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cabana: concurrently update chart series (#27230)

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This commit is contained in:
Dean Lee
2023-02-07 02:17:58 +08:00
committed by GitHub
parent 0374d4817d
commit 1ecda86e51
1 changed files with 27 additions and 9 deletions
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tools/cabana/chartswidget.cc
+27 -9
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@@ -529,20 +529,38 @@ void ChartView::updateSeries(const Signal *sig, const std::vector<Event *> *even
s.vals.reserve(settings.max_cached_minutes * 60 * 100); // [n]seconds * 100hz
s.last_value_mono_time = 0;
}
double route_start_time = can->routeStartTime();
struct Chunk {
std::vector<Event *>::const_iterator first, second;
QVector<QPointF> vals;
};
// split into one minitue chunks
QVector<Chunk> chunks;
Event begin_event(cereal::Event::Which::INIT_DATA, s.last_value_mono_time);
auto begin = std::upper_bound(events->begin(), events->end(), &begin_event, Event::lessThan());
for (auto it = begin; it != events->end(); ++it) {
if ((*it)->which == cereal::Event::Which::CAN) {
for (const auto &c : (*it)->event.getCan()) {
if (s.address == c.getAddress() && s.source == c.getSrc()) {
auto dat = c.getDat();
double value = get_raw_value((uint8_t *)dat.begin(), dat.size(), *s.sig);
double ts = ((*it)->mono_time / (double)1e9) - route_start_time; // seconds
s.vals.push_back({ts, value});
for (auto it = begin, second = begin; it != events->end(); it = second) {
second = std::lower_bound(it, events->end(), (*it)->mono_time + 1e9 * 60, [](auto &e, uint64_t ts) { return e->mono_time < ts; });
chunks.push_back({it, second});
}
QtConcurrent::blockingMap(chunks, [&](Chunk &chunk) {
chunk.vals.reserve(60 * 100); // 100 hz
double route_start_time = can->routeStartTime();
for (auto it = chunk.first; it != chunk.second; ++it) {
if ((*it)->which == cereal::Event::Which::CAN) {
for (const auto &c : (*it)->event.getCan()) {
if (s.address == c.getAddress() && s.source == c.getSrc()) {
auto dat = c.getDat();
double value = get_raw_value((uint8_t *)dat.begin(), dat.size(), *s.sig);
double ts = ((*it)->mono_time / (double)1e9) - route_start_time; // seconds
chunk.vals.push_back({ts, value});
}
}
}
}
});
for (auto &c : chunks) {
s.vals.append(c.vals);
}
if (events->size()) {
s.last_value_mono_time = events->back()->mono_time;