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Contents of /trunk/3rdparty/w32pthreads/pthread_equal.c

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Revision 31 - (show annotations) (download)
Tue Sep 7 03:24:11 2010 UTC (9 years, 11 months ago) by william
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committing r3113 initial commit again...
1 /*
2 * pthread_equal.c
3 *
4 * Description:
5 * This translation unit implements miscellaneous thread functions.
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 "ptw32pch.h"
38
39
40 int
41 pthread_equal (pthread_t t1, pthread_t t2)
42 /*
43 * ------------------------------------------------------
44 * DOCPUBLIC
45 * This function returns nonzero if t1 and t2 are equal, else
46 * returns nonzero
47 *
48 * PARAMETERS
49 * t1,
50 * t2
51 * thread IDs
52 *
53 *
54 * DESCRIPTION
55 * This function returns nonzero if t1 and t2 are equal, else
56 * returns zero.
57 *
58 * RESULTS
59 * non-zero if t1 and t2 refer to the same thread,
60 * 0 t1 and t2 do not refer to the same thread
61 *
62 * ------------------------------------------------------
63 */
64 {
65 int result;
66
67 /*
68 * We also accept NULL == NULL - treating NULL as a thread
69 * for this special case, because there is no error that we can return.
70 */
71 result = ( t1.p == t2.p && t1.x == t2.x );
72
73 return (result);
74
75 } /* pthread_equal */

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