dmlite::IOHandler Class Reference

IO interface. More...

#include <io.h>

Public Types
enum	Whence { kSet = SEEK_SET, kCur = SEEK_CUR, kEnd = SEEK_END }

Public Member Functions
virtual	~IOHandler ()
	Virtual destructor.
virtual void	close (void)=0 throw (DmException)
	Close.
virtual size_t	read (char *buffer, size_t count)=0 throw (DmException)
virtual size_t	write (const char *buffer, size_t count)=0 throw (DmException)
virtual void	seek (off_t offset, Whence whence)=0 throw (DmException)
virtual off_t	tell (void)=0 throw (DmException)
	Return the cursor position.
virtual void	flush (void)=0 throw (DmException)
	Flush the buffer.
virtual bool	eof (void)=0 throw (DmException)
	Return true if end of file.

Detailed Description

IO interface.

Member Enumeration Documentation

enum dmlite::IOHandler::Whence

Enumerator:

kSet	Beginning of the file.
kCur	Current position.
kEnd	End of file.

Constructor & Destructor Documentation

IOHandler::~IOHandler ( )

virtual

Virtual destructor.

Member Function Documentation

virtual void dmlite::IOHandler::close ( void  ) throw (DmException)

pure virtual

Close.

virtual bool dmlite::IOHandler::eof ( void  ) throw (DmException)

pure virtual

Return true if end of file.

virtual void dmlite::IOHandler::flush ( void  ) throw (DmException)

pure virtual

Flush the buffer.

virtual size_t dmlite::IOHandler::read ( char *  buffer, size_t  count  ) throw (DmException)

pure virtual

Read.

Parameters

buffer	Where to store the data.
count	Number of bytes to read.

Returns

Number of bytes actually read.

virtual void dmlite::IOHandler::seek ( off_t  offset, Whence  whence  ) throw (DmException)

pure virtual

Move the cursor.

Parameters

offset	The offset.
whence	Reference.

virtual off_t dmlite::IOHandler::tell ( void  ) throw (DmException)

pure virtual

Return the cursor position.

virtual size_t dmlite::IOHandler::write ( const char *  buffer, size_t  count  ) throw (DmException)

pure virtual

Write.

Parameters

buffer	Data to write.
count	Number of bytes to write.

Returns

Number of bytes actually written.

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

• p/io.h
• Defaults.cpp