Thread Pool

C++14 thread pool implementation.

Usage

• thread_pool(std::size_t thread_count) (Constructor) : Number of worker threads to instantiate.
• push(Func &&fn, Args &&...args) : Push a new task into the queue.
• clear() : Remove all pending tasks from the queue.
• join() : Wait all worker threads to finish. This function is called within the destructor.
• thread_count() const : Get the number of worker threads.
• active_count() const : Get the number of active worker threads (ie. the number of threads which have a task assigned).

Example

// Create a thread pool with 4 worker threads
thread_pool pool{ 4 };

// Add a new task into the queue
auto future{ pool.push([](double n, double p) { return std::pow(n, p); }, 2, 12) };

// Get the result from the future
std::cout << future.get() << std::endl;