I did see ats_pagespeed. I was looking for a socket interface and not a file interface.
> On Jan 21, 2016, at 9:36 AM, Leif Hedstrom <zw...@apache.org> wrote: > > >> On Jan 21, 2016, at 8:03 AM, Alan Carroll >> <solidwallofc...@yahoo-inc.com.INVALID> wrote: >> >> The closest I could find is ats_pagespeed.This doesn't poll an external >> server but it does poll a configuration file. Basically you set up a thread >> using TSThreadCreate(), have it do the polling, and then communicate its >> results back via thread safe containers. I think the pagespeed one works by >> creating a duplicate structure on configuration change, then atomically >> swapping pointers. You still need to reference count so the old structure >> can be cleaned up. Thread safe queues would work as well. > > > Fwiw, The health_check plugin does the same (has a thread checking to changes > on the file system). > > — Leif >