API Fix: bt_ctf_iter_read_event_flags
[babeltrace.git] / formats / ctf / iterator.c
index ec74e59029381e73acc5cbf97a7c43ae4889fedf..0ac041910f7aedf9d967600efd24e718318b6891 100644 (file)
@@ -94,11 +94,13 @@ struct bt_iter *bt_ctf_get_iter(struct bt_ctf_iter *iter)
        return &iter->parent;
 }
 
-struct bt_ctf_event *bt_ctf_iter_read_event(struct bt_ctf_iter *iter)
+struct bt_ctf_event *bt_ctf_iter_read_event_flags(struct bt_ctf_iter *iter,
+               int *flags)
 {
        struct ctf_file_stream *file_stream;
        struct bt_ctf_event *ret;
        struct ctf_stream_definition *stream;
+       struct packet_index *packet_index;
 
        /*
         * We do not want to fail for any other reason than end of
@@ -116,6 +118,24 @@ struct bt_ctf_event *bt_ctf_iter_read_event(struct bt_ctf_iter *iter)
        ret->parent = g_ptr_array_index(stream->events_by_id,
                        stream->event_id);
 
+       if (flags)
+               *flags = 0;
+       if (!file_stream->pos.packet_cycles_index)
+               packet_index = NULL;
+       else
+               packet_index = &g_array_index(file_stream->pos.packet_cycles_index,
+                               struct packet_index, file_stream->pos.cur_index);
+       iter->events_lost = 0;
+       if (packet_index && packet_index->events_discarded >
+                       file_stream->pos.last_events_discarded) {
+               if (flags)
+                       *flags |= BT_ITER_FLAG_LOST_EVENTS;
+               iter->events_lost += packet_index->events_discarded -
+                       file_stream->pos.last_events_discarded;
+               file_stream->pos.last_events_discarded =
+                       packet_index->events_discarded;
+       }
+
        if (ret->parent->stream->stream_id > iter->callbacks->len)
                goto end;
 
@@ -126,3 +146,16 @@ end:
 stop:
        return NULL;
 }
+
+struct bt_ctf_event *bt_ctf_iter_read_event(struct bt_ctf_iter *iter)
+{
+       return bt_ctf_iter_read_event_flags(iter, NULL);
+}
+
+uint64_t bt_ctf_get_lost_events_count(struct bt_ctf_iter *iter)
+{
+       if (!iter)
+               return -1ULL;
+
+       return iter->events_lost;
+}
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