How can I implement a thread pool in C++?

How can I implement a thread pool in C++?

To implement a thread pool in C++, you can use the C++11 threading library. Start by creating a class that manages a collection of worker threads.

What are the key components I need to include in the thread pool?

Key components include a task queue, worker threads, and synchronization mechanisms like mutexes and condition variables.

Can you provide a simple code example?

Sure! Here's a basic outline:

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

class ThreadPool {
public:
    ThreadPool(size_t numThreads);
    void enqueue(std::function<void()> task);
    ~ThreadPool();
private:
    std::vector<std::thread> workers;
    std::queue<std::function<void()>> tasks;
    std::mutex queueMutex;
    std::condition_variable condition;
    bool stop;
};

This is just the beginning; you would need to implement the constructor and other methods.

How do I handle task completion and thread termination?

You can use a condition variable to notify threads when tasks are available and set a flag to stop the threads gracefully when the pool is destroyed.