Commit | Line | Data |
1feb2720 |
1 | #if defined(USE_THREADS) || defined(USE_ITHREADS) |
12ca11f6 |
2 | |
ea0efc06 |
3 | #ifdef WIN32 |
d55594ae |
4 | # include <win32thread.h> |
5 | #else |
0d85d877 |
6 | # ifdef OLD_PTHREADS_API /* Here be dragons. */ |
1cfa4ec7 |
7 | # define DETACH(t) \ |
ea0efc06 |
8 | STMT_START { \ |
46930d8f |
9 | if (pthread_detach(&(t)->self)) { \ |
ea0efc06 |
10 | MUTEX_UNLOCK(&(t)->mutex); \ |
cea2e8a9 |
11 | Perl_croak(aTHX_ "panic: DETACH"); \ |
ea0efc06 |
12 | } \ |
13 | } STMT_END |
9bbd4fab |
14 | # define THR getTHR() |
20ce7b12 |
15 | struct perl_thread *getTHR (void); |
0d85d877 |
16 | # define PTHREAD_GETSPECIFIC_INT |
17 | # ifdef DJGPP |
18 | # define pthread_addr_t any_t |
19 | # define NEED_PTHREAD_INIT |
6dc3770d |
20 | # define PTHREAD_CREATE_JOINABLE (1) |
0d85d877 |
21 | # endif |
22 | # ifdef __OPEN_VM |
23 | # define pthread_addr_t void * |
24 | # endif |
25 | # ifdef VMS |
26 | # define pthread_attr_init(a) pthread_attr_create(a) |
27 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_setdetach_np(a,s) |
6dc3770d |
28 | # define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d) |
0d85d877 |
29 | # define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d)) |
30 | # define pthread_mutexattr_init(a) pthread_mutexattr_create(a) |
9bbd4fab |
31 | # define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t) |
0d85d877 |
32 | # endif |
33 | # if defined(DJGPP) || defined(__OPEN_VM) |
34 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s)) |
35 | # define YIELD pthread_yield(NULL) |
36 | # endif |
0d85d877 |
37 | # endif |
1cfa4ec7 |
38 | # define pthread_mutexattr_default NULL |
0d85d877 |
39 | # define pthread_condattr_default NULL |
0d85d877 |
40 | #endif |
41 | |
42 | #ifndef PTHREAD_CREATE |
43 | /* You are not supposed to pass NULL as the 2nd arg of PTHREAD_CREATE(). */ |
44 | # define PTHREAD_CREATE(t,a,s,d) pthread_create(t,&(a),s,d) |
45 | #endif |
46 | |
47 | #ifndef PTHREAD_ATTR_SETDETACHSTATE |
48 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,s) |
d55594ae |
49 | #endif |
1cfa4ec7 |
50 | |
ef4af2be |
51 | #ifndef PTHREAD_CREATE_JOINABLE |
52 | # ifdef OLD_PTHREAD_CREATE_JOINABLE |
53 | # define PTHREAD_CREATE_JOINABLE OLD_PTHREAD_CREATE_JOINABLE |
54 | # else |
55 | # define PTHREAD_CREATE_JOINABLE 0 /* Panic? No, guess. */ |
56 | # endif |
57 | #endif |
58 | |
7f3d1cf1 |
59 | #ifdef I_MACH_CTHREADS |
60 | |
61 | /* cthreads interface */ |
62 | |
63 | /* #include <mach/cthreads.h> is in perl.h #ifdef I_MACH_CTHREADS */ |
64 | |
65 | #define MUTEX_INIT(m) \ |
66 | STMT_START { \ |
67 | *m = mutex_alloc(); \ |
68 | if (*m) { \ |
69 | mutex_init(*m); \ |
70 | } else { \ |
cea2e8a9 |
71 | Perl_croak(aTHX_ "panic: MUTEX_INIT"); \ |
7f3d1cf1 |
72 | } \ |
73 | } STMT_END |
74 | |
75 | #define MUTEX_LOCK(m) mutex_lock(*m) |
7a3f2258 |
76 | #define MUTEX_LOCK_NOCONTEXT(m) mutex_lock(*m) |
7f3d1cf1 |
77 | #define MUTEX_UNLOCK(m) mutex_unlock(*m) |
7a3f2258 |
78 | #define MUTEX_UNLOCK_NOCONTEXT(m) mutex_unlock(*m) |
7f3d1cf1 |
79 | #define MUTEX_DESTROY(m) \ |
80 | STMT_START { \ |
81 | mutex_free(*m); \ |
82 | *m = 0; \ |
83 | } STMT_END |
84 | |
85 | #define COND_INIT(c) \ |
86 | STMT_START { \ |
87 | *c = condition_alloc(); \ |
88 | if (*c) { \ |
89 | condition_init(*c); \ |
90 | } else { \ |
cea2e8a9 |
91 | Perl_croak(aTHX_ "panic: COND_INIT"); \ |
7f3d1cf1 |
92 | } \ |
93 | } STMT_END |
94 | |
95 | #define COND_SIGNAL(c) condition_signal(*c) |
96 | #define COND_BROADCAST(c) condition_broadcast(*c) |
97 | #define COND_WAIT(c, m) condition_wait(*c, *m) |
98 | #define COND_DESTROY(c) \ |
99 | STMT_START { \ |
100 | condition_free(*c); \ |
101 | *c = 0; \ |
102 | } STMT_END |
103 | |
104 | #define THREAD_CREATE(thr, f) (thr->self = cthread_fork(f, thr), 0) |
105 | #define THREAD_POST_CREATE(thr) |
106 | |
107 | #define THREAD_RET_TYPE any_t |
108 | #define THREAD_RET_CAST(x) ((any_t) x) |
109 | |
110 | #define DETACH(t) cthread_detach(t->self) |
111 | #define JOIN(t, avp) (*(avp) = (AV *)cthread_join(t->self)) |
112 | |
113 | #define SET_THR(thr) cthread_set_data(cthread_self(), thr) |
7a3f2258 |
114 | #define THR ((struct perl_thread *)cthread_data(cthread_self())) |
7f3d1cf1 |
115 | |
116 | #define INIT_THREADS cthread_init() |
117 | #define YIELD cthread_yield() |
118 | #define ALLOC_THREAD_KEY |
119 | #define SET_THREAD_SELF(thr) (thr->self = cthread_self()) |
120 | |
121 | #endif /* I_MACH_CTHREADS */ |
122 | |
1cfa4ec7 |
123 | #ifndef YIELD |
e7a4f449 |
124 | # ifdef SCHED_YIELD |
125 | # define YIELD SCHED_YIELD |
126 | # else |
127 | # ifdef HAS_SCHED_YIELD |
128 | # define YIELD sched_yield() |
129 | # else |
130 | # ifdef HAS_PTHREAD_YIELD |
131 | /* pthread_yield(NULL) platforms are expected |
132 | * to have #defined YIELD for themselves. */ |
133 | # define YIELD pthread_yield() |
134 | # endif |
135 | # endif |
136 | # endif |
9731c6ca |
137 | #endif |
11343788 |
138 | |
227c31c3 |
139 | #ifdef __hpux |
140 | # define MUTEX_INIT_NEEDS_MUTEX_ZEROED |
141 | #endif |
142 | |
ea0efc06 |
143 | #ifndef MUTEX_INIT |
227c31c3 |
144 | #ifdef MUTEX_INIT_NEEDS_MUTEX_ZEROED |
145 | /* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */ |
146 | #define MUTEX_INIT(m) \ |
147 | STMT_START { \ |
148 | Zero((m), 1, perl_mutex); \ |
149 | if (pthread_mutex_init((m), pthread_mutexattr_default)) \ |
cea2e8a9 |
150 | Perl_croak(aTHX_ "panic: MUTEX_INIT"); \ |
227c31c3 |
151 | } STMT_END |
152 | #else |
ea0efc06 |
153 | #define MUTEX_INIT(m) \ |
154 | STMT_START { \ |
155 | if (pthread_mutex_init((m), pthread_mutexattr_default)) \ |
cea2e8a9 |
156 | Perl_croak(aTHX_ "panic: MUTEX_INIT"); \ |
ea0efc06 |
157 | } STMT_END |
227c31c3 |
158 | #endif |
ea0efc06 |
159 | #define MUTEX_LOCK(m) \ |
160 | STMT_START { \ |
161 | if (pthread_mutex_lock((m))) \ |
cea2e8a9 |
162 | Perl_croak(aTHX_ "panic: MUTEX_LOCK"); \ |
ea0efc06 |
163 | } STMT_END |
164 | #define MUTEX_UNLOCK(m) \ |
165 | STMT_START { \ |
166 | if (pthread_mutex_unlock((m))) \ |
cea2e8a9 |
167 | Perl_croak(aTHX_ "panic: MUTEX_UNLOCK"); \ |
168 | } STMT_END |
169 | #define MUTEX_LOCK_NOCONTEXT(m) \ |
170 | STMT_START { \ |
171 | if (pthread_mutex_lock((m))) \ |
172 | Perl_croak_nocontext("panic: MUTEX_LOCK"); \ |
173 | } STMT_END |
174 | #define MUTEX_UNLOCK_NOCONTEXT(m) \ |
175 | STMT_START { \ |
176 | if (pthread_mutex_unlock((m))) \ |
177 | Perl_croak_nocontext("panic: MUTEX_UNLOCK");\ |
ea0efc06 |
178 | } STMT_END |
179 | #define MUTEX_DESTROY(m) \ |
180 | STMT_START { \ |
181 | if (pthread_mutex_destroy((m))) \ |
cea2e8a9 |
182 | Perl_croak(aTHX_ "panic: MUTEX_DESTROY"); \ |
ea0efc06 |
183 | } STMT_END |
184 | #endif /* MUTEX_INIT */ |
185 | |
186 | #ifndef COND_INIT |
187 | #define COND_INIT(c) \ |
188 | STMT_START { \ |
189 | if (pthread_cond_init((c), pthread_condattr_default)) \ |
cea2e8a9 |
190 | Perl_croak(aTHX_ "panic: COND_INIT"); \ |
ea0efc06 |
191 | } STMT_END |
192 | #define COND_SIGNAL(c) \ |
193 | STMT_START { \ |
194 | if (pthread_cond_signal((c))) \ |
cea2e8a9 |
195 | Perl_croak(aTHX_ "panic: COND_SIGNAL"); \ |
ea0efc06 |
196 | } STMT_END |
197 | #define COND_BROADCAST(c) \ |
198 | STMT_START { \ |
199 | if (pthread_cond_broadcast((c))) \ |
cea2e8a9 |
200 | Perl_croak(aTHX_ "panic: COND_BROADCAST"); \ |
ea0efc06 |
201 | } STMT_END |
202 | #define COND_WAIT(c, m) \ |
203 | STMT_START { \ |
204 | if (pthread_cond_wait((c), (m))) \ |
cea2e8a9 |
205 | Perl_croak(aTHX_ "panic: COND_WAIT"); \ |
ea0efc06 |
206 | } STMT_END |
207 | #define COND_DESTROY(c) \ |
208 | STMT_START { \ |
209 | if (pthread_cond_destroy((c))) \ |
cea2e8a9 |
210 | Perl_croak(aTHX_ "panic: COND_DESTROY"); \ |
ea0efc06 |
211 | } STMT_END |
212 | #endif /* COND_INIT */ |
33f46ff6 |
213 | |
f826a10b |
214 | /* DETACH(t) must only be called while holding t->mutex */ |
ea0efc06 |
215 | #ifndef DETACH |
216 | #define DETACH(t) \ |
217 | STMT_START { \ |
46930d8f |
218 | if (pthread_detach((t)->self)) { \ |
ea0efc06 |
219 | MUTEX_UNLOCK(&(t)->mutex); \ |
cea2e8a9 |
220 | Perl_croak(aTHX_ "panic: DETACH"); \ |
ea0efc06 |
221 | } \ |
222 | } STMT_END |
223 | #endif /* DETACH */ |
33f46ff6 |
224 | |
ea0efc06 |
225 | #ifndef JOIN |
226 | #define JOIN(t, avp) \ |
227 | STMT_START { \ |
46930d8f |
228 | if (pthread_join((t)->self, (void**)(avp))) \ |
cea2e8a9 |
229 | Perl_croak(aTHX_ "panic: pthread_join"); \ |
ea0efc06 |
230 | } STMT_END |
231 | #endif /* JOIN */ |
232 | |
233 | #ifndef SET_THR |
234 | #define SET_THR(t) \ |
235 | STMT_START { \ |
533c011a |
236 | if (pthread_setspecific(PL_thr_key, (void *) (t))) \ |
cea2e8a9 |
237 | Perl_croak(aTHX_ "panic: pthread_setspecific"); \ |
ea0efc06 |
238 | } STMT_END |
239 | #endif /* SET_THR */ |
240 | |
1feb2720 |
241 | #ifndef INIT_THREADS |
242 | # ifdef NEED_PTHREAD_INIT |
243 | # define INIT_THREADS pthread_init() |
244 | # endif |
0d85d877 |
245 | #endif |
ea0efc06 |
246 | |
1feb2720 |
247 | #ifndef THREAD_RET_TYPE |
248 | # define THREAD_RET_TYPE void * |
249 | # define THREAD_RET_CAST(p) ((void *)(p)) |
250 | #endif /* THREAD_RET */ |
251 | |
252 | #if defined(USE_THREADS) |
253 | |
940cb80d |
254 | /* |
255 | * dTHR is performance-critical. Here, we only do the pthread_get_specific |
256 | * if there may be more than one thread in existence, otherwise we get thr |
257 | * from thrsv which is cached in the per-interpreter structure. |
258 | * Systems with very fast pthread_get_specific (which should be all systems |
259 | * but unfortunately isn't) may wish to simplify to "...*thr = THR". |
b099ddc0 |
260 | * |
261 | * The use of PL_threadnum should be safe here. |
940cb80d |
262 | */ |
1feb2720 |
263 | # if !defined(dTHR) |
264 | # define dTHR \ |
265 | struct perl_thread *thr = PL_threadnum ? THR : (struct perl_thread*)SvPVX(PL_thrsv) |
266 | # endif /* dTHR */ |
11343788 |
267 | |
1feb2720 |
268 | # if !defined(THR) |
269 | # define THR ((struct perl_thread *) pthread_getspecific(PL_thr_key)) |
33f46ff6 |
270 | # endif |
1feb2720 |
271 | |
11343788 |
272 | |
940cb80d |
273 | /* Accessor for per-thread SVs */ |
1feb2720 |
274 | # define THREADSV(i) (thr->threadsvp[i]) |
940cb80d |
275 | |
276 | /* |
277 | * LOCK_SV_MUTEX and UNLOCK_SV_MUTEX are performance-critical. Here, we |
278 | * try only locking them if there may be more than one thread in existence. |
279 | * Systems with very fast mutexes (and/or slow conditionals) may wish to |
280 | * remove the "if (threadnum) ..." test. |
b099ddc0 |
281 | * XXX do NOT use C<if (PL_threadnum) ...> -- it sets up race conditions! |
940cb80d |
282 | */ |
1feb2720 |
283 | # define LOCK_SV_MUTEX MUTEX_LOCK(&PL_sv_mutex) |
284 | # define UNLOCK_SV_MUTEX MUTEX_UNLOCK(&PL_sv_mutex) |
285 | # define LOCK_STRTAB_MUTEX MUTEX_LOCK(&PL_strtab_mutex) |
286 | # define UNLOCK_STRTAB_MUTEX MUTEX_UNLOCK(&PL_strtab_mutex) |
287 | # define LOCK_CRED_MUTEX MUTEX_LOCK(&PL_cred_mutex) |
288 | # define UNLOCK_CRED_MUTEX MUTEX_UNLOCK(&PL_cred_mutex) |
ea0efc06 |
289 | |
11343788 |
290 | |
33f46ff6 |
291 | /* Values and macros for thr->flags */ |
605e5515 |
292 | #define THRf_STATE_MASK 7 |
293 | #define THRf_R_JOINABLE 0 |
294 | #define THRf_R_JOINED 1 |
295 | #define THRf_R_DETACHED 2 |
296 | #define THRf_ZOMBIE 3 |
297 | #define THRf_DEAD 4 |
f93b4edd |
298 | |
458fb581 |
299 | #define THRf_DID_DIE 8 |
07b73707 |
300 | |
f826a10b |
301 | /* ThrSTATE(t) and ThrSETSTATE(t) must only be called while holding t->mutex */ |
458fb581 |
302 | #define ThrSTATE(t) ((t)->flags & THRf_STATE_MASK) |
f93b4edd |
303 | #define ThrSETSTATE(t, s) STMT_START { \ |
605e5515 |
304 | (t)->flags &= ~THRf_STATE_MASK; \ |
33f46ff6 |
305 | (t)->flags |= (s); \ |
bf49b057 |
306 | DEBUG_S(PerlIO_printf(Perl_debug_log, \ |
605e5515 |
307 | "thread %p set to state %d\n", (t), (s))); \ |
f93b4edd |
308 | } STMT_END |
309 | |
310 | typedef struct condpair { |
f826a10b |
311 | perl_mutex mutex; /* Protects all other fields */ |
312 | perl_cond owner_cond; /* For when owner changes at all */ |
313 | perl_cond cond; /* For cond_signal and cond_broadcast */ |
314 | Thread owner; /* Currently owning thread */ |
f93b4edd |
315 | } condpair_t; |
316 | |
317 | #define MgMUTEXP(mg) (&((condpair_t *)(mg->mg_ptr))->mutex) |
318 | #define MgOWNERCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->owner_cond) |
319 | #define MgCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->cond) |
320 | #define MgOWNER(mg) ((condpair_t *)(mg->mg_ptr))->owner |
321 | |
11343788 |
322 | #endif /* USE_THREADS */ |
1feb2720 |
323 | #endif /* USE_THREADS || USE_ITHREADS */ |
324 | |
325 | #ifndef MUTEX_LOCK |
326 | # define MUTEX_LOCK(m) |
327 | #endif |
328 | |
329 | #ifndef MUTEX_LOCK_NOCONTEXT |
330 | # define MUTEX_LOCK_NOCONTEXT(m) |
331 | #endif |
332 | |
333 | #ifndef MUTEX_UNLOCK |
334 | # define MUTEX_UNLOCK(m) |
335 | #endif |
336 | |
337 | #ifndef MUTEX_UNLOCK_NOCONTEXT |
338 | # define MUTEX_UNLOCK_NOCONTEXT(m) |
339 | #endif |
340 | |
341 | #ifndef MUTEX_INIT |
342 | # define MUTEX_INIT(m) |
343 | #endif |
344 | |
345 | #ifndef MUTEX_DESTROY |
346 | # define MUTEX_DESTROY(m) |
347 | #endif |
348 | |
349 | #ifndef COND_INIT |
350 | # define COND_INIT(c) |
351 | #endif |
352 | |
353 | #ifndef COND_SIGNAL |
354 | # define COND_SIGNAL(c) |
355 | #endif |
356 | |
357 | #ifndef COND_BROADCAST |
358 | # define COND_BROADCAST(c) |
359 | #endif |
360 | |
361 | #ifndef COND_WAIT |
362 | # define COND_WAIT(c, m) |
363 | #endif |
364 | |
365 | #ifndef COND_DESTROY |
366 | # define COND_DESTROY(c) |
367 | #endif |
368 | |
369 | #ifndef LOCK_SV_MUTEX |
370 | # define LOCK_SV_MUTEX |
371 | #endif |
372 | |
373 | #ifndef UNLOCK_SV_MUTEX |
374 | # define UNLOCK_SV_MUTEX |
375 | #endif |
376 | |
377 | #ifndef LOCK_STRTAB_MUTEX |
378 | # define LOCK_STRTAB_MUTEX |
379 | #endif |
380 | |
381 | #ifndef UNLOCK_STRTAB_MUTEX |
382 | # define UNLOCK_STRTAB_MUTEX |
383 | #endif |
384 | |
385 | #ifndef LOCK_CRED_MUTEX |
386 | # define LOCK_CRED_MUTEX |
387 | #endif |
388 | |
389 | #ifndef UNLOCK_CRED_MUTEX |
390 | # define UNLOCK_CRED_MUTEX |
391 | #endif |
392 | |
393 | #ifndef THR |
394 | # define THR |
395 | #endif |
396 | |
397 | #ifndef dTHR |
398 | # define dTHR dNOOP |
399 | #endif |
400 | |
401 | #ifndef INIT_THREADS |
402 | # define INIT_THREADS NOOP |
403 | #endif |