Johannes Weiß 4b14b7f2b1 quiescing helper & demo (#2) ...

Motivation:

In a few cases quiescing a server application is useful but it's harder
than necessary with core-NIO. Therefore this adds a helper & a
demonstration.

Modifications:

- add `QuiescingHelper` which helps users to quiesce a channel by
  collecting all accepted channels and when needed sends them the
  quiescing user event. When all collected channels have closed the
  user will be notified and can just shut down the ELG.
- added a demo implementation with a simple HTTP server that quiesces
  when receiving a signal

Result:

Make it quite easy to quiesce a server and show users how to do it.

2018-05-17 20:27:15 +02:00

..

main.swift

quiescing helper & demo (#2)

2018-05-17 20:27:15 +02:00