1 /*
2 *
3 * Copyright (c) International Business Machines Corp., 2001
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
20 /*
21 * NAME
22 * setitimer01.c
23 *
24 * DESCRIPTION
25 * setitimer01 - check that a resonable setitimer() call succeeds.
26 *
27 * ALGORITHM
28 * loop if that option was specified
29 * allocate needed space and set up needed values
30 * issue the system call
31 * check the errno value
32 * issue a PASS message if we get zero
33 * otherwise, the tests fails
34 * issue a FAIL message
35 * break any remaining tests
36 * call cleanup
37 *
38 * USAGE: <for command-line>
39 * setitimer01 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
40 * where, -c n : Run n copies concurrently.
41 * -f : Turn off functionality Testing.
42 * -i n : Execute test n times.
43 * -I x : Execute test for x seconds.
44 * -P x : Pause for x seconds between iterations.
45 * -t : Turn on syscall timing.
46 *
47 * HISTORY
48 * 03/2001 - Written by Wayne Boyer
49 *
50 * RESTRICTIONS
51 * none
52 */
53
54 #include "test.h"
55
56 #include <errno.h>
57 #include <sys/time.h>
58
59 void cleanup(void);
60 void setup(void);
61
62 char *TCID = "setitimer01";
63 int TST_TOTAL = 1;
64
65 #define SEC0 0
66 #define SEC1 20
67 #define SEC2 40
68
main(int ac,char ** av)69 int main(int ac, char **av)
70 {
71 int lc;
72 struct itimerval *value, *ovalue;
73
74 tst_parse_opts(ac, av, NULL, NULL);
75
76 setup(); /* global setup */
77
78 /* The following loop checks looping state if -i option given */
79
80 for (lc = 0; TEST_LOOPING(lc); lc++) {
81 /* reset tst_count in case we are looping */
82 tst_count = 0;
83
84 /* allocate some space for the timer structures */
85
86 if ((value = malloc((size_t)sizeof(struct itimerval))) ==
87 NULL) {
88 tst_brkm(TBROK, cleanup, "value malloc failed");
89 }
90
91 if ((ovalue = malloc((size_t)sizeof(struct itimerval))) ==
92 NULL) {
93 tst_brkm(TBROK, cleanup, "ovalue malloc failed");
94 }
95
96 /* set up some reasonable values */
97
98 value->it_value.tv_sec = SEC1;
99 value->it_value.tv_usec = SEC0;
100 value->it_interval.tv_sec = 0;
101 value->it_interval.tv_usec = 0;
102 /*
103 * issue the system call with the TEST() macro
104 * ITIMER_REAL = 0, ITIMER_VIRTUAL = 1 and ITIMER_PROF = 2
105 */
106
107 TEST(setitimer(ITIMER_REAL, value, ovalue));
108
109 if (TEST_RETURN != 0) {
110 tst_resm(TFAIL, "call failed - errno = %d - %s",
111 TEST_ERRNO, strerror(TEST_ERRNO));
112 continue;
113 }
114
115 /*
116 * call setitimer again with new values.
117 * the old values should be stored in ovalue
118 */
119 value->it_value.tv_sec = SEC2;
120 value->it_value.tv_usec = SEC0;
121
122 if ((setitimer(ITIMER_REAL, value, ovalue)) == -1) {
123 tst_brkm(TBROK, cleanup, "second setitimer "
124 "call failed");
125 }
126
127 if (ovalue->it_value.tv_sec <= SEC1) {
128 tst_resm(TPASS, "functionality is correct");
129 } else {
130 tst_brkm(TFAIL, cleanup, "old timer value is "
131 "not equal to expected value");
132 }
133 }
134
135 cleanup();
136 tst_exit();
137 }
138
139 /*
140 * setup() - performs all the ONE TIME setup for this test.
141 */
setup(void)142 void setup(void)
143 {
144
145 tst_sig(NOFORK, DEF_HANDLER, cleanup);
146
147 TEST_PAUSE;
148 }
149
150 /*
151 * cleanup() - performs all the ONE TIME cleanup for this test at completion
152 * or premature exit.
153 */
cleanup(void)154 void cleanup(void)
155 {
156
157 }
158