From: Rajinder Yadav <devguy.ca@...>
Date: 2009-10-20T10:46:02+09:00
Subject: Re: Threads terminating

pawel wrote:
> Why this simple program give no output, and terminates immidiatly
> after its launched? There should be thread running and giving lots of
> 'lala', am I right?
> class Bar
>   def initialize
> 
>   end
>   def foo
>      Thread.new do
>       while true
>         puts "lala\n"
>       end
>     end
>   end
> end
> 
> b=Bar.new
> b.foo
> 
> 
> 
Hi Pawel, here is one example, see if you can follow it.

class Bar
   def initialize( msg )
      @msg = msg
   end
   def foo
     t_exit = Time.now.to_i + 3
     while true
       puts @msg
       break if Time.now.to_i > t_exit
       sleep 0.5
     end
   end
end

b1 = Thread.new{ Bar.new("x").foo }
b2 = Thread.new{ Bar.new("o").foo }

# here main thread waits for thread b1 and b2 to exit
b1.join
b2.join


-- 
Kind Regards,
Rajinder Yadav

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