diff -r 8e12a575a9b5 -r 15296fd0af4a sysperfana/heapanalyser/Libraries/Engine/HeapLib/Statistics/Tracking/Base/TrackingCollectionBase.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sysperfana/heapanalyser/Libraries/Engine/HeapLib/Statistics/Tracking/Base/TrackingCollectionBase.cs	Tue Jun 15 12:47:20 2010 +0300
@@ -0,0 +1,207 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*
+* - Redistributions of source code must retain the above copyright notice,
+*   this list of conditions and the following disclaimer.
+* - Redistributions in binary form must reproduce the above copyright notice,
+*   this list of conditions and the following disclaimer in the documentation
+*   and/or other materials provided with the distribution.
+* - Neither the name of Nokia Corporation nor the names of its contributors
+*   may be used to endorse or promote products derived from this software
+*   without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE.
+* 
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using SymbianUtils.Collections;
+using SymbianStructuresLib.Debug.Symbols;
+using HeapLib.Cells;
+
+namespace HeapLib.Statistics.Tracking.Base
+{
+	public abstract class TrackingCollectionBase : IEnumerable<TrackingInfo>
+	{
+        #region Constructors & destructor
+	    protected TrackingCollectionBase()
+		{
+        }
+        #endregion
+
+        #region API
+        internal abstract void Track( HeapCell aCell );
+
+        public virtual void Remove( TrackingInfo aItem )
+        {
+            throw new NotSupportedException();
+        }
+        #endregion
+
+        #region Sorting
+        public void SortByAllocatedMemory()
+        {
+            TrackingInfoSortByAssociatedMemory comparer = new TrackingInfoSortByAssociatedMemory( false );
+            Sort( comparer );
+        }
+
+        public void SortByCount()
+        {
+            TrackingInfoSortByCount comparer = new TrackingInfoSortByCount( false );
+            Sort( comparer );
+        }
+
+        public void SortByAssociatedCellCount()
+        {
+            TrackingInfoSortByAssociatedCellCount comparer = new TrackingInfoSortByAssociatedCellCount( false );
+            Sort( comparer );
+        }
+
+        public void SortBySymbolName()
+        {
+            TrackingInfoSortBySymbolName comparer = new TrackingInfoSortBySymbolName( false );
+            Sort( comparer );
+        }
+
+        public void SortByPayloadLength()
+        {
+            TrackingInfoSortByPayloadLength comparer = new TrackingInfoSortByPayloadLength( false );
+            Sort( comparer );
+        }
+        #endregion
+
+        #region Properties
+        public abstract int Count
+        {
+            get;
+        }
+ 
+        public long TypeSize
+        {
+            get { return iTypeSize; }
+        }
+
+        public long CellMatchCount
+        {
+            get { return iCellMatchCount; }
+        }
+
+        public TrackingInfo EntryWithSmallestCount
+        {
+            get
+            {
+                TrackingInfo ret = null;
+                //
+                foreach ( TrackingInfo entry in this )
+                {
+                    if ( ret == null || entry.Count < ret.Count )
+                    {
+                        ret = entry;
+                    }
+                }
+                //
+                return ret;
+            }
+        }
+
+        public TrackingInfo EntryWithLargestCount
+        {
+            get
+            {
+                TrackingInfo ret = null;
+                //
+                foreach ( TrackingInfo entry in this )
+                {
+                    if ( ret == null || entry.Count > ret.Count )
+                    {
+                        ret = entry;
+                    }
+                }
+                //
+                return ret;
+            }
+        }
+
+        public abstract TrackingInfo this[ int aIndex ]
+        {
+            get;
+        }
+
+        public virtual TrackingInfo this[ Symbol aSymbol ]
+        {
+            get
+            {
+                throw new NotSupportedException();
+            }
+        }
+        #endregion
+
+        #region Internal methods
+        protected abstract void Sort( IComparer<TrackingInfo> aComparer );
+
+        protected void HandleCell( HeapCell aCell )
+        {
+            // Keep track of the total size of cells that
+            // actually have symbols associated with them
+            if  ( aCell.Symbol != null )
+            {
+                iTypeSize += aCell.Length;
+
+                // Every cell we see that matches goes towards our 
+                // tracking count.
+                ++iCellMatchCount;
+            }
+        }
+        #endregion
+
+        #region IEnumerable Members
+        IEnumerator<TrackingInfo> IEnumerable<TrackingInfo>.GetEnumerator()
+        {
+            int count = this.Count;
+            for ( int i = 0; i < count; i++ )
+            {
+                TrackingInfo entry = this[ i ];
+                yield return entry;
+            }
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            int count = this.Count;
+            for ( int i = 0; i < count; i++ )
+            {
+                TrackingInfo entry = this[ i ];
+                yield return entry;
+            }
+        }
+        #endregion
+
+        #region Data members
+        private long iTypeSize = 0;
+        private long iCellMatchCount = 0;
+        #endregion
+    }
+}
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