1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Definition of the PSY request channel component.

    15 // 

    16 //

    17 

    18 #ifndef CPSYREQUESTCHANNEL_H_

    19 #define CPSYREQUESTCHANNEL_H_

    20 

    21 #include "lbsnetinternalapi.h"

    22 #include "LbsPsyNgMsgs.h"

    23 #include "requestmessagebuffer.h"

    24 

    25 /**

    26 Observer class to be used by the Network Gateway to inform it

    27 when messages are deivered from a Network PSY.

    28 */

    29 class MPsyRequestObserver

    30     {

    31 public:

    32     virtual void ProcessPsyMessage(const TLbsNetInternalMsgBase& aMessage) = 0;

    33     };

    34 

    35 /**

    36 Provides an API for use by Network PSYs to the Network Gateway.

    37 

    38 The creator of a CPsyRequestChannel should pass in the channel it

    39 wishes the object to write to and read from.

    40 */

    41 class CPsyRequestChannel : public CActive, public MLbsNetChannelObserver

    42     {

    43 public:

    44     static CPsyRequestChannel* NewL(MPsyRequestObserver& aObserver, TUint aChannel);

    45     ~CPsyRequestChannel();

    46     

    47     // from CActive

    48     void RunL();

    49     void DoCancel();

    50     TInt RunError(TInt aError);

    51     

    52     // Send a message to a PSY

    53     void SendNetworkResponse(const TLbsNetInternalMsgBase& aMessage);

    54     

    55     // from MLbsNetChannelObserver : process a message from a PSY

    56     void ProcessNetChannelMessage(RLbsNetChannel::TLbsNetChannelId aChannelId, const TLbsNetInternalMsgBase& aMessage);

    57     

    58 private:

    59     CPsyRequestChannel(MPsyRequestObserver& aObserver);

    60     void ConstructL(TUint aChannel);

    61     void SendMessage(const TLbsNetInternalMsgBase& aMessage);

    62     void SendNextBufferedMessage();

    63     

    64 private:

    65     CRequestMessageBuffer* iMsgBuffer;

    66     MPsyRequestObserver& iObserver;

    67     RLbsNetChannel iPsyResponseChannel;

    68     };

    69 

    70 #endif /* CPSYREQUESTCHANNEL_H_ */