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#ifndef HILBERT_KERNEL_STORAGE_FS_TARFS_HPP
#define HILBERT_KERNEL_STORAGE_FS_TARFS_HPP
#include <hilbert/kernel/storage.hpp>
namespace hilbert::kernel::storage::fs {
class tarfs_instance : public file_system_instance {
private:
block_device *bd;
fs_result next_node(node_id_t node, std::optional<node_id_t> &out);
fs_result read_full_name(node_id_t node, utility::string &out);
//len <= 12.
fs_result read_num(uint64_t offset, unsigned len, uint64_t &out);
fs_result first_child_starting_at(node_id_t parent, node_id_t start, std::optional<node_id_t> &out);
fs_result get_dir_entry(node_id_t node, dir_entry &entry);
public:
tarfs_instance(block_device *bd);
fs_result get_root_node(node_id_t &out);
fs_result get_first_child(node_id_t node, std::optional<dir_entry> &out, directory_iter_t &iter_out);
fs_result get_next_child(node_id_t node, std::optional<dir_entry> &out, directory_iter_t &iter);
fs_result read_bytes_from_file(node_id_t node, uint64_t start, uint64_t count, void *into);
};
}
#endif
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