From: lover ruby <huynh_ngoc_5@...>
Date: 2011-10-11T15:08:03+09:00
Subject: Re: scheduler and thread

Sam Duncan wrote in post #1025958:
> On 11/10/11 11:20, lover ruby wrote:
>>          sleep([interval - elapsed, 0].max)
>> ---------------------------------------------------
>> But it never prints out "Doing other stuff..."
>>
>> How can I make it print out like
>> "Doing other stuff..."
>> 1318284723
>> 1318284728
>> 1318284733
>>
>> Thanks
> Try this;
>
> module Timer
>
>    @timer = nil
>
>    def Timer.repeat_every(interval)
>      @timer = Thread.new do
>        loop do
>          start_time = Time.now
>          yield
>          elapsed = Time.now - start_time
>          sleep([interval - elapsed, 0].max)
>        end
>      end
>    end
>
>    def Timer.stop
>      unless @timer.nil?
>        @timer.kill
>        @timer.join(1) # don't hang forever
>        @timer = nil
>      end
>    end
>
> end
>
> Timer.repeat_every(5) do
>   puts Time.now.to_i
> end
>
> puts "Doing other stuff..."
> sleep 10
> puts "Stopping timer"
> Timer.stop
>
>
> As far as I can tell your execution is hanging on the join which will
> never return as the timer thread is in an infinite loop =]
>
> Hope that helps
> Sam

Thanks for help.
The result is
1318313034Doing other stuff...

1318313039

And stop. Even I remove Timer.stop.

I want something like UI.start_timer in Google sketchup. After 
UI.start_timer, every code is executable. So the UI.start_timer acts 
like a background process.

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