X-Git-Url: https://git.efficios.com/?a=blobdiff_plain;f=src%2Fplugins%2Fctf%2Flttng-live%2Fviewer-connection.h;h=0a7aa91ad350750d376f2088e2bc26c16e5ecb4a;hb=8dd99d00b965805d6bb43e2641b4a65b33e79777;hp=ca5883e840491bc7ae6b9a95442a37abb2056536;hpb=403657fd5ba02ee6a241f29c856e6846b9cf8503;p=babeltrace.git

diff --git a/src/plugins/ctf/lttng-live/viewer-connection.h b/src/plugins/ctf/lttng-live/viewer-connection.h
index ca5883e8..0a7aa91a 100644
--- a/src/plugins/ctf/lttng-live/viewer-connection.h
+++ b/src/plugins/ctf/lttng-live/viewer-connection.h
@@ -39,6 +39,29 @@
 #define LTTNG_LIVE_MAJOR			2
 #define LTTNG_LIVE_MINOR			4
 
+enum lttng_live_viewer_status {
+	LTTNG_LIVE_VIEWER_STATUS_OK		= 0,
+	LTTNG_LIVE_VIEWER_STATUS_ERROR		= -1,
+	LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED	= -2,
+};
+
+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		= LTTNG_LIVE_VIEWER_STATUS_OK,
+	/*
+	 * A critical error occurred when contacting the relay or while
+	 * handling its response.
+	 */
+	LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR	= LTTNG_LIVE_VIEWER_STATUS_ERROR,
+
+	LTTNG_LIVE_GET_ONE_METADATA_STATUS_INTERRUPTED  = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED,
+
+	/* The metadata stream was not found on the relay. */
+	LTTNG_LIVE_GET_ONE_METADATA_STATUS_CLOSED	= -3,
+};
+
 struct lttng_live_component;
 
 struct live_viewer_connection {
@@ -81,12 +104,13 @@ struct packet_index {
 	uint64_t packet_seq_num;	/* packet sequence number */
 };
 
-struct live_viewer_connection * live_viewer_connection_create(
-		const char *url, bool in_query,
-		struct lttng_live_msg_iter *lttng_live_msg_iter,
+enum lttng_live_viewer_status live_viewer_connection_create(
 		bt_self_component *self_comp,
 		bt_self_component_class *self_comp_class,
-		bt_logging_level log_level);
+		bt_logging_level log_level,
+		const char *url, bool in_query,
+		struct lttng_live_msg_iter *lttng_live_msg_iter,
+		struct live_viewer_connection **viewer_connection);
 
 void live_viewer_connection_destroy(
 		struct live_viewer_connection *conn);