condvar.c File Reference

Wraps condition variables. More...

#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <stddef.h>
#include <yaz/xmalloc.h>
#include <yaz/nmem.h>
#include <yaz/log.h>
#include <yaz/mutex.h>
#include <yaz/gettimeofday.h>
#include <time.h>
#include "mutex-p.h"

Go to the source code of this file.

Data Structures
struct	yaz_cond

Functions
void	yaz_cond_create (YAZ_COND *p)
	creates condition variable
void	yaz_cond_destroy (YAZ_COND *p)
	destroys condition variable
int	yaz_cond_wait (YAZ_COND p, YAZ_MUTEX m, const struct timeval *abstime)
	waits for condition
int	yaz_cond_signal (YAZ_COND p)
	unblock one thread waiting for block
int	yaz_cond_broadcast (YAZ_COND p)
	unblock all threads waiting for block

Detailed Description

Wraps condition variables.

Definition in file condvar.c.

Function Documentation

yaz_cond_broadcast()

int yaz_cond_broadcast

(

YAZ_COND

p

)

unblock all threads waiting for block

Parameters

p	condition variable handle

Definition at line 120 of file condvar.c.

yaz_cond_create()

void yaz_cond_create

(

YAZ_COND *

p

)

creates condition variable

Parameters

p	reference to condition handle

Upon successful completion *p holds the condition handle; *p = 0 on error.

Definition at line 49 of file condvar.c.

References malloc().

yaz_cond_destroy()

void yaz_cond_destroy

(

YAZ_COND *

p

)

destroys condition variable

Parameters

p	reference to condition handle

Upon completion *p holds 0.

Definition at line 62 of file condvar.c.

References free().

yaz_cond_signal()

int yaz_cond_signal

(

YAZ_COND

p

)

unblock one thread waiting for block

Parameters

p	condition variable handle

Definition at line 108 of file condvar.c.

yaz_cond_wait()

int yaz_cond_wait	(	YAZ_COND	p,
		YAZ_MUTEX	m,
		const struct timeval *	abstime
	)

waits for condition

Parameters

p	condition variable handle
m	mutex
abstime	wait until this time; 0 for indefinite wait

Semantics like pthread_cond_wait.

Definition at line 75 of file condvar.c.

References yaz_gettimeofday().