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 libc_r 38.Lb libpthread 39.Lb libthr 40.Sh SYNOPSIS 41.In pthread.h 42.Ft int 43.Fn pthread_condattr_init "pthread_condattr_t *attr" 44.Ft int 45.Fn pthread_condattr_destroy "pthread_condattr_t *attr" 46.Sh DESCRIPTION 47Condition attribute objects are used to specify parameters to 48.Fn pthread_cond_init . 49.Fx Ns 's 50implementation of conditions does not support any non-default 51attributes, so these functions are not very useful, though they are required 52to be present by 53.Tn POSIX . 54.Pp 55The 56.Fn pthread_condattr_init 57function initializes a condition attribute object with the default attributes. 58.Pp 59The 60.Fn pthread_condattr_destroy 61function destroys a condition attribute object. 62.Sh RETURN VALUES 63If successful, these functions return 0. 64Otherwise, an error number is returned to indicate the error. 65.Sh ERRORS 66The 67.Fn pthread_condattr_init 68function will fail if: 69.Bl -tag -width Er 70.It Bq Er ENOMEM 71Out of memory. 72.El 73.Pp 74The 75.Fn pthread_condattr_destroy 76function will fail if: 77.Bl -tag -width Er 78.It Bq Er EINVAL 79Invalid value for 80.Fa attr . 81.El 82.Sh SEE ALSO 83.Xr pthread_cond_init 3 84.Sh STANDARDS 85The 86.Fn pthread_condattr_init 87and 88.Fn pthread_condattr_destroy 89functions conform to 90.St -p1003.1-96 91