From: PiBa-NL <PiBa.NL.dev@gmail.com>
Date: Wed, 2 May 2018 20:27:14 +0000 (+0200)
Subject: BUG/MINOR, BUG/MINOR: lua: Put tasks to sleep when waiting for data
X-Git-Tag: v1.9-dev1~276
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fe971b35aeca9994f3823112c783aa796e74075a;p=thirdparty%2Fhaproxy.git

BUG/MINOR, BUG/MINOR: lua: Put tasks to sleep when waiting for data

If a lua socket is waiting for data it currently spins at 100% cpu usage.
This because the TICK_ETERNITY returned by the socket is ignored when
setting the 'expire' time of the task.

Fixed by removing the check for yields that return TICK_ETERNITY.

This should be backported to at least 1.8.
---

diff --git a/src/hlua.c b/src/hlua.c
index 32199c9640..4c56409cb4 100644
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -5552,8 +5552,7 @@ static struct task *hlua_process_task(struct task *task)
 
 	case HLUA_E_AGAIN: /* co process or timeout wake me later. */
 		notification_gc(&hlua->com);
-		if (hlua->wake_time != TICK_ETERNITY)
-			task->expire = hlua->wake_time;
+		task->expire = hlua->wake_time;
 		break;
 
 	/* finished with error. */