X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=lttng-sessiond%2Fmain.c;h=2e6292d38a7e567b84d96484d8be22c10f9e28eb;hp=d1cc3fa8f81a3aec484e6ca476720ff9a3e7fa48;hb=464dd62d5617322366e321877b440951e00a0152;hpb=5450ed5091dd727e58b412b6b9a6cb94ae74b609

diff --git a/lttng-sessiond/main.c b/lttng-sessiond/main.c
index d1cc3fa8f..2e6292d38 100644
--- a/lttng-sessiond/main.c
+++ b/lttng-sessiond/main.c
@@ -1790,6 +1790,7 @@ static void list_lttng_sessions(struct lttng_session *sessions)
 		sessions[i].path[PATH_MAX - 1] = '\0';
 		strncpy(sessions[i].name, session->name, NAME_MAX);
 		sessions[i].name[NAME_MAX - 1] = '\0';
+		sessions[i].enabled = session->enabled;
 		i++;
 	}
 }
@@ -2512,6 +2513,10 @@ static int cmd_start_trace(struct ltt_session *session)
 	ksession = session->kernel_session;
 	usess = session->ust_session;
 
+	if (session->enabled)
+		return LTTCOMM_UST_START_FAIL;
+	session->enabled = 1;
+
 	/* Kernel tracing */
 	if (ksession != NULL) {
 		struct ltt_kernel_channel *kchan;
@@ -2597,6 +2602,10 @@ static int cmd_stop_trace(struct ltt_session *session)
 	/* Short cut */
 	ksession = session->kernel_session;
 
+	if (!session->enabled)
+		return LTTCOMM_UST_START_FAIL;
+	session->enabled = 0;
+
 	/* Kernel tracer */
 	if (ksession != NULL) {
 		DBG("Stop kernel tracing");