AFD

pub const AFD = packed struct(ULONG) {
    NO_FAST_IO: bool = false,
    OVERLAPPED: bool = false,
    Reserved0: u30 = 0,

    pub const Mutability = enum { @"const", @"var" };
    pub fn WSABUF(comptime mutability: Mutability) type {
        return extern struct {
            len: ULONG,
            buf: switch (mutability) {
                .@"const" => [*]const u8,
                .@"var" => [*]u8,
            },
        };
    }
    pub const GUARANTEE = enum(c_int) {
        BestEffort,
        ControlledLoad,
        Predictive,
        GuaranteedDelay,
        Guaranteed,
        _,
    };
    pub const DEVICE_NAME: []const u16 = &.{ '\\', 'D', 'e', 'v', 'i', 'c', 'e', '\\', 'A', 'f', 'd' };
    pub const ENDPOINT_TYPE = packed struct(ULONG) {
        CONNECTIONLESS: bool = false,
        Reserved1: u3 = 0,
        MESSAGEMODE: bool = false,
        Reserved5: u3 = 0,
        RAW: bool = false,
        Reserved9: u22 = 0,
        REGISTERED_IO: bool = false,
    };
    pub const OPEN_PACKET = extern struct {
        EndpointType: ENDPOINT_TYPE,
        GroupID: LONG,
        AddressFamily: LONG,
        SocketType: LONG,
        Protocol: LONG,
        TransportDeviceNameLength: ULONG,
        TransportDeviceName: [1]WCHAR,

        pub const NAME = "AfdOpenPacketXX";

        pub const FULL_EA_INFORMATION = extern struct {
            Header: FILE.FULL_EA_INFORMATION = .{
                .NextEntryOffset = 0,
                .Flags = 0,
                .EaNameLength = NAME.len,
                .EaValueLength = @sizeOf(OPEN_PACKET),
                .EaName = .{},
            },
            Name: [NAME.len:0]u8 = NAME.*,
            Value: OPEN_PACKET,
        };
    };
    pub const BIND_INFO = extern struct {
        Mode: MODE,

        pub const MODE = enum(ULONG) {
            Unix = 0,
            Passive = 1,
            Active = 2,
            _,
        };
    };
    pub const LISTEN_INFO = extern struct {
        UseSAN: BOOLEAN,
        MaximumConnectionQueue: ULONG,
        UseDelayedAcceptance: BOOLEAN,
    };
    pub const LISTEN_RESPONSE_INFO = extern struct {
        Sequence: ULONG,
    };
    pub const ACCEPT_INFO = extern struct {
        UseSAN: BOOLEAN,
        Sequence: ULONG,
        AcceptHandle: HANDLE,
    };
    pub const SUPER_ACCEPT_INFO = extern struct {
        UseSAN: BOOLEAN,
        AcceptHandle: HANDLE,
        AcceptEndpoint: PVOID,
        AcceptFileObject: PVOID,
        ReceiveDataLength: ULONG,
        LocalAddressLength: ULONG,
        RemoteAddressLength: ULONG,
        ListenResponseInfo: LISTEN_RESPONSE_INFO,
    };
    pub const DEFER_ACCEPT_INFO = extern struct {
        Sequence: ULONG,
        Reject: BOOLEAN,
    };
    pub const PARTIAL_DISCONNECT_INFO = extern struct {
        DisconnectMode: MODE,
        Timeout: LARGE_INTEGER,

        pub const MODE = packed struct(ULONG) {
            SEND: bool = false,
            RECEIVE: bool = false,
            ABORTIVE: bool = false,
            UNCONNECT_DATAGRAM: bool = false,
            Reserved4: u28 = 0,
        };
    };
    pub const RECEIVE_INFORMATION = extern struct {
        BytesAvailable: ULONG,
        ExpeditedBytesAvailable: ULONG,
    };
    pub const HANDLE_INFO = extern struct {
        TdiAddressHandle: HANDLE,
        TdiConnectionHandle: HANDLE,
    };
    pub const INFORMATION = extern struct {
        InformationType: TYPE,
        Information: extern union {
            Boolean: BOOLEAN,
            Ulong: ULONG,
            LargeInteger: LARGE_INTEGER,
        },

        pub const TYPE = enum(ULONG) {
            INLINE_MODE = 0x01,
            NONBLOCKING_MODE = 0x02,
            MAX_SEND_SIZE = 0x03,
            SENDS_PENDING = 0x04,
            MAX_PATH_SEND_SIZE = 0x05,
            RECEIVE_WINDOW_SIZE = 0x06,
            SEND_WINDOW_SIZE = 0x07,
            CONNECT_TIME = 0x08,
            CIRCULAR_QUEUEING = 0x09,
            GROUP_ID_AND_TYPE = 0x0A,
            _,
        };
    };
    pub const TRANSMIT_FILE_INFO = extern struct {
        Offset: LARGE_INTEGER,
        WriteLength: LARGE_INTEGER,
        SendPacketLength: ULONG,
        FileHandle: HANDLE,
        Head: PVOID,
        HeadLength: ULONG,
        Tail: PVOID,
        TailLength: ULONG,
        Flags: FLAGS,

        pub const FLAGS = packed struct(ULONG) {
            DISCONNECT: bool = false,
            REUSE_SOCKET: bool = false,
            WRITE_BEHIND: bool = false,
            Reserved3: u25 = 0,
        };
    };
    pub const QUEUE_APC_INFO = extern struct {
        Thread: HANDLE,
        ApcRoutine: PVOID,
        ApcContext: PVOID,
        SystemArgument1: PVOID,
        SystemArgument2: PVOID,
    };
    pub const SEND_INFO = extern struct {
        BufferArray: [*]const WSABUF(.@"const"),
        BufferCount: ULONG,
        AfdFlags: AFD,
        TdiFlags: TDI.SEND,
    };
    pub const SEND_DATAGRAM_INFO = extern struct {
        BufferArray: [*]const WSABUF(.@"const"),
        BufferCount: ULONG,
        AfdFlags: AFD,
        TdiRequest: TDI.REQUEST.SEND_DATAGRAM,
        TdiConnInfo: TDI.CONNECTION.INFORMATION,
    };
    pub const RECV_INFO = extern struct {
        BufferArray: [*]const WSABUF(.@"var"),
        BufferCount: ULONG,
        AfdFlags: AFD,
        TdiFlags: TDI.RECEIVE,
    };
    pub const RECV_DATAGRAM_INFO = extern struct {
        BufferArray: [*]const WSABUF(.@"var"),
        BufferCount: ULONG,
        AfdFlags: AFD,
        TdiFlags: TDI.RECEIVE,
        Address: PVOID,
        AddressLength: *ULONG,
    };
    pub const SOCKOPT_INFO = extern struct {
        mode: Mode,
        level: i32,
        optname: u32,
        ding: u32 = 1,
        optval: *const anyopaque,
        optlen: usize,

        pub const Mode = enum(u32) { set = 1, get = 2, special = 3, _ };

        pub const UNIX_PATH = extern struct { Unknown0: usize = 0, Path: [PATH_MAX_WIDE:0]u16 };
    };
}