On Sat, Nov 21, 2015 at 4:59 PM, Ernesto Rodriguez <neto@netowork.me> wrote:
When I attempt doing things like that, I usually get a deadlock. Is there any way to do this (I know, X is old :( but no harm in asking).
You can't, no, X11 is essentially incapable of it. (To the extent that gtk2/3 has hacks to forward stuff to the main thread.)
Individual threads can open their own connections, a trick you'll see in various contribs, but you can't share stuff between them; the best you could do is send clientMessages from one thread to the other.
(X11 has a call to "enable" multithreading. This wraps a Big Global Lock around all of X11. Even if you're using xcb, apparently, since if xcb could do it properly gtk wouldn't go to such lengths to avoid it.)