author | Stefan Karlsson <stefan.karlsson@nokia.com> |
Tue, 30 Mar 2010 13:00:58 +0100 | |
branch | CompilerCompatibility |
changeset 18 | c93bcd9bf89c |
parent 0 | b497e44ab2fc |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2007 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: Manages Diagnostics Plug-in |
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* |
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*/ |
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|
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#ifndef DIAGPLUGINPOOLIMPL_H |
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#define DIAGPLUGINPOOLIMPL_H |
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// INCLUDES |
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#include <e32base.h> // CActive |
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#include <implementationinformation.h> // RImplInfoPtrArray |
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|
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// FORWARD DECLARATIONS |
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class MDiagPlugin; |
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class MDiagPluginPoolObserver; |
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class CDiagPluginConstructionParam; |
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class MDiagSuitePlugin; |
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|
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/** |
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* Diagnostics Framework Plugin Pool Implementation Class |
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* |
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* This class is used to load Diagnostics ECom plug-ins. It works with both |
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* Suite Plug-in and Test Plug-in. Once loaded, it will manage the life |
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* cycle of the plug-ins. |
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* |
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* All loaded plug-ins will be destroyed when pool is deleted. |
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* |
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* @since S60 v5.0 |
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*/ |
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NONSHARABLE_CLASS( CDiagPluginPoolImpl ) : public CActive |
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{ |
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public: |
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|
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/** |
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* Two-phased constructors |
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* |
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* @param aObserver Plug-in Pool observer. |
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* @return New instance of CDiagPluginPool |
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*/ |
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static CDiagPluginPoolImpl* NewL( MDiagPluginPoolObserver& aObserver ); |
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static CDiagPluginPoolImpl* NewLC( MDiagPluginPoolObserver& aObserver ); |
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|
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/** |
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* Destructor |
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* |
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*/ |
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virtual ~CDiagPluginPoolImpl(); |
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public: // new API |
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/** |
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* Loads all plug-ins. Progress is notified via MDiagPluginPoolObserver. |
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* Leave codes: KErrNone - Success. |
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* KErrNotFound - No plugins |
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* KErrAlreadyExists - Plug-ins have already been loaded. |
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*/ |
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void LoadAsyncL(); |
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/** |
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* Create an instance of a plug-in. It can be a test plug-in or suite plug-in. |
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* If this is a suite, it will not have its children associated with it since |
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* will require children to be loaded as well. |
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* |
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* Plug-ins created using this method is not part of plug-in pool. Therefore |
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* client must manage the life cycle of the plug-in. |
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* |
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* @param aUid - Implementation Uid of plug-in. |
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* @return Newly instantiated plug-in. Ownership is transferred to caller. |
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*/ |
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static MDiagPlugin* CreatePluginL( const TUid aUid ); |
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/** |
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* Find Plug-in that matches given Uid. |
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* |
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* @param aUid Uid of plug-in to search. |
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* @param aPlugin Reference to Plugin found. Engine owns this plug-in. |
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* Client must not deallocate plug-in. |
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* @return TInt KErrNone - Success. |
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* KErrNotFound - Not found. |
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* KErrNotReady - Plug-ins are not yet loaded. |
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*/ |
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TInt FindPlugin( TUid aUid, MDiagPlugin*& aPlugin ) const; |
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/** |
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* Find Plug-in that matches given service name. |
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* |
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* @param aServiceName Service name of the plug-in. Name must match exactly. |
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* @param aPlugin Reference to Plugin found. Engine owns this plug-in. |
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* Client must not deallocate plug-in. |
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* @return TInt KErrNone - Success. |
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* KErrNotFound - Not found. |
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* KErrNotReady - Plug-ins are not yet loaded. |
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*/ |
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TInt FindPlugin( const TDesC& aServiceName, |
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MDiagPlugin*& aPlugin ) const; |
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private: // internal types |
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typedef RPointerArray<CDiagPluginConstructionParam> RConstructionParamArray; |
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private: // private constructors |
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/** |
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* Construct a CDiagPluginPoolImpl object |
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* |
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* @param aObserver The observer which listens to plug-in pool events |
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*/ |
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CDiagPluginPoolImpl( MDiagPluginPoolObserver& aObserver ); |
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/** |
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* 2nd phase constructor |
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* |
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*/ |
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void ConstructL(); |
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private: // internal API |
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/** |
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* Obtain the list construction paramaters to construct a plug-in |
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* |
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* @return Pointer to construction paramaters pointer array |
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*/ |
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static RConstructionParamArray* GeneratePluginListL(); |
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/** |
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* Generate parmaters to construct a plug-in given the ECOM implementation |
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* info structure |
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* |
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* @param aInfo Pointer to the implementation info structure |
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* @return Pointer to newly generated construction params |
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*/ |
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static CDiagPluginConstructionParam* GenerateConstructionParamsLC( |
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const CImplementationInformation* aInfo ); |
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/** |
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* Create a plug-in from given construction data |
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* |
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* @param aInfo Pointer to the implementation info structure |
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* @return Pointer to the newly created plug-in |
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*/ |
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static MDiagPlugin* CreatePluginFromConstructionParamsL( |
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const CDiagPluginConstructionParam* aParams ); |
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/** |
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* Setup active object for next iteration of plug-in loading |
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* |
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*/ |
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void SetNextIteration(); |
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/** |
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* Load the next plug-in in the list per built in iterator |
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* |
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*/ |
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void LoadNextPluginL(); |
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/** |
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* Add plug-in to plug-in pool by inserting into the plug-in tree. |
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* Plug-in ownership is transferred to the Plug-in Pool if it is |
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* supported. If the plug-in is not supported, it is deleted. |
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* |
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* @param aPlugin pointer to the new plug-in to be added |
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* @return TUid UID of the plug-in to report back to the application. |
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* Set to TUid::Null() if the plug-in was not added to the pool. |
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*/ |
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TUid AddPluginToPoolLD( MDiagPlugin* aPlugin ); |
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|
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/** |
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* Destroy implementation info regarding ECOM plug-ins |
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* |
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*/ |
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void DestroyConstructionParams(); |
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/** |
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* Call when a plug-in is loaded to add a newly loaded plug-in to a currently |
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* loaded suite (if available) |
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* no ownership transfer |
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* |
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* @param aPluginSuite pointer to the new plug-in to be added |
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*/ |
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void AddNewPluginToSuiteL(MDiagPlugin* aPlugin); |
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/** |
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* Call when a suite is loaded to add any existing parentless plug-ins with |
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* matching parent UID to suite |
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* no ownership transfer |
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* |
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* @param aPluginSuite pointer to the new suite to be added |
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*/ |
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void AddPluginsToNewSuiteL(MDiagSuitePlugin* aPluginSuite); |
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/** |
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* Resets all member data and notifies observer that load is copmlete |
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* |
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* @param aErrorCode Plug-In load error |
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* @return LoadCompletedL error, if any |
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*/ |
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TInt ResetAndNotify(TInt aErrorCode); |
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private: // From CActive |
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/** |
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* @see CActive::RunL |
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*/ |
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virtual void RunL(); |
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/** |
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* @see CActive::DoCancel |
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*/ |
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virtual void DoCancel(); |
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/** |
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* @see CActive::RunError |
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*/ |
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virtual TInt RunError( TInt aError ); |
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private: // member data |
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MDiagPluginPoolObserver& iObserver; |
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// List of plug-ins that have been loaded |
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RPointerArray<MDiagPlugin> iPlugins; |
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// Array of plug-in construction params |
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// owned |
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RConstructionParamArray* iConstructionParamArray; |
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// Indicates that all plug-ins have been loaded |
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TBool iPluginsLoaded; |
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// Indicates that plug-ins are currently loading |
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TBool iPluginsLoading; |
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// Index of current plug-in for plug-in load iteration |
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TInt iCurrentPluginIndex; |
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// Holds error code for first error found in loading process |
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TInt iErrorCode; |
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// Total number of plug-ins found |
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TInt iTotalPluginsFound; |
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}; |
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#endif // DIAGPLUGINPOOLIMPL_H |
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// End of File |
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