1 /*
2 * pthread_attr_destroy.c
3 *
4 * Description:
5 * This translation unit implements operations on thread attribute objects.
6 *
7 * --------------------------------------------------------------------------
8 *
9 * Pthreads-win32 - POSIX Threads Library for Win32
10 * Copyright(C) 1998 John E. Bossom
11 * Copyright(C) 1999,2005 Pthreads-win32 contributors
12 *
13 * Contact Email: rpj@callisto.canberra.edu.au
14 *
15 * The current list of contributors is contained
16 * in the file CONTRIBUTORS included with the source
17 * code distribution. The list can also be seen at the
18 * following World Wide Web location:
19 * http://sources.redhat.com/pthreads-win32/contributors.html
20 *
21 * This library is free software; you can redistribute it and/or
22 * modify it under the terms of the GNU Lesser General Public
23 * License as published by the Free Software Foundation; either
24 * version 2 of the License, or (at your option) any later version.
25 *
26 * This library is distributed in the hope that it will be useful,
27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
29 * Lesser General Public License for more details.
30 *
31 * You should have received a copy of the GNU Lesser General Public
32 * License along with this library in the file COPYING.LIB;
33 * if not, write to the Free Software Foundation, Inc.,
34 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
35 */
36
37 #include "pthread.h"
38 #include "implement.h"
39
40
41 int
pthread_attr_destroy(pthread_attr_t * attr)42 pthread_attr_destroy (pthread_attr_t * attr)
43 /*
44 * ------------------------------------------------------
45 * DOCPUBLIC
46 * Destroys a thread attributes object.
47 *
48 * PARAMETERS
49 * attr
50 * pointer to an instance of pthread_attr_t
51 *
52 *
53 * DESCRIPTION
54 * Destroys a thread attributes object.
55 *
56 * NOTES:
57 * 1) Does not affect threads created with 'attr'.
58 *
59 * RESULTS
60 * 0 successfully destroyed attr,
61 * EINVAL 'attr' is invalid.
62 *
63 * ------------------------------------------------------
64 */
65 {
66 if (ptw32_is_attr (attr) != 0)
67 {
68 return EINVAL;
69 }
70
71 /*
72 * Set the attribute object to a specific invalid value.
73 */
74 (*attr)->valid = 0;
75 free (*attr);
76 *attr = NULL;
77
78 return 0;
79 }
80