diff -r f742655b05bf -r d38647835c2e voipplugins/ipapputils/voipeventlog/src/voipeventlogengine.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/voipplugins/ipapputils/voipeventlog/src/voipeventlogengine.cpp	Wed Sep 01 12:29:57 2010 +0100
@@ -0,0 +1,318 @@
+/*
+* Copyright (c) 2007-2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+
+#include <centralrepository.h>
+
+#include "voipeventlogengine.h"
+#include "voipeventlogconstants.h"
+#include "voiperrorentry.h"
+#include "voipeventloglogger.h" // For logging
+
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CVoipEventLogEngine::CVoipEventLogEngine()
+    {
+    }
+
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+void CVoipEventLogEngine::ConstructL()
+    {
+    VELLOGSTRING( "CVoipEventLogEngine::ConstructL() - IN" );
+    iRepository = CRepository::NewL( KCRUidVoIPEventLog );
+
+    TInt err = iSemaphore.OpenGlobal( KVoIPEventLogSemaphore );
+    if ( err != KErrNone )
+        {
+        User::LeaveIfError( iSemaphore.CreateGlobal( KVoIPEventLogSemaphore, 1 ) );
+        }
+
+
+    VELLOGSTRING( "CVoipEventLogEngine::ConstructL() - OUT" );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CVoipEventLogEngine* CVoipEventLogEngine::NewL()
+    {
+    CVoipEventLogEngine* self = CVoipEventLogEngine::NewLC();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CVoipEventLogEngine* CVoipEventLogEngine::NewLC()
+    {
+    CVoipEventLogEngine* self = new( ELeave ) CVoipEventLogEngine;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CVoipEventLogEngine::~CVoipEventLogEngine()
+    {
+    VELLOGSTRING( "CVoipEventLogEngine::~CVoipEventLogEngine() - IN" );
+
+    delete iRepository;
+
+    iSemaphore.Close();
+
+    VELLOGSTRING( "CVoipEventLogEngine::~CVoipEventLogEngine() - OUT" );
+    }
+
+// ---------------------------------------------------------------------------
+// release semaphore, this function is used in custom cleanup
+// ---------------------------------------------------------------------------
+//
+void CVoipEventLogEngine::ReleaseSemaphore( TAny* aEngine )
+    {
+    ASSERT ( aEngine );
+    CVoipEventLogEngine* engine = static_cast<CVoipEventLogEngine*>( aEngine );
+    engine->DoReleaseSemaphore();
+    }
+
+// ---------------------------------------------------------------------------
+// release semaphore
+// ---------------------------------------------------------------------------
+//
+void CVoipEventLogEngine::DoReleaseSemaphore()
+    {
+    iSemaphore.Signal();
+    }
+
+// ---------------------------------------------------------------------------
+// Begins transaction in repository.
+// ---------------------------------------------------------------------------
+//
+void CVoipEventLogEngine::BeginTransactionLC()
+    {
+    VELLOGSTRING( "CVoipEventLogEngine::BeginTransaction() - IN" );
+
+    iSemaphore.Wait();
+    TCleanupItem cleanup( CVoipEventLogEngine::ReleaseSemaphore, this );
+    CleanupStack::PushL( cleanup );
+
+    User::LeaveIfError( iRepository->StartTransaction( CRepository::EReadWriteTransaction ) );
+
+    iRepository->CleanupRollbackTransactionPushL(); // if leave happens, only roll back, no delete
+
+    VELLOGSTRING( "CVoipEventLogEngine::BeginTransaction() - OUT" );
+
+    }
+
+
+// ---------------------------------------------------------------------------
+// Commits changes in repository.
+// ---------------------------------------------------------------------------
+//
+void CVoipEventLogEngine::CommitTransactionL()
+    {
+    VELLOGSTRING(
+        "CVoipEventLogEngine::CommitTransactionL() - IN" );
+
+    TUint32 temp;
+    User::LeaveIfError( iRepository->CommitTransaction( temp ) );
+
+    iSemaphore.Signal();
+
+    CleanupStack::Pop( 2 ); // semaphore and repository
+
+    VELLOGSTRING( "CVoipEventLogEngine::CommitTransaction() - OUT" );
+
+    }
+
+
+// ---------------------------------------------------------------------------
+// Generate time stamp with current time
+// ---------------------------------------------------------------------------
+//
+void CVoipEventLogEngine::GenerateTimeStampL( TDes& aTimeStamp) const
+    {
+    TTime now;
+    now.HomeTime();
+    now.FormatL( aTimeStamp, KVoIPTimeStampFormat );
+    }
+
+// ---------------------------------------------------------------------------
+// Get latest index number
+// ---------------------------------------------------------------------------
+//
+TInt CVoipEventLogEngine::GetLatestIndexL()
+    {
+    TInt latestIndex( 0 );
+    User::LeaveIfError( iRepository->Get( KVELLatestErrorIndexKey, latestIndex ) );
+
+    return latestIndex;
+    }
+
+// ---------------------------------------------------------------------------
+// Get new index number
+// ---------------------------------------------------------------------------
+//
+TInt CVoipEventLogEngine::GetNewIndexL()
+    {
+    TInt latestIndex = GetLatestIndexL();
+    TInt maxCount = GetMaxErrorCountL();
+    TInt newIndex = latestIndex + 1;
+    if( newIndex >= maxCount )
+        {
+        newIndex = newIndex - maxCount;
+        }
+
+    return newIndex;
+    }
+
+// ---------------------------------------------------------------------------
+// Get maximum error count
+// ---------------------------------------------------------------------------
+//
+TInt CVoipEventLogEngine::GetMaxErrorCountL()
+    {
+    TInt count( 0 );
+    User::LeaveIfError( iRepository->Get( KVELMaxErrorCountKey, count ) );
+
+    return count;
+    }
+
+// ---------------------------------------------------------------------------
+// Writes an error data to event log
+// ---------------------------------------------------------------------------
+//
+void CVoipEventLogEngine::WriteErrorL( const CVoipErrorEntry& aErrorEntry )
+    {
+    if( aErrorEntry.ErrorText().Length() > NCentralRepositoryConstants::KMaxBinaryLength )
+        {
+        User::Leave( KErrArgument );
+        }
+
+    TInt newIndex = GetNewIndexL();
+    TBuf<KTimeStampStrLen> timeStamp;
+    GenerateTimeStampL( timeStamp );
+
+    // error code
+    TUint32 key = newIndex + KSPColumnErrorCode;
+    User::LeaveIfError( iRepository->Set( key, aErrorEntry.ErrorCode() ) );
+
+    // error text
+    key += KColumnIncrement;
+    User::LeaveIfError( iRepository->Set( key, aErrorEntry.ErrorText() ) );
+
+    // time stamp
+    key += KColumnIncrement;
+    User::LeaveIfError( iRepository->Set( key, timeStamp ) );
+
+    // save newIndex to latest index
+    User::LeaveIfError( iRepository->Set( KVELLatestErrorIndexKey, newIndex ) );
+
+    // save new count to cenrep
+    TInt count( 0 );
+
+    User::LeaveIfError( iRepository->Get( KVELErrorCountKey, count ) );
+    if( count < GetMaxErrorCountL() )
+        {
+        count++;
+        User::LeaveIfError( iRepository->Set( KVELErrorCountKey, count ) );
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// Reads error count from the log
+// ---------------------------------------------------------------------------
+//
+void CVoipEventLogEngine::ErrorCountL( TInt& aCount )
+    {
+    User::LeaveIfError( iRepository->Get( KVELErrorCountKey, aCount ) );
+    }
+
+// ---------------------------------------------------------------------------
+// Reset voip errors log history.
+// ---------------------------------------------------------------------------
+//
+TInt CVoipEventLogEngine::ResetLogHistory()
+    {
+    TInt retValue = iRepository->Reset();
+    return retValue;
+    }
+
+// ---------------------------------------------------------------------------
+// Reads an error informaiton from the log
+// ---------------------------------------------------------------------------
+//
+void CVoipEventLogEngine::ReadErrorL( TInt aIndex, CVoipErrorEntry& aErrorEntry )
+    {
+    TInt count( 0 );
+    ErrorCountL( count );
+
+    if( aIndex > count - 1 )
+        {
+        User::Leave( KErrNotFound );
+        }
+
+    TInt latestIndex = GetLatestIndexL();
+    TInt index = latestIndex - aIndex;
+    if( index < 0 )
+        {
+        index += count;
+        }
+
+    // error code
+    TUint32 key = index + KSPColumnErrorCode;
+    TInt errorCode;
+    User::LeaveIfError( iRepository->Get( key, errorCode ) );
+    aErrorEntry.SetErrorCode( errorCode );
+
+    // error text
+    HBufC* errorText = HBufC::NewLC( NCentralRepositoryConstants::KMaxBinaryLength );
+    TPtr ptrErrorText = errorText->Des();
+    key += KColumnIncrement;
+    User::LeaveIfError( iRepository->Get( key, ptrErrorText ) );
+
+    // error timestamp
+    HBufC* timeStamp = HBufC::NewLC( KTimeStampStrLen );
+    TPtr ptrTimeStamp = timeStamp->Des();
+    key += KColumnIncrement;
+    User::LeaveIfError( iRepository->Get( key, ptrTimeStamp ) );
+
+    // set new data to aErrorEntry
+    User::LeaveIfError( aErrorEntry.SetErrorText( *errorText ) );
+    User::LeaveIfError( aErrorEntry.SetTimeStamp( *timeStamp ) );
+
+    CleanupStack::PopAndDestroy( 2, errorText );
+
+    }
+