MCL/sf/os/kernelhwsrv: comparison userlibandfileserver/fileserver/sfsrv/cl

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--1:000000000000
+:a41df078684a
+// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "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:
+// f32\sfsrv\cl_cli.cpp
+//
+//
+#include "cl_std.h"
+#include <f32fsys.h>
+EFSRV_EXPORT_C TBool RFs::IsValidDrive(TInt aDrive)
+/**
+Tests whether the specified drive number is valid.
+A valid drive number is any number between 0 and (KMaxDrives-1) inclusive,
+or the specific value KDefaultDrive (implying the session default drive).
+@param aDrive The drive number.
+@return True if the drive is valid; false if not.
+@see TDriveNumber
+*/
+	{
+	return((aDrive>=0 && aDrive<KMaxDrives) || aDrive==KDefaultDrive);
+	}
+EFSRV_EXPORT_C TInt RFs::CharToDrive(TChar aChar,TInt& aDrive)
+/**
+Maps a drive character to a drive number.
+The drive character must be in the range A to Z or a to z. For example, drive A (or a)
+corresponds to zero, drive B (or b) corresponds to 1 etc. For the drive number
+enumeration, see TDriveNumber.
+@param aChar  The drive character.
+@param aDrive On return, contains the drive number.
+@return KErrNone, if successful;
+KErrArgument, if the drive character is not in the range A to Z or a to z.
+@see TDriveNumber
+*/
+	{
+	aChar.UpperCase();
+	if (aChar>='A' && aChar<='Z')
+		{
+		aDrive=(TInt)aChar-'A';
+		return(KErrNone);
+		}
+	return(KErrArgument);
+	}
+EFSRV_EXPORT_C TInt RFs::DriveToChar(TInt aDrive,TChar& aChar)
+/**
+Maps a drive number to the corresponding character.
+The drive number must be in the range 0 to (KMaxDrives-1). For example, drive
+number zero (EDriveA) corresponds to drive A, one (EDriveB)
+corresponds to drive B. For the drive number enumeration, see TDriveNumber.
+The drive number can also be KDefaultDrive, implying the default drive. In this
+case the current drive is taken and converted.
+@param aDrive The drive number.
+@param aChar  On return, contains the drive character.
+@return KErrNone, if successful;
+KErrArgument, if the drive number is invalid;
+otherwise one of the other system-wide error codes.
+*/
+	{
+	if (aDrive==KDefaultDrive)
+		{
+		TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsDriveToChar, MODULEUID, aDrive);
+		RFs fs;
+		TFileName path;
+		TInt r=fs.Connect();
+		if (r!=KErrNone)
+			return(r);
+		r=fs.SessionPath(path);
+		fs.Close();
+		if (r!=KErrNone)
+			return(r);
+		aChar=path[0];
+		TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsDriveToCharReturn, MODULEUID, KErrNone, aChar);
+		return(KErrNone);
+		}
+	if (!IsValidDrive(aDrive))
+		return(KErrArgument);
+	aChar=aDrive+'A';
+	return(KErrNone);
+	}
+EFSRV_EXPORT_C TBool RFs::IsRomAddress(TAny *aPtr)
+/**
+Tests whether the specified address is in ROM.
+@param aPtr The address.
+@return True, if the address is in ROM; false, if not.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsIsRomAddress, MODULEUID, aPtr);
+	TBool res;
+	TInt r=User::IsRomAddress(res,aPtr); // Only returns error on WINS
+	if (r!=KErrNone)
+		res=EFalse;
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsIsRomAddressReturn, MODULEUID, res);
+	return(res);
+	}
+/**
+Obtain the system drive number.
+The System Drive is a defined drive on the device which is:
+- Read/Writeable
+- Internal: Always available and not removable from the device
+- Non-Volatile (e.g. Flash memory, battery-backed RAM)
+- Only Accessible via Rfs (e.g. not available via USB mass storage)
+The System drive is utilised as:
+- Storage for Persistent settings from system and application software
+- Storage for Localisation resources
+- A Default Drive for user data
+- A Target Drive for Software installations
+It the system drive is not set previously (see RFs::SetSystemDrive) EDriveC is returned by default.
+@see RFs::GetSystemDriveChar
+@see RFs::SetSystemDrive
+@see TDriveNumber
+@return TDriveNumber contains the drive number of the system drive.
+*/
+EFSRV_EXPORT_C TDriveNumber RFs::GetSystemDrive()
+{
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsGetSystemDrive, MODULEUID);
+TInt drive;
+	TInt err = RProperty::Get(TSecureId(KFileServerUidValue), KSystemDriveKey, drive);
+if(err==KErrNone)
+{
+if((drive>=EDriveA) && (drive<=EDriveZ))
+{
+			TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsGetSystemDriveReturn, MODULEUID, drive);
+return static_cast<TDriveNumber>(drive);
+}
+}
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsGetSystemDriveReturn, MODULEUID, EDriveC);
+return EDriveC;
+	}
+/**
+This is a wrapper around GetSystemDrive() function. It returns the character corresponding to the system drive.
+@parameter aDriveChar On return, contains the system drive character
+@return KErrNone if successful, otherwise one of the other system-wide error codes
+@see RFs::GetSystemDrive
+*/
+EFSRV_EXPORT_C TChar RFs::GetSystemDriveChar()
+	{
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsGetSystemDriveChar, MODULEUID);
+	TInt r = 'A' + GetSystemDrive();
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsGetSystemDriveCharReturn, MODULEUID, r);
+	return r;
+	}
+/**
+Set a specified drive as a "System Drive", see RFs::GetSystemDrive().
+The "System Drive" can be set only once, any subsequent calls will result in the error 'KErrAlreadyExists'.
+The media type for the system drive shall be one of the: EMediaHardDisk, EMediaFlash, EMediaNANDFlash, EMediaRam
+Required drive attributes: KDriveAttLocal, KDriveAttInternal
+Prohibited drive attributes: KDriveAttRom,KDriveAttRedirected,KDriveAttSubsted,KDriveAttRemovable
+@param  aSystemDrive specifies the drive number to be set as System Drive
+@return KErrNone if successful, otherwise one of the other system-wide error codes
+@capability TCB
+*/
+EFSRV_EXPORT_C TInt RFs::SetSystemDrive(TDriveNumber aSystemDrive)
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsSetSystemDrive, MODULEUID, Handle(), aSystemDrive);
+TInt r = SendReceive(EFsSetSystemDrive, TIpcArgs(aSystemDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetSystemDriveReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Connect(TInt aMessageSlots)
+/**
+Connects a client to the file server.
+To end the file server session, use Close().
+@param aMessageSlots The number of message slots required. The default value of
+				     KFileServerDefaultMessageSlots indicates that message
+				     slots will be acquired dynamically from the system
+				     wide pool. Override this value with a fixed number, if
+				     a fixed number of slots are to be allocated to the session.
+				     If overriding, note that the number of message slots
+				     represents the number of operations, such as reads
+				     and writes, that can be outstanding at once;
+				     always remember to provide a spare slot for
+				     the cancel operation.
+@return KErrNone, if successful, otherwise one of the other system-wide
+error codes.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsConnect, MODULEUID, aMessageSlots);
+	_LIT(KFileServerName,"!FileServer");
+	TInt r = CreateSession(KFileServerName,Version(),aMessageSlots);
+	TRACERET2(UTF::EBorder, UTraceModuleEfsrv::EFsConnectReturn, MODULEUID, r, Handle());
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::SetSessionToPrivate(TInt aDrive)
+/**
+Sets the session path to point to the private path on the specified drive.
+The private directory does not need to exist at this point.
+The private path for a process has the form: \\Private\\13579BDF\\
+where 13579BDF is the identity of the process.
+@param aDrive The drive for which information is requested.
+Specify a drive in the range EDriveA to EDriveZ for drives
+			  A to Z respectively.
+@return KErrNone, if successful, otherwise one of the other system-wide
+error codes.
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsSetSessionToPrivate, MODULEUID, Handle(), aDrive);
+	TInt r = SendReceive(EFsSessionToPrivate,TIpcArgs(aDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetSessionToPrivateReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::PrivatePath(TDes& aPath)
+/**
+Creates the text defining the private path for a process.
+The private path for a process has the form: \\Private\\13579BDF\\
+where 13579BDF is the identity of the process.
+@param aPath On successful return, contains the private path for a process.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsPrivatePath, MODULEUID, Handle());
+	TInt r = SendReceive(EFsPrivatePath,TIpcArgs(&aPath));
+	TRACERETMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsPrivatePathReturn, MODULEUID, r, aPath);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::CreatePrivatePath(TInt aDrive)
+/**
+Creates the private path for a process on the specified drive.
+The private path for a process has the form: \\Private\\13579BDF\\
+where 13579BDF is the identity of the process.
+@param aDrive The drive for which the private path is to be created.
+Specify a drive in the range EDriveA to EDriveZ for drives
+			  A to Z respectively.
+@return KErrNone, if successful, otherwise one of the other system-wide
+error codes.
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsCreatePrivatePath, MODULEUID, Handle(), aDrive);
+	TInt r = SendReceive(EFsCreatePrivatePath,TIpcArgs(aDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsCreatePrivatePathReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TVersion RFs::Version() const
+/**
+Gets the client side version number.
+@return The client side version number.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsVersion, MODULEUID, Handle());
+	TVersion r = TVersion(KF32MajorVersionNumber,KF32MinorVersionNumber,KF32BuildVersionNumber);
+	TRACERET3(UTF::EBorder, UTraceModuleEfsrv::EFsVersionReturn, MODULEUID, r.iMajor, r.iMinor, r.iBuild);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::AddFileSystem(const TDesC& aFileName) const
+/**
+Adds a file system to the file server.
+After calling this function, use MountFileSystem() to mount the file system
+on a drive.
+@param aFileName The name of the file system .FSY to install. Its full path can
+				 be specified.
+@return KErrNone, if successful, otherwise one of the other system-wide
+error codes.
+@capability DiskAdmin
+@see RFs::MountFileSystem
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsAddFileSystem, MODULEUID, Handle(), aFileName);
+	RLoader loader;
+	TInt r = loader.Connect();
+	if (r==KErrNone)
+		{
+		r = loader.SendReceive(ELoadFileSystem, TIpcArgs(0, &aFileName, 0));
+		loader.Close();
+		}
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsAddFileSystemReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::RemoveFileSystem(const TDesC& aFileSystemName) const
+/**
+Removes the specified file system.
+@param aFileSystemName The fullname of the file system, as returned from
+a call to FileSystemName(), to be removed.
+@return KErrNone, if successful;
+KErrNotFound, if aFileSystemName is not found;
+otrherwise one of the other system-wide error codes.
+@capability DiskAdmin
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsRemoveFileSystem, MODULEUID, Handle(), aFileSystemName);
+	TInt r = SendReceive(EFsRemoveFileSystem,TIpcArgs(&aFileSystemName));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsRemoveFileSystemReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::MountFileSystem(const TDesC& aFileSystemName,TInt aDrive) const
+/**
+Mounts a file system on a drive.
+The file system must first have been added to the file server using AddFileSystem().
+The drive is mounted as asynchronous, i.e operations on it don't block the file server and other drives;
+@param aFileSystemName The fullname of the file system, as returned from  a call to FileSystemName().
+@param aDrive          The drive on which the file system is to be mounted; this can be one of the values defined by TDriveNumber.
+@return KErrNone if successful, otherwise one of the other system-wide error codes.
+@capability DiskAdmin
+@see RFs::AddFileSystem
+@see RFs::FileSystemName
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystem1, MODULEUID, Handle(), aFileSystemName, aDrive);
+	TInt r = SendReceive(EFsMountFileSystem,TIpcArgs(&aFileSystemName,aDrive,NULL,EFalse));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystem1Return, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::MountFileSystem(const TDesC& aFileSystemName,TInt aDrive, TBool aIsSync) const
+/**
+Mounts a file system on a specified drive.
+The file system must first have been added to the file server using AddFileSystem().
+Depending on the aIsSync parameter, the drive can be mounted as synchronous or asynchronous.
+Asynchronous drive has its own processing thread, i.e operations on it don't block the file server and other drives;
+Synchronous drives' requests are being processed by the main file server thread and there is a possibility to block it along with
+all operations on other drives. Mounting a drive as synch. makes a sense if the operations on such drive are very fast e.g. this is an
+internal RAM or ROFS drive.
+@param aFileSystemName The fullname of the file system, as returned from a call to FileSystemName().
+@param aDrive          The drive number on which the file system is to be mounted; this can be one of the values defined by TDriveNumber.
+@param aIsSync         if ETrue  the drive will be mounted as synchronous one;
+if EFalse the drive will be mounted as Asynchronous.
+@return KErrNone if successful, otherwise one of the other system-wide error codes.
+@capability DiskAdmin
+@see RFs::AddFileSystem
+@see RFs::FileSystemName
+*/
+	{
+	TRACEMULT4(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystem2, MODULEUID, Handle(), aFileSystemName, aDrive, aIsSync);
+	TInt r = SendReceive(EFsMountFileSystem,TIpcArgs(&aFileSystemName,aDrive,NULL,aIsSync));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystem2Return, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::MountFileSystem(const TDesC& aFileSystemName,const TDesC& aExtensionName,TInt aDrive)
+/**
+Mounts a file system on a drive, and the specified extension.
+The file system must first have been added to the file server using AddFileSystem().
+The drive is mounted as asynchronous, i.e operations on it don't block the file server and other drives;
+@param aFileSystemName The fullname of the file system, as returned from a call to FileSystemName().
+@param aExtensionName  The filename of the extension.
+@param aDrive          The drive on which the file system is to be mounted; this can be one of the values defined by TDriveNumber.
+@return KErrNone if successful, otherwise one of the other system-wide error codes.
+@capability DiskAdmin
+@see RFs::AddFileSystem
+@see RFs::FileSystemName
+*/
+	{
+	TRACEMULT4(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystem3, MODULEUID, Handle(), aFileSystemName, aExtensionName, aDrive);
+	TInt r = SendReceive(EFsMountFileSystem,TIpcArgs(&aFileSystemName,aDrive,&aExtensionName,EFalse));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystem3Return, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::MountFileSystem(const TDesC& aFileSystemName,const TDesC& aExtensionName,TInt aDrive, TBool aIsSync)
+/**
+Mounts a file system on a drive, and the specified extension.
+The file system must first have been added to the file server using AddFileSystem().
+Depending on the aIsSync parameter, the drive can be mounted as synchronous or asynchronous.
+Asynchronous drive has its own processing thread, i.e operations on it don't block the file server and other drives;
+Synchronous drives' requests are being processed by the main file server thread and there is a possibility to block it along with
+all operations on other drives. Mounting a drive as synch. makes  sense if the operations on such drive are very fast e.g. this is an
+internal RAM or ROFS drive.
+@param aFileSystemName The fullname of the file system, as returned from a call to FileSystemName().
+@param aExtensionName  The filename of the extension.
+@param aDrive          The drive on which the file system is to be mounted; this can be one of the values defined by TDriveNumber.
+@param aIsSync         if ETrue  the drive will be mounted as synchronous one;
+if EFalse the drive will be mounted as Asynchronous.
+@return KErrNone if successful, otherwise one of the other system-wide error codes.
+@capability DiskAdmin
+@see RFs::AddFileSystem
+@see RFs::FileSystemName
+*/
+	{
+	TRACEMULT5(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystem4, MODULEUID, Handle(), aFileSystemName, aExtensionName, aDrive, aIsSync);
+	TInt r = SendReceive(EFsMountFileSystem,TIpcArgs(&aFileSystemName,aDrive,&aExtensionName,aIsSync));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystem4Return, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::MountFileSystemAndScan(const TDesC& aFileSystemName,TInt aDrive,TBool& aIsMountSuccess) const
+/**
+Mounts a file system on a drive, and performs a scan on that drive.
+The file system must first have been added to the file server using AddFileSystem().
+Note that the scan is done only if the mount is successful.
+The drive is mounted as asynchronous, i.e operations on it don't block the file server and other drives;
+@param aFileSystemName The fullname of the file system, as returned from a call to FileSystemName().
+@param aDrive          The drive on which the file system is to be mounted; this can be one of the values defined by TDriveNumber.
+@param aIsMountSuccess On return, set to: ETrue, if the  if the mount is successful, set to EFalse otherwise.
+@return KErrNone if successful, otherwise one of the other system-wide error codes, reflecting the failure of the mount operation.
+@capability DiskAdmin
+@see RFs::TDriveNumber
+@see RFs::AddFileSystem
+@see RFs::FileSystemName
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystemAndScan1, MODULEUID, Handle(), aFileSystemName, aDrive);
+	aIsMountSuccess=EFalse;
+	TPckg<TInt> pckg(aIsMountSuccess);
+	TInt r = SendReceive(EFsMountFileSystemScan,TIpcArgs(&aFileSystemName,aDrive,NULL,&pckg));
+	TRACERET2(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystemAndScan1Return, MODULEUID, r, aIsMountSuccess);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::MountFileSystemAndScan(const TDesC& aFileSystemName,const TDesC& aExtensionName,TInt aDrive,TBool& aIsMountSuccess) const
+/**
+Mounts a file system on a drive, and the specified extension and performs a scan on that drive.
+The file system must first have been added to the file server,
+using AddFileSystem().
+Note that the scan is done only if the mount is successful.
+The operation is asynchronous, i.e other concurrent file server operations can continue.
+@param aFileSystemName The fullname of the file system, as returned from
+a call to FileSystemName().
+@param aExtensionName  The filename of the extension.
+@param aDrive          The drive on which the file system is to be mounted;
+this can be one of the values defined by TDriveNumber.
+@param aIsMountSuccess On return, set to: ETrue, if the  if the mount
+is successful, set to EFalse otherwise.
+@return KErrNone if successful, otherwise one of the other system-wide
+error codes, reflecting the failure of the mount operation.
+@capability DiskAdmin
+@see RFs::TDriveNumber
+@see RFs::AddFileSystem
+@see RFs::FileSystemName
+*/
+	{
+	TRACEMULT5(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystemAndScan2, MODULEUID,
+		Handle(), aFileSystemName, aExtensionName, aDrive, aIsMountSuccess);
+	aIsMountSuccess=EFalse;
+	TPckg<TInt> pckg(aIsMountSuccess);
+	TInt r = SendReceive(EFsMountFileSystemScan,TIpcArgs(&aFileSystemName,aDrive,&aExtensionName,&pckg));
+	TRACERET2(UTF::EBorder, UTraceModuleEfsrv::EFsMountFileSystemAndScan2Return, MODULEUID, r, aIsMountSuccess);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::DismountFileSystem(const TDesC& aFileSystemName,TInt aDrive) const
+/**
+Dismounts the file system from the specified drive.
+@param aFileSystemName The fullname of the file system, as returned from
+a call to FileSystemName().
+@param aDrive          The drive from which the file system is to be dismounted.
+@return KErrNone, if successful;
+KErrNotFound, if aFileSystemName is not found;
+KErrNotReady, if the drive does not have a file	system mounted on it;
+KErrInUse, if the drive has a resource open	on it;
+KErrAccessDenied, if there is an attempt to dismount a ROM file system,
+a substituted drive, or the drive which is the default drive;
+		KErrArgument, if the specified drive value is outsdide of the valid range.
+		KErrPermissionDenied, if the client does not have the necessary capabilities
+		to dismount the file system.
+@capability DiskAdmin
+@see RFs::FileSystemName
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsDismountFileSystem, MODULEUID, Handle(), aFileSystemName, aDrive);
+	TInt r = SendReceive(EFsDismountFileSystem,TIpcArgs(&aFileSystemName,aDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsDismountFileSystemReturn, MODULEUID, r);
+	return r;
+	}
+/**
+Gets the name of the file system mounted on the specified drive.
+The function can be called before calling DismountFileSystem().
+@param aName  On successful return, contains the name of the file system.
+@param aDrive The drive for which the file system name is required.
+@return KErrNone, if successful;
+KErrNotFound if aFileSystemName is not found, or the drive does not have a file	system mounted on it;
+KErrArgument, if the drive value is outside the valid range, i.e. zero to KMaxDrives-1 inclusive.
+@see RFs::DismountFileSystem
+*/
+EFSRV_EXPORT_C TInt RFs::FileSystemName(TDes& aName,TInt aDrive) const
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsFileSystemName, MODULEUID, Handle(), aDrive);
+	//-- ipc argument "-1" here is to indicate legacy FileSystemName() API
+TInt r = SendReceive(EFsFileSystemName,TIpcArgs(&aName, aDrive, -1));
+	TRACERETMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsFileSystemNameReturn, MODULEUID, r, aName);
+	return r;
+	}
+/**
+Get one of the supported file system names on a specified drive. This API can be used for enumerating
+file systems that can be recognised and mounted automatically, without user's interaction.
+If the automatic recognition and mountng some known file systems is supported on the specified drive, there
+shall be at least 2 names in the list. For example "FAT" and "exFAT".
+If "automatic file system recognising" feature is not supported, the list will consist of just one name, and
+this will be the name returned by RFs::FileSystemName() API.
+@param  aName           On successful return, contains the name of the file system that correspond to the aFsEnumerator value.
+m@param aDrive          The drive number
+@param  aFsEnumerator   The supported file system enumerator. can be:
+KRootFileSystem a special value; in this case the returned name will be the same as obtained by FileSystemName()
+0,1,2... integer values specifying the sequential number of supported filesystem. See the return error code.
+@return KErrNone        success, aName contains a valid name for the supported file system number "aFsEnumerator" on this drive.
+KErrNotFound    the end of the supported file names list; "aFsEnumerator-1" was the last correct value
+KErrArgument    incorrect arguments
+@see FileSystemName()
+@see KRootFileSystem
+*/
+EFSRV_EXPORT_C TInt RFs::SupportedFileSystemName(TDes& aName, TInt aDrive, TInt aFsEnumerator) const
+{
+	if(aFsEnumerator < 0)
+return KErrArgument; //-- see RFs::FileSystemName(). "-1" is a reserved value
+TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsFileSystemName, MODULEUID, Handle(), aDrive);
+TInt r = SendReceive(EFsFileSystemName,TIpcArgs(&aName, aDrive, aFsEnumerator));
+	TRACERETMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsFileSystemNameReturn, MODULEUID, r, aName);
+	return r;
+}
+EFSRV_EXPORT_C TInt RFs::AddExtension(const TDesC& aFileName)
+/**
+Loads the specified extension.
+@param aFileName The file name of the extension
+@return KErrNone, if successful; otherwise one of the other system wide error codes.
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsAddExtension, MODULEUID, Handle(), aFileName);
+	RLoader loader;
+	TInt r = loader.Connect();
+	if (r==KErrNone)
+		{
+		r = loader.SendReceive(ELoadFSExtension, TIpcArgs(0, &aFileName, 0));
+		loader.Close();
+		}
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsAddExtensionReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::MountExtension(const TDesC& aExtensionName,TInt aDrive)
+/**
+Mounts the the specified extension.
+The extension must first have been loaded using AddExtension().
+@param aExtensionName  The fullname of the extension, as returned from
+a call to ExtensionName().
+@param aDrive          The drive on which the extension is to be mounted;
+@return KErrNone if successful;
+KErrNotFound, if the extension cannot be found;
+otherwise one of the other system-wide error codes.
+@see RFs::ExtensionName
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsMountExtension, MODULEUID, Handle(), aExtensionName, aDrive);
+	TInt r = SendReceive(EFsMountExtension,TIpcArgs(&aExtensionName,aDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsMountExtensionReturn, MODULEUID, r);
+	return r;
+	}
+/**
+Dismounts the specified extension.
+@param aExtensionName  The fullname of the extension, as returned from a call to ExtensionName().
+@param aDrive          The drive this extension is to be dismounted from.
+@return KErrNone if successful;
+KErrNotFound    if the extension cannot be found;
+otherwise one of the other system-wide error codes.
+@see RFs::ExtensionName
+*/
+EFSRV_EXPORT_C TInt RFs::DismountExtension(const TDesC& aExtensionName,TInt aDrive)
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsDismountExtension, MODULEUID, Handle(), aExtensionName, aDrive);
+	TInt r = SendReceive(EFsDismountExtension,TIpcArgs(&aExtensionName,aDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsDismountExtensionReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::RemoveExtension(const TDesC& aExtensionName)
+/**
+Removes the specified extension.
+@param aExtensionName The fullname of the extension, as returned from
+a call to ExtensionName().
+@return KErrNone, if successful;
+KErrNotFound, if aExtensionName is not found;
+otrherwise one of the other system-wide error codes.
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsRemoveExtension, MODULEUID, Handle(), aExtensionName);
+	TInt r = SendReceive(EFsRemoveExtension,TIpcArgs(&aExtensionName));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsRemoveExtensionReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::ExtensionName(TDes& aExtensionName,TInt aDrive,TInt aPos)
+/**
+Gets the name of the extension on the specified drive at the specified position
+in the extension hierarchy.
+@param aExtensionName  On successful return, contains the name of the extension.
+@param aDrive          The drive for which the extension name is required.
+@param aPos            The position of the extension in the extension hierarchy.
+@return KErrNone, if successful;
+KErrNotFound if the extension name is not found;
+*/
+	{
+	TRACEMULT4(UTF::EBorder, UTraceModuleEfsrv::EFsExtensionName, MODULEUID, Handle(), aExtensionName, aDrive, aPos);
+	TInt r = SendReceive(EFsExtensionName,TIpcArgs(&aExtensionName,aDrive,aPos));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsExtensionNameReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::RemountDrive(TInt aDrive,const TDesC8* aMountInfo,TUint aFlags)
+/**
+Forces a remount of the specified drive.
+@param aDrive     The drive for which a remount is to be forced.
+@param aMountInfo Information passed down to the media driver. The meaning of
+this information depends on the media driver, for example,
+keys for secure areas.
+@param aFlags     When the flag is set to
+0x00000001 - Used to simulate ejecting and re-inserting the media.
+0x80000000 - used to force the media driver for the specified logical
+drive to be closed and reopened.
+@return KErrNone if successful, otherwise one of
+the other system wide error codes.
+*/
+	{
+	TRACE4(UTF::EBorder, UTraceModuleEfsrv::EFsRemountDrive, MODULEUID, Handle(), aDrive, aMountInfo, aFlags);
+	TInt r = SendReceive(EFsRemountDrive,TIpcArgs(aDrive,aMountInfo,aFlags));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsRemountDriveReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C void RFs::NotifyChange(TNotifyType aType,TRequestStatus& aStat)
+/**
+Requests a notification of change to files or directories.
+Changes are notified either:
+1. following any change in the file system
+or
+2. only following the addition or deletion of a directory entry, or after
+a disk has been formatted or changed.
+Such notification is useful for programs that maintain displays
+of file lists which must be dynamically updated. The alternative is to do
+no updating, or to perform periodic monitoring for change, which
+is inefficient.
+This is an asynchronous request and, as such, results in precisely one signal
+to the request status passed as a parameter. To avoid missing any change, this
+request should be issued before the first file list is constructed. When
+the request completes, a new request should be issued before the next file
+list is constructed. When the file server session is
+closed, this request is implicitly cancelled.
+Call NotifyChangeCancel() to explicitly cancel a notification request.
+@param aType Indicates the kind of change that should result in notification.
+			 For example:
+			 ENotifyEntry causes notification only when an entry is added or
+deleted, or when a disk is formatted or changed;
+ENotifyAll causes notification following any type of change, such
+as when a file is written to, or when a file's attributes
+are changed.
+@param aStat The request status.
+This is set to KErrNone on completion, otherwise one of the other
+system-wide error codes.
+*/
+	{
+	TRACE3(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyChange1, MODULEUID, Handle(), aType, &aStat);
+	aStat=KRequestPending;
+	// for backward compatibility
+	TNotifyType type = (aType == 0 ? ENotifyEntry : aType);
+	RSessionBase::SendReceive(EFsNotifyChange, TIpcArgs(type,&aStat) , aStat );
+	//This call is to synchronise with the file server when this functions stack varibles can go out of scope
+	SendReceive(EFsSynchroniseDriveThread, TIpcArgs(-1));
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyChange1Return, MODULEUID);
+	}
+EFSRV_EXPORT_C void RFs::NotifyChange(TNotifyType aType,TRequestStatus& aStat,const TDesC& aPathName)
+/**
+Requests a notification of change to files or directories, allowing
+a directory/file path to be specified.
+Changes are notified either:
+1. following any change in the file system
+or
+2. only following the addition or deletion of a directory entry, or after
+a disk has been formatted or changed.
+Such notification is useful for programs that maintain displays
+of file lists which must be dynamically updated. The alternative is to do
+no updating, or to perform periodic monitoring for change, which
+is inefficient.
+This is an asynchronous request and, as such, results in precisely one signal
+to the request status passed as a parameter. To avoid missing any change, this
+request should be issued before the first file list is constructed. When
+the request completes, a new request should be issued before the next file
+list is constructed. When the file server session is
+closed, this request is implicitly cancelled.
+Call NotifyChangeCancel() to explicitly cancel a notification request.
+@param aType     Indicates the kind of change that should result in
+notification. For example:
+			     ENotifyEntry causes notification only when an entry is added
+			     or deleted, or when a disk is formatted or changed;
+ENotifyAll causes notification following any type of change,
+such as when a file is written to, or when a file's attributes
+are changed.
+@param aStat     The request status.
+This is set to KErrNone on completion, otherwise one of
+the other system-wide error codes.
+@param aPathName The directory or file for which notification is required. By
+specifying a drive as a wildcard, for example
+"?:\\Resource\\apps\\", or
+				 "*:\\Resource\\apps\\", a client can ask to be notified of changes
+				 to a given directory on any drive.
+				 As with all directory paths aPathName must be terminated with '\\',
+				 Please refer to "Structure of paths and filenames" section in the
+				 Symbian OS Library.
+@capability Dependent If aName is /Sys then AllFiles capability is required.
+@capability Dependent If aName begins with /Private and does not match this process' SID
+					  then AllFiles capability is required.
+*/
+	{
+	TRACEMULT4(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyChange2, MODULEUID, Handle(), (TUint) aType, (TUint) &aStat, aPathName);
+	aStat=KRequestPending;
+	// for backward compatibility
+	TNotifyType type = (aType == 0 ? ENotifyEntry : aType);
+	RSessionBase::SendReceive(EFsNotifyChangeEx,TIpcArgs(type,&aPathName,&aStat),aStat);
+	//This call is to synchronise with the file server when this functions stack varibles can go out of scope
+	SendReceive(EFsSynchroniseDriveThread, TIpcArgs(-1));
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyChange2Return, MODULEUID);
+	}
+EFSRV_EXPORT_C void RFs::NotifyChangeCancel()
+/**
+Cancels all outstanding requests for notification of change
+to files or directories.
+All outstanding requests complete with KErrCancel.
+Note that this is a synchronous function.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyChangeCancel1, MODULEUID, Handle());
+	RSessionBase::SendReceive(EFsNotifyChangeCancel);
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyChangeCancel1Return, MODULEUID);
+	}
+EFSRV_EXPORT_C void RFs::NotifyChangeCancel(TRequestStatus& aStat)
+/**
+Cancels the specific request for notification of change
+to files or directories.
+The outstanding request completes with KErrCancel.
+Note that this is an asynchronous function.
+@param aStat The request status object associated with the request
+to be cancelled. Note that the function does not change
+this parameter.
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyChangeCancel2, MODULEUID, Handle(), &aStat);
+	if (aStat==KRequestPending)			//	May be better to ASSERT this?
+		SendReceive(EFsNotifyChangeCancelEx,TIpcArgs(&aStat));
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyChangeCancel2Return, MODULEUID);
+	}
+EFSRV_EXPORT_C void RFs::NotifyDiskSpace(TInt64 aThreshold,TInt aDrive,TRequestStatus& aStat)
+/**
+Requests notification when the free disk space on the specified
+drive crosses the specified threshold value.
+The threshold is crossed if free disk space increases to a value above
+the threshold value or decreases to a value below the threshold value.
+This is an asynchronous request that completes if any of the
+following events occur:
+1. the threshold is crossed
+2. any drive is formatted
+3. there is a media change on any socket
+4. power up
+5. the scandrive utility is run on any drive
+5. the specified threshold value is outside its limits
+7. the outstanding request is cancelled.
+Note that free disk space notification is not supported for
+drives using remote file systems.
+@param aThreshold The threshold value. This must be greater than zero and less
+than the total size of the disk.
+@param aDrive     The drive number. This is an explicit drive defined by one of
+				  the TDriveNumber enum values or the value
+				  KDefaultDrive. If KDefaultDrive is specified, then
+the drive monitored is the session path drive.
+@param aStat      The request status object. On request completion, contains:
+				  KErrNone, if the threshold value is crossed, if any drive is
+formatted, if there is a media change on any socket, if there is a power up or
+				  if the scandrive utility is run on any drive;
+				  KErrCancel, if the outstanding request is cancelled by a call to
+NotifyDiskSpaceCancel();
+KErrArgument, if the threshold value is outside its limits.
+@see TDriveNumber
+*/
+	{
+	TRACE5(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDiskSpace, MODULEUID,
+		Handle(), I64LOW(aThreshold),I64HIGH(aThreshold), aDrive,(TUint) &aStat);
+	aStat=KRequestPending;
+	TPtrC8 tBuf((TUint8*)&aThreshold,sizeof(TInt64));
+	RSessionBase::SendReceive(EFsNotifyDiskSpace,TIpcArgs(&tBuf,aDrive,&aStat), aStat);
+	//This call is to synchronise with the driver thread as corresponding cancel function (NotifyDiskSpaceCancel)
+	//is synchronous, so it can complete before this notify request has even been added to TDiskSpaceQue.
+	//This call guarantees that the notify request has been added to queue.
+	SendReceive(EFsSynchroniseDriveThread, TIpcArgs(aDrive));
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDiskSpaceReturn, MODULEUID);
+	}
+EFSRV_EXPORT_C void RFs::NotifyDiskSpaceCancel(TRequestStatus& aStat)
+/**
+Cancels a specific outstanding request for free disk space
+notification.
+The outstanding request completes with KErrCancel.
+@param aStat The request status object identified with the original
+			 notification request.
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDiskSpaceCancel1, MODULEUID, Handle(), &aStat);
+	if(aStat==KRequestPending)
+		SendReceive(EFsNotifyDiskSpaceCancel,TIpcArgs(&aStat));
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDiskSpaceCancel1Return, MODULEUID);
+	}
+EFSRV_EXPORT_C void RFs::NotifyDiskSpaceCancel()
+/**
+Cancels all outstanding requests for free disk space
+notification.
+Outstanding requests complete with KErrCancel.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDiskSpaceCancel2, MODULEUID, Handle());
+	SendReceive(EFsNotifyDiskSpaceCancel,TIpcArgs(NULL));
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDiskSpaceCancel2Return, MODULEUID);
+	}
+EFSRV_EXPORT_C TInt RFs::DriveList(TDriveList& aList) const
+/**
+Gets a list of the available (not remote and non hidden) drives.
+The drive list consists of an array of 26 bytes. Array index zero corresponds
+to drive A, index one equals B etc.
+Each byte with a non zero value signifies that the corresponding drive is available
+to the system. In the case of removable media, RFs::Drive should be used to determine
+whether the media is inserted or not.
+The local file system always reserves drive letters A through I.
+Drive letter Z is always used for the ROM which means that letters J through Y
+are available to be used by SetSubst() or for redirecting.
+@param aList On return, contains a list of drive attributes (only the first 8 bits) for the available non-remote and non-hidden drives.
+@return KErrNone, successful, otherwise one of the other system-wide error codes.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsDriveList1, MODULEUID, Handle());
+	TInt r = SendReceive(EFsDriveList,TIpcArgs(&aList, KDriveAttExclude|KDriveAttRemote|KDriveAttHidden));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsDriveList1Return, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::DriveList(TDriveList& aList, TUint aFlags) const
+/**
+Gets a list of the available drives that match a combination of drive attributes,specified in aFlags.
+This combination may include,exclude or exclusively specify the attributes that that drives to be returned
+should match.
+The drive list consists of an array of 26 bytes. Array index zero corresponds
+to drive A, index one equals B etc.
+Each byte with a non zero value signifies that the corresponding drive is available
+to the system. In the case of removable media, RFs::Drive should be used to determine
+whether the media is inserted or not.
+The local file system always reserves drive letters A through I.
+Drive letter Z is always used for the ROM which means that letters J through Y
+are available to be used by SetSubst() or for redirecting.
+@param aList On return, contains a list of available drives that qualify aFlags.
+@param aFlags A combination of drive attributes that drives to be returned must qualify.
+@return KErrNone, successful, otherwise one of the other system-wide error codes;
+		KErrArgument, If aFlags contains an invalid attribute combination.
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsDriveList2, MODULEUID, Handle(), aFlags);
+	TInt r = SendReceive(EFsDriveList,TIpcArgs(&aList,aFlags));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsDriveList2Return, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Drive(TDriveInfo& anInfo,TInt aDrive) const
+/**
+Gets information about a drive and the medium mounted on it.
+Note that Volume() can also be used to give information about the drive and
+the volume mounted on it. These two functions are separate because, while
+the characteristics of a drive cannot change, those of a
+volume can, by mounting different media, reformatting etc.
+@param anInfo On return, contains information describing the drive
+			  and the medium mounted on it. The value of TDriveInfo::iType
+			  shows whether the drive contains media.
+@param aDrive The drive for which information is requested.
+Specify KDefaultDrive for the session default drive.
+			  Specify a drive in the range EDriveA to EDriveZ for drives
+			  A to Z respectively.
+@return       KErrNone, if successful, otherwise one of the other
+system-wide error codes.
+@see RFs::Volume
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsDrive, MODULEUID, Handle(), aDrive);
+	TPckg<TDriveInfo> m(anInfo);
+	TInt r = SendReceive(EFsDrive,TIpcArgs(&m,aDrive));
+	TRACERET4(UTF::EBorder, UTraceModuleEfsrv::EFsDriveReturn, MODULEUID, r, anInfo.iDriveAtt, anInfo.iMediaAtt, anInfo.iType);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Volume(TVolumeInfo& aVol,TInt aDrive) const
+/**
+Gets volume information for a formatted device.
+This function provides additional information to that given by Drive(),
+including the volume label, if set, and the amount of free space on the
+disk.
+Note, use Drive() to get information about the drive without reference to
+a volume. These two functions are separate because, while the characteristics
+of a drive cannot change, those of a volume can, by mounting different media,
+reformatting etc. A volume may not even be present if the media is removable.
+@param aVol   On return, contains the volume information.
+@param aDrive The drive which contains the media for which volume information is to be displayed.
+Specify a drive in the range EDriveA to EDriveZ for drives A to Z respectively.
+The default drive is the session default drive KDefaultDrive.
+@return KErrNone, if successful;
+KErrNotReady, if the drive contains no media;
+otherwise one of the other system-wide error codes.
+@see RFs::Drive
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsVolume1, MODULEUID, Handle(), aDrive);
+	TPckg<TVolumeInfo> v(aVol);
+TInt r = SendReceive(EFsVolume,TIpcArgs(&v,aDrive,NULL));
+	TRACE7(UTF::EBorder, UTraceModuleEfsrv::EFsVolume1Return, MODULEUID,
+		r, aVol.iUniqueID, I64LOW(aVol.iSize), I64HIGH(aVol.iSize),
+		I64LOW(aVol.iFree), I64HIGH(aVol.iFree), aVol.iFileCacheFlags);
+	return r;
+	}
+/**
+Gets volume information for a formatted device asynchronously.
+@see TInt RFs::Volume(TVolumeInfo& aVol,TInt aDrive) for the synchronous version.
+"Asynchronously" corresponds to the amount of free space on the volume in TVolumeInfo::iFree.
+I.e. this function returns the _current_ amount of free space on the volume, which can be changing due to some
+filesystems' activities. For example, some filesystems can be performing free space calculations in the background.
+Comparing to the RFs::Volume(TVolumeInfo& aVol,TInt aDrive), this method doesn't block the client until background filesystem
+activity finishes, which can be useful in some situations.
+@param aVol   On return, contains the volume information with the _current_ value in the TVolumeInfo::iFree.
+@param aDrive Drive number to query. Specify a drive in the range EDriveA to EDriveZ for drives A to Z respectively.
+@param aStat  request status. At present is used just for indication of the asynchronous version and gets immediately completed, so there is no reason to analyse its value.
+@publishedPartner
+@prototype
+*/
+EFSRV_EXPORT_C void RFs::Volume(TVolumeInfo& aVol,TInt aDrive, TRequestStatus& aStat) const
+{
+	TRACE3(UTF::EBorder, UTraceModuleEfsrv::EFsVolume2, MODULEUID, Handle(), aDrive, &aStat);
+	TPckg<TVolumeInfo> v(aVol);
+aStat=KRequestPending;
+RSessionBase::SendReceive(EFsVolume,TIpcArgs(&v,aDrive,&aStat), aStat);
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsVolume2Return, MODULEUID);
+}
+EFSRV_EXPORT_C TInt RFs::SetVolumeLabel(const TDesC& aName,TInt aDrive)
+/**
+Sets the label for a volume.
+Note that similar to file names, volume labels can be set with unicode characters.
+However it may not be recognized properly if correct code page is not
+loaded or it is mounted onto a system that does not support DBCS volume
+labels
+@param aName  The volume label.
+@param aDrive The drive containing the media whose label is to be set.
+	          Specify a drive in the range EDriveA to EDriveZ for
+			  drives A to Z.
+The default drive is the session default drive KDefaultDrive.
+@return KErrNone, if successful;
+KErrNotReady, if the drive contains no media;
+otherwise one of the other system-wide error codes.
+@capability DiskAdmin
+@see TDriveNumber
+@see TVolumeInfo::iName
+@see RFs::Volume
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsSetVolumeLabel, MODULEUID,
+		Handle(), aName, aDrive);
+	TInt r = SendReceive(EFsSetVolume,TIpcArgs(&aName,aDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetVolumeLabelReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Subst(TDes& aPath,TInt aDrive) const
+/**
+Gets the path assigned to a drive letter by an earlier call to SetSubst().
+To find out whether a drive letter has been substituted, first get the drive
+information, using Drive(), and then test the value of the KDriveAttSubsted bit
+provided by TDriveInfo::iDriveAtt.
+@param aPath  On return, contains the path which has been assigned to the
+drive. If the drive letter has not been substituted, this argument
+returns an empty descriptor.
+@param aDrive The drive which is the subject of the enquiry. Specify a number
+			  in the range 0 (EDriveA) to 25 (>EDriveZ) for drives
+			  A to Z. The default drive is the session default
+drive KDefaultDrive.
+@return KErrNone, if successful, otherwise one of the other
+system-wide error codes.
+@see RFs::SetSubst
+@see TDriveInfo
+@see RFs::Drive
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsSubst, MODULEUID, Handle(), aPath, aDrive);
+	TInt r = SendReceive(EFsSubst,TIpcArgs(&aPath,aDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSubstReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::SetSubst(const TDesC& aPath,TInt aDrive)
+/**
+Assigns a path to a drive letter.
+Whenever that drive letter is used, it will be translated into a reference
+to the path specified here. To	clear a drive substitution, specify an empty
+descriptor for aPath.
+Note that the substituted path is text-only. Its components need not
+be syntactically correct, nor must they be valid at the time the substitution
+is set. Any component may be deleted, removed or unmounted while the
+substitution is set.
+@param aPath  The path to be assigned to the drive letter. If a drive letter
+			  is specified in the path, it must not itself be substituted or
+			  redirected, or the function will return an error. If no drive is
+			  specified, the drive contained in the default session path is
+			  used, and if no path is specified, the default session path is
+			  used. If a filename or extension is included in the  path,
+			  the function will return an error. Therefore, the final component
+			  in the path must have a trailing backslash to indicate that it is
+			  a directory.
+@param aDrive The drive to which a path is to be assigned. Specify a number
+			  in the range 0 (EDriveA) to 25 (EDriveZ) for drives
+			  A to Z. Must not be local, ROM, or redirected, otherwise an
+error is returned. May be substituted, but only if the function
+is being used	to clear the substitution. If the same drive is
+specified in the path, the function will return an error.
+The default drive is the session default drive
+			  KDefaultDrive.
+@return KErrNone, if successful; otherwise one of the other	system-wide
+error codes.
+@capability DiskAdmin
+@capability Dependent If aPath is /Sys then Tcb capability is required.
+@capability Dependent If aPath begins with /Private and does not match this process' SID
+					  then AllFiles capability is required.
+@capability Dependent If aPath is /Resource then Tcb capability is required.
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsSetSubst, MODULEUID, Handle(), aPath, aDrive);
+	TInt r = SendReceive(EFsSetSubst,TIpcArgs(&aPath,aDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetSubstReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::RealName(const TDesC& aName,TDes& aResult) const
+/**
+Gets the real name of a file.
+This is used in circumstances where a file system needs to
+mangle Symbian OS natural names so that it can store them on that file
+system.
+@param aName   Contains the name by which the file is normally referred.
+@param aResult On return, contains the real name of the file, comprising the
+full path, including the drive letter.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@capability Dependent If aName is /Sys then AllFiles capability is required.
+@capability Dependent If aName begins with /Private and does not match this process' SID
+					  then AllFiles capability is required.
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsRealName, MODULEUID, Handle(), aName);
+	TInt r = SendReceive(EFsRealName,TIpcArgs(&aName,&aResult));
+	TRACERETMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsRealNameReturn, MODULEUID, r, aResult);
+	return r;
+	}
+/**
+Gets the serial number of media.
+Only local drive is allowed. Substed drive number will return KErrNotSupported.
+@param aSerialNum Contains serial number on successful return.
+@param aDrive     Drive number.
+@return KErrNone            if successful;
+KErrNotSupported    if media doesn't support serial number (e.g. substed drives);
+KErrBadName         if drive number is invalid;
+otherwise one of system-wide error codes.
+@see TMediaSerialNumber
+*/
+EFSRV_EXPORT_C TInt RFs::GetMediaSerialNumber(TMediaSerialNumber& aSerialNum, TInt aDrive)
+{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsGetMediaSerialNumber, MODULEUID, Handle(), aDrive);
+TInt r = SendReceive(EFsGetMediaSerialNumber, TIpcArgs(&aSerialNum, aDrive));
+	TRACERETMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsGetMediaSerialNumberReturn, MODULEUID, r, aSerialNum);
+	return r;
+}
+EFSRV_EXPORT_C TInt RFs::SessionPath(TDes& aPath) const
+/**
+Gets the session path.
+When a client connects to the file server, its session path is initialised to
+the system default path. The session path of an existing client can only be
+changed by this function.
+@param aPath On return, contains the session path, including a trailing
+backslash.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsSessionPath, MODULEUID, Handle());
+	TInt r = SendReceive(EFsSessionPath,TIpcArgs(&aPath));
+	TRACERETMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsSessionPathReturn, MODULEUID, r, aPath);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::SetSessionPath(const TDesC& aPath)
+/**
+Sets the session path for the current file server client.
+When the client first connects to the file server, its session path
+is initialised to the system default path.
+Note that the session path is text-only. It does not cause any locking.
+Thus, although the path must be syntactically correct, its components
+do not need to be valid at the time the path is set, and any component may be
+deleted, removed or unmounted while the path is set.
+@param aPath The new session path. Consists of a drive and path. Normally, a
+drive should be specified, but if not, the drive specified in
+the existing session path is preserved. If a file is specified,
+then the function fails and returns an error code. Therefore,
+the final component in the path must have a trailing backslash
+to indicate that it is a directory. All components of the
+path must be syntactically correct, for example, wildcard
+characters and double backslashes are not allowed in any
+part of it.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@capability Dependent If aPath is /Sys then AllFiles capability is required.
+@capability Dependent If aPath begins with /Private and does not match this process' SID
+					  then AllFiles capability is required.
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsSetSessionPath, MODULEUID, Handle(), aPath);
+	TInt r = SendReceive(EFsSetSessionPath,TIpcArgs(&aPath));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetSessionPathReturn, MODULEUID, r);
+	return r;
+	}
+/**
+Makes a directory.
+It should be a sub-directory of an existing	directory and its name should be
+unique within its parent directory, otherwise the function returns error code KErrAlreadyExists.
+Note that if a filename is specified in the argument, it is	ignored.
+Therefore, there should be a trailing backslash after the final
+directory name in the argument to indicate that it is a directory, not a filename.
+For example, following code will create directory "C:\\DIR1\\"
+@code
+fs.MkDir(_L("C:\\DIR1\\"));
+@endcode
+The last line in the following example will result in KErrAlreadyExists because "DIR2" doesn't have a trailing backslash,
+therefore is considered as a file name and discarded. Directory "C:\\DIR1\\" has already been created.
+@code
+fs.MkDir(_L("C:\\DIR1\\"));     // shall create DIR1 in the root directory
+fs.MkDir(_L("C:\\DIR1\\DIR2")); // No trailing backslash, fails with KErrAlreadyExists
+@endcode
+This example will always fail because "DIR1" doesn't have a trailing backslash and discarded while the root
+directory always exists.
+@code
+fs.MkDir(_L("C:\\DIR1"));  // No trailing backslash, will always fail with KErrAlreadyExists
+@endcode
+Note, the following case
+@code
+fs.MkDir(_L("C:\\example.txt\\"));	// would normally create a directory "c:\\example.txt\\" with KErrNone
+@endcode
+But if there is a file named "example.txt", which exists at the same location, KErrAccessDenied is returned.
+Note also that because this method can return an error code (eg. because
+the disk is full) before checking whether the path already exists, it
+is not appropriate to use it just to work out whether a path exists or not.
+See MkDirAll(), which may also create intermediate directories.
+@param aPath The name of the new directory. Any path components which are
+not specified here will be taken from the session path.
+			 The directory name shall not contain wild cards ('?' or '*' characters)
+			 and illegal characters like '<', '>', ':', '"', '/', '|' and '\000'.
+			 The directory name containing only whilte space characters
+			 (See TChar::IsSpace()) is also illegal.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes. Even if another error code is returned,
+		(for example, if the disk is full) it is still possible that the
+		path may already exist.
+@capability Dependent If aPath is /Sys then Tcb capability is required.
+@capability Dependent If aPath begins with /Private and does not match this process' SID
+					  then AllFiles capability is required.
+@capability Dependent If aPath is /Resource then Tcb capability is required.
+@see RFs::MkDirAll
+*/
+EFSRV_EXPORT_C TInt RFs::MkDir(const TDesC& aPath)
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsMkDir, MODULEUID, Handle(), aPath);
+	TInt r = SendReceive(EFsMkDir,TIpcArgs(&aPath,NULL));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsMkDirReturn, MODULEUID, r);
+	return r;
+	}
+/**
+Makes one or more directories.
+Any valid path component specified in aPath which does not already exist is
+created as a directory.
+Note that if a filename is specified in the argument, it is	ignored.
+Therefore, there should be a trailing backslash after the final
+directory name in the argument to indicate that it is a directory, not a
+filename.
+See also notes on RFs::MkDir() about trailing backslashes in directory names.
+Note also that because this method can return an error code (eg. because
+the disk is full) before checking whether the path already exists, it
+is not appropriate to use it just to work out whether a path exists or not.
+See MkDir(), which creates only a single new directory.
+@param aPath The path name specifiying the directory or directories to
+create. If the function completes successfully, this path
+identifies a valid	directory. Any path components which are not
+specified here are taken from the session path.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes. Even if another error code is returned,
+		(for example, if the disk is full) it is still possible that the
+		path may already exist.
+@capability Dependent If aPath is /Sys then Tcb capability is required.
+@capability Dependent If aPath begins with /Private and does not match this process' SID
+					  then AllFiles capability is required.
+@capability Dependent If aPath is /Resource then Tcb capability is required.
+@see RFs::MkDir
+*/
+EFSRV_EXPORT_C TInt RFs::MkDirAll(const TDesC& aPath)
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsMkDirAll, MODULEUID, Handle(), aPath);
+	TInt r = SendReceive(EFsMkDir,TIpcArgs(&aPath,TRUE));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsMkDirAllReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::RmDir(const TDesC& aPath)
+/**
+Removes a directory.
+The directory must be empty and cannot be the root directory.
+Note that if a filename is specified in the argument, it is
+ignored.
+For example, following code will result in directory "C:\\SRC\\" being removed as long as
+it is empty, the existance of "ENTRY" will not be checked:
+@code
+fs.RmDir(_L("C:\\SRC\\ENTRY"));
+@endcode
+Similarly, following code will try to remove "C:\\SRC\\" instead of "C:\\SRC\DIR\\":
+@code
+fs.RmDir(_L("C:\\SRC\\DIR"));
+@endcode
+Therefore, there should be a trailing backslash after the final
+directory name in the argument to indicate that it is a directory, not a
+filename.
+See class CFileMan for information on deleting a
+non-empty directory and all of its contents.
+@param aPath The path name of the directory to be removed. Any path	components
+which are not specified here are taken from the session path. Only
+the lowest-level directory identified is removed.
+@return KErrNone, if successful;
+KErrInUse, if trying to remove a non-empty directory or root directory;
+otherwise, one of the other system-wide error codes.
+@capability Dependent If aPath is /Sys then Tcb capability is required.
+@capability Dependent If aPath begins with /Private and does not match this process' SID
+					  then AllFiles capability is required.
+@capability Dependent If aPath is /Resource then Tcb capability is required.
+@see CFileMan
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsRmDir, MODULEUID, Handle(), aPath);
+	TInt r = SendReceive(EFsRmDir,TIpcArgs(&aPath));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsRmDirReturn, MODULEUID, r);
+	return r;
+	}
+void RFs::GetDirL(const TDesC& aName,const TUidType& aUidType,TUint aKey,CDir*& aFileList,RDir& aDir) const
+//
+// Create a dir array. Leave on any error.
+//
+	{
+	aFileList=NULL;
+	User::LeaveIfError(aDir.Open((RFs& )*this,aName,aUidType));
+	DoGetDirL(aKey,aFileList,aDir);
+	}
+void RFs::GetDirL(const TDesC& aName,TUint anAttMask,TUint aKey,CDir*& aFileList,RDir& aDir) const
+//
+// Create a dir array. Leave on any error.
+//
+	{
+	aFileList=NULL;
+	User::LeaveIfError(aDir.Open((RFs& )*this,aName,anAttMask));
+	DoGetDirL(aKey,aFileList,aDir);
+	}
+void RFs::GetDirL(const TDesC& aName,TUint anAttMask,TUint aKey,CDir*& aFileList,CDir*& aDirList,RDir& aDir) const
+//
+// Create a dir array. Leave on any error.
+//
+	{
+	aDirList=NULL;
+	GetDirL(aName,anAttMask|KEntryAttDir,aKey,aFileList,aDir);
+	aFileList->ExtractL(!(anAttMask&KEntryAttDir),aDirList);
+	}
+void RFs::DoGetDirL(TUint aKey,CDir*& aFileList,RDir& aDir) const
+//
+// Create a dir array. Leave on any error.
+//
+	{
+	aFileList=CDir::NewL();
+	TInt r;
+	TEntryArray* pArray=new(ELeave) TEntryArray;
+	CleanupStack::PushL(pArray);
+	TEntryArray& array=*pArray;
+	do
+		{
+		r=aDir.Read(array);
+		if (r==KErrNone || r==KErrEof)
+			{
+			TInt count=array.Count();
+			if (count==0)
+				break;
+			TInt i=0;
+			while (i<count)
+				aFileList->AddL(array[i++]);
+			}
+		}while (r==KErrNone);
+	CleanupStack::PopAndDestroy();
+	if (!(r==KErrNone || r==KErrEof))
+		User::Leave(r);
+	aFileList->Compress();
+	if (aKey==ESortNone)
+		return;
+	r=aFileList->Sort(aKey);
+	if (r!=KErrNone)
+		User::Leave(r);
+	}
+EFSRV_EXPORT_C TInt RFs::GetDir(const TDesC& aName,const TUidType& aUidType,TUint aKey,CDir*& aFileList) const
+/**
+Gets a filtered list of a directory's contents by UID type.
+The aUidType parameter determines which file entry types should be listed.
+The sort key determines the order in which they are listed.
+Notes:
+1. The function sets aFileList to NULL, and then allocates memory for it before
+appending entries to the list. Therefore, aFileList should have no memory
+allocated to it before this function is called, otherwise this memory
+will become orphaned.
+2. The caller of this function is responsible for deleting aFileList after
+the function has returned.
+@param aName     The name of the directory for which a listing is required.
+Wildcards may be used to specify particular files.
+@param aUidType  Only those files whose UIDs match those specified within this
+UID type will be included in the file list. Any, or all, of
+the three UIDs within the UID type may be omitted.
+				 Any UID which is omitted acts in a similar manner to
+				 a wildcard character, matching to all UIDs.
+@param aKey      The sort key. This is a set of flags indicating the order in
+which the entries are to be sorted. These flags are defined
+by TEntryKey.
+@param aFileList On return contains a filtered list of directory and file entries.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@see TEntryKey
+*/
+	{
+	TRACEMULT6(UTF::EBorder, UTraceModuleEfsrv::EFsGetDir1, MODULEUID,
+		Handle(), aName, aUidType[0].iUid, aUidType[1].iUid, aUidType[2].iUid, aKey);
+	RDir d;
+	TRAPD(r,GetDirL(aName,aUidType,aKey,aFileList,d))
+	d.Close();
+	if (r!=KErrNone)
+		{
+		delete aFileList;
+		aFileList=NULL;
+		}
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsGetDir1Return, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::GetDir(const TDesC& aName,TUint anAttMask,TUint aKey,CDir*& aFileList) const
+/**
+Gets a filtered list of a directory's contents.
+The	bitmask determines which file and directory entry types should be listed.
+The sort key determines the order in which they are listed.
+Notes:
+1. If sorting by UID (as indicated when the ESortByUid bit is OR'ed with
+the sort key), then UID information will be included in the listing
+whether or not KEntryAttAllowUid is specified in anAttMask.
+2. The function sets aFileList to NULL, and then allocates memory for it before
+appending entries to the list. Therefore, aFileList should have no memory
+allocated to it before this function is called, otherwise this memory will
+become orphaned.
+3. The caller of this function is responsible for deleting aFileList after
+the function has returned.
+@param aName     The name of the directory for which a listing is required.
+Wildcards may be used to specify particular files.
+@param anAttMask Bitmask indicating the attributes of interest. Only files and
+directories whose attributes match those specified here can be
+included in the listing. For more information,
+see KEntryAttMatchMask and the other directory entry details.
+Also see KEntryAttNormal and the other file or directory attributes.
+@param aKey      The sort key. This is a set of flags indicating the order in
+which the entries are to be sorted. These flags are defined
+by TEntryKey.
+@param aFileList On return contains a filtered list of directory and file entries.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@see TEntryKey
+*/
+	{
+	TRACEMULT4(UTF::EBorder, UTraceModuleEfsrv::EFsGetDir2, MODULEUID, Handle(), aName, anAttMask, aKey);
+	RDir d;
+	if ((aKey&0xff)==ESortByUid)
+		anAttMask|=KEntryAttAllowUid;
+	TRAPD(r,GetDirL(aName,anAttMask,aKey,aFileList,d))
+	d.Close();
+	if (r!=KErrNone)
+		{
+		delete aFileList;
+		aFileList=NULL;
+		}
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsGetDir2Return, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::GetDir(const TDesC& aName,TUint anAttMask,TUint aKey,CDir*& aFileList,CDir*& aDirList) const
+/**
+Gets a filtered list of the directory and file entries contained in
+a directory, and a list of the directory entries only.
+The bitmask	determines which file and directory entry types should be listed in
+aFileList. The contents of the second list, aDirList are not affected by the bitmask; it
+returns all directory entries contained in directory aName. The
+sort key determines the order in which both lists are sorted.
+Notes:
+1. If sorting by UID (as indicated when the ESortByUid bit is OR'ed with
+the sort key), then UID information will be included in the listing
+whether or not KEntryAttAllowUid is specified in anAttMask.
+2. The function sets both aFileList and aDirList to NULL, and then allocates
+memory to them before appending entries to the lists. Therefore, aFileList
+and aDirList should have no memory allocated to them before this
+function is called, otherwise the allocated memory will become orphaned.
+3. The caller of this function is responsible for deleting aFileList
+and aDirList after the function has returned.
+@param aName     The name of the directory for which a listing is required.
+Wildcards may be used to specify particular files.
+@param anAttMask Bitmask indicating the attributes of interest. Only files and
+directories whose attributes match those specified here can be
+included in aFileList. aDirList is unaffected by this mask.
+For more information, see KEntryAttMatchMask and the other
+directory entry details.
+Also see KEntryAttNormal and the other file or directory
+attributes.
+@param aKey      The sort key. This is a set of flags indicating the order in
+which the entries in both lists are to be sorted. These flags
+are defined by TEntryKey.
+@param aFileList On return contains a filtered list of directory and
+file entries.
+@param aDirList  On return contains a filtered list of directory entries only.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@see TEntryKey
+*/
+	{
+	TRACEMULT4(UTF::EBorder, UTraceModuleEfsrv::EFsGetDir3, MODULEUID, Handle(), aName, anAttMask, aKey);
+	RDir d;
+	if (aKey&ESortByUid)
+		anAttMask|=KEntryAttAllowUid;
+	TRAPD(r,GetDirL(aName,anAttMask,aKey,aFileList,aDirList,d))
+	d.Close();
+	if (r!=KErrNone)
+		{
+		delete aFileList;
+		aFileList=NULL;
+		delete aDirList;
+		aDirList=NULL;
+		}
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsGetDir3Return, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Parse(const TDesC& aName,TParse& aParse) const
+/**
+Parses a filename specification.
+Parsing is done with wildcard resolution, using the session path as
+the default. You can then use TParse's getter functions to extract individual
+components of the resulting name. All the path components that are included
+in aName are put into the resulting	filename. Any components that are still
+missing are taken from the session path.
+Specifying:
+@code
+TParse fp;
+@endcode
+@code
+fs.Parse(name,fp);
+@endcode
+is equivalent to
+@code
+TParse fp;
+@endcode
+@code
+fp.Set(name,NULL,&fs.SessionPath());
+@endcode
+Note that the function does not check for illegal characters, or for
+illegal path components in either of the paths specified.
+@param aName  The file name to be parsed, using the session path to provide
+the missing components.
+@param aParse A TParse objct that provides functions for
+extracting individual components of the resulting file name.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsParse1, MODULEUID, Handle(), aName);
+	TFileName session_path;
+	TInt r = SessionPath(session_path);
+	if (r==KErrNone)
+		r = aParse.Set(aName, NULL, &session_path);
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsParse1Return, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Parse(const TDesC& aName,const TDesC& aRelated,TParse& aParse) const
+/**
+Parses a filename specification, specifying related file path components.
+Parsing is done with wildcard resolution, using the session path as
+the default. You can then use TParse's getter functions to extract individual
+components of the resulting name. All the path components that are included
+in aName are put into the resulting	filename. Any missing components are taken
+from the optional aRelated argument, which has the next order of precedence.
+Finally, any components that are still missing are taken from the session path.
+Specifying:
+@code
+TParse fp;
+@endcode
+@code
+fs.Parse(name,related,fp);
+@endcode
+is equivalent to
+@code
+TParse fp;
+@endcode
+@code
+fp.Set(name,related,&fs.SessionPath());
+@endcode
+Note that the function does not check for illegal characters, or for
+illegal path components in any of the paths specified.
+@param aName    The file name to be parsed, using the session path and the
+related path to provide the missing components.
+@param aRelated The related file specification.
+@param aParse   A TParse objct that provides functions for
+extracting individual components of the resulting file name.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsParse2, MODULEUID, Handle(), aName, aRelated);
+	TFileName session_path;
+	TInt r = SessionPath(session_path);
+	if (r==KErrNone)
+		r = aParse.Set(aName, &aRelated, &session_path);
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsParse2Return, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Delete(const TDesC& aName)
+/**
+Deletes a single file.
+Wildcards are not allowed in either the	file name or the extension,
+otherwise an error is returned.
+Note that the file must be closed and must not be read-only.
+Hidden files can be deleted but system files cannot.
+See class CFileMan for information on deleting multiple files.
+@param aName The name of the file to be deleted. Any path components which
+are not specified here will be taken from the session path.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@capability Dependent If aName is /Sys then Tcb capability is required.
+@capability Dependent If aName begins with /Private and does not match this process' SID
+					  then AllFiles capability is required.
+@capability Dependent If aName is /Resource then Tcb capability is required.
+@see CFileMan
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsDelete, MODULEUID, Handle(), aName);
+	TInt r = SendReceive(EFsDelete,TIpcArgs(&aName));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsDeleteReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Rename(const TDesC& anOldName,const TDesC& aNewName)
+/**
+Renames a single file or directory.
+It can also be used to move a file or directory by specifying different
+destination and source directories.	If so, the destination and source
+directories must be on the same drive. If a	directory is moved, then
+the directory structure beneath it is also	moved.
+If a directory specified by aNewName is different from one specified
+by anOldName, then the file or directory is	moved to the new directory.
+The file or directory cannot be moved to another device by this means,
+either explicitly (by another drive	specified in the name) or implicitly
+(because the directory has been mapped to another device with SetSubst().
+The function fails and returns an error code in the following
+circumstances:
+1. If either the old or new name includes wildcards.
+2. If a file or directory with the new name already exists in
+the target directory. Overwriting is not permitted.
+3. If file anOldName does not exist, or is open.
+Read-only, system and hidden files may be renamed. The renamed
+file's attributes are preserved.
+Note that when this function is operating on directories, a	trailing backslash
+is not required after the final directory name in either anOldName or aNewName.
+See class CFileMan for information on renaming multiple files.
+@param anOldName File or directory to be renamed. Any path components which are
+not specified here will be taken from the session path.
+@param aNewName  Path specifying the new name for the file or directory and/or
+				 its new parent directory. All directories specified in this path
+				 must exist.
+				 Any path components which are not specified here will be taken
+				 from the session path.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@capability Dependent If either anOldName or aNewName is /Sys then Tcb capability is required.
+@capability Dependent If either anOldName or aNewName begins with /Private and does not match
+					  this process' SID then AllFiles capability is required.
+@capability Dependent If either anOldName or aNewName is /Resource then Tcb capability is required.
+@see CFileMan
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsRename, MODULEUID, Handle(), anOldName, aNewName);
+	TInt r;
+	if (anOldName.Length() <= 0 || aNewName.Length() <= 0 )
+		r = KErrBadName;
+	else
+		r = SendReceive(EFsRename,TIpcArgs(&anOldName,&aNewName));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsRenameReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Replace(const TDesC& anOldName,const TDesC& aNewName)
+/**
+Replaces a single file with another.
+This function does not support the use of wildcards. Unlike Rename(), it only
+applies to files.
+This function operates as follows:
+1. if the aNewName file does not exist, it is created.
+2. anOldName's contents, attributes and the date and time of its last
+modification are copied to file aNewName, overwriting any existing contents
+and attribute details.
+3. anOldName is deleted.
+anOldName may be hidden, read-only or a system file. However,
+neither anOldName, nor, if it exists, aNewName, can be open;
+aNewName must not be read-only.
+Both files must be on the same drive.
+@param anOldName The file to be replaced. Must exist and must be closed. It is
+deleted by this function.
+@param aNewName  The file to replace anOldName. Does not need to exist, but if
+it does exist, it must be closed. If it exists, its name
+remains unchanged but its contents, attributes and the date
+and time of its last modification are replaced by those
+of anOldName.
+If it does not exist, it will be created and is assigned
+the contents and attributes of anOldName. Must not be followed
+by a trailing backslash.
+@return KErrNone, if successful;
+KErrAccessDenied, if an attempt is made to replace a directory;
+otherwise one of the other system-wide error codes.
+@capability Dependent If either anOldName or aNewName is /Sys then Tcb capability is required.
+@capability Dependent If either anOldName or aNewName begins with /Private and does not match
+					  this process' SID then AllFiles capability is required.
+@capability Dependent If either anOldName or aNewName is /Resource then Tcb capability is required.
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsReplace, MODULEUID, Handle(), anOldName, aNewName);
+	TInt r = SendReceive(EFsReplace,TIpcArgs(&anOldName,&aNewName));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsReplaceReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Att(const TDesC& aName,TUint& aVal) const
+/**
+Gets a file's attributes.
+@param aName The filename. Any path components which are not specified here
+will be taken from the session path.
+@param aVal  On return, the individual bits within the byte indicate which
+attributes have been set. For more information see KEntryAttNormal
+	         and the other file/directory attributes.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@capability Dependent If aName contains /sys/ then AllFiles capability is required.
+@capability Dependent If aName contains /Private/ and does not match
+					  this process' SID then AllFiles capability is required.
+@see KEntryAttNormal
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsAtt, MODULEUID, Handle(), aName);
+	TEntry e;
+	TInt r=Entry(aName,e);
+	if (r==KErrNone)
+		aVal=e.iAtt;
+	TRACERET2(UTF::EBorder, UTraceModuleEfsrv::EFsAttReturn, MODULEUID, r, aVal);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::SetAtt(const TDesC& aName,TUint aSetAttMask,TUint aClearAttMask)
+/**
+Sets or clears the attributes of a single file or directory.
+The function uses two bitmasks. The first bitmask specifies the	attributes
+to be set; the second specifies the attributes to be cleared.
+An attempt to set or clear the KEntryAttDir, KEntryAttVolume or KEntryAttRemote
+attributes have no effect.
+@param aName          File or directory name. Any path components which are not
+specified here will be taken from the session path. Must
+not include wildcard characters. The file must be closed.
+@param aSetAttMask    Bitmask indicating the attributes to be set.
+@param aClearAttMask  Bitmask indicating the attributes to be cleared. For more
+				      information, see KEntryAttNormal and the other file or
+				      directory attributes.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@panic FSCLIENT 21 if any attribute appears in both bitmasks.
+@capability Dependent If aName is /Sys then Tcb capability is required.
+@capability Dependent If aName begins with /Private and does not match
+					  this process' SID then AllFiles capability is required.
+@capability Dependent If aName is /Resource then Tcb capability is required.
+@see RFs::SetEntry
+*/
+	{
+	TRACEMULT4(UTF::EBorder, UTraceModuleEfsrv::EFsSetAtt, MODULEUID,
+		Handle(), aName, aSetAttMask, aClearAttMask);
+	TInt r = SetEntry(aName,TTime(0),aSetAttMask,aClearAttMask);
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetAttReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Modified(const TDesC& aName,TTime& aTime) const
+/**
+Gets the last modification date and time of a file or a directory,
+in UTC.
+If there has been no modification, the function gets the date and
+time of the file or directory's creation.
+@param aName File or directory name.
+@param aTime On return, contains the date and time of the file or
+directory's last modification in universal time.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@capability Dependent If aName contains /sys/ then AllFiles capability is required.
+@capability Dependent If aName contains /Private/ and does not match
+					  this process' SID then AllFiles capability is required.
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsModified, MODULEUID, Handle(), aName);
+	TEntry e;
+	TInt r=Entry(aName,e);
+	if (r==KErrNone)
+		aTime=e.iModified;
+	TRACERET3(UTF::EBorder, UTraceModuleEfsrv::EFsModifiedReturn, MODULEUID, r, I64LOW(aTime.Int64()), I64HIGH(aTime.Int64()));
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::SetModified(const TDesC& aName,const TTime& aTime)
+/**
+Sets the date and time that the contents of a file or directory
+were modified, in UTC.
+@param aName File or directory name.
+@param aTime The new date and time that the file or directory was modified
+in universal time.
+@return KErrNone if successful;
+KErrInUse, if the file is open;
+otherwise one of the other system-wide error codes.
+@capability Dependent If aName is /Sys then Tcb capability is required.
+@capability Dependent If aName begins with /Private and does not match
+					  this process' SID then AllFiles capability is required.
+@capability Dependent If aName is /Resource then Tcb capability is required.
+*/
+	{
+	TRACEMULT4(UTF::EBorder, UTraceModuleEfsrv::EFsSetModified, MODULEUID, Handle(), aName, I64LOW(aTime.Int64()), I64HIGH(aTime.Int64()) );
+	TInt r = SetEntry(aName,aTime,KEntryAttModified,0);
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetModifiedReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::Entry(const TDesC& aName,TEntry& anEntry) const
+/**
+Gets the entry details for a file or directory.
+This information includes UID information.
+@param aName   Name of file or directory.
+@param anEntry On return, contains the entry details for the file or directory. TEntry::iModified contains UTC date and time.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@capability Dependent If aName contains "\\Sys\\" and includes an additional file or directory then AllFiles capability
+					  is required. For example, the paths "c:\\sys" and "c:\\sys\\" will always be readable, whereas
+					  the path "c:\\sys\\abc\\" will only be readable with AllFiles capability.
+@capability Dependent If aName contains \\Private\\ and includes an additional file, or a directory which does not match
+					  this process' SID, then AllFiles capability is required. For example, the paths "c:\\private" and
+					  "c:\\private\\" will always be readable, whereas the path "c:\\private\\<n>\\" will only be
+					  readable with AllFiles capability or if <n> matches the process' SID.
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsEntry, MODULEUID, Handle(), aName);
+	TPckg<TEntry> e(anEntry);
+	TInt r = SendReceive(EFsEntry,TIpcArgs(&aName,&e));
+	TRACE5(UTF::EBorder, UTraceModuleEfsrv::EFsEntryReturn, MODULEUID,
+		r, anEntry.iAtt,
+		I64LOW(anEntry.iModified.Int64()), I64HIGH(anEntry.iModified.Int64()),
+		anEntry.iSize);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::SetEntry(const TDesC& aName,const TTime& aTime,TUint aSetAttMask,TUint aClearAttMask)
+/**
+Sets both the attributes and the last modified date and time for a file or directory.
+The function uses two bitmasks. The first bitmask determines
+which attributes should be set. The second bitmask determines which should be cleared.
+An attempt to set or clear the KEntryAttDir, KEntryAttVolume or KEntryAttRemote
+attributes have no effect.
+@param aName          File or directory name.
+@param aTime	      New date and time. UTC date and time should be used.
+@param aSetAttMask    Bitmask indicating which attributes are to be set.
+@param aClearAttMask  Bitmask indicating which attributes are cleared. For more
+information, see KEntryAttNormal, and the other file
+or directory attributes.
+@return KErrNone, if successful;
+KErrInUse, if the file is open;
+otherwise one of the other system-wide error codes.
+@panic FSCLIENT 21 if any attribute appears in both bitmasks.
+@capability Dependent If aName is /Sys then Tcb capability is required.
+@capability Dependent If aName begins with /Private and does not match
+					  this process' SID then AllFiles capability is required.
+@capability Dependent If aName is /Resource then Tcb capability is required.
+@see KEntryAttNormal
+@see KEntryAttDir
+@see KEntryAttVolume
+*/
+	{
+	TRACEMULT6(UTF::EBorder, UTraceModuleEfsrv::EFsSetEntry, MODULEUID,
+		Handle(), aName,
+		I64LOW(aTime.Int64()), I64HIGH(aTime.Int64()),
+		aSetAttMask, aClearAttMask);
+	__ASSERT_ALWAYS((aSetAttMask&aClearAttMask)==0,Panic(EAttributesIllegal));
+	TPtrC8 timeBuf((TUint8*)&aTime,sizeof(TTime));
+	TInt r = SendReceive(EFsSetEntry,TIpcArgs(&aName,&timeBuf,aSetAttMask,aClearAttMask));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetEntryReturn, MODULEUID, r);
+	return r;
+	}
+/**
+Reads data from a file without opening it.
+The contents of the	file can be accessed regardless of the file's lock state.
+The file may be open by any number of other clients for reading	or writing.
+In allowing such access to a file, the fileserver makes no guarantees as to
+the validity of the data it returns.
+@param aName    Name of the file to be accessed.
+@param aPos     The offset, in bytes, from the start of the file where
+				reading is to start.
+@param aDes     On return, contains the data read from the file. The length of
+				the descriptor is set to the number of bytes read. If the
+				specified offset lies beyond the end of the file, no data is
+				read and the length of this descriptor is set to zero.
+@param aLength  The number of bytes to be read from the file.
+@return KErrNone if successful,
+		KErrArgument if aLength is negative,
+		otherwise one of the other system-wide error codes.
+@panic FSCLIENT 19 if aPos negative.
+@panic FSCLIENT 27 if aLength is greater than the maximum length of
+the target descriptor.
+@capability Dependent If the path for aName starts with /Sys capability AllFiles is required
+@capability Dependent If the path for aName starts with /Private and this process does not have
+the relevant SID capability AllFiles is required
+*/
+EFSRV_EXPORT_C TInt RFs::ReadFileSection(const TDesC& aName,TInt64 aPos,TDes8& aDes,TInt aLength) const
+	{
+	TRACEMULT5(UTF::EBorder, UTraceModuleEfsrv::EFsReadFileSection, MODULEUID,
+		Handle(), aName, I64LOW(aPos), I64HIGH(aPos), aLength);
+	__ASSERT_ALWAYS(aPos>=0,Panic(EPosNegative));
+#ifndef SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API
+	if(aPos > KMaxTInt)
+		{
+		TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsReadFileSectionReturn, MODULEUID, KErrTooBig);
+		return KErrTooBig;
+		}
+	if((aPos + aLength) > KMaxTInt)
+		aLength = KMaxTInt - (TInt)aPos;
+#endif
+	if (aLength)	//	Number of characters to read
+		{
+		__ASSERT_ALWAYS(aDes.MaxLength()>=aLength,Panic(EBadLength));
+	 	}
+	else
+		{
+		aDes.Zero();
+		TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsReadFileSectionReturn, MODULEUID, KErrNone);
+		return(KErrNone);
+		}
+	__ASSERT_ALWAYS(aDes.MaxLength()>=aLength,Panic(EBadLength));
+	TInt r;
+	if(!(I64HIGH(aPos)))
+		{
+		r = SendReceive(EFsReadFileSection,TIpcArgs(&aDes,&aName,I64LOW(aPos),aLength));
+		}
+	else
+		{
+		TPckgC<TInt64> pkPos(aPos);
+		r = SendReceive(EFsReadFileSection|KIpcArgSlot2Desc,TIpcArgs(&aDes,&aName,&pkPos,aLength));
+		}
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsReadFileSectionReturn, MODULEUID, r);
+	return r;
+	}
+/**
+Maintained for BC
+@internalTechnology
+*/
+EFSRV_EXPORT_C TInt RFs::ReadFileSection_RESERVED(const TDesC& aName,TInt aPos,TDes8& aDes,TInt aLength) const
+	{
+	TRACEMULT5(UTF::EBorder, UTraceModuleEfsrv::EFsReadFileSection, MODULEUID,
+		Handle(), aName, aPos, 0, aLength);
+	__ASSERT_ALWAYS(aPos>=0,Panic(EPosNegative));
+	if (aLength)	//	Number of characters to read
+		{
+		__ASSERT_ALWAYS(aDes.MaxLength()>=aLength,Panic(EBadLength));
+	 	}
+	else
+		{
+		aDes.Zero();
+		TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsReadFileSectionReturn, MODULEUID, KErrNone);
+		return(KErrNone);
+		}
+	__ASSERT_ALWAYS(aDes.MaxLength()>=aLength,Panic(EBadLength));
+	TInt r = SendReceive(EFsReadFileSection,TIpcArgs(&aDes,&aName,aPos,aLength));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsReadFileSectionReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C void RFs::ResourceCountMarkStart() const
+/**
+Marks the start of resource count checking.
+Typically, this function is called immediately after a client is connected
+to the file server, and before any resources are opened.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsResourceCountMarkStart, MODULEUID, Handle());
+	RSessionBase::SendReceive(EFsResourceCountMarkStart);
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsResourceCountMarkStartReturn, MODULEUID);
+	}
+EFSRV_EXPORT_C void RFs::ResourceCountMarkEnd() const
+/**
+Ends resource count checking. Typically, this function is called immediately
+before closing a session with the file server.
+@panic CSessionFs 2 if the number of resources opened since the start of resource
+count checking is not equal to the number of resources closed.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsResourceCountMarkEnd, MODULEUID, Handle());
+	RSessionBase::SendReceive(EFsResourceCountMarkEnd);
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsResourceCountMarkEndReturn, MODULEUID);
+	}
+EFSRV_EXPORT_C TInt RFs::ResourceCount() const
+/**
+Gets the number of currently open resources.
+The resource count is incremented by one: when a file or directory
+is opened, when a device is opened in preparation for formatting, when a direct access channel
+to a disk is opened.
+@return The number of resources currently open.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsResourceCount, MODULEUID, Handle());
+	TInt count;
+	TPckg<TInt> pckg(count);
+	SendReceive(EFsResourceCount,TIpcArgs(&pckg));
+	TInt r = *(TInt*)pckg.Ptr();
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsResourceCountReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::CheckDisk(const TDesC& aDrive) const
+/**
+Checks the integrity of the disk on the specified drive.
+On FAT, this checks if a cluster number is invalid, if a cluster is allocated to
+more than one file entry, if an unallocated cluster is not set free, and if size
+of an entry is invalid.
+@param aDrive Path indicating the drive which contains the disk to be checked. If the drive
+information is not specified the current session drive is taken by default.
+		Checkdisk is performed on the requested drive irrespective of the correctness or
+		existance of the given path.
+@return KErrNone, if successful;
+		1, if successful but a file cluster contains a bad value;
+		2, if successful but two files are linked to the same cluster;
+		3, if successful but an unallocated cluster contains a value;
+		4, if successful but the size of a file is not equal to the number of clusters in chain;
+KErrNotReady, if the specified drive is empty;
+KErrNotSupported, if the drive cannot handle this request;
+KErrPermissionDenied, if the caller doesn't have DiskAdmin capability;
+		KErrTooBig, if the drives folder depth exceeds maximum allowed. For the current FAT file system implementation this limit is 50.
+Other system wide error codes may also be returned.
+@capability DiskAdmin
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsCheckDisk, MODULEUID, Handle(), aDrive);
+	TInt r = SendReceive(EFsCheckDisk,TIpcArgs(&aDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsCheckDiskReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::ScanDrive(const TDesC& aDrive) const
+/**
+Checks the specified drive for errors and corrects them. Specifically, it
+checks if long file name entries' IDs are in sequence and short name is valid,
+and file's allocated clusters are not used by other files.
+This does not run on the internal RAM drive, and only applies to a
+FAT file system.
+@param aDrive Path indicating the drive which contains the disk to be checked. If the drive
+information is not specified the current session drive is taken by default.
+		ScanDrive is performed on the requested drive irrespective of the correctness or
+		existance of the given path.
+@return KErrNone if successful,
+KErrPermissionDenied if caller doesn't have capability DiskAdmin,
+KErrInUse if drive is in use,
+otherwise one of the other system-wide error codes
+@capability DiskAdmin
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsScanDrive, MODULEUID, Handle(), aDrive);
+	TInt r = SendReceive(EFsScanDrive,TIpcArgs(&aDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsScanDriveReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::GetShortName(const TDesC& aLongName,TDes& aShortName) const
+/**
+Gets the short filename associated with a VFAT long filename.
+The short filename has a limit of eight characters for the file name and three
+characters for the extension.
+@param aLongName  The long filename. Any path components which are not
+specified	here will be taken from the session path.
+If the path specifies a directory, it may or may not be
+followed by a trailing backslash.
+@param aShortName On return, contains the short filename associated with the file
+or directory specified in aLongName.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@capability Dependent If the path for aLongName starts with /Sys capability AllFiles is required
+@capability Dependent If the path for aLongName starts with /Private and this process does not
+					  have the relevant SID capability AllFiles is required
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsGetShortName, MODULEUID, Handle(), aLongName);
+	TInt r = SendReceive(EFsGetShortName,TIpcArgs(&aLongName,&aShortName));
+	TRACERETMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsGetShortNameReturn, MODULEUID, r, aShortName);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::GetLongName(const TDesC& aShortName,TDes& aLongName) const
+/**
+Gets the long filename associated with a short (8.3) filename.
+A long filename has a limit of 256 characters for each component, as well as a
+limit of 256 characters for the entire path.
+@param aShortName The short file name. Any path components which are not
+specified here will be taken from the session path. If
+the path specifies a directory, it may or may not be followed
+by a trailing backslash.
+@param aLongName  On return, contains the long version of the name.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@capability Dependent If the path for aShortName starts with /Sys capability AllFiles is required
+@capability Dependent If the path for aShortName starts with /Private and this process does not
+					  have the relevant SID capability AllFiles is required
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsGetLongName, MODULEUID, Handle(), aShortName);
+	TInt r = SendReceive(EFsGetLongName,TIpcArgs(&aShortName,&aLongName));
+	TRACERETMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsGetLongNameReturn, MODULEUID, r, aLongName);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::IsFileOpen(const TDesC& aFileName,TBool& anAnswer) const
+/**
+Tests whether a file is open.
+This function is useful because several file based operations provided by
+the RFs class, for example: Delete(), Replace() and Rename(), require that
+the file be closed.
+@param aFileName The name of the file to test. Any path components which are
+not specified here will be taken from the session path. If a
+				 directory is specified instead of a file then KErrNone will be
+				 returned and anAnswer will be set to EFalse.
+@param anAnswer  On return, true if the file is open, false if closed.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@capability Dependent If the path for aFileName starts with /Sys capability AllFiles is required
+@capability Dependent If the path for aFileName starts with /Private and this process does not
+					  have the relevant SID capability AllFiles is required
+@see RFs::Delete
+@see RFs::Rename
+@see RFs::Replace
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsIsFileOpen, MODULEUID, Handle(), aFileName);
+	TPckg<TBool> b(anAnswer);
+	TInt r = SendReceive(EFsIsFileOpen,TIpcArgs(&aFileName,&b));
+	TRACERET2(UTF::EBorder, UTraceModuleEfsrv::EFsIsFileOpenReturn, MODULEUID, r, anAnswer);
+	return r;
+	}
+TInt RFs::GetOpenFileList(TInt& aSessionNumber,TInt& aLocalPos,TThreadId& aThreadId,TEntryArray& anArray) const
+//
+// Private function to get a list of open files
+//
+	{
+	TOpenFileListPos s(aSessionNumber,aLocalPos);
+	TPckg<TOpenFileListPos> pS(s);
+	TPckg<TThreadId> threadId(aThreadId);
+	anArray.iCount=KCountNeeded;
+	TInt r=SendReceive(EFsListOpenFiles,TIpcArgs(&pS,&threadId,&anArray.iBuf));
+	aSessionNumber=s.iSession;
+	aLocalPos=s.iEntryListPos;
+	return r;
+	}
+EFSRV_EXPORT_C TBool RFs::GetNotifyUser()
+/**
+Tests whether user notification of file read or write failure is in effect.
+@return True if notification in effect, false if not.
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsGetNotifyUser, MODULEUID, Handle());
+	TInt notifyUser;
+	TPckg<TInt> pckgNotify(notifyUser);
+	SendReceive(EFsGetNotifyUser,TIpcArgs(&pckgNotify));
+	TBool r = notifyUser;
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsGetNotifyUserReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C void RFs::SetNotifyUser(TBool aValue)
+/**
+Sets whether the user should be notified of file read or write failure.
+Note that if some drive is mounted as synchronous (see RFs::MountFileSystem), the user won't be
+notified about read/write failures on it.
+@param aValue ETrue, if user is to be notified of read or write failures;
+EFalse, for no notification.
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsSetNotifyUser, MODULEUID, Handle(), aValue);
+	SendReceive(EFsSetNotifyUser,TIpcArgs(aValue));
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsSetNotifyUserReturn, MODULEUID);
+	}
+EFSRV_EXPORT_C TUint8* RFs::IsFileInRom(const TDesC& aFileName) const
+/**
+Gets a pointer to the specified file, if it is in ROM.
+Note that this is not a test of whether the file is on the Z: drive, as
+the Z: drive may consist of a ROM and another file system, using the composite
+file system. For example, the file system may be ROFS, and the underlying media
+NAND flash.
+@param aFileName The filename whose address is sought. Cannot include wildcards.
+Any path components which are not specified here will be taken
+from the session path.
+@return Address of the start of the file, if it is in ROM. This is NULL, if
+the file is not in ROM. Note that for the composite file system, the file
+might be on the Z: drive but in a non-ROM file system (i.e. ROFS), in
+which case the function still returns NULL.
+@capability Dependent If the path for aFileName starts with /Sys capability AllFiles is required
+@capability Dependent If the path for aFileName starts with /Private and this process does not
+					  have the relevant SID capability AllFiles is required
+*/
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsIsFileInRom, MODULEUID, Handle(), aFileName);
+	TPckgBuf<TUint8*> start;
+	TUint8* r;
+	if (SendReceive(EFsIsFileInRom,TIpcArgs(&aFileName,&start))!=KErrNone)
+		r = NULL;
+	else
+		r = start();
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsIsFileInRomReturn, MODULEUID, r);
+	return r;
+	}
+/**
+Tests whether a filename and path are syntactically correct.
+The following restrictions apply to the path and to its components:
+1.  Wildcards are not allowed in any path component, including the filename and extension.
+2.  Double backslashes are not allowed anywhere in the path
+3.  The following 6 characters cannot appear in the path: < > : " / |
+4.  Either or both of a filename or extension must be present. This means that a valid aFileName can not
+end with backslash (like "c:\\SomeName\\"), because it will mean that "SomeName" is a directory.
+5.  The entire component following the final backslash (the filename and extension) cannot consist solely of space characters,
+or of a single or double dot.
+6.  Spaces between the drive, if specified, and the first directory in the path are illegal, although there may be
+spaces between other path components, for example, between directories.
+7.  If the path in aFileName is not fully specified, i.e. doesn't look like "c:\\Dir1\\File1.bin", all missing
+parts of the full path will be taken from the session path, @see RFs::SetSessionPath, @see RFs::SessionPath.
+In this case the session path must be set, otherwise this method will return EFalse.
+For example: for the case "\\file1.txt" only the drive letter will be taken from the session path;
+for the case "file1.txt"   whole session path will be internally prepended to the "file1.txt" and whole path checked.
+Note that in this case total length of the name in the aFileName parameter and the session path shall not exceed KMaxFileName characters.
+@param aFileName    The path to be checked for validity.
+May specify a filename alone, or an entire path specification, including drive letter.
+If a path is specified, all components are checked for validity.
+@return ETrue, if the name is valid (conforms to the mentioned above criteria); EFalse otherwise.
+*/
+EFSRV_EXPORT_C TBool RFs::IsValidName(const TDesC& aFileName) const
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsIsValidName1, MODULEUID, Handle(), aFileName);
+	TBool returnInvalidChar=EFalse;
+	TPckg<TBool> bPckg(returnInvalidChar);
+	TBool b;
+	if (SendReceive(EFsIsValidName,TIpcArgs(&aFileName,&bPckg,NULL,NULL))!=KErrNone)
+		b = EFalse;
+	else
+		b = ETrue;
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsIsValidName1Return, MODULEUID, b);
+	return b;
+	}
+/**
+The following restrictions apply to the path and to its components:
+1.  Wildcards are not allowed in any path component, including the filename and extension.
+2.  Double backslashes are not allowed anywhere in the path
+3.  The following 6 characters cannot appear in the path: < > : " / |
+4.  Either or both of a filename or extension must be present. This means that a valid aFileName can not
+end with backslash (like "c:\\SomeName\\"), because it will mean that "SomeName" is a directory.
+5.  The entire component following the final backslash (the filename and extension) cannot consist solely of space characters,
+or of a single or double dot.
+6.  Spaces between the drive, if specified, and the first directory in the path are illegal, although there may be
+spaces between other path components, for example, between directories.
+7.  If the path in aFileName is not fully specified, i.e. doesn't look like "c:\\Dir1\\File1.bin", all missing
+parts of the full path will be taken from the session path, @see RFs::SetSessionPath, @see RFs::SessionPath.
+In this case the session path must be set, otherwise this method will return EFalse.
+For example: for the case "\\file1.txt" only the drive letter will be taken from the session path;
+for the case "file1.txt"   whole session path will be internally prepended to the "file1.txt" and whole path checked.
+Note that in this case total length of the name in the aFileName parameter and the session path shall not exceed KMaxFileName characters.
+@param aFileName    The path to be checked for validity.
+May specify a filename alone, or an entire path specification, including drive letter.
+If a path is specified, all components are checked for validity.
+@param aBadChar     reference to the variable that on return can contain illegal character from aFileName.
+1. if the filename and optional path in aFileName are valid, this method will return ETrue and aBadChar will be set to 0x00.
+2. if there is an illegal character in aFileName, this method will return EFalse and aBadChar will contain this illegal character.
+3. if there is no illegal characters in aFileName, but this is still not a valid filename (like "\\SomeName\\")
+this method will return EFalse and aBadChar will contain space ' ' or code 0x20.
+@return ETrue, if the name is valid (conforms to the mentioned above criteria); EFalse otherwise.
+*/
+EFSRV_EXPORT_C TBool RFs::IsValidName(const TDesC& aFileName,TText& aBadChar) const
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsIsValidName2, MODULEUID, Handle(), aFileName);
+	TBool returnInvalidChar=ETrue;
+	TPckg<TBool> boolPckg(returnInvalidChar);
+	TPckg<TText> textPckg(aBadChar);
+	TBool b;
+	if (SendReceive(EFsIsValidName,TIpcArgs(&aFileName,&boolPckg,&textPckg,NULL))!=KErrNone)
+		b = EFalse;
+	else
+		b = ETrue;
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsIsValidName2Return, MODULEUID, b, aBadChar);
+	return b;
+	}
+/**
+This API can be used to validate both directory and file names.
+If the name ends with a trailing backslash '\\' then it is considered to be a directory
+else a filename.
+For example: "C:\\test\\" would mean a directory, whereas
+			 "C:\\test" would mean a file, both of which would be returned as a Valid Name.
+However a name such as "C:\\test\\\\" would be returned as an Invalid name with error code TError::ErrBadName
+The following restrictions apply to the path and to its components:
+1.  Wildcards are not allowed in any path component, including the name and extension.
+2.  Double backslashes are not allowed anywhere in the path
+3.  The following 6 characters cannot appear in the path: < > : " / |
+4.  The entire component following the final backslash (the filename and extension) cannot consist solely of space characters,
+or of a single or double dot.
+5.  Spaces between the drive, if specified, and the first directory in the path are illegal, although there may be
+spaces between other path components, for example, between directories.
+6.  If TNameValidParam::iUseSesssionPath is set to ETrue, and if the path in aName is not fully specified,
+	i.e. doesn't look like "c:\\Dir1\\File1.bin", all missing parts of the full path will be taken from the session path,
+	@see RFs::SetSessionPath, @see RFs::SessionPath.
+In this case the session path must be set, otherwise this method will return EFalse.
+For example: for the case "\\file1.txt" only the drive letter will be taken from the session path;
+for the case "file1.txt"   whole session path will be internally prepended to the "file1.txt" and whole path checked.
+Note that in this case total length of the name in the aName parameter and the session path shall not exceed KMaxFileName characters.
+7. If TNameValidParam::iUseSesssionPath is set to EFalse, which is the default value, then
+the session path is not used to fill in the missing parts of the name as stated above.
+For example: for the case "file1.txt", session path will not be used to check the validity of the name.
+@param aName    The path to be checked for validity.
+May specify a name alone, or an entire path specification, including drive letter.
+If a path is specified, all components are checked for validity.
+@param aParam     reference to the variable that on return can contain details of the error if any.
+				  While constructing an object of this type one could specify whether one wants to use the sessionPath for filling up missing parts of aName,
+				  or one would want to test aName as it is without prepending the sessionPath.
+				  By default the sessionPath is NOT used.
+1. if the name and optional path in aName are valid, this method will return ETrue and TError::iError will contain ErrNone.
+2. if there is an illegal character in aName, this method will return EFalse and TError::iError will contain KErrBadCharacter.
+Also TError::iInvalidCharPos will indicate the position of the rightmost invalid character.
+3. if there is no illegal characters in aName, but this is still not a valid name (like "")
+this method will return EFalse and TError::iError will contain KErrBadCharacter, while iInvalidCharPos will be set to 0
+					4. if length of the name exceeds 256 characters, this method will return EFalse and TError::iError will contain KErrTooLong.
+					   if the optional sessionPath is used, then the length of the sessionPath is also used to determine whether the length exceeds 256 characters.
+@return ETrue, if the name is valid (conforms to the mentioned above criteria); EFalse otherwise.
+*/
+EFSRV_EXPORT_C TBool RFs::IsValidName(const TDesC& aName, TNameValidParam& aParam )
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsIsValidName3, MODULEUID, Handle(), aName);
+	TPckg<TNameValidParam> paramPckg(aParam);
+	TBool b;
+	if (SendReceive(EFsIsValidName,TIpcArgs(&aName,NULL,NULL,&paramPckg))!=KErrNone)
+		b = EFalse;
+	else
+		b = ETrue;
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsIsValidName3Return, MODULEUID, b, aParam.ErrorCode());
+	return b;
+	}
+EFSRV_EXPORT_C TInt RFs::GetDriveName(TInt aDrive,TDes& aDriveName) const
+/**
+Gets the name of a drive.
+Drive naming is optional. If the drive specified has not been assigned a name,
+this function returns a descriptor whose length is zero.
+@param aDrive     The drive number. Specify a drive in the range
+EDriveA to EDriveZ for drives A to Z, respectively.
+The default drive is the session default drive represented
+by KDefaultDrive.
+@param aDriveName On return, the drive name.
+@return KErrNone if successful, otherwise one of the other
+system-wide error codes.
+@see TDriveNumber
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsGetDriveName, MODULEUID, Handle(), aDrive);
+	TInt r = SendReceive(EFsGetDriveName,TIpcArgs(aDrive,&aDriveName));
+	TRACERETMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsGetDriveNameReturn, MODULEUID, r, aDriveName);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::SetDriveName(TInt aDrive,const TDesC& aDriveName)
+/**
+Sets the name of a drive.
+Drive naming is optional. Any drive can be assigned a name, and more than
+one drive can share the same name.
+@param aDrive     The drive number. Specify a drive in the range
+EDriveA to EDriveZ for drives A to Z, respectively.
+Specify KDefaultDrive for the session default drive.
+@param aDriveName The name of the drive, with a maximum of 256 characters.
+The name cannot contain the 6 characters < > : " / |
+@return KErrNone if successful;
+KErrBadName, if the name contains illegal characters;
+otherwise one of the other system-wide error codes.
+@capability DiskAdmin
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsSetDriveName, MODULEUID, Handle(), aDrive, aDriveName);
+	TInt r = SendReceive(EFsSetDriveName,TIpcArgs(aDrive,&aDriveName));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetDriveNameReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::LockDrive(TInt aDrv, const TMediaPassword &aOld, const TMediaPassword &aNew, TBool aStore)
+/**
+Sets the password for the media in the specified drive.
+The media is not necessarily locked afterwards. Accessibility is determined
+by the following rules:
+- The media may not become locked until power is removed (such as with MMC cards)
+- If the password is added to the password store (the aStore parameter is ETrue), the
+media will be automatically unlocked on the next access.
+@param aDrv   The drive.
+@param aOld   The existing password. If no password is set, this must be a zero-length descriptor.
+@param aNew   The new password.
+@param aStore ETrue if the new password is to be saved to the controller password store;
+EFalse if not.
+@return KErrNone if successful;
+KErrNotSupported if the media does not support password locking.
+@capability DiskAdmin
+*/
+	{
+	TRACE3(UTF::EBorder, UTraceModuleEfsrv::EFsLockDrive, MODULEUID, Handle(), aDrv, aStore);
+	TInt r = SendReceive(EFsLockDrive,TIpcArgs(aDrv,&aOld,&aNew,aStore));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsLockDriveReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::UnlockDrive(TInt aDrive, const TMediaPassword &aPassword, TBool aStore)
+/**
+Unlocks the media in the specified drive.
+The password must be added to the MultiMedia card controller's password store
+so that the controller can subsequently issue the password without the user
+having to be prompted for it again.
+@param aDrive    The drive.
+@param aPassword The password.
+@param aStore    Specify ETrue to add the password to the
+controller's password store.
+@return KErrNone, if successful;
+KErrAccessDenied, if the password is incorrect;
+KErrAlreadyExists, if the card has already been unlocked;
+KErrNotSupported, if the media does not support password locking.
+@capability DiskAdmin
+*/
+	{
+	TRACE3(UTF::EBorder, UTraceModuleEfsrv::EFsUnlockDrive, MODULEUID, Handle(), aDrive, aStore);
+	TInt r = SendReceive(EFsUnlockDrive,TIpcArgs(aDrive,&aPassword,aStore));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsUnlockDriveReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::ClearPassword(TInt aDrv, const TMediaPassword &aPswd)
+/**
+Clears the password from the locked MultiMedia card in the specified drive.
+Clearing the password causes the MultiMedia card controller to set
+the password to null.
+@param aDrv  The drive.
+@param aPswd The current password, which is required to perform this
+operation.
+@return KErrNone, if successful;
+KErrAccessDenied, if the password is wrong or the card is still locked;
+otherwise one of the other system-wide error codes.
+@capability DiskAdmin
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsClearPassword, MODULEUID, Handle(), aDrv);
+	TInt r = SendReceive(EFsClearPassword,TIpcArgs(aDrv,&aPswd));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsClearPasswordReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::ErasePassword(TInt aDrv)
+/**
+Erase the password from the locked MultiMedia card in the specified drive.
+Used when the password is unknown, and may result in the media being erased.
+Successful execution of this call may result in leaving the media in unformatted state.
+Hence, it is recommended to format the Multimedia card after calling RFs::ErasePassword().
+@param aDrv  The drive.
+@return KErrNone, if successful;
+otherwise one of the other system-wide error codes.
+@capability DiskAdmin
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsErasePassword, MODULEUID, Handle(), aDrv);
+	TInt r = SendReceive(EFsErasePassword,TIpcArgs(aDrv));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsErasePasswordReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C void RFs::StartupInitComplete(TRequestStatus& aStat)
+/**
+Noifies the file server that startup initialisation is complete.
+@param aStat Request status object.
+*/
+//
+// Notify file server that startup initialisation has been completed
+//
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsStartupInitComplete, MODULEUID, Handle(), &aStat);
+	aStat=KRequestPending;
+	RSessionBase::SendReceive(EFsStartupInitComplete,aStat);
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsStartupInitCompleteReturn, MODULEUID);
+	}
+EFSRV_EXPORT_C TInt RFs::SetLocalDriveMapping(const TDesC8& aMapping)
+//
+// Set the local drive mapping
+//
+	{
+	TRACEMULT2(UTF::EBorder, UTraceModuleEfsrv::EFsSetLocalDriveMapping, MODULEUID, Handle(), aMapping);
+	TInt r = SendReceive(EFsSetLocalDriveMapping,TIpcArgs(&aMapping));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetLocalDriveMappingReturn, MODULEUID, r);
+	return r;
+	}
+/**
+Finalise the given drive. This operation is intended to put the drive into the consistent state when it is
+safe to remove it physically or switch the power off.
+@param  aDriveNo    drive number
+@param  aMode       describes the finalisation operation, see RFs::TFinaliseDrvMode enum
+@return KErrNone on success,
+KErrArgument if the function arguments are invalid
+KErrInUse    if the drive has opened objects (files, directories etc.) and therefore can not be finalised
+KErrCorrupt  if the drive is corrupt.
+System wide error codes otherwise.
+@capability DiskAdmin
+*/
+EFSRV_EXPORT_C TInt RFs::FinaliseDrive(TInt aDriveNo, TFinaliseDrvMode aMode) const
+{
+	TRACE3(UTF::EBorder, UTraceModuleEfsrv::EFsFinaliseDrive, MODULEUID, Handle(), aDriveNo, aMode);
+TInt r = SendReceive(EFsFinaliseDrive,TIpcArgs(aDriveNo, (TInt)aMode));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsFinaliseDriveReturn, MODULEUID, r);
+	return r;
+}
+/**
+Makes the best effort to finalise all drives in the system.
+Effectively calls RFs::FinaliseDrive(..., EFinal_RW) to all present drives in the system. This makes impossible to
+analyse the error code if the finalisation of some fails.
+It is much better to use RFs::FinaliseDrive(...) specifying concrete drive number and desired finalisation mode.
+@return KErrNone, if successful; otherwise one of the other system-wide error codes.
+@capability DiskAdmin
+*/
+EFSRV_EXPORT_C TInt RFs::FinaliseDrives()
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsFinaliseDrives, MODULEUID, Handle());
+	TInt nRes;
+	TDriveList driveList;
+	TDriveInfo driveInfo;
+	nRes=DriveList(driveList);
+	if(nRes != KErrNone)
+		{
+		TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsFinaliseDrivesReturn, MODULEUID, nRes);
+	    return nRes; //-- unable to obtain drives list
+		}
+	//-- walk through all drives in the system sending them "Finalise" request
+	for (TInt i=0; i<KMaxDrives; ++i)
+{
+	    if(!driveList[i])
+	        continue;   //-- skip unexisting drive
+	    if(Drive(driveInfo, i) != KErrNone)
+	        continue;   //-- skip this drive, can't get information about it
+const TUint KDrvAttExclude = KDriveAttRom | KDriveAttRedirected; //-- the drive attributes to exlcude from the finalisation
+if(driveInfo.iDriveAtt & KDrvAttExclude)
+continue;
+	    nRes = FinaliseDrive(i, EFinal_RW);
+	    }
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsFinaliseDrivesReturn, MODULEUID, KErrNone);
+	return 	KErrNone;
+	}
+EFSRV_EXPORT_C TInt RFs::SwapFileSystem(const TDesC& aOldFileSystemName,const TDesC& aNewFileSystemName,TInt aDrive) const
+/**
+Dismount aOldFileSystemName and mount aNewFileSystemName in an atomic operation
+If swapping in the composite filesystem, and no mounts have been added to it,
+then ROFS is added to it by default.  The synchronous state of the composite filesystem
+will be used in preference to that of the old filesystem when it is mounted.
+@param aOldFileSystemName The filesystem name that is currently on the drive.
+@param aNewFileSystemName The filesystem name that is to be swapped onto the drive.
+@param aDrive The drive for which the filesystem is to be swapped.
+@return KErrNone if successful
+		KErrInUse if a dismount is pending on the drive
+		KErrNotSupported if swapping Z drive with something other then composite or if the drive is asynchronous
+		KErrAlreadyExists if swapping the composite filesystem, and it is already mounted
+		KErrNotFound If the filesystem name provided could not be found.
+@capability DiskAdmin
+*/
+	{
+	TRACEMULT4(UTF::EBorder, UTraceModuleEfsrv::EFsSwapFileSystem, MODULEUID, Handle(), aOldFileSystemName, aNewFileSystemName, aDrive);
+	TInt r = SendReceive(EFsSwapFileSystem,TIpcArgs(&aNewFileSystemName,aDrive,&aOldFileSystemName));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSwapFileSystemReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::AddCompositeMount(const TDesC& aFileSystemName,TInt aLocalDriveToMount,TInt aCompositeDrive, TBool aSync) const
+/**
+Adds a local drive to the composite filesystem.  This can only be used before
+the composite filesystem is mounted.  The local drive is mounted with the
+filesystem provided.  If any local drive added is marked to be asynchronous,
+then the whole composite drive will be treated asynchronous.
+@param aFileSystemName The filesystem of the local drive to be added.
+@param aLocalDriveToMount The local drive to be added.
+@param aCompositeDrive The drive the composite filesystem will be mounted on.
+@param aSync If the filesystem added here is preferred to be synchronous.
+@return KErrNone if successful
+		KErrNotFound If the filesystem name provided could not be found.
+		KErrNotReady If the composite filesystem has not been initialised.
+		KErrNotSupported If the composite filesystem is already mounted or the parameters passed are unsupported
+@capability DiskAdmin
+*/
+	{
+	TRACEMULT5(UTF::EBorder, UTraceModuleEfsrv::EFsAddCompositeMount, MODULEUID,
+		Handle(), aFileSystemName, aLocalDriveToMount, aCompositeDrive, aSync);
+	TInt r = SendReceive(EFsAddCompositeMount,TIpcArgs(&aFileSystemName,aLocalDriveToMount,aCompositeDrive,aSync));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsAddCompositeMountReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::ReserveDriveSpace(TInt aDriveNo, TInt aSpace)
+/**
+Reserves an area of a drive. It is intended that sensible (tm) apps will reserve a small
+area of disk for 'emergency' use in case of later out of disk situations. If the amount of
+reserved space later needs to be readjusted, this method should be called again with
+aSpace as the amount of extra space needed.
+Once space has been reserved via this method, an application can use RFs::GetReserveAccess
+to gain access to the reserved area prior to executing disk space critical sections of code.
+After the section of code is complete, the application should release access to the reserved
+area.
+For internal drives, reserved space will be lost if a reboot occurs. For removeable drives,
+reserved space may be lost if there is a media change.
+Reserved space will be cleaned up automatically when the RFs is closed.
+Each drive has a max amount of space available to be reserved, and individual sessions also
+have a max amount of space. These are defined in f32/sfile/sf_std.h as KMaxTotalDriveReserved
+and KMaxSessionDriveReserved respectively. Once space is reserved, it is only available to
+the reserving session until that session releases the reserved space.
+@param aDriveNo Which drive to reserve space on
+@param aSpace Amount of space to reserve
+@return KErrNone if successful
+KErrInUse if the session already has reserved access
+KErrArgument if aSpace is invalid (greater than KMaxSessionDriveReserved, negative number, etc.)
+KErrDiskFull if insufficient space is left on the drive to service the request
+KErrTooBig if this request would overflow the available reserve (greater than KMaxTotalDriveReserved)
+any of the possible error return codes from TDrive::Volume()
+*/
+	{
+	TRACE3(UTF::EBorder, UTraceModuleEfsrv::EFsReserveDriveSpace, MODULEUID, Handle(), aDriveNo, aSpace);
+	TInt r = SendReceive(EFsReserveDriveSpace, TIpcArgs(aDriveNo, aSpace));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsReserveDriveSpaceReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::GetReserveAccess(TInt aDriveNo)
+/**
+Get exclusive access for this session to overwrite a specific disk area, which has previously
+been reserved via RFs::ReserveDriveSpace
+@param aDriveNo drive on which to get reserved access
+@return KErrNone if successful
+KErrPermissionDenied if the drive has no spare reserved space
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsGetReserveAccess, MODULEUID, Handle(), aDriveNo);
+	TInt r = SendReceive(EFsGetReserveAccess, TIpcArgs(aDriveNo));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsGetReserveAccessReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::ReleaseReserveAccess(TInt aDriveNo)
+/**
+Release exclusive access for this session to overwrite a specific disk area.
+@param aDriveNo drive on which to release reserved access
+@return KErrNone (always returned)
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsReleaseReserveAccess, MODULEUID, Handle(), aDriveNo);
+	TInt r = SendReceive(EFsReleaseReserveAccess, TIpcArgs(aDriveNo));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsReleaseReserveAccessReturn, MODULEUID, r);
+	return r;
+	}
+/**
+Sets up a pending dismount notifier, the type of which is specified by TNotifyDismountMode.
+	EFsDismountRegisterClient - Sets up a notifier to signal the client when a dismount has been requested.
+	EFsDismountNotifyClients  - Notifies all clients (who registered using EFsDismountRegisterClient) of a pending dismount,
+					  signalling the caller when all clients have responded.
+	EFsDismountForceDismount  - Forcibly dismounts the file system without signalling any registered clients.
+This API is intended to be used to allow applications and servers to commit their data to
+the media prior to the file system being dismounted.  The application forcing the dismount
+should first attempt to notify all clients.  If all clients don't respond in a a reaonable
+time, the dismount request may be cancelled, followed by a forced dismount.
+Any handles left open on the file system shall be disassociated from the media. Attempts to
+access these resources shall return with the KErrDismounted error code.
+@param aDriveNo The drive on which to request dismount
+@param aMode A TNotifyDismountMode specifying the behaviour of the notification API
+@param aStat Completed when all clients have indicated that it is safe to remove the media
+*/
+EFSRV_EXPORT_C void RFs::NotifyDismount(TInt aDrive, TRequestStatus& aStat, TNotifyDismountMode aMode) const
+	{
+	TRACE4(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDismount, MODULEUID, Handle(), aDrive, &aStat, aMode);
+	aStat = KRequestPending;
+	RSessionBase::SendReceive(EFsNotifyDismount, TIpcArgs(aDrive,aMode,&aStat), aStat);
+	// This call is to synchronise with the driver thread as the corresponding cancel function (NotifyDismountCancel)
+	// is synchronous, so it can complete before this notify request has even been added to TDismountNotifyQue.
+	// This call guarantees that the notify request has been added to queue.
+	SendReceive(EFsSynchroniseDriveThread, TIpcArgs(aDrive));
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDismountReturn, MODULEUID);
+	}
+EFSRV_EXPORT_C void RFs::NotifyDismountCancel(TRequestStatus& aStat) const
+/**
+Cancels the oustanding dismount notifier, completing with KErrCancel.
+@param aStat The request status object associated with the request to be cancelled.
+@see RFs::NotifyDismount
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDismountCancel1, MODULEUID, Handle(), &aStat);
+	if (aStat == KRequestPending)
+		SendReceive(EFsNotifyDismountCancel, TIpcArgs(&aStat));
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDismountCancel1Return, MODULEUID);
+	}
+EFSRV_EXPORT_C void RFs::NotifyDismountCancel() const
+/**
+Cancel all oustanding dismount notifiers for this session, completing with KErrCancel.
+@see RFs::NotifyDismount
+*/
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDismountCancel2, MODULEUID, Handle());
+	SendReceive(EFsNotifyDismountCancel, TIpcArgs(NULL));
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsNotifyDismountCancel2Return, MODULEUID);
+	}
+EFSRV_EXPORT_C TInt RFs::AllowDismount(TInt aDrive) const
+/**
+Used by a client to indicate that it is safe to dismount the file system.
+This should be called after receiving a pending media removal notification.
+Not calling this does not guarantee that the dismount will not occur
+as the application requesting the dismount may decide to forcibly dismount
+after a given timeout period.
+@param aDriveNo The drive on which to allow the dismount.
+@return KErrNone if successful
+@see RFs::NotifyDismount
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsAllowDismount, MODULEUID, Handle(), aDrive);
+	TInt r = SendReceive(EFsAllowDismount, TIpcArgs(aDrive));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsAllowDismountReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::SetStartupConfiguration(TInt aCommand,TAny* aParam1,TAny* aParam2) const
+/**
+@publishedPartner
+@release
+Only can be called in estart. Licensees could use this function to configure
+file server at startup through their own version of estart.
+Currently only loader thread priority can be specified.
+@param aCommand Command indicating what aspect of file server should be configured.
+aParam1 Command specific parameter.
+aParam2 Command specific parameter.
+@return KErrNone if successful, KErrPermissionDenied if called outside estart
+*/
+{
+	TRACE4(UTF::EBorder, UTraceModuleEfsrv::EFsSetStartupConfiguration, MODULEUID, Handle(), aCommand, aParam1, aParam2);
+TInt r = SendReceive(EFsSetStartupConfiguration, TIpcArgs(aCommand,aParam1,aParam2));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetStartupConfigurationReturn, MODULEUID, r);
+	return r;
+}
+EFSRV_EXPORT_C TInt RFs::SetNotifyChange(TBool aNotifyChange)
+/**
+Enables/Disables change notification on a per-session basis.  Change notification is enabled
+by default, and can be disabled using this API.  Disabling change notification will result in
+clients of the file server not being notified of events such as directory/file changes.
+@param aNotifyChange ETrue to enable change notifications, EFalse to disable.
+@return KErrNone if successful.
+@capability DiskAdmin
+@see RFs::NotifyChange
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsSetNotifyChange, MODULEUID, Handle(), aNotifyChange);
+	TInt r = SendReceive(EFsSetSessionFlags, TIpcArgs(aNotifyChange ? EFsSessionNotifyChange: 0, aNotifyChange ? 0 : EFsSessionNotifyChange));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsSetNotifyChangeReturn, MODULEUID, r);
+	return r;
+	}
+TInt RFs::Unclamp(const RFileClamp& aHandle)
+/**
+Makes available for paging-out the media space occupied by the file identified by
+the supplied handle.
+@param aHandle handle to the file on the media.
+@return KErrNone if successful.
+@capability ???
+@see RFile::Clamp
+*/
+	{
+	TPckg<RFileClamp> pkHandle(aHandle);
+	return SendReceive(EFsUnclamp, TIpcArgs(& pkHandle));
+	}
+EFSRV_EXPORT_C TInt RFs::InitialisePropertiesFile(const TPtrC8& aPtr) const
+/**
+Sets the F32 properties file - Can only be called from the ESTART process
+@param aPtr A descriptor pointing to an INI file in ROM.
+@return KErrNone if successful.
+@capability KDiskAdmin
+*/
+	{
+	TRACE3(UTF::EBorder, UTraceModuleEfsrv::EFsInitialisePropertiesFile, MODULEUID, Handle(), aPtr.Ptr(), aPtr.Length());
+	TInt r = SendReceive(EFsInitialisePropertiesFile, TIpcArgs(aPtr.Ptr(), aPtr.Length(), ETrue));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsInitialisePropertiesFileReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::QueryVolumeInfoExt(TInt aDrive, TQueryVolumeInfoExtCmd aCommand, TDes8& aInfo) const
+/**
+@internalTechnology
+Queries specific information on volumes by commands. Available commands is defined by TQueryVolumeInfoExtCmd.
+@param aDriveNo The drive on which to query information.
+@param aCommand A command to specify which information is under query
+@param aInfo A TPckgBuf<> to carry returned results.
+@return KErrNone if successful; otherwise another system-wide error code is returned.
+@see TQueryVolumeInfoExtCmd
+@see TVolumeIOParamInfo
+*/
+	{
+	TRACE3(UTF::EBorder, UTraceModuleEfsrv::EFsQueryVolumeInfoExt, MODULEUID, Handle(), aDrive, aCommand);
+	TInt r = SendReceive(EFsQueryVolumeInfoExt, TIpcArgs(aDrive, aCommand, &aInfo));
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsQueryVolumeInfoExtReturn, MODULEUID, r);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::VolumeIOParam(TInt aDrive, TVolumeIOParamInfo& aParamInfo) const
+/**
+This function queries a set of I/O parameters on the specified volume, this includes the block size of underlying media,
+cluster size of the mounted file system and the recommended read/write buffer sizes.
+The volume information is retuned through aParamInfo. Even if VolumeIOParam() returns successful, errors
+can effect the return value of each field within aParamInfo.
+@param aDrive A drive number, specifies which volume to query.
+@param aParamInfo A TVolumeIOParamInfo containing the volume parameters.
+@return KErrNone if successful; otherwise, another system wide error code is returned.
+*/
+	{
+	TRACE2(UTF::EBorder, UTraceModuleEfsrv::EFsVolumeIOParam, MODULEUID, Handle(), aDrive);
+	TInt r = KErrNone;
+	if (!IsValidDrive(aDrive))
+		r = KErrArgument;
+	if (r == KErrNone)
+		{
+		TPckgBuf<TVolumeIOParamInfo> infoPckg;
+		r = QueryVolumeInfoExt(aDrive, EIOParamInfo, infoPckg);
+		if (r == KErrNone)
+			aParamInfo = infoPckg();
+		}
+	TRACE5(UTF::EBorder, UTraceModuleEfsrv::EFsVolumeIOParamReturn, MODULEUID,
+		r, aParamInfo.iBlockSize, aParamInfo.iClusterSize, aParamInfo.iRecReadBufSize, aParamInfo.iRecWriteBufSize);
+	return r;
+	}
+EFSRV_EXPORT_C TInt RFs::FileSystemSubType(TInt aDrive, TDes& aName) const
+/**
+This function queries the sub type of the file system mounted on the specified volume. For example, 'FAT16'
+of the Fat file system.
+TFSName is recommended as the type for aName when using this function.
+NOTE: File systems without a sub type (For example, a ROM file system), the name of the file system is
+returned (For example, 'Rom').
+@param aDrive A drive number, specifies which volume to query.
+@param aName A descriptor containing the returned sub type name or file system name.
+@return KErrNone if successful; KErrNotSuppoted if sub type is not supported;
+		otherwise another system-wide error code is returned.
+@see TFSName
+*/
+	{
+	TRACEMULT3(UTF::EBorder, UTraceModuleEfsrv::EFsFileSystemSubType, MODULEUID, Handle(), aDrive, aName);
+	TInt r = KErrNone;
+	if (!IsValidDrive(aDrive))
+		r = KErrArgument;
+	if (r == KErrNone)
+		{
+		TPckgBuf<TFSName> namePckg;
+		r = QueryVolumeInfoExt(aDrive, EFileSystemSubType, namePckg);
+		if (r == KErrNone || r == KErrNotSupported)
+			aName = namePckg();
+		}
+	TRACERET1(UTF::EBorder, UTraceModuleEfsrv::EFsFileSystemSubTypeReturn, MODULEUID, r);
+	return r;
+	}
+EXPORT_C TInt RFs::AddProxyDrive(const TDesC& aFileName)
+/**
+Loads the specified extension.
+@param aFileName The file name of the extension
+@return KErrNone, if successful; otherwise one of the other system wide error codes.
+*/
+	{
+	RLoader loader;
+	TInt r = loader.Connect();
+	if (r==KErrNone)
+		{
+		r = loader.SendReceive(ELoadFSProxyDrive, TIpcArgs(0, &aFileName, 0));
+		loader.Close();
+		}
+	return r;
+	}
+EXPORT_C TInt RFs::RemoveProxyDrive(const TDesC& aExtensionName)
+/**
+Removes the specified extension.
+@param aExtensionName The fullname of the extension, as returned from
+a call to ExtensionName().
+@return KErrNone, if successful;
+	KErrInUse if there are still drives mounted that are using it
+KErrNotFound, if aExtensionName is not found;
+otherwise one of the other system-wide error codes.
+*/
+	{
+	return(SendReceive(EFsRemoveProxyDrive,TIpcArgs(&aExtensionName)));
+	}
+/**
+Initialises a proxy drive.
+@param aProxyDriveNumber drive number that will be used to mount the proxy drive
+@param aName name of the proxy drive extension
+@param anInfo initialisation information to be passed to the proxy drive extension to initialise the drive
+@return If succesful the internal drive number used to represent the drive (equivalent to a local drive
+		number for normal drives) This number is obtained dynmically. The number will range between KMaxLocalDrives
+		and KMaxDrives.
+		KErrInUse if aProxyDriveNumber is in use or if there are not proxy drive numbers left
+		KErrArgument if aProxyDriveNumber or aName are invalid
+		Any other system wide error code.
+*/
+EXPORT_C TInt RFs::DoMountProxyDrive(const TIpcArgs& ipcArgs)
+	{
+	return SendReceive(EFsMountProxyDrive, ipcArgs);
+	}
+EXPORT_C TInt RFs::DismountProxyDrive(const TUint aProxyDriveNumber)
+/**
+Dismounts a proxy drive.
+@param aProxyDriveNumber drive number that will be used to mount the proxy drive
+@param aName name of the proxy drive extension
+@param anInfo initialisation information to be passed to the proxy drive extension to initialise the drive
+@return If succesful the internal drive number used to represent the drive (equivalent to a local drive
+		number for normal drives) This number is obtained dynmically. The number will range between KMaxLocalDrives
+		and KMaxDrives.
+		KErrInUse if aProxyDriveNumber is in use or if there are not proxy drive numbers left
+		KErrArgument if aProxyDriveNumber or aName are invalid
+		Any other system wide error code.
+*/
+	{
+	return SendReceive(EFsDismountProxyDrive,TIpcArgs(aProxyDriveNumber));
+	}
+EFSRV_EXPORT_C void RFs::Close()
+	{
+	TRACE1(UTF::EBorder, UTraceModuleEfsrv::EFsClose, MODULEUID, Handle());
+	RFTRACE_CLOSE;
+	RSessionBase::Close();
+	TRACE0(UTF::EBorder, UTraceModuleEfsrv::EFsCloseReturn, MODULEUID);
+	}

changeset 0	a41df078684a
child 4	56f325a607ea