Fix: cmd_rotate_session() returns unexpected error codes

[lttng-tools.git] / src / bin / lttng-sessiond / ust-app.h

diff --git a/src/bin/lttng-sessiond/ust-app.h b/src/bin/lttng-sessiond/ust-app.h
index c3e37e0712b69b49274c1d6b6b16df30785d7343..a5dc0d300c51a790bd762d85307829bd50389a44 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.h
+++ b/src/bin/lttng-sessiond/ust-app.h
@@ -137,7 +137,11 @@ struct ust_app_channel {
        int handle;
        /* Channel and streams were sent to the UST tracer. */
        int is_sent;
-       /* Unique key used to identify the channel on the consumer side. */
+       /*
+        * Unique key used to identify the channel on the consumer side.
+        * 0 is a reserved 'invalid' value used to indicate that the consumer
+        * does not know about this channel (i.e. an error occured).
+        */
        uint64_t key;
        /* Id of the tracing channel set on creation. */
        uint64_t tracing_channel_id;
@@ -356,7 +360,7 @@ int ust_app_pid_get_channel_runtime_stats(struct ltt_ust_session *usess,
                struct consumer_output *consumer,
                int overwrite, uint64_t *discarded, uint64_t *lost);
 int ust_app_regenerate_statedump_all(struct ltt_ust_session *usess);
-int ust_app_rotate_session(struct ltt_session *session, bool *ust_active);
+int ust_app_rotate_session(struct ltt_session *session);
 
 static inline
 int ust_app_supported(void)
@@ -591,7 +595,7 @@ int ust_app_regenerate_statedump_all(struct ltt_ust_session *usess)
 }
 
 static inline
-int ust_app_rotate_session(struct ltt_session *session, bool *ust_active)
+enum lttng_error_code ust_app_rotate_session(struct ltt_session *session)
 {
        return 0;
 }