/*

* Copyright (c) 2004-2008 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.Generic;

using System.Text;

using System.Threading;

using SymbianStructuresLib.Arm;

using SymbianStructuresLib.Arm.Instructions;

using SymbianStructuresLib.CodeSegments;

using SymbianStructuresLib.Debug.Code;

using SymbianStructuresLib.Debug.Code.Interfaces;

using SymbianCodeLib.SourceManagement.Source;

using SymbianCodeLib.SourceManagement.Provisioning;

using SymbianUtils;

using SymbianUtils.Range;

using SymbianUtils.FileTypes;

using SymbianImageLib.Common.Image;

using SymbianImageLib.Common.Content;

using SymbianImageLib.ROM.Image;

using CLPluginImg.Provider;

using CLPluginImg.Reader;

namespace CLPluginImg.Source

{

    internal class ImgSource : CodeSource, ICodeCollectionInstructionConverter

    {

        #region Constructors

        public ImgSource( string aURI, CodeSourceProvider aProvider, CodeCollection aCollection, SIContent aImageContent )

            : base( aURI, aProvider )

        {

            iImageContent = aImageContent;

            // Make sure we receive any requests from the collection object for code.

            aCollection.IfaceInstructionConverter = this;

            aCollection.IsRelocatable = aImageContent.IsRelocationSupported;

            // XIP content should be read during priming. 

            TTimeToRead timeToRead = TTimeToRead.EReadWhenPriming;

            if ( aImageContent.IsRelocationSupported )

            {

                timeToRead = TTimeToRead.EReadWhenNeeded;

            }

            else

            {

                // If the image is fixed, then so is the collection base address

                aCollection.Relocate( aImageContent.RelocationAddress );

            }

            // Must add the collection *after* setting it's properties

            base.TimeToRead = timeToRead;

            base.Add( aCollection );

        }

        #endregion

        #region From CodeSource

        protected override void DoRead( TSynchronicity aSynchronicity )

        {

            ImgReader reader = new ImgReader( this, Provider.Tracer );

            reader.Read( aSynchronicity );

        }

        protected override void OnReadComplete()

        {

            try

            {

                base.OnReadComplete();

            }

            finally

            {

                System.Diagnostics.Debug.Assert( base.Count == 1 );

                CodeCollection col = this[ 0 ];

                bool codeAvailable = col.IsCodeAvailable;

                //

                if ( iImageContent != null && codeAvailable == false )

                {

                    // Update the underlying collection with it.

                    col.Code = iImageContent.GetAllData();

                    // Don't need this anymore

                    iImageContent.Dispose();

                    iImageContent = null;

                }

            }

        }

        #endregion

        #region Properties

        public SIContent ImageContent

        {

            get { return iImageContent; }

        }

        public new ImgSourceProvider Provider

        {

            get

            {

                ImgSourceProvider provider = (ImgSourceProvider) base.Provider;

                return provider;

            }

        }

        #endregion

        #region From DisposableObject

        protected override void CleanupManagedResources()

        {

            try

            {

                base.CleanupManagedResources();

            }

            finally

            {

                if ( iImageContent != null )

                {

                    iImageContent.Dispose();

                    iImageContent = null;

                }

            }

        }

        #endregion

        #region Internal methods

        #endregion

        #region Data members

        private SIContent iImageContent;

        #endregion

    }

}