1 /*
2 * mutex7n.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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
33 *
34 * --------------------------------------------------------------------------
35 *
36 * Tests PTHREAD_MUTEX_NORMAL mutex type.
37 * Thread locks then trylocks mutex (attempted recursive lock).
38 * The thread should lock first time and EBUSY second time.
39 *
40 * Depends on API functions:
41 * pthread_create()
42 * pthread_mutexattr_init()
43 * pthread_mutexattr_settype()
44 * pthread_mutexattr_gettype()
45 * pthread_mutex_init()
46 * pthread_mutex_lock()
47 * pthread_mutex_unlock()
48 */
49
50 #include "test.h"
51
52 static int lockCount;
53
54 static pthread_mutex_t mutex;
55 static pthread_mutexattr_t mxAttr;
56
locker(void * arg)57 void * locker(void * arg)
58 {
59 assert(pthread_mutex_lock(&mutex) == 0);
60 lockCount++;
61 assert(pthread_mutex_trylock(&mutex) == EBUSY);
62 lockCount++;
63 assert(pthread_mutex_unlock(&mutex) == 0);
64
65 return (void *) 555;
66 }
67
68 int
main()69 main()
70 {
71 pthread_t t;
72 int mxType = -1;
73
74 assert(pthread_mutexattr_init(&mxAttr) == 0);
75
76 BEGIN_MUTEX_STALLED_ROBUST(mxAttr)
77
78 lockCount = 0;
79 assert(pthread_mutexattr_settype(&mxAttr, PTHREAD_MUTEX_NORMAL) == 0);
80 assert(pthread_mutexattr_gettype(&mxAttr, &mxType) == 0);
81 assert(mxType == PTHREAD_MUTEX_NORMAL);
82
83 assert(pthread_mutex_init(&mutex, &mxAttr) == 0);
84
85 assert(pthread_create(&t, NULL, locker, NULL) == 0);
86
87 Sleep(100);
88
89 assert(lockCount == 2);
90
91 END_MUTEX_STALLED_ROBUST(mxAttr)
92
93 assert(pthread_mutexattr_destroy(&mxAttr) == 0);
94
95 exit(0);
96
97 /* Never reached */
98 return 0;
99 }
100
101