TizenRT Libs&Environment
v2.0 M2
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Semaphore APIs. More...
#include <tinyara/config.h>
#include <stdint.h>
#include <limits.h>
Go to the source code of this file.
Data Structures | |
struct | semholder_s |
Structure of semholder. More... | |
struct | sem_s |
Structure of generic semaphore. More... | |
Macros | |
#define | PRIOINHERIT_FLAGS_DISABLE |
#define | FLAGS_INITIALIZED (1 << 1) /* Bit 1: This semaphore initialized */ |
#define | SEMHOLDER_INITIALIZER {NULL, NULL, 0} |
#define | SEM_INITIALIZER(c) {(c), FLAGS_INITIALIZED, NULL} /* semcount, flags, hhead */ |
Sem initializer. More... | |
#define | EXTERN extern |
Typedefs | |
typedef struct sem_s | sem_t |
Functions | |
int | sem_init (FAR sem_t *sem, int pshared, unsigned int value) |
initialize an unnamed semaphore More... | |
int | sem_destroy (FAR sem_t *sem) |
destroy an unnamed semaphore More... | |
int | sem_wait (FAR sem_t *sem) |
lock a semaphore More... | |
int | sem_timedwait (FAR sem_t *sem, FAR const struct timespec *abstime) |
lock a semaphore More... | |
int | sem_trywait (FAR sem_t *sem) |
lock a semaphore More... | |
int | sem_post (FAR sem_t *sem) |
unlock a semaphore More... | |
int | sem_getvalue (FAR sem_t *sem, FAR int *sval) |
get the value of a semaphore More... | |
void | sem_timeout (int argc, uint32_t pid) |
Semaphore APIs.
Definition in file semaphore.h.
#define EXTERN extern |
Definition at line 156 of file semaphore.h.
#define FLAGS_INITIALIZED (1 << 1) /* Bit 1: This semaphore initialized */ |
Definition at line 81 of file semaphore.h.
#define PRIOINHERIT_FLAGS_DISABLE |
Definition at line 79 of file semaphore.h.
#define SEMHOLDER_INITIALIZER {NULL, NULL, 0} |
Definition at line 103 of file semaphore.h.
Definition at line 130 of file semaphore.h.
void sem_timeout | ( | int | argc, |
uint32_t | pid | ||
) |