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.Sh SYNOPSIS 39.Fd #include <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 . 47FreeBSD's implementation of conditions does not support any non-default 48attributes, so these functions are not very useful, though they are required to 49to be present by 50.Tn POSIX . 51.Pp 52The 53.Fn pthread_condattr_init 54function initializes a condition attribute object with the default attributes. 55.Pp 56The 57.Fn pthread_condattr_destroy 58function destroys a condition attribute object. 59.Sh RETURN VALUES 60If successful, these functions return 0. 61Otherwise, an error number is returned to indicate the error. 62.Sh ERRORS 63.Fn pthread_condattr_init 64will fail if: 65.Bl -tag -width Er 66.It Bq Er ENOMEM 67Out of memory. 68.El 69.Pp 70.Fn pthread_condattr_destroy 71will fail if: 72.Bl -tag -width Er 73.It Bq Er EINVAL 74Invalid value for 75.Fa attr . 76.Sh SEE ALSO 77.Xr pthread_cond_init 3 78.Sh STANDARDS 79.Fn pthread_condattr_init 80and 81.Fn pthread_condattr_destroy 82conform to 83.St -iso9945-1 84