Implement async dispatcher #221
Eduardo Bart
11 years ago
parent
c452e74e0c
commit
0be7bd5360
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/*
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* Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "asyncdispatcher.h"
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AsyncDispatcher g_asyncDispatcher;
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void AsyncDispatcher::init()
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{
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spawn_thread();
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}
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void AsyncDispatcher::terminate()
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{
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stop();
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m_tasks.clear();
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}
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void AsyncDispatcher::spawn_thread()
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{
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m_running = true;
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m_threads.push_back(std::thread(std::bind(&AsyncDispatcher::exec_loop, this)));
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}
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void AsyncDispatcher::stop()
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{
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m_mutex.lock();
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m_running = false;
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m_condition.notify_all();
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m_mutex.unlock();
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for(std::thread& thread : m_threads)
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thread.join();
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m_threads.clear();
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};
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void AsyncDispatcher::exec_loop() {
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std::unique_lock<std::mutex> lock(m_mutex);
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while(true) {
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while(m_tasks.size() == 0 && m_running)
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m_condition.wait(lock);
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if(!m_running)
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return;
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std::function<void()> task = m_tasks.front();
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m_tasks.pop_front();
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lock.unlock();
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task();
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lock.lock();
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}
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}
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@ -0,0 +1,59 @@
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/*
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* Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef ASYNCDISPATCHER_H
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#define ASYNCDISPATCHER_H
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#include "declarations.h"
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#include <framework/stdext/thread.h>
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class AsyncDispatcher {
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public:
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void init();
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void terminate();
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void spawn_thread();
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void stop();
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template<class F>
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std::future<typename std::result_of<F()>::type> schedule(const F& task) {
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std::lock_guard<std::mutex> lock(m_mutex);
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auto prom = std::make_shared<std::promise<typename std::result_of<F()>::type>>();
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m_tasks.push_back([=]() { prom->set_value(task()); });
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m_condition.notify_all();
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return prom->get_future();
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}
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protected:
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void exec_loop();
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private:
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std::list<std::function<void()>> m_tasks;
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std::mutex m_mutex;
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std::list<std::thread> m_threads;
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std::condition_variable m_condition;
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stdext::boolean<false> m_running;
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};
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extern AsyncDispatcher g_asyncDispatcher;
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#endif
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