diff -r 000000000000 -r 818e61de6cd1 crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianETMLib/Common/Buffer/ETBufferBase.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianETMLib/Common/Buffer/ETBufferBase.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,95 @@
+/*
+* Copyright (c) 2009 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: 
+*
+*/
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using SymbianUtils.BasicTypes;
+using SymbianETMLib.Common.Types;
+using SymbianETMLib.Common.Exception;
+
+namespace SymbianETMLib.Common.Buffer
+{
+    public abstract class ETBufferBase
+    {
+        #region Constructors
+        protected ETBufferBase()
+        {
+        }
+
+        protected ETBufferBase( string aFileName )
+        {
+            byte[] buffer = File.ReadAllBytes( aFileName );
+            AddRange( buffer );
+        }
+        #endregion
+
+        #region API
+        public void Clear()
+        {
+            iData.Clear();
+        }
+
+        public void AddRange( IEnumerable<byte> aBytes )
+        {
+            iData.AddRange( aBytes );
+        }
+
+        public void PushBack( SymByte aByte )
+        {
+            iData.Insert( 0, aByte.Value );
+        }
+
+        public SymByte Dequeue()
+        {
+            if ( IsEmpty )
+            {
+                throw new ETMException( "ERROR - buffer is empty" );
+            }
+            //
+            byte head = iData[ 0 ];
+            iData.RemoveAt( 0 );
+            return new SymByte( head );
+        }
+        #endregion
+
+        #region Properties
+        public bool IsEmpty
+        {
+            get { return iData.Count == 0; }
+        }
+
+        public int Count
+        {
+            get { return iData.Count; }
+        }
+        #endregion
+
+        #region Internal methods
+        protected List<byte> Data
+        {
+            get { return iData; }
+            set { iData = value; }
+        }
+        #endregion
+
+        #region Data members
+        List<byte> iData = new List<byte>();
+        #endregion
+    }
+}