Add missing GCFreeZone calls for semaphores and condition variables.

Author: Apprentice-Alchemist

src/hx/Thread.cpp

@@ -533,16 +533,19 @@ class hxSemaphore : public hx::Object {
 #endif
 
   void Acquire() {
+	hx::EnterGCFreeZone();
 #if HX_WINDOWS
 	WaitForSingleObject(sem, INFINITE);
 #elif defined(POSIX_SEMAPHORE)
     sem_wait(&sem);
 #elif defined(APPLE_SEMAPHORE)
     dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
 #endif
+	hx::ExitGCFreeZone();
   }
 
   bool TryAcquire(double timeout) {
+	hx::AutoGCFreeZone blocking;
 #ifdef HX_WINDOWS
     return WaitForSingleObject(sem, (DWORD)((FLOAT)timeout * 1000.0)) == 0;
 #elif defined(POSIX_SEMAPHORE)
@@ -678,13 +681,15 @@ class hxCondition : public hx::Object {
   }
 
   void Acquire() {
+	hx::EnterGCFreeZone();
 #ifdef HX_WINDOWS
 #ifndef HXCPP_WINXP_COMPAT
 	  EnterCriticalSection(&cs);
 #endif
 #else
 	  pthread_mutex_lock(mutex);
 #endif
+	hx::ExitGCFreeZone();
   }
 
   bool TryAcquire() {
@@ -710,16 +715,19 @@ class hxCondition : public hx::Object {
   }
 
   void Wait() {
+	hx::EnterGCFreeZone();
 #ifdef HX_WINDOWS
 #ifndef HXCPP_WINXP_COMPAT
 	  SleepConditionVariableCS(&cond,&cs,INFINITE);
 #endif
 #else
 	  pthread_cond_wait(cond, mutex);
 #endif
+	hx::ExitGCFreeZone();
   }
 
   bool TimedWait(double timeout) {
+    hx::AutoGCFreeZone blocking;
 #ifdef HX_WINDOWS
 #ifndef HXCPP_WINXP_COMPAT
 	  return (bool)SleepConditionVariableCS(&cond, &cs, (DWORD)((FLOAT)timeout * 1000.0));