From 882e74b2191c059a9226cbd8bcb51c97da36247c Mon Sep 17 00:00:00 2001 From: Benji Dial Date: Fri, 12 Jan 2024 20:39:21 -0500 Subject: rewrite file system layer --- include/mercury/kernel/storage/fs/tarfs.hpp | 32 +++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 include/mercury/kernel/storage/fs/tarfs.hpp (limited to 'include/mercury/kernel/storage/fs/tarfs.hpp') diff --git a/include/mercury/kernel/storage/fs/tarfs.hpp b/include/mercury/kernel/storage/fs/tarfs.hpp new file mode 100644 index 0000000..9e16207 --- /dev/null +++ b/include/mercury/kernel/storage/fs/tarfs.hpp @@ -0,0 +1,32 @@ +#ifndef MERCURY_KERNEL_STORAGE_FS_TARFS_HPP +#define MERCURY_KERNEL_STORAGE_FS_TARFS_HPP + +#include + +namespace mercury::kernel::storage::fs { + + class tarfs_instance : public file_system_instance { + + private: + block_device *bd; + + fs_result next_node(node_id_t node, std::optional &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 &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 &out, directory_iter_t &iter_out); + fs_result get_next_child(node_id_t node, std::optional &out, directory_iter_t &iter); + fs_result read_bytes_from_file(node_id_t node, uint64_t start, uint64_t count, void *into); + + }; + +} + +#endif -- cgit v1.2.3