1 /*
2 * pthread_condattr_init.c
3 *
4 * Description:
5 * This translation unit implements condition variables and their primitives.
6 *
7 *
8 * --------------------------------------------------------------------------
9 *
10 * Pthreads-win32 - POSIX Threads Library for Win32
11 * Copyright(C) 1998 John E. Bossom
12 * Copyright(C) 1999,2005 Pthreads-win32 contributors
13 *
14 * Contact Email: rpj@callisto.canberra.edu.au
15 *
16 * The current list of contributors is contained
17 * in the file CONTRIBUTORS included with the source
18 * code distribution. The list can also be seen at the
19 * following World Wide Web location:
20 * http://sources.redhat.com/pthreads-win32/contributors.html
21 *
22 * This library is free software; you can redistribute it and/or
23 * modify it under the terms of the GNU Lesser General Public
24 * License as published by the Free Software Foundation; either
25 * version 2 of the License, or (at your option) any later version.
26 *
27 * This library is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
30 * Lesser General Public License for more details.
31 *
32 * You should have received a copy of the GNU Lesser General Public
33 * License along with this library in the file COPYING.LIB;
34 * if not, write to the Free Software Foundation, Inc.,
35 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
36 */
37
38 #include "pthread.h"
39 #include "implement.h"
40
41
42 int
pthread_condattr_init(pthread_condattr_t * attr)43 pthread_condattr_init (pthread_condattr_t * attr)
44 /*
45 * ------------------------------------------------------
46 * DOCPUBLIC
47 * Initializes a condition variable attributes object
48 * with default attributes.
49 *
50 * PARAMETERS
51 * attr
52 * pointer to an instance of pthread_condattr_t
53 *
54 *
55 * DESCRIPTION
56 * Initializes a condition variable attributes object
57 * with default attributes.
58 *
59 * NOTES:
60 * 1) Use to define condition variable types
61 * 2) It is up to the application to ensure
62 * that it doesn't re-init an attribute
63 * without destroying it first. Otherwise
64 * a memory leak is created.
65 *
66 * RESULTS
67 * 0 successfully initialized attr,
68 * ENOMEM insufficient memory for attr.
69 *
70 * ------------------------------------------------------
71 */
72 {
73 pthread_condattr_t attr_result;
74 int result = 0;
75
76 attr_result = (pthread_condattr_t) calloc (1, sizeof (*attr_result));
77
78 if (attr_result == NULL)
79 {
80 result = ENOMEM;
81 }
82
83 *attr = attr_result;
84
85 return result;
86
87 } /* pthread_condattr_init */
88