Restart services after upgrade

[Stefano Marinelli <postnet%dragas.dyndns.org@localhost>]

Hello everybody,
sometimes I use to upgrade my pkgsrc packages using the "pkg_rolling-replace 
-u". It works perfectly but sometimes some services start to behave in a weird 
mode because they've been upgraded and not restarted.
Is there a way to restart those services (or all the services, one per time) 
instead of rebooting the machine?
Of course I could manually do a "/etc/rc.d/xxx restart" but this involves that 
I should manually check and know which services (and/or deps) have been rebuilt.
Is there a more automatic way?

Thank you,
Stefano