Parallelize a certain section of code and yield the result to a block

Parayield

require 'benchmark'
require 'net/http'
require 'uri'

thrs = []
url = URI.parse('http://yahoo.com')

class Parayield
  attr_accessor :threads

  def initialize
    @threads = []
  end 

  def parallel_yield(request_proc, &blk)
    threads <<[blk, Thread.new do
      Thread.current[:result] = request_proc.call
    end]
  end 

  def join
    threads.each do |request_proc, thread|
      thread.join
      request_proc.call(thread[:result])
    end 
  end 
end

t = Benchmark.measure do
  pyld = Parayield.new

  100.times do |i| 
    pyld.parallel_yield(->() { Net::HTTP.get_response(url) }) do |r|
      p "#{i} got #{r}"
    end 
  end 

  pyld.join
end

puts t

t = Benchmark.measure do
  100.times do
    p Net::HTTP.get_response(url)
  end 
end