remove inode metadata

1 files changed, 48 insertions, 2 deletions

diff --git a/kernel/src/filesystem/device_inode.cpp b/kernel/src/filesystem/device_inode.cpp
index b9018b1..18e3b24 100644
--- a/kernel/src/filesystem/device_inode.cpp
+++ b/kernel/src/filesystem/device_inode.cpp
@@ -1,6 +1,52 @@
 #include "kernel/filesystem/device_inode.hpp"
 
+#include "kapi/system.hpp"
+
+#include "kernel/devices/device.hpp"
+#include "kernel/filesystem/inode.hpp"
+
+#include <kstd/memory>
+
+#include <cstddef>
+
 namespace filesystem
 {
-  // TODO BA-FS26: Implement device inode
-}
\ No newline at end of file
+  device_inode::device_inode(kstd::shared_ptr<devices::device> const & device)
+      : inode(inode_kind::device)
+      , m_device(device)
+  {
+    if (!device)
+    {
+      kapi::system::panic("[FILESYSTEM] device_inode constructed with null device.");
+    }
+  }
+
+  auto device_inode::backing_device() const -> kstd::shared_ptr<devices::device> const &
+  {
+    return m_device;
+  }
+
+  auto device_inode::read(void * /*buffer*/, size_t /*offset*/, size_t /*size*/) const -> size_t
+  {
+    if (!m_device)
+    {
+      kapi::system::panic("[FILESYSTEM] device_inode has null device.");
+    }
+
+    // TODO BA-FS26 use device file?
+    // return m_device->read(buffer, offset, size);
+    return 0;
+  }
+
+  auto device_inode::write(void const * /*buffer*/, size_t /*offset*/, size_t /*size*/) -> size_t
+  {
+    if (!m_device)
+    {
+      kapi::system::panic("[FILESYSTEM] device_inode has null device.");
+    }
+
+    // TODO BA-FS26 use device file?
+    // return m_device->write(buffer, offset, size);
+    return 0;
+  }
+}  // namespace filesystem
\ No newline at end of file