Symaptic: os/mm/mmlibs/mmfw/inc/mmf/server/mmfsubthreadbaseimpl.h@260cb5ec6c19

     1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    16 #ifndef __MMFSUBTHREADBASE_IMPL_H__

    17 #define __MMFSUBTHREADBASE_IMPL_H__

    19 #include <e32base.h>

    20 #include <e32std.h>

    21 #include <mmf/common/mmfpaniccodes.h>

    22 #include <mmf/common/mmfcontroller.h>

    23 #ifdef SYMBIAN_ENABLE_SPLIT_HEADERS

    24 #include <mmf/common/mmfipcserver.h>

    25 #endif

    28 /**

    29 @internalTechnology

    31 Used to Kill the subthread either immediately or after a timeout.

    32 Used by the subthread on startup to prevent orphaning if no sessions are created to it.

    33 */

    34 class CMMFSubThreadShutdown : public CTimer

    35 	{

    36 	enum {EMMFSubThreadShutdownDelay=1000000};	// 1s

    37 public:

    38 	static CMMFSubThreadShutdown* NewL();

    39 	CMMFSubThreadShutdown();

    40 	void ConstructL();

    41 	void Start();

    42 	void ShutdownNow();

    43 private:

    44 	void RunL();

    45 	};

    47 /**

    48 @internalTechnology

    50 Subthread server base class.

    51 Provides session counting and will kill the subthread immediately when the session count reaches zero.

    52 Starts the shutdown timer on construction to prevent orphaning if no sessions are created.

    53 */

    54 class CMMFSubThreadServer : public CMmfIpcServer

    55 	{

    56 public:

    57 	virtual ~CMMFSubThreadServer();

    58 	virtual void SessionCreated();

    59 	virtual TInt RunError(TInt aError);

    60 	virtual void ShutdownNow();

    61 protected:

    62 	virtual CMmfIpcSession* NewSessionL(const TVersion& aVersion) const = 0;

    63 	CMMFSubThreadServer(TInt aPriority);

    64 	void ConstructL();

    65 private:

    66 	CMMFSubThreadShutdown* iShutdownTimer;

    67 	};

    69 /**

    70 @internalTechnology

    72 Used to hold on to an RMessage so we can complete it asynchronously to send an event to the main thread.

    73 */

    74 class CMMFSubThreadEventReceiver : public CBase

    75 	{

    76 public:

    77 	static CMMFSubThreadEventReceiver* NewL(const RMmfIpcMessage& aMessage);

    78 	~CMMFSubThreadEventReceiver();

    79 	void SendEvent(const TMMFEvent& aEvent);

    80 private:

    81 	CMMFSubThreadEventReceiver(const RMmfIpcMessage& aMessage);

    82 private:

    83 	RMmfIpcMessage iMessage;

    84 	TBool iNeedToCompleteMessage;

    85 	};

    87 /**

    88 @internalTechnology

    90 Subthread session base class.

    91 Derived classes must implement the ServiceL() method.

    92 */

    93 class CMMFSubThreadSession : public CMmfIpcSession, public MAsyncEventHandler

    94 	{

    95 public:

    96 	virtual ~CMMFSubThreadSession();

    97 	void CreateL(const CMmfIpcServer& aServer);

    98 	virtual void ServiceL(const RMmfIpcMessage& aMessage) = 0;

    99 	//from MAsyncEventHandler

   100 	TInt SendEventToClient(const TMMFEvent& aEvent);

   101 protected:

   102 	CMMFSubThreadSession() {};

   103 	TBool ReceiveEventsL(const RMmfIpcMessage& aMessage);

   104 	TBool CancelReceiveEvents();

   105 	TBool ShutDown();

   106 protected:

   107 	CMMFSubThreadServer* iServer;

   108 private:

   109 	CMMFSubThreadEventReceiver* iEventReceiver;

   110 	RArray<TMMFEvent> iEvents;

   111 	};

   115 #endif

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--