AP_MPM_WANT_SET_GRACEFUL_SHUTDOWN   48 server/mpm/experimental/event/mpm.h #define AP_MPM_WANT_SET_GRACEFUL_SHUTDOWN
AP_MPM_WANT_SET_GRACEFUL_SHUTDOWN   50 server/mpm/prefork/mpm.h #define AP_MPM_WANT_SET_GRACEFUL_SHUTDOWN
AP_MPM_WANT_SET_GRACEFUL_SHUTDOWN   48 server/mpm/worker/mpm.h #define AP_MPM_WANT_SET_GRACEFUL_SHUTDOWN