DispatchQueue is a simple way to serialize jobs. It was done for crawling things, but could be used in any case that you need to do more than one work at a time.

Check build status to see support in different platforms

• The threaded_way:

[1,2,3].threaded_each{|i|
  sleep 4-i
  puts i
}

3
2
1

[1,2,3].threaded_map{|i| sleep 4-i ; i } #=> [3,2,1]

• The explicit way:

my_work_queue = DispatchQueue.new(lambda{ sleep 3 ; 5},  lambda{ 10 })
my_work_queue.sort #=> [5, 10]

• The implicit way:

DQ[ lambda{ sleep 5 ; 3} , Proc.new{ sleep 6; 2 } ].sort #=> [2,3]

• 1.1.0 Create [].threaded_each [].threaded_map (2011/09/22)
• 1.0.5 Reduce implementation

"THE BEER-WARE LICENSE" (Revision 42): guillermo@cientifico.net wrote this file. As long as you retain this notice you can do whatever you want with this stuff. If we meet some day, and you think this stuff is worth it, you can buy me a beer in return Guillermo Álvarez Fernández