Fix: only synchronize application configuration on tracing start

[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..b90ff4bcef8833459268ba02f62dfc2e40bfc7e8 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 occurred).
+        */
        uint64_t key;
        /* Id of the tracing channel set on creation. */
        uint64_t tracing_channel_id;
@@ -311,17 +315,12 @@ int ust_app_create_channel_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan);
 int ust_app_create_event_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
-int ust_app_enable_event_pid(struct ltt_ust_session *usess,
-               struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
-               pid_t pid);
 int ust_app_disable_channel_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan);
 int ust_app_enable_channel_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan);
 int ust_app_enable_event_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
-int ust_app_enable_all_event_glb(struct ltt_ust_session *usess,
-               struct ltt_ust_channel *uchan);
 int ust_app_disable_event_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
 int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess,
@@ -341,7 +340,7 @@ void ust_app_notify_sock_unregister(int sock);
 ssize_t ust_app_push_metadata(struct ust_registry_session *registry,
                struct consumer_socket *socket, int send_zero_data);
 void ust_app_destroy(struct ust_app *app);
-int ust_app_snapshot_record(struct ltt_ust_session *usess,
+enum lttng_error_code ust_app_snapshot_record(struct ltt_ust_session *usess,
                struct snapshot_output *output, int wait,
                uint64_t nb_packets_per_stream);
 uint64_t ust_app_get_size_one_more_packet_per_stream(
@@ -356,7 +355,7 @@ 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);
+enum lttng_error_code ust_app_rotate_session(struct ltt_session *session);
 
 static inline
 int ust_app_supported(void)
@@ -464,12 +463,6 @@ int ust_app_create_channel_glb(struct ltt_ust_session *usess,
        return 0;
 }
 static inline
-int ust_app_enable_all_event_glb(struct ltt_ust_session *usess,
-               struct ltt_ust_channel *uchan)
-{
-       return 0;
-}
-static inline
 int ust_app_create_event_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent)
 {
@@ -535,7 +528,7 @@ void ust_app_destroy(struct ust_app *app)
        return;
 }
 static inline
-int ust_app_snapshot_record(struct ltt_ust_session *usess,
+enum lttng_error_code ust_app_snapshot_record(struct ltt_ust_session *usess,
                struct snapshot_output *output, int wait, uint64_t max_stream_size)
 {
        return 0;
@@ -591,7 +584,7 @@ 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;
 }