update ceph source to reef 18.1.2

[ceph.git] / ceph / src / seastar / include / seastar / net / ipv4_address.hh

diff --git a/ceph/src/seastar/include/seastar/net/ipv4_address.hh b/ceph/src/seastar/include/seastar/net/ipv4_address.hh
new file mode 100644 (file)
index 0000000..6056e23
--- /dev/null
+++ b/ceph/src/seastar/include/seastar/net/ipv4_address.hh
@@ -0,0 +1,89 @@
+/*
+ * This file is open source software, licensed to you under the terms
+ * of the Apache License, Version 2.0 (the "License").  See the NOTICE file
+ * distributed with this work for additional information regarding copyright
+ * ownership.  You may not use this file except in compliance with the License.
+ *
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/*
+ * Copyright (C) 2022 ScyllaDB
+ *
+ */
+
+#pragma once
+
+#include <seastar/net/socket_defs.hh>
+#include <seastar/core/byteorder.hh>
+
+namespace seastar {
+
+namespace net {
+
+struct ipv4_address {
+    ipv4_address() noexcept : ip(0) {}
+    explicit ipv4_address(uint32_t ip) noexcept : ip(ip) {}
+    // throws if addr is not a valid ipv4 address
+    explicit ipv4_address(const std::string& addr);
+    ipv4_address(ipv4_addr addr) noexcept {
+        ip = addr.ip;
+    }
+
+    packed<uint32_t> ip;
+
+    template <typename Adjuster>
+    auto adjust_endianness(Adjuster a) { return a(ip); }
+
+    friend bool operator==(ipv4_address x, ipv4_address y) noexcept {
+        return x.ip == y.ip;
+    }
+    friend bool operator!=(ipv4_address x, ipv4_address y) noexcept {
+        return x.ip != y.ip;
+    }
+
+    static ipv4_address read(const char* p) noexcept {
+        ipv4_address ia;
+        ia.ip = read_be<uint32_t>(p);
+        return ia;
+    }
+    static ipv4_address consume(const char*& p) noexcept {
+        auto ia = read(p);
+        p += 4;
+        return ia;
+    }
+    void write(char* p) const noexcept {
+        write_be<uint32_t>(p, ip);
+    }
+    void produce(char*& p) const noexcept {
+        produce_be<uint32_t>(p, ip);
+    }
+    static constexpr size_t size() {
+        return 4;
+    }
+} __attribute__((packed));
+
+static inline bool is_unspecified(ipv4_address addr) noexcept { return addr.ip == 0; }
+
+std::ostream& operator<<(std::ostream& os, const ipv4_address& a);
+
+}
+
+}
+
+namespace std {
+
+template <>
+struct hash<seastar::net::ipv4_address> {
+    size_t operator()(seastar::net::ipv4_address a) const { return a.ip; }
+};
+
+}