def socket
sock = Thread.current[fiber_key]
return sock if sock and not sock.closed?
Thread.current[fiber_key] = nil
return if @retry and @retry > Time.now
Thread.current[fiber_key] ||= begin
sock = EM::SocketConnection.connect(@host, @port, @timeout)
yielding = true
fiber = Fiber.current
sock.callback do
@status = 'CONNECTED'
@retry = nil
yielding = false
fiber.resume if Fiber.current != fiber
end
sock.errback do
sock = nil
yielding = false
fiber.resume if Fiber.current != fiber
end
Fiber.yield if yielding
sock
end
end