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// Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Symbian Foundation License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// Trace Core
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//
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#include <kern_priv.h>
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#include "TraceCoreRouter.h"
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#include "TraceCoreSubscriber.h"
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#include "TraceCoreDebug.h"
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#include "OstTraceDefinitions.h"
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#ifdef OST_TRACE_COMPILER_IN_USE
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#include "TraceCoreRouterTraces.h"
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#endif
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// Constants
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/**
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* Constructor
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*/
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DTraceCoreRouter::DTraceCoreRouter()
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: iMessageSender( NULL )
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{
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}
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/**
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* Destructor
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*/
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DTraceCoreRouter::~DTraceCoreRouter()
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{
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Kern::MutexWait(*iLock);
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iRoutingItems.Reset();
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Kern::MutexSignal(*iLock);
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iLock->Close(NULL);
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}
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/**
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* Initializes this router
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*
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* @param aMessageSender The message sender interface
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*/
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TInt DTraceCoreRouter::Init( MTraceCoreMessageSender& aMessageSender )
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{
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iMessageSender = &aMessageSender;
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_LIT(KTraceCoreRouterLock, "DTraceCoreRouter_Lock");
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TInt err = Kern::MutexCreate(iLock, KTraceCoreRouterLock, KMutexOrdGeneral0);
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return err;
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}
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/**
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* Callback for incoming messages
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*
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* @param aMsg The message
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* @return KErrNotFound if the message id was not found (not subscribed), KErrNone if found
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*/
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TInt DTraceCoreRouter::MessageReceived( TTraceMessage &aMsg )
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{
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OstTraceExt1( TRACE_FLOW, DTRACECOREROUTER_MESSAGERECEIVED_ENTRY, "> DTraceCoreRouter::MessageReceived. MsgId:0x%hhx", aMsg.iMessageId );
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TInt ret( KErrNotFound );
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TUint32 messageId = aMsg.iMessageId;
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TUint32 msgFormat = aMsg.iMsgFormat;
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Kern::MutexWait(*iLock);
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for ( TInt i = 0; i < iRoutingItems.Count(); i++ )
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{
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if ( iRoutingItems[ i ].iMessageID == messageId && iRoutingItems[ i ].iMsgFormat == msgFormat )
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{
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iRoutingItems[ i ].iSubscriber->MessageReceived( aMsg );
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ret = KErrNone;
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}
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}
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Kern::MutexSignal(*iLock);
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OstTrace1( TRACE_FLOW, DTRACECOREROUTER_MESSAGERECEIVED_EXIT, "< DTraceCoreRouter::MessageReceived. Ret:%d", ret );
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return ret;
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}
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/**
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* Subscribes to a message
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*
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* @param aRoutingItem The subscription properties.
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*/
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TInt DTraceCoreRouter::Subscribe( TRoutingItem& aRoutingItem )
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{
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OstTrace1( TRACE_FLOW, DTRACECOREROUTER_SUBSCRIBE_ENTRY, "> DTraceCoreRouter::Subscribe 0x%x", ( TUint )&( aRoutingItem ) );
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TInt err = KErrNone;
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if ( iMessageSender != NULL )
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{
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if ( aRoutingItem.iSubscriber != NULL )
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{
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Kern::MutexWait(*iLock);
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// Add to routingItems array
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err = iRoutingItems.Append( aRoutingItem );
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Kern::MutexSignal(*iLock);
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if ( err == KErrNone )
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{
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// Set message sender to routing item
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aRoutingItem.iSubscriber->SetMessageSender( *iMessageSender );
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OstTraceExt2( TRACE_NORMAL, DTRACECOREROUTER_SUBSCRIBE_SUBSCRIBED_TO_MESSAGE, "DTraceCoreRouter::Subscribe - Subscribed to message. Subscriber:0x%x MsgId:0x%x", (TUint)aRoutingItem.iSubscriber, (TUint)aRoutingItem.iMessageID );
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}
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}
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// Subscriber was NULL
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else
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{
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err = KErrArgument;
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}
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}
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// Message sender not set
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else
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{
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err = KErrGeneral;
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}
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OstTrace1( TRACE_FLOW, DTRACECOREROUTER_SUBSCRIBE_EXIT, "< DTraceCoreRouter::Subscribe. Err:%d", err );
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return err;
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}
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/**
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* Unsubscribes from a message
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*
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* @param aRoutingItem The subscription properties
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*/
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void DTraceCoreRouter::Unsubscribe( TRoutingItem& aRoutingItem )
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{
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// Make sure not to delete item while going through items somewhere else
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Kern::MutexWait(*iLock);
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for ( TInt i = 0; i < iRoutingItems.Count(); i++ )
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{
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if ( iRoutingItems[ i ].iMessageID == aRoutingItem.iMessageID
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&& iRoutingItems[ i ].iSubscriber == aRoutingItem.iSubscriber )
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{
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OstTraceExt2( TRACE_NORMAL, DTRACECOREROUTER_UNSUBSCRIBE_UNSUBSCRIBED, "DTraceCoreRouter::Unsubscribe - Unsubscribed 0x%x MsgID:0x%x", (TUint)aRoutingItem.iSubscriber, (TUint)aRoutingItem.iMessageID );
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iRoutingItems.Remove( i );
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i--;
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}
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}
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Kern::MutexSignal(*iLock);
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}
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/**
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* Unsubscribes from all messages of given subscriber
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*
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* @param aSubscriber The subscriber to be unregistered
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*/
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void DTraceCoreRouter::Unsubscribe( DTraceCoreSubscriber& aSubscriber )
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{
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OstTrace1( TRACE_FLOW, DTRACECOREROUTER_UNSUBSCRIBEALL_ENTRY, "> DTraceCoreRouter::UnsubscribeAll 0x%x", ( TUint )&( aSubscriber ) );
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Kern::MutexWait(*iLock);
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for ( TInt i = 0; i < iRoutingItems.Count(); i++ )
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{
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if ( iRoutingItems[ i ].iSubscriber == &aSubscriber )
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{
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OstTraceExt2( TRACE_NORMAL, DTRACECOREROUTER_UNSUBSCRIBEALL_UNSUBSCRIBED, "DTraceCoreRouter::UnsubscribeAll - Unsubscribed 0x%x MsgID:%d", (TUint)&aSubscriber, (TInt)iRoutingItems[ i ].iMessageID );
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iRoutingItems.Remove( i );
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i--;
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}
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}
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Kern::MutexSignal(*iLock);
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}
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// End of File
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