testcases/kernel/syscalls/sync/sync02.c - platform/external/ltp - Gitiles

 /*
  *
  *   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: sync02
  *
  * 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>
  *  sync02 [-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 <stdio.h>
 #include <unistd.h>
 #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

 char *TCID = "sync02";		/* 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();			/* cleanup function for the test */

 int main(int ac, char **av)
 {
 	int lc;			/* loop counter */
 	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, NULL, NULL);
 	if (msg != NULL) {
 		tst_brkm(TBROK, NULL, "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 (strcmp(read_buffer, 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*/ return 0;

 }				/* 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) + 1) !=
 	    strlen(write_buffer) + 1) {
 		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() */
	/*
	*
	* 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: sync02
	*
	* 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>
	* sync02 [-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 <stdio.h>
	#include <unistd.h>
	#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

	char TCID = "sync02"; / 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(); /* cleanup function for the test */

	int main(int ac, char **av)
	{
	int lc; /* loop counter */
	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, NULL, NULL);
	if (msg != NULL) {
	tst_brkm(TBROK, NULL, "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 (strcmp(read_buffer, 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/ return 0;

	} /* 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) + 1) !=
	strlen(write_buffer) + 1) {
	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() */