+LTTNG_EXPORT extern int lttng_data_pending(const char *session_name);
+
+/*
+ * Gets the status of the kernel tracer.
+ *
+ * Sets the value of the argument, which must not be null.
+ */
+LTTNG_EXPORT extern enum lttng_error_code
+lttng_get_kernel_tracer_status(enum lttng_kernel_tracer_status *status);