Expose new LocalCluster interface and use in example

examples/HelloWorldThreaded.cpp

@@ -1,40 +1,24 @@
 #include "App.h"
-#include <thread>
-#include <algorithm>
-#include <mutex>
-
-/* Note that SSL is disabled unless you build with WITH_OPENSSL=1 */
-const int SSL = 1;
-std::mutex stdoutMutex;
+#include "LocalCluster.h"
 
 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::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) {
-		stdoutMutex.lock();
-                if (listen_socket) {
-                    /* 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;
-                }
-		stdoutMutex.unlock();
-            }).run();
-
+    /* Note that SSL is disabled unless you build with WITH_OPENSSL=1 */
+    uWS::LocalCluster({
+        .key_file_name = "misc/key.pem",
+        .cert_file_name = "misc/cert.pem",
+        .passphrase = "1234"
+    },
+    [](uWS::SSLApp &app) {
+        /* Here this App instance is defined */
+        app.get("/*", [](auto *res, auto * /*req*/) {
+            res->end("Hello world!");
+        }).listen(3000, [](auto *listen_socket) {
+            if (listen_socket) {
+                /* 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(true, (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;
+            }
         });
     });
-
-    std::for_each(threads.begin(), threads.end(), [](std::thread *t) {
-        t->join();
-    });
 }