg>. | |
4040 | ||
4041 | =cut | |
4042 | */ | |
4043 | ||
ef50df4b | 4044 | void |
864dbfa3 | 4045 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4046 | { |
2213622d | 4047 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 4048 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4049 | if (!ptr) { |
a0d0e21e | 4050 | (void)SvOK_off(sv); |
463ee0b2 LW |
4051 | return; |
4052 | } | |
a0ed51b3 | 4053 | (void)SvOOK_off(sv); |
50483b2c | 4054 | if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 LW |
4055 | Safefree(SvPVX(sv)); |
4056 | Renew(ptr, len+1, char); | |
4057 | SvPVX(sv) = ptr; | |
4058 | SvCUR_set(sv, len); | |
4059 | SvLEN_set(sv, len+1); | |
4060 | *SvEND(sv) = '\0'; | |
1aa99e6b | 4061 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4062 | SvTAINT(sv); |
79072805 LW |
4063 | } |
4064 | ||
954c1994 GS |
4065 | /* |
4066 | =for apidoc sv_usepvn_mg | |
4067 | ||
4068 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4069 | ||
4070 | =cut | |
4071 | */ | |
4072 | ||
ef50df4b | 4073 | void |
864dbfa3 | 4074 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4075 | { |
51c1089b | 4076 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4077 | SvSETMAGIC(sv); |
4078 | } | |
4079 | ||
645c22ef DM |
4080 | /* |
4081 | =for apidoc sv_force_normal_flags | |
4082 | ||
4083 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4084 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4085 | an xpvmg. The C<flags> parameter gets passed to C<sv_unref_flags()> | |
4086 | when unrefing. C<sv_force_normal> calls this function with flags set to 0. | |
4087 | ||
4088 | =cut | |
4089 | */ | |
4090 | ||
6fc92669 | 4091 | void |
840a7b70 | 4092 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4093 | { |
2213622d | 4094 | if (SvREADONLY(sv)) { |
1c846c1f NIS |
4095 | if (SvFAKE(sv)) { |
4096 | char *pvx = SvPVX(sv); | |
4097 | STRLEN len = SvCUR(sv); | |
4098 | U32 hash = SvUVX(sv); | |
4099 | SvGROW(sv, len + 1); | |
4100 | Move(pvx,SvPVX(sv),len,char); | |
4101 | *SvEND(sv) = '\0'; | |
4102 | SvFAKE_off(sv); | |
4103 | SvREADONLY_off(sv); | |
c3654f1a | 4104 | unsharepvn(pvx,SvUTF8(sv)?-len:len,hash); |
1c846c1f NIS |
4105 | } |
4106 | else if (PL_curcop != &PL_compiling) | |
cea2e8a9 | 4107 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4108 | } |
2213622d | 4109 | if (SvROK(sv)) |
840a7b70 | 4110 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4111 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4112 | sv_unglob(sv); | |
0f15f207 | 4113 | } |
1c846c1f | 4114 | |
645c22ef DM |
4115 | /* |
4116 | =for apidoc sv_force_normal | |
4117 | ||
4118 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4119 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4120 | an xpvmg. See also C<sv_force_normal_flags>. | |
4121 | ||
4122 | =cut | |
4123 | */ | |
4124 | ||
840a7b70 IZ |
4125 | void |
4126 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4127 | { | |
4128 | sv_force_normal_flags(sv, 0); | |
4129 | } | |
4130 | ||
954c1994 GS |
4131 | /* |
4132 | =for apidoc sv_chop | |
4133 | ||
1c846c1f | 4134 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4135 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4136 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4137 | string. Uses the "OOK hack". |
954c1994 GS |
4138 | |
4139 | =cut | |
4140 | */ | |
4141 | ||
79072805 | 4142 | void |
645c22ef | 4143 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
4144 | { |
4145 | register STRLEN delta; | |
4146 | ||
a0d0e21e | 4147 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4148 | return; |
2213622d | 4149 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4150 | if (SvTYPE(sv) < SVt_PVIV) |
4151 | sv_upgrade(sv,SVt_PVIV); | |
4152 | ||
4153 | if (!SvOOK(sv)) { | |
50483b2c JD |
4154 | if (!SvLEN(sv)) { /* make copy of shared string */ |
4155 | char *pvx = SvPVX(sv); | |
4156 | STRLEN len = SvCUR(sv); | |
4157 | SvGROW(sv, len + 1); | |
4158 | Move(pvx,SvPVX(sv),len,char); | |
4159 | *SvEND(sv) = '\0'; | |
4160 | } | |
463ee0b2 | 4161 | SvIVX(sv) = 0; |
79072805 LW |
4162 | SvFLAGS(sv) |= SVf_OOK; |
4163 | } | |
25da4f38 | 4164 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV); |
463ee0b2 | 4165 | delta = ptr - SvPVX(sv); |
79072805 LW |
4166 | SvLEN(sv) -= delta; |
4167 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
4168 | SvPVX(sv) += delta; |
4169 | SvIVX(sv) += delta; | |
79072805 LW |
4170 | } |
4171 | ||
954c1994 GS |
4172 | /* |
4173 | =for apidoc sv_catpvn | |
4174 | ||
4175 | Concatenates the string onto the end of the string which is in the SV. The | |
d5ce4a7c GA |
4176 | C<len> indicates number of bytes to copy. If the SV has the UTF8 |
4177 | status set, then the bytes appended should be valid UTF8. | |
4178 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. | |
954c1994 GS |
4179 | |
4180 | =cut | |
4181 | */ | |
4182 | ||
8d6d96c1 HS |
4183 | /* sv_catpvn() is aliased to Perl_sv_catpvn_macro; this function provided |
4184 | for binary compatibility only | |
4185 | */ | |
79072805 | 4186 | void |
8d6d96c1 | 4187 | Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen) |
79072805 | 4188 | { |
8d6d96c1 HS |
4189 | sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC); |
4190 | } | |
a0d0e21e | 4191 | |
8d6d96c1 HS |
4192 | /* |
4193 | =for apidoc sv_catpvn_flags | |
4194 | ||
4195 | Concatenates the string onto the end of the string which is in the SV. The | |
4196 | C<len> indicates number of bytes to copy. If the SV has the UTF8 | |
4197 | status set, then the bytes appended should be valid UTF8. | |
4198 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if | |
4199 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4200 | in terms of this function. | |
4201 | ||
4202 | =cut | |
4203 | */ | |
4204 | ||
4205 | void | |
4206 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4207 | { | |
4208 | STRLEN dlen; | |
4209 | char *dstr; | |
4210 | ||
4211 | dstr = SvPV_force_flags(dsv, dlen, flags); | |
4212 | SvGROW(dsv, dlen + slen + 1); | |
4213 | if (sstr == dstr) | |
4214 | sstr = SvPVX(dsv); | |
4215 | Move(sstr, SvPVX(dsv) + dlen, slen, char); | |
4216 | SvCUR(dsv) += slen; | |
4217 | *SvEND(dsv) = '\0'; | |
4218 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4219 | SvTAINT(dsv); | |
79072805 LW |
4220 | } |
4221 | ||
954c1994 GS |
4222 | /* |
4223 | =for apidoc sv_catpvn_mg | |
4224 | ||
4225 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4226 | ||
4227 | =cut | |
4228 | */ | |
4229 | ||
79072805 | 4230 | void |
864dbfa3 | 4231 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4232 | { |
4233 | sv_catpvn(sv,ptr,len); | |
4234 | SvSETMAGIC(sv); | |
4235 | } | |
4236 | ||
954c1994 GS |
4237 | /* |
4238 | =for apidoc sv_catsv | |
4239 | ||
13e8c8e3 JH |
4240 | Concatenates the string from SV C<ssv> onto the end of the string in |
4241 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4242 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4243 | |
13e8c8e3 | 4244 | =cut */ |
954c1994 | 4245 | |
8d6d96c1 HS |
4246 | /* sv_catsv() is aliased to Perl_sv_catsv_macro; this function provided |
4247 | for binary compatibility only | |
4248 | */ | |
4249 | void | |
4250 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) | |
4251 | { | |
4252 | sv_catsv_flags(dstr, sstr, SV_GMAGIC); | |
4253 | } | |
4254 | ||
4255 | /* | |
4256 | =for apidoc sv_catsv_flags | |
4257 | ||
4258 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4259 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4260 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4261 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4262 | ||
4263 | =cut */ | |
4264 | ||
ef50df4b | 4265 | void |
8d6d96c1 | 4266 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4267 | { |
13e8c8e3 JH |
4268 | char *spv; |
4269 | STRLEN slen; | |
46199a12 | 4270 | if (!ssv) |
79072805 | 4271 | return; |
46199a12 | 4272 | if ((spv = SvPV(ssv, slen))) { |
46199a12 | 4273 | bool sutf8 = DO_UTF8(ssv); |
8d6d96c1 | 4274 | bool dutf8; |
13e8c8e3 | 4275 | |
8d6d96c1 HS |
4276 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4277 | mg_get(dsv); | |
4278 | dutf8 = DO_UTF8(dsv); | |
4279 | ||
4280 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4281 | if (dutf8) { |
46199a12 | 4282 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4283 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4284 | |
46199a12 | 4285 | sv_utf8_upgrade(csv); |
8d6d96c1 | 4286 | spv = SvPV(csv, slen); |
13e8c8e3 | 4287 | } |
8d6d96c1 HS |
4288 | else |
4289 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4290 | } |
8d6d96c1 | 4291 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4292 | } |
79072805 LW |
4293 | } |
4294 | ||
954c1994 GS |
4295 | /* |
4296 | =for apidoc sv_catsv_mg | |
4297 | ||
4298 | Like C<sv_catsv>, but also handles 'set' magic. | |
4299 | ||
4300 | =cut | |
4301 | */ | |
4302 | ||
79072805 | 4303 | void |
46199a12 | 4304 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4305 | { |
46199a12 JH |
4306 | sv_catsv(dsv,ssv); |
4307 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4308 | } |
4309 | ||
954c1994 GS |
4310 | /* |
4311 | =for apidoc sv_catpv | |
4312 | ||
4313 | Concatenates the string onto the end of the string which is in the SV. | |
d5ce4a7c GA |
4314 | If the SV has the UTF8 status set, then the bytes appended should be |
4315 | valid UTF8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4316 | |
d5ce4a7c | 4317 | =cut */ |
954c1994 | 4318 | |
ef50df4b | 4319 | void |
0c981600 | 4320 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4321 | { |
4322 | register STRLEN len; | |
463ee0b2 | 4323 | STRLEN tlen; |
748a9306 | 4324 | char *junk; |
79072805 | 4325 | |
0c981600 | 4326 | if (!ptr) |
79072805 | 4327 | return; |
748a9306 | 4328 | junk = SvPV_force(sv, tlen); |
0c981600 | 4329 | len = strlen(ptr); |
463ee0b2 | 4330 | SvGROW(sv, tlen + len + 1); |
0c981600 JH |
4331 | if (ptr == junk) |
4332 | ptr = SvPVX(sv); | |
4333 | Move(ptr,SvPVX(sv)+tlen,len+1,char); | |
79072805 | 4334 | SvCUR(sv) += len; |
d41ff1b8 | 4335 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4336 | SvTAINT(sv); |
79072805 LW |
4337 | } |
4338 | ||
954c1994 GS |
4339 | /* |
4340 | =for apidoc sv_catpv_mg | |
4341 | ||
4342 | Like C<sv_catpv>, but also handles 'set' magic. | |
4343 | ||
4344 | =cut | |
4345 | */ | |
4346 | ||
ef50df4b | 4347 | void |
0c981600 | 4348 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4349 | { |
0c981600 | 4350 | sv_catpv(sv,ptr); |
ef50df4b GS |
4351 | SvSETMAGIC(sv); |
4352 | } | |
4353 | ||
645c22ef DM |
4354 | /* |
4355 | =for apidoc newSV | |
4356 | ||
4357 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4358 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4359 | macro. | |
4360 | ||
4361 | =cut | |
4362 | */ | |
4363 | ||
79072805 | 4364 | SV * |
864dbfa3 | 4365 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4366 | { |
4367 | register SV *sv; | |
1c846c1f | 4368 | |
4561caa4 | 4369 | new_SV(sv); |
79072805 LW |
4370 | if (len) { |
4371 | sv_upgrade(sv, SVt_PV); | |
4372 | SvGROW(sv, len + 1); | |
4373 | } | |
4374 | return sv; | |
4375 | } | |
4376 | ||
954c1994 GS |
4377 | /* |
4378 | =for apidoc sv_magic | |
4379 | ||
645c22ef DM |
4380 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4381 | then adds a new magic item of type C<how> to the head of the magic list. | |
4382 | ||
4383 | C<name> is assumed to contain an C<SV*> if C<(name && namelen == HEf_SVKEY)> | |
954c1994 GS |
4384 | |
4385 | =cut | |
4386 | */ | |
4387 | ||
79072805 | 4388 | void |
864dbfa3 | 4389 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) |
79072805 LW |
4390 | { |
4391 | MAGIC* mg; | |
1c846c1f | 4392 | |
0f15f207 | 4393 | if (SvREADONLY(sv)) { |
14befaf4 | 4394 | if (PL_curcop != &PL_compiling |
14befaf4 DM |
4395 | && how != PERL_MAGIC_regex_global |
4396 | && how != PERL_MAGIC_bm | |
4397 | && how != PERL_MAGIC_fm | |
6fa402ec | 4398 | && how != PERL_MAGIC_sv |
14befaf4 DM |
4399 | ) |
4400 | { | |
cea2e8a9 | 4401 | Perl_croak(aTHX_ PL_no_modify); |
14befaf4 | 4402 | } |
0f15f207 | 4403 | } |
14befaf4 | 4404 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { |
748a9306 | 4405 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { |
14befaf4 | 4406 | if (how == PERL_MAGIC_taint) |
565764a8 | 4407 | mg->mg_len |= 1; |
463ee0b2 | 4408 | return; |
748a9306 | 4409 | } |
463ee0b2 LW |
4410 | } |
4411 | else { | |
c6f8c383 | 4412 | (void)SvUPGRADE(sv, SVt_PVMG); |
463ee0b2 | 4413 | } |
79072805 LW |
4414 | Newz(702,mg, 1, MAGIC); |
4415 | mg->mg_moremagic = SvMAGIC(sv); | |
79072805 | 4416 | SvMAGIC(sv) = mg; |
75f9d97a JH |
4417 | |
4418 | /* Some magic sontains a reference loop, where the sv and object refer to | |
4419 | each other. To prevent a avoid a reference loop that would prevent such | |
4420 | objects being freed, we look for such loops and if we find one we avoid | |
4421 | incrementing the object refcount. */ | |
14befaf4 DM |
4422 | if (!obj || obj == sv || |
4423 | how == PERL_MAGIC_arylen || | |
4424 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
4425 | (SvTYPE(obj) == SVt_PVGV && |
4426 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4427 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
4428 | GvFORM(obj) == (CV*)sv))) | |
4429 | { | |
8990e307 | 4430 | mg->mg_obj = obj; |
75f9d97a | 4431 | } |
85e6fe83 | 4432 | else { |
8990e307 | 4433 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4434 | mg->mg_flags |= MGf_REFCOUNTED; |
4435 | } | |
79072805 | 4436 | mg->mg_type = how; |
565764a8 | 4437 | mg->mg_len = namlen; |
9cbac4c7 | 4438 | if (name) { |
1edc1566 | 4439 | if (namlen >= 0) |
4440 | mg->mg_ptr = savepvn(name, namlen); | |
c6ee37c5 | 4441 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4442 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
9cbac4c7 | 4443 | } |
1c846c1f | 4444 | |
79072805 | 4445 | switch (how) { |
14befaf4 | 4446 | case PERL_MAGIC_sv: |
22c35a8c | 4447 | mg->mg_virtual = &PL_vtbl_sv; |
79072805 | 4448 | break; |
14befaf4 | 4449 | case PERL_MAGIC_overload: |
22c35a8c | 4450 | mg->mg_virtual = &PL_vtbl_amagic; |
a0d0e21e | 4451 | break; |
14befaf4 | 4452 | case PERL_MAGIC_overload_elem: |
22c35a8c | 4453 | mg->mg_virtual = &PL_vtbl_amagicelem; |
a0d0e21e | 4454 | break; |
14befaf4 | 4455 | case PERL_MAGIC_overload_table: |
d460ef45 | 4456 | mg->mg_virtual = &PL_vtbl_ovrld; |
a0d0e21e | 4457 | break; |
14befaf4 | 4458 | case PERL_MAGIC_bm: |
22c35a8c | 4459 | mg->mg_virtual = &PL_vtbl_bm; |
79072805 | 4460 | break; |
14befaf4 | 4461 | case PERL_MAGIC_regdata: |
22c35a8c | 4462 | mg->mg_virtual = &PL_vtbl_regdata; |
6cef1e77 | 4463 | break; |
14befaf4 | 4464 | case PERL_MAGIC_regdatum: |
22c35a8c | 4465 | mg->mg_virtual = &PL_vtbl_regdatum; |
6cef1e77 | 4466 | break; |
14befaf4 | 4467 | case PERL_MAGIC_env: |
22c35a8c | 4468 | mg->mg_virtual = &PL_vtbl_env; |
79072805 | 4469 | break; |
14befaf4 | 4470 | case PERL_MAGIC_fm: |
22c35a8c | 4471 | mg->mg_virtual = &PL_vtbl_fm; |
55497cff | 4472 | break; |
14befaf4 | 4473 | case PERL_MAGIC_envelem: |
22c35a8c | 4474 | mg->mg_virtual = &PL_vtbl_envelem; |
79072805 | 4475 | break; |
14befaf4 | 4476 | case PERL_MAGIC_regex_global: |
22c35a8c | 4477 | mg->mg_virtual = &PL_vtbl_mglob; |
93a17b20 | 4478 | break; |
14befaf4 | 4479 | case PERL_MAGIC_isa: |
22c35a8c | 4480 | mg->mg_virtual = &PL_vtbl_isa; |
463ee0b2 | 4481 | break; |
14befaf4 | 4482 | case PERL_MAGIC_isaelem: |
22c35a8c | 4483 | mg->mg_virtual = &PL_vtbl_isaelem; |
463ee0b2 | 4484 | break; |
14befaf4 | 4485 | case PERL_MAGIC_nkeys: |
22c35a8c | 4486 | mg->mg_virtual = &PL_vtbl_nkeys; |
16660edb | 4487 | break; |
14befaf4 | 4488 | case PERL_MAGIC_dbfile: |
a0d0e21e | 4489 | SvRMAGICAL_on(sv); |
93a17b20 LW |
4490 | mg->mg_virtual = 0; |
4491 | break; | |
14befaf4 | 4492 | case PERL_MAGIC_dbline: |
22c35a8c | 4493 | mg->mg_virtual = &PL_vtbl_dbline; |
79072805 | 4494 | break; |
f93b4edd | 4495 | #ifdef USE_THREADS |
14befaf4 | 4496 | case PERL_MAGIC_mutex: |
22c35a8c | 4497 | mg->mg_virtual = &PL_vtbl_mutex; |
f93b4edd MB |
4498 | break; |
4499 | #endif /* USE_THREADS */ | |
36477c24 | 4500 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 4501 | case PERL_MAGIC_collxfrm: |
22c35a8c | 4502 | mg->mg_virtual = &PL_vtbl_collxfrm; |
bbce6d69 | 4503 | break; |
36477c24 | 4504 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 4505 | case PERL_MAGIC_tied: |
22c35a8c | 4506 | mg->mg_virtual = &PL_vtbl_pack; |
463ee0b2 | 4507 | break; |
14befaf4 DM |
4508 | case PERL_MAGIC_tiedelem: |
4509 | case PERL_MAGIC_tiedscalar: | |
22c35a8c | 4510 | mg->mg_virtual = &PL_vtbl_packelem; |
463ee0b2 | 4511 | break; |
14befaf4 | 4512 | case PERL_MAGIC_qr: |
22c35a8c | 4513 | mg->mg_virtual = &PL_vtbl_regexp; |
c277df42 | 4514 | break; |
14befaf4 | 4515 | case PERL_MAGIC_sig: |
22c35a8c | 4516 | mg->mg_virtual = &PL_vtbl_sig; |
79072805 | 4517 | break; |
14befaf4 | 4518 | case PERL_MAGIC_sigelem: |
22c35a8c | 4519 | mg->mg_virtual = &PL_vtbl_sigelem; |
79072805 | 4520 | break; |
14befaf4 | 4521 | case PERL_MAGIC_taint: |
22c35a8c | 4522 | mg->mg_virtual = &PL_vtbl_taint; |
565764a8 | 4523 | mg->mg_len = 1; |
463ee0b2 | 4524 | break; |
14befaf4 | 4525 | case PERL_MAGIC_uvar: |
22c35a8c | 4526 | mg->mg_virtual = &PL_vtbl_uvar; |
79072805 | 4527 | break; |
14befaf4 | 4528 | case PERL_MAGIC_vec: |
22c35a8c | 4529 | mg->mg_virtual = &PL_vtbl_vec; |
79072805 | 4530 | break; |
14befaf4 | 4531 | case PERL_MAGIC_substr: |
22c35a8c | 4532 | mg->mg_virtual = &PL_vtbl_substr; |
79072805 | 4533 | break; |
14befaf4 | 4534 | case PERL_MAGIC_defelem: |
22c35a8c | 4535 | mg->mg_virtual = &PL_vtbl_defelem; |
5f05dabc | 4536 | break; |
14befaf4 | 4537 | case PERL_MAGIC_glob: |
22c35a8c | 4538 | mg->mg_virtual = &PL_vtbl_glob; |
79072805 | 4539 | break; |
14befaf4 | 4540 | case PERL_MAGIC_arylen: |
22c35a8c | 4541 | mg->mg_virtual = &PL_vtbl_arylen; |
79072805 | 4542 | break; |
14befaf4 | 4543 | case PERL_MAGIC_pos: |
22c35a8c | 4544 | mg->mg_virtual = &PL_vtbl_pos; |
a0d0e21e | 4545 | break; |
14befaf4 | 4546 | case PERL_MAGIC_backref: |
810b8aa5 GS |
4547 | mg->mg_virtual = &PL_vtbl_backref; |
4548 | break; | |
14befaf4 DM |
4549 | case PERL_MAGIC_ext: |
4550 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
4551 | /* Useful for attaching extension internal data to perl vars. */ |
4552 | /* Note that multiple extensions may clash if magical scalars */ | |
4553 | /* etc holding private data from one are passed to another. */ | |
4554 | SvRMAGICAL_on(sv); | |
a0d0e21e | 4555 | break; |
79072805 | 4556 | default: |
14befaf4 | 4557 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 4558 | } |
8990e307 LW |
4559 | mg_magical(sv); |
4560 | if (SvGMAGICAL(sv)) | |
4561 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 LW |
4562 | } |
4563 | ||
c461cf8f JH |
4564 | /* |
4565 | =for apidoc sv_unmagic | |
4566 | ||
645c22ef | 4567 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
4568 | |
4569 | =cut | |
4570 | */ | |
4571 | ||
463ee0b2 | 4572 | int |
864dbfa3 | 4573 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
4574 | { |
4575 | MAGIC* mg; | |
4576 | MAGIC** mgp; | |
91bba347 | 4577 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
4578 | return 0; |
4579 | mgp = &SvMAGIC(sv); | |
4580 | for (mg = *mgp; mg; mg = *mgp) { | |
4581 | if (mg->mg_type == type) { | |
4582 | MGVTBL* vtbl = mg->mg_virtual; | |
4583 | *mgp = mg->mg_moremagic; | |
1d7c1841 | 4584 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 4585 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 4586 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
565764a8 | 4587 | if (mg->mg_len >= 0) |
1edc1566 | 4588 | Safefree(mg->mg_ptr); |
565764a8 | 4589 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 4590 | SvREFCNT_dec((SV*)mg->mg_ptr); |
9cbac4c7 | 4591 | } |
a0d0e21e LW |
4592 | if (mg->mg_flags & MGf_REFCOUNTED) |
4593 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
4594 | Safefree(mg); |
4595 | } | |
4596 | else | |
4597 | mgp = &mg->mg_moremagic; | |
79072805 | 4598 | } |
91bba347 | 4599 | if (!SvMAGIC(sv)) { |
463ee0b2 | 4600 | SvMAGICAL_off(sv); |
06759ea0 | 4601 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
4602 | } |
4603 | ||
4604 | return 0; | |
79072805 LW |
4605 | } |
4606 | ||
c461cf8f JH |
4607 | /* |
4608 | =for apidoc sv_rvweaken | |
4609 | ||
645c22ef DM |
4610 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
4611 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
4612 | push a back-reference to this RV onto the array of backreferences | |
4613 | associated with that magic. | |
c461cf8f JH |
4614 | |
4615 | =cut | |
4616 | */ | |
4617 | ||
810b8aa5 | 4618 | SV * |
864dbfa3 | 4619 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
4620 | { |
4621 | SV *tsv; | |
4622 | if (!SvOK(sv)) /* let undefs pass */ | |
4623 | return sv; | |
4624 | if (!SvROK(sv)) | |
cea2e8a9 | 4625 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 4626 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 4627 | if (ckWARN(WARN_MISC)) |
cea2e8a9 | 4628 | Perl_warner(aTHX_ WARN_MISC, "Reference is already weak"); |
810b8aa5 GS |
4629 | return sv; |
4630 | } | |
4631 | tsv = SvRV(sv); | |
4632 | sv_add_backref(tsv, sv); | |
4633 | SvWEAKREF_on(sv); | |
1c846c1f | 4634 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
4635 | return sv; |
4636 | } | |
4637 | ||
645c22ef DM |
4638 | /* Give tsv backref magic if it hasn't already got it, then push a |
4639 | * back-reference to sv onto the array associated with the backref magic. | |
4640 | */ | |
4641 | ||
810b8aa5 | 4642 | STATIC void |
cea2e8a9 | 4643 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
4644 | { |
4645 | AV *av; | |
4646 | MAGIC *mg; | |
14befaf4 | 4647 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
4648 | av = (AV*)mg->mg_obj; |
4649 | else { | |
4650 | av = newAV(); | |
14befaf4 | 4651 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
810b8aa5 GS |
4652 | SvREFCNT_dec(av); /* for sv_magic */ |
4653 | } | |
4654 | av_push(av,sv); | |
4655 | } | |
4656 | ||
645c22ef DM |
4657 | /* delete a back-reference to ourselves from the backref magic associated |
4658 | * with the SV we point to. | |
4659 | */ | |
4660 | ||
1c846c1f | 4661 | STATIC void |
cea2e8a9 | 4662 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
4663 | { |
4664 | AV *av; | |
4665 | SV **svp; | |
4666 | I32 i; | |
4667 | SV *tsv = SvRV(sv); | |
4668 | MAGIC *mg; | |
14befaf4 | 4669 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 4670 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
4671 | av = (AV *)mg->mg_obj; |
4672 | svp = AvARRAY(av); | |
4673 | i = AvFILLp(av); | |
4674 | while (i >= 0) { | |
4675 | if (svp[i] == sv) { | |
4676 | svp[i] = &PL_sv_undef; /* XXX */ | |
4677 | } | |
4678 | i--; | |
4679 | } | |
4680 | } | |
4681 | ||
954c1994 GS |
4682 | /* |
4683 | =for apidoc sv_insert | |
4684 | ||
4685 | Inserts a string at the specified offset/length within the SV. Similar to | |
4686 | the Perl substr() function. | |
4687 | ||
4688 | =cut | |
4689 | */ | |
4690 | ||
79072805 | 4691 | void |
864dbfa3 | 4692 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
4693 | { |
4694 | register char *big; | |
4695 | register char *mid; | |
4696 | register char *midend; | |
4697 | register char *bigend; | |
4698 | register I32 i; | |
6ff81951 | 4699 | STRLEN curlen; |
1c846c1f | 4700 | |
79072805 | 4701 | |
8990e307 | 4702 | if (!bigstr) |
cea2e8a9 | 4703 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 4704 | SvPV_force(bigstr, curlen); |
60fa28ff | 4705 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
4706 | if (offset + len > curlen) { |
4707 | SvGROW(bigstr, offset+len+1); | |
4708 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
4709 | SvCUR_set(bigstr, offset+len); | |
4710 | } | |
79072805 | 4711 | |
69b47968 | 4712 | SvTAINT(bigstr); |
79072805 LW |
4713 | i = littlelen - len; |
4714 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 4715 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
4716 | mid = big + offset + len; |
4717 | midend = bigend = big + SvCUR(bigstr); | |
4718 | bigend += i; | |
4719 | *bigend = '\0'; | |
4720 | while (midend > mid) /* shove everything down */ | |
4721 | *--bigend = *--midend; | |
4722 | Move(little,big+offset,littlelen,char); | |
4723 | SvCUR(bigstr) += i; | |
4724 | SvSETMAGIC(bigstr); | |
4725 | return; | |
4726 | } | |
4727 | else if (i == 0) { | |
463ee0b2 | 4728 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
4729 | SvSETMAGIC(bigstr); |
4730 | return; | |
4731 | } | |
4732 | ||
463ee0b2 | 4733 | big = SvPVX(bigstr); |
79072805 LW |
4734 | mid = big + offset; |
4735 | midend = mid + len; | |
4736 | bigend = big + SvCUR(bigstr); | |
4737 | ||
4738 | if (midend > bigend) | |
cea2e8a9 | 4739 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
4740 | |
4741 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
4742 | if (littlelen) { | |
4743 | Move(little, mid, littlelen,char); | |
4744 | mid += littlelen; | |
4745 | } | |
4746 | i = bigend - midend; | |
4747 | if (i > 0) { | |
4748 | Move(midend, mid, i,char); | |
4749 | mid += i; | |
4750 | } | |
4751 | *mid = '\0'; | |
4752 | SvCUR_set(bigstr, mid - big); | |
4753 | } | |
4754 | /*SUPPRESS 560*/ | |
155aba94 | 4755 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
4756 | midend -= littlelen; |
4757 | mid = midend; | |
4758 | sv_chop(bigstr,midend-i); | |
4759 | big += i; | |
4760 | while (i--) | |
4761 | *--midend = *--big; | |
4762 | if (littlelen) | |
4763 | Move(little, mid, littlelen,char); | |
4764 | } | |
4765 | else if (littlelen) { | |
4766 | midend -= littlelen; | |
4767 | sv_chop(bigstr,midend); | |
4768 | Move(little,midend,littlelen,char); | |
4769 | } | |
4770 | else { | |
4771 | sv_chop(bigstr,midend); | |
4772 | } | |
4773 | SvSETMAGIC(bigstr); | |
4774 | } | |
4775 | ||
c461cf8f JH |
4776 | /* |
4777 | =for apidoc sv_replace | |
4778 | ||
4779 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
4780 | The target SV physically takes over ownership of the body of the source SV |
4781 | and inherits its flags; however, the target keeps any magic it owns, | |
4782 | and any magic in the source is discarded. | |
ff276b08 | 4783 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 4784 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
4785 | |
4786 | =cut | |
4787 | */ | |
79072805 LW |
4788 | |
4789 | void | |
864dbfa3 | 4790 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 LW |
4791 | { |
4792 | U32 refcnt = SvREFCNT(sv); | |
2213622d | 4793 | SV_CHECK_THINKFIRST(sv); |
0453d815 PM |
4794 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
4795 | Perl_warner(aTHX_ WARN_INTERNAL, "Reference miscount in sv_replace()"); | |
93a17b20 | 4796 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
4797 | if (SvMAGICAL(nsv)) |
4798 | mg_free(nsv); | |
4799 | else | |
4800 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 4801 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 4802 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
4803 | SvMAGICAL_off(sv); |
4804 | SvMAGIC(sv) = 0; | |
4805 | } | |
79072805 LW |
4806 | SvREFCNT(sv) = 0; |
4807 | sv_clear(sv); | |
477f5d66 | 4808 | assert(!SvREFCNT(sv)); |
79072805 LW |
4809 | StructCopy(nsv,sv,SV); |
4810 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 4811 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
463ee0b2 | 4812 | del_SV(nsv); |
79072805 LW |
4813 | } |
4814 | ||
c461cf8f JH |
4815 | /* |
4816 | =for apidoc sv_clear | |
4817 | ||
645c22ef DM |
4818 | Clear an SV: call any destructors, free up any memory used by the body, |
4819 | and free the body itself. The SV's head is I<not> freed, although | |
4820 | its type is set to all 1's so that it won't inadvertently be assumed | |
4821 | to be live during global destruction etc. | |
4822 | This function should only be called when REFCNT is zero. Most of the time | |
4823 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
4824 | instead. | |
c461cf8f JH |
4825 | |
4826 | =cut | |
4827 | */ | |
4828 | ||
79072805 | 4829 | void |
864dbfa3 | 4830 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 4831 | { |
ec12f114 | 4832 | HV* stash; |
79072805 LW |
4833 | assert(sv); |
4834 | assert(SvREFCNT(sv) == 0); | |
4835 | ||
ed6116ce | 4836 | if (SvOBJECT(sv)) { |
3280af22 | 4837 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 4838 | dSP; |
32251b26 | 4839 | CV* destructor; |
837485b6 | 4840 | SV tmpref; |
a0d0e21e | 4841 | |
837485b6 GS |
4842 | Zero(&tmpref, 1, SV); |
4843 | sv_upgrade(&tmpref, SVt_RV); | |
4844 | SvROK_on(&tmpref); | |
4845 | SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ | |
4846 | SvREFCNT(&tmpref) = 1; | |
8ebc5c01 | 4847 | |
d460ef45 | 4848 | do { |
4e8e7886 | 4849 | stash = SvSTASH(sv); |
32251b26 | 4850 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 GS |
4851 | if (destructor) { |
4852 | ENTER; | |
e788e7d3 | 4853 | PUSHSTACKi(PERLSI_DESTROY); |
837485b6 | 4854 | SvRV(&tmpref) = SvREFCNT_inc(sv); |
4e8e7886 GS |
4855 | EXTEND(SP, 2); |
4856 | PUSHMARK(SP); | |
837485b6 | 4857 | PUSHs(&tmpref); |
4e8e7886 | 4858 | PUTBACK; |
32251b26 | 4859 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR); |
4e8e7886 | 4860 | SvREFCNT(sv)--; |
d3acc0f7 | 4861 | POPSTACK; |
3095d977 | 4862 | SPAGAIN; |
4e8e7886 GS |
4863 | LEAVE; |
4864 | } | |
4865 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 4866 | |
837485b6 | 4867 | del_XRV(SvANY(&tmpref)); |
6f44e0a4 JP |
4868 | |
4869 | if (SvREFCNT(sv)) { | |
4870 | if (PL_in_clean_objs) | |
cea2e8a9 | 4871 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
6f44e0a4 JP |
4872 | HvNAME(stash)); |
4873 | /* DESTROY gave object new lease on life */ | |
4874 | return; | |
4875 | } | |
a0d0e21e | 4876 | } |
4e8e7886 | 4877 | |
a0d0e21e | 4878 | if (SvOBJECT(sv)) { |
4e8e7886 | 4879 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
4880 | SvOBJECT_off(sv); /* Curse the object. */ |
4881 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 4882 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 4883 | } |
463ee0b2 | 4884 | } |
524189f1 JH |
4885 | if (SvTYPE(sv) >= SVt_PVMG) { |
4886 | if (SvMAGIC(sv)) | |
4887 | mg_free(sv); | |
4888 | if (SvFLAGS(sv) & SVpad_TYPED) | |
4889 | SvREFCNT_dec(SvSTASH(sv)); | |
4890 | } | |
ec12f114 | 4891 | stash = NULL; |
79072805 | 4892 | switch (SvTYPE(sv)) { |
8990e307 | 4893 | case SVt_PVIO: |
df0bd2f4 GS |
4894 | if (IoIFP(sv) && |
4895 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 4896 | IoIFP(sv) != PerlIO_stdout() && |
4897 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 4898 | { |
f2b5be74 | 4899 | io_close((IO*)sv, FALSE); |
93578b34 | 4900 | } |
1d7c1841 | 4901 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 4902 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 4903 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
4904 | Safefree(IoTOP_NAME(sv)); |
4905 | Safefree(IoFMT_NAME(sv)); | |
4906 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 4907 | /* FALL THROUGH */ |
79072805 | 4908 | case SVt_PVBM: |
a0d0e21e | 4909 | goto freescalar; |
79072805 | 4910 | case SVt_PVCV: |
748a9306 | 4911 | case SVt_PVFM: |
85e6fe83 | 4912 | cv_undef((CV*)sv); |
a0d0e21e | 4913 | goto freescalar; |
79072805 | 4914 | case SVt_PVHV: |
85e6fe83 | 4915 | hv_undef((HV*)sv); |
a0d0e21e | 4916 | break; |
79072805 | 4917 | case SVt_PVAV: |
85e6fe83 | 4918 | av_undef((AV*)sv); |
a0d0e21e | 4919 | break; |
02270b4e GS |
4920 | case SVt_PVLV: |
4921 | SvREFCNT_dec(LvTARG(sv)); | |
4922 | goto freescalar; | |
a0d0e21e | 4923 | case SVt_PVGV: |
1edc1566 | 4924 | gp_free((GV*)sv); |
a0d0e21e | 4925 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
4926 | /* cannot decrease stash refcount yet, as we might recursively delete |
4927 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
4928 | of stash until current sv is completely gone. | |
4929 | -- JohnPC, 27 Mar 1998 */ | |
4930 | stash = GvSTASH(sv); | |
a0d0e21e | 4931 | /* FALL THROUGH */ |
79072805 | 4932 | case SVt_PVMG: |
79072805 LW |
4933 | case SVt_PVNV: |
4934 | case SVt_PVIV: | |
a0d0e21e LW |
4935 | freescalar: |
4936 | (void)SvOOK_off(sv); | |
79072805 LW |
4937 | /* FALL THROUGH */ |
4938 | case SVt_PV: | |
a0d0e21e | 4939 | case SVt_RV: |
810b8aa5 GS |
4940 | if (SvROK(sv)) { |
4941 | if (SvWEAKREF(sv)) | |
4942 | sv_del_backref(sv); | |
4943 | else | |
4944 | SvREFCNT_dec(SvRV(sv)); | |
4945 | } | |
1edc1566 | 4946 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 4947 | Safefree(SvPVX(sv)); |
1c846c1f | 4948 | else if (SvPVX(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
c3654f1a | 4949 | unsharepvn(SvPVX(sv),SvUTF8(sv)?-SvCUR(sv):SvCUR(sv),SvUVX(sv)); |
1c846c1f NIS |
4950 | SvFAKE_off(sv); |
4951 | } | |
79072805 | 4952 | break; |
a0d0e21e | 4953 | /* |
79072805 | 4954 | case SVt_NV: |
79072805 | 4955 | case SVt_IV: |
79072805 LW |
4956 | case SVt_NULL: |
4957 | break; | |
a0d0e21e | 4958 | */ |
79072805 LW |
4959 | } |
4960 | ||
4961 | switch (SvTYPE(sv)) { | |
4962 | case SVt_NULL: | |
4963 | break; | |
79072805 LW |
4964 | case SVt_IV: |
4965 | del_XIV(SvANY(sv)); | |
4966 | break; | |
4967 | case SVt_NV: | |
4968 | del_XNV(SvANY(sv)); | |
4969 | break; | |
ed6116ce LW |
4970 | case SVt_RV: |
4971 | del_XRV(SvANY(sv)); | |
4972 | break; | |
79072805 LW |
4973 | case SVt_PV: |
4974 | del_XPV(SvANY(sv)); | |
4975 | break; | |
4976 | case SVt_PVIV: | |
4977 | del_XPVIV(SvANY(sv)); | |
4978 | break; | |
4979 | case SVt_PVNV: | |
4980 | del_XPVNV(SvANY(sv)); | |
4981 | break; | |
4982 | case SVt_PVMG: | |
4983 | del_XPVMG(SvANY(sv)); | |
4984 | break; | |
4985 | case SVt_PVLV: | |
4986 | del_XPVLV(SvANY(sv)); | |
4987 | break; | |
4988 | case SVt_PVAV: | |
4989 | del_XPVAV(SvANY(sv)); | |
4990 | break; | |
4991 | case SVt_PVHV: | |
4992 | del_XPVHV(SvANY(sv)); | |
4993 | break; | |
4994 | case SVt_PVCV: | |
4995 | del_XPVCV(SvANY(sv)); | |
4996 | break; | |
4997 | case SVt_PVGV: | |
4998 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
4999 | /* code duplication for increased performance. */ |
5000 | SvFLAGS(sv) &= SVf_BREAK; | |
5001 | SvFLAGS(sv) |= SVTYPEMASK; | |
5002 | /* decrease refcount of the stash that owns this GV, if any */ | |
5003 | if (stash) | |
5004 | SvREFCNT_dec(stash); | |
5005 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
5006 | case SVt_PVBM: |
5007 | del_XPVBM(SvANY(sv)); | |
5008 | break; | |
5009 | case SVt_PVFM: | |
5010 | del_XPVFM(SvANY(sv)); | |
5011 | break; | |
8990e307 LW |
5012 | case SVt_PVIO: |
5013 | del_XPVIO(SvANY(sv)); | |
5014 | break; | |
79072805 | 5015 | } |
a0d0e21e | 5016 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 5017 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
5018 | } |
5019 | ||
645c22ef DM |
5020 | /* |
5021 | =for apidoc sv_newref | |
5022 | ||
5023 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5024 | instead. | |
5025 | ||
5026 | =cut | |
5027 | */ | |
5028 | ||
79072805 | 5029 | SV * |
864dbfa3 | 5030 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5031 | { |
463ee0b2 | 5032 | if (sv) |
dce16143 | 5033 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
5034 | return sv; |
5035 | } | |
5036 | ||
c461cf8f JH |
5037 | /* |
5038 | =for apidoc sv_free | |
5039 | ||
645c22ef DM |
5040 | Decrement an SV's reference count, and if it drops to zero, call |
5041 | C<sv_clear> to invoke destructors and free up any memory used by | |
5042 | the body; finally, deallocate the SV's head itself. | |
5043 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5044 | |
5045 | =cut | |
5046 | */ | |
5047 | ||
79072805 | 5048 | void |
864dbfa3 | 5049 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5050 | { |
dce16143 MB |
5051 | int refcount_is_zero; |
5052 | ||
79072805 LW |
5053 | if (!sv) |
5054 | return; | |
a0d0e21e LW |
5055 | if (SvREFCNT(sv) == 0) { |
5056 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5057 | /* this SV's refcnt has been artificially decremented to |
5058 | * trigger cleanup */ | |
a0d0e21e | 5059 | return; |
3280af22 | 5060 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5061 | return; |
d689ffdd JP |
5062 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5063 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5064 | SvREFCNT(sv) = (~(U32)0)/2; | |
5065 | return; | |
5066 | } | |
0453d815 PM |
5067 | if (ckWARN_d(WARN_INTERNAL)) |
5068 | Perl_warner(aTHX_ WARN_INTERNAL, "Attempt to free unreferenced scalar"); | |
79072805 LW |
5069 | return; |
5070 | } | |
dce16143 MB |
5071 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
5072 | if (!refcount_is_zero) | |
8990e307 | 5073 | return; |
463ee0b2 LW |
5074 | #ifdef DEBUGGING |
5075 | if (SvTEMP(sv)) { | |
0453d815 | 5076 | if (ckWARN_d(WARN_DEBUGGING)) |
f248d071 | 5077 | Perl_warner(aTHX_ WARN_DEBUGGING, |
1d7c1841 GS |
5078 | "Attempt to free temp prematurely: SV 0x%"UVxf, |
5079 | PTR2UV(sv)); | |
79072805 | 5080 | return; |
79072805 | 5081 | } |
463ee0b2 | 5082 | #endif |
d689ffdd JP |
5083 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5084 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5085 | SvREFCNT(sv) = (~(U32)0)/2; | |
5086 | return; | |
5087 | } | |
79072805 | 5088 | sv_clear(sv); |
477f5d66 CS |
5089 | if (! SvREFCNT(sv)) |
5090 | del_SV(sv); | |
79072805 LW |
5091 | } |
5092 | ||
954c1994 GS |
5093 | /* |
5094 | =for apidoc sv_len | |
5095 | ||
645c22ef DM |
5096 | Returns the length of the string in the SV. Handles magic and type |
5097 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5098 | |
5099 | =cut | |
5100 | */ | |
5101 | ||
79072805 | 5102 | STRLEN |
864dbfa3 | 5103 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5104 | { |
748a9306 | 5105 | char *junk; |
463ee0b2 | 5106 | STRLEN len; |
79072805 LW |
5107 | |
5108 | if (!sv) | |
5109 | return 0; | |
5110 | ||
8990e307 | 5111 | if (SvGMAGICAL(sv)) |
565764a8 | 5112 | len = mg_length(sv); |
8990e307 | 5113 | else |
748a9306 | 5114 | junk = SvPV(sv, len); |
463ee0b2 | 5115 | return len; |
79072805 LW |
5116 | } |
5117 | ||
c461cf8f JH |
5118 | /* |
5119 | =for apidoc sv_len_utf8 | |
5120 | ||
5121 | Returns the number of characters in the string in an SV, counting wide | |
645c22ef | 5122 | UTF8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5123 | |
5124 | =cut | |
5125 | */ | |
5126 | ||
a0ed51b3 | 5127 | STRLEN |
864dbfa3 | 5128 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5129 | { |
a0ed51b3 LW |
5130 | if (!sv) |
5131 | return 0; | |
5132 | ||
a0ed51b3 | 5133 | if (SvGMAGICAL(sv)) |
b76347f2 | 5134 | return mg_length(sv); |
a0ed51b3 | 5135 | else |
b76347f2 JH |
5136 | { |
5137 | STRLEN len; | |
5138 | U8 *s = (U8*)SvPV(sv, len); | |
5139 | ||
d6efbbad | 5140 | return Perl_utf8_length(aTHX_ s, s + len); |
a0ed51b3 | 5141 | } |
a0ed51b3 LW |
5142 | } |
5143 | ||
645c22ef DM |
5144 | /* |
5145 | =for apidoc sv_pos_u2b | |
5146 | ||
5147 | Converts the value pointed to by offsetp from a count of UTF8 chars from | |
5148 | the start of the string, to a count of the equivalent number of bytes; if | |
5149 | lenp is non-zero, it does the same to lenp, but this time starting from | |
5150 | the offset, rather than from the start of the string. Handles magic and | |
5151 | type coercion. | |
5152 | ||
5153 | =cut | |
5154 | */ | |
5155 | ||
a0ed51b3 | 5156 | void |
864dbfa3 | 5157 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 5158 | { |
dfe13c55 GS |
5159 | U8 *start; |
5160 | U8 *s; | |
5161 | U8 *send; | |
a0ed51b3 LW |
5162 | I32 uoffset = *offsetp; |
5163 | STRLEN len; | |
5164 | ||
5165 | if (!sv) | |
5166 | return; | |
5167 | ||
dfe13c55 | 5168 | start = s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
5169 | send = s + len; |
5170 | while (s < send && uoffset--) | |
5171 | s += UTF8SKIP(s); | |
bb40f870 GA |
5172 | if (s >= send) |
5173 | s = send; | |
a0ed51b3 LW |
5174 | *offsetp = s - start; |
5175 | if (lenp) { | |
5176 | I32 ulen = *lenp; | |
5177 | start = s; | |
5178 | while (s < send && ulen--) | |
5179 | s += UTF8SKIP(s); | |
bb40f870 GA |
5180 | if (s >= send) |
5181 | s = send; | |
a0ed51b3 LW |
5182 | *lenp = s - start; |
5183 | } | |
5184 | return; | |
5185 | } | |
5186 | ||
645c22ef DM |
5187 | /* |
5188 | =for apidoc sv_pos_b2u | |
5189 | ||
5190 | Converts the value pointed to by offsetp from a count of bytes from the | |
5191 | start of the string, to a count of the equivalent number of UTF8 chars. | |
5192 | Handles magic and type coercion. | |
5193 | ||
5194 | =cut | |
5195 | */ | |
5196 | ||
a0ed51b3 | 5197 | void |
864dbfa3 | 5198 | Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp) |
a0ed51b3 | 5199 | { |
dfe13c55 GS |
5200 | U8 *s; |
5201 | U8 *send; | |
a0ed51b3 LW |
5202 | STRLEN len; |
5203 | ||
5204 | if (!sv) | |
5205 | return; | |
5206 | ||
dfe13c55 | 5207 | s = (U8*)SvPV(sv, len); |
a0ed51b3 | 5208 | if (len < *offsetp) |
a0dbb045 | 5209 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
a0ed51b3 LW |
5210 | send = s + *offsetp; |
5211 | len = 0; | |
5212 | while (s < send) { | |
a0dbb045 | 5213 | STRLEN n; |
2b9d42f0 NIS |
5214 | /* Call utf8n_to_uvchr() to validate the sequence */ |
5215 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
5216 | if (n > 0) { | |
a0dbb045 JH |
5217 | s += n; |
5218 | len++; | |
5219 | } | |
5220 | else | |
5221 | break; | |
a0ed51b3 LW |
5222 | } |
5223 | *offsetp = len; | |
5224 | return; | |
5225 | } | |
5226 | ||
954c1994 GS |
5227 | /* |
5228 | =for apidoc sv_eq | |
5229 | ||
5230 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
5231 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5232 | coerce its args to strings if necessary. | |
954c1994 GS |
5233 | |
5234 | =cut | |
5235 | */ | |
5236 | ||
79072805 | 5237 | I32 |
e01b9e88 | 5238 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 LW |
5239 | { |
5240 | char *pv1; | |
463ee0b2 | 5241 | STRLEN cur1; |
79072805 | 5242 | char *pv2; |
463ee0b2 | 5243 | STRLEN cur2; |
e01b9e88 | 5244 | I32 eq = 0; |
db42d148 | 5245 | char *tpv = Nullch; |
79072805 | 5246 | |
e01b9e88 | 5247 | if (!sv1) { |
79072805 LW |
5248 | pv1 = ""; |
5249 | cur1 = 0; | |
5250 | } | |
463ee0b2 | 5251 | else |
e01b9e88 | 5252 | pv1 = SvPV(sv1, cur1); |
79072805 | 5253 | |
e01b9e88 SC |
5254 | if (!sv2){ |
5255 | pv2 = ""; | |
5256 | cur2 = 0; | |
92d29cee | 5257 | } |
e01b9e88 SC |
5258 | else |
5259 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5260 | |
e01b9e88 | 5261 | /* do not utf8ize the comparands as a side-effect */ |
0064a8a9 | 5262 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
f9a63242 | 5263 | bool is_utf8 = TRUE; |
db42d148 | 5264 | /* UTF-8ness differs */ |
1aa99e6b IH |
5265 | if (PL_hints & HINT_UTF8_DISTINCT) |
5266 | return FALSE; | |
5267 | ||
e01b9e88 | 5268 | if (SvUTF8(sv1)) { |
db42d148 | 5269 | /* sv1 is the UTF-8 one , If is equal it must be downgrade-able */ |
f34ff0a8 | 5270 | char *pv = (char*)bytes_from_utf8((U8*)pv1, &cur1, &is_utf8); |
db42d148 NIS |
5271 | if (pv != pv1) |
5272 | pv1 = tpv = pv; | |
e01b9e88 SC |
5273 | } |
5274 | else { | |
db42d148 | 5275 | /* sv2 is the UTF-8 one , If is equal it must be downgrade-able */ |
f34ff0a8 | 5276 | char *pv = (char *)bytes_from_utf8((U8*)pv2, &cur2, &is_utf8); |
db42d148 NIS |
5277 | if (pv != pv2) |
5278 | pv2 = tpv = pv; | |
5279 | } | |
5280 | if (is_utf8) { | |
5281 | /* Downgrade not possible - cannot be eq */ | |
5282 | return FALSE; | |
e01b9e88 SC |
5283 | } |
5284 | } | |
79072805 | 5285 | |
e01b9e88 SC |
5286 | if (cur1 == cur2) |
5287 | eq = memEQ(pv1, pv2, cur1); | |
5288 | ||
db42d148 NIS |
5289 | if (tpv != Nullch) |
5290 | Safefree(tpv); | |
e01b9e88 SC |
5291 | |
5292 | return eq; | |
79072805 LW |
5293 | } |
5294 | ||
954c1994 GS |
5295 | /* |
5296 | =for apidoc sv_cmp | |
5297 | ||
5298 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
5299 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
5300 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5301 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
5302 | |
5303 | =cut | |
5304 | */ | |
5305 | ||
79072805 | 5306 | I32 |
e01b9e88 | 5307 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5308 | { |
560a288e GS |
5309 | STRLEN cur1, cur2; |
5310 | char *pv1, *pv2; | |
1c846c1f | 5311 | I32 cmp; |
e01b9e88 SC |
5312 | bool pv1tmp = FALSE; |
5313 | bool pv2tmp = FALSE; | |
560a288e | 5314 | |
e01b9e88 SC |
5315 | if (!sv1) { |
5316 | pv1 = ""; | |
560a288e GS |
5317 | cur1 = 0; |
5318 | } | |
e01b9e88 SC |
5319 | else |
5320 | pv1 = SvPV(sv1, cur1); | |
560a288e | 5321 | |
e01b9e88 SC |
5322 | if (!sv2){ |
5323 | pv2 = ""; | |
560a288e GS |
5324 | cur2 = 0; |
5325 | } | |
e01b9e88 SC |
5326 | else |
5327 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5328 | |
e01b9e88 | 5329 | /* do not utf8ize the comparands as a side-effect */ |
0064a8a9 | 5330 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
1aa99e6b IH |
5331 | if (PL_hints & HINT_UTF8_DISTINCT) |
5332 | return SvUTF8(sv1) ? 1 : -1; | |
5333 | ||
e01b9e88 SC |
5334 | if (SvUTF8(sv1)) { |
5335 | pv2 = (char*)bytes_to_utf8((U8*)pv2, &cur2); | |
5336 | pv2tmp = TRUE; | |
5337 | } | |
5338 | else { | |
5339 | pv1 = (char*)bytes_to_utf8((U8*)pv1, &cur1); | |
5340 | pv1tmp = TRUE; | |
5341 | } | |
5342 | } | |
79072805 | 5343 | |
e01b9e88 SC |
5344 | if (!cur1) { |
5345 | cmp = cur2 ? -1 : 0; | |
5346 | } else if (!cur2) { | |
5347 | cmp = 1; | |
5348 | } else { | |
5349 | I32 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); | |
5350 | ||
5351 | if (retval) { | |
5352 | cmp = retval < 0 ? -1 : 1; | |
5353 | } else if (cur1 == cur2) { | |
5354 | cmp = 0; | |
5355 | } else { | |
5356 | cmp = cur1 < cur2 ? -1 : 1; | |
5357 | } | |
5358 | } | |
16660edb | 5359 | |
e01b9e88 SC |
5360 | if (pv1tmp) |
5361 | Safefree(pv1); | |
5362 | if (pv2tmp) | |
5363 | Safefree(pv2); | |
16660edb | 5364 | |
e01b9e88 | 5365 | return cmp; |
bbce6d69 | 5366 | } |
16660edb | 5367 | |
c461cf8f JH |
5368 | /* |
5369 | =for apidoc sv_cmp_locale | |
5370 | ||
645c22ef DM |
5371 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
5372 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
5373 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
5374 | |
5375 | =cut | |
5376 | */ | |
5377 | ||
bbce6d69 | 5378 | I32 |
864dbfa3 | 5379 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 5380 | { |
36477c24 | 5381 | #ifdef USE_LOCALE_COLLATE |
16660edb | 5382 | |
bbce6d69 | 5383 | char *pv1, *pv2; |
5384 | STRLEN len1, len2; | |
5385 | I32 retval; | |
16660edb | 5386 | |
3280af22 | 5387 | if (PL_collation_standard) |
bbce6d69 | 5388 | goto raw_compare; |
16660edb | 5389 | |
bbce6d69 | 5390 | len1 = 0; |
8ac85365 | 5391 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 5392 | len2 = 0; |
8ac85365 | 5393 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 5394 | |
bbce6d69 | 5395 | if (!pv1 || !len1) { |
5396 | if (pv2 && len2) | |
5397 | return -1; | |
5398 | else | |
5399 | goto raw_compare; | |
5400 | } | |
5401 | else { | |
5402 | if (!pv2 || !len2) | |
5403 | return 1; | |
5404 | } | |
16660edb | 5405 | |
bbce6d69 | 5406 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 5407 | |
bbce6d69 | 5408 | if (retval) |
16660edb | 5409 | return retval < 0 ? -1 : 1; |
5410 | ||
bbce6d69 | 5411 | /* |
5412 | * When the result of collation is equality, that doesn't mean | |
5413 | * that there are no differences -- some locales exclude some | |
5414 | * characters from consideration. So to avoid false equalities, | |
5415 | * we use the raw string as a tiebreaker. | |
5416 | */ | |
16660edb | 5417 | |
bbce6d69 | 5418 | raw_compare: |
5419 | /* FALL THROUGH */ | |
16660edb | 5420 | |
36477c24 | 5421 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 5422 | |
bbce6d69 | 5423 | return sv_cmp(sv1, sv2); |
5424 | } | |
79072805 | 5425 | |
645c22ef | 5426 | |
36477c24 | 5427 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 5428 | |
7a4c00b4 | 5429 | /* |
645c22ef DM |
5430 | =for apidoc sv_collxfrm |
5431 | ||
5432 | Add Collate Transform magic to an SV if it doesn't already have it. | |
5433 | ||
5434 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
5435 | scalar data of the variable, but transformed to such a format that a normal | |
5436 | memory comparison can be used to compare the data according to the locale | |
5437 | settings. | |
5438 | ||
5439 | =cut | |
5440 | */ | |
5441 | ||
bbce6d69 | 5442 | char * |
864dbfa3 | 5443 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 5444 | { |
7a4c00b4 | 5445 | MAGIC *mg; |
16660edb | 5446 | |
14befaf4 | 5447 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 5448 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 5449 | char *s, *xf; |
5450 | STRLEN len, xlen; | |
5451 | ||
7a4c00b4 | 5452 | if (mg) |
5453 | Safefree(mg->mg_ptr); | |
bbce6d69 | 5454 | s = SvPV(sv, len); |
5455 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 5456 | if (SvREADONLY(sv)) { |
5457 | SAVEFREEPV(xf); | |
5458 | *nxp = xlen; | |
3280af22 | 5459 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 5460 | } |
7a4c00b4 | 5461 | if (! mg) { |
14befaf4 DM |
5462 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
5463 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 5464 | assert(mg); |
bbce6d69 | 5465 | } |
7a4c00b4 | 5466 | mg->mg_ptr = xf; |
565764a8 | 5467 | mg->mg_len = xlen; |
7a4c00b4 | 5468 | } |
5469 | else { | |
ff0cee69 | 5470 | if (mg) { |
5471 | mg->mg_ptr = NULL; | |
565764a8 | 5472 | mg->mg_len = -1; |
ff0cee69 | 5473 | } |
bbce6d69 | 5474 | } |
5475 | } | |
7a4c00b4 | 5476 | if (mg && mg->mg_ptr) { |
565764a8 | 5477 | *nxp = mg->mg_len; |
3280af22 | 5478 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 5479 | } |
5480 | else { | |
5481 | *nxp = 0; | |
5482 | return NULL; | |
16660edb | 5483 | } |
79072805 LW |
5484 | } |
5485 | ||
36477c24 | 5486 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 5487 | |
c461cf8f JH |
5488 | /* |
5489 | =for apidoc sv_gets | |
5490 | ||
5491 | Get a line from the filehandle and store it into the SV, optionally | |
5492 | appending to the currently-stored string. | |
5493 | ||
5494 | =cut | |
5495 | */ | |
5496 | ||
79072805 | 5497 | char * |
864dbfa3 | 5498 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 5499 | { |
c07a80fd | 5500 | char *rsptr; |
5501 | STRLEN rslen; | |
5502 | register STDCHAR rslast; | |
5503 | register STDCHAR *bp; | |
5504 | register I32 cnt; | |
9c5ffd7c | 5505 | I32 i = 0; |
c07a80fd | 5506 | |
2213622d | 5507 | SV_CHECK_THINKFIRST(sv); |
6fc92669 | 5508 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 5509 | |
ff68c719 | 5510 | SvSCREAM_off(sv); |
c07a80fd | 5511 | |
3280af22 | 5512 | if (RsSNARF(PL_rs)) { |
c07a80fd | 5513 | rsptr = NULL; |
5514 | rslen = 0; | |
5515 | } | |
3280af22 | 5516 | else if (RsRECORD(PL_rs)) { |
5b2b9c68 HM |
5517 | I32 recsize, bytesread; |
5518 | char *buffer; | |
5519 | ||
5520 | /* Grab the size of the record we're getting */ | |
3280af22 | 5521 | recsize = SvIV(SvRV(PL_rs)); |
5b2b9c68 | 5522 | (void)SvPOK_only(sv); /* Validate pointer */ |
e670df4e | 5523 | buffer = SvGROW(sv, recsize + 1); |
5b2b9c68 HM |
5524 | /* Go yank in */ |
5525 | #ifdef VMS | |
5526 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
5527 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
5528 | /* doing, but we've got no other real choice */ | |
5529 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); | |
5530 | #else | |
5531 | bytesread = PerlIO_read(fp, buffer, recsize); | |
5532 | #endif | |
5533 | SvCUR_set(sv, bytesread); | |
e670df4e | 5534 | buffer[bytesread] = '\0'; |
7d59b7e4 NIS |
5535 | if (PerlIO_isutf8(fp)) |
5536 | SvUTF8_on(sv); | |
5537 | else | |
5538 | SvUTF8_off(sv); | |
5b2b9c68 HM |
5539 | return(SvCUR(sv) ? SvPVX(sv) : Nullch); |
5540 | } | |
3280af22 | 5541 | else if (RsPARA(PL_rs)) { |
c07a80fd | 5542 | rsptr = "\n\n"; |
5543 | rslen = 2; | |
5544 | } | |
7d59b7e4 NIS |
5545 | else { |
5546 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
5547 | if (PerlIO_isutf8(fp)) { | |
5548 | rsptr = SvPVutf8(PL_rs, rslen); | |
5549 | } | |
5550 | else { | |
5551 | if (SvUTF8(PL_rs)) { | |
5552 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
5553 | Perl_croak(aTHX_ "Wide character in $/"); | |
5554 | } | |
5555 | } | |
5556 | rsptr = SvPV(PL_rs, rslen); | |
5557 | } | |
5558 | } | |
5559 | ||
c07a80fd | 5560 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
5561 | ||
3280af22 | 5562 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
79072805 | 5563 | do { /* to make sure file boundaries work right */ |
760ac839 | 5564 | if (PerlIO_eof(fp)) |
a0d0e21e | 5565 | return 0; |
760ac839 | 5566 | i = PerlIO_getc(fp); |
79072805 | 5567 | if (i != '\n') { |
a0d0e21e LW |
5568 | if (i == -1) |
5569 | return 0; | |
760ac839 | 5570 | PerlIO_ungetc(fp,i); |
79072805 LW |
5571 | break; |
5572 | } | |
5573 | } while (i != EOF); | |
5574 | } | |
c07a80fd | 5575 | |
760ac839 LW |
5576 | /* See if we know enough about I/O mechanism to cheat it ! */ |
5577 | ||
5578 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 5579 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
5580 | enough here - and may even be a macro allowing compile |
5581 | time optimization. | |
5582 | */ | |
5583 | ||
5584 | if (PerlIO_fast_gets(fp)) { | |
5585 | ||
5586 | /* | |
5587 | * We're going to steal some values from the stdio struct | |
5588 | * and put EVERYTHING in the innermost loop into registers. | |
5589 | */ | |
5590 | register STDCHAR *ptr; | |
5591 | STRLEN bpx; | |
5592 | I32 shortbuffered; | |
5593 | ||
16660edb | 5594 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
5595 | /* An ungetc()d char is handled separately from the regular | |
5596 | * buffer, so we getc() it back out and stuff it in the buffer. | |
5597 | */ | |
5598 | i = PerlIO_getc(fp); | |
5599 | if (i == EOF) return 0; | |
5600 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
5601 | (*fp)->_cnt++; | |
5602 | #endif | |
c07a80fd | 5603 | |
c2960299 | 5604 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 5605 | |
a20bf0c3 | 5606 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
a0d0e21e | 5607 | (void)SvPOK_only(sv); /* validate pointer */ |
79072805 LW |
5608 | if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ |
5609 | if (cnt > 80 && SvLEN(sv) > append) { | |
5610 | shortbuffered = cnt - SvLEN(sv) + append + 1; | |
5611 | cnt -= shortbuffered; | |
5612 | } | |
5613 | else { | |
5614 | shortbuffered = 0; | |
bbce6d69 | 5615 | /* remember that cnt can be negative */ |
5616 | SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1))); | |
79072805 LW |
5617 | } |
5618 | } | |
5619 | else | |
5620 | shortbuffered = 0; | |
c07a80fd | 5621 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 5622 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 5623 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5624 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 5625 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5626 | "Screamer: entering: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5627 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5628 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
5629 | for (;;) { |
5630 | screamer: | |
93a17b20 | 5631 | if (cnt > 0) { |
c07a80fd | 5632 | if (rslen) { |
760ac839 LW |
5633 | while (cnt > 0) { /* this | eat */ |
5634 | cnt--; | |
c07a80fd | 5635 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
5636 | goto thats_all_folks; /* screams | sed :-) */ | |
5637 | } | |
5638 | } | |
5639 | else { | |
1c846c1f NIS |
5640 | Copy(ptr, bp, cnt, char); /* this | eat */ |
5641 | bp += cnt; /* screams | dust */ | |
c07a80fd | 5642 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 5643 | cnt = 0; |
93a17b20 | 5644 | } |
79072805 LW |
5645 | } |
5646 | ||
748a9306 | 5647 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
5648 | cnt = shortbuffered; |
5649 | shortbuffered = 0; | |
c07a80fd | 5650 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5651 | SvCUR_set(sv, bpx); |
5652 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 5653 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
5654 | continue; |
5655 | } | |
5656 | ||
16660edb | 5657 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
5658 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
5659 | PTR2UV(ptr),(long)cnt)); | |
a20bf0c3 | 5660 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */ |
16660edb | 5661 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5662 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5663 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5664 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
1c846c1f | 5665 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 5666 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
5667 | another abstraction. */ | |
760ac839 | 5668 | i = PerlIO_getc(fp); /* get more characters */ |
16660edb | 5669 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5670 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5671 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5672 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
a20bf0c3 JH |
5673 | cnt = PerlIO_get_cnt(fp); |
5674 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 5675 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5676 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 5677 | |
748a9306 LW |
5678 | if (i == EOF) /* all done for ever? */ |
5679 | goto thats_really_all_folks; | |
5680 | ||
c07a80fd | 5681 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5682 | SvCUR_set(sv, bpx); |
5683 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 5684 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
5685 | ||
760ac839 | 5686 | *bp++ = i; /* store character from PerlIO_getc */ |
79072805 | 5687 | |
c07a80fd | 5688 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 5689 | goto thats_all_folks; |
79072805 LW |
5690 | } |
5691 | ||
5692 | thats_all_folks: | |
c07a80fd | 5693 | if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || |
36477c24 | 5694 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 5695 | goto screamer; /* go back to the fray */ |
79072805 LW |
5696 | thats_really_all_folks: |
5697 | if (shortbuffered) | |
5698 | cnt += shortbuffered; | |
16660edb | 5699 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5700 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
a20bf0c3 | 5701 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 5702 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5703 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5704 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5705 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 5706 | *bp = '\0'; |
760ac839 | 5707 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 5708 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 5709 | "Screamer: done, len=%ld, string=|%.*s|\n", |
5710 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
5711 | } |
5712 | else | |
79072805 | 5713 | { |
4d2c4e07 | 5714 | #ifndef EPOC |
760ac839 | 5715 | /*The big, slow, and stupid way */ |
c07a80fd | 5716 | STDCHAR buf[8192]; |
4d2c4e07 OF |
5717 | #else |
5718 | /* Need to work around EPOC SDK features */ | |
5719 | /* On WINS: MS VC5 generates calls to _chkstk, */ | |
5720 | /* if a `large' stack frame is allocated */ | |
5721 | /* gcc on MARM does not generate calls like these */ | |
5722 | STDCHAR buf[1024]; | |
5723 | #endif | |
79072805 | 5724 | |
760ac839 | 5725 | screamer2: |
c07a80fd | 5726 | if (rslen) { |
760ac839 LW |
5727 | register STDCHAR *bpe = buf + sizeof(buf); |
5728 | bp = buf; | |
5729 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe) | |
5730 | ; /* keep reading */ | |
5731 | cnt = bp - buf; | |
c07a80fd | 5732 | } |
5733 | else { | |
760ac839 | 5734 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 5735 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
5736 | * both args of ?: operator, causing EOF to change into 255 | |
5737 | */ | |
5738 | if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; } | |
c07a80fd | 5739 | } |
79072805 LW |
5740 | |
5741 | if (append) | |
760ac839 | 5742 | sv_catpvn(sv, (char *) buf, cnt); |
79072805 | 5743 | else |
760ac839 | 5744 | sv_setpvn(sv, (char *) buf, cnt); |
c07a80fd | 5745 | |
5746 | if (i != EOF && /* joy */ | |
5747 | (!rslen || | |
5748 | SvCUR(sv) < rslen || | |
36477c24 | 5749 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
5750 | { |
5751 | append = -1; | |
63e4d877 CS |
5752 | /* |
5753 | * If we're reading from a TTY and we get a short read, | |
5754 | * indicating that the user hit his EOF character, we need | |
5755 | * to notice it now, because if we try to read from the TTY | |
5756 | * again, the EOF condition will disappear. | |
5757 | * | |
5758 | * The comparison of cnt to sizeof(buf) is an optimization | |
5759 | * that prevents unnecessary calls to feof(). | |
5760 | * | |
5761 | * - jik 9/25/96 | |
5762 | */ | |
5763 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
5764 | goto screamer2; | |
79072805 LW |
5765 | } |
5766 | } | |
5767 | ||
1c846c1f | 5768 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
c07a80fd | 5769 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 5770 | i = PerlIO_getc(fp); |
79072805 | 5771 | if (i != '\n') { |
760ac839 | 5772 | PerlIO_ungetc(fp,i); |
79072805 LW |
5773 | break; |
5774 | } | |
5775 | } | |
5776 | } | |
c07a80fd | 5777 | |
7d59b7e4 NIS |
5778 | if (PerlIO_isutf8(fp)) |
5779 | SvUTF8_on(sv); | |
5780 | else | |
5781 | SvUTF8_off(sv); | |
5782 | ||
c07a80fd | 5783 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
5784 | } |
5785 | ||
954c1994 GS |
5786 | /* |
5787 | =for apidoc sv_inc | |
5788 | ||
645c22ef DM |
5789 | Auto-increment of the value in the SV, doing string to numeric conversion |
5790 | if necessary. Handles 'get' magic. | |
954c1994 GS |
5791 | |
5792 | =cut | |
5793 | */ | |
5794 | ||
79072805 | 5795 | void |
864dbfa3 | 5796 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
5797 | { |
5798 | register char *d; | |
463ee0b2 | 5799 | int flags; |
79072805 LW |
5800 | |
5801 | if (!sv) | |
5802 | return; | |
b23a5f78 GB |
5803 | if (SvGMAGICAL(sv)) |
5804 | mg_get(sv); | |
ed6116ce | 5805 | if (SvTHINKFIRST(sv)) { |
0f15f207 | 5806 | if (SvREADONLY(sv)) { |
3280af22 | 5807 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 5808 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 5809 | } |
a0d0e21e | 5810 | if (SvROK(sv)) { |
b5be31e9 | 5811 | IV i; |
9e7bc3e8 JD |
5812 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
5813 | return; | |
56431972 | 5814 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
5815 | sv_unref(sv); |
5816 | sv_setiv(sv, i); | |
a0d0e21e | 5817 | } |
ed6116ce | 5818 | } |
8990e307 | 5819 | flags = SvFLAGS(sv); |
28e5dec8 JH |
5820 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
5821 | /* It's (privately or publicly) a float, but not tested as an | |
5822 | integer, so test it to see. */ | |
d460ef45 | 5823 | (void) SvIV(sv); |
28e5dec8 JH |
5824 | flags = SvFLAGS(sv); |
5825 | } | |
5826 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
5827 | /* It's publicly an integer, or privately an integer-not-float */ | |
5828 | oops_its_int: | |
25da4f38 IZ |
5829 | if (SvIsUV(sv)) { |
5830 | if (SvUVX(sv) == UV_MAX) | |
65202027 | 5831 | sv_setnv(sv, (NV)UV_MAX + 1.0); |
25da4f38 IZ |
5832 | else |
5833 | (void)SvIOK_only_UV(sv); | |
5834 | ++SvUVX(sv); | |
5835 | } else { | |
5836 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 5837 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
5838 | else { |
5839 | (void)SvIOK_only(sv); | |
5840 | ++SvIVX(sv); | |
1c846c1f | 5841 | } |
55497cff | 5842 | } |
79072805 LW |
5843 | return; |
5844 | } | |
28e5dec8 JH |
5845 | if (flags & SVp_NOK) { |
5846 | (void)SvNOK_only(sv); | |
5847 | SvNVX(sv) += 1.0; | |
5848 | return; | |
5849 | } | |
5850 | ||
8990e307 | 5851 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
28e5dec8 JH |
5852 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
5853 | sv_upgrade(sv, SVt_IV); | |
5854 | (void)SvIOK_only(sv); | |
5855 | SvIVX(sv) = 1; | |
79072805 LW |
5856 | return; |
5857 | } | |
463ee0b2 | 5858 | d = SvPVX(sv); |
79072805 LW |
5859 | while (isALPHA(*d)) d++; |
5860 | while (isDIGIT(*d)) d++; | |
5861 | if (*d) { | |
28e5dec8 JH |
5862 | #ifdef PERL_PRESERVE_IVUV |
5863 | /* Got to punt this an an integer if needs be, but we don't issue | |
5864 | warnings. Probably ought to make the sv_iv_please() that does | |
5865 | the conversion if possible, and silently. */ | |
c2988b20 | 5866 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
5867 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
5868 | /* Need to try really hard to see if it's an integer. | |
5869 | 9.22337203685478e+18 is an integer. | |
5870 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
5871 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
5872 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
5873 | or we go insane. */ | |
d460ef45 | 5874 | |
28e5dec8 JH |
5875 | (void) sv_2iv(sv); |
5876 | if (SvIOK(sv)) | |
5877 | goto oops_its_int; | |
5878 | ||
5879 | /* sv_2iv *should* have made this an NV */ | |
5880 | if (flags & SVp_NOK) { | |
5881 | (void)SvNOK_only(sv); | |
5882 | SvNVX(sv) += 1.0; | |
5883 | return; | |
5884 | } | |
5885 | /* I don't think we can get here. Maybe I should assert this | |
5886 | And if we do get here I suspect that sv_setnv will croak. NWC | |
5887 | Fall through. */ | |
5888 | #if defined(USE_LONG_DOUBLE) | |
5889 | 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", | |
5890 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
5891 | #else | |
5892 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_inc punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%g\n", | |
5893 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
5894 | #endif | |
5895 | } | |
5896 | #endif /* PERL_PRESERVE_IVUV */ | |
5897 | sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); | |
79072805 LW |
5898 | return; |
5899 | } | |
5900 | d--; | |
463ee0b2 | 5901 | while (d >= SvPVX(sv)) { |
79072805 LW |
5902 | if (isDIGIT(*d)) { |
5903 | if (++*d <= '9') | |
5904 | return; | |
5905 | *(d--) = '0'; | |
5906 | } | |
5907 | else { | |
9d116dd7 JH |
5908 | #ifdef EBCDIC |
5909 | /* MKS: The original code here died if letters weren't consecutive. | |
5910 | * at least it didn't have to worry about non-C locales. The | |
5911 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 5912 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
5913 | * [A-Za-z] are accepted by isALPHA in the C locale. |
5914 | */ | |
5915 | if (*d != 'z' && *d != 'Z') { | |
5916 | do { ++*d; } while (!isALPHA(*d)); | |
5917 | return; | |
5918 | } | |
5919 | *(d--) -= 'z' - 'a'; | |
5920 | #else | |
79072805 LW |
5921 | ++*d; |
5922 | if (isALPHA(*d)) | |
5923 | return; | |
5924 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 5925 | #endif |
79072805 LW |
5926 | } |
5927 | } | |
5928 | /* oh,oh, the number grew */ | |
5929 | SvGROW(sv, SvCUR(sv) + 2); | |
5930 | SvCUR(sv)++; | |
463ee0b2 | 5931 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
5932 | *d = d[-1]; |
5933 | if (isDIGIT(d[1])) | |
5934 | *d = '1'; | |
5935 | else | |
5936 | *d = d[1]; | |
5937 | } | |
5938 | ||
954c1994 GS |
5939 | /* |
5940 | =for apidoc sv_dec | |
5941 | ||
645c22ef DM |
5942 | Auto-decrement of the value in the SV, doing string to numeric conversion |
5943 | if necessary. Handles 'get' magic. | |
954c1994 GS |
5944 | |
5945 | =cut | |
5946 | */ | |
5947 | ||
79072805 | 5948 | void |
864dbfa3 | 5949 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 5950 | { |
463ee0b2 LW |
5951 | int flags; |
5952 | ||
79072805 LW |
5953 | if (!sv) |
5954 | return; | |
b23a5f78 GB |
5955 | if (SvGMAGICAL(sv)) |
5956 | mg_get(sv); | |
ed6116ce | 5957 | if (SvTHINKFIRST(sv)) { |
0f15f207 | 5958 | if (SvREADONLY(sv)) { |
3280af22 | 5959 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 5960 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 5961 | } |
a0d0e21e | 5962 | if (SvROK(sv)) { |
b5be31e9 | 5963 | IV i; |
9e7bc3e8 JD |
5964 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
5965 | return; | |
56431972 | 5966 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
5967 | sv_unref(sv); |
5968 | sv_setiv(sv, i); | |
a0d0e21e | 5969 | } |
ed6116ce | 5970 | } |
28e5dec8 JH |
5971 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
5972 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 5973 | flags = SvFLAGS(sv); |
28e5dec8 JH |
5974 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
5975 | /* It's publicly an integer, or privately an integer-not-float */ | |
5976 | oops_its_int: | |
25da4f38 IZ |
5977 | if (SvIsUV(sv)) { |
5978 | if (SvUVX(sv) == 0) { | |
5979 | (void)SvIOK_only(sv); | |
5980 | SvIVX(sv) = -1; | |
5981 | } | |
5982 | else { | |
5983 | (void)SvIOK_only_UV(sv); | |
5984 | --SvUVX(sv); | |
1c846c1f | 5985 | } |
25da4f38 IZ |
5986 | } else { |
5987 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 5988 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
5989 | else { |
5990 | (void)SvIOK_only(sv); | |
5991 | --SvIVX(sv); | |
1c846c1f | 5992 | } |
55497cff | 5993 | } |
5994 | return; | |
5995 | } | |
28e5dec8 JH |
5996 | if (flags & SVp_NOK) { |
5997 | SvNVX(sv) -= 1.0; | |
5998 | (void)SvNOK_only(sv); | |
5999 | return; | |
6000 | } | |
8990e307 | 6001 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
6002 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
6003 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 6004 | SvNVX(sv) = -1.0; |
a0d0e21e | 6005 | (void)SvNOK_only(sv); |
79072805 LW |
6006 | return; |
6007 | } | |
28e5dec8 JH |
6008 | #ifdef PERL_PRESERVE_IVUV |
6009 | { | |
c2988b20 | 6010 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6011 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6012 | /* Need to try really hard to see if it's an integer. | |
6013 | 9.22337203685478e+18 is an integer. | |
6014 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6015 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
6016 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
6017 | or we go insane. */ | |
d460ef45 | 6018 | |
28e5dec8 JH |
6019 | (void) sv_2iv(sv); |
6020 | if (SvIOK(sv)) | |
6021 | goto oops_its_int; | |
6022 | ||
6023 | /* sv_2iv *should* have made this an NV */ | |
6024 | if (flags & SVp_NOK) { | |
6025 | (void)SvNOK_only(sv); | |
6026 | SvNVX(sv) -= 1.0; | |
6027 | return; | |
6028 | } | |
6029 | /* I don't think we can get here. Maybe I should assert this | |
6030 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6031 | Fall through. */ | |
6032 | #if defined(USE_LONG_DOUBLE) | |
6033 | 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", | |
6034 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6035 | #else | |
6036 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_dec punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%g\n", | |
6037 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6038 | #endif | |
6039 | } | |
6040 | } | |
6041 | #endif /* PERL_PRESERVE_IVUV */ | |
097ee67d | 6042 | sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
6043 | } |
6044 | ||
954c1994 GS |
6045 | /* |
6046 | =for apidoc sv_mortalcopy | |
6047 | ||
645c22ef DM |
6048 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
6049 | The new SV is marked as mortal. It will be destroyed when the current | |
6050 | context ends. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
6051 | |
6052 | =cut | |
6053 | */ | |
6054 | ||
79072805 LW |
6055 | /* Make a string that will exist for the duration of the expression |
6056 | * evaluation. Actually, it may have to last longer than that, but | |
6057 | * hopefully we won't free it until it has been assigned to a | |
6058 | * permanent location. */ | |
6059 | ||
6060 | SV * | |
864dbfa3 | 6061 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 6062 | { |
463ee0b2 | 6063 | register SV *sv; |
79072805 | 6064 | |
4561caa4 | 6065 | new_SV(sv); |
79072805 | 6066 | sv_setsv(sv,oldstr); |
677b06e3 GS |
6067 | EXTEND_MORTAL(1); |
6068 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
6069 | SvTEMP_on(sv); |
6070 | return sv; | |
6071 | } | |
6072 | ||
954c1994 GS |
6073 | /* |
6074 | =for apidoc sv_newmortal | |
6075 | ||
645c22ef DM |
6076 | Creates a new null SV which is mortal. The reference count of the SV is |
6077 | set to 1. It will be destroyed when the current context ends. See | |
6078 | also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
6079 | |
6080 | =cut | |
6081 | */ | |
6082 | ||
8990e307 | 6083 | SV * |
864dbfa3 | 6084 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
6085 | { |
6086 | register SV *sv; | |
6087 | ||
4561caa4 | 6088 | new_SV(sv); |
8990e307 | 6089 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
6090 | EXTEND_MORTAL(1); |
6091 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
6092 | return sv; |
6093 | } | |
6094 | ||
954c1994 GS |
6095 | /* |
6096 | =for apidoc sv_2mortal | |
6097 | ||
645c22ef DM |
6098 | Marks an existing SV as mortal. The SV will be destroyed when the current |
6099 | context ends. See also C<sv_newmortal> and C<sv_mortalcopy>. | |
954c1994 GS |
6100 | |
6101 | =cut | |
6102 | */ | |
6103 | ||
79072805 | 6104 | SV * |
864dbfa3 | 6105 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 LW |
6106 | { |
6107 | if (!sv) | |
6108 | return sv; | |
d689ffdd | 6109 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 6110 | return sv; |
677b06e3 GS |
6111 | EXTEND_MORTAL(1); |
6112 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 6113 | SvTEMP_on(sv); |
79072805 LW |
6114 | return sv; |
6115 | } | |
6116 | ||
954c1994 GS |
6117 | /* |
6118 | =for apidoc newSVpv | |
6119 | ||
6120 | Creates a new SV and copies a string into it. The reference count for the | |
6121 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
6122 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
6123 | ||
6124 | =cut | |
6125 | */ | |
6126 | ||
79072805 | 6127 | SV * |
864dbfa3 | 6128 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 6129 | { |
463ee0b2 | 6130 | register SV *sv; |
79072805 | 6131 | |
4561caa4 | 6132 | new_SV(sv); |
79072805 LW |
6133 | if (!len) |
6134 | len = strlen(s); | |
6135 | sv_setpvn(sv,s,len); | |
6136 | return sv; | |
6137 | } | |
6138 | ||
954c1994 GS |
6139 | /* |
6140 | =for apidoc newSVpvn | |
6141 | ||
6142 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 6143 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 GS |
6144 | string. You are responsible for ensuring that the source string is at least |
6145 | C<len> bytes long. | |
6146 | ||
6147 | =cut | |
6148 | */ | |
6149 | ||
9da1e3b5 | 6150 | SV * |
864dbfa3 | 6151 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
6152 | { |
6153 | register SV *sv; | |
6154 | ||
6155 | new_SV(sv); | |
9da1e3b5 MUN |
6156 | sv_setpvn(sv,s,len); |
6157 | return sv; | |
6158 | } | |
6159 | ||
1c846c1f NIS |
6160 | /* |
6161 | =for apidoc newSVpvn_share | |
6162 | ||
645c22ef DM |
6163 | Creates a new SV with its SvPVX pointing to a shared string in the string |
6164 | table. If the string does not already exist in the table, it is created | |
6165 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
6166 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
6167 | otherwise the hash is computed. The idea here is that as the string table | |
6168 | is used for shared hash keys these strings will have SvPVX == HeKEY and | |
6169 | hash lookup will avoid string compare. | |
1c846c1f NIS |
6170 | |
6171 | =cut | |
6172 | */ | |
6173 | ||
6174 | SV * | |
c3654f1a | 6175 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
6176 | { |
6177 | register SV *sv; | |
c3654f1a IH |
6178 | bool is_utf8 = FALSE; |
6179 | if (len < 0) { | |
6180 | len = -len; | |
6181 | is_utf8 = TRUE; | |
6182 | } | |
75a54232 JH |
6183 | if (is_utf8 && !(PL_hints & HINT_UTF8_DISTINCT)) { |
6184 | STRLEN tmplen = len; | |
6185 | /* See the note in hv.c:hv_fetch() --jhi */ | |
6186 | src = (char*)bytes_from_utf8((U8*)src, &tmplen, &is_utf8); | |
6187 | len = tmplen; | |
6188 | } | |
1c846c1f NIS |
6189 | if (!hash) |
6190 | PERL_HASH(hash, src, len); | |
6191 | new_SV(sv); | |
6192 | sv_upgrade(sv, SVt_PVIV); | |
c3654f1a | 6193 | SvPVX(sv) = sharepvn(src, is_utf8?-len:len, hash); |
1c846c1f NIS |
6194 | SvCUR(sv) = len; |
6195 | SvUVX(sv) = hash; | |
6196 | SvLEN(sv) = 0; | |
6197 | SvREADONLY_on(sv); | |
6198 | SvFAKE_on(sv); | |
6199 | SvPOK_on(sv); | |
c3654f1a IH |
6200 | if (is_utf8) |
6201 | SvUTF8_on(sv); | |
1c846c1f NIS |
6202 | return sv; |
6203 | } | |
6204 | ||
645c22ef | 6205 | |
cea2e8a9 | 6206 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
6207 | |
6208 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
6209 | * version of the main function, (which may itself be aliased to us). | |
6210 | * Don't access this version directly. | |
6211 | */ | |
6212 | ||
46fc3d4c | 6213 | SV * |
cea2e8a9 | 6214 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 6215 | { |
cea2e8a9 | 6216 | dTHX; |
46fc3d4c | 6217 | register SV *sv; |
6218 | va_list args; | |
46fc3d4c | 6219 | va_start(args, pat); |
c5be433b | 6220 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 6221 | va_end(args); |
6222 | return sv; | |
6223 | } | |
cea2e8a9 | 6224 | #endif |
46fc3d4c | 6225 | |
954c1994 GS |
6226 | /* |
6227 | =for apidoc newSVpvf | |
6228 | ||
645c22ef | 6229 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
6230 | C<sprintf>. |
6231 | ||
6232 | =cut | |
6233 | */ | |
6234 | ||
cea2e8a9 GS |
6235 | SV * |
6236 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
6237 | { | |
6238 | register SV *sv; | |
6239 | va_list args; | |
cea2e8a9 | 6240 | va_start(args, pat); |
c5be433b | 6241 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
6242 | va_end(args); |
6243 | return sv; | |
6244 | } | |
46fc3d4c | 6245 | |
645c22ef DM |
6246 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
6247 | ||
79072805 | 6248 | SV * |
c5be433b GS |
6249 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
6250 | { | |
6251 | register SV *sv; | |
6252 | new_SV(sv); | |
6253 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
6254 | return sv; | |
6255 | } | |
6256 | ||
954c1994 GS |
6257 | /* |
6258 | =for apidoc newSVnv | |
6259 | ||
6260 | Creates a new SV and copies a floating point value into it. | |
6261 | The reference count for the SV is set to 1. | |
6262 | ||
6263 | =cut | |
6264 | */ | |
6265 | ||
c5be433b | 6266 | SV * |
65202027 | 6267 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 6268 | { |
463ee0b2 | 6269 | register SV *sv; |
79072805 | 6270 | |
4561caa4 | 6271 | new_SV(sv); |
79072805 LW |
6272 | sv_setnv(sv,n); |
6273 | return sv; | |
6274 | } | |
6275 | ||
954c1994 GS |
6276 | /* |
6277 | =for apidoc newSViv | |
6278 | ||
6279 | Creates a new SV and copies an integer into it. The reference count for the | |
6280 | SV is set to 1. | |
6281 | ||
6282 | =cut | |
6283 | */ | |
6284 | ||
79072805 | 6285 | SV * |
864dbfa3 | 6286 | Perl_newSViv(pTHX_ IV i) |
79072805 | 6287 | { |
463ee0b2 | 6288 | register SV *sv; |
79072805 | 6289 | |
4561caa4 | 6290 | new_SV(sv); |
79072805 LW |
6291 | sv_setiv(sv,i); |
6292 | return sv; | |
6293 | } | |
6294 | ||
954c1994 | 6295 | /* |
1a3327fb JH |
6296 | =for apidoc newSVuv |
6297 | ||
6298 | Creates a new SV and copies an unsigned integer into it. | |
6299 | The reference count for the SV is set to 1. | |
6300 | ||
6301 | =cut | |
6302 | */ | |
6303 | ||
6304 | SV * | |
6305 | Perl_newSVuv(pTHX_ UV u) | |
6306 | { | |
6307 | register SV *sv; | |
6308 | ||
6309 | new_SV(sv); | |
6310 | sv_setuv(sv,u); | |
6311 | return sv; | |
6312 | } | |
6313 | ||
6314 | /* | |
954c1994 GS |
6315 | =for apidoc newRV_noinc |
6316 | ||
6317 | Creates an RV wrapper for an SV. The reference count for the original | |
6318 | SV is B<not> incremented. | |
6319 | ||
6320 | =cut | |
6321 | */ | |
6322 | ||
2304df62 | 6323 | SV * |
864dbfa3 | 6324 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
6325 | { |
6326 | register SV *sv; | |
6327 | ||
4561caa4 | 6328 | new_SV(sv); |
2304df62 | 6329 | sv_upgrade(sv, SVt_RV); |
76e3520e | 6330 | SvTEMP_off(tmpRef); |
d689ffdd | 6331 | SvRV(sv) = tmpRef; |
2304df62 | 6332 | SvROK_on(sv); |
2304df62 AD |
6333 | return sv; |
6334 | } | |
6335 | ||
ff276b08 | 6336 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
6337 | * newRV_inc is in fact #defined to newRV in sv.h |
6338 | */ | |
6339 | ||
5f05dabc | 6340 | SV * |
864dbfa3 | 6341 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 6342 | { |
5f6447b6 | 6343 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 6344 | } |
5f05dabc | 6345 | |
954c1994 GS |
6346 | /* |
6347 | =for apidoc newSVsv | |
6348 | ||
6349 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 6350 | (Uses C<sv_setsv>). |
954c1994 GS |
6351 | |
6352 | =cut | |
6353 | */ | |
6354 | ||
79072805 | 6355 | SV * |
864dbfa3 | 6356 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 6357 | { |
463ee0b2 | 6358 | register SV *sv; |
79072805 LW |
6359 | |
6360 | if (!old) | |
6361 | return Nullsv; | |
8990e307 | 6362 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 PM |
6363 | if (ckWARN_d(WARN_INTERNAL)) |
6364 | Perl_warner(aTHX_ WARN_INTERNAL, "semi-panic: attempt to dup freed string"); | |
79072805 LW |
6365 | return Nullsv; |
6366 | } | |
4561caa4 | 6367 | new_SV(sv); |
ff68c719 | 6368 | if (SvTEMP(old)) { |
6369 | SvTEMP_off(old); | |
463ee0b2 | 6370 | sv_setsv(sv,old); |
ff68c719 | 6371 | SvTEMP_on(old); |
79072805 LW |
6372 | } |
6373 | else | |
463ee0b2 LW |
6374 | sv_setsv(sv,old); |
6375 | return sv; | |
79072805 LW |
6376 | } |
6377 | ||
645c22ef DM |
6378 | /* |
6379 | =for apidoc sv_reset | |
6380 | ||
6381 | Underlying implementation for the C<reset> Perl function. | |
6382 | Note that the perl-level function is vaguely deprecated. | |
6383 | ||
6384 | =cut | |
6385 | */ | |
6386 | ||
79072805 | 6387 | void |
864dbfa3 | 6388 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 LW |
6389 | { |
6390 | register HE *entry; | |
6391 | register GV *gv; | |
6392 | register SV *sv; | |
6393 | register I32 i; | |
6394 | register PMOP *pm; | |
6395 | register I32 max; | |
4802d5d7 | 6396 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 6397 | |
49d8d3a1 MB |
6398 | if (!stash) |
6399 | return; | |
6400 | ||
79072805 LW |
6401 | if (!*s) { /* reset ?? searches */ |
6402 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 6403 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
6404 | } |
6405 | return; | |
6406 | } | |
6407 | ||
6408 | /* reset variables */ | |
6409 | ||
6410 | if (!HvARRAY(stash)) | |
6411 | return; | |
463ee0b2 LW |
6412 | |
6413 | Zero(todo, 256, char); | |
79072805 | 6414 | while (*s) { |
4802d5d7 | 6415 | i = (unsigned char)*s; |
79072805 LW |
6416 | if (s[1] == '-') { |
6417 | s += 2; | |
6418 | } | |
4802d5d7 | 6419 | max = (unsigned char)*s++; |
79072805 | 6420 | for ( ; i <= max; i++) { |
463ee0b2 LW |
6421 | todo[i] = 1; |
6422 | } | |
a0d0e21e | 6423 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 6424 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
6425 | entry; |
6426 | entry = HeNEXT(entry)) | |
6427 | { | |
1edc1566 | 6428 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 6429 | continue; |
1edc1566 | 6430 | gv = (GV*)HeVAL(entry); |
79072805 | 6431 | sv = GvSV(gv); |
9e35f4b3 GS |
6432 | if (SvTHINKFIRST(sv)) { |
6433 | if (!SvREADONLY(sv) && SvROK(sv)) | |
6434 | sv_unref(sv); | |
6435 | continue; | |
6436 | } | |
a0d0e21e | 6437 | (void)SvOK_off(sv); |
79072805 LW |
6438 | if (SvTYPE(sv) >= SVt_PV) { |
6439 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
6440 | if (SvPVX(sv) != Nullch) |
6441 | *SvPVX(sv) = '\0'; | |
44a8e56a | 6442 | SvTAINT(sv); |
79072805 LW |
6443 | } |
6444 | if (GvAV(gv)) { | |
6445 | av_clear(GvAV(gv)); | |
6446 | } | |
44a8e56a | 6447 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 6448 | hv_clear(GvHV(gv)); |
fa6a1c44 | 6449 | #ifdef USE_ENVIRON_ARRAY |
3280af22 | 6450 | if (gv == PL_envgv) |
79072805 | 6451 | environ[0] = Nullch; |
a0d0e21e | 6452 | #endif |
79072805 LW |
6453 | } |
6454 | } | |
6455 | } | |
6456 | } | |
6457 | } | |
6458 | ||
645c22ef DM |
6459 | /* |
6460 | =for apidoc sv_2io | |
6461 | ||
6462 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
6463 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
6464 | named after the PV if we're a string. | |
6465 | ||
6466 | =cut | |
6467 | */ | |
6468 | ||
46fc3d4c | 6469 | IO* |
864dbfa3 | 6470 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 6471 | { |
6472 | IO* io; | |
6473 | GV* gv; | |
2d8e6c8d | 6474 | STRLEN n_a; |
46fc3d4c | 6475 | |
6476 | switch (SvTYPE(sv)) { | |
6477 | case SVt_PVIO: | |
6478 | io = (IO*)sv; | |
6479 | break; | |
6480 | case SVt_PVGV: | |
6481 | gv = (GV*)sv; | |
6482 | io = GvIO(gv); | |
6483 | if (!io) | |
cea2e8a9 | 6484 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 6485 | break; |
6486 | default: | |
6487 | if (!SvOK(sv)) | |
cea2e8a9 | 6488 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 6489 | if (SvROK(sv)) |
6490 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 6491 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 6492 | if (gv) |
6493 | io = GvIO(gv); | |
6494 | else | |
6495 | io = 0; | |
6496 | if (!io) | |
cea2e8a9 | 6497 | Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a)); |
46fc3d4c | 6498 | break; |
6499 | } | |
6500 | return io; | |
6501 | } | |
6502 | ||
645c22ef DM |
6503 | /* |
6504 | =for apidoc sv_2cv | |
6505 | ||
6506 | Using various gambits, try to get a CV from an SV; in addition, try if | |
6507 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
6508 | ||
6509 | =cut | |
6510 | */ | |
6511 | ||
79072805 | 6512 | CV * |
864dbfa3 | 6513 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 LW |
6514 | { |
6515 | GV *gv; | |
6516 | CV *cv; | |
2d8e6c8d | 6517 | STRLEN n_a; |
79072805 LW |
6518 | |
6519 | if (!sv) | |
93a17b20 | 6520 | return *gvp = Nullgv, Nullcv; |
79072805 | 6521 | switch (SvTYPE(sv)) { |
79072805 LW |
6522 | case SVt_PVCV: |
6523 | *st = CvSTASH(sv); | |
6524 | *gvp = Nullgv; | |
6525 | return (CV*)sv; | |
6526 | case SVt_PVHV: | |
6527 | case SVt_PVAV: | |
6528 | *gvp = Nullgv; | |
6529 | return Nullcv; | |
8990e307 LW |
6530 | case SVt_PVGV: |
6531 | gv = (GV*)sv; | |
a0d0e21e | 6532 | *gvp = gv; |
8990e307 LW |
6533 | *st = GvESTASH(gv); |
6534 | goto fix_gv; | |
6535 | ||
79072805 | 6536 | default: |
a0d0e21e LW |
6537 | if (SvGMAGICAL(sv)) |
6538 | mg_get(sv); | |
6539 | if (SvROK(sv)) { | |
f5284f61 IZ |
6540 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
6541 | tryAMAGICunDEREF(to_cv); | |
6542 | ||
62f274bf GS |
6543 | sv = SvRV(sv); |
6544 | if (SvTYPE(sv) == SVt_PVCV) { | |
6545 | cv = (CV*)sv; | |
6546 | *gvp = Nullgv; | |
6547 | *st = CvSTASH(cv); | |
6548 | return cv; | |
6549 | } | |
6550 | else if(isGV(sv)) | |
6551 | gv = (GV*)sv; | |
6552 | else | |
cea2e8a9 | 6553 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 6554 | } |
62f274bf | 6555 | else if (isGV(sv)) |
79072805 LW |
6556 | gv = (GV*)sv; |
6557 | else | |
2d8e6c8d | 6558 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
6559 | *gvp = gv; |
6560 | if (!gv) | |
6561 | return Nullcv; | |
6562 | *st = GvESTASH(gv); | |
8990e307 | 6563 | fix_gv: |
8ebc5c01 | 6564 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 6565 | SV *tmpsv; |
748a9306 | 6566 | ENTER; |
4633a7c4 | 6567 | tmpsv = NEWSV(704,0); |
16660edb | 6568 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
6569 | /* XXX this is probably not what they think they're getting. |
6570 | * It has the same effect as "sub name;", i.e. just a forward | |
6571 | * declaration! */ | |
774d564b | 6572 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
6573 | newSVOP(OP_CONST, 0, tmpsv), |
6574 | Nullop, | |
8990e307 | 6575 | Nullop); |
748a9306 | 6576 | LEAVE; |
8ebc5c01 | 6577 | if (!GvCVu(gv)) |
cea2e8a9 | 6578 | Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a)); |
8990e307 | 6579 | } |
8ebc5c01 | 6580 | return GvCVu(gv); |
79072805 LW |
6581 | } |
6582 | } | |
6583 | ||
c461cf8f JH |
6584 | /* |
6585 | =for apidoc sv_true | |
6586 | ||
6587 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
6588 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
6589 | instead use an in-line version. | |
c461cf8f JH |
6590 | |
6591 | =cut | |
6592 | */ | |
6593 | ||
79072805 | 6594 | I32 |
864dbfa3 | 6595 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 6596 | { |
8990e307 LW |
6597 | if (!sv) |
6598 | return 0; | |
79072805 | 6599 | if (SvPOK(sv)) { |
4e35701f NIS |
6600 | register XPV* tXpv; |
6601 | if ((tXpv = (XPV*)SvANY(sv)) && | |
c2f1de04 | 6602 | (tXpv->xpv_cur > 1 || |
4e35701f | 6603 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
6604 | return 1; |
6605 | else | |
6606 | return 0; | |
6607 | } | |
6608 | else { | |
6609 | if (SvIOK(sv)) | |
463ee0b2 | 6610 | return SvIVX(sv) != 0; |
79072805 LW |
6611 | else { |
6612 | if (SvNOK(sv)) | |
463ee0b2 | 6613 | return SvNVX(sv) != 0.0; |
79072805 | 6614 | else |
463ee0b2 | 6615 | return sv_2bool(sv); |
79072805 LW |
6616 | } |
6617 | } | |
6618 | } | |
79072805 | 6619 | |
645c22ef DM |
6620 | /* |
6621 | =for apidoc sv_iv | |
6622 | ||
6623 | A private implementation of the C<SvIVx> macro for compilers which can't | |
6624 | cope with complex macro expressions. Always use the macro instead. | |
6625 | ||
6626 | =cut | |
6627 | */ | |
6628 | ||
ff68c719 | 6629 | IV |
864dbfa3 | 6630 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 6631 | { |
25da4f38 IZ |
6632 | if (SvIOK(sv)) { |
6633 | if (SvIsUV(sv)) | |
6634 | return (IV)SvUVX(sv); | |
ff68c719 | 6635 | return SvIVX(sv); |
25da4f38 | 6636 | } |
ff68c719 | 6637 | return sv_2iv(sv); |
85e6fe83 | 6638 | } |
85e6fe83 | 6639 | |
645c22ef DM |
6640 | /* |
6641 | =for apidoc sv_uv | |
6642 | ||
6643 | A private implementation of the C<SvUVx> macro for compilers which can't | |
6644 | cope with complex macro expressions. Always use the macro instead. | |
6645 | ||
6646 | =cut | |
6647 | */ | |
6648 | ||
ff68c719 | 6649 | UV |
864dbfa3 | 6650 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 6651 | { |
25da4f38 IZ |
6652 | if (SvIOK(sv)) { |
6653 | if (SvIsUV(sv)) | |
6654 | return SvUVX(sv); | |
6655 | return (UV)SvIVX(sv); | |
6656 | } | |
ff68c719 | 6657 | return sv_2uv(sv); |
6658 | } | |
85e6fe83 | 6659 | |
645c22ef DM |
6660 | /* |
6661 | =for apidoc sv_nv | |
6662 | ||
6663 | A private implementation of the C<SvNVx> macro for compilers which can't | |
6664 | cope with complex macro expressions. Always use the macro instead. | |
6665 | ||
6666 | =cut | |
6667 | */ | |
6668 | ||
65202027 | 6669 | NV |
864dbfa3 | 6670 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 6671 | { |
ff68c719 | 6672 | if (SvNOK(sv)) |
6673 | return SvNVX(sv); | |
6674 | return sv_2nv(sv); | |
79072805 | 6675 | } |
79072805 | 6676 | |
645c22ef DM |
6677 | /* |
6678 | =for apidoc sv_pv | |
6679 | ||
6680 | A private implementation of the C<SvPV_nolen> macro for compilers which can't | |
6681 | cope with complex macro expressions. Always use the macro instead. | |
6682 | ||
6683 | =cut | |
6684 | */ | |
6685 | ||
79072805 | 6686 | char * |
864dbfa3 | 6687 | Perl_sv_pv(pTHX_ SV *sv) |
1fa8b10d JD |
6688 | { |
6689 | STRLEN n_a; | |
6690 | ||
6691 | if (SvPOK(sv)) | |
6692 | return SvPVX(sv); | |
6693 | ||
6694 | return sv_2pv(sv, &n_a); | |
6695 | } | |
6696 | ||
645c22ef DM |
6697 | /* |
6698 | =for apidoc sv_pvn | |
6699 | ||
6700 | A private implementation of the C<SvPV> macro for compilers which can't | |
6701 | cope with complex macro expressions. Always use the macro instead. | |
6702 | ||
6703 | =cut | |
6704 | */ | |
6705 | ||
1fa8b10d | 6706 | char * |
864dbfa3 | 6707 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 6708 | { |
85e6fe83 LW |
6709 | if (SvPOK(sv)) { |
6710 | *lp = SvCUR(sv); | |
a0d0e21e | 6711 | return SvPVX(sv); |
85e6fe83 | 6712 | } |
463ee0b2 | 6713 | return sv_2pv(sv, lp); |
79072805 | 6714 | } |
79072805 | 6715 | |
c461cf8f JH |
6716 | /* |
6717 | =for apidoc sv_pvn_force | |
6718 | ||
6719 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
6720 | A private implementation of the C<SvPV_force> macro for compilers which |
6721 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f JH |
6722 | |
6723 | =cut | |
6724 | */ | |
6725 | ||
a0d0e21e | 6726 | char * |
864dbfa3 | 6727 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) |
a0d0e21e | 6728 | { |
36f65ada | 6729 | return sv_pvn_force_flags(sv, lp, SV_GMAGIC); |
8d6d96c1 HS |
6730 | } |
6731 | ||
6732 | /* | |
6733 | =for apidoc sv_pvn_force_flags | |
6734 | ||
6735 | Get a sensible string out of the SV somehow. | |
6736 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
6737 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
6738 | implemented in terms of this function. | |
645c22ef DM |
6739 | You normally want to use the various wrapper macros instead: see |
6740 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
6741 | |
6742 | =cut | |
6743 | */ | |
6744 | ||
6745 | char * | |
6746 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
6747 | { | |
a0d0e21e LW |
6748 | char *s; |
6749 | ||
6fc92669 GS |
6750 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
6751 | sv_force_normal(sv); | |
1c846c1f | 6752 | |
a0d0e21e LW |
6753 | if (SvPOK(sv)) { |
6754 | *lp = SvCUR(sv); | |
6755 | } | |
6756 | else { | |
748a9306 | 6757 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
cea2e8a9 | 6758 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
6fc92669 | 6759 | PL_op_name[PL_op->op_type]); |
a0d0e21e | 6760 | } |
4633a7c4 | 6761 | else |
8d6d96c1 | 6762 | s = sv_2pv_flags(sv, lp, flags); |
a0d0e21e LW |
6763 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
6764 | STRLEN len = *lp; | |
1c846c1f | 6765 | |
a0d0e21e LW |
6766 | if (SvROK(sv)) |
6767 | sv_unref(sv); | |
6768 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
6769 | SvGROW(sv, len + 1); | |
6770 | Move(s,SvPVX(sv),len,char); | |
6771 | SvCUR_set(sv, len); | |
6772 | *SvEND(sv) = '\0'; | |
6773 | } | |
6774 | if (!SvPOK(sv)) { | |
6775 | SvPOK_on(sv); /* validate pointer */ | |
6776 | SvTAINT(sv); | |
1d7c1841 GS |
6777 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
6778 | PTR2UV(sv),SvPVX(sv))); | |
a0d0e21e LW |
6779 | } |
6780 | } | |
6781 | return SvPVX(sv); | |
6782 | } | |
6783 | ||
645c22ef DM |
6784 | /* |
6785 | =for apidoc sv_pvbyte | |
6786 | ||
6787 | A private implementation of the C<SvPVbyte_nolen> macro for compilers | |
6788 | which can't cope with complex macro expressions. Always use the macro | |
6789 | instead. | |
6790 | ||
6791 | =cut | |
6792 | */ | |
6793 | ||
a0d0e21e | 6794 | char * |
7340a771 GS |
6795 | Perl_sv_pvbyte(pTHX_ SV *sv) |
6796 | { | |
ffebcc3e | 6797 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6798 | return sv_pv(sv); |
6799 | } | |
6800 | ||
645c22ef DM |
6801 | /* |
6802 | =for apidoc sv_pvbyten | |
6803 | ||
6804 | A private implementation of the C<SvPVbyte> macro for compilers | |
6805 | which can't cope with complex macro expressions. Always use the macro | |
6806 | instead. | |
6807 | ||
6808 | =cut | |
6809 | */ | |
6810 | ||
7340a771 GS |
6811 | char * |
6812 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
6813 | { | |
ffebcc3e | 6814 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6815 | return sv_pvn(sv,lp); |
6816 | } | |
6817 | ||
645c22ef DM |
6818 | /* |
6819 | =for apidoc sv_pvbyten_force | |
6820 | ||
6821 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
6822 | which can't cope with complex macro expressions. Always use the macro | |
6823 | instead. | |
6824 | ||
6825 | =cut | |
6826 | */ | |
6827 | ||
7340a771 GS |
6828 | char * |
6829 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
6830 | { | |
ffebcc3e | 6831 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6832 | return sv_pvn_force(sv,lp); |
6833 | } | |
6834 | ||
645c22ef DM |
6835 | /* |
6836 | =for apidoc sv_pvutf8 | |
6837 | ||
6838 | A private implementation of the C<SvPVutf8_nolen> macro for compilers | |
6839 | which can't cope with complex macro expressions. Always use the macro | |
6840 | instead. | |
6841 | ||
6842 | =cut | |
6843 | */ | |
6844 | ||
7340a771 GS |
6845 | char * |
6846 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
6847 | { | |
560a288e | 6848 | sv_utf8_upgrade(sv); |
7340a771 GS |
6849 | return sv_pv(sv); |
6850 | } | |
6851 | ||
645c22ef DM |
6852 | /* |
6853 | =for apidoc sv_pvutf8n | |
6854 | ||
6855 | A private implementation of the C<SvPVutf8> macro for compilers | |
6856 | which can't cope with complex macro expressions. Always use the macro | |
6857 | instead. | |
6858 | ||
6859 | =cut | |
6860 | */ | |
6861 | ||
7340a771 GS |
6862 | char * |
6863 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
6864 | { | |
560a288e | 6865 | sv_utf8_upgrade(sv); |
7340a771 GS |
6866 | return sv_pvn(sv,lp); |
6867 | } | |
6868 | ||
c461cf8f JH |
6869 | /* |
6870 | =for apidoc sv_pvutf8n_force | |
6871 | ||
645c22ef DM |
6872 | A private implementation of the C<SvPVutf8_force> macro for compilers |
6873 | which can't cope with complex macro expressions. Always use the macro | |
6874 | instead. | |
c461cf8f JH |
6875 | |
6876 | =cut | |
6877 | */ | |
6878 | ||
7340a771 GS |
6879 | char * |
6880 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
6881 | { | |
560a288e | 6882 | sv_utf8_upgrade(sv); |
7340a771 GS |
6883 | return sv_pvn_force(sv,lp); |
6884 | } | |
6885 | ||
c461cf8f JH |
6886 | /* |
6887 | =for apidoc sv_reftype | |
6888 | ||
6889 | Returns a string describing what the SV is a reference to. | |
6890 | ||
6891 | =cut | |
6892 | */ | |
6893 | ||
7340a771 | 6894 | char * |
864dbfa3 | 6895 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e LW |
6896 | { |
6897 | if (ob && SvOBJECT(sv)) | |
6898 | return HvNAME(SvSTASH(sv)); | |
6899 | else { | |
6900 | switch (SvTYPE(sv)) { | |
6901 | case SVt_NULL: | |
6902 | case SVt_IV: | |
6903 | case SVt_NV: | |
6904 | case SVt_RV: | |
6905 | case SVt_PV: | |
6906 | case SVt_PVIV: | |
6907 | case SVt_PVNV: | |
6908 | case SVt_PVMG: | |
6909 | case SVt_PVBM: | |
6910 | if (SvROK(sv)) | |
6911 | return "REF"; | |
6912 | else | |
6913 | return "SCALAR"; | |
6914 | case SVt_PVLV: return "LVALUE"; | |
6915 | case SVt_PVAV: return "ARRAY"; | |
6916 | case SVt_PVHV: return "HASH"; | |
6917 | case SVt_PVCV: return "CODE"; | |
6918 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 6919 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 6920 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
6921 | default: return "UNKNOWN"; |
6922 | } | |
6923 | } | |
6924 | } | |
6925 | ||
954c1994 GS |
6926 | /* |
6927 | =for apidoc sv_isobject | |
6928 | ||
6929 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
6930 | object. If the SV is not an RV, or if the object is not blessed, then this | |
6931 | will return false. | |
6932 | ||
6933 | =cut | |
6934 | */ | |
6935 | ||
463ee0b2 | 6936 | int |
864dbfa3 | 6937 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 6938 | { |
68dc0745 | 6939 | if (!sv) |
6940 | return 0; | |
6941 | if (SvGMAGICAL(sv)) | |
6942 | mg_get(sv); | |
85e6fe83 LW |
6943 | if (!SvROK(sv)) |
6944 | return 0; | |
6945 | sv = (SV*)SvRV(sv); | |
6946 | if (!SvOBJECT(sv)) | |
6947 | return 0; | |
6948 | return 1; | |
6949 | } | |
6950 | ||
954c1994 GS |
6951 | /* |
6952 | =for apidoc sv_isa | |
6953 | ||
6954 | Returns a boolean indicating whether the SV is blessed into the specified | |
6955 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
6956 | an inheritance relationship. | |
6957 | ||
6958 | =cut | |
6959 | */ | |
6960 | ||
85e6fe83 | 6961 | int |
864dbfa3 | 6962 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 6963 | { |
68dc0745 | 6964 | if (!sv) |
6965 | return 0; | |
6966 | if (SvGMAGICAL(sv)) | |
6967 | mg_get(sv); | |
ed6116ce | 6968 | if (!SvROK(sv)) |
463ee0b2 | 6969 | return 0; |
ed6116ce LW |
6970 | sv = (SV*)SvRV(sv); |
6971 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
6972 | return 0; |
6973 | ||
6974 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
6975 | } | |
6976 | ||
954c1994 GS |
6977 | /* |
6978 | =for apidoc newSVrv | |
6979 | ||
6980 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
6981 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
6982 | be blessed in the specified package. The new SV is returned and its | |
6983 | reference count is 1. | |
6984 | ||
6985 | =cut | |
6986 | */ | |
6987 | ||
463ee0b2 | 6988 | SV* |
864dbfa3 | 6989 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 6990 | { |
463ee0b2 LW |
6991 | SV *sv; |
6992 | ||
4561caa4 | 6993 | new_SV(sv); |
51cf62d8 | 6994 | |
2213622d | 6995 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 | 6996 | SvAMAGIC_off(rv); |
51cf62d8 | 6997 | |
0199fce9 JD |
6998 | if (SvTYPE(rv) >= SVt_PVMG) { |
6999 | U32 refcnt = SvREFCNT(rv); | |
7000 | SvREFCNT(rv) = 0; | |
7001 | sv_clear(rv); | |
7002 | SvFLAGS(rv) = 0; | |
7003 | SvREFCNT(rv) = refcnt; | |
7004 | } | |
7005 | ||
51cf62d8 | 7006 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
7007 | sv_upgrade(rv, SVt_RV); |
7008 | else if (SvTYPE(rv) > SVt_RV) { | |
7009 | (void)SvOOK_off(rv); | |
7010 | if (SvPVX(rv) && SvLEN(rv)) | |
7011 | Safefree(SvPVX(rv)); | |
7012 | SvCUR_set(rv, 0); | |
7013 | SvLEN_set(rv, 0); | |
7014 | } | |
51cf62d8 OT |
7015 | |
7016 | (void)SvOK_off(rv); | |
053fc874 | 7017 | SvRV(rv) = sv; |
ed6116ce | 7018 | SvROK_on(rv); |
463ee0b2 | 7019 | |
a0d0e21e LW |
7020 | if (classname) { |
7021 | HV* stash = gv_stashpv(classname, TRUE); | |
7022 | (void)sv_bless(rv, stash); | |
7023 | } | |
7024 | return sv; | |
7025 | } | |
7026 | ||
954c1994 GS |
7027 | /* |
7028 | =for apidoc sv_setref_pv | |
7029 | ||
7030 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
7031 | argument will be upgraded to an RV. That RV will be modified to point to | |
7032 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
7033 | into the SV. The C<classname> argument indicates the package for the | |
7034 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7035 | will be returned and will have a reference count of 1. | |
7036 | ||
7037 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
7038 | objects will become corrupted by the pointer copy process. | |
7039 | ||
7040 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
7041 | ||
7042 | =cut | |
7043 | */ | |
7044 | ||
a0d0e21e | 7045 | SV* |
864dbfa3 | 7046 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 7047 | { |
189b2af5 | 7048 | if (!pv) { |
3280af22 | 7049 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
7050 | SvSETMAGIC(rv); |
7051 | } | |
a0d0e21e | 7052 | else |
56431972 | 7053 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
7054 | return rv; |
7055 | } | |
7056 | ||
954c1994 GS |
7057 | /* |
7058 | =for apidoc sv_setref_iv | |
7059 | ||
7060 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
7061 | argument will be upgraded to an RV. That RV will be modified to point to | |
7062 | the new SV. The C<classname> argument indicates the package for the | |
7063 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7064 | will be returned and will have a reference count of 1. | |
7065 | ||
7066 | =cut | |
7067 | */ | |
7068 | ||
a0d0e21e | 7069 | SV* |
864dbfa3 | 7070 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
7071 | { |
7072 | sv_setiv(newSVrv(rv,classname), iv); | |
7073 | return rv; | |
7074 | } | |
7075 | ||
954c1994 | 7076 | /* |
e1c57cef JH |
7077 | =for apidoc sv_setref_uv |
7078 | ||
7079 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
7080 | argument will be upgraded to an RV. That RV will be modified to point to | |
7081 | the new SV. The C<classname> argument indicates the package for the | |
7082 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7083 | will be returned and will have a reference count of 1. | |
7084 | ||
7085 | =cut | |
7086 | */ | |
7087 | ||
7088 | SV* | |
7089 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
7090 | { | |
7091 | sv_setuv(newSVrv(rv,classname), uv); | |
7092 | return rv; | |
7093 | } | |
7094 | ||
7095 | /* | |
954c1994 GS |
7096 | =for apidoc sv_setref_nv |
7097 | ||
7098 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
7099 | argument will be upgraded to an RV. That RV will be modified to point to | |
7100 | the new SV. The C<classname> argument indicates the package for the | |
7101 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7102 | will be returned and will have a reference count of 1. | |
7103 | ||
7104 | =cut | |
7105 | */ | |
7106 | ||
a0d0e21e | 7107 | SV* |
65202027 | 7108 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
7109 | { |
7110 | sv_setnv(newSVrv(rv,classname), nv); | |
7111 | return rv; | |
7112 | } | |
463ee0b2 | 7113 | |
954c1994 GS |
7114 | /* |
7115 | =for apidoc sv_setref_pvn | |
7116 | ||
7117 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
7118 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
7119 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
7120 | argument indicates the package for the blessing. Set C<classname> to | |
7121 | C<Nullch> to avoid the blessing. The new SV will be returned and will have | |
7122 | a reference count of 1. | |
7123 | ||
7124 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
7125 | ||
7126 | =cut | |
7127 | */ | |
7128 | ||
a0d0e21e | 7129 | SV* |
864dbfa3 | 7130 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
7131 | { |
7132 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
7133 | return rv; |
7134 | } | |
7135 | ||
954c1994 GS |
7136 | /* |
7137 | =for apidoc sv_bless | |
7138 | ||
7139 | Blesses an SV into a specified package. The SV must be an RV. The package | |
7140 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
7141 | of the SV is unaffected. | |
7142 | ||
7143 | =cut | |
7144 | */ | |
7145 | ||
a0d0e21e | 7146 | SV* |
864dbfa3 | 7147 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 7148 | { |
76e3520e | 7149 | SV *tmpRef; |
a0d0e21e | 7150 | if (!SvROK(sv)) |
cea2e8a9 | 7151 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
7152 | tmpRef = SvRV(sv); |
7153 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
7154 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 7155 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
7156 | if (SvOBJECT(tmpRef)) { |
7157 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7158 | --PL_sv_objcount; |
76e3520e | 7159 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 7160 | } |
a0d0e21e | 7161 | } |
76e3520e GS |
7162 | SvOBJECT_on(tmpRef); |
7163 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7164 | ++PL_sv_objcount; |
76e3520e GS |
7165 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
7166 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e | 7167 | |
2e3febc6 CS |
7168 | if (Gv_AMG(stash)) |
7169 | SvAMAGIC_on(sv); | |
7170 | else | |
7171 | SvAMAGIC_off(sv); | |
a0d0e21e LW |
7172 | |
7173 | return sv; | |
7174 | } | |
7175 | ||
645c22ef DM |
7176 | /* Downgrades a PVGV to a PVMG. |
7177 | * | |
7178 | * XXX This function doesn't actually appear to be used anywhere | |
7179 | * DAPM 15-Jun-01 | |
7180 | */ | |
7181 | ||
76e3520e | 7182 | STATIC void |
cea2e8a9 | 7183 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 7184 | { |
850fabdf GS |
7185 | void *xpvmg; |
7186 | ||
a0d0e21e LW |
7187 | assert(SvTYPE(sv) == SVt_PVGV); |
7188 | SvFAKE_off(sv); | |
7189 | if (GvGP(sv)) | |
1edc1566 | 7190 | gp_free((GV*)sv); |
e826b3c7 GS |
7191 | if (GvSTASH(sv)) { |
7192 | SvREFCNT_dec(GvSTASH(sv)); | |
7193 | GvSTASH(sv) = Nullhv; | |
7194 | } | |
14befaf4 | 7195 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 7196 | Safefree(GvNAME(sv)); |
a5f75d66 | 7197 | GvMULTI_off(sv); |
850fabdf GS |
7198 | |
7199 | /* need to keep SvANY(sv) in the right arena */ | |
7200 | xpvmg = new_XPVMG(); | |
7201 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
7202 | del_XPVGV(SvANY(sv)); | |
7203 | SvANY(sv) = xpvmg; | |
7204 | ||
a0d0e21e LW |
7205 | SvFLAGS(sv) &= ~SVTYPEMASK; |
7206 | SvFLAGS(sv) |= SVt_PVMG; | |
7207 | } | |
7208 | ||
954c1994 | 7209 | /* |
840a7b70 | 7210 | =for apidoc sv_unref_flags |
954c1994 GS |
7211 | |
7212 | Unsets the RV status of the SV, and decrements the reference count of | |
7213 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
7214 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
7215 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
7216 | (otherwise the decrementing is conditional on the reference count being | |
7217 | different from one or the reference being a readonly SV). | |
7889fe52 | 7218 | See C<SvROK_off>. |
954c1994 GS |
7219 | |
7220 | =cut | |
7221 | */ | |
7222 | ||
ed6116ce | 7223 | void |
840a7b70 | 7224 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 7225 | { |
a0d0e21e | 7226 | SV* rv = SvRV(sv); |
810b8aa5 GS |
7227 | |
7228 | if (SvWEAKREF(sv)) { | |
7229 | sv_del_backref(sv); | |
7230 | SvWEAKREF_off(sv); | |
7231 | SvRV(sv) = 0; | |
7232 | return; | |
7233 | } | |
ed6116ce LW |
7234 | SvRV(sv) = 0; |
7235 | SvROK_off(sv); | |
840a7b70 | 7236 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv) || flags) /* SV_IMMEDIATE_UNREF */ |
4633a7c4 | 7237 | SvREFCNT_dec(rv); |
840a7b70 | 7238 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 7239 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 7240 | } |
8990e307 | 7241 | |
840a7b70 IZ |
7242 | /* |
7243 | =for apidoc sv_unref | |
7244 | ||
7245 | Unsets the RV status of the SV, and decrements the reference count of | |
7246 | whatever was being referenced by the RV. This can almost be thought of | |
7247 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 7248 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
7249 | |
7250 | =cut | |
7251 | */ | |
7252 | ||
7253 | void | |
7254 | Perl_sv_unref(pTHX_ SV *sv) | |
7255 | { | |
7256 | sv_unref_flags(sv, 0); | |
7257 | } | |
7258 | ||
645c22ef DM |
7259 | /* |
7260 | =for apidoc sv_taint | |
7261 | ||
7262 | Taint an SV. Use C<SvTAINTED_on> instead. | |
7263 | =cut | |
7264 | */ | |
7265 | ||
bbce6d69 | 7266 | void |
864dbfa3 | 7267 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 7268 | { |
14befaf4 | 7269 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 7270 | } |
7271 | ||
645c22ef DM |
7272 | /* |
7273 | =for apidoc sv_untaint | |
7274 | ||
7275 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
7276 | =cut | |
7277 | */ | |
7278 | ||
bbce6d69 | 7279 | void |
864dbfa3 | 7280 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 7281 | { |
13f57bf8 | 7282 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7283 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 7284 | if (mg) |
565764a8 | 7285 | mg->mg_len &= ~1; |
36477c24 | 7286 | } |
bbce6d69 | 7287 | } |
7288 | ||
645c22ef DM |
7289 | /* |
7290 | =for apidoc sv_tainted | |
7291 | ||
7292 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
7293 | =cut | |
7294 | */ | |
7295 | ||
bbce6d69 | 7296 | bool |
864dbfa3 | 7297 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 7298 | { |
13f57bf8 | 7299 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7300 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 7301 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 7302 | return TRUE; |
7303 | } | |
7304 | return FALSE; | |
bbce6d69 | 7305 | } |
7306 | ||
954c1994 GS |
7307 | /* |
7308 | =for apidoc sv_setpviv | |
7309 | ||
7310 | Copies an integer into the given SV, also updating its string value. | |
7311 | Does not handle 'set' magic. See C<sv_setpviv_mg>. | |
7312 | ||
7313 | =cut | |
7314 | */ | |
7315 | ||
84902520 | 7316 | void |
864dbfa3 | 7317 | Perl_sv_setpviv(pTHX_ SV *sv, IV iv) |
84902520 | 7318 | { |
25da4f38 IZ |
7319 | char buf[TYPE_CHARS(UV)]; |
7320 | char *ebuf; | |
7321 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
84902520 | 7322 | |
25da4f38 | 7323 | sv_setpvn(sv, ptr, ebuf - ptr); |
84902520 TB |
7324 | } |
7325 | ||
954c1994 GS |
7326 | /* |
7327 | =for apidoc sv_setpviv_mg | |
7328 | ||
7329 | Like C<sv_setpviv>, but also handles 'set' magic. | |
7330 | ||
7331 | =cut | |
7332 | */ | |
7333 | ||
ef50df4b | 7334 | void |
864dbfa3 | 7335 | Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) |
ef50df4b | 7336 | { |
25da4f38 IZ |
7337 | char buf[TYPE_CHARS(UV)]; |
7338 | char *ebuf; | |
7339 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
7340 | ||
7341 | sv_setpvn(sv, ptr, ebuf - ptr); | |
ef50df4b GS |
7342 | SvSETMAGIC(sv); |
7343 | } | |
7344 | ||
cea2e8a9 | 7345 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7346 | |
7347 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7348 | * version of the main function, (which may itself be aliased to us). | |
7349 | * Don't access this version directly. | |
7350 | */ | |
7351 | ||
cea2e8a9 GS |
7352 | void |
7353 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
7354 | { | |
7355 | dTHX; | |
7356 | va_list args; | |
7357 | va_start(args, pat); | |
c5be433b | 7358 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
7359 | va_end(args); |
7360 | } | |
7361 | ||
645c22ef DM |
7362 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7363 | * version of the main function, (which may itself be aliased to us). | |
7364 | * Don't access this version directly. | |
7365 | */ | |
cea2e8a9 GS |
7366 | |
7367 | void | |
7368 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7369 | { | |
7370 | dTHX; | |
7371 | va_list args; | |
7372 | va_start(args, pat); | |
c5be433b | 7373 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 7374 | va_end(args); |
cea2e8a9 GS |
7375 | } |
7376 | #endif | |
7377 | ||
954c1994 GS |
7378 | /* |
7379 | =for apidoc sv_setpvf | |
7380 | ||
7381 | Processes its arguments like C<sprintf> and sets an SV to the formatted | |
7382 | output. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
7383 | ||
7384 | =cut | |
7385 | */ | |
7386 | ||
46fc3d4c | 7387 | void |
864dbfa3 | 7388 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7389 | { |
7390 | va_list args; | |
46fc3d4c | 7391 | va_start(args, pat); |
c5be433b | 7392 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 7393 | va_end(args); |
7394 | } | |
7395 | ||
645c22ef DM |
7396 | /* backend for C<sv_setpvf> and C<sv_setpvf_nocontext> */ |
7397 | ||
c5be433b GS |
7398 | void |
7399 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
7400 | { | |
7401 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7402 | } | |
ef50df4b | 7403 | |
954c1994 GS |
7404 | /* |
7405 | =for apidoc sv_setpvf_mg | |
7406 | ||
7407 | Like C<sv_setpvf>, but also handles 'set' magic. | |
7408 | ||
7409 | =cut | |
7410 | */ | |
7411 | ||
ef50df4b | 7412 | void |
864dbfa3 | 7413 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7414 | { |
7415 | va_list args; | |
ef50df4b | 7416 | va_start(args, pat); |
c5be433b | 7417 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 7418 | va_end(args); |
c5be433b GS |
7419 | } |
7420 | ||
645c22ef DM |
7421 | /* backend for C<sv_setpvf_mg> C<setpvf_mg_nocontext> */ |
7422 | ||
c5be433b GS |
7423 | void |
7424 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7425 | { | |
7426 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7427 | SvSETMAGIC(sv); |
7428 | } | |
7429 | ||
cea2e8a9 | 7430 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7431 | |
7432 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7433 | * version of the main function, (which may itself be aliased to us). | |
7434 | * Don't access this version directly. | |
7435 | */ | |
7436 | ||
cea2e8a9 GS |
7437 | void |
7438 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
7439 | { | |
7440 | dTHX; | |
7441 | va_list args; | |
7442 | va_start(args, pat); | |
c5be433b | 7443 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
7444 | va_end(args); |
7445 | } | |
7446 | ||
645c22ef DM |
7447 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7448 | * version of the main function, (which may itself be aliased to us). | |
7449 | * Don't access this version directly. | |
7450 | */ | |
7451 | ||
cea2e8a9 GS |
7452 | void |
7453 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7454 | { | |
7455 | dTHX; | |
7456 | va_list args; | |
7457 | va_start(args, pat); | |
c5be433b | 7458 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 7459 | va_end(args); |
cea2e8a9 GS |
7460 | } |
7461 | #endif | |
7462 | ||
954c1994 GS |
7463 | /* |
7464 | =for apidoc sv_catpvf | |
7465 | ||
d5ce4a7c GA |
7466 | Processes its arguments like C<sprintf> and appends the formatted |
7467 | output to an SV. If the appended data contains "wide" characters | |
7468 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
7469 | and characters >255 formatted with %c), the original SV might get | |
7470 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. | |
7471 | C<SvSETMAGIC()> must typically be called after calling this function | |
7472 | to handle 'set' magic. | |
954c1994 | 7473 | |
d5ce4a7c | 7474 | =cut */ |
954c1994 | 7475 | |
46fc3d4c | 7476 | void |
864dbfa3 | 7477 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7478 | { |
7479 | va_list args; | |
46fc3d4c | 7480 | va_start(args, pat); |
c5be433b | 7481 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 7482 | va_end(args); |
7483 | } | |
7484 | ||
645c22ef DM |
7485 | /* backend for C<sv_catpvf> and C<catpvf_mg_nocontext> */ |
7486 | ||
ef50df4b | 7487 | void |
c5be433b GS |
7488 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
7489 | { | |
7490 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7491 | } | |
7492 | ||
954c1994 GS |
7493 | /* |
7494 | =for apidoc sv_catpvf_mg | |
7495 | ||
7496 | Like C<sv_catpvf>, but also handles 'set' magic. | |
7497 | ||
7498 | =cut | |
7499 | */ | |
7500 | ||
c5be433b | 7501 | void |
864dbfa3 | 7502 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7503 | { |
7504 | va_list args; | |
ef50df4b | 7505 | va_start(args, pat); |
c5be433b | 7506 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 7507 | va_end(args); |
c5be433b GS |
7508 | } |
7509 | ||
645c22ef DM |
7510 | /* backend for C<catpvf_mg> and C<catpvf_mg_nocontext> */ |
7511 | ||
c5be433b GS |
7512 | void |
7513 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7514 | { | |
7515 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7516 | SvSETMAGIC(sv); |
7517 | } | |
7518 | ||
954c1994 GS |
7519 | /* |
7520 | =for apidoc sv_vsetpvfn | |
7521 | ||
7522 | Works like C<vcatpvfn> but copies the text into the SV instead of | |
7523 | appending it. | |
7524 | ||
645c22ef DM |
7525 | Usually used via one of its frontends C<sv_setpvf> and C<sv_setpvf_mg>. |
7526 | ||
954c1994 GS |
7527 | =cut |
7528 | */ | |
7529 | ||
46fc3d4c | 7530 | void |
7d5ea4e7 | 7531 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7532 | { |
7533 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 7534 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 7535 | } |
7536 | ||
645c22ef DM |
7537 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
7538 | ||
2d00ba3b | 7539 | STATIC I32 |
9dd79c3f | 7540 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
7541 | { |
7542 | I32 var = 0; | |
7543 | switch (**pattern) { | |
7544 | case '1': case '2': case '3': | |
7545 | case '4': case '5': case '6': | |
7546 | case '7': case '8': case '9': | |
7547 | while (isDIGIT(**pattern)) | |
7548 | var = var * 10 + (*(*pattern)++ - '0'); | |
7549 | } | |
7550 | return var; | |
7551 | } | |
9dd79c3f | 7552 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 7553 | |
954c1994 GS |
7554 | /* |
7555 | =for apidoc sv_vcatpvfn | |
7556 | ||
7557 | Processes its arguments like C<vsprintf> and appends the formatted output | |
7558 | to an SV. Uses an array of SVs if the C style variable argument list is | |
7559 | missing (NULL). When running with taint checks enabled, indicates via | |
7560 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
7561 | locales). | |
7562 | ||
645c22ef DM |
7563 | Usually used via one of its frontends C<sv_catpvf> and C<sv_catpvf_mg>. |
7564 | ||
954c1994 GS |
7565 | =cut |
7566 | */ | |
7567 | ||
46fc3d4c | 7568 | void |
7d5ea4e7 | 7569 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7570 | { |
7571 | char *p; | |
7572 | char *q; | |
7573 | char *patend; | |
fc36a67e | 7574 | STRLEN origlen; |
46fc3d4c | 7575 | I32 svix = 0; |
c635e13b | 7576 | static char nullstr[] = "(null)"; |
9c5ffd7c | 7577 | SV *argsv = Nullsv; |
46fc3d4c | 7578 | |
7579 | /* no matter what, this is a string now */ | |
fc36a67e | 7580 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 7581 | |
fc36a67e | 7582 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 7583 | if (patlen == 0) |
7584 | return; | |
fc36a67e | 7585 | if (patlen == 2 && pat[0] == '%') { |
7586 | switch (pat[1]) { | |
7587 | case 's': | |
c635e13b | 7588 | if (args) { |
7589 | char *s = va_arg(*args, char*); | |
7590 | sv_catpv(sv, s ? s : nullstr); | |
7591 | } | |
7e2040f0 | 7592 | else if (svix < svmax) { |
fc36a67e | 7593 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
7594 | if (DO_UTF8(*svargs)) |
7595 | SvUTF8_on(sv); | |
7596 | } | |
fc36a67e | 7597 | return; |
7598 | case '_': | |
7599 | if (args) { | |
7e2040f0 GS |
7600 | argsv = va_arg(*args, SV*); |
7601 | sv_catsv(sv, argsv); | |
7602 | if (DO_UTF8(argsv)) | |
7603 | SvUTF8_on(sv); | |
fc36a67e | 7604 | return; |
7605 | } | |
7606 | /* See comment on '_' below */ | |
7607 | break; | |
7608 | } | |
46fc3d4c | 7609 | } |
7610 | ||
7611 | patend = (char*)pat + patlen; | |
7612 | for (p = (char*)pat; p < patend; p = q) { | |
7613 | bool alt = FALSE; | |
7614 | bool left = FALSE; | |
b22c7a20 | 7615 | bool vectorize = FALSE; |
211dfcf1 | 7616 | bool vectorarg = FALSE; |
b2e23cf9 | 7617 | bool vec_utf = FALSE; |
46fc3d4c | 7618 | char fill = ' '; |
7619 | char plus = 0; | |
7620 | char intsize = 0; | |
7621 | STRLEN width = 0; | |
fc36a67e | 7622 | STRLEN zeros = 0; |
46fc3d4c | 7623 | bool has_precis = FALSE; |
7624 | STRLEN precis = 0; | |
7e2040f0 | 7625 | bool is_utf = FALSE; |
eb3fce90 | 7626 | |
46fc3d4c | 7627 | char esignbuf[4]; |
ad391ad9 | 7628 | U8 utf8buf[UTF8_MAXLEN+1]; |
46fc3d4c | 7629 | STRLEN esignlen = 0; |
7630 | ||
7631 | char *eptr = Nullch; | |
fc36a67e | 7632 | STRLEN elen = 0; |
089c015b JH |
7633 | /* Times 4: a decimal digit takes more than 3 binary digits. |
7634 | * NV_DIG: mantissa takes than many decimal digits. | |
7635 | * Plus 32: Playing safe. */ | |
7636 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
2d4389e4 JH |
7637 | /* large enough for "%#.#f" --chip */ |
7638 | /* what about long double NVs? --jhi */ | |
b22c7a20 GS |
7639 | |
7640 | SV *vecsv; | |
a05b299f | 7641 | U8 *vecstr = Null(U8*); |
b22c7a20 | 7642 | STRLEN veclen = 0; |
46fc3d4c | 7643 | char c; |
7644 | int i; | |
9c5ffd7c | 7645 | unsigned base = 0; |
46fc3d4c | 7646 | IV iv; |
7647 | UV uv; | |
65202027 | 7648 | NV nv; |
46fc3d4c | 7649 | STRLEN have; |
7650 | STRLEN need; | |
7651 | STRLEN gap; | |
b22c7a20 GS |
7652 | char *dotstr = "."; |
7653 | STRLEN dotstrlen = 1; | |
211dfcf1 | 7654 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 7655 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
7656 | I32 epix = 0; /* explicit precision index */ |
7657 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 7658 | bool asterisk = FALSE; |
46fc3d4c | 7659 | |
211dfcf1 | 7660 | /* echo everything up to the next format specification */ |
46fc3d4c | 7661 | for (q = p; q < patend && *q != '%'; ++q) ; |
7662 | if (q > p) { | |
7663 | sv_catpvn(sv, p, q - p); | |
7664 | p = q; | |
7665 | } | |
7666 | if (q++ >= patend) | |
7667 | break; | |
7668 | ||
211dfcf1 HS |
7669 | /* |
7670 | We allow format specification elements in this order: | |
7671 | \d+\$ explicit format parameter index | |
7672 | [-+ 0#]+ flags | |
7673 | \*?(\d+\$)?v vector with optional (optionally specified) arg | |
7674 | \d+|\*(\d+\$)? width using optional (optionally specified) arg | |
7675 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
7676 | [hlqLV] size | |
7677 | [%bcdefginopsux_DFOUX] format (mandatory) | |
7678 | */ | |
7679 | if (EXPECT_NUMBER(q, width)) { | |
7680 | if (*q == '$') { | |
7681 | ++q; | |
7682 | efix = width; | |
7683 | } else { | |
7684 | goto gotwidth; | |
7685 | } | |
7686 | } | |
7687 | ||
fc36a67e | 7688 | /* FLAGS */ |
7689 | ||
46fc3d4c | 7690 | while (*q) { |
7691 | switch (*q) { | |
7692 | case ' ': | |
7693 | case '+': | |
7694 | plus = *q++; | |
7695 | continue; | |
7696 | ||
7697 | case '-': | |
7698 | left = TRUE; | |
7699 | q++; | |
7700 | continue; | |
7701 | ||
7702 | case '0': | |
7703 | fill = *q++; | |
7704 | continue; | |
7705 | ||
7706 | case '#': | |
7707 | alt = TRUE; | |
7708 | q++; | |
7709 | continue; | |
7710 | ||
fc36a67e | 7711 | default: |
7712 | break; | |
7713 | } | |
7714 | break; | |
7715 | } | |
46fc3d4c | 7716 | |
211dfcf1 | 7717 | tryasterisk: |
eb3fce90 | 7718 | if (*q == '*') { |
211dfcf1 HS |
7719 | q++; |
7720 | if (EXPECT_NUMBER(q, ewix)) | |
7721 | if (*q++ != '$') | |
7722 | goto unknown; | |
eb3fce90 | 7723 | asterisk = TRUE; |
211dfcf1 HS |
7724 | } |
7725 | if (*q == 'v') { | |
eb3fce90 | 7726 | q++; |
211dfcf1 HS |
7727 | if (vectorize) |
7728 | goto unknown; | |
9cbac4c7 | 7729 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
7730 | evix = ewix; |
7731 | ewix = 0; | |
7732 | asterisk = FALSE; | |
7733 | } | |
7734 | vectorize = TRUE; | |
7735 | goto tryasterisk; | |
eb3fce90 JH |
7736 | } |
7737 | ||
211dfcf1 HS |
7738 | if (!asterisk) |
7739 | EXPECT_NUMBER(q, width); | |
7740 | ||
7741 | if (vectorize) { | |
7742 | if (vectorarg) { | |
7743 | if (args) | |
7744 | vecsv = va_arg(*args, SV*); | |
7745 | else | |
7746 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
7747 | svargs[ewix ? ewix-1 : svix++] : &PL_sv_undef; | |
4459522c | 7748 | dotstr = SvPVx(vecsv, dotstrlen); |
211dfcf1 HS |
7749 | if (DO_UTF8(vecsv)) |
7750 | is_utf = TRUE; | |
7751 | } | |
7752 | if (args) { | |
7753 | vecsv = va_arg(*args, SV*); | |
7754 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
b2e23cf9 | 7755 | vec_utf = DO_UTF8(vecsv); |
eb3fce90 | 7756 | } |
211dfcf1 HS |
7757 | else if (efix ? efix <= svmax : svix < svmax) { |
7758 | vecsv = svargs[efix ? efix-1 : svix++]; | |
7759 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
b2e23cf9 | 7760 | vec_utf = DO_UTF8(vecsv); |
211dfcf1 HS |
7761 | } |
7762 | else { | |
7763 | vecstr = (U8*)""; | |
7764 | veclen = 0; | |
7765 | } | |
eb3fce90 | 7766 | } |
fc36a67e | 7767 | |
eb3fce90 | 7768 | if (asterisk) { |
fc36a67e | 7769 | if (args) |
7770 | i = va_arg(*args, int); | |
7771 | else | |
eb3fce90 JH |
7772 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
7773 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7774 | left |= (i < 0); |
7775 | width = (i < 0) ? -i : i; | |
fc36a67e | 7776 | } |
211dfcf1 | 7777 | gotwidth: |
fc36a67e | 7778 | |
7779 | /* PRECISION */ | |
46fc3d4c | 7780 | |
fc36a67e | 7781 | if (*q == '.') { |
7782 | q++; | |
7783 | if (*q == '*') { | |
211dfcf1 HS |
7784 | q++; |
7785 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') | |
7786 | goto unknown; | |
46fc3d4c | 7787 | if (args) |
7788 | i = va_arg(*args, int); | |
7789 | else | |
eb3fce90 JH |
7790 | i = (ewix ? ewix <= svmax : svix < svmax) |
7791 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7792 | precis = (i < 0) ? 0 : i; |
fc36a67e | 7793 | } |
7794 | else { | |
7795 | precis = 0; | |
7796 | while (isDIGIT(*q)) | |
7797 | precis = precis * 10 + (*q++ - '0'); | |
7798 | } | |
7799 | has_precis = TRUE; | |
7800 | } | |
46fc3d4c | 7801 | |
fc36a67e | 7802 | /* SIZE */ |
46fc3d4c | 7803 | |
fc36a67e | 7804 | switch (*q) { |
e5c81feb | 7805 | #if defined(HAS_QUAD) || (defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)) |
6f9bb7fd | 7806 | case 'L': /* Ld */ |
e5c81feb JH |
7807 | /* FALL THROUGH */ |
7808 | #endif | |
7809 | #ifdef HAS_QUAD | |
6f9bb7fd GS |
7810 | case 'q': /* qd */ |
7811 | intsize = 'q'; | |
7812 | q++; | |
7813 | break; | |
7814 | #endif | |
fc36a67e | 7815 | case 'l': |
e5c81feb JH |
7816 | #if defined(HAS_QUAD) || (defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)) |
7817 | if (*(q + 1) == 'l') { /* lld, llf */ | |
fc36a67e | 7818 | intsize = 'q'; |
7819 | q += 2; | |
46fc3d4c | 7820 | break; |
cf2093f6 | 7821 | } |
fc36a67e | 7822 | #endif |
6f9bb7fd | 7823 | /* FALL THROUGH */ |
fc36a67e | 7824 | case 'h': |
cf2093f6 | 7825 | /* FALL THROUGH */ |
fc36a67e | 7826 | case 'V': |
7827 | intsize = *q++; | |
46fc3d4c | 7828 | break; |
7829 | } | |
7830 | ||
fc36a67e | 7831 | /* CONVERSION */ |
7832 | ||
211dfcf1 HS |
7833 | if (*q == '%') { |
7834 | eptr = q++; | |
7835 | elen = 1; | |
7836 | goto string; | |
7837 | } | |
7838 | ||
7839 | if (!args) | |
7840 | argsv = (efix ? efix <= svmax : svix < svmax) ? | |
7841 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
7842 | ||
46fc3d4c | 7843 | switch (c = *q++) { |
7844 | ||
7845 | /* STRINGS */ | |
7846 | ||
46fc3d4c | 7847 | case 'c': |
211dfcf1 | 7848 | uv = args ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
7849 | if ((uv > 255 || |
7850 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 7851 | && !IN_BYTES) { |
dfe13c55 | 7852 | eptr = (char*)utf8buf; |
9041c2e3 | 7853 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
7e2040f0 GS |
7854 | is_utf = TRUE; |
7855 | } | |
7856 | else { | |
7857 | c = (char)uv; | |
7858 | eptr = &c; | |
7859 | elen = 1; | |
a0ed51b3 | 7860 | } |
46fc3d4c | 7861 | goto string; |
7862 | ||
46fc3d4c | 7863 | case 's': |
7864 | if (args) { | |
fc36a67e | 7865 | eptr = va_arg(*args, char*); |
c635e13b | 7866 | if (eptr) |
1d7c1841 GS |
7867 | #ifdef MACOS_TRADITIONAL |
7868 | /* On MacOS, %#s format is used for Pascal strings */ | |
7869 | if (alt) | |
7870 | elen = *eptr++; | |
7871 | else | |
7872 | #endif | |
c635e13b | 7873 | elen = strlen(eptr); |
7874 | else { | |
7875 | eptr = nullstr; | |
7876 | elen = sizeof nullstr - 1; | |
7877 | } | |
46fc3d4c | 7878 | } |
211dfcf1 | 7879 | else { |
7e2040f0 GS |
7880 | eptr = SvPVx(argsv, elen); |
7881 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
7882 | if (has_precis && precis < elen) { |
7883 | I32 p = precis; | |
7e2040f0 | 7884 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
7885 | precis = p; |
7886 | } | |
7887 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 7888 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 7889 | } |
7e2040f0 | 7890 | is_utf = TRUE; |
a0ed51b3 LW |
7891 | } |
7892 | } | |
46fc3d4c | 7893 | goto string; |
7894 | ||
fc36a67e | 7895 | case '_': |
7896 | /* | |
7897 | * The "%_" hack might have to be changed someday, | |
7898 | * if ISO or ANSI decide to use '_' for something. | |
7899 | * So we keep it hidden from users' code. | |
7900 | */ | |
7901 | if (!args) | |
7902 | goto unknown; | |
211dfcf1 | 7903 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
7904 | eptr = SvPVx(argsv, elen); |
7905 | if (DO_UTF8(argsv)) | |
7906 | is_utf = TRUE; | |
fc36a67e | 7907 | |
46fc3d4c | 7908 | string: |
b22c7a20 | 7909 | vectorize = FALSE; |
46fc3d4c | 7910 | if (has_precis && elen > precis) |
7911 | elen = precis; | |
7912 | break; | |
7913 | ||
7914 | /* INTEGERS */ | |
7915 | ||
fc36a67e | 7916 | case 'p': |
c2e66d9e GS |
7917 | if (alt) |
7918 | goto unknown; | |
211dfcf1 | 7919 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 7920 | base = 16; |
7921 | goto integer; | |
7922 | ||
46fc3d4c | 7923 | case 'D': |
29fe7a80 | 7924 | #ifdef IV_IS_QUAD |
22f3ae8c | 7925 | intsize = 'q'; |
29fe7a80 | 7926 | #else |
46fc3d4c | 7927 | intsize = 'l'; |
29fe7a80 | 7928 | #endif |
46fc3d4c | 7929 | /* FALL THROUGH */ |
7930 | case 'd': | |
7931 | case 'i': | |
b22c7a20 | 7932 | if (vectorize) { |
ba210ebe | 7933 | STRLEN ulen; |
211dfcf1 HS |
7934 | if (!veclen) |
7935 | continue; | |
b2e23cf9 | 7936 | if (vec_utf) |
9041c2e3 | 7937 | iv = (IV)utf8n_to_uvchr(vecstr, veclen, &ulen, 0); |
b22c7a20 | 7938 | else { |
a05b299f | 7939 | iv = *vecstr; |
b22c7a20 GS |
7940 | ulen = 1; |
7941 | } | |
7942 | vecstr += ulen; | |
7943 | veclen -= ulen; | |
7944 | } | |
7945 | else if (args) { | |
46fc3d4c | 7946 | switch (intsize) { |
7947 | case 'h': iv = (short)va_arg(*args, int); break; | |
7948 | default: iv = va_arg(*args, int); break; | |
7949 | case 'l': iv = va_arg(*args, long); break; | |
fc36a67e | 7950 | case 'V': iv = va_arg(*args, IV); break; |
cf2093f6 JH |
7951 | #ifdef HAS_QUAD |
7952 | case 'q': iv = va_arg(*args, Quad_t); break; | |
7953 | #endif | |
46fc3d4c | 7954 | } |
7955 | } | |
7956 | else { | |
211dfcf1 | 7957 | iv = SvIVx(argsv); |
46fc3d4c | 7958 | switch (intsize) { |
7959 | case 'h': iv = (short)iv; break; | |
be28567c | 7960 | default: break; |
46fc3d4c | 7961 | case 'l': iv = (long)iv; break; |
fc36a67e | 7962 | case 'V': break; |
cf2093f6 JH |
7963 | #ifdef HAS_QUAD |
7964 | case 'q': iv = (Quad_t)iv; break; | |
7965 | #endif | |
46fc3d4c | 7966 | } |
7967 | } | |
7968 | if (iv >= 0) { | |
7969 | uv = iv; | |
7970 | if (plus) | |
7971 | esignbuf[esignlen++] = plus; | |
7972 | } | |
7973 | else { | |
7974 | uv = -iv; | |
7975 | esignbuf[esignlen++] = '-'; | |
7976 | } | |
7977 | base = 10; | |
7978 | goto integer; | |
7979 | ||
fc36a67e | 7980 | case 'U': |
29fe7a80 | 7981 | #ifdef IV_IS_QUAD |
22f3ae8c | 7982 | intsize = 'q'; |
29fe7a80 | 7983 | #else |
fc36a67e | 7984 | intsize = 'l'; |
29fe7a80 | 7985 | #endif |
fc36a67e | 7986 | /* FALL THROUGH */ |
7987 | case 'u': | |
7988 | base = 10; | |
7989 | goto uns_integer; | |
7990 | ||
4f19785b WSI |
7991 | case 'b': |
7992 | base = 2; | |
7993 | goto uns_integer; | |
7994 | ||
46fc3d4c | 7995 | case 'O': |
29fe7a80 | 7996 | #ifdef IV_IS_QUAD |
22f3ae8c | 7997 | intsize = 'q'; |
29fe7a80 | 7998 | #else |
46fc3d4c | 7999 | intsize = 'l'; |
29fe7a80 | 8000 | #endif |
46fc3d4c | 8001 | /* FALL THROUGH */ |
8002 | case 'o': | |
8003 | base = 8; | |
8004 | goto uns_integer; | |
8005 | ||
8006 | case 'X': | |
46fc3d4c | 8007 | case 'x': |
8008 | base = 16; | |
46fc3d4c | 8009 | |
8010 | uns_integer: | |
b22c7a20 | 8011 | if (vectorize) { |
ba210ebe | 8012 | STRLEN ulen; |
b22c7a20 | 8013 | vector: |
211dfcf1 HS |
8014 | if (!veclen) |
8015 | continue; | |
b2e23cf9 | 8016 | if (vec_utf) |
9041c2e3 | 8017 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, 0); |
b22c7a20 | 8018 | else { |
a05b299f | 8019 | uv = *vecstr; |
b22c7a20 GS |
8020 | ulen = 1; |
8021 | } | |
8022 | vecstr += ulen; | |
8023 | veclen -= ulen; | |
8024 | } | |
8025 | else if (args) { | |
46fc3d4c | 8026 | switch (intsize) { |
8027 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
8028 | default: uv = va_arg(*args, unsigned); break; | |
8029 | case 'l': uv = va_arg(*args, unsigned long); break; | |
fc36a67e | 8030 | case 'V': uv = va_arg(*args, UV); break; |
cf2093f6 JH |
8031 | #ifdef HAS_QUAD |
8032 | case 'q': uv = va_arg(*args, Quad_t); break; | |
8033 | #endif | |
46fc3d4c | 8034 | } |
8035 | } | |
8036 | else { | |
211dfcf1 | 8037 | uv = SvUVx(argsv); |
46fc3d4c | 8038 | switch (intsize) { |
8039 | case 'h': uv = (unsigned short)uv; break; | |
be28567c | 8040 | default: break; |
46fc3d4c | 8041 | case 'l': uv = (unsigned long)uv; break; |
fc36a67e | 8042 | case 'V': break; |
cf2093f6 JH |
8043 | #ifdef HAS_QUAD |
8044 | case 'q': uv = (Quad_t)uv; break; | |
8045 | #endif | |
46fc3d4c | 8046 | } |
8047 | } | |
8048 | ||
8049 | integer: | |
46fc3d4c | 8050 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 8051 | switch (base) { |
8052 | unsigned dig; | |
8053 | case 16: | |
c10ed8b9 HS |
8054 | if (!uv) |
8055 | alt = FALSE; | |
1d7c1841 GS |
8056 | p = (char*)((c == 'X') |
8057 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 8058 | do { |
8059 | dig = uv & 15; | |
8060 | *--eptr = p[dig]; | |
8061 | } while (uv >>= 4); | |
8062 | if (alt) { | |
46fc3d4c | 8063 | esignbuf[esignlen++] = '0'; |
fc36a67e | 8064 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 8065 | } |
fc36a67e | 8066 | break; |
8067 | case 8: | |
8068 | do { | |
8069 | dig = uv & 7; | |
8070 | *--eptr = '0' + dig; | |
8071 | } while (uv >>= 3); | |
8072 | if (alt && *eptr != '0') | |
8073 | *--eptr = '0'; | |
8074 | break; | |
4f19785b WSI |
8075 | case 2: |
8076 | do { | |
8077 | dig = uv & 1; | |
8078 | *--eptr = '0' + dig; | |
8079 | } while (uv >>= 1); | |
eda88b6d JH |
8080 | if (alt) { |
8081 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 8082 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 8083 | } |
4f19785b | 8084 | break; |
fc36a67e | 8085 | default: /* it had better be ten or less */ |
6bc102ca | 8086 | #if defined(PERL_Y2KWARN) |
e476b1b5 | 8087 | if (ckWARN(WARN_Y2K)) { |
6bc102ca GS |
8088 | STRLEN n; |
8089 | char *s = SvPV(sv,n); | |
8090 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
8091 | && (n == 2 || !isDIGIT(s[n-3]))) | |
8092 | { | |
e476b1b5 | 8093 | Perl_warner(aTHX_ WARN_Y2K, |
6bc102ca GS |
8094 | "Possible Y2K bug: %%%c %s", |
8095 | c, "format string following '19'"); | |
8096 | } | |
8097 | } | |
8098 | #endif | |
fc36a67e | 8099 | do { |
8100 | dig = uv % base; | |
8101 | *--eptr = '0' + dig; | |
8102 | } while (uv /= base); | |
8103 | break; | |
46fc3d4c | 8104 | } |
8105 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
8106 | if (has_precis) { |
8107 | if (precis > elen) | |
8108 | zeros = precis - elen; | |
8109 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
8110 | elen = 0; | |
8111 | } | |
46fc3d4c | 8112 | break; |
8113 | ||
8114 | /* FLOATING POINT */ | |
8115 | ||
fc36a67e | 8116 | case 'F': |
8117 | c = 'f'; /* maybe %F isn't supported here */ | |
8118 | /* FALL THROUGH */ | |
46fc3d4c | 8119 | case 'e': case 'E': |
fc36a67e | 8120 | case 'f': |
46fc3d4c | 8121 | case 'g': case 'G': |
8122 | ||
8123 | /* This is evil, but floating point is even more evil */ | |
8124 | ||
b22c7a20 | 8125 | vectorize = FALSE; |
211dfcf1 | 8126 | nv = args ? va_arg(*args, NV) : SvNVx(argsv); |
fc36a67e | 8127 | |
8128 | need = 0; | |
8129 | if (c != 'e' && c != 'E') { | |
8130 | i = PERL_INT_MIN; | |
73b309ea | 8131 | (void)Perl_frexp(nv, &i); |
fc36a67e | 8132 | if (i == PERL_INT_MIN) |
cea2e8a9 | 8133 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 8134 | if (i > 0) |
fc36a67e | 8135 | need = BIT_DIGITS(i); |
8136 | } | |
8137 | need += has_precis ? precis : 6; /* known default */ | |
8138 | if (need < width) | |
8139 | need = width; | |
8140 | ||
46fc3d4c | 8141 | need += 20; /* fudge factor */ |
80252599 GS |
8142 | if (PL_efloatsize < need) { |
8143 | Safefree(PL_efloatbuf); | |
8144 | PL_efloatsize = need + 20; /* more fudge */ | |
8145 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 8146 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 8147 | } |
8148 | ||
8149 | eptr = ebuf + sizeof ebuf; | |
8150 | *--eptr = '\0'; | |
8151 | *--eptr = c; | |
e5c81feb | 8152 | #if defined(USE_LONG_DOUBLE) && defined(PERL_PRIfldbl) |
cf2093f6 | 8153 | { |
e5c81feb JH |
8154 | /* Copy the one or more characters in a long double |
8155 | * format before the 'base' ([efgEFG]) character to | |
8156 | * the format string. */ | |
8157 | static char const prifldbl[] = PERL_PRIfldbl; | |
8158 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
8159 | while (p >= prifldbl) { *--eptr = *p--; } | |
cf2093f6 | 8160 | } |
65202027 | 8161 | #endif |
46fc3d4c | 8162 | if (has_precis) { |
8163 | base = precis; | |
8164 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8165 | *--eptr = '.'; | |
8166 | } | |
8167 | if (width) { | |
8168 | base = width; | |
8169 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8170 | } | |
8171 | if (fill == '0') | |
8172 | *--eptr = fill; | |
84902520 TB |
8173 | if (left) |
8174 | *--eptr = '-'; | |
46fc3d4c | 8175 | if (plus) |
8176 | *--eptr = plus; | |
8177 | if (alt) | |
8178 | *--eptr = '#'; | |
8179 | *--eptr = '%'; | |
8180 | ||
ff9121f8 JH |
8181 | /* No taint. Otherwise we are in the strange situation |
8182 | * where printf() taints but print($float) doesn't. | |
bda0f7a5 | 8183 | * --jhi */ |
dd8482fc | 8184 | (void)sprintf(PL_efloatbuf, eptr, nv); |
8af02333 | 8185 | |
80252599 GS |
8186 | eptr = PL_efloatbuf; |
8187 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 8188 | break; |
8189 | ||
fc36a67e | 8190 | /* SPECIAL */ |
8191 | ||
8192 | case 'n': | |
b22c7a20 | 8193 | vectorize = FALSE; |
fc36a67e | 8194 | i = SvCUR(sv) - origlen; |
8195 | if (args) { | |
c635e13b | 8196 | switch (intsize) { |
8197 | case 'h': *(va_arg(*args, short*)) = i; break; | |
8198 | default: *(va_arg(*args, int*)) = i; break; | |
8199 | case 'l': *(va_arg(*args, long*)) = i; break; | |
8200 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
8201 | #ifdef HAS_QUAD |
8202 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
8203 | #endif | |
c635e13b | 8204 | } |
fc36a67e | 8205 | } |
9dd79c3f | 8206 | else |
211dfcf1 | 8207 | sv_setuv_mg(argsv, (UV)i); |
fc36a67e | 8208 | continue; /* not "break" */ |
8209 | ||
8210 | /* UNKNOWN */ | |
8211 | ||
46fc3d4c | 8212 | default: |
fc36a67e | 8213 | unknown: |
b22c7a20 | 8214 | vectorize = FALSE; |
599cee73 | 8215 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 8216 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 8217 | SV *msg = sv_newmortal(); |
cea2e8a9 | 8218 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ", |
533c011a | 8219 | (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); |
0f4b6630 | 8220 | if (c) { |
0f4b6630 | 8221 | if (isPRINT(c)) |
1c846c1f | 8222 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
8223 | "\"%%%c\"", c & 0xFF); |
8224 | else | |
8225 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 8226 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 8227 | (UV)c & 0xFF); |
0f4b6630 | 8228 | } else |
c635e13b | 8229 | sv_catpv(msg, "end of string"); |
894356b3 | 8230 | Perl_warner(aTHX_ WARN_PRINTF, "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 8231 | } |
fb73857a | 8232 | |
8233 | /* output mangled stuff ... */ | |
8234 | if (c == '\0') | |
8235 | --q; | |
46fc3d4c | 8236 | eptr = p; |
8237 | elen = q - p; | |
fb73857a | 8238 | |
8239 | /* ... right here, because formatting flags should not apply */ | |
8240 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8241 | p = SvEND(sv); | |
4459522c | 8242 | Copy(eptr, p, elen, char); |
fb73857a | 8243 | p += elen; |
8244 | *p = '\0'; | |
8245 | SvCUR(sv) = p - SvPVX(sv); | |
8246 | continue; /* not "break" */ | |
46fc3d4c | 8247 | } |
8248 | ||
fc36a67e | 8249 | have = esignlen + zeros + elen; |
46fc3d4c | 8250 | need = (have > width ? have : width); |
8251 | gap = need - have; | |
8252 | ||
b22c7a20 | 8253 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 8254 | p = SvEND(sv); |
8255 | if (esignlen && fill == '0') { | |
8256 | for (i = 0; i < esignlen; i++) | |
8257 | *p++ = esignbuf[i]; | |
8258 | } | |
8259 | if (gap && !left) { | |
8260 | memset(p, fill, gap); | |
8261 | p += gap; | |
8262 | } | |
8263 | if (esignlen && fill != '0') { | |
8264 | for (i = 0; i < esignlen; i++) | |
8265 | *p++ = esignbuf[i]; | |
8266 | } | |
fc36a67e | 8267 | if (zeros) { |
8268 | for (i = zeros; i; i--) | |
8269 | *p++ = '0'; | |
8270 | } | |
46fc3d4c | 8271 | if (elen) { |
4459522c | 8272 | Copy(eptr, p, elen, char); |
46fc3d4c | 8273 | p += elen; |
8274 | } | |
8275 | if (gap && left) { | |
8276 | memset(p, ' ', gap); | |
8277 | p += gap; | |
8278 | } | |
b22c7a20 GS |
8279 | if (vectorize) { |
8280 | if (veclen) { | |
4459522c | 8281 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
8282 | p += dotstrlen; |
8283 | } | |
8284 | else | |
8285 | vectorize = FALSE; /* done iterating over vecstr */ | |
8286 | } | |
7e2040f0 GS |
8287 | if (is_utf) |
8288 | SvUTF8_on(sv); | |
46fc3d4c | 8289 | *p = '\0'; |
8290 | SvCUR(sv) = p - SvPVX(sv); | |
b22c7a20 GS |
8291 | if (vectorize) { |
8292 | esignlen = 0; | |
8293 | goto vector; | |
8294 | } | |
46fc3d4c | 8295 | } |
8296 | } | |
51371543 | 8297 | |
645c22ef DM |
8298 | /* ========================================================================= |
8299 | ||
8300 | =head1 Cloning an interpreter | |
8301 | ||
8302 | All the macros and functions in this section are for the private use of | |
8303 | the main function, perl_clone(). | |
8304 | ||
8305 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
8306 | During the course of a cloning, a hash table is used to map old addresses | |
8307 | to new addresses. The table is created and manipulated with the | |
8308 | ptr_table_* functions. | |
8309 | ||
8310 | =cut | |
8311 | ||
8312 | ============================================================================*/ | |
8313 | ||
8314 | ||
1d7c1841 GS |
8315 | #if defined(USE_ITHREADS) |
8316 | ||
8317 | #if defined(USE_THREADS) | |
8318 | # include "error: USE_THREADS and USE_ITHREADS are incompatible" | |
8319 | #endif | |
8320 | ||
1d7c1841 GS |
8321 | #ifndef GpREFCNT_inc |
8322 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
8323 | #endif | |
8324 | ||
8325 | ||
d2d73c3e AB |
8326 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
8327 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
8328 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8329 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
8330 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8331 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
8332 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8333 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
8334 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8335 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
8336 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
8337 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
8338 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
d2d73c3e AB |
8339 | |
8340 | ||
1d7c1841 | 8341 | |
645c22ef DM |
8342 | /* duplicate a regexp */ |
8343 | ||
1d7c1841 GS |
8344 | REGEXP * |
8345 | Perl_re_dup(pTHX_ REGEXP *r) | |
8346 | { | |
8347 | /* XXX fix when pmop->op_pmregexp becomes shared */ | |
8348 | return ReREFCNT_inc(r); | |
8349 | } | |
8350 | ||
d2d73c3e | 8351 | /* duplicate a file handle */ |
645c22ef | 8352 | |
1d7c1841 GS |
8353 | PerlIO * |
8354 | Perl_fp_dup(pTHX_ PerlIO *fp, char type) | |
8355 | { | |
8356 | PerlIO *ret; | |
8357 | if (!fp) | |
8358 | return (PerlIO*)NULL; | |
8359 | ||
8360 | /* look for it in the table first */ | |
8361 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
8362 | if (ret) | |
8363 | return ret; | |
8364 | ||
8365 | /* create anew and remember what it is */ | |
5f1a76d0 | 8366 | ret = PerlIO_fdupopen(aTHX_ fp); |
1d7c1841 GS |
8367 | ptr_table_store(PL_ptr_table, fp, ret); |
8368 | return ret; | |
8369 | } | |
8370 | ||
645c22ef DM |
8371 | /* duplicate a directory handle */ |
8372 | ||
1d7c1841 GS |
8373 | DIR * |
8374 | Perl_dirp_dup(pTHX_ DIR *dp) | |
8375 | { | |
8376 | if (!dp) | |
8377 | return (DIR*)NULL; | |
8378 | /* XXX TODO */ | |
8379 | return dp; | |
8380 | } | |
8381 | ||
ff276b08 | 8382 | /* duplicate a typeglob */ |
645c22ef | 8383 | |
1d7c1841 | 8384 | GP * |
d2d73c3e | 8385 | Perl_gp_dup(pTHX_ GP *gp, clone_params* param) |
1d7c1841 GS |
8386 | { |
8387 | GP *ret; | |
8388 | if (!gp) | |
8389 | return (GP*)NULL; | |
8390 | /* look for it in the table first */ | |
8391 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
8392 | if (ret) | |
8393 | return ret; | |
8394 | ||
8395 | /* create anew and remember what it is */ | |
8396 | Newz(0, ret, 1, GP); | |
8397 | ptr_table_store(PL_ptr_table, gp, ret); | |
8398 | ||
8399 | /* clone */ | |
8400 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
8401 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
8402 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
8403 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
8404 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
8405 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
8406 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
8407 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
8408 | ret->gp_cvgen = gp->gp_cvgen; |
8409 | ret->gp_flags = gp->gp_flags; | |
8410 | ret->gp_line = gp->gp_line; | |
8411 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
8412 | return ret; | |
8413 | } | |
8414 | ||
645c22ef DM |
8415 | /* duplicate a chain of magic */ |
8416 | ||
1d7c1841 | 8417 | MAGIC * |
d2d73c3e | 8418 | Perl_mg_dup(pTHX_ MAGIC *mg, clone_params* param) |
1d7c1841 | 8419 | { |
cb359b41 JH |
8420 | MAGIC *mgprev = (MAGIC*)NULL; |
8421 | MAGIC *mgret; | |
1d7c1841 GS |
8422 | if (!mg) |
8423 | return (MAGIC*)NULL; | |
8424 | /* look for it in the table first */ | |
8425 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
8426 | if (mgret) | |
8427 | return mgret; | |
8428 | ||
8429 | for (; mg; mg = mg->mg_moremagic) { | |
8430 | MAGIC *nmg; | |
8431 | Newz(0, nmg, 1, MAGIC); | |
cb359b41 | 8432 | if (mgprev) |
1d7c1841 | 8433 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
8434 | else |
8435 | mgret = nmg; | |
1d7c1841 GS |
8436 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
8437 | nmg->mg_private = mg->mg_private; | |
8438 | nmg->mg_type = mg->mg_type; | |
8439 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 8440 | if (mg->mg_type == PERL_MAGIC_qr) { |
1d7c1841 GS |
8441 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj); |
8442 | } | |
8443 | else { | |
8444 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
8445 | ? sv_dup_inc(mg->mg_obj, param) |
8446 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
8447 | } |
8448 | nmg->mg_len = mg->mg_len; | |
8449 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 8450 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
1d7c1841 GS |
8451 | if (mg->mg_len >= 0) { |
8452 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); | |
14befaf4 DM |
8453 | if (mg->mg_type == PERL_MAGIC_overload_table && |
8454 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
8455 | { | |
1d7c1841 GS |
8456 | AMT *amtp = (AMT*)mg->mg_ptr; |
8457 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
8458 | I32 i; | |
8459 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 8460 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
8461 | } |
8462 | } | |
8463 | } | |
8464 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 8465 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 GS |
8466 | } |
8467 | mgprev = nmg; | |
8468 | } | |
8469 | return mgret; | |
8470 | } | |
8471 | ||
645c22ef DM |
8472 | /* create a new pointer-mapping table */ |
8473 | ||
1d7c1841 GS |
8474 | PTR_TBL_t * |
8475 | Perl_ptr_table_new(pTHX) | |
8476 | { | |
8477 | PTR_TBL_t *tbl; | |
8478 | Newz(0, tbl, 1, PTR_TBL_t); | |
8479 | tbl->tbl_max = 511; | |
8480 | tbl->tbl_items = 0; | |
8481 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
8482 | return tbl; | |
8483 | } | |
8484 | ||
645c22ef DM |
8485 | /* map an existing pointer using a table */ |
8486 | ||
1d7c1841 GS |
8487 | void * |
8488 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
8489 | { | |
8490 | PTR_TBL_ENT_t *tblent; | |
d2a79402 | 8491 | UV hash = PTR2UV(sv); |
1d7c1841 GS |
8492 | assert(tbl); |
8493 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
8494 | for (; tblent; tblent = tblent->next) { | |
8495 | if (tblent->oldval == sv) | |
8496 | return tblent->newval; | |
8497 | } | |
8498 | return (void*)NULL; | |
8499 | } | |
8500 | ||
645c22ef DM |
8501 | /* add a new entry to a pointer-mapping table */ |
8502 | ||
1d7c1841 GS |
8503 | void |
8504 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
8505 | { | |
8506 | PTR_TBL_ENT_t *tblent, **otblent; | |
8507 | /* XXX this may be pessimal on platforms where pointers aren't good | |
8508 | * hash values e.g. if they grow faster in the most significant | |
8509 | * bits */ | |
d2a79402 | 8510 | UV hash = PTR2UV(oldv); |
1d7c1841 GS |
8511 | bool i = 1; |
8512 | ||
8513 | assert(tbl); | |
8514 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
8515 | for (tblent = *otblent; tblent; i=0, tblent = tblent->next) { | |
8516 | if (tblent->oldval == oldv) { | |
8517 | tblent->newval = newv; | |
8518 | tbl->tbl_items++; | |
8519 | return; | |
8520 | } | |
8521 | } | |
8522 | Newz(0, tblent, 1, PTR_TBL_ENT_t); | |
8523 | tblent->oldval = oldv; | |
8524 | tblent->newval = newv; | |
8525 | tblent->next = *otblent; | |
8526 | *otblent = tblent; | |
8527 | tbl->tbl_items++; | |
8528 | if (i && tbl->tbl_items > tbl->tbl_max) | |
8529 | ptr_table_split(tbl); | |
8530 | } | |
8531 | ||
645c22ef DM |
8532 | /* double the hash bucket size of an existing ptr table */ |
8533 | ||
1d7c1841 GS |
8534 | void |
8535 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
8536 | { | |
8537 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
8538 | UV oldsize = tbl->tbl_max + 1; | |
8539 | UV newsize = oldsize * 2; | |
8540 | UV i; | |
8541 | ||
8542 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
8543 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
8544 | tbl->tbl_max = --newsize; | |
8545 | tbl->tbl_ary = ary; | |
8546 | for (i=0; i < oldsize; i++, ary++) { | |
8547 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
8548 | if (!*ary) | |
8549 | continue; | |
8550 | curentp = ary + oldsize; | |
8551 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
d2a79402 | 8552 | if ((newsize & PTR2UV(ent->oldval)) != i) { |
1d7c1841 GS |
8553 | *entp = ent->next; |
8554 | ent->next = *curentp; | |
8555 | *curentp = ent; | |
8556 | continue; | |
8557 | } | |
8558 | else | |
8559 | entp = &ent->next; | |
8560 | } | |
8561 | } | |
8562 | } | |
8563 | ||
645c22ef DM |
8564 | /* remove all the entries from a ptr table */ |
8565 | ||
a0739874 DM |
8566 | void |
8567 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
8568 | { | |
8569 | register PTR_TBL_ENT_t **array; | |
8570 | register PTR_TBL_ENT_t *entry; | |
8571 | register PTR_TBL_ENT_t *oentry = Null(PTR_TBL_ENT_t*); | |
8572 | UV riter = 0; | |
8573 | UV max; | |
8574 | ||
8575 | if (!tbl || !tbl->tbl_items) { | |
8576 | return; | |
8577 | } | |
8578 | ||
8579 | array = tbl->tbl_ary; | |
8580 | entry = array[0]; | |
8581 | max = tbl->tbl_max; | |
8582 | ||
8583 | for (;;) { | |
8584 | if (entry) { | |
8585 | oentry = entry; | |
8586 | entry = entry->next; | |
8587 | Safefree(oentry); | |
8588 | } | |
8589 | if (!entry) { | |
8590 | if (++riter > max) { | |
8591 | break; | |
8592 | } | |
8593 | entry = array[riter]; | |
8594 | } | |
8595 | } | |
8596 | ||
8597 | tbl->tbl_items = 0; | |
8598 | } | |
8599 | ||
645c22ef DM |
8600 | /* clear and free a ptr table */ |
8601 | ||
a0739874 DM |
8602 | void |
8603 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
8604 | { | |
8605 | if (!tbl) { | |
8606 | return; | |
8607 | } | |
8608 | ptr_table_clear(tbl); | |
8609 | Safefree(tbl->tbl_ary); | |
8610 | Safefree(tbl); | |
8611 | } | |
8612 | ||
1d7c1841 GS |
8613 | #ifdef DEBUGGING |
8614 | char *PL_watch_pvx; | |
8615 | #endif | |
8616 | ||
645c22ef DM |
8617 | /* attempt to make everything in the typeglob readonly */ |
8618 | ||
5bd07a3d DM |
8619 | STATIC SV * |
8620 | S_gv_share(pTHX_ SV *sstr) | |
8621 | { | |
8622 | GV *gv = (GV*)sstr; | |
8623 | SV *sv = &PL_sv_no; /* just need SvREADONLY-ness */ | |
8624 | ||
8625 | if (GvIO(gv) || GvFORM(gv)) { | |
8626 | GvSHARED_off(gv); /* GvIOs cannot be shared. nor can GvFORMs */ | |
8627 | } | |
8628 | else if (!GvCV(gv)) { | |
8629 | GvCV(gv) = (CV*)sv; | |
8630 | } | |
8631 | else { | |
8632 | /* CvPADLISTs cannot be shared */ | |
8633 | if (!CvXSUB(GvCV(gv))) { | |
8634 | GvSHARED_off(gv); | |
8635 | } | |
8636 | } | |
8637 | ||
8638 | if (!GvSHARED(gv)) { | |
8639 | #if 0 | |
8640 | PerlIO_printf(Perl_debug_log, "gv_share: unable to share %s::%s\n", | |
8641 | HvNAME(GvSTASH(gv)), GvNAME(gv)); | |
8642 | #endif | |
8643 | return Nullsv; | |
8644 | } | |
8645 | ||
4411f3b6 | 8646 | /* |
5bd07a3d DM |
8647 | * write attempts will die with |
8648 | * "Modification of a read-only value attempted" | |
8649 | */ | |
8650 | if (!GvSV(gv)) { | |
8651 | GvSV(gv) = sv; | |
8652 | } | |
8653 | else { | |
8654 | SvREADONLY_on(GvSV(gv)); | |
8655 | } | |
8656 | ||
8657 | if (!GvAV(gv)) { | |
8658 | GvAV(gv) = (AV*)sv; | |
8659 | } | |
8660 | else { | |
8661 | SvREADONLY_on(GvAV(gv)); | |
8662 | } | |
8663 | ||
8664 | if (!GvHV(gv)) { | |
8665 | GvHV(gv) = (HV*)sv; | |
8666 | } | |
8667 | else { | |
8668 | SvREADONLY_on(GvAV(gv)); | |
8669 | } | |
8670 | ||
8671 | return sstr; /* he_dup() will SvREFCNT_inc() */ | |
8672 | } | |
8673 | ||
645c22ef DM |
8674 | /* duplicate an SV of any type (including AV, HV etc) */ |
8675 | ||
1d7c1841 | 8676 | SV * |
d2d73c3e | 8677 | Perl_sv_dup(pTHX_ SV *sstr, clone_params* param) |
1d7c1841 | 8678 | { |
1d7c1841 GS |
8679 | SV *dstr; |
8680 | ||
8681 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
8682 | return Nullsv; | |
8683 | /* look for it in the table first */ | |
8684 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
8685 | if (dstr) | |
8686 | return dstr; | |
8687 | ||
8688 | /* create anew and remember what it is */ | |
8689 | new_SV(dstr); | |
8690 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
8691 | ||
8692 | /* clone */ | |
8693 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
8694 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
8695 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
8696 | ||
8697 | #ifdef DEBUGGING | |
8698 | if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) | |
8699 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", | |
8700 | PL_watch_pvx, SvPVX(sstr)); | |
8701 | #endif | |
8702 | ||
8703 | switch (SvTYPE(sstr)) { | |
8704 | case SVt_NULL: | |
8705 | SvANY(dstr) = NULL; | |
8706 | break; | |
8707 | case SVt_IV: | |
8708 | SvANY(dstr) = new_XIV(); | |
8709 | SvIVX(dstr) = SvIVX(sstr); | |
8710 | break; | |
8711 | case SVt_NV: | |
8712 | SvANY(dstr) = new_XNV(); | |
8713 | SvNVX(dstr) = SvNVX(sstr); | |
8714 | break; | |
8715 | case SVt_RV: | |
8716 | SvANY(dstr) = new_XRV(); | |
89cd1aa3 | 8717 | SvRV(dstr) = SvRV(sstr) && SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8718 | ? sv_dup(SvRV(sstr), param) |
8719 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8720 | break; |
8721 | case SVt_PV: | |
8722 | SvANY(dstr) = new_XPV(); | |
8723 | SvCUR(dstr) = SvCUR(sstr); | |
8724 | SvLEN(dstr) = SvLEN(sstr); | |
8725 | if (SvROK(sstr)) | |
ce4ad881 | 8726 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8727 | ? sv_dup(SvRV(sstr), param) |
8728 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8729 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8730 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8731 | else | |
8732 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8733 | break; | |
8734 | case SVt_PVIV: | |
8735 | SvANY(dstr) = new_XPVIV(); | |
8736 | SvCUR(dstr) = SvCUR(sstr); | |
8737 | SvLEN(dstr) = SvLEN(sstr); | |
8738 | SvIVX(dstr) = SvIVX(sstr); | |
8739 | if (SvROK(sstr)) | |
ce4ad881 | 8740 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8741 | ? sv_dup(SvRV(sstr), param) |
8742 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8743 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8744 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8745 | else | |
8746 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8747 | break; | |
8748 | case SVt_PVNV: | |
8749 | SvANY(dstr) = new_XPVNV(); | |
8750 | SvCUR(dstr) = SvCUR(sstr); | |
8751 | SvLEN(dstr) = SvLEN(sstr); | |
8752 | SvIVX(dstr) = SvIVX(sstr); | |
8753 | SvNVX(dstr) = SvNVX(sstr); | |
8754 | if (SvROK(sstr)) | |
ce4ad881 | 8755 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8756 | ? sv_dup(SvRV(sstr), param) |
8757 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8758 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8759 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8760 | else | |
8761 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8762 | break; | |
8763 | case SVt_PVMG: | |
8764 | SvANY(dstr) = new_XPVMG(); | |
8765 | SvCUR(dstr) = SvCUR(sstr); | |
8766 | SvLEN(dstr) = SvLEN(sstr); | |
8767 | SvIVX(dstr) = SvIVX(sstr); | |
8768 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8769 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8770 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8771 | if (SvROK(sstr)) |
ce4ad881 | 8772 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8773 | ? sv_dup(SvRV(sstr), param) |
8774 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8775 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8776 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8777 | else | |
8778 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8779 | break; | |
8780 | case SVt_PVBM: | |
8781 | SvANY(dstr) = new_XPVBM(); | |
8782 | SvCUR(dstr) = SvCUR(sstr); | |
8783 | SvLEN(dstr) = SvLEN(sstr); | |
8784 | SvIVX(dstr) = SvIVX(sstr); | |
8785 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8786 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8787 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8788 | if (SvROK(sstr)) |
ce4ad881 | 8789 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8790 | ? sv_dup(SvRV(sstr), param) |
8791 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8792 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8793 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8794 | else | |
8795 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8796 | BmRARE(dstr) = BmRARE(sstr); | |
8797 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
8798 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
8799 | break; | |
8800 | case SVt_PVLV: | |
8801 | SvANY(dstr) = new_XPVLV(); | |
8802 | SvCUR(dstr) = SvCUR(sstr); | |
8803 | SvLEN(dstr) = SvLEN(sstr); | |
8804 | SvIVX(dstr) = SvIVX(sstr); | |
8805 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8806 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8807 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8808 | if (SvROK(sstr)) |
ce4ad881 | 8809 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8810 | ? sv_dup(SvRV(sstr), param) |
8811 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8812 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8813 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8814 | else | |
8815 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8816 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ | |
8817 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
d2d73c3e | 8818 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); |
1d7c1841 GS |
8819 | LvTYPE(dstr) = LvTYPE(sstr); |
8820 | break; | |
8821 | case SVt_PVGV: | |
5bd07a3d DM |
8822 | if (GvSHARED((GV*)sstr)) { |
8823 | SV *share; | |
8824 | if ((share = gv_share(sstr))) { | |
8825 | del_SV(dstr); | |
8826 | dstr = share; | |
8827 | #if 0 | |
8828 | PerlIO_printf(Perl_debug_log, "sv_dup: sharing %s::%s\n", | |
8829 | HvNAME(GvSTASH(share)), GvNAME(share)); | |
8830 | #endif | |
8831 | break; | |
8832 | } | |
8833 | } | |
1d7c1841 GS |
8834 | SvANY(dstr) = new_XPVGV(); |
8835 | SvCUR(dstr) = SvCUR(sstr); | |
8836 | SvLEN(dstr) = SvLEN(sstr); | |
8837 | SvIVX(dstr) = SvIVX(sstr); | |
8838 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8839 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8840 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8841 | if (SvROK(sstr)) |
ce4ad881 | 8842 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8843 | ? sv_dup(SvRV(sstr), param) |
8844 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8845 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8846 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8847 | else | |
8848 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8849 | GvNAMELEN(dstr) = GvNAMELEN(sstr); | |
8850 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 8851 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 8852 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 8853 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
8854 | (void)GpREFCNT_inc(GvGP(dstr)); |
8855 | break; | |
8856 | case SVt_PVIO: | |
8857 | SvANY(dstr) = new_XPVIO(); | |
8858 | SvCUR(dstr) = SvCUR(sstr); | |
8859 | SvLEN(dstr) = SvLEN(sstr); | |
8860 | SvIVX(dstr) = SvIVX(sstr); | |
8861 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8862 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8863 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8864 | if (SvROK(sstr)) |
ce4ad881 | 8865 | SvRV(dstr) = SvWEAKREF(SvRV(sstr)) |
d2d73c3e AB |
8866 | ? sv_dup(SvRV(sstr), param) |
8867 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8868 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8869 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8870 | else | |
8871 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8872 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr)); | |
8873 | if (IoOFP(sstr) == IoIFP(sstr)) | |
8874 | IoOFP(dstr) = IoIFP(dstr); | |
8875 | else | |
8876 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr)); | |
8877 | /* PL_rsfp_filters entries have fake IoDIRP() */ | |
8878 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
8879 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
8880 | else | |
8881 | IoDIRP(dstr) = IoDIRP(sstr); | |
8882 | IoLINES(dstr) = IoLINES(sstr); | |
8883 | IoPAGE(dstr) = IoPAGE(sstr); | |
8884 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
8885 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
8886 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); | |
d2d73c3e | 8887 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); |
1d7c1841 | 8888 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
d2d73c3e | 8889 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); |
1d7c1841 | 8890 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
d2d73c3e | 8891 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); |
1d7c1841 GS |
8892 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
8893 | IoTYPE(dstr) = IoTYPE(sstr); | |
8894 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
8895 | break; | |
8896 | case SVt_PVAV: | |
8897 | SvANY(dstr) = new_XPVAV(); | |
8898 | SvCUR(dstr) = SvCUR(sstr); | |
8899 | SvLEN(dstr) = SvLEN(sstr); | |
8900 | SvIVX(dstr) = SvIVX(sstr); | |
8901 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8902 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8903 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
8904 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); | |
1d7c1841 GS |
8905 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
8906 | if (AvARRAY((AV*)sstr)) { | |
8907 | SV **dst_ary, **src_ary; | |
8908 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
8909 | ||
8910 | src_ary = AvARRAY((AV*)sstr); | |
8911 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
8912 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
8913 | SvPVX(dstr) = (char*)dst_ary; | |
8914 | AvALLOC((AV*)dstr) = dst_ary; | |
8915 | if (AvREAL((AV*)sstr)) { | |
8916 | while (items-- > 0) | |
d2d73c3e | 8917 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
8918 | } |
8919 | else { | |
8920 | while (items-- > 0) | |
d2d73c3e | 8921 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
8922 | } |
8923 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
8924 | while (items-- > 0) { | |
8925 | *dst_ary++ = &PL_sv_undef; | |
8926 | } | |
8927 | } | |
8928 | else { | |
8929 | SvPVX(dstr) = Nullch; | |
8930 | AvALLOC((AV*)dstr) = (SV**)NULL; | |
8931 | } | |
8932 | break; | |
8933 | case SVt_PVHV: | |
8934 | SvANY(dstr) = new_XPVHV(); | |
8935 | SvCUR(dstr) = SvCUR(sstr); | |
8936 | SvLEN(dstr) = SvLEN(sstr); | |
8937 | SvIVX(dstr) = SvIVX(sstr); | |
8938 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8939 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8940 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
8941 | HvRITER((HV*)dstr) = HvRITER((HV*)sstr); |
8942 | if (HvARRAY((HV*)sstr)) { | |
1d7c1841 GS |
8943 | STRLEN i = 0; |
8944 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
8945 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
8946 | Newz(0, dxhv->xhv_array, | |
8947 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); | |
8948 | while (i <= sxhv->xhv_max) { | |
8949 | ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], | |
d2d73c3e | 8950 | !!HvSHAREKEYS(sstr), param); |
1d7c1841 GS |
8951 | ++i; |
8952 | } | |
d2d73c3e | 8953 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, !!HvSHAREKEYS(sstr), param); |
1d7c1841 GS |
8954 | } |
8955 | else { | |
8956 | SvPVX(dstr) = Nullch; | |
8957 | HvEITER((HV*)dstr) = (HE*)NULL; | |
8958 | } | |
8959 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
8960 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
c43294b8 | 8961 | /* Record stashes for possible cloning in Perl_clone(). */ |
6676db26 | 8962 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 8963 | av_push(param->stashes, dstr); |
1d7c1841 GS |
8964 | break; |
8965 | case SVt_PVFM: | |
8966 | SvANY(dstr) = new_XPVFM(); | |
8967 | FmLINES(dstr) = FmLINES(sstr); | |
8968 | goto dup_pvcv; | |
8969 | /* NOTREACHED */ | |
8970 | case SVt_PVCV: | |
8971 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 8972 | dup_pvcv: |
1d7c1841 GS |
8973 | SvCUR(dstr) = SvCUR(sstr); |
8974 | SvLEN(dstr) = SvLEN(sstr); | |
8975 | SvIVX(dstr) = SvIVX(sstr); | |
8976 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8977 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8978 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
8979 | if (SvPVX(sstr) && SvLEN(sstr)) |
8980 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8981 | else | |
8982 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
d2d73c3e | 8983 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 GS |
8984 | CvSTART(dstr) = CvSTART(sstr); |
8985 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); | |
8986 | CvXSUB(dstr) = CvXSUB(sstr); | |
8987 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
d2d73c3e AB |
8988 | CvGV(dstr) = gv_dup(CvGV(sstr), param); |
8989 | if (param->flags & CLONEf_COPY_STACKS) { | |
8990 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
8991 | } else { | |
8992 | CvDEPTH(dstr) = 0; | |
8993 | } | |
1d7c1841 GS |
8994 | if (CvPADLIST(sstr) && !AvREAL(CvPADLIST(sstr))) { |
8995 | /* XXX padlists are real, but pretend to be not */ | |
8996 | AvREAL_on(CvPADLIST(sstr)); | |
d2d73c3e | 8997 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
1d7c1841 GS |
8998 | AvREAL_off(CvPADLIST(sstr)); |
8999 | AvREAL_off(CvPADLIST(dstr)); | |
9000 | } | |
9001 | else | |
d2d73c3e | 9002 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
282f25c9 | 9003 | if (!CvANON(sstr) || CvCLONED(sstr)) |
d2d73c3e | 9004 | CvOUTSIDE(dstr) = cv_dup_inc(CvOUTSIDE(sstr), param); |
282f25c9 | 9005 | else |
d2d73c3e | 9006 | CvOUTSIDE(dstr) = cv_dup(CvOUTSIDE(sstr), param); |
1d7c1841 | 9007 | CvFLAGS(dstr) = CvFLAGS(sstr); |
54356c7d | 9008 | CvFILE(dstr) = CvXSUB(sstr) ? CvFILE(sstr) : SAVEPV(CvFILE(sstr)); |
1d7c1841 GS |
9009 | break; |
9010 | default: | |
9011 | Perl_croak(aTHX_ "Bizarre SvTYPE [%d]", SvTYPE(sstr)); | |
9012 | break; | |
9013 | } | |
9014 | ||
9015 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
9016 | ++PL_sv_objcount; | |
9017 | ||
9018 | return dstr; | |
d2d73c3e | 9019 | } |
1d7c1841 | 9020 | |
645c22ef DM |
9021 | /* duplicate a context */ |
9022 | ||
1d7c1841 | 9023 | PERL_CONTEXT * |
d2d73c3e | 9024 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, clone_params* param) |
1d7c1841 GS |
9025 | { |
9026 | PERL_CONTEXT *ncxs; | |
9027 | ||
9028 | if (!cxs) | |
9029 | return (PERL_CONTEXT*)NULL; | |
9030 | ||
9031 | /* look for it in the table first */ | |
9032 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
9033 | if (ncxs) | |
9034 | return ncxs; | |
9035 | ||
9036 | /* create anew and remember what it is */ | |
9037 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
9038 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
9039 | ||
9040 | while (ix >= 0) { | |
9041 | PERL_CONTEXT *cx = &cxs[ix]; | |
9042 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
9043 | ncx->cx_type = cx->cx_type; | |
9044 | if (CxTYPE(cx) == CXt_SUBST) { | |
9045 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
9046 | } | |
9047 | else { | |
9048 | ncx->blk_oldsp = cx->blk_oldsp; | |
9049 | ncx->blk_oldcop = cx->blk_oldcop; | |
9050 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
9051 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
9052 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
9053 | ncx->blk_oldpm = cx->blk_oldpm; | |
9054 | ncx->blk_gimme = cx->blk_gimme; | |
9055 | switch (CxTYPE(cx)) { | |
9056 | case CXt_SUB: | |
9057 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
9058 | ? cv_dup_inc(cx->blk_sub.cv, param) |
9059 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 9060 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 9061 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 9062 | : Nullav); |
d2d73c3e | 9063 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
9064 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
9065 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
9066 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
9067 | break; | |
9068 | case CXt_EVAL: | |
9069 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
9070 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
d2d73c3e | 9071 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param);; |
1d7c1841 | 9072 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 9073 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
1d7c1841 GS |
9074 | break; |
9075 | case CXt_LOOP: | |
9076 | ncx->blk_loop.label = cx->blk_loop.label; | |
9077 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
9078 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
9079 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
9080 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
9081 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
9082 | ? cx->blk_loop.iterdata | |
d2d73c3e | 9083 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
a4b82a6f GS |
9084 | ncx->blk_loop.oldcurpad |
9085 | = (SV**)ptr_table_fetch(PL_ptr_table, | |
9086 | cx->blk_loop.oldcurpad); | |
d2d73c3e AB |
9087 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
9088 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
9089 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
9090 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
9091 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
9092 | break; | |
9093 | case CXt_FORMAT: | |
d2d73c3e AB |
9094 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
9095 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
9096 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 GS |
9097 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
9098 | break; | |
9099 | case CXt_BLOCK: | |
9100 | case CXt_NULL: | |
9101 | break; | |
9102 | } | |
9103 | } | |
9104 | --ix; | |
9105 | } | |
9106 | return ncxs; | |
9107 | } | |
9108 | ||
645c22ef DM |
9109 | /* duplicate a stack info structure */ |
9110 | ||
1d7c1841 | 9111 | PERL_SI * |
d2d73c3e | 9112 | Perl_si_dup(pTHX_ PERL_SI *si, clone_params* param) |
1d7c1841 GS |
9113 | { |
9114 | PERL_SI *nsi; | |
9115 | ||
9116 | if (!si) | |
9117 | return (PERL_SI*)NULL; | |
9118 | ||
9119 | /* look for it in the table first */ | |
9120 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
9121 | if (nsi) | |
9122 | return nsi; | |
9123 | ||
9124 | /* create anew and remember what it is */ | |
9125 | Newz(56, nsi, 1, PERL_SI); | |
9126 | ptr_table_store(PL_ptr_table, si, nsi); | |
9127 | ||
d2d73c3e | 9128 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
9129 | nsi->si_cxix = si->si_cxix; |
9130 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 9131 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 9132 | nsi->si_type = si->si_type; |
d2d73c3e AB |
9133 | nsi->si_prev = si_dup(si->si_prev, param); |
9134 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
9135 | nsi->si_markoff = si->si_markoff; |
9136 | ||
9137 | return nsi; | |
9138 | } | |
9139 | ||
9140 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
9141 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
9142 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
9143 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
9144 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
9145 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
9146 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) | |
9147 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
9148 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
9149 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
9150 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
9151 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
9152 | ||
9153 | /* XXXXX todo */ | |
9154 | #define pv_dup_inc(p) SAVEPV(p) | |
9155 | #define pv_dup(p) SAVEPV(p) | |
9156 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
9157 | ||
645c22ef DM |
9158 | /* map any object to the new equivent - either something in the |
9159 | * ptr table, or something in the interpreter structure | |
9160 | */ | |
9161 | ||
1d7c1841 GS |
9162 | void * |
9163 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
9164 | { | |
9165 | void *ret; | |
9166 | ||
9167 | if (!v) | |
9168 | return (void*)NULL; | |
9169 | ||
9170 | /* look for it in the table first */ | |
9171 | ret = ptr_table_fetch(PL_ptr_table, v); | |
9172 | if (ret) | |
9173 | return ret; | |
9174 | ||
9175 | /* see if it is part of the interpreter structure */ | |
9176 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
9177 | ret = (void*)(((char*)aTHXo) + (((char*)v) - (char*)proto_perl)); | |
9178 | else | |
9179 | ret = v; | |
9180 | ||
9181 | return ret; | |
9182 | } | |
9183 | ||
645c22ef DM |
9184 | /* duplicate the save stack */ |
9185 | ||
1d7c1841 | 9186 | ANY * |
d2d73c3e | 9187 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, clone_params* param) |
1d7c1841 GS |
9188 | { |
9189 | ANY *ss = proto_perl->Tsavestack; | |
9190 | I32 ix = proto_perl->Tsavestack_ix; | |
9191 | I32 max = proto_perl->Tsavestack_max; | |
9192 | ANY *nss; | |
9193 | SV *sv; | |
9194 | GV *gv; | |
9195 | AV *av; | |
9196 | HV *hv; | |
9197 | void* ptr; | |
9198 | int intval; | |
9199 | long longval; | |
9200 | GP *gp; | |
9201 | IV iv; | |
9202 | I32 i; | |
9203 | char *c; | |
9204 | void (*dptr) (void*); | |
9205 | void (*dxptr) (pTHXo_ void*); | |
e977893f | 9206 | OP *o; |
1d7c1841 GS |
9207 | |
9208 | Newz(54, nss, max, ANY); | |
9209 | ||
9210 | while (ix > 0) { | |
9211 | i = POPINT(ss,ix); | |
9212 | TOPINT(nss,ix) = i; | |
9213 | switch (i) { | |
9214 | case SAVEt_ITEM: /* normal string */ | |
9215 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9216 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9217 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9218 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9219 | break; |
9220 | case SAVEt_SV: /* scalar reference */ | |
9221 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9222 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9223 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9224 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 9225 | break; |
f4dd75d9 GS |
9226 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
9227 | c = (char*)POPPTR(ss,ix); | |
9228 | TOPPTR(nss,ix) = pv_dup(c); | |
9229 | ptr = POPPTR(ss,ix); | |
9230 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9231 | break; | |
1d7c1841 GS |
9232 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
9233 | case SAVEt_SVREF: /* scalar reference */ | |
9234 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9235 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9236 | ptr = POPPTR(ss,ix); |
9237 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
9238 | break; | |
9239 | case SAVEt_AV: /* array reference */ | |
9240 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9241 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 9242 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9243 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9244 | break; |
9245 | case SAVEt_HV: /* hash reference */ | |
9246 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9247 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 9248 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9249 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9250 | break; |
9251 | case SAVEt_INT: /* int reference */ | |
9252 | ptr = POPPTR(ss,ix); | |
9253 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9254 | intval = (int)POPINT(ss,ix); | |
9255 | TOPINT(nss,ix) = intval; | |
9256 | break; | |
9257 | case SAVEt_LONG: /* long reference */ | |
9258 | ptr = POPPTR(ss,ix); | |
9259 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9260 | longval = (long)POPLONG(ss,ix); | |
9261 | TOPLONG(nss,ix) = longval; | |
9262 | break; | |
9263 | case SAVEt_I32: /* I32 reference */ | |
9264 | case SAVEt_I16: /* I16 reference */ | |
9265 | case SAVEt_I8: /* I8 reference */ | |
9266 | ptr = POPPTR(ss,ix); | |
9267 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9268 | i = POPINT(ss,ix); | |
9269 | TOPINT(nss,ix) = i; | |
9270 | break; | |
9271 | case SAVEt_IV: /* IV reference */ | |
9272 | ptr = POPPTR(ss,ix); | |
9273 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9274 | iv = POPIV(ss,ix); | |
9275 | TOPIV(nss,ix) = iv; | |
9276 | break; | |
9277 | case SAVEt_SPTR: /* SV* reference */ | |
9278 | ptr = POPPTR(ss,ix); | |
9279 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9280 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9281 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
9282 | break; |
9283 | case SAVEt_VPTR: /* random* reference */ | |
9284 | ptr = POPPTR(ss,ix); | |
9285 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9286 | ptr = POPPTR(ss,ix); | |
9287 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9288 | break; | |
9289 | case SAVEt_PPTR: /* char* reference */ | |
9290 | ptr = POPPTR(ss,ix); | |
9291 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9292 | c = (char*)POPPTR(ss,ix); | |
9293 | TOPPTR(nss,ix) = pv_dup(c); | |
9294 | break; | |
9295 | case SAVEt_HPTR: /* HV* reference */ | |
9296 | ptr = POPPTR(ss,ix); | |
9297 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9298 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9299 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
9300 | break; |
9301 | case SAVEt_APTR: /* AV* reference */ | |
9302 | ptr = POPPTR(ss,ix); | |
9303 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9304 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9305 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
9306 | break; |
9307 | case SAVEt_NSTAB: | |
9308 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 9309 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9310 | break; |
9311 | case SAVEt_GP: /* scalar reference */ | |
9312 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 9313 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
9314 | (void)GpREFCNT_inc(gp); |
9315 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 9316 | TOPPTR(nss,ix) = gv_dup_inc(c, param); |
1d7c1841 GS |
9317 | c = (char*)POPPTR(ss,ix); |
9318 | TOPPTR(nss,ix) = pv_dup(c); | |
9319 | iv = POPIV(ss,ix); | |
9320 | TOPIV(nss,ix) = iv; | |
9321 | iv = POPIV(ss,ix); | |
9322 | TOPIV(nss,ix) = iv; | |
9323 | break; | |
9324 | case SAVEt_FREESV: | |
26d9b02f | 9325 | case SAVEt_MORTALIZESV: |
1d7c1841 | 9326 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9327 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9328 | break; |
9329 | case SAVEt_FREEOP: | |
9330 | ptr = POPPTR(ss,ix); | |
9331 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
9332 | /* these are assumed to be refcounted properly */ | |
9333 | switch (((OP*)ptr)->op_type) { | |
9334 | case OP_LEAVESUB: | |
9335 | case OP_LEAVESUBLV: | |
9336 | case OP_LEAVEEVAL: | |
9337 | case OP_LEAVE: | |
9338 | case OP_SCOPE: | |
9339 | case OP_LEAVEWRITE: | |
e977893f GS |
9340 | TOPPTR(nss,ix) = ptr; |
9341 | o = (OP*)ptr; | |
9342 | OpREFCNT_inc(o); | |
1d7c1841 GS |
9343 | break; |
9344 | default: | |
9345 | TOPPTR(nss,ix) = Nullop; | |
9346 | break; | |
9347 | } | |
9348 | } | |
9349 | else | |
9350 | TOPPTR(nss,ix) = Nullop; | |
9351 | break; | |
9352 | case SAVEt_FREEPV: | |
9353 | c = (char*)POPPTR(ss,ix); | |
9354 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9355 | break; | |
9356 | case SAVEt_CLEARSV: | |
9357 | longval = POPLONG(ss,ix); | |
9358 | TOPLONG(nss,ix) = longval; | |
9359 | break; | |
9360 | case SAVEt_DELETE: | |
9361 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9362 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9363 | c = (char*)POPPTR(ss,ix); |
9364 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9365 | i = POPINT(ss,ix); | |
9366 | TOPINT(nss,ix) = i; | |
9367 | break; | |
9368 | case SAVEt_DESTRUCTOR: | |
9369 | ptr = POPPTR(ss,ix); | |
9370 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9371 | dptr = POPDPTR(ss,ix); | |
ef75a179 | 9372 | TOPDPTR(nss,ix) = (void (*)(void*))any_dup((void *)dptr, proto_perl); |
1d7c1841 GS |
9373 | break; |
9374 | case SAVEt_DESTRUCTOR_X: | |
9375 | ptr = POPPTR(ss,ix); | |
9376 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9377 | dxptr = POPDXPTR(ss,ix); | |
ef75a179 | 9378 | TOPDXPTR(nss,ix) = (void (*)(pTHXo_ void*))any_dup((void *)dxptr, proto_perl); |
1d7c1841 GS |
9379 | break; |
9380 | case SAVEt_REGCONTEXT: | |
9381 | case SAVEt_ALLOC: | |
9382 | i = POPINT(ss,ix); | |
9383 | TOPINT(nss,ix) = i; | |
9384 | ix -= i; | |
9385 | break; | |
9386 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
9387 | i = POPINT(ss,ix); | |
9388 | TOPINT(nss,ix) = i; | |
9389 | break; | |
9390 | case SAVEt_AELEM: /* array element */ | |
9391 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9392 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9393 | i = POPINT(ss,ix); |
9394 | TOPINT(nss,ix) = i; | |
9395 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9396 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
9397 | break; |
9398 | case SAVEt_HELEM: /* hash element */ | |
9399 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9400 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9401 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9402 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9403 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 9404 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9405 | break; |
9406 | case SAVEt_OP: | |
9407 | ptr = POPPTR(ss,ix); | |
9408 | TOPPTR(nss,ix) = ptr; | |
9409 | break; | |
9410 | case SAVEt_HINTS: | |
9411 | i = POPINT(ss,ix); | |
9412 | TOPINT(nss,ix) = i; | |
9413 | break; | |
c4410b1b GS |
9414 | case SAVEt_COMPPAD: |
9415 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9416 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 9417 | break; |
c3564e5c GS |
9418 | case SAVEt_PADSV: |
9419 | longval = (long)POPLONG(ss,ix); | |
9420 | TOPLONG(nss,ix) = longval; | |
9421 | ptr = POPPTR(ss,ix); | |
9422 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9423 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9424 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 9425 | break; |
1d7c1841 GS |
9426 | default: |
9427 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
9428 | } | |
9429 | } | |
9430 | ||
9431 | return nss; | |
9432 | } | |
9433 | ||
9434 | #ifdef PERL_OBJECT | |
9435 | #include "XSUB.h" | |
9436 | #endif | |
9437 | ||
645c22ef DM |
9438 | /* |
9439 | =for apidoc perl_clone | |
9440 | ||
9441 | Create and return a new interpreter by cloning the current one. | |
9442 | ||
9443 | =cut | |
9444 | */ | |
9445 | ||
9446 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
9447 | ||
1d7c1841 GS |
9448 | PerlInterpreter * |
9449 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
9450 | { | |
9451 | #ifdef PERL_OBJECT | |
9452 | CPerlObj *pPerl = (CPerlObj*)proto_perl; | |
9453 | #endif | |
9454 | ||
9455 | #ifdef PERL_IMPLICIT_SYS | |
c43294b8 AB |
9456 | |
9457 | /* perlhost.h so we need to call into it | |
9458 | to clone the host, CPerlHost should have a c interface, sky */ | |
9459 | ||
9460 | if (flags & CLONEf_CLONE_HOST) { | |
9461 | return perl_clone_host(proto_perl,flags); | |
9462 | } | |
9463 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
9464 | proto_perl->IMem, |
9465 | proto_perl->IMemShared, | |
9466 | proto_perl->IMemParse, | |
9467 | proto_perl->IEnv, | |
9468 | proto_perl->IStdIO, | |
9469 | proto_perl->ILIO, | |
9470 | proto_perl->IDir, | |
9471 | proto_perl->ISock, | |
9472 | proto_perl->IProc); | |
9473 | } | |
9474 | ||
9475 | PerlInterpreter * | |
9476 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
9477 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
9478 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
9479 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
9480 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
9481 | struct IPerlProc* ipP) | |
9482 | { | |
9483 | /* XXX many of the string copies here can be optimized if they're | |
9484 | * constants; they need to be allocated as common memory and just | |
9485 | * their pointers copied. */ | |
9486 | ||
9487 | IV i; | |
d2d73c3e | 9488 | clone_params* param = (clone_params*) malloc(sizeof(clone_params)); |
d2d73c3e AB |
9489 | |
9490 | ||
9491 | ||
1d7c1841 GS |
9492 | # ifdef PERL_OBJECT |
9493 | CPerlObj *pPerl = new(ipM) CPerlObj(ipM, ipMS, ipMP, ipE, ipStd, ipLIO, | |
9494 | ipD, ipS, ipP); | |
ba869deb | 9495 | PERL_SET_THX(pPerl); |
1d7c1841 GS |
9496 | # else /* !PERL_OBJECT */ |
9497 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); | |
ba869deb | 9498 | PERL_SET_THX(my_perl); |
1d7c1841 GS |
9499 | |
9500 | # ifdef DEBUGGING | |
9501 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); | |
9502 | PL_markstack = 0; | |
9503 | PL_scopestack = 0; | |
9504 | PL_savestack = 0; | |
9505 | PL_retstack = 0; | |
66fe0623 | 9506 | PL_sig_pending = 0; |
1d7c1841 GS |
9507 | # else /* !DEBUGGING */ |
9508 | Zero(my_perl, 1, PerlInterpreter); | |
9509 | # endif /* DEBUGGING */ | |
9510 | ||
9511 | /* host pointers */ | |
9512 | PL_Mem = ipM; | |
9513 | PL_MemShared = ipMS; | |
9514 | PL_MemParse = ipMP; | |
9515 | PL_Env = ipE; | |
9516 | PL_StdIO = ipStd; | |
9517 | PL_LIO = ipLIO; | |
9518 | PL_Dir = ipD; | |
9519 | PL_Sock = ipS; | |
9520 | PL_Proc = ipP; | |
9521 | # endif /* PERL_OBJECT */ | |
9522 | #else /* !PERL_IMPLICIT_SYS */ | |
9523 | IV i; | |
d2d73c3e | 9524 | clone_params* param = (clone_params*) malloc(sizeof(clone_params)); |
1d7c1841 | 9525 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 9526 | PERL_SET_THX(my_perl); |
1d7c1841 | 9527 | |
d2d73c3e AB |
9528 | |
9529 | ||
1d7c1841 GS |
9530 | # ifdef DEBUGGING |
9531 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); | |
9532 | PL_markstack = 0; | |
9533 | PL_scopestack = 0; | |
9534 | PL_savestack = 0; | |
9535 | PL_retstack = 0; | |
66fe0623 | 9536 | PL_sig_pending = 0; |
1d7c1841 GS |
9537 | # else /* !DEBUGGING */ |
9538 | Zero(my_perl, 1, PerlInterpreter); | |
9539 | # endif /* DEBUGGING */ | |
9540 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 9541 | param->flags = flags; |
1d7c1841 GS |
9542 | |
9543 | /* arena roots */ | |
9544 | PL_xiv_arenaroot = NULL; | |
9545 | PL_xiv_root = NULL; | |
612f20c3 | 9546 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 9547 | PL_xnv_root = NULL; |
612f20c3 | 9548 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 9549 | PL_xrv_root = NULL; |
612f20c3 | 9550 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 9551 | PL_xpv_root = NULL; |
612f20c3 | 9552 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 9553 | PL_xpviv_root = NULL; |
612f20c3 | 9554 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 9555 | PL_xpvnv_root = NULL; |
612f20c3 | 9556 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 9557 | PL_xpvcv_root = NULL; |
612f20c3 | 9558 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 9559 | PL_xpvav_root = NULL; |
612f20c3 | 9560 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 9561 | PL_xpvhv_root = NULL; |
612f20c3 | 9562 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 9563 | PL_xpvmg_root = NULL; |
612f20c3 | 9564 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 9565 | PL_xpvlv_root = NULL; |
612f20c3 | 9566 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 9567 | PL_xpvbm_root = NULL; |
612f20c3 | 9568 | PL_he_arenaroot = NULL; |
1d7c1841 GS |
9569 | PL_he_root = NULL; |
9570 | PL_nice_chunk = NULL; | |
9571 | PL_nice_chunk_size = 0; | |
9572 | PL_sv_count = 0; | |
9573 | PL_sv_objcount = 0; | |
9574 | PL_sv_root = Nullsv; | |
9575 | PL_sv_arenaroot = Nullsv; | |
9576 | ||
9577 | PL_debug = proto_perl->Idebug; | |
9578 | ||
9579 | /* create SV map for pointer relocation */ | |
9580 | PL_ptr_table = ptr_table_new(); | |
9581 | ||
9582 | /* initialize these special pointers as early as possible */ | |
9583 | SvANY(&PL_sv_undef) = NULL; | |
9584 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
9585 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
9586 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
9587 | ||
9588 | #ifdef PERL_OBJECT | |
9589 | SvUPGRADE(&PL_sv_no, SVt_PVNV); | |
9590 | #else | |
9591 | SvANY(&PL_sv_no) = new_XPVNV(); | |
9592 | #endif | |
9593 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
9594 | SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9595 | SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0); | |
9596 | SvCUR(&PL_sv_no) = 0; | |
9597 | SvLEN(&PL_sv_no) = 1; | |
9598 | SvNVX(&PL_sv_no) = 0; | |
9599 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); | |
9600 | ||
9601 | #ifdef PERL_OBJECT | |
9602 | SvUPGRADE(&PL_sv_yes, SVt_PVNV); | |
9603 | #else | |
9604 | SvANY(&PL_sv_yes) = new_XPVNV(); | |
9605 | #endif | |
9606 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
9607 | SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9608 | SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1); | |
9609 | SvCUR(&PL_sv_yes) = 1; | |
9610 | SvLEN(&PL_sv_yes) = 2; | |
9611 | SvNVX(&PL_sv_yes) = 1; | |
9612 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); | |
9613 | ||
9614 | /* create shared string table */ | |
9615 | PL_strtab = newHV(); | |
9616 | HvSHAREKEYS_off(PL_strtab); | |
9617 | hv_ksplit(PL_strtab, 512); | |
9618 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); | |
9619 | ||
9620 | PL_compiling = proto_perl->Icompiling; | |
9621 | PL_compiling.cop_stashpv = SAVEPV(PL_compiling.cop_stashpv); | |
9622 | PL_compiling.cop_file = SAVEPV(PL_compiling.cop_file); | |
9623 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); | |
9624 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 9625 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 9626 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 9627 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
9628 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
9629 | ||
9630 | /* pseudo environmental stuff */ | |
9631 | PL_origargc = proto_perl->Iorigargc; | |
9632 | i = PL_origargc; | |
9633 | New(0, PL_origargv, i+1, char*); | |
9634 | PL_origargv[i] = '\0'; | |
9635 | while (i-- > 0) { | |
9636 | PL_origargv[i] = SAVEPV(proto_perl->Iorigargv[i]); | |
9637 | } | |
d2d73c3e AB |
9638 | |
9639 | ||
9640 | param->stashes = newAV(); /* Setup array of objects to call clone on */ | |
9641 | ||
9642 | ||
9643 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
9644 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
9645 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 9646 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
9647 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
9648 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
9649 | |
9650 | /* switches */ | |
9651 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 9652 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
9653 | PL_localpatches = proto_perl->Ilocalpatches; |
9654 | PL_splitstr = proto_perl->Isplitstr; | |
9655 | PL_preprocess = proto_perl->Ipreprocess; | |
9656 | PL_minus_n = proto_perl->Iminus_n; | |
9657 | PL_minus_p = proto_perl->Iminus_p; | |
9658 | PL_minus_l = proto_perl->Iminus_l; | |
9659 | PL_minus_a = proto_perl->Iminus_a; | |
9660 | PL_minus_F = proto_perl->Iminus_F; | |
9661 | PL_doswitches = proto_perl->Idoswitches; | |
9662 | PL_dowarn = proto_perl->Idowarn; | |
9663 | PL_doextract = proto_perl->Idoextract; | |
9664 | PL_sawampersand = proto_perl->Isawampersand; | |
9665 | PL_unsafe = proto_perl->Iunsafe; | |
9666 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 9667 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
9668 | PL_perldb = proto_perl->Iperldb; |
9669 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
9670 | ||
9671 | /* magical thingies */ | |
9672 | /* XXX time(&PL_basetime) when asked for? */ | |
9673 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 9674 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
9675 | |
9676 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
9677 | PL_multiline = proto_perl->Imultiline; | |
9678 | PL_statusvalue = proto_perl->Istatusvalue; | |
9679 | #ifdef VMS | |
9680 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
9681 | #endif | |
9682 | ||
9683 | /* shortcuts to various I/O objects */ | |
d2d73c3e AB |
9684 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
9685 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
9686 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
9687 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
9688 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
9689 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
9690 | |
9691 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 9692 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
9693 | |
9694 | /* shortcuts to misc objects */ | |
d2d73c3e | 9695 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
9696 | |
9697 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
9698 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
9699 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
9700 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
9701 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
9702 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
9703 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
9704 | PL_lineary = av_dup(proto_perl->Ilineary, param); | |
9705 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
9706 | |
9707 | /* symbol tables */ | |
d2d73c3e AB |
9708 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
9709 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
9710 | PL_nullstash = hv_dup(proto_perl->Inullstash, param); | |
9711 | PL_debstash = hv_dup(proto_perl->Idebstash, param); | |
9712 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
9713 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
9714 | ||
9715 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
9716 | PL_endav = av_dup_inc(proto_perl->Iendav, param); | |
9717 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
9718 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
9719 | |
9720 | PL_sub_generation = proto_perl->Isub_generation; | |
9721 | ||
9722 | /* funky return mechanisms */ | |
9723 | PL_forkprocess = proto_perl->Iforkprocess; | |
9724 | ||
9725 | /* subprocess state */ | |
d2d73c3e | 9726 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
9727 | |
9728 | /* internal state */ | |
9729 | PL_tainting = proto_perl->Itainting; | |
9730 | PL_maxo = proto_perl->Imaxo; | |
9731 | if (proto_perl->Iop_mask) | |
9732 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
9733 | else | |
9734 | PL_op_mask = Nullch; | |
9735 | ||
9736 | /* current interpreter roots */ | |
d2d73c3e | 9737 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
9738 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
9739 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 9740 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
9741 | PL_eval_start = proto_perl->Ieval_start; |
9742 | ||
9743 | /* runtime control stuff */ | |
9744 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
9745 | PL_copline = proto_perl->Icopline; | |
9746 | ||
9747 | PL_filemode = proto_perl->Ifilemode; | |
9748 | PL_lastfd = proto_perl->Ilastfd; | |
9749 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
9750 | PL_Argv = NULL; | |
9751 | PL_Cmd = Nullch; | |
9752 | PL_gensym = proto_perl->Igensym; | |
9753 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 9754 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
9755 | PL_laststatval = proto_perl->Ilaststatval; |
9756 | PL_laststype = proto_perl->Ilaststype; | |
9757 | PL_mess_sv = Nullsv; | |
9758 | ||
d2d73c3e | 9759 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
9760 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
9761 | ||
9762 | /* interpreter atexit processing */ | |
9763 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
9764 | if (PL_exitlistlen) { | |
9765 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
9766 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
9767 | } | |
9768 | else | |
9769 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 9770 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
1d7c1841 GS |
9771 | |
9772 | PL_profiledata = NULL; | |
9773 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<'); | |
9774 | /* PL_rsfp_filters entries have fake IoDIRP() */ | |
d2d73c3e | 9775 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 9776 | |
d2d73c3e AB |
9777 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
9778 | PL_comppad = av_dup(proto_perl->Icomppad, param); | |
9779 | PL_comppad_name = av_dup(proto_perl->Icomppad_name, param); | |
1d7c1841 GS |
9780 | PL_comppad_name_fill = proto_perl->Icomppad_name_fill; |
9781 | PL_comppad_name_floor = proto_perl->Icomppad_name_floor; | |
9782 | PL_curpad = (SV**)ptr_table_fetch(PL_ptr_table, | |
9783 | proto_perl->Tcurpad); | |
9784 | ||
9785 | #ifdef HAVE_INTERP_INTERN | |
9786 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
9787 | #endif | |
9788 | ||
9789 | /* more statics moved here */ | |
9790 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 9791 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
9792 | |
9793 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
9794 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
9795 | ||
9796 | PL_uid = proto_perl->Iuid; | |
9797 | PL_euid = proto_perl->Ieuid; | |
9798 | PL_gid = proto_perl->Igid; | |
9799 | PL_egid = proto_perl->Iegid; | |
9800 | PL_nomemok = proto_perl->Inomemok; | |
9801 | PL_an = proto_perl->Ian; | |
9802 | PL_cop_seqmax = proto_perl->Icop_seqmax; | |
9803 | PL_op_seqmax = proto_perl->Iop_seqmax; | |
9804 | PL_evalseq = proto_perl->Ievalseq; | |
9805 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
9806 | PL_origalen = proto_perl->Iorigalen; | |
9807 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
9808 | PL_osname = SAVEPV(proto_perl->Iosname); | |
9809 | PL_sh_path = SAVEPV(proto_perl->Ish_path); | |
9810 | PL_sighandlerp = proto_perl->Isighandlerp; | |
9811 | ||
9812 | ||
9813 | PL_runops = proto_perl->Irunops; | |
9814 | ||
9815 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
9816 | ||
9817 | #ifdef CSH | |
9818 | PL_cshlen = proto_perl->Icshlen; | |
9819 | PL_cshname = SAVEPVN(proto_perl->Icshname, PL_cshlen); | |
9820 | #endif | |
9821 | ||
9822 | PL_lex_state = proto_perl->Ilex_state; | |
9823 | PL_lex_defer = proto_perl->Ilex_defer; | |
9824 | PL_lex_expect = proto_perl->Ilex_expect; | |
9825 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
9826 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
9827 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
9828 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
9829 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
9830 | PL_lex_op = proto_perl->Ilex_op; |
9831 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
9832 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
9833 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
9834 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
9835 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
9836 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
9837 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
9838 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
9839 | ||
9840 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
9841 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
9842 | PL_nexttoke = proto_perl->Inexttoke; | |
9843 | ||
d2d73c3e | 9844 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); |
1d7c1841 GS |
9845 | i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); |
9846 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9847 | i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); | |
9848 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9849 | i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); | |
9850 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9851 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
9852 | i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); | |
9853 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9854 | PL_pending_ident = proto_perl->Ipending_ident; | |
9855 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
9856 | ||
9857 | PL_expect = proto_perl->Iexpect; | |
9858 | ||
9859 | PL_multi_start = proto_perl->Imulti_start; | |
9860 | PL_multi_end = proto_perl->Imulti_end; | |
9861 | PL_multi_open = proto_perl->Imulti_open; | |
9862 | PL_multi_close = proto_perl->Imulti_close; | |
9863 | ||
9864 | PL_error_count = proto_perl->Ierror_count; | |
9865 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 9866 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 GS |
9867 | |
9868 | PL_min_intro_pending = proto_perl->Imin_intro_pending; | |
9869 | PL_max_intro_pending = proto_perl->Imax_intro_pending; | |
9870 | PL_padix = proto_perl->Ipadix; | |
9871 | PL_padix_floor = proto_perl->Ipadix_floor; | |
9872 | PL_pad_reset_pending = proto_perl->Ipad_reset_pending; | |
9873 | ||
9874 | i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); | |
9875 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9876 | i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); | |
9877 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9878 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
9879 | PL_in_my = proto_perl->Iin_my; | |
d2d73c3e | 9880 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
9881 | #ifdef FCRYPT |
9882 | PL_cryptseen = proto_perl->Icryptseen; | |
9883 | #endif | |
9884 | ||
9885 | PL_hints = proto_perl->Ihints; | |
9886 | ||
9887 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
9888 | ||
9889 | #ifdef USE_LOCALE_COLLATE | |
9890 | PL_collation_ix = proto_perl->Icollation_ix; | |
9891 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
9892 | PL_collation_standard = proto_perl->Icollation_standard; | |
9893 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
9894 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
9895 | #endif /* USE_LOCALE_COLLATE */ | |
9896 | ||
9897 | #ifdef USE_LOCALE_NUMERIC | |
9898 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
9899 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
9900 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 9901 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
9902 | #endif /* !USE_LOCALE_NUMERIC */ |
9903 | ||
9904 | /* utf8 character classes */ | |
d2d73c3e AB |
9905 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
9906 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
9907 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
9908 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
9909 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
9910 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
9911 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
9912 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
9913 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
9914 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
9915 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
9916 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
9917 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
9918 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
9919 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
9920 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
9921 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
1d7c1841 GS |
9922 | |
9923 | /* swatch cache */ | |
9924 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
9925 | PL_last_swash_klen = 0; | |
9926 | PL_last_swash_key[0]= '\0'; | |
9927 | PL_last_swash_tmps = (U8*)NULL; | |
9928 | PL_last_swash_slen = 0; | |
9929 | ||
9930 | /* perly.c globals */ | |
9931 | PL_yydebug = proto_perl->Iyydebug; | |
9932 | PL_yynerrs = proto_perl->Iyynerrs; | |
9933 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
9934 | PL_yychar = proto_perl->Iyychar; | |
9935 | PL_yyval = proto_perl->Iyyval; | |
9936 | PL_yylval = proto_perl->Iyylval; | |
9937 | ||
9938 | PL_glob_index = proto_perl->Iglob_index; | |
9939 | PL_srand_called = proto_perl->Isrand_called; | |
9940 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
9941 | PL_bitcount = Nullch; /* reinits on demand */ | |
9942 | ||
66fe0623 NIS |
9943 | if (proto_perl->Ipsig_pend) { |
9944 | Newz(0, PL_psig_pend, SIG_SIZE, int); | |
9dd79c3f | 9945 | } |
66fe0623 NIS |
9946 | else { |
9947 | PL_psig_pend = (int*)NULL; | |
9948 | } | |
9949 | ||
1d7c1841 | 9950 | if (proto_perl->Ipsig_ptr) { |
76d3c696 JH |
9951 | Newz(0, PL_psig_ptr, SIG_SIZE, SV*); |
9952 | Newz(0, PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 9953 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
9954 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
9955 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
9956 | } |
9957 | } | |
9958 | else { | |
9959 | PL_psig_ptr = (SV**)NULL; | |
9960 | PL_psig_name = (SV**)NULL; | |
9961 | } | |
9962 | ||
9963 | /* thrdvar.h stuff */ | |
9964 | ||
a0739874 | 9965 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
9966 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
9967 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
9968 | PL_tmps_max = proto_perl->Ttmps_max; | |
9969 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
9970 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
9971 | i = 0; | |
9972 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 9973 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
9974 | ++i; |
9975 | } | |
9976 | ||
9977 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
9978 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
9979 | Newz(54, PL_markstack, i, I32); | |
9980 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
9981 | - proto_perl->Tmarkstack); | |
9982 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
9983 | - proto_perl->Tmarkstack); | |
9984 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
9985 | PL_markstack_ptr - PL_markstack + 1, I32); | |
9986 | ||
9987 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
9988 | * NOTE: unlike the others! */ | |
9989 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
9990 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
9991 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
9992 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
9993 | ||
9994 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
9995 | * NOTE: unlike the others! */ | |
9996 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
9997 | PL_retstack_max = proto_perl->Tretstack_max; | |
9998 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
9999 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, I32); | |
10000 | ||
10001 | /* NOTE: si_dup() looks at PL_markstack */ | |
d2d73c3e | 10002 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
10003 | |
10004 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
10005 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
10006 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
10007 | |
10008 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
10009 | PL_stack_base = AvARRAY(PL_curstack); | |
10010 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
10011 | - proto_perl->Tstack_base); | |
10012 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
10013 | ||
10014 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
10015 | * NOTE: unlike the others! */ | |
10016 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
10017 | PL_savestack_max = proto_perl->Tsavestack_max; | |
10018 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
d2d73c3e | 10019 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
10020 | } |
10021 | else { | |
10022 | init_stacks(); | |
985e7056 | 10023 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
10024 | } |
10025 | ||
10026 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
10027 | PL_top_env = &PL_start_env; | |
10028 | ||
10029 | PL_op = proto_perl->Top; | |
10030 | ||
10031 | PL_Sv = Nullsv; | |
10032 | PL_Xpv = (XPV*)NULL; | |
10033 | PL_na = proto_perl->Tna; | |
10034 | ||
10035 | PL_statbuf = proto_perl->Tstatbuf; | |
10036 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
10037 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
10038 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
10039 | #ifdef HAS_TIMES |
10040 | PL_timesbuf = proto_perl->Ttimesbuf; | |
10041 | #endif | |
10042 | ||
10043 | PL_tainted = proto_perl->Ttainted; | |
10044 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
10045 | PL_nrs = sv_dup_inc(proto_perl->Tnrs, param); |
10046 | PL_rs = sv_dup_inc(proto_perl->Trs, param); | |
10047 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
10048 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
10049 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 10050 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
10051 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
10052 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
10053 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
10054 | |
10055 | PL_restartop = proto_perl->Trestartop; | |
10056 | PL_in_eval = proto_perl->Tin_eval; | |
10057 | PL_delaymagic = proto_perl->Tdelaymagic; | |
10058 | PL_dirty = proto_perl->Tdirty; | |
10059 | PL_localizing = proto_perl->Tlocalizing; | |
10060 | ||
14dd3ad8 | 10061 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 10062 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 10063 | #endif |
d2d73c3e | 10064 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
1d7c1841 GS |
10065 | PL_av_fetch_sv = Nullsv; |
10066 | PL_hv_fetch_sv = Nullsv; | |
10067 | Zero(&PL_hv_fetch_ent_mh, 1, HE); /* XXX */ | |
10068 | PL_modcount = proto_perl->Tmodcount; | |
10069 | PL_lastgotoprobe = Nullop; | |
10070 | PL_dumpindent = proto_perl->Tdumpindent; | |
10071 | ||
10072 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
10073 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
10074 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
10075 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
10076 | PL_sortcxix = proto_perl->Tsortcxix; |
10077 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
10078 | PL_efloatsize = 0; /* reinits on demand */ | |
10079 | ||
10080 | /* regex stuff */ | |
10081 | ||
10082 | PL_screamfirst = NULL; | |
10083 | PL_screamnext = NULL; | |
10084 | PL_maxscream = -1; /* reinits on demand */ | |
10085 | PL_lastscream = Nullsv; | |
10086 | ||
10087 | PL_watchaddr = NULL; | |
10088 | PL_watchok = Nullch; | |
10089 | ||
10090 | PL_regdummy = proto_perl->Tregdummy; | |
10091 | PL_regcomp_parse = Nullch; | |
10092 | PL_regxend = Nullch; | |
10093 | PL_regcode = (regnode*)NULL; | |
10094 | PL_regnaughty = 0; | |
10095 | PL_regsawback = 0; | |
10096 | PL_regprecomp = Nullch; | |
10097 | PL_regnpar = 0; | |
10098 | PL_regsize = 0; | |
10099 | PL_regflags = 0; | |
10100 | PL_regseen = 0; | |
10101 | PL_seen_zerolen = 0; | |
10102 | PL_seen_evals = 0; | |
10103 | PL_regcomp_rx = (regexp*)NULL; | |
10104 | PL_extralen = 0; | |
10105 | PL_colorset = 0; /* reinits PL_colors[] */ | |
10106 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
10107 | PL_reg_whilem_seen = 0; | |
10108 | PL_reginput = Nullch; | |
10109 | PL_regbol = Nullch; | |
10110 | PL_regeol = Nullch; | |
10111 | PL_regstartp = (I32*)NULL; | |
10112 | PL_regendp = (I32*)NULL; | |
10113 | PL_reglastparen = (U32*)NULL; | |
10114 | PL_regtill = Nullch; | |
1d7c1841 GS |
10115 | PL_reg_start_tmp = (char**)NULL; |
10116 | PL_reg_start_tmpl = 0; | |
10117 | PL_regdata = (struct reg_data*)NULL; | |
10118 | PL_bostr = Nullch; | |
10119 | PL_reg_flags = 0; | |
10120 | PL_reg_eval_set = 0; | |
10121 | PL_regnarrate = 0; | |
10122 | PL_regprogram = (regnode*)NULL; | |
10123 | PL_regindent = 0; | |
10124 | PL_regcc = (CURCUR*)NULL; | |
10125 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
10126 | PL_reg_re = (regexp*)NULL; | |
10127 | PL_reg_ganch = Nullch; | |
10128 | PL_reg_sv = Nullsv; | |
10129 | PL_reg_magic = (MAGIC*)NULL; | |
10130 | PL_reg_oldpos = 0; | |
10131 | PL_reg_oldcurpm = (PMOP*)NULL; | |
10132 | PL_reg_curpm = (PMOP*)NULL; | |
10133 | PL_reg_oldsaved = Nullch; | |
10134 | PL_reg_oldsavedlen = 0; | |
10135 | PL_reg_maxiter = 0; | |
10136 | PL_reg_leftiter = 0; | |
10137 | PL_reg_poscache = Nullch; | |
10138 | PL_reg_poscache_size= 0; | |
10139 | ||
10140 | /* RE engine - function pointers */ | |
10141 | PL_regcompp = proto_perl->Tregcompp; | |
10142 | PL_regexecp = proto_perl->Tregexecp; | |
10143 | PL_regint_start = proto_perl->Tregint_start; | |
10144 | PL_regint_string = proto_perl->Tregint_string; | |
10145 | PL_regfree = proto_perl->Tregfree; | |
10146 | ||
10147 | PL_reginterp_cnt = 0; | |
10148 | PL_reg_starttry = 0; | |
10149 | ||
a0739874 DM |
10150 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
10151 | ptr_table_free(PL_ptr_table); | |
10152 | PL_ptr_table = NULL; | |
10153 | } | |
4a09accc | 10154 | |
f284b03f AMS |
10155 | /* Call the ->CLONE method, if it exists, for each of the stashes |
10156 | identified by sv_dup() above. | |
10157 | */ | |
d2d73c3e AB |
10158 | while(av_len(param->stashes) != -1) { |
10159 | HV* stash = (HV*) av_shift(param->stashes); | |
f284b03f AMS |
10160 | GV* cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); |
10161 | if (cloner && GvCV(cloner)) { | |
10162 | dSP; | |
10163 | ENTER; | |
10164 | SAVETMPS; | |
10165 | PUSHMARK(SP); | |
10166 | XPUSHs(newSVpv(HvNAME(stash), 0)); | |
10167 | PUTBACK; | |
10168 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
10169 | FREETMPS; | |
10170 | LEAVE; | |
10171 | } | |
4a09accc | 10172 | } |
a0739874 | 10173 | |
1d7c1841 GS |
10174 | #ifdef PERL_OBJECT |
10175 | return (PerlInterpreter*)pPerl; | |
10176 | #else | |
10177 | return my_perl; | |
10178 | #endif | |
10179 | } | |
10180 | ||
10181 | #else /* !USE_ITHREADS */ | |
51371543 GS |
10182 | |
10183 | #ifdef PERL_OBJECT | |
51371543 GS |
10184 | #include "XSUB.h" |
10185 | #endif | |
10186 | ||
1d7c1841 | 10187 | #endif /* USE_ITHREADS */ |