From: Amaury Denoyelle <adenoyelle@haproxy.com>
Date: Tue, 4 Aug 2026 14:54:19 +0000 (+0200)
Subject: MINOR: list: define watcher_is_attached()
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=32c2757c7fb6840500b835d9df8e52a8cbcf509d;p=thirdparty%2Fhaproxy.git

MINOR: list: define watcher_is_attached()

Define an utility function to report if a watcher is currently attached
on a target. This will notably be used to implement a new CLI command
"show default-server".
---

diff --git a/include/haproxy/list.h b/include/haproxy/list.h
index 95cc78a75..e4c75dc6f 100644
--- a/include/haproxy/list.h
+++ b/include/haproxy/list.h
@@ -272,6 +272,12 @@ static __inline void watcher_init(struct watcher *w, void *pptr, size_t attach_o
 	w->off = attach_off;
 }
 
+/* Returns true if <w> is currently tracking a target else false. */
+static __inline int watcher_is_attached(const struct watcher *w)
+{
+	return MT_LIST_INLIST(&w->el);
+}
+
 /* Tracks <target> via <w> watcher. Invalid if <w> is already attached. */
 static __inline void watcher_attach(struct watcher *w, void *target)
 {