void read_super_blocks(char* device, file_system_info* fs_info)
{
uint32_t offset, total, alloc;
fs_open(device);
strncpy(fs_info->fs, vmfs_MAGIC, FS_MAGIC_SIZE);
offset = logical_volume_offset(fs);
total = fs->fbb->bmh.total_items + offset;
alloc = vmfs_bitmap_allocated_items(fs->fbb) + offset;
fs_info->block_size = vmfs_fs_get_blocksize(fs);
fs_info->totalblock = total;
fs_info->usedblocks = alloc;
fs_info->device_size = vmfs_fs_get_blocksize(fs) * total;
fs_close();
}
/// read super block and write to image head
extern void initial_image_hdr(char* device, image_head* image_hdr)
{
uint32_t alloc,total;
fs_open(device);
strncpy(image_hdr->magic, IMAGE_MAGIC, IMAGE_MAGIC_SIZE);
strncpy(image_hdr->fs, vmfs_MAGIC, FS_MAGIC_SIZE);
total = fs->fbb->bmh.total_items;
alloc = vmfs_bitmap_allocated_items(fs->fbb);
image_hdr->block_size = vmfs_fs_get_blocksize(fs);
image_hdr->totalblock = total;
image_hdr->usedblocks = alloc;
image_hdr->device_size = (vmfs_fs_get_blocksize(fs)*total);
fs_close();
}
/// readbitmap - read bitmap
extern void readbitmap(char* device, image_head image_hdr, unsigned long* bitmap, int pui)
{
uint32_t current = 0, used_block = 0, free_block = 0, err_block = 0, total = 0, alloc = 0;
int status = 0;
int start = 0;
int bit_size = 1;
fs_open(device);
/// init progress
progress_bar prog; /// progress_bar structure defined in progress.h
progress_init(&prog, start, image_hdr.totalblock, image_hdr.totalblock, BITMAP, bit_size);
total = fs->fbb->bmh.total_items;
alloc = vmfs_bitmap_allocated_items(fs->fbb);
for(current = 0; current < total; current++){
status = vmfs_block_get_status(fs, VMFS_BLK_FB_BUILD(current));
if (status == -1) {
err_block++;
pc_clear_bit(current, bitmap);
} else if (status == 1){
used_block++;
pc_set_bit(current, bitmap);
} else if (status == 0){
free_block++;
pc_clear_bit(current, bitmap);
}
log_mesg(2, 0, 0, fs_opt.debug, "%s: Block 0x%8.8x status: %i\n", __FILE__, current, status);
update_pui(&prog, current, current, 0);
}
fs_close();
update_pui(&prog, 1, 1, 1);
log_mesg(0, 0, 0, fs_opt.debug, "%s: Used:%lld, Free:%lld, Status err:%lld\n", __FILE__, used_block, free_block, err_block);
}
