Commit | Line | Data |
68795e93 |
1 | #define PERL_NO_GET_CONTEXT |
2 | #include "EXTERN.h" |
3 | #include "perl.h" |
4 | #include "XSUB.h" |
4dcb9e53 |
5 | /* Workaround for XSUB.h bug under WIN32 */ |
6 | #ifdef WIN32 |
7 | # undef setjmp |
c608f8c0 |
8 | # if !defined(__BORLANDC__) |
9 | # define setjmp(x) _setjmp(x) |
10 | # endif |
4dcb9e53 |
11 | #endif |
0f1612a7 |
12 | #ifdef HAS_PPPORT_H |
404aaa48 |
13 | # define NEED_PL_signals |
0f1612a7 |
14 | # define NEED_newRV_noinc |
15 | # define NEED_sv_2pv_nolen |
16 | # include "ppport.h" |
17 | # include "threads.h" |
18 | #endif |
68795e93 |
19 | |
73e09c8f |
20 | #ifdef USE_ITHREADS |
21 | |
68795e93 |
22 | #ifdef WIN32 |
fc04eb16 |
23 | # include <windows.h> |
514612b7 |
24 | /* Supposed to be in Winbase.h */ |
25 | # ifndef STACK_SIZE_PARAM_IS_A_RESERVATION |
26 | # define STACK_SIZE_PARAM_IS_A_RESERVATION 0x00010000 |
27 | # endif |
fc04eb16 |
28 | # include <win32thread.h> |
68795e93 |
29 | #else |
fc04eb16 |
30 | # ifdef OS2 |
5c728af0 |
31 | typedef perl_os_thread pthread_t; |
fc04eb16 |
32 | # else |
33 | # include <pthread.h> |
34 | # endif |
35 | # include <thread.h> |
36 | # define PERL_THREAD_SETSPECIFIC(k,v) pthread_setspecific(k,v) |
37 | # ifdef OLD_PTHREADS_API |
38 | # define PERL_THREAD_DETACH(t) pthread_detach(&(t)) |
39 | # else |
40 | # define PERL_THREAD_DETACH(t) pthread_detach((t)) |
41 | # endif |
467f3f08 |
42 | #endif |
d305c2c9 |
43 | #if !defined(HAS_GETPAGESIZE) && defined(I_SYS_PARAM) |
44 | # include <sys/param.h> |
45 | #endif |
68795e93 |
46 | |
62375a60 |
47 | /* Values for 'state' member */ |
6158f8b3 |
48 | #define PERL_ITHR_DETACHED 1 /* thread has been detached */ |
49 | #define PERL_ITHR_JOINED 2 /* thread has been joined */ |
50 | #define PERL_ITHR_FINISHED 4 /* thread has finished execution */ |
51 | #define PERL_ITHR_THREAD_EXIT_ONLY 8 /* exit() only exits current thread */ |
52 | #define PERL_ITHR_NONVIABLE 16 /* thread creation failed */ |
53 | #define PERL_ITHR_DIED 32 /* thread finished by dying */ |
54 | |
55 | #define PERL_ITHR_UNCALLABLE (PERL_ITHR_DETACHED|PERL_ITHR_JOINED) |
56 | |
fc04eb16 |
57 | |
58 | typedef struct _ithread { |
59 | struct _ithread *next; /* Next thread in the list */ |
60 | struct _ithread *prev; /* Prev thread in the list */ |
61 | PerlInterpreter *interp; /* The threads interpreter */ |
62 | UV tid; /* Threads module's thread id */ |
63 | perl_mutex mutex; /* Mutex for updating things in this struct */ |
6158f8b3 |
64 | int count; /* reference count. See S_ithread_create */ |
fc04eb16 |
65 | int state; /* Detached, joined, finished, etc. */ |
66 | int gimme; /* Context of create */ |
67 | SV *init_function; /* Code to run */ |
68 | SV *params; /* Args to pass function */ |
68795e93 |
69 | #ifdef WIN32 |
fc04eb16 |
70 | DWORD thr; /* OS's idea if thread id */ |
71 | HANDLE handle; /* OS's waitable handle */ |
68795e93 |
72 | #else |
fc04eb16 |
73 | pthread_t thr; /* OS's handle for the thread */ |
68795e93 |
74 | #endif |
514612b7 |
75 | IV stack_size; |
955c272e |
76 | SV *err; /* Error from abnormally terminated thread */ |
77 | char *err_class; /* Error object's classname if applicable */ |
68795e93 |
78 | } ithread; |
79 | |
fc04eb16 |
80 | |
5c6ff896 |
81 | #define MY_CXT_KEY "threads::_cxt" XS_VERSION |
628ab322 |
82 | |
83 | typedef struct { |
861d5cbe |
84 | /* Used by Perl interpreter for thread context switching */ |
85 | ithread *context; |
628ab322 |
86 | } my_cxt_t; |
87 | |
88 | START_MY_CXT |
89 | |
68795e93 |
90 | |
5c6ff896 |
91 | #define MY_POOL_KEY "threads::_pool" XS_VERSION |
68795e93 |
92 | |
5c6ff896 |
93 | typedef struct { |
94 | /* Structure for 'main' thread |
95 | * Also forms the 'base' for the doubly-linked list of threads */ |
96 | ithread main_thread; |
97 | |
98 | /* Protects the creation and destruction of threads*/ |
99 | perl_mutex create_destruct_mutex; |
100 | |
101 | UV tid_counter; |
102 | IV joinable_threads; |
103 | IV running_threads; |
104 | IV detached_threads; |
105 | IV default_stack_size; |
106 | IV page_size; |
107 | } my_pool_t; |
108 | |
109 | #define dMY_POOL \ |
110 | SV *my_pool_sv = *hv_fetch(PL_modglobal, MY_POOL_KEY, \ |
111 | sizeof(MY_POOL_KEY)-1, TRUE); \ |
112 | my_pool_t *my_poolp = INT2PTR(my_pool_t*, SvUV(my_pool_sv)) |
113 | |
114 | #define MY_POOL (*my_poolp) |
c05ae023 |
115 | |
116 | |
fc04eb16 |
117 | /* Used by Perl interpreter for thread context switching */ |
861d5cbe |
118 | STATIC void |
fc04eb16 |
119 | S_ithread_set(pTHX_ ithread *thread) |
c05ae023 |
120 | { |
628ab322 |
121 | dMY_CXT; |
861d5cbe |
122 | MY_CXT.context = thread; |
c05ae023 |
123 | } |
124 | |
861d5cbe |
125 | STATIC ithread * |
fc04eb16 |
126 | S_ithread_get(pTHX) |
127 | { |
628ab322 |
128 | dMY_CXT; |
861d5cbe |
129 | return (MY_CXT.context); |
c05ae023 |
130 | } |
131 | |
132 | |
fc04eb16 |
133 | /* Free any data (such as the Perl interpreter) attached to an ithread |
134 | * structure. This is a bit like undef on SVs, where the SV isn't freed, |
135 | * but the PVX is. Must be called with thread->mutex already held. |
2e676467 |
136 | */ |
861d5cbe |
137 | STATIC void |
fc04eb16 |
138 | S_ithread_clear(pTHX_ ithread *thread) |
2e676467 |
139 | { |
140 | PerlInterpreter *interp; |
fc04eb16 |
141 | |
adc09a0e |
142 | assert(((thread->state & PERL_ITHR_FINISHED) && |
8718f9a1 |
143 | (thread->state & PERL_ITHR_UNCALLABLE)) |
adc09a0e |
144 | || |
145 | (thread->state & PERL_ITHR_NONVIABLE)); |
2e676467 |
146 | |
147 | interp = thread->interp; |
148 | if (interp) { |
fc04eb16 |
149 | dTHXa(interp); |
150 | |
151 | PERL_SET_CONTEXT(interp); |
152 | S_ithread_set(aTHX_ thread); |
f2cba68d |
153 | |
fc04eb16 |
154 | SvREFCNT_dec(thread->params); |
155 | thread->params = Nullsv; |
2e676467 |
156 | |
955c272e |
157 | if (thread->err) { |
158 | SvREFCNT_dec(thread->err); |
159 | thread->err = Nullsv; |
160 | } |
161 | |
fc04eb16 |
162 | perl_destruct(interp); |
9ca4d7fd |
163 | perl_free(interp); |
fc04eb16 |
164 | thread->interp = NULL; |
2e676467 |
165 | } |
fc04eb16 |
166 | |
2e676467 |
167 | PERL_SET_CONTEXT(aTHX); |
168 | } |
169 | |
68795e93 |
170 | |
6158f8b3 |
171 | /* Decrement the refcount of an ithread, and if it reaches zero, free it. |
172 | * Must be called with the mutex held. |
173 | * On return, mutex is released (or destroyed) */ |
174 | |
861d5cbe |
175 | STATIC void |
6158f8b3 |
176 | S_ithread_free(pTHX_ ithread *thread) |
68795e93 |
177 | { |
385d56e4 |
178 | #ifdef WIN32 |
fc04eb16 |
179 | HANDLE handle; |
385d56e4 |
180 | #endif |
adc09a0e |
181 | dMY_POOL; |
182 | |
6158f8b3 |
183 | if (! (thread->state & PERL_ITHR_NONVIABLE)) { |
184 | assert(thread->count > 0); |
185 | if (--thread->count > 0) { |
186 | MUTEX_UNLOCK(&thread->mutex); |
187 | return; |
188 | } |
189 | assert((thread->state & PERL_ITHR_FINISHED) |
190 | && (thread->state & PERL_ITHR_UNCALLABLE)); |
fc04eb16 |
191 | } |
adc09a0e |
192 | MUTEX_UNLOCK(&thread->mutex); |
9feacc09 |
193 | |
fc04eb16 |
194 | /* Main thread (0) is immortal and should never get here */ |
195 | assert(thread->tid != 0); |
196 | |
197 | /* Remove from circular list of threads */ |
5c6ff896 |
198 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
adc09a0e |
199 | assert(thread->prev && thread->next); |
200 | thread->next->prev = thread->prev; |
201 | thread->prev->next = thread->next; |
fc04eb16 |
202 | thread->next = NULL; |
203 | thread->prev = NULL; |
5c6ff896 |
204 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
c2f2a82b |
205 | |
fc04eb16 |
206 | /* Thread is now disowned */ |
9ca4d7fd |
207 | MUTEX_LOCK(&thread->mutex); |
fc04eb16 |
208 | S_ithread_clear(aTHX_ thread); |
385d56e4 |
209 | |
210 | #ifdef WIN32 |
fc04eb16 |
211 | handle = thread->handle; |
212 | thread->handle = NULL; |
385d56e4 |
213 | #endif |
fc04eb16 |
214 | MUTEX_UNLOCK(&thread->mutex); |
215 | MUTEX_DESTROY(&thread->mutex); |
385d56e4 |
216 | |
c7667023 |
217 | #ifdef WIN32 |
fea7688c |
218 | if (handle) { |
fc04eb16 |
219 | CloseHandle(handle); |
fea7688c |
220 | } |
c7667023 |
221 | #endif |
385d56e4 |
222 | |
fc04eb16 |
223 | /* Call PerlMemShared_free() in the context of the "first" interpreter |
224 | * per http://www.nntp.perl.org/group/perl.perl5.porters/110772 |
225 | */ |
5c6ff896 |
226 | aTHX = MY_POOL.main_thread.interp; |
fc04eb16 |
227 | PerlMemShared_free(thread); |
68795e93 |
228 | } |
229 | |
fc04eb16 |
230 | |
6158f8b3 |
231 | |
232 | static void |
233 | S_ithread_count_inc(pTHX_ ithread *thread) |
234 | { |
235 | MUTEX_LOCK(&thread->mutex); |
236 | thread->count++; |
237 | MUTEX_UNLOCK(&thread->mutex); |
238 | } |
239 | |
240 | |
241 | |
69a9b4b8 |
242 | /* Warn if exiting with any unjoined threads */ |
861d5cbe |
243 | STATIC int |
69a9b4b8 |
244 | S_exit_warning(pTHX) |
62375a60 |
245 | { |
60bd5ef6 |
246 | int veto_cleanup; |
adc09a0e |
247 | dMY_POOL; |
69a9b4b8 |
248 | |
5c6ff896 |
249 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
250 | veto_cleanup = (MY_POOL.running_threads || MY_POOL.joinable_threads); |
251 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
60bd5ef6 |
252 | |
253 | if (veto_cleanup) { |
fc04eb16 |
254 | if (ckWARN_d(WARN_THREADS)) { |
4dcb9e53 |
255 | Perl_warn(aTHX_ "Perl exited with active threads:\n\t%" |
256 | IVdf " running and unjoined\n\t%" |
257 | IVdf " finished and unjoined\n\t%" |
258 | IVdf " running and detached\n", |
5c6ff896 |
259 | MY_POOL.running_threads, |
260 | MY_POOL.joinable_threads, |
261 | MY_POOL.detached_threads); |
fc04eb16 |
262 | } |
62375a60 |
263 | } |
69a9b4b8 |
264 | |
fc04eb16 |
265 | return (veto_cleanup); |
62375a60 |
266 | } |
267 | |
69a9b4b8 |
268 | /* Called on exit from main thread */ |
269 | int |
270 | Perl_ithread_hook(pTHX) |
271 | { |
5c6ff896 |
272 | dMY_POOL; |
b5c80a23 |
273 | return ((aTHX == MY_POOL.main_thread.interp) ? S_exit_warning(aTHX) : 0); |
69a9b4b8 |
274 | } |
275 | |
68795e93 |
276 | |
277 | /* MAGIC (in mg.h sense) hooks */ |
278 | |
279 | int |
280 | ithread_mg_get(pTHX_ SV *sv, MAGIC *mg) |
281 | { |
fc04eb16 |
282 | ithread *thread = (ithread *)mg->mg_ptr; |
45977657 |
283 | SvIV_set(sv, PTR2IV(thread)); |
68795e93 |
284 | SvIOK_on(sv); |
fc04eb16 |
285 | return (0); |
68795e93 |
286 | } |
287 | |
288 | int |
289 | ithread_mg_free(pTHX_ SV *sv, MAGIC *mg) |
290 | { |
f2cba68d |
291 | ithread *thread = (ithread *)mg->mg_ptr; |
68795e93 |
292 | MUTEX_LOCK(&thread->mutex); |
6158f8b3 |
293 | S_ithread_free(aTHX_ thread); /* releases MUTEX */ |
fc04eb16 |
294 | return (0); |
68795e93 |
295 | } |
296 | |
6158f8b3 |
297 | |
68795e93 |
298 | int |
299 | ithread_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *param) |
300 | { |
6158f8b3 |
301 | S_ithread_count_inc(aTHX_ (ithread *)mg->mg_ptr); |
fc04eb16 |
302 | return (0); |
68795e93 |
303 | } |
304 | |
305 | MGVTBL ithread_vtbl = { |
fc04eb16 |
306 | ithread_mg_get, /* get */ |
307 | 0, /* set */ |
308 | 0, /* len */ |
309 | 0, /* clear */ |
310 | ithread_mg_free, /* free */ |
311 | 0, /* copy */ |
312 | ithread_mg_dup /* dup */ |
68795e93 |
313 | }; |
314 | |
47ba8780 |
315 | |
514612b7 |
316 | /* Provided default, minimum and rational stack sizes */ |
861d5cbe |
317 | STATIC IV |
318 | S_good_stack_size(pTHX_ IV stack_size) |
514612b7 |
319 | { |
5c6ff896 |
320 | dMY_POOL; |
321 | |
514612b7 |
322 | /* Use default stack size if no stack size specified */ |
fea7688c |
323 | if (! stack_size) { |
5c6ff896 |
324 | return (MY_POOL.default_stack_size); |
fea7688c |
325 | } |
514612b7 |
326 | |
327 | #ifdef PTHREAD_STACK_MIN |
328 | /* Can't use less than minimum */ |
329 | if (stack_size < PTHREAD_STACK_MIN) { |
4dcb9e53 |
330 | if (ckWARN(WARN_THREADS)) { |
514612b7 |
331 | Perl_warn(aTHX_ "Using minimum thread stack size of %" IVdf, (IV)PTHREAD_STACK_MIN); |
332 | } |
333 | return (PTHREAD_STACK_MIN); |
334 | } |
335 | #endif |
336 | |
337 | /* Round up to page size boundary */ |
5c6ff896 |
338 | if (MY_POOL.page_size <= 0) { |
d305c2c9 |
339 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE)) |
514612b7 |
340 | SETERRNO(0, SS_NORMAL); |
d305c2c9 |
341 | # ifdef _SC_PAGESIZE |
5c6ff896 |
342 | MY_POOL.page_size = sysconf(_SC_PAGESIZE); |
d305c2c9 |
343 | # else |
5c6ff896 |
344 | MY_POOL.page_size = sysconf(_SC_MMAP_PAGE_SIZE); |
d305c2c9 |
345 | # endif |
5c6ff896 |
346 | if ((long)MY_POOL.page_size < 0) { |
514612b7 |
347 | if (errno) { |
348 | SV * const error = get_sv("@", FALSE); |
349 | (void)SvUPGRADE(error, SVt_PV); |
350 | Perl_croak(aTHX_ "PANIC: sysconf: %s", SvPV_nolen(error)); |
351 | } else { |
352 | Perl_croak(aTHX_ "PANIC: sysconf: pagesize unknown"); |
353 | } |
354 | } |
d305c2c9 |
355 | #else |
356 | # ifdef HAS_GETPAGESIZE |
5c6ff896 |
357 | MY_POOL.page_size = getpagesize(); |
514612b7 |
358 | # else |
d305c2c9 |
359 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) |
5c6ff896 |
360 | MY_POOL.page_size = PAGESIZE; |
d305c2c9 |
361 | # else |
5c6ff896 |
362 | MY_POOL.page_size = 8192; /* A conservative default */ |
d305c2c9 |
363 | # endif |
514612b7 |
364 | # endif |
5c6ff896 |
365 | if (MY_POOL.page_size <= 0) { |
366 | Perl_croak(aTHX_ "PANIC: bad pagesize %" IVdf, (IV)MY_POOL.page_size); |
fea7688c |
367 | } |
514612b7 |
368 | #endif |
369 | } |
5c6ff896 |
370 | stack_size = ((stack_size + (MY_POOL.page_size - 1)) / MY_POOL.page_size) * MY_POOL.page_size; |
514612b7 |
371 | |
372 | return (stack_size); |
373 | } |
374 | |
375 | |
fc04eb16 |
376 | /* Starts executing the thread. |
377 | * Passed as the C level function to run in the new thread. |
b1edfb69 |
378 | */ |
47ba8780 |
379 | #ifdef WIN32 |
861d5cbe |
380 | STATIC THREAD_RET_TYPE |
fc04eb16 |
381 | S_ithread_run(LPVOID arg) |
47ba8780 |
382 | #else |
861d5cbe |
383 | STATIC void * |
fc04eb16 |
384 | S_ithread_run(void * arg) |
47ba8780 |
385 | #endif |
fc04eb16 |
386 | { |
387 | ithread *thread = (ithread *)arg; |
69a9b4b8 |
388 | int jmp_rc = 0; |
389 | I32 oldscope; |
955c272e |
390 | int exit_app = 0; /* Thread terminated using 'exit' */ |
69a9b4b8 |
391 | int exit_code = 0; |
955c272e |
392 | int died = 0; /* Thread terminated abnormally */ |
f2cba68d |
393 | |
69a9b4b8 |
394 | dJMPENV; |
395 | |
fc04eb16 |
396 | dTHXa(thread->interp); |
47ba8780 |
397 | |
5c6ff896 |
398 | dMY_POOL; |
399 | |
9ca4d7fd |
400 | /* Blocked until ->create() call finishes */ |
fc04eb16 |
401 | MUTEX_LOCK(&thread->mutex); |
fc04eb16 |
402 | MUTEX_UNLOCK(&thread->mutex); |
9ca4d7fd |
403 | |
404 | PERL_SET_CONTEXT(thread->interp); |
405 | S_ithread_set(aTHX_ thread); |
47ba8780 |
406 | |
fc04eb16 |
407 | PL_perl_destruct_level = 2; |
f2cba68d |
408 | |
fc04eb16 |
409 | { |
410 | AV *params = (AV *)SvRV(thread->params); |
411 | int len = (int)av_len(params)+1; |
412 | int ii; |
413 | |
414 | dSP; |
415 | ENTER; |
416 | SAVETMPS; |
417 | |
418 | /* Put args on the stack */ |
419 | PUSHMARK(SP); |
420 | for (ii=0; ii < len; ii++) { |
421 | XPUSHs(av_shift(params)); |
422 | } |
423 | PUTBACK; |
424 | |
4dcb9e53 |
425 | oldscope = PL_scopestack_ix; |
426 | JMPENV_PUSH(jmp_rc); |
427 | if (jmp_rc == 0) { |
428 | /* Run the specified function */ |
429 | len = (int)call_sv(thread->init_function, thread->gimme|G_EVAL); |
430 | } else if (jmp_rc == 2) { |
69a9b4b8 |
431 | /* Thread exited */ |
432 | exit_app = 1; |
433 | exit_code = STATUS_CURRENT; |
4dcb9e53 |
434 | while (PL_scopestack_ix > oldscope) { |
435 | LEAVE; |
436 | } |
437 | } |
438 | JMPENV_POP; |
fc04eb16 |
439 | |
440 | /* Remove args from stack and put back in params array */ |
441 | SPAGAIN; |
442 | for (ii=len-1; ii >= 0; ii--) { |
443 | SV *sv = POPs; |
4dcb9e53 |
444 | if (jmp_rc == 0) { |
445 | av_store(params, ii, SvREFCNT_inc(sv)); |
446 | } |
fc04eb16 |
447 | } |
448 | |
4dcb9e53 |
449 | FREETMPS; |
450 | LEAVE; |
451 | |
955c272e |
452 | /* Check for abnormal termination */ |
453 | if (SvTRUE(ERRSV)) { |
454 | died = PERL_ITHR_DIED; |
455 | thread->err = newSVsv(ERRSV); |
456 | /* If ERRSV is an object, remember the classname and then |
457 | * rebless into 'main' so it will survive 'cloning' |
458 | */ |
459 | if (sv_isobject(thread->err)) { |
460 | thread->err_class = HvNAME(SvSTASH(SvRV(thread->err))); |
461 | sv_bless(thread->err, gv_stashpv("main", 0)); |
462 | } |
463 | |
464 | if (ckWARN_d(WARN_THREADS)) { |
465 | oldscope = PL_scopestack_ix; |
466 | JMPENV_PUSH(jmp_rc); |
467 | if (jmp_rc == 0) { |
468 | /* Warn that thread died */ |
469 | Perl_warn(aTHX_ "Thread %" UVuf " terminated abnormally: %" SVf, thread->tid, ERRSV); |
470 | } else if (jmp_rc == 2) { |
471 | /* Warn handler exited */ |
472 | exit_app = 1; |
473 | exit_code = STATUS_CURRENT; |
474 | while (PL_scopestack_ix > oldscope) { |
475 | LEAVE; |
476 | } |
4dcb9e53 |
477 | } |
955c272e |
478 | JMPENV_POP; |
4dcb9e53 |
479 | } |
fc04eb16 |
480 | } |
481 | |
fc04eb16 |
482 | /* Release function ref */ |
483 | SvREFCNT_dec(thread->init_function); |
484 | thread->init_function = Nullsv; |
485 | } |
62375a60 |
486 | |
fc04eb16 |
487 | PerlIO_flush((PerlIO *)NULL); |
488 | |
5c6ff896 |
489 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
fc04eb16 |
490 | MUTEX_LOCK(&thread->mutex); |
491 | /* Mark as finished */ |
955c272e |
492 | thread->state |= (PERL_ITHR_FINISHED | died); |
69a9b4b8 |
493 | /* Clear exit flag if required */ |
fea7688c |
494 | if (thread->state & PERL_ITHR_THREAD_EXIT_ONLY) { |
69a9b4b8 |
495 | exit_app = 0; |
fea7688c |
496 | } |
fc04eb16 |
497 | |
69a9b4b8 |
498 | /* Adjust thread status counts */ |
adc09a0e |
499 | if (thread->state & PERL_ITHR_DETACHED) { |
5c6ff896 |
500 | MY_POOL.detached_threads--; |
4dcb9e53 |
501 | } else { |
5c6ff896 |
502 | MY_POOL.running_threads--; |
503 | MY_POOL.joinable_threads++; |
5168baf3 |
504 | } |
adc09a0e |
505 | MUTEX_UNLOCK(&thread->mutex); |
5c6ff896 |
506 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
69a9b4b8 |
507 | |
508 | /* Exit application if required */ |
509 | if (exit_app) { |
510 | oldscope = PL_scopestack_ix; |
511 | JMPENV_PUSH(jmp_rc); |
512 | if (jmp_rc == 0) { |
513 | /* Warn if there are unjoined threads */ |
514 | S_exit_warning(aTHX); |
515 | } else if (jmp_rc == 2) { |
516 | /* Warn handler exited */ |
517 | exit_code = STATUS_CURRENT; |
518 | while (PL_scopestack_ix > oldscope) { |
519 | LEAVE; |
520 | } |
521 | } |
522 | JMPENV_POP; |
523 | |
524 | my_exit(exit_code); |
525 | } |
526 | |
6158f8b3 |
527 | MUTEX_LOCK(&thread->mutex); |
528 | S_ithread_free(aTHX_ thread); /* releases MUTEX */ |
91604d21 |
529 | |
47ba8780 |
530 | #ifdef WIN32 |
fc04eb16 |
531 | return ((DWORD)0); |
e8f2bb9a |
532 | #else |
fc04eb16 |
533 | return (0); |
47ba8780 |
534 | #endif |
68795e93 |
535 | } |
536 | |
fc04eb16 |
537 | |
538 | /* Type conversion helper functions */ |
fea7688c |
539 | |
861d5cbe |
540 | STATIC SV * |
541 | S_ithread_to_SV(pTHX_ SV *obj, ithread *thread, char *classname, bool inc) |
68795e93 |
542 | { |
543 | SV *sv; |
544 | MAGIC *mg; |
fc04eb16 |
545 | |
6158f8b3 |
546 | if (inc) |
547 | S_ithread_count_inc(aTHX_ thread); |
fc04eb16 |
548 | |
549 | if (! obj) { |
550 | obj = newSV(0); |
68795e93 |
551 | } |
fc04eb16 |
552 | |
553 | sv = newSVrv(obj, classname); |
554 | sv_setiv(sv, PTR2IV(thread)); |
555 | mg = sv_magicext(sv, Nullsv, PERL_MAGIC_shared_scalar, &ithread_vtbl, (char *)thread, 0); |
68795e93 |
556 | mg->mg_flags |= MGf_DUP; |
557 | SvREADONLY_on(sv); |
fc04eb16 |
558 | |
559 | return (obj); |
68795e93 |
560 | } |
47ba8780 |
561 | |
861d5cbe |
562 | STATIC ithread * |
563 | S_SV_to_ithread(pTHX_ SV *sv) |
68795e93 |
564 | { |
fc04eb16 |
565 | /* Argument is a thread */ |
566 | if (SvROK(sv)) { |
567 | return (INT2PTR(ithread *, SvIV(SvRV(sv)))); |
568 | } |
569 | /* Argument is classname, therefore return current thread */ |
570 | return (S_ithread_get(aTHX)); |
47ba8780 |
571 | } |
572 | |
47ba8780 |
573 | |
fc04eb16 |
574 | /* threads->create() |
575 | * Called in context of parent thread. |
5c6ff896 |
576 | * Called with MY_POOL.create_destruct_mutex locked. (Unlocked on error.) |
fc04eb16 |
577 | */ |
861d5cbe |
578 | STATIC ithread * |
fc04eb16 |
579 | S_ithread_create( |
9ca4d7fd |
580 | pTHX_ SV *init_function, |
514612b7 |
581 | IV stack_size, |
9d9ff5b1 |
582 | int gimme, |
69a9b4b8 |
583 | int exit_opt, |
fc04eb16 |
584 | SV *params) |
68795e93 |
585 | { |
fc04eb16 |
586 | ithread *thread; |
fc04eb16 |
587 | ithread *current_thread = S_ithread_get(aTHX); |
3b1c3273 |
588 | |
fc04eb16 |
589 | SV **tmps_tmp = PL_tmps_stack; |
590 | IV tmps_ix = PL_tmps_ix; |
d94006e8 |
591 | #ifndef WIN32 |
fc04eb16 |
592 | int rc_stack_size = 0; |
593 | int rc_thread_create = 0; |
d94006e8 |
594 | #endif |
adc09a0e |
595 | dMY_POOL; |
3b1c3273 |
596 | |
adc09a0e |
597 | /* Allocate thread structure in context of the main thread's interpreter */ |
5c6ff896 |
598 | { |
599 | PERL_SET_CONTEXT(MY_POOL.main_thread.interp); |
600 | thread = (ithread *)PerlMemShared_malloc(sizeof(ithread)); |
601 | } |
602 | PERL_SET_CONTEXT(aTHX); |
fc04eb16 |
603 | if (!thread) { |
5c6ff896 |
604 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
fc04eb16 |
605 | PerlLIO_write(PerlIO_fileno(Perl_error_log), PL_no_mem, strlen(PL_no_mem)); |
606 | my_exit(1); |
607 | } |
608 | Zero(thread, 1, ithread); |
609 | |
610 | /* Add to threads list */ |
5c6ff896 |
611 | thread->next = &MY_POOL.main_thread; |
612 | thread->prev = MY_POOL.main_thread.prev; |
613 | MY_POOL.main_thread.prev = thread; |
fc04eb16 |
614 | thread->prev->next = thread; |
c05ae023 |
615 | |
6158f8b3 |
616 | /* 1 ref to be held by the local var 'thread' in S_ithread_run() |
617 | * 1 ref to be held by the threads object that we assume we will |
618 | * be embedded in upon our return |
619 | * 1 ref to be the responsibility of join/detach, so we don't get freed |
620 | until join/detach, even if no thread objects remain. This |
621 | allows the following to work: |
622 | { threads->new(sub{...}); } threads->object(1)->join; |
fc04eb16 |
623 | */ |
6158f8b3 |
624 | thread->count = 3; |
fc04eb16 |
625 | |
9ca4d7fd |
626 | /* Block new thread until ->create() call finishes */ |
fc04eb16 |
627 | MUTEX_INIT(&thread->mutex); |
9ca4d7fd |
628 | MUTEX_LOCK(&thread->mutex); |
629 | |
5c6ff896 |
630 | thread->tid = MY_POOL.tid_counter++; |
861d5cbe |
631 | thread->stack_size = S_good_stack_size(aTHX_ stack_size); |
9d9ff5b1 |
632 | thread->gimme = gimme; |
69a9b4b8 |
633 | thread->state = exit_opt; |
fc04eb16 |
634 | |
635 | /* "Clone" our interpreter into the thread's interpreter. |
636 | * This gives thread access to "static data" and code. |
637 | */ |
638 | PerlIO_flush((PerlIO *)NULL); |
639 | S_ithread_set(aTHX_ thread); |
640 | |
641 | SAVEBOOL(PL_srand_called); /* Save this so it becomes the correct value */ |
642 | PL_srand_called = FALSE; /* Set it to false so we can detect if it gets |
643 | set during the clone */ |
3b1c3273 |
644 | |
47ba8780 |
645 | #ifdef WIN32 |
fc04eb16 |
646 | thread->interp = perl_clone(aTHX, CLONEf_KEEP_PTR_TABLE | CLONEf_CLONE_HOST); |
47ba8780 |
647 | #else |
fc04eb16 |
648 | thread->interp = perl_clone(aTHX, CLONEf_KEEP_PTR_TABLE); |
47ba8780 |
649 | #endif |
47ba8780 |
650 | |
fc04eb16 |
651 | /* perl_clone() leaves us in new interpreter's context. As it is tricky |
652 | * to spot an implicit aTHX, create a new scope with aTHX matching the |
653 | * context for the duration of our work for new interpreter. |
654 | */ |
655 | { |
894eec8b |
656 | CLONE_PARAMS clone_param; |
657 | |
fc04eb16 |
658 | dTHXa(thread->interp); |
659 | |
660 | MY_CXT_CLONE; |
661 | |
662 | /* Here we remove END blocks since they should only run in the thread |
663 | * they are created |
664 | */ |
665 | SvREFCNT_dec(PL_endav); |
666 | PL_endav = newAV(); |
404aaa48 |
667 | |
894eec8b |
668 | clone_param.flags = 0; |
f2e0bb91 |
669 | if (SvPOK(init_function)) { |
670 | thread->init_function = newSV(0); |
671 | sv_copypv(thread->init_function, init_function); |
672 | } else { |
f2e0bb91 |
673 | thread->init_function = sv_dup(init_function, &clone_param); |
674 | if (SvREFCNT(thread->init_function) == 0) { |
d4315dd6 |
675 | SvREFCNT_inc_void(thread->init_function); |
f2e0bb91 |
676 | } |
fc04eb16 |
677 | } |
678 | |
679 | thread->params = sv_dup(params, &clone_param); |
d4315dd6 |
680 | SvREFCNT_inc_void(thread->params); |
fc04eb16 |
681 | |
682 | /* The code below checks that anything living on the tmps stack and |
683 | * has been cloned (so it lives in the ptr_table) has a refcount |
684 | * higher than 0. |
685 | * |
686 | * If the refcount is 0 it means that a something on the stack/context |
687 | * was holding a reference to it and since we init_stacks() in |
688 | * perl_clone that won't get cleaned and we will get a leaked scalar. |
689 | * The reason it was cloned was that it lived on the @_ stack. |
690 | * |
691 | * Example of this can be found in bugreport 15837 where calls in the |
692 | * parameter list end up as a temp. |
693 | * |
694 | * One could argue that this fix should be in perl_clone. |
695 | */ |
696 | while (tmps_ix > 0) { |
697 | SV* sv = (SV*)ptr_table_fetch(PL_ptr_table, tmps_tmp[tmps_ix]); |
698 | tmps_ix--; |
699 | if (sv && SvREFCNT(sv) == 0) { |
d4315dd6 |
700 | SvREFCNT_inc_void(sv); |
fc04eb16 |
701 | SvREFCNT_dec(sv); |
702 | } |
703 | } |
704 | |
705 | SvTEMP_off(thread->init_function); |
706 | ptr_table_free(PL_ptr_table); |
707 | PL_ptr_table = NULL; |
708 | PL_exit_flags |= PERL_EXIT_DESTRUCT_END; |
709 | } |
710 | S_ithread_set(aTHX_ current_thread); |
711 | PERL_SET_CONTEXT(aTHX); |
712 | |
713 | /* Create/start the thread */ |
47ba8780 |
714 | #ifdef WIN32 |
fc04eb16 |
715 | thread->handle = CreateThread(NULL, |
514612b7 |
716 | (DWORD)thread->stack_size, |
fc04eb16 |
717 | S_ithread_run, |
718 | (LPVOID)thread, |
514612b7 |
719 | STACK_SIZE_PARAM_IS_A_RESERVATION, |
fc04eb16 |
720 | &thread->thr); |
82c40bf6 |
721 | #else |
fc04eb16 |
722 | { |
861d5cbe |
723 | STATIC pthread_attr_t attr; |
724 | STATIC int attr_inited = 0; |
725 | STATIC int attr_joinable = PTHREAD_CREATE_JOINABLE; |
fc04eb16 |
726 | if (! attr_inited) { |
727 | pthread_attr_init(&attr); |
728 | attr_inited = 1; |
729 | } |
730 | |
fa26028c |
731 | # ifdef PTHREAD_ATTR_SETDETACHSTATE |
fc04eb16 |
732 | /* Threads start out joinable */ |
733 | PTHREAD_ATTR_SETDETACHSTATE(&attr, attr_joinable); |
fa26028c |
734 | # endif |
fc04eb16 |
735 | |
514612b7 |
736 | # ifdef _POSIX_THREAD_ATTR_STACKSIZE |
fc04eb16 |
737 | /* Set thread's stack size */ |
514612b7 |
738 | if (thread->stack_size > 0) { |
739 | rc_stack_size = pthread_attr_setstacksize(&attr, (size_t)thread->stack_size); |
740 | } |
3eb37d38 |
741 | # endif |
742 | |
fc04eb16 |
743 | /* Create the thread */ |
744 | if (! rc_stack_size) { |
745 | # ifdef OLD_PTHREADS_API |
746 | rc_thread_create = pthread_create(&thread->thr, |
747 | attr, |
748 | S_ithread_run, |
749 | (void *)thread); |
750 | # else |
751 | # if defined(HAS_PTHREAD_ATTR_SETSCOPE) && defined(PTHREAD_SCOPE_SYSTEM) |
752 | pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); |
753 | # endif |
754 | rc_thread_create = pthread_create(&thread->thr, |
755 | &attr, |
756 | S_ithread_run, |
757 | (void *)thread); |
19a077f6 |
758 | # endif |
fc04eb16 |
759 | } |
514612b7 |
760 | |
761 | # ifdef _POSIX_THREAD_ATTR_STACKSIZE |
762 | /* Try to get thread's actual stack size */ |
763 | { |
764 | size_t stacksize; |
58a3a76c |
765 | #ifdef HPUX1020 |
766 | stacksize = pthread_attr_getstacksize(attr); |
767 | #else |
768 | if (! pthread_attr_getstacksize(&attr, &stacksize)) |
769 | #endif |
770 | if (stacksize > 0) { |
514612b7 |
771 | thread->stack_size = (IV)stacksize; |
772 | } |
514612b7 |
773 | } |
774 | # endif |
fc04eb16 |
775 | } |
82c40bf6 |
776 | #endif |
bcd9ca9b |
777 | |
fc04eb16 |
778 | /* Check for errors */ |
d94006e8 |
779 | #ifdef WIN32 |
fc04eb16 |
780 | if (thread->handle == NULL) { |
d94006e8 |
781 | #else |
fc04eb16 |
782 | if (rc_stack_size || rc_thread_create) { |
d94006e8 |
783 | #endif |
9ca4d7fd |
784 | /* Must unlock mutex for destruct call */ |
5c6ff896 |
785 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
fc04eb16 |
786 | sv_2mortal(params); |
adc09a0e |
787 | thread->state |= PERL_ITHR_NONVIABLE; |
6158f8b3 |
788 | S_ithread_free(aTHX_ thread); /* releases MUTEX */ |
d94006e8 |
789 | #ifndef WIN32 |
514612b7 |
790 | if (ckWARN_d(WARN_THREADS)) { |
fea7688c |
791 | if (rc_stack_size) { |
514612b7 |
792 | Perl_warn(aTHX_ "Thread creation failed: pthread_attr_setstacksize(%" IVdf ") returned %d", thread->stack_size, rc_stack_size); |
fea7688c |
793 | } else { |
514612b7 |
794 | Perl_warn(aTHX_ "Thread creation failed: pthread_create returned %d", rc_thread_create); |
fea7688c |
795 | } |
514612b7 |
796 | } |
d94006e8 |
797 | #endif |
9ca4d7fd |
798 | return (NULL); |
fc04eb16 |
799 | } |
800 | |
5c6ff896 |
801 | MY_POOL.running_threads++; |
fc04eb16 |
802 | sv_2mortal(params); |
9ca4d7fd |
803 | return (thread); |
68795e93 |
804 | } |
47ba8780 |
805 | |
73e09c8f |
806 | #endif /* USE_ITHREADS */ |
e1c44605 |
807 | |
fcea4b7c |
808 | |
fc04eb16 |
809 | MODULE = threads PACKAGE = threads PREFIX = ithread_ |
68795e93 |
810 | PROTOTYPES: DISABLE |
8222d950 |
811 | |
73e09c8f |
812 | #ifdef USE_ITHREADS |
813 | |
68795e93 |
814 | void |
f4cc38af |
815 | ithread_create(...) |
816 | PREINIT: |
817 | char *classname; |
514612b7 |
818 | ithread *thread; |
f4cc38af |
819 | SV *function_to_call; |
820 | AV *params; |
514612b7 |
821 | HV *specs; |
822 | IV stack_size; |
9d9ff5b1 |
823 | int context; |
69a9b4b8 |
824 | int exit_opt; |
825 | SV *thread_exit_only; |
9d9ff5b1 |
826 | char *str; |
514612b7 |
827 | int idx; |
f4cc38af |
828 | int ii; |
5c6ff896 |
829 | dMY_POOL; |
f4cc38af |
830 | CODE: |
514612b7 |
831 | if ((items >= 2) && SvROK(ST(1)) && SvTYPE(SvRV(ST(1)))==SVt_PVHV) { |
fea7688c |
832 | if (--items < 2) { |
514612b7 |
833 | Perl_croak(aTHX_ "Usage: threads->create(\\%specs, function, ...)"); |
fea7688c |
834 | } |
514612b7 |
835 | specs = (HV*)SvRV(ST(1)); |
836 | idx = 1; |
837 | } else { |
fea7688c |
838 | if (items < 2) { |
514612b7 |
839 | Perl_croak(aTHX_ "Usage: threads->create(function, ...)"); |
fea7688c |
840 | } |
514612b7 |
841 | specs = NULL; |
842 | idx = 0; |
843 | } |
f4cc38af |
844 | |
514612b7 |
845 | if (sv_isobject(ST(0))) { |
846 | /* $thr->create() */ |
847 | classname = HvNAME(SvSTASH(SvRV(ST(0)))); |
848 | thread = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
8718f9a1 |
849 | MUTEX_LOCK(&thread->mutex); |
514612b7 |
850 | stack_size = thread->stack_size; |
69a9b4b8 |
851 | exit_opt = thread->state & PERL_ITHR_THREAD_EXIT_ONLY; |
8718f9a1 |
852 | MUTEX_UNLOCK(&thread->mutex); |
514612b7 |
853 | } else { |
854 | /* threads->create() */ |
855 | classname = (char *)SvPV_nolen(ST(0)); |
5c6ff896 |
856 | stack_size = MY_POOL.default_stack_size; |
69a9b4b8 |
857 | thread_exit_only = get_sv("threads::thread_exit_only", TRUE); |
858 | exit_opt = (SvTRUE(thread_exit_only)) |
859 | ? PERL_ITHR_THREAD_EXIT_ONLY : 0; |
514612b7 |
860 | } |
861 | |
862 | function_to_call = ST(idx+1); |
863 | |
9d9ff5b1 |
864 | context = -1; |
514612b7 |
865 | if (specs) { |
866 | /* stack_size */ |
867 | if (hv_exists(specs, "stack", 5)) { |
868 | stack_size = SvIV(*hv_fetch(specs, "stack", 5, 0)); |
869 | } else if (hv_exists(specs, "stacksize", 9)) { |
870 | stack_size = SvIV(*hv_fetch(specs, "stacksize", 9, 0)); |
871 | } else if (hv_exists(specs, "stack_size", 10)) { |
872 | stack_size = SvIV(*hv_fetch(specs, "stack_size", 10, 0)); |
873 | } |
9d9ff5b1 |
874 | |
875 | /* context */ |
876 | if (hv_exists(specs, "context", 7)) { |
877 | str = (char *)SvPV_nolen(*hv_fetch(specs, "context", 7, 0)); |
878 | switch (*str) { |
879 | case 'a': |
880 | case 'A': |
881 | context = G_ARRAY; |
882 | break; |
883 | case 's': |
884 | case 'S': |
885 | context = G_SCALAR; |
886 | break; |
887 | case 'v': |
888 | case 'V': |
889 | context = G_VOID; |
890 | break; |
891 | default: |
892 | Perl_croak(aTHX_ "Invalid context: %s", str); |
893 | } |
894 | } else if (hv_exists(specs, "array", 5)) { |
895 | if (SvTRUE(*hv_fetch(specs, "array", 5, 0))) { |
896 | context = G_ARRAY; |
897 | } |
898 | } else if (hv_exists(specs, "scalar", 6)) { |
899 | if (SvTRUE(*hv_fetch(specs, "scalar", 6, 0))) { |
900 | context = G_SCALAR; |
901 | } |
902 | } else if (hv_exists(specs, "void", 4)) { |
903 | if (SvTRUE(*hv_fetch(specs, "void", 4, 0))) { |
904 | context = G_VOID; |
905 | } |
906 | } |
69a9b4b8 |
907 | |
908 | /* exit => thread_only */ |
909 | if (hv_exists(specs, "exit", 4)) { |
910 | str = (char *)SvPV_nolen(*hv_fetch(specs, "exit", 4, 0)); |
911 | exit_opt = (*str == 't' || *str == 'T') |
912 | ? PERL_ITHR_THREAD_EXIT_ONLY : 0; |
913 | } |
9d9ff5b1 |
914 | } |
915 | if (context == -1) { |
916 | context = GIMME_V; /* Implicit context */ |
917 | } else { |
918 | context |= (GIMME_V & (~(G_ARRAY|G_SCALAR|G_VOID))); |
514612b7 |
919 | } |
f4cc38af |
920 | |
921 | /* Function args */ |
922 | params = newAV(); |
923 | if (items > 2) { |
514612b7 |
924 | for (ii=2; ii < items ; ii++) { |
925 | av_push(params, SvREFCNT_inc(ST(idx+ii))); |
f4cc38af |
926 | } |
927 | } |
928 | |
929 | /* Create thread */ |
5c6ff896 |
930 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
9ca4d7fd |
931 | thread = S_ithread_create(aTHX_ function_to_call, |
932 | stack_size, |
933 | context, |
934 | exit_opt, |
935 | newRV_noinc((SV*)params)); |
936 | if (! thread) { |
937 | XSRETURN_UNDEF; /* Mutex already unlocked */ |
938 | } |
861d5cbe |
939 | ST(0) = sv_2mortal(S_ithread_to_SV(aTHX_ Nullsv, thread, classname, FALSE)); |
adc09a0e |
940 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
9ca4d7fd |
941 | |
942 | /* Let thread run */ |
943 | MUTEX_UNLOCK(&thread->mutex); |
9ca4d7fd |
944 | |
f4cc38af |
945 | /* XSRETURN(1); - implied */ |
946 | |
8222d950 |
947 | |
68795e93 |
948 | void |
f4cc38af |
949 | ithread_list(...) |
950 | PREINIT: |
951 | char *classname; |
fc04eb16 |
952 | ithread *thread; |
f4cc38af |
953 | int list_context; |
954 | IV count = 0; |
11db694d |
955 | int want_running = 0; |
8718f9a1 |
956 | int state; |
5c6ff896 |
957 | dMY_POOL; |
f4cc38af |
958 | PPCODE: |
959 | /* Class method only */ |
fea7688c |
960 | if (SvROK(ST(0))) { |
ead32952 |
961 | Perl_croak(aTHX_ "Usage: threads->list(...)"); |
fea7688c |
962 | } |
f4cc38af |
963 | classname = (char *)SvPV_nolen(ST(0)); |
964 | |
965 | /* Calling context */ |
966 | list_context = (GIMME_V == G_ARRAY); |
967 | |
ead32952 |
968 | /* Running or joinable parameter */ |
969 | if (items > 1) { |
970 | want_running = SvTRUE(ST(1)); |
971 | } |
972 | |
f4cc38af |
973 | /* Walk through threads list */ |
5c6ff896 |
974 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
975 | for (thread = MY_POOL.main_thread.next; |
976 | thread != &MY_POOL.main_thread; |
fc04eb16 |
977 | thread = thread->next) |
f4cc38af |
978 | { |
8718f9a1 |
979 | MUTEX_LOCK(&thread->mutex); |
980 | state = thread->state; |
981 | MUTEX_UNLOCK(&thread->mutex); |
982 | |
f4cc38af |
983 | /* Ignore detached or joined threads */ |
8718f9a1 |
984 | if (state & PERL_ITHR_UNCALLABLE) { |
f4cc38af |
985 | continue; |
986 | } |
ead32952 |
987 | |
988 | /* Filter per parameter */ |
989 | if (items > 1) { |
990 | if (want_running) { |
8718f9a1 |
991 | if (state & PERL_ITHR_FINISHED) { |
ead32952 |
992 | continue; /* Not running */ |
993 | } |
994 | } else { |
8718f9a1 |
995 | if (! (state & PERL_ITHR_FINISHED)) { |
ead32952 |
996 | continue; /* Still running - not joinable yet */ |
997 | } |
998 | } |
999 | } |
1000 | |
f4cc38af |
1001 | /* Push object on stack if list context */ |
1002 | if (list_context) { |
861d5cbe |
1003 | XPUSHs(sv_2mortal(S_ithread_to_SV(aTHX_ Nullsv, thread, classname, TRUE))); |
f4cc38af |
1004 | } |
1005 | count++; |
1006 | } |
5c6ff896 |
1007 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
f4cc38af |
1008 | /* If scalar context, send back count */ |
1009 | if (! list_context) { |
1010 | XSRETURN_IV(count); |
1011 | } |
678a9b6c |
1012 | |
1013 | |
1014 | void |
f4cc38af |
1015 | ithread_self(...) |
1016 | PREINIT: |
1017 | char *classname; |
fcea4b7c |
1018 | ithread *thread; |
f4cc38af |
1019 | CODE: |
1020 | /* Class method only */ |
11db694d |
1021 | if ((items != 1) || SvROK(ST(0))) { |
f4cc38af |
1022 | Perl_croak(aTHX_ "Usage: threads->self()"); |
fea7688c |
1023 | } |
f4cc38af |
1024 | classname = (char *)SvPV_nolen(ST(0)); |
1025 | |
fcea4b7c |
1026 | thread = S_ithread_get(aTHX); |
1027 | |
861d5cbe |
1028 | ST(0) = sv_2mortal(S_ithread_to_SV(aTHX_ Nullsv, thread, classname, TRUE)); |
f4cc38af |
1029 | /* XSRETURN(1); - implied */ |
47ba8780 |
1030 | |
47ba8780 |
1031 | |
1032 | void |
f4cc38af |
1033 | ithread_tid(...) |
1034 | PREINIT: |
1035 | ithread *thread; |
1036 | CODE: |
11db694d |
1037 | PERL_UNUSED_VAR(items); |
861d5cbe |
1038 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
f4cc38af |
1039 | XST_mUV(0, thread->tid); |
1040 | /* XSRETURN(1); - implied */ |
1041 | |
e1c44605 |
1042 | |
f9dff5f5 |
1043 | void |
f4cc38af |
1044 | ithread_join(...) |
1045 | PREINIT: |
fcea4b7c |
1046 | ithread *thread; |
8718f9a1 |
1047 | ithread *current_thread; |
fcea4b7c |
1048 | int join_err; |
f4cc38af |
1049 | AV *params; |
1050 | int len; |
1051 | int ii; |
fcea4b7c |
1052 | #ifdef WIN32 |
1053 | DWORD waitcode; |
1054 | #else |
8718f9a1 |
1055 | int rc_join; |
fcea4b7c |
1056 | void *retval; |
1057 | #endif |
5c6ff896 |
1058 | dMY_POOL; |
f4cc38af |
1059 | PPCODE: |
1060 | /* Object method only */ |
11db694d |
1061 | if ((items != 1) || ! sv_isobject(ST(0))) { |
f4cc38af |
1062 | Perl_croak(aTHX_ "Usage: $thr->join()"); |
fea7688c |
1063 | } |
f4cc38af |
1064 | |
8718f9a1 |
1065 | /* Check if the thread is joinable and not ourselves */ |
861d5cbe |
1066 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
8718f9a1 |
1067 | current_thread = S_ithread_get(aTHX); |
1068 | |
1069 | MUTEX_LOCK(&thread->mutex); |
1070 | if ((join_err = (thread->state & PERL_ITHR_UNCALLABLE))) { |
1071 | MUTEX_UNLOCK(&thread->mutex); |
1072 | Perl_croak(aTHX_ (join_err & PERL_ITHR_DETACHED) |
1073 | ? "Cannot join a detached thread" |
1074 | : "Thread already joined"); |
1075 | } else if (thread->tid == current_thread->tid) { |
1076 | MUTEX_UNLOCK(&thread->mutex); |
1077 | Perl_croak(aTHX_ "Cannot join self"); |
fcea4b7c |
1078 | } |
1079 | |
8718f9a1 |
1080 | /* Mark as joined */ |
1081 | thread->state |= PERL_ITHR_JOINED; |
1082 | MUTEX_UNLOCK(&thread->mutex); |
1083 | |
1084 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
1085 | MY_POOL.joinable_threads--; |
1086 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
1087 | |
fcea4b7c |
1088 | /* Join the thread */ |
1089 | #ifdef WIN32 |
8718f9a1 |
1090 | if (WaitForSingleObject(thread->handle, INFINITE) != WAIT_OBJECT_0) { |
1091 | /* Timeout/abandonment unexpected here; check $^E */ |
1092 | Perl_croak(aTHX_ "PANIC: underlying join failed"); |
1093 | }; |
fcea4b7c |
1094 | #else |
8718f9a1 |
1095 | if ((rc_join = pthread_join(thread->thr, &retval)) != 0) { |
1096 | /* In progress/deadlock/unknown unexpected here; check $! */ |
1097 | errno = rc_join; |
1098 | Perl_croak(aTHX_ "PANIC: underlying join failed"); |
1099 | }; |
fcea4b7c |
1100 | #endif |
1101 | |
1102 | MUTEX_LOCK(&thread->mutex); |
fcea4b7c |
1103 | /* Get the return value from the call_sv */ |
955c272e |
1104 | /* Objects do not survive this process - FIXME */ |
fcea4b7c |
1105 | { |
1106 | AV *params_copy; |
1107 | PerlInterpreter *other_perl; |
1108 | CLONE_PARAMS clone_params; |
fcea4b7c |
1109 | |
1110 | params_copy = (AV *)SvRV(thread->params); |
1111 | other_perl = thread->interp; |
1112 | clone_params.stashes = newAV(); |
1113 | clone_params.flags = CLONEf_JOIN_IN; |
1114 | PL_ptr_table = ptr_table_new(); |
fcea4b7c |
1115 | S_ithread_set(aTHX_ thread); |
1116 | /* Ensure 'meaningful' addresses retain their meaning */ |
1117 | ptr_table_store(PL_ptr_table, &other_perl->Isv_undef, &PL_sv_undef); |
1118 | ptr_table_store(PL_ptr_table, &other_perl->Isv_no, &PL_sv_no); |
1119 | ptr_table_store(PL_ptr_table, &other_perl->Isv_yes, &PL_sv_yes); |
1120 | params = (AV *)sv_dup((SV*)params_copy, &clone_params); |
1121 | S_ithread_set(aTHX_ current_thread); |
1122 | SvREFCNT_dec(clone_params.stashes); |
d4315dd6 |
1123 | SvREFCNT_inc_void(params); |
fcea4b7c |
1124 | ptr_table_free(PL_ptr_table); |
1125 | PL_ptr_table = NULL; |
1126 | } |
1127 | |
955c272e |
1128 | /* If thread didn't die, then we can free its interpreter */ |
1129 | if (! (thread->state & PERL_ITHR_DIED)) { |
1130 | S_ithread_clear(aTHX_ thread); |
1131 | } |
6158f8b3 |
1132 | S_ithread_free(aTHX_ thread); /* releases MUTEX */ |
955c272e |
1133 | |
fcea4b7c |
1134 | /* If no return values, then just return */ |
f4cc38af |
1135 | if (! params) { |
1136 | XSRETURN_UNDEF; |
1137 | } |
1138 | |
1139 | /* Put return values on stack */ |
1140 | len = (int)AvFILL(params); |
1141 | for (ii=0; ii <= len; ii++) { |
1142 | SV* param = av_shift(params); |
1143 | XPUSHs(sv_2mortal(param)); |
1144 | } |
1145 | |
1146 | /* Free return value array */ |
1147 | SvREFCNT_dec(params); |
1148 | |
1149 | |
1150 | void |
1151 | ithread_yield(...) |
1152 | CODE: |
11db694d |
1153 | PERL_UNUSED_VAR(items); |
f4cc38af |
1154 | YIELD; |
1155 | |
1156 | |
1157 | void |
1158 | ithread_detach(...) |
1159 | PREINIT: |
1160 | ithread *thread; |
fcea4b7c |
1161 | int detach_err; |
5c6ff896 |
1162 | dMY_POOL; |
f4cc38af |
1163 | CODE: |
11db694d |
1164 | PERL_UNUSED_VAR(items); |
1165 | |
fcea4b7c |
1166 | /* Detach the thread */ |
8718f9a1 |
1167 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
5c6ff896 |
1168 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
9ca4d7fd |
1169 | MUTEX_LOCK(&thread->mutex); |
8718f9a1 |
1170 | if (! (detach_err = (thread->state & PERL_ITHR_UNCALLABLE))) { |
1171 | /* Thread is detachable */ |
1172 | thread->state |= PERL_ITHR_DETACHED; |
fcea4b7c |
1173 | #ifdef WIN32 |
8718f9a1 |
1174 | /* Windows has no 'detach thread' function */ |
fcea4b7c |
1175 | #else |
8718f9a1 |
1176 | PERL_THREAD_DETACH(thread->thr); |
fcea4b7c |
1177 | #endif |
8718f9a1 |
1178 | if (thread->state & PERL_ITHR_FINISHED) { |
1179 | MY_POOL.joinable_threads--; |
1180 | } else { |
1181 | MY_POOL.running_threads--; |
1182 | MY_POOL.detached_threads++; |
1183 | } |
4dcb9e53 |
1184 | } |
adc09a0e |
1185 | MUTEX_UNLOCK(&thread->mutex); |
5c6ff896 |
1186 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
4dcb9e53 |
1187 | |
8718f9a1 |
1188 | if (detach_err) { |
1189 | Perl_croak(aTHX_ (detach_err & PERL_ITHR_DETACHED) |
1190 | ? "Thread already detached" |
1191 | : "Cannot detach a joined thread"); |
1192 | } |
1193 | |
955c272e |
1194 | /* If thread is finished and didn't die, |
1195 | * then we can free its interpreter */ |
1196 | MUTEX_LOCK(&thread->mutex); |
1197 | if ((thread->state & PERL_ITHR_FINISHED) && |
1198 | ! (thread->state & PERL_ITHR_DIED)) |
1199 | { |
1200 | S_ithread_clear(aTHX_ thread); |
1201 | } |
6158f8b3 |
1202 | S_ithread_free(aTHX_ thread); /* releases MUTEX */ |
955c272e |
1203 | |
f4cc38af |
1204 | |
47ba8780 |
1205 | |
1206 | void |
c0003851 |
1207 | ithread_kill(...) |
1208 | PREINIT: |
1209 | ithread *thread; |
1210 | char *sig_name; |
1211 | IV signal; |
1212 | CODE: |
1213 | /* Must have safe signals */ |
fea7688c |
1214 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) { |
4dcb9e53 |
1215 | Perl_croak(aTHX_ "Cannot signal threads without safe signals"); |
fea7688c |
1216 | } |
c0003851 |
1217 | |
1218 | /* Object method only */ |
11db694d |
1219 | if ((items != 2) || ! sv_isobject(ST(0))) { |
c0003851 |
1220 | Perl_croak(aTHX_ "Usage: $thr->kill('SIG...')"); |
fea7688c |
1221 | } |
c0003851 |
1222 | |
c0003851 |
1223 | /* Get signal */ |
1224 | sig_name = SvPV_nolen(ST(1)); |
1225 | if (isALPHA(*sig_name)) { |
fea7688c |
1226 | if (*sig_name == 'S' && sig_name[1] == 'I' && sig_name[2] == 'G') { |
c0003851 |
1227 | sig_name += 3; |
fea7688c |
1228 | } |
1229 | if ((signal = whichsig(sig_name)) < 0) { |
c0003851 |
1230 | Perl_croak(aTHX_ "Unrecognized signal name: %s", sig_name); |
fea7688c |
1231 | } |
1232 | } else { |
c0003851 |
1233 | signal = SvIV(ST(1)); |
fea7688c |
1234 | } |
c0003851 |
1235 | |
1236 | /* Set the signal for the thread */ |
861d5cbe |
1237 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
4dcb9e53 |
1238 | MUTEX_LOCK(&thread->mutex); |
3ceb02cd |
1239 | if (thread->interp) { |
c0003851 |
1240 | dTHXa(thread->interp); |
1241 | PL_psig_pend[signal]++; |
1242 | PL_sig_pending = 1; |
1243 | } |
4dcb9e53 |
1244 | MUTEX_UNLOCK(&thread->mutex); |
c0003851 |
1245 | |
1246 | /* Return the thread to allow for method chaining */ |
1247 | ST(0) = ST(0); |
1248 | /* XSRETURN(1); - implied */ |
1249 | |
1250 | |
1251 | void |
f4cc38af |
1252 | ithread_DESTROY(...) |
1253 | CODE: |
11db694d |
1254 | PERL_UNUSED_VAR(items); |
fcea4b7c |
1255 | sv_unmagic(SvRV(ST(0)), PERL_MAGIC_shared_scalar); |
f4cc38af |
1256 | |
1257 | |
1258 | void |
1259 | ithread_equal(...) |
fc04eb16 |
1260 | PREINIT: |
1261 | int are_equal = 0; |
f4cc38af |
1262 | CODE: |
11db694d |
1263 | PERL_UNUSED_VAR(items); |
1264 | |
fc04eb16 |
1265 | /* Compares TIDs to determine thread equality */ |
f4cc38af |
1266 | if (sv_isobject(ST(0)) && sv_isobject(ST(1))) { |
1267 | ithread *thr1 = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
1268 | ithread *thr2 = INT2PTR(ithread *, SvIV(SvRV(ST(1)))); |
fc04eb16 |
1269 | are_equal = (thr1->tid == thr2->tid); |
1270 | } |
1271 | if (are_equal) { |
1272 | XST_mYES(0); |
f4cc38af |
1273 | } else { |
fc04eb16 |
1274 | /* Return 0 on false for backward compatibility */ |
f4cc38af |
1275 | XST_mIV(0, 0); |
1276 | } |
1277 | /* XSRETURN(1); - implied */ |
1278 | |
47ba8780 |
1279 | |
47ba8780 |
1280 | void |
f4cc38af |
1281 | ithread_object(...) |
1282 | PREINIT: |
1283 | char *classname; |
1284 | UV tid; |
fc04eb16 |
1285 | ithread *thread; |
8718f9a1 |
1286 | int state; |
9ca4d7fd |
1287 | int have_obj = 0; |
5c6ff896 |
1288 | dMY_POOL; |
f4cc38af |
1289 | CODE: |
1290 | /* Class method only */ |
fea7688c |
1291 | if (SvROK(ST(0))) { |
f4cc38af |
1292 | Perl_croak(aTHX_ "Usage: threads->object($tid)"); |
fea7688c |
1293 | } |
f4cc38af |
1294 | classname = (char *)SvPV_nolen(ST(0)); |
1295 | |
1296 | if ((items < 2) || ! SvOK(ST(1))) { |
1297 | XSRETURN_UNDEF; |
1298 | } |
1299 | |
fc04eb16 |
1300 | /* threads->object($tid) */ |
f4cc38af |
1301 | tid = SvUV(ST(1)); |
1302 | |
1303 | /* Walk through threads list */ |
5c6ff896 |
1304 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
1305 | for (thread = MY_POOL.main_thread.next; |
1306 | thread != &MY_POOL.main_thread; |
fc04eb16 |
1307 | thread = thread->next) |
f4cc38af |
1308 | { |
9ca4d7fd |
1309 | /* Look for TID */ |
1310 | if (thread->tid == tid) { |
1311 | /* Ignore if detached or joined */ |
8718f9a1 |
1312 | MUTEX_LOCK(&thread->mutex); |
1313 | state = thread->state; |
1314 | MUTEX_UNLOCK(&thread->mutex); |
1315 | if (! (state & PERL_ITHR_UNCALLABLE)) { |
9ca4d7fd |
1316 | /* Put object on stack */ |
861d5cbe |
1317 | ST(0) = sv_2mortal(S_ithread_to_SV(aTHX_ Nullsv, thread, classname, TRUE)); |
9ca4d7fd |
1318 | have_obj = 1; |
1319 | } |
1320 | break; |
f4cc38af |
1321 | } |
f4cc38af |
1322 | } |
5c6ff896 |
1323 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
9ca4d7fd |
1324 | |
1325 | if (! have_obj) { |
f4cc38af |
1326 | XSRETURN_UNDEF; |
1327 | } |
1328 | /* XSRETURN(1); - implied */ |
1329 | |
1330 | |
1331 | void |
1332 | ithread__handle(...); |
1333 | PREINIT: |
1334 | ithread *thread; |
1335 | CODE: |
11db694d |
1336 | PERL_UNUSED_VAR(items); |
861d5cbe |
1337 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
f4cc38af |
1338 | #ifdef WIN32 |
fcea4b7c |
1339 | XST_mUV(0, PTR2UV(&thread->handle)); |
f4cc38af |
1340 | #else |
75ba4ae2 |
1341 | XST_mUV(0, PTR2UV(&thread->thr)); |
f4cc38af |
1342 | #endif |
1343 | /* XSRETURN(1); - implied */ |
68795e93 |
1344 | |
514612b7 |
1345 | |
1346 | void |
1347 | ithread_get_stack_size(...) |
1348 | PREINIT: |
1349 | IV stack_size; |
5c6ff896 |
1350 | dMY_POOL; |
514612b7 |
1351 | CODE: |
11db694d |
1352 | PERL_UNUSED_VAR(items); |
514612b7 |
1353 | if (sv_isobject(ST(0))) { |
1354 | /* $thr->get_stack_size() */ |
1355 | ithread *thread = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
1356 | stack_size = thread->stack_size; |
1357 | } else { |
1358 | /* threads->get_stack_size() */ |
5c6ff896 |
1359 | stack_size = MY_POOL.default_stack_size; |
514612b7 |
1360 | } |
1361 | XST_mIV(0, stack_size); |
1362 | /* XSRETURN(1); - implied */ |
1363 | |
1364 | |
1365 | void |
1366 | ithread_set_stack_size(...) |
1367 | PREINIT: |
1368 | IV old_size; |
5c6ff896 |
1369 | dMY_POOL; |
514612b7 |
1370 | CODE: |
fea7688c |
1371 | if (items != 2) { |
514612b7 |
1372 | Perl_croak(aTHX_ "Usage: threads->set_stack_size($size)"); |
fea7688c |
1373 | } |
1374 | if (sv_isobject(ST(0))) { |
514612b7 |
1375 | Perl_croak(aTHX_ "Cannot change stack size of an existing thread"); |
fea7688c |
1376 | } |
514612b7 |
1377 | |
5c6ff896 |
1378 | old_size = MY_POOL.default_stack_size; |
1379 | MY_POOL.default_stack_size = S_good_stack_size(aTHX_ SvIV(ST(1))); |
514612b7 |
1380 | XST_mIV(0, old_size); |
1381 | /* XSRETURN(1); - implied */ |
1382 | |
ead32952 |
1383 | |
1384 | void |
1385 | ithread_is_running(...) |
1386 | PREINIT: |
1387 | ithread *thread; |
1388 | CODE: |
1389 | /* Object method only */ |
11db694d |
1390 | if ((items != 1) || ! sv_isobject(ST(0))) { |
ead32952 |
1391 | Perl_croak(aTHX_ "Usage: $thr->is_running()"); |
fea7688c |
1392 | } |
ead32952 |
1393 | |
1394 | thread = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
8718f9a1 |
1395 | MUTEX_LOCK(&thread->mutex); |
ead32952 |
1396 | ST(0) = (thread->state & PERL_ITHR_FINISHED) ? &PL_sv_no : &PL_sv_yes; |
8718f9a1 |
1397 | MUTEX_UNLOCK(&thread->mutex); |
ead32952 |
1398 | /* XSRETURN(1); - implied */ |
1399 | |
1400 | |
1401 | void |
1402 | ithread_is_detached(...) |
1403 | PREINIT: |
1404 | ithread *thread; |
1405 | CODE: |
11db694d |
1406 | PERL_UNUSED_VAR(items); |
861d5cbe |
1407 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
8718f9a1 |
1408 | MUTEX_LOCK(&thread->mutex); |
ead32952 |
1409 | ST(0) = (thread->state & PERL_ITHR_DETACHED) ? &PL_sv_yes : &PL_sv_no; |
8718f9a1 |
1410 | MUTEX_UNLOCK(&thread->mutex); |
ead32952 |
1411 | /* XSRETURN(1); - implied */ |
1412 | |
1413 | |
1414 | void |
1415 | ithread_is_joinable(...) |
1416 | PREINIT: |
1417 | ithread *thread; |
1418 | CODE: |
1419 | /* Object method only */ |
11db694d |
1420 | if ((items != 1) || ! sv_isobject(ST(0))) { |
ead32952 |
1421 | Perl_croak(aTHX_ "Usage: $thr->is_joinable()"); |
fea7688c |
1422 | } |
ead32952 |
1423 | |
1424 | thread = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
1425 | MUTEX_LOCK(&thread->mutex); |
1426 | ST(0) = ((thread->state & PERL_ITHR_FINISHED) && |
8718f9a1 |
1427 | ! (thread->state & PERL_ITHR_UNCALLABLE)) |
ead32952 |
1428 | ? &PL_sv_yes : &PL_sv_no; |
1429 | MUTEX_UNLOCK(&thread->mutex); |
1430 | /* XSRETURN(1); - implied */ |
1431 | |
1432 | |
1433 | void |
1434 | ithread_wantarray(...) |
1435 | PREINIT: |
1436 | ithread *thread; |
1437 | CODE: |
11db694d |
1438 | PERL_UNUSED_VAR(items); |
861d5cbe |
1439 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
ead32952 |
1440 | ST(0) = (thread->gimme & G_ARRAY) ? &PL_sv_yes : |
1441 | (thread->gimme & G_VOID) ? &PL_sv_undef |
1442 | /* G_SCALAR */ : &PL_sv_no; |
ead32952 |
1443 | /* XSRETURN(1); - implied */ |
1444 | |
69a9b4b8 |
1445 | |
1446 | void |
1447 | ithread_set_thread_exit_only(...) |
1448 | PREINIT: |
1449 | ithread *thread; |
1450 | CODE: |
fea7688c |
1451 | if (items != 2) { |
69a9b4b8 |
1452 | Perl_croak(aTHX_ "Usage: ->set_thread_exit_only(boolean)"); |
fea7688c |
1453 | } |
861d5cbe |
1454 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
69a9b4b8 |
1455 | MUTEX_LOCK(&thread->mutex); |
1456 | if (SvTRUE(ST(1))) { |
1457 | thread->state |= PERL_ITHR_THREAD_EXIT_ONLY; |
1458 | } else { |
1459 | thread->state &= ~PERL_ITHR_THREAD_EXIT_ONLY; |
1460 | } |
1461 | MUTEX_UNLOCK(&thread->mutex); |
1462 | |
955c272e |
1463 | |
1464 | void |
1465 | ithread_error(...) |
1466 | PREINIT: |
1467 | ithread *thread; |
1468 | SV *err = NULL; |
1469 | CODE: |
1470 | /* Object method only */ |
1471 | if ((items != 1) || ! sv_isobject(ST(0))) { |
1472 | Perl_croak(aTHX_ "Usage: $thr->err()"); |
1473 | } |
1474 | |
1475 | thread = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
1476 | MUTEX_LOCK(&thread->mutex); |
1477 | |
1478 | /* If thread died, then clone the error into the calling thread */ |
1479 | if (thread->state & PERL_ITHR_DIED) { |
1480 | PerlInterpreter *other_perl; |
1481 | CLONE_PARAMS clone_params; |
1482 | ithread *current_thread; |
1483 | |
1484 | other_perl = thread->interp; |
1485 | clone_params.stashes = newAV(); |
1486 | clone_params.flags = CLONEf_JOIN_IN; |
1487 | PL_ptr_table = ptr_table_new(); |
1488 | current_thread = S_ithread_get(aTHX); |
1489 | S_ithread_set(aTHX_ thread); |
1490 | /* Ensure 'meaningful' addresses retain their meaning */ |
1491 | ptr_table_store(PL_ptr_table, &other_perl->Isv_undef, &PL_sv_undef); |
1492 | ptr_table_store(PL_ptr_table, &other_perl->Isv_no, &PL_sv_no); |
1493 | ptr_table_store(PL_ptr_table, &other_perl->Isv_yes, &PL_sv_yes); |
1494 | err = sv_dup(thread->err, &clone_params); |
1495 | S_ithread_set(aTHX_ current_thread); |
1496 | SvREFCNT_dec(clone_params.stashes); |
1497 | SvREFCNT_inc_void(err); |
1498 | /* If error was an object, bless it into the correct class */ |
1499 | if (thread->err_class) { |
1500 | sv_bless(err, gv_stashpv(thread->err_class, 1)); |
1501 | } |
1502 | ptr_table_free(PL_ptr_table); |
1503 | PL_ptr_table = NULL; |
1504 | } |
1505 | |
1506 | MUTEX_UNLOCK(&thread->mutex); |
1507 | |
1508 | if (! err) { |
1509 | XSRETURN_UNDEF; |
1510 | } |
1511 | |
1512 | ST(0) = sv_2mortal(err); |
1513 | /* XSRETURN(1); - implied */ |
1514 | |
1515 | |
73e09c8f |
1516 | #endif /* USE_ITHREADS */ |
1517 | |
fc04eb16 |
1518 | |
68795e93 |
1519 | BOOT: |
1520 | { |
73e09c8f |
1521 | #ifdef USE_ITHREADS |
5c6ff896 |
1522 | SV *my_pool_sv = *hv_fetch(PL_modglobal, MY_POOL_KEY, |
1523 | sizeof(MY_POOL_KEY)-1, TRUE); |
1524 | my_pool_t *my_poolp = (my_pool_t*)SvPVX(newSV(sizeof(my_pool_t)-1)); |
1525 | |
fc04eb16 |
1526 | MY_CXT_INIT; |
1527 | |
5c6ff896 |
1528 | Zero(my_poolp, 1, my_pool_t); |
1529 | sv_setuv(my_pool_sv, PTR2UV(my_poolp)); |
1530 | |
fc04eb16 |
1531 | PL_perl_destruct_level = 2; |
5c6ff896 |
1532 | MUTEX_INIT(&MY_POOL.create_destruct_mutex); |
1533 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
fc04eb16 |
1534 | |
1535 | PL_threadhook = &Perl_ithread_hook; |
1536 | |
5c6ff896 |
1537 | MY_POOL.tid_counter = 1; |
1538 | # ifdef THREAD_CREATE_NEEDS_STACK |
1539 | MY_POOL.default_stack_size = THREAD_CREATE_NEEDS_STACK; |
1540 | # endif |
1541 | |
c372d929 |
1542 | /* The 'main' thread is thread 0. |
1543 | * It is detached (unjoinable) and immortal. |
1544 | */ |
fc04eb16 |
1545 | |
5c6ff896 |
1546 | MUTEX_INIT(&MY_POOL.main_thread.mutex); |
fc04eb16 |
1547 | |
1548 | /* Head of the threads list */ |
5c6ff896 |
1549 | MY_POOL.main_thread.next = &MY_POOL.main_thread; |
1550 | MY_POOL.main_thread.prev = &MY_POOL.main_thread; |
fc04eb16 |
1551 | |
5c6ff896 |
1552 | MY_POOL.main_thread.count = 1; /* Immortal */ |
fc04eb16 |
1553 | |
5c6ff896 |
1554 | MY_POOL.main_thread.interp = aTHX; |
1555 | MY_POOL.main_thread.state = PERL_ITHR_DETACHED; /* Detached */ |
1556 | MY_POOL.main_thread.stack_size = MY_POOL.default_stack_size; |
fc04eb16 |
1557 | # ifdef WIN32 |
5c6ff896 |
1558 | MY_POOL.main_thread.thr = GetCurrentThreadId(); |
fc04eb16 |
1559 | # else |
5c6ff896 |
1560 | MY_POOL.main_thread.thr = pthread_self(); |
fc04eb16 |
1561 | # endif |
1562 | |
5c6ff896 |
1563 | S_ithread_set(aTHX_ &MY_POOL.main_thread); |
1564 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
73e09c8f |
1565 | #endif /* USE_ITHREADS */ |
68795e93 |
1566 | } |