X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fsession.h;h=1a31d3f0bdfd5fe9240a8de968428a7ed6293924;hb=e1bbf98908a6399f39a9a8bc95bd8b59cecaa816;hp=e6ed40cc2927f624ce3255492a91e129edcb5a8c;hpb=d7b377ed1acd4043bde353d99122e0e56fa4e975;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/session.h b/src/bin/lttng-sessiond/session.h
index e6ed40cc2..1a31d3f0b 100644
--- a/src/bin/lttng-sessiond/session.h
+++ b/src/bin/lttng-sessiond/session.h
@@ -68,7 +68,7 @@ struct ltt_session {
 	char name[NAME_MAX];
 	bool has_auto_generated_name;
 	bool name_contains_creation_time;
-	char hostname[HOST_NAME_MAX]; /* Local hostname. */
+	char hostname[LTTNG_HOST_NAME_MAX]; /* Local hostname. */
 	/* Path of the last closed chunk. */
 	char last_chunk_path[LTTNG_PATH_MAX];
 	time_t creation_time;
@@ -145,6 +145,10 @@ struct ltt_session {
 	 * Node in ltt_sessions_ht_by_id.
 	 */
 	struct lttng_ht_node_u64 node;
+	/*
+	 * Node in ltt_sessions_ht_by_name.
+	 */
+	struct lttng_ht_node_str node_by_name;
 	/*
 	 * Timer to check periodically if a relay and/or consumer has completed
 	 * the last rotation.
@@ -206,7 +210,7 @@ void session_unlock(struct ltt_session *session);
  * also used as a multi-session lock when synchronizing newly-registered
  * 'user space tracer' and 'agent' applications.
  *
- * In other words, it prevents session configurations from changing while they
+ * In other words, it prevents tracer configurations from changing while they
  * are being transmitted to the various applications.
  */
 void session_lock_list(void);
@@ -278,4 +282,15 @@ enum lttng_error_code session_open_packets(struct ltt_session *session);
 
 bool session_output_supports_trace_chunks(const struct ltt_session *session);
 
+/*
+ * Sample the id of a session looked up via its name.
+ * Here the term "sampling" hint the caller that this return the id at a given
+ * point in time with no guarantee that the session for which the id was
+ * sampled still exist at that point.
+ *
+ * Return 0 when the session is not found,
+ * Return 1 when the session is found and set `id`.
+ */
+bool sample_session_id_by_name(const char *name, uint64_t *id);
+
 #endif /* _LTT_SESSION_H */