Detecting dead connection with TCPSession?

[Austen, Tyler]

Hi,

I'm writing a simple socket server that accepts connections on a socket by 
creating TCPSessions.  Currently, my server will accept a connection from a 
client, but if the client "dies", or even closes down gracefully, my server's 
TCPSession is none the wiser.

I've got the server's TCPSession checking the following conditions periodically 
(i.e. every 1second):

  - isActive() 
  - isConnected() 
  - tcp()->good() 
  - getErrorNumber() == 0

None of these checks evaluate to false...  I was expecting isConnected() to 
tell me that the connection was bad, but it didn't.

Any ideas what I should do so that my server's TCPSession can know when the 
client has gone away?

Thanks a million,

Tyler