def perform_request(env)
if parallel?(env)
manager = env[:parallel_manager]
manager.add {
perform_single_request(env).
callback { env[:response].finish(env) }
}
else
unless EventMachine.reactor_running?
error = nil
EventMachine.run do
perform_single_request(env).
callback { EventMachine.stop }.
errback { |client|
error = error_message(client)
EventMachine.stop
}
end
raise_error(error) if error
else
env[:parallel_manager] = true
perform_single_request(env).
callback { env[:response].finish(env) }.
errback {
raise NotImplementedError
}
end
end
end