coreos/etcd — pull request #1815 by ravigadde (2014-12-01 07:00:40+00:00)
Title: Update libraries-and-tools.md

Lock implementation for etcd. It has three go routines:
a) acquire - loop that watches for the lock to be free and tries to acquire it.
b) watch - to watch for lock changes
c) refresh - to refresh the ttl when the lock is acquired

All the changes in lock ownership are notified on the events channel. Any feedback welcome!