new

# File lib/rake/thread_pool.rb, line 12
    def initialize(thread_count)
      @max_active_threads = [thread_count, 0].max
      @threads = Set.new
      @threads_mon = Monitor.new
      @queue = Queue.new
      @join_cond = @threads_mon.new_cond

      @history_start_time = nil
      @history = []
      @history_mon = Monitor.new
      @total_threads_in_play = 0
    end