From 7199e74aa22e592a3b77bdd81f735edca5470596 Mon Sep 17 00:00:00 2001
From: Benji Dial <benji@benjidial.net>
Date: Sat, 20 Jan 2024 17:59:40 -0500
Subject: update

---
 include/hilbert/kernel/storage.hpp | 104 -------------------------------------
 1 file changed, 104 deletions(-)
 delete mode 100644 include/hilbert/kernel/storage.hpp

(limited to 'include/hilbert/kernel/storage.hpp')

diff --git a/include/hilbert/kernel/storage.hpp b/include/hilbert/kernel/storage.hpp
deleted file mode 100644
index ea40d86..0000000
--- a/include/hilbert/kernel/storage.hpp
+++ /dev/null
@@ -1,104 +0,0 @@
-#ifndef HILBERT_KERNEL_STORAGE_HPP
-#define HILBERT_KERNEL_STORAGE_HPP
-
-#include <hilbert/kernel/utility.hpp>
-#include <cstdint>
-
-namespace hilbert::kernel::storage {
-
-  typedef uint64_t node_id_t;
-  typedef uint64_t directory_iter_t;
-
-  enum class file_type {
-    regular_file,
-    directory,
-    symlink
-  };
-
-  enum class bd_result {
-    success,
-    out_of_bounds,
-    device_error
-  };
-
-  enum class fs_result {
-    success,
-    device_error,
-    fs_corrupt
-  };
-
-  struct dir_entry {
-    utility::string name;
-    node_id_t node;
-    file_type type;
-    //only used if type is regular_file.
-    uint64_t length;
-    //only used if type is symlink.
-    utility::string target;
-  };
-
-  class file_system_instance {
-
-  public:
-    virtual ~file_system_instance() {}
-
-    virtual fs_result get_root_node(node_id_t &out) = 0;
-
-    //it is assumed that this is a directory. sets iter_out
-    //to a value that can be passed to subsequent calls
-    //to get_next_child with the same argument for node.
-    virtual fs_result get_first_child(node_id_t node, std::optional<dir_entry> &out, directory_iter_t &iter_out) = 0;
-
-    //it is assumed that this is a directory. sets iter_out
-    //to a value that can be passed to subsequent calls
-    //to get_next_child with the same argument for node.
-    virtual fs_result get_next_child(node_id_t node, std::optional<dir_entry> &out, directory_iter_t &iter) = 0;
-
-    //it is assumed that this is a regular file and that
-    //the region requested is within the bounds of the file.
-    virtual fs_result read_bytes_from_file(node_id_t node, uint64_t start, uint64_t count, void *into) = 0;
-
-  };
-
-  class block_device {
-
-  private:
-    uint8_t *block_cache;
-    uint64_t block_cache_i;
-
-    //it is assumed that this block is within the bounds of the device.
-    bd_result load_cache_block(uint64_t i);
-
-  protected:
-    //implemented in driver. it is assumed that the
-    //blocks are within the bounds of the device.
-    virtual bd_result read_blocks_no_cache(uint64_t start, uint64_t count, void *into) = 0;
-
-    //it is assumed that this is only called once, by the driver, after
-    //block_size and block_count have been set, and before read_bytes or
-    //write_bytes can be called (e.g. in the derived class's constructor).
-    void allocate_block_cache();
-
-  public:
-    //set by storage component
-    file_system_instance *mounted_as;
-    //set by storage component
-    utility::uuid id;
-
-    //set by driver
-    uint64_t block_size;
-    //set by driver
-    uint64_t block_count;
-
-    virtual ~block_device() {
-      if (block_cache)
-        delete block_cache;
-    }
-
-    bd_result read_bytes(uint64_t start, uint64_t count, void *into);
-
-  };
-
-}
-
-#endif
-- 
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