class FastPortScanner

# File lib/fast_port_scanner.rb, line 11
def self.scan(ip='127.0.0.1', ports: 1..1000, wait: 1.25)

  a = []

  ports.map do |port|

    Thread.new do
      
      begin
        Timeout::timeout(1){TCPSocket.new(ip, port)}
      rescue
        #puts "closed : #{port}"
      else
        #puts "open : #{port}"
        a << port
      end
      
    end

  end.join
  
  sleep wait

  @to_a = a.sort

end