peri4
38d09e272c
1. subscribe now similar to HTTP server, with lambda 2. subscribe topic syntax support all HTTP features as path arguments and wildcards 3. event received() changed to receivedUnhandled() for unhandled messages (should never be called in proper work) 4. internal logic got more complicated, several endpoints may be serviced by single MQTT topic, so nested Map used
135 lines
3.7 KiB
C++
135 lines
3.7 KiB
C++
//! \~\file pimqttclient.h
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//! \~\ingroup MQTT
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//! \~\brief
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//! \~english
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//! \~russian
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/*
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PIP - Platform Independent Primitives
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MQTT Client
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Ivan Pelipenko peri4ko@yandex.ru
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef pimqttclient_h
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#define pimqttclient_h
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#include "piliterals_time.h"
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#include "pimqtttypes.h"
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#include "pip_mqtt_client_export.h"
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#include "pithreadpoolworker.h"
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namespace PIMQTT {
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class PIP_MQTT_CLIENT_EXPORT Client: public PIObject {
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PIOBJECT(PIMQTT::Client)
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public:
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Client();
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virtual ~Client();
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//! \~english Request handler used by registered routes and fallback processing.
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//! \~russian Обработчик запроса, используемый зарегистрированными маршрутами и fallback-обработкой.
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using MessageFunction = std::function<void(const PIMQTT::MessageConst &)>;
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void setConnectTimeout(PISystemTime time) { connect_timeout = time; }
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void connect(const PIString & address, const PIString & client, const PIString & username = {}, const PIString & password = {});
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void disconnect();
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void subscribe(const PIString & topic, MessageFunction functor, QoS qos = QoS::Level1);
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template<typename T>
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void
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subscribe(const PIString & topic, T * o, PIMQTT::MessageMutable (T::*function)(const PIMQTT::MessageConst &), QoS qos = QoS::Level1) {
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subscribe(topic, [o, function](const PIMQTT::MessageConst & m) { return (o->*function)(m); }, qos);
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}
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void unsubscribe(const PIString & topic);
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void unsubscribeAll();
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void publish(const PIString & topic, const PIByteArray & msg, QoS qos = QoS::Level0);
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void publish(const MessageConst & msg);
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bool isConnecting() const { return m_status == Connecting; }
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bool isConnected() const { return m_status == Connected; }
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EVENT0(connected);
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EVENT1(disconnected, PIMQTT::Error, code);
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EVENT1(receivedUnhandled, PIMQTT::MessageConst, message);
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struct Endpoint;
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private:
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NO_COPY_CLASS(Client)
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PRIVATE_DECLARATION(PIP_MQTT_CLIENT_EXPORT)
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enum Status {
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Idle,
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Connecting,
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Connected,
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};
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struct ConnectInfo {
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PIString address;
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PIString clientID;
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PIString username;
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PIString password;
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};
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struct Subscribe {
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PIString topic;
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MessageFunction functor;
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QoS qos;
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};
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void mqtt_connectionLost();
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void mqtt_deliveryComplete(int token);
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void mqtt_messageArrived(MessageMutable & msg);
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PIString registerSubscribe(const Subscribe & sub);
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PIString unregisterSubscribe(const PIString & mqtt_topic);
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void unregisterAll();
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void connectInternal(const ConnectInfo & ci);
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void disconnectInternal();
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void publishInternal(const MessageConst & m);
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void subscribeInternal(const Subscribe & sub);
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void unsubscribeInternal(const PIString & mqtt_topic);
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void destroy();
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void changeStatus(Status s);
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void run();
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// from HTTP format
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static PIString convertTopic2MQTT(const PIString & topic);
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// from MQTT format
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static PIString convertTopic2HTTP(const PIString & topic);
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std::atomic_int m_status = {Idle};
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std::atomic_bool is_destoying = {false};
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PISystemTime connect_timeout = 10_s;
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PIThreadPoolWorker * worker = nullptr;
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};
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}; // namespace PIMQTT
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#endif
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