tree b3f4e1e22f73c5e0ebf5fe085c507e5e7141737d
parent 6f2e05d7e2bdd8f58adb96251bd07d744973e2c0
author Weston Pace <weston.pace@gmail.com> 1618408839 -0400
committer David Li <li.davidm96@gmail.com> 1618408839 -0400

ARROW-12220: [C++][CI] Thread sanitizer failure

The background generator kept reading from the source even after the downstream had given up on it.  Other than the obvious memory / resource usage problems this also meant that callback handlers could reference deleted state downstream.  Now we block the destructor until the background thread is finished and we stop the background thread early if all consumer references are lost.

Closes #9941 from westonpace/bugfix/arrow-12220

Authored-by: Weston Pace <weston.pace@gmail.com>
Signed-off-by: David Li <li.davidm96@gmail.com>