RRawDisk Class Reference

class RRawDisk : public RSubSessionBase

Enables direct disk access.

No other resources can access the disk while direct access to it is in effect.

This class is not intended for user derivation.

Inherits from

Inherited Functions
	RSubSessionBase::CloseSubSession(TInt)
	RSubSessionBase::CreateAutoCloseSubSession(RSessionBase &,TInt,const TIpcArgs &)
	RSubSessionBase::CreateSubSession(const RSessionBase &,TInt)
	RSubSessionBase::CreateSubSession(const RSessionBase &,TInt,const TIpcArgs &)
	RSubSessionBase::RSubSessionBase()
	RSubSessionBase::Send(TInt)const
	RSubSessionBase::Send(TInt,const TIpcArgs &)const
	RSubSessionBase::SendReceive(TInt)const
	RSubSessionBase::SendReceive(TInt,TRequestStatus &)const
	RSubSessionBase::SendReceive(TInt,const TIpcArgs &)const
	RSubSessionBase::SendReceive(TInt,const TIpcArgs &,TRequestStatus &)const
	RSubSessionBase::Session()const
	RSubSessionBase::SubSessionHandle()const

Private Attributes
TInt	iDrive

IMPORT_C void

(

)

Closes the direct access channel to the disk, and allows other resources to access the disk.

Opens a direct access channel to the disk.

Other resources are disabled from accessing the disk until Close() is called.

Note that if any resources are currently open on the disk, an error is returned.

RFs & aFs	The file server session.
TInt aDrive	The drive containing the disk to be accessed. Specify a drive in the range EDriveA to EDriveZ for drives A to Z.

Reads directly from the disk.

The function reads a number of bytes into the specified descriptor from the disk, beginning at the specified position.

panic: User In debug builds, the media driver panics if aPos is larger than the size of the physical media or if the end address, given by aPos + the maximum length of the descriptor, is greater than the size of the physical media.

TInt64 aPos	The position on the disk at which to begin reading.
TDes8 & aDes	The descriptor into which data is to be read. On return aDes contains the data read.

Writes directly to the disk.

The function writes the contents of the specified descriptor to the disk at position aPos.

panic: User In debug builds, the media driver panics if aPos is larger than the size of the physical media or if the end address, given by aPos + the maximum length of the descriptor, is greater than the size of the physical media.

TInt64 aPos	The position at which to begin writing.
TDesC8 & aDes	The descriptor containing the data to be written to the disk.

iDrive

[private]