1 /*

     2 * Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 #ifndef BTGPSMESSAGESENDER_H

    22 #define BTGPSMESSAGESENDER_H

    23 

    24 //  INCLUDES

    25 

    26 #include <e32base.h>

    27 #include <badesca.h>

    28 #include "BTGPSDeviceListener.h"

    29 

    30 

    31 // CONSTANTS

    32 /**

    33 * The size of the output buffer size. This

    34 * have to be longer than longest NMEA message

    35 */

    36 const TInt KSendMessageSize = 200;

    37 

    38 

    39 // MACROS

    40 

    41 // DATA TYPES

    42 

    43 // FUNCTION PROTOTYPES

    44 

    45 // FORWARD DECLARATIONS

    46 class RSocket;

    47 class CBTGPSDeviceManager;

    48 

    49 // CLASS DECLARATION

    50 

    51 /**

    52 *  This class is used to send messages to connected BT device. 

    53 *  It doesn't garentee the message can be received from connected

    54 *  BT device. The message are buffered if necessary to prevent

    55 *  jams on BT connection.

    56 *  

    57 */

    58 class CBTGPSMessageSender: public CActive, private MBTGPSDeviceListener

    59     {

    60     public: 

    61 

    62         /**

    63         * Two-phase construction.

    64         * @param aSocket Reference to RSocket.

    65         * @param aDeviceManager Reference to device manager

    66         */

    67         static CBTGPSMessageSender * NewL(

    68             RSocket& aSocket,

    69             CBTGPSDeviceManager& aDeviceManager);

    70 

    71         /**

    72         * Destructor

    73         */

    74         virtual ~CBTGPSMessageSender();

    75         

    76         /**

    77         * Send message

    78         * @param aMsg Message to be sent.

    79         */

    80         void SendL(const TDesC8& aMsg);

    81 

    82     private:

    83         /**

    84         * From CActive

    85         */

    86         virtual void RunL();

    87         

    88         /**

    89         * From CActive

    90         */

    91         virtual void DoCancel();

    92         

    93         /**

    94         * From CActive

    95         */

    96         virtual TInt RunError(TInt aError);

    97         

    98         /**

    99         * From MBTGPSDeviceListener

   100         */

   101         virtual void BTDeviceStatusChanged(

   102             TInt aConnectStatus, 

   103             TInt aDeviceType,

   104             TInt aErr=KErrNone);

   105 

   106     private:

   107 

   108         /**

   109         * Second phase of the construction

   110         */

   111         void ConstructL();

   112 

   113         /**

   114         * Private constructor

   115         */

   116         CBTGPSMessageSender(

   117             RSocket& aSocket,

   118             CBTGPSDeviceManager& aDeviceManager);

   119         

   120         /**

   121         * Start timer

   122         */

   123         void StartTimer();

   124         

   125         /**

   126         * Timer callback

   127         */

   128         void TimerTick();

   129         

   130         /**

   131         * Static timer callback

   132         */

   133         static TInt TimerCallback(TAny* aAny);

   134         

   135     private:

   136         //Socket

   137         RSocket& iSocket;

   138         

   139         //Device manager

   140         CBTGPSDeviceManager& iDeviceManager;

   141         

   142         //Sending buffer

   143         CDesC8ArrayFlat* iBuffer;

   144         

   145         //Timer

   146         CPeriodic* iTimer;

   147     };

   148 #endif

   149 // End of File

   150