53 lines
1,018 B
C
53 lines
1,018 B
C
#ifndef _DDEKIT_SEMAPHORE_H
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#define _DDEKIT_SEMAPHORE_H
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#include <ddekit/ddekit.h>
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/** \defgroup DDEKit_synchronization */
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struct ddekit_sem;
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typedef struct ddekit_sem ddekit_sem_t;
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/** Initialize DDEKit semaphore.
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*
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* \ingroup DDEKit_synchronization
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*
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* \param value initial semaphore counter
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*/
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ddekit_sem_t *ddekit_sem_init(int value);
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/** Uninitialize semaphore.
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*
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* \ingroup DDEKit_synchronization
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*/
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void ddekit_sem_deinit(ddekit_sem_t *sem);
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/** Semaphore down method. */
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void ddekit_sem_down(ddekit_sem_t *sem);
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/** Semaphore down method, non-blocking.
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*
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* \ingroup DDEKit_synchronization
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*
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* \return 0 success
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* \return !=0 would block
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*/
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int ddekit_sem_down_try(ddekit_sem_t *sem);
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/** Semaphore down with timeout.
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*
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* \ingroup DDEKit_synchronization
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*
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* \return 0 success
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* \return !=0 would block
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*/
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int ddekit_sem_down_timed(ddekit_sem_t *sem, int timo);
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/** Semaphore up method.
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*
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* \ingroup DDEKit_synchronization
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*/
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void ddekit_sem_up(ddekit_sem_t *sem);
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#endif
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