Fire and Forget in Ruby

fire_and_forget.rb

def ff! &block
  raise ::LocalJumpError, "No block given" unless block_given?
  Process.detach(fork &block)
end

# Demo
def test_ff
  puts "start"
  (1..100).each do |i|
    puts i
    ff! do
      puts "callback #{i}"
    end
  end
  puts "end"  
end