// Set _should_block.
// Call this from the VM, with Threads_lock held and a safepoint requested.

void CompileBroker::set_should_block() {

  {- -------------------------------------------
  (1) (assert)
      ---------------------------------------- -}

      assert(Threads_lock->owner() == Thread::current(), "must have threads lock");
      assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint already");

  {- -------------------------------------------
  (1) (トレース出力)
      ---------------------------------------- -}

    #ifndef PRODUCT
      if (PrintCompilation && (Verbose || WizardMode))
        tty->print_cr("notifying compiler thread pool to block");
    #endif

  {- -------------------------------------------
  (1) _should_block フィールドを true にするだけ.
      ---------------------------------------- -}

      _should_block = true;
    }