Using Kgio::TCPSocket.start with EventMachine (in non blocking way)

["Iñaki Baz Castillo" <ibc@aliax.net>]

Hi, I need to use Ruby OpenSSL bindings in a TLS client connection
made from EventMachine, so I should use EM.attach by providing it the
previously created TCP socket and set notify_readable/writable.

Now the first issue is: how to do a non-blocking TCP connection
(needed within EM environment)? So I found
"Kgio::TCPSocket.start('127.0.0.1', 80)":

---------------------------------------------------------------
Creates a new Kgio::TCPSocket object and initiates a non-blocking
connection. The caller should select/poll on the socket for
writability before attempting to write or optimistically attempt a
write and handle :wait_writable or Errno::EAGAIN.
---------------------------------------------------------------

I basically need a callback "on_connected" to be called when such a
TCP connection is completed, but honestly I have no idea since it
seems to require using select/poll (at Ruby level) working on top of a
EventMachine code, really complex IMHO. Or maybe I miss something.

Could I get some help please?

Thanks a lot.


-- 
Iñaki Baz Castillo
<ibc@aliax.net>