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