/*
 * This file is part of the Owl Positioning System (OwlPS) project.
 * It is subject to the copyright notice and license terms in the
 * COPYRIGHT.t2t file found in the top-level directory of this
 * distribution and at
 *   https://code.lm7.fr/mcy/owlps/src/master/COPYRIGHT.t2t
 * No part of the OwlPS Project, including this file, may be copied,
 * modified, propagated, or distributed except according to the terms
 * contained in the COPYRIGHT.t2t file; the COPYRIGHT.t2t file must be
 * distributed along with this file, either separately or by replacing
 * this notice by the COPYRIGHT.t2t file's contents.
 */


#include "outputnetworksocket.hh"
#include "resultlist.hh"
#include "result.hh"
#include "posexcept.hh"

#include <cstdio> // For perror()
#include <unistd.h> // For close()

using namespace std ;



/* *** Constructors *** */


OutputNetworkSocket::~OutputNetworkSocket()
{
  close_socket() ;
}



/* *** Operations *** */


/**
 * Normally, the socket is closed automatically by the destructor. Use
 * this if you want to close the socket prematurely.
 * #sockfd is set to -1, even in case of error.
 * @returns `true` if the socket were successfully closed or were not
 * opened.
 * @returns `false` in case of error.
 */
bool OutputNetworkSocket::close_socket()
{
  if (sockfd >= 0)
    {
      if (close(sockfd))
        {
          perror("Cannot close network socket") ;
          return false ;
        }

      sockfd = -1 ;
    }

  return true ;
}


void OutputNetworkSocket::write(const Result &result)
{
  send_data(result.to_csv()) ;
}


void OutputNetworkSocket::write(const ResultList &results)
{
  if (! results.empty())
    send_data(results.to_csv()) ;
}