[gambit-list] output ports created with ##open-predefined not being garbage collected

Dimitris Vyzovitis vyzo at hackzen.org
Fri Apr 10 14:19:07 EDT 2020


You might be interested in the gerbil socket library a spin; there is
support for UNIX domain sockets through raw devices

-- vyzo

On Fri, Apr 10, 2020 at 9:06 PM Jörg F. Wittenberger <
Joerg.Wittenberger at softeyes.net> wrote:

> Hi Alejandro & Marc,
>
> this is exactly the use case I had when I asked the list and likely
> Alejandro referred to Marcs answer to my question.
>
> So I'm afraid this is really something we need [Q]:
>
>     How would I turn a file descriptor, as exported from some library
>     and ready/intented to be used with poll(2)/select(2) into a port?
>
> Thanks sooo much.
>
> /Jörg
>
> Background:
>
> Since when I'm using this ##open-predefined and have on my list to ask
> why this seems not to integrate into gambit's threading as good as I
> had hoped for.
>
> Nevertheless Marcs suggestion to use open-tcp-server does not work for
> me.  I really need a unix domain socket.  Actually an abstract socket
> on Linux.  No way around.  :-/
>
> But I'd like it to block the calling thread on input.  Which did not
> work out for me.  (There is lambdanative and Android in the mix too, but
> my current _guess_ is that neither is to blame here.)
>
> Which leaves me with the question above.
>
> On Sat, 4 Apr 2020 22:59:42 -0700 (PDT)
> Alejandro Santana <santana at mailbox.org> wrote:
>
> > Thanks for the explanation.
> >
> > > BTW, why do you need this?
> > Just learning scheme and c. I wanted to have gambit receive s-exps
> > over a unix domain socket. I figured it would be simplest if I could
> > turn the file descriptor returned from accept into a port and call
> > scheme's read on it. I can do without this though and I'd rather not
> > have ports piling up.
> >
> > I'm curious though if there's a better way to turn a file descriptor
> > into a port. ##open-predefined is what I saw mentioned when I
> > searched the mailing list.
>
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