-ssize_t kernel_list_tracker_pids(struct ltt_kernel_session *session,
- int **_pids);
-int kernel_supports_ring_buffer_snapshot_sample_positions(int tracer_fd);
+int kernel_list_tracker_ids(enum lttng_tracker_type tracker_type,
+ struct ltt_kernel_session *session,
+ struct lttng_tracker_ids **ids);
+int kernel_supports_ring_buffer_snapshot_sample_positions(void);
+int kernel_supports_ring_buffer_packet_sequence_number(void);
+int init_kernel_tracer(void);
+void cleanup_kernel_tracer(void);
+bool kernel_tracer_is_initialized(void);
+
+enum lttng_error_code kernel_create_channel_subdirectories(
+ const struct ltt_kernel_session *ksess);