--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sysperfana/heapanalyser/Libraries/Engine/HeapLib/Cells/Descriptors/DescriptorAlgorithmManager.cs	Tue Jun 15 12:47:20 2010 +0300
@@ -0,0 +1,101 @@
+/*
+* 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.Generic;
+using System.Text;
+using HeapLib.Statistics;
+using HeapLib.Cells.Descriptors.Implementations.Unicode;
+using HeapLib.Cells.Descriptors.Implementations.Ascii;
+
+namespace HeapLib.Cells.Descriptors
+{
+    internal class DescriptorAlgorithmManager
+    {
+        #region API
+        public static DescriptorInfo DescriptorInfo( HeapCell aCell, HeapStatistics aStats )
+        {
+            DescriptorInfo ret = null;
+            //
+            if ( iAlgorithms.Count == 0 )
+            {
+                PrepareAlgorithms( aStats );
+            }
+            //
+            foreach ( DescriptorAlgorithmBase alg in iAlgorithms )
+            {
+                bool isDes = alg.IsDescriptor( aCell, out ret );
+                if ( isDes && ret != null )
+                {
+                    // We won't allow any algorithm to "recognise" the heap cell as a descriptor
+                    // unless it can say that the length is > 0.
+                    int length = ret.Length;
+                    if ( length > 0 )
+                    {
+                        break;
+                    }
+                    else
+                    {
+                        ret = null;
+                    }
+                }
+            }
+            return ret;
+        }
+        #endregion
+
+        #region Internal methods
+        private static void PrepareAlgorithms( HeapStatistics aStats )
+        {
+            // UNICODE
+            iAlgorithms.Add( new DesUnicodeAlgorithmHBufC( aStats ) );
+            iAlgorithms.Add( new DesUnicodeAlgorithmModifiableBuffers( aStats ) );
+
+            // ASCII
+            iAlgorithms.Add( new DesAsciiAlgorithmHBufC( aStats ) );
+            iAlgorithms.Add( new DesAsciiAlgorithmModifiableBuffers( aStats ) );
+
+            // C-STRING
+            iAlgorithms.Add( new DesAsciiAlgorithmNullTerminatedString( aStats ) );
+        }
+        #endregion
+
+        #region Data members
+        private static List<DescriptorAlgorithmBase> iAlgorithms = new List<DescriptorAlgorithmBase>();
+        #endregion
+    }
+}