$XDG_RUNTIME_DIR is the place where to put socket files these days.
It seems good practice to create a sub-directory as well, perhaps we create more files there in the future.
The fallback to write in /tmp remains for the rare occasions where $XDG_RUNTIME_DIR cannot be used. You can view, comment on, or merge this pull request online at:
https://github.com/geany/geany/pull/2222
-- Commit Summary --
* prefer XDG_RUNTIME_DIR over /tmp for the socket
-- File Changes --
M src/socket.c (31)
-- Patch Links --
https://github.com/geany/geany/pull/2222.patch https://github.com/geany/geany/pull/2222.diff