Merge pull request #20607 from shangfufei/test_stack

msg/async:fix the incoming parameter type of EventCenter::process_events()

Reviewed-by: Haomai Wang <haomai@xsky.com>
Reviewed-by: Kefu Chai <kchai@redhat.com>

diff --cc src/msg/async/Event.cc
Simple merge

diff --cc src/msg/async/Event.h
Simple merge