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