From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: cygwin-developers@cygwin.com
Subject: Re: The unreliability of AF_UNIX datagram sockets
Date: Thu, 29 Apr 2021 17:18:16 +0200 [thread overview]
Message-ID: <YIrOOF6PkY39/SN/@calimero.vinschen.de> (raw)
In-Reply-To: <YIrLQezXLUnEo8BS@calimero.vinschen.de>
On Apr 29 17:05, Corinna Vinschen wrote:
> On Apr 29 10:38, Ken Brown wrote:
> > Sounds great. Thanks.
>
> Don't start just yet.
>
> I'm still not quite sure if that's really the way to go. As I see it we
> still have something to discuss here.
>
> For one thing, using native AF_UNIX sockets will split our user base
> into two. Those who are not using a recent enough Windows will get the
> old code and no descriptor passing. However, if an application has been
> built with descriptor passing, it won't work for those running older
> Windows versions. I don't think we want that for the distro, or, do we?
>
> Next problem... implementing actual STREAM sockets. Even using native
> AF_UNIX sockets, these, too, would have to encapsulate the actual
> payload because of the ancilliary data we want to send with them.
> Whether or not we use native AF_UNIX sockets, they won't be compatible
> with native applications...
While searching the net I found this additional gem of information:
Native AF_UNIX sockets don't support abstract sockets. You must bind to
a valid path, so you always have a visible file in the filesystem.
Discussed here: https://github.com/microsoft/WSL/issues/4240
We could workaround that with our POSIX unlink semantics, probably,
but it's YA downside.
Corinna
next prev parent reply other threads:[~2021-04-29 15:18 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-27 15:47 Ken Brown
2021-04-29 11:05 ` Corinna Vinschen
2021-04-29 11:16 ` Corinna Vinschen
2021-04-29 14:38 ` Ken Brown
2021-04-29 15:05 ` Corinna Vinschen
2021-04-29 15:18 ` Corinna Vinschen [this message]
2021-04-29 16:44 ` Ken Brown
2021-04-29 17:39 ` Corinna Vinschen
2021-05-01 21:41 ` Ken Brown
2021-05-03 10:30 ` Corinna Vinschen
2021-05-03 15:45 ` Corinna Vinschen
2021-05-03 16:56 ` Ken Brown
2021-05-03 18:40 ` Corinna Vinschen
2021-05-03 19:48 ` Ken Brown
2021-05-03 20:50 ` Ken Brown
2021-05-04 11:06 ` Corinna Vinschen
2021-05-13 14:30 ` Ken Brown
2021-05-17 10:26 ` Corinna Vinschen
2021-05-17 13:02 ` Ken Brown
2021-05-17 13:02 ` Ken Brown
2021-05-20 13:46 ` Ken Brown
2021-05-20 19:25 ` Corinna Vinschen
2021-05-21 21:54 ` Ken Brown
2021-05-22 15:49 ` Corinna Vinschen
2021-05-22 16:50 ` Ken Brown
2021-05-22 18:21 ` Ken Brown
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