On Thu, Jan 12, 2017 at 2:13 PM, Corinna Vinschen <corinna-cyg...@cygwin.com> wrote: > Step 3: > > If we did it really intelligent, maybe we finally also have a method > to implement descriptor passing. Finally. After all these years. > > And maybe, we should not actually use the socket itself to exchange > the information but rather create some kind of side-channle for that. > > Especially in terms of step 3, I'm mulling over this for years now > and always something else got in the way and had to be done first. > >
I made a program that needed to pass windows HANDLEs between processes and so that receiving process could access the shared memory represented by the HANDLEs. I was emulating facilities many programs implement using send_msg, but I was using Windows (named?) pipes. It felt a lot like what you need for send_msg, and it required newer Windows APIs. So by doing the crazy thing of completely rewriting your AF_UNIX sockets you could "easily" add descriptor passing. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
