epoc32/include/comms-infras/metabuffer.h
author William Roberts <williamr@symbian.org>
Tue, 16 Mar 2010 16:12:26 +0000
branchSymbian2
changeset 2 2fe1408b6811
permissions -rw-r--r--
Final list of Symbian^2 public API header files
     1 // Copyright (c) 2004-2009 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 the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
     5 // which accompanies this distribution, and is available
     6 // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
     7 //
     8 // Initial Contributors:
     9 // Nokia Corporation - initial contribution.
    10 //
    11 // Contributors:
    12 //
    13 // Description:
    14 // MetaBuffer.h
    15 // 
    16 //
    17 
    18 
    19 
    20 /**
    21  @file MetaBuffer.h
    22  @internalTechnology
    23 */
    24 
    25 #if (!defined METABUFFER_H)
    26 #define METABUFFER_H
    27 
    28 #include <comms-infras/metatypevariablelen.h>
    29 
    30 namespace Meta
    31 {
    32 
    33 class TMetaBuf8 : public TMetaVarLen8<RBuf8>
    34 /**
    35 
    36 Implementation of MMetaType for dynamicaly allocated RBuf8
    37 
    38 @internalComponent
    39 @released since v9.0
    40 */
    41 	{
    42 public:
    43 	inline static MMetaType* NewL(const TAny* aMem, const TAny* aData);
    44 
    45 	IMPORT_C virtual TInt Load(TPtrC8& aBuffer);
    46 	IMPORT_C virtual TInt Store(TDes8& aBuffer) const;
    47 	IMPORT_C virtual void Copy(const TAny* aData);
    48 	IMPORT_C virtual TInt Length() const;
    49 
    50 protected:
    51 	TMetaBuf8(const TAny* aData) :
    52 		TMetaVarLen8<RBuf8>( aData )
    53 		{
    54 		}
    55 	};
    56 
    57 class TMetaBuf16 : public TMetaVarLen16<RBuf16>
    58 /**
    59 
    60 Implementation of MMetaType for dynamicaly allocated RBuf16
    61 
    62 @internalComponent
    63 @released since v9.0
    64 */
    65 	{
    66 public:
    67 	inline static MMetaType* NewL(const TAny* aMem, const TAny* aData);
    68 
    69 	IMPORT_C virtual TInt Load(TPtrC8& aBuffer);
    70 	IMPORT_C virtual TInt Store(TDes8& aBuffer) const;
    71 	IMPORT_C virtual void Copy(const TAny* aData);
    72 	IMPORT_C virtual TInt Length() const;
    73 
    74 protected:
    75 	TMetaBuf16(const TAny* aData) :
    76 		TMetaVarLen16<RBuf16>( aData )
    77 		{
    78 		}
    79 
    80 	};
    81 
    82 MMetaType* TMetaBuf8::NewL(const TAny* aMem, const TAny* aData)
    83 /**
    84  * Instantiates a meta type for RBuf8.
    85  * Used for attribure registration (in the data v-table).
    86  */
    87     {
    88     return ::new ((TUint8*)aMem) TMetaBuf8(aData);
    89     }
    90 
    91 MMetaType* TMetaBuf16::NewL(const TAny* aMem, const TAny* aData)
    92 /**
    93  * Instantiates a meta type for RBuf8.
    94  * Used for attribure registration (in the data v-table).
    95  */
    96     {
    97     return ::new ((TUint8*)aMem) TMetaBuf16(aData);
    98     }
    99 
   100 
   101 #if defined(_UNICODE)
   102 typedef TMetaBuf16 TMetaBuf;
   103 #else
   104 typedef TMetaBuf8 TMetaBuf;
   105 #endif
   106 } //namespace Meta
   107 
   108 
   109 #endif //METABUFFER_H