Commit | Line | Data |
---|---|---|
d6376244 JH |
1 | /* thread.h |
2 | * | |
54ca4ee7 | 3 | * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
1d325971 | 4 | * by Larry Wall and others |
d6376244 JH |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
3db8f154 | 11 | #if defined(USE_ITHREADS) |
12ca11f6 | 12 | |
fd8cd3a3 DS |
13 | #if defined(VMS) |
14 | #include <builtins.h> | |
15 | #endif | |
16 | ||
ea0efc06 | 17 | #ifdef WIN32 |
d55594ae | 18 | # include <win32thread.h> |
2986a63f | 19 | #else |
0d85d877 | 20 | # ifdef OLD_PTHREADS_API /* Here be dragons. */ |
ba869deb GS |
21 | # define DETACH(t) \ |
22 | STMT_START { \ | |
1604cfb0 MS |
23 | int _eC_; \ |
24 | if ((_eC_ = pthread_detach(&(t)->self))) { \ | |
25 | MUTEX_UNLOCK(&(t)->mutex); \ | |
26 | Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \ | |
27 | _eC_, __FILE__, __LINE__); \ | |
28 | } \ | |
ea0efc06 | 29 | } STMT_END |
ba869deb GS |
30 | |
31 | # define PERL_GET_CONTEXT Perl_get_context() | |
32 | # define PERL_SET_CONTEXT(t) Perl_set_context((void*)t) | |
33 | ||
0d85d877 | 34 | # define PTHREAD_GETSPECIFIC_INT |
20b634c2 JH |
35 | # ifdef OEMVS |
36 | # define pthread_addr_t void * | |
20b634c2 JH |
37 | # define pthread_create(t,a,s,d) pthread_create(t,&(a),s,d) |
38 | # define pthread_keycreate pthread_key_create | |
39 | # endif | |
0d85d877 JH |
40 | # ifdef VMS |
41 | # define pthread_attr_init(a) pthread_attr_create(a) | |
42 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_setdetach_np(a,s) | |
6dc3770d | 43 | # define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d) |
0d85d877 JH |
44 | # define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d)) |
45 | # define pthread_mutexattr_init(a) pthread_mutexattr_create(a) | |
9bbd4fab | 46 | # define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t) |
0d85d877 | 47 | # endif |
2eb25c99 JH |
48 | # if defined(__hpux) && defined(__ux_version) && __ux_version <= 1020 |
49 | # define pthread_attr_init(a) pthread_attr_create(a) | |
50 | /* XXX pthread_setdetach_np() missing in DCE threads on HP-UX 10.20 */ | |
10617789 | 51 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) (0) |
2eb25c99 JH |
52 | # define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d) |
53 | # define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d)) | |
54 | # define pthread_mutexattr_init(a) pthread_mutexattr_create(a) | |
55 | # define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t) | |
56 | # endif | |
4457f3fc | 57 | # if defined(OEMVS) |
0d85d877 JH |
58 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s)) |
59 | # define YIELD pthread_yield(NULL) | |
60 | # endif | |
0d85d877 | 61 | # endif |
2eb25c99 | 62 | # if !defined(__hpux) || !defined(__ux_version) || __ux_version > 1020 |
1cfa4ec7 | 63 | # define pthread_mutexattr_default NULL |
0d85d877 | 64 | # define pthread_condattr_default NULL |
2eb25c99 | 65 | # endif |
0d85d877 JH |
66 | #endif |
67 | ||
68 | #ifndef PTHREAD_CREATE | |
69 | /* You are not supposed to pass NULL as the 2nd arg of PTHREAD_CREATE(). */ | |
70 | # define PTHREAD_CREATE(t,a,s,d) pthread_create(t,&(a),s,d) | |
71 | #endif | |
72 | ||
73 | #ifndef PTHREAD_ATTR_SETDETACHSTATE | |
74 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,s) | |
d55594ae | 75 | #endif |
1cfa4ec7 | 76 | |
ef4af2be JH |
77 | #ifndef PTHREAD_CREATE_JOINABLE |
78 | # ifdef OLD_PTHREAD_CREATE_JOINABLE | |
79 | # define PTHREAD_CREATE_JOINABLE OLD_PTHREAD_CREATE_JOINABLE | |
80 | # else | |
81 | # define PTHREAD_CREATE_JOINABLE 0 /* Panic? No, guess. */ | |
82 | # endif | |
83 | #endif | |
84 | ||
93a09687 JM |
85 | #ifdef __VMS |
86 | /* Default is 1024 on VAX, 8192 otherwise */ | |
3319632a CB |
87 | # ifdef __ia64 |
88 | # define THREAD_CREATE_NEEDS_STACK (48*1024) | |
89 | # else | |
90 | # define THREAD_CREATE_NEEDS_STACK (32*1024) | |
91 | # endif | |
93a09687 JM |
92 | #endif |
93 | ||
7f3d1cf1 BH |
94 | #ifdef I_MACH_CTHREADS |
95 | ||
96 | /* cthreads interface */ | |
97 | ||
98 | /* #include <mach/cthreads.h> is in perl.h #ifdef I_MACH_CTHREADS */ | |
99 | ||
ba869deb GS |
100 | #define MUTEX_INIT(m) \ |
101 | STMT_START { \ | |
1604cfb0 MS |
102 | *m = mutex_alloc(); \ |
103 | if (*m) { \ | |
104 | mutex_init(*m); \ | |
105 | } else { \ | |
106 | Perl_croak_nocontext("panic: MUTEX_INIT [%s:%d]", \ | |
107 | __FILE__, __LINE__); \ | |
108 | } \ | |
ba869deb GS |
109 | } STMT_END |
110 | ||
111 | #define MUTEX_LOCK(m) mutex_lock(*m) | |
ba869deb | 112 | #define MUTEX_UNLOCK(m) mutex_unlock(*m) |
ba869deb GS |
113 | #define MUTEX_DESTROY(m) \ |
114 | STMT_START { \ | |
1604cfb0 MS |
115 | mutex_free(*m); \ |
116 | *m = 0; \ | |
ba869deb GS |
117 | } STMT_END |
118 | ||
119 | #define COND_INIT(c) \ | |
120 | STMT_START { \ | |
1604cfb0 MS |
121 | *c = condition_alloc(); \ |
122 | if (*c) { \ | |
123 | condition_init(*c); \ | |
124 | } \ | |
125 | else { \ | |
126 | Perl_croak_nocontext("panic: COND_INIT [%s:%d]", \ | |
127 | __FILE__, __LINE__); \ | |
128 | } \ | |
ba869deb | 129 | } STMT_END |
7f3d1cf1 BH |
130 | |
131 | #define COND_SIGNAL(c) condition_signal(*c) | |
132 | #define COND_BROADCAST(c) condition_broadcast(*c) | |
133 | #define COND_WAIT(c, m) condition_wait(*c, *m) | |
ba869deb GS |
134 | #define COND_DESTROY(c) \ |
135 | STMT_START { \ | |
1604cfb0 MS |
136 | condition_free(*c); \ |
137 | *c = 0; \ | |
ba869deb | 138 | } STMT_END |
7f3d1cf1 | 139 | |
7f3d1cf1 | 140 | #define THREAD_RET_TYPE any_t |
7f3d1cf1 BH |
141 | |
142 | #define DETACH(t) cthread_detach(t->self) | |
a062e10d | 143 | #define JOIN(t, avp) (*(avp) = MUTABLE_AV(cthread_join(t->self))) |
7f3d1cf1 | 144 | |
ba869deb GS |
145 | #define PERL_SET_CONTEXT(t) cthread_set_data(cthread_self(), t) |
146 | #define PERL_GET_CONTEXT cthread_data(cthread_self()) | |
7f3d1cf1 BH |
147 | |
148 | #define INIT_THREADS cthread_init() | |
149 | #define YIELD cthread_yield() | |
ba869deb | 150 | #define ALLOC_THREAD_KEY NOOP |
e1b5da64 | 151 | #define FREE_THREAD_KEY NOOP |
7f3d1cf1 BH |
152 | #define SET_THREAD_SELF(thr) (thr->self = cthread_self()) |
153 | ||
154 | #endif /* I_MACH_CTHREADS */ | |
155 | ||
1cfa4ec7 | 156 | #ifndef YIELD |
e7a4f449 JH |
157 | # ifdef SCHED_YIELD |
158 | # define YIELD SCHED_YIELD | |
c2844c4f AC |
159 | # elif defined(HAS_SCHED_YIELD) |
160 | # define YIELD sched_yield() | |
161 | # elif defined(HAS_PTHREAD_YIELD) | |
e7a4f449 JH |
162 | /* pthread_yield(NULL) platforms are expected |
163 | * to have #defined YIELD for themselves. */ | |
c2844c4f | 164 | # define YIELD pthread_yield() |
e7a4f449 | 165 | # endif |
9731c6ca | 166 | #endif |
11343788 | 167 | |
227c31c3 JH |
168 | #ifdef __hpux |
169 | # define MUTEX_INIT_NEEDS_MUTEX_ZEROED | |
170 | #endif | |
171 | ||
ea0efc06 | 172 | #ifndef MUTEX_INIT |
ba869deb GS |
173 | |
174 | # ifdef MUTEX_INIT_NEEDS_MUTEX_ZEROED | |
227c31c3 | 175 | /* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */ |
ba869deb | 176 | # define MUTEX_INIT(m) \ |
c26596b3 KW |
177 | STMT_START { \ |
178 | int _eC_; \ | |
179 | Zero((m), 1, perl_mutex); \ | |
180 | if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default)))\ | |
181 | Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \ | |
182 | _eC_, __FILE__, __LINE__); \ | |
227c31c3 | 183 | } STMT_END |
ba869deb GS |
184 | # else |
185 | # define MUTEX_INIT(m) \ | |
ea0efc06 | 186 | STMT_START { \ |
1604cfb0 | 187 | int _eC_; \ |
c26596b3 KW |
188 | if ((_eC_ = pthread_mutex_init((m), pthread_mutexattr_default))) \ |
189 | Perl_croak_nocontext("panic: MUTEX_INIT (%d) [%s:%d]", \ | |
190 | _eC_, __FILE__, __LINE__); \ | |
ea0efc06 | 191 | } STMT_END |
ba869deb GS |
192 | # endif |
193 | ||
3baee7cc JH |
194 | # ifdef PERL_TSA_ACTIVE |
195 | # define perl_pthread_mutex_lock(m) perl_tsa_mutex_lock(m) | |
196 | # define perl_pthread_mutex_unlock(m) perl_tsa_mutex_unlock(m) | |
197 | # else | |
198 | # define perl_pthread_mutex_lock(m) pthread_mutex_lock(m) | |
199 | # define perl_pthread_mutex_unlock(m) pthread_mutex_unlock(m) | |
200 | # endif | |
201 | ||
c26596b3 | 202 | # define MUTEX_LOCK(m) \ |
ba869deb | 203 | STMT_START { \ |
5d56ab3b | 204 | dSAVE_ERRNO; \ |
1604cfb0 | 205 | int _eC_; \ |
c26596b3 KW |
206 | if ((_eC_ = perl_pthread_mutex_lock((m)))) \ |
207 | Perl_croak_nocontext("panic: MUTEX_LOCK (%d) [%s:%d]",\ | |
1604cfb0 | 208 | _eC_, __FILE__, __LINE__); \ |
5d56ab3b | 209 | RESTORE_ERRNO; \ |
cea2e8a9 | 210 | } STMT_END |
ba869deb | 211 | |
c26596b3 | 212 | # define MUTEX_UNLOCK(m) \ |
ba869deb | 213 | STMT_START { \ |
5d56ab3b | 214 | dSAVE_ERRNO; /* Shouldn't be necessary as panics if fails */\ |
1604cfb0 | 215 | int _eC_; \ |
c26596b3 KW |
216 | if ((_eC_ = perl_pthread_mutex_unlock((m)))) { \ |
217 | Perl_croak_nocontext( \ | |
218 | "panic: MUTEX_UNLOCK (%d) [%s:%d]", \ | |
1604cfb0 | 219 | _eC_, __FILE__, __LINE__); \ |
c26596b3 | 220 | } \ |
5d56ab3b | 221 | RESTORE_ERRNO; \ |
ea0efc06 | 222 | } STMT_END |
ba869deb | 223 | |
c26596b3 | 224 | # define MUTEX_DESTROY(m) \ |
ba869deb | 225 | STMT_START { \ |
1604cfb0 | 226 | int _eC_; \ |
c26596b3 | 227 | if ((_eC_ = pthread_mutex_destroy((m)))) { \ |
1604cfb0 MS |
228 | Perl_croak_nocontext("panic: MUTEX_DESTROY (%d) [%s:%d]", \ |
229 | _eC_, __FILE__, __LINE__); \ | |
c26596b3 | 230 | } \ |
ea0efc06 MB |
231 | } STMT_END |
232 | #endif /* MUTEX_INIT */ | |
233 | ||
234 | #ifndef COND_INIT | |
ba869deb | 235 | # define COND_INIT(c) \ |
ea0efc06 | 236 | STMT_START { \ |
1604cfb0 MS |
237 | int _eC_; \ |
238 | if ((_eC_ = pthread_cond_init((c), pthread_condattr_default))) \ | |
239 | Perl_croak_nocontext("panic: COND_INIT (%d) [%s:%d]", \ | |
240 | _eC_, __FILE__, __LINE__); \ | |
ea0efc06 | 241 | } STMT_END |
ba869deb GS |
242 | |
243 | # define COND_SIGNAL(c) \ | |
244 | STMT_START { \ | |
1604cfb0 MS |
245 | int _eC_; \ |
246 | if ((_eC_ = pthread_cond_signal((c)))) \ | |
247 | Perl_croak_nocontext("panic: COND_SIGNAL (%d) [%s:%d]", \ | |
248 | _eC_, __FILE__, __LINE__); \ | |
ea0efc06 | 249 | } STMT_END |
ba869deb GS |
250 | |
251 | # define COND_BROADCAST(c) \ | |
252 | STMT_START { \ | |
1604cfb0 MS |
253 | int _eC_; \ |
254 | if ((_eC_ = pthread_cond_broadcast((c)))) \ | |
255 | Perl_croak_nocontext("panic: COND_BROADCAST (%d) [%s:%d]", \ | |
256 | _eC_, __FILE__, __LINE__); \ | |
ea0efc06 | 257 | } STMT_END |
ba869deb GS |
258 | |
259 | # define COND_WAIT(c, m) \ | |
260 | STMT_START { \ | |
1604cfb0 MS |
261 | int _eC_; \ |
262 | if ((_eC_ = pthread_cond_wait((c), (m)))) \ | |
263 | Perl_croak_nocontext("panic: COND_WAIT (%d) [%s:%d]", \ | |
264 | _eC_, __FILE__, __LINE__); \ | |
ea0efc06 | 265 | } STMT_END |
ba869deb GS |
266 | |
267 | # define COND_DESTROY(c) \ | |
268 | STMT_START { \ | |
1604cfb0 MS |
269 | int _eC_; \ |
270 | if ((_eC_ = pthread_cond_destroy((c)))) \ | |
271 | Perl_croak_nocontext("panic: COND_DESTROY (%d) [%s:%d]", \ | |
272 | _eC_, __FILE__, __LINE__); \ | |
ea0efc06 MB |
273 | } STMT_END |
274 | #endif /* COND_INIT */ | |
33f46ff6 | 275 | |
5640a370 KW |
276 | #if defined(MUTEX_LOCK) && defined(MUTEX_UNLOCK) \ |
277 | && defined(COND_SIGNAL) && defined(COND_WAIT) | |
278 | ||
279 | /* These emulate native many-reader/1-writer locks. | |
280 | * Basically a locking reader just locks the semaphore long enough to increment | |
281 | * a counter; and similarly decrements it when when through. Any writer will | |
282 | * run only when the count of readers is 0. That is because it blocks on that | |
283 | * semaphore (doing a COND_WAIT) until it gets control of it, which won't | |
284 | * happen unless the count becomes 0. ALL readers and other writers are then | |
285 | * blocked until it releases the semaphore. The reader whose unlocking causes | |
286 | * the count to become 0 signals any waiting writers, and the system guarantees | |
287 | * that only one gets control at a time */ | |
288 | ||
289 | # define PERL_READ_LOCK(mutex) \ | |
290 | STMT_START { \ | |
385ff598 | 291 | MUTEX_LOCK(&(mutex)->lock); \ |
c4f0298e | 292 | (mutex)->readers_count++; \ |
385ff598 | 293 | MUTEX_UNLOCK(&(mutex)->lock); \ |
5640a370 KW |
294 | } STMT_END |
295 | ||
296 | # define PERL_READ_UNLOCK(mutex) \ | |
297 | STMT_START { \ | |
385ff598 | 298 | MUTEX_LOCK(&(mutex)->lock); \ |
c4f0298e KW |
299 | (mutex)->readers_count--; \ |
300 | if ((mutex)->readers_count <= 0) { \ | |
7510ca24 | 301 | assert((mutex)->readers_count == 0); \ |
385ff598 | 302 | COND_SIGNAL(&(mutex)->wakeup); \ |
c4f0298e | 303 | (mutex)->readers_count = 0; \ |
5640a370 | 304 | } \ |
385ff598 | 305 | MUTEX_UNLOCK(&(mutex)->lock); \ |
5640a370 KW |
306 | } STMT_END |
307 | ||
308 | # define PERL_WRITE_LOCK(mutex) \ | |
309 | STMT_START { \ | |
385ff598 | 310 | MUTEX_LOCK(&(mutex)->lock); \ |
5640a370 | 311 | do { \ |
7510ca24 KW |
312 | if ((mutex)->readers_count <= 0) { \ |
313 | assert((mutex)->readers_count == 0); \ | |
314 | (mutex)->readers_count = 0; \ | |
5640a370 | 315 | break; \ |
7510ca24 | 316 | } \ |
385ff598 | 317 | COND_WAIT(&(mutex)->wakeup, &(mutex)->lock); \ |
5640a370 KW |
318 | } \ |
319 | while (1); \ | |
320 | \ | |
321 | /* Here, the mutex is locked, with no readers */ \ | |
322 | } STMT_END | |
323 | ||
2cca577c KW |
324 | # define PERL_WRITE_UNLOCK(mutex) \ |
325 | STMT_START { \ | |
385ff598 TC |
326 | COND_SIGNAL(&(mutex)->wakeup); \ |
327 | MUTEX_UNLOCK(&(mutex)->lock); \ | |
2cca577c | 328 | } STMT_END |
c4f0298e | 329 | |
72dfa47e KW |
330 | # define PERL_RW_MUTEX_INIT(mutex) \ |
331 | STMT_START { \ | |
385ff598 TC |
332 | MUTEX_INIT(&(mutex)->lock); \ |
333 | COND_INIT(&(mutex)->wakeup); \ | |
72dfa47e KW |
334 | (mutex)->readers_count = 0; \ |
335 | } STMT_END | |
336 | ||
337 | # define PERL_RW_MUTEX_DESTROY(mutex) \ | |
338 | STMT_START { \ | |
385ff598 TC |
339 | COND_DESTROY(&(mutex)->wakeup); \ |
340 | MUTEX_DESTROY(&(mutex)->lock); \ | |
72dfa47e KW |
341 | } STMT_END |
342 | ||
5640a370 KW |
343 | #endif |
344 | ||
f826a10b | 345 | /* DETACH(t) must only be called while holding t->mutex */ |
ea0efc06 | 346 | #ifndef DETACH |
ba869deb GS |
347 | # define DETACH(t) \ |
348 | STMT_START { \ | |
1604cfb0 MS |
349 | int _eC_; \ |
350 | if ((_eC_ = pthread_detach((t)->self))) { \ | |
351 | MUTEX_UNLOCK(&(t)->mutex); \ | |
352 | Perl_croak_nocontext("panic: DETACH (%d) [%s:%d]", \ | |
353 | _eC_, __FILE__, __LINE__); \ | |
354 | } \ | |
ea0efc06 MB |
355 | } STMT_END |
356 | #endif /* DETACH */ | |
33f46ff6 | 357 | |
ea0efc06 | 358 | #ifndef JOIN |
ba869deb GS |
359 | # define JOIN(t, avp) \ |
360 | STMT_START { \ | |
1604cfb0 MS |
361 | int _eC_; \ |
362 | if ((_eC_ = pthread_join((t)->self, (void**)(avp)))) \ | |
363 | Perl_croak_nocontext("panic: pthread_join (%d) [%s:%d]", \ | |
364 | _eC_, __FILE__, __LINE__); \ | |
ea0efc06 MB |
365 | } STMT_END |
366 | #endif /* JOIN */ | |
367 | ||
0953243c JH |
368 | /* Use an unchecked fetch of thread-specific data instead of a checked one. |
369 | * It would fail if the key were bogus, but if the key were bogus then | |
370 | * Really Bad Things would be happening anyway. --dan */ | |
026b9da6 | 371 | #if (defined(__ALPHA) && (__VMS_VER >= 70000000)) || \ |
cb23e6a4 | 372 | (defined(__alpha) && defined(__osf__) && !defined(__GNUC__)) /* Available only on >= 4.0 */ |
8b8b35ab JH |
373 | # define HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP /* Configure test needed */ |
374 | #endif | |
375 | ||
376 | #ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP | |
377 | # define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key) | |
378 | #else | |
6cfe8af5 | 379 | # define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key) |
8b8b35ab JH |
380 | #endif |
381 | ||
c4b6855d NC |
382 | #if defined(PERL_THREAD_LOCAL) && !defined(PERL_GET_CONTEXT) && !defined(PERL_SET_CONTEXT) && !defined(__cplusplus) |
383 | /* Use C11 thread-local storage, where possible. | |
384 | * Frustratingly we can't use it for C++ extensions, C++ and C disagree on the | |
385 | * syntax used for thread local storage, meaning that the working token that | |
386 | * Configure probed for C turns out to be a compiler error on C++. Great. | |
387 | * (Well, unless one or both is supporting non-standard syntax as an extension) | |
388 | * As Configure doesn't have a way to probe for C++ dialects, we just take the | |
389 | * safe option and do the same as 5.34.0 and earlier - use pthreads on C++. | |
390 | * Of course, if C++ XS extensions really want to avoid *all* this overhead, | |
391 | * they should #define PERL_NO_GET_CONTEXT and pass aTHX/aTHX_ explicitly) */ | |
3683a9ee NC |
392 | # define PERL_USE_THREAD_LOCAL |
393 | extern PERL_THREAD_LOCAL void *PL_current_context; | |
394 | ||
395 | # define PERL_GET_CONTEXT PL_current_context | |
396 | ||
34e35871 NC |
397 | /* We must also call pthread_setspecific() always, as C++ code has to read it |
398 | * with pthreads (the #else side just below) */ | |
399 | ||
3683a9ee NC |
400 | # define PERL_SET_CONTEXT(t) \ |
401 | STMT_START { \ | |
402 | int _eC_; \ | |
403 | if ((_eC_ = pthread_setspecific(PL_thr_key, PL_current_context = (void *)(t)))) \ | |
404 | Perl_croak_nocontext("panic: pthread_setspecific (%d) [%s:%d]", \ | |
405 | _eC_, __FILE__, __LINE__); \ | |
406 | } STMT_END | |
407 | ||
408 | #else | |
409 | /* else fall back to pthreads */ | |
410 | ||
411 | # ifndef PERL_GET_CONTEXT | |
412 | # define PERL_GET_CONTEXT PTHREAD_GETSPECIFIC(PL_thr_key) | |
413 | # endif | |
ba869deb | 414 | |
34e35871 NC |
415 | /* For C++ extensions built on a system where the C compiler provides thread |
416 | * local storage that call PERL_SET_CONTEXT() also need to set | |
417 | * PL_current_context, so need to call into C code to do this. | |
418 | * To avoid exploding code complexity, do this also on C platforms that don't | |
419 | * support thread local storage. PERL_SET_CONTEXT is not called that often. */ | |
420 | ||
3683a9ee | 421 | # ifndef PERL_SET_CONTEXT |
34e35871 | 422 | # define PERL_SET_CONTEXT(t) Perl_set_context((void*)t) |
3683a9ee NC |
423 | # endif /* PERL_SET_CONTEXT */ |
424 | #endif /* PERL_THREAD_LOCAL */ | |
ea0efc06 | 425 | |
1feb2720 GS |
426 | #ifndef INIT_THREADS |
427 | # ifdef NEED_PTHREAD_INIT | |
428 | # define INIT_THREADS pthread_init() | |
429 | # endif | |
0d85d877 | 430 | #endif |
ea0efc06 | 431 | |
ba869deb GS |
432 | #ifndef ALLOC_THREAD_KEY |
433 | # define ALLOC_THREAD_KEY \ | |
434 | STMT_START { \ | |
1604cfb0 | 435 | if (pthread_key_create(&PL_thr_key, 0)) { \ |
b469f1e0 | 436 | PERL_UNUSED_RESULT(write(2, STR_WITH_LEN("panic: pthread_key_create failed\n"))); \ |
1604cfb0 MS |
437 | exit(1); \ |
438 | } \ | |
ba869deb GS |
439 | } STMT_END |
440 | #endif | |
441 | ||
e1b5da64 GS |
442 | #ifndef FREE_THREAD_KEY |
443 | # define FREE_THREAD_KEY \ | |
444 | STMT_START { \ | |
1604cfb0 | 445 | pthread_key_delete(PL_thr_key); \ |
e1b5da64 GS |
446 | } STMT_END |
447 | #endif | |
448 | ||
50dd6e57 | 449 | #ifndef PTHREAD_ATFORK |
144e72cb RS |
450 | # ifdef HAS_PTHREAD_ATFORK |
451 | # define PTHREAD_ATFORK(prepare,parent,child) \ | |
1604cfb0 | 452 | pthread_atfork(prepare,parent,child) |
144e72cb | 453 | # else |
8ff9412f | 454 | # define PTHREAD_ATFORK(prepare,parent,child) \ |
1604cfb0 | 455 | NOOP |
144e72cb | 456 | # endif |
50dd6e57 GS |
457 | #endif |
458 | ||
1feb2720 GS |
459 | #ifndef THREAD_RET_TYPE |
460 | # define THREAD_RET_TYPE void * | |
1feb2720 GS |
461 | #endif /* THREAD_RET */ |
462 | ||
e2975953 JH |
463 | # define LOCK_DOLLARZERO_MUTEX MUTEX_LOCK(&PL_dollarzero_mutex) |
464 | # define UNLOCK_DOLLARZERO_MUTEX MUTEX_UNLOCK(&PL_dollarzero_mutex) | |
465 | ||
3db8f154 | 466 | #endif /* USE_ITHREADS */ |
1feb2720 GS |
467 | |
468 | #ifndef MUTEX_LOCK | |
63d37b7a | 469 | # define MUTEX_LOCK(m) NOOP |
1feb2720 GS |
470 | #endif |
471 | ||
1feb2720 | 472 | #ifndef MUTEX_UNLOCK |
63d37b7a | 473 | # define MUTEX_UNLOCK(m) NOOP |
1feb2720 | 474 | #endif |
1feb2720 GS |
475 | |
476 | #ifndef MUTEX_INIT | |
63d37b7a | 477 | # define MUTEX_INIT(m) NOOP |
1feb2720 GS |
478 | #endif |
479 | ||
480 | #ifndef MUTEX_DESTROY | |
63d37b7a | 481 | # define MUTEX_DESTROY(m) NOOP |
1feb2720 GS |
482 | #endif |
483 | ||
484 | #ifndef COND_INIT | |
63d37b7a | 485 | # define COND_INIT(c) NOOP |
1feb2720 GS |
486 | #endif |
487 | ||
488 | #ifndef COND_SIGNAL | |
63d37b7a | 489 | # define COND_SIGNAL(c) NOOP |
1feb2720 GS |
490 | #endif |
491 | ||
492 | #ifndef COND_BROADCAST | |
63d37b7a | 493 | # define COND_BROADCAST(c) NOOP |
1feb2720 GS |
494 | #endif |
495 | ||
496 | #ifndef COND_WAIT | |
63d37b7a | 497 | # define COND_WAIT(c, m) NOOP |
1feb2720 GS |
498 | #endif |
499 | ||
500 | #ifndef COND_DESTROY | |
63d37b7a | 501 | # define COND_DESTROY(c) NOOP |
1feb2720 GS |
502 | #endif |
503 | ||
5640a370 KW |
504 | #ifndef PERL_READ_LOCK |
505 | # define PERL_READ_LOCK NOOP | |
506 | # define PERL_READ_UNLOCK NOOP | |
507 | # define PERL_WRITE_LOCK NOOP | |
508 | # define PERL_WRITE_UNLOCK NOOP | |
13d2ab8b TC |
509 | # define PERL_RW_MUTEX_INIT NOOP |
510 | # define PERL_RW_MUTEX_DESTROY NOOP | |
5640a370 KW |
511 | #endif |
512 | ||
e2975953 | 513 | #ifndef LOCK_DOLLARZERO_MUTEX |
63d37b7a | 514 | # define LOCK_DOLLARZERO_MUTEX NOOP |
e2975953 JH |
515 | #endif |
516 | ||
517 | #ifndef UNLOCK_DOLLARZERO_MUTEX | |
63d37b7a | 518 | # define UNLOCK_DOLLARZERO_MUTEX NOOP |
e2975953 JH |
519 | #endif |
520 | ||
ba869deb | 521 | /* THR, SET_THR, and dTHR are there for compatibility with old versions */ |
1feb2720 | 522 | #ifndef THR |
ba869deb GS |
523 | # define THR PERL_GET_THX |
524 | #endif | |
525 | ||
526 | #ifndef SET_THR | |
527 | # define SET_THR(t) PERL_SET_THX(t) | |
1feb2720 GS |
528 | #endif |
529 | ||
530 | #ifndef dTHR | |
531 | # define dTHR dNOOP | |
532 | #endif | |
533 | ||
534 | #ifndef INIT_THREADS | |
535 | # define INIT_THREADS NOOP | |
536 | #endif | |
e9a8c099 MHM |
537 | |
538 | /* | |
14d04a33 | 539 | * ex: set ts=8 sts=4 sw=4 et: |
e9a8c099 | 540 | */ |