Process-in-Process: BLT/ULP Barrier Functions

Process-in-Process

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Functions
int	pip_barrier_init (pip_barrier_t *barrp, int n)
	initialize barrier synchronization structure More...

int	pip_barrier_wait (pip_barrier_t *barrp)
	wait on barrier synchronization in a busy-wait way int pip_barrier_wait( pip_barrier_t *barrp ); More...

int	pip_barrier_fin (pip_barrier_t *barrp)
	finalize barrier synchronization structure More...

Detailed Description

BLT/ULP barrier synchronization functions

Description: BLT/ULP barrier synchronization functions

Description: BLT/ULP mutex functions

Function Documentation

int pip_barrier_init	(	pip_barrier_t *	barrp,
		int	n
	)

Name: pip_barrier_init

Synopsis: #include <pip/pip.h>
int pip_barrier_init( pip_barrier_t *barrp, int n );

Parameters

[in]	barrp	pointer to a PiP barrier structure
[in]	n	number of participants of this barrier synchronization

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

Return values

EPERM	PiP library is not yet initialized or already finalized
EINAVL	`n` is invalid

Note: This barrier works on PiP tasks only.

See Also: pip_barrier_init; pip_barrier_fin

int pip_barrier_wait ( pip_barrier_t * barrp )

Name: pip_barrier_wait

Synopsis: #include <pip/pip.h>
int pip_barrier_wait( pip_barrier_t *barrp );

Parameters

[in] barrp pointer to a PiP barrier structure

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_barrier_init; pip_barrier_fin

int pip_barrier_fin ( pip_barrier_t * barrp )

Name: pip_barrier_fin

Synopsis: #include <pip/pip.h>
int pip_barrier_fin( pip_barrier_t *barrp );

Parameters

[in] barrp pointer to a PiP barrier structure

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 are some tasks wating for barrier synchronization

See Also: pip_barrier_init; pip_barrier_wait