.\" $OpenBSD: pthread_mutex_destroy.3,v 1.11 2020/04/03 13:05:08 stsp Exp $
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.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
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.\" $FreeBSD: pthread_mutex_destroy.3,v 1.5 1999/08/28 00:03:07 peter Exp $
.\"
.Dd $Mdocdate: April 3 2020 $
.Dt PTHREAD_MUTEX_DESTROY 3
.Os
.Sh NAME
.Nm pthread_mutex_destroy
.Nd free resources allocated for a mutex
.Sh SYNOPSIS
.In pthread.h
.Ft int
.Fn pthread_mutex_destroy "pthread_mutex_t *mutex"
.Sh DESCRIPTION
The
.Fn pthread_mutex_destroy
function frees the resources allocated for
.Fa mutex .
.Sh RETURN VALUES
If successful,
.Fn pthread_mutex_destroy
will return zero, otherwise an error number will be returned to
indicate the error.
.Sh ERRORS
.Fn pthread_mutex_destroy
will fail if:
.Bl -tag -width Er
.It Bq Er EINVAL
The value specified by
.Fa mutex
is invalid.
.It Bq Er EBUSY
.Fa mutex
is locked or referenced by another thread.
.El
.Sh SEE ALSO
.Xr pthread_mutex_init 3 ,
.Xr pthread_mutex_lock 3 ,
.Xr pthread_mutex_unlock 3
.Sh STANDARDS
.Fn pthread_mutex_destroy
conforms to
.St -p1003.1-96 .