mirror of
https://github.com/ton-blockchain/ton
synced 2025-02-12 19:22:37 +00:00
92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2020 Telegram Systems LLP
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*/
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#pragma once
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#include "td/utils/int_types.h"
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#include "td/actor/actor.h"
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namespace ton {
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namespace validator {
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class StatsMerger : public td::actor::Actor {
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public:
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StatsMerger(td::Promise<std::vector<std::pair<std::string, std::string>>> promise)
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: promise_(std::move(promise)) {
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}
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void start_up() override {
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if (!pending_) {
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finish();
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}
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}
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void finish_subjob(td::Result<std::vector<std::pair<std::string, std::string>>> R, std::string prefix) {
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if (R.is_ok()) {
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auto v = R.move_as_ok();
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for (auto &el : v) {
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cur_.emplace_back(prefix + el.first, std::move(el.second));
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}
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}
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if (--pending_ == 0) {
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finish();
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}
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}
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void inc() {
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++pending_;
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}
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void dec() {
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if (--pending_ == 0) {
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finish();
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}
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}
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void finish() {
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promise_.set_value(std::move(cur_));
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stop();
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}
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struct InitGuard {
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td::actor::ActorId<StatsMerger> merger;
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~InitGuard() {
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td::actor::send_closure(merger, &StatsMerger::dec);
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}
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auto make_promise(std::string prefix) {
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merger.get_actor_unsafe().inc();
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return td::PromiseCreator::lambda(
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[merger = merger, prefix](td::Result<std::vector<std::pair<std::string, std::string>>> R) {
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td::actor::send_closure(merger, &StatsMerger::finish_subjob, std::move(R), std::move(prefix));
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});
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}
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};
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static InitGuard create(td::Promise<std::vector<std::pair<std::string, std::string>>> promise) {
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InitGuard ig;
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ig.merger = td::actor::create_actor<StatsMerger>("m", std::move(promise)).release();
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return ig;
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}
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private:
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std::vector<std::pair<std::string, std::string>> cur_;
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std::atomic<td::uint32> pending_{1};
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td::Promise<std::vector<std::pair<std::string, std::string>>> promise_;
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};
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} // namespace validator
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} // namespace ton
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