1 /*
2 * File: condvar3_3.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 * Test Synopsis:
37 * - Test timeouts and lost signals on a CV.
38 *
39 * Test Method (Validation or Falsification):
40 * - Validation
41 *
42 * Requirements Tested:
43 * -
44 *
45 * Features Tested:
46 * -
47 *
48 * Cases Tested:
49 * -
50 *
51 * Description:
52 * -
53 *
54 * Environment:
55 * -
56 *
57 * Input:
58 * - None.
59 *
60 * Output:
61 * - File name, Line number, and failed expression on failure.
62 * - No output on success.
63 *
64 * Assumptions:
65 * -
66 *
67 * Pass Criteria:
68 * - pthread_cond_timedwait returns ETIMEDOUT.
69 * - Process returns zero exit status.
70 *
71 * Fail Criteria:
72 * - pthread_cond_timedwait does not return ETIMEDOUT.
73 * - Process returns non-zero exit status.
74 */
75
76 /* Timur Aydin (taydin@snet.net) */
77
78 #include "test.h"
79
80 #include <sys/timeb.h>
81
82 pthread_cond_t cnd;
83 pthread_mutex_t mtx;
84
main()85 int main()
86 {
87 int rc;
88
89 struct timespec abstime = { 0, 0 };
90 struct _timeb currSysTime;
91 const DWORD NANOSEC_PER_MILLISEC = 1000000;
92
93 assert(pthread_cond_init(&cnd, 0) == 0);
94 assert(pthread_mutex_init(&mtx, 0) == 0);
95
96 /* get current system time */
97 _ftime(&currSysTime);
98
99 abstime.tv_sec = currSysTime.time;
100 abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm;
101 abstime.tv_sec += 1;
102
103 /* Here pthread_cond_timedwait should time out after one second. */
104
105 assert(pthread_mutex_lock(&mtx) == 0);
106
107 assert((rc = pthread_cond_timedwait(&cnd, &mtx, &abstime)) == ETIMEDOUT);
108
109 assert(pthread_mutex_unlock(&mtx) == 0);
110
111 /* Here, the condition variable is signaled, but there are no
112 threads waiting on it. The signal should be lost and
113 the next pthread_cond_timedwait should time out too. */
114
115 // assert(pthread_mutex_lock(&mtx) == 0);
116
117 assert((rc = pthread_cond_signal(&cnd)) == 0);
118
119 // assert(pthread_mutex_unlock(&mtx) == 0);
120
121 assert(pthread_mutex_lock(&mtx) == 0);
122
123 abstime.tv_sec = currSysTime.time;
124 abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm;
125 abstime.tv_sec += 1;
126
127 assert((rc = pthread_cond_timedwait(&cnd, &mtx, &abstime)) == ETIMEDOUT);
128
129 assert(pthread_mutex_unlock(&mtx) == 0);
130
131 return 0;
132 }
133