mtpdataproviders/mtppictbridgedp/pictbridgeengine/src/dpsstatemachine.cpp
changeset 29 3ae5cb0b4c02
child 47 63cf70d3ecd8
equal deleted inserted replaced
20:6e82ae192c3a 29:3ae5cb0b4c02
       
     1 /*
       
     2 * Copyright (c) 2006, 2007 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:  This class implements the dps state machine. 
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include <e32debug.h>
       
    20 #include "dpsstatemachine.h"
       
    21 #include "dpsscriptreceiver.h"
       
    22 #include "dpsscriptsender.h"
       
    23 #include "dpstransaction.h"
       
    24 #include "dpsconst.h"
       
    25 #include "pictbridge.h"
       
    26 #include "dpsparam.h"
       
    27 #include "dpsoperation.h"
       
    28 
       
    29 #ifdef _DEBUG
       
    30 #	define IF_DEBUG(t) {RDebug::t;}
       
    31 #else
       
    32 #	define IF_DEBUG(t)
       
    33 #endif
       
    34 
       
    35 // ---------------------------------------------------------------------------
       
    36 // 
       
    37 // ---------------------------------------------------------------------------
       
    38 //
       
    39 CDpsStateMachine* CDpsStateMachine::NewL(CDpsEngine* aEngine)
       
    40     {
       
    41     IF_DEBUG(Print(_L("CDpsStateMachine::NewL")));
       
    42     CDpsStateMachine* self = new(ELeave) CDpsStateMachine(aEngine);
       
    43     CleanupStack::PushL(self);
       
    44     self->ConstructL();
       
    45     CleanupStack::Pop();
       
    46     return self;	
       
    47     }
       
    48 	
       
    49 // ---------------------------------------------------------------------------
       
    50 // 
       
    51 // ---------------------------------------------------------------------------
       
    52 //
       
    53 CDpsStateMachine::~CDpsStateMachine()
       
    54     {
       
    55     IF_DEBUG(Print(_L(">>>~CDpsStateMachine")));
       
    56     delete iTrader;
       
    57     iTrader = NULL;
       
    58     delete iScriptReceiver;
       
    59     iScriptReceiver = NULL;
       
    60     delete iScriptSender;
       
    61     iScriptSender = NULL;
       
    62     
       
    63     delete iIdleState; iIdleState = NULL;
       
    64     delete iSendingReqState; iSendingReqState = NULL;
       
    65     delete iWaitingRepState; iWaitingRepState = NULL;
       
    66     delete iSendingRepState; iSendingRepState = NULL;	
       
    67     IF_DEBUG(Print(_L("<<<~CDpsStateMachine")));	
       
    68     }
       
    69 
       
    70 // ---------------------------------------------------------------------------
       
    71 // 
       
    72 // ---------------------------------------------------------------------------
       
    73 //	
       
    74 CDpsStateMachine::CDpsStateMachine(CDpsEngine* aEngine) : 
       
    75     iEngine(aEngine),iOperation(EDpsOpEmpty), iEvent(EDpsEvtEmpty), 
       
    76     iCurError(KErrNone)
       
    77     {
       
    78     IF_DEBUG(Print(_L(">>>CDpsStateMachine::Ctor")));
       
    79     
       
    80     IF_DEBUG(Print(_L("<<<CDpsStateMachine::Ctor")));
       
    81     }
       
    82 
       
    83 // ---------------------------------------------------------------------------
       
    84 // 
       
    85 // ---------------------------------------------------------------------------
       
    86 //
       
    87 void CDpsStateMachine::ConstructL()
       
    88     {
       
    89     IF_DEBUG(Print(_L(">>>CDpsStateMachine::ConstructL")));	
       
    90     iIdleState = new(ELeave) TDpsIdleState(this);
       
    91     iSendingReqState = new(ELeave) TDpsSendingReqState(this);
       
    92     iWaitingRepState = new(ELeave) TDpsWaitingRepState(this);
       
    93     iSendingRepState = new(ELeave) TDpsSendingRepState(this);
       
    94     iCurState = iIdleState;
       
    95     iTrader = CDpsTransaction::NewL(this);
       
    96     iScriptReceiver = CDpsScriptReceiver::NewL(this);
       
    97     iScriptSender = CDpsScriptSender::NewL(this);	
       
    98     IF_DEBUG(Print(_L("<<<CDpsOperator::ConstructL")));	
       
    99     }
       
   100 
       
   101 // ---------------------------------------------------------------------------
       
   102 // 
       
   103 // ---------------------------------------------------------------------------
       
   104 //
       
   105 void CDpsStateMachine::StartTransactionL(TMDpsOperation* aRequest)
       
   106     {
       
   107     IF_DEBUG(Print(_L(">>>CDpsStateMachine::StartTransaction")));
       
   108     iMOperation = aRequest;
       
   109     iOperation = (TDpsOperation)iMOperation->iOperation;    
       
   110     iTrader->CreateRequestL(aRequest);
       
   111     iCurState = iSendingReqState;
       
   112     IF_DEBUG(Print(_L("<<<CDpsStateMachine::StartTransaction")));
       
   113     }
       
   114 
       
   115 // ---------------------------------------------------------------------------
       
   116 // 
       
   117 // ---------------------------------------------------------------------------
       
   118 //
       
   119 void CDpsStateMachine::Initialize()
       
   120     {
       
   121     IF_DEBUG(Print(_L(">>>CDpsStateMachine::Initialize")));
       
   122     iOperation = EDpsOpEmpty;
       
   123     iEvent = EDpsEvtEmpty;
       
   124     iCurError = KErrNone;
       
   125     if (CurState() != IdleState())
       
   126         {
       
   127         SetState(IdleState());
       
   128         }
       
   129     IF_DEBUG(Print(_L("<<<CDpsStateMachine::Initialize")));    
       
   130     }