Other low-level operations
The following list describes what happens when the specified method's message is sent to an open CfsFileDescriptor instance: 
rewind 
Rewinds the file pointer to the beginning of the file. 
size 
Answers the size of the file in bytes without affecting the position of the file pointer. 
flush 
Forces all changes to the file to be written to disk. 
Last modified date: 01/29/2015