1 /*
2 * mutex6es.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 * Tests PTHREAD_MUTEX_ERRORCHECK static mutex type.
37 * Thread locks mutex twice (recursive lock).
38 * This should fail with an EDEADLK error.
39 * The second unlock attempt should fail with an EPERM error.
40 *
41 * Depends on API functions:
42 * pthread_create()
43 * pthread_join()
44 * pthread_mutexattr_init()
45 * pthread_mutexattr_destroy()
46 * pthread_mutexattr_settype()
47 * pthread_mutexattr_gettype()
48 * pthread_mutex_init()
49 * pthread_mutex_destroy()
50 * pthread_mutex_lock()
51 * pthread_mutex_unlock()
52 */
53
54 #include "test.h"
55
56 static int lockCount = 0;
57
58 static pthread_mutex_t mutex = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER;
59
locker(void * arg)60 void * locker(void * arg)
61 {
62 assert(pthread_mutex_lock(&mutex) == 0);
63 lockCount++;
64 assert(pthread_mutex_lock(&mutex) == EDEADLK);
65 lockCount++;
66 assert(pthread_mutex_unlock(&mutex) == 0);
67 assert(pthread_mutex_unlock(&mutex) == EPERM);
68
69 return (void *) 555;
70 }
71
72 int
main()73 main()
74 {
75 pthread_t t;
76 intptr_t result = 0;
77
78 assert(mutex == PTHREAD_ERRORCHECK_MUTEX_INITIALIZER);
79
80 assert(pthread_create(&t, NULL, locker, NULL) == 0);
81
82 assert(pthread_join(t, (void **) &result) == 0);
83 assert(result == 555);
84
85 assert(lockCount == 2);
86
87 assert(pthread_mutex_destroy(&mutex) == 0);
88
89 exit(0);
90
91 /* Never reached */
92 return 0;
93 }
94
95