1 files changed, 21 insertions, 0 deletions
diff --git a/src/record.rs b/src/record.rs
new file mode 100644
index 0000000..91db32e
--- /dev/null
+++ b/src/record.rs
@@ -0,0 +1,21 @@
+// Copyright 2021 Colin Finck <colin@reactos.org>
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+use binread::BinRead;
+
+const UPDATE_SEQUENCE_ELEMENT_SIZE: u32 = 2;
+
+#[allow(unused)]
+#[derive(BinRead, Clone, Debug)]
+pub(crate) struct RecordHeader {
+    pub(crate) signature: [u8; 4],
+    update_sequence_array_offset: u16,
+    update_sequence_array_count: u16,
+    logfile_sequence_number: u64,
+}
+
+impl RecordHeader {
+    pub(crate) fn update_sequence_array_size(&self) -> u32 {
+        self.update_sequence_array_count as u32 * UPDATE_SEQUENCE_ELEMENT_SIZE
+    }
+}