commsfwsupport/commselements/nodemessages/src/nm_node.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 //
       
    15 
       
    16 /**
       
    17  @file
       
    18 */
       
    19 
       
    20 #include "nm_node.h"
       
    21 #include "nm_messages_base.h"
       
    22 
       
    23 
       
    24 #ifdef _DEBUG
       
    25 // Panic category for "absolutely impossible!" vanilla ASSERT()-type panics from this module
       
    26 // (if it could happen through user error then you should give it an explicit, documented, category + code)
       
    27 _LIT(KSpecAssert_ElemNodeMessNodC, "ElemNodeMessNodC");
       
    28 #endif
       
    29 
       
    30 using namespace Messages;
       
    31 
       
    32 
       
    33 EXPORT_C NetInterfaces::TInterfaceControl* ANode::FetchNodeInterfaceControlL(TInt /*aInterfaceId*/)
       
    34     {
       
    35     User::Leave(KErrInterfaceNotSupported);
       
    36     return NULL;
       
    37     }
       
    38 
       
    39 EXPORT_C TAny* ANode::FetchNodeInterfaceL(TInt aInterfaceId)
       
    40     {
       
    41     NetInterfaces::TInterfaceControl* ic = FetchNodeInterfaceControlL(aInterfaceId);
       
    42     return ic->FetchInterfaceL(aInterfaceId);
       
    43     }
       
    44 
       
    45 EXPORT_C const TNodeId& ASimpleNodeIdBase::NodeId() const
       
    46     {
       
    47     return ANodeId::Id();
       
    48     }
       
    49 
       
    50 EXPORT_C const TNodeId& ANodeIdBase::NodeId() const
       
    51     {
       
    52     return ANodeId::Id();
       
    53     }
       
    54 
       
    55 EXPORT_C ANodeBase::ANodeBase(const TNodeId& aNodeId)
       
    56 :	TIfStaticFetcherNearestInHierarchy(this)
       
    57 	{
       
    58 	iSelfInterface.Open(aNodeId);
       
    59 	}
       
    60 
       
    61 EXPORT_C void ANodeBase::ReturnInterfacePtrL(ANodeBase*& aInterface)
       
    62     {
       
    63     aInterface = this;
       
    64     }
       
    65 
       
    66 EXPORT_C ANodeBase::~ANodeBase()
       
    67 	{
       
    68 	//There can be no clients left in the array.
       
    69 	//No Data Clients
       
    70 	//No Control Clients
       
    71 	//No Service Providers
       
    72 	//No Control Provider
       
    73 
       
    74 	TClientIter<TDefaultClientMatchPolicy> iter(GetClientIter<TDefaultClientMatchPolicy>(TClientType(TClientType::EAll)));
       
    75 	while(*iter)
       
    76 		{
       
    77 	    NM_LOG((KNodeMessagesSubTag, _L8("ERROR: ~ANodeBase(%08x) - Client %08x Type %04x"),
       
    78 	        Id().Ptr(), &((*iter)->RecipientId()), (*iter)->Type()));
       
    79 		++iter;
       
    80 		}
       
    81 
       
    82 	__ASSERT_DEBUG(iClients.Count()==0, User::Panic(KSpecAssert_ElemNodeMessNodC, 1)); //Please fix your node.
       
    83     iClients.ResetAndDestroy();
       
    84     iSelfInterface.Close();
       
    85 	}
       
    86 
       
    87 EXPORT_C RNodeInterface* ANodeBase::NewClientInterfaceL(const TClientType& /*aClientType*/, TAny* /*aClientInfo*/)
       
    88     {
       
    89     return new(ELeave)RNodeInterface();
       
    90     }
       
    91 
       
    92 /**
       
    93  * Find specified client identified by id specified
       
    94  * @return A pointer to RNodeInterface, or NULL, if not found
       
    95  */
       
    96 EXPORT_C RNodeInterface* ANodeBase::FindClient(const TRuntimeCtxId& aId) const
       
    97     {
       
    98 	TInt dummy = 0;
       
    99 	return DoFindClient(aId, dummy);
       
   100     }
       
   101 
       
   102 //As FindClient but must not return NULL
       
   103 EXPORT_C RNodeInterface* ANodeBase::FindClientL(const TRuntimeCtxId& aId) const
       
   104     {
       
   105 	TInt dummy = 0;
       
   106 	RNodeInterface* c = DoFindClient(aId, dummy);
       
   107 	User::LeaveIfError(c? KErrNone : KErrNotFound);
       
   108 	return c;
       
   109     }
       
   110 
       
   111 EXPORT_C RNodeInterface* ANodeBase::DoFindClient(const TRuntimeCtxId& aId, TInt& aFoundAtIndex) const
       
   112 	{
       
   113 	aFoundAtIndex = KErrNotFound;
       
   114 	for (TInt i = iClients.Count() - 1; i>=0; i--)
       
   115         {
       
   116         if (*iClients[i] == aId)
       
   117             {
       
   118 	        aFoundAtIndex = i;
       
   119             return iClients[i];
       
   120             }
       
   121         }
       
   122     return NULL;
       
   123 	}
       
   124 
       
   125 EXPORT_C TUint ANodeBase::CountClients(TClientIterBase& aClientIterator) const
       
   126 	{
       
   127 	TUint count = 0;
       
   128 	while ((aClientIterator++) != NULL)
       
   129 		{
       
   130 		count++;
       
   131 		}
       
   132 	return count;
       
   133 	}
       
   134 
       
   135 EXPORT_C TInt ANodeBase::PostToClients(TClientIterBase& aClientIterator, const TRuntimeCtxId& aPostFrom, const TSignalBase& aMessage, TUint32 aFlagsToSet, TUint32 aFlagsToClear) const
       
   136 	{
       
   137 	TInt count = 0;
       
   138 
       
   139     RNodeInterface* ctl;
       
   140 	while ((ctl = aClientIterator++) != NULL)
       
   141 		{
       
   142 		if (!(ctl->Flags() & TClientType::ELeaving))
       
   143     		{
       
   144     		count++;
       
   145     		ctl->PostMessage(aPostFrom, aMessage);
       
   146     		ctl->ClearFlags(aFlagsToClear);
       
   147     		ctl->SetFlags(aFlagsToSet);
       
   148     		}
       
   149 		}
       
   150 	return count;
       
   151 	}
       
   152 
       
   153 EXPORT_C RNodeInterface* ANodeBase::AddClientL(const TNodeId& aClientId, const TClientType& aClientType, TAny* aClientInfo)
       
   154 	{
       
   155 	NM_LOG((KNodeMessagesSubTag, _L8("ANodeBase %08x:\tAddClientL(%08x, flags=%04x, type=%04x)"), Id().Ptr(), aClientId.Ptr(), aClientType.Flags(), aClientType.Type()));
       
   156 	RNodeInterface* client = FindClient(aClientId);
       
   157 	if (NULL == client)
       
   158 		{
       
   159 		RNodeInterface* cc = NewClientInterfaceL(aClientType, aClientInfo);
       
   160 		CleanupStack::PushL(cc);
       
   161 		iClients.AppendL(cc); //don't change it some states may rely on the fact that clients
       
   162 		//are appended
       
   163 		CleanupStack::Pop(cc);
       
   164 		cc->Open(aClientId, aClientType);
       
   165 		client = cc;
       
   166 		}
       
   167 	else
       
   168 		{
       
   169 		client->SetFlags(aClientType.Flags());
       
   170 		}
       
   171 
       
   172 	return client;
       
   173 	}
       
   174 
       
   175 EXPORT_C void ANodeBase::RemoveClient(RNodeInterface& aClient)
       
   176 	{
       
   177 	TInt foundAt = iClients.Find(&aClient);
       
   178 	__ASSERT_DEBUG(KErrNotFound!=foundAt, User::Panic(KSpecAssert_ElemNodeMessNodC, 2));
       
   179 	RemoveClient(foundAt);
       
   180 	}
       
   181 
       
   182 EXPORT_C void ANodeBase::RemoveClient(TInt aIndex)
       
   183 	{
       
   184 	__ASSERT_ALWAYS(aIndex >= 0 && aIndex < iClients.Count(), User::Panic(Messages::KMessagesPanic,Messages::EClientNotValidPanic));
       
   185 	RNodeInterface* client = iClients[aIndex];
       
   186 	NM_LOG((KNodeMessagesSubTag, _L8("ANodeBase %08x:\tRemoveClient(%08x, flags=%04x, type=%04x)"), Id().Ptr(), client->RecipientId().Ptr(), client->Flags(), client->Type()));
       
   187 	client->Close();
       
   188 	delete client;
       
   189 	iClients.Remove(aIndex);
       
   190 	}
       
   191 
       
   192