Process-in-Process: BLT/ULP Mutex Functions

Process-in-Process

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Functions
int	pip_mutex_init (pip_mutex_t *mutex)
	Initialize PiP mutex. More...

int	pip_mutex_lock (pip_mutex_t *mutex)
	Lock PiP mutex. More...

int	pip_mutex_unlock (pip_mutex_t *mutex)
	Unlock PiP mutex. More...

int	pip_mutex_fin (pip_mutex_t *mutex)
	Finalize PiP mutex. More...

Detailed Description

Function Documentation

int pip_mutex_init ( pip_mutex_t * mutex )

Name: pip_mutex_init

Synopsis: #include <pip/pip.h>
int pip_mutex_init( pip_mutex_t *mutex );

Parameters

[in,out] mutex pointer to the PiP task mutex

Returns: Return 0 on success. Return an error code on error.

Return values

EPERM PiP library is not yet initialized or already finalized

See Also: pip_mutex_lock; pip_mutex_unlock; pip_mutex_fin

int pip_mutex_lock ( pip_mutex_t * mutex )

Name: pip_mutex_lock

Synopsis: #include <pip/pip.h>
int pip_mutex_lock( pip_mutex_t *mutex );

Parameters

[in] mutex pointer to the PiP task mutex

Returns: Return 0 on success. Return an error code on error.

Return values

EPERM PiP library is not yet initialized or already finalized

See Also: pip_mutex_init; pip_mutex_unlock; pip_mutex_fin

int pip_mutex_unlock ( pip_mutex_t * mutex )

Name: pip_mutex_unlock

Synopsis: #include <pip/pip.h>
int pip_mutex_unlock( pip_mutex_t *mutex );

Parameters

[in] mutex pointer to the PiP task mutex

Returns: Return 0 on success. Return an error code on error.

Return values

EPERM PiP library is not yet initialized or already finalized

See Also: pip_mutex_init; pip_mutex_lock; pip_mutex_fin

int pip_mutex_fin ( pip_mutex_t * mutex )

Name: pip_mutex_fin

Synopsis: #include <pip/pip.h>
int pip_mutex_fin( pip_mutex_t *mutex );

Parameters

[in,out] mutex pointer to the PiP task mutex

Returns: Return 0 on success. Return an error code on error.

Return values

EPERM	PiP library is not yet initialized or already finalized
EBUSY	There is one or more waiting PiP task

See Also: pip_mutex_lock; pip_mutex_unlock