1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 * 

    14 * Description:

    15 *

    16 */

    17 using System;

    18 using System.IO;

    19 using System.Collections;

    20 using System.Collections.Generic;

    21 using System.Text;

    22 using SymbianUtils;

    23 using CrashItemLib.PluginAPI;

    24 using CrashItemLib.Crash.Source;

    25 using CrashItemLib.Crash.Container;

    26 

    27 namespace CrashItemLib.Engine.Sources.Types

    28 {

    29     internal sealed class CIEngineSourceReaderNative : CIEngineSourceReader

    30     {

    31         #region Constructors

    32         public CIEngineSourceReaderNative( CIEngineSource aSource, CFFSource aPluginSource )

    33             : base( aSource )

    34         {

    35             iPluginSource = aPluginSource;

    36         }

    37         #endregion

    38 

    39         #region From CIEngineSourceReader

    40         public override CIEngineSource.TState Read()

    41         {

    42             CIEngineSource.TState ret = CIEngineSource.TState.EStateReadyCorrupt;

    43             CFFReader reader = iPluginSource.Reader;

    44             //

    45             try

    46             {

    47                 reader.Observer += new CFFReader.ReaderObserver( CFFReader_Observer );

    48                 reader.ExceptionHandler += new CFFReader.ReaderExceptionHandler( CFFReader_ExceptionHandler );

    49 

    50                 // Perform synchronous read

    51                 reader.OnNativeReadInit();

    52 

    53                 // Decide final state

    54                 CFFReader.TState readerState = reader.State;

    55                 switch ( readerState )

    56                 {

    57                 default:

    58                 case CFFReader.TState.EStateProcessing:

    59                 case CFFReader.TState.EStateUninitialised:

    60                     SymbianUtils.SymDebug.SymDebugger.Assert( false );

    61                     break;

    62                 case CFFReader.TState.EStateCorrupt:

    63                     ret = CIEngineSource.TState.EStateReadyCorrupt;

    64                     break;

    65                 case CFFReader.TState.EStateReady:

    66                     if ( base.CrashItemCount > 0 )

    67                     {

    68                         ret = CIEngineSource.TState.EStateReady;

    69                     }

    70                     else

    71                     {

    72                         ret = CIEngineSource.TState.EStateReadyNoItems;

    73                     }

    74                     break;

    75                 }

    76             }

    77             finally

    78             {

    79                 reader.Observer -= new CFFReader.ReaderObserver( CFFReader_Observer );

    80                 reader.ExceptionHandler -= new CFFReader.ReaderExceptionHandler( CFFReader_ExceptionHandler );

    81             }

    82             //

    83             return ret;

    84         }

    85 

    86         public override CFFSource.TReaderOperationType OpType

    87         {

    88             get { return CFFSource.TReaderOperationType.EReaderOpTypeNative; }

    89         }

    90         #endregion

    91 

    92         #region Properties

    93         #endregion

    94 

    95         #region Event Handlers

    96         private void CFFReader_Observer( CFFReader.TEvent aEvent, CFFReader aReader, object aContext )

    97         {

    98             base.Trace( "[CIEngineSourceNative] CFFReader_Observer() - START - aEvent: " + aEvent + ", file: " + base.Source.FileName );

    99 

   100             // This method is called for both native and trace based events

   101             if ( aEvent == CFFReader.TEvent.EReadingContainerCreated )

   102             {

   103                 CIContainer container = aContext as CIContainer;

   104                 if ( container != null )

   105                 {

   106                     base.SaveCrash( container );

   107                 }

   108             }

   109             else if ( aEvent == CFFReader.TEvent.EReadingProgress )

   110             {

   111                 int progress = ( aContext != null && aContext is int ) ? (int) aContext : 0;

   112                 base.Source.OnSourceReadingProgress( progress );

   113             }

   114 

   115             base.Trace( "[CIEngineSourceNative] CFFReader_Observer() - END - aEvent: " + aEvent + ", file: " + base.Source.FileName );

   116         }

   117 

   118         private void CFFReader_ExceptionHandler( Exception aException, CFFReader aReader )

   119         {

   120             base.AddException( aException );

   121         }

   122         #endregion

   123 

   124         #region Internal methods

   125         #endregion

   126 

   127         #region Data members

   128         private readonly CFFSource iPluginSource;

   129         #endregion

   130     }

   131 }