1 /******************************************************************************
2 *
3 * Copyright © International Business Machines Corp., 2008
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 *
19 * NAME
20 * testpi-6.c
21 *
22 * DESCRIPTION
23 * This testcase verifies if a thread can lock the robust mutex multiple
24 * times.
25 *
26 * USAGE:
27 * Use run_auto.sh script in current directory to build and run test.
28 *
29 * AUTHOR
30 *
31 *
32 * HISTORY
33 * 2010-04-22 Code cleanup by Gowrishankar
34 *
35 *
36 *****************************************************************************/
37
38 #include <stdio.h>
39 #include <pthread.h>
40 #include <string.h>
41 #include <unistd.h>
42 #include <librttest.h>
43
44 pthread_mutex_t child_mutex;
45
child_thread(void * arg)46 void *child_thread(void *arg)
47 {
48 int ret;
49
50 ret = pthread_mutex_lock(&child_mutex);
51 if (ret != 0)
52 printf("child thread: Failed to lock child_mutex: %d\n", ret);
53 else
54 printf("child_thread: got lock\n");
55
56 sleep(2);
57
58 printf("child_thread: Trying to get lock 2nd time\n");
59 ret = pthread_mutex_lock(&child_mutex);
60 if (ret != 0)
61 printf("child thread: Failed to lock child_mutex: %d\n", ret);
62 else
63 printf("child_thread: got lock 2nd time !!\n");
64
65 return NULL;
66 }
67
do_test(int argc,char ** argv)68 int do_test(int argc, char **argv)
69 {
70 pthread_mutexattr_t mutexattr;
71 int retc, robust;
72
73 if (pthread_mutexattr_init(&mutexattr) != 0)
74 printf("Failed to init mutexattr\n");
75
76 if (pthread_mutexattr_setrobust(&mutexattr,
77 PTHREAD_MUTEX_ROBUST) != 0)
78 printf("Can't set robust mutex\n");
79
80 if (pthread_mutexattr_getrobust(&mutexattr, &robust) != 0)
81 printf("Can't get mutexattr protocol\n");
82 else
83 printf("robust in mutexattr is %d\n", robust);
84
85 retc = pthread_mutex_init(&child_mutex, &mutexattr);
86 if (retc != 0)
87 printf("Failed to init mutex: %d\n", retc);
88
89 create_other_thread(child_thread, NULL);
90 join_threads();
91
92 return 0;
93 }
94
95 #include "test-skeleton.c"
96