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