ml::MLImageFormatDiskFileHandle Class Reference

Implements reading and writing from a given file descriptor. More...

#include <mlImageFormatFileAccess.h>

Inheritance diagram for ml::MLImageFormatDiskFileHandle:

Public Member Functions
	MLImageFormatDiskFileHandle (int fd)
	Standard constructor.
	~MLImageFormatDiskFileHandle () override
	Destructor to clean up.
bool	read (MLuint8 *data, MLuint startPosition, MLuint numBytes) override
	Reads the given block and returns true if numBytes have been read.
MLErrorCode	write (MLuint startPos, const MLuint8 *data, size_t length) override
	Writes the given block.
MLint64	getFileSize () override
	Returns the current complete file size. If an error occurs, a value <0 is returned.
MLErrorCode	close () override
	Closes the file.
Public Member Functions inherited from ml::MLImageFormatAbstractFileHandle
	MLImageFormatAbstractFileHandle ()
	Standard constructor.
virtual	~MLImageFormatAbstractFileHandle ()
	Destructor to clean up. Reimplement to close the file.
MLuint8 *	read (MLuint startPosition, MLuint numBytes)
	Convenience method that reads the given block and returns an array that needs to be freed by free().

Detailed Description

Implements reading and writing from a given file descriptor.

Definition at line 55 of file mlImageFormatFileAccess.h.

Constructor & Destructor Documentation

MLImageFormatDiskFileHandle()

ml::MLImageFormatDiskFileHandle::MLImageFormatDiskFileHandle

(

int

fd

)

Standard constructor.

~MLImageFormatDiskFileHandle()

ml::MLImageFormatDiskFileHandle::~MLImageFormatDiskFileHandle ( )

override

Destructor to clean up.

Member Function Documentation

close()

MLErrorCode ml::MLImageFormatDiskFileHandle::close ( )

overridevirtual

Closes the file.

Implements ml::MLImageFormatAbstractFileHandle.

getFileSize()

MLint64 ml::MLImageFormatDiskFileHandle::getFileSize ( )

overridevirtual

Returns the current complete file size. If an error occurs, a value <0 is returned.

Implements ml::MLImageFormatAbstractFileHandle.

read()

bool ml::MLImageFormatDiskFileHandle::read ( MLuint8 *  data, MLuint  startPosition, MLuint  numBytes  )

overridevirtual

Reads the given block and returns true if numBytes have been read.

The data pointer needs to be large enough to hold numBytes bytes.

Implements ml::MLImageFormatAbstractFileHandle.

write()

MLErrorCode ml::MLImageFormatDiskFileHandle::write ( MLuint  startPos, const MLuint8 *  data, size_t  length  )

overridevirtual

Writes the given block.

Implements ml::MLImageFormatAbstractFileHandle.

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The documentation for this class was generated from the following file:

• MeVis/Foundation/Sources/MLImageFormatBase/mlImageFormatFileAccess.h