85 lines
2.4 KiB
C++
85 lines
2.4 KiB
C++
/*
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* 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
|
|
|
|
#include <ostream>
|
|
|
|
#include <folly/net/detail/SocketFileDescriptorMap.h>
|
|
#include <folly/portability/Windows.h>
|
|
|
|
namespace folly {
|
|
/**
|
|
* This is just a very thin wrapper around either a file descriptor or
|
|
* a SOCKET depending on platform, along with a couple of helper methods
|
|
* for explicitly converting to/from file descriptors, even on Windows.
|
|
*/
|
|
struct NetworkSocket {
|
|
#ifdef _WIN32
|
|
using native_handle_type = SOCKET;
|
|
static constexpr native_handle_type invalid_handle_value = INVALID_SOCKET;
|
|
#else
|
|
using native_handle_type = int;
|
|
static constexpr native_handle_type invalid_handle_value = -1;
|
|
#endif
|
|
|
|
native_handle_type data;
|
|
|
|
constexpr NetworkSocket() : data(invalid_handle_value) {}
|
|
constexpr explicit NetworkSocket(native_handle_type d) : data(d) {}
|
|
|
|
template <typename T>
|
|
static NetworkSocket fromFd(T) = delete;
|
|
static NetworkSocket fromFd(int fd) {
|
|
return NetworkSocket(
|
|
netops::detail::SocketFileDescriptorMap::fdToSocket(fd));
|
|
}
|
|
|
|
int toFd() const {
|
|
return netops::detail::SocketFileDescriptorMap::socketToFd(data);
|
|
}
|
|
|
|
friend constexpr bool operator==(
|
|
const NetworkSocket& a,
|
|
const NetworkSocket& b) noexcept {
|
|
return a.data == b.data;
|
|
}
|
|
|
|
friend constexpr bool operator!=(
|
|
const NetworkSocket& a,
|
|
const NetworkSocket& b) noexcept {
|
|
return !(a == b);
|
|
}
|
|
};
|
|
|
|
template <class CharT, class Traits>
|
|
inline std::basic_ostream<CharT, Traits>& operator<<(
|
|
std::basic_ostream<CharT, Traits>& os,
|
|
const NetworkSocket& addr) {
|
|
os << "folly::NetworkSocket(" << addr.data << ")";
|
|
return os;
|
|
}
|
|
} // namespace folly
|
|
|
|
namespace std {
|
|
template <>
|
|
struct hash<folly::NetworkSocket> {
|
|
size_t operator()(const folly::NetworkSocket& s) const noexcept {
|
|
return std::hash<folly::NetworkSocket::native_handle_type>()(s.data);
|
|
}
|
|
};
|
|
} // namespace std
|