Thread safe task passing to Trema

[rakshasa]

Added support for thread safe passing of ruby blocks for execution in the Trema thread context.

[yasuhito]

Could you give us a code snippet that describes the use-cases of this functionality.

[rakshasa]

class Controller < Trema::Controller
  include TremaTasks
end

class DpInfo
  def add_flows(flows)
    return if flows.blank?
    @controller.pass_task {
      flows.each { |flow|
        @controller.send_flow_mod_add(@dpid, flow.to_trema_hash)
      }
    }
  end
end

By calling 'add_flows' any thread can safely pass a set of flows to the trema thread, in the context which the Controller is running.

[yasuhito]

I see. Thanks for the patch.