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From: Albert Schlef on 7 Apr 2010 00:55
Hi!

I want to launch a program and I don't care about its return value or
output. I also don't want it to block my ruby program.

On Linux I do this as follows:

if !fork
system("xpdf /path/to/some/file")
exit!
# ... or exec() ...
end

But it doesn't work on MS-Windows... it complains that fork() isn't
implemented.

So how do I launch a program on MS-Windows without it blocking me and
without caring about its output and return status?
--
Posted via http://www.ruby-forum.com/.

From: Marvin Gülker on 7 Apr 2010 04:19
Albert Schlef wrote:
> Hi!
>
> I want to launch a program and I don't care about its return value or
> output. I also don't want it to block my ruby program.
>
> On Linux I do this as follows:
>
> if !fork
> system("xpdf /path/to/some/file")
> exit!
> # ... or exec() ...
> end
>
> But it doesn't work on MS-Windows... it complains that fork() isn't
> implemented.
>
> So how do I launch a program on MS-Windows without it blocking me and
> without caring about its output and return status?

You may use the win32-process gem that implements #fork as far as I
know, or simply IO.popen:
--------------------------------
IO.popen("your command")
#Just go on here
--------------------------------

Marvin

PS: On Linux I think the #spawn method does this task best.
--
Posted via http://www.ruby-forum.com/.

From: Joel VanderWerf on 7 Apr 2010 11:23
Albert Schlef wrote:
> Hi!
>
> I want to launch a program and I don't care about its return value or
> output. I also don't want it to block my ruby program.
>
> On Linux I do this as follows:
>
> if !fork
> system("xpdf /path/to/some/file")
> exit!
> # ... or exec() ...
> end
>
> But it doesn't work on MS-Windows... it complains that fork() isn't
> implemented.
>
> So how do I launch a program on MS-Windows without it blocking me and
> without caring about its output and return status?

Thread.new do
system("...")
end

This works on windows as well as platforms with fork.

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