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Improve scylla read

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This commit is contained in:
Dominik Werder
2023-02-27 16:02:41 +01:00
parent 16719b384c
commit 9c1522f9bb
5 changed files with 147 additions and 77 deletions
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nodenet/src/conn.rs
+7 -3
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@@ -119,6 +119,7 @@ async fn make_channel_events_stream(
let stream = stream
.map({
let agg_kind = evq.agg_kind_value();
let mut pulse_last = None;
move |item| match item {
Ok(item) => {
let x = if let AggKind::PulseIdDiff = agg_kind {
@@ -126,11 +127,14 @@ async fn make_channel_events_stream(
ChannelEvents::Events(item) => {
let (tss, pulses) = items_0::EventsNonObj::into_tss_pulses(item);
let mut item = items_2::eventsdim0::EventsDim0::empty();
let mut pulse_last = pulses.front().map_or(0, |&x| x);
for (ts, pulse) in tss.into_iter().zip(pulses) {
let value = pulse as i64 - pulse_last as i64;
let value = if let Some(last) = pulse_last {
pulse as i64 - last as i64
} else {
0
};
item.push(ts, pulse, value);
pulse_last = pulse;
pulse_last = Some(pulse);
}
ChannelEvents::Events(Box::new(item))
}