35 lines
680 B
Ruby
Executable File
35 lines
680 B
Ruby
Executable File
#!/usr/bin/env ruby
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# encoding: utf-8
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require "amqp"
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def fib(n)
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return n if n == 0 || n == 1
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return fib(n - 1) + fib(n - 2)
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end
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AMQP.start(:host => "localhost") do |connection|
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channel = AMQP::Channel.new(connection)
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queue = channel.queue("rpc_queue")
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Signal.trap("INT") do
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connection.close do
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EM.stop { exit }
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end
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end
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channel.prefetch(1)
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queue.subscribe(:ack => true) do |header, body|
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n = body.to_i
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puts " [.] fib(#{n})"
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response = fib(n)
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AMQP::Exchange.default.publish(response.to_s, :routing_key => header.reply_to, :correlation_id => header.correlation_id)
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header.ack
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end
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puts " [x] Awaiting RPC requests"
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end
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