commsfwsupport/commselements/meshmachine/src/mm_context.cpp
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     1 // Copyright (c) 2005-2009 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 //
       
    15 
       
    16 #include <elements/mm_context_internal.h>
       
    17 #include <elements/mm_activities.h>
       
    18 #include <elements/mm_node.h>
       
    19 #include <elements/nm_address_internal.h>
       
    20 
       
    21 
       
    22 #ifdef _DEBUG
       
    23 // Panic category for "absolutely impossible!" vanilla ASSERT()-type panics from this module
       
    24 // (if it could happen through user error then you should give it an explicit, documented, category + code)
       
    25 _LIT(KSpecAssert_ElemMeshMachCtxC, "ElemMeshMachCtxC");
       
    26 #endif
       
    27 
       
    28 using namespace MeshMachine;
       
    29 using namespace Messages;
       
    30 
       
    31 EXPORT_C TNodeContextBase::TNodeContextBase(AMMNodeBase& aNode, TSignatureBase& aMessage, const TRuntimeCtxId& aSender, const TNodeId& aRecipient, CNodeActivityBase* aNodeActivity)
       
    32 :   iNodeActivity(aNodeActivity),
       
    33 	iMessage(aMessage),
       
    34 	iNode(aNode),
       
    35 	iReturn(KErrNone),
       
    36 	iPeer(NULL),
       
    37 	iSender(aSender),
       
    38 	iRecipient(aRecipient)
       
    39 	{
       
    40 	const TNodeCtxId* recipient = address_cast<const TNodeCtxId>(&aRecipient);
       
    41 	__ASSERT_DEBUG(iNodeActivity==NULL || recipient==NULL || recipient->IsNull() || iNodeActivity->ActivityId() == recipient->NodeCtx(), User::Panic(KSpecAssert_ElemMeshMachCtxC, 1));
       
    42 
       
    43 	//We only allow TNodeNullContext or the aSender must be valid
       
    44 	__ASSERT_DEBUG((aSender.IsNull() && aRecipient.IsNull()) || (!aSender.IsNull() && !aRecipient.IsNull()), User::Panic(KSpecAssert_ElemMeshMachCtxC, 2));
       
    45 	if (!iSender.IsNull())
       
    46 		{
       
    47 		if (iSender == aNode.Id())
       
    48 			{
       
    49 			iPeer = &aNode.SelfInterface();
       
    50 			}
       
    51 		else
       
    52 			{
       
    53 			iPeer = aNode.FindClient(iSender);
       
    54 			}
       
    55 		}
       
    56 	}
       
    57 
       
    58 EXPORT_C TNodeContextBase::~TNodeContextBase()
       
    59 	{
       
    60 	iPeer = NULL;
       
    61 	}
       
    62 
       
    63 EXPORT_C TUint16 TNodeContextBase::ActivityId() const
       
    64 	{
       
    65 	return iNodeActivity? iNodeActivity->ActivityId() : KActivityNull;
       
    66 	}
       
    67 
       
    68 EXPORT_C const TNodeId& TNodeContextBase::NodeId() const
       
    69 	{
       
    70 	return iNode.Id();
       
    71 	}
       
    72 
       
    73 EXPORT_C void TNodeContextBase::PostToSender(const TSignalBase& aMessage) const
       
    74 	{
       
    75 	if (iNodeActivity)
       
    76 		{
       
    77 		RClientInterface::OpenPostMessageClose(TNodeCtxId(iNodeActivity->ActivityId(), NodeId()), iSender, aMessage);
       
    78 		}
       
    79 	else
       
    80 		{
       
    81 		//TODO[PROD] - try to use iPeer (can be used for majority of cases)
       
    82 		RClientInterface::OpenPostMessageClose(iRecipient, iSender, aMessage);
       
    83 		}
       
    84 	}
       
    85 
       
    86 EXPORT_C TBool TNodeContextBase::IsPeer() const
       
    87 	{
       
    88 	return iPeer && iPeer != &iNode.SelfInterface();
       
    89 	}
       
    90 
       
    91 EXPORT_C TBool TNodeContextBase::IsSelf() const
       
    92 	{
       
    93 	return iPeer == &iNode.SelfInterface();
       
    94 	}
       
    95 
       
    96