/** \brief Wait for the condition
*
* \b os_condWait calls \b pthread_cond_wait to wait
* for the condition.
*/
os_result
os_condWait (
os_cond *cond,
os_mutex *mutex)
{
return condTimedWait(cond, mutex, INFINITE);
}
/** \brief Wait for the condition
*
* \b os_condWait calls \b pthread_cond_wait to wait
* for the condition.
*/
void
os_condWait (
os_cond *cond,
os_mutex *mutex)
{
(void) condTimedWait(cond, mutex, INFINITE);
}
/** \brief Wait for the condition but return when the specified
* time has expired before the condition is triggered
*
* \b os_condTimedWait calls \b pthread_cond_timedwait to
* wait for the condition with a timeout.
*
* \b os_condTimedWait provides an relative time to wait while
* \b pthread_cond_timedwait expects an absolute time to wakeup.
* The absolute time is calculated from the current time + the
* provided relative time.
*
* \b os_condTimedWait will repeat \b pthread_cond_timedwait in case of an
* interrupted system call. Because the time which is passed onto
* \b pthread_cond_timedwait is absolute, no remaining time must be
* calculated.
*/
os_result
os_condTimedWait (
os_cond *cond,
os_mutex *mutex,
const os_time *time)
{
DWORD wait_time;
assert (cond != NULL);
assert (mutex != NULL);
assert (time != NULL);
wait_time = time->tv_sec * 1000 + time->tv_nsec / 1000000;
return condTimedWait(cond, mutex, wait_time);
}
/** \brief Wait for the condition but return when the specified
* time has expired before the condition is triggered
*
* \b os_condTimedWait calls \b pthread_cond_timedwait to
* wait for the condition with a timeout.
*
* \b os_condTimedWait provides an relative time to wait while
* \b pthread_cond_timedwait expects an absolute time to wakeup.
* The absolute time is calculated from the current time + the
* provided relative time.
*
* \b os_condTimedWait will repeat \b pthread_cond_timedwait in case of an
* interrupted system call. Because the time which is passed onto
* \b pthread_cond_timedwait is absolute, no remaining time must be
* calculated.
*/
os_result
os_condTimedWait (
os_cond *cond,
os_mutex *mutex,
os_duration timeout)
{
DWORD wait_time;
assert (cond != NULL);
assert (mutex != NULL);
assert (OS_DURATION_ISPOSITIVE(timeout));
if (timeout < 0) {
wait_time = 0;
} else {
wait_time = (DWORD)(timeout/1000000);
}
return condTimedWait(cond, mutex, wait_time);
}
