Rails - Nov 2007 - Net::HTTP reponse method - custom timeout

I am using the following code to control an external device via it''s
in-built web server interface:

  def send_to_unit(instruction)
    begin
      if @address and http = Net::HTTP.new(@address, 80)
        http.start do |http|
          request = Net::HTTP::Get.new(instruction)
          request.basic_auth USERNAME, PASSWORD
          response = http.request(request)
          find_state(response.body)
        end
      end
    rescue
      #Connection failed
      return nil
    end
  end

This works fine when the unit is working, but if someone switches the
unit off, it takes a long time (30-40 sec!) to time out.

Is there a way to specify a timeout period for the request? Net::HTTP
has a read_timeout attribute, but I can see how to use it, if this is
the approach to take.
-- 
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On 28 Nov 2007, at 12:22, Rob Nichols wrote:
>
> Is there a way to specify a timeout period for the request? Net::HTTP
> has a read_timeout attribute, but I can see how to use it, if this is
> the approach to take.
Here''s what I''ve got

http = Net::HTTP.new(uri.host, uri.port)
http.open_timeout = x
http.read_timeout = y
response = http.start do |http|
   http.request_get(path)
end
>
> --  
> Posted via http://www.ruby-forum.com/.
>
> >

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Thank you Frederick,

This now works:

  def send_to_unit(instruction)
    begin
      if @address and http = Net::HTTP.new(@address, 80)
        http.open_timeout = 3
        http.read_timeout = 3
        http.start do |http|
          request = Net::HTTP::Get.new(instruction)
          request.basic_auth USERNAME, PASSWORD
          response = http.request(request)
          find_state(response.body)
        end
      end
    rescue Timeout::Error
      #Connection failed
      return "not available - connection timed out"
    end
  end

Annoyingly - I looked at this post before I posted and the answer was 
all there if I''d look at it more closely:

http://www.ruby-forum.com/topic/128439

So thank you for pointing me in the right direction. Splendid!
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