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 */ |
69a9b4b8 |
48 | #define PERL_ITHR_DETACHED 1 |
49 | #define PERL_ITHR_JOINED 2 |
8718f9a1 |
50 | #define PERL_ITHR_UNCALLABLE (PERL_ITHR_DETACHED|PERL_ITHR_JOINED) |
69a9b4b8 |
51 | #define PERL_ITHR_FINISHED 4 |
52 | #define PERL_ITHR_THREAD_EXIT_ONLY 8 |
adc09a0e |
53 | #define PERL_ITHR_NONVIABLE 16 |
54 | #define PERL_ITHR_DESTROYED 32 |
955c272e |
55 | #define PERL_ITHR_DIED 64 |
fc04eb16 |
56 | |
57 | typedef struct _ithread { |
58 | struct _ithread *next; /* Next thread in the list */ |
59 | struct _ithread *prev; /* Prev thread in the list */ |
60 | PerlInterpreter *interp; /* The threads interpreter */ |
61 | UV tid; /* Threads module's thread id */ |
62 | perl_mutex mutex; /* Mutex for updating things in this struct */ |
9feacc09 |
63 | int count; /* How many SVs have a reference to us */ |
fc04eb16 |
64 | int state; /* Detached, joined, finished, etc. */ |
65 | int gimme; /* Context of create */ |
66 | SV *init_function; /* Code to run */ |
67 | SV *params; /* Args to pass function */ |
68795e93 |
68 | #ifdef WIN32 |
fc04eb16 |
69 | DWORD thr; /* OS's idea if thread id */ |
70 | HANDLE handle; /* OS's waitable handle */ |
68795e93 |
71 | #else |
fc04eb16 |
72 | pthread_t thr; /* OS's handle for the thread */ |
68795e93 |
73 | #endif |
514612b7 |
74 | IV stack_size; |
955c272e |
75 | SV *err; /* Error from abnormally terminated thread */ |
76 | char *err_class; /* Error object's classname if applicable */ |
68795e93 |
77 | } ithread; |
78 | |
fc04eb16 |
79 | |
5c6ff896 |
80 | #define MY_CXT_KEY "threads::_cxt" XS_VERSION |
628ab322 |
81 | |
82 | typedef struct { |
861d5cbe |
83 | /* Used by Perl interpreter for thread context switching */ |
84 | ithread *context; |
628ab322 |
85 | } my_cxt_t; |
86 | |
87 | START_MY_CXT |
88 | |
68795e93 |
89 | |
5c6ff896 |
90 | #define MY_POOL_KEY "threads::_pool" XS_VERSION |
68795e93 |
91 | |
5c6ff896 |
92 | typedef struct { |
93 | /* Structure for 'main' thread |
94 | * Also forms the 'base' for the doubly-linked list of threads */ |
95 | ithread main_thread; |
96 | |
97 | /* Protects the creation and destruction of threads*/ |
98 | perl_mutex create_destruct_mutex; |
99 | |
100 | UV tid_counter; |
101 | IV joinable_threads; |
102 | IV running_threads; |
103 | IV detached_threads; |
104 | IV default_stack_size; |
105 | IV page_size; |
106 | } my_pool_t; |
107 | |
108 | #define dMY_POOL \ |
109 | SV *my_pool_sv = *hv_fetch(PL_modglobal, MY_POOL_KEY, \ |
110 | sizeof(MY_POOL_KEY)-1, TRUE); \ |
111 | my_pool_t *my_poolp = INT2PTR(my_pool_t*, SvUV(my_pool_sv)) |
112 | |
113 | #define MY_POOL (*my_poolp) |
c05ae023 |
114 | |
115 | |
fc04eb16 |
116 | /* Used by Perl interpreter for thread context switching */ |
861d5cbe |
117 | STATIC void |
fc04eb16 |
118 | S_ithread_set(pTHX_ ithread *thread) |
c05ae023 |
119 | { |
628ab322 |
120 | dMY_CXT; |
861d5cbe |
121 | MY_CXT.context = thread; |
c05ae023 |
122 | } |
123 | |
861d5cbe |
124 | STATIC ithread * |
fc04eb16 |
125 | S_ithread_get(pTHX) |
126 | { |
628ab322 |
127 | dMY_CXT; |
861d5cbe |
128 | return (MY_CXT.context); |
c05ae023 |
129 | } |
130 | |
131 | |
fc04eb16 |
132 | /* Free any data (such as the Perl interpreter) attached to an ithread |
133 | * structure. This is a bit like undef on SVs, where the SV isn't freed, |
134 | * but the PVX is. Must be called with thread->mutex already held. |
2e676467 |
135 | */ |
861d5cbe |
136 | STATIC void |
fc04eb16 |
137 | S_ithread_clear(pTHX_ ithread *thread) |
2e676467 |
138 | { |
139 | PerlInterpreter *interp; |
fc04eb16 |
140 | |
adc09a0e |
141 | assert(((thread->state & PERL_ITHR_FINISHED) && |
8718f9a1 |
142 | (thread->state & PERL_ITHR_UNCALLABLE)) |
adc09a0e |
143 | || |
144 | (thread->state & PERL_ITHR_NONVIABLE)); |
2e676467 |
145 | |
146 | interp = thread->interp; |
147 | if (interp) { |
fc04eb16 |
148 | dTHXa(interp); |
149 | |
150 | PERL_SET_CONTEXT(interp); |
151 | S_ithread_set(aTHX_ thread); |
f2cba68d |
152 | |
fc04eb16 |
153 | SvREFCNT_dec(thread->params); |
154 | thread->params = Nullsv; |
2e676467 |
155 | |
955c272e |
156 | if (thread->err) { |
157 | SvREFCNT_dec(thread->err); |
158 | thread->err = Nullsv; |
159 | } |
160 | |
fc04eb16 |
161 | perl_destruct(interp); |
9ca4d7fd |
162 | perl_free(interp); |
fc04eb16 |
163 | thread->interp = NULL; |
2e676467 |
164 | } |
fc04eb16 |
165 | |
2e676467 |
166 | PERL_SET_CONTEXT(aTHX); |
167 | } |
168 | |
68795e93 |
169 | |
fc04eb16 |
170 | /* Free an ithread structure and any attached data if its count == 0 */ |
861d5cbe |
171 | STATIC void |
fc04eb16 |
172 | S_ithread_destruct(pTHX_ ithread *thread) |
68795e93 |
173 | { |
adc09a0e |
174 | int destroy = 0; |
385d56e4 |
175 | #ifdef WIN32 |
fc04eb16 |
176 | HANDLE handle; |
385d56e4 |
177 | #endif |
adc09a0e |
178 | dMY_POOL; |
179 | |
180 | /* Determine if thread can be destroyed now */ |
181 | MUTEX_LOCK(&thread->mutex); |
fc04eb16 |
182 | if (thread->count != 0) { |
adc09a0e |
183 | destroy = 0; |
184 | } else if (thread->state & PERL_ITHR_DESTROYED) { |
185 | destroy = 0; |
186 | } else if (thread->state & PERL_ITHR_NONVIABLE) { |
187 | thread->state |= PERL_ITHR_DESTROYED; |
188 | destroy = 1; |
189 | } else if (! (thread->state & PERL_ITHR_FINISHED)) { |
190 | destroy = 0; |
8718f9a1 |
191 | } else if (! (thread->state & PERL_ITHR_UNCALLABLE)) { |
adc09a0e |
192 | destroy = 0; |
193 | } else { |
194 | thread->state |= PERL_ITHR_DESTROYED; |
195 | destroy = 1; |
fc04eb16 |
196 | } |
adc09a0e |
197 | MUTEX_UNLOCK(&thread->mutex); |
198 | if (! destroy) return; |
9feacc09 |
199 | |
fc04eb16 |
200 | /* Main thread (0) is immortal and should never get here */ |
201 | assert(thread->tid != 0); |
202 | |
203 | /* Remove from circular list of threads */ |
5c6ff896 |
204 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
adc09a0e |
205 | assert(thread->prev && thread->next); |
206 | thread->next->prev = thread->prev; |
207 | thread->prev->next = thread->next; |
fc04eb16 |
208 | thread->next = NULL; |
209 | thread->prev = NULL; |
5c6ff896 |
210 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
c2f2a82b |
211 | |
fc04eb16 |
212 | /* Thread is now disowned */ |
9ca4d7fd |
213 | MUTEX_LOCK(&thread->mutex); |
fc04eb16 |
214 | S_ithread_clear(aTHX_ thread); |
385d56e4 |
215 | |
216 | #ifdef WIN32 |
fc04eb16 |
217 | handle = thread->handle; |
218 | thread->handle = NULL; |
385d56e4 |
219 | #endif |
fc04eb16 |
220 | MUTEX_UNLOCK(&thread->mutex); |
221 | MUTEX_DESTROY(&thread->mutex); |
385d56e4 |
222 | |
c7667023 |
223 | #ifdef WIN32 |
fea7688c |
224 | if (handle) { |
fc04eb16 |
225 | CloseHandle(handle); |
fea7688c |
226 | } |
c7667023 |
227 | #endif |
385d56e4 |
228 | |
fc04eb16 |
229 | /* Call PerlMemShared_free() in the context of the "first" interpreter |
230 | * per http://www.nntp.perl.org/group/perl.perl5.porters/110772 |
231 | */ |
5c6ff896 |
232 | aTHX = MY_POOL.main_thread.interp; |
fc04eb16 |
233 | PerlMemShared_free(thread); |
68795e93 |
234 | } |
235 | |
fc04eb16 |
236 | |
69a9b4b8 |
237 | /* Warn if exiting with any unjoined threads */ |
861d5cbe |
238 | STATIC int |
69a9b4b8 |
239 | S_exit_warning(pTHX) |
62375a60 |
240 | { |
60bd5ef6 |
241 | int veto_cleanup; |
adc09a0e |
242 | dMY_POOL; |
69a9b4b8 |
243 | |
5c6ff896 |
244 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
245 | veto_cleanup = (MY_POOL.running_threads || MY_POOL.joinable_threads); |
246 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
60bd5ef6 |
247 | |
248 | if (veto_cleanup) { |
fc04eb16 |
249 | if (ckWARN_d(WARN_THREADS)) { |
4dcb9e53 |
250 | Perl_warn(aTHX_ "Perl exited with active threads:\n\t%" |
251 | IVdf " running and unjoined\n\t%" |
252 | IVdf " finished and unjoined\n\t%" |
253 | IVdf " running and detached\n", |
5c6ff896 |
254 | MY_POOL.running_threads, |
255 | MY_POOL.joinable_threads, |
256 | MY_POOL.detached_threads); |
fc04eb16 |
257 | } |
62375a60 |
258 | } |
69a9b4b8 |
259 | |
fc04eb16 |
260 | return (veto_cleanup); |
62375a60 |
261 | } |
262 | |
69a9b4b8 |
263 | /* Called on exit from main thread */ |
264 | int |
265 | Perl_ithread_hook(pTHX) |
266 | { |
5c6ff896 |
267 | dMY_POOL; |
b5c80a23 |
268 | return ((aTHX == MY_POOL.main_thread.interp) ? S_exit_warning(aTHX) : 0); |
69a9b4b8 |
269 | } |
270 | |
68795e93 |
271 | |
272 | /* MAGIC (in mg.h sense) hooks */ |
273 | |
274 | int |
275 | ithread_mg_get(pTHX_ SV *sv, MAGIC *mg) |
276 | { |
fc04eb16 |
277 | ithread *thread = (ithread *)mg->mg_ptr; |
45977657 |
278 | SvIV_set(sv, PTR2IV(thread)); |
68795e93 |
279 | SvIOK_on(sv); |
fc04eb16 |
280 | return (0); |
68795e93 |
281 | } |
282 | |
283 | int |
284 | ithread_mg_free(pTHX_ SV *sv, MAGIC *mg) |
285 | { |
f2cba68d |
286 | ithread *thread = (ithread *)mg->mg_ptr; |
f2cba68d |
287 | |
68795e93 |
288 | MUTEX_LOCK(&thread->mutex); |
adc09a0e |
289 | thread->count--; |
f2cba68d |
290 | MUTEX_UNLOCK(&thread->mutex); |
291 | |
adc09a0e |
292 | /* Try to clean up thread */ |
293 | S_ithread_destruct(aTHX_ thread); |
294 | |
fc04eb16 |
295 | return (0); |
68795e93 |
296 | } |
297 | |
298 | int |
299 | ithread_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *param) |
300 | { |
fc04eb16 |
301 | ithread *thread = (ithread *)mg->mg_ptr; |
68795e93 |
302 | MUTEX_LOCK(&thread->mutex); |
68795e93 |
303 | thread->count++; |
304 | MUTEX_UNLOCK(&thread->mutex); |
fc04eb16 |
305 | return (0); |
68795e93 |
306 | } |
307 | |
308 | MGVTBL ithread_vtbl = { |
fc04eb16 |
309 | ithread_mg_get, /* get */ |
310 | 0, /* set */ |
311 | 0, /* len */ |
312 | 0, /* clear */ |
313 | ithread_mg_free, /* free */ |
314 | 0, /* copy */ |
315 | ithread_mg_dup /* dup */ |
68795e93 |
316 | }; |
317 | |
47ba8780 |
318 | |
514612b7 |
319 | /* Provided default, minimum and rational stack sizes */ |
861d5cbe |
320 | STATIC IV |
321 | S_good_stack_size(pTHX_ IV stack_size) |
514612b7 |
322 | { |
5c6ff896 |
323 | dMY_POOL; |
324 | |
514612b7 |
325 | /* Use default stack size if no stack size specified */ |
fea7688c |
326 | if (! stack_size) { |
5c6ff896 |
327 | return (MY_POOL.default_stack_size); |
fea7688c |
328 | } |
514612b7 |
329 | |
330 | #ifdef PTHREAD_STACK_MIN |
331 | /* Can't use less than minimum */ |
332 | if (stack_size < PTHREAD_STACK_MIN) { |
4dcb9e53 |
333 | if (ckWARN(WARN_THREADS)) { |
514612b7 |
334 | Perl_warn(aTHX_ "Using minimum thread stack size of %" IVdf, (IV)PTHREAD_STACK_MIN); |
335 | } |
336 | return (PTHREAD_STACK_MIN); |
337 | } |
338 | #endif |
339 | |
340 | /* Round up to page size boundary */ |
5c6ff896 |
341 | if (MY_POOL.page_size <= 0) { |
d305c2c9 |
342 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE)) |
514612b7 |
343 | SETERRNO(0, SS_NORMAL); |
d305c2c9 |
344 | # ifdef _SC_PAGESIZE |
5c6ff896 |
345 | MY_POOL.page_size = sysconf(_SC_PAGESIZE); |
d305c2c9 |
346 | # else |
5c6ff896 |
347 | MY_POOL.page_size = sysconf(_SC_MMAP_PAGE_SIZE); |
d305c2c9 |
348 | # endif |
5c6ff896 |
349 | if ((long)MY_POOL.page_size < 0) { |
514612b7 |
350 | if (errno) { |
351 | SV * const error = get_sv("@", FALSE); |
352 | (void)SvUPGRADE(error, SVt_PV); |
353 | Perl_croak(aTHX_ "PANIC: sysconf: %s", SvPV_nolen(error)); |
354 | } else { |
355 | Perl_croak(aTHX_ "PANIC: sysconf: pagesize unknown"); |
356 | } |
357 | } |
d305c2c9 |
358 | #else |
359 | # ifdef HAS_GETPAGESIZE |
5c6ff896 |
360 | MY_POOL.page_size = getpagesize(); |
514612b7 |
361 | # else |
d305c2c9 |
362 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) |
5c6ff896 |
363 | MY_POOL.page_size = PAGESIZE; |
d305c2c9 |
364 | # else |
5c6ff896 |
365 | MY_POOL.page_size = 8192; /* A conservative default */ |
d305c2c9 |
366 | # endif |
514612b7 |
367 | # endif |
5c6ff896 |
368 | if (MY_POOL.page_size <= 0) { |
369 | Perl_croak(aTHX_ "PANIC: bad pagesize %" IVdf, (IV)MY_POOL.page_size); |
fea7688c |
370 | } |
514612b7 |
371 | #endif |
372 | } |
5c6ff896 |
373 | stack_size = ((stack_size + (MY_POOL.page_size - 1)) / MY_POOL.page_size) * MY_POOL.page_size; |
514612b7 |
374 | |
375 | return (stack_size); |
376 | } |
377 | |
378 | |
fc04eb16 |
379 | /* Starts executing the thread. |
380 | * Passed as the C level function to run in the new thread. |
b1edfb69 |
381 | */ |
47ba8780 |
382 | #ifdef WIN32 |
861d5cbe |
383 | STATIC THREAD_RET_TYPE |
fc04eb16 |
384 | S_ithread_run(LPVOID arg) |
47ba8780 |
385 | #else |
861d5cbe |
386 | STATIC void * |
fc04eb16 |
387 | S_ithread_run(void * arg) |
47ba8780 |
388 | #endif |
fc04eb16 |
389 | { |
390 | ithread *thread = (ithread *)arg; |
69a9b4b8 |
391 | int jmp_rc = 0; |
392 | I32 oldscope; |
955c272e |
393 | int exit_app = 0; /* Thread terminated using 'exit' */ |
69a9b4b8 |
394 | int exit_code = 0; |
955c272e |
395 | int died = 0; /* Thread terminated abnormally */ |
f2cba68d |
396 | |
69a9b4b8 |
397 | dJMPENV; |
398 | |
fc04eb16 |
399 | dTHXa(thread->interp); |
47ba8780 |
400 | |
5c6ff896 |
401 | dMY_POOL; |
402 | |
9ca4d7fd |
403 | /* Blocked until ->create() call finishes */ |
fc04eb16 |
404 | MUTEX_LOCK(&thread->mutex); |
fc04eb16 |
405 | MUTEX_UNLOCK(&thread->mutex); |
9ca4d7fd |
406 | |
407 | PERL_SET_CONTEXT(thread->interp); |
408 | S_ithread_set(aTHX_ thread); |
47ba8780 |
409 | |
fc04eb16 |
410 | PL_perl_destruct_level = 2; |
f2cba68d |
411 | |
fc04eb16 |
412 | { |
413 | AV *params = (AV *)SvRV(thread->params); |
414 | int len = (int)av_len(params)+1; |
415 | int ii; |
416 | |
417 | dSP; |
418 | ENTER; |
419 | SAVETMPS; |
420 | |
421 | /* Put args on the stack */ |
422 | PUSHMARK(SP); |
423 | for (ii=0; ii < len; ii++) { |
424 | XPUSHs(av_shift(params)); |
425 | } |
426 | PUTBACK; |
427 | |
4dcb9e53 |
428 | oldscope = PL_scopestack_ix; |
429 | JMPENV_PUSH(jmp_rc); |
430 | if (jmp_rc == 0) { |
431 | /* Run the specified function */ |
432 | len = (int)call_sv(thread->init_function, thread->gimme|G_EVAL); |
433 | } else if (jmp_rc == 2) { |
69a9b4b8 |
434 | /* Thread exited */ |
435 | exit_app = 1; |
436 | exit_code = STATUS_CURRENT; |
4dcb9e53 |
437 | while (PL_scopestack_ix > oldscope) { |
438 | LEAVE; |
439 | } |
440 | } |
441 | JMPENV_POP; |
fc04eb16 |
442 | |
443 | /* Remove args from stack and put back in params array */ |
444 | SPAGAIN; |
445 | for (ii=len-1; ii >= 0; ii--) { |
446 | SV *sv = POPs; |
4dcb9e53 |
447 | if (jmp_rc == 0) { |
448 | av_store(params, ii, SvREFCNT_inc(sv)); |
449 | } |
fc04eb16 |
450 | } |
451 | |
4dcb9e53 |
452 | FREETMPS; |
453 | LEAVE; |
454 | |
955c272e |
455 | /* Check for abnormal termination */ |
456 | if (SvTRUE(ERRSV)) { |
457 | died = PERL_ITHR_DIED; |
458 | thread->err = newSVsv(ERRSV); |
459 | /* If ERRSV is an object, remember the classname and then |
460 | * rebless into 'main' so it will survive 'cloning' |
461 | */ |
462 | if (sv_isobject(thread->err)) { |
463 | thread->err_class = HvNAME(SvSTASH(SvRV(thread->err))); |
464 | sv_bless(thread->err, gv_stashpv("main", 0)); |
465 | } |
466 | |
467 | if (ckWARN_d(WARN_THREADS)) { |
468 | oldscope = PL_scopestack_ix; |
469 | JMPENV_PUSH(jmp_rc); |
470 | if (jmp_rc == 0) { |
471 | /* Warn that thread died */ |
472 | Perl_warn(aTHX_ "Thread %" UVuf " terminated abnormally: %" SVf, thread->tid, ERRSV); |
473 | } else if (jmp_rc == 2) { |
474 | /* Warn handler exited */ |
475 | exit_app = 1; |
476 | exit_code = STATUS_CURRENT; |
477 | while (PL_scopestack_ix > oldscope) { |
478 | LEAVE; |
479 | } |
4dcb9e53 |
480 | } |
955c272e |
481 | JMPENV_POP; |
4dcb9e53 |
482 | } |
fc04eb16 |
483 | } |
484 | |
fc04eb16 |
485 | /* Release function ref */ |
486 | SvREFCNT_dec(thread->init_function); |
487 | thread->init_function = Nullsv; |
488 | } |
62375a60 |
489 | |
fc04eb16 |
490 | PerlIO_flush((PerlIO *)NULL); |
491 | |
5c6ff896 |
492 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
fc04eb16 |
493 | MUTEX_LOCK(&thread->mutex); |
494 | /* Mark as finished */ |
955c272e |
495 | thread->state |= (PERL_ITHR_FINISHED | died); |
69a9b4b8 |
496 | /* Clear exit flag if required */ |
fea7688c |
497 | if (thread->state & PERL_ITHR_THREAD_EXIT_ONLY) { |
69a9b4b8 |
498 | exit_app = 0; |
fea7688c |
499 | } |
fc04eb16 |
500 | |
69a9b4b8 |
501 | /* Adjust thread status counts */ |
adc09a0e |
502 | if (thread->state & PERL_ITHR_DETACHED) { |
5c6ff896 |
503 | MY_POOL.detached_threads--; |
4dcb9e53 |
504 | } else { |
5c6ff896 |
505 | MY_POOL.running_threads--; |
506 | MY_POOL.joinable_threads++; |
5168baf3 |
507 | } |
adc09a0e |
508 | MUTEX_UNLOCK(&thread->mutex); |
5c6ff896 |
509 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
69a9b4b8 |
510 | |
511 | /* Exit application if required */ |
512 | if (exit_app) { |
513 | oldscope = PL_scopestack_ix; |
514 | JMPENV_PUSH(jmp_rc); |
515 | if (jmp_rc == 0) { |
516 | /* Warn if there are unjoined threads */ |
517 | S_exit_warning(aTHX); |
518 | } else if (jmp_rc == 2) { |
519 | /* Warn handler exited */ |
520 | exit_code = STATUS_CURRENT; |
521 | while (PL_scopestack_ix > oldscope) { |
522 | LEAVE; |
523 | } |
524 | } |
525 | JMPENV_POP; |
526 | |
527 | my_exit(exit_code); |
528 | } |
529 | |
adc09a0e |
530 | /* Try to clean up thread */ |
531 | S_ithread_destruct(aTHX_ thread); |
91604d21 |
532 | |
47ba8780 |
533 | #ifdef WIN32 |
fc04eb16 |
534 | return ((DWORD)0); |
e8f2bb9a |
535 | #else |
fc04eb16 |
536 | return (0); |
47ba8780 |
537 | #endif |
68795e93 |
538 | } |
539 | |
fc04eb16 |
540 | |
541 | /* Type conversion helper functions */ |
fea7688c |
542 | |
861d5cbe |
543 | STATIC SV * |
544 | S_ithread_to_SV(pTHX_ SV *obj, ithread *thread, char *classname, bool inc) |
68795e93 |
545 | { |
546 | SV *sv; |
547 | MAGIC *mg; |
fc04eb16 |
548 | |
9ca4d7fd |
549 | /* If incrementing thread ref count, then call within mutex lock */ |
68795e93 |
550 | if (inc) { |
fc04eb16 |
551 | MUTEX_LOCK(&thread->mutex); |
552 | thread->count++; |
553 | MUTEX_UNLOCK(&thread->mutex); |
554 | } |
555 | |
556 | if (! obj) { |
557 | obj = newSV(0); |
68795e93 |
558 | } |
fc04eb16 |
559 | |
560 | sv = newSVrv(obj, classname); |
561 | sv_setiv(sv, PTR2IV(thread)); |
562 | mg = sv_magicext(sv, Nullsv, PERL_MAGIC_shared_scalar, &ithread_vtbl, (char *)thread, 0); |
68795e93 |
563 | mg->mg_flags |= MGf_DUP; |
564 | SvREADONLY_on(sv); |
fc04eb16 |
565 | |
566 | return (obj); |
68795e93 |
567 | } |
47ba8780 |
568 | |
861d5cbe |
569 | STATIC ithread * |
570 | S_SV_to_ithread(pTHX_ SV *sv) |
68795e93 |
571 | { |
fc04eb16 |
572 | /* Argument is a thread */ |
573 | if (SvROK(sv)) { |
574 | return (INT2PTR(ithread *, SvIV(SvRV(sv)))); |
575 | } |
576 | /* Argument is classname, therefore return current thread */ |
577 | return (S_ithread_get(aTHX)); |
47ba8780 |
578 | } |
579 | |
47ba8780 |
580 | |
fc04eb16 |
581 | /* threads->create() |
582 | * Called in context of parent thread. |
5c6ff896 |
583 | * Called with MY_POOL.create_destruct_mutex locked. (Unlocked on error.) |
fc04eb16 |
584 | */ |
861d5cbe |
585 | STATIC ithread * |
fc04eb16 |
586 | S_ithread_create( |
9ca4d7fd |
587 | pTHX_ SV *init_function, |
514612b7 |
588 | IV stack_size, |
9d9ff5b1 |
589 | int gimme, |
69a9b4b8 |
590 | int exit_opt, |
fc04eb16 |
591 | SV *params) |
68795e93 |
592 | { |
fc04eb16 |
593 | ithread *thread; |
fc04eb16 |
594 | ithread *current_thread = S_ithread_get(aTHX); |
3b1c3273 |
595 | |
fc04eb16 |
596 | SV **tmps_tmp = PL_tmps_stack; |
597 | IV tmps_ix = PL_tmps_ix; |
d94006e8 |
598 | #ifndef WIN32 |
fc04eb16 |
599 | int rc_stack_size = 0; |
600 | int rc_thread_create = 0; |
d94006e8 |
601 | #endif |
adc09a0e |
602 | dMY_POOL; |
3b1c3273 |
603 | |
adc09a0e |
604 | /* Allocate thread structure in context of the main thread's interpreter */ |
5c6ff896 |
605 | { |
606 | PERL_SET_CONTEXT(MY_POOL.main_thread.interp); |
607 | thread = (ithread *)PerlMemShared_malloc(sizeof(ithread)); |
608 | } |
609 | PERL_SET_CONTEXT(aTHX); |
fc04eb16 |
610 | if (!thread) { |
5c6ff896 |
611 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
fc04eb16 |
612 | PerlLIO_write(PerlIO_fileno(Perl_error_log), PL_no_mem, strlen(PL_no_mem)); |
613 | my_exit(1); |
614 | } |
615 | Zero(thread, 1, ithread); |
616 | |
617 | /* Add to threads list */ |
5c6ff896 |
618 | thread->next = &MY_POOL.main_thread; |
619 | thread->prev = MY_POOL.main_thread.prev; |
620 | MY_POOL.main_thread.prev = thread; |
fc04eb16 |
621 | thread->prev->next = thread; |
c05ae023 |
622 | |
fc04eb16 |
623 | /* Set count to 1 immediately in case thread exits before |
624 | * we return to caller! |
625 | */ |
626 | thread->count = 1; |
627 | |
9ca4d7fd |
628 | /* Block new thread until ->create() call finishes */ |
fc04eb16 |
629 | MUTEX_INIT(&thread->mutex); |
9ca4d7fd |
630 | MUTEX_LOCK(&thread->mutex); |
631 | |
5c6ff896 |
632 | thread->tid = MY_POOL.tid_counter++; |
861d5cbe |
633 | thread->stack_size = S_good_stack_size(aTHX_ stack_size); |
9d9ff5b1 |
634 | thread->gimme = gimme; |
69a9b4b8 |
635 | thread->state = exit_opt; |
fc04eb16 |
636 | |
637 | /* "Clone" our interpreter into the thread's interpreter. |
638 | * This gives thread access to "static data" and code. |
639 | */ |
640 | PerlIO_flush((PerlIO *)NULL); |
641 | S_ithread_set(aTHX_ thread); |
642 | |
643 | SAVEBOOL(PL_srand_called); /* Save this so it becomes the correct value */ |
644 | PL_srand_called = FALSE; /* Set it to false so we can detect if it gets |
645 | set during the clone */ |
3b1c3273 |
646 | |
47ba8780 |
647 | #ifdef WIN32 |
fc04eb16 |
648 | thread->interp = perl_clone(aTHX, CLONEf_KEEP_PTR_TABLE | CLONEf_CLONE_HOST); |
47ba8780 |
649 | #else |
fc04eb16 |
650 | thread->interp = perl_clone(aTHX, CLONEf_KEEP_PTR_TABLE); |
47ba8780 |
651 | #endif |
47ba8780 |
652 | |
fc04eb16 |
653 | /* perl_clone() leaves us in new interpreter's context. As it is tricky |
654 | * to spot an implicit aTHX, create a new scope with aTHX matching the |
655 | * context for the duration of our work for new interpreter. |
656 | */ |
657 | { |
894eec8b |
658 | CLONE_PARAMS clone_param; |
659 | |
fc04eb16 |
660 | dTHXa(thread->interp); |
661 | |
662 | MY_CXT_CLONE; |
663 | |
664 | /* Here we remove END blocks since they should only run in the thread |
665 | * they are created |
666 | */ |
667 | SvREFCNT_dec(PL_endav); |
668 | PL_endav = newAV(); |
404aaa48 |
669 | |
894eec8b |
670 | clone_param.flags = 0; |
f2e0bb91 |
671 | if (SvPOK(init_function)) { |
672 | thread->init_function = newSV(0); |
673 | sv_copypv(thread->init_function, init_function); |
674 | } else { |
f2e0bb91 |
675 | thread->init_function = sv_dup(init_function, &clone_param); |
676 | if (SvREFCNT(thread->init_function) == 0) { |
d4315dd6 |
677 | SvREFCNT_inc_void(thread->init_function); |
f2e0bb91 |
678 | } |
fc04eb16 |
679 | } |
680 | |
681 | thread->params = sv_dup(params, &clone_param); |
d4315dd6 |
682 | SvREFCNT_inc_void(thread->params); |
fc04eb16 |
683 | |
684 | /* The code below checks that anything living on the tmps stack and |
685 | * has been cloned (so it lives in the ptr_table) has a refcount |
686 | * higher than 0. |
687 | * |
688 | * If the refcount is 0 it means that a something on the stack/context |
689 | * was holding a reference to it and since we init_stacks() in |
690 | * perl_clone that won't get cleaned and we will get a leaked scalar. |
691 | * The reason it was cloned was that it lived on the @_ stack. |
692 | * |
693 | * Example of this can be found in bugreport 15837 where calls in the |
694 | * parameter list end up as a temp. |
695 | * |
696 | * One could argue that this fix should be in perl_clone. |
697 | */ |
698 | while (tmps_ix > 0) { |
699 | SV* sv = (SV*)ptr_table_fetch(PL_ptr_table, tmps_tmp[tmps_ix]); |
700 | tmps_ix--; |
701 | if (sv && SvREFCNT(sv) == 0) { |
d4315dd6 |
702 | SvREFCNT_inc_void(sv); |
fc04eb16 |
703 | SvREFCNT_dec(sv); |
704 | } |
705 | } |
706 | |
707 | SvTEMP_off(thread->init_function); |
708 | ptr_table_free(PL_ptr_table); |
709 | PL_ptr_table = NULL; |
710 | PL_exit_flags |= PERL_EXIT_DESTRUCT_END; |
711 | } |
712 | S_ithread_set(aTHX_ current_thread); |
713 | PERL_SET_CONTEXT(aTHX); |
714 | |
715 | /* Create/start the thread */ |
47ba8780 |
716 | #ifdef WIN32 |
fc04eb16 |
717 | thread->handle = CreateThread(NULL, |
514612b7 |
718 | (DWORD)thread->stack_size, |
fc04eb16 |
719 | S_ithread_run, |
720 | (LPVOID)thread, |
514612b7 |
721 | STACK_SIZE_PARAM_IS_A_RESERVATION, |
fc04eb16 |
722 | &thread->thr); |
82c40bf6 |
723 | #else |
fc04eb16 |
724 | { |
861d5cbe |
725 | STATIC pthread_attr_t attr; |
726 | STATIC int attr_inited = 0; |
727 | STATIC int attr_joinable = PTHREAD_CREATE_JOINABLE; |
fc04eb16 |
728 | if (! attr_inited) { |
729 | pthread_attr_init(&attr); |
730 | attr_inited = 1; |
731 | } |
732 | |
fa26028c |
733 | # ifdef PTHREAD_ATTR_SETDETACHSTATE |
fc04eb16 |
734 | /* Threads start out joinable */ |
735 | PTHREAD_ATTR_SETDETACHSTATE(&attr, attr_joinable); |
fa26028c |
736 | # endif |
fc04eb16 |
737 | |
514612b7 |
738 | # ifdef _POSIX_THREAD_ATTR_STACKSIZE |
fc04eb16 |
739 | /* Set thread's stack size */ |
514612b7 |
740 | if (thread->stack_size > 0) { |
741 | rc_stack_size = pthread_attr_setstacksize(&attr, (size_t)thread->stack_size); |
742 | } |
3eb37d38 |
743 | # endif |
744 | |
fc04eb16 |
745 | /* Create the thread */ |
746 | if (! rc_stack_size) { |
747 | # ifdef OLD_PTHREADS_API |
748 | rc_thread_create = pthread_create(&thread->thr, |
749 | attr, |
750 | S_ithread_run, |
751 | (void *)thread); |
752 | # else |
753 | # if defined(HAS_PTHREAD_ATTR_SETSCOPE) && defined(PTHREAD_SCOPE_SYSTEM) |
754 | pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); |
755 | # endif |
756 | rc_thread_create = pthread_create(&thread->thr, |
757 | &attr, |
758 | S_ithread_run, |
759 | (void *)thread); |
19a077f6 |
760 | # endif |
fc04eb16 |
761 | } |
514612b7 |
762 | |
763 | # ifdef _POSIX_THREAD_ATTR_STACKSIZE |
764 | /* Try to get thread's actual stack size */ |
765 | { |
766 | size_t stacksize; |
58a3a76c |
767 | #ifdef HPUX1020 |
768 | stacksize = pthread_attr_getstacksize(attr); |
769 | #else |
770 | if (! pthread_attr_getstacksize(&attr, &stacksize)) |
771 | #endif |
772 | if (stacksize > 0) { |
514612b7 |
773 | thread->stack_size = (IV)stacksize; |
774 | } |
514612b7 |
775 | } |
776 | # endif |
fc04eb16 |
777 | } |
82c40bf6 |
778 | #endif |
bcd9ca9b |
779 | |
fc04eb16 |
780 | /* Check for errors */ |
d94006e8 |
781 | #ifdef WIN32 |
fc04eb16 |
782 | if (thread->handle == NULL) { |
d94006e8 |
783 | #else |
fc04eb16 |
784 | if (rc_stack_size || rc_thread_create) { |
d94006e8 |
785 | #endif |
9ca4d7fd |
786 | /* Must unlock mutex for destruct call */ |
5c6ff896 |
787 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
fc04eb16 |
788 | sv_2mortal(params); |
adc09a0e |
789 | thread->state |= PERL_ITHR_NONVIABLE; |
fc04eb16 |
790 | S_ithread_destruct(aTHX_ thread); |
d94006e8 |
791 | #ifndef WIN32 |
514612b7 |
792 | if (ckWARN_d(WARN_THREADS)) { |
fea7688c |
793 | if (rc_stack_size) { |
514612b7 |
794 | Perl_warn(aTHX_ "Thread creation failed: pthread_attr_setstacksize(%" IVdf ") returned %d", thread->stack_size, rc_stack_size); |
fea7688c |
795 | } else { |
514612b7 |
796 | Perl_warn(aTHX_ "Thread creation failed: pthread_create returned %d", rc_thread_create); |
fea7688c |
797 | } |
514612b7 |
798 | } |
d94006e8 |
799 | #endif |
9ca4d7fd |
800 | return (NULL); |
fc04eb16 |
801 | } |
802 | |
5c6ff896 |
803 | MY_POOL.running_threads++; |
fc04eb16 |
804 | sv_2mortal(params); |
9ca4d7fd |
805 | return (thread); |
68795e93 |
806 | } |
47ba8780 |
807 | |
73e09c8f |
808 | #endif /* USE_ITHREADS */ |
e1c44605 |
809 | |
fcea4b7c |
810 | |
fc04eb16 |
811 | MODULE = threads PACKAGE = threads PREFIX = ithread_ |
68795e93 |
812 | PROTOTYPES: DISABLE |
8222d950 |
813 | |
73e09c8f |
814 | #ifdef USE_ITHREADS |
815 | |
68795e93 |
816 | void |
f4cc38af |
817 | ithread_create(...) |
818 | PREINIT: |
819 | char *classname; |
514612b7 |
820 | ithread *thread; |
f4cc38af |
821 | SV *function_to_call; |
822 | AV *params; |
514612b7 |
823 | HV *specs; |
824 | IV stack_size; |
9d9ff5b1 |
825 | int context; |
69a9b4b8 |
826 | int exit_opt; |
827 | SV *thread_exit_only; |
9d9ff5b1 |
828 | char *str; |
514612b7 |
829 | int idx; |
f4cc38af |
830 | int ii; |
5c6ff896 |
831 | dMY_POOL; |
f4cc38af |
832 | CODE: |
514612b7 |
833 | if ((items >= 2) && SvROK(ST(1)) && SvTYPE(SvRV(ST(1)))==SVt_PVHV) { |
fea7688c |
834 | if (--items < 2) { |
514612b7 |
835 | Perl_croak(aTHX_ "Usage: threads->create(\\%specs, function, ...)"); |
fea7688c |
836 | } |
514612b7 |
837 | specs = (HV*)SvRV(ST(1)); |
838 | idx = 1; |
839 | } else { |
fea7688c |
840 | if (items < 2) { |
514612b7 |
841 | Perl_croak(aTHX_ "Usage: threads->create(function, ...)"); |
fea7688c |
842 | } |
514612b7 |
843 | specs = NULL; |
844 | idx = 0; |
845 | } |
f4cc38af |
846 | |
514612b7 |
847 | if (sv_isobject(ST(0))) { |
848 | /* $thr->create() */ |
849 | classname = HvNAME(SvSTASH(SvRV(ST(0)))); |
850 | thread = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
8718f9a1 |
851 | MUTEX_LOCK(&thread->mutex); |
514612b7 |
852 | stack_size = thread->stack_size; |
69a9b4b8 |
853 | exit_opt = thread->state & PERL_ITHR_THREAD_EXIT_ONLY; |
8718f9a1 |
854 | MUTEX_UNLOCK(&thread->mutex); |
514612b7 |
855 | } else { |
856 | /* threads->create() */ |
857 | classname = (char *)SvPV_nolen(ST(0)); |
5c6ff896 |
858 | stack_size = MY_POOL.default_stack_size; |
69a9b4b8 |
859 | thread_exit_only = get_sv("threads::thread_exit_only", TRUE); |
860 | exit_opt = (SvTRUE(thread_exit_only)) |
861 | ? PERL_ITHR_THREAD_EXIT_ONLY : 0; |
514612b7 |
862 | } |
863 | |
864 | function_to_call = ST(idx+1); |
865 | |
9d9ff5b1 |
866 | context = -1; |
514612b7 |
867 | if (specs) { |
868 | /* stack_size */ |
869 | if (hv_exists(specs, "stack", 5)) { |
870 | stack_size = SvIV(*hv_fetch(specs, "stack", 5, 0)); |
871 | } else if (hv_exists(specs, "stacksize", 9)) { |
872 | stack_size = SvIV(*hv_fetch(specs, "stacksize", 9, 0)); |
873 | } else if (hv_exists(specs, "stack_size", 10)) { |
874 | stack_size = SvIV(*hv_fetch(specs, "stack_size", 10, 0)); |
875 | } |
9d9ff5b1 |
876 | |
877 | /* context */ |
878 | if (hv_exists(specs, "context", 7)) { |
879 | str = (char *)SvPV_nolen(*hv_fetch(specs, "context", 7, 0)); |
880 | switch (*str) { |
881 | case 'a': |
882 | case 'A': |
883 | context = G_ARRAY; |
884 | break; |
885 | case 's': |
886 | case 'S': |
887 | context = G_SCALAR; |
888 | break; |
889 | case 'v': |
890 | case 'V': |
891 | context = G_VOID; |
892 | break; |
893 | default: |
894 | Perl_croak(aTHX_ "Invalid context: %s", str); |
895 | } |
896 | } else if (hv_exists(specs, "array", 5)) { |
897 | if (SvTRUE(*hv_fetch(specs, "array", 5, 0))) { |
898 | context = G_ARRAY; |
899 | } |
900 | } else if (hv_exists(specs, "scalar", 6)) { |
901 | if (SvTRUE(*hv_fetch(specs, "scalar", 6, 0))) { |
902 | context = G_SCALAR; |
903 | } |
904 | } else if (hv_exists(specs, "void", 4)) { |
905 | if (SvTRUE(*hv_fetch(specs, "void", 4, 0))) { |
906 | context = G_VOID; |
907 | } |
908 | } |
69a9b4b8 |
909 | |
910 | /* exit => thread_only */ |
911 | if (hv_exists(specs, "exit", 4)) { |
912 | str = (char *)SvPV_nolen(*hv_fetch(specs, "exit", 4, 0)); |
913 | exit_opt = (*str == 't' || *str == 'T') |
914 | ? PERL_ITHR_THREAD_EXIT_ONLY : 0; |
915 | } |
9d9ff5b1 |
916 | } |
917 | if (context == -1) { |
918 | context = GIMME_V; /* Implicit context */ |
919 | } else { |
920 | context |= (GIMME_V & (~(G_ARRAY|G_SCALAR|G_VOID))); |
514612b7 |
921 | } |
f4cc38af |
922 | |
923 | /* Function args */ |
924 | params = newAV(); |
925 | if (items > 2) { |
514612b7 |
926 | for (ii=2; ii < items ; ii++) { |
927 | av_push(params, SvREFCNT_inc(ST(idx+ii))); |
f4cc38af |
928 | } |
929 | } |
930 | |
931 | /* Create thread */ |
5c6ff896 |
932 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
9ca4d7fd |
933 | thread = S_ithread_create(aTHX_ function_to_call, |
934 | stack_size, |
935 | context, |
936 | exit_opt, |
937 | newRV_noinc((SV*)params)); |
938 | if (! thread) { |
939 | XSRETURN_UNDEF; /* Mutex already unlocked */ |
940 | } |
861d5cbe |
941 | ST(0) = sv_2mortal(S_ithread_to_SV(aTHX_ Nullsv, thread, classname, FALSE)); |
adc09a0e |
942 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
9ca4d7fd |
943 | |
944 | /* Let thread run */ |
945 | MUTEX_UNLOCK(&thread->mutex); |
9ca4d7fd |
946 | |
f4cc38af |
947 | /* XSRETURN(1); - implied */ |
948 | |
8222d950 |
949 | |
68795e93 |
950 | void |
f4cc38af |
951 | ithread_list(...) |
952 | PREINIT: |
953 | char *classname; |
fc04eb16 |
954 | ithread *thread; |
f4cc38af |
955 | int list_context; |
956 | IV count = 0; |
11db694d |
957 | int want_running = 0; |
8718f9a1 |
958 | int state; |
5c6ff896 |
959 | dMY_POOL; |
f4cc38af |
960 | PPCODE: |
961 | /* Class method only */ |
fea7688c |
962 | if (SvROK(ST(0))) { |
ead32952 |
963 | Perl_croak(aTHX_ "Usage: threads->list(...)"); |
fea7688c |
964 | } |
f4cc38af |
965 | classname = (char *)SvPV_nolen(ST(0)); |
966 | |
967 | /* Calling context */ |
968 | list_context = (GIMME_V == G_ARRAY); |
969 | |
ead32952 |
970 | /* Running or joinable parameter */ |
971 | if (items > 1) { |
972 | want_running = SvTRUE(ST(1)); |
973 | } |
974 | |
f4cc38af |
975 | /* Walk through threads list */ |
5c6ff896 |
976 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
977 | for (thread = MY_POOL.main_thread.next; |
978 | thread != &MY_POOL.main_thread; |
fc04eb16 |
979 | thread = thread->next) |
f4cc38af |
980 | { |
8718f9a1 |
981 | MUTEX_LOCK(&thread->mutex); |
982 | state = thread->state; |
983 | MUTEX_UNLOCK(&thread->mutex); |
984 | |
f4cc38af |
985 | /* Ignore detached or joined threads */ |
8718f9a1 |
986 | if (state & PERL_ITHR_UNCALLABLE) { |
f4cc38af |
987 | continue; |
988 | } |
ead32952 |
989 | |
990 | /* Filter per parameter */ |
991 | if (items > 1) { |
992 | if (want_running) { |
8718f9a1 |
993 | if (state & PERL_ITHR_FINISHED) { |
ead32952 |
994 | continue; /* Not running */ |
995 | } |
996 | } else { |
8718f9a1 |
997 | if (! (state & PERL_ITHR_FINISHED)) { |
ead32952 |
998 | continue; /* Still running - not joinable yet */ |
999 | } |
1000 | } |
1001 | } |
1002 | |
f4cc38af |
1003 | /* Push object on stack if list context */ |
1004 | if (list_context) { |
861d5cbe |
1005 | XPUSHs(sv_2mortal(S_ithread_to_SV(aTHX_ Nullsv, thread, classname, TRUE))); |
f4cc38af |
1006 | } |
1007 | count++; |
1008 | } |
5c6ff896 |
1009 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
f4cc38af |
1010 | /* If scalar context, send back count */ |
1011 | if (! list_context) { |
1012 | XSRETURN_IV(count); |
1013 | } |
678a9b6c |
1014 | |
1015 | |
1016 | void |
f4cc38af |
1017 | ithread_self(...) |
1018 | PREINIT: |
1019 | char *classname; |
fcea4b7c |
1020 | ithread *thread; |
f4cc38af |
1021 | CODE: |
1022 | /* Class method only */ |
11db694d |
1023 | if ((items != 1) || SvROK(ST(0))) { |
f4cc38af |
1024 | Perl_croak(aTHX_ "Usage: threads->self()"); |
fea7688c |
1025 | } |
f4cc38af |
1026 | classname = (char *)SvPV_nolen(ST(0)); |
1027 | |
fcea4b7c |
1028 | thread = S_ithread_get(aTHX); |
1029 | |
861d5cbe |
1030 | ST(0) = sv_2mortal(S_ithread_to_SV(aTHX_ Nullsv, thread, classname, TRUE)); |
f4cc38af |
1031 | /* XSRETURN(1); - implied */ |
47ba8780 |
1032 | |
47ba8780 |
1033 | |
1034 | void |
f4cc38af |
1035 | ithread_tid(...) |
1036 | PREINIT: |
1037 | ithread *thread; |
1038 | CODE: |
11db694d |
1039 | PERL_UNUSED_VAR(items); |
861d5cbe |
1040 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
f4cc38af |
1041 | XST_mUV(0, thread->tid); |
1042 | /* XSRETURN(1); - implied */ |
1043 | |
e1c44605 |
1044 | |
f9dff5f5 |
1045 | void |
f4cc38af |
1046 | ithread_join(...) |
1047 | PREINIT: |
fcea4b7c |
1048 | ithread *thread; |
8718f9a1 |
1049 | ithread *current_thread; |
fcea4b7c |
1050 | int join_err; |
f4cc38af |
1051 | AV *params; |
1052 | int len; |
1053 | int ii; |
fcea4b7c |
1054 | #ifdef WIN32 |
1055 | DWORD waitcode; |
1056 | #else |
8718f9a1 |
1057 | int rc_join; |
fcea4b7c |
1058 | void *retval; |
1059 | #endif |
5c6ff896 |
1060 | dMY_POOL; |
f4cc38af |
1061 | PPCODE: |
1062 | /* Object method only */ |
11db694d |
1063 | if ((items != 1) || ! sv_isobject(ST(0))) { |
f4cc38af |
1064 | Perl_croak(aTHX_ "Usage: $thr->join()"); |
fea7688c |
1065 | } |
f4cc38af |
1066 | |
8718f9a1 |
1067 | /* Check if the thread is joinable and not ourselves */ |
861d5cbe |
1068 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
8718f9a1 |
1069 | current_thread = S_ithread_get(aTHX); |
1070 | |
1071 | MUTEX_LOCK(&thread->mutex); |
1072 | if ((join_err = (thread->state & PERL_ITHR_UNCALLABLE))) { |
1073 | MUTEX_UNLOCK(&thread->mutex); |
1074 | Perl_croak(aTHX_ (join_err & PERL_ITHR_DETACHED) |
1075 | ? "Cannot join a detached thread" |
1076 | : "Thread already joined"); |
1077 | } else if (thread->tid == current_thread->tid) { |
1078 | MUTEX_UNLOCK(&thread->mutex); |
1079 | Perl_croak(aTHX_ "Cannot join self"); |
fcea4b7c |
1080 | } |
1081 | |
8718f9a1 |
1082 | /* Mark as joined */ |
1083 | thread->state |= PERL_ITHR_JOINED; |
1084 | MUTEX_UNLOCK(&thread->mutex); |
1085 | |
1086 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
1087 | MY_POOL.joinable_threads--; |
1088 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
1089 | |
fcea4b7c |
1090 | /* Join the thread */ |
1091 | #ifdef WIN32 |
8718f9a1 |
1092 | if (WaitForSingleObject(thread->handle, INFINITE) != WAIT_OBJECT_0) { |
1093 | /* Timeout/abandonment unexpected here; check $^E */ |
1094 | Perl_croak(aTHX_ "PANIC: underlying join failed"); |
1095 | }; |
fcea4b7c |
1096 | #else |
8718f9a1 |
1097 | if ((rc_join = pthread_join(thread->thr, &retval)) != 0) { |
1098 | /* In progress/deadlock/unknown unexpected here; check $! */ |
1099 | errno = rc_join; |
1100 | Perl_croak(aTHX_ "PANIC: underlying join failed"); |
1101 | }; |
fcea4b7c |
1102 | #endif |
1103 | |
1104 | MUTEX_LOCK(&thread->mutex); |
fcea4b7c |
1105 | /* Get the return value from the call_sv */ |
955c272e |
1106 | /* Objects do not survive this process - FIXME */ |
fcea4b7c |
1107 | { |
1108 | AV *params_copy; |
1109 | PerlInterpreter *other_perl; |
1110 | CLONE_PARAMS clone_params; |
fcea4b7c |
1111 | |
1112 | params_copy = (AV *)SvRV(thread->params); |
1113 | other_perl = thread->interp; |
1114 | clone_params.stashes = newAV(); |
1115 | clone_params.flags = CLONEf_JOIN_IN; |
1116 | PL_ptr_table = ptr_table_new(); |
fcea4b7c |
1117 | S_ithread_set(aTHX_ thread); |
1118 | /* Ensure 'meaningful' addresses retain their meaning */ |
1119 | ptr_table_store(PL_ptr_table, &other_perl->Isv_undef, &PL_sv_undef); |
1120 | ptr_table_store(PL_ptr_table, &other_perl->Isv_no, &PL_sv_no); |
1121 | ptr_table_store(PL_ptr_table, &other_perl->Isv_yes, &PL_sv_yes); |
1122 | params = (AV *)sv_dup((SV*)params_copy, &clone_params); |
1123 | S_ithread_set(aTHX_ current_thread); |
1124 | SvREFCNT_dec(clone_params.stashes); |
d4315dd6 |
1125 | SvREFCNT_inc_void(params); |
fcea4b7c |
1126 | ptr_table_free(PL_ptr_table); |
1127 | PL_ptr_table = NULL; |
1128 | } |
1129 | |
955c272e |
1130 | /* If thread didn't die, then we can free its interpreter */ |
1131 | if (! (thread->state & PERL_ITHR_DIED)) { |
1132 | S_ithread_clear(aTHX_ thread); |
1133 | } |
fcea4b7c |
1134 | MUTEX_UNLOCK(&thread->mutex); |
1135 | |
955c272e |
1136 | /* Try to cleanup thread */ |
1137 | S_ithread_destruct(aTHX_ thread); |
1138 | |
fcea4b7c |
1139 | /* If no return values, then just return */ |
f4cc38af |
1140 | if (! params) { |
1141 | XSRETURN_UNDEF; |
1142 | } |
1143 | |
1144 | /* Put return values on stack */ |
1145 | len = (int)AvFILL(params); |
1146 | for (ii=0; ii <= len; ii++) { |
1147 | SV* param = av_shift(params); |
1148 | XPUSHs(sv_2mortal(param)); |
1149 | } |
1150 | |
1151 | /* Free return value array */ |
1152 | SvREFCNT_dec(params); |
1153 | |
1154 | |
1155 | void |
1156 | ithread_yield(...) |
1157 | CODE: |
11db694d |
1158 | PERL_UNUSED_VAR(items); |
f4cc38af |
1159 | YIELD; |
1160 | |
1161 | |
1162 | void |
1163 | ithread_detach(...) |
1164 | PREINIT: |
1165 | ithread *thread; |
fcea4b7c |
1166 | int detach_err; |
5c6ff896 |
1167 | dMY_POOL; |
f4cc38af |
1168 | CODE: |
11db694d |
1169 | PERL_UNUSED_VAR(items); |
1170 | |
fcea4b7c |
1171 | /* Detach the thread */ |
8718f9a1 |
1172 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
5c6ff896 |
1173 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
9ca4d7fd |
1174 | MUTEX_LOCK(&thread->mutex); |
8718f9a1 |
1175 | if (! (detach_err = (thread->state & PERL_ITHR_UNCALLABLE))) { |
1176 | /* Thread is detachable */ |
1177 | thread->state |= PERL_ITHR_DETACHED; |
fcea4b7c |
1178 | #ifdef WIN32 |
8718f9a1 |
1179 | /* Windows has no 'detach thread' function */ |
fcea4b7c |
1180 | #else |
8718f9a1 |
1181 | PERL_THREAD_DETACH(thread->thr); |
fcea4b7c |
1182 | #endif |
8718f9a1 |
1183 | if (thread->state & PERL_ITHR_FINISHED) { |
1184 | MY_POOL.joinable_threads--; |
1185 | } else { |
1186 | MY_POOL.running_threads--; |
1187 | MY_POOL.detached_threads++; |
1188 | } |
4dcb9e53 |
1189 | } |
adc09a0e |
1190 | MUTEX_UNLOCK(&thread->mutex); |
5c6ff896 |
1191 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
4dcb9e53 |
1192 | |
8718f9a1 |
1193 | if (detach_err) { |
1194 | Perl_croak(aTHX_ (detach_err & PERL_ITHR_DETACHED) |
1195 | ? "Thread already detached" |
1196 | : "Cannot detach a joined thread"); |
1197 | } |
1198 | |
955c272e |
1199 | /* If thread is finished and didn't die, |
1200 | * then we can free its interpreter */ |
1201 | MUTEX_LOCK(&thread->mutex); |
1202 | if ((thread->state & PERL_ITHR_FINISHED) && |
1203 | ! (thread->state & PERL_ITHR_DIED)) |
1204 | { |
1205 | S_ithread_clear(aTHX_ thread); |
1206 | } |
1207 | MUTEX_UNLOCK(&thread->mutex); |
1208 | |
adc09a0e |
1209 | /* Try to cleanup thread */ |
1210 | S_ithread_destruct(aTHX_ thread); |
f4cc38af |
1211 | |
47ba8780 |
1212 | |
1213 | void |
c0003851 |
1214 | ithread_kill(...) |
1215 | PREINIT: |
1216 | ithread *thread; |
1217 | char *sig_name; |
1218 | IV signal; |
1219 | CODE: |
1220 | /* Must have safe signals */ |
fea7688c |
1221 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) { |
4dcb9e53 |
1222 | Perl_croak(aTHX_ "Cannot signal threads without safe signals"); |
fea7688c |
1223 | } |
c0003851 |
1224 | |
1225 | /* Object method only */ |
11db694d |
1226 | if ((items != 2) || ! sv_isobject(ST(0))) { |
c0003851 |
1227 | Perl_croak(aTHX_ "Usage: $thr->kill('SIG...')"); |
fea7688c |
1228 | } |
c0003851 |
1229 | |
c0003851 |
1230 | /* Get signal */ |
1231 | sig_name = SvPV_nolen(ST(1)); |
1232 | if (isALPHA(*sig_name)) { |
fea7688c |
1233 | if (*sig_name == 'S' && sig_name[1] == 'I' && sig_name[2] == 'G') { |
c0003851 |
1234 | sig_name += 3; |
fea7688c |
1235 | } |
1236 | if ((signal = whichsig(sig_name)) < 0) { |
c0003851 |
1237 | Perl_croak(aTHX_ "Unrecognized signal name: %s", sig_name); |
fea7688c |
1238 | } |
1239 | } else { |
c0003851 |
1240 | signal = SvIV(ST(1)); |
fea7688c |
1241 | } |
c0003851 |
1242 | |
1243 | /* Set the signal for the thread */ |
861d5cbe |
1244 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
4dcb9e53 |
1245 | MUTEX_LOCK(&thread->mutex); |
3ceb02cd |
1246 | if (thread->interp) { |
c0003851 |
1247 | dTHXa(thread->interp); |
1248 | PL_psig_pend[signal]++; |
1249 | PL_sig_pending = 1; |
1250 | } |
4dcb9e53 |
1251 | MUTEX_UNLOCK(&thread->mutex); |
c0003851 |
1252 | |
1253 | /* Return the thread to allow for method chaining */ |
1254 | ST(0) = ST(0); |
1255 | /* XSRETURN(1); - implied */ |
1256 | |
1257 | |
1258 | void |
f4cc38af |
1259 | ithread_DESTROY(...) |
1260 | CODE: |
11db694d |
1261 | PERL_UNUSED_VAR(items); |
fcea4b7c |
1262 | sv_unmagic(SvRV(ST(0)), PERL_MAGIC_shared_scalar); |
f4cc38af |
1263 | |
1264 | |
1265 | void |
1266 | ithread_equal(...) |
fc04eb16 |
1267 | PREINIT: |
1268 | int are_equal = 0; |
f4cc38af |
1269 | CODE: |
11db694d |
1270 | PERL_UNUSED_VAR(items); |
1271 | |
fc04eb16 |
1272 | /* Compares TIDs to determine thread equality */ |
f4cc38af |
1273 | if (sv_isobject(ST(0)) && sv_isobject(ST(1))) { |
1274 | ithread *thr1 = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
1275 | ithread *thr2 = INT2PTR(ithread *, SvIV(SvRV(ST(1)))); |
fc04eb16 |
1276 | are_equal = (thr1->tid == thr2->tid); |
1277 | } |
1278 | if (are_equal) { |
1279 | XST_mYES(0); |
f4cc38af |
1280 | } else { |
fc04eb16 |
1281 | /* Return 0 on false for backward compatibility */ |
f4cc38af |
1282 | XST_mIV(0, 0); |
1283 | } |
1284 | /* XSRETURN(1); - implied */ |
1285 | |
47ba8780 |
1286 | |
47ba8780 |
1287 | void |
f4cc38af |
1288 | ithread_object(...) |
1289 | PREINIT: |
1290 | char *classname; |
1291 | UV tid; |
fc04eb16 |
1292 | ithread *thread; |
8718f9a1 |
1293 | int state; |
9ca4d7fd |
1294 | int have_obj = 0; |
5c6ff896 |
1295 | dMY_POOL; |
f4cc38af |
1296 | CODE: |
1297 | /* Class method only */ |
fea7688c |
1298 | if (SvROK(ST(0))) { |
f4cc38af |
1299 | Perl_croak(aTHX_ "Usage: threads->object($tid)"); |
fea7688c |
1300 | } |
f4cc38af |
1301 | classname = (char *)SvPV_nolen(ST(0)); |
1302 | |
1303 | if ((items < 2) || ! SvOK(ST(1))) { |
1304 | XSRETURN_UNDEF; |
1305 | } |
1306 | |
fc04eb16 |
1307 | /* threads->object($tid) */ |
f4cc38af |
1308 | tid = SvUV(ST(1)); |
1309 | |
1310 | /* Walk through threads list */ |
5c6ff896 |
1311 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
1312 | for (thread = MY_POOL.main_thread.next; |
1313 | thread != &MY_POOL.main_thread; |
fc04eb16 |
1314 | thread = thread->next) |
f4cc38af |
1315 | { |
9ca4d7fd |
1316 | /* Look for TID */ |
1317 | if (thread->tid == tid) { |
1318 | /* Ignore if detached or joined */ |
8718f9a1 |
1319 | MUTEX_LOCK(&thread->mutex); |
1320 | state = thread->state; |
1321 | MUTEX_UNLOCK(&thread->mutex); |
1322 | if (! (state & PERL_ITHR_UNCALLABLE)) { |
9ca4d7fd |
1323 | /* Put object on stack */ |
861d5cbe |
1324 | ST(0) = sv_2mortal(S_ithread_to_SV(aTHX_ Nullsv, thread, classname, TRUE)); |
9ca4d7fd |
1325 | have_obj = 1; |
1326 | } |
1327 | break; |
f4cc38af |
1328 | } |
f4cc38af |
1329 | } |
5c6ff896 |
1330 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
9ca4d7fd |
1331 | |
1332 | if (! have_obj) { |
f4cc38af |
1333 | XSRETURN_UNDEF; |
1334 | } |
1335 | /* XSRETURN(1); - implied */ |
1336 | |
1337 | |
1338 | void |
1339 | ithread__handle(...); |
1340 | PREINIT: |
1341 | ithread *thread; |
1342 | CODE: |
11db694d |
1343 | PERL_UNUSED_VAR(items); |
861d5cbe |
1344 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
f4cc38af |
1345 | #ifdef WIN32 |
fcea4b7c |
1346 | XST_mUV(0, PTR2UV(&thread->handle)); |
f4cc38af |
1347 | #else |
75ba4ae2 |
1348 | XST_mUV(0, PTR2UV(&thread->thr)); |
f4cc38af |
1349 | #endif |
1350 | /* XSRETURN(1); - implied */ |
68795e93 |
1351 | |
514612b7 |
1352 | |
1353 | void |
1354 | ithread_get_stack_size(...) |
1355 | PREINIT: |
1356 | IV stack_size; |
5c6ff896 |
1357 | dMY_POOL; |
514612b7 |
1358 | CODE: |
11db694d |
1359 | PERL_UNUSED_VAR(items); |
514612b7 |
1360 | if (sv_isobject(ST(0))) { |
1361 | /* $thr->get_stack_size() */ |
1362 | ithread *thread = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
1363 | stack_size = thread->stack_size; |
1364 | } else { |
1365 | /* threads->get_stack_size() */ |
5c6ff896 |
1366 | stack_size = MY_POOL.default_stack_size; |
514612b7 |
1367 | } |
1368 | XST_mIV(0, stack_size); |
1369 | /* XSRETURN(1); - implied */ |
1370 | |
1371 | |
1372 | void |
1373 | ithread_set_stack_size(...) |
1374 | PREINIT: |
1375 | IV old_size; |
5c6ff896 |
1376 | dMY_POOL; |
514612b7 |
1377 | CODE: |
fea7688c |
1378 | if (items != 2) { |
514612b7 |
1379 | Perl_croak(aTHX_ "Usage: threads->set_stack_size($size)"); |
fea7688c |
1380 | } |
1381 | if (sv_isobject(ST(0))) { |
514612b7 |
1382 | Perl_croak(aTHX_ "Cannot change stack size of an existing thread"); |
fea7688c |
1383 | } |
514612b7 |
1384 | |
5c6ff896 |
1385 | old_size = MY_POOL.default_stack_size; |
1386 | MY_POOL.default_stack_size = S_good_stack_size(aTHX_ SvIV(ST(1))); |
514612b7 |
1387 | XST_mIV(0, old_size); |
1388 | /* XSRETURN(1); - implied */ |
1389 | |
ead32952 |
1390 | |
1391 | void |
1392 | ithread_is_running(...) |
1393 | PREINIT: |
1394 | ithread *thread; |
1395 | CODE: |
1396 | /* Object method only */ |
11db694d |
1397 | if ((items != 1) || ! sv_isobject(ST(0))) { |
ead32952 |
1398 | Perl_croak(aTHX_ "Usage: $thr->is_running()"); |
fea7688c |
1399 | } |
ead32952 |
1400 | |
1401 | thread = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
8718f9a1 |
1402 | MUTEX_LOCK(&thread->mutex); |
ead32952 |
1403 | ST(0) = (thread->state & PERL_ITHR_FINISHED) ? &PL_sv_no : &PL_sv_yes; |
8718f9a1 |
1404 | MUTEX_UNLOCK(&thread->mutex); |
ead32952 |
1405 | /* XSRETURN(1); - implied */ |
1406 | |
1407 | |
1408 | void |
1409 | ithread_is_detached(...) |
1410 | PREINIT: |
1411 | ithread *thread; |
1412 | CODE: |
11db694d |
1413 | PERL_UNUSED_VAR(items); |
861d5cbe |
1414 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
8718f9a1 |
1415 | MUTEX_LOCK(&thread->mutex); |
ead32952 |
1416 | ST(0) = (thread->state & PERL_ITHR_DETACHED) ? &PL_sv_yes : &PL_sv_no; |
8718f9a1 |
1417 | MUTEX_UNLOCK(&thread->mutex); |
ead32952 |
1418 | /* XSRETURN(1); - implied */ |
1419 | |
1420 | |
1421 | void |
1422 | ithread_is_joinable(...) |
1423 | PREINIT: |
1424 | ithread *thread; |
1425 | CODE: |
1426 | /* Object method only */ |
11db694d |
1427 | if ((items != 1) || ! sv_isobject(ST(0))) { |
ead32952 |
1428 | Perl_croak(aTHX_ "Usage: $thr->is_joinable()"); |
fea7688c |
1429 | } |
ead32952 |
1430 | |
1431 | thread = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
1432 | MUTEX_LOCK(&thread->mutex); |
1433 | ST(0) = ((thread->state & PERL_ITHR_FINISHED) && |
8718f9a1 |
1434 | ! (thread->state & PERL_ITHR_UNCALLABLE)) |
ead32952 |
1435 | ? &PL_sv_yes : &PL_sv_no; |
1436 | MUTEX_UNLOCK(&thread->mutex); |
1437 | /* XSRETURN(1); - implied */ |
1438 | |
1439 | |
1440 | void |
1441 | ithread_wantarray(...) |
1442 | PREINIT: |
1443 | ithread *thread; |
1444 | CODE: |
11db694d |
1445 | PERL_UNUSED_VAR(items); |
861d5cbe |
1446 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
ead32952 |
1447 | ST(0) = (thread->gimme & G_ARRAY) ? &PL_sv_yes : |
1448 | (thread->gimme & G_VOID) ? &PL_sv_undef |
1449 | /* G_SCALAR */ : &PL_sv_no; |
ead32952 |
1450 | /* XSRETURN(1); - implied */ |
1451 | |
69a9b4b8 |
1452 | |
1453 | void |
1454 | ithread_set_thread_exit_only(...) |
1455 | PREINIT: |
1456 | ithread *thread; |
1457 | CODE: |
fea7688c |
1458 | if (items != 2) { |
69a9b4b8 |
1459 | Perl_croak(aTHX_ "Usage: ->set_thread_exit_only(boolean)"); |
fea7688c |
1460 | } |
861d5cbe |
1461 | thread = S_SV_to_ithread(aTHX_ ST(0)); |
69a9b4b8 |
1462 | MUTEX_LOCK(&thread->mutex); |
1463 | if (SvTRUE(ST(1))) { |
1464 | thread->state |= PERL_ITHR_THREAD_EXIT_ONLY; |
1465 | } else { |
1466 | thread->state &= ~PERL_ITHR_THREAD_EXIT_ONLY; |
1467 | } |
1468 | MUTEX_UNLOCK(&thread->mutex); |
1469 | |
955c272e |
1470 | |
1471 | void |
1472 | ithread_error(...) |
1473 | PREINIT: |
1474 | ithread *thread; |
1475 | SV *err = NULL; |
1476 | CODE: |
1477 | /* Object method only */ |
1478 | if ((items != 1) || ! sv_isobject(ST(0))) { |
1479 | Perl_croak(aTHX_ "Usage: $thr->err()"); |
1480 | } |
1481 | |
1482 | thread = INT2PTR(ithread *, SvIV(SvRV(ST(0)))); |
1483 | MUTEX_LOCK(&thread->mutex); |
1484 | |
1485 | /* If thread died, then clone the error into the calling thread */ |
1486 | if (thread->state & PERL_ITHR_DIED) { |
1487 | PerlInterpreter *other_perl; |
1488 | CLONE_PARAMS clone_params; |
1489 | ithread *current_thread; |
1490 | |
1491 | other_perl = thread->interp; |
1492 | clone_params.stashes = newAV(); |
1493 | clone_params.flags = CLONEf_JOIN_IN; |
1494 | PL_ptr_table = ptr_table_new(); |
1495 | current_thread = S_ithread_get(aTHX); |
1496 | S_ithread_set(aTHX_ thread); |
1497 | /* Ensure 'meaningful' addresses retain their meaning */ |
1498 | ptr_table_store(PL_ptr_table, &other_perl->Isv_undef, &PL_sv_undef); |
1499 | ptr_table_store(PL_ptr_table, &other_perl->Isv_no, &PL_sv_no); |
1500 | ptr_table_store(PL_ptr_table, &other_perl->Isv_yes, &PL_sv_yes); |
1501 | err = sv_dup(thread->err, &clone_params); |
1502 | S_ithread_set(aTHX_ current_thread); |
1503 | SvREFCNT_dec(clone_params.stashes); |
1504 | SvREFCNT_inc_void(err); |
1505 | /* If error was an object, bless it into the correct class */ |
1506 | if (thread->err_class) { |
1507 | sv_bless(err, gv_stashpv(thread->err_class, 1)); |
1508 | } |
1509 | ptr_table_free(PL_ptr_table); |
1510 | PL_ptr_table = NULL; |
1511 | } |
1512 | |
1513 | MUTEX_UNLOCK(&thread->mutex); |
1514 | |
1515 | if (! err) { |
1516 | XSRETURN_UNDEF; |
1517 | } |
1518 | |
1519 | ST(0) = sv_2mortal(err); |
1520 | /* XSRETURN(1); - implied */ |
1521 | |
1522 | |
73e09c8f |
1523 | #endif /* USE_ITHREADS */ |
1524 | |
fc04eb16 |
1525 | |
68795e93 |
1526 | BOOT: |
1527 | { |
73e09c8f |
1528 | #ifdef USE_ITHREADS |
5c6ff896 |
1529 | SV *my_pool_sv = *hv_fetch(PL_modglobal, MY_POOL_KEY, |
1530 | sizeof(MY_POOL_KEY)-1, TRUE); |
1531 | my_pool_t *my_poolp = (my_pool_t*)SvPVX(newSV(sizeof(my_pool_t)-1)); |
1532 | |
fc04eb16 |
1533 | MY_CXT_INIT; |
1534 | |
5c6ff896 |
1535 | Zero(my_poolp, 1, my_pool_t); |
1536 | sv_setuv(my_pool_sv, PTR2UV(my_poolp)); |
1537 | |
fc04eb16 |
1538 | PL_perl_destruct_level = 2; |
5c6ff896 |
1539 | MUTEX_INIT(&MY_POOL.create_destruct_mutex); |
1540 | MUTEX_LOCK(&MY_POOL.create_destruct_mutex); |
fc04eb16 |
1541 | |
1542 | PL_threadhook = &Perl_ithread_hook; |
1543 | |
5c6ff896 |
1544 | MY_POOL.tid_counter = 1; |
1545 | # ifdef THREAD_CREATE_NEEDS_STACK |
1546 | MY_POOL.default_stack_size = THREAD_CREATE_NEEDS_STACK; |
1547 | # endif |
1548 | |
c372d929 |
1549 | /* The 'main' thread is thread 0. |
1550 | * It is detached (unjoinable) and immortal. |
1551 | */ |
fc04eb16 |
1552 | |
5c6ff896 |
1553 | MUTEX_INIT(&MY_POOL.main_thread.mutex); |
fc04eb16 |
1554 | |
1555 | /* Head of the threads list */ |
5c6ff896 |
1556 | MY_POOL.main_thread.next = &MY_POOL.main_thread; |
1557 | MY_POOL.main_thread.prev = &MY_POOL.main_thread; |
fc04eb16 |
1558 | |
5c6ff896 |
1559 | MY_POOL.main_thread.count = 1; /* Immortal */ |
fc04eb16 |
1560 | |
5c6ff896 |
1561 | MY_POOL.main_thread.interp = aTHX; |
1562 | MY_POOL.main_thread.state = PERL_ITHR_DETACHED; /* Detached */ |
1563 | MY_POOL.main_thread.stack_size = MY_POOL.default_stack_size; |
fc04eb16 |
1564 | # ifdef WIN32 |
5c6ff896 |
1565 | MY_POOL.main_thread.thr = GetCurrentThreadId(); |
fc04eb16 |
1566 | # else |
5c6ff896 |
1567 | MY_POOL.main_thread.thr = pthread_self(); |
fc04eb16 |
1568 | # endif |
1569 | |
5c6ff896 |
1570 | S_ithread_set(aTHX_ &MY_POOL.main_thread); |
1571 | MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex); |
73e09c8f |
1572 | #endif /* USE_ITHREADS */ |
68795e93 |
1573 | } |