Variation of helloworld that does not use a broker, but listens for incoming connections itself. It establishes a connection to itself with a link over which a single message is sent. This demonstrates the ease with which a simple daemon an be built using the API.
/* * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * */ #include <proton/connection.hpp> #include <proton/default_container.hpp> #include <proton/messaging_handler.hpp> #include <proton/sender.hpp> #include <proton/tracker.hpp> #include <iostream> #include "fake_cpp11.hpp" class hello_world_direct : public proton::messaging_handler { private: std::string url; proton::listener listener; public: hello_world_direct(const std::string& u) : url(u) {} void on_container_start(proton::container &c) OVERRIDE { listener = c.listen(url); c.open_sender(url); } void on_sendable(proton::sender &s) OVERRIDE { proton::message m("Hello World!"); s.send(m); s.close(); } void on_message(proton::delivery &, proton::message &m) OVERRIDE { std::cout << m.body() << std::endl; } void on_tracker_accept(proton::tracker &t) OVERRIDE { t.connection().close(); } void on_connection_close(proton::connection&) OVERRIDE { listener.stop(); } }; int main(int argc, char **argv) { try { // Pick an "unusual" port since we are going to be talking to // ourselves, not a broker. std::string url = argc > 1 ? argv[1] : "127.0.0.1:8888/examples"; hello_world_direct hwd(url); proton::default_container(hwd).run(); return 0; } catch (const std::exception& e) { std::cerr << e.what() << std::endl; } return 1; }