Seastar
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ipv4_address.hh
1/*
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3 * of the Apache License, Version 2.0 (the "License"). See the NOTICE file
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7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
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12 * software distributed under the License is distributed on an
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15 * specific language governing permissions and limitations
16 * under the License.
17 */
18/*
19 * Copyright (C) 2022 ScyllaDB
20 *
21 */
22
23#pragma once
24
25#include <seastar/net/socket_defs.hh>
26#include <seastar/core/byteorder.hh>
27#include <seastar/util/modules.hh>
28
29namespace seastar {
30
31namespace net {
32
33SEASTAR_MODULE_EXPORT_BEGIN
34
36 ipv4_address() noexcept : ip(0) {}
37 explicit ipv4_address(uint32_t ip) noexcept : ip(ip) {}
38 // throws if addr is not a valid ipv4 address
39 explicit ipv4_address(const std::string& addr);
40 ipv4_address(ipv4_addr addr) noexcept {
41 ip = addr.ip;
42 }
43
45
46 template <typename Adjuster>
47 auto adjust_endianness(Adjuster a) { return a(ip); }
48
49 friend bool operator==(ipv4_address x, ipv4_address y) noexcept {
50 return x.ip == y.ip;
51 }
52 friend bool operator!=(ipv4_address x, ipv4_address y) noexcept {
53 return x.ip != y.ip;
54 }
55
56 static ipv4_address read(const char* p) noexcept {
57 ipv4_address ia;
58 ia.ip = read_be<uint32_t>(p);
59 return ia;
60 }
61 static ipv4_address consume(const char*& p) noexcept {
62 auto ia = read(p);
63 p += 4;
64 return ia;
65 }
66 void write(char* p) const noexcept {
67 write_be<uint32_t>(p, ip);
68 }
69 void produce(char*& p) const noexcept {
70 produce_be<uint32_t>(p, ip);
71 }
72 static constexpr size_t size() {
73 return 4;
74 }
75} __attribute__((packed));
76
77inline bool is_unspecified(ipv4_address addr) noexcept { return addr.ip == 0; }
78
79std::ostream& operator<<(std::ostream& os, const ipv4_address& a);
80
81SEASTAR_MODULE_EXPORT_END
82
83}
84
85}
86
87namespace std {
88
89SEASTAR_MODULE_EXPORT
90template <>
91struct hash<seastar::net::ipv4_address> {
92 size_t operator()(seastar::net::ipv4_address a) const { return a.ip; }
93};
94
95}
Seastar API namespace.
Definition: abort_on_ebadf.hh:26
STL namespace.
Definition: socket_defs.hh:113
Definition: ipv4_address.hh:35
Definition: unaligned.hh:58