diff -r 000000000000 -r ba25891c3a9e iaupdate/IAD/engine/inc/iaupdateutils.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/iaupdate/IAD/engine/inc/iaupdateutils.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,162 @@
+/*
+* Copyright (c) 2009 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:   ?Description
+*
+*/
+
+
+
+#ifndef IAUPDATEUTILS_H
+#define IAUPDATEUTILS_H
+
+#include <e32base.h>
+#include <driveinfo.h>
+
+// For silent installation
+#include <SWInstDefs.h>
+
+class TIAUpdateVersion;
+class MIAUpdateNode;
+
+namespace IAUpdateUtils
+{
+
+/**
+ * Converts descriptor containing hexadecimal number to an integer.
+ * Accepts "ABCD" and "0xABCD" format numbers.
+ * Leaves if corrupt parameter.
+ * @param aDes Descriptor representation of a hexadecimal.
+ * @return TInt Converted integer.
+ */
+IMPORT_C TInt DesHexToIntL( const TDesC& aDes );
+
+/**
+ * Converts a version string of format <major>.<minor>.<build> to version components.
+ * 
+ * @note If part of the version information is not included in the aVersion,
+ * then missing version parts are not set and those version part references will 
+ * contain their original values. So, caller needs to initialize them correctly before
+ * calling this function.
+ *
+ * @param aStr Version string
+ * @param aMajor On return contains the major version.
+ * @param aMinor On return contains the minor version.
+ * @param aBuild On return contains the build number.
+*/
+IMPORT_C void DesToVersionL( const TDesC& aVersion, 
+                             TInt8& aMajor, TInt8& aMinor, TInt16& aBuild );
+
+/**
+ * Checks if application is installed.
+ * Function is able to check if the given UID is SID or pUID. If SID is given then
+ * the package where it is included is returned. If pUID is given, then the pUID is
+ * returned.
+ * @param aUid SID or pUID of the application
+ * @return TUid pUID of the application. If app not found TUid::Null() returned.
+ **/
+IMPORT_C TUid AppPackageUidL( const TUid& aUid );
+
+/**
+ * Checks if application is installed, and if so, returns its version and the pUid.
+ * Function is able to check if the given UID is SID or pUID. If SID is given then
+ * the package where it is included is returned. If pUID is given, then the pUID is
+ * returned.
+ * @param aUid SID or pUID of the application
+ * @param aVersion Returned version if app is found. If app not found, unchanged
+ * @return TUid pUID of the application. If app not found TUid::Null() returned.
+ **/
+IMPORT_C TUid AppPackageUidL( const TUid& aUid, TIAUpdateVersion &aVersion );
+
+
+/**
+ * Checks if application is installed.
+ * Function is able to check if the given UID is SID or pUID.
+ * @param aUid SID or pUID of the application
+ * @return ETrue if application is installed on the device
+ **/
+IMPORT_C TBool IsAppInstalledL( const TUid& aUid );    
+
+/**
+ * Checks if application is installed, and if so, returns its version.
+ * Function is able to check if the given UID is SID or pUID.
+ * @param aUid SID or pUID of the application
+ * @param aVersion Returned version if app is found. If app not found, unchanged
+ * @return ETrue if application is installed on the device
+ **/
+IMPORT_C TBool IsAppInstalledL( const TUid& aUid, TIAUpdateVersion &aVersion );
+
+
+IMPORT_C TBool SpaceAvailableInInternalDrivesL( 
+                                         RPointerArray<MIAUpdateNode>& aNodes );
+
+/**
+ * 
+ * Reads from sis registry existence of exe in installation
+ * 
+ * @param aPUid Package UID of installation
+ * @param aExecutable Exe file name 
+ *
+ * @return ETrue if exe is found in gvben installation
+ **/
+IMPORT_C TBool IsInstalledL( const TUid& aPUid, const TDesC& aExecutable );  
+
+/**
+ * Creates options for silent install.
+ * Uses DriveToInstallL to etermine target drive to install.
+ * 
+ * @param aUid PUID of the application
+ * @param aSize Estimated size of installation
+ */
+IMPORT_C SwiUI::TInstallOptions SilentInstallOptionsL( const TUid& aUid,
+                                                       TInt aSize );
+
+
+
+/**
+ * Finds drive where a package is currently installed
+ * 
+ * @param aLocationDrive Drive where a package is currently installed
+ * @return ETrue if a package previously installed to an available drive
+ **/
+TBool InstalledDriveL( const TUid& aUid, TDriveUnit& aLocationDrive );
+
+TBool NextInternalDriveL( RFs& aFs, 
+                          TDriveUnit aCurrentDrive, 
+                          TDriveUnit& aNextDrive );
+
+/**
+ * Determines target drive to install
+ * 
+ * @param aUid PUID of the application
+ * @param aSize Estimated size of installation
+ * @return Drive to install
+ **/
+TDriveUnit DriveToInstallL( const TUid& aUid, TInt aSize );
+
+TDriveUnit BiggestInternalDriveL();
+
+TBool InternalDriveWithSpaceL( TInt aSize, 
+                               TDriveUnit aPreferredDriveUnit, 
+                               TDriveUnit& aTargetDriveUnit );
+
+void SaveCurrentFwVersionIfNeededL();
+
+TBool IsFirmwareChangedL(); 
+
+TInt64 FreeDiskSpace( RFs& aFs, TInt aDriveNumber );
+
+}
+
+
+#endif  //  IAUPDATEUTILS_H