C# Class Mosa.FileSystem.FAT.FatFileStream

Inheritance: System.IO.Stream
ファイルを表示 Open project: tgiphil/MOSA-Project Class Usage Examples

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