Merge branch 'refactor' into 'develop-BA-FS26'

Refactor

See merge request teachos/kernel!18

59 files changed, 437 insertions, 439 deletions

diff --git a/kernel/CMakeLists.txt b/kernel/CMakeLists.txt
index 5cc6f2d..10bfecb 100644
--- a/kernel/CMakeLists.txt
+++ b/kernel/CMakeLists.txt
@@ -20,14 +20,14 @@ add_executable("kernel"
     "src/devices/device.cpp"
     "src/devices/block_device.cpp"
     "src/devices/block_device_utils.cpp"
-    "src/devices/storage/storage_controller.cpp"
-    "src/devices/storage/storage_management.cpp"
-    "src/devices/storage/ram_disk/ram_disk_controller.cpp"
-    "src/devices/storage/ram_disk/ram_disk_device.cpp"
-    "src/filesystem/devfs/devfs_filesystem.cpp"
-    "src/filesystem/devfs/devfs_root_inode.cpp"
-    "src/filesystem/ext2/ext2_filesystem.cpp"
-    "src/filesystem/ext2/ext2_inode.cpp"
+    "src/devices/storage/controller.cpp"
+    "src/devices/storage/management.cpp"
+    "src/devices/storage/ram_disk/controller.cpp"
+    "src/devices/storage/ram_disk/device.cpp"
+    "src/filesystem/devfs/filesystem.cpp"
+    "src/filesystem/devfs/inode.cpp"
+    "src/filesystem/ext2/filesystem.cpp"
+    "src/filesystem/ext2/inode.cpp"
     "src/filesystem/dentry.cpp"
     "src/filesystem/device_inode.cpp"
     "src/filesystem/file_descriptor_table.cpp"
@@ -36,8 +36,8 @@ add_executable("kernel"
     "src/filesystem/mount_table.cpp"
     "src/filesystem/mount.cpp"
     "src/filesystem/open_file_description.cpp"
-    "src/filesystem/rootfs/rootfs_filesystem.cpp"
-    "src/filesystem/rootfs/rootfs_inode.cpp"
+    "src/filesystem/rootfs/filesystem.cpp"
+    "src/filesystem/rootfs/inode.cpp"
     "src/filesystem/vfs.cpp"
 )
 
diff --git a/kernel/include/kernel/devices/block_device.hpp b/kernel/include/kernel/devices/block_device.hpp
index e2026dd..619b815 100644
--- a/kernel/include/kernel/devices/block_device.hpp
+++ b/kernel/include/kernel/devices/block_device.hpp
@@ -7,7 +7,7 @@
 
 #include <cstddef>
 
-namespace devices
+namespace kernel::devices
 {
   /**
    * @brief Base interface for block-addressable devices.
@@ -92,6 +92,6 @@ namespace devices
 
     size_t m_block_size;
   };
-}  // namespace devices
+}  // namespace kernel::devices
 
 #endif
\ No newline at end of file
diff --git a/kernel/include/kernel/devices/block_device_utils.hpp b/kernel/include/kernel/devices/block_device_utils.hpp
index 5ec69d1..bb49d04 100644
--- a/kernel/include/kernel/devices/block_device_utils.hpp
+++ b/kernel/include/kernel/devices/block_device_utils.hpp
@@ -7,11 +7,11 @@
 
 #include <cstddef>
 
-namespace devices::block_device_utils
+namespace kernel::devices::block_device_utils
 {
   auto read(kstd::shared_ptr<devices::device> const & device, void * buffer, size_t offset, size_t size) -> size_t;
   auto write(kstd::shared_ptr<devices::device> const & device, void const * buffer, size_t offset, size_t size)
       -> size_t;
-}  // namespace devices::block_device_utils
+}  // namespace kernel::devices::block_device_utils
 
 #endif
\ No newline at end of file
diff --git a/kernel/include/kernel/devices/device.hpp b/kernel/include/kernel/devices/device.hpp
index 66cb7f8..67fa5ad 100644
--- a/kernel/include/kernel/devices/device.hpp
+++ b/kernel/include/kernel/devices/device.hpp
@@ -5,7 +5,7 @@
 
 #include <cstddef>
 
-namespace devices
+namespace kernel::devices
 {
   /**
    * @brief Base device identified by a major, minor number and name.
@@ -57,6 +57,6 @@ namespace devices
     size_t m_minor;
     kstd::string m_name;
   };
-}  // namespace devices
+}  // namespace kernel::devices
 
 #endif
\ No newline at end of file
diff --git a/kernel/include/kernel/devices/storage/storage_controller.hpp b/kernel/include/kernel/devices/storage/controller.hpp
index 58585fa..e3bfd01 100644
--- a/kernel/include/kernel/devices/storage/storage_controller.hpp
+++ b/kernel/include/kernel/devices/storage/controller.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_DEVICES_STORAGE_STORAGE_CONTROLLER_HPP
-#define TEACH_OS_KERNEL_DEVICES_STORAGE_STORAGE_CONTROLLER_HPP
+#ifndef TEACH_OS_KERNEL_DEVICES_STORAGE_CONTROLLER_HPP
+#define TEACH_OS_KERNEL_DEVICES_STORAGE_CONTROLLER_HPP
 
 #include "kernel/devices/device.hpp"
 
@@ -8,7 +8,7 @@
 
 #include <cstddef>
 
-namespace devices::storage
+namespace kernel::devices::storage
 {
   /**
    * @brief Base interface for storage controllers.
@@ -16,12 +16,12 @@ namespace devices::storage
    * A storage controller probes for devices and resolves devices by major/minor
    * numbers.
    */
-  struct storage_controller
+  struct controller
   {
     /**
      * @brief Virtual destructor.
      */
-    virtual ~storage_controller() = default;
+    virtual ~controller() = default;
 
     /**
      * @brief Probe the controller and register discovered devices.
@@ -66,6 +66,6 @@ namespace devices::storage
     size_t m_minors_per_device{};
     kstd::vector<kstd::shared_ptr<devices::device>> m_devices{};
   };
-}  // namespace devices::storage
+}  // namespace kernel::devices::storage
 
 #endif
\ No newline at end of file
diff --git a/kernel/include/kernel/devices/storage/storage_management.hpp b/kernel/include/kernel/devices/storage/management.hpp
index 413820e..255d170 100644
--- a/kernel/include/kernel/devices/storage/storage_management.hpp
+++ b/kernel/include/kernel/devices/storage/management.hpp
@@ -1,15 +1,15 @@
-#ifndef TEACH_OS_KERNEL_DEVICES_STORAGE_STORAGE_MANAGEMENT_HPP
-#define TEACH_OS_KERNEL_DEVICES_STORAGE_STORAGE_MANAGEMENT_HPP
+#ifndef TEACH_OS_KERNEL_DEVICES_STORAGE_MANAGEMENT_HPP
+#define TEACH_OS_KERNEL_DEVICES_STORAGE_MANAGEMENT_HPP
 
 #include "kernel/devices/device.hpp"
-#include "kernel/devices/storage/storage_controller.hpp"
+#include "kernel/devices/storage/controller.hpp"
 
 #include <kstd/memory>
 #include <kstd/vector>
 
 #include <cstddef>
 
-namespace devices::storage
+namespace kernel::devices::storage
 {
   /**
    * @brief Global storage subsystem manager.
@@ -17,7 +17,7 @@ namespace devices::storage
    * Owns registered storage controllers and provides device lookup by
    * major/minor numbers.
    */
-  struct storage_management
+  struct management
   {
     /**
      * @brief Initialize global storage management.
@@ -34,7 +34,7 @@ namespace devices::storage
      * @return Reference to the active storage manager.
      * @warning Panics if storage management has not been initialized.
      */
-    auto static get() -> storage_management &;
+    auto static get() -> management &;
 
     /**
      * @brief Register a storage controller.
@@ -42,13 +42,13 @@ namespace devices::storage
      *
      * Assigns controller IDs (major number range and minors per device).
      */
-    auto add_controller(kstd::shared_ptr<storage_controller> const & controller) -> void;
+    auto add_controller(kstd::shared_ptr<controller> const & controller) -> void;
 
     /**
      * @brief Return all registered storage controllers.
      * @return Vector of all registered storage controllers.
      */
-    [[nodiscard]] auto all_controllers() const -> kstd::vector<kstd::shared_ptr<storage_controller>> const &;
+    [[nodiscard]] auto all_controllers() const -> kstd::vector<kstd::shared_ptr<controller>> const &;
 
     /**
      * @brief Find a device by major/minor numbers.
@@ -68,10 +68,10 @@ namespace devices::storage
     /**
      * @brief Private default constructor for storage management singleton.
      */
-    storage_management() = default;
+    management() = default;
 
-    kstd::vector<kstd::shared_ptr<storage_controller>> m_controllers{};
+    kstd::vector<kstd::shared_ptr<controller>> m_controllers{};
   };
-}  // namespace devices::storage
+}  // namespace kernel::devices::storage
 
 #endif
\ No newline at end of file
diff --git a/kernel/include/kernel/devices/storage/ram_disk/ram_disk_controller.hpp b/kernel/include/kernel/devices/storage/ram_disk/controller.hpp
index 6f022e3..ad8b29f 100644
--- a/kernel/include/kernel/devices/storage/ram_disk/ram_disk_controller.hpp
+++ b/kernel/include/kernel/devices/storage/ram_disk/controller.hpp
@@ -3,20 +3,20 @@
 
 #include "kapi/boot_module/boot_module_registry.hpp"
 
-#include "kernel/devices/storage/storage_controller.hpp"
+#include "kernel/devices/storage/controller.hpp"
 
-namespace devices::storage::ram_disk
+namespace kernel::devices::storage::ram_disk
 {
   /**
    * @brief Storage controller that exposes boot modules as RAM-disk devices.
    */
-  struct ram_disk_controller : storage_controller
+  struct controller : kernel::devices::storage::controller
   {
     /**
      * @brief Create a RAM-disk controller.
      * @param registry Boot module registry as device source.
      */
-    explicit ram_disk_controller(kapi::boot_modules::boot_module_registry const * registry);
+    explicit controller(kapi::boot_modules::boot_module_registry const * registry);
 
     /**
      * @brief Probe boot modules and create RAM-disk devices.
@@ -26,6 +26,6 @@ namespace devices::storage::ram_disk
   private:
     kapi::boot_modules::boot_module_registry const * m_boot_module_registry;
   };
-}  // namespace devices::storage::ram_disk
+}  // namespace kernel::devices::storage::ram_disk
 
 #endif
\ No newline at end of file
diff --git a/kernel/include/kernel/devices/storage/ram_disk/ram_disk_device.hpp b/kernel/include/kernel/devices/storage/ram_disk/device.hpp
index c323f4b..0777e86 100644
--- a/kernel/include/kernel/devices/storage/ram_disk/ram_disk_device.hpp
+++ b/kernel/include/kernel/devices/storage/ram_disk/device.hpp
@@ -7,12 +7,12 @@
 
 #include <cstddef>
 
-namespace devices::storage::ram_disk
+namespace kernel::devices::storage::ram_disk
 {
   /**
    * @brief Block device for a boot module.
    */
-  struct ram_disk_device : block_device
+  struct device : block_device
   {
     /**
      * @brief Create a RAM disk for the @p module.
@@ -20,7 +20,7 @@ namespace devices::storage::ram_disk
      * @param major Device major number.
      * @param minor Device minor number.
      */
-    ram_disk_device(kapi::boot_modules::boot_module const & module, size_t major, size_t minor);
+    device(kapi::boot_modules::boot_module const & module, size_t major, size_t minor);
 
     /**
      * @brief Read one logical block into @p buffer.
@@ -47,6 +47,6 @@ namespace devices::storage::ram_disk
 
     kapi::boot_modules::boot_module m_boot_module{};
   };
-}  // namespace devices::storage::ram_disk
+}  // namespace kernel::devices::storage::ram_disk
 
 #endif
\ No newline at end of file
diff --git a/kernel/include/kernel/filesystem/dentry.hpp b/kernel/include/kernel/filesystem/dentry.hpp
index c28246f..fc85a7d 100644
--- a/kernel/include/kernel/filesystem/dentry.hpp
+++ b/kernel/include/kernel/filesystem/dentry.hpp
@@ -10,7 +10,7 @@
 #include <cstdint>
 #include <string_view>
 
-namespace filesystem
+namespace kernel::filesystem
 {
   struct dentry
   {
@@ -38,6 +38,6 @@ namespace filesystem
     kstd::shared_ptr<inode> m_inode;
     uint32_t m_flags{0};
   };
-}  // namespace filesystem
+}  // namespace kernel::filesystem
 
 #endif
\ No newline at end of file
diff --git a/kernel/include/kernel/filesystem/devfs/devfs_filesystem.hpp b/kernel/include/kernel/filesystem/devfs/devfs_filesystem.hpp
deleted file mode 100644
index 5559c2a..0000000
--- a/kernel/include/kernel/filesystem/devfs/devfs_filesystem.hpp
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_DEVFS_DEVFS_FILESYSTEM_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_DEVFS_DEVFS_FILESYSTEM_HPP
-
-#include "kernel/devices/device.hpp"
-#include "kernel/filesystem/filesystem.hpp"
-#include "kernel/filesystem/inode.hpp"
-
-#include <kstd/memory>
-#include <kstd/vector>
-
-#include <string_view>
-
-namespace filesystem::devfs
-{
-  struct devfs_filesystem : filesystem
-  {
-    auto mount(kstd::shared_ptr<devices::device> const & device) -> int override;
-    auto lookup(kstd::shared_ptr<inode> const & parent, std::string_view name) -> kstd::shared_ptr<inode> override;
-
-  private:
-    auto build_device_inode_table() -> void;
-  };
-}  // namespace filesystem::devfs
-
-#endif
\ No newline at end of file
diff --git a/kernel/include/kernel/filesystem/devfs/devfs_root_inode.hpp b/kernel/include/kernel/filesystem/devfs/devfs_root_inode.hpp
deleted file mode 100644
index b1d37ab..0000000
--- a/kernel/include/kernel/filesystem/devfs/devfs_root_inode.hpp
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_DEVFS_DEVFS_ROOT_INODE_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_DEVFS_DEVFS_ROOT_INODE_HPP
-
-#include "kernel/filesystem/inode.hpp"
-
-#include <cstddef>
-
-namespace filesystem::devfs
-{
-  struct devfs_root_inode : inode
-  {
-    devfs_root_inode();
-
-    auto read(void * buffer, size_t offset, size_t size) const -> size_t override;
-    auto write(void const * buffer, size_t offset, size_t size) -> size_t override;
-  };
-}  // namespace filesystem::devfs
-
-#endif
\ No newline at end of file
diff --git a/kernel/include/kernel/filesystem/devfs/filesystem.hpp b/kernel/include/kernel/filesystem/devfs/filesystem.hpp
new file mode 100644
index 0000000..5ec6221
--- /dev/null
+++ b/kernel/include/kernel/filesystem/devfs/filesystem.hpp
@@ -0,0 +1,26 @@
+#ifndef TEACH_OS_KERNEL_FILESYSTEM_DEVFS_FILESYSTEM_HPP
+#define TEACH_OS_KERNEL_FILESYSTEM_DEVFS_FILESYSTEM_HPP
+
+#include "kernel/devices/device.hpp"
+#include "kernel/filesystem/filesystem.hpp"
+#include "kernel/filesystem/inode.hpp"
+
+#include <kstd/memory>
+#include <kstd/vector>
+
+#include <string_view>
+
+namespace kernel::filesystem::devfs
+{
+  struct filesystem : kernel::filesystem::filesystem
+  {
+    auto mount(kstd::shared_ptr<devices::device> const & device) -> int override;
+    auto lookup(kstd::shared_ptr<kernel::filesystem::inode> const & parent, std::string_view name)
+        -> kstd::shared_ptr<kernel::filesystem::inode> override;
+
+  private:
+    auto build_device_inode_table() -> void;
+  };
+}  // namespace kernel::filesystem::devfs
+
+#endif
\ No newline at end of file
diff --git a/kernel/include/kernel/filesystem/devfs/inode.hpp b/kernel/include/kernel/filesystem/devfs/inode.hpp
new file mode 100644
index 0000000..9c11edf
--- /dev/null
+++ b/kernel/include/kernel/filesystem/devfs/inode.hpp
@@ -0,0 +1,19 @@
+#ifndef TEACH_OS_KERNEL_FILESYSTEM_DEVFS_INODE_HPP
+#define TEACH_OS_KERNEL_FILESYSTEM_DEVFS_INODE_HPP
+
+#include "kernel/filesystem/inode.hpp"
+
+#include <cstddef>
+
+namespace kernel::filesystem::devfs
+{
+  struct inode : kernel::filesystem::inode
+  {
+    inode();
+
+    auto read(void * buffer, size_t offset, size_t size) const -> size_t override;
+    auto write(void const * buffer, size_t offset, size_t size) -> size_t override;
+  };
+}  // namespace kernel::filesystem::devfs
+
+#endif
\ No newline at end of file
diff --git a/kernel/include/kernel/filesystem/device_inode.hpp b/kernel/include/kernel/filesystem/device_inode.hpp
index 0477969..7f044b0 100644
--- a/kernel/include/kernel/filesystem/device_inode.hpp
+++ b/kernel/include/kernel/filesystem/device_inode.hpp
@@ -8,7 +8,7 @@
 
 #include <cstddef>
 
-namespace filesystem
+namespace kernel::filesystem
 {
   struct device_inode : inode
   {
@@ -22,6 +22,6 @@ namespace filesystem
   private:
     kstd::shared_ptr<devices::device> m_device;
   };
-}  // namespace filesystem
+}  // namespace kernel::filesystem
 
 #endif
\ No newline at end of file
diff --git a/kernel/include/kernel/filesystem/ext2/ext2_block_group_descriptor.hpp b/kernel/include/kernel/filesystem/ext2/block_group_descriptor.hpp
index b0966da..a23c045 100644
--- a/kernel/include/kernel/filesystem/ext2/ext2_block_group_descriptor.hpp
+++ b/kernel/include/kernel/filesystem/ext2/block_group_descriptor.hpp
@@ -1,12 +1,12 @@
-#ifndef EXT2_BLOCK_GROUP_DESCRIPTOR_HPP
-#define EXT2_BLOCK_GROUP_DESCRIPTOR_HPP
+#ifndef TEACH_OS_KERNEL_FILESYSTEM_EXT2_BLOCK_GROUP_DESCRIPTOR_HPP
+#define TEACH_OS_KERNEL_FILESYSTEM_EXT2_BLOCK_GROUP_DESCRIPTOR_HPP
 
 #include <array>
 #include <cstdint>
 
-namespace filesystem::ext2
+namespace kernel::filesystem::ext2
 {
-  struct ext2_block_group_descriptor
+  struct block_group_descriptor
   {
     uint32_t block_bitmap;
     uint32_t inode_bitmap;
@@ -17,5 +17,5 @@ namespace filesystem::ext2
     std::array<uint8_t, 2> padding;
     std::array<uint8_t, 12> reserved;  // NOLINT(readability-magic-numbers)
   };
-}  // namespace filesystem::ext2
-#endif  // EXT2_BLOCK_GROUP_DESCRIPTOR_HPP
\ No newline at end of file
+}  // namespace kernel::filesystem::ext2
+#endif
\ No newline at end of file
diff --git a/kernel/include/kernel/filesystem/ext2/ext2_filesystem.hpp b/kernel/include/kernel/filesystem/ext2/filesystem.hpp
index 1445e5a..763cd1d 100644
--- a/kernel/include/kernel/filesystem/ext2/ext2_filesystem.hpp
+++ b/kernel/include/ker