Commit | Line | Data |
---|---|---|
ea0efc06 | 1 | #ifdef USE_THREADS |
12ca11f6 | 2 | |
ea0efc06 | 3 | #ifdef WIN32 |
d55594ae GS |
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 MB |
12 | } \ |
13 | } STMT_END | |
9bbd4fab | 14 | # define THR getTHR() |
20ce7b12 | 15 | struct perl_thread *getTHR (void); |
0d85d877 JH |
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 JH |
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 JH |
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 JH |
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 JH |
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 JH |
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 BH |
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 BH |
72 | } \ |
73 | } STMT_END | |
74 | ||
75 | #define MUTEX_LOCK(m) mutex_lock(*m) | |
76 | #define MUTEX_UNLOCK(m) mutex_unlock(*m) | |
77 | #define MUTEX_DESTROY(m) \ | |
78 | STMT_START { \ | |
79 | mutex_free(*m); \ | |
80 | *m = 0; \ | |
81 | } STMT_END | |
82 | ||
83 | #define COND_INIT(c) \ | |
84 | STMT_START { \ | |
85 | *c = condition_alloc(); \ | |
86 | if (*c) { \ | |
87 | condition_init(*c); \ | |
88 | } else { \ | |
cea2e8a9 | 89 | Perl_croak(aTHX_ "panic: COND_INIT"); \ |
7f3d1cf1 BH |
90 | } \ |
91 | } STMT_END | |
92 | ||
93 | #define COND_SIGNAL(c) condition_signal(*c) | |
94 | #define COND_BROADCAST(c) condition_broadcast(*c) | |
95 | #define COND_WAIT(c, m) condition_wait(*c, *m) | |
96 | #define COND_DESTROY(c) \ | |
97 | STMT_START { \ | |
98 | condition_free(*c); \ | |
99 | *c = 0; \ | |
100 | } STMT_END | |
101 | ||
102 | #define THREAD_CREATE(thr, f) (thr->self = cthread_fork(f, thr), 0) | |
103 | #define THREAD_POST_CREATE(thr) | |
104 | ||
105 | #define THREAD_RET_TYPE any_t | |
106 | #define THREAD_RET_CAST(x) ((any_t) x) | |
107 | ||
108 | #define DETACH(t) cthread_detach(t->self) | |
109 | #define JOIN(t, avp) (*(avp) = (AV *)cthread_join(t->self)) | |
110 | ||
111 | #define SET_THR(thr) cthread_set_data(cthread_self(), thr) | |
112 | #define THR cthread_data(cthread_self()) | |
113 | ||
114 | #define INIT_THREADS cthread_init() | |
115 | #define YIELD cthread_yield() | |
116 | #define ALLOC_THREAD_KEY | |
117 | #define SET_THREAD_SELF(thr) (thr->self = cthread_self()) | |
118 | ||
119 | #endif /* I_MACH_CTHREADS */ | |
120 | ||
1cfa4ec7 | 121 | #ifndef YIELD |
e7a4f449 JH |
122 | # ifdef SCHED_YIELD |
123 | # define YIELD SCHED_YIELD | |
124 | # else | |
125 | # ifdef HAS_SCHED_YIELD | |
126 | # define YIELD sched_yield() | |
127 | # else | |
128 | # ifdef HAS_PTHREAD_YIELD | |
129 | /* pthread_yield(NULL) platforms are expected | |
130 | * to have #defined YIELD for themselves. */ | |
131 | # define YIELD pthread_yield() | |
132 | # endif | |
133 | # endif | |
134 | # endif | |
9731c6ca | 135 | #endif |
11343788 | 136 | |
227c31c3 JH |
137 | #ifdef __hpux |
138 | # define MUTEX_INIT_NEEDS_MUTEX_ZEROED | |
139 | #endif | |
140 | ||
ea0efc06 | 141 | #ifndef MUTEX_INIT |
227c31c3 JH |
142 | #ifdef MUTEX_INIT_NEEDS_MUTEX_ZEROED |
143 | /* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */ | |
144 | #define MUTEX_INIT(m) \ | |
145 | STMT_START { \ | |
146 | Zero((m), 1, perl_mutex); \ | |
147 | if (pthread_mutex_init((m), pthread_mutexattr_default)) \ | |
cea2e8a9 | 148 | Perl_croak(aTHX_ "panic: MUTEX_INIT"); \ |
227c31c3 JH |
149 | } STMT_END |
150 | #else | |
ea0efc06 MB |
151 | #define MUTEX_INIT(m) \ |
152 | STMT_START { \ | |
153 | if (pthread_mutex_init((m), pthread_mutexattr_default)) \ | |
cea2e8a9 | 154 | Perl_croak(aTHX_ "panic: MUTEX_INIT"); \ |
ea0efc06 | 155 | } STMT_END |
227c31c3 | 156 | #endif |
ea0efc06 MB |
157 | #define MUTEX_LOCK(m) \ |
158 | STMT_START { \ | |
159 | if (pthread_mutex_lock((m))) \ | |
cea2e8a9 | 160 | Perl_croak(aTHX_ "panic: MUTEX_LOCK"); \ |
ea0efc06 MB |
161 | } STMT_END |
162 | #define MUTEX_UNLOCK(m) \ | |
163 | STMT_START { \ | |
164 | if (pthread_mutex_unlock((m))) \ | |
cea2e8a9 GS |
165 | Perl_croak(aTHX_ "panic: MUTEX_UNLOCK"); \ |
166 | } STMT_END | |
167 | #define MUTEX_LOCK_NOCONTEXT(m) \ | |
168 | STMT_START { \ | |
169 | if (pthread_mutex_lock((m))) \ | |
170 | Perl_croak_nocontext("panic: MUTEX_LOCK"); \ | |
171 | } STMT_END | |
172 | #define MUTEX_UNLOCK_NOCONTEXT(m) \ | |
173 | STMT_START { \ | |
174 | if (pthread_mutex_unlock((m))) \ | |
175 | Perl_croak_nocontext("panic: MUTEX_UNLOCK");\ | |
ea0efc06 MB |
176 | } STMT_END |
177 | #define MUTEX_DESTROY(m) \ | |
178 | STMT_START { \ | |
179 | if (pthread_mutex_destroy((m))) \ | |
cea2e8a9 | 180 | Perl_croak(aTHX_ "panic: MUTEX_DESTROY"); \ |
ea0efc06 MB |
181 | } STMT_END |
182 | #endif /* MUTEX_INIT */ | |
183 | ||
184 | #ifndef COND_INIT | |
185 | #define COND_INIT(c) \ | |
186 | STMT_START { \ | |
187 | if (pthread_cond_init((c), pthread_condattr_default)) \ | |
cea2e8a9 | 188 | Perl_croak(aTHX_ "panic: COND_INIT"); \ |
ea0efc06 MB |
189 | } STMT_END |
190 | #define COND_SIGNAL(c) \ | |
191 | STMT_START { \ | |
192 | if (pthread_cond_signal((c))) \ | |
cea2e8a9 | 193 | Perl_croak(aTHX_ "panic: COND_SIGNAL"); \ |
ea0efc06 MB |
194 | } STMT_END |
195 | #define COND_BROADCAST(c) \ | |
196 | STMT_START { \ | |
197 | if (pthread_cond_broadcast((c))) \ | |
cea2e8a9 | 198 | Perl_croak(aTHX_ "panic: COND_BROADCAST"); \ |
ea0efc06 MB |
199 | } STMT_END |
200 | #define COND_WAIT(c, m) \ | |
201 | STMT_START { \ | |
202 | if (pthread_cond_wait((c), (m))) \ | |
cea2e8a9 | 203 | Perl_croak(aTHX_ "panic: COND_WAIT"); \ |
ea0efc06 MB |
204 | } STMT_END |
205 | #define COND_DESTROY(c) \ | |
206 | STMT_START { \ | |
207 | if (pthread_cond_destroy((c))) \ | |
cea2e8a9 | 208 | Perl_croak(aTHX_ "panic: COND_DESTROY"); \ |
ea0efc06 MB |
209 | } STMT_END |
210 | #endif /* COND_INIT */ | |
33f46ff6 | 211 | |
f826a10b | 212 | /* DETACH(t) must only be called while holding t->mutex */ |
ea0efc06 MB |
213 | #ifndef DETACH |
214 | #define DETACH(t) \ | |
215 | STMT_START { \ | |
46930d8f | 216 | if (pthread_detach((t)->self)) { \ |
ea0efc06 | 217 | MUTEX_UNLOCK(&(t)->mutex); \ |
cea2e8a9 | 218 | Perl_croak(aTHX_ "panic: DETACH"); \ |
ea0efc06 MB |
219 | } \ |
220 | } STMT_END | |
221 | #endif /* DETACH */ | |
33f46ff6 | 222 | |
ea0efc06 MB |
223 | #ifndef JOIN |
224 | #define JOIN(t, avp) \ | |
225 | STMT_START { \ | |
46930d8f | 226 | if (pthread_join((t)->self, (void**)(avp))) \ |
cea2e8a9 | 227 | Perl_croak(aTHX_ "panic: pthread_join"); \ |
ea0efc06 MB |
228 | } STMT_END |
229 | #endif /* JOIN */ | |
230 | ||
231 | #ifndef SET_THR | |
232 | #define SET_THR(t) \ | |
233 | STMT_START { \ | |
533c011a | 234 | if (pthread_setspecific(PL_thr_key, (void *) (t))) \ |
cea2e8a9 | 235 | Perl_croak(aTHX_ "panic: pthread_setspecific"); \ |
ea0efc06 MB |
236 | } STMT_END |
237 | #endif /* SET_THR */ | |
238 | ||
239 | #ifndef THR | |
0d85d877 JH |
240 | #define THR ((struct perl_thread *) pthread_getspecific(PL_thr_key)) |
241 | #endif | |
ea0efc06 | 242 | |
940cb80d MB |
243 | /* |
244 | * dTHR is performance-critical. Here, we only do the pthread_get_specific | |
245 | * if there may be more than one thread in existence, otherwise we get thr | |
246 | * from thrsv which is cached in the per-interpreter structure. | |
247 | * Systems with very fast pthread_get_specific (which should be all systems | |
248 | * but unfortunately isn't) may wish to simplify to "...*thr = THR". | |
b099ddc0 GS |
249 | * |
250 | * The use of PL_threadnum should be safe here. | |
940cb80d | 251 | */ |
ea0efc06 | 252 | #ifndef dTHR |
940cb80d | 253 | # define dTHR \ |
533c011a | 254 | struct perl_thread *thr = PL_threadnum? THR : (struct perl_thread*)SvPVX(PL_thrsv) |
ea0efc06 | 255 | #endif /* dTHR */ |
11343788 | 256 | |
33f46ff6 MB |
257 | #ifndef INIT_THREADS |
258 | # ifdef NEED_PTHREAD_INIT | |
259 | # define INIT_THREADS pthread_init() | |
260 | # else | |
261 | # define INIT_THREADS NOOP | |
262 | # endif | |
263 | #endif | |
11343788 | 264 | |
940cb80d MB |
265 | /* Accessor for per-thread SVs */ |
266 | #define THREADSV(i) (thr->threadsvp[i]) | |
267 | ||
268 | /* | |
269 | * LOCK_SV_MUTEX and UNLOCK_SV_MUTEX are performance-critical. Here, we | |
270 | * try only locking them if there may be more than one thread in existence. | |
271 | * Systems with very fast mutexes (and/or slow conditionals) may wish to | |
272 | * remove the "if (threadnum) ..." test. | |
b099ddc0 | 273 | * XXX do NOT use C<if (PL_threadnum) ...> -- it sets up race conditions! |
940cb80d | 274 | */ |
5f08fbcd GS |
275 | #define LOCK_SV_MUTEX \ |
276 | STMT_START { \ | |
b099ddc0 | 277 | MUTEX_LOCK(&PL_sv_mutex); \ |
5f08fbcd GS |
278 | } STMT_END |
279 | ||
280 | #define UNLOCK_SV_MUTEX \ | |
281 | STMT_START { \ | |
b099ddc0 | 282 | MUTEX_UNLOCK(&PL_sv_mutex); \ |
940cb80d MB |
283 | } STMT_END |
284 | ||
5f08fbcd GS |
285 | /* Likewise for strtab_mutex */ |
286 | #define LOCK_STRTAB_MUTEX \ | |
287 | STMT_START { \ | |
b099ddc0 | 288 | MUTEX_LOCK(&PL_strtab_mutex); \ |
5f08fbcd GS |
289 | } STMT_END |
290 | ||
291 | #define UNLOCK_STRTAB_MUTEX \ | |
292 | STMT_START { \ | |
b099ddc0 | 293 | MUTEX_UNLOCK(&PL_strtab_mutex); \ |
940cb80d | 294 | } STMT_END |
d55594ae | 295 | |
ea0efc06 MB |
296 | #ifndef THREAD_RET_TYPE |
297 | # define THREAD_RET_TYPE void * | |
298 | # define THREAD_RET_CAST(p) ((void *)(p)) | |
299 | #endif /* THREAD_RET */ | |
300 | ||
11343788 | 301 | |
33f46ff6 | 302 | /* Values and macros for thr->flags */ |
605e5515 MB |
303 | #define THRf_STATE_MASK 7 |
304 | #define THRf_R_JOINABLE 0 | |
305 | #define THRf_R_JOINED 1 | |
306 | #define THRf_R_DETACHED 2 | |
307 | #define THRf_ZOMBIE 3 | |
308 | #define THRf_DEAD 4 | |
f93b4edd | 309 | |
458fb581 | 310 | #define THRf_DID_DIE 8 |
07b73707 | 311 | |
f826a10b | 312 | /* ThrSTATE(t) and ThrSETSTATE(t) must only be called while holding t->mutex */ |
458fb581 | 313 | #define ThrSTATE(t) ((t)->flags & THRf_STATE_MASK) |
f93b4edd | 314 | #define ThrSETSTATE(t, s) STMT_START { \ |
605e5515 | 315 | (t)->flags &= ~THRf_STATE_MASK; \ |
33f46ff6 | 316 | (t)->flags |= (s); \ |
8b73bbec | 317 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), \ |
605e5515 | 318 | "thread %p set to state %d\n", (t), (s))); \ |
f93b4edd MB |
319 | } STMT_END |
320 | ||
321 | typedef struct condpair { | |
f826a10b MB |
322 | perl_mutex mutex; /* Protects all other fields */ |
323 | perl_cond owner_cond; /* For when owner changes at all */ | |
324 | perl_cond cond; /* For cond_signal and cond_broadcast */ | |
325 | Thread owner; /* Currently owning thread */ | |
f93b4edd MB |
326 | } condpair_t; |
327 | ||
328 | #define MgMUTEXP(mg) (&((condpair_t *)(mg->mg_ptr))->mutex) | |
329 | #define MgOWNERCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->owner_cond) | |
330 | #define MgCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->cond) | |
331 | #define MgOWNER(mg) ((condpair_t *)(mg->mg_ptr))->owner | |
332 | ||
ea0efc06 MB |
333 | #else |
334 | /* USE_THREADS is not defined */ | |
335 | #define MUTEX_LOCK(m) | |
cea2e8a9 | 336 | #define MUTEX_LOCK_NOCONTEXT(m) |
ea0efc06 | 337 | #define MUTEX_UNLOCK(m) |
cea2e8a9 | 338 | #define MUTEX_UNLOCK_NOCONTEXT(m) |
ea0efc06 MB |
339 | #define MUTEX_INIT(m) |
340 | #define MUTEX_DESTROY(m) | |
341 | #define COND_INIT(c) | |
342 | #define COND_SIGNAL(c) | |
343 | #define COND_BROADCAST(c) | |
344 | #define COND_WAIT(c, m) | |
345 | #define COND_DESTROY(c) | |
93bce2dc GS |
346 | #define LOCK_SV_MUTEX |
347 | #define UNLOCK_SV_MUTEX | |
5f08fbcd GS |
348 | #define LOCK_STRTAB_MUTEX |
349 | #define UNLOCK_STRTAB_MUTEX | |
ea0efc06 MB |
350 | |
351 | #define THR | |
cea2e8a9 | 352 | #define dTHR dNOOP |
11343788 | 353 | #endif /* USE_THREADS */ |