1 // Copyright (c) 2003-2009 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 // include\mmf\common\mmfipc.h

    15 // Thin interface layer to use either V1 or V2 IPC calls as appropriate

    16 // 

    17 //

    18 

    19 #ifndef __MMF_COMMON_MMFIPC_SERVER_H__

    20 #define __MMF_COMMON_MMFIPC_SERVER_H__

    21 

    22 #include <e32base.h>

    23 #ifdef SYMBIAN_ENABLE_SPLIT_HEADERS

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

    25 #endif

    26 

    27 // The following declarations are used instead of the native ones on the particular system variant:

    28 //    RMmfIpcMessage replaces RMessage or RMessage2

    29 //    CMmfIpcServer replaces CServer or CServer2

    30 //    CMmfIpcSession replaces CSharableSession or CSession2

    31 // They are used internally to the MMF component to provide configurability for the particular subsystem

    32 

    33 #ifdef __MMF_USE_IPC_V2__

    34 

    35 //typedef RMessage2 RMmfIpcMessage;

    36 

    37 class CMmfIpcServer; // forward declaration

    38 

    39 /**

    40  * derive CMmfIpcSession from CSession2 so we can bridge the differences to old CSharableSession

    41  *

    42  * @internalTechnology

    43  */

    44  

    45 class CMmfIpcSession : public CSession2

    46 	{

    47 protected:

    48 	virtual void CreateL(const CMmfIpcServer& aServer);

    49 	CMmfIpcSession() {}

    50 	// from CSession2

    51 	void CreateL();

    52 	};

    53 

    54 /*

    55  * derive CMmfIpcServer from CServer2 so we can bridge difference to old CServer

    56  *

    57  * @internalTechnology

    58  */

    59  

    60 class CMmfIpcServer : public CServer2

    61 	{

    62 protected:

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

    64 	CMmfIpcServer(TInt aPriority,TServerType aType=EUnsharableSessions);

    65 private:

    66 	// derived from CServer2

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

    68 	};

    69 

    70 #else // __MMF_USE_IPC_V2__

    71 

    72 // otherwise always use V1

    73 //typedef RMessage RMmfIpcMessage;

    74 typedef CServer CMmfIpcServer;

    75 typedef CSharableSession CMmfIpcSession;

    76 

    77 #endif // __MMF_USE_IPC_V2__

    78 

    79 #if defined(__VC32__)

    80 #pragma warning( disable : 4097 )	// typedef-name used as synonym for class-name 

    81 #endif

    82 

    83 

    84 /**

    85  * Adapt RMessage calls between IPC variants

    86  *

    87  * @internalTechnology

    88  */

    89 

    90 class MmfMessageUtil 

    91 	{

    92 public:

    93 	static TInt Read(const RMmfIpcMessage& aMessage, TInt aParam, TDes8& aResult);

    94 	static TInt Write(const RMmfIpcMessage& aMessage, TInt aParam, const TDesC8& aValue);

    95 	static void ReadL(const RMmfIpcMessage& aMessage, TInt aParam, TDes8& aResult);

    96 	static void WriteL(const RMmfIpcMessage& aMessage, TInt aParam, const TDesC8& aValue);

    97 	};

    98 	

    99 #include <mmf/common/mmfipcserver.inl>

   100 

   101 #endif // __MMF_COMMON_MMFIPC_SERVER_H__