networkcontrol/ipnetworklayer/src/IPProtoDeMux.cpp
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     1 // Copyright (c) 2007-2009 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 // IPProto demultiplexor implementation
       
    15 // 
       
    16 //
       
    17 
       
    18 /**
       
    19  @file
       
    20  @internalComponent
       
    21 */
       
    22 
       
    23 #include <nifmbuf.h>
       
    24 #include "IPProtoDeMux.h"
       
    25 
       
    26 CIPProtoBinder::CIPProtoBinder(CIPShimSubConnectionFlow& aFlow)
       
    27 	:iBinderControl(NULL),
       
    28 	 iLowerControl(NULL),
       
    29 	 iFlow(aFlow),
       
    30 	 iNif(NULL)
       
    31 	{    
       
    32 	
       
    33 	}
       
    34 
       
    35 
       
    36 CIPProtoBinder* CIPProtoBinder::NewL(CIPShimSubConnectionFlow& aFlow, const TDesC8& aProtocolName)
       
    37 	{
       
    38 	CIPProtoBinder* me = new (ELeave) CIPProtoBinder(aFlow);
       
    39 	me->SetProtocolName(aProtocolName);
       
    40     return me;
       
    41 	}
       
    42 	
       
    43 void CIPProtoBinder::StartL()
       
    44 	{
       
    45 	ASSERT(iNif);
       
    46 	iNif->StartL();
       
    47 	}
       
    48 
       
    49 CIPProtoBinder::~CIPProtoBinder()
       
    50 	{
       
    51 	ASSERT(iNif == NULL); // should have been unbound by this stage
       
    52 	}
       
    53 
       
    54 void CIPProtoBinder::BindL(CIPShimIfBase* aNif)
       
    55 	{
       
    56 	__CFLOG_2(KIPProtoTag1, KIPProtoTag2, _L("CIPProtoBinder %08x:\tBindL(%08x)"), this, aNif); 
       
    57 	ASSERT(iNif == NULL); // shouldn't be binding twice
       
    58 	iNif = aNif;
       
    59 	}
       
    60 
       
    61 void CIPProtoBinder::Unbind()
       
    62 	{
       
    63 	__CFLOG_1(KIPProtoTag1, KIPProtoTag2, _L("CIPProtoBinder %08x:\tUnbind()"), this); 
       
    64 	ASSERT(iNif);
       
    65 	iNif = NULL;
       
    66 	}
       
    67 
       
    68 void CIPProtoBinder::BindToLowerFlowL(ESock::MFlowBinderControl& aLowerBinderControl)
       
    69 	{
       
    70 	ASSERT(iNif);
       
    71 
       
    72 	__CFLOG_2(KIPProtoTag1, KIPProtoTag2, _L8("CIPProtoBinder %08x:\tBindToLowerFlowL(): protocol '%S'"), this, &iNif->ProtocolName()); 
       
    73 
       
    74 	iBinderControl = &aLowerBinderControl;
       
    75 	iLowerControl = iBinderControl->GetControlL(iNif->ProtocolName());
       
    76 	iLowerDataSender = iBinderControl->BindL(iNif->ProtocolName(), this, this);
       
    77 	}	
       
    78 	
       
    79 void CIPProtoBinder::UnbindFromLowerFlow()
       
    80 	{
       
    81 	__CFLOG_1(KIPProtoTag1, KIPProtoTag2, _L("CIPProtoBinder %08x:\tUnbindFromLowerFlow()"), this); 
       
    82 
       
    83 	if (!iBinderControl)
       
    84 		return;
       
    85 	
       
    86 	iBinderControl->Unbind(this, this);
       
    87 	iBinderControl = NULL;
       
    88 
       
    89 	iLowerControl = NULL;
       
    90 	iLowerDataSender = NULL;
       
    91 	}
       
    92 
       
    93 //-=========================================
       
    94 // MUpperDataReceiver methods
       
    95 //-=========================================        
       
    96 void CIPProtoBinder::Process(RMBufChain& aData)
       
    97 	{
       
    98 	if (iNif)
       
    99 		{
       
   100 		ASSERT(iNif->iUpperProtocol);
       
   101 		iNif->iUpperProtocol->Process(aData, reinterpret_cast<CProtocolBase*>(iNif));
       
   102 		}
       
   103 	}
       
   104 
       
   105 //-=========================================
       
   106 // MUpperControl methods
       
   107 //-=========================================        
       
   108 void CIPProtoBinder::StartSending()
       
   109 	{
       
   110 	__CFLOG_1(KIPProtoTag1, KIPProtoTag2, _L("CIPProtoBinder %08x:\tStartSending()"), this);
       
   111 	Flow().BinderReady();	
       
   112 	iNif->StartSending();
       
   113 	}
       
   114 	
       
   115 void CIPProtoBinder::Error(TInt aError)
       
   116 	{
       
   117 	__CFLOG_2(KIPProtoTag1, KIPProtoTag2, _L("CIPProtoBinder %08x:\tError(%d)"), this, aError);
       
   118 	Flow().BinderError(aError, this);
       
   119 	}
       
   120 //-=========================================
       
   121 // MLowerDataSender methods
       
   122 //-========================================= 
       
   123 ESock::MLowerDataSender::TSendResult CIPProtoBinder::Send(RMBufChain& aData)
       
   124 	{
       
   125 	return iLowerDataSender->Send(aData);
       
   126 	}
       
   127 
       
   128 //-=========================================
       
   129 // MLowerControl methods
       
   130 //-========================================= 
       
   131 TInt CIPProtoBinder::GetName(TDes& aName)
       
   132 	{
       
   133 	return iLowerControl->GetName(aName);
       
   134 	}
       
   135 	
       
   136 TInt CIPProtoBinder::BlockFlow(TBlockOption aOption)
       
   137 	{
       
   138 	__CFLOG_2(KIPProtoTag1, KIPProtoTag2, _L("CIPProtoBinder %08x:\tBlockFlow(%d)"), this, aOption);
       
   139 	return iLowerControl->BlockFlow(aOption);
       
   140 	}
       
   141 TInt CIPProtoBinder::GetConfig(TBinderConfig& aConfig)
       
   142 	{
       
   143 	return iLowerControl->GetConfig(aConfig);
       
   144 	}
       
   145 	
       
   146 TInt CIPProtoBinder::Control(TUint aLevel, TUint aName, TDes8& aOption)
       
   147 	{
       
   148 	return iLowerControl->Control(aLevel, aName, aOption);
       
   149 	}
       
   150 
       
   151 //-========================================= 
       
   152 void CIPProtoBinder::SetProtocolName(const TDesC8& aProtocol)
       
   153 	{
       
   154 	iProtocolName.Copy(aProtocol);
       
   155 	}
       
   156 
       
   157 
       
   158 const TDesC8& CIPProtoBinder::ProtocolName()
       
   159 	{
       
   160 	ASSERT(iProtocolName.Length());
       
   161 	return iProtocolName;
       
   162 	}