What is elegant way to do configuration on server app

[Chris Angelico]

On Fri, Mar 27, 2015 at 7:28 PM, Jerry OELoo <oyljerry at gmail.com> wrote:
> Hi Grant:
> Why use SIGHUP, Does it has something to do with configure file
> modification? I don't get it. Thank you.

Long tradition. I have no idea why that particular signal is used, but
it's a well-known convention. In any case, it's certainly sensible to
use a signal; it's an easy way for one process to notify another,
without needing much overhead or anything.

ChrisA