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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2026
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/utils/port/config.h"
#include "td/utils/port/detail/NativeFd.h"
#include "td/utils/port/detail/PollableFd.h"
#include "td/utils/port/IoSlice.h"
#include "td/utils/port/IPAddress.h"
#include "td/utils/Slice.h"
#include "td/utils/Span.h"
#include "td/utils/Status.h"
#include <memory>
namespace td {
namespace detail {
class SocketFdImpl;
class SocketFdImplDeleter {
public:
void operator()(SocketFdImpl *impl);
};
} // namespace detail
class SocketFd {
public:
SocketFd();
SocketFd(const SocketFd &) = delete;
SocketFd &operator=(const SocketFd &) = delete;
SocketFd(SocketFd &&) noexcept;
SocketFd &operator=(SocketFd &&) noexcept;
~SocketFd();
Result<uint32> maximize_snd_buffer(uint32 max_size = 0);
Result<uint32> maximize_rcv_buffer(uint32 max_size = 0);
static Result<SocketFd> open(const IPAddress &address) TD_WARN_UNUSED_RESULT;
PollableFdInfo &get_poll_info();
const PollableFdInfo &get_poll_info() const;
Status get_pending_error() TD_WARN_UNUSED_RESULT;
Result<size_t> write(Slice slice) TD_WARN_UNUSED_RESULT;
Result<size_t> writev(Span<IoSlice> slices) TD_WARN_UNUSED_RESULT;
Result<size_t> read(MutableSlice slice) TD_WARN_UNUSED_RESULT;
const NativeFd &get_native_fd() const;
static Result<SocketFd> from_native_fd(NativeFd fd);
void close();
bool empty() const;
private:
std::unique_ptr<detail::SocketFdImpl, detail::SocketFdImplDeleter> impl_;
explicit SocketFd(unique_ptr<detail::SocketFdImpl> impl);
};
namespace detail {
#if TD_PORT_POSIX
Status get_socket_pending_error(const NativeFd &fd);
#elif TD_PORT_WINDOWS
Status get_socket_pending_error(const NativeFd &fd, WSAOVERLAPPED *overlapped, Status iocp_error);
#endif
} // namespace detail
} // namespace td
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