1.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>. 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(s), this list of conditions and the following disclaimer as 9.\" the first lines of this file unmodified other than the possible 10.\" addition of one or more copyright notices. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice(s), this list of conditions and the following disclaimer in 13.\" the documentation and/or other materials provided with the 14.\" distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 17.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE 20.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 23.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 25.\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 26.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27.\" 28.\" $FreeBSD: src/lib/libc_r/man/pthread_condattr.3,v 1.2.2.8 2001/12/17 10:08:26 ru Exp $ 29.\" $DragonFly: src/lib/libc_r/man/pthread_condattr.3,v 1.3 2004/03/11 12:28:51 hmp Exp $ 30.Dd April 15, 2009 31.Dt PTHREAD_CONDATTR 3 32.Os 33.Sh NAME 34.Nm pthread_condattr_init , 35.Nm pthread_condattr_destroy 36.Nd condition attribute operations 37.Sh LIBRARY 38.Lb libpthread 39.Sh SYNOPSIS 40.In pthread.h 41.Ft int 42.Fn pthread_condattr_init "pthread_condattr_t *attr" 43.Ft int 44.Fn pthread_condattr_destroy "pthread_condattr_t *attr" 45.Sh DESCRIPTION 46Condition attribute objects are used to specify parameters to 47.Fn pthread_cond_init . 48.Dx Ns 's 49implementation of conditions does not support any non-default 50attributes, so these functions are not very useful, though they are required to 51to be present by 52.Tn POSIX . 53.Pp 54The 55.Fn pthread_condattr_init 56function initializes a condition attribute object with the default attributes. 57.Pp 58The 59.Fn pthread_condattr_destroy 60function destroys a condition attribute object. 61.Sh RETURN VALUES 62If successful, these functions return 0. 63Otherwise, an error number is returned to indicate the error. 64.Sh ERRORS 65.Fn pthread_condattr_init 66will fail if: 67.Bl -tag -width Er 68.It Bq Er ENOMEM 69Out of memory. 70.El 71.Pp 72.Fn pthread_condattr_destroy 73will fail if: 74.Bl -tag -width Er 75.It Bq Er EINVAL 76Invalid value for 77.Fa attr . 78.El 79.Sh SEE ALSO 80.Xr pthread_cond_init 3 81.Sh STANDARDS 82.Fn pthread_condattr_init 83and 84.Fn pthread_condattr_destroy 85conform to 86.St -p1003.1-96 87