datasourcemodules/bluetoothgpspositioningmodule/btgpspsy/inc/RequestHandler/BTGPSRequestManager.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/datasourcemodules/bluetoothgpspositioningmodule/btgpspsy/inc/RequestHandler/BTGPSRequestManager.h Fri Jun 04 10:34:15 2010 +0100
@@ -0,0 +1,187 @@
+/*
+* 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 BTGPSREQUESTMANAGER_H
+#define BTGPSREQUESTMANAGER_H
+
+// INCLUDES
+
+#include <e32base.h>
+
+#include "BTGPSMessageListener.h"
+
+// CONSTANTS
+
+// MACROS
+
+// DATA TYPES
+
+// FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+class CBTGPSConnectManager;
+class CBTGPSConstantsManager;
+class MBTGPSLocationFixListener;
+class CBTGPSFix;
+class CBTGPSNmeaBuffer;
+
+// CLASS DECLARATION
+
+/**
+* This class defines locaiton request managers. It's responsible of
+* receiving NMEA sentence and retrieving fix information for sentence
+* stream. It also manage GSV sentence life time information.
+*
+*/
+class CBTGPSRequestManager: public CBase, private MBTGPSMessageListener
+ {
+ public:
+
+ /**
+ * Two-phase construction.
+ * @param aConnectManager Reference to connect manager.
+ */
+ static CBTGPSRequestManager * NewL(
+ CBTGPSConnectManager& aConnectManager,
+ CBTGPSConstantsManager& aConstantsManager);
+
+ /**
+ * Destructor
+ */
+ virtual ~CBTGPSRequestManager();
+
+ public:
+ /**
+ * Start to retrieve fix
+ */
+ void RetrieveFixL();
+
+ /**
+ * Stop retrieving fix
+ */
+ void StopRetrievingFix();
+
+ /**
+ * Receive last location
+ * @param aFix On return contains pointer to fix information
+ * @param aMaxAge Max age tath defined by client
+ * @param aAcceptPartial If the client accept partial updates.
+ */
+ TInt LastLocation(
+ const CBTGPSFix*& aFix,
+ const TTime& aMaxAge,
+ const TBool aAcceptPartial);
+
+ /**
+ * Invalid last location and GSV life time. This function is used
+ * by CBTGPSEnvChangeHandler. When system time is changed
+ * last location shall be invalidated.
+ */
+ void SystemTimeChange();
+
+ /**
+ * Add listener
+ * @param aListener Reference to listener
+ */
+ void AddListenerL(MBTGPSLocationFixListener& aListener);
+
+ /**
+ * Remove listener
+ * @param aListener Reference to listener
+ */
+ void RemoveListener(MBTGPSLocationFixListener& aListener);
+
+ /**
+ * Get previous NMEA buffer index
+ */
+ TInt GetPreviousNmeaBufferBottom() const;
+
+ private:
+ /**
+ * From MBTGPSMessageListener
+ */
+ void HandleMessage(const TBTGPSNmeaParser& aParser);
+
+ private:
+
+ /**
+ * Second phase of the construction
+ */
+ void ConstructL();
+
+ /**
+ * Private constructor
+ */
+ CBTGPSRequestManager(
+ CBTGPSConnectManager& aConnectManager,
+ CBTGPSConstantsManager& aConstantsManager);
+
+ /**
+ * Complete all request
+ */
+ void CompleteAllReqeust(TInt aErr);
+
+ /**
+ * Inform listners on new fix information
+ */
+ void InformListeners();
+
+ /**
+ * Timer callback
+ */
+ void TimerTick();
+
+ /**
+ * Static timer callback
+ */
+ static TInt TimerCallback(TAny* aAny);
+
+ private:
+ //Connect Manager
+ CBTGPSConnectManager& iConnectManager;
+
+ //Constants Manager
+ CBTGPSConstantsManager& iConstantsManager;
+
+ //Location fix listener
+ RArray<MBTGPSLocationFixListener*> iListenerArray;
+
+ //NMEA buffer. It's a FIFO circulate buffer that
+ //holds all received NMEA message
+ CBTGPSNmeaBuffer* iNmeaBuffer;
+
+ //Index to the previous bottom in NMEA buffer
+ TInt iPrevBottom;
+
+ //Current Fix
+ CBTGPSFix* iFix;
+
+ //Last fix
+ CBTGPSFix* iLastFix;
+
+ //Start to receive message
+ TBool iReceivingMessage;
+
+ //GSV Timer
+ CPeriodic* iTimer;
+ };
+#endif
+// End of File
+