oSIP semaphore definitions

Data Structures
struct	osip_sem
	Structure for referencing a semaphore element. More...

Functions
struct osip_sem *	osip_sem_init (unsigned int value)
	Allocate and Initialise a semaphore. More...
int	osip_sem_destroy (struct osip_sem *sem)
	Destroy a semaphore. More...
int	osip_sem_post (struct osip_sem *sem)
	Post operation on a semaphore. More...
int	osip_sem_wait (struct osip_sem *sem)
	Wait operation on a semaphore. More...
int	osip_sem_trywait (struct osip_sem *sem)
	Wait operation on a semaphore. More...

Detailed Description

Function Documentation

int osip_sem_destroy

(

struct osip_sem *

sem

)

#include <osip_mt.h>

Destroy a semaphore.

Parameters

sem	The semaphore to destroy.

struct osip_sem* osip_sem_init

(

unsigned int

value

)

#include <osip_mt.h>

Allocate and Initialise a semaphore.

Parameters

value

The initial value for the semaphore.

int osip_sem_post

(

struct osip_sem *

sem

)

#include <osip_mt.h>

Post operation on a semaphore.

Parameters

sem	The semaphore to destroy.

int osip_sem_trywait

(

struct osip_sem *

sem

)

#include <osip_mt.h>

Wait operation on a semaphore.

NOTE: if the semaphore is at 0, this call won't block.

Parameters

sem	The semaphore to destroy.

int osip_sem_wait

(

struct osip_sem *

sem

)

#include <osip_mt.h>

Wait operation on a semaphore.

NOTE: this call will block if the semaphore is at 0.

Parameters

sem	The semaphore to destroy.