Program Listing for File nlxpurereader.hpp

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// ---------------------------------------------------------------------
// This file is part of falcon-core.
//
// Copyright (C) 2015, 2016, 2017 Neuro-Electronics Research Flanders
//
// Falcon-server is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Falcon-server is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with falcon-core. If not, see <http://www.gnu.org/licenses/>.
// ---------------------------------------------------------------------

#pragma once

#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/select.h>
#include <sys/time.h>
#include <limits>

#include "iprocessor.hpp"
#include "neuralynx/nlx.hpp"
#include "options/options.hpp"
#include "utilities/time.hpp"
#include "vectordata/vectordata.hpp"

class NlxPureReader : public IProcessor {
  // CONSTRUCTOR and OVERLOADED METHODS
 public:
  NlxPureReader();
  void CreatePorts() override;
  void CompleteStreamInfo() override;
  void Prepare(GlobalContext &context) override;
  void Preprocess(ProcessingContext &context) override;
  void Process(ProcessingContext &context) override;
  void Postprocess(ProcessingContext &context) override;

  // PORTS
 protected:
  PortOut<VectorType<uint32_t>> *output_port_;

  // STATES
 protected:
  BroadcasterState<uint64_t> *n_invalid_;

  // VARIABLES
 protected:
  fd_set file_descriptor_set_;
  int udp_socket_;
  int udp_socket_select_;
  struct sockaddr_in server_addr_;
  uint64_t valid_packet_counter_;
  struct timeval timeout_;
  TimePoint first_valid_packet_arrival_time_;
  ssize_t size_;
  int recvlen_;
  VectorType<uint32_t>::Data *data_out_;

  // CONSTANTS
 public:
  const decltype(timeout_.tv_sec) TIMEOUT_SEC = 3;

  // OPTIONS
 protected:
  options::String address_{"127.0.0.1"};
  options::Value<unsigned int, false> port_{5000};
  options::Value<std::uint64_t, false> npackets_{
      0, options::zeroismax<std::uint64_t>()};
  options::Value<unsigned int, false> nchannels_{nlx::NLX_DEFAULT_NCHANNELS};
};