From: Mats Weber <Mats.Weber@elca-matrix.ch>
Subject: Re: Tasks and C/C++ code.
Date: 1998/11/19
Date: 1998-11-19T00:00:00+00:00 [thread overview]
Message-ID: <3654746F.3C297E56@elca-matrix.ch> (raw)
In-Reply-To: 87btm52jwl.fsf@zaphod.enst.fr
Samuel Tardieu wrote:
>
> >>>>> "David" == dbotton <dbotton@hotmail.com> writes:
>
> David> I think it would be practical to create a protected type that
> David> wrapped your C function to insure that it is not be run
> David> concurrently (if it isn't safe). If it's safe then just call it
> David> as you would any other Ada Procedure/Function.
>
> You can't do that for abitraries C functions: it must not contain any
> potentially blocking code.
Why not ? If the C function is potentially blocking _and_ non-reentrant
(as is gethostbyname for example, which can take some time), then it's
the only option.
next prev parent reply other threads:[~1998-11-19 0:00 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-11-09 0:00 Tasks and C/C++ code Barry L. Dorough
1998-11-09 0:00 ` Mats Weber
1998-11-10 0:00 ` dennison
1998-11-11 0:00 ` dbotton
1998-11-11 0:00 ` Barry L. Dorough
1998-11-11 0:00 ` dennison
1998-11-12 0:00 ` Jerry van Dijk
1998-11-13 0:00 ` Mats Weber
1998-11-11 0:00 ` dennison
1998-11-18 0:00 ` Samuel Tardieu
1998-11-19 0:00 ` Mats Weber [this message]
1998-11-20 0:00 ` Samuel Tardieu
1998-11-23 0:00 ` Mats Weber
1998-11-23 0:00 ` Tom Moran
1998-11-24 0:00 ` Blocking protected ops (was: Tasks and C/C++ code) Mats Weber
1998-11-24 0:00 ` Robert I. Eachus
1998-11-25 0:00 ` Mats Weber
1998-11-25 0:00 ` Jean-Pierre Rosen
1998-11-27 0:00 ` Mats Weber
1998-11-25 0:00 ` Robert I. Eachus
1998-11-26 0:00 ` Simon Wright
1998-11-27 0:00 ` David Botton
1998-11-27 0:00 ` Mats Weber
1998-11-27 0:00 ` Tom Moran
1998-11-27 0:00 ` Jerry van Dijk
1998-11-28 0:00 ` Tom Moran
1998-11-29 0:00 ` Tucker Taft
1998-11-30 0:00 ` Simon Wright
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