request_sent     1140 http/ngx_http_upstream.c     if (u->request_sent) {
request_sent     1174 http/ngx_http_upstream.c     u->request_sent = 0;
request_sent     1340 http/ngx_http_upstream.c     if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
request_sent     1347 http/ngx_http_upstream.c     rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs);
request_sent     1349 http/ngx_http_upstream.c     u->request_sent = 1;
request_sent     1471 http/ngx_http_upstream.c     if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
request_sent      311 http/ngx_http_upstream.h     unsigned                         request_sent:1;