From: Thierry FOURNIER <thierry.fournier@ozon.io>
Date: Wed, 30 May 2018 09:40:08 +0000 (+0200)
Subject: MINOR: task/notification: Is notifications registered ?
X-Git-Tag: v1.9-dev1~230
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9d5422a4b7e71294cf7ce16d60490d907cc92f48;p=thirdparty%2Fhaproxy.git

MINOR: task/notification: Is notifications registered ?

This function returns true is some notifications are registered.

This function is usefull for the following patch

   BUG/MEDIUM: lua/socket: Sheduling error on write: may dead-lock

It should be backported in 1.6, 1.7 and 1.8
---

diff --git a/include/proto/task.h b/include/proto/task.h
index ef296f6e97..760b368b57 100644
--- a/include/proto/task.h
+++ b/include/proto/task.h
@@ -462,6 +462,13 @@ static inline void notification_wake(struct list *wake)
 	}
 }
 
+/* This function returns true is some notification are pending
+ */
+static inline int notification_registered(struct list *wake)
+{
+	return !LIST_ISEMPTY(wake);
+}
+
 /*
  * This does 3 things :
  *   - wake up all expired tasks