241 lines
6.5 KiB
C
241 lines
6.5 KiB
C
/*
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*
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* Copyright (c) International Business Machines Corp., 2001
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* Test Name: sync01
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*
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* Test Description:
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* Open a file for write; modify the file, then do a sync().
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* Verify that the data has been written to disk by re-opening the file.
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*
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* Expected Result:
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* sync() alawys returns 0 in Linux. The data written to the file should
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* be updated to the disk.
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*
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* Algorithm:
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* Setup:
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* Setup signal handling.
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* Create temporary directory.
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* Pause for SIGUSR1 if option specified.
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*
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* Test:
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* Loop if the proper options are given.
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* Execute system call
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* Check return code, if system call failed (return=-1)
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* Log the errno and Issue a FAIL message.
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* Otherwise,
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* Verify the Functionality of system call
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* if successful,
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* Issue Functionality-Pass message.
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* Otherwise,
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* Issue Functionality-Fail message.
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* Cleanup:
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* Print errno log and/or timing stats if options given
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* Delete the temporary directory created.
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*
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* Usage: <for command-line>
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* sync01 [-c n] [-f] [-i n] [-I x] [-p x] [-t]
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* where, -c n : Run n copies concurrently.
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* -f : Turn off functionality Testing.
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* -i n : Execute test n times.
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* -I x : Execute test for x seconds.
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* -P x : Pause for x seconds between iterations.
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* -t : Turn on syscall timing.
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*
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* History
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* 07/2001 John George
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* -Ported
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*
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* Restrictions:
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* None.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <signal.h>
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#include <sys/stat.h>
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#include "test.h"
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#include "usctest.h"
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#define TEMP_FILE "temp_file"
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#define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
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char *TCID="sync01"; /* Test program identifier. */
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int TST_TOTAL=1; /* Total number of test cases. */
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extern int Tst_count; /* Test Case counter for tst_* routines */
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char write_buffer[BUFSIZ]; /* buffer used to write data to file*/
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int fildes; /* file descriptor for temporary file */
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void setup(); /* Main setup function of test */
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void cleanup(); /* cleanup function for the test */
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int
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main(int ac, char **av)
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{
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int lc; /* loop counter */
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const char *msg; /* message returned from parse_opts */
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char read_buffer[BUFSIZ]; /* buffer used to read data from file*/
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/* Parse standard options given to run the test. */
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msg = parse_opts(ac, av, (option_t *) NULL, NULL);
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if (msg != (char *) NULL) {
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tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
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/*NOTREACHED*/
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}
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/* Perform global setup for test */
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setup();
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/* Check looping state if -i option given */
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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/* Reset Tst_count in case we are looping. */
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Tst_count=0;
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/*
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* Call sync(2) to commit buffer data to disk.
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*/
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TEST_VOID(sync());
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if (TEST_RETURN == -1) {
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tst_resm(TFAIL, "%s, Failed, errno=%d : %s",
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TCID, TEST_ERRNO, strerror(TEST_ERRNO));
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} else {
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/*
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* Perform functional verification if test
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* executed without (-f) option.
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*/
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if (STD_FUNCTIONAL_TEST) {
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/* Set the file ptr to b'nning of file */
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if (lseek(fildes, 0, SEEK_SET) < 0) {
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tst_brkm(TFAIL, cleanup, "lseek() "
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"failed on %s, error=%d",
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TEMP_FILE, errno);
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/*NOTREACHED*/
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}
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/* Read the contents of file */
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if (read(fildes, read_buffer, \
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sizeof(read_buffer)) > 0) {
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if (memcmp(read_buffer, write_buffer, strlen(write_buffer))) {
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tst_resm(TFAIL, "Data read "
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"from %s doesn't match "
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"with witten data",
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TEMP_FILE);
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} else {
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tst_resm(TPASS, "Functionality "
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"of sync() successful");
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}
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} else {
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tst_brkm(TFAIL, cleanup,
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"read() Fails on %s, error=%d",
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TEMP_FILE, errno);
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/*NOTREACHED*/
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}
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} else {
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tst_resm(TPASS, "call succeeded");
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}
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}
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Tst_count++; /* incr. TEST_LOOP counter */
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} /* End for TEST_LOOPING */
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/* Call cleanup() to undo setup done for the test. */
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cleanup();
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/*NOTREACHED*/
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} /* End main */
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/*
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* void
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* setup() - performs all ONE TIME setup for this test.
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* Create a temporary directory and change directory to it.
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* Create a test file under temporary directory and write some
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* data into it.
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*/
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void
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setup()
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{
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/* capture signals */
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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/* Pause if that option was specified
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* TEST_PAUSE contains the code to fork the test with the -i option.
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* You want to make sure you do this before you create your temporary
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* directory.
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*/
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TEST_PAUSE;
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/* make a temp directory and cd to it */
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tst_tmpdir();
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/* Copy some data into data buffer */
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strcpy(write_buffer, "abcdefghijklmnopqrstuvwxyz");
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/* Creat a temporary file under above directory */
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if ((fildes = open(TEMP_FILE, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
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tst_brkm(TBROK, cleanup,
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"open(%s, O_RDWR | O_CREAT, %#o) Failed, errno=%d :%s",
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TEMP_FILE, FILE_MODE, errno, strerror(errno));
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/*NOTREACHED*/
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}
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/* Write the buffer data into file */
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if (write(fildes, write_buffer, strlen(write_buffer)) != \
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strlen(write_buffer)) {
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tst_brkm(TBROK, cleanup,
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"write() failed to write buffer data to %s",
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TEMP_FILE);
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/*NOTREACHED*/
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}
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} /* End setup() */
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/*
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* void
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* cleanup() - performs all ONE TIME cleanup for this test at
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* completion or premature exit.
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* Remove the test directory and testfile created in the setup.
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*/
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void
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cleanup()
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{
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/*
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* print timing stats if that option was specified.
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* print errno log if that option was specified.
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*/
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TEST_CLEANUP;
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/* Close the temporary file */
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if (close(fildes) == -1) {
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tst_brkm(TFAIL, NULL,
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"close(%s) Failed, errno=%d : %s",
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TEMP_FILE, errno, strerror(errno));
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}
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/* Remove tmp dir and all files in it */
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tst_rmdir();
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/* exit with return code appropriate for results */
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tst_exit();
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} /* End cleanup() */
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