From: Marco Costalba <mcostalba@gmail.com>
Date: Sun, 13 Jan 2013 22:51:15 +0000 (+0100)
Subject: Re-add the hack
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=99ae47716ac605286e60634632cb5eccac9a63ce;ds=sidebyside

Re-add the hack

This reverts commit 869c9244101

I misunderstood here. Actually it can happen that
thread is created but still not entered idle_loop
and at the same time start_searching() is called.

Becuase 'do_sleep' is set start_searching() will
set it to false and start the search, but when,
at last, the thread enters idle_loop(), resets
the flag and goes to sleep: not what we want.

Revert the hack waiting for a better solution
in the next patches.

No functional change.
---

diff --git a/src/thread.cpp b/src/thread.cpp
index d674c3ab..1f5dc823 100644
--- a/src/thread.cpp
+++ b/src/thread.cpp
@@ -49,7 +49,8 @@ Thread::Thread(Fn fn) : splitPoints() {
   curSplitPoint = NULL;
   start_fn = fn;
   idx = Threads.size();
-  do_sleep = true;
+
+  do_sleep = (fn != &Thread::main_loop); // Avoid a race with start_searching()
 
   if (!thread_create(handle, start_routine, this))
   {