mutex.h File Reference

Semaphors, Mutexes and Conditions. More...

#include <pthread.h>
#include <errno.h>
#include "debug.h"

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Macros
#define	janus_mutex_init(a)   g_mutex_init(a)
	Janus mutex initialization. More...
#define	JANUS_MUTEX_INITIALIZER   {0}
	Janus static mutex initializer. More...
#define	janus_mutex_destroy(a)   g_mutex_clear(a)
	Janus mutex destruction. More...
#define	janus_mutex_lock_nodebug(a)   g_mutex_lock(a);
	Janus mutex lock without debug. More...
#define	janus_mutex_lock_debug(a)   { JANUS_PRINT("[%s:%s:%d:lock] %p\n", __FILE__, __FUNCTION__, __LINE__, a); g_mutex_lock(a); };
	Janus mutex lock with debug (prints the line that locked a mutex) More...
#define	janus_mutex_lock(a)   { if(!lock_debug) { janus_mutex_lock_nodebug(a); } else { janus_mutex_lock_debug(a); } };
	Janus mutex lock wrapper (selective locking debug) More...
#define	janus_mutex_unlock_nodebug(a)   g_mutex_unlock(a);
	Janus mutex unlock without debug. More...
#define	janus_mutex_unlock_debug(a)   { JANUS_PRINT("[%s:%s:%d:unlock] %p\n", __FILE__, __FUNCTION__, __LINE__, a); g_mutex_unlock(a); };
	Janus mutex unlock with debug (prints the line that unlocked a mutex) More...
#define	janus_mutex_unlock(a)   { if(!lock_debug) { janus_mutex_unlock_nodebug(a); } else { janus_mutex_unlock_debug(a); } };
	Janus mutex unlock wrapper (selective locking debug) More...
#define	janus_condition_init(a)   g_cond_init(a)
	Janus condition initialization. More...
#define	janus_condition_destroy(a)   g_cond_clear(a)
	Janus condition destruction. More...
#define	janus_condition_wait(a, b)   g_cond_wait(a, b);
	Janus condition wait. More...
#define	janus_condition_wait_until(a, b, c)   g_cond_wait_until(a, b, c);
	Janus condition wait until. More...
#define	janus_condition_signal(a)   g_cond_signal(a);
	Janus condition signal. More...
#define	janus_condition_broadcast(a)   g_cond_broadcast(a);
	Janus condition broadcast. More...

Typedefs
typedef GMutex	janus_mutex
	Janus mutex implementation. More...
typedef GCond	janus_condition
	Janus condition implementation. More...

Variables
int	lock_debug

Detailed Description

Semaphors, Mutexes and Conditions.

Author

Lorenzo Miniero loren.nosp@m.zo@m.nosp@m.eetec.nosp@m.ho.c.nosp@m.om

Implementation (based on GMutex or pthread_mutex) of a locking mechanism based on mutexes and conditions.

Core

Macro Definition Documentation

#define janus_condition_broadcast

(

a

)

g_cond_broadcast(a);

Janus condition broadcast.

#define janus_condition_destroy

(

a

)

g_cond_clear(a)

Janus condition destruction.

#define janus_condition_init

(

a

)

g_cond_init(a)

Janus condition initialization.

#define janus_condition_signal

(

a

)

g_cond_signal(a);

Janus condition signal.

#define janus_condition_wait	(		a,
			b
	)		g_cond_wait(a, b);

Janus condition wait.

#define janus_condition_wait_until	(		a,
			b,
			c
	)		g_cond_wait_until(a, b, c);

Janus condition wait until.

#define janus_mutex_destroy

(

a

)

g_mutex_clear(a)

Janus mutex destruction.

#define janus_mutex_init

(

a

)

g_mutex_init(a)

Janus mutex initialization.

#define JANUS_MUTEX_INITIALIZER   {0}

Janus static mutex initializer.

#define janus_mutex_lock

(

a

)

{ if(!lock_debug) { janus_mutex_lock_nodebug(a); } else { janus_mutex_lock_debug(a); } };

Janus mutex lock wrapper (selective locking debug)

#define janus_mutex_lock_debug

(

a

)

{ JANUS_PRINT("[%s:%s:%d:lock] %p\n", __FILE__, __FUNCTION__, __LINE__, a); g_mutex_lock(a); };

Janus mutex lock with debug (prints the line that locked a mutex)

#define janus_mutex_lock_nodebug

(

a

)

g_mutex_lock(a);

Janus mutex lock without debug.

#define janus_mutex_unlock

(

a

)

{ if(!lock_debug) { janus_mutex_unlock_nodebug(a); } else { janus_mutex_unlock_debug(a); } };

Janus mutex unlock wrapper (selective locking debug)

#define janus_mutex_unlock_debug

(

a

)

{ JANUS_PRINT("[%s:%s:%d:unlock] %p\n", __FILE__, __FUNCTION__, __LINE__, a); g_mutex_unlock(a); };

Janus mutex unlock with debug (prints the line that unlocked a mutex)

#define janus_mutex_unlock_nodebug

(

a

)

g_mutex_unlock(a);

Janus mutex unlock without debug.

Typedef Documentation

typedef GCond janus_condition

Janus condition implementation.

typedef GMutex janus_mutex

Janus mutex implementation.

Variable Documentation

int lock_debug