locationtriggering/ltserver/ltserverlogic/src/lbtglobal.cpp
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     1 /*
       
     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Global services for LBT server logic
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include <lbterrors.h>
       
    21 #include "lbtglobal.h"
       
    22 #include "lbtlogger.h"
       
    23 
       
    24 // ================= LOCAL FUNCTIONS =======================
       
    25 
       
    26 TInt DataSizeL(
       
    27     const RMessage2& aMessage, 
       
    28     const TInt aClientBufferParam)
       
    29     {
       
    30     FUNC_ENTER("LbtGlobal::DataSizeL");
       
    31     TInt dataSize = aMessage.GetDesLength(aClientBufferParam);
       
    32     if (dataSize < 0)
       
    33         {
       
    34         User::Leave(KErrBadDescriptor);
       
    35         }
       
    36     return dataSize;
       
    37     }
       
    38 
       
    39 // ================= MEMBER FUNCTIONS =======================
       
    40 
       
    41 
       
    42 // ---------------------------------------------------------
       
    43 // LbtGlobal::Write
       
    44 // ---------------------------------------------------------
       
    45 //
       
    46 TInt LbtGlobal::Write(const RMessage2& aMessage,
       
    47                	      const TInt aParam,
       
    48                	      const TDesC8& aDes,
       
    49                	      TInt aOffset)
       
    50 	{
       
    51 	FUNC_ENTER("LbtGlobal::Write");
       
    52 	TInt ret = aMessage.Write(aParam, aDes, aOffset);
       
    53 	if (ret != KErrNone)
       
    54         {
       
    55         aMessage.Panic(KLbtClientPanicCategory, KErrBadDescriptor);
       
    56         }
       
    57     return ret;
       
    58 	}
       
    59 
       
    60 // ---------------------------------------------------------
       
    61 // LbtGlobal::Read
       
    62 // ---------------------------------------------------------
       
    63 //
       
    64 TInt LbtGlobal::Read(const RMessage2& aMessage,
       
    65 	                 const TInt aParam,
       
    66 	                 TDes8& aDes,
       
    67 	                 TInt aOffset)
       
    68     {
       
    69     FUNC_ENTER("LbtGlobal::Read");
       
    70 	TInt ret = aMessage.Read(aParam, aDes, aOffset);
       
    71     if (ret != KErrNone)
       
    72         {
       
    73         aMessage.Panic(KLbtClientPanicCategory, KErrBadDescriptor);
       
    74         }
       
    75     return ret;
       
    76     }
       
    77 
       
    78 // ---------------------------------------------------------
       
    79 // LbtGlobal::RequestComplete
       
    80 // ---------------------------------------------------------
       
    81 //
       
    82 void LbtGlobal::RequestComplete(const RMessage2& aMessage, TInt aError)
       
    83 	{
       
    84 	FUNC_ENTER("LbtGlobal::RequestComplete");	
       
    85 	if(!aMessage.IsNull())	
       
    86 		{
       
    87 		// Complete the IPC message only if it is a valid message.
       
    88 		aMessage.Complete(aError);
       
    89 		}
       
    90 	}
       
    91 
       
    92 // ---------------------------------------------------------
       
    93 // LbtGlobal::CopyClientBuffer8LC
       
    94 // ---------------------------------------------------------
       
    95 //
       
    96 HBufC8* LbtGlobal::CopyClientBuffer8LC( const RMessage2& aMessage, 
       
    97 									    const TInt aClientBufferParam)
       
    98     {
       
    99     FUNC_ENTER("LbtGlobal::CopyClientBuffer8LC");
       
   100     
       
   101     if( aMessage.IsNull() )	
       
   102 		{
       
   103 		return NULL;
       
   104 		}
       
   105 
       
   106     // Create an empty server side buffer that will contain client data
       
   107     TInt dataSize = DataSizeL(aMessage, aClientBufferParam);
       
   108     HBufC8* buffer = HBufC8::NewLC(dataSize);
       
   109 
       
   110     // Populate server side buffer with client data
       
   111     TPtr8 ptrToBuf = buffer->Des();
       
   112     TInt retVal = LbtGlobal::Read(aMessage, aClientBufferParam, ptrToBuf);
       
   113     if(retVal != KErrNone)
       
   114     	{
       
   115     	User::Leave(KErrBadDescriptor);
       
   116     	}
       
   117     return buffer;
       
   118     }
       
   119 
       
   120 // end of file