From: Christopher Faulet <cfaulet@haproxy.com>
Date: Tue, 23 Jan 2024 06:42:08 +0000 (+0100)
Subject: MINOR: applet: Add an appctx flag to report shutdown to applets
X-Git-Tag: v3.0-dev3~57
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cc7b141e1ce99bd14501b660824e3ae5ec101365;p=thirdparty%2Fhaproxy.git

MINOR: applet: Add an appctx flag to report shutdown to applets

There is no shutdown for reads and send with applets. Both are performed
when the appctx is released. So instead of 2 flags, like for
muxes/connections, only one flag is used. But the idea is the same:
acknowledge the event at the applet level.
---

diff --git a/include/haproxy/applet-t.h b/include/haproxy/applet-t.h
index bd3bf68ca0..f4e4241089 100644
--- a/include/haproxy/applet-t.h
+++ b/include/haproxy/applet-t.h
@@ -44,7 +44,8 @@
 #define APPCTX_FL_EOS            0x00000020
 #define APPCTX_FL_ERR_PENDING    0x00000040
 #define APPCTX_FL_ERROR          0x00000080
-#define APPCTX_FL_WANT_DIE       0x00000100  /* applet was running and requested to die */
+#define APPCTX_FL_SHUTDOWN       0x00000100  /* applet was shut down (->release() called if any). No more data exchange with SCs */
+#define APPCTX_FL_WANT_DIE       0x00000200  /* applet was running and requested to die */
 
 struct appctx;
 struct proxy;
diff --git a/src/applet.c b/src/applet.c
index 77f69346a9..90918c8827 100644
--- a/src/applet.c
+++ b/src/applet.c
@@ -395,6 +395,7 @@ void appctx_shut(struct appctx *appctx)
 	TRACE_ENTER(APPLET_EV_RELEASE, appctx);
 	if (appctx->applet->release)
 		appctx->applet->release(appctx);
+	applet_fl_set(appctx, APPCTX_FL_SHUTDOWN);
 
 	if (LIST_INLIST(&appctx->buffer_wait.list))
 		LIST_DEL_INIT(&appctx->buffer_wait.list);