490catch (SocketException ex) when (ex.SocketErrorCode == SocketError.ConnectionRefused) 660/// A connect that fails with <see cref="SocketError.ConnectionRefused"/> cannot distinguish an

2001new SocketException((int)SocketError.ConnectionRefused)));

1110ConnectAsyncCallback = (_, _) => throw new SocketException((int)SocketError.ConnectionRefused) 1150ConnectAsyncCallback = (_, _) => throw new SocketException((int)SocketError.ConnectionRefused) 1192ConnectAsyncCallback = (_, _) => throw new SocketException((int)SocketError.ConnectionRefused)

1086ConnectAsyncCallback = (_, _) => throw new SocketException((int)SocketError.ConnectionRefused) 1114ConnectAsyncCallback = (_, _) => throw new SocketException((int)SocketError.ConnectionRefused)

1075if (current is SocketException { SocketErrorCode: SocketError.AddressAlreadyInUse })

171catch (SocketException ex) when (ex.SocketErrorCode == SocketError.AddressAlreadyInUse)

153catch (IOException ex) when (ex.InnerException is SocketException { SocketErrorCode: SocketError.ConnectionReset })

333private static bool IsTransientAcceptError(SocketError code) => code switch 337SocketError.TryAgain => true, 338SocketError.WouldBlock => true, 340SocketError.Interrupted => true,

481if (_asyncWriteEventArgs.SocketError == SocketError.Success) 720if (_asyncReadEventArgs.SocketError == SocketError.Success)

108catch (SocketException e) when (e.SocketErrorCode == SocketError.AddressAlreadyInUse)

134catch (SocketException e) when (e.SocketErrorCode == SocketError.AddressAlreadyInUse)

51if (SocketError != SocketError.Success) 59protected static SocketException CreateException(SocketError e) 67SocketError == SocketError.Success ? ValueTaskSourceStatus.Succeeded :

421private static bool IsConnectionResetError(SocketError errorCode) 423return errorCode == SocketError.ConnectionReset || 424errorCode == SocketError.Shutdown || 425(errorCode == SocketError.ConnectionAborted && OperatingSystem.IsWindows()); 428private static bool IsConnectionAbortError(SocketError errorCode) 431return errorCode == SocketError.OperationAborted || 432errorCode == SocketError.Interrupted || 433(errorCode == SocketError.InvalidArgument && !OperatingSystem.IsWindows());

25var error = SocketError; 27return error == SocketError.Success 42var error = SocketError; 44return error == SocketError.Success

35var error = SocketError; 37return error == SocketError.Success 69var error = SocketError; 71return error == SocketError.Success

46catch (SocketException e) when (e.SocketErrorCode == SocketError.AddressAlreadyInUse) 82catch (SocketException e) when (e.SocketErrorCode == SocketError.OperationAborted)

25private static readonly FrozenDictionary<SocketError, int> _socketErrorMap; 37var socketErrors = new Dictionary<SocketError, int>(); 39foreach (var socketError in Enum.GetValues<SocketError>())

22.Concat(Enum.GetNames(typeof(SocketError)).ToList()).ToList(); 185var exception = new Exception("test", new SocketException((int)SocketError.TimedOut)); 186var descriptionIndex = _httpDescriptions.FindIndex(x => x.Equals(SocketError.TimedOut.ToString()));

22foreach (var socketError in Enum.GetValues(typeof(SocketError))) 92public void Describe_WithKnownSocketException_ReturnDetails(SocketError socketError)

109if (e.SocketErrorCode == SocketError.ConnectionRefused)

376&& socketException.SocketErrorCode == SocketError.TimedOut)

73&& socketException.SocketErrorCode == SocketError.TimedOut)

1271[assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.Net.Sockets.SocketError))]

761[assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.Net.Sockets.SocketError))]

67case SocketError.AddressAlreadyInUse: 68case SocketError.AddressNotAvailable: 69case SocketError.ConnectionRefused:

334if (e.SocketErrorCode == SocketError.Shutdown) // EPIPE

42[assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.Net.Sockets.SocketError))]

157socketException.SocketErrorCode is SocketError.HostNotFound or SocketError.TryAgain)

110Socket? accepted = args.SocketError == SocketError.Success ? args.AcceptSocket : null;

71_exception = new HttpListenerException((int)SocketError.OperationAborted, SR.net_listener_close);

487exception = new SocketException((int)SocketError.HostNotFound); 519SocketError errorCode = NameResolutionPal.TryGetAddrInfo(hostName, justAddresses, addressFamily, out string? newHostName, out string[] aliases, out IPAddress[] addresses, out int nativeErrorCode); 521if (errorCode != SocketError.Success) 568catch (SocketException ex) when (addressFamily == AddressFamily.InterNetworkV6 && ex.SocketErrorCode == SocketError.HostNotFound) 601SocketError errorCode; 606if (errorCode != SocketError.Success) 634if (errorCode != SocketError.Success) 865catch (SocketException ex) when (family == AddressFamily.InterNetworkV6 && ex.SocketErrorCode == SocketError.HostNotFound) 878catch (SocketException ex) when (family == AddressFamily.InterNetworkV6 && ex.SocketErrorCode == SocketError.HostNotFound) 997private static SocketException CreateException(SocketError error, int nativeError) =>

519lastException = ex.SocketErrorCode == SocketError.TimedOut

155throw new SocketException((int)SocketError.TimedOut);

28private static SocketError GetSocketErrorForNativeError(int error) 33return SocketError.Success; 35return SocketError.TryAgain; 38return SocketError.InvalidArgument; 40return SocketError.NoRecovery; 42return SocketError.AddressFamilyNotSupported; 44return SocketError.HostNotFound; 49return SocketError.SocketError; 52return SocketError.SocketError; 131public static unsafe SocketError TryGetAddrInfo(string name, bool justAddresses, AddressFamily addressFamily, out string? hostName, out string[] aliases, out IPAddress[] addresses, out int nativeErrorCode) 152return SocketError.Success; 155public static unsafe string? TryGetNameInfo(IPAddress addr, out SocketError socketError, out int nativeErrorCode) 190return socketError == SocketError.Success ? Utf8StringMarshaller.ConvertToManaged(buffer) : null;

147SocketError.HostNotFound => "host_not_found", 148SocketError.TryAgain => "try_again", 149SocketError.AddressFamilyNotSupported => "address_family_not_supported", 150SocketError.NoRecovery => "no_recovery",

44internal NetworkInformationException(SocketError socketError) : base((int)socketError)

208catch (SocketException se) when (se.SocketErrorCode == SocketError.OperationAborted)

31internal static unsafe partial global::System.Net.Sockets.SocketError ReceiveSocketError(global::System.Runtime.InteropServices.SafeHandle socket, global::Interop.Sys.MessageHeader* messageHeader) 36global::System.Net.Sockets.SocketError __retVal = default; 58static extern unsafe global::System.Net.Sockets.SocketError __PInvoke(nint __socket_native, global::Interop.Sys.MessageHeader* __messageHeader_native);

13internal static unsafe partial SocketError ReceiveSocketError(SafeHandle socket, MessageHeader* messageHeader);

29throw new SocketException((int)SocketError.AddressFamilyNotSupported);

20internal static SocketError GetSocketErrorForNativeError(Interop.Error errno) => errno switch 22Interop.Error.EACCES => SocketError.AccessDenied, 23Interop.Error.EADDRINUSE => SocketError.AddressAlreadyInUse, 24Interop.Error.EADDRNOTAVAIL => SocketError.AddressNotAvailable, 25Interop.Error.EAFNOSUPPORT => SocketError.AddressFamilyNotSupported, 26Interop.Error.EAGAIN => SocketError.WouldBlock, 27Interop.Error.EALREADY => SocketError.AlreadyInProgress, 28Interop.Error.EBADF => SocketError.OperationAborted, 29Interop.Error.ECANCELED => SocketError.OperationAborted, 30Interop.Error.ECONNABORTED => SocketError.ConnectionAborted, 31Interop.Error.ECONNREFUSED => SocketError.ConnectionRefused, 32Interop.Error.ECONNRESET => SocketError.ConnectionReset, 33Interop.Error.EDESTADDRREQ => SocketError.DestinationAddressRequired, 34Interop.Error.EFAULT => SocketError.Fault, 35Interop.Error.EHOSTDOWN => SocketError.HostDown, 36Interop.Error.ENXIO => SocketError.HostNotFound, // not perfect, but closest match available 37Interop.Error.EHOSTUNREACH => SocketError.HostUnreachable, 38Interop.Error.EINPROGRESS => SocketError.InProgress, 39Interop.Error.EINTR => SocketError.Interrupted, 40Interop.Error.EINVAL => SocketError.InvalidArgument, 41Interop.Error.EISCONN => SocketError.IsConnected, 42Interop.Error.EMFILE => SocketError.TooManyOpenSockets, 43Interop.Error.EMSGSIZE => SocketError.MessageSize, 44Interop.Error.ENETDOWN => SocketError.NetworkDown, 45Interop.Error.ENETRESET => SocketError.NetworkReset, 46Interop.Error.ENETUNREACH => SocketError.NetworkUnreachable, 47Interop.Error.ENFILE => SocketError.TooManyOpenSockets, 48Interop.Error.ENOBUFS => SocketError.NoBufferSpaceAvailable, 49Interop.Error.ENODATA => SocketError.NoData, 50Interop.Error.ENOENT => SocketError.AddressNotAvailable, 51Interop.Error.ENOPROTOOPT => SocketError.ProtocolOption, 52Interop.Error.ENOTCONN => SocketError.NotConnected, 53Interop.Error.ENOTSOCK => SocketError.NotSocket, 54Interop.Error.ENOTSUP => SocketError.OperationNotSupported, 55Interop.Error.EPERM => SocketError.AccessDenied, 56Interop.Error.EPIPE => SocketError.Shutdown, 57Interop.Error.EPFNOSUPPORT => SocketError.ProtocolFamilyNotSupported, 58Interop.Error.EPROTONOSUPPORT => SocketError.ProtocolNotSupported, 59Interop.Error.EPROTOTYPE => SocketError.ProtocolType, 60Interop.Error.ESOCKTNOSUPPORT => SocketError.SocketNotSupported, 61Interop.Error.ESHUTDOWN => SocketError.Disconnecting, 62Interop.Error.SUCCESS => SocketError.Success, 63Interop.Error.ETIMEDOUT => SocketError.TimedOut, 64_ => SocketError.SocketError, // unknown native error, just treat it as a generic SocketError 67private static Interop.Error GetNativeErrorForSocketErrorHelper(SocketError error) => error switch 75SocketError.AccessDenied => Interop.Error.EACCES, // could also have been EPERM 76SocketError.AddressAlreadyInUse => Interop.Error.EADDRINUSE, 77SocketError.AddressNotAvailable => Interop.Error.EADDRNOTAVAIL, 78SocketError.AddressFamilyNotSupported => Interop.Error.EAFNOSUPPORT, 79SocketError.AlreadyInProgress => Interop.Error.EALREADY, 80SocketError.ConnectionAborted => Interop.Error.ECONNABORTED, 81SocketError.ConnectionRefused => Interop.Error.ECONNREFUSED, 82SocketError.ConnectionReset => Interop.Error.ECONNRESET, 83SocketError.DestinationAddressRequired => Interop.Error.EDESTADDRREQ, 84SocketError.Disconnecting => Interop.Error.ESHUTDOWN, 85SocketError.Fault => Interop.Error.EFAULT, 86SocketError.HostDown => Interop.Error.EHOSTDOWN, 87SocketError.HostNotFound => Interop.Error.EHOSTNOTFOUND, 88SocketError.HostUnreachable => Interop.Error.EHOSTUNREACH, 89SocketError.InProgress => Interop.Error.EINPROGRESS, 90SocketError.Interrupted => Interop.Error.EINTR, 91SocketError.InvalidArgument => Interop.Error.EINVAL, 92SocketError.IOPending => Interop.Error.EINPROGRESS, 93SocketError.IsConnected => Interop.Error.EISCONN, 94SocketError.MessageSize => Interop.Error.EMSGSIZE, 95SocketError.NetworkDown => Interop.Error.ENETDOWN, 96SocketError.NetworkReset => Interop.Error.ENETRESET, 97SocketError.NetworkUnreachable => Interop.Error.ENETUNREACH, 98SocketError.NoBufferSpaceAvailable => Interop.Error.ENOBUFS, 99SocketError.NoData => Interop.Error.ENODATA, 100SocketError.NotConnected => Interop.Error.ENOTCONN, 101SocketError.NotSocket => Interop.Error.ENOTSOCK, 102SocketError.OperationAborted => Interop.Error.ECANCELED, 103SocketError.OperationNotSupported => Interop.Error.ENOTSUP, 104SocketError.ProtocolFamilyNotSupported => Interop.Error.EPFNOSUPPORT, 105SocketError.ProtocolNotSupported => Interop.Error.EPROTONOSUPPORT, 106SocketError.ProtocolOption => Interop.Error.ENOPROTOOPT, 107SocketError.ProtocolType => Interop.Error.EPROTOTYPE, 108SocketError.Shutdown => Interop.Error.EPIPE, 109SocketError.SocketNotSupported => Interop.Error.ESOCKTNOSUPPORT, 110SocketError.Success => Interop.Error.SUCCESS, 111SocketError.TimedOut => Interop.Error.ETIMEDOUT, 112SocketError.TooManyOpenSockets => Interop.Error.ENFILE, // could also have been EMFILE 113SocketError.TryAgain => Interop.Error.EAGAIN, // not a perfect mapping, but better than nothing 114SocketError.WouldBlock => Interop.Error.EAGAIN, 115SocketError.SocketError => Interop.Error.ESOCKETERROR, 119internal static Interop.Error GetNativeErrorForSocketError(SocketError error) 130internal static bool TryGetNativeErrorForSocketError(SocketError error, out Interop.Error errno)

278catch (SocketException ex) when (ex.SocketErrorCode == SocketError.TimedOut) 281catch (SocketException ex) when (ex.SocketErrorCode == SocketError.MessageSize) 285catch (SocketException ex) when (ex.SocketErrorCode == SocketError.HostUnreachable) 304SocketError result; 311if (result == SocketError.Success && header.SocketAddressLen > 0) 363catch (SocketException ex) when (ex.SocketErrorCode == SocketError.TimedOut) 366catch (SocketException ex) when (ex.SocketErrorCode == SocketError.MessageSize) 373catch (SocketException ex) when (ex.SocketErrorCode == SocketError.HostUnreachable)

29throw new SocketException((int)SocketError.AddressFamilyNotSupported);

20internal static SocketError GetSocketErrorForNativeError(Interop.Error errno) => errno switch 22Interop.Error.EACCES => SocketError.AccessDenied, 23Interop.Error.EADDRINUSE => SocketError.AddressAlreadyInUse, 24Interop.Error.EADDRNOTAVAIL => SocketError.AddressNotAvailable, 25Interop.Error.EAFNOSUPPORT => SocketError.AddressFamilyNotSupported, 26Interop.Error.EAGAIN => SocketError.WouldBlock, 27Interop.Error.EALREADY => SocketError.AlreadyInProgress, 28Interop.Error.EBADF => SocketError.OperationAborted, 29Interop.Error.ECANCELED => SocketError.OperationAborted, 30Interop.Error.ECONNABORTED => SocketError.ConnectionAborted, 31Interop.Error.ECONNREFUSED => SocketError.ConnectionRefused, 32Interop.Error.ECONNRESET => SocketError.ConnectionReset, 33Interop.Error.EDESTADDRREQ => SocketError.DestinationAddressRequired, 34Interop.Error.EFAULT => SocketError.Fault, 35Interop.Error.EHOSTDOWN => SocketError.HostDown, 36Interop.Error.ENXIO => SocketError.HostNotFound, // not perfect, but closest match available 37Interop.Error.EHOSTUNREACH => SocketError.HostUnreachable, 38Interop.Error.EINPROGRESS => SocketError.InProgress, 39Interop.Error.EINTR => SocketError.Interrupted, 40Interop.Error.EINVAL => SocketError.InvalidArgument, 41Interop.Error.EISCONN => SocketError.IsConnected, 42Interop.Error.EMFILE => SocketError.TooManyOpenSockets, 43Interop.Error.EMSGSIZE => SocketError.MessageSize, 44Interop.Error.ENETDOWN => SocketError.NetworkDown, 45Interop.Error.ENETRESET => SocketError.NetworkReset, 46Interop.Error.ENETUNREACH => SocketError.NetworkUnreachable, 47Interop.Error.ENFILE => SocketError.TooManyOpenSockets, 48Interop.Error.ENOBUFS => SocketError.NoBufferSpaceAvailable, 49Interop.Error.ENODATA => SocketError.NoData, 50Interop.Error.ENOENT => SocketError.AddressNotAvailable, 51Interop.Error.ENOPROTOOPT => SocketError.ProtocolOption, 52Interop.Error.ENOTCONN => SocketError.NotConnected, 53Interop.Error.ENOTSOCK => SocketError.NotSocket, 54Interop.Error.ENOTSUP => SocketError.OperationNotSupported, 55Interop.Error.EPERM => SocketError.AccessDenied, 56Interop.Error.EPIPE => SocketError.Shutdown, 57Interop.Error.EPFNOSUPPORT => SocketError.ProtocolFamilyNotSupported, 58Interop.Error.EPROTONOSUPPORT => SocketError.ProtocolNotSupported, 59Interop.Error.EPROTOTYPE => SocketError.ProtocolType, 60Interop.Error.ESOCKTNOSUPPORT => SocketError.SocketNotSupported, 61Interop.Error.ESHUTDOWN => SocketError.Disconnecting, 62Interop.Error.SUCCESS => SocketError.Success, 63Interop.Error.ETIMEDOUT => SocketError.TimedOut, 64_ => SocketError.SocketError, // unknown native error, just treat it as a generic SocketError 67private static Interop.Error GetNativeErrorForSocketErrorHelper(SocketError error) => error switch 75SocketError.AccessDenied => Interop.Error.EACCES, // could also have been EPERM 76SocketError.AddressAlreadyInUse => Interop.Error.EADDRINUSE, 77SocketError.AddressNotAvailable => Interop.Error.EADDRNOTAVAIL, 78SocketError.AddressFamilyNotSupported => Interop.Error.EAFNOSUPPORT, 79SocketError.AlreadyInProgress => Interop.Error.EALREADY, 80SocketError.ConnectionAborted => Interop.Error.ECONNABORTED, 81SocketError.ConnectionRefused => Interop.Error.ECONNREFUSED, 82SocketError.ConnectionReset => Interop.Error.ECONNRESET, 83SocketError.DestinationAddressRequired => Interop.Error.EDESTADDRREQ, 84SocketError.Disconnecting => Interop.Error.ESHUTDOWN, 85SocketError.Fault => Interop.Error.EFAULT, 86SocketError.HostDown => Interop.Error.EHOSTDOWN, 87SocketError.HostNotFound => Interop.Error.EHOSTNOTFOUND, 88SocketError.HostUnreachable => Interop.Error.EHOSTUNREACH, 89SocketError.InProgress => Interop.Error.EINPROGRESS, 90SocketError.Interrupted => Interop.Error.EINTR, 91SocketError.InvalidArgument => Interop.Error.EINVAL, 92SocketError.IOPending => Interop.Error.EINPROGRESS, 93SocketError.IsConnected => Interop.Error.EISCONN, 94SocketError.MessageSize => Interop.Error.EMSGSIZE, 95SocketError.NetworkDown => Interop.Error.ENETDOWN, 96SocketError.NetworkReset => Interop.Error.ENETRESET, 97SocketError.NetworkUnreachable => Interop.Error.ENETUNREACH, 98SocketError.NoBufferSpaceAvailable => Interop.Error.ENOBUFS, 99SocketError.NoData => Interop.Error.ENODATA, 100SocketError.NotConnected => Interop.Error.ENOTCONN, 101SocketError.NotSocket => Interop.Error.ENOTSOCK, 102SocketError.OperationAborted => Interop.Error.ECANCELED, 103SocketError.OperationNotSupported => Interop.Error.ENOTSUP, 104SocketError.ProtocolFamilyNotSupported => Interop.Error.EPFNOSUPPORT, 105SocketError.ProtocolNotSupported => Interop.Error.EPROTONOSUPPORT, 106SocketError.ProtocolOption => Interop.Error.ENOPROTOOPT, 107SocketError.ProtocolType => Interop.Error.EPROTOTYPE, 108SocketError.Shutdown => Interop.Error.EPIPE, 109SocketError.SocketNotSupported => Interop.Error.ESOCKTNOSUPPORT, 110SocketError.Success => Interop.Error.SUCCESS, 111SocketError.TimedOut => Interop.Error.ETIMEDOUT, 112SocketError.TooManyOpenSockets => Interop.Error.ENFILE, // could also have been EMFILE 113SocketError.TryAgain => Interop.Error.EAGAIN, // not a perfect mapping, but better than nothing 114SocketError.WouldBlock => Interop.Error.EAGAIN, 115SocketError.SocketError => Interop.Error.ESOCKETERROR, 119internal static Interop.Error GetNativeErrorForSocketError(SocketError error) 130internal static bool TryGetNativeErrorForSocketError(SocketError error, out Interop.Error errno)

773private void ThrowSocketOperationNotSupported() => throw new SocketException(SocketError.OperationNotSupported, SR.Format(SR.net_SocketException_OperationNotSupported, AddressFamily)); 776private static void ThrowSocketOperationNotSupportedReadOnly() => throw new SocketException(SocketError.OperationNotSupported, SR.net_SocketException_OperationNotSupported_ReadOnlyIPAddress);

59throw new FormatException(SR.dns_bad_ip_address, new SocketException(SocketError.InvalidArgument));

16private readonly SocketError _errorCode; 19public SocketException(int errorCode) : this((SocketError)errorCode) 34public SocketException(int errorCode, string? message) : this((SocketError)errorCode, message) 39internal SocketException(SocketError socketError) : base(GetNativeErrorForSocketError(socketError)) 45internal SocketException(SocketError socketError, string? message) : base(GetNativeErrorForSocketError(socketError), message) 52public SocketError SocketErrorCode => _errorCode;

15internal SocketException(SocketError errorCode, uint platformError) : base((int)platformError) 24private static int GetNativeErrorForSocketError(SocketError error)

29throw new SocketException((int)SocketError.AddressFamilyNotSupported);

83if (status == QUIC_STATUS_INVALID_ADDRESS) return new SocketException((int)SocketError.AddressNotAvailable); 84if (status == QUIC_STATUS_ADDRESS_IN_USE) return new SocketException((int)SocketError.AddressAlreadyInUse); 85if (status == QUIC_STATUS_UNREACHABLE) return new SocketException((int)SocketError.HostUnreachable); 86if (status == QUIC_STATUS_ADDRESS_NOT_AVAILABLE) return new SocketException((int)SocketError.AddressFamilyNotSupported);

401throw new SocketException((int)SocketError.HostNotFound);

920sEx.SocketErrorCode == SocketError.TimedOut) 939if (se.SocketErrorCode == SocketError.HostNotFound)

115case SocketError.NoData: 116case SocketError.HostNotFound:

24/// <see cref="System.Net.Sockets.SocketError.WouldBlock"/> mid-write; retry the

1912private bool TryDrainPendingToSocket(out SocketError lastError) 1914lastError = SocketError.Success; 1920out SocketError err); 1968if (!TryDrainPendingToSocket(out SocketError drainErr)) 1970if (drainErr == SocketError.WouldBlock) 1997out SocketError sendErr); 2003if (sendErr == SocketError.WouldBlock) 2024out SocketError recvErr); 2030if (recvErr == SocketError.WouldBlock) 2116out SocketError recvErr); 2122if (recvErr == SocketError.WouldBlock) 2155if (!TryDrainPendingToSocket(out SocketError drainErr)) 2157if (drainErr == SocketError.WouldBlock) 2192out SocketError sendErr); 2198if (sendErr == SocketError.WouldBlock) 2245if (!TryDrainPendingToSocket(out SocketError leftoverErr)) 2247if (leftoverErr == SocketError.WouldBlock) 2267out SocketError sendErr); 2273if (sendErr == SocketError.WouldBlock)

29throw new SocketException((int)SocketError.AddressFamilyNotSupported);

20internal static SocketError GetSocketErrorForNativeError(Interop.Error errno) => errno switch 22Interop.Error.EACCES => SocketError.AccessDenied, 23Interop.Error.EADDRINUSE => SocketError.AddressAlreadyInUse, 24Interop.Error.EADDRNOTAVAIL => SocketError.AddressNotAvailable, 25Interop.Error.EAFNOSUPPORT => SocketError.AddressFamilyNotSupported, 26Interop.Error.EAGAIN => SocketError.WouldBlock, 27Interop.Error.EALREADY => SocketError.AlreadyInProgress, 28Interop.Error.EBADF => SocketError.OperationAborted, 29Interop.Error.ECANCELED => SocketError.OperationAborted, 30Interop.Error.ECONNABORTED => SocketError.ConnectionAborted, 31Interop.Error.ECONNREFUSED => SocketError.ConnectionRefused, 32Interop.Error.ECONNRESET => SocketError.ConnectionReset, 33Interop.Error.EDESTADDRREQ => SocketError.DestinationAddressRequired, 34Interop.Error.EFAULT => SocketError.Fault, 35Interop.Error.EHOSTDOWN => SocketError.HostDown, 36Interop.Error.ENXIO => SocketError.HostNotFound, // not perfect, but closest match available 37Interop.Error.EHOSTUNREACH => SocketError.HostUnreachable, 38Interop.Error.EINPROGRESS => SocketError.InProgress, 39Interop.Error.EINTR => SocketError.Interrupted, 40Interop.Error.EINVAL => SocketError.InvalidArgument, 41Interop.Error.EISCONN => SocketError.IsConnected, 42Interop.Error.EMFILE => SocketError.TooManyOpenSockets, 43Interop.Error.EMSGSIZE => SocketError.MessageSize, 44Interop.Error.ENETDOWN => SocketError.NetworkDown, 45Interop.Error.ENETRESET => SocketError.NetworkReset, 46Interop.Error.ENETUNREACH => SocketError.NetworkUnreachable, 47Interop.Error.ENFILE => SocketError.TooManyOpenSockets, 48Interop.Error.ENOBUFS => SocketError.NoBufferSpaceAvailable, 49Interop.Error.ENODATA => SocketError.NoData, 50Interop.Error.ENOENT => SocketError.AddressNotAvailable, 51Interop.Error.ENOPROTOOPT => SocketError.ProtocolOption, 52Interop.Error.ENOTCONN => SocketError.NotConnected, 53Interop.Error.ENOTSOCK => SocketError.NotSocket, 54Interop.Error.ENOTSUP => SocketError.OperationNotSupported, 55Interop.Error.EPERM => SocketError.AccessDenied, 56Interop.Error.EPIPE => SocketError.Shutdown, 57Interop.Error.EPFNOSUPPORT => SocketError.ProtocolFamilyNotSupported, 58Interop.Error.EPROTONOSUPPORT => SocketError.ProtocolNotSupported, 59Interop.Error.EPROTOTYPE => SocketError.ProtocolType, 60Interop.Error.ESOCKTNOSUPPORT => SocketError.SocketNotSupported, 61Interop.Error.ESHUTDOWN => SocketError.Disconnecting, 62Interop.Error.SUCCESS => SocketError.Success, 63Interop.Error.ETIMEDOUT => SocketError.TimedOut, 64_ => SocketError.SocketError, // unknown native error, just treat it as a generic SocketError 67private static Interop.Error GetNativeErrorForSocketErrorHelper(SocketError error) => error switch 75SocketError.AccessDenied => Interop.Error.EACCES, // could also have been EPERM 76SocketError.AddressAlreadyInUse => Interop.Error.EADDRINUSE, 77SocketError.AddressNotAvailable => Interop.Error.EADDRNOTAVAIL, 78SocketError.AddressFamilyNotSupported => Interop.Error.EAFNOSUPPORT, 79SocketError.AlreadyInProgress => Interop.Error.EALREADY, 80SocketError.ConnectionAborted => Interop.Error.ECONNABORTED, 81SocketError.ConnectionRefused => Interop.Error.ECONNREFUSED, 82SocketError.ConnectionReset => Interop.Error.ECONNRESET, 83SocketError.DestinationAddressRequired => Interop.Error.EDESTADDRREQ, 84SocketError.Disconnecting => Interop.Error.ESHUTDOWN, 85SocketError.Fault => Interop.Error.EFAULT, 86SocketError.HostDown => Interop.Error.EHOSTDOWN, 87SocketError.HostNotFound => Interop.Error.EHOSTNOTFOUND, 88SocketError.HostUnreachable => Interop.Error.EHOSTUNREACH, 89SocketError.InProgress => Interop.Error.EINPROGRESS, 90SocketError.Interrupted => Interop.Error.EINTR, 91SocketError.InvalidArgument => Interop.Error.EINVAL, 92SocketError.IOPending => Interop.Error.EINPROGRESS, 93SocketError.IsConnected => Interop.Error.EISCONN, 94SocketError.MessageSize => Interop.Error.EMSGSIZE, 95SocketError.NetworkDown => Interop.Error.ENETDOWN, 96SocketError.NetworkReset => Interop.Error.ENETRESET, 97SocketError.NetworkUnreachable => Interop.Error.ENETUNREACH, 98SocketError.NoBufferSpaceAvailable => Interop.Error.ENOBUFS, 99SocketError.NoData => Interop.Error.ENODATA, 100SocketError.NotConnected => Interop.Error.ENOTCONN, 101SocketError.NotSocket => Interop.Error.ENOTSOCK, 102SocketError.OperationAborted => Interop.Error.ECANCELED, 103SocketError.OperationNotSupported => Interop.Error.ENOTSUP, 104SocketError.ProtocolFamilyNotSupported => Interop.Error.EPFNOSUPPORT, 105SocketError.ProtocolNotSupported => Interop.Error.EPROTONOSUPPORT, 106SocketError.ProtocolOption => Interop.Error.ENOPROTOOPT, 107SocketError.ProtocolType => Interop.Error.EPROTOTYPE, 108SocketError.Shutdown => Interop.Error.EPIPE, 109SocketError.SocketNotSupported => Interop.Error.ESOCKTNOSUPPORT, 110SocketError.Success => Interop.Error.SUCCESS, 111SocketError.TimedOut => Interop.Error.ETIMEDOUT, 112SocketError.TooManyOpenSockets => Interop.Error.ENFILE, // could also have been EMFILE 113SocketError.TryAgain => Interop.Error.EAGAIN, // not a perfect mapping, but better than nothing 114SocketError.WouldBlock => Interop.Error.EAGAIN, 115SocketError.SocketError => Interop.Error.ESOCKETERROR, 119internal static Interop.Error GetNativeErrorForSocketError(SocketError error) 130internal static bool TryGetNativeErrorForSocketError(SocketError error, out Interop.Error errno)

13if (SocketErrorPal.TryGetNativeErrorForSocketError((SocketError)socketError, out Interop.Error interopErr))

152ret = !OwnsHandle || DoCloseHandle(abortive) == SocketError.Success;

90internal void RegisterConnectResult(SocketError error) 94case SocketError.Success: 95case SocketError.WouldBlock: 252private unsafe SocketError DoCloseHandle(bool abortive)

42SocketError errorCode = SocketPal.GetLingerOption(this, out lingerOption); 43if (errorCode != SocketError.Success) 71SocketError errorCode = SocketPal.GetSockOpt(this, level, name, out values[i]); 72if (errorCode != SocketError.Success) 90SocketError errorCode = SocketPal.SetLingerOption(this, lingerOption); 91if (NetEventSource.Log.IsEnabled() && errorCode != SocketError.Success) NetEventSource.Info(this, $"SetLingerOption returned errorCode:{errorCode}"); 103SocketError errorCode = SocketPal.SetSockOpt(this, level, name, values[i]); 104if (NetEventSource.Log.IsEnabled() && errorCode != SocketError.Success) NetEventSource.Info(this, $"GetSockOpt({level},{name}) returned errorCode:{errorCode}");

86SocketError errorCode = SocketPal.CreateSocket(addressFamily, socketType, protocolType, out _handle); 87if (errorCode != SocketError.Success) 146if (SocketPal.GetSockName(handle, bufferPtr, &bufferLength) != SocketError.Success) 189case SocketError.Success: 216case SocketError.InvalidArgument: 281SocketError errorCode = SocketPal.GetAvailable(_handle, out argp); 286if (errorCode != SocketError.Success) 319SocketError errorCode = SocketPal.GetSockName(_handle, ptr, &size); 320if (errorCode != SocketError.Success) 362SocketError errorCode = SocketPal.GetPeerName( 366if (errorCode != SocketError.Success) 422SocketError errorCode = InternalSetBlocking(value, out current); 424if (errorCode != SocketError.Success) 809UpdateStatusAfterSocketErrorAndThrowException(SocketError.InvalidArgument); 813SocketError errorCode = SocketPal.Bind( 819if (errorCode != SocketError.Success) 1018SocketError errorCode = SocketPal.Listen(_handle, backlog); 1021if (errorCode != SocketError.Success) 1059SocketError errorCode; 1072SocketsTelemetry.Log.AfterAccept(SocketError.Interrupted, ex.Message); 1077if (errorCode != SocketError.Success) 1088SocketsTelemetry.Log.AfterAccept(SocketError.Success); 1132SocketError errorCode; 1134if (errorCode != SocketError.Success) 1141public int Send(IList<ArraySegment<byte>> buffers, SocketFlags socketFlags, out SocketError errorCode) 1159if (errorCode != SocketError.Success) 1183SocketError errorCode; 1185if (errorCode != SocketError.Success) 1192public int Send(byte[] buffer, int offset, int size, SocketFlags socketFlags, out SocketError errorCode) 1207if (errorCode != SocketError.Success) 1237int bytesTransferred = Send(buffer, socketFlags, out SocketError errorCode); 1238return errorCode == SocketError.Success ? 1243public int Send(ReadOnlySpan<byte> buffer, SocketFlags socketFlags, out SocketError errorCode) 1253if (errorCode != SocketError.Success) 1367SocketError errorCode = SocketPal.SendTo(_handle, buffer, offset, size, socketFlags, socketAddress.Buffer.Slice(0, socketAddress.Size), out bytesTransferred); 1370if (errorCode != SocketError.Success) 1449SocketError errorCode = SocketPal.SendTo(_handle, buffer, socketFlags, socketAddress.Buffer.Slice(0, socketAddress.Size), out bytesTransferred); 1452if (errorCode != SocketError.Success) 1490SocketError errorCode = SocketPal.SendTo(_handle, buffer, socketFlags, socketAddress.Buffer.Slice(0, socketAddress.Size), out bytesTransferred); 1493if (errorCode != SocketError.Success) 1535SocketError errorCode; 1537if (errorCode != SocketError.Success) 1544public int Receive(byte[] buffer, int offset, int size, SocketFlags socketFlags, out SocketError errorCode) 1558if (errorCode != SocketError.Success) 1582int bytesTransferred = Receive(buffer, socketFlags, out SocketError errorCode); 1583return errorCode == SocketError.Success ? 1588public int Receive(Span<byte> buffer, SocketFlags socketFlags, out SocketError errorCode) 1600if (errorCode != SocketError.Success) 1626SocketError errorCode; 1628if (errorCode != SocketError.Success) 1635public int Receive(IList<ArraySegment<byte>> buffers, SocketFlags socketFlags, out SocketError errorCode) 1656if (errorCode != SocketError.Success) 1695SocketError errorCode = SocketPal.ReceiveMessageFrom(this, _handle, buffer, offset, size, ref socketFlags, socketAddress, out receiveAddress, out ipPacketInformation, out bytesTransferred); 1699if (errorCode != SocketError.Success && errorCode != SocketError.MessageSize) 1706if (errorCode == SocketError.Success && SocketType == SocketType.Dgram) SocketsTelemetry.Log.DatagramReceived(); 1782SocketError errorCode = SocketPal.ReceiveMessageFrom(this, _handle, buffer, ref socketFlags, socketAddress, out receiveAddress, out ipPacketInformation, out bytesTransferred); 1786if (errorCode != SocketError.Success && errorCode != SocketError.MessageSize) 1793if (errorCode == SocketError.Success && SocketType == SocketType.Dgram) SocketsTelemetry.Log.DatagramReceived(); 1837SocketError errorCode = SocketPal.ReceiveFrom(_handle, buffer, offset, size, socketFlags, socketAddress.Buffer, out int socketAddressLength, out bytesTransferred); 1842if (errorCode != SocketError.Success) 1848if (socketException.SocketErrorCode != SocketError.MessageSize) 1961SocketError errorCode = SocketPal.ReceiveFrom(_handle, buffer, socketFlags, socketAddress.Buffer, out int socketAddressLength, out bytesTransferred); 1966if (errorCode != SocketError.Success) 1972if (socketException.SocketErrorCode != SocketError.MessageSize) 2039SocketError errorCode = SocketPal.ReceiveFrom(_handle, buffer, socketFlags, receivedAddress.Buffer, out int socketAddressSize, out bytesTransferred); 2042if (errorCode != SocketError.Success) 2070SocketError errorCode = SocketPal.WindowsIoctl(_handle, ioControlCode, optionInValue, optionOutValue, out realOptionLength); 2075if (errorCode != SocketError.Success) 2104SocketError errorCode = SocketPal.SetSockOpt(_handle, optionLevel, optionName, optionValue); 2109if (errorCode != SocketError.Success) 2182SocketError errorCode = SocketPal.SetRawSockOpt(_handle, optionLevel, optionName, optionValue); 2186if (errorCode != SocketError.Success) 2213SocketError errorCode = SocketPal.GetSockOpt( 2222if (errorCode != SocketError.Success) 2237SocketError errorCode = SocketPal.GetSockOpt( 2247if (errorCode != SocketError.Success) 2261SocketError errorCode = SocketPal.GetSockOpt( 2271if (errorCode != SocketError.Success) 2303SocketError errorCode = SocketPal.GetRawSockOpt(_handle, optionLevel, optionName, optionValue, ref realOptionLength); 2307if (errorCode != SocketError.Success) 2359SocketError errorCode = SocketPal.Poll(_handle, microSeconds, mode, out status); 2363if (errorCode != SocketError.Success) 2423SocketError errorCode = SocketPal.Select(checkRead, checkWrite, checkError, microSeconds); 2426if (errorCode != SocketError.Success) 2480SocketError errorCode; 2487if (errorCode != SocketError.Success) 2509public IAsyncResult? BeginSend(byte[] buffer, int offset, int size, SocketFlags socketFlags, out SocketError errorCode, AsyncCallback? callback, object? state) 2523errorCode = SocketError.Success; 2536public IAsyncResult? BeginSend(IList<ArraySegment<byte>> buffers, SocketFlags socketFlags, out SocketError errorCode, AsyncCallback? callback, object? state) 2549errorCode = SocketError.Success; 2555public int EndSend(IAsyncResult asyncResult, out SocketError errorCode) => 2606public IAsyncResult? BeginReceive(byte[] buffer, int offset, int size, SocketFlags socketFlags, out SocketError errorCode, AsyncCallback? callback, object? state) 2620errorCode = SocketError.Success; 2632public IAsyncResult? BeginReceive(IList<ArraySegment<byte>> buffers, SocketFlags socketFlags, out SocketError errorCode, AsyncCallback? callback, object? state) 2645errorCode = SocketError.Success; 2651public int EndReceive(IAsyncResult asyncResult, out SocketError errorCode) => 2654private static int EndSendReceive(IAsyncResult asyncResult, out SocketError errorCode) 2664errorCode = SocketError.Success; 2824SocketError errorCode = SocketPal.Shutdown(_handle, _isConnected, _isDisconnected, how); 2829if (errorCode != SocketError.Success && errorCode != SocketError.NotSocket) 2871SocketError socketError; 2878SocketsTelemetry.Log.AfterAccept(SocketError.Interrupted, ex.Message); 2885return socketError == SocketError.IOPending; 2964SocketsTelemetry.Log.AfterConnect(SocketError.NotSocket, e.ConnectActivity, ex.Message); 2974SocketError socketError = canUseConnectEx ? 2977pending = socketError == SocketError.IOPending; 2981SocketsTelemetry.Log.AfterConnect(SocketError.NotSocket, e.ConnectActivity, ex.Message); 3064SocketError socketError; 3076return socketError == SocketError.IOPending; 3089SocketError socketError; 3101return socketError == SocketError.IOPending; 3145SocketError socketError; 3157bool pending = (socketError == SocketError.IOPending); 3193SocketError socketError; 3205return socketError == SocketError.IOPending; 3218SocketError socketError; 3230return socketError == SocketError.IOPending; 3251SocketError socketError; 3263return socketError == SocketError.IOPending; 3300SocketError socketError; 3320return socketError == SocketError.IOPending; 3371SocketError errorCode; 3378SocketsTelemetry.Log.AfterConnect(SocketError.NotSocket, activity, ex.Message); 3383if (errorCode != SocketError.Success) 3396SocketsTelemetry.Log.AfterConnect(SocketError.Success, activity); 3452SocketError errorCode; 3482if (errorCode != SocketError.Success) 3492if (errorCode != (SocketError)0) 3504if (errorCode != SocketError.Success || dataAvailable != 0) 3616UpdateStatusAfterSocketOptionErrorAndThrowException(SocketError.ProtocolOption); 3626SocketError errorCode; 3643errorCode == SocketError.Success) 3654if (errorCode != SocketError.Success) 3662SocketError errorCode = SocketPal.SetMulticastOption(_handle, optionName, MR); 3667if (errorCode != SocketError.Success) 3676SocketError errorCode = SocketPal.SetIPv6MulticastOption(_handle, optionName, MR); 3681if (errorCode != SocketError.Success) 3691SocketError errorCode = SocketPal.SetLingerOption(_handle, lref); 3696if (errorCode != SocketError.Success) 3707SocketError errorCode = SocketPal.GetLingerOption(_handle, out lingerOption); 3712if (errorCode != SocketError.Success) 3723SocketError errorCode = SocketPal.GetMulticastOption(_handle, optionName, out multicastOption); 3728if (errorCode != SocketError.Success) 3740SocketError errorCode = SocketPal.GetIPv6MulticastOption(_handle, optionName, out multicastOption); 3745if (errorCode != SocketError.Success) 3755private SocketError InternalSetBlocking(bool desired, out bool current) 3760return SocketError.Success; 3765SocketError errorCode; 3772errorCode = SocketError.NotSocket; 3779if (errorCode == SocketError.Success) 3917private void UpdateStatusAfterSocketOptionErrorAndThrowException(SocketError error, [CallerMemberName] string? callerName = null) 3920bool disconnectOnFailure = error != SocketError.ProtocolOption && 3921error != SocketError.OperationNotSupported; 3925private void UpdateStatusAfterSocketErrorAndThrowException(SocketError error, bool disconnectOnFailure = true, [CallerMemberName] string? callerName = null) 3942internal void UpdateStatusAfterSocketError(SocketError errorCode, bool disconnectOnFailure = true) 3948if (disconnectOnFailure && _isConnected && (_handle.IsInvalid || (errorCode != SocketError.WouldBlock && 3949errorCode != SocketError.IOPending && errorCode != SocketError.NoBufferSpaceAvailable && 3950errorCode != SocketError.TimedOut && errorCode != SocketError.OperationAborted))) 3958private bool CheckErrorAndUpdateStatus(SocketError errorCode) 3960if (errorCode == SocketError.Success || errorCode == SocketError.IOPending) 4010private void UpdateReceiveSocketErrorForDisposed(ref SocketError socketError, int bytesTransferred) 4017socketError = IsConnectionOriented ? SocketError.ConnectionAborted : SocketError.Interrupted; 4021private void UpdateSendSocketErrorForDisposed(ref SocketError socketError) 4025socketError = IsConnectionOriented ? SocketError.ConnectionAborted : SocketError.Interrupted; 4029private void UpdateConnectSocketErrorForDisposed(ref SocketError socketError) 4033socketError = SocketError.NotSocket; 4037private void UpdateAcceptSocketErrorForDisposed(ref SocketError socketError) 4041socketError = SocketError.Interrupted; 4054throw new SocketException((int)SocketError.IsConnected); 4075private static SocketError GetSocketErrorFromFaultedTask(Task t) 4081return SocketError.OperationAborted; 4088ObjectDisposedException => SocketError.OperationAborted, 4089OperationCanceledException => SocketError.OperationAborted, 4090_ => SocketError.SocketError

162throw new SocketException((int)SocketError.IsConnected); 852if (saea.SocketError == SocketError.Success) 875SocketError error = saea.SocketError; 890if (error == SocketError.Success) 901private static Exception GetException(SocketError error, bool wrapExceptionsInIOExceptions = false) 1030SocketError error = SocketError; 1036return error == SocketError.Success ? 1052SocketError error = SocketError; 1056return error == SocketError.Success ? 1071SocketError error = SocketError; 1075return error == SocketError.Success ? 1089SocketError error = SocketError; 1093return error == SocketError.Success ? 1110SocketError error = SocketError; 1114return error == SocketError.Success ? 1130SocketError error = SocketError; 1134return error == SocketError.Success ? 1147SocketError error = SocketError; 1151return error == SocketError.Success ? 1164SocketError error = SocketError; 1168return error == SocketError.Success ? 1182SocketError error = SocketError; 1186return error == SocketError.Success ? 1207SocketError error = SocketError; 1211return error == SocketError.Success ? 1224SocketError error = SocketError; 1228return error == SocketError.Success ? 1254SocketError error = SocketError; 1260if (error != SocketError.Success) 1274SocketError error = SocketError; 1279if (error != SocketError.Success) 1292SocketError error = SocketError; 1300if (error != SocketError.Success) 1314SocketError error = SocketError; 1321if (error != SocketError.Success) 1336SocketError error = SocketError; 1345if (error != SocketError.Success) 1355private void ThrowException(SocketError error, CancellationToken cancellationToken) 1360if (error is SocketError.OperationAborted or SocketError.ConnectionAborted) 1368private Exception CreateException(SocketError error, bool forAsyncThrow = true)

73throw new SocketException((int)SocketError.NotSocket); 81throw new SocketException((int)SocketError.NotSocket); 124SocketError errorCode = ReplaceHandle(); 125if (errorCode != SocketError.Success) 145return ReplaceHandle() == SocketError.Success; 148internal unsafe SocketError ReplaceHandle() 158SocketError errorCode = SocketPal.CreateSocket(_addressFamily, _socketType, _protocolType, out SafeSocketHandle newHandle); 163if (errorCode != SocketError.Success) 177return SocketError.Success; 192throw new SocketException((int)SocketError.InvalidArgument); 220SocketError errorCode = SocketError.Success; 241if (errorCode != SocketError.Success)

130public SocketError ErrorCode; 248ErrorCode = SocketError.OperationAborted; 314ErrorCode = SocketError.OperationAborted; 359public Action<int, Memory<byte>, SocketFlags, SocketError>? Callback { get; set; } 382SocketError ec = ErrorCode; 410SocketError ec = ErrorCode; 443public Action<int, Memory<byte>, SocketFlags, SocketError>? Callback { get; set; } 464ErrorCode = SocketError.Success; 479if (completed && ErrorCode == SocketError.Success) 494SocketError ec = ErrorCode; 514if (completed && ErrorCode == SocketError.Success) 527SocketError ec = ErrorCode; 548if (completed && ErrorCode == SocketError.Success) 570public Action<int, Memory<byte>, SocketFlags, IPPacketInformation, SocketError>? Callback { get; set; } 575if (completed && ErrorCode == SocketError.Success) 600public Action<int, Memory<byte>, SocketFlags, IPPacketInformation, SocketError>? Callback { get; set; } 605if (completed && ErrorCode == SocketError.Success) 622public Action<IntPtr, Memory<byte>, SocketError>? Callback { get; set; } 627Debug.Assert(ErrorCode == SocketError.Success || AcceptedFileDescriptor == (IntPtr)(-1), $"Unexpected values: ErrorCode={ErrorCode}, AcceptedFileDescriptor={AcceptedFileDescriptor}"); 628if (ErrorCode == SocketError.Success) 640SocketError ec = ErrorCode; 660if (result && ErrorCode == SocketError.Success && Buffer.Length > 0) 662SocketError error = context.SendToAsync(Buffer, 0, Buffer.Length, SocketFlags.None, Memory<byte>.Empty, ref BytesTransferred, Callback!, default); 663if (error != SocketError.Success && error != SocketError.IOPending) 676SocketError ec = ErrorCode; 679if (buffer.Length == 0 || ec != SocketError.Success) 700public Action<long, SocketError>? Callback { get; set; } 1448operation.ErrorCode = SocketError.TimedOut; 1453private bool ShouldRetrySyncOperation(out SocketError errorCode) 1457errorCode = SocketError.Success; // Will be ignored 1462errorCode = SocketError.TimedOut; 1470public SocketError Accept(Memory<byte> socketAddress, out int socketAddressLen, out IntPtr acceptedFd) 1474SocketError errorCode; 1479Debug.Assert(errorCode == SocketError.Success || acceptedFd == (IntPtr)(-1), $"Unexpected values: errorCode={errorCode}, acceptedFd={acceptedFd}"); 1495public SocketError AcceptAsync(Memory<byte> socketAddress, out int socketAddressLen, out IntPtr acceptedFd, Action<IntPtr, Memory<byte>, SocketError> callback, CancellationToken cancellationToken) 1502SocketError errorCode; 1507Debug.Assert(errorCode == SocketError.Success || acceptedFd == (IntPtr)(-1), $"Unexpected values: errorCode={errorCode}, acceptedFd={acceptedFd}"); 1528return SocketError.IOPending; 1531public SocketError Connect(Memory<byte> socketAddress) 1540SocketError errorCode; 1560public SocketError ConnectAsync(Memory<byte> socketAddress, Action<int, Memory<byte>, SocketFlags, SocketError> callback, Memory<byte> buffer, out int sentBytes, CancellationToken cancellationToken) 1570SocketError errorCode; 1583if (errorCode == SocketError.Success && remains > 0) 1588if (remains == 0 || errorCode != SocketError.IOPending) 1605if (operation.ErrorCode == SocketError.Success) 1610if (buffer.Length == 0 || operation.ErrorCode != SocketError.Success) 1618return SocketError.IOPending; 1621public SocketError Receive(Memory<byte> buffer, SocketFlags flags, int timeout, out int bytesReceived) 1626public SocketError Receive(Span<byte> buffer, SocketFlags flags, int timeout, out int bytesReceived) 1631public SocketError ReceiveAsync(Memory<byte> buffer, SocketFlags flags, out int bytesReceived, out SocketFlags receivedFlags, Action<int, Memory<byte>, SocketFlags, SocketError> callback, CancellationToken cancellationToken) 1636public SocketError ReceiveFrom(Memory<byte> buffer, ref SocketFlags flags, Memory<byte> socketAddress, out int socketAddressLen, int timeout, out int bytesReceived) 1643SocketError errorCode; 1669public unsafe SocketError ReceiveFrom(Span<byte> buffer, ref SocketFlags flags, Memory<byte> socketAddress, out int socketAddressLen, int timeout, out int bytesReceived) 1674SocketError errorCode; 1703public SocketError ReceiveAsync(Memory<byte> buffer, SocketFlags flags, out int bytesReceived, Action<int, Memory<byte>, SocketFlags, SocketError> callback, CancellationToken cancellationToken = default) 1707SocketError errorCode; 1732return SocketError.IOPending; 1735public SocketError ReceiveFromAsync(Memory<byte> buffer, SocketFlags flags, Memory<byte> socketAddress, out int socketAddressLen, out int bytesReceived, out SocketFlags receivedFlags, Action<int, Memory<byte>, SocketFlags, SocketError> callback, CancellationToken cancellationToken = default) 1739SocketError errorCode; 1768return SocketError.IOPending; 1771public SocketError Receive(IList<ArraySegment<byte>> buffers, SocketFlags flags, int timeout, out int bytesReceived) 1776public SocketError ReceiveAsync(IList<ArraySegment<byte>> buffers, SocketFlags flags, out int bytesReceived, out SocketFlags receivedFlags, Action<int, Memory<byte>, SocketFlags, SocketError> callback) 1781public SocketError ReceiveFrom(IList<ArraySegment<byte>> buffers, ref SocketFlags flags, Memory<byte> socketAddress, out int socketAddressLen, int timeout, out int bytesReceived) 1788SocketError errorCode; 1813public SocketError ReceiveFromAsync(IList<ArraySegment<byte>> buffers, SocketFlags flags, Memory<byte> socketAddress, out int socketAddressLen, out int bytesReceived, out SocketFlags receivedFlags, Action<int, Memory<byte>, SocketFlags, SocketError> callback) 1817SocketError errorCode; 1846return SocketError.IOPending; 1849public SocketError ReceiveMessageFrom( 1857SocketError errorCode; 1886public unsafe SocketError ReceiveMessageFrom( 1894SocketError errorCode; 1926public SocketError ReceiveMessageFromAsync(Memory<byte> buffer, IList<ArraySegment<byte>>? buffers, SocketFlags flags, Memory<byte> socketAddress, out int socketAddressLen, bool isIPv4, bool isIPv6, out int bytesReceived, out SocketFlags receivedFlags, out IPPacketInformation ipPacketInformation, Action<int, Memory<byte>, SocketFlags, IPPacketInformation, SocketError> callback, CancellationToken cancellationToken = default) 1930SocketError errorCode; 1962return SocketError.IOPending; 1965public SocketError Send(ReadOnlySpan<byte> buffer, SocketFlags flags, int timeout, out int bytesSent) => 1968public SocketError Send(byte[] buffer, int offset, int count, SocketFlags flags, int timeout, out int bytesSent) 1973public SocketError SendAsync(Memory<byte> buffer, int offset, int count, SocketFlags flags, out int bytesSent, Action<int, Memory<byte>, SocketFlags, SocketError> callback, CancellationToken cancellationToken) 1979public SocketError SendTo(byte[] buffer, int offset, int count, SocketFlags flags, Memory<byte> socketAddress, int timeout, out int bytesSent) 1986SocketError errorCode; 2011public unsafe SocketError SendTo(ReadOnlySpan<byte> buffer, SocketFlags flags, Memory<byte> socketAddress, int timeout, out int bytesSent) 2018SocketError errorCode; 2047public SocketError SendToAsync(Memory<byte> buffer, int offset, int count, SocketFlags flags, Memory<byte> socketAddress, ref int bytesSent, Action<int, Memory<byte>, SocketFlags, SocketError> callback, CancellationToken cancellationToken = default) 2051SocketError errorCode; 2077return SocketError.IOPending; 2080public SocketError Send(IList<ArraySegment<byte>> buffers, SocketFlags flags, int timeout, out int bytesSent) 2085public SocketError SendAsync(IList<ArraySegment<byte>> buffers, SocketFlags flags, out int bytesSent, Action<int, Memory<byte>, SocketFlags, SocketError> callback) 2090public SocketError SendTo(IList<ArraySegment<byte>> buffers, SocketFlags flags, Memory<byte> socketAddress, int timeout, out int bytesSent) 2099SocketError errorCode; 2124public SocketError SendToAsync(IList<ArraySegment<byte>> buffers, SocketFlags flags, Memory<byte> socketAddress, out int bytesSent, Action<int, Memory<byte>, SocketFlags, SocketError> callback) 2131SocketError errorCode; 2157return SocketError.IOPending; 2160public SocketError SendFile(SafeFileHandle fileHandle, long offset, long count, int timeout, out long bytesSent) 2167SocketError errorCode; 2190public SocketError SendFileAsync(SafeFileHandle fileHandle, long offset, long count, out long bytesSent, Action<long, SocketError> callback, CancellationToken cancellationToken = default) 2195SocketError errorCode; 2218return SocketError.IOPending;

55private SocketError _socketError; 287public SocketError SocketError 431internal void SetResults(SocketError socketError, int bytesTransferred, SocketFlags flags) 447_socketError = SocketError.Success; 460_socketError = SocketError.OperationAborted; 464_socketError = SocketError.SocketError; 631internal void FinishOperationSyncFailure(SocketError socketError, int bytesTransferred, SocketFlags flags) 663internal void FinishOperationAsyncFailure(SocketError socketError, int bytesTransferred, SocketFlags flags) 748SocketError lastError = SocketError.NoData; 816if (internalArgs.SocketError == SocketError.Success) 824lastError = SocketError.OperationAborted; 844caughtException = new SocketException((int)SocketError.OperationAborted); 883(caughtException is SocketException se && se.SocketErrorCode == SocketError.OperationAborted)) 897SetResults(SocketError.Success, internalArgs.BytesTransferred, internalArgs.SocketFlags); 955public void SetResults(Socket? socket, SocketError socketError, int bytesTransferred, SocketFlags flags, Exception? exception) 960if (socketError == SocketError.Success && exception == null) 966_saea.SetResults(SocketError.Success, bytesTransferred, flags); 998SetResults(SocketError.Success, bytesTransferred, flags); 1005SocketError socketError; 1014if (socketError == SocketError.Success) 1041if (socketError == SocketError.Success) 1146private void FinishOperationSync(SocketError socketError, int bytesTransferred, SocketFlags flags) 1148Debug.Assert(socketError != SocketError.IOPending); 1150if (socketError == SocketError.Success)

16private Action<int, Memory<byte>, SocketFlags, SocketError>? _transferCompletionCallback; 26private void AcceptCompletionCallback(IntPtr acceptedFileDescriptor, Memory<byte> socketAddress, SocketError socketError) 33private void CompleteAcceptOperation(IntPtr acceptedFileDescriptor, Memory<byte> socketAddress, SocketError socketError) 36if (socketError == SocketError.Success) 46internal SocketError DoOperationAccept(Socket _ /*socket*/, SafeSocketHandle handle, SafeSocketHandle? acceptHandle, CancellationToken cancellationToken) 58SocketError socketError = handle.AsyncContext.AcceptAsync(_acceptBuffer!, out int socketAddressLen, out acceptedFd, AcceptCompletionCallback, cancellationToken); 60if (socketError != SocketError.IOPending) 69private void ConnectCompletionCallback(int bytesTransferred, Memory<byte> socketAddress, SocketFlags receivedFlags, SocketError socketError) 74internal SocketError DoOperationConnectEx(Socket _ /*socket*/, SafeSocketHandle handle, CancellationToken cancellationToken) 76SocketError socketError = handle.AsyncContext.ConnectAsync(_socketAddress!.Buffer, ConnectCompletionCallback, _buffer.Slice(_offset, _count), out int sentBytes, cancellationToken); 77if (socketError != SocketError.IOPending) 84internal SocketError DoOperationConnect(SafeSocketHandle handle, CancellationToken cancellationToken) 86SocketError socketError = handle.AsyncContext.ConnectAsync(_socketAddress!.Buffer, ConnectCompletionCallback, Memory<byte>.Empty, out int _, cancellationToken); 87if (socketError != SocketError.IOPending) 94internal SocketError DoOperationDisconnect(Socket socket, SafeSocketHandle handle, CancellationToken _ /*cancellationToken*/) 96SocketError socketError = SocketPal.Disconnect(socket, handle, _disconnectReuseSocket); 101private Action<int, Memory<byte>, SocketFlags, SocketError> TransferCompletionCallback => 104private void TransferCompletionCallbackCore(int bytesTransferred, Memory<byte> socketAddress, SocketFlags receivedFlags, SocketError socketError) 117internal SocketError DoOperationReceive(SafeSocketHandle handle, CancellationToken cancellationToken) 124SocketError errorCode; 144if (errorCode != SocketError.IOPending) 153internal SocketError DoOperationReceiveFrom(SafeSocketHandle handle, CancellationToken cancellationToken) 159SocketError errorCode; 171if (errorCode != SocketError.IOPending) 180private void ReceiveMessageFromCompletionCallback(int bytesTransferred, Memory<byte> socketAddress, SocketFlags receivedFlags, IPPacketInformation ipPacketInformation, SocketError errorCode) 196internal SocketError DoOperationReceiveMessageFrom(Socket socket, SafeSocketHandle handle, CancellationToken cancellationToken) 209SocketError socketError = handle.AsyncContext.ReceiveMessageFromAsync(_buffer.Slice(_offset, _count), _bufferListInternal, _socketFlags, _socketAddress.Buffer, out socketAddressSize, isIPv4, isIPv6, out bytesReceived, out receivedFlags, out ipPacketInformation, ReceiveMessageFromCompletionCallback, cancellationToken); 210if (socketError != SocketError.IOPending) 219internal SocketError DoOperationSend(SafeSocketHandle handle, CancellationToken cancellationToken) 225SocketError errorCode; 235if (errorCode != SocketError.IOPending) 244internal SocketError DoOperationSendPackets(Socket socket, SafeSocketHandle _1 /*handle*/, CancellationToken cancellationToken) 290if (error == SocketError.Success) 300return SocketError.IOPending; 303internal SocketError DoOperationSendTo(SafeSocketHandle handle, CancellationToken cancellationToken) 309SocketError errorCode; 319if (errorCode != SocketError.IOPending) 345private SocketError FinishOperationAccept(SocketAddress remoteSocketAddress) 367return SocketError.Success; 370private static SocketError FinishOperationConnect() 373return SocketError.Success; 385private void CompletionCallback(int bytesTransferred, SocketFlags flags, SocketError socketError) 387if (socketError == SocketError.Success) 395socketError = SocketError.OperationAborted;

30public static SocketError GetSocketErrorForErrorCode(Interop.Error errorCode) 59public static unsafe SocketError CreateSocket(AddressFamily addressFamily, SocketType socketType, ProtocolType protocolType, out SafeSocketHandle socket) 64SocketError errorCode; 70errorCode = SocketError.Success; 626public static unsafe bool TryCompleteAccept(SafeSocketHandle socket, Memory<byte> socketAddress, out int socketAddressLen, out IntPtr acceptedFd, out SocketError errorCode) 641errorCode = SocketError.OperationAborted; 652errorCode = SocketError.Success; 665errorCode = SocketError.Success; 669public static bool TryStartConnect(SafeSocketHandle socket, Memory<byte> socketAddress, out SocketError errorCode) => TryStartConnect(socket, socketAddress, out errorCode, Span<byte>.Empty, false, out int _ ); 671public static unsafe bool TryStartConnect(SafeSocketHandle socket, Memory<byte> socketAddress, out SocketError errorCode, Span<byte> data, bool tfo, out int sent) 678errorCode = SocketError.IsConnected; 699errorCode = SocketError.Success; 709errorCode = SocketError.Success; 713public static unsafe bool TryCompleteConnect(SafeSocketHandle socket, out SocketError errorCode) 741errorCode = SocketError.OperationAborted; 748errorCode = SocketError.SocketError; 754errorCode = SocketError.Success; 759errorCode = SocketError.Success; 767public static bool TryCompleteReceiveFrom(SafeSocketHandle socket, Span<byte> buffer, SocketFlags flags, Span<byte> socketAddress, out int socketAddressLen, out int bytesReceived, out SocketFlags receivedFlags, out SocketError errorCode) => 770public static bool TryCompleteReceiveFrom(SafeSocketHandle socket, IList<ArraySegment<byte>> buffers, SocketFlags flags, Span<byte> socketAddress, out int socketAddressLen, out int bytesReceived, out SocketFlags receivedFlags, out SocketError errorCode) => 773public static unsafe bool TryCompleteReceive(SafeSocketHandle socket, Span<byte> buffer, SocketFlags flags, out int bytesReceived, out SocketError errorCode) 808errorCode = SocketError.Success; 820errorCode = SocketError.Success; 827errorCode = SocketError.OperationAborted; 832public static unsafe bool TryCompleteReceiveFrom(SafeSocketHandle socket, Span<byte> buffer, IList<ArraySegment<byte>>? buffers, SocketFlags flags, Span<byte> socketAddress, out int receivedSocketAddressLength, out int bytesReceived, out SocketFlags receivedFlags, out SocketError errorCode) 876errorCode = SocketError.Success; 889errorCode = SocketError.Success; 898errorCode = SocketError.OperationAborted; 903public static bool TryCompleteReceiveMessageFrom(SafeSocketHandle socket, Span<byte> buffer, IList<ArraySegment<byte>>? buffers, SocketFlags flags, Memory<byte> socketAddress, out int receivedSocketAddressLength, bool isIPv4, bool isIPv6, out int bytesReceived, out SocketFlags receivedFlags, out IPPacketInformation ipPacketInformation, out SocketError errorCode) 922errorCode = SocketError.Success; 934errorCode = SocketError.Success; 944errorCode = SocketError.OperationAborted; 949public static bool TryCompleteSendTo(SafeSocketHandle socket, Span<byte> buffer, ref int offset, ref int count, SocketFlags flags, ReadOnlySpan<byte> socketAddress, ref int bytesSent, out SocketError errorCode) 955public static bool TryCompleteSendTo(SafeSocketHandle socket, ReadOnlySpan<byte> buffer, SocketFlags flags, ReadOnlySpan<byte> socketAddress, ref int bytesSent, out SocketError errorCode) 961public static bool TryCompleteSendTo(SafeSocketHandle socket, IList<ArraySegment<byte>> buffers, ref int bufferIndex, ref int offset, SocketFlags flags, ReadOnlySpan<byte> socketAddress, ref int bytesSent, out SocketError errorCode) 967public static bool TryCompleteSendTo(SafeSocketHandle socket, ReadOnlySpan<byte> buffer, IList<ArraySegment<byte>>? buffers, ref int bufferIndex, ref int offset, ref int count, SocketFlags flags, ReadOnlySpan<byte> socketAddress, ref int bytesSent, out SocketError errorCode) 995errorCode = SocketError.OperationAborted; 1007errorCode = successfulSend ? SocketError.Success : SocketError.WouldBlock; 1019errorCode = SocketError.Success; 1029errorCode = SocketError.TimedOut; 1036public static bool TryCompleteSendFile(SafeSocketHandle socket, SafeFileHandle handle, ref long offset, ref long count, ref long bytesSent, out SocketError errorCode) 1050errorCode = SocketError.OperationAborted; 1062errorCode = SocketError.Success; 1068errorCode = SocketError.Success; 1074public static SocketError SetBlocking(SafeSocketHandle handle, bool shouldBlock, out bool willBlock) 1080return SocketError.Success; 1083public static unsafe SocketError GetSockName(SafeSocketHandle handle, byte* buffer, int* nameLen) 1086return err == Interop.Error.SUCCESS ? SocketError.Success : GetSocketErrorForErrorCode(err); 1089public static unsafe SocketError GetAvailable(SafeSocketHandle handle, out int available) 1095return err == Interop.Error.SUCCESS ? SocketError.Success : GetSocketErrorForErrorCode(err); 1098public static unsafe SocketError GetAtOutOfBandMark(SafeSocketHandle handle, out int atOutOfBandMark) 1104return err == Interop.Error.SUCCESS ? SocketError.Success : GetSocketErrorForErrorCode(err); 1107public static unsafe SocketError GetPeerName(SafeSocketHandle handle, Span<byte> buffer, ref int nameLen) 1117return err == Interop.Error.SUCCESS ? SocketError.Success : GetSocketErrorForErrorCode(err); 1120public static SocketError Bind(SafeSocketHandle handle, ProtocolType socketProtocolType, ReadOnlySpan<byte> buffer) 1124return err == Interop.Error.SUCCESS ? SocketError.Success : GetSocketErrorForErrorCode(err); 1127public static SocketError Listen(SafeSocketHandle handle, int backlog) 1130return err == Interop.Error.SUCCESS ? SocketError.Success : GetSocketErrorForErrorCode(err); 1133public static SocketError Accept(SafeSocketHandle listenSocket, Memory<byte> socketAddress, out int socketAddressLen, out SafeSocketHandle socket) 1138SocketError errorCode; 1147errorCode = SocketError.WouldBlock; 1158public static SocketError Connect(SafeSocketHandle handle, Memory<byte> socketAddress) 1165SocketError errorCode; 1174return SocketError.WouldBlock; 1178public static SocketError Send(SafeSocketHandle handle, IList<ArraySegment<byte>> buffers, SocketFlags socketFlags, out int bytesTransferred) 1189SocketError errorCode; 1194public static SocketError Send(SafeSocketHandle handle, byte[] buffer, int offset, int count, SocketFlags socketFlags, out int bytesTransferred) 1202SocketError errorCode; 1207public static SocketError Send(SafeSocketHandle handle, ReadOnlySpan<byte> buffer, SocketFlags socketFlags, out int bytesTransferred) 1215SocketError errorCode; 1220public static SocketError SendFile(SafeSocketHandle handle, SafeFileHandle fileHandle) 1231SocketError errorCode; 1233return completed ? errorCode : SocketError.WouldBlock; 1236public static SocketError SendTo(SafeSocketHandle handle, byte[] buffer, int offset, int count, SocketFlags socketFlags, Memory<byte> socketAddress, out int bytesTransferred) 1244SocketError errorCode; 1249public static SocketError SendTo(SafeSocketHandle handle, ReadOnlySpan<byte> buffer, SocketFlags socketFlags, Memory<byte> socketAddress, out int bytesTransferred) 1257SocketError errorCode; 1262public static SocketError Receive(SafeSocketHandle handle, IList<ArraySegment<byte>> buffers, SocketFlags socketFlags, out int bytesTransferred) 1264SocketError errorCode; 1273errorCode = SocketError.WouldBlock; 1280public static SocketError Receive(SafeSocketHandle handle, byte[] buffer, int offset, int count, SocketFlags socketFlags, out int bytesTransferred) 1287SocketError errorCode; 1289return completed ? errorCode : SocketError.WouldBlock; 1292public static SocketError Receive(SafeSocketHandle handle, Span<byte> buffer, SocketFlags socketFlags, out int bytesTransferred) 1299SocketError errorCode; 1301return completed ? errorCode : SocketError.WouldBlock; 1304public static SocketError ReceiveMessageFrom(Socket socket, SafeSocketHandle handle, byte[] buffer, int offset, int count, ref SocketFlags socketFlags, SocketAddress socketAddress, out SocketAddress receiveAddress, out IPPacketInformation ipPacketInformation, out int bytesTransferred) 1311SocketError errorCode; 1320errorCode = SocketError.WouldBlock; 1330public static SocketError ReceiveMessageFrom(Socket socket, SafeSocketHandle handle, Span<byte> buffer, ref SocketFlags socketFlags, SocketAddress socketAddress, out SocketAddress receiveAddress, out IPPacketInformation ipPacketInformation, out int bytesTransferred) 1337SocketError errorCode; 1346errorCode = SocketError.WouldBlock; 1355public static SocketError ReceiveFrom(SafeSocketHandle handle, byte[] buffer, int offset, int count, SocketFlags socketFlags, Memory<byte> socketAddress, out int socketAddressLen, out int bytesTransferred) 1362SocketError errorCode; 1364return completed ? errorCode : SocketError.WouldBlock; 1367public static SocketError ReceiveFrom(SafeSocketHandle handle, Span<byte> buffer, SocketFlags socketFlags, Memory<byte> socketAddress, out int socketAddressLen, out int bytesTransferred) 1374SocketError errorCode; 1376return completed ? errorCode : SocketError.WouldBlock; 1379public static SocketError WindowsIoctl(SafeSocketHandle handle, int ioControlCode, byte[]? _ /*optionInValue*/, byte[]? optionOutValue, out int optionLength) 1401return SocketError.Fault; 1405SocketError error = ioControlCode == FIONREAD ? 1408if (error == SocketError.Success) 1421private static SocketError GetErrorAndTrackSetting(SafeSocketHandle handle, SocketOptionLevel optionLevel, SocketOptionName optionName, Interop.Error err) 1426return SocketError.Success; 1431public static unsafe SocketError SetSockOpt(SafeSocketHandle handle, SocketOptionLevel optionLevel, SocketOptionName optionName, int optionValue) 1502public static unsafe SocketError SetSockOpt(SafeSocketHandle handle, SocketOptionLevel optionLevel, SocketOptionName optionName, byte[] optionValue) 1511public static unsafe SocketError SetRawSockOpt(SafeSocketHandle handle, int optionLevel, int optionName, ReadOnlySpan<byte> optionValue) 1525return SocketError.Success; 1532public static unsafe SocketError SetMulticastOption(SafeSocketHandle handle, SocketOptionName optionName, MulticastOption optionValue) 1555public static unsafe SocketError SetIPv6MulticastOption(SafeSocketHandle handle, SocketOptionName optionName, IPv6MulticastOption optionValue) 1572public static unsafe SocketError SetLingerOption(SafeSocketHandle handle, LingerOption optionValue) 1600public static unsafe SocketError GetSockOpt(SafeSocketHandle handle, SocketOptionLevel optionLevel, SocketOptionName optionName, out int optionValue) 1607return SocketError.Success; 1612return SocketError.Success; 1621return getErrorError == Interop.Error.SUCCESS ? SocketError.Success : GetSocketErrorForErrorCode(getErrorError); 1640return err == Interop.Error.SUCCESS ? SocketError.Success : GetSocketErrorForErrorCode(err); 1643public static unsafe SocketError GetSockOpt(SafeSocketHandle handle, SocketOptionLevel optionLevel, SocketOptionName optionName, byte[] optionValue, ref int optionLength) 1656SocketError returnError = GetSockOpt(handle, optionLevel, optionName, out outError); 1657if (returnError == SocketError.Success) 1678return SocketError.Success; 1684public static unsafe SocketError GetRawSockOpt(SafeSocketHandle handle, int optionLevel, int optionName, Span<byte> optionValue, ref int optionLength) 1696return SocketError.Success; 1703public static unsafe SocketError GetMulticastOption(SafeSocketHandle handle, SocketOptionName optionName, out MulticastOption? optionValue) 1725return SocketError.Success; 1728public static unsafe SocketError GetIPv6MulticastOption(SafeSocketHandle handle, SocketOptionName optionName, out IPv6MulticastOption? optionValue) 1745return SocketError.Success; 1748public static unsafe SocketError GetLingerOption(SafeSocketHandle handle, out LingerOption? optionValue) 1759return SocketError.Success; 1762public static SocketError Poll(SafeSocketHandle handle, int microseconds, SelectMode mode, out bool status) 1789return SocketError.Success; 1792public static unsafe SocketError Select(IList? checkRead, IList? checkWrite, IList? checkError, int microseconds) 1835private static unsafe SocketError SelectViaSelect(IList? checkRead, IList? checkWrite, IList? checkError, int microseconds) 1884return (SocketError)0; 1932private static unsafe SocketError SelectViaPoll( 1980return SocketError.Success; 2049public static SocketError Shutdown(SafeSocketHandle handle, bool isConnected, bool isDisconnected, SocketShutdown how) 2055return SocketError.Success; 2064return SocketError.Success; 2070private static SocketError SendFileAsync(SafeSocketHandle handle, SafeFileHandle fileHandle, long offset, long count, CancellationToken cancellationToken, Action<long, SocketError> callback) 2073SocketError socketError = handle.AsyncContext.SendFileAsync(fileHandle, offset, count, out bytesSent, callback, cancellationToken); 2074if (socketError == SocketError.Success) 2076callback(bytesSent, SocketError.Success); 2082Socket socket, TransmitFileOptions options, SendPacketsElement[] elements, SafeFileHandle[] fileHandles, CancellationToken cancellationToken, Action<long, SocketError> callback) 2084SocketError error = SocketError.Success; 2108var tcs = new TaskCompletionSource<SocketError>(); 2117if (error == SocketError.IOPending) 2121if (error != SocketError.Success) 2132if (error != SocketError.Success) 2147exc is ArgumentException ? SocketError.InvalidArgument : 2148exc is OperationCanceledException ? SocketError.OperationAborted : 2149SocketError.SocketError; 2157internal static SocketError Disconnect(Socket socket, SafeSocketHandle handle, bool reuseSocket) 2164SocketError.Success; 2191SocketError errorCode = GetSockOpt(handle, SocketOptionLevel.Socket, SocketOptionName.Error, out int optionValue); 2192if (errorCode != SocketError.Success) 2197success = (SocketError)optionValue == SocketError.Success;

51private void ConnectFailed(SocketError error, string? exceptionMessage) 75private void AcceptFailed(SocketError error, string? exceptionMessage) 145public void AfterConnect(SocketError error, Activity? activity, string? exceptionMessage = null) 155bool connectPending = error is SocketError.WouldBlock or SocketError.InProgress; 159if (error != SocketError.Success && !connectPending) 168if (error == SocketError.Success) 200public void AfterAccept(SocketError error, string? exceptionMessage = null) 202if (error == SocketError.Success) 241private static string GetErrorType(SocketError socketError) => socketError switch 246SocketError.NetworkDown => "network_down", 247SocketError.AddressAlreadyInUse => "address_already_in_use", 248SocketError.Interrupted => "interrupted", 249SocketError.InProgress => "in_progress", 250SocketError.AlreadyInProgress => "already_in_progress", 251SocketError.AddressNotAvailable => "address_not_available", 252SocketError.AddressFamilyNotSupported => "address_family_not_supported", 253SocketError.ConnectionRefused => "connection_refused", 254SocketError.Fault => "fault", 255SocketError.InvalidArgument => "invalid_argument", 256SocketError.IsConnected => "is_connected", 257SocketError.NetworkUnreachable => "network_unreachable", 258SocketError.HostUnreachable => "host_unreachable", 259SocketError.NoBufferSpaceAvailable => "no_buffer_space_available", 260SocketError.TimedOut => "timed_out", 261SocketError.AccessDenied => "access_denied", 262SocketError.ProtocolType => "protocol_type",

432throw new SocketException((int)SocketError.OperationNotSupported); 452throw new SocketException((int)SocketError.OperationNotSupported); 520throw new SocketException((int)SocketError.OperationNotSupported); 800throw new SocketException((int)SocketError.NotConnected);

125SocketError socketErrorCode = innerSocketException.SocketErrorCode; 128case SocketError.TryAgain: 129case SocketError.NoRecovery: 130case SocketError.NoData: 131case SocketError.HostNotFound:

41var error = SocketError; 43return error == SocketError.Success 58var error = SocketError; 60return error == SocketError.Success 83if (SocketError != SocketError.Success) 95if (SocketError != SocketError.Success) 101protected static SocketException CreateException(SocketError e) 109SocketError == SocketError.Success ? ValueTaskSourceStatus.Succeeded :

41var error = SocketError; 43return error == SocketError.Success 58var error = SocketError; 60return error == SocketError.Success 83if (SocketError != SocketError.Success) 95if (SocketError != SocketError.Success) 101protected static SocketException CreateException(SocketError e) 109SocketError == SocketError.Success ? ValueTaskSourceStatus.Succeeded :