1 files changed, 35 insertions, 0 deletions
diff --git a/kernel/src/filesystem/open_file_description.cpp b/kernel/src/filesystem/open_file_description.cpp
new file mode 100644
index 0000000..ff4d678
--- /dev/null
+++ b/kernel/src/filesystem/open_file_description.cpp
@@ -0,0 +1,35 @@
+#include "kernel/filesystem/open_file_description.hpp"
+
+#include "kernel/filesystem/file.hpp"
+
+#include <kstd/memory>
+#include <kstd/os/error.hpp>
+
+#include <cstddef>
+
+namespace filesystem
+{
+  open_file_description::open_file_description(kstd::shared_ptr<file> const & file)
+      : m_file(file)
+      , m_offset(0)
+  {
+    if (!file)
+    {
+      kstd::os::panic("[FILESYSTEM] open_file_description constructed with null file.");
+    }
+  }
+
+  auto open_file_description::read(void * buffer, size_t size) -> size_t
+  {
+    auto read_bytes = m_file->read(buffer, m_offset, size);
+    m_offset += read_bytes;
+    return read_bytes;
+  }
+
+  auto open_file_description::write(void const * buffer, size_t size) -> size_t
+  {
+    auto written_bytes = m_file->write(buffer, m_offset, size);
+    m_offset += written_bytes;
+    return written_bytes;
+  }
+}  // namespace filesystem
+\ No newline at end of file