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
47void 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
54int 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 */
72int 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