1 files changed, 19 insertions, 0 deletions
diff --git a/src/memory/file_handle.rs b/src/memory/file_handle.rs
new file mode 100644
index 0000000..0da2ed2
--- /dev/null
+++ b/src/memory/file_handle.rs
@@ -0,0 +1,19 @@
+use crate::AyaFS;
+use std::sync::atomic::Ordering;
+
+impl AyaFS {
+    pub(crate) fn allocate_file_descriptor(
+        &mut self,
+        inode_index: usize,
+        read: bool,
+        write: bool,
+    ) -> u64 {
+        let fd = self.next_file_handle.fetch_add(1, Ordering::SeqCst);
+        self.file_handle_map.insert(fd, (inode_index, read, write));
+        fd
+    }
+
+    pub(crate) fn get_inode_from_fd(&self, file_descriptor: u64) -> Option<(usize, bool, bool)> {
+        self.file_handle_map.get(&file_descriptor).copied()
+    }
+}