diff -r 000000000000 -r 307788aac0a8 rtp/rtpstack/src/rtputil.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rtp/rtpstack/src/rtputil.cpp	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,371 @@
+/*
+* Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:   
+*
+*/
+
+
+
+
+// INCLUDE FILES
+#include <e32math.h>
+#include <e32hal.h>
+#include "rtputil.h"
+
+// ================= MEMBER FUNCTIONS =======================
+
+// ---------------------------------------------------------------------------
+// Parameters:
+//  x   16-LSB of a positive integer
+//  y   16-LSB of a positive integer  
+//
+// Function: The function is taking care of wrap. If the distance
+//           these two number is longer than 1 << 15, then we assume
+//           the larger one is the min16 of these two numbers.
+//           
+// Returns:
+//    the min of the two input values 
+// ---------------------------------------------------------------------------
+TUint16 TRtpUtil::Min16( TUint16 aX, TUint16 aY )
+    {
+    if ( ( aX <= aY && aX > aY - ( 1 << 15 ) ) || ( aX >= aY + ( 1 << 15 ) ) )
+        {
+        return aX;
+        }
+    else
+       {
+        return aY;
+       }
+    }
+
+// ---------------------------------------------------------------------------
+// Parameters:
+//  x   16-bit unsigned int 
+//  y   16-bit unsigned int   
+//
+// Function: if the distance between aX and aY is longer than 1 << 15,
+//           we assume these two number are wrapped.
+// Returns:
+//    1 if there is wrap around between this two values 
+// ---------------------------------------------------------------------------
+TUint16 TRtpUtil::Wrap16( TUint16 aX, TUint16 aY )
+    {
+    if ( aX < aY - ( 1 << 15 ) || aY < aX - ( 1 << 15 ) )
+        {
+        return 1;
+        }
+    else
+        {
+        return 0;
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// Parameters:
+//  x   32-LSB of a positive integer
+//  y   32-LSB of a positive integer 
+// ---------------------------------------------------------------------------
+TUint32 TRtpUtil::Sub32( TUint32 aX, TUint32 aY )
+    {
+    if ( aX < aY )
+        return ( 0xFFFFFFFF - ( aY - aX ) + 1 );
+    else
+        return ( aX - aY );
+    }
+
+// ---------------------------------------------------------------------------
+// TUint8* TRtpUtil::Strcpy()
+// 
+// ---------------------------------------------------------------------------
+//
+TUint8* TRtpUtil::Strcpy( TUint8* aTarget, const TUint8* aSource )
+    {
+    TPtr8 ptrTarget( aTarget, ( User::StringLength( aSource ) ) + 1 );
+
+    ptrTarget.SetMax();
+    ptrTarget.Copy( _L8( aSource ) );
+    ptrTarget.ZeroTerminate();
+
+    return aTarget;
+    }
+
+// ---------------------------------------------------------------------------
+// TUint TRtpUtil::GtGetTime()
+// Return time elapse from 01/01/1970 in tenth of millsecond
+// ---------------------------------------------------------------------------
+//
+TUint TRtpUtil::GtGetTime()
+    {
+    TTimeIntervalMicroSeconds32 uspertick;     // scale factor: number of microseconds per system tick
+    UserHal::TickPeriod( uspertick );
+    return static_cast<TUint>( uspertick.Int() // number of '1us periods' per system tick 
+            * User::TickCount()                // number of system ticks
+            / 100 );                           // in tenths of ms, note still wraps after 5 days.
+    }
+
+// ---------------------------------------------------------------------------
+// TUint32 TRtpUtil::Random()
+// 
+// ---------------------------------------------------------------------------
+//
+TUint32 TRtpUtil::Random( TInt64& aSeed )
+    {
+    TInt32 rand = Math::Rand( aSeed );
+    return Abs( rand );
+    }
+
+// ---------------------------------------------------------------------------
+// TReal TRtpUtil::FloatRandom()
+// 
+// ---------------------------------------------------------------------------
+//
+TReal TRtpUtil::FloatRandom( TInt64& aSeed )
+    {
+    TReal rand = Math::FRand( aSeed );
+    return Abs( rand );
+    }
+
+
+#ifdef _DEBUG 
+// ---------------------------------------------------------------------------
+// TInt TRtpUtil::Print()
+// 
+// ---------------------------------------------------------------------------
+//
+void TRtpUtil::Print(  const TDesC8& aP )
+    {
+    const TUint KPrintLength = 5;
+    const TUint KPrintExtLength = 20;
+    TChar notAllowed('%');
+	if ( aP.Locate( notAllowed ) == KErrNotFound )
+		{
+		HBufC8* msg = NULL;
+	    TRAPD( msgError, msg = HBufC8::NewL( aP.Length() + KPrintExtLength ) );
+	    if ( msgError != KErrNone )
+	        return ;
+
+	    TPtr8 b( msg->Des() );
+
+	    b.Append( _L8( "RTP : " ) );
+	    //    b = p;
+	    //apend current time
+	    b.AppendFormat( _L8( "%u - " ), ( TUint * ) ( TRtpUtil::GtGetTime() ) );
+
+	    b.Append( aP );
+	    b.Append( _L8( "\n" ) );
+
+	    TInt ptrSize = static_cast <TInt>( b.Size() );
+	    TBuf<256> buf;
+	    if ( ptrSize < buf.MaxSize() )
+	    	{
+	   	    buf.Copy( b );
+		    RDebug::Print( buf );
+	    	}
+	    else
+	    	{
+	    	_LIT(KRTPWarning, "RTP: Text is too long to be print all");
+	    	RDebug::Print( KRTPWarning );	
+	    	buf.Copy( b.Left( buf.MaxSize() - KPrintLength ));
+	    	}
+	    delete msg;
+		}
+	else
+		{
+		_LIT(KRTPWarning, "RTP: Text contains not allowed characters, log ignored");
+		RDebug::Print( KRTPWarning );							
+		}	
+
+    }
+
+// ---------------------------------------------------------------------------
+// TInt TRtpUtil::Print()
+// 
+// ---------------------------------------------------------------------------
+//
+void TRtpUtil::Print(  const TDesC8& aP, TInt aValue )
+    {
+    const TUint KPrintLength = 5;
+    const TUint KPrintExtLength = 106;
+    TChar notAllowed('%');
+	if ( aP.Locate( notAllowed ) == KErrNotFound )
+		{
+		HBufC8* msg = NULL;
+	    TRAPD( msgError, msg = HBufC8::NewL( aP.Length() + KPrintExtLength ) );
+	    if ( msgError != KErrNone )
+	        return;
+
+	    TPtr8 b( msg->Des() );
+	    b.Append( _L8( "RTP : " ) );
+
+	    //    b = p;
+	    //apend current time
+	    b.AppendFormat( _L8( "%u - " ), ( TUint * ) ( TRtpUtil::GtGetTime() ) );
+	    b.Append( aP );
+	    b.AppendFormat( _L8( "= <%d> " ), aValue );
+	    b.Append( _L8( "\n" ) );
+
+		TInt ptrSize = static_cast <TInt>( b.Size() );
+	    TBuf<256> buf;
+	    if ( ptrSize < buf.MaxSize() )
+	    	{
+	   	    buf.Copy( b );
+		    RDebug::Print( buf );
+	    	}
+	    else
+	    	{
+	    	_LIT(KRTPWarning, "RTP: Text is too long to be print all");
+	    	RDebug::Print( KRTPWarning );	
+	    	buf.Copy( b.Left( buf.MaxSize() - KPrintLength ));
+	    	}
+	    delete msg;
+		}
+	else
+		{
+		_LIT(KRTPWarning, "RTP: Text contains not allowed characters, log ignored");
+		RDebug::Print( KRTPWarning );							
+		}	
+    }
+   
+    
+#endif
+
+
+#ifdef _RTP_LOG_FILE 
+
+// ---------------------------------------------------------------------------
+// TInt TRtpUtil::Print()
+// 
+// ---------------------------------------------------------------------------
+//
+void TRtpUtil::Print( const TDesC& aName, const TDesC8& aP )
+    {
+    HBufC8* msg = NULL;
+    TRAPD( msgError, msg = HBufC8::NewL( aP.Length() + 20 ) );
+    if ( msgError != KErrNone )
+        return;
+
+    TPtr8 b( msg->Des() );
+
+    b.Append( _L8( "RTP : " ) );
+    //    b = p;
+    //apend current time
+    b.AppendFormat( _L8( "%u - " ), ( TUint * ) ( TRtpUtil::GtGetTime() ) );
+
+    b.Append( aP );
+    b.Append( _L8( "\n" ) );
+
+    TFileUtil::LogMessage( aName, b );
+
+    delete msg;
+    }
+
+// ---------------------------------------------------------------------------
+// TInt TRtpUtil::Print()
+// 
+// ---------------------------------------------------------------------------
+//
+void TRtpUtil::Print( const TDesC& aName, const TDesC8& aP, TUint32 aValue )
+    {
+    HBufC8* msg = NULL;
+    TRAPD( msgError, msg = HBufC8::NewL( aP.Length() + 106 ) );
+    if ( msgError != KErrNone )
+        return;
+
+    TPtr8 b( msg->Des() );
+    b.Append( _L8( "RTP : " ) );
+
+    //    b = p;
+    //apend current time
+    b.AppendFormat( _L8( "%u - " ), ( TUint * ) ( TRtpUtil::GtGetTime() ) );
+    b.Append( aP );
+    b.AppendFormat( _L8( "<%d> " ), aValue );
+    b.Append( _L8( "\n" ) );
+
+    TFileUtil::LogMessage( aName, b );
+
+
+    delete msg;
+	}
+
+// ---------------------------------------------------------------------------
+// TInt TFileUtil::LogMessage()
+// 
+// ---------------------------------------------------------------------------
+//
+TInt TFileUtil::LogMessage( const TFileName& name, const TDesC8& mess )
+    {
+    RFs fs;
+    RFile file;
+    TFileName nameWithPath;
+
+    nameWithPath = KDefaultPath;
+    nameWithPath.Append( name );
+    nameWithPath.ZeroTerminate();
+    TInt err = fs.Connect();
+
+    if ( err != KErrNone )
+        return err;
+
+    err = file.Open( fs, nameWithPath, EFileStream | EFileWrite | EFileShareExclusive );
+    if ( err == KErrNotFound )
+        err = file.Create( fs, nameWithPath, EFileStream | EFileWrite | EFileShareExclusive );
+    if ( err != KErrNone )
+        return err;
+
+    TInt off( 0 );
+    err = file.Seek( ESeekEnd, off );
+    if ( err != KErrNone )
+        return err;
+
+    file.Write( mess );
+    file.Flush();
+    file.Close();
+    fs.Close();
+
+    return KErrNone;
+    }
+
+// ---------------------------------------------------------------------------
+// TInt TFileUtil::InitLogFile()
+// 
+// ---------------------------------------------------------------------------
+//
+TInt TFileUtil::InitLogFile( const TFileName& name )
+    {
+    RFs fs;
+    RFile file;
+    TFileName nameWithPath;
+
+    nameWithPath = KDefaultPath;
+    nameWithPath.Append( name );
+    nameWithPath.ZeroTerminate();
+    TInt err = fs.Connect();
+
+    if ( err != KErrNone )
+        return err;
+
+    err = file.Replace( fs, nameWithPath, EFileStream | EFileWrite | EFileShareExclusive );
+    if ( err != KErrNone )
+        return err;
+
+    file.Close();
+    fs.Close();
+
+    return KErrNone;
+    }
+#endif
+
+
+
+//  End of File