Commit | Line | Data |
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a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
eb1102fc | 3 | * Copyright (c) 1991-2002, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e | 8 | * "I wonder what the Entish is for 'yes' and 'no'," he thought. |
645c22ef DM |
9 | * |
10 | * | |
5e045b90 AMS |
11 | * This file contains the code that creates, manipulates and destroys |
12 | * scalar values (SVs). The other types (AV, HV, GV, etc.) reuse the | |
13 | * structure of an SV, so their creation and destruction is handled | |
14 | * here; higher-level functions are in av.c, hv.c, and so on. Opcode | |
15 | * level functions (eg. substr, split, join) for each of the types are | |
16 | * in the pp*.c files. | |
79072805 LW |
17 | */ |
18 | ||
19 | #include "EXTERN.h" | |
864dbfa3 | 20 | #define PERL_IN_SV_C |
79072805 | 21 | #include "perl.h" |
d2f185dc | 22 | #include "regcomp.h" |
79072805 | 23 | |
51371543 | 24 | #define FCALL *f |
6fc92669 | 25 | #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_force_normal(sv) |
2c5424a7 | 26 | |
645c22ef DM |
27 | |
28 | /* ============================================================================ | |
29 | ||
30 | =head1 Allocation and deallocation of SVs. | |
31 | ||
5e045b90 AMS |
32 | An SV (or AV, HV, etc.) is allocated in two parts: the head (struct sv, |
33 | av, hv...) contains type and reference count information, as well as a | |
34 | pointer to the body (struct xrv, xpv, xpviv...), which contains fields | |
35 | specific to each type. | |
36 | ||
37 | Normally, this allocation is done using arenas, which are approximately | |
38 | 1K chunks of memory parcelled up into N heads or bodies. The first slot | |
39 | in each arena is reserved, and is used to hold a link to the next arena. | |
40 | In the case of heads, the unused first slot also contains some flags and | |
41 | a note of the number of slots. Snaked through each arena chain is a | |
42 | linked list of free items; when this becomes empty, an extra arena is | |
43 | allocated and divided up into N items which are threaded into the free | |
44 | list. | |
645c22ef DM |
45 | |
46 | The following global variables are associated with arenas: | |
47 | ||
48 | PL_sv_arenaroot pointer to list of SV arenas | |
49 | PL_sv_root pointer to list of free SV structures | |
50 | ||
51 | PL_foo_arenaroot pointer to list of foo arenas, | |
52 | PL_foo_root pointer to list of free foo bodies | |
53 | ... for foo in xiv, xnv, xrv, xpv etc. | |
54 | ||
55 | Note that some of the larger and more rarely used body types (eg xpvio) | |
56 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
57 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
58 | with all items individually malloc()ed. In addition, a few SV heads are | |
59 | not allocated from an arena, but are instead directly created as static | |
60 | or auto variables, eg PL_sv_undef. | |
61 | ||
62 | The SV arena serves the secondary purpose of allowing still-live SVs | |
63 | to be located and destroyed during final cleanup. | |
64 | ||
65 | At the lowest level, the macros new_SV() and del_SV() grab and free | |
66 | an SV head. (If debugging with -DD, del_SV() calls the function S_del_sv() | |
67 | to return the SV to the free list with error checking.) new_SV() calls | |
68 | more_sv() / sv_add_arena() to add an extra arena if the free list is empty. | |
69 | SVs in the free list have their SvTYPE field set to all ones. | |
70 | ||
71 | Similarly, there are macros new_XIV()/del_XIV(), new_XNV()/del_XNV() etc | |
72 | that allocate and return individual body types. Normally these are mapped | |
ff276b08 RG |
73 | to the arena-manipulating functions new_xiv()/del_xiv() etc, but may be |
74 | instead mapped directly to malloc()/free() if PURIFY is defined. The | |
645c22ef DM |
75 | new/del functions remove from, or add to, the appropriate PL_foo_root |
76 | list, and call more_xiv() etc to add a new arena if the list is empty. | |
77 | ||
ff276b08 | 78 | At the time of very final cleanup, sv_free_arenas() is called from |
645c22ef DM |
79 | perl_destruct() to physically free all the arenas allocated since the |
80 | start of the interpreter. Note that this also clears PL_he_arenaroot, | |
81 | which is otherwise dealt with in hv.c. | |
82 | ||
83 | Manipulation of any of the PL_*root pointers is protected by enclosing | |
84 | LOCK_SV_MUTEX; ... UNLOCK_SV_MUTEX calls which should Do the Right Thing | |
85 | if threads are enabled. | |
86 | ||
87 | The function visit() scans the SV arenas list, and calls a specified | |
88 | function for each SV it finds which is still live - ie which has an SvTYPE | |
89 | other than all 1's, and a non-zero SvREFCNT. visit() is used by the | |
90 | following functions (specified as [function that calls visit()] / [function | |
91 | called by visit() for each SV]): | |
92 | ||
93 | sv_report_used() / do_report_used() | |
94 | dump all remaining SVs (debugging aid) | |
95 | ||
96 | sv_clean_objs() / do_clean_objs(),do_clean_named_objs() | |
97 | Attempt to free all objects pointed to by RVs, | |
98 | and, unless DISABLE_DESTRUCTOR_KLUDGE is defined, | |
99 | try to do the same for all objects indirectly | |
100 | referenced by typeglobs too. Called once from | |
101 | perl_destruct(), prior to calling sv_clean_all() | |
102 | below. | |
103 | ||
104 | sv_clean_all() / do_clean_all() | |
105 | SvREFCNT_dec(sv) each remaining SV, possibly | |
106 | triggering an sv_free(). It also sets the | |
107 | SVf_BREAK flag on the SV to indicate that the | |
108 | refcnt has been artificially lowered, and thus | |
109 | stopping sv_free() from giving spurious warnings | |
110 | about SVs which unexpectedly have a refcnt | |
111 | of zero. called repeatedly from perl_destruct() | |
112 | until there are no SVs left. | |
113 | ||
114 | =head2 Summary | |
115 | ||
116 | Private API to rest of sv.c | |
117 | ||
118 | new_SV(), del_SV(), | |
119 | ||
120 | new_XIV(), del_XIV(), | |
121 | new_XNV(), del_XNV(), | |
122 | etc | |
123 | ||
124 | Public API: | |
125 | ||
8cf8f3d1 | 126 | sv_report_used(), sv_clean_objs(), sv_clean_all(), sv_free_arenas() |
645c22ef DM |
127 | |
128 | ||
129 | =cut | |
130 | ||
131 | ============================================================================ */ | |
132 | ||
133 | ||
51371543 | 134 | |
4561caa4 CS |
135 | /* |
136 | * "A time to plant, and a time to uproot what was planted..." | |
137 | */ | |
138 | ||
053fc874 GS |
139 | #define plant_SV(p) \ |
140 | STMT_START { \ | |
141 | SvANY(p) = (void *)PL_sv_root; \ | |
142 | SvFLAGS(p) = SVTYPEMASK; \ | |
143 | PL_sv_root = (p); \ | |
144 | --PL_sv_count; \ | |
145 | } STMT_END | |
a0d0e21e | 146 | |
fba3b22e | 147 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
148 | #define uproot_SV(p) \ |
149 | STMT_START { \ | |
150 | (p) = PL_sv_root; \ | |
151 | PL_sv_root = (SV*)SvANY(p); \ | |
152 | ++PL_sv_count; \ | |
153 | } STMT_END | |
154 | ||
645c22ef DM |
155 | |
156 | /* new_SV(): return a new, empty SV head */ | |
157 | ||
053fc874 GS |
158 | #define new_SV(p) \ |
159 | STMT_START { \ | |
160 | LOCK_SV_MUTEX; \ | |
161 | if (PL_sv_root) \ | |
162 | uproot_SV(p); \ | |
163 | else \ | |
164 | (p) = more_sv(); \ | |
165 | UNLOCK_SV_MUTEX; \ | |
166 | SvANY(p) = 0; \ | |
167 | SvREFCNT(p) = 1; \ | |
168 | SvFLAGS(p) = 0; \ | |
169 | } STMT_END | |
463ee0b2 | 170 | |
645c22ef DM |
171 | |
172 | /* del_SV(): return an empty SV head to the free list */ | |
173 | ||
a0d0e21e | 174 | #ifdef DEBUGGING |
4561caa4 | 175 | |
053fc874 GS |
176 | #define del_SV(p) \ |
177 | STMT_START { \ | |
178 | LOCK_SV_MUTEX; \ | |
aea4f609 | 179 | if (DEBUG_D_TEST) \ |
053fc874 GS |
180 | del_sv(p); \ |
181 | else \ | |
182 | plant_SV(p); \ | |
183 | UNLOCK_SV_MUTEX; \ | |
184 | } STMT_END | |
a0d0e21e | 185 | |
76e3520e | 186 | STATIC void |
cea2e8a9 | 187 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 188 | { |
aea4f609 | 189 | if (DEBUG_D_TEST) { |
4633a7c4 | 190 | SV* sva; |
a0d0e21e LW |
191 | SV* sv; |
192 | SV* svend; | |
193 | int ok = 0; | |
3280af22 | 194 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
195 | sv = sva + 1; |
196 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
197 | if (p >= sv && p < svend) |
198 | ok = 1; | |
199 | } | |
200 | if (!ok) { | |
0453d815 | 201 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 202 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
1d7c1841 GS |
203 | "Attempt to free non-arena SV: 0x%"UVxf, |
204 | PTR2UV(p)); | |
a0d0e21e LW |
205 | return; |
206 | } | |
207 | } | |
4561caa4 | 208 | plant_SV(p); |
463ee0b2 | 209 | } |
a0d0e21e | 210 | |
4561caa4 CS |
211 | #else /* ! DEBUGGING */ |
212 | ||
213 | #define del_SV(p) plant_SV(p) | |
214 | ||
215 | #endif /* DEBUGGING */ | |
463ee0b2 | 216 | |
645c22ef DM |
217 | |
218 | /* | |
ccfc67b7 JH |
219 | =head1 SV Manipulation Functions |
220 | ||
645c22ef DM |
221 | =for apidoc sv_add_arena |
222 | ||
223 | Given a chunk of memory, link it to the head of the list of arenas, | |
224 | and split it into a list of free SVs. | |
225 | ||
226 | =cut | |
227 | */ | |
228 | ||
4633a7c4 | 229 | void |
864dbfa3 | 230 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 231 | { |
4633a7c4 | 232 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
233 | register SV* sv; |
234 | register SV* svend; | |
14dd3ad8 | 235 | Zero(ptr, size, char); |
4633a7c4 LW |
236 | |
237 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 238 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
239 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
240 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
241 | ||
3280af22 NIS |
242 | PL_sv_arenaroot = sva; |
243 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
244 | |
245 | svend = &sva[SvREFCNT(sva) - 1]; | |
246 | sv = sva + 1; | |
463ee0b2 | 247 | while (sv < svend) { |
a0d0e21e | 248 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 | 249 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
250 | sv++; |
251 | } | |
252 | SvANY(sv) = 0; | |
4633a7c4 LW |
253 | SvFLAGS(sv) = SVTYPEMASK; |
254 | } | |
255 | ||
645c22ef DM |
256 | /* make some more SVs by adding another arena */ |
257 | ||
fba3b22e | 258 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 259 | STATIC SV* |
cea2e8a9 | 260 | S_more_sv(pTHX) |
4633a7c4 | 261 | { |
4561caa4 CS |
262 | register SV* sv; |
263 | ||
3280af22 NIS |
264 | if (PL_nice_chunk) { |
265 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
266 | PL_nice_chunk = Nullch; | |
30ad99e7 | 267 | PL_nice_chunk_size = 0; |
c07a80fd | 268 | } |
1edc1566 | 269 | else { |
270 | char *chunk; /* must use New here to match call to */ | |
271 | New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ | |
272 | sv_add_arena(chunk, 1008, 0); | |
273 | } | |
4561caa4 CS |
274 | uproot_SV(sv); |
275 | return sv; | |
463ee0b2 LW |
276 | } |
277 | ||
ff276b08 | 278 | /* visit(): call the named function for each non-free SV in the arenas. */ |
645c22ef | 279 | |
5226ed68 | 280 | STATIC I32 |
cea2e8a9 | 281 | S_visit(pTHX_ SVFUNC_t f) |
8990e307 | 282 | { |
4633a7c4 | 283 | SV* sva; |
8990e307 LW |
284 | SV* sv; |
285 | register SV* svend; | |
5226ed68 | 286 | I32 visited = 0; |
8990e307 | 287 | |
3280af22 | 288 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 289 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 | 290 | for (sv = sva + 1; sv < svend; ++sv) { |
f25c30a3 | 291 | if (SvTYPE(sv) != SVTYPEMASK && SvREFCNT(sv)) { |
acfe0abc | 292 | (FCALL)(aTHX_ sv); |
5226ed68 JH |
293 | ++visited; |
294 | } | |
8990e307 LW |
295 | } |
296 | } | |
5226ed68 | 297 | return visited; |
8990e307 LW |
298 | } |
299 | ||
758a08c3 JH |
300 | #ifdef DEBUGGING |
301 | ||
645c22ef DM |
302 | /* called by sv_report_used() for each live SV */ |
303 | ||
304 | static void | |
acfe0abc | 305 | do_report_used(pTHX_ SV *sv) |
645c22ef DM |
306 | { |
307 | if (SvTYPE(sv) != SVTYPEMASK) { | |
308 | PerlIO_printf(Perl_debug_log, "****\n"); | |
309 | sv_dump(sv); | |
310 | } | |
311 | } | |
758a08c3 | 312 | #endif |
645c22ef DM |
313 | |
314 | /* | |
315 | =for apidoc sv_report_used | |
316 | ||
317 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
318 | ||
319 | =cut | |
320 | */ | |
321 | ||
8990e307 | 322 | void |
864dbfa3 | 323 | Perl_sv_report_used(pTHX) |
4561caa4 | 324 | { |
ff270d3a | 325 | #ifdef DEBUGGING |
0b94c7bb | 326 | visit(do_report_used); |
ff270d3a | 327 | #endif |
4561caa4 CS |
328 | } |
329 | ||
645c22ef DM |
330 | /* called by sv_clean_objs() for each live SV */ |
331 | ||
332 | static void | |
acfe0abc | 333 | do_clean_objs(pTHX_ SV *sv) |
645c22ef DM |
334 | { |
335 | SV* rv; | |
336 | ||
337 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
338 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv))); | |
339 | if (SvWEAKREF(sv)) { | |
340 | sv_del_backref(sv); | |
341 | SvWEAKREF_off(sv); | |
342 | SvRV(sv) = 0; | |
343 | } else { | |
344 | SvROK_off(sv); | |
345 | SvRV(sv) = 0; | |
346 | SvREFCNT_dec(rv); | |
347 | } | |
348 | } | |
349 | ||
350 | /* XXX Might want to check arrays, etc. */ | |
351 | } | |
352 | ||
353 | /* called by sv_clean_objs() for each live SV */ | |
354 | ||
355 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
356 | static void | |
acfe0abc | 357 | do_clean_named_objs(pTHX_ SV *sv) |
645c22ef DM |
358 | { |
359 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
360 | if ( SvOBJECT(GvSV(sv)) || | |
361 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || | |
362 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
363 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
364 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
365 | { | |
366 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
367 | SvREFCNT_dec(sv); | |
368 | } | |
369 | } | |
370 | } | |
371 | #endif | |
372 | ||
373 | /* | |
374 | =for apidoc sv_clean_objs | |
375 | ||
376 | Attempt to destroy all objects not yet freed | |
377 | ||
378 | =cut | |
379 | */ | |
380 | ||
4561caa4 | 381 | void |
864dbfa3 | 382 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 383 | { |
3280af22 | 384 | PL_in_clean_objs = TRUE; |
0b94c7bb | 385 | visit(do_clean_objs); |
4561caa4 | 386 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 387 | /* some barnacles may yet remain, clinging to typeglobs */ |
0b94c7bb | 388 | visit(do_clean_named_objs); |
4561caa4 | 389 | #endif |
3280af22 | 390 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
391 | } |
392 | ||
645c22ef DM |
393 | /* called by sv_clean_all() for each live SV */ |
394 | ||
395 | static void | |
acfe0abc | 396 | do_clean_all(pTHX_ SV *sv) |
645c22ef DM |
397 | { |
398 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
399 | SvFLAGS(sv) |= SVf_BREAK; | |
400 | SvREFCNT_dec(sv); | |
401 | } | |
402 | ||
403 | /* | |
404 | =for apidoc sv_clean_all | |
405 | ||
406 | Decrement the refcnt of each remaining SV, possibly triggering a | |
407 | cleanup. This function may have to be called multiple times to free | |
ff276b08 | 408 | SVs which are in complex self-referential hierarchies. |
645c22ef DM |
409 | |
410 | =cut | |
411 | */ | |
412 | ||
5226ed68 | 413 | I32 |
864dbfa3 | 414 | Perl_sv_clean_all(pTHX) |
8990e307 | 415 | { |
5226ed68 | 416 | I32 cleaned; |
3280af22 | 417 | PL_in_clean_all = TRUE; |
5226ed68 | 418 | cleaned = visit(do_clean_all); |
3280af22 | 419 | PL_in_clean_all = FALSE; |
5226ed68 | 420 | return cleaned; |
8990e307 | 421 | } |
463ee0b2 | 422 | |
645c22ef DM |
423 | /* |
424 | =for apidoc sv_free_arenas | |
425 | ||
426 | Deallocate the memory used by all arenas. Note that all the individual SV | |
427 | heads and bodies within the arenas must already have been freed. | |
428 | ||
429 | =cut | |
430 | */ | |
431 | ||
4633a7c4 | 432 | void |
864dbfa3 | 433 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
434 | { |
435 | SV* sva; | |
436 | SV* svanext; | |
612f20c3 | 437 | XPV *arena, *arenanext; |
4633a7c4 LW |
438 | |
439 | /* Free arenas here, but be careful about fake ones. (We assume | |
440 | contiguity of the fake ones with the corresponding real ones.) */ | |
441 | ||
3280af22 | 442 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
443 | svanext = (SV*) SvANY(sva); |
444 | while (svanext && SvFAKE(svanext)) | |
445 | svanext = (SV*) SvANY(svanext); | |
446 | ||
447 | if (!SvFAKE(sva)) | |
1edc1566 | 448 | Safefree((void *)sva); |
4633a7c4 | 449 | } |
5f05dabc | 450 | |
612f20c3 GS |
451 | for (arena = PL_xiv_arenaroot; arena; arena = arenanext) { |
452 | arenanext = (XPV*)arena->xpv_pv; | |
453 | Safefree(arena); | |
454 | } | |
455 | PL_xiv_arenaroot = 0; | |
456 | ||
457 | for (arena = PL_xnv_arenaroot; arena; arena = arenanext) { | |
458 | arenanext = (XPV*)arena->xpv_pv; | |
459 | Safefree(arena); | |
460 | } | |
461 | PL_xnv_arenaroot = 0; | |
462 | ||
463 | for (arena = PL_xrv_arenaroot; arena; arena = arenanext) { | |
464 | arenanext = (XPV*)arena->xpv_pv; | |
465 | Safefree(arena); | |
466 | } | |
467 | PL_xrv_arenaroot = 0; | |
468 | ||
469 | for (arena = PL_xpv_arenaroot; arena; arena = arenanext) { | |
470 | arenanext = (XPV*)arena->xpv_pv; | |
471 | Safefree(arena); | |
472 | } | |
473 | PL_xpv_arenaroot = 0; | |
474 | ||
475 | for (arena = (XPV*)PL_xpviv_arenaroot; arena; arena = arenanext) { | |
476 | arenanext = (XPV*)arena->xpv_pv; | |
477 | Safefree(arena); | |
478 | } | |
479 | PL_xpviv_arenaroot = 0; | |
480 | ||
481 | for (arena = (XPV*)PL_xpvnv_arenaroot; arena; arena = arenanext) { | |
482 | arenanext = (XPV*)arena->xpv_pv; | |
483 | Safefree(arena); | |
484 | } | |
485 | PL_xpvnv_arenaroot = 0; | |
486 | ||
487 | for (arena = (XPV*)PL_xpvcv_arenaroot; arena; arena = arenanext) { | |
488 | arenanext = (XPV*)arena->xpv_pv; | |
489 | Safefree(arena); | |
490 | } | |
491 | PL_xpvcv_arenaroot = 0; | |
492 | ||
493 | for (arena = (XPV*)PL_xpvav_arenaroot; arena; arena = arenanext) { | |
494 | arenanext = (XPV*)arena->xpv_pv; | |
495 | Safefree(arena); | |
496 | } | |
497 | PL_xpvav_arenaroot = 0; | |
498 | ||
499 | for (arena = (XPV*)PL_xpvhv_arenaroot; arena; arena = arenanext) { | |
500 | arenanext = (XPV*)arena->xpv_pv; | |
501 | Safefree(arena); | |
502 | } | |
503 | PL_xpvhv_arenaroot = 0; | |
504 | ||
505 | for (arena = (XPV*)PL_xpvmg_arenaroot; arena; arena = arenanext) { | |
506 | arenanext = (XPV*)arena->xpv_pv; | |
507 | Safefree(arena); | |
508 | } | |
509 | PL_xpvmg_arenaroot = 0; | |
510 | ||
511 | for (arena = (XPV*)PL_xpvlv_arenaroot; arena; arena = arenanext) { | |
512 | arenanext = (XPV*)arena->xpv_pv; | |
513 | Safefree(arena); | |
514 | } | |
515 | PL_xpvlv_arenaroot = 0; | |
516 | ||
517 | for (arena = (XPV*)PL_xpvbm_arenaroot; arena; arena = arenanext) { | |
518 | arenanext = (XPV*)arena->xpv_pv; | |
519 | Safefree(arena); | |
520 | } | |
521 | PL_xpvbm_arenaroot = 0; | |
522 | ||
523 | for (arena = (XPV*)PL_he_arenaroot; arena; arena = arenanext) { | |
524 | arenanext = (XPV*)arena->xpv_pv; | |
525 | Safefree(arena); | |
526 | } | |
527 | PL_he_arenaroot = 0; | |
528 | ||
3280af22 NIS |
529 | if (PL_nice_chunk) |
530 | Safefree(PL_nice_chunk); | |
531 | PL_nice_chunk = Nullch; | |
532 | PL_nice_chunk_size = 0; | |
533 | PL_sv_arenaroot = 0; | |
534 | PL_sv_root = 0; | |
4633a7c4 LW |
535 | } |
536 | ||
645c22ef DM |
537 | /* |
538 | =for apidoc report_uninit | |
539 | ||
540 | Print appropriate "Use of uninitialized variable" warning | |
541 | ||
542 | =cut | |
543 | */ | |
544 | ||
1d7c1841 GS |
545 | void |
546 | Perl_report_uninit(pTHX) | |
547 | { | |
548 | if (PL_op) | |
9014280d | 549 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, |
53e06cf0 | 550 | " in ", OP_DESC(PL_op)); |
1d7c1841 | 551 | else |
9014280d | 552 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, "", ""); |
1d7c1841 GS |
553 | } |
554 | ||
645c22ef DM |
555 | /* grab a new IV body from the free list, allocating more if necessary */ |
556 | ||
76e3520e | 557 | STATIC XPVIV* |
cea2e8a9 | 558 | S_new_xiv(pTHX) |
463ee0b2 | 559 | { |
ea7c11a3 | 560 | IV* xiv; |
cbe51380 GS |
561 | LOCK_SV_MUTEX; |
562 | if (!PL_xiv_root) | |
563 | more_xiv(); | |
564 | xiv = PL_xiv_root; | |
565 | /* | |
566 | * See comment in more_xiv() -- RAM. | |
567 | */ | |
568 | PL_xiv_root = *(IV**)xiv; | |
569 | UNLOCK_SV_MUTEX; | |
570 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
571 | } |
572 | ||
645c22ef DM |
573 | /* return an IV body to the free list */ |
574 | ||
76e3520e | 575 | STATIC void |
cea2e8a9 | 576 | S_del_xiv(pTHX_ XPVIV *p) |
463ee0b2 | 577 | { |
23e6a22f | 578 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 579 | LOCK_SV_MUTEX; |
3280af22 NIS |
580 | *(IV**)xiv = PL_xiv_root; |
581 | PL_xiv_root = xiv; | |
cbe51380 | 582 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
583 | } |
584 | ||
645c22ef DM |
585 | /* allocate another arena's worth of IV bodies */ |
586 | ||
cbe51380 | 587 | STATIC void |
cea2e8a9 | 588 | S_more_xiv(pTHX) |
463ee0b2 | 589 | { |
ea7c11a3 SM |
590 | register IV* xiv; |
591 | register IV* xivend; | |
8c52afec IZ |
592 | XPV* ptr; |
593 | New(705, ptr, 1008/sizeof(XPV), XPV); | |
645c22ef | 594 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
3280af22 | 595 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ |
a0d0e21e | 596 | |
ea7c11a3 SM |
597 | xiv = (IV*) ptr; |
598 | xivend = &xiv[1008 / sizeof(IV) - 1]; | |
645c22ef | 599 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ |
3280af22 | 600 | PL_xiv_root = xiv; |
463ee0b2 | 601 | while (xiv < xivend) { |
ea7c11a3 | 602 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
603 | xiv++; |
604 | } | |
ea7c11a3 | 605 | *(IV**)xiv = 0; |
463ee0b2 LW |
606 | } |
607 | ||
645c22ef DM |
608 | /* grab a new NV body from the free list, allocating more if necessary */ |
609 | ||
76e3520e | 610 | STATIC XPVNV* |
cea2e8a9 | 611 | S_new_xnv(pTHX) |
463ee0b2 | 612 | { |
65202027 | 613 | NV* xnv; |
cbe51380 GS |
614 | LOCK_SV_MUTEX; |
615 | if (!PL_xnv_root) | |
616 | more_xnv(); | |
617 | xnv = PL_xnv_root; | |
65202027 | 618 | PL_xnv_root = *(NV**)xnv; |
cbe51380 GS |
619 | UNLOCK_SV_MUTEX; |
620 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
621 | } |
622 | ||
645c22ef DM |
623 | /* return an NV body to the free list */ |
624 | ||
76e3520e | 625 | STATIC void |
cea2e8a9 | 626 | S_del_xnv(pTHX_ XPVNV *p) |
463ee0b2 | 627 | { |
65202027 | 628 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 629 | LOCK_SV_MUTEX; |
65202027 | 630 | *(NV**)xnv = PL_xnv_root; |
3280af22 | 631 | PL_xnv_root = xnv; |
cbe51380 | 632 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
633 | } |
634 | ||
645c22ef DM |
635 | /* allocate another arena's worth of NV bodies */ |
636 | ||
cbe51380 | 637 | STATIC void |
cea2e8a9 | 638 | S_more_xnv(pTHX) |
463ee0b2 | 639 | { |
65202027 DS |
640 | register NV* xnv; |
641 | register NV* xnvend; | |
612f20c3 GS |
642 | XPV *ptr; |
643 | New(711, ptr, 1008/sizeof(XPV), XPV); | |
644 | ptr->xpv_pv = (char*)PL_xnv_arenaroot; | |
645 | PL_xnv_arenaroot = ptr; | |
646 | ||
647 | xnv = (NV*) ptr; | |
65202027 DS |
648 | xnvend = &xnv[1008 / sizeof(NV) - 1]; |
649 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ | |
3280af22 | 650 | PL_xnv_root = xnv; |
463ee0b2 | 651 | while (xnv < xnvend) { |
65202027 | 652 | *(NV**)xnv = (NV*)(xnv + 1); |
463ee0b2 LW |
653 | xnv++; |
654 | } | |
65202027 | 655 | *(NV**)xnv = 0; |
463ee0b2 LW |
656 | } |
657 | ||
645c22ef DM |
658 | /* grab a new struct xrv from the free list, allocating more if necessary */ |
659 | ||
76e3520e | 660 | STATIC XRV* |
cea2e8a9 | 661 | S_new_xrv(pTHX) |
ed6116ce LW |
662 | { |
663 | XRV* xrv; | |
cbe51380 GS |
664 | LOCK_SV_MUTEX; |
665 | if (!PL_xrv_root) | |
666 | more_xrv(); | |
667 | xrv = PL_xrv_root; | |
668 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
669 | UNLOCK_SV_MUTEX; | |
670 | return xrv; | |
ed6116ce LW |
671 | } |
672 | ||
645c22ef DM |
673 | /* return a struct xrv to the free list */ |
674 | ||
76e3520e | 675 | STATIC void |
cea2e8a9 | 676 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 677 | { |
cbe51380 | 678 | LOCK_SV_MUTEX; |
3280af22 NIS |
679 | p->xrv_rv = (SV*)PL_xrv_root; |
680 | PL_xrv_root = p; | |
cbe51380 | 681 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
682 | } |
683 | ||
645c22ef DM |
684 | /* allocate another arena's worth of struct xrv */ |
685 | ||
cbe51380 | 686 | STATIC void |
cea2e8a9 | 687 | S_more_xrv(pTHX) |
ed6116ce | 688 | { |
ed6116ce LW |
689 | register XRV* xrv; |
690 | register XRV* xrvend; | |
612f20c3 GS |
691 | XPV *ptr; |
692 | New(712, ptr, 1008/sizeof(XPV), XPV); | |
693 | ptr->xpv_pv = (char*)PL_xrv_arenaroot; | |
694 | PL_xrv_arenaroot = ptr; | |
695 | ||
696 | xrv = (XRV*) ptr; | |
ed6116ce | 697 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
612f20c3 GS |
698 | xrv += (sizeof(XPV) - 1) / sizeof(XRV) + 1; |
699 | PL_xrv_root = xrv; | |
ed6116ce LW |
700 | while (xrv < xrvend) { |
701 | xrv->xrv_rv = (SV*)(xrv + 1); | |
702 | xrv++; | |
703 | } | |
704 | xrv->xrv_rv = 0; | |
ed6116ce LW |
705 | } |
706 | ||
645c22ef DM |
707 | /* grab a new struct xpv from the free list, allocating more if necessary */ |
708 | ||
76e3520e | 709 | STATIC XPV* |
cea2e8a9 | 710 | S_new_xpv(pTHX) |
463ee0b2 LW |
711 | { |
712 | XPV* xpv; | |
cbe51380 GS |
713 | LOCK_SV_MUTEX; |
714 | if (!PL_xpv_root) | |
715 | more_xpv(); | |
716 | xpv = PL_xpv_root; | |
717 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
718 | UNLOCK_SV_MUTEX; | |
719 | return xpv; | |
463ee0b2 LW |
720 | } |
721 | ||
645c22ef DM |
722 | /* return a struct xpv to the free list */ |
723 | ||
76e3520e | 724 | STATIC void |
cea2e8a9 | 725 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 726 | { |
cbe51380 | 727 | LOCK_SV_MUTEX; |
3280af22 NIS |
728 | p->xpv_pv = (char*)PL_xpv_root; |
729 | PL_xpv_root = p; | |
cbe51380 | 730 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
731 | } |
732 | ||
645c22ef DM |
733 | /* allocate another arena's worth of struct xpv */ |
734 | ||
cbe51380 | 735 | STATIC void |
cea2e8a9 | 736 | S_more_xpv(pTHX) |
463ee0b2 | 737 | { |
463ee0b2 LW |
738 | register XPV* xpv; |
739 | register XPV* xpvend; | |
612f20c3 GS |
740 | New(713, xpv, 1008/sizeof(XPV), XPV); |
741 | xpv->xpv_pv = (char*)PL_xpv_arenaroot; | |
742 | PL_xpv_arenaroot = xpv; | |
743 | ||
463ee0b2 | 744 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
612f20c3 | 745 | PL_xpv_root = ++xpv; |
463ee0b2 LW |
746 | while (xpv < xpvend) { |
747 | xpv->xpv_pv = (char*)(xpv + 1); | |
748 | xpv++; | |
749 | } | |
750 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
751 | } |
752 | ||
645c22ef DM |
753 | /* grab a new struct xpviv from the free list, allocating more if necessary */ |
754 | ||
932e9ff9 VB |
755 | STATIC XPVIV* |
756 | S_new_xpviv(pTHX) | |
757 | { | |
758 | XPVIV* xpviv; | |
759 | LOCK_SV_MUTEX; | |
760 | if (!PL_xpviv_root) | |
761 | more_xpviv(); | |
762 | xpviv = PL_xpviv_root; | |
763 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
764 | UNLOCK_SV_MUTEX; | |
765 | return xpviv; | |
766 | } | |
767 | ||
645c22ef DM |
768 | /* return a struct xpviv to the free list */ |
769 | ||
932e9ff9 VB |
770 | STATIC void |
771 | S_del_xpviv(pTHX_ XPVIV *p) | |
772 | { | |
773 | LOCK_SV_MUTEX; | |
774 | p->xpv_pv = (char*)PL_xpviv_root; | |
775 | PL_xpviv_root = p; | |
776 | UNLOCK_SV_MUTEX; | |
777 | } | |
778 | ||
645c22ef DM |
779 | /* allocate another arena's worth of struct xpviv */ |
780 | ||
932e9ff9 VB |
781 | STATIC void |
782 | S_more_xpviv(pTHX) | |
783 | { | |
784 | register XPVIV* xpviv; | |
785 | register XPVIV* xpvivend; | |
612f20c3 GS |
786 | New(714, xpviv, 1008/sizeof(XPVIV), XPVIV); |
787 | xpviv->xpv_pv = (char*)PL_xpviv_arenaroot; | |
788 | PL_xpviv_arenaroot = xpviv; | |
789 | ||
932e9ff9 | 790 | xpvivend = &xpviv[1008 / sizeof(XPVIV) - 1]; |
612f20c3 | 791 | PL_xpviv_root = ++xpviv; |
932e9ff9 VB |
792 | while (xpviv < xpvivend) { |
793 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
794 | xpviv++; | |
795 | } | |
796 | xpviv->xpv_pv = 0; | |
797 | } | |
798 | ||
645c22ef DM |
799 | /* grab a new struct xpvnv from the free list, allocating more if necessary */ |
800 | ||
932e9ff9 VB |
801 | STATIC XPVNV* |
802 | S_new_xpvnv(pTHX) | |
803 | { | |
804 | XPVNV* xpvnv; | |
805 | LOCK_SV_MUTEX; | |
806 | if (!PL_xpvnv_root) | |
807 | more_xpvnv(); | |
808 | xpvnv = PL_xpvnv_root; | |
809 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
810 | UNLOCK_SV_MUTEX; | |
811 | return xpvnv; | |
812 | } | |
813 | ||
645c22ef DM |
814 | /* return a struct xpvnv to the free list */ |
815 | ||
932e9ff9 VB |
816 | STATIC void |
817 | S_del_xpvnv(pTHX_ XPVNV *p) | |
818 | { | |
819 | LOCK_SV_MUTEX; | |
820 | p->xpv_pv = (char*)PL_xpvnv_root; | |
821 | PL_xpvnv_root = p; | |
822 | UNLOCK_SV_MUTEX; | |
823 | } | |
824 | ||
645c22ef DM |
825 | /* allocate another arena's worth of struct xpvnv */ |
826 | ||
932e9ff9 VB |
827 | STATIC void |
828 | S_more_xpvnv(pTHX) | |
829 | { | |
830 | register XPVNV* xpvnv; | |
831 | register XPVNV* xpvnvend; | |
612f20c3 GS |
832 | New(715, xpvnv, 1008/sizeof(XPVNV), XPVNV); |
833 | xpvnv->xpv_pv = (char*)PL_xpvnv_arenaroot; | |
834 | PL_xpvnv_arenaroot = xpvnv; | |
835 | ||
932e9ff9 | 836 | xpvnvend = &xpvnv[1008 / sizeof(XPVNV) - 1]; |
612f20c3 | 837 | PL_xpvnv_root = ++xpvnv; |
932e9ff9 VB |
838 | while (xpvnv < xpvnvend) { |
839 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
840 | xpvnv++; | |
841 | } | |
842 | xpvnv->xpv_pv = 0; | |
843 | } | |
844 | ||
645c22ef DM |
845 | /* grab a new struct xpvcv from the free list, allocating more if necessary */ |
846 | ||
932e9ff9 VB |
847 | STATIC XPVCV* |
848 | S_new_xpvcv(pTHX) | |
849 | { | |
850 | XPVCV* xpvcv; | |
851 | LOCK_SV_MUTEX; | |
852 | if (!PL_xpvcv_root) | |
853 | more_xpvcv(); | |
854 | xpvcv = PL_xpvcv_root; | |
855 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
856 | UNLOCK_SV_MUTEX; | |
857 | return xpvcv; | |
858 | } | |
859 | ||
645c22ef DM |
860 | /* return a struct xpvcv to the free list */ |
861 | ||
932e9ff9 VB |
862 | STATIC void |
863 | S_del_xpvcv(pTHX_ XPVCV *p) | |
864 | { | |
865 | LOCK_SV_MUTEX; | |
866 | p->xpv_pv = (char*)PL_xpvcv_root; | |
867 | PL_xpvcv_root = p; | |
868 | UNLOCK_SV_MUTEX; | |
869 | } | |
870 | ||
645c22ef DM |
871 | /* allocate another arena's worth of struct xpvcv */ |
872 | ||
932e9ff9 VB |
873 | STATIC void |
874 | S_more_xpvcv(pTHX) | |
875 | { | |
876 | register XPVCV* xpvcv; | |
877 | register XPVCV* xpvcvend; | |
612f20c3 GS |
878 | New(716, xpvcv, 1008/sizeof(XPVCV), XPVCV); |
879 | xpvcv->xpv_pv = (char*)PL_xpvcv_arenaroot; | |
880 | PL_xpvcv_arenaroot = xpvcv; | |
881 | ||
932e9ff9 | 882 | xpvcvend = &xpvcv[1008 / sizeof(XPVCV) - 1]; |
612f20c3 | 883 | PL_xpvcv_root = ++xpvcv; |
932e9ff9 VB |
884 | while (xpvcv < xpvcvend) { |
885 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
886 | xpvcv++; | |
887 | } | |
888 | xpvcv->xpv_pv = 0; | |
889 | } | |
890 | ||
645c22ef DM |
891 | /* grab a new struct xpvav from the free list, allocating more if necessary */ |
892 | ||
932e9ff9 VB |
893 | STATIC XPVAV* |
894 | S_new_xpvav(pTHX) | |
895 | { | |
896 | XPVAV* xpvav; | |
897 | LOCK_SV_MUTEX; | |
898 | if (!PL_xpvav_root) | |
899 | more_xpvav(); | |
900 | xpvav = PL_xpvav_root; | |
901 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
902 | UNLOCK_SV_MUTEX; | |
903 | return xpvav; | |
904 | } | |
905 | ||
645c22ef DM |
906 | /* return a struct xpvav to the free list */ |
907 | ||
932e9ff9 VB |
908 | STATIC void |
909 | S_del_xpvav(pTHX_ XPVAV *p) | |
910 | { | |
911 | LOCK_SV_MUTEX; | |
912 | p->xav_array = (char*)PL_xpvav_root; | |
913 | PL_xpvav_root = p; | |
914 | UNLOCK_SV_MUTEX; | |
915 | } | |
916 | ||
645c22ef DM |
917 | /* allocate another arena's worth of struct xpvav */ |
918 | ||
932e9ff9 VB |
919 | STATIC void |
920 | S_more_xpvav(pTHX) | |
921 | { | |
922 | register XPVAV* xpvav; | |
923 | register XPVAV* xpvavend; | |
612f20c3 GS |
924 | New(717, xpvav, 1008/sizeof(XPVAV), XPVAV); |
925 | xpvav->xav_array = (char*)PL_xpvav_arenaroot; | |
926 | PL_xpvav_arenaroot = xpvav; | |
927 | ||
932e9ff9 | 928 | xpvavend = &xpvav[1008 / sizeof(XPVAV) - 1]; |
612f20c3 | 929 | PL_xpvav_root = ++xpvav; |
932e9ff9 VB |
930 | while (xpvav < xpvavend) { |
931 | xpvav->xav_array = (char*)(xpvav + 1); | |
932 | xpvav++; | |
933 | } | |
934 | xpvav->xav_array = 0; | |
935 | } | |
936 | ||
645c22ef DM |
937 | /* grab a new struct xpvhv from the free list, allocating more if necessary */ |
938 | ||
932e9ff9 VB |
939 | STATIC XPVHV* |
940 | S_new_xpvhv(pTHX) | |
941 | { | |
942 | XPVHV* xpvhv; | |
943 | LOCK_SV_MUTEX; | |
944 | if (!PL_xpvhv_root) | |
945 | more_xpvhv(); | |
946 | xpvhv = PL_xpvhv_root; | |
947 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
948 | UNLOCK_SV_MUTEX; | |
949 | return xpvhv; | |
950 | } | |
951 | ||
645c22ef DM |
952 | /* return a struct xpvhv to the free list */ |
953 | ||
932e9ff9 VB |
954 | STATIC void |
955 | S_del_xpvhv(pTHX_ XPVHV *p) | |
956 | { | |
957 | LOCK_SV_MUTEX; | |
958 | p->xhv_array = (char*)PL_xpvhv_root; | |
959 | PL_xpvhv_root = p; | |
960 | UNLOCK_SV_MUTEX; | |
961 | } | |
962 | ||
645c22ef DM |
963 | /* allocate another arena's worth of struct xpvhv */ |
964 | ||
932e9ff9 VB |
965 | STATIC void |
966 | S_more_xpvhv(pTHX) | |
967 | { | |
968 | register XPVHV* xpvhv; | |
969 | register XPVHV* xpvhvend; | |
612f20c3 GS |
970 | New(718, xpvhv, 1008/sizeof(XPVHV), XPVHV); |
971 | xpvhv->xhv_array = (char*)PL_xpvhv_arenaroot; | |
972 | PL_xpvhv_arenaroot = xpvhv; | |
973 | ||
932e9ff9 | 974 | xpvhvend = &xpvhv[1008 / sizeof(XPVHV) - 1]; |
612f20c3 | 975 | PL_xpvhv_root = ++xpvhv; |
932e9ff9 VB |
976 | while (xpvhv < xpvhvend) { |
977 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
978 | xpvhv++; | |
979 | } | |
980 | xpvhv->xhv_array = 0; | |
981 | } | |
982 | ||
645c22ef DM |
983 | /* grab a new struct xpvmg from the free list, allocating more if necessary */ |
984 | ||
932e9ff9 VB |
985 | STATIC XPVMG* |
986 | S_new_xpvmg(pTHX) | |
987 | { | |
988 | XPVMG* xpvmg; | |
989 | LOCK_SV_MUTEX; | |
990 | if (!PL_xpvmg_root) | |
991 | more_xpvmg(); | |
992 | xpvmg = PL_xpvmg_root; | |
993 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
994 | UNLOCK_SV_MUTEX; | |
995 | return xpvmg; | |
996 | } | |
997 | ||
645c22ef DM |
998 | /* return a struct xpvmg to the free list */ |
999 | ||
932e9ff9 VB |
1000 | STATIC void |
1001 | S_del_xpvmg(pTHX_ XPVMG *p) | |
1002 | { | |
1003 | LOCK_SV_MUTEX; | |
1004 | p->xpv_pv = (char*)PL_xpvmg_root; | |
1005 | PL_xpvmg_root = p; | |
1006 | UNLOCK_SV_MUTEX; | |
1007 | } | |
1008 | ||
645c22ef DM |
1009 | /* allocate another arena's worth of struct xpvmg */ |
1010 | ||
932e9ff9 VB |
1011 | STATIC void |
1012 | S_more_xpvmg(pTHX) | |
1013 | { | |
1014 | register XPVMG* xpvmg; | |
1015 | register XPVMG* xpvmgend; | |
612f20c3 GS |
1016 | New(719, xpvmg, 1008/sizeof(XPVMG), XPVMG); |
1017 | xpvmg->xpv_pv = (char*)PL_xpvmg_arenaroot; | |
1018 | PL_xpvmg_arenaroot = xpvmg; | |
1019 | ||
932e9ff9 | 1020 | xpvmgend = &xpvmg[1008 / sizeof(XPVMG) - 1]; |
612f20c3 | 1021 | PL_xpvmg_root = ++xpvmg; |
932e9ff9 VB |
1022 | while (xpvmg < xpvmgend) { |
1023 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
1024 | xpvmg++; | |
1025 | } | |
1026 | xpvmg->xpv_pv = 0; | |
1027 | } | |
1028 | ||
645c22ef DM |
1029 | /* grab a new struct xpvlv from the free list, allocating more if necessary */ |
1030 | ||
932e9ff9 VB |
1031 | STATIC XPVLV* |
1032 | S_new_xpvlv(pTHX) | |
1033 | { | |
1034 | XPVLV* xpvlv; | |
1035 | LOCK_SV_MUTEX; | |
1036 | if (!PL_xpvlv_root) | |
1037 | more_xpvlv(); | |
1038 | xpvlv = PL_xpvlv_root; | |
1039 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
1040 | UNLOCK_SV_MUTEX; | |
1041 | return xpvlv; | |
1042 | } | |
1043 | ||
645c22ef DM |
1044 | /* return a struct xpvlv to the free list */ |
1045 | ||
932e9ff9 VB |
1046 | STATIC void |
1047 | S_del_xpvlv(pTHX_ XPVLV *p) | |
1048 | { | |
1049 | LOCK_SV_MUTEX; | |
1050 | p->xpv_pv = (char*)PL_xpvlv_root; | |
1051 | PL_xpvlv_root = p; | |
1052 | UNLOCK_SV_MUTEX; | |
1053 | } | |
1054 | ||
645c22ef DM |
1055 | /* allocate another arena's worth of struct xpvlv */ |
1056 | ||
932e9ff9 VB |
1057 | STATIC void |
1058 | S_more_xpvlv(pTHX) | |
1059 | { | |
1060 | register XPVLV* xpvlv; | |
1061 | register XPVLV* xpvlvend; | |
612f20c3 GS |
1062 | New(720, xpvlv, 1008/sizeof(XPVLV), XPVLV); |
1063 | xpvlv->xpv_pv = (char*)PL_xpvlv_arenaroot; | |
1064 | PL_xpvlv_arenaroot = xpvlv; | |
1065 | ||
932e9ff9 | 1066 | xpvlvend = &xpvlv[1008 / sizeof(XPVLV) - 1]; |
612f20c3 | 1067 | PL_xpvlv_root = ++xpvlv; |
932e9ff9 VB |
1068 | while (xpvlv < xpvlvend) { |
1069 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
1070 | xpvlv++; | |
1071 | } | |
1072 | xpvlv->xpv_pv = 0; | |
1073 | } | |
1074 | ||
645c22ef DM |
1075 | /* grab a new struct xpvbm from the free list, allocating more if necessary */ |
1076 | ||
932e9ff9 VB |
1077 | STATIC XPVBM* |
1078 | S_new_xpvbm(pTHX) | |
1079 | { | |
1080 | XPVBM* xpvbm; | |
1081 | LOCK_SV_MUTEX; | |
1082 | if (!PL_xpvbm_root) | |
1083 | more_xpvbm(); | |
1084 | xpvbm = PL_xpvbm_root; | |
1085 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
1086 | UNLOCK_SV_MUTEX; | |
1087 | return xpvbm; | |
1088 | } | |
1089 | ||
645c22ef DM |
1090 | /* return a struct xpvbm to the free list */ |
1091 | ||
932e9ff9 VB |
1092 | STATIC void |
1093 | S_del_xpvbm(pTHX_ XPVBM *p) | |
1094 | { | |
1095 | LOCK_SV_MUTEX; | |
1096 | p->xpv_pv = (char*)PL_xpvbm_root; | |
1097 | PL_xpvbm_root = p; | |
1098 | UNLOCK_SV_MUTEX; | |
1099 | } | |
1100 | ||
645c22ef DM |
1101 | /* allocate another arena's worth of struct xpvbm */ |
1102 | ||
932e9ff9 VB |
1103 | STATIC void |
1104 | S_more_xpvbm(pTHX) | |
1105 | { | |
1106 | register XPVBM* xpvbm; | |
1107 | register XPVBM* xpvbmend; | |
612f20c3 GS |
1108 | New(721, xpvbm, 1008/sizeof(XPVBM), XPVBM); |
1109 | xpvbm->xpv_pv = (char*)PL_xpvbm_arenaroot; | |
1110 | PL_xpvbm_arenaroot = xpvbm; | |
1111 | ||
932e9ff9 | 1112 | xpvbmend = &xpvbm[1008 / sizeof(XPVBM) - 1]; |
612f20c3 | 1113 | PL_xpvbm_root = ++xpvbm; |
932e9ff9 VB |
1114 | while (xpvbm < xpvbmend) { |
1115 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
1116 | xpvbm++; | |
1117 | } | |
1118 | xpvbm->xpv_pv = 0; | |
1119 | } | |
1120 | ||
d33b2eba GS |
1121 | #ifdef LEAKTEST |
1122 | # define my_safemalloc(s) (void*)safexmalloc(717,s) | |
1123 | # define my_safefree(p) safexfree((char*)p) | |
1124 | #else | |
1125 | # define my_safemalloc(s) (void*)safemalloc(s) | |
1126 | # define my_safefree(p) safefree((char*)p) | |
1127 | #endif | |
463ee0b2 | 1128 | |
d33b2eba | 1129 | #ifdef PURIFY |
463ee0b2 | 1130 | |
d33b2eba GS |
1131 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
1132 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 1133 | |
d33b2eba GS |
1134 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1135 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1136 | |
d33b2eba GS |
1137 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
1138 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 1139 | |
d33b2eba GS |
1140 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1141 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1142 | |
d33b2eba GS |
1143 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1144 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1145 | |
d33b2eba GS |
1146 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1147 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1148 | |
d33b2eba GS |
1149 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1150 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1151 | |
d33b2eba GS |
1152 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1153 | #define del_XPVAV(p) my_safefree(p) | |
1154 | ||
1155 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1156 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1157 | |
d33b2eba GS |
1158 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1159 | #define del_XPVMG(p) my_safefree(p) | |
1160 | ||
1161 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) | |
1162 | #define del_XPVLV(p) my_safefree(p) | |
1163 | ||
1164 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1165 | #define del_XPVBM(p) my_safefree(p) | |
1166 | ||
1167 | #else /* !PURIFY */ | |
1168 | ||
1169 | #define new_XIV() (void*)new_xiv() | |
1170 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
1171 | ||
1172 | #define new_XNV() (void*)new_xnv() | |
1173 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 1174 | |
d33b2eba GS |
1175 | #define new_XRV() (void*)new_xrv() |
1176 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 1177 | |
d33b2eba GS |
1178 | #define new_XPV() (void*)new_xpv() |
1179 | #define del_XPV(p) del_xpv((XPV *)p) | |
1180 | ||
1181 | #define new_XPVIV() (void*)new_xpviv() | |
1182 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
1183 | ||
1184 | #define new_XPVNV() (void*)new_xpvnv() | |
1185 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
1186 | ||
1187 | #define new_XPVCV() (void*)new_xpvcv() | |
1188 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
1189 | ||
1190 | #define new_XPVAV() (void*)new_xpvav() | |
1191 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
1192 | ||
1193 | #define new_XPVHV() (void*)new_xpvhv() | |
1194 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
1c846c1f | 1195 | |
d33b2eba GS |
1196 | #define new_XPVMG() (void*)new_xpvmg() |
1197 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
1198 | ||
1199 | #define new_XPVLV() (void*)new_xpvlv() | |
1200 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
1201 | ||
1202 | #define new_XPVBM() (void*)new_xpvbm() | |
1203 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
1204 | ||
1205 | #endif /* PURIFY */ | |
9b94d1dd | 1206 | |
d33b2eba GS |
1207 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1208 | #define del_XPVGV(p) my_safefree(p) | |
1c846c1f | 1209 | |
d33b2eba GS |
1210 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1211 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1212 | |
d33b2eba GS |
1213 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1214 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1215 | |
954c1994 GS |
1216 | /* |
1217 | =for apidoc sv_upgrade | |
1218 | ||
ff276b08 | 1219 | Upgrade an SV to a more complex form. Generally adds a new body type to the |
645c22ef | 1220 | SV, then copies across as much information as possible from the old body. |
ff276b08 | 1221 | You generally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. |
954c1994 GS |
1222 | |
1223 | =cut | |
1224 | */ | |
1225 | ||
79072805 | 1226 | bool |
864dbfa3 | 1227 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 | 1228 | { |
c04a4dfe JH |
1229 | char* pv = NULL; |
1230 | U32 cur = 0; | |
1231 | U32 len = 0; | |
1232 | IV iv = 0; | |
1233 | NV nv = 0.0; | |
1234 | MAGIC* magic = NULL; | |
1235 | HV* stash = Nullhv; | |
79072805 | 1236 | |
f130fd45 NIS |
1237 | if (mt != SVt_PV && SvREADONLY(sv) && SvFAKE(sv)) { |
1238 | sv_force_normal(sv); | |
1239 | } | |
1240 | ||
79072805 LW |
1241 | if (SvTYPE(sv) == mt) |
1242 | return TRUE; | |
1243 | ||
a5f75d66 AD |
1244 | if (mt < SVt_PVIV) |
1245 | (void)SvOOK_off(sv); | |
1246 | ||
79072805 LW |
1247 | switch (SvTYPE(sv)) { |
1248 | case SVt_NULL: | |
1249 | pv = 0; | |
1250 | cur = 0; | |
1251 | len = 0; | |
1252 | iv = 0; | |
1253 | nv = 0.0; | |
1254 | magic = 0; | |
1255 | stash = 0; | |
1256 | break; | |
79072805 LW |
1257 | case SVt_IV: |
1258 | pv = 0; | |
1259 | cur = 0; | |
1260 | len = 0; | |
463ee0b2 | 1261 | iv = SvIVX(sv); |
65202027 | 1262 | nv = (NV)SvIVX(sv); |
79072805 LW |
1263 | del_XIV(SvANY(sv)); |
1264 | magic = 0; | |
1265 | stash = 0; | |
ed6116ce | 1266 | if (mt == SVt_NV) |
463ee0b2 | 1267 | mt = SVt_PVNV; |
ed6116ce LW |
1268 | else if (mt < SVt_PVIV) |
1269 | mt = SVt_PVIV; | |
79072805 LW |
1270 | break; |
1271 | case SVt_NV: | |
1272 | pv = 0; | |
1273 | cur = 0; | |
1274 | len = 0; | |
463ee0b2 | 1275 | nv = SvNVX(sv); |
1bd302c3 | 1276 | iv = I_V(nv); |
79072805 LW |
1277 | magic = 0; |
1278 | stash = 0; | |
1279 | del_XNV(SvANY(sv)); | |
1280 | SvANY(sv) = 0; | |
ed6116ce | 1281 | if (mt < SVt_PVNV) |
79072805 LW |
1282 | mt = SVt_PVNV; |
1283 | break; | |
ed6116ce LW |
1284 | case SVt_RV: |
1285 | pv = (char*)SvRV(sv); | |
1286 | cur = 0; | |
1287 | len = 0; | |
56431972 RB |
1288 | iv = PTR2IV(pv); |
1289 | nv = PTR2NV(pv); | |
ed6116ce LW |
1290 | del_XRV(SvANY(sv)); |
1291 | magic = 0; | |
1292 | stash = 0; | |
1293 | break; | |
79072805 | 1294 | case SVt_PV: |
463ee0b2 | 1295 | pv = SvPVX(sv); |
79072805 LW |
1296 | cur = SvCUR(sv); |
1297 | len = SvLEN(sv); | |
1298 | iv = 0; | |
1299 | nv = 0.0; | |
1300 | magic = 0; | |
1301 | stash = 0; | |
1302 | del_XPV(SvANY(sv)); | |
748a9306 LW |
1303 | if (mt <= SVt_IV) |
1304 | mt = SVt_PVIV; | |
1305 | else if (mt == SVt_NV) | |
1306 | mt = SVt_PVNV; | |
79072805 LW |
1307 | break; |
1308 | case SVt_PVIV: | |
463ee0b2 | 1309 | pv = SvPVX(sv); |
79072805 LW |
1310 | cur = SvCUR(sv); |
1311 | len = SvLEN(sv); | |
463ee0b2 | 1312 | iv = SvIVX(sv); |
79072805 LW |
1313 | nv = 0.0; |
1314 | magic = 0; | |
1315 | stash = 0; | |
1316 | del_XPVIV(SvANY(sv)); | |
1317 | break; | |
1318 | case SVt_PVNV: | |
463ee0b2 | 1319 | pv = SvPVX(sv); |
79072805 LW |
1320 | cur = SvCUR(sv); |
1321 | len = SvLEN(sv); | |
463ee0b2 LW |
1322 | iv = SvIVX(sv); |
1323 | nv = SvNVX(sv); | |
79072805 LW |
1324 | magic = 0; |
1325 | stash = 0; | |
1326 | del_XPVNV(SvANY(sv)); | |
1327 | break; | |
1328 | case SVt_PVMG: | |
463ee0b2 | 1329 | pv = SvPVX(sv); |
79072805 LW |
1330 | cur = SvCUR(sv); |
1331 | len = SvLEN(sv); | |
463ee0b2 LW |
1332 | iv = SvIVX(sv); |
1333 | nv = SvNVX(sv); | |
79072805 LW |
1334 | magic = SvMAGIC(sv); |
1335 | stash = SvSTASH(sv); | |
1336 | del_XPVMG(SvANY(sv)); | |
1337 | break; | |
1338 | default: | |
cea2e8a9 | 1339 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1340 | } |
1341 | ||
1342 | switch (mt) { | |
1343 | case SVt_NULL: | |
cea2e8a9 | 1344 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1345 | case SVt_IV: |
1346 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 1347 | SvIVX(sv) = iv; |
79072805 LW |
1348 | break; |
1349 | case SVt_NV: | |
1350 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 1351 | SvNVX(sv) = nv; |
79072805 | 1352 | break; |
ed6116ce LW |
1353 | case SVt_RV: |
1354 | SvANY(sv) = new_XRV(); | |
1355 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 1356 | break; |
79072805 LW |
1357 | case SVt_PV: |
1358 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 1359 | SvPVX(sv) = pv; |
79072805 LW |
1360 | SvCUR(sv) = cur; |
1361 | SvLEN(sv) = len; | |
1362 | break; | |
1363 | case SVt_PVIV: | |
1364 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 1365 | SvPVX(sv) = pv; |
79072805 LW |
1366 | SvCUR(sv) = cur; |
1367 | SvLEN(sv) = len; | |
463ee0b2 | 1368 | SvIVX(sv) = iv; |
79072805 | 1369 | if (SvNIOK(sv)) |
a0d0e21e | 1370 | (void)SvIOK_on(sv); |
79072805 LW |
1371 | SvNOK_off(sv); |
1372 | break; | |
1373 | case SVt_PVNV: | |
1374 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 1375 | SvPVX(sv) = pv; |
79072805 LW |
1376 | SvCUR(sv) = cur; |
1377 | SvLEN(sv) = len; | |
463ee0b2 LW |
1378 | SvIVX(sv) = iv; |
1379 | SvNVX(sv) = nv; | |
79072805 LW |
1380 | break; |
1381 | case SVt_PVMG: | |
1382 | SvANY(sv) = new_XPVMG(); | |
463ee0b2 | 1383 | SvPVX(sv) = pv; |
79072805 LW |
1384 | SvCUR(sv) = cur; |
1385 | SvLEN(sv) = len; | |
463ee0b2 LW |
1386 | SvIVX(sv) = iv; |
1387 | SvNVX(sv) = nv; | |
79072805 LW |
1388 | SvMAGIC(sv) = magic; |
1389 | SvSTASH(sv) = stash; | |
1390 | break; | |
1391 | case SVt_PVLV: | |
1392 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 1393 | SvPVX(sv) = pv; |
79072805 LW |
1394 | SvCUR(sv) = cur; |
1395 | SvLEN(sv) = len; | |
463ee0b2 LW |
1396 | SvIVX(sv) = iv; |
1397 | SvNVX(sv) = nv; | |
79072805 LW |
1398 | SvMAGIC(sv) = magic; |
1399 | SvSTASH(sv) = stash; | |
1400 | LvTARGOFF(sv) = 0; | |
1401 | LvTARGLEN(sv) = 0; | |
1402 | LvTARG(sv) = 0; | |
1403 | LvTYPE(sv) = 0; | |
1404 | break; | |
1405 | case SVt_PVAV: | |
1406 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
1407 | if (pv) |
1408 | Safefree(pv); | |
2304df62 | 1409 | SvPVX(sv) = 0; |
d1bf51dd | 1410 | AvMAX(sv) = -1; |
93965878 | 1411 | AvFILLp(sv) = -1; |
463ee0b2 LW |
1412 | SvIVX(sv) = 0; |
1413 | SvNVX(sv) = 0.0; | |
1414 | SvMAGIC(sv) = magic; | |
1415 | SvSTASH(sv) = stash; | |
1416 | AvALLOC(sv) = 0; | |
79072805 LW |
1417 | AvARYLEN(sv) = 0; |
1418 | AvFLAGS(sv) = 0; | |
1419 | break; | |
1420 | case SVt_PVHV: | |
1421 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1422 | if (pv) |
1423 | Safefree(pv); | |
1424 | SvPVX(sv) = 0; | |
1425 | HvFILL(sv) = 0; | |
1426 | HvMAX(sv) = 0; | |
8aacddc1 NIS |
1427 | HvTOTALKEYS(sv) = 0; |
1428 | HvPLACEHOLDERS(sv) = 0; | |
79072805 LW |
1429 | SvMAGIC(sv) = magic; |
1430 | SvSTASH(sv) = stash; | |
79072805 LW |
1431 | HvRITER(sv) = 0; |
1432 | HvEITER(sv) = 0; | |
1433 | HvPMROOT(sv) = 0; | |
1434 | HvNAME(sv) = 0; | |
79072805 LW |
1435 | break; |
1436 | case SVt_PVCV: | |
1437 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1438 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 1439 | SvPVX(sv) = pv; |
79072805 LW |
1440 | SvCUR(sv) = cur; |
1441 | SvLEN(sv) = len; | |
463ee0b2 LW |
1442 | SvIVX(sv) = iv; |
1443 | SvNVX(sv) = nv; | |
79072805 LW |
1444 | SvMAGIC(sv) = magic; |
1445 | SvSTASH(sv) = stash; | |
79072805 LW |
1446 | break; |
1447 | case SVt_PVGV: | |
1448 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 1449 | SvPVX(sv) = pv; |
79072805 LW |
1450 | SvCUR(sv) = cur; |
1451 | SvLEN(sv) = len; | |
463ee0b2 LW |
1452 | SvIVX(sv) = iv; |
1453 | SvNVX(sv) = nv; | |
79072805 LW |
1454 | SvMAGIC(sv) = magic; |
1455 | SvSTASH(sv) = stash; | |
93a17b20 | 1456 | GvGP(sv) = 0; |
79072805 LW |
1457 | GvNAME(sv) = 0; |
1458 | GvNAMELEN(sv) = 0; | |
1459 | GvSTASH(sv) = 0; | |
a5f75d66 | 1460 | GvFLAGS(sv) = 0; |
79072805 LW |
1461 | break; |
1462 | case SVt_PVBM: | |
1463 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 1464 | SvPVX(sv) = pv; |
79072805 LW |
1465 | SvCUR(sv) = cur; |
1466 | SvLEN(sv) = len; | |
463ee0b2 LW |
1467 | SvIVX(sv) = iv; |
1468 | SvNVX(sv) = nv; | |
79072805 LW |
1469 | SvMAGIC(sv) = magic; |
1470 | SvSTASH(sv) = stash; | |
1471 | BmRARE(sv) = 0; | |
1472 | BmUSEFUL(sv) = 0; | |
1473 | BmPREVIOUS(sv) = 0; | |
1474 | break; | |
1475 | case SVt_PVFM: | |
1476 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1477 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 1478 | SvPVX(sv) = pv; |
79072805 LW |
1479 | SvCUR(sv) = cur; |
1480 | SvLEN(sv) = len; | |
463ee0b2 LW |
1481 | SvIVX(sv) = iv; |
1482 | SvNVX(sv) = nv; | |
79072805 LW |
1483 | SvMAGIC(sv) = magic; |
1484 | SvSTASH(sv) = stash; | |
79072805 | 1485 | break; |
8990e307 LW |
1486 | case SVt_PVIO: |
1487 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1488 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
1489 | SvPVX(sv) = pv; |
1490 | SvCUR(sv) = cur; | |
1491 | SvLEN(sv) = len; | |
1492 | SvIVX(sv) = iv; | |
1493 | SvNVX(sv) = nv; | |
1494 | SvMAGIC(sv) = magic; | |
1495 | SvSTASH(sv) = stash; | |
85e6fe83 | 1496 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1497 | break; |
1498 | } | |
1499 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
1500 | SvFLAGS(sv) |= mt; | |
79072805 LW |
1501 | return TRUE; |
1502 | } | |
1503 | ||
645c22ef DM |
1504 | /* |
1505 | =for apidoc sv_backoff | |
1506 | ||
1507 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1508 | wrapper instead. | |
1509 | ||
1510 | =cut | |
1511 | */ | |
1512 | ||
79072805 | 1513 | int |
864dbfa3 | 1514 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1515 | { |
1516 | assert(SvOOK(sv)); | |
463ee0b2 LW |
1517 | if (SvIVX(sv)) { |
1518 | char *s = SvPVX(sv); | |
1519 | SvLEN(sv) += SvIVX(sv); | |
1520 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 1521 | SvIV_set(sv, 0); |
463ee0b2 | 1522 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1523 | } |
1524 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1525 | return 0; |
79072805 LW |
1526 | } |
1527 | ||
954c1994 GS |
1528 | /* |
1529 | =for apidoc sv_grow | |
1530 | ||
645c22ef DM |
1531 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1532 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1533 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1534 | |
1535 | =cut | |
1536 | */ | |
1537 | ||
79072805 | 1538 | char * |
864dbfa3 | 1539 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1540 | { |
1541 | register char *s; | |
1542 | ||
54f0641b NIS |
1543 | |
1544 | ||
55497cff | 1545 | #ifdef HAS_64K_LIMIT |
79072805 | 1546 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1547 | PerlIO_printf(Perl_debug_log, |
1548 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1549 | my_exit(1); |
1550 | } | |
55497cff | 1551 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1552 | if (SvROK(sv)) |
1553 | sv_unref(sv); | |
79072805 LW |
1554 | if (SvTYPE(sv) < SVt_PV) { |
1555 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 1556 | s = SvPVX(sv); |
79072805 LW |
1557 | } |
1558 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1559 | sv_backoff(sv); | |
463ee0b2 | 1560 | s = SvPVX(sv); |
79072805 LW |
1561 | if (newlen > SvLEN(sv)) |
1562 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1563 | #ifdef HAS_64K_LIMIT |
1564 | if (newlen >= 0x10000) | |
1565 | newlen = 0xFFFF; | |
1566 | #endif | |
79072805 LW |
1567 | } |
1568 | else | |
463ee0b2 | 1569 | s = SvPVX(sv); |
54f0641b | 1570 | |
79072805 | 1571 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 1572 | if (SvLEN(sv) && s) { |
f5a32c7f | 1573 | #if defined(MYMALLOC) && !defined(LEAKTEST) |
8d6dde3e IZ |
1574 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
1575 | if (newlen <= l) { | |
1576 | SvLEN_set(sv, l); | |
1577 | return s; | |
1578 | } else | |
c70c8a0a | 1579 | #endif |
79072805 | 1580 | Renew(s,newlen,char); |
8d6dde3e | 1581 | } |
4e83176d | 1582 | else { |
ee5f0761 AMS |
1583 | /* sv_force_normal_flags() must not try to unshare the new |
1584 | PVX we allocate below. AMS 20010713 */ | |
4e83176d | 1585 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
4e83176d AMS |
1586 | SvFAKE_off(sv); |
1587 | SvREADONLY_off(sv); | |
4e83176d AMS |
1588 | } |
1589 | New(703, s, newlen, char); | |
40565179 | 1590 | if (SvPVX(sv) && SvCUR(sv)) { |
54f0641b | 1591 | Move(SvPVX(sv), s, (newlen < SvCUR(sv)) ? newlen : SvCUR(sv), char); |
40565179 | 1592 | } |
4e83176d | 1593 | } |
79072805 LW |
1594 | SvPV_set(sv, s); |
1595 | SvLEN_set(sv, newlen); | |
1596 | } | |
1597 | return s; | |
1598 | } | |
1599 | ||
954c1994 GS |
1600 | /* |
1601 | =for apidoc sv_setiv | |
1602 | ||
645c22ef DM |
1603 | Copies an integer into the given SV, upgrading first if necessary. |
1604 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1605 | |
1606 | =cut | |
1607 | */ | |
1608 | ||
79072805 | 1609 | void |
864dbfa3 | 1610 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1611 | { |
2213622d | 1612 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
1613 | switch (SvTYPE(sv)) { |
1614 | case SVt_NULL: | |
79072805 | 1615 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1616 | break; |
1617 | case SVt_NV: | |
1618 | sv_upgrade(sv, SVt_PVNV); | |
1619 | break; | |
ed6116ce | 1620 | case SVt_RV: |
463ee0b2 | 1621 | case SVt_PV: |
79072805 | 1622 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1623 | break; |
a0d0e21e LW |
1624 | |
1625 | case SVt_PVGV: | |
a0d0e21e LW |
1626 | case SVt_PVAV: |
1627 | case SVt_PVHV: | |
1628 | case SVt_PVCV: | |
1629 | case SVt_PVFM: | |
1630 | case SVt_PVIO: | |
411caa50 | 1631 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
53e06cf0 | 1632 | OP_DESC(PL_op)); |
463ee0b2 | 1633 | } |
a0d0e21e | 1634 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1635 | SvIVX(sv) = i; |
463ee0b2 | 1636 | SvTAINT(sv); |
79072805 LW |
1637 | } |
1638 | ||
954c1994 GS |
1639 | /* |
1640 | =for apidoc sv_setiv_mg | |
1641 | ||
1642 | Like C<sv_setiv>, but also handles 'set' magic. | |
1643 | ||
1644 | =cut | |
1645 | */ | |
1646 | ||
79072805 | 1647 | void |
864dbfa3 | 1648 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1649 | { |
1650 | sv_setiv(sv,i); | |
1651 | SvSETMAGIC(sv); | |
1652 | } | |
1653 | ||
954c1994 GS |
1654 | /* |
1655 | =for apidoc sv_setuv | |
1656 | ||
645c22ef DM |
1657 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1658 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1659 | |
1660 | =cut | |
1661 | */ | |
1662 | ||
ef50df4b | 1663 | void |
864dbfa3 | 1664 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1665 | { |
55ada374 NC |
1666 | /* With these two if statements: |
1667 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1668 | |
55ada374 NC |
1669 | without |
1670 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1671 | |
55ada374 NC |
1672 | If you wish to remove them, please benchmark to see what the effect is |
1673 | */ | |
28e5dec8 JH |
1674 | if (u <= (UV)IV_MAX) { |
1675 | sv_setiv(sv, (IV)u); | |
1676 | return; | |
1677 | } | |
25da4f38 IZ |
1678 | sv_setiv(sv, 0); |
1679 | SvIsUV_on(sv); | |
1680 | SvUVX(sv) = u; | |
55497cff | 1681 | } |
1682 | ||
954c1994 GS |
1683 | /* |
1684 | =for apidoc sv_setuv_mg | |
1685 | ||
1686 | Like C<sv_setuv>, but also handles 'set' magic. | |
1687 | ||
1688 | =cut | |
1689 | */ | |
1690 | ||
55497cff | 1691 | void |
864dbfa3 | 1692 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1693 | { |
55ada374 NC |
1694 | /* With these two if statements: |
1695 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1696 | |
55ada374 NC |
1697 | without |
1698 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1699 | |
55ada374 NC |
1700 | If you wish to remove them, please benchmark to see what the effect is |
1701 | */ | |
28e5dec8 JH |
1702 | if (u <= (UV)IV_MAX) { |
1703 | sv_setiv(sv, (IV)u); | |
1704 | } else { | |
1705 | sv_setiv(sv, 0); | |
1706 | SvIsUV_on(sv); | |
1707 | sv_setuv(sv,u); | |
1708 | } | |
ef50df4b GS |
1709 | SvSETMAGIC(sv); |
1710 | } | |
1711 | ||
954c1994 GS |
1712 | /* |
1713 | =for apidoc sv_setnv | |
1714 | ||
645c22ef DM |
1715 | Copies a double into the given SV, upgrading first if necessary. |
1716 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1717 | |
1718 | =cut | |
1719 | */ | |
1720 | ||
ef50df4b | 1721 | void |
65202027 | 1722 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1723 | { |
2213622d | 1724 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1725 | switch (SvTYPE(sv)) { |
1726 | case SVt_NULL: | |
1727 | case SVt_IV: | |
79072805 | 1728 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1729 | break; |
a0d0e21e LW |
1730 | case SVt_RV: |
1731 | case SVt_PV: | |
1732 | case SVt_PVIV: | |
79072805 | 1733 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1734 | break; |
827b7e14 | 1735 | |
a0d0e21e | 1736 | case SVt_PVGV: |
a0d0e21e LW |
1737 | case SVt_PVAV: |
1738 | case SVt_PVHV: | |
1739 | case SVt_PVCV: | |
1740 | case SVt_PVFM: | |
1741 | case SVt_PVIO: | |
411caa50 | 1742 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
53e06cf0 | 1743 | OP_NAME(PL_op)); |
79072805 | 1744 | } |
463ee0b2 | 1745 | SvNVX(sv) = num; |
a0d0e21e | 1746 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1747 | SvTAINT(sv); |
79072805 LW |
1748 | } |
1749 | ||
954c1994 GS |
1750 | /* |
1751 | =for apidoc sv_setnv_mg | |
1752 | ||
1753 | Like C<sv_setnv>, but also handles 'set' magic. | |
1754 | ||
1755 | =cut | |
1756 | */ | |
1757 | ||
ef50df4b | 1758 | void |
65202027 | 1759 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1760 | { |
1761 | sv_setnv(sv,num); | |
1762 | SvSETMAGIC(sv); | |
1763 | } | |
1764 | ||
645c22ef DM |
1765 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1766 | * printable version of the offending string | |
1767 | */ | |
1768 | ||
76e3520e | 1769 | STATIC void |
cea2e8a9 | 1770 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e | 1771 | { |
94463019 JH |
1772 | SV *dsv; |
1773 | char tmpbuf[64]; | |
1774 | char *pv; | |
1775 | ||
1776 | if (DO_UTF8(sv)) { | |
1777 | dsv = sv_2mortal(newSVpv("", 0)); | |
1778 | pv = sv_uni_display(dsv, sv, 10, 0); | |
1779 | } else { | |
1780 | char *d = tmpbuf; | |
1781 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; | |
1782 | /* each *s can expand to 4 chars + "...\0", | |
1783 | i.e. need room for 8 chars */ | |
ecdeb87c | 1784 | |
94463019 JH |
1785 | char *s, *end; |
1786 | for (s = SvPVX(sv), end = s + SvCUR(sv); s < end && d < limit; s++) { | |
1787 | int ch = *s & 0xFF; | |
1788 | if (ch & 128 && !isPRINT_LC(ch)) { | |
1789 | *d++ = 'M'; | |
1790 | *d++ = '-'; | |
1791 | ch &= 127; | |
1792 | } | |
1793 | if (ch == '\n') { | |
1794 | *d++ = '\\'; | |
1795 | *d++ = 'n'; | |
1796 | } | |
1797 | else if (ch == '\r') { | |
1798 | *d++ = '\\'; | |
1799 | *d++ = 'r'; | |
1800 | } | |
1801 | else if (ch == '\f') { | |
1802 | *d++ = '\\'; | |
1803 | *d++ = 'f'; | |
1804 | } | |
1805 | else if (ch == '\\') { | |
1806 | *d++ = '\\'; | |
1807 | *d++ = '\\'; | |
1808 | } | |
1809 | else if (ch == '\0') { | |
1810 | *d++ = '\\'; | |
1811 | *d++ = '0'; | |
1812 | } | |
1813 | else if (isPRINT_LC(ch)) | |
1814 | *d++ = ch; | |
1815 | else { | |
1816 | *d++ = '^'; | |
1817 | *d++ = toCTRL(ch); | |
1818 | } | |
1819 | } | |
1820 | if (s < end) { | |
1821 | *d++ = '.'; | |
1822 | *d++ = '.'; | |
1823 | *d++ = '.'; | |
1824 | } | |
1825 | *d = '\0'; | |
1826 | pv = tmpbuf; | |
a0d0e21e | 1827 | } |
a0d0e21e | 1828 | |
533c011a | 1829 | if (PL_op) |
9014280d | 1830 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 JH |
1831 | "Argument \"%s\" isn't numeric in %s", pv, |
1832 | OP_DESC(PL_op)); | |
a0d0e21e | 1833 | else |
9014280d | 1834 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 | 1835 | "Argument \"%s\" isn't numeric", pv); |
a0d0e21e LW |
1836 | } |
1837 | ||
c2988b20 NC |
1838 | /* |
1839 | =for apidoc looks_like_number | |
1840 | ||
645c22ef DM |
1841 | Test if the content of an SV looks like a number (or is a number). |
1842 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1843 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1844 | |
1845 | =cut | |
1846 | */ | |
1847 | ||
1848 | I32 | |
1849 | Perl_looks_like_number(pTHX_ SV *sv) | |
1850 | { | |
1851 | register char *sbegin; | |
1852 | STRLEN len; | |
1853 | ||
1854 | if (SvPOK(sv)) { | |
1855 | sbegin = SvPVX(sv); | |
1856 | len = SvCUR(sv); | |
1857 | } | |
1858 | else if (SvPOKp(sv)) | |
1859 | sbegin = SvPV(sv, len); | |
1860 | else | |
1861 | return 1; /* Historic. Wrong? */ | |
1862 | return grok_number(sbegin, len, NULL); | |
1863 | } | |
25da4f38 IZ |
1864 | |
1865 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1866 | until proven guilty, assume that things are not that bad... */ | |
1867 | ||
645c22ef DM |
1868 | /* |
1869 | NV_PRESERVES_UV: | |
1870 | ||
1871 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
1872 | an IV (an assumption perl has been based on to date) it becomes necessary |
1873 | to remove the assumption that the NV always carries enough precision to | |
1874 | recreate the IV whenever needed, and that the NV is the canonical form. | |
1875 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 1876 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
1877 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
1878 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
1879 | conversion where precision was lost and IV/UV/NV slots that have a | |
1880 | valid conversion which has lost no precision | |
645c22ef | 1881 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
1882 | would lose precision, the precise conversion (or differently |
1883 | imprecise conversion) is also performed and cached, to prevent | |
1884 | requests for different numeric formats on the same SV causing | |
1885 | lossy conversion chains. (lossless conversion chains are perfectly | |
1886 | acceptable (still)) | |
1887 | ||
1888 | ||
1889 | flags are used: | |
1890 | SvIOKp is true if the IV slot contains a valid value | |
1891 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
1892 | SvNOKp is true if the NV slot contains a valid value | |
1893 | SvNOK is true only if the NV value is accurate | |
1894 | ||
1895 | so | |
645c22ef | 1896 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
1897 | IV(or UV) would lose accuracy over a direct conversion from PV to |
1898 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
1899 | SV as IOK NOKp (ie not NOK). | |
1900 | ||
645c22ef | 1901 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
1902 | NV would lose accuracy over a direct conversion from PV to NV. If it |
1903 | would, cache both conversions, flag similarly. | |
1904 | ||
1905 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
1906 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
1907 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
1908 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 1909 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 1910 | |
645c22ef DM |
1911 | The benefit of this is that operations such as pp_add know that if |
1912 | SvIOK is true for both left and right operands, then integer addition | |
1913 | can be used instead of floating point (for cases where the result won't | |
1914 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
1915 | loss of precision compared with integer addition. |
1916 | ||
1917 | * making IV and NV equal status should make maths accurate on 64 bit | |
1918 | platforms | |
1919 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 1920 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
1921 | looking for SvIOK and checking for overflow will not outweigh the |
1922 | fp to integer speedup) | |
1923 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
1924 | values, as the change from SvIOK to SvIOKp will cause a call into | |
1925 | sv_2iv each time rather than a macro access direct to the IV slot | |
1926 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 1927 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
1928 | |
1929 | #################################################################### | |
645c22ef DM |
1930 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
1931 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
1932 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
1933 | #################################################################### |
1934 | ||
645c22ef | 1935 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
1936 | performance ratio. |
1937 | */ | |
1938 | ||
1939 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
1940 | # define IS_NUMBER_UNDERFLOW_IV 1 |
1941 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
1942 | # define IS_NUMBER_IV_AND_UV 2 | |
1943 | # define IS_NUMBER_OVERFLOW_IV 4 | |
1944 | # define IS_NUMBER_OVERFLOW_UV 5 | |
1945 | ||
1946 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
1947 | |
1948 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
1949 | STATIC int | |
645c22ef | 1950 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 1951 | { |
1779d84d | 1952 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_2iuv_non '%s', IV=0x%"UVxf" NV=%"NVgf" inttype=%"UVXf"\n", SvPVX(sv), SvIVX(sv), SvNVX(sv), (UV)numtype)); |
28e5dec8 JH |
1953 | if (SvNVX(sv) < (NV)IV_MIN) { |
1954 | (void)SvIOKp_on(sv); | |
1955 | (void)SvNOK_on(sv); | |
1956 | SvIVX(sv) = IV_MIN; | |
1957 | return IS_NUMBER_UNDERFLOW_IV; | |
1958 | } | |
1959 | if (SvNVX(sv) > (NV)UV_MAX) { | |
1960 | (void)SvIOKp_on(sv); | |
1961 | (void)SvNOK_on(sv); | |
1962 | SvIsUV_on(sv); | |
1963 | SvUVX(sv) = UV_MAX; | |
1964 | return IS_NUMBER_OVERFLOW_UV; | |
1965 | } | |
c2988b20 NC |
1966 | (void)SvIOKp_on(sv); |
1967 | (void)SvNOK_on(sv); | |
1968 | /* Can't use strtol etc to convert this string. (See truth table in | |
1969 | sv_2iv */ | |
1970 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
1971 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1972 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
1973 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
1974 | } else { | |
1975 | /* Integer is imprecise. NOK, IOKp */ | |
1976 | } | |
1977 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
1978 | } | |
1979 | SvIsUV_on(sv); | |
1980 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1981 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
1982 | if (SvUVX(sv) == UV_MAX) { | |
1983 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
1984 | possibly be preserved by NV. Hence, it must be overflow. | |
1985 | NOK, IOKp */ | |
1986 | return IS_NUMBER_OVERFLOW_UV; | |
1987 | } | |
1988 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
1989 | } else { | |
1990 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 1991 | } |
c2988b20 | 1992 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 1993 | } |
645c22ef DM |
1994 | #endif /* !NV_PRESERVES_UV*/ |
1995 | ||
1996 | /* | |
1997 | =for apidoc sv_2iv | |
1998 | ||
1999 | Return the integer value of an SV, doing any necessary string conversion, | |
2000 | magic etc. Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
2001 | ||
2002 | =cut | |
2003 | */ | |
28e5dec8 | 2004 | |
a0d0e21e | 2005 | IV |
864dbfa3 | 2006 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
2007 | { |
2008 | if (!sv) | |
2009 | return 0; | |
8990e307 | 2010 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2011 | mg_get(sv); |
2012 | if (SvIOKp(sv)) | |
2013 | return SvIVX(sv); | |
748a9306 | 2014 | if (SvNOKp(sv)) { |
25da4f38 | 2015 | return I_V(SvNVX(sv)); |
748a9306 | 2016 | } |
36477c24 | 2017 | if (SvPOKp(sv) && SvLEN(sv)) |
2018 | return asIV(sv); | |
3fe9a6f1 | 2019 | if (!SvROK(sv)) { |
d008e5eb | 2020 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2021 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2022 | report_uninit(); |
c6ee37c5 | 2023 | } |
36477c24 | 2024 | return 0; |
3fe9a6f1 | 2025 | } |
463ee0b2 | 2026 | } |
ed6116ce | 2027 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2028 | if (SvROK(sv)) { |
a0d0e21e | 2029 | SV* tmpstr; |
1554e226 | 2030 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2031 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2032 | return SvIV(tmpstr); |
56431972 | 2033 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2034 | } |
47deb5e7 NIS |
2035 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2036 | sv_force_normal(sv); | |
2037 | } | |
0336b60e | 2038 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2039 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2040 | report_uninit(); |
ed6116ce LW |
2041 | return 0; |
2042 | } | |
79072805 | 2043 | } |
25da4f38 IZ |
2044 | if (SvIOKp(sv)) { |
2045 | if (SvIsUV(sv)) { | |
2046 | return (IV)(SvUVX(sv)); | |
2047 | } | |
2048 | else { | |
2049 | return SvIVX(sv); | |
2050 | } | |
463ee0b2 | 2051 | } |
748a9306 | 2052 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2053 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2054 | * without also getting a cached IV/UV from it at the same time | |
2055 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2056 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2057 | |
2058 | if (SvTYPE(sv) == SVt_NV) | |
2059 | sv_upgrade(sv, SVt_PVNV); | |
2060 | ||
28e5dec8 JH |
2061 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2062 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2063 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2064 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2065 | cases go to UV */ | |
2066 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
748a9306 | 2067 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2068 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2069 | #ifndef NV_PRESERVES_UV | |
2070 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2071 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2072 | /* Don't flag it as "accurately an integer" if the number | |
2073 | came from a (by definition imprecise) NV operation, and | |
2074 | we're outside the range of NV integer precision */ | |
2075 | #endif | |
2076 | ) { | |
2077 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2078 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2079 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2080 | PTR2UV(sv), |
2081 | SvNVX(sv), | |
2082 | SvIVX(sv))); | |
2083 | ||
2084 | } else { | |
2085 | /* IV not precise. No need to convert from PV, as NV | |
2086 | conversion would already have cached IV if it detected | |
2087 | that PV->IV would be better than PV->NV->IV | |
2088 | flags already correct - don't set public IOK. */ | |
2089 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2090 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2091 | PTR2UV(sv), |
2092 | SvNVX(sv), | |
2093 | SvIVX(sv))); | |
2094 | } | |
2095 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2096 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2097 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2098 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2099 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2100 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2101 | Hopefully for 2s complement IV_MIN is something like | |
2102 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2103 | } |
25da4f38 | 2104 | else { |
ff68c719 | 2105 | SvUVX(sv) = U_V(SvNVX(sv)); |
28e5dec8 JH |
2106 | if ( |
2107 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2108 | #ifndef NV_PRESERVES_UV | |
2109 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2110 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2111 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2112 | /* Don't flag it as "accurately an integer" if the number | |
2113 | came from a (by definition imprecise) NV operation, and | |
2114 | we're outside the range of NV integer precision */ | |
2115 | #endif | |
2116 | ) | |
2117 | SvIOK_on(sv); | |
25da4f38 IZ |
2118 | SvIsUV_on(sv); |
2119 | ret_iv_max: | |
1c846c1f | 2120 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2121 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2122 | PTR2UV(sv), |
57def98f JH |
2123 | SvUVX(sv), |
2124 | SvUVX(sv))); | |
25da4f38 IZ |
2125 | return (IV)SvUVX(sv); |
2126 | } | |
748a9306 LW |
2127 | } |
2128 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2129 | UV value; |
2130 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2131 | /* We want to avoid a possible problem when we cache an IV which |
2132 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2133 | the same as the direct translation of the initial string |
2134 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2135 | be careful to ensure that the value with the .456 is around if the | |
2136 | NV value is requested in the future). | |
1c846c1f | 2137 | |
25da4f38 IZ |
2138 | This means that if we cache such an IV, we need to cache the |
2139 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2140 | cache the NV if we are sure it's not needed. |
25da4f38 | 2141 | */ |
16b7a9a4 | 2142 | |
c2988b20 NC |
2143 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2144 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2145 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2146 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2147 | if (SvTYPE(sv) < SVt_PVIV) |
2148 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2149 | (void)SvIOK_on(sv); |
c2988b20 NC |
2150 | } else if (SvTYPE(sv) < SVt_PVNV) |
2151 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2152 | |
c2988b20 NC |
2153 | /* If NV preserves UV then we only use the UV value if we know that |
2154 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2155 | then the value returned may have more precision than atof() will | |
2156 | return, even though value isn't perfectly accurate. */ | |
2157 | if ((numtype & (IS_NUMBER_IN_UV | |
2158 | #ifdef NV_PRESERVES_UV | |
2159 | | IS_NUMBER_NOT_INT | |
2160 | #endif | |
2161 | )) == IS_NUMBER_IN_UV) { | |
2162 | /* This won't turn off the public IOK flag if it was set above */ | |
2163 | (void)SvIOKp_on(sv); | |
2164 | ||
2165 | if (!(numtype & IS_NUMBER_NEG)) { | |
2166 | /* positive */; | |
2167 | if (value <= (UV)IV_MAX) { | |
2168 | SvIVX(sv) = (IV)value; | |
2169 | } else { | |
2170 | SvUVX(sv) = value; | |
2171 | SvIsUV_on(sv); | |
2172 | } | |
2173 | } else { | |
2174 | /* 2s complement assumption */ | |
2175 | if (value <= (UV)IV_MIN) { | |
2176 | SvIVX(sv) = -(IV)value; | |
2177 | } else { | |
2178 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2179 | I'm assuming it will be rare. */ |
c2988b20 NC |
2180 | if (SvTYPE(sv) < SVt_PVNV) |
2181 | sv_upgrade(sv, SVt_PVNV); | |
2182 | SvNOK_on(sv); | |
2183 | SvIOK_off(sv); | |
2184 | SvIOKp_on(sv); | |
2185 | SvNVX(sv) = -(NV)value; | |
2186 | SvIVX(sv) = IV_MIN; | |
2187 | } | |
2188 | } | |
2189 | } | |
2190 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2191 | will be in the previous block to set the IV slot, and the next | |
2192 | block to set the NV slot. So no else here. */ | |
2193 | ||
2194 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2195 | != IS_NUMBER_IN_UV) { | |
2196 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
2197 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2198 | |
c2988b20 NC |
2199 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2200 | not_a_number(sv); | |
28e5dec8 | 2201 | |
65202027 | 2202 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2203 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2204 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2205 | #else |
1779d84d | 2206 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"NVgf")\n", |
c2988b20 | 2207 | PTR2UV(sv), SvNVX(sv))); |
65202027 | 2208 | #endif |
28e5dec8 JH |
2209 | |
2210 | ||
2211 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2212 | (void)SvIOKp_on(sv); |
2213 | (void)SvNOK_on(sv); | |
2214 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2215 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2216 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2217 | SvIOK_on(sv); | |
28e5dec8 | 2218 | } else { |
c2988b20 NC |
2219 | /* Integer is imprecise. NOK, IOKp */ |
2220 | } | |
2221 | /* UV will not work better than IV */ | |
2222 | } else { | |
2223 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2224 | SvIsUV_on(sv); | |
2225 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2226 | SvUVX(sv) = UV_MAX; | |
2227 | SvIsUV_on(sv); | |
2228 | } else { | |
2229 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2230 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ | |
2231 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2232 | SvIOK_on(sv); | |
28e5dec8 JH |
2233 | SvIsUV_on(sv); |
2234 | } else { | |
c2988b20 NC |
2235 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2236 | SvIsUV_on(sv); | |
28e5dec8 | 2237 | } |
28e5dec8 | 2238 | } |
c2988b20 NC |
2239 | goto ret_iv_max; |
2240 | } | |
28e5dec8 | 2241 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2242 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2243 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2244 | /* The IV slot will have been set from value returned by | |
2245 | grok_number above. The NV slot has just been set using | |
2246 | Atof. */ | |
560b0c46 | 2247 | SvNOK_on(sv); |
c2988b20 NC |
2248 | assert (SvIOKp(sv)); |
2249 | } else { | |
2250 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2251 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2252 | /* Small enough to preserve all bits. */ | |
2253 | (void)SvIOKp_on(sv); | |
2254 | SvNOK_on(sv); | |
2255 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2256 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2257 | SvIOK_on(sv); | |
2258 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2259 | this NV is in the preserved range, therefore: */ | |
2260 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2261 | < (UV)IV_MAX)) { | |
1779d84d | 2262 | Perl_croak(aTHX_ "sv_2iv assumed (U_V(fabs(SvNVX(sv))) < (UV)IV_MAX) but SvNVX(sv)=%"NVgf" U_V is 0x%"UVxf", IV_MAX is 0x%"UVxf"\n", SvNVX(sv), U_V(SvNVX(sv)), (UV)IV_MAX); |
c2988b20 NC |
2263 | } |
2264 | } else { | |
2265 | /* IN_UV NOT_INT | |
2266 | 0 0 already failed to read UV. | |
2267 | 0 1 already failed to read UV. | |
2268 | 1 0 you won't get here in this case. IV/UV | |
2269 | slot set, public IOK, Atof() unneeded. | |
2270 | 1 1 already read UV. | |
2271 | so there's no point in sv_2iuv_non_preserve() attempting | |
2272 | to use atol, strtol, strtoul etc. */ | |
2273 | if (sv_2iuv_non_preserve (sv, numtype) | |
2274 | >= IS_NUMBER_OVERFLOW_IV) | |
2275 | goto ret_iv_max; | |
2276 | } | |
2277 | } | |
28e5dec8 | 2278 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2279 | } |
28e5dec8 | 2280 | } else { |
599cee73 | 2281 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2282 | report_uninit(); |
25da4f38 IZ |
2283 | if (SvTYPE(sv) < SVt_IV) |
2284 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2285 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2286 | return 0; |
79072805 | 2287 | } |
1d7c1841 GS |
2288 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2289 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2290 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2291 | } |
2292 | ||
645c22ef DM |
2293 | /* |
2294 | =for apidoc sv_2uv | |
2295 | ||
2296 | Return the unsigned integer value of an SV, doing any necessary string | |
2297 | conversion, magic etc. Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> | |
2298 | macros. | |
2299 | ||
2300 | =cut | |
2301 | */ | |
2302 | ||
ff68c719 | 2303 | UV |
864dbfa3 | 2304 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 2305 | { |
2306 | if (!sv) | |
2307 | return 0; | |
2308 | if (SvGMAGICAL(sv)) { | |
2309 | mg_get(sv); | |
2310 | if (SvIOKp(sv)) | |
2311 | return SvUVX(sv); | |
2312 | if (SvNOKp(sv)) | |
2313 | return U_V(SvNVX(sv)); | |
36477c24 | 2314 | if (SvPOKp(sv) && SvLEN(sv)) |
2315 | return asUV(sv); | |
3fe9a6f1 | 2316 | if (!SvROK(sv)) { |
d008e5eb | 2317 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2318 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2319 | report_uninit(); |
c6ee37c5 | 2320 | } |
36477c24 | 2321 | return 0; |
3fe9a6f1 | 2322 | } |
ff68c719 | 2323 | } |
2324 | if (SvTHINKFIRST(sv)) { | |
2325 | if (SvROK(sv)) { | |
ff68c719 | 2326 | SV* tmpstr; |
1554e226 | 2327 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2328 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2329 | return SvUV(tmpstr); |
56431972 | 2330 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2331 | } |
8a818333 NIS |
2332 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2333 | sv_force_normal(sv); | |
2334 | } | |
0336b60e | 2335 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2336 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2337 | report_uninit(); |
ff68c719 | 2338 | return 0; |
2339 | } | |
2340 | } | |
25da4f38 IZ |
2341 | if (SvIOKp(sv)) { |
2342 | if (SvIsUV(sv)) { | |
2343 | return SvUVX(sv); | |
2344 | } | |
2345 | else { | |
2346 | return (UV)SvIVX(sv); | |
2347 | } | |
ff68c719 | 2348 | } |
2349 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2350 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2351 | * without also getting a cached IV/UV from it at the same time | |
2352 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2353 | * IV or UV at same time to avoid this. */ | |
2354 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2355 | ||
25da4f38 IZ |
2356 | if (SvTYPE(sv) == SVt_NV) |
2357 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2358 | |
2359 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2360 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
f7bbb42a | 2361 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2362 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2363 | #ifndef NV_PRESERVES_UV | |
2364 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2365 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2366 | /* Don't flag it as "accurately an integer" if the number | |
2367 | came from a (by definition imprecise) NV operation, and | |
2368 | we're outside the range of NV integer precision */ | |
2369 | #endif | |
2370 | ) { | |
2371 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2372 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2373 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2374 | PTR2UV(sv), |
2375 | SvNVX(sv), | |
2376 | SvIVX(sv))); | |
2377 | ||
2378 | } else { | |
2379 | /* IV not precise. No need to convert from PV, as NV | |
2380 | conversion would already have cached IV if it detected | |
2381 | that PV->IV would be better than PV->NV->IV | |
2382 | flags already correct - don't set public IOK. */ | |
2383 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2384 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2385 | PTR2UV(sv), |
2386 | SvNVX(sv), | |
2387 | SvIVX(sv))); | |
2388 | } | |
2389 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2390 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2391 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2392 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2393 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2394 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2395 | Hopefully for 2s complement IV_MIN is something like | |
2396 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2397 | } |
28e5dec8 JH |
2398 | else { |
2399 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2400 | if ( | |
2401 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2402 | #ifndef NV_PRESERVES_UV | |
2403 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2404 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2405 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2406 | /* Don't flag it as "accurately an integer" if the number | |
2407 | came from a (by definition imprecise) NV operation, and | |
2408 | we're outside the range of NV integer precision */ | |
2409 | #endif | |
2410 | ) | |
2411 | SvIOK_on(sv); | |
2412 | SvIsUV_on(sv); | |
1c846c1f | 2413 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2414 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2415 | PTR2UV(sv), |
28e5dec8 JH |
2416 | SvUVX(sv), |
2417 | SvUVX(sv))); | |
25da4f38 | 2418 | } |
ff68c719 | 2419 | } |
2420 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2421 | UV value; |
2422 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2423 | |
2424 | /* We want to avoid a possible problem when we cache a UV which | |
2425 | may be later translated to an NV, and the resulting NV is not | |
2426 | the translation of the initial data. | |
1c846c1f | 2427 | |
25da4f38 IZ |
2428 | This means that if we cache such a UV, we need to cache the |
2429 | NV as well. Moreover, we trade speed for space, and do not | |
2430 | cache the NV if not needed. | |
2431 | */ | |
16b7a9a4 | 2432 | |
c2988b20 NC |
2433 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2434 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2435 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2436 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2437 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2438 | sv_upgrade(sv, SVt_PVIV); |
2439 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2440 | } else if (SvTYPE(sv) < SVt_PVNV) |
2441 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2442 | |
c2988b20 NC |
2443 | /* If NV preserves UV then we only use the UV value if we know that |
2444 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2445 | then the value returned may have more precision than atof() will | |
2446 | return, even though it isn't accurate. */ | |
2447 | if ((numtype & (IS_NUMBER_IN_UV | |
2448 | #ifdef NV_PRESERVES_UV | |
2449 | | IS_NUMBER_NOT_INT | |
2450 | #endif | |
2451 | )) == IS_NUMBER_IN_UV) { | |
2452 | /* This won't turn off the public IOK flag if it was set above */ | |
2453 | (void)SvIOKp_on(sv); | |
2454 | ||
2455 | if (!(numtype & IS_NUMBER_NEG)) { | |
2456 | /* positive */; | |
2457 | if (value <= (UV)IV_MAX) { | |
2458 | SvIVX(sv) = (IV)value; | |
28e5dec8 JH |
2459 | } else { |
2460 | /* it didn't overflow, and it was positive. */ | |
c2988b20 | 2461 | SvUVX(sv) = value; |
28e5dec8 JH |
2462 | SvIsUV_on(sv); |
2463 | } | |
c2988b20 NC |
2464 | } else { |
2465 | /* 2s complement assumption */ | |
2466 | if (value <= (UV)IV_MIN) { | |
2467 | SvIVX(sv) = -(IV)value; | |
2468 | } else { | |
2469 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2470 | I'm assuming it will be rare. */ |
c2988b20 NC |
2471 | if (SvTYPE(sv) < SVt_PVNV) |
2472 | sv_upgrade(sv, SVt_PVNV); | |
2473 | SvNOK_on(sv); | |
2474 | SvIOK_off(sv); | |
2475 | SvIOKp_on(sv); | |
2476 | SvNVX(sv) = -(NV)value; | |
2477 | SvIVX(sv) = IV_MIN; | |
2478 | } | |
2479 | } | |
2480 | } | |
2481 | ||
2482 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2483 | != IS_NUMBER_IN_UV) { | |
2484 | /* It wasn't an integer, or it overflowed the UV. */ | |
2485 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2486 | |
c2988b20 | 2487 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2488 | not_a_number(sv); |
2489 | ||
2490 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2491 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2492 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2493 | #else |
1779d84d | 2494 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"NVgf")\n", |
c2988b20 | 2495 | PTR2UV(sv), SvNVX(sv))); |
28e5dec8 JH |
2496 | #endif |
2497 | ||
2498 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2499 | (void)SvIOKp_on(sv); |
2500 | (void)SvNOK_on(sv); | |
2501 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2502 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2503 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2504 | SvIOK_on(sv); | |
2505 | } else { | |
2506 | /* Integer is imprecise. NOK, IOKp */ | |
2507 | } | |
2508 | /* UV will not work better than IV */ | |
2509 | } else { | |
2510 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2511 | SvIsUV_on(sv); | |
2512 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2513 | SvUVX(sv) = UV_MAX; | |
2514 | SvIsUV_on(sv); | |
2515 | } else { | |
2516 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2517 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs | |
2518 | NV preservse UV so can do correct comparison. */ | |
2519 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2520 | SvIOK_on(sv); | |
2521 | SvIsUV_on(sv); | |
2522 | } else { | |
2523 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2524 | SvIsUV_on(sv); | |
2525 | } | |
2526 | } | |
2527 | } | |
28e5dec8 | 2528 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2529 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2530 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2531 | /* The UV slot will have been set from value returned by | |
2532 | grok_number above. The NV slot has just been set using | |
2533 | Atof. */ | |
560b0c46 | 2534 | SvNOK_on(sv); |
c2988b20 NC |
2535 | assert (SvIOKp(sv)); |
2536 | } else { | |
2537 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2538 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2539 | /* Small enough to preserve all bits. */ | |
2540 | (void)SvIOKp_on(sv); | |
2541 | SvNOK_on(sv); | |
2542 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2543 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2544 | SvIOK_on(sv); | |
2545 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2546 | this NV is in the preserved range, therefore: */ | |
2547 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2548 | < (UV)IV_MAX)) { | |
1779d84d | 2549 | Perl_croak(aTHX_ "sv_2uv assumed (U_V(fabs(SvNVX(sv))) < (UV)IV_MAX) but SvNVX(sv)=%"NVgf" U_V is 0x%"UVxf", IV_MAX is 0x%"UVxf"\n", SvNVX(sv), U_V(SvNVX(sv)), (UV)IV_MAX); |
c2988b20 NC |
2550 | } |
2551 | } else | |
2552 | sv_2iuv_non_preserve (sv, numtype); | |
2553 | } | |
28e5dec8 | 2554 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2555 | } |
ff68c719 | 2556 | } |
2557 | else { | |
d008e5eb | 2558 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2559 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2560 | report_uninit(); |
c6ee37c5 | 2561 | } |
25da4f38 IZ |
2562 | if (SvTYPE(sv) < SVt_IV) |
2563 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2564 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2565 | return 0; |
2566 | } | |
25da4f38 | 2567 | |
1d7c1841 GS |
2568 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2569 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2570 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2571 | } |
2572 | ||
645c22ef DM |
2573 | /* |
2574 | =for apidoc sv_2nv | |
2575 | ||
2576 | Return the num value of an SV, doing any necessary string or integer | |
2577 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2578 | macros. | |
2579 | ||
2580 | =cut | |
2581 | */ | |
2582 | ||
65202027 | 2583 | NV |
864dbfa3 | 2584 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2585 | { |
2586 | if (!sv) | |
2587 | return 0.0; | |
8990e307 | 2588 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2589 | mg_get(sv); |
2590 | if (SvNOKp(sv)) | |
2591 | return SvNVX(sv); | |
a0d0e21e | 2592 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2593 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
2594 | !grok_number(SvPVX(sv), SvCUR(sv), NULL)) | |
a0d0e21e | 2595 | not_a_number(sv); |
097ee67d | 2596 | return Atof(SvPVX(sv)); |
a0d0e21e | 2597 | } |
25da4f38 | 2598 | if (SvIOKp(sv)) { |
1c846c1f | 2599 | if (SvIsUV(sv)) |
65202027 | 2600 | return (NV)SvUVX(sv); |
25da4f38 | 2601 | else |
65202027 | 2602 | return (NV)SvIVX(sv); |
25da4f38 | 2603 | } |
16d20bd9 | 2604 | if (!SvROK(sv)) { |
d008e5eb | 2605 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2606 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2607 | report_uninit(); |
c6ee37c5 | 2608 | } |
16d20bd9 AD |
2609 | return 0; |
2610 | } | |
463ee0b2 | 2611 | } |
ed6116ce | 2612 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2613 | if (SvROK(sv)) { |
a0d0e21e | 2614 | SV* tmpstr; |
1554e226 | 2615 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2616 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2617 | return SvNV(tmpstr); |
56431972 | 2618 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2619 | } |
8a818333 NIS |
2620 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2621 | sv_force_normal(sv); | |
2622 | } | |
0336b60e | 2623 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2624 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2625 | report_uninit(); |
ed6116ce LW |
2626 | return 0.0; |
2627 | } | |
79072805 LW |
2628 | } |
2629 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2630 | if (SvTYPE(sv) == SVt_IV) |
2631 | sv_upgrade(sv, SVt_PVNV); | |
2632 | else | |
2633 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2634 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2635 | DEBUG_c({ |
f93f4e46 | 2636 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2637 | PerlIO_printf(Perl_debug_log, |
2638 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2639 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2640 | RESTORE_NUMERIC_LOCAL(); |
2641 | }); | |
65202027 | 2642 | #else |
572bbb43 | 2643 | DEBUG_c({ |
f93f4e46 | 2644 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2645 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%"NVgf")\n", |
1d7c1841 | 2646 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2647 | RESTORE_NUMERIC_LOCAL(); |
2648 | }); | |
572bbb43 | 2649 | #endif |
79072805 LW |
2650 | } |
2651 | else if (SvTYPE(sv) < SVt_PVNV) | |
2652 | sv_upgrade(sv, SVt_PVNV); | |
59d8ce62 NC |
2653 | if (SvNOKp(sv)) { |
2654 | return SvNVX(sv); | |
61604483 | 2655 | } |
59d8ce62 | 2656 | if (SvIOKp(sv)) { |
65202027 | 2657 | SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv); |
28e5dec8 JH |
2658 | #ifdef NV_PRESERVES_UV |
2659 | SvNOK_on(sv); | |
2660 | #else | |
2661 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2662 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2663 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2664 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2665 | SvNOK_on(sv); | |
2666 | else | |
2667 | SvNOKp_on(sv); | |
2668 | #endif | |
93a17b20 | 2669 | } |
748a9306 | 2670 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2671 | UV value; |
2672 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2673 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) | |
a0d0e21e | 2674 | not_a_number(sv); |
28e5dec8 | 2675 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2676 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2677 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2678 | /* It's definitely an integer */ |
c2988b20 NC |
2679 | SvNVX(sv) = (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value; |
2680 | } else | |
2681 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 JH |
2682 | SvNOK_on(sv); |
2683 | #else | |
c2988b20 | 2684 | SvNVX(sv) = Atof(SvPVX(sv)); |
28e5dec8 JH |
2685 | /* Only set the public NV OK flag if this NV preserves the value in |
2686 | the PV at least as well as an IV/UV would. | |
2687 | Not sure how to do this 100% reliably. */ | |
2688 | /* if that shift count is out of range then Configure's test is | |
2689 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2690 | UV_BITS */ | |
2691 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2692 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2693 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2694 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2695 | /* Can't use strtol etc to convert this string, so don't try. | |
2696 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2697 | SvNOK_on(sv); | |
2698 | } else { | |
2699 | /* value has been set. It may not be precise. */ | |
2700 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2701 | /* 2s complement assumption for (UV)IV_MIN */ | |
2702 | SvNOK_on(sv); /* Integer is too negative. */ | |
2703 | } else { | |
2704 | SvNOKp_on(sv); | |
2705 | SvIOKp_on(sv); | |
6fa402ec | 2706 | |
c2988b20 NC |
2707 | if (numtype & IS_NUMBER_NEG) { |
2708 | SvIVX(sv) = -(IV)value; | |
2709 | } else if (value <= (UV)IV_MAX) { | |
2710 | SvIVX(sv) = (IV)value; | |
2711 | } else { | |
2712 | SvUVX(sv) = value; | |
2713 | SvIsUV_on(sv); | |
2714 | } | |
2715 | ||
2716 | if (numtype & IS_NUMBER_NOT_INT) { | |
2717 | /* I believe that even if the original PV had decimals, | |
2718 | they are lost beyond the limit of the FP precision. | |
2719 | However, neither is canonical, so both only get p | |
2720 | flags. NWC, 2000/11/25 */ | |
2721 | /* Both already have p flags, so do nothing */ | |
2722 | } else { | |
2723 | NV nv = SvNVX(sv); | |
2724 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2725 | if (SvIVX(sv) == I_V(nv)) { | |
2726 | SvNOK_on(sv); | |
2727 | SvIOK_on(sv); | |
2728 | } else { | |
2729 | SvIOK_on(sv); | |
2730 | /* It had no "." so it must be integer. */ | |
2731 | } | |
2732 | } else { | |
2733 | /* between IV_MAX and NV(UV_MAX). | |
2734 | Could be slightly > UV_MAX */ | |
6fa402ec | 2735 | |
c2988b20 NC |
2736 | if (numtype & IS_NUMBER_NOT_INT) { |
2737 | /* UV and NV both imprecise. */ | |
2738 | } else { | |
2739 | UV nv_as_uv = U_V(nv); | |
2740 | ||
2741 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2742 | SvNOK_on(sv); | |
2743 | SvIOK_on(sv); | |
2744 | } else { | |
2745 | SvIOK_on(sv); | |
2746 | } | |
2747 | } | |
2748 | } | |
2749 | } | |
2750 | } | |
2751 | } | |
28e5dec8 | 2752 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2753 | } |
79072805 | 2754 | else { |
599cee73 | 2755 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2756 | report_uninit(); |
25da4f38 IZ |
2757 | if (SvTYPE(sv) < SVt_NV) |
2758 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2759 | /* XXX Ilya implies that this is a bug in callers that assume this |
2760 | and ideally should be fixed. */ | |
25da4f38 | 2761 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2762 | return 0.0; |
79072805 | 2763 | } |
572bbb43 | 2764 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2765 | DEBUG_c({ |
f93f4e46 | 2766 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2767 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2768 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2769 | RESTORE_NUMERIC_LOCAL(); |
2770 | }); | |
65202027 | 2771 | #else |
572bbb43 | 2772 | DEBUG_c({ |
f93f4e46 | 2773 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2774 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%"NVgf")\n", |
1d7c1841 | 2775 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2776 | RESTORE_NUMERIC_LOCAL(); |
2777 | }); | |
572bbb43 | 2778 | #endif |
463ee0b2 | 2779 | return SvNVX(sv); |
79072805 LW |
2780 | } |
2781 | ||
645c22ef DM |
2782 | /* asIV(): extract an integer from the string value of an SV. |
2783 | * Caller must validate PVX */ | |
2784 | ||
76e3520e | 2785 | STATIC IV |
cea2e8a9 | 2786 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2787 | { |
c2988b20 NC |
2788 | UV value; |
2789 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2790 | ||
2791 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2792 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2793 | /* It's definitely an integer */ |
c2988b20 NC |
2794 | if (numtype & IS_NUMBER_NEG) { |
2795 | if (value < (UV)IV_MIN) | |
2796 | return -(IV)value; | |
2797 | } else { | |
2798 | if (value < (UV)IV_MAX) | |
2799 | return (IV)value; | |
2800 | } | |
2801 | } | |
d008e5eb | 2802 | if (!numtype) { |
d008e5eb GS |
2803 | if (ckWARN(WARN_NUMERIC)) |
2804 | not_a_number(sv); | |
2805 | } | |
c2988b20 | 2806 | return I_V(Atof(SvPVX(sv))); |
36477c24 | 2807 | } |
2808 | ||
645c22ef DM |
2809 | /* asUV(): extract an unsigned integer from the string value of an SV |
2810 | * Caller must validate PVX */ | |
2811 | ||
76e3520e | 2812 | STATIC UV |
cea2e8a9 | 2813 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2814 | { |
c2988b20 NC |
2815 | UV value; |
2816 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
36477c24 | 2817 | |
c2988b20 NC |
2818 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2819 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2820 | /* It's definitely an integer */ |
6fa402ec | 2821 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2822 | return value; |
2823 | } | |
d008e5eb | 2824 | if (!numtype) { |
d008e5eb GS |
2825 | if (ckWARN(WARN_NUMERIC)) |
2826 | not_a_number(sv); | |
2827 | } | |
097ee67d | 2828 | return U_V(Atof(SvPVX(sv))); |
36477c24 | 2829 | } |
2830 | ||
645c22ef DM |
2831 | /* |
2832 | =for apidoc sv_2pv_nolen | |
2833 | ||
2834 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2835 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2836 | =cut | |
2837 | */ | |
2838 | ||
79072805 | 2839 | char * |
864dbfa3 | 2840 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
2841 | { |
2842 | STRLEN n_a; | |
2843 | return sv_2pv(sv, &n_a); | |
2844 | } | |
2845 | ||
645c22ef DM |
2846 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2847 | * UV as a string towards the end of buf, and return pointers to start and | |
2848 | * end of it. | |
2849 | * | |
2850 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2851 | */ | |
2852 | ||
864dbfa3 | 2853 | static char * |
25da4f38 IZ |
2854 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
2855 | { | |
25da4f38 IZ |
2856 | char *ptr = buf + TYPE_CHARS(UV); |
2857 | char *ebuf = ptr; | |
2858 | int sign; | |
25da4f38 IZ |
2859 | |
2860 | if (is_uv) | |
2861 | sign = 0; | |
2862 | else if (iv >= 0) { | |
2863 | uv = iv; | |
2864 | sign = 0; | |
2865 | } else { | |
2866 | uv = -iv; | |
2867 | sign = 1; | |
2868 | } | |
2869 | do { | |
eb160463 | 2870 | *--ptr = '0' + (char)(uv % 10); |
25da4f38 IZ |
2871 | } while (uv /= 10); |
2872 | if (sign) | |
2873 | *--ptr = '-'; | |
2874 | *peob = ebuf; | |
2875 | return ptr; | |
2876 | } | |
2877 | ||
645c22ef DM |
2878 | /* |
2879 | =for apidoc sv_2pv_flags | |
2880 | ||
ff276b08 | 2881 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
2882 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
2883 | if necessary. | |
2884 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
2885 | usually end up here too. | |
2886 | ||
2887 | =cut | |
2888 | */ | |
2889 | ||
8d6d96c1 HS |
2890 | char * |
2891 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
2892 | { | |
79072805 LW |
2893 | register char *s; |
2894 | int olderrno; | |
46fc3d4c | 2895 | SV *tsv; |
25da4f38 IZ |
2896 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
2897 | char *tmpbuf = tbuf; | |
79072805 | 2898 | |
463ee0b2 LW |
2899 | if (!sv) { |
2900 | *lp = 0; | |
2901 | return ""; | |
2902 | } | |
8990e307 | 2903 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
2904 | if (flags & SV_GMAGIC) |
2905 | mg_get(sv); | |
463ee0b2 LW |
2906 | if (SvPOKp(sv)) { |
2907 | *lp = SvCUR(sv); | |
2908 | return SvPVX(sv); | |
2909 | } | |
cf2093f6 | 2910 | if (SvIOKp(sv)) { |
1c846c1f | 2911 | if (SvIsUV(sv)) |
57def98f | 2912 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 2913 | else |
57def98f | 2914 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 2915 | tsv = Nullsv; |
a0d0e21e | 2916 | goto tokensave; |
463ee0b2 LW |
2917 | } |
2918 | if (SvNOKp(sv)) { | |
2d4389e4 | 2919 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 2920 | tsv = Nullsv; |
a0d0e21e | 2921 | goto tokensave; |
463ee0b2 | 2922 | } |
16d20bd9 | 2923 | if (!SvROK(sv)) { |
d008e5eb | 2924 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2925 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2926 | report_uninit(); |
c6ee37c5 | 2927 | } |
16d20bd9 AD |
2928 | *lp = 0; |
2929 | return ""; | |
2930 | } | |
463ee0b2 | 2931 | } |
ed6116ce LW |
2932 | if (SvTHINKFIRST(sv)) { |
2933 | if (SvROK(sv)) { | |
a0d0e21e | 2934 | SV* tmpstr; |
1554e226 | 2935 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
1dc13c17 | 2936 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2937 | return SvPV(tmpstr,*lp); |
ed6116ce LW |
2938 | sv = (SV*)SvRV(sv); |
2939 | if (!sv) | |
2940 | s = "NULLREF"; | |
2941 | else { | |
f9277f47 IZ |
2942 | MAGIC *mg; |
2943 | ||
ed6116ce | 2944 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
2945 | case SVt_PVMG: |
2946 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 2947 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
3149a8e4 | 2948 | == (SVs_OBJECT|SVs_RMG)) |
57668c4d | 2949 | && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp") |
14befaf4 | 2950 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
2cd61cdb | 2951 | regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 2952 | |
2cd61cdb | 2953 | if (!mg->mg_ptr) { |
8782bef2 GB |
2954 | char *fptr = "msix"; |
2955 | char reflags[6]; | |
2956 | char ch; | |
2957 | int left = 0; | |
2958 | int right = 4; | |
ff385a1b | 2959 | char need_newline = 0; |
eb160463 | 2960 | U16 reganch = (U16)((re->reganch & PMf_COMPILETIME) >> 12); |
8782bef2 | 2961 | |
155aba94 | 2962 | while((ch = *fptr++)) { |
8782bef2 GB |
2963 | if(reganch & 1) { |
2964 | reflags[left++] = ch; | |
2965 | } | |
2966 | else { | |
2967 | reflags[right--] = ch; | |
2968 | } | |
2969 | reganch >>= 1; | |
2970 | } | |
2971 | if(left != 4) { | |
2972 | reflags[left] = '-'; | |
2973 | left = 5; | |
2974 | } | |
2975 | ||
2976 | mg->mg_len = re->prelen + 4 + left; | |
ff385a1b JF |
2977 | /* |
2978 | * If /x was used, we have to worry about a regex | |
2979 | * ending with a comment later being embedded | |
2980 | * within another regex. If so, we don't want this | |
2981 | * regex's "commentization" to leak out to the | |
2982 | * right part of the enclosing regex, we must cap | |
2983 | * it with a newline. | |
2984 | * | |
2985 | * So, if /x was used, we scan backwards from the | |
2986 | * end of the regex. If we find a '#' before we | |
2987 | * find a newline, we need to add a newline | |
2988 | * ourself. If we find a '\n' first (or if we | |
2989 | * don't find '#' or '\n'), we don't need to add | |
2990 | * anything. -jfriedl | |
2991 | */ | |
2992 | if (PMf_EXTENDED & re->reganch) | |
2993 | { | |
2994 | char *endptr = re->precomp + re->prelen; | |
2995 | while (endptr >= re->precomp) | |
2996 | { | |
2997 | char c = *(endptr--); | |
2998 | if (c == '\n') | |
2999 | break; /* don't need another */ | |
3000 | if (c == '#') { | |
3001 | /* we end while in a comment, so we | |
3002 | need a newline */ | |
3003 | mg->mg_len++; /* save space for it */ | |
3004 | need_newline = 1; /* note to add it */ | |
3005 | } | |
3006 | } | |
3007 | } | |
3008 | ||
8782bef2 GB |
3009 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); |
3010 | Copy("(?", mg->mg_ptr, 2, char); | |
3011 | Copy(reflags, mg->mg_ptr+2, left, char); | |
3012 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
3013 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
ff385a1b JF |
3014 | if (need_newline) |
3015 | mg->mg_ptr[mg->mg_len - 2] = '\n'; | |
1bd3ad17 IZ |
3016 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
3017 | mg->mg_ptr[mg->mg_len] = 0; | |
3018 | } | |
3280af22 | 3019 | PL_reginterp_cnt += re->program[0].next_off; |
1bd3ad17 IZ |
3020 | *lp = mg->mg_len; |
3021 | return mg->mg_ptr; | |
f9277f47 IZ |
3022 | } |
3023 | /* Fall through */ | |
ed6116ce LW |
3024 | case SVt_NULL: |
3025 | case SVt_IV: | |
3026 | case SVt_NV: | |
3027 | case SVt_RV: | |
3028 | case SVt_PV: | |
3029 | case SVt_PVIV: | |
3030 | case SVt_PVNV: | |
81689caa HS |
3031 | case SVt_PVBM: if (SvROK(sv)) |
3032 | s = "REF"; | |
3033 | else | |
3034 | s = "SCALAR"; break; | |
ed6116ce LW |
3035 | case SVt_PVLV: s = "LVALUE"; break; |
3036 | case SVt_PVAV: s = "ARRAY"; break; | |
3037 | case SVt_PVHV: s = "HASH"; break; | |
3038 | case SVt_PVCV: s = "CODE"; break; | |
3039 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 3040 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 3041 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
3042 | default: s = "UNKNOWN"; break; |
3043 | } | |
46fc3d4c | 3044 | tsv = NEWSV(0,0); |
c86bf373 AMS |
3045 | if (SvOBJECT(sv)) { |
3046 | HV *svs = SvSTASH(sv); | |
3047 | Perl_sv_setpvf( | |
3048 | aTHX_ tsv, "%s=%s", | |
3049 | /* [20011101.072] This bandaid for C<package;> | |
3050 | should eventually be removed. AMS 20011103 */ | |
3051 | (svs ? HvNAME(svs) : "<none>"), s | |
3052 | ); | |
3053 | } | |
ed6116ce | 3054 | else |
46fc3d4c | 3055 | sv_setpv(tsv, s); |
57def98f | 3056 | Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv)); |
a0d0e21e | 3057 | goto tokensaveref; |
463ee0b2 | 3058 | } |
ed6116ce LW |
3059 | *lp = strlen(s); |
3060 | return s; | |
79072805 | 3061 | } |
0336b60e | 3062 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3063 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 3064 | report_uninit(); |
ed6116ce LW |
3065 | *lp = 0; |
3066 | return ""; | |
79072805 | 3067 | } |
79072805 | 3068 | } |
28e5dec8 JH |
3069 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3070 | /* I'm assuming that if both IV and NV are equally valid then | |
3071 | converting the IV is going to be more efficient */ | |
3072 | U32 isIOK = SvIOK(sv); | |
3073 | U32 isUIOK = SvIsUV(sv); | |
3074 | char buf[TYPE_CHARS(UV)]; | |
3075 | char *ebuf, *ptr; | |
3076 | ||
3077 | if (SvTYPE(sv) < SVt_PVIV) | |
3078 | sv_upgrade(sv, SVt_PVIV); | |
3079 | if (isUIOK) | |
3080 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3081 | else | |
3082 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
eb160463 | 3083 | SvGROW(sv, (STRLEN)(ebuf - ptr + 1)); /* inlined from sv_setpvn */ |
28e5dec8 JH |
3084 | Move(ptr,SvPVX(sv),ebuf - ptr,char); |
3085 | SvCUR_set(sv, ebuf - ptr); | |
3086 | s = SvEND(sv); | |
3087 | *s = '\0'; | |
3088 | if (isIOK) | |
3089 | SvIOK_on(sv); | |
3090 | else | |
3091 | SvIOKp_on(sv); | |
3092 | if (isUIOK) | |
3093 | SvIsUV_on(sv); | |
3094 | } | |
3095 | else if (SvNOKp(sv)) { | |
79072805 LW |
3096 | if (SvTYPE(sv) < SVt_PVNV) |
3097 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3098 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
59155cc0 | 3099 | SvGROW(sv, NV_DIG + 20); |
463ee0b2 | 3100 | s = SvPVX(sv); |
79072805 | 3101 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3102 | #ifdef apollo |
463ee0b2 | 3103 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3104 | (void)strcpy(s,"0"); |
3105 | else | |
3106 | #endif /*apollo*/ | |
bbce6d69 | 3107 | { |
2d4389e4 | 3108 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3109 | } |
79072805 | 3110 | errno = olderrno; |
a0d0e21e LW |
3111 | #ifdef FIXNEGATIVEZERO |
3112 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3113 | strcpy(s,"0"); | |
3114 | #endif | |
79072805 LW |
3115 | while (*s) s++; |
3116 | #ifdef hcx | |
3117 | if (s[-1] == '.') | |
46fc3d4c | 3118 | *--s = '\0'; |
79072805 LW |
3119 | #endif |
3120 | } | |
79072805 | 3121 | else { |
0336b60e IZ |
3122 | if (ckWARN(WARN_UNINITIALIZED) |
3123 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
1d7c1841 | 3124 | report_uninit(); |
a0d0e21e | 3125 | *lp = 0; |
25da4f38 IZ |
3126 | if (SvTYPE(sv) < SVt_PV) |
3127 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3128 | sv_upgrade(sv, SVt_PV); | |
a0d0e21e | 3129 | return ""; |
79072805 | 3130 | } |
463ee0b2 LW |
3131 | *lp = s - SvPVX(sv); |
3132 | SvCUR_set(sv, *lp); | |
79072805 | 3133 | SvPOK_on(sv); |
1d7c1841 GS |
3134 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3135 | PTR2UV(sv),SvPVX(sv))); | |
463ee0b2 | 3136 | return SvPVX(sv); |
a0d0e21e LW |
3137 | |
3138 | tokensave: | |
3139 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3140 | /* Sneaky stuff here */ | |
3141 | ||
3142 | tokensaveref: | |
46fc3d4c | 3143 | if (!tsv) |
96827780 | 3144 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3145 | sv_2mortal(tsv); |
3146 | *lp = SvCUR(tsv); | |
3147 | return SvPVX(tsv); | |
a0d0e21e LW |
3148 | } |
3149 | else { | |
3150 | STRLEN len; | |
46fc3d4c | 3151 | char *t; |
3152 | ||
3153 | if (tsv) { | |
3154 | sv_2mortal(tsv); | |
3155 | t = SvPVX(tsv); | |
3156 | len = SvCUR(tsv); | |
3157 | } | |
3158 | else { | |
96827780 MB |
3159 | t = tmpbuf; |
3160 | len = strlen(tmpbuf); | |
46fc3d4c | 3161 | } |
a0d0e21e | 3162 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3163 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3164 | t = "0"; | |
3165 | len = 1; | |
3166 | } | |
a0d0e21e LW |
3167 | #endif |
3168 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 3169 | *lp = len; |
a0d0e21e LW |
3170 | s = SvGROW(sv, len + 1); |
3171 | SvCUR_set(sv, len); | |
46fc3d4c | 3172 | (void)strcpy(s, t); |
6bf554b4 | 3173 | SvPOKp_on(sv); |
a0d0e21e LW |
3174 | return s; |
3175 | } | |
463ee0b2 LW |
3176 | } |
3177 | ||
645c22ef | 3178 | /* |
6050d10e JP |
3179 | =for apidoc sv_copypv |
3180 | ||
3181 | Copies a stringified representation of the source SV into the | |
3182 | destination SV. Automatically performs any necessary mg_get and | |
54f0641b | 3183 | coercion of numeric values into strings. Guaranteed to preserve |
6050d10e | 3184 | UTF-8 flag even from overloaded objects. Similar in nature to |
54f0641b NIS |
3185 | sv_2pv[_flags] but operates directly on an SV instead of just the |
3186 | string. Mostly uses sv_2pv_flags to do its work, except when that | |
6050d10e JP |
3187 | would lose the UTF-8'ness of the PV. |
3188 | ||
3189 | =cut | |
3190 | */ | |
3191 | ||
3192 | void | |
3193 | Perl_sv_copypv(pTHX_ SV *dsv, register SV *ssv) | |
3194 | { | |
d40b1633 | 3195 | SV *tmpsv; |
6050d10e | 3196 | |
aca0daca | 3197 | if ( SvTHINKFIRST(ssv) && SvROK(ssv) && SvAMAGIC(ssv) && |
d40b1633 | 3198 | (tmpsv = AMG_CALLun(ssv,string))) { |
03a2c403 | 3199 | if (SvTYPE(tmpsv) != SVt_RV || (SvRV(tmpsv) != SvRV(ssv))) { |
7adcf7db | 3200 | SvSetSV(dsv,tmpsv); |
03a2c403 JP |
3201 | return; |
3202 | } | |
d40b1633 AB |
3203 | } else { |
3204 | tmpsv = sv_newmortal(); | |
6050d10e JP |
3205 | } |
3206 | { | |
3207 | STRLEN len; | |
3208 | char *s; | |
3209 | s = SvPV(ssv,len); | |
3210 | sv_setpvn(tmpsv,s,len); | |
3211 | if (SvUTF8(ssv)) | |
3212 | SvUTF8_on(tmpsv); | |
3213 | else | |
3214 | SvUTF8_off(tmpsv); | |
7adcf7db | 3215 | SvSetSV(dsv,tmpsv); |
6050d10e JP |
3216 | } |
3217 | } | |
3218 | ||
3219 | /* | |
645c22ef DM |
3220 | =for apidoc sv_2pvbyte_nolen |
3221 | ||
3222 | Return a pointer to the byte-encoded representation of the SV. | |
3223 | May cause the SV to be downgraded from UTF8 as a side-effect. | |
3224 | ||
3225 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3226 | ||
3227 | =cut | |
3228 | */ | |
3229 | ||
7340a771 GS |
3230 | char * |
3231 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3232 | { | |
560a288e GS |
3233 | STRLEN n_a; |
3234 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
3235 | } |
3236 | ||
645c22ef DM |
3237 | /* |
3238 | =for apidoc sv_2pvbyte | |
3239 | ||
3240 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
3241 | to its length. May cause the SV to be downgraded from UTF8 as a | |
3242 | side-effect. | |
3243 | ||
3244 | Usually accessed via the C<SvPVbyte> macro. | |
3245 | ||
3246 | =cut | |
3247 | */ | |
3248 | ||
7340a771 GS |
3249 | char * |
3250 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3251 | { | |
0875d2fe NIS |
3252 | sv_utf8_downgrade(sv,0); |
3253 | return SvPV(sv,*lp); | |
7340a771 GS |
3254 | } |
3255 | ||
645c22ef DM |
3256 | /* |
3257 | =for apidoc sv_2pvutf8_nolen | |
3258 | ||
3259 | Return a pointer to the UTF8-encoded representation of the SV. | |
3260 | May cause the SV to be upgraded to UTF8 as a side-effect. | |
3261 | ||
3262 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3263 | ||
3264 | =cut | |
3265 | */ | |
3266 | ||
7340a771 GS |
3267 | char * |
3268 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3269 | { | |
560a288e GS |
3270 | STRLEN n_a; |
3271 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
3272 | } |
3273 | ||
645c22ef DM |
3274 | /* |
3275 | =for apidoc sv_2pvutf8 | |
3276 | ||
3277 | Return a pointer to the UTF8-encoded representation of the SV, and set *lp | |
3278 | to its length. May cause the SV to be upgraded to UTF8 as a side-effect. | |
3279 | ||
3280 | Usually accessed via the C<SvPVutf8> macro. | |
3281 | ||
3282 | =cut | |
3283 | */ | |
3284 | ||
7340a771 GS |
3285 | char * |
3286 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3287 | { | |
560a288e | 3288 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3289 | return SvPV(sv,*lp); |
7340a771 | 3290 | } |
1c846c1f | 3291 | |
645c22ef DM |
3292 | /* |
3293 | =for apidoc sv_2bool | |
3294 | ||
3295 | This function is only called on magical items, and is only used by | |
8cf8f3d1 | 3296 | sv_true() or its macro equivalent. |
645c22ef DM |
3297 | |
3298 | =cut | |
3299 | */ | |
3300 | ||
463ee0b2 | 3301 | bool |
864dbfa3 | 3302 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3303 | { |
8990e307 | 3304 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3305 | mg_get(sv); |
3306 | ||
a0d0e21e LW |
3307 | if (!SvOK(sv)) |
3308 | return 0; | |
3309 | if (SvROK(sv)) { | |
a0d0e21e | 3310 | SV* tmpsv; |
1554e226 | 3311 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
9e3013b1 | 3312 | (!SvROK(tmpsv) || (SvRV(tmpsv) != SvRV(sv)))) |
8a31060d | 3313 | return (bool)SvTRUE(tmpsv); |
a0d0e21e LW |
3314 | return SvRV(sv) != 0; |
3315 | } | |
463ee0b2 | 3316 | if (SvPOKp(sv)) { |
11343788 MB |
3317 | register XPV* Xpvtmp; |
3318 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
3319 | (*Xpvtmp->xpv_pv > '0' || | |
3320 | Xpvtmp->xpv_cur > 1 || | |
3321 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3322 | return 1; |
3323 | else | |
3324 | return 0; | |
3325 | } | |
3326 | else { | |
3327 | if (SvIOKp(sv)) | |
3328 | return SvIVX(sv) != 0; | |
3329 | else { | |
3330 | if (SvNOKp(sv)) | |
3331 | return SvNVX(sv) != 0.0; | |
3332 | else | |
3333 | return FALSE; | |
3334 | } | |
3335 | } | |
79072805 LW |
3336 | } |
3337 | ||
c461cf8f JH |
3338 | /* |
3339 | =for apidoc sv_utf8_upgrade | |
3340 | ||
3341 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3342 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3343 | Always sets the SvUTF8 flag to avoid future validity checks even |
3344 | if all the bytes have hibit clear. | |
c461cf8f | 3345 | |
13a6c0e0 JH |
3346 | This is not as a general purpose byte encoding to Unicode interface: |
3347 | use the Encode extension for that. | |
3348 | ||
8d6d96c1 HS |
3349 | =for apidoc sv_utf8_upgrade_flags |
3350 | ||
3351 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3352 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3353 | Always sets the SvUTF8 flag to avoid future validity checks even |
3354 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3355 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3356 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3357 | ||
13a6c0e0 JH |
3358 | This is not as a general purpose byte encoding to Unicode interface: |
3359 | use the Encode extension for that. | |
3360 | ||
8d6d96c1 HS |
3361 | =cut |
3362 | */ | |
3363 | ||
3364 | STRLEN | |
3365 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3366 | { | |
db42d148 | 3367 | U8 *s, *t, *e; |
511c2ff0 | 3368 | int hibit = 0; |
560a288e | 3369 | |
4411f3b6 NIS |
3370 | if (!sv) |
3371 | return 0; | |
3372 | ||
e0e62c2a NIS |
3373 | if (!SvPOK(sv)) { |
3374 | STRLEN len = 0; | |
8d6d96c1 | 3375 | (void) sv_2pv_flags(sv,&len, flags); |
e0e62c2a NIS |
3376 | if (!SvPOK(sv)) |
3377 | return len; | |
3378 | } | |
4411f3b6 NIS |
3379 | |
3380 | if (SvUTF8(sv)) | |
3381 | return SvCUR(sv); | |
560a288e | 3382 | |
db42d148 NIS |
3383 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
3384 | sv_force_normal(sv); | |
3385 | } | |
3386 | ||
9f4817db | 3387 | if (PL_encoding) |
799ef3cb | 3388 | sv_recode_to_utf8(sv, PL_encoding); |
9f4817db | 3389 | else { /* Assume Latin-1/EBCDIC */ |
0a378802 JH |
3390 | /* This function could be much more efficient if we |
3391 | * had a FLAG in SVs to signal if there are any hibit | |
3392 | * chars in the PV. Given that there isn't such a flag | |
3393 | * make the loop as fast as possible. */ | |
3394 | s = (U8 *) SvPVX(sv); | |
3395 | e = (U8 *) SvEND(sv); | |
3396 | t = s; | |
3397 | while (t < e) { | |
3398 | U8 ch = *t++; | |
3399 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) | |
3400 | break; | |
3401 | } | |
3402 | if (hibit) { | |
3403 | STRLEN len; | |
ecdeb87c | 3404 | |
0a378802 JH |
3405 | len = SvCUR(sv) + 1; /* Plus the \0 */ |
3406 | SvPVX(sv) = (char*)bytes_to_utf8((U8*)s, &len); | |
3407 | SvCUR(sv) = len - 1; | |
3408 | if (SvLEN(sv) != 0) | |
3409 | Safefree(s); /* No longer using what was there before. */ | |
3410 | SvLEN(sv) = len; /* No longer know the real size. */ | |
3411 | } | |
9f4817db JH |
3412 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ |
3413 | SvUTF8_on(sv); | |
560a288e | 3414 | } |
4411f3b6 | 3415 | return SvCUR(sv); |
560a288e GS |
3416 | } |
3417 | ||
c461cf8f JH |
3418 | /* |
3419 | =for apidoc sv_utf8_downgrade | |
3420 | ||
3421 | Attempt to convert the PV of an SV from UTF8-encoded to byte encoding. | |
3422 | This may not be possible if the PV contains non-byte encoding characters; | |
3423 | if this is the case, either returns false or, if C<fail_ok> is not | |
3424 | true, croaks. | |
3425 | ||
13a6c0e0 JH |
3426 | This is not as a general purpose Unicode to byte encoding interface: |
3427 | use the Encode extension for that. | |
3428 | ||
c461cf8f JH |
3429 | =cut |
3430 | */ | |
3431 | ||
560a288e GS |
3432 | bool |
3433 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3434 | { | |
3435 | if (SvPOK(sv) && SvUTF8(sv)) { | |
fa301091 | 3436 | if (SvCUR(sv)) { |
03cfe0ae | 3437 | U8 *s; |
652088fc | 3438 | STRLEN len; |
fa301091 | 3439 | |
652088fc JH |
3440 | if (SvREADONLY(sv) && SvFAKE(sv)) |
3441 | sv_force_normal(sv); | |
03cfe0ae NIS |
3442 | s = (U8 *) SvPV(sv, len); |
3443 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3444 | if (fail_ok) |
3445 | return FALSE; | |
3446 | else { | |
3447 | if (PL_op) | |
3448 | Perl_croak(aTHX_ "Wide character in %s", | |
53e06cf0 | 3449 | OP_DESC(PL_op)); |
fa301091 JH |
3450 | else |
3451 | Perl_croak(aTHX_ "Wide character"); | |
3452 | } | |
4b3603a4 | 3453 | } |
fa301091 | 3454 | SvCUR(sv) = len; |
67e989fb | 3455 | } |
560a288e | 3456 | } |
ffebcc3e | 3457 | SvUTF8_off(sv); |
560a288e GS |
3458 | return TRUE; |
3459 | } | |
3460 | ||
c461cf8f JH |
3461 | /* |
3462 | =for apidoc sv_utf8_encode | |
3463 | ||
3464 | Convert the PV of an SV to UTF8-encoded, but then turn off the C<SvUTF8> | |
4411f3b6 NIS |
3465 | flag so that it looks like octets again. Used as a building block |
3466 | for encode_utf8 in Encode.xs | |
c461cf8f JH |
3467 | |
3468 | =cut | |
3469 | */ | |
3470 | ||
560a288e GS |
3471 | void |
3472 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3473 | { | |
4411f3b6 | 3474 | (void) sv_utf8_upgrade(sv); |
560a288e GS |
3475 | SvUTF8_off(sv); |
3476 | } | |
3477 | ||
4411f3b6 NIS |
3478 | /* |
3479 | =for apidoc sv_utf8_decode | |
3480 | ||
3481 | Convert the octets in the PV from UTF-8 to chars. Scan for validity and then | |
645c22ef | 3482 | turn off SvUTF8 if needed so that we see characters. Used as a building block |
4411f3b6 NIS |
3483 | for decode_utf8 in Encode.xs |
3484 | ||
3485 | =cut | |
3486 | */ | |
3487 | ||
560a288e GS |
3488 | bool |
3489 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3490 | { | |
3491 | if (SvPOK(sv)) { | |
63cd0674 NIS |
3492 | U8 *c; |
3493 | U8 *e; | |
9cbac4c7 | 3494 | |
645c22ef DM |
3495 | /* The octets may have got themselves encoded - get them back as |
3496 | * bytes | |
3497 | */ | |
3498 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3499 | return FALSE; |
3500 | ||
3501 | /* it is actually just a matter of turning the utf8 flag on, but | |
3502 | * we want to make sure everything inside is valid utf8 first. | |
3503 | */ | |
63cd0674 NIS |
3504 | c = (U8 *) SvPVX(sv); |
3505 | if (!is_utf8_string(c, SvCUR(sv)+1)) | |
67e989fb | 3506 | return FALSE; |
63cd0674 | 3507 | e = (U8 *) SvEND(sv); |
511c2ff0 | 3508 | while (c < e) { |
c4d5f83a NIS |
3509 | U8 ch = *c++; |
3510 | if (!UTF8_IS_INVARIANT(ch)) { | |
67e989fb JH |
3511 | SvUTF8_on(sv); |
3512 | break; | |
3513 | } | |
560a288e | 3514 | } |
560a288e GS |
3515 | } |
3516 | return TRUE; | |
3517 | } | |
3518 | ||
954c1994 GS |
3519 | /* |
3520 | =for apidoc sv_setsv | |
3521 | ||
645c22ef DM |
3522 | Copies the contents of the source SV C<ssv> into the destination SV |
3523 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3524 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3525 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3526 | content of the destination. | |
3527 | ||
3528 | You probably want to use one of the assortment of wrappers, such as | |
3529 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3530 | C<SvSetMagicSV_nosteal>. | |
3531 | ||
8d6d96c1 HS |
3532 | =for apidoc sv_setsv_flags |
3533 | ||
645c22ef DM |
3534 | Copies the contents of the source SV C<ssv> into the destination SV |
3535 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3536 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3537 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3538 | content of the destination. | |
3539 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
3540 | C<ssv> if appropriate, else not. C<sv_setsv> and C<sv_setsv_nomg> are | |
3541 | implemented in terms of this function. | |
3542 | ||
3543 | You probably want to use one of the assortment of wrappers, such as | |
3544 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3545 | C<SvSetMagicSV_nosteal>. | |
3546 | ||
3547 | This is the primary function for copying scalars, and most other | |
3548 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3549 | |
3550 | =cut | |
3551 | */ | |
3552 | ||
3553 | void | |
3554 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3555 | { | |
8990e307 LW |
3556 | register U32 sflags; |
3557 | register int dtype; | |
3558 | register int stype; | |
463ee0b2 | 3559 | |
79072805 LW |
3560 | if (sstr == dstr) |
3561 | return; | |
2213622d | 3562 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 3563 | if (!sstr) |
3280af22 | 3564 | sstr = &PL_sv_undef; |
8990e307 LW |
3565 | stype = SvTYPE(sstr); |
3566 | dtype = SvTYPE(dstr); | |
79072805 | 3567 | |
a0d0e21e | 3568 | SvAMAGIC_off(dstr); |
9e7bc3e8 | 3569 | |
463ee0b2 | 3570 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3571 | |
8990e307 | 3572 | switch (stype) { |
79072805 | 3573 | case SVt_NULL: |
aece5585 | 3574 | undef_sstr: |
20408e3c GS |
3575 | if (dtype != SVt_PVGV) { |
3576 | (void)SvOK_off(dstr); | |
3577 | return; | |
3578 | } | |
3579 | break; | |
463ee0b2 | 3580 | case SVt_IV: |
aece5585 GA |
3581 | if (SvIOK(sstr)) { |
3582 | switch (dtype) { | |
3583 | case SVt_NULL: | |
8990e307 | 3584 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3585 | break; |
3586 | case SVt_NV: | |
8990e307 | 3587 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3588 | break; |
3589 | case SVt_RV: | |
3590 | case SVt_PV: | |
a0d0e21e | 3591 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3592 | break; |
3593 | } | |
3594 | (void)SvIOK_only(dstr); | |
3595 | SvIVX(dstr) = SvIVX(sstr); | |
25da4f38 IZ |
3596 | if (SvIsUV(sstr)) |
3597 | SvIsUV_on(dstr); | |
27c9684d AP |
3598 | if (SvTAINTED(sstr)) |
3599 | SvTAINT(dstr); | |
aece5585 | 3600 | return; |
8990e307 | 3601 | } |
aece5585 GA |
3602 | goto undef_sstr; |
3603 | ||
463ee0b2 | 3604 | case SVt_NV: |
aece5585 GA |
3605 | if (SvNOK(sstr)) { |
3606 | switch (dtype) { | |
3607 | case SVt_NULL: | |
3608 | case SVt_IV: | |
8990e307 | 3609 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3610 | break; |
3611 | case SVt_RV: | |
3612 | case SVt_PV: | |
3613 | case SVt_PVIV: | |
a0d0e21e | 3614 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3615 | break; |
3616 | } | |
3617 | SvNVX(dstr) = SvNVX(sstr); | |
3618 | (void)SvNOK_only(dstr); | |
27c9684d AP |
3619 | if (SvTAINTED(sstr)) |
3620 | SvTAINT(dstr); | |
aece5585 | 3621 | return; |
8990e307 | 3622 | } |
aece5585 GA |
3623 | goto undef_sstr; |
3624 | ||
ed6116ce | 3625 | case SVt_RV: |
8990e307 | 3626 | if (dtype < SVt_RV) |
ed6116ce | 3627 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3628 | else if (dtype == SVt_PVGV && |
3629 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { | |
3630 | sstr = SvRV(sstr); | |
a5f75d66 | 3631 | if (sstr == dstr) { |
1d7c1841 GS |
3632 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3633 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3634 | { | |
a5f75d66 | 3635 | GvIMPORTED_on(dstr); |
1d7c1841 | 3636 | } |
a5f75d66 AD |
3637 | GvMULTI_on(dstr); |
3638 | return; | |
3639 | } | |
c07a80fd | 3640 | goto glob_assign; |
3641 | } | |
ed6116ce | 3642 | break; |
463ee0b2 | 3643 | case SVt_PV: |
fc36a67e | 3644 | case SVt_PVFM: |
8990e307 | 3645 | if (dtype < SVt_PV) |
463ee0b2 | 3646 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3647 | break; |
3648 | case SVt_PVIV: | |
8990e307 | 3649 | if (dtype < SVt_PVIV) |
463ee0b2 | 3650 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3651 | break; |
3652 | case SVt_PVNV: | |
8990e307 | 3653 | if (dtype < SVt_PVNV) |
463ee0b2 | 3654 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3655 | break; |
4633a7c4 LW |
3656 | case SVt_PVAV: |
3657 | case SVt_PVHV: | |
3658 | case SVt_PVCV: | |
4633a7c4 | 3659 | case SVt_PVIO: |
533c011a | 3660 | if (PL_op) |
cea2e8a9 | 3661 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
53e06cf0 | 3662 | OP_NAME(PL_op)); |
4633a7c4 | 3663 | else |
cea2e8a9 | 3664 | Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); |
4633a7c4 LW |
3665 | break; |
3666 | ||
79072805 | 3667 | case SVt_PVGV: |
8990e307 | 3668 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3669 | glob_assign: |
a5f75d66 | 3670 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
3671 | char *name = GvNAME(sstr); |
3672 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 3673 | sv_upgrade(dstr, SVt_PVGV); |
14befaf4 | 3674 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 3675 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
3676 | GvNAME(dstr) = savepvn(name, len); |
3677 | GvNAMELEN(dstr) = len; | |
3678 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3679 | } | |
7bac28a0 | 3680 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3681 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3682 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3683 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3684 | GvNAME(dstr)); |
5bd07a3d | 3685 | |
7fb37951 AMS |
3686 | #ifdef GV_UNIQUE_CHECK |
3687 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3688 | Perl_croak(aTHX_ PL_no_modify); |
3689 | } | |
3690 | #endif | |
3691 | ||
a0d0e21e | 3692 | (void)SvOK_off(dstr); |
a5f75d66 | 3693 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3694 | gp_free((GV*)dstr); |
79072805 | 3695 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3696 | if (SvTAINTED(sstr)) |
3697 | SvTAINT(dstr); | |
1d7c1841 GS |
3698 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3699 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3700 | { | |
a5f75d66 | 3701 | GvIMPORTED_on(dstr); |
1d7c1841 | 3702 | } |
a5f75d66 | 3703 | GvMULTI_on(dstr); |
79072805 LW |
3704 | return; |
3705 | } | |
3706 | /* FALL THROUGH */ | |
3707 | ||
3708 | default: | |
8d6d96c1 | 3709 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab | 3710 | mg_get(sstr); |
eb160463 | 3711 | if ((int)SvTYPE(sstr) != stype) { |
973f89ab CS |
3712 | stype = SvTYPE(sstr); |
3713 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3714 | goto glob_assign; | |
3715 | } | |
3716 | } | |
ded42b9f | 3717 | if (stype == SVt_PVLV) |
6fc92669 | 3718 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3719 | else |
eb160463 | 3720 | (void)SvUPGRADE(dstr, (U32)stype); |
79072805 LW |
3721 | } |
3722 | ||
8990e307 LW |
3723 | sflags = SvFLAGS(sstr); |
3724 | ||
3725 | if (sflags & SVf_ROK) { | |
3726 | if (dtype >= SVt_PV) { | |
3727 | if (dtype == SVt_PVGV) { | |
3728 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3729 | SV *dref = 0; | |
a5f75d66 | 3730 | int intro = GvINTRO(dstr); |
a0d0e21e | 3731 | |
7fb37951 AMS |
3732 | #ifdef GV_UNIQUE_CHECK |
3733 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3734 | Perl_croak(aTHX_ PL_no_modify); |
3735 | } | |
3736 | #endif | |
3737 | ||
a0d0e21e | 3738 | if (intro) { |
a5f75d66 | 3739 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3740 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3741 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3742 | } |
a5f75d66 | 3743 | GvMULTI_on(dstr); |
8990e307 LW |
3744 | switch (SvTYPE(sref)) { |
3745 | case SVt_PVAV: | |
a0d0e21e LW |
3746 | if (intro) |
3747 | SAVESPTR(GvAV(dstr)); | |
3748 | else | |
3749 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3750 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3751 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3752 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3753 | { | |
a5f75d66 | 3754 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3755 | } |
8990e307 LW |
3756 | break; |
3757 | case SVt_PVHV: | |
a0d0e21e LW |
3758 | if (intro) |
3759 | SAVESPTR(GvHV(dstr)); | |
3760 | else | |
3761 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3762 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3763 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3764 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3765 | { | |
a5f75d66 | 3766 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3767 | } |
8990e307 LW |
3768 | break; |
3769 | case SVt_PVCV: | |
8ebc5c01 | 3770 | if (intro) { |
3771 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3772 | SvREFCNT_dec(GvCV(dstr)); | |
3773 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3774 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3775 | PL_sub_generation++; |
8ebc5c01 | 3776 | } |
a0d0e21e | 3777 | SAVESPTR(GvCV(dstr)); |
8ebc5c01 | 3778 | } |
68dc0745 | 3779 | else |
3780 | dref = (SV*)GvCV(dstr); | |
3781 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3782 | CV* cv = GvCV(dstr); |
4633a7c4 | 3783 | if (cv) { |
68dc0745 | 3784 | if (!GvCVGEN((GV*)dstr) && |
3785 | (CvROOT(cv) || CvXSUB(cv))) | |
3786 | { | |
7bac28a0 | 3787 | /* ahem, death to those who redefine |
3788 | * active sort subs */ | |
3280af22 NIS |
3789 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
3790 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 3791 | Perl_croak(aTHX_ |
7bac28a0 | 3792 | "Can't redefine active sort subroutine %s", |
3793 | GvENAME((GV*)dstr)); | |
beab0874 JT |
3794 | /* Redefining a sub - warning is mandatory if |
3795 | it was a const and its value changed. */ | |
3796 | if (ckWARN(WARN_REDEFINE) | |
3797 | || (CvCONST(cv) | |
3798 | && (!CvCONST((CV*)sref) | |
3799 | || sv_cmp(cv_const_sv(cv), | |
3800 | cv_const_sv((CV*)sref))))) | |
3801 | { | |
9014280d | 3802 | Perl_warner(aTHX_ packWARN(WARN_REDEFINE), |
beab0874 | 3803 | CvCONST(cv) |
910764e6 RGS |
3804 | ? "Constant subroutine %s::%s redefined" |
3805 | : "Subroutine %s::%s redefined", | |
3806 | HvNAME(GvSTASH((GV*)dstr)), | |
beab0874 JT |
3807 | GvENAME((GV*)dstr)); |
3808 | } | |
9607fc9c | 3809 | } |
fb24441d RGS |
3810 | if (!intro) |
3811 | cv_ckproto(cv, (GV*)dstr, | |
3812 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 3813 | } |
a5f75d66 | 3814 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 3815 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 3816 | GvASSUMECV_on(dstr); |
3280af22 | 3817 | PL_sub_generation++; |
a5f75d66 | 3818 | } |
39bac7f7 | 3819 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
3820 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3821 | { | |
a5f75d66 | 3822 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 3823 | } |
8990e307 | 3824 | break; |
91bba347 LW |
3825 | case SVt_PVIO: |
3826 | if (intro) | |
3827 | SAVESPTR(GvIOp(dstr)); | |
3828 | else | |
3829 | dref = (SV*)GvIOp(dstr); | |
3830 | GvIOp(dstr) = (IO*)sref; | |
3831 | break; | |
f4d13ee9 JH |
3832 | case SVt_PVFM: |
3833 | if (intro) | |
3834 | SAVESPTR(GvFORM(dstr)); | |
3835 | else | |
3836 | dref = (SV*)GvFORM(dstr); | |
3837 | GvFORM(dstr) = (CV*)sref; | |
3838 | break; | |
8990e307 | 3839 | default: |
a0d0e21e LW |
3840 | if (intro) |
3841 | SAVESPTR(GvSV(dstr)); | |
3842 | else | |
3843 | dref = (SV*)GvSV(dstr); | |
8990e307 | 3844 | GvSV(dstr) = sref; |
39bac7f7 | 3845 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
3846 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3847 | { | |
a5f75d66 | 3848 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 3849 | } |
8990e307 LW |
3850 | break; |
3851 | } | |
3852 | if (dref) | |
3853 | SvREFCNT_dec(dref); | |
a0d0e21e LW |
3854 | if (intro) |
3855 | SAVEFREESV(sref); | |
27c9684d AP |
3856 | if (SvTAINTED(sstr)) |
3857 | SvTAINT(dstr); | |
8990e307 LW |
3858 | return; |
3859 | } | |
a0d0e21e | 3860 | if (SvPVX(dstr)) { |
760ac839 | 3861 | (void)SvOOK_off(dstr); /* backoff */ |
50483b2c JD |
3862 | if (SvLEN(dstr)) |
3863 | Safefree(SvPVX(dstr)); | |
a0d0e21e LW |
3864 | SvLEN(dstr)=SvCUR(dstr)=0; |
3865 | } | |
8990e307 | 3866 | } |
a0d0e21e | 3867 | (void)SvOK_off(dstr); |
8990e307 | 3868 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 3869 | SvROK_on(dstr); |
8990e307 | 3870 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3871 | SvNOKp_on(dstr); |
3872 | /* Only set the public OK flag if the source has public OK. */ | |
3873 | if (sflags & SVf_NOK) | |
3874 | SvFLAGS(dstr) |= SVf_NOK; | |
ed6116ce LW |
3875 | SvNVX(dstr) = SvNVX(sstr); |
3876 | } | |
8990e307 | 3877 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3878 | (void)SvIOKp_on(dstr); |
3879 | if (sflags & SVf_IOK) | |
3880 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3881 | if (sflags & SVf_IVisUV) |
25da4f38 | 3882 | SvIsUV_on(dstr); |
3332b3c1 | 3883 | SvIVX(dstr) = SvIVX(sstr); |
ed6116ce | 3884 | } |
a0d0e21e LW |
3885 | if (SvAMAGIC(sstr)) { |
3886 | SvAMAGIC_on(dstr); | |
3887 | } | |
ed6116ce | 3888 | } |
8990e307 | 3889 | else if (sflags & SVp_POK) { |
79072805 LW |
3890 | |
3891 | /* | |
3892 | * Check to see if we can just swipe the string. If so, it's a | |
3893 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
3894 | * It might even be a win on short strings if SvPVX(dstr) |
3895 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
3896 | */ |
3897 | ||
ff68c719 | 3898 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 3899 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
1c846c1f | 3900 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ |
4c8f17b9 | 3901 | SvLEN(sstr) && /* and really is a string */ |
645c22ef DM |
3902 | /* and won't be needed again, potentially */ |
3903 | !(PL_op && PL_op->op_type == OP_AASSIGN)) | |
a5f75d66 | 3904 | { |
adbc6bb1 | 3905 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
3906 | if (SvOOK(dstr)) { |
3907 | SvFLAGS(dstr) &= ~SVf_OOK; | |
3908 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
3909 | } | |
50483b2c | 3910 | else if (SvLEN(dstr)) |
a5f75d66 | 3911 | Safefree(SvPVX(dstr)); |
79072805 | 3912 | } |
a5f75d66 | 3913 | (void)SvPOK_only(dstr); |
463ee0b2 | 3914 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
3915 | SvLEN_set(dstr, SvLEN(sstr)); |
3916 | SvCUR_set(dstr, SvCUR(sstr)); | |
f4e86e0f | 3917 | |
79072805 | 3918 | SvTEMP_off(dstr); |
645c22ef | 3919 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ |
79072805 LW |
3920 | SvPV_set(sstr, Nullch); |
3921 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
3922 | SvCUR_set(sstr, 0); |
3923 | SvTEMP_off(sstr); | |
79072805 | 3924 | } |
645c22ef | 3925 | else { /* have to copy actual string */ |
8990e307 | 3926 | STRLEN len = SvCUR(sstr); |
645c22ef | 3927 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ |
8990e307 LW |
3928 | Move(SvPVX(sstr),SvPVX(dstr),len,char); |
3929 | SvCUR_set(dstr, len); | |
3930 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 3931 | (void)SvPOK_only(dstr); |
79072805 | 3932 | } |
9aa983d2 | 3933 | if (sflags & SVf_UTF8) |
a7cb1f99 | 3934 | SvUTF8_on(dstr); |
79072805 | 3935 | /*SUPPRESS 560*/ |
8990e307 | 3936 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3937 | SvNOKp_on(dstr); |
3938 | if (sflags & SVf_NOK) | |
3939 | SvFLAGS(dstr) |= SVf_NOK; | |
463ee0b2 | 3940 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 3941 | } |
8990e307 | 3942 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3943 | (void)SvIOKp_on(dstr); |
3944 | if (sflags & SVf_IOK) | |
3945 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3946 | if (sflags & SVf_IVisUV) |
25da4f38 | 3947 | SvIsUV_on(dstr); |
463ee0b2 | 3948 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
3949 | } |
3950 | } | |
8990e307 | 3951 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
3952 | if (sflags & SVf_IOK) |
3953 | (void)SvIOK_only(dstr); | |
3954 | else { | |
9cbac4c7 DM |
3955 | (void)SvOK_off(dstr); |
3956 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
3957 | } |
3958 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 3959 | if (sflags & SVf_IVisUV) |
25da4f38 | 3960 | SvIsUV_on(dstr); |
3332b3c1 JH |
3961 | SvIVX(dstr) = SvIVX(sstr); |
3962 | if (sflags & SVp_NOK) { | |
3963 | if (sflags & SVf_NOK) | |
3964 | (void)SvNOK_on(dstr); | |
3965 | else | |
3966 | (void)SvNOKp_on(dstr); | |
3967 | SvNVX(dstr) = SvNVX(sstr); | |
3968 | } | |
3969 | } | |
3970 | else if (sflags & SVp_NOK) { | |
3971 | if (sflags & SVf_NOK) | |
3972 | (void)SvNOK_only(dstr); | |
3973 | else { | |
9cbac4c7 | 3974 | (void)SvOK_off(dstr); |
3332b3c1 JH |
3975 | SvNOKp_on(dstr); |
3976 | } | |
3977 | SvNVX(dstr) = SvNVX(sstr); | |
79072805 LW |
3978 | } |
3979 | else { | |
20408e3c | 3980 | if (dtype == SVt_PVGV) { |
e476b1b5 | 3981 | if (ckWARN(WARN_MISC)) |
9014280d | 3982 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Undefined value assigned to typeglob"); |
20408e3c GS |
3983 | } |
3984 | else | |
3985 | (void)SvOK_off(dstr); | |
a0d0e21e | 3986 | } |
27c9684d AP |
3987 | if (SvTAINTED(sstr)) |
3988 | SvTAINT(dstr); | |
79072805 LW |
3989 | } |
3990 | ||
954c1994 GS |
3991 | /* |
3992 | =for apidoc sv_setsv_mg | |
3993 | ||
3994 | Like C<sv_setsv>, but also handles 'set' magic. | |
3995 | ||
3996 | =cut | |
3997 | */ | |
3998 | ||
79072805 | 3999 | void |
864dbfa3 | 4000 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
4001 | { |
4002 | sv_setsv(dstr,sstr); | |
4003 | SvSETMAGIC(dstr); | |
4004 | } | |
4005 | ||
954c1994 GS |
4006 | /* |
4007 | =for apidoc sv_setpvn | |
4008 | ||
4009 | Copies a string into an SV. The C<len> parameter indicates the number of | |
4010 | bytes to be copied. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
4011 | ||
4012 | =cut | |
4013 | */ | |
4014 | ||
ef50df4b | 4015 | void |
864dbfa3 | 4016 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 4017 | { |
c6f8c383 | 4018 | register char *dptr; |
22c522df | 4019 | |
2213622d | 4020 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4021 | if (!ptr) { |
a0d0e21e | 4022 | (void)SvOK_off(sv); |
463ee0b2 LW |
4023 | return; |
4024 | } | |
22c522df JH |
4025 | else { |
4026 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
4027 | IV iv = len; | |
9c5ffd7c JH |
4028 | if (iv < 0) |
4029 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 4030 | } |
6fc92669 | 4031 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4032 | |
79072805 | 4033 | SvGROW(sv, len + 1); |
c6f8c383 GA |
4034 | dptr = SvPVX(sv); |
4035 | Move(ptr,dptr,len,char); | |
4036 | dptr[len] = '\0'; | |
79072805 | 4037 | SvCUR_set(sv, len); |
1aa99e6b | 4038 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4039 | SvTAINT(sv); |
79072805 LW |
4040 | } |
4041 | ||
954c1994 GS |
4042 | /* |
4043 | =for apidoc sv_setpvn_mg | |
4044 | ||
4045 | Like C<sv_setpvn>, but also handles 'set' magic. | |
4046 | ||
4047 | =cut | |
4048 | */ | |
4049 | ||
79072805 | 4050 | void |
864dbfa3 | 4051 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4052 | { |
4053 | sv_setpvn(sv,ptr,len); | |
4054 | SvSETMAGIC(sv); | |
4055 | } | |
4056 | ||
954c1994 GS |
4057 | /* |
4058 | =for apidoc sv_setpv | |
4059 | ||
4060 | Copies a string into an SV. The string must be null-terminated. Does not | |
4061 | handle 'set' magic. See C<sv_setpv_mg>. | |
4062 | ||
4063 | =cut | |
4064 | */ | |
4065 | ||
ef50df4b | 4066 | void |
864dbfa3 | 4067 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4068 | { |
4069 | register STRLEN len; | |
4070 | ||
2213622d | 4071 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4072 | if (!ptr) { |
a0d0e21e | 4073 | (void)SvOK_off(sv); |
463ee0b2 LW |
4074 | return; |
4075 | } | |
79072805 | 4076 | len = strlen(ptr); |
6fc92669 | 4077 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4078 | |
79072805 | 4079 | SvGROW(sv, len + 1); |
463ee0b2 | 4080 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4081 | SvCUR_set(sv, len); |
1aa99e6b | 4082 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4083 | SvTAINT(sv); |
4084 | } | |
4085 | ||
954c1994 GS |
4086 | /* |
4087 | =for apidoc sv_setpv_mg | |
4088 | ||
4089 | Like C<sv_setpv>, but also handles 'set' magic. | |
4090 | ||
4091 | =cut | |
4092 | */ | |
4093 | ||
463ee0b2 | 4094 | void |
864dbfa3 | 4095 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4096 | { |
4097 | sv_setpv(sv,ptr); | |
4098 | SvSETMAGIC(sv); | |
4099 | } | |
4100 | ||
954c1994 GS |
4101 | /* |
4102 | =for apidoc sv_usepvn | |
4103 | ||
4104 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4105 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4106 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4107 | string length, C<len>, must be supplied. This function will realloc the | |
4108 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4109 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4110 | See C<sv_usepvn_mg>. | |
4111 | ||
4112 | =cut | |
4113 | */ | |
4114 | ||
ef50df4b | 4115 | void |
864dbfa3 | 4116 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4117 | { |
2213622d | 4118 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 4119 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4120 | if (!ptr) { |
a0d0e21e | 4121 | (void)SvOK_off(sv); |
463ee0b2 LW |
4122 | return; |
4123 | } | |
a0ed51b3 | 4124 | (void)SvOOK_off(sv); |
50483b2c | 4125 | if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 LW |
4126 | Safefree(SvPVX(sv)); |
4127 | Renew(ptr, len+1, char); | |
4128 | SvPVX(sv) = ptr; | |
4129 | SvCUR_set(sv, len); | |
4130 | SvLEN_set(sv, len+1); | |
4131 | *SvEND(sv) = '\0'; | |
1aa99e6b | 4132 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4133 | SvTAINT(sv); |
79072805 LW |
4134 | } |
4135 | ||
954c1994 GS |
4136 | /* |
4137 | =for apidoc sv_usepvn_mg | |
4138 | ||
4139 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4140 | ||
4141 | =cut | |
4142 | */ | |
4143 | ||
ef50df4b | 4144 | void |
864dbfa3 | 4145 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4146 | { |
51c1089b | 4147 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4148 | SvSETMAGIC(sv); |
4149 | } | |
4150 | ||
645c22ef DM |
4151 | /* |
4152 | =for apidoc sv_force_normal_flags | |
4153 | ||
4154 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4155 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4156 | an xpvmg. The C<flags> parameter gets passed to C<sv_unref_flags()> | |
4157 | when unrefing. C<sv_force_normal> calls this function with flags set to 0. | |
4158 | ||
4159 | =cut | |
4160 | */ | |
4161 | ||
6fc92669 | 4162 | void |
840a7b70 | 4163 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4164 | { |
2213622d | 4165 | if (SvREADONLY(sv)) { |
1c846c1f NIS |
4166 | if (SvFAKE(sv)) { |
4167 | char *pvx = SvPVX(sv); | |
4168 | STRLEN len = SvCUR(sv); | |
4169 | U32 hash = SvUVX(sv); | |
4170 | SvGROW(sv, len + 1); | |
4171 | Move(pvx,SvPVX(sv),len,char); | |
4172 | *SvEND(sv) = '\0'; | |
4173 | SvFAKE_off(sv); | |
4174 | SvREADONLY_off(sv); | |
25716404 | 4175 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)len : len, hash); |
1c846c1f NIS |
4176 | } |
4177 | else if (PL_curcop != &PL_compiling) | |
cea2e8a9 | 4178 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4179 | } |
2213622d | 4180 | if (SvROK(sv)) |
840a7b70 | 4181 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4182 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4183 | sv_unglob(sv); | |
0f15f207 | 4184 | } |
1c846c1f | 4185 | |
645c22ef DM |
4186 | /* |
4187 | =for apidoc sv_force_normal | |
4188 | ||
4189 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4190 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4191 | an xpvmg. See also C<sv_force_normal_flags>. | |
4192 | ||
4193 | =cut | |
4194 | */ | |
4195 | ||
840a7b70 IZ |
4196 | void |
4197 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4198 | { | |
4199 | sv_force_normal_flags(sv, 0); | |
4200 | } | |
4201 | ||
954c1994 GS |
4202 | /* |
4203 | =for apidoc sv_chop | |
4204 | ||
1c846c1f | 4205 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4206 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4207 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4208 | string. Uses the "OOK hack". |
954c1994 GS |
4209 | |
4210 | =cut | |
4211 | */ | |
4212 | ||
79072805 | 4213 | void |
645c22ef | 4214 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
4215 | { |
4216 | register STRLEN delta; | |
4217 | ||
a0d0e21e | 4218 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4219 | return; |
2213622d | 4220 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4221 | if (SvTYPE(sv) < SVt_PVIV) |
4222 | sv_upgrade(sv,SVt_PVIV); | |
4223 | ||
4224 | if (!SvOOK(sv)) { | |
50483b2c JD |
4225 | if (!SvLEN(sv)) { /* make copy of shared string */ |
4226 | char *pvx = SvPVX(sv); | |
4227 | STRLEN len = SvCUR(sv); | |
4228 | SvGROW(sv, len + 1); | |
4229 | Move(pvx,SvPVX(sv),len,char); | |
4230 | *SvEND(sv) = '\0'; | |
4231 | } | |
463ee0b2 | 4232 | SvIVX(sv) = 0; |
79072805 LW |
4233 | SvFLAGS(sv) |= SVf_OOK; |
4234 | } | |
25da4f38 | 4235 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV); |
463ee0b2 | 4236 | delta = ptr - SvPVX(sv); |
79072805 LW |
4237 | SvLEN(sv) -= delta; |
4238 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
4239 | SvPVX(sv) += delta; |
4240 | SvIVX(sv) += delta; | |
79072805 LW |
4241 | } |
4242 | ||
954c1994 GS |
4243 | /* |
4244 | =for apidoc sv_catpvn | |
4245 | ||
4246 | Concatenates the string onto the end of the string which is in the SV. The | |
d5ce4a7c GA |
4247 | C<len> indicates number of bytes to copy. If the SV has the UTF8 |
4248 | status set, then the bytes appended should be valid UTF8. | |
4249 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. | |
954c1994 | 4250 | |
8d6d96c1 HS |
4251 | =for apidoc sv_catpvn_flags |
4252 | ||
4253 | Concatenates the string onto the end of the string which is in the SV. The | |
4254 | C<len> indicates number of bytes to copy. If the SV has the UTF8 | |
4255 | status set, then the bytes appended should be valid UTF8. | |
4256 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if | |
4257 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4258 | in terms of this function. | |
4259 | ||
4260 | =cut | |
4261 | */ | |
4262 | ||
4263 | void | |
4264 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4265 | { | |
4266 | STRLEN dlen; | |
4267 | char *dstr; | |
4268 | ||
4269 | dstr = SvPV_force_flags(dsv, dlen, flags); | |
4270 | SvGROW(dsv, dlen + slen + 1); | |
4271 | if (sstr == dstr) | |
4272 | sstr = SvPVX(dsv); | |
4273 | Move(sstr, SvPVX(dsv) + dlen, slen, char); | |
4274 | SvCUR(dsv) += slen; | |
4275 | *SvEND(dsv) = '\0'; | |
4276 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4277 | SvTAINT(dsv); | |
79072805 LW |
4278 | } |
4279 | ||
954c1994 GS |
4280 | /* |
4281 | =for apidoc sv_catpvn_mg | |
4282 | ||
4283 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4284 | ||
4285 | =cut | |
4286 | */ | |
4287 | ||
79072805 | 4288 | void |
864dbfa3 | 4289 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4290 | { |
4291 | sv_catpvn(sv,ptr,len); | |
4292 | SvSETMAGIC(sv); | |
4293 | } | |
4294 | ||
954c1994 GS |
4295 | /* |
4296 | =for apidoc sv_catsv | |
4297 | ||
13e8c8e3 JH |
4298 | Concatenates the string from SV C<ssv> onto the end of the string in |
4299 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4300 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4301 | |
8d6d96c1 HS |
4302 | =for apidoc sv_catsv_flags |
4303 | ||
4304 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4305 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4306 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4307 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4308 | ||
4309 | =cut */ | |
4310 | ||
ef50df4b | 4311 | void |
8d6d96c1 | 4312 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4313 | { |
13e8c8e3 JH |
4314 | char *spv; |
4315 | STRLEN slen; | |
46199a12 | 4316 | if (!ssv) |
79072805 | 4317 | return; |
46199a12 | 4318 | if ((spv = SvPV(ssv, slen))) { |
4fd84b44 AD |
4319 | /* sutf8 and dutf8 were type bool, but under USE_ITHREADS, |
4320 | gcc version 2.95.2 20000220 (Debian GNU/Linux) for | |
8cf8f3d1 NIS |
4321 | Linux xxx 2.2.17 on sparc64 with gcc -O2, we erroneously |
4322 | get dutf8 = 0x20000000, (i.e. SVf_UTF8) even though | |
4fd84b44 AD |
4323 | dsv->sv_flags doesn't have that bit set. |
4324 | Andy Dougherty 12 Oct 2001 | |
4325 | */ | |
4326 | I32 sutf8 = DO_UTF8(ssv); | |
4327 | I32 dutf8; | |
13e8c8e3 | 4328 | |
8d6d96c1 HS |
4329 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4330 | mg_get(dsv); | |
4331 | dutf8 = DO_UTF8(dsv); | |
4332 | ||
4333 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4334 | if (dutf8) { |
46199a12 | 4335 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4336 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4337 | |
46199a12 | 4338 | sv_utf8_upgrade(csv); |
8d6d96c1 | 4339 | spv = SvPV(csv, slen); |
13e8c8e3 | 4340 | } |
8d6d96c1 HS |
4341 | else |
4342 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4343 | } |
8d6d96c1 | 4344 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4345 | } |
79072805 LW |
4346 | } |
4347 | ||
954c1994 GS |
4348 | /* |
4349 | =for apidoc sv_catsv_mg | |
4350 | ||
4351 | Like C<sv_catsv>, but also handles 'set' magic. | |
4352 | ||
4353 | =cut | |
4354 | */ | |
4355 | ||
79072805 | 4356 | void |
46199a12 | 4357 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4358 | { |
46199a12 JH |
4359 | sv_catsv(dsv,ssv); |
4360 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4361 | } |
4362 | ||
954c1994 GS |
4363 | /* |
4364 | =for apidoc sv_catpv | |
4365 | ||
4366 | Concatenates the string onto the end of the string which is in the SV. | |
d5ce4a7c GA |
4367 | If the SV has the UTF8 status set, then the bytes appended should be |
4368 | valid UTF8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4369 | |
d5ce4a7c | 4370 | =cut */ |
954c1994 | 4371 | |
ef50df4b | 4372 | void |
0c981600 | 4373 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4374 | { |
4375 | register STRLEN len; | |
463ee0b2 | 4376 | STRLEN tlen; |
748a9306 | 4377 | char *junk; |
79072805 | 4378 | |
0c981600 | 4379 | if (!ptr) |
79072805 | 4380 | return; |
748a9306 | 4381 | junk = SvPV_force(sv, tlen); |
0c981600 | 4382 | len = strlen(ptr); |
463ee0b2 | 4383 | SvGROW(sv, tlen + len + 1); |
0c981600 JH |
4384 | if (ptr == junk) |
4385 | ptr = SvPVX(sv); | |
4386 | Move(ptr,SvPVX(sv)+tlen,len+1,char); | |
79072805 | 4387 | SvCUR(sv) += len; |
d41ff1b8 | 4388 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4389 | SvTAINT(sv); |
79072805 LW |
4390 | } |
4391 | ||
954c1994 GS |
4392 | /* |
4393 | =for apidoc sv_catpv_mg | |
4394 | ||
4395 | Like C<sv_catpv>, but also handles 'set' magic. | |
4396 | ||
4397 | =cut | |
4398 | */ | |
4399 | ||
ef50df4b | 4400 | void |
0c981600 | 4401 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4402 | { |
0c981600 | 4403 | sv_catpv(sv,ptr); |
ef50df4b GS |
4404 | SvSETMAGIC(sv); |
4405 | } | |
4406 | ||
645c22ef DM |
4407 | /* |
4408 | =for apidoc newSV | |
4409 | ||
4410 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4411 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4412 | macro. | |
4413 | ||
4414 | =cut | |
4415 | */ | |
4416 | ||
79072805 | 4417 | SV * |
864dbfa3 | 4418 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4419 | { |
4420 | register SV *sv; | |
1c846c1f | 4421 | |
4561caa4 | 4422 | new_SV(sv); |
79072805 LW |
4423 | if (len) { |
4424 | sv_upgrade(sv, SVt_PV); | |
4425 | SvGROW(sv, len + 1); | |
4426 | } | |
4427 | return sv; | |
4428 | } | |
954c1994 | 4429 | /* |
92110913 | 4430 | =for apidoc sv_magicext |
954c1994 | 4431 | |
68795e93 | 4432 | Adds magic to an SV, upgrading it if necessary. Applies the |
92110913 NIS |
4433 | supplied vtable and returns pointer to the magic added. |
4434 | ||
4435 | Note that sv_magicext will allow things that sv_magic will not. | |
68795e93 | 4436 | In particular you can add magic to SvREADONLY SVs and and more than |
92110913 | 4437 | one instance of the same 'how' |
645c22ef | 4438 | |
92110913 | 4439 | I C<namelen> is greater then zero then a savepvn() I<copy> of C<name> is stored, |
68795e93 NIS |
4440 | if C<namelen> is zero then C<name> is stored as-is and - as another special |
4441 | case - if C<(name && namelen == HEf_SVKEY)> then C<name> is assumed to contain | |
92110913 NIS |
4442 | an C<SV*> and has its REFCNT incremented |
4443 | ||
4444 | (This is now used as a subroutine by sv_magic.) | |
954c1994 GS |
4445 | |
4446 | =cut | |
4447 | */ | |
92110913 NIS |
4448 | MAGIC * |
4449 | Perl_sv_magicext(pTHX_ SV* sv, SV* obj, int how, MGVTBL *vtable, | |
4450 | const char* name, I32 namlen) | |
79072805 LW |
4451 | { |
4452 | MAGIC* mg; | |
68795e93 | 4453 | |
92110913 NIS |
4454 | if (SvTYPE(sv) < SVt_PVMG) { |
4455 | (void)SvUPGRADE(sv, SVt_PVMG); | |
463ee0b2 | 4456 | } |
79072805 LW |
4457 | Newz(702,mg, 1, MAGIC); |
4458 | mg->mg_moremagic = SvMAGIC(sv); | |
79072805 | 4459 | SvMAGIC(sv) = mg; |
75f9d97a | 4460 | |
18808301 | 4461 | /* Some magic sontains a reference loop, where the sv and object refer to |
bb03859b RS |
4462 | each other. To prevent a reference loop that would prevent such |
4463 | objects being freed, we look for such loops and if we find one we | |
87f0b213 JH |
4464 | avoid incrementing the object refcount. |
4465 | ||
4466 | Note we cannot do this to avoid self-tie loops as intervening RV must | |
4467 | have its REFCNT incremented to keep it in existence - instead we could | |
4468 | special case them in sv_free() -- NI-S | |
4469 | ||
4470 | */ | |
14befaf4 DM |
4471 | if (!obj || obj == sv || |
4472 | how == PERL_MAGIC_arylen || | |
4473 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
4474 | (SvTYPE(obj) == SVt_PVGV && |
4475 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4476 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
2628be26 | 4477 | GvFORM(obj) == (CV*)sv))) |
75f9d97a | 4478 | { |
8990e307 | 4479 | mg->mg_obj = obj; |
75f9d97a | 4480 | } |
85e6fe83 | 4481 | else { |
8990e307 | 4482 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4483 | mg->mg_flags |= MGf_REFCOUNTED; |
4484 | } | |
79072805 | 4485 | mg->mg_type = how; |
565764a8 | 4486 | mg->mg_len = namlen; |
9cbac4c7 | 4487 | if (name) { |
92110913 | 4488 | if (namlen > 0) |
1edc1566 | 4489 | mg->mg_ptr = savepvn(name, namlen); |
c6ee37c5 | 4490 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4491 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
68795e93 | 4492 | else |
92110913 | 4493 | mg->mg_ptr = (char *) name; |
9cbac4c7 | 4494 | } |
92110913 | 4495 | mg->mg_virtual = vtable; |
68795e93 | 4496 | |
92110913 NIS |
4497 | mg_magical(sv); |
4498 | if (SvGMAGICAL(sv)) | |
4499 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
4500 | return mg; | |
4501 | } | |
4502 | ||
4503 | /* | |
4504 | =for apidoc sv_magic | |
1c846c1f | 4505 | |
92110913 NIS |
4506 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4507 | then adds a new magic item of type C<how> to the head of the magic list. | |
4508 | ||
4509 | =cut | |
4510 | */ | |
4511 | ||
4512 | void | |
4513 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) | |
68795e93 | 4514 | { |
92110913 NIS |
4515 | MAGIC* mg; |
4516 | MGVTBL *vtable = 0; | |
4517 | ||
4518 | if (SvREADONLY(sv)) { | |
4519 | if (PL_curcop != &PL_compiling | |
4520 | && how != PERL_MAGIC_regex_global | |
4521 | && how != PERL_MAGIC_bm | |
4522 | && how != PERL_MAGIC_fm | |
4523 | && how != PERL_MAGIC_sv | |
4524 | ) | |
4525 | { | |
4526 | Perl_croak(aTHX_ PL_no_modify); | |
4527 | } | |
4528 | } | |
4529 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { | |
4530 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { | |
68795e93 NIS |
4531 | /* sv_magic() refuses to add a magic of the same 'how' as an |
4532 | existing one | |
92110913 NIS |
4533 | */ |
4534 | if (how == PERL_MAGIC_taint) | |
4535 | mg->mg_len |= 1; | |
4536 | return; | |
4537 | } | |
4538 | } | |
68795e93 | 4539 | |
79072805 | 4540 | switch (how) { |
14befaf4 | 4541 | case PERL_MAGIC_sv: |
92110913 | 4542 | vtable = &PL_vtbl_sv; |
79072805 | 4543 | break; |
14befaf4 | 4544 | case PERL_MAGIC_overload: |
92110913 | 4545 | vtable = &PL_vtbl_amagic; |
a0d0e21e | 4546 | break; |
14befaf4 | 4547 | case PERL_MAGIC_overload_elem: |
92110913 | 4548 | vtable = &PL_vtbl_amagicelem; |
a0d0e21e | 4549 | break; |
14befaf4 | 4550 | case PERL_MAGIC_overload_table: |
92110913 | 4551 | vtable = &PL_vtbl_ovrld; |
a0d0e21e | 4552 | break; |
14befaf4 | 4553 | case PERL_MAGIC_bm: |
92110913 | 4554 | vtable = &PL_vtbl_bm; |
79072805 | 4555 | break; |
14befaf4 | 4556 | case PERL_MAGIC_regdata: |
92110913 | 4557 | vtable = &PL_vtbl_regdata; |
6cef1e77 | 4558 | break; |
14befaf4 | 4559 | case PERL_MAGIC_regdatum: |
92110913 | 4560 | vtable = &PL_vtbl_regdatum; |
6cef1e77 | 4561 | break; |
14befaf4 | 4562 | case PERL_MAGIC_env: |
92110913 | 4563 | vtable = &PL_vtbl_env; |
79072805 | 4564 | break; |
14befaf4 | 4565 | case PERL_MAGIC_fm: |
92110913 | 4566 | vtable = &PL_vtbl_fm; |
55497cff | 4567 | break; |
14befaf4 | 4568 | case PERL_MAGIC_envelem: |
92110913 | 4569 | vtable = &PL_vtbl_envelem; |
79072805 | 4570 | break; |
14befaf4 | 4571 | case PERL_MAGIC_regex_global: |
92110913 | 4572 | vtable = &PL_vtbl_mglob; |
93a17b20 | 4573 | break; |
14befaf4 | 4574 | case PERL_MAGIC_isa: |
92110913 | 4575 | vtable = &PL_vtbl_isa; |
463ee0b2 | 4576 | break; |
14befaf4 | 4577 | case PERL_MAGIC_isaelem: |
92110913 | 4578 | vtable = &PL_vtbl_isaelem; |
463ee0b2 | 4579 | break; |
14befaf4 | 4580 | case PERL_MAGIC_nkeys: |
92110913 | 4581 | vtable = &PL_vtbl_nkeys; |
16660edb | 4582 | break; |
14befaf4 | 4583 | case PERL_MAGIC_dbfile: |
92110913 | 4584 | vtable = 0; |
93a17b20 | 4585 | break; |
14befaf4 | 4586 | case PERL_MAGIC_dbline: |
92110913 | 4587 | vtable = &PL_vtbl_dbline; |
79072805 | 4588 | break; |
4d1ff10f | 4589 | #ifdef USE_5005THREADS |
14befaf4 | 4590 | case PERL_MAGIC_mutex: |
92110913 | 4591 | vtable = &PL_vtbl_mutex; |
f93b4edd | 4592 | break; |
4d1ff10f | 4593 | #endif /* USE_5005THREADS */ |
36477c24 | 4594 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 4595 | case PERL_MAGIC_collxfrm: |
92110913 | 4596 | vtable = &PL_vtbl_collxfrm; |
bbce6d69 | 4597 | break; |
36477c24 | 4598 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 4599 | case PERL_MAGIC_tied: |
92110913 | 4600 | vtable = &PL_vtbl_pack; |
463ee0b2 | 4601 | break; |
14befaf4 DM |
4602 | case PERL_MAGIC_tiedelem: |
4603 | case PERL_MAGIC_tiedscalar: | |
92110913 | 4604 | vtable = &PL_vtbl_packelem; |
463ee0b2 | 4605 | break; |
14befaf4 | 4606 | case PERL_MAGIC_qr: |
92110913 | 4607 | vtable = &PL_vtbl_regexp; |
c277df42 | 4608 | break; |
14befaf4 | 4609 | case PERL_MAGIC_sig: |
92110913 | 4610 | vtable = &PL_vtbl_sig; |
79072805 | 4611 | break; |
14befaf4 | 4612 | case PERL_MAGIC_sigelem: |
92110913 | 4613 | vtable = &PL_vtbl_sigelem; |
79072805 | 4614 | break; |
14befaf4 | 4615 | case PERL_MAGIC_taint: |
92110913 | 4616 | vtable = &PL_vtbl_taint; |
463ee0b2 | 4617 | break; |
14befaf4 | 4618 | case PERL_MAGIC_uvar: |
92110913 | 4619 | vtable = &PL_vtbl_uvar; |
79072805 | 4620 | break; |
14befaf4 | 4621 | case PERL_MAGIC_vec: |
92110913 | 4622 | vtable = &PL_vtbl_vec; |
79072805 | 4623 | break; |
14befaf4 | 4624 | case PERL_MAGIC_substr: |
92110913 | 4625 | vtable = &PL_vtbl_substr; |
79072805 | 4626 | break; |
14befaf4 | 4627 | case PERL_MAGIC_defelem: |
92110913 | 4628 | vtable = &PL_vtbl_defelem; |
5f05dabc | 4629 | break; |
14befaf4 | 4630 | case PERL_MAGIC_glob: |
92110913 | 4631 | vtable = &PL_vtbl_glob; |
79072805 | 4632 | break; |
14befaf4 | 4633 | case PERL_MAGIC_arylen: |
92110913 | 4634 | vtable = &PL_vtbl_arylen; |
79072805 | 4635 | break; |
14befaf4 | 4636 | case PERL_MAGIC_pos: |
92110913 | 4637 | vtable = &PL_vtbl_pos; |
a0d0e21e | 4638 | break; |
14befaf4 | 4639 | case PERL_MAGIC_backref: |
92110913 | 4640 | vtable = &PL_vtbl_backref; |
810b8aa5 | 4641 | break; |
14befaf4 DM |
4642 | case PERL_MAGIC_ext: |
4643 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
4644 | /* Useful for attaching extension internal data to perl vars. */ |
4645 | /* Note that multiple extensions may clash if magical scalars */ | |
4646 | /* etc holding private data from one are passed to another. */ | |
a0d0e21e | 4647 | break; |
79072805 | 4648 | default: |
14befaf4 | 4649 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 4650 | } |
68795e93 | 4651 | |
92110913 NIS |
4652 | /* Rest of work is done else where */ |
4653 | mg = sv_magicext(sv,obj,how,vtable,name,namlen); | |
68795e93 | 4654 | |
92110913 NIS |
4655 | switch (how) { |
4656 | case PERL_MAGIC_taint: | |
4657 | mg->mg_len = 1; | |
4658 | break; | |
4659 | case PERL_MAGIC_ext: | |
4660 | case PERL_MAGIC_dbfile: | |
4661 | SvRMAGICAL_on(sv); | |
4662 | break; | |
4663 | } | |
463ee0b2 LW |
4664 | } |
4665 | ||
c461cf8f JH |
4666 | /* |
4667 | =for apidoc sv_unmagic | |
4668 | ||
645c22ef | 4669 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
4670 | |
4671 | =cut | |
4672 | */ | |
4673 | ||
463ee0b2 | 4674 | int |
864dbfa3 | 4675 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
4676 | { |
4677 | MAGIC* mg; | |
4678 | MAGIC** mgp; | |
91bba347 | 4679 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
4680 | return 0; |
4681 | mgp = &SvMAGIC(sv); | |
4682 | for (mg = *mgp; mg; mg = *mgp) { | |
4683 | if (mg->mg_type == type) { | |
4684 | MGVTBL* vtbl = mg->mg_virtual; | |
4685 | *mgp = mg->mg_moremagic; | |
1d7c1841 | 4686 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 4687 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 4688 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
92110913 | 4689 | if (mg->mg_len > 0) |
1edc1566 | 4690 | Safefree(mg->mg_ptr); |
565764a8 | 4691 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 4692 | SvREFCNT_dec((SV*)mg->mg_ptr); |
9cbac4c7 | 4693 | } |
a0d0e21e LW |
4694 | if (mg->mg_flags & MGf_REFCOUNTED) |
4695 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
4696 | Safefree(mg); |
4697 | } | |
4698 | else | |
4699 | mgp = &mg->mg_moremagic; | |
79072805 | 4700 | } |
91bba347 | 4701 | if (!SvMAGIC(sv)) { |
463ee0b2 | 4702 | SvMAGICAL_off(sv); |
06759ea0 | 4703 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
4704 | } |
4705 | ||
4706 | return 0; | |
79072805 LW |
4707 | } |
4708 | ||
c461cf8f JH |
4709 | /* |
4710 | =for apidoc sv_rvweaken | |
4711 | ||
645c22ef DM |
4712 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
4713 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
4714 | push a back-reference to this RV onto the array of backreferences | |
4715 | associated with that magic. | |
c461cf8f JH |
4716 | |
4717 | =cut | |
4718 | */ | |
4719 | ||
810b8aa5 | 4720 | SV * |
864dbfa3 | 4721 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
4722 | { |
4723 | SV *tsv; | |
4724 | if (!SvOK(sv)) /* let undefs pass */ | |
4725 | return sv; | |
4726 | if (!SvROK(sv)) | |
cea2e8a9 | 4727 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 4728 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 4729 | if (ckWARN(WARN_MISC)) |
9014280d | 4730 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Reference is already weak"); |
810b8aa5 GS |
4731 | return sv; |
4732 | } | |
4733 | tsv = SvRV(sv); | |
4734 | sv_add_backref(tsv, sv); | |
4735 | SvWEAKREF_on(sv); | |
1c846c1f | 4736 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
4737 | return sv; |
4738 | } | |
4739 | ||
645c22ef DM |
4740 | /* Give tsv backref magic if it hasn't already got it, then push a |
4741 | * back-reference to sv onto the array associated with the backref magic. | |
4742 | */ | |
4743 | ||
810b8aa5 | 4744 | STATIC void |
cea2e8a9 | 4745 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
4746 | { |
4747 | AV *av; | |
4748 | MAGIC *mg; | |
14befaf4 | 4749 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
4750 | av = (AV*)mg->mg_obj; |
4751 | else { | |
4752 | av = newAV(); | |
14befaf4 | 4753 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
810b8aa5 GS |
4754 | SvREFCNT_dec(av); /* for sv_magic */ |
4755 | } | |
4756 | av_push(av,sv); | |
4757 | } | |
4758 | ||
645c22ef DM |
4759 | /* delete a back-reference to ourselves from the backref magic associated |
4760 | * with the SV we point to. | |
4761 | */ | |
4762 | ||
1c846c1f | 4763 | STATIC void |
cea2e8a9 | 4764 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
4765 | { |
4766 | AV *av; | |
4767 | SV **svp; | |
4768 | I32 i; | |
4769 | SV *tsv = SvRV(sv); | |
c04a4dfe | 4770 | MAGIC *mg = NULL; |
14befaf4 | 4771 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 4772 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
4773 | av = (AV *)mg->mg_obj; |
4774 | svp = AvARRAY(av); | |
4775 | i = AvFILLp(av); | |
4776 | while (i >= 0) { | |
4777 | if (svp[i] == sv) { | |
4778 | svp[i] = &PL_sv_undef; /* XXX */ | |
4779 | } | |
4780 | i--; | |
4781 | } | |
4782 | } | |
4783 | ||
954c1994 GS |
4784 | /* |
4785 | =for apidoc sv_insert | |
4786 | ||
4787 | Inserts a string at the specified offset/length within the SV. Similar to | |
4788 | the Perl substr() function. | |
4789 | ||
4790 | =cut | |
4791 | */ | |
4792 | ||
79072805 | 4793 | void |
864dbfa3 | 4794 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
4795 | { |
4796 | register char *big; | |
4797 | register char *mid; | |
4798 | register char *midend; | |
4799 | register char *bigend; | |
4800 | register I32 i; | |
6ff81951 | 4801 | STRLEN curlen; |
1c846c1f | 4802 | |
79072805 | 4803 | |
8990e307 | 4804 | if (!bigstr) |
cea2e8a9 | 4805 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 4806 | SvPV_force(bigstr, curlen); |
60fa28ff | 4807 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
4808 | if (offset + len > curlen) { |
4809 | SvGROW(bigstr, offset+len+1); | |
4810 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
4811 | SvCUR_set(bigstr, offset+len); | |
4812 | } | |
79072805 | 4813 | |
69b47968 | 4814 | SvTAINT(bigstr); |
79072805 LW |
4815 | i = littlelen - len; |
4816 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 4817 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
4818 | mid = big + offset + len; |
4819 | midend = bigend = big + SvCUR(bigstr); | |
4820 | bigend += i; | |
4821 | *bigend = '\0'; | |
4822 | while (midend > mid) /* shove everything down */ | |
4823 | *--bigend = *--midend; | |
4824 | Move(little,big+offset,littlelen,char); | |
4825 | SvCUR(bigstr) += i; | |
4826 | SvSETMAGIC(bigstr); | |
4827 | return; | |
4828 | } | |
4829 | else if (i == 0) { | |
463ee0b2 | 4830 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
4831 | SvSETMAGIC(bigstr); |
4832 | return; | |
4833 | } | |
4834 | ||
463ee0b2 | 4835 | big = SvPVX(bigstr); |
79072805 LW |
4836 | mid = big + offset; |
4837 | midend = mid + len; | |
4838 | bigend = big + SvCUR(bigstr); | |
4839 | ||
4840 | if (midend > bigend) | |
cea2e8a9 | 4841 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
4842 | |
4843 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
4844 | if (littlelen) { | |
4845 | Move(little, mid, littlelen,char); | |
4846 | mid += littlelen; | |
4847 | } | |
4848 | i = bigend - midend; | |
4849 | if (i > 0) { | |
4850 | Move(midend, mid, i,char); | |
4851 | mid += i; | |
4852 | } | |
4853 | *mid = '\0'; | |
4854 | SvCUR_set(bigstr, mid - big); | |
4855 | } | |
4856 | /*SUPPRESS 560*/ | |
155aba94 | 4857 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
4858 | midend -= littlelen; |
4859 | mid = midend; | |
4860 | sv_chop(bigstr,midend-i); | |
4861 | big += i; | |
4862 | while (i--) | |
4863 | *--midend = *--big; | |
4864 | if (littlelen) | |
4865 | Move(little, mid, littlelen,char); | |
4866 | } | |
4867 | else if (littlelen) { | |
4868 | midend -= littlelen; | |
4869 | sv_chop(bigstr,midend); | |
4870 | Move(little,midend,littlelen,char); | |
4871 | } | |
4872 | else { | |
4873 | sv_chop(bigstr,midend); | |
4874 | } | |
4875 | SvSETMAGIC(bigstr); | |
4876 | } | |
4877 | ||
c461cf8f JH |
4878 | /* |
4879 | =for apidoc sv_replace | |
4880 | ||
4881 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
4882 | The target SV physically takes over ownership of the body of the source SV |
4883 | and inherits its flags; however, the target keeps any magic it owns, | |
4884 | and any magic in the source is discarded. | |
ff276b08 | 4885 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 4886 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
4887 | |
4888 | =cut | |
4889 | */ | |
79072805 LW |
4890 | |
4891 | void | |
864dbfa3 | 4892 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 LW |
4893 | { |
4894 | U32 refcnt = SvREFCNT(sv); | |
2213622d | 4895 | SV_CHECK_THINKFIRST(sv); |
0453d815 | 4896 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 4897 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Reference miscount in sv_replace()"); |
93a17b20 | 4898 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
4899 | if (SvMAGICAL(nsv)) |
4900 | mg_free(nsv); | |
4901 | else | |
4902 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 4903 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 4904 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
4905 | SvMAGICAL_off(sv); |
4906 | SvMAGIC(sv) = 0; | |
4907 | } | |
79072805 LW |
4908 | SvREFCNT(sv) = 0; |
4909 | sv_clear(sv); | |
477f5d66 | 4910 | assert(!SvREFCNT(sv)); |
79072805 LW |
4911 | StructCopy(nsv,sv,SV); |
4912 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 4913 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
463ee0b2 | 4914 | del_SV(nsv); |
79072805 LW |
4915 | } |
4916 | ||
c461cf8f JH |
4917 | /* |
4918 | =for apidoc sv_clear | |
4919 | ||
645c22ef DM |
4920 | Clear an SV: call any destructors, free up any memory used by the body, |
4921 | and free the body itself. The SV's head is I<not> freed, although | |
4922 | its type is set to all 1's so that it won't inadvertently be assumed | |
4923 | to be live during global destruction etc. | |
4924 | This function should only be called when REFCNT is zero. Most of the time | |
4925 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
4926 | instead. | |
c461cf8f JH |
4927 | |
4928 | =cut | |
4929 | */ | |
4930 | ||
79072805 | 4931 | void |
864dbfa3 | 4932 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 4933 | { |
ec12f114 | 4934 | HV* stash; |
79072805 LW |
4935 | assert(sv); |
4936 | assert(SvREFCNT(sv) == 0); | |
4937 | ||
ed6116ce | 4938 | if (SvOBJECT(sv)) { |
3280af22 | 4939 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 4940 | dSP; |
32251b26 | 4941 | CV* destructor; |
837485b6 | 4942 | SV tmpref; |
a0d0e21e | 4943 | |
837485b6 GS |
4944 | Zero(&tmpref, 1, SV); |
4945 | sv_upgrade(&tmpref, SVt_RV); | |
4946 | SvROK_on(&tmpref); | |
4947 | SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ | |
4948 | SvREFCNT(&tmpref) = 1; | |
8ebc5c01 | 4949 | |
d460ef45 | 4950 | do { |
4e8e7886 | 4951 | stash = SvSTASH(sv); |
32251b26 | 4952 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 GS |
4953 | if (destructor) { |
4954 | ENTER; | |
e788e7d3 | 4955 | PUSHSTACKi(PERLSI_DESTROY); |
837485b6 | 4956 | SvRV(&tmpref) = SvREFCNT_inc(sv); |
4e8e7886 GS |
4957 | EXTEND(SP, 2); |
4958 | PUSHMARK(SP); | |
837485b6 | 4959 | PUSHs(&tmpref); |
4e8e7886 | 4960 | PUTBACK; |
32251b26 | 4961 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR); |
4e8e7886 | 4962 | SvREFCNT(sv)--; |
d3acc0f7 | 4963 | POPSTACK; |
3095d977 | 4964 | SPAGAIN; |
4e8e7886 GS |
4965 | LEAVE; |
4966 | } | |
4967 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 4968 | |
837485b6 | 4969 | del_XRV(SvANY(&tmpref)); |
6f44e0a4 JP |
4970 | |
4971 | if (SvREFCNT(sv)) { | |
4972 | if (PL_in_clean_objs) | |
cea2e8a9 | 4973 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
6f44e0a4 JP |
4974 | HvNAME(stash)); |
4975 | /* DESTROY gave object new lease on life */ | |
4976 | return; | |
4977 | } | |
a0d0e21e | 4978 | } |
4e8e7886 | 4979 | |
a0d0e21e | 4980 | if (SvOBJECT(sv)) { |
4e8e7886 | 4981 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
4982 | SvOBJECT_off(sv); /* Curse the object. */ |
4983 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 4984 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 4985 | } |
463ee0b2 | 4986 | } |
524189f1 JH |
4987 | if (SvTYPE(sv) >= SVt_PVMG) { |
4988 | if (SvMAGIC(sv)) | |
4989 | mg_free(sv); | |
4990 | if (SvFLAGS(sv) & SVpad_TYPED) | |
4991 | SvREFCNT_dec(SvSTASH(sv)); | |
4992 | } | |
ec12f114 | 4993 | stash = NULL; |
79072805 | 4994 | switch (SvTYPE(sv)) { |
8990e307 | 4995 | case SVt_PVIO: |
df0bd2f4 GS |
4996 | if (IoIFP(sv) && |
4997 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 4998 | IoIFP(sv) != PerlIO_stdout() && |
4999 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 5000 | { |
f2b5be74 | 5001 | io_close((IO*)sv, FALSE); |
93578b34 | 5002 | } |
1d7c1841 | 5003 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 5004 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 5005 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
5006 | Safefree(IoTOP_NAME(sv)); |
5007 | Safefree(IoFMT_NAME(sv)); | |
5008 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 5009 | /* FALL THROUGH */ |
79072805 | 5010 | case SVt_PVBM: |
a0d0e21e | 5011 | goto freescalar; |
79072805 | 5012 | case SVt_PVCV: |
748a9306 | 5013 | case SVt_PVFM: |
85e6fe83 | 5014 | cv_undef((CV*)sv); |
a0d0e21e | 5015 | goto freescalar; |
79072805 | 5016 | case SVt_PVHV: |
85e6fe83 | 5017 | hv_undef((HV*)sv); |
a0d0e21e | 5018 | break; |
79072805 | 5019 | case SVt_PVAV: |
85e6fe83 | 5020 | av_undef((AV*)sv); |
a0d0e21e | 5021 | break; |
02270b4e GS |
5022 | case SVt_PVLV: |
5023 | SvREFCNT_dec(LvTARG(sv)); | |
5024 | goto freescalar; | |
a0d0e21e | 5025 | case SVt_PVGV: |
1edc1566 | 5026 | gp_free((GV*)sv); |
a0d0e21e | 5027 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
5028 | /* cannot decrease stash refcount yet, as we might recursively delete |
5029 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
5030 | of stash until current sv is completely gone. | |
5031 | -- JohnPC, 27 Mar 1998 */ | |
5032 | stash = GvSTASH(sv); | |
a0d0e21e | 5033 | /* FALL THROUGH */ |
79072805 | 5034 | case SVt_PVMG: |
79072805 LW |
5035 | case SVt_PVNV: |
5036 | case SVt_PVIV: | |
a0d0e21e LW |
5037 | freescalar: |
5038 | (void)SvOOK_off(sv); | |
79072805 LW |
5039 | /* FALL THROUGH */ |
5040 | case SVt_PV: | |
a0d0e21e | 5041 | case SVt_RV: |
810b8aa5 GS |
5042 | if (SvROK(sv)) { |
5043 | if (SvWEAKREF(sv)) | |
5044 | sv_del_backref(sv); | |
5045 | else | |
5046 | SvREFCNT_dec(SvRV(sv)); | |
5047 | } | |
1edc1566 | 5048 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 5049 | Safefree(SvPVX(sv)); |
1c846c1f | 5050 | else if (SvPVX(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
25716404 GS |
5051 | unsharepvn(SvPVX(sv), |
5052 | SvUTF8(sv) ? -(I32)SvCUR(sv) : SvCUR(sv), | |
5053 | SvUVX(sv)); | |
1c846c1f NIS |
5054 | SvFAKE_off(sv); |
5055 | } | |
79072805 | 5056 | break; |
a0d0e21e | 5057 | /* |
79072805 | 5058 | case SVt_NV: |
79072805 | 5059 | case SVt_IV: |
79072805 LW |
5060 | case SVt_NULL: |
5061 | break; | |
a0d0e21e | 5062 | */ |
79072805 LW |
5063 | } |
5064 | ||
5065 | switch (SvTYPE(sv)) { | |
5066 | case SVt_NULL: | |
5067 | break; | |
79072805 LW |
5068 | case SVt_IV: |
5069 | del_XIV(SvANY(sv)); | |
5070 | break; | |
5071 | case SVt_NV: | |
5072 | del_XNV(SvANY(sv)); | |
5073 | break; | |
ed6116ce LW |
5074 | case SVt_RV: |
5075 | del_XRV(SvANY(sv)); | |
5076 | break; | |
79072805 LW |
5077 | case SVt_PV: |
5078 | del_XPV(SvANY(sv)); | |
5079 | break; | |
5080 | case SVt_PVIV: | |
5081 | del_XPVIV(SvANY(sv)); | |
5082 | break; | |
5083 | case SVt_PVNV: | |
5084 | del_XPVNV(SvANY(sv)); | |
5085 | break; | |
5086 | case SVt_PVMG: | |
5087 | del_XPVMG(SvANY(sv)); | |
5088 | break; | |
5089 | case SVt_PVLV: | |
5090 | del_XPVLV(SvANY(sv)); | |
5091 | break; | |
5092 | case SVt_PVAV: | |
5093 | del_XPVAV(SvANY(sv)); | |
5094 | break; | |
5095 | case SVt_PVHV: | |
5096 | del_XPVHV(SvANY(sv)); | |
5097 | break; | |
5098 | case SVt_PVCV: | |
5099 | del_XPVCV(SvANY(sv)); | |
5100 | break; | |
5101 | case SVt_PVGV: | |
5102 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
5103 | /* code duplication for increased performance. */ |
5104 | SvFLAGS(sv) &= SVf_BREAK; | |
5105 | SvFLAGS(sv) |= SVTYPEMASK; | |
5106 | /* decrease refcount of the stash that owns this GV, if any */ | |
5107 | if (stash) | |
5108 | SvREFCNT_dec(stash); | |
5109 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
5110 | case SVt_PVBM: |
5111 | del_XPVBM(SvANY(sv)); | |
5112 | break; | |
5113 | case SVt_PVFM: | |
5114 | del_XPVFM(SvANY(sv)); | |
5115 | break; | |
8990e307 LW |
5116 | case SVt_PVIO: |
5117 | del_XPVIO(SvANY(sv)); | |
5118 | break; | |
79072805 | 5119 | } |
a0d0e21e | 5120 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 5121 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
5122 | } |
5123 | ||
645c22ef DM |
5124 | /* |
5125 | =for apidoc sv_newref | |
5126 | ||
5127 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5128 | instead. | |
5129 | ||
5130 | =cut | |
5131 | */ | |
5132 | ||
79072805 | 5133 | SV * |
864dbfa3 | 5134 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5135 | { |
463ee0b2 | 5136 | if (sv) |
dce16143 | 5137 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
5138 | return sv; |
5139 | } | |
5140 | ||
c461cf8f JH |
5141 | /* |
5142 | =for apidoc sv_free | |
5143 | ||
645c22ef DM |
5144 | Decrement an SV's reference count, and if it drops to zero, call |
5145 | C<sv_clear> to invoke destructors and free up any memory used by | |
5146 | the body; finally, deallocate the SV's head itself. | |
5147 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5148 | |
5149 | =cut | |
5150 | */ | |
5151 | ||
79072805 | 5152 | void |
864dbfa3 | 5153 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5154 | { |
dce16143 MB |
5155 | int refcount_is_zero; |
5156 | ||
79072805 LW |
5157 | if (!sv) |
5158 | return; | |
a0d0e21e LW |
5159 | if (SvREFCNT(sv) == 0) { |
5160 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5161 | /* this SV's refcnt has been artificially decremented to |
5162 | * trigger cleanup */ | |
a0d0e21e | 5163 | return; |
3280af22 | 5164 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5165 | return; |
d689ffdd JP |
5166 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5167 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5168 | SvREFCNT(sv) = (~(U32)0)/2; | |
5169 | return; | |
5170 | } | |
0453d815 | 5171 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 5172 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Attempt to free unreferenced scalar"); |
79072805 LW |
5173 | return; |
5174 | } | |
dce16143 | 5175 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
b881518d | 5176 | if (!refcount_is_zero) |
8990e307 | 5177 | return; |
463ee0b2 LW |
5178 | #ifdef DEBUGGING |
5179 | if (SvTEMP(sv)) { | |
0453d815 | 5180 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 5181 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
1d7c1841 GS |
5182 | "Attempt to free temp prematurely: SV 0x%"UVxf, |
5183 | PTR2UV(sv)); | |
79072805 | 5184 | return; |
79072805 | 5185 | } |
463ee0b2 | 5186 | #endif |
d689ffdd JP |
5187 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5188 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5189 | SvREFCNT(sv) = (~(U32)0)/2; | |
5190 | return; | |
5191 | } | |
79072805 | 5192 | sv_clear(sv); |
477f5d66 CS |
5193 | if (! SvREFCNT(sv)) |
5194 | del_SV(sv); | |
79072805 LW |
5195 | } |
5196 | ||
954c1994 GS |
5197 | /* |
5198 | =for apidoc sv_len | |
5199 | ||
645c22ef DM |
5200 | Returns the length of the string in the SV. Handles magic and type |
5201 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5202 | |
5203 | =cut | |
5204 | */ | |
5205 | ||
79072805 | 5206 | STRLEN |
864dbfa3 | 5207 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5208 | { |
463ee0b2 | 5209 | STRLEN len; |
79072805 LW |
5210 | |
5211 | if (!sv) | |
5212 | return 0; | |
5213 | ||
8990e307 | 5214 | if (SvGMAGICAL(sv)) |
565764a8 | 5215 | len = mg_length(sv); |
8990e307 | 5216 | else |
497b47a8 | 5217 | (void)SvPV(sv, len); |
463ee0b2 | 5218 | return len; |
79072805 LW |
5219 | } |
5220 | ||
c461cf8f JH |
5221 | /* |
5222 | =for apidoc sv_len_utf8 | |
5223 | ||
5224 | Returns the number of characters in the string in an SV, counting wide | |
645c22ef | 5225 | UTF8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5226 | |
5227 | =cut | |
5228 | */ | |
5229 | ||
a0ed51b3 | 5230 | STRLEN |
864dbfa3 | 5231 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5232 | { |
a0ed51b3 LW |
5233 | if (!sv) |
5234 | return 0; | |
5235 | ||
a0ed51b3 | 5236 | if (SvGMAGICAL(sv)) |
b76347f2 | 5237 | return mg_length(sv); |
a0ed51b3 | 5238 | else |
b76347f2 JH |
5239 | { |
5240 | STRLEN len; | |
5241 | U8 *s = (U8*)SvPV(sv, len); | |
5242 | ||
d6efbbad | 5243 | return Perl_utf8_length(aTHX_ s, s + len); |
a0ed51b3 | 5244 | } |
a0ed51b3 LW |
5245 | } |
5246 | ||
645c22ef DM |
5247 | /* |
5248 | =for apidoc sv_pos_u2b | |
5249 | ||
5250 | Converts the value pointed to by offsetp from a count of UTF8 chars from | |
5251 | the start of the string, to a count of the equivalent number of bytes; if | |
5252 | lenp is non-zero, it does the same to lenp, but this time starting from | |
5253 | the offset, rather than from the start of the string. Handles magic and | |
5254 | type coercion. | |
5255 | ||
5256 | =cut | |
5257 | */ | |
5258 | ||
a0ed51b3 | 5259 | void |
864dbfa3 | 5260 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 5261 | { |
dfe13c55 GS |
5262 | U8 *start; |
5263 | U8 *s; | |
5264 | U8 *send; | |
a0ed51b3 LW |
5265 | I32 uoffset = *offsetp; |
5266 | STRLEN len; | |
5267 | ||
5268 | if (!sv) | |
5269 | return; | |
5270 | ||
dfe13c55 | 5271 | start = s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
5272 | send = s + len; |
5273 | while (s < send && uoffset--) | |
5274 | s += UTF8SKIP(s); | |
bb40f870 GA |
5275 | if (s >= send) |
5276 | s = send; | |
a0ed51b3 LW |
5277 | *offsetp = s - start; |
5278 | if (lenp) { | |
5279 | I32 ulen = *lenp; | |
5280 | start = s; | |
5281 | while (s < send && ulen--) | |
5282 | s += UTF8SKIP(s); | |
bb40f870 GA |
5283 | if (s >= send) |
5284 | s = send; | |
a0ed51b3 LW |
5285 | *lenp = s - start; |
5286 | } | |
5287 | return; | |
5288 | } | |
5289 | ||
645c22ef DM |
5290 | /* |
5291 | =for apidoc sv_pos_b2u | |
5292 | ||
5293 | Converts the value pointed to by offsetp from a count of bytes from the | |
5294 | start of the string, to a count of the equivalent number of UTF8 chars. | |
5295 | Handles magic and type coercion. | |
5296 | ||
5297 | =cut | |
5298 | */ | |
5299 | ||
a0ed51b3 | 5300 | void |
864dbfa3 | 5301 | Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp) |
a0ed51b3 | 5302 | { |
dfe13c55 GS |
5303 | U8 *s; |
5304 | U8 *send; | |
a0ed51b3 LW |
5305 | STRLEN len; |
5306 | ||
5307 | if (!sv) | |
5308 | return; | |
5309 | ||
dfe13c55 | 5310 | s = (U8*)SvPV(sv, len); |
eb160463 | 5311 | if ((I32)len < *offsetp) |
a0dbb045 | 5312 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
a0ed51b3 LW |
5313 | send = s + *offsetp; |
5314 | len = 0; | |
5315 | while (s < send) { | |
cc07378b JH |
5316 | STRLEN n = 1; |
5317 | /* Call utf8n_to_uvchr() to validate the sequence | |
5318 | * (unless a simple non-UTF character) */ | |
5319 | if (!UTF8_IS_INVARIANT(*s)) | |
5320 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
2b9d42f0 | 5321 | if (n > 0) { |
a0dbb045 JH |
5322 | s += n; |
5323 | len++; | |
5324 | } | |
5325 | else | |
5326 | break; | |
a0ed51b3 LW |
5327 | } |
5328 | *offsetp = len; | |
5329 | return; | |
5330 | } | |
5331 | ||
954c1994 GS |
5332 | /* |
5333 | =for apidoc sv_eq | |
5334 | ||
5335 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
5336 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5337 | coerce its args to strings if necessary. | |
954c1994 GS |
5338 | |
5339 | =cut | |
5340 | */ | |
5341 | ||
79072805 | 5342 | I32 |
e01b9e88 | 5343 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 LW |
5344 | { |
5345 | char *pv1; | |
463ee0b2 | 5346 | STRLEN cur1; |
79072805 | 5347 | char *pv2; |
463ee0b2 | 5348 | STRLEN cur2; |
e01b9e88 | 5349 | I32 eq = 0; |
553e1bcc AT |
5350 | char *tpv = Nullch; |
5351 | SV* svrecode = Nullsv; | |
79072805 | 5352 | |
e01b9e88 | 5353 | if (!sv1) { |
79072805 LW |
5354 | pv1 = ""; |
5355 | cur1 = 0; | |
5356 | } | |
463ee0b2 | 5357 | else |
e01b9e88 | 5358 | pv1 = SvPV(sv1, cur1); |
79072805 | 5359 | |
e01b9e88 SC |
5360 | if (!sv2){ |
5361 | pv2 = ""; | |
5362 | cur2 = 0; | |
92d29cee | 5363 | } |
e01b9e88 SC |
5364 | else |
5365 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5366 | |
cf48d248 | 5367 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5368 | /* Differing utf8ness. |
5369 | * Do not UTF8size the comparands as a side-effect. */ | |
5370 | if (PL_encoding) { | |
5371 | if (SvUTF8(sv1)) { | |
553e1bcc AT |
5372 | svrecode = newSVpvn(pv2, cur2); |
5373 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5374 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
5375 | } |
5376 | else { | |
553e1bcc AT |
5377 | svrecode = newSVpvn(pv1, cur1); |
5378 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5379 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
5380 | } |
5381 | /* Now both are in UTF-8. */ | |
5382 | if (cur1 != cur2) | |
5383 | return FALSE; | |
5384 | } | |
5385 | else { | |
5386 | bool is_utf8 = TRUE; | |
5387 | ||
5388 | if (SvUTF8(sv1)) { | |
5389 | /* sv1 is the UTF-8 one, | |
5390 | * if is equal it must be downgrade-able */ | |
5391 | char *pv = (char*)bytes_from_utf8((U8*)pv1, | |
5392 | &cur1, &is_utf8); | |
5393 | if (pv != pv1) | |
553e1bcc | 5394 | pv1 = tpv = pv; |
799ef3cb JH |
5395 | } |
5396 | else { | |
5397 | /* sv2 is the UTF-8 one, | |
5398 | * if is equal it must be downgrade-able */ | |
5399 | char *pv = (char *)bytes_from_utf8((U8*)pv2, | |
5400 | &cur2, &is_utf8); | |
5401 | if (pv != pv2) | |
553e1bcc | 5402 | pv2 = tpv = pv; |
799ef3cb JH |
5403 | } |
5404 | if (is_utf8) { | |
5405 | /* Downgrade not possible - cannot be eq */ | |
5406 | return FALSE; | |
5407 | } | |
5408 | } | |
cf48d248 JH |
5409 | } |
5410 | ||
5411 | if (cur1 == cur2) | |
5412 | eq = memEQ(pv1, pv2, cur1); | |
e01b9e88 | 5413 | |
553e1bcc AT |
5414 | if (svrecode) |
5415 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5416 | |
553e1bcc AT |
5417 | if (tpv) |
5418 | Safefree(tpv); | |
cf48d248 | 5419 | |
e01b9e88 | 5420 | return eq; |
79072805 LW |
5421 | } |
5422 | ||
954c1994 GS |
5423 | /* |
5424 | =for apidoc sv_cmp | |
5425 | ||
5426 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
5427 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
5428 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5429 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
5430 | |
5431 | =cut | |
5432 | */ | |
5433 | ||
79072805 | 5434 | I32 |
e01b9e88 | 5435 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5436 | { |
560a288e | 5437 | STRLEN cur1, cur2; |
553e1bcc | 5438 | char *pv1, *pv2, *tpv = Nullch; |
cf48d248 | 5439 | I32 cmp; |
553e1bcc | 5440 | SV *svrecode = Nullsv; |
560a288e | 5441 | |
e01b9e88 SC |
5442 | if (!sv1) { |
5443 | pv1 = ""; | |
560a288e GS |
5444 | cur1 = 0; |
5445 | } | |
e01b9e88 SC |
5446 | else |
5447 | pv1 = SvPV(sv1, cur1); | |
560a288e | 5448 | |
553e1bcc | 5449 | if (!sv2) { |
e01b9e88 | 5450 | pv2 = ""; |
560a288e GS |
5451 | cur2 = 0; |
5452 | } | |
e01b9e88 SC |
5453 | else |
5454 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5455 | |
cf48d248 | 5456 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5457 | /* Differing utf8ness. |
5458 | * Do not UTF8size the comparands as a side-effect. */ | |
cf48d248 | 5459 | if (SvUTF8(sv1)) { |
799ef3cb | 5460 | if (PL_encoding) { |
553e1bcc AT |
5461 | svrecode = newSVpvn(pv2, cur2); |
5462 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5463 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
5464 | } |
5465 | else { | |
553e1bcc | 5466 | pv2 = tpv = (char*)bytes_to_utf8((U8*)pv2, &cur2); |
799ef3cb | 5467 | } |
cf48d248 JH |
5468 | } |
5469 | else { | |
799ef3cb | 5470 | if (PL_encoding) { |
553e1bcc AT |
5471 | svrecode = newSVpvn(pv1, cur1); |
5472 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5473 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
5474 | } |
5475 | else { | |
553e1bcc | 5476 | pv1 = tpv = (char*)bytes_to_utf8((U8*)pv1, &cur1); |
799ef3cb | 5477 | } |
cf48d248 JH |
5478 | } |
5479 | } | |
5480 | ||
e01b9e88 | 5481 | if (!cur1) { |
cf48d248 | 5482 | cmp = cur2 ? -1 : 0; |
e01b9e88 | 5483 | } else if (!cur2) { |
cf48d248 JH |
5484 | cmp = 1; |
5485 | } else { | |
5486 | I32 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); | |
e01b9e88 SC |
5487 | |
5488 | if (retval) { | |
cf48d248 | 5489 | cmp = retval < 0 ? -1 : 1; |
e01b9e88 | 5490 | } else if (cur1 == cur2) { |
cf48d248 JH |
5491 | cmp = 0; |
5492 | } else { | |
5493 | cmp = cur1 < cur2 ? -1 : 1; | |
e01b9e88 | 5494 | } |
cf48d248 | 5495 | } |
16660edb | 5496 | |
553e1bcc AT |
5497 | if (svrecode) |
5498 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5499 | |
553e1bcc AT |
5500 | if (tpv) |
5501 | Safefree(tpv); | |
cf48d248 JH |
5502 | |
5503 | return cmp; | |
bbce6d69 | 5504 | } |
16660edb | 5505 | |
c461cf8f JH |
5506 | /* |
5507 | =for apidoc sv_cmp_locale | |
5508 | ||
645c22ef DM |
5509 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
5510 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
5511 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
5512 | |
5513 | =cut | |
5514 | */ | |
5515 | ||
bbce6d69 | 5516 | I32 |
864dbfa3 | 5517 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 5518 | { |
36477c24 | 5519 | #ifdef USE_LOCALE_COLLATE |
16660edb | 5520 | |
bbce6d69 | 5521 | char *pv1, *pv2; |
5522 | STRLEN len1, len2; | |
5523 | I32 retval; | |
16660edb | 5524 | |
3280af22 | 5525 | if (PL_collation_standard) |
bbce6d69 | 5526 | goto raw_compare; |
16660edb | 5527 | |
bbce6d69 | 5528 | len1 = 0; |
8ac85365 | 5529 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 5530 | len2 = 0; |
8ac85365 | 5531 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 5532 | |
bbce6d69 | 5533 | if (!pv1 || !len1) { |
5534 | if (pv2 && len2) | |
5535 | return -1; | |
5536 | else | |
5537 | goto raw_compare; | |
5538 | } | |
5539 | else { | |
5540 | if (!pv2 || !len2) | |
5541 | return 1; | |
5542 | } | |
16660edb | 5543 | |
bbce6d69 | 5544 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 5545 | |
bbce6d69 | 5546 | if (retval) |
16660edb | 5547 | return retval < 0 ? -1 : 1; |
5548 | ||
bbce6d69 | 5549 | /* |
5550 | * When the result of collation is equality, that doesn't mean | |
5551 | * that there are no differences -- some locales exclude some | |
5552 | * characters from consideration. So to avoid false equalities, | |
5553 | * we use the raw string as a tiebreaker. | |
5554 | */ | |
16660edb | 5555 | |
bbce6d69 | 5556 | raw_compare: |
5557 | /* FALL THROUGH */ | |
16660edb | 5558 | |
36477c24 | 5559 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 5560 | |
bbce6d69 | 5561 | return sv_cmp(sv1, sv2); |
5562 | } | |
79072805 | 5563 | |
645c22ef | 5564 | |
36477c24 | 5565 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 5566 | |
7a4c00b4 | 5567 | /* |
645c22ef DM |
5568 | =for apidoc sv_collxfrm |
5569 | ||
5570 | Add Collate Transform magic to an SV if it doesn't already have it. | |
5571 | ||
5572 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
5573 | scalar data of the variable, but transformed to such a format that a normal | |
5574 | memory comparison can be used to compare the data according to the locale | |
5575 | settings. | |
5576 | ||
5577 | =cut | |
5578 | */ | |
5579 | ||
bbce6d69 | 5580 | char * |
864dbfa3 | 5581 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 5582 | { |
7a4c00b4 | 5583 | MAGIC *mg; |
16660edb | 5584 | |
14befaf4 | 5585 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 5586 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 5587 | char *s, *xf; |
5588 | STRLEN len, xlen; | |
5589 | ||
7a4c00b4 | 5590 | if (mg) |
5591 | Safefree(mg->mg_ptr); | |
bbce6d69 | 5592 | s = SvPV(sv, len); |
5593 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 5594 | if (SvREADONLY(sv)) { |
5595 | SAVEFREEPV(xf); | |
5596 | *nxp = xlen; | |
3280af22 | 5597 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 5598 | } |
7a4c00b4 | 5599 | if (! mg) { |
14befaf4 DM |
5600 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
5601 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 5602 | assert(mg); |
bbce6d69 | 5603 | } |
7a4c00b4 | 5604 | mg->mg_ptr = xf; |
565764a8 | 5605 | mg->mg_len = xlen; |
7a4c00b4 | 5606 | } |
5607 | else { | |
ff0cee69 | 5608 | if (mg) { |
5609 | mg->mg_ptr = NULL; | |
565764a8 | 5610 | mg->mg_len = -1; |
ff0cee69 | 5611 | } |
bbce6d69 | 5612 | } |
5613 | } | |
7a4c00b4 | 5614 | if (mg && mg->mg_ptr) { |
565764a8 | 5615 | *nxp = mg->mg_len; |
3280af22 | 5616 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 5617 | } |
5618 | else { | |
5619 | *nxp = 0; | |
5620 | return NULL; | |
16660edb | 5621 | } |
79072805 LW |
5622 | } |
5623 | ||
36477c24 | 5624 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 5625 | |
c461cf8f JH |
5626 | /* |
5627 | =for apidoc sv_gets | |
5628 | ||
5629 | Get a line from the filehandle and store it into the SV, optionally | |
5630 | appending to the currently-stored string. | |
5631 | ||
5632 | =cut | |
5633 | */ | |
5634 | ||
79072805 | 5635 | char * |
864dbfa3 | 5636 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 5637 | { |
c07a80fd | 5638 | char *rsptr; |
5639 | STRLEN rslen; | |
5640 | register STDCHAR rslast; | |
5641 | register STDCHAR *bp; | |
5642 | register I32 cnt; | |
9c5ffd7c | 5643 | I32 i = 0; |
8bfdd7d9 | 5644 | I32 rspara = 0; |
c07a80fd | 5645 | |
2213622d | 5646 | SV_CHECK_THINKFIRST(sv); |
6fc92669 | 5647 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 5648 | |
ff68c719 | 5649 | SvSCREAM_off(sv); |
c07a80fd | 5650 | |
8bfdd7d9 HS |
5651 | if (PL_curcop == &PL_compiling) { |
5652 | /* we always read code in line mode */ | |
5653 | rsptr = "\n"; | |
5654 | rslen = 1; | |
5655 | } | |
5656 | else if (RsSNARF(PL_rs)) { | |
c07a80fd | 5657 | rsptr = NULL; |
5658 | rslen = 0; | |
5659 | } | |
3280af22 | 5660 | else if (RsRECORD(PL_rs)) { |
5b2b9c68 HM |
5661 | I32 recsize, bytesread; |
5662 | char *buffer; | |
5663 | ||
5664 | /* Grab the size of the record we're getting */ | |
3280af22 | 5665 | recsize = SvIV(SvRV(PL_rs)); |
5b2b9c68 | 5666 | (void)SvPOK_only(sv); /* Validate pointer */ |
eb160463 | 5667 | buffer = SvGROW(sv, (STRLEN)(recsize + 1)); |
5b2b9c68 HM |
5668 | /* Go yank in */ |
5669 | #ifdef VMS | |
5670 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
5671 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
5672 | /* doing, but we've got no other real choice */ | |
5673 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); | |
5674 | #else | |
5675 | bytesread = PerlIO_read(fp, buffer, recsize); | |
5676 | #endif | |
5677 | SvCUR_set(sv, bytesread); | |
e670df4e | 5678 | buffer[bytesread] = '\0'; |
7d59b7e4 NIS |
5679 | if (PerlIO_isutf8(fp)) |
5680 | SvUTF8_on(sv); | |
5681 | else | |
5682 | SvUTF8_off(sv); | |
5b2b9c68 HM |
5683 | return(SvCUR(sv) ? SvPVX(sv) : Nullch); |
5684 | } | |
3280af22 | 5685 | else if (RsPARA(PL_rs)) { |
c07a80fd | 5686 | rsptr = "\n\n"; |
5687 | rslen = 2; | |
8bfdd7d9 | 5688 | rspara = 1; |
c07a80fd | 5689 | } |
7d59b7e4 NIS |
5690 | else { |
5691 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
5692 | if (PerlIO_isutf8(fp)) { | |
5693 | rsptr = SvPVutf8(PL_rs, rslen); | |
5694 | } | |
5695 | else { | |
5696 | if (SvUTF8(PL_rs)) { | |
5697 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
5698 | Perl_croak(aTHX_ "Wide character in $/"); | |
5699 | } | |
5700 | } | |
5701 | rsptr = SvPV(PL_rs, rslen); | |
5702 | } | |
5703 | } | |
5704 | ||
c07a80fd | 5705 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
5706 | ||
8bfdd7d9 | 5707 | if (rspara) { /* have to do this both before and after */ |
79072805 | 5708 | do { /* to make sure file boundaries work right */ |
760ac839 | 5709 | if (PerlIO_eof(fp)) |
a0d0e21e | 5710 | return 0; |
760ac839 | 5711 | i = PerlIO_getc(fp); |
79072805 | 5712 | if (i != '\n') { |
a0d0e21e LW |
5713 | if (i == -1) |
5714 | return 0; | |
760ac839 | 5715 | PerlIO_ungetc(fp,i); |
79072805 LW |
5716 | break; |
5717 | } | |
5718 | } while (i != EOF); | |
5719 | } | |
c07a80fd | 5720 | |
760ac839 LW |
5721 | /* See if we know enough about I/O mechanism to cheat it ! */ |
5722 | ||
5723 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 5724 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
5725 | enough here - and may even be a macro allowing compile |
5726 | time optimization. | |
5727 | */ | |
5728 | ||
5729 | if (PerlIO_fast_gets(fp)) { | |
5730 | ||
5731 | /* | |
5732 | * We're going to steal some values from the stdio struct | |
5733 | * and put EVERYTHING in the innermost loop into registers. | |
5734 | */ | |
5735 | register STDCHAR *ptr; | |
5736 | STRLEN bpx; | |
5737 | I32 shortbuffered; | |
5738 | ||
16660edb | 5739 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
5740 | /* An ungetc()d char is handled separately from the regular | |
5741 | * buffer, so we getc() it back out and stuff it in the buffer. | |
5742 | */ | |
5743 | i = PerlIO_getc(fp); | |
5744 | if (i == EOF) return 0; | |
5745 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
5746 | (*fp)->_cnt++; | |
5747 | #endif | |
c07a80fd | 5748 | |
c2960299 | 5749 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 5750 | |
a20bf0c3 | 5751 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
a0d0e21e | 5752 | (void)SvPOK_only(sv); /* validate pointer */ |
eb160463 GS |
5753 | if ((I32)(SvLEN(sv) - append) <= cnt + 1) { /* make sure we have the room */ |
5754 | if (cnt > 80 && (I32)SvLEN(sv) > append) { | |
79072805 LW |
5755 | shortbuffered = cnt - SvLEN(sv) + append + 1; |
5756 | cnt -= shortbuffered; | |
5757 | } | |
5758 | else { | |
5759 | shortbuffered = 0; | |
bbce6d69 | 5760 | /* remember that cnt can be negative */ |
eb160463 | 5761 | SvGROW(sv, (STRLEN)(append + (cnt <= 0 ? 2 : (cnt + 1)))); |
79072805 LW |
5762 | } |
5763 | } | |
5764 | else | |
5765 | shortbuffered = 0; | |
c07a80fd | 5766 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 5767 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 5768 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5769 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 5770 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
ba7abf9d | 5771 | "Screamer: entering: PerlIO * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5772 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5773 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
5774 | for (;;) { |
5775 | screamer: | |
93a17b20 | 5776 | if (cnt > 0) { |
c07a80fd | 5777 | if (rslen) { |
760ac839 LW |
5778 | while (cnt > 0) { /* this | eat */ |
5779 | cnt--; | |
c07a80fd | 5780 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
5781 | goto thats_all_folks; /* screams | sed :-) */ | |
5782 | } | |
5783 | } | |
5784 | else { | |
1c846c1f NIS |
5785 | Copy(ptr, bp, cnt, char); /* this | eat */ |
5786 | bp += cnt; /* screams | dust */ | |
c07a80fd | 5787 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 5788 | cnt = 0; |
93a17b20 | 5789 | } |
79072805 LW |
5790 | } |
5791 | ||
748a9306 | 5792 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
5793 | cnt = shortbuffered; |
5794 | shortbuffered = 0; | |
c07a80fd | 5795 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5796 | SvCUR_set(sv, bpx); |
5797 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 5798 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
5799 | continue; |
5800 | } | |
5801 | ||
16660edb | 5802 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
5803 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
5804 | PTR2UV(ptr),(long)cnt)); | |
cc00df79 | 5805 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* deregisterize cnt and ptr */ |
ba7abf9d | 5806 | #if 0 |
16660edb | 5807 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5808 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5809 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5810 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 5811 | #endif |
1c846c1f | 5812 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 5813 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
5814 | another abstraction. */ | |
760ac839 | 5815 | i = PerlIO_getc(fp); /* get more characters */ |
ba7abf9d | 5816 | #if 0 |
16660edb | 5817 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5818 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5819 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5820 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 5821 | #endif |
a20bf0c3 JH |
5822 | cnt = PerlIO_get_cnt(fp); |
5823 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 5824 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5825 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 5826 | |
748a9306 LW |
5827 | if (i == EOF) /* all done for ever? */ |
5828 | goto thats_really_all_folks; | |
5829 | ||
c07a80fd | 5830 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5831 | SvCUR_set(sv, bpx); |
5832 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 5833 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
5834 | ||
eb160463 | 5835 | *bp++ = (STDCHAR)i; /* store character from PerlIO_getc */ |
79072805 | 5836 | |
c07a80fd | 5837 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 5838 | goto thats_all_folks; |
79072805 LW |
5839 | } |
5840 | ||
5841 | thats_all_folks: | |
eb160463 | 5842 | if ((rslen > 1 && (STRLEN)(bp - (STDCHAR*)SvPVX(sv)) < rslen) || |
36477c24 | 5843 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 5844 | goto screamer; /* go back to the fray */ |
79072805 LW |
5845 | thats_really_all_folks: |
5846 | if (shortbuffered) | |
5847 | cnt += shortbuffered; | |
16660edb | 5848 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5849 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
cc00df79 | 5850 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 5851 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5852 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5853 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5854 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 5855 | *bp = '\0'; |
760ac839 | 5856 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 5857 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 5858 | "Screamer: done, len=%ld, string=|%.*s|\n", |
5859 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
5860 | } |
5861 | else | |
79072805 | 5862 | { |
4d2c4e07 | 5863 | #ifndef EPOC |
760ac839 | 5864 | /*The big, slow, and stupid way */ |
c07a80fd | 5865 | STDCHAR buf[8192]; |
4d2c4e07 OF |
5866 | #else |
5867 | /* Need to work around EPOC SDK features */ | |
5868 | /* On WINS: MS VC5 generates calls to _chkstk, */ | |
5869 | /* if a `large' stack frame is allocated */ | |
5870 | /* gcc on MARM does not generate calls like these */ | |
5871 | STDCHAR buf[1024]; | |
5872 | #endif | |
79072805 | 5873 | |
760ac839 | 5874 | screamer2: |
c07a80fd | 5875 | if (rslen) { |
760ac839 LW |
5876 | register STDCHAR *bpe = buf + sizeof(buf); |
5877 | bp = buf; | |
eb160463 | 5878 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = (STDCHAR)i) != rslast && bp < bpe) |
760ac839 LW |
5879 | ; /* keep reading */ |
5880 | cnt = bp - buf; | |
c07a80fd | 5881 | } |
5882 | else { | |
760ac839 | 5883 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 5884 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
5885 | * both args of ?: operator, causing EOF to change into 255 | |
5886 | */ | |
aca0daca | 5887 | if (cnt > 0) { i = (U8)buf[cnt - 1]; } else { i = EOF; } |
c07a80fd | 5888 | } |
79072805 | 5889 | |
aca0daca NIS |
5890 | if (cnt > 0) { |
5891 | if (append) | |
5892 | sv_catpvn(sv, (char *) buf, cnt); | |
5893 | else | |
5894 | sv_setpvn(sv, (char *) buf, cnt); | |
5895 | } | |
c07a80fd | 5896 | |
5897 | if (i != EOF && /* joy */ | |
5898 | (!rslen || | |
5899 | SvCUR(sv) < rslen || | |
36477c24 | 5900 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
5901 | { |
5902 | append = -1; | |
63e4d877 CS |
5903 | /* |
5904 | * If we're reading from a TTY and we get a short read, | |
5905 | * indicating that the user hit his EOF character, we need | |
5906 | * to notice it now, because if we try to read from the TTY | |
5907 | * again, the EOF condition will disappear. | |
5908 | * | |
5909 | * The comparison of cnt to sizeof(buf) is an optimization | |
5910 | * that prevents unnecessary calls to feof(). | |
5911 | * | |
5912 | * - jik 9/25/96 | |
5913 | */ | |
5914 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
5915 | goto screamer2; | |
79072805 LW |
5916 | } |
5917 | } | |
5918 | ||
8bfdd7d9 | 5919 | if (rspara) { /* have to do this both before and after */ |
c07a80fd | 5920 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 5921 | i = PerlIO_getc(fp); |
79072805 | 5922 | if (i != '\n') { |
760ac839 | 5923 | PerlIO_ungetc(fp,i); |
79072805 LW |
5924 | break; |
5925 | } | |
5926 | } | |
5927 | } | |
c07a80fd | 5928 | |
7d59b7e4 NIS |
5929 | if (PerlIO_isutf8(fp)) |
5930 | SvUTF8_on(sv); | |
5931 | else | |
5932 | SvUTF8_off(sv); | |
5933 | ||
c07a80fd | 5934 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
5935 | } |
5936 | ||
954c1994 GS |
5937 | /* |
5938 | =for apidoc sv_inc | |
5939 | ||
645c22ef DM |
5940 | Auto-increment of the value in the SV, doing string to numeric conversion |
5941 | if necessary. Handles 'get' magic. | |
954c1994 GS |
5942 | |
5943 | =cut | |
5944 | */ | |
5945 | ||
79072805 | 5946 | void |
864dbfa3 | 5947 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
5948 | { |
5949 | register char *d; | |
463ee0b2 | 5950 | int flags; |
79072805 LW |
5951 | |
5952 | if (!sv) | |
5953 | return; | |
b23a5f78 GB |
5954 | if (SvGMAGICAL(sv)) |
5955 | mg_get(sv); | |
ed6116ce | 5956 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
5957 | if (SvREADONLY(sv) && SvFAKE(sv)) |
5958 | sv_force_normal(sv); | |
0f15f207 | 5959 | if (SvREADONLY(sv)) { |
3280af22 | 5960 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 5961 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 5962 | } |
a0d0e21e | 5963 | if (SvROK(sv)) { |
b5be31e9 | 5964 | IV i; |
9e7bc3e8 JD |
5965 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
5966 | return; | |
56431972 | 5967 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
5968 | sv_unref(sv); |
5969 | sv_setiv(sv, i); | |
a0d0e21e | 5970 | } |
ed6116ce | 5971 | } |
8990e307 | 5972 | flags = SvFLAGS(sv); |
28e5dec8 JH |
5973 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
5974 | /* It's (privately or publicly) a float, but not tested as an | |
5975 | integer, so test it to see. */ | |
d460ef45 | 5976 | (void) SvIV(sv); |
28e5dec8 JH |
5977 | flags = SvFLAGS(sv); |
5978 | } | |
5979 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
5980 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 5981 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 5982 | oops_its_int: |
59d8ce62 | 5983 | #endif |
25da4f38 IZ |
5984 | if (SvIsUV(sv)) { |
5985 | if (SvUVX(sv) == UV_MAX) | |
a1e868e7 | 5986 | sv_setnv(sv, UV_MAX_P1); |
25da4f38 IZ |
5987 | else |
5988 | (void)SvIOK_only_UV(sv); | |
5989 | ++SvUVX(sv); | |
5990 | } else { | |
5991 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 5992 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
5993 | else { |
5994 | (void)SvIOK_only(sv); | |
5995 | ++SvIVX(sv); | |
1c846c1f | 5996 | } |
55497cff | 5997 | } |
79072805 LW |
5998 | return; |
5999 | } | |
28e5dec8 JH |
6000 | if (flags & SVp_NOK) { |
6001 | (void)SvNOK_only(sv); | |
6002 | SvNVX(sv) += 1.0; | |
6003 | return; | |
6004 | } | |
6005 | ||
8990e307 | 6006 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
28e5dec8 JH |
6007 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
6008 | sv_upgrade(sv, SVt_IV); | |
6009 | (void)SvIOK_only(sv); | |
6010 | SvIVX(sv) = 1; | |
79072805 LW |
6011 | return; |
6012 | } | |
463ee0b2 | 6013 | d = SvPVX(sv); |
79072805 LW |
6014 | while (isALPHA(*d)) d++; |
6015 | while (isDIGIT(*d)) d++; | |
6016 | if (*d) { | |
28e5dec8 | 6017 | #ifdef PERL_PRESERVE_IVUV |
d1be9408 | 6018 | /* Got to punt this as an integer if needs be, but we don't issue |
28e5dec8 JH |
6019 | warnings. Probably ought to make the sv_iv_please() that does |
6020 | the conversion if possible, and silently. */ | |
c2988b20 | 6021 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6022 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6023 | /* Need to try really hard to see if it's an integer. | |
6024 | 9.22337203685478e+18 is an integer. | |
6025 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6026 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
6027 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
6028 | or we go insane. */ | |
d460ef45 | 6029 | |
28e5dec8 JH |
6030 | (void) sv_2iv(sv); |
6031 | if (SvIOK(sv)) | |
6032 | goto oops_its_int; | |
6033 | ||
6034 | /* sv_2iv *should* have made this an NV */ | |
6035 | if (flags & SVp_NOK) { | |
6036 | (void)SvNOK_only(sv); | |
6037 | SvNVX(sv) += 1.0; | |
6038 | return; | |
6039 | } | |
6040 | /* I don't think we can get here. Maybe I should assert this | |
6041 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6042 | Fall through. */ | |
6043 | #if defined(USE_LONG_DOUBLE) | |
6044 | 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", | |
6045 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6046 | #else | |
1779d84d | 6047 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_inc punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
28e5dec8 JH |
6048 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
6049 | #endif | |
6050 | } | |
6051 | #endif /* PERL_PRESERVE_IVUV */ | |
6052 | sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); | |
79072805 LW |
6053 | return; |
6054 | } | |
6055 | d--; | |
463ee0b2 | 6056 | while (d >= SvPVX(sv)) { |
79072805 LW |
6057 | if (isDIGIT(*d)) { |
6058 | if (++*d <= '9') | |
6059 | return; | |
6060 | *(d--) = '0'; | |
6061 | } | |
6062 | else { | |
9d116dd7 JH |
6063 | #ifdef EBCDIC |
6064 | /* MKS: The original code here died if letters weren't consecutive. | |
6065 | * at least it didn't have to worry about non-C locales. The | |
6066 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 6067 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
6068 | * [A-Za-z] are accepted by isALPHA in the C locale. |
6069 | */ | |
6070 | if (*d != 'z' && *d != 'Z') { | |
6071 | do { ++*d; } while (!isALPHA(*d)); | |
6072 | return; | |
6073 | } | |
6074 | *(d--) -= 'z' - 'a'; | |
6075 | #else | |
79072805 LW |
6076 | ++*d; |
6077 | if (isALPHA(*d)) | |
6078 | return; | |
6079 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 6080 | #endif |
79072805 LW |
6081 | } |
6082 | } | |
6083 | /* oh,oh, the number grew */ | |
6084 | SvGROW(sv, SvCUR(sv) + 2); | |
6085 | SvCUR(sv)++; | |
463ee0b2 | 6086 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
6087 | *d = d[-1]; |
6088 | if (isDIGIT(d[1])) | |
6089 | *d = '1'; | |
6090 | else | |
6091 | *d = d[1]; | |
6092 | } | |
6093 | ||
954c1994 GS |
6094 | /* |
6095 | =for apidoc sv_dec | |
6096 | ||
645c22ef DM |
6097 | Auto-decrement of the value in the SV, doing string to numeric conversion |
6098 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6099 | |
6100 | =cut | |
6101 | */ | |
6102 | ||
79072805 | 6103 | void |
864dbfa3 | 6104 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 6105 | { |
463ee0b2 LW |
6106 | int flags; |
6107 | ||
79072805 LW |
6108 | if (!sv) |
6109 | return; | |
b23a5f78 GB |
6110 | if (SvGMAGICAL(sv)) |
6111 | mg_get(sv); | |
ed6116ce | 6112 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
6113 | if (SvREADONLY(sv) && SvFAKE(sv)) |
6114 | sv_force_normal(sv); | |
0f15f207 | 6115 | if (SvREADONLY(sv)) { |
3280af22 | 6116 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 6117 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6118 | } |
a0d0e21e | 6119 | if (SvROK(sv)) { |
b5be31e9 | 6120 | IV i; |
9e7bc3e8 JD |
6121 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
6122 | return; | |
56431972 | 6123 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6124 | sv_unref(sv); |
6125 | sv_setiv(sv, i); | |
a0d0e21e | 6126 | } |
ed6116ce | 6127 | } |
28e5dec8 JH |
6128 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
6129 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 6130 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6131 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
6132 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6133 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6134 | oops_its_int: |
59d8ce62 | 6135 | #endif |
25da4f38 IZ |
6136 | if (SvIsUV(sv)) { |
6137 | if (SvUVX(sv) == 0) { | |
6138 | (void)SvIOK_only(sv); | |
6139 | SvIVX(sv) = -1; | |
6140 | } | |
6141 | else { | |
6142 | (void)SvIOK_only_UV(sv); | |
6143 | --SvUVX(sv); | |
1c846c1f | 6144 | } |
25da4f38 IZ |
6145 | } else { |
6146 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 6147 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
6148 | else { |
6149 | (void)SvIOK_only(sv); | |
6150 | --SvIVX(sv); | |
1c846c1f | 6151 | } |
55497cff | 6152 | } |
6153 | return; | |
6154 | } | |
28e5dec8 JH |
6155 | if (flags & SVp_NOK) { |
6156 | SvNVX(sv) -= 1.0; | |
6157 | (void)SvNOK_only(sv); | |
6158 | return; | |
6159 | } | |
8990e307 | 6160 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
6161 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
6162 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 6163 | SvNVX(sv) = -1.0; |
a0d0e21e | 6164 | (void)SvNOK_only(sv); |
79072805 LW |
6165 | return; |
6166 | } | |
28e5dec8 JH |
6167 | #ifdef PERL_PRESERVE_IVUV |
6168 | { | |
c2988b20 | 6169 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6170 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6171 | /* Need to try really hard to see if it's an integer. | |
6172 | 9.22337203685478e+18 is an integer. | |
6173 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6174 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
6175 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
6176 | or we go insane. */ | |
d460ef45 | 6177 | |
28e5dec8 JH |
6178 | (void) sv_2iv(sv); |
6179 | if (SvIOK(sv)) | |
6180 | goto oops_its_int; | |
6181 | ||
6182 | /* sv_2iv *should* have made this an NV */ | |
6183 | if (flags & SVp_NOK) { | |
6184 | (void)SvNOK_only(sv); | |
6185 | SvNVX(sv) -= 1.0; | |
6186 | return; | |
6187 | } | |
6188 | /* I don't think we can get here. Maybe I should assert this | |
6189 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6190 | Fall through. */ | |
6191 | #if defined(USE_LONG_DOUBLE) | |
6192 | 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", | |
6193 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6194 | #else | |
1779d84d | 6195 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_dec punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
28e5dec8 JH |
6196 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
6197 | #endif | |
6198 | } | |
6199 | } | |
6200 | #endif /* PERL_PRESERVE_IVUV */ | |
097ee67d | 6201 | sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
6202 | } |
6203 | ||
954c1994 GS |
6204 | /* |
6205 | =for apidoc sv_mortalcopy | |
6206 | ||
645c22ef | 6207 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
d4236ebc DM |
6208 | The new SV is marked as mortal. It will be destroyed "soon", either by an |
6209 | explicit call to FREETMPS, or by an implicit call at places such as | |
6210 | statement boundaries. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
6211 | |
6212 | =cut | |
6213 | */ | |
6214 | ||
79072805 LW |
6215 | /* Make a string that will exist for the duration of the expression |
6216 | * evaluation. Actually, it may have to last longer than that, but | |
6217 | * hopefully we won't free it until it has been assigned to a | |
6218 | * permanent location. */ | |
6219 | ||
6220 | SV * | |
864dbfa3 | 6221 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 6222 | { |
463ee0b2 | 6223 | register SV *sv; |
b881518d | 6224 | |
4561caa4 | 6225 | new_SV(sv); |
79072805 | 6226 | sv_setsv(sv,oldstr); |
677b06e3 GS |
6227 | EXTEND_MORTAL(1); |
6228 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
6229 | SvTEMP_on(sv); |
6230 | return sv; | |
6231 | } | |
6232 | ||
954c1994 GS |
6233 | /* |
6234 | =for apidoc sv_newmortal | |
6235 | ||
645c22ef | 6236 | Creates a new null SV which is mortal. The reference count of the SV is |
d4236ebc DM |
6237 | set to 1. It will be destroyed "soon", either by an explicit call to |
6238 | FREETMPS, or by an implicit call at places such as statement boundaries. | |
6239 | See also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
6240 | |
6241 | =cut | |
6242 | */ | |
6243 | ||
8990e307 | 6244 | SV * |
864dbfa3 | 6245 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
6246 | { |
6247 | register SV *sv; | |
6248 | ||
4561caa4 | 6249 | new_SV(sv); |
8990e307 | 6250 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
6251 | EXTEND_MORTAL(1); |
6252 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
6253 | return sv; |
6254 | } | |
6255 | ||
954c1994 GS |
6256 | /* |
6257 | =for apidoc sv_2mortal | |
6258 | ||
d4236ebc DM |
6259 | Marks an existing SV as mortal. The SV will be destroyed "soon", either |
6260 | by an explicit call to FREETMPS, or by an implicit call at places such as | |
6261 | statement boundaries. See also C<sv_newmortal> and C<sv_mortalcopy>. | |
954c1994 GS |
6262 | |
6263 | =cut | |
6264 | */ | |
6265 | ||
79072805 | 6266 | SV * |
864dbfa3 | 6267 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 LW |
6268 | { |
6269 | if (!sv) | |
6270 | return sv; | |
d689ffdd | 6271 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 6272 | return sv; |
677b06e3 GS |
6273 | EXTEND_MORTAL(1); |
6274 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 6275 | SvTEMP_on(sv); |
79072805 LW |
6276 | return sv; |
6277 | } | |
6278 | ||
954c1994 GS |
6279 | /* |
6280 | =for apidoc newSVpv | |
6281 | ||
6282 | Creates a new SV and copies a string into it. The reference count for the | |
6283 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
6284 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
6285 | ||
6286 | =cut | |
6287 | */ | |
6288 | ||
79072805 | 6289 | SV * |
864dbfa3 | 6290 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 6291 | { |
463ee0b2 | 6292 | register SV *sv; |
79072805 | 6293 | |
4561caa4 | 6294 | new_SV(sv); |
79072805 LW |
6295 | if (!len) |
6296 | len = strlen(s); | |
6297 | sv_setpvn(sv,s,len); | |
6298 | return sv; | |
6299 | } | |
6300 | ||
954c1994 GS |
6301 | /* |
6302 | =for apidoc newSVpvn | |
6303 | ||
6304 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 6305 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 GS |
6306 | string. You are responsible for ensuring that the source string is at least |
6307 | C<len> bytes long. | |
6308 | ||
6309 | =cut | |
6310 | */ | |
6311 | ||
9da1e3b5 | 6312 | SV * |
864dbfa3 | 6313 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
6314 | { |
6315 | register SV *sv; | |
6316 | ||
6317 | new_SV(sv); | |
9da1e3b5 MUN |
6318 | sv_setpvn(sv,s,len); |
6319 | return sv; | |
6320 | } | |
6321 | ||
1c846c1f NIS |
6322 | /* |
6323 | =for apidoc newSVpvn_share | |
6324 | ||
645c22ef DM |
6325 | Creates a new SV with its SvPVX pointing to a shared string in the string |
6326 | table. If the string does not already exist in the table, it is created | |
6327 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
6328 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
6329 | otherwise the hash is computed. The idea here is that as the string table | |
6330 | is used for shared hash keys these strings will have SvPVX == HeKEY and | |
6331 | hash lookup will avoid string compare. | |
1c846c1f NIS |
6332 | |
6333 | =cut | |
6334 | */ | |
6335 | ||
6336 | SV * | |
c3654f1a | 6337 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
6338 | { |
6339 | register SV *sv; | |
c3654f1a IH |
6340 | bool is_utf8 = FALSE; |
6341 | if (len < 0) { | |
77caf834 | 6342 | STRLEN tmplen = -len; |
c3654f1a | 6343 | is_utf8 = TRUE; |
75a54232 JH |
6344 | /* See the note in hv.c:hv_fetch() --jhi */ |
6345 | src = (char*)bytes_from_utf8((U8*)src, &tmplen, &is_utf8); | |
6346 | len = tmplen; | |
6347 | } | |
1c846c1f | 6348 | if (!hash) |
5afd6d42 | 6349 | PERL_HASH(hash, src, len); |
1c846c1f NIS |
6350 | new_SV(sv); |
6351 | sv_upgrade(sv, SVt_PVIV); | |
c3654f1a | 6352 | SvPVX(sv) = sharepvn(src, is_utf8?-len:len, hash); |
1c846c1f NIS |
6353 | SvCUR(sv) = len; |
6354 | SvUVX(sv) = hash; | |
6355 | SvLEN(sv) = 0; | |
6356 | SvREADONLY_on(sv); | |
6357 | SvFAKE_on(sv); | |
6358 | SvPOK_on(sv); | |
c3654f1a IH |
6359 | if (is_utf8) |
6360 | SvUTF8_on(sv); | |
1c846c1f NIS |
6361 | return sv; |
6362 | } | |
6363 | ||
645c22ef | 6364 | |
cea2e8a9 | 6365 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
6366 | |
6367 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
6368 | * version of the main function, (which may itself be aliased to us). | |
6369 | * Don't access this version directly. | |
6370 | */ | |
6371 | ||
46fc3d4c | 6372 | SV * |
cea2e8a9 | 6373 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 6374 | { |
cea2e8a9 | 6375 | dTHX; |
46fc3d4c | 6376 | register SV *sv; |
6377 | va_list args; | |
46fc3d4c | 6378 | va_start(args, pat); |
c5be433b | 6379 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 6380 | va_end(args); |
6381 | return sv; | |
6382 | } | |
cea2e8a9 | 6383 | #endif |
46fc3d4c | 6384 | |
954c1994 GS |
6385 | /* |
6386 | =for apidoc newSVpvf | |
6387 | ||
645c22ef | 6388 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
6389 | C<sprintf>. |
6390 | ||
6391 | =cut | |
6392 | */ | |
6393 | ||
cea2e8a9 GS |
6394 | SV * |
6395 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
6396 | { | |
6397 | register SV *sv; | |
6398 | va_list args; | |
cea2e8a9 | 6399 | va_start(args, pat); |
c5be433b | 6400 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
6401 | va_end(args); |
6402 | return sv; | |
6403 | } | |
46fc3d4c | 6404 | |
645c22ef DM |
6405 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
6406 | ||
79072805 | 6407 | SV * |
c5be433b GS |
6408 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
6409 | { | |
6410 | register SV *sv; | |
6411 | new_SV(sv); | |
6412 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
6413 | return sv; | |
6414 | } | |
6415 | ||
954c1994 GS |
6416 | /* |
6417 | =for apidoc newSVnv | |
6418 | ||
6419 | Creates a new SV and copies a floating point value into it. | |
6420 | The reference count for the SV is set to 1. | |
6421 | ||
6422 | =cut | |
6423 | */ | |
6424 | ||
c5be433b | 6425 | SV * |
65202027 | 6426 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 6427 | { |
463ee0b2 | 6428 | register SV *sv; |
79072805 | 6429 | |
4561caa4 | 6430 | new_SV(sv); |
79072805 LW |
6431 | sv_setnv(sv,n); |
6432 | return sv; | |
6433 | } | |
6434 | ||
954c1994 GS |
6435 | /* |
6436 | =for apidoc newSViv | |
6437 | ||
6438 | Creates a new SV and copies an integer into it. The reference count for the | |
6439 | SV is set to 1. | |
6440 | ||
6441 | =cut | |
6442 | */ | |
6443 | ||
79072805 | 6444 | SV * |
864dbfa3 | 6445 | Perl_newSViv(pTHX_ IV i) |
79072805 | 6446 | { |
463ee0b2 | 6447 | register SV *sv; |
79072805 | 6448 | |
4561caa4 | 6449 | new_SV(sv); |
79072805 LW |
6450 | sv_setiv(sv,i); |
6451 | return sv; | |
6452 | } | |
6453 | ||
954c1994 | 6454 | /* |
1a3327fb JH |
6455 | =for apidoc newSVuv |
6456 | ||
6457 | Creates a new SV and copies an unsigned integer into it. | |
6458 | The reference count for the SV is set to 1. | |
6459 | ||
6460 | =cut | |
6461 | */ | |
6462 | ||
6463 | SV * | |
6464 | Perl_newSVuv(pTHX_ UV u) | |
6465 | { | |
6466 | register SV *sv; | |
6467 | ||
6468 | new_SV(sv); | |
6469 | sv_setuv(sv,u); | |
6470 | return sv; | |
6471 | } | |
6472 | ||
6473 | /* | |
954c1994 GS |
6474 | =for apidoc newRV_noinc |
6475 | ||
6476 | Creates an RV wrapper for an SV. The reference count for the original | |
6477 | SV is B<not> incremented. | |
6478 | ||
6479 | =cut | |
6480 | */ | |
6481 | ||
2304df62 | 6482 | SV * |
864dbfa3 | 6483 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
6484 | { |
6485 | register SV *sv; | |
6486 | ||
4561caa4 | 6487 | new_SV(sv); |
2304df62 | 6488 | sv_upgrade(sv, SVt_RV); |
76e3520e | 6489 | SvTEMP_off(tmpRef); |
d689ffdd | 6490 | SvRV(sv) = tmpRef; |
2304df62 | 6491 | SvROK_on(sv); |
2304df62 AD |
6492 | return sv; |
6493 | } | |
6494 | ||
ff276b08 | 6495 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
6496 | * newRV_inc is in fact #defined to newRV in sv.h |
6497 | */ | |
6498 | ||
5f05dabc | 6499 | SV * |
864dbfa3 | 6500 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 6501 | { |
5f6447b6 | 6502 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 6503 | } |
5f05dabc | 6504 | |
954c1994 GS |
6505 | /* |
6506 | =for apidoc newSVsv | |
6507 | ||
6508 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 6509 | (Uses C<sv_setsv>). |
954c1994 GS |
6510 | |
6511 | =cut | |
6512 | */ | |
6513 | ||
79072805 | 6514 | SV * |
864dbfa3 | 6515 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 6516 | { |
463ee0b2 | 6517 | register SV *sv; |
79072805 LW |
6518 | |
6519 | if (!old) | |
6520 | return Nullsv; | |
8990e307 | 6521 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 | 6522 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 6523 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "semi-panic: attempt to dup freed string"); |
79072805 LW |
6524 | return Nullsv; |
6525 | } | |
4561caa4 | 6526 | new_SV(sv); |
ff68c719 | 6527 | if (SvTEMP(old)) { |
6528 | SvTEMP_off(old); | |
463ee0b2 | 6529 | sv_setsv(sv,old); |
ff68c719 | 6530 | SvTEMP_on(old); |
79072805 LW |
6531 | } |
6532 | else | |
463ee0b2 LW |
6533 | sv_setsv(sv,old); |
6534 | return sv; | |
79072805 LW |
6535 | } |
6536 | ||
645c22ef DM |
6537 | /* |
6538 | =for apidoc sv_reset | |
6539 | ||
6540 | Underlying implementation for the C<reset> Perl function. | |
6541 | Note that the perl-level function is vaguely deprecated. | |
6542 | ||
6543 | =cut | |
6544 | */ | |
6545 | ||
79072805 | 6546 | void |
864dbfa3 | 6547 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 LW |
6548 | { |
6549 | register HE *entry; | |
6550 | register GV *gv; | |
6551 | register SV *sv; | |
6552 | register I32 i; | |
6553 | register PMOP *pm; | |
6554 | register I32 max; | |
4802d5d7 | 6555 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 6556 | |
49d8d3a1 MB |
6557 | if (!stash) |
6558 | return; | |
6559 | ||
79072805 LW |
6560 | if (!*s) { /* reset ?? searches */ |
6561 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 6562 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
6563 | } |
6564 | return; | |
6565 | } | |
6566 | ||
6567 | /* reset variables */ | |
6568 | ||
6569 | if (!HvARRAY(stash)) | |
6570 | return; | |
463ee0b2 LW |
6571 | |
6572 | Zero(todo, 256, char); | |
79072805 | 6573 | while (*s) { |
4802d5d7 | 6574 | i = (unsigned char)*s; |
79072805 LW |
6575 | if (s[1] == '-') { |
6576 | s += 2; | |
6577 | } | |
4802d5d7 | 6578 | max = (unsigned char)*s++; |
79072805 | 6579 | for ( ; i <= max; i++) { |
463ee0b2 LW |
6580 | todo[i] = 1; |
6581 | } | |
a0d0e21e | 6582 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 6583 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
6584 | entry; |
6585 | entry = HeNEXT(entry)) | |
6586 | { | |
1edc1566 | 6587 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 6588 | continue; |
1edc1566 | 6589 | gv = (GV*)HeVAL(entry); |
79072805 | 6590 | sv = GvSV(gv); |
9e35f4b3 GS |
6591 | if (SvTHINKFIRST(sv)) { |
6592 | if (!SvREADONLY(sv) && SvROK(sv)) | |
6593 | sv_unref(sv); | |
6594 | continue; | |
6595 | } | |
a0d0e21e | 6596 | (void)SvOK_off(sv); |
79072805 LW |
6597 | if (SvTYPE(sv) >= SVt_PV) { |
6598 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
6599 | if (SvPVX(sv) != Nullch) |
6600 | *SvPVX(sv) = '\0'; | |
44a8e56a | 6601 | SvTAINT(sv); |
79072805 LW |
6602 | } |
6603 | if (GvAV(gv)) { | |
6604 | av_clear(GvAV(gv)); | |
6605 | } | |
44a8e56a | 6606 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 6607 | hv_clear(GvHV(gv)); |
fa6a1c44 | 6608 | #ifdef USE_ENVIRON_ARRAY |
4efc5df6 GS |
6609 | if (gv == PL_envgv |
6610 | # ifdef USE_ITHREADS | |
6611 | && PL_curinterp == aTHX | |
6612 | # endif | |
6613 | ) | |
6614 | { | |
79072805 | 6615 | environ[0] = Nullch; |
4efc5df6 | 6616 | } |
a0d0e21e | 6617 | #endif |
79072805 LW |
6618 | } |
6619 | } | |
6620 | } | |
6621 | } | |
6622 | } | |
6623 | ||
645c22ef DM |
6624 | /* |
6625 | =for apidoc sv_2io | |
6626 | ||
6627 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
6628 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
6629 | named after the PV if we're a string. | |
6630 | ||
6631 | =cut | |
6632 | */ | |
6633 | ||
46fc3d4c | 6634 | IO* |
864dbfa3 | 6635 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 6636 | { |
6637 | IO* io; | |
6638 | GV* gv; | |
2d8e6c8d | 6639 | STRLEN n_a; |
46fc3d4c | 6640 | |
6641 | switch (SvTYPE(sv)) { | |
6642 | case SVt_PVIO: | |
6643 | io = (IO*)sv; | |
6644 | break; | |
6645 | case SVt_PVGV: | |
6646 | gv = (GV*)sv; | |
6647 | io = GvIO(gv); | |
6648 | if (!io) | |
cea2e8a9 | 6649 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 6650 | break; |
6651 | default: | |
6652 | if (!SvOK(sv)) | |
cea2e8a9 | 6653 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 6654 | if (SvROK(sv)) |
6655 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 6656 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 6657 | if (gv) |
6658 | io = GvIO(gv); | |
6659 | else | |
6660 | io = 0; | |
6661 | if (!io) | |
cea2e8a9 | 6662 | Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a)); |
46fc3d4c | 6663 | break; |
6664 | } | |
6665 | return io; | |
6666 | } | |
6667 | ||
645c22ef DM |
6668 | /* |
6669 | =for apidoc sv_2cv | |
6670 | ||
6671 | Using various gambits, try to get a CV from an SV; in addition, try if | |
6672 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
6673 | ||
6674 | =cut | |
6675 | */ | |
6676 | ||
79072805 | 6677 | CV * |
864dbfa3 | 6678 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 | 6679 | { |
c04a4dfe JH |
6680 | GV *gv = Nullgv; |
6681 | CV *cv = Nullcv; | |
2d8e6c8d | 6682 | STRLEN n_a; |
79072805 LW |
6683 | |
6684 | if (!sv) | |
93a17b20 | 6685 | return *gvp = Nullgv, Nullcv; |
79072805 | 6686 | switch (SvTYPE(sv)) { |
79072805 LW |
6687 | case SVt_PVCV: |
6688 | *st = CvSTASH(sv); | |
6689 | *gvp = Nullgv; | |
6690 | return (CV*)sv; | |
6691 | case SVt_PVHV: | |
6692 | case SVt_PVAV: | |
6693 | *gvp = Nullgv; | |
6694 | return Nullcv; | |
8990e307 LW |
6695 | case SVt_PVGV: |
6696 | gv = (GV*)sv; | |
a0d0e21e | 6697 | *gvp = gv; |
8990e307 LW |
6698 | *st = GvESTASH(gv); |
6699 | goto fix_gv; | |
6700 | ||
79072805 | 6701 | default: |
a0d0e21e LW |
6702 | if (SvGMAGICAL(sv)) |
6703 | mg_get(sv); | |
6704 | if (SvROK(sv)) { | |
f5284f61 IZ |
6705 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
6706 | tryAMAGICunDEREF(to_cv); | |
6707 | ||
62f274bf GS |
6708 | sv = SvRV(sv); |
6709 | if (SvTYPE(sv) == SVt_PVCV) { | |
6710 | cv = (CV*)sv; | |
6711 | *gvp = Nullgv; | |
6712 | *st = CvSTASH(cv); | |
6713 | return cv; | |
6714 | } | |
6715 | else if(isGV(sv)) | |
6716 | gv = (GV*)sv; | |
6717 | else | |
cea2e8a9 | 6718 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 6719 | } |
62f274bf | 6720 | else if (isGV(sv)) |
79072805 LW |
6721 | gv = (GV*)sv; |
6722 | else | |
2d8e6c8d | 6723 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
6724 | *gvp = gv; |
6725 | if (!gv) | |
6726 | return Nullcv; | |
6727 | *st = GvESTASH(gv); | |
8990e307 | 6728 | fix_gv: |
8ebc5c01 | 6729 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 6730 | SV *tmpsv; |
748a9306 | 6731 | ENTER; |
4633a7c4 | 6732 | tmpsv = NEWSV(704,0); |
16660edb | 6733 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
6734 | /* XXX this is probably not what they think they're getting. |
6735 | * It has the same effect as "sub name;", i.e. just a forward | |
6736 | * declaration! */ | |
774d564b | 6737 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
6738 | newSVOP(OP_CONST, 0, tmpsv), |
6739 | Nullop, | |
8990e307 | 6740 | Nullop); |
748a9306 | 6741 | LEAVE; |
8ebc5c01 | 6742 | if (!GvCVu(gv)) |
cea2e8a9 | 6743 | Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a)); |
8990e307 | 6744 | } |
8ebc5c01 | 6745 | return GvCVu(gv); |
79072805 LW |
6746 | } |
6747 | } | |
6748 | ||
c461cf8f JH |
6749 | /* |
6750 | =for apidoc sv_true | |
6751 | ||
6752 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
6753 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
6754 | instead use an in-line version. | |
c461cf8f JH |
6755 | |
6756 | =cut | |
6757 | */ | |
6758 | ||
79072805 | 6759 | I32 |
864dbfa3 | 6760 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 6761 | { |
8990e307 LW |
6762 | if (!sv) |
6763 | return 0; | |
79072805 | 6764 | if (SvPOK(sv)) { |
4e35701f NIS |
6765 | register XPV* tXpv; |
6766 | if ((tXpv = (XPV*)SvANY(sv)) && | |
c2f1de04 | 6767 | (tXpv->xpv_cur > 1 || |
4e35701f | 6768 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
6769 | return 1; |
6770 | else | |
6771 | return 0; | |
6772 | } | |
6773 | else { | |
6774 | if (SvIOK(sv)) | |
463ee0b2 | 6775 | return SvIVX(sv) != 0; |
79072805 LW |
6776 | else { |
6777 | if (SvNOK(sv)) | |
463ee0b2 | 6778 | return SvNVX(sv) != 0.0; |
79072805 | 6779 | else |
463ee0b2 | 6780 | return sv_2bool(sv); |
79072805 LW |
6781 | } |
6782 | } | |
6783 | } | |
79072805 | 6784 | |
645c22ef DM |
6785 | /* |
6786 | =for apidoc sv_iv | |
6787 | ||
6788 | A private implementation of the C<SvIVx> macro for compilers which can't | |
6789 | cope with complex macro expressions. Always use the macro instead. | |
6790 | ||
6791 | =cut | |
6792 | */ | |
6793 | ||
ff68c719 | 6794 | IV |
864dbfa3 | 6795 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 6796 | { |
25da4f38 IZ |
6797 | if (SvIOK(sv)) { |
6798 | if (SvIsUV(sv)) | |
6799 | return (IV)SvUVX(sv); | |
ff68c719 | 6800 | return SvIVX(sv); |
25da4f38 | 6801 | } |
ff68c719 | 6802 | return sv_2iv(sv); |
85e6fe83 | 6803 | } |
85e6fe83 | 6804 | |
645c22ef DM |
6805 | /* |
6806 | =for apidoc sv_uv | |
6807 | ||
6808 | A private implementation of the C<SvUVx> macro for compilers which can't | |
6809 | cope with complex macro expressions. Always use the macro instead. | |
6810 | ||
6811 | =cut | |
6812 | */ | |
6813 | ||
ff68c719 | 6814 | UV |
864dbfa3 | 6815 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 6816 | { |
25da4f38 IZ |
6817 | if (SvIOK(sv)) { |
6818 | if (SvIsUV(sv)) | |
6819 | return SvUVX(sv); | |
6820 | return (UV)SvIVX(sv); | |
6821 | } | |
ff68c719 | 6822 | return sv_2uv(sv); |
6823 | } | |
85e6fe83 | 6824 | |
645c22ef DM |
6825 | /* |
6826 | =for apidoc sv_nv | |
6827 | ||
6828 | A private implementation of the C<SvNVx> macro for compilers which can't | |
6829 | cope with complex macro expressions. Always use the macro instead. | |
6830 | ||
6831 | =cut | |
6832 | */ | |
6833 | ||
65202027 | 6834 | NV |
864dbfa3 | 6835 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 6836 | { |
ff68c719 | 6837 | if (SvNOK(sv)) |
6838 | return SvNVX(sv); | |
6839 | return sv_2nv(sv); | |
79072805 | 6840 | } |
79072805 | 6841 | |
645c22ef DM |
6842 | /* |
6843 | =for apidoc sv_pv | |
6844 | ||
baca2b92 | 6845 | Use the C<SvPV_nolen> macro instead |
645c22ef | 6846 | |
645c22ef DM |
6847 | =for apidoc sv_pvn |
6848 | ||
6849 | A private implementation of the C<SvPV> macro for compilers which can't | |
6850 | cope with complex macro expressions. Always use the macro instead. | |
6851 | ||
6852 | =cut | |
6853 | */ | |
6854 | ||
1fa8b10d | 6855 | char * |
864dbfa3 | 6856 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 6857 | { |
85e6fe83 LW |
6858 | if (SvPOK(sv)) { |
6859 | *lp = SvCUR(sv); | |
a0d0e21e | 6860 | return SvPVX(sv); |
85e6fe83 | 6861 | } |
463ee0b2 | 6862 | return sv_2pv(sv, lp); |
79072805 | 6863 | } |
79072805 | 6864 | |
6e9d1081 NC |
6865 | |
6866 | char * | |
6867 | Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp) | |
6868 | { | |
6869 | if (SvPOK(sv)) { | |
6870 | *lp = SvCUR(sv); | |
6871 | return SvPVX(sv); | |
6872 | } | |
6873 | return sv_2pv_flags(sv, lp, 0); | |
6874 | } | |
6875 | ||
c461cf8f JH |
6876 | /* |
6877 | =for apidoc sv_pvn_force | |
6878 | ||
6879 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
6880 | A private implementation of the C<SvPV_force> macro for compilers which |
6881 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f | 6882 | |
8d6d96c1 HS |
6883 | =for apidoc sv_pvn_force_flags |
6884 | ||
6885 | Get a sensible string out of the SV somehow. | |
6886 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
6887 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
6888 | implemented in terms of this function. | |
645c22ef DM |
6889 | You normally want to use the various wrapper macros instead: see |
6890 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
6891 | |
6892 | =cut | |
6893 | */ | |
6894 | ||
6895 | char * | |
6896 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
6897 | { | |
c04a4dfe | 6898 | char *s = NULL; |
a0d0e21e | 6899 | |
6fc92669 GS |
6900 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
6901 | sv_force_normal(sv); | |
1c846c1f | 6902 | |
a0d0e21e LW |
6903 | if (SvPOK(sv)) { |
6904 | *lp = SvCUR(sv); | |
6905 | } | |
6906 | else { | |
748a9306 | 6907 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
cea2e8a9 | 6908 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
53e06cf0 | 6909 | OP_NAME(PL_op)); |
a0d0e21e | 6910 | } |
4633a7c4 | 6911 | else |
8d6d96c1 | 6912 | s = sv_2pv_flags(sv, lp, flags); |
a0d0e21e LW |
6913 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
6914 | STRLEN len = *lp; | |
1c846c1f | 6915 | |
a0d0e21e LW |
6916 | if (SvROK(sv)) |
6917 | sv_unref(sv); | |
6918 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
6919 | SvGROW(sv, len + 1); | |
6920 | Move(s,SvPVX(sv),len,char); | |
6921 | SvCUR_set(sv, len); | |
6922 | *SvEND(sv) = '\0'; | |
6923 | } | |
6924 | if (!SvPOK(sv)) { | |
6925 | SvPOK_on(sv); /* validate pointer */ | |
6926 | SvTAINT(sv); | |
1d7c1841 GS |
6927 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
6928 | PTR2UV(sv),SvPVX(sv))); | |
a0d0e21e LW |
6929 | } |
6930 | } | |
6931 | return SvPVX(sv); | |
6932 | } | |
6933 | ||
645c22ef DM |
6934 | /* |
6935 | =for apidoc sv_pvbyte | |
6936 | ||
baca2b92 | 6937 | Use C<SvPVbyte_nolen> instead. |
645c22ef | 6938 | |
645c22ef DM |
6939 | =for apidoc sv_pvbyten |
6940 | ||
6941 | A private implementation of the C<SvPVbyte> macro for compilers | |
6942 | which can't cope with complex macro expressions. Always use the macro | |
6943 | instead. | |
6944 | ||
6945 | =cut | |
6946 | */ | |
6947 | ||
7340a771 GS |
6948 | char * |
6949 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
6950 | { | |
ffebcc3e | 6951 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6952 | return sv_pvn(sv,lp); |
6953 | } | |
6954 | ||
645c22ef DM |
6955 | /* |
6956 | =for apidoc sv_pvbyten_force | |
6957 | ||
6958 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
6959 | which can't cope with complex macro expressions. Always use the macro | |
6960 | instead. | |
6961 | ||
6962 | =cut | |
6963 | */ | |
6964 | ||
7340a771 GS |
6965 | char * |
6966 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
6967 | { | |
ffebcc3e | 6968 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6969 | return sv_pvn_force(sv,lp); |
6970 | } | |
6971 | ||
645c22ef DM |
6972 | /* |
6973 | =for apidoc sv_pvutf8 | |
6974 | ||
baca2b92 | 6975 | Use the C<SvPVutf8_nolen> macro instead |
645c22ef | 6976 | |
645c22ef DM |
6977 | =for apidoc sv_pvutf8n |
6978 | ||
6979 | A private implementation of the C<SvPVutf8> macro for compilers | |
6980 | which can't cope with complex macro expressions. Always use the macro | |
6981 | instead. | |
6982 | ||
6983 | =cut | |
6984 | */ | |
6985 | ||
7340a771 GS |
6986 | char * |
6987 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
6988 | { | |
560a288e | 6989 | sv_utf8_upgrade(sv); |
7340a771 GS |
6990 | return sv_pvn(sv,lp); |
6991 | } | |
6992 | ||
c461cf8f JH |
6993 | /* |
6994 | =for apidoc sv_pvutf8n_force | |
6995 | ||
645c22ef DM |
6996 | A private implementation of the C<SvPVutf8_force> macro for compilers |
6997 | which can't cope with complex macro expressions. Always use the macro | |
6998 | instead. | |
c461cf8f JH |
6999 | |
7000 | =cut | |
7001 | */ | |
7002 | ||
7340a771 GS |
7003 | char * |
7004 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
7005 | { | |
560a288e | 7006 | sv_utf8_upgrade(sv); |
7340a771 GS |
7007 | return sv_pvn_force(sv,lp); |
7008 | } | |
7009 | ||
c461cf8f JH |
7010 | /* |
7011 | =for apidoc sv_reftype | |
7012 | ||
7013 | Returns a string describing what the SV is a reference to. | |
7014 | ||
7015 | =cut | |
7016 | */ | |
7017 | ||
7340a771 | 7018 | char * |
864dbfa3 | 7019 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e | 7020 | { |
c86bf373 AMS |
7021 | if (ob && SvOBJECT(sv)) { |
7022 | HV *svs = SvSTASH(sv); | |
7023 | /* [20011101.072] This bandaid for C<package;> should eventually | |
7024 | be removed. AMS 20011103 */ | |
7025 | return (svs ? HvNAME(svs) : "<none>"); | |
7026 | } | |
a0d0e21e LW |
7027 | else { |
7028 | switch (SvTYPE(sv)) { | |
7029 | case SVt_NULL: | |
7030 | case SVt_IV: | |
7031 | case SVt_NV: | |
7032 | case SVt_RV: | |
7033 | case SVt_PV: | |
7034 | case SVt_PVIV: | |
7035 | case SVt_PVNV: | |
7036 | case SVt_PVMG: | |
7037 | case SVt_PVBM: | |
7038 | if (SvROK(sv)) | |
7039 | return "REF"; | |
7040 | else | |
7041 | return "SCALAR"; | |
7042 | case SVt_PVLV: return "LVALUE"; | |
7043 | case SVt_PVAV: return "ARRAY"; | |
7044 | case SVt_PVHV: return "HASH"; | |
7045 | case SVt_PVCV: return "CODE"; | |
7046 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 7047 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 7048 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
7049 | default: return "UNKNOWN"; |
7050 | } | |
7051 | } | |
7052 | } | |
7053 | ||
954c1994 GS |
7054 | /* |
7055 | =for apidoc sv_isobject | |
7056 | ||
7057 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
7058 | object. If the SV is not an RV, or if the object is not blessed, then this | |
7059 | will return false. | |
7060 | ||
7061 | =cut | |
7062 | */ | |
7063 | ||
463ee0b2 | 7064 | int |
864dbfa3 | 7065 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 7066 | { |
68dc0745 | 7067 | if (!sv) |
7068 | return 0; | |
7069 | if (SvGMAGICAL(sv)) | |
7070 | mg_get(sv); | |
85e6fe83 LW |
7071 | if (!SvROK(sv)) |
7072 | return 0; | |
7073 | sv = (SV*)SvRV(sv); | |
7074 | if (!SvOBJECT(sv)) | |
7075 | return 0; | |
7076 | return 1; | |
7077 | } | |
7078 | ||
954c1994 GS |
7079 | /* |
7080 | =for apidoc sv_isa | |
7081 | ||
7082 | Returns a boolean indicating whether the SV is blessed into the specified | |
7083 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
7084 | an inheritance relationship. | |
7085 | ||
7086 | =cut | |
7087 | */ | |
7088 | ||
85e6fe83 | 7089 | int |
864dbfa3 | 7090 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 7091 | { |
68dc0745 | 7092 | if (!sv) |
7093 | return 0; | |
7094 | if (SvGMAGICAL(sv)) | |
7095 | mg_get(sv); | |
ed6116ce | 7096 | if (!SvROK(sv)) |
463ee0b2 | 7097 | return 0; |
ed6116ce LW |
7098 | sv = (SV*)SvRV(sv); |
7099 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
7100 | return 0; |
7101 | ||
7102 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
7103 | } | |
7104 | ||
954c1994 GS |
7105 | /* |
7106 | =for apidoc newSVrv | |
7107 | ||
7108 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
7109 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
7110 | be blessed in the specified package. The new SV is returned and its | |
7111 | reference count is 1. | |
7112 | ||
7113 | =cut | |
7114 | */ | |
7115 | ||
463ee0b2 | 7116 | SV* |
864dbfa3 | 7117 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 7118 | { |
463ee0b2 LW |
7119 | SV *sv; |
7120 | ||
4561caa4 | 7121 | new_SV(sv); |
51cf62d8 | 7122 | |
2213622d | 7123 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 | 7124 | SvAMAGIC_off(rv); |
51cf62d8 | 7125 | |
0199fce9 JD |
7126 | if (SvTYPE(rv) >= SVt_PVMG) { |
7127 | U32 refcnt = SvREFCNT(rv); | |
7128 | SvREFCNT(rv) = 0; | |
7129 | sv_clear(rv); | |
7130 | SvFLAGS(rv) = 0; | |
7131 | SvREFCNT(rv) = refcnt; | |
7132 | } | |
7133 | ||
51cf62d8 | 7134 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
7135 | sv_upgrade(rv, SVt_RV); |
7136 | else if (SvTYPE(rv) > SVt_RV) { | |
7137 | (void)SvOOK_off(rv); | |
7138 | if (SvPVX(rv) && SvLEN(rv)) | |
7139 | Safefree(SvPVX(rv)); | |
7140 | SvCUR_set(rv, 0); | |
7141 | SvLEN_set(rv, 0); | |
7142 | } | |
51cf62d8 OT |
7143 | |
7144 | (void)SvOK_off(rv); | |
053fc874 | 7145 | SvRV(rv) = sv; |
ed6116ce | 7146 | SvROK_on(rv); |
463ee0b2 | 7147 | |
a0d0e21e LW |
7148 | if (classname) { |
7149 | HV* stash = gv_stashpv(classname, TRUE); | |
7150 | (void)sv_bless(rv, stash); | |
7151 | } | |
7152 | return sv; | |
7153 | } | |
7154 | ||
954c1994 GS |
7155 | /* |
7156 | =for apidoc sv_setref_pv | |
7157 | ||
7158 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
7159 | argument will be upgraded to an RV. That RV will be modified to point to | |
7160 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
7161 | into the SV. The C<classname> argument indicates the package for the | |
7162 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7163 | will be returned and will have a reference count of 1. | |
7164 | ||
7165 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
7166 | objects will become corrupted by the pointer copy process. | |
7167 | ||
7168 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
7169 | ||
7170 | =cut | |
7171 | */ | |
7172 | ||
a0d0e21e | 7173 | SV* |
864dbfa3 | 7174 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 7175 | { |
189b2af5 | 7176 | if (!pv) { |
3280af22 | 7177 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
7178 | SvSETMAGIC(rv); |
7179 | } | |
a0d0e21e | 7180 | else |
56431972 | 7181 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
7182 | return rv; |
7183 | } | |
7184 | ||
954c1994 GS |
7185 | /* |
7186 | =for apidoc sv_setref_iv | |
7187 | ||
7188 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
7189 | argument will be upgraded to an RV. That RV will be modified to point to | |
7190 | the new SV. The C<classname> argument indicates the package for the | |
7191 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7192 | will be returned and will have a reference count of 1. | |
7193 | ||
7194 | =cut | |
7195 | */ | |
7196 | ||
a0d0e21e | 7197 | SV* |
864dbfa3 | 7198 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
7199 | { |
7200 | sv_setiv(newSVrv(rv,classname), iv); | |
7201 | return rv; | |
7202 | } | |
7203 | ||
954c1994 | 7204 | /* |
e1c57cef JH |
7205 | =for apidoc sv_setref_uv |
7206 | ||
7207 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
7208 | argument will be upgraded to an RV. That RV will be modified to point to | |
7209 | the new SV. The C<classname> argument indicates the package for the | |
7210 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7211 | will be returned and will have a reference count of 1. | |
7212 | ||
7213 | =cut | |
7214 | */ | |
7215 | ||
7216 | SV* | |
7217 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
7218 | { | |
7219 | sv_setuv(newSVrv(rv,classname), uv); | |
7220 | return rv; | |
7221 | } | |
7222 | ||
7223 | /* | |
954c1994 GS |
7224 | =for apidoc sv_setref_nv |
7225 | ||
7226 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
7227 | argument will be upgraded to an RV. That RV will be modified to point to | |
7228 | the new SV. The C<classname> argument indicates the package for the | |
7229 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7230 | will be returned and will have a reference count of 1. | |
7231 | ||
7232 | =cut | |
7233 | */ | |
7234 | ||
a0d0e21e | 7235 | SV* |
65202027 | 7236 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
7237 | { |
7238 | sv_setnv(newSVrv(rv,classname), nv); | |
7239 | return rv; | |
7240 | } | |
463ee0b2 | 7241 | |
954c1994 GS |
7242 | /* |
7243 | =for apidoc sv_setref_pvn | |
7244 | ||
7245 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
7246 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
7247 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
7248 | argument indicates the package for the blessing. Set C<classname> to | |
7249 | C<Nullch> to avoid the blessing. The new SV will be returned and will have | |
7250 | a reference count of 1. | |
7251 | ||
7252 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
7253 | ||
7254 | =cut | |
7255 | */ | |
7256 | ||
a0d0e21e | 7257 | SV* |
864dbfa3 | 7258 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
7259 | { |
7260 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
7261 | return rv; |
7262 | } | |
7263 | ||
954c1994 GS |
7264 | /* |
7265 | =for apidoc sv_bless | |
7266 | ||
7267 | Blesses an SV into a specified package. The SV must be an RV. The package | |
7268 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
7269 | of the SV is unaffected. | |
7270 | ||
7271 | =cut | |
7272 | */ | |
7273 | ||
a0d0e21e | 7274 | SV* |
864dbfa3 | 7275 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 7276 | { |
76e3520e | 7277 | SV *tmpRef; |
a0d0e21e | 7278 | if (!SvROK(sv)) |
cea2e8a9 | 7279 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
7280 | tmpRef = SvRV(sv); |
7281 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
7282 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 7283 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
7284 | if (SvOBJECT(tmpRef)) { |
7285 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7286 | --PL_sv_objcount; |
76e3520e | 7287 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 7288 | } |
a0d0e21e | 7289 | } |
76e3520e GS |
7290 | SvOBJECT_on(tmpRef); |
7291 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7292 | ++PL_sv_objcount; |
76e3520e GS |
7293 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
7294 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e | 7295 | |
2e3febc6 CS |
7296 | if (Gv_AMG(stash)) |
7297 | SvAMAGIC_on(sv); | |
7298 | else | |
7299 | SvAMAGIC_off(sv); | |
a0d0e21e | 7300 | |
1edbfb88 AB |
7301 | if(SvSMAGICAL(tmpRef)) |
7302 | if(mg_find(tmpRef, PERL_MAGIC_ext) || mg_find(tmpRef, PERL_MAGIC_uvar)) | |
7303 | mg_set(tmpRef); | |
7304 | ||
7305 | ||
ecdeb87c | 7306 | |
a0d0e21e LW |
7307 | return sv; |
7308 | } | |
7309 | ||
645c22ef | 7310 | /* Downgrades a PVGV to a PVMG. |
645c22ef DM |
7311 | */ |
7312 | ||
76e3520e | 7313 | STATIC void |
cea2e8a9 | 7314 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 7315 | { |
850fabdf GS |
7316 | void *xpvmg; |
7317 | ||
a0d0e21e LW |
7318 | assert(SvTYPE(sv) == SVt_PVGV); |
7319 | SvFAKE_off(sv); | |
7320 | if (GvGP(sv)) | |
1edc1566 | 7321 | gp_free((GV*)sv); |
e826b3c7 GS |
7322 | if (GvSTASH(sv)) { |
7323 | SvREFCNT_dec(GvSTASH(sv)); | |
7324 | GvSTASH(sv) = Nullhv; | |
7325 | } | |
14befaf4 | 7326 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 7327 | Safefree(GvNAME(sv)); |
a5f75d66 | 7328 | GvMULTI_off(sv); |
850fabdf GS |
7329 | |
7330 | /* need to keep SvANY(sv) in the right arena */ | |
7331 | xpvmg = new_XPVMG(); | |
7332 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
7333 | del_XPVGV(SvANY(sv)); | |
7334 | SvANY(sv) = xpvmg; | |
7335 | ||
a0d0e21e LW |
7336 | SvFLAGS(sv) &= ~SVTYPEMASK; |
7337 | SvFLAGS(sv) |= SVt_PVMG; | |
7338 | } | |
7339 | ||
954c1994 | 7340 | /* |
840a7b70 | 7341 | =for apidoc sv_unref_flags |
954c1994 GS |
7342 | |
7343 | Unsets the RV status of the SV, and decrements the reference count of | |
7344 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
7345 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
7346 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
7347 | (otherwise the decrementing is conditional on the reference count being | |
7348 | different from one or the reference being a readonly SV). | |
7889fe52 | 7349 | See C<SvROK_off>. |
954c1994 GS |
7350 | |
7351 | =cut | |
7352 | */ | |
7353 | ||
ed6116ce | 7354 | void |
840a7b70 | 7355 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 7356 | { |
a0d0e21e | 7357 | SV* rv = SvRV(sv); |
810b8aa5 GS |
7358 | |
7359 | if (SvWEAKREF(sv)) { | |
7360 | sv_del_backref(sv); | |
7361 | SvWEAKREF_off(sv); | |
7362 | SvRV(sv) = 0; | |
7363 | return; | |
7364 | } | |
ed6116ce LW |
7365 | SvRV(sv) = 0; |
7366 | SvROK_off(sv); | |
840a7b70 | 7367 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv) || flags) /* SV_IMMEDIATE_UNREF */ |
4633a7c4 | 7368 | SvREFCNT_dec(rv); |
840a7b70 | 7369 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 7370 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 7371 | } |
8990e307 | 7372 | |
840a7b70 IZ |
7373 | /* |
7374 | =for apidoc sv_unref | |
7375 | ||
7376 | Unsets the RV status of the SV, and decrements the reference count of | |
7377 | whatever was being referenced by the RV. This can almost be thought of | |
7378 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 7379 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
7380 | |
7381 | =cut | |
7382 | */ | |
7383 | ||
7384 | void | |
7385 | Perl_sv_unref(pTHX_ SV *sv) | |
7386 | { | |
7387 | sv_unref_flags(sv, 0); | |
7388 | } | |
7389 | ||
645c22ef DM |
7390 | /* |
7391 | =for apidoc sv_taint | |
7392 | ||
7393 | Taint an SV. Use C<SvTAINTED_on> instead. | |
7394 | =cut | |
7395 | */ | |
7396 | ||
bbce6d69 | 7397 | void |
864dbfa3 | 7398 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 7399 | { |
14befaf4 | 7400 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 7401 | } |
7402 | ||
645c22ef DM |
7403 | /* |
7404 | =for apidoc sv_untaint | |
7405 | ||
7406 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
7407 | =cut | |
7408 | */ | |
7409 | ||
bbce6d69 | 7410 | void |
864dbfa3 | 7411 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 7412 | { |
13f57bf8 | 7413 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7414 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 7415 | if (mg) |
565764a8 | 7416 | mg->mg_len &= ~1; |
36477c24 | 7417 | } |
bbce6d69 | 7418 | } |
7419 | ||
645c22ef DM |
7420 | /* |
7421 | =for apidoc sv_tainted | |
7422 | ||
7423 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
7424 | =cut | |
7425 | */ | |
7426 | ||
bbce6d69 | 7427 | bool |
864dbfa3 | 7428 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 7429 | { |
13f57bf8 | 7430 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7431 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 7432 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 7433 | return TRUE; |
7434 | } | |
7435 | return FALSE; | |
bbce6d69 | 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_setpvf_nocontext(SV *sv, const char* pat, ...) | |
7447 | { | |
7448 | dTHX; | |
7449 | va_list args; | |
7450 | va_start(args, pat); | |
c5be433b | 7451 | sv_vsetpvf(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 | */ | |
cea2e8a9 GS |
7459 | |
7460 | void | |
7461 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7462 | { | |
7463 | dTHX; | |
7464 | va_list args; | |
7465 | va_start(args, pat); | |
c5be433b | 7466 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 7467 | va_end(args); |
cea2e8a9 GS |
7468 | } |
7469 | #endif | |
7470 | ||
954c1994 GS |
7471 | /* |
7472 | =for apidoc sv_setpvf | |
7473 | ||
7474 | Processes its arguments like C<sprintf> and sets an SV to the formatted | |
7475 | output. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
7476 | ||
7477 | =cut | |
7478 | */ | |
7479 | ||
46fc3d4c | 7480 | void |
864dbfa3 | 7481 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7482 | { |
7483 | va_list args; | |
46fc3d4c | 7484 | va_start(args, pat); |
c5be433b | 7485 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 7486 | va_end(args); |
7487 | } | |
7488 | ||
645c22ef DM |
7489 | /* backend for C<sv_setpvf> and C<sv_setpvf_nocontext> */ |
7490 | ||
c5be433b GS |
7491 | void |
7492 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
7493 | { | |
7494 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7495 | } | |
ef50df4b | 7496 | |
954c1994 GS |
7497 | /* |
7498 | =for apidoc sv_setpvf_mg | |
7499 | ||
7500 | Like C<sv_setpvf>, but also handles 'set' magic. | |
7501 | ||
7502 | =cut | |
7503 | */ | |
7504 | ||
ef50df4b | 7505 | void |
864dbfa3 | 7506 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7507 | { |
7508 | va_list args; | |
ef50df4b | 7509 | va_start(args, pat); |
c5be433b | 7510 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 7511 | va_end(args); |
c5be433b GS |
7512 | } |
7513 | ||
645c22ef DM |
7514 | /* backend for C<sv_setpvf_mg> C<setpvf_mg_nocontext> */ |
7515 | ||
c5be433b GS |
7516 | void |
7517 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7518 | { | |
7519 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7520 | SvSETMAGIC(sv); |
7521 | } | |
7522 | ||
cea2e8a9 | 7523 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7524 | |
7525 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7526 | * version of the main function, (which may itself be aliased to us). | |
7527 | * Don't access this version directly. | |
7528 | */ | |
7529 | ||
cea2e8a9 GS |
7530 | void |
7531 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
7532 | { | |
7533 | dTHX; | |
7534 | va_list args; | |
7535 | va_start(args, pat); | |
c5be433b | 7536 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
7537 | va_end(args); |
7538 | } | |
7539 | ||
645c22ef DM |
7540 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7541 | * version of the main function, (which may itself be aliased to us). | |
7542 | * Don't access this version directly. | |
7543 | */ | |
7544 | ||
cea2e8a9 GS |
7545 | void |
7546 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7547 | { | |
7548 | dTHX; | |
7549 | va_list args; | |
7550 | va_start(args, pat); | |
c5be433b | 7551 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 7552 | va_end(args); |
cea2e8a9 GS |
7553 | } |
7554 | #endif | |
7555 | ||
954c1994 GS |
7556 | /* |
7557 | =for apidoc sv_catpvf | |
7558 | ||
d5ce4a7c GA |
7559 | Processes its arguments like C<sprintf> and appends the formatted |
7560 | output to an SV. If the appended data contains "wide" characters | |
7561 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
7562 | and characters >255 formatted with %c), the original SV might get | |
7563 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. | |
7564 | C<SvSETMAGIC()> must typically be called after calling this function | |
7565 | to handle 'set' magic. | |
954c1994 | 7566 | |
d5ce4a7c | 7567 | =cut */ |
954c1994 | 7568 | |
46fc3d4c | 7569 | void |
864dbfa3 | 7570 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7571 | { |
7572 | va_list args; | |
46fc3d4c | 7573 | va_start(args, pat); |
c5be433b | 7574 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 7575 | va_end(args); |
7576 | } | |
7577 | ||
645c22ef DM |
7578 | /* backend for C<sv_catpvf> and C<catpvf_mg_nocontext> */ |
7579 | ||
ef50df4b | 7580 | void |
c5be433b GS |
7581 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
7582 | { | |
7583 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7584 | } | |
7585 | ||
954c1994 GS |
7586 | /* |
7587 | =for apidoc sv_catpvf_mg | |
7588 | ||
7589 | Like C<sv_catpvf>, but also handles 'set' magic. | |
7590 | ||
7591 | =cut | |
7592 | */ | |
7593 | ||
c5be433b | 7594 | void |
864dbfa3 | 7595 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7596 | { |
7597 | va_list args; | |
ef50df4b | 7598 | va_start(args, pat); |
c5be433b | 7599 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 7600 | va_end(args); |
c5be433b GS |
7601 | } |
7602 | ||
645c22ef DM |
7603 | /* backend for C<catpvf_mg> and C<catpvf_mg_nocontext> */ |
7604 | ||
c5be433b GS |
7605 | void |
7606 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7607 | { | |
7608 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7609 | SvSETMAGIC(sv); |
7610 | } | |
7611 | ||
954c1994 GS |
7612 | /* |
7613 | =for apidoc sv_vsetpvfn | |
7614 | ||
7615 | Works like C<vcatpvfn> but copies the text into the SV instead of | |
7616 | appending it. | |
7617 | ||
645c22ef DM |
7618 | Usually used via one of its frontends C<sv_setpvf> and C<sv_setpvf_mg>. |
7619 | ||
954c1994 GS |
7620 | =cut |
7621 | */ | |
7622 | ||
46fc3d4c | 7623 | void |
7d5ea4e7 | 7624 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7625 | { |
7626 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 7627 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 7628 | } |
7629 | ||
645c22ef DM |
7630 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
7631 | ||
2d00ba3b | 7632 | STATIC I32 |
9dd79c3f | 7633 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
7634 | { |
7635 | I32 var = 0; | |
7636 | switch (**pattern) { | |
7637 | case '1': case '2': case '3': | |
7638 | case '4': case '5': case '6': | |
7639 | case '7': case '8': case '9': | |
7640 | while (isDIGIT(**pattern)) | |
7641 | var = var * 10 + (*(*pattern)++ - '0'); | |
7642 | } | |
7643 | return var; | |
7644 | } | |
9dd79c3f | 7645 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 7646 | |
954c1994 GS |
7647 | /* |
7648 | =for apidoc sv_vcatpvfn | |
7649 | ||
7650 | Processes its arguments like C<vsprintf> and appends the formatted output | |
7651 | to an SV. Uses an array of SVs if the C style variable argument list is | |
7652 | missing (NULL). When running with taint checks enabled, indicates via | |
7653 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
7654 | locales). | |
7655 | ||
645c22ef DM |
7656 | Usually used via one of its frontends C<sv_catpvf> and C<sv_catpvf_mg>. |
7657 | ||
954c1994 GS |
7658 | =cut |
7659 | */ | |
7660 | ||
46fc3d4c | 7661 | void |
7d5ea4e7 | 7662 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7663 | { |
7664 | char *p; | |
7665 | char *q; | |
7666 | char *patend; | |
fc36a67e | 7667 | STRLEN origlen; |
46fc3d4c | 7668 | I32 svix = 0; |
c635e13b | 7669 | static char nullstr[] = "(null)"; |
9c5ffd7c | 7670 | SV *argsv = Nullsv; |
2cf2cfc6 | 7671 | bool has_utf8 = FALSE; /* has the result utf8? */ |
46fc3d4c | 7672 | |
7673 | /* no matter what, this is a string now */ | |
fc36a67e | 7674 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 7675 | |
fc36a67e | 7676 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 7677 | if (patlen == 0) |
7678 | return; | |
fc36a67e | 7679 | if (patlen == 2 && pat[0] == '%') { |
7680 | switch (pat[1]) { | |
7681 | case 's': | |
c635e13b | 7682 | if (args) { |
7683 | char *s = va_arg(*args, char*); | |
7684 | sv_catpv(sv, s ? s : nullstr); | |
7685 | } | |
7e2040f0 | 7686 | else if (svix < svmax) { |
fc36a67e | 7687 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
7688 | if (DO_UTF8(*svargs)) |
7689 | SvUTF8_on(sv); | |
7690 | } | |
fc36a67e | 7691 | return; |
7692 | case '_': | |
7693 | if (args) { | |
7e2040f0 GS |
7694 | argsv = va_arg(*args, SV*); |
7695 | sv_catsv(sv, argsv); | |
7696 | if (DO_UTF8(argsv)) | |
7697 | SvUTF8_on(sv); | |
fc36a67e | 7698 | return; |
7699 | } | |
7700 | /* See comment on '_' below */ | |
7701 | break; | |
7702 | } | |
46fc3d4c | 7703 | } |
7704 | ||
2cf2cfc6 A |
7705 | if (!args && svix < svmax && DO_UTF8(*svargs)) |
7706 | has_utf8 = TRUE; | |
7707 | ||
46fc3d4c | 7708 | patend = (char*)pat + patlen; |
7709 | for (p = (char*)pat; p < patend; p = q) { | |
7710 | bool alt = FALSE; | |
7711 | bool left = FALSE; | |
b22c7a20 | 7712 | bool vectorize = FALSE; |
211dfcf1 | 7713 | bool vectorarg = FALSE; |
2cf2cfc6 | 7714 | bool vec_utf8 = FALSE; |
46fc3d4c | 7715 | char fill = ' '; |
7716 | char plus = 0; | |
7717 | char intsize = 0; | |
7718 | STRLEN width = 0; | |
fc36a67e | 7719 | STRLEN zeros = 0; |
46fc3d4c | 7720 | bool has_precis = FALSE; |
7721 | STRLEN precis = 0; | |
2cf2cfc6 | 7722 | bool is_utf8 = FALSE; /* is this item utf8? */ |
eb3fce90 | 7723 | |
46fc3d4c | 7724 | char esignbuf[4]; |
ad391ad9 | 7725 | U8 utf8buf[UTF8_MAXLEN+1]; |
46fc3d4c | 7726 | STRLEN esignlen = 0; |
7727 | ||
7728 | char *eptr = Nullch; | |
fc36a67e | 7729 | STRLEN elen = 0; |
089c015b JH |
7730 | /* Times 4: a decimal digit takes more than 3 binary digits. |
7731 | * NV_DIG: mantissa takes than many decimal digits. | |
7732 | * Plus 32: Playing safe. */ | |
7733 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
2d4389e4 JH |
7734 | /* large enough for "%#.#f" --chip */ |
7735 | /* what about long double NVs? --jhi */ | |
b22c7a20 GS |
7736 | |
7737 | SV *vecsv; | |
a05b299f | 7738 | U8 *vecstr = Null(U8*); |
b22c7a20 | 7739 | STRLEN veclen = 0; |
934abaf1 | 7740 | char c = 0; |
46fc3d4c | 7741 | int i; |
9c5ffd7c | 7742 | unsigned base = 0; |
8c8eb53c RB |
7743 | IV iv = 0; |
7744 | UV uv = 0; | |
9e5b023a JH |
7745 | /* we need a long double target in case HAS_LONG_DOUBLE but |
7746 | not USE_LONG_DOUBLE | |
7747 | */ | |
35fff930 | 7748 | #if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE > DOUBLESIZE |
9e5b023a JH |
7749 | long double nv; |
7750 | #else | |
65202027 | 7751 | NV nv; |
9e5b023a | 7752 | #endif |
46fc3d4c | 7753 | STRLEN have; |
7754 | STRLEN need; | |
7755 | STRLEN gap; | |
b22c7a20 GS |
7756 | char *dotstr = "."; |
7757 | STRLEN dotstrlen = 1; | |
211dfcf1 | 7758 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 7759 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
7760 | I32 epix = 0; /* explicit precision index */ |
7761 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 7762 | bool asterisk = FALSE; |
46fc3d4c | 7763 | |
211dfcf1 | 7764 | /* echo everything up to the next format specification */ |
46fc3d4c | 7765 | for (q = p; q < patend && *q != '%'; ++q) ; |
7766 | if (q > p) { | |
7767 | sv_catpvn(sv, p, q - p); | |
7768 | p = q; | |
7769 | } | |
7770 | if (q++ >= patend) | |
7771 | break; | |
7772 | ||
211dfcf1 HS |
7773 | /* |
7774 | We allow format specification elements in this order: | |
7775 | \d+\$ explicit format parameter index | |
7776 | [-+ 0#]+ flags | |
7777 | \*?(\d+\$)?v vector with optional (optionally specified) arg | |
7778 | \d+|\*(\d+\$)? width using optional (optionally specified) arg | |
7779 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
7780 | [hlqLV] size | |
7781 | [%bcdefginopsux_DFOUX] format (mandatory) | |
7782 | */ | |
7783 | if (EXPECT_NUMBER(q, width)) { | |
7784 | if (*q == '$') { | |
7785 | ++q; | |
7786 | efix = width; | |
7787 | } else { | |
7788 | goto gotwidth; | |
7789 | } | |
7790 | } | |
7791 | ||
fc36a67e | 7792 | /* FLAGS */ |
7793 | ||
46fc3d4c | 7794 | while (*q) { |
7795 | switch (*q) { | |
7796 | case ' ': | |
7797 | case '+': | |
7798 | plus = *q++; | |
7799 | continue; | |
7800 | ||
7801 | case '-': | |
7802 | left = TRUE; | |
7803 | q++; | |
7804 | continue; | |
7805 | ||
7806 | case '0': | |
7807 | fill = *q++; | |
7808 | continue; | |
7809 | ||
7810 | case '#': | |
7811 | alt = TRUE; | |
7812 | q++; | |
7813 | continue; | |
7814 | ||
fc36a67e | 7815 | default: |
7816 | break; | |
7817 | } | |
7818 | break; | |
7819 | } | |
46fc3d4c | 7820 | |
211dfcf1 | 7821 | tryasterisk: |
eb3fce90 | 7822 | if (*q == '*') { |
211dfcf1 HS |
7823 | q++; |
7824 | if (EXPECT_NUMBER(q, ewix)) | |
7825 | if (*q++ != '$') | |
7826 | goto unknown; | |
eb3fce90 | 7827 | asterisk = TRUE; |
211dfcf1 HS |
7828 | } |
7829 | if (*q == 'v') { | |
eb3fce90 | 7830 | q++; |
211dfcf1 HS |
7831 | if (vectorize) |
7832 | goto unknown; | |
9cbac4c7 | 7833 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
7834 | evix = ewix; |
7835 | ewix = 0; | |
7836 | asterisk = FALSE; | |
7837 | } | |
7838 | vectorize = TRUE; | |
7839 | goto tryasterisk; | |
eb3fce90 JH |
7840 | } |
7841 | ||
211dfcf1 HS |
7842 | if (!asterisk) |
7843 | EXPECT_NUMBER(q, width); | |
7844 | ||
7845 | if (vectorize) { | |
7846 | if (vectorarg) { | |
7847 | if (args) | |
7848 | vecsv = va_arg(*args, SV*); | |
7849 | else | |
7850 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
7851 | svargs[ewix ? ewix-1 : svix++] : &PL_sv_undef; | |
4459522c | 7852 | dotstr = SvPVx(vecsv, dotstrlen); |
211dfcf1 | 7853 | if (DO_UTF8(vecsv)) |
2cf2cfc6 | 7854 | is_utf8 = TRUE; |
211dfcf1 HS |
7855 | } |
7856 | if (args) { | |
7857 | vecsv = va_arg(*args, SV*); | |
7858 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 7859 | vec_utf8 = DO_UTF8(vecsv); |
eb3fce90 | 7860 | } |
211dfcf1 HS |
7861 | else if (efix ? efix <= svmax : svix < svmax) { |
7862 | vecsv = svargs[efix ? efix-1 : svix++]; | |
7863 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 7864 | vec_utf8 = DO_UTF8(vecsv); |
211dfcf1 HS |
7865 | } |
7866 | else { | |
7867 | vecstr = (U8*)""; | |
7868 | veclen = 0; | |
7869 | } | |
eb3fce90 | 7870 | } |
fc36a67e | 7871 | |
eb3fce90 | 7872 | if (asterisk) { |
fc36a67e | 7873 | if (args) |
7874 | i = va_arg(*args, int); | |
7875 | else | |
eb3fce90 JH |
7876 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
7877 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7878 | left |= (i < 0); |
7879 | width = (i < 0) ? -i : i; | |
fc36a67e | 7880 | } |
211dfcf1 | 7881 | gotwidth: |
fc36a67e | 7882 | |
7883 | /* PRECISION */ | |
46fc3d4c | 7884 | |
fc36a67e | 7885 | if (*q == '.') { |
7886 | q++; | |
7887 | if (*q == '*') { | |
211dfcf1 | 7888 | q++; |
497b47a8 | 7889 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') /* epix currently unused */ |
211dfcf1 | 7890 | goto unknown; |
46fc3d4c | 7891 | if (args) |
7892 | i = va_arg(*args, int); | |
7893 | else | |
eb3fce90 JH |
7894 | i = (ewix ? ewix <= svmax : svix < svmax) |
7895 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7896 | precis = (i < 0) ? 0 : i; |
fc36a67e | 7897 | } |
7898 | else { | |
7899 | precis = 0; | |
7900 | while (isDIGIT(*q)) | |
7901 | precis = precis * 10 + (*q++ - '0'); | |
7902 | } | |
7903 | has_precis = TRUE; | |
7904 | } | |
46fc3d4c | 7905 | |
fc36a67e | 7906 | /* SIZE */ |
46fc3d4c | 7907 | |
fc36a67e | 7908 | switch (*q) { |
c623ac67 GS |
7909 | #ifdef WIN32 |
7910 | case 'I': /* Ix, I32x, and I64x */ | |
7911 | # ifdef WIN64 | |
7912 | if (q[1] == '6' && q[2] == '4') { | |
7913 | q += 3; | |
7914 | intsize = 'q'; | |
7915 | break; | |
7916 | } | |
7917 | # endif | |
7918 | if (q[1] == '3' && q[2] == '2') { | |
7919 | q += 3; | |
7920 | break; | |
7921 | } | |
7922 | # ifdef WIN64 | |
7923 | intsize = 'q'; | |
7924 | # endif | |
7925 | q++; | |
7926 | break; | |
7927 | #endif | |
9e5b023a | 7928 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
6f9bb7fd | 7929 | case 'L': /* Ld */ |
e5c81feb | 7930 | /* FALL THROUGH */ |
e5c81feb | 7931 | #ifdef HAS_QUAD |
6f9bb7fd | 7932 | case 'q': /* qd */ |
9e5b023a | 7933 | #endif |
6f9bb7fd GS |
7934 | intsize = 'q'; |
7935 | q++; | |
7936 | break; | |
7937 | #endif | |
fc36a67e | 7938 | case 'l': |
9e5b023a | 7939 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
e5c81feb | 7940 | if (*(q + 1) == 'l') { /* lld, llf */ |
fc36a67e | 7941 | intsize = 'q'; |
7942 | q += 2; | |
46fc3d4c | 7943 | break; |
cf2093f6 | 7944 | } |
fc36a67e | 7945 | #endif |
6f9bb7fd | 7946 | /* FALL THROUGH */ |
fc36a67e | 7947 | case 'h': |
cf2093f6 | 7948 | /* FALL THROUGH */ |
fc36a67e | 7949 | case 'V': |
7950 | intsize = *q++; | |
46fc3d4c | 7951 | break; |
7952 | } | |
7953 | ||
fc36a67e | 7954 | /* CONVERSION */ |
7955 | ||
211dfcf1 HS |
7956 | if (*q == '%') { |
7957 | eptr = q++; | |
7958 | elen = 1; | |
7959 | goto string; | |
7960 | } | |
7961 | ||
be75b157 HS |
7962 | if (vectorize) |
7963 | argsv = vecsv; | |
7964 | else if (!args) | |
211dfcf1 HS |
7965 | argsv = (efix ? efix <= svmax : svix < svmax) ? |
7966 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
7967 | ||
46fc3d4c | 7968 | switch (c = *q++) { |
7969 | ||
7970 | /* STRINGS */ | |
7971 | ||
46fc3d4c | 7972 | case 'c': |
be75b157 | 7973 | uv = (args && !vectorize) ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
7974 | if ((uv > 255 || |
7975 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 7976 | && !IN_BYTES) { |
dfe13c55 | 7977 | eptr = (char*)utf8buf; |
9041c2e3 | 7978 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
2cf2cfc6 | 7979 | is_utf8 = TRUE; |
7e2040f0 GS |
7980 | } |
7981 | else { | |
7982 | c = (char)uv; | |
7983 | eptr = &c; | |
7984 | elen = 1; | |
a0ed51b3 | 7985 | } |
46fc3d4c | 7986 | goto string; |
7987 | ||
46fc3d4c | 7988 | case 's': |
be75b157 | 7989 | if (args && !vectorize) { |
fc36a67e | 7990 | eptr = va_arg(*args, char*); |
c635e13b | 7991 | if (eptr) |
1d7c1841 GS |
7992 | #ifdef MACOS_TRADITIONAL |
7993 | /* On MacOS, %#s format is used for Pascal strings */ | |
7994 | if (alt) | |
7995 | elen = *eptr++; | |
7996 | else | |
7997 | #endif | |
c635e13b | 7998 | elen = strlen(eptr); |
7999 | else { | |
8000 | eptr = nullstr; | |
8001 | elen = sizeof nullstr - 1; | |
8002 | } | |
46fc3d4c | 8003 | } |
211dfcf1 | 8004 | else { |
7e2040f0 GS |
8005 | eptr = SvPVx(argsv, elen); |
8006 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
8007 | if (has_precis && precis < elen) { |
8008 | I32 p = precis; | |
7e2040f0 | 8009 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
8010 | precis = p; |
8011 | } | |
8012 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 8013 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 8014 | } |
2cf2cfc6 | 8015 | is_utf8 = TRUE; |
a0ed51b3 LW |
8016 | } |
8017 | } | |
46fc3d4c | 8018 | goto string; |
8019 | ||
fc36a67e | 8020 | case '_': |
8021 | /* | |
8022 | * The "%_" hack might have to be changed someday, | |
8023 | * if ISO or ANSI decide to use '_' for something. | |
8024 | * So we keep it hidden from users' code. | |
8025 | */ | |
be75b157 | 8026 | if (!args || vectorize) |
fc36a67e | 8027 | goto unknown; |
211dfcf1 | 8028 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
8029 | eptr = SvPVx(argsv, elen); |
8030 | if (DO_UTF8(argsv)) | |
2cf2cfc6 | 8031 | is_utf8 = TRUE; |
fc36a67e | 8032 | |
46fc3d4c | 8033 | string: |
b22c7a20 | 8034 | vectorize = FALSE; |
46fc3d4c | 8035 | if (has_precis && elen > precis) |
8036 | elen = precis; | |
8037 | break; | |
8038 | ||
8039 | /* INTEGERS */ | |
8040 | ||
fc36a67e | 8041 | case 'p': |
be75b157 | 8042 | if (alt || vectorize) |
c2e66d9e | 8043 | goto unknown; |
211dfcf1 | 8044 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 8045 | base = 16; |
8046 | goto integer; | |
8047 | ||
46fc3d4c | 8048 | case 'D': |
29fe7a80 | 8049 | #ifdef IV_IS_QUAD |
22f3ae8c | 8050 | intsize = 'q'; |
29fe7a80 | 8051 | #else |
46fc3d4c | 8052 | intsize = 'l'; |
29fe7a80 | 8053 | #endif |
46fc3d4c | 8054 | /* FALL THROUGH */ |
8055 | case 'd': | |
8056 | case 'i': | |
b22c7a20 | 8057 | if (vectorize) { |
ba210ebe | 8058 | STRLEN ulen; |
211dfcf1 HS |
8059 | if (!veclen) |
8060 | continue; | |
2cf2cfc6 A |
8061 | if (vec_utf8) |
8062 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
8063 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 8064 | else { |
e83d50c9 | 8065 | uv = *vecstr; |
b22c7a20 GS |
8066 | ulen = 1; |
8067 | } | |
8068 | vecstr += ulen; | |
8069 | veclen -= ulen; | |
e83d50c9 JP |
8070 | if (plus) |
8071 | esignbuf[esignlen++] = plus; | |
b22c7a20 GS |
8072 | } |
8073 | else if (args) { | |
46fc3d4c | 8074 | switch (intsize) { |
8075 | case 'h': iv = (short)va_arg(*args, int); break; | |
8076 | default: iv = va_arg(*args, int); break; | |
8077 | case 'l': iv = va_arg(*args, long); break; | |
fc36a67e | 8078 | case 'V': iv = va_arg(*args, IV); break; |
cf2093f6 JH |
8079 | #ifdef HAS_QUAD |
8080 | case 'q': iv = va_arg(*args, Quad_t); break; | |
8081 | #endif | |
46fc3d4c | 8082 | } |
8083 | } | |
8084 | else { | |
211dfcf1 | 8085 | iv = SvIVx(argsv); |
46fc3d4c | 8086 | switch (intsize) { |
8087 | case 'h': iv = (short)iv; break; | |
be28567c | 8088 | default: break; |
46fc3d4c | 8089 | case 'l': iv = (long)iv; break; |
fc36a67e | 8090 | case 'V': break; |
cf2093f6 JH |
8091 | #ifdef HAS_QUAD |
8092 | case 'q': iv = (Quad_t)iv; break; | |
8093 | #endif | |
46fc3d4c | 8094 | } |
8095 | } | |
e83d50c9 JP |
8096 | if ( !vectorize ) /* we already set uv above */ |
8097 | { | |
8098 | if (iv >= 0) { | |
8099 | uv = iv; | |
8100 | if (plus) | |
8101 | esignbuf[esignlen++] = plus; | |
8102 | } | |
8103 | else { | |
8104 | uv = -iv; | |
8105 | esignbuf[esignlen++] = '-'; | |
8106 | } | |
46fc3d4c | 8107 | } |
8108 | base = 10; | |
8109 | goto integer; | |
8110 | ||
fc36a67e | 8111 | case 'U': |
29fe7a80 | 8112 | #ifdef IV_IS_QUAD |
22f3ae8c | 8113 | intsize = 'q'; |
29fe7a80 | 8114 | #else |
fc36a67e | 8115 | intsize = 'l'; |
29fe7a80 | 8116 | #endif |
fc36a67e | 8117 | /* FALL THROUGH */ |
8118 | case 'u': | |
8119 | base = 10; | |
8120 | goto uns_integer; | |
8121 | ||
4f19785b WSI |
8122 | case 'b': |
8123 | base = 2; | |
8124 | goto uns_integer; | |
8125 | ||
46fc3d4c | 8126 | case 'O': |
29fe7a80 | 8127 | #ifdef IV_IS_QUAD |
22f3ae8c | 8128 | intsize = 'q'; |
29fe7a80 | 8129 | #else |
46fc3d4c | 8130 | intsize = 'l'; |
29fe7a80 | 8131 | #endif |
46fc3d4c | 8132 | /* FALL THROUGH */ |
8133 | case 'o': | |
8134 | base = 8; | |
8135 | goto uns_integer; | |
8136 | ||
8137 | case 'X': | |
46fc3d4c | 8138 | case 'x': |
8139 | base = 16; | |
46fc3d4c | 8140 | |
8141 | uns_integer: | |
b22c7a20 | 8142 | if (vectorize) { |
ba210ebe | 8143 | STRLEN ulen; |
b22c7a20 | 8144 | vector: |
211dfcf1 HS |
8145 | if (!veclen) |
8146 | continue; | |
2cf2cfc6 A |
8147 | if (vec_utf8) |
8148 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
8149 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 8150 | else { |
a05b299f | 8151 | uv = *vecstr; |
b22c7a20 GS |
8152 | ulen = 1; |
8153 | } | |
8154 | vecstr += ulen; | |
8155 | veclen -= ulen; | |
8156 | } | |
8157 | else if (args) { | |
46fc3d4c | 8158 | switch (intsize) { |
8159 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
8160 | default: uv = va_arg(*args, unsigned); break; | |
8161 | case 'l': uv = va_arg(*args, unsigned long); break; | |
fc36a67e | 8162 | case 'V': uv = va_arg(*args, UV); break; |
cf2093f6 JH |
8163 | #ifdef HAS_QUAD |
8164 | case 'q': uv = va_arg(*args, Quad_t); break; | |
8165 | #endif | |
46fc3d4c | 8166 | } |
8167 | } | |
8168 | else { | |
211dfcf1 | 8169 | uv = SvUVx(argsv); |
46fc3d4c | 8170 | switch (intsize) { |
8171 | case 'h': uv = (unsigned short)uv; break; | |
be28567c | 8172 | default: break; |
46fc3d4c | 8173 | case 'l': uv = (unsigned long)uv; break; |
fc36a67e | 8174 | case 'V': break; |
cf2093f6 JH |
8175 | #ifdef HAS_QUAD |
8176 | case 'q': uv = (Quad_t)uv; break; | |
8177 | #endif | |
46fc3d4c | 8178 | } |
8179 | } | |
8180 | ||
8181 | integer: | |
46fc3d4c | 8182 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 8183 | switch (base) { |
8184 | unsigned dig; | |
8185 | case 16: | |
c10ed8b9 HS |
8186 | if (!uv) |
8187 | alt = FALSE; | |
1d7c1841 GS |
8188 | p = (char*)((c == 'X') |
8189 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 8190 | do { |
8191 | dig = uv & 15; | |
8192 | *--eptr = p[dig]; | |
8193 | } while (uv >>= 4); | |
8194 | if (alt) { | |
46fc3d4c | 8195 | esignbuf[esignlen++] = '0'; |
fc36a67e | 8196 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 8197 | } |
fc36a67e | 8198 | break; |
8199 | case 8: | |
8200 | do { | |
8201 | dig = uv & 7; | |
8202 | *--eptr = '0' + dig; | |
8203 | } while (uv >>= 3); | |
8204 | if (alt && *eptr != '0') | |
8205 | *--eptr = '0'; | |
8206 | break; | |
4f19785b WSI |
8207 | case 2: |
8208 | do { | |
8209 | dig = uv & 1; | |
8210 | *--eptr = '0' + dig; | |
8211 | } while (uv >>= 1); | |
eda88b6d JH |
8212 | if (alt) { |
8213 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 8214 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 8215 | } |
4f19785b | 8216 | break; |
fc36a67e | 8217 | default: /* it had better be ten or less */ |
6bc102ca | 8218 | #if defined(PERL_Y2KWARN) |
e476b1b5 | 8219 | if (ckWARN(WARN_Y2K)) { |
6bc102ca GS |
8220 | STRLEN n; |
8221 | char *s = SvPV(sv,n); | |
8222 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
8223 | && (n == 2 || !isDIGIT(s[n-3]))) | |
8224 | { | |
9014280d | 8225 | Perl_warner(aTHX_ packWARN(WARN_Y2K), |
6bc102ca GS |
8226 | "Possible Y2K bug: %%%c %s", |
8227 | c, "format string following '19'"); | |
8228 | } | |
8229 | } | |
8230 | #endif | |
fc36a67e | 8231 | do { |
8232 | dig = uv % base; | |
8233 | *--eptr = '0' + dig; | |
8234 | } while (uv /= base); | |
8235 | break; | |
46fc3d4c | 8236 | } |
8237 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
8238 | if (has_precis) { |
8239 | if (precis > elen) | |
8240 | zeros = precis - elen; | |
8241 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
8242 | elen = 0; | |
8243 | } | |
46fc3d4c | 8244 | break; |
8245 | ||
8246 | /* FLOATING POINT */ | |
8247 | ||
fc36a67e | 8248 | case 'F': |
8249 | c = 'f'; /* maybe %F isn't supported here */ | |
8250 | /* FALL THROUGH */ | |
46fc3d4c | 8251 | case 'e': case 'E': |
fc36a67e | 8252 | case 'f': |
46fc3d4c | 8253 | case 'g': case 'G': |
8254 | ||
8255 | /* This is evil, but floating point is even more evil */ | |
8256 | ||
9e5b023a JH |
8257 | /* for SV-style calling, we can only get NV |
8258 | for C-style calling, we assume %f is double; | |
8259 | for simplicity we allow any of %Lf, %llf, %qf for long double | |
8260 | */ | |
8261 | switch (intsize) { | |
8262 | case 'V': | |
8263 | #if defined(USE_LONG_DOUBLE) | |
8264 | intsize = 'q'; | |
8265 | #endif | |
8266 | break; | |
8267 | default: | |
8268 | #if defined(USE_LONG_DOUBLE) | |
8269 | intsize = args ? 0 : 'q'; | |
8270 | #endif | |
8271 | break; | |
8272 | case 'q': | |
8273 | #if defined(HAS_LONG_DOUBLE) | |
8274 | break; | |
8275 | #else | |
8276 | /* FALL THROUGH */ | |
8277 | #endif | |
8278 | case 'h': | |
8279 | /* FALL THROUGH */ | |
8280 | case 'l': | |
8281 | goto unknown; | |
8282 | } | |
8283 | ||
8284 | /* now we need (long double) if intsize == 'q', else (double) */ | |
be75b157 | 8285 | nv = (args && !vectorize) ? |
35fff930 JH |
8286 | #if LONG_DOUBLESIZE > DOUBLESIZE |
8287 | intsize == 'q' ? | |
8288 | va_arg(*args, long double) : | |
8289 | va_arg(*args, double) | |
8290 | #else | |
8291 | va_arg(*args, double) | |
8292 | #endif | |
9e5b023a | 8293 | : SvNVx(argsv); |
fc36a67e | 8294 | |
8295 | need = 0; | |
be75b157 | 8296 | vectorize = FALSE; |
fc36a67e | 8297 | if (c != 'e' && c != 'E') { |
8298 | i = PERL_INT_MIN; | |
9e5b023a JH |
8299 | /* FIXME: if HAS_LONG_DOUBLE but not USE_LONG_DOUBLE this |
8300 | will cast our (long double) to (double) */ | |
73b309ea | 8301 | (void)Perl_frexp(nv, &i); |
fc36a67e | 8302 | if (i == PERL_INT_MIN) |
cea2e8a9 | 8303 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 8304 | if (i > 0) |
fc36a67e | 8305 | need = BIT_DIGITS(i); |
8306 | } | |
8307 | need += has_precis ? precis : 6; /* known default */ | |
8308 | if (need < width) | |
8309 | need = width; | |
8310 | ||
46fc3d4c | 8311 | need += 20; /* fudge factor */ |
80252599 GS |
8312 | if (PL_efloatsize < need) { |
8313 | Safefree(PL_efloatbuf); | |
8314 | PL_efloatsize = need + 20; /* more fudge */ | |
8315 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 8316 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 8317 | } |
8318 | ||
8319 | eptr = ebuf + sizeof ebuf; | |
8320 | *--eptr = '\0'; | |
8321 | *--eptr = c; | |
9e5b023a JH |
8322 | /* FIXME: what to do if HAS_LONG_DOUBLE but not PERL_PRIfldbl? */ |
8323 | #if defined(HAS_LONG_DOUBLE) && defined(PERL_PRIfldbl) | |
8324 | if (intsize == 'q') { | |
e5c81feb JH |
8325 | /* Copy the one or more characters in a long double |
8326 | * format before the 'base' ([efgEFG]) character to | |
8327 | * the format string. */ | |
8328 | static char const prifldbl[] = PERL_PRIfldbl; | |
8329 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
8330 | while (p >= prifldbl) { *--eptr = *p--; } | |
cf2093f6 | 8331 | } |
65202027 | 8332 | #endif |
46fc3d4c | 8333 | if (has_precis) { |
8334 | base = precis; | |
8335 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8336 | *--eptr = '.'; | |
8337 | } | |
8338 | if (width) { | |
8339 | base = width; | |
8340 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8341 | } | |
8342 | if (fill == '0') | |
8343 | *--eptr = fill; | |
84902520 TB |
8344 | if (left) |
8345 | *--eptr = '-'; | |
46fc3d4c | 8346 | if (plus) |
8347 | *--eptr = plus; | |
8348 | if (alt) | |
8349 | *--eptr = '#'; | |
8350 | *--eptr = '%'; | |
8351 | ||
ff9121f8 JH |
8352 | /* No taint. Otherwise we are in the strange situation |
8353 | * where printf() taints but print($float) doesn't. | |
bda0f7a5 | 8354 | * --jhi */ |
9e5b023a JH |
8355 | #if defined(HAS_LONG_DOUBLE) |
8356 | if (intsize == 'q') | |
8357 | (void)sprintf(PL_efloatbuf, eptr, nv); | |
8358 | else | |
8359 | (void)sprintf(PL_efloatbuf, eptr, (double)nv); | |
8360 | #else | |
dd8482fc | 8361 | (void)sprintf(PL_efloatbuf, eptr, nv); |
9e5b023a | 8362 | #endif |
80252599 GS |
8363 | eptr = PL_efloatbuf; |
8364 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 8365 | break; |
8366 | ||
fc36a67e | 8367 | /* SPECIAL */ |
8368 | ||
8369 | case 'n': | |
8370 | i = SvCUR(sv) - origlen; | |
be75b157 | 8371 | if (args && !vectorize) { |
c635e13b | 8372 | switch (intsize) { |
8373 | case 'h': *(va_arg(*args, short*)) = i; break; | |
8374 | default: *(va_arg(*args, int*)) = i; break; | |
8375 | case 'l': *(va_arg(*args, long*)) = i; break; | |
8376 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
8377 | #ifdef HAS_QUAD |
8378 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
8379 | #endif | |
c635e13b | 8380 | } |
fc36a67e | 8381 | } |
9dd79c3f | 8382 | else |
211dfcf1 | 8383 | sv_setuv_mg(argsv, (UV)i); |
be75b157 | 8384 | vectorize = FALSE; |
fc36a67e | 8385 | continue; /* not "break" */ |
8386 | ||
8387 | /* UNKNOWN */ | |
8388 | ||
46fc3d4c | 8389 | default: |
fc36a67e | 8390 | unknown: |
b22c7a20 | 8391 | vectorize = FALSE; |
599cee73 | 8392 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 8393 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 8394 | SV *msg = sv_newmortal(); |
cea2e8a9 | 8395 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ", |
533c011a | 8396 | (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); |
0f4b6630 | 8397 | if (c) { |
0f4b6630 | 8398 | if (isPRINT(c)) |
1c846c1f | 8399 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
8400 | "\"%%%c\"", c & 0xFF); |
8401 | else | |
8402 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 8403 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 8404 | (UV)c & 0xFF); |
0f4b6630 | 8405 | } else |
c635e13b | 8406 | sv_catpv(msg, "end of string"); |
9014280d | 8407 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 8408 | } |
fb73857a | 8409 | |
8410 | /* output mangled stuff ... */ | |
8411 | if (c == '\0') | |
8412 | --q; | |
46fc3d4c | 8413 | eptr = p; |
8414 | elen = q - p; | |
fb73857a | 8415 | |
8416 | /* ... right here, because formatting flags should not apply */ | |
8417 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8418 | p = SvEND(sv); | |
4459522c | 8419 | Copy(eptr, p, elen, char); |
fb73857a | 8420 | p += elen; |
8421 | *p = '\0'; | |
8422 | SvCUR(sv) = p - SvPVX(sv); | |
8423 | continue; /* not "break" */ | |
46fc3d4c | 8424 | } |
8425 | ||
d2876be5 JH |
8426 | if (is_utf8 != has_utf8) { |
8427 | if (is_utf8) { | |
8428 | if (SvCUR(sv)) | |
8429 | sv_utf8_upgrade(sv); | |
8430 | } | |
8431 | else { | |
8432 | SV *nsv = sv_2mortal(newSVpvn(eptr, elen)); | |
8433 | sv_utf8_upgrade(nsv); | |
8434 | eptr = SvPVX(nsv); | |
8435 | elen = SvCUR(nsv); | |
8436 | } | |
8437 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8438 | p = SvEND(sv); | |
8439 | *p = '\0'; | |
8440 | } | |
8441 | ||
fc36a67e | 8442 | have = esignlen + zeros + elen; |
46fc3d4c | 8443 | need = (have > width ? have : width); |
8444 | gap = need - have; | |
8445 | ||
b22c7a20 | 8446 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 8447 | p = SvEND(sv); |
8448 | if (esignlen && fill == '0') { | |
eb160463 | 8449 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 8450 | *p++ = esignbuf[i]; |
8451 | } | |
8452 | if (gap && !left) { | |
8453 | memset(p, fill, gap); | |
8454 | p += gap; | |
8455 | } | |
8456 | if (esignlen && fill != '0') { | |
eb160463 | 8457 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 8458 | *p++ = esignbuf[i]; |
8459 | } | |
fc36a67e | 8460 | if (zeros) { |
8461 | for (i = zeros; i; i--) | |
8462 | *p++ = '0'; | |
8463 | } | |
46fc3d4c | 8464 | if (elen) { |
4459522c | 8465 | Copy(eptr, p, elen, char); |
46fc3d4c | 8466 | p += elen; |
8467 | } | |
8468 | if (gap && left) { | |
8469 | memset(p, ' ', gap); | |
8470 | p += gap; | |
8471 | } | |
b22c7a20 GS |
8472 | if (vectorize) { |
8473 | if (veclen) { | |
4459522c | 8474 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
8475 | p += dotstrlen; |
8476 | } | |
8477 | else | |
8478 | vectorize = FALSE; /* done iterating over vecstr */ | |
8479 | } | |
2cf2cfc6 A |
8480 | if (is_utf8) |
8481 | has_utf8 = TRUE; | |
8482 | if (has_utf8) | |
7e2040f0 | 8483 | SvUTF8_on(sv); |
46fc3d4c | 8484 | *p = '\0'; |
8485 | SvCUR(sv) = p - SvPVX(sv); | |
b22c7a20 GS |
8486 | if (vectorize) { |
8487 | esignlen = 0; | |
8488 | goto vector; | |
8489 | } | |
46fc3d4c | 8490 | } |
8491 | } | |
51371543 | 8492 | |
645c22ef DM |
8493 | /* ========================================================================= |
8494 | ||
8495 | =head1 Cloning an interpreter | |
8496 | ||
8497 | All the macros and functions in this section are for the private use of | |
8498 | the main function, perl_clone(). | |
8499 | ||
8500 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
8501 | During the course of a cloning, a hash table is used to map old addresses | |
8502 | to new addresses. The table is created and manipulated with the | |
8503 | ptr_table_* functions. | |
8504 | ||
8505 | =cut | |
8506 | ||
8507 | ============================================================================*/ | |
8508 | ||
8509 | ||
1d7c1841 GS |
8510 | #if defined(USE_ITHREADS) |
8511 | ||
4d1ff10f AB |
8512 | #if defined(USE_5005THREADS) |
8513 | # include "error: USE_5005THREADS and USE_ITHREADS are incompatible" | |
1d7c1841 GS |
8514 | #endif |
8515 | ||
1d7c1841 GS |
8516 | #ifndef GpREFCNT_inc |
8517 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
8518 | #endif | |
8519 | ||
8520 | ||
d2d73c3e AB |
8521 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
8522 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
8523 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8524 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
8525 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8526 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
8527 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8528 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
8529 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8530 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
8531 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
8532 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
8533 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
8cf8f3d1 | 8534 | |
d2d73c3e | 8535 | |
d2f185dc AMS |
8536 | /* Duplicate a regexp. Required reading: pregcomp() and pregfree() in |
8537 | regcomp.c. AMS 20010712 */ | |
645c22ef | 8538 | |
1d7c1841 | 8539 | REGEXP * |
a8fc9800 | 8540 | Perl_re_dup(pTHX_ REGEXP *r, CLONE_PARAMS *param) |
1d7c1841 | 8541 | { |
d2f185dc AMS |
8542 | REGEXP *ret; |
8543 | int i, len, npar; | |
8544 | struct reg_substr_datum *s; | |
8545 | ||
8546 | if (!r) | |
8547 | return (REGEXP *)NULL; | |
8548 | ||
8549 | if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) | |
8550 | return ret; | |
8551 | ||
8552 | len = r->offsets[0]; | |
8553 | npar = r->nparens+1; | |
8554 | ||
8555 | Newc(0, ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); | |
8556 | Copy(r->program, ret->program, len+1, regnode); | |
8557 | ||
8558 | New(0, ret->startp, npar, I32); | |
8559 | Copy(r->startp, ret->startp, npar, I32); | |
8560 | New(0, ret->endp, npar, I32); | |
8561 | Copy(r->startp, ret->startp, npar, I32); | |
8562 | ||
d2f185dc AMS |
8563 | New(0, ret->substrs, 1, struct reg_substr_data); |
8564 | for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { | |
8565 | s->min_offset = r->substrs->data[i].min_offset; | |
8566 | s->max_offset = r->substrs->data[i].max_offset; | |
8567 | s->substr = sv_dup_inc(r->substrs->data[i].substr, param); | |
33b8afdf | 8568 | s->utf8_substr = sv_dup_inc(r->substrs->data[i].utf8_substr, param); |
d2f185dc AMS |
8569 | } |
8570 | ||
70612e96 | 8571 | ret->regstclass = NULL; |
d2f185dc AMS |
8572 | if (r->data) { |
8573 | struct reg_data *d; | |
8574 | int count = r->data->count; | |
8575 | ||
8576 | Newc(0, d, sizeof(struct reg_data) + count*sizeof(void *), | |
8577 | char, struct reg_data); | |
8578 | New(0, d->what, count, U8); | |
8579 | ||
8580 | d->count = count; | |
8581 | for (i = 0; i < count; i++) { | |
8582 | d->what[i] = r->data->what[i]; | |
8583 | switch (d->what[i]) { | |
8584 | case 's': | |
8585 | d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); | |
8586 | break; | |
8587 | case 'p': | |
8588 | d->data[i] = av_dup_inc((AV *)r->data->data[i], param); | |
8589 | break; | |
8590 | case 'f': | |
8591 | /* This is cheating. */ | |
8592 | New(0, d->data[i], 1, struct regnode_charclass_class); | |
8593 | StructCopy(r->data->data[i], d->data[i], | |
8594 | struct regnode_charclass_class); | |
70612e96 | 8595 | ret->regstclass = (regnode*)d->data[i]; |
d2f185dc AMS |
8596 | break; |
8597 | case 'o': | |
33773810 AMS |
8598 | /* Compiled op trees are readonly, and can thus be |
8599 | shared without duplication. */ | |
9b978d73 DM |
8600 | d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); |
8601 | break; | |
d2f185dc AMS |
8602 | case 'n': |
8603 | d->data[i] = r->data->data[i]; | |
8604 | break; | |
8605 | } | |
8606 | } | |
8607 | ||
8608 | ret->data = d; | |
8609 | } | |
8610 | else | |
8611 | ret->data = NULL; | |
8612 | ||
8613 | New(0, ret->offsets, 2*len+1, U32); | |
8614 | Copy(r->offsets, ret->offsets, 2*len+1, U32); | |
8615 | ||
8616 | ret->precomp = SAVEPV(r->precomp); | |
d2f185dc AMS |
8617 | ret->refcnt = r->refcnt; |
8618 | ret->minlen = r->minlen; | |
8619 | ret->prelen = r->prelen; | |
8620 | ret->nparens = r->nparens; | |
8621 | ret->lastparen = r->lastparen; | |
8622 | ret->lastcloseparen = r->lastcloseparen; | |
8623 | ret->reganch = r->reganch; | |
8624 | ||
70612e96 RG |
8625 | ret->sublen = r->sublen; |
8626 | ||
8627 | if (RX_MATCH_COPIED(ret)) | |
8628 | ret->subbeg = SAVEPV(r->subbeg); | |
8629 | else | |
8630 | ret->subbeg = Nullch; | |
8631 | ||
d2f185dc AMS |
8632 | ptr_table_store(PL_ptr_table, r, ret); |
8633 | return ret; | |
1d7c1841 GS |
8634 | } |
8635 | ||
d2d73c3e | 8636 | /* duplicate a file handle */ |
645c22ef | 8637 | |
1d7c1841 | 8638 | PerlIO * |
a8fc9800 | 8639 | Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) |
1d7c1841 GS |
8640 | { |
8641 | PerlIO *ret; | |
8642 | if (!fp) | |
8643 | return (PerlIO*)NULL; | |
8644 | ||
8645 | /* look for it in the table first */ | |
8646 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
8647 | if (ret) | |
8648 | return ret; | |
8649 | ||
8650 | /* create anew and remember what it is */ | |
ecdeb87c | 8651 | ret = PerlIO_fdupopen(aTHX_ fp, param, PERLIO_DUP_CLONE); |
1d7c1841 GS |
8652 | ptr_table_store(PL_ptr_table, fp, ret); |
8653 | return ret; | |
8654 | } | |
8655 | ||
645c22ef DM |
8656 | /* duplicate a directory handle */ |
8657 | ||
1d7c1841 GS |
8658 | DIR * |
8659 | Perl_dirp_dup(pTHX_ DIR *dp) | |
8660 | { | |
8661 | if (!dp) | |
8662 | return (DIR*)NULL; | |
8663 | /* XXX TODO */ | |
8664 | return dp; | |
8665 | } | |
8666 | ||
ff276b08 | 8667 | /* duplicate a typeglob */ |
645c22ef | 8668 | |
1d7c1841 | 8669 | GP * |
a8fc9800 | 8670 | Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) |
1d7c1841 GS |
8671 | { |
8672 | GP *ret; | |
8673 | if (!gp) | |
8674 | return (GP*)NULL; | |
8675 | /* look for it in the table first */ | |
8676 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
8677 | if (ret) | |
8678 | return ret; | |
8679 | ||
8680 | /* create anew and remember what it is */ | |
8681 | Newz(0, ret, 1, GP); | |
8682 | ptr_table_store(PL_ptr_table, gp, ret); | |
8683 | ||
8684 | /* clone */ | |
8685 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
8686 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
8687 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
8688 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
8689 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
8690 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
8691 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
8692 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
8693 | ret->gp_cvgen = gp->gp_cvgen; |
8694 | ret->gp_flags = gp->gp_flags; | |
8695 | ret->gp_line = gp->gp_line; | |
8696 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
8697 | return ret; | |
8698 | } | |
8699 | ||
645c22ef DM |
8700 | /* duplicate a chain of magic */ |
8701 | ||
1d7c1841 | 8702 | MAGIC * |
a8fc9800 | 8703 | Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS* param) |
1d7c1841 | 8704 | { |
cb359b41 JH |
8705 | MAGIC *mgprev = (MAGIC*)NULL; |
8706 | MAGIC *mgret; | |
1d7c1841 GS |
8707 | if (!mg) |
8708 | return (MAGIC*)NULL; | |
8709 | /* look for it in the table first */ | |
8710 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
8711 | if (mgret) | |
8712 | return mgret; | |
8713 | ||
8714 | for (; mg; mg = mg->mg_moremagic) { | |
8715 | MAGIC *nmg; | |
8716 | Newz(0, nmg, 1, MAGIC); | |
cb359b41 | 8717 | if (mgprev) |
1d7c1841 | 8718 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
8719 | else |
8720 | mgret = nmg; | |
1d7c1841 GS |
8721 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
8722 | nmg->mg_private = mg->mg_private; | |
8723 | nmg->mg_type = mg->mg_type; | |
8724 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 8725 | if (mg->mg_type == PERL_MAGIC_qr) { |
d2f185dc | 8726 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj, param); |
1d7c1841 | 8727 | } |
05bd4103 JH |
8728 | else if(mg->mg_type == PERL_MAGIC_backref) { |
8729 | AV *av = (AV*) mg->mg_obj; | |
8730 | SV **svp; | |
8731 | I32 i; | |
8732 | nmg->mg_obj = (SV*)newAV(); | |
8733 | svp = AvARRAY(av); | |
8734 | i = AvFILLp(av); | |
8735 | while (i >= 0) { | |
8736 | av_push((AV*)nmg->mg_obj,sv_dup(svp[i],param)); | |
8737 | i--; | |
8738 | } | |
8739 | } | |
1d7c1841 GS |
8740 | else { |
8741 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
8742 | ? sv_dup_inc(mg->mg_obj, param) |
8743 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
8744 | } |
8745 | nmg->mg_len = mg->mg_len; | |
8746 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 8747 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
68795e93 | 8748 | if (mg->mg_len > 0) { |
1d7c1841 | 8749 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); |
14befaf4 DM |
8750 | if (mg->mg_type == PERL_MAGIC_overload_table && |
8751 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
8752 | { | |
1d7c1841 GS |
8753 | AMT *amtp = (AMT*)mg->mg_ptr; |
8754 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
8755 | I32 i; | |
8756 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 8757 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
8758 | } |
8759 | } | |
8760 | } | |
8761 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 8762 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 | 8763 | } |
68795e93 NIS |
8764 | if ((mg->mg_flags & MGf_DUP) && mg->mg_virtual && mg->mg_virtual->svt_dup) { |
8765 | CALL_FPTR(nmg->mg_virtual->svt_dup)(aTHX_ nmg, param); | |
8766 | } | |
1d7c1841 GS |
8767 | mgprev = nmg; |
8768 | } | |
8769 | return mgret; | |
8770 | } | |
8771 | ||
645c22ef DM |
8772 | /* create a new pointer-mapping table */ |
8773 | ||
1d7c1841 GS |
8774 | PTR_TBL_t * |
8775 | Perl_ptr_table_new(pTHX) | |
8776 | { | |
8777 | PTR_TBL_t *tbl; | |
8778 | Newz(0, tbl, 1, PTR_TBL_t); | |
8779 | tbl->tbl_max = 511; | |
8780 | tbl->tbl_items = 0; | |
8781 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
8782 | return tbl; | |
8783 | } | |
8784 | ||
645c22ef DM |
8785 | /* map an existing pointer using a table */ |
8786 | ||
1d7c1841 GS |
8787 | void * |
8788 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
8789 | { | |
8790 | PTR_TBL_ENT_t *tblent; | |
d2a79402 | 8791 | UV hash = PTR2UV(sv); |
1d7c1841 GS |
8792 | assert(tbl); |
8793 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
8794 | for (; tblent; tblent = tblent->next) { | |
8795 | if (tblent->oldval == sv) | |
8796 | return tblent->newval; | |
8797 | } | |
8798 | return (void*)NULL; | |
8799 | } | |
8800 | ||
645c22ef DM |
8801 | /* add a new entry to a pointer-mapping table */ |
8802 | ||
1d7c1841 GS |
8803 | void |
8804 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
8805 | { | |
8806 | PTR_TBL_ENT_t *tblent, **otblent; | |
8807 | /* XXX this may be pessimal on platforms where pointers aren't good | |
8808 | * hash values e.g. if they grow faster in the most significant | |
8809 | * bits */ | |
d2a79402 | 8810 | UV hash = PTR2UV(oldv); |
1d7c1841 GS |
8811 | bool i = 1; |
8812 | ||
8813 | assert(tbl); | |
8814 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
8815 | for (tblent = *otblent; tblent; i=0, tblent = tblent->next) { | |
8816 | if (tblent->oldval == oldv) { | |
8817 | tblent->newval = newv; | |
1d7c1841 GS |
8818 | return; |
8819 | } | |
8820 | } | |
8821 | Newz(0, tblent, 1, PTR_TBL_ENT_t); | |
8822 | tblent->oldval = oldv; | |
8823 | tblent->newval = newv; | |
8824 | tblent->next = *otblent; | |
8825 | *otblent = tblent; | |
8826 | tbl->tbl_items++; | |
8827 | if (i && tbl->tbl_items > tbl->tbl_max) | |
8828 | ptr_table_split(tbl); | |
8829 | } | |
8830 | ||
645c22ef DM |
8831 | /* double the hash bucket size of an existing ptr table */ |
8832 | ||
1d7c1841 GS |
8833 | void |
8834 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
8835 | { | |
8836 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
8837 | UV oldsize = tbl->tbl_max + 1; | |
8838 | UV newsize = oldsize * 2; | |
8839 | UV i; | |
8840 | ||
8841 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
8842 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
8843 | tbl->tbl_max = --newsize; | |
8844 | tbl->tbl_ary = ary; | |
8845 | for (i=0; i < oldsize; i++, ary++) { | |
8846 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
8847 | if (!*ary) | |
8848 | continue; | |
8849 | curentp = ary + oldsize; | |
8850 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
d2a79402 | 8851 | if ((newsize & PTR2UV(ent->oldval)) != i) { |
1d7c1841 GS |
8852 | *entp = ent->next; |
8853 | ent->next = *curentp; | |
8854 | *curentp = ent; | |
8855 | continue; | |
8856 | } | |
8857 | else | |
8858 | entp = &ent->next; | |
8859 | } | |
8860 | } | |
8861 | } | |
8862 | ||
645c22ef DM |
8863 | /* remove all the entries from a ptr table */ |
8864 | ||
a0739874 DM |
8865 | void |
8866 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
8867 | { | |
8868 | register PTR_TBL_ENT_t **array; | |
8869 | register PTR_TBL_ENT_t *entry; | |
8870 | register PTR_TBL_ENT_t *oentry = Null(PTR_TBL_ENT_t*); | |
8871 | UV riter = 0; | |
8872 | UV max; | |
8873 | ||
8874 | if (!tbl || !tbl->tbl_items) { | |
8875 | return; | |
8876 | } | |
8877 | ||
8878 | array = tbl->tbl_ary; | |
8879 | entry = array[0]; | |
8880 | max = tbl->tbl_max; | |
8881 | ||
8882 | for (;;) { | |
8883 | if (entry) { | |
8884 | oentry = entry; | |
8885 | entry = entry->next; | |
8886 | Safefree(oentry); | |
8887 | } | |
8888 | if (!entry) { | |
8889 | if (++riter > max) { | |
8890 | break; | |
8891 | } | |
8892 | entry = array[riter]; | |
8893 | } | |
8894 | } | |
8895 | ||
8896 | tbl->tbl_items = 0; | |
8897 | } | |
8898 | ||
645c22ef DM |
8899 | /* clear and free a ptr table */ |
8900 | ||
a0739874 DM |
8901 | void |
8902 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
8903 | { | |
8904 | if (!tbl) { | |
8905 | return; | |
8906 | } | |
8907 | ptr_table_clear(tbl); | |
8908 | Safefree(tbl->tbl_ary); | |
8909 | Safefree(tbl); | |
8910 | } | |
8911 | ||
1d7c1841 GS |
8912 | #ifdef DEBUGGING |
8913 | char *PL_watch_pvx; | |
8914 | #endif | |
8915 | ||
645c22ef DM |
8916 | /* attempt to make everything in the typeglob readonly */ |
8917 | ||
5bd07a3d | 8918 | STATIC SV * |
59b40662 | 8919 | S_gv_share(pTHX_ SV *sstr, CLONE_PARAMS *param) |
5bd07a3d DM |
8920 | { |
8921 | GV *gv = (GV*)sstr; | |
59b40662 | 8922 | SV *sv = ¶m->proto_perl->Isv_no; /* just need SvREADONLY-ness */ |
5bd07a3d DM |
8923 | |
8924 | if (GvIO(gv) || GvFORM(gv)) { | |
7fb37951 | 8925 | GvUNIQUE_off(gv); /* GvIOs cannot be shared. nor can GvFORMs */ |
5bd07a3d DM |
8926 | } |
8927 | else if (!GvCV(gv)) { | |
8928 | GvCV(gv) = (CV*)sv; | |
8929 | } | |
8930 | else { | |
8931 | /* CvPADLISTs cannot be shared */ | |
37e20706 | 8932 | if (!SvREADONLY(GvCV(gv)) && !CvXSUB(GvCV(gv))) { |
7fb37951 | 8933 | GvUNIQUE_off(gv); |
5bd07a3d DM |
8934 | } |
8935 | } | |
8936 | ||
7fb37951 | 8937 | if (!GvUNIQUE(gv)) { |
5bd07a3d DM |
8938 | #if 0 |
8939 | PerlIO_printf(Perl_debug_log, "gv_share: unable to share %s::%s\n", | |
8940 | HvNAME(GvSTASH(gv)), GvNAME(gv)); | |
8941 | #endif | |
8942 | return Nullsv; | |
8943 | } | |
8944 | ||
4411f3b6 | 8945 | /* |
5bd07a3d DM |
8946 | * write attempts will die with |
8947 | * "Modification of a read-only value attempted" | |
8948 | */ | |
8949 | if (!GvSV(gv)) { | |
8950 | GvSV(gv) = sv; | |
8951 | } | |
8952 | else { | |
8953 | SvREADONLY_on(GvSV(gv)); | |
8954 | } | |
8955 | ||
8956 | if (!GvAV(gv)) { | |
8957 | GvAV(gv) = (AV*)sv; | |
8958 | } | |
8959 | else { | |
8960 | SvREADONLY_on(GvAV(gv)); | |
8961 | } | |
8962 | ||
8963 | if (!GvHV(gv)) { | |
8964 | GvHV(gv) = (HV*)sv; | |
8965 | } | |
8966 | else { | |
8967 | SvREADONLY_on(GvAV(gv)); | |
8968 | } | |
8969 | ||
8970 | return sstr; /* he_dup() will SvREFCNT_inc() */ | |
8971 | } | |
8972 | ||
645c22ef DM |
8973 | /* duplicate an SV of any type (including AV, HV etc) */ |
8974 | ||
83841fad NIS |
8975 | void |
8976 | Perl_rvpv_dup(pTHX_ SV *dstr, SV *sstr, CLONE_PARAMS* param) | |
8977 | { | |
8978 | if (SvROK(sstr)) { | |
8979 | SvRV(dstr) = SvWEAKREF(sstr) | |
8980 | ? sv_dup(SvRV(sstr), param) | |
8981 | : sv_dup_inc(SvRV(sstr), param); | |
8982 | } | |
8983 | else if (SvPVX(sstr)) { | |
8984 | /* Has something there */ | |
8985 | if (SvLEN(sstr)) { | |
68795e93 | 8986 | /* Normal PV - clone whole allocated space */ |
83841fad | 8987 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); |
68795e93 | 8988 | } |
83841fad NIS |
8989 | else { |
8990 | /* Special case - not normally malloced for some reason */ | |
8991 | if (SvREADONLY(sstr) && SvFAKE(sstr)) { | |
8992 | /* A "shared" PV - clone it as unshared string */ | |
8993 | SvFAKE_off(dstr); | |
8994 | SvREADONLY_off(dstr); | |
8995 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvCUR(sstr)); | |
8996 | } | |
8997 | else { | |
8998 | /* Some other special case - random pointer */ | |
8999 | SvPVX(dstr) = SvPVX(sstr); | |
9000 | } | |
9001 | } | |
9002 | } | |
9003 | else { | |
9004 | /* Copy the Null */ | |
9005 | SvPVX(dstr) = SvPVX(sstr); | |
9006 | } | |
9007 | } | |
9008 | ||
1d7c1841 | 9009 | SV * |
a8fc9800 | 9010 | Perl_sv_dup(pTHX_ SV *sstr, CLONE_PARAMS* param) |
1d7c1841 | 9011 | { |
1d7c1841 GS |
9012 | SV *dstr; |
9013 | ||
9014 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
9015 | return Nullsv; | |
9016 | /* look for it in the table first */ | |
9017 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
9018 | if (dstr) | |
9019 | return dstr; | |
9020 | ||
9021 | /* create anew and remember what it is */ | |
9022 | new_SV(dstr); | |
9023 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
9024 | ||
9025 | /* clone */ | |
9026 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
9027 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
9028 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
9029 | ||
9030 | #ifdef DEBUGGING | |
9031 | if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) | |
9032 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", | |
9033 | PL_watch_pvx, SvPVX(sstr)); | |
9034 | #endif | |
9035 | ||
9036 | switch (SvTYPE(sstr)) { | |
9037 | case SVt_NULL: | |
9038 | SvANY(dstr) = NULL; | |
9039 | break; | |
9040 | case SVt_IV: | |
9041 | SvANY(dstr) = new_XIV(); | |
9042 | SvIVX(dstr) = SvIVX(sstr); | |
9043 | break; | |
9044 | case SVt_NV: | |
9045 | SvANY(dstr) = new_XNV(); | |
9046 | SvNVX(dstr) = SvNVX(sstr); | |
9047 | break; | |
9048 | case SVt_RV: | |
9049 | SvANY(dstr) = new_XRV(); | |
83841fad | 9050 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9051 | break; |
9052 | case SVt_PV: | |
9053 | SvANY(dstr) = new_XPV(); | |
9054 | SvCUR(dstr) = SvCUR(sstr); | |
9055 | SvLEN(dstr) = SvLEN(sstr); | |
83841fad | 9056 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9057 | break; |
9058 | case SVt_PVIV: | |
9059 | SvANY(dstr) = new_XPVIV(); | |
9060 | SvCUR(dstr) = SvCUR(sstr); | |
9061 | SvLEN(dstr) = SvLEN(sstr); | |
9062 | SvIVX(dstr) = SvIVX(sstr); | |
83841fad | 9063 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9064 | break; |
9065 | case SVt_PVNV: | |
9066 | SvANY(dstr) = new_XPVNV(); | |
9067 | SvCUR(dstr) = SvCUR(sstr); | |
9068 | SvLEN(dstr) = SvLEN(sstr); | |
9069 | SvIVX(dstr) = SvIVX(sstr); | |
9070 | SvNVX(dstr) = SvNVX(sstr); | |
83841fad | 9071 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9072 | break; |
9073 | case SVt_PVMG: | |
9074 | SvANY(dstr) = new_XPVMG(); | |
9075 | SvCUR(dstr) = SvCUR(sstr); | |
9076 | SvLEN(dstr) = SvLEN(sstr); | |
9077 | SvIVX(dstr) = SvIVX(sstr); | |
9078 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9079 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9080 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9081 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9082 | break; |
9083 | case SVt_PVBM: | |
9084 | SvANY(dstr) = new_XPVBM(); | |
9085 | SvCUR(dstr) = SvCUR(sstr); | |
9086 | SvLEN(dstr) = SvLEN(sstr); | |
9087 | SvIVX(dstr) = SvIVX(sstr); | |
9088 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9089 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9090 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9091 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9092 | BmRARE(dstr) = BmRARE(sstr); |
9093 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
9094 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
9095 | break; | |
9096 | case SVt_PVLV: | |
9097 | SvANY(dstr) = new_XPVLV(); | |
9098 | SvCUR(dstr) = SvCUR(sstr); | |
9099 | SvLEN(dstr) = SvLEN(sstr); | |
9100 | SvIVX(dstr) = SvIVX(sstr); | |
9101 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9102 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9103 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9104 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9105 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ |
9106 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
d2d73c3e | 9107 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); |
1d7c1841 GS |
9108 | LvTYPE(dstr) = LvTYPE(sstr); |
9109 | break; | |
9110 | case SVt_PVGV: | |
7fb37951 | 9111 | if (GvUNIQUE((GV*)sstr)) { |
5bd07a3d | 9112 | SV *share; |
59b40662 | 9113 | if ((share = gv_share(sstr, param))) { |
5bd07a3d DM |
9114 | del_SV(dstr); |
9115 | dstr = share; | |
37e20706 | 9116 | ptr_table_store(PL_ptr_table, sstr, dstr); |
5bd07a3d DM |
9117 | #if 0 |
9118 | PerlIO_printf(Perl_debug_log, "sv_dup: sharing %s::%s\n", | |
9119 | HvNAME(GvSTASH(share)), GvNAME(share)); | |
9120 | #endif | |
9121 | break; | |
9122 | } | |
9123 | } | |
1d7c1841 GS |
9124 | SvANY(dstr) = new_XPVGV(); |
9125 | SvCUR(dstr) = SvCUR(sstr); | |
9126 | SvLEN(dstr) = SvLEN(sstr); | |
9127 | SvIVX(dstr) = SvIVX(sstr); | |
9128 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9129 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9130 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9131 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9132 | GvNAMELEN(dstr) = GvNAMELEN(sstr); |
9133 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 9134 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 9135 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 9136 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
9137 | (void)GpREFCNT_inc(GvGP(dstr)); |
9138 | break; | |
9139 | case SVt_PVIO: | |
9140 | SvANY(dstr) = new_XPVIO(); | |
9141 | SvCUR(dstr) = SvCUR(sstr); | |
9142 | SvLEN(dstr) = SvLEN(sstr); | |
9143 | SvIVX(dstr) = SvIVX(sstr); | |
9144 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9145 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9146 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9147 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
a8fc9800 | 9148 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9149 | if (IoOFP(sstr) == IoIFP(sstr)) |
9150 | IoOFP(dstr) = IoIFP(dstr); | |
9151 | else | |
a8fc9800 | 9152 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9153 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
9154 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
9155 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
9156 | else | |
9157 | IoDIRP(dstr) = IoDIRP(sstr); | |
9158 | IoLINES(dstr) = IoLINES(sstr); | |
9159 | IoPAGE(dstr) = IoPAGE(sstr); | |
9160 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
9161 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
9162 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); | |
d2d73c3e | 9163 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); |
1d7c1841 | 9164 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
d2d73c3e | 9165 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); |
1d7c1841 | 9166 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
d2d73c3e | 9167 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); |
1d7c1841 GS |
9168 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
9169 | IoTYPE(dstr) = IoTYPE(sstr); | |
9170 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
9171 | break; | |
9172 | case SVt_PVAV: | |
9173 | SvANY(dstr) = new_XPVAV(); | |
9174 | SvCUR(dstr) = SvCUR(sstr); | |
9175 | SvLEN(dstr) = SvLEN(sstr); | |
9176 | SvIVX(dstr) = SvIVX(sstr); | |
9177 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9178 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9179 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
9180 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); | |
1d7c1841 GS |
9181 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
9182 | if (AvARRAY((AV*)sstr)) { | |
9183 | SV **dst_ary, **src_ary; | |
9184 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
9185 | ||
9186 | src_ary = AvARRAY((AV*)sstr); | |
9187 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
9188 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
9189 | SvPVX(dstr) = (char*)dst_ary; | |
9190 | AvALLOC((AV*)dstr) = dst_ary; | |
9191 | if (AvREAL((AV*)sstr)) { | |
9192 | while (items-- > 0) | |
d2d73c3e | 9193 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
9194 | } |
9195 | else { | |
9196 | while (items-- > 0) | |
d2d73c3e | 9197 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
9198 | } |
9199 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
9200 | while (items-- > 0) { | |
9201 | *dst_ary++ = &PL_sv_undef; | |
9202 | } | |
9203 | } | |
9204 | else { | |
9205 | SvPVX(dstr) = Nullch; | |
9206 | AvALLOC((AV*)dstr) = (SV**)NULL; | |
9207 | } | |
9208 | break; | |
9209 | case SVt_PVHV: | |
9210 | SvANY(dstr) = new_XPVHV(); | |
9211 | SvCUR(dstr) = SvCUR(sstr); | |
9212 | SvLEN(dstr) = SvLEN(sstr); | |
9213 | SvIVX(dstr) = SvIVX(sstr); | |
9214 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9215 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9216 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
9217 | HvRITER((HV*)dstr) = HvRITER((HV*)sstr); |
9218 | if (HvARRAY((HV*)sstr)) { | |
1d7c1841 GS |
9219 | STRLEN i = 0; |
9220 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
9221 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
9222 | Newz(0, dxhv->xhv_array, | |
9223 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); | |
9224 | while (i <= sxhv->xhv_max) { | |
9225 | ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], | |
eb160463 GS |
9226 | (bool)!!HvSHAREKEYS(sstr), |
9227 | param); | |
1d7c1841 GS |
9228 | ++i; |
9229 | } | |
eb160463 GS |
9230 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, |
9231 | (bool)!!HvSHAREKEYS(sstr), param); | |
1d7c1841 GS |
9232 | } |
9233 | else { | |
9234 | SvPVX(dstr) = Nullch; | |
9235 | HvEITER((HV*)dstr) = (HE*)NULL; | |
9236 | } | |
9237 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
9238 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
c43294b8 | 9239 | /* Record stashes for possible cloning in Perl_clone(). */ |
6676db26 | 9240 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 9241 | av_push(param->stashes, dstr); |
1d7c1841 GS |
9242 | break; |
9243 | case SVt_PVFM: | |
9244 | SvANY(dstr) = new_XPVFM(); | |
9245 | FmLINES(dstr) = FmLINES(sstr); | |
9246 | goto dup_pvcv; | |
9247 | /* NOTREACHED */ | |
9248 | case SVt_PVCV: | |
9249 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 9250 | dup_pvcv: |
1d7c1841 GS |
9251 | SvCUR(dstr) = SvCUR(sstr); |
9252 | SvLEN(dstr) = SvLEN(sstr); | |
9253 | SvIVX(dstr) = SvIVX(sstr); | |
9254 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9255 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9256 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9257 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
d2d73c3e | 9258 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 GS |
9259 | CvSTART(dstr) = CvSTART(sstr); |
9260 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); | |
9261 | CvXSUB(dstr) = CvXSUB(sstr); | |
9262 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
01485f8b DM |
9263 | if (CvCONST(sstr)) { |
9264 | CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(sstr)) ? | |
9265 | SvREFCNT_inc(CvXSUBANY(sstr).any_ptr) : | |
9266 | sv_dup_inc(CvXSUBANY(sstr).any_ptr, param); | |
9267 | } | |
d2d73c3e AB |
9268 | CvGV(dstr) = gv_dup(CvGV(sstr), param); |
9269 | if (param->flags & CLONEf_COPY_STACKS) { | |
9270 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
9271 | } else { | |
9272 | CvDEPTH(dstr) = 0; | |
9273 | } | |
1d7c1841 GS |
9274 | if (CvPADLIST(sstr) && !AvREAL(CvPADLIST(sstr))) { |
9275 | /* XXX padlists are real, but pretend to be not */ | |
9276 | AvREAL_on(CvPADLIST(sstr)); | |
d2d73c3e | 9277 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
1d7c1841 GS |
9278 | AvREAL_off(CvPADLIST(sstr)); |
9279 | AvREAL_off(CvPADLIST(dstr)); | |
9280 | } | |
9281 | else | |
d2d73c3e | 9282 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
282f25c9 | 9283 | if (!CvANON(sstr) || CvCLONED(sstr)) |
d2d73c3e | 9284 | CvOUTSIDE(dstr) = cv_dup_inc(CvOUTSIDE(sstr), param); |
282f25c9 | 9285 | else |
d2d73c3e | 9286 | CvOUTSIDE(dstr) = cv_dup(CvOUTSIDE(sstr), param); |
1d7c1841 | 9287 | CvFLAGS(dstr) = CvFLAGS(sstr); |
54356c7d | 9288 | CvFILE(dstr) = CvXSUB(sstr) ? CvFILE(sstr) : SAVEPV(CvFILE(sstr)); |
1d7c1841 GS |
9289 | break; |
9290 | default: | |
c803eecc | 9291 | Perl_croak(aTHX_ "Bizarre SvTYPE [%" IVdf "]", (IV)SvTYPE(sstr)); |
1d7c1841 GS |
9292 | break; |
9293 | } | |
9294 | ||
9295 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
9296 | ++PL_sv_objcount; | |
9297 | ||
9298 | return dstr; | |
d2d73c3e | 9299 | } |
1d7c1841 | 9300 | |
645c22ef DM |
9301 | /* duplicate a context */ |
9302 | ||
1d7c1841 | 9303 | PERL_CONTEXT * |
a8fc9800 | 9304 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) |
1d7c1841 GS |
9305 | { |
9306 | PERL_CONTEXT *ncxs; | |
9307 | ||
9308 | if (!cxs) | |
9309 | return (PERL_CONTEXT*)NULL; | |
9310 | ||
9311 | /* look for it in the table first */ | |
9312 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
9313 | if (ncxs) | |
9314 | return ncxs; | |
9315 | ||
9316 | /* create anew and remember what it is */ | |
9317 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
9318 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
9319 | ||
9320 | while (ix >= 0) { | |
9321 | PERL_CONTEXT *cx = &cxs[ix]; | |
9322 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
9323 | ncx->cx_type = cx->cx_type; | |
9324 | if (CxTYPE(cx) == CXt_SUBST) { | |
9325 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
9326 | } | |
9327 | else { | |
9328 | ncx->blk_oldsp = cx->blk_oldsp; | |
9329 | ncx->blk_oldcop = cx->blk_oldcop; | |
9330 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
9331 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
9332 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
9333 | ncx->blk_oldpm = cx->blk_oldpm; | |
9334 | ncx->blk_gimme = cx->blk_gimme; | |
9335 | switch (CxTYPE(cx)) { | |
9336 | case CXt_SUB: | |
9337 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
9338 | ? cv_dup_inc(cx->blk_sub.cv, param) |
9339 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 9340 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 9341 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 9342 | : Nullav); |
d2d73c3e | 9343 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
9344 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
9345 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
9346 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
9347 | break; | |
9348 | case CXt_EVAL: | |
9349 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
9350 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
b47cad08 | 9351 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param); |
1d7c1841 | 9352 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 9353 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
1d7c1841 GS |
9354 | break; |
9355 | case CXt_LOOP: | |
9356 | ncx->blk_loop.label = cx->blk_loop.label; | |
9357 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
9358 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
9359 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
9360 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
9361 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
9362 | ? cx->blk_loop.iterdata | |
d2d73c3e | 9363 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
a4b82a6f GS |
9364 | ncx->blk_loop.oldcurpad |
9365 | = (SV**)ptr_table_fetch(PL_ptr_table, | |
9366 | cx->blk_loop.oldcurpad); | |
d2d73c3e AB |
9367 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
9368 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
9369 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
9370 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
9371 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
9372 | break; | |
9373 | case CXt_FORMAT: | |
d2d73c3e AB |
9374 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
9375 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
9376 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 GS |
9377 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
9378 | break; | |
9379 | case CXt_BLOCK: | |
9380 | case CXt_NULL: | |
9381 | break; | |
9382 | } | |
9383 | } | |
9384 | --ix; | |
9385 | } | |
9386 | return ncxs; | |
9387 | } | |
9388 | ||
645c22ef DM |
9389 | /* duplicate a stack info structure */ |
9390 | ||
1d7c1841 | 9391 | PERL_SI * |
a8fc9800 | 9392 | Perl_si_dup(pTHX_ PERL_SI *si, CLONE_PARAMS* param) |
1d7c1841 GS |
9393 | { |
9394 | PERL_SI *nsi; | |
9395 | ||
9396 | if (!si) | |
9397 | return (PERL_SI*)NULL; | |
9398 | ||
9399 | /* look for it in the table first */ | |
9400 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
9401 | if (nsi) | |
9402 | return nsi; | |
9403 | ||
9404 | /* create anew and remember what it is */ | |
9405 | Newz(56, nsi, 1, PERL_SI); | |
9406 | ptr_table_store(PL_ptr_table, si, nsi); | |
9407 | ||
d2d73c3e | 9408 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
9409 | nsi->si_cxix = si->si_cxix; |
9410 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 9411 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 9412 | nsi->si_type = si->si_type; |
d2d73c3e AB |
9413 | nsi->si_prev = si_dup(si->si_prev, param); |
9414 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
9415 | nsi->si_markoff = si->si_markoff; |
9416 | ||
9417 | return nsi; | |
9418 | } | |
9419 | ||
9420 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
9421 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
9422 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
9423 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
9424 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
9425 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
9426 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) | |
9427 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
9428 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
9429 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
9430 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
9431 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
9432 | ||
9433 | /* XXXXX todo */ | |
9434 | #define pv_dup_inc(p) SAVEPV(p) | |
9435 | #define pv_dup(p) SAVEPV(p) | |
9436 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
9437 | ||
645c22ef DM |
9438 | /* map any object to the new equivent - either something in the |
9439 | * ptr table, or something in the interpreter structure | |
9440 | */ | |
9441 | ||
1d7c1841 GS |
9442 | void * |
9443 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
9444 | { | |
9445 | void *ret; | |
9446 | ||
9447 | if (!v) | |
9448 | return (void*)NULL; | |
9449 | ||
9450 | /* look for it in the table first */ | |
9451 | ret = ptr_table_fetch(PL_ptr_table, v); | |
9452 | if (ret) | |
9453 | return ret; | |
9454 | ||
9455 | /* see if it is part of the interpreter structure */ | |
9456 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
acfe0abc | 9457 | ret = (void*)(((char*)aTHX) + (((char*)v) - (char*)proto_perl)); |
05ec9bb3 | 9458 | else { |
1d7c1841 | 9459 | ret = v; |
05ec9bb3 | 9460 | } |
1d7c1841 GS |
9461 | |
9462 | return ret; | |
9463 | } | |
9464 | ||
645c22ef DM |
9465 | /* duplicate the save stack */ |
9466 | ||
1d7c1841 | 9467 | ANY * |
a8fc9800 | 9468 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) |
1d7c1841 GS |
9469 | { |
9470 | ANY *ss = proto_perl->Tsavestack; | |
9471 | I32 ix = proto_perl->Tsavestack_ix; | |
9472 | I32 max = proto_perl->Tsavestack_max; | |
9473 | ANY *nss; | |
9474 | SV *sv; | |
9475 | GV *gv; | |
9476 | AV *av; | |
9477 | HV *hv; | |
9478 | void* ptr; | |
9479 | int intval; | |
9480 | long longval; | |
9481 | GP *gp; | |
9482 | IV iv; | |
9483 | I32 i; | |
c4e33207 | 9484 | char *c = NULL; |
1d7c1841 | 9485 | void (*dptr) (void*); |
acfe0abc | 9486 | void (*dxptr) (pTHX_ void*); |
e977893f | 9487 | OP *o; |
1d7c1841 GS |
9488 | |
9489 | Newz(54, nss, max, ANY); | |
9490 | ||
9491 | while (ix > 0) { | |
9492 | i = POPINT(ss,ix); | |
9493 | TOPINT(nss,ix) = i; | |
9494 | switch (i) { | |
9495 | case SAVEt_ITEM: /* normal string */ | |
9496 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9497 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9498 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9499 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9500 | break; |
9501 | case SAVEt_SV: /* scalar reference */ | |
9502 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9503 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9504 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9505 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 9506 | break; |
f4dd75d9 GS |
9507 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
9508 | c = (char*)POPPTR(ss,ix); | |
9509 | TOPPTR(nss,ix) = pv_dup(c); | |
9510 | ptr = POPPTR(ss,ix); | |
9511 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9512 | break; | |
05ec9bb3 NIS |
9513 | case SAVEt_SHARED_PVREF: /* char* in shared space */ |
9514 | c = (char*)POPPTR(ss,ix); | |
9515 | TOPPTR(nss,ix) = savesharedpv(c); | |
9516 | ptr = POPPTR(ss,ix); | |
9517 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9518 | break; | |
1d7c1841 GS |
9519 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
9520 | case SAVEt_SVREF: /* scalar reference */ | |
9521 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9522 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9523 | ptr = POPPTR(ss,ix); |
9524 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
9525 | break; | |
9526 | case SAVEt_AV: /* array reference */ | |
9527 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9528 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 9529 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9530 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9531 | break; |
9532 | case SAVEt_HV: /* hash reference */ | |
9533 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9534 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 9535 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9536 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9537 | break; |
9538 | case SAVEt_INT: /* int reference */ | |
9539 | ptr = POPPTR(ss,ix); | |
9540 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9541 | intval = (int)POPINT(ss,ix); | |
9542 | TOPINT(nss,ix) = intval; | |
9543 | break; | |
9544 | case SAVEt_LONG: /* long reference */ | |
9545 | ptr = POPPTR(ss,ix); | |
9546 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9547 | longval = (long)POPLONG(ss,ix); | |
9548 | TOPLONG(nss,ix) = longval; | |
9549 | break; | |
9550 | case SAVEt_I32: /* I32 reference */ | |
9551 | case SAVEt_I16: /* I16 reference */ | |
9552 | case SAVEt_I8: /* I8 reference */ | |
9553 | ptr = POPPTR(ss,ix); | |
9554 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9555 | i = POPINT(ss,ix); | |
9556 | TOPINT(nss,ix) = i; | |
9557 | break; | |
9558 | case SAVEt_IV: /* IV reference */ | |
9559 | ptr = POPPTR(ss,ix); | |
9560 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9561 | iv = POPIV(ss,ix); | |
9562 | TOPIV(nss,ix) = iv; | |
9563 | break; | |
9564 | case SAVEt_SPTR: /* SV* reference */ | |
9565 | ptr = POPPTR(ss,ix); | |
9566 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9567 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9568 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
9569 | break; |
9570 | case SAVEt_VPTR: /* random* reference */ | |
9571 | ptr = POPPTR(ss,ix); | |
9572 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9573 | ptr = POPPTR(ss,ix); | |
9574 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9575 | break; | |
9576 | case SAVEt_PPTR: /* char* reference */ | |
9577 | ptr = POPPTR(ss,ix); | |
9578 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9579 | c = (char*)POPPTR(ss,ix); | |
9580 | TOPPTR(nss,ix) = pv_dup(c); | |
9581 | break; | |
9582 | case SAVEt_HPTR: /* HV* reference */ | |
9583 | ptr = POPPTR(ss,ix); | |
9584 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9585 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9586 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
9587 | break; |
9588 | case SAVEt_APTR: /* AV* reference */ | |
9589 | ptr = POPPTR(ss,ix); | |
9590 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9591 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9592 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
9593 | break; |
9594 | case SAVEt_NSTAB: | |
9595 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 9596 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9597 | break; |
9598 | case SAVEt_GP: /* scalar reference */ | |
9599 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 9600 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
9601 | (void)GpREFCNT_inc(gp); |
9602 | gv = (GV*)POPPTR(ss,ix); | |
2ed3c8fc | 9603 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 GS |
9604 | c = (char*)POPPTR(ss,ix); |
9605 | TOPPTR(nss,ix) = pv_dup(c); | |
9606 | iv = POPIV(ss,ix); | |
9607 | TOPIV(nss,ix) = iv; | |
9608 | iv = POPIV(ss,ix); | |
9609 | TOPIV(nss,ix) = iv; | |
9610 | break; | |
9611 | case SAVEt_FREESV: | |
26d9b02f | 9612 | case SAVEt_MORTALIZESV: |
1d7c1841 | 9613 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9614 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9615 | break; |
9616 | case SAVEt_FREEOP: | |
9617 | ptr = POPPTR(ss,ix); | |
9618 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
9619 | /* these are assumed to be refcounted properly */ | |
9620 | switch (((OP*)ptr)->op_type) { | |
9621 | case OP_LEAVESUB: | |
9622 | case OP_LEAVESUBLV: | |
9623 | case OP_LEAVEEVAL: | |
9624 | case OP_LEAVE: | |
9625 | case OP_SCOPE: | |
9626 | case OP_LEAVEWRITE: | |
e977893f GS |
9627 | TOPPTR(nss,ix) = ptr; |
9628 | o = (OP*)ptr; | |
9629 | OpREFCNT_inc(o); | |
1d7c1841 GS |
9630 | break; |
9631 | default: | |
9632 | TOPPTR(nss,ix) = Nullop; | |
9633 | break; | |
9634 | } | |
9635 | } | |
9636 | else | |
9637 | TOPPTR(nss,ix) = Nullop; | |
9638 | break; | |
9639 | case SAVEt_FREEPV: | |
9640 | c = (char*)POPPTR(ss,ix); | |
9641 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9642 | break; | |
9643 | case SAVEt_CLEARSV: | |
9644 | longval = POPLONG(ss,ix); | |
9645 | TOPLONG(nss,ix) = longval; | |
9646 | break; | |
9647 | case SAVEt_DELETE: | |
9648 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9649 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9650 | c = (char*)POPPTR(ss,ix); |
9651 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9652 | i = POPINT(ss,ix); | |
9653 | TOPINT(nss,ix) = i; | |
9654 | break; | |
9655 | case SAVEt_DESTRUCTOR: | |
9656 | ptr = POPPTR(ss,ix); | |
9657 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9658 | dptr = POPDPTR(ss,ix); | |
ef75a179 | 9659 | TOPDPTR(nss,ix) = (void (*)(void*))any_dup((void *)dptr, proto_perl); |
1d7c1841 GS |
9660 | break; |
9661 | case SAVEt_DESTRUCTOR_X: | |
9662 | ptr = POPPTR(ss,ix); | |
9663 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9664 | dxptr = POPDXPTR(ss,ix); | |
acfe0abc | 9665 | TOPDXPTR(nss,ix) = (void (*)(pTHX_ void*))any_dup((void *)dxptr, proto_perl); |
1d7c1841 GS |
9666 | break; |
9667 | case SAVEt_REGCONTEXT: | |
9668 | case SAVEt_ALLOC: | |
9669 | i = POPINT(ss,ix); | |
9670 | TOPINT(nss,ix) = i; | |
9671 | ix -= i; | |
9672 | break; | |
9673 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
9674 | i = POPINT(ss,ix); | |
9675 | TOPINT(nss,ix) = i; | |
9676 | break; | |
9677 | case SAVEt_AELEM: /* array element */ | |
9678 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9679 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9680 | i = POPINT(ss,ix); |
9681 | TOPINT(nss,ix) = i; | |
9682 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9683 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
9684 | break; |
9685 | case SAVEt_HELEM: /* hash element */ | |
9686 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9687 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9688 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9689 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9690 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 9691 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9692 | break; |
9693 | case SAVEt_OP: | |
9694 | ptr = POPPTR(ss,ix); | |
9695 | TOPPTR(nss,ix) = ptr; | |
9696 | break; | |
9697 | case SAVEt_HINTS: | |
9698 | i = POPINT(ss,ix); | |
9699 | TOPINT(nss,ix) = i; | |
9700 | break; | |
c4410b1b GS |
9701 | case SAVEt_COMPPAD: |
9702 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9703 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 9704 | break; |
c3564e5c GS |
9705 | case SAVEt_PADSV: |
9706 | longval = (long)POPLONG(ss,ix); | |
9707 | TOPLONG(nss,ix) = longval; | |
9708 | ptr = POPPTR(ss,ix); | |
9709 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9710 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9711 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 9712 | break; |
1d7c1841 GS |
9713 | default: |
9714 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
9715 | } | |
9716 | } | |
9717 | ||
9718 | return nss; | |
9719 | } | |
9720 | ||
645c22ef DM |
9721 | /* |
9722 | =for apidoc perl_clone | |
9723 | ||
9724 | Create and return a new interpreter by cloning the current one. | |
9725 | ||
9726 | =cut | |
9727 | */ | |
9728 | ||
9729 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
3fc56081 NK |
9730 | EXTERN_C PerlInterpreter * |
9731 | perl_clone_host(PerlInterpreter* proto_perl, UV flags); | |
645c22ef | 9732 | |
1d7c1841 GS |
9733 | PerlInterpreter * |
9734 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
9735 | { | |
1d7c1841 | 9736 | #ifdef PERL_IMPLICIT_SYS |
c43294b8 AB |
9737 | |
9738 | /* perlhost.h so we need to call into it | |
9739 | to clone the host, CPerlHost should have a c interface, sky */ | |
9740 | ||
9741 | if (flags & CLONEf_CLONE_HOST) { | |
9742 | return perl_clone_host(proto_perl,flags); | |
9743 | } | |
9744 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
9745 | proto_perl->IMem, |
9746 | proto_perl->IMemShared, | |
9747 | proto_perl->IMemParse, | |
9748 | proto_perl->IEnv, | |
9749 | proto_perl->IStdIO, | |
9750 | proto_perl->ILIO, | |
9751 | proto_perl->IDir, | |
9752 | proto_perl->ISock, | |
9753 | proto_perl->IProc); | |
9754 | } | |
9755 | ||
9756 | PerlInterpreter * | |
9757 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
9758 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
9759 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
9760 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
9761 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
9762 | struct IPerlProc* ipP) | |
9763 | { | |
9764 | /* XXX many of the string copies here can be optimized if they're | |
9765 | * constants; they need to be allocated as common memory and just | |
9766 | * their pointers copied. */ | |
9767 | ||
9768 | IV i; | |
64aa0685 GS |
9769 | CLONE_PARAMS clone_params; |
9770 | CLONE_PARAMS* param = &clone_params; | |
d2d73c3e | 9771 | |
1d7c1841 | 9772 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
ba869deb | 9773 | PERL_SET_THX(my_perl); |
1d7c1841 | 9774 | |
acfe0abc | 9775 | # ifdef DEBUGGING |
a4530404 | 9776 | Poison(my_perl, 1, PerlInterpreter); |
1d7c1841 GS |
9777 | PL_markstack = 0; |
9778 | PL_scopestack = 0; | |
9779 | PL_savestack = 0; | |
9780 | PL_retstack = 0; | |
66fe0623 | 9781 | PL_sig_pending = 0; |
25596c82 | 9782 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
acfe0abc | 9783 | # else /* !DEBUGGING */ |
1d7c1841 | 9784 | Zero(my_perl, 1, PerlInterpreter); |
acfe0abc | 9785 | # endif /* DEBUGGING */ |
1d7c1841 GS |
9786 | |
9787 | /* host pointers */ | |
9788 | PL_Mem = ipM; | |
9789 | PL_MemShared = ipMS; | |
9790 | PL_MemParse = ipMP; | |
9791 | PL_Env = ipE; | |
9792 | PL_StdIO = ipStd; | |
9793 | PL_LIO = ipLIO; | |
9794 | PL_Dir = ipD; | |
9795 | PL_Sock = ipS; | |
9796 | PL_Proc = ipP; | |
1d7c1841 GS |
9797 | #else /* !PERL_IMPLICIT_SYS */ |
9798 | IV i; | |
64aa0685 GS |
9799 | CLONE_PARAMS clone_params; |
9800 | CLONE_PARAMS* param = &clone_params; | |
1d7c1841 | 9801 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 9802 | PERL_SET_THX(my_perl); |
1d7c1841 | 9803 | |
d2d73c3e AB |
9804 | |
9805 | ||
1d7c1841 | 9806 | # ifdef DEBUGGING |
a4530404 | 9807 | Poison(my_perl, 1, PerlInterpreter); |
1d7c1841 GS |
9808 | PL_markstack = 0; |
9809 | PL_scopestack = 0; | |
9810 | PL_savestack = 0; | |
9811 | PL_retstack = 0; | |
66fe0623 | 9812 | PL_sig_pending = 0; |
25596c82 | 9813 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
1d7c1841 GS |
9814 | # else /* !DEBUGGING */ |
9815 | Zero(my_perl, 1, PerlInterpreter); | |
9816 | # endif /* DEBUGGING */ | |
9817 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 9818 | param->flags = flags; |
59b40662 | 9819 | param->proto_perl = proto_perl; |
1d7c1841 GS |
9820 | |
9821 | /* arena roots */ | |
9822 | PL_xiv_arenaroot = NULL; | |
9823 | PL_xiv_root = NULL; | |
612f20c3 | 9824 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 9825 | PL_xnv_root = NULL; |
612f20c3 | 9826 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 9827 | PL_xrv_root = NULL; |
612f20c3 | 9828 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 9829 | PL_xpv_root = NULL; |
612f20c3 | 9830 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 9831 | PL_xpviv_root = NULL; |
612f20c3 | 9832 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 9833 | PL_xpvnv_root = NULL; |
612f20c3 | 9834 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 9835 | PL_xpvcv_root = NULL; |
612f20c3 | 9836 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 9837 | PL_xpvav_root = NULL; |
612f20c3 | 9838 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 9839 | PL_xpvhv_root = NULL; |
612f20c3 | 9840 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 9841 | PL_xpvmg_root = NULL; |
612f20c3 | 9842 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 9843 | PL_xpvlv_root = NULL; |
612f20c3 | 9844 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 9845 | PL_xpvbm_root = NULL; |
612f20c3 | 9846 | PL_he_arenaroot = NULL; |
1d7c1841 GS |
9847 | PL_he_root = NULL; |
9848 | PL_nice_chunk = NULL; | |
9849 | PL_nice_chunk_size = 0; | |
9850 | PL_sv_count = 0; | |
9851 | PL_sv_objcount = 0; | |
9852 | PL_sv_root = Nullsv; | |
9853 | PL_sv_arenaroot = Nullsv; | |
9854 | ||
9855 | PL_debug = proto_perl->Idebug; | |
9856 | ||
e5dd39fc | 9857 | #ifdef USE_REENTRANT_API |
59bd0823 | 9858 | Perl_reentrant_init(aTHX); |
e5dd39fc AB |
9859 | #endif |
9860 | ||
1d7c1841 GS |
9861 | /* create SV map for pointer relocation */ |
9862 | PL_ptr_table = ptr_table_new(); | |
9863 | ||
9864 | /* initialize these special pointers as early as possible */ | |
9865 | SvANY(&PL_sv_undef) = NULL; | |
9866 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
9867 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
9868 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
9869 | ||
1d7c1841 | 9870 | SvANY(&PL_sv_no) = new_XPVNV(); |
1d7c1841 GS |
9871 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
9872 | SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9873 | SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0); | |
9874 | SvCUR(&PL_sv_no) = 0; | |
9875 | SvLEN(&PL_sv_no) = 1; | |
9876 | SvNVX(&PL_sv_no) = 0; | |
9877 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); | |
9878 | ||
1d7c1841 | 9879 | SvANY(&PL_sv_yes) = new_XPVNV(); |
1d7c1841 GS |
9880 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
9881 | SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9882 | SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1); | |
9883 | SvCUR(&PL_sv_yes) = 1; | |
9884 | SvLEN(&PL_sv_yes) = 2; | |
9885 | SvNVX(&PL_sv_yes) = 1; | |
9886 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); | |
9887 | ||
05ec9bb3 | 9888 | /* create (a non-shared!) shared string table */ |
1d7c1841 GS |
9889 | PL_strtab = newHV(); |
9890 | HvSHAREKEYS_off(PL_strtab); | |
9891 | hv_ksplit(PL_strtab, 512); | |
9892 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); | |
9893 | ||
05ec9bb3 NIS |
9894 | PL_compiling = proto_perl->Icompiling; |
9895 | ||
9896 | /* These two PVs will be free'd special way so must set them same way op.c does */ | |
9897 | PL_compiling.cop_stashpv = savesharedpv(PL_compiling.cop_stashpv); | |
9898 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_stashpv, PL_compiling.cop_stashpv); | |
9899 | ||
9900 | PL_compiling.cop_file = savesharedpv(PL_compiling.cop_file); | |
9901 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_file, PL_compiling.cop_file); | |
9902 | ||
1d7c1841 GS |
9903 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); |
9904 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 9905 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 9906 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 9907 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
9908 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
9909 | ||
9910 | /* pseudo environmental stuff */ | |
9911 | PL_origargc = proto_perl->Iorigargc; | |
9912 | i = PL_origargc; | |
9913 | New(0, PL_origargv, i+1, char*); | |
9914 | PL_origargv[i] = '\0'; | |
9915 | while (i-- > 0) { | |
9916 | PL_origargv[i] = SAVEPV(proto_perl->Iorigargv[i]); | |
9917 | } | |
d2d73c3e | 9918 | |
d2d73c3e AB |
9919 | param->stashes = newAV(); /* Setup array of objects to call clone on */ |
9920 | ||
a1ea730d | 9921 | #ifdef PERLIO_LAYERS |
3a1ee7e8 NIS |
9922 | /* Clone PerlIO tables as soon as we can handle general xx_dup() */ |
9923 | PerlIO_clone(aTHX_ proto_perl, param); | |
a1ea730d | 9924 | #endif |
d2d73c3e AB |
9925 | |
9926 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
9927 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
9928 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 9929 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
9930 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
9931 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
9932 | |
9933 | /* switches */ | |
9934 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 9935 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
9936 | PL_localpatches = proto_perl->Ilocalpatches; |
9937 | PL_splitstr = proto_perl->Isplitstr; | |
9938 | PL_preprocess = proto_perl->Ipreprocess; | |
9939 | PL_minus_n = proto_perl->Iminus_n; | |
9940 | PL_minus_p = proto_perl->Iminus_p; | |
9941 | PL_minus_l = proto_perl->Iminus_l; | |
9942 | PL_minus_a = proto_perl->Iminus_a; | |
9943 | PL_minus_F = proto_perl->Iminus_F; | |
9944 | PL_doswitches = proto_perl->Idoswitches; | |
9945 | PL_dowarn = proto_perl->Idowarn; | |
9946 | PL_doextract = proto_perl->Idoextract; | |
9947 | PL_sawampersand = proto_perl->Isawampersand; | |
9948 | PL_unsafe = proto_perl->Iunsafe; | |
9949 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 9950 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
9951 | PL_perldb = proto_perl->Iperldb; |
9952 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
1cbb0781 | 9953 | PL_exit_flags = proto_perl->Iexit_flags; |
1d7c1841 GS |
9954 | |
9955 | /* magical thingies */ | |
9956 | /* XXX time(&PL_basetime) when asked for? */ | |
9957 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 9958 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
9959 | |
9960 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
9961 | PL_multiline = proto_perl->Imultiline; | |
9962 | PL_statusvalue = proto_perl->Istatusvalue; | |
9963 | #ifdef VMS | |
9964 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
9965 | #endif | |
0a378802 | 9966 | PL_encoding = sv_dup(proto_perl->Iencoding, param); |
1d7c1841 | 9967 | |
4a4c6fe3 | 9968 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
9969 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
9970 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
4a4c6fe3 | 9971 | |
d2f185dc AMS |
9972 | /* Clone the regex array */ |
9973 | PL_regex_padav = newAV(); | |
9974 | { | |
9975 | I32 len = av_len((AV*)proto_perl->Iregex_padav); | |
9976 | SV** regexen = AvARRAY((AV*)proto_perl->Iregex_padav); | |
0f95fc41 AB |
9977 | av_push(PL_regex_padav, |
9978 | sv_dup_inc(regexen[0],param)); | |
9979 | for(i = 1; i <= len; i++) { | |
9980 | if(SvREPADTMP(regexen[i])) { | |
9981 | av_push(PL_regex_padav, sv_dup_inc(regexen[i], param)); | |
8cf8f3d1 | 9982 | } else { |
0f95fc41 AB |
9983 | av_push(PL_regex_padav, |
9984 | SvREFCNT_inc( | |
8cf8f3d1 | 9985 | newSViv(PTR2IV(re_dup(INT2PTR(REGEXP *, |
cbfa9890 | 9986 | SvIVX(regexen[i])), param))) |
0f95fc41 AB |
9987 | )); |
9988 | } | |
d2f185dc AMS |
9989 | } |
9990 | } | |
9991 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 9992 | |
1d7c1841 | 9993 | /* shortcuts to various I/O objects */ |
d2d73c3e AB |
9994 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
9995 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
9996 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
9997 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
9998 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
9999 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
10000 | |
10001 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 10002 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
10003 | |
10004 | /* shortcuts to misc objects */ | |
d2d73c3e | 10005 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
10006 | |
10007 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
10008 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
10009 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
10010 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
10011 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
10012 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
10013 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
10014 | PL_lineary = av_dup(proto_perl->Ilineary, param); | |
10015 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
10016 | |
10017 | /* symbol tables */ | |
d2d73c3e AB |
10018 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
10019 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
10020 | PL_nullstash = hv_dup(proto_perl->Inullstash, param); | |
10021 | PL_debstash = hv_dup(proto_perl->Idebstash, param); | |
10022 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
10023 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
10024 | ||
10025 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
ee1c5a4e | 10026 | PL_beginav_save = av_dup_inc(proto_perl->Ibeginav_save, param); |
d2d73c3e AB |
10027 | PL_endav = av_dup_inc(proto_perl->Iendav, param); |
10028 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
10029 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
10030 | |
10031 | PL_sub_generation = proto_perl->Isub_generation; | |
10032 | ||
10033 | /* funky return mechanisms */ | |
10034 | PL_forkprocess = proto_perl->Iforkprocess; | |
10035 | ||
10036 | /* subprocess state */ | |
d2d73c3e | 10037 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
10038 | |
10039 | /* internal state */ | |
10040 | PL_tainting = proto_perl->Itainting; | |
10041 | PL_maxo = proto_perl->Imaxo; | |
10042 | if (proto_perl->Iop_mask) | |
10043 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
10044 | else | |
10045 | PL_op_mask = Nullch; | |
10046 | ||
10047 | /* current interpreter roots */ | |
d2d73c3e | 10048 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
10049 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
10050 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 10051 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
10052 | PL_eval_start = proto_perl->Ieval_start; |
10053 | ||
10054 | /* runtime control stuff */ | |
10055 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
10056 | PL_copline = proto_perl->Icopline; | |
10057 | ||
10058 | PL_filemode = proto_perl->Ifilemode; | |
10059 | PL_lastfd = proto_perl->Ilastfd; | |
10060 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
10061 | PL_Argv = NULL; | |
10062 | PL_Cmd = Nullch; | |
10063 | PL_gensym = proto_perl->Igensym; | |
10064 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 10065 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
10066 | PL_laststatval = proto_perl->Ilaststatval; |
10067 | PL_laststype = proto_perl->Ilaststype; | |
10068 | PL_mess_sv = Nullsv; | |
10069 | ||
d2d73c3e | 10070 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
10071 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
10072 | ||
10073 | /* interpreter atexit processing */ | |
10074 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
10075 | if (PL_exitlistlen) { | |
10076 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
10077 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
10078 | } | |
10079 | else | |
10080 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 10081 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
19e8ce8e AB |
10082 | PL_custom_op_names = hv_dup_inc(proto_perl->Icustom_op_names,param); |
10083 | PL_custom_op_descs = hv_dup_inc(proto_perl->Icustom_op_descs,param); | |
1d7c1841 GS |
10084 | |
10085 | PL_profiledata = NULL; | |
a8fc9800 | 10086 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<', param); |
1d7c1841 | 10087 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
d2d73c3e | 10088 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 10089 | |
d2d73c3e AB |
10090 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
10091 | PL_comppad = av_dup(proto_perl->Icomppad, param); | |
10092 | PL_comppad_name = av_dup(proto_perl->Icomppad_name, param); | |
1d7c1841 GS |
10093 | PL_comppad_name_fill = proto_perl->Icomppad_name_fill; |
10094 | PL_comppad_name_floor = proto_perl->Icomppad_name_floor; | |
10095 | PL_curpad = (SV**)ptr_table_fetch(PL_ptr_table, | |
10096 | proto_perl->Tcurpad); | |
10097 | ||
10098 | #ifdef HAVE_INTERP_INTERN | |
10099 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
10100 | #endif | |
10101 | ||
10102 | /* more statics moved here */ | |
10103 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 10104 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
10105 | |
10106 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
10107 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
10108 | ||
10109 | PL_uid = proto_perl->Iuid; | |
10110 | PL_euid = proto_perl->Ieuid; | |
10111 | PL_gid = proto_perl->Igid; | |
10112 | PL_egid = proto_perl->Iegid; | |
10113 | PL_nomemok = proto_perl->Inomemok; | |
10114 | PL_an = proto_perl->Ian; | |
10115 | PL_cop_seqmax = proto_perl->Icop_seqmax; | |
10116 | PL_op_seqmax = proto_perl->Iop_seqmax; | |
10117 | PL_evalseq = proto_perl->Ievalseq; | |
10118 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
10119 | PL_origalen = proto_perl->Iorigalen; | |
10120 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
10121 | PL_osname = SAVEPV(proto_perl->Iosname); | |
0bb09c15 | 10122 | PL_sh_path = proto_perl->Ish_path; /* XXX never deallocated */ |
1d7c1841 GS |
10123 | PL_sighandlerp = proto_perl->Isighandlerp; |
10124 | ||
10125 | ||
10126 | PL_runops = proto_perl->Irunops; | |
10127 | ||
10128 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
10129 | ||
10130 | #ifdef CSH | |
10131 | PL_cshlen = proto_perl->Icshlen; | |
74f1b2b8 | 10132 | PL_cshname = proto_perl->Icshname; /* XXX never deallocated */ |
1d7c1841 GS |
10133 | #endif |
10134 | ||
10135 | PL_lex_state = proto_perl->Ilex_state; | |
10136 | PL_lex_defer = proto_perl->Ilex_defer; | |
10137 | PL_lex_expect = proto_perl->Ilex_expect; | |
10138 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
10139 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
10140 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
10141 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
10142 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
10143 | PL_lex_op = proto_perl->Ilex_op; |
10144 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
10145 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
10146 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
10147 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
10148 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
10149 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
10150 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
10151 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
10152 | ||
10153 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
10154 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
10155 | PL_nexttoke = proto_perl->Inexttoke; | |
10156 | ||
1d773130 TB |
10157 | /* XXX This is probably masking the deeper issue of why |
10158 | * SvANY(proto_perl->Ilinestr) can be NULL at this point. For test case: | |
10159 | * http://archive.develooper.com/perl5-porters%40perl.org/msg83298.html | |
10160 | * (A little debugging with a watchpoint on it may help.) | |
10161 | */ | |
389edf32 TB |
10162 | if (SvANY(proto_perl->Ilinestr)) { |
10163 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); | |
10164 | i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); | |
10165 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10166 | i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); | |
10167 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10168 | i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); | |
10169 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10170 | i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); | |
10171 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10172 | } | |
10173 | else { | |
10174 | PL_linestr = NEWSV(65,79); | |
10175 | sv_upgrade(PL_linestr,SVt_PVIV); | |
10176 | sv_setpvn(PL_linestr,"",0); | |
10177 | PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
10178 | } | |
1d7c1841 | 10179 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
1d7c1841 GS |
10180 | PL_pending_ident = proto_perl->Ipending_ident; |
10181 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
10182 | ||
10183 | PL_expect = proto_perl->Iexpect; | |
10184 | ||
10185 | PL_multi_start = proto_perl->Imulti_start; | |
10186 | PL_multi_end = proto_perl->Imulti_end; | |
10187 | PL_multi_open = proto_perl->Imulti_open; | |
10188 | PL_multi_close = proto_perl->Imulti_close; | |
10189 | ||
10190 | PL_error_count = proto_perl->Ierror_count; | |
10191 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 10192 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 GS |
10193 | |
10194 | PL_min_intro_pending = proto_perl->Imin_intro_pending; | |
10195 | PL_max_intro_pending = proto_perl->Imax_intro_pending; | |
10196 | PL_padix = proto_perl->Ipadix; | |
10197 | PL_padix_floor = proto_perl->Ipadix_floor; | |
10198 | PL_pad_reset_pending = proto_perl->Ipad_reset_pending; | |
10199 | ||
1d773130 | 10200 | /* XXX See comment on SvANY(proto_perl->Ilinestr) above */ |
389edf32 TB |
10201 | if (SvANY(proto_perl->Ilinestr)) { |
10202 | i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); | |
10203 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10204 | i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); | |
10205 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10206 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
10207 | } | |
10208 | else { | |
10209 | PL_last_uni = SvPVX(PL_linestr); | |
10210 | PL_last_lop = SvPVX(PL_linestr); | |
10211 | PL_last_lop_op = 0; | |
10212 | } | |
1d7c1841 | 10213 | PL_in_my = proto_perl->Iin_my; |
d2d73c3e | 10214 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
10215 | #ifdef FCRYPT |
10216 | PL_cryptseen = proto_perl->Icryptseen; | |
10217 | #endif | |
10218 | ||
10219 | PL_hints = proto_perl->Ihints; | |
10220 | ||
10221 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
10222 | ||
10223 | #ifdef USE_LOCALE_COLLATE | |
10224 | PL_collation_ix = proto_perl->Icollation_ix; | |
10225 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
10226 | PL_collation_standard = proto_perl->Icollation_standard; | |
10227 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
10228 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
10229 | #endif /* USE_LOCALE_COLLATE */ | |
10230 | ||
10231 | #ifdef USE_LOCALE_NUMERIC | |
10232 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
10233 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
10234 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 10235 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
10236 | #endif /* !USE_LOCALE_NUMERIC */ |
10237 | ||
10238 | /* utf8 character classes */ | |
d2d73c3e AB |
10239 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
10240 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
10241 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
10242 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
10243 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
10244 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
10245 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
10246 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
10247 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
10248 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
10249 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
10250 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
10251 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
10252 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
10253 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
10254 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
10255 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
b4e400f9 | 10256 | PL_utf8_tofold = sv_dup_inc(proto_perl->Iutf8_tofold, param); |
82686b01 JH |
10257 | PL_utf8_idstart = sv_dup_inc(proto_perl->Iutf8_idstart, param); |
10258 | PL_utf8_idcont = sv_dup_inc(proto_perl->Iutf8_idcont, param); | |
1d7c1841 GS |
10259 | |
10260 | /* swatch cache */ | |
10261 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
10262 | PL_last_swash_klen = 0; | |
10263 | PL_last_swash_key[0]= '\0'; | |
10264 | PL_last_swash_tmps = (U8*)NULL; | |
10265 | PL_last_swash_slen = 0; | |
10266 | ||
10267 | /* perly.c globals */ | |
10268 | PL_yydebug = proto_perl->Iyydebug; | |
10269 | PL_yynerrs = proto_perl->Iyynerrs; | |
10270 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
10271 | PL_yychar = proto_perl->Iyychar; | |
10272 | PL_yyval = proto_perl->Iyyval; | |
10273 | PL_yylval = proto_perl->Iyylval; | |
10274 | ||
10275 | PL_glob_index = proto_perl->Iglob_index; | |
10276 | PL_srand_called = proto_perl->Isrand_called; | |
10277 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
10278 | PL_bitcount = Nullch; /* reinits on demand */ | |
10279 | ||
66fe0623 NIS |
10280 | if (proto_perl->Ipsig_pend) { |
10281 | Newz(0, PL_psig_pend, SIG_SIZE, int); | |
9dd79c3f | 10282 | } |
66fe0623 NIS |
10283 | else { |
10284 | PL_psig_pend = (int*)NULL; | |
10285 | } | |
10286 | ||
1d7c1841 | 10287 | if (proto_perl->Ipsig_ptr) { |
76d3c696 JH |
10288 | Newz(0, PL_psig_ptr, SIG_SIZE, SV*); |
10289 | Newz(0, PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 10290 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
10291 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
10292 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
10293 | } |
10294 | } | |
10295 | else { | |
10296 | PL_psig_ptr = (SV**)NULL; | |
10297 | PL_psig_name = (SV**)NULL; | |
10298 | } | |
10299 | ||
10300 | /* thrdvar.h stuff */ | |
10301 | ||
a0739874 | 10302 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
10303 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
10304 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
10305 | PL_tmps_max = proto_perl->Ttmps_max; | |
10306 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
10307 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
10308 | i = 0; | |
10309 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 10310 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
10311 | ++i; |
10312 | } | |
10313 | ||
10314 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
10315 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
10316 | Newz(54, PL_markstack, i, I32); | |
10317 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
10318 | - proto_perl->Tmarkstack); | |
10319 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
10320 | - proto_perl->Tmarkstack); | |
10321 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
10322 | PL_markstack_ptr - PL_markstack + 1, I32); | |
10323 | ||
10324 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
10325 | * NOTE: unlike the others! */ | |
10326 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
10327 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
10328 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
10329 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
10330 | ||
10331 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
10332 | * NOTE: unlike the others! */ | |
10333 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
10334 | PL_retstack_max = proto_perl->Tretstack_max; | |
10335 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
ce0a1ae0 | 10336 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, OP*); |
1d7c1841 GS |
10337 | |
10338 | /* NOTE: si_dup() looks at PL_markstack */ | |
d2d73c3e | 10339 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
10340 | |
10341 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
10342 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
10343 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
10344 | |
10345 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
10346 | PL_stack_base = AvARRAY(PL_curstack); | |
10347 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
10348 | - proto_perl->Tstack_base); | |
10349 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
10350 | ||
10351 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
10352 | * NOTE: unlike the others! */ | |
10353 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
10354 | PL_savestack_max = proto_perl->Tsavestack_max; | |
10355 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
d2d73c3e | 10356 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
10357 | } |
10358 | else { | |
10359 | init_stacks(); | |
985e7056 | 10360 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
10361 | } |
10362 | ||
10363 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
10364 | PL_top_env = &PL_start_env; | |
10365 | ||
10366 | PL_op = proto_perl->Top; | |
10367 | ||
10368 | PL_Sv = Nullsv; | |
10369 | PL_Xpv = (XPV*)NULL; | |
10370 | PL_na = proto_perl->Tna; | |
10371 | ||
10372 | PL_statbuf = proto_perl->Tstatbuf; | |
10373 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
10374 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
10375 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
10376 | #ifdef HAS_TIMES |
10377 | PL_timesbuf = proto_perl->Ttimesbuf; | |
10378 | #endif | |
10379 | ||
10380 | PL_tainted = proto_perl->Ttainted; | |
10381 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
10382 | PL_rs = sv_dup_inc(proto_perl->Trs, param); |
10383 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
10384 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
10385 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 10386 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
10387 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
10388 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
10389 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
10390 | |
10391 | PL_restartop = proto_perl->Trestartop; | |
10392 | PL_in_eval = proto_perl->Tin_eval; | |
10393 | PL_delaymagic = proto_perl->Tdelaymagic; | |
10394 | PL_dirty = proto_perl->Tdirty; | |
10395 | PL_localizing = proto_perl->Tlocalizing; | |
10396 | ||
14dd3ad8 | 10397 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 10398 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 10399 | #endif |
d2d73c3e | 10400 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
1d7c1841 GS |
10401 | PL_av_fetch_sv = Nullsv; |
10402 | PL_hv_fetch_sv = Nullsv; | |
10403 | Zero(&PL_hv_fetch_ent_mh, 1, HE); /* XXX */ | |
10404 | PL_modcount = proto_perl->Tmodcount; | |
10405 | PL_lastgotoprobe = Nullop; | |
10406 | PL_dumpindent = proto_perl->Tdumpindent; | |
10407 | ||
10408 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
10409 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
10410 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
10411 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
10412 | PL_sortcxix = proto_perl->Tsortcxix; |
10413 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
10414 | PL_efloatsize = 0; /* reinits on demand */ | |
10415 | ||
10416 | /* regex stuff */ | |
10417 | ||
10418 | PL_screamfirst = NULL; | |
10419 | PL_screamnext = NULL; | |
10420 | PL_maxscream = -1; /* reinits on demand */ | |
10421 | PL_lastscream = Nullsv; | |
10422 | ||
10423 | PL_watchaddr = NULL; | |
10424 | PL_watchok = Nullch; | |
10425 | ||
10426 | PL_regdummy = proto_perl->Tregdummy; | |
10427 | PL_regcomp_parse = Nullch; | |
10428 | PL_regxend = Nullch; | |
10429 | PL_regcode = (regnode*)NULL; | |
10430 | PL_regnaughty = 0; | |
10431 | PL_regsawback = 0; | |
10432 | PL_regprecomp = Nullch; | |
10433 | PL_regnpar = 0; | |
10434 | PL_regsize = 0; | |
10435 | PL_regflags = 0; | |
10436 | PL_regseen = 0; | |
10437 | PL_seen_zerolen = 0; | |
10438 | PL_seen_evals = 0; | |
10439 | PL_regcomp_rx = (regexp*)NULL; | |
10440 | PL_extralen = 0; | |
10441 | PL_colorset = 0; /* reinits PL_colors[] */ | |
10442 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
10443 | PL_reg_whilem_seen = 0; | |
10444 | PL_reginput = Nullch; | |
10445 | PL_regbol = Nullch; | |
10446 | PL_regeol = Nullch; | |
10447 | PL_regstartp = (I32*)NULL; | |
10448 | PL_regendp = (I32*)NULL; | |
10449 | PL_reglastparen = (U32*)NULL; | |
10450 | PL_regtill = Nullch; | |
1d7c1841 GS |
10451 | PL_reg_start_tmp = (char**)NULL; |
10452 | PL_reg_start_tmpl = 0; | |
10453 | PL_regdata = (struct reg_data*)NULL; | |
10454 | PL_bostr = Nullch; | |
10455 | PL_reg_flags = 0; | |
10456 | PL_reg_eval_set = 0; | |
10457 | PL_regnarrate = 0; | |
10458 | PL_regprogram = (regnode*)NULL; | |
10459 | PL_regindent = 0; | |
10460 | PL_regcc = (CURCUR*)NULL; | |
10461 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
10462 | PL_reg_re = (regexp*)NULL; | |
10463 | PL_reg_ganch = Nullch; | |
10464 | PL_reg_sv = Nullsv; | |
53c4c00c | 10465 | PL_reg_match_utf8 = FALSE; |
1d7c1841 GS |
10466 | PL_reg_magic = (MAGIC*)NULL; |
10467 | PL_reg_oldpos = 0; | |
10468 | PL_reg_oldcurpm = (PMOP*)NULL; | |
10469 | PL_reg_curpm = (PMOP*)NULL; | |
10470 | PL_reg_oldsaved = Nullch; | |
10471 | PL_reg_oldsavedlen = 0; | |
10472 | PL_reg_maxiter = 0; | |
10473 | PL_reg_leftiter = 0; | |
10474 | PL_reg_poscache = Nullch; | |
10475 | PL_reg_poscache_size= 0; | |
10476 | ||
10477 | /* RE engine - function pointers */ | |
10478 | PL_regcompp = proto_perl->Tregcompp; | |
10479 | PL_regexecp = proto_perl->Tregexecp; | |
10480 | PL_regint_start = proto_perl->Tregint_start; | |
10481 | PL_regint_string = proto_perl->Tregint_string; | |
10482 | PL_regfree = proto_perl->Tregfree; | |
10483 | ||
10484 | PL_reginterp_cnt = 0; | |
10485 | PL_reg_starttry = 0; | |
10486 | ||
a2efc822 SC |
10487 | /* Pluggable optimizer */ |
10488 | PL_peepp = proto_perl->Tpeepp; | |
10489 | ||
a0739874 DM |
10490 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
10491 | ptr_table_free(PL_ptr_table); | |
10492 | PL_ptr_table = NULL; | |
10493 | } | |
8cf8f3d1 | 10494 | |
f284b03f AMS |
10495 | /* Call the ->CLONE method, if it exists, for each of the stashes |
10496 | identified by sv_dup() above. | |
10497 | */ | |
d2d73c3e AB |
10498 | while(av_len(param->stashes) != -1) { |
10499 | HV* stash = (HV*) av_shift(param->stashes); | |
f284b03f AMS |
10500 | GV* cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); |
10501 | if (cloner && GvCV(cloner)) { | |
10502 | dSP; | |
10503 | ENTER; | |
10504 | SAVETMPS; | |
10505 | PUSHMARK(SP); | |
dc507217 | 10506 | XPUSHs(sv_2mortal(newSVpv(HvNAME(stash), 0))); |
f284b03f AMS |
10507 | PUTBACK; |
10508 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
10509 | FREETMPS; | |
10510 | LEAVE; | |
10511 | } | |
4a09accc | 10512 | } |
a0739874 | 10513 | |
dc507217 | 10514 | SvREFCNT_dec(param->stashes); |
dc507217 | 10515 | |
1d7c1841 | 10516 | return my_perl; |
1d7c1841 GS |
10517 | } |
10518 | ||
1d7c1841 | 10519 | #endif /* USE_ITHREADS */ |
a0ae6670 | 10520 | |
9f4817db | 10521 | /* |
ccfc67b7 JH |
10522 | =head1 Unicode Support |
10523 | ||
9f4817db JH |
10524 | =for apidoc sv_recode_to_utf8 |
10525 | ||
5d170f3a JH |
10526 | The encoding is assumed to be an Encode object, on entry the PV |
10527 | of the sv is assumed to be octets in that encoding, and the sv | |
10528 | will be converted into Unicode (and UTF-8). | |
9f4817db | 10529 | |
5d170f3a JH |
10530 | If the sv already is UTF-8 (or if it is not POK), or if the encoding |
10531 | is not a reference, nothing is done to the sv. If the encoding is not | |
1768d7eb JH |
10532 | an C<Encode::XS> Encoding object, bad things will happen. |
10533 | (See F<lib/encoding.pm> and L<Encode>). | |
9f4817db | 10534 | |
5d170f3a | 10535 | The PV of the sv is returned. |
9f4817db | 10536 | |
5d170f3a JH |
10537 | =cut */ |
10538 | ||
10539 | char * | |
10540 | Perl_sv_recode_to_utf8(pTHX_ SV *sv, SV *encoding) | |
10541 | { | |
f9893866 | 10542 | if (SvPOK(sv) && !DO_UTF8(sv) && SvROK(encoding)) { |
5d170f3a JH |
10543 | SV *uni; |
10544 | STRLEN len; | |
10545 | char *s; | |
10546 | dSP; | |
10547 | ENTER; | |
10548 | SAVETMPS; | |
10549 | PUSHMARK(sp); | |
10550 | EXTEND(SP, 3); | |
10551 | XPUSHs(encoding); | |
10552 | XPUSHs(sv); | |
f9893866 NIS |
10553 | /* |
10554 | NI-S 2002/07/09 | |
10555 | Passing sv_yes is wrong - it needs to be or'ed set of constants | |
10556 | for Encode::XS, while UTf-8 decode (currently) assumes a true value means | |
10557 | remove converted chars from source. | |
10558 | ||
10559 | Both will default the value - let them. | |
10560 | ||
5d170f3a | 10561 | XPUSHs(&PL_sv_yes); |
f9893866 | 10562 | */ |
5d170f3a JH |
10563 | PUTBACK; |
10564 | call_method("decode", G_SCALAR); | |
10565 | SPAGAIN; | |
10566 | uni = POPs; | |
10567 | PUTBACK; | |
3e169325 | 10568 | s = SvPV(uni, len); |
5d170f3a | 10569 | if (s != SvPVX(sv)) { |
13817fc8 | 10570 | SvGROW(sv, len + 1); |
5d170f3a JH |
10571 | Move(s, SvPVX(sv), len, char); |
10572 | SvCUR_set(sv, len); | |
13817fc8 | 10573 | SvPVX(sv)[len] = 0; |
5d170f3a JH |
10574 | } |
10575 | FREETMPS; | |
10576 | LEAVE; | |
10577 | SvUTF8_on(sv); | |
f9893866 NIS |
10578 | } |
10579 | return SvPVX(sv); | |
9f4817db JH |
10580 | } |
10581 | ||
68795e93 | 10582 | |
f9893866 | 10583 |