the get_request_end_time() part only.
ylavic: +1 with the below patch (simply adding get_request_end_time() and related):
https://people.apache.org/~ylavic/httpd-2.2.x-req_duration_milliseconds-v4.patch
+ Or with this simpler patch using apr_time_now() instead (as other duration functions):
+ https://people.apache.org/~ylavic/httpd-2.2.x-req_duration_milliseconds-v1.patch
* mpm_winnt service.c: Accept utf-8 service names/descriptions for i18n.
trunk patches: http://svn.apache.org/r1611165