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/*
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
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* which accompanies this distribution, and is available
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* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Interface for quering the drive information of the system.
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*
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*/
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#ifndef DRIVE_INFO_H
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#define DRIVE_INFO_H
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// INCLUDES
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#include <e32std.h>
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#include <f32file.h>
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// CLASS DECLARATION
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/**
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* Class holds the drive information of the system. Platform Environment API provides
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* interface for quering the drive information of the system. Methods provided by the API should be
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* used instead of the hard coded drive identifiers.
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* The API consist of the DriveInfo class, PathInfo class and system paths are defined
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* in PathConfiguration.hrh. The PathInfo class is defined in PathInfo.h.
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*
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* Usage:
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*
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* @code
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* #include <DriveInfo.h>
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*
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* // Get the drive identifier of the default removable mass storage.
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* TInt drive;
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* User::LeaveIfError( DriveInfo::GetDefaultDrive(
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* DriveInfo::EDefaultRemovableMassStorage, drive ) );
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*
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* // 'drive' contains now the drive identifier of the default removable mass storage.
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*
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* // Get the drive status of the default removable mass storage.
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* TUint status;
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* User::LeaveIfError( DriveInfo::GetDriveStatus( fs, drive, status ) );
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*
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* // 'status' contains now the drive status of the default removable mass storage.
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*
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* // Get all drives that are visible to the user in TDriveList.
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* TDriveList driveList;
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* TInt driveCount;
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* User::LeaveIfError( DriveInfo::GetUserVisibleDrives( fs, driveList, driveCount ) );
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*
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* // 'driveList' contains now the user visible drives.
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* // 'driveCount'contains now the drive count i.e. number of non zero items in driveList.
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*
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* // Access the drives stored in 'driveList'
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* TInt driveListLen( driveList.Length() ); // The length of 'driveList'
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* for( TInt i( 0 ); i < driveListLen; ++i )
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* {
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* if ( driveList[ i ] ) // Non zero items are valid drives
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* {
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* // 'i' contains drive identifier specified by TDriveNumber
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* // ...
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* }
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* }
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*
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* // Get all drives that are visible to the user in DriveInfo::TDriveArray.
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* DriveInfo::TDriveArray driveArray;
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* User::LeaveIfError( DriveInfo::GetUserVisibleDrives( fs, driveArray ) );
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*
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* // 'driveArray' contains now the user visible drives.
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*
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* // Access the drives stored in 'driveArray'
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* driveCount = driveArray.Count() ); // The number of drives stored in 'driveArray'
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* for( TInt i( 0 ); i < driveCount; ++i )
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* {
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* TDriveNumber drive( driveArray[ i ] ); // The drive identifier at position 'i'
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* TChar driveLetter( driveArray.LetterAt( i ) ); // The drive letter at position 'i'
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* // ...
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* }
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*
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* @endcode
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*
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* Error handling:
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*
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* System wide error codes are returned to indicate errors in methods that can fail.
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*
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* @lib PlatformEnv.dll
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* @since 3.2
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*/
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NONSHARABLE_CLASS(DriveInfo)
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{
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public:
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/**
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* Enumeration Default Drives to be used with GetDefaultDrive() method.
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* @since 3.2
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*/
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enum TDefaultDrives
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{
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/** To get the default ROM drive.
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*/
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EDefaultRom = 0,
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/** To get the default RAM drive.
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*/
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EDefaultRam,
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/** To get the default system drive.
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* The default system drive is the preferred drive for system specific functionalities.
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*/
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EDefaultSystem,
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/** To get the default phone memory like FLASH memory, internal memory card, hard drive etc.
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*/
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EDefaultPhoneMemory,
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/** To get the default mass storage like any kind of memory card, hard drive, USB stick etc.
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* This definition should be always used, unless a removable mass storage is explicitly required.
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* The default mass storage is the preferred drive for a large amount of user files.
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*/
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EDefaultMassStorage,
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/** To get the default removable mass storage like memory card, USB stick etc.
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* This definition should be used only when explicitly removable mass storage is required.
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*/
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EDefaultRemovableMassStorage
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};
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/**
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* This method gets the default drive of requested type.
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* If the device does not have the requested default drive, then KErrNotSupported is returned.
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* This happens for example if device supports only internal drives and
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* EDefaultRemovableMassStorage is requested.
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*
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* @since 3.2
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* @param aDefaultDrive A default drive identifier specified by TDefaultDrives
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* @param aDrive Stores a drive identifier specified by TDriveNumber
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* @return A system wide error code.
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*
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* @see TDefaultDrives
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* @see TDriveNumber
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*/
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IMPORT_C static TInt GetDefaultDrive( TInt aDefaultDrive, TInt& aDrive );
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/**
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* This method gets the default drive of requested type.
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* If the device does not have the requested default drive, then KErrNotSupported is returned.
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* This happens for example if device supports only internal drives and
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* EDefaultRemovableMassStorage is requested.
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*
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* @since 3.2
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* @param aDefaultDrive A default drive identifier specified by TDefaultDrives
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* @param aDriveLetter Stores a drive letter
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* @return A system wide error code.
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*
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* @see TDefaultDrives
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*/
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IMPORT_C static TInt GetDefaultDrive( TInt aDefaultDrive, TChar& aDriveLetter );
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/**
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* Enumeration bit mask Status used by GetDriveStatus() method.
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* @since 3.2
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*/
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enum TStatus
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{
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/** To indicate that the drive is internal and
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* cannot be physically removed.
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*/
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EDriveInternal = 0x1,
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/** To indicate that the drive is physically removable.
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*/
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EDriveRemovable = 0x2,
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/** To indicate that the drive is remote.
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*/
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EDriveRemote = 0x4,
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/** To indicate that the drive is present.
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*/
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EDrivePresent = 0x8,
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/** To indicate that the drive is locked.
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*/
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EDriveLocked = 0x10,
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/** To indicate that the drive is corrupt.
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*/
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EDriveCorrupt = 0x20,
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/** To indicate that the drive is in use i.e.
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* reserved for some exclusive usage.
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*/
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EDriveInUse = 0x40,
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/** To indicate that the drive is readonly.
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*/
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EDriveReadOnly = 0x80,
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/** To indicate that the drive is substed.
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*/
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EDriveSubsted = 0x100,
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/** To indicate that the drive is user visible.
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* The UI is allowed to show the drive to the user.
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*/
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EDriveUserVisible = 0x200,
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/** To indicate that the drive is externally mountable i.e.
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* can be mounted from PC or from other devices.
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*/
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EDriveExternallyMountable = 0x400,
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/** To indicate that the drive is software ejectable.
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* The user can select software based eject from the UI for this drive.
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*/
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EDriveSwEjectable = 0x800,
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/** To indicate that the drive is ROM drive.
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*/
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EDriveRom = 0x1000,
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/** To indicate that the drive is RAM drive.
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*/
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EDriveRam = 0x2000,
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/** To indicate that the drive has been formatted.
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*/
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EDriveFormatted = 0x4000,
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/** To indicate that the drive is formattable.
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*/
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EDriveFormattable = 0x8000,
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/** To indicate that the drive is lockable i.e. password can be set.
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*/
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EDriveLockable = 0x10000,
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/** To indicate that the drive is password protected.
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*/
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EDriveHasPassword = 0x20000
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};
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/**
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* This method gets the drive status, a bit mask specified by TStatus.
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*
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* @since 3.2
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* @param aFs An opened file server session
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* @param aDrive A drive identifier specified by TDriveNumber
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* @param aStatus Stores the drive status bit mask specified by TStatus
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* @return A system wide error code.
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*
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* @see RFs
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* @see TDriveNumber
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* @see TStatus
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*/
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IMPORT_C static TInt GetDriveStatus( RFs& aFs, TInt aDrive, TUint& aStatus );
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/**
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* This method gets all the drives that are visible to the user.
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*
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* @since 3.2
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* @param aFs An opened file server session
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* @param aDriveList Stores the user visible drives in the same format than RFs::DriveList() method.
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* @param aDriveCount Stores the drive count i.e. number of non zero items in aDriveList.
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* @return A system wide error code.
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*
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* @see RFs
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* @see TDriveList
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*/
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IMPORT_C static TInt GetUserVisibleDrives(
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RFs& aFs, TDriveList& aDriveList, TInt& aDriveCount );
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/**
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* This method gets the user visible drives with specified file server drive
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* attributes.
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*
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* Note that file server drive attributes are not equal with TStatus definitions.
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*
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* @since 3.2
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* @param aFs An opened file server session
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* @param aDriveList Stores the user visible drives in the same format than RFs::DriveList() method.
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* @param aDriveCount Stores the drive count i.e. number of non zero items in aDriveList.
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* @param aFlags The mask flags specified for RFs::DriveList() method.
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* @return A system wide error code.
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*
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* @see RFs
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* @see TDriveList
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*/
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IMPORT_C static TInt GetUserVisibleDrives(
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RFs& aFs, TDriveList& aDriveList, TInt& aDriveCount, TUint aFlags );
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/**
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* This method methods checks the given drive list and removes the drives hidden from the user.
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* It is intended to be used with the drive lists that are not read by using GetUserVisibleDrives() method
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* e.g. the drive list has been got as a parameter elsewhere.
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*
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* @since 3.2
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* @param aDriveList A drive list where to remove the drives hidden from the user.
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* @return A drive count i.e. number of non zero items in the given drive list after removal.
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*
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* @see TDriveList
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*/
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IMPORT_C static TInt StripUserHiddenDrives( TDriveList& aDriveList );
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/**
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* This method returns the number of drives in the given drive list.
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*
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* @since 3.2
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* @param aDriveList A drive list where to count the number of drives.
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* @return A drive count i.e. number of non zero items in the given drive list.
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*
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* @see TDriveList
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*/
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|
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IMPORT_C static TInt DriveCount( const TDriveList& aDriveList );
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/**
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* Class TDriveArray provides easy-to-use access to drive identifiers.
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* @since S60 5.0
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*/
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class TDriveArray
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{
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|
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public: // Constructors
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inline TDriveArray();
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inline TDriveArray( const TDriveList& aDriveList );
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|
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|
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public:
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|
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/**
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|
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* This method sets the drive array data from given drive list.
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|
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*
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|
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* @since 3.2
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|
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* @param aDriveList A drive list where to set the data from.
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|
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*
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|
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* @see TDriveList
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|
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*/
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|
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IMPORT_C void Set( const TDriveList& aDriveList );
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|
344 |
|
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|
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/**
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|
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* This method resets the array.
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|
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*
|
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|
348 |
* @since 3.2
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|
349 |
*/
|
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|
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inline void Reset();
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|
351 |
|
williamr@2
|
352 |
/**
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|
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* This method gets the number of drives in the array.
|
williamr@2
|
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*
|
williamr@2
|
355 |
* @since 3.2
|
williamr@2
|
356 |
* @return A number of drives in the array.
|
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|
357 |
*/
|
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|
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inline TInt Count() const;
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williamr@2
|
359 |
|
williamr@2
|
360 |
/**
|
williamr@2
|
361 |
* This method gets the drive identifier at given index within the array.
|
williamr@2
|
362 |
*
|
williamr@2
|
363 |
* @since 3.2
|
williamr@2
|
364 |
* @param aIndex The position of drive within the array.
|
williamr@2
|
365 |
* @return A drive identifier specified by TDriveNumber.
|
williamr@2
|
366 |
*
|
williamr@2
|
367 |
* @panic USER 21 if aIndex is negative or is greater than
|
williamr@2
|
368 |
* the number of drives in the array
|
williamr@2
|
369 |
*
|
williamr@2
|
370 |
* @see TDriveNumber
|
williamr@2
|
371 |
*/
|
williamr@2
|
372 |
inline TDriveNumber operator[]( TInt aIndex ) const;
|
williamr@2
|
373 |
|
williamr@2
|
374 |
/**
|
williamr@2
|
375 |
* This method gets the drive letter at given index within the array.
|
williamr@2
|
376 |
*
|
williamr@2
|
377 |
* @since 3.2
|
williamr@2
|
378 |
* @param aIndex The position of drive within the array.
|
williamr@2
|
379 |
* @return A drive letter.
|
williamr@2
|
380 |
*
|
williamr@2
|
381 |
* @panic USER 21 if aIndex is negative or is greater than
|
williamr@2
|
382 |
* the number of drives in the array
|
williamr@2
|
383 |
*/
|
williamr@2
|
384 |
IMPORT_C TChar LetterAt( TInt aIndex ) const;
|
williamr@2
|
385 |
|
williamr@2
|
386 |
private:
|
williamr@2
|
387 |
TBuf8< KMaxDrives > iArray;
|
williamr@2
|
388 |
};
|
williamr@2
|
389 |
|
williamr@2
|
390 |
/**
|
williamr@2
|
391 |
* This method gets all the drives that are visible to the user.
|
williamr@2
|
392 |
*
|
williamr@2
|
393 |
* @since 3.2
|
williamr@2
|
394 |
* @param aFs An opened file server session
|
williamr@2
|
395 |
* @param aDriveArray Stores the user visible drives
|
williamr@2
|
396 |
* @return A system wide error code.
|
williamr@2
|
397 |
*
|
williamr@2
|
398 |
* @see RFs
|
williamr@2
|
399 |
* @see TDriveArray
|
williamr@2
|
400 |
*/
|
williamr@2
|
401 |
IMPORT_C static TInt GetUserVisibleDrives( RFs& aFs, TDriveArray& aDriveArray );
|
williamr@2
|
402 |
|
williamr@2
|
403 |
/**
|
williamr@2
|
404 |
* This method gets the user visible drives with specified file server drive
|
williamr@2
|
405 |
* attributes.
|
williamr@2
|
406 |
*
|
williamr@2
|
407 |
* Note that file server drive attributes are not equal with TStatus definitions.
|
williamr@2
|
408 |
*
|
williamr@2
|
409 |
* @since 3.2
|
williamr@2
|
410 |
* @param aFs An opened file server session
|
williamr@2
|
411 |
* @param aDriveArray Stores the user visible drives
|
williamr@2
|
412 |
* @param aFlags The mask flags specified for RFs::DriveList() method.
|
williamr@2
|
413 |
* @return A system wide error code.
|
williamr@2
|
414 |
*
|
williamr@2
|
415 |
* @see RFs
|
williamr@2
|
416 |
* @see TDriveArray
|
williamr@2
|
417 |
*/
|
williamr@2
|
418 |
IMPORT_C static TInt GetUserVisibleDrives(
|
williamr@2
|
419 |
RFs& aFs, TDriveArray& aDriveArray, TUint aFlags );
|
williamr@2
|
420 |
|
williamr@2
|
421 |
private:
|
williamr@2
|
422 |
|
williamr@2
|
423 |
/**
|
williamr@2
|
424 |
* C++ default constructor.
|
williamr@2
|
425 |
*/
|
williamr@2
|
426 |
DriveInfo();
|
williamr@2
|
427 |
};
|
williamr@2
|
428 |
|
williamr@2
|
429 |
#include "driveinfo.inl"
|
williamr@2
|
430 |
|
williamr@2
|
431 |
#endif // DRIVE_INFO_H
|
williamr@2
|
432 |
|
williamr@2
|
433 |
// End of File
|