func readBlock(file file.BlockDevice, key int64) (blk *block, err error) {
bytes, err := file.ReadBlock(key)
if err != nil {
return nil, err
}
return load_block(key, bytes), err
}
func load_list_block(file file.BlockDevice, key int64) (self *list_block, err error) {
bytes, err := file.ReadBlock(key)
if err != nil {
return nil, err
}
data := bytes[LIST_HEADER_LEN:]
header := load_list_header(bytes)
self = &list_block{
file: file,
key: key,
bytes: bytes,
data: data,
header: header,
}
return self, nil
}