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 MB |
10 | MUTEX_UNLOCK(&(t)->mutex); \ |
11 | croak("panic: DETACH"); \ | |
12 | } \ | |
13 | } STMT_END | |
9bbd4fab | 14 | # define THR getTHR() |
0d85d877 JH |
15 | struct perl_thread *getTHR _((void)); |
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 JH |
37 | # endif |
38 | # ifndef VMS | |
1cfa4ec7 | 39 | # define pthread_mutexattr_default NULL |
0d85d877 JH |
40 | # define pthread_condattr_default NULL |
41 | # endif | |
42 | #endif | |
43 | ||
44 | #ifndef PTHREAD_CREATE | |
45 | /* You are not supposed to pass NULL as the 2nd arg of PTHREAD_CREATE(). */ | |
46 | # define PTHREAD_CREATE(t,a,s,d) pthread_create(t,&(a),s,d) | |
47 | #endif | |
48 | ||
49 | #ifndef PTHREAD_ATTR_SETDETACHSTATE | |
50 | # define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,s) | |
d55594ae | 51 | #endif |
1cfa4ec7 | 52 | |
ef4af2be JH |
53 | #ifndef PTHREAD_CREATE_JOINABLE |
54 | # ifdef OLD_PTHREAD_CREATE_JOINABLE | |
55 | # define PTHREAD_CREATE_JOINABLE OLD_PTHREAD_CREATE_JOINABLE | |
56 | # else | |
57 | # define PTHREAD_CREATE_JOINABLE 0 /* Panic? No, guess. */ | |
58 | # endif | |
59 | #endif | |
60 | ||
7f3d1cf1 BH |
61 | #ifdef I_MACH_CTHREADS |
62 | ||
63 | /* cthreads interface */ | |
64 | ||
65 | /* #include <mach/cthreads.h> is in perl.h #ifdef I_MACH_CTHREADS */ | |
66 | ||
67 | #define MUTEX_INIT(m) \ | |
68 | STMT_START { \ | |
69 | *m = mutex_alloc(); \ | |
70 | if (*m) { \ | |
71 | mutex_init(*m); \ | |
72 | } else { \ | |
73 | croak("panic: MUTEX_INIT"); \ | |
74 | } \ | |
75 | } STMT_END | |
76 | ||
77 | #define MUTEX_LOCK(m) mutex_lock(*m) | |
78 | #define MUTEX_UNLOCK(m) mutex_unlock(*m) | |
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 { \ | |
91 | croak("panic: COND_INIT"); \ | |
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) | |
114 | #define THR cthread_data(cthread_self()) | |
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 JH |
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 | |
ea0efc06 MB |
139 | #ifndef MUTEX_INIT |
140 | #define MUTEX_INIT(m) \ | |
141 | STMT_START { \ | |
142 | if (pthread_mutex_init((m), pthread_mutexattr_default)) \ | |
143 | croak("panic: MUTEX_INIT"); \ | |
144 | } STMT_END | |
145 | #define MUTEX_LOCK(m) \ | |
146 | STMT_START { \ | |
147 | if (pthread_mutex_lock((m))) \ | |
148 | croak("panic: MUTEX_LOCK"); \ | |
149 | } STMT_END | |
150 | #define MUTEX_UNLOCK(m) \ | |
151 | STMT_START { \ | |
152 | if (pthread_mutex_unlock((m))) \ | |
153 | croak("panic: MUTEX_UNLOCK"); \ | |
154 | } STMT_END | |
155 | #define MUTEX_DESTROY(m) \ | |
156 | STMT_START { \ | |
157 | if (pthread_mutex_destroy((m))) \ | |
158 | croak("panic: MUTEX_DESTROY"); \ | |
159 | } STMT_END | |
160 | #endif /* MUTEX_INIT */ | |
161 | ||
162 | #ifndef COND_INIT | |
163 | #define COND_INIT(c) \ | |
164 | STMT_START { \ | |
165 | if (pthread_cond_init((c), pthread_condattr_default)) \ | |
166 | croak("panic: COND_INIT"); \ | |
167 | } STMT_END | |
168 | #define COND_SIGNAL(c) \ | |
169 | STMT_START { \ | |
170 | if (pthread_cond_signal((c))) \ | |
171 | croak("panic: COND_SIGNAL"); \ | |
172 | } STMT_END | |
173 | #define COND_BROADCAST(c) \ | |
174 | STMT_START { \ | |
175 | if (pthread_cond_broadcast((c))) \ | |
176 | croak("panic: COND_BROADCAST"); \ | |
177 | } STMT_END | |
178 | #define COND_WAIT(c, m) \ | |
179 | STMT_START { \ | |
180 | if (pthread_cond_wait((c), (m))) \ | |
181 | croak("panic: COND_WAIT"); \ | |
182 | } STMT_END | |
183 | #define COND_DESTROY(c) \ | |
184 | STMT_START { \ | |
185 | if (pthread_cond_destroy((c))) \ | |
186 | croak("panic: COND_DESTROY"); \ | |
187 | } STMT_END | |
188 | #endif /* COND_INIT */ | |
33f46ff6 | 189 | |
f826a10b | 190 | /* DETACH(t) must only be called while holding t->mutex */ |
ea0efc06 MB |
191 | #ifndef DETACH |
192 | #define DETACH(t) \ | |
193 | STMT_START { \ | |
46930d8f | 194 | if (pthread_detach((t)->self)) { \ |
ea0efc06 MB |
195 | MUTEX_UNLOCK(&(t)->mutex); \ |
196 | croak("panic: DETACH"); \ | |
197 | } \ | |
198 | } STMT_END | |
199 | #endif /* DETACH */ | |
33f46ff6 | 200 | |
ea0efc06 MB |
201 | #ifndef JOIN |
202 | #define JOIN(t, avp) \ | |
203 | STMT_START { \ | |
46930d8f | 204 | if (pthread_join((t)->self, (void**)(avp))) \ |
ea0efc06 MB |
205 | croak("panic: pthread_join"); \ |
206 | } STMT_END | |
207 | #endif /* JOIN */ | |
208 | ||
209 | #ifndef SET_THR | |
210 | #define SET_THR(t) \ | |
211 | STMT_START { \ | |
533c011a | 212 | if (pthread_setspecific(PL_thr_key, (void *) (t))) \ |
ea0efc06 MB |
213 | croak("panic: pthread_setspecific"); \ |
214 | } STMT_END | |
215 | #endif /* SET_THR */ | |
216 | ||
217 | #ifndef THR | |
0d85d877 JH |
218 | #define THR ((struct perl_thread *) pthread_getspecific(PL_thr_key)) |
219 | #endif | |
ea0efc06 | 220 | |
940cb80d MB |
221 | /* |
222 | * dTHR is performance-critical. Here, we only do the pthread_get_specific | |
223 | * if there may be more than one thread in existence, otherwise we get thr | |
224 | * from thrsv which is cached in the per-interpreter structure. | |
225 | * Systems with very fast pthread_get_specific (which should be all systems | |
226 | * but unfortunately isn't) may wish to simplify to "...*thr = THR". | |
b099ddc0 GS |
227 | * |
228 | * The use of PL_threadnum should be safe here. | |
940cb80d | 229 | */ |
ea0efc06 | 230 | #ifndef dTHR |
940cb80d | 231 | # define dTHR \ |
533c011a | 232 | struct perl_thread *thr = PL_threadnum? THR : (struct perl_thread*)SvPVX(PL_thrsv) |
ea0efc06 | 233 | #endif /* dTHR */ |
11343788 | 234 | |
33f46ff6 MB |
235 | #ifndef INIT_THREADS |
236 | # ifdef NEED_PTHREAD_INIT | |
237 | # define INIT_THREADS pthread_init() | |
238 | # else | |
239 | # define INIT_THREADS NOOP | |
240 | # endif | |
241 | #endif | |
11343788 | 242 | |
940cb80d MB |
243 | /* Accessor for per-thread SVs */ |
244 | #define THREADSV(i) (thr->threadsvp[i]) | |
245 | ||
246 | /* | |
247 | * LOCK_SV_MUTEX and UNLOCK_SV_MUTEX are performance-critical. Here, we | |
248 | * try only locking them if there may be more than one thread in existence. | |
249 | * Systems with very fast mutexes (and/or slow conditionals) may wish to | |
250 | * remove the "if (threadnum) ..." test. | |
b099ddc0 | 251 | * XXX do NOT use C<if (PL_threadnum) ...> -- it sets up race conditions! |
940cb80d | 252 | */ |
5f08fbcd GS |
253 | #define LOCK_SV_MUTEX \ |
254 | STMT_START { \ | |
b099ddc0 | 255 | MUTEX_LOCK(&PL_sv_mutex); \ |
5f08fbcd GS |
256 | } STMT_END |
257 | ||
258 | #define UNLOCK_SV_MUTEX \ | |
259 | STMT_START { \ | |
b099ddc0 | 260 | MUTEX_UNLOCK(&PL_sv_mutex); \ |
940cb80d MB |
261 | } STMT_END |
262 | ||
5f08fbcd GS |
263 | /* Likewise for strtab_mutex */ |
264 | #define LOCK_STRTAB_MUTEX \ | |
265 | STMT_START { \ | |
b099ddc0 | 266 | MUTEX_LOCK(&PL_strtab_mutex); \ |
5f08fbcd GS |
267 | } STMT_END |
268 | ||
269 | #define UNLOCK_STRTAB_MUTEX \ | |
270 | STMT_START { \ | |
b099ddc0 | 271 | MUTEX_UNLOCK(&PL_strtab_mutex); \ |
940cb80d | 272 | } STMT_END |
d55594ae | 273 | |
ea0efc06 MB |
274 | #ifndef THREAD_RET_TYPE |
275 | # define THREAD_RET_TYPE void * | |
276 | # define THREAD_RET_CAST(p) ((void *)(p)) | |
277 | #endif /* THREAD_RET */ | |
278 | ||
11343788 | 279 | |
33f46ff6 | 280 | /* Values and macros for thr->flags */ |
605e5515 MB |
281 | #define THRf_STATE_MASK 7 |
282 | #define THRf_R_JOINABLE 0 | |
283 | #define THRf_R_JOINED 1 | |
284 | #define THRf_R_DETACHED 2 | |
285 | #define THRf_ZOMBIE 3 | |
286 | #define THRf_DEAD 4 | |
f93b4edd | 287 | |
458fb581 | 288 | #define THRf_DID_DIE 8 |
07b73707 | 289 | |
f826a10b | 290 | /* ThrSTATE(t) and ThrSETSTATE(t) must only be called while holding t->mutex */ |
458fb581 | 291 | #define ThrSTATE(t) ((t)->flags & THRf_STATE_MASK) |
f93b4edd | 292 | #define ThrSETSTATE(t, s) STMT_START { \ |
605e5515 | 293 | (t)->flags &= ~THRf_STATE_MASK; \ |
33f46ff6 | 294 | (t)->flags |= (s); \ |
8b73bbec | 295 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), \ |
605e5515 | 296 | "thread %p set to state %d\n", (t), (s))); \ |
f93b4edd MB |
297 | } STMT_END |
298 | ||
299 | typedef struct condpair { | |
f826a10b MB |
300 | perl_mutex mutex; /* Protects all other fields */ |
301 | perl_cond owner_cond; /* For when owner changes at all */ | |
302 | perl_cond cond; /* For cond_signal and cond_broadcast */ | |
303 | Thread owner; /* Currently owning thread */ | |
f93b4edd MB |
304 | } condpair_t; |
305 | ||
306 | #define MgMUTEXP(mg) (&((condpair_t *)(mg->mg_ptr))->mutex) | |
307 | #define MgOWNERCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->owner_cond) | |
308 | #define MgCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->cond) | |
309 | #define MgOWNER(mg) ((condpair_t *)(mg->mg_ptr))->owner | |
310 | ||
ea0efc06 MB |
311 | #else |
312 | /* USE_THREADS is not defined */ | |
313 | #define MUTEX_LOCK(m) | |
314 | #define MUTEX_UNLOCK(m) | |
315 | #define MUTEX_INIT(m) | |
316 | #define MUTEX_DESTROY(m) | |
317 | #define COND_INIT(c) | |
318 | #define COND_SIGNAL(c) | |
319 | #define COND_BROADCAST(c) | |
320 | #define COND_WAIT(c, m) | |
321 | #define COND_DESTROY(c) | |
93bce2dc GS |
322 | #define LOCK_SV_MUTEX |
323 | #define UNLOCK_SV_MUTEX | |
5f08fbcd GS |
324 | #define LOCK_STRTAB_MUTEX |
325 | #define UNLOCK_STRTAB_MUTEX | |
ea0efc06 MB |
326 | |
327 | #define THR | |
328 | /* Rats: if dTHR is just blank then the subsequent ";" throws an error */ | |
76e3520e | 329 | #ifdef WIN32 |
e3b8966e | 330 | #define dTHR extern int Perl___notused |
76e3520e | 331 | #else |
ea0efc06 | 332 | #define dTHR extern int errno |
76e3520e | 333 | #endif |
11343788 | 334 | #endif /* USE_THREADS */ |