NGX_HTTP_LAST     191 http/modules/ngx_http_addition_filter_module.c     return ngx_http_send_special(r, NGX_HTTP_LAST);
NGX_HTTP_LAST     261 http/modules/perl/ngx_http_perl_module.c         ngx_http_send_special(r, NGX_HTTP_LAST);
NGX_HTTP_LAST    2845 http/ngx_http_request.c     if (flags & NGX_HTTP_LAST) {
NGX_HTTP_LAST    3028 http/ngx_http_upstream.c         rc = ngx_http_send_special(r, NGX_HTTP_LAST);