trace_uuid -> uuid

[lttng-modules.git] / ltt-events.h

diff --git a/ltt-events.h b/ltt-events.h
index 5b5dcb50ba14db062314dcfdb67d2aed85d0384e..a5eab5b8b7ca1fecf5ed681282be8a1b08aee123 100644 (file)
--- a/ltt-events.h
+++ b/ltt-events.h
@@ -147,6 +147,12 @@ struct ltt_channel_ops {
        void (*event_commit)(struct lib_ring_buffer_ctx *ctx);
        void (*event_write)(struct lib_ring_buffer_ctx *ctx, const void *src,
                            size_t len);
+       /*
+        * packet_avail_size returns the available size in the current
+        * packet. Note that the size returned is only a hint, since it
+        * may change due to concurrent writes.
+        */
+       size_t (*packet_avail_size)(struct channel *chan);
        wait_queue_head_t *(*get_reader_wait_queue)(struct ltt_channel *chan);
 };