X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fthread.cpp;h=cdb0d5412a501b781e4064815eacf255b358ef66;hp=ef5ae857e30580822b5c05cf2406a413a6eb05f6;hb=ca3835857435590865fd41aac9bf4c1cda76dfc3;hpb=be77406a55d1840862237cffe153dc08a83108d3

diff --git a/src/thread.cpp b/src/thread.cpp
index ef5ae857..cdb0d541 100644
--- a/src/thread.cpp
+++ b/src/thread.cpp
@@ -200,21 +200,22 @@ void Thread::split(Position& pos, Stack* ss, Value alpha, Value beta, Value* bes
   assert(!searching);
   assert(!activePosition);
 
-  searching = true;
-
   // We have returned from the idle loop, which means that all threads are
   // finished. Note that decreasing splitPointsSize must be done under lock
   // protection to avoid a race with Thread::can_join().
-  sp.spinlock.acquire();
+  spinlock.acquire();
 
+  searching = true;
   --splitPointsSize;
   activeSplitPoint = sp.parentSplitPoint;
   activePosition = &pos;
+
+  spinlock.release();
+
+  // Split point data cannot be changed now, so no need to lock protect
   pos.set_nodes_searched(pos.nodes_searched() + sp.nodes);
   *bestMove = sp.bestMove;
   *bestValue = sp.bestValue;
-
-  sp.spinlock.release();
 }
 
 
@@ -299,9 +300,12 @@ void ThreadPool::init() {
 void ThreadPool::exit() {
 
   delete_thread(timer); // As first because check_time() accesses threads data
+  timer = nullptr;
 
   for (Thread* th : *this)
       delete_thread(th);
+
+  clear(); // Get rid of stale pointers
 }
 
 
@@ -318,10 +322,6 @@ void ThreadPool::read_uci_options() {
 
   assert(requested > 0);
 
-  // If zero (default) then set best minimum split depth automatically
-  if (!minimumSplitDepth)
-      minimumSplitDepth = requested < 8 ? 4 * ONE_PLY : 7 * ONE_PLY;
-
   while (size() < requested)
       push_back(new_thread<Thread>());
 
@@ -353,8 +353,6 @@ void ThreadPool::start_thinking(const Position& pos, const LimitsType& limits,
                                 StateStackPtr& states) {
   main()->join();
 
-  SearchTime = now(); // As early as possible
-
   Signals.stopOnPonderhit = Signals.firstRootMove = false;
   Signals.stop = Signals.failedLowAtRoot = false;