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From "David Reid" <dr...@jetnet.co.uk>
Subject Re: [PATCH] Add support for Unix domain sockets
Date Fri, 11 Jan 2002 19:37:17 GMT
> > > Funny you should bring that up (and particularly that ipc_ prefix).
> > > Recently I've been working on a stream pipes proposal for APR that I
have
> > > yet to post. This is not quite the same as Unix Domain Sockets, so it
> > > wouldn't be usable for things like EGD, but would be useful for
perchild
> > > portability. The main features are interprocess data communication and
> > > the ability to pass apr_file_t and apr_socket_t types between
processes. I
> > > will post the API as soon as I have a working proof of concept on
Unix.
> >
> > Hmm, well I'll wait to see it, but I actually think what we need is an
> > implementation of ipc that is useful and flexible, not tied to simply
> > passing sockets or file_t's between processes.
>
> my requirements are:
>
> - able to pass datagrams
> - able to pass data efficiently, if possible (iovec prefered)
> - able to pass files and sockets
>
> ... all between processes.

These all sound good and tie in with my ideas :)

>
> > > I'm thinking we can either work the Unix Domain Sockets and stream
pipes
> > > into one unified API, or if their attributes are too incompatible I
see
> > > no reason why we can't just have two sets of APIs.
> >
> > I don't think we should neccesarily follow too closely the Unix Domain
model
> > as it's just that, a Unix idea.  Let's simply do what we've done before
and
> > come up with a suitable api.  There have been a good few examples given
of
> > places where this could be useful.  Any reason why you can't simply post
> > what you've got so far?
>
> I agree, there is no reason to model the whole thing after UDSockets,
> especially if they are completely non-portable outside of Unix.  FWIW,
> I am not implementing apr_spipe_t on top of Unix Domain Sockets. For the
> sake of this discussion, I'll post my apr_spipe_t API shortly.

Excellent :)

david


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