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WHvGetVpciDeviceInterruptTarget

関数
仮想PCIデバイスの割り込みターゲット情報を取得する。
DLLWinHvPlatform.dll呼出規約winapi

シグネチャ

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

HRESULT WHvGetVpciDeviceInterruptTarget(
    WHV_PARTITION_HANDLE Partition,
    ULONGLONG LogicalDeviceId,
    DWORD Index,
    DWORD MultiMessageNumber,
    WHV_VPCI_INTERRUPT_TARGET* Target,
    DWORD TargetSizeInBytes,
    DWORD* BytesWritten   // optional
);

パラメーター

名前型方向説明
PartitionWHV_PARTITION_HANDLEin対象パーティションのハンドルを指定する。
LogicalDeviceIdULONGLONGin対象とする仮想PCIデバイスの論理デバイスIDを指定する。
IndexDWORDin対象とする割り込みのインデックスを指定する。
MultiMessageNumberDWORDinマルチメッセージMSIにおける個別メッセージ番号を指定する。
TargetWHV_VPCI_INTERRUPT_TARGET*out現在の割り込み配信先情報を受け取る構造体へのポインタ。
TargetSizeInBytesDWORDinTargetバッファのバイト単位のサイズを指定する。
BytesWrittenDWORD*outoptional実際に書き込まれたバイト数を受け取る出力ポインタ。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT WHvGetVpciDeviceInterruptTarget(
    WHV_PARTITION_HANDLE Partition,
    ULONGLONG LogicalDeviceId,
    DWORD Index,
    DWORD MultiMessageNumber,
    WHV_VPCI_INTERRUPT_TARGET* Target,
    DWORD TargetSizeInBytes,
    DWORD* BytesWritten   // optional
);
[DllImport("WinHvPlatform.dll", ExactSpelling = true)]
static extern int WHvGetVpciDeviceInterruptTarget(
    IntPtr Partition,   // WHV_PARTITION_HANDLE
    ulong LogicalDeviceId,   // ULONGLONG
    uint Index,   // DWORD
    uint MultiMessageNumber,   // DWORD
    IntPtr Target,   // WHV_VPCI_INTERRUPT_TARGET* out
    uint TargetSizeInBytes,   // DWORD
    IntPtr BytesWritten   // DWORD* optional, out
);
<DllImport("WinHvPlatform.dll", ExactSpelling:=True)>
Public Shared Function WHvGetVpciDeviceInterruptTarget(
    Partition As IntPtr,   ' WHV_PARTITION_HANDLE
    LogicalDeviceId As ULong,   ' ULONGLONG
    Index As UInteger,   ' DWORD
    MultiMessageNumber As UInteger,   ' DWORD
    Target As IntPtr,   ' WHV_VPCI_INTERRUPT_TARGET* out
    TargetSizeInBytes As UInteger,   ' DWORD
    BytesWritten As IntPtr   ' DWORD* optional, out
) As Integer
End Function
' Partition : WHV_PARTITION_HANDLE
' LogicalDeviceId : ULONGLONG
' Index : DWORD
' MultiMessageNumber : DWORD
' Target : WHV_VPCI_INTERRUPT_TARGET* out
' TargetSizeInBytes : DWORD
' BytesWritten : DWORD* optional, out
Declare PtrSafe Function WHvGetVpciDeviceInterruptTarget Lib "winhvplatform" ( _
    ByVal Partition As LongPtr, _
    ByVal LogicalDeviceId As LongLong, _
    ByVal Index As Long, _
    ByVal MultiMessageNumber As Long, _
    ByVal Target As LongPtr, _
    ByVal TargetSizeInBytes As Long, _
    ByVal BytesWritten As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

WHvGetVpciDeviceInterruptTarget = ctypes.windll.winhvplatform.WHvGetVpciDeviceInterruptTarget
WHvGetVpciDeviceInterruptTarget.restype = ctypes.c_int
WHvGetVpciDeviceInterruptTarget.argtypes = [
    ctypes.c_ssize_t,  # Partition : WHV_PARTITION_HANDLE
    ctypes.c_ulonglong,  # LogicalDeviceId : ULONGLONG
    wintypes.DWORD,  # Index : DWORD
    wintypes.DWORD,  # MultiMessageNumber : DWORD
    ctypes.c_void_p,  # Target : WHV_VPCI_INTERRUPT_TARGET* out
    wintypes.DWORD,  # TargetSizeInBytes : DWORD
    ctypes.POINTER(wintypes.DWORD),  # BytesWritten : DWORD* optional, out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WinHvPlatform.dll')
WHvGetVpciDeviceInterruptTarget = Fiddle::Function.new(
  lib['WHvGetVpciDeviceInterruptTarget'],
  [
    Fiddle::TYPE_INTPTR_T,  # Partition : WHV_PARTITION_HANDLE
    -Fiddle::TYPE_LONG_LONG,  # LogicalDeviceId : ULONGLONG
    -Fiddle::TYPE_INT,  # Index : DWORD
    -Fiddle::TYPE_INT,  # MultiMessageNumber : DWORD
    Fiddle::TYPE_VOIDP,  # Target : WHV_VPCI_INTERRUPT_TARGET* out
    -Fiddle::TYPE_INT,  # TargetSizeInBytes : DWORD
    Fiddle::TYPE_VOIDP,  # BytesWritten : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)
#[link(name = "winhvplatform")]
extern "system" {
    fn WHvGetVpciDeviceInterruptTarget(
        Partition: isize,  // WHV_PARTITION_HANDLE
        LogicalDeviceId: u64,  // ULONGLONG
        Index: u32,  // DWORD
        MultiMessageNumber: u32,  // DWORD
        Target: *mut WHV_VPCI_INTERRUPT_TARGET,  // WHV_VPCI_INTERRUPT_TARGET* out
        TargetSizeInBytes: u32,  // DWORD
        BytesWritten: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("WinHvPlatform.dll")]
public static extern int WHvGetVpciDeviceInterruptTarget(IntPtr Partition, ulong LogicalDeviceId, uint Index, uint MultiMessageNumber, IntPtr Target, uint TargetSizeInBytes, IntPtr BytesWritten);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WinHvPlatform_WHvGetVpciDeviceInterruptTarget' -Namespace Win32 -PassThru
# $api::WHvGetVpciDeviceInterruptTarget(Partition, LogicalDeviceId, Index, MultiMessageNumber, Target, TargetSizeInBytes, BytesWritten)
#uselib "WinHvPlatform.dll"
#func global WHvGetVpciDeviceInterruptTarget "WHvGetVpciDeviceInterruptTarget" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; WHvGetVpciDeviceInterruptTarget Partition, LogicalDeviceId, Index, MultiMessageNumber, varptr(Target), TargetSizeInBytes, varptr(BytesWritten)   ; 戻り値は stat
; Partition : WHV_PARTITION_HANDLE -> "sptr"
; LogicalDeviceId : ULONGLONG -> "sptr"
; Index : DWORD -> "sptr"
; MultiMessageNumber : DWORD -> "sptr"
; Target : WHV_VPCI_INTERRUPT_TARGET* out -> "sptr"
; TargetSizeInBytes : DWORD -> "sptr"
; BytesWritten : DWORD* optional, out -> "sptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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。
出力引数: 
#uselib "WinHvPlatform.dll"
#cfunc global WHvGetVpciDeviceInterruptTarget "WHvGetVpciDeviceInterruptTarget" sptr, int64, int, int, var, int, var
; res = WHvGetVpciDeviceInterruptTarget(Partition, LogicalDeviceId, Index, MultiMessageNumber, Target, TargetSizeInBytes, BytesWritten)
; Partition : WHV_PARTITION_HANDLE -> "sptr"
; LogicalDeviceId : ULONGLONG -> "int64"
; Index : DWORD -> "int"
; MultiMessageNumber : DWORD -> "int"
; Target : WHV_VPCI_INTERRUPT_TARGET* out -> "var"
; TargetSizeInBytes : DWORD -> "int"
; BytesWritten : DWORD* optional, out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。
出力引数: 
; HRESULT WHvGetVpciDeviceInterruptTarget(WHV_PARTITION_HANDLE Partition, ULONGLONG LogicalDeviceId, DWORD Index, DWORD MultiMessageNumber, WHV_VPCI_INTERRUPT_TARGET* Target, DWORD TargetSizeInBytes, DWORD* BytesWritten)
#uselib "WinHvPlatform.dll"
#cfunc global WHvGetVpciDeviceInterruptTarget "WHvGetVpciDeviceInterruptTarget" intptr, int64, int, int, var, int, var
; res = WHvGetVpciDeviceInterruptTarget(Partition, LogicalDeviceId, Index, MultiMessageNumber, Target, TargetSizeInBytes, BytesWritten)
; Partition : WHV_PARTITION_HANDLE -> "intptr"
; LogicalDeviceId : ULONGLONG -> "int64"
; Index : DWORD -> "int"
; MultiMessageNumber : DWORD -> "int"
; Target : WHV_VPCI_INTERRUPT_TARGET* out -> "var"
; TargetSizeInBytes : DWORD -> "int"
; BytesWritten : DWORD* optional, out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	winhvplatform = windows.NewLazySystemDLL("WinHvPlatform.dll")
	procWHvGetVpciDeviceInterruptTarget = winhvplatform.NewProc("WHvGetVpciDeviceInterruptTarget")
)

// Partition (WHV_PARTITION_HANDLE), LogicalDeviceId (ULONGLONG), Index (DWORD), MultiMessageNumber (DWORD), Target (WHV_VPCI_INTERRUPT_TARGET* out), TargetSizeInBytes (DWORD), BytesWritten (DWORD* optional, out)
r1, _, err := procWHvGetVpciDeviceInterruptTarget.Call(
	uintptr(Partition),
	uintptr(LogicalDeviceId),
	uintptr(Index),
	uintptr(MultiMessageNumber),
	uintptr(Target),
	uintptr(TargetSizeInBytes),
	uintptr(BytesWritten),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function WHvGetVpciDeviceInterruptTarget(
  Partition: NativeInt;   // WHV_PARTITION_HANDLE
  LogicalDeviceId: UInt64;   // ULONGLONG
  Index: DWORD;   // DWORD
  MultiMessageNumber: DWORD;   // DWORD
  Target: Pointer;   // WHV_VPCI_INTERRUPT_TARGET* out
  TargetSizeInBytes: DWORD;   // DWORD
  BytesWritten: Pointer   // DWORD* optional, out
): Integer; stdcall;
  external 'WinHvPlatform.dll' name 'WHvGetVpciDeviceInterruptTarget';
result := DllCall("WinHvPlatform\WHvGetVpciDeviceInterruptTarget"
    , "Ptr", Partition   ; WHV_PARTITION_HANDLE
    , "Int64", LogicalDeviceId   ; ULONGLONG
    , "UInt", Index   ; DWORD
    , "UInt", MultiMessageNumber   ; DWORD
    , "Ptr", Target   ; WHV_VPCI_INTERRUPT_TARGET* out
    , "UInt", TargetSizeInBytes   ; DWORD
    , "Ptr", BytesWritten   ; DWORD* optional, out
    , "Int")   ; return: HRESULT
●WHvGetVpciDeviceInterruptTarget(Partition, LogicalDeviceId, Index, MultiMessageNumber, Target, TargetSizeInBytes, BytesWritten) = DLL("WinHvPlatform.dll", "int WHvGetVpciDeviceInterruptTarget(int, qword, dword, dword, void*, dword, void*)")
# 呼び出し: WHvGetVpciDeviceInterruptTarget(Partition, LogicalDeviceId, Index, MultiMessageNumber, Target, TargetSizeInBytes, BytesWritten)
# Partition : WHV_PARTITION_HANDLE -> "int"
# LogicalDeviceId : ULONGLONG -> "qword"
# Index : DWORD -> "dword"
# MultiMessageNumber : DWORD -> "dword"
# Target : WHV_VPCI_INTERRUPT_TARGET* out -> "void*"
# TargetSizeInBytes : DWORD -> "dword"
# BytesWritten : DWORD* optional, out -> "void*"
# 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 "winhvplatform" fn WHvGetVpciDeviceInterruptTarget(
    Partition: isize, // WHV_PARTITION_HANDLE
    LogicalDeviceId: u64, // ULONGLONG
    Index: u32, // DWORD
    MultiMessageNumber: u32, // DWORD
    Target: [*c]WHV_VPCI_INTERRUPT_TARGET, // WHV_VPCI_INTERRUPT_TARGET* out
    TargetSizeInBytes: u32, // DWORD
    BytesWritten: [*c]u32 // DWORD* optional, out
) callconv(std.os.windows.WINAPI) i32;
proc WHvGetVpciDeviceInterruptTarget(
    Partition: int,  # WHV_PARTITION_HANDLE
    LogicalDeviceId: uint64,  # ULONGLONG
    Index: uint32,  # DWORD
    MultiMessageNumber: uint32,  # DWORD
    Target: ptr WHV_VPCI_INTERRUPT_TARGET,  # WHV_VPCI_INTERRUPT_TARGET* out
    TargetSizeInBytes: uint32,  # DWORD
    BytesWritten: ptr uint32  # DWORD* optional, out
): int32 {.importc: "WHvGetVpciDeviceInterruptTarget", stdcall, dynlib: "WinHvPlatform.dll".}
pragma(lib, "winhvplatform");
extern(Windows)
int WHvGetVpciDeviceInterruptTarget(
    ptrdiff_t Partition,   // WHV_PARTITION_HANDLE
    ulong LogicalDeviceId,   // ULONGLONG
    uint Index,   // DWORD
    uint MultiMessageNumber,   // DWORD
    WHV_VPCI_INTERRUPT_TARGET* Target,   // WHV_VPCI_INTERRUPT_TARGET* out
    uint TargetSizeInBytes,   // DWORD
    uint* BytesWritten   // DWORD* optional, out
);
ccall((:WHvGetVpciDeviceInterruptTarget, "WinHvPlatform.dll"), stdcall, Int32,
      (Int, UInt64, UInt32, UInt32, Ptr{WHV_VPCI_INTERRUPT_TARGET}, UInt32, Ptr{UInt32}),
      Partition, LogicalDeviceId, Index, MultiMessageNumber, Target, TargetSizeInBytes, BytesWritten)
# Partition : WHV_PARTITION_HANDLE -> Int
# LogicalDeviceId : ULONGLONG -> UInt64
# Index : DWORD -> UInt32
# MultiMessageNumber : DWORD -> UInt32
# Target : WHV_VPCI_INTERRUPT_TARGET* out -> Ptr{WHV_VPCI_INTERRUPT_TARGET}
# TargetSizeInBytes : DWORD -> UInt32
# BytesWritten : DWORD* optional, out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t WHvGetVpciDeviceInterruptTarget(
    intptr_t Partition,
    uint64_t LogicalDeviceId,
    uint32_t Index,
    uint32_t MultiMessageNumber,
    void* Target,
    uint32_t TargetSizeInBytes,
    uint32_t* BytesWritten);
]]
local winhvplatform = ffi.load("winhvplatform")
-- winhvplatform.WHvGetVpciDeviceInterruptTarget(Partition, LogicalDeviceId, Index, MultiMessageNumber, Target, TargetSizeInBytes, BytesWritten)
-- Partition : WHV_PARTITION_HANDLE
-- LogicalDeviceId : ULONGLONG
-- Index : DWORD
-- MultiMessageNumber : DWORD
-- Target : WHV_VPCI_INTERRUPT_TARGET* out
-- TargetSizeInBytes : DWORD
-- BytesWritten : DWORD* optional, out
-- 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('WinHvPlatform.dll');
const WHvGetVpciDeviceInterruptTarget = lib.func('__stdcall', 'WHvGetVpciDeviceInterruptTarget', 'int32_t', ['intptr_t', 'uint64_t', 'uint32_t', 'uint32_t', 'void *', 'uint32_t', 'uint32_t *']);
// WHvGetVpciDeviceInterruptTarget(Partition, LogicalDeviceId, Index, MultiMessageNumber, Target, TargetSizeInBytes, BytesWritten)
// Partition : WHV_PARTITION_HANDLE -> 'intptr_t'
// LogicalDeviceId : ULONGLONG -> 'uint64_t'
// Index : DWORD -> 'uint32_t'
// MultiMessageNumber : DWORD -> 'uint32_t'
// Target : WHV_VPCI_INTERRUPT_TARGET* out -> 'void *'
// TargetSizeInBytes : DWORD -> 'uint32_t'
// BytesWritten : DWORD* optional, out -> '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("WinHvPlatform.dll", {
  WHvGetVpciDeviceInterruptTarget: { parameters: ["isize", "u64", "u32", "u32", "pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.WHvGetVpciDeviceInterruptTarget(Partition, LogicalDeviceId, Index, MultiMessageNumber, Target, TargetSizeInBytes, BytesWritten)
// Partition : WHV_PARTITION_HANDLE -> "isize"
// LogicalDeviceId : ULONGLONG -> "u64"
// Index : DWORD -> "u32"
// MultiMessageNumber : DWORD -> "u32"
// Target : WHV_VPCI_INTERRUPT_TARGET* out -> "pointer"
// TargetSizeInBytes : DWORD -> "u32"
// BytesWritten : DWORD* optional, out -> "pointer"
// 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
int32_t WHvGetVpciDeviceInterruptTarget(
    intptr_t Partition,
    uint64_t LogicalDeviceId,
    uint32_t Index,
    uint32_t MultiMessageNumber,
    void* Target,
    uint32_t TargetSizeInBytes,
    uint32_t* BytesWritten);
C, "WinHvPlatform.dll");
// $ffi->WHvGetVpciDeviceInterruptTarget(Partition, LogicalDeviceId, Index, MultiMessageNumber, Target, TargetSizeInBytes, BytesWritten);
// Partition : WHV_PARTITION_HANDLE
// LogicalDeviceId : ULONGLONG
// Index : DWORD
// MultiMessageNumber : DWORD
// Target : WHV_VPCI_INTERRUPT_TARGET* out
// TargetSizeInBytes : DWORD
// BytesWritten : DWORD* optional, out
// 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 Winhvplatform extends StdCallLibrary {
    Winhvplatform INSTANCE = Native.load("winhvplatform", Winhvplatform.class);
    int WHvGetVpciDeviceInterruptTarget(
        long Partition,   // WHV_PARTITION_HANDLE
        long LogicalDeviceId,   // ULONGLONG
        int Index,   // DWORD
        int MultiMessageNumber,   // DWORD
        Pointer Target,   // WHV_VPCI_INTERRUPT_TARGET* out
        int TargetSizeInBytes,   // DWORD
        IntByReference BytesWritten   // DWORD* optional, out
    );
}
@[Link("winhvplatform")]
lib LibWinHvPlatform
  fun WHvGetVpciDeviceInterruptTarget = WHvGetVpciDeviceInterruptTarget(
    Partition : LibC::SSizeT,   # WHV_PARTITION_HANDLE
    LogicalDeviceId : UInt64,   # ULONGLONG
    Index : UInt32,   # DWORD
    MultiMessageNumber : UInt32,   # DWORD
    Target : WHV_VPCI_INTERRUPT_TARGET*,   # WHV_VPCI_INTERRUPT_TARGET* out
    TargetSizeInBytes : UInt32,   # DWORD
    BytesWritten : UInt32*   # DWORD* optional, out
  ) : Int32
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 WHvGetVpciDeviceInterruptTargetNative = Int32 Function(IntPtr, Uint64, Uint32, Uint32, Pointer<Void>, Uint32, Pointer<Uint32>);
typedef WHvGetVpciDeviceInterruptTargetDart = int Function(int, int, int, int, Pointer<Void>, int, Pointer<Uint32>);
final WHvGetVpciDeviceInterruptTarget = DynamicLibrary.open('WinHvPlatform.dll')
    .lookupFunction<WHvGetVpciDeviceInterruptTargetNative, WHvGetVpciDeviceInterruptTargetDart>('WHvGetVpciDeviceInterruptTarget');
// Partition : WHV_PARTITION_HANDLE -> IntPtr
// LogicalDeviceId : ULONGLONG -> Uint64
// Index : DWORD -> Uint32
// MultiMessageNumber : DWORD -> Uint32
// Target : WHV_VPCI_INTERRUPT_TARGET* out -> Pointer<Void>
// TargetSizeInBytes : DWORD -> Uint32
// BytesWritten : DWORD* optional, out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function WHvGetVpciDeviceInterruptTarget(
  Partition: NativeInt;   // WHV_PARTITION_HANDLE
  LogicalDeviceId: UInt64;   // ULONGLONG
  Index: DWORD;   // DWORD
  MultiMessageNumber: DWORD;   // DWORD
  Target: Pointer;   // WHV_VPCI_INTERRUPT_TARGET* out
  TargetSizeInBytes: DWORD;   // DWORD
  BytesWritten: Pointer   // DWORD* optional, out
): Integer; stdcall;
  external 'WinHvPlatform.dll' name 'WHvGetVpciDeviceInterruptTarget';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "WHvGetVpciDeviceInterruptTarget"
  c_WHvGetVpciDeviceInterruptTarget :: CIntPtr -> Word64 -> Word32 -> Word32 -> Ptr () -> Word32 -> Ptr Word32 -> IO Int32
-- Partition : WHV_PARTITION_HANDLE -> CIntPtr
-- LogicalDeviceId : ULONGLONG -> Word64
-- Index : DWORD -> Word32
-- MultiMessageNumber : DWORD -> Word32
-- Target : WHV_VPCI_INTERRUPT_TARGET* out -> Ptr ()
-- TargetSizeInBytes : DWORD -> Word32
-- BytesWritten : DWORD* optional, out -> Ptr 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 whvgetvpcideviceinterrupttarget =
  foreign "WHvGetVpciDeviceInterruptTarget"
    (intptr_t @-> uint64_t @-> uint32_t @-> uint32_t @-> (ptr void) @-> uint32_t @-> (ptr uint32_t) @-> returning int32_t)
(* Partition : WHV_PARTITION_HANDLE -> intptr_t *)
(* LogicalDeviceId : ULONGLONG -> uint64_t *)
(* Index : DWORD -> uint32_t *)
(* MultiMessageNumber : DWORD -> uint32_t *)
(* Target : WHV_VPCI_INTERRUPT_TARGET* out -> (ptr void) *)
(* TargetSizeInBytes : DWORD -> uint32_t *)
(* BytesWritten : DWORD* optional, out -> (ptr 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 winhvplatform (t "WinHvPlatform.dll"))
(cffi:use-foreign-library winhvplatform)

(cffi:defcfun ("WHvGetVpciDeviceInterruptTarget" whv-get-vpci-device-interrupt-target :convention :stdcall) :int32
  (partition :int64)   ; WHV_PARTITION_HANDLE
  (logical-device-id :uint64)   ; ULONGLONG
  (index :uint32)   ; DWORD
  (multi-message-number :uint32)   ; DWORD
  (target :pointer)   ; WHV_VPCI_INTERRUPT_TARGET* out
  (target-size-in-bytes :uint32)   ; DWORD
  (bytes-written :pointer))   ; DWORD* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $WHvGetVpciDeviceInterruptTarget = Win32::API::More->new('WinHvPlatform',
    'int WHvGetVpciDeviceInterruptTarget(LPARAM Partition, UINT64 LogicalDeviceId, DWORD Index, DWORD MultiMessageNumber, LPVOID Target, DWORD TargetSizeInBytes, LPVOID BytesWritten)');
# my $ret = $WHvGetVpciDeviceInterruptTarget->Call($Partition, $LogicalDeviceId, $Index, $MultiMessageNumber, $Target, $TargetSizeInBytes, $BytesWritten);
# Partition : WHV_PARTITION_HANDLE -> LPARAM
# LogicalDeviceId : ULONGLONG -> UINT64
# Index : DWORD -> DWORD
# MultiMessageNumber : DWORD -> DWORD
# Target : WHV_VPCI_INTERRUPT_TARGET* out -> LPVOID
# TargetSizeInBytes : DWORD -> DWORD
# BytesWritten : DWORD* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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