26#if !LELY_NO_THREADS && LELY_HAVE_PTHREAD_H
29#error This file requires errno.
36#include <processthreadsapi.h>
40#if _POSIX_C_SOURCE >= 200112L && defined(_POSIX_PRIORITY_SCHEDULING)
41#define LELY_HAVE_SCHED 1
46call_once(once_flag *flag,
void (*func)(
void))
48 pthread_once(flag, func);
54 int errsv = pthread_cond_broadcast(cond);
65 pthread_cond_destroy(cond);
71 int errsv = pthread_cond_init(cond, NULL);
82 int errsv = pthread_cond_signal(cond);
93 int errsv = pthread_cond_timedwait(cond, mtx, ts);
104 int errsv = pthread_cond_wait(cond, mtx);
115 pthread_mutex_destroy(mtx);
122 pthread_mutexattr_t attr;
124 errsv = pthread_mutexattr_init(&attr);
126 goto error_mutexattr_init;
128 errsv = pthread_mutexattr_settype(&attr, (type &
mtx_recursive)
129 ? PTHREAD_MUTEX_RECURSIVE
130 : PTHREAD_MUTEX_NORMAL);
133 goto error_mutexattr_settype;
134 errsv = pthread_mutex_init(mtx, &attr);
136 goto error_mutex_init;
137 pthread_mutexattr_destroy(&attr);
142error_mutexattr_settype:
143 pthread_mutexattr_destroy(&attr);
152 int errsv = pthread_mutex_lock(mtx);
163 int errsv = pthread_mutex_timedlock(mtx, ts);
174 int errsv = pthread_mutex_trylock(mtx);
185 int errsv = pthread_mutex_unlock(mtx);
197#pragma GCC diagnostic push
198#pragma GCC diagnostic ignored "-Wcast-function-type"
200 int errsv = pthread_create(thr, NULL, (
void *(*)(
void *))func, arg);
202#pragma GCC diagnostic pop
214 return pthread_self();
220 int errsv = pthread_detach(thr);
231 return pthread_equal(thr0, thr1);
237 pthread_exit((
void *)(intptr_t)res);
246 void *value_ptr = NULL;
247 int errsv = pthread_join((pthread_t)thr, &value_ptr);
253 *res = (intptr_t)value_ptr;
261 int res = nanosleep(duration, remaining);
263 res = errno == EINTR ? -1 : -2;
286 int errsv = pthread_key_create(key, dtor);
297 pthread_key_delete(key);
303 return pthread_getspecific(key);
309 int errsv = pthread_setspecific(key, val);
#define _Noreturn
A function declared with a _Noreturn function specifier SHALL not return to its caller.
This is the internal header file of the C11 and POSIX compatibility library.
This header file is part of the C11 and POSIX compatibility library; it includes <stdint....
A time type with nanosecond resolution.
This header file is part of the C11 and POSIX compatibility library; it includes <threads....
int cnd_init(cnd_t *cond)
Creates a condition variable.
int(* thrd_start_t)(void *)
A complete object type that holds a flag for use by call_once().
int thrd_equal(thrd_t thr0, thrd_t thr1)
Determines whether the thread identified by thr0 refers to the thread identified by thr1.
int thrd_create(thrd_t *thr, thrd_start_t func, void *arg)
Creates a new thread executing func(arg).
int tss_create(tss_t *key, tss_dtor_t dtor)
Creates a thread-specific storage pointer with destructor dtor, which may be NULL.
int cnd_timedwait(cnd_t *cond, mtx_t *mtx, const struct timespec *ts)
Atomically unlocks the mutex at mtx and endeavors to block until the condition variable at cond is si...
_Noreturn void thrd_exit(int res)
Terminates execution of the calling thread and sets its result code to res.
void * tss_get(tss_t key)
Returns the value for the current thread held in the thread-specific storage identified by key.
int tss_set(tss_t key, void *val)
Sets the value for the current thread held in the thread-specific storage identified by key to val.
int cnd_broadcast(cnd_t *cond)
Unblocks all of the threads that are blocked on the condition variable at cond at the time of the cal...
int thrd_sleep(const struct timespec *duration, struct timespec *remaining)
Suspends execution of the calling thread until either the interval specified by duration has elapsed ...
int mtx_init(mtx_t *mtx, int type)
Creates a mutex object with properties indicated by type, which must have one of the four values:
int mtx_lock(mtx_t *mtx)
Blocks until it locks the mutex at mtx.
int mtx_timedlock(mtx_t *mtx, const struct timespec *ts)
Endeavors to block until it locks the mutex at mtx or until after the TIME_UTC-based calendar time at...
int thrd_join(thrd_t thr, int *res)
Joins the thread identified by thr with the current thread by blocking until the other thread has ter...
void cnd_destroy(cnd_t *cond)
Releases all resources used by the condition variable at cond.
thrd_t thrd_current(void)
Identifies the thread that called it.
void call_once(once_flag *flag, void(*func)(void))
Uses the #once_flag at flag to ensure that func is called exactly once, the first time the call_once(...
int cnd_wait(cnd_t *cond, mtx_t *mtx)
Atomically unlocks the mutex at mtx and endeavors to block until the condition variable at cond is si...
int mtx_trylock(mtx_t *mtx)
Endeavors to lock the mutex at mtx.
void thrd_yield(void)
Endeavors to permit other threads to run, even if the current thread would ordinarily continue to run...
int thrd_detach(thrd_t thr)
Tells the operating system to dispose of any resources allocated to the thread identified by thr when...
@ thrd_timedout
Indicates that the time specified in the call was reached without acquiring the requested resource.
@ thrd_success
Indicates that the requested operation succeeded.
@ thrd_busy
Indicates that the requested operation failed because a resource requested by a test and return funct...
@ thrd_nomem
Indicates that the requested operation failed because it was unable to allocate memory.
@ thrd_error
Indicates that the requested operation failed.
int mtx_unlock(mtx_t *mtx)
Unlocks the mutex at mtx.
void mtx_destroy(mtx_t *mtx)
Releases any resources used by the mutex at mtx.
void tss_delete(tss_t key)
Releases any resources used by the thread-specific storage identified by key.
int cnd_signal(cnd_t *cond)
Unblocks one of the threads that are blocked on the condition variable at cond at the time of the cal...
@ mtx_recursive
A mutex type that supports recursive locking.