summaryrefslogtreecommitdiff
path: root/boost/asio/generic/detail/endpoint.hpp
blob: f28e5349adc312c1cf7648986464c84a75908f90 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
//
// generic/detail/endpoint.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// 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_GENERIC_DETAIL_ENDPOINT_HPP
#define BOOST_ASIO_GENERIC_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>

#include <cstddef>
#include <boost/asio/detail/socket_types.hpp>

#include <boost/asio/detail/push_options.hpp>

namespace boost {
namespace asio {
namespace generic {
namespace detail {

// Helper class for implementing a generic socket endpoint.
class endpoint
{
public:
  // Default constructor.
  BOOST_ASIO_DECL endpoint();

  // Construct an endpoint from the specified raw bytes.
  BOOST_ASIO_DECL endpoint(const void* sock_addr,
      std::size_t sock_addr_size, int sock_protocol);

  // Copy constructor.
  endpoint(const endpoint& other)
    : data_(other.data_),
      size_(other.size_),
      protocol_(other.protocol_)
  {
  }

  // Assign from another endpoint.
  endpoint& operator=(const endpoint& other)
  {
    data_ = other.data_;
    size_ = other.size_;
    protocol_ = other.protocol_;
    return *this;
  }

  // Get the address family associated with the endpoint.
  int family() const
  {
    return data_.base.sa_family;
  }

  // Get the socket protocol associated with the endpoint.
  int protocol() const
  {
    return protocol_;
  }

  // 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 size_;
  }

  // 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_storage_type);
  }

  // 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 socket address.
  union data_union
  {
    boost::asio::detail::socket_addr_type base;
    boost::asio::detail::sockaddr_storage_type generic;
  } data_;

  // The length of the socket address stored in the endpoint.
  std::size_t size_;

  // The socket protocol associated with the endpoint.
  int protocol_;

  // Initialise with a specified memory.
  BOOST_ASIO_DECL void init(const void* sock_addr,
      std::size_t sock_addr_size, int sock_protocol);
};

} // namespace detail
} // namespace generic
} // namespace asio
} // namespace boost

#include <boost/asio/detail/pop_options.hpp>

#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/generic/detail/impl/endpoint.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)

#endif // BOOST_ASIO_GENERIC_DETAIL_ENDPOINT_HPP