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77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
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// This file is originally from Trantor - TaskQueue.h
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// Copyright (c) 2016-2021, Tao An. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Tao An nor the names of other contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#pragma once
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#include <functional>
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#include <future>
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#include <string>
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/**
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* @brief This class is a pure virtual class that can be implemented as a
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* SerialTaskQueue or a ConcurrentTaskQueue.
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*
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*/
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class TaskQueue {
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protected:
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TaskQueue(const TaskQueue &) = delete;
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TaskQueue &operator=(const TaskQueue &) = delete;
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// some uncopyable classes maybe support move constructor....
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TaskQueue(TaskQueue &&) noexcept(true) = default;
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TaskQueue &operator=(TaskQueue &&) noexcept(true) = default;
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public:
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TaskQueue() {}
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virtual void runTaskInQueue(const std::function<void()> &task) = 0;
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virtual void runTaskInQueue(std::function<void()> &&task) = 0;
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virtual std::string getName() const {
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return "";
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};
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/**
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* @brief Run a task in the queue sychronously. This means that the task is
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* executed before the method returns.
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*
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* @param task
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*/
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void syncTaskInQueue(const std::function<void()> &task) {
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std::promise<int> prom;
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std::future<int> fut = prom.get_future();
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runTaskInQueue([&]() {
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task();
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prom.set_value(1);
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});
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fut.get();
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};
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virtual ~TaskQueue() {
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}
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};
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