1 /*
2 * count1.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 * Description:
37 * Test some basic assertions about the number of threads at runtime.
38 */
39
40 #include "test.h"
41
42 #define NUMTHREADS (30)
43
44 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
45 static pthread_t threads[NUMTHREADS];
46 static unsigned numThreads = 0;
47
48 void *
myfunc(void * arg)49 myfunc(void *arg)
50 {
51 pthread_mutex_lock(&lock);
52 numThreads++;
53 pthread_mutex_unlock(&lock);
54
55 Sleep(1000);
56 return 0;
57 }
58 int
main()59 main()
60 {
61 int i;
62 int maxThreads = sizeof(threads) / sizeof(pthread_t);
63
64 /*
65 * Spawn NUMTHREADS threads. Each thread should increment the
66 * numThreads variable, sleep for one second.
67 */
68 for (i = 0; i < maxThreads; i++)
69 {
70 assert(pthread_create(&threads[i], NULL, myfunc, 0) == 0);
71 }
72
73 /*
74 * Wait for all the threads to exit.
75 */
76 for (i = 0; i < maxThreads; i++)
77 {
78 assert(pthread_join(threads[i], NULL) == 0);
79 }
80
81 /*
82 * Check the number of threads created.
83 */
84 assert((int) numThreads == maxThreads);
85
86 /*
87 * Success.
88 */
89 return 0;
90 }
91