[hb-shape-threads] Fix tsan race

3 years ago · e3d5a117a3
parent 33c990f0a9
commit e3d5a117a3
1 changed files with 4 additions and 1 deletions
--- a/test/threads/hb-shape-threads.cc
+++ b/test/threads/hb-shape-threads.cc
@ -161,7 +161,10 @@ static void test_backend (backend_t backend,
  for (unsigned i = 0; i < num_threads; i++)
    threads.push_back (std::thread (shape, variable, backend, test_input));

-  ready = true;
+  {
+    std::unique_lock<std::mutex> lk (cv_m);
+    ready = true;
+  }
  cv.notify_all();

  for (unsigned i = 0; i < num_threads; i++)