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// Copyright (c) 1995-2009 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 the License "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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// f32\sfile\sf_plugin.h
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//
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//
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#if !defined(__SF_PLUGIN_H__)
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#define __SF_PLUGIN_H__
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#include "message.h"
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#include <f32fsys.h>
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#include <F32plugin.h>
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class CFsSyncMessageScheduler;
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class CFsInternalRequest;
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class TFsPluginThread
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{
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public:
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TFsPluginThread();
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public:
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TInt iDriveNumber;
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TBool iIsAvailable;
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RMutex iPluginLock;
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CPluginThread* iThread;
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TUint iId;
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};
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/**
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* Plugin Manager
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*
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* - Initialised in main thread
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*
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* - Contains array of request chains which represent the
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* plugins registered for each request type.
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*
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* - Plugins register their interest with each request type,
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* specifying the associated thread and pre/post processing options.
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*/
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class FsPluginManager
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{
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public:
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static void InitialiseL();
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static TInt MountPlugin(CFsPluginFactory& aPluginFactory, TInt aDrive, TInt aPos);
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static void DismountPlugin(CFsPluginFactory& aPluginFactory, TInt aPos);
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static TInt InstallPluginFactory(CFsPluginFactory* aFactory,RLibrary aLib);
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static CFsPluginFactory* GetPluginFactory(const TDesC& aName);
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static TInt NextPlugin(CFsPlugin*& aPlugin, CFsMessageRequest* aMsgRequest, TBool aLock, TBool aCheckCurrentOperation=ETrue);
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static TInt PrevPlugin(CFsPlugin*& aPlugin, CFsMessageRequest* aMsgRequest, TBool aLock);
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static TInt InsertInPluginStack(CFsPlugin*& aPlugin,TInt aPos);
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static TInt IsInChain(TInt aUPos, TInt aPos,TInt aDrive, CFsPluginFactory* aPluginFactory);
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static CFsPlugin* FindByUniquePosition(TInt aPos);
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static TInt InitPlugin(CFsPlugin& aPlugin);
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static void TransferRequests(CPluginThread* aPluginThread);
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static void CancelPlugin(CFsPlugin* aPlugin,CSessionFs* aSession);
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static TInt ChainCount();
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static TInt Plugin(CFsPlugin*& aPlugin, TInt aPos);
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static void LockChain();
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static void UnlockChain();
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static CFsPluginConn* CreatePluginConnL(TInt aUniquePosition, TUint aClientId);
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static CFsPluginConn* GetPluginConnFromHandle(CSessionFs* aSession, TInt aHandle);
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static TBool IsPluginConnThread(TThreadId tid, CFsPlugin* aPlugin);
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static void DispatchSync(CFsRequest* aRequest);
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static void CompleteSessionRequests(CSessionFs* aSession, TInt aValue, CFsInternalRequest* aRequest);
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private:
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static TInt UpdateMountedDrive(CFsPlugin* aPlugin, CFsPluginFactory* aFactory,TInt aDrive);
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static void GetNextCancelPluginOpRequest(CPluginThread* aPluginThread, CFsRequest*& aCancelPluginRequest);
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private:
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static CFsObjectCon* iPluginFactories;
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static CFsObjectCon* iPluginConns;
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static RPointerArray<CFsPlugin> iPluginChain;
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static RFastLock iChainLock;
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static CFsSyncMessageScheduler* iScheduler;
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friend class RequestAllocator;
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};
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#endif // __SF_PLUGIN_H
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