From: Marco Costalba <mcostalba@gmail.com>
Date: Sun, 13 Jan 2013 23:32:30 +0000 (+0100)
Subject: Polymorphic Thread hierarchy
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=d1143794a01cd0540cf47e3415815cd60cde9422;hp=d1143794a01cd0540cf47e3415815cd60cde9422

Polymorphic Thread hierarchy

Subclass MainThread and TimerThread and declare
idle_loop() virtual. This allow us to cleanly
remove a good bunch of hacks, relying on C++
polymorphism to do the job.

No functional change.
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