- // We have returned from the idle loop, which means that all threads are
- // finished. Note that setting is_searching and decreasing splitPointsCnt is
- // done under lock protection to avoid a race with Thread::is_available_to().
- lock_grab(sp->lock); // To protect sp->nodes
- lock_grab(splitLock);
-
- master->is_searching = true;
- master->splitPointsCnt--;
- master->curSplitPoint = sp->parent;
- pos.set_nodes_searched(pos.nodes_searched() + sp->nodes);
- *bestMove = sp->bestMove;
-
- lock_release(splitLock);
- lock_release(sp->lock);
-
- return sp->bestValue;
-}
-
-// Explicit template instantiations
-template Value ThreadPool::split<false>(Position&, Stack*, Value, Value, Value, Move*, Depth, Move, int, MovePicker*, int);
-template Value ThreadPool::split<true>(Position&, Stack*, Value, Value, Value, Move*, Depth, Move, int, MovePicker*, int);
-
-
-// set_timer() is used to set the timer to trigger after msec milliseconds.
-// If msec is 0 then timer is stopped.
-
-void ThreadPool::set_timer(int msec) {
-
- lock_grab(timer->sleepLock);
- timer->maxPly = msec;
- cond_signal(timer->sleepCond); // Wake up and restart the timer
- lock_release(timer->sleepLock);
-}
-
-
-// wait_for_search_finished() waits for main thread to go to sleep, this means
-// search is finished. Then returns.
-
-void ThreadPool::wait_for_search_finished() {
-
- Thread* t = main_thread();
- lock_grab(t->sleepLock);
- cond_signal(t->sleepCond); // In case is waiting for stop or ponderhit
- while (!t->do_sleep) cond_wait(sleepCond, t->sleepLock);
- lock_release(t->sleepLock);
-}
-
-
-// start_searching() wakes up the main thread sleeping in main_loop() so to start
-// a new search, then returns immediately.
-
-void ThreadPool::start_searching(const Position& pos, const LimitsType& limits,
- const std::vector<Move>& searchMoves) {
- wait_for_search_finished();
-
- SearchTime.restart(); // As early as possible
-
- Signals.stopOnPonderhit = Signals.firstRootMove = false;
- Signals.stop = Signals.failedLowAtRoot = false;
-
- RootPosition = pos;
- Limits = limits;
- RootMoves.clear();
-
- for (MoveList<LEGAL> ml(pos); !ml.end(); ++ml)
- if (searchMoves.empty() || count(searchMoves.begin(), searchMoves.end(), ml.move()))
- RootMoves.push_back(RootMove(ml.move()));