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PTHREAD_MUTEX_TIMEDLOCK (3) | C library functions | Unix Manual Pages | :man

NAME

pthread_mutex_timedlock - lock a mutex without blocking indefinitely

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
Standards

LIBRARY


.Lb libpthread
.Lb libthr

SYNOPSIS


.In pthread.h
.In time.h int pthread_mutex_timedlock "pthread_mutex_t *mutex" "const struct timespec *abs_timeout"

DESCRIPTION

The pthread_mutex_timedlock function will lock mutex. If it is already locked the calling thread will block until the mutex becomes available or the timeout, specified by abs_timeout, expires. The time of the timeout is an absolute time and is not relative to the current time.

RETURN VALUES

If successful, pthread_mutex_timedlock will return zero, otherwise an error number will be returned to indicate the error.

ERRORS

The pthread_mutex_timedlock function will fail if:
[EINVAL]
The mutex was created with the protocol attribute having the value PTHREAD_PRIO_PROTECT and the calling thread’s priority is higher than the mutex’s current priority ceiling.
[EINVAL]
The process or thread would have blocked, and abs_timeout specified a nanosecond value less than zero or greater than or equal to 1 billion.
[EINVAL]
The mutex parameter is invalid.
[ETIMEDOUT]
The mutex could not be locked before the timeout expired.
[EAGAIN]
The mutex could not be acquired because the maximum number of recursive locks for the mutex has been exceeded.
[EDEADLK]
The current thread already owns the mutex.

SEE ALSO

pthread_mutex_destroy(3), pthread_mutex_init(3), pthread_mutex_lock(3), pthread_mutex_trylock(3), pthread_mutex_unlock(3)

STANDARDS


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