--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hwrmhaptics/hapticspluginmanager/src/hwrmhapticsplugintransactionlist.cpp	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,157 @@
+/*
+* Copyright (c) 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:  Haptics server plugin handler implementation
+*
+*/
+
+#include "hwrmhapticstrace.h"
+#include "hwrmhapticsplugintransactionlist.h"
+
+// ---------------------------------------------------------------------------
+// C++ constructor
+// ---------------------------------------------------------------------------
+//
+CHWRMHapticsPluginTransactionList::CHWRMHapticsPluginTransactionList()
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CHWRMHapticsPluginTransactionList::~CHWRMHapticsPluginTransactionList()
+    {
+    COMPONENT_TRACE( ( _L( "CHWRMHapticsPluginTransactionList::~CHWRMHapticsPluginTransactionList()" ) ) );
+    
+    // delete any existing transaction data
+    while ( iTransactionData )
+        {
+        COMPONENT_TRACE( ( _L( "CHWRMHapticsPluginTransactionList::~CHWRMHapticsPluginTransactionList - Deleting transaction %d" ), iTransactionData->TransactionId() ) );
+        CHWRMHapticsPluginTransactionListItem* data = iTransactionData;
+        iTransactionData = iTransactionData->NextItem();
+        delete data;
+        }
+        
+    // No need to delete iTransactionDataLast, obviously. Just NULL it to 
+    iTransactionDataLast = NULL;    
+
+    COMPONENT_TRACE( ( _L( "CHWRMHapticsPluginTransactionList::~CHWRMHapticsPluginTransactionList - return " ) ) );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Find transaction from list.
+// Uses linear search, but there should rarely be more than one concurrent
+// transaction so it won't be a problem.
+// ---------------------------------------------------------------------------
+//
+CHWRMHapticsPluginTransactionListItem* 
+CHWRMHapticsPluginTransactionList::FindTransaction( TUint8 aTransId, 
+                                                    TBool aRemove )
+    {
+    COMPONENT_TRACE( ( _L( "CHWRMHapticsPluginTransactionList::FindTransaction(0x%x, 0x%x)" ), aTransId, aRemove ) );
+    
+    CHWRMHapticsPluginTransactionListItem* data = iTransactionData;
+    CHWRMHapticsPluginTransactionListItem* dataPrevious = NULL;
+
+    TBool found( EFalse );
+    
+    while ( data && !found )
+        {
+        if ( data->TransactionId() == aTransId )
+            {
+            found = ETrue;
+            
+            // update pointers, if remove
+            if ( aRemove )
+                {                
+                if ( iTransactionData == data )
+                    {
+                    iTransactionData = data->NextItem();
+                    }
+                else
+                    {
+                    // dataPrevious is always not NULL here, since first item
+                    // in the list will use the other branch of this if.
+                    dataPrevious->SetNextItem( data->NextItem() );
+                    }
+                    
+                if ( iTransactionDataLast == data )
+                    {
+                    iTransactionDataLast = dataPrevious;
+                    }
+
+                iCount--;
+                }
+            }
+        else
+            {
+            dataPrevious = data;
+            data = data->NextItem();
+            }
+        }
+    
+    return data;
+    }
+    
+// ---------------------------------------------------------------------------
+// Adds transaction to list
+// ---------------------------------------------------------------------------
+//
+void CHWRMHapticsPluginTransactionList::AddTransaction( 
+    CHWRMHapticsPluginTransactionListItem* aTransactionData )    
+    {
+    COMPONENT_TRACE( ( _L( "CHWRMHapticsPluginTransactionList::AddTransaction(0x%x)" ), aTransactionData ) );
+
+    // if previous data exists, put it last in the list.
+    if ( iTransactionData )
+        {
+        iTransactionDataLast->SetNextItem( aTransactionData );
+        COMPONENT_TRACE( ( _L( "CHWRMHapticsPluginTransactionList::AddTransaction - Added transaction to list" ) ) ); 
+        }
+    else
+        {
+        iTransactionData = aTransactionData;
+        }
+    
+    iTransactionDataLast = aTransactionData;   
+    iTransactionDataLast->SetNextItem( NULL );
+    
+    iCount++;
+
+    COMPONENT_TRACE( ( _L( "CHWRMHapticsPluginTransactionList::AddTransaction - return" ) ) );
+    
+    }
+    
+// ---------------------------------------------------------------------------
+// Removes first item from transaction list and adjust pointers accordingly
+// ---------------------------------------------------------------------------
+//
+CHWRMHapticsPluginTransactionListItem* 
+CHWRMHapticsPluginTransactionList::RemoveFirstItem()
+    {
+    COMPONENT_TRACE( ( _L( "CHWRMHapticsPluginTransactionList::RemoveFirstItem()" ) ) );
+
+    CHWRMHapticsPluginTransactionListItem* retval = iTransactionData;
+
+    iTransactionData = iTransactionData->NextItem();
+
+    iCount--;
+
+    COMPONENT_TRACE( ( _L( "CHWRMHapticsPluginTransactionList::RemoveFirstItem - return 0x%x" ), retval ) );
+    
+    return retval;
+    }
+
+//  End of File