/*
* Copyright (c) 2012 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "tmacros.h"
#include <fcntl.h>
#include <rtems/dosfs.h>
#include <rtems/sparse-disk.h>
#include <rtems/blkdev.h>
#include <bsp.h>
const char rtems_test_name[] = "FSDOSFSWRITE 1";
#define MAX_PATH_LENGTH 100 /* Maximum number of characters per path */
#define SECTOR_SIZE 512 /* sector size (bytes) */
#define FAT16_MAX_CLN 65525 /* maximum + 1 number of clusters for FAT16 */
#define FAT16_DEFAULT_SECTORS_PER_CLUSTER 32 /* Default number of sectors per cluster for FAT16 */
#define SECTORS_PER_CLUSTER 2
static void format_and_mount( const char *dev_name, const char *mount_dir )
{
static const msdos_format_request_param_t rqdata = {
.sectors_per_cluster = SECTORS_PER_CLUSTER,
.quick_format = true
};
int rv;
rv = msdos_format( dev_name, &rqdata );
rtems_test_assert( rv == 0 );
rv = mount( dev_name,
mount_dir,
RTEMS_FILESYSTEM_TYPE_DOSFS,
RTEMS_FILESYSTEM_READ_WRITE,
NULL );
rtems_test_assert( rv == 0 );
}
static void do_fsync( const char *file )
{
int rv;
int fd;
fd = open( file, O_RDONLY );
rtems_test_assert( fd >= 0 );
rv = fsync( fd );
rtems_test_assert( rv == 0 );
rv = close( fd );
rtems_test_assert( rv == 0 );
}
static void check_block_stats( const char *dev_name,
const char *mount_dir,
const rtems_blkdev_stats *expected_stats )
{
int fd;
int rv;
rtems_blkdev_stats actual_stats;
do_fsync( mount_dir );
fd = open( dev_name, O_RDONLY );
rtems_test_assert( fd >= 0 );
rv = ioctl( fd, RTEMS_BLKIO_GETDEVSTATS, &actual_stats );
rtems_test_assert( rv == 0 );
rtems_test_assert( memcmp( &actual_stats, expected_stats,
sizeof( actual_stats ) ) == 0 );
rv = close( fd );
rtems_test_assert( rv == 0 );
}
static void reset_block_stats( const char *dev_name, const char *mount_dir )
{
int fd;
int rv;
do_fsync( mount_dir );
fd = open( dev_name, O_RDONLY );
rtems_test_assert( fd >= 0 );
rv = ioctl( fd, RTEMS_BLKIO_PURGEDEV );
rtems_test_assert( rv == 0 );
rv = ioctl( fd, RTEMS_BLKIO_RESETDEVSTATS );
rtems_test_assert( rv == 0 );
rv = close( fd );
rtems_test_assert( rv == 0 );
}
static int create_file( const char *file_name )
{
mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
return creat( file_name, mode );
}
static void test_normal_file_write(
const char *dev_name,
const char *mount_dir,
const char *file_name )
{
static const rtems_blkdev_stats complete_existing_block_stats = {
.read_hits = 0,
.read_misses = 0,
.read_ahead_transfers = 0,
.read_ahead_peeks = 0,
.read_blocks = 0,
.read_errors = 0,
.write_transfers = 1,
.write_blocks = 1,
.write_errors = 0
};
static const rtems_blkdev_stats complete_new_block_stats = {
.read_hits = 3,
.read_misses = 2,
.read_ahead_transfers = 0,
.read_ahead_peeks = 0,
.read_blocks = 2,
.read_errors = 0,
.write_transfers = 1,
.write_blocks = 3,
.write_errors = 0
};
static const rtems_blkdev_stats partial_new_block_stats = {
.read_hits = 3,
.read_misses = 3,
.read_ahead_transfers = 0,
.read_ahead_peeks = 0,
.read_blocks = 3,
.read_errors = 0,
.write_transfers = 1,
.write_blocks = 3,
.write_errors = 0
};
int rv;
int fd;
ssize_t num_bytes;
uint8_t cluster_buf[SECTOR_SIZE
* SECTORS_PER_CLUSTER];
uint32_t cluster_size = sizeof( cluster_buf );
off_t off;
memset( cluster_buf, 0xFE, cluster_size );
format_and_mount( dev_name, mount_dir );
fd = create_file( file_name );
rtems_test_assert( fd >= 0 );
num_bytes = write( fd, cluster_buf, cluster_size );
rtems_test_assert( (ssize_t) cluster_size == num_bytes );
off = lseek( fd, 0, SEEK_SET );
rtems_test_assert( off == 0 );
reset_block_stats( dev_name, mount_dir );
/* Write a complete cluster into an existing file space */
num_bytes = write( fd, cluster_buf, cluster_size );
rtems_test_assert( (ssize_t) cluster_size == num_bytes );
check_block_stats( dev_name, mount_dir, &complete_existing_block_stats );
reset_block_stats( dev_name, mount_dir );
/* Write a complete cluster into a new file space */
num_bytes = write( fd, cluster_buf, cluster_size );
rtems_test_assert( (ssize_t) cluster_size == num_bytes );
check_block_stats( dev_name, mount_dir, &complete_new_block_stats );
reset_block_stats( dev_name, mount_dir );
/* Write a new partial cluster into a new file space */
num_bytes = write( fd, cluster_buf, 1 );
rtems_test_assert( num_bytes == 1 );
check_block_stats( dev_name, mount_dir, &partial_new_block_stats );
rv = close( fd );
rtems_test_assert( 0 == rv );
rv = unmount( mount_dir );
rtems_test_assert( 0 == rv );
}
static void test_fat12_root_directory_write( const char *dev_name,
const char *mount_dir,
const char *file_name )
{
static const rtems_blkdev_stats fat12_root_dir_stats = {
.read_hits = 11,
.read_misses = 2,
.read_ahead_transfers = 0,
.read_blocks = 2,
.read_errors = 0,
.write_transfers = 1,
.write_blocks = 1,
.write_errors = 0
};
int fd;
int rv;
format_and_mount( dev_name, mount_dir );
reset_block_stats( dev_name, mount_dir );
fd = create_file( file_name );
rtems_test_assert( fd >= 0 );
rv = close( fd );
rtems_test_assert( rv == 0 );
check_block_stats( dev_name, mount_dir, &fat12_root_dir_stats );
rv = unmount( mount_dir );
rtems_test_assert( rv == 0 );
}
static void test( void )
{
static const char dev_name[] = "/dev/sda";
static const char mount_dir[] = "/mnt";
static const char file_name[] = "/mnt/file.txt";
rtems_status_code sc;
int rv;
rv = mkdir( mount_dir, S_IRWXU | S_IRWXG | S_IRWXO );
rtems_test_assert( 0 == rv );
/* A 1.44 MB disk */
sc = rtems_sparse_disk_create_and_register(
dev_name,
SECTOR_SIZE,
64,
2880,
0
);
rtems_test_assert( RTEMS_SUCCESSFUL == sc );
test_fat12_root_directory_write( dev_name, mount_dir, file_name );
test_normal_file_write( dev_name, mount_dir, file_name );
rv = unlink( dev_name );
rtems_test_assert( rv == 0 );
}
static void Init( rtems_task_argument 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_FILESYSTEM_DOSFS
/* 1 device file for blkstats + 1 file for writing + 1 mount_dir + stdin + stdout + stderr + device file when mounted */
#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 8
#define CONFIGURE_UNLIMITED_OBJECTS
#define CONFIGURE_UNIFIED_WORK_AREAS
#define CONFIGURE_INIT_TASK_STACK_SIZE ( 32 * 1024 )
#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT_TASK_ATTRIBUTES RTEMS_FLOATING_POINT
#define CONFIGURE_BDBUF_BUFFER_MAX_SIZE ( 32 * 1024 )
#define CONFIGURE_INIT
#include <rtems/confdefs.h>