--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/datasourcemodules/bluetoothgpspositioningmodule/btgpspsy/src/Utils/btgpsdiscovery.cpp	Tue Feb 02 01:50:39 2010 +0200
@@ -0,0 +1,218 @@
+// Copyright (c) 2008-2009 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:
+// btgpsdiscovery implementation
+// 
+//
+
+/**
+ @file btgpsdiscovery.cpp
+ @internal technology
+*/
+
+#include "btgpsdiscovery.h"
+#include "btgpssimstubs.h"
+
+
+CBTGPSDiscovery::CBTGPSDiscovery (MBTGPSSdpResultReceiver* aBTEngSdpResultReceiver)
+	{
+	iBTSdpResultReceiver = aBTEngSdpResultReceiver;
+	iChannel = 0;
+	iValid = EFalse;
+	}
+
+CBTGPSDiscovery* CBTGPSDiscovery::NewLC (MBTGPSSdpResultReceiver* aBTEngSdpResultReceiver)
+	{
+	CBTGPSDiscovery* self = new ( ELeave ) CBTGPSDiscovery(aBTEngSdpResultReceiver);
+	CleanupStack::PushL (self);
+	return self;
+	}
+
+CBTGPSDiscovery* CBTGPSDiscovery::NewL(MBTGPSSdpResultReceiver* aBTEngSdpResultReceiver)
+	{
+	CBTGPSDiscovery* self = CBTGPSDiscovery::NewLC (aBTEngSdpResultReceiver);
+	CleanupStack::Pop (self);
+	return self;
+	}
+
+CBTGPSDiscovery::~CBTGPSDiscovery ()
+	{
+	delete iSdpAgent;
+#ifdef	LBS_BTGPSPSY_SIM
+	delete iSdpAgentSim;
+#endif
+	}
+
+/**
+ * Starts an SDP query. The remote SDP database is searched for the value
+ * of the ProtocolDescriptorList attribute in a service record containing
+ * the specified UUID, the equivalent of an SDP ServiceAttributeSearch
+ * transaction with ProtocolDescriptorList as attribute. This can e.g. be
+ * used to search the remote RFCOMM channel. When completed, the results
+ * are passed back to the client through the callback interface method
+ * MBTEngSdpResultReceiver::AttributeSearchComplete().
+ * @param aAddr Target Bluetooth device address for the SDP query.
+ * @param aService The UUID to search for.
+ * @return KErrNone if successful, otherwise the error code indicating the error situation. 
+ */
+TInt CBTGPSDiscovery::RemoteProtocolChannelQueryL(const TBTDevAddr& aAddr, TInt aService)
+	{
+	if(iSdpAgent)
+		{
+		return KErrInUse;
+		}
+
+#ifdef	LBS_BTGPSPSY_SIM
+	// See if the device is simulated, in which case use the simulated SdpAgent.
+	// otherwise use the regular one.
+	iSdpAgentSim = CSdpAgentSim::NewL(*this);
+	if (iSdpAgentSim->GetChannelStart(aAddr, iChannel) != KErrNone) 
+#endif
+		{
+		CSdpAgent* sdpAgent = CSdpAgent::NewL(*this, aAddr);
+		CleanupStack::PushL(sdpAgent);
+		    
+		// create the attribute ID list to match against
+		CSdpSearchPattern* searchPattern = CSdpSearchPattern::NewL();
+		CleanupStack::PushL(searchPattern);
+		  
+		// search for BNEP, as it's the common field in all PAN records
+		searchPattern->AddL(aService);
+		  
+		// Set Record Filter copies searchPattern
+		sdpAgent->SetRecordFilterL(*searchPattern);
+		CleanupStack::PopAndDestroy(searchPattern);
+		
+		sdpAgent->NextRecordRequestL();
+		
+		// Now we have successfully issued the request we know that it will later be
+		// completed, so we can keep sdpAgent and it will be deleted on request
+		// completion.
+		CleanupStack::Pop(sdpAgent);
+		iSdpAgent = sdpAgent;
+		}
+	
+	return KErrNone;
+	}
+
+/**
+ * This function to return the protocol channel number from the
+ * result array of a ServiceAttributeSearch. This value can be used to
+ * obtain e.g. the remote RFCOMM channel after a RemoteProtocolChannelQueryL
+ * has completed.
+ * @param aResultArray The array containing the SDP attribute.
+ * @param aType On return, contains the channel number.
+ * @return KerrNone if successful, KerrArgument if the SDP attribute is not
+ * of type ProtocolDescriptorLis
+ */
+TInt CBTGPSDiscovery::ParseRfcommChannel(TInt& aType)
+	{
+	aType = iChannel;
+	return KErrNone;
+	}
+
+/** Called when an service record request (CSdpAgent::NextRecordRequestComplete()) 
+operation completes.
+
+@param aError KErrNone if successful;
+              KErrEof if there are no more SDP records left to be read; or an SDP error.
+@param aHandle Service record for which the query was made
+@param aTotalRecordsCount Total number of matching records
+@see CSdpAgent::NextRecordRequestL() */
+void CBTGPSDiscovery::NextRecordRequestComplete(TInt aError, TSdpServRecordHandle aHandle, TInt /*aTotalRecordsCount*/)
+	{
+	TInt err = aError;
+	
+	if(err == KErrNone) //more results available
+		{
+		iMatchesFound = ETrue;
+		// Check the attributes of the returned record to see if it's a U, GN, or NAP record    
+		TRAP(err,iSdpAgent->AttributeRequestL(aHandle, KSdpAttrIdProtocolDescriptorList));
+		
+		if(err == KErrNone)
+			{
+			return; 
+			}
+		}
+	        
+	//Request has completed or error has occured    
+	if(err != KErrEof)
+		{
+		// A 'real' error has occured, cancel the query
+		if(iSdpAgent)
+			{
+			iSdpAgent->Cancel();
+			}
+		iBTSdpResultReceiver->ServiceAttributeSearchComplete(err);
+		}
+	else
+		{
+		iBTSdpResultReceiver->ServiceAttributeSearchComplete(KErrEof);
+		}
+	}
+
+/** Called when an attribute request (CSdpAgent::AttributeRequestL()) wants to 
+pass up a result.
+
+@param aHandle Service record for which the query was made
+@param aAttrID ID of the attribute obtained
+@param aAttrValue Attribute value obtained
+@see CSdpAgent::AttributeRequestL() */
+void CBTGPSDiscovery::AttributeRequestResult(TSdpServRecordHandle /*aHandle*/, TSdpAttributeID aAttrID, CSdpAttrValue* aAttrValue)
+	{
+	if((aAttrID == KSdpAttrIdProtocolDescriptorList) && (aAttrValue->Type()==ETypeDES))
+		{
+		CSdpAttrValueDES* sdpProfileDesList = static_cast<CSdpAttrValueDES*>(aAttrValue);   
+		// cycle through the contents of the DES to find the remote role
+		TRAPD(err, sdpProfileDesList->AcceptVisitorL(*this));
+		if(KErrNone == err)
+			{
+			// Delete the attribute value now that we've finished with it   
+			delete aAttrValue;
+			// there shouldn't be another profile descriptor list, so we should now get AttributeRequestComplete() called
+			}
+		}
+	}
+
+/** Called when an attribute request (CSdpAgent::AttributeRequestL()) wants to 
+signal the completion of a attribute request.
+
+@param aHandle Service record for which the query was made
+@param aError an error
+@see CSdpAgent::AttributeRequestL() */
+void CBTGPSDiscovery::AttributeRequestComplete(TSdpServRecordHandle /*aHandle*/, TInt /*aError*/)
+	{
+	// examine the next record returned
+	TRAP_IGNORE(iSdpAgent->NextRecordRequestL());
+	}
+
+void CBTGPSDiscovery::VisitAttributeValueL(CSdpAttrValue &aValue, TSdpElementType aType)
+	{
+	if(iValid)
+		{
+		if(aType==ETypeUint)
+			{
+			iChannel = aValue.Uint();
+			iBTSdpResultReceiver->ServiceAttributeSearchComplete( KErrNone);
+			}
+		iValid = EFalse;
+		}
+	
+	if(aType==ETypeUUID)
+		{
+		if(aValue.UUID() == KRFCommUUID)
+			{
+			iValid = ETrue;
+			}
+		}
+	}