src.ctf.lttng-live: make component class handle interruptions

[babeltrace.git] / src / plugins / ctf / lttng-live / lttng-live.h

diff --git a/src/plugins/ctf/lttng-live/lttng-live.h b/src/plugins/ctf/lttng-live/lttng-live.h
index bb1c760ee6a6efe0aaf63bab26213c005711fcba..1447cc5d2815ea7bb16a65a6f934b36191b8d2c5 100644 (file)
--- a/src/plugins/ctf/lttng-live/lttng-live.h
+++ b/src/plugins/ctf/lttng-live/lttng-live.h
@@ -238,6 +238,9 @@ struct lttng_live_msg_iter {
 
        /* Timestamp in nanosecond of the last message sent downstream. */
        int64_t last_msg_ts_ns;
+
+       /* True if the iterator was interrupted. */
+       bool was_interrupted;
 };
 
 enum lttng_live_iterator_status {
@@ -285,18 +288,16 @@ bt_component_class_message_iterator_initialize_method_status lttng_live_msg_iter
 
 void lttng_live_msg_iter_finalize(bt_self_message_iterator *it);
 
-int lttng_live_create_viewer_session(struct lttng_live_msg_iter *lttng_live_msg_iter);
-
-enum lttng_live_attach_session_status {
-       LTTNG_LIVE_ATTACH_SESSION_STATUS_OK     = 0,
-       LTTNG_LIVE_ATTACH_SESSION_STATUS_ERROR  = -2,
-};
+enum lttng_live_viewer_status lttng_live_create_viewer_session(
+               struct lttng_live_msg_iter *lttng_live_msg_iter);
 
-enum lttng_live_attach_session_status lttng_live_attach_session(
+enum lttng_live_viewer_status lttng_live_attach_session(
                struct lttng_live_session *session,
                bt_self_message_iterator *self_msg_iter);
 
-int lttng_live_detach_session(struct lttng_live_session *session);
+enum lttng_live_viewer_status lttng_live_detach_session(
+               struct lttng_live_session *session);
+
 enum lttng_live_iterator_status lttng_live_get_new_streams(
                struct lttng_live_session *session,
                bt_self_message_iterator *self_msg_iter);
@@ -306,20 +307,6 @@ int lttng_live_add_session(struct lttng_live_msg_iter *lttng_live_msg_iter,
                const char *hostname,
                const char *session_name);
 
-enum lttng_live_get_one_metadata_status {
-       /* The end of the metadata stream was reached. */
-       LTTNG_LIVE_GET_ONE_METADATA_STATUS_END      = 1,
-       /* One metadata packet was received and written to file. */
-       LTTNG_LIVE_GET_ONE_METADATA_STATUS_OK       = 0,
-       /* The metadata stream was not found on the relay. */
-       LTTNG_LIVE_GET_ONE_METADATA_STATUS_CLOSED   = -1,
-       /*
-        * A critical error occurred when contacting the relay or while
-        * handling its response.
-        */
-       LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR    = -2,
-};
-
 /*
  * lttng_live_get_one_metadata_packet() asks the Relay Daemon for new metadata.
  * If new metadata is received, the function writes it to the provided file