From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Mon, 19 Nov 2018 21:12:17 +0000 (-0500)
Subject: Cleanup: ust start/stop trace
X-Git-Tag: v2.12.0-rc1~685
X-Git-Url: http://git.lttng.org./?a=commitdiff_plain;h=bb2452c85ee39c793838f637f830620b0603dc7d;p=lttng-tools.git

Cleanup: ust start/stop trace

Move setting/clearing the session "active" state from cmd.c to
cmd_start_trace()/cmd_stop_trace() for better encapsulation of
behavior.

Reduces the amount of code to maintain in the catch-all cmd.c.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/src/bin/lttng-sessiond/cmd.c b/src/bin/lttng-sessiond/cmd.c
index 507274f35..d3c8376be 100644
--- a/src/bin/lttng-sessiond/cmd.c
+++ b/src/bin/lttng-sessiond/cmd.c
@@ -2684,12 +2684,6 @@ int cmd_start_trace(struct ltt_session *session)
 
 	/* Flag session that trace should start automatically */
 	if (usess) {
-		/*
-		 * Even though the start trace might fail, flag this session active so
-		 * other application coming in are started by default.
-		 */
-		usess->active = 1;
-
 		ret = ust_app_start_trace_all(usess);
 		if (ret < 0) {
 			ret = LTTNG_ERR_UST_START_FAIL;
@@ -2781,12 +2775,6 @@ int cmd_stop_trace(struct ltt_session *session)
 	}
 
 	if (usess && usess->active) {
-		/*
-		 * Even though the stop trace might fail, flag this session inactive so
-		 * other application coming in are not started by default.
-		 */
-		usess->active = 0;
-
 		ret = ust_app_stop_trace_all(usess);
 		if (ret < 0) {
 			ret = LTTNG_ERR_UST_STOP_FAIL;
diff --git a/src/bin/lttng-sessiond/ust-app.c b/src/bin/lttng-sessiond/ust-app.c
index 8c5f3f6af..f88df7406 100644
--- a/src/bin/lttng-sessiond/ust-app.c
+++ b/src/bin/lttng-sessiond/ust-app.c
@@ -4996,6 +4996,12 @@ int ust_app_start_trace_all(struct ltt_ust_session *usess)
 
 	DBG("Starting all UST traces");
 
+	/*
+	 * Even though the start trace might fail, flag this session active so
+	 * other application coming in are started by default.
+	 */
+	usess->active = 1;
+
 	rcu_read_lock();
 
 	/*
@@ -5031,6 +5037,12 @@ int ust_app_stop_trace_all(struct ltt_ust_session *usess)
 
 	DBG("Stopping all UST traces");
 
+	/*
+	 * Even though the stop trace might fail, flag this session inactive so
+	 * other application coming in are not started by default.
+	 */
+	usess->active = 0;
+
 	rcu_read_lock();
 
 	cds_lfht_for_each_entry(ust_app_ht->ht, &iter.iter, app, pid_n.node) {