1.\" Copyright (c) 1998 Alex Nash 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd August 4, 1998 28.Dt PTHREAD_RWLOCK_DESTROY 3 29.Os 30.Sh NAME 31.Nm pthread_rwlock_destroy 32.Nd destroy a read/write lock 33.Sh LIBRARY 34.Lb libpthread 35.Sh SYNOPSIS 36.In pthread.h 37.Ft int 38.Fn pthread_rwlock_destroy "pthread_rwlock_t *lock" 39.Sh DESCRIPTION 40The 41.Fn pthread_rwlock_destroy 42function is used to destroy a read/write lock previously created with 43.Fn pthread_rwlock_init . 44.Sh RETURN VALUES 45If successful, the 46.Fn pthread_rwlock_destroy 47function will return zero. 48Otherwise an error number will be returned 49to indicate the error. 50.Sh ERRORS 51The 52.Fn pthread_rwlock_destroy 53function will fail if: 54.Bl -tag -width Er 55.It Bq Er EPERM 56The caller does not have the privilege to perform the operation. 57.El 58.Pp 59The 60.Fn pthread_rwlock_destroy 61function may fail if: 62.Bl -tag -width Er 63.It Bq Er EBUSY 64The system has detected an attempt to destroy the object referenced by 65.Fa lock 66while it is locked. 67.It Bq Er EINVAL 68The value specified by 69.Fa lock 70is invalid. 71.El 72.Sh SEE ALSO 73.Xr pthread_rwlock_init 3 74.Sh STANDARDS 75The 76.Fn pthread_rwlock_destroy 77function is expected to conform to 78.St -susv2 . 79.Sh HISTORY 80The 81.Fn pthread_rwlock_destroy 82function first appeared in 83.Fx 3.0 . 84