Files
PX4-Autopilot/src/modules/zenoh/subscribers/uorb_subscriber.hpp
T
Alexis Paques abc629c2bb zenoh: update zenoh-pico from 0.7.0 to 1.0.0 (#23462)
* Update Zenoh-pico from 0.7.0 to 1.0.0
* Update the zenoh-pico version to use PX4/dev/1.0.0-px4
* Remove the rostopic and rt/ prefix
 * Unlike zenoh-bridge-dds we were using, zenoh-bridge-ros2dds is now adding the rt/ prefix automagically.
2024-08-02 11:48:55 -04:00

111 lines
3.6 KiB
C++

/****************************************************************************
*
* Copyright (c) 2023 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 uorb_subscriber.hpp
*
* Defines generic, templatized uORB over Zenoh / ROS2
*
* @author Peter van der Perk <peter.vanderperk@nxp.com>
*/
#pragma once
#include "zenoh_subscriber.hpp"
#include <uORB/topics/input_rc.h>
#include <uORB/PublicationMulti.hpp>
#include <uORB/topics/actuator_outputs.h>
class uORB_Zenoh_Subscriber : public Zenoh_Subscriber
{
public:
uORB_Zenoh_Subscriber(const orb_metadata *meta, const uint32_t *ops) :
Zenoh_Subscriber(),
_uorb_meta{meta},
_cdr_ops(ops)
{
int instance = 0;
_uorb_pub_handle = orb_advertise_multi(_uorb_meta, nullptr, &instance);
};
~uORB_Zenoh_Subscriber() override = default;
// Update the uORB Subscription and broadcast a Zenoh ROS2 message
void data_handler(const z_loaned_sample_t *sample)
{
char data[_uorb_meta->o_size];
const z_loaned_bytes_t *payload = z_sample_payload(sample);
size_t len = z_bytes_len(payload);
dds_istream_t is = {.m_buffer = (unsigned char *)(payload), .m_size = static_cast<int>(len),
.m_index = 4, .m_xcdr_version = DDSI_RTPS_CDR_ENC_VERSION_2
};
dds_stream_read(&is, data, &dds_allocator, _cdr_ops);
// As long as we don't have timesynchronization between Zenoh nodes
// we've to manually set the timestamp
fix_timestamp(data);
// ORB_ID::input_rc needs additional timestamp fixup
if (static_cast<ORB_ID>(_uorb_meta->o_id) == ORB_ID::input_rc) {
memcpy(&data[8], data, sizeof(hrt_abstime));
}
orb_publish(_uorb_meta, _uorb_pub_handle, &data);
};
void fix_timestamp(char *data)
{
hrt_abstime now = hrt_absolute_time();
memcpy(data, &now, sizeof(hrt_abstime));
}
void print()
{
Zenoh_Subscriber::print("uORB", _uorb_meta->o_name);
}
protected:
// Default payload-size function -- can specialize in derived class
size_t get_payload_size()
{
return _uorb_meta->o_size;
}
private:
const orb_metadata *_uorb_meta;
orb_advert_t _uorb_pub_handle;
const uint32_t *_cdr_ops;
};