summaryrefslogtreecommitdiff
path: root/tests/mutex6r.c
blob: 552f3944c58d25071b7fbaf76f6b4c24fa25fdb0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
/* 
 * mutex6r.c
 *
 *
 * --------------------------------------------------------------------------
 *
 *      Pthreads-win32 - POSIX Threads Library for Win32
 *      Copyright(C) 1998 John E. Bossom
 *      Copyright(C) 1999,2005 Pthreads-win32 contributors
 * 
 *      Contact Email: rpj@callisto.canberra.edu.au
 * 
 *      The current list of contributors is contained
 *      in the file CONTRIBUTORS included with the source
 *      code distribution. The list can also be seen at the
 *      following World Wide Web location:
 *      http://sources.redhat.com/pthreads-win32/contributors.html
 * 
 *      This library is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU Lesser General Public
 *      License as published by the Free Software Foundation; either
 *      version 2 of the License, or (at your option) any later version.
 * 
 *      This library is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *      Lesser General Public License for more details.
 * 
 *      You should have received a copy of the GNU Lesser General Public
 *      License along with this library in the file COPYING.LIB;
 *      if not, write to the Free Software Foundation, Inc.,
 *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 *
 * --------------------------------------------------------------------------
 *
 * Tests PTHREAD_MUTEX_RECURSIVE mutex type.
 * Thread locks mutex twice (recursive lock).
 * Both locks and unlocks should succeed.
 *
 * Depends on API functions: 
 *      pthread_create()
 *      pthread_join()
 *      pthread_mutexattr_init()
 *      pthread_mutexattr_destroy()
 *      pthread_mutexattr_settype()
 *      pthread_mutexattr_gettype()
 *      pthread_mutex_init()
 *      pthread_mutex_destroy()
 *	pthread_mutex_lock()
 *	pthread_mutex_unlock()
 */

#include "test.h"

static int lockCount = 0;

static pthread_mutex_t mutex;
static pthread_mutexattr_t mxAttr;

void * locker(void * arg)
{
  assert(pthread_mutex_lock(&mutex) == 0);
  lockCount++;
  assert(pthread_mutex_lock(&mutex) == 0);
  lockCount++;
  assert(pthread_mutex_unlock(&mutex) == 0);
  assert(pthread_mutex_unlock(&mutex) == 0);

  return (void *) 555;
}
 
int
main()
{
  pthread_t t;
  void* result = (void*)0;
  int mxType = -1;

  assert(pthread_mutexattr_init(&mxAttr) == 0);
  assert(pthread_mutexattr_settype(&mxAttr, PTHREAD_MUTEX_RECURSIVE) == 0);
  assert(pthread_mutexattr_gettype(&mxAttr, &mxType) == 0);
  assert(mxType == PTHREAD_MUTEX_RECURSIVE);

  assert(pthread_mutex_init(&mutex, &mxAttr) == 0);

  assert(pthread_create(&t, NULL, locker, NULL) == 0);

  assert(pthread_join(t, &result) == 0);
  assert((int)(size_t)result == 555);

  assert(lockCount == 2);

  assert(pthread_mutex_destroy(&mutex) == 0);
  assert(pthread_mutexattr_destroy(&mxAttr) == 0);

  exit(0);

  /* Never reached */
  return 0;
}