1 /* 2 * Copyright 2001-2008, Haiku Inc. All Rights Reserved. 3 * Distributed under the terms of the Haiku License. 4 */ 5 #ifndef _PTHREAD_H_ 6 #define _PTHREAD_H_ 7 8 9 #include <stdint.h> 10 #include <time.h> 11 12 13 typedef struct _pthread_thread *pthread_t; 14 typedef struct _pthread_attr *pthread_attr_t; 15 typedef struct _pthread_mutex pthread_mutex_t; 16 typedef struct _pthread_mutexattr *pthread_mutexattr_t; 17 typedef struct _pthread_cond pthread_cond_t; 18 typedef struct _pthread_condattr *pthread_condattr_t; 19 typedef int pthread_key_t; 20 typedef struct _pthread_once pthread_once_t; 21 typedef struct _pthread_rwlock pthread_rwlock_t; 22 typedef struct _pthread_rwlockattr *pthread_rwlockattr_t; 23 /* 24 typedef struct _pthread_barrier *pthread_barrier_t; 25 typedef struct _pthread_barrierattr *pthread_barrierattr_t; 26 typedef struct _pthread_spinlock *pthread_spinlock_t; 27 */ 28 29 struct _pthread_mutex { 30 uint32_t flags; 31 int32_t count; 32 int32_t sem; 33 int32_t owner; 34 int32_t owner_count; 35 }; 36 37 struct _pthread_cond { 38 uint32_t flags; 39 int32_t sem; 40 pthread_mutex_t *mutex; 41 int32_t waiter_count; 42 int32_t event_counter; 43 }; 44 45 struct _pthread_once { 46 int32_t state; 47 }; 48 49 struct _pthread_rwlock { 50 uint32_t flags; 51 int32_t owner; 52 union { 53 struct { 54 int32_t sem; 55 } shared; 56 struct { 57 int32_t lock_sem; 58 int32_t lock_count; 59 int32_t reader_count; 60 int32_t writer_count; 61 void* waiters[2]; 62 } local; 63 }; 64 }; 65 66 enum pthread_mutex_type { 67 PTHREAD_MUTEX_DEFAULT, 68 PTHREAD_MUTEX_NORMAL, 69 PTHREAD_MUTEX_ERRORCHECK, 70 PTHREAD_MUTEX_RECURSIVE 71 }; 72 73 enum pthread_process_shared { 74 PTHREAD_PROCESS_PRIVATE, 75 PTHREAD_PROCESS_SHARED 76 }; 77 78 /* 79 * Flags for threads and thread attributes. 80 */ 81 #define PTHREAD_DETACHED 0x1 82 #define PTHREAD_SCOPE_SYSTEM 0x2 83 #define PTHREAD_INHERIT_SCHED 0x4 84 #define PTHREAD_NOFLOAT 0x8 85 86 #define PTHREAD_CREATE_DETACHED PTHREAD_DETACHED 87 #define PTHREAD_CREATE_JOINABLE 0 88 #define PTHREAD_SCOPE_PROCESS 0 89 #define PTHREAD_EXPLICIT_SCHED 0 90 91 /* 92 * Flags for cancelling threads 93 */ 94 #define PTHREAD_CANCEL_ENABLE 0 95 #define PTHREAD_CANCEL_DISABLE 1 96 #define PTHREAD_CANCEL_DEFERRED 0 97 #define PTHREAD_CANCEL_ASYNCHRONOUS 2 98 #define PTHREAD_CANCELED ((void *) 1) 99 100 #define PTHREAD_ONCE_INIT { -1 } 101 102 #define PTHREAD_BARRIER_SERIAL_THREAD -1 103 #define PTHREAD_PRIO_NONE 0 104 #define PTHREAD_PRIO_INHERIT 1 105 #define PTHREAD_PRIO_PROTECT 2 106 107 /* private structure */ 108 struct __pthread_cleanup_handler { 109 struct __pthread_cleanup_handler *previous; 110 void (*function)(void *argument); 111 void *argument; 112 }; 113 114 #define pthread_cleanup_push(func, arg) \ 115 do { \ 116 struct __pthread_cleanup_handler __handler; \ 117 __handler.function = (func); \ 118 __handler.argument = (arg); \ 119 __pthread_cleanup_push_handler(&__handler); 120 121 #define pthread_cleanup_pop(execute) \ 122 if (execute) \ 123 __handler.function(__handler.argument); \ 124 __pthread_cleanup_pop_handler(); \ 125 } while (0) 126 127 128 #ifdef __cplusplus 129 extern "C" { 130 #endif 131 132 #define PTHREAD_MUTEX_INITIALIZER \ 133 { PTHREAD_MUTEX_DEFAULT, 0, -42, -1, 0 } 134 #define PTHREAD_RECURSIVE_MUTEX_INITIALIZER \ 135 { PTHREAD_MUTEX_RECURSIVE, 0, -42, -1, 0 } 136 #define PTHREAD_COND_INITIALIZER \ 137 { 0, -42, NULL, 0, 0 } 138 139 /* mutex functions */ 140 extern int pthread_mutex_destroy(pthread_mutex_t *mutex); 141 extern int pthread_mutex_getprioceiling(pthread_mutex_t *mutex, 142 int *_priorityCeiling); 143 extern int pthread_mutex_init(pthread_mutex_t *mutex, 144 const pthread_mutexattr_t *attr); 145 extern int pthread_mutex_lock(pthread_mutex_t *mutex); 146 extern int pthread_mutex_setprioceiling(pthread_mutex_t *mutex, 147 int newPriorityCeiling, int *_oldPriorityCeiling); 148 extern int pthread_mutex_timedlock(pthread_mutex_t *mutex, 149 const struct timespec *spec); 150 extern int pthread_mutex_trylock(pthread_mutex_t *mutex); 151 extern int pthread_mutex_unlock(pthread_mutex_t *mutex); 152 153 /* mutex attribute functions */ 154 extern int pthread_mutexattr_destroy(pthread_mutexattr_t *mutexAttr); 155 extern int pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mutexAttr, 156 int *_priorityCeiling); 157 extern int pthread_mutexattr_getprotocol(pthread_mutexattr_t *mutexAttr, 158 int *_protocol); 159 extern int pthread_mutexattr_getpshared(pthread_mutexattr_t *mutexAttr, 160 int *_processShared); 161 extern int pthread_mutexattr_gettype(pthread_mutexattr_t *mutexAttr, 162 int *_type); 163 extern int pthread_mutexattr_init(pthread_mutexattr_t *mutexAttr); 164 extern int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mutexAttr, 165 int priorityCeiling); 166 extern int pthread_mutexattr_setprotocol(pthread_mutexattr_t *mutexAttr, 167 int protocol); 168 extern int pthread_mutexattr_setpshared(pthread_mutexattr_t *mutexAttr, 169 int processShared); 170 extern int pthread_mutexattr_settype(pthread_mutexattr_t *mutexAttr, int type); 171 172 /* condition variable functions */ 173 extern int pthread_cond_destroy(pthread_cond_t *cond); 174 extern int pthread_cond_init(pthread_cond_t *cond, 175 const pthread_condattr_t *attr); 176 extern int pthread_cond_broadcast(pthread_cond_t *cond); 177 extern int pthread_cond_signal(pthread_cond_t *cond); 178 extern int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, 179 const struct timespec *abstime); 180 extern int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex); 181 182 /* condition variable attribute functions */ 183 extern int pthread_condattr_destroy(pthread_condattr_t *condAttr); 184 extern int pthread_condattr_init(pthread_condattr_t *condAttr); 185 extern int pthread_condattr_getpshared(const pthread_condattr_t *condAttr, 186 int *processShared); 187 extern int pthread_condattr_setpshared(pthread_condattr_t *condAttr, 188 int processShared); 189 190 /* rwlock functions */ 191 extern int pthread_rwlock_init(pthread_rwlock_t *lock, 192 const pthread_rwlockattr_t *attr); 193 extern int pthread_rwlock_destroy(pthread_rwlock_t *lock); 194 extern int pthread_rwlock_rdlock(pthread_rwlock_t *lock); 195 extern int pthread_rwlock_tryrdlock(pthread_rwlock_t *lock); 196 extern int pthread_rwlock_timedrdlock(pthread_rwlock_t *lock, 197 const struct timespec *timeout); 198 extern int pthread_rwlock_wrlock(pthread_rwlock_t *lock); 199 extern int pthread_rwlock_trywrlock(pthread_rwlock_t *lock); 200 extern int pthread_rwlock_timedwrlock(pthread_rwlock_t *lock, 201 const struct timespec *timeout); 202 extern int pthread_rwlock_unlock(pthread_rwlock_t *lock); 203 204 /* rwlock attribute functions */ 205 extern int pthread_rwlockattr_init(pthread_rwlockattr_t *attr); 206 extern int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr); 207 extern int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *attr, 208 int *shared); 209 extern int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attr, 210 int shared); 211 212 /* misc. functions */ 213 extern int pthread_atfork(void (*prepare)(void), void (*parent)(void), 214 void (*child)(void)); 215 extern int pthread_once(pthread_once_t *once_control, 216 void (*init_routine)(void)); 217 218 /* thread attributes functions */ 219 extern int pthread_attr_destroy(pthread_attr_t *attr); 220 extern int pthread_attr_init(pthread_attr_t *attr); 221 extern int pthread_attr_getdetachstate(const pthread_attr_t *attr, 222 int *detachstate); 223 extern int pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate); 224 extern int pthread_attr_getstacksize(const pthread_attr_t *attr, 225 size_t *stacksize); 226 extern int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize); 227 extern int pthread_attr_getscope(const pthread_attr_t *attr, 228 int *contentionScope); 229 extern int pthread_attr_setscope(pthread_attr_t *attr, int contentionScope); 230 231 #if 0 /* Unimplemented attribute functions: */ 232 233 /* mandatory! */ 234 extern int pthread_attr_getschedparam(const pthread_attr_t *attr, 235 struct sched_param *param); 236 extern int pthread_attr_setschedparam(pthread_attr_t *attr, 237 const struct sched_param *param); 238 239 /* [TPS] */ 240 extern int pthread_attr_getinheritsched(const pthread_attr_t *attr, 241 int *inheritsched); 242 extern int pthread_attr_setinheritsched(pthread_attr_t *attr, int inheritsched); 243 244 extern int pthread_attr_getschedpolicy(const pthread_attr_t *attr, 245 int *policy); 246 extern int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy); 247 248 /* [XSI] */ 249 extern int pthread_attr_getguardsize(const pthread_attr_t *attr, 250 size_t *guardsize); 251 extern int pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize); 252 253 /* [TSA] */ 254 extern int pthread_attr_getstackaddr(const pthread_attr_t *attr, 255 void **stackaddr); 256 extern int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr); 257 258 /* [TSA TSS] */ 259 extern int pthread_attr_getstack(const pthread_attr_t *attr, 260 void **stackaddr, size_t *stacksize); 261 extern int pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr, size_t stacksize); 262 263 #endif /* 0 */ 264 265 266 /* thread functions */ 267 extern int pthread_create(pthread_t *thread, const pthread_attr_t *attr, 268 void *(*start_routine)(void*), void *arg); 269 extern int pthread_detach(pthread_t thread); 270 extern int pthread_equal(pthread_t t1, pthread_t t2); 271 extern void pthread_exit(void *value_ptr); 272 extern int pthread_join(pthread_t thread, void **_value); 273 extern pthread_t pthread_self(void); 274 extern int pthread_kill(pthread_t thread, int sig); 275 extern int pthread_getconcurrency(void); 276 extern int pthread_setconcurrency(int newLevel); 277 278 extern int pthread_cancel(pthread_t thread); 279 extern int pthread_setcancelstate(int state, int *_oldState); 280 extern int pthread_setcanceltype(int type, int *_oldType); 281 extern void pthread_testcancel(void); 282 283 /* thread specific data functions */ 284 extern int pthread_key_create(pthread_key_t *key, 285 void (*destructorFunc)(void*)); 286 extern int pthread_key_delete(pthread_key_t key); 287 extern void *pthread_getspecific(pthread_key_t key); 288 extern int pthread_setspecific(pthread_key_t key, const void *value); 289 290 /* private functions */ 291 extern void __pthread_cleanup_push_handler( 292 struct __pthread_cleanup_handler *handler); 293 extern struct __pthread_cleanup_handler *__pthread_cleanup_pop_handler(void); 294 295 #ifdef __cplusplus 296 } 297 #endif 298 299 #endif /* _PTHREAD_ */ 300