Re: [Caml-list] [ANN] Procord 0.1.0: Delegate tasks to other processes

[Louis Gesbert <louis.gesbert@ocamlpro.com>]

You may find the bindings for Terminate_process in ocaml-top useful [1].

I also had to handle sending a SIGINT to the ocaml toplevel, which wasn't very fun,


[1] https://github.com/OCamlPro/ocaml-top/blob/master/src/sigint_win.c

Louis Gesbert -- OCamlPro


On Thursday 10 October 2013 14:24:09 Romain Bardou wrote:
> Indeed. In fact I made a feature request about this:
> 
> http://caml.inria.fr/mantis/view.php?id=6146
> 
> So, just waiting for OCaml 4.02 will solve the issue.
> 
> If waiting is not an option I can of course add this in Procord. I
> should at least provide a way to get the PID / Process Handle so that
> one can call TerminateProcess using his own binding.
> 
> While we are discussing the differences between Windows and Linux, there
> is actually another one: the Windows server does not fork and, thus,
> only accepts one task at a time. This could be solved by having the
> server execute himself to run the tasks. But before actually
> implementing this I prefer to wait and see whether there is a real need
> (Windows servers are less common).
> 
> Cheers,
> 
> > I see you are using Unix.kill to kill processes. But I was under the
> > impression that it didn't work properly on Windows. Am I mistaken?
> > 
> > 
> > On 9 October 2013 11:09, Romain Bardou <romain.bardou@inria.fr
> > <mailto:romain.bardou@inria.fr>> wrote:
> > 
> >     I am happy to announce the first release of Procord, a portable library
> >     to delegate tasks to other processes.
> > 
> >     Obtain it with opam:
> > 
> >       opam install procord
> > 
> >     Or, download the tarball:
> > 
> >       https://github.com/cryptosense/procord/archive/v0.1.0.tar.gz
> > 
> >     View a minimal, commented example:
> > 
> >       https://github.com/cryptosense/procord/blob/master/examples/minimal.ml
> > 
> >     You can browse the API at:
> > 
> >       http://cryptosense.github.io/procord/api/index.html
> > 
> >     Procord can spawn local worker processes or communicate using sockets to
> >     a remote worker server. Workers will receive an input, execute a
> >     function on this input, and send back the result. Meanwhile, the main
> >     program can continue to run while waiting for the results.
> > 
> >     Not relying on threads, Procord is robust - a segmentation fault in the
> >     worker will not kill the main program. Not relying on fork, Procord is
> >     portable - it has been tested on Linux and Windows.
> > 
> >     Procord provides an easy way to have the same executable act as a worker
> >     - local or remote - or as the main program. The actual behavior can be
> >     specified on the command-line. The default is to run as the main
> >     program, which delegates tasks by running itself.
> > 
> >     I will present Procord at the OUPS meeting of this evening.
> > 
> >     --
> >     Romain Bardou
> > 
> >     --
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> > 
> > 
> 
> 
>