Pass listen port along to h3

src/Http3App.h

@@ -37,8 +37,7 @@ namespace uWS {
             if (!host.length()) {
                 return listen(port, std::move(handler));
             }
-            http3Context->listen();
-            //handler(httpContext ? httpContext->listen(host.c_str(), port, 0) : nullptr);
+            handler(http3Context ? (us_listen_socket_t *) http3Context->listen(port) : nullptr);
             return std::move(*this);
         }
 
@@ -47,22 +46,19 @@ namespace uWS {
             if (!host.length()) {
                 return listen(port, options, std::move(handler));
             }
-            http3Context->listen();
-            //handler(httpContext ? httpContext->listen(host.c_str(), port, options) : nullptr);
+            handler(http3Context ? (us_listen_socket_t *) http3Context->listen(port) : nullptr);
             return std::move(*this);
         }
 
         /* Port, callback */
         H3App &&listen(int port, MoveOnlyFunction<void(us_listen_socket_t *)> &&handler) {
-            http3Context->listen();
-            //handler(httpContext ? httpContext->listen(nullptr, port, 0) : nullptr);
+            handler(http3Context ? (us_listen_socket_t *) http3Context->listen(port) : nullptr);
             return std::move(*this);
         }
 
         /* Port, options, callback */
         H3App &&listen(int port, int options, MoveOnlyFunction<void(us_listen_socket_t *)> &&handler) {
-            http3Context->listen();
-            //handler(http3Context ? http3Context->listen(nullptr, port, options) : nullptr);
+            handler(http3Context ? (us_listen_socket_t *) http3Context->listen(port) : nullptr);
             return std::move(*this);
         }
 

src/Http3Context.h

@@ -107,9 +107,9 @@ namespace uWS {
             // call init here after setting the ext to Http3ContextData
         }
 
-        us_quic_listen_socket_t *listen() {
+        us_quic_listen_socket_t *listen(int port) {
             /* The listening socket is the actual UDP socket used */
-            us_quic_listen_socket_t *listen_socket = us_quic_socket_context_listen((us_quic_socket_context_t *) this, "::", 9004, sizeof(Http3ResponseData));
+            us_quic_listen_socket_t *listen_socket = us_quic_socket_context_listen((us_quic_socket_context_t *) this, "::", port, sizeof(Http3ResponseData));
 
             //printf("Listen socket is: %p\n", listen_socket);