[ZNC-commits] [znc/znc] 0bdb18: Threaded DNS: Use a thread pool

[GitHub <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/znc/znc
  Commit: 0bdb18a427b16bfb6808a38951a7ce1c0ebebde3
      https://github.com/znc/znc/commit/0bdb18a427b16bfb6808a38951a7ce1c0ebebde3
  Author: Uli Schlachter <ps...@zn...>
  Date:   2012-02-14 (Tue, 14 Feb 2012)

  Changed paths:
    M include/znc/Socket.h
  M src/Socket.cpp

  Log Message:
  -----------
  Threaded DNS: Use a thread pool

When a DNS thread is done with its lookup, instead of existing immediately, it
now waits for another DNS lookup to do instead. This avoids the cost of
starting/stopping threads all the time.

To make sure that (for whatever reason) the number of waiting threads doesn't
get too high, threads exit if there are more than two DNS threads idling around
with nothing to do.

Fixes #132.

Signed-off-by: Uli Schlachter <ps...@zn...>