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 <sched.h> 10 #include <stdint.h> 11 #include <time.h> 12 13 14 typedef struct _pthread_thread *pthread_t; 15 typedef struct _pthread_attr *pthread_attr_t; 16 typedef struct _pthread_mutex pthread_mutex_t; 17 typedef struct _pthread_mutexattr *pthread_mutexattr_t; 18 typedef struct _pthread_cond pthread_cond_t; 19 typedef struct _pthread_condattr *pthread_condattr_t; 20 typedef int pthread_key_t; 21 typedef struct _pthread_once pthread_once_t; 22 typedef struct _pthread_rwlock pthread_rwlock_t; 23 typedef struct _pthread_rwlockattr *pthread_rwlockattr_t; 24 typedef struct _pthread_spinlock pthread_spinlock_t; 25 /* 26 typedef struct _pthread_barrier *pthread_barrier_t; 27 typedef struct _pthread_barrierattr *pthread_barrierattr_t; 28 */ 29 30 struct _pthread_mutex { 31 uint32_t flags; 32 int32_t lock; 33 int32_t unused; 34 int32_t owner; 35 int32_t owner_count; 36 }; 37 38 struct _pthread_cond { 39 uint32_t flags; 40 int32_t unused; 41 pthread_mutex_t *mutex; 42 int32_t waiter_count; 43 int32_t lock; 44 }; 45 46 struct _pthread_once { 47 int32_t state; 48 }; 49 50 struct _pthread_rwlock { 51 uint32_t flags; 52 int32_t owner; 53 union { 54 struct { 55 int32_t sem; 56 } shared; 57 struct { 58 int32_t lock_sem; 59 int32_t lock_count; 60 int32_t reader_count; 61 int32_t writer_count; 62 void* waiters[2]; 63 } local; 64 }; 65 }; 66 67 struct _pthread_spinlock { 68 int32_t lock; 69 }; 70 71 #define PTHREAD_MUTEX_DEFAULT 0 72 #define PTHREAD_MUTEX_NORMAL 1 73 #define PTHREAD_MUTEX_ERRORCHECK 2 74 #define PTHREAD_MUTEX_RECURSIVE 3 75 76 #define PTHREAD_PROCESS_PRIVATE 0 77 #define PTHREAD_PROCESS_SHARED 1 78 79 /* 80 * Flags for threads and thread attributes. 81 */ 82 #define PTHREAD_DETACHED 0x1 83 #define PTHREAD_SCOPE_SYSTEM 0x2 84 #define PTHREAD_INHERIT_SCHED 0x4 85 #define PTHREAD_NOFLOAT 0x8 86 87 #define PTHREAD_CREATE_DETACHED PTHREAD_DETACHED 88 #define PTHREAD_CREATE_JOINABLE 0 89 #define PTHREAD_SCOPE_PROCESS 0 90 #define PTHREAD_EXPLICIT_SCHED 0 91 92 /* 93 * Flags for cancelling threads 94 */ 95 #define PTHREAD_CANCEL_ENABLE 0 96 #define PTHREAD_CANCEL_DISABLE 1 97 #define PTHREAD_CANCEL_DEFERRED 0 98 #define PTHREAD_CANCEL_ASYNCHRONOUS 2 99 #define PTHREAD_CANCELED ((void *) 1) 100 101 #define PTHREAD_ONCE_INIT { -1 } 102 103 #define PTHREAD_BARRIER_SERIAL_THREAD -1 104 #define PTHREAD_PRIO_NONE 0 105 #define PTHREAD_PRIO_INHERIT 1 106 #define PTHREAD_PRIO_PROTECT 2 107 108 /* private structure */ 109 struct __pthread_cleanup_handler { 110 struct __pthread_cleanup_handler *previous; 111 void (*function)(void *argument); 112 void *argument; 113 }; 114 115 #define pthread_cleanup_push(func, arg) \ 116 do { \ 117 struct __pthread_cleanup_handler __handler; \ 118 __handler.function = (func); \ 119 __handler.argument = (arg); \ 120 __pthread_cleanup_push_handler(&__handler); 121 122 #define pthread_cleanup_pop(execute) \ 123 if (execute) \ 124 __handler.function(__handler.argument); \ 125 __pthread_cleanup_pop_handler(); \ 126 } while (0) 127 128 129 #ifdef __cplusplus 130 extern "C" { 131 #endif 132 133 #define PTHREAD_MUTEX_INITIALIZER \ 134 { PTHREAD_MUTEX_DEFAULT, 0, -42, -1, 0 } 135 #define PTHREAD_RECURSIVE_MUTEX_INITIALIZER \ 136 { PTHREAD_MUTEX_RECURSIVE, 0, -42, -1, 0 } 137 #define PTHREAD_COND_INITIALIZER \ 138 { 0, -42, NULL, 0, 0 } 139 140 /* mutex functions */ 141 extern int pthread_mutex_destroy(pthread_mutex_t *mutex); 142 extern int pthread_mutex_getprioceiling(pthread_mutex_t *mutex, 143 int *_priorityCeiling); 144 extern int pthread_mutex_init(pthread_mutex_t *mutex, 145 const pthread_mutexattr_t *attr); 146 extern int pthread_mutex_lock(pthread_mutex_t *mutex); 147 extern int pthread_mutex_setprioceiling(pthread_mutex_t *mutex, 148 int newPriorityCeiling, int *_oldPriorityCeiling); 149 extern int pthread_mutex_timedlock(pthread_mutex_t *mutex, 150 const struct timespec *spec); 151 extern int pthread_mutex_trylock(pthread_mutex_t *mutex); 152 extern int pthread_mutex_unlock(pthread_mutex_t *mutex); 153 154 /* mutex attribute functions */ 155 extern int pthread_mutexattr_destroy(pthread_mutexattr_t *mutexAttr); 156 extern int pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mutexAttr, 157 int *_priorityCeiling); 158 extern int pthread_mutexattr_getprotocol(pthread_mutexattr_t *mutexAttr, 159 int *_protocol); 160 extern int pthread_mutexattr_getpshared(pthread_mutexattr_t *mutexAttr, 161 int *_processShared); 162 extern int pthread_mutexattr_gettype(pthread_mutexattr_t *mutexAttr, 163 int *_type); 164 extern int pthread_mutexattr_init(pthread_mutexattr_t *mutexAttr); 165 extern int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mutexAttr, 166 int priorityCeiling); 167 extern int pthread_mutexattr_setprotocol(pthread_mutexattr_t *mutexAttr, 168 int protocol); 169 extern int pthread_mutexattr_setpshared(pthread_mutexattr_t *mutexAttr, 170 int processShared); 171 extern int pthread_mutexattr_settype(pthread_mutexattr_t *mutexAttr, int type); 172 173 /* condition variable functions */ 174 extern int pthread_cond_destroy(pthread_cond_t *cond); 175 extern int pthread_cond_init(pthread_cond_t *cond, 176 const pthread_condattr_t *attr); 177 extern int pthread_cond_broadcast(pthread_cond_t *cond); 178 extern int pthread_cond_signal(pthread_cond_t *cond); 179 extern int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, 180 const struct timespec *abstime); 181 extern int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex); 182 183 /* condition variable attribute functions */ 184 extern int pthread_condattr_destroy(pthread_condattr_t *condAttr); 185 extern int pthread_condattr_init(pthread_condattr_t *condAttr); 186 extern int pthread_condattr_getpshared(const pthread_condattr_t *condAttr, 187 int *processShared); 188 extern int pthread_condattr_setpshared(pthread_condattr_t *condAttr, 189 int processShared); 190 191 /* rwlock functions */ 192 extern int pthread_rwlock_init(pthread_rwlock_t *lock, 193 const pthread_rwlockattr_t *attr); 194 extern int pthread_rwlock_destroy(pthread_rwlock_t *lock); 195 extern int pthread_rwlock_rdlock(pthread_rwlock_t *lock); 196 extern int pthread_rwlock_tryrdlock(pthread_rwlock_t *lock); 197 extern int pthread_rwlock_timedrdlock(pthread_rwlock_t *lock, 198 const struct timespec *timeout); 199 extern int pthread_rwlock_wrlock(pthread_rwlock_t *lock); 200 extern int pthread_rwlock_trywrlock(pthread_rwlock_t *lock); 201 extern int pthread_rwlock_timedwrlock(pthread_rwlock_t *lock, 202 const struct timespec *timeout); 203 extern int pthread_rwlock_unlock(pthread_rwlock_t *lock); 204 205 /* rwlock attribute functions */ 206 extern int pthread_rwlockattr_init(pthread_rwlockattr_t *attr); 207 extern int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr); 208 extern int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *attr, 209 int *shared); 210 extern int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attr, 211 int shared); 212 213 /* spinlock functions */ 214 extern int pthread_spin_init(pthread_spinlock_t* spinlock, int pshared); 215 extern int pthread_spin_destroy(pthread_spinlock_t* spinlock); 216 extern int pthread_spin_lock(pthread_spinlock_t* spinlock); 217 extern int pthread_spin_trylock(pthread_spinlock_t* spinlock); 218 extern int pthread_spin_unlock(pthread_spinlock_t* spinlock); 219 220 /* misc. functions */ 221 extern int pthread_atfork(void (*prepare)(void), void (*parent)(void), 222 void (*child)(void)); 223 extern int pthread_once(pthread_once_t *once_control, 224 void (*init_routine)(void)); 225 226 /* thread attributes functions */ 227 extern int pthread_attr_destroy(pthread_attr_t *attr); 228 extern int pthread_attr_init(pthread_attr_t *attr); 229 extern int pthread_attr_getdetachstate(const pthread_attr_t *attr, 230 int *detachstate); 231 extern int pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate); 232 extern int pthread_attr_getstacksize(const pthread_attr_t *attr, 233 size_t *stacksize); 234 extern int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize); 235 extern int pthread_attr_getscope(const pthread_attr_t *attr, 236 int *contentionScope); 237 extern int pthread_attr_setscope(pthread_attr_t *attr, int contentionScope); 238 239 extern int pthread_attr_getschedparam(const pthread_attr_t *attr, 240 struct sched_param *param); 241 extern int pthread_attr_setschedparam(pthread_attr_t *attr, 242 const struct sched_param *param); 243 244 #if 0 /* Unimplemented attribute functions: */ 245 246 /* [TPS] */ 247 extern int pthread_attr_getinheritsched(const pthread_attr_t *attr, 248 int *inheritsched); 249 extern int pthread_attr_setinheritsched(pthread_attr_t *attr, int inheritsched); 250 251 extern int pthread_attr_getschedpolicy(const pthread_attr_t *attr, 252 int *policy); 253 extern int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy); 254 255 /* [XSI] */ 256 extern int pthread_attr_getguardsize(const pthread_attr_t *attr, 257 size_t *guardsize); 258 extern int pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize); 259 260 /* [TSA] */ 261 extern int pthread_attr_getstackaddr(const pthread_attr_t *attr, 262 void **stackaddr); 263 extern int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr); 264 265 /* [TSA TSS] */ 266 extern int pthread_attr_getstack(const pthread_attr_t *attr, 267 void **stackaddr, size_t *stacksize); 268 extern int pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr, size_t stacksize); 269 270 #endif /* 0 */ 271 272 273 /* thread functions */ 274 extern int pthread_create(pthread_t *thread, const pthread_attr_t *attr, 275 void *(*start_routine)(void*), void *arg); 276 extern int pthread_detach(pthread_t thread); 277 extern int pthread_equal(pthread_t t1, pthread_t t2); 278 extern void pthread_exit(void *value_ptr); 279 extern int pthread_join(pthread_t thread, void **_value); 280 extern pthread_t pthread_self(void); 281 extern int pthread_kill(pthread_t thread, int sig); 282 extern int pthread_getconcurrency(void); 283 extern int pthread_setconcurrency(int newLevel); 284 285 extern int pthread_cancel(pthread_t thread); 286 extern int pthread_setcancelstate(int state, int *_oldState); 287 extern int pthread_setcanceltype(int type, int *_oldType); 288 extern void pthread_testcancel(void); 289 290 extern int pthread_getschedparam(pthread_t thread, int *policy, 291 struct sched_param *param); 292 extern int pthread_setschedparam(pthread_t thread, int policy, 293 const struct sched_param *param); 294 295 /* thread specific data functions */ 296 extern int pthread_key_create(pthread_key_t *key, 297 void (*destructorFunc)(void*)); 298 extern int pthread_key_delete(pthread_key_t key); 299 extern void *pthread_getspecific(pthread_key_t key); 300 extern int pthread_setspecific(pthread_key_t key, const void *value); 301 302 /* private functions */ 303 extern void __pthread_cleanup_push_handler( 304 struct __pthread_cleanup_handler *handler); 305 extern struct __pthread_cleanup_handler *__pthread_cleanup_pop_handler(void); 306 307 #ifdef __cplusplus 308 } 309 #endif 310 311 #endif /* _PTHREAD_ */ 312