snd_sample.cpp

/* ========================= eCAL LICENSE =================================
 *
 * Copyright (C) 2016 - 2019 Continental Corporation
 *
 * 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.
 *
 * ========================= eCAL LICENSE =================================
*/

/**
 * @brief  Sender thread for ecal samples
**/

#include <ecal/ecal.h>

#include "snd_sample.h"
#include "snd_raw_buffer.h"

namespace
{
  size_t TransmitToUDP(const void* buf_, const size_t len_, const std::shared_ptr<eCAL::CUDPSender>& sample_sender_, const std::string& mcast_address_)
  {
    return (sample_sender_->Send(buf_, len_, mcast_address_.c_str()));
  }
}

namespace eCAL
{
  CSampleSender::CSampleSender(const SSenderAttr& attr_)
  {
    m_udp_sender = std::make_shared<CUDPSender>(attr_);
  }

  size_t CSampleSender::SendSample(const std::string& sample_name_, const eCAL::pb::Sample& ecal_sample_, long bandwidth_)
  {
    if (!m_udp_sender) return(0);

    // return value
    size_t sent_sum(0);

    const size_t data_size = CreateSampleBuffer(sample_name_, ecal_sample_, m_payload);
    if (data_size > 0)
    {
      // and send it
      sent_sum = SendSampleBuffer(m_payload.data(), data_size, bandwidth_, std::bind(TransmitToUDP, std::placeholders::_1, std::placeholders::_2, m_udp_sender, m_attr.ipaddr));

#ifndef NDEBUG
      // log it
      eCAL::Logging::Log(log_level_debug4, "UDP Sample Buffer Sent (" + std::to_string(sent_sum) + " Bytes)");
#endif
    }

    // return bytes sent
    return(sent_sum);
  }
}