sysperfana/heapanalyser/Libraries/Engine/HeapComparisonLib/CSV/Workers/CSVWorkerAllDataSetComparator.cs
/*
* 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.IO;
using System.Collections.Generic;
using System.Threading;
using SymbianUtils;
namespace HeapComparisonLib.CSV
{
internal class CSVWorkerAllDataSetComparator : DisposableObject
{
#region Observer related
public enum TEvent
{
EExportingStarted = 0,
EExportingProgress,
EExportingComplete
}
public delegate void Observer( TEvent aEvent );
public event Observer eObserver;
#endregion
#region Constructors & destructor
public CSVWorkerAllDataSetComparator( CSVDataSetCollection aDataSets, string aOutputFileName )
{
// Create our list of sorted comparison pairs.
iDataSets = aDataSets;
iUniqueThreadDetails = IdentifyAllThreadNames();
iExcelExporter = new CSVExcelExporterAllDataSets( aOutputFileName, iUniqueThreadDetails, aDataSets.Count );
}
#endregion
#region API
public void CompareAndSaveAsync()
{
iWorkerThread = new System.Threading.Thread( new ThreadStart( ThreadFunction ) );
iWorkerThread.Start();
}
#endregion
#region Properties
public int Progress
{
get
{
int count = 0;
int index = 0;
//
lock ( this )
{
index = iIndex;
count = iDataSets.Count;
}
float ret = (float) index / (float) count;
ret *= 100.0f;
return (int) ret;
}
}
#endregion
#region From DisposableObject
protected override void CleanupManagedResources()
{
try
{
if ( iExcelExporter != null )
{
iExcelExporter.Dispose();
iExcelExporter = null;
}
}
finally
{
base.CleanupManagedResources();
}
}
#endregion
#region Thread function
private void ThreadFunction()
{
// Report started
if ( eObserver != null )
{
eObserver( TEvent.EExportingStarted );
}
// Now compare them and export to excel
CompareAndExport();
// Dispose excel object - closes file
iExcelExporter.Dispose();
iExcelExporter = null;
// Report finished
if ( eObserver != null )
{
eObserver( TEvent.EExportingComplete );
}
}
#endregion
#region Internal methods
private SortedDictionary<long, string> IdentifyAllThreadNames()
{
// Get a list of unique thread ids and their full names
SortedDictionary<long, string> list = new SortedDictionary<long, string>();
int count = iDataSets.Count;
for ( int i = 0; i<count; i++ )
{
CSVDataSet set = iDataSets[ i ];
AddThreadsToList( set, list );
}
return list;
}
private void AddThreadsToList( CSVDataSet aSet, SortedDictionary<long, string> aList )
{
int count = aSet.Count;
for ( int i = count - 1; i >= 0; i-- )
{
CSVThread master = aSet[ i ];
if ( aList.ContainsKey( master.ThreadId ) == false )
{
aList.Add( master.ThreadId, master.FullName );
}
}
}
private void CompareAndExport()
{
lock ( this )
{
iIndex = 0;
}
for( ; iIndex<iDataSets.Count; )
{
CSVDataSet set = iDataSets[ iIndex ];
iExcelExporter.Export( set );
// Report progress to any observers
if ( eObserver != null )
{
eObserver( TEvent.EExportingProgress );
}
lock ( this )
{
++iIndex;
}
}
}
#endregion
#region Data members
private readonly CSVDataSetCollection iDataSets;
private readonly SortedDictionary<long, string> iUniqueThreadDetails;
private CSVExcelExporterAllDataSets iExcelExporter = null;
private System.Threading.Thread iWorkerThread;
private int iIndex = 0;
#endregion
}
}