Update ServerName example a bit

examples/ServerName.cpp

@@ -2,6 +2,8 @@
 
 /* Note that uWS::SSLApp({options}) is the same as uWS::App() when compiled without SSL support */
 
+struct us_listen_socket_t *listenSocket;
+
 int main() {
 	/* Overly simple hello world app (SNI) */
 	uWS::SSLApp app = uWS::SSLApp({
@@ -21,13 +23,25 @@ int main() {
 
 	}).get("/*", [](auto *res, auto *req) {
 	    res->end("Hello world!");
-	}).listen(3000, [](auto *token) {
-	    if (token) {
-		std::cout << "Listening on port " << 3000 << std::endl;
-	    }
+	}).get("/exit", [](auto *res, auto *req) {
+             res->end("Shutting down!");
+            /* We use this to check graceful closedown */
+            us_listen_socket_close(1, listenSocket);
+	}).listen(3000, [](auto *listenSocket) {
+	    if (listenSocket) {
+			std::cout << "Listening on port " << 3000 << std::endl;
+			::listenSocket = listenSocket;
+	    } else {
+			std::cout << "Failed to listen on port 3000" << std::endl;
+		}
+	});
+
+	/* Let's add a wildcard SNI to begin with */
+	app.addServerName("*.google.*", {
+		.key_file_name = "../misc/key.pem",
+		.cert_file_name = "../misc/cert.pem",
+		.passphrase = "1234"
 	});
 
 	app.run();
-
-	std::cout << "Failed to listen on port 3000" << std::endl;
 }