What are thread pools in C++?

What are thread pools in C++?

Thread pools in C++ are a design pattern that manages a collection of worker threads for executing tasks concurrently.

Why should I use thread pools instead of creating new threads for each task?

Using thread pools improves performance by reusing existing threads, reducing the overhead of thread creation and destruction.

How do I implement a simple thread pool in C++?

You can implement a thread pool using a queue to hold tasks and a fixed number of threads that continuously fetch and execute tasks.

Can you show me a code example of a thread pool?

Sure! Here's a simple example:

#include <iostream>
#include <thread>
#include <vector>
#include <queue>
#include <functional>
#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 is just a starting point!