M_CHECKIN        4688 modules/dav/main/mod_dav.c     if (r->method_number == M_CHECKIN) {
M_CHECKIN         444 modules/http/http_protocol.c     register_one_method(p, "CHECKIN", M_CHECKIN);
M_CHECKIN         612 modules/http/http_protocol.c                     ? M_CHECKIN : UNKNOWN_METHOD);