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1.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>.
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28.\" $FreeBSD: src/lib/libc_r/man/pthread_condattr.3,v 1.9 2001/10/01 16:09:09 ru Exp $
29.Dd April 28, 2000
30.Dt PTHREAD_CONDATTR 3
31.Os
32.Sh NAME
33.Nm pthread_condattr_destroy ,
34.Nm pthread_condattr_init
35.Nd condition attribute operations
36.Sh SYNOPSIS
37.In pthread.h
38.Ft int
39.Fo pthread_condattr_destroy
40.Fa "pthread_condattr_t *attr"
41.Fc
42.Ft int
43.Fo pthread_condattr_init
44.Fa "pthread_condattr_t *attr"
45.Fc
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 to
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
66.Fn pthread_condattr_destroy
67will fail if:
68.Bl -tag -width Er
69.It Bq Er EINVAL
70Invalid value for
71.Fa attr .
72.El
73.Pp
74.Fn pthread_condattr_init
75will fail if:
76.Bl -tag -width Er
77.It Bq Er ENOMEM
78Out of memory.
79.El
80.Sh SEE ALSO
81.Xr pthread_cond_init 3
82.Sh STANDARDS
83.Fn pthread_condattr_init
84and
85.Fn pthread_condattr_destroy
86conform to
87.St -p1003.1-96