In this case SF stop searching and goes sleeping
waiting for a stop / ponderhit before to return
best move. So when a "stop" arrives we need to wake
up the main thread again.
Another regression introduced by
3aa471f2a9cb,
hopefully the last one.
Thanks to Otello1984 to reporting this.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Thread* main = threads[0];
lock_grab(main->sleepLock);
+ cond_signal(main->sleepCond); // In case is waiting for stop or ponderhit
while (!main->do_sleep) cond_wait(sleepCond, main->sleepLock);
lock_release(main->sleepLock);
}