mutex.h File Reference

Semaphores, Mutexes and Conditions. More...

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

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Macros
#define	janus_mutex_init(a)
	Janus mutex initialization.
#define	JANUS_MUTEX_INITIALIZER   {0}
	Janus static mutex initializer.
#define	janus_mutex_destroy(a)
	Janus mutex destruction.
#define	janus_mutex_lock_nodebug(a)
	Janus mutex lock without debug.
#define	janus_mutex_lock_debug(a)
	Janus mutex lock with debug (prints the line that locked a mutex)
#define	janus_mutex_lock(a)
	Janus mutex lock wrapper (selective locking debug)
#define	janus_mutex_trylock_nodebug(a)
	Janus mutex try lock without debug.
#define	janus_mutex_trylock_debug(a)
	Janus mutex try lock with debug (prints the line that tried to lock a mutex)
#define	janus_mutex_trylock(a)
	Janus mutex try lock wrapper (selective locking debug)
#define	janus_mutex_unlock_nodebug(a)
	Janus mutex unlock without debug.
#define	janus_mutex_unlock_debug(a)
	Janus mutex unlock with debug (prints the line that unlocked a mutex)
#define	janus_mutex_unlock(a)
	Janus mutex unlock wrapper (selective locking debug)
#define	janus_condition_init(a)
	Janus condition initialization.
#define	janus_condition_destroy(a)
	Janus condition destruction.
#define	janus_condition_wait(a, b)
	Janus condition wait.
#define	janus_condition_wait_until(a, b, c)
	Janus condition wait until.
#define	janus_condition_signal(a)
	Janus condition signal.
#define	janus_condition_broadcast(a)
	Janus condition broadcast.

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

Variables
int	lock_debug

Detailed Description

Semaphores, 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

janus_condition_broadcast

#define janus_condition_broadcast

(

a

)

Value:

g_cond_broadcast(a);

Janus condition broadcast.

janus_condition_destroy

#define janus_condition_destroy

(

a

)

Value:

g_cond_clear(a)

Janus condition destruction.

janus_condition_init

#define janus_condition_init

(

a

)

Value:

g_cond_init(a)

Janus condition initialization.

janus_condition_signal

#define janus_condition_signal

(

a

)

Value:

g_cond_signal(a);

Janus condition signal.

janus_condition_wait

#define janus_condition_wait	(		a,
			b )

Value:

g_cond_wait(a, b);

Janus condition wait.

janus_condition_wait_until

#define janus_condition_wait_until	(		a,
			b,
			c )

Value:

g_cond_wait_until(a, b, c);

Janus condition wait until.

janus_mutex_destroy

#define janus_mutex_destroy

(

a

)

Value:

g_mutex_clear(a)

Janus mutex destruction.

janus_mutex_init

#define janus_mutex_init

(

a

)

Value:

g_mutex_init(a)

Janus mutex initialization.

JANUS_MUTEX_INITIALIZER

#define JANUS_MUTEX_INITIALIZER   {0}

Janus static mutex initializer.

janus_mutex_lock

#define janus_mutex_lock

(

a

)

Value:

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

Janus mutex lock wrapper (selective locking debug)

janus_mutex_lock_debug

#define janus_mutex_lock_debug

(

a

)

Value:

{ 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)

janus_mutex_lock_nodebug

#define janus_mutex_lock_nodebug

(

a

)

Value:

g_mutex_lock(a)

Janus mutex lock without debug.

janus_mutex_trylock

#define janus_mutex_trylock

(

a

)

Value:

({ gboolean ret; if(!lock_debug) { janus_mutex_trylock_nodebug(a); } else { janus_mutex_trylock_debug(a); } ret; })

Janus mutex try lock wrapper (selective locking debug)

janus_mutex_trylock_debug

#define janus_mutex_trylock_debug

(

a

)

Value:

{ JANUS_PRINT("[%s:%s:%d:trylock] %p\n", __FILE__, __FUNCTION__, __LINE__, a); ret = g_mutex_trylock(a); }

Janus mutex try lock with debug (prints the line that tried to lock a mutex)

janus_mutex_trylock_nodebug

#define janus_mutex_trylock_nodebug

(

a

)

Value:

{ ret = g_mutex_trylock(a); }

Janus mutex try lock without debug.

janus_mutex_unlock

#define janus_mutex_unlock

(

a

)

Value:

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

Janus mutex unlock wrapper (selective locking debug)

janus_mutex_unlock_debug

#define janus_mutex_unlock_debug

(

a

)

Value:

{ 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)

janus_mutex_unlock_nodebug

#define janus_mutex_unlock_nodebug

(

a

)

Value:

g_mutex_unlock(a)

Janus mutex unlock without debug.

Typedef Documentation

janus_condition

typedef GCond janus_condition

Janus condition implementation.

janus_mutex

typedef GMutex janus_mutex

Janus mutex implementation.

Variable Documentation

lock_debug

int lock_debug

extern