socket_address.hpp

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/* Copyright 2025 Kevin Exton
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * 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.
 */
 
#pragma once
#ifndef IO_SOCKET_ADDRESS_HPP
#define IO_SOCKET_ADDRESS_HPP
#include <boost/predef.h>
 
#if BOOST_OS_WINDOWS
#include "platforms/windows/socket.hpp"
#else
#include "platforms/posix/socket.hpp"
#endif
 
namespace io::socket {
class socket_address {
 
public:
  socket_address() = default;
 
  socket_address(const socket_address &other) = default;
 
  socket_address(socket_address &&other) noexcept = default;
 
  auto operator=(const socket_address &other) -> socket_address & = default;
 
  auto operator=(socket_address &&other) noexcept -> socket_address & = default;
 
  explicit socket_address(socklen_type size) noexcept;
 
  explicit socket_address(const sockaddr_type *addr,
                          socklen_type size) noexcept;
 
  [[nodiscard]] auto data() noexcept -> sockaddr_type *;
 
  [[nodiscard]] auto data() const noexcept -> const sockaddr_type *;
 
  [[nodiscard]] auto size() noexcept -> socklen_type *;
 
  [[nodiscard]] auto size() const noexcept -> const socklen_type *;
 
  auto operator==(const socket_address &other) const noexcept -> bool;
 
  ~socket_address() = default;
 
private:
  sockaddr_storage_type storage_{};
  socklen_type size_{sizeof(storage_)};
};
 
template <typename SockAddr>
auto make_address(const SockAddr *addr = nullptr) noexcept -> socket_address {
  static_assert(sizeof(SockAddr) <= sizeof(sockaddr_storage_type),
                "SockAddr must fit into sockaddr_storage_type.");
 
  // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
  return addr ? socket_address{reinterpret_cast<const sockaddr_type *>(addr),
                               sizeof(SockAddr)}
              : socket_address{sizeof(SockAddr)};
}
 
} // namespace io::socket
 
#endif // IO_SOCKET_ADDRESS_HPP