Commits
Nate Clark authored and Antoine Pitrou committed 3cc48bea05f
ARROW-15427: [C++][Gandiva] Use a lock guard to hold a mutex Use a lock guard to guarantee that the lock is released when the method returns. Update method signatures to use const references like the underlying LruCache implementation. Closes #12238 from n3world/ARROW-15427-use_guard Authored-by: Nate Clark <nate@neworld.us> Signed-off-by: Antoine Pitrou <antoine@python.org>