title: How to deal with network drops and Indy IdTCPServer
body: <p>I have created a Client/Server application with the IdTCPServer component.  The clients connect and maintain a persistent connection through the life of the application.  If the network connection is dropped (which happens quite frequently because clients connect with wireless aircards) the client will automatically re-connect.  This all works fine.</p>
  
  <p>My problem is dealing with the sockets on the server corresponding to the lost connection.  They don't detect the network drop and disconnect themselves.  After reading several related articles, I have learned there is no way for the server to know if a connection was dropped.  It must wait for some event to find this out.  </p>
  
  <p>So my question is, should I build some mechanism into my server to periodically "handle" the sockets with dropped connections?  And if so, how?  I thought one way would be do cycle through all connections and attempt to send them data.  I find this will trigger that needed "event".</p>