Update threaded example

examples/HelloWorldThreaded.cpp

@@ -3,7 +3,9 @@
 #include <algorithm>
 #include <mutex>
 
-std::mutex m;
+/* Note that SSL is disabled unless you build with WITH_OPENSSL=1 */
+const int SSL = 1;
+std::mutex stdoutMutex;
 
 int main() {
     /* Overly simple hello world app, using multiple threads */
@@ -12,16 +14,21 @@ int main() {
     std::transform(threads.begin(), threads.end(), threads.begin(), [](std::thread */*t*/) {
         return new std::thread([]() {
 
-            uWS::App().get("/*", [](auto *res, auto * /*req*/) {
+            uWS::SSLApp({
+                .key_file_name = "../misc/key.pem",
+                .cert_file_name = "../misc/cert.pem",
+                .passphrase = "1234"
+            }).get("/*", [](auto *res, auto * /*req*/) {
                 res->end("Hello world!");
             }).listen(3000, [](auto *listen_socket) {
-		m.lock();
+		stdoutMutex.lock();
                 if (listen_socket) {
-                    std::cout << "Thread " << std::this_thread::get_id() << " listening on port " << 3000 << std::endl;
+                    /* Note that us_listen_socket_t is castable to us_socket_t */
+                    std::cout << "Thread " << std::this_thread::get_id() << " listening on port " << us_socket_local_port(SSL, (struct us_socket_t *) listen_socket) << std::endl;
                 } else {
                     std::cout << "Thread " << std::this_thread::get_id() << " failed to listen on port 3000" << std::endl;
                 }
-		m.unlock();
+		stdoutMutex.unlock();
             }).run();
 
         });