LCOM1920-T02G10

#ifndef _DDEKIT_SEMAPHORE_H

#define _DDEKIT_SEMAPHORE_H

#include <ddekit/ddekit.h>

/** \defgroup DDEKit_synchronization */

struct ddekit_sem;

typedef struct ddekit_sem ddekit_sem_t;

/** Initialize DDEKit semaphore.

 *

 * \ingroup DDEKit_synchronization

 *

 * \param value  initial semaphore counter

 */

ddekit_sem_t *ddekit_sem_init(int value);

/** Uninitialize semaphore.

 *

 * \ingroup DDEKit_synchronization

 */

void ddekit_sem_deinit(ddekit_sem_t *sem);

/** Semaphore down method. */

void ddekit_sem_down(ddekit_sem_t *sem);

/** Semaphore down method, non-blocking.

 *

 * \ingroup DDEKit_synchronization

 *

 * \return 0   success

 * \return !=0 would block

 */

int ddekit_sem_down_try(ddekit_sem_t *sem);

/** Semaphore down with timeout.

 *

 * \ingroup DDEKit_synchronization

 *

 * \return 0   success

 * \return !=0 would block

 */

int ddekit_sem_down_timed(ddekit_sem_t *sem, int timo);

/** Semaphore up method.

 *

 * \ingroup DDEKit_synchronization

 */

void ddekit_sem_up(ddekit_sem_t *sem);

#endif