// // Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2024 // // 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/common.h" #include "td/utils/logging.h" #include "td/utils/Status.h" #include "td/utils/StringBuilder.h" namespace td { extern int VERBOSITY_NAME(fd); class NativeFd { public: #if TD_PORT_POSIX using Fd = int; using Socket = int; #elif TD_PORT_WINDOWS using Fd = HANDLE; using Socket = SOCKET; #endif NativeFd() = default; explicit NativeFd(Fd fd); NativeFd(Fd fd, bool nolog); #if TD_PORT_WINDOWS explicit NativeFd(Socket socket); #endif NativeFd(const NativeFd &) = delete; NativeFd &operator=(const NativeFd &) = delete; NativeFd(NativeFd &&other) noexcept; NativeFd &operator=(NativeFd &&other) noexcept; ~NativeFd(); explicit operator bool() const noexcept; Fd fd() const; Socket socket() const; Status set_is_blocking(bool is_blocking) const; Status set_is_blocking_unsafe(bool is_blocking) const; // may drop other Fd flags on non-Windows Status duplicate(const NativeFd &to) const; Result maximize_snd_buffer(uint32 max_size = 0) const; Result maximize_rcv_buffer(uint32 max_size = 0) const; void close(); Fd release(); Status validate() const; private: static Fd empty_fd(); Fd fd_ = empty_fd(); #if TD_PORT_WINDOWS bool is_socket_{false}; #endif static constexpr uint32 DEFAULT_MAX_SND_BUFFER_SIZE = (1 << 24); static constexpr uint32 DEFAULT_MAX_RCV_BUFFER_SIZE = (1 << 24); }; StringBuilder &operator<<(StringBuilder &sb, const NativeFd &fd); } // namespace td