osal_semaphore.h 文件参考

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结构体
struct	osal_semaphore

宏定义
#define	OSAL_SEM_WAIT_FOREVER   (-1)

函数
int	osal_sem_init (osal_semaphore *sem, int val)
	Create a semaphore.
int	osal_sem_binary_sem_init (osal_semaphore *sem, int val)
	Create a binary semaphore.
int	osal_sem_down (osal_semaphore *sem)
	Request a semaphore.
int	osal_sem_down_timeout (osal_semaphore *sem, unsigned int timeout)
	Acquire the semaphore within a specified time that specifies the timeout period.
int	osal_sem_down_interruptible (osal_semaphore *sem)
	acquire the semaphore unless interrupted.
int	osal_sem_trydown (osal_semaphore *sem)
	try to acquire the semaphore, without waiting.
void	osal_sem_up (osal_semaphore *sem)
	Release a semaphore.
void	osal_sem_destroy (osal_semaphore *sem)
	Delete a semaphore.

宏定义说明

OSAL_SEM_WAIT_FOREVER

#define OSAL_SEM_WAIT_FOREVER   (-1)