Commit | Line | Data |
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a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
bc89e66f | 3 | * Copyright (c) 1991-2001, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e | 8 | * "I wonder what the Entish is for 'yes' and 'no'," he thought. |
645c22ef DM |
9 | * |
10 | * | |
5e045b90 AMS |
11 | * This file contains the code that creates, manipulates and destroys |
12 | * scalar values (SVs). The other types (AV, HV, GV, etc.) reuse the | |
13 | * structure of an SV, so their creation and destruction is handled | |
14 | * here; higher-level functions are in av.c, hv.c, and so on. Opcode | |
15 | * level functions (eg. substr, split, join) for each of the types are | |
16 | * in the pp*.c files. | |
79072805 LW |
17 | */ |
18 | ||
19 | #include "EXTERN.h" | |
864dbfa3 | 20 | #define PERL_IN_SV_C |
79072805 | 21 | #include "perl.h" |
d2f185dc | 22 | #include "regcomp.h" |
79072805 | 23 | |
51371543 | 24 | #define FCALL *f |
6fc92669 | 25 | #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_force_normal(sv) |
2c5424a7 | 26 | |
645c22ef DM |
27 | |
28 | /* ============================================================================ | |
29 | ||
30 | =head1 Allocation and deallocation of SVs. | |
31 | ||
5e045b90 AMS |
32 | An SV (or AV, HV, etc.) is allocated in two parts: the head (struct sv, |
33 | av, hv...) contains type and reference count information, as well as a | |
34 | pointer to the body (struct xrv, xpv, xpviv...), which contains fields | |
35 | specific to each type. | |
36 | ||
37 | Normally, this allocation is done using arenas, which are approximately | |
38 | 1K chunks of memory parcelled up into N heads or bodies. The first slot | |
39 | in each arena is reserved, and is used to hold a link to the next arena. | |
40 | In the case of heads, the unused first slot also contains some flags and | |
41 | a note of the number of slots. Snaked through each arena chain is a | |
42 | linked list of free items; when this becomes empty, an extra arena is | |
43 | allocated and divided up into N items which are threaded into the free | |
44 | list. | |
645c22ef DM |
45 | |
46 | The following global variables are associated with arenas: | |
47 | ||
48 | PL_sv_arenaroot pointer to list of SV arenas | |
49 | PL_sv_root pointer to list of free SV structures | |
50 | ||
51 | PL_foo_arenaroot pointer to list of foo arenas, | |
52 | PL_foo_root pointer to list of free foo bodies | |
53 | ... for foo in xiv, xnv, xrv, xpv etc. | |
54 | ||
55 | Note that some of the larger and more rarely used body types (eg xpvio) | |
56 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
57 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
58 | with all items individually malloc()ed. In addition, a few SV heads are | |
59 | not allocated from an arena, but are instead directly created as static | |
60 | or auto variables, eg PL_sv_undef. | |
61 | ||
62 | The SV arena serves the secondary purpose of allowing still-live SVs | |
63 | to be located and destroyed during final cleanup. | |
64 | ||
65 | At the lowest level, the macros new_SV() and del_SV() grab and free | |
66 | an SV head. (If debugging with -DD, del_SV() calls the function S_del_sv() | |
67 | to return the SV to the free list with error checking.) new_SV() calls | |
68 | more_sv() / sv_add_arena() to add an extra arena if the free list is empty. | |
69 | SVs in the free list have their SvTYPE field set to all ones. | |
70 | ||
71 | Similarly, there are macros new_XIV()/del_XIV(), new_XNV()/del_XNV() etc | |
72 | that allocate and return individual body types. Normally these are mapped | |
ff276b08 RG |
73 | to the arena-manipulating functions new_xiv()/del_xiv() etc, but may be |
74 | instead mapped directly to malloc()/free() if PURIFY is defined. The | |
645c22ef DM |
75 | new/del functions remove from, or add to, the appropriate PL_foo_root |
76 | list, and call more_xiv() etc to add a new arena if the list is empty. | |
77 | ||
ff276b08 | 78 | At the time of very final cleanup, sv_free_arenas() is called from |
645c22ef DM |
79 | perl_destruct() to physically free all the arenas allocated since the |
80 | start of the interpreter. Note that this also clears PL_he_arenaroot, | |
81 | which is otherwise dealt with in hv.c. | |
82 | ||
83 | Manipulation of any of the PL_*root pointers is protected by enclosing | |
84 | LOCK_SV_MUTEX; ... UNLOCK_SV_MUTEX calls which should Do the Right Thing | |
85 | if threads are enabled. | |
86 | ||
87 | The function visit() scans the SV arenas list, and calls a specified | |
88 | function for each SV it finds which is still live - ie which has an SvTYPE | |
89 | other than all 1's, and a non-zero SvREFCNT. visit() is used by the | |
90 | following functions (specified as [function that calls visit()] / [function | |
91 | called by visit() for each SV]): | |
92 | ||
93 | sv_report_used() / do_report_used() | |
94 | dump all remaining SVs (debugging aid) | |
95 | ||
96 | sv_clean_objs() / do_clean_objs(),do_clean_named_objs() | |
97 | Attempt to free all objects pointed to by RVs, | |
98 | and, unless DISABLE_DESTRUCTOR_KLUDGE is defined, | |
99 | try to do the same for all objects indirectly | |
100 | referenced by typeglobs too. Called once from | |
101 | perl_destruct(), prior to calling sv_clean_all() | |
102 | below. | |
103 | ||
104 | sv_clean_all() / do_clean_all() | |
105 | SvREFCNT_dec(sv) each remaining SV, possibly | |
106 | triggering an sv_free(). It also sets the | |
107 | SVf_BREAK flag on the SV to indicate that the | |
108 | refcnt has been artificially lowered, and thus | |
109 | stopping sv_free() from giving spurious warnings | |
110 | about SVs which unexpectedly have a refcnt | |
111 | of zero. called repeatedly from perl_destruct() | |
112 | until there are no SVs left. | |
113 | ||
114 | =head2 Summary | |
115 | ||
116 | Private API to rest of sv.c | |
117 | ||
118 | new_SV(), del_SV(), | |
119 | ||
120 | new_XIV(), del_XIV(), | |
121 | new_XNV(), del_XNV(), | |
122 | etc | |
123 | ||
124 | Public API: | |
125 | ||
126 | sv_report_used(), sv_clean_objs(), sv_clean_all(), sv_free_arenas() | |
127 | ||
128 | ||
129 | =cut | |
130 | ||
131 | ============================================================================ */ | |
132 | ||
133 | ||
51371543 | 134 | |
4561caa4 CS |
135 | /* |
136 | * "A time to plant, and a time to uproot what was planted..." | |
137 | */ | |
138 | ||
053fc874 GS |
139 | #define plant_SV(p) \ |
140 | STMT_START { \ | |
141 | SvANY(p) = (void *)PL_sv_root; \ | |
142 | SvFLAGS(p) = SVTYPEMASK; \ | |
143 | PL_sv_root = (p); \ | |
144 | --PL_sv_count; \ | |
145 | } STMT_END | |
a0d0e21e | 146 | |
fba3b22e | 147 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
148 | #define uproot_SV(p) \ |
149 | STMT_START { \ | |
150 | (p) = PL_sv_root; \ | |
151 | PL_sv_root = (SV*)SvANY(p); \ | |
152 | ++PL_sv_count; \ | |
153 | } STMT_END | |
154 | ||
645c22ef DM |
155 | |
156 | /* new_SV(): return a new, empty SV head */ | |
157 | ||
053fc874 GS |
158 | #define new_SV(p) \ |
159 | STMT_START { \ | |
160 | LOCK_SV_MUTEX; \ | |
161 | if (PL_sv_root) \ | |
162 | uproot_SV(p); \ | |
163 | else \ | |
164 | (p) = more_sv(); \ | |
165 | UNLOCK_SV_MUTEX; \ | |
166 | SvANY(p) = 0; \ | |
167 | SvREFCNT(p) = 1; \ | |
168 | SvFLAGS(p) = 0; \ | |
169 | } STMT_END | |
463ee0b2 | 170 | |
645c22ef DM |
171 | |
172 | /* del_SV(): return an empty SV head to the free list */ | |
173 | ||
a0d0e21e | 174 | #ifdef DEBUGGING |
4561caa4 | 175 | |
053fc874 GS |
176 | #define del_SV(p) \ |
177 | STMT_START { \ | |
178 | LOCK_SV_MUTEX; \ | |
aea4f609 | 179 | if (DEBUG_D_TEST) \ |
053fc874 GS |
180 | del_sv(p); \ |
181 | else \ | |
182 | plant_SV(p); \ | |
183 | UNLOCK_SV_MUTEX; \ | |
184 | } STMT_END | |
a0d0e21e | 185 | |
76e3520e | 186 | STATIC void |
cea2e8a9 | 187 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 188 | { |
aea4f609 | 189 | if (DEBUG_D_TEST) { |
4633a7c4 | 190 | SV* sva; |
a0d0e21e LW |
191 | SV* sv; |
192 | SV* svend; | |
193 | int ok = 0; | |
3280af22 | 194 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
195 | sv = sva + 1; |
196 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
197 | if (p >= sv && p < svend) |
198 | ok = 1; | |
199 | } | |
200 | if (!ok) { | |
0453d815 PM |
201 | if (ckWARN_d(WARN_INTERNAL)) |
202 | Perl_warner(aTHX_ WARN_INTERNAL, | |
1d7c1841 GS |
203 | "Attempt to free non-arena SV: 0x%"UVxf, |
204 | PTR2UV(p)); | |
a0d0e21e LW |
205 | return; |
206 | } | |
207 | } | |
4561caa4 | 208 | plant_SV(p); |
463ee0b2 | 209 | } |
a0d0e21e | 210 | |
4561caa4 CS |
211 | #else /* ! DEBUGGING */ |
212 | ||
213 | #define del_SV(p) plant_SV(p) | |
214 | ||
215 | #endif /* DEBUGGING */ | |
463ee0b2 | 216 | |
645c22ef DM |
217 | |
218 | /* | |
219 | =for apidoc sv_add_arena | |
220 | ||
221 | Given a chunk of memory, link it to the head of the list of arenas, | |
222 | and split it into a list of free SVs. | |
223 | ||
224 | =cut | |
225 | */ | |
226 | ||
4633a7c4 | 227 | void |
864dbfa3 | 228 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 229 | { |
4633a7c4 | 230 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
231 | register SV* sv; |
232 | register SV* svend; | |
14dd3ad8 | 233 | Zero(ptr, size, char); |
4633a7c4 LW |
234 | |
235 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 236 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
237 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
238 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
239 | ||
3280af22 NIS |
240 | PL_sv_arenaroot = sva; |
241 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
242 | |
243 | svend = &sva[SvREFCNT(sva) - 1]; | |
244 | sv = sva + 1; | |
463ee0b2 | 245 | while (sv < svend) { |
a0d0e21e | 246 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 | 247 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
248 | sv++; |
249 | } | |
250 | SvANY(sv) = 0; | |
4633a7c4 LW |
251 | SvFLAGS(sv) = SVTYPEMASK; |
252 | } | |
253 | ||
645c22ef DM |
254 | /* make some more SVs by adding another arena */ |
255 | ||
fba3b22e | 256 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 257 | STATIC SV* |
cea2e8a9 | 258 | S_more_sv(pTHX) |
4633a7c4 | 259 | { |
4561caa4 CS |
260 | register SV* sv; |
261 | ||
3280af22 NIS |
262 | if (PL_nice_chunk) { |
263 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
264 | PL_nice_chunk = Nullch; | |
30ad99e7 | 265 | PL_nice_chunk_size = 0; |
c07a80fd | 266 | } |
1edc1566 | 267 | else { |
268 | char *chunk; /* must use New here to match call to */ | |
269 | New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ | |
270 | sv_add_arena(chunk, 1008, 0); | |
271 | } | |
4561caa4 CS |
272 | uproot_SV(sv); |
273 | return sv; | |
463ee0b2 LW |
274 | } |
275 | ||
ff276b08 | 276 | /* visit(): call the named function for each non-free SV in the arenas. */ |
645c22ef | 277 | |
5226ed68 | 278 | STATIC I32 |
cea2e8a9 | 279 | S_visit(pTHX_ SVFUNC_t f) |
8990e307 | 280 | { |
4633a7c4 | 281 | SV* sva; |
8990e307 LW |
282 | SV* sv; |
283 | register SV* svend; | |
5226ed68 | 284 | I32 visited = 0; |
8990e307 | 285 | |
3280af22 | 286 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 287 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 | 288 | for (sv = sva + 1; sv < svend; ++sv) { |
f25c30a3 | 289 | if (SvTYPE(sv) != SVTYPEMASK && SvREFCNT(sv)) { |
acfe0abc | 290 | (FCALL)(aTHX_ sv); |
5226ed68 JH |
291 | ++visited; |
292 | } | |
8990e307 LW |
293 | } |
294 | } | |
5226ed68 | 295 | return visited; |
8990e307 LW |
296 | } |
297 | ||
645c22ef DM |
298 | /* called by sv_report_used() for each live SV */ |
299 | ||
300 | static void | |
acfe0abc | 301 | do_report_used(pTHX_ SV *sv) |
645c22ef DM |
302 | { |
303 | if (SvTYPE(sv) != SVTYPEMASK) { | |
304 | PerlIO_printf(Perl_debug_log, "****\n"); | |
305 | sv_dump(sv); | |
306 | } | |
307 | } | |
308 | ||
309 | /* | |
310 | =for apidoc sv_report_used | |
311 | ||
312 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
313 | ||
314 | =cut | |
315 | */ | |
316 | ||
8990e307 | 317 | void |
864dbfa3 | 318 | Perl_sv_report_used(pTHX) |
4561caa4 | 319 | { |
0b94c7bb | 320 | visit(do_report_used); |
4561caa4 CS |
321 | } |
322 | ||
645c22ef DM |
323 | /* called by sv_clean_objs() for each live SV */ |
324 | ||
325 | static void | |
acfe0abc | 326 | do_clean_objs(pTHX_ SV *sv) |
645c22ef DM |
327 | { |
328 | SV* rv; | |
329 | ||
330 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
331 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv))); | |
332 | if (SvWEAKREF(sv)) { | |
333 | sv_del_backref(sv); | |
334 | SvWEAKREF_off(sv); | |
335 | SvRV(sv) = 0; | |
336 | } else { | |
337 | SvROK_off(sv); | |
338 | SvRV(sv) = 0; | |
339 | SvREFCNT_dec(rv); | |
340 | } | |
341 | } | |
342 | ||
343 | /* XXX Might want to check arrays, etc. */ | |
344 | } | |
345 | ||
346 | /* called by sv_clean_objs() for each live SV */ | |
347 | ||
348 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
349 | static void | |
acfe0abc | 350 | do_clean_named_objs(pTHX_ SV *sv) |
645c22ef DM |
351 | { |
352 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
353 | if ( SvOBJECT(GvSV(sv)) || | |
354 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || | |
355 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
356 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
357 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
358 | { | |
359 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
360 | SvREFCNT_dec(sv); | |
361 | } | |
362 | } | |
363 | } | |
364 | #endif | |
365 | ||
366 | /* | |
367 | =for apidoc sv_clean_objs | |
368 | ||
369 | Attempt to destroy all objects not yet freed | |
370 | ||
371 | =cut | |
372 | */ | |
373 | ||
4561caa4 | 374 | void |
864dbfa3 | 375 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 376 | { |
3280af22 | 377 | PL_in_clean_objs = TRUE; |
0b94c7bb | 378 | visit(do_clean_objs); |
4561caa4 | 379 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 380 | /* some barnacles may yet remain, clinging to typeglobs */ |
0b94c7bb | 381 | visit(do_clean_named_objs); |
4561caa4 | 382 | #endif |
3280af22 | 383 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
384 | } |
385 | ||
645c22ef DM |
386 | /* called by sv_clean_all() for each live SV */ |
387 | ||
388 | static void | |
acfe0abc | 389 | do_clean_all(pTHX_ SV *sv) |
645c22ef DM |
390 | { |
391 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
392 | SvFLAGS(sv) |= SVf_BREAK; | |
393 | SvREFCNT_dec(sv); | |
394 | } | |
395 | ||
396 | /* | |
397 | =for apidoc sv_clean_all | |
398 | ||
399 | Decrement the refcnt of each remaining SV, possibly triggering a | |
400 | cleanup. This function may have to be called multiple times to free | |
ff276b08 | 401 | SVs which are in complex self-referential hierarchies. |
645c22ef DM |
402 | |
403 | =cut | |
404 | */ | |
405 | ||
5226ed68 | 406 | I32 |
864dbfa3 | 407 | Perl_sv_clean_all(pTHX) |
8990e307 | 408 | { |
5226ed68 | 409 | I32 cleaned; |
3280af22 | 410 | PL_in_clean_all = TRUE; |
5226ed68 | 411 | cleaned = visit(do_clean_all); |
3280af22 | 412 | PL_in_clean_all = FALSE; |
5226ed68 | 413 | return cleaned; |
8990e307 | 414 | } |
463ee0b2 | 415 | |
645c22ef DM |
416 | /* |
417 | =for apidoc sv_free_arenas | |
418 | ||
419 | Deallocate the memory used by all arenas. Note that all the individual SV | |
420 | heads and bodies within the arenas must already have been freed. | |
421 | ||
422 | =cut | |
423 | */ | |
424 | ||
4633a7c4 | 425 | void |
864dbfa3 | 426 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
427 | { |
428 | SV* sva; | |
429 | SV* svanext; | |
612f20c3 | 430 | XPV *arena, *arenanext; |
4633a7c4 LW |
431 | |
432 | /* Free arenas here, but be careful about fake ones. (We assume | |
433 | contiguity of the fake ones with the corresponding real ones.) */ | |
434 | ||
3280af22 | 435 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
436 | svanext = (SV*) SvANY(sva); |
437 | while (svanext && SvFAKE(svanext)) | |
438 | svanext = (SV*) SvANY(svanext); | |
439 | ||
440 | if (!SvFAKE(sva)) | |
1edc1566 | 441 | Safefree((void *)sva); |
4633a7c4 | 442 | } |
5f05dabc | 443 | |
612f20c3 GS |
444 | for (arena = PL_xiv_arenaroot; arena; arena = arenanext) { |
445 | arenanext = (XPV*)arena->xpv_pv; | |
446 | Safefree(arena); | |
447 | } | |
448 | PL_xiv_arenaroot = 0; | |
449 | ||
450 | for (arena = PL_xnv_arenaroot; arena; arena = arenanext) { | |
451 | arenanext = (XPV*)arena->xpv_pv; | |
452 | Safefree(arena); | |
453 | } | |
454 | PL_xnv_arenaroot = 0; | |
455 | ||
456 | for (arena = PL_xrv_arenaroot; arena; arena = arenanext) { | |
457 | arenanext = (XPV*)arena->xpv_pv; | |
458 | Safefree(arena); | |
459 | } | |
460 | PL_xrv_arenaroot = 0; | |
461 | ||
462 | for (arena = PL_xpv_arenaroot; arena; arena = arenanext) { | |
463 | arenanext = (XPV*)arena->xpv_pv; | |
464 | Safefree(arena); | |
465 | } | |
466 | PL_xpv_arenaroot = 0; | |
467 | ||
468 | for (arena = (XPV*)PL_xpviv_arenaroot; arena; arena = arenanext) { | |
469 | arenanext = (XPV*)arena->xpv_pv; | |
470 | Safefree(arena); | |
471 | } | |
472 | PL_xpviv_arenaroot = 0; | |
473 | ||
474 | for (arena = (XPV*)PL_xpvnv_arenaroot; arena; arena = arenanext) { | |
475 | arenanext = (XPV*)arena->xpv_pv; | |
476 | Safefree(arena); | |
477 | } | |
478 | PL_xpvnv_arenaroot = 0; | |
479 | ||
480 | for (arena = (XPV*)PL_xpvcv_arenaroot; arena; arena = arenanext) { | |
481 | arenanext = (XPV*)arena->xpv_pv; | |
482 | Safefree(arena); | |
483 | } | |
484 | PL_xpvcv_arenaroot = 0; | |
485 | ||
486 | for (arena = (XPV*)PL_xpvav_arenaroot; arena; arena = arenanext) { | |
487 | arenanext = (XPV*)arena->xpv_pv; | |
488 | Safefree(arena); | |
489 | } | |
490 | PL_xpvav_arenaroot = 0; | |
491 | ||
492 | for (arena = (XPV*)PL_xpvhv_arenaroot; arena; arena = arenanext) { | |
493 | arenanext = (XPV*)arena->xpv_pv; | |
494 | Safefree(arena); | |
495 | } | |
496 | PL_xpvhv_arenaroot = 0; | |
497 | ||
498 | for (arena = (XPV*)PL_xpvmg_arenaroot; arena; arena = arenanext) { | |
499 | arenanext = (XPV*)arena->xpv_pv; | |
500 | Safefree(arena); | |
501 | } | |
502 | PL_xpvmg_arenaroot = 0; | |
503 | ||
504 | for (arena = (XPV*)PL_xpvlv_arenaroot; arena; arena = arenanext) { | |
505 | arenanext = (XPV*)arena->xpv_pv; | |
506 | Safefree(arena); | |
507 | } | |
508 | PL_xpvlv_arenaroot = 0; | |
509 | ||
510 | for (arena = (XPV*)PL_xpvbm_arenaroot; arena; arena = arenanext) { | |
511 | arenanext = (XPV*)arena->xpv_pv; | |
512 | Safefree(arena); | |
513 | } | |
514 | PL_xpvbm_arenaroot = 0; | |
515 | ||
516 | for (arena = (XPV*)PL_he_arenaroot; arena; arena = arenanext) { | |
517 | arenanext = (XPV*)arena->xpv_pv; | |
518 | Safefree(arena); | |
519 | } | |
520 | PL_he_arenaroot = 0; | |
521 | ||
3280af22 NIS |
522 | if (PL_nice_chunk) |
523 | Safefree(PL_nice_chunk); | |
524 | PL_nice_chunk = Nullch; | |
525 | PL_nice_chunk_size = 0; | |
526 | PL_sv_arenaroot = 0; | |
527 | PL_sv_root = 0; | |
4633a7c4 LW |
528 | } |
529 | ||
645c22ef DM |
530 | /* |
531 | =for apidoc report_uninit | |
532 | ||
533 | Print appropriate "Use of uninitialized variable" warning | |
534 | ||
535 | =cut | |
536 | */ | |
537 | ||
1d7c1841 GS |
538 | void |
539 | Perl_report_uninit(pTHX) | |
540 | { | |
541 | if (PL_op) | |
542 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, | |
53e06cf0 | 543 | " in ", OP_DESC(PL_op)); |
1d7c1841 GS |
544 | else |
545 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, "", ""); | |
546 | } | |
547 | ||
645c22ef DM |
548 | /* grab a new IV body from the free list, allocating more if necessary */ |
549 | ||
76e3520e | 550 | STATIC XPVIV* |
cea2e8a9 | 551 | S_new_xiv(pTHX) |
463ee0b2 | 552 | { |
ea7c11a3 | 553 | IV* xiv; |
cbe51380 GS |
554 | LOCK_SV_MUTEX; |
555 | if (!PL_xiv_root) | |
556 | more_xiv(); | |
557 | xiv = PL_xiv_root; | |
558 | /* | |
559 | * See comment in more_xiv() -- RAM. | |
560 | */ | |
561 | PL_xiv_root = *(IV**)xiv; | |
562 | UNLOCK_SV_MUTEX; | |
563 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
564 | } |
565 | ||
645c22ef DM |
566 | /* return an IV body to the free list */ |
567 | ||
76e3520e | 568 | STATIC void |
cea2e8a9 | 569 | S_del_xiv(pTHX_ XPVIV *p) |
463ee0b2 | 570 | { |
23e6a22f | 571 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 572 | LOCK_SV_MUTEX; |
3280af22 NIS |
573 | *(IV**)xiv = PL_xiv_root; |
574 | PL_xiv_root = xiv; | |
cbe51380 | 575 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
576 | } |
577 | ||
645c22ef DM |
578 | /* allocate another arena's worth of IV bodies */ |
579 | ||
cbe51380 | 580 | STATIC void |
cea2e8a9 | 581 | S_more_xiv(pTHX) |
463ee0b2 | 582 | { |
ea7c11a3 SM |
583 | register IV* xiv; |
584 | register IV* xivend; | |
8c52afec IZ |
585 | XPV* ptr; |
586 | New(705, ptr, 1008/sizeof(XPV), XPV); | |
645c22ef | 587 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
3280af22 | 588 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ |
a0d0e21e | 589 | |
ea7c11a3 SM |
590 | xiv = (IV*) ptr; |
591 | xivend = &xiv[1008 / sizeof(IV) - 1]; | |
645c22ef | 592 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ |
3280af22 | 593 | PL_xiv_root = xiv; |
463ee0b2 | 594 | while (xiv < xivend) { |
ea7c11a3 | 595 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
596 | xiv++; |
597 | } | |
ea7c11a3 | 598 | *(IV**)xiv = 0; |
463ee0b2 LW |
599 | } |
600 | ||
645c22ef DM |
601 | /* grab a new NV body from the free list, allocating more if necessary */ |
602 | ||
76e3520e | 603 | STATIC XPVNV* |
cea2e8a9 | 604 | S_new_xnv(pTHX) |
463ee0b2 | 605 | { |
65202027 | 606 | NV* xnv; |
cbe51380 GS |
607 | LOCK_SV_MUTEX; |
608 | if (!PL_xnv_root) | |
609 | more_xnv(); | |
610 | xnv = PL_xnv_root; | |
65202027 | 611 | PL_xnv_root = *(NV**)xnv; |
cbe51380 GS |
612 | UNLOCK_SV_MUTEX; |
613 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
614 | } |
615 | ||
645c22ef DM |
616 | /* return an NV body to the free list */ |
617 | ||
76e3520e | 618 | STATIC void |
cea2e8a9 | 619 | S_del_xnv(pTHX_ XPVNV *p) |
463ee0b2 | 620 | { |
65202027 | 621 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 622 | LOCK_SV_MUTEX; |
65202027 | 623 | *(NV**)xnv = PL_xnv_root; |
3280af22 | 624 | PL_xnv_root = xnv; |
cbe51380 | 625 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
626 | } |
627 | ||
645c22ef DM |
628 | /* allocate another arena's worth of NV bodies */ |
629 | ||
cbe51380 | 630 | STATIC void |
cea2e8a9 | 631 | S_more_xnv(pTHX) |
463ee0b2 | 632 | { |
65202027 DS |
633 | register NV* xnv; |
634 | register NV* xnvend; | |
612f20c3 GS |
635 | XPV *ptr; |
636 | New(711, ptr, 1008/sizeof(XPV), XPV); | |
637 | ptr->xpv_pv = (char*)PL_xnv_arenaroot; | |
638 | PL_xnv_arenaroot = ptr; | |
639 | ||
640 | xnv = (NV*) ptr; | |
65202027 DS |
641 | xnvend = &xnv[1008 / sizeof(NV) - 1]; |
642 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ | |
3280af22 | 643 | PL_xnv_root = xnv; |
463ee0b2 | 644 | while (xnv < xnvend) { |
65202027 | 645 | *(NV**)xnv = (NV*)(xnv + 1); |
463ee0b2 LW |
646 | xnv++; |
647 | } | |
65202027 | 648 | *(NV**)xnv = 0; |
463ee0b2 LW |
649 | } |
650 | ||
645c22ef DM |
651 | /* grab a new struct xrv from the free list, allocating more if necessary */ |
652 | ||
76e3520e | 653 | STATIC XRV* |
cea2e8a9 | 654 | S_new_xrv(pTHX) |
ed6116ce LW |
655 | { |
656 | XRV* xrv; | |
cbe51380 GS |
657 | LOCK_SV_MUTEX; |
658 | if (!PL_xrv_root) | |
659 | more_xrv(); | |
660 | xrv = PL_xrv_root; | |
661 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
662 | UNLOCK_SV_MUTEX; | |
663 | return xrv; | |
ed6116ce LW |
664 | } |
665 | ||
645c22ef DM |
666 | /* return a struct xrv to the free list */ |
667 | ||
76e3520e | 668 | STATIC void |
cea2e8a9 | 669 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 670 | { |
cbe51380 | 671 | LOCK_SV_MUTEX; |
3280af22 NIS |
672 | p->xrv_rv = (SV*)PL_xrv_root; |
673 | PL_xrv_root = p; | |
cbe51380 | 674 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
675 | } |
676 | ||
645c22ef DM |
677 | /* allocate another arena's worth of struct xrv */ |
678 | ||
cbe51380 | 679 | STATIC void |
cea2e8a9 | 680 | S_more_xrv(pTHX) |
ed6116ce | 681 | { |
ed6116ce LW |
682 | register XRV* xrv; |
683 | register XRV* xrvend; | |
612f20c3 GS |
684 | XPV *ptr; |
685 | New(712, ptr, 1008/sizeof(XPV), XPV); | |
686 | ptr->xpv_pv = (char*)PL_xrv_arenaroot; | |
687 | PL_xrv_arenaroot = ptr; | |
688 | ||
689 | xrv = (XRV*) ptr; | |
ed6116ce | 690 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
612f20c3 GS |
691 | xrv += (sizeof(XPV) - 1) / sizeof(XRV) + 1; |
692 | PL_xrv_root = xrv; | |
ed6116ce LW |
693 | while (xrv < xrvend) { |
694 | xrv->xrv_rv = (SV*)(xrv + 1); | |
695 | xrv++; | |
696 | } | |
697 | xrv->xrv_rv = 0; | |
ed6116ce LW |
698 | } |
699 | ||
645c22ef DM |
700 | /* grab a new struct xpv from the free list, allocating more if necessary */ |
701 | ||
76e3520e | 702 | STATIC XPV* |
cea2e8a9 | 703 | S_new_xpv(pTHX) |
463ee0b2 LW |
704 | { |
705 | XPV* xpv; | |
cbe51380 GS |
706 | LOCK_SV_MUTEX; |
707 | if (!PL_xpv_root) | |
708 | more_xpv(); | |
709 | xpv = PL_xpv_root; | |
710 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
711 | UNLOCK_SV_MUTEX; | |
712 | return xpv; | |
463ee0b2 LW |
713 | } |
714 | ||
645c22ef DM |
715 | /* return a struct xpv to the free list */ |
716 | ||
76e3520e | 717 | STATIC void |
cea2e8a9 | 718 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 719 | { |
cbe51380 | 720 | LOCK_SV_MUTEX; |
3280af22 NIS |
721 | p->xpv_pv = (char*)PL_xpv_root; |
722 | PL_xpv_root = p; | |
cbe51380 | 723 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
724 | } |
725 | ||
645c22ef DM |
726 | /* allocate another arena's worth of struct xpv */ |
727 | ||
cbe51380 | 728 | STATIC void |
cea2e8a9 | 729 | S_more_xpv(pTHX) |
463ee0b2 | 730 | { |
463ee0b2 LW |
731 | register XPV* xpv; |
732 | register XPV* xpvend; | |
612f20c3 GS |
733 | New(713, xpv, 1008/sizeof(XPV), XPV); |
734 | xpv->xpv_pv = (char*)PL_xpv_arenaroot; | |
735 | PL_xpv_arenaroot = xpv; | |
736 | ||
463ee0b2 | 737 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
612f20c3 | 738 | PL_xpv_root = ++xpv; |
463ee0b2 LW |
739 | while (xpv < xpvend) { |
740 | xpv->xpv_pv = (char*)(xpv + 1); | |
741 | xpv++; | |
742 | } | |
743 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
744 | } |
745 | ||
645c22ef DM |
746 | /* grab a new struct xpviv from the free list, allocating more if necessary */ |
747 | ||
932e9ff9 VB |
748 | STATIC XPVIV* |
749 | S_new_xpviv(pTHX) | |
750 | { | |
751 | XPVIV* xpviv; | |
752 | LOCK_SV_MUTEX; | |
753 | if (!PL_xpviv_root) | |
754 | more_xpviv(); | |
755 | xpviv = PL_xpviv_root; | |
756 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
757 | UNLOCK_SV_MUTEX; | |
758 | return xpviv; | |
759 | } | |
760 | ||
645c22ef DM |
761 | /* return a struct xpviv to the free list */ |
762 | ||
932e9ff9 VB |
763 | STATIC void |
764 | S_del_xpviv(pTHX_ XPVIV *p) | |
765 | { | |
766 | LOCK_SV_MUTEX; | |
767 | p->xpv_pv = (char*)PL_xpviv_root; | |
768 | PL_xpviv_root = p; | |
769 | UNLOCK_SV_MUTEX; | |
770 | } | |
771 | ||
645c22ef DM |
772 | /* allocate another arena's worth of struct xpviv */ |
773 | ||
932e9ff9 VB |
774 | STATIC void |
775 | S_more_xpviv(pTHX) | |
776 | { | |
777 | register XPVIV* xpviv; | |
778 | register XPVIV* xpvivend; | |
612f20c3 GS |
779 | New(714, xpviv, 1008/sizeof(XPVIV), XPVIV); |
780 | xpviv->xpv_pv = (char*)PL_xpviv_arenaroot; | |
781 | PL_xpviv_arenaroot = xpviv; | |
782 | ||
932e9ff9 | 783 | xpvivend = &xpviv[1008 / sizeof(XPVIV) - 1]; |
612f20c3 | 784 | PL_xpviv_root = ++xpviv; |
932e9ff9 VB |
785 | while (xpviv < xpvivend) { |
786 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
787 | xpviv++; | |
788 | } | |
789 | xpviv->xpv_pv = 0; | |
790 | } | |
791 | ||
645c22ef DM |
792 | /* grab a new struct xpvnv from the free list, allocating more if necessary */ |
793 | ||
932e9ff9 VB |
794 | STATIC XPVNV* |
795 | S_new_xpvnv(pTHX) | |
796 | { | |
797 | XPVNV* xpvnv; | |
798 | LOCK_SV_MUTEX; | |
799 | if (!PL_xpvnv_root) | |
800 | more_xpvnv(); | |
801 | xpvnv = PL_xpvnv_root; | |
802 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
803 | UNLOCK_SV_MUTEX; | |
804 | return xpvnv; | |
805 | } | |
806 | ||
645c22ef DM |
807 | /* return a struct xpvnv to the free list */ |
808 | ||
932e9ff9 VB |
809 | STATIC void |
810 | S_del_xpvnv(pTHX_ XPVNV *p) | |
811 | { | |
812 | LOCK_SV_MUTEX; | |
813 | p->xpv_pv = (char*)PL_xpvnv_root; | |
814 | PL_xpvnv_root = p; | |
815 | UNLOCK_SV_MUTEX; | |
816 | } | |
817 | ||
645c22ef DM |
818 | /* allocate another arena's worth of struct xpvnv */ |
819 | ||
932e9ff9 VB |
820 | STATIC void |
821 | S_more_xpvnv(pTHX) | |
822 | { | |
823 | register XPVNV* xpvnv; | |
824 | register XPVNV* xpvnvend; | |
612f20c3 GS |
825 | New(715, xpvnv, 1008/sizeof(XPVNV), XPVNV); |
826 | xpvnv->xpv_pv = (char*)PL_xpvnv_arenaroot; | |
827 | PL_xpvnv_arenaroot = xpvnv; | |
828 | ||
932e9ff9 | 829 | xpvnvend = &xpvnv[1008 / sizeof(XPVNV) - 1]; |
612f20c3 | 830 | PL_xpvnv_root = ++xpvnv; |
932e9ff9 VB |
831 | while (xpvnv < xpvnvend) { |
832 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
833 | xpvnv++; | |
834 | } | |
835 | xpvnv->xpv_pv = 0; | |
836 | } | |
837 | ||
645c22ef DM |
838 | /* grab a new struct xpvcv from the free list, allocating more if necessary */ |
839 | ||
932e9ff9 VB |
840 | STATIC XPVCV* |
841 | S_new_xpvcv(pTHX) | |
842 | { | |
843 | XPVCV* xpvcv; | |
844 | LOCK_SV_MUTEX; | |
845 | if (!PL_xpvcv_root) | |
846 | more_xpvcv(); | |
847 | xpvcv = PL_xpvcv_root; | |
848 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
849 | UNLOCK_SV_MUTEX; | |
850 | return xpvcv; | |
851 | } | |
852 | ||
645c22ef DM |
853 | /* return a struct xpvcv to the free list */ |
854 | ||
932e9ff9 VB |
855 | STATIC void |
856 | S_del_xpvcv(pTHX_ XPVCV *p) | |
857 | { | |
858 | LOCK_SV_MUTEX; | |
859 | p->xpv_pv = (char*)PL_xpvcv_root; | |
860 | PL_xpvcv_root = p; | |
861 | UNLOCK_SV_MUTEX; | |
862 | } | |
863 | ||
645c22ef DM |
864 | /* allocate another arena's worth of struct xpvcv */ |
865 | ||
932e9ff9 VB |
866 | STATIC void |
867 | S_more_xpvcv(pTHX) | |
868 | { | |
869 | register XPVCV* xpvcv; | |
870 | register XPVCV* xpvcvend; | |
612f20c3 GS |
871 | New(716, xpvcv, 1008/sizeof(XPVCV), XPVCV); |
872 | xpvcv->xpv_pv = (char*)PL_xpvcv_arenaroot; | |
873 | PL_xpvcv_arenaroot = xpvcv; | |
874 | ||
932e9ff9 | 875 | xpvcvend = &xpvcv[1008 / sizeof(XPVCV) - 1]; |
612f20c3 | 876 | PL_xpvcv_root = ++xpvcv; |
932e9ff9 VB |
877 | while (xpvcv < xpvcvend) { |
878 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
879 | xpvcv++; | |
880 | } | |
881 | xpvcv->xpv_pv = 0; | |
882 | } | |
883 | ||
645c22ef DM |
884 | /* grab a new struct xpvav from the free list, allocating more if necessary */ |
885 | ||
932e9ff9 VB |
886 | STATIC XPVAV* |
887 | S_new_xpvav(pTHX) | |
888 | { | |
889 | XPVAV* xpvav; | |
890 | LOCK_SV_MUTEX; | |
891 | if (!PL_xpvav_root) | |
892 | more_xpvav(); | |
893 | xpvav = PL_xpvav_root; | |
894 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
895 | UNLOCK_SV_MUTEX; | |
896 | return xpvav; | |
897 | } | |
898 | ||
645c22ef DM |
899 | /* return a struct xpvav to the free list */ |
900 | ||
932e9ff9 VB |
901 | STATIC void |
902 | S_del_xpvav(pTHX_ XPVAV *p) | |
903 | { | |
904 | LOCK_SV_MUTEX; | |
905 | p->xav_array = (char*)PL_xpvav_root; | |
906 | PL_xpvav_root = p; | |
907 | UNLOCK_SV_MUTEX; | |
908 | } | |
909 | ||
645c22ef DM |
910 | /* allocate another arena's worth of struct xpvav */ |
911 | ||
932e9ff9 VB |
912 | STATIC void |
913 | S_more_xpvav(pTHX) | |
914 | { | |
915 | register XPVAV* xpvav; | |
916 | register XPVAV* xpvavend; | |
612f20c3 GS |
917 | New(717, xpvav, 1008/sizeof(XPVAV), XPVAV); |
918 | xpvav->xav_array = (char*)PL_xpvav_arenaroot; | |
919 | PL_xpvav_arenaroot = xpvav; | |
920 | ||
932e9ff9 | 921 | xpvavend = &xpvav[1008 / sizeof(XPVAV) - 1]; |
612f20c3 | 922 | PL_xpvav_root = ++xpvav; |
932e9ff9 VB |
923 | while (xpvav < xpvavend) { |
924 | xpvav->xav_array = (char*)(xpvav + 1); | |
925 | xpvav++; | |
926 | } | |
927 | xpvav->xav_array = 0; | |
928 | } | |
929 | ||
645c22ef DM |
930 | /* grab a new struct xpvhv from the free list, allocating more if necessary */ |
931 | ||
932e9ff9 VB |
932 | STATIC XPVHV* |
933 | S_new_xpvhv(pTHX) | |
934 | { | |
935 | XPVHV* xpvhv; | |
936 | LOCK_SV_MUTEX; | |
937 | if (!PL_xpvhv_root) | |
938 | more_xpvhv(); | |
939 | xpvhv = PL_xpvhv_root; | |
940 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
941 | UNLOCK_SV_MUTEX; | |
942 | return xpvhv; | |
943 | } | |
944 | ||
645c22ef DM |
945 | /* return a struct xpvhv to the free list */ |
946 | ||
932e9ff9 VB |
947 | STATIC void |
948 | S_del_xpvhv(pTHX_ XPVHV *p) | |
949 | { | |
950 | LOCK_SV_MUTEX; | |
951 | p->xhv_array = (char*)PL_xpvhv_root; | |
952 | PL_xpvhv_root = p; | |
953 | UNLOCK_SV_MUTEX; | |
954 | } | |
955 | ||
645c22ef DM |
956 | /* allocate another arena's worth of struct xpvhv */ |
957 | ||
932e9ff9 VB |
958 | STATIC void |
959 | S_more_xpvhv(pTHX) | |
960 | { | |
961 | register XPVHV* xpvhv; | |
962 | register XPVHV* xpvhvend; | |
612f20c3 GS |
963 | New(718, xpvhv, 1008/sizeof(XPVHV), XPVHV); |
964 | xpvhv->xhv_array = (char*)PL_xpvhv_arenaroot; | |
965 | PL_xpvhv_arenaroot = xpvhv; | |
966 | ||
932e9ff9 | 967 | xpvhvend = &xpvhv[1008 / sizeof(XPVHV) - 1]; |
612f20c3 | 968 | PL_xpvhv_root = ++xpvhv; |
932e9ff9 VB |
969 | while (xpvhv < xpvhvend) { |
970 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
971 | xpvhv++; | |
972 | } | |
973 | xpvhv->xhv_array = 0; | |
974 | } | |
975 | ||
645c22ef DM |
976 | /* grab a new struct xpvmg from the free list, allocating more if necessary */ |
977 | ||
932e9ff9 VB |
978 | STATIC XPVMG* |
979 | S_new_xpvmg(pTHX) | |
980 | { | |
981 | XPVMG* xpvmg; | |
982 | LOCK_SV_MUTEX; | |
983 | if (!PL_xpvmg_root) | |
984 | more_xpvmg(); | |
985 | xpvmg = PL_xpvmg_root; | |
986 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
987 | UNLOCK_SV_MUTEX; | |
988 | return xpvmg; | |
989 | } | |
990 | ||
645c22ef DM |
991 | /* return a struct xpvmg to the free list */ |
992 | ||
932e9ff9 VB |
993 | STATIC void |
994 | S_del_xpvmg(pTHX_ XPVMG *p) | |
995 | { | |
996 | LOCK_SV_MUTEX; | |
997 | p->xpv_pv = (char*)PL_xpvmg_root; | |
998 | PL_xpvmg_root = p; | |
999 | UNLOCK_SV_MUTEX; | |
1000 | } | |
1001 | ||
645c22ef DM |
1002 | /* allocate another arena's worth of struct xpvmg */ |
1003 | ||
932e9ff9 VB |
1004 | STATIC void |
1005 | S_more_xpvmg(pTHX) | |
1006 | { | |
1007 | register XPVMG* xpvmg; | |
1008 | register XPVMG* xpvmgend; | |
612f20c3 GS |
1009 | New(719, xpvmg, 1008/sizeof(XPVMG), XPVMG); |
1010 | xpvmg->xpv_pv = (char*)PL_xpvmg_arenaroot; | |
1011 | PL_xpvmg_arenaroot = xpvmg; | |
1012 | ||
932e9ff9 | 1013 | xpvmgend = &xpvmg[1008 / sizeof(XPVMG) - 1]; |
612f20c3 | 1014 | PL_xpvmg_root = ++xpvmg; |
932e9ff9 VB |
1015 | while (xpvmg < xpvmgend) { |
1016 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
1017 | xpvmg++; | |
1018 | } | |
1019 | xpvmg->xpv_pv = 0; | |
1020 | } | |
1021 | ||
645c22ef DM |
1022 | /* grab a new struct xpvlv from the free list, allocating more if necessary */ |
1023 | ||
932e9ff9 VB |
1024 | STATIC XPVLV* |
1025 | S_new_xpvlv(pTHX) | |
1026 | { | |
1027 | XPVLV* xpvlv; | |
1028 | LOCK_SV_MUTEX; | |
1029 | if (!PL_xpvlv_root) | |
1030 | more_xpvlv(); | |
1031 | xpvlv = PL_xpvlv_root; | |
1032 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
1033 | UNLOCK_SV_MUTEX; | |
1034 | return xpvlv; | |
1035 | } | |
1036 | ||
645c22ef DM |
1037 | /* return a struct xpvlv to the free list */ |
1038 | ||
932e9ff9 VB |
1039 | STATIC void |
1040 | S_del_xpvlv(pTHX_ XPVLV *p) | |
1041 | { | |
1042 | LOCK_SV_MUTEX; | |
1043 | p->xpv_pv = (char*)PL_xpvlv_root; | |
1044 | PL_xpvlv_root = p; | |
1045 | UNLOCK_SV_MUTEX; | |
1046 | } | |
1047 | ||
645c22ef DM |
1048 | /* allocate another arena's worth of struct xpvlv */ |
1049 | ||
932e9ff9 VB |
1050 | STATIC void |
1051 | S_more_xpvlv(pTHX) | |
1052 | { | |
1053 | register XPVLV* xpvlv; | |
1054 | register XPVLV* xpvlvend; | |
612f20c3 GS |
1055 | New(720, xpvlv, 1008/sizeof(XPVLV), XPVLV); |
1056 | xpvlv->xpv_pv = (char*)PL_xpvlv_arenaroot; | |
1057 | PL_xpvlv_arenaroot = xpvlv; | |
1058 | ||
932e9ff9 | 1059 | xpvlvend = &xpvlv[1008 / sizeof(XPVLV) - 1]; |
612f20c3 | 1060 | PL_xpvlv_root = ++xpvlv; |
932e9ff9 VB |
1061 | while (xpvlv < xpvlvend) { |
1062 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
1063 | xpvlv++; | |
1064 | } | |
1065 | xpvlv->xpv_pv = 0; | |
1066 | } | |
1067 | ||
645c22ef DM |
1068 | /* grab a new struct xpvbm from the free list, allocating more if necessary */ |
1069 | ||
932e9ff9 VB |
1070 | STATIC XPVBM* |
1071 | S_new_xpvbm(pTHX) | |
1072 | { | |
1073 | XPVBM* xpvbm; | |
1074 | LOCK_SV_MUTEX; | |
1075 | if (!PL_xpvbm_root) | |
1076 | more_xpvbm(); | |
1077 | xpvbm = PL_xpvbm_root; | |
1078 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
1079 | UNLOCK_SV_MUTEX; | |
1080 | return xpvbm; | |
1081 | } | |
1082 | ||
645c22ef DM |
1083 | /* return a struct xpvbm to the free list */ |
1084 | ||
932e9ff9 VB |
1085 | STATIC void |
1086 | S_del_xpvbm(pTHX_ XPVBM *p) | |
1087 | { | |
1088 | LOCK_SV_MUTEX; | |
1089 | p->xpv_pv = (char*)PL_xpvbm_root; | |
1090 | PL_xpvbm_root = p; | |
1091 | UNLOCK_SV_MUTEX; | |
1092 | } | |
1093 | ||
645c22ef DM |
1094 | /* allocate another arena's worth of struct xpvbm */ |
1095 | ||
932e9ff9 VB |
1096 | STATIC void |
1097 | S_more_xpvbm(pTHX) | |
1098 | { | |
1099 | register XPVBM* xpvbm; | |
1100 | register XPVBM* xpvbmend; | |
612f20c3 GS |
1101 | New(721, xpvbm, 1008/sizeof(XPVBM), XPVBM); |
1102 | xpvbm->xpv_pv = (char*)PL_xpvbm_arenaroot; | |
1103 | PL_xpvbm_arenaroot = xpvbm; | |
1104 | ||
932e9ff9 | 1105 | xpvbmend = &xpvbm[1008 / sizeof(XPVBM) - 1]; |
612f20c3 | 1106 | PL_xpvbm_root = ++xpvbm; |
932e9ff9 VB |
1107 | while (xpvbm < xpvbmend) { |
1108 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
1109 | xpvbm++; | |
1110 | } | |
1111 | xpvbm->xpv_pv = 0; | |
1112 | } | |
1113 | ||
d33b2eba GS |
1114 | #ifdef LEAKTEST |
1115 | # define my_safemalloc(s) (void*)safexmalloc(717,s) | |
1116 | # define my_safefree(p) safexfree((char*)p) | |
1117 | #else | |
1118 | # define my_safemalloc(s) (void*)safemalloc(s) | |
1119 | # define my_safefree(p) safefree((char*)p) | |
1120 | #endif | |
463ee0b2 | 1121 | |
d33b2eba | 1122 | #ifdef PURIFY |
463ee0b2 | 1123 | |
d33b2eba GS |
1124 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
1125 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 1126 | |
d33b2eba GS |
1127 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1128 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1129 | |
d33b2eba GS |
1130 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
1131 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 1132 | |
d33b2eba GS |
1133 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1134 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1135 | |
d33b2eba GS |
1136 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1137 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1138 | |
d33b2eba GS |
1139 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1140 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1141 | |
d33b2eba GS |
1142 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1143 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1144 | |
d33b2eba GS |
1145 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1146 | #define del_XPVAV(p) my_safefree(p) | |
1147 | ||
1148 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1149 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1150 | |
d33b2eba GS |
1151 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1152 | #define del_XPVMG(p) my_safefree(p) | |
1153 | ||
1154 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) | |
1155 | #define del_XPVLV(p) my_safefree(p) | |
1156 | ||
1157 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1158 | #define del_XPVBM(p) my_safefree(p) | |
1159 | ||
1160 | #else /* !PURIFY */ | |
1161 | ||
1162 | #define new_XIV() (void*)new_xiv() | |
1163 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
1164 | ||
1165 | #define new_XNV() (void*)new_xnv() | |
1166 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 1167 | |
d33b2eba GS |
1168 | #define new_XRV() (void*)new_xrv() |
1169 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 1170 | |
d33b2eba GS |
1171 | #define new_XPV() (void*)new_xpv() |
1172 | #define del_XPV(p) del_xpv((XPV *)p) | |
1173 | ||
1174 | #define new_XPVIV() (void*)new_xpviv() | |
1175 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
1176 | ||
1177 | #define new_XPVNV() (void*)new_xpvnv() | |
1178 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
1179 | ||
1180 | #define new_XPVCV() (void*)new_xpvcv() | |
1181 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
1182 | ||
1183 | #define new_XPVAV() (void*)new_xpvav() | |
1184 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
1185 | ||
1186 | #define new_XPVHV() (void*)new_xpvhv() | |
1187 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
1c846c1f | 1188 | |
d33b2eba GS |
1189 | #define new_XPVMG() (void*)new_xpvmg() |
1190 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
1191 | ||
1192 | #define new_XPVLV() (void*)new_xpvlv() | |
1193 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
1194 | ||
1195 | #define new_XPVBM() (void*)new_xpvbm() | |
1196 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
1197 | ||
1198 | #endif /* PURIFY */ | |
9b94d1dd | 1199 | |
d33b2eba GS |
1200 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1201 | #define del_XPVGV(p) my_safefree(p) | |
1c846c1f | 1202 | |
d33b2eba GS |
1203 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1204 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1205 | |
d33b2eba GS |
1206 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1207 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1208 | |
954c1994 GS |
1209 | /* |
1210 | =for apidoc sv_upgrade | |
1211 | ||
ff276b08 | 1212 | Upgrade an SV to a more complex form. Generally adds a new body type to the |
645c22ef | 1213 | SV, then copies across as much information as possible from the old body. |
ff276b08 | 1214 | You generally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. |
954c1994 GS |
1215 | |
1216 | =cut | |
1217 | */ | |
1218 | ||
79072805 | 1219 | bool |
864dbfa3 | 1220 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 LW |
1221 | { |
1222 | char* pv; | |
1223 | U32 cur; | |
1224 | U32 len; | |
a0d0e21e | 1225 | IV iv; |
65202027 | 1226 | NV nv; |
79072805 LW |
1227 | MAGIC* magic; |
1228 | HV* stash; | |
1229 | ||
f130fd45 NIS |
1230 | if (mt != SVt_PV && SvREADONLY(sv) && SvFAKE(sv)) { |
1231 | sv_force_normal(sv); | |
1232 | } | |
1233 | ||
79072805 LW |
1234 | if (SvTYPE(sv) == mt) |
1235 | return TRUE; | |
1236 | ||
a5f75d66 AD |
1237 | if (mt < SVt_PVIV) |
1238 | (void)SvOOK_off(sv); | |
1239 | ||
79072805 LW |
1240 | switch (SvTYPE(sv)) { |
1241 | case SVt_NULL: | |
1242 | pv = 0; | |
1243 | cur = 0; | |
1244 | len = 0; | |
1245 | iv = 0; | |
1246 | nv = 0.0; | |
1247 | magic = 0; | |
1248 | stash = 0; | |
1249 | break; | |
79072805 LW |
1250 | case SVt_IV: |
1251 | pv = 0; | |
1252 | cur = 0; | |
1253 | len = 0; | |
463ee0b2 | 1254 | iv = SvIVX(sv); |
65202027 | 1255 | nv = (NV)SvIVX(sv); |
79072805 LW |
1256 | del_XIV(SvANY(sv)); |
1257 | magic = 0; | |
1258 | stash = 0; | |
ed6116ce | 1259 | if (mt == SVt_NV) |
463ee0b2 | 1260 | mt = SVt_PVNV; |
ed6116ce LW |
1261 | else if (mt < SVt_PVIV) |
1262 | mt = SVt_PVIV; | |
79072805 LW |
1263 | break; |
1264 | case SVt_NV: | |
1265 | pv = 0; | |
1266 | cur = 0; | |
1267 | len = 0; | |
463ee0b2 | 1268 | nv = SvNVX(sv); |
1bd302c3 | 1269 | iv = I_V(nv); |
79072805 LW |
1270 | magic = 0; |
1271 | stash = 0; | |
1272 | del_XNV(SvANY(sv)); | |
1273 | SvANY(sv) = 0; | |
ed6116ce | 1274 | if (mt < SVt_PVNV) |
79072805 LW |
1275 | mt = SVt_PVNV; |
1276 | break; | |
ed6116ce LW |
1277 | case SVt_RV: |
1278 | pv = (char*)SvRV(sv); | |
1279 | cur = 0; | |
1280 | len = 0; | |
56431972 RB |
1281 | iv = PTR2IV(pv); |
1282 | nv = PTR2NV(pv); | |
ed6116ce LW |
1283 | del_XRV(SvANY(sv)); |
1284 | magic = 0; | |
1285 | stash = 0; | |
1286 | break; | |
79072805 | 1287 | case SVt_PV: |
463ee0b2 | 1288 | pv = SvPVX(sv); |
79072805 LW |
1289 | cur = SvCUR(sv); |
1290 | len = SvLEN(sv); | |
1291 | iv = 0; | |
1292 | nv = 0.0; | |
1293 | magic = 0; | |
1294 | stash = 0; | |
1295 | del_XPV(SvANY(sv)); | |
748a9306 LW |
1296 | if (mt <= SVt_IV) |
1297 | mt = SVt_PVIV; | |
1298 | else if (mt == SVt_NV) | |
1299 | mt = SVt_PVNV; | |
79072805 LW |
1300 | break; |
1301 | case SVt_PVIV: | |
463ee0b2 | 1302 | pv = SvPVX(sv); |
79072805 LW |
1303 | cur = SvCUR(sv); |
1304 | len = SvLEN(sv); | |
463ee0b2 | 1305 | iv = SvIVX(sv); |
79072805 LW |
1306 | nv = 0.0; |
1307 | magic = 0; | |
1308 | stash = 0; | |
1309 | del_XPVIV(SvANY(sv)); | |
1310 | break; | |
1311 | case SVt_PVNV: | |
463ee0b2 | 1312 | pv = SvPVX(sv); |
79072805 LW |
1313 | cur = SvCUR(sv); |
1314 | len = SvLEN(sv); | |
463ee0b2 LW |
1315 | iv = SvIVX(sv); |
1316 | nv = SvNVX(sv); | |
79072805 LW |
1317 | magic = 0; |
1318 | stash = 0; | |
1319 | del_XPVNV(SvANY(sv)); | |
1320 | break; | |
1321 | case SVt_PVMG: | |
463ee0b2 | 1322 | pv = SvPVX(sv); |
79072805 LW |
1323 | cur = SvCUR(sv); |
1324 | len = SvLEN(sv); | |
463ee0b2 LW |
1325 | iv = SvIVX(sv); |
1326 | nv = SvNVX(sv); | |
79072805 LW |
1327 | magic = SvMAGIC(sv); |
1328 | stash = SvSTASH(sv); | |
1329 | del_XPVMG(SvANY(sv)); | |
1330 | break; | |
1331 | default: | |
cea2e8a9 | 1332 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1333 | } |
1334 | ||
1335 | switch (mt) { | |
1336 | case SVt_NULL: | |
cea2e8a9 | 1337 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1338 | case SVt_IV: |
1339 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 1340 | SvIVX(sv) = iv; |
79072805 LW |
1341 | break; |
1342 | case SVt_NV: | |
1343 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 1344 | SvNVX(sv) = nv; |
79072805 | 1345 | break; |
ed6116ce LW |
1346 | case SVt_RV: |
1347 | SvANY(sv) = new_XRV(); | |
1348 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 1349 | break; |
79072805 LW |
1350 | case SVt_PV: |
1351 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 1352 | SvPVX(sv) = pv; |
79072805 LW |
1353 | SvCUR(sv) = cur; |
1354 | SvLEN(sv) = len; | |
1355 | break; | |
1356 | case SVt_PVIV: | |
1357 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 1358 | SvPVX(sv) = pv; |
79072805 LW |
1359 | SvCUR(sv) = cur; |
1360 | SvLEN(sv) = len; | |
463ee0b2 | 1361 | SvIVX(sv) = iv; |
79072805 | 1362 | if (SvNIOK(sv)) |
a0d0e21e | 1363 | (void)SvIOK_on(sv); |
79072805 LW |
1364 | SvNOK_off(sv); |
1365 | break; | |
1366 | case SVt_PVNV: | |
1367 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 1368 | SvPVX(sv) = pv; |
79072805 LW |
1369 | SvCUR(sv) = cur; |
1370 | SvLEN(sv) = len; | |
463ee0b2 LW |
1371 | SvIVX(sv) = iv; |
1372 | SvNVX(sv) = nv; | |
79072805 LW |
1373 | break; |
1374 | case SVt_PVMG: | |
1375 | SvANY(sv) = new_XPVMG(); | |
463ee0b2 | 1376 | SvPVX(sv) = pv; |
79072805 LW |
1377 | SvCUR(sv) = cur; |
1378 | SvLEN(sv) = len; | |
463ee0b2 LW |
1379 | SvIVX(sv) = iv; |
1380 | SvNVX(sv) = nv; | |
79072805 LW |
1381 | SvMAGIC(sv) = magic; |
1382 | SvSTASH(sv) = stash; | |
1383 | break; | |
1384 | case SVt_PVLV: | |
1385 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 1386 | SvPVX(sv) = pv; |
79072805 LW |
1387 | SvCUR(sv) = cur; |
1388 | SvLEN(sv) = len; | |
463ee0b2 LW |
1389 | SvIVX(sv) = iv; |
1390 | SvNVX(sv) = nv; | |
79072805 LW |
1391 | SvMAGIC(sv) = magic; |
1392 | SvSTASH(sv) = stash; | |
1393 | LvTARGOFF(sv) = 0; | |
1394 | LvTARGLEN(sv) = 0; | |
1395 | LvTARG(sv) = 0; | |
1396 | LvTYPE(sv) = 0; | |
1397 | break; | |
1398 | case SVt_PVAV: | |
1399 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
1400 | if (pv) |
1401 | Safefree(pv); | |
2304df62 | 1402 | SvPVX(sv) = 0; |
d1bf51dd | 1403 | AvMAX(sv) = -1; |
93965878 | 1404 | AvFILLp(sv) = -1; |
463ee0b2 LW |
1405 | SvIVX(sv) = 0; |
1406 | SvNVX(sv) = 0.0; | |
1407 | SvMAGIC(sv) = magic; | |
1408 | SvSTASH(sv) = stash; | |
1409 | AvALLOC(sv) = 0; | |
79072805 LW |
1410 | AvARYLEN(sv) = 0; |
1411 | AvFLAGS(sv) = 0; | |
1412 | break; | |
1413 | case SVt_PVHV: | |
1414 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1415 | if (pv) |
1416 | Safefree(pv); | |
1417 | SvPVX(sv) = 0; | |
1418 | HvFILL(sv) = 0; | |
1419 | HvMAX(sv) = 0; | |
1420 | HvKEYS(sv) = 0; | |
1421 | SvNVX(sv) = 0.0; | |
79072805 LW |
1422 | SvMAGIC(sv) = magic; |
1423 | SvSTASH(sv) = stash; | |
79072805 LW |
1424 | HvRITER(sv) = 0; |
1425 | HvEITER(sv) = 0; | |
1426 | HvPMROOT(sv) = 0; | |
1427 | HvNAME(sv) = 0; | |
79072805 LW |
1428 | break; |
1429 | case SVt_PVCV: | |
1430 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1431 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 1432 | SvPVX(sv) = pv; |
79072805 LW |
1433 | SvCUR(sv) = cur; |
1434 | SvLEN(sv) = len; | |
463ee0b2 LW |
1435 | SvIVX(sv) = iv; |
1436 | SvNVX(sv) = nv; | |
79072805 LW |
1437 | SvMAGIC(sv) = magic; |
1438 | SvSTASH(sv) = stash; | |
79072805 LW |
1439 | break; |
1440 | case SVt_PVGV: | |
1441 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 1442 | SvPVX(sv) = pv; |
79072805 LW |
1443 | SvCUR(sv) = cur; |
1444 | SvLEN(sv) = len; | |
463ee0b2 LW |
1445 | SvIVX(sv) = iv; |
1446 | SvNVX(sv) = nv; | |
79072805 LW |
1447 | SvMAGIC(sv) = magic; |
1448 | SvSTASH(sv) = stash; | |
93a17b20 | 1449 | GvGP(sv) = 0; |
79072805 LW |
1450 | GvNAME(sv) = 0; |
1451 | GvNAMELEN(sv) = 0; | |
1452 | GvSTASH(sv) = 0; | |
a5f75d66 | 1453 | GvFLAGS(sv) = 0; |
79072805 LW |
1454 | break; |
1455 | case SVt_PVBM: | |
1456 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 1457 | SvPVX(sv) = pv; |
79072805 LW |
1458 | SvCUR(sv) = cur; |
1459 | SvLEN(sv) = len; | |
463ee0b2 LW |
1460 | SvIVX(sv) = iv; |
1461 | SvNVX(sv) = nv; | |
79072805 LW |
1462 | SvMAGIC(sv) = magic; |
1463 | SvSTASH(sv) = stash; | |
1464 | BmRARE(sv) = 0; | |
1465 | BmUSEFUL(sv) = 0; | |
1466 | BmPREVIOUS(sv) = 0; | |
1467 | break; | |
1468 | case SVt_PVFM: | |
1469 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1470 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 1471 | SvPVX(sv) = pv; |
79072805 LW |
1472 | SvCUR(sv) = cur; |
1473 | SvLEN(sv) = len; | |
463ee0b2 LW |
1474 | SvIVX(sv) = iv; |
1475 | SvNVX(sv) = nv; | |
79072805 LW |
1476 | SvMAGIC(sv) = magic; |
1477 | SvSTASH(sv) = stash; | |
79072805 | 1478 | break; |
8990e307 LW |
1479 | case SVt_PVIO: |
1480 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1481 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
1482 | SvPVX(sv) = pv; |
1483 | SvCUR(sv) = cur; | |
1484 | SvLEN(sv) = len; | |
1485 | SvIVX(sv) = iv; | |
1486 | SvNVX(sv) = nv; | |
1487 | SvMAGIC(sv) = magic; | |
1488 | SvSTASH(sv) = stash; | |
85e6fe83 | 1489 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1490 | break; |
1491 | } | |
1492 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
1493 | SvFLAGS(sv) |= mt; | |
79072805 LW |
1494 | return TRUE; |
1495 | } | |
1496 | ||
645c22ef DM |
1497 | /* |
1498 | =for apidoc sv_backoff | |
1499 | ||
1500 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1501 | wrapper instead. | |
1502 | ||
1503 | =cut | |
1504 | */ | |
1505 | ||
79072805 | 1506 | int |
864dbfa3 | 1507 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1508 | { |
1509 | assert(SvOOK(sv)); | |
463ee0b2 LW |
1510 | if (SvIVX(sv)) { |
1511 | char *s = SvPVX(sv); | |
1512 | SvLEN(sv) += SvIVX(sv); | |
1513 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 1514 | SvIV_set(sv, 0); |
463ee0b2 | 1515 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1516 | } |
1517 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1518 | return 0; |
79072805 LW |
1519 | } |
1520 | ||
954c1994 GS |
1521 | /* |
1522 | =for apidoc sv_grow | |
1523 | ||
645c22ef DM |
1524 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1525 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1526 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1527 | |
1528 | =cut | |
1529 | */ | |
1530 | ||
79072805 | 1531 | char * |
864dbfa3 | 1532 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1533 | { |
1534 | register char *s; | |
1535 | ||
55497cff | 1536 | #ifdef HAS_64K_LIMIT |
79072805 | 1537 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1538 | PerlIO_printf(Perl_debug_log, |
1539 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1540 | my_exit(1); |
1541 | } | |
55497cff | 1542 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1543 | if (SvROK(sv)) |
1544 | sv_unref(sv); | |
79072805 LW |
1545 | if (SvTYPE(sv) < SVt_PV) { |
1546 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 1547 | s = SvPVX(sv); |
79072805 LW |
1548 | } |
1549 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1550 | sv_backoff(sv); | |
463ee0b2 | 1551 | s = SvPVX(sv); |
79072805 LW |
1552 | if (newlen > SvLEN(sv)) |
1553 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1554 | #ifdef HAS_64K_LIMIT |
1555 | if (newlen >= 0x10000) | |
1556 | newlen = 0xFFFF; | |
1557 | #endif | |
79072805 LW |
1558 | } |
1559 | else | |
463ee0b2 | 1560 | s = SvPVX(sv); |
79072805 | 1561 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 1562 | if (SvLEN(sv) && s) { |
f5a32c7f | 1563 | #if defined(MYMALLOC) && !defined(LEAKTEST) |
8d6dde3e IZ |
1564 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
1565 | if (newlen <= l) { | |
1566 | SvLEN_set(sv, l); | |
1567 | return s; | |
1568 | } else | |
c70c8a0a | 1569 | #endif |
79072805 | 1570 | Renew(s,newlen,char); |
8d6dde3e | 1571 | } |
4e83176d | 1572 | else { |
ee5f0761 AMS |
1573 | /* sv_force_normal_flags() must not try to unshare the new |
1574 | PVX we allocate below. AMS 20010713 */ | |
4e83176d | 1575 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
4e83176d AMS |
1576 | SvFAKE_off(sv); |
1577 | SvREADONLY_off(sv); | |
4e83176d AMS |
1578 | } |
1579 | New(703, s, newlen, char); | |
1580 | } | |
79072805 LW |
1581 | SvPV_set(sv, s); |
1582 | SvLEN_set(sv, newlen); | |
1583 | } | |
1584 | return s; | |
1585 | } | |
1586 | ||
954c1994 GS |
1587 | /* |
1588 | =for apidoc sv_setiv | |
1589 | ||
645c22ef DM |
1590 | Copies an integer into the given SV, upgrading first if necessary. |
1591 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1592 | |
1593 | =cut | |
1594 | */ | |
1595 | ||
79072805 | 1596 | void |
864dbfa3 | 1597 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1598 | { |
2213622d | 1599 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
1600 | switch (SvTYPE(sv)) { |
1601 | case SVt_NULL: | |
79072805 | 1602 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1603 | break; |
1604 | case SVt_NV: | |
1605 | sv_upgrade(sv, SVt_PVNV); | |
1606 | break; | |
ed6116ce | 1607 | case SVt_RV: |
463ee0b2 | 1608 | case SVt_PV: |
79072805 | 1609 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1610 | break; |
a0d0e21e LW |
1611 | |
1612 | case SVt_PVGV: | |
a0d0e21e LW |
1613 | case SVt_PVAV: |
1614 | case SVt_PVHV: | |
1615 | case SVt_PVCV: | |
1616 | case SVt_PVFM: | |
1617 | case SVt_PVIO: | |
411caa50 | 1618 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
53e06cf0 | 1619 | OP_DESC(PL_op)); |
463ee0b2 | 1620 | } |
a0d0e21e | 1621 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1622 | SvIVX(sv) = i; |
463ee0b2 | 1623 | SvTAINT(sv); |
79072805 LW |
1624 | } |
1625 | ||
954c1994 GS |
1626 | /* |
1627 | =for apidoc sv_setiv_mg | |
1628 | ||
1629 | Like C<sv_setiv>, but also handles 'set' magic. | |
1630 | ||
1631 | =cut | |
1632 | */ | |
1633 | ||
79072805 | 1634 | void |
864dbfa3 | 1635 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1636 | { |
1637 | sv_setiv(sv,i); | |
1638 | SvSETMAGIC(sv); | |
1639 | } | |
1640 | ||
954c1994 GS |
1641 | /* |
1642 | =for apidoc sv_setuv | |
1643 | ||
645c22ef DM |
1644 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1645 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1646 | |
1647 | =cut | |
1648 | */ | |
1649 | ||
ef50df4b | 1650 | void |
864dbfa3 | 1651 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1652 | { |
55ada374 NC |
1653 | /* With these two if statements: |
1654 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1655 | |
55ada374 NC |
1656 | without |
1657 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1658 | |
55ada374 NC |
1659 | If you wish to remove them, please benchmark to see what the effect is |
1660 | */ | |
28e5dec8 JH |
1661 | if (u <= (UV)IV_MAX) { |
1662 | sv_setiv(sv, (IV)u); | |
1663 | return; | |
1664 | } | |
25da4f38 IZ |
1665 | sv_setiv(sv, 0); |
1666 | SvIsUV_on(sv); | |
1667 | SvUVX(sv) = u; | |
55497cff | 1668 | } |
1669 | ||
954c1994 GS |
1670 | /* |
1671 | =for apidoc sv_setuv_mg | |
1672 | ||
1673 | Like C<sv_setuv>, but also handles 'set' magic. | |
1674 | ||
1675 | =cut | |
1676 | */ | |
1677 | ||
55497cff | 1678 | void |
864dbfa3 | 1679 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1680 | { |
55ada374 NC |
1681 | /* With these two if statements: |
1682 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1683 | |
55ada374 NC |
1684 | without |
1685 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1686 | |
55ada374 NC |
1687 | If you wish to remove them, please benchmark to see what the effect is |
1688 | */ | |
28e5dec8 JH |
1689 | if (u <= (UV)IV_MAX) { |
1690 | sv_setiv(sv, (IV)u); | |
1691 | } else { | |
1692 | sv_setiv(sv, 0); | |
1693 | SvIsUV_on(sv); | |
1694 | sv_setuv(sv,u); | |
1695 | } | |
ef50df4b GS |
1696 | SvSETMAGIC(sv); |
1697 | } | |
1698 | ||
954c1994 GS |
1699 | /* |
1700 | =for apidoc sv_setnv | |
1701 | ||
645c22ef DM |
1702 | Copies a double into the given SV, upgrading first if necessary. |
1703 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1704 | |
1705 | =cut | |
1706 | */ | |
1707 | ||
ef50df4b | 1708 | void |
65202027 | 1709 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1710 | { |
2213622d | 1711 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1712 | switch (SvTYPE(sv)) { |
1713 | case SVt_NULL: | |
1714 | case SVt_IV: | |
79072805 | 1715 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1716 | break; |
a0d0e21e LW |
1717 | case SVt_RV: |
1718 | case SVt_PV: | |
1719 | case SVt_PVIV: | |
79072805 | 1720 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1721 | break; |
827b7e14 | 1722 | |
a0d0e21e | 1723 | case SVt_PVGV: |
a0d0e21e LW |
1724 | case SVt_PVAV: |
1725 | case SVt_PVHV: | |
1726 | case SVt_PVCV: | |
1727 | case SVt_PVFM: | |
1728 | case SVt_PVIO: | |
411caa50 | 1729 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
53e06cf0 | 1730 | OP_NAME(PL_op)); |
79072805 | 1731 | } |
463ee0b2 | 1732 | SvNVX(sv) = num; |
a0d0e21e | 1733 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1734 | SvTAINT(sv); |
79072805 LW |
1735 | } |
1736 | ||
954c1994 GS |
1737 | /* |
1738 | =for apidoc sv_setnv_mg | |
1739 | ||
1740 | Like C<sv_setnv>, but also handles 'set' magic. | |
1741 | ||
1742 | =cut | |
1743 | */ | |
1744 | ||
ef50df4b | 1745 | void |
65202027 | 1746 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1747 | { |
1748 | sv_setnv(sv,num); | |
1749 | SvSETMAGIC(sv); | |
1750 | } | |
1751 | ||
645c22ef DM |
1752 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1753 | * printable version of the offending string | |
1754 | */ | |
1755 | ||
76e3520e | 1756 | STATIC void |
cea2e8a9 | 1757 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e LW |
1758 | { |
1759 | char tmpbuf[64]; | |
1760 | char *d = tmpbuf; | |
dc28f22b GA |
1761 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; |
1762 | /* each *s can expand to 4 chars + "...\0", | |
1763 | i.e. need room for 8 chars */ | |
a0d0e21e | 1764 | |
59bb5845 RB |
1765 | char *s, *end; |
1766 | for (s = SvPVX(sv), end = s + SvCUR(sv); s < end && d < limit; s++) { | |
bbce6d69 | 1767 | int ch = *s & 0xFF; |
1768 | if (ch & 128 && !isPRINT_LC(ch)) { | |
a0d0e21e LW |
1769 | *d++ = 'M'; |
1770 | *d++ = '-'; | |
1771 | ch &= 127; | |
1772 | } | |
bbce6d69 | 1773 | if (ch == '\n') { |
1774 | *d++ = '\\'; | |
1775 | *d++ = 'n'; | |
1776 | } | |
1777 | else if (ch == '\r') { | |
1778 | *d++ = '\\'; | |
1779 | *d++ = 'r'; | |
1780 | } | |
1781 | else if (ch == '\f') { | |
1782 | *d++ = '\\'; | |
1783 | *d++ = 'f'; | |
1784 | } | |
1785 | else if (ch == '\\') { | |
1786 | *d++ = '\\'; | |
1787 | *d++ = '\\'; | |
1788 | } | |
59bb5845 RB |
1789 | else if (ch == '\0') { |
1790 | *d++ = '\\'; | |
1791 | *d++ = '0'; | |
1792 | } | |
bbce6d69 | 1793 | else if (isPRINT_LC(ch)) |
a0d0e21e LW |
1794 | *d++ = ch; |
1795 | else { | |
1796 | *d++ = '^'; | |
bbce6d69 | 1797 | *d++ = toCTRL(ch); |
a0d0e21e LW |
1798 | } |
1799 | } | |
e71c6625 | 1800 | if (s < end) { |
a0d0e21e LW |
1801 | *d++ = '.'; |
1802 | *d++ = '.'; | |
1803 | *d++ = '.'; | |
1804 | } | |
1805 | *d = '\0'; | |
1806 | ||
533c011a | 1807 | if (PL_op) |
42d38218 MS |
1808 | Perl_warner(aTHX_ WARN_NUMERIC, |
1809 | "Argument \"%s\" isn't numeric in %s", tmpbuf, | |
53e06cf0 | 1810 | OP_DESC(PL_op)); |
a0d0e21e | 1811 | else |
42d38218 MS |
1812 | Perl_warner(aTHX_ WARN_NUMERIC, |
1813 | "Argument \"%s\" isn't numeric", tmpbuf); | |
a0d0e21e LW |
1814 | } |
1815 | ||
c2988b20 NC |
1816 | /* |
1817 | =for apidoc looks_like_number | |
1818 | ||
645c22ef DM |
1819 | Test if the content of an SV looks like a number (or is a number). |
1820 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1821 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1822 | |
1823 | =cut | |
1824 | */ | |
1825 | ||
1826 | I32 | |
1827 | Perl_looks_like_number(pTHX_ SV *sv) | |
1828 | { | |
1829 | register char *sbegin; | |
1830 | STRLEN len; | |
1831 | ||
1832 | if (SvPOK(sv)) { | |
1833 | sbegin = SvPVX(sv); | |
1834 | len = SvCUR(sv); | |
1835 | } | |
1836 | else if (SvPOKp(sv)) | |
1837 | sbegin = SvPV(sv, len); | |
1838 | else | |
1839 | return 1; /* Historic. Wrong? */ | |
1840 | return grok_number(sbegin, len, NULL); | |
1841 | } | |
25da4f38 IZ |
1842 | |
1843 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1844 | until proven guilty, assume that things are not that bad... */ | |
1845 | ||
645c22ef DM |
1846 | /* |
1847 | NV_PRESERVES_UV: | |
1848 | ||
1849 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
1850 | an IV (an assumption perl has been based on to date) it becomes necessary |
1851 | to remove the assumption that the NV always carries enough precision to | |
1852 | recreate the IV whenever needed, and that the NV is the canonical form. | |
1853 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 1854 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
1855 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
1856 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
1857 | conversion where precision was lost and IV/UV/NV slots that have a | |
1858 | valid conversion which has lost no precision | |
645c22ef | 1859 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
1860 | would lose precision, the precise conversion (or differently |
1861 | imprecise conversion) is also performed and cached, to prevent | |
1862 | requests for different numeric formats on the same SV causing | |
1863 | lossy conversion chains. (lossless conversion chains are perfectly | |
1864 | acceptable (still)) | |
1865 | ||
1866 | ||
1867 | flags are used: | |
1868 | SvIOKp is true if the IV slot contains a valid value | |
1869 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
1870 | SvNOKp is true if the NV slot contains a valid value | |
1871 | SvNOK is true only if the NV value is accurate | |
1872 | ||
1873 | so | |
645c22ef | 1874 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
1875 | IV(or UV) would lose accuracy over a direct conversion from PV to |
1876 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
1877 | SV as IOK NOKp (ie not NOK). | |
1878 | ||
645c22ef | 1879 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
1880 | NV would lose accuracy over a direct conversion from PV to NV. If it |
1881 | would, cache both conversions, flag similarly. | |
1882 | ||
1883 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
1884 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
1885 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
1886 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 1887 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 1888 | |
645c22ef DM |
1889 | The benefit of this is that operations such as pp_add know that if |
1890 | SvIOK is true for both left and right operands, then integer addition | |
1891 | can be used instead of floating point (for cases where the result won't | |
1892 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
1893 | loss of precision compared with integer addition. |
1894 | ||
1895 | * making IV and NV equal status should make maths accurate on 64 bit | |
1896 | platforms | |
1897 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 1898 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
1899 | looking for SvIOK and checking for overflow will not outweigh the |
1900 | fp to integer speedup) | |
1901 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
1902 | values, as the change from SvIOK to SvIOKp will cause a call into | |
1903 | sv_2iv each time rather than a macro access direct to the IV slot | |
1904 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 1905 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
1906 | |
1907 | #################################################################### | |
645c22ef DM |
1908 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
1909 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
1910 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
1911 | #################################################################### |
1912 | ||
645c22ef | 1913 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
1914 | performance ratio. |
1915 | */ | |
1916 | ||
1917 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
1918 | # define IS_NUMBER_UNDERFLOW_IV 1 |
1919 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
1920 | # define IS_NUMBER_IV_AND_UV 2 | |
1921 | # define IS_NUMBER_OVERFLOW_IV 4 | |
1922 | # define IS_NUMBER_OVERFLOW_UV 5 | |
1923 | ||
1924 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
1925 | |
1926 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
1927 | STATIC int | |
645c22ef | 1928 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 1929 | { |
159fae86 | 1930 | 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 |
1931 | if (SvNVX(sv) < (NV)IV_MIN) { |
1932 | (void)SvIOKp_on(sv); | |
1933 | (void)SvNOK_on(sv); | |
1934 | SvIVX(sv) = IV_MIN; | |
1935 | return IS_NUMBER_UNDERFLOW_IV; | |
1936 | } | |
1937 | if (SvNVX(sv) > (NV)UV_MAX) { | |
1938 | (void)SvIOKp_on(sv); | |
1939 | (void)SvNOK_on(sv); | |
1940 | SvIsUV_on(sv); | |
1941 | SvUVX(sv) = UV_MAX; | |
1942 | return IS_NUMBER_OVERFLOW_UV; | |
1943 | } | |
c2988b20 NC |
1944 | (void)SvIOKp_on(sv); |
1945 | (void)SvNOK_on(sv); | |
1946 | /* Can't use strtol etc to convert this string. (See truth table in | |
1947 | sv_2iv */ | |
1948 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
1949 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1950 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
1951 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
1952 | } else { | |
1953 | /* Integer is imprecise. NOK, IOKp */ | |
1954 | } | |
1955 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
1956 | } | |
1957 | SvIsUV_on(sv); | |
1958 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1959 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
1960 | if (SvUVX(sv) == UV_MAX) { | |
1961 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
1962 | possibly be preserved by NV. Hence, it must be overflow. | |
1963 | NOK, IOKp */ | |
1964 | return IS_NUMBER_OVERFLOW_UV; | |
1965 | } | |
1966 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
1967 | } else { | |
1968 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 1969 | } |
c2988b20 | 1970 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 1971 | } |
645c22ef DM |
1972 | #endif /* !NV_PRESERVES_UV*/ |
1973 | ||
1974 | /* | |
1975 | =for apidoc sv_2iv | |
1976 | ||
1977 | Return the integer value of an SV, doing any necessary string conversion, | |
1978 | magic etc. Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
1979 | ||
1980 | =cut | |
1981 | */ | |
28e5dec8 | 1982 | |
a0d0e21e | 1983 | IV |
864dbfa3 | 1984 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
1985 | { |
1986 | if (!sv) | |
1987 | return 0; | |
8990e307 | 1988 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1989 | mg_get(sv); |
1990 | if (SvIOKp(sv)) | |
1991 | return SvIVX(sv); | |
748a9306 | 1992 | if (SvNOKp(sv)) { |
25da4f38 | 1993 | return I_V(SvNVX(sv)); |
748a9306 | 1994 | } |
36477c24 | 1995 | if (SvPOKp(sv) && SvLEN(sv)) |
1996 | return asIV(sv); | |
3fe9a6f1 | 1997 | if (!SvROK(sv)) { |
d008e5eb | 1998 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 1999 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2000 | report_uninit(); |
c6ee37c5 | 2001 | } |
36477c24 | 2002 | return 0; |
3fe9a6f1 | 2003 | } |
463ee0b2 | 2004 | } |
ed6116ce | 2005 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2006 | if (SvROK(sv)) { |
a0d0e21e | 2007 | SV* tmpstr; |
1554e226 | 2008 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2009 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2010 | return SvIV(tmpstr); |
56431972 | 2011 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2012 | } |
47deb5e7 NIS |
2013 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2014 | sv_force_normal(sv); | |
2015 | } | |
0336b60e | 2016 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2017 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2018 | report_uninit(); |
ed6116ce LW |
2019 | return 0; |
2020 | } | |
79072805 | 2021 | } |
25da4f38 IZ |
2022 | if (SvIOKp(sv)) { |
2023 | if (SvIsUV(sv)) { | |
2024 | return (IV)(SvUVX(sv)); | |
2025 | } | |
2026 | else { | |
2027 | return SvIVX(sv); | |
2028 | } | |
463ee0b2 | 2029 | } |
748a9306 | 2030 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2031 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2032 | * without also getting a cached IV/UV from it at the same time | |
2033 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2034 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2035 | |
2036 | if (SvTYPE(sv) == SVt_NV) | |
2037 | sv_upgrade(sv, SVt_PVNV); | |
2038 | ||
28e5dec8 JH |
2039 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2040 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2041 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2042 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2043 | cases go to UV */ | |
2044 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
748a9306 | 2045 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2046 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2047 | #ifndef NV_PRESERVES_UV | |
2048 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2049 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2050 | /* Don't flag it as "accurately an integer" if the number | |
2051 | came from a (by definition imprecise) NV operation, and | |
2052 | we're outside the range of NV integer precision */ | |
2053 | #endif | |
2054 | ) { | |
2055 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2056 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2057 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2058 | PTR2UV(sv), |
2059 | SvNVX(sv), | |
2060 | SvIVX(sv))); | |
2061 | ||
2062 | } else { | |
2063 | /* IV not precise. No need to convert from PV, as NV | |
2064 | conversion would already have cached IV if it detected | |
2065 | that PV->IV would be better than PV->NV->IV | |
2066 | flags already correct - don't set public IOK. */ | |
2067 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2068 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2069 | PTR2UV(sv), |
2070 | SvNVX(sv), | |
2071 | SvIVX(sv))); | |
2072 | } | |
2073 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2074 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2075 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2076 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2077 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2078 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2079 | Hopefully for 2s complement IV_MIN is something like | |
2080 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2081 | } |
25da4f38 | 2082 | else { |
ff68c719 | 2083 | SvUVX(sv) = U_V(SvNVX(sv)); |
28e5dec8 JH |
2084 | if ( |
2085 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2086 | #ifndef NV_PRESERVES_UV | |
2087 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2088 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2089 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2090 | /* Don't flag it as "accurately an integer" if the number | |
2091 | came from a (by definition imprecise) NV operation, and | |
2092 | we're outside the range of NV integer precision */ | |
2093 | #endif | |
2094 | ) | |
2095 | SvIOK_on(sv); | |
25da4f38 IZ |
2096 | SvIsUV_on(sv); |
2097 | ret_iv_max: | |
1c846c1f | 2098 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2099 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2100 | PTR2UV(sv), |
57def98f JH |
2101 | SvUVX(sv), |
2102 | SvUVX(sv))); | |
25da4f38 IZ |
2103 | return (IV)SvUVX(sv); |
2104 | } | |
748a9306 LW |
2105 | } |
2106 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2107 | UV value; |
2108 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2109 | /* We want to avoid a possible problem when we cache an IV which |
2110 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2111 | the same as the direct translation of the initial string |
2112 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2113 | be careful to ensure that the value with the .456 is around if the | |
2114 | NV value is requested in the future). | |
1c846c1f | 2115 | |
25da4f38 IZ |
2116 | This means that if we cache such an IV, we need to cache the |
2117 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2118 | cache the NV if we are sure it's not needed. |
25da4f38 | 2119 | */ |
16b7a9a4 | 2120 | |
c2988b20 NC |
2121 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2122 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2123 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2124 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2125 | if (SvTYPE(sv) < SVt_PVIV) |
2126 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2127 | (void)SvIOK_on(sv); |
c2988b20 NC |
2128 | } else if (SvTYPE(sv) < SVt_PVNV) |
2129 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2130 | |
c2988b20 NC |
2131 | /* If NV preserves UV then we only use the UV value if we know that |
2132 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2133 | then the value returned may have more precision than atof() will | |
2134 | return, even though value isn't perfectly accurate. */ | |
2135 | if ((numtype & (IS_NUMBER_IN_UV | |
2136 | #ifdef NV_PRESERVES_UV | |
2137 | | IS_NUMBER_NOT_INT | |
2138 | #endif | |
2139 | )) == IS_NUMBER_IN_UV) { | |
2140 | /* This won't turn off the public IOK flag if it was set above */ | |
2141 | (void)SvIOKp_on(sv); | |
2142 | ||
2143 | if (!(numtype & IS_NUMBER_NEG)) { | |
2144 | /* positive */; | |
2145 | if (value <= (UV)IV_MAX) { | |
2146 | SvIVX(sv) = (IV)value; | |
2147 | } else { | |
2148 | SvUVX(sv) = value; | |
2149 | SvIsUV_on(sv); | |
2150 | } | |
2151 | } else { | |
2152 | /* 2s complement assumption */ | |
2153 | if (value <= (UV)IV_MIN) { | |
2154 | SvIVX(sv) = -(IV)value; | |
2155 | } else { | |
2156 | /* Too negative for an IV. This is a double upgrade, but | |
2157 | I'm assuming it will be be rare. */ | |
2158 | if (SvTYPE(sv) < SVt_PVNV) | |
2159 | sv_upgrade(sv, SVt_PVNV); | |
2160 | SvNOK_on(sv); | |
2161 | SvIOK_off(sv); | |
2162 | SvIOKp_on(sv); | |
2163 | SvNVX(sv) = -(NV)value; | |
2164 | SvIVX(sv) = IV_MIN; | |
2165 | } | |
2166 | } | |
2167 | } | |
2168 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2169 | will be in the previous block to set the IV slot, and the next | |
2170 | block to set the NV slot. So no else here. */ | |
2171 | ||
2172 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2173 | != IS_NUMBER_IN_UV) { | |
2174 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
2175 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2176 | |
c2988b20 NC |
2177 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2178 | not_a_number(sv); | |
28e5dec8 | 2179 | |
65202027 | 2180 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2181 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2182 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2183 | #else |
c2988b20 NC |
2184 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%g)\n", |
2185 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2186 | #endif |
28e5dec8 JH |
2187 | |
2188 | ||
2189 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2190 | (void)SvIOKp_on(sv); |
2191 | (void)SvNOK_on(sv); | |
2192 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2193 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2194 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2195 | SvIOK_on(sv); | |
28e5dec8 | 2196 | } else { |
c2988b20 NC |
2197 | /* Integer is imprecise. NOK, IOKp */ |
2198 | } | |
2199 | /* UV will not work better than IV */ | |
2200 | } else { | |
2201 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2202 | SvIsUV_on(sv); | |
2203 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2204 | SvUVX(sv) = UV_MAX; | |
2205 | SvIsUV_on(sv); | |
2206 | } else { | |
2207 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2208 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ | |
2209 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2210 | SvIOK_on(sv); | |
28e5dec8 JH |
2211 | SvIsUV_on(sv); |
2212 | } else { | |
c2988b20 NC |
2213 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2214 | SvIsUV_on(sv); | |
28e5dec8 | 2215 | } |
28e5dec8 | 2216 | } |
c2988b20 NC |
2217 | goto ret_iv_max; |
2218 | } | |
28e5dec8 | 2219 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2220 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2221 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2222 | /* The IV slot will have been set from value returned by | |
2223 | grok_number above. The NV slot has just been set using | |
2224 | Atof. */ | |
560b0c46 | 2225 | SvNOK_on(sv); |
c2988b20 NC |
2226 | assert (SvIOKp(sv)); |
2227 | } else { | |
2228 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2229 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2230 | /* Small enough to preserve all bits. */ | |
2231 | (void)SvIOKp_on(sv); | |
2232 | SvNOK_on(sv); | |
2233 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2234 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2235 | SvIOK_on(sv); | |
2236 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2237 | this NV is in the preserved range, therefore: */ | |
2238 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2239 | < (UV)IV_MAX)) { | |
2240 | 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); | |
2241 | } | |
2242 | } else { | |
2243 | /* IN_UV NOT_INT | |
2244 | 0 0 already failed to read UV. | |
2245 | 0 1 already failed to read UV. | |
2246 | 1 0 you won't get here in this case. IV/UV | |
2247 | slot set, public IOK, Atof() unneeded. | |
2248 | 1 1 already read UV. | |
2249 | so there's no point in sv_2iuv_non_preserve() attempting | |
2250 | to use atol, strtol, strtoul etc. */ | |
2251 | if (sv_2iuv_non_preserve (sv, numtype) | |
2252 | >= IS_NUMBER_OVERFLOW_IV) | |
2253 | goto ret_iv_max; | |
2254 | } | |
2255 | } | |
28e5dec8 | 2256 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2257 | } |
28e5dec8 | 2258 | } else { |
599cee73 | 2259 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2260 | report_uninit(); |
25da4f38 IZ |
2261 | if (SvTYPE(sv) < SVt_IV) |
2262 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2263 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2264 | return 0; |
79072805 | 2265 | } |
1d7c1841 GS |
2266 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2267 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2268 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2269 | } |
2270 | ||
645c22ef DM |
2271 | /* |
2272 | =for apidoc sv_2uv | |
2273 | ||
2274 | Return the unsigned integer value of an SV, doing any necessary string | |
2275 | conversion, magic etc. Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> | |
2276 | macros. | |
2277 | ||
2278 | =cut | |
2279 | */ | |
2280 | ||
ff68c719 | 2281 | UV |
864dbfa3 | 2282 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 2283 | { |
2284 | if (!sv) | |
2285 | return 0; | |
2286 | if (SvGMAGICAL(sv)) { | |
2287 | mg_get(sv); | |
2288 | if (SvIOKp(sv)) | |
2289 | return SvUVX(sv); | |
2290 | if (SvNOKp(sv)) | |
2291 | return U_V(SvNVX(sv)); | |
36477c24 | 2292 | if (SvPOKp(sv) && SvLEN(sv)) |
2293 | return asUV(sv); | |
3fe9a6f1 | 2294 | if (!SvROK(sv)) { |
d008e5eb | 2295 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2296 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2297 | report_uninit(); |
c6ee37c5 | 2298 | } |
36477c24 | 2299 | return 0; |
3fe9a6f1 | 2300 | } |
ff68c719 | 2301 | } |
2302 | if (SvTHINKFIRST(sv)) { | |
2303 | if (SvROK(sv)) { | |
ff68c719 | 2304 | SV* tmpstr; |
1554e226 | 2305 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2306 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2307 | return SvUV(tmpstr); |
56431972 | 2308 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2309 | } |
8a818333 NIS |
2310 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2311 | sv_force_normal(sv); | |
2312 | } | |
0336b60e | 2313 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2314 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2315 | report_uninit(); |
ff68c719 | 2316 | return 0; |
2317 | } | |
2318 | } | |
25da4f38 IZ |
2319 | if (SvIOKp(sv)) { |
2320 | if (SvIsUV(sv)) { | |
2321 | return SvUVX(sv); | |
2322 | } | |
2323 | else { | |
2324 | return (UV)SvIVX(sv); | |
2325 | } | |
ff68c719 | 2326 | } |
2327 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2328 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2329 | * without also getting a cached IV/UV from it at the same time | |
2330 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2331 | * IV or UV at same time to avoid this. */ | |
2332 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2333 | ||
25da4f38 IZ |
2334 | if (SvTYPE(sv) == SVt_NV) |
2335 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2336 | |
2337 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2338 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
f7bbb42a | 2339 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2340 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2341 | #ifndef NV_PRESERVES_UV | |
2342 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2343 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2344 | /* Don't flag it as "accurately an integer" if the number | |
2345 | came from a (by definition imprecise) NV operation, and | |
2346 | we're outside the range of NV integer precision */ | |
2347 | #endif | |
2348 | ) { | |
2349 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2350 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2351 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2352 | PTR2UV(sv), |
2353 | SvNVX(sv), | |
2354 | SvIVX(sv))); | |
2355 | ||
2356 | } else { | |
2357 | /* IV not precise. No need to convert from PV, as NV | |
2358 | conversion would already have cached IV if it detected | |
2359 | that PV->IV would be better than PV->NV->IV | |
2360 | flags already correct - don't set public IOK. */ | |
2361 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2362 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2363 | PTR2UV(sv), |
2364 | SvNVX(sv), | |
2365 | SvIVX(sv))); | |
2366 | } | |
2367 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2368 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2369 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2370 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2371 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2372 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2373 | Hopefully for 2s complement IV_MIN is something like | |
2374 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2375 | } |
28e5dec8 JH |
2376 | else { |
2377 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2378 | if ( | |
2379 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2380 | #ifndef NV_PRESERVES_UV | |
2381 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2382 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2383 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2384 | /* Don't flag it as "accurately an integer" if the number | |
2385 | came from a (by definition imprecise) NV operation, and | |
2386 | we're outside the range of NV integer precision */ | |
2387 | #endif | |
2388 | ) | |
2389 | SvIOK_on(sv); | |
2390 | SvIsUV_on(sv); | |
1c846c1f | 2391 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2392 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2393 | PTR2UV(sv), |
28e5dec8 JH |
2394 | SvUVX(sv), |
2395 | SvUVX(sv))); | |
25da4f38 | 2396 | } |
ff68c719 | 2397 | } |
2398 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2399 | UV value; |
2400 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2401 | |
2402 | /* We want to avoid a possible problem when we cache a UV which | |
2403 | may be later translated to an NV, and the resulting NV is not | |
2404 | the translation of the initial data. | |
1c846c1f | 2405 | |
25da4f38 IZ |
2406 | This means that if we cache such a UV, we need to cache the |
2407 | NV as well. Moreover, we trade speed for space, and do not | |
2408 | cache the NV if not needed. | |
2409 | */ | |
16b7a9a4 | 2410 | |
c2988b20 NC |
2411 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2412 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2413 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2414 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2415 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2416 | sv_upgrade(sv, SVt_PVIV); |
2417 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2418 | } else if (SvTYPE(sv) < SVt_PVNV) |
2419 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2420 | |
c2988b20 NC |
2421 | /* If NV preserves UV then we only use the UV value if we know that |
2422 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2423 | then the value returned may have more precision than atof() will | |
2424 | return, even though it isn't accurate. */ | |
2425 | if ((numtype & (IS_NUMBER_IN_UV | |
2426 | #ifdef NV_PRESERVES_UV | |
2427 | | IS_NUMBER_NOT_INT | |
2428 | #endif | |
2429 | )) == IS_NUMBER_IN_UV) { | |
2430 | /* This won't turn off the public IOK flag if it was set above */ | |
2431 | (void)SvIOKp_on(sv); | |
2432 | ||
2433 | if (!(numtype & IS_NUMBER_NEG)) { | |
2434 | /* positive */; | |
2435 | if (value <= (UV)IV_MAX) { | |
2436 | SvIVX(sv) = (IV)value; | |
28e5dec8 JH |
2437 | } else { |
2438 | /* it didn't overflow, and it was positive. */ | |
c2988b20 | 2439 | SvUVX(sv) = value; |
28e5dec8 JH |
2440 | SvIsUV_on(sv); |
2441 | } | |
c2988b20 NC |
2442 | } else { |
2443 | /* 2s complement assumption */ | |
2444 | if (value <= (UV)IV_MIN) { | |
2445 | SvIVX(sv) = -(IV)value; | |
2446 | } else { | |
2447 | /* Too negative for an IV. This is a double upgrade, but | |
2448 | I'm assuming it will be be rare. */ | |
2449 | if (SvTYPE(sv) < SVt_PVNV) | |
2450 | sv_upgrade(sv, SVt_PVNV); | |
2451 | SvNOK_on(sv); | |
2452 | SvIOK_off(sv); | |
2453 | SvIOKp_on(sv); | |
2454 | SvNVX(sv) = -(NV)value; | |
2455 | SvIVX(sv) = IV_MIN; | |
2456 | } | |
2457 | } | |
2458 | } | |
2459 | ||
2460 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2461 | != IS_NUMBER_IN_UV) { | |
2462 | /* It wasn't an integer, or it overflowed the UV. */ | |
2463 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2464 | |
c2988b20 | 2465 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2466 | not_a_number(sv); |
2467 | ||
2468 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2469 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2470 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2471 | #else |
c2988b20 NC |
2472 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%g)\n", |
2473 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 JH |
2474 | #endif |
2475 | ||
2476 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2477 | (void)SvIOKp_on(sv); |
2478 | (void)SvNOK_on(sv); | |
2479 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2480 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2481 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2482 | SvIOK_on(sv); | |
2483 | } else { | |
2484 | /* Integer is imprecise. NOK, IOKp */ | |
2485 | } | |
2486 | /* UV will not work better than IV */ | |
2487 | } else { | |
2488 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2489 | SvIsUV_on(sv); | |
2490 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2491 | SvUVX(sv) = UV_MAX; | |
2492 | SvIsUV_on(sv); | |
2493 | } else { | |
2494 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2495 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs | |
2496 | NV preservse UV so can do correct comparison. */ | |
2497 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2498 | SvIOK_on(sv); | |
2499 | SvIsUV_on(sv); | |
2500 | } else { | |
2501 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2502 | SvIsUV_on(sv); | |
2503 | } | |
2504 | } | |
2505 | } | |
28e5dec8 | 2506 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2507 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2508 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2509 | /* The UV slot will have been set from value returned by | |
2510 | grok_number above. The NV slot has just been set using | |
2511 | Atof. */ | |
560b0c46 | 2512 | SvNOK_on(sv); |
c2988b20 NC |
2513 | assert (SvIOKp(sv)); |
2514 | } else { | |
2515 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2516 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2517 | /* Small enough to preserve all bits. */ | |
2518 | (void)SvIOKp_on(sv); | |
2519 | SvNOK_on(sv); | |
2520 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2521 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2522 | SvIOK_on(sv); | |
2523 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2524 | this NV is in the preserved range, therefore: */ | |
2525 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2526 | < (UV)IV_MAX)) { | |
2527 | 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); | |
2528 | } | |
2529 | } else | |
2530 | sv_2iuv_non_preserve (sv, numtype); | |
2531 | } | |
28e5dec8 | 2532 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2533 | } |
ff68c719 | 2534 | } |
2535 | else { | |
d008e5eb | 2536 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2537 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2538 | report_uninit(); |
c6ee37c5 | 2539 | } |
25da4f38 IZ |
2540 | if (SvTYPE(sv) < SVt_IV) |
2541 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2542 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2543 | return 0; |
2544 | } | |
25da4f38 | 2545 | |
1d7c1841 GS |
2546 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2547 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2548 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2549 | } |
2550 | ||
645c22ef DM |
2551 | /* |
2552 | =for apidoc sv_2nv | |
2553 | ||
2554 | Return the num value of an SV, doing any necessary string or integer | |
2555 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2556 | macros. | |
2557 | ||
2558 | =cut | |
2559 | */ | |
2560 | ||
65202027 | 2561 | NV |
864dbfa3 | 2562 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2563 | { |
2564 | if (!sv) | |
2565 | return 0.0; | |
8990e307 | 2566 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2567 | mg_get(sv); |
2568 | if (SvNOKp(sv)) | |
2569 | return SvNVX(sv); | |
a0d0e21e | 2570 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2571 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
2572 | !grok_number(SvPVX(sv), SvCUR(sv), NULL)) | |
a0d0e21e | 2573 | not_a_number(sv); |
097ee67d | 2574 | return Atof(SvPVX(sv)); |
a0d0e21e | 2575 | } |
25da4f38 | 2576 | if (SvIOKp(sv)) { |
1c846c1f | 2577 | if (SvIsUV(sv)) |
65202027 | 2578 | return (NV)SvUVX(sv); |
25da4f38 | 2579 | else |
65202027 | 2580 | return (NV)SvIVX(sv); |
25da4f38 | 2581 | } |
16d20bd9 | 2582 | if (!SvROK(sv)) { |
d008e5eb | 2583 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2584 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2585 | report_uninit(); |
c6ee37c5 | 2586 | } |
16d20bd9 AD |
2587 | return 0; |
2588 | } | |
463ee0b2 | 2589 | } |
ed6116ce | 2590 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2591 | if (SvROK(sv)) { |
a0d0e21e | 2592 | SV* tmpstr; |
1554e226 | 2593 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2594 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2595 | return SvNV(tmpstr); |
56431972 | 2596 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2597 | } |
8a818333 NIS |
2598 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2599 | sv_force_normal(sv); | |
2600 | } | |
0336b60e | 2601 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2602 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2603 | report_uninit(); |
ed6116ce LW |
2604 | return 0.0; |
2605 | } | |
79072805 LW |
2606 | } |
2607 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2608 | if (SvTYPE(sv) == SVt_IV) |
2609 | sv_upgrade(sv, SVt_PVNV); | |
2610 | else | |
2611 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2612 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2613 | DEBUG_c({ |
f93f4e46 | 2614 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2615 | PerlIO_printf(Perl_debug_log, |
2616 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2617 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2618 | RESTORE_NUMERIC_LOCAL(); |
2619 | }); | |
65202027 | 2620 | #else |
572bbb43 | 2621 | DEBUG_c({ |
f93f4e46 | 2622 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2623 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%g)\n", |
2624 | PTR2UV(sv), SvNVX(sv)); | |
097ee67d JH |
2625 | RESTORE_NUMERIC_LOCAL(); |
2626 | }); | |
572bbb43 | 2627 | #endif |
79072805 LW |
2628 | } |
2629 | else if (SvTYPE(sv) < SVt_PVNV) | |
2630 | sv_upgrade(sv, SVt_PVNV); | |
59d8ce62 NC |
2631 | if (SvNOKp(sv)) { |
2632 | return SvNVX(sv); | |
61604483 | 2633 | } |
59d8ce62 | 2634 | if (SvIOKp(sv)) { |
65202027 | 2635 | SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv); |
28e5dec8 JH |
2636 | #ifdef NV_PRESERVES_UV |
2637 | SvNOK_on(sv); | |
2638 | #else | |
2639 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2640 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2641 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2642 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2643 | SvNOK_on(sv); | |
2644 | else | |
2645 | SvNOKp_on(sv); | |
2646 | #endif | |
93a17b20 | 2647 | } |
748a9306 | 2648 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2649 | UV value; |
2650 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2651 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) | |
a0d0e21e | 2652 | not_a_number(sv); |
28e5dec8 | 2653 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2654 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2655 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2656 | /* It's definitely an integer */ |
c2988b20 NC |
2657 | SvNVX(sv) = (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value; |
2658 | } else | |
2659 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 JH |
2660 | SvNOK_on(sv); |
2661 | #else | |
c2988b20 | 2662 | SvNVX(sv) = Atof(SvPVX(sv)); |
28e5dec8 JH |
2663 | /* Only set the public NV OK flag if this NV preserves the value in |
2664 | the PV at least as well as an IV/UV would. | |
2665 | Not sure how to do this 100% reliably. */ | |
2666 | /* if that shift count is out of range then Configure's test is | |
2667 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2668 | UV_BITS */ | |
2669 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2670 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2671 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2672 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2673 | /* Can't use strtol etc to convert this string, so don't try. | |
2674 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2675 | SvNOK_on(sv); | |
2676 | } else { | |
2677 | /* value has been set. It may not be precise. */ | |
2678 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2679 | /* 2s complement assumption for (UV)IV_MIN */ | |
2680 | SvNOK_on(sv); /* Integer is too negative. */ | |
2681 | } else { | |
2682 | SvNOKp_on(sv); | |
2683 | SvIOKp_on(sv); | |
6fa402ec | 2684 | |
c2988b20 NC |
2685 | if (numtype & IS_NUMBER_NEG) { |
2686 | SvIVX(sv) = -(IV)value; | |
2687 | } else if (value <= (UV)IV_MAX) { | |
2688 | SvIVX(sv) = (IV)value; | |
2689 | } else { | |
2690 | SvUVX(sv) = value; | |
2691 | SvIsUV_on(sv); | |
2692 | } | |
2693 | ||
2694 | if (numtype & IS_NUMBER_NOT_INT) { | |
2695 | /* I believe that even if the original PV had decimals, | |
2696 | they are lost beyond the limit of the FP precision. | |
2697 | However, neither is canonical, so both only get p | |
2698 | flags. NWC, 2000/11/25 */ | |
2699 | /* Both already have p flags, so do nothing */ | |
2700 | } else { | |
2701 | NV nv = SvNVX(sv); | |
2702 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2703 | if (SvIVX(sv) == I_V(nv)) { | |
2704 | SvNOK_on(sv); | |
2705 | SvIOK_on(sv); | |
2706 | } else { | |
2707 | SvIOK_on(sv); | |
2708 | /* It had no "." so it must be integer. */ | |
2709 | } | |
2710 | } else { | |
2711 | /* between IV_MAX and NV(UV_MAX). | |
2712 | Could be slightly > UV_MAX */ | |
6fa402ec | 2713 | |
c2988b20 NC |
2714 | if (numtype & IS_NUMBER_NOT_INT) { |
2715 | /* UV and NV both imprecise. */ | |
2716 | } else { | |
2717 | UV nv_as_uv = U_V(nv); | |
2718 | ||
2719 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2720 | SvNOK_on(sv); | |
2721 | SvIOK_on(sv); | |
2722 | } else { | |
2723 | SvIOK_on(sv); | |
2724 | } | |
2725 | } | |
2726 | } | |
2727 | } | |
2728 | } | |
2729 | } | |
28e5dec8 | 2730 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2731 | } |
79072805 | 2732 | else { |
599cee73 | 2733 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2734 | report_uninit(); |
25da4f38 IZ |
2735 | if (SvTYPE(sv) < SVt_NV) |
2736 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2737 | /* XXX Ilya implies that this is a bug in callers that assume this |
2738 | and ideally should be fixed. */ | |
25da4f38 | 2739 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2740 | return 0.0; |
79072805 | 2741 | } |
572bbb43 | 2742 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2743 | DEBUG_c({ |
f93f4e46 | 2744 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2745 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2746 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2747 | RESTORE_NUMERIC_LOCAL(); |
2748 | }); | |
65202027 | 2749 | #else |
572bbb43 | 2750 | DEBUG_c({ |
f93f4e46 | 2751 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2752 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%g)\n", |
2753 | PTR2UV(sv), SvNVX(sv)); | |
097ee67d JH |
2754 | RESTORE_NUMERIC_LOCAL(); |
2755 | }); | |
572bbb43 | 2756 | #endif |
463ee0b2 | 2757 | return SvNVX(sv); |
79072805 LW |
2758 | } |
2759 | ||
645c22ef DM |
2760 | /* asIV(): extract an integer from the string value of an SV. |
2761 | * Caller must validate PVX */ | |
2762 | ||
76e3520e | 2763 | STATIC IV |
cea2e8a9 | 2764 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2765 | { |
c2988b20 NC |
2766 | UV value; |
2767 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2768 | ||
2769 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2770 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2771 | /* It's definitely an integer */ |
c2988b20 NC |
2772 | if (numtype & IS_NUMBER_NEG) { |
2773 | if (value < (UV)IV_MIN) | |
2774 | return -(IV)value; | |
2775 | } else { | |
2776 | if (value < (UV)IV_MAX) | |
2777 | return (IV)value; | |
2778 | } | |
2779 | } | |
d008e5eb | 2780 | if (!numtype) { |
d008e5eb GS |
2781 | if (ckWARN(WARN_NUMERIC)) |
2782 | not_a_number(sv); | |
2783 | } | |
c2988b20 | 2784 | return I_V(Atof(SvPVX(sv))); |
36477c24 | 2785 | } |
2786 | ||
645c22ef DM |
2787 | /* asUV(): extract an unsigned integer from the string value of an SV |
2788 | * Caller must validate PVX */ | |
2789 | ||
76e3520e | 2790 | STATIC UV |
cea2e8a9 | 2791 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2792 | { |
c2988b20 NC |
2793 | UV value; |
2794 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
36477c24 | 2795 | |
c2988b20 NC |
2796 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2797 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2798 | /* It's definitely an integer */ |
6fa402ec | 2799 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2800 | return value; |
2801 | } | |
d008e5eb | 2802 | if (!numtype) { |
d008e5eb GS |
2803 | if (ckWARN(WARN_NUMERIC)) |
2804 | not_a_number(sv); | |
2805 | } | |
097ee67d | 2806 | return U_V(Atof(SvPVX(sv))); |
36477c24 | 2807 | } |
2808 | ||
645c22ef DM |
2809 | /* |
2810 | =for apidoc sv_2pv_nolen | |
2811 | ||
2812 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2813 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2814 | =cut | |
2815 | */ | |
2816 | ||
79072805 | 2817 | char * |
864dbfa3 | 2818 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
2819 | { |
2820 | STRLEN n_a; | |
2821 | return sv_2pv(sv, &n_a); | |
2822 | } | |
2823 | ||
645c22ef DM |
2824 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2825 | * UV as a string towards the end of buf, and return pointers to start and | |
2826 | * end of it. | |
2827 | * | |
2828 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2829 | */ | |
2830 | ||
864dbfa3 | 2831 | static char * |
25da4f38 IZ |
2832 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
2833 | { | |
25da4f38 IZ |
2834 | char *ptr = buf + TYPE_CHARS(UV); |
2835 | char *ebuf = ptr; | |
2836 | int sign; | |
25da4f38 IZ |
2837 | |
2838 | if (is_uv) | |
2839 | sign = 0; | |
2840 | else if (iv >= 0) { | |
2841 | uv = iv; | |
2842 | sign = 0; | |
2843 | } else { | |
2844 | uv = -iv; | |
2845 | sign = 1; | |
2846 | } | |
2847 | do { | |
2848 | *--ptr = '0' + (uv % 10); | |
2849 | } while (uv /= 10); | |
2850 | if (sign) | |
2851 | *--ptr = '-'; | |
2852 | *peob = ebuf; | |
2853 | return ptr; | |
2854 | } | |
2855 | ||
645c22ef DM |
2856 | /* For backwards-compatibility only. sv_2pv() is normally #def'ed to |
2857 | * C<sv_2pv_macro()>. See also C<sv_2pv_flags()>. | |
2858 | */ | |
2859 | ||
1fa8b10d | 2860 | char * |
864dbfa3 | 2861 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) |
79072805 | 2862 | { |
36f65ada | 2863 | return sv_2pv_flags(sv, lp, SV_GMAGIC); |
8d6d96c1 HS |
2864 | } |
2865 | ||
645c22ef DM |
2866 | /* |
2867 | =for apidoc sv_2pv_flags | |
2868 | ||
ff276b08 | 2869 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
2870 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
2871 | if necessary. | |
2872 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
2873 | usually end up here too. | |
2874 | ||
2875 | =cut | |
2876 | */ | |
2877 | ||
8d6d96c1 HS |
2878 | char * |
2879 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
2880 | { | |
79072805 LW |
2881 | register char *s; |
2882 | int olderrno; | |
46fc3d4c | 2883 | SV *tsv; |
25da4f38 IZ |
2884 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
2885 | char *tmpbuf = tbuf; | |
79072805 | 2886 | |
463ee0b2 LW |
2887 | if (!sv) { |
2888 | *lp = 0; | |
2889 | return ""; | |
2890 | } | |
8990e307 | 2891 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
2892 | if (flags & SV_GMAGIC) |
2893 | mg_get(sv); | |
463ee0b2 LW |
2894 | if (SvPOKp(sv)) { |
2895 | *lp = SvCUR(sv); | |
2896 | return SvPVX(sv); | |
2897 | } | |
cf2093f6 | 2898 | if (SvIOKp(sv)) { |
1c846c1f | 2899 | if (SvIsUV(sv)) |
57def98f | 2900 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 2901 | else |
57def98f | 2902 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 2903 | tsv = Nullsv; |
a0d0e21e | 2904 | goto tokensave; |
463ee0b2 LW |
2905 | } |
2906 | if (SvNOKp(sv)) { | |
2d4389e4 | 2907 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 2908 | tsv = Nullsv; |
a0d0e21e | 2909 | goto tokensave; |
463ee0b2 | 2910 | } |
16d20bd9 | 2911 | if (!SvROK(sv)) { |
d008e5eb | 2912 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2913 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2914 | report_uninit(); |
c6ee37c5 | 2915 | } |
16d20bd9 AD |
2916 | *lp = 0; |
2917 | return ""; | |
2918 | } | |
463ee0b2 | 2919 | } |
ed6116ce LW |
2920 | if (SvTHINKFIRST(sv)) { |
2921 | if (SvROK(sv)) { | |
a0d0e21e | 2922 | SV* tmpstr; |
1554e226 | 2923 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
1dc13c17 | 2924 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2925 | return SvPV(tmpstr,*lp); |
ed6116ce LW |
2926 | sv = (SV*)SvRV(sv); |
2927 | if (!sv) | |
2928 | s = "NULLREF"; | |
2929 | else { | |
f9277f47 IZ |
2930 | MAGIC *mg; |
2931 | ||
ed6116ce | 2932 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
2933 | case SVt_PVMG: |
2934 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 2935 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
3149a8e4 | 2936 | == (SVs_OBJECT|SVs_RMG)) |
57668c4d | 2937 | && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp") |
14befaf4 | 2938 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
2cd61cdb | 2939 | regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 2940 | |
2cd61cdb | 2941 | if (!mg->mg_ptr) { |
8782bef2 GB |
2942 | char *fptr = "msix"; |
2943 | char reflags[6]; | |
2944 | char ch; | |
2945 | int left = 0; | |
2946 | int right = 4; | |
2947 | U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12; | |
2948 | ||
155aba94 | 2949 | while((ch = *fptr++)) { |
8782bef2 GB |
2950 | if(reganch & 1) { |
2951 | reflags[left++] = ch; | |
2952 | } | |
2953 | else { | |
2954 | reflags[right--] = ch; | |
2955 | } | |
2956 | reganch >>= 1; | |
2957 | } | |
2958 | if(left != 4) { | |
2959 | reflags[left] = '-'; | |
2960 | left = 5; | |
2961 | } | |
2962 | ||
2963 | mg->mg_len = re->prelen + 4 + left; | |
2964 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); | |
2965 | Copy("(?", mg->mg_ptr, 2, char); | |
2966 | Copy(reflags, mg->mg_ptr+2, left, char); | |
2967 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
2968 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
1bd3ad17 IZ |
2969 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
2970 | mg->mg_ptr[mg->mg_len] = 0; | |
2971 | } | |
3280af22 | 2972 | PL_reginterp_cnt += re->program[0].next_off; |
1bd3ad17 IZ |
2973 | *lp = mg->mg_len; |
2974 | return mg->mg_ptr; | |
f9277f47 IZ |
2975 | } |
2976 | /* Fall through */ | |
ed6116ce LW |
2977 | case SVt_NULL: |
2978 | case SVt_IV: | |
2979 | case SVt_NV: | |
2980 | case SVt_RV: | |
2981 | case SVt_PV: | |
2982 | case SVt_PVIV: | |
2983 | case SVt_PVNV: | |
81689caa HS |
2984 | case SVt_PVBM: if (SvROK(sv)) |
2985 | s = "REF"; | |
2986 | else | |
2987 | s = "SCALAR"; break; | |
ed6116ce LW |
2988 | case SVt_PVLV: s = "LVALUE"; break; |
2989 | case SVt_PVAV: s = "ARRAY"; break; | |
2990 | case SVt_PVHV: s = "HASH"; break; | |
2991 | case SVt_PVCV: s = "CODE"; break; | |
2992 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 2993 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 2994 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
2995 | default: s = "UNKNOWN"; break; |
2996 | } | |
46fc3d4c | 2997 | tsv = NEWSV(0,0); |
ed6116ce | 2998 | if (SvOBJECT(sv)) |
cea2e8a9 | 2999 | Perl_sv_setpvf(aTHX_ tsv, "%s=%s", HvNAME(SvSTASH(sv)), s); |
ed6116ce | 3000 | else |
46fc3d4c | 3001 | sv_setpv(tsv, s); |
57def98f | 3002 | Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv)); |
a0d0e21e | 3003 | goto tokensaveref; |
463ee0b2 | 3004 | } |
ed6116ce LW |
3005 | *lp = strlen(s); |
3006 | return s; | |
79072805 | 3007 | } |
0336b60e | 3008 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3009 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 3010 | report_uninit(); |
ed6116ce LW |
3011 | *lp = 0; |
3012 | return ""; | |
79072805 | 3013 | } |
79072805 | 3014 | } |
28e5dec8 JH |
3015 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3016 | /* I'm assuming that if both IV and NV are equally valid then | |
3017 | converting the IV is going to be more efficient */ | |
3018 | U32 isIOK = SvIOK(sv); | |
3019 | U32 isUIOK = SvIsUV(sv); | |
3020 | char buf[TYPE_CHARS(UV)]; | |
3021 | char *ebuf, *ptr; | |
3022 | ||
3023 | if (SvTYPE(sv) < SVt_PVIV) | |
3024 | sv_upgrade(sv, SVt_PVIV); | |
3025 | if (isUIOK) | |
3026 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3027 | else | |
3028 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
3029 | SvGROW(sv, ebuf - ptr + 1); /* inlined from sv_setpvn */ | |
3030 | Move(ptr,SvPVX(sv),ebuf - ptr,char); | |
3031 | SvCUR_set(sv, ebuf - ptr); | |
3032 | s = SvEND(sv); | |
3033 | *s = '\0'; | |
3034 | if (isIOK) | |
3035 | SvIOK_on(sv); | |
3036 | else | |
3037 | SvIOKp_on(sv); | |
3038 | if (isUIOK) | |
3039 | SvIsUV_on(sv); | |
3040 | } | |
3041 | else if (SvNOKp(sv)) { | |
79072805 LW |
3042 | if (SvTYPE(sv) < SVt_PVNV) |
3043 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3044 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
59155cc0 | 3045 | SvGROW(sv, NV_DIG + 20); |
463ee0b2 | 3046 | s = SvPVX(sv); |
79072805 | 3047 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3048 | #ifdef apollo |
463ee0b2 | 3049 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3050 | (void)strcpy(s,"0"); |
3051 | else | |
3052 | #endif /*apollo*/ | |
bbce6d69 | 3053 | { |
2d4389e4 | 3054 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3055 | } |
79072805 | 3056 | errno = olderrno; |
a0d0e21e LW |
3057 | #ifdef FIXNEGATIVEZERO |
3058 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3059 | strcpy(s,"0"); | |
3060 | #endif | |
79072805 LW |
3061 | while (*s) s++; |
3062 | #ifdef hcx | |
3063 | if (s[-1] == '.') | |
46fc3d4c | 3064 | *--s = '\0'; |
79072805 LW |
3065 | #endif |
3066 | } | |
79072805 | 3067 | else { |
0336b60e IZ |
3068 | if (ckWARN(WARN_UNINITIALIZED) |
3069 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
1d7c1841 | 3070 | report_uninit(); |
a0d0e21e | 3071 | *lp = 0; |
25da4f38 IZ |
3072 | if (SvTYPE(sv) < SVt_PV) |
3073 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3074 | sv_upgrade(sv, SVt_PV); | |
a0d0e21e | 3075 | return ""; |
79072805 | 3076 | } |
463ee0b2 LW |
3077 | *lp = s - SvPVX(sv); |
3078 | SvCUR_set(sv, *lp); | |
79072805 | 3079 | SvPOK_on(sv); |
1d7c1841 GS |
3080 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3081 | PTR2UV(sv),SvPVX(sv))); | |
463ee0b2 | 3082 | return SvPVX(sv); |
a0d0e21e LW |
3083 | |
3084 | tokensave: | |
3085 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3086 | /* Sneaky stuff here */ | |
3087 | ||
3088 | tokensaveref: | |
46fc3d4c | 3089 | if (!tsv) |
96827780 | 3090 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3091 | sv_2mortal(tsv); |
3092 | *lp = SvCUR(tsv); | |
3093 | return SvPVX(tsv); | |
a0d0e21e LW |
3094 | } |
3095 | else { | |
3096 | STRLEN len; | |
46fc3d4c | 3097 | char *t; |
3098 | ||
3099 | if (tsv) { | |
3100 | sv_2mortal(tsv); | |
3101 | t = SvPVX(tsv); | |
3102 | len = SvCUR(tsv); | |
3103 | } | |
3104 | else { | |
96827780 MB |
3105 | t = tmpbuf; |
3106 | len = strlen(tmpbuf); | |
46fc3d4c | 3107 | } |
a0d0e21e | 3108 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3109 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3110 | t = "0"; | |
3111 | len = 1; | |
3112 | } | |
a0d0e21e LW |
3113 | #endif |
3114 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 3115 | *lp = len; |
a0d0e21e LW |
3116 | s = SvGROW(sv, len + 1); |
3117 | SvCUR_set(sv, len); | |
46fc3d4c | 3118 | (void)strcpy(s, t); |
6bf554b4 | 3119 | SvPOKp_on(sv); |
a0d0e21e LW |
3120 | return s; |
3121 | } | |
463ee0b2 LW |
3122 | } |
3123 | ||
645c22ef DM |
3124 | /* |
3125 | =for apidoc sv_2pvbyte_nolen | |
3126 | ||
3127 | Return a pointer to the byte-encoded representation of the SV. | |
3128 | May cause the SV to be downgraded from UTF8 as a side-effect. | |
3129 | ||
3130 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3131 | ||
3132 | =cut | |
3133 | */ | |
3134 | ||
7340a771 GS |
3135 | char * |
3136 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3137 | { | |
560a288e GS |
3138 | STRLEN n_a; |
3139 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
3140 | } |
3141 | ||
645c22ef DM |
3142 | /* |
3143 | =for apidoc sv_2pvbyte | |
3144 | ||
3145 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
3146 | to its length. May cause the SV to be downgraded from UTF8 as a | |
3147 | side-effect. | |
3148 | ||
3149 | Usually accessed via the C<SvPVbyte> macro. | |
3150 | ||
3151 | =cut | |
3152 | */ | |
3153 | ||
7340a771 GS |
3154 | char * |
3155 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3156 | { | |
0875d2fe NIS |
3157 | sv_utf8_downgrade(sv,0); |
3158 | return SvPV(sv,*lp); | |
7340a771 GS |
3159 | } |
3160 | ||
645c22ef DM |
3161 | /* |
3162 | =for apidoc sv_2pvutf8_nolen | |
3163 | ||
3164 | Return a pointer to the UTF8-encoded representation of the SV. | |
3165 | May cause the SV to be upgraded to UTF8 as a side-effect. | |
3166 | ||
3167 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3168 | ||
3169 | =cut | |
3170 | */ | |
3171 | ||
7340a771 GS |
3172 | char * |
3173 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3174 | { | |
560a288e GS |
3175 | STRLEN n_a; |
3176 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
3177 | } |
3178 | ||
645c22ef DM |
3179 | /* |
3180 | =for apidoc sv_2pvutf8 | |
3181 | ||
3182 | Return a pointer to the UTF8-encoded representation of the SV, and set *lp | |
3183 | to its length. May cause the SV to be upgraded to UTF8 as a side-effect. | |
3184 | ||
3185 | Usually accessed via the C<SvPVutf8> macro. | |
3186 | ||
3187 | =cut | |
3188 | */ | |
3189 | ||
7340a771 GS |
3190 | char * |
3191 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3192 | { | |
560a288e | 3193 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3194 | return SvPV(sv,*lp); |
7340a771 | 3195 | } |
1c846c1f | 3196 | |
645c22ef DM |
3197 | /* |
3198 | =for apidoc sv_2bool | |
3199 | ||
3200 | This function is only called on magical items, and is only used by | |
3201 | sv_true() or its macro equivalent. | |
3202 | ||
3203 | =cut | |
3204 | */ | |
3205 | ||
463ee0b2 | 3206 | bool |
864dbfa3 | 3207 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3208 | { |
8990e307 | 3209 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3210 | mg_get(sv); |
3211 | ||
a0d0e21e LW |
3212 | if (!SvOK(sv)) |
3213 | return 0; | |
3214 | if (SvROK(sv)) { | |
a0d0e21e | 3215 | SV* tmpsv; |
1554e226 | 3216 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
1dc13c17 | 3217 | (SvTYPE(tmpsv) != SVt_RV || (SvRV(tmpsv) != SvRV(sv)))) |
9e7bc3e8 | 3218 | return SvTRUE(tmpsv); |
a0d0e21e LW |
3219 | return SvRV(sv) != 0; |
3220 | } | |
463ee0b2 | 3221 | if (SvPOKp(sv)) { |
11343788 MB |
3222 | register XPV* Xpvtmp; |
3223 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
3224 | (*Xpvtmp->xpv_pv > '0' || | |
3225 | Xpvtmp->xpv_cur > 1 || | |
3226 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3227 | return 1; |
3228 | else | |
3229 | return 0; | |
3230 | } | |
3231 | else { | |
3232 | if (SvIOKp(sv)) | |
3233 | return SvIVX(sv) != 0; | |
3234 | else { | |
3235 | if (SvNOKp(sv)) | |
3236 | return SvNVX(sv) != 0.0; | |
3237 | else | |
3238 | return FALSE; | |
3239 | } | |
3240 | } | |
79072805 LW |
3241 | } |
3242 | ||
c461cf8f JH |
3243 | /* |
3244 | =for apidoc sv_utf8_upgrade | |
3245 | ||
3246 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3247 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3248 | Always sets the SvUTF8 flag to avoid future validity checks even |
3249 | if all the bytes have hibit clear. | |
c461cf8f JH |
3250 | |
3251 | =cut | |
3252 | */ | |
3253 | ||
4411f3b6 | 3254 | STRLEN |
560a288e GS |
3255 | Perl_sv_utf8_upgrade(pTHX_ register SV *sv) |
3256 | { | |
36f65ada | 3257 | return sv_utf8_upgrade_flags(sv, SV_GMAGIC); |
8d6d96c1 HS |
3258 | } |
3259 | ||
3260 | /* | |
3261 | =for apidoc sv_utf8_upgrade_flags | |
3262 | ||
3263 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3264 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3265 | Always sets the SvUTF8 flag to avoid future validity checks even |
3266 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3267 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3268 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3269 | ||
3270 | =cut | |
3271 | */ | |
3272 | ||
3273 | STRLEN | |
3274 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3275 | { | |
db42d148 | 3276 | U8 *s, *t, *e; |
511c2ff0 | 3277 | int hibit = 0; |
560a288e | 3278 | |
4411f3b6 NIS |
3279 | if (!sv) |
3280 | return 0; | |
3281 | ||
e0e62c2a NIS |
3282 | if (!SvPOK(sv)) { |
3283 | STRLEN len = 0; | |
8d6d96c1 | 3284 | (void) sv_2pv_flags(sv,&len, flags); |
e0e62c2a NIS |
3285 | if (!SvPOK(sv)) |
3286 | return len; | |
3287 | } | |
4411f3b6 NIS |
3288 | |
3289 | if (SvUTF8(sv)) | |
3290 | return SvCUR(sv); | |
560a288e | 3291 | |
db42d148 NIS |
3292 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
3293 | sv_force_normal(sv); | |
3294 | } | |
3295 | ||
40826f67 JH |
3296 | /* This function could be much more efficient if we had a FLAG in SVs |
3297 | * to signal if there are any hibit chars in the PV. | |
511c2ff0 | 3298 | * Given that there isn't make loop fast as possible |
560a288e | 3299 | */ |
db42d148 NIS |
3300 | s = (U8 *) SvPVX(sv); |
3301 | e = (U8 *) SvEND(sv); | |
511c2ff0 NIS |
3302 | t = s; |
3303 | while (t < e) { | |
c4d5f83a NIS |
3304 | U8 ch = *t++; |
3305 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) | |
8a818333 | 3306 | break; |
8a818333 | 3307 | } |
40826f67 | 3308 | if (hibit) { |
8a818333 | 3309 | STRLEN len; |
652088fc | 3310 | |
8a818333 | 3311 | len = SvCUR(sv) + 1; /* Plus the \0 */ |
00df9076 | 3312 | SvPVX(sv) = (char*)bytes_to_utf8((U8*)s, &len); |
841d7a39 | 3313 | SvCUR(sv) = len - 1; |
511c2ff0 NIS |
3314 | if (SvLEN(sv) != 0) |
3315 | Safefree(s); /* No longer using what was there before. */ | |
841d7a39 | 3316 | SvLEN(sv) = len; /* No longer know the real size. */ |
560a288e | 3317 | } |
4411f3b6 NIS |
3318 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ |
3319 | SvUTF8_on(sv); | |
3320 | return SvCUR(sv); | |
560a288e GS |
3321 | } |
3322 | ||
c461cf8f JH |
3323 | /* |
3324 | =for apidoc sv_utf8_downgrade | |
3325 | ||
3326 | Attempt to convert the PV of an SV from UTF8-encoded to byte encoding. | |
3327 | This may not be possible if the PV contains non-byte encoding characters; | |
3328 | if this is the case, either returns false or, if C<fail_ok> is not | |
3329 | true, croaks. | |
3330 | ||
3331 | =cut | |
3332 | */ | |
3333 | ||
560a288e GS |
3334 | bool |
3335 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3336 | { | |
3337 | if (SvPOK(sv) && SvUTF8(sv)) { | |
fa301091 | 3338 | if (SvCUR(sv)) { |
03cfe0ae | 3339 | U8 *s; |
652088fc | 3340 | STRLEN len; |
fa301091 | 3341 | |
652088fc JH |
3342 | if (SvREADONLY(sv) && SvFAKE(sv)) |
3343 | sv_force_normal(sv); | |
03cfe0ae NIS |
3344 | s = (U8 *) SvPV(sv, len); |
3345 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3346 | if (fail_ok) |
3347 | return FALSE; | |
03cfe0ae | 3348 | #ifdef USE_BYTES_DOWNGRADES |
0064a8a9 | 3349 | else if (IN_BYTES) { |
03cfe0ae NIS |
3350 | U8 *d = s; |
3351 | U8 *e = (U8 *) SvEND(sv); | |
3352 | int first = 1; | |
3353 | while (s < e) { | |
3354 | UV ch = utf8n_to_uvchr(s,(e-s),&len,0); | |
3355 | if (first && ch > 255) { | |
3356 | if (PL_op) | |
3357 | Perl_warner(aTHX_ WARN_UTF8, "Wide character in byte %s", | |
53e06cf0 | 3358 | OP_DESC(PL_op); |
03cfe0ae NIS |
3359 | else |
3360 | Perl_warner(aTHX_ WARN_UTF8, "Wide character in byte"); | |
3361 | first = 0; | |
3362 | } | |
3363 | *d++ = ch; | |
3364 | s += len; | |
3365 | } | |
3366 | *d = '\0'; | |
3367 | len = (d - (U8 *) SvPVX(sv)); | |
3368 | } | |
3369 | #endif | |
fa301091 JH |
3370 | else { |
3371 | if (PL_op) | |
3372 | Perl_croak(aTHX_ "Wide character in %s", | |
53e06cf0 | 3373 | OP_DESC(PL_op)); |
fa301091 JH |
3374 | else |
3375 | Perl_croak(aTHX_ "Wide character"); | |
3376 | } | |
4b3603a4 | 3377 | } |
fa301091 | 3378 | SvCUR(sv) = len; |
67e989fb | 3379 | } |
560a288e | 3380 | } |
ffebcc3e | 3381 | SvUTF8_off(sv); |
560a288e GS |
3382 | return TRUE; |
3383 | } | |
3384 | ||
c461cf8f JH |
3385 | /* |
3386 | =for apidoc sv_utf8_encode | |
3387 | ||
3388 | Convert the PV of an SV to UTF8-encoded, but then turn off the C<SvUTF8> | |
4411f3b6 NIS |
3389 | flag so that it looks like octets again. Used as a building block |
3390 | for encode_utf8 in Encode.xs | |
c461cf8f JH |
3391 | |
3392 | =cut | |
3393 | */ | |
3394 | ||
560a288e GS |
3395 | void |
3396 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3397 | { | |
4411f3b6 | 3398 | (void) sv_utf8_upgrade(sv); |
560a288e GS |
3399 | SvUTF8_off(sv); |
3400 | } | |
3401 | ||
4411f3b6 NIS |
3402 | /* |
3403 | =for apidoc sv_utf8_decode | |
3404 | ||
3405 | Convert the octets in the PV from UTF-8 to chars. Scan for validity and then | |
645c22ef | 3406 | turn off SvUTF8 if needed so that we see characters. Used as a building block |
4411f3b6 NIS |
3407 | for decode_utf8 in Encode.xs |
3408 | ||
3409 | =cut | |
3410 | */ | |
3411 | ||
560a288e GS |
3412 | bool |
3413 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3414 | { | |
3415 | if (SvPOK(sv)) { | |
63cd0674 NIS |
3416 | U8 *c; |
3417 | U8 *e; | |
9cbac4c7 | 3418 | |
645c22ef DM |
3419 | /* The octets may have got themselves encoded - get them back as |
3420 | * bytes | |
3421 | */ | |
3422 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3423 | return FALSE; |
3424 | ||
3425 | /* it is actually just a matter of turning the utf8 flag on, but | |
3426 | * we want to make sure everything inside is valid utf8 first. | |
3427 | */ | |
63cd0674 NIS |
3428 | c = (U8 *) SvPVX(sv); |
3429 | if (!is_utf8_string(c, SvCUR(sv)+1)) | |
67e989fb | 3430 | return FALSE; |
63cd0674 | 3431 | e = (U8 *) SvEND(sv); |
511c2ff0 | 3432 | while (c < e) { |
c4d5f83a NIS |
3433 | U8 ch = *c++; |
3434 | if (!UTF8_IS_INVARIANT(ch)) { | |
67e989fb JH |
3435 | SvUTF8_on(sv); |
3436 | break; | |
3437 | } | |
560a288e | 3438 | } |
560a288e GS |
3439 | } |
3440 | return TRUE; | |
3441 | } | |
3442 | ||
954c1994 GS |
3443 | /* |
3444 | =for apidoc sv_setsv | |
3445 | ||
645c22ef DM |
3446 | Copies the contents of the source SV C<ssv> into the destination SV |
3447 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3448 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3449 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3450 | content of the destination. | |
3451 | ||
3452 | You probably want to use one of the assortment of wrappers, such as | |
3453 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3454 | C<SvSetMagicSV_nosteal>. | |
3455 | ||
954c1994 GS |
3456 | |
3457 | =cut | |
3458 | */ | |
3459 | ||
8d6d96c1 HS |
3460 | /* sv_setsv() is aliased to Perl_sv_setsv_macro; this function provided |
3461 | for binary compatibility only | |
3462 | */ | |
79072805 | 3463 | void |
864dbfa3 | 3464 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) |
79072805 | 3465 | { |
8d6d96c1 HS |
3466 | sv_setsv_flags(dstr, sstr, SV_GMAGIC); |
3467 | } | |
3468 | ||
3469 | /* | |
3470 | =for apidoc sv_setsv_flags | |
3471 | ||
645c22ef DM |
3472 | Copies the contents of the source SV C<ssv> into the destination SV |
3473 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3474 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3475 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3476 | content of the destination. | |
3477 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
3478 | C<ssv> if appropriate, else not. C<sv_setsv> and C<sv_setsv_nomg> are | |
3479 | implemented in terms of this function. | |
3480 | ||
3481 | You probably want to use one of the assortment of wrappers, such as | |
3482 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3483 | C<SvSetMagicSV_nosteal>. | |
3484 | ||
3485 | This is the primary function for copying scalars, and most other | |
3486 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3487 | |
3488 | =cut | |
3489 | */ | |
3490 | ||
3491 | void | |
3492 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3493 | { | |
8990e307 LW |
3494 | register U32 sflags; |
3495 | register int dtype; | |
3496 | register int stype; | |
463ee0b2 | 3497 | |
79072805 LW |
3498 | if (sstr == dstr) |
3499 | return; | |
2213622d | 3500 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 3501 | if (!sstr) |
3280af22 | 3502 | sstr = &PL_sv_undef; |
8990e307 LW |
3503 | stype = SvTYPE(sstr); |
3504 | dtype = SvTYPE(dstr); | |
79072805 | 3505 | |
a0d0e21e | 3506 | SvAMAGIC_off(dstr); |
9e7bc3e8 | 3507 | |
463ee0b2 | 3508 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3509 | |
8990e307 | 3510 | switch (stype) { |
79072805 | 3511 | case SVt_NULL: |
aece5585 | 3512 | undef_sstr: |
20408e3c GS |
3513 | if (dtype != SVt_PVGV) { |
3514 | (void)SvOK_off(dstr); | |
3515 | return; | |
3516 | } | |
3517 | break; | |
463ee0b2 | 3518 | case SVt_IV: |
aece5585 GA |
3519 | if (SvIOK(sstr)) { |
3520 | switch (dtype) { | |
3521 | case SVt_NULL: | |
8990e307 | 3522 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3523 | break; |
3524 | case SVt_NV: | |
8990e307 | 3525 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3526 | break; |
3527 | case SVt_RV: | |
3528 | case SVt_PV: | |
a0d0e21e | 3529 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3530 | break; |
3531 | } | |
3532 | (void)SvIOK_only(dstr); | |
3533 | SvIVX(dstr) = SvIVX(sstr); | |
25da4f38 IZ |
3534 | if (SvIsUV(sstr)) |
3535 | SvIsUV_on(dstr); | |
27c9684d AP |
3536 | if (SvTAINTED(sstr)) |
3537 | SvTAINT(dstr); | |
aece5585 | 3538 | return; |
8990e307 | 3539 | } |
aece5585 GA |
3540 | goto undef_sstr; |
3541 | ||
463ee0b2 | 3542 | case SVt_NV: |
aece5585 GA |
3543 | if (SvNOK(sstr)) { |
3544 | switch (dtype) { | |
3545 | case SVt_NULL: | |
3546 | case SVt_IV: | |
8990e307 | 3547 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3548 | break; |
3549 | case SVt_RV: | |
3550 | case SVt_PV: | |
3551 | case SVt_PVIV: | |
a0d0e21e | 3552 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3553 | break; |
3554 | } | |
3555 | SvNVX(dstr) = SvNVX(sstr); | |
3556 | (void)SvNOK_only(dstr); | |
27c9684d AP |
3557 | if (SvTAINTED(sstr)) |
3558 | SvTAINT(dstr); | |
aece5585 | 3559 | return; |
8990e307 | 3560 | } |
aece5585 GA |
3561 | goto undef_sstr; |
3562 | ||
ed6116ce | 3563 | case SVt_RV: |
8990e307 | 3564 | if (dtype < SVt_RV) |
ed6116ce | 3565 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3566 | else if (dtype == SVt_PVGV && |
3567 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { | |
3568 | sstr = SvRV(sstr); | |
a5f75d66 | 3569 | if (sstr == dstr) { |
1d7c1841 GS |
3570 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3571 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3572 | { | |
a5f75d66 | 3573 | GvIMPORTED_on(dstr); |
1d7c1841 | 3574 | } |
a5f75d66 AD |
3575 | GvMULTI_on(dstr); |
3576 | return; | |
3577 | } | |
c07a80fd | 3578 | goto glob_assign; |
3579 | } | |
ed6116ce | 3580 | break; |
463ee0b2 | 3581 | case SVt_PV: |
fc36a67e | 3582 | case SVt_PVFM: |
8990e307 | 3583 | if (dtype < SVt_PV) |
463ee0b2 | 3584 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3585 | break; |
3586 | case SVt_PVIV: | |
8990e307 | 3587 | if (dtype < SVt_PVIV) |
463ee0b2 | 3588 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3589 | break; |
3590 | case SVt_PVNV: | |
8990e307 | 3591 | if (dtype < SVt_PVNV) |
463ee0b2 | 3592 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3593 | break; |
4633a7c4 LW |
3594 | case SVt_PVAV: |
3595 | case SVt_PVHV: | |
3596 | case SVt_PVCV: | |
4633a7c4 | 3597 | case SVt_PVIO: |
533c011a | 3598 | if (PL_op) |
cea2e8a9 | 3599 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
53e06cf0 | 3600 | OP_NAME(PL_op)); |
4633a7c4 | 3601 | else |
cea2e8a9 | 3602 | Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); |
4633a7c4 LW |
3603 | break; |
3604 | ||
79072805 | 3605 | case SVt_PVGV: |
8990e307 | 3606 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3607 | glob_assign: |
a5f75d66 | 3608 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
3609 | char *name = GvNAME(sstr); |
3610 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 3611 | sv_upgrade(dstr, SVt_PVGV); |
14befaf4 | 3612 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 3613 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
3614 | GvNAME(dstr) = savepvn(name, len); |
3615 | GvNAMELEN(dstr) = len; | |
3616 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3617 | } | |
7bac28a0 | 3618 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3619 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3620 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3621 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3622 | GvNAME(dstr)); |
5bd07a3d | 3623 | |
7fb37951 AMS |
3624 | #ifdef GV_UNIQUE_CHECK |
3625 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3626 | Perl_croak(aTHX_ PL_no_modify); |
3627 | } | |
3628 | #endif | |
3629 | ||
a0d0e21e | 3630 | (void)SvOK_off(dstr); |
a5f75d66 | 3631 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3632 | gp_free((GV*)dstr); |
79072805 | 3633 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3634 | if (SvTAINTED(sstr)) |
3635 | SvTAINT(dstr); | |
1d7c1841 GS |
3636 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3637 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3638 | { | |
a5f75d66 | 3639 | GvIMPORTED_on(dstr); |
1d7c1841 | 3640 | } |
a5f75d66 | 3641 | GvMULTI_on(dstr); |
79072805 LW |
3642 | return; |
3643 | } | |
3644 | /* FALL THROUGH */ | |
3645 | ||
3646 | default: | |
8d6d96c1 | 3647 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab CS |
3648 | mg_get(sstr); |
3649 | if (SvTYPE(sstr) != stype) { | |
3650 | stype = SvTYPE(sstr); | |
3651 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3652 | goto glob_assign; | |
3653 | } | |
3654 | } | |
ded42b9f | 3655 | if (stype == SVt_PVLV) |
6fc92669 | 3656 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3657 | else |
6fc92669 | 3658 | (void)SvUPGRADE(dstr, stype); |
79072805 LW |
3659 | } |
3660 | ||
8990e307 LW |
3661 | sflags = SvFLAGS(sstr); |
3662 | ||
3663 | if (sflags & SVf_ROK) { | |
3664 | if (dtype >= SVt_PV) { | |
3665 | if (dtype == SVt_PVGV) { | |
3666 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3667 | SV *dref = 0; | |
a5f75d66 | 3668 | int intro = GvINTRO(dstr); |
a0d0e21e | 3669 | |
7fb37951 AMS |
3670 | #ifdef GV_UNIQUE_CHECK |
3671 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3672 | Perl_croak(aTHX_ PL_no_modify); |
3673 | } | |
3674 | #endif | |
3675 | ||
a0d0e21e | 3676 | if (intro) { |
a5f75d66 | 3677 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3678 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3679 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3680 | } |
a5f75d66 | 3681 | GvMULTI_on(dstr); |
8990e307 LW |
3682 | switch (SvTYPE(sref)) { |
3683 | case SVt_PVAV: | |
a0d0e21e LW |
3684 | if (intro) |
3685 | SAVESPTR(GvAV(dstr)); | |
3686 | else | |
3687 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3688 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3689 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3690 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3691 | { | |
a5f75d66 | 3692 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3693 | } |
8990e307 LW |
3694 | break; |
3695 | case SVt_PVHV: | |
a0d0e21e LW |
3696 | if (intro) |
3697 | SAVESPTR(GvHV(dstr)); | |
3698 | else | |
3699 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3700 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3701 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3702 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3703 | { | |
a5f75d66 | 3704 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3705 | } |
8990e307 LW |
3706 | break; |
3707 | case SVt_PVCV: | |
8ebc5c01 | 3708 | if (intro) { |
3709 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3710 | SvREFCNT_dec(GvCV(dstr)); | |
3711 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3712 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3713 | PL_sub_generation++; |
8ebc5c01 | 3714 | } |
a0d0e21e | 3715 | SAVESPTR(GvCV(dstr)); |
8ebc5c01 | 3716 | } |
68dc0745 | 3717 | else |
3718 | dref = (SV*)GvCV(dstr); | |
3719 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3720 | CV* cv = GvCV(dstr); |
4633a7c4 | 3721 | if (cv) { |
68dc0745 | 3722 | if (!GvCVGEN((GV*)dstr) && |
3723 | (CvROOT(cv) || CvXSUB(cv))) | |
3724 | { | |
7bac28a0 | 3725 | /* ahem, death to those who redefine |
3726 | * active sort subs */ | |
3280af22 NIS |
3727 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
3728 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 3729 | Perl_croak(aTHX_ |
7bac28a0 | 3730 | "Can't redefine active sort subroutine %s", |
3731 | GvENAME((GV*)dstr)); | |
beab0874 JT |
3732 | /* Redefining a sub - warning is mandatory if |
3733 | it was a const and its value changed. */ | |
3734 | if (ckWARN(WARN_REDEFINE) | |
3735 | || (CvCONST(cv) | |
3736 | && (!CvCONST((CV*)sref) | |
3737 | || sv_cmp(cv_const_sv(cv), | |
3738 | cv_const_sv((CV*)sref))))) | |
3739 | { | |
3740 | Perl_warner(aTHX_ WARN_REDEFINE, | |
3741 | CvCONST(cv) | |
3742 | ? "Constant subroutine %s redefined" | |
47deb5e7 | 3743 | : "Subroutine %s redefined", |
beab0874 JT |
3744 | GvENAME((GV*)dstr)); |
3745 | } | |
9607fc9c | 3746 | } |
3fe9a6f1 | 3747 | cv_ckproto(cv, (GV*)dstr, |
3748 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 3749 | } |
a5f75d66 | 3750 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 3751 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 3752 | GvASSUMECV_on(dstr); |
3280af22 | 3753 | PL_sub_generation++; |
a5f75d66 | 3754 | } |
39bac7f7 | 3755 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
3756 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3757 | { | |
a5f75d66 | 3758 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 3759 | } |
8990e307 | 3760 | break; |
91bba347 LW |
3761 | case SVt_PVIO: |
3762 | if (intro) | |
3763 | SAVESPTR(GvIOp(dstr)); | |
3764 | else | |
3765 | dref = (SV*)GvIOp(dstr); | |
3766 | GvIOp(dstr) = (IO*)sref; | |
3767 | break; | |
f4d13ee9 JH |
3768 | case SVt_PVFM: |
3769 | if (intro) | |
3770 | SAVESPTR(GvFORM(dstr)); | |
3771 | else | |
3772 | dref = (SV*)GvFORM(dstr); | |
3773 | GvFORM(dstr) = (CV*)sref; | |
3774 | break; | |
8990e307 | 3775 | default: |
a0d0e21e LW |
3776 | if (intro) |
3777 | SAVESPTR(GvSV(dstr)); | |
3778 | else | |
3779 | dref = (SV*)GvSV(dstr); | |
8990e307 | 3780 | GvSV(dstr) = sref; |
39bac7f7 | 3781 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
3782 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3783 | { | |
a5f75d66 | 3784 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 3785 | } |
8990e307 LW |
3786 | break; |
3787 | } | |
3788 | if (dref) | |
3789 | SvREFCNT_dec(dref); | |
a0d0e21e LW |
3790 | if (intro) |
3791 | SAVEFREESV(sref); | |
27c9684d AP |
3792 | if (SvTAINTED(sstr)) |
3793 | SvTAINT(dstr); | |
8990e307 LW |
3794 | return; |
3795 | } | |
a0d0e21e | 3796 | if (SvPVX(dstr)) { |
760ac839 | 3797 | (void)SvOOK_off(dstr); /* backoff */ |
50483b2c JD |
3798 | if (SvLEN(dstr)) |
3799 | Safefree(SvPVX(dstr)); | |
a0d0e21e LW |
3800 | SvLEN(dstr)=SvCUR(dstr)=0; |
3801 | } | |
8990e307 | 3802 | } |
a0d0e21e | 3803 | (void)SvOK_off(dstr); |
8990e307 | 3804 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 3805 | SvROK_on(dstr); |
8990e307 | 3806 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3807 | SvNOKp_on(dstr); |
3808 | /* Only set the public OK flag if the source has public OK. */ | |
3809 | if (sflags & SVf_NOK) | |
3810 | SvFLAGS(dstr) |= SVf_NOK; | |
ed6116ce LW |
3811 | SvNVX(dstr) = SvNVX(sstr); |
3812 | } | |
8990e307 | 3813 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3814 | (void)SvIOKp_on(dstr); |
3815 | if (sflags & SVf_IOK) | |
3816 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3817 | if (sflags & SVf_IVisUV) |
25da4f38 | 3818 | SvIsUV_on(dstr); |
3332b3c1 | 3819 | SvIVX(dstr) = SvIVX(sstr); |
ed6116ce | 3820 | } |
a0d0e21e LW |
3821 | if (SvAMAGIC(sstr)) { |
3822 | SvAMAGIC_on(dstr); | |
3823 | } | |
ed6116ce | 3824 | } |
8990e307 | 3825 | else if (sflags & SVp_POK) { |
79072805 LW |
3826 | |
3827 | /* | |
3828 | * Check to see if we can just swipe the string. If so, it's a | |
3829 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
3830 | * It might even be a win on short strings if SvPVX(dstr) |
3831 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
3832 | */ |
3833 | ||
ff68c719 | 3834 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 3835 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
1c846c1f | 3836 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ |
4c8f17b9 | 3837 | SvLEN(sstr) && /* and really is a string */ |
645c22ef DM |
3838 | /* and won't be needed again, potentially */ |
3839 | !(PL_op && PL_op->op_type == OP_AASSIGN)) | |
a5f75d66 | 3840 | { |
adbc6bb1 | 3841 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
3842 | if (SvOOK(dstr)) { |
3843 | SvFLAGS(dstr) &= ~SVf_OOK; | |
3844 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
3845 | } | |
50483b2c | 3846 | else if (SvLEN(dstr)) |
a5f75d66 | 3847 | Safefree(SvPVX(dstr)); |
79072805 | 3848 | } |
a5f75d66 | 3849 | (void)SvPOK_only(dstr); |
463ee0b2 | 3850 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
3851 | SvLEN_set(dstr, SvLEN(sstr)); |
3852 | SvCUR_set(dstr, SvCUR(sstr)); | |
f4e86e0f | 3853 | |
79072805 | 3854 | SvTEMP_off(dstr); |
645c22ef | 3855 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ |
79072805 LW |
3856 | SvPV_set(sstr, Nullch); |
3857 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
3858 | SvCUR_set(sstr, 0); |
3859 | SvTEMP_off(sstr); | |
79072805 | 3860 | } |
645c22ef | 3861 | else { /* have to copy actual string */ |
8990e307 LW |
3862 | STRLEN len = SvCUR(sstr); |
3863 | ||
645c22ef | 3864 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ |
8990e307 LW |
3865 | Move(SvPVX(sstr),SvPVX(dstr),len,char); |
3866 | SvCUR_set(dstr, len); | |
3867 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 3868 | (void)SvPOK_only(dstr); |
79072805 | 3869 | } |
9aa983d2 | 3870 | if (sflags & SVf_UTF8) |
a7cb1f99 | 3871 | SvUTF8_on(dstr); |
79072805 | 3872 | /*SUPPRESS 560*/ |
8990e307 | 3873 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3874 | SvNOKp_on(dstr); |
3875 | if (sflags & SVf_NOK) | |
3876 | SvFLAGS(dstr) |= SVf_NOK; | |
463ee0b2 | 3877 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 3878 | } |
8990e307 | 3879 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3880 | (void)SvIOKp_on(dstr); |
3881 | if (sflags & SVf_IOK) | |
3882 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3883 | if (sflags & SVf_IVisUV) |
25da4f38 | 3884 | SvIsUV_on(dstr); |
463ee0b2 | 3885 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
3886 | } |
3887 | } | |
8990e307 | 3888 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
3889 | if (sflags & SVf_IOK) |
3890 | (void)SvIOK_only(dstr); | |
3891 | else { | |
9cbac4c7 DM |
3892 | (void)SvOK_off(dstr); |
3893 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
3894 | } |
3895 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 3896 | if (sflags & SVf_IVisUV) |
25da4f38 | 3897 | SvIsUV_on(dstr); |
3332b3c1 JH |
3898 | SvIVX(dstr) = SvIVX(sstr); |
3899 | if (sflags & SVp_NOK) { | |
3900 | if (sflags & SVf_NOK) | |
3901 | (void)SvNOK_on(dstr); | |
3902 | else | |
3903 | (void)SvNOKp_on(dstr); | |
3904 | SvNVX(dstr) = SvNVX(sstr); | |
3905 | } | |
3906 | } | |
3907 | else if (sflags & SVp_NOK) { | |
3908 | if (sflags & SVf_NOK) | |
3909 | (void)SvNOK_only(dstr); | |
3910 | else { | |
9cbac4c7 | 3911 | (void)SvOK_off(dstr); |
3332b3c1 JH |
3912 | SvNOKp_on(dstr); |
3913 | } | |
3914 | SvNVX(dstr) = SvNVX(sstr); | |
79072805 LW |
3915 | } |
3916 | else { | |
20408e3c | 3917 | if (dtype == SVt_PVGV) { |
e476b1b5 GS |
3918 | if (ckWARN(WARN_MISC)) |
3919 | Perl_warner(aTHX_ WARN_MISC, "Undefined value assigned to typeglob"); | |
20408e3c GS |
3920 | } |
3921 | else | |
3922 | (void)SvOK_off(dstr); | |
a0d0e21e | 3923 | } |
27c9684d AP |
3924 | if (SvTAINTED(sstr)) |
3925 | SvTAINT(dstr); | |
79072805 LW |
3926 | } |
3927 | ||
954c1994 GS |
3928 | /* |
3929 | =for apidoc sv_setsv_mg | |
3930 | ||
3931 | Like C<sv_setsv>, but also handles 'set' magic. | |
3932 | ||
3933 | =cut | |
3934 | */ | |
3935 | ||
79072805 | 3936 | void |
864dbfa3 | 3937 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
3938 | { |
3939 | sv_setsv(dstr,sstr); | |
3940 | SvSETMAGIC(dstr); | |
3941 | } | |
3942 | ||
954c1994 GS |
3943 | /* |
3944 | =for apidoc sv_setpvn | |
3945 | ||
3946 | Copies a string into an SV. The C<len> parameter indicates the number of | |
3947 | bytes to be copied. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
3948 | ||
3949 | =cut | |
3950 | */ | |
3951 | ||
ef50df4b | 3952 | void |
864dbfa3 | 3953 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 3954 | { |
c6f8c383 | 3955 | register char *dptr; |
22c522df | 3956 | |
2213622d | 3957 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 3958 | if (!ptr) { |
a0d0e21e | 3959 | (void)SvOK_off(sv); |
463ee0b2 LW |
3960 | return; |
3961 | } | |
22c522df JH |
3962 | else { |
3963 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
3964 | IV iv = len; | |
9c5ffd7c JH |
3965 | if (iv < 0) |
3966 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 3967 | } |
6fc92669 | 3968 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 3969 | |
79072805 | 3970 | SvGROW(sv, len + 1); |
c6f8c383 GA |
3971 | dptr = SvPVX(sv); |
3972 | Move(ptr,dptr,len,char); | |
3973 | dptr[len] = '\0'; | |
79072805 | 3974 | SvCUR_set(sv, len); |
1aa99e6b | 3975 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 3976 | SvTAINT(sv); |
79072805 LW |
3977 | } |
3978 | ||
954c1994 GS |
3979 | /* |
3980 | =for apidoc sv_setpvn_mg | |
3981 | ||
3982 | Like C<sv_setpvn>, but also handles 'set' magic. | |
3983 | ||
3984 | =cut | |
3985 | */ | |
3986 | ||
79072805 | 3987 | void |
864dbfa3 | 3988 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
3989 | { |
3990 | sv_setpvn(sv,ptr,len); | |
3991 | SvSETMAGIC(sv); | |
3992 | } | |
3993 | ||
954c1994 GS |
3994 | /* |
3995 | =for apidoc sv_setpv | |
3996 | ||
3997 | Copies a string into an SV. The string must be null-terminated. Does not | |
3998 | handle 'set' magic. See C<sv_setpv_mg>. | |
3999 | ||
4000 | =cut | |
4001 | */ | |
4002 | ||
ef50df4b | 4003 | void |
864dbfa3 | 4004 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4005 | { |
4006 | register STRLEN len; | |
4007 | ||
2213622d | 4008 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4009 | if (!ptr) { |
a0d0e21e | 4010 | (void)SvOK_off(sv); |
463ee0b2 LW |
4011 | return; |
4012 | } | |
79072805 | 4013 | len = strlen(ptr); |
6fc92669 | 4014 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4015 | |
79072805 | 4016 | SvGROW(sv, len + 1); |
463ee0b2 | 4017 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4018 | SvCUR_set(sv, len); |
1aa99e6b | 4019 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4020 | SvTAINT(sv); |
4021 | } | |
4022 | ||
954c1994 GS |
4023 | /* |
4024 | =for apidoc sv_setpv_mg | |
4025 | ||
4026 | Like C<sv_setpv>, but also handles 'set' magic. | |
4027 | ||
4028 | =cut | |
4029 | */ | |
4030 | ||
463ee0b2 | 4031 | void |
864dbfa3 | 4032 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4033 | { |
4034 | sv_setpv(sv,ptr); | |
4035 | SvSETMAGIC(sv); | |
4036 | } | |
4037 | ||
954c1994 GS |
4038 | /* |
4039 | =for apidoc sv_usepvn | |
4040 | ||
4041 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4042 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4043 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4044 | string length, C<len>, must be supplied. This function will realloc the | |
4045 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4046 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4047 | See C<sv_usepvn_mg>. | |
4048 | ||
4049 | =cut | |
4050 | */ | |
4051 | ||
ef50df4b | 4052 | void |
864dbfa3 | 4053 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4054 | { |
2213622d | 4055 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 4056 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4057 | if (!ptr) { |
a0d0e21e | 4058 | (void)SvOK_off(sv); |
463ee0b2 LW |
4059 | return; |
4060 | } | |
a0ed51b3 | 4061 | (void)SvOOK_off(sv); |
50483b2c | 4062 | if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 LW |
4063 | Safefree(SvPVX(sv)); |
4064 | Renew(ptr, len+1, char); | |
4065 | SvPVX(sv) = ptr; | |
4066 | SvCUR_set(sv, len); | |
4067 | SvLEN_set(sv, len+1); | |
4068 | *SvEND(sv) = '\0'; | |
1aa99e6b | 4069 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4070 | SvTAINT(sv); |
79072805 LW |
4071 | } |
4072 | ||
954c1994 GS |
4073 | /* |
4074 | =for apidoc sv_usepvn_mg | |
4075 | ||
4076 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4077 | ||
4078 | =cut | |
4079 | */ | |
4080 | ||
ef50df4b | 4081 | void |
864dbfa3 | 4082 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4083 | { |
51c1089b | 4084 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4085 | SvSETMAGIC(sv); |
4086 | } | |
4087 | ||
645c22ef DM |
4088 | /* |
4089 | =for apidoc sv_force_normal_flags | |
4090 | ||
4091 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4092 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4093 | an xpvmg. The C<flags> parameter gets passed to C<sv_unref_flags()> | |
4094 | when unrefing. C<sv_force_normal> calls this function with flags set to 0. | |
4095 | ||
4096 | =cut | |
4097 | */ | |
4098 | ||
6fc92669 | 4099 | void |
840a7b70 | 4100 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4101 | { |
2213622d | 4102 | if (SvREADONLY(sv)) { |
1c846c1f NIS |
4103 | if (SvFAKE(sv)) { |
4104 | char *pvx = SvPVX(sv); | |
4105 | STRLEN len = SvCUR(sv); | |
4106 | U32 hash = SvUVX(sv); | |
4107 | SvGROW(sv, len + 1); | |
4108 | Move(pvx,SvPVX(sv),len,char); | |
4109 | *SvEND(sv) = '\0'; | |
4110 | SvFAKE_off(sv); | |
4111 | SvREADONLY_off(sv); | |
25716404 | 4112 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)len : len, hash); |
1c846c1f NIS |
4113 | } |
4114 | else if (PL_curcop != &PL_compiling) | |
cea2e8a9 | 4115 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4116 | } |
2213622d | 4117 | if (SvROK(sv)) |
840a7b70 | 4118 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4119 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4120 | sv_unglob(sv); | |
0f15f207 | 4121 | } |
1c846c1f | 4122 | |
645c22ef DM |
4123 | /* |
4124 | =for apidoc sv_force_normal | |
4125 | ||
4126 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4127 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4128 | an xpvmg. See also C<sv_force_normal_flags>. | |
4129 | ||
4130 | =cut | |
4131 | */ | |
4132 | ||
840a7b70 IZ |
4133 | void |
4134 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4135 | { | |
4136 | sv_force_normal_flags(sv, 0); | |
4137 | } | |
4138 | ||
954c1994 GS |
4139 | /* |
4140 | =for apidoc sv_chop | |
4141 | ||
1c846c1f | 4142 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4143 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4144 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4145 | string. Uses the "OOK hack". |
954c1994 GS |
4146 | |
4147 | =cut | |
4148 | */ | |
4149 | ||
79072805 | 4150 | void |
645c22ef | 4151 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
4152 | { |
4153 | register STRLEN delta; | |
4154 | ||
a0d0e21e | 4155 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4156 | return; |
2213622d | 4157 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4158 | if (SvTYPE(sv) < SVt_PVIV) |
4159 | sv_upgrade(sv,SVt_PVIV); | |
4160 | ||
4161 | if (!SvOOK(sv)) { | |
50483b2c JD |
4162 | if (!SvLEN(sv)) { /* make copy of shared string */ |
4163 | char *pvx = SvPVX(sv); | |
4164 | STRLEN len = SvCUR(sv); | |
4165 | SvGROW(sv, len + 1); | |
4166 | Move(pvx,SvPVX(sv),len,char); | |
4167 | *SvEND(sv) = '\0'; | |
4168 | } | |
463ee0b2 | 4169 | SvIVX(sv) = 0; |
79072805 LW |
4170 | SvFLAGS(sv) |= SVf_OOK; |
4171 | } | |
25da4f38 | 4172 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV); |
463ee0b2 | 4173 | delta = ptr - SvPVX(sv); |
79072805 LW |
4174 | SvLEN(sv) -= delta; |
4175 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
4176 | SvPVX(sv) += delta; |
4177 | SvIVX(sv) += delta; | |
79072805 LW |
4178 | } |
4179 | ||
954c1994 GS |
4180 | /* |
4181 | =for apidoc sv_catpvn | |
4182 | ||
4183 | Concatenates the string onto the end of the string which is in the SV. The | |
d5ce4a7c GA |
4184 | C<len> indicates number of bytes to copy. If the SV has the UTF8 |
4185 | status set, then the bytes appended should be valid UTF8. | |
4186 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. | |
954c1994 GS |
4187 | |
4188 | =cut | |
4189 | */ | |
4190 | ||
8d6d96c1 HS |
4191 | /* sv_catpvn() is aliased to Perl_sv_catpvn_macro; this function provided |
4192 | for binary compatibility only | |
4193 | */ | |
79072805 | 4194 | void |
8d6d96c1 | 4195 | Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen) |
79072805 | 4196 | { |
8d6d96c1 HS |
4197 | sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC); |
4198 | } | |
a0d0e21e | 4199 | |
8d6d96c1 HS |
4200 | /* |
4201 | =for apidoc sv_catpvn_flags | |
4202 | ||
4203 | Concatenates the string onto the end of the string which is in the SV. The | |
4204 | C<len> indicates number of bytes to copy. If the SV has the UTF8 | |
4205 | status set, then the bytes appended should be valid UTF8. | |
4206 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if | |
4207 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4208 | in terms of this function. | |
4209 | ||
4210 | =cut | |
4211 | */ | |
4212 | ||
4213 | void | |
4214 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4215 | { | |
4216 | STRLEN dlen; | |
4217 | char *dstr; | |
4218 | ||
4219 | dstr = SvPV_force_flags(dsv, dlen, flags); | |
4220 | SvGROW(dsv, dlen + slen + 1); | |
4221 | if (sstr == dstr) | |
4222 | sstr = SvPVX(dsv); | |
4223 | Move(sstr, SvPVX(dsv) + dlen, slen, char); | |
4224 | SvCUR(dsv) += slen; | |
4225 | *SvEND(dsv) = '\0'; | |
4226 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4227 | SvTAINT(dsv); | |
79072805 LW |
4228 | } |
4229 | ||
954c1994 GS |
4230 | /* |
4231 | =for apidoc sv_catpvn_mg | |
4232 | ||
4233 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4234 | ||
4235 | =cut | |
4236 | */ | |
4237 | ||
79072805 | 4238 | void |
864dbfa3 | 4239 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4240 | { |
4241 | sv_catpvn(sv,ptr,len); | |
4242 | SvSETMAGIC(sv); | |
4243 | } | |
4244 | ||
954c1994 GS |
4245 | /* |
4246 | =for apidoc sv_catsv | |
4247 | ||
13e8c8e3 JH |
4248 | Concatenates the string from SV C<ssv> onto the end of the string in |
4249 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4250 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4251 | |
13e8c8e3 | 4252 | =cut */ |
954c1994 | 4253 | |
8d6d96c1 HS |
4254 | /* sv_catsv() is aliased to Perl_sv_catsv_macro; this function provided |
4255 | for binary compatibility only | |
4256 | */ | |
4257 | void | |
4258 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) | |
4259 | { | |
4260 | sv_catsv_flags(dstr, sstr, SV_GMAGIC); | |
4261 | } | |
4262 | ||
4263 | /* | |
4264 | =for apidoc sv_catsv_flags | |
4265 | ||
4266 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4267 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4268 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4269 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4270 | ||
4271 | =cut */ | |
4272 | ||
ef50df4b | 4273 | void |
8d6d96c1 | 4274 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4275 | { |
13e8c8e3 JH |
4276 | char *spv; |
4277 | STRLEN slen; | |
46199a12 | 4278 | if (!ssv) |
79072805 | 4279 | return; |
46199a12 | 4280 | if ((spv = SvPV(ssv, slen))) { |
46199a12 | 4281 | bool sutf8 = DO_UTF8(ssv); |
8d6d96c1 | 4282 | bool dutf8; |
13e8c8e3 | 4283 | |
8d6d96c1 HS |
4284 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4285 | mg_get(dsv); | |
4286 | dutf8 = DO_UTF8(dsv); | |
4287 | ||
4288 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4289 | if (dutf8) { |
46199a12 | 4290 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4291 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4292 | |
46199a12 | 4293 | sv_utf8_upgrade(csv); |
8d6d96c1 | 4294 | spv = SvPV(csv, slen); |
13e8c8e3 | 4295 | } |
8d6d96c1 HS |
4296 | else |
4297 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4298 | } |
8d6d96c1 | 4299 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4300 | } |
79072805 LW |
4301 | } |
4302 | ||
954c1994 GS |
4303 | /* |
4304 | =for apidoc sv_catsv_mg | |
4305 | ||
4306 | Like C<sv_catsv>, but also handles 'set' magic. | |
4307 | ||
4308 | =cut | |
4309 | */ | |
4310 | ||
79072805 | 4311 | void |
46199a12 | 4312 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4313 | { |
46199a12 JH |
4314 | sv_catsv(dsv,ssv); |
4315 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4316 | } |
4317 | ||
954c1994 GS |
4318 | /* |
4319 | =for apidoc sv_catpv | |
4320 | ||
4321 | Concatenates the string onto the end of the string which is in the SV. | |
d5ce4a7c GA |
4322 | If the SV has the UTF8 status set, then the bytes appended should be |
4323 | valid UTF8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4324 | |
d5ce4a7c | 4325 | =cut */ |
954c1994 | 4326 | |
ef50df4b | 4327 | void |
0c981600 | 4328 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4329 | { |
4330 | register STRLEN len; | |
463ee0b2 | 4331 | STRLEN tlen; |
748a9306 | 4332 | char *junk; |
79072805 | 4333 | |
0c981600 | 4334 | if (!ptr) |
79072805 | 4335 | return; |
748a9306 | 4336 | junk = SvPV_force(sv, tlen); |
0c981600 | 4337 | len = strlen(ptr); |
463ee0b2 | 4338 | SvGROW(sv, tlen + len + 1); |
0c981600 JH |
4339 | if (ptr == junk) |
4340 | ptr = SvPVX(sv); | |
4341 | Move(ptr,SvPVX(sv)+tlen,len+1,char); | |
79072805 | 4342 | SvCUR(sv) += len; |
d41ff1b8 | 4343 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4344 | SvTAINT(sv); |
79072805 LW |
4345 | } |
4346 | ||
954c1994 GS |
4347 | /* |
4348 | =for apidoc sv_catpv_mg | |
4349 | ||
4350 | Like C<sv_catpv>, but also handles 'set' magic. | |
4351 | ||
4352 | =cut | |
4353 | */ | |
4354 | ||
ef50df4b | 4355 | void |
0c981600 | 4356 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4357 | { |
0c981600 | 4358 | sv_catpv(sv,ptr); |
ef50df4b GS |
4359 | SvSETMAGIC(sv); |
4360 | } | |
4361 | ||
645c22ef DM |
4362 | /* |
4363 | =for apidoc newSV | |
4364 | ||
4365 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4366 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4367 | macro. | |
4368 | ||
4369 | =cut | |
4370 | */ | |
4371 | ||
79072805 | 4372 | SV * |
864dbfa3 | 4373 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4374 | { |
4375 | register SV *sv; | |
1c846c1f | 4376 | |
4561caa4 | 4377 | new_SV(sv); |
79072805 LW |
4378 | if (len) { |
4379 | sv_upgrade(sv, SVt_PV); | |
4380 | SvGROW(sv, len + 1); | |
4381 | } | |
4382 | return sv; | |
4383 | } | |
4384 | ||
954c1994 GS |
4385 | /* |
4386 | =for apidoc sv_magic | |
4387 | ||
645c22ef DM |
4388 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4389 | then adds a new magic item of type C<how> to the head of the magic list. | |
4390 | ||
4391 | C<name> is assumed to contain an C<SV*> if C<(name && namelen == HEf_SVKEY)> | |
954c1994 GS |
4392 | |
4393 | =cut | |
4394 | */ | |
4395 | ||
79072805 | 4396 | void |
864dbfa3 | 4397 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) |
79072805 LW |
4398 | { |
4399 | MAGIC* mg; | |
1c846c1f | 4400 | |
0f15f207 | 4401 | if (SvREADONLY(sv)) { |
14befaf4 | 4402 | if (PL_curcop != &PL_compiling |
14befaf4 DM |
4403 | && how != PERL_MAGIC_regex_global |
4404 | && how != PERL_MAGIC_bm | |
4405 | && how != PERL_MAGIC_fm | |
6fa402ec | 4406 | && how != PERL_MAGIC_sv |
14befaf4 DM |
4407 | ) |
4408 | { | |
cea2e8a9 | 4409 | Perl_croak(aTHX_ PL_no_modify); |
14befaf4 | 4410 | } |
0f15f207 | 4411 | } |
14befaf4 | 4412 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { |
748a9306 | 4413 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { |
14befaf4 | 4414 | if (how == PERL_MAGIC_taint) |
565764a8 | 4415 | mg->mg_len |= 1; |
463ee0b2 | 4416 | return; |
748a9306 | 4417 | } |
463ee0b2 LW |
4418 | } |
4419 | else { | |
c6f8c383 | 4420 | (void)SvUPGRADE(sv, SVt_PVMG); |
463ee0b2 | 4421 | } |
79072805 LW |
4422 | Newz(702,mg, 1, MAGIC); |
4423 | mg->mg_moremagic = SvMAGIC(sv); | |
79072805 | 4424 | SvMAGIC(sv) = mg; |
75f9d97a | 4425 | |
55d27857 RG |
4426 | /* Some magic contains a reference loop, where the sv and object refer to |
4427 | each other. To avoid a reference loop that would prevent such objects | |
4428 | being freed, we look for such loops and if we find one we avoid | |
75f9d97a | 4429 | incrementing the object refcount. */ |
14befaf4 DM |
4430 | if (!obj || obj == sv || |
4431 | how == PERL_MAGIC_arylen || | |
4432 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
4433 | (SvTYPE(obj) == SVt_PVGV && |
4434 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4435 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
4436 | GvFORM(obj) == (CV*)sv))) | |
4437 | { | |
8990e307 | 4438 | mg->mg_obj = obj; |
75f9d97a | 4439 | } |
85e6fe83 | 4440 | else { |
8990e307 | 4441 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4442 | mg->mg_flags |= MGf_REFCOUNTED; |
4443 | } | |
79072805 | 4444 | mg->mg_type = how; |
565764a8 | 4445 | mg->mg_len = namlen; |
9cbac4c7 | 4446 | if (name) { |
1edc1566 | 4447 | if (namlen >= 0) |
4448 | mg->mg_ptr = savepvn(name, namlen); | |
c6ee37c5 | 4449 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4450 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
9cbac4c7 | 4451 | } |
1c846c1f | 4452 | |
79072805 | 4453 | switch (how) { |
14befaf4 | 4454 | case PERL_MAGIC_sv: |
22c35a8c | 4455 | mg->mg_virtual = &PL_vtbl_sv; |
79072805 | 4456 | break; |
14befaf4 | 4457 | case PERL_MAGIC_overload: |
22c35a8c | 4458 | mg->mg_virtual = &PL_vtbl_amagic; |
a0d0e21e | 4459 | break; |
14befaf4 | 4460 | case PERL_MAGIC_overload_elem: |
22c35a8c | 4461 | mg->mg_virtual = &PL_vtbl_amagicelem; |
a0d0e21e | 4462 | break; |
14befaf4 | 4463 | case PERL_MAGIC_overload_table: |
d460ef45 | 4464 | mg->mg_virtual = &PL_vtbl_ovrld; |
a0d0e21e | 4465 | break; |
14befaf4 | 4466 | case PERL_MAGIC_bm: |
22c35a8c | 4467 | mg->mg_virtual = &PL_vtbl_bm; |
79072805 | 4468 | break; |
14befaf4 | 4469 | case PERL_MAGIC_regdata: |
22c35a8c | 4470 | mg->mg_virtual = &PL_vtbl_regdata; |
6cef1e77 | 4471 | break; |
14befaf4 | 4472 | case PERL_MAGIC_regdatum: |
22c35a8c | 4473 | mg->mg_virtual = &PL_vtbl_regdatum; |
6cef1e77 | 4474 | break; |
14befaf4 | 4475 | case PERL_MAGIC_env: |
22c35a8c | 4476 | mg->mg_virtual = &PL_vtbl_env; |
79072805 | 4477 | break; |
14befaf4 | 4478 | case PERL_MAGIC_fm: |
22c35a8c | 4479 | mg->mg_virtual = &PL_vtbl_fm; |
55497cff | 4480 | break; |
14befaf4 | 4481 | case PERL_MAGIC_envelem: |
22c35a8c | 4482 | mg->mg_virtual = &PL_vtbl_envelem; |
79072805 | 4483 | break; |
14befaf4 | 4484 | case PERL_MAGIC_regex_global: |
22c35a8c | 4485 | mg->mg_virtual = &PL_vtbl_mglob; |
93a17b20 | 4486 | break; |
14befaf4 | 4487 | case PERL_MAGIC_isa: |
22c35a8c | 4488 | mg->mg_virtual = &PL_vtbl_isa; |
463ee0b2 | 4489 | break; |
14befaf4 | 4490 | case PERL_MAGIC_isaelem: |
22c35a8c | 4491 | mg->mg_virtual = &PL_vtbl_isaelem; |
463ee0b2 | 4492 | break; |
14befaf4 | 4493 | case PERL_MAGIC_nkeys: |
22c35a8c | 4494 | mg->mg_virtual = &PL_vtbl_nkeys; |
16660edb | 4495 | break; |
14befaf4 | 4496 | case PERL_MAGIC_dbfile: |
a0d0e21e | 4497 | SvRMAGICAL_on(sv); |
93a17b20 LW |
4498 | mg->mg_virtual = 0; |
4499 | break; | |
14befaf4 | 4500 | case PERL_MAGIC_dbline: |
22c35a8c | 4501 | mg->mg_virtual = &PL_vtbl_dbline; |
79072805 | 4502 | break; |
4d1ff10f | 4503 | #ifdef USE_5005THREADS |
14befaf4 | 4504 | case PERL_MAGIC_mutex: |
22c35a8c | 4505 | mg->mg_virtual = &PL_vtbl_mutex; |
f93b4edd | 4506 | break; |
4d1ff10f | 4507 | #endif /* USE_5005THREADS */ |
36477c24 | 4508 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 4509 | case PERL_MAGIC_collxfrm: |
22c35a8c | 4510 | mg->mg_virtual = &PL_vtbl_collxfrm; |
bbce6d69 | 4511 | break; |
36477c24 | 4512 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 4513 | case PERL_MAGIC_tied: |
22c35a8c | 4514 | mg->mg_virtual = &PL_vtbl_pack; |
463ee0b2 | 4515 | break; |
14befaf4 DM |
4516 | case PERL_MAGIC_tiedelem: |
4517 | case PERL_MAGIC_tiedscalar: | |
22c35a8c | 4518 | mg->mg_virtual = &PL_vtbl_packelem; |
463ee0b2 | 4519 | break; |
14befaf4 | 4520 | case PERL_MAGIC_qr: |
22c35a8c | 4521 | mg->mg_virtual = &PL_vtbl_regexp; |
c277df42 | 4522 | break; |
14befaf4 | 4523 | case PERL_MAGIC_sig: |
22c35a8c | 4524 | mg->mg_virtual = &PL_vtbl_sig; |
79072805 | 4525 | break; |
14befaf4 | 4526 | case PERL_MAGIC_sigelem: |
22c35a8c | 4527 | mg->mg_virtual = &PL_vtbl_sigelem; |
79072805 | 4528 | break; |
14befaf4 | 4529 | case PERL_MAGIC_taint: |
22c35a8c | 4530 | mg->mg_virtual = &PL_vtbl_taint; |
565764a8 | 4531 | mg->mg_len = 1; |
463ee0b2 | 4532 | break; |
14befaf4 | 4533 | case PERL_MAGIC_uvar: |
22c35a8c | 4534 | mg->mg_virtual = &PL_vtbl_uvar; |
79072805 | 4535 | break; |
14befaf4 | 4536 | case PERL_MAGIC_vec: |
22c35a8c | 4537 | mg->mg_virtual = &PL_vtbl_vec; |
79072805 | 4538 | break; |
14befaf4 | 4539 | case PERL_MAGIC_substr: |
22c35a8c | 4540 | mg->mg_virtual = &PL_vtbl_substr; |
79072805 | 4541 | break; |
14befaf4 | 4542 | case PERL_MAGIC_defelem: |
22c35a8c | 4543 | mg->mg_virtual = &PL_vtbl_defelem; |
5f05dabc | 4544 | break; |
14befaf4 | 4545 | case PERL_MAGIC_glob: |
22c35a8c | 4546 | mg->mg_virtual = &PL_vtbl_glob; |
79072805 | 4547 | break; |
14befaf4 | 4548 | case PERL_MAGIC_arylen: |
22c35a8c | 4549 | mg->mg_virtual = &PL_vtbl_arylen; |
79072805 | 4550 | break; |
14befaf4 | 4551 | case PERL_MAGIC_pos: |
22c35a8c | 4552 | mg->mg_virtual = &PL_vtbl_pos; |
a0d0e21e | 4553 | break; |
14befaf4 | 4554 | case PERL_MAGIC_backref: |
810b8aa5 GS |
4555 | mg->mg_virtual = &PL_vtbl_backref; |
4556 | break; | |
14befaf4 DM |
4557 | case PERL_MAGIC_ext: |
4558 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
4559 | /* Useful for attaching extension internal data to perl vars. */ |
4560 | /* Note that multiple extensions may clash if magical scalars */ | |
4561 | /* etc holding private data from one are passed to another. */ | |
4562 | SvRMAGICAL_on(sv); | |
a0d0e21e | 4563 | break; |
79072805 | 4564 | default: |
14befaf4 | 4565 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 4566 | } |
8990e307 LW |
4567 | mg_magical(sv); |
4568 | if (SvGMAGICAL(sv)) | |
4569 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 LW |
4570 | } |
4571 | ||
c461cf8f JH |
4572 | /* |
4573 | =for apidoc sv_unmagic | |
4574 | ||
645c22ef | 4575 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
4576 | |
4577 | =cut | |
4578 | */ | |
4579 | ||
463ee0b2 | 4580 | int |
864dbfa3 | 4581 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
4582 | { |
4583 | MAGIC* mg; | |
4584 | MAGIC** mgp; | |
91bba347 | 4585 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
4586 | return 0; |
4587 | mgp = &SvMAGIC(sv); | |
4588 | for (mg = *mgp; mg; mg = *mgp) { | |
4589 | if (mg->mg_type == type) { | |
4590 | MGVTBL* vtbl = mg->mg_virtual; | |
4591 | *mgp = mg->mg_moremagic; | |
1d7c1841 | 4592 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 4593 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 4594 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
565764a8 | 4595 | if (mg->mg_len >= 0) |
1edc1566 | 4596 | Safefree(mg->mg_ptr); |
565764a8 | 4597 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 4598 | SvREFCNT_dec((SV*)mg->mg_ptr); |
9cbac4c7 | 4599 | } |
a0d0e21e LW |
4600 | if (mg->mg_flags & MGf_REFCOUNTED) |
4601 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
4602 | Safefree(mg); |
4603 | } | |
4604 | else | |
4605 | mgp = &mg->mg_moremagic; | |
79072805 | 4606 | } |
91bba347 | 4607 | if (!SvMAGIC(sv)) { |
463ee0b2 | 4608 | SvMAGICAL_off(sv); |
06759ea0 | 4609 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
4610 | } |
4611 | ||
4612 | return 0; | |
79072805 LW |
4613 | } |
4614 | ||
c461cf8f JH |
4615 | /* |
4616 | =for apidoc sv_rvweaken | |
4617 | ||
645c22ef DM |
4618 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
4619 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
4620 | push a back-reference to this RV onto the array of backreferences | |
4621 | associated with that magic. | |
c461cf8f JH |
4622 | |
4623 | =cut | |
4624 | */ | |
4625 | ||
810b8aa5 | 4626 | SV * |
864dbfa3 | 4627 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
4628 | { |
4629 | SV *tsv; | |
4630 | if (!SvOK(sv)) /* let undefs pass */ | |
4631 | return sv; | |
4632 | if (!SvROK(sv)) | |
cea2e8a9 | 4633 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 4634 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 4635 | if (ckWARN(WARN_MISC)) |
cea2e8a9 | 4636 | Perl_warner(aTHX_ WARN_MISC, "Reference is already weak"); |
810b8aa5 GS |
4637 | return sv; |
4638 | } | |
4639 | tsv = SvRV(sv); | |
4640 | sv_add_backref(tsv, sv); | |
4641 | SvWEAKREF_on(sv); | |
1c846c1f | 4642 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
4643 | return sv; |
4644 | } | |
4645 | ||
645c22ef DM |
4646 | /* Give tsv backref magic if it hasn't already got it, then push a |
4647 | * back-reference to sv onto the array associated with the backref magic. | |
4648 | */ | |
4649 | ||
810b8aa5 | 4650 | STATIC void |
cea2e8a9 | 4651 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
4652 | { |
4653 | AV *av; | |
4654 | MAGIC *mg; | |
14befaf4 | 4655 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
4656 | av = (AV*)mg->mg_obj; |
4657 | else { | |
4658 | av = newAV(); | |
14befaf4 | 4659 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
810b8aa5 GS |
4660 | SvREFCNT_dec(av); /* for sv_magic */ |
4661 | } | |
4662 | av_push(av,sv); | |
4663 | } | |
4664 | ||
645c22ef DM |
4665 | /* delete a back-reference to ourselves from the backref magic associated |
4666 | * with the SV we point to. | |
4667 | */ | |
4668 | ||
1c846c1f | 4669 | STATIC void |
cea2e8a9 | 4670 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
4671 | { |
4672 | AV *av; | |
4673 | SV **svp; | |
4674 | I32 i; | |
4675 | SV *tsv = SvRV(sv); | |
4676 | MAGIC *mg; | |
14befaf4 | 4677 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 4678 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
4679 | av = (AV *)mg->mg_obj; |
4680 | svp = AvARRAY(av); | |
4681 | i = AvFILLp(av); | |
4682 | while (i >= 0) { | |
4683 | if (svp[i] == sv) { | |
4684 | svp[i] = &PL_sv_undef; /* XXX */ | |
4685 | } | |
4686 | i--; | |
4687 | } | |
4688 | } | |
4689 | ||
954c1994 GS |
4690 | /* |
4691 | =for apidoc sv_insert | |
4692 | ||
4693 | Inserts a string at the specified offset/length within the SV. Similar to | |
4694 | the Perl substr() function. | |
4695 | ||
4696 | =cut | |
4697 | */ | |
4698 | ||
79072805 | 4699 | void |
864dbfa3 | 4700 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
4701 | { |
4702 | register char *big; | |
4703 | register char *mid; | |
4704 | register char *midend; | |
4705 | register char *bigend; | |
4706 | register I32 i; | |
6ff81951 | 4707 | STRLEN curlen; |
1c846c1f | 4708 | |
79072805 | 4709 | |
8990e307 | 4710 | if (!bigstr) |
cea2e8a9 | 4711 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 4712 | SvPV_force(bigstr, curlen); |
60fa28ff | 4713 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
4714 | if (offset + len > curlen) { |
4715 | SvGROW(bigstr, offset+len+1); | |
4716 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
4717 | SvCUR_set(bigstr, offset+len); | |
4718 | } | |
79072805 | 4719 | |
69b47968 | 4720 | SvTAINT(bigstr); |
79072805 LW |
4721 | i = littlelen - len; |
4722 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 4723 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
4724 | mid = big + offset + len; |
4725 | midend = bigend = big + SvCUR(bigstr); | |
4726 | bigend += i; | |
4727 | *bigend = '\0'; | |
4728 | while (midend > mid) /* shove everything down */ | |
4729 | *--bigend = *--midend; | |
4730 | Move(little,big+offset,littlelen,char); | |
4731 | SvCUR(bigstr) += i; | |
4732 | SvSETMAGIC(bigstr); | |
4733 | return; | |
4734 | } | |
4735 | else if (i == 0) { | |
463ee0b2 | 4736 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
4737 | SvSETMAGIC(bigstr); |
4738 | return; | |
4739 | } | |
4740 | ||
463ee0b2 | 4741 | big = SvPVX(bigstr); |
79072805 LW |
4742 | mid = big + offset; |
4743 | midend = mid + len; | |
4744 | bigend = big + SvCUR(bigstr); | |
4745 | ||
4746 | if (midend > bigend) | |
cea2e8a9 | 4747 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
4748 | |
4749 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
4750 | if (littlelen) { | |
4751 | Move(little, mid, littlelen,char); | |
4752 | mid += littlelen; | |
4753 | } | |
4754 | i = bigend - midend; | |
4755 | if (i > 0) { | |
4756 | Move(midend, mid, i,char); | |
4757 | mid += i; | |
4758 | } | |
4759 | *mid = '\0'; | |
4760 | SvCUR_set(bigstr, mid - big); | |
4761 | } | |
4762 | /*SUPPRESS 560*/ | |
155aba94 | 4763 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
4764 | midend -= littlelen; |
4765 | mid = midend; | |
4766 | sv_chop(bigstr,midend-i); | |
4767 | big += i; | |
4768 | while (i--) | |
4769 | *--midend = *--big; | |
4770 | if (littlelen) | |
4771 | Move(little, mid, littlelen,char); | |
4772 | } | |
4773 | else if (littlelen) { | |
4774 | midend -= littlelen; | |
4775 | sv_chop(bigstr,midend); | |
4776 | Move(little,midend,littlelen,char); | |
4777 | } | |
4778 | else { | |
4779 | sv_chop(bigstr,midend); | |
4780 | } | |
4781 | SvSETMAGIC(bigstr); | |
4782 | } | |
4783 | ||
c461cf8f JH |
4784 | /* |
4785 | =for apidoc sv_replace | |
4786 | ||
4787 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
4788 | The target SV physically takes over ownership of the body of the source SV |
4789 | and inherits its flags; however, the target keeps any magic it owns, | |
4790 | and any magic in the source is discarded. | |
ff276b08 | 4791 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 4792 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
4793 | |
4794 | =cut | |
4795 | */ | |
79072805 LW |
4796 | |
4797 | void | |
864dbfa3 | 4798 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 LW |
4799 | { |
4800 | U32 refcnt = SvREFCNT(sv); | |
2213622d | 4801 | SV_CHECK_THINKFIRST(sv); |
0453d815 PM |
4802 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
4803 | Perl_warner(aTHX_ WARN_INTERNAL, "Reference miscount in sv_replace()"); | |
93a17b20 | 4804 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
4805 | if (SvMAGICAL(nsv)) |
4806 | mg_free(nsv); | |
4807 | else | |
4808 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 4809 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 4810 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
4811 | SvMAGICAL_off(sv); |
4812 | SvMAGIC(sv) = 0; | |
4813 | } | |
79072805 LW |
4814 | SvREFCNT(sv) = 0; |
4815 | sv_clear(sv); | |
477f5d66 | 4816 | assert(!SvREFCNT(sv)); |
79072805 LW |
4817 | StructCopy(nsv,sv,SV); |
4818 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 4819 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
463ee0b2 | 4820 | del_SV(nsv); |
79072805 LW |
4821 | } |
4822 | ||
c461cf8f JH |
4823 | /* |
4824 | =for apidoc sv_clear | |
4825 | ||
645c22ef DM |
4826 | Clear an SV: call any destructors, free up any memory used by the body, |
4827 | and free the body itself. The SV's head is I<not> freed, although | |
4828 | its type is set to all 1's so that it won't inadvertently be assumed | |
4829 | to be live during global destruction etc. | |
4830 | This function should only be called when REFCNT is zero. Most of the time | |
4831 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
4832 | instead. | |
c461cf8f JH |
4833 | |
4834 | =cut | |
4835 | */ | |
4836 | ||
79072805 | 4837 | void |
864dbfa3 | 4838 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 4839 | { |
ec12f114 | 4840 | HV* stash; |
79072805 LW |
4841 | assert(sv); |
4842 | assert(SvREFCNT(sv) == 0); | |
4843 | ||
ed6116ce | 4844 | if (SvOBJECT(sv)) { |
3280af22 | 4845 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 4846 | dSP; |
32251b26 | 4847 | CV* destructor; |
837485b6 | 4848 | SV tmpref; |
a0d0e21e | 4849 | |
837485b6 GS |
4850 | Zero(&tmpref, 1, SV); |
4851 | sv_upgrade(&tmpref, SVt_RV); | |
4852 | SvROK_on(&tmpref); | |
4853 | SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ | |
4854 | SvREFCNT(&tmpref) = 1; | |
8ebc5c01 | 4855 | |
d460ef45 | 4856 | do { |
4e8e7886 | 4857 | stash = SvSTASH(sv); |
32251b26 | 4858 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 GS |
4859 | if (destructor) { |
4860 | ENTER; | |
e788e7d3 | 4861 | PUSHSTACKi(PERLSI_DESTROY); |
837485b6 | 4862 | SvRV(&tmpref) = SvREFCNT_inc(sv); |
4e8e7886 GS |
4863 | EXTEND(SP, 2); |
4864 | PUSHMARK(SP); | |
837485b6 | 4865 | PUSHs(&tmpref); |
4e8e7886 | 4866 | PUTBACK; |
32251b26 | 4867 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR); |
4e8e7886 | 4868 | SvREFCNT(sv)--; |
d3acc0f7 | 4869 | POPSTACK; |
3095d977 | 4870 | SPAGAIN; |
4e8e7886 GS |
4871 | LEAVE; |
4872 | } | |
4873 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 4874 | |
837485b6 | 4875 | del_XRV(SvANY(&tmpref)); |
6f44e0a4 JP |
4876 | |
4877 | if (SvREFCNT(sv)) { | |
4878 | if (PL_in_clean_objs) | |
cea2e8a9 | 4879 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
6f44e0a4 JP |
4880 | HvNAME(stash)); |
4881 | /* DESTROY gave object new lease on life */ | |
4882 | return; | |
4883 | } | |
a0d0e21e | 4884 | } |
4e8e7886 | 4885 | |
a0d0e21e | 4886 | if (SvOBJECT(sv)) { |
4e8e7886 | 4887 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
4888 | SvOBJECT_off(sv); /* Curse the object. */ |
4889 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 4890 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 4891 | } |
463ee0b2 | 4892 | } |
524189f1 JH |
4893 | if (SvTYPE(sv) >= SVt_PVMG) { |
4894 | if (SvMAGIC(sv)) | |
4895 | mg_free(sv); | |
4896 | if (SvFLAGS(sv) & SVpad_TYPED) | |
4897 | SvREFCNT_dec(SvSTASH(sv)); | |
4898 | } | |
ec12f114 | 4899 | stash = NULL; |
79072805 | 4900 | switch (SvTYPE(sv)) { |
8990e307 | 4901 | case SVt_PVIO: |
df0bd2f4 GS |
4902 | if (IoIFP(sv) && |
4903 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 4904 | IoIFP(sv) != PerlIO_stdout() && |
4905 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 4906 | { |
f2b5be74 | 4907 | io_close((IO*)sv, FALSE); |
93578b34 | 4908 | } |
1d7c1841 | 4909 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 4910 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 4911 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
4912 | Safefree(IoTOP_NAME(sv)); |
4913 | Safefree(IoFMT_NAME(sv)); | |
4914 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 4915 | /* FALL THROUGH */ |
79072805 | 4916 | case SVt_PVBM: |
a0d0e21e | 4917 | goto freescalar; |
79072805 | 4918 | case SVt_PVCV: |
748a9306 | 4919 | case SVt_PVFM: |
85e6fe83 | 4920 | cv_undef((CV*)sv); |
a0d0e21e | 4921 | goto freescalar; |
79072805 | 4922 | case SVt_PVHV: |
85e6fe83 | 4923 | hv_undef((HV*)sv); |
a0d0e21e | 4924 | break; |
79072805 | 4925 | case SVt_PVAV: |
85e6fe83 | 4926 | av_undef((AV*)sv); |
a0d0e21e | 4927 | break; |
02270b4e GS |
4928 | case SVt_PVLV: |
4929 | SvREFCNT_dec(LvTARG(sv)); | |
4930 | goto freescalar; | |
a0d0e21e | 4931 | case SVt_PVGV: |
1edc1566 | 4932 | gp_free((GV*)sv); |
a0d0e21e | 4933 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
4934 | /* cannot decrease stash refcount yet, as we might recursively delete |
4935 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
4936 | of stash until current sv is completely gone. | |
4937 | -- JohnPC, 27 Mar 1998 */ | |
4938 | stash = GvSTASH(sv); | |
a0d0e21e | 4939 | /* FALL THROUGH */ |
79072805 | 4940 | case SVt_PVMG: |
79072805 LW |
4941 | case SVt_PVNV: |
4942 | case SVt_PVIV: | |
a0d0e21e LW |
4943 | freescalar: |
4944 | (void)SvOOK_off(sv); | |
79072805 LW |
4945 | /* FALL THROUGH */ |
4946 | case SVt_PV: | |
a0d0e21e | 4947 | case SVt_RV: |
810b8aa5 GS |
4948 | if (SvROK(sv)) { |
4949 | if (SvWEAKREF(sv)) | |
4950 | sv_del_backref(sv); | |
4951 | else | |
4952 | SvREFCNT_dec(SvRV(sv)); | |
4953 | } | |
1edc1566 | 4954 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 4955 | Safefree(SvPVX(sv)); |
1c846c1f | 4956 | else if (SvPVX(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
25716404 GS |
4957 | unsharepvn(SvPVX(sv), |
4958 | SvUTF8(sv) ? -(I32)SvCUR(sv) : SvCUR(sv), | |
4959 | SvUVX(sv)); | |
1c846c1f NIS |
4960 | SvFAKE_off(sv); |
4961 | } | |
79072805 | 4962 | break; |
a0d0e21e | 4963 | /* |
79072805 | 4964 | case SVt_NV: |
79072805 | 4965 | case SVt_IV: |
79072805 LW |
4966 | case SVt_NULL: |
4967 | break; | |
a0d0e21e | 4968 | */ |
79072805 LW |
4969 | } |
4970 | ||
4971 | switch (SvTYPE(sv)) { | |
4972 | case SVt_NULL: | |
4973 | break; | |
79072805 LW |
4974 | case SVt_IV: |
4975 | del_XIV(SvANY(sv)); | |
4976 | break; | |
4977 | case SVt_NV: | |
4978 | del_XNV(SvANY(sv)); | |
4979 | break; | |
ed6116ce LW |
4980 | case SVt_RV: |
4981 | del_XRV(SvANY(sv)); | |
4982 | break; | |
79072805 LW |
4983 | case SVt_PV: |
4984 | del_XPV(SvANY(sv)); | |
4985 | break; | |
4986 | case SVt_PVIV: | |
4987 | del_XPVIV(SvANY(sv)); | |
4988 | break; | |
4989 | case SVt_PVNV: | |
4990 | del_XPVNV(SvANY(sv)); | |
4991 | break; | |
4992 | case SVt_PVMG: | |
4993 | del_XPVMG(SvANY(sv)); | |
4994 | break; | |
4995 | case SVt_PVLV: | |
4996 | del_XPVLV(SvANY(sv)); | |
4997 | break; | |
4998 | case SVt_PVAV: | |
4999 | del_XPVAV(SvANY(sv)); | |
5000 | break; | |
5001 | case SVt_PVHV: | |
5002 | del_XPVHV(SvANY(sv)); | |
5003 | break; | |
5004 | case SVt_PVCV: | |
5005 | del_XPVCV(SvANY(sv)); | |
5006 | break; | |
5007 | case SVt_PVGV: | |
5008 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
5009 | /* code duplication for increased performance. */ |
5010 | SvFLAGS(sv) &= SVf_BREAK; | |
5011 | SvFLAGS(sv) |= SVTYPEMASK; | |
5012 | /* decrease refcount of the stash that owns this GV, if any */ | |
5013 | if (stash) | |
5014 | SvREFCNT_dec(stash); | |
5015 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
5016 | case SVt_PVBM: |
5017 | del_XPVBM(SvANY(sv)); | |
5018 | break; | |
5019 | case SVt_PVFM: | |
5020 | del_XPVFM(SvANY(sv)); | |
5021 | break; | |
8990e307 LW |
5022 | case SVt_PVIO: |
5023 | del_XPVIO(SvANY(sv)); | |
5024 | break; | |
79072805 | 5025 | } |
a0d0e21e | 5026 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 5027 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
5028 | } |
5029 | ||
645c22ef DM |
5030 | /* |
5031 | =for apidoc sv_newref | |
5032 | ||
5033 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5034 | instead. | |
5035 | ||
5036 | =cut | |
5037 | */ | |
5038 | ||
79072805 | 5039 | SV * |
864dbfa3 | 5040 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5041 | { |
463ee0b2 | 5042 | if (sv) |
dce16143 | 5043 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
5044 | return sv; |
5045 | } | |
5046 | ||
c461cf8f JH |
5047 | /* |
5048 | =for apidoc sv_free | |
5049 | ||
645c22ef DM |
5050 | Decrement an SV's reference count, and if it drops to zero, call |
5051 | C<sv_clear> to invoke destructors and free up any memory used by | |
5052 | the body; finally, deallocate the SV's head itself. | |
5053 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5054 | |
5055 | =cut | |
5056 | */ | |
5057 | ||
79072805 | 5058 | void |
864dbfa3 | 5059 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5060 | { |
dce16143 MB |
5061 | int refcount_is_zero; |
5062 | ||
79072805 LW |
5063 | if (!sv) |
5064 | return; | |
a0d0e21e LW |
5065 | if (SvREFCNT(sv) == 0) { |
5066 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5067 | /* this SV's refcnt has been artificially decremented to |
5068 | * trigger cleanup */ | |
a0d0e21e | 5069 | return; |
3280af22 | 5070 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5071 | return; |
d689ffdd JP |
5072 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5073 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5074 | SvREFCNT(sv) = (~(U32)0)/2; | |
5075 | return; | |
5076 | } | |
0453d815 PM |
5077 | if (ckWARN_d(WARN_INTERNAL)) |
5078 | Perl_warner(aTHX_ WARN_INTERNAL, "Attempt to free unreferenced scalar"); | |
79072805 LW |
5079 | return; |
5080 | } | |
dce16143 MB |
5081 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
5082 | if (!refcount_is_zero) | |
8990e307 | 5083 | return; |
463ee0b2 LW |
5084 | #ifdef DEBUGGING |
5085 | if (SvTEMP(sv)) { | |
0453d815 | 5086 | if (ckWARN_d(WARN_DEBUGGING)) |
f248d071 | 5087 | Perl_warner(aTHX_ WARN_DEBUGGING, |
1d7c1841 GS |
5088 | "Attempt to free temp prematurely: SV 0x%"UVxf, |
5089 | PTR2UV(sv)); | |
79072805 | 5090 | return; |
79072805 | 5091 | } |
463ee0b2 | 5092 | #endif |
d689ffdd JP |
5093 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5094 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5095 | SvREFCNT(sv) = (~(U32)0)/2; | |
5096 | return; | |
5097 | } | |
79072805 | 5098 | sv_clear(sv); |
477f5d66 CS |
5099 | if (! SvREFCNT(sv)) |
5100 | del_SV(sv); | |
79072805 LW |
5101 | } |
5102 | ||
954c1994 GS |
5103 | /* |
5104 | =for apidoc sv_len | |
5105 | ||
645c22ef DM |
5106 | Returns the length of the string in the SV. Handles magic and type |
5107 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5108 | |
5109 | =cut | |
5110 | */ | |
5111 | ||
79072805 | 5112 | STRLEN |
864dbfa3 | 5113 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5114 | { |
463ee0b2 | 5115 | STRLEN len; |
79072805 LW |
5116 | |
5117 | if (!sv) | |
5118 | return 0; | |
5119 | ||
8990e307 | 5120 | if (SvGMAGICAL(sv)) |
565764a8 | 5121 | len = mg_length(sv); |
8990e307 | 5122 | else |
497b47a8 | 5123 | (void)SvPV(sv, len); |
463ee0b2 | 5124 | return len; |
79072805 LW |
5125 | } |
5126 | ||
c461cf8f JH |
5127 | /* |
5128 | =for apidoc sv_len_utf8 | |
5129 | ||
5130 | Returns the number of characters in the string in an SV, counting wide | |
645c22ef | 5131 | UTF8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5132 | |
5133 | =cut | |
5134 | */ | |
5135 | ||
a0ed51b3 | 5136 | STRLEN |
864dbfa3 | 5137 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5138 | { |
a0ed51b3 LW |
5139 | if (!sv) |
5140 | return 0; | |
5141 | ||
a0ed51b3 | 5142 | if (SvGMAGICAL(sv)) |
b76347f2 | 5143 | return mg_length(sv); |
a0ed51b3 | 5144 | else |
b76347f2 JH |
5145 | { |
5146 | STRLEN len; | |
5147 | U8 *s = (U8*)SvPV(sv, len); | |
5148 | ||
d6efbbad | 5149 | return Perl_utf8_length(aTHX_ s, s + len); |
a0ed51b3 | 5150 | } |
a0ed51b3 LW |
5151 | } |
5152 | ||
645c22ef DM |
5153 | /* |
5154 | =for apidoc sv_pos_u2b | |
5155 | ||
5156 | Converts the value pointed to by offsetp from a count of UTF8 chars from | |
5157 | the start of the string, to a count of the equivalent number of bytes; if | |
5158 | lenp is non-zero, it does the same to lenp, but this time starting from | |
5159 | the offset, rather than from the start of the string. Handles magic and | |
5160 | type coercion. | |
5161 | ||
5162 | =cut | |
5163 | */ | |
5164 | ||
a0ed51b3 | 5165 | void |
864dbfa3 | 5166 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 5167 | { |
dfe13c55 GS |
5168 | U8 *start; |
5169 | U8 *s; | |
5170 | U8 *send; | |
a0ed51b3 LW |
5171 | I32 uoffset = *offsetp; |
5172 | STRLEN len; | |
5173 | ||
5174 | if (!sv) | |
5175 | return; | |
5176 | ||
dfe13c55 | 5177 | start = s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
5178 | send = s + len; |
5179 | while (s < send && uoffset--) | |
5180 | s += UTF8SKIP(s); | |
bb40f870 GA |
5181 | if (s >= send) |
5182 | s = send; | |
a0ed51b3 LW |
5183 | *offsetp = s - start; |
5184 | if (lenp) { | |
5185 | I32 ulen = *lenp; | |
5186 | start = s; | |
5187 | while (s < send && ulen--) | |
5188 | s += UTF8SKIP(s); | |
bb40f870 GA |
5189 | if (s >= send) |
5190 | s = send; | |
a0ed51b3 LW |
5191 | *lenp = s - start; |
5192 | } | |
5193 | return; | |
5194 | } | |
5195 | ||
645c22ef DM |
5196 | /* |
5197 | =for apidoc sv_pos_b2u | |
5198 | ||
5199 | Converts the value pointed to by offsetp from a count of bytes from the | |
5200 | start of the string, to a count of the equivalent number of UTF8 chars. | |
5201 | Handles magic and type coercion. | |
5202 | ||
5203 | =cut | |
5204 | */ | |
5205 | ||
a0ed51b3 | 5206 | void |
864dbfa3 | 5207 | Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp) |
a0ed51b3 | 5208 | { |
dfe13c55 GS |
5209 | U8 *s; |
5210 | U8 *send; | |
a0ed51b3 LW |
5211 | STRLEN len; |
5212 | ||
5213 | if (!sv) | |
5214 | return; | |
5215 | ||
dfe13c55 | 5216 | s = (U8*)SvPV(sv, len); |
a0ed51b3 | 5217 | if (len < *offsetp) |
a0dbb045 | 5218 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
a0ed51b3 LW |
5219 | send = s + *offsetp; |
5220 | len = 0; | |
5221 | while (s < send) { | |
a0dbb045 | 5222 | STRLEN n; |
2b9d42f0 NIS |
5223 | /* Call utf8n_to_uvchr() to validate the sequence */ |
5224 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
5225 | if (n > 0) { | |
a0dbb045 JH |
5226 | s += n; |
5227 | len++; | |
5228 | } | |
5229 | else | |
5230 | break; | |
a0ed51b3 LW |
5231 | } |
5232 | *offsetp = len; | |
5233 | return; | |
5234 | } | |
5235 | ||
954c1994 GS |
5236 | /* |
5237 | =for apidoc sv_eq | |
5238 | ||
5239 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
5240 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5241 | coerce its args to strings if necessary. | |
954c1994 GS |
5242 | |
5243 | =cut | |
5244 | */ | |
5245 | ||
79072805 | 5246 | I32 |
e01b9e88 | 5247 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 LW |
5248 | { |
5249 | char *pv1; | |
463ee0b2 | 5250 | STRLEN cur1; |
79072805 | 5251 | char *pv2; |
463ee0b2 | 5252 | STRLEN cur2; |
e01b9e88 | 5253 | I32 eq = 0; |
db42d148 | 5254 | char *tpv = Nullch; |
79072805 | 5255 | |
e01b9e88 | 5256 | if (!sv1) { |
79072805 LW |
5257 | pv1 = ""; |
5258 | cur1 = 0; | |
5259 | } | |
463ee0b2 | 5260 | else |
e01b9e88 | 5261 | pv1 = SvPV(sv1, cur1); |
79072805 | 5262 | |
e01b9e88 SC |
5263 | if (!sv2){ |
5264 | pv2 = ""; | |
5265 | cur2 = 0; | |
92d29cee | 5266 | } |
e01b9e88 SC |
5267 | else |
5268 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5269 | |
e01b9e88 | 5270 | /* do not utf8ize the comparands as a side-effect */ |
0064a8a9 | 5271 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
f9a63242 | 5272 | bool is_utf8 = TRUE; |
db42d148 | 5273 | /* UTF-8ness differs */ |
1aa99e6b | 5274 | |
e01b9e88 | 5275 | if (SvUTF8(sv1)) { |
db42d148 | 5276 | /* sv1 is the UTF-8 one , If is equal it must be downgrade-able */ |
f34ff0a8 | 5277 | char *pv = (char*)bytes_from_utf8((U8*)pv1, &cur1, &is_utf8); |
db42d148 NIS |
5278 | if (pv != pv1) |
5279 | pv1 = tpv = pv; | |
e01b9e88 SC |
5280 | } |
5281 | else { | |
db42d148 | 5282 | /* sv2 is the UTF-8 one , If is equal it must be downgrade-able */ |
f34ff0a8 | 5283 | char *pv = (char *)bytes_from_utf8((U8*)pv2, &cur2, &is_utf8); |
db42d148 NIS |
5284 | if (pv != pv2) |
5285 | pv2 = tpv = pv; | |
5286 | } | |
5287 | if (is_utf8) { | |
5288 | /* Downgrade not possible - cannot be eq */ | |
5289 | return FALSE; | |
e01b9e88 SC |
5290 | } |
5291 | } | |
79072805 | 5292 | |
e01b9e88 SC |
5293 | if (cur1 == cur2) |
5294 | eq = memEQ(pv1, pv2, cur1); | |
5295 | ||
db42d148 NIS |
5296 | if (tpv != Nullch) |
5297 | Safefree(tpv); | |
e01b9e88 SC |
5298 | |
5299 | return eq; | |
79072805 LW |
5300 | } |
5301 | ||
954c1994 GS |
5302 | /* |
5303 | =for apidoc sv_cmp | |
5304 | ||
5305 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
5306 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
5307 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5308 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
5309 | |
5310 | =cut | |
5311 | */ | |
5312 | ||
79072805 | 5313 | I32 |
e01b9e88 | 5314 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5315 | { |
560a288e GS |
5316 | STRLEN cur1, cur2; |
5317 | char *pv1, *pv2; | |
1c846c1f | 5318 | I32 cmp; |
e01b9e88 SC |
5319 | bool pv1tmp = FALSE; |
5320 | bool pv2tmp = FALSE; | |
560a288e | 5321 | |
e01b9e88 SC |
5322 | if (!sv1) { |
5323 | pv1 = ""; | |
560a288e GS |
5324 | cur1 = 0; |
5325 | } | |
e01b9e88 SC |
5326 | else |
5327 | pv1 = SvPV(sv1, cur1); | |
560a288e | 5328 | |
e01b9e88 SC |
5329 | if (!sv2){ |
5330 | pv2 = ""; | |
560a288e GS |
5331 | cur2 = 0; |
5332 | } | |
e01b9e88 SC |
5333 | else |
5334 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5335 | |
e01b9e88 | 5336 | /* do not utf8ize the comparands as a side-effect */ |
0064a8a9 | 5337 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
e01b9e88 SC |
5338 | if (SvUTF8(sv1)) { |
5339 | pv2 = (char*)bytes_to_utf8((U8*)pv2, &cur2); | |
5340 | pv2tmp = TRUE; | |
5341 | } | |
5342 | else { | |
5343 | pv1 = (char*)bytes_to_utf8((U8*)pv1, &cur1); | |
5344 | pv1tmp = TRUE; | |
5345 | } | |
5346 | } | |
79072805 | 5347 | |
e01b9e88 SC |
5348 | if (!cur1) { |
5349 | cmp = cur2 ? -1 : 0; | |
5350 | } else if (!cur2) { | |
5351 | cmp = 1; | |
5352 | } else { | |
5353 | I32 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); | |
5354 | ||
5355 | if (retval) { | |
5356 | cmp = retval < 0 ? -1 : 1; | |
5357 | } else if (cur1 == cur2) { | |
5358 | cmp = 0; | |
5359 | } else { | |
5360 | cmp = cur1 < cur2 ? -1 : 1; | |
5361 | } | |
5362 | } | |
16660edb | 5363 | |
e01b9e88 SC |
5364 | if (pv1tmp) |
5365 | Safefree(pv1); | |
5366 | if (pv2tmp) | |
5367 | Safefree(pv2); | |
16660edb | 5368 | |
e01b9e88 | 5369 | return cmp; |
bbce6d69 | 5370 | } |
16660edb | 5371 | |
c461cf8f JH |
5372 | /* |
5373 | =for apidoc sv_cmp_locale | |
5374 | ||
645c22ef DM |
5375 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
5376 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
5377 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
5378 | |
5379 | =cut | |
5380 | */ | |
5381 | ||
bbce6d69 | 5382 | I32 |
864dbfa3 | 5383 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 5384 | { |
36477c24 | 5385 | #ifdef USE_LOCALE_COLLATE |
16660edb | 5386 | |
bbce6d69 | 5387 | char *pv1, *pv2; |
5388 | STRLEN len1, len2; | |
5389 | I32 retval; | |
16660edb | 5390 | |
3280af22 | 5391 | if (PL_collation_standard) |
bbce6d69 | 5392 | goto raw_compare; |
16660edb | 5393 | |
bbce6d69 | 5394 | len1 = 0; |
8ac85365 | 5395 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 5396 | len2 = 0; |
8ac85365 | 5397 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 5398 | |
bbce6d69 | 5399 | if (!pv1 || !len1) { |
5400 | if (pv2 && len2) | |
5401 | return -1; | |
5402 | else | |
5403 | goto raw_compare; | |
5404 | } | |
5405 | else { | |
5406 | if (!pv2 || !len2) | |
5407 | return 1; | |
5408 | } | |
16660edb | 5409 | |
bbce6d69 | 5410 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 5411 | |
bbce6d69 | 5412 | if (retval) |
16660edb | 5413 | return retval < 0 ? -1 : 1; |
5414 | ||
bbce6d69 | 5415 | /* |
5416 | * When the result of collation is equality, that doesn't mean | |
5417 | * that there are no differences -- some locales exclude some | |
5418 | * characters from consideration. So to avoid false equalities, | |
5419 | * we use the raw string as a tiebreaker. | |
5420 | */ | |
16660edb | 5421 | |
bbce6d69 | 5422 | raw_compare: |
5423 | /* FALL THROUGH */ | |
16660edb | 5424 | |
36477c24 | 5425 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 5426 | |
bbce6d69 | 5427 | return sv_cmp(sv1, sv2); |
5428 | } | |
79072805 | 5429 | |
645c22ef | 5430 | |
36477c24 | 5431 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 5432 | |
7a4c00b4 | 5433 | /* |
645c22ef DM |
5434 | =for apidoc sv_collxfrm |
5435 | ||
5436 | Add Collate Transform magic to an SV if it doesn't already have it. | |
5437 | ||
5438 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
5439 | scalar data of the variable, but transformed to such a format that a normal | |
5440 | memory comparison can be used to compare the data according to the locale | |
5441 | settings. | |
5442 | ||
5443 | =cut | |
5444 | */ | |
5445 | ||
bbce6d69 | 5446 | char * |
864dbfa3 | 5447 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 5448 | { |
7a4c00b4 | 5449 | MAGIC *mg; |
16660edb | 5450 | |
14befaf4 | 5451 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 5452 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 5453 | char *s, *xf; |
5454 | STRLEN len, xlen; | |
5455 | ||
7a4c00b4 | 5456 | if (mg) |
5457 | Safefree(mg->mg_ptr); | |
bbce6d69 | 5458 | s = SvPV(sv, len); |
5459 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 5460 | if (SvREADONLY(sv)) { |
5461 | SAVEFREEPV(xf); | |
5462 | *nxp = xlen; | |
3280af22 | 5463 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 5464 | } |
7a4c00b4 | 5465 | if (! mg) { |
14befaf4 DM |
5466 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
5467 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 5468 | assert(mg); |
bbce6d69 | 5469 | } |
7a4c00b4 | 5470 | mg->mg_ptr = xf; |
565764a8 | 5471 | mg->mg_len = xlen; |
7a4c00b4 | 5472 | } |
5473 | else { | |
ff0cee69 | 5474 | if (mg) { |
5475 | mg->mg_ptr = NULL; | |
565764a8 | 5476 | mg->mg_len = -1; |
ff0cee69 | 5477 | } |
bbce6d69 | 5478 | } |
5479 | } | |
7a4c00b4 | 5480 | if (mg && mg->mg_ptr) { |
565764a8 | 5481 | *nxp = mg->mg_len; |
3280af22 | 5482 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 5483 | } |
5484 | else { | |
5485 | *nxp = 0; | |
5486 | return NULL; | |
16660edb | 5487 | } |
79072805 LW |
5488 | } |
5489 | ||
36477c24 | 5490 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 5491 | |
c461cf8f JH |
5492 | /* |
5493 | =for apidoc sv_gets | |
5494 | ||
5495 | Get a line from the filehandle and store it into the SV, optionally | |
5496 | appending to the currently-stored string. | |
5497 | ||
5498 | =cut | |
5499 | */ | |
5500 | ||
79072805 | 5501 | char * |
864dbfa3 | 5502 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 5503 | { |
c07a80fd | 5504 | char *rsptr; |
5505 | STRLEN rslen; | |
5506 | register STDCHAR rslast; | |
5507 | register STDCHAR *bp; | |
5508 | register I32 cnt; | |
9c5ffd7c | 5509 | I32 i = 0; |
c07a80fd | 5510 | |
2213622d | 5511 | SV_CHECK_THINKFIRST(sv); |
6fc92669 | 5512 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 5513 | |
ff68c719 | 5514 | SvSCREAM_off(sv); |
c07a80fd | 5515 | |
3280af22 | 5516 | if (RsSNARF(PL_rs)) { |
c07a80fd | 5517 | rsptr = NULL; |
5518 | rslen = 0; | |
5519 | } | |
3280af22 | 5520 | else if (RsRECORD(PL_rs)) { |
5b2b9c68 HM |
5521 | I32 recsize, bytesread; |
5522 | char *buffer; | |
5523 | ||
5524 | /* Grab the size of the record we're getting */ | |
3280af22 | 5525 | recsize = SvIV(SvRV(PL_rs)); |
5b2b9c68 | 5526 | (void)SvPOK_only(sv); /* Validate pointer */ |
e670df4e | 5527 | buffer = SvGROW(sv, recsize + 1); |
5b2b9c68 HM |
5528 | /* Go yank in */ |
5529 | #ifdef VMS | |
5530 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
5531 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
5532 | /* doing, but we've got no other real choice */ | |
5533 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); | |
5534 | #else | |
5535 | bytesread = PerlIO_read(fp, buffer, recsize); | |
5536 | #endif | |
5537 | SvCUR_set(sv, bytesread); | |
e670df4e | 5538 | buffer[bytesread] = '\0'; |
7d59b7e4 NIS |
5539 | if (PerlIO_isutf8(fp)) |
5540 | SvUTF8_on(sv); | |
5541 | else | |
5542 | SvUTF8_off(sv); | |
5b2b9c68 HM |
5543 | return(SvCUR(sv) ? SvPVX(sv) : Nullch); |
5544 | } | |
3280af22 | 5545 | else if (RsPARA(PL_rs)) { |
c07a80fd | 5546 | rsptr = "\n\n"; |
5547 | rslen = 2; | |
5548 | } | |
7d59b7e4 NIS |
5549 | else { |
5550 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
5551 | if (PerlIO_isutf8(fp)) { | |
5552 | rsptr = SvPVutf8(PL_rs, rslen); | |
5553 | } | |
5554 | else { | |
5555 | if (SvUTF8(PL_rs)) { | |
5556 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
5557 | Perl_croak(aTHX_ "Wide character in $/"); | |
5558 | } | |
5559 | } | |
5560 | rsptr = SvPV(PL_rs, rslen); | |
5561 | } | |
5562 | } | |
5563 | ||
c07a80fd | 5564 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
5565 | ||
3280af22 | 5566 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
79072805 | 5567 | do { /* to make sure file boundaries work right */ |
760ac839 | 5568 | if (PerlIO_eof(fp)) |
a0d0e21e | 5569 | return 0; |
760ac839 | 5570 | i = PerlIO_getc(fp); |
79072805 | 5571 | if (i != '\n') { |
a0d0e21e LW |
5572 | if (i == -1) |
5573 | return 0; | |
760ac839 | 5574 | PerlIO_ungetc(fp,i); |
79072805 LW |
5575 | break; |
5576 | } | |
5577 | } while (i != EOF); | |
5578 | } | |
c07a80fd | 5579 | |
760ac839 LW |
5580 | /* See if we know enough about I/O mechanism to cheat it ! */ |
5581 | ||
5582 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 5583 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
5584 | enough here - and may even be a macro allowing compile |
5585 | time optimization. | |
5586 | */ | |
5587 | ||
5588 | if (PerlIO_fast_gets(fp)) { | |
5589 | ||
5590 | /* | |
5591 | * We're going to steal some values from the stdio struct | |
5592 | * and put EVERYTHING in the innermost loop into registers. | |
5593 | */ | |
5594 | register STDCHAR *ptr; | |
5595 | STRLEN bpx; | |
5596 | I32 shortbuffered; | |
5597 | ||
16660edb | 5598 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
5599 | /* An ungetc()d char is handled separately from the regular | |
5600 | * buffer, so we getc() it back out and stuff it in the buffer. | |
5601 | */ | |
5602 | i = PerlIO_getc(fp); | |
5603 | if (i == EOF) return 0; | |
5604 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
5605 | (*fp)->_cnt++; | |
5606 | #endif | |
c07a80fd | 5607 | |
c2960299 | 5608 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 5609 | |
a20bf0c3 | 5610 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
a0d0e21e | 5611 | (void)SvPOK_only(sv); /* validate pointer */ |
79072805 LW |
5612 | if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ |
5613 | if (cnt > 80 && SvLEN(sv) > append) { | |
5614 | shortbuffered = cnt - SvLEN(sv) + append + 1; | |
5615 | cnt -= shortbuffered; | |
5616 | } | |
5617 | else { | |
5618 | shortbuffered = 0; | |
bbce6d69 | 5619 | /* remember that cnt can be negative */ |
5620 | SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1))); | |
79072805 LW |
5621 | } |
5622 | } | |
5623 | else | |
5624 | shortbuffered = 0; | |
c07a80fd | 5625 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 5626 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 5627 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5628 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 5629 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5630 | "Screamer: entering: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5631 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5632 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
5633 | for (;;) { |
5634 | screamer: | |
93a17b20 | 5635 | if (cnt > 0) { |
c07a80fd | 5636 | if (rslen) { |
760ac839 LW |
5637 | while (cnt > 0) { /* this | eat */ |
5638 | cnt--; | |
c07a80fd | 5639 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
5640 | goto thats_all_folks; /* screams | sed :-) */ | |
5641 | } | |
5642 | } | |
5643 | else { | |
1c846c1f NIS |
5644 | Copy(ptr, bp, cnt, char); /* this | eat */ |
5645 | bp += cnt; /* screams | dust */ | |
c07a80fd | 5646 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 5647 | cnt = 0; |
93a17b20 | 5648 | } |
79072805 LW |
5649 | } |
5650 | ||
748a9306 | 5651 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
5652 | cnt = shortbuffered; |
5653 | shortbuffered = 0; | |
c07a80fd | 5654 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5655 | SvCUR_set(sv, bpx); |
5656 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 5657 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
5658 | continue; |
5659 | } | |
5660 | ||
16660edb | 5661 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
5662 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
5663 | PTR2UV(ptr),(long)cnt)); | |
a20bf0c3 | 5664 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */ |
16660edb | 5665 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5666 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5667 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5668 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
1c846c1f | 5669 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 5670 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
5671 | another abstraction. */ | |
760ac839 | 5672 | i = PerlIO_getc(fp); /* get more characters */ |
16660edb | 5673 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5674 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5675 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5676 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
a20bf0c3 JH |
5677 | cnt = PerlIO_get_cnt(fp); |
5678 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 5679 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5680 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 5681 | |
748a9306 LW |
5682 | if (i == EOF) /* all done for ever? */ |
5683 | goto thats_really_all_folks; | |
5684 | ||
c07a80fd | 5685 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5686 | SvCUR_set(sv, bpx); |
5687 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 5688 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
5689 | ||
760ac839 | 5690 | *bp++ = i; /* store character from PerlIO_getc */ |
79072805 | 5691 | |
c07a80fd | 5692 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 5693 | goto thats_all_folks; |
79072805 LW |
5694 | } |
5695 | ||
5696 | thats_all_folks: | |
c07a80fd | 5697 | if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || |
36477c24 | 5698 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 5699 | goto screamer; /* go back to the fray */ |
79072805 LW |
5700 | thats_really_all_folks: |
5701 | if (shortbuffered) | |
5702 | cnt += shortbuffered; | |
16660edb | 5703 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5704 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
a20bf0c3 | 5705 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 5706 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5707 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5708 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5709 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 5710 | *bp = '\0'; |
760ac839 | 5711 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 5712 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 5713 | "Screamer: done, len=%ld, string=|%.*s|\n", |
5714 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
5715 | } |
5716 | else | |
79072805 | 5717 | { |
4d2c4e07 | 5718 | #ifndef EPOC |
760ac839 | 5719 | /*The big, slow, and stupid way */ |
c07a80fd | 5720 | STDCHAR buf[8192]; |
4d2c4e07 OF |
5721 | #else |
5722 | /* Need to work around EPOC SDK features */ | |
5723 | /* On WINS: MS VC5 generates calls to _chkstk, */ | |
5724 | /* if a `large' stack frame is allocated */ | |
5725 | /* gcc on MARM does not generate calls like these */ | |
5726 | STDCHAR buf[1024]; | |
5727 | #endif | |
79072805 | 5728 | |
760ac839 | 5729 | screamer2: |
c07a80fd | 5730 | if (rslen) { |
760ac839 LW |
5731 | register STDCHAR *bpe = buf + sizeof(buf); |
5732 | bp = buf; | |
5733 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe) | |
5734 | ; /* keep reading */ | |
5735 | cnt = bp - buf; | |
c07a80fd | 5736 | } |
5737 | else { | |
760ac839 | 5738 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 5739 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
5740 | * both args of ?: operator, causing EOF to change into 255 | |
5741 | */ | |
5742 | if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; } | |
c07a80fd | 5743 | } |
79072805 LW |
5744 | |
5745 | if (append) | |
760ac839 | 5746 | sv_catpvn(sv, (char *) buf, cnt); |
79072805 | 5747 | else |
760ac839 | 5748 | sv_setpvn(sv, (char *) buf, cnt); |
c07a80fd | 5749 | |
5750 | if (i != EOF && /* joy */ | |
5751 | (!rslen || | |
5752 | SvCUR(sv) < rslen || | |
36477c24 | 5753 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
5754 | { |
5755 | append = -1; | |
63e4d877 CS |
5756 | /* |
5757 | * If we're reading from a TTY and we get a short read, | |
5758 | * indicating that the user hit his EOF character, we need | |
5759 | * to notice it now, because if we try to read from the TTY | |
5760 | * again, the EOF condition will disappear. | |
5761 | * | |
5762 | * The comparison of cnt to sizeof(buf) is an optimization | |
5763 | * that prevents unnecessary calls to feof(). | |
5764 | * | |
5765 | * - jik 9/25/96 | |
5766 | */ | |
5767 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
5768 | goto screamer2; | |
79072805 LW |
5769 | } |
5770 | } | |
5771 | ||
1c846c1f | 5772 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
c07a80fd | 5773 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 5774 | i = PerlIO_getc(fp); |
79072805 | 5775 | if (i != '\n') { |
760ac839 | 5776 | PerlIO_ungetc(fp,i); |
79072805 LW |
5777 | break; |
5778 | } | |
5779 | } | |
5780 | } | |
c07a80fd | 5781 | |
7d59b7e4 NIS |
5782 | if (PerlIO_isutf8(fp)) |
5783 | SvUTF8_on(sv); | |
5784 | else | |
5785 | SvUTF8_off(sv); | |
5786 | ||
c07a80fd | 5787 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
5788 | } |
5789 | ||
954c1994 GS |
5790 | /* |
5791 | =for apidoc sv_inc | |
5792 | ||
645c22ef DM |
5793 | Auto-increment of the value in the SV, doing string to numeric conversion |
5794 | if necessary. Handles 'get' magic. | |
954c1994 GS |
5795 | |
5796 | =cut | |
5797 | */ | |
5798 | ||
79072805 | 5799 | void |
864dbfa3 | 5800 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
5801 | { |
5802 | register char *d; | |
463ee0b2 | 5803 | int flags; |
79072805 LW |
5804 | |
5805 | if (!sv) | |
5806 | return; | |
b23a5f78 GB |
5807 | if (SvGMAGICAL(sv)) |
5808 | mg_get(sv); | |
ed6116ce | 5809 | if (SvTHINKFIRST(sv)) { |
0f15f207 | 5810 | if (SvREADONLY(sv)) { |
3280af22 | 5811 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 5812 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 5813 | } |
a0d0e21e | 5814 | if (SvROK(sv)) { |
b5be31e9 | 5815 | IV i; |
9e7bc3e8 JD |
5816 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
5817 | return; | |
56431972 | 5818 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
5819 | sv_unref(sv); |
5820 | sv_setiv(sv, i); | |
a0d0e21e | 5821 | } |
ed6116ce | 5822 | } |
8990e307 | 5823 | flags = SvFLAGS(sv); |
28e5dec8 JH |
5824 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
5825 | /* It's (privately or publicly) a float, but not tested as an | |
5826 | integer, so test it to see. */ | |
d460ef45 | 5827 | (void) SvIV(sv); |
28e5dec8 JH |
5828 | flags = SvFLAGS(sv); |
5829 | } | |
5830 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
5831 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 5832 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 5833 | oops_its_int: |
59d8ce62 | 5834 | #endif |
25da4f38 IZ |
5835 | if (SvIsUV(sv)) { |
5836 | if (SvUVX(sv) == UV_MAX) | |
65202027 | 5837 | sv_setnv(sv, (NV)UV_MAX + 1.0); |
25da4f38 IZ |
5838 | else |
5839 | (void)SvIOK_only_UV(sv); | |
5840 | ++SvUVX(sv); | |
5841 | } else { | |
5842 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 5843 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
5844 | else { |
5845 | (void)SvIOK_only(sv); | |
5846 | ++SvIVX(sv); | |
1c846c1f | 5847 | } |
55497cff | 5848 | } |
79072805 LW |
5849 | return; |
5850 | } | |
28e5dec8 JH |
5851 | if (flags & SVp_NOK) { |
5852 | (void)SvNOK_only(sv); | |
5853 | SvNVX(sv) += 1.0; | |
5854 | return; | |
5855 | } | |
5856 | ||
8990e307 | 5857 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
28e5dec8 JH |
5858 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
5859 | sv_upgrade(sv, SVt_IV); | |
5860 | (void)SvIOK_only(sv); | |
5861 | SvIVX(sv) = 1; | |
79072805 LW |
5862 | return; |
5863 | } | |
463ee0b2 | 5864 | d = SvPVX(sv); |
79072805 LW |
5865 | while (isALPHA(*d)) d++; |
5866 | while (isDIGIT(*d)) d++; | |
5867 | if (*d) { | |
28e5dec8 JH |
5868 | #ifdef PERL_PRESERVE_IVUV |
5869 | /* Got to punt this an an integer if needs be, but we don't issue | |
5870 | warnings. Probably ought to make the sv_iv_please() that does | |
5871 | the conversion if possible, and silently. */ | |
c2988b20 | 5872 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
5873 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
5874 | /* Need to try really hard to see if it's an integer. | |
5875 | 9.22337203685478e+18 is an integer. | |
5876 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
5877 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
5878 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
5879 | or we go insane. */ | |
d460ef45 | 5880 | |
28e5dec8 JH |
5881 | (void) sv_2iv(sv); |
5882 | if (SvIOK(sv)) | |
5883 | goto oops_its_int; | |
5884 | ||
5885 | /* sv_2iv *should* have made this an NV */ | |
5886 | if (flags & SVp_NOK) { | |
5887 | (void)SvNOK_only(sv); | |
5888 | SvNVX(sv) += 1.0; | |
5889 | return; | |
5890 | } | |
5891 | /* I don't think we can get here. Maybe I should assert this | |
5892 | And if we do get here I suspect that sv_setnv will croak. NWC | |
5893 | Fall through. */ | |
5894 | #if defined(USE_LONG_DOUBLE) | |
5895 | 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", | |
5896 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
5897 | #else | |
5898 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_inc punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%g\n", | |
5899 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
5900 | #endif | |
5901 | } | |
5902 | #endif /* PERL_PRESERVE_IVUV */ | |
5903 | sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); | |
79072805 LW |
5904 | return; |
5905 | } | |
5906 | d--; | |
463ee0b2 | 5907 | while (d >= SvPVX(sv)) { |
79072805 LW |
5908 | if (isDIGIT(*d)) { |
5909 | if (++*d <= '9') | |
5910 | return; | |
5911 | *(d--) = '0'; | |
5912 | } | |
5913 | else { | |
9d116dd7 JH |
5914 | #ifdef EBCDIC |
5915 | /* MKS: The original code here died if letters weren't consecutive. | |
5916 | * at least it didn't have to worry about non-C locales. The | |
5917 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 5918 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
5919 | * [A-Za-z] are accepted by isALPHA in the C locale. |
5920 | */ | |
5921 | if (*d != 'z' && *d != 'Z') { | |
5922 | do { ++*d; } while (!isALPHA(*d)); | |
5923 | return; | |
5924 | } | |
5925 | *(d--) -= 'z' - 'a'; | |
5926 | #else | |
79072805 LW |
5927 | ++*d; |
5928 | if (isALPHA(*d)) | |
5929 | return; | |
5930 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 5931 | #endif |
79072805 LW |
5932 | } |
5933 | } | |
5934 | /* oh,oh, the number grew */ | |
5935 | SvGROW(sv, SvCUR(sv) + 2); | |
5936 | SvCUR(sv)++; | |
463ee0b2 | 5937 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
5938 | *d = d[-1]; |
5939 | if (isDIGIT(d[1])) | |
5940 | *d = '1'; | |
5941 | else | |
5942 | *d = d[1]; | |
5943 | } | |
5944 | ||
954c1994 GS |
5945 | /* |
5946 | =for apidoc sv_dec | |
5947 | ||
645c22ef DM |
5948 | Auto-decrement of the value in the SV, doing string to numeric conversion |
5949 | if necessary. Handles 'get' magic. | |
954c1994 GS |
5950 | |
5951 | =cut | |
5952 | */ | |
5953 | ||
79072805 | 5954 | void |
864dbfa3 | 5955 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 5956 | { |
463ee0b2 LW |
5957 | int flags; |
5958 | ||
79072805 LW |
5959 | if (!sv) |
5960 | return; | |
b23a5f78 GB |
5961 | if (SvGMAGICAL(sv)) |
5962 | mg_get(sv); | |
ed6116ce | 5963 | if (SvTHINKFIRST(sv)) { |
0f15f207 | 5964 | if (SvREADONLY(sv)) { |
3280af22 | 5965 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 5966 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 5967 | } |
a0d0e21e | 5968 | if (SvROK(sv)) { |
b5be31e9 | 5969 | IV i; |
9e7bc3e8 JD |
5970 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
5971 | return; | |
56431972 | 5972 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
5973 | sv_unref(sv); |
5974 | sv_setiv(sv, i); | |
a0d0e21e | 5975 | } |
ed6116ce | 5976 | } |
28e5dec8 JH |
5977 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
5978 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 5979 | flags = SvFLAGS(sv); |
28e5dec8 JH |
5980 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
5981 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 5982 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 5983 | oops_its_int: |
59d8ce62 | 5984 | #endif |
25da4f38 IZ |
5985 | if (SvIsUV(sv)) { |
5986 | if (SvUVX(sv) == 0) { | |
5987 | (void)SvIOK_only(sv); | |
5988 | SvIVX(sv) = -1; | |
5989 | } | |
5990 | else { | |
5991 | (void)SvIOK_only_UV(sv); | |
5992 | --SvUVX(sv); | |
1c846c1f | 5993 | } |
25da4f38 IZ |
5994 | } else { |
5995 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 5996 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
5997 | else { |
5998 | (void)SvIOK_only(sv); | |
5999 | --SvIVX(sv); | |
1c846c1f | 6000 | } |
55497cff | 6001 | } |
6002 | return; | |
6003 | } | |
28e5dec8 JH |
6004 | if (flags & SVp_NOK) { |
6005 | SvNVX(sv) -= 1.0; | |
6006 | (void)SvNOK_only(sv); | |
6007 | return; | |
6008 | } | |
8990e307 | 6009 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
6010 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
6011 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 6012 | SvNVX(sv) = -1.0; |
a0d0e21e | 6013 | (void)SvNOK_only(sv); |
79072805 LW |
6014 | return; |
6015 | } | |
28e5dec8 JH |
6016 | #ifdef PERL_PRESERVE_IVUV |
6017 | { | |
c2988b20 | 6018 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6019 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6020 | /* Need to try really hard to see if it's an integer. | |
6021 | 9.22337203685478e+18 is an integer. | |
6022 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6023 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
6024 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
6025 | or we go insane. */ | |
d460ef45 | 6026 | |
28e5dec8 JH |
6027 | (void) sv_2iv(sv); |
6028 | if (SvIOK(sv)) | |
6029 | goto oops_its_int; | |
6030 | ||
6031 | /* sv_2iv *should* have made this an NV */ | |
6032 | if (flags & SVp_NOK) { | |
6033 | (void)SvNOK_only(sv); | |
6034 | SvNVX(sv) -= 1.0; | |
6035 | return; | |
6036 | } | |
6037 | /* I don't think we can get here. Maybe I should assert this | |
6038 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6039 | Fall through. */ | |
6040 | #if defined(USE_LONG_DOUBLE) | |
6041 | 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", | |
6042 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6043 | #else | |
6044 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_dec punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%g\n", | |
6045 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6046 | #endif | |
6047 | } | |
6048 | } | |
6049 | #endif /* PERL_PRESERVE_IVUV */ | |
097ee67d | 6050 | sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
6051 | } |
6052 | ||
954c1994 GS |
6053 | /* |
6054 | =for apidoc sv_mortalcopy | |
6055 | ||
645c22ef | 6056 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
d4236ebc DM |
6057 | The new SV is marked as mortal. It will be destroyed "soon", either by an |
6058 | explicit call to FREETMPS, or by an implicit call at places such as | |
6059 | statement boundaries. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
6060 | |
6061 | =cut | |
6062 | */ | |
6063 | ||
79072805 LW |
6064 | /* Make a string that will exist for the duration of the expression |
6065 | * evaluation. Actually, it may have to last longer than that, but | |
6066 | * hopefully we won't free it until it has been assigned to a | |
6067 | * permanent location. */ | |
6068 | ||
6069 | SV * | |
864dbfa3 | 6070 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 6071 | { |
463ee0b2 | 6072 | register SV *sv; |
79072805 | 6073 | |
4561caa4 | 6074 | new_SV(sv); |
79072805 | 6075 | sv_setsv(sv,oldstr); |
677b06e3 GS |
6076 | EXTEND_MORTAL(1); |
6077 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
6078 | SvTEMP_on(sv); |
6079 | return sv; | |
6080 | } | |
6081 | ||
954c1994 GS |
6082 | /* |
6083 | =for apidoc sv_newmortal | |
6084 | ||
645c22ef | 6085 | Creates a new null SV which is mortal. The reference count of the SV is |
d4236ebc DM |
6086 | set to 1. It will be destroyed "soon", either by an explicit call to |
6087 | FREETMPS, or by an implicit call at places such as statement boundaries. | |
6088 | See also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
6089 | |
6090 | =cut | |
6091 | */ | |
6092 | ||
8990e307 | 6093 | SV * |
864dbfa3 | 6094 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
6095 | { |
6096 | register SV *sv; | |
6097 | ||
4561caa4 | 6098 | new_SV(sv); |
8990e307 | 6099 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
6100 | EXTEND_MORTAL(1); |
6101 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
6102 | return sv; |
6103 | } | |
6104 | ||
954c1994 GS |
6105 | /* |
6106 | =for apidoc sv_2mortal | |
6107 | ||
d4236ebc DM |
6108 | Marks an existing SV as mortal. The SV will be destroyed "soon", either |
6109 | by an explicit call to FREETMPS, or by an implicit call at places such as | |
6110 | statement boundaries. See also C<sv_newmortal> and C<sv_mortalcopy>. | |
954c1994 GS |
6111 | |
6112 | =cut | |
6113 | */ | |
6114 | ||
79072805 | 6115 | SV * |
864dbfa3 | 6116 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 LW |
6117 | { |
6118 | if (!sv) | |
6119 | return sv; | |
d689ffdd | 6120 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 6121 | return sv; |
677b06e3 GS |
6122 | EXTEND_MORTAL(1); |
6123 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 6124 | SvTEMP_on(sv); |
79072805 LW |
6125 | return sv; |
6126 | } | |
6127 | ||
954c1994 GS |
6128 | /* |
6129 | =for apidoc newSVpv | |
6130 | ||
6131 | Creates a new SV and copies a string into it. The reference count for the | |
6132 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
6133 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
6134 | ||
6135 | =cut | |
6136 | */ | |
6137 | ||
79072805 | 6138 | SV * |
864dbfa3 | 6139 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 6140 | { |
463ee0b2 | 6141 | register SV *sv; |
79072805 | 6142 | |
4561caa4 | 6143 | new_SV(sv); |
79072805 LW |
6144 | if (!len) |
6145 | len = strlen(s); | |
6146 | sv_setpvn(sv,s,len); | |
6147 | return sv; | |
6148 | } | |
6149 | ||
954c1994 GS |
6150 | /* |
6151 | =for apidoc newSVpvn | |
6152 | ||
6153 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 6154 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 GS |
6155 | string. You are responsible for ensuring that the source string is at least |
6156 | C<len> bytes long. | |
6157 | ||
6158 | =cut | |
6159 | */ | |
6160 | ||
9da1e3b5 | 6161 | SV * |
864dbfa3 | 6162 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
6163 | { |
6164 | register SV *sv; | |
6165 | ||
6166 | new_SV(sv); | |
9da1e3b5 MUN |
6167 | sv_setpvn(sv,s,len); |
6168 | return sv; | |
6169 | } | |
6170 | ||
1c846c1f NIS |
6171 | /* |
6172 | =for apidoc newSVpvn_share | |
6173 | ||
645c22ef DM |
6174 | Creates a new SV with its SvPVX pointing to a shared string in the string |
6175 | table. If the string does not already exist in the table, it is created | |
6176 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
6177 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
6178 | otherwise the hash is computed. The idea here is that as the string table | |
6179 | is used for shared hash keys these strings will have SvPVX == HeKEY and | |
6180 | hash lookup will avoid string compare. | |
1c846c1f NIS |
6181 | |
6182 | =cut | |
6183 | */ | |
6184 | ||
6185 | SV * | |
c3654f1a | 6186 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
6187 | { |
6188 | register SV *sv; | |
c3654f1a IH |
6189 | bool is_utf8 = FALSE; |
6190 | if (len < 0) { | |
77caf834 | 6191 | STRLEN tmplen = -len; |
c3654f1a | 6192 | is_utf8 = TRUE; |
75a54232 JH |
6193 | /* See the note in hv.c:hv_fetch() --jhi */ |
6194 | src = (char*)bytes_from_utf8((U8*)src, &tmplen, &is_utf8); | |
6195 | len = tmplen; | |
6196 | } | |
1c846c1f NIS |
6197 | if (!hash) |
6198 | PERL_HASH(hash, src, len); | |
6199 | new_SV(sv); | |
6200 | sv_upgrade(sv, SVt_PVIV); | |
c3654f1a | 6201 | SvPVX(sv) = sharepvn(src, is_utf8?-len:len, hash); |
1c846c1f NIS |
6202 | SvCUR(sv) = len; |
6203 | SvUVX(sv) = hash; | |
6204 | SvLEN(sv) = 0; | |
6205 | SvREADONLY_on(sv); | |
6206 | SvFAKE_on(sv); | |
6207 | SvPOK_on(sv); | |
c3654f1a IH |
6208 | if (is_utf8) |
6209 | SvUTF8_on(sv); | |
1c846c1f NIS |
6210 | return sv; |
6211 | } | |
6212 | ||
645c22ef | 6213 | |
cea2e8a9 | 6214 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
6215 | |
6216 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
6217 | * version of the main function, (which may itself be aliased to us). | |
6218 | * Don't access this version directly. | |
6219 | */ | |
6220 | ||
46fc3d4c | 6221 | SV * |
cea2e8a9 | 6222 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 6223 | { |
cea2e8a9 | 6224 | dTHX; |
46fc3d4c | 6225 | register SV *sv; |
6226 | va_list args; | |
46fc3d4c | 6227 | va_start(args, pat); |
c5be433b | 6228 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 6229 | va_end(args); |
6230 | return sv; | |
6231 | } | |
cea2e8a9 | 6232 | #endif |
46fc3d4c | 6233 | |
954c1994 GS |
6234 | /* |
6235 | =for apidoc newSVpvf | |
6236 | ||
645c22ef | 6237 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
6238 | C<sprintf>. |
6239 | ||
6240 | =cut | |
6241 | */ | |
6242 | ||
cea2e8a9 GS |
6243 | SV * |
6244 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
6245 | { | |
6246 | register SV *sv; | |
6247 | va_list args; | |
cea2e8a9 | 6248 | va_start(args, pat); |
c5be433b | 6249 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
6250 | va_end(args); |
6251 | return sv; | |
6252 | } | |
46fc3d4c | 6253 | |
645c22ef DM |
6254 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
6255 | ||
79072805 | 6256 | SV * |
c5be433b GS |
6257 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
6258 | { | |
6259 | register SV *sv; | |
6260 | new_SV(sv); | |
6261 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
6262 | return sv; | |
6263 | } | |
6264 | ||
954c1994 GS |
6265 | /* |
6266 | =for apidoc newSVnv | |
6267 | ||
6268 | Creates a new SV and copies a floating point value into it. | |
6269 | The reference count for the SV is set to 1. | |
6270 | ||
6271 | =cut | |
6272 | */ | |
6273 | ||
c5be433b | 6274 | SV * |
65202027 | 6275 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 6276 | { |
463ee0b2 | 6277 | register SV *sv; |
79072805 | 6278 | |
4561caa4 | 6279 | new_SV(sv); |
79072805 LW |
6280 | sv_setnv(sv,n); |
6281 | return sv; | |
6282 | } | |
6283 | ||
954c1994 GS |
6284 | /* |
6285 | =for apidoc newSViv | |
6286 | ||
6287 | Creates a new SV and copies an integer into it. The reference count for the | |
6288 | SV is set to 1. | |
6289 | ||
6290 | =cut | |
6291 | */ | |
6292 | ||
79072805 | 6293 | SV * |
864dbfa3 | 6294 | Perl_newSViv(pTHX_ IV i) |
79072805 | 6295 | { |
463ee0b2 | 6296 | register SV *sv; |
79072805 | 6297 | |
4561caa4 | 6298 | new_SV(sv); |
79072805 LW |
6299 | sv_setiv(sv,i); |
6300 | return sv; | |
6301 | } | |
6302 | ||
954c1994 | 6303 | /* |
1a3327fb JH |
6304 | =for apidoc newSVuv |
6305 | ||
6306 | Creates a new SV and copies an unsigned integer into it. | |
6307 | The reference count for the SV is set to 1. | |
6308 | ||
6309 | =cut | |
6310 | */ | |
6311 | ||
6312 | SV * | |
6313 | Perl_newSVuv(pTHX_ UV u) | |
6314 | { | |
6315 | register SV *sv; | |
6316 | ||
6317 | new_SV(sv); | |
6318 | sv_setuv(sv,u); | |
6319 | return sv; | |
6320 | } | |
6321 | ||
6322 | /* | |
954c1994 GS |
6323 | =for apidoc newRV_noinc |
6324 | ||
6325 | Creates an RV wrapper for an SV. The reference count for the original | |
6326 | SV is B<not> incremented. | |
6327 | ||
6328 | =cut | |
6329 | */ | |
6330 | ||
2304df62 | 6331 | SV * |
864dbfa3 | 6332 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
6333 | { |
6334 | register SV *sv; | |
6335 | ||
4561caa4 | 6336 | new_SV(sv); |
2304df62 | 6337 | sv_upgrade(sv, SVt_RV); |
76e3520e | 6338 | SvTEMP_off(tmpRef); |
d689ffdd | 6339 | SvRV(sv) = tmpRef; |
2304df62 | 6340 | SvROK_on(sv); |
2304df62 AD |
6341 | return sv; |
6342 | } | |
6343 | ||
ff276b08 | 6344 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
6345 | * newRV_inc is in fact #defined to newRV in sv.h |
6346 | */ | |
6347 | ||
5f05dabc | 6348 | SV * |
864dbfa3 | 6349 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 6350 | { |
5f6447b6 | 6351 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 6352 | } |
5f05dabc | 6353 | |
954c1994 GS |
6354 | /* |
6355 | =for apidoc newSVsv | |
6356 | ||
6357 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 6358 | (Uses C<sv_setsv>). |
954c1994 GS |
6359 | |
6360 | =cut | |
6361 | */ | |
6362 | ||
79072805 | 6363 | SV * |
864dbfa3 | 6364 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 6365 | { |
463ee0b2 | 6366 | register SV *sv; |
79072805 LW |
6367 | |
6368 | if (!old) | |
6369 | return Nullsv; | |
8990e307 | 6370 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 PM |
6371 | if (ckWARN_d(WARN_INTERNAL)) |
6372 | Perl_warner(aTHX_ WARN_INTERNAL, "semi-panic: attempt to dup freed string"); | |
79072805 LW |
6373 | return Nullsv; |
6374 | } | |
4561caa4 | 6375 | new_SV(sv); |
ff68c719 | 6376 | if (SvTEMP(old)) { |
6377 | SvTEMP_off(old); | |
463ee0b2 | 6378 | sv_setsv(sv,old); |
ff68c719 | 6379 | SvTEMP_on(old); |
79072805 LW |
6380 | } |
6381 | else | |
463ee0b2 LW |
6382 | sv_setsv(sv,old); |
6383 | return sv; | |
79072805 LW |
6384 | } |
6385 | ||
645c22ef DM |
6386 | /* |
6387 | =for apidoc sv_reset | |
6388 | ||
6389 | Underlying implementation for the C<reset> Perl function. | |
6390 | Note that the perl-level function is vaguely deprecated. | |
6391 | ||
6392 | =cut | |
6393 | */ | |
6394 | ||
79072805 | 6395 | void |
864dbfa3 | 6396 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 LW |
6397 | { |
6398 | register HE *entry; | |
6399 | register GV *gv; | |
6400 | register SV *sv; | |
6401 | register I32 i; | |
6402 | register PMOP *pm; | |
6403 | register I32 max; | |
4802d5d7 | 6404 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 6405 | |
49d8d3a1 MB |
6406 | if (!stash) |
6407 | return; | |
6408 | ||
79072805 LW |
6409 | if (!*s) { /* reset ?? searches */ |
6410 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 6411 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
6412 | } |
6413 | return; | |
6414 | } | |
6415 | ||
6416 | /* reset variables */ | |
6417 | ||
6418 | if (!HvARRAY(stash)) | |
6419 | return; | |
463ee0b2 LW |
6420 | |
6421 | Zero(todo, 256, char); | |
79072805 | 6422 | while (*s) { |
4802d5d7 | 6423 | i = (unsigned char)*s; |
79072805 LW |
6424 | if (s[1] == '-') { |
6425 | s += 2; | |
6426 | } | |
4802d5d7 | 6427 | max = (unsigned char)*s++; |
79072805 | 6428 | for ( ; i <= max; i++) { |
463ee0b2 LW |
6429 | todo[i] = 1; |
6430 | } | |
a0d0e21e | 6431 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 6432 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
6433 | entry; |
6434 | entry = HeNEXT(entry)) | |
6435 | { | |
1edc1566 | 6436 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 6437 | continue; |
1edc1566 | 6438 | gv = (GV*)HeVAL(entry); |
79072805 | 6439 | sv = GvSV(gv); |
9e35f4b3 GS |
6440 | if (SvTHINKFIRST(sv)) { |
6441 | if (!SvREADONLY(sv) && SvROK(sv)) | |
6442 | sv_unref(sv); | |
6443 | continue; | |
6444 | } | |
a0d0e21e | 6445 | (void)SvOK_off(sv); |
79072805 LW |
6446 | if (SvTYPE(sv) >= SVt_PV) { |
6447 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
6448 | if (SvPVX(sv) != Nullch) |
6449 | *SvPVX(sv) = '\0'; | |
44a8e56a | 6450 | SvTAINT(sv); |
79072805 LW |
6451 | } |
6452 | if (GvAV(gv)) { | |
6453 | av_clear(GvAV(gv)); | |
6454 | } | |
44a8e56a | 6455 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 6456 | hv_clear(GvHV(gv)); |
fa6a1c44 | 6457 | #ifdef USE_ENVIRON_ARRAY |
3280af22 | 6458 | if (gv == PL_envgv) |
79072805 | 6459 | environ[0] = Nullch; |
a0d0e21e | 6460 | #endif |
79072805 LW |
6461 | } |
6462 | } | |
6463 | } | |
6464 | } | |
6465 | } | |
6466 | ||
645c22ef DM |
6467 | /* |
6468 | =for apidoc sv_2io | |
6469 | ||
6470 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
6471 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
6472 | named after the PV if we're a string. | |
6473 | ||
6474 | =cut | |
6475 | */ | |
6476 | ||
46fc3d4c | 6477 | IO* |
864dbfa3 | 6478 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 6479 | { |
6480 | IO* io; | |
6481 | GV* gv; | |
2d8e6c8d | 6482 | STRLEN n_a; |
46fc3d4c | 6483 | |
6484 | switch (SvTYPE(sv)) { | |
6485 | case SVt_PVIO: | |
6486 | io = (IO*)sv; | |
6487 | break; | |
6488 | case SVt_PVGV: | |
6489 | gv = (GV*)sv; | |
6490 | io = GvIO(gv); | |
6491 | if (!io) | |
cea2e8a9 | 6492 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 6493 | break; |
6494 | default: | |
6495 | if (!SvOK(sv)) | |
cea2e8a9 | 6496 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 6497 | if (SvROK(sv)) |
6498 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 6499 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 6500 | if (gv) |
6501 | io = GvIO(gv); | |
6502 | else | |
6503 | io = 0; | |
6504 | if (!io) | |
cea2e8a9 | 6505 | Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a)); |
46fc3d4c | 6506 | break; |
6507 | } | |
6508 | return io; | |
6509 | } | |
6510 | ||
645c22ef DM |
6511 | /* |
6512 | =for apidoc sv_2cv | |
6513 | ||
6514 | Using various gambits, try to get a CV from an SV; in addition, try if | |
6515 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
6516 | ||
6517 | =cut | |
6518 | */ | |
6519 | ||
79072805 | 6520 | CV * |
864dbfa3 | 6521 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 LW |
6522 | { |
6523 | GV *gv; | |
6524 | CV *cv; | |
2d8e6c8d | 6525 | STRLEN n_a; |
79072805 LW |
6526 | |
6527 | if (!sv) | |
93a17b20 | 6528 | return *gvp = Nullgv, Nullcv; |
79072805 | 6529 | switch (SvTYPE(sv)) { |
79072805 LW |
6530 | case SVt_PVCV: |
6531 | *st = CvSTASH(sv); | |
6532 | *gvp = Nullgv; | |
6533 | return (CV*)sv; | |
6534 | case SVt_PVHV: | |
6535 | case SVt_PVAV: | |
6536 | *gvp = Nullgv; | |
6537 | return Nullcv; | |
8990e307 LW |
6538 | case SVt_PVGV: |
6539 | gv = (GV*)sv; | |
a0d0e21e | 6540 | *gvp = gv; |
8990e307 LW |
6541 | *st = GvESTASH(gv); |
6542 | goto fix_gv; | |
6543 | ||
79072805 | 6544 | default: |
a0d0e21e LW |
6545 | if (SvGMAGICAL(sv)) |
6546 | mg_get(sv); | |
6547 | if (SvROK(sv)) { | |
f5284f61 IZ |
6548 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
6549 | tryAMAGICunDEREF(to_cv); | |
6550 | ||
62f274bf GS |
6551 | sv = SvRV(sv); |
6552 | if (SvTYPE(sv) == SVt_PVCV) { | |
6553 | cv = (CV*)sv; | |
6554 | *gvp = Nullgv; | |
6555 | *st = CvSTASH(cv); | |
6556 | return cv; | |
6557 | } | |
6558 | else if(isGV(sv)) | |
6559 | gv = (GV*)sv; | |
6560 | else | |
cea2e8a9 | 6561 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 6562 | } |
62f274bf | 6563 | else if (isGV(sv)) |
79072805 LW |
6564 | gv = (GV*)sv; |
6565 | else | |
2d8e6c8d | 6566 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
6567 | *gvp = gv; |
6568 | if (!gv) | |
6569 | return Nullcv; | |
6570 | *st = GvESTASH(gv); | |
8990e307 | 6571 | fix_gv: |
8ebc5c01 | 6572 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 6573 | SV *tmpsv; |
748a9306 | 6574 | ENTER; |
4633a7c4 | 6575 | tmpsv = NEWSV(704,0); |
16660edb | 6576 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
6577 | /* XXX this is probably not what they think they're getting. |
6578 | * It has the same effect as "sub name;", i.e. just a forward | |
6579 | * declaration! */ | |
774d564b | 6580 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
6581 | newSVOP(OP_CONST, 0, tmpsv), |
6582 | Nullop, | |
8990e307 | 6583 | Nullop); |
748a9306 | 6584 | LEAVE; |
8ebc5c01 | 6585 | if (!GvCVu(gv)) |
cea2e8a9 | 6586 | Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a)); |
8990e307 | 6587 | } |
8ebc5c01 | 6588 | return GvCVu(gv); |
79072805 LW |
6589 | } |
6590 | } | |
6591 | ||
c461cf8f JH |
6592 | /* |
6593 | =for apidoc sv_true | |
6594 | ||
6595 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
6596 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
6597 | instead use an in-line version. | |
c461cf8f JH |
6598 | |
6599 | =cut | |
6600 | */ | |
6601 | ||
79072805 | 6602 | I32 |
864dbfa3 | 6603 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 6604 | { |
8990e307 LW |
6605 | if (!sv) |
6606 | return 0; | |
79072805 | 6607 | if (SvPOK(sv)) { |
4e35701f NIS |
6608 | register XPV* tXpv; |
6609 | if ((tXpv = (XPV*)SvANY(sv)) && | |
c2f1de04 | 6610 | (tXpv->xpv_cur > 1 || |
4e35701f | 6611 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
6612 | return 1; |
6613 | else | |
6614 | return 0; | |
6615 | } | |
6616 | else { | |
6617 | if (SvIOK(sv)) | |
463ee0b2 | 6618 | return SvIVX(sv) != 0; |
79072805 LW |
6619 | else { |
6620 | if (SvNOK(sv)) | |
463ee0b2 | 6621 | return SvNVX(sv) != 0.0; |
79072805 | 6622 | else |
463ee0b2 | 6623 | return sv_2bool(sv); |
79072805 LW |
6624 | } |
6625 | } | |
6626 | } | |
79072805 | 6627 | |
645c22ef DM |
6628 | /* |
6629 | =for apidoc sv_iv | |
6630 | ||
6631 | A private implementation of the C<SvIVx> macro for compilers which can't | |
6632 | cope with complex macro expressions. Always use the macro instead. | |
6633 | ||
6634 | =cut | |
6635 | */ | |
6636 | ||
ff68c719 | 6637 | IV |
864dbfa3 | 6638 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 6639 | { |
25da4f38 IZ |
6640 | if (SvIOK(sv)) { |
6641 | if (SvIsUV(sv)) | |
6642 | return (IV)SvUVX(sv); | |
ff68c719 | 6643 | return SvIVX(sv); |
25da4f38 | 6644 | } |
ff68c719 | 6645 | return sv_2iv(sv); |
85e6fe83 | 6646 | } |
85e6fe83 | 6647 | |
645c22ef DM |
6648 | /* |
6649 | =for apidoc sv_uv | |
6650 | ||
6651 | A private implementation of the C<SvUVx> macro for compilers which can't | |
6652 | cope with complex macro expressions. Always use the macro instead. | |
6653 | ||
6654 | =cut | |
6655 | */ | |
6656 | ||
ff68c719 | 6657 | UV |
864dbfa3 | 6658 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 6659 | { |
25da4f38 IZ |
6660 | if (SvIOK(sv)) { |
6661 | if (SvIsUV(sv)) | |
6662 | return SvUVX(sv); | |
6663 | return (UV)SvIVX(sv); | |
6664 | } | |
ff68c719 | 6665 | return sv_2uv(sv); |
6666 | } | |
85e6fe83 | 6667 | |
645c22ef DM |
6668 | /* |
6669 | =for apidoc sv_nv | |
6670 | ||
6671 | A private implementation of the C<SvNVx> macro for compilers which can't | |
6672 | cope with complex macro expressions. Always use the macro instead. | |
6673 | ||
6674 | =cut | |
6675 | */ | |
6676 | ||
65202027 | 6677 | NV |
864dbfa3 | 6678 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 6679 | { |
ff68c719 | 6680 | if (SvNOK(sv)) |
6681 | return SvNVX(sv); | |
6682 | return sv_2nv(sv); | |
79072805 | 6683 | } |
79072805 | 6684 | |
645c22ef DM |
6685 | /* |
6686 | =for apidoc sv_pv | |
6687 | ||
6688 | A private implementation of the C<SvPV_nolen> macro for compilers which can't | |
6689 | cope with complex macro expressions. Always use the macro instead. | |
6690 | ||
6691 | =cut | |
6692 | */ | |
6693 | ||
79072805 | 6694 | char * |
864dbfa3 | 6695 | Perl_sv_pv(pTHX_ SV *sv) |
1fa8b10d JD |
6696 | { |
6697 | STRLEN n_a; | |
6698 | ||
6699 | if (SvPOK(sv)) | |
6700 | return SvPVX(sv); | |
6701 | ||
6702 | return sv_2pv(sv, &n_a); | |
6703 | } | |
6704 | ||
645c22ef DM |
6705 | /* |
6706 | =for apidoc sv_pvn | |
6707 | ||
6708 | A private implementation of the C<SvPV> macro for compilers which can't | |
6709 | cope with complex macro expressions. Always use the macro instead. | |
6710 | ||
6711 | =cut | |
6712 | */ | |
6713 | ||
1fa8b10d | 6714 | char * |
864dbfa3 | 6715 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 6716 | { |
85e6fe83 LW |
6717 | if (SvPOK(sv)) { |
6718 | *lp = SvCUR(sv); | |
a0d0e21e | 6719 | return SvPVX(sv); |
85e6fe83 | 6720 | } |
463ee0b2 | 6721 | return sv_2pv(sv, lp); |
79072805 | 6722 | } |
79072805 | 6723 | |
c461cf8f JH |
6724 | /* |
6725 | =for apidoc sv_pvn_force | |
6726 | ||
6727 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
6728 | A private implementation of the C<SvPV_force> macro for compilers which |
6729 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f JH |
6730 | |
6731 | =cut | |
6732 | */ | |
6733 | ||
a0d0e21e | 6734 | char * |
864dbfa3 | 6735 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) |
a0d0e21e | 6736 | { |
36f65ada | 6737 | return sv_pvn_force_flags(sv, lp, SV_GMAGIC); |
8d6d96c1 HS |
6738 | } |
6739 | ||
6740 | /* | |
6741 | =for apidoc sv_pvn_force_flags | |
6742 | ||
6743 | Get a sensible string out of the SV somehow. | |
6744 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
6745 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
6746 | implemented in terms of this function. | |
645c22ef DM |
6747 | You normally want to use the various wrapper macros instead: see |
6748 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
6749 | |
6750 | =cut | |
6751 | */ | |
6752 | ||
6753 | char * | |
6754 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
6755 | { | |
a0d0e21e LW |
6756 | char *s; |
6757 | ||
6fc92669 GS |
6758 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
6759 | sv_force_normal(sv); | |
1c846c1f | 6760 | |
a0d0e21e LW |
6761 | if (SvPOK(sv)) { |
6762 | *lp = SvCUR(sv); | |
6763 | } | |
6764 | else { | |
748a9306 | 6765 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
cea2e8a9 | 6766 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
53e06cf0 | 6767 | OP_NAME(PL_op)); |
a0d0e21e | 6768 | } |
4633a7c4 | 6769 | else |
8d6d96c1 | 6770 | s = sv_2pv_flags(sv, lp, flags); |
a0d0e21e LW |
6771 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
6772 | STRLEN len = *lp; | |
1c846c1f | 6773 | |
a0d0e21e LW |
6774 | if (SvROK(sv)) |
6775 | sv_unref(sv); | |
6776 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
6777 | SvGROW(sv, len + 1); | |
6778 | Move(s,SvPVX(sv),len,char); | |
6779 | SvCUR_set(sv, len); | |
6780 | *SvEND(sv) = '\0'; | |
6781 | } | |
6782 | if (!SvPOK(sv)) { | |
6783 | SvPOK_on(sv); /* validate pointer */ | |
6784 | SvTAINT(sv); | |
1d7c1841 GS |
6785 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
6786 | PTR2UV(sv),SvPVX(sv))); | |
a0d0e21e LW |
6787 | } |
6788 | } | |
6789 | return SvPVX(sv); | |
6790 | } | |
6791 | ||
645c22ef DM |
6792 | /* |
6793 | =for apidoc sv_pvbyte | |
6794 | ||
6795 | A private implementation of the C<SvPVbyte_nolen> macro for compilers | |
6796 | which can't cope with complex macro expressions. Always use the macro | |
6797 | instead. | |
6798 | ||
6799 | =cut | |
6800 | */ | |
6801 | ||
a0d0e21e | 6802 | char * |
7340a771 GS |
6803 | Perl_sv_pvbyte(pTHX_ SV *sv) |
6804 | { | |
ffebcc3e | 6805 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6806 | return sv_pv(sv); |
6807 | } | |
6808 | ||
645c22ef DM |
6809 | /* |
6810 | =for apidoc sv_pvbyten | |
6811 | ||
6812 | A private implementation of the C<SvPVbyte> macro for compilers | |
6813 | which can't cope with complex macro expressions. Always use the macro | |
6814 | instead. | |
6815 | ||
6816 | =cut | |
6817 | */ | |
6818 | ||
7340a771 GS |
6819 | char * |
6820 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
6821 | { | |
ffebcc3e | 6822 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6823 | return sv_pvn(sv,lp); |
6824 | } | |
6825 | ||
645c22ef DM |
6826 | /* |
6827 | =for apidoc sv_pvbyten_force | |
6828 | ||
6829 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
6830 | which can't cope with complex macro expressions. Always use the macro | |
6831 | instead. | |
6832 | ||
6833 | =cut | |
6834 | */ | |
6835 | ||
7340a771 GS |
6836 | char * |
6837 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
6838 | { | |
ffebcc3e | 6839 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6840 | return sv_pvn_force(sv,lp); |
6841 | } | |
6842 | ||
645c22ef DM |
6843 | /* |
6844 | =for apidoc sv_pvutf8 | |
6845 | ||
6846 | A private implementation of the C<SvPVutf8_nolen> macro for compilers | |
6847 | which can't cope with complex macro expressions. Always use the macro | |
6848 | instead. | |
6849 | ||
6850 | =cut | |
6851 | */ | |
6852 | ||
7340a771 GS |
6853 | char * |
6854 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
6855 | { | |
560a288e | 6856 | sv_utf8_upgrade(sv); |
7340a771 GS |
6857 | return sv_pv(sv); |
6858 | } | |
6859 | ||
645c22ef DM |
6860 | /* |
6861 | =for apidoc sv_pvutf8n | |
6862 | ||
6863 | A private implementation of the C<SvPVutf8> macro for compilers | |
6864 | which can't cope with complex macro expressions. Always use the macro | |
6865 | instead. | |
6866 | ||
6867 | =cut | |
6868 | */ | |
6869 | ||
7340a771 GS |
6870 | char * |
6871 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
6872 | { | |
560a288e | 6873 | sv_utf8_upgrade(sv); |
7340a771 GS |
6874 | return sv_pvn(sv,lp); |
6875 | } | |
6876 | ||
c461cf8f JH |
6877 | /* |
6878 | =for apidoc sv_pvutf8n_force | |
6879 | ||
645c22ef DM |
6880 | A private implementation of the C<SvPVutf8_force> macro for compilers |
6881 | which can't cope with complex macro expressions. Always use the macro | |
6882 | instead. | |
c461cf8f JH |
6883 | |
6884 | =cut | |
6885 | */ | |
6886 | ||
7340a771 GS |
6887 | char * |
6888 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
6889 | { | |
560a288e | 6890 | sv_utf8_upgrade(sv); |
7340a771 GS |
6891 | return sv_pvn_force(sv,lp); |
6892 | } | |
6893 | ||
c461cf8f JH |
6894 | /* |
6895 | =for apidoc sv_reftype | |
6896 | ||
6897 | Returns a string describing what the SV is a reference to. | |
6898 | ||
6899 | =cut | |
6900 | */ | |
6901 | ||
7340a771 | 6902 | char * |
864dbfa3 | 6903 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e LW |
6904 | { |
6905 | if (ob && SvOBJECT(sv)) | |
6906 | return HvNAME(SvSTASH(sv)); | |
6907 | else { | |
6908 | switch (SvTYPE(sv)) { | |
6909 | case SVt_NULL: | |
6910 | case SVt_IV: | |
6911 | case SVt_NV: | |
6912 | case SVt_RV: | |
6913 | case SVt_PV: | |
6914 | case SVt_PVIV: | |
6915 | case SVt_PVNV: | |
6916 | case SVt_PVMG: | |
6917 | case SVt_PVBM: | |
6918 | if (SvROK(sv)) | |
6919 | return "REF"; | |
6920 | else | |
6921 | return "SCALAR"; | |
6922 | case SVt_PVLV: return "LVALUE"; | |
6923 | case SVt_PVAV: return "ARRAY"; | |
6924 | case SVt_PVHV: return "HASH"; | |
6925 | case SVt_PVCV: return "CODE"; | |
6926 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 6927 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 6928 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
6929 | default: return "UNKNOWN"; |
6930 | } | |
6931 | } | |
6932 | } | |
6933 | ||
954c1994 GS |
6934 | /* |
6935 | =for apidoc sv_isobject | |
6936 | ||
6937 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
6938 | object. If the SV is not an RV, or if the object is not blessed, then this | |
6939 | will return false. | |
6940 | ||
6941 | =cut | |
6942 | */ | |
6943 | ||
463ee0b2 | 6944 | int |
864dbfa3 | 6945 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 6946 | { |
68dc0745 | 6947 | if (!sv) |
6948 | return 0; | |
6949 | if (SvGMAGICAL(sv)) | |
6950 | mg_get(sv); | |
85e6fe83 LW |
6951 | if (!SvROK(sv)) |
6952 | return 0; | |
6953 | sv = (SV*)SvRV(sv); | |
6954 | if (!SvOBJECT(sv)) | |
6955 | return 0; | |
6956 | return 1; | |
6957 | } | |
6958 | ||
954c1994 GS |
6959 | /* |
6960 | =for apidoc sv_isa | |
6961 | ||
6962 | Returns a boolean indicating whether the SV is blessed into the specified | |
6963 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
6964 | an inheritance relationship. | |
6965 | ||
6966 | =cut | |
6967 | */ | |
6968 | ||
85e6fe83 | 6969 | int |
864dbfa3 | 6970 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 6971 | { |
68dc0745 | 6972 | if (!sv) |
6973 | return 0; | |
6974 | if (SvGMAGICAL(sv)) | |
6975 | mg_get(sv); | |
ed6116ce | 6976 | if (!SvROK(sv)) |
463ee0b2 | 6977 | return 0; |
ed6116ce LW |
6978 | sv = (SV*)SvRV(sv); |
6979 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
6980 | return 0; |
6981 | ||
6982 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
6983 | } | |
6984 | ||
954c1994 GS |
6985 | /* |
6986 | =for apidoc newSVrv | |
6987 | ||
6988 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
6989 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
6990 | be blessed in the specified package. The new SV is returned and its | |
6991 | reference count is 1. | |
6992 | ||
6993 | =cut | |
6994 | */ | |
6995 | ||
463ee0b2 | 6996 | SV* |
864dbfa3 | 6997 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 6998 | { |
463ee0b2 LW |
6999 | SV *sv; |
7000 | ||
4561caa4 | 7001 | new_SV(sv); |
51cf62d8 | 7002 | |
2213622d | 7003 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 | 7004 | SvAMAGIC_off(rv); |
51cf62d8 | 7005 | |
0199fce9 JD |
7006 | if (SvTYPE(rv) >= SVt_PVMG) { |
7007 | U32 refcnt = SvREFCNT(rv); | |
7008 | SvREFCNT(rv) = 0; | |
7009 | sv_clear(rv); | |
7010 | SvFLAGS(rv) = 0; | |
7011 | SvREFCNT(rv) = refcnt; | |
7012 | } | |
7013 | ||
51cf62d8 | 7014 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
7015 | sv_upgrade(rv, SVt_RV); |
7016 | else if (SvTYPE(rv) > SVt_RV) { | |
7017 | (void)SvOOK_off(rv); | |
7018 | if (SvPVX(rv) && SvLEN(rv)) | |
7019 | Safefree(SvPVX(rv)); | |
7020 | SvCUR_set(rv, 0); | |
7021 | SvLEN_set(rv, 0); | |
7022 | } | |
51cf62d8 OT |
7023 | |
7024 | (void)SvOK_off(rv); | |
053fc874 | 7025 | SvRV(rv) = sv; |
ed6116ce | 7026 | SvROK_on(rv); |
463ee0b2 | 7027 | |
a0d0e21e LW |
7028 | if (classname) { |
7029 | HV* stash = gv_stashpv(classname, TRUE); | |
7030 | (void)sv_bless(rv, stash); | |
7031 | } | |
7032 | return sv; | |
7033 | } | |
7034 | ||
954c1994 GS |
7035 | /* |
7036 | =for apidoc sv_setref_pv | |
7037 | ||
7038 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
7039 | argument will be upgraded to an RV. That RV will be modified to point to | |
7040 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
7041 | into the SV. The C<classname> argument indicates the package for the | |
7042 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7043 | will be returned and will have a reference count of 1. | |
7044 | ||
7045 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
7046 | objects will become corrupted by the pointer copy process. | |
7047 | ||
7048 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
7049 | ||
7050 | =cut | |
7051 | */ | |
7052 | ||
a0d0e21e | 7053 | SV* |
864dbfa3 | 7054 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 7055 | { |
189b2af5 | 7056 | if (!pv) { |
3280af22 | 7057 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
7058 | SvSETMAGIC(rv); |
7059 | } | |
a0d0e21e | 7060 | else |
56431972 | 7061 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
7062 | return rv; |
7063 | } | |
7064 | ||
954c1994 GS |
7065 | /* |
7066 | =for apidoc sv_setref_iv | |
7067 | ||
7068 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
7069 | argument will be upgraded to an RV. That RV will be modified to point to | |
7070 | the new SV. The C<classname> argument indicates the package for the | |
7071 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7072 | will be returned and will have a reference count of 1. | |
7073 | ||
7074 | =cut | |
7075 | */ | |
7076 | ||
a0d0e21e | 7077 | SV* |
864dbfa3 | 7078 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
7079 | { |
7080 | sv_setiv(newSVrv(rv,classname), iv); | |
7081 | return rv; | |
7082 | } | |
7083 | ||
954c1994 | 7084 | /* |
e1c57cef JH |
7085 | =for apidoc sv_setref_uv |
7086 | ||
7087 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
7088 | argument will be upgraded to an RV. That RV will be modified to point to | |
7089 | the new SV. The C<classname> argument indicates the package for the | |
7090 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7091 | will be returned and will have a reference count of 1. | |
7092 | ||
7093 | =cut | |
7094 | */ | |
7095 | ||
7096 | SV* | |
7097 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
7098 | { | |
7099 | sv_setuv(newSVrv(rv,classname), uv); | |
7100 | return rv; | |
7101 | } | |
7102 | ||
7103 | /* | |
954c1994 GS |
7104 | =for apidoc sv_setref_nv |
7105 | ||
7106 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
7107 | argument will be upgraded to an RV. That RV will be modified to point to | |
7108 | the new SV. The C<classname> argument indicates the package for the | |
7109 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7110 | will be returned and will have a reference count of 1. | |
7111 | ||
7112 | =cut | |
7113 | */ | |
7114 | ||
a0d0e21e | 7115 | SV* |
65202027 | 7116 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
7117 | { |
7118 | sv_setnv(newSVrv(rv,classname), nv); | |
7119 | return rv; | |
7120 | } | |
463ee0b2 | 7121 | |
954c1994 GS |
7122 | /* |
7123 | =for apidoc sv_setref_pvn | |
7124 | ||
7125 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
7126 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
7127 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
7128 | argument indicates the package for the blessing. Set C<classname> to | |
7129 | C<Nullch> to avoid the blessing. The new SV will be returned and will have | |
7130 | a reference count of 1. | |
7131 | ||
7132 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
7133 | ||
7134 | =cut | |
7135 | */ | |
7136 | ||
a0d0e21e | 7137 | SV* |
864dbfa3 | 7138 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
7139 | { |
7140 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
7141 | return rv; |
7142 | } | |
7143 | ||
954c1994 GS |
7144 | /* |
7145 | =for apidoc sv_bless | |
7146 | ||
7147 | Blesses an SV into a specified package. The SV must be an RV. The package | |
7148 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
7149 | of the SV is unaffected. | |
7150 | ||
7151 | =cut | |
7152 | */ | |
7153 | ||
a0d0e21e | 7154 | SV* |
864dbfa3 | 7155 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 7156 | { |
76e3520e | 7157 | SV *tmpRef; |
a0d0e21e | 7158 | if (!SvROK(sv)) |
cea2e8a9 | 7159 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
7160 | tmpRef = SvRV(sv); |
7161 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
7162 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 7163 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
7164 | if (SvOBJECT(tmpRef)) { |
7165 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7166 | --PL_sv_objcount; |
76e3520e | 7167 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 7168 | } |
a0d0e21e | 7169 | } |
76e3520e GS |
7170 | SvOBJECT_on(tmpRef); |
7171 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7172 | ++PL_sv_objcount; |
76e3520e GS |
7173 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
7174 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e | 7175 | |
2e3febc6 CS |
7176 | if (Gv_AMG(stash)) |
7177 | SvAMAGIC_on(sv); | |
7178 | else | |
7179 | SvAMAGIC_off(sv); | |
a0d0e21e LW |
7180 | |
7181 | return sv; | |
7182 | } | |
7183 | ||
645c22ef DM |
7184 | /* Downgrades a PVGV to a PVMG. |
7185 | * | |
7186 | * XXX This function doesn't actually appear to be used anywhere | |
7187 | * DAPM 15-Jun-01 | |
7188 | */ | |
7189 | ||
76e3520e | 7190 | STATIC void |
cea2e8a9 | 7191 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 7192 | { |
850fabdf GS |
7193 | void *xpvmg; |
7194 | ||
a0d0e21e LW |
7195 | assert(SvTYPE(sv) == SVt_PVGV); |
7196 | SvFAKE_off(sv); | |
7197 | if (GvGP(sv)) | |
1edc1566 | 7198 | gp_free((GV*)sv); |
e826b3c7 GS |
7199 | if (GvSTASH(sv)) { |
7200 | SvREFCNT_dec(GvSTASH(sv)); | |
7201 | GvSTASH(sv) = Nullhv; | |
7202 | } | |
14befaf4 | 7203 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 7204 | Safefree(GvNAME(sv)); |
a5f75d66 | 7205 | GvMULTI_off(sv); |
850fabdf GS |
7206 | |
7207 | /* need to keep SvANY(sv) in the right arena */ | |
7208 | xpvmg = new_XPVMG(); | |
7209 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
7210 | del_XPVGV(SvANY(sv)); | |
7211 | SvANY(sv) = xpvmg; | |
7212 | ||
a0d0e21e LW |
7213 | SvFLAGS(sv) &= ~SVTYPEMASK; |
7214 | SvFLAGS(sv) |= SVt_PVMG; | |
7215 | } | |
7216 | ||
954c1994 | 7217 | /* |
840a7b70 | 7218 | =for apidoc sv_unref_flags |
954c1994 GS |
7219 | |
7220 | Unsets the RV status of the SV, and decrements the reference count of | |
7221 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
7222 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
7223 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
7224 | (otherwise the decrementing is conditional on the reference count being | |
7225 | different from one or the reference being a readonly SV). | |
7889fe52 | 7226 | See C<SvROK_off>. |
954c1994 GS |
7227 | |
7228 | =cut | |
7229 | */ | |
7230 | ||
ed6116ce | 7231 | void |
840a7b70 | 7232 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 7233 | { |
a0d0e21e | 7234 | SV* rv = SvRV(sv); |
810b8aa5 GS |
7235 | |
7236 | if (SvWEAKREF(sv)) { | |
7237 | sv_del_backref(sv); | |
7238 | SvWEAKREF_off(sv); | |
7239 | SvRV(sv) = 0; | |
7240 | return; | |
7241 | } | |
ed6116ce LW |
7242 | SvRV(sv) = 0; |
7243 | SvROK_off(sv); | |
840a7b70 | 7244 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv) || flags) /* SV_IMMEDIATE_UNREF */ |
4633a7c4 | 7245 | SvREFCNT_dec(rv); |
840a7b70 | 7246 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 7247 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 7248 | } |
8990e307 | 7249 | |
840a7b70 IZ |
7250 | /* |
7251 | =for apidoc sv_unref | |
7252 | ||
7253 | Unsets the RV status of the SV, and decrements the reference count of | |
7254 | whatever was being referenced by the RV. This can almost be thought of | |
7255 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 7256 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
7257 | |
7258 | =cut | |
7259 | */ | |
7260 | ||
7261 | void | |
7262 | Perl_sv_unref(pTHX_ SV *sv) | |
7263 | { | |
7264 | sv_unref_flags(sv, 0); | |
7265 | } | |
7266 | ||
645c22ef DM |
7267 | /* |
7268 | =for apidoc sv_taint | |
7269 | ||
7270 | Taint an SV. Use C<SvTAINTED_on> instead. | |
7271 | =cut | |
7272 | */ | |
7273 | ||
bbce6d69 | 7274 | void |
864dbfa3 | 7275 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 7276 | { |
14befaf4 | 7277 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 7278 | } |
7279 | ||
645c22ef DM |
7280 | /* |
7281 | =for apidoc sv_untaint | |
7282 | ||
7283 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
7284 | =cut | |
7285 | */ | |
7286 | ||
bbce6d69 | 7287 | void |
864dbfa3 | 7288 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 7289 | { |
13f57bf8 | 7290 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7291 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 7292 | if (mg) |
565764a8 | 7293 | mg->mg_len &= ~1; |
36477c24 | 7294 | } |
bbce6d69 | 7295 | } |
7296 | ||
645c22ef DM |
7297 | /* |
7298 | =for apidoc sv_tainted | |
7299 | ||
7300 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
7301 | =cut | |
7302 | */ | |
7303 | ||
bbce6d69 | 7304 | bool |
864dbfa3 | 7305 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 7306 | { |
13f57bf8 | 7307 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7308 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 7309 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 7310 | return TRUE; |
7311 | } | |
7312 | return FALSE; | |
bbce6d69 | 7313 | } |
7314 | ||
954c1994 GS |
7315 | /* |
7316 | =for apidoc sv_setpviv | |
7317 | ||
7318 | Copies an integer into the given SV, also updating its string value. | |
7319 | Does not handle 'set' magic. See C<sv_setpviv_mg>. | |
7320 | ||
7321 | =cut | |
7322 | */ | |
7323 | ||
84902520 | 7324 | void |
864dbfa3 | 7325 | Perl_sv_setpviv(pTHX_ SV *sv, IV iv) |
84902520 | 7326 | { |
25da4f38 IZ |
7327 | char buf[TYPE_CHARS(UV)]; |
7328 | char *ebuf; | |
7329 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
84902520 | 7330 | |
25da4f38 | 7331 | sv_setpvn(sv, ptr, ebuf - ptr); |
84902520 TB |
7332 | } |
7333 | ||
954c1994 GS |
7334 | /* |
7335 | =for apidoc sv_setpviv_mg | |
7336 | ||
7337 | Like C<sv_setpviv>, but also handles 'set' magic. | |
7338 | ||
7339 | =cut | |
7340 | */ | |
7341 | ||
ef50df4b | 7342 | void |
864dbfa3 | 7343 | Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) |
ef50df4b | 7344 | { |
25da4f38 IZ |
7345 | char buf[TYPE_CHARS(UV)]; |
7346 | char *ebuf; | |
7347 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
7348 | ||
7349 | sv_setpvn(sv, ptr, ebuf - ptr); | |
ef50df4b GS |
7350 | SvSETMAGIC(sv); |
7351 | } | |
7352 | ||
cea2e8a9 | 7353 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7354 | |
7355 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7356 | * version of the main function, (which may itself be aliased to us). | |
7357 | * Don't access this version directly. | |
7358 | */ | |
7359 | ||
cea2e8a9 GS |
7360 | void |
7361 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
7362 | { | |
7363 | dTHX; | |
7364 | va_list args; | |
7365 | va_start(args, pat); | |
c5be433b | 7366 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
7367 | va_end(args); |
7368 | } | |
7369 | ||
645c22ef DM |
7370 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7371 | * version of the main function, (which may itself be aliased to us). | |
7372 | * Don't access this version directly. | |
7373 | */ | |
cea2e8a9 GS |
7374 | |
7375 | void | |
7376 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7377 | { | |
7378 | dTHX; | |
7379 | va_list args; | |
7380 | va_start(args, pat); | |
c5be433b | 7381 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 7382 | va_end(args); |
cea2e8a9 GS |
7383 | } |
7384 | #endif | |
7385 | ||
954c1994 GS |
7386 | /* |
7387 | =for apidoc sv_setpvf | |
7388 | ||
7389 | Processes its arguments like C<sprintf> and sets an SV to the formatted | |
7390 | output. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
7391 | ||
7392 | =cut | |
7393 | */ | |
7394 | ||
46fc3d4c | 7395 | void |
864dbfa3 | 7396 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7397 | { |
7398 | va_list args; | |
46fc3d4c | 7399 | va_start(args, pat); |
c5be433b | 7400 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 7401 | va_end(args); |
7402 | } | |
7403 | ||
645c22ef DM |
7404 | /* backend for C<sv_setpvf> and C<sv_setpvf_nocontext> */ |
7405 | ||
c5be433b GS |
7406 | void |
7407 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
7408 | { | |
7409 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7410 | } | |
ef50df4b | 7411 | |
954c1994 GS |
7412 | /* |
7413 | =for apidoc sv_setpvf_mg | |
7414 | ||
7415 | Like C<sv_setpvf>, but also handles 'set' magic. | |
7416 | ||
7417 | =cut | |
7418 | */ | |
7419 | ||
ef50df4b | 7420 | void |
864dbfa3 | 7421 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7422 | { |
7423 | va_list args; | |
ef50df4b | 7424 | va_start(args, pat); |
c5be433b | 7425 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 7426 | va_end(args); |
c5be433b GS |
7427 | } |
7428 | ||
645c22ef DM |
7429 | /* backend for C<sv_setpvf_mg> C<setpvf_mg_nocontext> */ |
7430 | ||
c5be433b GS |
7431 | void |
7432 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7433 | { | |
7434 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7435 | SvSETMAGIC(sv); |
7436 | } | |
7437 | ||
cea2e8a9 | 7438 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7439 | |
7440 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7441 | * version of the main function, (which may itself be aliased to us). | |
7442 | * Don't access this version directly. | |
7443 | */ | |
7444 | ||
cea2e8a9 GS |
7445 | void |
7446 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
7447 | { | |
7448 | dTHX; | |
7449 | va_list args; | |
7450 | va_start(args, pat); | |
c5be433b | 7451 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
7452 | va_end(args); |
7453 | } | |
7454 | ||
645c22ef DM |
7455 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7456 | * version of the main function, (which may itself be aliased to us). | |
7457 | * Don't access this version directly. | |
7458 | */ | |
7459 | ||
cea2e8a9 GS |
7460 | void |
7461 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7462 | { | |
7463 | dTHX; | |
7464 | va_list args; | |
7465 | va_start(args, pat); | |
c5be433b | 7466 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 7467 | va_end(args); |
cea2e8a9 GS |
7468 | } |
7469 | #endif | |
7470 | ||
954c1994 GS |
7471 | /* |
7472 | =for apidoc sv_catpvf | |
7473 | ||
d5ce4a7c GA |
7474 | Processes its arguments like C<sprintf> and appends the formatted |
7475 | output to an SV. If the appended data contains "wide" characters | |
7476 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
7477 | and characters >255 formatted with %c), the original SV might get | |
7478 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. | |
7479 | C<SvSETMAGIC()> must typically be called after calling this function | |
7480 | to handle 'set' magic. | |
954c1994 | 7481 | |
d5ce4a7c | 7482 | =cut */ |
954c1994 | 7483 | |
46fc3d4c | 7484 | void |
864dbfa3 | 7485 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7486 | { |
7487 | va_list args; | |
46fc3d4c | 7488 | va_start(args, pat); |
c5be433b | 7489 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 7490 | va_end(args); |
7491 | } | |
7492 | ||
645c22ef DM |
7493 | /* backend for C<sv_catpvf> and C<catpvf_mg_nocontext> */ |
7494 | ||
ef50df4b | 7495 | void |
c5be433b GS |
7496 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
7497 | { | |
7498 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7499 | } | |
7500 | ||
954c1994 GS |
7501 | /* |
7502 | =for apidoc sv_catpvf_mg | |
7503 | ||
7504 | Like C<sv_catpvf>, but also handles 'set' magic. | |
7505 | ||
7506 | =cut | |
7507 | */ | |
7508 | ||
c5be433b | 7509 | void |
864dbfa3 | 7510 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7511 | { |
7512 | va_list args; | |
ef50df4b | 7513 | va_start(args, pat); |
c5be433b | 7514 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 7515 | va_end(args); |
c5be433b GS |
7516 | } |
7517 | ||
645c22ef DM |
7518 | /* backend for C<catpvf_mg> and C<catpvf_mg_nocontext> */ |
7519 | ||
c5be433b GS |
7520 | void |
7521 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7522 | { | |
7523 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7524 | SvSETMAGIC(sv); |
7525 | } | |
7526 | ||
954c1994 GS |
7527 | /* |
7528 | =for apidoc sv_vsetpvfn | |
7529 | ||
7530 | Works like C<vcatpvfn> but copies the text into the SV instead of | |
7531 | appending it. | |
7532 | ||
645c22ef DM |
7533 | Usually used via one of its frontends C<sv_setpvf> and C<sv_setpvf_mg>. |
7534 | ||
954c1994 GS |
7535 | =cut |
7536 | */ | |
7537 | ||
46fc3d4c | 7538 | void |
7d5ea4e7 | 7539 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7540 | { |
7541 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 7542 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 7543 | } |
7544 | ||
645c22ef DM |
7545 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
7546 | ||
2d00ba3b | 7547 | STATIC I32 |
9dd79c3f | 7548 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
7549 | { |
7550 | I32 var = 0; | |
7551 | switch (**pattern) { | |
7552 | case '1': case '2': case '3': | |
7553 | case '4': case '5': case '6': | |
7554 | case '7': case '8': case '9': | |
7555 | while (isDIGIT(**pattern)) | |
7556 | var = var * 10 + (*(*pattern)++ - '0'); | |
7557 | } | |
7558 | return var; | |
7559 | } | |
9dd79c3f | 7560 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 7561 | |
954c1994 GS |
7562 | /* |
7563 | =for apidoc sv_vcatpvfn | |
7564 | ||
7565 | Processes its arguments like C<vsprintf> and appends the formatted output | |
7566 | to an SV. Uses an array of SVs if the C style variable argument list is | |
7567 | missing (NULL). When running with taint checks enabled, indicates via | |
7568 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
7569 | locales). | |
7570 | ||
645c22ef DM |
7571 | Usually used via one of its frontends C<sv_catpvf> and C<sv_catpvf_mg>. |
7572 | ||
954c1994 GS |
7573 | =cut |
7574 | */ | |
7575 | ||
46fc3d4c | 7576 | void |
7d5ea4e7 | 7577 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7578 | { |
7579 | char *p; | |
7580 | char *q; | |
7581 | char *patend; | |
fc36a67e | 7582 | STRLEN origlen; |
46fc3d4c | 7583 | I32 svix = 0; |
c635e13b | 7584 | static char nullstr[] = "(null)"; |
9c5ffd7c | 7585 | SV *argsv = Nullsv; |
46fc3d4c | 7586 | |
7587 | /* no matter what, this is a string now */ | |
fc36a67e | 7588 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 7589 | |
fc36a67e | 7590 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 7591 | if (patlen == 0) |
7592 | return; | |
fc36a67e | 7593 | if (patlen == 2 && pat[0] == '%') { |
7594 | switch (pat[1]) { | |
7595 | case 's': | |
c635e13b | 7596 | if (args) { |
7597 | char *s = va_arg(*args, char*); | |
7598 | sv_catpv(sv, s ? s : nullstr); | |
7599 | } | |
7e2040f0 | 7600 | else if (svix < svmax) { |
fc36a67e | 7601 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
7602 | if (DO_UTF8(*svargs)) |
7603 | SvUTF8_on(sv); | |
7604 | } | |
fc36a67e | 7605 | return; |
7606 | case '_': | |
7607 | if (args) { | |
7e2040f0 GS |
7608 | argsv = va_arg(*args, SV*); |
7609 | sv_catsv(sv, argsv); | |
7610 | if (DO_UTF8(argsv)) | |
7611 | SvUTF8_on(sv); | |
fc36a67e | 7612 | return; |
7613 | } | |
7614 | /* See comment on '_' below */ | |
7615 | break; | |
7616 | } | |
46fc3d4c | 7617 | } |
7618 | ||
7619 | patend = (char*)pat + patlen; | |
7620 | for (p = (char*)pat; p < patend; p = q) { | |
7621 | bool alt = FALSE; | |
7622 | bool left = FALSE; | |
b22c7a20 | 7623 | bool vectorize = FALSE; |
211dfcf1 | 7624 | bool vectorarg = FALSE; |
b2e23cf9 | 7625 | bool vec_utf = FALSE; |
46fc3d4c | 7626 | char fill = ' '; |
7627 | char plus = 0; | |
7628 | char intsize = 0; | |
7629 | STRLEN width = 0; | |
fc36a67e | 7630 | STRLEN zeros = 0; |
46fc3d4c | 7631 | bool has_precis = FALSE; |
7632 | STRLEN precis = 0; | |
7e2040f0 | 7633 | bool is_utf = FALSE; |
eb3fce90 | 7634 | |
46fc3d4c | 7635 | char esignbuf[4]; |
ad391ad9 | 7636 | U8 utf8buf[UTF8_MAXLEN+1]; |
46fc3d4c | 7637 | STRLEN esignlen = 0; |
7638 | ||
7639 | char *eptr = Nullch; | |
fc36a67e | 7640 | STRLEN elen = 0; |
089c015b JH |
7641 | /* Times 4: a decimal digit takes more than 3 binary digits. |
7642 | * NV_DIG: mantissa takes than many decimal digits. | |
7643 | * Plus 32: Playing safe. */ | |
7644 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
2d4389e4 JH |
7645 | /* large enough for "%#.#f" --chip */ |
7646 | /* what about long double NVs? --jhi */ | |
b22c7a20 GS |
7647 | |
7648 | SV *vecsv; | |
a05b299f | 7649 | U8 *vecstr = Null(U8*); |
b22c7a20 | 7650 | STRLEN veclen = 0; |
46fc3d4c | 7651 | char c; |
7652 | int i; | |
9c5ffd7c | 7653 | unsigned base = 0; |
46fc3d4c | 7654 | IV iv; |
7655 | UV uv; | |
65202027 | 7656 | NV nv; |
46fc3d4c | 7657 | STRLEN have; |
7658 | STRLEN need; | |
7659 | STRLEN gap; | |
b22c7a20 GS |
7660 | char *dotstr = "."; |
7661 | STRLEN dotstrlen = 1; | |
211dfcf1 | 7662 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 7663 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
7664 | I32 epix = 0; /* explicit precision index */ |
7665 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 7666 | bool asterisk = FALSE; |
46fc3d4c | 7667 | |
211dfcf1 | 7668 | /* echo everything up to the next format specification */ |
46fc3d4c | 7669 | for (q = p; q < patend && *q != '%'; ++q) ; |
7670 | if (q > p) { | |
7671 | sv_catpvn(sv, p, q - p); | |
7672 | p = q; | |
7673 | } | |
7674 | if (q++ >= patend) | |
7675 | break; | |
7676 | ||
211dfcf1 HS |
7677 | /* |
7678 | We allow format specification elements in this order: | |
7679 | \d+\$ explicit format parameter index | |
7680 | [-+ 0#]+ flags | |
7681 | \*?(\d+\$)?v vector with optional (optionally specified) arg | |
7682 | \d+|\*(\d+\$)? width using optional (optionally specified) arg | |
7683 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
7684 | [hlqLV] size | |
7685 | [%bcdefginopsux_DFOUX] format (mandatory) | |
7686 | */ | |
7687 | if (EXPECT_NUMBER(q, width)) { | |
7688 | if (*q == '$') { | |
7689 | ++q; | |
7690 | efix = width; | |
7691 | } else { | |
7692 | goto gotwidth; | |
7693 | } | |
7694 | } | |
7695 | ||
fc36a67e | 7696 | /* FLAGS */ |
7697 | ||
46fc3d4c | 7698 | while (*q) { |
7699 | switch (*q) { | |
7700 | case ' ': | |
7701 | case '+': | |
7702 | plus = *q++; | |
7703 | continue; | |
7704 | ||
7705 | case '-': | |
7706 | left = TRUE; | |
7707 | q++; | |
7708 | continue; | |
7709 | ||
7710 | case '0': | |
7711 | fill = *q++; | |
7712 | continue; | |
7713 | ||
7714 | case '#': | |
7715 | alt = TRUE; | |
7716 | q++; | |
7717 | continue; | |
7718 | ||
fc36a67e | 7719 | default: |
7720 | break; | |
7721 | } | |
7722 | break; | |
7723 | } | |
46fc3d4c | 7724 | |
211dfcf1 | 7725 | tryasterisk: |
eb3fce90 | 7726 | if (*q == '*') { |
211dfcf1 HS |
7727 | q++; |
7728 | if (EXPECT_NUMBER(q, ewix)) | |
7729 | if (*q++ != '$') | |
7730 | goto unknown; | |
eb3fce90 | 7731 | asterisk = TRUE; |
211dfcf1 HS |
7732 | } |
7733 | if (*q == 'v') { | |
eb3fce90 | 7734 | q++; |
211dfcf1 HS |
7735 | if (vectorize) |
7736 | goto unknown; | |
9cbac4c7 | 7737 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
7738 | evix = ewix; |
7739 | ewix = 0; | |
7740 | asterisk = FALSE; | |
7741 | } | |
7742 | vectorize = TRUE; | |
7743 | goto tryasterisk; | |
eb3fce90 JH |
7744 | } |
7745 | ||
211dfcf1 HS |
7746 | if (!asterisk) |
7747 | EXPECT_NUMBER(q, width); | |
7748 | ||
7749 | if (vectorize) { | |
7750 | if (vectorarg) { | |
7751 | if (args) | |
7752 | vecsv = va_arg(*args, SV*); | |
7753 | else | |
7754 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
7755 | svargs[ewix ? ewix-1 : svix++] : &PL_sv_undef; | |
4459522c | 7756 | dotstr = SvPVx(vecsv, dotstrlen); |
211dfcf1 HS |
7757 | if (DO_UTF8(vecsv)) |
7758 | is_utf = TRUE; | |
7759 | } | |
7760 | if (args) { | |
7761 | vecsv = va_arg(*args, SV*); | |
7762 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
b2e23cf9 | 7763 | vec_utf = DO_UTF8(vecsv); |
eb3fce90 | 7764 | } |
211dfcf1 HS |
7765 | else if (efix ? efix <= svmax : svix < svmax) { |
7766 | vecsv = svargs[efix ? efix-1 : svix++]; | |
7767 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
b2e23cf9 | 7768 | vec_utf = DO_UTF8(vecsv); |
211dfcf1 HS |
7769 | } |
7770 | else { | |
7771 | vecstr = (U8*)""; | |
7772 | veclen = 0; | |
7773 | } | |
eb3fce90 | 7774 | } |
fc36a67e | 7775 | |
eb3fce90 | 7776 | if (asterisk) { |
fc36a67e | 7777 | if (args) |
7778 | i = va_arg(*args, int); | |
7779 | else | |
eb3fce90 JH |
7780 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
7781 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7782 | left |= (i < 0); |
7783 | width = (i < 0) ? -i : i; | |
fc36a67e | 7784 | } |
211dfcf1 | 7785 | gotwidth: |
fc36a67e | 7786 | |
7787 | /* PRECISION */ | |
46fc3d4c | 7788 | |
fc36a67e | 7789 | if (*q == '.') { |
7790 | q++; | |
7791 | if (*q == '*') { | |
211dfcf1 | 7792 | q++; |
497b47a8 | 7793 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') /* epix currently unused */ |
211dfcf1 | 7794 | goto unknown; |
46fc3d4c | 7795 | if (args) |
7796 | i = va_arg(*args, int); | |
7797 | else | |
eb3fce90 JH |
7798 | i = (ewix ? ewix <= svmax : svix < svmax) |
7799 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7800 | precis = (i < 0) ? 0 : i; |
fc36a67e | 7801 | } |
7802 | else { | |
7803 | precis = 0; | |
7804 | while (isDIGIT(*q)) | |
7805 | precis = precis * 10 + (*q++ - '0'); | |
7806 | } | |
7807 | has_precis = TRUE; | |
7808 | } | |
46fc3d4c | 7809 | |
fc36a67e | 7810 | /* SIZE */ |
46fc3d4c | 7811 | |
fc36a67e | 7812 | switch (*q) { |
e5c81feb | 7813 | #if defined(HAS_QUAD) || (defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)) |
6f9bb7fd | 7814 | case 'L': /* Ld */ |
e5c81feb JH |
7815 | /* FALL THROUGH */ |
7816 | #endif | |
7817 | #ifdef HAS_QUAD | |
6f9bb7fd GS |
7818 | case 'q': /* qd */ |
7819 | intsize = 'q'; | |
7820 | q++; | |
7821 | break; | |
7822 | #endif | |
fc36a67e | 7823 | case 'l': |
e5c81feb JH |
7824 | #if defined(HAS_QUAD) || (defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)) |
7825 | if (*(q + 1) == 'l') { /* lld, llf */ | |
fc36a67e | 7826 | intsize = 'q'; |
7827 | q += 2; | |
46fc3d4c | 7828 | break; |
cf2093f6 | 7829 | } |
fc36a67e | 7830 | #endif |
6f9bb7fd | 7831 | /* FALL THROUGH */ |
fc36a67e | 7832 | case 'h': |
cf2093f6 | 7833 | /* FALL THROUGH */ |
fc36a67e | 7834 | case 'V': |
7835 | intsize = *q++; | |
46fc3d4c | 7836 | break; |
7837 | } | |
7838 | ||
fc36a67e | 7839 | /* CONVERSION */ |
7840 | ||
211dfcf1 HS |
7841 | if (*q == '%') { |
7842 | eptr = q++; | |
7843 | elen = 1; | |
7844 | goto string; | |
7845 | } | |
7846 | ||
7847 | if (!args) | |
7848 | argsv = (efix ? efix <= svmax : svix < svmax) ? | |
7849 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
7850 | ||
46fc3d4c | 7851 | switch (c = *q++) { |
7852 | ||
7853 | /* STRINGS */ | |
7854 | ||
46fc3d4c | 7855 | case 'c': |
211dfcf1 | 7856 | uv = args ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
7857 | if ((uv > 255 || |
7858 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 7859 | && !IN_BYTES) { |
dfe13c55 | 7860 | eptr = (char*)utf8buf; |
9041c2e3 | 7861 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
7e2040f0 GS |
7862 | is_utf = TRUE; |
7863 | } | |
7864 | else { | |
7865 | c = (char)uv; | |
7866 | eptr = &c; | |
7867 | elen = 1; | |
a0ed51b3 | 7868 | } |
46fc3d4c | 7869 | goto string; |
7870 | ||
46fc3d4c | 7871 | case 's': |
7872 | if (args) { | |
fc36a67e | 7873 | eptr = va_arg(*args, char*); |
c635e13b | 7874 | if (eptr) |
1d7c1841 GS |
7875 | #ifdef MACOS_TRADITIONAL |
7876 | /* On MacOS, %#s format is used for Pascal strings */ | |
7877 | if (alt) | |
7878 | elen = *eptr++; | |
7879 | else | |
7880 | #endif | |
c635e13b | 7881 | elen = strlen(eptr); |
7882 | else { | |
7883 | eptr = nullstr; | |
7884 | elen = sizeof nullstr - 1; | |
7885 | } | |
46fc3d4c | 7886 | } |
211dfcf1 | 7887 | else { |
7e2040f0 GS |
7888 | eptr = SvPVx(argsv, elen); |
7889 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
7890 | if (has_precis && precis < elen) { |
7891 | I32 p = precis; | |
7e2040f0 | 7892 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
7893 | precis = p; |
7894 | } | |
7895 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 7896 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 7897 | } |
7e2040f0 | 7898 | is_utf = TRUE; |
a0ed51b3 LW |
7899 | } |
7900 | } | |
46fc3d4c | 7901 | goto string; |
7902 | ||
fc36a67e | 7903 | case '_': |
7904 | /* | |
7905 | * The "%_" hack might have to be changed someday, | |
7906 | * if ISO or ANSI decide to use '_' for something. | |
7907 | * So we keep it hidden from users' code. | |
7908 | */ | |
7909 | if (!args) | |
7910 | goto unknown; | |
211dfcf1 | 7911 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
7912 | eptr = SvPVx(argsv, elen); |
7913 | if (DO_UTF8(argsv)) | |
7914 | is_utf = TRUE; | |
fc36a67e | 7915 | |
46fc3d4c | 7916 | string: |
b22c7a20 | 7917 | vectorize = FALSE; |
46fc3d4c | 7918 | if (has_precis && elen > precis) |
7919 | elen = precis; | |
7920 | break; | |
7921 | ||
7922 | /* INTEGERS */ | |
7923 | ||
fc36a67e | 7924 | case 'p': |
c2e66d9e GS |
7925 | if (alt) |
7926 | goto unknown; | |
211dfcf1 | 7927 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 7928 | base = 16; |
7929 | goto integer; | |
7930 | ||
46fc3d4c | 7931 | case 'D': |
29fe7a80 | 7932 | #ifdef IV_IS_QUAD |
22f3ae8c | 7933 | intsize = 'q'; |
29fe7a80 | 7934 | #else |
46fc3d4c | 7935 | intsize = 'l'; |
29fe7a80 | 7936 | #endif |
46fc3d4c | 7937 | /* FALL THROUGH */ |
7938 | case 'd': | |
7939 | case 'i': | |
b22c7a20 | 7940 | if (vectorize) { |
ba210ebe | 7941 | STRLEN ulen; |
211dfcf1 HS |
7942 | if (!veclen) |
7943 | continue; | |
b2e23cf9 | 7944 | if (vec_utf) |
9041c2e3 | 7945 | iv = (IV)utf8n_to_uvchr(vecstr, veclen, &ulen, 0); |
b22c7a20 | 7946 | else { |
a05b299f | 7947 | iv = *vecstr; |
b22c7a20 GS |
7948 | ulen = 1; |
7949 | } | |
7950 | vecstr += ulen; | |
7951 | veclen -= ulen; | |
7952 | } | |
7953 | else if (args) { | |
46fc3d4c | 7954 | switch (intsize) { |
7955 | case 'h': iv = (short)va_arg(*args, int); break; | |
7956 | default: iv = va_arg(*args, int); break; | |
7957 | case 'l': iv = va_arg(*args, long); break; | |
fc36a67e | 7958 | case 'V': iv = va_arg(*args, IV); break; |
cf2093f6 JH |
7959 | #ifdef HAS_QUAD |
7960 | case 'q': iv = va_arg(*args, Quad_t); break; | |
7961 | #endif | |
46fc3d4c | 7962 | } |
7963 | } | |
7964 | else { | |
211dfcf1 | 7965 | iv = SvIVx(argsv); |
46fc3d4c | 7966 | switch (intsize) { |
7967 | case 'h': iv = (short)iv; break; | |
be28567c | 7968 | default: break; |
46fc3d4c | 7969 | case 'l': iv = (long)iv; break; |
fc36a67e | 7970 | case 'V': break; |
cf2093f6 JH |
7971 | #ifdef HAS_QUAD |
7972 | case 'q': iv = (Quad_t)iv; break; | |
7973 | #endif | |
46fc3d4c | 7974 | } |
7975 | } | |
7976 | if (iv >= 0) { | |
7977 | uv = iv; | |
7978 | if (plus) | |
7979 | esignbuf[esignlen++] = plus; | |
7980 | } | |
7981 | else { | |
7982 | uv = -iv; | |
7983 | esignbuf[esignlen++] = '-'; | |
7984 | } | |
7985 | base = 10; | |
7986 | goto integer; | |
7987 | ||
fc36a67e | 7988 | case 'U': |
29fe7a80 | 7989 | #ifdef IV_IS_QUAD |
22f3ae8c | 7990 | intsize = 'q'; |
29fe7a80 | 7991 | #else |
fc36a67e | 7992 | intsize = 'l'; |
29fe7a80 | 7993 | #endif |
fc36a67e | 7994 | /* FALL THROUGH */ |
7995 | case 'u': | |
7996 | base = 10; | |
7997 | goto uns_integer; | |
7998 | ||
4f19785b WSI |
7999 | case 'b': |
8000 | base = 2; | |
8001 | goto uns_integer; | |
8002 | ||
46fc3d4c | 8003 | case 'O': |
29fe7a80 | 8004 | #ifdef IV_IS_QUAD |
22f3ae8c | 8005 | intsize = 'q'; |
29fe7a80 | 8006 | #else |
46fc3d4c | 8007 | intsize = 'l'; |
29fe7a80 | 8008 | #endif |
46fc3d4c | 8009 | /* FALL THROUGH */ |
8010 | case 'o': | |
8011 | base = 8; | |
8012 | goto uns_integer; | |
8013 | ||
8014 | case 'X': | |
46fc3d4c | 8015 | case 'x': |
8016 | base = 16; | |
46fc3d4c | 8017 | |
8018 | uns_integer: | |
b22c7a20 | 8019 | if (vectorize) { |
ba210ebe | 8020 | STRLEN ulen; |
b22c7a20 | 8021 | vector: |
211dfcf1 HS |
8022 | if (!veclen) |
8023 | continue; | |
b2e23cf9 | 8024 | if (vec_utf) |
9041c2e3 | 8025 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, 0); |
b22c7a20 | 8026 | else { |
a05b299f | 8027 | uv = *vecstr; |
b22c7a20 GS |
8028 | ulen = 1; |
8029 | } | |
8030 | vecstr += ulen; | |
8031 | veclen -= ulen; | |
8032 | } | |
8033 | else if (args) { | |
46fc3d4c | 8034 | switch (intsize) { |
8035 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
8036 | default: uv = va_arg(*args, unsigned); break; | |
8037 | case 'l': uv = va_arg(*args, unsigned long); break; | |
fc36a67e | 8038 | case 'V': uv = va_arg(*args, UV); break; |
cf2093f6 JH |
8039 | #ifdef HAS_QUAD |
8040 | case 'q': uv = va_arg(*args, Quad_t); break; | |
8041 | #endif | |
46fc3d4c | 8042 | } |
8043 | } | |
8044 | else { | |
211dfcf1 | 8045 | uv = SvUVx(argsv); |
46fc3d4c | 8046 | switch (intsize) { |
8047 | case 'h': uv = (unsigned short)uv; break; | |
be28567c | 8048 | default: break; |
46fc3d4c | 8049 | case 'l': uv = (unsigned long)uv; break; |
fc36a67e | 8050 | case 'V': break; |
cf2093f6 JH |
8051 | #ifdef HAS_QUAD |
8052 | case 'q': uv = (Quad_t)uv; break; | |
8053 | #endif | |
46fc3d4c | 8054 | } |
8055 | } | |
8056 | ||
8057 | integer: | |
46fc3d4c | 8058 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 8059 | switch (base) { |
8060 | unsigned dig; | |
8061 | case 16: | |
c10ed8b9 HS |
8062 | if (!uv) |
8063 | alt = FALSE; | |
1d7c1841 GS |
8064 | p = (char*)((c == 'X') |
8065 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 8066 | do { |
8067 | dig = uv & 15; | |
8068 | *--eptr = p[dig]; | |
8069 | } while (uv >>= 4); | |
8070 | if (alt) { | |
46fc3d4c | 8071 | esignbuf[esignlen++] = '0'; |
fc36a67e | 8072 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 8073 | } |
fc36a67e | 8074 | break; |
8075 | case 8: | |
8076 | do { | |
8077 | dig = uv & 7; | |
8078 | *--eptr = '0' + dig; | |
8079 | } while (uv >>= 3); | |
8080 | if (alt && *eptr != '0') | |
8081 | *--eptr = '0'; | |
8082 | break; | |
4f19785b WSI |
8083 | case 2: |
8084 | do { | |
8085 | dig = uv & 1; | |
8086 | *--eptr = '0' + dig; | |
8087 | } while (uv >>= 1); | |
eda88b6d JH |
8088 | if (alt) { |
8089 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 8090 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 8091 | } |
4f19785b | 8092 | break; |
fc36a67e | 8093 | default: /* it had better be ten or less */ |
6bc102ca | 8094 | #if defined(PERL_Y2KWARN) |
e476b1b5 | 8095 | if (ckWARN(WARN_Y2K)) { |
6bc102ca GS |
8096 | STRLEN n; |
8097 | char *s = SvPV(sv,n); | |
8098 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
8099 | && (n == 2 || !isDIGIT(s[n-3]))) | |
8100 | { | |
e476b1b5 | 8101 | Perl_warner(aTHX_ WARN_Y2K, |
6bc102ca GS |
8102 | "Possible Y2K bug: %%%c %s", |
8103 | c, "format string following '19'"); | |
8104 | } | |
8105 | } | |
8106 | #endif | |
fc36a67e | 8107 | do { |
8108 | dig = uv % base; | |
8109 | *--eptr = '0' + dig; | |
8110 | } while (uv /= base); | |
8111 | break; | |
46fc3d4c | 8112 | } |
8113 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
8114 | if (has_precis) { |
8115 | if (precis > elen) | |
8116 | zeros = precis - elen; | |
8117 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
8118 | elen = 0; | |
8119 | } | |
46fc3d4c | 8120 | break; |
8121 | ||
8122 | /* FLOATING POINT */ | |
8123 | ||
fc36a67e | 8124 | case 'F': |
8125 | c = 'f'; /* maybe %F isn't supported here */ | |
8126 | /* FALL THROUGH */ | |
46fc3d4c | 8127 | case 'e': case 'E': |
fc36a67e | 8128 | case 'f': |
46fc3d4c | 8129 | case 'g': case 'G': |
8130 | ||
8131 | /* This is evil, but floating point is even more evil */ | |
8132 | ||
b22c7a20 | 8133 | vectorize = FALSE; |
211dfcf1 | 8134 | nv = args ? va_arg(*args, NV) : SvNVx(argsv); |
fc36a67e | 8135 | |
8136 | need = 0; | |
8137 | if (c != 'e' && c != 'E') { | |
8138 | i = PERL_INT_MIN; | |
73b309ea | 8139 | (void)Perl_frexp(nv, &i); |
fc36a67e | 8140 | if (i == PERL_INT_MIN) |
cea2e8a9 | 8141 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 8142 | if (i > 0) |
fc36a67e | 8143 | need = BIT_DIGITS(i); |
8144 | } | |
8145 | need += has_precis ? precis : 6; /* known default */ | |
8146 | if (need < width) | |
8147 | need = width; | |
8148 | ||
46fc3d4c | 8149 | need += 20; /* fudge factor */ |
80252599 GS |
8150 | if (PL_efloatsize < need) { |
8151 | Safefree(PL_efloatbuf); | |
8152 | PL_efloatsize = need + 20; /* more fudge */ | |
8153 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 8154 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 8155 | } |
8156 | ||
8157 | eptr = ebuf + sizeof ebuf; | |
8158 | *--eptr = '\0'; | |
8159 | *--eptr = c; | |
e5c81feb | 8160 | #if defined(USE_LONG_DOUBLE) && defined(PERL_PRIfldbl) |
cf2093f6 | 8161 | { |
e5c81feb JH |
8162 | /* Copy the one or more characters in a long double |
8163 | * format before the 'base' ([efgEFG]) character to | |
8164 | * the format string. */ | |
8165 | static char const prifldbl[] = PERL_PRIfldbl; | |
8166 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
8167 | while (p >= prifldbl) { *--eptr = *p--; } | |
cf2093f6 | 8168 | } |
65202027 | 8169 | #endif |
46fc3d4c | 8170 | if (has_precis) { |
8171 | base = precis; | |
8172 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8173 | *--eptr = '.'; | |
8174 | } | |
8175 | if (width) { | |
8176 | base = width; | |
8177 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8178 | } | |
8179 | if (fill == '0') | |
8180 | *--eptr = fill; | |
84902520 TB |
8181 | if (left) |
8182 | *--eptr = '-'; | |
46fc3d4c | 8183 | if (plus) |
8184 | *--eptr = plus; | |
8185 | if (alt) | |
8186 | *--eptr = '#'; | |
8187 | *--eptr = '%'; | |
8188 | ||
ff9121f8 JH |
8189 | /* No taint. Otherwise we are in the strange situation |
8190 | * where printf() taints but print($float) doesn't. | |
bda0f7a5 | 8191 | * --jhi */ |
dd8482fc | 8192 | (void)sprintf(PL_efloatbuf, eptr, nv); |
8af02333 | 8193 | |
80252599 GS |
8194 | eptr = PL_efloatbuf; |
8195 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 8196 | break; |
8197 | ||
fc36a67e | 8198 | /* SPECIAL */ |
8199 | ||
8200 | case 'n': | |
b22c7a20 | 8201 | vectorize = FALSE; |
fc36a67e | 8202 | i = SvCUR(sv) - origlen; |
8203 | if (args) { | |
c635e13b | 8204 | switch (intsize) { |
8205 | case 'h': *(va_arg(*args, short*)) = i; break; | |
8206 | default: *(va_arg(*args, int*)) = i; break; | |
8207 | case 'l': *(va_arg(*args, long*)) = i; break; | |
8208 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
8209 | #ifdef HAS_QUAD |
8210 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
8211 | #endif | |
c635e13b | 8212 | } |
fc36a67e | 8213 | } |
9dd79c3f | 8214 | else |
211dfcf1 | 8215 | sv_setuv_mg(argsv, (UV)i); |
fc36a67e | 8216 | continue; /* not "break" */ |
8217 | ||
8218 | /* UNKNOWN */ | |
8219 | ||
46fc3d4c | 8220 | default: |
fc36a67e | 8221 | unknown: |
b22c7a20 | 8222 | vectorize = FALSE; |
599cee73 | 8223 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 8224 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 8225 | SV *msg = sv_newmortal(); |
cea2e8a9 | 8226 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ", |
533c011a | 8227 | (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); |
0f4b6630 | 8228 | if (c) { |
0f4b6630 | 8229 | if (isPRINT(c)) |
1c846c1f | 8230 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
8231 | "\"%%%c\"", c & 0xFF); |
8232 | else | |
8233 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 8234 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 8235 | (UV)c & 0xFF); |
0f4b6630 | 8236 | } else |
c635e13b | 8237 | sv_catpv(msg, "end of string"); |
894356b3 | 8238 | Perl_warner(aTHX_ WARN_PRINTF, "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 8239 | } |
fb73857a | 8240 | |
8241 | /* output mangled stuff ... */ | |
8242 | if (c == '\0') | |
8243 | --q; | |
46fc3d4c | 8244 | eptr = p; |
8245 | elen = q - p; | |
fb73857a | 8246 | |
8247 | /* ... right here, because formatting flags should not apply */ | |
8248 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8249 | p = SvEND(sv); | |
4459522c | 8250 | Copy(eptr, p, elen, char); |
fb73857a | 8251 | p += elen; |
8252 | *p = '\0'; | |
8253 | SvCUR(sv) = p - SvPVX(sv); | |
8254 | continue; /* not "break" */ | |
46fc3d4c | 8255 | } |
8256 | ||
fc36a67e | 8257 | have = esignlen + zeros + elen; |
46fc3d4c | 8258 | need = (have > width ? have : width); |
8259 | gap = need - have; | |
8260 | ||
b22c7a20 | 8261 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 8262 | p = SvEND(sv); |
8263 | if (esignlen && fill == '0') { | |
8264 | for (i = 0; i < esignlen; i++) | |
8265 | *p++ = esignbuf[i]; | |
8266 | } | |
8267 | if (gap && !left) { | |
8268 | memset(p, fill, gap); | |
8269 | p += gap; | |
8270 | } | |
8271 | if (esignlen && fill != '0') { | |
8272 | for (i = 0; i < esignlen; i++) | |
8273 | *p++ = esignbuf[i]; | |
8274 | } | |
fc36a67e | 8275 | if (zeros) { |
8276 | for (i = zeros; i; i--) | |
8277 | *p++ = '0'; | |
8278 | } | |
46fc3d4c | 8279 | if (elen) { |
4459522c | 8280 | Copy(eptr, p, elen, char); |
46fc3d4c | 8281 | p += elen; |
8282 | } | |
8283 | if (gap && left) { | |
8284 | memset(p, ' ', gap); | |
8285 | p += gap; | |
8286 | } | |
b22c7a20 GS |
8287 | if (vectorize) { |
8288 | if (veclen) { | |
4459522c | 8289 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
8290 | p += dotstrlen; |
8291 | } | |
8292 | else | |
8293 | vectorize = FALSE; /* done iterating over vecstr */ | |
8294 | } | |
7e2040f0 GS |
8295 | if (is_utf) |
8296 | SvUTF8_on(sv); | |
46fc3d4c | 8297 | *p = '\0'; |
8298 | SvCUR(sv) = p - SvPVX(sv); | |
b22c7a20 GS |
8299 | if (vectorize) { |
8300 | esignlen = 0; | |
8301 | goto vector; | |
8302 | } | |
46fc3d4c | 8303 | } |
8304 | } | |
51371543 | 8305 | |
645c22ef DM |
8306 | /* ========================================================================= |
8307 | ||
8308 | =head1 Cloning an interpreter | |
8309 | ||
8310 | All the macros and functions in this section are for the private use of | |
8311 | the main function, perl_clone(). | |
8312 | ||
8313 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
8314 | During the course of a cloning, a hash table is used to map old addresses | |
8315 | to new addresses. The table is created and manipulated with the | |
8316 | ptr_table_* functions. | |
8317 | ||
8318 | =cut | |
8319 | ||
8320 | ============================================================================*/ | |
8321 | ||
8322 | ||
1d7c1841 GS |
8323 | #if defined(USE_ITHREADS) |
8324 | ||
4d1ff10f AB |
8325 | #if defined(USE_5005THREADS) |
8326 | # include "error: USE_5005THREADS and USE_ITHREADS are incompatible" | |
1d7c1841 GS |
8327 | #endif |
8328 | ||
1d7c1841 GS |
8329 | #ifndef GpREFCNT_inc |
8330 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
8331 | #endif | |
8332 | ||
8333 | ||
d2d73c3e AB |
8334 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
8335 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
8336 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8337 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
8338 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8339 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
8340 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8341 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
8342 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8343 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
8344 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
8345 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
8346 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
d2d73c3e AB |
8347 | |
8348 | ||
d2f185dc AMS |
8349 | /* Duplicate a regexp. Required reading: pregcomp() and pregfree() in |
8350 | regcomp.c. AMS 20010712 */ | |
645c22ef | 8351 | |
1d7c1841 | 8352 | REGEXP * |
d2f185dc | 8353 | Perl_re_dup(pTHX_ REGEXP *r, clone_params *param) |
1d7c1841 | 8354 | { |
d2f185dc AMS |
8355 | REGEXP *ret; |
8356 | int i, len, npar; | |
8357 | struct reg_substr_datum *s; | |
8358 | ||
8359 | if (!r) | |
8360 | return (REGEXP *)NULL; | |
8361 | ||
8362 | if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) | |
8363 | return ret; | |
8364 | ||
8365 | len = r->offsets[0]; | |
8366 | npar = r->nparens+1; | |
8367 | ||
8368 | Newc(0, ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); | |
8369 | Copy(r->program, ret->program, len+1, regnode); | |
8370 | ||
8371 | New(0, ret->startp, npar, I32); | |
8372 | Copy(r->startp, ret->startp, npar, I32); | |
8373 | New(0, ret->endp, npar, I32); | |
8374 | Copy(r->startp, ret->startp, npar, I32); | |
8375 | ||
d2f185dc AMS |
8376 | New(0, ret->substrs, 1, struct reg_substr_data); |
8377 | for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { | |
8378 | s->min_offset = r->substrs->data[i].min_offset; | |
8379 | s->max_offset = r->substrs->data[i].max_offset; | |
8380 | s->substr = sv_dup_inc(r->substrs->data[i].substr, param); | |
8381 | } | |
8382 | ||
70612e96 | 8383 | ret->regstclass = NULL; |
d2f185dc AMS |
8384 | if (r->data) { |
8385 | struct reg_data *d; | |
8386 | int count = r->data->count; | |
8387 | ||
8388 | Newc(0, d, sizeof(struct reg_data) + count*sizeof(void *), | |
8389 | char, struct reg_data); | |
8390 | New(0, d->what, count, U8); | |
8391 | ||
8392 | d->count = count; | |
8393 | for (i = 0; i < count; i++) { | |
8394 | d->what[i] = r->data->what[i]; | |
8395 | switch (d->what[i]) { | |
8396 | case 's': | |
8397 | d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); | |
8398 | break; | |
8399 | case 'p': | |
8400 | d->data[i] = av_dup_inc((AV *)r->data->data[i], param); | |
8401 | break; | |
8402 | case 'f': | |
8403 | /* This is cheating. */ | |
8404 | New(0, d->data[i], 1, struct regnode_charclass_class); | |
8405 | StructCopy(r->data->data[i], d->data[i], | |
8406 | struct regnode_charclass_class); | |
70612e96 | 8407 | ret->regstclass = (regnode*)d->data[i]; |
d2f185dc AMS |
8408 | break; |
8409 | case 'o': | |
33773810 AMS |
8410 | /* Compiled op trees are readonly, and can thus be |
8411 | shared without duplication. */ | |
9b978d73 DM |
8412 | d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); |
8413 | break; | |
d2f185dc AMS |
8414 | case 'n': |
8415 | d->data[i] = r->data->data[i]; | |
8416 | break; | |
8417 | } | |
8418 | } | |
8419 | ||
8420 | ret->data = d; | |
8421 | } | |
8422 | else | |
8423 | ret->data = NULL; | |
8424 | ||
8425 | New(0, ret->offsets, 2*len+1, U32); | |
8426 | Copy(r->offsets, ret->offsets, 2*len+1, U32); | |
8427 | ||
8428 | ret->precomp = SAVEPV(r->precomp); | |
d2f185dc AMS |
8429 | ret->refcnt = r->refcnt; |
8430 | ret->minlen = r->minlen; | |
8431 | ret->prelen = r->prelen; | |
8432 | ret->nparens = r->nparens; | |
8433 | ret->lastparen = r->lastparen; | |
8434 | ret->lastcloseparen = r->lastcloseparen; | |
8435 | ret->reganch = r->reganch; | |
8436 | ||
70612e96 RG |
8437 | ret->sublen = r->sublen; |
8438 | ||
8439 | if (RX_MATCH_COPIED(ret)) | |
8440 | ret->subbeg = SAVEPV(r->subbeg); | |
8441 | else | |
8442 | ret->subbeg = Nullch; | |
8443 | ||
d2f185dc AMS |
8444 | ptr_table_store(PL_ptr_table, r, ret); |
8445 | return ret; | |
1d7c1841 GS |
8446 | } |
8447 | ||
d2d73c3e | 8448 | /* duplicate a file handle */ |
645c22ef | 8449 | |
1d7c1841 GS |
8450 | PerlIO * |
8451 | Perl_fp_dup(pTHX_ PerlIO *fp, char type) | |
8452 | { | |
8453 | PerlIO *ret; | |
8454 | if (!fp) | |
8455 | return (PerlIO*)NULL; | |
8456 | ||
8457 | /* look for it in the table first */ | |
8458 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
8459 | if (ret) | |
8460 | return ret; | |
8461 | ||
8462 | /* create anew and remember what it is */ | |
5f1a76d0 | 8463 | ret = PerlIO_fdupopen(aTHX_ fp); |
1d7c1841 GS |
8464 | ptr_table_store(PL_ptr_table, fp, ret); |
8465 | return ret; | |
8466 | } | |
8467 | ||
645c22ef DM |
8468 | /* duplicate a directory handle */ |
8469 | ||
1d7c1841 GS |
8470 | DIR * |
8471 | Perl_dirp_dup(pTHX_ DIR *dp) | |
8472 | { | |
8473 | if (!dp) | |
8474 | return (DIR*)NULL; | |
8475 | /* XXX TODO */ | |
8476 | return dp; | |
8477 | } | |
8478 | ||
ff276b08 | 8479 | /* duplicate a typeglob */ |
645c22ef | 8480 | |
1d7c1841 | 8481 | GP * |
d2d73c3e | 8482 | Perl_gp_dup(pTHX_ GP *gp, clone_params* param) |
1d7c1841 GS |
8483 | { |
8484 | GP *ret; | |
8485 | if (!gp) | |
8486 | return (GP*)NULL; | |
8487 | /* look for it in the table first */ | |
8488 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
8489 | if (ret) | |
8490 | return ret; | |
8491 | ||
8492 | /* create anew and remember what it is */ | |
8493 | Newz(0, ret, 1, GP); | |
8494 | ptr_table_store(PL_ptr_table, gp, ret); | |
8495 | ||
8496 | /* clone */ | |
8497 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
8498 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
8499 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
8500 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
8501 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
8502 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
8503 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
8504 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
8505 | ret->gp_cvgen = gp->gp_cvgen; |
8506 | ret->gp_flags = gp->gp_flags; | |
8507 | ret->gp_line = gp->gp_line; | |
8508 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
8509 | return ret; | |
8510 | } | |
8511 | ||
645c22ef DM |
8512 | /* duplicate a chain of magic */ |
8513 | ||
1d7c1841 | 8514 | MAGIC * |
d2d73c3e | 8515 | Perl_mg_dup(pTHX_ MAGIC *mg, clone_params* param) |
1d7c1841 | 8516 | { |
cb359b41 JH |
8517 | MAGIC *mgprev = (MAGIC*)NULL; |
8518 | MAGIC *mgret; | |
1d7c1841 GS |
8519 | if (!mg) |
8520 | return (MAGIC*)NULL; | |
8521 | /* look for it in the table first */ | |
8522 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
8523 | if (mgret) | |
8524 | return mgret; | |
8525 | ||
8526 | for (; mg; mg = mg->mg_moremagic) { | |
8527 | MAGIC *nmg; | |
8528 | Newz(0, nmg, 1, MAGIC); | |
cb359b41 | 8529 | if (mgprev) |
1d7c1841 | 8530 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
8531 | else |
8532 | mgret = nmg; | |
1d7c1841 GS |
8533 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
8534 | nmg->mg_private = mg->mg_private; | |
8535 | nmg->mg_type = mg->mg_type; | |
8536 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 8537 | if (mg->mg_type == PERL_MAGIC_qr) { |
d2f185dc | 8538 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj, param); |
1d7c1841 | 8539 | } |
05bd4103 JH |
8540 | else if(mg->mg_type == PERL_MAGIC_backref) { |
8541 | AV *av = (AV*) mg->mg_obj; | |
8542 | SV **svp; | |
8543 | I32 i; | |
8544 | nmg->mg_obj = (SV*)newAV(); | |
8545 | svp = AvARRAY(av); | |
8546 | i = AvFILLp(av); | |
8547 | while (i >= 0) { | |
8548 | av_push((AV*)nmg->mg_obj,sv_dup(svp[i],param)); | |
8549 | i--; | |
8550 | } | |
8551 | } | |
1d7c1841 GS |
8552 | else { |
8553 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
8554 | ? sv_dup_inc(mg->mg_obj, param) |
8555 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
8556 | } |
8557 | nmg->mg_len = mg->mg_len; | |
8558 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 8559 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
1d7c1841 GS |
8560 | if (mg->mg_len >= 0) { |
8561 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); | |
14befaf4 DM |
8562 | if (mg->mg_type == PERL_MAGIC_overload_table && |
8563 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
8564 | { | |
1d7c1841 GS |
8565 | AMT *amtp = (AMT*)mg->mg_ptr; |
8566 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
8567 | I32 i; | |
8568 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 8569 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
8570 | } |
8571 | } | |
8572 | } | |
8573 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 8574 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 GS |
8575 | } |
8576 | mgprev = nmg; | |
8577 | } | |
8578 | return mgret; | |
8579 | } | |
8580 | ||
645c22ef DM |
8581 | /* create a new pointer-mapping table */ |
8582 | ||
1d7c1841 GS |
8583 | PTR_TBL_t * |
8584 | Perl_ptr_table_new(pTHX) | |
8585 | { | |
8586 | PTR_TBL_t *tbl; | |
8587 | Newz(0, tbl, 1, PTR_TBL_t); | |
8588 | tbl->tbl_max = 511; | |
8589 | tbl->tbl_items = 0; | |
8590 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
8591 | return tbl; | |
8592 | } | |
8593 | ||
645c22ef DM |
8594 | /* map an existing pointer using a table */ |
8595 | ||
1d7c1841 GS |
8596 | void * |
8597 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
8598 | { | |
8599 | PTR_TBL_ENT_t *tblent; | |
d2a79402 | 8600 | UV hash = PTR2UV(sv); |
1d7c1841 GS |
8601 | assert(tbl); |
8602 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
8603 | for (; tblent; tblent = tblent->next) { | |
8604 | if (tblent->oldval == sv) | |
8605 | return tblent->newval; | |
8606 | } | |
8607 | return (void*)NULL; | |
8608 | } | |
8609 | ||
645c22ef DM |
8610 | /* add a new entry to a pointer-mapping table */ |
8611 | ||
1d7c1841 GS |
8612 | void |
8613 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
8614 | { | |
8615 | PTR_TBL_ENT_t *tblent, **otblent; | |
8616 | /* XXX this may be pessimal on platforms where pointers aren't good | |
8617 | * hash values e.g. if they grow faster in the most significant | |
8618 | * bits */ | |
d2a79402 | 8619 | UV hash = PTR2UV(oldv); |
1d7c1841 GS |
8620 | bool i = 1; |
8621 | ||
8622 | assert(tbl); | |
8623 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
8624 | for (tblent = *otblent; tblent; i=0, tblent = tblent->next) { | |
8625 | if (tblent->oldval == oldv) { | |
8626 | tblent->newval = newv; | |
8627 | tbl->tbl_items++; | |
8628 | return; | |
8629 | } | |
8630 | } | |
8631 | Newz(0, tblent, 1, PTR_TBL_ENT_t); | |
8632 | tblent->oldval = oldv; | |
8633 | tblent->newval = newv; | |
8634 | tblent->next = *otblent; | |
8635 | *otblent = tblent; | |
8636 | tbl->tbl_items++; | |
8637 | if (i && tbl->tbl_items > tbl->tbl_max) | |
8638 | ptr_table_split(tbl); | |
8639 | } | |
8640 | ||
645c22ef DM |
8641 | /* double the hash bucket size of an existing ptr table */ |
8642 | ||
1d7c1841 GS |
8643 | void |
8644 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
8645 | { | |
8646 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
8647 | UV oldsize = tbl->tbl_max + 1; | |
8648 | UV newsize = oldsize * 2; | |
8649 | UV i; | |
8650 | ||
8651 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
8652 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
8653 | tbl->tbl_max = --newsize; | |
8654 | tbl->tbl_ary = ary; | |
8655 | for (i=0; i < oldsize; i++, ary++) { | |
8656 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
8657 | if (!*ary) | |
8658 | continue; | |
8659 | curentp = ary + oldsize; | |
8660 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
d2a79402 | 8661 | if ((newsize & PTR2UV(ent->oldval)) != i) { |
1d7c1841 GS |
8662 | *entp = ent->next; |
8663 | ent->next = *curentp; | |
8664 | *curentp = ent; | |
8665 | continue; | |
8666 | } | |
8667 | else | |
8668 | entp = &ent->next; | |
8669 | } | |
8670 | } | |
8671 | } | |
8672 | ||
645c22ef DM |
8673 | /* remove all the entries from a ptr table */ |
8674 | ||
a0739874 DM |
8675 | void |
8676 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
8677 | { | |
8678 | register PTR_TBL_ENT_t **array; | |
8679 | register PTR_TBL_ENT_t *entry; | |
8680 | register PTR_TBL_ENT_t *oentry = Null(PTR_TBL_ENT_t*); | |
8681 | UV riter = 0; | |
8682 | UV max; | |
8683 | ||
8684 | if (!tbl || !tbl->tbl_items) { | |
8685 | return; | |
8686 | } | |
8687 | ||
8688 | array = tbl->tbl_ary; | |
8689 | entry = array[0]; | |
8690 | max = tbl->tbl_max; | |
8691 | ||
8692 | for (;;) { | |
8693 | if (entry) { | |
8694 | oentry = entry; | |
8695 | entry = entry->next; | |
8696 | Safefree(oentry); | |
8697 | } | |
8698 | if (!entry) { | |
8699 | if (++riter > max) { | |
8700 | break; | |
8701 | } | |
8702 | entry = array[riter]; | |
8703 | } | |
8704 | } | |
8705 | ||
8706 | tbl->tbl_items = 0; | |
8707 | } | |
8708 | ||
645c22ef DM |
8709 | /* clear and free a ptr table */ |
8710 | ||
a0739874 DM |
8711 | void |
8712 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
8713 | { | |
8714 | if (!tbl) { | |
8715 | return; | |
8716 | } | |
8717 | ptr_table_clear(tbl); | |
8718 | Safefree(tbl->tbl_ary); | |
8719 | Safefree(tbl); | |
8720 | } | |
8721 | ||
1d7c1841 GS |
8722 | #ifdef DEBUGGING |
8723 | char *PL_watch_pvx; | |
8724 | #endif | |
8725 | ||
645c22ef DM |
8726 | /* attempt to make everything in the typeglob readonly */ |
8727 | ||
5bd07a3d DM |
8728 | STATIC SV * |
8729 | S_gv_share(pTHX_ SV *sstr) | |
8730 | { | |
8731 | GV *gv = (GV*)sstr; | |
8732 | SV *sv = &PL_sv_no; /* just need SvREADONLY-ness */ | |
8733 | ||
8734 | if (GvIO(gv) || GvFORM(gv)) { | |
7fb37951 | 8735 | GvUNIQUE_off(gv); /* GvIOs cannot be shared. nor can GvFORMs */ |
5bd07a3d DM |
8736 | } |
8737 | else if (!GvCV(gv)) { | |
8738 | GvCV(gv) = (CV*)sv; | |
8739 | } | |
8740 | else { | |
8741 | /* CvPADLISTs cannot be shared */ | |
8742 | if (!CvXSUB(GvCV(gv))) { | |
7fb37951 | 8743 | GvUNIQUE_off(gv); |
5bd07a3d DM |
8744 | } |
8745 | } | |
8746 | ||
7fb37951 | 8747 | if (!GvUNIQUE(gv)) { |
5bd07a3d DM |
8748 | #if 0 |
8749 | PerlIO_printf(Perl_debug_log, "gv_share: unable to share %s::%s\n", | |
8750 | HvNAME(GvSTASH(gv)), GvNAME(gv)); | |
8751 | #endif | |
8752 | return Nullsv; | |
8753 | } | |
8754 | ||
4411f3b6 | 8755 | /* |
5bd07a3d DM |
8756 | * write attempts will die with |
8757 | * "Modification of a read-only value attempted" | |
8758 | */ | |
8759 | if (!GvSV(gv)) { | |
8760 | GvSV(gv) = sv; | |
8761 | } | |
8762 | else { | |
8763 | SvREADONLY_on(GvSV(gv)); | |
8764 | } | |
8765 | ||
8766 | if (!GvAV(gv)) { | |
8767 | GvAV(gv) = (AV*)sv; | |
8768 | } | |
8769 | else { | |
8770 | SvREADONLY_on(GvAV(gv)); | |
8771 | } | |
8772 | ||
8773 | if (!GvHV(gv)) { | |
8774 | GvHV(gv) = (HV*)sv; | |
8775 | } | |
8776 | else { | |
8777 | SvREADONLY_on(GvAV(gv)); | |
8778 | } | |
8779 | ||
8780 | return sstr; /* he_dup() will SvREFCNT_inc() */ | |
8781 | } | |
8782 | ||
645c22ef DM |
8783 | /* duplicate an SV of any type (including AV, HV etc) */ |
8784 | ||
1d7c1841 | 8785 | SV * |
d2d73c3e | 8786 | Perl_sv_dup(pTHX_ SV *sstr, clone_params* param) |
1d7c1841 | 8787 | { |
1d7c1841 GS |
8788 | SV *dstr; |
8789 | ||
8790 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
8791 | return Nullsv; | |
8792 | /* look for it in the table first */ | |
8793 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
8794 | if (dstr) | |
8795 | return dstr; | |
8796 | ||
8797 | /* create anew and remember what it is */ | |
8798 | new_SV(dstr); | |
8799 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
8800 | ||
8801 | /* clone */ | |
8802 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
8803 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
8804 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
8805 | ||
8806 | #ifdef DEBUGGING | |
8807 | if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) | |
8808 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", | |
8809 | PL_watch_pvx, SvPVX(sstr)); | |
8810 | #endif | |
8811 | ||
8812 | switch (SvTYPE(sstr)) { | |
8813 | case SVt_NULL: | |
8814 | SvANY(dstr) = NULL; | |
8815 | break; | |
8816 | case SVt_IV: | |
8817 | SvANY(dstr) = new_XIV(); | |
8818 | SvIVX(dstr) = SvIVX(sstr); | |
8819 | break; | |
8820 | case SVt_NV: | |
8821 | SvANY(dstr) = new_XNV(); | |
8822 | SvNVX(dstr) = SvNVX(sstr); | |
8823 | break; | |
8824 | case SVt_RV: | |
8825 | SvANY(dstr) = new_XRV(); | |
5f68ba95 | 8826 | SvRV(dstr) = SvRV(sstr) && SvWEAKREF(sstr) |
d2d73c3e AB |
8827 | ? sv_dup(SvRV(sstr), param) |
8828 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8829 | break; |
8830 | case SVt_PV: | |
8831 | SvANY(dstr) = new_XPV(); | |
8832 | SvCUR(dstr) = SvCUR(sstr); | |
8833 | SvLEN(dstr) = SvLEN(sstr); | |
8834 | if (SvROK(sstr)) | |
5f68ba95 | 8835 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8836 | ? sv_dup(SvRV(sstr), param) |
8837 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8838 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8839 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8840 | else | |
8841 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8842 | break; | |
8843 | case SVt_PVIV: | |
8844 | SvANY(dstr) = new_XPVIV(); | |
8845 | SvCUR(dstr) = SvCUR(sstr); | |
8846 | SvLEN(dstr) = SvLEN(sstr); | |
8847 | SvIVX(dstr) = SvIVX(sstr); | |
8848 | if (SvROK(sstr)) | |
5f68ba95 | 8849 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8850 | ? sv_dup(SvRV(sstr), param) |
8851 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8852 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8853 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8854 | else | |
8855 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8856 | break; | |
8857 | case SVt_PVNV: | |
8858 | SvANY(dstr) = new_XPVNV(); | |
8859 | SvCUR(dstr) = SvCUR(sstr); | |
8860 | SvLEN(dstr) = SvLEN(sstr); | |
8861 | SvIVX(dstr) = SvIVX(sstr); | |
8862 | SvNVX(dstr) = SvNVX(sstr); | |
8863 | if (SvROK(sstr)) | |
5f68ba95 | 8864 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8865 | ? sv_dup(SvRV(sstr), param) |
8866 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8867 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8868 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8869 | else | |
8870 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8871 | break; | |
8872 | case SVt_PVMG: | |
8873 | SvANY(dstr) = new_XPVMG(); | |
8874 | SvCUR(dstr) = SvCUR(sstr); | |
8875 | SvLEN(dstr) = SvLEN(sstr); | |
8876 | SvIVX(dstr) = SvIVX(sstr); | |
8877 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8878 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8879 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8880 | if (SvROK(sstr)) |
5f68ba95 | 8881 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8882 | ? sv_dup(SvRV(sstr), param) |
8883 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8884 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8885 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8886 | else | |
8887 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8888 | break; | |
8889 | case SVt_PVBM: | |
8890 | SvANY(dstr) = new_XPVBM(); | |
8891 | SvCUR(dstr) = SvCUR(sstr); | |
8892 | SvLEN(dstr) = SvLEN(sstr); | |
8893 | SvIVX(dstr) = SvIVX(sstr); | |
8894 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8895 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8896 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8897 | if (SvROK(sstr)) |
5f68ba95 | 8898 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8899 | ? sv_dup(SvRV(sstr), param) |
8900 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8901 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8902 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8903 | else | |
8904 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8905 | BmRARE(dstr) = BmRARE(sstr); | |
8906 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
8907 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
8908 | break; | |
8909 | case SVt_PVLV: | |
8910 | SvANY(dstr) = new_XPVLV(); | |
8911 | SvCUR(dstr) = SvCUR(sstr); | |
8912 | SvLEN(dstr) = SvLEN(sstr); | |
8913 | SvIVX(dstr) = SvIVX(sstr); | |
8914 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8915 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8916 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8917 | if (SvROK(sstr)) |
5f68ba95 | 8918 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8919 | ? sv_dup(SvRV(sstr), param) |
8920 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8921 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8922 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8923 | else | |
8924 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8925 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ | |
8926 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
d2d73c3e | 8927 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); |
1d7c1841 GS |
8928 | LvTYPE(dstr) = LvTYPE(sstr); |
8929 | break; | |
8930 | case SVt_PVGV: | |
7fb37951 | 8931 | if (GvUNIQUE((GV*)sstr)) { |
5bd07a3d DM |
8932 | SV *share; |
8933 | if ((share = gv_share(sstr))) { | |
8934 | del_SV(dstr); | |
8935 | dstr = share; | |
8936 | #if 0 | |
8937 | PerlIO_printf(Perl_debug_log, "sv_dup: sharing %s::%s\n", | |
8938 | HvNAME(GvSTASH(share)), GvNAME(share)); | |
8939 | #endif | |
8940 | break; | |
8941 | } | |
8942 | } | |
1d7c1841 GS |
8943 | SvANY(dstr) = new_XPVGV(); |
8944 | SvCUR(dstr) = SvCUR(sstr); | |
8945 | SvLEN(dstr) = SvLEN(sstr); | |
8946 | SvIVX(dstr) = SvIVX(sstr); | |
8947 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8948 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8949 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8950 | if (SvROK(sstr)) |
5f68ba95 | 8951 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8952 | ? sv_dup(SvRV(sstr), param) |
8953 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8954 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8955 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8956 | else | |
8957 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8958 | GvNAMELEN(dstr) = GvNAMELEN(sstr); | |
8959 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 8960 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 8961 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 8962 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
8963 | (void)GpREFCNT_inc(GvGP(dstr)); |
8964 | break; | |
8965 | case SVt_PVIO: | |
8966 | SvANY(dstr) = new_XPVIO(); | |
8967 | SvCUR(dstr) = SvCUR(sstr); | |
8968 | SvLEN(dstr) = SvLEN(sstr); | |
8969 | SvIVX(dstr) = SvIVX(sstr); | |
8970 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8971 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8972 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8973 | if (SvROK(sstr)) |
5f68ba95 | 8974 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8975 | ? sv_dup(SvRV(sstr), param) |
8976 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8977 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8978 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8979 | else | |
8980 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8981 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr)); | |
8982 | if (IoOFP(sstr) == IoIFP(sstr)) | |
8983 | IoOFP(dstr) = IoIFP(dstr); | |
8984 | else | |
8985 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr)); | |
8986 | /* PL_rsfp_filters entries have fake IoDIRP() */ | |
8987 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
8988 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
8989 | else | |
8990 | IoDIRP(dstr) = IoDIRP(sstr); | |
8991 | IoLINES(dstr) = IoLINES(sstr); | |
8992 | IoPAGE(dstr) = IoPAGE(sstr); | |
8993 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
8994 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
8995 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); | |
d2d73c3e | 8996 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); |
1d7c1841 | 8997 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
d2d73c3e | 8998 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); |
1d7c1841 | 8999 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
d2d73c3e | 9000 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); |
1d7c1841 GS |
9001 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
9002 | IoTYPE(dstr) = IoTYPE(sstr); | |
9003 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
9004 | break; | |
9005 | case SVt_PVAV: | |
9006 | SvANY(dstr) = new_XPVAV(); | |
9007 | SvCUR(dstr) = SvCUR(sstr); | |
9008 | SvLEN(dstr) = SvLEN(sstr); | |
9009 | SvIVX(dstr) = SvIVX(sstr); | |
9010 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9011 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9012 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
9013 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); | |
1d7c1841 GS |
9014 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
9015 | if (AvARRAY((AV*)sstr)) { | |
9016 | SV **dst_ary, **src_ary; | |
9017 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
9018 | ||
9019 | src_ary = AvARRAY((AV*)sstr); | |
9020 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
9021 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
9022 | SvPVX(dstr) = (char*)dst_ary; | |
9023 | AvALLOC((AV*)dstr) = dst_ary; | |
9024 | if (AvREAL((AV*)sstr)) { | |
9025 | while (items-- > 0) | |
d2d73c3e | 9026 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
9027 | } |
9028 | else { | |
9029 | while (items-- > 0) | |
d2d73c3e | 9030 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
9031 | } |
9032 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
9033 | while (items-- > 0) { | |
9034 | *dst_ary++ = &PL_sv_undef; | |
9035 | } | |
9036 | } | |
9037 | else { | |
9038 | SvPVX(dstr) = Nullch; | |
9039 | AvALLOC((AV*)dstr) = (SV**)NULL; | |
9040 | } | |
9041 | break; | |
9042 | case SVt_PVHV: | |
9043 | SvANY(dstr) = new_XPVHV(); | |
9044 | SvCUR(dstr) = SvCUR(sstr); | |
9045 | SvLEN(dstr) = SvLEN(sstr); | |
9046 | SvIVX(dstr) = SvIVX(sstr); | |
9047 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9048 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9049 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
9050 | HvRITER((HV*)dstr) = HvRITER((HV*)sstr); |
9051 | if (HvARRAY((HV*)sstr)) { | |
1d7c1841 GS |
9052 | STRLEN i = 0; |
9053 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
9054 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
9055 | Newz(0, dxhv->xhv_array, | |
9056 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); | |
9057 | while (i <= sxhv->xhv_max) { | |
9058 | ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], | |
d2d73c3e | 9059 | !!HvSHAREKEYS(sstr), param); |
1d7c1841 GS |
9060 | ++i; |
9061 | } | |
d2d73c3e | 9062 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, !!HvSHAREKEYS(sstr), param); |
1d7c1841 GS |
9063 | } |
9064 | else { | |
9065 | SvPVX(dstr) = Nullch; | |
9066 | HvEITER((HV*)dstr) = (HE*)NULL; | |
9067 | } | |
9068 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
9069 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
c43294b8 | 9070 | /* Record stashes for possible cloning in Perl_clone(). */ |
6676db26 | 9071 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 9072 | av_push(param->stashes, dstr); |
1d7c1841 GS |
9073 | break; |
9074 | case SVt_PVFM: | |
9075 | SvANY(dstr) = new_XPVFM(); | |
9076 | FmLINES(dstr) = FmLINES(sstr); | |
9077 | goto dup_pvcv; | |
9078 | /* NOTREACHED */ | |
9079 | case SVt_PVCV: | |
9080 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 9081 | dup_pvcv: |
1d7c1841 GS |
9082 | SvCUR(dstr) = SvCUR(sstr); |
9083 | SvLEN(dstr) = SvLEN(sstr); | |
9084 | SvIVX(dstr) = SvIVX(sstr); | |
9085 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9086 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9087 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
9088 | if (SvPVX(sstr) && SvLEN(sstr)) |
9089 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
9090 | else | |
9091 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
d2d73c3e | 9092 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 GS |
9093 | CvSTART(dstr) = CvSTART(sstr); |
9094 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); | |
9095 | CvXSUB(dstr) = CvXSUB(sstr); | |
9096 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
01485f8b DM |
9097 | if (CvCONST(sstr)) { |
9098 | CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(sstr)) ? | |
9099 | SvREFCNT_inc(CvXSUBANY(sstr).any_ptr) : | |
9100 | sv_dup_inc(CvXSUBANY(sstr).any_ptr, param); | |
9101 | } | |
d2d73c3e AB |
9102 | CvGV(dstr) = gv_dup(CvGV(sstr), param); |
9103 | if (param->flags & CLONEf_COPY_STACKS) { | |
9104 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
9105 | } else { | |
9106 | CvDEPTH(dstr) = 0; | |
9107 | } | |
1d7c1841 GS |
9108 | if (CvPADLIST(sstr) && !AvREAL(CvPADLIST(sstr))) { |
9109 | /* XXX padlists are real, but pretend to be not */ | |
9110 | AvREAL_on(CvPADLIST(sstr)); | |
d2d73c3e | 9111 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
1d7c1841 GS |
9112 | AvREAL_off(CvPADLIST(sstr)); |
9113 | AvREAL_off(CvPADLIST(dstr)); | |
9114 | } | |
9115 | else | |
d2d73c3e | 9116 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
282f25c9 | 9117 | if (!CvANON(sstr) || CvCLONED(sstr)) |
d2d73c3e | 9118 | CvOUTSIDE(dstr) = cv_dup_inc(CvOUTSIDE(sstr), param); |
282f25c9 | 9119 | else |
d2d73c3e | 9120 | CvOUTSIDE(dstr) = cv_dup(CvOUTSIDE(sstr), param); |
1d7c1841 | 9121 | CvFLAGS(dstr) = CvFLAGS(sstr); |
54356c7d | 9122 | CvFILE(dstr) = CvXSUB(sstr) ? CvFILE(sstr) : SAVEPV(CvFILE(sstr)); |
1d7c1841 GS |
9123 | break; |
9124 | default: | |
9125 | Perl_croak(aTHX_ "Bizarre SvTYPE [%d]", SvTYPE(sstr)); | |
9126 | break; | |
9127 | } | |
9128 | ||
9129 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
9130 | ++PL_sv_objcount; | |
9131 | ||
9132 | return dstr; | |
d2d73c3e | 9133 | } |
1d7c1841 | 9134 | |
645c22ef DM |
9135 | /* duplicate a context */ |
9136 | ||
1d7c1841 | 9137 | PERL_CONTEXT * |
d2d73c3e | 9138 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, clone_params* param) |
1d7c1841 GS |
9139 | { |
9140 | PERL_CONTEXT *ncxs; | |
9141 | ||
9142 | if (!cxs) | |
9143 | return (PERL_CONTEXT*)NULL; | |
9144 | ||
9145 | /* look for it in the table first */ | |
9146 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
9147 | if (ncxs) | |
9148 | return ncxs; | |
9149 | ||
9150 | /* create anew and remember what it is */ | |
9151 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
9152 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
9153 | ||
9154 | while (ix >= 0) { | |
9155 | PERL_CONTEXT *cx = &cxs[ix]; | |
9156 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
9157 | ncx->cx_type = cx->cx_type; | |
9158 | if (CxTYPE(cx) == CXt_SUBST) { | |
9159 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
9160 | } | |
9161 | else { | |
9162 | ncx->blk_oldsp = cx->blk_oldsp; | |
9163 | ncx->blk_oldcop = cx->blk_oldcop; | |
9164 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
9165 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
9166 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
9167 | ncx->blk_oldpm = cx->blk_oldpm; | |
9168 | ncx->blk_gimme = cx->blk_gimme; | |
9169 | switch (CxTYPE(cx)) { | |
9170 | case CXt_SUB: | |
9171 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
9172 | ? cv_dup_inc(cx->blk_sub.cv, param) |
9173 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 9174 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 9175 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 9176 | : Nullav); |
d2d73c3e | 9177 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
9178 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
9179 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
9180 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
9181 | break; | |
9182 | case CXt_EVAL: | |
9183 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
9184 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
d2d73c3e | 9185 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param);; |
1d7c1841 | 9186 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 9187 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
1d7c1841 GS |
9188 | break; |
9189 | case CXt_LOOP: | |
9190 | ncx->blk_loop.label = cx->blk_loop.label; | |
9191 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
9192 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
9193 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
9194 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
9195 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
9196 | ? cx->blk_loop.iterdata | |
d2d73c3e | 9197 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
a4b82a6f GS |
9198 | ncx->blk_loop.oldcurpad |
9199 | = (SV**)ptr_table_fetch(PL_ptr_table, | |
9200 | cx->blk_loop.oldcurpad); | |
d2d73c3e AB |
9201 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
9202 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
9203 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
9204 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
9205 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
9206 | break; | |
9207 | case CXt_FORMAT: | |
d2d73c3e AB |
9208 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
9209 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
9210 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 GS |
9211 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
9212 | break; | |
9213 | case CXt_BLOCK: | |
9214 | case CXt_NULL: | |
9215 | break; | |
9216 | } | |
9217 | } | |
9218 | --ix; | |
9219 | } | |
9220 | return ncxs; | |
9221 | } | |
9222 | ||
645c22ef DM |
9223 | /* duplicate a stack info structure */ |
9224 | ||
1d7c1841 | 9225 | PERL_SI * |
d2d73c3e | 9226 | Perl_si_dup(pTHX_ PERL_SI *si, clone_params* param) |
1d7c1841 GS |
9227 | { |
9228 | PERL_SI *nsi; | |
9229 | ||
9230 | if (!si) | |
9231 | return (PERL_SI*)NULL; | |
9232 | ||
9233 | /* look for it in the table first */ | |
9234 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
9235 | if (nsi) | |
9236 | return nsi; | |
9237 | ||
9238 | /* create anew and remember what it is */ | |
9239 | Newz(56, nsi, 1, PERL_SI); | |
9240 | ptr_table_store(PL_ptr_table, si, nsi); | |
9241 | ||
d2d73c3e | 9242 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
9243 | nsi->si_cxix = si->si_cxix; |
9244 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 9245 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 9246 | nsi->si_type = si->si_type; |
d2d73c3e AB |
9247 | nsi->si_prev = si_dup(si->si_prev, param); |
9248 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
9249 | nsi->si_markoff = si->si_markoff; |
9250 | ||
9251 | return nsi; | |
9252 | } | |
9253 | ||
9254 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
9255 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
9256 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
9257 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
9258 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
9259 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
9260 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) | |
9261 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
9262 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
9263 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
9264 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
9265 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
9266 | ||
9267 | /* XXXXX todo */ | |
9268 | #define pv_dup_inc(p) SAVEPV(p) | |
9269 | #define pv_dup(p) SAVEPV(p) | |
9270 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
9271 | ||
645c22ef DM |
9272 | /* map any object to the new equivent - either something in the |
9273 | * ptr table, or something in the interpreter structure | |
9274 | */ | |
9275 | ||
1d7c1841 GS |
9276 | void * |
9277 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
9278 | { | |
9279 | void *ret; | |
9280 | ||
9281 | if (!v) | |
9282 | return (void*)NULL; | |
9283 | ||
9284 | /* look for it in the table first */ | |
9285 | ret = ptr_table_fetch(PL_ptr_table, v); | |
9286 | if (ret) | |
9287 | return ret; | |
9288 | ||
9289 | /* see if it is part of the interpreter structure */ | |
9290 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
acfe0abc | 9291 | ret = (void*)(((char*)aTHX) + (((char*)v) - (char*)proto_perl)); |
1d7c1841 GS |
9292 | else |
9293 | ret = v; | |
9294 | ||
9295 | return ret; | |
9296 | } | |
9297 | ||
645c22ef DM |
9298 | /* duplicate the save stack */ |
9299 | ||
1d7c1841 | 9300 | ANY * |
d2d73c3e | 9301 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, clone_params* param) |
1d7c1841 GS |
9302 | { |
9303 | ANY *ss = proto_perl->Tsavestack; | |
9304 | I32 ix = proto_perl->Tsavestack_ix; | |
9305 | I32 max = proto_perl->Tsavestack_max; | |
9306 | ANY *nss; | |
9307 | SV *sv; | |
9308 | GV *gv; | |
9309 | AV *av; | |
9310 | HV *hv; | |
9311 | void* ptr; | |
9312 | int intval; | |
9313 | long longval; | |
9314 | GP *gp; | |
9315 | IV iv; | |
9316 | I32 i; | |
c4e33207 | 9317 | char *c = NULL; |
1d7c1841 | 9318 | void (*dptr) (void*); |
acfe0abc | 9319 | void (*dxptr) (pTHX_ void*); |
e977893f | 9320 | OP *o; |
1d7c1841 GS |
9321 | |
9322 | Newz(54, nss, max, ANY); | |
9323 | ||
9324 | while (ix > 0) { | |
9325 | i = POPINT(ss,ix); | |
9326 | TOPINT(nss,ix) = i; | |
9327 | switch (i) { | |
9328 | case SAVEt_ITEM: /* normal string */ | |
9329 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9330 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9331 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9332 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9333 | break; |
9334 | case SAVEt_SV: /* scalar reference */ | |
9335 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9336 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9337 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9338 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 9339 | break; |
f4dd75d9 GS |
9340 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
9341 | c = (char*)POPPTR(ss,ix); | |
9342 | TOPPTR(nss,ix) = pv_dup(c); | |
9343 | ptr = POPPTR(ss,ix); | |
9344 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9345 | break; | |
1d7c1841 GS |
9346 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
9347 | case SAVEt_SVREF: /* scalar reference */ | |
9348 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9349 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9350 | ptr = POPPTR(ss,ix); |
9351 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
9352 | break; | |
9353 | case SAVEt_AV: /* array reference */ | |
9354 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9355 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 9356 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9357 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9358 | break; |
9359 | case SAVEt_HV: /* hash reference */ | |
9360 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9361 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 9362 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9363 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9364 | break; |
9365 | case SAVEt_INT: /* int reference */ | |
9366 | ptr = POPPTR(ss,ix); | |
9367 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9368 | intval = (int)POPINT(ss,ix); | |
9369 | TOPINT(nss,ix) = intval; | |
9370 | break; | |
9371 | case SAVEt_LONG: /* long reference */ | |
9372 | ptr = POPPTR(ss,ix); | |
9373 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9374 | longval = (long)POPLONG(ss,ix); | |
9375 | TOPLONG(nss,ix) = longval; | |
9376 | break; | |
9377 | case SAVEt_I32: /* I32 reference */ | |
9378 | case SAVEt_I16: /* I16 reference */ | |
9379 | case SAVEt_I8: /* I8 reference */ | |
9380 | ptr = POPPTR(ss,ix); | |
9381 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9382 | i = POPINT(ss,ix); | |
9383 | TOPINT(nss,ix) = i; | |
9384 | break; | |
9385 | case SAVEt_IV: /* IV reference */ | |
9386 | ptr = POPPTR(ss,ix); | |
9387 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9388 | iv = POPIV(ss,ix); | |
9389 | TOPIV(nss,ix) = iv; | |
9390 | break; | |
9391 | case SAVEt_SPTR: /* SV* reference */ | |
9392 | ptr = POPPTR(ss,ix); | |
9393 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9394 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9395 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
9396 | break; |
9397 | case SAVEt_VPTR: /* random* reference */ | |
9398 | ptr = POPPTR(ss,ix); | |
9399 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9400 | ptr = POPPTR(ss,ix); | |
9401 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9402 | break; | |
9403 | case SAVEt_PPTR: /* char* reference */ | |
9404 | ptr = POPPTR(ss,ix); | |
9405 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9406 | c = (char*)POPPTR(ss,ix); | |
9407 | TOPPTR(nss,ix) = pv_dup(c); | |
9408 | break; | |
9409 | case SAVEt_HPTR: /* HV* reference */ | |
9410 | ptr = POPPTR(ss,ix); | |
9411 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9412 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9413 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
9414 | break; |
9415 | case SAVEt_APTR: /* AV* reference */ | |
9416 | ptr = POPPTR(ss,ix); | |
9417 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9418 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9419 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
9420 | break; |
9421 | case SAVEt_NSTAB: | |
9422 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 9423 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9424 | break; |
9425 | case SAVEt_GP: /* scalar reference */ | |
9426 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 9427 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
9428 | (void)GpREFCNT_inc(gp); |
9429 | gv = (GV*)POPPTR(ss,ix); | |
2ed3c8fc | 9430 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 GS |
9431 | c = (char*)POPPTR(ss,ix); |
9432 | TOPPTR(nss,ix) = pv_dup(c); | |
9433 | iv = POPIV(ss,ix); | |
9434 | TOPIV(nss,ix) = iv; | |
9435 | iv = POPIV(ss,ix); | |
9436 | TOPIV(nss,ix) = iv; | |
9437 | break; | |
9438 | case SAVEt_FREESV: | |
26d9b02f | 9439 | case SAVEt_MORTALIZESV: |
1d7c1841 | 9440 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9441 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9442 | break; |
9443 | case SAVEt_FREEOP: | |
9444 | ptr = POPPTR(ss,ix); | |
9445 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
9446 | /* these are assumed to be refcounted properly */ | |
9447 | switch (((OP*)ptr)->op_type) { | |
9448 | case OP_LEAVESUB: | |
9449 | case OP_LEAVESUBLV: | |
9450 | case OP_LEAVEEVAL: | |
9451 | case OP_LEAVE: | |
9452 | case OP_SCOPE: | |
9453 | case OP_LEAVEWRITE: | |
e977893f GS |
9454 | TOPPTR(nss,ix) = ptr; |
9455 | o = (OP*)ptr; | |
9456 | OpREFCNT_inc(o); | |
1d7c1841 GS |
9457 | break; |
9458 | default: | |
9459 | TOPPTR(nss,ix) = Nullop; | |
9460 | break; | |
9461 | } | |
9462 | } | |
9463 | else | |
9464 | TOPPTR(nss,ix) = Nullop; | |
9465 | break; | |
9466 | case SAVEt_FREEPV: | |
9467 | c = (char*)POPPTR(ss,ix); | |
9468 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9469 | break; | |
9470 | case SAVEt_CLEARSV: | |
9471 | longval = POPLONG(ss,ix); | |
9472 | TOPLONG(nss,ix) = longval; | |
9473 | break; | |
9474 | case SAVEt_DELETE: | |
9475 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9476 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9477 | c = (char*)POPPTR(ss,ix); |
9478 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9479 | i = POPINT(ss,ix); | |
9480 | TOPINT(nss,ix) = i; | |
9481 | break; | |
9482 | case SAVEt_DESTRUCTOR: | |
9483 | ptr = POPPTR(ss,ix); | |
9484 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9485 | dptr = POPDPTR(ss,ix); | |
ef75a179 | 9486 | TOPDPTR(nss,ix) = (void (*)(void*))any_dup((void *)dptr, proto_perl); |
1d7c1841 GS |
9487 | break; |
9488 | case SAVEt_DESTRUCTOR_X: | |
9489 | ptr = POPPTR(ss,ix); | |
9490 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9491 | dxptr = POPDXPTR(ss,ix); | |
acfe0abc | 9492 | TOPDXPTR(nss,ix) = (void (*)(pTHX_ void*))any_dup((void *)dxptr, proto_perl); |
1d7c1841 GS |
9493 | break; |
9494 | case SAVEt_REGCONTEXT: | |
9495 | case SAVEt_ALLOC: | |
9496 | i = POPINT(ss,ix); | |
9497 | TOPINT(nss,ix) = i; | |
9498 | ix -= i; | |
9499 | break; | |
9500 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
9501 | i = POPINT(ss,ix); | |
9502 | TOPINT(nss,ix) = i; | |
9503 | break; | |
9504 | case SAVEt_AELEM: /* array element */ | |
9505 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9506 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9507 | i = POPINT(ss,ix); |
9508 | TOPINT(nss,ix) = i; | |
9509 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9510 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
9511 | break; |
9512 | case SAVEt_HELEM: /* hash element */ | |
9513 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9514 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9515 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9516 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9517 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 9518 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9519 | break; |
9520 | case SAVEt_OP: | |
9521 | ptr = POPPTR(ss,ix); | |
9522 | TOPPTR(nss,ix) = ptr; | |
9523 | break; | |
9524 | case SAVEt_HINTS: | |
9525 | i = POPINT(ss,ix); | |
9526 | TOPINT(nss,ix) = i; | |
9527 | break; | |
c4410b1b GS |
9528 | case SAVEt_COMPPAD: |
9529 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9530 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 9531 | break; |
c3564e5c GS |
9532 | case SAVEt_PADSV: |
9533 | longval = (long)POPLONG(ss,ix); | |
9534 | TOPLONG(nss,ix) = longval; | |
9535 | ptr = POPPTR(ss,ix); | |
9536 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9537 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9538 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 9539 | break; |
1d7c1841 GS |
9540 | default: |
9541 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
9542 | } | |
9543 | } | |
9544 | ||
9545 | return nss; | |
9546 | } | |
9547 | ||
645c22ef DM |
9548 | /* |
9549 | =for apidoc perl_clone | |
9550 | ||
9551 | Create and return a new interpreter by cloning the current one. | |
9552 | ||
9553 | =cut | |
9554 | */ | |
9555 | ||
9556 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
3fc56081 NK |
9557 | EXTERN_C PerlInterpreter * |
9558 | perl_clone_host(PerlInterpreter* proto_perl, UV flags); | |
645c22ef | 9559 | |
1d7c1841 GS |
9560 | PerlInterpreter * |
9561 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
9562 | { | |
1d7c1841 | 9563 | #ifdef PERL_IMPLICIT_SYS |
c43294b8 AB |
9564 | |
9565 | /* perlhost.h so we need to call into it | |
9566 | to clone the host, CPerlHost should have a c interface, sky */ | |
9567 | ||
9568 | if (flags & CLONEf_CLONE_HOST) { | |
9569 | return perl_clone_host(proto_perl,flags); | |
9570 | } | |
9571 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
9572 | proto_perl->IMem, |
9573 | proto_perl->IMemShared, | |
9574 | proto_perl->IMemParse, | |
9575 | proto_perl->IEnv, | |
9576 | proto_perl->IStdIO, | |
9577 | proto_perl->ILIO, | |
9578 | proto_perl->IDir, | |
9579 | proto_perl->ISock, | |
9580 | proto_perl->IProc); | |
9581 | } | |
9582 | ||
9583 | PerlInterpreter * | |
9584 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
9585 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
9586 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
9587 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
9588 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
9589 | struct IPerlProc* ipP) | |
9590 | { | |
9591 | /* XXX many of the string copies here can be optimized if they're | |
9592 | * constants; they need to be allocated as common memory and just | |
9593 | * their pointers copied. */ | |
9594 | ||
9595 | IV i; | |
d2d73c3e | 9596 | clone_params* param = (clone_params*) malloc(sizeof(clone_params)); |
d2d73c3e | 9597 | |
1d7c1841 | 9598 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
ba869deb | 9599 | PERL_SET_THX(my_perl); |
1d7c1841 | 9600 | |
acfe0abc | 9601 | # ifdef DEBUGGING |
1d7c1841 GS |
9602 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); |
9603 | PL_markstack = 0; | |
9604 | PL_scopestack = 0; | |
9605 | PL_savestack = 0; | |
9606 | PL_retstack = 0; | |
66fe0623 | 9607 | PL_sig_pending = 0; |
acfe0abc | 9608 | # else /* !DEBUGGING */ |
1d7c1841 | 9609 | Zero(my_perl, 1, PerlInterpreter); |
acfe0abc | 9610 | # endif /* DEBUGGING */ |
1d7c1841 GS |
9611 | |
9612 | /* host pointers */ | |
9613 | PL_Mem = ipM; | |
9614 | PL_MemShared = ipMS; | |
9615 | PL_MemParse = ipMP; | |
9616 | PL_Env = ipE; | |
9617 | PL_StdIO = ipStd; | |
9618 | PL_LIO = ipLIO; | |
9619 | PL_Dir = ipD; | |
9620 | PL_Sock = ipS; | |
9621 | PL_Proc = ipP; | |
1d7c1841 GS |
9622 | #else /* !PERL_IMPLICIT_SYS */ |
9623 | IV i; | |
d2d73c3e | 9624 | clone_params* param = (clone_params*) malloc(sizeof(clone_params)); |
1d7c1841 | 9625 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 9626 | PERL_SET_THX(my_perl); |
1d7c1841 | 9627 | |
d2d73c3e AB |
9628 | |
9629 | ||
1d7c1841 GS |
9630 | # ifdef DEBUGGING |
9631 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); | |
9632 | PL_markstack = 0; | |
9633 | PL_scopestack = 0; | |
9634 | PL_savestack = 0; | |
9635 | PL_retstack = 0; | |
66fe0623 | 9636 | PL_sig_pending = 0; |
1d7c1841 GS |
9637 | # else /* !DEBUGGING */ |
9638 | Zero(my_perl, 1, PerlInterpreter); | |
9639 | # endif /* DEBUGGING */ | |
9640 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 9641 | param->flags = flags; |
1d7c1841 GS |
9642 | |
9643 | /* arena roots */ | |
9644 | PL_xiv_arenaroot = NULL; | |
9645 | PL_xiv_root = NULL; | |
612f20c3 | 9646 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 9647 | PL_xnv_root = NULL; |
612f20c3 | 9648 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 9649 | PL_xrv_root = NULL; |
612f20c3 | 9650 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 9651 | PL_xpv_root = NULL; |
612f20c3 | 9652 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 9653 | PL_xpviv_root = NULL; |
612f20c3 | 9654 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 9655 | PL_xpvnv_root = NULL; |
612f20c3 | 9656 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 9657 | PL_xpvcv_root = NULL; |
612f20c3 | 9658 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 9659 | PL_xpvav_root = NULL; |
612f20c3 | 9660 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 9661 | PL_xpvhv_root = NULL; |
612f20c3 | 9662 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 9663 | PL_xpvmg_root = NULL; |
612f20c3 | 9664 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 9665 | PL_xpvlv_root = NULL; |
612f20c3 | 9666 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 9667 | PL_xpvbm_root = NULL; |
612f20c3 | 9668 | PL_he_arenaroot = NULL; |
1d7c1841 GS |
9669 | PL_he_root = NULL; |
9670 | PL_nice_chunk = NULL; | |
9671 | PL_nice_chunk_size = 0; | |
9672 | PL_sv_count = 0; | |
9673 | PL_sv_objcount = 0; | |
9674 | PL_sv_root = Nullsv; | |
9675 | PL_sv_arenaroot = Nullsv; | |
9676 | ||
9677 | PL_debug = proto_perl->Idebug; | |
9678 | ||
e5dd39fc AB |
9679 | #ifdef USE_REENTRANT_API |
9680 | New(31337, PL_reentrant_buffer,1, REBUF); | |
9681 | New(31337, PL_reentrant_buffer->tmbuff,1, struct tm); | |
9682 | #endif | |
9683 | ||
1d7c1841 GS |
9684 | /* create SV map for pointer relocation */ |
9685 | PL_ptr_table = ptr_table_new(); | |
9686 | ||
9687 | /* initialize these special pointers as early as possible */ | |
9688 | SvANY(&PL_sv_undef) = NULL; | |
9689 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
9690 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
9691 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
9692 | ||
1d7c1841 | 9693 | SvANY(&PL_sv_no) = new_XPVNV(); |
1d7c1841 GS |
9694 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
9695 | SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9696 | SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0); | |
9697 | SvCUR(&PL_sv_no) = 0; | |
9698 | SvLEN(&PL_sv_no) = 1; | |
9699 | SvNVX(&PL_sv_no) = 0; | |
9700 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); | |
9701 | ||
1d7c1841 | 9702 | SvANY(&PL_sv_yes) = new_XPVNV(); |
1d7c1841 GS |
9703 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
9704 | SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9705 | SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1); | |
9706 | SvCUR(&PL_sv_yes) = 1; | |
9707 | SvLEN(&PL_sv_yes) = 2; | |
9708 | SvNVX(&PL_sv_yes) = 1; | |
9709 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); | |
9710 | ||
9711 | /* create shared string table */ | |
9712 | PL_strtab = newHV(); | |
9713 | HvSHAREKEYS_off(PL_strtab); | |
9714 | hv_ksplit(PL_strtab, 512); | |
9715 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); | |
9716 | ||
9717 | PL_compiling = proto_perl->Icompiling; | |
9718 | PL_compiling.cop_stashpv = SAVEPV(PL_compiling.cop_stashpv); | |
9719 | PL_compiling.cop_file = SAVEPV(PL_compiling.cop_file); | |
9720 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); | |
9721 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 9722 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 9723 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 9724 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
9725 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
9726 | ||
9727 | /* pseudo environmental stuff */ | |
9728 | PL_origargc = proto_perl->Iorigargc; | |
9729 | i = PL_origargc; | |
9730 | New(0, PL_origargv, i+1, char*); | |
9731 | PL_origargv[i] = '\0'; | |
9732 | while (i-- > 0) { | |
9733 | PL_origargv[i] = SAVEPV(proto_perl->Iorigargv[i]); | |
9734 | } | |
d2d73c3e AB |
9735 | |
9736 | ||
9737 | param->stashes = newAV(); /* Setup array of objects to call clone on */ | |
9738 | ||
9739 | ||
9740 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
9741 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
9742 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 9743 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
9744 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
9745 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
9746 | |
9747 | /* switches */ | |
9748 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 9749 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
9750 | PL_localpatches = proto_perl->Ilocalpatches; |
9751 | PL_splitstr = proto_perl->Isplitstr; | |
9752 | PL_preprocess = proto_perl->Ipreprocess; | |
9753 | PL_minus_n = proto_perl->Iminus_n; | |
9754 | PL_minus_p = proto_perl->Iminus_p; | |
9755 | PL_minus_l = proto_perl->Iminus_l; | |
9756 | PL_minus_a = proto_perl->Iminus_a; | |
9757 | PL_minus_F = proto_perl->Iminus_F; | |
9758 | PL_doswitches = proto_perl->Idoswitches; | |
9759 | PL_dowarn = proto_perl->Idowarn; | |
9760 | PL_doextract = proto_perl->Idoextract; | |
9761 | PL_sawampersand = proto_perl->Isawampersand; | |
9762 | PL_unsafe = proto_perl->Iunsafe; | |
9763 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 9764 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
9765 | PL_perldb = proto_perl->Iperldb; |
9766 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
1cbb0781 | 9767 | PL_exit_flags = proto_perl->Iexit_flags; |
1d7c1841 GS |
9768 | |
9769 | /* magical thingies */ | |
9770 | /* XXX time(&PL_basetime) when asked for? */ | |
9771 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 9772 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
9773 | |
9774 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
9775 | PL_multiline = proto_perl->Imultiline; | |
9776 | PL_statusvalue = proto_perl->Istatusvalue; | |
9777 | #ifdef VMS | |
9778 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
9779 | #endif | |
9780 | ||
d2f185dc AMS |
9781 | /* Clone the regex array */ |
9782 | PL_regex_padav = newAV(); | |
9783 | { | |
9784 | I32 len = av_len((AV*)proto_perl->Iregex_padav); | |
9785 | SV** regexen = AvARRAY((AV*)proto_perl->Iregex_padav); | |
9786 | for(i = 0; i <= len; i++) { | |
9787 | av_push(PL_regex_padav, | |
5269aecd AB |
9788 | SvREFCNT_inc( |
9789 | newSViv((IV)re_dup((REGEXP *) | |
9790 | SvIVX(regexen[i]), param)) | |
9791 | )); | |
d2f185dc AMS |
9792 | } |
9793 | } | |
9794 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 9795 | |
1d7c1841 | 9796 | /* shortcuts to various I/O objects */ |
d2d73c3e AB |
9797 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
9798 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
9799 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
9800 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
9801 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
9802 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
9803 | |
9804 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 9805 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
9806 | |
9807 | /* shortcuts to misc objects */ | |
d2d73c3e | 9808 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
9809 | |
9810 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
9811 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
9812 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
9813 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
9814 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
9815 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
9816 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
9817 | PL_lineary = av_dup(proto_perl->Ilineary, param); | |
9818 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
9819 | |
9820 | /* symbol tables */ | |
d2d73c3e AB |
9821 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
9822 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
9823 | PL_nullstash = hv_dup(proto_perl->Inullstash, param); | |
9824 | PL_debstash = hv_dup(proto_perl->Idebstash, param); | |
9825 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
9826 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
9827 | ||
9828 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
9829 | PL_endav = av_dup_inc(proto_perl->Iendav, param); | |
9830 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
9831 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
9832 | |
9833 | PL_sub_generation = proto_perl->Isub_generation; | |
9834 | ||
9835 | /* funky return mechanisms */ | |
9836 | PL_forkprocess = proto_perl->Iforkprocess; | |
9837 | ||
9838 | /* subprocess state */ | |
d2d73c3e | 9839 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
9840 | |
9841 | /* internal state */ | |
9842 | PL_tainting = proto_perl->Itainting; | |
9843 | PL_maxo = proto_perl->Imaxo; | |
9844 | if (proto_perl->Iop_mask) | |
9845 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
9846 | else | |
9847 | PL_op_mask = Nullch; | |
9848 | ||
9849 | /* current interpreter roots */ | |
d2d73c3e | 9850 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
9851 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
9852 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 9853 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
9854 | PL_eval_start = proto_perl->Ieval_start; |
9855 | ||
9856 | /* runtime control stuff */ | |
9857 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
9858 | PL_copline = proto_perl->Icopline; | |
9859 | ||
9860 | PL_filemode = proto_perl->Ifilemode; | |
9861 | PL_lastfd = proto_perl->Ilastfd; | |
9862 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
9863 | PL_Argv = NULL; | |
9864 | PL_Cmd = Nullch; | |
9865 | PL_gensym = proto_perl->Igensym; | |
9866 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 9867 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
9868 | PL_laststatval = proto_perl->Ilaststatval; |
9869 | PL_laststype = proto_perl->Ilaststype; | |
9870 | PL_mess_sv = Nullsv; | |
9871 | ||
d2d73c3e | 9872 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
9873 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
9874 | ||
9875 | /* interpreter atexit processing */ | |
9876 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
9877 | if (PL_exitlistlen) { | |
9878 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
9879 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
9880 | } | |
9881 | else | |
9882 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 9883 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
1d7c1841 GS |
9884 | |
9885 | PL_profiledata = NULL; | |
9886 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<'); | |
9887 | /* PL_rsfp_filters entries have fake IoDIRP() */ | |
d2d73c3e | 9888 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 9889 | |
d2d73c3e AB |
9890 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
9891 | PL_comppad = av_dup(proto_perl->Icomppad, param); | |
9892 | PL_comppad_name = av_dup(proto_perl->Icomppad_name, param); | |
1d7c1841 GS |
9893 | PL_comppad_name_fill = proto_perl->Icomppad_name_fill; |
9894 | PL_comppad_name_floor = proto_perl->Icomppad_name_floor; | |
9895 | PL_curpad = (SV**)ptr_table_fetch(PL_ptr_table, | |
9896 | proto_perl->Tcurpad); | |
9897 | ||
9898 | #ifdef HAVE_INTERP_INTERN | |
9899 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
9900 | #endif | |
9901 | ||
9902 | /* more statics moved here */ | |
9903 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 9904 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
9905 | |
9906 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
9907 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
9908 | ||
9909 | PL_uid = proto_perl->Iuid; | |
9910 | PL_euid = proto_perl->Ieuid; | |
9911 | PL_gid = proto_perl->Igid; | |
9912 | PL_egid = proto_perl->Iegid; | |
9913 | PL_nomemok = proto_perl->Inomemok; | |
9914 | PL_an = proto_perl->Ian; | |
9915 | PL_cop_seqmax = proto_perl->Icop_seqmax; | |
9916 | PL_op_seqmax = proto_perl->Iop_seqmax; | |
9917 | PL_evalseq = proto_perl->Ievalseq; | |
9918 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
9919 | PL_origalen = proto_perl->Iorigalen; | |
9920 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
9921 | PL_osname = SAVEPV(proto_perl->Iosname); | |
0bb09c15 | 9922 | PL_sh_path = proto_perl->Ish_path; /* XXX never deallocated */ |
1d7c1841 GS |
9923 | PL_sighandlerp = proto_perl->Isighandlerp; |
9924 | ||
9925 | ||
9926 | PL_runops = proto_perl->Irunops; | |
9927 | ||
9928 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
9929 | ||
9930 | #ifdef CSH | |
9931 | PL_cshlen = proto_perl->Icshlen; | |
74f1b2b8 | 9932 | PL_cshname = proto_perl->Icshname; /* XXX never deallocated */ |
1d7c1841 GS |
9933 | #endif |
9934 | ||
9935 | PL_lex_state = proto_perl->Ilex_state; | |
9936 | PL_lex_defer = proto_perl->Ilex_defer; | |
9937 | PL_lex_expect = proto_perl->Ilex_expect; | |
9938 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
9939 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
9940 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
9941 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
9942 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
9943 | PL_lex_op = proto_perl->Ilex_op; |
9944 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
9945 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
9946 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
9947 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
9948 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
9949 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
9950 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
9951 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
9952 | ||
9953 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
9954 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
9955 | PL_nexttoke = proto_perl->Inexttoke; | |
9956 | ||
d2d73c3e | 9957 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); |
1d7c1841 GS |
9958 | i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); |
9959 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9960 | i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); | |
9961 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9962 | i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); | |
9963 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9964 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
9965 | i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); | |
9966 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9967 | PL_pending_ident = proto_perl->Ipending_ident; | |
9968 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
9969 | ||
9970 | PL_expect = proto_perl->Iexpect; | |
9971 | ||
9972 | PL_multi_start = proto_perl->Imulti_start; | |
9973 | PL_multi_end = proto_perl->Imulti_end; | |
9974 | PL_multi_open = proto_perl->Imulti_open; | |
9975 | PL_multi_close = proto_perl->Imulti_close; | |
9976 | ||
9977 | PL_error_count = proto_perl->Ierror_count; | |
9978 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 9979 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 GS |
9980 | |
9981 | PL_min_intro_pending = proto_perl->Imin_intro_pending; | |
9982 | PL_max_intro_pending = proto_perl->Imax_intro_pending; | |
9983 | PL_padix = proto_perl->Ipadix; | |
9984 | PL_padix_floor = proto_perl->Ipadix_floor; | |
9985 | PL_pad_reset_pending = proto_perl->Ipad_reset_pending; | |
9986 | ||
9987 | i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); | |
9988 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9989 | i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); | |
9990 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
9991 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
9992 | PL_in_my = proto_perl->Iin_my; | |
d2d73c3e | 9993 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
9994 | #ifdef FCRYPT |
9995 | PL_cryptseen = proto_perl->Icryptseen; | |
9996 | #endif | |
9997 | ||
9998 | PL_hints = proto_perl->Ihints; | |
9999 | ||
10000 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
10001 | ||
10002 | #ifdef USE_LOCALE_COLLATE | |
10003 | PL_collation_ix = proto_perl->Icollation_ix; | |
10004 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
10005 | PL_collation_standard = proto_perl->Icollation_standard; | |
10006 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
10007 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
10008 | #endif /* USE_LOCALE_COLLATE */ | |
10009 | ||
10010 | #ifdef USE_LOCALE_NUMERIC | |
10011 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
10012 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
10013 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 10014 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
10015 | #endif /* !USE_LOCALE_NUMERIC */ |
10016 | ||
10017 | /* utf8 character classes */ | |
d2d73c3e AB |
10018 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
10019 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
10020 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
10021 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
10022 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
10023 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
10024 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
10025 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
10026 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
10027 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
10028 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
10029 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
10030 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
10031 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
10032 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
10033 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
10034 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
1d7c1841 GS |
10035 | |
10036 | /* swatch cache */ | |
10037 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
10038 | PL_last_swash_klen = 0; | |
10039 | PL_last_swash_key[0]= '\0'; | |
10040 | PL_last_swash_tmps = (U8*)NULL; | |
10041 | PL_last_swash_slen = 0; | |
10042 | ||
10043 | /* perly.c globals */ | |
10044 | PL_yydebug = proto_perl->Iyydebug; | |
10045 | PL_yynerrs = proto_perl->Iyynerrs; | |
10046 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
10047 | PL_yychar = proto_perl->Iyychar; | |
10048 | PL_yyval = proto_perl->Iyyval; | |
10049 | PL_yylval = proto_perl->Iyylval; | |
10050 | ||
10051 | PL_glob_index = proto_perl->Iglob_index; | |
10052 | PL_srand_called = proto_perl->Isrand_called; | |
10053 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
10054 | PL_bitcount = Nullch; /* reinits on demand */ | |
10055 | ||
66fe0623 NIS |
10056 | if (proto_perl->Ipsig_pend) { |
10057 | Newz(0, PL_psig_pend, SIG_SIZE, int); | |
9dd79c3f | 10058 | } |
66fe0623 NIS |
10059 | else { |
10060 | PL_psig_pend = (int*)NULL; | |
10061 | } | |
10062 | ||
1d7c1841 | 10063 | if (proto_perl->Ipsig_ptr) { |
76d3c696 JH |
10064 | Newz(0, PL_psig_ptr, SIG_SIZE, SV*); |
10065 | Newz(0, PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 10066 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
10067 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
10068 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
10069 | } |
10070 | } | |
10071 | else { | |
10072 | PL_psig_ptr = (SV**)NULL; | |
10073 | PL_psig_name = (SV**)NULL; | |
10074 | } | |
10075 | ||
10076 | /* thrdvar.h stuff */ | |
10077 | ||
a0739874 | 10078 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
10079 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
10080 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
10081 | PL_tmps_max = proto_perl->Ttmps_max; | |
10082 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
10083 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
10084 | i = 0; | |
10085 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 10086 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
10087 | ++i; |
10088 | } | |
10089 | ||
10090 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
10091 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
10092 | Newz(54, PL_markstack, i, I32); | |
10093 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
10094 | - proto_perl->Tmarkstack); | |
10095 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
10096 | - proto_perl->Tmarkstack); | |
10097 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
10098 | PL_markstack_ptr - PL_markstack + 1, I32); | |
10099 | ||
10100 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
10101 | * NOTE: unlike the others! */ | |
10102 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
10103 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
10104 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
10105 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
10106 | ||
10107 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
10108 | * NOTE: unlike the others! */ | |
10109 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
10110 | PL_retstack_max = proto_perl->Tretstack_max; | |
10111 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
10112 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, I32); | |
10113 | ||
10114 | /* NOTE: si_dup() looks at PL_markstack */ | |
d2d73c3e | 10115 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
10116 | |
10117 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
10118 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
10119 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
10120 | |
10121 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
10122 | PL_stack_base = AvARRAY(PL_curstack); | |
10123 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
10124 | - proto_perl->Tstack_base); | |
10125 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
10126 | ||
10127 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
10128 | * NOTE: unlike the others! */ | |
10129 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
10130 | PL_savestack_max = proto_perl->Tsavestack_max; | |
10131 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
d2d73c3e | 10132 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
10133 | } |
10134 | else { | |
10135 | init_stacks(); | |
985e7056 | 10136 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
10137 | } |
10138 | ||
10139 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
10140 | PL_top_env = &PL_start_env; | |
10141 | ||
10142 | PL_op = proto_perl->Top; | |
10143 | ||
10144 | PL_Sv = Nullsv; | |
10145 | PL_Xpv = (XPV*)NULL; | |
10146 | PL_na = proto_perl->Tna; | |
10147 | ||
10148 | PL_statbuf = proto_perl->Tstatbuf; | |
10149 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
10150 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
10151 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
10152 | #ifdef HAS_TIMES |
10153 | PL_timesbuf = proto_perl->Ttimesbuf; | |
10154 | #endif | |
10155 | ||
10156 | PL_tainted = proto_perl->Ttainted; | |
10157 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
10158 | PL_nrs = sv_dup_inc(proto_perl->Tnrs, param); |
10159 | PL_rs = sv_dup_inc(proto_perl->Trs, param); | |
10160 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
10161 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
10162 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 10163 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
10164 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
10165 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
10166 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
10167 | |
10168 | PL_restartop = proto_perl->Trestartop; | |
10169 | PL_in_eval = proto_perl->Tin_eval; | |
10170 | PL_delaymagic = proto_perl->Tdelaymagic; | |
10171 | PL_dirty = proto_perl->Tdirty; | |
10172 | PL_localizing = proto_perl->Tlocalizing; | |
10173 | ||
14dd3ad8 | 10174 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 10175 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 10176 | #endif |
d2d73c3e | 10177 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
1d7c1841 GS |
10178 | PL_av_fetch_sv = Nullsv; |
10179 | PL_hv_fetch_sv = Nullsv; | |
10180 | Zero(&PL_hv_fetch_ent_mh, 1, HE); /* XXX */ | |
10181 | PL_modcount = proto_perl->Tmodcount; | |
10182 | PL_lastgotoprobe = Nullop; | |
10183 | PL_dumpindent = proto_perl->Tdumpindent; | |
10184 | ||
10185 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
10186 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
10187 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
10188 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
10189 | PL_sortcxix = proto_perl->Tsortcxix; |
10190 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
10191 | PL_efloatsize = 0; /* reinits on demand */ | |
10192 | ||
10193 | /* regex stuff */ | |
10194 | ||
10195 | PL_screamfirst = NULL; | |
10196 | PL_screamnext = NULL; | |
10197 | PL_maxscream = -1; /* reinits on demand */ | |
10198 | PL_lastscream = Nullsv; | |
10199 | ||
10200 | PL_watchaddr = NULL; | |
10201 | PL_watchok = Nullch; | |
10202 | ||
10203 | PL_regdummy = proto_perl->Tregdummy; | |
10204 | PL_regcomp_parse = Nullch; | |
10205 | PL_regxend = Nullch; | |
10206 | PL_regcode = (regnode*)NULL; | |
10207 | PL_regnaughty = 0; | |
10208 | PL_regsawback = 0; | |
10209 | PL_regprecomp = Nullch; | |
10210 | PL_regnpar = 0; | |
10211 | PL_regsize = 0; | |
10212 | PL_regflags = 0; | |
10213 | PL_regseen = 0; | |
10214 | PL_seen_zerolen = 0; | |
10215 | PL_seen_evals = 0; | |
10216 | PL_regcomp_rx = (regexp*)NULL; | |
10217 | PL_extralen = 0; | |
10218 | PL_colorset = 0; /* reinits PL_colors[] */ | |
10219 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
10220 | PL_reg_whilem_seen = 0; | |
10221 | PL_reginput = Nullch; | |
10222 | PL_regbol = Nullch; | |
10223 | PL_regeol = Nullch; | |
10224 | PL_regstartp = (I32*)NULL; | |
10225 | PL_regendp = (I32*)NULL; | |
10226 | PL_reglastparen = (U32*)NULL; | |
10227 | PL_regtill = Nullch; | |
1d7c1841 GS |
10228 | PL_reg_start_tmp = (char**)NULL; |
10229 | PL_reg_start_tmpl = 0; | |
10230 | PL_regdata = (struct reg_data*)NULL; | |
10231 | PL_bostr = Nullch; | |
10232 | PL_reg_flags = 0; | |
10233 | PL_reg_eval_set = 0; | |
10234 | PL_regnarrate = 0; | |
10235 | PL_regprogram = (regnode*)NULL; | |
10236 | PL_regindent = 0; | |
10237 | PL_regcc = (CURCUR*)NULL; | |
10238 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
10239 | PL_reg_re = (regexp*)NULL; | |
10240 | PL_reg_ganch = Nullch; | |
10241 | PL_reg_sv = Nullsv; | |
53c4c00c | 10242 | PL_reg_match_utf8 = FALSE; |
1d7c1841 GS |
10243 | PL_reg_magic = (MAGIC*)NULL; |
10244 | PL_reg_oldpos = 0; | |
10245 | PL_reg_oldcurpm = (PMOP*)NULL; | |
10246 | PL_reg_curpm = (PMOP*)NULL; | |
10247 | PL_reg_oldsaved = Nullch; | |
10248 | PL_reg_oldsavedlen = 0; | |
10249 | PL_reg_maxiter = 0; | |
10250 | PL_reg_leftiter = 0; | |
10251 | PL_reg_poscache = Nullch; | |
10252 | PL_reg_poscache_size= 0; | |
10253 | ||
10254 | /* RE engine - function pointers */ | |
10255 | PL_regcompp = proto_perl->Tregcompp; | |
10256 | PL_regexecp = proto_perl->Tregexecp; | |
10257 | PL_regint_start = proto_perl->Tregint_start; | |
10258 | PL_regint_string = proto_perl->Tregint_string; | |
10259 | PL_regfree = proto_perl->Tregfree; | |
10260 | ||
10261 | PL_reginterp_cnt = 0; | |
10262 | PL_reg_starttry = 0; | |
10263 | ||
a2efc822 SC |
10264 | /* Pluggable optimizer */ |
10265 | PL_peepp = proto_perl->Tpeepp; | |
10266 | ||
a0739874 DM |
10267 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
10268 | ptr_table_free(PL_ptr_table); | |
10269 | PL_ptr_table = NULL; | |
10270 | } | |
4a09accc | 10271 | |
f284b03f AMS |
10272 | /* Call the ->CLONE method, if it exists, for each of the stashes |
10273 | identified by sv_dup() above. | |
10274 | */ | |
d2d73c3e AB |
10275 | while(av_len(param->stashes) != -1) { |
10276 | HV* stash = (HV*) av_shift(param->stashes); | |
f284b03f AMS |
10277 | GV* cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); |
10278 | if (cloner && GvCV(cloner)) { | |
10279 | dSP; | |
10280 | ENTER; | |
10281 | SAVETMPS; | |
10282 | PUSHMARK(SP); | |
dc507217 | 10283 | XPUSHs(sv_2mortal(newSVpv(HvNAME(stash), 0))); |
f284b03f AMS |
10284 | PUTBACK; |
10285 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
10286 | FREETMPS; | |
10287 | LEAVE; | |
10288 | } | |
4a09accc | 10289 | } |
a0739874 | 10290 | |
dc507217 DM |
10291 | SvREFCNT_dec(param->stashes); |
10292 | Safefree(param); | |
10293 | ||
1d7c1841 | 10294 | return my_perl; |
1d7c1841 GS |
10295 | } |
10296 | ||
1d7c1841 | 10297 | #endif /* USE_ITHREADS */ |