rtems/testsuites/libtests/block16/init.c

/* SPDX-License-Identifier: BSD-2-Clause */

/*
 * Copyright (c) 2012 embedded brains GmbH & Co. KG
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "tmacros.h"

#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>

#include <rtems/ramdisk.h>
#include <rtems/bdbuf.h>

const char rtems_test_name[] = "BLOCK 16";

#define ASSERT_SC( sc ) rtems_test_assert( ( sc ) == RTEMS_SUCCESSFUL )

static void test( void )
{
  static const char   device[] = "/dev/rda";
  rtems_status_code   sc;
  int                 fd;
  int                 rv;
  rtems_disk_device  *dd;
  ramdisk            *rd;
  unsigned char       buf[ 8 ];
  uint32_t            media_block_size = sizeof( buf[ 0 ] );
  rtems_blkdev_bnum   media_block_count = sizeof( buf ) / sizeof( buf[ 0 ] );
  rtems_blkdev_bnum   media_size = media_block_size * media_block_count;
  rtems_bdbuf_buffer *media_bd[ media_block_count ];
  rtems_bdbuf_buffer *large_bd;
  rtems_blkdev_bnum   i;

  for ( i = 0; i < media_block_count; ++i ) {
    buf[ i ] = i;
  }

  rd = ramdisk_allocate( buf, media_block_size, media_block_count, false );
  rtems_test_assert( rd != NULL );

  sc = rtems_blkdev_create(
    device,
    media_block_size,
    media_block_count,
    ramdisk_ioctl,
    rd
  );
  ASSERT_SC( sc );

  fd = open( device, O_RDWR );
  rtems_test_assert( fd >= 0 );

  rv = rtems_disk_fd_get_disk_device( fd, &dd );
  rtems_test_assert( rv == 0 );

  for ( i = 0; i < media_block_count; ++i ) {
    sc = rtems_bdbuf_read( dd, i, &media_bd[ i ] );
    ASSERT_SC( sc );

    rtems_test_assert( media_bd[ i ]->buffer[ 0 ] == buf[ i ] );
  }

  for ( i = 0; i < media_block_count; ++i ) {
    media_bd[ i ]->buffer[ 0 ] += media_block_count;

    sc = rtems_bdbuf_release_modified( media_bd[ i ] );
    ASSERT_SC( sc );
  }

  for ( i = 0; i < media_block_count; i += 2 ) {
    sc = rtems_bdbuf_read( dd, i, &media_bd[ i ] );
    ASSERT_SC( sc );

    rtems_test_assert(
      media_bd[ i ]->buffer[ 0 ] == buf[ i ] + media_block_count
    );
  }

  sc = rtems_bdbuf_set_block_size( dd, media_size, true );
  ASSERT_SC( sc );

  for ( i = 0; i < media_block_count; i += 2 ) {
    rtems_test_assert(
      media_bd[ i ]->state == RTEMS_BDBUF_STATE_ACCESS_PURGED
    );
    rtems_test_assert( media_bd[ i + 1 ]->state == RTEMS_BDBUF_STATE_FREE );

    rtems_test_assert(
      media_bd[ i ]->buffer[ 0 ] == buf[ i ] + media_block_count
    );
    rtems_test_assert( media_bd[ i + 1 ]->buffer[ 0 ] == buf[ i + 1 ] );

    sc = rtems_bdbuf_release( media_bd[ i ] );
    ASSERT_SC( sc );
  }

  sc = rtems_bdbuf_read( dd, 0, &large_bd );
  ASSERT_SC( sc );

  rtems_test_assert( memcmp( buf, large_bd->buffer, media_size ) == 0 );

  sc = rtems_bdbuf_release( large_bd );
  ASSERT_SC( sc );

  rv = close( fd );
  rtems_test_assert( rv == 0 );

  rv = unlink( device );
  rtems_test_assert( rv == 0 );
}

static void Init( rtems_task_argument arg )
{
  (void) arg;

  TEST_BEGIN();

  test();

  TEST_END();

  rtems_test_exit( 0 );
}

#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK

#define CONFIGURE_BDBUF_BUFFER_MIN_SIZE   1
#define CONFIGURE_BDBUF_BUFFER_MAX_SIZE   8
#define CONFIGURE_BDBUF_CACHE_MEMORY_SIZE 8

#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 4

#define CONFIGURE_MAXIMUM_TASKS 1

#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION

#define CONFIGURE_RTEMS_INIT_TASKS_TABLE

#define CONFIGURE_INIT

#include <rtems/confdefs.h>