pthread_rwlock_timedwrlock(3)

NAME

library ``libpthread'' library ``libthr''

#include <pthread.h>
int
pthread_rwlock_timedwrlock(pthread_rwlock_t *rwlock,
        const struct timespec *abs_timeout);

This function acquires a write lock on the read-write lock
rwlock. However, if the lock cannot be acquired without waiting for an
other thread to unlock the lock, this wait shall be terminated when
abs_timeout
expires.
If the thread should be interrupted by a signal, the
pthread_rwlock_timedwrlock() function will be automatically
restarted after the thread returns from the signal handler.
The calling thread may deadlock if at the time the call is
made it holds rwlock. The results are undefined if this function is
called with an uninitialized read-write lock.

The pthread_rwlock_timedwrlock() function shall fail if:

[ETIMEDOUT] The lock could not be acquired before the
specified: timeout expired.
The pthread_rwlock_timedrwlock() function may fail if:
[EDEADLK] The calling thread already holds rwlock.
[EINVAL] The value specified by rwlock does not
refer to an: initialized read-write lock object, or; the abs_timeout
nanosecond value is less than zero or; greater than or
equal to 1 billion.