Ensure function boundaries for threads state changes

[stockfish] / src / thread.h

diff --git a/src/thread.h b/src/thread.h
index 558a6752da9c679cfa59f6c4b614356703df2680..14924bf2280662be82523e81e94d09a7136d1c16 100644 (file)
--- a/src/thread.h
+++ b/src/thread.h
@@ -26,7 +26,8 @@
 //// Includes
 ////
 
-#include "history.h"
+#include <cstring>
+
 #include "lock.h"
 #include "movepick.h"
 #include "position.h"
@@ -38,6 +39,7 @@
 ////
 
 const int THREAD_MAX = 8;
+const int ACTIVE_SPLIT_POINTS_MAX = 8;
 
 
 ////
@@ -46,14 +48,14 @@ const int THREAD_MAX = 8;
 
 struct SplitPoint {
   SplitPoint *parent;
-  Position pos;
-  SearchStack sstack[THREAD_MAX][PLY_MAX];
+  const Position* pos;
+  SearchStack sstack[THREAD_MAX][PLY_MAX_PLUS_2];
   SearchStack *parentSstack;
   int ply;
   Depth depth;
   volatile Value alpha, beta, bestValue;
+  Value futilityValue;
   bool pvNode;
-  Bitboard dcCandidates;
   int master, slaves[THREAD_MAX];
   Lock lock;
   MovePicker *mp;
@@ -64,17 +66,19 @@ struct SplitPoint {
 
 
 struct Thread {
+
+  Thread() { memset(this, 0, sizeof(Thread)); }
+
   SplitPoint *splitPoint;
-  int activeSplitPoints;
+  volatile int activeSplitPoints;
   uint64_t nodes;
   uint64_t betaCutOffs[2];
-  bool failHighPly1;
   volatile bool stop;
   volatile bool running;
   volatile bool idle;
+  volatile bool sleeping;
   volatile bool workIsWaiting;
   volatile bool printCurrentLine;
-  History H;
   unsigned char pad[64]; // set some distance among local data for each thread
 };