Commit | Line | Data |
a0d0e21e |
1 | /* pp_hot.c |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
a0d0e21e |
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 | * |
8 | */ |
9 | |
10 | /* |
11 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, |
12 | * shaking the air. |
13 | * |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! |
15 | * Fire, Foes! Awake! |
16 | */ |
17 | |
18 | #include "EXTERN.h" |
19 | #include "perl.h" |
20 | |
8ac85365 |
21 | #ifdef I_UNISTD |
22 | #include <unistd.h> |
23 | #endif |
24 | |
a0d0e21e |
25 | /* Hot code. */ |
26 | |
11343788 |
27 | #ifdef USE_THREADS |
28 | static void |
8ac85365 |
29 | unset_cvowner(void *cvarg) |
11343788 |
30 | { |
31 | register CV* cv = (CV *) cvarg; |
32 | #ifdef DEBUGGING |
33 | dTHR; |
34 | #endif /* DEBUGGING */ |
35 | |
1fd28e87 |
36 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
37 | thr, cv, SvPEEK((SV*)cv)))); |
11343788 |
38 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
39 | DEBUG_L(if (CvDEPTH(cv) != 0) |
40 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
41 | CvDEPTH(cv));); |
11343788 |
42 | assert(thr == CvOWNER(cv)); |
43 | CvOWNER(cv) = 0; |
11343788 |
44 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
45 | SvREFCNT_dec(cv); |
46 | } |
11343788 |
47 | #endif /* USE_THREADS */ |
48 | |
a0d0e21e |
49 | PP(pp_const) |
50 | { |
4e35701f |
51 | djSP; |
a0d0e21e |
52 | XPUSHs(cSVOP->op_sv); |
53 | RETURN; |
54 | } |
55 | |
56 | PP(pp_nextstate) |
57 | { |
58 | curcop = (COP*)op; |
59 | TAINT_NOT; /* Each statement is presumed innocent */ |
60 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
61 | FREETMPS; |
62 | return NORMAL; |
63 | } |
64 | |
65 | PP(pp_gvsv) |
66 | { |
4e35701f |
67 | djSP; |
a0d0e21e |
68 | EXTEND(sp,1); |
69 | if (op->op_private & OPpLVAL_INTRO) |
70 | PUSHs(save_scalar(cGVOP->op_gv)); |
71 | else |
72 | PUSHs(GvSV(cGVOP->op_gv)); |
73 | RETURN; |
74 | } |
75 | |
76 | PP(pp_null) |
77 | { |
78 | return NORMAL; |
79 | } |
80 | |
81 | PP(pp_pushmark) |
82 | { |
83 | PUSHMARK(stack_sp); |
84 | return NORMAL; |
85 | } |
86 | |
87 | PP(pp_stringify) |
88 | { |
4e35701f |
89 | djSP; dTARGET; |
a0d0e21e |
90 | STRLEN len; |
91 | char *s; |
92 | s = SvPV(TOPs,len); |
93 | sv_setpvn(TARG,s,len); |
94 | SETTARG; |
95 | RETURN; |
96 | } |
97 | |
98 | PP(pp_gv) |
99 | { |
4e35701f |
100 | djSP; |
a0d0e21e |
101 | XPUSHs((SV*)cGVOP->op_gv); |
102 | RETURN; |
103 | } |
104 | |
105 | PP(pp_and) |
106 | { |
4e35701f |
107 | djSP; |
a0d0e21e |
108 | if (!SvTRUE(TOPs)) |
109 | RETURN; |
110 | else { |
111 | --SP; |
112 | RETURNOP(cLOGOP->op_other); |
113 | } |
114 | } |
115 | |
116 | PP(pp_sassign) |
117 | { |
4e35701f |
118 | djSP; dPOPTOPssrl; |
748a9306 |
119 | MAGIC *mg; |
120 | |
a0d0e21e |
121 | if (op->op_private & OPpASSIGN_BACKWARDS) { |
122 | SV *temp; |
123 | temp = left; left = right; right = temp; |
124 | } |
bbce6d69 |
125 | if (tainting && tainted && !SvTAINTED(left)) |
a0d0e21e |
126 | TAINT_NOT; |
54310121 |
127 | SvSetMagicSV(right, left); |
a0d0e21e |
128 | SETs(right); |
129 | RETURN; |
130 | } |
131 | |
132 | PP(pp_cond_expr) |
133 | { |
4e35701f |
134 | djSP; |
a0d0e21e |
135 | if (SvTRUEx(POPs)) |
136 | RETURNOP(cCONDOP->op_true); |
137 | else |
138 | RETURNOP(cCONDOP->op_false); |
139 | } |
140 | |
141 | PP(pp_unstack) |
142 | { |
143 | I32 oldsave; |
144 | TAINT_NOT; /* Each statement is presumed innocent */ |
145 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
146 | FREETMPS; |
147 | oldsave = scopestack[scopestack_ix - 1]; |
148 | LEAVE_SCOPE(oldsave); |
149 | return NORMAL; |
150 | } |
151 | |
a0d0e21e |
152 | PP(pp_concat) |
153 | { |
4e35701f |
154 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 |
155 | { |
156 | dPOPTOPssrl; |
a0d0e21e |
157 | STRLEN len; |
158 | char *s; |
159 | if (TARG != left) { |
160 | s = SvPV(left,len); |
161 | sv_setpvn(TARG,s,len); |
162 | } |
c07a80fd |
163 | else if (SvGMAGICAL(TARG)) |
164 | mg_get(TARG); |
7a4c00b4 |
165 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
166 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
167 | s = SvPV_force(TARG, len); |
4633a7c4 |
168 | } |
a0d0e21e |
169 | s = SvPV(right,len); |
68dc0745 |
170 | if (SvOK(TARG)) |
171 | sv_catpvn(TARG,s,len); |
172 | else |
173 | sv_setpvn(TARG,s,len); /* suppress warning */ |
a0d0e21e |
174 | SETTARG; |
175 | RETURN; |
748a9306 |
176 | } |
a0d0e21e |
177 | } |
178 | |
179 | PP(pp_padsv) |
180 | { |
4e35701f |
181 | djSP; dTARGET; |
a0d0e21e |
182 | XPUSHs(TARG); |
4633a7c4 |
183 | if (op->op_flags & OPf_MOD) { |
184 | if (op->op_private & OPpLVAL_INTRO) |
185 | SAVECLEARSV(curpad[op->op_targ]); |
5f05dabc |
186 | else if (op->op_private & OPpDEREF) |
54310121 |
187 | vivify_ref(curpad[op->op_targ], op->op_private & OPpDEREF); |
4633a7c4 |
188 | } |
a0d0e21e |
189 | RETURN; |
190 | } |
191 | |
192 | PP(pp_readline) |
193 | { |
194 | last_in_gv = (GV*)(*stack_sp--); |
195 | return do_readline(); |
196 | } |
197 | |
198 | PP(pp_eq) |
199 | { |
4e35701f |
200 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e |
201 | { |
202 | dPOPnv; |
54310121 |
203 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
204 | RETURN; |
205 | } |
206 | } |
207 | |
208 | PP(pp_preinc) |
209 | { |
4e35701f |
210 | djSP; |
68dc0745 |
211 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
44a8e56a |
212 | croak(no_modify); |
55497cff |
213 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
214 | SvIVX(TOPs) != IV_MAX) |
215 | { |
748a9306 |
216 | ++SvIVX(TOPs); |
55497cff |
217 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
218 | } |
219 | else |
220 | sv_inc(TOPs); |
a0d0e21e |
221 | SvSETMAGIC(TOPs); |
222 | return NORMAL; |
223 | } |
224 | |
225 | PP(pp_or) |
226 | { |
4e35701f |
227 | djSP; |
a0d0e21e |
228 | if (SvTRUE(TOPs)) |
229 | RETURN; |
230 | else { |
231 | --SP; |
232 | RETURNOP(cLOGOP->op_other); |
233 | } |
234 | } |
235 | |
236 | PP(pp_add) |
237 | { |
4e35701f |
238 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e |
239 | { |
7a4c00b4 |
240 | dPOPTOPnnrl_ul; |
a0d0e21e |
241 | SETn( left + right ); |
242 | RETURN; |
243 | } |
244 | } |
245 | |
246 | PP(pp_aelemfast) |
247 | { |
4e35701f |
248 | djSP; |
a0d0e21e |
249 | AV *av = GvAV((GV*)cSVOP->op_sv); |
250 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); |
251 | PUSHs(svp ? *svp : &sv_undef); |
252 | RETURN; |
253 | } |
254 | |
255 | PP(pp_join) |
256 | { |
4e35701f |
257 | djSP; dMARK; dTARGET; |
a0d0e21e |
258 | MARK++; |
259 | do_join(TARG, *MARK, MARK, SP); |
260 | SP = MARK; |
261 | SETs(TARG); |
262 | RETURN; |
263 | } |
264 | |
265 | PP(pp_pushre) |
266 | { |
4e35701f |
267 | djSP; |
44a8e56a |
268 | #ifdef DEBUGGING |
269 | /* |
270 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
271 | * will be enough to hold an OP*. |
272 | */ |
273 | SV* sv = sv_newmortal(); |
274 | sv_upgrade(sv, SVt_PVLV); |
275 | LvTYPE(sv) = '/'; |
276 | Copy(&op, &LvTARGOFF(sv), 1, OP*); |
277 | XPUSHs(sv); |
278 | #else |
a0d0e21e |
279 | XPUSHs((SV*)op); |
44a8e56a |
280 | #endif |
a0d0e21e |
281 | RETURN; |
282 | } |
283 | |
284 | /* Oversized hot code. */ |
285 | |
286 | PP(pp_print) |
287 | { |
4e35701f |
288 | djSP; dMARK; dORIGMARK; |
a0d0e21e |
289 | GV *gv; |
290 | IO *io; |
760ac839 |
291 | register PerlIO *fp; |
236988e4 |
292 | MAGIC *mg; |
a0d0e21e |
293 | |
294 | if (op->op_flags & OPf_STACKED) |
295 | gv = (GV*)*++MARK; |
296 | else |
297 | gv = defoutgv; |
236988e4 |
298 | if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
68dc0745 |
299 | if (MARK == ORIGMARK) { |
300 | EXTEND(SP, 1); |
301 | ++MARK; |
302 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
303 | ++SP; |
304 | } |
305 | PUSHMARK(MARK - 1); |
236988e4 |
306 | *MARK = mg->mg_obj; |
68dc0745 |
307 | PUTBACK; |
236988e4 |
308 | ENTER; |
309 | perl_call_method("PRINT", G_SCALAR); |
310 | LEAVE; |
311 | SPAGAIN; |
68dc0745 |
312 | MARK = ORIGMARK + 1; |
313 | *MARK = *SP; |
314 | SP = MARK; |
236988e4 |
315 | RETURN; |
316 | } |
a0d0e21e |
317 | if (!(io = GvIO(gv))) { |
748a9306 |
318 | if (dowarn) { |
319 | SV* sv = sv_newmortal(); |
4f732624 |
320 | gv_fullname3(sv, gv, Nullch); |
748a9306 |
321 | warn("Filehandle %s never opened", SvPV(sv,na)); |
322 | } |
323 | |
324 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
325 | goto just_say_no; |
326 | } |
327 | else if (!(fp = IoOFP(io))) { |
328 | if (dowarn) { |
748a9306 |
329 | SV* sv = sv_newmortal(); |
4f732624 |
330 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e |
331 | if (IoIFP(io)) |
748a9306 |
332 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e |
333 | else |
748a9306 |
334 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e |
335 | } |
748a9306 |
336 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
337 | goto just_say_no; |
338 | } |
339 | else { |
340 | MARK++; |
341 | if (ofslen) { |
342 | while (MARK <= SP) { |
343 | if (!do_print(*MARK, fp)) |
344 | break; |
345 | MARK++; |
346 | if (MARK <= SP) { |
760ac839 |
347 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
348 | MARK--; |
349 | break; |
350 | } |
351 | } |
352 | } |
353 | } |
354 | else { |
355 | while (MARK <= SP) { |
356 | if (!do_print(*MARK, fp)) |
357 | break; |
358 | MARK++; |
359 | } |
360 | } |
361 | if (MARK <= SP) |
362 | goto just_say_no; |
363 | else { |
364 | if (orslen) |
760ac839 |
365 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
366 | goto just_say_no; |
367 | |
368 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
369 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
370 | goto just_say_no; |
371 | } |
372 | } |
373 | SP = ORIGMARK; |
374 | PUSHs(&sv_yes); |
375 | RETURN; |
376 | |
377 | just_say_no: |
378 | SP = ORIGMARK; |
379 | PUSHs(&sv_undef); |
380 | RETURN; |
381 | } |
382 | |
383 | PP(pp_rv2av) |
384 | { |
4e35701f |
385 | djSP; dPOPss; |
a0d0e21e |
386 | AV *av; |
387 | |
388 | if (SvROK(sv)) { |
389 | wasref: |
390 | av = (AV*)SvRV(sv); |
391 | if (SvTYPE(av) != SVt_PVAV) |
392 | DIE("Not an ARRAY reference"); |
a0d0e21e |
393 | if (op->op_flags & OPf_REF) { |
394 | PUSHs((SV*)av); |
395 | RETURN; |
396 | } |
397 | } |
398 | else { |
399 | if (SvTYPE(sv) == SVt_PVAV) { |
400 | av = (AV*)sv; |
401 | if (op->op_flags & OPf_REF) { |
402 | PUSHs((SV*)av); |
403 | RETURN; |
404 | } |
405 | } |
406 | else { |
67955e0c |
407 | GV *gv; |
408 | |
a0d0e21e |
409 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
410 | char *sym; |
411 | |
a0d0e21e |
412 | if (SvGMAGICAL(sv)) { |
413 | mg_get(sv); |
414 | if (SvROK(sv)) |
415 | goto wasref; |
416 | } |
417 | if (!SvOK(sv)) { |
418 | if (op->op_flags & OPf_REF || |
419 | op->op_private & HINT_STRICT_REFS) |
420 | DIE(no_usym, "an ARRAY"); |
d83e6520 |
421 | if (dowarn) |
422 | warn(warn_uninit); |
4633a7c4 |
423 | if (GIMME == G_ARRAY) |
424 | RETURN; |
a0d0e21e |
425 | RETPUSHUNDEF; |
426 | } |
748a9306 |
427 | sym = SvPV(sv,na); |
a0d0e21e |
428 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
429 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c |
430 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
431 | } else { |
432 | gv = (GV*)sv; |
a0d0e21e |
433 | } |
67955e0c |
434 | av = GvAVn(gv); |
a0d0e21e |
435 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
436 | av = save_ary(gv); |
a0d0e21e |
437 | if (op->op_flags & OPf_REF) { |
438 | PUSHs((SV*)av); |
439 | RETURN; |
440 | } |
441 | } |
442 | } |
443 | |
444 | if (GIMME == G_ARRAY) { |
445 | I32 maxarg = AvFILL(av) + 1; |
446 | EXTEND(SP, maxarg); |
447 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
448 | SP += maxarg; |
449 | } |
450 | else { |
451 | dTARGET; |
452 | I32 maxarg = AvFILL(av) + 1; |
453 | PUSHi(maxarg); |
454 | } |
455 | RETURN; |
456 | } |
457 | |
458 | PP(pp_rv2hv) |
459 | { |
4e35701f |
460 | djSP; dTOPss; |
a0d0e21e |
461 | HV *hv; |
462 | |
463 | if (SvROK(sv)) { |
464 | wasref: |
465 | hv = (HV*)SvRV(sv); |
c750a3ec |
466 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e |
467 | DIE("Not a HASH reference"); |
a0d0e21e |
468 | if (op->op_flags & OPf_REF) { |
469 | SETs((SV*)hv); |
470 | RETURN; |
471 | } |
472 | } |
473 | else { |
c750a3ec |
474 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
475 | hv = (HV*)sv; |
476 | if (op->op_flags & OPf_REF) { |
477 | SETs((SV*)hv); |
478 | RETURN; |
479 | } |
480 | } |
481 | else { |
67955e0c |
482 | GV *gv; |
483 | |
a0d0e21e |
484 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
485 | char *sym; |
486 | |
a0d0e21e |
487 | if (SvGMAGICAL(sv)) { |
488 | mg_get(sv); |
489 | if (SvROK(sv)) |
490 | goto wasref; |
491 | } |
492 | if (!SvOK(sv)) { |
493 | if (op->op_flags & OPf_REF || |
494 | op->op_private & HINT_STRICT_REFS) |
495 | DIE(no_usym, "a HASH"); |
d83e6520 |
496 | if (dowarn) |
497 | warn(warn_uninit); |
4633a7c4 |
498 | if (GIMME == G_ARRAY) { |
499 | SP--; |
500 | RETURN; |
501 | } |
a0d0e21e |
502 | RETSETUNDEF; |
503 | } |
748a9306 |
504 | sym = SvPV(sv,na); |
a0d0e21e |
505 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
506 | DIE(no_symref, sym, "a HASH"); |
67955e0c |
507 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
508 | } else { |
509 | gv = (GV*)sv; |
a0d0e21e |
510 | } |
67955e0c |
511 | hv = GvHVn(gv); |
a0d0e21e |
512 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
513 | hv = save_hash(gv); |
a0d0e21e |
514 | if (op->op_flags & OPf_REF) { |
515 | SETs((SV*)hv); |
516 | RETURN; |
517 | } |
518 | } |
519 | } |
520 | |
521 | if (GIMME == G_ARRAY) { /* array wanted */ |
522 | *stack_sp = (SV*)hv; |
523 | return do_kv(ARGS); |
524 | } |
525 | else { |
526 | dTARGET; |
c750a3ec |
527 | /* This bit is OK even when hv is really an AV */ |
46fc3d4c |
528 | if (HvFILL(hv)) |
529 | sv_setpvf(TARG, "%ld/%ld", |
530 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); |
a0d0e21e |
531 | else |
532 | sv_setiv(TARG, 0); |
c750a3ec |
533 | |
a0d0e21e |
534 | SETTARG; |
535 | RETURN; |
536 | } |
537 | } |
538 | |
539 | PP(pp_aassign) |
540 | { |
4e35701f |
541 | djSP; |
a0d0e21e |
542 | SV **lastlelem = stack_sp; |
543 | SV **lastrelem = stack_base + POPMARK; |
544 | SV **firstrelem = stack_base + POPMARK + 1; |
545 | SV **firstlelem = lastrelem + 1; |
546 | |
547 | register SV **relem; |
548 | register SV **lelem; |
549 | |
550 | register SV *sv; |
551 | register AV *ary; |
552 | |
54310121 |
553 | I32 gimme; |
a0d0e21e |
554 | HV *hash; |
555 | I32 i; |
556 | int magic; |
557 | |
558 | delaymagic = DM_DELAY; /* catch simultaneous items */ |
559 | |
560 | /* If there's a common identifier on both sides we have to take |
561 | * special care that assigning the identifier on the left doesn't |
562 | * clobber a value on the right that's used later in the list. |
563 | */ |
564 | if (op->op_private & OPpASSIGN_COMMON) { |
565 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
566 | /*SUPPRESS 560*/ |
a1f49e72 |
567 | if (sv = *relem) { |
568 | TAINT_NOT; /* Each item is independent */ |
a0d0e21e |
569 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
570 | } |
a0d0e21e |
571 | } |
572 | } |
573 | |
574 | relem = firstrelem; |
575 | lelem = firstlelem; |
576 | ary = Null(AV*); |
577 | hash = Null(HV*); |
578 | while (lelem <= lastlelem) { |
bbce6d69 |
579 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
580 | sv = *lelem++; |
581 | switch (SvTYPE(sv)) { |
582 | case SVt_PVAV: |
583 | ary = (AV*)sv; |
748a9306 |
584 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
585 | |
586 | av_clear(ary); |
7e42bd57 |
587 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
588 | i = 0; |
589 | while (relem <= lastrelem) { /* gobble up all the rest */ |
5117ca91 |
590 | SV **didstore; |
a0d0e21e |
591 | sv = NEWSV(28,0); |
592 | assert(*relem); |
593 | sv_setsv(sv,*relem); |
594 | *(relem++) = sv; |
5117ca91 |
595 | didstore = av_store(ary,i++,sv); |
596 | if (magic) { |
fb73857a |
597 | if (SvSMAGICAL(sv)) |
598 | mg_set(sv); |
5117ca91 |
599 | if (!didstore) |
600 | SvREFCNT_dec(sv); |
601 | } |
bbce6d69 |
602 | TAINT_NOT; |
a0d0e21e |
603 | } |
604 | break; |
605 | case SVt_PVHV: { |
a0d0e21e |
606 | SV *tmpstr; |
607 | |
608 | hash = (HV*)sv; |
748a9306 |
609 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
610 | hv_clear(hash); |
611 | |
612 | while (relem < lastrelem) { /* gobble up all the rest */ |
613 | STRLEN len; |
5117ca91 |
614 | HE *didstore; |
4633a7c4 |
615 | if (*relem) |
a0d0e21e |
616 | sv = *(relem++); |
4633a7c4 |
617 | else |
a0d0e21e |
618 | sv = &sv_no, relem++; |
a0d0e21e |
619 | tmpstr = NEWSV(29,0); |
620 | if (*relem) |
621 | sv_setsv(tmpstr,*relem); /* value */ |
622 | *(relem++) = tmpstr; |
5117ca91 |
623 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
624 | if (magic) { |
fb73857a |
625 | if (SvSMAGICAL(tmpstr)) |
626 | mg_set(tmpstr); |
5117ca91 |
627 | if (!didstore) |
628 | SvREFCNT_dec(tmpstr); |
629 | } |
bbce6d69 |
630 | TAINT_NOT; |
8e07c86e |
631 | } |
fb73857a |
632 | if (relem == lastrelem && dowarn) |
760ac839 |
633 | warn("Odd number of elements in hash list"); |
a0d0e21e |
634 | } |
635 | break; |
636 | default: |
637 | if (SvTHINKFIRST(sv)) { |
638 | if (SvREADONLY(sv) && curcop != &compiling) { |
639 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) |
640 | DIE(no_modify); |
641 | if (relem <= lastrelem) |
642 | relem++; |
643 | break; |
644 | } |
645 | if (SvROK(sv)) |
646 | sv_unref(sv); |
647 | } |
648 | if (relem <= lastrelem) { |
649 | sv_setsv(sv, *relem); |
650 | *(relem++) = sv; |
651 | } |
652 | else |
653 | sv_setsv(sv, &sv_undef); |
654 | SvSETMAGIC(sv); |
655 | break; |
656 | } |
657 | } |
658 | if (delaymagic & ~DM_DELAY) { |
659 | if (delaymagic & DM_UID) { |
660 | #ifdef HAS_SETRESUID |
661 | (void)setresuid(uid,euid,(Uid_t)-1); |
56febc5e |
662 | #else |
663 | # ifdef HAS_SETREUID |
a0d0e21e |
664 | (void)setreuid(uid,euid); |
56febc5e |
665 | # else |
666 | # ifdef HAS_SETRUID |
a0d0e21e |
667 | if ((delaymagic & DM_UID) == DM_RUID) { |
668 | (void)setruid(uid); |
748a9306 |
669 | delaymagic &= ~DM_RUID; |
a0d0e21e |
670 | } |
56febc5e |
671 | # endif /* HAS_SETRUID */ |
672 | # ifdef HAS_SETEUID |
a0d0e21e |
673 | if ((delaymagic & DM_UID) == DM_EUID) { |
674 | (void)seteuid(uid); |
748a9306 |
675 | delaymagic &= ~DM_EUID; |
a0d0e21e |
676 | } |
56febc5e |
677 | # endif /* HAS_SETEUID */ |
a0d0e21e |
678 | if (delaymagic & DM_UID) { |
679 | if (uid != euid) |
680 | DIE("No setreuid available"); |
681 | (void)setuid(uid); |
682 | } |
56febc5e |
683 | # endif /* HAS_SETREUID */ |
684 | #endif /* HAS_SETRESUID */ |
a0d0e21e |
685 | uid = (int)getuid(); |
686 | euid = (int)geteuid(); |
687 | } |
688 | if (delaymagic & DM_GID) { |
689 | #ifdef HAS_SETRESGID |
690 | (void)setresgid(gid,egid,(Gid_t)-1); |
56febc5e |
691 | #else |
692 | # ifdef HAS_SETREGID |
a0d0e21e |
693 | (void)setregid(gid,egid); |
56febc5e |
694 | # else |
695 | # ifdef HAS_SETRGID |
a0d0e21e |
696 | if ((delaymagic & DM_GID) == DM_RGID) { |
697 | (void)setrgid(gid); |
748a9306 |
698 | delaymagic &= ~DM_RGID; |
a0d0e21e |
699 | } |
56febc5e |
700 | # endif /* HAS_SETRGID */ |
701 | # ifdef HAS_SETEGID |
a0d0e21e |
702 | if ((delaymagic & DM_GID) == DM_EGID) { |
703 | (void)setegid(gid); |
748a9306 |
704 | delaymagic &= ~DM_EGID; |
a0d0e21e |
705 | } |
56febc5e |
706 | # endif /* HAS_SETEGID */ |
a0d0e21e |
707 | if (delaymagic & DM_GID) { |
708 | if (gid != egid) |
709 | DIE("No setregid available"); |
710 | (void)setgid(gid); |
711 | } |
56febc5e |
712 | # endif /* HAS_SETREGID */ |
713 | #endif /* HAS_SETRESGID */ |
a0d0e21e |
714 | gid = (int)getgid(); |
715 | egid = (int)getegid(); |
716 | } |
4633a7c4 |
717 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e |
718 | } |
719 | delaymagic = 0; |
54310121 |
720 | |
721 | gimme = GIMME_V; |
722 | if (gimme == G_VOID) |
723 | SP = firstrelem - 1; |
724 | else if (gimme == G_SCALAR) { |
725 | dTARGET; |
726 | SP = firstrelem; |
727 | SETi(lastrelem - firstrelem + 1); |
728 | } |
729 | else { |
a0d0e21e |
730 | if (ary || hash) |
731 | SP = lastrelem; |
732 | else |
733 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
734 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
735 | while (relem <= SP) |
0c8c7a05 |
736 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef; |
a0d0e21e |
737 | } |
54310121 |
738 | RETURN; |
a0d0e21e |
739 | } |
740 | |
741 | PP(pp_match) |
742 | { |
4e35701f |
743 | djSP; dTARG; |
a0d0e21e |
744 | register PMOP *pm = cPMOP; |
745 | register char *t; |
746 | register char *s; |
747 | char *strend; |
748 | I32 global; |
749 | I32 safebase; |
750 | char *truebase; |
751 | register REGEXP *rx = pm->op_pmregexp; |
752 | I32 gimme = GIMME; |
753 | STRLEN len; |
748a9306 |
754 | I32 minmatch = 0; |
4633a7c4 |
755 | I32 oldsave = savestack_ix; |
f86702cc |
756 | I32 update_minmatch = 1; |
a0d0e21e |
757 | |
758 | if (op->op_flags & OPf_STACKED) |
759 | TARG = POPs; |
760 | else { |
761 | TARG = GvSV(defgv); |
762 | EXTEND(SP,1); |
763 | } |
764 | s = SvPV(TARG, len); |
765 | strend = s + len; |
766 | if (!s) |
767 | DIE("panic: do_match"); |
9212bbba |
768 | TAINT_NOT; |
a0d0e21e |
769 | |
770 | if (pm->op_pmflags & PMf_USED) { |
771 | if (gimme == G_ARRAY) |
772 | RETURN; |
773 | RETPUSHNO; |
774 | } |
775 | |
776 | if (!rx->prelen && curpm) { |
777 | pm = curpm; |
778 | rx = pm->op_pmregexp; |
779 | } |
780 | truebase = t = s; |
781 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
782 | rx->startp[0] = 0; |
783 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
784 | MAGIC* mg = mg_find(TARG, 'g'); |
748a9306 |
785 | if (mg && mg->mg_len >= 0) { |
a0d0e21e |
786 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
787 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
788 | update_minmatch = 0; |
748a9306 |
789 | } |
a0d0e21e |
790 | } |
791 | } |
748a9306 |
792 | if (!rx->nparens && !global) |
793 | gimme = G_SCALAR; /* accidental array context? */ |
137443ea |
794 | safebase = (((gimme == G_ARRAY) || global || !rx->nparens) |
795 | && !sawampersand); |
a0d0e21e |
796 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
797 | SAVEINT(multiline); |
798 | multiline = pm->op_pmflags & PMf_MULTILINE; |
799 | } |
800 | |
801 | play_it_again: |
802 | if (global && rx->startp[0]) { |
803 | t = s = rx->endp[0]; |
51aa1f50 |
804 | if ((s + rx->minlen) > strend) |
a0d0e21e |
805 | goto nope; |
f86702cc |
806 | if (update_minmatch++) |
807 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
808 | } |
809 | if (pm->op_pmshort) { |
810 | if (pm->op_pmflags & PMf_SCANFIRST) { |
811 | if (SvSCREAM(TARG)) { |
812 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
813 | goto nope; |
814 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
815 | goto nope; |
816 | else if (pm->op_pmflags & PMf_ALL) |
817 | goto yup; |
818 | } |
819 | else if (!(s = fbm_instr((unsigned char*)s, |
820 | (unsigned char*)strend, pm->op_pmshort))) |
821 | goto nope; |
822 | else if (pm->op_pmflags & PMf_ALL) |
823 | goto yup; |
824 | if (s && rx->regback >= 0) { |
825 | ++BmUSEFUL(pm->op_pmshort); |
826 | s -= rx->regback; |
827 | if (s < t) |
828 | s = t; |
829 | } |
830 | else |
831 | s = t; |
832 | } |
833 | else if (!multiline) { |
bbce6d69 |
834 | if (*SvPVX(pm->op_pmshort) != *s |
835 | || (pm->op_pmslen > 1 |
36477c24 |
836 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
837 | goto nope; |
a0d0e21e |
838 | } |
839 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
840 | SvREFCNT_dec(pm->op_pmshort); |
841 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
842 | } |
843 | } |
e50aee73 |
844 | if (pregexec(rx, s, strend, truebase, minmatch, |
bbce6d69 |
845 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) |
846 | { |
a0d0e21e |
847 | curpm = pm; |
848 | if (pm->op_pmflags & PMf_ONCE) |
849 | pm->op_pmflags |= PMf_USED; |
850 | goto gotcha; |
851 | } |
852 | else |
853 | goto ret_no; |
854 | /*NOTREACHED*/ |
855 | |
856 | gotcha: |
9212bbba |
857 | TAINT_IF(rx->exec_tainted); |
a0d0e21e |
858 | if (gimme == G_ARRAY) { |
859 | I32 iters, i, len; |
860 | |
861 | iters = rx->nparens; |
862 | if (global && !iters) |
863 | i = 1; |
864 | else |
865 | i = 0; |
866 | EXTEND(SP, iters + i); |
bbce6d69 |
867 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
868 | for (i = !i; i <= iters; i++) { |
869 | PUSHs(sv_newmortal()); |
870 | /*SUPPRESS 560*/ |
871 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
872 | len = rx->endp[i] - s; |
873 | sv_setpvn(*SP, s, len); |
874 | } |
875 | } |
876 | if (global) { |
877 | truebase = rx->subbeg; |
5f05dabc |
878 | strend = rx->subend; |
a0d0e21e |
879 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
880 | ++rx->endp[0]; |
881 | goto play_it_again; |
882 | } |
4633a7c4 |
883 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
884 | RETURN; |
885 | } |
886 | else { |
887 | if (global) { |
888 | MAGIC* mg = 0; |
889 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
890 | mg = mg_find(TARG, 'g'); |
891 | if (!mg) { |
892 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
893 | mg = mg_find(TARG, 'g'); |
894 | } |
748a9306 |
895 | if (rx->startp[0]) { |
5f05dabc |
896 | mg->mg_len = rx->endp[0] - rx->subbeg; |
748a9306 |
897 | if (rx->startp[0] == rx->endp[0]) |
898 | mg->mg_flags |= MGf_MINMATCH; |
899 | else |
900 | mg->mg_flags &= ~MGf_MINMATCH; |
901 | } |
a0d0e21e |
902 | } |
4633a7c4 |
903 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
904 | RETPUSHYES; |
905 | } |
906 | |
907 | yup: |
9212bbba |
908 | TAINT_IF(rx->exec_tainted); |
a0d0e21e |
909 | ++BmUSEFUL(pm->op_pmshort); |
910 | curpm = pm; |
911 | if (pm->op_pmflags & PMf_ONCE) |
912 | pm->op_pmflags |= PMf_USED; |
5f05dabc |
913 | Safefree(rx->subbase); |
914 | rx->subbase = Nullch; |
a0d0e21e |
915 | if (global) { |
916 | rx->subbeg = truebase; |
917 | rx->subend = strend; |
918 | rx->startp[0] = s; |
919 | rx->endp[0] = s + SvCUR(pm->op_pmshort); |
920 | goto gotcha; |
921 | } |
922 | if (sawampersand) { |
923 | char *tmps; |
924 | |
a0d0e21e |
925 | tmps = rx->subbase = savepvn(t, strend-t); |
926 | rx->subbeg = tmps; |
927 | rx->subend = tmps + (strend-t); |
928 | tmps = rx->startp[0] = tmps + (s - t); |
929 | rx->endp[0] = tmps + SvCUR(pm->op_pmshort); |
930 | } |
4633a7c4 |
931 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
932 | RETPUSHYES; |
933 | |
934 | nope: |
935 | if (pm->op_pmshort) |
936 | ++BmUSEFUL(pm->op_pmshort); |
937 | |
938 | ret_no: |
c90c0ff4 |
939 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e |
940 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
941 | MAGIC* mg = mg_find(TARG, 'g'); |
942 | if (mg) |
943 | mg->mg_len = -1; |
944 | } |
945 | } |
4633a7c4 |
946 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
947 | if (gimme == G_ARRAY) |
948 | RETURN; |
949 | RETPUSHNO; |
950 | } |
951 | |
952 | OP * |
8ac85365 |
953 | do_readline(void) |
a0d0e21e |
954 | { |
955 | dSP; dTARGETSTACKED; |
956 | register SV *sv; |
957 | STRLEN tmplen = 0; |
958 | STRLEN offset; |
760ac839 |
959 | PerlIO *fp; |
a0d0e21e |
960 | register IO *io = GvIO(last_in_gv); |
961 | register I32 type = op->op_type; |
54310121 |
962 | I32 gimme = GIMME_V; |
e79b0511 |
963 | MAGIC *mg; |
a0d0e21e |
964 | |
e79b0511 |
965 | if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
966 | PUSHMARK(SP); |
967 | XPUSHs(mg->mg_obj); |
968 | PUTBACK; |
969 | ENTER; |
54310121 |
970 | perl_call_method("READLINE", gimme); |
e79b0511 |
971 | LEAVE; |
972 | SPAGAIN; |
54310121 |
973 | if (gimme == G_SCALAR) |
974 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
975 | RETURN; |
976 | } |
a0d0e21e |
977 | fp = Nullfp; |
978 | if (io) { |
979 | fp = IoIFP(io); |
980 | if (!fp) { |
981 | if (IoFLAGS(io) & IOf_ARGV) { |
982 | if (IoFLAGS(io) & IOf_START) { |
983 | IoFLAGS(io) &= ~IOf_START; |
984 | IoLINES(io) = 0; |
985 | if (av_len(GvAVn(last_in_gv)) < 0) { |
986 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ |
987 | av_push(GvAVn(last_in_gv), tmpstr); |
988 | } |
989 | } |
990 | fp = nextargv(last_in_gv); |
991 | if (!fp) { /* Note: fp != IoIFP(io) */ |
992 | (void)do_close(last_in_gv, FALSE); /* now it does*/ |
993 | IoFLAGS(io) |= IOf_START; |
994 | } |
995 | } |
996 | else if (type == OP_GLOB) { |
997 | SV *tmpcmd = NEWSV(55, 0); |
998 | SV *tmpglob = POPs; |
999 | ENTER; |
1000 | SAVEFREESV(tmpcmd); |
1001 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1002 | /* since spawning off a process is a real performance hit */ |
1003 | { |
1004 | #include <descrip.h> |
1005 | #include <lib$routines.h> |
1006 | #include <nam.h> |
1007 | #include <rmsdef.h> |
1008 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1009 | char vmsspec[NAM$C_MAXRSS+1]; |
1010 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1011 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1012 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1013 | PerlIO *tmpfp; |
a0d0e21e |
1014 | STRLEN i; |
1015 | struct dsc$descriptor_s wilddsc |
1016 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1017 | struct dsc$descriptor_vs rsdsc |
1018 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1019 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1020 | |
1021 | /* We could find out if there's an explicit dev/dir or version |
1022 | by peeking into lib$find_file's internal context at |
1023 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1024 | but that's unsupported, so I don't want to do it now and |
1025 | have it bite someone in the future. */ |
1026 | strcat(tmpfnam,tmpnam(NULL)); |
1027 | cp = SvPV(tmpglob,i); |
1028 | for (; i; i--) { |
1029 | if (cp[i] == ';') hasver = 1; |
1030 | if (cp[i] == '.') { |
1031 | if (sts) hasver = 1; |
1032 | else sts = 1; |
1033 | } |
1034 | if (cp[i] == '/') { |
1035 | hasdir = isunix = 1; |
1036 | break; |
748a9306 |
1037 | } |
a0d0e21e |
1038 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1039 | hasdir = 1; |
1040 | break; |
1041 | } |
1042 | } |
760ac839 |
1043 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
a0d0e21e |
1044 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
1045 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1046 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1047 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1048 | end = rstr + (unsigned long int) *rslt; |
1049 | if (!hasver) while (*end != ';') end--; |
1050 | *(end++) = '\n'; *end = '\0'; |
1051 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1052 | if (hasdir) { |
f86702cc |
1053 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1054 | begin = rstr; |
1055 | } |
1056 | else { |
1057 | begin = end; |
1058 | while (*(--begin) != ']' && *begin != '>') ; |
1059 | ++begin; |
1060 | } |
760ac839 |
1061 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1062 | } |
1063 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1064 | if (ok && sts != RMS$_NMF && |
1065 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1066 | if (!ok) { |
c07a80fd |
1067 | if (!(sts & 1)) { |
1068 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1069 | } |
760ac839 |
1070 | PerlIO_close(tmpfp); |
a0d0e21e |
1071 | fp = NULL; |
1072 | } |
1073 | else { |
760ac839 |
1074 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1075 | IoTYPE(io) = '<'; |
1076 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1077 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1078 | } |
1079 | } |
1080 | } |
1081 | #else /* !VMS */ |
1082 | #ifdef DOSISH |
67955e0c |
1083 | #ifdef OS2 |
1084 | sv_setpv(tmpcmd, "for a in "); |
1085 | sv_catsv(tmpcmd, tmpglob); |
1086 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1087 | #else |
a0d0e21e |
1088 | sv_setpv(tmpcmd, "perlglob "); |
1089 | sv_catsv(tmpcmd, tmpglob); |
1090 | sv_catpv(tmpcmd, " |"); |
67955e0c |
1091 | #endif /* !OS2 */ |
1092 | #else /* !DOSISH */ |
1093 | #if defined(CSH) |
a0d0e21e |
1094 | sv_setpvn(tmpcmd, cshname, cshlen); |
1095 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1096 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1097 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1098 | #else |
1099 | sv_setpv(tmpcmd, "echo "); |
1100 | sv_catsv(tmpcmd, tmpglob); |
1101 | #if 'z' - 'a' == 25 |
1102 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1103 | #else |
1104 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1105 | #endif |
1106 | #endif /* !CSH */ |
67955e0c |
1107 | #endif /* !DOSISH */ |
c07a80fd |
1108 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1109 | FALSE, 0, 0, Nullfp); |
a0d0e21e |
1110 | fp = IoIFP(io); |
1111 | #endif /* !VMS */ |
1112 | LEAVE; |
1113 | } |
1114 | } |
1115 | else if (type == OP_GLOB) |
1116 | SP--; |
1117 | } |
1118 | if (!fp) { |
4633a7c4 |
1119 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e |
1120 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
54310121 |
1121 | if (gimme == G_SCALAR) { |
a0d0e21e |
1122 | (void)SvOK_off(TARG); |
1123 | PUSHTARG; |
1124 | } |
1125 | RETURN; |
1126 | } |
54310121 |
1127 | if (gimme == G_SCALAR) { |
a0d0e21e |
1128 | sv = TARG; |
9607fc9c |
1129 | if (SvROK(sv)) |
1130 | sv_unref(sv); |
a0d0e21e |
1131 | (void)SvUPGRADE(sv, SVt_PV); |
1132 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1133 | if (!tmplen) |
1134 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1135 | if (type == OP_RCATLINE) |
1136 | offset = SvCUR(sv); |
1137 | else |
1138 | offset = 0; |
1139 | } |
54310121 |
1140 | else { |
1141 | sv = sv_2mortal(NEWSV(57, 80)); |
1142 | offset = 0; |
1143 | } |
a0d0e21e |
1144 | for (;;) { |
1145 | if (!sv_gets(sv, fp, offset)) { |
760ac839 |
1146 | PerlIO_clearerr(fp); |
a0d0e21e |
1147 | if (IoFLAGS(io) & IOf_ARGV) { |
1148 | fp = nextargv(last_in_gv); |
1149 | if (fp) |
1150 | continue; |
1151 | (void)do_close(last_in_gv, FALSE); |
1152 | IoFLAGS(io) |= IOf_START; |
1153 | } |
1154 | else if (type == OP_GLOB) { |
5cd24f17 |
1155 | if (do_close(last_in_gv, FALSE) & ~0xFF) |
1156 | warn("internal error: glob failed"); |
a0d0e21e |
1157 | } |
54310121 |
1158 | if (gimme == G_SCALAR) { |
a0d0e21e |
1159 | (void)SvOK_off(TARG); |
1160 | PUSHTARG; |
1161 | } |
1162 | RETURN; |
1163 | } |
bbce6d69 |
1164 | /* This should not be marked tainted if the fp is marked clean */ |
1165 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1166 | TAINT; |
1167 | SvTAINTED_on(sv); |
1168 | } |
a0d0e21e |
1169 | IoLINES(io)++; |
71be2cbc |
1170 | SvSETMAGIC(sv); |
a0d0e21e |
1171 | XPUSHs(sv); |
a0d0e21e |
1172 | if (type == OP_GLOB) { |
1173 | char *tmps; |
1174 | |
c07a80fd |
1175 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1176 | tmps = SvEND(sv) - 1; |
1177 | if (*tmps == *SvPVX(rs)) { |
1178 | *tmps = '\0'; |
1179 | SvCUR(sv)--; |
1180 | } |
1181 | } |
a0d0e21e |
1182 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1183 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1184 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1185 | break; |
1186 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { |
1187 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1188 | continue; |
1189 | } |
1190 | } |
54310121 |
1191 | if (gimme == G_ARRAY) { |
a0d0e21e |
1192 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1193 | SvLEN_set(sv, SvCUR(sv)+1); |
1194 | Renew(SvPVX(sv), SvLEN(sv), char); |
1195 | } |
1196 | sv = sv_2mortal(NEWSV(58, 80)); |
1197 | continue; |
1198 | } |
54310121 |
1199 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1200 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1201 | if (SvCUR(sv) < 60) |
1202 | SvLEN_set(sv, 80); |
1203 | else |
1204 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1205 | Renew(SvPVX(sv), SvLEN(sv), char); |
1206 | } |
1207 | RETURN; |
1208 | } |
1209 | } |
1210 | |
1211 | PP(pp_enter) |
1212 | { |
4e35701f |
1213 | djSP; |
c09156bb |
1214 | register PERL_CONTEXT *cx; |
54310121 |
1215 | I32 gimme = OP_GIMME(op, -1); |
a0d0e21e |
1216 | |
54310121 |
1217 | if (gimme == -1) { |
1218 | if (cxstack_ix >= 0) |
1219 | gimme = cxstack[cxstack_ix].blk_gimme; |
1220 | else |
1221 | gimme = G_SCALAR; |
1222 | } |
a0d0e21e |
1223 | |
1224 | ENTER; |
1225 | |
1226 | SAVETMPS; |
1227 | PUSHBLOCK(cx, CXt_BLOCK, sp); |
1228 | |
1229 | RETURN; |
1230 | } |
1231 | |
1232 | PP(pp_helem) |
1233 | { |
4e35701f |
1234 | djSP; |
760ac839 |
1235 | HE* he; |
ae77835f |
1236 | SV **svp; |
a0d0e21e |
1237 | SV *keysv = POPs; |
a0d0e21e |
1238 | HV *hv = (HV*)POPs; |
68dc0745 |
1239 | U32 lval = op->op_flags & OPf_MOD; |
1240 | U32 defer = op->op_private & OPpLVAL_DEFER; |
a0d0e21e |
1241 | |
ae77835f |
1242 | if (SvTYPE(hv) == SVt_PVHV) { |
1243 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
97fcbf96 |
1244 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1245 | } |
1246 | else if (SvTYPE(hv) == SVt_PVAV) { |
97fcbf96 |
1247 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f |
1248 | } |
c750a3ec |
1249 | else { |
a0d0e21e |
1250 | RETPUSHUNDEF; |
c750a3ec |
1251 | } |
a0d0e21e |
1252 | if (lval) { |
97fcbf96 |
1253 | if (!svp || *svp == &sv_undef) { |
68dc0745 |
1254 | SV* lv; |
1255 | SV* key2; |
1256 | if (!defer) |
1257 | DIE(no_helem, SvPV(keysv, na)); |
1258 | lv = sv_newmortal(); |
1259 | sv_upgrade(lv, SVt_PVLV); |
1260 | LvTYPE(lv) = 'y'; |
1261 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1262 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1263 | LvTARG(lv) = SvREFCNT_inc(hv); |
1264 | LvTARGLEN(lv) = 1; |
1265 | PUSHs(lv); |
1266 | RETURN; |
1267 | } |
5f05dabc |
1268 | if (op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1269 | if (HvNAME(hv) && isGV(*svp)) |
1270 | save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1271 | else |
ae77835f |
1272 | save_svref(svp); |
5f05dabc |
1273 | } |
1274 | else if (op->op_private & OPpDEREF) |
ae77835f |
1275 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e |
1276 | } |
1277 | PUSHs(svp ? *svp : &sv_undef); |
1278 | RETURN; |
1279 | } |
1280 | |
1281 | PP(pp_leave) |
1282 | { |
4e35701f |
1283 | djSP; |
c09156bb |
1284 | register PERL_CONTEXT *cx; |
a0d0e21e |
1285 | register SV **mark; |
1286 | SV **newsp; |
1287 | PMOP *newpm; |
1288 | I32 gimme; |
1289 | |
1290 | if (op->op_flags & OPf_SPECIAL) { |
1291 | cx = &cxstack[cxstack_ix]; |
1292 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ |
1293 | } |
1294 | |
1295 | POPBLOCK(cx,newpm); |
1296 | |
54310121 |
1297 | gimme = OP_GIMME(op, -1); |
1298 | if (gimme == -1) { |
1299 | if (cxstack_ix >= 0) |
1300 | gimme = cxstack[cxstack_ix].blk_gimme; |
1301 | else |
1302 | gimme = G_SCALAR; |
1303 | } |
a0d0e21e |
1304 | |
a1f49e72 |
1305 | TAINT_NOT; |
54310121 |
1306 | if (gimme == G_VOID) |
1307 | SP = newsp; |
1308 | else if (gimme == G_SCALAR) { |
1309 | MARK = newsp + 1; |
1310 | if (MARK <= SP) |
1311 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1312 | *MARK = TOPs; |
1313 | else |
1314 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1315 | else { |
54310121 |
1316 | MEXTEND(mark,0); |
1317 | *MARK = &sv_undef; |
a0d0e21e |
1318 | } |
54310121 |
1319 | SP = MARK; |
a0d0e21e |
1320 | } |
54310121 |
1321 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1322 | /* in case LEAVE wipes old return values */ |
1323 | for (mark = newsp + 1; mark <= SP; mark++) { |
1324 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1325 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1326 | TAINT_NOT; /* Each item is independent */ |
1327 | } |
1328 | } |
a0d0e21e |
1329 | } |
1330 | curpm = newpm; /* Don't pop $1 et al till now */ |
1331 | |
1332 | LEAVE; |
1333 | |
1334 | RETURN; |
1335 | } |
1336 | |
1337 | PP(pp_iter) |
1338 | { |
4e35701f |
1339 | djSP; |
c09156bb |
1340 | register PERL_CONTEXT *cx; |
5f05dabc |
1341 | SV* sv; |
4633a7c4 |
1342 | AV* av; |
a0d0e21e |
1343 | |
1344 | EXTEND(sp, 1); |
1345 | cx = &cxstack[cxstack_ix]; |
1346 | if (cx->cx_type != CXt_LOOP) |
1347 | DIE("panic: pp_iter"); |
1348 | |
4633a7c4 |
1349 | av = cx->blk_loop.iterary; |
71be2cbc |
1350 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1351 | RETPUSHNO; |
a0d0e21e |
1352 | |
7a4c00b4 |
1353 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e |
1354 | |
5f05dabc |
1355 | if (sv = AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1356 | SvTEMP_off(sv); |
a0d0e21e |
1357 | else |
5f05dabc |
1358 | sv = &sv_undef; |
1359 | if (av != curstack && SvIMMORTAL(sv)) { |
1360 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1361 | if (lv && SvREFCNT(lv) > 1) { |
1362 | SvREFCNT_dec(lv); |
1363 | lv = Nullsv; |
1364 | } |
5f05dabc |
1365 | if (lv) |
1366 | SvREFCNT_dec(LvTARG(lv)); |
1367 | else { |
68dc0745 |
1368 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1369 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1370 | LvTYPE(lv) = 'y'; |
68dc0745 |
1371 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1372 | } |
1373 | LvTARG(lv) = SvREFCNT_inc(av); |
1374 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
8ac85365 |
1375 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc |
1376 | sv = (SV*)lv; |
1377 | } |
a0d0e21e |
1378 | |
7a4c00b4 |
1379 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1380 | RETPUSHYES; |
1381 | } |
1382 | |
1383 | PP(pp_subst) |
1384 | { |
4e35701f |
1385 | djSP; dTARG; |
a0d0e21e |
1386 | register PMOP *pm = cPMOP; |
1387 | PMOP *rpm = pm; |
1388 | register SV *dstr; |
1389 | register char *s; |
1390 | char *strend; |
1391 | register char *m; |
1392 | char *c; |
1393 | register char *d; |
1394 | STRLEN clen; |
1395 | I32 iters = 0; |
1396 | I32 maxiters; |
1397 | register I32 i; |
1398 | bool once; |
71be2cbc |
1399 | bool rxtainted; |
a0d0e21e |
1400 | char *orig; |
1401 | I32 safebase; |
1402 | register REGEXP *rx = pm->op_pmregexp; |
1403 | STRLEN len; |
1404 | int force_on_match = 0; |
4633a7c4 |
1405 | I32 oldsave = savestack_ix; |
a0d0e21e |
1406 | |
5cd24f17 |
1407 | /* known replacement string? */ |
1408 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
a0d0e21e |
1409 | if (op->op_flags & OPf_STACKED) |
1410 | TARG = POPs; |
1411 | else { |
1412 | TARG = GvSV(defgv); |
1413 | EXTEND(SP,1); |
1414 | } |
68dc0745 |
1415 | if (SvREADONLY(TARG) |
1416 | || (SvTYPE(TARG) > SVt_PVLV |
1417 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
1418 | croak(no_modify); |
a0d0e21e |
1419 | s = SvPV(TARG, len); |
68dc0745 |
1420 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1421 | force_on_match = 1; |
9212bbba |
1422 | TAINT_NOT; |
a0d0e21e |
1423 | |
1424 | force_it: |
1425 | if (!pm || !s) |
1426 | DIE("panic: do_subst"); |
1427 | |
1428 | strend = s + len; |
1429 | maxiters = (strend - s) + 10; |
1430 | |
1431 | if (!rx->prelen && curpm) { |
1432 | pm = curpm; |
1433 | rx = pm->op_pmregexp; |
1434 | } |
5f05dabc |
1435 | safebase = (!rx->nparens && !sawampersand); |
a0d0e21e |
1436 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1437 | SAVEINT(multiline); |
1438 | multiline = pm->op_pmflags & PMf_MULTILINE; |
1439 | } |
1440 | orig = m = s; |
1441 | if (pm->op_pmshort) { |
1442 | if (pm->op_pmflags & PMf_SCANFIRST) { |
1443 | if (SvSCREAM(TARG)) { |
1444 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
1445 | goto nope; |
1446 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
1447 | goto nope; |
1448 | } |
1449 | else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
1450 | pm->op_pmshort))) |
1451 | goto nope; |
1452 | if (s && rx->regback >= 0) { |
1453 | ++BmUSEFUL(pm->op_pmshort); |
1454 | s -= rx->regback; |
1455 | if (s < m) |
1456 | s = m; |
1457 | } |
1458 | else |
1459 | s = m; |
1460 | } |
1461 | else if (!multiline) { |
bbce6d69 |
1462 | if (*SvPVX(pm->op_pmshort) != *s |
1463 | || (pm->op_pmslen > 1 |
36477c24 |
1464 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
1465 | goto nope; |
a0d0e21e |
1466 | } |
1467 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
1468 | SvREFCNT_dec(pm->op_pmshort); |
1469 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
1470 | } |
1471 | } |
71be2cbc |
1472 | |
1473 | /* only replace once? */ |
a0d0e21e |
1474 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1475 | |
1476 | /* known replacement string? */ |
5cd24f17 |
1477 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1478 | |
1479 | /* can do inplace substitution? */ |
137443ea |
1480 | if (c && clen <= rx->minlen && safebase) { |
71be2cbc |
1481 | if (! pregexec(rx, s, strend, orig, 0, |
1482 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1483 | PUSHs(&sv_no); |
1484 | LEAVE_SCOPE(oldsave); |
1485 | RETURN; |
1486 | } |
1487 | if (force_on_match) { |
1488 | force_on_match = 0; |
1489 | s = SvPV_force(TARG, len); |
1490 | goto force_it; |
1491 | } |
71be2cbc |
1492 | d = s; |
1493 | curpm = pm; |
1494 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1495 | if (once) { |
1496 | rxtainted = rx->exec_tainted; |
1497 | m = rx->startp[0]; |
1498 | d = rx->endp[0]; |
1499 | s = orig; |
1500 | if (m - s > strend - d) { /* faster to shorten from end */ |
1501 | if (clen) { |
1502 | Copy(c, m, clen, char); |
1503 | m += clen; |
a0d0e21e |
1504 | } |
71be2cbc |
1505 | i = strend - d; |
1506 | if (i > 0) { |
1507 | Move(d, m, i, char); |
1508 | m += i; |
a0d0e21e |
1509 | } |
71be2cbc |
1510 | *m = '\0'; |
1511 | SvCUR_set(TARG, m - s); |
1512 | } |
1513 | /*SUPPRESS 560*/ |
1514 | else if (i = m - s) { /* faster from front */ |
1515 | d -= clen; |
1516 | m = d; |
1517 | sv_chop(TARG, d-i); |
1518 | s += i; |
1519 | while (i--) |
1520 | *--d = *--s; |
1521 | if (clen) |
1522 | Copy(c, m, clen, char); |
1523 | } |
1524 | else if (clen) { |
1525 | d -= clen; |
1526 | sv_chop(TARG, d); |
1527 | Copy(c, d, clen, char); |
1528 | } |
1529 | else { |
1530 | sv_chop(TARG, d); |
1531 | } |
9212bbba |
1532 | TAINT_IF(rxtainted); |
71be2cbc |
1533 | PUSHs(&sv_yes); |
1534 | } |
1535 | else { |
1536 | rxtainted = 0; |
1537 | do { |
1538 | if (iters++ > maxiters) |
1539 | DIE("Substitution loop"); |
1540 | rxtainted |= rx->exec_tainted; |
1541 | m = rx->startp[0]; |
1542 | /*SUPPRESS 560*/ |
1543 | if (i = m - s) { |
1544 | if (s != d) |
1545 | Move(s, d, i, char); |
1546 | d += i; |
a0d0e21e |
1547 | } |
71be2cbc |
1548 | if (clen) { |
1549 | Copy(c, d, clen, char); |
1550 | d += clen; |
1551 | } |
1552 | s = rx->endp[0]; |
1553 | } while (pregexec(rx, s, strend, orig, s == m, |
1554 | Nullsv, TRUE)); /* don't match same null twice */ |
1555 | if (s != d) { |
1556 | i = strend - s; |
1557 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1558 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1559 | } |
9212bbba |
1560 | TAINT_IF(rxtainted); |
71be2cbc |
1561 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1562 | } |
71be2cbc |
1563 | (void)SvPOK_only(TARG); |
1564 | SvSETMAGIC(TARG); |
9212bbba |
1565 | SvTAINT(TARG); |
71be2cbc |
1566 | LEAVE_SCOPE(oldsave); |
1567 | RETURN; |
a0d0e21e |
1568 | } |
71be2cbc |
1569 | |
e50aee73 |
1570 | if (pregexec(rx, s, strend, orig, 0, |
5f05dabc |
1571 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
a0d0e21e |
1572 | if (force_on_match) { |
1573 | force_on_match = 0; |
1574 | s = SvPV_force(TARG, len); |
1575 | goto force_it; |
1576 | } |
71be2cbc |
1577 | rxtainted = rx->exec_tainted; |
a0d0e21e |
1578 | dstr = NEWSV(25, sv_len(TARG)); |
1579 | sv_setpvn(dstr, m, s-m); |
1580 | curpm = pm; |
1581 | if (!c) { |
c09156bb |
1582 | register PERL_CONTEXT *cx; |
a0d0e21e |
1583 | PUSHSUBST(cx); |
1584 | RETURNOP(cPMOP->op_pmreplroot); |
1585 | } |
1586 | do { |
1587 | if (iters++ > maxiters) |
1588 | DIE("Substitution loop"); |
71be2cbc |
1589 | rxtainted |= rx->exec_tainted; |
a0d0e21e |
1590 | if (rx->subbase && rx->subbase != orig) { |
1591 | m = s; |
1592 | s = orig; |
1593 | orig = rx->subbase; |
1594 | s = orig + (m - s); |
1595 | strend = s + (strend - m); |
1596 | } |
1597 | m = rx->startp[0]; |
1598 | sv_catpvn(dstr, s, m-s); |
1599 | s = rx->endp[0]; |
1600 | if (clen) |
1601 | sv_catpvn(dstr, c, clen); |
1602 | if (once) |
1603 | break; |
5f05dabc |
1604 | } while (pregexec(rx, s, strend, orig, s == m, Nullsv, safebase)); |
a0d0e21e |
1605 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1606 | |
9212bbba |
1607 | TAINT_IF(rxtainted); |
1608 | |
4633a7c4 |
1609 | (void)SvOOK_off(TARG); |
cb0b1708 |
1610 | Safefree(SvPVX(TARG)); |
748a9306 |
1611 | SvPVX(TARG) = SvPVX(dstr); |
1612 | SvCUR_set(TARG, SvCUR(dstr)); |
1613 | SvLEN_set(TARG, SvLEN(dstr)); |
1614 | SvPVX(dstr) = 0; |
1615 | sv_free(dstr); |
1616 | |
a0d0e21e |
1617 | (void)SvPOK_only(TARG); |
1618 | SvSETMAGIC(TARG); |
9212bbba |
1619 | SvTAINT(TARG); |
a0d0e21e |
1620 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 |
1621 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1622 | RETURN; |
1623 | } |
5cd24f17 |
1624 | goto ret_no; |
a0d0e21e |
1625 | |
1626 | nope: |
1627 | ++BmUSEFUL(pm->op_pmshort); |
5cd24f17 |
1628 | |
1629 | ret_no: |
a0d0e21e |
1630 | PUSHs(&sv_no); |
4633a7c4 |
1631 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1632 | RETURN; |
1633 | } |
1634 | |
1635 | PP(pp_grepwhile) |
1636 | { |
4e35701f |
1637 | djSP; |
a0d0e21e |
1638 | |
1639 | if (SvTRUEx(POPs)) |
1640 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; |
1641 | ++*markstack_ptr; |
1642 | LEAVE; /* exit inner scope */ |
1643 | |
1644 | /* All done yet? */ |
1645 | if (stack_base + *markstack_ptr > sp) { |
1646 | I32 items; |
54310121 |
1647 | I32 gimme = GIMME_V; |
a0d0e21e |
1648 | |
1649 | LEAVE; /* exit outer scope */ |
1650 | (void)POPMARK; /* pop src */ |
1651 | items = --*markstack_ptr - markstack_ptr[-1]; |
1652 | (void)POPMARK; /* pop dst */ |
1653 | SP = stack_base + POPMARK; /* pop original mark */ |
54310121 |
1654 | if (gimme == G_SCALAR) { |
a0d0e21e |
1655 | dTARGET; |
1656 | XPUSHi(items); |
a0d0e21e |
1657 | } |
54310121 |
1658 | else if (gimme == G_ARRAY) |
1659 | SP += items; |
a0d0e21e |
1660 | RETURN; |
1661 | } |
1662 | else { |
1663 | SV *src; |
1664 | |
1665 | ENTER; /* enter inner scope */ |
1666 | SAVESPTR(curpm); |
1667 | |
1668 | src = stack_base[*markstack_ptr]; |
1669 | SvTEMP_off(src); |
1670 | GvSV(defgv) = src; |
1671 | |
1672 | RETURNOP(cLOGOP->op_other); |
1673 | } |
1674 | } |
1675 | |
1676 | PP(pp_leavesub) |
1677 | { |
4e35701f |
1678 | djSP; |
a0d0e21e |
1679 | SV **mark; |
1680 | SV **newsp; |
1681 | PMOP *newpm; |
1682 | I32 gimme; |
c09156bb |
1683 | register PERL_CONTEXT *cx; |
f86702cc |
1684 | struct block_sub cxsub; |
a0d0e21e |
1685 | |
1686 | POPBLOCK(cx,newpm); |
f86702cc |
1687 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1688 | |
a1f49e72 |
1689 | TAINT_NOT; |
a0d0e21e |
1690 | if (gimme == G_SCALAR) { |
1691 | MARK = newsp + 1; |
1692 | if (MARK <= SP) |
f86702cc |
1693 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
a0d0e21e |
1694 | else { |
f86702cc |
1695 | MEXTEND(MARK, 0); |
a0d0e21e |
1696 | *MARK = &sv_undef; |
1697 | } |
1698 | SP = MARK; |
1699 | } |
54310121 |
1700 | else if (gimme == G_ARRAY) { |
f86702cc |
1701 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
1702 | if (!SvTEMP(*MARK)) { |
f86702cc |
1703 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
1704 | TAINT_NOT; /* Each item is independent */ |
1705 | } |
f86702cc |
1706 | } |
a0d0e21e |
1707 | } |
f86702cc |
1708 | PUTBACK; |
1709 | |
1710 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
1711 | curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1712 | |
1713 | LEAVE; |
a0d0e21e |
1714 | return pop_return(); |
1715 | } |
1716 | |
3de9ffa1 |
1717 | static CV * |
8ac85365 |
1718 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 |
1719 | { |
1720 | dTHR; |
4f01c5a5 |
1721 | SV *oldsv = *svp; |
3de9ffa1 |
1722 | GV *gv; |
3de9ffa1 |
1723 | |
4f01c5a5 |
1724 | *svp = GvSV(DBsub); |
1725 | save_item(*svp); |
3de9ffa1 |
1726 | gv = CvGV(cv); |
1727 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1728 | || strEQ(GvNAME(gv), "END") |
1729 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1730 | !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv) |
1731 | && (gv = (GV*)oldsv) ))) { |
1732 | /* Use GV from the stack as a fallback. */ |
1733 | /* GV is potentially non-unique, or contain different CV. */ |
4f01c5a5 |
1734 | sv_setsv(*svp, newRV((SV*)cv)); |
3de9ffa1 |
1735 | } |
1736 | else { |
4f01c5a5 |
1737 | gv_efullname3(*svp, gv, Nullch); |
3de9ffa1 |
1738 | } |
1739 | cv = GvCV(DBsub); |
1740 | if (CvXSUB(cv)) |
1741 | curcopdb = curcop; |
1742 | return cv; |
1743 | } |
1744 | |
a0d0e21e |
1745 | PP(pp_entersub) |
1746 | { |
4e35701f |
1747 | djSP; dPOPss; |
a0d0e21e |
1748 | GV *gv; |
1749 | HV *stash; |
1750 | register CV *cv; |
c09156bb |
1751 | register PERL_CONTEXT *cx; |
5d94fbed |
1752 | I32 gimme; |
07055b4c |
1753 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
1754 | |
1755 | if (!sv) |
1756 | DIE("Not a CODE reference"); |
1757 | switch (SvTYPE(sv)) { |
1758 | default: |
1759 | if (!SvROK(sv)) { |
748a9306 |
1760 | char *sym; |
1761 | |
fb73857a |
1762 | if (sv == &sv_yes) { /* unfound import, ignore */ |
1763 | if (hasargs) |
1764 | SP = stack_base + POPMARK; |
a0d0e21e |
1765 | RETURN; |
fb73857a |
1766 | } |
15ff848f |
1767 | if (SvGMAGICAL(sv)) { |
1768 | mg_get(sv); |
1769 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
1770 | } |
1771 | else |
1772 | sym = SvPV(sv, na); |
1773 | if (!sym) |
a0d0e21e |
1774 | DIE(no_usym, "a subroutine"); |
1775 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
1776 | DIE(no_symref, sym, "a subroutine"); |
1777 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
1778 | break; |
1779 | } |
1780 | cv = (CV*)SvRV(sv); |
1781 | if (SvTYPE(cv) == SVt_PVCV) |
1782 | break; |
1783 | /* FALL THROUGH */ |
1784 | case SVt_PVHV: |
1785 | case SVt_PVAV: |
1786 | DIE("Not a CODE reference"); |
1787 | case SVt_PVCV: |
1788 | cv = (CV*)sv; |
1789 | break; |
1790 | case SVt_PVGV: |
8ebc5c01 |
1791 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e |
1792 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1793 | break; |
1794 | } |
1795 | |
1796 | ENTER; |
1797 | SAVETMPS; |
1798 | |
1799 | retry: |
1800 | if (!cv) |
1801 | DIE("Not a CODE reference"); |
1802 | |
1803 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
1804 | GV* autogv; |
1805 | SV* subname; |
1806 | |
1807 | /* anonymous or undef'd function leaves us no recourse */ |
1808 | if (CvANON(cv) || !(gv = CvGV(cv))) |
1809 | DIE("Undefined subroutine called"); |
1810 | /* autoloaded stub? */ |
1811 | if (cv != GvCV(gv)) { |
1812 | cv = GvCV(gv); |
1813 | goto retry; |
a0d0e21e |
1814 | } |
44a8e56a |
1815 | /* should call AUTOLOAD now? */ |
54310121 |
1816 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
1817 | FALSE))) |
1818 | { |
44a8e56a |
1819 | cv = GvCV(autogv); |
1820 | goto retry; |
a0d0e21e |
1821 | } |
44a8e56a |
1822 | /* sorry */ |
1823 | subname = sv_newmortal(); |
1824 | gv_efullname3(subname, gv, Nullch); |
1825 | DIE("Undefined subroutine &%s called", SvPVX(subname)); |
a0d0e21e |
1826 | } |
1827 | |
54310121 |
1828 | gimme = GIMME_V; |
3de9ffa1 |
1829 | if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) |
4f01c5a5 |
1830 | cv = get_db_sub(&sv, cv); |
3de9ffa1 |
1831 | if (!cv) |
1832 | DIE("No DBsub routine"); |
a0d0e21e |
1833 | |
11343788 |
1834 | #ifdef USE_THREADS |
3de9ffa1 |
1835 | /* |
1836 | * First we need to check if the sub or method requires locking. |
458fb581 |
1837 | * If so, we gain a lock on the CV, the first argument or the |
1838 | * stash (for static methods), as appropriate. This has to be |
1839 | * inline because for FAKE_THREADS, COND_WAIT inlines code to |
1840 | * reschedule by returning a new op. |
3de9ffa1 |
1841 | */ |
11343788 |
1842 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
1843 | if (CvFLAGS(cv) & CVf_LOCKED) { |
1844 | MAGIC *mg; |
1845 | if (CvFLAGS(cv) & CVf_METHOD) { |
1846 | if (SP > stack_base + TOPMARK) |
1847 | sv = *(stack_base + TOPMARK + 1); |
1848 | else { |
1849 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
1850 | croak("no argument for locked method call"); |
1851 | } |
1852 | if (SvROK(sv)) |
1853 | sv = SvRV(sv); |
458fb581 |
1854 | else { |
1855 | STRLEN len; |
1856 | char *stashname = SvPV(sv, len); |
1857 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); |
1858 | } |
77a005ab |
1859 | } |
1860 | else { |
1861 | sv = (SV*)cv; |
1862 | } |
1863 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
1864 | mg = condpair_magic(sv); |
1865 | MUTEX_LOCK(MgMUTEXP(mg)); |
1866 | if (MgOWNER(mg) == thr) |
1867 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
1868 | else { |
1869 | while (MgOWNER(mg)) |
1870 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
1871 | MgOWNER(mg) = thr; |
1fd28e87 |
1872 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1873 | thr, sv);) |
77a005ab |
1874 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
e55aaa0e |
1875 | SvREFCNT_inc(sv); /* Keep alive until magic_mutexfree */ |
77a005ab |
1876 | save_destructor(unlock_condpair, sv); |
11343788 |
1877 | } |
77a005ab |
1878 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 |
1879 | } |
3de9ffa1 |
1880 | /* |
1881 | * Now we have permission to enter the sub, we must distinguish |
1882 | * four cases. (0) It's an XSUB (in which case we don't care |
1883 | * about ownership); (1) it's ours already (and we're recursing); |
1884 | * (2) it's free (but we may already be using a cached clone); |
1885 | * (3) another thread owns it. Case (1) is easy: we just use it. |
1886 | * Case (2) means we look for a clone--if we have one, use it |
1887 | * otherwise grab ownership of cv. Case (3) means we look for a |
1888 | * clone (for non-XSUBs) and have to create one if we don't |
1889 | * already have one. |
1890 | * Why look for a clone in case (2) when we could just grab |
1891 | * ownership of cv straight away? Well, we could be recursing, |
1892 | * i.e. we originally tried to enter cv while another thread |
1893 | * owned it (hence we used a clone) but it has been freed up |
1894 | * and we're now recursing into it. It may or may not be "better" |
1895 | * to use the clone but at least CvDEPTH can be trusted. |
1896 | */ |
1897 | if (CvOWNER(cv) == thr || CvXSUB(cv)) |
1898 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
11343788 |
1899 | else { |
3de9ffa1 |
1900 | /* Case (2) or (3) */ |
1901 | SV **svp; |
1902 | |
11343788 |
1903 | /* |
3de9ffa1 |
1904 | * XXX Might it be better to release CvMUTEXP(cv) while we |
1905 | * do the hv_fetch? We might find someone has pinched it |
1906 | * when we look again, in which case we would be in case |
1907 | * (3) instead of (2) so we'd have to clone. Would the fact |
1908 | * that we released the mutex more quickly make up for this? |
1909 | */ |
199100c8 |
1910 | svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE); |
3de9ffa1 |
1911 | if (svp) { |
1912 | /* We already have a clone to use */ |
11343788 |
1913 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 |
1914 | cv = *(CV**)svp; |
1915 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
1916 | "entersub: %p already has clone %p:%s\n", |
1917 | thr, cv, SvPEEK((SV*)cv))); |
3de9ffa1 |
1918 | CvOWNER(cv) = thr; |
1919 | SvREFCNT_inc(cv); |
1920 | if (CvDEPTH(cv) == 0) |
1921 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
1922 | } |
11343788 |
1923 | else { |
3de9ffa1 |
1924 | /* (2) => grab ownership of cv. (3) => make clone */ |
1925 | if (!CvOWNER(cv)) { |
1926 | CvOWNER(cv) = thr; |
1927 | SvREFCNT_inc(cv); |
11343788 |
1928 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
d9f997d7 |
1929 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
1930 | "entersub: %p grabbing %p:%s in stash %s\n", |
1931 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? |
3de9ffa1 |
1932 | HvNAME(CvSTASH(cv)) : "(none)")); |
1933 | } else { |
1934 | /* Make a new clone. */ |
1935 | CV *clonecv; |
1936 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
1937 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
1938 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
1939 | "entersub: %p cloning %p:%s\n", |
1940 | thr, cv, SvPEEK((SV*)cv)))); |
3de9ffa1 |
1941 | /* |
1942 | * We're creating a new clone so there's no race |
1943 | * between the original MUTEX_UNLOCK and the |
1944 | * SvREFCNT_inc since no one will be trying to undef |
1945 | * it out from underneath us. At least, I don't think |
1946 | * there's a race... |
1947 | */ |
1948 | clonecv = cv_clone(cv); |
1949 | SvREFCNT_dec(cv); /* finished with this */ |
199100c8 |
1950 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 |
1951 | CvOWNER(clonecv) = thr; |
1952 | cv = clonecv; |
11343788 |
1953 | SvREFCNT_inc(cv); |
11343788 |
1954 | } |
3de9ffa1 |
1955 | DEBUG_L(if (CvDEPTH(cv) != 0) |
1956 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
1957 | CvDEPTH(cv));); |
1958 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
11343788 |
1959 | } |
3de9ffa1 |
1960 | } |
11343788 |
1961 | #endif /* USE_THREADS */ |
1962 | |
1963 | gimme = GIMME; |
1964 | |
a0d0e21e |
1965 | if (CvXSUB(cv)) { |
1966 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1967 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1968 | dMARK; |
1969 | register I32 items = SP - MARK; |
67955e0c |
1970 | /* We dont worry to copy from @_. */ |
a0d0e21e |
1971 | while (sp > mark) { |
1972 | sp[1] = sp[0]; |
1973 | sp--; |
1974 | } |
1975 | stack_sp = mark + 1; |
ecfc5424 |
1976 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1977 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
1978 | MARK - stack_base + 1, |
1979 | items); |
a0d0e21e |
1980 | stack_sp = stack_base + items; |
1981 | } |
1982 | else { |
748a9306 |
1983 | I32 markix = TOPMARK; |
1984 | |
a0d0e21e |
1985 | PUTBACK; |
67955e0c |
1986 | |
1987 | if (!hasargs) { |
1988 | /* Need to copy @_ to stack. Alternative may be to |
1989 | * switch stack to @_, and copy return values |
1990 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
1991 | AV* av; |
1992 | I32 items; |
1993 | #ifdef USE_THREADS |
1994 | av = (AV*)curpad[0]; |
1995 | #else |
1996 | av = GvAV(defgv); |
1997 | #endif /* USE_THREADS */ |
1998 | items = AvFILL(av) + 1; |
67955e0c |
1999 | |
2000 | if (items) { |
2001 | /* Mark is at the end of the stack. */ |
2002 | EXTEND(sp, items); |
2003 | Copy(AvARRAY(av), sp + 1, items, SV*); |
2004 | sp += items; |
2005 | PUTBACK ; |
2006 | } |
2007 | } |
2008 | if (curcopdb) { /* We assume that the first |
2009 | XSUB in &DB::sub is the |
2010 | called one. */ |
2011 | SAVESPTR(curcop); |
2012 | curcop = curcopdb; |
2013 | curcopdb = NULL; |
2014 | } |
2015 | /* Do we need to open block here? XXXX */ |
a0d0e21e |
2016 | (void)(*CvXSUB(cv))(cv); |
748a9306 |
2017 | |
2018 | /* Enforce some sanity in scalar context. */ |
5d94fbed |
2019 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 |
2020 | if (markix > stack_sp - stack_base) |
2021 | *(stack_base + markix) = &sv_undef; |
2022 | else |
2023 | *(stack_base + markix) = *stack_sp; |
2024 | stack_sp = stack_base + markix; |
2025 | } |
a0d0e21e |
2026 | } |
2027 | LEAVE; |
2028 | return NORMAL; |
2029 | } |
2030 | else { |
2031 | dMARK; |
2032 | register I32 items = SP - MARK; |
a0d0e21e |
2033 | AV* padlist = CvPADLIST(cv); |
2034 | SV** svp = AvARRAY(padlist); |
2035 | push_return(op->op_next); |
2036 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2037 | PUSHSUB(cx); |
2038 | CvDEPTH(cv)++; |
2039 | if (CvDEPTH(cv) < 2) |
2040 | (void)SvREFCNT_inc(cv); |
2041 | else { /* save temporaries on recursion? */ |
5f05dabc |
2042 | if (CvDEPTH(cv) == 100 && dowarn |
84902520 |
2043 | && !(PERLDB_SUB && cv == GvCV(DBsub))) |
44a8e56a |
2044 | sub_crush_depth(cv); |
a0d0e21e |
2045 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
2046 | AV *av; |
2047 | AV *newpad = newAV(); |
4aa0a1f7 |
2048 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
2049 | I32 ix = AvFILL((AV*)svp[1]); |
2050 | svp = AvARRAY(svp[0]); |
748a9306 |
2051 | for ( ;ix > 0; ix--) { |
a0d0e21e |
2052 | if (svp[ix] != &sv_undef) { |
748a9306 |
2053 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2054 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2055 | || *name == '&') /* anonymous code? */ |
2056 | { |
2057 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2058 | } |
2059 | else { /* our own lexical */ |
2060 | if (*name == '@') |
2061 | av_store(newpad, ix, sv = (SV*)newAV()); |
2062 | else if (*name == '%') |
2063 | av_store(newpad, ix, sv = (SV*)newHV()); |
2064 | else |
2065 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2066 | SvPADMY_on(sv); |
2067 | } |
a0d0e21e |
2068 | } |
2069 | else { |
748a9306 |
2070 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2071 | SvPADTMP_on(sv); |
2072 | } |
2073 | } |
2074 | av = newAV(); /* will be @_ */ |
2075 | av_extend(av, 0); |
2076 | av_store(newpad, 0, (SV*)av); |
2077 | AvFLAGS(av) = AVf_REIFY; |
2078 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
2079 | AvFILL(padlist) = CvDEPTH(cv); |
2080 | svp = AvARRAY(padlist); |
2081 | } |
2082 | } |
6d4ff0d2 |
2083 | #ifdef USE_THREADS |
2084 | if (!hasargs) { |
a0d0e21e |
2085 | AV* av = (AV*)curpad[0]; |
6d4ff0d2 |
2086 | |
2087 | items = AvFILL(av) + 1; |
2088 | if (items) { |
2089 | /* Mark is at the end of the stack. */ |
2090 | EXTEND(sp, items); |
2091 | Copy(AvARRAY(av), sp + 1, items, SV*); |
2092 | sp += items; |
2093 | PUTBACK ; |
2094 | } |
2095 | } |
2096 | #endif /* USE_THREADS */ |
2097 | SAVESPTR(curpad); |
2098 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
2099 | #ifndef USE_THREADS |
2100 | if (hasargs) |
2101 | #endif /* USE_THREADS */ |
2102 | { |
2103 | AV* av; |
a0d0e21e |
2104 | SV** ary; |
2105 | |
77a005ab |
2106 | #if 0 |
0f15f207 |
2107 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2108 | "%p entersub preparing @_\n", thr)); |
77a005ab |
2109 | #endif |
6d4ff0d2 |
2110 | av = (AV*)curpad[0]; |
a0d0e21e |
2111 | if (AvREAL(av)) { |
2112 | av_clear(av); |
2113 | AvREAL_off(av); |
2114 | } |
6d4ff0d2 |
2115 | #ifndef USE_THREADS |
a0d0e21e |
2116 | cx->blk_sub.savearray = GvAV(defgv); |
0c8c7a05 |
2117 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2118 | #endif /* USE_THREADS */ |
2119 | cx->blk_sub.argarray = av; |
a0d0e21e |
2120 | ++MARK; |
2121 | |
2122 | if (items > AvMAX(av) + 1) { |
2123 | ary = AvALLOC(av); |
2124 | if (AvARRAY(av) != ary) { |
2125 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2126 | SvPVX(av) = (char*)ary; |
2127 | } |
2128 | if (items > AvMAX(av) + 1) { |
2129 | AvMAX(av) = items - 1; |
2130 | Renew(ary,items,SV*); |
2131 | AvALLOC(av) = ary; |
2132 | SvPVX(av) = (char*)ary; |
2133 | } |
2134 | } |
2135 | Copy(MARK,AvARRAY(av),items,SV*); |
2136 | AvFILL(av) = items - 1; |
2137 | |
2138 | while (items--) { |
2139 | if (*MARK) |
2140 | SvTEMP_off(*MARK); |
2141 | MARK++; |
2142 | } |
2143 | } |
77a005ab |
2144 | #if 0 |
0f15f207 |
2145 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2146 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab |
2147 | #endif |
a0d0e21e |
2148 | RETURNOP(CvSTART(cv)); |
2149 | } |
2150 | } |
2151 | |
44a8e56a |
2152 | void |
8ac85365 |
2153 | sub_crush_depth(CV *cv) |
44a8e56a |
2154 | { |
2155 | if (CvANON(cv)) |
2156 | warn("Deep recursion on anonymous subroutine"); |
2157 | else { |
2158 | SV* tmpstr = sv_newmortal(); |
2159 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
2160 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); |
2161 | } |
2162 | } |
2163 | |
a0d0e21e |
2164 | PP(pp_aelem) |
2165 | { |
4e35701f |
2166 | djSP; |
a0d0e21e |
2167 | SV** svp; |
748a9306 |
2168 | I32 elem = POPi; |
68dc0745 |
2169 | AV* av = (AV*)POPs; |
2170 | U32 lval = op->op_flags & OPf_MOD; |
2171 | U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
a0d0e21e |
2172 | |
748a9306 |
2173 | if (elem > 0) |
2174 | elem -= curcop->cop_arybase; |
a0d0e21e |
2175 | if (SvTYPE(av) != SVt_PVAV) |
2176 | RETPUSHUNDEF; |
68dc0745 |
2177 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2178 | if (lval) { |
68dc0745 |
2179 | if (!svp || *svp == &sv_undef) { |
2180 | SV* lv; |
2181 | if (!defer) |
2182 | DIE(no_aelem, elem); |
2183 | lv = sv_newmortal(); |
2184 | sv_upgrade(lv, SVt_PVLV); |
2185 | LvTYPE(lv) = 'y'; |
2186 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2187 | LvTARG(lv) = SvREFCNT_inc(av); |
2188 | LvTARGOFF(lv) = elem; |
2189 | LvTARGLEN(lv) = 1; |
2190 | PUSHs(lv); |
2191 | RETURN; |
2192 | } |
a0d0e21e |
2193 | if (op->op_private & OPpLVAL_INTRO) |
2194 | save_svref(svp); |
5f05dabc |
2195 | else if (op->op_private & OPpDEREF) |
68dc0745 |
2196 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e |
2197 | } |
2198 | PUSHs(svp ? *svp : &sv_undef); |
2199 | RETURN; |
2200 | } |
2201 | |
02a9e968 |
2202 | void |
8ac85365 |
2203 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 |
2204 | { |
2205 | if (SvGMAGICAL(sv)) |
2206 | mg_get(sv); |
2207 | if (!SvOK(sv)) { |
2208 | if (SvREADONLY(sv)) |
2209 | croak(no_modify); |
5f05dabc |
2210 | if (SvTYPE(sv) < SVt_RV) |
2211 | sv_upgrade(sv, SVt_RV); |
2212 | else if (SvTYPE(sv) >= SVt_PV) { |
2213 | (void)SvOOK_off(sv); |
2214 | Safefree(SvPVX(sv)); |
2215 | SvLEN(sv) = SvCUR(sv) = 0; |
2216 | } |
68dc0745 |
2217 | switch (to_what) { |
5f05dabc |
2218 | case OPpDEREF_SV: |
2219 | SvRV(sv) = newSV(0); |
2220 | break; |
2221 | case OPpDEREF_AV: |
2222 | SvRV(sv) = (SV*)newAV(); |
2223 | break; |
2224 | case OPpDEREF_HV: |
2225 | SvRV(sv) = (SV*)newHV(); |
2226 | break; |
2227 | } |
02a9e968 |
2228 | SvROK_on(sv); |
2229 | SvSETMAGIC(sv); |
2230 | } |
2231 | } |
2232 | |
a0d0e21e |
2233 | PP(pp_method) |
2234 | { |
4e35701f |
2235 | djSP; |
a0d0e21e |
2236 | SV* sv; |
2237 | SV* ob; |
2238 | GV* gv; |
56304f61 |
2239 | HV* stash; |
2240 | char* name; |
ac91690f |
2241 | char* packname; |
2242 | STRLEN packlen; |
a0d0e21e |
2243 | |
fb73857a |
2244 | if (SvROK(TOPs)) { |
2245 | sv = SvRV(TOPs); |
2246 | if (SvTYPE(sv) == SVt_PVCV) { |
2247 | SETs(sv); |
2248 | RETURN; |
2249 | } |
2250 | } |
2251 | |
56304f61 |
2252 | name = SvPV(TOPs, na); |
a0d0e21e |
2253 | sv = *(stack_base + TOPMARK + 1); |
2254 | |
16d20bd9 |
2255 | if (SvGMAGICAL(sv)) |
2256 | mg_get(sv); |
a0d0e21e |
2257 | if (SvROK(sv)) |
16d20bd9 |
2258 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2259 | else { |
2260 | GV* iogv; |
a0d0e21e |
2261 | |
56304f61 |
2262 | packname = Nullch; |
a0d0e21e |
2263 | if (!SvOK(sv) || |
56304f61 |
2264 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2265 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2266 | !(ob=(SV*)GvIO(iogv))) |
2267 | { |
56304f61 |
2268 | if (!packname || !isIDFIRST(*packname)) |
ac91690f |
2269 | DIE("Can't call method \"%s\" without a package or object reference", name); |
56304f61 |
2270 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2271 | goto fetch; |
a0d0e21e |
2272 | } |
ac91690f |
2273 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2274 | } |
2275 | |
ac91690f |
2276 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e |
2277 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e |
2278 | |
56304f61 |
2279 | stash = SvSTASH(ob); |
a0d0e21e |
2280 | |
ac91690f |
2281 | fetch: |
ac91690f |
2282 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2283 | if (!gv) { |
2284 | char* leaf = name; |
2285 | char* sep = Nullch; |
2286 | char* p; |
2287 | |
2288 | for (p = name; *p; p++) { |
2289 | if (*p == '\'') |
2290 | sep = p, leaf = p + 1; |
2291 | else if (*p == ':' && *(p + 1) == ':') |
2292 | sep = p, leaf = p + 2; |
2293 | } |
2294 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
2295 | packname = HvNAME(sep ? curcop->cop_stash : stash); |
2296 | packlen = strlen(packname); |
2297 | } |
2298 | else { |
2299 | packname = name; |
2300 | packlen = sep - name; |
2301 | } |
2302 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", |
2303 | leaf, (int)packlen, packname); |
2304 | } |
8ebc5c01 |
2305 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2306 | RETURN; |
2307 | } |