On Thu, 7 Oct 2004, mattwb wrote:

> Is there a good reason that Sys.sigint is blocked when I compile a
> native application under Cygwin using threads?  Is O'Caml doing the
> blocking or Cygwin?  I would like to develop a service using cygrunsrv
> to run it, but that requires my application to take a signal when
> killed.  Is it safe to unblock any signals when using threads under
> Cygwin?  If so, which one's.

I would say that you may unblock any signals you want.  There's nothing
inherent in Cygwin that prevents signal delivery, so it's probably O'Caml.
Are you using the O'Caml version that comes with Cygwin, or a self-built
one?

In any case, if you have a small example that demonstrates the problem,
please send it to me either on-list or privately -- I'd like to
investigate.

Igor Pechtchanski, volunteer O'Caml maintainer for Cygwin

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