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 the priority remain unchanged when the sched_ss_low_priority
12 * member is not within the inclusive priority range for the sporadic server
13 * policy.
14 *
15 * @pt:SS
16 */
17
18#include <sched.h>
19#include <stdio.h>
20#include <unistd.h>
21#include "posixtest.h"
22
23#if defined(_POSIX_SPORADIC_SERVER)&&(_POSIX_SPORADIC_SERVER != -1)
24
25int main(){
26	int policy, invalid_priority, old_priority;
27	struct sched_param param;
28
29	if(sched_getparam(0, &param) != 0){
30		perror("An error occurs when calling sched_getparam()");
31		return PTS_UNRESOLVED;
32	}
33	old_priority = param.sched_priority;
34
35	policy = sched_getscheduler(0);
36	if(policy == -1){
37		perror("An error occurs when calling sched_getscheduler()");
38		return PTS_UNRESOLVED;
39	} else if(policy != SCHED_SPORADIC){
40		if(sched_setscheduler(0, SCHED_SPORADIC, &param) != 0){
41			perror("An error occurs when calling sched_getparam()");
42			return PTS_UNRESOLVED;
43		}
44	}
45
46
47	invalid_priority = sched_get_priority_max(SCHED_SPORADIC);
48	if(invalid_priority == -1){
49		perror("An error occurs when calling sched_get_priority_max()");
50		return PTS_UNRESOLVED;
51	}
52
53	/* set an invalid priority */
54	invalid_priority++;
55	param.sched_ss_low_priority = invalid_priority;
56	param.sched_priority++;
57	sched_setparam(0,&param);
58
59	if(sched_getparam(0, &param) != 0){
60		perror("An error occurs when calling sched_getparam()");
61		return PTS_UNRESOLVED;
62	}
63
64	if(param.sched_priority == old_priority){
65		printf("Test PASSED\n");
66		return PTS_PASS;
67	} else {
68		printf("The priority have changed.\n");
69		return PTS_FAIL;
70	}
71}
72
73#else
74int main()
75{
76	printf("Does not support SS (SPORADIC SERVER)\n");
77	return PTS_UNSUPPORTED;
78}
79
80#endif
81