C# Class Mosa.FileSystem.FAT.FatFileStream

Inheritance: System.IO.Stream

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Protected Properties

Property	Type	Description
canRead	bool
canWrite	bool
clusterSize	uint
currentCluster	uint
data	byte[]
directorySector	uint
directorySectorIndex	uint
fs	FatFileSystem
isDirty	bool
length	long
lengthOnDisk	long
nthCluster	uint
position	long
startCluster	uint

Public Methods

Method	Description
FatFileStream ( FatFileSystem fs, FatFileLocation location ) : System.IO	Initializes a new instance of the FatFileStream class.
FatFileStream ( FatFileSystem fs, uint startCluster, uint directorySector, uint directorySectorIndex ) : System.IO	Initializes a new instance of the FatFileStream class.
Flush ( ) : void	When overridden in a derived class, clears all buffers for this stream and causes any buffered data to be written to the underlying device.
Read ( byte buffer, int offset, int count ) : int	When overridden in a derived class, reads a sequence of bytes from the current stream and advances the position within the stream by the number of bytes read.
ReadByte ( ) : int	Reads a byte from the stream and advances the position within the stream by one byte, or returns -1 if at the end of the stream.
Seek ( long offset, SeekOrigin origin ) : long	When overridden in a derived class, sets the position within the current stream.
SetLength ( long value ) : void	When overridden in a derived class, sets the length of the current stream.
Write ( byte buffer, int offset, int count ) : void	When overridden in a derived class, writes a sequence of bytes to the current stream and advances the current position within this stream by the number of bytes written.
WriteByte ( byte value ) : void	Writes a byte to the current position in the stream and advances the position within the stream by one byte.

Protected Methods

Method	Description
NextCluster ( ) : bool	Gets the next cluster.
NextClusterExpand ( ) : bool	Gets the next cluster
ReadCluster ( uint cluster ) : void	Reads the cluster.

Method Details

FatFileStream() public method

Initializes a new instance of the FatFileStream class.

public FatFileStream ( FatFileSystem fs, FatFileLocation location ) : System.IO
fs	FatFileSystem	The fs.
location	FatFileLocation	The location.
return	System.IO

FatFileStream() public method

Initializes a new instance of the FatFileStream class.

public FatFileStream ( FatFileSystem fs, uint startCluster, uint directorySector, uint directorySectorIndex ) : System.IO
fs	FatFileSystem	The fs.
startCluster	uint	The start cluster.
directorySector	uint	The directory sector.
directorySectorIndex	uint	Index of the directory sector.
return	System.IO

Flush() public method

When overridden in a derived class, clears all buffers for this stream and causes any buffered data to be written to the underlying device.

/// An I/O error occurs. ///

public Flush ( ) : void
return	void

NextCluster() protected method

Gets the next cluster.

protected NextCluster ( ) : bool
return	bool

NextClusterExpand() protected method

Gets the next cluster

protected NextClusterExpand ( ) : bool
return	bool

Read() public method

When overridden in a derived class, reads a sequence of bytes from the current stream and advances the position within the stream by the number of bytes read.

/// The sum of and is larger than the buffer length. /// /// is null. /// /// or is negative. /// /// An I/O error occurs. /// /// The stream does not support reading. /// /// Methods were called after the stream was closed. ///

public Read ( byte buffer, int offset, int count ) : int
buffer	byte	An array of bytes. When this method returns, the buffer contains the specified byte array with the values between and ( + - 1) replaced by the bytes read from the current source.
offset	int	The zero-based byte offset in at which to begin storing the data read from the current stream.
count	int	The maximum number of bytes to be read from the current stream.
return	int

ReadByte() public method

Reads a byte from the stream and advances the position within the stream by one byte, or returns -1 if at the end of the stream.

/// The stream does not support reading. /// /// Methods were called after the stream was closed. ///

public ReadByte ( ) : int
return	int

ReadCluster() protected method

Reads the cluster.

protected ReadCluster ( uint cluster ) : void
cluster	uint	The cluster.
return	void

Seek() public method

When overridden in a derived class, sets the position within the current stream.

/// An I/O error occurs. /// /// The stream does not support seeking, such as if the stream is constructed from a pipe or console output. /// /// Methods were called after the stream was closed. ///

public Seek ( long offset, SeekOrigin origin ) : long
offset	long	A byte offset relative to the parameter.
origin	SeekOrigin	A value of type indicating the reference point used to obtain the new position.
return	long

SetLength() public method

When overridden in a derived class, sets the length of the current stream.

/// An I/O error occurs. /// /// The stream does not support both writing and seeking, such as if the stream is constructed from a pipe or console output. /// /// Methods were called after the stream was closed. ///

public SetLength ( long value ) : void
value	long	The desired length of the current stream in bytes.
return	void

Write() public method

When overridden in a derived class, writes a sequence of bytes to the current stream and advances the current position within this stream by the number of bytes written.

/// The sum of and is greater than the buffer length. /// /// is null. /// /// or is negative. /// /// An I/O error occurs. /// /// The stream does not support writing. /// /// Methods were called after the stream was closed. ///

public Write ( byte buffer, int offset, int count ) : void
buffer	byte	An array of bytes. This method copies bytes from to the current stream.
offset	int	The zero-based byte offset in at which to begin copying bytes to the current stream.
count	int	The number of bytes to be written to the current stream.
return	void

WriteByte() public method

Writes a byte to the current position in the stream and advances the position within the stream by one byte.

/// An I/O error occurs. /// /// The stream does not support writing, or the stream is already closed. /// /// Methods were called after the stream was closed. ///

public WriteByte ( byte value ) : void
value	byte	The byte to write to the stream.
return	void

Property Details

canRead protected_oe property

protected bool canRead
return	bool

canWrite protected_oe property

protected bool canWrite
return	bool

clusterSize protected_oe property

protected uint clusterSize
return	uint

currentCluster protected_oe property

protected uint currentCluster
return	uint

data protected_oe property

protected byte[] data
return	byte[]

directorySector protected_oe property

protected uint directorySector
return	uint

directorySectorIndex protected_oe property

protected uint directorySectorIndex
return	uint

fs protected_oe property

protected FatFileSystem,Mosa.FileSystem.FAT fs
return	FatFileSystem

isDirty protected_oe property

protected bool isDirty
return	bool

length protected_oe property

protected long length
return	long

lengthOnDisk protected_oe property

protected long lengthOnDisk
return	long

nthCluster protected_oe property

protected uint nthCluster
return	uint

position protected_oe property

protected long position
return	long

startCluster protected_oe property

protected uint startCluster
return	uint