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//==========================================================================

//

//      jffs2_3.c

//

//      Test garbage collect on a filesystem

//

//==========================================================================

// ####ECOSGPLCOPYRIGHTBEGIN####                                            

// -------------------------------------------                              

// This file is part of eCos, the Embedded Configurable Operating System.   

// Copyright (C) 2005 Free Software Foundation, Inc.                        

//

// 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.,    

// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 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 v2.                                               

//

// This exception does not invalidate any other reasons why a work based    

// on this file might be covered by the GNU General Public License.         

// -------------------------------------------                              

// ####ECOSGPLCOPYRIGHTEND####                                              

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):           asl

// Contributors:        asl

// Date:                2005-01-16

// Purpose:             Test garbage collect on a filesystem

// Description:         This test creates and deletes files in order

//                      to test the garbage collection code.

//                      

//####DESCRIPTIONEND####

//

//==========================================================================

#include <pkgconf/io_flash.h>

#include <stdio.h>

#include <unistd.h>

#include <fcntl.h>

#include <errno.h>

#include <string.h>

#include <stdlib.h>

#include <cyg/fileio/fileio.h>

#include <cyg/io/flash.h>

#include <cyg/crc/crc.h>

#include <cyg/infra/testcase.h>

#include <cyg/infra/diag.h>            // HAL polled output

#include <pkgconf/fs_jffs2.h>   // Address of JFFS2

//==========================================================================

#define stringify2(_x_) #_x_

#define stringify(_x_) stringify2(_x_)

#if defined(CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1)

# define JFFS2_TEST_DEV CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1

#elif defined(CYGFUN_IO_FLASH_BLOCK_FROM_FIS)

# define JFFS2_TEST_DEV "/dev/flash/fis/jffs2test"

#else

// fall back to using a user set area in the first device (only)

# define JFFS2_TEST_DEV "/dev/flash/0/" stringify(CYGNUM_FS_JFFS2_TEST_OFFSET) "," stringify(CYGNUM_FS_JFFS2_TEST_LENGTH)

#endif

//==========================================================================

#define ITERATIONS 1000000

#define NELEM(_x_) (sizeof(_x_)/sizeof(*(_x_)))

#define SHOW_RESULT( _fn, _res ) \

diag_printf("FAIL: " #_fn "() returned %d %s\n", _res, \

            (unsigned long) _res<0?strerror(errno):"");

//==========================================================================

// file creation, deletion and testing functions

static void create_file(int i)

{

  cyg_int32 buffer[1020];

  char name[16];

  cyg_uint32 j;

  int fd, err;

  sprintf(name,"test%07d",i);

  fd = creat(name, S_IRWXU);

  if (fd == -1) SHOW_RESULT( creat, fd );

  for (j=1; j < NELEM(buffer); j++) {

    buffer[j] = rand();

  }

  buffer[0] = 0;

  buffer[0] = cyg_posix_crc32((unsigned char *)buffer, sizeof(buffer));

  err = write(fd, buffer, sizeof(buffer));

  if (err == -1) SHOW_RESULT( write, err );

  err = close(fd);

  if (err == -1) SHOW_RESULT( close, err );

}

static void delete_file(int i)

{

  char name[16];

  int err;

  sprintf(name,"test%07d",i);

  err = unlink(name);

  if (err == -1) SHOW_RESULT( unlink, err );

}

static void check_file(int i)

{

  char name[16];

  int err, fd;

  cyg_int32 buffer[1020];

  cyg_uint32 crc;

  sprintf(name,"test%07d",i);

  fd = open(name, O_RDONLY);

  if (fd == -1) SHOW_RESULT( open, fd );

  err = read(fd, buffer, sizeof(buffer));

  if (err == -1) SHOW_RESULT( read, fd );

  crc = buffer[0];

  buffer[0] = 0;

  if (crc != cyg_posix_crc32((unsigned char *)buffer, sizeof(buffer))) {

    CYG_TEST_FAIL("File corrupt");

  }

  err = close(fd);

  if (err == -1) SHOW_RESULT( read, fd );

}

//==========================================================================

// main

int main( int argc, char **argv )

{

    int err, iteration;

    struct mallinfo minfo

;

    CYG_TEST_INIT();

    // --------------------------------------------------------------

    CYG_TEST_INFO("mount /");

    err = mount( JFFS2_TEST_DEV, "/", "jffs2" );

    if( err < 0 ) SHOW_RESULT( mount, err );

    chdir ("/");

    iteration=0;

    create_file(iteration);

    while (iteration < ITERATIONS) {

      if (!(iteration % 1000)) {

        minfo = mallinfo();

        diag_printf("<INFO> Iteration %07d fordblks = %7d\n",

                    iteration, minfo.fordblks);

      }

      iteration++;

      create_file(iteration);

      check_file(iteration-1);

      delete_file(iteration-1);

      check_file(iteration);

    }

    CYG_TEST_INFO("umount /");

    err = umount( "/" );

    if( err < 0 ) SHOW_RESULT( umount, err );

    CYG_TEST_PASS_FINISH("jffs2_3");

}