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.\" $FreeBSD$ 29.Dd April 28, 2000 30.Dt PTHREAD_CONDATTR 3 31.Os 32.Sh NAME 33.Nm pthread_condattr_init , 34.Nm pthread_condattr_destroy 35.Nd condition attribute operations 36.Sh LIBRARY 37.Lb libpthread 38.Sh SYNOPSIS 39.In pthread.h 40.Ft int 41.Fn pthread_condattr_init "pthread_condattr_t *attr" 42.Ft int 43.Fn pthread_condattr_destroy "pthread_condattr_t *attr" 44.Sh DESCRIPTION 45Condition attribute objects are used to specify parameters to 46.Fn pthread_cond_init . 47.Fx Ns 's 48implementation of conditions does not support any non-default 49attributes, so these functions are not very useful, though they are required 50to be present by 51.Tn POSIX . 52.Pp 53The 54.Fn pthread_condattr_init 55function initializes a condition attribute object with the default attributes. 56.Pp 57The 58.Fn pthread_condattr_destroy 59function destroys a condition attribute object. 60.Sh RETURN VALUES 61If successful, these functions return 0. 62Otherwise, an error number is returned to indicate the error. 63.Sh ERRORS 64The 65.Fn pthread_condattr_init 66function will fail if: 67.Bl -tag -width Er 68.It Bq Er ENOMEM 69Out of memory. 70.El 71.Pp 72The 73.Fn pthread_condattr_destroy 74function will fail if: 75.Bl -tag -width Er 76.It Bq Er EINVAL 77Invalid value for 78.Fa attr . 79.El 80.Sh SEE ALSO 81.Xr pthread_cond_init 3 82.Sh STANDARDS 83The 84.Fn pthread_condattr_init 85and 86.Fn pthread_condattr_destroy 87functions conform to 88.St -p1003.1-96 89