1 /*
2 * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 *
12 * You should have received a copy of the GNU General Public License along
13 * with this program; if not, write the Free Software Foundation, Inc.,
14 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
15 *
16 */
17 /**********************************************************
18 *
19 * TEST IDENTIFIER : sched_get_priority_max01
20 *
21 * EXECUTED BY : anyone
22 *
23 * TEST TITLE : Basic test for sched_get_priority_max(2)
24 *
25 * TEST CASE TOTAL : 3
26 *
27 * AUTHOR : Saji Kumar.V.R <saji.kumar@wipro.com>
28 *
29 * SIGNALS
30 * Uses SIGUSR1 to pause before test if option set.
31 * (See the parse_opts(3) man page).
32 *
33 * DESCRIPTION
34 * This is a Phase I test for the sched_get_priority_max(2) system call.
35 * It is intended to provide a limited exposure of the system call.
36 *
37 * Setup:
38 * Setup signal handling.
39 * Pause for SIGUSR1 if option specified.
40 *
41 * Test:
42 * Loop if the proper options are given.
43 * Execute system call
44 * Check return code, if system call failed (return=-1)
45 * Log the errno and Issue a FAIL message.
46 * Otherwise, Issue a PASS message.
47 *
48 * Cleanup:
49 * Print errno log and/or timing stats if options given
50 *
51 * USAGE: <for command-line>
52 * sched_get_priority_max01 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f]
53 * [-p]
54 * where, -c n : Run n copies concurrently.
55 * -e : Turn on errno logging.
56 * -h : Show help screen
57 * -f : Turn off functional testing
58 * -i n : Execute test n times.
59 * -I x : Execute test for x seconds.
60 * -p : Pause for SIGUSR1 before starting
61 * -P x : Pause for x seconds between iterations.
62 * -t : Turn on syscall timing.
63 *
64 ****************************************************************/
65
66 #include <errno.h>
67 #include <sched.h>
68 #include "test.h"
69
70 static void setup();
71 static void cleanup();
72
73 char *TCID = "sched_get_priority_max01";
74
75 static struct test_case_t {
76 char *desc;
77 int policy;
78 int retval;
79 } test_cases[] = {
80 {
81 "Test for SCHED_OTHER", SCHED_OTHER, 0}, {
82 "Test for SCHED_FIFO", SCHED_FIFO, 99}, {
83 "Test for SCHED_RR", SCHED_RR, 99}
84 };
85
86 int TST_TOTAL = sizeof(test_cases) / sizeof(test_cases[0]);
87
main(int ac,char ** av)88 int main(int ac, char **av)
89 {
90
91 int lc, ind;
92
93 tst_parse_opts(ac, av, NULL, NULL);
94
95 setup();
96
97 for (lc = 0; TEST_LOOPING(lc); lc++) {
98
99 tst_count = 0;
100
101 for (ind = 0; ind < TST_TOTAL; ind++) {
102 /*
103 * Call sched_get_priority_max(2)
104 */
105 TEST(sched_get_priority_max(test_cases[ind].policy));
106
107 if (TEST_RETURN == test_cases[ind].retval) {
108 tst_resm(TPASS, "%s Passed",
109 test_cases[ind].desc);
110 } else {
111 tst_resm(TFAIL | TTERRNO, "%s Failed,"
112 "sched_get_priority_max() returned %ld",
113 test_cases[ind].desc, TEST_RETURN);
114 }
115 }
116 }
117
118 /* cleanup and exit */
119 cleanup();
120
121 tst_exit();
122
123 }
124
125 /* setup() - performs all ONE TIME setup for this test */
setup(void)126 void setup(void)
127 {
128
129 tst_sig(NOFORK, DEF_HANDLER, cleanup);
130
131 TEST_PAUSE;
132
133 }
134
135 /*
136 *cleanup() - performs all ONE TIME cleanup for this test at
137 * completion or premature exit.
138 */
cleanup(void)139 void cleanup(void)
140 {
141
142 }
143