--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/locationmapnavfw/library/src/mnservicebase.cpp	Wed Nov 03 23:28:39 2010 +0530
@@ -0,0 +1,218 @@
+/*
+* Copyright (c) 2005-2006 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:  CMnServiceBase class implementation
+*
+*/
+
+
+#include <e32base.h>
+
+#include <EPos_CPosLandmark.h>
+#include <epos_poslandmarkserialization.h>
+
+#include "mndebug.h"
+#include "mnerrors.h"
+#include "mninternal.h"
+#include "mninternal.inl"
+
+#include "mnservicebase.h"
+
+// ======== LOCAL FUNCTIONS ========
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+CMnServiceBase::CMnServiceBase()
+    {
+    iCurrentRequest = EMnIpcNone;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+CMnServiceBase::~CMnServiceBase()
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+void CMnServiceBase::BaseConstructL()
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CMnServiceBase::CompleteRequest( TInt aResult )
+    {
+    LOG1("CMnServiceBase::CompleteRequest, result %d", aResult);
+    if ( iCurrentRequest == EMnIpcNone )
+        {
+        PanicServer( KMnPanicAttemptToCompleteNoRequest );
+        }
+    else
+        {
+        Complete( iMessage, aResult );
+        iCurrentRequest = EMnIpcNone;
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+void CMnServiceBase::Complete( const RMessage2& aMsg, TInt aResult )
+    {
+    //LOG1("CMnServiceBase::Complete, result %d", aResult);
+    if ( !aMsg.IsNull() )
+        {
+        aMsg.Complete( aResult );
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+void CMnServiceBase::HandleCancelRequestL( const RMessage2& aMessage )
+    {
+    LOG("CMnServiceBase::HandleCancelRequestL in");
+    
+    if ( IsAsyncRequestActive() && aMessage.Int0() == CurrentAsyncRequest() )
+        {
+        DoCancel();
+        CompleteRequest( KErrCancel );
+        Complete( aMessage, KErrNone );
+        }
+    else
+        {
+        LOG("CMnServiceBase::HandleCancelRequestL leave, not found");
+        User::Leave( KErrNotFound );
+        }
+        
+    LOG("CMnServiceBase::HandleCancelRequestL out");
+    }
+
+// ---------------------------------------------------------
+// ---------------------------------------------------------
+//
+HBufC8* CMnServiceBase::CopyClientBuffer8LC(
+    const RMessage2& aMessage, 
+    const TInt aClientBufferParam )
+    {
+    // Create an empty server side buffer that will contain client data
+    TInt dataSize = aMessage.GetDesLengthL( aClientBufferParam );
+    HBufC8* buffer = HBufC8::NewLC( dataSize );
+
+    // Populate server side buffer with client data
+    TPtr8 ptrToBuf = buffer->Des();
+    aMessage.ReadL( aClientBufferParam, ptrToBuf );
+    return buffer;
+    }
+
+// ---------------------------------------------------------
+// ---------------------------------------------------------
+//
+HBufC* CMnServiceBase::CopyClientBufferLC(
+    const RMessage2& aMessage, 
+    const TInt aClientBufferParam)
+    {
+    // Create an empty server side buffer that will contain client data
+    TInt dataSize = aMessage.GetDesLengthL( aClientBufferParam );
+    HBufC* buffer = HBufC::NewLC( dataSize );
+
+    // Populate server side buffer with client data
+    TPtr ptrToBuf = buffer->Des();
+    aMessage.ReadL( aClientBufferParam, ptrToBuf );
+    return buffer;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+CPosLandmark* CMnServiceBase::UnpackLandmarkLC( 
+    const RMessage2& aMessage,
+    TInt aParamIndex )
+    {
+    LOG("CMnServiceBase::UnpackLandmarkLC");
+    
+    HBufC8* lmBuf = CopyClientBuffer8LC( aMessage, aParamIndex );
+    
+    CPosLandmark* landmark = PosLandmarkSerialization::UnpackL( *lmBuf );
+    CleanupStack::PopAndDestroy( lmBuf );
+    CleanupStack::PushL( landmark );
+    return landmark;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+TInt CMnServiceBase::CurrentAsyncRequest()
+    {
+    return iCurrentRequest;
+    }
+    
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+TBool CMnServiceBase::IsAsyncRequestActive()
+    {
+    return ( iCurrentRequest != EMnIpcNone );
+    }
+
+// ---------------------------------------------------------------------------
+//  Put new request ID to stack to guarantee that if starting of asynchronous
+//  request leaves, the iCurrentRequest will be reset.
+//  If starting goes well, the PostStartAsyncRequest will pop this cleanup
+//  from stack and "current request ID" will be kept until request is competed
+//  by service implmentation.
+// ---------------------------------------------------------------------------
+//
+void CMnServiceBase::PrepareAsyncRequestL( const RMessage2& aMessage )
+    {
+    LOG("CMnServiceBase::PrepareAsyncRequestL in");
+
+    if ( IsAsyncRequestActive() )
+        {
+        PanicClient( aMessage, KMnPanicDuplicateRequest );
+        User::Leave( KErrInUse );
+        }
+
+    iMessage = aMessage;
+    iCurrentRequest = aMessage.Function();
+
+    LOG("CMnServiceBase::PrepareAsyncRequestL out");
+    }
+
+// ---------------------------------------------------------------------------
+//  From class CApaAppServiceBase
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CMnServiceBase::ServiceError( const RMessage2 &aMessage, TInt aError )
+    {
+    LOG2("CMnServiceBase::ServiceError function %d, error %d",
+        aMessage.Function(), aError );
+    
+    if ( IsAsyncRequestActive() && 
+         aMessage.Handle() == iMessage.Handle() )
+        {
+        // starting this async request failed, rollback
+        LOG1("CMnServiceBase::ServiceError forgetting async request %d", iCurrentRequest );
+        iCurrentRequest = EMnIpcNone;
+        }
+
+    CAknAppServiceBase::ServiceError( aMessage, aError );
+    LOG("CMnServiceBase::ServiceError out");
+    }