private static void EnsureTimerQueueCreated()
{
if (Volatile.Read(ref _timerQueue) == null)
{
var queue = UnmanagedMethods.CreateTimerQueue();
if (Interlocked.CompareExchange(ref _timerQueue, queue, IntPtr.Zero) != IntPtr.Zero)
{
UnmanagedMethods.DeleteTimerQueueEx(queue, IntPtr.Zero);
}
}
}