Commit | Line | Data |
68795e93 |
1 | #define PERL_NO_GET_CONTEXT |
2 | #include "EXTERN.h" |
3 | #include "perl.h" |
4 | #include "XSUB.h" |
5 | |
73e09c8f |
6 | #ifdef USE_ITHREADS |
7 | |
68795e93 |
8 | #ifdef WIN32 |
9 | #include <windows.h> |
10 | #include <win32thread.h> |
11 | #define PERL_THREAD_SETSPECIFIC(k,v) TlsSetValue(k,v) |
12 | #define PERL_THREAD_GETSPECIFIC(k,v) v = TlsGetValue(k) |
13 | #define PERL_THREAD_ALLOC_SPECIFIC(k) \ |
14 | STMT_START {\ |
15 | if((k = TlsAlloc()) == TLS_OUT_OF_INDEXES) {\ |
16 | PerlIO_printf(PerlIO_stderr(),"panic threads.h: TlsAlloc");\ |
17 | exit(1);\ |
18 | }\ |
19 | } STMT_END |
20 | #else |
21 | #include <pthread.h> |
22 | #include <thread.h> |
23 | |
24 | #define PERL_THREAD_SETSPECIFIC(k,v) pthread_setspecific(k,v) |
25 | #ifdef OLD_PTHREADS_API |
26 | #define PERL_THREAD_DETACH(t) pthread_detach(&(t)) |
27 | #define PERL_THREAD_GETSPECIFIC(k,v) pthread_getspecific(k,&v) |
28 | #define PERL_THREAD_ALLOC_SPECIFIC(k) STMT_START {\ |
29 | if(pthread_keycreate(&(k),0)) {\ |
30 | PerlIO_printf(PerlIO_stderr(), "panic threads.h: pthread_key_create");\ |
31 | exit(1);\ |
32 | }\ |
33 | } STMT_END |
34 | #else |
35 | #define PERL_THREAD_DETACH(t) pthread_detach((t)) |
36 | #define PERL_THREAD_GETSPECIFIC(k,v) v = pthread_getspecific(k) |
37 | #define PERL_THREAD_ALLOC_SPECIFIC(k) STMT_START {\ |
38 | if(pthread_key_create(&(k),0)) {\ |
39 | PerlIO_printf(PerlIO_stderr(), "panic threads.h: pthread_key_create");\ |
40 | exit(1);\ |
41 | }\ |
42 | } STMT_END |
43 | #endif |
44 | #endif |
45 | |
62375a60 |
46 | /* Values for 'state' member */ |
47 | #define PERL_ITHR_JOINABLE 0 |
48 | #define PERL_ITHR_DETACHED 1 |
49 | #define PERL_ITHR_FINISHED 4 |
50 | #define PERL_ITHR_JOINED 2 |
51 | |
68795e93 |
52 | typedef struct ithread_s { |
53 | struct ithread_s *next; /* next thread in the list */ |
54 | struct ithread_s *prev; /* prev thread in the list */ |
55 | PerlInterpreter *interp; /* The threads interpreter */ |
56 | I32 tid; /* threads module's thread id */ |
57 | perl_mutex mutex; /* mutex for updating things in this struct */ |
58 | I32 count; /* how many SVs have a reference to us */ |
62375a60 |
59 | signed char state; /* are we detached ? */ |
a446a88f |
60 | int gimme; /* Context of create */ |
68795e93 |
61 | SV* init_function; /* Code to run */ |
62 | SV* params; /* args to pass function */ |
63 | #ifdef WIN32 |
64 | DWORD thr; /* OS's idea if thread id */ |
65 | HANDLE handle; /* OS's waitable handle */ |
66 | #else |
67 | pthread_t thr; /* OS's handle for the thread */ |
68 | #endif |
69 | } ithread; |
70 | |
71 | ithread *threads; |
72 | |
73 | /* Macros to supply the aTHX_ in an embed.h like manner */ |
74 | #define ithread_join(thread) Perl_ithread_join(aTHX_ thread) |
75 | #define ithread_DESTROY(thread) Perl_ithread_DESTROY(aTHX_ thread) |
76 | #define ithread_CLONE(thread) Perl_ithread_CLONE(aTHX_ thread) |
77 | #define ithread_detach(thread) Perl_ithread_detach(aTHX_ thread) |
78 | #define ithread_tid(thread) ((thread)->tid) |
f9dff5f5 |
79 | #define ithread_yield(thread) (YIELD); |
68795e93 |
80 | |
58c2ef19 |
81 | static perl_mutex create_destruct_mutex; /* protects the creation and destruction of threads*/ |
68795e93 |
82 | |
83 | I32 tid_counter = 0; |
62375a60 |
84 | I32 known_threads = 0; |
58c2ef19 |
85 | I32 active_threads = 0; |
68795e93 |
86 | perl_key self_key; |
87 | |
88 | /* |
89 | * Clear up after thread is done with |
90 | */ |
91 | void |
62375a60 |
92 | Perl_ithread_destruct (pTHX_ ithread* thread, const char *why) |
68795e93 |
93 | { |
3deee5e7 |
94 | PerlInterpreter* destroyperl = NULL; |
68795e93 |
95 | MUTEX_LOCK(&thread->mutex); |
62375a60 |
96 | if (!thread->next) { |
97 | Perl_croak(aTHX_ "panic: destruct destroyed thread %p (%s)",thread, why); |
98 | } |
68795e93 |
99 | if (thread->count != 0) { |
100 | MUTEX_UNLOCK(&thread->mutex); |
d1400e48 |
101 | return; |
68795e93 |
102 | } |
58c2ef19 |
103 | MUTEX_LOCK(&create_destruct_mutex); |
68795e93 |
104 | /* Remove from circular list of threads */ |
105 | if (thread->next == thread) { |
106 | /* last one should never get here ? */ |
107 | threads = NULL; |
108 | } |
109 | else { |
f42ad631 |
110 | thread->next->prev = thread->prev; |
111 | thread->prev->next = thread->next; |
68795e93 |
112 | if (threads == thread) { |
113 | threads = thread->next; |
114 | } |
62375a60 |
115 | thread->next = NULL; |
116 | thread->prev = NULL; |
68795e93 |
117 | } |
62375a60 |
118 | known_threads--; |
119 | assert( known_threads >= 0 ); |
ba14dd9a |
120 | #if 0 |
62375a60 |
121 | Perl_warn(aTHX_ "destruct %d @ %p by %p now %d", |
122 | thread->tid,thread->interp,aTHX, known_threads); |
ba14dd9a |
123 | #endif |
62375a60 |
124 | MUTEX_UNLOCK(&create_destruct_mutex); |
125 | /* Thread is now disowned */ |
68795e93 |
126 | if (thread->interp) { |
1c3adb19 |
127 | dTHXa(thread->interp); |
68795e93 |
128 | PERL_SET_CONTEXT(thread->interp); |
1c3adb19 |
129 | SvREFCNT_dec(thread->params); |
130 | thread->params = Nullsv; |
3deee5e7 |
131 | destroyperl = thread->interp; |
68795e93 |
132 | thread->interp = NULL; |
133 | } |
d1400e48 |
134 | MUTEX_UNLOCK(&thread->mutex); |
1c3adb19 |
135 | MUTEX_DESTROY(&thread->mutex); |
136 | PerlMemShared_free(thread); |
3deee5e7 |
137 | if(destroyperl) { |
138 | perl_destruct(destroyperl); |
139 | perl_free(destroyperl); |
140 | } |
64821230 |
141 | PERL_SET_CONTEXT(aTHX); |
68795e93 |
142 | } |
143 | |
62375a60 |
144 | int |
145 | Perl_ithread_hook(pTHX) |
146 | { |
147 | int veto_cleanup = 0; |
148 | MUTEX_LOCK(&create_destruct_mutex); |
149 | if (aTHX == PL_curinterp && active_threads != 1) { |
c133c03f |
150 | Perl_warn(aTHX_ "A thread exited while %" IVdf " other threads were still running", |
436c6dd3 |
151 | (IV)active_threads); |
62375a60 |
152 | veto_cleanup = 1; |
153 | } |
154 | MUTEX_UNLOCK(&create_destruct_mutex); |
155 | return veto_cleanup; |
156 | } |
157 | |
158 | void |
159 | Perl_ithread_detach(pTHX_ ithread *thread) |
160 | { |
161 | MUTEX_LOCK(&thread->mutex); |
162 | if (!(thread->state & (PERL_ITHR_DETACHED|PERL_ITHR_JOINED))) { |
163 | thread->state |= PERL_ITHR_DETACHED; |
164 | #ifdef WIN32 |
165 | CloseHandle(thread->handle); |
166 | thread->handle = 0; |
167 | #else |
168 | PERL_THREAD_DETACH(thread->thr); |
169 | #endif |
170 | } |
171 | if ((thread->state & PERL_ITHR_FINISHED) && |
172 | (thread->state & PERL_ITHR_DETACHED)) { |
173 | MUTEX_UNLOCK(&thread->mutex); |
174 | Perl_ithread_destruct(aTHX_ thread, "detach"); |
175 | } |
176 | else { |
177 | MUTEX_UNLOCK(&thread->mutex); |
178 | } |
179 | } |
68795e93 |
180 | |
181 | /* MAGIC (in mg.h sense) hooks */ |
182 | |
183 | int |
184 | ithread_mg_get(pTHX_ SV *sv, MAGIC *mg) |
185 | { |
186 | ithread *thread = (ithread *) mg->mg_ptr; |
187 | SvIVX(sv) = PTR2IV(thread); |
188 | SvIOK_on(sv); |
189 | return 0; |
190 | } |
191 | |
192 | int |
193 | ithread_mg_free(pTHX_ SV *sv, MAGIC *mg) |
194 | { |
195 | ithread *thread = (ithread *) mg->mg_ptr; |
196 | MUTEX_LOCK(&thread->mutex); |
68795e93 |
197 | thread->count--; |
62375a60 |
198 | if (thread->count == 0) { |
1c3adb19 |
199 | if(thread->state & PERL_ITHR_FINISHED && |
200 | (thread->state & PERL_ITHR_DETACHED || |
201 | thread->state & PERL_ITHR_JOINED)) |
202 | { |
203 | MUTEX_UNLOCK(&thread->mutex); |
204 | Perl_ithread_destruct(aTHX_ thread, "no reference"); |
205 | } |
1ea20f42 |
206 | else { |
207 | MUTEX_UNLOCK(&thread->mutex); |
208 | } |
62375a60 |
209 | } |
210 | else { |
211 | MUTEX_UNLOCK(&thread->mutex); |
212 | } |
68795e93 |
213 | return 0; |
214 | } |
215 | |
216 | int |
217 | ithread_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *param) |
218 | { |
219 | ithread *thread = (ithread *) mg->mg_ptr; |
220 | MUTEX_LOCK(&thread->mutex); |
68795e93 |
221 | thread->count++; |
222 | MUTEX_UNLOCK(&thread->mutex); |
223 | return 0; |
224 | } |
225 | |
226 | MGVTBL ithread_vtbl = { |
227 | ithread_mg_get, /* get */ |
228 | 0, /* set */ |
229 | 0, /* len */ |
230 | 0, /* clear */ |
231 | ithread_mg_free, /* free */ |
232 | 0, /* copy */ |
233 | ithread_mg_dup /* dup */ |
234 | }; |
235 | |
47ba8780 |
236 | |
47ba8780 |
237 | /* |
b1edfb69 |
238 | * Starts executing the thread. Needs to clean up memory a tad better. |
68795e93 |
239 | * Passed as the C level function to run in the new thread |
b1edfb69 |
240 | */ |
47ba8780 |
241 | |
242 | #ifdef WIN32 |
68795e93 |
243 | THREAD_RET_TYPE |
244 | Perl_ithread_run(LPVOID arg) { |
47ba8780 |
245 | #else |
68795e93 |
246 | void* |
247 | Perl_ithread_run(void * arg) { |
47ba8780 |
248 | #endif |
5b414d21 |
249 | ithread* thread = (ithread*) arg; |
47ba8780 |
250 | dTHXa(thread->interp); |
47ba8780 |
251 | PERL_SET_CONTEXT(thread->interp); |
68795e93 |
252 | PERL_THREAD_SETSPECIFIC(self_key,thread); |
47ba8780 |
253 | |
68795e93 |
254 | #if 0 |
255 | /* Far from clear messing with ->thr child-side is a good idea */ |
256 | MUTEX_LOCK(&thread->mutex); |
47ba8780 |
257 | #ifdef WIN32 |
258 | thread->thr = GetCurrentThreadId(); |
259 | #else |
260 | thread->thr = pthread_self(); |
261 | #endif |
68795e93 |
262 | MUTEX_UNLOCK(&thread->mutex); |
263 | #endif |
47ba8780 |
264 | |
47ba8780 |
265 | PL_perl_destruct_level = 2; |
4f896ddc |
266 | |
47ba8780 |
267 | { |
68795e93 |
268 | AV* params = (AV*) SvRV(thread->params); |
269 | I32 len = av_len(params)+1; |
47ba8780 |
270 | int i; |
271 | dSP; |
47ba8780 |
272 | ENTER; |
273 | SAVETMPS; |
274 | PUSHMARK(SP); |
68795e93 |
275 | for(i = 0; i < len; i++) { |
276 | XPUSHs(av_shift(params)); |
47ba8780 |
277 | } |
278 | PUTBACK; |
a446a88f |
279 | len = call_sv(thread->init_function, thread->gimme|G_EVAL); |
68795e93 |
280 | SPAGAIN; |
a446a88f |
281 | for (i=len-1; i >= 0; i--) { |
e1c44605 |
282 | SV *sv = POPs; |
283 | av_store(params, i, SvREFCNT_inc(sv)); |
a446a88f |
284 | } |
285 | PUTBACK; |
286 | if (SvTRUE(ERRSV)) { |
6b3c7930 |
287 | Perl_warn(aTHX_ "thread failed to start: %" SVf, ERRSV); |
a446a88f |
288 | } |
47ba8780 |
289 | FREETMPS; |
290 | LEAVE; |
68795e93 |
291 | SvREFCNT_dec(thread->init_function); |
47ba8780 |
292 | } |
293 | |
fd58862f |
294 | PerlIO_flush((PerlIO*)NULL); |
68795e93 |
295 | MUTEX_LOCK(&thread->mutex); |
62375a60 |
296 | thread->state |= PERL_ITHR_FINISHED; |
297 | |
298 | if (thread->state & PERL_ITHR_DETACHED) { |
47ba8780 |
299 | MUTEX_UNLOCK(&thread->mutex); |
62375a60 |
300 | Perl_ithread_destruct(aTHX_ thread, "detached finish"); |
47ba8780 |
301 | } else { |
62375a60 |
302 | MUTEX_UNLOCK(&thread->mutex); |
303 | } |
91604d21 |
304 | MUTEX_LOCK(&create_destruct_mutex); |
305 | active_threads--; |
306 | assert( active_threads >= 0 ); |
307 | MUTEX_UNLOCK(&create_destruct_mutex); |
308 | |
47ba8780 |
309 | #ifdef WIN32 |
310 | return (DWORD)0; |
e8f2bb9a |
311 | #else |
312 | return 0; |
47ba8780 |
313 | #endif |
68795e93 |
314 | } |
315 | |
316 | SV * |
317 | ithread_to_SV(pTHX_ SV *obj, ithread *thread, char *classname, bool inc) |
318 | { |
319 | SV *sv; |
320 | MAGIC *mg; |
321 | if (inc) { |
322 | MUTEX_LOCK(&thread->mutex); |
323 | thread->count++; |
68795e93 |
324 | MUTEX_UNLOCK(&thread->mutex); |
325 | } |
326 | if (!obj) |
327 | obj = newSV(0); |
328 | sv = newSVrv(obj,classname); |
329 | sv_setiv(sv,PTR2IV(thread)); |
330 | mg = sv_magicext(sv,Nullsv,PERL_MAGIC_shared_scalar,&ithread_vtbl,(char *)thread,0); |
331 | mg->mg_flags |= MGf_DUP; |
332 | SvREADONLY_on(sv); |
333 | return obj; |
334 | } |
47ba8780 |
335 | |
68795e93 |
336 | ithread * |
337 | SV_to_ithread(pTHX_ SV *sv) |
338 | { |
339 | ithread *thread; |
340 | if (SvROK(sv)) |
341 | { |
342 | thread = INT2PTR(ithread*, SvIV(SvRV(sv))); |
343 | } |
344 | else |
345 | { |
346 | PERL_THREAD_GETSPECIFIC(self_key,thread); |
347 | } |
348 | return thread; |
47ba8780 |
349 | } |
350 | |
47ba8780 |
351 | /* |
68795e93 |
352 | * iThread->create(); ( aka iThread->new() ) |
353 | * Called in context of parent thread |
b1edfb69 |
354 | */ |
47ba8780 |
355 | |
68795e93 |
356 | SV * |
357 | Perl_ithread_create(pTHX_ SV *obj, char* classname, SV* init_function, SV* params) |
358 | { |
359 | ithread* thread; |
360 | CLONE_PARAMS clone_param; |
361 | |
58c2ef19 |
362 | MUTEX_LOCK(&create_destruct_mutex); |
68795e93 |
363 | thread = PerlMemShared_malloc(sizeof(ithread)); |
364 | Zero(thread,1,ithread); |
365 | thread->next = threads; |
366 | thread->prev = threads->prev; |
f42ad631 |
367 | threads->prev = thread; |
68795e93 |
368 | thread->prev->next = thread; |
369 | /* Set count to 1 immediately in case thread exits before |
370 | * we return to caller ! |
371 | */ |
372 | thread->count = 1; |
373 | MUTEX_INIT(&thread->mutex); |
374 | thread->tid = tid_counter++; |
a446a88f |
375 | thread->gimme = GIMME_V; |
4f896ddc |
376 | |
68795e93 |
377 | /* "Clone" our interpreter into the thread's interpreter |
378 | * This gives thread access to "static data" and code. |
379 | */ |
47ba8780 |
380 | |
68795e93 |
381 | PerlIO_flush((PerlIO*)NULL); |
cd8c9bf8 |
382 | |
47ba8780 |
383 | #ifdef WIN32 |
68795e93 |
384 | thread->interp = perl_clone(aTHX, CLONEf_KEEP_PTR_TABLE | CLONEf_CLONE_HOST); |
47ba8780 |
385 | #else |
68795e93 |
386 | thread->interp = perl_clone(aTHX, CLONEf_KEEP_PTR_TABLE); |
47ba8780 |
387 | #endif |
ba14dd9a |
388 | /* perl_clone leaves us in new interpreter's context. |
389 | As it is tricky to spot implcit aTHX create a new scope |
a446a88f |
390 | with aTHX matching the context for the duration of |
ba14dd9a |
391 | our work for new interpreter. |
392 | */ |
393 | { |
394 | dTHXa(thread->interp); |
58c2ef19 |
395 | /* Here we remove END blocks since they should only run |
62375a60 |
396 | in the thread they are created |
58c2ef19 |
397 | */ |
398 | SvREFCNT_dec(PL_endav); |
399 | PL_endav = newAV(); |
d1400e48 |
400 | clone_param.flags = 0; |
ba14dd9a |
401 | thread->init_function = sv_dup(init_function, &clone_param); |
402 | if (SvREFCNT(thread->init_function) == 0) { |
403 | SvREFCNT_inc(thread->init_function); |
d1400e48 |
404 | } |
ba14dd9a |
405 | |
406 | thread->params = sv_dup(params, &clone_param); |
407 | SvREFCNT_inc(thread->params); |
408 | SvTEMP_off(thread->init_function); |
409 | ptr_table_free(PL_ptr_table); |
410 | PL_ptr_table = NULL; |
ffb29f90 |
411 | PL_exit_flags |= PERL_EXIT_DESTRUCT_END; |
ba14dd9a |
412 | } |
d1400e48 |
413 | |
68795e93 |
414 | PERL_SET_CONTEXT(aTHX); |
47ba8780 |
415 | |
68795e93 |
416 | /* Start the thread */ |
47ba8780 |
417 | |
418 | #ifdef WIN32 |
419 | |
68795e93 |
420 | thread->handle = CreateThread(NULL, 0, Perl_ithread_run, |
47ba8780 |
421 | (LPVOID)thread, 0, &thread->thr); |
422 | |
82c40bf6 |
423 | #else |
fa26028c |
424 | { |
425 | static pthread_attr_t attr; |
426 | static int attr_inited = 0; |
fa26028c |
427 | static int attr_joinable = PTHREAD_CREATE_JOINABLE; |
428 | if (!attr_inited) { |
429 | attr_inited = 1; |
430 | pthread_attr_init(&attr); |
431 | } |
432 | # ifdef PTHREAD_ATTR_SETDETACHSTATE |
433 | PTHREAD_ATTR_SETDETACHSTATE(&attr, attr_joinable); |
434 | # endif |
3eb37d38 |
435 | # ifdef THREAD_CREATE_NEEDS_STACK |
436 | if(pthread_attr_setstacksize(&attr, THREAD_CREATE_NEEDS_STACK)) |
437 | croak("panic: pthread_attr_setstacksize failed"); |
438 | # endif |
439 | |
3ad0b7d6 |
440 | #ifdef OLD_PTHREADS_API |
68795e93 |
441 | pthread_create( &thread->thr, attr, Perl_ithread_run, (void *)thread); |
47ba8780 |
442 | #else |
68795e93 |
443 | pthread_create( &thread->thr, &attr, Perl_ithread_run, (void *)thread); |
47ba8780 |
444 | #endif |
3ad0b7d6 |
445 | } |
82c40bf6 |
446 | #endif |
62375a60 |
447 | known_threads++; |
58c2ef19 |
448 | active_threads++; |
449 | MUTEX_UNLOCK(&create_destruct_mutex); |
95393226 |
450 | sv_2mortal(params); |
68795e93 |
451 | return ithread_to_SV(aTHX_ obj, thread, classname, FALSE); |
452 | } |
47ba8780 |
453 | |
68795e93 |
454 | SV* |
455 | Perl_ithread_self (pTHX_ SV *obj, char* Class) |
456 | { |
457 | ithread *thread; |
458 | PERL_THREAD_GETSPECIFIC(self_key,thread); |
459 | return ithread_to_SV(aTHX_ obj, thread, Class, TRUE); |
47ba8780 |
460 | } |
461 | |
462 | /* |
e1c44605 |
463 | * Joins the thread this code needs to take the returnvalue from the |
68795e93 |
464 | * call_sv and send it back |
b1edfb69 |
465 | */ |
47ba8780 |
466 | |
68795e93 |
467 | void |
468 | Perl_ithread_CLONE(pTHX_ SV *obj) |
469 | { |
470 | if (SvROK(obj)) |
471 | { |
472 | ithread *thread = SV_to_ithread(aTHX_ obj); |
473 | } |
474 | else |
475 | { |
436c6dd3 |
476 | Perl_warn(aTHX_ "CLONE %" SVf,obj); |
68795e93 |
477 | } |
47ba8780 |
478 | } |
479 | |
62375a60 |
480 | AV* |
68795e93 |
481 | Perl_ithread_join(pTHX_ SV *obj) |
482 | { |
483 | ithread *thread = SV_to_ithread(aTHX_ obj); |
484 | MUTEX_LOCK(&thread->mutex); |
62375a60 |
485 | if (thread->state & PERL_ITHR_DETACHED) { |
a446a88f |
486 | MUTEX_UNLOCK(&thread->mutex); |
487 | Perl_croak(aTHX_ "Cannot join a detached thread"); |
488 | } |
62375a60 |
489 | else if (thread->state & PERL_ITHR_JOINED) { |
a446a88f |
490 | MUTEX_UNLOCK(&thread->mutex); |
491 | Perl_croak(aTHX_ "Thread already joined"); |
492 | } |
493 | else { |
e1c44605 |
494 | AV* retparam; |
47ba8780 |
495 | #ifdef WIN32 |
496 | DWORD waitcode; |
47ba8780 |
497 | #else |
498 | void *retval; |
47ba8780 |
499 | #endif |
47ba8780 |
500 | MUTEX_UNLOCK(&thread->mutex); |
68795e93 |
501 | #ifdef WIN32 |
502 | waitcode = WaitForSingleObject(thread->handle, INFINITE); |
503 | #else |
504 | pthread_join(thread->thr,&retval); |
505 | #endif |
47ba8780 |
506 | MUTEX_LOCK(&thread->mutex); |
e1c44605 |
507 | |
62375a60 |
508 | /* sv_dup over the args */ |
e1c44605 |
509 | { |
62375a60 |
510 | AV* params = (AV*) SvRV(thread->params); |
e1c44605 |
511 | CLONE_PARAMS clone_params; |
3275ba96 |
512 | clone_params.stashes = newAV(); |
e1c44605 |
513 | PL_ptr_table = ptr_table_new(); |
514 | retparam = (AV*) sv_dup((SV*)params, &clone_params); |
3275ba96 |
515 | SvREFCNT_dec(clone_params.stashes); |
e1c44605 |
516 | SvREFCNT_inc(retparam); |
517 | ptr_table_free(PL_ptr_table); |
518 | PL_ptr_table = NULL; |
519 | |
520 | } |
a446a88f |
521 | /* We have finished with it */ |
62375a60 |
522 | thread->state |= PERL_ITHR_JOINED; |
47ba8780 |
523 | MUTEX_UNLOCK(&thread->mutex); |
9684265f |
524 | sv_unmagic(SvRV(obj),PERL_MAGIC_shared_scalar); |
e1c44605 |
525 | return retparam; |
68795e93 |
526 | } |
e1c44605 |
527 | return (AV*)NULL; |
47ba8780 |
528 | } |
529 | |
68795e93 |
530 | void |
68795e93 |
531 | Perl_ithread_DESTROY(pTHX_ SV *sv) |
532 | { |
533 | ithread *thread = SV_to_ithread(aTHX_ sv); |
68795e93 |
534 | sv_unmagic(SvRV(sv),PERL_MAGIC_shared_scalar); |
535 | } |
8222d950 |
536 | |
73e09c8f |
537 | #endif /* USE_ITHREADS */ |
e1c44605 |
538 | |
68795e93 |
539 | MODULE = threads PACKAGE = threads PREFIX = ithread_ |
540 | PROTOTYPES: DISABLE |
8222d950 |
541 | |
73e09c8f |
542 | #ifdef USE_ITHREADS |
543 | |
68795e93 |
544 | void |
545 | ithread_new (classname, function_to_call, ...) |
546 | char * classname |
547 | SV * function_to_call |
548 | CODE: |
549 | { |
550 | AV* params = newAV(); |
551 | if (items > 2) { |
552 | int i; |
553 | for(i = 2; i < items ; i++) { |
95393226 |
554 | av_push(params, SvREFCNT_inc(ST(i))); |
68795e93 |
555 | } |
556 | } |
557 | ST(0) = sv_2mortal(Perl_ithread_create(aTHX_ Nullsv, classname, function_to_call, newRV_noinc((SV*) params))); |
558 | XSRETURN(1); |
559 | } |
8222d950 |
560 | |
68795e93 |
561 | void |
678a9b6c |
562 | ithread_list(char *classname) |
563 | PPCODE: |
564 | { |
565 | ithread *curr_thread; |
566 | MUTEX_LOCK(&create_destruct_mutex); |
567 | curr_thread = threads; |
5eb9fe8f |
568 | if(curr_thread->tid != 0) |
569 | PUSHs( sv_2mortal(ithread_to_SV(aTHX_ NULL, curr_thread, classname, TRUE))); |
678a9b6c |
570 | while(curr_thread) { |
678a9b6c |
571 | curr_thread = curr_thread->next; |
572 | if(curr_thread == threads) |
573 | break; |
6794f985 |
574 | if(curr_thread->state & PERL_ITHR_DETACHED || |
5eb9fe8f |
575 | curr_thread->state & PERL_ITHR_JOINED) |
576 | continue; |
577 | PUSHs( sv_2mortal(ithread_to_SV(aTHX_ NULL, curr_thread, classname, TRUE))); |
678a9b6c |
578 | } |
579 | MUTEX_UNLOCK(&create_destruct_mutex); |
580 | } |
581 | |
582 | |
583 | void |
68795e93 |
584 | ithread_self(char *classname) |
585 | CODE: |
586 | { |
587 | ST(0) = sv_2mortal(Perl_ithread_self(aTHX_ Nullsv,classname)); |
588 | XSRETURN(1); |
589 | } |
47ba8780 |
590 | |
591 | int |
68795e93 |
592 | ithread_tid(ithread *thread) |
47ba8780 |
593 | |
594 | void |
68795e93 |
595 | ithread_join(SV *obj) |
e1c44605 |
596 | PPCODE: |
597 | { |
598 | AV* params = Perl_ithread_join(aTHX_ obj); |
599 | int i; |
600 | I32 len = AvFILL(params); |
601 | for (i = 0; i <= len; i++) { |
1c3adb19 |
602 | SV* tmp = av_shift(params); |
603 | XPUSHs(tmp); |
604 | sv_2mortal(tmp); |
e1c44605 |
605 | } |
606 | SvREFCNT_dec(params); |
607 | } |
608 | |
f9dff5f5 |
609 | void |
9d7debe1 |
610 | yield(...) |
70f2e746 |
611 | CODE: |
612 | { |
613 | YIELD; |
614 | } |
615 | |
47ba8780 |
616 | |
617 | void |
68795e93 |
618 | ithread_detach(ithread *thread) |
47ba8780 |
619 | |
47ba8780 |
620 | void |
68795e93 |
621 | ithread_DESTROY(SV *thread) |
622 | |
73e09c8f |
623 | #endif /* USE_ITHREADS */ |
624 | |
68795e93 |
625 | BOOT: |
626 | { |
73e09c8f |
627 | #ifdef USE_ITHREADS |
68795e93 |
628 | ithread* thread; |
e1c44605 |
629 | PL_perl_destruct_level = 2; |
68795e93 |
630 | PERL_THREAD_ALLOC_SPECIFIC(self_key); |
58c2ef19 |
631 | MUTEX_INIT(&create_destruct_mutex); |
632 | MUTEX_LOCK(&create_destruct_mutex); |
62375a60 |
633 | PL_threadhook = &Perl_ithread_hook; |
68795e93 |
634 | thread = PerlMemShared_malloc(sizeof(ithread)); |
635 | Zero(thread,1,ithread); |
636 | PL_perl_destruct_level = 2; |
637 | MUTEX_INIT(&thread->mutex); |
638 | threads = thread; |
639 | thread->next = thread; |
640 | thread->prev = thread; |
641 | thread->interp = aTHX; |
642 | thread->count = 1; /* imortal */ |
643 | thread->tid = tid_counter++; |
62375a60 |
644 | known_threads++; |
58c2ef19 |
645 | active_threads++; |
62375a60 |
646 | thread->state = 1; |
68795e93 |
647 | #ifdef WIN32 |
648 | thread->thr = GetCurrentThreadId(); |
649 | #else |
650 | thread->thr = pthread_self(); |
651 | #endif |
62375a60 |
652 | |
68795e93 |
653 | PERL_THREAD_SETSPECIFIC(self_key,thread); |
58c2ef19 |
654 | MUTEX_UNLOCK(&create_destruct_mutex); |
73e09c8f |
655 | #endif /* USE_ITHREADS */ |
68795e93 |
656 | } |
657 | |