tdlight/tdutils/td/utils/ExitGuard.h
2021-01-01 15:57:46 +03:00

31 lines
713 B
C++

//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include <atomic>
namespace td {
class ExitGuard {
public:
ExitGuard() = default;
ExitGuard(ExitGuard &&) = delete;
ExitGuard &operator=(ExitGuard &&) = delete;
ExitGuard(const ExitGuard &) = delete;
ExitGuard &operator=(const ExitGuard &) = delete;
~ExitGuard();
static bool is_exited() {
return is_exited_.load(std::memory_order_relaxed);
}
private:
static std::atomic<bool> is_exited_;
};
} // namespace td