ceph/src/boost/libs/asio/include/boost/asio/local/detail/endpoint.hpp

   1 //
   2 // local/detail/endpoint.hpp
   3 // ~~~~~~~~~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
   6 // Derived from a public domain implementation written by Daniel Casimiro.
   7 //
   8 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   9 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  10 //
  11
  12 #ifndef BOOST_ASIO_LOCAL_DETAIL_ENDPOINT_HPP
  13 #define BOOST_ASIO_LOCAL_DETAIL_ENDPOINT_HPP
  14
  15 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  16 # pragma once
  17 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  18
  19 #include <boost/asio/detail/config.hpp>
  20
  21 #if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
  22
  23 #include <cstddef>
  24 #include <string>
  25 #include <boost/asio/detail/socket_types.hpp>
  26
  27 #include <boost/asio/detail/push_options.hpp>
  28
  29 namespace boost {
  30 namespace asio {
  31 namespace local {
  32 namespace detail {
  33
  34 // Helper class for implementing a UNIX domain endpoint.
  35 class endpoint
  36 {
  37 public:
  38   // Default constructor.
  39   BOOST_ASIO_DECL endpoint();
  40
  41   // Construct an endpoint using the specified path name.
  42   BOOST_ASIO_DECL endpoint(const char* path_name);
  43
  44   // Construct an endpoint using the specified path name.
  45   BOOST_ASIO_DECL endpoint(const std::string& path_name);
  46
  47   // Copy constructor.
  48   endpoint(const endpoint& other)
  49     : data_(other.data_),
  50       path_length_(other.path_length_)
  51   {
  52   }
  53
  54   // Assign from another endpoint.
  55   endpoint& operator=(const endpoint& other)
  56   {
  57     data_ = other.data_;
  58     path_length_ = other.path_length_;
  59     return *this;
  60   }
  61
  62   // Get the underlying endpoint in the native type.
  63   boost::asio::detail::socket_addr_type* data()
  64   {
  65     return &data_.base;
  66   }
  67
  68   // Get the underlying endpoint in the native type.
  69   const boost::asio::detail::socket_addr_type* data() const
  70   {
  71     return &data_.base;
  72   }
  73
  74   // Get the underlying size of the endpoint in the native type.
  75   std::size_t size() const
  76   {
  77     return path_length_
  78       + offsetof(boost::asio::detail::sockaddr_un_type, sun_path);
  79   }
  80
  81   // Set the underlying size of the endpoint in the native type.
  82   BOOST_ASIO_DECL void resize(std::size_t size);
  83
  84   // Get the capacity of the endpoint in the native type.
  85   std::size_t capacity() const
  86   {
  87     return sizeof(boost::asio::detail::sockaddr_un_type);
  88   }
  89
  90   // Get the path associated with the endpoint.
  91   BOOST_ASIO_DECL std::string path() const;
  92
  93   // Set the path associated with the endpoint.
  94   BOOST_ASIO_DECL void path(const char* p);
  95
  96   // Set the path associated with the endpoint.
  97   BOOST_ASIO_DECL void path(const std::string& p);
  98
  99   // Compare two endpoints for equality.
 100   BOOST_ASIO_DECL friend bool operator==(
 101       const endpoint& e1, const endpoint& e2);
 102
 103   // Compare endpoints for ordering.
 104   BOOST_ASIO_DECL friend bool operator<(
 105       const endpoint& e1, const endpoint& e2);
 106
 107 private:
 108   // The underlying UNIX socket address.
 109   union data_union
 110   {
 111     boost::asio::detail::socket_addr_type base;
 112     boost::asio::detail::sockaddr_un_type local;
 113   } data_;
 114
 115   // The length of the path associated with the endpoint.
 116   std::size_t path_length_;
 117
 118   // Initialise with a specified path.
 119   BOOST_ASIO_DECL void init(const char* path, std::size_t path_length);
 120 };
 121
 122 } // namespace detail
 123 } // namespace local
 124 } // namespace asio
 125 } // namespace boost
 126
 127 #include <boost/asio/detail/pop_options.hpp>
 128
 129 #if defined(BOOST_ASIO_HEADER_ONLY)
 130 # include <boost/asio/local/detail/impl/endpoint.ipp>
 131 #endif // defined(BOOST_ASIO_HEADER_ONLY)
 132
 133 #endif // defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
 134
 135 #endif // BOOST_ASIO_LOCAL_DETAIL_ENDPOINT_HPP