diff -r 8e12a575a9b5 -r 15296fd0af4a sysperfana/heapanalyser/Libraries/Engine/HeapLib/Relationships/RelationshipManager.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sysperfana/heapanalyser/Libraries/Engine/HeapLib/Relationships/RelationshipManager.cs	Tue Jun 15 12:47:20 2010 +0300
@@ -0,0 +1,186 @@
+/*
+* 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 System.Text;
+using SymbianUtils.RawItems;
+using SymbianUtils.Utilities;
+using HeapLib.Array;
+using HeapLib.Cells;
+
+namespace HeapLib.Relationships
+{
+    public class RelationshipManager
+    {
+        #region Constructors & destructor
+        internal RelationshipManager( HeapCell aCell )
+        {
+            iCell = aCell;
+        }
+        #endregion
+
+        #region API
+        internal void AddReferencedBy( HeapCell aCell )
+        {
+            iReferencedBy.Add( aCell );
+        }
+
+        internal void AddEmbeddedReferenceTo( RawItem aRawItemInThisCell, HeapCell aToCell )
+        {
+            System.Diagnostics.Debug.Assert( aRawItemInThisCell.Tag == null );
+
+            if ( ContainsEmbeddedReference( aToCell ) == false )
+            {
+                // Make reference description
+                RelationshipInfo referenceTo = new RelationshipInfo( iCell, aRawItemInThisCell, aToCell );
+
+                // Set up relationship between a raw item in this cell and
+                // the specified other cell.
+                aRawItemInThisCell.Tag = referenceTo;
+
+                // This cell now contains a reference to the other cell.
+                iEmbeddedReferencesTo.Add( aToCell.Address, referenceTo );
+
+                // aAnotherCell has been referenced by 'me'
+                aToCell.RelationshipManager.ReferencedBy.Add( Parent );
+            }
+            else
+            {
+                //System.Diagnostics.Debug.WriteLine( "PREVENTING CYCLIC LINK - Cell: 0x" + aCell.Address.ToString("x8") + " already contains a linkRef to: 0x" + cell.Address.ToString("x8") );
+            }
+        }
+
+        public HeapCell EmbeddedReference( uint aAddress )
+        {
+            HeapCell ret = null;
+            //
+            if ( ContainsEmbeddedReference( aAddress ) )
+            {
+                RelationshipInfo info = iEmbeddedReferencesTo[ aAddress ];
+                ret = info.ToCell;
+            }
+            //
+            return ret;
+        }
+
+        public bool ContainsEmbeddedReference( uint aAddress )
+        {
+            bool found = iEmbeddedReferencesTo.ContainsKey( aAddress );
+            return found;
+        }
+
+        public bool ContainsEmbeddedReference( HeapCell aCell )
+        {
+            return ContainsEmbeddedReference( aCell.Address );
+        }
+        #endregion
+
+        #region Properties
+        public HeapCell Parent
+        {
+            get { return iCell; }
+        }
+
+        // <summary>
+        // The array of cells that this particular cell contains references
+        // to within it's raw item array (i.e. it's payload section).
+        // </summary>
+        public RelationshipCollection EmbeddedReferencesTo
+        {
+            get { return new RelationshipCollection( iEmbeddedReferencesTo ); }
+        }
+
+        // <summary>
+        // The array of cells that are referencing this cell, i.e. the
+        // list of other cells that contain addresses that point to 'me'
+        // </summary>
+        public HeapCellArrayBase ReferencedBy
+        {
+            get { return iReferencedBy; }
+        }
+
+        public HeapCell ReferencedByUnique
+        {
+            get
+            {
+                if (iReferencedBy.Count == 1)
+                    return iReferencedBy[0];
+
+
+                if (iReferencedBy.Count > 1)
+                {
+                    HeapCell firstHeapCell = iReferencedBy[0];
+
+                    for (int i = 1; i < iReferencedBy.Count; i++)
+                    {
+                        if (!firstHeapCell.Equals(iReferencedBy[i]))
+                        {
+                            return null;
+                        }
+                    }
+                    return iReferencedBy[0];
+                }
+
+                return null;
+            }
+        }
+        
+        public uint PayloadLengthOfEmbeddedCells
+        {
+            get
+            {
+                uint ret = 0;
+                //
+                foreach ( RelationshipInfo info in EmbeddedReferencesTo )
+                {
+                    ret += info.ToCell.PayloadLength;
+                }
+                //
+                return ret;
+            }
+        }
+        #endregion
+
+        #region Data members
+        private readonly HeapCell iCell;
+        private Dictionary<uint, RelationshipInfo> iEmbeddedReferencesTo = new Dictionary<uint, RelationshipInfo>();
+        private HeapCellArrayUnsorted iReferencedBy = new HeapCellArrayUnsorted();
+        #endregion
+    }
+}