1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/mmlibs/mmfw/inc/mmf/server/mmfsubthreadbaseimpl.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,116 @@
     1.4 +// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +#ifndef __MMFSUBTHREADBASE_IMPL_H__
    1.20 +#define __MMFSUBTHREADBASE_IMPL_H__
    1.21 +
    1.22 +#include <e32base.h>
    1.23 +#include <e32std.h>
    1.24 +#include <mmf/common/mmfpaniccodes.h>
    1.25 +#include <mmf/common/mmfcontroller.h>
    1.26 +#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
    1.27 +#include <mmf/common/mmfipcserver.h>
    1.28 +#endif
    1.29 +
    1.30 +
    1.31 +/**
    1.32 +@internalTechnology
    1.33 +
    1.34 +Used to Kill the subthread either immediately or after a timeout.
    1.35 +Used by the subthread on startup to prevent orphaning if no sessions are created to it.
    1.36 +*/
    1.37 +class CMMFSubThreadShutdown : public CTimer
    1.38 +	{
    1.39 +	enum {EMMFSubThreadShutdownDelay=1000000};	// 1s
    1.40 +public:
    1.41 +	static CMMFSubThreadShutdown* NewL();
    1.42 +	CMMFSubThreadShutdown();
    1.43 +	void ConstructL();
    1.44 +	void Start();
    1.45 +	void ShutdownNow();
    1.46 +private:
    1.47 +	void RunL();
    1.48 +	};
    1.49 +
    1.50 +/**
    1.51 +@internalTechnology
    1.52 +
    1.53 +Subthread server base class.
    1.54 +Provides session counting and will kill the subthread immediately when the session count reaches zero.
    1.55 +Starts the shutdown timer on construction to prevent orphaning if no sessions are created.
    1.56 +*/
    1.57 +class CMMFSubThreadServer : public CMmfIpcServer
    1.58 +	{
    1.59 +public:
    1.60 +	virtual ~CMMFSubThreadServer();
    1.61 +	virtual void SessionCreated();
    1.62 +	virtual TInt RunError(TInt aError);
    1.63 +	virtual void ShutdownNow();
    1.64 +protected:
    1.65 +	virtual CMmfIpcSession* NewSessionL(const TVersion& aVersion) const = 0;
    1.66 +	CMMFSubThreadServer(TInt aPriority);
    1.67 +	void ConstructL();
    1.68 +private:
    1.69 +	CMMFSubThreadShutdown* iShutdownTimer;
    1.70 +	};
    1.71 +
    1.72 +/**
    1.73 +@internalTechnology
    1.74 +
    1.75 +Used to hold on to an RMessage so we can complete it asynchronously to send an event to the main thread.
    1.76 +*/
    1.77 +class CMMFSubThreadEventReceiver : public CBase
    1.78 +	{
    1.79 +public:
    1.80 +	static CMMFSubThreadEventReceiver* NewL(const RMmfIpcMessage& aMessage);
    1.81 +	~CMMFSubThreadEventReceiver();
    1.82 +	void SendEvent(const TMMFEvent& aEvent);
    1.83 +private:
    1.84 +	CMMFSubThreadEventReceiver(const RMmfIpcMessage& aMessage);
    1.85 +private:
    1.86 +	RMmfIpcMessage iMessage;
    1.87 +	TBool iNeedToCompleteMessage;
    1.88 +	};
    1.89 +
    1.90 +/**
    1.91 +@internalTechnology
    1.92 +
    1.93 +Subthread session base class.
    1.94 +Derived classes must implement the ServiceL() method.
    1.95 +*/
    1.96 +class CMMFSubThreadSession : public CMmfIpcSession, public MAsyncEventHandler
    1.97 +	{
    1.98 +public:
    1.99 +	virtual ~CMMFSubThreadSession();
   1.100 +	void CreateL(const CMmfIpcServer& aServer);
   1.101 +	virtual void ServiceL(const RMmfIpcMessage& aMessage) = 0;
   1.102 +	//from MAsyncEventHandler
   1.103 +	TInt SendEventToClient(const TMMFEvent& aEvent);
   1.104 +protected:
   1.105 +	CMMFSubThreadSession() {};
   1.106 +	TBool ReceiveEventsL(const RMmfIpcMessage& aMessage);
   1.107 +	TBool CancelReceiveEvents();
   1.108 +	TBool ShutDown();
   1.109 +protected:
   1.110 +	CMMFSubThreadServer* iServer;
   1.111 +private:
   1.112 +	CMMFSubThreadEventReceiver* iEventReceiver;
   1.113 +	RArray<TMMFEvent> iEvents;
   1.114 +	};
   1.115 +
   1.116 +
   1.117 +
   1.118 +#endif
   1.119 +