On Jun 2 14:46, Kristian Ivarsson via Cygwin wrote: > Hey folks (probably Corinna more specifically) > > As far as I know the "unix domain socket implementation" is not really > complete > > We tried it and it didn't work for our purposes (the symptoms were UDP-like, > i.e. it seemed that some messages were lost along the way (or possibly ended > up in the wrong order)
That shouldn't occur because the current AF_UNIX implementation is using AF_INET sockets under the hood, and it doesn't implement any packet caching overriding the OS buffers. > As far as I understand, Microsoft/WinSock support AF_UNIX/AF_LOCAL with (at > least) SOCK_STREAM (I do not really know what system dependencies it > requires though and thus the Cygwin implementation might not utilize that at > all?) If we'd only support W10, that might be ok, but as long as we support Vista/7/8/8.1, we need something else. > The branch topic/af_unix seems to address this issue, so our question is if > anyone knows the status of the AF_UNIX/AF_LOCAL progress ? This is the new AF_UNIX implementation using pipes under the hood. I started it quite some while ago but got thoroughly sidetracked and have a lot other stuff on my plate. The skeleton code is already in master. The topic branch is a bit outdated and split from master so some merging is needed. It's built into the Cygwin DLL with -D__WITH_AF_UNIX. What this code needs is some dusting off and somebody picking it up again. Maybe in winter I have some time for that again, but it wouldn't hurt to have somebody else with interest in the new implementation to help. Patches welcome! Also, nothing speaks against a third implementation using native Windows AF_UNIX sockets under the hood on systems supporting them, provided the pipe implementation works on older systems, too. Corinna -- Corinna Vinschen Cygwin Maintainer -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
