Using Kgio::Socket.pair and OpenSSL::SSL::Context for a new TLS stack in EventMachine

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

Hi, Ruby EventMachine has some drawbacks when using its SSL
stack(coded in C++), basically it consumes ***lot*** of memory as
showedin: https://github.com/eventmachine/eventmachine/issues/266
I've been suggested by the author of EM to create a TLS stack
usingRuby OpenSSL on top of a EM::Connection instance (which would be
apure TCP client/server connection rather than a TLS connection).
When acting as TCP server, an EM::Connection is created by EM for
eachincoming connection, and runs some callbacks:
- EM::Connection#initialize(), when the TCP connection begins.-
EM::Connection#post_init(), when the TCP connection has been
completed.- EM::Connection#receive_data(data), when data is received
from the client.- EM::Connection#unbind(cause=nil), when the TCP
connection isterminated locally or remotely.
So what I'm trying to achieve is using Kgio::Socket.pair() as a
bridgebetween the raw TLS data received from the client (after the
TCPconnection is done) and a OpenSSL::SSL::SSLSocket, something like:
--------------------------class MyTlsServer < EM::Connection
 @@ssl_context = ::OpenSSL::SSL::SSLContext.new
 def post_init   @sock1, @sock2 =
::Kgio::Socket.pair(::Kgio::Socket::AF_UNIX,::Kgio::Socket::SOCK_STREAM,
0)   @ssl = ::OpenSSL::SSL::SSLSocket.new @sock2, @@ssl_context
@ssl.sync_close = true end
 def receive_data data   # Write the received TLS raw data into @sock1, so
   # @ssl socket can read it from @sock2.   @sock1.write data
   # I should call @ssl.accept somewhere (just once per connection)
   # in order to perform the TLS handshake, but I don't know how,   #
it blocks forever.
   # No idea how to continue here. end
end--------------------------


Any suggestion about how could I continue it? it's being a hard
taskand I don't get it working in any way.
Really thanks a lot for any help.


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