mtd/fs/jffs2/ecos/tests fseek1.c,NONE,1.1
gthomas at infradead.org
gthomas at infradead.org
Wed Apr 21 14:50:55 EDT 2004
Update of /home/cvs/mtd/fs/jffs2/ecos/tests
In directory phoenix.infradead.org:/tmp/cvs-serv9993/tests
Added Files:
fseek1.c
Log Message:
Add 'fseek' test - from Andrew Lunn
--- NEW FILE fseek1.c ---
//==========================================================================
//
// fseek1.c
//
// Test fseek on a filesystem
//
//==========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 2004 Andrew Lunn
//
// eCos 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 or (at your option) any later version.
//
// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): asl
// Contributors: asl
// Date: 2004-03-29
// Purpose: Test fseek on a filesystem
// Description: This test uses the ramfs to check out the fseek
// operation on a filesystem.
//
//
//
//
//
//
//
//####DESCRIPTIONEND####
//
//==========================================================================
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <cyg/fileio/fileio.h>
#include <cyg/io/flash.h>
#include <cyg/infra/testcase.h>
#include <cyg/infra/diag.h> // HAL polled output
//==========================================================================
#define SHOW_RESULT( _fn, _res ) \
diag_printf("FAIL: " #_fn "() returned %d %s\n", _res, _res<0?strerror(errno):"");
//==========================================================================
char buf[1024];
char buf1[1024];
//==========================================================================
// main
int main( int argc, char **argv )
{
int err;
FILE *stream;
long pos;
int i;
CYG_TEST_INIT();
// --------------------------------------------------------------
CYG_TEST_INFO("mount /");
err = mount( CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1, "/", "jffs2" );
if( err < 0 ) SHOW_RESULT( mount, err );
CYG_TEST_INFO("creating /fseek");
stream = fopen("/fseek","w+");
if (!stream) {
diag_printf("FAIL: fopen() returned NULL, %s\n", strerror(errno));
CYG_TEST_FINISH("done"); \
}
/* Write a buffer full of cyclic numbers */
for (i = 0; i < sizeof(buf); i++) {
buf[i] = i % 256;
}
CYG_TEST_INFO("writing test pattern");
err=fwrite(buf,sizeof(buf), 1, stream);
if ( err < 0 ) SHOW_RESULT( fwrite, err );
/* The current position should be the same size as the buffer */
pos = ftell(stream);
if (pos < 0) SHOW_RESULT( ftell, pos );
if (pos != sizeof(buf))
diag_printf("<FAIL>: ftell is not telling the truth.");
CYG_TEST_INFO("fseek()ing to beginning and writing");
/* Seek back to the beginning of the file */
err = fseek(stream, 0, SEEK_SET);
if ( err < 0 ) SHOW_RESULT( fseek, err );
pos = ftell(stream);
if (pos < 0) SHOW_RESULT( ftell, pos );
if (pos != 0) CYG_TEST_FAIL("ftell is not telling the truth");
/* Write 4 zeros to the beginning of the file */
for (i = 0; i < 4; i++) {
buf[i] = 0;
}
err = fwrite(buf, 4, 1, stream);
if ( err < 0 ) SHOW_RESULT( fwrite, err );
/* Check the pointer is at 4 */
pos = ftell(stream);
if (pos < 0) SHOW_RESULT( ftell, pos );
if (pos != 4) CYG_TEST_FAIL("ftell is not telling the truth");
CYG_TEST_INFO("closing file");
/* Close the file, open it up again and read it back */
err = fclose(stream);
if (err != 0) SHOW_RESULT( fclose, err );
CYG_TEST_INFO("open file /fseek");
stream = fopen("/fseek", "r+");
if (!stream) {
diag_printf("<FAIL>: fopen() returned NULL, %s\n", strerror(errno));
}
err = fread(buf1,sizeof(buf1),1, stream);
if (err != 1) SHOW_RESULT( fread, err );
CYG_TEST_INFO("Comparing contents");
if (memcmp(buf, buf1, sizeof(buf1))) {
CYG_TEST_FAIL("File contents inconsistent");
}
CYG_TEST_INFO("closing file");
err = fclose(stream);
if (err != 0) SHOW_RESULT( fclose, err );
CYG_TEST_INFO("open file /fseek");
stream = fopen("/fseek", "r+");
if (!stream) {
diag_printf("<FAIL>: fopen() returned NULL, %s\n", strerror(errno));
}
CYG_TEST_INFO("fseek()ing past the end to create a hole");
/* Seek 1K after the end of the file */
err = fseek(stream, sizeof(buf), SEEK_END);
if ( err < 0 ) SHOW_RESULT( fseek, err );
pos = ftell(stream);
if (pos < 0) SHOW_RESULT( ftell, pos );
if (pos != (2*sizeof(buf))) CYG_TEST_FAIL("ftell is not telling the truth");
CYG_TEST_INFO("writing test pattern");
err=fwrite(buf,sizeof(buf), 1, stream);
if ( err < 0 ) SHOW_RESULT( fwrite, err );
pos = ftell(stream);
if (pos < 0) SHOW_RESULT( ftell, pos );
if (pos != (3*sizeof(buf))) CYG_TEST_FAIL("ftell is not telling the truth");
CYG_TEST_INFO("closing file");
err = fclose(stream);
if (err != 0) SHOW_RESULT( fclose, err );
CYG_TEST_INFO("open file /fseek");
stream = fopen("/fseek", "r+");
if (!stream) {
diag_printf("<FAIL>: fopen() returned NULL, %s\n", strerror(errno));
}
err = fread(buf1,sizeof(buf1),1, stream);
if (err != 1) SHOW_RESULT( fread, err );
CYG_TEST_INFO("Comparing contents");
if (memcmp(buf, buf1, sizeof(buf1))) {
CYG_TEST_FAIL("File contents inconsistent");
}
err = fread(buf1,sizeof(buf1),1, stream);
if (err != 1) SHOW_RESULT( fread, err );
for (i = 0; i< sizeof(buf); i++) {
if (buf1[i] != 0)
CYG_TEST_FAIL("Hole does not contain zeros");
}
err = fread(buf1,sizeof(buf1),1, stream);
if (err != 1) SHOW_RESULT( fread, err );
if (memcmp(buf, buf1, sizeof(buf1))) {
CYG_TEST_FAIL("File contents inconsistent");
}
CYG_TEST_INFO("closing file");
/* Close the file */
err = fclose(stream);
if (err != 0) SHOW_RESULT( fclose, err );
CYG_TEST_INFO("umount /");
err = umount( "/" );
if( err < 0 ) SHOW_RESULT( umount, err );
CYG_TEST_PASS_FINISH("fseek1");
}
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