MINOR: proxy: disabled takes a stopping and a disabled state

This patch splits the disabled state of a proxy into a PR_DISABLED and a
PR_STOPPED state.

The first one is set when the proxy is disabled in the configuration
file, and the second one is set upon a stop_proxy().

include/haproxy/proxy-t.h

@@ -200,6 +200,11 @@ enum PR_SRV_STATE_FILE {
  */
 #define PR_RE_EARLY_ERROR         0x00010000 /* Retry if we failed at sending early data */
 #define PR_RE_JUNK_REQUEST        0x00020000 /* We received an incomplete or garbage response */
+
+/* disabled state */
+#define PR_DISABLED               0x1  /* The proxy was disabled in the configuration (not at runtime) */
+#define PR_STOPPED                0x2  /* The proxy was stopped */
+
 struct stream;
 
 struct http_snapshot {
@@ -254,7 +259,7 @@ struct error_snapshot {
 
 struct proxy {
 	enum obj_type obj_type;                 /* object type == OBJ_TYPE_PROXY */
-	char disabled;                          /* non-zero if disabled or shutdown */
+	char disabled;                          /* bit field PR_DISABLED | PR_STOPPED */
 	enum pr_mode mode;                      /* mode = PR_MODE_TCP, PR_MODE_HTTP, ... */
 	char cap;                               /* supported capabilities (PR_CAP_*) */
 	unsigned int maxconn;                   /* max # of active streams on the frontend */

src/cfgparse-listen.c

@@ -593,7 +593,7 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
 	else if (strcmp(args[0], "disabled") == 0) {  /* disables this proxy */
 		if (alertif_too_many_args(0, file, linenum, args, &err_code))
 			goto out;
-		curproxy->disabled = 1;
+		curproxy->disabled = PR_DISABLED;
 	}
 	else if (strcmp(args[0], "enabled") == 0) {  /* enables this proxy (used to revert a disabled default) */
 		if (alertif_too_many_args(0, file, linenum, args, &err_code))

src/cfgparse.c

@@ -1018,7 +1018,7 @@ int cfg_parse_peers(const char *file, int linenum, char **args, int kwm)
 		stktables_list = t;
 	}
 	else if (strcmp(args[0], "disabled") == 0) {  /* disables this peers section */
-		curpeers->disabled = 1;
+		curpeers->disabled = PR_DISABLED;
 	}
 	else if (strcmp(args[0], "enabled") == 0) {  /* enables this peers section (used to revert a disabled default) */
 		curpeers->disabled = 0;

src/mworker.c

@@ -443,7 +443,7 @@ void mworker_cleanlisteners()
 		}
 		/* if the proxy shouldn't be in the master, we stop it */
 		if (!listen_in_master)
-			curproxy->disabled = 1;
+			curproxy->disabled = PR_DISABLED;
 	}
 }
 

src/proxy.c

@@ -1801,7 +1801,7 @@ void proxy_cond_disable(struct proxy *p)
 	if (p->li_ready + p->li_paused > 0)
 		return;
 
-	p->disabled = 1;
+	p->disabled = PR_STOPPED;
 
 	/* Note: syslog proxies use their own loggers so while it's somewhat OK
 	 * to report them being stopped as a warning, we must not spam their log
@@ -2050,7 +2050,7 @@ void stop_proxy(struct proxy *p)
 
 	if (!p->disabled && !p->li_ready) {
 		/* might be just a backend */
-		p->disabled = 1;
+		p->disabled |= PR_STOPPED;
 	}
 
 	HA_RWLOCK_WRUNLOCK(PROXY_LOCK, &p->lock);