Initial code check-inicefish_8.99.5icefish_8.99.4icefish_8.99.3icefish_8.99.2icefish_8.99.1icefish/8.99.5icefish/8.99.4icefish/8.99.3icefish/8.99.2icefish/8.99.1halibut_8.0.6halibut_8.0.5halibut_8.0.4halibut_8.0.3halibut_8.0.2halibut_8.0.1halibut_8.0.0halibut_7.99.3halibut_7.99.2halibut_7.99.1halibut/8.0.6halibut/8.0.5halibut/8.0.4halibut/8.0.3halibut/8.0.2halibut/8.0.1halibut/8.0.0halibut/7.99.3halibut/7.99.2halibut/7.99.18.99.58.99.48.99.38.99.28.99.18.0.68.0.58.0.48.0.38.0.28.0.18.0.07.99.37.99.27.99.1halibut

A simple telematics demo application for AGL.  It reads vehicle and
engine speed from the CAN low-level binding and publishes them via
MQTT.

Change-Id: Ib85904e87919053cad1215b3f53cee81db25c94a
Signed-off-by: Scott Murray <scott.murray@konsulko.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/app/mqttclient.cpp b/app/mqttclient.cpp
new file mode 100644
index 0000000..f072013
--- /dev/null
+++ b/app/mqttclient.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2019 Konsulko Group
+ *
+ * Licensed 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 "mqttclient.h"
+#include <iostream>
+
+#undef DEBUG
+
+#ifdef DEBUG
+static void on_connect(struct mosquitto *mosq, void *obj, int rc)
+{
+	std::cerr << " MQTT Connected, rc = " << rc << std::endl;
+}
+
+static void on_disconnect(struct mosquitto *mosq, void *obj, int rc)
+{
+	std::cerr << " MQTT Disconnected, rc = " << rc << std::endl;
+}
+#endif
+
+MqttClient::MqttClient(const std::string &id, const std::string &host, const int port, const int keepalive, const std::string &username, const std::string &password)
+{
+	mosquitto_lib_init();
+	m_mosq = mosquitto_new(id.c_str(), true, NULL);
+
+#ifdef DEBUG
+	mosquitto_connect_callback_set(m_mosq, on_connect);
+	mosquitto_disconnect_callback_set(m_mosq, on_disconnect);
+#endif
+
+	if(username.length())
+		mosquitto_username_pw_set(m_mosq, username.c_str(), password.c_str());
+
+	if(mosquitto_connect_async(m_mosq, host.c_str(), port, keepalive)) {
+		std::cerr << __FUNCTION__ << ": Unable to connect to " << host << std::endl;
+	}
+
+	int loop = mosquitto_loop_start(m_mosq);
+	if(loop != MOSQ_ERR_SUCCESS){
+		std::cerr << __FUNCTION__ << ": Unable to start loop, error = " << loop << std::endl;
+	}
+}
+
+MqttClient::~MqttClient(void)
+{
+	mosquitto_disconnect(m_mosq);
+	mosquitto_loop_stop(m_mosq, true);
+	mosquitto_destroy(m_mosq);
+	mosquitto_lib_cleanup();
+}
+
+int MqttClient::publish(const std::string &topic, const std::string &msg, const int qos, const bool retain)
+{
+	return mosquitto_publish(m_mosq, NULL, topic.c_str(), msg.length(), msg.c_str(), qos, retain);
+}