X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fmain.c;h=9519eb397d789c89350085bbb5bcb550077cf94f;hb=a04821e0fb5919edd3130dc56dc14bd2ca3b6ee4;hp=2ace82b966f9bb692e80591a38d28f6b22f28798;hpb=9c9107228280bcffde8eb79cf8bb34c8208e04a4;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index 2ace82b96..9519eb397 100644
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -582,6 +582,34 @@ static int generate_lock_file_path(char *path, size_t len)
 	return ret;
 }
 
+/*
+ * Wait on consumer process termination.
+ *
+ * Need to be called with the consumer data lock held or from a context
+ * ensuring no concurrent access to data (e.g: cleanup).
+ */
+static void wait_consumer(struct consumer_data *consumer_data)
+{
+	pid_t ret;
+	int status;
+
+	if (consumer_data->pid <= 0) {
+		return;
+	}
+
+	DBG("Waiting for complete teardown of consumerd (PID: %d)",
+			consumer_data->pid);
+	ret = waitpid(consumer_data->pid, &status, 0);
+	if (ret == -1) {
+		PERROR("consumerd waitpid pid: %d", consumer_data->pid)
+	}
+	if (!WIFEXITED(status)) {
+		ERR("consumerd termination with error: %d",
+				WEXITSTATUS(ret));
+	}
+	consumer_data->pid = 0;
+}
+
 /*
  * Cleanup the session daemon's data structures.
  */
@@ -676,6 +704,10 @@ static void sessiond_cleanup(void)
 		}
 	}
 
+	wait_consumer(&kconsumer_data);
+	wait_consumer(&ustconsumer64_data);
+	wait_consumer(&ustconsumer32_data);
+
 	DBG("Cleaning up all agent apps");
 	agent_app_ht_clean();
 
@@ -1496,7 +1528,6 @@ error:
 
 	unlink(consumer_data->err_unix_sock_path);
 	unlink(consumer_data->cmd_unix_sock_path);
-	consumer_data->pid = 0;
 	pthread_mutex_unlock(&consumer_data->lock);
 
 	/* Cleanup metadata socket mutex. */
@@ -1985,7 +2016,7 @@ static void *thread_dispatch_ust_registration(void *data)
 				 * Don't care about return value. Let the manage apps threads
 				 * handle app unregistration upon socket close.
 				 */
-				(void) ust_app_register_done(app->sock);
+				(void) ust_app_register_done(app);
 
 				/*
 				 * Even if the application socket has been closed, send the app