- if (token == "quit" || token == "stop" || token == "ponderhit")
- {
- // The GUI sends 'ponderhit' to tell us to ponder on the same move the
- // opponent has played. In case Signals.stopOnPonderhit is set we are
- // waiting for 'ponderhit' to stop the search (for instance because we
- // already ran out of time), otherwise we should continue searching but
- // switch from pondering to normal search.
- if (token != "ponderhit" || Search::Signals.stopOnPonderhit)
- {
- Search::Signals.stop = true;
- Threads.main()->notify_one(); // Could be sleeping
- }
- else
- Search::Limits.ponder = false;
- }
- else if (token == "perft")
- {
- int depth;
- stringstream ss;
+ // The GUI sends 'ponderhit' to tell us the user has played the expected move.
+ // So 'ponderhit' will be sent if we were told to ponder on the same move the
+ // user has played. We should continue searching but switch from pondering to
+ // normal search. In case Threads.stopOnPonderhit is set we are waiting for
+ // 'ponderhit' to stop the search, for instance if max search depth is reached.
+ if ( token == "quit"
+ || token == "stop"
+ || (token == "ponderhit" && Threads.stopOnPonderhit))
+ Threads.stop = true;