diff options
Diffstat (limited to '')
-rw-r--r-- | src/core/network/network.cpp | 652 | ||||
-rw-r--r-- | src/core/network/network.h | 87 | ||||
-rw-r--r-- | src/core/network/sockets.h | 94 |
3 files changed, 833 insertions, 0 deletions
diff --git a/src/core/network/network.cpp b/src/core/network/network.cpp new file mode 100644 index 000000000..fb21b0a47 --- /dev/null +++ b/src/core/network/network.cpp @@ -0,0 +1,652 @@ +// Copyright 2020 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <algorithm> +#include <cstring> +#include <limits> +#include <utility> +#include <vector> + +#ifdef _WIN32 +#define _WINSOCK_DEPRECATED_NO_WARNINGS // gethostname +#include <winsock2.h> +#elif __unix__ +#include <errno.h> +#include <fcntl.h> +#include <netdb.h> +#include <poll.h> +#include <unistd.h> +#else +#error "Unimplemented platform" +#endif + +#include "common/assert.h" +#include "common/common_types.h" +#include "common/logging/log.h" +#include "core/network/network.h" +#include "core/network/sockets.h" + +namespace Network { + +namespace { + +#ifdef _WIN32 + +using socklen_t = int; + +void Initialize() { + WSADATA wsa_data; + (void)WSAStartup(MAKEWORD(2, 2), &wsa_data); +} + +void Finalize() { + WSACleanup(); +} + +constexpr IPv4Address TranslateIPv4(in_addr addr) { + auto& bytes = addr.S_un.S_un_b; + return IPv4Address{bytes.s_b1, bytes.s_b2, bytes.s_b3, bytes.s_b4}; +} + +sockaddr TranslateFromSockAddrIn(SockAddrIn input) { + sockaddr_in result; + +#ifdef __unix__ + result.sin_len = sizeof(result); +#endif + + switch (static_cast<Domain>(input.family)) { + case Domain::INET: + result.sin_family = AF_INET; + break; + default: + UNIMPLEMENTED_MSG("Unhandled sockaddr family={}", static_cast<int>(input.family)); + result.sin_family = AF_INET; + break; + } + + result.sin_port = htons(input.portno); + + auto& ip = result.sin_addr.S_un.S_un_b; + ip.s_b1 = input.ip[0]; + ip.s_b2 = input.ip[1]; + ip.s_b3 = input.ip[2]; + ip.s_b4 = input.ip[3]; + + sockaddr addr; + std::memcpy(&addr, &result, sizeof(addr)); + return addr; +} + +LINGER MakeLinger(bool enable, u32 linger_value) { + ASSERT(linger_value <= std::numeric_limits<u_short>::max()); + + LINGER value; + value.l_onoff = enable ? 1 : 0; + value.l_linger = static_cast<u_short>(linger_value); + return value; +} + +int LastError() { + return WSAGetLastError(); +} + +bool EnableNonBlock(SOCKET fd, bool enable) { + u_long value = enable ? 1 : 0; + return ioctlsocket(fd, FIONBIO, &value) != SOCKET_ERROR; +} + +#elif __unix__ // ^ _WIN32 v __unix__ + +using SOCKET = int; +using WSAPOLLFD = pollfd; +using ULONG = u64; + +constexpr SOCKET INVALID_SOCKET = -1; +constexpr SOCKET SOCKET_ERROR = -1; + +constexpr int WSAEWOULDBLOCK = EAGAIN; +constexpr int WSAENOTCONN = ENOTCONN; + +constexpr int SD_RECEIVE = SHUT_RD; +constexpr int SD_SEND = SHUT_WR; +constexpr int SD_BOTH = SHUT_RDWR; + +void Initialize() {} + +void Finalize() {} + +constexpr IPv4Address TranslateIPv4(in_addr addr) { + const u32 bytes = addr.s_addr; + return IPv4Address{static_cast<u8>(bytes), static_cast<u8>(bytes >> 8), + static_cast<u8>(bytes >> 16), static_cast<u8>(bytes >> 24)}; +} + +sockaddr TranslateFromSockAddrIn(SockAddrIn input) { + sockaddr_in result; + + switch (static_cast<Domain>(input.family)) { + case Domain::INET: + result.sin_family = AF_INET; + break; + default: + UNIMPLEMENTED_MSG("Unhandled sockaddr family={}", static_cast<int>(input.family)); + result.sin_family = AF_INET; + break; + } + + result.sin_port = htons(input.portno); + + result.sin_addr.s_addr = input.ip[0] | input.ip[1] << 8 | input.ip[2] << 16 | input.ip[3] << 24; + + sockaddr addr; + std::memcpy(&addr, &result, sizeof(addr)); + return addr; +} + +int WSAPoll(WSAPOLLFD* fds, ULONG nfds, int timeout) { + return poll(fds, nfds, timeout); +} + +int closesocket(SOCKET fd) { + return close(fd); +} + +linger MakeLinger(bool enable, u32 linger_value) { + linger value; + value.l_onoff = enable ? 1 : 0; + value.l_linger = linger_value; + return value; +} + +int LastError() { + return errno; +} + +bool EnableNonBlock(int fd, bool enable) { + int flags = fcntl(fd, F_GETFD); + if (flags == -1) { + return false; + } + if (enable) { + flags |= O_NONBLOCK; + } else { + flags &= ~O_NONBLOCK; + } + return fcntl(fd, F_SETFD, flags) == 0; +} + +#endif + +int TranslateDomain(Domain domain) { + switch (domain) { + case Domain::INET: + return AF_INET; + default: + UNIMPLEMENTED_MSG("Unimplemented domain={}", static_cast<int>(domain)); + return 0; + } +} + +int TranslateType(Type type) { + switch (type) { + case Type::STREAM: + return SOCK_STREAM; + case Type::DGRAM: + return SOCK_DGRAM; + default: + UNIMPLEMENTED_MSG("Unimplemented type={}", static_cast<int>(type)); + return 0; + } +} + +int TranslateProtocol(Protocol protocol) { + switch (protocol) { + case Protocol::TCP: + return IPPROTO_TCP; + case Protocol::UDP: + return IPPROTO_UDP; + default: + UNIMPLEMENTED_MSG("Unimplemented protocol={}", static_cast<int>(protocol)); + return 0; + } +} + +SockAddrIn TranslateToSockAddrIn(sockaddr input_) { + sockaddr_in input; + std::memcpy(&input, &input_, sizeof(input)); + + SockAddrIn result; + + switch (input.sin_family) { + case AF_INET: + result.family = Domain::INET; + break; + default: + UNIMPLEMENTED_MSG("Unhandled sockaddr family={}", input.sin_family); + result.family = Domain::INET; + break; + } + + result.portno = ntohs(input.sin_port); + + result.ip = TranslateIPv4(input.sin_addr); + + return result; +} + +u16 TranslatePollEvents(u16 events) { + u16 result = 0; + + if (events & POLL_IN) { + events &= ~POLL_IN; + result |= POLLIN; + } + if (events & POLL_PRI) { + events &= ~POLL_PRI; +#ifdef _WIN32 + LOG_WARNING(Service, "Winsock doesn't support POLLPRI"); +#else + result |= POLL_PRI; +#endif + } + if (events & POLL_OUT) { + events &= ~POLL_OUT; + result |= POLLOUT; + } + + UNIMPLEMENTED_IF_MSG(events != 0, "Unhandled guest events=0x{:x}", events); + + return result; +} + +u16 TranslatePollRevents(u16 revents) { + u16 result = 0; + const auto translate = [&result, &revents](int host, unsigned guest) { + if (revents & host) { + revents &= ~host; + result |= guest; + } + }; + + translate(POLLIN, POLL_IN); + translate(POLLPRI, POLL_PRI); + translate(POLLOUT, POLL_OUT); + translate(POLLERR, POLL_ERR); + translate(POLLHUP, POLL_HUP); + + UNIMPLEMENTED_IF_MSG(revents != 0, "Unhandled host revents=0x{:x}", revents); + + return result; +} + +template <typename T> +Errno SetSockOpt(SOCKET fd, int option, T value) { + const int result = + setsockopt(fd, SOL_SOCKET, option, reinterpret_cast<const char*>(&value), sizeof(value)); + if (result != SOCKET_ERROR) { + return Errno::SUCCESS; + } + const int ec = LastError(); + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return Errno::SUCCESS; +} + +} // Anonymous namespace + +NetworkInstance::NetworkInstance() { + Initialize(); +} + +NetworkInstance::~NetworkInstance() { + Finalize(); +} + +std::pair<IPv4Address, Errno> GetHostIPv4Address() { + std::array<char, 256> name{}; + if (gethostname(name.data(), static_cast<int>(name.size()) - 1) == SOCKET_ERROR) { + UNIMPLEMENTED_MSG("Unhandled gethostname error"); + return {IPv4Address{}, Errno::SUCCESS}; + } + + hostent* const ent = gethostbyname(name.data()); + if (!ent) { + UNIMPLEMENTED_MSG("Unhandled gethostbyname error"); + return {IPv4Address{}, Errno::SUCCESS}; + } + if (ent->h_addr_list == nullptr) { + UNIMPLEMENTED_MSG("No addr provided in hostent->h_addr_list"); + return {IPv4Address{}, Errno::SUCCESS}; + } + if (ent->h_length != sizeof(in_addr)) { + UNIMPLEMENTED_MSG("Unexpected size={} in hostent->h_length", ent->h_length); + } + + in_addr addr; + std::memcpy(&addr, ent->h_addr_list[0], sizeof(addr)); + return {TranslateIPv4(addr), Errno::SUCCESS}; +} + +std::pair<s32, Errno> Poll(std::vector<PollFD>& pollfds, s32 timeout) { + const size_t num = pollfds.size(); + + std::vector<WSAPOLLFD> host_pollfds(pollfds.size()); + std::transform(pollfds.begin(), pollfds.end(), host_pollfds.begin(), [](PollFD fd) { + WSAPOLLFD result; + result.fd = fd.socket->fd; + result.events = TranslatePollEvents(fd.events); + result.revents = 0; + return result; + }); + + const int result = WSAPoll(host_pollfds.data(), static_cast<ULONG>(num), timeout); + if (result == 0) { + ASSERT(std::all_of(host_pollfds.begin(), host_pollfds.end(), + [](WSAPOLLFD fd) { return fd.revents == 0; })); + return {0, Errno::SUCCESS}; + } + + for (size_t i = 0; i < num; ++i) { + pollfds[i].revents = TranslatePollRevents(host_pollfds[i].revents); + } + + if (result > 0) { + return {result, Errno::SUCCESS}; + } + + ASSERT(result == SOCKET_ERROR); + + const int ec = LastError(); + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return {-1, Errno::SUCCESS}; +} + +Socket::~Socket() { + if (fd == INVALID_SOCKET) { + return; + } + (void)closesocket(fd); + fd = INVALID_SOCKET; +} + +Socket::Socket(Socket&& rhs) noexcept : fd{std::exchange(rhs.fd, INVALID_SOCKET)} {} + +Errno Socket::Initialize(Domain domain, Type type, Protocol protocol) { + fd = socket(TranslateDomain(domain), TranslateType(type), TranslateProtocol(protocol)); + if (fd != INVALID_SOCKET) { + return Errno::SUCCESS; + } + + const int ec = LastError(); + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return Errno::SUCCESS; +} + +std::pair<Socket::AcceptResult, Errno> Socket::Accept() { + sockaddr addr; + socklen_t addrlen = sizeof(addr); + const SOCKET new_socket = accept(fd, &addr, &addrlen); + + if (new_socket == INVALID_SOCKET) { + const int ec = LastError(); + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return {AcceptResult{}, Errno::SUCCESS}; + } + + AcceptResult result; + result.socket = std::make_unique<Socket>(); + result.socket->fd = new_socket; + + ASSERT(addrlen == sizeof(sockaddr_in)); + result.sockaddr_in = TranslateToSockAddrIn(addr); + + return {std::move(result), Errno::SUCCESS}; +} + +Errno Socket::Connect(SockAddrIn addr_in) { + const sockaddr host_addr_in = TranslateFromSockAddrIn(addr_in); + if (connect(fd, &host_addr_in, sizeof(host_addr_in)) != INVALID_SOCKET) { + return Errno::SUCCESS; + } + + switch (const int ec = LastError()) { + case WSAEWOULDBLOCK: + LOG_DEBUG(Service, "EAGAIN generated"); + return Errno::AGAIN; + default: + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return Errno::SUCCESS; + } +} + +std::pair<SockAddrIn, Errno> Socket::GetPeerName() { + sockaddr addr; + socklen_t addrlen = sizeof(addr); + if (getpeername(fd, &addr, &addrlen) == SOCKET_ERROR) { + const int ec = LastError(); + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return {SockAddrIn{}, Errno::SUCCESS}; + } + + ASSERT(addrlen == sizeof(sockaddr_in)); + return {TranslateToSockAddrIn(addr), Errno::SUCCESS}; +} + +std::pair<SockAddrIn, Errno> Socket::GetSockName() { + sockaddr addr; + socklen_t addrlen = sizeof(addr); + if (getsockname(fd, &addr, &addrlen) == SOCKET_ERROR) { + const int ec = LastError(); + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return {SockAddrIn{}, Errno::SUCCESS}; + } + + ASSERT(addrlen == sizeof(sockaddr_in)); + return {TranslateToSockAddrIn(addr), Errno::SUCCESS}; +} + +Errno Socket::Bind(SockAddrIn addr) { + const sockaddr addr_in = TranslateFromSockAddrIn(addr); + if (bind(fd, &addr_in, sizeof(addr_in)) != SOCKET_ERROR) { + return Errno::SUCCESS; + } + + const int ec = LastError(); + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return Errno::SUCCESS; +} + +Errno Socket::Listen(s32 backlog) { + if (listen(fd, backlog) != SOCKET_ERROR) { + return Errno::SUCCESS; + } + + const int ec = LastError(); + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return Errno::SUCCESS; +} + +Errno Socket::Shutdown(ShutdownHow how) { + int host_how = 0; + switch (how) { + case ShutdownHow::RD: + host_how = SD_RECEIVE; + break; + case ShutdownHow::WR: + host_how = SD_SEND; + break; + case ShutdownHow::RDWR: + host_how = SD_BOTH; + break; + default: + UNIMPLEMENTED_MSG("Unimplemented flag how={}", static_cast<int>(how)); + return Errno::SUCCESS; + } + if (shutdown(fd, host_how) != SOCKET_ERROR) { + return Errno::SUCCESS; + } + + switch (const int ec = LastError()) { + case WSAENOTCONN: + LOG_ERROR(Service, "ENOTCONN generated"); + return Errno::NOTCONN; + default: + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return Errno::SUCCESS; + } +} + +std::pair<s32, Errno> Socket::Recv(int flags, std::vector<u8>& message) { + ASSERT(flags == 0); + ASSERT(message.size() < static_cast<size_t>(std::numeric_limits<int>::max())); + + const int result = + recv(fd, reinterpret_cast<char*>(message.data()), static_cast<int>(message.size()), 0); + if (result != SOCKET_ERROR) { + return {result, Errno::SUCCESS}; + } + + switch (const int ec = LastError()) { + case WSAEWOULDBLOCK: + LOG_DEBUG(Service, "EAGAIN generated"); + return {-1, Errno::AGAIN}; + case WSAENOTCONN: + LOG_ERROR(Service, "ENOTCONN generated"); + return {-1, Errno::NOTCONN}; + default: + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return {0, Errno::SUCCESS}; + } +} + +std::pair<s32, Errno> Socket::RecvFrom(int flags, std::vector<u8>& message, SockAddrIn* addr) { + ASSERT(flags == 0); + ASSERT(message.size() < static_cast<size_t>(std::numeric_limits<int>::max())); + + sockaddr addr_in{}; + socklen_t addrlen = sizeof(addr_in); + socklen_t* const p_addrlen = addr ? &addrlen : nullptr; + sockaddr* const p_addr_in = addr ? &addr_in : nullptr; + + const int result = recvfrom(fd, reinterpret_cast<char*>(message.data()), + static_cast<int>(message.size()), 0, p_addr_in, p_addrlen); + if (result != SOCKET_ERROR) { + if (addr) { + ASSERT(addrlen == sizeof(addr_in)); + *addr = TranslateToSockAddrIn(addr_in); + } + return {result, Errno::SUCCESS}; + } + + switch (const int ec = LastError()) { + case WSAEWOULDBLOCK: + LOG_DEBUG(Service, "EAGAIN generated"); + return {-1, Errno::AGAIN}; + case WSAENOTCONN: + LOG_ERROR(Service, "ENOTCONN generated"); + return {-1, Errno::NOTCONN}; + default: + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return {-1, Errno::SUCCESS}; + } +} + +std::pair<s32, Errno> Socket::Send(const std::vector<u8>& message, int flags) { + ASSERT(message.size() < static_cast<size_t>(std::numeric_limits<int>::max())); + ASSERT(flags == 0); + + const int result = send(fd, reinterpret_cast<const char*>(message.data()), + static_cast<int>(message.size()), 0); + if (result != SOCKET_ERROR) { + return {result, Errno::SUCCESS}; + } + + const int ec = LastError(); + switch (ec) { + case WSAEWOULDBLOCK: + LOG_DEBUG(Service, "EAGAIN generated"); + return {-1, Errno::AGAIN}; + case WSAENOTCONN: + LOG_ERROR(Service, "ENOTCONN generated"); + return {-1, Errno::NOTCONN}; + default: + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return {-1, Errno::SUCCESS}; + } +} + +std::pair<s32, Errno> Socket::SendTo(u32 flags, const std::vector<u8>& message, + const SockAddrIn* addr) { + ASSERT(flags == 0); + + const sockaddr* to = nullptr; + const int tolen = addr ? 0 : sizeof(sockaddr); + sockaddr host_addr_in; + + if (addr) { + host_addr_in = TranslateFromSockAddrIn(*addr); + to = &host_addr_in; + } + + const int result = sendto(fd, reinterpret_cast<const char*>(message.data()), + static_cast<int>(message.size()), 0, to, tolen); + if (result != SOCKET_ERROR) { + return {result, Errno::SUCCESS}; + } + + const int ec = LastError(); + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return {-1, Errno::SUCCESS}; +} + +Errno Socket::Close() { + [[maybe_unused]] const int result = closesocket(fd); + ASSERT(result == 0); + fd = INVALID_SOCKET; + + return Errno::SUCCESS; +} + +Errno Socket::SetLinger(bool enable, u32 linger) { + return SetSockOpt(fd, SO_LINGER, MakeLinger(enable, linger)); +} + +Errno Socket::SetReuseAddr(bool enable) { + return SetSockOpt<u32>(fd, SO_REUSEADDR, enable ? 1 : 0); +} + +Errno Socket::SetBroadcast(bool enable) { + return SetSockOpt<u32>(fd, SO_BROADCAST, enable ? 1 : 0); +} + +Errno Socket::SetSndBuf(u32 value) { + return SetSockOpt(fd, SO_SNDBUF, value); +} + +Errno Socket::SetRcvBuf(u32 value) { + return SetSockOpt(fd, SO_RCVBUF, value); +} + +Errno Socket::SetSndTimeo(u32 value) { + return SetSockOpt(fd, SO_SNDTIMEO, value); +} + +Errno Socket::SetRcvTimeo(u32 value) { + return SetSockOpt(fd, SO_RCVTIMEO, value); +} + +Errno Socket::SetNonBlock(bool enable) { + if (EnableNonBlock(fd, enable)) { + return Errno::SUCCESS; + } + const int ec = LastError(); + UNREACHABLE_MSG("Unhandled host socket error={}", ec); + return Errno::SUCCESS; +} + +bool Socket::IsOpened() const { + return fd != INVALID_SOCKET; +} + +} // namespace Network diff --git a/src/core/network/network.h b/src/core/network/network.h new file mode 100644 index 000000000..0622e4593 --- /dev/null +++ b/src/core/network/network.h @@ -0,0 +1,87 @@ +// Copyright 2020 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <array> +#include <utility> + +#include "common/common_types.h" + +namespace Network { + +class Socket; + +/// Error code for network functions +enum class Errno { + SUCCESS, + BADF, + INVAL, + MFILE, + NOTCONN, + AGAIN, +}; + +/// Address families +enum class Domain { + INET, ///< Address family for IPv4 +}; + +/// Socket types +enum class Type { + STREAM, + DGRAM, + RAW, + SEQPACKET, +}; + +/// Protocol values for sockets +enum class Protocol { + ICMP, + TCP, + UDP, +}; + +/// Shutdown mode +enum class ShutdownHow { + RD, + WR, + RDWR, +}; + +/// Array of IPv4 address +using IPv4Address = std::array<u8, 4>; + +/// Cross-platform sockaddr structure +struct SockAddrIn { + Domain family; + IPv4Address ip; + u16 portno; +}; + +/// Cross-platform poll fd structure +struct PollFD { + Socket* socket; + u16 events; + u16 revents; +}; + +constexpr u16 POLL_IN = 1 << 0; +constexpr u16 POLL_PRI = 1 << 1; +constexpr u16 POLL_OUT = 1 << 2; +constexpr u16 POLL_ERR = 1 << 3; +constexpr u16 POLL_HUP = 1 << 4; +constexpr u16 POLL_NVAL = 1 << 5; + +class NetworkInstance { +public: + explicit NetworkInstance(); + ~NetworkInstance(); +}; + +/// @brief Returns host's IPv4 address +/// @return Pair of an array of human ordered IPv4 address (e.g. 192.168.0.1) and an error code +std::pair<IPv4Address, Errno> GetHostIPv4Address(); + +} // namespace Network diff --git a/src/core/network/sockets.h b/src/core/network/sockets.h new file mode 100644 index 000000000..7bdff0fe4 --- /dev/null +++ b/src/core/network/sockets.h @@ -0,0 +1,94 @@ +// Copyright 2020 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <memory> +#include <utility> + +#if defined(_WIN32) +#include <winsock.h> +#elif !defined(__unix__) +#error "Platform not implemented" +#endif + +#include "common/common_types.h" +#include "core/network/network.h" + +// TODO: C++20 Replace std::vector usages with std::span + +namespace Network { + +class Socket { +public: + struct AcceptResult { + std::unique_ptr<Socket> socket; + SockAddrIn sockaddr_in; + }; + + explicit Socket() = default; + ~Socket(); + + Socket(const Socket&) = delete; + Socket& operator=(const Socket&) = delete; + + Socket(Socket&& rhs) noexcept; + + // Avoid closing sockets implicitly + Socket& operator=(Socket&&) noexcept = delete; + + Errno Initialize(Domain domain, Type type, Protocol protocol); + + Errno Close(); + + std::pair<AcceptResult, Errno> Accept(); + + Errno Connect(SockAddrIn addr_in); + + std::pair<SockAddrIn, Errno> GetPeerName(); + + std::pair<SockAddrIn, Errno> GetSockName(); + + Errno Bind(SockAddrIn addr); + + Errno Listen(s32 backlog); + + Errno Shutdown(ShutdownHow how); + + std::pair<s32, Errno> Recv(int flags, std::vector<u8>& message); + + std::pair<s32, Errno> RecvFrom(int flags, std::vector<u8>& message, SockAddrIn* addr); + + std::pair<s32, Errno> Send(const std::vector<u8>& message, int flags); + + std::pair<s32, Errno> SendTo(u32 flags, const std::vector<u8>& message, const SockAddrIn* addr); + + Errno SetLinger(bool enable, u32 linger); + + Errno SetReuseAddr(bool enable); + + Errno SetBroadcast(bool enable); + + Errno SetSndBuf(u32 value); + + Errno SetRcvBuf(u32 value); + + Errno SetSndTimeo(u32 value); + + Errno SetRcvTimeo(u32 value); + + Errno SetNonBlock(bool enable); + + bool IsOpened() const; + +#if defined(_WIN32) + SOCKET fd = INVALID_SOCKET; +#elif defined(__unix__) + int fd = -1; +#endif +}; + +std::pair<s32, Errno> Poll(std::vector<PollFD>& poll_fds, s32 timeout); + +} // namespace Network |