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ForkVirtualDisk
関数仮想ディスクを複製しフォークを作成する。
シグネチャ
// VirtDisk.dll
#include <windows.h>
WIN32_ERROR ForkVirtualDisk(
HANDLE VirtualDiskHandle,
FORK_VIRTUAL_DISK_FLAG Flags,
const FORK_VIRTUAL_DISK_PARAMETERS* Parameters,
OVERLAPPED* Overlapped
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| VirtualDiskHandle | HANDLE | in | フォークする対象の仮想ディスクのハンドル。書き込みを別ファイルへ分岐させる。 |
| Flags | FORK_VIRTUAL_DISK_FLAG | in | フォーク動作を制御するFORK_VIRTUAL_DISK_FLAGのビットフラグ。既存ファイル使用などを指定する。 |
| Parameters | FORK_VIRTUAL_DISK_PARAMETERS* | in | フォーク先パス等を指定するFORK_VIRTUAL_DISK_PARAMETERS構造体へのポインタ。 |
| Overlapped | OVERLAPPED* | inout | 非同期実行用のOVERLAPPED構造体へのポインタ。同期実行する場合はNULL可。 |
戻り値の型: WIN32_ERROR
各言語での呼び出し定義
// VirtDisk.dll
#include <windows.h>
WIN32_ERROR ForkVirtualDisk(
HANDLE VirtualDiskHandle,
FORK_VIRTUAL_DISK_FLAG Flags,
const FORK_VIRTUAL_DISK_PARAMETERS* Parameters,
OVERLAPPED* Overlapped
);[DllImport("VirtDisk.dll", ExactSpelling = true)]
static extern uint ForkVirtualDisk(
IntPtr VirtualDiskHandle, // HANDLE
int Flags, // FORK_VIRTUAL_DISK_FLAG
IntPtr Parameters, // FORK_VIRTUAL_DISK_PARAMETERS*
IntPtr Overlapped // OVERLAPPED* in/out
);<DllImport("VirtDisk.dll", ExactSpelling:=True)>
Public Shared Function ForkVirtualDisk(
VirtualDiskHandle As IntPtr, ' HANDLE
Flags As Integer, ' FORK_VIRTUAL_DISK_FLAG
Parameters As IntPtr, ' FORK_VIRTUAL_DISK_PARAMETERS*
Overlapped As IntPtr ' OVERLAPPED* in/out
) As UInteger
End Function' VirtualDiskHandle : HANDLE
' Flags : FORK_VIRTUAL_DISK_FLAG
' Parameters : FORK_VIRTUAL_DISK_PARAMETERS*
' Overlapped : OVERLAPPED* in/out
Declare PtrSafe Function ForkVirtualDisk Lib "virtdisk" ( _
ByVal VirtualDiskHandle As LongPtr, _
ByVal Flags As Long, _
ByVal Parameters As LongPtr, _
ByVal Overlapped 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
ForkVirtualDisk = ctypes.windll.virtdisk.ForkVirtualDisk
ForkVirtualDisk.restype = wintypes.DWORD
ForkVirtualDisk.argtypes = [
wintypes.HANDLE, # VirtualDiskHandle : HANDLE
ctypes.c_int, # Flags : FORK_VIRTUAL_DISK_FLAG
ctypes.c_void_p, # Parameters : FORK_VIRTUAL_DISK_PARAMETERS*
ctypes.c_void_p, # Overlapped : OVERLAPPED* in/out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('VirtDisk.dll')
ForkVirtualDisk = Fiddle::Function.new(
lib['ForkVirtualDisk'],
[
Fiddle::TYPE_VOIDP, # VirtualDiskHandle : HANDLE
Fiddle::TYPE_INT, # Flags : FORK_VIRTUAL_DISK_FLAG
Fiddle::TYPE_VOIDP, # Parameters : FORK_VIRTUAL_DISK_PARAMETERS*
Fiddle::TYPE_VOIDP, # Overlapped : OVERLAPPED* in/out
],
-Fiddle::TYPE_INT)#[link(name = "virtdisk")]
extern "system" {
fn ForkVirtualDisk(
VirtualDiskHandle: *mut core::ffi::c_void, // HANDLE
Flags: i32, // FORK_VIRTUAL_DISK_FLAG
Parameters: *const FORK_VIRTUAL_DISK_PARAMETERS, // FORK_VIRTUAL_DISK_PARAMETERS*
Overlapped: *mut OVERLAPPED // OVERLAPPED* in/out
) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("VirtDisk.dll")]
public static extern uint ForkVirtualDisk(IntPtr VirtualDiskHandle, int Flags, IntPtr Parameters, IntPtr Overlapped);
"@
$api = Add-Type -MemberDefinition $sig -Name 'VirtDisk_ForkVirtualDisk' -Namespace Win32 -PassThru
# $api::ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)#uselib "VirtDisk.dll"
#func global ForkVirtualDisk "ForkVirtualDisk" sptr, sptr, sptr, sptr
; ForkVirtualDisk VirtualDiskHandle, Flags, varptr(Parameters), varptr(Overlapped) ; 戻り値は stat
; VirtualDiskHandle : HANDLE -> "sptr"
; Flags : FORK_VIRTUAL_DISK_FLAG -> "sptr"
; Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "sptr"
; Overlapped : OVERLAPPED* in/out -> "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。出力引数:
#uselib "VirtDisk.dll" #cfunc global ForkVirtualDisk "ForkVirtualDisk" sptr, int, var, var ; res = ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped) ; VirtualDiskHandle : HANDLE -> "sptr" ; Flags : FORK_VIRTUAL_DISK_FLAG -> "int" ; Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "var" ; Overlapped : OVERLAPPED* in/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。#uselib "VirtDisk.dll" #cfunc global ForkVirtualDisk "ForkVirtualDisk" sptr, int, sptr, sptr ; res = ForkVirtualDisk(VirtualDiskHandle, Flags, varptr(Parameters), varptr(Overlapped)) ; VirtualDiskHandle : HANDLE -> "sptr" ; Flags : FORK_VIRTUAL_DISK_FLAG -> "int" ; Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "sptr" ; Overlapped : OVERLAPPED* in/out -> "sptr" ; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。
出力引数:
; WIN32_ERROR ForkVirtualDisk(HANDLE VirtualDiskHandle, FORK_VIRTUAL_DISK_FLAG Flags, FORK_VIRTUAL_DISK_PARAMETERS* Parameters, OVERLAPPED* Overlapped) #uselib "VirtDisk.dll" #cfunc global ForkVirtualDisk "ForkVirtualDisk" intptr, int, var, var ; res = ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped) ; VirtualDiskHandle : HANDLE -> "intptr" ; Flags : FORK_VIRTUAL_DISK_FLAG -> "int" ; Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "var" ; Overlapped : OVERLAPPED* in/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。; WIN32_ERROR ForkVirtualDisk(HANDLE VirtualDiskHandle, FORK_VIRTUAL_DISK_FLAG Flags, FORK_VIRTUAL_DISK_PARAMETERS* Parameters, OVERLAPPED* Overlapped) #uselib "VirtDisk.dll" #cfunc global ForkVirtualDisk "ForkVirtualDisk" intptr, int, intptr, intptr ; res = ForkVirtualDisk(VirtualDiskHandle, Flags, varptr(Parameters), varptr(Overlapped)) ; VirtualDiskHandle : HANDLE -> "intptr" ; Flags : FORK_VIRTUAL_DISK_FLAG -> "int" ; Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "intptr" ; Overlapped : OVERLAPPED* in/out -> "intptr" ; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。
import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
virtdisk = windows.NewLazySystemDLL("VirtDisk.dll")
procForkVirtualDisk = virtdisk.NewProc("ForkVirtualDisk")
)
// VirtualDiskHandle (HANDLE), Flags (FORK_VIRTUAL_DISK_FLAG), Parameters (FORK_VIRTUAL_DISK_PARAMETERS*), Overlapped (OVERLAPPED* in/out)
r1, _, err := procForkVirtualDisk.Call(
uintptr(VirtualDiskHandle),
uintptr(Flags),
uintptr(Parameters),
uintptr(Overlapped),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // WIN32_ERRORfunction ForkVirtualDisk(
VirtualDiskHandle: THandle; // HANDLE
Flags: Integer; // FORK_VIRTUAL_DISK_FLAG
Parameters: Pointer; // FORK_VIRTUAL_DISK_PARAMETERS*
Overlapped: Pointer // OVERLAPPED* in/out
): DWORD; stdcall;
external 'VirtDisk.dll' name 'ForkVirtualDisk';result := DllCall("VirtDisk\ForkVirtualDisk"
, "Ptr", VirtualDiskHandle ; HANDLE
, "Int", Flags ; FORK_VIRTUAL_DISK_FLAG
, "Ptr", Parameters ; FORK_VIRTUAL_DISK_PARAMETERS*
, "Ptr", Overlapped ; OVERLAPPED* in/out
, "UInt") ; return: WIN32_ERROR●ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped) = DLL("VirtDisk.dll", "dword ForkVirtualDisk(void*, int, void*, void*)")
# 呼び出し: ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)
# VirtualDiskHandle : HANDLE -> "void*"
# Flags : FORK_VIRTUAL_DISK_FLAG -> "int"
# Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "void*"
# Overlapped : OVERLAPPED* in/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 "virtdisk" fn ForkVirtualDisk(
VirtualDiskHandle: ?*anyopaque, // HANDLE
Flags: i32, // FORK_VIRTUAL_DISK_FLAG
Parameters: [*c]FORK_VIRTUAL_DISK_PARAMETERS, // FORK_VIRTUAL_DISK_PARAMETERS*
Overlapped: [*c]OVERLAPPED // OVERLAPPED* in/out
) callconv(std.os.windows.WINAPI) u32;proc ForkVirtualDisk(
VirtualDiskHandle: pointer, # HANDLE
Flags: int32, # FORK_VIRTUAL_DISK_FLAG
Parameters: ptr FORK_VIRTUAL_DISK_PARAMETERS, # FORK_VIRTUAL_DISK_PARAMETERS*
Overlapped: ptr OVERLAPPED # OVERLAPPED* in/out
): uint32 {.importc: "ForkVirtualDisk", stdcall, dynlib: "VirtDisk.dll".}pragma(lib, "virtdisk");
extern(Windows)
uint ForkVirtualDisk(
void* VirtualDiskHandle, // HANDLE
int Flags, // FORK_VIRTUAL_DISK_FLAG
FORK_VIRTUAL_DISK_PARAMETERS* Parameters, // FORK_VIRTUAL_DISK_PARAMETERS*
OVERLAPPED* Overlapped // OVERLAPPED* in/out
);ccall((:ForkVirtualDisk, "VirtDisk.dll"), stdcall, UInt32,
(Ptr{Cvoid}, Int32, Ptr{FORK_VIRTUAL_DISK_PARAMETERS}, Ptr{OVERLAPPED}),
VirtualDiskHandle, Flags, Parameters, Overlapped)
# VirtualDiskHandle : HANDLE -> Ptr{Cvoid}
# Flags : FORK_VIRTUAL_DISK_FLAG -> Int32
# Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> Ptr{FORK_VIRTUAL_DISK_PARAMETERS}
# Overlapped : OVERLAPPED* in/out -> Ptr{OVERLAPPED}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
uint32_t ForkVirtualDisk(
void* VirtualDiskHandle,
int32_t Flags,
void* Parameters,
void* Overlapped);
]]
local virtdisk = ffi.load("virtdisk")
-- virtdisk.ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)
-- VirtualDiskHandle : HANDLE
-- Flags : FORK_VIRTUAL_DISK_FLAG
-- Parameters : FORK_VIRTUAL_DISK_PARAMETERS*
-- Overlapped : OVERLAPPED* in/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('VirtDisk.dll');
const ForkVirtualDisk = lib.func('__stdcall', 'ForkVirtualDisk', 'uint32_t', ['void *', 'int32_t', 'void *', 'void *']);
// ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)
// VirtualDiskHandle : HANDLE -> 'void *'
// Flags : FORK_VIRTUAL_DISK_FLAG -> 'int32_t'
// Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> 'void *'
// Overlapped : OVERLAPPED* in/out -> 'void *'
// 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("VirtDisk.dll", {
ForkVirtualDisk: { parameters: ["pointer", "i32", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)
// VirtualDiskHandle : HANDLE -> "pointer"
// Flags : FORK_VIRTUAL_DISK_FLAG -> "i32"
// Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "pointer"
// Overlapped : OVERLAPPED* in/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
uint32_t ForkVirtualDisk(
void* VirtualDiskHandle,
int32_t Flags,
void* Parameters,
void* Overlapped);
C, "VirtDisk.dll");
// $ffi->ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped);
// VirtualDiskHandle : HANDLE
// Flags : FORK_VIRTUAL_DISK_FLAG
// Parameters : FORK_VIRTUAL_DISK_PARAMETERS*
// Overlapped : OVERLAPPED* in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Virtdisk extends StdCallLibrary {
Virtdisk INSTANCE = Native.load("virtdisk", Virtdisk.class);
int ForkVirtualDisk(
Pointer VirtualDiskHandle, // HANDLE
int Flags, // FORK_VIRTUAL_DISK_FLAG
Pointer Parameters, // FORK_VIRTUAL_DISK_PARAMETERS*
Pointer Overlapped // OVERLAPPED* in/out
);
}@[Link("virtdisk")]
lib LibVirtDisk
fun ForkVirtualDisk = ForkVirtualDisk(
VirtualDiskHandle : Void*, # HANDLE
Flags : Int32, # FORK_VIRTUAL_DISK_FLAG
Parameters : FORK_VIRTUAL_DISK_PARAMETERS*, # FORK_VIRTUAL_DISK_PARAMETERS*
Overlapped : OVERLAPPED* # OVERLAPPED* in/out
) : UInt32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef ForkVirtualDiskNative = Uint32 Function(Pointer<Void>, Int32, Pointer<Void>, Pointer<Void>);
typedef ForkVirtualDiskDart = int Function(Pointer<Void>, int, Pointer<Void>, Pointer<Void>);
final ForkVirtualDisk = DynamicLibrary.open('VirtDisk.dll')
.lookupFunction<ForkVirtualDiskNative, ForkVirtualDiskDart>('ForkVirtualDisk');
// VirtualDiskHandle : HANDLE -> Pointer<Void>
// Flags : FORK_VIRTUAL_DISK_FLAG -> Int32
// Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> Pointer<Void>
// Overlapped : OVERLAPPED* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function ForkVirtualDisk(
VirtualDiskHandle: THandle; // HANDLE
Flags: Integer; // FORK_VIRTUAL_DISK_FLAG
Parameters: Pointer; // FORK_VIRTUAL_DISK_PARAMETERS*
Overlapped: Pointer // OVERLAPPED* in/out
): DWORD; stdcall;
external 'VirtDisk.dll' name 'ForkVirtualDisk';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "ForkVirtualDisk"
c_ForkVirtualDisk :: Ptr () -> Int32 -> Ptr () -> Ptr () -> IO Word32
-- VirtualDiskHandle : HANDLE -> Ptr ()
-- Flags : FORK_VIRTUAL_DISK_FLAG -> Int32
-- Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> Ptr ()
-- Overlapped : OVERLAPPED* in/out -> Ptr ()
-- 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 forkvirtualdisk =
foreign "ForkVirtualDisk"
((ptr void) @-> int32_t @-> (ptr void) @-> (ptr void) @-> returning uint32_t)
(* VirtualDiskHandle : HANDLE -> (ptr void) *)
(* Flags : FORK_VIRTUAL_DISK_FLAG -> int32_t *)
(* Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> (ptr void) *)
(* Overlapped : OVERLAPPED* in/out -> (ptr void) *)
(* 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 virtdisk (t "VirtDisk.dll"))
(cffi:use-foreign-library virtdisk)
(cffi:defcfun ("ForkVirtualDisk" fork-virtual-disk :convention :stdcall) :uint32
(virtual-disk-handle :pointer) ; HANDLE
(flags :int32) ; FORK_VIRTUAL_DISK_FLAG
(parameters :pointer) ; FORK_VIRTUAL_DISK_PARAMETERS*
(overlapped :pointer)) ; OVERLAPPED* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $ForkVirtualDisk = Win32::API::More->new('VirtDisk',
'DWORD ForkVirtualDisk(HANDLE VirtualDiskHandle, int Flags, LPVOID Parameters, LPVOID Overlapped)');
# my $ret = $ForkVirtualDisk->Call($VirtualDiskHandle, $Flags, $Parameters, $Overlapped);
# VirtualDiskHandle : HANDLE -> HANDLE
# Flags : FORK_VIRTUAL_DISK_FLAG -> int
# Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> LPVOID
# Overlapped : OVERLAPPED* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。