Crafter.Thread/interfaces/Crafter.Thread-ThreadPool.cppm

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/*
Crafter®.Thread
Copyright (C) 2025 Catcrafts®
Catcrafts.net
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3.0 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
export module Crafter.Thread:ThreadPool;
import std;
namespace Thread {
struct ThreadStorage {
std::vector<std::function<void(void)>> tasks;
std::vector<std::function<void(void)>> buffer;
std::condition_variable cv;
std::mutex mutex;
std::atomic<unsigned int> taskCount;
std::thread thread;
};
export class ThreadPool {
public:
static inline std::atomic<bool> stopped;
static void Start(int maxThreads = -1);
static void Stop();
static void Enqueue(std::function<void(void)> task);
static void Enqueue(std::vector<std::function<void(void)>> tasks);
static void JoinPool();
static inline unsigned int threadCount;
static inline std::atomic<unsigned int> activeThreads;
private:
static inline std::unordered_map<std::thread::id, ThreadStorage*> threadIdMap;
static inline ThreadStorage* threadStorage;
static void WaitAndExecuteTask(ThreadStorage* threadStorage);
};
}