mirror of
https://github.com/danog/ton.git
synced 2024-12-02 09:28:02 +01:00
112 lines
3.1 KiB
C++
112 lines
3.1 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/logging.h"
|
|
|
|
#include <utility>
|
|
|
|
namespace td {
|
|
|
|
// Process states in order defined by their Id
|
|
template <class DataT>
|
|
class OrderedEventsProcessor {
|
|
public:
|
|
using SeqNo = uint64;
|
|
|
|
OrderedEventsProcessor() = default;
|
|
explicit OrderedEventsProcessor(SeqNo offset) : offset_(offset), begin_(offset_), end_(offset_) {
|
|
}
|
|
|
|
template <class FunctionT>
|
|
void clear(FunctionT &&function) {
|
|
for (auto &it : data_array_) {
|
|
if (it.second) {
|
|
function(std::move(it.first));
|
|
}
|
|
}
|
|
*this = OrderedEventsProcessor();
|
|
}
|
|
void clear() {
|
|
*this = OrderedEventsProcessor();
|
|
}
|
|
template <class FromDataT, class FunctionT>
|
|
void add(SeqNo seq_no, FromDataT &&data, FunctionT &&function) {
|
|
LOG_CHECK(seq_no >= begin_) << seq_no << ">=" << begin_; // or ignore?
|
|
|
|
if (seq_no == begin_) { // run now
|
|
begin_++;
|
|
function(seq_no, std::forward<FromDataT>(data));
|
|
|
|
while (begin_ < end_) {
|
|
auto &data_flag = data_array_[static_cast<size_t>(begin_ - offset_)];
|
|
if (!data_flag.second) {
|
|
break;
|
|
}
|
|
function(begin_, std::move(data_flag.first));
|
|
data_flag.second = false;
|
|
begin_++;
|
|
}
|
|
if (begin_ > end_) {
|
|
end_ = begin_;
|
|
}
|
|
if (begin_ == end_) {
|
|
offset_ = begin_;
|
|
}
|
|
|
|
// try_compactify
|
|
auto begin_pos = static_cast<size_t>(begin_ - offset_);
|
|
if (begin_pos > 5 && begin_pos * 2 > data_array_.size()) {
|
|
data_array_.erase(data_array_.begin(), data_array_.begin() + begin_pos);
|
|
offset_ = begin_;
|
|
}
|
|
} else {
|
|
auto pos = static_cast<size_t>(seq_no - offset_);
|
|
auto need_size = pos + 1;
|
|
if (data_array_.size() < need_size) {
|
|
data_array_.resize(need_size);
|
|
}
|
|
data_array_[pos].first = std::forward<FromDataT>(data);
|
|
data_array_[pos].second = true;
|
|
if (end_ < seq_no + 1) {
|
|
end_ = seq_no + 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool has_events() const {
|
|
return begin_ != end_;
|
|
}
|
|
SeqNo max_unfinished_seq_no() {
|
|
return end_ - 1;
|
|
}
|
|
SeqNo max_finished_seq_no() {
|
|
return begin_ - 1;
|
|
}
|
|
|
|
private:
|
|
SeqNo offset_ = 1;
|
|
SeqNo begin_ = 1;
|
|
SeqNo end_ = 1;
|
|
std::vector<std::pair<DataT, bool>> data_array_;
|
|
};
|
|
|
|
} // namespace td
|