comp.lang.ruby

ara.t.howard

12/29/2007 5:52:00 PM

On Dec 28, 2007, at 9:34 PM, Junkone wrote:

> Hello
> How do i invoke the INT signal in xp using ruby. i have this following
> code running to do something when its process has a INT signal.
> however i dont know how to invoke it.
> trap("INT") {
> begin
> bot.deliver(bot.master,"this is a test run")
> rescue Exception => e
> puts e
> end
>
> I tried, Kill but it does not recognise the pid i sentwhich is valid
> irb(main):001:0> Process.kill("INT",4744)
> Errno::EINVAL: Invalid argument
> from (irb):1:in `kill'
> from (irb):1
> irb(main):002:0> Process.kill("INT")
> ArgumentError: wrong number of arguments -- kill(sig, pid...)
> from (irb):2:in `kill'
> from (irb):2
> irb(main):003:0> Process.kill("INT",4744)
> Errno::EINVAL: Invalid argument
> from (irb):3:in `kill'
> from (irb):3
> irb(main):004:0>
>
>



afaikt you cannot send a signal to another process in windows using
ruby. the win32-process module has an alternate impl that does allow
this - but then trap does not work ;-(

see this post for a very very simple work around that's also cross
platform:

http://drawohara.com/pos...

the basic concept is that you use drb to cause a process to signal
itself - which *does* work on windows, including the trap of said
signal.

regards.

a @ http://codeforp...
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