worker_open_logs 2220 server/mpm/experimental/event/event.c     ap_hook_open_logs(worker_open_logs, NULL, aszSucc, APR_HOOK_MIDDLE);
worker_open_logs 2007 server/mpm/worker/worker.c     ap_hook_open_logs(worker_open_logs, NULL, aszSucc, APR_HOOK_MIDDLE);