NAME
pthread_cond_timedwait —
wait on a condition variable for a
specific amount of time
SYNOPSIS
#include
<pthread.h>
int
pthread_cond_timedwait(pthread_cond_t
*cond, pthread_mutex_t
*mutex, const struct
timespec *abstime);
DESCRIPTION
The
pthread_cond_timedwait()
function atomically blocks the current thread waiting on the condition
variable specified by cond, and unblocks the mutex
specified by mutex. The waiting thread unblocks only
after another thread calls
pthread_cond_signal(3), or
pthread_cond_broadcast(3) with the same condition variable,
or if the system time reaches the time specified in
abstime, and the current thread reacquires the lock on
mutex.
RETURN VALUES
If successful, the
pthread_cond_timedwait() function will return zero.
Otherwise an error number will be returned to indicate the error.
ERRORS
pthread_cond_timedwait() will fail if:
- [
EINVAL] - The value specified by cond, mutex or abstime is invalid.
- [
ETIMEDOUT] - The system time has reached or exceeded the time specified in abstime.
SEE ALSO
pthread_cond_broadcast(3), pthread_cond_destroy(3), pthread_cond_init(3), pthread_cond_signal(3), pthread_cond_wait(3)
STANDARDS
pthread_cond_timedwait() conforms to
ISO/IEC 9945-1:1996 (“POSIX.1”).