MSG

    pub const MSG = packed struct(kern_return_t) {
        _0: u10 = 0,
        /// Kernel resource shortage handling an IPC capability.
        VM_KERNEL: bool = false,
        /// Kernel resource shortage handling out-of-line memory.
        IPC_KERNEL: bool = false,
        /// No room in VM address space for out-of-line memory.
        VM_SPACE: bool = false,
        /// No room in IPC name space for another capability name.
        IPC_SPACE: bool = false,
        _14: u18 = 0,

        pub const MASK: kern_return_t = @bitCast(MACH.MSG{
            .VM_KERNEL = true,
            .IPC_KERNEL = true,
            .VM_SPACE = true,
            .IPC_SPACE = true,
        });

        pub const TIMEOUT_NONE: mach_msg_timeout_t = .NONE;
        pub const OPTION_NONE: mach_msg_option_t = .NONE;
        pub const STRICT_REPLY = @compileError("use MACH.RCV.STRICT_REPLY and/or MACH.SEND.STRICT_REPLY");

        pub const TYPE = mach_msg_type_name_t;
    }