realtimenetprots/sipfw/SIP/ConnectionMgr/src/CStateModel.cpp
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     1 // Copyright (c) 2004-2009 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 // Name        : CStateModel.cpp
       
    15 // Part of     : ConnectionMgr
       
    16 // Implementation
       
    17 // Version     : SIP/4.0
       
    18 //
       
    19 
       
    20 
       
    21 
       
    22 #include "CStateModel.h"
       
    23 #include "TStateInit.h"
       
    24 #include "TStateInactiveMonitoring.h"
       
    25 #include "TStateInactiveConnecting.h"
       
    26 #include "TStateActiveResolving.h"
       
    27 #include "TStateActiveResolved.h"
       
    28 #include "TStateSuspended.h"
       
    29 #include "TStateUnavailable.h"
       
    30 #include "msipconnectioncontext.h"
       
    31 #include "SipLogs.h"
       
    32 
       
    33 // ----------------------------------------------------------------------------
       
    34 // CStateModel::NewL
       
    35 // ----------------------------------------------------------------------------
       
    36 //
       
    37 CStateModel* CStateModel::NewL( MSIPConnectionContext& aContext,
       
    38 						  		MTimerManager& aTimer )
       
    39 	{
       
    40 	CStateModel* self = new( ELeave ) CStateModel( aContext, aTimer );
       
    41 
       
    42 	CleanupStack::PushL( self );
       
    43 	self->ConstructL();
       
    44 	CleanupStack::Pop( self );
       
    45 
       
    46 	return self;
       
    47 	}
       
    48 
       
    49 // ----------------------------------------------------------------------------
       
    50 // CStateModel::~CStateModel
       
    51 // ----------------------------------------------------------------------------
       
    52 //
       
    53 CStateModel::~CStateModel()
       
    54 	{
       
    55 	// Lets not call State() if we are not initialized properly
       
    56 	if( iStates.Count() == EMaxStates )
       
    57 		{
       
    58 		State().Exit();
       
    59 		}
       
    60 	}
       
    61 
       
    62 // ----------------------------------------------------------------------------
       
    63 // CStateModel::SendL
       
    64 // ----------------------------------------------------------------------------
       
    65 //
       
    66 void CStateModel::SendL( const TSIPTransportParams& aParams,
       
    67                          CSIPRequest& aRequest,
       
    68                          TBool aForceUDP,
       
    69                          const CUri8* aOutboundProxy,
       
    70 						 const TInetAddr& aRemoteAddr,
       
    71 						 TRequestStatus& aStatus )
       
    72 	{
       
    73 	State().SendL( 
       
    74 	    aParams, aRequest, aForceUDP, aOutboundProxy, aRemoteAddr, aStatus );
       
    75 	}
       
    76 
       
    77 // ----------------------------------------------------------------------------
       
    78 // CStateModel::SendL
       
    79 // ----------------------------------------------------------------------------
       
    80 //
       
    81 void CStateModel::SendL( const TSIPTransportParams& aParams,
       
    82                          CSIPResponse& aResponse,
       
    83 						 TTransactionId aId,
       
    84 						 TRequestStatus& aStatus )
       
    85 	{
       
    86 	State().SendL( aParams, aResponse, aId, aStatus );
       
    87 	}
       
    88 
       
    89 // ----------------------------------------------------------------------------
       
    90 // CStateModel::StateValue
       
    91 // ----------------------------------------------------------------------------
       
    92 //
       
    93 MStateModel::TState CStateModel::StateValue() const
       
    94 	{
       
    95 	return iStateValue;
       
    96 	}
       
    97 
       
    98 // ----------------------------------------------------------------------------
       
    99 // CStateModel::EnterState
       
   100 // ----------------------------------------------------------------------------
       
   101 //
       
   102 void CStateModel::EnterState( MStateModel::TState aState, TInt aError )
       
   103 	{ 
       
   104     __SIP_INT_LOG2( "CStateModel::EnterState(state,error)", aState, aError )	
       
   105 
       
   106 	// Exit the old state
       
   107 	State().Exit();
       
   108 
       
   109 	// Select next state, notify context
       
   110 	iStateValue = aState;
       
   111 	iContext.StateModelChanged( aState );
       
   112 
       
   113 	// Enter the next state
       
   114 	State().Enter( aError );
       
   115 	}
       
   116 
       
   117 // ----------------------------------------------------------------------------
       
   118 // CStateModel::NetworkStateChanged
       
   119 // ----------------------------------------------------------------------------
       
   120 //
       
   121 void CStateModel::NetworkStateChanged( 
       
   122     MSIPNetworkObserver::TNetworkState aState,
       
   123     TInt aError )
       
   124 	{
       
   125 	__SIP_INT_LOG2( "CStateModel::NetworkStateChanged(state,error)", 
       
   126 	                aState, aError )
       
   127 	iError = aError;
       
   128 	State().NetworkStateChanged( aState, aError );
       
   129 	}
       
   130 
       
   131 // ----------------------------------------------------------------------------
       
   132 // CStateModel::State
       
   133 // ----------------------------------------------------------------------------
       
   134 //
       
   135 TStateBase& CStateModel::State() const
       
   136 	{
       
   137 	return const_cast< TStateBase& >( iStates.At( iStateValue ) );
       
   138 	}
       
   139 
       
   140 // ----------------------------------------------------------------------------
       
   141 // CStateModel::Error
       
   142 // ----------------------------------------------------------------------------
       
   143 //
       
   144 TInt CStateModel::Error() const
       
   145 	{
       
   146 	return iError;
       
   147 	}
       
   148 
       
   149 // ----------------------------------------------------------------------------
       
   150 // CStateModel::CStateModel
       
   151 // ----------------------------------------------------------------------------
       
   152 //
       
   153 CStateModel::CStateModel( MSIPConnectionContext& aContext,
       
   154 						  MTimerManager& aTimer )
       
   155 	: iContext( aContext ), iTimer( aTimer ), iStates( EMaxStates ),
       
   156 	  iStateValue( MStateModel::EUnavailable ),iError(KErrNone)
       
   157 	{
       
   158 	}
       
   159 
       
   160 // ----------------------------------------------------------------------------
       
   161 // CStateModel::ConstructL
       
   162 // ----------------------------------------------------------------------------
       
   163 //
       
   164 void CStateModel::ConstructL()
       
   165 	{
       
   166 	iStates.AppendL( TStateInit( *this, iContext ),
       
   167 					 sizeof( TStateInit ) );
       
   168 	iStates.AppendL( TStateInactiveMonitoring( *this, iContext,iTimer ),
       
   169 					 sizeof( TStateInactiveMonitoring ) );
       
   170 	iStates.AppendL( TStateInactiveConnecting( *this, iContext, iTimer ),
       
   171 					 sizeof( TStateInactiveConnecting ) );
       
   172 	iStates.AppendL( TStateActiveResolving( *this, iContext, iTimer ),
       
   173 					 sizeof( TStateActiveResolving ) );
       
   174 	iStates.AppendL( TStateActiveResolved( *this, iContext ),
       
   175 					 sizeof( TStateActiveResolved ) );
       
   176 	iStates.AppendL( TStateSuspended( *this, iContext ),
       
   177 					 sizeof( TStateSuspended ) );
       
   178 	iStates.AppendL( TStateUnavailable( *this, iContext ),
       
   179 					 sizeof( TStateUnavailable ) );
       
   180 	}