1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/genericopenlibs/openenvcore/backend/inc/ReadRequestHandler.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,90 @@
     1.4 +/*
     1.5 +* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description:
    1.18 +* Name        : readrequesthandler.h
    1.19 +* Part of     : stdio server
    1.20 +* To handle request for read
    1.21 +* 
    1.22 +*
    1.23 +*/
    1.24 +
    1.25 +
    1.26 + 
    1.27 +
    1.28 +
    1.29 +#ifndef _READREQUEST_H_
    1.30 +#define _READREQUEST_H_
    1.31 +
    1.32 +#include<e32base.h>//CActive
    1.33 +
    1.34 +//Enumarations for Polling
    1.35 +//duplicate of fdesc.h
    1.36 +enum TPollMode
    1.37 +    {
    1.38 +    EReadyForReading = 1,
    1.39 +    EReadyForWriting = 2,
    1.40 +    EAnyException = 4
    1.41 +    };
    1.42 +
    1.43 +class CStreamBase;
    1.44 +	
    1.45 +//-----------------------------------------------------------------------
    1.46 +//Class name: 	TReadRequest
    1.47 +//Description: 	Request object created for every read request from a
    1.48 +//				client. These are queued as a singly linked list.
    1.49 +//-----------------------------------------------------------------------
    1.50 +
    1.51 +class TReadRequest
    1.52 +	{
    1.53 +public:
    1.54 +	inline TReadRequest(const RMessage2&);
    1.55 +	const RMessage2 iMessage2;
    1.56 +	
    1.57 +	TSglQueLink   iLink;
    1.58 +	};
    1.59 +
    1.60 +
    1.61 +
    1.62 +//-----------------------------------------------------------------------
    1.63 +//Class name: 	CReadRequestHandler
    1.64 +//Description: 	Request Handler class created for Read media. This 
    1.65 +//				Class is an active object and will handle all read
    1.66 +//				requests in the form of RReadRequest objects.
    1.67 +//-----------------------------------------------------------------------
    1.68 +
    1.69 +class CReadRequestHandler : public CActive
    1.70 +	{
    1.71 +public:
    1.72 +	static CReadRequestHandler* NewL(CStreamBase* aConsoleRead);
    1.73 +	~CReadRequestHandler();
    1.74 +	void RunL();
    1.75 +	void ServiceL(const RMessage2& aMessage2);
    1.76 +	void NotifyActivityL(const RMessage2& aMessage2);
    1.77 +	void CancelNotify();
    1.78 +	void DoCancel();
    1.79 +	
    1.80 +private:
    1.81 +	CReadRequestHandler();
    1.82 +	CReadRequestHandler(CStreamBase* aConsoleRead);
    1.83 +	void Complete(const RMessage2 &aMessage);
    1.84 +	TSglQue<TReadRequest> iQueue; 
    1.85 +	CStreamBase* iReadStream;
    1.86 +	TInt iNotifyHandle;
    1.87 +	TPtr8 iPtr;
    1.88 +	};
    1.89 +	
    1.90 +#endif //_READREQUEST_H_
    1.91 +	 
    1.92 +
    1.93 +