MEDIUM: connections: Put H2 connections in the idle list if http-reuse always.

When creating a new outgoing H2 connection, put it in the idle list so that
it's immediately available for others to use, if http-reuse always is used.

diff --git a/src/backend.c b/src/backend.c
index 19157baa6719b3f2b1a335e97e5ee02f629de51b..fa01a7d240f73be8382577ccca981e968f4fabac 100644 (file)
--- a/src/backend.c
+++ b/src/backend.c
@@ -1045,6 +1045,7 @@ static int conn_complete_server(struct connection *conn)
 {
        struct conn_stream *cs = NULL;
        struct stream *s = conn->mux_ctx;
+       struct server *srv;
 
        task_wakeup(s->task, TASK_WOKEN_IO);
        conn_clear_xprt_done_cb(conn);
@@ -1062,6 +1063,11 @@ static int conn_complete_server(struct connection *conn)
                goto fail;
        if (conn_install_mux_be(conn, cs) < 0)
                goto fail;
+       srv = objt_server(s->target);
+       if (srv && ((s->be->options & PR_O_REUSE_MASK) == PR_O_REUSE_ALWS) &&
+                           conn->mux->avail_streams(conn) > 0)
+                               LIST_ADD(&srv->idle_conns[tid], &conn->list);
+
        return 0;
 
 fail:
@@ -1279,6 +1285,13 @@ int connect_server(struct stream *s)
                        }
                        if (conn_install_mux_be(srv_conn, srv_cs) < 0)
                                return SF_ERR_INTERNAL;
+                       /* If we're doing http-reuse always, and the connection
+                        * is an http2 connection, add it to the available list,
+                        * so that others can use it right away.
+                        */
+                       if (srv && ((s->be->options & PR_O_REUSE_MASK) == PR_O_REUSE_ALWS) &&
+                           srv_conn->mux->avail_streams(srv_conn) > 0)
+                               LIST_ADD(&srv->idle_conns[tid], &srv_conn->list);
                }
 #if defined(USE_OPENSSL) && defined(TLSEXT_TYPE_application_layer_protocol_negotiation)
                else {