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 : fdatasync01
20 *
21 * EXECUTED BY : Any user
22 *
23 * TEST TITLE : Basic test for fdatasync(2)
24 *
25 * TEST CASE TOTAL : 1
26 *
27 * AUTHOR : Madhu T L <madhu.tarikere@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 fdatasync(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 * Create a temp directory and cd to it
41 * Initialize filename and open it in write mode for each child process.
42 *
43 * Test:
44 * Loop if the proper options are given.
45 * Execute system call
46 * Check return code, if system call failed (return=-1)
47 * Issue FAIL message with errno.
48 * Otherwise, Issue PASS message.
49 *
50 * Cleanup:
51 * Print errno log and/or timing stats if options given
52 * Remove temporary directory and all files in it.
53 *
54 * USAGE: <for command-line>
55 * fdatasync01 [-c n] [-e] [-f] [-h] [-i n] [-I x] [-p] [-P x] [-t]
56 * where, -c n : Run n copies concurrently.
57 * -e : Turn on errno logging.
58 * -f : Turn off functional testing
59 * -h : Show help screen
60 * -i n : Execute test n times.
61 * -I x : Execute test for x seconds.
62 * -p : Pause for SIGUSR1 before starting
63 * -P x : Pause for x seconds between iterations.
64 * -t : Turn on syscall timing.
65 *
66 ****************************************************************/
67 #include <errno.h>
68 #include <sys/types.h>
69 #include <sys/stat.h>
70 #include <fcntl.h>
71 #include <unistd.h>
72 #include "test.h"
73
74 static int fd;
75 static char filename[30];
76 static void setup(void);
77 static void cleanup(void);
78
79 char *TCID = "fdatasync01";
80 int TST_TOTAL = 1;
81
main(int argc,char ** argv)82 int main(int argc, char **argv)
83 {
84 int lc;
85
86 tst_parse_opts(argc, argv, NULL, NULL);
87
88 setup();
89
90 for (lc = 0; TEST_LOOPING(lc); lc++) {
91
92 /* reset tst_count in case we are looping */
93 tst_count = 0;
94
95 /* Test the system call */
96 TEST(fdatasync(fd));
97
98 /* check return code */
99 if (TEST_RETURN == -1) {
100 tst_resm(TFAIL, "fdatasync() failed, errno=%d : %s",
101 TEST_ERRNO, strerror(TEST_ERRNO));
102 } else {
103 /* No Functional verification yet */
104 tst_resm(TPASS, "fdatasync() successful");
105 }
106 }
107
108 /* perform global cleanup and exit */
109 cleanup();
110
111 tst_exit();
112
113 }
114
115 /* setup() - performs all ONE TIME setup for this test */
setup(void)116 void setup(void)
117 {
118
119 tst_sig(NOFORK, DEF_HANDLER, cleanup);
120
121 /* Pause if that option was specified
122 * TEST_PAUSE contains the code to fork the test with the -c option.
123 */
124 TEST_PAUSE;
125
126 tst_tmpdir();
127
128 /* Initialize unique filename for each child process */
129 if (sprintf(filename, "fdatasync_%d", getpid()) <= 0) {
130 tst_brkm(TBROK, cleanup, "Failed to initialize filename");
131 }
132 if ((fd = open(filename, O_CREAT | O_WRONLY, 0777)) == -1) { //mode must be specified when O_CREATE is in the flag
133 tst_brkm(TBROK, cleanup, "open() failed");
134 }
135 if ((write(fd, filename, strlen(filename) + 1)) == -1) {
136 tst_brkm(TBROK, cleanup, "write() failed");
137 }
138 }
139
140 /*
141 * cleanup()
142 * performs all ONE TIME cleanup for this test at
143 * completion or premature exit
144 */
cleanup(void)145 void cleanup(void)
146 {
147 /*
148 * print timing stats if that option was specified.
149 * print errno log if that option was specified.
150 */
151 close(fd);
152
153 tst_rmdir();
154
155 }
156