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#!/usr/bin/env ruby
# frozen_string_literal: true
require_relative '../lib/async'
module Async::Methods
def sleep(*args)
Async::Task.current.sleep(*args)
end
def async(name)
original_method = self.method(name)
define_method(name) do |*args|
Async::Reactor.run do |task|
original_method.call(*args)
end
end
end
def await(&block)
block.call.wait
end
def barrier!
Async::Task.current.children.each(&:wait)
end
end
include Async::Methods
async def count_chickens(area_name)
3.times do |i|
sleep rand
puts "Found a chicken in the #{area_name}!"
end
end
async def find_chicken(areas)
puts "Searching for chicken..."
sleep rand * 5
return areas.sample
end
async def count_all_chckens
# These methods all run at the same time.
count_chickens("garden")
count_chickens("house")
count_chickens("tree")
# Wait for all previous async work to complete...
barrier!
puts "There was a chicken in the #{find_chicken(["garden", "house", "tree"]).wait}"
end
count_all_chckens
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