When I wrote my first article on CodeGuru,
Expandable, Data Type-Neutral Buffer Class,
I realized that there are lot of people seeking the code
for a circular file.
Hence, I developed my own circular file implementation, and want
to share this. Its interface is very simple. Everything basically
revolves around the Addline(CString) method which you use to
add a line at a time to the current file.
Constructors:
-
//Create New File with Name "default Log" with 100 Lines CCirFile();
//Create File with Name strFile Name But 100 lines
CCirFile(char * strFileName);
//You can specify file Name and File Size
CCirFile(char * ,int );
Functions
-
//All file initialization here int InitFile();
//You should call this function to add new line at start of file
int AddLine( CString );
Limitations
- It’s not a true circular file implementation.
It adds each new line to the beginning of the file,
and moves the remaining lines, truncating the last line
- It’s slow and performance could be dramatically increased via
the use of multiple threads.