refactor XMPP client

Assistant/NetMessager.hs

@@ -0,0 +1,28 @@
+{- git-annex assistant out of band network messager interface
+ -
+ - Copyright 2012 Joey Hess <joey@kitenet.net>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+module Assistant.NetMessager where
+
+import Assistant.Common
+import Assistant.Types.NetMessager
+
+import Control.Concurrent.STM
+import Control.Concurrent.MSampleVar
+
+sendNetMessage :: NetMessage -> Assistant ()
+sendNetMessage m = 
+	(atomically . flip writeTChan m) <<~ (netMessages . netMessagerControl)
+
+waitNetMessage :: Assistant (NetMessage)
+waitNetMessage = (atomically . readTChan) <<~ (netMessages . netMessagerControl)
+
+notifyNetMessagerRestart :: Assistant ()
+notifyNetMessagerRestart =
+	flip writeSV () <<~ (netMessagerRestart . netMessagerControl)
+
+waitNetMessagerRestart :: Assistant ()
+waitNetMessagerRestart = readSV <<~ (netMessagerRestart . netMessagerControl)