Commits
Weston Pace authored and Antoine Pitrou committed 495eb168e86
ARROW-14702: [Doc][C++] Document threading model Closes #12670 from westonpace/feature/ARROW-14702--document-threading-model Authored-by: Weston Pace <weston.pace@gmail.com> Signed-off-by: Antoine Pitrou <antoine@python.org>