/****************************************************************************
*
* Copyright (c) 2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file px4_nodehandle.h
*
* PX4 Middleware Wrapper Node Handle
*/
#pragma once
#if defined(__PX4_ROS)
/* includes when building for ros */
#include "ros/ros.h"
#else
/* includes when building for NuttX */
#include <uORB/Publication.hpp>
#include <containers/List.hpp>
#endif
namespace px4
{
/**
* Untemplated publisher base class
* */
class PublisherBase
{
public:
PublisherBase() {};
~PublisherBase() {};
};
#if defined(__PX4_ROS)
class Publisher :
public PublisherBase
{
public:
/**
* Construct Publisher by providing a ros::Publisher
* @param ros_pub the ros publisher which will be used to perform the publications
*/
Publisher(ros::Publisher ros_pub) :
PublisherBase(),
_ros_pub(ros_pub)
{}
~Publisher() {};
/** Publishes msg
* @param msg the message which is published to the topic
*/
template<typename M>
int publish(const M &msg) { _ros_pub.publish(msg); return 0; }
private:
ros::Publisher _ros_pub; /**< Handle to the ros publisher */
};
#else
class Publisher :
public uORB::PublicationNode,
public PublisherBase
{
public:
/**
* Construct Publisher by providing orb meta data
* @param meta orb metadata for the topic which is used
* @param list publisher is added to this list
*/
Publisher(const struct orb_metadata *meta,
List<uORB::PublicationNode *> *list) :
uORB::PublicationNode(meta, list),
PublisherBase()
{}
~Publisher() {};
/** Publishes msg
* @param msg the message which is published to the topic
*/
template<typename M>
int publish(const M &msg)
{
uORB::PublicationBase::update((void *)&msg);
return 0;
}
/**
* Empty callback for list traversal
*/
void update() {} ;
};
#endif
}
