--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/iaupdate/IAD/engine/controller/src/iaupdatecontrollerfile.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,318 @@
+/*
+* Copyright (c) 2007-2008 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:   This module contains the implementation of CIAUpdateControllerFile 
+*                class  member functions.
+*
+*/
+
+
+
+
+#include <bautils.h>
+#include <s32file.h>
+#include <sysutil.h>
+
+#include "iaupdatecontrollerfile.h"
+#include "iaupdatectrlfileconsts.h"
+
+
+// This constant will be used to check if the IAD application
+// and its updates are using the same version of the file. If the versions
+// differ, then this may require additional checking in the future versions
+// when data is internalized. For example, previous IAD may give old version data 
+// into the file during self update.
+const TInt KVersion( 1 );
+
+const TInt KSizeOfFile( 16 );
+    
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::NewL
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CIAUpdateControllerFile* CIAUpdateControllerFile::NewL( 
+    const TDesC& aFile )
+    {
+    CIAUpdateControllerFile* self =
+        CIAUpdateControllerFile::NewLC( aFile );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::NewLC
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CIAUpdateControllerFile* CIAUpdateControllerFile::NewLC( 
+    const TDesC& aFile )
+    {
+    CIAUpdateControllerFile* self =
+        new( ELeave) CIAUpdateControllerFile();
+    CleanupStack::PushL( self );
+    self->ConstructL( aFile );
+    return self;    
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::CIAUpdateControllerFile
+//
+// -----------------------------------------------------------------------------
+//
+CIAUpdateControllerFile::CIAUpdateControllerFile()
+: CBase(),
+  iRefreshTime( 0 ),
+  iLanguage( User::Language() )
+    {
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::ConstructL
+//
+// -----------------------------------------------------------------------------
+//
+void CIAUpdateControllerFile::ConstructL( const TDesC& aFile )
+    {
+    User::LeaveIfError( iFsSession.Connect() );
+    User::LeaveIfError( 
+        iFsSession.SetSessionToPrivate( 
+            IAUpdateCtrlFileConsts::KDrive ) );
+    
+    User::LeaveIfError( iFsSession.SessionPath( iPath ) );
+    BaflUtils::EnsurePathExistsL( iFsSession, iPath );
+    iPath.Append( aFile );
+    
+    // Read data from the file if the file exists.
+    // Otherwise, let default values remain.
+    ReadControllerDataL(); 
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::~CIAUpdateControllerFile
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CIAUpdateControllerFile::~CIAUpdateControllerFile()
+    {
+    iFsSession.Close();
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::ReadControllerDataL
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TBool CIAUpdateControllerFile::ReadControllerDataL()
+	{
+	RFile file;
+    TInt err = file.Open( iFsSession, iPath, EFileRead|EFileShareAny );
+    if ( err == KErrNotFound )
+    	{
+    	// File did not exist. 
+    	// So, nothing to do here anymore.
+    	return EFalse;
+    	}
+    User::LeaveIfError( err );
+    	
+    CleanupClosePushL( file );
+    
+    RFileReadStream stream( file, 0 );
+    CleanupClosePushL( stream );
+
+    InternalizeL( stream );
+
+    CleanupStack::PopAndDestroy( &stream );
+    CleanupStack::PopAndDestroy( &file );
+
+    return ETrue;
+	}
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::WriteControllerDataL
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CIAUpdateControllerFile::WriteControllerDataL()
+	{
+	TDriveUnit driveUnit( IAUpdateCtrlFileConsts::KDrive );
+	if ( SysUtil::DiskSpaceBelowCriticalLevelL( 
+	        &iFsSession, KSizeOfFile, driveUnit ) )
+	    {
+		User::Leave( KErrDiskFull );
+	    }
+	
+	RFile file;
+    User::LeaveIfError( 
+        file.Replace( iFsSession, iPath, EFileWrite|EFileShareAny ) );
+    CleanupClosePushL( file );
+    
+    RFileWriteStream stream( file, 0 );
+    CleanupClosePushL( stream );
+
+    ExternalizeL( stream );
+    
+    stream.CommitL();
+    
+    CleanupStack::PopAndDestroy( &stream );
+    CleanupStack::PopAndDestroy( &file );
+	}
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::SetCurrentData
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CIAUpdateControllerFile::SetCurrentData()
+    {
+    SetCurrentRefreshTime();
+    SetCurrentLanguage();
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::RefreshTime
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C const TTime& CIAUpdateControllerFile::RefreshTime() const
+    {
+    return iRefreshTime;
+    }
+    
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::SetRefreshTime
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CIAUpdateControllerFile::SetRefreshTime( const TTime& aTime )
+    {
+    iRefreshTime = aTime;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::SetRefreshTime
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CIAUpdateControllerFile::SetRefreshTime( TInt64 aTime )
+    {
+    iRefreshTime = aTime;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::SetCurrentRefreshTime
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CIAUpdateControllerFile::SetCurrentRefreshTime()
+    {
+    TTime universalTime;
+    universalTime.UniversalTime();
+    iRefreshTime = universalTime;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::Language
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TLanguage CIAUpdateControllerFile::Language() const
+    {
+    return iLanguage;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::SetLanguage
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CIAUpdateControllerFile::SetLanguage( TLanguage aLanguage )
+    {
+    iLanguage = aLanguage;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::SetCurrentLanguage
+//
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CIAUpdateControllerFile::SetCurrentLanguage()
+    {
+    SetLanguage( User::Language() );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::InternalizeL
+//
+// -----------------------------------------------------------------------------
+//
+void CIAUpdateControllerFile::InternalizeL( RReadStream& aStream )
+	{
+	// If you make changes here, 
+	// remember to update ExternalizeL accordingly!!!
+
+    TInt version( aStream.ReadInt32L() );
+
+    // Notice! In the future, some checking maybe required here
+    // to be sure that file version is correct and the data can be
+    // internalized correctly between different versions.
+    if ( version != KVersion )
+        {
+        // For now, just leave with the corrupt error.
+        User::Leave( KErrCorrupt );
+        }
+	
+	TInt64 refreshTime( 0 );
+	aStream >> refreshTime;
+    SetRefreshTime( refreshTime );
+    
+    TInt language( aStream.ReadInt32L() );
+    // Static casting is safe to do here because enum and TInt are the same.
+    SetLanguage( static_cast< TLanguage >( language ) );
+	}
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateControllerFile::ExternalizeL
+//
+// -----------------------------------------------------------------------------
+//
+void CIAUpdateControllerFile::ExternalizeL( RWriteStream& aStream )
+	{
+	// If you make changes here, 
+	// remember to update InternalizeL accordingly!!!
+
+    aStream.WriteInt32L( KVersion );
+	
+	TInt64 refreshTime( RefreshTime().Int64() );
+	aStream << refreshTime;
+
+    TInt language( Language() );
+    aStream.WriteInt32L( language );
+	}