[M] Change in libosmocore[master]: After writing VTY config, run sync() in a different thread

Attention is currently required from: fixeria, jolly, laforge.

Hoernchen has posted comments on this change by jolly. ( https://gerrit.osmocom.org/c/libosmocore/+/37798?usp=email )

Change subject: After writing VTY config, run sync() in a different thread ......................................................................

Patch Set 2:

(1 comment)

Patchset:

PS2: I do like the idea to have a mostly sleeping background thread that handles syncing, the vty issue affects the ms-sdr too. It just has to keep existing and sleeping to ensure we don't pay the overhead of thread creation all the time. Passing specific fs via pipes would probably work, too.