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BUG/MINOR: checks: Don't subscribe to I/O events if it is already done

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Subscription to I/O events should not be performed if the check is already
subscribed.

No backport needed.

(cherry picked from commit 9e0b3e92f73b6715fb2814e3d09b8ba62270b417)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
This commit is contained in:
Christopher Faulet 2020-05-09 17:27:43 +02:00
parent 2fabd9d535
commit a2fb0c3b6f
1 changed files with 10 additions and 5 deletions
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15
src/checks.c
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@ -2635,10 +2635,14 @@ static int tcpcheck_main(struct check *check)
if (check->current_step && check->current_step->action == TCPCHK_ACT_CONNECT) {
rule = LIST_NEXT(&check->current_step->list, typeof(rule), list);
if (conn && (conn->flags & CO_FL_WAIT_XPRT)) {
if (rule->action == TCPCHK_ACT_SEND)
conn->mux->subscribe(cs, SUB_RETRY_SEND, &check->wait_list);
else if (rule->action == TCPCHK_ACT_EXPECT)
conn->mux->subscribe(cs, SUB_RETRY_RECV, &check->wait_list);
if (rule->action == TCPCHK_ACT_SEND) {
if (!(check->wait_list.events & SUB_RETRY_SEND))
conn->mux->subscribe(cs, SUB_RETRY_SEND, &check->wait_list);
}
else if (rule->action == TCPCHK_ACT_EXPECT) {
if (!(check->wait_list.events & SUB_RETRY_RECV))
conn->mux->subscribe(cs, SUB_RETRY_RECV, &check->wait_list);
}
goto out;
}
}
@ -2736,7 +2740,8 @@ static int tcpcheck_main(struct check *check)
if (eval_ret == TCPCHK_EVAL_WAIT) {
check->current_step = rule->expect.head;
conn->mux->subscribe(cs, SUB_RETRY_RECV, &check->wait_list);
if (!(check->wait_list.events & SUB_RETRY_RECV))
conn->mux->subscribe(cs, SUB_RETRY_RECV, &check->wait_list);
}
break;
case TCPCHK_ACT_ACTION_KW: