X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Finclude%2Fltt%2Fevent.h;h=35e78778e1333f01329af9105e84549980f940a9;hb=80da81adfa88158bd3d4c26f89f96f8b58c77b4f;hp=96c71ce7b49865cbd1d1599eb4c7cddce1fc2f94;hpb=01a5c7e14a0f0fe5ad4a1256376252bcb53808a7;p=lttv.git

diff --git a/ltt/branches/poly/include/ltt/event.h b/ltt/branches/poly/include/ltt/event.h
index 96c71ce7..35e78778 100644
--- a/ltt/branches/poly/include/ltt/event.h
+++ b/ltt/branches/poly/include/ltt/event.h
@@ -34,6 +34,22 @@ LttTime ltt_event_time(LttEvent *e);
 LttCycleCount ltt_event_cycle_count(LttEvent *e);
 
 
+/* Obtain the position of the event within the tracefile. This
+   is used to seek back to this position later or to seek to another
+   position, computed relative to this position. The event position
+   structure is opaque and contains several fields, only two
+   of which are user accessible: block number and event index
+   within the block. */
+
+void ltt_event_position(LttEvent *e, LttEventPosition *ep);
+
+void ltt_event_position_get(LttEventPosition *ep,
+    unsigned *block_number, unsigned *index_in_block);
+
+void ltt_event_position_set(LttEventPosition *ep,
+    unsigned block_number, unsigned index_in_block);
+
+
 /* CPU id of the event */
 
 unsigned ltt_event_cpu_id(LttEvent *e);