author | Jussi Ryoma <ext-jussi.s.ryoma@nokia.com> |
Fri, 27 Aug 2010 12:21:46 +0300 | |
changeset 3 | 045ade241ef5 |
parent 0 | 818e61de6cd1 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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using System; |
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using System.IO; |
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using System.Text; |
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using System.Threading; |
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using System.Collections; |
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using SymbianUtils.Tracer; |
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|
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namespace SymbianUtils |
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{ |
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public abstract class AsyncBinaryReaderBase : AsyncReaderBase |
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{ |
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#region Construct & destruct |
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protected AsyncBinaryReaderBase() |
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: this( null ) |
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{ |
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} |
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|
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protected AsyncBinaryReaderBase( ITracer aTracer ) |
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: base( aTracer ) |
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{ |
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} |
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#endregion |
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|
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#region Read handlers |
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protected virtual bool ContinueProcessing() |
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{ |
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return false; |
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} |
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|
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protected virtual bool ImmediateAbort() |
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{ |
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return false; |
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} |
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|
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protected virtual void HandleReadBytes( byte[] aData ) |
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{ |
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} |
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#endregion |
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|
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#region Abstract reading framework |
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protected abstract byte[] ProvideReadBytes(); |
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#endregion |
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|
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#region Internal methods |
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protected override void PerformOperation() |
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{ |
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bool forcedContinue = false; |
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bool immediateAbort = false; |
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byte[] bytes; |
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// |
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lock( this ) |
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{ |
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bytes = ProvideReadBytes(); |
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forcedContinue = ContinueProcessing(); |
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immediateAbort = ImmediateAbort(); |
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} |
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System.DateTime tenPercentTime = DateTime.Now; |
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int oldProgress = 0; |
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int newProgress = 0; |
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while ( ( bytes != null && bytes.Length > 0 ) || forcedContinue && !immediateAbort ) |
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{ |
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lock( this ) |
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{ |
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HandleReadBytes( bytes ); |
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} |
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// |
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lock( this ) |
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{ |
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newProgress = Progress; |
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if ( newProgress != oldProgress ) |
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{ |
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#if DEBUG |
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if ( newProgress > 0 && ( newProgress % 10 ) == 0 ) |
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{ |
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System.DateTime now = DateTime.Now; |
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long intermediateTickDuration = ( ( now.Ticks - tenPercentTime.Ticks ) / 100 ); |
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System.Diagnostics.Debug.WriteLine( newProgress.ToString( "d2" ) + " % COMPLETE - " + intermediateTickDuration.ToString( "d12" ) ); |
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tenPercentTime = now; |
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} |
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#endif |
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NotifyEvent( TEvent.EReadingProgress ); |
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oldProgress = newProgress; |
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} |
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bytes = ProvideReadBytes(); |
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} |
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// |
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lock( this ) |
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{ |
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forcedContinue = ContinueProcessing(); |
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} |
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} |
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|
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System.DateTime endTime = DateTime.Now; |
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long tickDuration = ( ( endTime.Ticks - iOperationStartTime.Ticks ) / 100 ); |
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System.Diagnostics.Debug.WriteLine( "BINARY READ COMPLETE - " + tickDuration.ToString( "d12" ) ); |
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} |
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115 |
|
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#endregion |
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} |
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parents:
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} |