mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
66 lines
1.8 KiB
C++
66 lines
1.8 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/common.h"
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#include "td/utils/port/thread_local.h"
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#include <array>
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#include <atomic>
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namespace td {
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template <class T>
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class ThreadLocalStorage {
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public:
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T &get() {
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return thread_local_node().value;
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}
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template <class F>
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void for_each(F &&f) {
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int32 n = max_thread_id_.load();
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for (int32 i = 0; i < n; i++) {
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f(nodes_[i].value);
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}
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}
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template <class F>
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void for_each(F &&f) const {
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int32 n = max_thread_id_.load();
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for (int32 i = 0; i < n; i++) {
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f(nodes_[i].value);
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}
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}
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private:
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struct Node {
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T value{};
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char padding[TD_CONCURRENCY_PAD];
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};
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static constexpr int32 MAX_THREAD_ID = 128;
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std::atomic<int32> max_thread_id_{MAX_THREAD_ID};
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std::array<Node, MAX_THREAD_ID> nodes_;
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Node &thread_local_node() {
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auto thread_id = get_thread_id();
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CHECK(0 <= thread_id && static_cast<size_t>(thread_id) < nodes_.size());
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return nodes_[thread_id];
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}
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};
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} // namespace td
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