timeout

Eventually I managed to add a timeout value in the server side code so that an idle connection will be shutdown [patch] within a given time. The patch is much simpler than what's expected, and at the same time, I realized that I did NOT turn libxr back to non-blocking I/O, but non-buffering I/O.

I solved another problem which blocked our development this afternoon. It turned out to be SSL re-handshake problem -- as I guessed. Adding a Squid proxy between our client and server application is not that transparent as we thought, it will request the server program to do SSL re-handshake.