1 /*
2 * rwlock5_t.c
3 *
4 *
5 * --------------------------------------------------------------------------
6 *
7 * Pthreads-win32 - POSIX Threads Library for Win32
8 * Copyright(C) 1998 John E. Bossom
9 * Copyright(C) 1999,2005 Pthreads-win32 contributors
10 *
11 * Contact Email: rpj@callisto.canberra.edu.au
12 *
13 * The current list of contributors is contained
14 * in the file CONTRIBUTORS included with the source
15 * code distribution. The list can also be seen at the
16 * following World Wide Web location:
17 * http://sources.redhat.com/pthreads-win32/contributors.html
18 *
19 * This library is free software; you can redistribute it and/or
20 * modify it under the terms of the GNU Lesser General Public
21 * License as published by the Free Software Foundation; either
22 * version 2 of the License, or (at your option) any later version.
23 *
24 * This library is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 * Lesser General Public License for more details.
28 *
29 * You should have received a copy of the GNU Lesser General Public
30 * License along with this library in the file COPYING.LIB;
31 * if not, write to the Free Software Foundation, Inc.,
32 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
33 *
34 * --------------------------------------------------------------------------
35 *
36 * Declare a static rwlock object, timed-rdlock it, tryrdlock it,
37 * and then unlock it again.
38 *
39 * Depends on API functions:
40 * pthread_rwlock_timedrdlock()
41 * pthread_rwlock_tryrdlock()
42 * pthread_rwlock_unlock()
43 */
44
45 #include "test.h"
46 #include <sys/timeb.h>
47
48 pthread_rwlock_t rwlock1 = PTHREAD_RWLOCK_INITIALIZER;
49
50 static int washere = 0;
51
func(void * arg)52 void * func(void * arg)
53 {
54 assert(pthread_rwlock_tryrdlock(&rwlock1) == 0);
55
56 assert(pthread_rwlock_unlock(&rwlock1) == 0);
57
58 washere = 1;
59
60 return 0;
61 }
62
63 int
main()64 main()
65 {
66 pthread_t t;
67 struct timespec abstime = { 0, 0 };
68 struct _timeb currSysTime;
69 const DWORD NANOSEC_PER_MILLISEC = 1000000;
70
71 _ftime(&currSysTime);
72
73 abstime.tv_sec = currSysTime.time;
74 abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm;
75
76 abstime.tv_sec += 1;
77
78 assert(pthread_rwlock_timedrdlock(&rwlock1, &abstime) == 0);
79
80 assert(pthread_create(&t, NULL, func, NULL) == 0);
81
82 Sleep(2000);
83
84 assert(pthread_rwlock_unlock(&rwlock1) == 0);
85
86 assert(washere == 1);
87
88 return 0;
89 }
90