How can I implement a thread pool in C++ with proper synchronization?

How can I implement a thread pool in C++ with proper synchronization?

To implement a thread pool in C++, you can use a combination of std::thread, std::mutex, and std::condition_variable for synchronization.

Can you provide a simple code example?

Sure! Here's a basic example:

#include <iostream>
#include <thread>
#include <vector>
#include <queue>
#include <mutex>
#include <condition_variable>

class ThreadPool {
public:
    ThreadPool(size_t threads);
    template<class F>
    void enqueue(F&& f);
    ~ThreadPool();
private:
    std::vector<std::thread> workers;
    std::queue<std::function<void()>> tasks;
    std::mutex queue_mutex;
    std::condition_variable condition;
    bool stop;
};

// Implementation details...

This sets up a thread pool with a queue for tasks.

What about handling task completion and errors?

You can use futures to handle task completion and exceptions. When you enqueue a task, return a future that can be used to check the result or catch exceptions.

Are there any libraries that can simplify this process?

Yes, libraries like Boost.Asio or Intel TBB provide higher-level abstractions for thread pools and synchronization.