Index/include / boost / corosio / native / native_udp.hpp

include/boost/corosio/native/native_udp.hpp

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boost::corosio::native_udp::native_udp(bool) :57 45x 100.0% – 100.0% boost::corosio::native_udp::v4() :61 38x 100.0% – 100.0% boost::corosio::native_udp::v6() :67 7x 100.0% – 100.0% boost::corosio::native_udp::family() const :79 45x 100.0% 100.0% 100.0% boost::corosio::native_udp::type() :85 45x 100.0% – 100.0% boost::corosio::native_udp::protocol() :91 45x 100.0% – 100.0%
Line Branch TLA Hits Source Code
1 //
2 // Copyright (c) 2026 Steve Gerbino
3 //
4 // Distributed under the Boost Software License, Version 1.0. (See accompanying
5 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 //
7 // Official repository: https://github.com/cppalliance/corosio
8 //
9
10 /** @file native_udp.hpp
11
12 Inline UDP protocol type using platform-specific constants.
13 All methods are `constexpr` or trivially inlined, giving zero
14 overhead compared to hand-written socket creation calls.
15
16 This header includes platform socket headers
17 (`<sys/socket.h>`, `<netinet/in.h>`, etc.).
18 For a version that avoids platform includes, use
19 `<boost/corosio/udp.hpp>` (`boost::corosio::udp`).
20
21 Both variants satisfy the same protocol-type interface and work
22 interchangeably with `udp_socket::open`.
23
24 @see boost::corosio::udp
25 */
26
27 #ifndef BOOST_COROSIO_NATIVE_NATIVE_UDP_HPP
28 #define BOOST_COROSIO_NATIVE_NATIVE_UDP_HPP
29
30 #ifdef _WIN32
31 #include <winsock2.h>
32 #include <ws2tcpip.h>
33 #else
34 #include <netinet/in.h>
35 #include <sys/socket.h>
36 #endif
37
38 namespace boost::corosio {
39
40 class udp_socket;
41
42 } // namespace boost::corosio
43
44 namespace boost::corosio {
45
46 /** Inline UDP protocol type with platform constants.
47
48 Same shape as @ref boost::corosio::udp but with inline
49 `family()`, `type()`, and `protocol()` methods that
50 resolve to compile-time constants.
51
52 @see boost::corosio::udp
53 */
54 class native_udp
55 {
56 bool v6_;
57 45x explicit constexpr native_udp(bool v6) noexcept : v6_(v6) {}
58
59 public:
60 /// Construct an IPv4 UDP protocol.
61 38x static constexpr native_udp v4() noexcept
62 {
63 38x return native_udp(false);
64 }
65
66 /// Construct an IPv6 UDP protocol.
67 7x static constexpr native_udp v6() noexcept
68 {
69 7x return native_udp(true);
70 }
71
72 /// Return true if this is IPv6.
73 constexpr bool is_v6() const noexcept
74 {
75 return v6_;
76 }
77
78 /// Return the address family (AF_INET or AF_INET6).
79 45x int family() const noexcept
80 {
81
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 45x return v6_ ? AF_INET6 : AF_INET;
82 }
83
84 /// Return the socket type (SOCK_DGRAM).
85 45x static constexpr int type() noexcept
86 {
87 45x return SOCK_DGRAM;
88 }
89
90 /// Return the IP protocol (IPPROTO_UDP).
91 45x static constexpr int protocol() noexcept
92 {
93 45x return IPPROTO_UDP;
94 }
95
96 /// The associated socket type.
97 using socket = udp_socket;
98
99 friend constexpr bool operator==(native_udp a, native_udp b) noexcept
100 {
101 return a.v6_ == b.v6_;
102 }
103
104 friend constexpr bool operator!=(native_udp a, native_udp b) noexcept
105 {
106 return a.v6_ != b.v6_;
107 }
108 };
109
110 } // namespace boost::corosio
111
112 #endif // BOOST_COROSIO_NATIVE_NATIVE_UDP_HPP
113