hWaitForInput and timeouts

Hi, I have another I/O problem. I need to time out when a Handle blocks forever. I am using hWaitForInput anyway, so that shouldn't be a problem, but the documentation says that using this feature will block all IO threads? Is it much work to fix this? I _could_ forkIO a racer thread myself, of course, but it feels wrong to do that around a function that has an explicit timeout argument. :-) Peter