tcp-channel.hpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
#ifndef NFD_DAEMON_FACE_TCP_CHANNEL_HPP
#define NFD_DAEMON_FACE_TCP_CHANNEL_HPP

#include "channel.hpp"
#include "core/scheduler.hpp"

namespace nfd {

namespace tcp {
typedef boost::asio::ip::tcp::endpoint Endpoint;
} // namespace tcp

class TcpChannel : public Channel
{
public:
  explicit
  TcpChannel(const tcp::Endpoint& localEndpoint);

  void
  listen(const FaceCreatedCallback& onFaceCreated,
         const FaceCreationFailedCallback& onAcceptFailed,
         int backlog = boost::asio::ip::tcp::acceptor::max_connections);

  void
  connect(const tcp::Endpoint& remoteEndpoint,
          bool wantLocalFieldsEnabled,
          const FaceCreatedCallback& onFaceCreated,
          const FaceCreationFailedCallback& onConnectFailed,
          const time::seconds& timeout = time::seconds(4));

  size_t
  size() const;

  bool
  isListening() const;

private:
  void
  createFace(boost::asio::ip::tcp::socket&& socket,
             bool isOnDemand,
             bool wantLocalFieldsEnabled,
             const FaceCreatedCallback& onFaceCreated);

  void
  accept(const FaceCreatedCallback& onFaceCreated,
         const FaceCreationFailedCallback& onAcceptFailed);

  void
  handleAccept(const boost::system::error_code& error,
               const FaceCreatedCallback& onFaceCreated,
               const FaceCreationFailedCallback& onAcceptFailed);

  void
  handleConnect(const boost::system::error_code& error,
                const shared_ptr<boost::asio::ip::tcp::socket>& socket,
                bool wantLocalFieldsEnabled,
                const scheduler::EventId& connectTimeoutEvent,
                const FaceCreatedCallback& onFaceCreated,
                const FaceCreationFailedCallback& onConnectFailed);

  void
  handleConnectTimeout(const shared_ptr<boost::asio::ip::tcp::socket>& socket,
                       const FaceCreationFailedCallback& onConnectFailed);

private:
  std::map<tcp::Endpoint, shared_ptr<Face>> m_channelFaces;

  tcp::Endpoint m_localEndpoint;
  boost::asio::ip::tcp::acceptor m_acceptor;
  boost::asio::ip::tcp::socket m_acceptSocket;
};

inline bool
TcpChannel::isListening() const
{
  return m_acceptor.is_open();
}

} // namespace nfd

#endif // NFD_DAEMON_FACE_TCP_CHANNEL_HPP