From: "ara.t.howard" <ara.t.howard@...>
Date: 2008-09-09T23:39:02+09:00
Subject: Re: Frustrated: System call timeouts


On Sep 9, 2008, at 1:07 AM, Mikel Lindsaar wrote:

> On Sun, Sep 7, 2008 at 12:42 AM, ara.t.howard  
> <ara.t.howard@gmail.com> wrote:
>> On Sep 6, 2008, at 3:43 AM, Mikel Lindsaar wrote:
>>> Hello all,
>>> I am having some (un)fun with timing out a database calls.
>> try this:
>>      <snip>
>>      pid = Process.pid
>>      signaler = IO.popen "ruby -e'sleep #{ seconds };
>>      Process.kill(:TERM.to_s, #{ pid }) rescue nil'"
>>      thread = Thread.current
>>      handler = Signal.trap('TERM'){ thread.raise Error,  
>> seconds.to_s }
>>      begin
>>        block.call
>>      ensure
>>        Process.kill 'TERM', signaler.pid rescue nil
>>        Signal.trap('TERM', handler)
>>      end
>
> Ara, thank you _so_ much for this.
>
> I would never have thought of spawning suicidal terminator ruby
> processes to nuke my process :)  But works well.
>
>

i keep meaning to turn this into a library but have not.  any other  
advice - besides the pid issue - that you encountered trying to make  
it live?

cheers.




a @ http://codeforpeople.com/
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