mutex.h File Reference

Mutex synchronization primitive. More...

#include <sys/lock.h>
#include "../types.h"

Go to the source code of this file.

Typedefs
typedef _LOCK_T	Mutex
	Mutex datatype, defined in newlib.
typedef _LOCK_RECURSIVE_T	RMutex
	Recursive mutex datatype, defined in newlib.

Functions
static void	mutexInit (Mutex *m)
	Initializes a mutex. More...
void	mutexLock (Mutex *m)
	Locks a mutex. More...
bool	mutexTryLock (Mutex *m)
	Attempts to lock a mutex without waiting. More...
void	mutexUnlock (Mutex *m)
	Unlocks a mutex. More...
bool	mutexIsLockedByCurrentThread (const Mutex *m)
	Gets whether the current thread owns the mutex. More...
static void	rmutexInit (RMutex *m)
	Initializes a recursive mutex. More...
void	rmutexLock (RMutex *m)
	Locks a recursive mutex. More...
bool	rmutexTryLock (RMutex *m)
	Attempts to lock a recursive mutex without waiting. More...
void	rmutexUnlock (RMutex *m)
	Unlocks a recursive mutex. More...

Detailed Description

Mutex synchronization primitive.

Author

plutoo

Copyright

libnx Authors

Function Documentation

mutexInit()

static void mutexInit ( Mutex *  m )

inlinestatic

Initializes a mutex.

Parameters

m	Mutex object.

Note

A mutex can also be statically initialized by assigning 0 to it.

mutexIsLockedByCurrentThread()

bool mutexIsLockedByCurrentThread

(

const Mutex *

m

)

Gets whether the current thread owns the mutex.

Parameters

m	Mutex object.

Returns

1 if the mutex is locked by the current thread, and 0 otherwise.

mutexLock()

void mutexLock

(

Mutex *

m

)

Locks a mutex.

Parameters

m	Mutex object.

mutexTryLock()

bool mutexTryLock

(

Mutex *

m

)

Attempts to lock a mutex without waiting.

Parameters

m	Mutex object.

Returns

1 if the mutex has been acquired successfully, and 0 on contention.

mutexUnlock()

void mutexUnlock

(

Mutex *

m

)

Unlocks a mutex.

Parameters

m	Mutex object.

rmutexInit()

static void rmutexInit ( RMutex *  m )

inlinestatic

Initializes a recursive mutex.

Parameters

m	Recursive mutex object.

Note

A recursive mutex can also be statically initialized by assigning {0,0,0} to it.

rmutexLock()

void rmutexLock

(

RMutex *

m

)

Locks a recursive mutex.

Parameters

m	Recursive mutex object.

rmutexTryLock()

bool rmutexTryLock

(

RMutex *

m

)

Attempts to lock a recursive mutex without waiting.

Parameters

m	Recursive mutex object.

Returns

1 if the mutex has been acquired successfully, and 0 on contention.

rmutexUnlock()

void rmutexUnlock

(

RMutex *

m

)

Unlocks a recursive mutex.

Parameters

m	Recursive mutex object.