-extern int lttng_ustctl_get_mmap_read_offset(
- struct lttng_ust_shm_handle *handle,
- struct lttng_ust_lib_ring_buffer *buf, unsigned long *off);
-int lttng_ustconsumer_data_available(struct lttng_consumer_stream *stream);
+int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
+ unsigned long *off);
+void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream);
+int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream);