41 lines
883 B
C++
41 lines
883 B
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/utils/common.h"
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#include <atomic>
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#include <memory>
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namespace td {
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class NetQueryCounter {
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public:
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using Counter = std::atomic<uint64>;
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NetQueryCounter() = default;
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explicit NetQueryCounter(Counter *counter) : ptr_(counter) {
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CHECK(counter != nullptr);
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counter->fetch_add(1, std::memory_order_relaxed);
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}
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explicit operator bool() const {
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return static_cast<bool>(ptr_);
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}
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private:
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struct Deleter {
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void operator()(Counter *ptr) {
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ptr->fetch_sub(1, std::memory_order_relaxed);
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}
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};
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std::unique_ptr<Counter, Deleter> ptr_;
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};
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} // namespace td
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