/*

* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#ifndef CDLSERVER_H

#define CDLSERVER_H

// CDL server classes

#include <e32base.h>

#include "CdlClientServer.h"

#include "CdlClientServerStd.h"

#include "CdlRefs.h"

#include "CdlDllWatcher.h"

class TDriveUnit;

enum TCdlPanic

	{

	// client panics

	EPanicBadDescriptor,

	EPanicIllegalFunction,

	EPanicNotifyActive,

	EPanicNoCustomisationRequested,

	EPanicBufRequestedWithoutSetup,

	EPanicParamOutOfRange,

	// server panics

	EServerPanicBase = 100,

	EPanicTDllListOpEqNullCurrent,

	EPanicTDllListOpLtNullCurrent,

	EPanicTDllListCurrentNullCurrent,

	EPanicTDllListNextNullCurrent,

	EPanicTDllListNextNullDirs,

	};

void PanicClient(const RMessagePtr2& aMessage,TCdlPanic TCdlPanic);

void Panic(TCdlPanic TCdlPanic);

/**

* Timer used to shut down the server after 2 seconds with no clients.

*/

class CShutdown : public CTimer

	{

	enum {KCdlShutdownDelay=2000000};	// 2 seconds

public:

	CShutdown();

	void ConstructL();

	void Start();

private:

	void RunL();

	};

/**

* The CDL server.

* This maintains a watch on the available CDL DLLs. It also maintains the total global

* customisation state.

*/

class CCdlServer : public CServer2, MCdlDllsObserver

	{

public:

	static CServer2* NewLC();

	~CCdlServer();

	void AddSession();

	void DropSession();

	CCdlRefs* GetStateLC(const CCdlUids& aUids) const;

	void SetStateL(CCdlRefs* aState);

	const CCdlRefs& AllRefs() const;

	inline CCdlRefCollection* FileContentsLC(const TDesC& aFileName) { return iDllWatcher->FileContentsLC(aFileName); }

	TInt IsPluginInRom(const TDesC& aFileName, TBool& aIsInRom);

	TInt PluginDrive(const TDesC& aFileName, TDriveUnit& aDrive);

private:

	CCdlServer();

	void ConstructL();

	CSession2* NewSessionL(const TVersion& aVersion,const RMessage2& aMessage) const;

	TInt RunError(TInt aError);

private: // from MCdlDllsObserver

	void McdoPrepareForChangesL();

	void McdoFileAddedL(const TDesC& aFile);

	void McdoFileRemovedL(const TDesC& aFile);

	void McdoChangesCompleteL();

private:

	TInt iSessionCount;

	// All the following are owned

	CShutdown iShutdown;

	CCdlEngineRef* iEngRef;

	CCdlRefs* iState;

	RFs iFs;

	CCdlDllsWatcherBase* iDllWatcher;

	CCdlRefs* iAllRefs;

	};

/**

* The CDL server's client session.

* This maintains a list of the UIDs that the client is interested in.

* Changes in available customisations and in the relevant global customisation state

* are sent to the client.

*/

class CCdlSession : public CSession2

	{

public:

	CCdlSession();

	void CreateL();

	void HandleCustChangeL(const CCdlUids& aUids);

	void HandleRefsChangeL();

private:

	~CCdlSession();

	CCdlServer& Server();

	void ServiceL(const RMessage2& aMessage);

	void RequestGetCustL(const RMessage2& aMessage);

	void GetCustL(const RMessage2& aMessage);

	void SetUidsToNotifyL(const RMessage2& aMessage);

	void NotifyChangeL(const RMessage2& aMessage);

	void CancelNotifyChangeL(const RMessage2& aMessage);

	void SetCustL(const RMessage2& aMessage);

	void GetRefsSizeL(const RMessage2& aMessage);

	void GetAllRefsSizeL(const RMessage2& aMessage);

	void GetNamesSizeL(const RMessage2& aMessage);

	void GetTempBufL(const RMessage2& aMessage);

	void IsPluginInRomL(const RMessage2& aMessage);

	void PluginDriveL(const RMessage2& aMessage);

	TBool NotifyPending() const;

	void NotifyCustChangeL();

	void WriteAndComplete(const RMessagePtr2& aMessage, TInt aParam, const TDesC8& aDes, TInt aCode = KErrNone);

	TInt ValidIntL(TInt aVal, TInt aMin, TInt aMax) const;

private:

	RMessagePtr2 iNotify;

	HBufC8* iSendingBuf;		//owned

	CCdlRefs* iSendingState;	//owned

	CCdlUids iUids;

	TBool iQueuedCustChange;	// is there a global customisation change waiting to be sent to the client?

	TBool iQueuedRefsChange;	// is there a refs list change waiting to be sent to the client?

	HBufC8* iTempBuf;			//owned

	};

#endif