mirror of
https://github.com/danog/ton.git
synced 2024-12-11 16:49:37 +01:00
75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
/*
|
|
This file is part of TON Blockchain Library.
|
|
|
|
TON Blockchain Library is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
TON Blockchain Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
Copyright 2017-2019 Telegram Systems LLP
|
|
*/
|
|
#pragma once
|
|
|
|
#include "td/utils/common.h"
|
|
#include "td/utils/TimedStat.h"
|
|
|
|
namespace td {
|
|
|
|
class FloodControlFast {
|
|
public:
|
|
uint32 add_event(int32 now) {
|
|
for (auto &limit : limits_) {
|
|
limit.stat_.add_event(CounterStat::Event(), now);
|
|
if (limit.stat_.get_stat(now).count_ > limit.count_) {
|
|
wakeup_at_ = max(wakeup_at_, now + limit.duration_ * 2);
|
|
}
|
|
}
|
|
return wakeup_at_;
|
|
}
|
|
uint32 get_wakeup_at() {
|
|
return wakeup_at_;
|
|
}
|
|
|
|
void add_limit(uint32 duration, int32 count) {
|
|
limits_.push_back({TimedStat<CounterStat>(duration, 0), duration, count});
|
|
}
|
|
|
|
void clear_events() {
|
|
for (auto &limit : limits_) {
|
|
limit.stat_.clear_events();
|
|
}
|
|
wakeup_at_ = 0;
|
|
}
|
|
|
|
private:
|
|
class CounterStat {
|
|
public:
|
|
struct Event {};
|
|
int32 count_ = 0;
|
|
void on_event(Event e) {
|
|
count_++;
|
|
}
|
|
void clear() {
|
|
count_ = 0;
|
|
}
|
|
};
|
|
|
|
uint32 wakeup_at_ = 0;
|
|
struct Limit {
|
|
TimedStat<CounterStat> stat_;
|
|
uint32 duration_;
|
|
int32 count_;
|
|
};
|
|
std::vector<Limit> limits_;
|
|
};
|
|
|
|
} // namespace td
|