Fix: perform a rotation to a null trace chunk on session destruction

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

diff --git a/src/bin/lttng-sessiond/session.h b/src/bin/lttng-sessiond/session.h
index 1cea52a61fc64a75169041aa7bbddee7b8180082..6b7d63c3cba5084d9425f37732cc78277826d19c 100644 (file)
--- a/src/bin/lttng-sessiond/session.h
+++ b/src/bin/lttng-sessiond/session.h
@@ -23,6 +23,7 @@
 #include <urcu/list.h>
 
 #include <common/hashtable/hashtable.h>
+#include <common/dynamic-array.h>
 #include <lttng/rotation.h>
 #include <lttng/location.h>
 #include <lttng/lttng-error.h>
@@ -33,6 +34,9 @@
 
 struct ltt_ust_session;
 
+typedef void (*ltt_session_destroy_notifier)(const struct ltt_session *session,
+               void *user_data);
+
 /*
  * Tracing session list
  *
@@ -176,8 +180,10 @@ struct ltt_session {
        struct lttng_trace_chunk *chunk_being_archived;
        /* Current state of a rotation. */
        enum lttng_rotation_state rotation_state;
+       bool quiet_rotation;
        char *last_archived_chunk_name;
        LTTNG_OPTIONAL(uint64_t) last_archived_chunk_id;
+       struct lttng_dynamic_array destroy_notifiers;
 };
 
 /* Prototypes */
@@ -190,6 +196,8 @@ void session_unlock(struct ltt_session *session);
 void session_unlock_list(void);
 
 void session_destroy(struct ltt_session *session);
+int session_add_destroy_notifier(struct ltt_session *session,
+               ltt_session_destroy_notifier notifier, void *user_data);
 
 bool session_get(struct ltt_session *session);
 void session_put(struct ltt_session *session);
@@ -202,7 +210,7 @@ void session_get_net_consumer_ports(
                const struct ltt_session *session,
                uint16_t *control_port, uint16_t *data_port);
 struct lttng_trace_archive_location *session_get_trace_archive_location(
-               struct ltt_session *session);
+               const struct ltt_session *session);
 
 struct ltt_session *session_find_by_name(const char *name);
 struct ltt_session *session_find_by_id(uint64_t id);
@@ -217,7 +225,8 @@ int session_reset_rotation_state(struct ltt_session *session,
 
 /* Create a new trace chunk object from the session's configuration. */
 struct lttng_trace_chunk *session_create_new_trace_chunk(
-               struct ltt_session *session,
+               const struct ltt_session *session,
+               const struct consumer_output *consumer_output_override,
                const char *session_base_path_override,
                const char *chunk_name_override);
 
@@ -238,6 +247,9 @@ int session_set_trace_chunk(struct ltt_session *session,
  * ltt_session itself.
  */
 int session_close_trace_chunk(const struct ltt_session *session,
-               struct lttng_trace_chunk *trace_chunk);
+               struct lttng_trace_chunk *trace_chunk,
+               const enum lttng_trace_chunk_command_type *close_command);
+
+bool session_output_supports_trace_chunks(const struct ltt_session *session);
 
 #endif /* _LTT_SESSION_H */