LogReplayInputStream Class Reference

Log replay input stream. More...

Public Member Functions
virtual size_t	read (char *const data, size_t size)=0
	Called when log player wants to read data from stream. More...

Protected Member Functions
virtual	~LogReplayInputStream ()
	Deletion is not supposed through interface of this class.

Detailed Description

Log replay input stream.

Member Function Documentation

virtual size_t read ( char *const  data, size_t  size  )

pure virtual

Called when log player wants to read data from stream.

Parameters

data	buffer to read data into
size	max size to read

Returns

0 in case of EOF, actually read bytes count otherwise

Note

Implementation is free to throw any exceptions. Player would react differently depending on exception type.

Particularly:

• std::ios_base::failure – serious problem on getting data means do not try any further reading from stream and terminate playing;

Absolutely all exceptions are reported via error handler. Description string will be available for children of std::exception.