sl@0: // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: // System includes
sl@0: #include <logwrap.h>
sl@0: 
sl@0: // User includes
sl@0: #include "SCHLOG.h"
sl@0: 
sl@0: 
sl@0: //Constants
sl@0: const TInt KLogEventQueueGranularity = 3;
sl@0: 
sl@0: CSchLogManager::CSchLogManager()
sl@0: :	CActive(EPriorityLow)
sl@0: 	{
sl@0: 	CActiveScheduler::Add(this);
sl@0: 	}
sl@0: 
sl@0: CSchLogManager::~CSchLogManager()
sl@0: 	{
sl@0: 	Cancel();
sl@0:   	if(iPendingLogEvents)
sl@0:   		{
sl@0:   		iPendingLogEvents->ResetAndDestroy();
sl@0:   		delete iPendingLogEvents;
sl@0:   		}
sl@0: 	delete iLogEvent;
sl@0: 	if(iLogWrapper)
sl@0:  		delete iLogWrapper;
sl@0: 	}
sl@0: 	
sl@0: void CSchLogManager::ConstructL(RFs& aFileSession)
sl@0: 	{
sl@0: 	iFileSession = &aFileSession;
sl@0: 	iLogWrapper = NULL;
sl@0: 	iLogEvent = CLogEvent::NewL();
sl@0: 	iLogEvent->SetEventType(KLogTaskSchedulerEventTypeUid);
sl@0: 	iPendingLogEvents = new(ELeave) CArrayPtrFlat<CLogEvent>(KLogEventQueueGranularity);
sl@0: 	}
sl@0: 
sl@0: CSchLogManager* CSchLogManager::NewL(RFs& aFileSession)
sl@0: 	{
sl@0: 	CSchLogManager* self = new(ELeave) CSchLogManager();
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL(aFileSession);
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: /*
sl@0: Creates a new log engine entry of type KLogTaskSchedulerEventTypeUid
sl@0: with aError as its entry.
sl@0: */
sl@0: void CSchLogManager::LogError(TInt aError)
sl@0: 	{
sl@0: 	// Add error code as a descriptor
sl@0: 	TBuf<10> errorCodeAsDescriptor;
sl@0: 	errorCodeAsDescriptor.Num(aError);
sl@0: 	iLogEvent->SetNumber(errorCodeAsDescriptor);
sl@0: 	// Add to log or queue
sl@0:   	if (!IsActive())
sl@0:     	{
sl@0: 		iStatus=KRequestPending;
sl@0: 	
sl@0: 		TRAPD(error, GetLogWrapperL()->Log().AddEvent(*iLogEvent, iStatus));
sl@0: 		if (error != KErrNone)
sl@0: 			return; 
sl@0: 		SetActive();
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		// add the request to the queue, it will be processed asap
sl@0: 		CLogEvent* event = 0;
sl@0: 		TRAPD(error, event = CLogEvent::NewL());
sl@0: 		if (KErrNone != error)
sl@0: 			{
sl@0: 			return; // event is discarded!
sl@0: 			}
sl@0: 		//coverity[cleanup_stack]
sl@0: 		/* NewL() and AppendL() are enclosed in TRAP and handled. 
sl@0: 		* So no need of pushing the variable event onto the cleanup stack
sl@0: 		*/
sl@0: 		// add to the queue
sl@0: 		TRAP(error, iPendingLogEvents->AppendL(event));
sl@0: 		if (KErrNone != error)
sl@0: 			{
sl@0: 			delete event; // event is discarded!
sl@0: 			return;
sl@0: 			}
sl@0: 		}	
sl@0: 	}
sl@0: 
sl@0: /*
sl@0: Creates a new log engine entry of type KLogTaskSchedulerEventTypeUid 
sl@0: and subject aSubject with aError as its entry.
sl@0: */
sl@0: void CSchLogManager::LogError(const TDesC& aSubject, TInt aError)
sl@0: 	{
sl@0: 	//AddSubject
sl@0: 	iLogEvent->SetSubject(aSubject);
sl@0: 	LogError(aError);
sl@0: 	}
sl@0: 	
sl@0: void CSchLogManager::RunL()
sl@0:   	{
sl@0:     if (iPendingLogEvents->Count()>0)
sl@0:         {
sl@0:         CLogEvent* nextEventPtr = iPendingLogEvents->At(0);
sl@0:         iLogEvent->CopyL(*nextEventPtr);
sl@0: 		iStatus=KRequestPending;
sl@0: 		
sl@0: 		//If error occur trap it and ignore, so that log manager can continue 
sl@0:         TRAPD(error, GetLogWrapperL()->Log().AddEvent(*iLogEvent, iStatus));
sl@0:        	//Following code is only to ignore build warnings        
sl@0:         if (error == KErrNone)
sl@0: 				error = KErrNone;
sl@0:         SetActive();
sl@0:         // delete the ongoing CLogEvent we just copied
sl@0:         delete nextEventPtr;
sl@0:         //remove the pointer from the queue
sl@0:         iPendingLogEvents->Delete(0);
sl@0:         }
sl@0:   	}
sl@0:   
sl@0: void CSchLogManager::DoCancel()
sl@0:   	{
sl@0:     if(iLogWrapper)
sl@0:         iLogWrapper->Log().Cancel();
sl@0:    	}
sl@0: /*
sl@0: Creates a new CLogWrapper and initialise iLogWrapper if it doesn't exist otherwise 
sl@0: return iLogWrapper
sl@0: */
sl@0: CLogWrapper* CSchLogManager::GetLogWrapperL()
sl@0: 	{
sl@0: 	if(iLogWrapper)
sl@0: 		return iLogWrapper;
sl@0: 	
sl@0: 	iLogWrapper = CLogWrapper::NewL(*iFileSession, CActive::EPriorityStandard);
sl@0: 
sl@0: 	return iLogWrapper;
sl@0: 	}
sl@0: 
sl@0: