1/*
2 *  This program is free software; you can redistribute it and/or modify
3 *  it under the terms of the GNU General Public License version 2.
4 *
5 *  This program is distributed in the hope that it will be useful,
6 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
7 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
8 *  GNU General Public License for more details.
9 *
10 *
11 * Test that sched_setscheduler() sets errno == EINVAL when
12 * the sched_ss_max_repl is not within the inclusive range [1,SS_REPL_MAX]
13 *
14 * Test the values 0 and SS_REPL_MAX+1.
15 *
16 * @pt:SS
17 */
18
19#include <errno.h>
20#include <sched.h>
21#include <stdio.h>
22#include <unistd.h>
23#include "posixtest.h"
24
25#if defined(_POSIX_SPORADIC_SERVER)&&(_POSIX_SPORADIC_SERVER != -1)
26
27int main(void)
28{
29	int policy, result;
30	int result_code = PTS_PASS;
31	struct sched_param param;
32
33	if (sched_getparam(0, &param) == -1) {
34		perror("An error occurs when calling sched_getparam()");
35		return PTS_UNRESOLVED;
36	}
37
38	param.sched_priority = sched_get_priority_max(SCHED_SPORADIC);
39
40	/* test when sched_ss_max_repl < 1 */
41	param.sched_ss_max_repl = 0;
42	result = sched_setscheduler(0, SCHED_SPORADIC, &param);
43
44	if (result != -1) {
45		printf
46		    ("The returned code is not -1 when sched_ss_max_repl < 1.\n");
47		result_code = PTS_FAIL;
48	} else if (errno == EPERM) {
49		printf
50		    ("This process does not have the permission to set its own scheduling policy.\nTry to launch this test as root.\n");
51		result_code = PTS_UNRESOLVED;
52	} else if (errno != EINVAL) {
53		perror("Unknow error when testing sched_ss_max_repl < 1");
54		result_code = PTS_FAIL;
55	}
56
57	/* test when sched_ss_max_repl > SS_REPL_MAX */
58	param.sched_ss_max_repl = SS_REPL_MAX + 1;
59	result = sched_setscheduler(0, SCHED_SPORADIC, &param);
60
61	if (result == -1 && errno == EINVAL) {
62		if (result_code == PTS_PASS) {
63			printf("Test PASSED\n");
64		}
65		return result_code;
66	} else if (result != -1) {
67		printf
68		    ("The returned code is not -1 when sched_ss_max_repl > SS_REPL_MAX.\n");
69		return PTS_FAIL;
70	} else if (errno == EPERM) {
71		if (result_code == PTS_FAIL) {
72			printf
73			    ("This process does not have the permission to set its own scheduling parameter.\nTry to launch this test as root.\n");
74			return PTS_FAIL;
75		}
76		return PTS_UNRESOLVED;
77	} else {
78		perror
79		    ("Unknow error when testing sched_ss_max_repl > SS_REPL_MAX");
80		return PTS_FAIL;
81	}
82
83}
84#else
85int main(void)
86{
87	printf("Does not support SS (SPORADIC SERVER)\n");
88	return PTS_UNSUPPORTED;
89}
90
91#endif
92