# frozen_string_literal: true

module Libuv
    module Ext
        typedef :uint32_t, :in_addr_t
        typedef :uint16, :in_port_t
        typedef :int, :mode_t
        # http://stackoverflow.com/questions/1953639/is-it-safe-to-cast-socket-to-int-under-win64
        typedef :int, :uv_os_sock_t

        module WS2
            extend FFI::Library
            ffi_lib('Ws2_32.dll').first  # this is for ntohs
            attach_function :ntohs, [:ushort], :ushort, :blocking => true
        end

        def self.ntohs(ushort)
            ::Libuv::Ext::WS2.ntohs(ushort)
        end

        # win32 has a different uv_buf_t layout to everything else.
        class UvBuf < FFI::Struct
            layout :len, :ulong, :base, :pointer
        end

        # win32 uses _stati64
        class UvFSStat < FFI::Struct
            layout  :st_gid, :gid_t, :st_atime, :time_t, :st_ctime, :time_t, :st_dev, :dev_t,
                    :st_ino, :ino_t, :st_mode, :mode_t, :st_mtime, :time_t, :st_nlink, :nlink_t,
                    :st_rdev, :dev_t, :st_size, :off_t, :st_uid, :uid_t
        end



        class Sockaddr < FFI::Struct
            layout :sa_len, :uint8,
                   :sa_family, :sa_family_t,
                   :sa_data, [:char, 14]
        end

        class InAddr < FFI::Struct
            layout :s_addr, :in_addr_t
        end

        class SockaddrIn < FFI::Struct
            layout :sin_family, :sa_family_t,
                   :sin_port, :in_port_t,
                   :sin_addr, InAddr,
                   :sin_zero, [:char, 8]
        end

        class U6Addr < FFI::Union
            layout :__u6_addr8, [:uint8, 16],
                   :__u6_addr16, [:uint16, 8]
        end

        class In6Addr < FFI::Struct
            layout :__u6_addr, U6Addr
        end

        class SockaddrIn6 < FFI::Struct
            layout :sin6_len, :uint8,
                   :sin6_family, :sa_family_t,
                   :sin6_port, :in_port_t,
                   :sin6_flowinfo, :uint32,
                   :sin6_addr, In6Addr,
                   :sin6_scope_id, :uint32
        end



        class UvAddrinfo < FFI::Struct
            layout  :flags, :int,
                    :family, :int,
                    :socktype, :int,
                    :protocol, :int,
                    :addrlen, :size_t,
                    :canonname, :string,
                    :addr, Sockaddr.by_ref,
                    :next, UvAddrinfo.by_ref
        end
    end
end