mutex.h File Reference

Mutex for thread synchronization. More...

Detailed Description

Mutex for thread synchronization.

Kaspar Schleiser

Definition in file mutex.h.

#include <stddef.h>
#include <stdint.h>
#include "kernel_defines.h"
#include "list.h"
#include "thread.h"
#include "irq.h"
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Data Structures

struct  mutex_t
 Mutex structure. More...
struct  mutex_cancel_t
 A cancellation structure for use with mutex_lock_cancelable and mutex_cancel. More...


#define MUTEX_INIT   { .queue = { .next = NULL } }
 Static initializer for mutex_t. More...
#define MUTEX_INIT_LOCKED   { .queue = { .next = MUTEX_LOCKED } }
 Static initializer for mutex_t with a locked mutex.


static void mutex_init (mutex_t *mutex)
 Initializes a mutex object. More...
static mutex_cancel_t mutex_cancel_init (mutex_t *mutex)
 Initialize a mutex cancellation structure. More...
int mutex_trylock_ffi (mutex_t *mutex)
 Tries to get a mutex, non-blocking.
static int mutex_trylock (mutex_t *mutex)
 Tries to get a mutex, non-blocking. More...
void mutex_lock (mutex_t *mutex)
 Locks a mutex, blocking. More...
int mutex_lock_cancelable (mutex_cancel_t *mc)
 Locks a mutex, blocking. More...
void mutex_unlock (mutex_t *mutex)
 Unlocks the mutex. More...
void mutex_unlock_and_sleep (mutex_t *mutex)
 Unlocks the mutex and sends the current thread to sleep. More...
void mutex_cancel (mutex_cancel_t *mc)
 Cancels a call to mutex_lock_cancelable. More...