1 /******************************************************************************
2 *
3 * Copyright © International Business Machines Corp., 2005, 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-0.c
21 *
22 * DESCRIPTION
23 * This testcase checks whether priority inheritance support is present
24 * in the running kernel
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 (gowrishankar.m@in.ibm.com)
34 *
35 *
36 *****************************************************************************/
37
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41 #include <sched.h>
42 #include <pthread.h>
43 #include <sys/types.h>
44 #include <unistd.h>
45 #include <librttest.h>
46
usage(void)47 void usage(void)
48 {
49 rt_help();
50 printf("testpi-0 specific options:\n");
51 printf("testpi-0 doesn't require any commandline options\n");
52 }
53
parse_args(int c,char * v)54 int parse_args(int c, char *v)
55 {
56
57 int handled = 1;
58 switch (c) {
59 case 'h':
60 usage();
61 exit(0);
62 default:
63 handled = 0;
64 break;
65 }
66 return handled;
67 }
68
69 /*
70 * Test pthread creation at different thread priorities.
71 */
main(int argc,char * argv[])72 int main(int argc, char *argv[])
73 {
74 char *pathbuf;
75 size_t n;
76
77 rt_init("h", parse_args, argc, argv);
78
79 n = confstr(_CS_GNU_LIBC_VERSION, NULL, (size_t) 0);
80 pathbuf = malloc(n);
81 if (!pathbuf)
82 abort();
83 confstr(_CS_GNU_LIBC_VERSION, pathbuf, n);
84
85 printf("LIBC_VERSION: %s\n", pathbuf);
86 free(pathbuf);
87
88 n = confstr(_CS_GNU_LIBPTHREAD_VERSION, NULL, (size_t) 0);
89 pathbuf = malloc(n);
90 if (!pathbuf)
91 abort();
92 confstr(_CS_GNU_LIBPTHREAD_VERSION, pathbuf, n);
93
94 printf("LIBPTHREAD_VERSION: %s\n", pathbuf);
95 free(pathbuf);
96
97 if (sysconf(_SC_THREAD_PRIO_INHERIT) == -1)
98 printf("No Prio inheritance support\n");
99
100 printf("Prio inheritance support present\n");
101
102 return 0;
103 }
104