diff -r 000000000000 -r 818e61de6cd1 crashanalysercmd/Libraries/Engine/CrashItemLib/Engine/Sources/CIEngineSource.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/Libraries/Engine/CrashItemLib/Engine/Sources/CIEngineSource.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,238 @@
+/*
+* 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.IO;
+using System.Collections;
+using System.Collections.Generic;
+using System.Text;
+using SymbianUtils;
+using CrashItemLib.PluginAPI;
+using CrashItemLib.Crash.Source;
+using CrashItemLib.Crash.Container;
+using CrashItemLib.Engine.Sources.Types;
+
+namespace CrashItemLib.Engine.Sources
+{
+    public class CIEngineSource : IEnumerable<CIContainer>
+    {
+        #region Enumerations
+        public enum TState
+        {
+            EStateUninitialised = 0,
+            EStateProcessing,
+            EStateReady,
+            EStateReadyNoItems,
+            EStateReadyCorrupt
+        }
+        #endregion
+
+        #region Static constructors
+        /// <summary>
+        /// Create a source that is linked with a single crash file format plugin
+        /// </summary>
+        public static CIEngineSource NewNative( CIEngine aEngine, CFFSource aEntry )
+        {
+            CIEngineSource ret = new CIEngineSource( aEngine, aEntry );
+            return ret;
+        }
+
+        /// <summary>
+        /// Create a source that is associated with a trace file and potentially one
+        /// or more plugins which all think they are capable of interpreting trace-based
+        /// content.
+        /// </summary>
+        public static CIEngineSource NewTrace( CIEngine aEngine, CFFSource[] aEntries )
+        {
+            CIEngineSource ret = new CIEngineSource( aEngine, aEntries );
+            return ret;
+        }
+        #endregion
+
+        #region Constructors
+        private CIEngineSource( CIEngine aEngine, CFFSource aEntry )
+        {
+            iEngine = aEngine;
+            iFile = aEntry.MasterFile;
+            iReader = new CIEngineSourceReaderNative( this, aEntry );
+        }
+
+        private CIEngineSource( CIEngine aEngine, CFFSource[] aEntries )
+        {
+            if ( aEntries == null || aEntries.Length == 0 )
+            {
+                throw new ArgumentException( "Cannot create trace-based source without entry list" );
+            }
+
+            iEngine = aEngine;
+            iFile = aEntries[0].MasterFile;
+            iReader = new CIEngineSourceReaderTrace( this, aEntries );
+        }
+        #endregion
+
+        #region Framework API
+        #endregion
+
+        #region API
+        internal void SaveContainer( CIContainer aContainer )
+        {
+            // Update list of created containers
+            lock ( iCreatedContainers )
+            {
+                iCreatedContainers.Add( aContainer );
+            }
+
+            // Notify the engine which will cascade to UI
+            iEngine.Add( aContainer );
+        }
+
+        internal void Read()
+        {
+            lock ( iCreatedContainers )
+            {
+                iCreatedContainers.Clear();
+            }
+            State = TState.EStateProcessing;
+
+            // We need this in order to report progress to the engine
+            System.Diagnostics.Debug.Assert( iCollection != null );
+
+            // Initiate synchronous read and record any exceptions
+            TState finalState = iReader.Read();
+            this.State = finalState;
+        }
+
+        internal void OnSourceReadingProgress( int aProgress )
+        {
+            iCollection.OnSourceProgress( this, aProgress );
+        }
+        #endregion
+
+        #region Properties
+        public TState State
+        {
+            get
+            {
+                lock ( iSyncRoot )
+                {
+                    return iState;
+                }
+            }
+            protected set
+            {
+                lock ( iSyncRoot )
+                {
+                    iState = value;
+                }
+                //
+                iCollection.OnSourceStateChanged( this );
+            }
+        }
+
+        public bool IsReady
+        {
+            get
+            {
+                lock ( iSyncRoot )
+                {
+                    bool ready = false;
+                    //
+                    switch ( iState )
+                    {
+                    case TState.EStateReady:
+                    case TState.EStateReadyCorrupt:
+                    case TState.EStateReadyNoItems:
+                        ready = true;
+                        break;
+                    default:
+                        break;
+                    }
+                    //
+                    return ready;
+                }
+            }
+        }
+
+        public FileInfo File
+        {
+            get { return iFile; }
+        }
+
+        public string FileName
+        {
+            get { return iFile.FullName; }
+        }
+
+        public int ContainerCount
+        {
+            get
+            {
+                lock ( iCreatedContainers )
+                {
+                    return iCreatedContainers.Count;
+                }
+            }
+        }
+
+        internal CFFSource.TReaderOperationType OpType
+        {
+            get { return iReader.OpType; }
+        }
+
+        internal CIEngine Engine
+        {
+            get { return iEngine; }
+        }
+
+        internal CIEngineSourceCollection Collection
+        {
+            get { return iCollection; }
+            set { iCollection = value; }
+        }
+        #endregion
+
+        #region Internal methods
+        #endregion
+
+        #region From IEnumerable<CIContainer>
+        public IEnumerator<CIContainer> GetEnumerator()
+        {
+            foreach ( CIContainer container in iCreatedContainers )
+            {
+                yield return container;
+            }
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            foreach ( CIContainer container in iCreatedContainers )
+            {
+                yield return container;
+            }
+        }
+        #endregion
+
+        #region Data members
+        private readonly CIEngine iEngine;
+        private readonly FileInfo iFile;
+        private readonly CIEngineSourceReader iReader;
+        private object iSyncRoot = new object();
+        private TState iState = TState.EStateUninitialised;
+        private CIContainerCollection iCreatedContainers = new CIContainerCollection();
+        private CIEngineSourceCollection iCollection = null;
+        #endregion
+    }
+}