callback.h

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/*******************************************************************************
 * Copyright (c) 2013-2019 Frank Pagliughi <fpagliughi@mindspring.com>
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * and Eclipse Distribution License v1.0 which accompany this distribution.
 *
 * The Eclipse Public License is available at
 *    http://www.eclipse.org/legal/epl-v20.html
 * and the Eclipse Distribution License is available at
 *   http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *    Frank Pagliughi - initial implementation and documentation
 *******************************************************************************/
 
#ifndef __mqtt_callback_h
#define __mqtt_callback_h
 
#include <memory>
#include <vector>
 
#include "MQTTAsync.h"
#include "mqtt/delivery_token.h"
#include "mqtt/types.h"
 
namespace mqtt {


class callback
{
public:
    using ptr_t = std::shared_ptr<callback>;
    using const_ptr_t = std::shared_ptr<const callback>;

    virtual ~callback() {}

    virtual void connected(const string& /*cause*/) {}
    virtual void connection_lost(const string& /*cause*/) {}
    virtual void message_arrived(const_message_ptr /*msg*/) {}
    virtual void delivery_complete(delivery_token_ptr /*tok*/) {}
};

using callback_ptr = callback::ptr_t;

using const_callback_ptr = callback::const_ptr_t;

}  // namespace mqtt
 
#endif  // __mqtt_callback_h