NGX_HTTP_AIO_THREADS  138 src/http/ngx_http_copy_filter_module.c         if (clcf->aio == NGX_HTTP_AIO_THREADS) {
NGX_HTTP_AIO_THREADS 4694 src/http/ngx_http_core_module.c         clcf->aio = NGX_HTTP_AIO_THREADS;
NGX_HTTP_AIO_THREADS  676 src/http/ngx_http_file_cache.c     if (clcf->aio == NGX_HTTP_AIO_THREADS) {