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.\" $FreeBSD: src/share/man/man3/pthread_condattr.3,v 1.15 2007/10/22 10:08:00 ru Exp $
.\" $DragonFly: src/lib/libc_r/man/pthread_condattr.3,v 1.3 2004/03/11 12:28:51 hmp Exp $
.Dd July 10, 2009
.Dt PTHREAD_CONDATTR 3
.Os
.Sh NAME
.Nm pthread_condattr_init ,
.Nm pthread_condattr_destroy
.Nd condition attribute operations
.Sh LIBRARY
.Lb libpthread
.Sh SYNOPSIS
.In pthread.h
.Ft int
.Fn pthread_condattr_init "pthread_condattr_t *attr"
.Ft int
.Fn pthread_condattr_destroy "pthread_condattr_t *attr"
.Sh DESCRIPTION
Condition attribute objects are used to specify parameters to
.Fn pthread_cond_init .
.Dx Ns 's
implementation of conditions does not support any non-default
attributes, so these functions are not very useful, though they are required
to be present by
.Tn POSIX .
.Pp
The
.Fn pthread_condattr_init
function initializes a condition attribute object with the default attributes.
.Pp
The
.Fn pthread_condattr_destroy
function destroys a condition attribute object.
.Sh RETURN VALUES
If successful, these functions return 0.
Otherwise, an error number is returned to indicate the error.
.Sh ERRORS
The
.Fn pthread_condattr_init
function will fail if:
.Bl -tag -width Er
.It Bq Er ENOMEM
Out of memory.
.El
.Pp
The
.Fn pthread_condattr_destroy
function will fail if:
.Bl -tag -width Er
.It Bq Er EINVAL
Invalid value for
.Fa attr .
.El
.Sh SEE ALSO
.Xr pthread_cond_init 3
.Sh STANDARDS
The
.Fn pthread_condattr_init
and
.Fn pthread_condattr_destroy
functions conform to
.St -p1003.1-96 .