592     std::atomic<pid_t> tid1{}, tid2{}, tid3{}, tid4{};  in TEST_P()  local
616         tid2 = android::audio_utils::gettid_wrapper();  in TEST_P()
620     while (tid2 == 0) { usleep(1000); }  in TEST_P()
651         EXPECT_EQ(tid2, chain[0].first);  in TEST_P()
697     std::atomic<pid_t> tid1{}, tid2{}, tid3{}, tid4{};  in TEST_P()  local
726         tid2 = android::audio_utils::gettid_wrapper();  in TEST_P()
730     while (tid2 == 0) { usleep(1000); }  in TEST_P()
738             cv2.wait(ul2, [&]{ return quit; }, tid2);  in TEST_P()
766         EXPECT_EQ(tid2, chain[0].first);  in TEST_P()
815     std::atomic<pid_t> tid1{}, tid2{}, tid3{}, tid4{};  in TEST_P()  local
837         tid2 = android::audio_utils::gettid_wrapper();  in TEST_P()
842     while (tid2 == 0) { std::this_thread::sleep_for(1ms); }  in TEST_P()
846         audio_utils::mutex::scoped_join_wait_check sjw(tid2);  in TEST_P()
873         EXPECT_EQ(tid2, chain[0].first);  in TEST_P()