author | jake |
Wed, 31 Mar 2010 13:30:40 +0300 | |
branch | RCL_3 |
changeset 44 | c2817bb2a55c |
parent 0 | 79c6a41cd166 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008 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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#ifndef CPACTIONHANDLERTHREAD_H_ |
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#define CPACTIONHANDLERTHREAD_H_ |
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|
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#include <e32base.h> |
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#include <eikenv.h> |
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#include <eikappui.h> |
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class MLiwInterface; |
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class CLiwGenericParamList; |
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class CCPActionManager; |
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|
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/** |
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* The function to be passed as an argument to RThread::Create. |
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* |
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* It just calls CCPActionHandlerThread::ThreadFunction. The only |
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* reason this declaration is in the header file is to let |
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* CCPActionHandlerThread declare friendship with this funcion. |
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* |
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* @param aParam pointer to CCPActionHandlerThread object |
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* @return error code |
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*/ |
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TInt CPExecutionThreadFunction( TAny* aParam ); |
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|
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/** |
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* Action handler thread. |
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* |
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* Provides easy-to-use interface for executing plugin actions |
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* in a separate thread. |
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* @since S60 5.0 |
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*/ |
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class CCPActionHandlerThread: public CBase |
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{ |
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friend TInt CPExecutionThreadFunction( TAny* ); |
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public: |
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|
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/** |
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* Creates new instance of CCPActionHandlerThread. |
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* |
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* @return new instance of CCPActionHandlerThread |
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*/ |
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static CCPActionHandlerThread* NewL(); |
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/** |
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* Creates new instance of CCPActionHandlerThread. |
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* |
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* @return new instance of CCPActionHandlerThread |
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*/ |
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static CCPActionHandlerThread* NewLC(); |
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/** |
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* Destructor. |
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* Stops the action execution thread. |
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*/ |
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~CCPActionHandlerThread(); |
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/** |
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* Executes an action handler action in the action execution thread. |
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* |
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* @param aActionParams action parameters |
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*/ |
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void ExecuteL( const CLiwGenericParamList& aActionParams ); |
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/** |
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* Starts the action execution thread. |
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* |
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* Creates a new instance of action execution thread |
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* provided it is not running already. |
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*/ |
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void StartExecutionThreadIfNeededL(); |
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/** |
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* Checks whether action execution thread is alive. |
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* |
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* @return ETrue if the thread is alive, EFalse otherwise. |
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*/ |
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TBool ExecutionThreadRunning(); |
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private: |
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/** |
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* Constructor. |
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*/ |
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CCPActionHandlerThread(); |
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/** |
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* 2nd phase constructor. |
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*/ |
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void ConstructL(); |
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/** |
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* This function is run is a separate thread. It creates |
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* CServerEikonEnv and CServerAppUi objects, which provide |
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* a trap cleanup and an active scheduler for the thread and |
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* then starts the active scheduler. |
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* |
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* @return error code |
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*/ |
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TInt ThreadFunction(); |
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|
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private: // internal data types |
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|
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/** |
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* EIkonEnv for the server process. |
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*/ |
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class CServerEikonEnv : public CEikonEnv |
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{ |
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public: |
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void DestroyEnvironment(); |
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void ConstructL(); |
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}; |
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|
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/** |
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* EikAppUi for the server process. |
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*/ |
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class CServerAppUi : public CEikAppUi |
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{ |
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public: |
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~CServerAppUi(); |
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void ConstructL(); |
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}; |
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|
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/** |
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* A simple active object for executin actions. |
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* Objects of this class are created and destroyed |
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* by action execution thread. |
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*/ |
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class CActionExecutorAO: public CActive |
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{ |
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public: |
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/** |
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* Factory method. |
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*/ |
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static CActionExecutorAO* NewL(); |
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/** |
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* Factory method. |
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*/ |
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static CActionExecutorAO* NewLC(); |
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/** |
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* Destructor. |
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*/ |
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~CActionExecutorAO(); |
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/** |
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* The RunL method which is run whever an action needs |
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* to be executed in the action execution thread. |
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* It just executes the action using the parameters |
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* supplied with a call to SetActionParams. If that |
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* parameters are NULL, it stops the active scheduler |
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* thus terminating action execution thread. |
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*/ |
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void RunL(); |
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/** |
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* A dummy cancel method required by Symbian. |
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*/ |
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void DoCancel(); |
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/** |
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* Returns a pointer to this active object's iStatus |
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* member variable. |
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*/ |
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TRequestStatus* RequestStatus(); |
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/** |
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* TODO |
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* Sets paramters of the action to be executed in RunL. |
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* This method is supposed to be called from the main CPS thread. |
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* @param aActionParams action parameters |
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*/ |
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void SetActionParams( const CLiwGenericParamList* aActionParams ); |
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private: |
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/** |
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* Constructor. |
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*/ |
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CActionExecutorAO(); |
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/** |
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* 2nd phase constructor. |
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*/ |
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void ConstructL(); |
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private: |
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/** |
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* Parameters of the action to be executed in RunL. |
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* Not own. |
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*/ |
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const CLiwGenericParamList* iActionParams; |
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/** |
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* Action manager instance. |
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* Own. |
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*/ |
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CCPActionManager* iActionManager; |
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}; |
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|
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private: // data |
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/** |
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* Handle to the action execution thread. |
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* Own. |
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*/ |
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RThread iActionExecThread; |
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|
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/** |
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* Active object created in the action execution thread. |
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* Own. |
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*/ |
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CActionExecutorAO *iActionExecutorAO; |
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/** |
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* ETrue if action execution thread was started at least once. |
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*/ |
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TBool iActionExecThreadStarted; |
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/** |
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* A counter for naming action execution thread. |
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* |
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* Every action execution thread has a number appended to its name. |
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* When the thread dies (i.e. as a result of panic in a plugin), a |
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* new instance of that thread is started with the number in the name |
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* increased by one. |
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*/ |
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TUint iThreadNum; |
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}; |
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#endif /* CPACTIONHANDLERTHREAD_H_ */ |