new rlm_sql connection pool logic

[Arran Cudbard-Bell]

> The next thing is to limit the number of connections to one if there
> are no threads.  It makes no sense to open a dozen connections when the
> server is running in debugging mode.

Well, you know, except for debugging ? 

-Arran

Arran Cudbard-Bell
a.cudbardb at freeradius.org

Betelwiki, Betelwiki, Betelwiki.... http://wiki.freeradius.org/ !