--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/datacommsserver/esockserver/inc/ss_nodemessages_flow.h	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,120 @@
+// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// THIS API IS INTERNAL TO NETWORKING AND IS SUBJECT TO CHANGE AND NOT FOR EXTERNAL USE
+// 
+//
+
+/**
+ @file
+ @internalAll
+*/
+
+#ifndef SYMBIAN_NODEMESSAGES_FLOW_H
+#define SYMBIAN_NODEMESSAGES_FLOW_H
+
+namespace ESock
+{
+
+//any new enum added here needs to go into one of the utracedecoder definition files
+//NEVER INSERT ANYTHING IN HERE ONLY ADD THE PENALTY IS SUDDEN DEATH!
+class TCFFlow : public TCFDataClient
+	{
+private:
+	enum
+	{
+	ECFRejoin                       = 1,
+ 	ECFBlock                        = 2,
+ 	ECFUnBlock                      = 3
+	};
+
+protected:
+	TCFControlProvider& iControlProvider;
+
+public:
+    enum { ERealmId = 0x10285F45 }; //UID allocated on 4/6/08 from KUidNodeMessageRealms
+    /*==========================================================================
+    <<Keys:>>
+    [Name]:      <messagename>
+    [Semantics]: Message semantics
+
+    [Type]:      Request for <responsemsg>|Response to <requestmsg>|Notification/[Peerless]
+                 Where:
+                 Request      - request to perform an action. Sender should expect <responsemsg>
+                                to ackowledge the completion of the action.
+                 Response     - acknowledgement that the previous request is now completed.
+                 Notification - a one-off message flagging an event.
+                 Peerless     - the message is peerless, i.e.: the sender doesn't have to
+                                be the recipient's client.
+    [Fallible]:  Yes|No
+                 Only applicable to requests and denotes whether the request can fail or not,
+                 or, in other words, whether the request can be completed to with TError.
+
+    [Structure]:
+    Every message defined in this realm has at least:
+    param        iSender      - the message sender
+    param        iActivityId  - depending on the message type:
+                 Request      - the activity id the response should be addressed to.
+                                Request senders fill up this param to match the response
+                                with the local activity. Activity id on the sender side
+                                should uniquelly identify the activity expecting the response.
+                 Response     - the activity on the recipient side expecting this response.
+                                the activityid to put here has been previously conveyed
+                                with the request.
+                 Notification - ignored.
+    ===========================================================================*/
+
+    /*==========================================================================
+    [Name]:      TRejoin
+    [Semantics]: Notification about a new control provider. Existing control provider has
+                 typically migrated the recipient to a new control provider. The recpient
+                 should quietly change its control provider reference.
+
+    [Type]:      Notification
+
+    [Structure]:
+    param:       iNodeId - the new control provider.
+    ===========================================================================*/
+    typedef Messages::TMessageSigNodeId<ECFRejoin, TCFFlow::ERealmId> TRejoin;
+
+    /*==========================================================================
+    [Name]:      TBlock
+    [Semantics]: Flow control. Sent to a dataclient to request a temporary stop.
+                 Dataclients performs best effort flow control. This is NOT SUPPORTED
+                 as standard, please check the approprate flow before using this messsage
+
+    [Type]:      Notification.
+    [Fallible]:  No.
+
+    [Structure]:
+    ===========================================================================*/
+    typedef Messages::TMessageSigVoid<ECFBlock, TCFFlow::ERealmId> TBlock;
+
+    /*==========================================================================
+    [Name]:      TUnBlock
+    [Semantics]: Flow control. Opposite of TBlock. Again this is NOT SUPPORTED
+    			 as standard by all flows.
+
+    [Type]:      Notification.
+    [Fallible]:  No.
+
+    [Structure]:
+    ===========================================================================*/
+    typedef Messages::TMessageSigVoid<ECFUnBlock, TCFFlow::ERealmId> TUnBlock;
+	};
+
+} //namespace esock
+
+#endif
+//SYMBIAN_NODEMESSAGES_FLOW_H
+