Commit | Line | Data |
---|---|---|
c5be433b | 1 | #define PERL_NO_GET_CONTEXT |
d9bb3666 MB |
2 | #include "EXTERN.h" |
3 | #include "perl.h" | |
4 | #include "XSUB.h" | |
5 | ||
7d901afa MB |
6 | /* Magic signature for Thread's mg_private is "Th" */ |
7 | #define Thread_MAGIC_SIGNATURE 0x5468 | |
8 | ||
f0f333f4 NIS |
9 | #ifdef __cplusplus |
10 | #ifdef I_UNISTD | |
11 | #include <unistd.h> | |
12 | #endif | |
13 | #endif | |
14 | #include <fcntl.h> | |
15 | ||
85ced67f | 16 | static int sig_pipe[2]; |
f0f333f4 NIS |
17 | |
18 | #ifndef THREAD_RET_TYPE | |
f0f333f4 NIS |
19 | #define THREAD_RET_TYPE void * |
20 | #define THREAD_RET_CAST(x) ((THREAD_RET_TYPE) x) | |
458fb581 | 21 | #endif |
683929b4 | 22 | |
7d901afa | 23 | static void |
54fb45e2 | 24 | remove_thread(pTHX_ Thread t) |
7d901afa | 25 | { |
f0f333f4 | 26 | #ifdef USE_THREADS |
bf49b057 | 27 | DEBUG_S(WITH_THR(PerlIO_printf(Perl_debug_log, |
7d901afa | 28 | "%p: remove_thread %p\n", thr, t))); |
533c011a | 29 | MUTEX_LOCK(&PL_threads_mutex); |
0a00ffdb | 30 | MUTEX_DESTROY(&t->mutex); |
533c011a | 31 | PL_nthreads--; |
7d901afa MB |
32 | t->prev->next = t->next; |
33 | t->next->prev = t->prev; | |
0655b981 | 34 | SvREFCNT_dec(t->oursv); |
533c011a NIS |
35 | COND_BROADCAST(&PL_nthreads_cond); |
36 | MUTEX_UNLOCK(&PL_threads_mutex); | |
f0f333f4 | 37 | #endif |
7d901afa MB |
38 | } |
39 | ||
ea0efc06 | 40 | static THREAD_RET_TYPE |
f0f333f4 | 41 | threadstart(void *arg) |
d9bb3666 | 42 | { |
f0f333f4 | 43 | #ifdef USE_THREADS |
783070da MB |
44 | #ifdef FAKE_THREADS |
45 | Thread savethread = thr; | |
46 | LOGOP myop; | |
47 | dSP; | |
6b88bc9c | 48 | I32 oldscope = PL_scopestack_ix; |
783070da | 49 | I32 retval; |
458fb581 | 50 | AV *av; |
783070da MB |
51 | int i; |
52 | ||
bf49b057 | 53 | DEBUG_S(PerlIO_printf(Perl_debug_log, "new thread %p starting at %s\n", |
683929b4 | 54 | thr, SvPEEK(TOPs))); |
783070da MB |
55 | thr = (Thread) arg; |
56 | savemark = TOPMARK; | |
57 | thr->prev = thr->prev_run = savethread; | |
58 | thr->next = savethread->next; | |
59 | thr->next_run = savethread->next_run; | |
60 | savethread->next = savethread->next_run = thr; | |
61 | thr->wait_queue = 0; | |
62 | thr->private = 0; | |
63 | ||
64 | /* Now duplicate most of perl_call_sv but with a few twists */ | |
6b88bc9c GS |
65 | PL_op = (OP*)&myop; |
66 | Zero(PL_op, 1, LOGOP); | |
783070da MB |
67 | myop.op_flags = OPf_STACKED; |
68 | myop.op_next = Nullop; | |
69 | myop.op_flags |= OPf_KNOW; | |
70 | myop.op_flags |= OPf_WANT_LIST; | |
6b88bc9c | 71 | PL_op = pp_entersub(ARGS); |
8b73bbec | 72 | DEBUG_S(if (!PL_op) |
bf49b057 | 73 | PerlIO_printf(Perl_debug_log, "thread starts at Nullop\n")); |
783070da MB |
74 | /* |
75 | * When this thread is next scheduled, we start in the right | |
76 | * place. When the thread runs off the end of the sub, perl.c | |
77 | * handles things, using savemark to figure out how much of the | |
78 | * stack is the return value for any join. | |
79 | */ | |
80 | thr = savethread; /* back to the old thread */ | |
81 | return 0; | |
82 | #else | |
d9bb3666 MB |
83 | Thread thr = (Thread) arg; |
84 | LOGOP myop; | |
4e35701f | 85 | djSP; |
d9bb3666 | 86 | I32 oldmark = TOPMARK; |
533c011a | 87 | I32 oldscope = PL_scopestack_ix; |
d9bb3666 | 88 | I32 retval; |
458fb581 | 89 | SV *sv; |
0ae6046c | 90 | AV *av; |
14fcddff | 91 | int i, ret; |
783070da | 92 | dJMPENV; |
0ae6046c GS |
93 | |
94 | #if defined(MULTIPLICITY) | |
95 | PERL_SET_INTERP(thr->interp); | |
96 | #endif | |
97 | ||
bf49b057 | 98 | DEBUG_S(PerlIO_printf(Perl_debug_log, "new thread %p waiting to start\n", |
0b9678a8 | 99 | thr)); |
783070da | 100 | |
06d86050 | 101 | /* Don't call *anything* requiring dTHR until after PERL_SET_THX() */ |
d9bb3666 MB |
102 | /* |
103 | * Wait until our creator releases us. If we didn't do this, then | |
104 | * it would be potentially possible for out thread to carry on and | |
105 | * do stuff before our creator fills in our "self" field. For example, | |
ea0efc06 MB |
106 | * if we went and created another thread which tried to JOIN with us, |
107 | * then we'd be in a mess. | |
d9bb3666 | 108 | */ |
50112d62 MB |
109 | MUTEX_LOCK(&thr->mutex); |
110 | MUTEX_UNLOCK(&thr->mutex); | |
d9bb3666 | 111 | |
d9bb3666 MB |
112 | /* |
113 | * It's safe to wait until now to set the thread-specific pointer | |
52e1cb5e JH |
114 | * from our pthread_t structure to our struct perl_thread, since |
115 | * we're the only thread who can get at it anyway. | |
d9bb3666 | 116 | */ |
06d86050 | 117 | PERL_SET_THX(thr); |
d9bb3666 | 118 | |
783070da | 119 | /* Only now can we use SvPEEK (which calls sv_newmortal which does dTHR) */ |
bf49b057 | 120 | DEBUG_S(PerlIO_printf(Perl_debug_log, "new thread %p starting at %s\n", |
683929b4 | 121 | thr, SvPEEK(TOPs))); |
783070da | 122 | |
0ae6046c | 123 | av = newAV(); |
458fb581 MB |
124 | sv = POPs; |
125 | PUTBACK; | |
901b18f1 GS |
126 | ENTER; |
127 | SAVETMPS; | |
458fb581 | 128 | perl_call_sv(sv, G_ARRAY|G_EVAL); |
734689b1 | 129 | SPAGAIN; |
533c011a NIS |
130 | retval = SP - (PL_stack_base + oldmark); |
131 | SP = PL_stack_base + oldmark + 1; | |
458fb581 MB |
132 | if (SvCUR(thr->errsv)) { |
133 | MUTEX_LOCK(&thr->mutex); | |
134 | thr->flags |= THRf_DID_DIE; | |
135 | MUTEX_UNLOCK(&thr->mutex); | |
6b88bc9c | 136 | av_store(av, 0, &PL_sv_no); |
458fb581 | 137 | av_store(av, 1, newSVsv(thr->errsv)); |
bf49b057 | 138 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p died: %s\n", |
6b88bc9c | 139 | thr, SvPV(thr->errsv, PL_na))); |
0655b981 GS |
140 | } |
141 | else { | |
8b73bbec | 142 | DEBUG_S(STMT_START { |
458fb581 | 143 | for (i = 1; i <= retval; i++) { |
bf49b057 | 144 | PerlIO_printf(Perl_debug_log, "%p return[%d] = %s\n", |
924508f0 | 145 | thr, i, SvPEEK(SP[i - 1])); |
458fb581 MB |
146 | } |
147 | } STMT_END); | |
6b88bc9c | 148 | av_store(av, 0, &PL_sv_yes); |
924508f0 GS |
149 | for (i = 1; i <= retval; i++, SP++) |
150 | sv_setsv(*av_fetch(av, i, TRUE), SvREFCNT_inc(*SP)); | |
458fb581 | 151 | } |
572eda1c | 152 | FREETMPS; |
901b18f1 | 153 | LEAVE; |
458fb581 | 154 | |
d9bb3666 | 155 | finishoff: |
783070da MB |
156 | #if 0 |
157 | /* removed for debug */ | |
6b88bc9c | 158 | SvREFCNT_dec(PL_curstack); |
783070da | 159 | #endif |
199100c8 | 160 | SvREFCNT_dec(thr->cvcache); |
54b9620d | 161 | SvREFCNT_dec(thr->threadsv); |
554b3eca | 162 | SvREFCNT_dec(thr->specific); |
38a03e6e | 163 | SvREFCNT_dec(thr->errsv); |
5c0ca799 | 164 | |
f7ac0805 | 165 | /*Safefree(cxstack);*/ |
84fee439 NIS |
166 | while (PL_curstackinfo->si_next) |
167 | PL_curstackinfo = PL_curstackinfo->si_next; | |
168 | while (PL_curstackinfo) { | |
169 | PERL_SI *p = PL_curstackinfo->si_prev; | |
170 | SvREFCNT_dec(PL_curstackinfo->si_stack); | |
171 | Safefree(PL_curstackinfo->si_cxstack); | |
172 | Safefree(PL_curstackinfo); | |
173 | PL_curstackinfo = p; | |
f7ac0805 | 174 | } |
84fee439 NIS |
175 | Safefree(PL_markstack); |
176 | Safefree(PL_scopestack); | |
177 | Safefree(PL_savestack); | |
178 | Safefree(PL_retstack); | |
179 | Safefree(PL_tmps_stack); | |
180 | Safefree(PL_ofs); | |
d9bb3666 | 181 | |
84fee439 NIS |
182 | SvREFCNT_dec(PL_rs); |
183 | SvREFCNT_dec(PL_nrs); | |
184 | SvREFCNT_dec(PL_statname); | |
5a844595 | 185 | SvREFCNT_dec(PL_errors); |
84fee439 NIS |
186 | Safefree(PL_screamfirst); |
187 | Safefree(PL_screamnext); | |
188 | Safefree(PL_reg_start_tmp); | |
189 | SvREFCNT_dec(PL_lastscream); | |
901b18f1 | 190 | SvREFCNT_dec(PL_defoutgv); |
82ba1be6 | 191 | Safefree(PL_reg_poscache); |
8dcd6f7b | 192 | thr->thr_done = 1; |
5c0ca799 | 193 | |
14fcddff | 194 | MUTEX_LOCK(&thr->mutex); |
bf49b057 | 195 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
50112d62 MB |
196 | "%p: threadstart finishing: state is %u\n", |
197 | thr, ThrSTATE(thr))); | |
14fcddff MB |
198 | switch (ThrSTATE(thr)) { |
199 | case THRf_R_JOINABLE: | |
200 | ThrSETSTATE(thr, THRf_ZOMBIE); | |
201 | MUTEX_UNLOCK(&thr->mutex); | |
bf49b057 | 202 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
14fcddff MB |
203 | "%p: R_JOINABLE thread finished\n", thr)); |
204 | break; | |
205 | case THRf_R_JOINED: | |
206 | ThrSETSTATE(thr, THRf_DEAD); | |
207 | MUTEX_UNLOCK(&thr->mutex); | |
cea2e8a9 | 208 | remove_thread(aTHX_ thr); |
bf49b057 | 209 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
14fcddff MB |
210 | "%p: R_JOINED thread finished\n", thr)); |
211 | break; | |
50112d62 | 212 | case THRf_R_DETACHED: |
683929b4 | 213 | ThrSETSTATE(thr, THRf_DEAD); |
14fcddff | 214 | MUTEX_UNLOCK(&thr->mutex); |
458fb581 | 215 | SvREFCNT_dec(av); |
bf49b057 | 216 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
14fcddff | 217 | "%p: DETACHED thread finished\n", thr)); |
cea2e8a9 | 218 | remove_thread(aTHX_ thr); /* This might trigger main thread to finish */ |
14fcddff MB |
219 | break; |
220 | default: | |
221 | MUTEX_UNLOCK(&thr->mutex); | |
222 | croak("panic: illegal state %u at end of threadstart", ThrSTATE(thr)); | |
223 | /* NOTREACHED */ | |
734689b1 | 224 | } |
458fb581 | 225 | return THREAD_RET_CAST(av); /* Available for anyone to join with */ |
ea0efc06 MB |
226 | /* us unless we're detached, in which */ |
227 | /* case noone sees the value anyway. */ | |
783070da | 228 | #endif |
f0f333f4 NIS |
229 | #else |
230 | return THREAD_RET_CAST(NULL); | |
231 | #endif | |
d9bb3666 MB |
232 | } |
233 | ||
683929b4 | 234 | static SV * |
cea2e8a9 | 235 | newthread (pTHX_ SV *startsv, AV *initargs, char *classname) |
d9bb3666 | 236 | { |
f0f333f4 | 237 | #ifdef USE_THREADS |
d9bb3666 MB |
238 | dSP; |
239 | Thread savethread; | |
240 | int i; | |
683929b4 | 241 | SV *sv; |
ea0efc06 MB |
242 | int err; |
243 | #ifndef THREAD_CREATE | |
940cb80d MB |
244 | static pthread_attr_t attr; |
245 | static int attr_inited = 0; | |
f152979c | 246 | sigset_t fullmask, oldmask; |
13666627 | 247 | static int attr_joinable = PTHREAD_CREATE_JOINABLE; |
b86a2fa7 | 248 | #endif |
1cfa4ec7 | 249 | |
d9bb3666 | 250 | savethread = thr; |
a863c7d1 | 251 | thr = new_struct_thread(thr); |
c4e7bd8d GS |
252 | /* temporarily pretend to be the child thread in case the |
253 | * XPUSHs() below want to grow the child's stack. This is | |
254 | * safe, since the other thread is not yet created, and we | |
255 | * are the only ones who know about it */ | |
06d86050 | 256 | PERL_SET_THX(thr); |
d9bb3666 | 257 | SPAGAIN; |
bf49b057 | 258 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0b9678a8 NIS |
259 | "%p: newthread (%p), tid is %u, preparing stack\n", |
260 | savethread, thr, thr->tid)); | |
d9bb3666 | 261 | /* The following pushes the arg list and startsv onto the *new* stack */ |
924508f0 | 262 | PUSHMARK(SP); |
d9bb3666 | 263 | /* Could easily speed up the following greatly */ |
734689b1 | 264 | for (i = 0; i <= AvFILL(initargs); i++) |
d9bb3666 MB |
265 | XPUSHs(SvREFCNT_inc(*av_fetch(initargs, i, FALSE))); |
266 | XPUSHs(SvREFCNT_inc(startsv)); | |
267 | PUTBACK; | |
b099ddc0 GS |
268 | |
269 | /* On your marks... */ | |
06d86050 | 270 | PERL_SET_THX(savethread); |
b099ddc0 GS |
271 | MUTEX_LOCK(&thr->mutex); |
272 | ||
ea0efc06 | 273 | #ifdef THREAD_CREATE |
f0f333f4 | 274 | err = THREAD_CREATE(thr, threadstart); |
783070da | 275 | #else |
ea0efc06 | 276 | /* Get set... */ |
f152979c MB |
277 | sigfillset(&fullmask); |
278 | if (sigprocmask(SIG_SETMASK, &fullmask, &oldmask) == -1) | |
279 | croak("panic: sigprocmask"); | |
940cb80d MB |
280 | err = 0; |
281 | if (!attr_inited) { | |
282 | attr_inited = 1; | |
52e1cb5e | 283 | err = pthread_attr_init(&attr); |
0d85d877 | 284 | # ifdef PTHREAD_ATTR_SETDETACHSTATE |
940cb80d | 285 | if (err == 0) |
0d85d877 JH |
286 | err = PTHREAD_ATTR_SETDETACHSTATE(&attr, attr_joinable); |
287 | ||
288 | # else | |
1cfa4ec7 | 289 | croak("panic: can't pthread_attr_setdetachstate"); |
0d85d877 | 290 | # endif |
52e1cb5e | 291 | } |
940cb80d | 292 | if (err == 0) |
0d85d877 | 293 | err = PTHREAD_CREATE(&thr->self, attr, threadstart, (void*) thr); |
ea0efc06 | 294 | #endif |
b099ddc0 | 295 | |
ea0efc06 | 296 | if (err) { |
b099ddc0 | 297 | MUTEX_UNLOCK(&thr->mutex); |
bf49b057 | 298 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
940cb80d MB |
299 | "%p: create of %p failed %d\n", |
300 | savethread, thr, err)); | |
ea0efc06 | 301 | /* Thread creation failed--clean up */ |
199100c8 | 302 | SvREFCNT_dec(thr->cvcache); |
cea2e8a9 | 303 | remove_thread(aTHX_ thr); |
ea0efc06 MB |
304 | for (i = 0; i <= AvFILL(initargs); i++) |
305 | SvREFCNT_dec(*av_fetch(initargs, i, FALSE)); | |
306 | SvREFCNT_dec(startsv); | |
307 | return NULL; | |
308 | } | |
b099ddc0 | 309 | |
ea0efc06 MB |
310 | #ifdef THREAD_POST_CREATE |
311 | THREAD_POST_CREATE(thr); | |
312 | #else | |
f152979c MB |
313 | if (sigprocmask(SIG_SETMASK, &oldmask, 0)) |
314 | croak("panic: sigprocmask"); | |
783070da | 315 | #endif |
b099ddc0 | 316 | |
7d901afa | 317 | sv = newSViv(thr->tid); |
199100c8 | 318 | sv_magic(sv, thr->oursv, '~', 0, 0); |
7d901afa | 319 | SvMAGIC(sv)->mg_private = Thread_MAGIC_SIGNATURE; |
b099ddc0 GS |
320 | sv = sv_bless(newRV_noinc(sv), gv_stashpv(classname, TRUE)); |
321 | ||
322 | /* Go */ | |
323 | MUTEX_UNLOCK(&thr->mutex); | |
324 | ||
325 | return sv; | |
f0f333f4 NIS |
326 | #else |
327 | croak("No threads in this perl"); | |
6b88bc9c | 328 | return &PL_sv_undef; |
f0f333f4 | 329 | #endif |
d9bb3666 MB |
330 | } |
331 | ||
20ce7b12 | 332 | static Signal_t handle_thread_signal (int sig); |
f0f333f4 | 333 | |
f152979c | 334 | static Signal_t |
f0f333f4 | 335 | handle_thread_signal(int sig) |
f152979c | 336 | { |
c5be433b | 337 | dTHXo; |
3aeed370 MB |
338 | unsigned char c = (unsigned char) sig; |
339 | /* | |
340 | * We're not really allowed to call fprintf in a signal handler | |
341 | * so don't be surprised if this isn't robust while debugging | |
342 | * with -DL. | |
343 | */ | |
bf49b057 | 344 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
3aeed370 MB |
345 | "handle_thread_signal: got signal %d\n", sig);); |
346 | write(sig_pipe[1], &c, 1); | |
f152979c MB |
347 | } |
348 | ||
d9bb3666 | 349 | MODULE = Thread PACKAGE = Thread |
0b9678a8 | 350 | PROTOTYPES: DISABLE |
d9bb3666 | 351 | |
683929b4 | 352 | void |
458fb581 MB |
353 | new(classname, startsv, ...) |
354 | char * classname | |
d9bb3666 | 355 | SV * startsv |
734689b1 | 356 | AV * av = av_make(items - 2, &ST(2)); |
683929b4 | 357 | PPCODE: |
cea2e8a9 | 358 | XPUSHs(sv_2mortal(newthread(aTHX_ startsv, av, classname))); |
d9bb3666 MB |
359 | |
360 | void | |
d9bb3666 MB |
361 | join(t) |
362 | Thread t | |
363 | AV * av = NO_INIT | |
364 | int i = NO_INIT | |
365 | PPCODE: | |
f0f333f4 | 366 | #ifdef USE_THREADS |
272b4648 GS |
367 | if (t == thr) |
368 | croak("Attempt to join self"); | |
bf49b057 | 369 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: joining %p (state %u)\n", |
7d901afa | 370 | thr, t, ThrSTATE(t));); |
50112d62 MB |
371 | MUTEX_LOCK(&t->mutex); |
372 | switch (ThrSTATE(t)) { | |
14fcddff MB |
373 | case THRf_R_JOINABLE: |
374 | case THRf_R_JOINED: | |
50112d62 MB |
375 | ThrSETSTATE(t, THRf_R_JOINED); |
376 | MUTEX_UNLOCK(&t->mutex); | |
14fcddff MB |
377 | break; |
378 | case THRf_ZOMBIE: | |
50112d62 MB |
379 | ThrSETSTATE(t, THRf_DEAD); |
380 | MUTEX_UNLOCK(&t->mutex); | |
cea2e8a9 | 381 | remove_thread(aTHX_ t); |
14fcddff MB |
382 | break; |
383 | default: | |
50112d62 | 384 | MUTEX_UNLOCK(&t->mutex); |
14fcddff MB |
385 | croak("can't join with thread"); |
386 | /* NOTREACHED */ | |
387 | } | |
ea0efc06 | 388 | JOIN(t, &av); |
7d901afa | 389 | |
0655b981 GS |
390 | sv_2mortal((SV*)av); |
391 | ||
458fb581 MB |
392 | if (SvTRUE(*av_fetch(av, 0, FALSE))) { |
393 | /* Could easily speed up the following if necessary */ | |
394 | for (i = 1; i <= AvFILL(av); i++) | |
0655b981 GS |
395 | XPUSHs(*av_fetch(av, i, FALSE)); |
396 | } | |
397 | else { | |
2d8e6c8d GS |
398 | STRLEN n_a; |
399 | char *mess = SvPV(*av_fetch(av, 1, FALSE), n_a); | |
bf49b057 | 400 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
458fb581 MB |
401 | "%p: join propagating die message: %s\n", |
402 | thr, mess)); | |
403 | croak(mess); | |
404 | } | |
f0f333f4 | 405 | #endif |
d9bb3666 MB |
406 | |
407 | void | |
734689b1 | 408 | detach(t) |
d9bb3666 MB |
409 | Thread t |
410 | CODE: | |
f0f333f4 | 411 | #ifdef USE_THREADS |
bf49b057 | 412 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: detaching %p (state %u)\n", |
7d901afa | 413 | thr, t, ThrSTATE(t));); |
50112d62 MB |
414 | MUTEX_LOCK(&t->mutex); |
415 | switch (ThrSTATE(t)) { | |
14fcddff | 416 | case THRf_R_JOINABLE: |
50112d62 | 417 | ThrSETSTATE(t, THRf_R_DETACHED); |
14fcddff | 418 | /* fall through */ |
50112d62 | 419 | case THRf_R_DETACHED: |
14fcddff | 420 | DETACH(t); |
50112d62 | 421 | MUTEX_UNLOCK(&t->mutex); |
14fcddff MB |
422 | break; |
423 | case THRf_ZOMBIE: | |
50112d62 | 424 | ThrSETSTATE(t, THRf_DEAD); |
7d901afa | 425 | DETACH(t); |
50112d62 | 426 | MUTEX_UNLOCK(&t->mutex); |
cea2e8a9 | 427 | remove_thread(aTHX_ t); |
14fcddff MB |
428 | break; |
429 | default: | |
50112d62 | 430 | MUTEX_UNLOCK(&t->mutex); |
14fcddff MB |
431 | croak("can't detach thread"); |
432 | /* NOTREACHED */ | |
734689b1 | 433 | } |
f0f333f4 | 434 | #endif |
d9bb3666 MB |
435 | |
436 | void | |
7d901afa MB |
437 | equal(t1, t2) |
438 | Thread t1 | |
439 | Thread t2 | |
440 | PPCODE: | |
6b88bc9c | 441 | PUSHs((t1 == t2) ? &PL_sv_yes : &PL_sv_no); |
7d901afa MB |
442 | |
443 | void | |
444 | flags(t) | |
445 | Thread t | |
446 | PPCODE: | |
f0f333f4 | 447 | #ifdef USE_THREADS |
7d901afa | 448 | PUSHs(sv_2mortal(newSViv(t->flags))); |
f0f333f4 | 449 | #endif |
7d901afa MB |
450 | |
451 | void | |
8dcd6f7b DS |
452 | done(t) |
453 | Thread t | |
454 | PPCODE: | |
455 | #ifdef USE_THREADS | |
456 | PUSHs(t->thr_done ? &PL_sv_yes : &PL_sv_no); | |
457 | #endif | |
458 | ||
459 | void | |
458fb581 MB |
460 | self(classname) |
461 | char * classname | |
7d901afa MB |
462 | PREINIT: |
463 | SV *sv; | |
f0f333f4 NIS |
464 | PPCODE: |
465 | #ifdef USE_THREADS | |
7d901afa | 466 | sv = newSViv(thr->tid); |
199100c8 | 467 | sv_magic(sv, thr->oursv, '~', 0, 0); |
7d901afa | 468 | SvMAGIC(sv)->mg_private = Thread_MAGIC_SIGNATURE; |
458fb581 MB |
469 | PUSHs(sv_2mortal(sv_bless(newRV_noinc(sv), |
470 | gv_stashpv(classname, TRUE)))); | |
f0f333f4 | 471 | #endif |
7d901afa | 472 | |
50112d62 MB |
473 | U32 |
474 | tid(t) | |
475 | Thread t | |
476 | CODE: | |
f0f333f4 | 477 | #ifdef USE_THREADS |
50112d62 MB |
478 | MUTEX_LOCK(&t->mutex); |
479 | RETVAL = t->tid; | |
480 | MUTEX_UNLOCK(&t->mutex); | |
f0f333f4 NIS |
481 | #else |
482 | RETVAL = 0; | |
483 | #endif | |
50112d62 MB |
484 | OUTPUT: |
485 | RETVAL | |
486 | ||
487 | void | |
488 | DESTROY(t) | |
489 | SV * t | |
490 | PPCODE: | |
6b88bc9c | 491 | PUSHs(&PL_sv_yes); |
50112d62 | 492 | |
7d901afa | 493 | void |
734689b1 | 494 | yield() |
d9bb3666 | 495 | CODE: |
f0f333f4 NIS |
496 | { |
497 | #ifdef USE_THREADS | |
ea0efc06 | 498 | YIELD; |
f0f333f4 NIS |
499 | #endif |
500 | } | |
d9bb3666 MB |
501 | |
502 | void | |
734689b1 MB |
503 | cond_wait(sv) |
504 | SV * sv | |
505 | MAGIC * mg = NO_INIT | |
f0f333f4 NIS |
506 | CODE: |
507 | #ifdef USE_THREADS | |
2c127b02 | 508 | if (SvROK(sv)) |
734689b1 | 509 | sv = SvRV(sv); |
2c127b02 | 510 | |
734689b1 | 511 | mg = condpair_magic(sv); |
bf49b057 | 512 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: cond_wait %p\n", thr, sv)); |
734689b1 MB |
513 | MUTEX_LOCK(MgMUTEXP(mg)); |
514 | if (MgOWNER(mg) != thr) { | |
515 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
516 | croak("cond_wait for lock that we don't own\n"); | |
517 | } | |
518 | MgOWNER(mg) = 0; | |
d3ef5668 | 519 | COND_SIGNAL(MgOWNERCONDP(mg)); |
734689b1 | 520 | COND_WAIT(MgCONDP(mg), MgMUTEXP(mg)); |
50112d62 MB |
521 | while (MgOWNER(mg)) |
522 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
734689b1 MB |
523 | MgOWNER(mg) = thr; |
524 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
f0f333f4 NIS |
525 | #endif |
526 | ||
734689b1 MB |
527 | void |
528 | cond_signal(sv) | |
529 | SV * sv | |
530 | MAGIC * mg = NO_INIT | |
531 | CODE: | |
f0f333f4 | 532 | #ifdef USE_THREADS |
50112d62 | 533 | if (SvROK(sv)) |
734689b1 | 534 | sv = SvRV(sv); |
50112d62 | 535 | |
734689b1 | 536 | mg = condpair_magic(sv); |
bf49b057 | 537 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: cond_signal %p\n",thr,sv)); |
734689b1 MB |
538 | MUTEX_LOCK(MgMUTEXP(mg)); |
539 | if (MgOWNER(mg) != thr) { | |
540 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
541 | croak("cond_signal for lock that we don't own\n"); | |
542 | } | |
543 | COND_SIGNAL(MgCONDP(mg)); | |
544 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
f0f333f4 | 545 | #endif |
d9bb3666 | 546 | |
734689b1 MB |
547 | void |
548 | cond_broadcast(sv) | |
549 | SV * sv | |
550 | MAGIC * mg = NO_INIT | |
f0f333f4 NIS |
551 | CODE: |
552 | #ifdef USE_THREADS | |
783070da | 553 | if (SvROK(sv)) |
734689b1 | 554 | sv = SvRV(sv); |
783070da | 555 | |
734689b1 | 556 | mg = condpair_magic(sv); |
bf49b057 | 557 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: cond_broadcast %p\n", |
683929b4 | 558 | thr, sv)); |
734689b1 MB |
559 | MUTEX_LOCK(MgMUTEXP(mg)); |
560 | if (MgOWNER(mg) != thr) { | |
561 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
562 | croak("cond_broadcast for lock that we don't own\n"); | |
563 | } | |
564 | COND_BROADCAST(MgCONDP(mg)); | |
565 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
f0f333f4 | 566 | #endif |
f152979c | 567 | |
7d901afa | 568 | void |
458fb581 MB |
569 | list(classname) |
570 | char * classname | |
7d901afa MB |
571 | PREINIT: |
572 | Thread t; | |
573 | AV * av; | |
574 | SV ** svp; | |
575 | int n = 0; | |
576 | PPCODE: | |
f0f333f4 | 577 | #ifdef USE_THREADS |
7d901afa MB |
578 | av = newAV(); |
579 | /* | |
580 | * Iterate until we have enough dynamic storage for all threads. | |
581 | * We mustn't do any allocation while holding threads_mutex though. | |
582 | */ | |
533c011a | 583 | MUTEX_LOCK(&PL_threads_mutex); |
7d901afa | 584 | do { |
533c011a NIS |
585 | n = PL_nthreads; |
586 | MUTEX_UNLOCK(&PL_threads_mutex); | |
7d901afa MB |
587 | if (AvFILL(av) < n - 1) { |
588 | int i = AvFILL(av); | |
589 | for (i = AvFILL(av); i < n - 1; i++) { | |
590 | SV *sv = newSViv(0); /* fill in tid later */ | |
591 | sv_magic(sv, 0, '~', 0, 0); /* fill in other magic later */ | |
592 | av_push(av, sv_bless(newRV_noinc(sv), | |
458fb581 | 593 | gv_stashpv(classname, TRUE))); |
50112d62 | 594 | |
7d901afa MB |
595 | } |
596 | } | |
533c011a NIS |
597 | MUTEX_LOCK(&PL_threads_mutex); |
598 | } while (n < PL_nthreads); | |
599 | n = PL_nthreads; /* Get the final correct value */ | |
7d901afa MB |
600 | |
601 | /* | |
602 | * At this point, there's enough room to fill in av. | |
603 | * Note that we are holding threads_mutex so the list | |
604 | * won't change out from under us but all the remaining | |
605 | * processing is "fast" (no blocking, malloc etc.) | |
606 | */ | |
607 | t = thr; | |
608 | svp = AvARRAY(av); | |
609 | do { | |
0a00ffdb | 610 | SV *sv = (SV*)SvRV(*svp); |
7d901afa | 611 | sv_setiv(sv, t->tid); |
199100c8 | 612 | SvMAGIC(sv)->mg_obj = SvREFCNT_inc(t->oursv); |
7d901afa MB |
613 | SvMAGIC(sv)->mg_flags |= MGf_REFCOUNTED; |
614 | SvMAGIC(sv)->mg_private = Thread_MAGIC_SIGNATURE; | |
615 | t = t->next; | |
0a00ffdb | 616 | svp++; |
7d901afa | 617 | } while (t != thr); |
50112d62 | 618 | /* */ |
533c011a | 619 | MUTEX_UNLOCK(&PL_threads_mutex); |
7d901afa | 620 | /* Truncate any unneeded slots in av */ |
50112d62 | 621 | av_fill(av, n - 1); |
7d901afa | 622 | /* Finally, push all the new objects onto the stack and drop av */ |
924508f0 | 623 | EXTEND(SP, n); |
7d901afa MB |
624 | for (svp = AvARRAY(av); n > 0; n--, svp++) |
625 | PUSHs(*svp); | |
626 | (void)sv_2mortal((SV*)av); | |
f0f333f4 | 627 | #endif |
7d901afa MB |
628 | |
629 | ||
f152979c MB |
630 | MODULE = Thread PACKAGE = Thread::Signal |
631 | ||
632 | void | |
633 | kill_sighandler_thread() | |
634 | PPCODE: | |
3aeed370 | 635 | write(sig_pipe[1], "\0", 1); |
6b88bc9c | 636 | PUSHs(&PL_sv_yes); |
f152979c MB |
637 | |
638 | void | |
639 | init_thread_signals() | |
640 | PPCODE: | |
533c011a | 641 | PL_sighandlerp = handle_thread_signal; |
f152979c MB |
642 | if (pipe(sig_pipe) == -1) |
643 | XSRETURN_UNDEF; | |
6b88bc9c | 644 | PUSHs(&PL_sv_yes); |
f152979c | 645 | |
3aeed370 | 646 | void |
f152979c MB |
647 | await_signal() |
648 | PREINIT: | |
3aeed370 | 649 | unsigned char c; |
ea0efc06 | 650 | SSize_t ret; |
f152979c MB |
651 | CODE: |
652 | do { | |
3aeed370 | 653 | ret = read(sig_pipe[0], &c, 1); |
f152979c MB |
654 | } while (ret == -1 && errno == EINTR); |
655 | if (ret == -1) | |
656 | croak("panic: await_signal"); | |
3aeed370 MB |
657 | ST(0) = sv_newmortal(); |
658 | if (ret) | |
22c35a8c | 659 | sv_setsv(ST(0), c ? PL_psig_ptr[c] : &PL_sv_no); |
bf49b057 | 660 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
3aeed370 | 661 | "await_signal returning %s\n", SvPEEK(ST(0)));); |
4e35701f | 662 | |
458fb581 MB |
663 | MODULE = Thread PACKAGE = Thread::Specific |
664 | ||
665 | void | |
666 | data(classname = "Thread::Specific") | |
667 | char * classname | |
668 | PPCODE: | |
fb223100 | 669 | #ifdef USE_THREADS |
458fb581 MB |
670 | if (AvFILL(thr->specific) == -1) { |
671 | GV *gv = gv_fetchpv("Thread::Specific::FIELDS", TRUE, SVt_PVHV); | |
672 | av_store(thr->specific, 0, newRV((SV*)GvHV(gv))); | |
673 | } | |
674 | XPUSHs(sv_bless(newRV((SV*)thr->specific),gv_stashpv(classname,TRUE))); | |
fb223100 | 675 | #endif |