ngx_http_empty_handler  103 http/ngx_http.h void ngx_http_empty_handler(ngx_event_t *wev);
ngx_http_empty_handler  206 http/ngx_http_request.c     c->write->handler = ngx_http_empty_handler;
ngx_http_empty_handler  615 http/ngx_http_request.c         /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
ngx_http_empty_handler 2462 http/ngx_http_request.c     wev->handler = ngx_http_empty_handler;
ngx_http_empty_handler 2736 http/ngx_http_request.c     wev->handler = ngx_http_empty_handler;