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52 lines
2.1 KiB
C
52 lines
2.1 KiB
C
/* Functions for handling conditional variables. */
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/* Initialize condition variable COND using attributes ATTR, or use
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the default values if later is NULL. */
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int pthread_cond_init(pthread_cond_t *cond,
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const pthread_condattr_t *cond_attr);
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/* Destroy condition variable COND. */
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int pthread_cond_destroy(pthread_cond_t *cond);
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/* Wake up one thread waiting for condition variable COND. */
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int pthread_cond_signal(pthread_cond_t *cond);
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/* Wake up all threads waiting for condition variables COND. */
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int pthread_cond_broadcast(pthread_cond_t *cond);
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/* Wait for condition variable COND to be signaled or broadcast.
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MUTEX is assumed to be locked before.
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This function is a cancellation point and therefore not marked with. */
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int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
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/* Wait for condition variable COND to be signaled or broadcast until
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ABSTIME. MUTEX is assumed to be locked before. ABSTIME is an
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absolute time specification; zero is the beginning of the epoch
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(00:00:00 GMT, January 1, 1970).
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This function is a cancellation point and therefore not marked with. */
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int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
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const struct timespec *abstime);
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/* Functions for handling condition variable attributes. */
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/* Initialize condition variable attribute ATTR. */
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int pthread_condattr_init(pthread_condattr_t *attr);
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/* Destroy condition variable attribute ATTR. */
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int pthread_condattr_destroy(pthread_condattr_t *attr);
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/* Get the process-shared flag of the condition variable attribute ATTR. */
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int pthread_condattr_getpshared(const pthread_condattr_t *attr, int *pshared);
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/* Set the process-shared flag of the condition variable attribute ATTR. */
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int pthread_condattr_setpshared(pthread_condattr_t *attr, int pshared);
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/* Get the clock selected for the conditon variable attribute ATTR. */
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int pthread_condattr_getclock(const pthread_condattr_t *attr,
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clockid_t *clock_id);
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/* Set the clock selected for the conditon variable attribute ATTR. */
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int pthread_condattr_setclock(pthread_condattr_t *attr, clockid_t clock_id);
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