Commit | Line | Data |
68795e93 |
1 | /* sharedsv.c |
2 | * |
3 | * Copyright (c) 2001, Larry Wall |
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 | */ |
b050c948 |
9 | |
68795e93 |
10 | /* |
11 | * Contributed by Arthur Bergman arthur@contiller.se |
12 | * |
13 | * "Hand any two wizards a piece of rope and they would instinctively pull in |
14 | * opposite directions." |
15 | * --Sourcery |
16 | * |
17 | */ |
18 | |
19 | #define PERL_NO_GET_CONTEXT |
b050c948 |
20 | #include "EXTERN.h" |
21 | #include "perl.h" |
22 | #include "XSUB.h" |
23 | |
68795e93 |
24 | PerlInterpreter *PL_sharedsv_space; /* The shared sv space */ |
25 | perl_mutex PL_sharedsv_space_mutex; /* Mutex protecting the shared sv space */ |
26 | |
27 | typedef struct { |
28 | SV *sv; /* The actual SV */ |
29 | perl_mutex mutex; /* Our mutex */ |
30 | perl_cond cond; /* Our condition variable */ |
31 | perl_cond user_cond; /* For user-level conditions */ |
32 | IV locks; /* Number of locks held */ |
33 | PerlInterpreter *owner; /* Who owns the lock? */ |
34 | U16 index; /* Update index */ |
35 | } shared_sv; |
36 | |
37 | #define SHAREDSvGET(a) (a->sv) |
38 | #define SHAREDSvLOCK(a) Perl_sharedsv_lock(aTHX_ a) |
39 | #define SHAREDSvUNLOCK(a) Perl_sharedsv_unlock(aTHX_ a) |
40 | |
41 | #define SHAREDSvEDIT(a) STMT_START { \ |
42 | MUTEX_LOCK(&PL_sharedsv_space_mutex); \ |
43 | SHAREDSvLOCK((a)); \ |
44 | PERL_SET_CONTEXT(PL_sharedsv_space); \ |
45 | } STMT_END |
46 | |
47 | #define SHAREDSvRELEASE(a) STMT_START { \ |
48 | PERL_SET_CONTEXT((a)->owner); \ |
49 | SHAREDSvUNLOCK((a)); \ |
50 | MUTEX_UNLOCK(&PL_sharedsv_space_mutex); \ |
51 | } STMT_END |
52 | |
53 | extern void Perl_sharedsv_init(pTHX); |
54 | extern shared_sv* Perl_sharedsv_new(pTHX); |
55 | extern shared_sv* Perl_sharedsv_find(pTHX_ SV* sv); |
56 | extern void Perl_sharedsv_lock(pTHX_ shared_sv* ssv); |
57 | extern void Perl_sharedsv_unlock(pTHX_ shared_sv* ssv); |
58 | extern void Perl_sharedsv_unlock_scope(pTHX_ shared_sv* ssv); |
59 | extern void Perl_sharedsv_thrcnt_inc(pTHX_ shared_sv* ssv); |
60 | extern void Perl_sharedsv_thrcnt_dec(pTHX_ shared_sv* ssv); |
61 | |
62 | /* |
63 | Shared SV |
64 | |
65 | Shared SV is a structure for keeping the backend storage |
66 | of shared svs. |
67 | |
68 | */ |
69 | |
70 | /* |
71 | |
72 | =head1 Shared SV Functions |
73 | |
74 | =for apidoc sharedsv_init |
75 | |
76 | Saves a space for keeping SVs wider than an interpreter, |
77 | currently only stores a pointer to the first interpreter. |
78 | |
79 | =cut |
80 | |
81 | */ |
82 | |
83 | void |
84 | Perl_sharedsv_init(pTHX) |
85 | { |
86 | PerlInterpreter* old_context = PERL_GET_CONTEXT; |
87 | PL_sharedsv_space = perl_alloc(); |
88 | perl_construct(PL_sharedsv_space); |
89 | PERL_SET_CONTEXT(old_context); |
90 | MUTEX_INIT(&PL_sharedsv_space_mutex); |
91 | } |
92 | |
93 | /* |
94 | =for apidoc sharedsv_new |
95 | |
96 | Allocates a new shared sv struct, you must yourself create the SV/AV/HV. |
97 | =cut |
98 | */ |
99 | |
100 | shared_sv * |
101 | Perl_sharedsv_new(pTHX) |
102 | { |
103 | shared_sv* ssv; |
104 | New(2555,ssv,1,shared_sv); |
105 | MUTEX_INIT(&ssv->mutex); |
106 | COND_INIT(&ssv->cond); |
107 | COND_INIT(&ssv->user_cond); |
108 | ssv->owner = 0; |
109 | ssv->locks = 0; |
110 | ssv->index = 0; |
111 | return ssv; |
112 | } |
113 | |
114 | |
115 | /* |
116 | =for apidoc sharedsv_find |
117 | |
118 | Tries to find if a given SV has a shared backend, either by |
119 | looking at magic, or by checking if it is tied again threads::shared. |
120 | |
121 | =cut |
122 | */ |
123 | |
124 | shared_sv * |
125 | Perl_sharedsv_find(pTHX_ SV* sv) |
126 | { |
127 | /* does all it can to find a shared_sv struct, returns NULL otherwise */ |
128 | shared_sv* ssv = NULL; |
129 | switch (SvTYPE(sv)) { |
130 | case SVt_PVMG: |
131 | case SVt_PVAV: |
132 | case SVt_PVHV: { |
133 | MAGIC* mg = mg_find(sv, PERL_MAGIC_ext); |
134 | if(mg) { |
135 | if(strcmp(mg->mg_ptr,"threads::shared")) |
136 | break; |
137 | ssv = INT2PTR(shared_sv *, SvIV(mg->mg_obj)); |
138 | break; |
139 | } |
140 | |
141 | mg = mg_find(sv,PERL_MAGIC_tied); |
142 | if(mg) { |
143 | SV* obj = SvTIED_obj(sv,mg); |
144 | if(sv_derived_from(obj, "threads::shared")) |
145 | ssv = INT2PTR(shared_sv *, SvIV(SvRV(obj))); |
146 | break; |
147 | } |
148 | } |
149 | } |
150 | return ssv; |
151 | } |
152 | |
153 | /* |
154 | =for apidoc sharedsv_lock |
155 | |
156 | Recursive locks on a sharedsv. |
157 | Locks are dynamically scoped at the level of the first lock. |
158 | =cut |
159 | */ |
160 | void |
161 | Perl_sharedsv_lock(pTHX_ shared_sv* ssv) |
162 | { |
163 | if(!ssv) |
164 | return; |
165 | MUTEX_LOCK(&ssv->mutex); |
166 | if(ssv->owner && ssv->owner == my_perl) { |
167 | ssv->locks++; |
168 | MUTEX_UNLOCK(&ssv->mutex); |
169 | return; |
170 | } |
171 | while(ssv->owner) |
172 | COND_WAIT(&ssv->cond,&ssv->mutex); |
173 | ssv->locks++; |
174 | ssv->owner = my_perl; |
175 | if(ssv->locks == 1) |
176 | SAVEDESTRUCTOR_X(Perl_sharedsv_unlock_scope,ssv); |
177 | MUTEX_UNLOCK(&ssv->mutex); |
178 | } |
179 | |
180 | /* |
181 | =for apidoc sharedsv_unlock |
182 | |
183 | Recursively unlocks a shared sv. |
184 | |
185 | =cut |
186 | */ |
187 | |
188 | void |
189 | Perl_sharedsv_unlock(pTHX_ shared_sv* ssv) |
190 | { |
191 | MUTEX_LOCK(&ssv->mutex); |
192 | if(ssv->owner != my_perl) { |
193 | Perl_croak(aTHX_ "panic: Perl_sharedsv_unlock unlocking mutex that we don't own"); |
194 | MUTEX_UNLOCK(&ssv->mutex); |
195 | return; |
196 | } |
197 | |
198 | if(--ssv->locks == 0) { |
199 | ssv->owner = NULL; |
200 | COND_SIGNAL(&ssv->cond); |
201 | } |
202 | MUTEX_UNLOCK(&ssv->mutex); |
203 | } |
204 | |
205 | void |
206 | Perl_sharedsv_unlock_scope(pTHX_ shared_sv* ssv) |
207 | { |
208 | MUTEX_LOCK(&ssv->mutex); |
209 | if(ssv->owner != my_perl) { |
210 | MUTEX_UNLOCK(&ssv->mutex); |
211 | return; |
212 | } |
213 | ssv->locks = 0; |
214 | ssv->owner = NULL; |
215 | COND_SIGNAL(&ssv->cond); |
216 | MUTEX_UNLOCK(&ssv->mutex); |
217 | } |
218 | |
219 | /* |
220 | =for apidoc sharedsv_thrcnt_inc |
221 | |
222 | Increments the threadcount of a sharedsv. |
223 | =cut |
224 | */ |
225 | void |
226 | Perl_sharedsv_thrcnt_inc(pTHX_ shared_sv* ssv) |
227 | { |
228 | SHAREDSvLOCK(ssv); |
229 | SvREFCNT_inc(ssv->sv); |
230 | SHAREDSvUNLOCK(ssv); |
231 | } |
232 | |
233 | /* |
234 | =for apidoc sharedsv_thrcnt_dec |
235 | |
236 | Decrements the threadcount of a shared sv. When a threads frontend is freed |
237 | this function should be called. |
238 | |
239 | =cut |
240 | */ |
241 | |
242 | void |
243 | Perl_sharedsv_thrcnt_dec(pTHX_ shared_sv* ssv) |
244 | { |
245 | SV* sv; |
246 | SHAREDSvLOCK(ssv); |
247 | sv = SHAREDSvGET(ssv); |
248 | if (SvREFCNT(sv) == 1) { |
249 | switch (SvTYPE(sv)) { |
250 | case SVt_RV: |
251 | if (SvROK(sv)) |
252 | Perl_sharedsv_thrcnt_dec(aTHX_ INT2PTR(shared_sv *, SvIV(SvRV(sv)))); |
253 | break; |
254 | case SVt_PVAV: { |
255 | SV **src_ary = AvARRAY((AV *)sv); |
256 | SSize_t items = AvFILLp((AV *)sv) + 1; |
257 | |
258 | while (items-- > 0) { |
259 | if(SvTYPE(*src_ary)) |
260 | Perl_sharedsv_thrcnt_dec(aTHX_ INT2PTR(shared_sv *, SvIV(*src_ary))); |
261 | src_ary++; |
262 | } |
263 | break; |
264 | } |
265 | case SVt_PVHV: { |
266 | HE *entry; |
267 | (void)hv_iterinit((HV *)sv); |
268 | while ((entry = hv_iternext((HV *)sv))) |
269 | Perl_sharedsv_thrcnt_dec( |
270 | aTHX_ INT2PTR(shared_sv *, SvIV(hv_iterval((HV *)sv, entry))) |
271 | ); |
272 | break; |
273 | } |
274 | } |
275 | } |
276 | Perl_sv_free(PL_sharedsv_space,SHAREDSvGET(ssv)); |
277 | SHAREDSvUNLOCK(ssv); |
278 | } |
279 | |
280 | |
409b1fd3 |
281 | MGVTBL svtable; |
b050c948 |
282 | |
ba14dd9a |
283 | #define shared_sv_attach_sv(sv,shared) Perl_shared_sv_attach_sv(aTHX_ sv,shared) |
284 | |
68795e93 |
285 | SV* Perl_shared_sv_attach_sv (pTHX_ SV* sv, shared_sv* shared) { |
b050c948 |
286 | HV* shared_hv = get_hv("threads::shared::shared", FALSE); |
170958c3 |
287 | SV* id = newSViv(PTR2IV(shared)); |
b050c948 |
288 | STRLEN length = sv_len(id); |
289 | SV* tiedobject; |
290 | SV** tiedobject_ = hv_fetch(shared_hv, SvPV(id,length), length, 0); |
291 | if(tiedobject_) { |
292 | tiedobject = (*tiedobject_); |
0d76d117 |
293 | if(sv) { |
294 | SvROK_on(sv); |
295 | SvRV(sv) = SvRV(tiedobject); |
296 | } else { |
297 | sv = newRV(SvRV(tiedobject)); |
298 | } |
b050c948 |
299 | } else { |
409b1fd3 |
300 | switch(SvTYPE(SHAREDSvGET(shared))) { |
938785a2 |
301 | case SVt_PVAV: { |
302 | SV* weakref; |
303 | SV* obj_ref = newSViv(0); |
304 | SV* obj = newSVrv(obj_ref,"threads::shared::av"); |
305 | AV* hv = newAV(); |
170958c3 |
306 | sv_setiv(obj,PTR2IV(shared)); |
938785a2 |
307 | weakref = newRV((SV*)hv); |
308 | sv = newRV_noinc((SV*)hv); |
309 | sv_rvweaken(weakref); |
310 | sv_magic((SV*) hv, obj_ref, PERL_MAGIC_tied, Nullch, 0); |
311 | hv_store(shared_hv, SvPV(id,length), length, weakref, 0); |
312 | Perl_sharedsv_thrcnt_inc(aTHX_ shared); |
313 | } |
314 | break; |
315 | case SVt_PVHV: { |
316 | SV* weakref; |
317 | SV* obj_ref = newSViv(0); |
318 | SV* obj = newSVrv(obj_ref,"threads::shared::hv"); |
319 | HV* hv = newHV(); |
170958c3 |
320 | sv_setiv(obj,PTR2IV(shared)); |
938785a2 |
321 | weakref = newRV((SV*)hv); |
322 | sv = newRV_noinc((SV*)hv); |
323 | sv_rvweaken(weakref); |
324 | sv_magic((SV*) hv, obj_ref, PERL_MAGIC_tied, Nullch, 0); |
325 | hv_store(shared_hv, SvPV(id,length), length, weakref, 0); |
326 | Perl_sharedsv_thrcnt_inc(aTHX_ shared); |
327 | } |
328 | break; |
409b1fd3 |
329 | default: { |
330 | MAGIC* shared_magic; |
331 | SV* value = newSVsv(SHAREDSvGET(shared)); |
170958c3 |
332 | SV* obj = newSViv(PTR2IV(shared)); |
409b1fd3 |
333 | sv_magic(value, 0, PERL_MAGIC_ext, "threads::shared", 16); |
334 | shared_magic = mg_find(value, PERL_MAGIC_ext); |
335 | shared_magic->mg_virtual = &svtable; |
170958c3 |
336 | shared_magic->mg_obj = newSViv(PTR2IV(shared)); |
409b1fd3 |
337 | shared_magic->mg_flags |= MGf_REFCOUNTED; |
338 | shared_magic->mg_private = 0; |
339 | SvMAGICAL_on(value); |
340 | sv = newRV_noinc(value); |
341 | value = newRV(value); |
342 | sv_rvweaken(value); |
343 | hv_store(shared_hv, SvPV(id,length),length, value, 0); |
344 | Perl_sharedsv_thrcnt_inc(aTHX_ shared); |
345 | } |
346 | |
347 | } |
b050c948 |
348 | } |
0d76d117 |
349 | return sv; |
b050c948 |
350 | } |
351 | |
352 | |
353 | int shared_sv_fetch_mg (pTHX_ SV* sv, MAGIC *mg) { |
170958c3 |
354 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(mg->mg_obj)); |
b050c948 |
355 | SHAREDSvLOCK(shared); |
55fc11ad |
356 | if(mg->mg_private != shared->index) { |
357 | if(SvROK(SHAREDSvGET(shared))) { |
170958c3 |
358 | shared_sv* target = INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(shared)))); |
55fc11ad |
359 | shared_sv_attach_sv(sv, target); |
360 | } else { |
361 | sv_setsv(sv, SHAREDSvGET(shared)); |
362 | } |
363 | mg->mg_private = shared->index; |
b050c948 |
364 | } |
365 | SHAREDSvUNLOCK(shared); |
366 | |
367 | return 0; |
368 | } |
369 | |
370 | int shared_sv_store_mg (pTHX_ SV* sv, MAGIC *mg) { |
170958c3 |
371 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(mg->mg_obj)); |
b050c948 |
372 | SHAREDSvLOCK(shared); |
373 | if(SvROK(SHAREDSvGET(shared))) |
170958c3 |
374 | Perl_sharedsv_thrcnt_dec(aTHX_ INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(shared))))); |
b050c948 |
375 | if(SvROK(sv)) { |
376 | shared_sv* target = Perl_sharedsv_find(aTHX_ SvRV(sv)); |
377 | if(!target) { |
b050c948 |
378 | sv_setsv(sv,SHAREDSvGET(shared)); |
68795e93 |
379 | SHAREDSvUNLOCK(shared); |
b050c948 |
380 | Perl_croak(aTHX_ "You cannot assign a non shared reference to a shared scalar"); |
381 | } |
f70d29d4 |
382 | SHAREDSvEDIT(shared); |
b050c948 |
383 | Perl_sv_free(PL_sharedsv_space,SHAREDSvGET(shared)); |
170958c3 |
384 | SHAREDSvGET(shared) = newRV_noinc(newSViv(PTR2IV(target))); |
b050c948 |
385 | } else { |
f70d29d4 |
386 | SHAREDSvEDIT(shared); |
387 | sv_setsv(SHAREDSvGET(shared), sv); |
b050c948 |
388 | } |
55fc11ad |
389 | shared->index++; |
390 | mg->mg_private = shared->index; |
b050c948 |
391 | SHAREDSvRELEASE(shared); |
392 | if(SvROK(SHAREDSvGET(shared))) |
170958c3 |
393 | Perl_sharedsv_thrcnt_inc(aTHX_ INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(shared))))); |
b050c948 |
394 | SHAREDSvUNLOCK(shared); |
395 | return 0; |
396 | } |
397 | |
ba14dd9a |
398 | int |
399 | shared_sv_destroy_mg (pTHX_ SV* sv, MAGIC *mg) |
400 | { |
170958c3 |
401 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(mg->mg_obj)); |
ba14dd9a |
402 | if (shared) { |
409b1fd3 |
403 | HV* shared_hv = get_hv("threads::shared::shared", FALSE); |
170958c3 |
404 | SV* id = newSViv(PTR2IV(shared)); |
409b1fd3 |
405 | STRLEN length = sv_len(id); |
406 | hv_delete(shared_hv, SvPV(id,length), length,0); |
ba14dd9a |
407 | Perl_sharedsv_thrcnt_dec(aTHX_ shared); |
409b1fd3 |
408 | } |
ba14dd9a |
409 | return 0; |
b050c948 |
410 | } |
411 | |
412 | MGVTBL svtable = {MEMBER_TO_FPTR(shared_sv_fetch_mg), |
413 | MEMBER_TO_FPTR(shared_sv_store_mg), |
414 | 0, |
415 | 0, |
416 | MEMBER_TO_FPTR(shared_sv_destroy_mg) |
417 | }; |
418 | |
419 | MODULE = threads::shared PACKAGE = threads::shared |
420 | |
421 | |
ce127893 |
422 | PROTOTYPES: ENABLE |
b050c948 |
423 | |
424 | |
425 | SV* |
426 | ptr(ref) |
427 | SV* ref |
428 | CODE: |
429 | RETVAL = newSViv(SvIV(SvRV(ref))); |
430 | OUTPUT: |
431 | RETVAL |
432 | |
433 | |
434 | SV* |
435 | _thrcnt(ref) |
436 | SV* ref |
437 | CODE: |
866fba46 |
438 | shared_sv* shared; |
439 | if(SvROK(ref)) |
440 | ref = SvRV(ref); |
441 | shared = Perl_sharedsv_find(aTHX, ref); |
b050c948 |
442 | if(!shared) |
443 | croak("thrcnt can only be used on shared values"); |
444 | SHAREDSvLOCK(shared); |
445 | RETVAL = newSViv(SvREFCNT(SHAREDSvGET(shared))); |
446 | SHAREDSvUNLOCK(shared); |
447 | OUTPUT: |
68795e93 |
448 | RETVAL |
b050c948 |
449 | |
450 | |
451 | void |
cd8c9bf8 |
452 | thrcnt_inc(ref,perl) |
b050c948 |
453 | SV* ref |
cd8c9bf8 |
454 | SV* perl |
b050c948 |
455 | CODE: |
456 | shared_sv* shared; |
170958c3 |
457 | PerlInterpreter* origperl = INT2PTR(PerlInterpreter*, SvIV(perl)); |
cd8c9bf8 |
458 | PerlInterpreter* oldperl = PERL_GET_CONTEXT; |
68795e93 |
459 | if(SvROK(ref)) |
b050c948 |
460 | ref = SvRV(ref); |
461 | shared = Perl_sharedsv_find(aTHX, ref); |
462 | if(!shared) |
463 | croak("thrcnt can only be used on shared values"); |
cd8c9bf8 |
464 | PERL_SET_CONTEXT(origperl); |
b050c948 |
465 | Perl_sharedsv_thrcnt_inc(aTHX_ shared); |
cd8c9bf8 |
466 | PERL_SET_CONTEXT(oldperl); |
b050c948 |
467 | |
866fba46 |
468 | void |
469 | _thrcnt_dec(ref) |
470 | SV* ref |
471 | CODE: |
170958c3 |
472 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(ref)); |
866fba46 |
473 | if(!shared) |
474 | croak("thrcnt can only be used on shared values"); |
475 | Perl_sharedsv_thrcnt_dec(aTHX_ shared); |
476 | |
68795e93 |
477 | void |
6f942b98 |
478 | unlock_enabled(ref) |
479 | SV* ref |
ce127893 |
480 | PROTOTYPE: \[$@%] |
6f942b98 |
481 | CODE: |
482 | shared_sv* shared; |
483 | if(SvROK(ref)) |
484 | ref = SvRV(ref); |
485 | shared = Perl_sharedsv_find(aTHX, ref); |
486 | if(!shared) |
487 | croak("unlock can only be used on shared values"); |
488 | SHAREDSvUNLOCK(shared); |
489 | |
490 | void |
491 | lock_enabled(ref) |
492 | SV* ref |
6f942b98 |
493 | CODE: |
494 | shared_sv* shared; |
495 | if(SvROK(ref)) |
496 | ref = SvRV(ref); |
497 | shared = Perl_sharedsv_find(aTHX, ref); |
498 | if(!shared) |
499 | croak("lock can only be used on shared values"); |
500 | SHAREDSvLOCK(shared); |
501 | |
502 | |
503 | void |
504 | cond_wait_enabled(ref) |
505 | SV* ref |
ce127893 |
506 | PROTOTYPE: \[$@%] |
6f942b98 |
507 | CODE: |
508 | shared_sv* shared; |
509 | int locks; |
510 | if(SvROK(ref)) |
511 | ref = SvRV(ref); |
512 | shared = Perl_sharedsv_find(aTHX_ ref); |
513 | if(!shared) |
514 | croak("cond_wait can only be used on shared values"); |
515 | if(shared->owner != PERL_GET_CONTEXT) |
516 | croak("You need a lock before you can cond_wait"); |
517 | MUTEX_LOCK(&shared->mutex); |
518 | shared->owner = NULL; |
519 | locks = shared->locks = 0; |
520 | COND_WAIT(&shared->user_cond, &shared->mutex); |
521 | shared->owner = PERL_GET_CONTEXT; |
522 | shared->locks = locks; |
a6b94e59 |
523 | MUTEX_UNLOCK(&shared->mutex); |
6f942b98 |
524 | |
525 | void cond_signal_enabled(ref) |
526 | SV* ref |
ce127893 |
527 | PROTOTYPE: \[$@%] |
6f942b98 |
528 | CODE: |
529 | shared_sv* shared; |
530 | if(SvROK(ref)) |
531 | ref = SvRV(ref); |
532 | shared = Perl_sharedsv_find(aTHX_ ref); |
533 | if(!shared) |
534 | croak("cond_signal can only be used on shared values"); |
535 | COND_SIGNAL(&shared->user_cond); |
536 | |
537 | |
538 | void cond_broadcast_enabled(ref) |
539 | SV* ref |
ce127893 |
540 | PROTOTYPE: \[$@%] |
6f942b98 |
541 | CODE: |
542 | shared_sv* shared; |
543 | if(SvROK(ref)) |
544 | ref = SvRV(ref); |
545 | shared = Perl_sharedsv_find(aTHX_ ref); |
546 | if(!shared) |
547 | croak("cond_broadcast can only be used on shared values"); |
548 | COND_BROADCAST(&shared->user_cond); |
b050c948 |
549 | |
550 | MODULE = threads::shared PACKAGE = threads::shared::sv |
551 | |
552 | SV* |
553 | new(class, value) |
554 | SV* class |
555 | SV* value |
556 | CODE: |
557 | shared_sv* shared = Perl_sharedsv_new(aTHX); |
558 | MAGIC* shared_magic; |
170958c3 |
559 | SV* obj = newSViv(PTR2IV(shared)); |
b050c948 |
560 | SHAREDSvEDIT(shared); |
561 | SHAREDSvGET(shared) = newSVsv(value); |
562 | SHAREDSvRELEASE(shared); |
563 | sv_magic(value, 0, PERL_MAGIC_ext, "threads::shared", 16); |
564 | shared_magic = mg_find(value, PERL_MAGIC_ext); |
565 | shared_magic->mg_virtual = &svtable; |
170958c3 |
566 | shared_magic->mg_obj = newSViv(PTR2IV(shared)); |
b050c948 |
567 | shared_magic->mg_flags |= MGf_REFCOUNTED; |
55fc11ad |
568 | shared_magic->mg_private = 0; |
b050c948 |
569 | SvMAGICAL_on(value); |
570 | RETVAL = obj; |
571 | OUTPUT: |
572 | RETVAL |
573 | |
574 | |
aaf3876d |
575 | MODULE = threads::shared PACKAGE = threads::shared::av |
576 | |
68795e93 |
577 | SV* |
aaf3876d |
578 | new(class, value) |
579 | SV* class |
580 | SV* value |
581 | CODE: |
582 | shared_sv* shared = Perl_sharedsv_new(aTHX); |
170958c3 |
583 | SV* obj = newSViv(PTR2IV(shared)); |
aaf3876d |
584 | SHAREDSvEDIT(shared); |
585 | SHAREDSvGET(shared) = (SV*) newAV(); |
586 | SHAREDSvRELEASE(shared); |
587 | RETVAL = obj; |
588 | OUTPUT: |
589 | RETVAL |
590 | |
591 | void |
592 | STORE(self, index, value) |
593 | SV* self |
594 | SV* index |
595 | SV* value |
68795e93 |
596 | CODE: |
170958c3 |
597 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
598 | shared_sv* slot; |
599 | SV* aentry; |
600 | SV** aentry_; |
79a24c1c |
601 | if(SvROK(value)) { |
602 | shared_sv* target = Perl_sharedsv_find(aTHX_ SvRV(value)); |
603 | if(!target) { |
d1be9408 |
604 | Perl_croak(aTHX_ "You cannot assign a non shared reference to a shared array"); |
79a24c1c |
605 | } |
170958c3 |
606 | value = newRV_noinc(newSViv(PTR2IV(target))); |
79a24c1c |
607 | } |
aaf3876d |
608 | SHAREDSvLOCK(shared); |
609 | aentry_ = av_fetch((AV*) SHAREDSvGET(shared), SvIV(index), 0); |
610 | if(aentry_ && SvIV((*aentry_))) { |
611 | aentry = (*aentry_); |
170958c3 |
612 | slot = INT2PTR(shared_sv*, SvIV(aentry)); |
aaf3876d |
613 | if(SvROK(SHAREDSvGET(slot))) |
170958c3 |
614 | Perl_sharedsv_thrcnt_dec(aTHX_ INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot))))); |
aaf3876d |
615 | SHAREDSvEDIT(slot); |
616 | sv_setsv(SHAREDSvGET(slot), value); |
617 | SHAREDSvRELEASE(slot); |
618 | } else { |
619 | slot = Perl_sharedsv_new(aTHX); |
620 | SHAREDSvEDIT(shared); |
621 | SHAREDSvGET(slot) = newSVsv(value); |
170958c3 |
622 | aentry = newSViv(PTR2IV(slot)); |
aaf3876d |
623 | av_store((AV*) SHAREDSvGET(shared), SvIV(index), aentry); |
624 | SHAREDSvRELEASE(shared); |
625 | } |
79a24c1c |
626 | if(SvROK(SHAREDSvGET(slot))) |
170958c3 |
627 | Perl_sharedsv_thrcnt_inc(aTHX_ INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot))))); |
79a24c1c |
628 | |
aaf3876d |
629 | SHAREDSvUNLOCK(shared); |
630 | |
631 | SV* |
632 | FETCH(self, index) |
633 | SV* self |
634 | SV* index |
635 | CODE: |
170958c3 |
636 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
637 | shared_sv* slot; |
638 | SV* aentry; |
639 | SV** aentry_; |
640 | SV* retval; |
641 | SHAREDSvLOCK(shared); |
642 | aentry_ = av_fetch((AV*) SHAREDSvGET(shared), SvIV(index),0); |
643 | if(aentry_) { |
644 | aentry = (*aentry_); |
645 | if(SvTYPE(aentry) == SVt_NULL) { |
646 | retval = &PL_sv_undef; |
647 | } else { |
170958c3 |
648 | slot = INT2PTR(shared_sv*, SvIV(aentry)); |
79a24c1c |
649 | if(SvROK(SHAREDSvGET(slot))) { |
170958c3 |
650 | shared_sv* target = INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot)))); |
68795e93 |
651 | retval = Perl_shared_sv_attach_sv(aTHX_ NULL,target); |
79a24c1c |
652 | } else { |
653 | retval = newSVsv(SHAREDSvGET(slot)); |
654 | } |
aaf3876d |
655 | } |
656 | } else { |
657 | retval = &PL_sv_undef; |
658 | } |
659 | SHAREDSvUNLOCK(shared); |
660 | RETVAL = retval; |
661 | OUTPUT: |
662 | RETVAL |
663 | |
664 | void |
665 | PUSH(self, ...) |
666 | SV* self |
667 | CODE: |
170958c3 |
668 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
669 | int i; |
670 | SHAREDSvLOCK(shared); |
671 | for(i = 1; i < items; i++) { |
672 | shared_sv* slot = Perl_sharedsv_new(aTHX); |
673 | SV* tmp = ST(i); |
79a24c1c |
674 | if(SvROK(tmp)) { |
675 | shared_sv* target = Perl_sharedsv_find(aTHX_ SvRV(tmp)); |
676 | if(!target) { |
d1be9408 |
677 | Perl_croak(aTHX_ "You cannot assign a non shared reference to a shared array"); |
79a24c1c |
678 | } |
170958c3 |
679 | tmp = newRV_noinc(newSViv(PTR2IV(target))); |
79a24c1c |
680 | } |
aaf3876d |
681 | SHAREDSvEDIT(slot); |
682 | SHAREDSvGET(slot) = newSVsv(tmp); |
170958c3 |
683 | av_push((AV*) SHAREDSvGET(shared), newSViv(PTR2IV(slot))); |
aaf3876d |
684 | SHAREDSvRELEASE(slot); |
79a24c1c |
685 | if(SvROK(SHAREDSvGET(slot))) |
170958c3 |
686 | Perl_sharedsv_thrcnt_inc(aTHX_ INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot))))); |
aaf3876d |
687 | } |
688 | SHAREDSvUNLOCK(shared); |
689 | |
690 | void |
691 | UNSHIFT(self, ...) |
692 | SV* self |
693 | CODE: |
170958c3 |
694 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
695 | int i; |
696 | SHAREDSvLOCK(shared); |
697 | SHAREDSvEDIT(shared); |
698 | av_unshift((AV*)SHAREDSvGET(shared), items - 1); |
699 | SHAREDSvRELEASE(shared); |
700 | for(i = 1; i < items; i++) { |
701 | shared_sv* slot = Perl_sharedsv_new(aTHX); |
702 | SV* tmp = ST(i); |
79a24c1c |
703 | if(SvROK(tmp)) { |
704 | shared_sv* target = Perl_sharedsv_find(aTHX_ SvRV(tmp)); |
705 | if(!target) { |
d1be9408 |
706 | Perl_croak(aTHX_ "You cannot assign a non shared reference to a shared array"); |
79a24c1c |
707 | } |
170958c3 |
708 | tmp = newRV_noinc(newSViv(PTR2IV(target))); |
79a24c1c |
709 | } |
aaf3876d |
710 | SHAREDSvEDIT(slot); |
711 | SHAREDSvGET(slot) = newSVsv(tmp); |
170958c3 |
712 | av_store((AV*) SHAREDSvGET(shared), i - 1, newSViv(PTR2IV(slot))); |
aaf3876d |
713 | SHAREDSvRELEASE(slot); |
79a24c1c |
714 | if(SvROK(SHAREDSvGET(slot))) |
170958c3 |
715 | Perl_sharedsv_thrcnt_inc(aTHX_ INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot))))); |
aaf3876d |
716 | } |
717 | SHAREDSvUNLOCK(shared); |
718 | |
719 | SV* |
720 | POP(self) |
721 | SV* self |
722 | CODE: |
170958c3 |
723 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
724 | shared_sv* slot; |
725 | SV* retval; |
726 | SHAREDSvLOCK(shared); |
727 | SHAREDSvEDIT(shared); |
728 | retval = av_pop((AV*)SHAREDSvGET(shared)); |
729 | SHAREDSvRELEASE(shared); |
730 | if(retval && SvIV(retval)) { |
170958c3 |
731 | slot = INT2PTR(shared_sv*, SvIV(retval)); |
79a24c1c |
732 | if(SvROK(SHAREDSvGET(slot))) { |
170958c3 |
733 | shared_sv* target = INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot)))); |
68795e93 |
734 | retval = Perl_shared_sv_attach_sv(aTHX_ NULL,target); |
79a24c1c |
735 | } else { |
736 | retval = newSVsv(SHAREDSvGET(slot)); |
737 | } |
aaf3876d |
738 | Perl_sharedsv_thrcnt_dec(aTHX_ slot); |
739 | } else { |
740 | retval = &PL_sv_undef; |
741 | } |
742 | SHAREDSvUNLOCK(shared); |
743 | RETVAL = retval; |
744 | OUTPUT: |
745 | RETVAL |
746 | |
747 | |
748 | SV* |
749 | SHIFT(self) |
750 | SV* self |
751 | CODE: |
170958c3 |
752 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
753 | shared_sv* slot; |
754 | SV* retval; |
755 | SHAREDSvLOCK(shared); |
756 | SHAREDSvEDIT(shared); |
757 | retval = av_shift((AV*)SHAREDSvGET(shared)); |
758 | SHAREDSvRELEASE(shared); |
759 | if(retval && SvIV(retval)) { |
170958c3 |
760 | slot = INT2PTR(shared_sv*, SvIV(retval)); |
79a24c1c |
761 | if(SvROK(SHAREDSvGET(slot))) { |
170958c3 |
762 | shared_sv* target = INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot)))); |
68795e93 |
763 | retval = Perl_shared_sv_attach_sv(aTHX_ NULL,target); |
79a24c1c |
764 | } else { |
765 | retval = newSVsv(SHAREDSvGET(slot)); |
766 | } |
aaf3876d |
767 | Perl_sharedsv_thrcnt_dec(aTHX_ slot); |
768 | } else { |
769 | retval = &PL_sv_undef; |
770 | } |
771 | SHAREDSvUNLOCK(shared); |
772 | RETVAL = retval; |
773 | OUTPUT: |
774 | RETVAL |
775 | |
776 | void |
777 | CLEAR(self) |
778 | SV* self |
779 | CODE: |
170958c3 |
780 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
781 | shared_sv* slot; |
782 | SV** svp; |
783 | I32 i; |
784 | SHAREDSvLOCK(shared); |
785 | svp = AvARRAY((AV*)SHAREDSvGET(shared)); |
786 | i = AvFILLp((AV*)SHAREDSvGET(shared)); |
787 | while ( i >= 0) { |
788 | if(SvIV(svp[i])) { |
170958c3 |
789 | Perl_sharedsv_thrcnt_dec(aTHX_ INT2PTR(shared_sv*, SvIV(svp[i]))); |
aaf3876d |
790 | } |
791 | i--; |
792 | } |
793 | SHAREDSvEDIT(shared); |
794 | av_clear((AV*)SHAREDSvGET(shared)); |
795 | SHAREDSvRELEASE(shared); |
796 | SHAREDSvUNLOCK(shared); |
797 | |
798 | void |
799 | EXTEND(self, count) |
800 | SV* self |
801 | SV* count |
802 | CODE: |
170958c3 |
803 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
804 | SHAREDSvEDIT(shared); |
805 | av_extend((AV*)SHAREDSvGET(shared), (I32) SvIV(count)); |
806 | SHAREDSvRELEASE(shared); |
807 | |
808 | |
809 | |
810 | |
811 | SV* |
812 | EXISTS(self, index) |
813 | SV* self |
814 | SV* index |
815 | CODE: |
170958c3 |
816 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
817 | I32 exists; |
818 | SHAREDSvLOCK(shared); |
819 | exists = av_exists((AV*) SHAREDSvGET(shared), (I32) SvIV(index)); |
820 | if(exists) { |
821 | RETVAL = &PL_sv_yes; |
822 | } else { |
823 | RETVAL = &PL_sv_no; |
824 | } |
825 | SHAREDSvUNLOCK(shared); |
826 | |
827 | void |
828 | STORESIZE(self,count) |
829 | SV* self |
830 | SV* count |
831 | CODE: |
170958c3 |
832 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
833 | SHAREDSvEDIT(shared); |
834 | av_fill((AV*) SHAREDSvGET(shared), (I32) SvIV(count)); |
835 | SHAREDSvRELEASE(shared); |
836 | |
837 | SV* |
838 | FETCHSIZE(self) |
839 | SV* self |
840 | CODE: |
170958c3 |
841 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
842 | SHAREDSvLOCK(shared); |
843 | RETVAL = newSViv(av_len((AV*) SHAREDSvGET(shared)) + 1); |
844 | SHAREDSvUNLOCK(shared); |
845 | OUTPUT: |
846 | RETVAL |
847 | |
848 | SV* |
849 | DELETE(self,index) |
850 | SV* self |
851 | SV* index |
852 | CODE: |
170958c3 |
853 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
aaf3876d |
854 | shared_sv* slot; |
855 | SHAREDSvLOCK(shared); |
856 | if(av_exists((AV*) SHAREDSvGET(shared), (I32) SvIV(index))) { |
857 | SV* tmp; |
858 | SHAREDSvEDIT(shared); |
859 | tmp = av_delete((AV*)SHAREDSvGET(shared), (I32) SvIV(index),0); |
860 | SHAREDSvRELEASE(shared); |
861 | if(SvIV(tmp)) { |
170958c3 |
862 | slot = INT2PTR(shared_sv*, SvIV(tmp)); |
79a24c1c |
863 | if(SvROK(SHAREDSvGET(slot))) { |
170958c3 |
864 | shared_sv* target = INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot)))); |
68795e93 |
865 | RETVAL = Perl_shared_sv_attach_sv(aTHX_ NULL,target); |
79a24c1c |
866 | } else { |
867 | RETVAL = newSVsv(SHAREDSvGET(slot)); |
868 | } |
68795e93 |
869 | Perl_sharedsv_thrcnt_dec(aTHX_ slot); |
aaf3876d |
870 | } else { |
871 | RETVAL = &PL_sv_undef; |
68795e93 |
872 | } |
aaf3876d |
873 | } else { |
874 | RETVAL = &PL_sv_undef; |
875 | } |
876 | SHAREDSvUNLOCK(shared); |
877 | OUTPUT: |
878 | RETVAL |
879 | |
880 | AV* |
881 | SPLICE(self, offset, length, ...) |
882 | SV* self |
883 | SV* offset |
884 | SV* length |
885 | CODE: |
886 | croak("Splice is not implmented for shared arrays"); |
887 | |
8669ce85 |
888 | MODULE = threads::shared PACKAGE = threads::shared::hv |
aaf3876d |
889 | |
68795e93 |
890 | SV* |
8669ce85 |
891 | new(class, value) |
892 | SV* class |
893 | SV* value |
894 | CODE: |
895 | shared_sv* shared = Perl_sharedsv_new(aTHX); |
170958c3 |
896 | SV* obj = newSViv(PTR2IV(shared)); |
8669ce85 |
897 | SHAREDSvEDIT(shared); |
898 | SHAREDSvGET(shared) = (SV*) newHV(); |
899 | SHAREDSvRELEASE(shared); |
900 | RETVAL = obj; |
901 | OUTPUT: |
902 | RETVAL |
903 | |
904 | void |
905 | STORE(self, key, value) |
906 | SV* self |
907 | SV* key |
908 | SV* value |
909 | CODE: |
170958c3 |
910 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
8669ce85 |
911 | shared_sv* slot; |
912 | SV* hentry; |
913 | SV** hentry_; |
914 | STRLEN len; |
915 | char* ckey = SvPV(key, len); |
409b1fd3 |
916 | SHAREDSvLOCK(shared); |
0d76d117 |
917 | if(SvROK(value)) { |
918 | shared_sv* target = Perl_sharedsv_find(aTHX_ SvRV(value)); |
919 | if(!target) { |
920 | Perl_croak(aTHX_ "You cannot assign a non shared reference to a shared hash"); |
921 | } |
409b1fd3 |
922 | SHAREDSvEDIT(shared); |
170958c3 |
923 | value = newRV_noinc(newSViv(PTR2IV(target))); |
409b1fd3 |
924 | SHAREDSvRELEASE(shared); |
0d76d117 |
925 | } |
8669ce85 |
926 | hentry_ = hv_fetch((HV*) SHAREDSvGET(shared), ckey, len, 0); |
927 | if(hentry_ && SvIV((*hentry_))) { |
928 | hentry = (*hentry_); |
170958c3 |
929 | slot = INT2PTR(shared_sv*, SvIV(hentry)); |
8669ce85 |
930 | if(SvROK(SHAREDSvGET(slot))) |
170958c3 |
931 | Perl_sharedsv_thrcnt_dec(aTHX_ INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot))))); |
8669ce85 |
932 | SHAREDSvEDIT(slot); |
933 | sv_setsv(SHAREDSvGET(slot), value); |
934 | SHAREDSvRELEASE(slot); |
935 | } else { |
936 | slot = Perl_sharedsv_new(aTHX); |
937 | SHAREDSvEDIT(shared); |
938 | SHAREDSvGET(slot) = newSVsv(value); |
170958c3 |
939 | hentry = newSViv(PTR2IV(slot)); |
8669ce85 |
940 | hv_store((HV*) SHAREDSvGET(shared), ckey,len , hentry, 0); |
941 | SHAREDSvRELEASE(shared); |
942 | } |
0d76d117 |
943 | if(SvROK(SHAREDSvGET(slot))) |
170958c3 |
944 | Perl_sharedsv_thrcnt_inc(aTHX_ INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot))))); |
8669ce85 |
945 | SHAREDSvUNLOCK(shared); |
946 | |
947 | |
948 | SV* |
949 | FETCH(self, key) |
950 | SV* self |
951 | SV* key |
952 | CODE: |
170958c3 |
953 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
8669ce85 |
954 | shared_sv* slot; |
955 | SV* hentry; |
956 | SV** hentry_; |
957 | SV* retval; |
958 | STRLEN len; |
959 | char* ckey = SvPV(key, len); |
960 | SHAREDSvLOCK(shared); |
961 | hentry_ = hv_fetch((HV*) SHAREDSvGET(shared), ckey, len,0); |
962 | if(hentry_) { |
963 | hentry = (*hentry_); |
964 | if(SvTYPE(hentry) == SVt_NULL) { |
965 | retval = &PL_sv_undef; |
966 | } else { |
170958c3 |
967 | slot = INT2PTR(shared_sv*, SvIV(hentry)); |
0d76d117 |
968 | if(SvROK(SHAREDSvGET(slot))) { |
170958c3 |
969 | shared_sv* target = INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot)))); |
68795e93 |
970 | retval = Perl_shared_sv_attach_sv(aTHX_ NULL, target); |
0d76d117 |
971 | } else { |
972 | retval = newSVsv(SHAREDSvGET(slot)); |
973 | } |
8669ce85 |
974 | } |
975 | } else { |
976 | retval = &PL_sv_undef; |
977 | } |
978 | SHAREDSvUNLOCK(shared); |
979 | RETVAL = retval; |
980 | OUTPUT: |
981 | RETVAL |
982 | |
983 | void |
984 | CLEAR(self) |
985 | SV* self |
986 | CODE: |
170958c3 |
987 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
8669ce85 |
988 | shared_sv* slot; |
989 | HE* entry; |
990 | SHAREDSvLOCK(shared); |
991 | Perl_hv_iterinit(PL_sharedsv_space, (HV*) SHAREDSvGET(shared)); |
992 | entry = Perl_hv_iternext(PL_sharedsv_space, (HV*) SHAREDSvGET(shared)); |
993 | while(entry) { |
170958c3 |
994 | slot = INT2PTR(shared_sv*, SvIV(Perl_hv_iterval(PL_sharedsv_space, (HV*) SHAREDSvGET(shared), entry))); |
8669ce85 |
995 | Perl_sharedsv_thrcnt_dec(aTHX_ slot); |
996 | entry = Perl_hv_iternext(PL_sharedsv_space,(HV*) SHAREDSvGET(shared)); |
997 | } |
998 | SHAREDSvEDIT(shared); |
999 | hv_clear((HV*) SHAREDSvGET(shared)); |
1000 | SHAREDSvRELEASE(shared); |
1001 | SHAREDSvUNLOCK(shared); |
1002 | |
1003 | SV* |
1004 | FIRSTKEY(self) |
1005 | SV* self |
1006 | CODE: |
170958c3 |
1007 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
8669ce85 |
1008 | char* key = NULL; |
1009 | I32 len; |
1010 | HE* entry; |
1011 | SHAREDSvLOCK(shared); |
1012 | Perl_hv_iterinit(PL_sharedsv_space, (HV*) SHAREDSvGET(shared)); |
1013 | entry = Perl_hv_iternext(PL_sharedsv_space, (HV*) SHAREDSvGET(shared)); |
1014 | if(entry) { |
1015 | key = Perl_hv_iterkey(PL_sharedsv_space, entry,&len); |
1016 | RETVAL = newSVpv(key, len); |
1017 | } else { |
1018 | RETVAL = &PL_sv_undef; |
1019 | } |
1020 | SHAREDSvUNLOCK(shared); |
1021 | OUTPUT: |
1022 | RETVAL |
1023 | |
1024 | |
1025 | SV* |
1026 | NEXTKEY(self, oldkey) |
1027 | SV* self |
1028 | SV* oldkey |
1029 | CODE: |
170958c3 |
1030 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
8669ce85 |
1031 | char* key = NULL; |
1032 | I32 len; |
1033 | HE* entry; |
1034 | SHAREDSvLOCK(shared); |
1035 | entry = Perl_hv_iternext(PL_sharedsv_space, (HV*) SHAREDSvGET(shared)); |
1036 | if(entry) { |
1037 | key = Perl_hv_iterkey(PL_sharedsv_space, entry,&len); |
1038 | RETVAL = newSVpv(key, len); |
1039 | } else { |
1040 | RETVAL = &PL_sv_undef; |
1041 | } |
1042 | SHAREDSvUNLOCK(shared); |
1043 | OUTPUT: |
1044 | RETVAL |
1045 | |
1046 | |
1047 | SV* |
1048 | EXISTS(self, key) |
1049 | SV* self |
1050 | SV* key |
1051 | CODE: |
170958c3 |
1052 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
8669ce85 |
1053 | STRLEN len; |
1054 | char* ckey = SvPV(key, len); |
1055 | SHAREDSvLOCK(shared); |
1056 | if(hv_exists((HV*)SHAREDSvGET(shared), ckey, len)) { |
1057 | RETVAL = &PL_sv_yes; |
1058 | } else { |
1059 | RETVAL = &PL_sv_no; |
1060 | } |
1061 | SHAREDSvUNLOCK(shared); |
1062 | OUTPUT: |
1063 | RETVAL |
1064 | |
1065 | SV* |
1066 | DELETE(self, key) |
1067 | SV* self |
1068 | SV* key |
1069 | CODE: |
170958c3 |
1070 | shared_sv* shared = INT2PTR(shared_sv*, SvIV(SvRV(self))); |
8669ce85 |
1071 | shared_sv* slot; |
1072 | STRLEN len; |
1073 | char* ckey = SvPV(key, len); |
1074 | SV* tmp; |
1075 | SHAREDSvLOCK(shared); |
1076 | SHAREDSvEDIT(shared); |
1077 | tmp = hv_delete((HV*) SHAREDSvGET(shared), ckey, len,0); |
1078 | SHAREDSvRELEASE(shared); |
1079 | if(tmp) { |
170958c3 |
1080 | slot = INT2PTR(shared_sv*, SvIV(tmp)); |
0d76d117 |
1081 | if(SvROK(SHAREDSvGET(slot))) { |
170958c3 |
1082 | shared_sv* target = INT2PTR(shared_sv*, SvIV(SvRV(SHAREDSvGET(slot)))); |
68795e93 |
1083 | RETVAL = Perl_shared_sv_attach_sv(aTHX_ NULL, target); |
0d76d117 |
1084 | } else { |
1085 | RETVAL = newSVsv(SHAREDSvGET(slot)); |
1086 | } |
8669ce85 |
1087 | Perl_sharedsv_thrcnt_dec(aTHX_ slot); |
1088 | } else { |
1089 | RETVAL = &PL_sv_undef; |
1090 | } |
1091 | SHAREDSvUNLOCK(shared); |
1092 | OUTPUT: |
1093 | RETVAL |
68795e93 |
1094 | |
1095 | BOOT: |
1096 | { |
1097 | Perl_sharedsv_init(aTHX); |
1098 | } |