trap.rb

module MyApps
  # The MyApps module illustrates a common


  # The first app class includes a call to Signal::trap
  class App1
    def initialize
      @pid = Process.pid
    end

    def run
      puts "Running with process ID: #{@pid}"
      loop do
        sleep 1
        STDERR.puts "[#{@pid}]: Still running"
      end
    end

    trap(:INT) { STDERR.puts "\nSIGINT received. Exiting!"; exit 0 }
  end

  # This is the app class that we will run
  class App2
    def initialize
      @pid = Process.pid
    end

    def run
      puts "Running with process ID: #{@pid}"
      loop do
        sleep 1
        STDERR.puts "[#{@pid}]: Still running"
      end
    end
  end
end


MyApps::App2.new.run