--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetooth/btexample/example/sdap/inc/exchange.h	Fri Jan 15 08:13:17 2010 +0200
@@ -0,0 +1,90 @@
+// 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:
+//
+
+#ifndef EXCHANGE_H
+#define EXCHANGE_H
+
+#include <bt_sock.h>
+#include <btsdp.h>
+
+class CExchanger : public CBase
+/**
+Abstract base class for protocols that can locate compatible devices.
+@internalComponent
+*/
+{
+	public:
+		/**
+		@internalComponent
+		Begins a search for compatible devices.  Until successful
+		completion, no other function should be called as the data
+		may be invalid.
+		@param aStatus
+		A TRequestStatus object that is signalled when the search
+		completes.  It should be used from within an active object
+		*/
+		virtual void LookForPeersL(TRequestStatus& aStatus) = 0;
+		/**
+		@internalComponent
+		@return The number of compatible peer devices found
+		*/
+		virtual TInt Count() = 0;
+		/**
+		@internalComponent
+		Selects the first compatible device that was found
+		*/
+		virtual void First() = 0;
+		/**
+		@internalComponent
+		Retrieves the selected device, and selects the next device
+		that was found.
+		@param aPtr
+		A reference to a TNameEntry* pointer.  On success, it is filled
+		in with a pointer to a device that was found.  
+		@return KErrNotFound on failure, KErrNone on success.
+		*/
+		virtual TInt Next(TNameEntry*& aPtr) = 0;
+	protected:
+		RSocketServ iSockSession;
+	private:
+};
+
+class CBluetoothSeeker;
+class CBluetoothExchanger : public CExchanger
+/**
+@internalComponent
+Implementation of CExchanger for bluetooth.  Uses inquiry and the SDP 
+protocol to retrieve a filtered list of all devices in range that support
+the service, as defined by UUID
+*/
+{
+	public:
+		IMPORT_C static CBluetoothExchanger* NewL(const TUUID &aUUID);
+		IMPORT_C static CBluetoothExchanger* NewLC(const TUUID &aUUID);
+		~CBluetoothExchanger();
+		//virtual implementations
+		IMPORT_C virtual void LookForPeersL(TRequestStatus& aStatus);
+		IMPORT_C virtual TInt Count();
+		IMPORT_C virtual void First();
+		IMPORT_C virtual TInt Next(TNameEntry*& aPtr);
+	private:
+		void ConstructL(const TUUID &aUUID);
+		RSdp iSdpSession;
+		RSdpDatabase iSdpDb;
+		CBluetoothSeeker *iSeeker;
+		TInt iDeviceIndex;
+};
+
+#endif //EXCHANGE_H