LOS_MuxPend

Mutex

Wait to lock a mutex.

Description:: This API is used to wait for a specified period of time to lock a mutex.

注意:

The specific mutex should be created firstly.
The function fails if the mutex that is waited on is already locked by another thread when the task scheduling is disabled.
Do not wait on a mutex during an interrupt.
The priority inheritance protocol is supported. If a higher-priority thread is waiting on a mutex, it changes the priority of the thread that owns the mutex to avoid priority inversion.
A recursive mutex can be locked more than once by the same thread.

参数:

	参数名称	描述
	uwMuxHandle	[IN] Handle of the mutex to be waited on. The value of handle should be in [0, LOSCFG_BASE_IPC_MUX_LIMIT - 1].
	uwTimeout	[IN] Waiting time. The value range is [0, LOS_WAIT_FOREVER](unit: Tick).

返回值:

	返回值	描述
	LOS_ERRNO_MUX_INVALID	The mutex state (for example, the mutex does not exist or is not in use) is not applicable for the current operation.
	LOS_ERRNO_MUX_UNAVAILABLE	The mutex fails to be locked because it is locked by another thread and a period of time is not set for waiting for the mutex to become available.
	LOS_ERRNO_MUX_PEND_INTERR	The mutex is being locked during an interrupt.
	LOS_ERRNO_MUX_PEND_IN_LOCK	The mutex is waited on when the task scheduling is disabled.
	LOS_ERRNO_MUX_TIMEOUT	The mutex waiting times out.
	LOS_OK	The mutex is successfully locked.

Dependency: