83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
// This file Copyright 2022 Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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#pragma once
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#include <chrono>
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#include <functional>
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#include <memory>
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#include <utility>
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namespace libtransmission
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{
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class Timer
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{
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public:
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Timer() = default;
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virtual ~Timer() = default;
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Timer(Timer&&) = delete;
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Timer(Timer const&) = delete;
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Timer& operator=(Timer&&) = delete;
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Timer& operator=(Timer const&) = delete;
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virtual void stop() = 0;
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virtual void setCallback(std::function<void()> callback) = 0;
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virtual void setRepeating(bool repeating = true) = 0;
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virtual void setInterval(std::chrono::milliseconds) = 0;
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virtual void start() = 0;
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[[nodiscard]] virtual std::chrono::milliseconds interval() const noexcept = 0;
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[[nodiscard]] virtual bool isRepeating() const noexcept = 0;
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void start(std::chrono::milliseconds msec)
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{
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setInterval(msec);
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start();
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}
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void startRepeating(std::chrono::milliseconds msec)
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{
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setRepeating();
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start(msec);
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}
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void startSingleShot(std::chrono::milliseconds msec)
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{
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setRepeating(false);
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start(msec);
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}
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using CStyleCallback = void (*)(void* user_data);
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void setCallback(CStyleCallback callback, void* user_data)
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{
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setCallback([user_data, callback]() { callback(user_data); });
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}
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};
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class TimerMaker
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{
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public:
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virtual ~TimerMaker() = default;
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[[nodiscard]] virtual std::unique_ptr<Timer> create() = 0;
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[[nodiscard]] std::unique_ptr<Timer> create(std::function<void()> callback)
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{
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auto timer = create();
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timer->setCallback(std::move(callback));
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return timer;
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}
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[[nodiscard]] std::unique_ptr<Timer> create(Timer::CStyleCallback callback, void* user_data)
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{
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auto timer = create();
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timer->setCallback(callback, user_data);
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return timer;
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}
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};
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} // namespace libtransmission
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