diff options
Diffstat (limited to 'include/mercury/kernel/fs')
| -rw-r--r-- | include/mercury/kernel/fs/tarfs.hpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/mercury/kernel/fs/tarfs.hpp b/include/mercury/kernel/fs/tarfs.hpp new file mode 100644 index 0000000..41773ee --- /dev/null +++ b/include/mercury/kernel/fs/tarfs.hpp @@ -0,0 +1,40 @@ +#ifndef MERCURY_KERNEL_FS_TARFS_HPP +#define MERCURY_KERNEL_FS_TARFS_HPP + +#include <mercury/kernel/storage.hpp> + +namespace mercury::kernel::fs { + + class tarfs_instance : public storage::file_system_instance { + + private: + storage::block_device *bd; + + storage::io_result next_node(storage::node_id_t &node); + //name_buf must be at least 255 chars long. + storage::io_result read_name(storage::node_id_t node, char *name_buf, size_t &name_len_out); + //len <= 12 + storage::io_result read_num(uint64_t offset, size_t len, uint64_t &out); + + public: + tarfs_instance(storage::block_device *bd); + + storage::io_result get_root_node(storage::node_id_t &out) override; + storage::io_result get_first_child( + storage::node_id_t node, storage::node_id_t &out, storage::directory_iter_t &iter_out) override; + storage::io_result get_next_child( + storage::node_id_t node, storage::node_id_t &out, storage::directory_iter_t &iter) override; + storage::io_result get_child( + storage::node_id_t node, storage::node_id_t &out, const char *name, size_t name_len) override; + storage::io_result get_name_length(storage::node_id_t node, size_t &length_out) override; + storage::io_result get_name(storage::node_id_t node, char *buffer, size_t &length_out) override; + storage::io_result get_file_length(storage::node_id_t node, uint64_t &length_out) override; + storage::io_result get_file_type(storage::node_id_t node, storage::file_type &out) override; + + }; + + storage::io_result tarfs_mounter(storage::block_device *bd, storage::file_system_instance *&fs_out); + +} + +#endif |