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Date: Fri, 15 Mar 2013 15:05:06 +0100
From: oliver <oliver@first.in-berlin.de>
To: Jeremie Dimino <jdimino@janestreet.com>
Cc: caml-list@inria.fr, ocsigen@inria.fr
Message-ID: <20130315140506.GI3409@siouxsie>
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X-Scanned-By: MIMEDefang_at_IN-Berlin_e.V. on 192.109.42.8
Subject: Re: [Caml-list] BUG in unix.ml (was: strange errors when linking
 lwt.unix)

On Fri, Mar 15, 2013 at 02:58:23PM +0100, oliver wrote:
> Hi,
> 
> On Fri, Mar 15, 2013 at 01:24:10PM +0000, Jeremie Dimino wrote:
> > BTW, here is an example that will work on all unix systems:
> > 
> >    # #load "unix.cma";;
> >    # Sys.set_signal Sys.sigchld (Sys.Signal_handle ignore);;
> >    - : unit = ()
> >    # let ic = Unix.open_process_in "sleep 5";;
> >    val ic : in_channel = <abstr>
> >    # Unix.system "sleep 10";;
> >    Exception: Unix.Unix_error (Unix.EINTR, "waitpid", "").
> [...]
> 
> 
> If you want to use Unix-module, you should use it consequently,
> not switching to Sys-module, when you want to handle signals.
> 
> 
> Try this one:
> 
>     open Unix;;
>     let new_mask =  sigprocmask SIG_BLOCK [10] in
>     let ic = Unix.open_process_in "sleep 5" in
>     Unix.system "sleep 10";;

Hahah... works even with empty list :-)

Ciao,
   Oliver