Check of sleeping threads

irb_output.txt

irb(main):067:0> s2 = Supervisor2.new
=> #<Supervisor2:0x5fbdfdcf>
irb(main):068:0> s2.run
sleeping for 30
=> [#<Thread:0x156b88f5 run>, #<Thread:0x3bf9ce3e run>]
irb(main):069:0> s2.stop
=> [#<Thread:0x156b88f5 dead>, #<Thread:0x3bf9ce3e run>]
irb(main):070:0> s3 = Supervisor3.new
=> #<Supervisor3:0x71def8f8>
irb(main):071:0> s3.run
sleeping for 30
=> [#<Thread:0x5562c41e sleep>, #<Thread:0x3bf9ce3e run>]
irb(main):072:0> s3.stop
=> [#<Thread:0x5562c41e dead>, #<Thread:0x3bf9ce3e run>]
irb(main):073:0> s1 = Supervisor1.new
=> #<Supervisor1:0x4d0f2471>
irb(main):074:0> s1.run
sleeping for 30
=> [#<Thread:0x47faa49c run>, #<Thread:0x3bf9ce3e run>]
irb(main):075:0> Thread.list
=> [#<Thread:0x47faa49c sleep>, #<Thread:0x3bf9ce3e run>]
irb(main):076:0> s1.stop
=> [#<Thread:0x47faa49c sleep>, #<Thread:0x3bf9ce3e run>]
irb(main):077:0> Thread.list
=> [#<Thread:0x47faa49c sleep>, #<Thread:0x3bf9ce3e run>]
irb(main):078:0> Thread.list.first.run
=> #<Thread:0x3bf9ce3e run>
irb(main):079:0> Thread.list
=> [#<Thread:0x3bf9ce3e run>]
irb(main):080:0>

threads_sleeping.rb

class RunnerA
  def run
    @stop = false
    while !@stop do
      puts 'sleeping for 30'
      sleep(30)
    end
  end
  def stop
    @stop = true
  end
end

class RunnerB
  def run
    @stop = false
    @mythread = Thread.current
    while !@stop do
      puts 'sleeping for 30'
      sleep(30)
    end
  end
  def stop  
    @stop = true
    @mythread.run
  end
end

class Supervisor1
  def run
    @ri = RunnerA.new
    @rt = Thread.new { @ri.run }
    Thread.list
  end
  def stop
    @ri.stop
    Thread.list
  end
end

class Supervisor2
  def run
    @ri = RunnerA.new
    @rt = Thread.new { @ri.run }
    Thread.list
  end
  def stop
    @ri.stop
    @rt.run
    Thread.list
  end
end

class Supervisor3
  def run
    @ri = RunnerB.new
    @rt = Thread.new { @ri.run }
    Thread.list
  end
  def stop
    @ri.stop
    Thread.list
  end
end