AsyncioEventLoop: wrap child watcher for thread safety (bug 764905)

Use a child watcher wrapper to deliver the callbacks via the
call_soon_threadsafe method, since documentation for the asycio
AbstractChildWatcher class says that callbacks must be thread
safe.

Bug: https://bugs.gentoo.org/764905
Signed-off-by: Zac Medico <zmedico@gentoo.org>
1 file changed