diff -r 000000000000 -r 6474c204b198 ipc/ipdl/msgtype-components
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/ipdl/msgtype-components	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,13 @@
+#!/usr/bin/python
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+import sys
+
+msgid = int(sys.argv[1])
+protocol = (msgid >> 16)
+msg = (msgid - (protocol << 16))
+
+print 'protocol', protocol, 'message', msg