ngx_gettimeofday   86 core/ngx_times.c     ngx_gettimeofday(&tv);
ngx_gettimeofday  196 core/ngx_times.c     ngx_gettimeofday(&tv);
ngx_gettimeofday  794 http/modules/ngx_http_userid_filter_module.c     ngx_gettimeofday(&tp);