A TimedSemaphore is a specialized implementation of a Semaphore that gives a number of permits in a given time frame. This gem is a Ruby implementation inspired by the Java implementation from the Apache Commons Lang package.

gem install timed_semaphore

Here is a basic example of using a TimedSemaphore:

require 'timed_semaphore'

threads = []
semaphore = TimedSemaphore.new(2, 3)

10.times do |x|
  threads << Thread.new do
    semaphore.acquire
    puts "Thread #{x}: " + Time.now.to_s
  end
end

threads.map(&:join)

Please refer to LICENSE.