/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
 * Copyright (c) 2013-2014 Regents of the University of California.
 *
 * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
 *
 * ndn-cxx library is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later version.
 *
 * ndn-cxx library 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 Lesser General Public License for more details.
 *
 * You should have received copies of the GNU General Public License and GNU Lesser
 * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
 * <http://www.gnu.org/licenses/>.
 *
 * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
 */

#ifndef NDN_TRANSPORT_TCP_TRANSPORT_HPP
#define NDN_TRANSPORT_TCP_TRANSPORT_HPP

#include "../common.hpp"
#include "transport.hpp"
#include "../util/config-file.hpp"


// forward declaration
namespace boost { namespace asio { namespace ip { class tcp; } } }

namespace ndn {

// forward declaration
template<class T, class U> class StreamTransportImpl;
template<class T, class U> class StreamTransportWithResolverImpl;

class TcpTransport : public Transport
{
public:
  TcpTransport(const std::string& host, const std::string& port = "6363");
  ~TcpTransport();

  // from Transport
  virtual void
  connect(boost::asio::io_service& ioService,
          const ReceiveCallback& receiveCallback);

  virtual void
  close();

  virtual void
  pause();

  virtual void
  resume();

  virtual void
  send(const Block& wire);

  virtual void
  send(const Block& header, const Block& payload);

  static shared_ptr<TcpTransport>
  create(const ConfigFile& config);

NDN_CXX_PUBLIC_WITH_TESTS_ELSE_PRIVATE:

  static std::pair<std::string, std::string>
  getDefaultSocketHostAndPort(const ConfigFile& config);

private:
  std::string m_host;
  std::string m_port;

  typedef StreamTransportWithResolverImpl<TcpTransport, boost::asio::ip::tcp> Impl;
  friend class StreamTransportImpl<TcpTransport, boost::asio::ip::tcp>;
  friend class StreamTransportWithResolverImpl<TcpTransport, boost::asio::ip::tcp>;
  shared_ptr< Impl > m_impl;
};

} // namespace ndn

#endif // NDN_TRANSPORT_TCP_TRANSPORT_HPP