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 libc_r 35.Lb libpthread 36.Lb libthr 37.Sh SYNOPSIS 38.In pthread.h 39.Ft int 40.Fn pthread_rwlock_destroy "pthread_rwlock_t *lock" 41.Sh DESCRIPTION 42The 43.Fn pthread_rwlock_destroy 44function is used to destroy a read/write lock previously created with 45.Fn pthread_rwlock_init . 46.Sh RETURN VALUES 47If successful, the 48.Fn pthread_rwlock_destroy 49function will return zero. 50Otherwise an error number will be returned 51to indicate the error. 52.Sh ERRORS 53The 54.Fn pthread_rwlock_destroy 55function will fail if: 56.Bl -tag -width Er 57.It Bq Er EPERM 58The caller does not have the privilege to perform the operation. 59.El 60.Pp 61The 62.Fn pthread_rwlock_destroy 63function may fail if: 64.Bl -tag -width Er 65.It Bq Er EBUSY 66The system has detected an attempt to destroy the object referenced by 67.Fa lock 68while it is locked. 69.It Bq Er EINVAL 70The value specified by 71.Fa lock 72is invalid. 73.El 74.Sh SEE ALSO 75.Xr pthread_rwlock_init 3 76.Sh STANDARDS 77The 78.Fn pthread_rwlock_destroy 79function is expected to conform to 80.St -susv2 . 81.Sh HISTORY 82The 83.Fn pthread_rwlock_destroy 84function first appeared in 85.Fx 3.0 . 86