1 /* 2 * Copyright 2001-2011 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 <sched.h> 10 #include <stdint.h> 11 #include <sys/types.h> 12 #include <time.h> 13 14 15 #define PTHREAD_MUTEX_DEFAULT 0 16 #define PTHREAD_MUTEX_NORMAL 1 17 #define PTHREAD_MUTEX_ERRORCHECK 2 18 #define PTHREAD_MUTEX_RECURSIVE 3 19 20 #define PTHREAD_PROCESS_PRIVATE 0 21 #define PTHREAD_PROCESS_SHARED 1 22 23 /* 24 * Flags for threads and thread attributes. 25 */ 26 #define PTHREAD_DETACHED 0x1 27 #define PTHREAD_SCOPE_SYSTEM 0x2 28 #define PTHREAD_INHERIT_SCHED 0x4 29 #define PTHREAD_NOFLOAT 0x8 30 31 #define PTHREAD_CREATE_DETACHED PTHREAD_DETACHED 32 #define PTHREAD_CREATE_JOINABLE 0 33 #define PTHREAD_SCOPE_PROCESS 0 34 #define PTHREAD_EXPLICIT_SCHED 0 35 36 /* 37 * Flags for cancelling threads 38 */ 39 #define PTHREAD_CANCEL_ENABLE 0 40 #define PTHREAD_CANCEL_DISABLE 1 41 #define PTHREAD_CANCEL_DEFERRED 0 42 #define PTHREAD_CANCEL_ASYNCHRONOUS 2 43 #define PTHREAD_CANCELED ((void *) 1) 44 45 #define PTHREAD_ONCE_INIT { -1 } 46 47 #define PTHREAD_BARRIER_SERIAL_THREAD -1 48 #define PTHREAD_PRIO_NONE 0 49 #define PTHREAD_PRIO_INHERIT 1 50 #define PTHREAD_PRIO_PROTECT 2 51 52 /* private structure */ 53 struct __pthread_cleanup_handler { 54 struct __pthread_cleanup_handler *previous; 55 void (*function)(void *argument); 56 void *argument; 57 }; 58 59 #define pthread_cleanup_push(func, arg) \ 60 do { \ 61 struct __pthread_cleanup_handler __handler; \ 62 __handler.function = (func); \ 63 __handler.argument = (arg); \ 64 __pthread_cleanup_push_handler(&__handler); 65 66 #define pthread_cleanup_pop(execute) \ 67 if (execute) \ 68 __handler.function(__handler.argument); \ 69 __pthread_cleanup_pop_handler(); \ 70 } while (0) 71 72 73 #ifdef __cplusplus 74 extern "C" { 75 #endif 76 77 #define PTHREAD_MUTEX_INITIALIZER \ 78 { PTHREAD_MUTEX_DEFAULT, 0, -42, -1, 0 } 79 #define PTHREAD_RECURSIVE_MUTEX_INITIALIZER \ 80 { PTHREAD_MUTEX_RECURSIVE, 0, -42, -1, 0 } 81 #define PTHREAD_COND_INITIALIZER \ 82 { 0, -42, NULL, 0, 0 } 83 #define PTHREAD_RWLOCK_INITIALIZER \ 84 { 0, -1, {{0}} } 85 86 /* mutex functions */ 87 extern int pthread_mutex_destroy(pthread_mutex_t *mutex); 88 extern int pthread_mutex_getprioceiling(const pthread_mutex_t *mutex, 89 int *_priorityCeiling); 90 extern int pthread_mutex_init(pthread_mutex_t *mutex, 91 const pthread_mutexattr_t *attr); 92 extern int pthread_mutex_lock(pthread_mutex_t *mutex); 93 extern int pthread_mutex_setprioceiling(pthread_mutex_t *mutex, 94 int newPriorityCeiling, int *_oldPriorityCeiling); 95 extern int pthread_mutex_timedlock(pthread_mutex_t *mutex, 96 const struct timespec *spec); 97 extern int pthread_mutex_trylock(pthread_mutex_t *mutex); 98 extern int pthread_mutex_unlock(pthread_mutex_t *mutex); 99 100 /* mutex attribute functions */ 101 extern int pthread_mutexattr_destroy(pthread_mutexattr_t *mutexAttr); 102 extern int pthread_mutexattr_getprioceiling(const pthread_mutexattr_t *mutexAttr, 103 int *_priorityCeiling); 104 extern int pthread_mutexattr_getprotocol(const pthread_mutexattr_t *mutexAttr, 105 int *_protocol); 106 extern int pthread_mutexattr_getpshared(const pthread_mutexattr_t *mutexAttr, 107 int *_processShared); 108 extern int pthread_mutexattr_gettype(const pthread_mutexattr_t *mutexAttr, 109 int *_type); 110 extern int pthread_mutexattr_init(pthread_mutexattr_t *mutexAttr); 111 extern int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mutexAttr, 112 int priorityCeiling); 113 extern int pthread_mutexattr_setprotocol(pthread_mutexattr_t *mutexAttr, 114 int protocol); 115 extern int pthread_mutexattr_setpshared(pthread_mutexattr_t *mutexAttr, 116 int processShared); 117 extern int pthread_mutexattr_settype(pthread_mutexattr_t *mutexAttr, int type); 118 119 /* barrier functions */ 120 extern int pthread_barrier_init(pthread_barrier_t *barrier, 121 const pthread_barrierattr_t *attr, unsigned count); 122 extern int pthread_barrier_destroy(pthread_barrier_t *barrier); 123 extern int pthread_barrier_wait(pthread_barrier_t *barrier); 124 125 /* barrier attribute functions */ 126 extern int pthread_barrierattr_destroy(pthread_barrierattr_t *attr); 127 extern int pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr, 128 int *shared); 129 extern int pthread_barrierattr_init(pthread_barrierattr_t *attr); 130 extern int pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, 131 int shared); 132 133 /* condition variable functions */ 134 extern int pthread_cond_destroy(pthread_cond_t *cond); 135 extern int pthread_cond_init(pthread_cond_t *cond, 136 const pthread_condattr_t *attr); 137 extern int pthread_cond_broadcast(pthread_cond_t *cond); 138 extern int pthread_cond_signal(pthread_cond_t *cond); 139 extern int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, 140 const struct timespec *abstime); 141 extern int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex); 142 143 /* condition variable attribute functions */ 144 extern int pthread_condattr_destroy(pthread_condattr_t *condAttr); 145 extern int pthread_condattr_init(pthread_condattr_t *condAttr); 146 extern int pthread_condattr_getpshared(const pthread_condattr_t *condAttr, 147 int *processShared); 148 extern int pthread_condattr_setpshared(pthread_condattr_t *condAttr, 149 int processShared); 150 extern int pthread_condattr_getclock(const pthread_condattr_t *condAttr, 151 clockid_t *clockID); 152 extern int pthread_condattr_setclock(pthread_condattr_t *condAttr, 153 clockid_t clockID); 154 155 /* rwlock functions */ 156 extern int pthread_rwlock_init(pthread_rwlock_t *lock, 157 const pthread_rwlockattr_t *attr); 158 extern int pthread_rwlock_destroy(pthread_rwlock_t *lock); 159 extern int pthread_rwlock_rdlock(pthread_rwlock_t *lock); 160 extern int pthread_rwlock_tryrdlock(pthread_rwlock_t *lock); 161 extern int pthread_rwlock_timedrdlock(pthread_rwlock_t *lock, 162 const struct timespec *timeout); 163 extern int pthread_rwlock_wrlock(pthread_rwlock_t *lock); 164 extern int pthread_rwlock_trywrlock(pthread_rwlock_t *lock); 165 extern int pthread_rwlock_timedwrlock(pthread_rwlock_t *lock, 166 const struct timespec *timeout); 167 extern int pthread_rwlock_unlock(pthread_rwlock_t *lock); 168 169 /* rwlock attribute functions */ 170 extern int pthread_rwlockattr_init(pthread_rwlockattr_t *attr); 171 extern int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr); 172 extern int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *attr, 173 int *shared); 174 extern int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attr, 175 int shared); 176 177 /* spinlock functions */ 178 extern int pthread_spin_init(pthread_spinlock_t* spinlock, int pshared); 179 extern int pthread_spin_destroy(pthread_spinlock_t* spinlock); 180 extern int pthread_spin_lock(pthread_spinlock_t* spinlock); 181 extern int pthread_spin_trylock(pthread_spinlock_t* spinlock); 182 extern int pthread_spin_unlock(pthread_spinlock_t* spinlock); 183 184 /* misc. functions */ 185 extern int pthread_atfork(void (*prepare)(void), void (*parent)(void), 186 void (*child)(void)); 187 extern int pthread_once(pthread_once_t *once_control, 188 void (*init_routine)(void)); 189 190 /* thread attributes functions */ 191 extern int pthread_attr_destroy(pthread_attr_t *attr); 192 extern int pthread_attr_init(pthread_attr_t *attr); 193 extern int pthread_attr_getdetachstate(const pthread_attr_t *attr, 194 int *detachstate); 195 extern int pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate); 196 extern int pthread_attr_getstacksize(const pthread_attr_t *attr, 197 size_t *stacksize); 198 extern int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize); 199 extern int pthread_attr_getscope(const pthread_attr_t *attr, 200 int *contentionScope); 201 extern int pthread_attr_setscope(pthread_attr_t *attr, int contentionScope); 202 203 extern int pthread_attr_getschedparam(const pthread_attr_t *attr, 204 struct sched_param *param); 205 extern int pthread_attr_setschedparam(pthread_attr_t *attr, 206 const struct sched_param *param); 207 208 extern int pthread_attr_getguardsize(const pthread_attr_t *attr, 209 size_t *guardsize); 210 extern int pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize); 211 212 #if 0 /* Unimplemented attribute functions: */ 213 214 /* [TPS] */ 215 extern int pthread_attr_getinheritsched(const pthread_attr_t *attr, 216 int *inheritsched); 217 extern int pthread_attr_setinheritsched(pthread_attr_t *attr, int inheritsched); 218 219 extern int pthread_attr_getschedpolicy(const pthread_attr_t *attr, 220 int *policy); 221 extern int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy); 222 223 /* [TSA] */ 224 extern int pthread_attr_getstackaddr(const pthread_attr_t *attr, 225 void **stackaddr); 226 extern int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr); 227 228 /* [TSA TSS] */ 229 extern int pthread_attr_getstack(const pthread_attr_t *attr, 230 void **stackaddr, size_t *stacksize); 231 extern int pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr, size_t stacksize); 232 233 #endif /* 0 */ 234 235 236 /* thread functions */ 237 extern int pthread_create(pthread_t *thread, const pthread_attr_t *attr, 238 void *(*start_routine)(void*), void *arg); 239 extern int pthread_detach(pthread_t thread); 240 extern int pthread_equal(pthread_t t1, pthread_t t2); 241 extern void pthread_exit(void *value_ptr) __attribute__ ((noreturn)); 242 extern int pthread_join(pthread_t thread, void **_value); 243 extern pthread_t pthread_self(void); 244 extern int pthread_getconcurrency(void); 245 extern int pthread_setconcurrency(int newLevel); 246 247 extern int pthread_cancel(pthread_t thread); 248 extern int pthread_setcancelstate(int state, int *_oldState); 249 extern int pthread_setcanceltype(int type, int *_oldType); 250 extern void pthread_testcancel(void); 251 252 extern int pthread_getschedparam(pthread_t thread, int *policy, 253 struct sched_param *param); 254 extern int pthread_setschedparam(pthread_t thread, int policy, 255 const struct sched_param *param); 256 257 /* thread specific data functions */ 258 extern int pthread_key_create(pthread_key_t *key, 259 void (*destructorFunc)(void*)); 260 extern int pthread_key_delete(pthread_key_t key); 261 extern void *pthread_getspecific(pthread_key_t key); 262 extern int pthread_setspecific(pthread_key_t key, const void *value); 263 264 /* private functions */ 265 extern void __pthread_cleanup_push_handler( 266 struct __pthread_cleanup_handler *handler); 267 extern struct __pthread_cleanup_handler *__pthread_cleanup_pop_handler(void); 268 269 #ifdef __cplusplus 270 } 271 #endif 272 273 #endif /* _PTHREAD_ */ 274