GetPerTcpConnectionEStats

// IPHLPAPI.dll
#include <windows.h>

DWORD GetPerTcpConnectionEStats(
    MIB_TCPROW_LH* Row,
    TCP_ESTATS_TYPE EstatsType,
    BYTE* Rw,   // optional
    DWORD RwVersion,
    DWORD RwSize,
    BYTE* Ros,   // optional
    DWORD RosVersion,
    DWORD RosSize,
    BYTE* Rod,   // optional
    DWORD RodVersion,
    DWORD RodSize
);

<DllImport("IPHLPAPI.dll", ExactSpelling:=True)>
Public Shared Function GetPerTcpConnectionEStats(
    Row As IntPtr,   ' MIB_TCPROW_LH*
    EstatsType As Integer,   ' TCP_ESTATS_TYPE
    Rw As IntPtr,   ' BYTE* optional, out
    RwVersion As UInteger,   ' DWORD
    RwSize As UInteger,   ' DWORD
    Ros As IntPtr,   ' BYTE* optional, out
    RosVersion As UInteger,   ' DWORD
    RosSize As UInteger,   ' DWORD
    Rod As IntPtr,   ' BYTE* optional, out
    RodVersion As UInteger,   ' DWORD
    RodSize As UInteger   ' DWORD
) As UInteger
End Function

' Row : MIB_TCPROW_LH*
' EstatsType : TCP_ESTATS_TYPE
' Rw : BYTE* optional, out
' RwVersion : DWORD
' RwSize : DWORD
' Ros : BYTE* optional, out
' RosVersion : DWORD
' RosSize : DWORD
' Rod : BYTE* optional, out
' RodVersion : DWORD
' RodSize : DWORD
Declare PtrSafe Function GetPerTcpConnectionEStats Lib "iphlpapi" ( _
    ByVal Row As LongPtr, _
    ByVal EstatsType As Long, _
    ByVal Rw As LongPtr, _
    ByVal RwVersion As Long, _
    ByVal RwSize As Long, _
    ByVal Ros As LongPtr, _
    ByVal RosVersion As Long, _
    ByVal RosSize As Long, _
    ByVal Rod As LongPtr, _
    ByVal RodVersion As Long, _
    ByVal RodSize As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetPerTcpConnectionEStats = ctypes.windll.iphlpapi.GetPerTcpConnectionEStats
GetPerTcpConnectionEStats.restype = wintypes.DWORD
GetPerTcpConnectionEStats.argtypes = [
    ctypes.c_void_p,  # Row : MIB_TCPROW_LH*
    ctypes.c_int,  # EstatsType : TCP_ESTATS_TYPE
    ctypes.POINTER(ctypes.c_ubyte),  # Rw : BYTE* optional, out
    wintypes.DWORD,  # RwVersion : DWORD
    wintypes.DWORD,  # RwSize : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # Ros : BYTE* optional, out
    wintypes.DWORD,  # RosVersion : DWORD
    wintypes.DWORD,  # RosSize : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # Rod : BYTE* optional, out
    wintypes.DWORD,  # RodVersion : DWORD
    wintypes.DWORD,  # RodSize : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('IPHLPAPI.dll')
GetPerTcpConnectionEStats = Fiddle::Function.new(
  lib['GetPerTcpConnectionEStats'],
  [
    Fiddle::TYPE_VOIDP,  # Row : MIB_TCPROW_LH*
    Fiddle::TYPE_INT,  # EstatsType : TCP_ESTATS_TYPE
    Fiddle::TYPE_VOIDP,  # Rw : BYTE* optional, out
    -Fiddle::TYPE_INT,  # RwVersion : DWORD
    -Fiddle::TYPE_INT,  # RwSize : DWORD
    Fiddle::TYPE_VOIDP,  # Ros : BYTE* optional, out
    -Fiddle::TYPE_INT,  # RosVersion : DWORD
    -Fiddle::TYPE_INT,  # RosSize : DWORD
    Fiddle::TYPE_VOIDP,  # Rod : BYTE* optional, out
    -Fiddle::TYPE_INT,  # RodVersion : DWORD
    -Fiddle::TYPE_INT,  # RodSize : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "iphlpapi")]
extern "system" {
    fn GetPerTcpConnectionEStats(
        Row: *mut MIB_TCPROW_LH,  // MIB_TCPROW_LH*
        EstatsType: i32,  // TCP_ESTATS_TYPE
        Rw: *mut u8,  // BYTE* optional, out
        RwVersion: u32,  // DWORD
        RwSize: u32,  // DWORD
        Ros: *mut u8,  // BYTE* optional, out
        RosVersion: u32,  // DWORD
        RosSize: u32,  // DWORD
        Rod: *mut u8,  // BYTE* optional, out
        RodVersion: u32,  // DWORD
        RodSize: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("IPHLPAPI.dll")]
public static extern uint GetPerTcpConnectionEStats(IntPtr Row, int EstatsType, IntPtr Rw, uint RwVersion, uint RwSize, IntPtr Ros, uint RosVersion, uint RosSize, IntPtr Rod, uint RodVersion, uint RodSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'IPHLPAPI_GetPerTcpConnectionEStats' -Namespace Win32 -PassThru
# $api::GetPerTcpConnectionEStats(Row, EstatsType, Rw, RwVersion, RwSize, Ros, RosVersion, RosSize, Rod, RodVersion, RodSize)

#uselib "IPHLPAPI.dll"
#func global GetPerTcpConnectionEStats "GetPerTcpConnectionEStats" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; GetPerTcpConnectionEStats varptr(Row), EstatsType, varptr(Rw), RwVersion, RwSize, varptr(Ros), RosVersion, RosSize, varptr(Rod), RodVersion, RodSize   ; 戻り値は stat
; Row : MIB_TCPROW_LH* -> "sptr"
; EstatsType : TCP_ESTATS_TYPE -> "sptr"
; Rw : BYTE* optional, out -> "sptr"
; RwVersion : DWORD -> "sptr"
; RwSize : DWORD -> "sptr"
; Ros : BYTE* optional, out -> "sptr"
; RosVersion : DWORD -> "sptr"
; RosSize : DWORD -> "sptr"
; Rod : BYTE* optional, out -> "sptr"
; RodVersion : DWORD -> "sptr"
; RodSize : DWORD -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	iphlpapi = windows.NewLazySystemDLL("IPHLPAPI.dll")
	procGetPerTcpConnectionEStats = iphlpapi.NewProc("GetPerTcpConnectionEStats")
)

// Row (MIB_TCPROW_LH*), EstatsType (TCP_ESTATS_TYPE), Rw (BYTE* optional, out), RwVersion (DWORD), RwSize (DWORD), Ros (BYTE* optional, out), RosVersion (DWORD), RosSize (DWORD), Rod (BYTE* optional, out), RodVersion (DWORD), RodSize (DWORD)
r1, _, err := procGetPerTcpConnectionEStats.Call(
	uintptr(Row),
	uintptr(EstatsType),
	uintptr(Rw),
	uintptr(RwVersion),
	uintptr(RwSize),
	uintptr(Ros),
	uintptr(RosVersion),
	uintptr(RosSize),
	uintptr(Rod),
	uintptr(RodVersion),
	uintptr(RodSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function GetPerTcpConnectionEStats(
  Row: Pointer;   // MIB_TCPROW_LH*
  EstatsType: Integer;   // TCP_ESTATS_TYPE
  Rw: Pointer;   // BYTE* optional, out
  RwVersion: DWORD;   // DWORD
  RwSize: DWORD;   // DWORD
  Ros: Pointer;   // BYTE* optional, out
  RosVersion: DWORD;   // DWORD
  RosSize: DWORD;   // DWORD
  Rod: Pointer;   // BYTE* optional, out
  RodVersion: DWORD;   // DWORD
  RodSize: DWORD   // DWORD
): DWORD; stdcall;
  external 'IPHLPAPI.dll' name 'GetPerTcpConnectionEStats';

result := DllCall("IPHLPAPI\GetPerTcpConnectionEStats"
    , "Ptr", Row   ; MIB_TCPROW_LH*
    , "Int", EstatsType   ; TCP_ESTATS_TYPE
    , "Ptr", Rw   ; BYTE* optional, out
    , "UInt", RwVersion   ; DWORD
    , "UInt", RwSize   ; DWORD
    , "Ptr", Ros   ; BYTE* optional, out
    , "UInt", RosVersion   ; DWORD
    , "UInt", RosSize   ; DWORD
    , "Ptr", Rod   ; BYTE* optional, out
    , "UInt", RodVersion   ; DWORD
    , "UInt", RodSize   ; DWORD
    , "UInt")   ; return: DWORD

●GetPerTcpConnectionEStats(Row, EstatsType, Rw, RwVersion, RwSize, Ros, RosVersion, RosSize, Rod, RodVersion, RodSize) = DLL("IPHLPAPI.dll", "dword GetPerTcpConnectionEStats(void*, int, void*, dword, dword, void*, dword, dword, void*, dword, dword)")
# 呼び出し: GetPerTcpConnectionEStats(Row, EstatsType, Rw, RwVersion, RwSize, Ros, RosVersion, RosSize, Rod, RodVersion, RodSize)
# Row : MIB_TCPROW_LH* -> "void*"
# EstatsType : TCP_ESTATS_TYPE -> "int"
# Rw : BYTE* optional, out -> "void*"
# RwVersion : DWORD -> "dword"
# RwSize : DWORD -> "dword"
# Ros : BYTE* optional, out -> "void*"
# RosVersion : DWORD -> "dword"
# RosSize : DWORD -> "dword"
# Rod : BYTE* optional, out -> "void*"
# RodVersion : DWORD -> "dword"
# RodSize : DWORD -> "dword"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。

const std = @import("std");

extern "iphlpapi" fn GetPerTcpConnectionEStats(
    Row: [*c]MIB_TCPROW_LH, // MIB_TCPROW_LH*
    EstatsType: i32, // TCP_ESTATS_TYPE
    Rw: [*c]u8, // BYTE* optional, out
    RwVersion: u32, // DWORD
    RwSize: u32, // DWORD
    Ros: [*c]u8, // BYTE* optional, out
    RosVersion: u32, // DWORD
    RosSize: u32, // DWORD
    Rod: [*c]u8, // BYTE* optional, out
    RodVersion: u32, // DWORD
    RodSize: u32 // DWORD
) callconv(std.os.windows.WINAPI) u32;

proc GetPerTcpConnectionEStats(
    Row: ptr MIB_TCPROW_LH,  # MIB_TCPROW_LH*
    EstatsType: int32,  # TCP_ESTATS_TYPE
    Rw: ptr uint8,  # BYTE* optional, out
    RwVersion: uint32,  # DWORD
    RwSize: uint32,  # DWORD
    Ros: ptr uint8,  # BYTE* optional, out
    RosVersion: uint32,  # DWORD
    RosSize: uint32,  # DWORD
    Rod: ptr uint8,  # BYTE* optional, out
    RodVersion: uint32,  # DWORD
    RodSize: uint32  # DWORD
): uint32 {.importc: "GetPerTcpConnectionEStats", stdcall, dynlib: "IPHLPAPI.dll".}

pragma(lib, "iphlpapi");
extern(Windows)
uint GetPerTcpConnectionEStats(
    MIB_TCPROW_LH* Row,   // MIB_TCPROW_LH*
    int EstatsType,   // TCP_ESTATS_TYPE
    ubyte* Rw,   // BYTE* optional, out
    uint RwVersion,   // DWORD
    uint RwSize,   // DWORD
    ubyte* Ros,   // BYTE* optional, out
    uint RosVersion,   // DWORD
    uint RosSize,   // DWORD
    ubyte* Rod,   // BYTE* optional, out
    uint RodVersion,   // DWORD
    uint RodSize   // DWORD
);

ccall((:GetPerTcpConnectionEStats, "IPHLPAPI.dll"), stdcall, UInt32,
      (Ptr{MIB_TCPROW_LH}, Int32, Ptr{UInt8}, UInt32, UInt32, Ptr{UInt8}, UInt32, UInt32, Ptr{UInt8}, UInt32, UInt32),
      Row, EstatsType, Rw, RwVersion, RwSize, Ros, RosVersion, RosSize, Rod, RodVersion, RodSize)
# Row : MIB_TCPROW_LH* -> Ptr{MIB_TCPROW_LH}
# EstatsType : TCP_ESTATS_TYPE -> Int32
# Rw : BYTE* optional, out -> Ptr{UInt8}
# RwVersion : DWORD -> UInt32
# RwSize : DWORD -> UInt32
# Ros : BYTE* optional, out -> Ptr{UInt8}
# RosVersion : DWORD -> UInt32
# RosSize : DWORD -> UInt32
# Rod : BYTE* optional, out -> Ptr{UInt8}
# RodVersion : DWORD -> UInt32
# RodSize : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t GetPerTcpConnectionEStats(
    void* Row,
    int32_t EstatsType,
    uint8_t* Rw,
    uint32_t RwVersion,
    uint32_t RwSize,
    uint8_t* Ros,
    uint32_t RosVersion,
    uint32_t RosSize,
    uint8_t* Rod,
    uint32_t RodVersion,
    uint32_t RodSize);
]]
local iphlpapi = ffi.load("iphlpapi")
-- iphlpapi.GetPerTcpConnectionEStats(Row, EstatsType, Rw, RwVersion, RwSize, Ros, RosVersion, RosSize, Rod, RodVersion, RodSize)
-- Row : MIB_TCPROW_LH*
-- EstatsType : TCP_ESTATS_TYPE
-- Rw : BYTE* optional, out
-- RwVersion : DWORD
-- RwSize : DWORD
-- Ros : BYTE* optional, out
-- RosVersion : DWORD
-- RosSize : DWORD
-- Rod : BYTE* optional, out
-- RodVersion : DWORD
-- RodSize : DWORD
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('IPHLPAPI.dll');
const GetPerTcpConnectionEStats = lib.func('__stdcall', 'GetPerTcpConnectionEStats', 'uint32_t', ['void *', 'int32_t', 'uint8_t *', 'uint32_t', 'uint32_t', 'uint8_t *', 'uint32_t', 'uint32_t', 'uint8_t *', 'uint32_t', 'uint32_t']);
// GetPerTcpConnectionEStats(Row, EstatsType, Rw, RwVersion, RwSize, Ros, RosVersion, RosSize, Rod, RodVersion, RodSize)
// Row : MIB_TCPROW_LH* -> 'void *'
// EstatsType : TCP_ESTATS_TYPE -> 'int32_t'
// Rw : BYTE* optional, out -> 'uint8_t *'
// RwVersion : DWORD -> 'uint32_t'
// RwSize : DWORD -> 'uint32_t'
// Ros : BYTE* optional, out -> 'uint8_t *'
// RosVersion : DWORD -> 'uint32_t'
// RosSize : DWORD -> 'uint32_t'
// Rod : BYTE* optional, out -> 'uint8_t *'
// RodVersion : DWORD -> 'uint32_t'
// RodSize : DWORD -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("IPHLPAPI.dll", {
  GetPerTcpConnectionEStats: { parameters: ["pointer", "i32", "pointer", "u32", "u32", "pointer", "u32", "u32", "pointer", "u32", "u32"], result: "u32" },
});
// lib.symbols.GetPerTcpConnectionEStats(Row, EstatsType, Rw, RwVersion, RwSize, Ros, RosVersion, RosSize, Rod, RodVersion, RodSize)
// Row : MIB_TCPROW_LH* -> "pointer"
// EstatsType : TCP_ESTATS_TYPE -> "i32"
// Rw : BYTE* optional, out -> "pointer"
// RwVersion : DWORD -> "u32"
// RwSize : DWORD -> "u32"
// Ros : BYTE* optional, out -> "pointer"
// RosVersion : DWORD -> "u32"
// RosSize : DWORD -> "u32"
// Rod : BYTE* optional, out -> "pointer"
// RodVersion : DWORD -> "u32"
// RodSize : DWORD -> "u32"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t GetPerTcpConnectionEStats(
    void* Row,
    int32_t EstatsType,
    uint8_t* Rw,
    uint32_t RwVersion,
    uint32_t RwSize,
    uint8_t* Ros,
    uint32_t RosVersion,
    uint32_t RosSize,
    uint8_t* Rod,
    uint32_t RodVersion,
    uint32_t RodSize);
C, "IPHLPAPI.dll");
// $ffi->GetPerTcpConnectionEStats(Row, EstatsType, Rw, RwVersion, RwSize, Ros, RosVersion, RosSize, Rod, RodVersion, RodSize);
// Row : MIB_TCPROW_LH*
// EstatsType : TCP_ESTATS_TYPE
// Rw : BYTE* optional, out
// RwVersion : DWORD
// RwSize : DWORD
// Ros : BYTE* optional, out
// RosVersion : DWORD
// RosSize : DWORD
// Rod : BYTE* optional, out
// RodVersion : DWORD
// RodSize : DWORD
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Iphlpapi extends StdCallLibrary {
    Iphlpapi INSTANCE = Native.load("iphlpapi", Iphlpapi.class);
    int GetPerTcpConnectionEStats(
        Pointer Row,   // MIB_TCPROW_LH*
        int EstatsType,   // TCP_ESTATS_TYPE
        byte[] Rw,   // BYTE* optional, out
        int RwVersion,   // DWORD
        int RwSize,   // DWORD
        byte[] Ros,   // BYTE* optional, out
        int RosVersion,   // DWORD
        int RosSize,   // DWORD
        byte[] Rod,   // BYTE* optional, out
        int RodVersion,   // DWORD
        int RodSize   // DWORD
    );
}

@[Link("iphlpapi")]
lib LibIPHLPAPI
  fun GetPerTcpConnectionEStats = GetPerTcpConnectionEStats(
    Row : MIB_TCPROW_LH*,   # MIB_TCPROW_LH*
    EstatsType : Int32,   # TCP_ESTATS_TYPE
    Rw : UInt8*,   # BYTE* optional, out
    RwVersion : UInt32,   # DWORD
    RwSize : UInt32,   # DWORD
    Ros : UInt8*,   # BYTE* optional, out
    RosVersion : UInt32,   # DWORD
    RosSize : UInt32,   # DWORD
    Rod : UInt8*,   # BYTE* optional, out
    RodVersion : UInt32,   # DWORD
    RodSize : UInt32   # DWORD
  ) : UInt32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef GetPerTcpConnectionEStatsNative = Uint32 Function(Pointer<Void>, Int32, Pointer<Uint8>, Uint32, Uint32, Pointer<Uint8>, Uint32, Uint32, Pointer<Uint8>, Uint32, Uint32);
typedef GetPerTcpConnectionEStatsDart = int Function(Pointer<Void>, int, Pointer<Uint8>, int, int, Pointer<Uint8>, int, int, Pointer<Uint8>, int, int);
final GetPerTcpConnectionEStats = DynamicLibrary.open('IPHLPAPI.dll')
    .lookupFunction<GetPerTcpConnectionEStatsNative, GetPerTcpConnectionEStatsDart>('GetPerTcpConnectionEStats');
// Row : MIB_TCPROW_LH* -> Pointer<Void>
// EstatsType : TCP_ESTATS_TYPE -> Int32
// Rw : BYTE* optional, out -> Pointer<Uint8>
// RwVersion : DWORD -> Uint32
// RwSize : DWORD -> Uint32
// Ros : BYTE* optional, out -> Pointer<Uint8>
// RosVersion : DWORD -> Uint32
// RosSize : DWORD -> Uint32
// Rod : BYTE* optional, out -> Pointer<Uint8>
// RodVersion : DWORD -> Uint32
// RodSize : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetPerTcpConnectionEStats(
  Row: Pointer;   // MIB_TCPROW_LH*
  EstatsType: Integer;   // TCP_ESTATS_TYPE
  Rw: Pointer;   // BYTE* optional, out
  RwVersion: DWORD;   // DWORD
  RwSize: DWORD;   // DWORD
  Ros: Pointer;   // BYTE* optional, out
  RosVersion: DWORD;   // DWORD
  RosSize: DWORD;   // DWORD
  Rod: Pointer;   // BYTE* optional, out
  RodVersion: DWORD;   // DWORD
  RodSize: DWORD   // DWORD
): DWORD; stdcall;
  external 'IPHLPAPI.dll' name 'GetPerTcpConnectionEStats';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GetPerTcpConnectionEStats"
  c_GetPerTcpConnectionEStats :: Ptr () -> Int32 -> Ptr Word8 -> Word32 -> Word32 -> Ptr Word8 -> Word32 -> Word32 -> Ptr Word8 -> Word32 -> Word32 -> IO Word32
-- Row : MIB_TCPROW_LH* -> Ptr ()
-- EstatsType : TCP_ESTATS_TYPE -> Int32
-- Rw : BYTE* optional, out -> Ptr Word8
-- RwVersion : DWORD -> Word32
-- RwSize : DWORD -> Word32
-- Ros : BYTE* optional, out -> Ptr Word8
-- RosVersion : DWORD -> Word32
-- RosSize : DWORD -> Word32
-- Rod : BYTE* optional, out -> Ptr Word8
-- RodVersion : DWORD -> Word32
-- RodSize : DWORD -> Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let getpertcpconnectionestats =
  foreign "GetPerTcpConnectionEStats"
    ((ptr void) @-> int32_t @-> (ptr uint8_t) @-> uint32_t @-> uint32_t @-> (ptr uint8_t) @-> uint32_t @-> uint32_t @-> (ptr uint8_t) @-> uint32_t @-> uint32_t @-> returning uint32_t)
(* Row : MIB_TCPROW_LH* -> (ptr void) *)
(* EstatsType : TCP_ESTATS_TYPE -> int32_t *)
(* Rw : BYTE* optional, out -> (ptr uint8_t) *)
(* RwVersion : DWORD -> uint32_t *)
(* RwSize : DWORD -> uint32_t *)
(* Ros : BYTE* optional, out -> (ptr uint8_t) *)
(* RosVersion : DWORD -> uint32_t *)
(* RosSize : DWORD -> uint32_t *)
(* Rod : BYTE* optional, out -> (ptr uint8_t) *)
(* RodVersion : DWORD -> uint32_t *)
(* RodSize : DWORD -> uint32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library iphlpapi (t "IPHLPAPI.dll"))
(cffi:use-foreign-library iphlpapi)

(cffi:defcfun ("GetPerTcpConnectionEStats" get-per-tcp-connection-estats :convention :stdcall) :uint32
  (row :pointer)   ; MIB_TCPROW_LH*
  (estats-type :int32)   ; TCP_ESTATS_TYPE
  (rw :pointer)   ; BYTE* optional, out
  (rw-version :uint32)   ; DWORD
  (rw-size :uint32)   ; DWORD
  (ros :pointer)   ; BYTE* optional, out
  (ros-version :uint32)   ; DWORD
  (ros-size :uint32)   ; DWORD
  (rod :pointer)   ; BYTE* optional, out
  (rod-version :uint32)   ; DWORD
  (rod-size :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetPerTcpConnectionEStats = Win32::API::More->new('IPHLPAPI',
    'DWORD GetPerTcpConnectionEStats(LPVOID Row, int EstatsType, LPVOID Rw, DWORD RwVersion, DWORD RwSize, LPVOID Ros, DWORD RosVersion, DWORD RosSize, LPVOID Rod, DWORD RodVersion, DWORD RodSize)');
# my $ret = $GetPerTcpConnectionEStats->Call($Row, $EstatsType, $Rw, $RwVersion, $RwSize, $Ros, $RosVersion, $RosSize, $Rod, $RodVersion, $RodSize);
# Row : MIB_TCPROW_LH* -> LPVOID
# EstatsType : TCP_ESTATS_TYPE -> int
# Rw : BYTE* optional, out -> LPVOID
# RwVersion : DWORD -> DWORD
# RwSize : DWORD -> DWORD
# Ros : BYTE* optional, out -> LPVOID
# RosVersion : DWORD -> DWORD
# RosSize : DWORD -> DWORD
# Rod : BYTE* optional, out -> LPVOID
# RodVersion : DWORD -> DWORD
# RodSize : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。