1 /*

     2 * Copyright (c) 2009 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:       

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 

    22 

    23 

    24 //

    25 // just for simple use,

    26 // this file doesn't following any code convensions or symbian rules.

    27 //

    28 

    29 #ifndef __DLL_LOGGER_H__

    30 #define __DLL_LOGGER_H__

    31 

    32 #include <f32file.h>  // link against efsrv.lib

    33 #include <eikenv.h>

    34 

    35 #define CERR    StreamLogger::begin()

    36 

    37 /**

    38 * usage: StreamLogger::begin()<<"your string"<<yourNumber<<...<<end;

    39 */

    40 class StreamLogger{

    41 

    42     //

    43     // internel class

    44     // use RAII instead of symbian 2 phases contruction.

    45     //

    46     class LogFile{

    47     public:

    48         LogFile()

    49         {

    50             _LIT( KLogFile, "C:\\debug.log" );

    51             RFs& fs = CEikonEnv::Static()->FsSession();

    52             if ( file.Open( fs, KLogFile, EFileWrite | EFileShareAny ) != KErrNone )

    53                 file.Create( fs, KLogFile, EFileWrite | EFileShareAny );

    54 

    55             TInt pos=0;  // this must be 0

    56             file.Seek( ESeekEnd, pos );

    57         }

    58 

    59         ~LogFile(){

    60             file.Close();

    61         }

    62 

    63         RFile& operator()(){ return file; }

    64     private:

    65         RFile file;

    66     };

    67 

    68 public:

    69     ~StreamLogger(){}

    70 

    71     static StreamLogger& begin(){

    72         StreamLogger* self = new (ELeave) StreamLogger;

    73         return *self;

    74     }

    75 

    76     void suicide(){ delete this; }

    77 

    78     StreamLogger& operator<<(const TDesC& aText){

    79         LogFile file;

    80 

    81         HBufC8* text = HBufC8::NewL( aText.Length() );

    82         TPtr8 textPtr = text->Des();

    83         textPtr.Copy( aText );

    84         file().Write( *text );

    85         delete text;

    86 

    87         return *this;

    88     }

    89 

    90     StreamLogger& operator<<(TInt n){

    91         LogFile file;

    92 

    93         TInt i=1;

    94         for(TInt v=n; v!=0; ++i, v/=10){}

    95         HBufC* text = HBufC::NewL( i );

    96         TPtr textPtr = text->Des();

    97 

    98         _LIT(KFmt, "%d");

    99         textPtr.Format( KFmt, n );

   100         HBufC8*  text8 = HBufC8::NewL( textPtr.Length() );

   101         TPtr8 textPtr8 = text8->Des();

   102         textPtr8.Copy(*text);

   103 

   104         file().Write( *text8 );

   105         delete text;

   106         delete text8;

   107 

   108         return *this;

   109     }

   110 

   111     StreamLogger& cr(){

   112         LogFile file;

   113         TBuf8<2> enter;

   114         enter.Append( 13 );

   115         enter.Append( 10 );

   116         file().Write( enter );

   117         return *this;

   118     }

   119 

   120     typedef StreamLogger& (*_Manipulator)(StreamLogger&);

   121     StreamLogger& operator<<(_Manipulator op){ return op(*this); }

   122 

   123 private:

   124     StreamLogger(){}    //disable ctor

   125 };

   126 

   127 inline StreamLogger& end(StreamLogger& self){ self.suicide(); return self; }

   128 

   129 inline StreamLogger& endl(StreamLogger& self){ self.cr(); return self; }

   130 

   131 #endif //__FILE_LOGGER_H__