cunlock := make(chan bool)
	cdone := make(chan bool)
	for i := 0; i < numReaders; i++ {
		go parallelReader(context.Background(), m, clocked, cunlock, cdone)
	}
	// Wait for all parallel RLock()s to succeed.
	for i := 0; i < numReaders; i++ {
		<-clocked
	}
	for i := 0; i < numReaders; i++ {
		cunlock <- true
	}
	// Wait for the goroutines to finish.
	for i := 0; i < numReaders; i++ {
		<-cdone
	}

    // lockD -> lockA
    lockD.lock();
    lockA.lock();
    lockA.unlock();
    lockD.unlock();

    // lockA -> lockD should warn but otherwise succeed because lockD was
    // created by a factory with the WARN policy.
    lockA.lock();
    lockD.lock();
  }

  public void testReentrantLock_tryLock() throws Exception {

  override fun connectTcp(): ConnectResult {
    check(rawSocket == null) { "TCP already connected" }

    var success = false

    // Tell the call about the connecting call so async cancels work.
    user.addPlanToCancel(this)
    try {
      user.connectStart(route)

      connectSocket()
      success = true
      return ConnectResult(plan = this)
    } catch (e: IOException) {

        assertTrue(aa.compareAndSet(i, prev, x));
        assertBitEquals(x, aa.get(i));
        prev = x;
      }
    }
  }

  /** compareAndSet in one thread enables another waiting for value to succeed */
  public void testCompareAndSetInMultipleThreads() throws InterruptedException {
    final AtomicDoubleArray a = new AtomicDoubleArray(1);
    a.set(0, 1.0);
    Thread t =
        newStartedThread(

     *
     * It's possible that the whole qualifier is invalid, in this case we still want to resolve our [selectedFqName].
     * To do this, we are trying to resolve the whole qualifier until we succeed.
     *
     * @param selectedFqName the selected fully qualified name of the KDoc
     * @param fullFqName the whole fully qualified name of the KDoc
     * @param contextElement the context element in which the KDoc is defined

		t.Fatalf("Failed to construct get-config object request - %v", err)
	}

	rec := httptest.NewRecorder()
	adminTestBed.router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Errorf("Expected to succeed but failed with %d", rec.Code)
	}

	results := madmin.InfoMessage{}
	err = json.NewDecoder(rec.Body).Decode(&results)
	if err != nil {
		t.Fatalf("Failed to decode set config result json %v", err)
	}

	cunlock := make(chan bool)
	cdone := make(chan bool)
	for i := 0; i < numReaders; i++ {
		go parallelReader(context.Background(), m, clocked, cunlock, cdone)
	}
	// Wait for all parallel RLock()s to succeed.
	for i := 0; i < numReaders; i++ {
		<-clocked
	}
	for i := 0; i < numReaders; i++ {
		cunlock <- true
	}
	// Wait for the goroutines to finish.
	for i := 0; i < numReaders; i++ {
		<-cdone
	}

  }

  // Create a variable using `ctx_0`.
  // Replace worker1 using a new worker, and update the contexts.
  // Read the variable using `ctx_1`. This read should succeed.
  //
  // 1. Create a variable on `remote_device`, using `ctx_0`.
  TFE_TensorHandle* handle_0 =
      CreateVariable(ctx_0, 1.2, remote_device, /*variable_name=*/"var");

	if len(sn) < maxNanoSecondDigits {
		sn += strings.Repeat("0", maxNanoSecondDigits-len(sn)) // Right pad
	} else {
		sn = sn[:maxNanoSecondDigits] // Right truncate
	}
	nsecs, _ := strconv.ParseInt(sn, 10, 64) // Must succeed
	if len(ss) > 0 && ss[0] == '-' {
		return time.Unix(secs, -1*nsecs), nil // Negative correction
	}
	return time.Unix(secs, nsecs), nil
}

 * typically false on Windows.
 *
 * If this returns false we won't permit simultaneous reads and writes. When writes commit we need
 * to delete the previous snapshots, and that won't succeed if the file is open. (We do permit
 * multiple simultaneous reads.)
 *
 * @param file a file in the directory to check. This file shouldn't already exist!
 */
internal fun FileSystem.isCivilized(file: Path): Boolean {