Multithreading on windows

[VolkerLieber]

I'm currently testing your multithreaded example with std::this_thread::sleep_for to simulate an expensive function and somehow only one thread is used. What am I doing wrong?

Sorry for the troubles.

int main() {
          /* Overly simple hello world app, using multiple threads */
          std::vector<std::thread*> threads(std::thread::hardware_concurrency());
          
          std::transform(threads.begin(), threads.end(), threads.begin(), [](std::thread*/*t*/) {
          return new std::thread([]() {
	          uWS::App().get("/*", [](auto* res, auto* /*req*/) {
		          std::cout << std::this_thread::get_id() << std::endl;
		          using namespace std::chrono_literals;
		          std::this_thread::sleep_for(5s);
		          res->end("Hello world!");
		          }).listen(3000, [](auto* listen_socket) {
			          if (listen_socket) {
				          std::cout << "Thread " << std::this_thread::get_id() << " listening on port 3000" << std::endl;
			          }
			          else {
				          std::cout << "Thread " << std::this_thread::get_id() << " failed to listen on port 3000" << std::endl;
			          }
			          }).run();
          
	          });
          });
          
          std::for_each(threads.begin(), threads.end(), [](std::thread* t) {
          t->join();
          });
}

Output:

Thread 19276 listening on port 3000
Thread 8208 listening on port 3000
Thread 22952 listening on port 3000
Thread 18328 listening on port 3000
Thread 9052 listening on port 3000
Thread 23104 listening on port 3000
Thread 18276 listening on port 3000
Thread 22516 listening on port 3000
Thread 20528 listening on port 3000
Thread 7736 listening on port 3000
Thread 20660 listening on port 3000
Thread 21676 listening on port 3000
18276
18276
18276
18276
18276
18276