require 'socket'
require 'timeout'

module Vmesh
  def self.pingecho(host, timeout=5, service="echo")
    begin
      timeout(timeout) do
        s = TCPSocket.new(host, service)
        s.close
      end
    rescue Errno::ECONNREFUSED
      return true
    rescue Timeout::Error, StandardError
      return false
    end
    return true
  end
end