SEM.ih.px-xxx-xxx File Reference

Simple semaphore, POSIX platform dependent inline implementation. More...

#include <PBS/MBA.h>
#include <PBS/SEM.h>
#include <semaphore.h>

Functions
SEM	SEM__create (unsigned int options)
	Creates a semaphore.
unsigned int	SEM__takeW (SEM semaphore)
	Takes the semaphore. This call will block until the semaphore can be acquired.
unsigned int	SEM__give (SEM semaphore)
	Gives the semaphore.
unsigned int	SEM__destroy (SEM semaphore)
	Destroys the semaphore.

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Detailed Description

Simple semaphore, POSIX platform dependent inline implementation.

Author:

JJRussell - russell@slac.stanford.edu

    CVS $Id: SEM.ih.px-xxx-xxx,v 1.4 2011/03/24 23:05:45 apw Exp $

This implementation uses the REAL-TIME extensions

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Function Documentation

SEM SEM__create

(

unsigned int

options

)

Creates a semaphore.

Returns:

Status

Parameters:

options

A bit mask of options formed from the enumeration SEM_OPTIONS_M

References MBA_alloc(), and MBA_free().

unsigned int SEM__destroy

(

SEM

semaphore

)

Destroys the semaphore.

Parameters:

semaphore

The semaphore to destroy

References MBA_free().

unsigned int SEM__give

(

SEM

semaphore

)

Gives the semaphore.

Parameters:

semaphore

The semaphore to give

unsigned int SEM__takeW

(

SEM

semaphore

)

Takes the semaphore. This call will block until the semaphore can be acquired.

Parameters:

semaphore

The semamphore to take