If the configuration variable
daemonise is set to true, Polipo
will run as a daemon: it will fork and detach from its controlling
terminal (if any). The variable
daemonise defaults to false.
When Polipo is run as a daemon, it can be useful to get it to
atomically write its pid to a file. If the variable
pidFile is defined, it should be the name of a file where
Polipo will write its pid. If the file already exists when it
is started, Polipo will refuse to run.