diff --git a/src/action-log.h b/src/action-log.h
new file mode 100644
index 0000000..6827cba
--- /dev/null
+++ b/src/action-log.h
@@ -0,0 +1,51 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2012-2013 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ *	   Zhenkai Zhu <zhenkai@cs.ucla.edu>
+ */
+
+#ifndef ACTION_LOG_H
+#define ACTION_LOG_H
+
+#include "sync-log.h"
+
+class ActionLog : public SyncLog
+{
+public:
+  ActionLog (const std::string &path, const std::string &localName);
+
+  
+  
+  
+  void
+  AddActionUpdate (const std::string &filename,
+                        const Hash &hash,
+                        const std::string &atime, const std::string &mtime, const std::string &ctime,
+                        int mode);
+
+  void
+  AddActionMove (const std::string &oldFile, const std::string &newFile);
+
+  void
+  AddActionDelete (const std::string &filename);
+  
+protected:
+  std::string m_localName;
+};
+
+#endif // ACTION_LOG_H