Fix endless reaparenting loop

[stockfish] / src / thread.cpp

diff --git a/src/thread.cpp b/src/thread.cpp
index faa3a5716aa1570945c5dcaea7cb345ca0e75455..631834da4b9f60c159facb502b5f7e2c0ac3fe04 100644 (file)
--- a/src/thread.cpp
+++ b/src/thread.cpp
@@ -34,15 +34,11 @@ namespace { extern "C" {
  // start_routine() is the C function which is called when a new thread
  // is launched. It is a wrapper to member function pointed by start_fn.
 
- long start_routine(Thread* th) {
-
-   Threads.set_this_thread(th); // Save pointer into thread local storage
-   (th->*(th->start_fn))();
-   return 0;
- }
+ long start_routine(Thread* th) { (th->*(th->start_fn))(); return 0; }
 
 } }
 
+
 // Thread c'tor starts a newly-created thread of execution that will call
 // the idle loop function pointed by start_fn going immediately to sleep.
 
@@ -205,12 +201,10 @@ bool Thread::is_available_to(Thread* master) const {
 
 void ThreadsManager::init() {
 
-  tls_init(tlsKey);
   cond_init(sleepCond);
   lock_init(splitLock);
   timer = new Thread(&Thread::timer_loop);
   threads.push_back(new Thread(&Thread::main_loop));
-  set_this_thread(main_thread()); // Use main thread's resources
   read_uci_options();
 }
 
@@ -225,7 +219,6 @@ ThreadsManager::~ThreadsManager() {
   delete timer;
   lock_destroy(splitLock);
   cond_destroy(sleepCond);
-  tls_destroy(tlsKey);
 }
 
 
@@ -314,18 +307,19 @@ Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
   assert(beta <= VALUE_INFINITE);
   assert(depth > DEPTH_ZERO);
 
-  Thread* master = this_thread();
+  Thread* master = pos.this_thread();
 
   if (master->splitPointsCnt >= MAX_SPLITPOINTS_PER_THREAD)
       return bestValue;
 
   // Pick the next available split point from the split point stack
-  SplitPoint* sp = &master->splitPoints[master->splitPointsCnt++];
+  SplitPoint* sp = &master->splitPoints[master->splitPointsCnt];
 
   sp->parent = master->curSplitPoint;
   sp->master = master;
   sp->cutoff = false;
   sp->slavesMask = 1ULL << master->idx;
+  sp->allSlavesRunning = true;
   sp->depth = depth;
   sp->bestMove = *bestMove;
   sp->threatMove = threatMove;
@@ -364,6 +358,8 @@ Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
               break;
       }
 
+  master->splitPointsCnt++;
+
   lock_release(splitLock);
   lock_release(sp->lock);