How can I detect that the client has closed the socket using mio 0.6?

I want to be able to detect that the client has closed the socket so that I can do deregister

it, but I cannot find a suitable way to do this.

My question is similar to Client Hanging Detection in MIO , but there are two main differences:

• I need a cross platform solution. According to the source code mio 0.6 hup
  
  is UNIX only, my code should work on Windows too.

• The mio API has changed dramatically from 0.3.