[lttng-dev] Missing discarded events message in live-reading mode

[liguang.lee6@gmail.com (liguang li)]

Hi,

Babeltrace in live mode is not displaying the discarded events message. But
on CTF traces the discarded events message will be printed on stderr.

Why? Is there any restriction?

I added the following patch into the ctf_live_packet_seek() function, and
found
it works well. Is there any side effect?

diff --git a/formats/lttng-live/lttng-live-comm.c
b/formats/lttng-live/lttng-live-comm.c
index a1c95bb..dc14bf5 100644
--- a/formats/lttng-live/lttng-live-comm.c
+++ b/formats/lttng-live/lttng-live-comm.c
@@ -1297,6 +1297,11 @@ retry:
                ctf_update_current_packet_index(&file_stream->parent,
                                prev_index, cur_index);

+               if
((&file_stream->parent)->stream_class->trace->parent.collection) {
+                       ctf_print_discarded_lost(stderr,
&file_stream->parent);
+               }
+
+
                file_stream->parent.cycles_timestamp =
                                cur_index->ts_cycles.timestamp_begin;
                file_stream->parent.real_timestamp =
...


Regards,
Liguang
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