Semaphore

UINT32 LOS_SemPost ( UINT32  uwSemHandle  )  Release a semaphore. Description: This API is used to release a semaphore that has a semaphore control structure ID specified by uwSemHandle. 注意: The specified sem id must be created first. 参数: 参数名称 描述 uwSemHandle  [IN] ID of the semaphore control structure to be released.The ID of the semaphore control structure is obtained from semaphore creation. 返回值: 返回值 描述 LOS_ERRNO_SEM_INVALID  The passed-in uwSemHandle value is invalid. LOS_ERRNO_SEM_OVERFLOW  The times of semaphore release exceed the maximum times permitted. LOS_OK  The semaphore is successfully released. Dependency: los_sem.h: the header file that contains the API declaration. 参见: LOS_SemPend | LOS_SemCreate 自从: Huawei LiteOS V100R001C00