tenok_2semaphore_8h_source.html

 #ifndef __SEMAPHORE_H__

 #define __SEMAPHORE_H__


 #include <stdint.h>

 #include <time.h>


 #define __SIZEOF_SEM_T 12 /* sizeof(struct semaphore) */


 typedef union {

     char __size[__SIZEOF_SEM_T];

     uint32_t __align;

 } sem_t;


 int sem_init(sem_t *sem, int pshared, unsigned int value);


 int sem_destroy(sem_t *sem);


 int sem_post(sem_t *sem);


 int sem_trywait(sem_t *sem);


 int sem_wait(sem_t *sem);


 int sem_timedwait(sem_t *sem, const struct timespec *abstime);


 int sem_getvalue(sem_t *sem, int *sval);


 #endif

timespec
Definition: time.h:16

sem_post
int sem_post(sem_t *sem)
Increase the value of the semaphore.
Definition: semaphore.c:112

sem_trywait
int sem_trywait(sem_t *sem)
The same as sem_wait(), except that if the decrement cannot be immediately performed,...
Definition: semaphore.c:122

sem_init
int sem_init(sem_t *sem, int pshared, unsigned int value)
Initialize the semaphore.
Definition: semaphore.c:89

sem_destroy
int sem_destroy(sem_t *sem)
Destroy the semaphore.
Definition: semaphore.c:98

sem_getvalue
int sem_getvalue(sem_t *sem, int *sval)
Get the value of the semaphore.
Definition: semaphore.c:152

sem_timedwait
int sem_timedwait(sem_t *sem, const struct timespec *abstime)
Decrement the semaphore or timeout at abstime.
Definition: semaphore.c:142

sem_wait
int sem_wait(sem_t *sem)
Decrement the value of the semaphore. If the semaphore currently has the value zero,...
Definition: semaphore.c:132

time.h

sem_t
Definition: semaphore.h:12