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

NAME

pthread_mutex_trylock - attempt to lock a mutex without blocking

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
Standards

LIBRARY


.Lb libc_r
.Lb libpthread
.Lb libthr

SYNOPSIS


.In pthread.h int pthread_mutex_trylock "pthread_mutex_t *mutex"

DESCRIPTION

The pthread_mutex_trylock function locks mutex. If the mutex is already locked, pthread_mutex_trylock will not block waiting for the mutex, but will return an error condition.

RETURN VALUES

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

ERRORS

The pthread_mutex_trylock function will fail if:
[EINVAL]
The value specified by mutex is invalid.
[EBUSY]
Mutex is already locked.

SEE ALSO

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

STANDARDS


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