MINOR: checks: Don't try to send outgoing data if waiting to be able to send

It is useless to try to send outgoing data if the check is still waiting to be
able to send data.

No backport needed.

(cherry picked from commit d94653700437430864c03090d710b95f4e860321)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>

diff --git a/src/checks.c b/src/checks.c
index 90ccff13ead99f5e064387f02433d2d3e7ffce6f..901deb991f0df61f73b3fd620c315e060a17fe98 100644 (file)
--- a/src/checks.c
+++ b/src/checks.c
@@ -2654,6 +2654,10 @@ static int tcpcheck_main(struct check *check)
         *    TCPCHK_ACT_SEND. */
        else if (check->current_step && check->current_step->action == TCPCHK_ACT_SEND) {
                if (conn && b_data(&check->bo)) {
+                       /* We're already waiting to be able to send, give up */
+                       if (check->wait_list.events & SUB_RETRY_SEND)
+                               goto out;
+
                        ret = conn->mux->snd_buf(cs, &check->bo,
                                                 (IS_HTX_CONN(conn) ? (htxbuf(&check->bo))->data: b_data(&check->bo)), 0);
                        if (ret <= 0) {