Commit | Line | Data |
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a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
bc89e66f | 3 | * Copyright (c) 1991-2001, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e | 8 | * "I wonder what the Entish is for 'yes' and 'no'," he thought. |
645c22ef DM |
9 | * |
10 | * | |
5e045b90 AMS |
11 | * This file contains the code that creates, manipulates and destroys |
12 | * scalar values (SVs). The other types (AV, HV, GV, etc.) reuse the | |
13 | * structure of an SV, so their creation and destruction is handled | |
14 | * here; higher-level functions are in av.c, hv.c, and so on. Opcode | |
15 | * level functions (eg. substr, split, join) for each of the types are | |
16 | * in the pp*.c files. | |
79072805 LW |
17 | */ |
18 | ||
19 | #include "EXTERN.h" | |
864dbfa3 | 20 | #define PERL_IN_SV_C |
79072805 | 21 | #include "perl.h" |
d2f185dc | 22 | #include "regcomp.h" |
79072805 | 23 | |
51371543 | 24 | #define FCALL *f |
6fc92669 | 25 | #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_force_normal(sv) |
2c5424a7 | 26 | |
645c22ef DM |
27 | |
28 | /* ============================================================================ | |
29 | ||
30 | =head1 Allocation and deallocation of SVs. | |
31 | ||
5e045b90 AMS |
32 | An SV (or AV, HV, etc.) is allocated in two parts: the head (struct sv, |
33 | av, hv...) contains type and reference count information, as well as a | |
34 | pointer to the body (struct xrv, xpv, xpviv...), which contains fields | |
35 | specific to each type. | |
36 | ||
37 | Normally, this allocation is done using arenas, which are approximately | |
38 | 1K chunks of memory parcelled up into N heads or bodies. The first slot | |
39 | in each arena is reserved, and is used to hold a link to the next arena. | |
40 | In the case of heads, the unused first slot also contains some flags and | |
41 | a note of the number of slots. Snaked through each arena chain is a | |
42 | linked list of free items; when this becomes empty, an extra arena is | |
43 | allocated and divided up into N items which are threaded into the free | |
44 | list. | |
645c22ef DM |
45 | |
46 | The following global variables are associated with arenas: | |
47 | ||
48 | PL_sv_arenaroot pointer to list of SV arenas | |
49 | PL_sv_root pointer to list of free SV structures | |
50 | ||
51 | PL_foo_arenaroot pointer to list of foo arenas, | |
52 | PL_foo_root pointer to list of free foo bodies | |
53 | ... for foo in xiv, xnv, xrv, xpv etc. | |
54 | ||
55 | Note that some of the larger and more rarely used body types (eg xpvio) | |
56 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
57 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
58 | with all items individually malloc()ed. In addition, a few SV heads are | |
59 | not allocated from an arena, but are instead directly created as static | |
60 | or auto variables, eg PL_sv_undef. | |
61 | ||
62 | The SV arena serves the secondary purpose of allowing still-live SVs | |
63 | to be located and destroyed during final cleanup. | |
64 | ||
65 | At the lowest level, the macros new_SV() and del_SV() grab and free | |
66 | an SV head. (If debugging with -DD, del_SV() calls the function S_del_sv() | |
67 | to return the SV to the free list with error checking.) new_SV() calls | |
68 | more_sv() / sv_add_arena() to add an extra arena if the free list is empty. | |
69 | SVs in the free list have their SvTYPE field set to all ones. | |
70 | ||
71 | Similarly, there are macros new_XIV()/del_XIV(), new_XNV()/del_XNV() etc | |
72 | that allocate and return individual body types. Normally these are mapped | |
ff276b08 RG |
73 | to the arena-manipulating functions new_xiv()/del_xiv() etc, but may be |
74 | instead mapped directly to malloc()/free() if PURIFY is defined. The | |
645c22ef DM |
75 | new/del functions remove from, or add to, the appropriate PL_foo_root |
76 | list, and call more_xiv() etc to add a new arena if the list is empty. | |
77 | ||
ff276b08 | 78 | At the time of very final cleanup, sv_free_arenas() is called from |
645c22ef DM |
79 | perl_destruct() to physically free all the arenas allocated since the |
80 | start of the interpreter. Note that this also clears PL_he_arenaroot, | |
81 | which is otherwise dealt with in hv.c. | |
82 | ||
83 | Manipulation of any of the PL_*root pointers is protected by enclosing | |
84 | LOCK_SV_MUTEX; ... UNLOCK_SV_MUTEX calls which should Do the Right Thing | |
85 | if threads are enabled. | |
86 | ||
87 | The function visit() scans the SV arenas list, and calls a specified | |
88 | function for each SV it finds which is still live - ie which has an SvTYPE | |
89 | other than all 1's, and a non-zero SvREFCNT. visit() is used by the | |
90 | following functions (specified as [function that calls visit()] / [function | |
91 | called by visit() for each SV]): | |
92 | ||
93 | sv_report_used() / do_report_used() | |
94 | dump all remaining SVs (debugging aid) | |
95 | ||
96 | sv_clean_objs() / do_clean_objs(),do_clean_named_objs() | |
97 | Attempt to free all objects pointed to by RVs, | |
98 | and, unless DISABLE_DESTRUCTOR_KLUDGE is defined, | |
99 | try to do the same for all objects indirectly | |
100 | referenced by typeglobs too. Called once from | |
101 | perl_destruct(), prior to calling sv_clean_all() | |
102 | below. | |
103 | ||
104 | sv_clean_all() / do_clean_all() | |
105 | SvREFCNT_dec(sv) each remaining SV, possibly | |
106 | triggering an sv_free(). It also sets the | |
107 | SVf_BREAK flag on the SV to indicate that the | |
108 | refcnt has been artificially lowered, and thus | |
109 | stopping sv_free() from giving spurious warnings | |
110 | about SVs which unexpectedly have a refcnt | |
111 | of zero. called repeatedly from perl_destruct() | |
112 | until there are no SVs left. | |
113 | ||
114 | =head2 Summary | |
115 | ||
116 | Private API to rest of sv.c | |
117 | ||
118 | new_SV(), del_SV(), | |
119 | ||
120 | new_XIV(), del_XIV(), | |
121 | new_XNV(), del_XNV(), | |
122 | etc | |
123 | ||
124 | Public API: | |
125 | ||
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 PM |
201 | if (ckWARN_d(WARN_INTERNAL)) |
202 | Perl_warner(aTHX_ WARN_INTERNAL, | |
1d7c1841 GS |
203 | "Attempt to free non-arena SV: 0x%"UVxf, |
204 | PTR2UV(p)); | |
a0d0e21e LW |
205 | return; |
206 | } | |
207 | } | |
4561caa4 | 208 | plant_SV(p); |
463ee0b2 | 209 | } |
a0d0e21e | 210 | |
4561caa4 CS |
211 | #else /* ! DEBUGGING */ |
212 | ||
213 | #define del_SV(p) plant_SV(p) | |
214 | ||
215 | #endif /* DEBUGGING */ | |
463ee0b2 | 216 | |
645c22ef DM |
217 | |
218 | /* | |
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) | |
549 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, | |
53e06cf0 | 550 | " in ", OP_DESC(PL_op)); |
1d7c1841 GS |
551 | else |
552 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, "", ""); | |
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 LW |
1228 | { |
1229 | char* pv; | |
1230 | U32 cur; | |
1231 | U32 len; | |
a0d0e21e | 1232 | IV iv; |
65202027 | 1233 | NV nv; |
79072805 LW |
1234 | MAGIC* magic; |
1235 | HV* stash; | |
1236 | ||
f130fd45 NIS |
1237 | if (mt != SVt_PV && SvREADONLY(sv) && SvFAKE(sv)) { |
1238 | sv_force_normal(sv); | |
1239 | } | |
1240 | ||
79072805 LW |
1241 | if (SvTYPE(sv) == mt) |
1242 | return TRUE; | |
1243 | ||
a5f75d66 AD |
1244 | if (mt < SVt_PVIV) |
1245 | (void)SvOOK_off(sv); | |
1246 | ||
79072805 LW |
1247 | switch (SvTYPE(sv)) { |
1248 | case SVt_NULL: | |
1249 | pv = 0; | |
1250 | cur = 0; | |
1251 | len = 0; | |
1252 | iv = 0; | |
1253 | nv = 0.0; | |
1254 | magic = 0; | |
1255 | stash = 0; | |
1256 | break; | |
79072805 LW |
1257 | case SVt_IV: |
1258 | pv = 0; | |
1259 | cur = 0; | |
1260 | len = 0; | |
463ee0b2 | 1261 | iv = SvIVX(sv); |
65202027 | 1262 | nv = (NV)SvIVX(sv); |
79072805 LW |
1263 | del_XIV(SvANY(sv)); |
1264 | magic = 0; | |
1265 | stash = 0; | |
ed6116ce | 1266 | if (mt == SVt_NV) |
463ee0b2 | 1267 | mt = SVt_PVNV; |
ed6116ce LW |
1268 | else if (mt < SVt_PVIV) |
1269 | mt = SVt_PVIV; | |
79072805 LW |
1270 | break; |
1271 | case SVt_NV: | |
1272 | pv = 0; | |
1273 | cur = 0; | |
1274 | len = 0; | |
463ee0b2 | 1275 | nv = SvNVX(sv); |
1bd302c3 | 1276 | iv = I_V(nv); |
79072805 LW |
1277 | magic = 0; |
1278 | stash = 0; | |
1279 | del_XNV(SvANY(sv)); | |
1280 | SvANY(sv) = 0; | |
ed6116ce | 1281 | if (mt < SVt_PVNV) |
79072805 LW |
1282 | mt = SVt_PVNV; |
1283 | break; | |
ed6116ce LW |
1284 | case SVt_RV: |
1285 | pv = (char*)SvRV(sv); | |
1286 | cur = 0; | |
1287 | len = 0; | |
56431972 RB |
1288 | iv = PTR2IV(pv); |
1289 | nv = PTR2NV(pv); | |
ed6116ce LW |
1290 | del_XRV(SvANY(sv)); |
1291 | magic = 0; | |
1292 | stash = 0; | |
1293 | break; | |
79072805 | 1294 | case SVt_PV: |
463ee0b2 | 1295 | pv = SvPVX(sv); |
79072805 LW |
1296 | cur = SvCUR(sv); |
1297 | len = SvLEN(sv); | |
1298 | iv = 0; | |
1299 | nv = 0.0; | |
1300 | magic = 0; | |
1301 | stash = 0; | |
1302 | del_XPV(SvANY(sv)); | |
748a9306 LW |
1303 | if (mt <= SVt_IV) |
1304 | mt = SVt_PVIV; | |
1305 | else if (mt == SVt_NV) | |
1306 | mt = SVt_PVNV; | |
79072805 LW |
1307 | break; |
1308 | case SVt_PVIV: | |
463ee0b2 | 1309 | pv = SvPVX(sv); |
79072805 LW |
1310 | cur = SvCUR(sv); |
1311 | len = SvLEN(sv); | |
463ee0b2 | 1312 | iv = SvIVX(sv); |
79072805 LW |
1313 | nv = 0.0; |
1314 | magic = 0; | |
1315 | stash = 0; | |
1316 | del_XPVIV(SvANY(sv)); | |
1317 | break; | |
1318 | case SVt_PVNV: | |
463ee0b2 | 1319 | pv = SvPVX(sv); |
79072805 LW |
1320 | cur = SvCUR(sv); |
1321 | len = SvLEN(sv); | |
463ee0b2 LW |
1322 | iv = SvIVX(sv); |
1323 | nv = SvNVX(sv); | |
79072805 LW |
1324 | magic = 0; |
1325 | stash = 0; | |
1326 | del_XPVNV(SvANY(sv)); | |
1327 | break; | |
1328 | case SVt_PVMG: | |
463ee0b2 | 1329 | pv = SvPVX(sv); |
79072805 LW |
1330 | cur = SvCUR(sv); |
1331 | len = SvLEN(sv); | |
463ee0b2 LW |
1332 | iv = SvIVX(sv); |
1333 | nv = SvNVX(sv); | |
79072805 LW |
1334 | magic = SvMAGIC(sv); |
1335 | stash = SvSTASH(sv); | |
1336 | del_XPVMG(SvANY(sv)); | |
1337 | break; | |
1338 | default: | |
cea2e8a9 | 1339 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1340 | } |
1341 | ||
1342 | switch (mt) { | |
1343 | case SVt_NULL: | |
cea2e8a9 | 1344 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1345 | case SVt_IV: |
1346 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 1347 | SvIVX(sv) = iv; |
79072805 LW |
1348 | break; |
1349 | case SVt_NV: | |
1350 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 1351 | SvNVX(sv) = nv; |
79072805 | 1352 | break; |
ed6116ce LW |
1353 | case SVt_RV: |
1354 | SvANY(sv) = new_XRV(); | |
1355 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 1356 | break; |
79072805 LW |
1357 | case SVt_PV: |
1358 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 1359 | SvPVX(sv) = pv; |
79072805 LW |
1360 | SvCUR(sv) = cur; |
1361 | SvLEN(sv) = len; | |
1362 | break; | |
1363 | case SVt_PVIV: | |
1364 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 1365 | SvPVX(sv) = pv; |
79072805 LW |
1366 | SvCUR(sv) = cur; |
1367 | SvLEN(sv) = len; | |
463ee0b2 | 1368 | SvIVX(sv) = iv; |
79072805 | 1369 | if (SvNIOK(sv)) |
a0d0e21e | 1370 | (void)SvIOK_on(sv); |
79072805 LW |
1371 | SvNOK_off(sv); |
1372 | break; | |
1373 | case SVt_PVNV: | |
1374 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 1375 | SvPVX(sv) = pv; |
79072805 LW |
1376 | SvCUR(sv) = cur; |
1377 | SvLEN(sv) = len; | |
463ee0b2 LW |
1378 | SvIVX(sv) = iv; |
1379 | SvNVX(sv) = nv; | |
79072805 LW |
1380 | break; |
1381 | case SVt_PVMG: | |
1382 | SvANY(sv) = new_XPVMG(); | |
463ee0b2 | 1383 | SvPVX(sv) = pv; |
79072805 LW |
1384 | SvCUR(sv) = cur; |
1385 | SvLEN(sv) = len; | |
463ee0b2 LW |
1386 | SvIVX(sv) = iv; |
1387 | SvNVX(sv) = nv; | |
79072805 LW |
1388 | SvMAGIC(sv) = magic; |
1389 | SvSTASH(sv) = stash; | |
1390 | break; | |
1391 | case SVt_PVLV: | |
1392 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 1393 | SvPVX(sv) = pv; |
79072805 LW |
1394 | SvCUR(sv) = cur; |
1395 | SvLEN(sv) = len; | |
463ee0b2 LW |
1396 | SvIVX(sv) = iv; |
1397 | SvNVX(sv) = nv; | |
79072805 LW |
1398 | SvMAGIC(sv) = magic; |
1399 | SvSTASH(sv) = stash; | |
1400 | LvTARGOFF(sv) = 0; | |
1401 | LvTARGLEN(sv) = 0; | |
1402 | LvTARG(sv) = 0; | |
1403 | LvTYPE(sv) = 0; | |
1404 | break; | |
1405 | case SVt_PVAV: | |
1406 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
1407 | if (pv) |
1408 | Safefree(pv); | |
2304df62 | 1409 | SvPVX(sv) = 0; |
d1bf51dd | 1410 | AvMAX(sv) = -1; |
93965878 | 1411 | AvFILLp(sv) = -1; |
463ee0b2 LW |
1412 | SvIVX(sv) = 0; |
1413 | SvNVX(sv) = 0.0; | |
1414 | SvMAGIC(sv) = magic; | |
1415 | SvSTASH(sv) = stash; | |
1416 | AvALLOC(sv) = 0; | |
79072805 LW |
1417 | AvARYLEN(sv) = 0; |
1418 | AvFLAGS(sv) = 0; | |
1419 | break; | |
1420 | case SVt_PVHV: | |
1421 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1422 | if (pv) |
1423 | Safefree(pv); | |
1424 | SvPVX(sv) = 0; | |
1425 | HvFILL(sv) = 0; | |
1426 | HvMAX(sv) = 0; | |
8aacddc1 NIS |
1427 | HvTOTALKEYS(sv) = 0; |
1428 | HvPLACEHOLDERS(sv) = 0; | |
79072805 LW |
1429 | SvMAGIC(sv) = magic; |
1430 | SvSTASH(sv) = stash; | |
79072805 LW |
1431 | HvRITER(sv) = 0; |
1432 | HvEITER(sv) = 0; | |
1433 | HvPMROOT(sv) = 0; | |
1434 | HvNAME(sv) = 0; | |
79072805 LW |
1435 | break; |
1436 | case SVt_PVCV: | |
1437 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1438 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 1439 | SvPVX(sv) = pv; |
79072805 LW |
1440 | SvCUR(sv) = cur; |
1441 | SvLEN(sv) = len; | |
463ee0b2 LW |
1442 | SvIVX(sv) = iv; |
1443 | SvNVX(sv) = nv; | |
79072805 LW |
1444 | SvMAGIC(sv) = magic; |
1445 | SvSTASH(sv) = stash; | |
79072805 LW |
1446 | break; |
1447 | case SVt_PVGV: | |
1448 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 1449 | SvPVX(sv) = pv; |
79072805 LW |
1450 | SvCUR(sv) = cur; |
1451 | SvLEN(sv) = len; | |
463ee0b2 LW |
1452 | SvIVX(sv) = iv; |
1453 | SvNVX(sv) = nv; | |
79072805 LW |
1454 | SvMAGIC(sv) = magic; |
1455 | SvSTASH(sv) = stash; | |
93a17b20 | 1456 | GvGP(sv) = 0; |
79072805 LW |
1457 | GvNAME(sv) = 0; |
1458 | GvNAMELEN(sv) = 0; | |
1459 | GvSTASH(sv) = 0; | |
a5f75d66 | 1460 | GvFLAGS(sv) = 0; |
79072805 LW |
1461 | break; |
1462 | case SVt_PVBM: | |
1463 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 1464 | SvPVX(sv) = pv; |
79072805 LW |
1465 | SvCUR(sv) = cur; |
1466 | SvLEN(sv) = len; | |
463ee0b2 LW |
1467 | SvIVX(sv) = iv; |
1468 | SvNVX(sv) = nv; | |
79072805 LW |
1469 | SvMAGIC(sv) = magic; |
1470 | SvSTASH(sv) = stash; | |
1471 | BmRARE(sv) = 0; | |
1472 | BmUSEFUL(sv) = 0; | |
1473 | BmPREVIOUS(sv) = 0; | |
1474 | break; | |
1475 | case SVt_PVFM: | |
1476 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1477 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 1478 | SvPVX(sv) = pv; |
79072805 LW |
1479 | SvCUR(sv) = cur; |
1480 | SvLEN(sv) = len; | |
463ee0b2 LW |
1481 | SvIVX(sv) = iv; |
1482 | SvNVX(sv) = nv; | |
79072805 LW |
1483 | SvMAGIC(sv) = magic; |
1484 | SvSTASH(sv) = stash; | |
79072805 | 1485 | break; |
8990e307 LW |
1486 | case SVt_PVIO: |
1487 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1488 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
1489 | SvPVX(sv) = pv; |
1490 | SvCUR(sv) = cur; | |
1491 | SvLEN(sv) = len; | |
1492 | SvIVX(sv) = iv; | |
1493 | SvNVX(sv) = nv; | |
1494 | SvMAGIC(sv) = magic; | |
1495 | SvSTASH(sv) = stash; | |
85e6fe83 | 1496 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1497 | break; |
1498 | } | |
1499 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
1500 | SvFLAGS(sv) |= mt; | |
79072805 LW |
1501 | return TRUE; |
1502 | } | |
1503 | ||
645c22ef DM |
1504 | /* |
1505 | =for apidoc sv_backoff | |
1506 | ||
1507 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1508 | wrapper instead. | |
1509 | ||
1510 | =cut | |
1511 | */ | |
1512 | ||
79072805 | 1513 | int |
864dbfa3 | 1514 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1515 | { |
1516 | assert(SvOOK(sv)); | |
463ee0b2 LW |
1517 | if (SvIVX(sv)) { |
1518 | char *s = SvPVX(sv); | |
1519 | SvLEN(sv) += SvIVX(sv); | |
1520 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 1521 | SvIV_set(sv, 0); |
463ee0b2 | 1522 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1523 | } |
1524 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1525 | return 0; |
79072805 LW |
1526 | } |
1527 | ||
954c1994 GS |
1528 | /* |
1529 | =for apidoc sv_grow | |
1530 | ||
645c22ef DM |
1531 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1532 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1533 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1534 | |
1535 | =cut | |
1536 | */ | |
1537 | ||
79072805 | 1538 | char * |
864dbfa3 | 1539 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1540 | { |
1541 | register char *s; | |
1542 | ||
55497cff | 1543 | #ifdef HAS_64K_LIMIT |
79072805 | 1544 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1545 | PerlIO_printf(Perl_debug_log, |
1546 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1547 | my_exit(1); |
1548 | } | |
55497cff | 1549 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1550 | if (SvROK(sv)) |
1551 | sv_unref(sv); | |
79072805 LW |
1552 | if (SvTYPE(sv) < SVt_PV) { |
1553 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 1554 | s = SvPVX(sv); |
79072805 LW |
1555 | } |
1556 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1557 | sv_backoff(sv); | |
463ee0b2 | 1558 | s = SvPVX(sv); |
79072805 LW |
1559 | if (newlen > SvLEN(sv)) |
1560 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1561 | #ifdef HAS_64K_LIMIT |
1562 | if (newlen >= 0x10000) | |
1563 | newlen = 0xFFFF; | |
1564 | #endif | |
79072805 LW |
1565 | } |
1566 | else | |
463ee0b2 | 1567 | s = SvPVX(sv); |
79072805 | 1568 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 1569 | if (SvLEN(sv) && s) { |
f5a32c7f | 1570 | #if defined(MYMALLOC) && !defined(LEAKTEST) |
8d6dde3e IZ |
1571 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
1572 | if (newlen <= l) { | |
1573 | SvLEN_set(sv, l); | |
1574 | return s; | |
1575 | } else | |
c70c8a0a | 1576 | #endif |
79072805 | 1577 | Renew(s,newlen,char); |
8d6dde3e | 1578 | } |
4e83176d | 1579 | else { |
ee5f0761 AMS |
1580 | /* sv_force_normal_flags() must not try to unshare the new |
1581 | PVX we allocate below. AMS 20010713 */ | |
4e83176d | 1582 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
4e83176d AMS |
1583 | SvFAKE_off(sv); |
1584 | SvREADONLY_off(sv); | |
4e83176d AMS |
1585 | } |
1586 | New(703, s, newlen, char); | |
1587 | } | |
79072805 LW |
1588 | SvPV_set(sv, s); |
1589 | SvLEN_set(sv, newlen); | |
1590 | } | |
1591 | return s; | |
1592 | } | |
1593 | ||
954c1994 GS |
1594 | /* |
1595 | =for apidoc sv_setiv | |
1596 | ||
645c22ef DM |
1597 | Copies an integer into the given SV, upgrading first if necessary. |
1598 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1599 | |
1600 | =cut | |
1601 | */ | |
1602 | ||
79072805 | 1603 | void |
864dbfa3 | 1604 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1605 | { |
2213622d | 1606 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
1607 | switch (SvTYPE(sv)) { |
1608 | case SVt_NULL: | |
79072805 | 1609 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1610 | break; |
1611 | case SVt_NV: | |
1612 | sv_upgrade(sv, SVt_PVNV); | |
1613 | break; | |
ed6116ce | 1614 | case SVt_RV: |
463ee0b2 | 1615 | case SVt_PV: |
79072805 | 1616 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1617 | break; |
a0d0e21e LW |
1618 | |
1619 | case SVt_PVGV: | |
a0d0e21e LW |
1620 | case SVt_PVAV: |
1621 | case SVt_PVHV: | |
1622 | case SVt_PVCV: | |
1623 | case SVt_PVFM: | |
1624 | case SVt_PVIO: | |
411caa50 | 1625 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
53e06cf0 | 1626 | OP_DESC(PL_op)); |
463ee0b2 | 1627 | } |
a0d0e21e | 1628 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1629 | SvIVX(sv) = i; |
463ee0b2 | 1630 | SvTAINT(sv); |
79072805 LW |
1631 | } |
1632 | ||
954c1994 GS |
1633 | /* |
1634 | =for apidoc sv_setiv_mg | |
1635 | ||
1636 | Like C<sv_setiv>, but also handles 'set' magic. | |
1637 | ||
1638 | =cut | |
1639 | */ | |
1640 | ||
79072805 | 1641 | void |
864dbfa3 | 1642 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1643 | { |
1644 | sv_setiv(sv,i); | |
1645 | SvSETMAGIC(sv); | |
1646 | } | |
1647 | ||
954c1994 GS |
1648 | /* |
1649 | =for apidoc sv_setuv | |
1650 | ||
645c22ef DM |
1651 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1652 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1653 | |
1654 | =cut | |
1655 | */ | |
1656 | ||
ef50df4b | 1657 | void |
864dbfa3 | 1658 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1659 | { |
55ada374 NC |
1660 | /* With these two if statements: |
1661 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1662 | |
55ada374 NC |
1663 | without |
1664 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1665 | |
55ada374 NC |
1666 | If you wish to remove them, please benchmark to see what the effect is |
1667 | */ | |
28e5dec8 JH |
1668 | if (u <= (UV)IV_MAX) { |
1669 | sv_setiv(sv, (IV)u); | |
1670 | return; | |
1671 | } | |
25da4f38 IZ |
1672 | sv_setiv(sv, 0); |
1673 | SvIsUV_on(sv); | |
1674 | SvUVX(sv) = u; | |
55497cff | 1675 | } |
1676 | ||
954c1994 GS |
1677 | /* |
1678 | =for apidoc sv_setuv_mg | |
1679 | ||
1680 | Like C<sv_setuv>, but also handles 'set' magic. | |
1681 | ||
1682 | =cut | |
1683 | */ | |
1684 | ||
55497cff | 1685 | void |
864dbfa3 | 1686 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1687 | { |
55ada374 NC |
1688 | /* With these two if statements: |
1689 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1690 | |
55ada374 NC |
1691 | without |
1692 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1693 | |
55ada374 NC |
1694 | If you wish to remove them, please benchmark to see what the effect is |
1695 | */ | |
28e5dec8 JH |
1696 | if (u <= (UV)IV_MAX) { |
1697 | sv_setiv(sv, (IV)u); | |
1698 | } else { | |
1699 | sv_setiv(sv, 0); | |
1700 | SvIsUV_on(sv); | |
1701 | sv_setuv(sv,u); | |
1702 | } | |
ef50df4b GS |
1703 | SvSETMAGIC(sv); |
1704 | } | |
1705 | ||
954c1994 GS |
1706 | /* |
1707 | =for apidoc sv_setnv | |
1708 | ||
645c22ef DM |
1709 | Copies a double into the given SV, upgrading first if necessary. |
1710 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1711 | |
1712 | =cut | |
1713 | */ | |
1714 | ||
ef50df4b | 1715 | void |
65202027 | 1716 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1717 | { |
2213622d | 1718 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1719 | switch (SvTYPE(sv)) { |
1720 | case SVt_NULL: | |
1721 | case SVt_IV: | |
79072805 | 1722 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1723 | break; |
a0d0e21e LW |
1724 | case SVt_RV: |
1725 | case SVt_PV: | |
1726 | case SVt_PVIV: | |
79072805 | 1727 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1728 | break; |
827b7e14 | 1729 | |
a0d0e21e | 1730 | case SVt_PVGV: |
a0d0e21e LW |
1731 | case SVt_PVAV: |
1732 | case SVt_PVHV: | |
1733 | case SVt_PVCV: | |
1734 | case SVt_PVFM: | |
1735 | case SVt_PVIO: | |
411caa50 | 1736 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
53e06cf0 | 1737 | OP_NAME(PL_op)); |
79072805 | 1738 | } |
463ee0b2 | 1739 | SvNVX(sv) = num; |
a0d0e21e | 1740 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1741 | SvTAINT(sv); |
79072805 LW |
1742 | } |
1743 | ||
954c1994 GS |
1744 | /* |
1745 | =for apidoc sv_setnv_mg | |
1746 | ||
1747 | Like C<sv_setnv>, but also handles 'set' magic. | |
1748 | ||
1749 | =cut | |
1750 | */ | |
1751 | ||
ef50df4b | 1752 | void |
65202027 | 1753 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1754 | { |
1755 | sv_setnv(sv,num); | |
1756 | SvSETMAGIC(sv); | |
1757 | } | |
1758 | ||
645c22ef DM |
1759 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1760 | * printable version of the offending string | |
1761 | */ | |
1762 | ||
76e3520e | 1763 | STATIC void |
cea2e8a9 | 1764 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e | 1765 | { |
94463019 JH |
1766 | SV *dsv; |
1767 | char tmpbuf[64]; | |
1768 | char *pv; | |
1769 | ||
1770 | if (DO_UTF8(sv)) { | |
1771 | dsv = sv_2mortal(newSVpv("", 0)); | |
1772 | pv = sv_uni_display(dsv, sv, 10, 0); | |
1773 | } else { | |
1774 | char *d = tmpbuf; | |
1775 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; | |
1776 | /* each *s can expand to 4 chars + "...\0", | |
1777 | i.e. need room for 8 chars */ | |
ecdeb87c | 1778 | |
94463019 JH |
1779 | char *s, *end; |
1780 | for (s = SvPVX(sv), end = s + SvCUR(sv); s < end && d < limit; s++) { | |
1781 | int ch = *s & 0xFF; | |
1782 | if (ch & 128 && !isPRINT_LC(ch)) { | |
1783 | *d++ = 'M'; | |
1784 | *d++ = '-'; | |
1785 | ch &= 127; | |
1786 | } | |
1787 | if (ch == '\n') { | |
1788 | *d++ = '\\'; | |
1789 | *d++ = 'n'; | |
1790 | } | |
1791 | else if (ch == '\r') { | |
1792 | *d++ = '\\'; | |
1793 | *d++ = 'r'; | |
1794 | } | |
1795 | else if (ch == '\f') { | |
1796 | *d++ = '\\'; | |
1797 | *d++ = 'f'; | |
1798 | } | |
1799 | else if (ch == '\\') { | |
1800 | *d++ = '\\'; | |
1801 | *d++ = '\\'; | |
1802 | } | |
1803 | else if (ch == '\0') { | |
1804 | *d++ = '\\'; | |
1805 | *d++ = '0'; | |
1806 | } | |
1807 | else if (isPRINT_LC(ch)) | |
1808 | *d++ = ch; | |
1809 | else { | |
1810 | *d++ = '^'; | |
1811 | *d++ = toCTRL(ch); | |
1812 | } | |
1813 | } | |
1814 | if (s < end) { | |
1815 | *d++ = '.'; | |
1816 | *d++ = '.'; | |
1817 | *d++ = '.'; | |
1818 | } | |
1819 | *d = '\0'; | |
1820 | pv = tmpbuf; | |
a0d0e21e | 1821 | } |
a0d0e21e | 1822 | |
533c011a | 1823 | if (PL_op) |
42d38218 | 1824 | Perl_warner(aTHX_ WARN_NUMERIC, |
94463019 JH |
1825 | "Argument \"%s\" isn't numeric in %s", pv, |
1826 | OP_DESC(PL_op)); | |
a0d0e21e | 1827 | else |
42d38218 | 1828 | Perl_warner(aTHX_ WARN_NUMERIC, |
94463019 | 1829 | "Argument \"%s\" isn't numeric", pv); |
a0d0e21e LW |
1830 | } |
1831 | ||
c2988b20 NC |
1832 | /* |
1833 | =for apidoc looks_like_number | |
1834 | ||
645c22ef DM |
1835 | Test if the content of an SV looks like a number (or is a number). |
1836 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1837 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1838 | |
1839 | =cut | |
1840 | */ | |
1841 | ||
1842 | I32 | |
1843 | Perl_looks_like_number(pTHX_ SV *sv) | |
1844 | { | |
1845 | register char *sbegin; | |
1846 | STRLEN len; | |
1847 | ||
1848 | if (SvPOK(sv)) { | |
1849 | sbegin = SvPVX(sv); | |
1850 | len = SvCUR(sv); | |
1851 | } | |
1852 | else if (SvPOKp(sv)) | |
1853 | sbegin = SvPV(sv, len); | |
1854 | else | |
1855 | return 1; /* Historic. Wrong? */ | |
1856 | return grok_number(sbegin, len, NULL); | |
1857 | } | |
25da4f38 IZ |
1858 | |
1859 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1860 | until proven guilty, assume that things are not that bad... */ | |
1861 | ||
645c22ef DM |
1862 | /* |
1863 | NV_PRESERVES_UV: | |
1864 | ||
1865 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
1866 | an IV (an assumption perl has been based on to date) it becomes necessary |
1867 | to remove the assumption that the NV always carries enough precision to | |
1868 | recreate the IV whenever needed, and that the NV is the canonical form. | |
1869 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 1870 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
1871 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
1872 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
1873 | conversion where precision was lost and IV/UV/NV slots that have a | |
1874 | valid conversion which has lost no precision | |
645c22ef | 1875 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
1876 | would lose precision, the precise conversion (or differently |
1877 | imprecise conversion) is also performed and cached, to prevent | |
1878 | requests for different numeric formats on the same SV causing | |
1879 | lossy conversion chains. (lossless conversion chains are perfectly | |
1880 | acceptable (still)) | |
1881 | ||
1882 | ||
1883 | flags are used: | |
1884 | SvIOKp is true if the IV slot contains a valid value | |
1885 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
1886 | SvNOKp is true if the NV slot contains a valid value | |
1887 | SvNOK is true only if the NV value is accurate | |
1888 | ||
1889 | so | |
645c22ef | 1890 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
1891 | IV(or UV) would lose accuracy over a direct conversion from PV to |
1892 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
1893 | SV as IOK NOKp (ie not NOK). | |
1894 | ||
645c22ef | 1895 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
1896 | NV would lose accuracy over a direct conversion from PV to NV. If it |
1897 | would, cache both conversions, flag similarly. | |
1898 | ||
1899 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
1900 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
1901 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
1902 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 1903 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 1904 | |
645c22ef DM |
1905 | The benefit of this is that operations such as pp_add know that if |
1906 | SvIOK is true for both left and right operands, then integer addition | |
1907 | can be used instead of floating point (for cases where the result won't | |
1908 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
1909 | loss of precision compared with integer addition. |
1910 | ||
1911 | * making IV and NV equal status should make maths accurate on 64 bit | |
1912 | platforms | |
1913 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 1914 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
1915 | looking for SvIOK and checking for overflow will not outweigh the |
1916 | fp to integer speedup) | |
1917 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
1918 | values, as the change from SvIOK to SvIOKp will cause a call into | |
1919 | sv_2iv each time rather than a macro access direct to the IV slot | |
1920 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 1921 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
1922 | |
1923 | #################################################################### | |
645c22ef DM |
1924 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
1925 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
1926 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
1927 | #################################################################### |
1928 | ||
645c22ef | 1929 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
1930 | performance ratio. |
1931 | */ | |
1932 | ||
1933 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
1934 | # define IS_NUMBER_UNDERFLOW_IV 1 |
1935 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
1936 | # define IS_NUMBER_IV_AND_UV 2 | |
1937 | # define IS_NUMBER_OVERFLOW_IV 4 | |
1938 | # define IS_NUMBER_OVERFLOW_UV 5 | |
1939 | ||
1940 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
1941 | |
1942 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
1943 | STATIC int | |
645c22ef | 1944 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 1945 | { |
1779d84d | 1946 | 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 |
1947 | if (SvNVX(sv) < (NV)IV_MIN) { |
1948 | (void)SvIOKp_on(sv); | |
1949 | (void)SvNOK_on(sv); | |
1950 | SvIVX(sv) = IV_MIN; | |
1951 | return IS_NUMBER_UNDERFLOW_IV; | |
1952 | } | |
1953 | if (SvNVX(sv) > (NV)UV_MAX) { | |
1954 | (void)SvIOKp_on(sv); | |
1955 | (void)SvNOK_on(sv); | |
1956 | SvIsUV_on(sv); | |
1957 | SvUVX(sv) = UV_MAX; | |
1958 | return IS_NUMBER_OVERFLOW_UV; | |
1959 | } | |
c2988b20 NC |
1960 | (void)SvIOKp_on(sv); |
1961 | (void)SvNOK_on(sv); | |
1962 | /* Can't use strtol etc to convert this string. (See truth table in | |
1963 | sv_2iv */ | |
1964 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
1965 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1966 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
1967 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
1968 | } else { | |
1969 | /* Integer is imprecise. NOK, IOKp */ | |
1970 | } | |
1971 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
1972 | } | |
1973 | SvIsUV_on(sv); | |
1974 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1975 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
1976 | if (SvUVX(sv) == UV_MAX) { | |
1977 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
1978 | possibly be preserved by NV. Hence, it must be overflow. | |
1979 | NOK, IOKp */ | |
1980 | return IS_NUMBER_OVERFLOW_UV; | |
1981 | } | |
1982 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
1983 | } else { | |
1984 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 1985 | } |
c2988b20 | 1986 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 1987 | } |
645c22ef DM |
1988 | #endif /* !NV_PRESERVES_UV*/ |
1989 | ||
1990 | /* | |
1991 | =for apidoc sv_2iv | |
1992 | ||
1993 | Return the integer value of an SV, doing any necessary string conversion, | |
1994 | magic etc. Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
1995 | ||
1996 | =cut | |
1997 | */ | |
28e5dec8 | 1998 | |
a0d0e21e | 1999 | IV |
864dbfa3 | 2000 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
2001 | { |
2002 | if (!sv) | |
2003 | return 0; | |
8990e307 | 2004 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2005 | mg_get(sv); |
2006 | if (SvIOKp(sv)) | |
2007 | return SvIVX(sv); | |
748a9306 | 2008 | if (SvNOKp(sv)) { |
25da4f38 | 2009 | return I_V(SvNVX(sv)); |
748a9306 | 2010 | } |
36477c24 | 2011 | if (SvPOKp(sv) && SvLEN(sv)) |
2012 | return asIV(sv); | |
3fe9a6f1 | 2013 | if (!SvROK(sv)) { |
d008e5eb | 2014 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2015 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2016 | report_uninit(); |
c6ee37c5 | 2017 | } |
36477c24 | 2018 | return 0; |
3fe9a6f1 | 2019 | } |
463ee0b2 | 2020 | } |
ed6116ce | 2021 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2022 | if (SvROK(sv)) { |
a0d0e21e | 2023 | SV* tmpstr; |
1554e226 | 2024 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2025 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2026 | return SvIV(tmpstr); |
56431972 | 2027 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2028 | } |
47deb5e7 NIS |
2029 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2030 | sv_force_normal(sv); | |
2031 | } | |
0336b60e | 2032 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2033 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2034 | report_uninit(); |
ed6116ce LW |
2035 | return 0; |
2036 | } | |
79072805 | 2037 | } |
25da4f38 IZ |
2038 | if (SvIOKp(sv)) { |
2039 | if (SvIsUV(sv)) { | |
2040 | return (IV)(SvUVX(sv)); | |
2041 | } | |
2042 | else { | |
2043 | return SvIVX(sv); | |
2044 | } | |
463ee0b2 | 2045 | } |
748a9306 | 2046 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2047 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2048 | * without also getting a cached IV/UV from it at the same time | |
2049 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2050 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2051 | |
2052 | if (SvTYPE(sv) == SVt_NV) | |
2053 | sv_upgrade(sv, SVt_PVNV); | |
2054 | ||
28e5dec8 JH |
2055 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2056 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2057 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2058 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2059 | cases go to UV */ | |
2060 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
748a9306 | 2061 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2062 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2063 | #ifndef NV_PRESERVES_UV | |
2064 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2065 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2066 | /* Don't flag it as "accurately an integer" if the number | |
2067 | came from a (by definition imprecise) NV operation, and | |
2068 | we're outside the range of NV integer precision */ | |
2069 | #endif | |
2070 | ) { | |
2071 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2072 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2073 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2074 | PTR2UV(sv), |
2075 | SvNVX(sv), | |
2076 | SvIVX(sv))); | |
2077 | ||
2078 | } else { | |
2079 | /* IV not precise. No need to convert from PV, as NV | |
2080 | conversion would already have cached IV if it detected | |
2081 | that PV->IV would be better than PV->NV->IV | |
2082 | flags already correct - don't set public IOK. */ | |
2083 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2084 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2085 | PTR2UV(sv), |
2086 | SvNVX(sv), | |
2087 | SvIVX(sv))); | |
2088 | } | |
2089 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2090 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2091 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2092 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2093 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2094 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2095 | Hopefully for 2s complement IV_MIN is something like | |
2096 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2097 | } |
25da4f38 | 2098 | else { |
ff68c719 | 2099 | SvUVX(sv) = U_V(SvNVX(sv)); |
28e5dec8 JH |
2100 | if ( |
2101 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2102 | #ifndef NV_PRESERVES_UV | |
2103 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2104 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2105 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2106 | /* Don't flag it as "accurately an integer" if the number | |
2107 | came from a (by definition imprecise) NV operation, and | |
2108 | we're outside the range of NV integer precision */ | |
2109 | #endif | |
2110 | ) | |
2111 | SvIOK_on(sv); | |
25da4f38 IZ |
2112 | SvIsUV_on(sv); |
2113 | ret_iv_max: | |
1c846c1f | 2114 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2115 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2116 | PTR2UV(sv), |
57def98f JH |
2117 | SvUVX(sv), |
2118 | SvUVX(sv))); | |
25da4f38 IZ |
2119 | return (IV)SvUVX(sv); |
2120 | } | |
748a9306 LW |
2121 | } |
2122 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2123 | UV value; |
2124 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2125 | /* We want to avoid a possible problem when we cache an IV which |
2126 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2127 | the same as the direct translation of the initial string |
2128 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2129 | be careful to ensure that the value with the .456 is around if the | |
2130 | NV value is requested in the future). | |
1c846c1f | 2131 | |
25da4f38 IZ |
2132 | This means that if we cache such an IV, we need to cache the |
2133 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2134 | cache the NV if we are sure it's not needed. |
25da4f38 | 2135 | */ |
16b7a9a4 | 2136 | |
c2988b20 NC |
2137 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2138 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2139 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2140 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2141 | if (SvTYPE(sv) < SVt_PVIV) |
2142 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2143 | (void)SvIOK_on(sv); |
c2988b20 NC |
2144 | } else if (SvTYPE(sv) < SVt_PVNV) |
2145 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2146 | |
c2988b20 NC |
2147 | /* If NV preserves UV then we only use the UV value if we know that |
2148 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2149 | then the value returned may have more precision than atof() will | |
2150 | return, even though value isn't perfectly accurate. */ | |
2151 | if ((numtype & (IS_NUMBER_IN_UV | |
2152 | #ifdef NV_PRESERVES_UV | |
2153 | | IS_NUMBER_NOT_INT | |
2154 | #endif | |
2155 | )) == IS_NUMBER_IN_UV) { | |
2156 | /* This won't turn off the public IOK flag if it was set above */ | |
2157 | (void)SvIOKp_on(sv); | |
2158 | ||
2159 | if (!(numtype & IS_NUMBER_NEG)) { | |
2160 | /* positive */; | |
2161 | if (value <= (UV)IV_MAX) { | |
2162 | SvIVX(sv) = (IV)value; | |
2163 | } else { | |
2164 | SvUVX(sv) = value; | |
2165 | SvIsUV_on(sv); | |
2166 | } | |
2167 | } else { | |
2168 | /* 2s complement assumption */ | |
2169 | if (value <= (UV)IV_MIN) { | |
2170 | SvIVX(sv) = -(IV)value; | |
2171 | } else { | |
2172 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2173 | I'm assuming it will be rare. */ |
c2988b20 NC |
2174 | if (SvTYPE(sv) < SVt_PVNV) |
2175 | sv_upgrade(sv, SVt_PVNV); | |
2176 | SvNOK_on(sv); | |
2177 | SvIOK_off(sv); | |
2178 | SvIOKp_on(sv); | |
2179 | SvNVX(sv) = -(NV)value; | |
2180 | SvIVX(sv) = IV_MIN; | |
2181 | } | |
2182 | } | |
2183 | } | |
2184 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2185 | will be in the previous block to set the IV slot, and the next | |
2186 | block to set the NV slot. So no else here. */ | |
2187 | ||
2188 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2189 | != IS_NUMBER_IN_UV) { | |
2190 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
2191 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2192 | |
c2988b20 NC |
2193 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2194 | not_a_number(sv); | |
28e5dec8 | 2195 | |
65202027 | 2196 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2197 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2198 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2199 | #else |
1779d84d | 2200 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"NVgf")\n", |
c2988b20 | 2201 | PTR2UV(sv), SvNVX(sv))); |
65202027 | 2202 | #endif |
28e5dec8 JH |
2203 | |
2204 | ||
2205 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2206 | (void)SvIOKp_on(sv); |
2207 | (void)SvNOK_on(sv); | |
2208 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2209 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2210 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2211 | SvIOK_on(sv); | |
28e5dec8 | 2212 | } else { |
c2988b20 NC |
2213 | /* Integer is imprecise. NOK, IOKp */ |
2214 | } | |
2215 | /* UV will not work better than IV */ | |
2216 | } else { | |
2217 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2218 | SvIsUV_on(sv); | |
2219 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2220 | SvUVX(sv) = UV_MAX; | |
2221 | SvIsUV_on(sv); | |
2222 | } else { | |
2223 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2224 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ | |
2225 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2226 | SvIOK_on(sv); | |
28e5dec8 JH |
2227 | SvIsUV_on(sv); |
2228 | } else { | |
c2988b20 NC |
2229 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2230 | SvIsUV_on(sv); | |
28e5dec8 | 2231 | } |
28e5dec8 | 2232 | } |
c2988b20 NC |
2233 | goto ret_iv_max; |
2234 | } | |
28e5dec8 | 2235 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2236 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2237 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2238 | /* The IV slot will have been set from value returned by | |
2239 | grok_number above. The NV slot has just been set using | |
2240 | Atof. */ | |
560b0c46 | 2241 | SvNOK_on(sv); |
c2988b20 NC |
2242 | assert (SvIOKp(sv)); |
2243 | } else { | |
2244 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2245 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2246 | /* Small enough to preserve all bits. */ | |
2247 | (void)SvIOKp_on(sv); | |
2248 | SvNOK_on(sv); | |
2249 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2250 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2251 | SvIOK_on(sv); | |
2252 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2253 | this NV is in the preserved range, therefore: */ | |
2254 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2255 | < (UV)IV_MAX)) { | |
1779d84d | 2256 | 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 |
2257 | } |
2258 | } else { | |
2259 | /* IN_UV NOT_INT | |
2260 | 0 0 already failed to read UV. | |
2261 | 0 1 already failed to read UV. | |
2262 | 1 0 you won't get here in this case. IV/UV | |
2263 | slot set, public IOK, Atof() unneeded. | |
2264 | 1 1 already read UV. | |
2265 | so there's no point in sv_2iuv_non_preserve() attempting | |
2266 | to use atol, strtol, strtoul etc. */ | |
2267 | if (sv_2iuv_non_preserve (sv, numtype) | |
2268 | >= IS_NUMBER_OVERFLOW_IV) | |
2269 | goto ret_iv_max; | |
2270 | } | |
2271 | } | |
28e5dec8 | 2272 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2273 | } |
28e5dec8 | 2274 | } else { |
599cee73 | 2275 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2276 | report_uninit(); |
25da4f38 IZ |
2277 | if (SvTYPE(sv) < SVt_IV) |
2278 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2279 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2280 | return 0; |
79072805 | 2281 | } |
1d7c1841 GS |
2282 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2283 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2284 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2285 | } |
2286 | ||
645c22ef DM |
2287 | /* |
2288 | =for apidoc sv_2uv | |
2289 | ||
2290 | Return the unsigned integer value of an SV, doing any necessary string | |
2291 | conversion, magic etc. Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> | |
2292 | macros. | |
2293 | ||
2294 | =cut | |
2295 | */ | |
2296 | ||
ff68c719 | 2297 | UV |
864dbfa3 | 2298 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 2299 | { |
2300 | if (!sv) | |
2301 | return 0; | |
2302 | if (SvGMAGICAL(sv)) { | |
2303 | mg_get(sv); | |
2304 | if (SvIOKp(sv)) | |
2305 | return SvUVX(sv); | |
2306 | if (SvNOKp(sv)) | |
2307 | return U_V(SvNVX(sv)); | |
36477c24 | 2308 | if (SvPOKp(sv) && SvLEN(sv)) |
2309 | return asUV(sv); | |
3fe9a6f1 | 2310 | if (!SvROK(sv)) { |
d008e5eb | 2311 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2312 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2313 | report_uninit(); |
c6ee37c5 | 2314 | } |
36477c24 | 2315 | return 0; |
3fe9a6f1 | 2316 | } |
ff68c719 | 2317 | } |
2318 | if (SvTHINKFIRST(sv)) { | |
2319 | if (SvROK(sv)) { | |
ff68c719 | 2320 | SV* tmpstr; |
1554e226 | 2321 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2322 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2323 | return SvUV(tmpstr); |
56431972 | 2324 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2325 | } |
8a818333 NIS |
2326 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2327 | sv_force_normal(sv); | |
2328 | } | |
0336b60e | 2329 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2330 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2331 | report_uninit(); |
ff68c719 | 2332 | return 0; |
2333 | } | |
2334 | } | |
25da4f38 IZ |
2335 | if (SvIOKp(sv)) { |
2336 | if (SvIsUV(sv)) { | |
2337 | return SvUVX(sv); | |
2338 | } | |
2339 | else { | |
2340 | return (UV)SvIVX(sv); | |
2341 | } | |
ff68c719 | 2342 | } |
2343 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2344 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2345 | * without also getting a cached IV/UV from it at the same time | |
2346 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2347 | * IV or UV at same time to avoid this. */ | |
2348 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2349 | ||
25da4f38 IZ |
2350 | if (SvTYPE(sv) == SVt_NV) |
2351 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2352 | |
2353 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2354 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
f7bbb42a | 2355 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2356 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2357 | #ifndef NV_PRESERVES_UV | |
2358 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2359 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2360 | /* Don't flag it as "accurately an integer" if the number | |
2361 | came from a (by definition imprecise) NV operation, and | |
2362 | we're outside the range of NV integer precision */ | |
2363 | #endif | |
2364 | ) { | |
2365 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2366 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2367 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2368 | PTR2UV(sv), |
2369 | SvNVX(sv), | |
2370 | SvIVX(sv))); | |
2371 | ||
2372 | } else { | |
2373 | /* IV not precise. No need to convert from PV, as NV | |
2374 | conversion would already have cached IV if it detected | |
2375 | that PV->IV would be better than PV->NV->IV | |
2376 | flags already correct - don't set public IOK. */ | |
2377 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2378 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2379 | PTR2UV(sv), |
2380 | SvNVX(sv), | |
2381 | SvIVX(sv))); | |
2382 | } | |
2383 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2384 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2385 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2386 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2387 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2388 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2389 | Hopefully for 2s complement IV_MIN is something like | |
2390 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2391 | } |
28e5dec8 JH |
2392 | else { |
2393 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2394 | if ( | |
2395 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2396 | #ifndef NV_PRESERVES_UV | |
2397 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2398 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2399 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2400 | /* Don't flag it as "accurately an integer" if the number | |
2401 | came from a (by definition imprecise) NV operation, and | |
2402 | we're outside the range of NV integer precision */ | |
2403 | #endif | |
2404 | ) | |
2405 | SvIOK_on(sv); | |
2406 | SvIsUV_on(sv); | |
1c846c1f | 2407 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2408 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2409 | PTR2UV(sv), |
28e5dec8 JH |
2410 | SvUVX(sv), |
2411 | SvUVX(sv))); | |
25da4f38 | 2412 | } |
ff68c719 | 2413 | } |
2414 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2415 | UV value; |
2416 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2417 | |
2418 | /* We want to avoid a possible problem when we cache a UV which | |
2419 | may be later translated to an NV, and the resulting NV is not | |
2420 | the translation of the initial data. | |
1c846c1f | 2421 | |
25da4f38 IZ |
2422 | This means that if we cache such a UV, we need to cache the |
2423 | NV as well. Moreover, we trade speed for space, and do not | |
2424 | cache the NV if not needed. | |
2425 | */ | |
16b7a9a4 | 2426 | |
c2988b20 NC |
2427 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2428 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2429 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2430 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2431 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2432 | sv_upgrade(sv, SVt_PVIV); |
2433 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2434 | } else if (SvTYPE(sv) < SVt_PVNV) |
2435 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2436 | |
c2988b20 NC |
2437 | /* If NV preserves UV then we only use the UV value if we know that |
2438 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2439 | then the value returned may have more precision than atof() will | |
2440 | return, even though it isn't accurate. */ | |
2441 | if ((numtype & (IS_NUMBER_IN_UV | |
2442 | #ifdef NV_PRESERVES_UV | |
2443 | | IS_NUMBER_NOT_INT | |
2444 | #endif | |
2445 | )) == IS_NUMBER_IN_UV) { | |
2446 | /* This won't turn off the public IOK flag if it was set above */ | |
2447 | (void)SvIOKp_on(sv); | |
2448 | ||
2449 | if (!(numtype & IS_NUMBER_NEG)) { | |
2450 | /* positive */; | |
2451 | if (value <= (UV)IV_MAX) { | |
2452 | SvIVX(sv) = (IV)value; | |
28e5dec8 JH |
2453 | } else { |
2454 | /* it didn't overflow, and it was positive. */ | |
c2988b20 | 2455 | SvUVX(sv) = value; |
28e5dec8 JH |
2456 | SvIsUV_on(sv); |
2457 | } | |
c2988b20 NC |
2458 | } else { |
2459 | /* 2s complement assumption */ | |
2460 | if (value <= (UV)IV_MIN) { | |
2461 | SvIVX(sv) = -(IV)value; | |
2462 | } else { | |
2463 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2464 | I'm assuming it will be rare. */ |
c2988b20 NC |
2465 | if (SvTYPE(sv) < SVt_PVNV) |
2466 | sv_upgrade(sv, SVt_PVNV); | |
2467 | SvNOK_on(sv); | |
2468 | SvIOK_off(sv); | |
2469 | SvIOKp_on(sv); | |
2470 | SvNVX(sv) = -(NV)value; | |
2471 | SvIVX(sv) = IV_MIN; | |
2472 | } | |
2473 | } | |
2474 | } | |
2475 | ||
2476 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2477 | != IS_NUMBER_IN_UV) { | |
2478 | /* It wasn't an integer, or it overflowed the UV. */ | |
2479 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2480 | |
c2988b20 | 2481 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2482 | not_a_number(sv); |
2483 | ||
2484 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2485 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2486 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2487 | #else |
1779d84d | 2488 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"NVgf")\n", |
c2988b20 | 2489 | PTR2UV(sv), SvNVX(sv))); |
28e5dec8 JH |
2490 | #endif |
2491 | ||
2492 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2493 | (void)SvIOKp_on(sv); |
2494 | (void)SvNOK_on(sv); | |
2495 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2496 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2497 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2498 | SvIOK_on(sv); | |
2499 | } else { | |
2500 | /* Integer is imprecise. NOK, IOKp */ | |
2501 | } | |
2502 | /* UV will not work better than IV */ | |
2503 | } else { | |
2504 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2505 | SvIsUV_on(sv); | |
2506 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2507 | SvUVX(sv) = UV_MAX; | |
2508 | SvIsUV_on(sv); | |
2509 | } else { | |
2510 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2511 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs | |
2512 | NV preservse UV so can do correct comparison. */ | |
2513 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2514 | SvIOK_on(sv); | |
2515 | SvIsUV_on(sv); | |
2516 | } else { | |
2517 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2518 | SvIsUV_on(sv); | |
2519 | } | |
2520 | } | |
2521 | } | |
28e5dec8 | 2522 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2523 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2524 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2525 | /* The UV slot will have been set from value returned by | |
2526 | grok_number above. The NV slot has just been set using | |
2527 | Atof. */ | |
560b0c46 | 2528 | SvNOK_on(sv); |
c2988b20 NC |
2529 | assert (SvIOKp(sv)); |
2530 | } else { | |
2531 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2532 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2533 | /* Small enough to preserve all bits. */ | |
2534 | (void)SvIOKp_on(sv); | |
2535 | SvNOK_on(sv); | |
2536 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2537 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2538 | SvIOK_on(sv); | |
2539 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2540 | this NV is in the preserved range, therefore: */ | |
2541 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2542 | < (UV)IV_MAX)) { | |
1779d84d | 2543 | 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 |
2544 | } |
2545 | } else | |
2546 | sv_2iuv_non_preserve (sv, numtype); | |
2547 | } | |
28e5dec8 | 2548 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2549 | } |
ff68c719 | 2550 | } |
2551 | else { | |
d008e5eb | 2552 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2553 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2554 | report_uninit(); |
c6ee37c5 | 2555 | } |
25da4f38 IZ |
2556 | if (SvTYPE(sv) < SVt_IV) |
2557 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2558 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2559 | return 0; |
2560 | } | |
25da4f38 | 2561 | |
1d7c1841 GS |
2562 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2563 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2564 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2565 | } |
2566 | ||
645c22ef DM |
2567 | /* |
2568 | =for apidoc sv_2nv | |
2569 | ||
2570 | Return the num value of an SV, doing any necessary string or integer | |
2571 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2572 | macros. | |
2573 | ||
2574 | =cut | |
2575 | */ | |
2576 | ||
65202027 | 2577 | NV |
864dbfa3 | 2578 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2579 | { |
2580 | if (!sv) | |
2581 | return 0.0; | |
8990e307 | 2582 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2583 | mg_get(sv); |
2584 | if (SvNOKp(sv)) | |
2585 | return SvNVX(sv); | |
a0d0e21e | 2586 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2587 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
2588 | !grok_number(SvPVX(sv), SvCUR(sv), NULL)) | |
a0d0e21e | 2589 | not_a_number(sv); |
097ee67d | 2590 | return Atof(SvPVX(sv)); |
a0d0e21e | 2591 | } |
25da4f38 | 2592 | if (SvIOKp(sv)) { |
1c846c1f | 2593 | if (SvIsUV(sv)) |
65202027 | 2594 | return (NV)SvUVX(sv); |
25da4f38 | 2595 | else |
65202027 | 2596 | return (NV)SvIVX(sv); |
25da4f38 | 2597 | } |
16d20bd9 | 2598 | if (!SvROK(sv)) { |
d008e5eb | 2599 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2600 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2601 | report_uninit(); |
c6ee37c5 | 2602 | } |
16d20bd9 AD |
2603 | return 0; |
2604 | } | |
463ee0b2 | 2605 | } |
ed6116ce | 2606 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2607 | if (SvROK(sv)) { |
a0d0e21e | 2608 | SV* tmpstr; |
1554e226 | 2609 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
1dc13c17 | 2610 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2611 | return SvNV(tmpstr); |
56431972 | 2612 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2613 | } |
8a818333 NIS |
2614 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2615 | sv_force_normal(sv); | |
2616 | } | |
0336b60e | 2617 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2618 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2619 | report_uninit(); |
ed6116ce LW |
2620 | return 0.0; |
2621 | } | |
79072805 LW |
2622 | } |
2623 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2624 | if (SvTYPE(sv) == SVt_IV) |
2625 | sv_upgrade(sv, SVt_PVNV); | |
2626 | else | |
2627 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2628 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2629 | DEBUG_c({ |
f93f4e46 | 2630 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2631 | PerlIO_printf(Perl_debug_log, |
2632 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2633 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2634 | RESTORE_NUMERIC_LOCAL(); |
2635 | }); | |
65202027 | 2636 | #else |
572bbb43 | 2637 | DEBUG_c({ |
f93f4e46 | 2638 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2639 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%"NVgf")\n", |
1d7c1841 | 2640 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2641 | RESTORE_NUMERIC_LOCAL(); |
2642 | }); | |
572bbb43 | 2643 | #endif |
79072805 LW |
2644 | } |
2645 | else if (SvTYPE(sv) < SVt_PVNV) | |
2646 | sv_upgrade(sv, SVt_PVNV); | |
59d8ce62 NC |
2647 | if (SvNOKp(sv)) { |
2648 | return SvNVX(sv); | |
61604483 | 2649 | } |
59d8ce62 | 2650 | if (SvIOKp(sv)) { |
65202027 | 2651 | SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv); |
28e5dec8 JH |
2652 | #ifdef NV_PRESERVES_UV |
2653 | SvNOK_on(sv); | |
2654 | #else | |
2655 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2656 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2657 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2658 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2659 | SvNOK_on(sv); | |
2660 | else | |
2661 | SvNOKp_on(sv); | |
2662 | #endif | |
93a17b20 | 2663 | } |
748a9306 | 2664 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2665 | UV value; |
2666 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2667 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) | |
a0d0e21e | 2668 | not_a_number(sv); |
28e5dec8 | 2669 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2670 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2671 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2672 | /* It's definitely an integer */ |
c2988b20 NC |
2673 | SvNVX(sv) = (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value; |
2674 | } else | |
2675 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 JH |
2676 | SvNOK_on(sv); |
2677 | #else | |
c2988b20 | 2678 | SvNVX(sv) = Atof(SvPVX(sv)); |
28e5dec8 JH |
2679 | /* Only set the public NV OK flag if this NV preserves the value in |
2680 | the PV at least as well as an IV/UV would. | |
2681 | Not sure how to do this 100% reliably. */ | |
2682 | /* if that shift count is out of range then Configure's test is | |
2683 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2684 | UV_BITS */ | |
2685 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2686 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2687 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2688 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2689 | /* Can't use strtol etc to convert this string, so don't try. | |
2690 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2691 | SvNOK_on(sv); | |
2692 | } else { | |
2693 | /* value has been set. It may not be precise. */ | |
2694 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2695 | /* 2s complement assumption for (UV)IV_MIN */ | |
2696 | SvNOK_on(sv); /* Integer is too negative. */ | |
2697 | } else { | |
2698 | SvNOKp_on(sv); | |
2699 | SvIOKp_on(sv); | |
6fa402ec | 2700 | |
c2988b20 NC |
2701 | if (numtype & IS_NUMBER_NEG) { |
2702 | SvIVX(sv) = -(IV)value; | |
2703 | } else if (value <= (UV)IV_MAX) { | |
2704 | SvIVX(sv) = (IV)value; | |
2705 | } else { | |
2706 | SvUVX(sv) = value; | |
2707 | SvIsUV_on(sv); | |
2708 | } | |
2709 | ||
2710 | if (numtype & IS_NUMBER_NOT_INT) { | |
2711 | /* I believe that even if the original PV had decimals, | |
2712 | they are lost beyond the limit of the FP precision. | |
2713 | However, neither is canonical, so both only get p | |
2714 | flags. NWC, 2000/11/25 */ | |
2715 | /* Both already have p flags, so do nothing */ | |
2716 | } else { | |
2717 | NV nv = SvNVX(sv); | |
2718 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2719 | if (SvIVX(sv) == I_V(nv)) { | |
2720 | SvNOK_on(sv); | |
2721 | SvIOK_on(sv); | |
2722 | } else { | |
2723 | SvIOK_on(sv); | |
2724 | /* It had no "." so it must be integer. */ | |
2725 | } | |
2726 | } else { | |
2727 | /* between IV_MAX and NV(UV_MAX). | |
2728 | Could be slightly > UV_MAX */ | |
6fa402ec | 2729 | |
c2988b20 NC |
2730 | if (numtype & IS_NUMBER_NOT_INT) { |
2731 | /* UV and NV both imprecise. */ | |
2732 | } else { | |
2733 | UV nv_as_uv = U_V(nv); | |
2734 | ||
2735 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2736 | SvNOK_on(sv); | |
2737 | SvIOK_on(sv); | |
2738 | } else { | |
2739 | SvIOK_on(sv); | |
2740 | } | |
2741 | } | |
2742 | } | |
2743 | } | |
2744 | } | |
2745 | } | |
28e5dec8 | 2746 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2747 | } |
79072805 | 2748 | else { |
599cee73 | 2749 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2750 | report_uninit(); |
25da4f38 IZ |
2751 | if (SvTYPE(sv) < SVt_NV) |
2752 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2753 | /* XXX Ilya implies that this is a bug in callers that assume this |
2754 | and ideally should be fixed. */ | |
25da4f38 | 2755 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2756 | return 0.0; |
79072805 | 2757 | } |
572bbb43 | 2758 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2759 | DEBUG_c({ |
f93f4e46 | 2760 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2761 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2762 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2763 | RESTORE_NUMERIC_LOCAL(); |
2764 | }); | |
65202027 | 2765 | #else |
572bbb43 | 2766 | DEBUG_c({ |
f93f4e46 | 2767 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2768 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%"NVgf")\n", |
1d7c1841 | 2769 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2770 | RESTORE_NUMERIC_LOCAL(); |
2771 | }); | |
572bbb43 | 2772 | #endif |
463ee0b2 | 2773 | return SvNVX(sv); |
79072805 LW |
2774 | } |
2775 | ||
645c22ef DM |
2776 | /* asIV(): extract an integer from the string value of an SV. |
2777 | * Caller must validate PVX */ | |
2778 | ||
76e3520e | 2779 | STATIC IV |
cea2e8a9 | 2780 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2781 | { |
c2988b20 NC |
2782 | UV value; |
2783 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2784 | ||
2785 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2786 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2787 | /* It's definitely an integer */ |
c2988b20 NC |
2788 | if (numtype & IS_NUMBER_NEG) { |
2789 | if (value < (UV)IV_MIN) | |
2790 | return -(IV)value; | |
2791 | } else { | |
2792 | if (value < (UV)IV_MAX) | |
2793 | return (IV)value; | |
2794 | } | |
2795 | } | |
d008e5eb | 2796 | if (!numtype) { |
d008e5eb GS |
2797 | if (ckWARN(WARN_NUMERIC)) |
2798 | not_a_number(sv); | |
2799 | } | |
c2988b20 | 2800 | return I_V(Atof(SvPVX(sv))); |
36477c24 | 2801 | } |
2802 | ||
645c22ef DM |
2803 | /* asUV(): extract an unsigned integer from the string value of an SV |
2804 | * Caller must validate PVX */ | |
2805 | ||
76e3520e | 2806 | STATIC UV |
cea2e8a9 | 2807 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2808 | { |
c2988b20 NC |
2809 | UV value; |
2810 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
36477c24 | 2811 | |
c2988b20 NC |
2812 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2813 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2814 | /* It's definitely an integer */ |
6fa402ec | 2815 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2816 | return value; |
2817 | } | |
d008e5eb | 2818 | if (!numtype) { |
d008e5eb GS |
2819 | if (ckWARN(WARN_NUMERIC)) |
2820 | not_a_number(sv); | |
2821 | } | |
097ee67d | 2822 | return U_V(Atof(SvPVX(sv))); |
36477c24 | 2823 | } |
2824 | ||
645c22ef DM |
2825 | /* |
2826 | =for apidoc sv_2pv_nolen | |
2827 | ||
2828 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2829 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2830 | =cut | |
2831 | */ | |
2832 | ||
79072805 | 2833 | char * |
864dbfa3 | 2834 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
2835 | { |
2836 | STRLEN n_a; | |
2837 | return sv_2pv(sv, &n_a); | |
2838 | } | |
2839 | ||
645c22ef DM |
2840 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2841 | * UV as a string towards the end of buf, and return pointers to start and | |
2842 | * end of it. | |
2843 | * | |
2844 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2845 | */ | |
2846 | ||
864dbfa3 | 2847 | static char * |
25da4f38 IZ |
2848 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
2849 | { | |
25da4f38 IZ |
2850 | char *ptr = buf + TYPE_CHARS(UV); |
2851 | char *ebuf = ptr; | |
2852 | int sign; | |
25da4f38 IZ |
2853 | |
2854 | if (is_uv) | |
2855 | sign = 0; | |
2856 | else if (iv >= 0) { | |
2857 | uv = iv; | |
2858 | sign = 0; | |
2859 | } else { | |
2860 | uv = -iv; | |
2861 | sign = 1; | |
2862 | } | |
2863 | do { | |
2864 | *--ptr = '0' + (uv % 10); | |
2865 | } while (uv /= 10); | |
2866 | if (sign) | |
2867 | *--ptr = '-'; | |
2868 | *peob = ebuf; | |
2869 | return ptr; | |
2870 | } | |
2871 | ||
645c22ef DM |
2872 | /* For backwards-compatibility only. sv_2pv() is normally #def'ed to |
2873 | * C<sv_2pv_macro()>. See also C<sv_2pv_flags()>. | |
2874 | */ | |
2875 | ||
1fa8b10d | 2876 | char * |
864dbfa3 | 2877 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) |
79072805 | 2878 | { |
36f65ada | 2879 | return sv_2pv_flags(sv, lp, SV_GMAGIC); |
8d6d96c1 HS |
2880 | } |
2881 | ||
645c22ef DM |
2882 | /* |
2883 | =for apidoc sv_2pv_flags | |
2884 | ||
ff276b08 | 2885 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
2886 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
2887 | if necessary. | |
2888 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
2889 | usually end up here too. | |
2890 | ||
2891 | =cut | |
2892 | */ | |
2893 | ||
8d6d96c1 HS |
2894 | char * |
2895 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
2896 | { | |
79072805 LW |
2897 | register char *s; |
2898 | int olderrno; | |
46fc3d4c | 2899 | SV *tsv; |
25da4f38 IZ |
2900 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
2901 | char *tmpbuf = tbuf; | |
79072805 | 2902 | |
463ee0b2 LW |
2903 | if (!sv) { |
2904 | *lp = 0; | |
2905 | return ""; | |
2906 | } | |
8990e307 | 2907 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
2908 | if (flags & SV_GMAGIC) |
2909 | mg_get(sv); | |
463ee0b2 LW |
2910 | if (SvPOKp(sv)) { |
2911 | *lp = SvCUR(sv); | |
2912 | return SvPVX(sv); | |
2913 | } | |
cf2093f6 | 2914 | if (SvIOKp(sv)) { |
1c846c1f | 2915 | if (SvIsUV(sv)) |
57def98f | 2916 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 2917 | else |
57def98f | 2918 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 2919 | tsv = Nullsv; |
a0d0e21e | 2920 | goto tokensave; |
463ee0b2 LW |
2921 | } |
2922 | if (SvNOKp(sv)) { | |
2d4389e4 | 2923 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 2924 | tsv = Nullsv; |
a0d0e21e | 2925 | goto tokensave; |
463ee0b2 | 2926 | } |
16d20bd9 | 2927 | if (!SvROK(sv)) { |
d008e5eb | 2928 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2929 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2930 | report_uninit(); |
c6ee37c5 | 2931 | } |
16d20bd9 AD |
2932 | *lp = 0; |
2933 | return ""; | |
2934 | } | |
463ee0b2 | 2935 | } |
ed6116ce LW |
2936 | if (SvTHINKFIRST(sv)) { |
2937 | if (SvROK(sv)) { | |
a0d0e21e | 2938 | SV* tmpstr; |
1554e226 | 2939 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
1dc13c17 | 2940 | (SvTYPE(tmpstr) != SVt_RV || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2941 | return SvPV(tmpstr,*lp); |
ed6116ce LW |
2942 | sv = (SV*)SvRV(sv); |
2943 | if (!sv) | |
2944 | s = "NULLREF"; | |
2945 | else { | |
f9277f47 IZ |
2946 | MAGIC *mg; |
2947 | ||
ed6116ce | 2948 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
2949 | case SVt_PVMG: |
2950 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 2951 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
3149a8e4 | 2952 | == (SVs_OBJECT|SVs_RMG)) |
57668c4d | 2953 | && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp") |
14befaf4 | 2954 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
2cd61cdb | 2955 | regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 2956 | |
2cd61cdb | 2957 | if (!mg->mg_ptr) { |
8782bef2 GB |
2958 | char *fptr = "msix"; |
2959 | char reflags[6]; | |
2960 | char ch; | |
2961 | int left = 0; | |
2962 | int right = 4; | |
2963 | U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12; | |
2964 | ||
155aba94 | 2965 | while((ch = *fptr++)) { |
8782bef2 GB |
2966 | if(reganch & 1) { |
2967 | reflags[left++] = ch; | |
2968 | } | |
2969 | else { | |
2970 | reflags[right--] = ch; | |
2971 | } | |
2972 | reganch >>= 1; | |
2973 | } | |
2974 | if(left != 4) { | |
2975 | reflags[left] = '-'; | |
2976 | left = 5; | |
2977 | } | |
2978 | ||
2979 | mg->mg_len = re->prelen + 4 + left; | |
2980 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); | |
2981 | Copy("(?", mg->mg_ptr, 2, char); | |
2982 | Copy(reflags, mg->mg_ptr+2, left, char); | |
2983 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
2984 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
1bd3ad17 IZ |
2985 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
2986 | mg->mg_ptr[mg->mg_len] = 0; | |
2987 | } | |
3280af22 | 2988 | PL_reginterp_cnt += re->program[0].next_off; |
1bd3ad17 IZ |
2989 | *lp = mg->mg_len; |
2990 | return mg->mg_ptr; | |
f9277f47 IZ |
2991 | } |
2992 | /* Fall through */ | |
ed6116ce LW |
2993 | case SVt_NULL: |
2994 | case SVt_IV: | |
2995 | case SVt_NV: | |
2996 | case SVt_RV: | |
2997 | case SVt_PV: | |
2998 | case SVt_PVIV: | |
2999 | case SVt_PVNV: | |
81689caa HS |
3000 | case SVt_PVBM: if (SvROK(sv)) |
3001 | s = "REF"; | |
3002 | else | |
3003 | s = "SCALAR"; break; | |
ed6116ce LW |
3004 | case SVt_PVLV: s = "LVALUE"; break; |
3005 | case SVt_PVAV: s = "ARRAY"; break; | |
3006 | case SVt_PVHV: s = "HASH"; break; | |
3007 | case SVt_PVCV: s = "CODE"; break; | |
3008 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 3009 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 3010 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
3011 | default: s = "UNKNOWN"; break; |
3012 | } | |
46fc3d4c | 3013 | tsv = NEWSV(0,0); |
c86bf373 AMS |
3014 | if (SvOBJECT(sv)) { |
3015 | HV *svs = SvSTASH(sv); | |
3016 | Perl_sv_setpvf( | |
3017 | aTHX_ tsv, "%s=%s", | |
3018 | /* [20011101.072] This bandaid for C<package;> | |
3019 | should eventually be removed. AMS 20011103 */ | |
3020 | (svs ? HvNAME(svs) : "<none>"), s | |
3021 | ); | |
3022 | } | |
ed6116ce | 3023 | else |
46fc3d4c | 3024 | sv_setpv(tsv, s); |
57def98f | 3025 | Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv)); |
a0d0e21e | 3026 | goto tokensaveref; |
463ee0b2 | 3027 | } |
ed6116ce LW |
3028 | *lp = strlen(s); |
3029 | return s; | |
79072805 | 3030 | } |
0336b60e | 3031 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3032 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 3033 | report_uninit(); |
ed6116ce LW |
3034 | *lp = 0; |
3035 | return ""; | |
79072805 | 3036 | } |
79072805 | 3037 | } |
28e5dec8 JH |
3038 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3039 | /* I'm assuming that if both IV and NV are equally valid then | |
3040 | converting the IV is going to be more efficient */ | |
3041 | U32 isIOK = SvIOK(sv); | |
3042 | U32 isUIOK = SvIsUV(sv); | |
3043 | char buf[TYPE_CHARS(UV)]; | |
3044 | char *ebuf, *ptr; | |
3045 | ||
3046 | if (SvTYPE(sv) < SVt_PVIV) | |
3047 | sv_upgrade(sv, SVt_PVIV); | |
3048 | if (isUIOK) | |
3049 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3050 | else | |
3051 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
3052 | SvGROW(sv, ebuf - ptr + 1); /* inlined from sv_setpvn */ | |
3053 | Move(ptr,SvPVX(sv),ebuf - ptr,char); | |
3054 | SvCUR_set(sv, ebuf - ptr); | |
3055 | s = SvEND(sv); | |
3056 | *s = '\0'; | |
3057 | if (isIOK) | |
3058 | SvIOK_on(sv); | |
3059 | else | |
3060 | SvIOKp_on(sv); | |
3061 | if (isUIOK) | |
3062 | SvIsUV_on(sv); | |
3063 | } | |
3064 | else if (SvNOKp(sv)) { | |
79072805 LW |
3065 | if (SvTYPE(sv) < SVt_PVNV) |
3066 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3067 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
59155cc0 | 3068 | SvGROW(sv, NV_DIG + 20); |
463ee0b2 | 3069 | s = SvPVX(sv); |
79072805 | 3070 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3071 | #ifdef apollo |
463ee0b2 | 3072 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3073 | (void)strcpy(s,"0"); |
3074 | else | |
3075 | #endif /*apollo*/ | |
bbce6d69 | 3076 | { |
2d4389e4 | 3077 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3078 | } |
79072805 | 3079 | errno = olderrno; |
a0d0e21e LW |
3080 | #ifdef FIXNEGATIVEZERO |
3081 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3082 | strcpy(s,"0"); | |
3083 | #endif | |
79072805 LW |
3084 | while (*s) s++; |
3085 | #ifdef hcx | |
3086 | if (s[-1] == '.') | |
46fc3d4c | 3087 | *--s = '\0'; |
79072805 LW |
3088 | #endif |
3089 | } | |
79072805 | 3090 | else { |
0336b60e IZ |
3091 | if (ckWARN(WARN_UNINITIALIZED) |
3092 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
1d7c1841 | 3093 | report_uninit(); |
a0d0e21e | 3094 | *lp = 0; |
25da4f38 IZ |
3095 | if (SvTYPE(sv) < SVt_PV) |
3096 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3097 | sv_upgrade(sv, SVt_PV); | |
a0d0e21e | 3098 | return ""; |
79072805 | 3099 | } |
463ee0b2 LW |
3100 | *lp = s - SvPVX(sv); |
3101 | SvCUR_set(sv, *lp); | |
79072805 | 3102 | SvPOK_on(sv); |
1d7c1841 GS |
3103 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3104 | PTR2UV(sv),SvPVX(sv))); | |
463ee0b2 | 3105 | return SvPVX(sv); |
a0d0e21e LW |
3106 | |
3107 | tokensave: | |
3108 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3109 | /* Sneaky stuff here */ | |
3110 | ||
3111 | tokensaveref: | |
46fc3d4c | 3112 | if (!tsv) |
96827780 | 3113 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3114 | sv_2mortal(tsv); |
3115 | *lp = SvCUR(tsv); | |
3116 | return SvPVX(tsv); | |
a0d0e21e LW |
3117 | } |
3118 | else { | |
3119 | STRLEN len; | |
46fc3d4c | 3120 | char *t; |
3121 | ||
3122 | if (tsv) { | |
3123 | sv_2mortal(tsv); | |
3124 | t = SvPVX(tsv); | |
3125 | len = SvCUR(tsv); | |
3126 | } | |
3127 | else { | |
96827780 MB |
3128 | t = tmpbuf; |
3129 | len = strlen(tmpbuf); | |
46fc3d4c | 3130 | } |
a0d0e21e | 3131 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3132 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3133 | t = "0"; | |
3134 | len = 1; | |
3135 | } | |
a0d0e21e LW |
3136 | #endif |
3137 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 3138 | *lp = len; |
a0d0e21e LW |
3139 | s = SvGROW(sv, len + 1); |
3140 | SvCUR_set(sv, len); | |
46fc3d4c | 3141 | (void)strcpy(s, t); |
6bf554b4 | 3142 | SvPOKp_on(sv); |
a0d0e21e LW |
3143 | return s; |
3144 | } | |
463ee0b2 LW |
3145 | } |
3146 | ||
645c22ef DM |
3147 | /* |
3148 | =for apidoc sv_2pvbyte_nolen | |
3149 | ||
3150 | Return a pointer to the byte-encoded representation of the SV. | |
3151 | May cause the SV to be downgraded from UTF8 as a side-effect. | |
3152 | ||
3153 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3154 | ||
3155 | =cut | |
3156 | */ | |
3157 | ||
7340a771 GS |
3158 | char * |
3159 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3160 | { | |
560a288e GS |
3161 | STRLEN n_a; |
3162 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
3163 | } |
3164 | ||
645c22ef DM |
3165 | /* |
3166 | =for apidoc sv_2pvbyte | |
3167 | ||
3168 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
3169 | to its length. May cause the SV to be downgraded from UTF8 as a | |
3170 | side-effect. | |
3171 | ||
3172 | Usually accessed via the C<SvPVbyte> macro. | |
3173 | ||
3174 | =cut | |
3175 | */ | |
3176 | ||
7340a771 GS |
3177 | char * |
3178 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3179 | { | |
0875d2fe NIS |
3180 | sv_utf8_downgrade(sv,0); |
3181 | return SvPV(sv,*lp); | |
7340a771 GS |
3182 | } |
3183 | ||
645c22ef DM |
3184 | /* |
3185 | =for apidoc sv_2pvutf8_nolen | |
3186 | ||
3187 | Return a pointer to the UTF8-encoded representation of the SV. | |
3188 | May cause the SV to be upgraded to UTF8 as a side-effect. | |
3189 | ||
3190 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3191 | ||
3192 | =cut | |
3193 | */ | |
3194 | ||
7340a771 GS |
3195 | char * |
3196 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3197 | { | |
560a288e GS |
3198 | STRLEN n_a; |
3199 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
3200 | } |
3201 | ||
645c22ef DM |
3202 | /* |
3203 | =for apidoc sv_2pvutf8 | |
3204 | ||
3205 | Return a pointer to the UTF8-encoded representation of the SV, and set *lp | |
3206 | to its length. May cause the SV to be upgraded to UTF8 as a side-effect. | |
3207 | ||
3208 | Usually accessed via the C<SvPVutf8> macro. | |
3209 | ||
3210 | =cut | |
3211 | */ | |
3212 | ||
7340a771 GS |
3213 | char * |
3214 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3215 | { | |
560a288e | 3216 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3217 | return SvPV(sv,*lp); |
7340a771 | 3218 | } |
1c846c1f | 3219 | |
645c22ef DM |
3220 | /* |
3221 | =for apidoc sv_2bool | |
3222 | ||
3223 | This function is only called on magical items, and is only used by | |
8cf8f3d1 | 3224 | sv_true() or its macro equivalent. |
645c22ef DM |
3225 | |
3226 | =cut | |
3227 | */ | |
3228 | ||
463ee0b2 | 3229 | bool |
864dbfa3 | 3230 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3231 | { |
8990e307 | 3232 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3233 | mg_get(sv); |
3234 | ||
a0d0e21e LW |
3235 | if (!SvOK(sv)) |
3236 | return 0; | |
3237 | if (SvROK(sv)) { | |
a0d0e21e | 3238 | SV* tmpsv; |
1554e226 | 3239 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
9e3013b1 | 3240 | (!SvROK(tmpsv) || (SvRV(tmpsv) != SvRV(sv)))) |
9e7bc3e8 | 3241 | return SvTRUE(tmpsv); |
a0d0e21e LW |
3242 | return SvRV(sv) != 0; |
3243 | } | |
463ee0b2 | 3244 | if (SvPOKp(sv)) { |
11343788 MB |
3245 | register XPV* Xpvtmp; |
3246 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
3247 | (*Xpvtmp->xpv_pv > '0' || | |
3248 | Xpvtmp->xpv_cur > 1 || | |
3249 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3250 | return 1; |
3251 | else | |
3252 | return 0; | |
3253 | } | |
3254 | else { | |
3255 | if (SvIOKp(sv)) | |
3256 | return SvIVX(sv) != 0; | |
3257 | else { | |
3258 | if (SvNOKp(sv)) | |
3259 | return SvNVX(sv) != 0.0; | |
3260 | else | |
3261 | return FALSE; | |
3262 | } | |
3263 | } | |
79072805 LW |
3264 | } |
3265 | ||
c461cf8f JH |
3266 | /* |
3267 | =for apidoc sv_utf8_upgrade | |
3268 | ||
3269 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3270 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3271 | Always sets the SvUTF8 flag to avoid future validity checks even |
3272 | if all the bytes have hibit clear. | |
c461cf8f JH |
3273 | |
3274 | =cut | |
3275 | */ | |
3276 | ||
4411f3b6 | 3277 | STRLEN |
560a288e GS |
3278 | Perl_sv_utf8_upgrade(pTHX_ register SV *sv) |
3279 | { | |
36f65ada | 3280 | return sv_utf8_upgrade_flags(sv, SV_GMAGIC); |
8d6d96c1 HS |
3281 | } |
3282 | ||
3283 | /* | |
3284 | =for apidoc sv_utf8_upgrade_flags | |
3285 | ||
3286 | Convert the PV of an SV to its UTF8-encoded form. | |
645c22ef | 3287 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3288 | Always sets the SvUTF8 flag to avoid future validity checks even |
3289 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3290 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3291 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3292 | ||
3293 | =cut | |
3294 | */ | |
3295 | ||
3296 | STRLEN | |
3297 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3298 | { | |
db42d148 | 3299 | U8 *s, *t, *e; |
511c2ff0 | 3300 | int hibit = 0; |
560a288e | 3301 | |
4411f3b6 NIS |
3302 | if (!sv) |
3303 | return 0; | |
3304 | ||
e0e62c2a NIS |
3305 | if (!SvPOK(sv)) { |
3306 | STRLEN len = 0; | |
8d6d96c1 | 3307 | (void) sv_2pv_flags(sv,&len, flags); |
e0e62c2a NIS |
3308 | if (!SvPOK(sv)) |
3309 | return len; | |
3310 | } | |
4411f3b6 NIS |
3311 | |
3312 | if (SvUTF8(sv)) | |
3313 | return SvCUR(sv); | |
560a288e | 3314 | |
db42d148 NIS |
3315 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
3316 | sv_force_normal(sv); | |
3317 | } | |
3318 | ||
9f4817db | 3319 | if (PL_encoding) |
5d170f3a | 3320 | Perl_sv_recode_to_utf8(aTHX_ sv, PL_encoding); |
9f4817db | 3321 | else { /* Assume Latin-1/EBCDIC */ |
0a378802 JH |
3322 | /* This function could be much more efficient if we |
3323 | * had a FLAG in SVs to signal if there are any hibit | |
3324 | * chars in the PV. Given that there isn't such a flag | |
3325 | * make the loop as fast as possible. */ | |
3326 | s = (U8 *) SvPVX(sv); | |
3327 | e = (U8 *) SvEND(sv); | |
3328 | t = s; | |
3329 | while (t < e) { | |
3330 | U8 ch = *t++; | |
3331 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) | |
3332 | break; | |
3333 | } | |
3334 | if (hibit) { | |
3335 | STRLEN len; | |
ecdeb87c | 3336 | |
0a378802 JH |
3337 | len = SvCUR(sv) + 1; /* Plus the \0 */ |
3338 | SvPVX(sv) = (char*)bytes_to_utf8((U8*)s, &len); | |
3339 | SvCUR(sv) = len - 1; | |
3340 | if (SvLEN(sv) != 0) | |
3341 | Safefree(s); /* No longer using what was there before. */ | |
3342 | SvLEN(sv) = len; /* No longer know the real size. */ | |
3343 | } | |
9f4817db JH |
3344 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ |
3345 | SvUTF8_on(sv); | |
560a288e | 3346 | } |
4411f3b6 | 3347 | return SvCUR(sv); |
560a288e GS |
3348 | } |
3349 | ||
c461cf8f JH |
3350 | /* |
3351 | =for apidoc sv_utf8_downgrade | |
3352 | ||
3353 | Attempt to convert the PV of an SV from UTF8-encoded to byte encoding. | |
3354 | This may not be possible if the PV contains non-byte encoding characters; | |
3355 | if this is the case, either returns false or, if C<fail_ok> is not | |
3356 | true, croaks. | |
3357 | ||
3358 | =cut | |
3359 | */ | |
3360 | ||
560a288e GS |
3361 | bool |
3362 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3363 | { | |
3364 | if (SvPOK(sv) && SvUTF8(sv)) { | |
fa301091 | 3365 | if (SvCUR(sv)) { |
03cfe0ae | 3366 | U8 *s; |
652088fc | 3367 | STRLEN len; |
fa301091 | 3368 | |
652088fc JH |
3369 | if (SvREADONLY(sv) && SvFAKE(sv)) |
3370 | sv_force_normal(sv); | |
03cfe0ae NIS |
3371 | s = (U8 *) SvPV(sv, len); |
3372 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3373 | if (fail_ok) |
3374 | return FALSE; | |
03cfe0ae | 3375 | #ifdef USE_BYTES_DOWNGRADES |
0064a8a9 | 3376 | else if (IN_BYTES) { |
03cfe0ae NIS |
3377 | U8 *d = s; |
3378 | U8 *e = (U8 *) SvEND(sv); | |
3379 | int first = 1; | |
3380 | while (s < e) { | |
3381 | UV ch = utf8n_to_uvchr(s,(e-s),&len,0); | |
3382 | if (first && ch > 255) { | |
3383 | if (PL_op) | |
3384 | Perl_warner(aTHX_ WARN_UTF8, "Wide character in byte %s", | |
53e06cf0 | 3385 | OP_DESC(PL_op); |
03cfe0ae NIS |
3386 | else |
3387 | Perl_warner(aTHX_ WARN_UTF8, "Wide character in byte"); | |
3388 | first = 0; | |
3389 | } | |
3390 | *d++ = ch; | |
3391 | s += len; | |
3392 | } | |
3393 | *d = '\0'; | |
3394 | len = (d - (U8 *) SvPVX(sv)); | |
3395 | } | |
3396 | #endif | |
fa301091 JH |
3397 | else { |
3398 | if (PL_op) | |
3399 | Perl_croak(aTHX_ "Wide character in %s", | |
53e06cf0 | 3400 | OP_DESC(PL_op)); |
fa301091 JH |
3401 | else |
3402 | Perl_croak(aTHX_ "Wide character"); | |
3403 | } | |
4b3603a4 | 3404 | } |
fa301091 | 3405 | SvCUR(sv) = len; |
67e989fb | 3406 | } |
560a288e | 3407 | } |
ffebcc3e | 3408 | SvUTF8_off(sv); |
560a288e GS |
3409 | return TRUE; |
3410 | } | |
3411 | ||
c461cf8f JH |
3412 | /* |
3413 | =for apidoc sv_utf8_encode | |
3414 | ||
3415 | Convert the PV of an SV to UTF8-encoded, but then turn off the C<SvUTF8> | |
4411f3b6 NIS |
3416 | flag so that it looks like octets again. Used as a building block |
3417 | for encode_utf8 in Encode.xs | |
c461cf8f JH |
3418 | |
3419 | =cut | |
3420 | */ | |
3421 | ||
560a288e GS |
3422 | void |
3423 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3424 | { | |
4411f3b6 | 3425 | (void) sv_utf8_upgrade(sv); |
560a288e GS |
3426 | SvUTF8_off(sv); |
3427 | } | |
3428 | ||
4411f3b6 NIS |
3429 | /* |
3430 | =for apidoc sv_utf8_decode | |
3431 | ||
3432 | Convert the octets in the PV from UTF-8 to chars. Scan for validity and then | |
645c22ef | 3433 | turn off SvUTF8 if needed so that we see characters. Used as a building block |
4411f3b6 NIS |
3434 | for decode_utf8 in Encode.xs |
3435 | ||
3436 | =cut | |
3437 | */ | |
3438 | ||
560a288e GS |
3439 | bool |
3440 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3441 | { | |
3442 | if (SvPOK(sv)) { | |
63cd0674 NIS |
3443 | U8 *c; |
3444 | U8 *e; | |
9cbac4c7 | 3445 | |
645c22ef DM |
3446 | /* The octets may have got themselves encoded - get them back as |
3447 | * bytes | |
3448 | */ | |
3449 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3450 | return FALSE; |
3451 | ||
3452 | /* it is actually just a matter of turning the utf8 flag on, but | |
3453 | * we want to make sure everything inside is valid utf8 first. | |
3454 | */ | |
63cd0674 NIS |
3455 | c = (U8 *) SvPVX(sv); |
3456 | if (!is_utf8_string(c, SvCUR(sv)+1)) | |
67e989fb | 3457 | return FALSE; |
63cd0674 | 3458 | e = (U8 *) SvEND(sv); |
511c2ff0 | 3459 | while (c < e) { |
c4d5f83a NIS |
3460 | U8 ch = *c++; |
3461 | if (!UTF8_IS_INVARIANT(ch)) { | |
67e989fb JH |
3462 | SvUTF8_on(sv); |
3463 | break; | |
3464 | } | |
560a288e | 3465 | } |
560a288e GS |
3466 | } |
3467 | return TRUE; | |
3468 | } | |
3469 | ||
954c1994 GS |
3470 | /* |
3471 | =for apidoc sv_setsv | |
3472 | ||
645c22ef DM |
3473 | Copies the contents of the source SV C<ssv> into the destination SV |
3474 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3475 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3476 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3477 | content of the destination. | |
3478 | ||
3479 | You probably want to use one of the assortment of wrappers, such as | |
3480 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3481 | C<SvSetMagicSV_nosteal>. | |
3482 | ||
954c1994 GS |
3483 | |
3484 | =cut | |
3485 | */ | |
3486 | ||
8d6d96c1 HS |
3487 | /* sv_setsv() is aliased to Perl_sv_setsv_macro; this function provided |
3488 | for binary compatibility only | |
3489 | */ | |
79072805 | 3490 | void |
864dbfa3 | 3491 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) |
79072805 | 3492 | { |
8d6d96c1 HS |
3493 | sv_setsv_flags(dstr, sstr, SV_GMAGIC); |
3494 | } | |
3495 | ||
3496 | /* | |
3497 | =for apidoc sv_setsv_flags | |
3498 | ||
645c22ef DM |
3499 | Copies the contents of the source SV C<ssv> into the destination SV |
3500 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3501 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3502 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3503 | content of the destination. | |
3504 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
3505 | C<ssv> if appropriate, else not. C<sv_setsv> and C<sv_setsv_nomg> are | |
3506 | implemented in terms of this function. | |
3507 | ||
3508 | You probably want to use one of the assortment of wrappers, such as | |
3509 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3510 | C<SvSetMagicSV_nosteal>. | |
3511 | ||
3512 | This is the primary function for copying scalars, and most other | |
3513 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3514 | |
3515 | =cut | |
3516 | */ | |
3517 | ||
3518 | void | |
3519 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3520 | { | |
8990e307 LW |
3521 | register U32 sflags; |
3522 | register int dtype; | |
3523 | register int stype; | |
463ee0b2 | 3524 | |
79072805 LW |
3525 | if (sstr == dstr) |
3526 | return; | |
2213622d | 3527 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 3528 | if (!sstr) |
3280af22 | 3529 | sstr = &PL_sv_undef; |
8990e307 LW |
3530 | stype = SvTYPE(sstr); |
3531 | dtype = SvTYPE(dstr); | |
79072805 | 3532 | |
a0d0e21e | 3533 | SvAMAGIC_off(dstr); |
9e7bc3e8 | 3534 | |
463ee0b2 | 3535 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3536 | |
8990e307 | 3537 | switch (stype) { |
79072805 | 3538 | case SVt_NULL: |
aece5585 | 3539 | undef_sstr: |
20408e3c GS |
3540 | if (dtype != SVt_PVGV) { |
3541 | (void)SvOK_off(dstr); | |
3542 | return; | |
3543 | } | |
3544 | break; | |
463ee0b2 | 3545 | case SVt_IV: |
aece5585 GA |
3546 | if (SvIOK(sstr)) { |
3547 | switch (dtype) { | |
3548 | case SVt_NULL: | |
8990e307 | 3549 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3550 | break; |
3551 | case SVt_NV: | |
8990e307 | 3552 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3553 | break; |
3554 | case SVt_RV: | |
3555 | case SVt_PV: | |
a0d0e21e | 3556 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3557 | break; |
3558 | } | |
3559 | (void)SvIOK_only(dstr); | |
3560 | SvIVX(dstr) = SvIVX(sstr); | |
25da4f38 IZ |
3561 | if (SvIsUV(sstr)) |
3562 | SvIsUV_on(dstr); | |
27c9684d AP |
3563 | if (SvTAINTED(sstr)) |
3564 | SvTAINT(dstr); | |
aece5585 | 3565 | return; |
8990e307 | 3566 | } |
aece5585 GA |
3567 | goto undef_sstr; |
3568 | ||
463ee0b2 | 3569 | case SVt_NV: |
aece5585 GA |
3570 | if (SvNOK(sstr)) { |
3571 | switch (dtype) { | |
3572 | case SVt_NULL: | |
3573 | case SVt_IV: | |
8990e307 | 3574 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3575 | break; |
3576 | case SVt_RV: | |
3577 | case SVt_PV: | |
3578 | case SVt_PVIV: | |
a0d0e21e | 3579 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3580 | break; |
3581 | } | |
3582 | SvNVX(dstr) = SvNVX(sstr); | |
3583 | (void)SvNOK_only(dstr); | |
27c9684d AP |
3584 | if (SvTAINTED(sstr)) |
3585 | SvTAINT(dstr); | |
aece5585 | 3586 | return; |
8990e307 | 3587 | } |
aece5585 GA |
3588 | goto undef_sstr; |
3589 | ||
ed6116ce | 3590 | case SVt_RV: |
8990e307 | 3591 | if (dtype < SVt_RV) |
ed6116ce | 3592 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3593 | else if (dtype == SVt_PVGV && |
3594 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { | |
3595 | sstr = SvRV(sstr); | |
a5f75d66 | 3596 | if (sstr == dstr) { |
1d7c1841 GS |
3597 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3598 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3599 | { | |
a5f75d66 | 3600 | GvIMPORTED_on(dstr); |
1d7c1841 | 3601 | } |
a5f75d66 AD |
3602 | GvMULTI_on(dstr); |
3603 | return; | |
3604 | } | |
c07a80fd | 3605 | goto glob_assign; |
3606 | } | |
ed6116ce | 3607 | break; |
463ee0b2 | 3608 | case SVt_PV: |
fc36a67e | 3609 | case SVt_PVFM: |
8990e307 | 3610 | if (dtype < SVt_PV) |
463ee0b2 | 3611 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3612 | break; |
3613 | case SVt_PVIV: | |
8990e307 | 3614 | if (dtype < SVt_PVIV) |
463ee0b2 | 3615 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3616 | break; |
3617 | case SVt_PVNV: | |
8990e307 | 3618 | if (dtype < SVt_PVNV) |
463ee0b2 | 3619 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3620 | break; |
4633a7c4 LW |
3621 | case SVt_PVAV: |
3622 | case SVt_PVHV: | |
3623 | case SVt_PVCV: | |
4633a7c4 | 3624 | case SVt_PVIO: |
533c011a | 3625 | if (PL_op) |
cea2e8a9 | 3626 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
53e06cf0 | 3627 | OP_NAME(PL_op)); |
4633a7c4 | 3628 | else |
cea2e8a9 | 3629 | Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); |
4633a7c4 LW |
3630 | break; |
3631 | ||
79072805 | 3632 | case SVt_PVGV: |
8990e307 | 3633 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3634 | glob_assign: |
a5f75d66 | 3635 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
3636 | char *name = GvNAME(sstr); |
3637 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 3638 | sv_upgrade(dstr, SVt_PVGV); |
14befaf4 | 3639 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 3640 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
3641 | GvNAME(dstr) = savepvn(name, len); |
3642 | GvNAMELEN(dstr) = len; | |
3643 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3644 | } | |
7bac28a0 | 3645 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3646 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3647 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3648 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3649 | GvNAME(dstr)); |
5bd07a3d | 3650 | |
7fb37951 AMS |
3651 | #ifdef GV_UNIQUE_CHECK |
3652 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3653 | Perl_croak(aTHX_ PL_no_modify); |
3654 | } | |
3655 | #endif | |
3656 | ||
a0d0e21e | 3657 | (void)SvOK_off(dstr); |
a5f75d66 | 3658 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3659 | gp_free((GV*)dstr); |
79072805 | 3660 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3661 | if (SvTAINTED(sstr)) |
3662 | SvTAINT(dstr); | |
1d7c1841 GS |
3663 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3664 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3665 | { | |
a5f75d66 | 3666 | GvIMPORTED_on(dstr); |
1d7c1841 | 3667 | } |
a5f75d66 | 3668 | GvMULTI_on(dstr); |
79072805 LW |
3669 | return; |
3670 | } | |
3671 | /* FALL THROUGH */ | |
3672 | ||
3673 | default: | |
8d6d96c1 | 3674 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab CS |
3675 | mg_get(sstr); |
3676 | if (SvTYPE(sstr) != stype) { | |
3677 | stype = SvTYPE(sstr); | |
3678 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3679 | goto glob_assign; | |
3680 | } | |
3681 | } | |
ded42b9f | 3682 | if (stype == SVt_PVLV) |
6fc92669 | 3683 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3684 | else |
6fc92669 | 3685 | (void)SvUPGRADE(dstr, stype); |
79072805 LW |
3686 | } |
3687 | ||
8990e307 LW |
3688 | sflags = SvFLAGS(sstr); |
3689 | ||
3690 | if (sflags & SVf_ROK) { | |
3691 | if (dtype >= SVt_PV) { | |
3692 | if (dtype == SVt_PVGV) { | |
3693 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3694 | SV *dref = 0; | |
a5f75d66 | 3695 | int intro = GvINTRO(dstr); |
a0d0e21e | 3696 | |
7fb37951 AMS |
3697 | #ifdef GV_UNIQUE_CHECK |
3698 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3699 | Perl_croak(aTHX_ PL_no_modify); |
3700 | } | |
3701 | #endif | |
3702 | ||
a0d0e21e | 3703 | if (intro) { |
a5f75d66 | 3704 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3705 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3706 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3707 | } |
a5f75d66 | 3708 | GvMULTI_on(dstr); |
8990e307 LW |
3709 | switch (SvTYPE(sref)) { |
3710 | case SVt_PVAV: | |
a0d0e21e LW |
3711 | if (intro) |
3712 | SAVESPTR(GvAV(dstr)); | |
3713 | else | |
3714 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3715 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3716 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3717 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3718 | { | |
a5f75d66 | 3719 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3720 | } |
8990e307 LW |
3721 | break; |
3722 | case SVt_PVHV: | |
a0d0e21e LW |
3723 | if (intro) |
3724 | SAVESPTR(GvHV(dstr)); | |
3725 | else | |
3726 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3727 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3728 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3729 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3730 | { | |
a5f75d66 | 3731 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3732 | } |
8990e307 LW |
3733 | break; |
3734 | case SVt_PVCV: | |
8ebc5c01 | 3735 | if (intro) { |
3736 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3737 | SvREFCNT_dec(GvCV(dstr)); | |
3738 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3739 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3740 | PL_sub_generation++; |
8ebc5c01 | 3741 | } |
a0d0e21e | 3742 | SAVESPTR(GvCV(dstr)); |
8ebc5c01 | 3743 | } |
68dc0745 | 3744 | else |
3745 | dref = (SV*)GvCV(dstr); | |
3746 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3747 | CV* cv = GvCV(dstr); |
4633a7c4 | 3748 | if (cv) { |
68dc0745 | 3749 | if (!GvCVGEN((GV*)dstr) && |
3750 | (CvROOT(cv) || CvXSUB(cv))) | |
3751 | { | |
7bac28a0 | 3752 | /* ahem, death to those who redefine |
3753 | * active sort subs */ | |
3280af22 NIS |
3754 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
3755 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 3756 | Perl_croak(aTHX_ |
7bac28a0 | 3757 | "Can't redefine active sort subroutine %s", |
3758 | GvENAME((GV*)dstr)); | |
beab0874 JT |
3759 | /* Redefining a sub - warning is mandatory if |
3760 | it was a const and its value changed. */ | |
3761 | if (ckWARN(WARN_REDEFINE) | |
3762 | || (CvCONST(cv) | |
3763 | && (!CvCONST((CV*)sref) | |
3764 | || sv_cmp(cv_const_sv(cv), | |
3765 | cv_const_sv((CV*)sref))))) | |
3766 | { | |
3767 | Perl_warner(aTHX_ WARN_REDEFINE, | |
3768 | CvCONST(cv) | |
3769 | ? "Constant subroutine %s redefined" | |
47deb5e7 | 3770 | : "Subroutine %s redefined", |
beab0874 JT |
3771 | GvENAME((GV*)dstr)); |
3772 | } | |
9607fc9c | 3773 | } |
3fe9a6f1 | 3774 | cv_ckproto(cv, (GV*)dstr, |
3775 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 3776 | } |
a5f75d66 | 3777 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 3778 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 3779 | GvASSUMECV_on(dstr); |
3280af22 | 3780 | PL_sub_generation++; |
a5f75d66 | 3781 | } |
39bac7f7 | 3782 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
3783 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3784 | { | |
a5f75d66 | 3785 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 3786 | } |
8990e307 | 3787 | break; |
91bba347 LW |
3788 | case SVt_PVIO: |
3789 | if (intro) | |
3790 | SAVESPTR(GvIOp(dstr)); | |
3791 | else | |
3792 | dref = (SV*)GvIOp(dstr); | |
3793 | GvIOp(dstr) = (IO*)sref; | |
3794 | break; | |
f4d13ee9 JH |
3795 | case SVt_PVFM: |
3796 | if (intro) | |
3797 | SAVESPTR(GvFORM(dstr)); | |
3798 | else | |
3799 | dref = (SV*)GvFORM(dstr); | |
3800 | GvFORM(dstr) = (CV*)sref; | |
3801 | break; | |
8990e307 | 3802 | default: |
a0d0e21e LW |
3803 | if (intro) |
3804 | SAVESPTR(GvSV(dstr)); | |
3805 | else | |
3806 | dref = (SV*)GvSV(dstr); | |
8990e307 | 3807 | GvSV(dstr) = sref; |
39bac7f7 | 3808 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
3809 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3810 | { | |
a5f75d66 | 3811 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 3812 | } |
8990e307 LW |
3813 | break; |
3814 | } | |
3815 | if (dref) | |
3816 | SvREFCNT_dec(dref); | |
a0d0e21e LW |
3817 | if (intro) |
3818 | SAVEFREESV(sref); | |
27c9684d AP |
3819 | if (SvTAINTED(sstr)) |
3820 | SvTAINT(dstr); | |
8990e307 LW |
3821 | return; |
3822 | } | |
a0d0e21e | 3823 | if (SvPVX(dstr)) { |
760ac839 | 3824 | (void)SvOOK_off(dstr); /* backoff */ |
50483b2c JD |
3825 | if (SvLEN(dstr)) |
3826 | Safefree(SvPVX(dstr)); | |
a0d0e21e LW |
3827 | SvLEN(dstr)=SvCUR(dstr)=0; |
3828 | } | |
8990e307 | 3829 | } |
a0d0e21e | 3830 | (void)SvOK_off(dstr); |
8990e307 | 3831 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 3832 | SvROK_on(dstr); |
8990e307 | 3833 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3834 | SvNOKp_on(dstr); |
3835 | /* Only set the public OK flag if the source has public OK. */ | |
3836 | if (sflags & SVf_NOK) | |
3837 | SvFLAGS(dstr) |= SVf_NOK; | |
ed6116ce LW |
3838 | SvNVX(dstr) = SvNVX(sstr); |
3839 | } | |
8990e307 | 3840 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3841 | (void)SvIOKp_on(dstr); |
3842 | if (sflags & SVf_IOK) | |
3843 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3844 | if (sflags & SVf_IVisUV) |
25da4f38 | 3845 | SvIsUV_on(dstr); |
3332b3c1 | 3846 | SvIVX(dstr) = SvIVX(sstr); |
ed6116ce | 3847 | } |
a0d0e21e LW |
3848 | if (SvAMAGIC(sstr)) { |
3849 | SvAMAGIC_on(dstr); | |
3850 | } | |
ed6116ce | 3851 | } |
8990e307 | 3852 | else if (sflags & SVp_POK) { |
79072805 LW |
3853 | |
3854 | /* | |
3855 | * Check to see if we can just swipe the string. If so, it's a | |
3856 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
3857 | * It might even be a win on short strings if SvPVX(dstr) |
3858 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
3859 | */ |
3860 | ||
ff68c719 | 3861 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 3862 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
1c846c1f | 3863 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ |
4c8f17b9 | 3864 | SvLEN(sstr) && /* and really is a string */ |
645c22ef DM |
3865 | /* and won't be needed again, potentially */ |
3866 | !(PL_op && PL_op->op_type == OP_AASSIGN)) | |
a5f75d66 | 3867 | { |
adbc6bb1 | 3868 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
3869 | if (SvOOK(dstr)) { |
3870 | SvFLAGS(dstr) &= ~SVf_OOK; | |
3871 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
3872 | } | |
50483b2c | 3873 | else if (SvLEN(dstr)) |
a5f75d66 | 3874 | Safefree(SvPVX(dstr)); |
79072805 | 3875 | } |
a5f75d66 | 3876 | (void)SvPOK_only(dstr); |
463ee0b2 | 3877 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
3878 | SvLEN_set(dstr, SvLEN(sstr)); |
3879 | SvCUR_set(dstr, SvCUR(sstr)); | |
f4e86e0f | 3880 | |
79072805 | 3881 | SvTEMP_off(dstr); |
645c22ef | 3882 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ |
79072805 LW |
3883 | SvPV_set(sstr, Nullch); |
3884 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
3885 | SvCUR_set(sstr, 0); |
3886 | SvTEMP_off(sstr); | |
79072805 | 3887 | } |
645c22ef | 3888 | else { /* have to copy actual string */ |
8990e307 LW |
3889 | STRLEN len = SvCUR(sstr); |
3890 | ||
645c22ef | 3891 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ |
8990e307 LW |
3892 | Move(SvPVX(sstr),SvPVX(dstr),len,char); |
3893 | SvCUR_set(dstr, len); | |
3894 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 3895 | (void)SvPOK_only(dstr); |
79072805 | 3896 | } |
9aa983d2 | 3897 | if (sflags & SVf_UTF8) |
a7cb1f99 | 3898 | SvUTF8_on(dstr); |
79072805 | 3899 | /*SUPPRESS 560*/ |
8990e307 | 3900 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3901 | SvNOKp_on(dstr); |
3902 | if (sflags & SVf_NOK) | |
3903 | SvFLAGS(dstr) |= SVf_NOK; | |
463ee0b2 | 3904 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 3905 | } |
8990e307 | 3906 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3907 | (void)SvIOKp_on(dstr); |
3908 | if (sflags & SVf_IOK) | |
3909 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3910 | if (sflags & SVf_IVisUV) |
25da4f38 | 3911 | SvIsUV_on(dstr); |
463ee0b2 | 3912 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
3913 | } |
3914 | } | |
8990e307 | 3915 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
3916 | if (sflags & SVf_IOK) |
3917 | (void)SvIOK_only(dstr); | |
3918 | else { | |
9cbac4c7 DM |
3919 | (void)SvOK_off(dstr); |
3920 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
3921 | } |
3922 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 3923 | if (sflags & SVf_IVisUV) |
25da4f38 | 3924 | SvIsUV_on(dstr); |
3332b3c1 JH |
3925 | SvIVX(dstr) = SvIVX(sstr); |
3926 | if (sflags & SVp_NOK) { | |
3927 | if (sflags & SVf_NOK) | |
3928 | (void)SvNOK_on(dstr); | |
3929 | else | |
3930 | (void)SvNOKp_on(dstr); | |
3931 | SvNVX(dstr) = SvNVX(sstr); | |
3932 | } | |
3933 | } | |
3934 | else if (sflags & SVp_NOK) { | |
3935 | if (sflags & SVf_NOK) | |
3936 | (void)SvNOK_only(dstr); | |
3937 | else { | |
9cbac4c7 | 3938 | (void)SvOK_off(dstr); |
3332b3c1 JH |
3939 | SvNOKp_on(dstr); |
3940 | } | |
3941 | SvNVX(dstr) = SvNVX(sstr); | |
79072805 LW |
3942 | } |
3943 | else { | |
20408e3c | 3944 | if (dtype == SVt_PVGV) { |
e476b1b5 GS |
3945 | if (ckWARN(WARN_MISC)) |
3946 | Perl_warner(aTHX_ WARN_MISC, "Undefined value assigned to typeglob"); | |
20408e3c GS |
3947 | } |
3948 | else | |
3949 | (void)SvOK_off(dstr); | |
a0d0e21e | 3950 | } |
27c9684d AP |
3951 | if (SvTAINTED(sstr)) |
3952 | SvTAINT(dstr); | |
79072805 LW |
3953 | } |
3954 | ||
954c1994 GS |
3955 | /* |
3956 | =for apidoc sv_setsv_mg | |
3957 | ||
3958 | Like C<sv_setsv>, but also handles 'set' magic. | |
3959 | ||
3960 | =cut | |
3961 | */ | |
3962 | ||
79072805 | 3963 | void |
864dbfa3 | 3964 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
3965 | { |
3966 | sv_setsv(dstr,sstr); | |
3967 | SvSETMAGIC(dstr); | |
3968 | } | |
3969 | ||
954c1994 GS |
3970 | /* |
3971 | =for apidoc sv_setpvn | |
3972 | ||
3973 | Copies a string into an SV. The C<len> parameter indicates the number of | |
3974 | bytes to be copied. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
3975 | ||
3976 | =cut | |
3977 | */ | |
3978 | ||
ef50df4b | 3979 | void |
864dbfa3 | 3980 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 3981 | { |
c6f8c383 | 3982 | register char *dptr; |
22c522df | 3983 | |
2213622d | 3984 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 3985 | if (!ptr) { |
a0d0e21e | 3986 | (void)SvOK_off(sv); |
463ee0b2 LW |
3987 | return; |
3988 | } | |
22c522df JH |
3989 | else { |
3990 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
3991 | IV iv = len; | |
9c5ffd7c JH |
3992 | if (iv < 0) |
3993 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 3994 | } |
6fc92669 | 3995 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 3996 | |
79072805 | 3997 | SvGROW(sv, len + 1); |
c6f8c383 GA |
3998 | dptr = SvPVX(sv); |
3999 | Move(ptr,dptr,len,char); | |
4000 | dptr[len] = '\0'; | |
79072805 | 4001 | SvCUR_set(sv, len); |
1aa99e6b | 4002 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4003 | SvTAINT(sv); |
79072805 LW |
4004 | } |
4005 | ||
954c1994 GS |
4006 | /* |
4007 | =for apidoc sv_setpvn_mg | |
4008 | ||
4009 | Like C<sv_setpvn>, but also handles 'set' magic. | |
4010 | ||
4011 | =cut | |
4012 | */ | |
4013 | ||
79072805 | 4014 | void |
864dbfa3 | 4015 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4016 | { |
4017 | sv_setpvn(sv,ptr,len); | |
4018 | SvSETMAGIC(sv); | |
4019 | } | |
4020 | ||
954c1994 GS |
4021 | /* |
4022 | =for apidoc sv_setpv | |
4023 | ||
4024 | Copies a string into an SV. The string must be null-terminated. Does not | |
4025 | handle 'set' magic. See C<sv_setpv_mg>. | |
4026 | ||
4027 | =cut | |
4028 | */ | |
4029 | ||
ef50df4b | 4030 | void |
864dbfa3 | 4031 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4032 | { |
4033 | register STRLEN len; | |
4034 | ||
2213622d | 4035 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4036 | if (!ptr) { |
a0d0e21e | 4037 | (void)SvOK_off(sv); |
463ee0b2 LW |
4038 | return; |
4039 | } | |
79072805 | 4040 | len = strlen(ptr); |
6fc92669 | 4041 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4042 | |
79072805 | 4043 | SvGROW(sv, len + 1); |
463ee0b2 | 4044 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4045 | SvCUR_set(sv, len); |
1aa99e6b | 4046 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4047 | SvTAINT(sv); |
4048 | } | |
4049 | ||
954c1994 GS |
4050 | /* |
4051 | =for apidoc sv_setpv_mg | |
4052 | ||
4053 | Like C<sv_setpv>, but also handles 'set' magic. | |
4054 | ||
4055 | =cut | |
4056 | */ | |
4057 | ||
463ee0b2 | 4058 | void |
864dbfa3 | 4059 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4060 | { |
4061 | sv_setpv(sv,ptr); | |
4062 | SvSETMAGIC(sv); | |
4063 | } | |
4064 | ||
954c1994 GS |
4065 | /* |
4066 | =for apidoc sv_usepvn | |
4067 | ||
4068 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4069 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4070 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4071 | string length, C<len>, must be supplied. This function will realloc the | |
4072 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4073 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4074 | See C<sv_usepvn_mg>. | |
4075 | ||
4076 | =cut | |
4077 | */ | |
4078 | ||
ef50df4b | 4079 | void |
864dbfa3 | 4080 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4081 | { |
2213622d | 4082 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 4083 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4084 | if (!ptr) { |
a0d0e21e | 4085 | (void)SvOK_off(sv); |
463ee0b2 LW |
4086 | return; |
4087 | } | |
a0ed51b3 | 4088 | (void)SvOOK_off(sv); |
50483b2c | 4089 | if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 LW |
4090 | Safefree(SvPVX(sv)); |
4091 | Renew(ptr, len+1, char); | |
4092 | SvPVX(sv) = ptr; | |
4093 | SvCUR_set(sv, len); | |
4094 | SvLEN_set(sv, len+1); | |
4095 | *SvEND(sv) = '\0'; | |
1aa99e6b | 4096 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4097 | SvTAINT(sv); |
79072805 LW |
4098 | } |
4099 | ||
954c1994 GS |
4100 | /* |
4101 | =for apidoc sv_usepvn_mg | |
4102 | ||
4103 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4104 | ||
4105 | =cut | |
4106 | */ | |
4107 | ||
ef50df4b | 4108 | void |
864dbfa3 | 4109 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4110 | { |
51c1089b | 4111 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4112 | SvSETMAGIC(sv); |
4113 | } | |
4114 | ||
645c22ef DM |
4115 | /* |
4116 | =for apidoc sv_force_normal_flags | |
4117 | ||
4118 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4119 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4120 | an xpvmg. The C<flags> parameter gets passed to C<sv_unref_flags()> | |
4121 | when unrefing. C<sv_force_normal> calls this function with flags set to 0. | |
4122 | ||
4123 | =cut | |
4124 | */ | |
4125 | ||
6fc92669 | 4126 | void |
840a7b70 | 4127 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4128 | { |
2213622d | 4129 | if (SvREADONLY(sv)) { |
1c846c1f NIS |
4130 | if (SvFAKE(sv)) { |
4131 | char *pvx = SvPVX(sv); | |
4132 | STRLEN len = SvCUR(sv); | |
4133 | U32 hash = SvUVX(sv); | |
4134 | SvGROW(sv, len + 1); | |
4135 | Move(pvx,SvPVX(sv),len,char); | |
4136 | *SvEND(sv) = '\0'; | |
4137 | SvFAKE_off(sv); | |
4138 | SvREADONLY_off(sv); | |
25716404 | 4139 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)len : len, hash); |
1c846c1f NIS |
4140 | } |
4141 | else if (PL_curcop != &PL_compiling) | |
cea2e8a9 | 4142 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4143 | } |
2213622d | 4144 | if (SvROK(sv)) |
840a7b70 | 4145 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4146 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4147 | sv_unglob(sv); | |
0f15f207 | 4148 | } |
1c846c1f | 4149 | |
645c22ef DM |
4150 | /* |
4151 | =for apidoc sv_force_normal | |
4152 | ||
4153 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4154 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4155 | an xpvmg. See also C<sv_force_normal_flags>. | |
4156 | ||
4157 | =cut | |
4158 | */ | |
4159 | ||
840a7b70 IZ |
4160 | void |
4161 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4162 | { | |
4163 | sv_force_normal_flags(sv, 0); | |
4164 | } | |
4165 | ||
954c1994 GS |
4166 | /* |
4167 | =for apidoc sv_chop | |
4168 | ||
1c846c1f | 4169 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4170 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4171 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4172 | string. Uses the "OOK hack". |
954c1994 GS |
4173 | |
4174 | =cut | |
4175 | */ | |
4176 | ||
79072805 | 4177 | void |
645c22ef | 4178 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
4179 | { |
4180 | register STRLEN delta; | |
4181 | ||
a0d0e21e | 4182 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4183 | return; |
2213622d | 4184 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4185 | if (SvTYPE(sv) < SVt_PVIV) |
4186 | sv_upgrade(sv,SVt_PVIV); | |
4187 | ||
4188 | if (!SvOOK(sv)) { | |
50483b2c JD |
4189 | if (!SvLEN(sv)) { /* make copy of shared string */ |
4190 | char *pvx = SvPVX(sv); | |
4191 | STRLEN len = SvCUR(sv); | |
4192 | SvGROW(sv, len + 1); | |
4193 | Move(pvx,SvPVX(sv),len,char); | |
4194 | *SvEND(sv) = '\0'; | |
4195 | } | |
463ee0b2 | 4196 | SvIVX(sv) = 0; |
79072805 LW |
4197 | SvFLAGS(sv) |= SVf_OOK; |
4198 | } | |
25da4f38 | 4199 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV); |
463ee0b2 | 4200 | delta = ptr - SvPVX(sv); |
79072805 LW |
4201 | SvLEN(sv) -= delta; |
4202 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
4203 | SvPVX(sv) += delta; |
4204 | SvIVX(sv) += delta; | |
79072805 LW |
4205 | } |
4206 | ||
954c1994 GS |
4207 | /* |
4208 | =for apidoc sv_catpvn | |
4209 | ||
4210 | Concatenates the string onto the end of the string which is in the SV. The | |
d5ce4a7c GA |
4211 | C<len> indicates number of bytes to copy. If the SV has the UTF8 |
4212 | status set, then the bytes appended should be valid UTF8. | |
4213 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. | |
954c1994 GS |
4214 | |
4215 | =cut | |
4216 | */ | |
4217 | ||
8d6d96c1 HS |
4218 | /* sv_catpvn() is aliased to Perl_sv_catpvn_macro; this function provided |
4219 | for binary compatibility only | |
4220 | */ | |
79072805 | 4221 | void |
8d6d96c1 | 4222 | Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen) |
79072805 | 4223 | { |
8d6d96c1 HS |
4224 | sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC); |
4225 | } | |
a0d0e21e | 4226 | |
8d6d96c1 HS |
4227 | /* |
4228 | =for apidoc sv_catpvn_flags | |
4229 | ||
4230 | Concatenates the string onto the end of the string which is in the SV. The | |
4231 | C<len> indicates number of bytes to copy. If the SV has the UTF8 | |
4232 | status set, then the bytes appended should be valid UTF8. | |
4233 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if | |
4234 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4235 | in terms of this function. | |
4236 | ||
4237 | =cut | |
4238 | */ | |
4239 | ||
4240 | void | |
4241 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4242 | { | |
4243 | STRLEN dlen; | |
4244 | char *dstr; | |
4245 | ||
4246 | dstr = SvPV_force_flags(dsv, dlen, flags); | |
4247 | SvGROW(dsv, dlen + slen + 1); | |
4248 | if (sstr == dstr) | |
4249 | sstr = SvPVX(dsv); | |
4250 | Move(sstr, SvPVX(dsv) + dlen, slen, char); | |
4251 | SvCUR(dsv) += slen; | |
4252 | *SvEND(dsv) = '\0'; | |
4253 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4254 | SvTAINT(dsv); | |
79072805 LW |
4255 | } |
4256 | ||
954c1994 GS |
4257 | /* |
4258 | =for apidoc sv_catpvn_mg | |
4259 | ||
4260 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4261 | ||
4262 | =cut | |
4263 | */ | |
4264 | ||
79072805 | 4265 | void |
864dbfa3 | 4266 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4267 | { |
4268 | sv_catpvn(sv,ptr,len); | |
4269 | SvSETMAGIC(sv); | |
4270 | } | |
4271 | ||
954c1994 GS |
4272 | /* |
4273 | =for apidoc sv_catsv | |
4274 | ||
13e8c8e3 JH |
4275 | Concatenates the string from SV C<ssv> onto the end of the string in |
4276 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4277 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4278 | |
13e8c8e3 | 4279 | =cut */ |
954c1994 | 4280 | |
8d6d96c1 HS |
4281 | /* sv_catsv() is aliased to Perl_sv_catsv_macro; this function provided |
4282 | for binary compatibility only | |
4283 | */ | |
4284 | void | |
4285 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) | |
4286 | { | |
4287 | sv_catsv_flags(dstr, sstr, SV_GMAGIC); | |
4288 | } | |
4289 | ||
4290 | /* | |
4291 | =for apidoc sv_catsv_flags | |
4292 | ||
4293 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4294 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4295 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4296 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4297 | ||
4298 | =cut */ | |
4299 | ||
ef50df4b | 4300 | void |
8d6d96c1 | 4301 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4302 | { |
13e8c8e3 JH |
4303 | char *spv; |
4304 | STRLEN slen; | |
46199a12 | 4305 | if (!ssv) |
79072805 | 4306 | return; |
46199a12 | 4307 | if ((spv = SvPV(ssv, slen))) { |
4fd84b44 AD |
4308 | /* sutf8 and dutf8 were type bool, but under USE_ITHREADS, |
4309 | gcc version 2.95.2 20000220 (Debian GNU/Linux) for | |
8cf8f3d1 NIS |
4310 | Linux xxx 2.2.17 on sparc64 with gcc -O2, we erroneously |
4311 | get dutf8 = 0x20000000, (i.e. SVf_UTF8) even though | |
4fd84b44 AD |
4312 | dsv->sv_flags doesn't have that bit set. |
4313 | Andy Dougherty 12 Oct 2001 | |
4314 | */ | |
4315 | I32 sutf8 = DO_UTF8(ssv); | |
4316 | I32 dutf8; | |
13e8c8e3 | 4317 | |
8d6d96c1 HS |
4318 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4319 | mg_get(dsv); | |
4320 | dutf8 = DO_UTF8(dsv); | |
4321 | ||
4322 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4323 | if (dutf8) { |
46199a12 | 4324 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4325 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4326 | |
46199a12 | 4327 | sv_utf8_upgrade(csv); |
8d6d96c1 | 4328 | spv = SvPV(csv, slen); |
13e8c8e3 | 4329 | } |
8d6d96c1 HS |
4330 | else |
4331 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4332 | } |
8d6d96c1 | 4333 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4334 | } |
79072805 LW |
4335 | } |
4336 | ||
954c1994 GS |
4337 | /* |
4338 | =for apidoc sv_catsv_mg | |
4339 | ||
4340 | Like C<sv_catsv>, but also handles 'set' magic. | |
4341 | ||
4342 | =cut | |
4343 | */ | |
4344 | ||
79072805 | 4345 | void |
46199a12 | 4346 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4347 | { |
46199a12 JH |
4348 | sv_catsv(dsv,ssv); |
4349 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4350 | } |
4351 | ||
954c1994 GS |
4352 | /* |
4353 | =for apidoc sv_catpv | |
4354 | ||
4355 | Concatenates the string onto the end of the string which is in the SV. | |
d5ce4a7c GA |
4356 | If the SV has the UTF8 status set, then the bytes appended should be |
4357 | valid UTF8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4358 | |
d5ce4a7c | 4359 | =cut */ |
954c1994 | 4360 | |
ef50df4b | 4361 | void |
0c981600 | 4362 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4363 | { |
4364 | register STRLEN len; | |
463ee0b2 | 4365 | STRLEN tlen; |
748a9306 | 4366 | char *junk; |
79072805 | 4367 | |
0c981600 | 4368 | if (!ptr) |
79072805 | 4369 | return; |
748a9306 | 4370 | junk = SvPV_force(sv, tlen); |
0c981600 | 4371 | len = strlen(ptr); |
463ee0b2 | 4372 | SvGROW(sv, tlen + len + 1); |
0c981600 JH |
4373 | if (ptr == junk) |
4374 | ptr = SvPVX(sv); | |
4375 | Move(ptr,SvPVX(sv)+tlen,len+1,char); | |
79072805 | 4376 | SvCUR(sv) += len; |
d41ff1b8 | 4377 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4378 | SvTAINT(sv); |
79072805 LW |
4379 | } |
4380 | ||
954c1994 GS |
4381 | /* |
4382 | =for apidoc sv_catpv_mg | |
4383 | ||
4384 | Like C<sv_catpv>, but also handles 'set' magic. | |
4385 | ||
4386 | =cut | |
4387 | */ | |
4388 | ||
ef50df4b | 4389 | void |
0c981600 | 4390 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4391 | { |
0c981600 | 4392 | sv_catpv(sv,ptr); |
ef50df4b GS |
4393 | SvSETMAGIC(sv); |
4394 | } | |
4395 | ||
645c22ef DM |
4396 | /* |
4397 | =for apidoc newSV | |
4398 | ||
4399 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4400 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4401 | macro. | |
4402 | ||
4403 | =cut | |
4404 | */ | |
4405 | ||
79072805 | 4406 | SV * |
864dbfa3 | 4407 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4408 | { |
4409 | register SV *sv; | |
1c846c1f | 4410 | |
4561caa4 | 4411 | new_SV(sv); |
79072805 LW |
4412 | if (len) { |
4413 | sv_upgrade(sv, SVt_PV); | |
4414 | SvGROW(sv, len + 1); | |
4415 | } | |
4416 | return sv; | |
4417 | } | |
4418 | ||
954c1994 GS |
4419 | /* |
4420 | =for apidoc sv_magic | |
4421 | ||
645c22ef DM |
4422 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4423 | then adds a new magic item of type C<how> to the head of the magic list. | |
4424 | ||
4425 | C<name> is assumed to contain an C<SV*> if C<(name && namelen == HEf_SVKEY)> | |
954c1994 GS |
4426 | |
4427 | =cut | |
4428 | */ | |
4429 | ||
79072805 | 4430 | void |
864dbfa3 | 4431 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) |
79072805 LW |
4432 | { |
4433 | MAGIC* mg; | |
1c846c1f | 4434 | |
0f15f207 | 4435 | if (SvREADONLY(sv)) { |
14befaf4 | 4436 | if (PL_curcop != &PL_compiling |
14befaf4 DM |
4437 | && how != PERL_MAGIC_regex_global |
4438 | && how != PERL_MAGIC_bm | |
4439 | && how != PERL_MAGIC_fm | |
6fa402ec | 4440 | && how != PERL_MAGIC_sv |
14befaf4 DM |
4441 | ) |
4442 | { | |
cea2e8a9 | 4443 | Perl_croak(aTHX_ PL_no_modify); |
14befaf4 | 4444 | } |
0f15f207 | 4445 | } |
14befaf4 | 4446 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { |
748a9306 | 4447 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { |
14befaf4 | 4448 | if (how == PERL_MAGIC_taint) |
565764a8 | 4449 | mg->mg_len |= 1; |
463ee0b2 | 4450 | return; |
748a9306 | 4451 | } |
463ee0b2 LW |
4452 | } |
4453 | else { | |
c6f8c383 | 4454 | (void)SvUPGRADE(sv, SVt_PVMG); |
463ee0b2 | 4455 | } |
79072805 LW |
4456 | Newz(702,mg, 1, MAGIC); |
4457 | mg->mg_moremagic = SvMAGIC(sv); | |
79072805 | 4458 | SvMAGIC(sv) = mg; |
75f9d97a | 4459 | |
18808301 | 4460 | /* Some magic sontains a reference loop, where the sv and object refer to |
bb03859b RS |
4461 | each other. To prevent a reference loop that would prevent such |
4462 | objects being freed, we look for such loops and if we find one we | |
4463 | avoid incrementing the object refcount. */ | |
14befaf4 DM |
4464 | if (!obj || obj == sv || |
4465 | how == PERL_MAGIC_arylen || | |
4466 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
4467 | (SvTYPE(obj) == SVt_PVGV && |
4468 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4469 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
4470 | GvFORM(obj) == (CV*)sv))) | |
4471 | { | |
8990e307 | 4472 | mg->mg_obj = obj; |
75f9d97a | 4473 | } |
85e6fe83 | 4474 | else { |
8990e307 | 4475 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4476 | mg->mg_flags |= MGf_REFCOUNTED; |
4477 | } | |
79072805 | 4478 | mg->mg_type = how; |
565764a8 | 4479 | mg->mg_len = namlen; |
9cbac4c7 | 4480 | if (name) { |
1edc1566 | 4481 | if (namlen >= 0) |
4482 | mg->mg_ptr = savepvn(name, namlen); | |
c6ee37c5 | 4483 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4484 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
9cbac4c7 | 4485 | } |
1c846c1f | 4486 | |
79072805 | 4487 | switch (how) { |
14befaf4 | 4488 | case PERL_MAGIC_sv: |
22c35a8c | 4489 | mg->mg_virtual = &PL_vtbl_sv; |
79072805 | 4490 | break; |
14befaf4 | 4491 | case PERL_MAGIC_overload: |
22c35a8c | 4492 | mg->mg_virtual = &PL_vtbl_amagic; |
a0d0e21e | 4493 | break; |
14befaf4 | 4494 | case PERL_MAGIC_overload_elem: |
22c35a8c | 4495 | mg->mg_virtual = &PL_vtbl_amagicelem; |
a0d0e21e | 4496 | break; |
14befaf4 | 4497 | case PERL_MAGIC_overload_table: |
d460ef45 | 4498 | mg->mg_virtual = &PL_vtbl_ovrld; |
a0d0e21e | 4499 | break; |
14befaf4 | 4500 | case PERL_MAGIC_bm: |
22c35a8c | 4501 | mg->mg_virtual = &PL_vtbl_bm; |
79072805 | 4502 | break; |
14befaf4 | 4503 | case PERL_MAGIC_regdata: |
22c35a8c | 4504 | mg->mg_virtual = &PL_vtbl_regdata; |
6cef1e77 | 4505 | break; |
14befaf4 | 4506 | case PERL_MAGIC_regdatum: |
22c35a8c | 4507 | mg->mg_virtual = &PL_vtbl_regdatum; |
6cef1e77 | 4508 | break; |
14befaf4 | 4509 | case PERL_MAGIC_env: |
22c35a8c | 4510 | mg->mg_virtual = &PL_vtbl_env; |
79072805 | 4511 | break; |
14befaf4 | 4512 | case PERL_MAGIC_fm: |
22c35a8c | 4513 | mg->mg_virtual = &PL_vtbl_fm; |
55497cff | 4514 | break; |
14befaf4 | 4515 | case PERL_MAGIC_envelem: |
22c35a8c | 4516 | mg->mg_virtual = &PL_vtbl_envelem; |
79072805 | 4517 | break; |
14befaf4 | 4518 | case PERL_MAGIC_regex_global: |
22c35a8c | 4519 | mg->mg_virtual = &PL_vtbl_mglob; |
93a17b20 | 4520 | break; |
14befaf4 | 4521 | case PERL_MAGIC_isa: |
22c35a8c | 4522 | mg->mg_virtual = &PL_vtbl_isa; |
463ee0b2 | 4523 | break; |
14befaf4 | 4524 | case PERL_MAGIC_isaelem: |
22c35a8c | 4525 | mg->mg_virtual = &PL_vtbl_isaelem; |
463ee0b2 | 4526 | break; |
14befaf4 | 4527 | case PERL_MAGIC_nkeys: |
22c35a8c | 4528 | mg->mg_virtual = &PL_vtbl_nkeys; |
16660edb | 4529 | break; |
14befaf4 | 4530 | case PERL_MAGIC_dbfile: |
a0d0e21e | 4531 | SvRMAGICAL_on(sv); |
93a17b20 LW |
4532 | mg->mg_virtual = 0; |
4533 | break; | |
14befaf4 | 4534 | case PERL_MAGIC_dbline: |
22c35a8c | 4535 | mg->mg_virtual = &PL_vtbl_dbline; |
79072805 | 4536 | break; |
4d1ff10f | 4537 | #ifdef USE_5005THREADS |
14befaf4 | 4538 | case PERL_MAGIC_mutex: |
22c35a8c | 4539 | mg->mg_virtual = &PL_vtbl_mutex; |
f93b4edd | 4540 | break; |
4d1ff10f | 4541 | #endif /* USE_5005THREADS */ |
36477c24 | 4542 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 4543 | case PERL_MAGIC_collxfrm: |
22c35a8c | 4544 | mg->mg_virtual = &PL_vtbl_collxfrm; |
bbce6d69 | 4545 | break; |
36477c24 | 4546 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 4547 | case PERL_MAGIC_tied: |
22c35a8c | 4548 | mg->mg_virtual = &PL_vtbl_pack; |
463ee0b2 | 4549 | break; |
14befaf4 DM |
4550 | case PERL_MAGIC_tiedelem: |
4551 | case PERL_MAGIC_tiedscalar: | |
22c35a8c | 4552 | mg->mg_virtual = &PL_vtbl_packelem; |
463ee0b2 | 4553 | break; |
14befaf4 | 4554 | case PERL_MAGIC_qr: |
22c35a8c | 4555 | mg->mg_virtual = &PL_vtbl_regexp; |
c277df42 | 4556 | break; |
14befaf4 | 4557 | case PERL_MAGIC_sig: |
22c35a8c | 4558 | mg->mg_virtual = &PL_vtbl_sig; |
79072805 | 4559 | break; |
14befaf4 | 4560 | case PERL_MAGIC_sigelem: |
22c35a8c | 4561 | mg->mg_virtual = &PL_vtbl_sigelem; |
79072805 | 4562 | break; |
14befaf4 | 4563 | case PERL_MAGIC_taint: |
22c35a8c | 4564 | mg->mg_virtual = &PL_vtbl_taint; |
565764a8 | 4565 | mg->mg_len = 1; |
463ee0b2 | 4566 | break; |
14befaf4 | 4567 | case PERL_MAGIC_uvar: |
22c35a8c | 4568 | mg->mg_virtual = &PL_vtbl_uvar; |
79072805 | 4569 | break; |
14befaf4 | 4570 | case PERL_MAGIC_vec: |
22c35a8c | 4571 | mg->mg_virtual = &PL_vtbl_vec; |
79072805 | 4572 | break; |
14befaf4 | 4573 | case PERL_MAGIC_substr: |
22c35a8c | 4574 | mg->mg_virtual = &PL_vtbl_substr; |
79072805 | 4575 | break; |
14befaf4 | 4576 | case PERL_MAGIC_defelem: |
22c35a8c | 4577 | mg->mg_virtual = &PL_vtbl_defelem; |
5f05dabc | 4578 | break; |
14befaf4 | 4579 | case PERL_MAGIC_glob: |
22c35a8c | 4580 | mg->mg_virtual = &PL_vtbl_glob; |
79072805 | 4581 | break; |
14befaf4 | 4582 | case PERL_MAGIC_arylen: |
22c35a8c | 4583 | mg->mg_virtual = &PL_vtbl_arylen; |
79072805 | 4584 | break; |
14befaf4 | 4585 | case PERL_MAGIC_pos: |
22c35a8c | 4586 | mg->mg_virtual = &PL_vtbl_pos; |
a0d0e21e | 4587 | break; |
14befaf4 | 4588 | case PERL_MAGIC_backref: |
810b8aa5 GS |
4589 | mg->mg_virtual = &PL_vtbl_backref; |
4590 | break; | |
14befaf4 DM |
4591 | case PERL_MAGIC_ext: |
4592 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
4593 | /* Useful for attaching extension internal data to perl vars. */ |
4594 | /* Note that multiple extensions may clash if magical scalars */ | |
4595 | /* etc holding private data from one are passed to another. */ | |
4596 | SvRMAGICAL_on(sv); | |
a0d0e21e | 4597 | break; |
79072805 | 4598 | default: |
14befaf4 | 4599 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 4600 | } |
8990e307 LW |
4601 | mg_magical(sv); |
4602 | if (SvGMAGICAL(sv)) | |
4603 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 LW |
4604 | } |
4605 | ||
c461cf8f JH |
4606 | /* |
4607 | =for apidoc sv_unmagic | |
4608 | ||
645c22ef | 4609 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
4610 | |
4611 | =cut | |
4612 | */ | |
4613 | ||
463ee0b2 | 4614 | int |
864dbfa3 | 4615 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
4616 | { |
4617 | MAGIC* mg; | |
4618 | MAGIC** mgp; | |
91bba347 | 4619 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
4620 | return 0; |
4621 | mgp = &SvMAGIC(sv); | |
4622 | for (mg = *mgp; mg; mg = *mgp) { | |
4623 | if (mg->mg_type == type) { | |
4624 | MGVTBL* vtbl = mg->mg_virtual; | |
4625 | *mgp = mg->mg_moremagic; | |
1d7c1841 | 4626 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 4627 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 4628 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
565764a8 | 4629 | if (mg->mg_len >= 0) |
1edc1566 | 4630 | Safefree(mg->mg_ptr); |
565764a8 | 4631 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 4632 | SvREFCNT_dec((SV*)mg->mg_ptr); |
9cbac4c7 | 4633 | } |
a0d0e21e LW |
4634 | if (mg->mg_flags & MGf_REFCOUNTED) |
4635 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
4636 | Safefree(mg); |
4637 | } | |
4638 | else | |
4639 | mgp = &mg->mg_moremagic; | |
79072805 | 4640 | } |
91bba347 | 4641 | if (!SvMAGIC(sv)) { |
463ee0b2 | 4642 | SvMAGICAL_off(sv); |
06759ea0 | 4643 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
4644 | } |
4645 | ||
4646 | return 0; | |
79072805 LW |
4647 | } |
4648 | ||
c461cf8f JH |
4649 | /* |
4650 | =for apidoc sv_rvweaken | |
4651 | ||
645c22ef DM |
4652 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
4653 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
4654 | push a back-reference to this RV onto the array of backreferences | |
4655 | associated with that magic. | |
c461cf8f JH |
4656 | |
4657 | =cut | |
4658 | */ | |
4659 | ||
810b8aa5 | 4660 | SV * |
864dbfa3 | 4661 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
4662 | { |
4663 | SV *tsv; | |
4664 | if (!SvOK(sv)) /* let undefs pass */ | |
4665 | return sv; | |
4666 | if (!SvROK(sv)) | |
cea2e8a9 | 4667 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 4668 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 4669 | if (ckWARN(WARN_MISC)) |
cea2e8a9 | 4670 | Perl_warner(aTHX_ WARN_MISC, "Reference is already weak"); |
810b8aa5 GS |
4671 | return sv; |
4672 | } | |
4673 | tsv = SvRV(sv); | |
4674 | sv_add_backref(tsv, sv); | |
4675 | SvWEAKREF_on(sv); | |
1c846c1f | 4676 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
4677 | return sv; |
4678 | } | |
4679 | ||
645c22ef DM |
4680 | /* Give tsv backref magic if it hasn't already got it, then push a |
4681 | * back-reference to sv onto the array associated with the backref magic. | |
4682 | */ | |
4683 | ||
810b8aa5 | 4684 | STATIC void |
cea2e8a9 | 4685 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
4686 | { |
4687 | AV *av; | |
4688 | MAGIC *mg; | |
14befaf4 | 4689 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
4690 | av = (AV*)mg->mg_obj; |
4691 | else { | |
4692 | av = newAV(); | |
14befaf4 | 4693 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
810b8aa5 GS |
4694 | SvREFCNT_dec(av); /* for sv_magic */ |
4695 | } | |
4696 | av_push(av,sv); | |
4697 | } | |
4698 | ||
645c22ef DM |
4699 | /* delete a back-reference to ourselves from the backref magic associated |
4700 | * with the SV we point to. | |
4701 | */ | |
4702 | ||
1c846c1f | 4703 | STATIC void |
cea2e8a9 | 4704 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
4705 | { |
4706 | AV *av; | |
4707 | SV **svp; | |
4708 | I32 i; | |
4709 | SV *tsv = SvRV(sv); | |
4710 | MAGIC *mg; | |
14befaf4 | 4711 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 4712 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
4713 | av = (AV *)mg->mg_obj; |
4714 | svp = AvARRAY(av); | |
4715 | i = AvFILLp(av); | |
4716 | while (i >= 0) { | |
4717 | if (svp[i] == sv) { | |
4718 | svp[i] = &PL_sv_undef; /* XXX */ | |
4719 | } | |
4720 | i--; | |
4721 | } | |
4722 | } | |
4723 | ||
954c1994 GS |
4724 | /* |
4725 | =for apidoc sv_insert | |
4726 | ||
4727 | Inserts a string at the specified offset/length within the SV. Similar to | |
4728 | the Perl substr() function. | |
4729 | ||
4730 | =cut | |
4731 | */ | |
4732 | ||
79072805 | 4733 | void |
864dbfa3 | 4734 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
4735 | { |
4736 | register char *big; | |
4737 | register char *mid; | |
4738 | register char *midend; | |
4739 | register char *bigend; | |
4740 | register I32 i; | |
6ff81951 | 4741 | STRLEN curlen; |
1c846c1f | 4742 | |
79072805 | 4743 | |
8990e307 | 4744 | if (!bigstr) |
cea2e8a9 | 4745 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 4746 | SvPV_force(bigstr, curlen); |
60fa28ff | 4747 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
4748 | if (offset + len > curlen) { |
4749 | SvGROW(bigstr, offset+len+1); | |
4750 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
4751 | SvCUR_set(bigstr, offset+len); | |
4752 | } | |
79072805 | 4753 | |
69b47968 | 4754 | SvTAINT(bigstr); |
79072805 LW |
4755 | i = littlelen - len; |
4756 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 4757 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
4758 | mid = big + offset + len; |
4759 | midend = bigend = big + SvCUR(bigstr); | |
4760 | bigend += i; | |
4761 | *bigend = '\0'; | |
4762 | while (midend > mid) /* shove everything down */ | |
4763 | *--bigend = *--midend; | |
4764 | Move(little,big+offset,littlelen,char); | |
4765 | SvCUR(bigstr) += i; | |
4766 | SvSETMAGIC(bigstr); | |
4767 | return; | |
4768 | } | |
4769 | else if (i == 0) { | |
463ee0b2 | 4770 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
4771 | SvSETMAGIC(bigstr); |
4772 | return; | |
4773 | } | |
4774 | ||
463ee0b2 | 4775 | big = SvPVX(bigstr); |
79072805 LW |
4776 | mid = big + offset; |
4777 | midend = mid + len; | |
4778 | bigend = big + SvCUR(bigstr); | |
4779 | ||
4780 | if (midend > bigend) | |
cea2e8a9 | 4781 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
4782 | |
4783 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
4784 | if (littlelen) { | |
4785 | Move(little, mid, littlelen,char); | |
4786 | mid += littlelen; | |
4787 | } | |
4788 | i = bigend - midend; | |
4789 | if (i > 0) { | |
4790 | Move(midend, mid, i,char); | |
4791 | mid += i; | |
4792 | } | |
4793 | *mid = '\0'; | |
4794 | SvCUR_set(bigstr, mid - big); | |
4795 | } | |
4796 | /*SUPPRESS 560*/ | |
155aba94 | 4797 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
4798 | midend -= littlelen; |
4799 | mid = midend; | |
4800 | sv_chop(bigstr,midend-i); | |
4801 | big += i; | |
4802 | while (i--) | |
4803 | *--midend = *--big; | |
4804 | if (littlelen) | |
4805 | Move(little, mid, littlelen,char); | |
4806 | } | |
4807 | else if (littlelen) { | |
4808 | midend -= littlelen; | |
4809 | sv_chop(bigstr,midend); | |
4810 | Move(little,midend,littlelen,char); | |
4811 | } | |
4812 | else { | |
4813 | sv_chop(bigstr,midend); | |
4814 | } | |
4815 | SvSETMAGIC(bigstr); | |
4816 | } | |
4817 | ||
c461cf8f JH |
4818 | /* |
4819 | =for apidoc sv_replace | |
4820 | ||
4821 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
4822 | The target SV physically takes over ownership of the body of the source SV |
4823 | and inherits its flags; however, the target keeps any magic it owns, | |
4824 | and any magic in the source is discarded. | |
ff276b08 | 4825 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 4826 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
4827 | |
4828 | =cut | |
4829 | */ | |
79072805 LW |
4830 | |
4831 | void | |
864dbfa3 | 4832 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 LW |
4833 | { |
4834 | U32 refcnt = SvREFCNT(sv); | |
2213622d | 4835 | SV_CHECK_THINKFIRST(sv); |
0453d815 PM |
4836 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
4837 | Perl_warner(aTHX_ WARN_INTERNAL, "Reference miscount in sv_replace()"); | |
93a17b20 | 4838 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
4839 | if (SvMAGICAL(nsv)) |
4840 | mg_free(nsv); | |
4841 | else | |
4842 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 4843 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 4844 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
4845 | SvMAGICAL_off(sv); |
4846 | SvMAGIC(sv) = 0; | |
4847 | } | |
79072805 LW |
4848 | SvREFCNT(sv) = 0; |
4849 | sv_clear(sv); | |
477f5d66 | 4850 | assert(!SvREFCNT(sv)); |
79072805 LW |
4851 | StructCopy(nsv,sv,SV); |
4852 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 4853 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
463ee0b2 | 4854 | del_SV(nsv); |
79072805 LW |
4855 | } |
4856 | ||
c461cf8f JH |
4857 | /* |
4858 | =for apidoc sv_clear | |
4859 | ||
645c22ef DM |
4860 | Clear an SV: call any destructors, free up any memory used by the body, |
4861 | and free the body itself. The SV's head is I<not> freed, although | |
4862 | its type is set to all 1's so that it won't inadvertently be assumed | |
4863 | to be live during global destruction etc. | |
4864 | This function should only be called when REFCNT is zero. Most of the time | |
4865 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
4866 | instead. | |
c461cf8f JH |
4867 | |
4868 | =cut | |
4869 | */ | |
4870 | ||
79072805 | 4871 | void |
864dbfa3 | 4872 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 4873 | { |
ec12f114 | 4874 | HV* stash; |
79072805 LW |
4875 | assert(sv); |
4876 | assert(SvREFCNT(sv) == 0); | |
4877 | ||
ed6116ce | 4878 | if (SvOBJECT(sv)) { |
3280af22 | 4879 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 4880 | dSP; |
32251b26 | 4881 | CV* destructor; |
837485b6 | 4882 | SV tmpref; |
a0d0e21e | 4883 | |
837485b6 GS |
4884 | Zero(&tmpref, 1, SV); |
4885 | sv_upgrade(&tmpref, SVt_RV); | |
4886 | SvROK_on(&tmpref); | |
4887 | SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ | |
4888 | SvREFCNT(&tmpref) = 1; | |
8ebc5c01 | 4889 | |
d460ef45 | 4890 | do { |
4e8e7886 | 4891 | stash = SvSTASH(sv); |
32251b26 | 4892 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 GS |
4893 | if (destructor) { |
4894 | ENTER; | |
e788e7d3 | 4895 | PUSHSTACKi(PERLSI_DESTROY); |
837485b6 | 4896 | SvRV(&tmpref) = SvREFCNT_inc(sv); |
4e8e7886 GS |
4897 | EXTEND(SP, 2); |
4898 | PUSHMARK(SP); | |
837485b6 | 4899 | PUSHs(&tmpref); |
4e8e7886 | 4900 | PUTBACK; |
32251b26 | 4901 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR); |
4e8e7886 | 4902 | SvREFCNT(sv)--; |
d3acc0f7 | 4903 | POPSTACK; |
3095d977 | 4904 | SPAGAIN; |
4e8e7886 GS |
4905 | LEAVE; |
4906 | } | |
4907 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 4908 | |
837485b6 | 4909 | del_XRV(SvANY(&tmpref)); |
6f44e0a4 JP |
4910 | |
4911 | if (SvREFCNT(sv)) { | |
4912 | if (PL_in_clean_objs) | |
cea2e8a9 | 4913 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
6f44e0a4 JP |
4914 | HvNAME(stash)); |
4915 | /* DESTROY gave object new lease on life */ | |
4916 | return; | |
4917 | } | |
a0d0e21e | 4918 | } |
4e8e7886 | 4919 | |
a0d0e21e | 4920 | if (SvOBJECT(sv)) { |
4e8e7886 | 4921 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
4922 | SvOBJECT_off(sv); /* Curse the object. */ |
4923 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 4924 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 4925 | } |
463ee0b2 | 4926 | } |
524189f1 JH |
4927 | if (SvTYPE(sv) >= SVt_PVMG) { |
4928 | if (SvMAGIC(sv)) | |
4929 | mg_free(sv); | |
4930 | if (SvFLAGS(sv) & SVpad_TYPED) | |
4931 | SvREFCNT_dec(SvSTASH(sv)); | |
4932 | } | |
ec12f114 | 4933 | stash = NULL; |
79072805 | 4934 | switch (SvTYPE(sv)) { |
8990e307 | 4935 | case SVt_PVIO: |
df0bd2f4 GS |
4936 | if (IoIFP(sv) && |
4937 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 4938 | IoIFP(sv) != PerlIO_stdout() && |
4939 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 4940 | { |
f2b5be74 | 4941 | io_close((IO*)sv, FALSE); |
93578b34 | 4942 | } |
1d7c1841 | 4943 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 4944 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 4945 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
4946 | Safefree(IoTOP_NAME(sv)); |
4947 | Safefree(IoFMT_NAME(sv)); | |
4948 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 4949 | /* FALL THROUGH */ |
79072805 | 4950 | case SVt_PVBM: |
a0d0e21e | 4951 | goto freescalar; |
79072805 | 4952 | case SVt_PVCV: |
748a9306 | 4953 | case SVt_PVFM: |
85e6fe83 | 4954 | cv_undef((CV*)sv); |
a0d0e21e | 4955 | goto freescalar; |
79072805 | 4956 | case SVt_PVHV: |
85e6fe83 | 4957 | hv_undef((HV*)sv); |
a0d0e21e | 4958 | break; |
79072805 | 4959 | case SVt_PVAV: |
85e6fe83 | 4960 | av_undef((AV*)sv); |
a0d0e21e | 4961 | break; |
02270b4e GS |
4962 | case SVt_PVLV: |
4963 | SvREFCNT_dec(LvTARG(sv)); | |
4964 | goto freescalar; | |
a0d0e21e | 4965 | case SVt_PVGV: |
1edc1566 | 4966 | gp_free((GV*)sv); |
a0d0e21e | 4967 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
4968 | /* cannot decrease stash refcount yet, as we might recursively delete |
4969 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
4970 | of stash until current sv is completely gone. | |
4971 | -- JohnPC, 27 Mar 1998 */ | |
4972 | stash = GvSTASH(sv); | |
a0d0e21e | 4973 | /* FALL THROUGH */ |
79072805 | 4974 | case SVt_PVMG: |
79072805 LW |
4975 | case SVt_PVNV: |
4976 | case SVt_PVIV: | |
a0d0e21e LW |
4977 | freescalar: |
4978 | (void)SvOOK_off(sv); | |
79072805 LW |
4979 | /* FALL THROUGH */ |
4980 | case SVt_PV: | |
a0d0e21e | 4981 | case SVt_RV: |
810b8aa5 GS |
4982 | if (SvROK(sv)) { |
4983 | if (SvWEAKREF(sv)) | |
4984 | sv_del_backref(sv); | |
4985 | else | |
4986 | SvREFCNT_dec(SvRV(sv)); | |
4987 | } | |
1edc1566 | 4988 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 4989 | Safefree(SvPVX(sv)); |
1c846c1f | 4990 | else if (SvPVX(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
25716404 GS |
4991 | unsharepvn(SvPVX(sv), |
4992 | SvUTF8(sv) ? -(I32)SvCUR(sv) : SvCUR(sv), | |
4993 | SvUVX(sv)); | |
1c846c1f NIS |
4994 | SvFAKE_off(sv); |
4995 | } | |
79072805 | 4996 | break; |
a0d0e21e | 4997 | /* |
79072805 | 4998 | case SVt_NV: |
79072805 | 4999 | case SVt_IV: |
79072805 LW |
5000 | case SVt_NULL: |
5001 | break; | |
a0d0e21e | 5002 | */ |
79072805 LW |
5003 | } |
5004 | ||
5005 | switch (SvTYPE(sv)) { | |
5006 | case SVt_NULL: | |
5007 | break; | |
79072805 LW |
5008 | case SVt_IV: |
5009 | del_XIV(SvANY(sv)); | |
5010 | break; | |
5011 | case SVt_NV: | |
5012 | del_XNV(SvANY(sv)); | |
5013 | break; | |
ed6116ce LW |
5014 | case SVt_RV: |
5015 | del_XRV(SvANY(sv)); | |
5016 | break; | |
79072805 LW |
5017 | case SVt_PV: |
5018 | del_XPV(SvANY(sv)); | |
5019 | break; | |
5020 | case SVt_PVIV: | |
5021 | del_XPVIV(SvANY(sv)); | |
5022 | break; | |
5023 | case SVt_PVNV: | |
5024 | del_XPVNV(SvANY(sv)); | |
5025 | break; | |
5026 | case SVt_PVMG: | |
5027 | del_XPVMG(SvANY(sv)); | |
5028 | break; | |
5029 | case SVt_PVLV: | |
5030 | del_XPVLV(SvANY(sv)); | |
5031 | break; | |
5032 | case SVt_PVAV: | |
5033 | del_XPVAV(SvANY(sv)); | |
5034 | break; | |
5035 | case SVt_PVHV: | |
5036 | del_XPVHV(SvANY(sv)); | |
5037 | break; | |
5038 | case SVt_PVCV: | |
5039 | del_XPVCV(SvANY(sv)); | |
5040 | break; | |
5041 | case SVt_PVGV: | |
5042 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
5043 | /* code duplication for increased performance. */ |
5044 | SvFLAGS(sv) &= SVf_BREAK; | |
5045 | SvFLAGS(sv) |= SVTYPEMASK; | |
5046 | /* decrease refcount of the stash that owns this GV, if any */ | |
5047 | if (stash) | |
5048 | SvREFCNT_dec(stash); | |
5049 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
5050 | case SVt_PVBM: |
5051 | del_XPVBM(SvANY(sv)); | |
5052 | break; | |
5053 | case SVt_PVFM: | |
5054 | del_XPVFM(SvANY(sv)); | |
5055 | break; | |
8990e307 LW |
5056 | case SVt_PVIO: |
5057 | del_XPVIO(SvANY(sv)); | |
5058 | break; | |
79072805 | 5059 | } |
a0d0e21e | 5060 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 5061 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
5062 | } |
5063 | ||
645c22ef DM |
5064 | /* |
5065 | =for apidoc sv_newref | |
5066 | ||
5067 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5068 | instead. | |
5069 | ||
5070 | =cut | |
5071 | */ | |
5072 | ||
79072805 | 5073 | SV * |
864dbfa3 | 5074 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5075 | { |
463ee0b2 | 5076 | if (sv) |
dce16143 | 5077 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
5078 | return sv; |
5079 | } | |
5080 | ||
c461cf8f JH |
5081 | /* |
5082 | =for apidoc sv_free | |
5083 | ||
645c22ef DM |
5084 | Decrement an SV's reference count, and if it drops to zero, call |
5085 | C<sv_clear> to invoke destructors and free up any memory used by | |
5086 | the body; finally, deallocate the SV's head itself. | |
5087 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5088 | |
5089 | =cut | |
5090 | */ | |
5091 | ||
79072805 | 5092 | void |
864dbfa3 | 5093 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5094 | { |
dce16143 MB |
5095 | int refcount_is_zero; |
5096 | ||
79072805 LW |
5097 | if (!sv) |
5098 | return; | |
a0d0e21e LW |
5099 | if (SvREFCNT(sv) == 0) { |
5100 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5101 | /* this SV's refcnt has been artificially decremented to |
5102 | * trigger cleanup */ | |
a0d0e21e | 5103 | return; |
3280af22 | 5104 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5105 | return; |
d689ffdd JP |
5106 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5107 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5108 | SvREFCNT(sv) = (~(U32)0)/2; | |
5109 | return; | |
5110 | } | |
0453d815 PM |
5111 | if (ckWARN_d(WARN_INTERNAL)) |
5112 | Perl_warner(aTHX_ WARN_INTERNAL, "Attempt to free unreferenced scalar"); | |
79072805 LW |
5113 | return; |
5114 | } | |
dce16143 MB |
5115 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
5116 | if (!refcount_is_zero) | |
8990e307 | 5117 | return; |
463ee0b2 LW |
5118 | #ifdef DEBUGGING |
5119 | if (SvTEMP(sv)) { | |
0453d815 | 5120 | if (ckWARN_d(WARN_DEBUGGING)) |
f248d071 | 5121 | Perl_warner(aTHX_ WARN_DEBUGGING, |
1d7c1841 GS |
5122 | "Attempt to free temp prematurely: SV 0x%"UVxf, |
5123 | PTR2UV(sv)); | |
79072805 | 5124 | return; |
79072805 | 5125 | } |
463ee0b2 | 5126 | #endif |
d689ffdd JP |
5127 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5128 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5129 | SvREFCNT(sv) = (~(U32)0)/2; | |
5130 | return; | |
5131 | } | |
79072805 | 5132 | sv_clear(sv); |
477f5d66 CS |
5133 | if (! SvREFCNT(sv)) |
5134 | del_SV(sv); | |
79072805 LW |
5135 | } |
5136 | ||
954c1994 GS |
5137 | /* |
5138 | =for apidoc sv_len | |
5139 | ||
645c22ef DM |
5140 | Returns the length of the string in the SV. Handles magic and type |
5141 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5142 | |
5143 | =cut | |
5144 | */ | |
5145 | ||
79072805 | 5146 | STRLEN |
864dbfa3 | 5147 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5148 | { |
463ee0b2 | 5149 | STRLEN len; |
79072805 LW |
5150 | |
5151 | if (!sv) | |
5152 | return 0; | |
5153 | ||
8990e307 | 5154 | if (SvGMAGICAL(sv)) |
565764a8 | 5155 | len = mg_length(sv); |
8990e307 | 5156 | else |
497b47a8 | 5157 | (void)SvPV(sv, len); |
463ee0b2 | 5158 | return len; |
79072805 LW |
5159 | } |
5160 | ||
c461cf8f JH |
5161 | /* |
5162 | =for apidoc sv_len_utf8 | |
5163 | ||
5164 | Returns the number of characters in the string in an SV, counting wide | |
645c22ef | 5165 | UTF8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5166 | |
5167 | =cut | |
5168 | */ | |
5169 | ||
a0ed51b3 | 5170 | STRLEN |
864dbfa3 | 5171 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5172 | { |
a0ed51b3 LW |
5173 | if (!sv) |
5174 | return 0; | |
5175 | ||
a0ed51b3 | 5176 | if (SvGMAGICAL(sv)) |
b76347f2 | 5177 | return mg_length(sv); |
a0ed51b3 | 5178 | else |
b76347f2 JH |
5179 | { |
5180 | STRLEN len; | |
5181 | U8 *s = (U8*)SvPV(sv, len); | |
5182 | ||
d6efbbad | 5183 | return Perl_utf8_length(aTHX_ s, s + len); |
a0ed51b3 | 5184 | } |
a0ed51b3 LW |
5185 | } |
5186 | ||
645c22ef DM |
5187 | /* |
5188 | =for apidoc sv_pos_u2b | |
5189 | ||
5190 | Converts the value pointed to by offsetp from a count of UTF8 chars from | |
5191 | the start of the string, to a count of the equivalent number of bytes; if | |
5192 | lenp is non-zero, it does the same to lenp, but this time starting from | |
5193 | the offset, rather than from the start of the string. Handles magic and | |
5194 | type coercion. | |
5195 | ||
5196 | =cut | |
5197 | */ | |
5198 | ||
a0ed51b3 | 5199 | void |
864dbfa3 | 5200 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 5201 | { |
dfe13c55 GS |
5202 | U8 *start; |
5203 | U8 *s; | |
5204 | U8 *send; | |
a0ed51b3 LW |
5205 | I32 uoffset = *offsetp; |
5206 | STRLEN len; | |
5207 | ||
5208 | if (!sv) | |
5209 | return; | |
5210 | ||
dfe13c55 | 5211 | start = s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
5212 | send = s + len; |
5213 | while (s < send && uoffset--) | |
5214 | s += UTF8SKIP(s); | |
bb40f870 GA |
5215 | if (s >= send) |
5216 | s = send; | |
a0ed51b3 LW |
5217 | *offsetp = s - start; |
5218 | if (lenp) { | |
5219 | I32 ulen = *lenp; | |
5220 | start = s; | |
5221 | while (s < send && ulen--) | |
5222 | s += UTF8SKIP(s); | |
bb40f870 GA |
5223 | if (s >= send) |
5224 | s = send; | |
a0ed51b3 LW |
5225 | *lenp = s - start; |
5226 | } | |
5227 | return; | |
5228 | } | |
5229 | ||
645c22ef DM |
5230 | /* |
5231 | =for apidoc sv_pos_b2u | |
5232 | ||
5233 | Converts the value pointed to by offsetp from a count of bytes from the | |
5234 | start of the string, to a count of the equivalent number of UTF8 chars. | |
5235 | Handles magic and type coercion. | |
5236 | ||
5237 | =cut | |
5238 | */ | |
5239 | ||
a0ed51b3 | 5240 | void |
864dbfa3 | 5241 | Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp) |
a0ed51b3 | 5242 | { |
dfe13c55 GS |
5243 | U8 *s; |
5244 | U8 *send; | |
a0ed51b3 LW |
5245 | STRLEN len; |
5246 | ||
5247 | if (!sv) | |
5248 | return; | |
5249 | ||
dfe13c55 | 5250 | s = (U8*)SvPV(sv, len); |
a0ed51b3 | 5251 | if (len < *offsetp) |
a0dbb045 | 5252 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
a0ed51b3 LW |
5253 | send = s + *offsetp; |
5254 | len = 0; | |
5255 | while (s < send) { | |
a0dbb045 | 5256 | STRLEN n; |
2b9d42f0 NIS |
5257 | /* Call utf8n_to_uvchr() to validate the sequence */ |
5258 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
5259 | if (n > 0) { | |
a0dbb045 JH |
5260 | s += n; |
5261 | len++; | |
5262 | } | |
5263 | else | |
5264 | break; | |
a0ed51b3 LW |
5265 | } |
5266 | *offsetp = len; | |
5267 | return; | |
5268 | } | |
5269 | ||
954c1994 GS |
5270 | /* |
5271 | =for apidoc sv_eq | |
5272 | ||
5273 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
5274 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5275 | coerce its args to strings if necessary. | |
954c1994 GS |
5276 | |
5277 | =cut | |
5278 | */ | |
5279 | ||
79072805 | 5280 | I32 |
e01b9e88 | 5281 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 LW |
5282 | { |
5283 | char *pv1; | |
463ee0b2 | 5284 | STRLEN cur1; |
79072805 | 5285 | char *pv2; |
463ee0b2 | 5286 | STRLEN cur2; |
e01b9e88 | 5287 | I32 eq = 0; |
db42d148 | 5288 | char *tpv = Nullch; |
79072805 | 5289 | |
e01b9e88 | 5290 | if (!sv1) { |
79072805 LW |
5291 | pv1 = ""; |
5292 | cur1 = 0; | |
5293 | } | |
463ee0b2 | 5294 | else |
e01b9e88 | 5295 | pv1 = SvPV(sv1, cur1); |
79072805 | 5296 | |
e01b9e88 SC |
5297 | if (!sv2){ |
5298 | pv2 = ""; | |
5299 | cur2 = 0; | |
92d29cee | 5300 | } |
e01b9e88 SC |
5301 | else |
5302 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5303 | |
e01b9e88 | 5304 | /* do not utf8ize the comparands as a side-effect */ |
0064a8a9 | 5305 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
f9a63242 | 5306 | bool is_utf8 = TRUE; |
db42d148 | 5307 | /* UTF-8ness differs */ |
1aa99e6b | 5308 | |
e01b9e88 | 5309 | if (SvUTF8(sv1)) { |
db42d148 | 5310 | /* sv1 is the UTF-8 one , If is equal it must be downgrade-able */ |
f34ff0a8 | 5311 | char *pv = (char*)bytes_from_utf8((U8*)pv1, &cur1, &is_utf8); |
db42d148 NIS |
5312 | if (pv != pv1) |
5313 | pv1 = tpv = pv; | |
e01b9e88 SC |
5314 | } |
5315 | else { | |
db42d148 | 5316 | /* sv2 is the UTF-8 one , If is equal it must be downgrade-able */ |
f34ff0a8 | 5317 | char *pv = (char *)bytes_from_utf8((U8*)pv2, &cur2, &is_utf8); |
db42d148 NIS |
5318 | if (pv != pv2) |
5319 | pv2 = tpv = pv; | |
5320 | } | |
5321 | if (is_utf8) { | |
5322 | /* Downgrade not possible - cannot be eq */ | |
5323 | return FALSE; | |
e01b9e88 SC |
5324 | } |
5325 | } | |
79072805 | 5326 | |
e01b9e88 SC |
5327 | if (cur1 == cur2) |
5328 | eq = memEQ(pv1, pv2, cur1); | |
5329 | ||
db42d148 NIS |
5330 | if (tpv != Nullch) |
5331 | Safefree(tpv); | |
e01b9e88 SC |
5332 | |
5333 | return eq; | |
79072805 LW |
5334 | } |
5335 | ||
954c1994 GS |
5336 | /* |
5337 | =for apidoc sv_cmp | |
5338 | ||
5339 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
5340 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
5341 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5342 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
5343 | |
5344 | =cut | |
5345 | */ | |
5346 | ||
79072805 | 5347 | I32 |
e01b9e88 | 5348 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5349 | { |
560a288e GS |
5350 | STRLEN cur1, cur2; |
5351 | char *pv1, *pv2; | |
1c846c1f | 5352 | I32 cmp; |
e01b9e88 SC |
5353 | bool pv1tmp = FALSE; |
5354 | bool pv2tmp = FALSE; | |
560a288e | 5355 | |
e01b9e88 SC |
5356 | if (!sv1) { |
5357 | pv1 = ""; | |
560a288e GS |
5358 | cur1 = 0; |
5359 | } | |
e01b9e88 SC |
5360 | else |
5361 | pv1 = SvPV(sv1, cur1); | |
560a288e | 5362 | |
e01b9e88 SC |
5363 | if (!sv2){ |
5364 | pv2 = ""; | |
560a288e GS |
5365 | cur2 = 0; |
5366 | } | |
e01b9e88 SC |
5367 | else |
5368 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5369 | |
e01b9e88 | 5370 | /* do not utf8ize the comparands as a side-effect */ |
0064a8a9 | 5371 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
e01b9e88 SC |
5372 | if (SvUTF8(sv1)) { |
5373 | pv2 = (char*)bytes_to_utf8((U8*)pv2, &cur2); | |
5374 | pv2tmp = TRUE; | |
5375 | } | |
5376 | else { | |
5377 | pv1 = (char*)bytes_to_utf8((U8*)pv1, &cur1); | |
5378 | pv1tmp = TRUE; | |
5379 | } | |
5380 | } | |
79072805 | 5381 | |
e01b9e88 SC |
5382 | if (!cur1) { |
5383 | cmp = cur2 ? -1 : 0; | |
5384 | } else if (!cur2) { | |
5385 | cmp = 1; | |
5386 | } else { | |
5387 | I32 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); | |
5388 | ||
5389 | if (retval) { | |
5390 | cmp = retval < 0 ? -1 : 1; | |
5391 | } else if (cur1 == cur2) { | |
5392 | cmp = 0; | |
5393 | } else { | |
5394 | cmp = cur1 < cur2 ? -1 : 1; | |
5395 | } | |
5396 | } | |
16660edb | 5397 | |
e01b9e88 SC |
5398 | if (pv1tmp) |
5399 | Safefree(pv1); | |
5400 | if (pv2tmp) | |
5401 | Safefree(pv2); | |
16660edb | 5402 | |
e01b9e88 | 5403 | return cmp; |
bbce6d69 | 5404 | } |
16660edb | 5405 | |
c461cf8f JH |
5406 | /* |
5407 | =for apidoc sv_cmp_locale | |
5408 | ||
645c22ef DM |
5409 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
5410 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
5411 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
5412 | |
5413 | =cut | |
5414 | */ | |
5415 | ||
bbce6d69 | 5416 | I32 |
864dbfa3 | 5417 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 5418 | { |
36477c24 | 5419 | #ifdef USE_LOCALE_COLLATE |
16660edb | 5420 | |
bbce6d69 | 5421 | char *pv1, *pv2; |
5422 | STRLEN len1, len2; | |
5423 | I32 retval; | |
16660edb | 5424 | |
3280af22 | 5425 | if (PL_collation_standard) |
bbce6d69 | 5426 | goto raw_compare; |
16660edb | 5427 | |
bbce6d69 | 5428 | len1 = 0; |
8ac85365 | 5429 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 5430 | len2 = 0; |
8ac85365 | 5431 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 5432 | |
bbce6d69 | 5433 | if (!pv1 || !len1) { |
5434 | if (pv2 && len2) | |
5435 | return -1; | |
5436 | else | |
5437 | goto raw_compare; | |
5438 | } | |
5439 | else { | |
5440 | if (!pv2 || !len2) | |
5441 | return 1; | |
5442 | } | |
16660edb | 5443 | |
bbce6d69 | 5444 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 5445 | |
bbce6d69 | 5446 | if (retval) |
16660edb | 5447 | return retval < 0 ? -1 : 1; |
5448 | ||
bbce6d69 | 5449 | /* |
5450 | * When the result of collation is equality, that doesn't mean | |
5451 | * that there are no differences -- some locales exclude some | |
5452 | * characters from consideration. So to avoid false equalities, | |
5453 | * we use the raw string as a tiebreaker. | |
5454 | */ | |
16660edb | 5455 | |
bbce6d69 | 5456 | raw_compare: |
5457 | /* FALL THROUGH */ | |
16660edb | 5458 | |
36477c24 | 5459 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 5460 | |
bbce6d69 | 5461 | return sv_cmp(sv1, sv2); |
5462 | } | |
79072805 | 5463 | |
645c22ef | 5464 | |
36477c24 | 5465 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 5466 | |
7a4c00b4 | 5467 | /* |
645c22ef DM |
5468 | =for apidoc sv_collxfrm |
5469 | ||
5470 | Add Collate Transform magic to an SV if it doesn't already have it. | |
5471 | ||
5472 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
5473 | scalar data of the variable, but transformed to such a format that a normal | |
5474 | memory comparison can be used to compare the data according to the locale | |
5475 | settings. | |
5476 | ||
5477 | =cut | |
5478 | */ | |
5479 | ||
bbce6d69 | 5480 | char * |
864dbfa3 | 5481 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 5482 | { |
7a4c00b4 | 5483 | MAGIC *mg; |
16660edb | 5484 | |
14befaf4 | 5485 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 5486 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 5487 | char *s, *xf; |
5488 | STRLEN len, xlen; | |
5489 | ||
7a4c00b4 | 5490 | if (mg) |
5491 | Safefree(mg->mg_ptr); | |
bbce6d69 | 5492 | s = SvPV(sv, len); |
5493 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 5494 | if (SvREADONLY(sv)) { |
5495 | SAVEFREEPV(xf); | |
5496 | *nxp = xlen; | |
3280af22 | 5497 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 5498 | } |
7a4c00b4 | 5499 | if (! mg) { |
14befaf4 DM |
5500 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
5501 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 5502 | assert(mg); |
bbce6d69 | 5503 | } |
7a4c00b4 | 5504 | mg->mg_ptr = xf; |
565764a8 | 5505 | mg->mg_len = xlen; |
7a4c00b4 | 5506 | } |
5507 | else { | |
ff0cee69 | 5508 | if (mg) { |
5509 | mg->mg_ptr = NULL; | |
565764a8 | 5510 | mg->mg_len = -1; |
ff0cee69 | 5511 | } |
bbce6d69 | 5512 | } |
5513 | } | |
7a4c00b4 | 5514 | if (mg && mg->mg_ptr) { |
565764a8 | 5515 | *nxp = mg->mg_len; |
3280af22 | 5516 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 5517 | } |
5518 | else { | |
5519 | *nxp = 0; | |
5520 | return NULL; | |
16660edb | 5521 | } |
79072805 LW |
5522 | } |
5523 | ||
36477c24 | 5524 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 5525 | |
c461cf8f JH |
5526 | /* |
5527 | =for apidoc sv_gets | |
5528 | ||
5529 | Get a line from the filehandle and store it into the SV, optionally | |
5530 | appending to the currently-stored string. | |
5531 | ||
5532 | =cut | |
5533 | */ | |
5534 | ||
79072805 | 5535 | char * |
864dbfa3 | 5536 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 5537 | { |
c07a80fd | 5538 | char *rsptr; |
5539 | STRLEN rslen; | |
5540 | register STDCHAR rslast; | |
5541 | register STDCHAR *bp; | |
5542 | register I32 cnt; | |
9c5ffd7c | 5543 | I32 i = 0; |
8bfdd7d9 | 5544 | I32 rspara = 0; |
c07a80fd | 5545 | |
2213622d | 5546 | SV_CHECK_THINKFIRST(sv); |
6fc92669 | 5547 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 5548 | |
ff68c719 | 5549 | SvSCREAM_off(sv); |
c07a80fd | 5550 | |
8bfdd7d9 HS |
5551 | if (PL_curcop == &PL_compiling) { |
5552 | /* we always read code in line mode */ | |
5553 | rsptr = "\n"; | |
5554 | rslen = 1; | |
5555 | } | |
5556 | else if (RsSNARF(PL_rs)) { | |
c07a80fd | 5557 | rsptr = NULL; |
5558 | rslen = 0; | |
5559 | } | |
3280af22 | 5560 | else if (RsRECORD(PL_rs)) { |
5b2b9c68 HM |
5561 | I32 recsize, bytesread; |
5562 | char *buffer; | |
5563 | ||
5564 | /* Grab the size of the record we're getting */ | |
3280af22 | 5565 | recsize = SvIV(SvRV(PL_rs)); |
5b2b9c68 | 5566 | (void)SvPOK_only(sv); /* Validate pointer */ |
e670df4e | 5567 | buffer = SvGROW(sv, recsize + 1); |
5b2b9c68 HM |
5568 | /* Go yank in */ |
5569 | #ifdef VMS | |
5570 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
5571 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
5572 | /* doing, but we've got no other real choice */ | |
5573 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); | |
5574 | #else | |
5575 | bytesread = PerlIO_read(fp, buffer, recsize); | |
5576 | #endif | |
5577 | SvCUR_set(sv, bytesread); | |
e670df4e | 5578 | buffer[bytesread] = '\0'; |
7d59b7e4 NIS |
5579 | if (PerlIO_isutf8(fp)) |
5580 | SvUTF8_on(sv); | |
5581 | else | |
5582 | SvUTF8_off(sv); | |
5b2b9c68 HM |
5583 | return(SvCUR(sv) ? SvPVX(sv) : Nullch); |
5584 | } | |
3280af22 | 5585 | else if (RsPARA(PL_rs)) { |
c07a80fd | 5586 | rsptr = "\n\n"; |
5587 | rslen = 2; | |
8bfdd7d9 | 5588 | rspara = 1; |
c07a80fd | 5589 | } |
7d59b7e4 NIS |
5590 | else { |
5591 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
5592 | if (PerlIO_isutf8(fp)) { | |
5593 | rsptr = SvPVutf8(PL_rs, rslen); | |
5594 | } | |
5595 | else { | |
5596 | if (SvUTF8(PL_rs)) { | |
5597 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
5598 | Perl_croak(aTHX_ "Wide character in $/"); | |
5599 | } | |
5600 | } | |
5601 | rsptr = SvPV(PL_rs, rslen); | |
5602 | } | |
5603 | } | |
5604 | ||
c07a80fd | 5605 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
5606 | ||
8bfdd7d9 | 5607 | if (rspara) { /* have to do this both before and after */ |
79072805 | 5608 | do { /* to make sure file boundaries work right */ |
760ac839 | 5609 | if (PerlIO_eof(fp)) |
a0d0e21e | 5610 | return 0; |
760ac839 | 5611 | i = PerlIO_getc(fp); |
79072805 | 5612 | if (i != '\n') { |
a0d0e21e LW |
5613 | if (i == -1) |
5614 | return 0; | |
760ac839 | 5615 | PerlIO_ungetc(fp,i); |
79072805 LW |
5616 | break; |
5617 | } | |
5618 | } while (i != EOF); | |
5619 | } | |
c07a80fd | 5620 | |
760ac839 LW |
5621 | /* See if we know enough about I/O mechanism to cheat it ! */ |
5622 | ||
5623 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 5624 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
5625 | enough here - and may even be a macro allowing compile |
5626 | time optimization. | |
5627 | */ | |
5628 | ||
5629 | if (PerlIO_fast_gets(fp)) { | |
5630 | ||
5631 | /* | |
5632 | * We're going to steal some values from the stdio struct | |
5633 | * and put EVERYTHING in the innermost loop into registers. | |
5634 | */ | |
5635 | register STDCHAR *ptr; | |
5636 | STRLEN bpx; | |
5637 | I32 shortbuffered; | |
5638 | ||
16660edb | 5639 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
5640 | /* An ungetc()d char is handled separately from the regular | |
5641 | * buffer, so we getc() it back out and stuff it in the buffer. | |
5642 | */ | |
5643 | i = PerlIO_getc(fp); | |
5644 | if (i == EOF) return 0; | |
5645 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
5646 | (*fp)->_cnt++; | |
5647 | #endif | |
c07a80fd | 5648 | |
c2960299 | 5649 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 5650 | |
a20bf0c3 | 5651 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
a0d0e21e | 5652 | (void)SvPOK_only(sv); /* validate pointer */ |
79072805 LW |
5653 | if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ |
5654 | if (cnt > 80 && SvLEN(sv) > append) { | |
5655 | shortbuffered = cnt - SvLEN(sv) + append + 1; | |
5656 | cnt -= shortbuffered; | |
5657 | } | |
5658 | else { | |
5659 | shortbuffered = 0; | |
bbce6d69 | 5660 | /* remember that cnt can be negative */ |
5661 | SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1))); | |
79072805 LW |
5662 | } |
5663 | } | |
5664 | else | |
5665 | shortbuffered = 0; | |
c07a80fd | 5666 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 5667 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 5668 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5669 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 5670 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
ba7abf9d | 5671 | "Screamer: entering: PerlIO * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5672 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5673 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
5674 | for (;;) { |
5675 | screamer: | |
93a17b20 | 5676 | if (cnt > 0) { |
c07a80fd | 5677 | if (rslen) { |
760ac839 LW |
5678 | while (cnt > 0) { /* this | eat */ |
5679 | cnt--; | |
c07a80fd | 5680 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
5681 | goto thats_all_folks; /* screams | sed :-) */ | |
5682 | } | |
5683 | } | |
5684 | else { | |
1c846c1f NIS |
5685 | Copy(ptr, bp, cnt, char); /* this | eat */ |
5686 | bp += cnt; /* screams | dust */ | |
c07a80fd | 5687 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 5688 | cnt = 0; |
93a17b20 | 5689 | } |
79072805 LW |
5690 | } |
5691 | ||
748a9306 | 5692 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
5693 | cnt = shortbuffered; |
5694 | shortbuffered = 0; | |
c07a80fd | 5695 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5696 | SvCUR_set(sv, bpx); |
5697 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 5698 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
5699 | continue; |
5700 | } | |
5701 | ||
16660edb | 5702 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
5703 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
5704 | PTR2UV(ptr),(long)cnt)); | |
cc00df79 | 5705 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* deregisterize cnt and ptr */ |
ba7abf9d | 5706 | #if 0 |
16660edb | 5707 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5708 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5709 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5710 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 5711 | #endif |
1c846c1f | 5712 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 5713 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
5714 | another abstraction. */ | |
760ac839 | 5715 | i = PerlIO_getc(fp); /* get more characters */ |
ba7abf9d | 5716 | #if 0 |
16660edb | 5717 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5718 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5719 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5720 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 5721 | #endif |
a20bf0c3 JH |
5722 | cnt = PerlIO_get_cnt(fp); |
5723 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 5724 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5725 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 5726 | |
748a9306 LW |
5727 | if (i == EOF) /* all done for ever? */ |
5728 | goto thats_really_all_folks; | |
5729 | ||
c07a80fd | 5730 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
5731 | SvCUR_set(sv, bpx); |
5732 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 5733 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
5734 | ||
760ac839 | 5735 | *bp++ = i; /* store character from PerlIO_getc */ |
79072805 | 5736 | |
c07a80fd | 5737 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 5738 | goto thats_all_folks; |
79072805 LW |
5739 | } |
5740 | ||
5741 | thats_all_folks: | |
c07a80fd | 5742 | if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || |
36477c24 | 5743 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 5744 | goto screamer; /* go back to the fray */ |
79072805 LW |
5745 | thats_really_all_folks: |
5746 | if (shortbuffered) | |
5747 | cnt += shortbuffered; | |
16660edb | 5748 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5749 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
cc00df79 | 5750 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 5751 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 5752 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 5753 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 5754 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 5755 | *bp = '\0'; |
760ac839 | 5756 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 5757 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 5758 | "Screamer: done, len=%ld, string=|%.*s|\n", |
5759 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
5760 | } |
5761 | else | |
79072805 | 5762 | { |
4d2c4e07 | 5763 | #ifndef EPOC |
760ac839 | 5764 | /*The big, slow, and stupid way */ |
c07a80fd | 5765 | STDCHAR buf[8192]; |
4d2c4e07 OF |
5766 | #else |
5767 | /* Need to work around EPOC SDK features */ | |
5768 | /* On WINS: MS VC5 generates calls to _chkstk, */ | |
5769 | /* if a `large' stack frame is allocated */ | |
5770 | /* gcc on MARM does not generate calls like these */ | |
5771 | STDCHAR buf[1024]; | |
5772 | #endif | |
79072805 | 5773 | |
760ac839 | 5774 | screamer2: |
c07a80fd | 5775 | if (rslen) { |
760ac839 LW |
5776 | register STDCHAR *bpe = buf + sizeof(buf); |
5777 | bp = buf; | |
5778 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe) | |
5779 | ; /* keep reading */ | |
5780 | cnt = bp - buf; | |
c07a80fd | 5781 | } |
5782 | else { | |
760ac839 | 5783 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 5784 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
5785 | * both args of ?: operator, causing EOF to change into 255 | |
5786 | */ | |
5787 | if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; } | |
c07a80fd | 5788 | } |
79072805 LW |
5789 | |
5790 | if (append) | |
760ac839 | 5791 | sv_catpvn(sv, (char *) buf, cnt); |
79072805 | 5792 | else |
760ac839 | 5793 | sv_setpvn(sv, (char *) buf, cnt); |
c07a80fd | 5794 | |
5795 | if (i != EOF && /* joy */ | |
5796 | (!rslen || | |
5797 | SvCUR(sv) < rslen || | |
36477c24 | 5798 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
5799 | { |
5800 | append = -1; | |
63e4d877 CS |
5801 | /* |
5802 | * If we're reading from a TTY and we get a short read, | |
5803 | * indicating that the user hit his EOF character, we need | |
5804 | * to notice it now, because if we try to read from the TTY | |
5805 | * again, the EOF condition will disappear. | |
5806 | * | |
5807 | * The comparison of cnt to sizeof(buf) is an optimization | |
5808 | * that prevents unnecessary calls to feof(). | |
5809 | * | |
5810 | * - jik 9/25/96 | |
5811 | */ | |
5812 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
5813 | goto screamer2; | |
79072805 LW |
5814 | } |
5815 | } | |
5816 | ||
8bfdd7d9 | 5817 | if (rspara) { /* have to do this both before and after */ |
c07a80fd | 5818 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 5819 | i = PerlIO_getc(fp); |
79072805 | 5820 | if (i != '\n') { |
760ac839 | 5821 | PerlIO_ungetc(fp,i); |
79072805 LW |
5822 | break; |
5823 | } | |
5824 | } | |
5825 | } | |
c07a80fd | 5826 | |
7d59b7e4 NIS |
5827 | if (PerlIO_isutf8(fp)) |
5828 | SvUTF8_on(sv); | |
5829 | else | |
5830 | SvUTF8_off(sv); | |
5831 | ||
c07a80fd | 5832 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
5833 | } |
5834 | ||
954c1994 GS |
5835 | /* |
5836 | =for apidoc sv_inc | |
5837 | ||
645c22ef DM |
5838 | Auto-increment of the value in the SV, doing string to numeric conversion |
5839 | if necessary. Handles 'get' magic. | |
954c1994 GS |
5840 | |
5841 | =cut | |
5842 | */ | |
5843 | ||
79072805 | 5844 | void |
864dbfa3 | 5845 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
5846 | { |
5847 | register char *d; | |
463ee0b2 | 5848 | int flags; |
79072805 LW |
5849 | |
5850 | if (!sv) | |
5851 | return; | |
b23a5f78 GB |
5852 | if (SvGMAGICAL(sv)) |
5853 | mg_get(sv); | |
ed6116ce | 5854 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
5855 | if (SvREADONLY(sv) && SvFAKE(sv)) |
5856 | sv_force_normal(sv); | |
0f15f207 | 5857 | if (SvREADONLY(sv)) { |
3280af22 | 5858 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 5859 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 5860 | } |
a0d0e21e | 5861 | if (SvROK(sv)) { |
b5be31e9 | 5862 | IV i; |
9e7bc3e8 JD |
5863 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
5864 | return; | |
56431972 | 5865 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
5866 | sv_unref(sv); |
5867 | sv_setiv(sv, i); | |
a0d0e21e | 5868 | } |
ed6116ce | 5869 | } |
8990e307 | 5870 | flags = SvFLAGS(sv); |
28e5dec8 JH |
5871 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
5872 | /* It's (privately or publicly) a float, but not tested as an | |
5873 | integer, so test it to see. */ | |
d460ef45 | 5874 | (void) SvIV(sv); |
28e5dec8 JH |
5875 | flags = SvFLAGS(sv); |
5876 | } | |
5877 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
5878 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 5879 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 5880 | oops_its_int: |
59d8ce62 | 5881 | #endif |
25da4f38 IZ |
5882 | if (SvIsUV(sv)) { |
5883 | if (SvUVX(sv) == UV_MAX) | |
a1e868e7 | 5884 | sv_setnv(sv, UV_MAX_P1); |
25da4f38 IZ |
5885 | else |
5886 | (void)SvIOK_only_UV(sv); | |
5887 | ++SvUVX(sv); | |
5888 | } else { | |
5889 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 5890 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
5891 | else { |
5892 | (void)SvIOK_only(sv); | |
5893 | ++SvIVX(sv); | |
1c846c1f | 5894 | } |
55497cff | 5895 | } |
79072805 LW |
5896 | return; |
5897 | } | |
28e5dec8 JH |
5898 | if (flags & SVp_NOK) { |
5899 | (void)SvNOK_only(sv); | |
5900 | SvNVX(sv) += 1.0; | |
5901 | return; | |
5902 | } | |
5903 | ||
8990e307 | 5904 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
28e5dec8 JH |
5905 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
5906 | sv_upgrade(sv, SVt_IV); | |
5907 | (void)SvIOK_only(sv); | |
5908 | SvIVX(sv) = 1; | |
79072805 LW |
5909 | return; |
5910 | } | |
463ee0b2 | 5911 | d = SvPVX(sv); |
79072805 LW |
5912 | while (isALPHA(*d)) d++; |
5913 | while (isDIGIT(*d)) d++; | |
5914 | if (*d) { | |
28e5dec8 | 5915 | #ifdef PERL_PRESERVE_IVUV |
d1be9408 | 5916 | /* Got to punt this as an integer if needs be, but we don't issue |
28e5dec8 JH |
5917 | warnings. Probably ought to make the sv_iv_please() that does |
5918 | the conversion if possible, and silently. */ | |
c2988b20 | 5919 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
5920 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
5921 | /* Need to try really hard to see if it's an integer. | |
5922 | 9.22337203685478e+18 is an integer. | |
5923 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
5924 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
5925 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
5926 | or we go insane. */ | |
d460ef45 | 5927 | |
28e5dec8 JH |
5928 | (void) sv_2iv(sv); |
5929 | if (SvIOK(sv)) | |
5930 | goto oops_its_int; | |
5931 | ||
5932 | /* sv_2iv *should* have made this an NV */ | |
5933 | if (flags & SVp_NOK) { | |
5934 | (void)SvNOK_only(sv); | |
5935 | SvNVX(sv) += 1.0; | |
5936 | return; | |
5937 | } | |
5938 | /* I don't think we can get here. Maybe I should assert this | |
5939 | And if we do get here I suspect that sv_setnv will croak. NWC | |
5940 | Fall through. */ | |
5941 | #if defined(USE_LONG_DOUBLE) | |
5942 | 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", | |
5943 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
5944 | #else | |
1779d84d | 5945 | 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 |
5946 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
5947 | #endif | |
5948 | } | |
5949 | #endif /* PERL_PRESERVE_IVUV */ | |
5950 | sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); | |
79072805 LW |
5951 | return; |
5952 | } | |
5953 | d--; | |
463ee0b2 | 5954 | while (d >= SvPVX(sv)) { |
79072805 LW |
5955 | if (isDIGIT(*d)) { |
5956 | if (++*d <= '9') | |
5957 | return; | |
5958 | *(d--) = '0'; | |
5959 | } | |
5960 | else { | |
9d116dd7 JH |
5961 | #ifdef EBCDIC |
5962 | /* MKS: The original code here died if letters weren't consecutive. | |
5963 | * at least it didn't have to worry about non-C locales. The | |
5964 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 5965 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
5966 | * [A-Za-z] are accepted by isALPHA in the C locale. |
5967 | */ | |
5968 | if (*d != 'z' && *d != 'Z') { | |
5969 | do { ++*d; } while (!isALPHA(*d)); | |
5970 | return; | |
5971 | } | |
5972 | *(d--) -= 'z' - 'a'; | |
5973 | #else | |
79072805 LW |
5974 | ++*d; |
5975 | if (isALPHA(*d)) | |
5976 | return; | |
5977 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 5978 | #endif |
79072805 LW |
5979 | } |
5980 | } | |
5981 | /* oh,oh, the number grew */ | |
5982 | SvGROW(sv, SvCUR(sv) + 2); | |
5983 | SvCUR(sv)++; | |
463ee0b2 | 5984 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
5985 | *d = d[-1]; |
5986 | if (isDIGIT(d[1])) | |
5987 | *d = '1'; | |
5988 | else | |
5989 | *d = d[1]; | |
5990 | } | |
5991 | ||
954c1994 GS |
5992 | /* |
5993 | =for apidoc sv_dec | |
5994 | ||
645c22ef DM |
5995 | Auto-decrement of the value in the SV, doing string to numeric conversion |
5996 | if necessary. Handles 'get' magic. | |
954c1994 GS |
5997 | |
5998 | =cut | |
5999 | */ | |
6000 | ||
79072805 | 6001 | void |
864dbfa3 | 6002 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 6003 | { |
463ee0b2 LW |
6004 | int flags; |
6005 | ||
79072805 LW |
6006 | if (!sv) |
6007 | return; | |
b23a5f78 GB |
6008 | if (SvGMAGICAL(sv)) |
6009 | mg_get(sv); | |
ed6116ce | 6010 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
6011 | if (SvREADONLY(sv) && SvFAKE(sv)) |
6012 | sv_force_normal(sv); | |
0f15f207 | 6013 | if (SvREADONLY(sv)) { |
3280af22 | 6014 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 6015 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6016 | } |
a0d0e21e | 6017 | if (SvROK(sv)) { |
b5be31e9 | 6018 | IV i; |
9e7bc3e8 JD |
6019 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
6020 | return; | |
56431972 | 6021 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6022 | sv_unref(sv); |
6023 | sv_setiv(sv, i); | |
a0d0e21e | 6024 | } |
ed6116ce | 6025 | } |
28e5dec8 JH |
6026 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
6027 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 6028 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6029 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
6030 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6031 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6032 | oops_its_int: |
59d8ce62 | 6033 | #endif |
25da4f38 IZ |
6034 | if (SvIsUV(sv)) { |
6035 | if (SvUVX(sv) == 0) { | |
6036 | (void)SvIOK_only(sv); | |
6037 | SvIVX(sv) = -1; | |
6038 | } | |
6039 | else { | |
6040 | (void)SvIOK_only_UV(sv); | |
6041 | --SvUVX(sv); | |
1c846c1f | 6042 | } |
25da4f38 IZ |
6043 | } else { |
6044 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 6045 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
6046 | else { |
6047 | (void)SvIOK_only(sv); | |
6048 | --SvIVX(sv); | |
1c846c1f | 6049 | } |
55497cff | 6050 | } |
6051 | return; | |
6052 | } | |
28e5dec8 JH |
6053 | if (flags & SVp_NOK) { |
6054 | SvNVX(sv) -= 1.0; | |
6055 | (void)SvNOK_only(sv); | |
6056 | return; | |
6057 | } | |
8990e307 | 6058 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
6059 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
6060 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 6061 | SvNVX(sv) = -1.0; |
a0d0e21e | 6062 | (void)SvNOK_only(sv); |
79072805 LW |
6063 | return; |
6064 | } | |
28e5dec8 JH |
6065 | #ifdef PERL_PRESERVE_IVUV |
6066 | { | |
c2988b20 | 6067 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6068 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6069 | /* Need to try really hard to see if it's an integer. | |
6070 | 9.22337203685478e+18 is an integer. | |
6071 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6072 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
6073 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
6074 | or we go insane. */ | |
d460ef45 | 6075 | |
28e5dec8 JH |
6076 | (void) sv_2iv(sv); |
6077 | if (SvIOK(sv)) | |
6078 | goto oops_its_int; | |
6079 | ||
6080 | /* sv_2iv *should* have made this an NV */ | |
6081 | if (flags & SVp_NOK) { | |
6082 | (void)SvNOK_only(sv); | |
6083 | SvNVX(sv) -= 1.0; | |
6084 | return; | |
6085 | } | |
6086 | /* I don't think we can get here. Maybe I should assert this | |
6087 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6088 | Fall through. */ | |
6089 | #if defined(USE_LONG_DOUBLE) | |
6090 | 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", | |
6091 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6092 | #else | |
1779d84d | 6093 | 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 |
6094 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
6095 | #endif | |
6096 | } | |
6097 | } | |
6098 | #endif /* PERL_PRESERVE_IVUV */ | |
097ee67d | 6099 | sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
6100 | } |
6101 | ||
954c1994 GS |
6102 | /* |
6103 | =for apidoc sv_mortalcopy | |
6104 | ||
645c22ef | 6105 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
d4236ebc DM |
6106 | The new SV is marked as mortal. It will be destroyed "soon", either by an |
6107 | explicit call to FREETMPS, or by an implicit call at places such as | |
6108 | statement boundaries. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
6109 | |
6110 | =cut | |
6111 | */ | |
6112 | ||
79072805 LW |
6113 | /* Make a string that will exist for the duration of the expression |
6114 | * evaluation. Actually, it may have to last longer than that, but | |
6115 | * hopefully we won't free it until it has been assigned to a | |
6116 | * permanent location. */ | |
6117 | ||
6118 | SV * | |
864dbfa3 | 6119 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 6120 | { |
463ee0b2 | 6121 | register SV *sv; |
79072805 | 6122 | |
4561caa4 | 6123 | new_SV(sv); |
79072805 | 6124 | sv_setsv(sv,oldstr); |
677b06e3 GS |
6125 | EXTEND_MORTAL(1); |
6126 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
6127 | SvTEMP_on(sv); |
6128 | return sv; | |
6129 | } | |
6130 | ||
954c1994 GS |
6131 | /* |
6132 | =for apidoc sv_newmortal | |
6133 | ||
645c22ef | 6134 | Creates a new null SV which is mortal. The reference count of the SV is |
d4236ebc DM |
6135 | set to 1. It will be destroyed "soon", either by an explicit call to |
6136 | FREETMPS, or by an implicit call at places such as statement boundaries. | |
6137 | See also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
6138 | |
6139 | =cut | |
6140 | */ | |
6141 | ||
8990e307 | 6142 | SV * |
864dbfa3 | 6143 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
6144 | { |
6145 | register SV *sv; | |
6146 | ||
4561caa4 | 6147 | new_SV(sv); |
8990e307 | 6148 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
6149 | EXTEND_MORTAL(1); |
6150 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
6151 | return sv; |
6152 | } | |
6153 | ||
954c1994 GS |
6154 | /* |
6155 | =for apidoc sv_2mortal | |
6156 | ||
d4236ebc DM |
6157 | Marks an existing SV as mortal. The SV will be destroyed "soon", either |
6158 | by an explicit call to FREETMPS, or by an implicit call at places such as | |
6159 | statement boundaries. See also C<sv_newmortal> and C<sv_mortalcopy>. | |
954c1994 GS |
6160 | |
6161 | =cut | |
6162 | */ | |
6163 | ||
79072805 | 6164 | SV * |
864dbfa3 | 6165 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 LW |
6166 | { |
6167 | if (!sv) | |
6168 | return sv; | |
d689ffdd | 6169 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 6170 | return sv; |
677b06e3 GS |
6171 | EXTEND_MORTAL(1); |
6172 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 6173 | SvTEMP_on(sv); |
79072805 LW |
6174 | return sv; |
6175 | } | |
6176 | ||
954c1994 GS |
6177 | /* |
6178 | =for apidoc newSVpv | |
6179 | ||
6180 | Creates a new SV and copies a string into it. The reference count for the | |
6181 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
6182 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
6183 | ||
6184 | =cut | |
6185 | */ | |
6186 | ||
79072805 | 6187 | SV * |
864dbfa3 | 6188 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 6189 | { |
463ee0b2 | 6190 | register SV *sv; |
79072805 | 6191 | |
4561caa4 | 6192 | new_SV(sv); |
79072805 LW |
6193 | if (!len) |
6194 | len = strlen(s); | |
6195 | sv_setpvn(sv,s,len); | |
6196 | return sv; | |
6197 | } | |
6198 | ||
954c1994 GS |
6199 | /* |
6200 | =for apidoc newSVpvn | |
6201 | ||
6202 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 6203 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 GS |
6204 | string. You are responsible for ensuring that the source string is at least |
6205 | C<len> bytes long. | |
6206 | ||
6207 | =cut | |
6208 | */ | |
6209 | ||
9da1e3b5 | 6210 | SV * |
864dbfa3 | 6211 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
6212 | { |
6213 | register SV *sv; | |
6214 | ||
6215 | new_SV(sv); | |
9da1e3b5 MUN |
6216 | sv_setpvn(sv,s,len); |
6217 | return sv; | |
6218 | } | |
6219 | ||
1c846c1f NIS |
6220 | /* |
6221 | =for apidoc newSVpvn_share | |
6222 | ||
645c22ef DM |
6223 | Creates a new SV with its SvPVX pointing to a shared string in the string |
6224 | table. If the string does not already exist in the table, it is created | |
6225 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
6226 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
6227 | otherwise the hash is computed. The idea here is that as the string table | |
6228 | is used for shared hash keys these strings will have SvPVX == HeKEY and | |
6229 | hash lookup will avoid string compare. | |
1c846c1f NIS |
6230 | |
6231 | =cut | |
6232 | */ | |
6233 | ||
6234 | SV * | |
c3654f1a | 6235 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
6236 | { |
6237 | register SV *sv; | |
c3654f1a IH |
6238 | bool is_utf8 = FALSE; |
6239 | if (len < 0) { | |
77caf834 | 6240 | STRLEN tmplen = -len; |
c3654f1a | 6241 | is_utf8 = TRUE; |
75a54232 JH |
6242 | /* See the note in hv.c:hv_fetch() --jhi */ |
6243 | src = (char*)bytes_from_utf8((U8*)src, &tmplen, &is_utf8); | |
6244 | len = tmplen; | |
6245 | } | |
1c846c1f NIS |
6246 | if (!hash) |
6247 | PERL_HASH(hash, src, len); | |
6248 | new_SV(sv); | |
6249 | sv_upgrade(sv, SVt_PVIV); | |
c3654f1a | 6250 | SvPVX(sv) = sharepvn(src, is_utf8?-len:len, hash); |
1c846c1f NIS |
6251 | SvCUR(sv) = len; |
6252 | SvUVX(sv) = hash; | |
6253 | SvLEN(sv) = 0; | |
6254 | SvREADONLY_on(sv); | |
6255 | SvFAKE_on(sv); | |
6256 | SvPOK_on(sv); | |
c3654f1a IH |
6257 | if (is_utf8) |
6258 | SvUTF8_on(sv); | |
1c846c1f NIS |
6259 | return sv; |
6260 | } | |
6261 | ||
645c22ef | 6262 | |
cea2e8a9 | 6263 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
6264 | |
6265 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
6266 | * version of the main function, (which may itself be aliased to us). | |
6267 | * Don't access this version directly. | |
6268 | */ | |
6269 | ||
46fc3d4c | 6270 | SV * |
cea2e8a9 | 6271 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 6272 | { |
cea2e8a9 | 6273 | dTHX; |
46fc3d4c | 6274 | register SV *sv; |
6275 | va_list args; | |
46fc3d4c | 6276 | va_start(args, pat); |
c5be433b | 6277 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 6278 | va_end(args); |
6279 | return sv; | |
6280 | } | |
cea2e8a9 | 6281 | #endif |
46fc3d4c | 6282 | |
954c1994 GS |
6283 | /* |
6284 | =for apidoc newSVpvf | |
6285 | ||
645c22ef | 6286 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
6287 | C<sprintf>. |
6288 | ||
6289 | =cut | |
6290 | */ | |
6291 | ||
cea2e8a9 GS |
6292 | SV * |
6293 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
6294 | { | |
6295 | register SV *sv; | |
6296 | va_list args; | |
cea2e8a9 | 6297 | va_start(args, pat); |
c5be433b | 6298 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
6299 | va_end(args); |
6300 | return sv; | |
6301 | } | |
46fc3d4c | 6302 | |
645c22ef DM |
6303 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
6304 | ||
79072805 | 6305 | SV * |
c5be433b GS |
6306 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
6307 | { | |
6308 | register SV *sv; | |
6309 | new_SV(sv); | |
6310 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
6311 | return sv; | |
6312 | } | |
6313 | ||
954c1994 GS |
6314 | /* |
6315 | =for apidoc newSVnv | |
6316 | ||
6317 | Creates a new SV and copies a floating point value into it. | |
6318 | The reference count for the SV is set to 1. | |
6319 | ||
6320 | =cut | |
6321 | */ | |
6322 | ||
c5be433b | 6323 | SV * |
65202027 | 6324 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 6325 | { |
463ee0b2 | 6326 | register SV *sv; |
79072805 | 6327 | |
4561caa4 | 6328 | new_SV(sv); |
79072805 LW |
6329 | sv_setnv(sv,n); |
6330 | return sv; | |
6331 | } | |
6332 | ||
954c1994 GS |
6333 | /* |
6334 | =for apidoc newSViv | |
6335 | ||
6336 | Creates a new SV and copies an integer into it. The reference count for the | |
6337 | SV is set to 1. | |
6338 | ||
6339 | =cut | |
6340 | */ | |
6341 | ||
79072805 | 6342 | SV * |
864dbfa3 | 6343 | Perl_newSViv(pTHX_ IV i) |
79072805 | 6344 | { |
463ee0b2 | 6345 | register SV *sv; |
79072805 | 6346 | |
4561caa4 | 6347 | new_SV(sv); |
79072805 LW |
6348 | sv_setiv(sv,i); |
6349 | return sv; | |
6350 | } | |
6351 | ||
954c1994 | 6352 | /* |
1a3327fb JH |
6353 | =for apidoc newSVuv |
6354 | ||
6355 | Creates a new SV and copies an unsigned integer into it. | |
6356 | The reference count for the SV is set to 1. | |
6357 | ||
6358 | =cut | |
6359 | */ | |
6360 | ||
6361 | SV * | |
6362 | Perl_newSVuv(pTHX_ UV u) | |
6363 | { | |
6364 | register SV *sv; | |
6365 | ||
6366 | new_SV(sv); | |
6367 | sv_setuv(sv,u); | |
6368 | return sv; | |
6369 | } | |
6370 | ||
6371 | /* | |
954c1994 GS |
6372 | =for apidoc newRV_noinc |
6373 | ||
6374 | Creates an RV wrapper for an SV. The reference count for the original | |
6375 | SV is B<not> incremented. | |
6376 | ||
6377 | =cut | |
6378 | */ | |
6379 | ||
2304df62 | 6380 | SV * |
864dbfa3 | 6381 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
6382 | { |
6383 | register SV *sv; | |
6384 | ||
4561caa4 | 6385 | new_SV(sv); |
2304df62 | 6386 | sv_upgrade(sv, SVt_RV); |
76e3520e | 6387 | SvTEMP_off(tmpRef); |
d689ffdd | 6388 | SvRV(sv) = tmpRef; |
2304df62 | 6389 | SvROK_on(sv); |
2304df62 AD |
6390 | return sv; |
6391 | } | |
6392 | ||
ff276b08 | 6393 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
6394 | * newRV_inc is in fact #defined to newRV in sv.h |
6395 | */ | |
6396 | ||
5f05dabc | 6397 | SV * |
864dbfa3 | 6398 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 6399 | { |
5f6447b6 | 6400 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 6401 | } |
5f05dabc | 6402 | |
954c1994 GS |
6403 | /* |
6404 | =for apidoc newSVsv | |
6405 | ||
6406 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 6407 | (Uses C<sv_setsv>). |
954c1994 GS |
6408 | |
6409 | =cut | |
6410 | */ | |
6411 | ||
79072805 | 6412 | SV * |
864dbfa3 | 6413 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 6414 | { |
463ee0b2 | 6415 | register SV *sv; |
79072805 LW |
6416 | |
6417 | if (!old) | |
6418 | return Nullsv; | |
8990e307 | 6419 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 PM |
6420 | if (ckWARN_d(WARN_INTERNAL)) |
6421 | Perl_warner(aTHX_ WARN_INTERNAL, "semi-panic: attempt to dup freed string"); | |
79072805 LW |
6422 | return Nullsv; |
6423 | } | |
4561caa4 | 6424 | new_SV(sv); |
ff68c719 | 6425 | if (SvTEMP(old)) { |
6426 | SvTEMP_off(old); | |
463ee0b2 | 6427 | sv_setsv(sv,old); |
ff68c719 | 6428 | SvTEMP_on(old); |
79072805 LW |
6429 | } |
6430 | else | |
463ee0b2 LW |
6431 | sv_setsv(sv,old); |
6432 | return sv; | |
79072805 LW |
6433 | } |
6434 | ||
645c22ef DM |
6435 | /* |
6436 | =for apidoc sv_reset | |
6437 | ||
6438 | Underlying implementation for the C<reset> Perl function. | |
6439 | Note that the perl-level function is vaguely deprecated. | |
6440 | ||
6441 | =cut | |
6442 | */ | |
6443 | ||
79072805 | 6444 | void |
864dbfa3 | 6445 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 LW |
6446 | { |
6447 | register HE *entry; | |
6448 | register GV *gv; | |
6449 | register SV *sv; | |
6450 | register I32 i; | |
6451 | register PMOP *pm; | |
6452 | register I32 max; | |
4802d5d7 | 6453 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 6454 | |
49d8d3a1 MB |
6455 | if (!stash) |
6456 | return; | |
6457 | ||
79072805 LW |
6458 | if (!*s) { /* reset ?? searches */ |
6459 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 6460 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
6461 | } |
6462 | return; | |
6463 | } | |
6464 | ||
6465 | /* reset variables */ | |
6466 | ||
6467 | if (!HvARRAY(stash)) | |
6468 | return; | |
463ee0b2 LW |
6469 | |
6470 | Zero(todo, 256, char); | |
79072805 | 6471 | while (*s) { |
4802d5d7 | 6472 | i = (unsigned char)*s; |
79072805 LW |
6473 | if (s[1] == '-') { |
6474 | s += 2; | |
6475 | } | |
4802d5d7 | 6476 | max = (unsigned char)*s++; |
79072805 | 6477 | for ( ; i <= max; i++) { |
463ee0b2 LW |
6478 | todo[i] = 1; |
6479 | } | |
a0d0e21e | 6480 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 6481 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
6482 | entry; |
6483 | entry = HeNEXT(entry)) | |
6484 | { | |
1edc1566 | 6485 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 6486 | continue; |
1edc1566 | 6487 | gv = (GV*)HeVAL(entry); |
79072805 | 6488 | sv = GvSV(gv); |
9e35f4b3 GS |
6489 | if (SvTHINKFIRST(sv)) { |
6490 | if (!SvREADONLY(sv) && SvROK(sv)) | |
6491 | sv_unref(sv); | |
6492 | continue; | |
6493 | } | |
a0d0e21e | 6494 | (void)SvOK_off(sv); |
79072805 LW |
6495 | if (SvTYPE(sv) >= SVt_PV) { |
6496 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
6497 | if (SvPVX(sv) != Nullch) |
6498 | *SvPVX(sv) = '\0'; | |
44a8e56a | 6499 | SvTAINT(sv); |
79072805 LW |
6500 | } |
6501 | if (GvAV(gv)) { | |
6502 | av_clear(GvAV(gv)); | |
6503 | } | |
44a8e56a | 6504 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 6505 | hv_clear(GvHV(gv)); |
fa6a1c44 | 6506 | #ifdef USE_ENVIRON_ARRAY |
3280af22 | 6507 | if (gv == PL_envgv) |
79072805 | 6508 | environ[0] = Nullch; |
a0d0e21e | 6509 | #endif |
79072805 LW |
6510 | } |
6511 | } | |
6512 | } | |
6513 | } | |
6514 | } | |
6515 | ||
645c22ef DM |
6516 | /* |
6517 | =for apidoc sv_2io | |
6518 | ||
6519 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
6520 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
6521 | named after the PV if we're a string. | |
6522 | ||
6523 | =cut | |
6524 | */ | |
6525 | ||
46fc3d4c | 6526 | IO* |
864dbfa3 | 6527 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 6528 | { |
6529 | IO* io; | |
6530 | GV* gv; | |
2d8e6c8d | 6531 | STRLEN n_a; |
46fc3d4c | 6532 | |
6533 | switch (SvTYPE(sv)) { | |
6534 | case SVt_PVIO: | |
6535 | io = (IO*)sv; | |
6536 | break; | |
6537 | case SVt_PVGV: | |
6538 | gv = (GV*)sv; | |
6539 | io = GvIO(gv); | |
6540 | if (!io) | |
cea2e8a9 | 6541 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 6542 | break; |
6543 | default: | |
6544 | if (!SvOK(sv)) | |
cea2e8a9 | 6545 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 6546 | if (SvROK(sv)) |
6547 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 6548 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 6549 | if (gv) |
6550 | io = GvIO(gv); | |
6551 | else | |
6552 | io = 0; | |
6553 | if (!io) | |
cea2e8a9 | 6554 | Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a)); |
46fc3d4c | 6555 | break; |
6556 | } | |
6557 | return io; | |
6558 | } | |
6559 | ||
645c22ef DM |
6560 | /* |
6561 | =for apidoc sv_2cv | |
6562 | ||
6563 | Using various gambits, try to get a CV from an SV; in addition, try if | |
6564 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
6565 | ||
6566 | =cut | |
6567 | */ | |
6568 | ||
79072805 | 6569 | CV * |
864dbfa3 | 6570 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 LW |
6571 | { |
6572 | GV *gv; | |
6573 | CV *cv; | |
2d8e6c8d | 6574 | STRLEN n_a; |
79072805 LW |
6575 | |
6576 | if (!sv) | |
93a17b20 | 6577 | return *gvp = Nullgv, Nullcv; |
79072805 | 6578 | switch (SvTYPE(sv)) { |
79072805 LW |
6579 | case SVt_PVCV: |
6580 | *st = CvSTASH(sv); | |
6581 | *gvp = Nullgv; | |
6582 | return (CV*)sv; | |
6583 | case SVt_PVHV: | |
6584 | case SVt_PVAV: | |
6585 | *gvp = Nullgv; | |
6586 | return Nullcv; | |
8990e307 LW |
6587 | case SVt_PVGV: |
6588 | gv = (GV*)sv; | |
a0d0e21e | 6589 | *gvp = gv; |
8990e307 LW |
6590 | *st = GvESTASH(gv); |
6591 | goto fix_gv; | |
6592 | ||
79072805 | 6593 | default: |
a0d0e21e LW |
6594 | if (SvGMAGICAL(sv)) |
6595 | mg_get(sv); | |
6596 | if (SvROK(sv)) { | |
f5284f61 IZ |
6597 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
6598 | tryAMAGICunDEREF(to_cv); | |
6599 | ||
62f274bf GS |
6600 | sv = SvRV(sv); |
6601 | if (SvTYPE(sv) == SVt_PVCV) { | |
6602 | cv = (CV*)sv; | |
6603 | *gvp = Nullgv; | |
6604 | *st = CvSTASH(cv); | |
6605 | return cv; | |
6606 | } | |
6607 | else if(isGV(sv)) | |
6608 | gv = (GV*)sv; | |
6609 | else | |
cea2e8a9 | 6610 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 6611 | } |
62f274bf | 6612 | else if (isGV(sv)) |
79072805 LW |
6613 | gv = (GV*)sv; |
6614 | else | |
2d8e6c8d | 6615 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
6616 | *gvp = gv; |
6617 | if (!gv) | |
6618 | return Nullcv; | |
6619 | *st = GvESTASH(gv); | |
8990e307 | 6620 | fix_gv: |
8ebc5c01 | 6621 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 6622 | SV *tmpsv; |
748a9306 | 6623 | ENTER; |
4633a7c4 | 6624 | tmpsv = NEWSV(704,0); |
16660edb | 6625 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
6626 | /* XXX this is probably not what they think they're getting. |
6627 | * It has the same effect as "sub name;", i.e. just a forward | |
6628 | * declaration! */ | |
774d564b | 6629 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
6630 | newSVOP(OP_CONST, 0, tmpsv), |
6631 | Nullop, | |
8990e307 | 6632 | Nullop); |
748a9306 | 6633 | LEAVE; |
8ebc5c01 | 6634 | if (!GvCVu(gv)) |
cea2e8a9 | 6635 | Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a)); |
8990e307 | 6636 | } |
8ebc5c01 | 6637 | return GvCVu(gv); |
79072805 LW |
6638 | } |
6639 | } | |
6640 | ||
c461cf8f JH |
6641 | /* |
6642 | =for apidoc sv_true | |
6643 | ||
6644 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
6645 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
6646 | instead use an in-line version. | |
c461cf8f JH |
6647 | |
6648 | =cut | |
6649 | */ | |
6650 | ||
79072805 | 6651 | I32 |
864dbfa3 | 6652 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 6653 | { |
8990e307 LW |
6654 | if (!sv) |
6655 | return 0; | |
79072805 | 6656 | if (SvPOK(sv)) { |
4e35701f NIS |
6657 | register XPV* tXpv; |
6658 | if ((tXpv = (XPV*)SvANY(sv)) && | |
c2f1de04 | 6659 | (tXpv->xpv_cur > 1 || |
4e35701f | 6660 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
6661 | return 1; |
6662 | else | |
6663 | return 0; | |
6664 | } | |
6665 | else { | |
6666 | if (SvIOK(sv)) | |
463ee0b2 | 6667 | return SvIVX(sv) != 0; |
79072805 LW |
6668 | else { |
6669 | if (SvNOK(sv)) | |
463ee0b2 | 6670 | return SvNVX(sv) != 0.0; |
79072805 | 6671 | else |
463ee0b2 | 6672 | return sv_2bool(sv); |
79072805 LW |
6673 | } |
6674 | } | |
6675 | } | |
79072805 | 6676 | |
645c22ef DM |
6677 | /* |
6678 | =for apidoc sv_iv | |
6679 | ||
6680 | A private implementation of the C<SvIVx> macro for compilers which can't | |
6681 | cope with complex macro expressions. Always use the macro instead. | |
6682 | ||
6683 | =cut | |
6684 | */ | |
6685 | ||
ff68c719 | 6686 | IV |
864dbfa3 | 6687 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 6688 | { |
25da4f38 IZ |
6689 | if (SvIOK(sv)) { |
6690 | if (SvIsUV(sv)) | |
6691 | return (IV)SvUVX(sv); | |
ff68c719 | 6692 | return SvIVX(sv); |
25da4f38 | 6693 | } |
ff68c719 | 6694 | return sv_2iv(sv); |
85e6fe83 | 6695 | } |
85e6fe83 | 6696 | |
645c22ef DM |
6697 | /* |
6698 | =for apidoc sv_uv | |
6699 | ||
6700 | A private implementation of the C<SvUVx> macro for compilers which can't | |
6701 | cope with complex macro expressions. Always use the macro instead. | |
6702 | ||
6703 | =cut | |
6704 | */ | |
6705 | ||
ff68c719 | 6706 | UV |
864dbfa3 | 6707 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 6708 | { |
25da4f38 IZ |
6709 | if (SvIOK(sv)) { |
6710 | if (SvIsUV(sv)) | |
6711 | return SvUVX(sv); | |
6712 | return (UV)SvIVX(sv); | |
6713 | } | |
ff68c719 | 6714 | return sv_2uv(sv); |
6715 | } | |
85e6fe83 | 6716 | |
645c22ef DM |
6717 | /* |
6718 | =for apidoc sv_nv | |
6719 | ||
6720 | A private implementation of the C<SvNVx> macro for compilers which can't | |
6721 | cope with complex macro expressions. Always use the macro instead. | |
6722 | ||
6723 | =cut | |
6724 | */ | |
6725 | ||
65202027 | 6726 | NV |
864dbfa3 | 6727 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 6728 | { |
ff68c719 | 6729 | if (SvNOK(sv)) |
6730 | return SvNVX(sv); | |
6731 | return sv_2nv(sv); | |
79072805 | 6732 | } |
79072805 | 6733 | |
645c22ef DM |
6734 | /* |
6735 | =for apidoc sv_pv | |
6736 | ||
6737 | A private implementation of the C<SvPV_nolen> macro for compilers which can't | |
6738 | cope with complex macro expressions. Always use the macro instead. | |
6739 | ||
6740 | =cut | |
6741 | */ | |
6742 | ||
79072805 | 6743 | char * |
864dbfa3 | 6744 | Perl_sv_pv(pTHX_ SV *sv) |
1fa8b10d JD |
6745 | { |
6746 | STRLEN n_a; | |
6747 | ||
6748 | if (SvPOK(sv)) | |
6749 | return SvPVX(sv); | |
6750 | ||
6751 | return sv_2pv(sv, &n_a); | |
6752 | } | |
6753 | ||
645c22ef DM |
6754 | /* |
6755 | =for apidoc sv_pvn | |
6756 | ||
6757 | A private implementation of the C<SvPV> macro for compilers which can't | |
6758 | cope with complex macro expressions. Always use the macro instead. | |
6759 | ||
6760 | =cut | |
6761 | */ | |
6762 | ||
1fa8b10d | 6763 | char * |
864dbfa3 | 6764 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 6765 | { |
85e6fe83 LW |
6766 | if (SvPOK(sv)) { |
6767 | *lp = SvCUR(sv); | |
a0d0e21e | 6768 | return SvPVX(sv); |
85e6fe83 | 6769 | } |
463ee0b2 | 6770 | return sv_2pv(sv, lp); |
79072805 | 6771 | } |
79072805 | 6772 | |
6e9d1081 NC |
6773 | /* For -DCRIPPLED_CC only. See also C<sv_2pv_flags()>. |
6774 | */ | |
6775 | ||
6776 | char * | |
6777 | Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp) | |
6778 | { | |
6779 | if (SvPOK(sv)) { | |
6780 | *lp = SvCUR(sv); | |
6781 | return SvPVX(sv); | |
6782 | } | |
6783 | return sv_2pv_flags(sv, lp, 0); | |
6784 | } | |
6785 | ||
c461cf8f JH |
6786 | /* |
6787 | =for apidoc sv_pvn_force | |
6788 | ||
6789 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
6790 | A private implementation of the C<SvPV_force> macro for compilers which |
6791 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f JH |
6792 | |
6793 | =cut | |
6794 | */ | |
6795 | ||
a0d0e21e | 6796 | char * |
864dbfa3 | 6797 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) |
a0d0e21e | 6798 | { |
36f65ada | 6799 | return sv_pvn_force_flags(sv, lp, SV_GMAGIC); |
8d6d96c1 HS |
6800 | } |
6801 | ||
6802 | /* | |
6803 | =for apidoc sv_pvn_force_flags | |
6804 | ||
6805 | Get a sensible string out of the SV somehow. | |
6806 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
6807 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
6808 | implemented in terms of this function. | |
645c22ef DM |
6809 | You normally want to use the various wrapper macros instead: see |
6810 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
6811 | |
6812 | =cut | |
6813 | */ | |
6814 | ||
6815 | char * | |
6816 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
6817 | { | |
a0d0e21e LW |
6818 | char *s; |
6819 | ||
6fc92669 GS |
6820 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
6821 | sv_force_normal(sv); | |
1c846c1f | 6822 | |
a0d0e21e LW |
6823 | if (SvPOK(sv)) { |
6824 | *lp = SvCUR(sv); | |
6825 | } | |
6826 | else { | |
748a9306 | 6827 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
cea2e8a9 | 6828 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
53e06cf0 | 6829 | OP_NAME(PL_op)); |
a0d0e21e | 6830 | } |
4633a7c4 | 6831 | else |
8d6d96c1 | 6832 | s = sv_2pv_flags(sv, lp, flags); |
a0d0e21e LW |
6833 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
6834 | STRLEN len = *lp; | |
1c846c1f | 6835 | |
a0d0e21e LW |
6836 | if (SvROK(sv)) |
6837 | sv_unref(sv); | |
6838 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
6839 | SvGROW(sv, len + 1); | |
6840 | Move(s,SvPVX(sv),len,char); | |
6841 | SvCUR_set(sv, len); | |
6842 | *SvEND(sv) = '\0'; | |
6843 | } | |
6844 | if (!SvPOK(sv)) { | |
6845 | SvPOK_on(sv); /* validate pointer */ | |
6846 | SvTAINT(sv); | |
1d7c1841 GS |
6847 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
6848 | PTR2UV(sv),SvPVX(sv))); | |
a0d0e21e LW |
6849 | } |
6850 | } | |
6851 | return SvPVX(sv); | |
6852 | } | |
6853 | ||
645c22ef DM |
6854 | /* |
6855 | =for apidoc sv_pvbyte | |
6856 | ||
6857 | A private implementation of the C<SvPVbyte_nolen> macro for compilers | |
6858 | which can't cope with complex macro expressions. Always use the macro | |
6859 | instead. | |
6860 | ||
6861 | =cut | |
6862 | */ | |
6863 | ||
a0d0e21e | 6864 | char * |
7340a771 GS |
6865 | Perl_sv_pvbyte(pTHX_ SV *sv) |
6866 | { | |
ffebcc3e | 6867 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6868 | return sv_pv(sv); |
6869 | } | |
6870 | ||
645c22ef DM |
6871 | /* |
6872 | =for apidoc sv_pvbyten | |
6873 | ||
6874 | A private implementation of the C<SvPVbyte> macro for compilers | |
6875 | which can't cope with complex macro expressions. Always use the macro | |
6876 | instead. | |
6877 | ||
6878 | =cut | |
6879 | */ | |
6880 | ||
7340a771 GS |
6881 | char * |
6882 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
6883 | { | |
ffebcc3e | 6884 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6885 | return sv_pvn(sv,lp); |
6886 | } | |
6887 | ||
645c22ef DM |
6888 | /* |
6889 | =for apidoc sv_pvbyten_force | |
6890 | ||
6891 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
6892 | which can't cope with complex macro expressions. Always use the macro | |
6893 | instead. | |
6894 | ||
6895 | =cut | |
6896 | */ | |
6897 | ||
7340a771 GS |
6898 | char * |
6899 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
6900 | { | |
ffebcc3e | 6901 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
6902 | return sv_pvn_force(sv,lp); |
6903 | } | |
6904 | ||
645c22ef DM |
6905 | /* |
6906 | =for apidoc sv_pvutf8 | |
6907 | ||
6908 | A private implementation of the C<SvPVutf8_nolen> macro for compilers | |
6909 | which can't cope with complex macro expressions. Always use the macro | |
6910 | instead. | |
6911 | ||
6912 | =cut | |
6913 | */ | |
6914 | ||
7340a771 GS |
6915 | char * |
6916 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
6917 | { | |
560a288e | 6918 | sv_utf8_upgrade(sv); |
7340a771 GS |
6919 | return sv_pv(sv); |
6920 | } | |
6921 | ||
645c22ef DM |
6922 | /* |
6923 | =for apidoc sv_pvutf8n | |
6924 | ||
6925 | A private implementation of the C<SvPVutf8> macro for compilers | |
6926 | which can't cope with complex macro expressions. Always use the macro | |
6927 | instead. | |
6928 | ||
6929 | =cut | |
6930 | */ | |
6931 | ||
7340a771 GS |
6932 | char * |
6933 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
6934 | { | |
560a288e | 6935 | sv_utf8_upgrade(sv); |
7340a771 GS |
6936 | return sv_pvn(sv,lp); |
6937 | } | |
6938 | ||
c461cf8f JH |
6939 | /* |
6940 | =for apidoc sv_pvutf8n_force | |
6941 | ||
645c22ef DM |
6942 | A private implementation of the C<SvPVutf8_force> macro for compilers |
6943 | which can't cope with complex macro expressions. Always use the macro | |
6944 | instead. | |
c461cf8f JH |
6945 | |
6946 | =cut | |
6947 | */ | |
6948 | ||
7340a771 GS |
6949 | char * |
6950 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
6951 | { | |
560a288e | 6952 | sv_utf8_upgrade(sv); |
7340a771 GS |
6953 | return sv_pvn_force(sv,lp); |
6954 | } | |
6955 | ||
c461cf8f JH |
6956 | /* |
6957 | =for apidoc sv_reftype | |
6958 | ||
6959 | Returns a string describing what the SV is a reference to. | |
6960 | ||
6961 | =cut | |
6962 | */ | |
6963 | ||
7340a771 | 6964 | char * |
864dbfa3 | 6965 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e | 6966 | { |
c86bf373 AMS |
6967 | if (ob && SvOBJECT(sv)) { |
6968 | HV *svs = SvSTASH(sv); | |
6969 | /* [20011101.072] This bandaid for C<package;> should eventually | |
6970 | be removed. AMS 20011103 */ | |
6971 | return (svs ? HvNAME(svs) : "<none>"); | |
6972 | } | |
a0d0e21e LW |
6973 | else { |
6974 | switch (SvTYPE(sv)) { | |
6975 | case SVt_NULL: | |
6976 | case SVt_IV: | |
6977 | case SVt_NV: | |
6978 | case SVt_RV: | |
6979 | case SVt_PV: | |
6980 | case SVt_PVIV: | |
6981 | case SVt_PVNV: | |
6982 | case SVt_PVMG: | |
6983 | case SVt_PVBM: | |
6984 | if (SvROK(sv)) | |
6985 | return "REF"; | |
6986 | else | |
6987 | return "SCALAR"; | |
6988 | case SVt_PVLV: return "LVALUE"; | |
6989 | case SVt_PVAV: return "ARRAY"; | |
6990 | case SVt_PVHV: return "HASH"; | |
6991 | case SVt_PVCV: return "CODE"; | |
6992 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 6993 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 6994 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
6995 | default: return "UNKNOWN"; |
6996 | } | |
6997 | } | |
6998 | } | |
6999 | ||
954c1994 GS |
7000 | /* |
7001 | =for apidoc sv_isobject | |
7002 | ||
7003 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
7004 | object. If the SV is not an RV, or if the object is not blessed, then this | |
7005 | will return false. | |
7006 | ||
7007 | =cut | |
7008 | */ | |
7009 | ||
463ee0b2 | 7010 | int |
864dbfa3 | 7011 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 7012 | { |
68dc0745 | 7013 | if (!sv) |
7014 | return 0; | |
7015 | if (SvGMAGICAL(sv)) | |
7016 | mg_get(sv); | |
85e6fe83 LW |
7017 | if (!SvROK(sv)) |
7018 | return 0; | |
7019 | sv = (SV*)SvRV(sv); | |
7020 | if (!SvOBJECT(sv)) | |
7021 | return 0; | |
7022 | return 1; | |
7023 | } | |
7024 | ||
954c1994 GS |
7025 | /* |
7026 | =for apidoc sv_isa | |
7027 | ||
7028 | Returns a boolean indicating whether the SV is blessed into the specified | |
7029 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
7030 | an inheritance relationship. | |
7031 | ||
7032 | =cut | |
7033 | */ | |
7034 | ||
85e6fe83 | 7035 | int |
864dbfa3 | 7036 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 7037 | { |
68dc0745 | 7038 | if (!sv) |
7039 | return 0; | |
7040 | if (SvGMAGICAL(sv)) | |
7041 | mg_get(sv); | |
ed6116ce | 7042 | if (!SvROK(sv)) |
463ee0b2 | 7043 | return 0; |
ed6116ce LW |
7044 | sv = (SV*)SvRV(sv); |
7045 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
7046 | return 0; |
7047 | ||
7048 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
7049 | } | |
7050 | ||
954c1994 GS |
7051 | /* |
7052 | =for apidoc newSVrv | |
7053 | ||
7054 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
7055 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
7056 | be blessed in the specified package. The new SV is returned and its | |
7057 | reference count is 1. | |
7058 | ||
7059 | =cut | |
7060 | */ | |
7061 | ||
463ee0b2 | 7062 | SV* |
864dbfa3 | 7063 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 7064 | { |
463ee0b2 LW |
7065 | SV *sv; |
7066 | ||
4561caa4 | 7067 | new_SV(sv); |
51cf62d8 | 7068 | |
2213622d | 7069 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 | 7070 | SvAMAGIC_off(rv); |
51cf62d8 | 7071 | |
0199fce9 JD |
7072 | if (SvTYPE(rv) >= SVt_PVMG) { |
7073 | U32 refcnt = SvREFCNT(rv); | |
7074 | SvREFCNT(rv) = 0; | |
7075 | sv_clear(rv); | |
7076 | SvFLAGS(rv) = 0; | |
7077 | SvREFCNT(rv) = refcnt; | |
7078 | } | |
7079 | ||
51cf62d8 | 7080 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
7081 | sv_upgrade(rv, SVt_RV); |
7082 | else if (SvTYPE(rv) > SVt_RV) { | |
7083 | (void)SvOOK_off(rv); | |
7084 | if (SvPVX(rv) && SvLEN(rv)) | |
7085 | Safefree(SvPVX(rv)); | |
7086 | SvCUR_set(rv, 0); | |
7087 | SvLEN_set(rv, 0); | |
7088 | } | |
51cf62d8 OT |
7089 | |
7090 | (void)SvOK_off(rv); | |
053fc874 | 7091 | SvRV(rv) = sv; |
ed6116ce | 7092 | SvROK_on(rv); |
463ee0b2 | 7093 | |
a0d0e21e LW |
7094 | if (classname) { |
7095 | HV* stash = gv_stashpv(classname, TRUE); | |
7096 | (void)sv_bless(rv, stash); | |
7097 | } | |
7098 | return sv; | |
7099 | } | |
7100 | ||
954c1994 GS |
7101 | /* |
7102 | =for apidoc sv_setref_pv | |
7103 | ||
7104 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
7105 | argument will be upgraded to an RV. That RV will be modified to point to | |
7106 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
7107 | into the SV. The C<classname> argument indicates the package for the | |
7108 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7109 | will be returned and will have a reference count of 1. | |
7110 | ||
7111 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
7112 | objects will become corrupted by the pointer copy process. | |
7113 | ||
7114 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
7115 | ||
7116 | =cut | |
7117 | */ | |
7118 | ||
a0d0e21e | 7119 | SV* |
864dbfa3 | 7120 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 7121 | { |
189b2af5 | 7122 | if (!pv) { |
3280af22 | 7123 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
7124 | SvSETMAGIC(rv); |
7125 | } | |
a0d0e21e | 7126 | else |
56431972 | 7127 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
7128 | return rv; |
7129 | } | |
7130 | ||
954c1994 GS |
7131 | /* |
7132 | =for apidoc sv_setref_iv | |
7133 | ||
7134 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
7135 | argument will be upgraded to an RV. That RV will be modified to point to | |
7136 | the new SV. The C<classname> argument indicates the package for the | |
7137 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7138 | will be returned and will have a reference count of 1. | |
7139 | ||
7140 | =cut | |
7141 | */ | |
7142 | ||
a0d0e21e | 7143 | SV* |
864dbfa3 | 7144 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
7145 | { |
7146 | sv_setiv(newSVrv(rv,classname), iv); | |
7147 | return rv; | |
7148 | } | |
7149 | ||
954c1994 | 7150 | /* |
e1c57cef JH |
7151 | =for apidoc sv_setref_uv |
7152 | ||
7153 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
7154 | argument will be upgraded to an RV. That RV will be modified to point to | |
7155 | the new SV. The C<classname> argument indicates the package for the | |
7156 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7157 | will be returned and will have a reference count of 1. | |
7158 | ||
7159 | =cut | |
7160 | */ | |
7161 | ||
7162 | SV* | |
7163 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
7164 | { | |
7165 | sv_setuv(newSVrv(rv,classname), uv); | |
7166 | return rv; | |
7167 | } | |
7168 | ||
7169 | /* | |
954c1994 GS |
7170 | =for apidoc sv_setref_nv |
7171 | ||
7172 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
7173 | argument will be upgraded to an RV. That RV will be modified to point to | |
7174 | the new SV. The C<classname> argument indicates the package for the | |
7175 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
7176 | will be returned and will have a reference count of 1. | |
7177 | ||
7178 | =cut | |
7179 | */ | |
7180 | ||
a0d0e21e | 7181 | SV* |
65202027 | 7182 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
7183 | { |
7184 | sv_setnv(newSVrv(rv,classname), nv); | |
7185 | return rv; | |
7186 | } | |
463ee0b2 | 7187 | |
954c1994 GS |
7188 | /* |
7189 | =for apidoc sv_setref_pvn | |
7190 | ||
7191 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
7192 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
7193 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
7194 | argument indicates the package for the blessing. Set C<classname> to | |
7195 | C<Nullch> to avoid the blessing. The new SV will be returned and will have | |
7196 | a reference count of 1. | |
7197 | ||
7198 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
7199 | ||
7200 | =cut | |
7201 | */ | |
7202 | ||
a0d0e21e | 7203 | SV* |
864dbfa3 | 7204 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
7205 | { |
7206 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
7207 | return rv; |
7208 | } | |
7209 | ||
954c1994 GS |
7210 | /* |
7211 | =for apidoc sv_bless | |
7212 | ||
7213 | Blesses an SV into a specified package. The SV must be an RV. The package | |
7214 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
7215 | of the SV is unaffected. | |
7216 | ||
7217 | =cut | |
7218 | */ | |
7219 | ||
a0d0e21e | 7220 | SV* |
864dbfa3 | 7221 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 7222 | { |
76e3520e | 7223 | SV *tmpRef; |
a0d0e21e | 7224 | if (!SvROK(sv)) |
cea2e8a9 | 7225 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
7226 | tmpRef = SvRV(sv); |
7227 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
7228 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 7229 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
7230 | if (SvOBJECT(tmpRef)) { |
7231 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7232 | --PL_sv_objcount; |
76e3520e | 7233 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 7234 | } |
a0d0e21e | 7235 | } |
76e3520e GS |
7236 | SvOBJECT_on(tmpRef); |
7237 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7238 | ++PL_sv_objcount; |
76e3520e GS |
7239 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
7240 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e | 7241 | |
2e3febc6 CS |
7242 | if (Gv_AMG(stash)) |
7243 | SvAMAGIC_on(sv); | |
7244 | else | |
7245 | SvAMAGIC_off(sv); | |
a0d0e21e | 7246 | |
1edbfb88 AB |
7247 | if(SvSMAGICAL(tmpRef)) |
7248 | if(mg_find(tmpRef, PERL_MAGIC_ext) || mg_find(tmpRef, PERL_MAGIC_uvar)) | |
7249 | mg_set(tmpRef); | |
7250 | ||
7251 | ||
ecdeb87c | 7252 | |
a0d0e21e LW |
7253 | return sv; |
7254 | } | |
7255 | ||
645c22ef DM |
7256 | /* Downgrades a PVGV to a PVMG. |
7257 | * | |
7258 | * XXX This function doesn't actually appear to be used anywhere | |
7259 | * DAPM 15-Jun-01 | |
7260 | */ | |
7261 | ||
76e3520e | 7262 | STATIC void |
cea2e8a9 | 7263 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 7264 | { |
850fabdf GS |
7265 | void *xpvmg; |
7266 | ||
a0d0e21e LW |
7267 | assert(SvTYPE(sv) == SVt_PVGV); |
7268 | SvFAKE_off(sv); | |
7269 | if (GvGP(sv)) | |
1edc1566 | 7270 | gp_free((GV*)sv); |
e826b3c7 GS |
7271 | if (GvSTASH(sv)) { |
7272 | SvREFCNT_dec(GvSTASH(sv)); | |
7273 | GvSTASH(sv) = Nullhv; | |
7274 | } | |
14befaf4 | 7275 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 7276 | Safefree(GvNAME(sv)); |
a5f75d66 | 7277 | GvMULTI_off(sv); |
850fabdf GS |
7278 | |
7279 | /* need to keep SvANY(sv) in the right arena */ | |
7280 | xpvmg = new_XPVMG(); | |
7281 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
7282 | del_XPVGV(SvANY(sv)); | |
7283 | SvANY(sv) = xpvmg; | |
7284 | ||
a0d0e21e LW |
7285 | SvFLAGS(sv) &= ~SVTYPEMASK; |
7286 | SvFLAGS(sv) |= SVt_PVMG; | |
7287 | } | |
7288 | ||
954c1994 | 7289 | /* |
840a7b70 | 7290 | =for apidoc sv_unref_flags |
954c1994 GS |
7291 | |
7292 | Unsets the RV status of the SV, and decrements the reference count of | |
7293 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
7294 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
7295 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
7296 | (otherwise the decrementing is conditional on the reference count being | |
7297 | different from one or the reference being a readonly SV). | |
7889fe52 | 7298 | See C<SvROK_off>. |
954c1994 GS |
7299 | |
7300 | =cut | |
7301 | */ | |
7302 | ||
ed6116ce | 7303 | void |
840a7b70 | 7304 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 7305 | { |
a0d0e21e | 7306 | SV* rv = SvRV(sv); |
810b8aa5 GS |
7307 | |
7308 | if (SvWEAKREF(sv)) { | |
7309 | sv_del_backref(sv); | |
7310 | SvWEAKREF_off(sv); | |
7311 | SvRV(sv) = 0; | |
7312 | return; | |
7313 | } | |
ed6116ce LW |
7314 | SvRV(sv) = 0; |
7315 | SvROK_off(sv); | |
840a7b70 | 7316 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv) || flags) /* SV_IMMEDIATE_UNREF */ |
4633a7c4 | 7317 | SvREFCNT_dec(rv); |
840a7b70 | 7318 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 7319 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 7320 | } |
8990e307 | 7321 | |
840a7b70 IZ |
7322 | /* |
7323 | =for apidoc sv_unref | |
7324 | ||
7325 | Unsets the RV status of the SV, and decrements the reference count of | |
7326 | whatever was being referenced by the RV. This can almost be thought of | |
7327 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 7328 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
7329 | |
7330 | =cut | |
7331 | */ | |
7332 | ||
7333 | void | |
7334 | Perl_sv_unref(pTHX_ SV *sv) | |
7335 | { | |
7336 | sv_unref_flags(sv, 0); | |
7337 | } | |
7338 | ||
645c22ef DM |
7339 | /* |
7340 | =for apidoc sv_taint | |
7341 | ||
7342 | Taint an SV. Use C<SvTAINTED_on> instead. | |
7343 | =cut | |
7344 | */ | |
7345 | ||
bbce6d69 | 7346 | void |
864dbfa3 | 7347 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 7348 | { |
14befaf4 | 7349 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 7350 | } |
7351 | ||
645c22ef DM |
7352 | /* |
7353 | =for apidoc sv_untaint | |
7354 | ||
7355 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
7356 | =cut | |
7357 | */ | |
7358 | ||
bbce6d69 | 7359 | void |
864dbfa3 | 7360 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 7361 | { |
13f57bf8 | 7362 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7363 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 7364 | if (mg) |
565764a8 | 7365 | mg->mg_len &= ~1; |
36477c24 | 7366 | } |
bbce6d69 | 7367 | } |
7368 | ||
645c22ef DM |
7369 | /* |
7370 | =for apidoc sv_tainted | |
7371 | ||
7372 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
7373 | =cut | |
7374 | */ | |
7375 | ||
bbce6d69 | 7376 | bool |
864dbfa3 | 7377 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 7378 | { |
13f57bf8 | 7379 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 7380 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 7381 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 7382 | return TRUE; |
7383 | } | |
7384 | return FALSE; | |
bbce6d69 | 7385 | } |
7386 | ||
954c1994 GS |
7387 | /* |
7388 | =for apidoc sv_setpviv | |
7389 | ||
7390 | Copies an integer into the given SV, also updating its string value. | |
7391 | Does not handle 'set' magic. See C<sv_setpviv_mg>. | |
7392 | ||
7393 | =cut | |
7394 | */ | |
7395 | ||
84902520 | 7396 | void |
864dbfa3 | 7397 | Perl_sv_setpviv(pTHX_ SV *sv, IV iv) |
84902520 | 7398 | { |
25da4f38 IZ |
7399 | char buf[TYPE_CHARS(UV)]; |
7400 | char *ebuf; | |
7401 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
84902520 | 7402 | |
25da4f38 | 7403 | sv_setpvn(sv, ptr, ebuf - ptr); |
84902520 TB |
7404 | } |
7405 | ||
954c1994 GS |
7406 | /* |
7407 | =for apidoc sv_setpviv_mg | |
7408 | ||
7409 | Like C<sv_setpviv>, but also handles 'set' magic. | |
7410 | ||
7411 | =cut | |
7412 | */ | |
7413 | ||
ef50df4b | 7414 | void |
864dbfa3 | 7415 | Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) |
ef50df4b | 7416 | { |
25da4f38 IZ |
7417 | char buf[TYPE_CHARS(UV)]; |
7418 | char *ebuf; | |
7419 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
7420 | ||
7421 | sv_setpvn(sv, ptr, ebuf - ptr); | |
ef50df4b GS |
7422 | SvSETMAGIC(sv); |
7423 | } | |
7424 | ||
cea2e8a9 | 7425 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7426 | |
7427 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7428 | * version of the main function, (which may itself be aliased to us). | |
7429 | * Don't access this version directly. | |
7430 | */ | |
7431 | ||
cea2e8a9 GS |
7432 | void |
7433 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
7434 | { | |
7435 | dTHX; | |
7436 | va_list args; | |
7437 | va_start(args, pat); | |
c5be433b | 7438 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
7439 | va_end(args); |
7440 | } | |
7441 | ||
645c22ef DM |
7442 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7443 | * version of the main function, (which may itself be aliased to us). | |
7444 | * Don't access this version directly. | |
7445 | */ | |
cea2e8a9 GS |
7446 | |
7447 | void | |
7448 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7449 | { | |
7450 | dTHX; | |
7451 | va_list args; | |
7452 | va_start(args, pat); | |
c5be433b | 7453 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 7454 | va_end(args); |
cea2e8a9 GS |
7455 | } |
7456 | #endif | |
7457 | ||
954c1994 GS |
7458 | /* |
7459 | =for apidoc sv_setpvf | |
7460 | ||
7461 | Processes its arguments like C<sprintf> and sets an SV to the formatted | |
7462 | output. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
7463 | ||
7464 | =cut | |
7465 | */ | |
7466 | ||
46fc3d4c | 7467 | void |
864dbfa3 | 7468 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7469 | { |
7470 | va_list args; | |
46fc3d4c | 7471 | va_start(args, pat); |
c5be433b | 7472 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 7473 | va_end(args); |
7474 | } | |
7475 | ||
645c22ef DM |
7476 | /* backend for C<sv_setpvf> and C<sv_setpvf_nocontext> */ |
7477 | ||
c5be433b GS |
7478 | void |
7479 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
7480 | { | |
7481 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7482 | } | |
ef50df4b | 7483 | |
954c1994 GS |
7484 | /* |
7485 | =for apidoc sv_setpvf_mg | |
7486 | ||
7487 | Like C<sv_setpvf>, but also handles 'set' magic. | |
7488 | ||
7489 | =cut | |
7490 | */ | |
7491 | ||
ef50df4b | 7492 | void |
864dbfa3 | 7493 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7494 | { |
7495 | va_list args; | |
ef50df4b | 7496 | va_start(args, pat); |
c5be433b | 7497 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 7498 | va_end(args); |
c5be433b GS |
7499 | } |
7500 | ||
645c22ef DM |
7501 | /* backend for C<sv_setpvf_mg> C<setpvf_mg_nocontext> */ |
7502 | ||
c5be433b GS |
7503 | void |
7504 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7505 | { | |
7506 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7507 | SvSETMAGIC(sv); |
7508 | } | |
7509 | ||
cea2e8a9 | 7510 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7511 | |
7512 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7513 | * version of the main function, (which may itself be aliased to us). | |
7514 | * Don't access this version directly. | |
7515 | */ | |
7516 | ||
cea2e8a9 GS |
7517 | void |
7518 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
7519 | { | |
7520 | dTHX; | |
7521 | va_list args; | |
7522 | va_start(args, pat); | |
c5be433b | 7523 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
7524 | va_end(args); |
7525 | } | |
7526 | ||
645c22ef DM |
7527 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
7528 | * version of the main function, (which may itself be aliased to us). | |
7529 | * Don't access this version directly. | |
7530 | */ | |
7531 | ||
cea2e8a9 GS |
7532 | void |
7533 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
7534 | { | |
7535 | dTHX; | |
7536 | va_list args; | |
7537 | va_start(args, pat); | |
c5be433b | 7538 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 7539 | va_end(args); |
cea2e8a9 GS |
7540 | } |
7541 | #endif | |
7542 | ||
954c1994 GS |
7543 | /* |
7544 | =for apidoc sv_catpvf | |
7545 | ||
d5ce4a7c GA |
7546 | Processes its arguments like C<sprintf> and appends the formatted |
7547 | output to an SV. If the appended data contains "wide" characters | |
7548 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
7549 | and characters >255 formatted with %c), the original SV might get | |
7550 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. | |
7551 | C<SvSETMAGIC()> must typically be called after calling this function | |
7552 | to handle 'set' magic. | |
954c1994 | 7553 | |
d5ce4a7c | 7554 | =cut */ |
954c1994 | 7555 | |
46fc3d4c | 7556 | void |
864dbfa3 | 7557 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 7558 | { |
7559 | va_list args; | |
46fc3d4c | 7560 | va_start(args, pat); |
c5be433b | 7561 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 7562 | va_end(args); |
7563 | } | |
7564 | ||
645c22ef DM |
7565 | /* backend for C<sv_catpvf> and C<catpvf_mg_nocontext> */ |
7566 | ||
ef50df4b | 7567 | void |
c5be433b GS |
7568 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
7569 | { | |
7570 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7571 | } | |
7572 | ||
954c1994 GS |
7573 | /* |
7574 | =for apidoc sv_catpvf_mg | |
7575 | ||
7576 | Like C<sv_catpvf>, but also handles 'set' magic. | |
7577 | ||
7578 | =cut | |
7579 | */ | |
7580 | ||
c5be433b | 7581 | void |
864dbfa3 | 7582 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
7583 | { |
7584 | va_list args; | |
ef50df4b | 7585 | va_start(args, pat); |
c5be433b | 7586 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 7587 | va_end(args); |
c5be433b GS |
7588 | } |
7589 | ||
645c22ef DM |
7590 | /* backend for C<catpvf_mg> and C<catpvf_mg_nocontext> */ |
7591 | ||
c5be433b GS |
7592 | void |
7593 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
7594 | { | |
7595 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
7596 | SvSETMAGIC(sv); |
7597 | } | |
7598 | ||
954c1994 GS |
7599 | /* |
7600 | =for apidoc sv_vsetpvfn | |
7601 | ||
7602 | Works like C<vcatpvfn> but copies the text into the SV instead of | |
7603 | appending it. | |
7604 | ||
645c22ef DM |
7605 | Usually used via one of its frontends C<sv_setpvf> and C<sv_setpvf_mg>. |
7606 | ||
954c1994 GS |
7607 | =cut |
7608 | */ | |
7609 | ||
46fc3d4c | 7610 | void |
7d5ea4e7 | 7611 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7612 | { |
7613 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 7614 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 7615 | } |
7616 | ||
645c22ef DM |
7617 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
7618 | ||
2d00ba3b | 7619 | STATIC I32 |
9dd79c3f | 7620 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
7621 | { |
7622 | I32 var = 0; | |
7623 | switch (**pattern) { | |
7624 | case '1': case '2': case '3': | |
7625 | case '4': case '5': case '6': | |
7626 | case '7': case '8': case '9': | |
7627 | while (isDIGIT(**pattern)) | |
7628 | var = var * 10 + (*(*pattern)++ - '0'); | |
7629 | } | |
7630 | return var; | |
7631 | } | |
9dd79c3f | 7632 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 7633 | |
954c1994 GS |
7634 | /* |
7635 | =for apidoc sv_vcatpvfn | |
7636 | ||
7637 | Processes its arguments like C<vsprintf> and appends the formatted output | |
7638 | to an SV. Uses an array of SVs if the C style variable argument list is | |
7639 | missing (NULL). When running with taint checks enabled, indicates via | |
7640 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
7641 | locales). | |
7642 | ||
645c22ef DM |
7643 | Usually used via one of its frontends C<sv_catpvf> and C<sv_catpvf_mg>. |
7644 | ||
954c1994 GS |
7645 | =cut |
7646 | */ | |
7647 | ||
46fc3d4c | 7648 | void |
7d5ea4e7 | 7649 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 7650 | { |
7651 | char *p; | |
7652 | char *q; | |
7653 | char *patend; | |
fc36a67e | 7654 | STRLEN origlen; |
46fc3d4c | 7655 | I32 svix = 0; |
c635e13b | 7656 | static char nullstr[] = "(null)"; |
9c5ffd7c | 7657 | SV *argsv = Nullsv; |
46fc3d4c | 7658 | |
7659 | /* no matter what, this is a string now */ | |
fc36a67e | 7660 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 7661 | |
fc36a67e | 7662 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 7663 | if (patlen == 0) |
7664 | return; | |
fc36a67e | 7665 | if (patlen == 2 && pat[0] == '%') { |
7666 | switch (pat[1]) { | |
7667 | case 's': | |
c635e13b | 7668 | if (args) { |
7669 | char *s = va_arg(*args, char*); | |
7670 | sv_catpv(sv, s ? s : nullstr); | |
7671 | } | |
7e2040f0 | 7672 | else if (svix < svmax) { |
fc36a67e | 7673 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
7674 | if (DO_UTF8(*svargs)) |
7675 | SvUTF8_on(sv); | |
7676 | } | |
fc36a67e | 7677 | return; |
7678 | case '_': | |
7679 | if (args) { | |
7e2040f0 GS |
7680 | argsv = va_arg(*args, SV*); |
7681 | sv_catsv(sv, argsv); | |
7682 | if (DO_UTF8(argsv)) | |
7683 | SvUTF8_on(sv); | |
fc36a67e | 7684 | return; |
7685 | } | |
7686 | /* See comment on '_' below */ | |
7687 | break; | |
7688 | } | |
46fc3d4c | 7689 | } |
7690 | ||
7691 | patend = (char*)pat + patlen; | |
7692 | for (p = (char*)pat; p < patend; p = q) { | |
7693 | bool alt = FALSE; | |
7694 | bool left = FALSE; | |
b22c7a20 | 7695 | bool vectorize = FALSE; |
211dfcf1 | 7696 | bool vectorarg = FALSE; |
b2e23cf9 | 7697 | bool vec_utf = FALSE; |
46fc3d4c | 7698 | char fill = ' '; |
7699 | char plus = 0; | |
7700 | char intsize = 0; | |
7701 | STRLEN width = 0; | |
fc36a67e | 7702 | STRLEN zeros = 0; |
46fc3d4c | 7703 | bool has_precis = FALSE; |
7704 | STRLEN precis = 0; | |
7e2040f0 | 7705 | bool is_utf = FALSE; |
eb3fce90 | 7706 | |
46fc3d4c | 7707 | char esignbuf[4]; |
ad391ad9 | 7708 | U8 utf8buf[UTF8_MAXLEN+1]; |
46fc3d4c | 7709 | STRLEN esignlen = 0; |
7710 | ||
7711 | char *eptr = Nullch; | |
fc36a67e | 7712 | STRLEN elen = 0; |
089c015b JH |
7713 | /* Times 4: a decimal digit takes more than 3 binary digits. |
7714 | * NV_DIG: mantissa takes than many decimal digits. | |
7715 | * Plus 32: Playing safe. */ | |
7716 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
2d4389e4 JH |
7717 | /* large enough for "%#.#f" --chip */ |
7718 | /* what about long double NVs? --jhi */ | |
b22c7a20 GS |
7719 | |
7720 | SV *vecsv; | |
a05b299f | 7721 | U8 *vecstr = Null(U8*); |
b22c7a20 | 7722 | STRLEN veclen = 0; |
46fc3d4c | 7723 | char c; |
7724 | int i; | |
9c5ffd7c | 7725 | unsigned base = 0; |
8c8eb53c RB |
7726 | IV iv = 0; |
7727 | UV uv = 0; | |
65202027 | 7728 | NV nv; |
46fc3d4c | 7729 | STRLEN have; |
7730 | STRLEN need; | |
7731 | STRLEN gap; | |
b22c7a20 GS |
7732 | char *dotstr = "."; |
7733 | STRLEN dotstrlen = 1; | |
211dfcf1 | 7734 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 7735 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
7736 | I32 epix = 0; /* explicit precision index */ |
7737 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 7738 | bool asterisk = FALSE; |
46fc3d4c | 7739 | |
211dfcf1 | 7740 | /* echo everything up to the next format specification */ |
46fc3d4c | 7741 | for (q = p; q < patend && *q != '%'; ++q) ; |
7742 | if (q > p) { | |
7743 | sv_catpvn(sv, p, q - p); | |
7744 | p = q; | |
7745 | } | |
7746 | if (q++ >= patend) | |
7747 | break; | |
7748 | ||
211dfcf1 HS |
7749 | /* |
7750 | We allow format specification elements in this order: | |
7751 | \d+\$ explicit format parameter index | |
7752 | [-+ 0#]+ flags | |
7753 | \*?(\d+\$)?v vector with optional (optionally specified) arg | |
7754 | \d+|\*(\d+\$)? width using optional (optionally specified) arg | |
7755 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
7756 | [hlqLV] size | |
7757 | [%bcdefginopsux_DFOUX] format (mandatory) | |
7758 | */ | |
7759 | if (EXPECT_NUMBER(q, width)) { | |
7760 | if (*q == '$') { | |
7761 | ++q; | |
7762 | efix = width; | |
7763 | } else { | |
7764 | goto gotwidth; | |
7765 | } | |
7766 | } | |
7767 | ||
fc36a67e | 7768 | /* FLAGS */ |
7769 | ||
46fc3d4c | 7770 | while (*q) { |
7771 | switch (*q) { | |
7772 | case ' ': | |
7773 | case '+': | |
7774 | plus = *q++; | |
7775 | continue; | |
7776 | ||
7777 | case '-': | |
7778 | left = TRUE; | |
7779 | q++; | |
7780 | continue; | |
7781 | ||
7782 | case '0': | |
7783 | fill = *q++; | |
7784 | continue; | |
7785 | ||
7786 | case '#': | |
7787 | alt = TRUE; | |
7788 | q++; | |
7789 | continue; | |
7790 | ||
fc36a67e | 7791 | default: |
7792 | break; | |
7793 | } | |
7794 | break; | |
7795 | } | |
46fc3d4c | 7796 | |
211dfcf1 | 7797 | tryasterisk: |
eb3fce90 | 7798 | if (*q == '*') { |
211dfcf1 HS |
7799 | q++; |
7800 | if (EXPECT_NUMBER(q, ewix)) | |
7801 | if (*q++ != '$') | |
7802 | goto unknown; | |
eb3fce90 | 7803 | asterisk = TRUE; |
211dfcf1 HS |
7804 | } |
7805 | if (*q == 'v') { | |
eb3fce90 | 7806 | q++; |
211dfcf1 HS |
7807 | if (vectorize) |
7808 | goto unknown; | |
9cbac4c7 | 7809 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
7810 | evix = ewix; |
7811 | ewix = 0; | |
7812 | asterisk = FALSE; | |
7813 | } | |
7814 | vectorize = TRUE; | |
7815 | goto tryasterisk; | |
eb3fce90 JH |
7816 | } |
7817 | ||
211dfcf1 HS |
7818 | if (!asterisk) |
7819 | EXPECT_NUMBER(q, width); | |
7820 | ||
7821 | if (vectorize) { | |
7822 | if (vectorarg) { | |
7823 | if (args) | |
7824 | vecsv = va_arg(*args, SV*); | |
7825 | else | |
7826 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
7827 | svargs[ewix ? ewix-1 : svix++] : &PL_sv_undef; | |
4459522c | 7828 | dotstr = SvPVx(vecsv, dotstrlen); |
211dfcf1 HS |
7829 | if (DO_UTF8(vecsv)) |
7830 | is_utf = TRUE; | |
7831 | } | |
7832 | if (args) { | |
7833 | vecsv = va_arg(*args, SV*); | |
7834 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
b2e23cf9 | 7835 | vec_utf = DO_UTF8(vecsv); |
eb3fce90 | 7836 | } |
211dfcf1 HS |
7837 | else if (efix ? efix <= svmax : svix < svmax) { |
7838 | vecsv = svargs[efix ? efix-1 : svix++]; | |
7839 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
b2e23cf9 | 7840 | vec_utf = DO_UTF8(vecsv); |
211dfcf1 HS |
7841 | } |
7842 | else { | |
7843 | vecstr = (U8*)""; | |
7844 | veclen = 0; | |
7845 | } | |
eb3fce90 | 7846 | } |
fc36a67e | 7847 | |
eb3fce90 | 7848 | if (asterisk) { |
fc36a67e | 7849 | if (args) |
7850 | i = va_arg(*args, int); | |
7851 | else | |
eb3fce90 JH |
7852 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
7853 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7854 | left |= (i < 0); |
7855 | width = (i < 0) ? -i : i; | |
fc36a67e | 7856 | } |
211dfcf1 | 7857 | gotwidth: |
fc36a67e | 7858 | |
7859 | /* PRECISION */ | |
46fc3d4c | 7860 | |
fc36a67e | 7861 | if (*q == '.') { |
7862 | q++; | |
7863 | if (*q == '*') { | |
211dfcf1 | 7864 | q++; |
497b47a8 | 7865 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') /* epix currently unused */ |
211dfcf1 | 7866 | goto unknown; |
46fc3d4c | 7867 | if (args) |
7868 | i = va_arg(*args, int); | |
7869 | else | |
eb3fce90 JH |
7870 | i = (ewix ? ewix <= svmax : svix < svmax) |
7871 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 7872 | precis = (i < 0) ? 0 : i; |
fc36a67e | 7873 | } |
7874 | else { | |
7875 | precis = 0; | |
7876 | while (isDIGIT(*q)) | |
7877 | precis = precis * 10 + (*q++ - '0'); | |
7878 | } | |
7879 | has_precis = TRUE; | |
7880 | } | |
46fc3d4c | 7881 | |
fc36a67e | 7882 | /* SIZE */ |
46fc3d4c | 7883 | |
fc36a67e | 7884 | switch (*q) { |
e5c81feb | 7885 | #if defined(HAS_QUAD) || (defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)) |
6f9bb7fd | 7886 | case 'L': /* Ld */ |
e5c81feb JH |
7887 | /* FALL THROUGH */ |
7888 | #endif | |
7889 | #ifdef HAS_QUAD | |
6f9bb7fd GS |
7890 | case 'q': /* qd */ |
7891 | intsize = 'q'; | |
7892 | q++; | |
7893 | break; | |
7894 | #endif | |
fc36a67e | 7895 | case 'l': |
e5c81feb JH |
7896 | #if defined(HAS_QUAD) || (defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)) |
7897 | if (*(q + 1) == 'l') { /* lld, llf */ | |
fc36a67e | 7898 | intsize = 'q'; |
7899 | q += 2; | |
46fc3d4c | 7900 | break; |
cf2093f6 | 7901 | } |
fc36a67e | 7902 | #endif |
6f9bb7fd | 7903 | /* FALL THROUGH */ |
fc36a67e | 7904 | case 'h': |
cf2093f6 | 7905 | /* FALL THROUGH */ |
fc36a67e | 7906 | case 'V': |
7907 | intsize = *q++; | |
46fc3d4c | 7908 | break; |
7909 | } | |
7910 | ||
fc36a67e | 7911 | /* CONVERSION */ |
7912 | ||
211dfcf1 HS |
7913 | if (*q == '%') { |
7914 | eptr = q++; | |
7915 | elen = 1; | |
7916 | goto string; | |
7917 | } | |
7918 | ||
7919 | if (!args) | |
7920 | argsv = (efix ? efix <= svmax : svix < svmax) ? | |
7921 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
7922 | ||
46fc3d4c | 7923 | switch (c = *q++) { |
7924 | ||
7925 | /* STRINGS */ | |
7926 | ||
46fc3d4c | 7927 | case 'c': |
211dfcf1 | 7928 | uv = args ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
7929 | if ((uv > 255 || |
7930 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 7931 | && !IN_BYTES) { |
dfe13c55 | 7932 | eptr = (char*)utf8buf; |
9041c2e3 | 7933 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
7e2040f0 GS |
7934 | is_utf = TRUE; |
7935 | } | |
7936 | else { | |
7937 | c = (char)uv; | |
7938 | eptr = &c; | |
7939 | elen = 1; | |
a0ed51b3 | 7940 | } |
46fc3d4c | 7941 | goto string; |
7942 | ||
46fc3d4c | 7943 | case 's': |
7944 | if (args) { | |
fc36a67e | 7945 | eptr = va_arg(*args, char*); |
c635e13b | 7946 | if (eptr) |
1d7c1841 GS |
7947 | #ifdef MACOS_TRADITIONAL |
7948 | /* On MacOS, %#s format is used for Pascal strings */ | |
7949 | if (alt) | |
7950 | elen = *eptr++; | |
7951 | else | |
7952 | #endif | |
c635e13b | 7953 | elen = strlen(eptr); |
7954 | else { | |
7955 | eptr = nullstr; | |
7956 | elen = sizeof nullstr - 1; | |
7957 | } | |
46fc3d4c | 7958 | } |
211dfcf1 | 7959 | else { |
7e2040f0 GS |
7960 | eptr = SvPVx(argsv, elen); |
7961 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
7962 | if (has_precis && precis < elen) { |
7963 | I32 p = precis; | |
7e2040f0 | 7964 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
7965 | precis = p; |
7966 | } | |
7967 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 7968 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 7969 | } |
7e2040f0 | 7970 | is_utf = TRUE; |
a0ed51b3 LW |
7971 | } |
7972 | } | |
46fc3d4c | 7973 | goto string; |
7974 | ||
fc36a67e | 7975 | case '_': |
7976 | /* | |
7977 | * The "%_" hack might have to be changed someday, | |
7978 | * if ISO or ANSI decide to use '_' for something. | |
7979 | * So we keep it hidden from users' code. | |
7980 | */ | |
7981 | if (!args) | |
7982 | goto unknown; | |
211dfcf1 | 7983 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
7984 | eptr = SvPVx(argsv, elen); |
7985 | if (DO_UTF8(argsv)) | |
7986 | is_utf = TRUE; | |
fc36a67e | 7987 | |
46fc3d4c | 7988 | string: |
b22c7a20 | 7989 | vectorize = FALSE; |
46fc3d4c | 7990 | if (has_precis && elen > precis) |
7991 | elen = precis; | |
7992 | break; | |
7993 | ||
7994 | /* INTEGERS */ | |
7995 | ||
fc36a67e | 7996 | case 'p': |
c2e66d9e GS |
7997 | if (alt) |
7998 | goto unknown; | |
211dfcf1 | 7999 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 8000 | base = 16; |
8001 | goto integer; | |
8002 | ||
46fc3d4c | 8003 | case 'D': |
29fe7a80 | 8004 | #ifdef IV_IS_QUAD |
22f3ae8c | 8005 | intsize = 'q'; |
29fe7a80 | 8006 | #else |
46fc3d4c | 8007 | intsize = 'l'; |
29fe7a80 | 8008 | #endif |
46fc3d4c | 8009 | /* FALL THROUGH */ |
8010 | case 'd': | |
8011 | case 'i': | |
b22c7a20 | 8012 | if (vectorize) { |
ba210ebe | 8013 | STRLEN ulen; |
211dfcf1 HS |
8014 | if (!veclen) |
8015 | continue; | |
b2e23cf9 | 8016 | if (vec_utf) |
e83d50c9 | 8017 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, UTF8_ALLOW_ANYUV); |
b22c7a20 | 8018 | else { |
e83d50c9 | 8019 | uv = *vecstr; |
b22c7a20 GS |
8020 | ulen = 1; |
8021 | } | |
8022 | vecstr += ulen; | |
8023 | veclen -= ulen; | |
e83d50c9 JP |
8024 | if (plus) |
8025 | esignbuf[esignlen++] = plus; | |
b22c7a20 GS |
8026 | } |
8027 | else if (args) { | |
46fc3d4c | 8028 | switch (intsize) { |
8029 | case 'h': iv = (short)va_arg(*args, int); break; | |
8030 | default: iv = va_arg(*args, int); break; | |
8031 | case 'l': iv = va_arg(*args, long); break; | |
fc36a67e | 8032 | case 'V': iv = va_arg(*args, IV); break; |
cf2093f6 JH |
8033 | #ifdef HAS_QUAD |
8034 | case 'q': iv = va_arg(*args, Quad_t); break; | |
8035 | #endif | |
46fc3d4c | 8036 | } |
8037 | } | |
8038 | else { | |
211dfcf1 | 8039 | iv = SvIVx(argsv); |
46fc3d4c | 8040 | switch (intsize) { |
8041 | case 'h': iv = (short)iv; break; | |
be28567c | 8042 | default: break; |
46fc3d4c | 8043 | case 'l': iv = (long)iv; break; |
fc36a67e | 8044 | case 'V': break; |
cf2093f6 JH |
8045 | #ifdef HAS_QUAD |
8046 | case 'q': iv = (Quad_t)iv; break; | |
8047 | #endif | |
46fc3d4c | 8048 | } |
8049 | } | |
e83d50c9 JP |
8050 | if ( !vectorize ) /* we already set uv above */ |
8051 | { | |
8052 | if (iv >= 0) { | |
8053 | uv = iv; | |
8054 | if (plus) | |
8055 | esignbuf[esignlen++] = plus; | |
8056 | } | |
8057 | else { | |
8058 | uv = -iv; | |
8059 | esignbuf[esignlen++] = '-'; | |
8060 | } | |
46fc3d4c | 8061 | } |
8062 | base = 10; | |
8063 | goto integer; | |
8064 | ||
fc36a67e | 8065 | case 'U': |
29fe7a80 | 8066 | #ifdef IV_IS_QUAD |
22f3ae8c | 8067 | intsize = 'q'; |
29fe7a80 | 8068 | #else |
fc36a67e | 8069 | intsize = 'l'; |
29fe7a80 | 8070 | #endif |
fc36a67e | 8071 | /* FALL THROUGH */ |
8072 | case 'u': | |
8073 | base = 10; | |
8074 | goto uns_integer; | |
8075 | ||
4f19785b WSI |
8076 | case 'b': |
8077 | base = 2; | |
8078 | goto uns_integer; | |
8079 | ||
46fc3d4c | 8080 | case 'O': |
29fe7a80 | 8081 | #ifdef IV_IS_QUAD |
22f3ae8c | 8082 | intsize = 'q'; |
29fe7a80 | 8083 | #else |
46fc3d4c | 8084 | intsize = 'l'; |
29fe7a80 | 8085 | #endif |
46fc3d4c | 8086 | /* FALL THROUGH */ |
8087 | case 'o': | |
8088 | base = 8; | |
8089 | goto uns_integer; | |
8090 | ||
8091 | case 'X': | |
46fc3d4c | 8092 | case 'x': |
8093 | base = 16; | |
46fc3d4c | 8094 | |
8095 | uns_integer: | |
b22c7a20 | 8096 | if (vectorize) { |
ba210ebe | 8097 | STRLEN ulen; |
b22c7a20 | 8098 | vector: |
211dfcf1 HS |
8099 | if (!veclen) |
8100 | continue; | |
b2e23cf9 | 8101 | if (vec_utf) |
e83d50c9 | 8102 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, UTF8_ALLOW_ANYUV); |
b22c7a20 | 8103 | else { |
a05b299f | 8104 | uv = *vecstr; |
b22c7a20 GS |
8105 | ulen = 1; |
8106 | } | |
8107 | vecstr += ulen; | |
8108 | veclen -= ulen; | |
8109 | } | |
8110 | else if (args) { | |
46fc3d4c | 8111 | switch (intsize) { |
8112 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
8113 | default: uv = va_arg(*args, unsigned); break; | |
8114 | case 'l': uv = va_arg(*args, unsigned long); break; | |
fc36a67e | 8115 | case 'V': uv = va_arg(*args, UV); break; |
cf2093f6 JH |
8116 | #ifdef HAS_QUAD |
8117 | case 'q': uv = va_arg(*args, Quad_t); break; | |
8118 | #endif | |
46fc3d4c | 8119 | } |
8120 | } | |
8121 | else { | |
211dfcf1 | 8122 | uv = SvUVx(argsv); |
46fc3d4c | 8123 | switch (intsize) { |
8124 | case 'h': uv = (unsigned short)uv; break; | |
be28567c | 8125 | default: break; |
46fc3d4c | 8126 | case 'l': uv = (unsigned long)uv; break; |
fc36a67e | 8127 | case 'V': break; |
cf2093f6 JH |
8128 | #ifdef HAS_QUAD |
8129 | case 'q': uv = (Quad_t)uv; break; | |
8130 | #endif | |
46fc3d4c | 8131 | } |
8132 | } | |
8133 | ||
8134 | integer: | |
46fc3d4c | 8135 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 8136 | switch (base) { |
8137 | unsigned dig; | |
8138 | case 16: | |
c10ed8b9 HS |
8139 | if (!uv) |
8140 | alt = FALSE; | |
1d7c1841 GS |
8141 | p = (char*)((c == 'X') |
8142 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 8143 | do { |
8144 | dig = uv & 15; | |
8145 | *--eptr = p[dig]; | |
8146 | } while (uv >>= 4); | |
8147 | if (alt) { | |
46fc3d4c | 8148 | esignbuf[esignlen++] = '0'; |
fc36a67e | 8149 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 8150 | } |
fc36a67e | 8151 | break; |
8152 | case 8: | |
8153 | do { | |
8154 | dig = uv & 7; | |
8155 | *--eptr = '0' + dig; | |
8156 | } while (uv >>= 3); | |
8157 | if (alt && *eptr != '0') | |
8158 | *--eptr = '0'; | |
8159 | break; | |
4f19785b WSI |
8160 | case 2: |
8161 | do { | |
8162 | dig = uv & 1; | |
8163 | *--eptr = '0' + dig; | |
8164 | } while (uv >>= 1); | |
eda88b6d JH |
8165 | if (alt) { |
8166 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 8167 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 8168 | } |
4f19785b | 8169 | break; |
fc36a67e | 8170 | default: /* it had better be ten or less */ |
6bc102ca | 8171 | #if defined(PERL_Y2KWARN) |
e476b1b5 | 8172 | if (ckWARN(WARN_Y2K)) { |
6bc102ca GS |
8173 | STRLEN n; |
8174 | char *s = SvPV(sv,n); | |
8175 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
8176 | && (n == 2 || !isDIGIT(s[n-3]))) | |
8177 | { | |
e476b1b5 | 8178 | Perl_warner(aTHX_ WARN_Y2K, |
6bc102ca GS |
8179 | "Possible Y2K bug: %%%c %s", |
8180 | c, "format string following '19'"); | |
8181 | } | |
8182 | } | |
8183 | #endif | |
fc36a67e | 8184 | do { |
8185 | dig = uv % base; | |
8186 | *--eptr = '0' + dig; | |
8187 | } while (uv /= base); | |
8188 | break; | |
46fc3d4c | 8189 | } |
8190 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
8191 | if (has_precis) { |
8192 | if (precis > elen) | |
8193 | zeros = precis - elen; | |
8194 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
8195 | elen = 0; | |
8196 | } | |
46fc3d4c | 8197 | break; |
8198 | ||
8199 | /* FLOATING POINT */ | |
8200 | ||
fc36a67e | 8201 | case 'F': |
8202 | c = 'f'; /* maybe %F isn't supported here */ | |
8203 | /* FALL THROUGH */ | |
46fc3d4c | 8204 | case 'e': case 'E': |
fc36a67e | 8205 | case 'f': |
46fc3d4c | 8206 | case 'g': case 'G': |
8207 | ||
8208 | /* This is evil, but floating point is even more evil */ | |
8209 | ||
b22c7a20 | 8210 | vectorize = FALSE; |
211dfcf1 | 8211 | nv = args ? va_arg(*args, NV) : SvNVx(argsv); |
fc36a67e | 8212 | |
8213 | need = 0; | |
8214 | if (c != 'e' && c != 'E') { | |
8215 | i = PERL_INT_MIN; | |
73b309ea | 8216 | (void)Perl_frexp(nv, &i); |
fc36a67e | 8217 | if (i == PERL_INT_MIN) |
cea2e8a9 | 8218 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 8219 | if (i > 0) |
fc36a67e | 8220 | need = BIT_DIGITS(i); |
8221 | } | |
8222 | need += has_precis ? precis : 6; /* known default */ | |
8223 | if (need < width) | |
8224 | need = width; | |
8225 | ||
46fc3d4c | 8226 | need += 20; /* fudge factor */ |
80252599 GS |
8227 | if (PL_efloatsize < need) { |
8228 | Safefree(PL_efloatbuf); | |
8229 | PL_efloatsize = need + 20; /* more fudge */ | |
8230 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 8231 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 8232 | } |
8233 | ||
8234 | eptr = ebuf + sizeof ebuf; | |
8235 | *--eptr = '\0'; | |
8236 | *--eptr = c; | |
e5c81feb | 8237 | #if defined(USE_LONG_DOUBLE) && defined(PERL_PRIfldbl) |
cf2093f6 | 8238 | { |
e5c81feb JH |
8239 | /* Copy the one or more characters in a long double |
8240 | * format before the 'base' ([efgEFG]) character to | |
8241 | * the format string. */ | |
8242 | static char const prifldbl[] = PERL_PRIfldbl; | |
8243 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
8244 | while (p >= prifldbl) { *--eptr = *p--; } | |
cf2093f6 | 8245 | } |
65202027 | 8246 | #endif |
46fc3d4c | 8247 | if (has_precis) { |
8248 | base = precis; | |
8249 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8250 | *--eptr = '.'; | |
8251 | } | |
8252 | if (width) { | |
8253 | base = width; | |
8254 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
8255 | } | |
8256 | if (fill == '0') | |
8257 | *--eptr = fill; | |
84902520 TB |
8258 | if (left) |
8259 | *--eptr = '-'; | |
46fc3d4c | 8260 | if (plus) |
8261 | *--eptr = plus; | |
8262 | if (alt) | |
8263 | *--eptr = '#'; | |
8264 | *--eptr = '%'; | |
8265 | ||
ff9121f8 JH |
8266 | /* No taint. Otherwise we are in the strange situation |
8267 | * where printf() taints but print($float) doesn't. | |
bda0f7a5 | 8268 | * --jhi */ |
dd8482fc | 8269 | (void)sprintf(PL_efloatbuf, eptr, nv); |
8af02333 | 8270 | |
80252599 GS |
8271 | eptr = PL_efloatbuf; |
8272 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 8273 | break; |
8274 | ||
fc36a67e | 8275 | /* SPECIAL */ |
8276 | ||
8277 | case 'n': | |
b22c7a20 | 8278 | vectorize = FALSE; |
fc36a67e | 8279 | i = SvCUR(sv) - origlen; |
8280 | if (args) { | |
c635e13b | 8281 | switch (intsize) { |
8282 | case 'h': *(va_arg(*args, short*)) = i; break; | |
8283 | default: *(va_arg(*args, int*)) = i; break; | |
8284 | case 'l': *(va_arg(*args, long*)) = i; break; | |
8285 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
8286 | #ifdef HAS_QUAD |
8287 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
8288 | #endif | |
c635e13b | 8289 | } |
fc36a67e | 8290 | } |
9dd79c3f | 8291 | else |
211dfcf1 | 8292 | sv_setuv_mg(argsv, (UV)i); |
fc36a67e | 8293 | continue; /* not "break" */ |
8294 | ||
8295 | /* UNKNOWN */ | |
8296 | ||
46fc3d4c | 8297 | default: |
fc36a67e | 8298 | unknown: |
b22c7a20 | 8299 | vectorize = FALSE; |
599cee73 | 8300 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 8301 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 8302 | SV *msg = sv_newmortal(); |
cea2e8a9 | 8303 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ", |
533c011a | 8304 | (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); |
0f4b6630 | 8305 | if (c) { |
0f4b6630 | 8306 | if (isPRINT(c)) |
1c846c1f | 8307 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
8308 | "\"%%%c\"", c & 0xFF); |
8309 | else | |
8310 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 8311 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 8312 | (UV)c & 0xFF); |
0f4b6630 | 8313 | } else |
c635e13b | 8314 | sv_catpv(msg, "end of string"); |
894356b3 | 8315 | Perl_warner(aTHX_ WARN_PRINTF, "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 8316 | } |
fb73857a | 8317 | |
8318 | /* output mangled stuff ... */ | |
8319 | if (c == '\0') | |
8320 | --q; | |
46fc3d4c | 8321 | eptr = p; |
8322 | elen = q - p; | |
fb73857a | 8323 | |
8324 | /* ... right here, because formatting flags should not apply */ | |
8325 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
8326 | p = SvEND(sv); | |
4459522c | 8327 | Copy(eptr, p, elen, char); |
fb73857a | 8328 | p += elen; |
8329 | *p = '\0'; | |
8330 | SvCUR(sv) = p - SvPVX(sv); | |
8331 | continue; /* not "break" */ | |
46fc3d4c | 8332 | } |
8333 | ||
fc36a67e | 8334 | have = esignlen + zeros + elen; |
46fc3d4c | 8335 | need = (have > width ? have : width); |
8336 | gap = need - have; | |
8337 | ||
b22c7a20 | 8338 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 8339 | p = SvEND(sv); |
8340 | if (esignlen && fill == '0') { | |
8341 | for (i = 0; i < esignlen; i++) | |
8342 | *p++ = esignbuf[i]; | |
8343 | } | |
8344 | if (gap && !left) { | |
8345 | memset(p, fill, gap); | |
8346 | p += gap; | |
8347 | } | |
8348 | if (esignlen && fill != '0') { | |
8349 | for (i = 0; i < esignlen; i++) | |
8350 | *p++ = esignbuf[i]; | |
8351 | } | |
fc36a67e | 8352 | if (zeros) { |
8353 | for (i = zeros; i; i--) | |
8354 | *p++ = '0'; | |
8355 | } | |
46fc3d4c | 8356 | if (elen) { |
4459522c | 8357 | Copy(eptr, p, elen, char); |
46fc3d4c | 8358 | p += elen; |
8359 | } | |
8360 | if (gap && left) { | |
8361 | memset(p, ' ', gap); | |
8362 | p += gap; | |
8363 | } | |
b22c7a20 GS |
8364 | if (vectorize) { |
8365 | if (veclen) { | |
4459522c | 8366 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
8367 | p += dotstrlen; |
8368 | } | |
8369 | else | |
8370 | vectorize = FALSE; /* done iterating over vecstr */ | |
8371 | } | |
7e2040f0 GS |
8372 | if (is_utf) |
8373 | SvUTF8_on(sv); | |
46fc3d4c | 8374 | *p = '\0'; |
8375 | SvCUR(sv) = p - SvPVX(sv); | |
b22c7a20 GS |
8376 | if (vectorize) { |
8377 | esignlen = 0; | |
8378 | goto vector; | |
8379 | } | |
46fc3d4c | 8380 | } |
8381 | } | |
51371543 | 8382 | |
645c22ef DM |
8383 | /* ========================================================================= |
8384 | ||
8385 | =head1 Cloning an interpreter | |
8386 | ||
8387 | All the macros and functions in this section are for the private use of | |
8388 | the main function, perl_clone(). | |
8389 | ||
8390 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
8391 | During the course of a cloning, a hash table is used to map old addresses | |
8392 | to new addresses. The table is created and manipulated with the | |
8393 | ptr_table_* functions. | |
8394 | ||
8395 | =cut | |
8396 | ||
8397 | ============================================================================*/ | |
8398 | ||
8399 | ||
1d7c1841 GS |
8400 | #if defined(USE_ITHREADS) |
8401 | ||
4d1ff10f AB |
8402 | #if defined(USE_5005THREADS) |
8403 | # include "error: USE_5005THREADS and USE_ITHREADS are incompatible" | |
1d7c1841 GS |
8404 | #endif |
8405 | ||
1d7c1841 GS |
8406 | #ifndef GpREFCNT_inc |
8407 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
8408 | #endif | |
8409 | ||
8410 | ||
d2d73c3e AB |
8411 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
8412 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
8413 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8414 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
8415 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8416 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
8417 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8418 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
8419 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
8420 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
8421 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
8422 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
8423 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
8cf8f3d1 | 8424 | |
d2d73c3e | 8425 | |
d2f185dc AMS |
8426 | /* Duplicate a regexp. Required reading: pregcomp() and pregfree() in |
8427 | regcomp.c. AMS 20010712 */ | |
645c22ef | 8428 | |
1d7c1841 | 8429 | REGEXP * |
a8fc9800 | 8430 | Perl_re_dup(pTHX_ REGEXP *r, CLONE_PARAMS *param) |
1d7c1841 | 8431 | { |
d2f185dc AMS |
8432 | REGEXP *ret; |
8433 | int i, len, npar; | |
8434 | struct reg_substr_datum *s; | |
8435 | ||
8436 | if (!r) | |
8437 | return (REGEXP *)NULL; | |
8438 | ||
8439 | if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) | |
8440 | return ret; | |
8441 | ||
8442 | len = r->offsets[0]; | |
8443 | npar = r->nparens+1; | |
8444 | ||
8445 | Newc(0, ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); | |
8446 | Copy(r->program, ret->program, len+1, regnode); | |
8447 | ||
8448 | New(0, ret->startp, npar, I32); | |
8449 | Copy(r->startp, ret->startp, npar, I32); | |
8450 | New(0, ret->endp, npar, I32); | |
8451 | Copy(r->startp, ret->startp, npar, I32); | |
8452 | ||
d2f185dc AMS |
8453 | New(0, ret->substrs, 1, struct reg_substr_data); |
8454 | for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { | |
8455 | s->min_offset = r->substrs->data[i].min_offset; | |
8456 | s->max_offset = r->substrs->data[i].max_offset; | |
8457 | s->substr = sv_dup_inc(r->substrs->data[i].substr, param); | |
8458 | } | |
8459 | ||
70612e96 | 8460 | ret->regstclass = NULL; |
d2f185dc AMS |
8461 | if (r->data) { |
8462 | struct reg_data *d; | |
8463 | int count = r->data->count; | |
8464 | ||
8465 | Newc(0, d, sizeof(struct reg_data) + count*sizeof(void *), | |
8466 | char, struct reg_data); | |
8467 | New(0, d->what, count, U8); | |
8468 | ||
8469 | d->count = count; | |
8470 | for (i = 0; i < count; i++) { | |
8471 | d->what[i] = r->data->what[i]; | |
8472 | switch (d->what[i]) { | |
8473 | case 's': | |
8474 | d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); | |
8475 | break; | |
8476 | case 'p': | |
8477 | d->data[i] = av_dup_inc((AV *)r->data->data[i], param); | |
8478 | break; | |
8479 | case 'f': | |
8480 | /* This is cheating. */ | |
8481 | New(0, d->data[i], 1, struct regnode_charclass_class); | |
8482 | StructCopy(r->data->data[i], d->data[i], | |
8483 | struct regnode_charclass_class); | |
70612e96 | 8484 | ret->regstclass = (regnode*)d->data[i]; |
d2f185dc AMS |
8485 | break; |
8486 | case 'o': | |
33773810 AMS |
8487 | /* Compiled op trees are readonly, and can thus be |
8488 | shared without duplication. */ | |
9b978d73 DM |
8489 | d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); |
8490 | break; | |
d2f185dc AMS |
8491 | case 'n': |
8492 | d->data[i] = r->data->data[i]; | |
8493 | break; | |
8494 | } | |
8495 | } | |
8496 | ||
8497 | ret->data = d; | |
8498 | } | |
8499 | else | |
8500 | ret->data = NULL; | |
8501 | ||
8502 | New(0, ret->offsets, 2*len+1, U32); | |
8503 | Copy(r->offsets, ret->offsets, 2*len+1, U32); | |
8504 | ||
8505 | ret->precomp = SAVEPV(r->precomp); | |
d2f185dc AMS |
8506 | ret->refcnt = r->refcnt; |
8507 | ret->minlen = r->minlen; | |
8508 | ret->prelen = r->prelen; | |
8509 | ret->nparens = r->nparens; | |
8510 | ret->lastparen = r->lastparen; | |
8511 | ret->lastcloseparen = r->lastcloseparen; | |
8512 | ret->reganch = r->reganch; | |
8513 | ||
70612e96 RG |
8514 | ret->sublen = r->sublen; |
8515 | ||
8516 | if (RX_MATCH_COPIED(ret)) | |
8517 | ret->subbeg = SAVEPV(r->subbeg); | |
8518 | else | |
8519 | ret->subbeg = Nullch; | |
8520 | ||
d2f185dc AMS |
8521 | ptr_table_store(PL_ptr_table, r, ret); |
8522 | return ret; | |
1d7c1841 GS |
8523 | } |
8524 | ||
d2d73c3e | 8525 | /* duplicate a file handle */ |
645c22ef | 8526 | |
1d7c1841 | 8527 | PerlIO * |
a8fc9800 | 8528 | Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) |
1d7c1841 GS |
8529 | { |
8530 | PerlIO *ret; | |
8531 | if (!fp) | |
8532 | return (PerlIO*)NULL; | |
8533 | ||
8534 | /* look for it in the table first */ | |
8535 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
8536 | if (ret) | |
8537 | return ret; | |
8538 | ||
8539 | /* create anew and remember what it is */ | |
ecdeb87c | 8540 | ret = PerlIO_fdupopen(aTHX_ fp, param, PERLIO_DUP_CLONE); |
1d7c1841 GS |
8541 | ptr_table_store(PL_ptr_table, fp, ret); |
8542 | return ret; | |
8543 | } | |
8544 | ||
645c22ef DM |
8545 | /* duplicate a directory handle */ |
8546 | ||
1d7c1841 GS |
8547 | DIR * |
8548 | Perl_dirp_dup(pTHX_ DIR *dp) | |
8549 | { | |
8550 | if (!dp) | |
8551 | return (DIR*)NULL; | |
8552 | /* XXX TODO */ | |
8553 | return dp; | |
8554 | } | |
8555 | ||
ff276b08 | 8556 | /* duplicate a typeglob */ |
645c22ef | 8557 | |
1d7c1841 | 8558 | GP * |
a8fc9800 | 8559 | Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) |
1d7c1841 GS |
8560 | { |
8561 | GP *ret; | |
8562 | if (!gp) | |
8563 | return (GP*)NULL; | |
8564 | /* look for it in the table first */ | |
8565 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
8566 | if (ret) | |
8567 | return ret; | |
8568 | ||
8569 | /* create anew and remember what it is */ | |
8570 | Newz(0, ret, 1, GP); | |
8571 | ptr_table_store(PL_ptr_table, gp, ret); | |
8572 | ||
8573 | /* clone */ | |
8574 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
8575 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
8576 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
8577 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
8578 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
8579 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
8580 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
8581 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
8582 | ret->gp_cvgen = gp->gp_cvgen; |
8583 | ret->gp_flags = gp->gp_flags; | |
8584 | ret->gp_line = gp->gp_line; | |
8585 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
8586 | return ret; | |
8587 | } | |
8588 | ||
645c22ef DM |
8589 | /* duplicate a chain of magic */ |
8590 | ||
1d7c1841 | 8591 | MAGIC * |
a8fc9800 | 8592 | Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS* param) |
1d7c1841 | 8593 | { |
cb359b41 JH |
8594 | MAGIC *mgprev = (MAGIC*)NULL; |
8595 | MAGIC *mgret; | |
1d7c1841 GS |
8596 | if (!mg) |
8597 | return (MAGIC*)NULL; | |
8598 | /* look for it in the table first */ | |
8599 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
8600 | if (mgret) | |
8601 | return mgret; | |
8602 | ||
8603 | for (; mg; mg = mg->mg_moremagic) { | |
8604 | MAGIC *nmg; | |
8605 | Newz(0, nmg, 1, MAGIC); | |
cb359b41 | 8606 | if (mgprev) |
1d7c1841 | 8607 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
8608 | else |
8609 | mgret = nmg; | |
1d7c1841 GS |
8610 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
8611 | nmg->mg_private = mg->mg_private; | |
8612 | nmg->mg_type = mg->mg_type; | |
8613 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 8614 | if (mg->mg_type == PERL_MAGIC_qr) { |
d2f185dc | 8615 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj, param); |
1d7c1841 | 8616 | } |
05bd4103 JH |
8617 | else if(mg->mg_type == PERL_MAGIC_backref) { |
8618 | AV *av = (AV*) mg->mg_obj; | |
8619 | SV **svp; | |
8620 | I32 i; | |
8621 | nmg->mg_obj = (SV*)newAV(); | |
8622 | svp = AvARRAY(av); | |
8623 | i = AvFILLp(av); | |
8624 | while (i >= 0) { | |
8625 | av_push((AV*)nmg->mg_obj,sv_dup(svp[i],param)); | |
8626 | i--; | |
8627 | } | |
8628 | } | |
1d7c1841 GS |
8629 | else { |
8630 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
8631 | ? sv_dup_inc(mg->mg_obj, param) |
8632 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
8633 | } |
8634 | nmg->mg_len = mg->mg_len; | |
8635 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 8636 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
1d7c1841 GS |
8637 | if (mg->mg_len >= 0) { |
8638 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); | |
14befaf4 DM |
8639 | if (mg->mg_type == PERL_MAGIC_overload_table && |
8640 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
8641 | { | |
1d7c1841 GS |
8642 | AMT *amtp = (AMT*)mg->mg_ptr; |
8643 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
8644 | I32 i; | |
8645 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 8646 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
8647 | } |
8648 | } | |
8649 | } | |
8650 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 8651 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 GS |
8652 | } |
8653 | mgprev = nmg; | |
8654 | } | |
8655 | return mgret; | |
8656 | } | |
8657 | ||
645c22ef DM |
8658 | /* create a new pointer-mapping table */ |
8659 | ||
1d7c1841 GS |
8660 | PTR_TBL_t * |
8661 | Perl_ptr_table_new(pTHX) | |
8662 | { | |
8663 | PTR_TBL_t *tbl; | |
8664 | Newz(0, tbl, 1, PTR_TBL_t); | |
8665 | tbl->tbl_max = 511; | |
8666 | tbl->tbl_items = 0; | |
8667 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
8668 | return tbl; | |
8669 | } | |
8670 | ||
645c22ef DM |
8671 | /* map an existing pointer using a table */ |
8672 | ||
1d7c1841 GS |
8673 | void * |
8674 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
8675 | { | |
8676 | PTR_TBL_ENT_t *tblent; | |
d2a79402 | 8677 | UV hash = PTR2UV(sv); |
1d7c1841 GS |
8678 | assert(tbl); |
8679 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
8680 | for (; tblent; tblent = tblent->next) { | |
8681 | if (tblent->oldval == sv) | |
8682 | return tblent->newval; | |
8683 | } | |
8684 | return (void*)NULL; | |
8685 | } | |
8686 | ||
645c22ef DM |
8687 | /* add a new entry to a pointer-mapping table */ |
8688 | ||
1d7c1841 GS |
8689 | void |
8690 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
8691 | { | |
8692 | PTR_TBL_ENT_t *tblent, **otblent; | |
8693 | /* XXX this may be pessimal on platforms where pointers aren't good | |
8694 | * hash values e.g. if they grow faster in the most significant | |
8695 | * bits */ | |
d2a79402 | 8696 | UV hash = PTR2UV(oldv); |
1d7c1841 GS |
8697 | bool i = 1; |
8698 | ||
8699 | assert(tbl); | |
8700 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
8701 | for (tblent = *otblent; tblent; i=0, tblent = tblent->next) { | |
8702 | if (tblent->oldval == oldv) { | |
8703 | tblent->newval = newv; | |
8704 | tbl->tbl_items++; | |
8705 | return; | |
8706 | } | |
8707 | } | |
8708 | Newz(0, tblent, 1, PTR_TBL_ENT_t); | |
8709 | tblent->oldval = oldv; | |
8710 | tblent->newval = newv; | |
8711 | tblent->next = *otblent; | |
8712 | *otblent = tblent; | |
8713 | tbl->tbl_items++; | |
8714 | if (i && tbl->tbl_items > tbl->tbl_max) | |
8715 | ptr_table_split(tbl); | |
8716 | } | |
8717 | ||
645c22ef DM |
8718 | /* double the hash bucket size of an existing ptr table */ |
8719 | ||
1d7c1841 GS |
8720 | void |
8721 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
8722 | { | |
8723 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
8724 | UV oldsize = tbl->tbl_max + 1; | |
8725 | UV newsize = oldsize * 2; | |
8726 | UV i; | |
8727 | ||
8728 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
8729 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
8730 | tbl->tbl_max = --newsize; | |
8731 | tbl->tbl_ary = ary; | |
8732 | for (i=0; i < oldsize; i++, ary++) { | |
8733 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
8734 | if (!*ary) | |
8735 | continue; | |
8736 | curentp = ary + oldsize; | |
8737 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
d2a79402 | 8738 | if ((newsize & PTR2UV(ent->oldval)) != i) { |
1d7c1841 GS |
8739 | *entp = ent->next; |
8740 | ent->next = *curentp; | |
8741 | *curentp = ent; | |
8742 | continue; | |
8743 | } | |
8744 | else | |
8745 | entp = &ent->next; | |
8746 | } | |
8747 | } | |
8748 | } | |
8749 | ||
645c22ef DM |
8750 | /* remove all the entries from a ptr table */ |
8751 | ||
a0739874 DM |
8752 | void |
8753 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
8754 | { | |
8755 | register PTR_TBL_ENT_t **array; | |
8756 | register PTR_TBL_ENT_t *entry; | |
8757 | register PTR_TBL_ENT_t *oentry = Null(PTR_TBL_ENT_t*); | |
8758 | UV riter = 0; | |
8759 | UV max; | |
8760 | ||
8761 | if (!tbl || !tbl->tbl_items) { | |
8762 | return; | |
8763 | } | |
8764 | ||
8765 | array = tbl->tbl_ary; | |
8766 | entry = array[0]; | |
8767 | max = tbl->tbl_max; | |
8768 | ||
8769 | for (;;) { | |
8770 | if (entry) { | |
8771 | oentry = entry; | |
8772 | entry = entry->next; | |
8773 | Safefree(oentry); | |
8774 | } | |
8775 | if (!entry) { | |
8776 | if (++riter > max) { | |
8777 | break; | |
8778 | } | |
8779 | entry = array[riter]; | |
8780 | } | |
8781 | } | |
8782 | ||
8783 | tbl->tbl_items = 0; | |
8784 | } | |
8785 | ||
645c22ef DM |
8786 | /* clear and free a ptr table */ |
8787 | ||
a0739874 DM |
8788 | void |
8789 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
8790 | { | |
8791 | if (!tbl) { | |
8792 | return; | |
8793 | } | |
8794 | ptr_table_clear(tbl); | |
8795 | Safefree(tbl->tbl_ary); | |
8796 | Safefree(tbl); | |
8797 | } | |
8798 | ||
1d7c1841 GS |
8799 | #ifdef DEBUGGING |
8800 | char *PL_watch_pvx; | |
8801 | #endif | |
8802 | ||
645c22ef DM |
8803 | /* attempt to make everything in the typeglob readonly */ |
8804 | ||
5bd07a3d DM |
8805 | STATIC SV * |
8806 | S_gv_share(pTHX_ SV *sstr) | |
8807 | { | |
8808 | GV *gv = (GV*)sstr; | |
8809 | SV *sv = &PL_sv_no; /* just need SvREADONLY-ness */ | |
8810 | ||
8811 | if (GvIO(gv) || GvFORM(gv)) { | |
7fb37951 | 8812 | GvUNIQUE_off(gv); /* GvIOs cannot be shared. nor can GvFORMs */ |
5bd07a3d DM |
8813 | } |
8814 | else if (!GvCV(gv)) { | |
8815 | GvCV(gv) = (CV*)sv; | |
8816 | } | |
8817 | else { | |
8818 | /* CvPADLISTs cannot be shared */ | |
8819 | if (!CvXSUB(GvCV(gv))) { | |
7fb37951 | 8820 | GvUNIQUE_off(gv); |
5bd07a3d DM |
8821 | } |
8822 | } | |
8823 | ||
7fb37951 | 8824 | if (!GvUNIQUE(gv)) { |
5bd07a3d DM |
8825 | #if 0 |
8826 | PerlIO_printf(Perl_debug_log, "gv_share: unable to share %s::%s\n", | |
8827 | HvNAME(GvSTASH(gv)), GvNAME(gv)); | |
8828 | #endif | |
8829 | return Nullsv; | |
8830 | } | |
8831 | ||
4411f3b6 | 8832 | /* |
5bd07a3d DM |
8833 | * write attempts will die with |
8834 | * "Modification of a read-only value attempted" | |
8835 | */ | |
8836 | if (!GvSV(gv)) { | |
8837 | GvSV(gv) = sv; | |
8838 | } | |
8839 | else { | |
8840 | SvREADONLY_on(GvSV(gv)); | |
8841 | } | |
8842 | ||
8843 | if (!GvAV(gv)) { | |
8844 | GvAV(gv) = (AV*)sv; | |
8845 | } | |
8846 | else { | |
8847 | SvREADONLY_on(GvAV(gv)); | |
8848 | } | |
8849 | ||
8850 | if (!GvHV(gv)) { | |
8851 | GvHV(gv) = (HV*)sv; | |
8852 | } | |
8853 | else { | |
8854 | SvREADONLY_on(GvAV(gv)); | |
8855 | } | |
8856 | ||
8857 | return sstr; /* he_dup() will SvREFCNT_inc() */ | |
8858 | } | |
8859 | ||
645c22ef DM |
8860 | /* duplicate an SV of any type (including AV, HV etc) */ |
8861 | ||
1d7c1841 | 8862 | SV * |
a8fc9800 | 8863 | Perl_sv_dup(pTHX_ SV *sstr, CLONE_PARAMS* param) |
1d7c1841 | 8864 | { |
1d7c1841 GS |
8865 | SV *dstr; |
8866 | ||
8867 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
8868 | return Nullsv; | |
8869 | /* look for it in the table first */ | |
8870 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
8871 | if (dstr) | |
8872 | return dstr; | |
8873 | ||
8874 | /* create anew and remember what it is */ | |
8875 | new_SV(dstr); | |
8876 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
8877 | ||
8878 | /* clone */ | |
8879 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
8880 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
8881 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
8882 | ||
8883 | #ifdef DEBUGGING | |
8884 | if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) | |
8885 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", | |
8886 | PL_watch_pvx, SvPVX(sstr)); | |
8887 | #endif | |
8888 | ||
8889 | switch (SvTYPE(sstr)) { | |
8890 | case SVt_NULL: | |
8891 | SvANY(dstr) = NULL; | |
8892 | break; | |
8893 | case SVt_IV: | |
8894 | SvANY(dstr) = new_XIV(); | |
8895 | SvIVX(dstr) = SvIVX(sstr); | |
8896 | break; | |
8897 | case SVt_NV: | |
8898 | SvANY(dstr) = new_XNV(); | |
8899 | SvNVX(dstr) = SvNVX(sstr); | |
8900 | break; | |
8901 | case SVt_RV: | |
8902 | SvANY(dstr) = new_XRV(); | |
5f68ba95 | 8903 | SvRV(dstr) = SvRV(sstr) && SvWEAKREF(sstr) |
d2d73c3e AB |
8904 | ? sv_dup(SvRV(sstr), param) |
8905 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8906 | break; |
8907 | case SVt_PV: | |
8908 | SvANY(dstr) = new_XPV(); | |
8909 | SvCUR(dstr) = SvCUR(sstr); | |
8910 | SvLEN(dstr) = SvLEN(sstr); | |
8911 | if (SvROK(sstr)) | |
5f68ba95 | 8912 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8913 | ? sv_dup(SvRV(sstr), param) |
8914 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8915 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8916 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8917 | else | |
8918 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8919 | break; | |
8920 | case SVt_PVIV: | |
8921 | SvANY(dstr) = new_XPVIV(); | |
8922 | SvCUR(dstr) = SvCUR(sstr); | |
8923 | SvLEN(dstr) = SvLEN(sstr); | |
8924 | SvIVX(dstr) = SvIVX(sstr); | |
8925 | if (SvROK(sstr)) | |
5f68ba95 | 8926 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8927 | ? sv_dup(SvRV(sstr), param) |
8928 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8929 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8930 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8931 | else | |
8932 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8933 | break; | |
8934 | case SVt_PVNV: | |
8935 | SvANY(dstr) = new_XPVNV(); | |
8936 | SvCUR(dstr) = SvCUR(sstr); | |
8937 | SvLEN(dstr) = SvLEN(sstr); | |
8938 | SvIVX(dstr) = SvIVX(sstr); | |
8939 | SvNVX(dstr) = SvNVX(sstr); | |
8940 | if (SvROK(sstr)) | |
5f68ba95 | 8941 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8942 | ? sv_dup(SvRV(sstr), param) |
8943 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8944 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8945 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8946 | else | |
8947 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8948 | break; | |
8949 | case SVt_PVMG: | |
8950 | SvANY(dstr) = new_XPVMG(); | |
8951 | SvCUR(dstr) = SvCUR(sstr); | |
8952 | SvLEN(dstr) = SvLEN(sstr); | |
8953 | SvIVX(dstr) = SvIVX(sstr); | |
8954 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8955 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8956 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8957 | if (SvROK(sstr)) |
5f68ba95 | 8958 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8959 | ? sv_dup(SvRV(sstr), param) |
8960 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8961 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8962 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8963 | else | |
8964 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8965 | break; | |
8966 | case SVt_PVBM: | |
8967 | SvANY(dstr) = new_XPVBM(); | |
8968 | SvCUR(dstr) = SvCUR(sstr); | |
8969 | SvLEN(dstr) = SvLEN(sstr); | |
8970 | SvIVX(dstr) = SvIVX(sstr); | |
8971 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8972 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8973 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8974 | if (SvROK(sstr)) |
5f68ba95 | 8975 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8976 | ? sv_dup(SvRV(sstr), param) |
8977 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8978 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8979 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
8980 | else | |
8981 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
8982 | BmRARE(dstr) = BmRARE(sstr); | |
8983 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
8984 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
8985 | break; | |
8986 | case SVt_PVLV: | |
8987 | SvANY(dstr) = new_XPVLV(); | |
8988 | SvCUR(dstr) = SvCUR(sstr); | |
8989 | SvLEN(dstr) = SvLEN(sstr); | |
8990 | SvIVX(dstr) = SvIVX(sstr); | |
8991 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
8992 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
8993 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 8994 | if (SvROK(sstr)) |
5f68ba95 | 8995 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
8996 | ? sv_dup(SvRV(sstr), param) |
8997 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
8998 | else if (SvPVX(sstr) && SvLEN(sstr)) |
8999 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
9000 | else | |
9001 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
9002 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ | |
9003 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
d2d73c3e | 9004 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); |
1d7c1841 GS |
9005 | LvTYPE(dstr) = LvTYPE(sstr); |
9006 | break; | |
9007 | case SVt_PVGV: | |
7fb37951 | 9008 | if (GvUNIQUE((GV*)sstr)) { |
5bd07a3d DM |
9009 | SV *share; |
9010 | if ((share = gv_share(sstr))) { | |
9011 | del_SV(dstr); | |
9012 | dstr = share; | |
9013 | #if 0 | |
9014 | PerlIO_printf(Perl_debug_log, "sv_dup: sharing %s::%s\n", | |
9015 | HvNAME(GvSTASH(share)), GvNAME(share)); | |
9016 | #endif | |
9017 | break; | |
9018 | } | |
9019 | } | |
1d7c1841 GS |
9020 | SvANY(dstr) = new_XPVGV(); |
9021 | SvCUR(dstr) = SvCUR(sstr); | |
9022 | SvLEN(dstr) = SvLEN(sstr); | |
9023 | SvIVX(dstr) = SvIVX(sstr); | |
9024 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9025 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9026 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 9027 | if (SvROK(sstr)) |
5f68ba95 | 9028 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
9029 | ? sv_dup(SvRV(sstr), param) |
9030 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
9031 | else if (SvPVX(sstr) && SvLEN(sstr)) |
9032 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
9033 | else | |
9034 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
9035 | GvNAMELEN(dstr) = GvNAMELEN(sstr); | |
9036 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 9037 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 9038 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 9039 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
9040 | (void)GpREFCNT_inc(GvGP(dstr)); |
9041 | break; | |
9042 | case SVt_PVIO: | |
9043 | SvANY(dstr) = new_XPVIO(); | |
9044 | SvCUR(dstr) = SvCUR(sstr); | |
9045 | SvLEN(dstr) = SvLEN(sstr); | |
9046 | SvIVX(dstr) = SvIVX(sstr); | |
9047 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9048 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9049 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 | 9050 | if (SvROK(sstr)) |
5f68ba95 | 9051 | SvRV(dstr) = SvWEAKREF(sstr) |
d2d73c3e AB |
9052 | ? sv_dup(SvRV(sstr), param) |
9053 | : sv_dup_inc(SvRV(sstr), param); | |
1d7c1841 GS |
9054 | else if (SvPVX(sstr) && SvLEN(sstr)) |
9055 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
9056 | else | |
9057 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
a8fc9800 | 9058 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9059 | if (IoOFP(sstr) == IoIFP(sstr)) |
9060 | IoOFP(dstr) = IoIFP(dstr); | |
9061 | else | |
a8fc9800 | 9062 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9063 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
9064 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
9065 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
9066 | else | |
9067 | IoDIRP(dstr) = IoDIRP(sstr); | |
9068 | IoLINES(dstr) = IoLINES(sstr); | |
9069 | IoPAGE(dstr) = IoPAGE(sstr); | |
9070 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
9071 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
9072 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); | |
d2d73c3e | 9073 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); |
1d7c1841 | 9074 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
d2d73c3e | 9075 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); |
1d7c1841 | 9076 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
d2d73c3e | 9077 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); |
1d7c1841 GS |
9078 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
9079 | IoTYPE(dstr) = IoTYPE(sstr); | |
9080 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
9081 | break; | |
9082 | case SVt_PVAV: | |
9083 | SvANY(dstr) = new_XPVAV(); | |
9084 | SvCUR(dstr) = SvCUR(sstr); | |
9085 | SvLEN(dstr) = SvLEN(sstr); | |
9086 | SvIVX(dstr) = SvIVX(sstr); | |
9087 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9088 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9089 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
9090 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); | |
1d7c1841 GS |
9091 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
9092 | if (AvARRAY((AV*)sstr)) { | |
9093 | SV **dst_ary, **src_ary; | |
9094 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
9095 | ||
9096 | src_ary = AvARRAY((AV*)sstr); | |
9097 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
9098 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
9099 | SvPVX(dstr) = (char*)dst_ary; | |
9100 | AvALLOC((AV*)dstr) = dst_ary; | |
9101 | if (AvREAL((AV*)sstr)) { | |
9102 | while (items-- > 0) | |
d2d73c3e | 9103 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
9104 | } |
9105 | else { | |
9106 | while (items-- > 0) | |
d2d73c3e | 9107 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
9108 | } |
9109 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
9110 | while (items-- > 0) { | |
9111 | *dst_ary++ = &PL_sv_undef; | |
9112 | } | |
9113 | } | |
9114 | else { | |
9115 | SvPVX(dstr) = Nullch; | |
9116 | AvALLOC((AV*)dstr) = (SV**)NULL; | |
9117 | } | |
9118 | break; | |
9119 | case SVt_PVHV: | |
9120 | SvANY(dstr) = new_XPVHV(); | |
9121 | SvCUR(dstr) = SvCUR(sstr); | |
9122 | SvLEN(dstr) = SvLEN(sstr); | |
9123 | SvIVX(dstr) = SvIVX(sstr); | |
9124 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9125 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9126 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
9127 | HvRITER((HV*)dstr) = HvRITER((HV*)sstr); |
9128 | if (HvARRAY((HV*)sstr)) { | |
1d7c1841 GS |
9129 | STRLEN i = 0; |
9130 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
9131 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
9132 | Newz(0, dxhv->xhv_array, | |
9133 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); | |
9134 | while (i <= sxhv->xhv_max) { | |
9135 | ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], | |
d2d73c3e | 9136 | !!HvSHAREKEYS(sstr), param); |
1d7c1841 GS |
9137 | ++i; |
9138 | } | |
d2d73c3e | 9139 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, !!HvSHAREKEYS(sstr), param); |
1d7c1841 GS |
9140 | } |
9141 | else { | |
9142 | SvPVX(dstr) = Nullch; | |
9143 | HvEITER((HV*)dstr) = (HE*)NULL; | |
9144 | } | |
9145 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
9146 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
c43294b8 | 9147 | /* Record stashes for possible cloning in Perl_clone(). */ |
6676db26 | 9148 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 9149 | av_push(param->stashes, dstr); |
1d7c1841 GS |
9150 | break; |
9151 | case SVt_PVFM: | |
9152 | SvANY(dstr) = new_XPVFM(); | |
9153 | FmLINES(dstr) = FmLINES(sstr); | |
9154 | goto dup_pvcv; | |
9155 | /* NOTREACHED */ | |
9156 | case SVt_PVCV: | |
9157 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 9158 | dup_pvcv: |
1d7c1841 GS |
9159 | SvCUR(dstr) = SvCUR(sstr); |
9160 | SvLEN(dstr) = SvLEN(sstr); | |
9161 | SvIVX(dstr) = SvIVX(sstr); | |
9162 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9163 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9164 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
9165 | if (SvPVX(sstr) && SvLEN(sstr)) |
9166 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
9167 | else | |
9168 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
d2d73c3e | 9169 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 GS |
9170 | CvSTART(dstr) = CvSTART(sstr); |
9171 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); | |
9172 | CvXSUB(dstr) = CvXSUB(sstr); | |
9173 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
01485f8b DM |
9174 | if (CvCONST(sstr)) { |
9175 | CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(sstr)) ? | |
9176 | SvREFCNT_inc(CvXSUBANY(sstr).any_ptr) : | |
9177 | sv_dup_inc(CvXSUBANY(sstr).any_ptr, param); | |
9178 | } | |
d2d73c3e AB |
9179 | CvGV(dstr) = gv_dup(CvGV(sstr), param); |
9180 | if (param->flags & CLONEf_COPY_STACKS) { | |
9181 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
9182 | } else { | |
9183 | CvDEPTH(dstr) = 0; | |
9184 | } | |
1d7c1841 GS |
9185 | if (CvPADLIST(sstr) && !AvREAL(CvPADLIST(sstr))) { |
9186 | /* XXX padlists are real, but pretend to be not */ | |
9187 | AvREAL_on(CvPADLIST(sstr)); | |
d2d73c3e | 9188 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
1d7c1841 GS |
9189 | AvREAL_off(CvPADLIST(sstr)); |
9190 | AvREAL_off(CvPADLIST(dstr)); | |
9191 | } | |
9192 | else | |
d2d73c3e | 9193 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr), param); |
282f25c9 | 9194 | if (!CvANON(sstr) || CvCLONED(sstr)) |
d2d73c3e | 9195 | CvOUTSIDE(dstr) = cv_dup_inc(CvOUTSIDE(sstr), param); |
282f25c9 | 9196 | else |
d2d73c3e | 9197 | CvOUTSIDE(dstr) = cv_dup(CvOUTSIDE(sstr), param); |
1d7c1841 | 9198 | CvFLAGS(dstr) = CvFLAGS(sstr); |
54356c7d | 9199 | CvFILE(dstr) = CvXSUB(sstr) ? CvFILE(sstr) : SAVEPV(CvFILE(sstr)); |
1d7c1841 GS |
9200 | break; |
9201 | default: | |
9202 | Perl_croak(aTHX_ "Bizarre SvTYPE [%d]", SvTYPE(sstr)); | |
9203 | break; | |
9204 | } | |
9205 | ||
9206 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
9207 | ++PL_sv_objcount; | |
9208 | ||
9209 | return dstr; | |
d2d73c3e | 9210 | } |
1d7c1841 | 9211 | |
645c22ef DM |
9212 | /* duplicate a context */ |
9213 | ||
1d7c1841 | 9214 | PERL_CONTEXT * |
a8fc9800 | 9215 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) |
1d7c1841 GS |
9216 | { |
9217 | PERL_CONTEXT *ncxs; | |
9218 | ||
9219 | if (!cxs) | |
9220 | return (PERL_CONTEXT*)NULL; | |
9221 | ||
9222 | /* look for it in the table first */ | |
9223 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
9224 | if (ncxs) | |
9225 | return ncxs; | |
9226 | ||
9227 | /* create anew and remember what it is */ | |
9228 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
9229 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
9230 | ||
9231 | while (ix >= 0) { | |
9232 | PERL_CONTEXT *cx = &cxs[ix]; | |
9233 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
9234 | ncx->cx_type = cx->cx_type; | |
9235 | if (CxTYPE(cx) == CXt_SUBST) { | |
9236 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
9237 | } | |
9238 | else { | |
9239 | ncx->blk_oldsp = cx->blk_oldsp; | |
9240 | ncx->blk_oldcop = cx->blk_oldcop; | |
9241 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
9242 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
9243 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
9244 | ncx->blk_oldpm = cx->blk_oldpm; | |
9245 | ncx->blk_gimme = cx->blk_gimme; | |
9246 | switch (CxTYPE(cx)) { | |
9247 | case CXt_SUB: | |
9248 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
9249 | ? cv_dup_inc(cx->blk_sub.cv, param) |
9250 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 9251 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 9252 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 9253 | : Nullav); |
d2d73c3e | 9254 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
9255 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
9256 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
9257 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
9258 | break; | |
9259 | case CXt_EVAL: | |
9260 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
9261 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
d2d73c3e | 9262 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param);; |
1d7c1841 | 9263 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 9264 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
1d7c1841 GS |
9265 | break; |
9266 | case CXt_LOOP: | |
9267 | ncx->blk_loop.label = cx->blk_loop.label; | |
9268 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
9269 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
9270 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
9271 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
9272 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
9273 | ? cx->blk_loop.iterdata | |
d2d73c3e | 9274 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
a4b82a6f GS |
9275 | ncx->blk_loop.oldcurpad |
9276 | = (SV**)ptr_table_fetch(PL_ptr_table, | |
9277 | cx->blk_loop.oldcurpad); | |
d2d73c3e AB |
9278 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
9279 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
9280 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
9281 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
9282 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
9283 | break; | |
9284 | case CXt_FORMAT: | |
d2d73c3e AB |
9285 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
9286 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
9287 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 GS |
9288 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
9289 | break; | |
9290 | case CXt_BLOCK: | |
9291 | case CXt_NULL: | |
9292 | break; | |
9293 | } | |
9294 | } | |
9295 | --ix; | |
9296 | } | |
9297 | return ncxs; | |
9298 | } | |
9299 | ||
645c22ef DM |
9300 | /* duplicate a stack info structure */ |
9301 | ||
1d7c1841 | 9302 | PERL_SI * |
a8fc9800 | 9303 | Perl_si_dup(pTHX_ PERL_SI *si, CLONE_PARAMS* param) |
1d7c1841 GS |
9304 | { |
9305 | PERL_SI *nsi; | |
9306 | ||
9307 | if (!si) | |
9308 | return (PERL_SI*)NULL; | |
9309 | ||
9310 | /* look for it in the table first */ | |
9311 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
9312 | if (nsi) | |
9313 | return nsi; | |
9314 | ||
9315 | /* create anew and remember what it is */ | |
9316 | Newz(56, nsi, 1, PERL_SI); | |
9317 | ptr_table_store(PL_ptr_table, si, nsi); | |
9318 | ||
d2d73c3e | 9319 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
9320 | nsi->si_cxix = si->si_cxix; |
9321 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 9322 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 9323 | nsi->si_type = si->si_type; |
d2d73c3e AB |
9324 | nsi->si_prev = si_dup(si->si_prev, param); |
9325 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
9326 | nsi->si_markoff = si->si_markoff; |
9327 | ||
9328 | return nsi; | |
9329 | } | |
9330 | ||
9331 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
9332 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
9333 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
9334 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
9335 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
9336 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
9337 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) | |
9338 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
9339 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
9340 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
9341 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
9342 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
9343 | ||
9344 | /* XXXXX todo */ | |
9345 | #define pv_dup_inc(p) SAVEPV(p) | |
9346 | #define pv_dup(p) SAVEPV(p) | |
9347 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
9348 | ||
645c22ef DM |
9349 | /* map any object to the new equivent - either something in the |
9350 | * ptr table, or something in the interpreter structure | |
9351 | */ | |
9352 | ||
1d7c1841 GS |
9353 | void * |
9354 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
9355 | { | |
9356 | void *ret; | |
9357 | ||
9358 | if (!v) | |
9359 | return (void*)NULL; | |
9360 | ||
9361 | /* look for it in the table first */ | |
9362 | ret = ptr_table_fetch(PL_ptr_table, v); | |
9363 | if (ret) | |
9364 | return ret; | |
9365 | ||
9366 | /* see if it is part of the interpreter structure */ | |
9367 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
acfe0abc | 9368 | ret = (void*)(((char*)aTHX) + (((char*)v) - (char*)proto_perl)); |
1d7c1841 GS |
9369 | else |
9370 | ret = v; | |
9371 | ||
9372 | return ret; | |
9373 | } | |
9374 | ||
645c22ef DM |
9375 | /* duplicate the save stack */ |
9376 | ||
1d7c1841 | 9377 | ANY * |
a8fc9800 | 9378 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) |
1d7c1841 GS |
9379 | { |
9380 | ANY *ss = proto_perl->Tsavestack; | |
9381 | I32 ix = proto_perl->Tsavestack_ix; | |
9382 | I32 max = proto_perl->Tsavestack_max; | |
9383 | ANY *nss; | |
9384 | SV *sv; | |
9385 | GV *gv; | |
9386 | AV *av; | |
9387 | HV *hv; | |
9388 | void* ptr; | |
9389 | int intval; | |
9390 | long longval; | |
9391 | GP *gp; | |
9392 | IV iv; | |
9393 | I32 i; | |
c4e33207 | 9394 | char *c = NULL; |
1d7c1841 | 9395 | void (*dptr) (void*); |
acfe0abc | 9396 | void (*dxptr) (pTHX_ void*); |
e977893f | 9397 | OP *o; |
1d7c1841 GS |
9398 | |
9399 | Newz(54, nss, max, ANY); | |
9400 | ||
9401 | while (ix > 0) { | |
9402 | i = POPINT(ss,ix); | |
9403 | TOPINT(nss,ix) = i; | |
9404 | switch (i) { | |
9405 | case SAVEt_ITEM: /* normal string */ | |
9406 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9407 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9408 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9409 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9410 | break; |
9411 | case SAVEt_SV: /* scalar reference */ | |
9412 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9413 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9414 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9415 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 9416 | break; |
f4dd75d9 GS |
9417 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
9418 | c = (char*)POPPTR(ss,ix); | |
9419 | TOPPTR(nss,ix) = pv_dup(c); | |
9420 | ptr = POPPTR(ss,ix); | |
9421 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9422 | break; | |
1d7c1841 GS |
9423 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
9424 | case SAVEt_SVREF: /* scalar reference */ | |
9425 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9426 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9427 | ptr = POPPTR(ss,ix); |
9428 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
9429 | break; | |
9430 | case SAVEt_AV: /* array reference */ | |
9431 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9432 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 9433 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9434 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9435 | break; |
9436 | case SAVEt_HV: /* hash reference */ | |
9437 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9438 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 9439 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 9440 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9441 | break; |
9442 | case SAVEt_INT: /* int reference */ | |
9443 | ptr = POPPTR(ss,ix); | |
9444 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9445 | intval = (int)POPINT(ss,ix); | |
9446 | TOPINT(nss,ix) = intval; | |
9447 | break; | |
9448 | case SAVEt_LONG: /* long reference */ | |
9449 | ptr = POPPTR(ss,ix); | |
9450 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9451 | longval = (long)POPLONG(ss,ix); | |
9452 | TOPLONG(nss,ix) = longval; | |
9453 | break; | |
9454 | case SAVEt_I32: /* I32 reference */ | |
9455 | case SAVEt_I16: /* I16 reference */ | |
9456 | case SAVEt_I8: /* I8 reference */ | |
9457 | ptr = POPPTR(ss,ix); | |
9458 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9459 | i = POPINT(ss,ix); | |
9460 | TOPINT(nss,ix) = i; | |
9461 | break; | |
9462 | case SAVEt_IV: /* IV reference */ | |
9463 | ptr = POPPTR(ss,ix); | |
9464 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9465 | iv = POPIV(ss,ix); | |
9466 | TOPIV(nss,ix) = iv; | |
9467 | break; | |
9468 | case SAVEt_SPTR: /* SV* reference */ | |
9469 | ptr = POPPTR(ss,ix); | |
9470 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9471 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9472 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
9473 | break; |
9474 | case SAVEt_VPTR: /* random* reference */ | |
9475 | ptr = POPPTR(ss,ix); | |
9476 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9477 | ptr = POPPTR(ss,ix); | |
9478 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9479 | break; | |
9480 | case SAVEt_PPTR: /* char* reference */ | |
9481 | ptr = POPPTR(ss,ix); | |
9482 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9483 | c = (char*)POPPTR(ss,ix); | |
9484 | TOPPTR(nss,ix) = pv_dup(c); | |
9485 | break; | |
9486 | case SAVEt_HPTR: /* HV* reference */ | |
9487 | ptr = POPPTR(ss,ix); | |
9488 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9489 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9490 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
9491 | break; |
9492 | case SAVEt_APTR: /* AV* reference */ | |
9493 | ptr = POPPTR(ss,ix); | |
9494 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9495 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9496 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
9497 | break; |
9498 | case SAVEt_NSTAB: | |
9499 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 9500 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
9501 | break; |
9502 | case SAVEt_GP: /* scalar reference */ | |
9503 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 9504 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
9505 | (void)GpREFCNT_inc(gp); |
9506 | gv = (GV*)POPPTR(ss,ix); | |
2ed3c8fc | 9507 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 GS |
9508 | c = (char*)POPPTR(ss,ix); |
9509 | TOPPTR(nss,ix) = pv_dup(c); | |
9510 | iv = POPIV(ss,ix); | |
9511 | TOPIV(nss,ix) = iv; | |
9512 | iv = POPIV(ss,ix); | |
9513 | TOPIV(nss,ix) = iv; | |
9514 | break; | |
9515 | case SAVEt_FREESV: | |
26d9b02f | 9516 | case SAVEt_MORTALIZESV: |
1d7c1841 | 9517 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9518 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9519 | break; |
9520 | case SAVEt_FREEOP: | |
9521 | ptr = POPPTR(ss,ix); | |
9522 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
9523 | /* these are assumed to be refcounted properly */ | |
9524 | switch (((OP*)ptr)->op_type) { | |
9525 | case OP_LEAVESUB: | |
9526 | case OP_LEAVESUBLV: | |
9527 | case OP_LEAVEEVAL: | |
9528 | case OP_LEAVE: | |
9529 | case OP_SCOPE: | |
9530 | case OP_LEAVEWRITE: | |
e977893f GS |
9531 | TOPPTR(nss,ix) = ptr; |
9532 | o = (OP*)ptr; | |
9533 | OpREFCNT_inc(o); | |
1d7c1841 GS |
9534 | break; |
9535 | default: | |
9536 | TOPPTR(nss,ix) = Nullop; | |
9537 | break; | |
9538 | } | |
9539 | } | |
9540 | else | |
9541 | TOPPTR(nss,ix) = Nullop; | |
9542 | break; | |
9543 | case SAVEt_FREEPV: | |
9544 | c = (char*)POPPTR(ss,ix); | |
9545 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9546 | break; | |
9547 | case SAVEt_CLEARSV: | |
9548 | longval = POPLONG(ss,ix); | |
9549 | TOPLONG(nss,ix) = longval; | |
9550 | break; | |
9551 | case SAVEt_DELETE: | |
9552 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 9553 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9554 | c = (char*)POPPTR(ss,ix); |
9555 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
9556 | i = POPINT(ss,ix); | |
9557 | TOPINT(nss,ix) = i; | |
9558 | break; | |
9559 | case SAVEt_DESTRUCTOR: | |
9560 | ptr = POPPTR(ss,ix); | |
9561 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9562 | dptr = POPDPTR(ss,ix); | |
ef75a179 | 9563 | TOPDPTR(nss,ix) = (void (*)(void*))any_dup((void *)dptr, proto_perl); |
1d7c1841 GS |
9564 | break; |
9565 | case SAVEt_DESTRUCTOR_X: | |
9566 | ptr = POPPTR(ss,ix); | |
9567 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
9568 | dxptr = POPDXPTR(ss,ix); | |
acfe0abc | 9569 | TOPDXPTR(nss,ix) = (void (*)(pTHX_ void*))any_dup((void *)dxptr, proto_perl); |
1d7c1841 GS |
9570 | break; |
9571 | case SAVEt_REGCONTEXT: | |
9572 | case SAVEt_ALLOC: | |
9573 | i = POPINT(ss,ix); | |
9574 | TOPINT(nss,ix) = i; | |
9575 | ix -= i; | |
9576 | break; | |
9577 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
9578 | i = POPINT(ss,ix); | |
9579 | TOPINT(nss,ix) = i; | |
9580 | break; | |
9581 | case SAVEt_AELEM: /* array element */ | |
9582 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9583 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
9584 | i = POPINT(ss,ix); |
9585 | TOPINT(nss,ix) = i; | |
9586 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9587 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
9588 | break; |
9589 | case SAVEt_HELEM: /* hash element */ | |
9590 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9591 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9592 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 9593 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 9594 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 9595 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
9596 | break; |
9597 | case SAVEt_OP: | |
9598 | ptr = POPPTR(ss,ix); | |
9599 | TOPPTR(nss,ix) = ptr; | |
9600 | break; | |
9601 | case SAVEt_HINTS: | |
9602 | i = POPINT(ss,ix); | |
9603 | TOPINT(nss,ix) = i; | |
9604 | break; | |
c4410b1b GS |
9605 | case SAVEt_COMPPAD: |
9606 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 9607 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 9608 | break; |
c3564e5c GS |
9609 | case SAVEt_PADSV: |
9610 | longval = (long)POPLONG(ss,ix); | |
9611 | TOPLONG(nss,ix) = longval; | |
9612 | ptr = POPPTR(ss,ix); | |
9613 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
9614 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 9615 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 9616 | break; |
1d7c1841 GS |
9617 | default: |
9618 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
9619 | } | |
9620 | } | |
9621 | ||
9622 | return nss; | |
9623 | } | |
9624 | ||
645c22ef DM |
9625 | /* |
9626 | =for apidoc perl_clone | |
9627 | ||
9628 | Create and return a new interpreter by cloning the current one. | |
9629 | ||
9630 | =cut | |
9631 | */ | |
9632 | ||
9633 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
3fc56081 NK |
9634 | EXTERN_C PerlInterpreter * |
9635 | perl_clone_host(PerlInterpreter* proto_perl, UV flags); | |
645c22ef | 9636 | |
1d7c1841 GS |
9637 | PerlInterpreter * |
9638 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
9639 | { | |
1d7c1841 | 9640 | #ifdef PERL_IMPLICIT_SYS |
c43294b8 AB |
9641 | |
9642 | /* perlhost.h so we need to call into it | |
9643 | to clone the host, CPerlHost should have a c interface, sky */ | |
9644 | ||
9645 | if (flags & CLONEf_CLONE_HOST) { | |
9646 | return perl_clone_host(proto_perl,flags); | |
9647 | } | |
9648 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
9649 | proto_perl->IMem, |
9650 | proto_perl->IMemShared, | |
9651 | proto_perl->IMemParse, | |
9652 | proto_perl->IEnv, | |
9653 | proto_perl->IStdIO, | |
9654 | proto_perl->ILIO, | |
9655 | proto_perl->IDir, | |
9656 | proto_perl->ISock, | |
9657 | proto_perl->IProc); | |
9658 | } | |
9659 | ||
9660 | PerlInterpreter * | |
9661 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
9662 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
9663 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
9664 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
9665 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
9666 | struct IPerlProc* ipP) | |
9667 | { | |
9668 | /* XXX many of the string copies here can be optimized if they're | |
9669 | * constants; they need to be allocated as common memory and just | |
9670 | * their pointers copied. */ | |
9671 | ||
9672 | IV i; | |
a0ae6670 | 9673 | CLONE_PARAMS* param = (CLONE_PARAMS*) malloc(sizeof(CLONE_PARAMS)); |
d2d73c3e | 9674 | |
1d7c1841 | 9675 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
ba869deb | 9676 | PERL_SET_THX(my_perl); |
1d7c1841 | 9677 | |
acfe0abc | 9678 | # ifdef DEBUGGING |
1d7c1841 GS |
9679 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); |
9680 | PL_markstack = 0; | |
9681 | PL_scopestack = 0; | |
9682 | PL_savestack = 0; | |
9683 | PL_retstack = 0; | |
66fe0623 | 9684 | PL_sig_pending = 0; |
45ef2ede | 9685 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
acfe0abc | 9686 | # else /* !DEBUGGING */ |
1d7c1841 | 9687 | Zero(my_perl, 1, PerlInterpreter); |
acfe0abc | 9688 | # endif /* DEBUGGING */ |
1d7c1841 GS |
9689 | |
9690 | /* host pointers */ | |
9691 | PL_Mem = ipM; | |
9692 | PL_MemShared = ipMS; | |
9693 | PL_MemParse = ipMP; | |
9694 | PL_Env = ipE; | |
9695 | PL_StdIO = ipStd; | |
9696 | PL_LIO = ipLIO; | |
9697 | PL_Dir = ipD; | |
9698 | PL_Sock = ipS; | |
9699 | PL_Proc = ipP; | |
1d7c1841 GS |
9700 | #else /* !PERL_IMPLICIT_SYS */ |
9701 | IV i; | |
a8fc9800 | 9702 | CLONE_PARAMS* param = (CLONE_PARAMS*) malloc(sizeof(CLONE_PARAMS)); |
1d7c1841 | 9703 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 9704 | PERL_SET_THX(my_perl); |
1d7c1841 | 9705 | |
d2d73c3e AB |
9706 | |
9707 | ||
1d7c1841 GS |
9708 | # ifdef DEBUGGING |
9709 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); | |
9710 | PL_markstack = 0; | |
9711 | PL_scopestack = 0; | |
9712 | PL_savestack = 0; | |
9713 | PL_retstack = 0; | |
66fe0623 | 9714 | PL_sig_pending = 0; |
1d7c1841 GS |
9715 | # else /* !DEBUGGING */ |
9716 | Zero(my_perl, 1, PerlInterpreter); | |
9717 | # endif /* DEBUGGING */ | |
9718 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 9719 | param->flags = flags; |
1d7c1841 GS |
9720 | |
9721 | /* arena roots */ | |
9722 | PL_xiv_arenaroot = NULL; | |
9723 | PL_xiv_root = NULL; | |
612f20c3 | 9724 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 9725 | PL_xnv_root = NULL; |
612f20c3 | 9726 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 9727 | PL_xrv_root = NULL; |
612f20c3 | 9728 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 9729 | PL_xpv_root = NULL; |
612f20c3 | 9730 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 9731 | PL_xpviv_root = NULL; |
612f20c3 | 9732 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 9733 | PL_xpvnv_root = NULL; |
612f20c3 | 9734 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 9735 | PL_xpvcv_root = NULL; |
612f20c3 | 9736 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 9737 | PL_xpvav_root = NULL; |
612f20c3 | 9738 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 9739 | PL_xpvhv_root = NULL; |
612f20c3 | 9740 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 9741 | PL_xpvmg_root = NULL; |
612f20c3 | 9742 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 9743 | PL_xpvlv_root = NULL; |
612f20c3 | 9744 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 9745 | PL_xpvbm_root = NULL; |
612f20c3 | 9746 | PL_he_arenaroot = NULL; |
1d7c1841 GS |
9747 | PL_he_root = NULL; |
9748 | PL_nice_chunk = NULL; | |
9749 | PL_nice_chunk_size = 0; | |
9750 | PL_sv_count = 0; | |
9751 | PL_sv_objcount = 0; | |
9752 | PL_sv_root = Nullsv; | |
9753 | PL_sv_arenaroot = Nullsv; | |
9754 | ||
9755 | PL_debug = proto_perl->Idebug; | |
9756 | ||
e5dd39fc AB |
9757 | #ifdef USE_REENTRANT_API |
9758 | New(31337, PL_reentrant_buffer,1, REBUF); | |
9759 | New(31337, PL_reentrant_buffer->tmbuff,1, struct tm); | |
9760 | #endif | |
9761 | ||
1d7c1841 GS |
9762 | /* create SV map for pointer relocation */ |
9763 | PL_ptr_table = ptr_table_new(); | |
9764 | ||
9765 | /* initialize these special pointers as early as possible */ | |
9766 | SvANY(&PL_sv_undef) = NULL; | |
9767 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
9768 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
9769 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
9770 | ||
1d7c1841 | 9771 | SvANY(&PL_sv_no) = new_XPVNV(); |
1d7c1841 GS |
9772 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
9773 | SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9774 | SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0); | |
9775 | SvCUR(&PL_sv_no) = 0; | |
9776 | SvLEN(&PL_sv_no) = 1; | |
9777 | SvNVX(&PL_sv_no) = 0; | |
9778 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); | |
9779 | ||
1d7c1841 | 9780 | SvANY(&PL_sv_yes) = new_XPVNV(); |
1d7c1841 GS |
9781 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
9782 | SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
9783 | SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1); | |
9784 | SvCUR(&PL_sv_yes) = 1; | |
9785 | SvLEN(&PL_sv_yes) = 2; | |
9786 | SvNVX(&PL_sv_yes) = 1; | |
9787 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); | |
9788 | ||
9789 | /* create shared string table */ | |
9790 | PL_strtab = newHV(); | |
9791 | HvSHAREKEYS_off(PL_strtab); | |
9792 | hv_ksplit(PL_strtab, 512); | |
9793 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); | |
9794 | ||
9795 | PL_compiling = proto_perl->Icompiling; | |
9796 | PL_compiling.cop_stashpv = SAVEPV(PL_compiling.cop_stashpv); | |
9797 | PL_compiling.cop_file = SAVEPV(PL_compiling.cop_file); | |
9798 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); | |
9799 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 9800 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 9801 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 9802 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
9803 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
9804 | ||
9805 | /* pseudo environmental stuff */ | |
9806 | PL_origargc = proto_perl->Iorigargc; | |
9807 | i = PL_origargc; | |
9808 | New(0, PL_origargv, i+1, char*); | |
9809 | PL_origargv[i] = '\0'; | |
9810 | while (i-- > 0) { | |
9811 | PL_origargv[i] = SAVEPV(proto_perl->Iorigargv[i]); | |
9812 | } | |
d2d73c3e | 9813 | |
d2d73c3e AB |
9814 | param->stashes = newAV(); /* Setup array of objects to call clone on */ |
9815 | ||
a1ea730d | 9816 | #ifdef PERLIO_LAYERS |
3a1ee7e8 NIS |
9817 | /* Clone PerlIO tables as soon as we can handle general xx_dup() */ |
9818 | PerlIO_clone(aTHX_ proto_perl, param); | |
a1ea730d | 9819 | #endif |
d2d73c3e AB |
9820 | |
9821 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
9822 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
9823 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 9824 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
9825 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
9826 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
9827 | |
9828 | /* switches */ | |
9829 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 9830 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
9831 | PL_localpatches = proto_perl->Ilocalpatches; |
9832 | PL_splitstr = proto_perl->Isplitstr; | |
9833 | PL_preprocess = proto_perl->Ipreprocess; | |
9834 | PL_minus_n = proto_perl->Iminus_n; | |
9835 | PL_minus_p = proto_perl->Iminus_p; | |
9836 | PL_minus_l = proto_perl->Iminus_l; | |
9837 | PL_minus_a = proto_perl->Iminus_a; | |
9838 | PL_minus_F = proto_perl->Iminus_F; | |
9839 | PL_doswitches = proto_perl->Idoswitches; | |
9840 | PL_dowarn = proto_perl->Idowarn; | |
9841 | PL_doextract = proto_perl->Idoextract; | |
9842 | PL_sawampersand = proto_perl->Isawampersand; | |
9843 | PL_unsafe = proto_perl->Iunsafe; | |
9844 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 9845 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
9846 | PL_perldb = proto_perl->Iperldb; |
9847 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
1cbb0781 | 9848 | PL_exit_flags = proto_perl->Iexit_flags; |
1d7c1841 GS |
9849 | |
9850 | /* magical thingies */ | |
9851 | /* XXX time(&PL_basetime) when asked for? */ | |
9852 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 9853 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
9854 | |
9855 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
9856 | PL_multiline = proto_perl->Imultiline; | |
9857 | PL_statusvalue = proto_perl->Istatusvalue; | |
9858 | #ifdef VMS | |
9859 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
9860 | #endif | |
0a378802 | 9861 | PL_encoding = sv_dup(proto_perl->Iencoding, param); |
1d7c1841 | 9862 | |
d2f185dc AMS |
9863 | /* Clone the regex array */ |
9864 | PL_regex_padav = newAV(); | |
9865 | { | |
9866 | I32 len = av_len((AV*)proto_perl->Iregex_padav); | |
9867 | SV** regexen = AvARRAY((AV*)proto_perl->Iregex_padav); | |
0f95fc41 AB |
9868 | av_push(PL_regex_padav, |
9869 | sv_dup_inc(regexen[0],param)); | |
9870 | for(i = 1; i <= len; i++) { | |
9871 | if(SvREPADTMP(regexen[i])) { | |
9872 | av_push(PL_regex_padav, sv_dup_inc(regexen[i], param)); | |
8cf8f3d1 | 9873 | } else { |
0f95fc41 AB |
9874 | av_push(PL_regex_padav, |
9875 | SvREFCNT_inc( | |
8cf8f3d1 | 9876 | newSViv(PTR2IV(re_dup(INT2PTR(REGEXP *, |
cbfa9890 | 9877 | SvIVX(regexen[i])), param))) |
0f95fc41 AB |
9878 | )); |
9879 | } | |
d2f185dc AMS |
9880 | } |
9881 | } | |
9882 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 9883 | |
1d7c1841 | 9884 | /* shortcuts to various I/O objects */ |
d2d73c3e AB |
9885 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
9886 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
9887 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
9888 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
9889 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
9890 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
9891 | |
9892 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 9893 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
9894 | |
9895 | /* shortcuts to misc objects */ | |
d2d73c3e | 9896 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
9897 | |
9898 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
9899 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
9900 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
9901 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
9902 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
9903 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
9904 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
9905 | PL_lineary = av_dup(proto_perl->Ilineary, param); | |
9906 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
9907 | |
9908 | /* symbol tables */ | |
d2d73c3e AB |
9909 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
9910 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
9911 | PL_nullstash = hv_dup(proto_perl->Inullstash, param); | |
9912 | PL_debstash = hv_dup(proto_perl->Idebstash, param); | |
9913 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
9914 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
9915 | ||
9916 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
ee1c5a4e | 9917 | PL_beginav_save = av_dup_inc(proto_perl->Ibeginav_save, param); |
d2d73c3e AB |
9918 | PL_endav = av_dup_inc(proto_perl->Iendav, param); |
9919 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
9920 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
9921 | |
9922 | PL_sub_generation = proto_perl->Isub_generation; | |
9923 | ||
9924 | /* funky return mechanisms */ | |
9925 | PL_forkprocess = proto_perl->Iforkprocess; | |
9926 | ||
9927 | /* subprocess state */ | |
d2d73c3e | 9928 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
9929 | |
9930 | /* internal state */ | |
9931 | PL_tainting = proto_perl->Itainting; | |
9932 | PL_maxo = proto_perl->Imaxo; | |
9933 | if (proto_perl->Iop_mask) | |
9934 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
9935 | else | |
9936 | PL_op_mask = Nullch; | |
9937 | ||
9938 | /* current interpreter roots */ | |
d2d73c3e | 9939 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
9940 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
9941 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 9942 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
9943 | PL_eval_start = proto_perl->Ieval_start; |
9944 | ||
9945 | /* runtime control stuff */ | |
9946 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
9947 | PL_copline = proto_perl->Icopline; | |
9948 | ||
9949 | PL_filemode = proto_perl->Ifilemode; | |
9950 | PL_lastfd = proto_perl->Ilastfd; | |
9951 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
9952 | PL_Argv = NULL; | |
9953 | PL_Cmd = Nullch; | |
9954 | PL_gensym = proto_perl->Igensym; | |
9955 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 9956 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
9957 | PL_laststatval = proto_perl->Ilaststatval; |
9958 | PL_laststype = proto_perl->Ilaststype; | |
9959 | PL_mess_sv = Nullsv; | |
9960 | ||
d2d73c3e | 9961 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
9962 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
9963 | ||
9964 | /* interpreter atexit processing */ | |
9965 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
9966 | if (PL_exitlistlen) { | |
9967 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
9968 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
9969 | } | |
9970 | else | |
9971 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 9972 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
19e8ce8e AB |
9973 | PL_custom_op_names = hv_dup_inc(proto_perl->Icustom_op_names,param); |
9974 | PL_custom_op_descs = hv_dup_inc(proto_perl->Icustom_op_descs,param); | |
1d7c1841 GS |
9975 | |
9976 | PL_profiledata = NULL; | |
a8fc9800 | 9977 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<', param); |
1d7c1841 | 9978 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
d2d73c3e | 9979 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 9980 | |
d2d73c3e AB |
9981 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
9982 | PL_comppad = av_dup(proto_perl->Icomppad, param); | |
9983 | PL_comppad_name = av_dup(proto_perl->Icomppad_name, param); | |
1d7c1841 GS |
9984 | PL_comppad_name_fill = proto_perl->Icomppad_name_fill; |
9985 | PL_comppad_name_floor = proto_perl->Icomppad_name_floor; | |
9986 | PL_curpad = (SV**)ptr_table_fetch(PL_ptr_table, | |
9987 | proto_perl->Tcurpad); | |
9988 | ||
9989 | #ifdef HAVE_INTERP_INTERN | |
9990 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
9991 | #endif | |
9992 | ||
9993 | /* more statics moved here */ | |
9994 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 9995 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
9996 | |
9997 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
9998 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
9999 | ||
10000 | PL_uid = proto_perl->Iuid; | |
10001 | PL_euid = proto_perl->Ieuid; | |
10002 | PL_gid = proto_perl->Igid; | |
10003 | PL_egid = proto_perl->Iegid; | |
10004 | PL_nomemok = proto_perl->Inomemok; | |
10005 | PL_an = proto_perl->Ian; | |
10006 | PL_cop_seqmax = proto_perl->Icop_seqmax; | |
10007 | PL_op_seqmax = proto_perl->Iop_seqmax; | |
10008 | PL_evalseq = proto_perl->Ievalseq; | |
10009 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
10010 | PL_origalen = proto_perl->Iorigalen; | |
10011 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
10012 | PL_osname = SAVEPV(proto_perl->Iosname); | |
0bb09c15 | 10013 | PL_sh_path = proto_perl->Ish_path; /* XXX never deallocated */ |
1d7c1841 GS |
10014 | PL_sighandlerp = proto_perl->Isighandlerp; |
10015 | ||
10016 | ||
10017 | PL_runops = proto_perl->Irunops; | |
10018 | ||
10019 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
10020 | ||
10021 | #ifdef CSH | |
10022 | PL_cshlen = proto_perl->Icshlen; | |
74f1b2b8 | 10023 | PL_cshname = proto_perl->Icshname; /* XXX never deallocated */ |
1d7c1841 GS |
10024 | #endif |
10025 | ||
10026 | PL_lex_state = proto_perl->Ilex_state; | |
10027 | PL_lex_defer = proto_perl->Ilex_defer; | |
10028 | PL_lex_expect = proto_perl->Ilex_expect; | |
10029 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
10030 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
10031 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
10032 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
10033 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
10034 | PL_lex_op = proto_perl->Ilex_op; |
10035 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
10036 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
10037 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
10038 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
10039 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
10040 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
10041 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
10042 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
10043 | ||
10044 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
10045 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
10046 | PL_nexttoke = proto_perl->Inexttoke; | |
10047 | ||
d2d73c3e | 10048 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); |
1d7c1841 GS |
10049 | i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); |
10050 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10051 | i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); | |
10052 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10053 | i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); | |
10054 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10055 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
10056 | i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); | |
10057 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10058 | PL_pending_ident = proto_perl->Ipending_ident; | |
10059 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
10060 | ||
10061 | PL_expect = proto_perl->Iexpect; | |
10062 | ||
10063 | PL_multi_start = proto_perl->Imulti_start; | |
10064 | PL_multi_end = proto_perl->Imulti_end; | |
10065 | PL_multi_open = proto_perl->Imulti_open; | |
10066 | PL_multi_close = proto_perl->Imulti_close; | |
10067 | ||
10068 | PL_error_count = proto_perl->Ierror_count; | |
10069 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 10070 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 GS |
10071 | |
10072 | PL_min_intro_pending = proto_perl->Imin_intro_pending; | |
10073 | PL_max_intro_pending = proto_perl->Imax_intro_pending; | |
10074 | PL_padix = proto_perl->Ipadix; | |
10075 | PL_padix_floor = proto_perl->Ipadix_floor; | |
10076 | PL_pad_reset_pending = proto_perl->Ipad_reset_pending; | |
10077 | ||
10078 | i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); | |
10079 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10080 | i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); | |
10081 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
10082 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
10083 | PL_in_my = proto_perl->Iin_my; | |
d2d73c3e | 10084 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
10085 | #ifdef FCRYPT |
10086 | PL_cryptseen = proto_perl->Icryptseen; | |
10087 | #endif | |
10088 | ||
10089 | PL_hints = proto_perl->Ihints; | |
10090 | ||
10091 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
10092 | ||
10093 | #ifdef USE_LOCALE_COLLATE | |
10094 | PL_collation_ix = proto_perl->Icollation_ix; | |
10095 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
10096 | PL_collation_standard = proto_perl->Icollation_standard; | |
10097 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
10098 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
10099 | #endif /* USE_LOCALE_COLLATE */ | |
10100 | ||
10101 | #ifdef USE_LOCALE_NUMERIC | |
10102 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
10103 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
10104 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 10105 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
10106 | #endif /* !USE_LOCALE_NUMERIC */ |
10107 | ||
10108 | /* utf8 character classes */ | |
d2d73c3e AB |
10109 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
10110 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
10111 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
10112 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
10113 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
10114 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
10115 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
10116 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
10117 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
10118 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
10119 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
10120 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
10121 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
10122 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
10123 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
10124 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
10125 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
b4e400f9 | 10126 | PL_utf8_tofold = sv_dup_inc(proto_perl->Iutf8_tofold, param); |
1d7c1841 GS |
10127 | |
10128 | /* swatch cache */ | |
10129 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
10130 | PL_last_swash_klen = 0; | |
10131 | PL_last_swash_key[0]= '\0'; | |
10132 | PL_last_swash_tmps = (U8*)NULL; | |
10133 | PL_last_swash_slen = 0; | |
10134 | ||
10135 | /* perly.c globals */ | |
10136 | PL_yydebug = proto_perl->Iyydebug; | |
10137 | PL_yynerrs = proto_perl->Iyynerrs; | |
10138 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
10139 | PL_yychar = proto_perl->Iyychar; | |
10140 | PL_yyval = proto_perl->Iyyval; | |
10141 | PL_yylval = proto_perl->Iyylval; | |
10142 | ||
10143 | PL_glob_index = proto_perl->Iglob_index; | |
10144 | PL_srand_called = proto_perl->Isrand_called; | |
10145 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
10146 | PL_bitcount = Nullch; /* reinits on demand */ | |
10147 | ||
66fe0623 NIS |
10148 | if (proto_perl->Ipsig_pend) { |
10149 | Newz(0, PL_psig_pend, SIG_SIZE, int); | |
9dd79c3f | 10150 | } |
66fe0623 NIS |
10151 | else { |
10152 | PL_psig_pend = (int*)NULL; | |
10153 | } | |
10154 | ||
1d7c1841 | 10155 | if (proto_perl->Ipsig_ptr) { |
76d3c696 JH |
10156 | Newz(0, PL_psig_ptr, SIG_SIZE, SV*); |
10157 | Newz(0, PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 10158 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
10159 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
10160 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
10161 | } |
10162 | } | |
10163 | else { | |
10164 | PL_psig_ptr = (SV**)NULL; | |
10165 | PL_psig_name = (SV**)NULL; | |
10166 | } | |
10167 | ||
10168 | /* thrdvar.h stuff */ | |
10169 | ||
a0739874 | 10170 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
10171 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
10172 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
10173 | PL_tmps_max = proto_perl->Ttmps_max; | |
10174 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
10175 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
10176 | i = 0; | |
10177 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 10178 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
10179 | ++i; |
10180 | } | |
10181 | ||
10182 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
10183 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
10184 | Newz(54, PL_markstack, i, I32); | |
10185 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
10186 | - proto_perl->Tmarkstack); | |
10187 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
10188 | - proto_perl->Tmarkstack); | |
10189 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
10190 | PL_markstack_ptr - PL_markstack + 1, I32); | |
10191 | ||
10192 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
10193 | * NOTE: unlike the others! */ | |
10194 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
10195 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
10196 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
10197 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
10198 | ||
10199 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
10200 | * NOTE: unlike the others! */ | |
10201 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
10202 | PL_retstack_max = proto_perl->Tretstack_max; | |
10203 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
10204 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, I32); | |
10205 | ||
10206 | /* NOTE: si_dup() looks at PL_markstack */ | |
d2d73c3e | 10207 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
10208 | |
10209 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
10210 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
10211 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
10212 | |
10213 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
10214 | PL_stack_base = AvARRAY(PL_curstack); | |
10215 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
10216 | - proto_perl->Tstack_base); | |
10217 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
10218 | ||
10219 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
10220 | * NOTE: unlike the others! */ | |
10221 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
10222 | PL_savestack_max = proto_perl->Tsavestack_max; | |
10223 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
d2d73c3e | 10224 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
10225 | } |
10226 | else { | |
10227 | init_stacks(); | |
985e7056 | 10228 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
10229 | } |
10230 | ||
10231 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
10232 | PL_top_env = &PL_start_env; | |
10233 | ||
10234 | PL_op = proto_perl->Top; | |
10235 | ||
10236 | PL_Sv = Nullsv; | |
10237 | PL_Xpv = (XPV*)NULL; | |
10238 | PL_na = proto_perl->Tna; | |
10239 | ||
10240 | PL_statbuf = proto_perl->Tstatbuf; | |
10241 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
10242 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
10243 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
10244 | #ifdef HAS_TIMES |
10245 | PL_timesbuf = proto_perl->Ttimesbuf; | |
10246 | #endif | |
10247 | ||
10248 | PL_tainted = proto_perl->Ttainted; | |
10249 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
10250 | PL_rs = sv_dup_inc(proto_perl->Trs, param); |
10251 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
10252 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
10253 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 10254 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
10255 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
10256 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
10257 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
10258 | |
10259 | PL_restartop = proto_perl->Trestartop; | |
10260 | PL_in_eval = proto_perl->Tin_eval; | |
10261 | PL_delaymagic = proto_perl->Tdelaymagic; | |
10262 | PL_dirty = proto_perl->Tdirty; | |
10263 | PL_localizing = proto_perl->Tlocalizing; | |
10264 | ||
14dd3ad8 | 10265 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 10266 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 10267 | #endif |
d2d73c3e | 10268 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
1d7c1841 GS |
10269 | PL_av_fetch_sv = Nullsv; |
10270 | PL_hv_fetch_sv = Nullsv; | |
10271 | Zero(&PL_hv_fetch_ent_mh, 1, HE); /* XXX */ | |
10272 | PL_modcount = proto_perl->Tmodcount; | |
10273 | PL_lastgotoprobe = Nullop; | |
10274 | PL_dumpindent = proto_perl->Tdumpindent; | |
10275 | ||
10276 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
10277 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
10278 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
10279 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
10280 | PL_sortcxix = proto_perl->Tsortcxix; |
10281 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
10282 | PL_efloatsize = 0; /* reinits on demand */ | |
10283 | ||
10284 | /* regex stuff */ | |
10285 | ||
10286 | PL_screamfirst = NULL; | |
10287 | PL_screamnext = NULL; | |
10288 | PL_maxscream = -1; /* reinits on demand */ | |
10289 | PL_lastscream = Nullsv; | |
10290 | ||
10291 | PL_watchaddr = NULL; | |
10292 | PL_watchok = Nullch; | |
10293 | ||
10294 | PL_regdummy = proto_perl->Tregdummy; | |
10295 | PL_regcomp_parse = Nullch; | |
10296 | PL_regxend = Nullch; | |
10297 | PL_regcode = (regnode*)NULL; | |
10298 | PL_regnaughty = 0; | |
10299 | PL_regsawback = 0; | |
10300 | PL_regprecomp = Nullch; | |
10301 | PL_regnpar = 0; | |
10302 | PL_regsize = 0; | |
10303 | PL_regflags = 0; | |
10304 | PL_regseen = 0; | |
10305 | PL_seen_zerolen = 0; | |
10306 | PL_seen_evals = 0; | |
10307 | PL_regcomp_rx = (regexp*)NULL; | |
10308 | PL_extralen = 0; | |
10309 | PL_colorset = 0; /* reinits PL_colors[] */ | |
10310 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
10311 | PL_reg_whilem_seen = 0; | |
10312 | PL_reginput = Nullch; | |
10313 | PL_regbol = Nullch; | |
10314 | PL_regeol = Nullch; | |
10315 | PL_regstartp = (I32*)NULL; | |
10316 | PL_regendp = (I32*)NULL; | |
10317 | PL_reglastparen = (U32*)NULL; | |
10318 | PL_regtill = Nullch; | |
1d7c1841 GS |
10319 | PL_reg_start_tmp = (char**)NULL; |
10320 | PL_reg_start_tmpl = 0; | |
10321 | PL_regdata = (struct reg_data*)NULL; | |
10322 | PL_bostr = Nullch; | |
10323 | PL_reg_flags = 0; | |
10324 | PL_reg_eval_set = 0; | |
10325 | PL_regnarrate = 0; | |
10326 | PL_regprogram = (regnode*)NULL; | |
10327 | PL_regindent = 0; | |
10328 | PL_regcc = (CURCUR*)NULL; | |
10329 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
10330 | PL_reg_re = (regexp*)NULL; | |
10331 | PL_reg_ganch = Nullch; | |
10332 | PL_reg_sv = Nullsv; | |
53c4c00c | 10333 | PL_reg_match_utf8 = FALSE; |
1d7c1841 GS |
10334 | PL_reg_magic = (MAGIC*)NULL; |
10335 | PL_reg_oldpos = 0; | |
10336 | PL_reg_oldcurpm = (PMOP*)NULL; | |
10337 | PL_reg_curpm = (PMOP*)NULL; | |
10338 | PL_reg_oldsaved = Nullch; | |
10339 | PL_reg_oldsavedlen = 0; | |
10340 | PL_reg_maxiter = 0; | |
10341 | PL_reg_leftiter = 0; | |
10342 | PL_reg_poscache = Nullch; | |
10343 | PL_reg_poscache_size= 0; | |
10344 | ||
10345 | /* RE engine - function pointers */ | |
10346 | PL_regcompp = proto_perl->Tregcompp; | |
10347 | PL_regexecp = proto_perl->Tregexecp; | |
10348 | PL_regint_start = proto_perl->Tregint_start; | |
10349 | PL_regint_string = proto_perl->Tregint_string; | |
10350 | PL_regfree = proto_perl->Tregfree; | |
10351 | ||
10352 | PL_reginterp_cnt = 0; | |
10353 | PL_reg_starttry = 0; | |
10354 | ||
a2efc822 SC |
10355 | /* Pluggable optimizer */ |
10356 | PL_peepp = proto_perl->Tpeepp; | |
10357 | ||
a0739874 DM |
10358 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
10359 | ptr_table_free(PL_ptr_table); | |
10360 | PL_ptr_table = NULL; | |
10361 | } | |
8cf8f3d1 | 10362 | |
f284b03f AMS |
10363 | /* Call the ->CLONE method, if it exists, for each of the stashes |
10364 | identified by sv_dup() above. | |
10365 | */ | |
d2d73c3e AB |
10366 | while(av_len(param->stashes) != -1) { |
10367 | HV* stash = (HV*) av_shift(param->stashes); | |
f284b03f AMS |
10368 | GV* cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); |
10369 | if (cloner && GvCV(cloner)) { | |
10370 | dSP; | |
10371 | ENTER; | |
10372 | SAVETMPS; | |
10373 | PUSHMARK(SP); | |
dc507217 | 10374 | XPUSHs(sv_2mortal(newSVpv(HvNAME(stash), 0))); |
f284b03f AMS |
10375 | PUTBACK; |
10376 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
10377 | FREETMPS; | |
10378 | LEAVE; | |
10379 | } | |
4a09accc | 10380 | } |
a0739874 | 10381 | |
dc507217 DM |
10382 | SvREFCNT_dec(param->stashes); |
10383 | Safefree(param); | |
10384 | ||
1d7c1841 | 10385 | return my_perl; |
1d7c1841 GS |
10386 | } |
10387 | ||
1d7c1841 | 10388 | #endif /* USE_ITHREADS */ |
a0ae6670 | 10389 | |
9f4817db | 10390 | /* |
ccfc67b7 JH |
10391 | =head1 Unicode Support |
10392 | ||
9f4817db JH |
10393 | =for apidoc sv_recode_to_utf8 |
10394 | ||
5d170f3a JH |
10395 | The encoding is assumed to be an Encode object, on entry the PV |
10396 | of the sv is assumed to be octets in that encoding, and the sv | |
10397 | will be converted into Unicode (and UTF-8). | |
9f4817db | 10398 | |
5d170f3a JH |
10399 | If the sv already is UTF-8 (or if it is not POK), or if the encoding |
10400 | is not a reference, nothing is done to the sv. If the encoding is not | |
1768d7eb JH |
10401 | an C<Encode::XS> Encoding object, bad things will happen. |
10402 | (See F<lib/encoding.pm> and L<Encode>). | |
9f4817db | 10403 | |
5d170f3a | 10404 | The PV of the sv is returned. |
9f4817db | 10405 | |
5d170f3a JH |
10406 | =cut */ |
10407 | ||
10408 | char * | |
10409 | Perl_sv_recode_to_utf8(pTHX_ SV *sv, SV *encoding) | |
10410 | { | |
121910a4 | 10411 | if (SvPOK(sv) && !DO_UTF8(sv) && SvROK(encoding)) { |
5d170f3a JH |
10412 | SV *uni; |
10413 | STRLEN len; | |
10414 | char *s; | |
10415 | dSP; | |
10416 | ENTER; | |
10417 | SAVETMPS; | |
10418 | PUSHMARK(sp); | |
10419 | EXTEND(SP, 3); | |
10420 | XPUSHs(encoding); | |
10421 | XPUSHs(sv); | |
10422 | XPUSHs(&PL_sv_yes); | |
10423 | PUTBACK; | |
10424 | call_method("decode", G_SCALAR); | |
10425 | SPAGAIN; | |
10426 | uni = POPs; | |
10427 | PUTBACK; | |
3e169325 | 10428 | s = SvPV(uni, len); |
5d170f3a JH |
10429 | if (s != SvPVX(sv)) { |
10430 | SvGROW(sv, len); | |
10431 | Move(s, SvPVX(sv), len, char); | |
10432 | SvCUR_set(sv, len); | |
10433 | } | |
10434 | FREETMPS; | |
10435 | LEAVE; | |
10436 | SvUTF8_on(sv); | |
9f4817db | 10437 | } |
5d170f3a | 10438 | return SvPVX(sv); |
9f4817db JH |
10439 | } |
10440 |