Commit | Line | Data |
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ea0efc06 | 1 | #ifdef USE_THREADS |
12ca11f6 | 2 | |
ea0efc06 | 3 | #ifdef WIN32 |
d55594ae GS |
4 | # include <win32thread.h> |
5 | #else | |
12ca11f6 | 6 | |
9731c6ca | 7 | #ifndef DJGPP |
12ca11f6 | 8 | /* POSIXish threads */ |
11343788 | 9 | #ifdef OLD_PTHREADS_API |
ea0efc06 MB |
10 | # define pthread_mutexattr_init(a) pthread_mutexattr_create(a) |
11 | # define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t) | |
12 | # define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d)) | |
13 | # define YIELD pthread_yield() | |
14 | # define DETACH(t) \ | |
15 | STMT_START { \ | |
46930d8f | 16 | if (pthread_detach(&(t)->self)) { \ |
ea0efc06 MB |
17 | MUTEX_UNLOCK(&(t)->mutex); \ |
18 | croak("panic: DETACH"); \ | |
19 | } \ | |
20 | } STMT_END | |
11343788 | 21 | #else |
ea0efc06 MB |
22 | # define pthread_mutexattr_default NULL |
23 | # define pthread_condattr_default NULL | |
11343788 | 24 | #endif /* OLD_PTHREADS_API */ |
d55594ae | 25 | #endif |
9731c6ca | 26 | #endif |
11343788 | 27 | |
940cb80d MB |
28 | #ifdef PTHREADS_CREATED_JOINABLE |
29 | # define ATTR_JOINABLE PTHREAD_CREATE_JOINABLE | |
30 | #else | |
31 | # ifdef PTHREAD_CREATE_UNDETACHED | |
32 | # define ATTR_JOINABLE PTHREAD_CREATE_UNDETACHED | |
33 | # else | |
34 | # define ATTR_JOINABLE PTHREAD_CREATE_JOINABLE | |
35 | # endif | |
36 | #endif | |
37 | ||
ea0efc06 | 38 | #ifndef YIELD |
6ee623d5 | 39 | # ifdef HAS_SCHED_YIELD |
52e1cb5e | 40 | # define YIELD sched_yield() |
6ee623d5 GS |
41 | # else |
42 | # ifdef HAS_PTHREAD_YIELD | |
43 | # define YIELD pthread_yield() | |
44 | # endif | |
52e1cb5e | 45 | # endif |
ea0efc06 MB |
46 | #endif |
47 | ||
48 | #ifndef MUTEX_INIT | |
49 | #define MUTEX_INIT(m) \ | |
50 | STMT_START { \ | |
51 | if (pthread_mutex_init((m), pthread_mutexattr_default)) \ | |
52 | croak("panic: MUTEX_INIT"); \ | |
53 | } STMT_END | |
54 | #define MUTEX_LOCK(m) \ | |
55 | STMT_START { \ | |
56 | if (pthread_mutex_lock((m))) \ | |
57 | croak("panic: MUTEX_LOCK"); \ | |
58 | } STMT_END | |
59 | #define MUTEX_UNLOCK(m) \ | |
60 | STMT_START { \ | |
61 | if (pthread_mutex_unlock((m))) \ | |
62 | croak("panic: MUTEX_UNLOCK"); \ | |
63 | } STMT_END | |
64 | #define MUTEX_DESTROY(m) \ | |
65 | STMT_START { \ | |
66 | if (pthread_mutex_destroy((m))) \ | |
67 | croak("panic: MUTEX_DESTROY"); \ | |
68 | } STMT_END | |
69 | #endif /* MUTEX_INIT */ | |
70 | ||
71 | #ifndef COND_INIT | |
72 | #define COND_INIT(c) \ | |
73 | STMT_START { \ | |
74 | if (pthread_cond_init((c), pthread_condattr_default)) \ | |
75 | croak("panic: COND_INIT"); \ | |
76 | } STMT_END | |
77 | #define COND_SIGNAL(c) \ | |
78 | STMT_START { \ | |
79 | if (pthread_cond_signal((c))) \ | |
80 | croak("panic: COND_SIGNAL"); \ | |
81 | } STMT_END | |
82 | #define COND_BROADCAST(c) \ | |
83 | STMT_START { \ | |
84 | if (pthread_cond_broadcast((c))) \ | |
85 | croak("panic: COND_BROADCAST"); \ | |
86 | } STMT_END | |
87 | #define COND_WAIT(c, m) \ | |
88 | STMT_START { \ | |
89 | if (pthread_cond_wait((c), (m))) \ | |
90 | croak("panic: COND_WAIT"); \ | |
91 | } STMT_END | |
92 | #define COND_DESTROY(c) \ | |
93 | STMT_START { \ | |
94 | if (pthread_cond_destroy((c))) \ | |
95 | croak("panic: COND_DESTROY"); \ | |
96 | } STMT_END | |
97 | #endif /* COND_INIT */ | |
33f46ff6 | 98 | |
f826a10b | 99 | /* DETACH(t) must only be called while holding t->mutex */ |
ea0efc06 MB |
100 | #ifndef DETACH |
101 | #define DETACH(t) \ | |
102 | STMT_START { \ | |
46930d8f | 103 | if (pthread_detach((t)->self)) { \ |
ea0efc06 MB |
104 | MUTEX_UNLOCK(&(t)->mutex); \ |
105 | croak("panic: DETACH"); \ | |
106 | } \ | |
107 | } STMT_END | |
108 | #endif /* DETACH */ | |
33f46ff6 | 109 | |
ea0efc06 MB |
110 | #ifndef JOIN |
111 | #define JOIN(t, avp) \ | |
112 | STMT_START { \ | |
46930d8f | 113 | if (pthread_join((t)->self, (void**)(avp))) \ |
ea0efc06 MB |
114 | croak("panic: pthread_join"); \ |
115 | } STMT_END | |
116 | #endif /* JOIN */ | |
117 | ||
118 | #ifndef SET_THR | |
119 | #define SET_THR(t) \ | |
120 | STMT_START { \ | |
121 | if (pthread_setspecific(thr_key, (void *) (t))) \ | |
122 | croak("panic: pthread_setspecific"); \ | |
123 | } STMT_END | |
124 | #endif /* SET_THR */ | |
125 | ||
126 | #ifndef THR | |
127 | # ifdef OLD_PTHREADS_API | |
52e1cb5e | 128 | struct perl_thread *getTHR _((void)); |
ea0efc06 MB |
129 | # define THR getTHR() |
130 | # else | |
52e1cb5e | 131 | # define THR ((struct perl_thread *) pthread_getspecific(thr_key)) |
ea0efc06 MB |
132 | # endif /* OLD_PTHREADS_API */ |
133 | #endif /* THR */ | |
134 | ||
940cb80d MB |
135 | /* |
136 | * dTHR is performance-critical. Here, we only do the pthread_get_specific | |
137 | * if there may be more than one thread in existence, otherwise we get thr | |
138 | * from thrsv which is cached in the per-interpreter structure. | |
139 | * Systems with very fast pthread_get_specific (which should be all systems | |
140 | * but unfortunately isn't) may wish to simplify to "...*thr = THR". | |
141 | */ | |
ea0efc06 | 142 | #ifndef dTHR |
940cb80d MB |
143 | # define dTHR \ |
144 | struct perl_thread *thr = threadnum? THR : (struct perl_thread*)SvPVX(thrsv) | |
ea0efc06 | 145 | #endif /* dTHR */ |
11343788 | 146 | |
33f46ff6 MB |
147 | #ifndef INIT_THREADS |
148 | # ifdef NEED_PTHREAD_INIT | |
149 | # define INIT_THREADS pthread_init() | |
150 | # else | |
151 | # define INIT_THREADS NOOP | |
152 | # endif | |
153 | #endif | |
11343788 | 154 | |
940cb80d MB |
155 | /* Accessor for per-thread SVs */ |
156 | #define THREADSV(i) (thr->threadsvp[i]) | |
157 | ||
158 | /* | |
159 | * LOCK_SV_MUTEX and UNLOCK_SV_MUTEX are performance-critical. Here, we | |
160 | * try only locking them if there may be more than one thread in existence. | |
161 | * Systems with very fast mutexes (and/or slow conditionals) may wish to | |
162 | * remove the "if (threadnum) ..." test. | |
163 | */ | |
164 | #define LOCK_SV_MUTEX \ | |
165 | STMT_START { \ | |
166 | if (threadnum) \ | |
167 | MUTEX_LOCK(&sv_mutex); \ | |
168 | } STMT_END | |
169 | ||
170 | #define UNLOCK_SV_MUTEX \ | |
171 | STMT_START { \ | |
172 | if (threadnum) \ | |
173 | MUTEX_UNLOCK(&sv_mutex); \ | |
174 | } STMT_END | |
d55594ae | 175 | |
ea0efc06 MB |
176 | #ifndef THREAD_RET_TYPE |
177 | # define THREAD_RET_TYPE void * | |
178 | # define THREAD_RET_CAST(p) ((void *)(p)) | |
179 | #endif /* THREAD_RET */ | |
180 | ||
11343788 | 181 | |
33f46ff6 | 182 | /* Values and macros for thr->flags */ |
605e5515 MB |
183 | #define THRf_STATE_MASK 7 |
184 | #define THRf_R_JOINABLE 0 | |
185 | #define THRf_R_JOINED 1 | |
186 | #define THRf_R_DETACHED 2 | |
187 | #define THRf_ZOMBIE 3 | |
188 | #define THRf_DEAD 4 | |
f93b4edd | 189 | |
458fb581 | 190 | #define THRf_DID_DIE 8 |
07b73707 | 191 | |
f826a10b | 192 | /* ThrSTATE(t) and ThrSETSTATE(t) must only be called while holding t->mutex */ |
458fb581 | 193 | #define ThrSTATE(t) ((t)->flags & THRf_STATE_MASK) |
f93b4edd | 194 | #define ThrSETSTATE(t, s) STMT_START { \ |
605e5515 | 195 | (t)->flags &= ~THRf_STATE_MASK; \ |
33f46ff6 | 196 | (t)->flags |= (s); \ |
605e5515 MB |
197 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), \ |
198 | "thread %p set to state %d\n", (t), (s))); \ | |
f93b4edd MB |
199 | } STMT_END |
200 | ||
201 | typedef struct condpair { | |
f826a10b MB |
202 | perl_mutex mutex; /* Protects all other fields */ |
203 | perl_cond owner_cond; /* For when owner changes at all */ | |
204 | perl_cond cond; /* For cond_signal and cond_broadcast */ | |
205 | Thread owner; /* Currently owning thread */ | |
f93b4edd MB |
206 | } condpair_t; |
207 | ||
208 | #define MgMUTEXP(mg) (&((condpair_t *)(mg->mg_ptr))->mutex) | |
209 | #define MgOWNERCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->owner_cond) | |
210 | #define MgCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->cond) | |
211 | #define MgOWNER(mg) ((condpair_t *)(mg->mg_ptr))->owner | |
212 | ||
ea0efc06 MB |
213 | #else |
214 | /* USE_THREADS is not defined */ | |
215 | #define MUTEX_LOCK(m) | |
216 | #define MUTEX_UNLOCK(m) | |
217 | #define MUTEX_INIT(m) | |
218 | #define MUTEX_DESTROY(m) | |
219 | #define COND_INIT(c) | |
220 | #define COND_SIGNAL(c) | |
221 | #define COND_BROADCAST(c) | |
222 | #define COND_WAIT(c, m) | |
223 | #define COND_DESTROY(c) | |
93bce2dc GS |
224 | #define LOCK_SV_MUTEX |
225 | #define UNLOCK_SV_MUTEX | |
ea0efc06 MB |
226 | |
227 | #define THR | |
228 | /* Rats: if dTHR is just blank then the subsequent ";" throws an error */ | |
76e3520e | 229 | #ifdef WIN32 |
e3b8966e | 230 | #define dTHR extern int Perl___notused |
76e3520e | 231 | #else |
ea0efc06 | 232 | #define dTHR extern int errno |
76e3520e | 233 | #endif |
11343788 | 234 | #endif /* USE_THREADS */ |