watcher.erl - a library for monitoring line oriented files
Copyright (c) 2009 Hynek Schlawack <hs+git@ox.cx>
All Rights Reserved
It consists practically only of one public function: `watch/2' which
is started with the file name to monitor (most probably a log file)
and a PID which is notified
1. When a new line arrives:
{line, "text"}
2. The file has been rotated (ie. moved away and replaced by an empty
file:
file_rotated
.
For convenience, there is also a function `start/2' which takes the
same arguments and whose only purpose is to spawn `watch/2' and return
the PID.