loggingservices/eventlogger/LogServ/src/LogServPanic.cpp
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     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 //
       
    15 
       
    16 #include "logservpanic.h"
       
    17 #include "LogServSqlStrings.h"
       
    18 
       
    19 //
       
    20 // RMessage::Panic() also completes the message. This is:
       
    21 // (a) important for efficient cleanup within the kernel
       
    22 // (b) a problem if the message is completed a second time
       
    23 //
       
    24 void PanicClientL(const RMessage2& aMessage, TLogServPanic aPanic)
       
    25 	{
       
    26 	aMessage.Panic(KLogServ, aPanic);
       
    27 	User::Leave(KLogPanicLeave);
       
    28 	}
       
    29 
       
    30 void PanicClient(const RMessage2& aMessage, TLogServPanic aPanic)
       
    31 	{
       
    32 	aMessage.Panic(KLogServ, aPanic);
       
    33 	}
       
    34 
       
    35 #pragma BullseyeCoverage off
       
    36 
       
    37 void Panic(TLogServPanic aPanic)
       
    38 	{
       
    39 	User::Panic(KLogServ, aPanic);
       
    40 	}
       
    41 
       
    42 #pragma BullseyeCoverage on
       
    43 
       
    44 #ifdef LOGGING_ENABLED
       
    45 
       
    46 const TInt KLogEngLogBufferSize = 256;
       
    47 
       
    48 void Log::New()
       
    49 	{
       
    50 	_LIT(KNewLogText, "===== NEW LOG =====");
       
    51 	//
       
    52 	RFileLogger logger;
       
    53 	TInt ret=logger.Connect();
       
    54 	if	(ret==KErrNone)
       
    55 		{
       
    56 		logger.CreateLog(KLogFolder, KLogFileName, EFileLoggingModeOverwrite);
       
    57 		logger.Write(KNewLogText);
       
    58 		}
       
    59 	logger.Close();
       
    60 	}
       
    61 
       
    62 void Log::Write(const TDesC& aText)
       
    63 	{
       
    64 	PruneLogFile();
       
    65 
       
    66 	RFileLogger logger;
       
    67 	TInt ret=logger.Connect();
       
    68 	if (ret==KErrNone)
       
    69 		{
       
    70 		logger.SetDateAndTime(EFalse,EFalse);
       
    71 		logger.CreateLog(KLogFolder, KLogFileName,EFileLoggingModeAppend);
       
    72 		TBuf<KLogEngLogBufferSize> buf;
       
    73 		
       
    74 		// The debug log uses hometime rather than UTC for its timestamps. This is
       
    75 		// purely a debugging aid.
       
    76 		TTime now;
       
    77 		now.HomeTime();
       
    78 		TDateTime dateTime;
       
    79 		dateTime = now.DateTime();
       
    80 		buf.Format(KTimeFormat,dateTime.Hour(),dateTime.Minute(),dateTime.Second(),dateTime.MicroSecond());
       
    81 		buf.AppendFormat(KTextFormat,&aText);
       
    82 
       
    83 		logger.Write(buf);
       
    84 		}
       
    85 
       
    86 	logger.Close();
       
    87 	}
       
    88 
       
    89 void Log::WriteFormat(TRefByValue<const TDesC> aFmt,...)
       
    90 	{
       
    91     VA_LIST list;
       
    92     VA_START(list,aFmt);
       
    93 
       
    94 	PruneLogFile();
       
    95 
       
    96 	TBuf<2*KLogEngLogBufferSize> buf;
       
    97 	buf.SetMax();
       
    98 	buf.FillZ();
       
    99 	
       
   100 	// The debug log uses hometime rather than UTC for its timestamps. This is
       
   101 	// purely a debugging aid.
       
   102 	TTime now;
       
   103 	now.HomeTime();
       
   104 	TDateTime dateTime;
       
   105 	dateTime = now.DateTime();
       
   106 	buf.Format(KTimeFormat,dateTime.Hour(),dateTime.Minute(),dateTime.Second(),dateTime.MicroSecond());
       
   107 	buf.AppendFormatList(aFmt, list );
       
   108 
       
   109 	RFileLogger logger;
       
   110 	TInt ret=logger.Connect();
       
   111 	if (ret==KErrNone)
       
   112 		{
       
   113 		logger.SetDateAndTime(EFalse,EFalse);
       
   114 		logger.CreateLog(KLogFolder, KLogFileName,EFileLoggingModeAppend);
       
   115 		logger.Write(buf);
       
   116 		}
       
   117 
       
   118 	logger.Close();
       
   119 
       
   120 	}
       
   121 
       
   122 void Log::PruneLogFile()
       
   123 	{
       
   124 	const TInt KMaxLogSize = 1024 * 500;
       
   125 	//
       
   126 	_LIT(KBaseFolder, "_:\\Logs\\");
       
   127 	TFileName fileName(KBaseFolder);
       
   128 	fileName[0] = 'A' + static_cast<TInt>(RFs::GetSystemDrive());
       
   129 	fileName.Append(KLogFolder);
       
   130 	fileName.Append(KPathDelimiter);
       
   131 	fileName.Append(KLogFileName);
       
   132 	//
       
   133 	RFs fsSession;
       
   134 	if	(fsSession.Connect() == KErrNone)
       
   135 		{
       
   136 		TEntry entry;
       
   137 		if	(fsSession.Entry(fileName, entry) == KErrNone)
       
   138 			{
       
   139 			// Check size and delete if its too big
       
   140 			if	(entry.iSize >= KMaxLogSize)
       
   141 				{
       
   142 				TInt fileDeleteErr=fsSession.Delete(fileName);
       
   143 				// If a debug build - record error
       
   144 				#ifdef _DEBUG
       
   145 				if (fileDeleteErr != KErrNone)
       
   146 					{
       
   147 					RDebug::Print(_L("Log::PruneLogFile - Failed to delete file. Error = %d"), fileDeleteErr);
       
   148 					}
       
   149 				#else
       
   150 					(void)fileDeleteErr;
       
   151 				#endif
       
   152 				}
       
   153 			}
       
   154 		}
       
   155 	fsSession.Close();
       
   156 	}
       
   157 
       
   158 #endif