integrating the existing state of TON Storage / TON Payments / CPS Fift development branches

storage/LoadSpeed.cpp

@@ -0,0 +1,33 @@
+#include "LoadSpeed.h"
+
+#include "td/utils/format.h"
+
+namespace ton {
+void LoadSpeed::add(td::size_t size, td::Timestamp now) {
+  total_size_ += size;
+  events_.push(Event{size, now});
+  update(now);
+}
+double LoadSpeed::speed(td::Timestamp now) const {
+  update(now);
+  return total_size_ / duration();
+}
+
+td::StringBuilder &operator<<(td::StringBuilder &sb, const LoadSpeed &speed) {
+  return sb << td::format::as_size(static_cast<td::uint64>(speed.speed())) << "/s";
+}
+
+void LoadSpeed::update(td::Timestamp now) const {
+  while (duration() > 60) {
+    total_size_ -= events_.front().size;
+    events_.pop();
+  }
+}
+double LoadSpeed::duration() const {
+  double res = 5;
+  if (events_.size() > 1) {
+    res = std::max(res, events_.back().at.at() - events_.front().at.at());
+  }
+  return res;
+}
+}  // namespace ton