C# Class Mosa.FileSystem.FAT.FatFileSystem

Inheritance: GenericFileSystem

Datei anzeigen Open project: tgiphil/MOSA-Project Class Usage Examples

Protected Properties

Property	Type	Description
lastFreeHint	uint

Public Methods

Method	Description
AddCluster ( uint lastCluster ) : uint	Adds the cluster.
AllocateFirstCluster ( uint directorySector, uint directorySectorIndex ) : uint	Allocates the first cluster.
CreateFile ( string filename, FatFileAttributes fileAttributes ) : FatFileLocation	Creates the file.
CreateFile ( string filename, FatFileAttributes fileAttributes, uint directoryCluster ) : FatFileLocation	Creates the file.
CreateVFSMount ( ) : IFileSystem	Creates the VFS mount.
Delete ( uint targetCluster, uint directorySector, uint directorySectorIndex ) : void	Deletes the specified file or directory
FatFileSystem ( IPartitionDevice partition ) : Mosa.ClassLib	Initializes a new instance of the FatFileSystem class.
FindEntry ( string name ) : FatFileLocation
FindNthCluster ( uint start, uint count ) : uint	Finds the Nth cluster.
Format ( FatSettings fatSettings ) : bool	Formats the partition with specified fat settings.
GetFileSize ( uint directoryBlock, uint index ) : uint	Gets the size of the file.
GetNextCluster ( uint start ) : uint	Gets the next cluster.
GetSectorByCluster ( uint cluster ) : uint	Gets the sector by cluster.
GetSectorsPerClusterByTotalSectors ( FatType type, uint sectors ) : byte	Gets the sectors per cluster by total sectors.
ReadCluster ( uint cluster, byte block ) : bool	Reads the cluster.
ReadCluster ( uint cluster ) : byte[]	Reads the cluster.
SetVolumeName ( string volumeName ) : void	Sets the name of the volume.
UpdateLength ( uint size, uint firstCluster, uint directorySector, uint directorySectorIndex ) : void	Updates the length.
WriteCluster ( uint cluster, byte block ) : bool	Writes the cluster.

Protected Methods

Method	Description
AllocateCluster ( ) : uint	Allocates the cluster.
FreeClusterChain ( uint firstCluster ) : bool	Frees the cluster chain.
GetClusterBySector ( uint sector ) : uint	Gets the cluster by sector.
GetClusterEntryValue ( uint cluster ) : uint	Gets the cluster entry value.
IsClusterBad ( uint cluster ) : bool	Determines whether [is cluster bad] [the specified cluster].
IsClusterFree ( uint cluster ) : bool	Determines whether [is cluster free] [the specified cluster].
IsClusterLast ( uint cluster ) : bool	Determines whether [is cluster last] [the specified cluster].
IsClusterReserved ( uint cluster ) : bool	Determines whether [is cluster reserved] [the specified cluster].
IsValidFatCharacter ( char c ) : bool	Determines whether [is valid fat character] [the specified c].
ReadBootSector ( ) : bool	Reads the boot sector.
SetClusterEntryValue ( uint cluster, uint nextcluster ) : bool	Sets the cluster entry value.

Private Methods

Method	Description
ExtractFileName ( byte directory, uint index ) : string	Extracts the name of the file.
FindEntry ( FatFileSystem compare, uint startCluster ) : FatFileLocation	Finds the entry.
GetClusterEntry ( byte data, uint index, FatType type ) : uint	Gets the cluster entry.

Method Details

AddCluster() public method

Adds the cluster.

public AddCluster ( uint lastCluster ) : uint
lastCluster	uint	The last cluster.
return	uint

AllocateCluster() protected method

Allocates the cluster.

protected AllocateCluster ( ) : uint
return	uint

AllocateFirstCluster() public method

Allocates the first cluster.

public AllocateFirstCluster ( uint directorySector, uint directorySectorIndex ) : uint
directorySector	uint	The directory sector.
directorySectorIndex	uint	Index of the directory sector.
return	uint

CreateFile() public method

Creates the file.

public CreateFile ( string filename, FatFileAttributes fileAttributes ) : FatFileLocation
filename	string	The filename.
fileAttributes	FatFileAttributes	The file attributes.
return	FatFileLocation

CreateFile() public method

Creates the file.

public CreateFile ( string filename, FatFileAttributes fileAttributes, uint directoryCluster ) : FatFileLocation
filename	string	The filename.
fileAttributes	FatFileAttributes	The file attributes.
directoryCluster	uint	The directory cluster.
return	FatFileLocation

CreateVFSMount() public method

Creates the VFS mount.

public CreateVFSMount ( ) : IFileSystem
return	IFileSystem

Delete() public method

Deletes the specified file or directory

public Delete ( uint targetCluster, uint directorySector, uint directorySectorIndex ) : void
targetCluster	uint	The target cluster.
directorySector	uint	The directory sector.
directorySectorIndex	uint	Index of the directory sector.
return	void

FatFileSystem() public method

Initializes a new instance of the FatFileSystem class.

public FatFileSystem ( IPartitionDevice partition ) : Mosa.ClassLib
partition	IPartitionDevice	The partition.
return	Mosa.ClassLib

FindEntry() public method

public FindEntry ( string name ) : FatFileLocation
name	string
return	FatFileLocation

FindNthCluster() public method

Finds the Nth cluster.

public FindNthCluster ( uint start, uint count ) : uint
start	uint	The start.
count	uint	The count.
return	uint

Format() public method

Formats the partition with specified fat settings.

public Format ( FatSettings fatSettings ) : bool
fatSettings	FatSettings	The fat settings.
return	bool

FreeClusterChain() protected method

Frees the cluster chain.

protected FreeClusterChain ( uint firstCluster ) : bool
firstCluster	uint	The first cluster.
return	bool

GetClusterBySector() protected method

Gets the cluster by sector.

protected GetClusterBySector ( uint sector ) : uint
sector	uint	The sector.
return	uint

GetClusterEntryValue() protected method

Gets the cluster entry value.

protected GetClusterEntryValue ( uint cluster ) : uint
cluster	uint	The cluster.
return	uint

GetFileSize() public method

Gets the size of the file.

public GetFileSize ( uint directoryBlock, uint index ) : uint
directoryBlock	uint	The directory block.
index	uint	The index.
return	uint

GetNextCluster() public method

Gets the next cluster.

public GetNextCluster ( uint start ) : uint
start	uint	The start.
return	uint

GetSectorByCluster() public method

Gets the sector by cluster.

public GetSectorByCluster ( uint cluster ) : uint
cluster	uint	The cluster.
return	uint

GetSectorsPerClusterByTotalSectors() public static method

Gets the sectors per cluster by total sectors.

public static GetSectorsPerClusterByTotalSectors ( FatType type, uint sectors ) : byte
type	FatType	The type.
sectors	uint	The sectors.
return	byte

IsClusterBad() protected method

Determines whether [is cluster bad] [the specified cluster].

protected IsClusterBad ( uint cluster ) : bool
cluster	uint	The cluster.
return	bool

IsClusterFree() protected method

Determines whether [is cluster free] [the specified cluster].

protected IsClusterFree ( uint cluster ) : bool
cluster	uint	The cluster.
return	bool

IsClusterLast() protected method

Determines whether [is cluster last] [the specified cluster].

protected IsClusterLast ( uint cluster ) : bool
cluster	uint	The cluster.
return	bool

IsClusterReserved() protected method

Determines whether [is cluster reserved] [the specified cluster].

protected IsClusterReserved ( uint cluster ) : bool
cluster	uint	The cluster.
return	bool

IsValidFatCharacter() protected static method

Determines whether [is valid fat character] [the specified c].

protected static IsValidFatCharacter ( char c ) : bool
c	char	The c.
return	bool

ReadBootSector() protected method

Reads the boot sector.

protected ReadBootSector ( ) : bool
return	bool

ReadCluster() public method

Reads the cluster.

public ReadCluster ( uint cluster, byte block ) : bool
cluster	uint	The cluster.
block	byte	The block.
return	bool

ReadCluster() public method

Reads the cluster.

public ReadCluster ( uint cluster ) : byte[]
cluster	uint	The cluster.
return	byte[]

SetClusterEntryValue() protected method

Sets the cluster entry value.

protected SetClusterEntryValue ( uint cluster, uint nextcluster ) : bool
cluster	uint	The cluster.
nextcluster	uint	The next cluster.
return	bool

SetVolumeName() public method

Sets the name of the volume.

public SetVolumeName ( string volumeName ) : void
volumeName	string	Name of the volume.
return	void

UpdateLength() public method

Updates the length.

public UpdateLength ( uint size, uint firstCluster, uint directorySector, uint directorySectorIndex ) : void
size	uint	The size.
firstCluster	uint	The first cluster.
directorySector	uint	The directory sector.
directorySectorIndex	uint	Index of the directory sector.
return	void

WriteCluster() public method

Writes the cluster.

public WriteCluster ( uint cluster, byte block ) : bool
cluster	uint	The cluster.
block	byte	The block.
return	bool

Property Details

lastFreeHint protected_oe property

protected uint lastFreeHint
return	uint