ipc in NT

Guido,
        You appear to be doing the following with NT:

for each ipc that is created, you setup a new thread that handshakes
with the main thread, and then spawns a child, using a socketpair aka
pipe for communication with the child (for both TCP and UDP ipc).
For UDP ipc you then post spawn, hand the child UDP file descriptors and
use them thereafter.

Is that accurate?

Is the reason for the extra thread to prevent squid blocking when
waiting on a PIPE ?

If so, could we get rid of the extra thread for UDP helpers as they
don't use pipes once they are up and running?

Rob