int IMFS_initialize_support(
rtems_filesystem_mount_table_entry_t *mt_entry,
const void *data
)
{
const IMFS_mount_data *mount_data = data;
IMFS_fs_info_t *fs_info = mount_data->fs_info;
IMFS_jnode_t *root_node;
fs_info->mknod_controls = mount_data->mknod_controls;
root_node = IMFS_initialize_node(
&fs_info->Root_directory.Node,
&fs_info->mknod_controls->directory->node_control,
"",
0,
(S_IFDIR | 0755),
NULL
);
IMFS_assert( root_node != NULL );
mt_entry->fs_info = fs_info;
mt_entry->ops = mount_data->ops;
mt_entry->pathconf_limits_and_options = &IMFS_LIMITS_AND_OPTIONS;
mt_entry->mt_fs_root->location.node_access = root_node;
IMFS_Set_handlers( &mt_entry->mt_fs_root->location );
IMFS_determine_bytes_per_block(
&imfs_memfile_bytes_per_block,
imfs_rq_memfile_bytes_per_block,
IMFS_MEMFILE_DEFAULT_BYTES_PER_BLOCK
);
return 0;
}
/*
* IMFS_initialize
*/
int IMFS_initialize_support(
epos_filesystem_mount_table_entry_t *temp_mt_entry,
const epos_filesystem_operations_table *op_table,
const epos_filesystem_file_handlers_r *memfile_handlers,
const epos_filesystem_file_handlers_r *directory_handlers
)
{
static int imfs_instance;
IMFS_fs_info_t *fs_info;
IMFS_jnode_t *jnode;
/*
* determine/check value for imfs_memfile_bytes_per_block
*/
IMFS_determine_bytes_per_block(&imfs_memfile_bytes_per_block,
imfs_rq_memfile_bytes_per_block,
IMFS_MEMFILE_DEFAULT_BYTES_PER_BLOCK);
/*
* Create the root node
*
* NOTE: UNIX root is 755 and owned by root/root (0/0).
*/
temp_mt_entry->mt_fs_root.node_access = IMFS_create_root_node();
temp_mt_entry->mt_fs_root.handlers = directory_handlers;
temp_mt_entry->mt_fs_root.ops = op_table;
temp_mt_entry->pathconf_limits_and_options = IMFS_LIMITS_AND_OPTIONS;
/*
* Create custom file system data.
*/
fs_info = calloc( 1, sizeof( IMFS_fs_info_t ) );
if ( !fs_info ) {
free(temp_mt_entry->mt_fs_root.node_access);
epos_set_errno_and_return_minus_one(ENOMEM);
}
temp_mt_entry->fs_info = fs_info;
/*
* Set st_ino for the root to 1.
*/
fs_info->instance = imfs_instance++;
fs_info->ino_count = 1;
fs_info->memfile_handlers = memfile_handlers;
fs_info->directory_handlers = directory_handlers;
jnode = temp_mt_entry->mt_fs_root.node_access;
jnode->st_ino = fs_info->ino_count;
/* Initialize POSIX FIFO/pipe module */
epos_pipe_initialize();
return 0;
}
int IMFS_initialize_support(
rtems_filesystem_mount_table_entry_t *mt_entry,
const rtems_filesystem_operations_table *op_table,
const IMFS_node_control *const node_controls [IMFS_TYPE_COUNT]
)
{
static int imfs_instance;
int rv = 0;
IMFS_fs_info_t *fs_info = calloc( 1, sizeof( *fs_info ) );
if ( fs_info != NULL ) {
IMFS_jnode_t *root_node;
fs_info->instance = imfs_instance++;
memcpy(
fs_info->node_controls,
node_controls,
sizeof( fs_info->node_controls )
);
root_node = IMFS_allocate_node(
fs_info,
fs_info->node_controls [IMFS_DIRECTORY],
"",
0,
(S_IFDIR | 0755),
NULL
);
if ( root_node != NULL ) {
mt_entry->fs_info = fs_info;
mt_entry->ops = op_table;
mt_entry->pathconf_limits_and_options = &IMFS_LIMITS_AND_OPTIONS;
mt_entry->mt_fs_root->location.node_access = root_node;
IMFS_Set_handlers( &mt_entry->mt_fs_root->location );
} else {
errno = ENOMEM;
rv = -1;
}
} else {
errno = ENOMEM;
rv = -1;
}
if ( rv == 0 ) {
IMFS_determine_bytes_per_block(
&imfs_memfile_bytes_per_block,
imfs_rq_memfile_bytes_per_block,
IMFS_MEMFILE_DEFAULT_BYTES_PER_BLOCK
);
}
return rv;
}
