[Mono-dev] fix for bug #358987 in 1.9?

Alan McGovern alan.mcgovern at gmail.com
Thu Feb 21 06:56:35 EST 2008


It may be closed automatically, but *when* will it be closed? There's no
guarantee on when finalizers will be called which is why calling .Close() is
a much better solution (where possible).

Alan.

On Thu, Feb 21, 2008 at 11:53 AM, Zoltan Varga <vargaz at gmail.com> wrote:

> Hi,
>
> I applied the following patch instead to the 1.9 branch:
>
> Index: HttpConnection.cs
> ===================================================================
> --- HttpConnection.cs   (revision 96098)
> +++ HttpConnection.cs   (working copy)
> @@ -313,8 +313,11 @@
>
>                                Socket s = sock;
>                                sock = null;
> -                               s.Shutdown (SocketShutdown.Both);
> -                               s.Close ();
> +                               try {
> +                                       s.Shutdown (SocketShutdown.Both);
> +                               } finally {
> +                                       s.Close ();
> +                               }
>                                if (context_bound)
>                                        epl.UnbindContext (context);
>
> This is still just a workaround, since the socket should be closed
> automatically
> by its finalizer.
>
>               Zoltan
>
> On Wed, Feb 20, 2008 at 5:37 PM, Avery Pennarun <apenwarr at gmail.com>
> wrote:
> > 2008/2/20 Steve Bjorg <steveb at mindtouch.com>:
> >
> > > - s.Shutdown (SocketShutdown.Both);
> >  > + try {
> >  > + s.Shutdown (SocketShutdown.Both);
> >  > + } catch(Exception e) {
> >  > + // log here?
> >  > + }
> >  >   s.Close ();
> >
> >  Why call Shutdown() at all?  The shutdown syscall is only useful if
> >  you need to keep the fd around longer (eg. if someone else is still
> >  holding onto it and you don't want it to be reused).  In the above
> >  code, close() shuts down the socket anyway.
> >
> >  ...unless mono's socket code is doing something different than
> >  standard C sockets, that is.
> >
> >  Have fun,
> >
> >  Avery
> >  _______________________________________________
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> >  Mono-devel-list at lists.ximian.com
> >  http://lists.ximian.com/mailman/listinfo/mono-devel-list
> >
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