70 lines
1.3 KiB
C++
70 lines
1.3 KiB
C++
//SPDX-FileCopyrightText: 2023 Yury Gubich <blue@macaw.me>
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//SPDX-License-Identifier: GPL-3.0-or-later
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#include "manager.h"
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TM::Manager::Manager ():
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terminating(false),
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threads(),
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queue(),
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mtx(),
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cond()
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{}
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TM::Manager::~Manager () {
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std::unique_lock lock(mtx);
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if (threads.empty())
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return;
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lock.unlock();
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stop();
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}
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void TM::Manager::start () {
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std::lock_guard lock(mtx);
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std::size_t amount = std::thread::hardware_concurrency();
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for (std::size_t i = 0; i < amount; ++i)
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threads.emplace_back(std::thread(&Manager::loop, this));
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}
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void TM::Manager::stop () {
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std::unique_lock lock(mtx);
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terminating = true;
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lock.unlock();
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cond.notify_all();
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for (std::thread& thread : threads)
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thread.join();
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lock.lock();
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threads.clear();
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terminating = false;
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}
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void TM::Manager::loop () {
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while (true) {
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std::unique_lock lock(mtx);
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while (!terminating && queue.empty())
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cond.wait(lock);
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if (terminating)
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return;
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std::unique_ptr<Job> job = std::move(queue.front());
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queue.pop();
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lock.unlock();
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job->execute();
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}
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}
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void TM::Manager::schedule (std::unique_ptr<Job> job) {
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std::unique_lock lock(mtx);
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queue.emplace(std::move(job));
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lock.unlock();
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cond.notify_one();
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}
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