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ton/tdutils/td/utils/port/detail/ThreadStl.h

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2019-09-07 12:03:22 +02:00
/*
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/port/config.h"
#ifdef TD_THREAD_STL
#include "td/utils/common.h"
#include "td/utils/invoke.h"
#include "td/utils/port/detail/ThreadIdGuard.h"
#include "td/utils/port/thread_local.h"
#include "td/utils/Slice.h"
#include <thread>
#include <tuple>
#include <type_traits>
#include <utility>
namespace td {
namespace detail {
class ThreadStl {
public:
ThreadStl() = default;
ThreadStl(const ThreadStl &other) = delete;
ThreadStl &operator=(const ThreadStl &other) = delete;
ThreadStl(ThreadStl &&) = default;
ThreadStl &operator=(ThreadStl &&) = default;
~ThreadStl() {
join();
}
template <class Function, class... Args>
explicit ThreadStl(Function &&f, Args &&... args) {
thread_ = std::thread([args = std::make_tuple(decay_copy(std::forward<Function>(f)),
decay_copy(std::forward<Args>(args))...)]() mutable {
ThreadIdGuard thread_id_guard;
invoke_tuple(std::move(args));
clear_thread_locals();
});
}
void join() {
if (thread_.joinable()) {
thread_.join();
}
}
void detach() {
if (thread_.joinable()) {
thread_.detach();
}
}
void set_name(CSlice name) {
}
static unsigned hardware_concurrency() {
return std::thread::hardware_concurrency();
}
using id = std::thread::id;
private:
std::thread thread_;
template <class T>
std::decay_t<T> decay_copy(T &&v) {
return std::forward<T>(v);
}
};
namespace this_thread_stl = std::this_thread;
} // namespace detail
} // namespace td
#endif