text: //
  // local/detail/endpoint.hpp
  // ~~~~~~~~~~~~~~~~~~~~~~~~~
  //
  // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
  // Derived from a public domain implementation written by Daniel Casimiro.
  //
  // Distributed under the Boost Software License, Version 1.0. (See accompanying
  // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  //
  
  #ifndef BOOST_ASIO_LOCAL_DETAIL_ENDPOINT_HPP
  #define BOOST_ASIO_LOCAL_DETAIL_ENDPOINT_HPP
  
  #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  # pragma once
  #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  
  #include <boost/asio/detail/config.hpp>
  
  #if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
  
  #include <cstddef>
  #include <string>
  #include <boost/asio/detail/socket_types.hpp>
  
  #include <boost/asio/detail/push_options.hpp>
  
  namespace boost {
  namespace asio {
  namespace local {
  namespace detail {
  
  // Helper class for implementing a UNIX domain endpoint.
  class endpoint
  {
  public:
    // Default constructor.
    BOOST_ASIO_DECL endpoint();
  
    // Construct an endpoint using the specified path name.
    BOOST_ASIO_DECL endpoint(const char* path_name);
  
    // Construct an endpoint using the specified path name.
    BOOST_ASIO_DECL endpoint(const std::string& path_name);
  
    // Copy constructor.
    endpoint(const endpoint& other)
      : data_(other.data_),
        path_length_(other.path_length_)
    {
    }
  
    // Assign from another endpoint.
    endpoint& operator=(const endpoint& other)
    {
      data_ = other.data_;
      path_length_ = other.path_length_;
      return *this;
    }
  
    // Get the underlying endpoint in the native type.
    boost::asio::detail::socket_addr_type* data()
    {
      return &data_.base;
    }
  
    // Get the underlying endpoint in the native type.
    const boost::asio::detail::socket_addr_type* data() const
    {
      return &data_.base;
    }
  
    // Get the underlying size of the endpoint in the native type.
    std::size_t size() const
    {
      return path_length_
        + offsetof(boost::asio::detail::sockaddr_un_type, sun_path);
    }
  
    // Set the underlying size of the endpoint in the native type.
    BOOST_ASIO_DECL void resize(std::size_t size);
  
    // Get the capacity of the endpoint in the native type.
    std::size_t capacity() const
    {
      return sizeof(boost::asio::detail::sockaddr_un_type);
    }
  
    // Get the path associated with the endpoint.
    BOOST_ASIO_DECL std::string path() const;
  
    // Set the path associated with the endpoint.
    BOOST_ASIO_DECL void path(const char* p);
  
    // Set the path associated with the endpoint.
    BOOST_ASIO_DECL void path(const std::string& p);
  
    // Compare two endpoints for equality.
    BOOST_ASIO_DECL friend bool operator==(
        const endpoint& e1, const endpoint& e2);
  
    // Compare endpoints for ordering.
    BOOST_ASIO_DECL friend bool operator<(
        const endpoint& e1, const endpoint& e2);
  
  private:
    // The underlying UNIX socket address.
    union data_union
    {
      boost::asio::detail::socket_addr_type base;
      boost::asio::detail::sockaddr_un_type local;
    } data_;
  
    // The length of the path associated with the endpoint.
    std::size_t path_length_;
  
    // Initialise with a specified path.
    BOOST_ASIO_DECL void init(const char* path, std::size_t path_length);
  };
  
  } // namespace detail
  } // namespace local
  } // namespace asio
  } // namespace boost
  
  #include <boost/asio/detail/pop_options.hpp>
  
  #if defined(BOOST_ASIO_HEADER_ONLY)
  # include <boost/asio/local/detail/impl/endpoint.ipp>
  #endif // defined(BOOST_ASIO_HEADER_ONLY)
  
  #endif // defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
  
  #endif // BOOST_ASIO_LOCAL_DETAIL_ENDPOINT_HPP
  