This repository provides the circbuf package. This provides a Buffer object
which is a circular (or ring) buffer. It has a fixed size, but can be written
to infinitely. Only the last size bytes are ever retained. The buffer implements
the io.Writer interface.
Full documentation can be found on Godoc
The circbuf package is very easy to use:
buf, _ := NewBuffer(6)
buf.Write([]byte("hello world"))
if string(buf.Bytes()) != " world" {
panic("should only have last 6 bytes!")
}