48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
// Copyright 2022 Memgraph Ltd.
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//
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// Use of this software is governed by the Business Source License
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// included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
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// License, and you may not use this file except in compliance with the Business Source License.
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//
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// As of the Change Date specified in that file, in accordance with
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// the Business Source License, use of this software will be governed
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// by the Apache License, Version 2.0, included in the file
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// licenses/APL.txt.
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#pragma once
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#include <time.h>
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#include <memory>
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#include "utils/logging.hpp"
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namespace memgraph::utils::timer {
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#define SIGTIMER (SIGRTMAX - 2)
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class AsyncTimer {
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public:
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explicit AsyncTimer(double seconds);
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AsyncTimer();
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~AsyncTimer();
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AsyncTimer(AsyncTimer &&other) noexcept;
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// NOLINTNEXTLINE (hicpp-noexcept-move)
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AsyncTimer &operator=(AsyncTimer &&other);
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AsyncTimer(const AsyncTimer &) = delete;
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AsyncTimer &operator=(const AsyncTimer &) = delete;
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// Returns false if the object isn't associated with any timer.
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bool IsExpired() const noexcept;
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private:
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void ReleaseResources();
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// If the expiration_flag_ is nullptr, then the object is not associated with any timer, therefore no clean up
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// is necessary. Furthermore, the the POSIX API doesn't specify any value as "invalid" for timer_t, so the timer_id_
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// cannot be used to determine whether the object is associated with any timer or not.
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std::shared_ptr<std::atomic<bool>> expiration_flag_;
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uint64_t flag_id_;
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timer_t timer_id_;
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};
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} // namespace memgraph::utils
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