author | Pat Downey <patd@symbian.org> |
Tue, 15 Jun 2010 12:49:00 +0100 | |
branch | GCC_SURGE |
changeset 5 | 32c1e5a1c52c |
parent 0 | 671dee74050a |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2010 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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|
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#include <S32MEM.H> |
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#include <e32debug.H> |
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#include "CCPixAsyncronizer.h" |
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|
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// ----------------------------------------------------------------------------- |
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// CCPixAsyncronizer::NewL() |
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// ----------------------------------------------------------------------------- |
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// |
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CCPixAsyncronizer* CCPixAsyncronizer::NewL() |
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{ |
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CCPixAsyncronizer* self = CCPixAsyncronizer::NewLC(); |
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CleanupStack::Pop(self); |
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return self; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CCPixAsyncronizer::NewLC() |
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// ----------------------------------------------------------------------------- |
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// |
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CCPixAsyncronizer* CCPixAsyncronizer::NewLC() |
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{ |
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CCPixAsyncronizer* self = new (ELeave) CCPixAsyncronizer; |
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CleanupStack::PushL(self); |
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self->ConstructL(); |
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return self; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CCPixAsyncronizer::~CCPixAsyncronizer() |
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// ----------------------------------------------------------------------------- |
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// |
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CCPixAsyncronizer::~CCPixAsyncronizer() |
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{ |
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Cancel(); |
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iMainThread.Close(); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CCPixAsyncronizer::Start() |
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// ----------------------------------------------------------------------------- |
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// |
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void CCPixAsyncronizer::Start( |
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TCPixTaskType aType, |
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MCPixAsyncronizerObserver* aObserver, |
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const RMessage2& aMessage ) |
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{ |
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iType = aType; |
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iMessage = aMessage; |
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iObserver = aObserver; |
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iStatus = KRequestPending; |
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SetActive(); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CCPixAsyncronizer::CancelWhenDone() |
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// ----------------------------------------------------------------------------- |
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// |
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void CCPixAsyncronizer::CancelWhenDone(const RMessage2& aMessage) |
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{ |
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if (IsActive()) |
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{ |
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// Cancelling uncancellable task. Just wait until task completes |
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// and complete cancel request after that. |
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iCancelMessage = aMessage; |
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iCancelAllOperationPending = ETrue; |
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} |
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else |
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{ |
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aMessage.Complete(KErrNone); |
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} |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CCPixAsyncronizer::CompletionCallback() |
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// ----------------------------------------------------------------------------- |
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// |
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void CCPixAsyncronizer::CompletionCallback() |
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{ |
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iWaitingForCompletion = ETrue; |
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|
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// CompletionCallback CAN BE and IS called from another thread, |
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// so care should be taken what kind of actions are done in here |
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TRequestStatus* status = &iStatus; |
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|
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if ( iStatus != KRequestPending ) |
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{ |
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// Cancellation already done |
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return; |
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} |
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|
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iMainThread.RequestComplete(status, KErrNone); |
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} |
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// ----------------------------------------------------------------------------- |
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// CCPixAsyncronizer::RunL() |
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// ----------------------------------------------------------------------------- |
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// |
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void CCPixAsyncronizer::RunL() |
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{ |
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iWaitingForCompletion = EFalse; |
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if ( iCancelAllOperationPending ) |
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{ |
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iCancelAllOperationPending = EFalse; |
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iCancelMessage.Complete(KErrNone); |
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} |
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NotifyObserver( iStatus.Int() ); |
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} |
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// ----------------------------------------------------------------------------- |
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// CCPixAsyncronizer::DoCancel() |
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// ----------------------------------------------------------------------------- |
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// |
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void CCPixAsyncronizer::DoCancel() |
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{ |
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if ( iWaitingForCompletion ) |
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{ |
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return; |
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} |
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TRequestStatus* status = &iStatus; |
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iMainThread.RequestComplete(status, KErrCancel); |
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NotifyObserver(KErrCancel); |
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} |
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// ----------------------------------------------------------------------------- |
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// CCPixAsyncronizer::NotifyObserver() |
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// ----------------------------------------------------------------------------- |
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// |
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void CCPixAsyncronizer::NotifyObserver(TInt aErrorCode) |
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{ |
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if (iObserver) |
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{ |
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iObserver->HandleAsyncronizerComplete(iType, aErrorCode, iMessage); |
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} |
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iObserver = NULL; |
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} |
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// ----------------------------------------------------------------------------- |
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// CCPixAsyncronizer::CCPixAsyncronizer() |
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// ----------------------------------------------------------------------------- |
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// |
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CCPixAsyncronizer::CCPixAsyncronizer() |
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: CActive(CActive::EPriorityHigh), iObserver(NULL) |
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{ |
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CActiveScheduler::Add(this); |
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} |
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// ----------------------------------------------------------------------------- |
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// CCPixAsyncronizer::ConstructL() |
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// ----------------------------------------------------------------------------- |
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// |
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void CCPixAsyncronizer::ConstructL() |
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{ |
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User::LeaveIfError(iMainThread.Open(RThread().Id())); |
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} |