USN_RECORD_UNION

共用体

サイズx64: 80 バイト / x86: 80 バイト

サイズ=各フィールドのバイト数(x64/x86 で異なる場合は x64/x86 と併記)。x64/x86 列=フィールドのバイトオフセット(HSPで dupptr / lpoke / wpoke 等に使用)。

フィールド

フィールド	型	サイズ	x64	x86	説明
Header	USN_RECORD_COMMON_HEADER	8	+0	+0	全USNレコード版に共通する先頭ヘッダ。RecordLengthとMajor/MinorVersionを保持し版を判別する。
V2	USN_RECORD_V2	64	+0	+0	バージョン2形式のUSNレコード。ファイル名をWCHARで持つ従来形式である。
V3	USN_RECORD_V3	80	+0	+0	バージョン3形式のUSNレコード。128ビットのファイル参照番号(FILE_ID_128)を使用する。
V4	USN_RECORD_V4	80	+0	+0	バージョン4形式のUSNレコード。ReFSのレンジトラッキング用で範囲情報を含む。

各言語での定義

#include <windows.h>

// USN_RECORD_COMMON_HEADER  (x64 8 / x86 8 バイト)
typedef struct USN_RECORD_COMMON_HEADER {
    DWORD RecordLength;
    WORD MajorVersion;
    WORD MinorVersion;
} USN_RECORD_COMMON_HEADER;

// USN_RECORD_V2  (x64 64 / x86 64 バイト)
typedef struct USN_RECORD_V2 {
    DWORD RecordLength;
    WORD MajorVersion;
    WORD MinorVersion;
    ULONGLONG FileReferenceNumber;
    ULONGLONG ParentFileReferenceNumber;
    LONGLONG Usn;
    LONGLONG TimeStamp;
    DWORD Reason;
    DWORD SourceInfo;
    DWORD SecurityId;
    DWORD FileAttributes;
    WORD FileNameLength;
    WORD FileNameOffset;
    WCHAR FileName[1];
} USN_RECORD_V2;

// FILE_ID_128  (x64 16 / x86 16 バイト)
typedef struct FILE_ID_128 {
    BYTE Identifier[16];
} FILE_ID_128;

// USN_RECORD_V3  (x64 80 / x86 80 バイト)
typedef struct USN_RECORD_V3 {
    DWORD RecordLength;
    WORD MajorVersion;
    WORD MinorVersion;
    FILE_ID_128 FileReferenceNumber;
    FILE_ID_128 ParentFileReferenceNumber;
    LONGLONG Usn;
    LONGLONG TimeStamp;
    DWORD Reason;
    DWORD SourceInfo;
    DWORD SecurityId;
    DWORD FileAttributes;
    WORD FileNameLength;
    WORD FileNameOffset;
    WCHAR FileName[1];
} USN_RECORD_V3;

// USN_RECORD_EXTENT  (x64 16 / x86 16 バイト)
typedef struct USN_RECORD_EXTENT {
    LONGLONG Offset;
    LONGLONG Length;
} USN_RECORD_EXTENT;

// USN_RECORD_V4  (x64 80 / x86 80 バイト)
typedef struct USN_RECORD_V4 {
    USN_RECORD_COMMON_HEADER Header;
    FILE_ID_128 FileReferenceNumber;
    FILE_ID_128 ParentFileReferenceNumber;
    LONGLONG Usn;
    DWORD Reason;
    USN_SOURCE_INFO_ID SourceInfo;
    DWORD RemainingExtents;
    WORD NumberOfExtents;
    WORD ExtentSize;
    USN_RECORD_EXTENT Extents[1];
} USN_RECORD_V4;

// USN_RECORD_UNION  (x64 80 / x86 80 バイト)
typedef struct USN_RECORD_UNION {
    USN_RECORD_COMMON_HEADER Header;
    USN_RECORD_V2 V2;
    USN_RECORD_V3 V3;
    USN_RECORD_V4 V4;
} USN_RECORD_UNION;

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct USN_RECORD_COMMON_HEADER
{
    public uint RecordLength;
    public ushort MajorVersion;
    public ushort MinorVersion;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct USN_RECORD_V2
{
    public uint RecordLength;
    public ushort MajorVersion;
    public ushort MinorVersion;
    public ulong FileReferenceNumber;
    public ulong ParentFileReferenceNumber;
    public long Usn;
    public long TimeStamp;
    public uint Reason;
    public uint SourceInfo;
    public uint SecurityId;
    public uint FileAttributes;
    public ushort FileNameLength;
    public ushort FileNameOffset;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 1)] public string FileName;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct FILE_ID_128
{
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)] public byte[] Identifier;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct USN_RECORD_V3
{
    public uint RecordLength;
    public ushort MajorVersion;
    public ushort MinorVersion;
    public FILE_ID_128 FileReferenceNumber;
    public FILE_ID_128 ParentFileReferenceNumber;
    public long Usn;
    public long TimeStamp;
    public uint Reason;
    public uint SourceInfo;
    public uint SecurityId;
    public uint FileAttributes;
    public ushort FileNameLength;
    public ushort FileNameOffset;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 1)] public string FileName;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct USN_RECORD_EXTENT
{
    public long Offset;
    public long Length;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct USN_RECORD_V4
{
    public USN_RECORD_COMMON_HEADER Header;
    public FILE_ID_128 FileReferenceNumber;
    public FILE_ID_128 ParentFileReferenceNumber;
    public long Usn;
    public uint Reason;
    public uint SourceInfo;
    public uint RemainingExtents;
    public ushort NumberOfExtents;
    public ushort ExtentSize;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public USN_RECORD_EXTENT[] Extents;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct USN_RECORD_UNION
{
    public USN_RECORD_COMMON_HEADER Header;
    public USN_RECORD_V2 V2;
    public USN_RECORD_V3 V3;
    public USN_RECORD_V4 V4;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure USN_RECORD_COMMON_HEADER
    Public RecordLength As UInteger
    Public MajorVersion As UShort
    Public MinorVersion As UShort
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure USN_RECORD_V2
    Public RecordLength As UInteger
    Public MajorVersion As UShort
    Public MinorVersion As UShort
    Public FileReferenceNumber As ULong
    Public ParentFileReferenceNumber As ULong
    Public Usn As Long
    Public TimeStamp As Long
    Public Reason As UInteger
    Public SourceInfo As UInteger
    Public SecurityId As UInteger
    Public FileAttributes As UInteger
    Public FileNameLength As UShort
    Public FileNameOffset As UShort
    <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=1)> Public FileName As String
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure FILE_ID_128
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=16)> Public Identifier() As Byte
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure USN_RECORD_V3
    Public RecordLength As UInteger
    Public MajorVersion As UShort
    Public MinorVersion As UShort
    Public FileReferenceNumber As FILE_ID_128
    Public ParentFileReferenceNumber As FILE_ID_128
    Public Usn As Long
    Public TimeStamp As Long
    Public Reason As UInteger
    Public SourceInfo As UInteger
    Public SecurityId As UInteger
    Public FileAttributes As UInteger
    Public FileNameLength As UShort
    Public FileNameOffset As UShort
    <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=1)> Public FileName As String
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure USN_RECORD_EXTENT
    Public Offset As Long
    Public Length As Long
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure USN_RECORD_V4
    Public Header As USN_RECORD_COMMON_HEADER
    Public FileReferenceNumber As FILE_ID_128
    Public ParentFileReferenceNumber As FILE_ID_128
    Public Usn As Long
    Public Reason As UInteger
    Public SourceInfo As UInteger
    Public RemainingExtents As UInteger
    Public NumberOfExtents As UShort
    Public ExtentSize As UShort
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=1)> Public Extents() As USN_RECORD_EXTENT
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure USN_RECORD_UNION
    Public Header As USN_RECORD_COMMON_HEADER
    Public V2 As USN_RECORD_V2
    Public V3 As USN_RECORD_V3
    Public V4 As USN_RECORD_V4
End Structure

import ctypes
from ctypes import wintypes

class USN_RECORD_COMMON_HEADER(ctypes.Structure):
    _fields_ = [
        ("RecordLength", wintypes.DWORD),
        ("MajorVersion", ctypes.c_ushort),
        ("MinorVersion", ctypes.c_ushort),
    ]

class USN_RECORD_V2(ctypes.Structure):
    _fields_ = [
        ("RecordLength", wintypes.DWORD),
        ("MajorVersion", ctypes.c_ushort),
        ("MinorVersion", ctypes.c_ushort),
        ("FileReferenceNumber", ctypes.c_ulonglong),
        ("ParentFileReferenceNumber", ctypes.c_ulonglong),
        ("Usn", ctypes.c_longlong),
        ("TimeStamp", ctypes.c_longlong),
        ("Reason", wintypes.DWORD),
        ("SourceInfo", wintypes.DWORD),
        ("SecurityId", wintypes.DWORD),
        ("FileAttributes", wintypes.DWORD),
        ("FileNameLength", ctypes.c_ushort),
        ("FileNameOffset", ctypes.c_ushort),
        ("FileName", ctypes.c_wchar * 1),
    ]

class FILE_ID_128(ctypes.Structure):
    _fields_ = [
        ("Identifier", ctypes.c_ubyte * 16),
    ]

class USN_RECORD_V3(ctypes.Structure):
    _fields_ = [
        ("RecordLength", wintypes.DWORD),
        ("MajorVersion", ctypes.c_ushort),
        ("MinorVersion", ctypes.c_ushort),
        ("FileReferenceNumber", FILE_ID_128),
        ("ParentFileReferenceNumber", FILE_ID_128),
        ("Usn", ctypes.c_longlong),
        ("TimeStamp", ctypes.c_longlong),
        ("Reason", wintypes.DWORD),
        ("SourceInfo", wintypes.DWORD),
        ("SecurityId", wintypes.DWORD),
        ("FileAttributes", wintypes.DWORD),
        ("FileNameLength", ctypes.c_ushort),
        ("FileNameOffset", ctypes.c_ushort),
        ("FileName", ctypes.c_wchar * 1),
    ]

class USN_RECORD_EXTENT(ctypes.Structure):
    _fields_ = [
        ("Offset", ctypes.c_longlong),
        ("Length", ctypes.c_longlong),
    ]

class USN_RECORD_V4(ctypes.Structure):
    _fields_ = [
        ("Header", USN_RECORD_COMMON_HEADER),
        ("FileReferenceNumber", FILE_ID_128),
        ("ParentFileReferenceNumber", FILE_ID_128),
        ("Usn", ctypes.c_longlong),
        ("Reason", wintypes.DWORD),
        ("SourceInfo", wintypes.DWORD),
        ("RemainingExtents", wintypes.DWORD),
        ("NumberOfExtents", ctypes.c_ushort),
        ("ExtentSize", ctypes.c_ushort),
        ("Extents", USN_RECORD_EXTENT * 1),
    ]

class USN_RECORD_UNION(ctypes.Structure):
    _fields_ = [
        ("Header", USN_RECORD_COMMON_HEADER),
        ("V2", USN_RECORD_V2),
        ("V3", USN_RECORD_V3),
        ("V4", USN_RECORD_V4),
    ]

#[repr(C)]
pub struct USN_RECORD_COMMON_HEADER {
    pub RecordLength: u32,
    pub MajorVersion: u16,
    pub MinorVersion: u16,
}

#[repr(C)]
pub struct USN_RECORD_V2 {
    pub RecordLength: u32,
    pub MajorVersion: u16,
    pub MinorVersion: u16,
    pub FileReferenceNumber: u64,
    pub ParentFileReferenceNumber: u64,
    pub Usn: i64,
    pub TimeStamp: i64,
    pub Reason: u32,
    pub SourceInfo: u32,
    pub SecurityId: u32,
    pub FileAttributes: u32,
    pub FileNameLength: u16,
    pub FileNameOffset: u16,
    pub FileName: [u16; 1],
}

#[repr(C)]
pub struct FILE_ID_128 {
    pub Identifier: [u8; 16],
}

#[repr(C)]
pub struct USN_RECORD_V3 {
    pub RecordLength: u32,
    pub MajorVersion: u16,
    pub MinorVersion: u16,
    pub FileReferenceNumber: FILE_ID_128,
    pub ParentFileReferenceNumber: FILE_ID_128,
    pub Usn: i64,
    pub TimeStamp: i64,
    pub Reason: u32,
    pub SourceInfo: u32,
    pub SecurityId: u32,
    pub FileAttributes: u32,
    pub FileNameLength: u16,
    pub FileNameOffset: u16,
    pub FileName: [u16; 1],
}

#[repr(C)]
pub struct USN_RECORD_EXTENT {
    pub Offset: i64,
    pub Length: i64,
}

#[repr(C)]
pub struct USN_RECORD_V4 {
    pub Header: USN_RECORD_COMMON_HEADER,
    pub FileReferenceNumber: FILE_ID_128,
    pub ParentFileReferenceNumber: FILE_ID_128,
    pub Usn: i64,
    pub Reason: u32,
    pub SourceInfo: u32,
    pub RemainingExtents: u32,
    pub NumberOfExtents: u16,
    pub ExtentSize: u16,
    pub Extents: [USN_RECORD_EXTENT; 1],
}

#[repr(C)]
pub struct USN_RECORD_UNION {
    pub Header: USN_RECORD_COMMON_HEADER,
    pub V2: USN_RECORD_V2,
    pub V3: USN_RECORD_V3,
    pub V4: USN_RECORD_V4,
}

import "golang.org/x/sys/windows"

type USN_RECORD_COMMON_HEADER struct {
	RecordLength uint32
	MajorVersion uint16
	MinorVersion uint16
}

type USN_RECORD_V2 struct {
	RecordLength uint32
	MajorVersion uint16
	MinorVersion uint16
	FileReferenceNumber uint64
	ParentFileReferenceNumber uint64
	Usn int64
	TimeStamp int64
	Reason uint32
	SourceInfo uint32
	SecurityId uint32
	FileAttributes uint32
	FileNameLength uint16
	FileNameOffset uint16
	FileName [1]uint16
}

type FILE_ID_128 struct {
	Identifier [16]byte
}

type USN_RECORD_V3 struct {
	RecordLength uint32
	MajorVersion uint16
	MinorVersion uint16
	FileReferenceNumber FILE_ID_128
	ParentFileReferenceNumber FILE_ID_128
	Usn int64
	TimeStamp int64
	Reason uint32
	SourceInfo uint32
	SecurityId uint32
	FileAttributes uint32
	FileNameLength uint16
	FileNameOffset uint16
	FileName [1]uint16
}

type USN_RECORD_EXTENT struct {
	Offset int64
	Length int64
}

type USN_RECORD_V4 struct {
	Header USN_RECORD_COMMON_HEADER
	FileReferenceNumber FILE_ID_128
	ParentFileReferenceNumber FILE_ID_128
	Usn int64
	Reason uint32
	SourceInfo uint32
	RemainingExtents uint32
	NumberOfExtents uint16
	ExtentSize uint16
	Extents [1]USN_RECORD_EXTENT
}

type USN_RECORD_UNION struct {
	Header USN_RECORD_COMMON_HEADER
	V2 USN_RECORD_V2
	V3 USN_RECORD_V3
	V4 USN_RECORD_V4
}

type
  USN_RECORD_COMMON_HEADER = record
    RecordLength: DWORD;
    MajorVersion: Word;
    MinorVersion: Word;
  end;

  USN_RECORD_V2 = record
    RecordLength: DWORD;
    MajorVersion: Word;
    MinorVersion: Word;
    FileReferenceNumber: UInt64;
    ParentFileReferenceNumber: UInt64;
    Usn: Int64;
    TimeStamp: Int64;
    Reason: DWORD;
    SourceInfo: DWORD;
    SecurityId: DWORD;
    FileAttributes: DWORD;
    FileNameLength: Word;
    FileNameOffset: Word;
    FileName: array[0..0] of WideChar;
  end;

  FILE_ID_128 = record
    Identifier: array[0..15] of Byte;
  end;

  USN_RECORD_V3 = record
    RecordLength: DWORD;
    MajorVersion: Word;
    MinorVersion: Word;
    FileReferenceNumber: FILE_ID_128;
    ParentFileReferenceNumber: FILE_ID_128;
    Usn: Int64;
    TimeStamp: Int64;
    Reason: DWORD;
    SourceInfo: DWORD;
    SecurityId: DWORD;
    FileAttributes: DWORD;
    FileNameLength: Word;
    FileNameOffset: Word;
    FileName: array[0..0] of WideChar;
  end;

  USN_RECORD_EXTENT = record
    Offset: Int64;
    Length: Int64;
  end;

  USN_RECORD_V4 = record
    Header: USN_RECORD_COMMON_HEADER;
    FileReferenceNumber: FILE_ID_128;
    ParentFileReferenceNumber: FILE_ID_128;
    Usn: Int64;
    Reason: DWORD;
    SourceInfo: DWORD;
    RemainingExtents: DWORD;
    NumberOfExtents: Word;
    ExtentSize: Word;
    Extents: array[0..0] of USN_RECORD_EXTENT;
  end;

  USN_RECORD_UNION = record
    Header: USN_RECORD_COMMON_HEADER;
    V2: USN_RECORD_V2;
    V3: USN_RECORD_V3;
    V4: USN_RECORD_V4;
  end;

const USN_RECORD_COMMON_HEADER = extern struct {
    RecordLength: u32,
    MajorVersion: u16,
    MinorVersion: u16,
};

const USN_RECORD_V2 = extern struct {
    RecordLength: u32,
    MajorVersion: u16,
    MinorVersion: u16,
    FileReferenceNumber: u64,
    ParentFileReferenceNumber: u64,
    Usn: i64,
    TimeStamp: i64,
    Reason: u32,
    SourceInfo: u32,
    SecurityId: u32,
    FileAttributes: u32,
    FileNameLength: u16,
    FileNameOffset: u16,
    FileName: [1]u16,
};

const FILE_ID_128 = extern struct {
    Identifier: [16]u8,
};

const USN_RECORD_V3 = extern struct {
    RecordLength: u32,
    MajorVersion: u16,
    MinorVersion: u16,
    FileReferenceNumber: FILE_ID_128,
    ParentFileReferenceNumber: FILE_ID_128,
    Usn: i64,
    TimeStamp: i64,
    Reason: u32,
    SourceInfo: u32,
    SecurityId: u32,
    FileAttributes: u32,
    FileNameLength: u16,
    FileNameOffset: u16,
    FileName: [1]u16,
};

const USN_RECORD_EXTENT = extern struct {
    Offset: i64,
    Length: i64,
};

const USN_RECORD_V4 = extern struct {
    Header: USN_RECORD_COMMON_HEADER,
    FileReferenceNumber: FILE_ID_128,
    ParentFileReferenceNumber: FILE_ID_128,
    Usn: i64,
    Reason: u32,
    SourceInfo: u32,
    RemainingExtents: u32,
    NumberOfExtents: u16,
    ExtentSize: u16,
    Extents: [1]USN_RECORD_EXTENT,
};

const USN_RECORD_UNION = extern struct {
    Header: USN_RECORD_COMMON_HEADER,
    V2: USN_RECORD_V2,
    V3: USN_RECORD_V3,
    V4: USN_RECORD_V4,
};

type
  USN_RECORD_COMMON_HEADER {.bycopy.} = object
    RecordLength: uint32
    MajorVersion: uint16
    MinorVersion: uint16

  USN_RECORD_V2 {.bycopy.} = object
    RecordLength: uint32
    MajorVersion: uint16
    MinorVersion: uint16
    FileReferenceNumber: uint64
    ParentFileReferenceNumber: uint64
    Usn: int64
    TimeStamp: int64
    Reason: uint32
    SourceInfo: uint32
    SecurityId: uint32
    FileAttributes: uint32
    FileNameLength: uint16
    FileNameOffset: uint16
    FileName: array[1, uint16]

  FILE_ID_128 {.bycopy.} = object
    Identifier: array[16, uint8]

  USN_RECORD_V3 {.bycopy.} = object
    RecordLength: uint32
    MajorVersion: uint16
    MinorVersion: uint16
    FileReferenceNumber: FILE_ID_128
    ParentFileReferenceNumber: FILE_ID_128
    Usn: int64
    TimeStamp: int64
    Reason: uint32
    SourceInfo: uint32
    SecurityId: uint32
    FileAttributes: uint32
    FileNameLength: uint16
    FileNameOffset: uint16
    FileName: array[1, uint16]

  USN_RECORD_EXTENT {.bycopy.} = object
    Offset: int64
    Length: int64

  USN_RECORD_V4 {.bycopy.} = object
    Header: USN_RECORD_COMMON_HEADER
    FileReferenceNumber: FILE_ID_128
    ParentFileReferenceNumber: FILE_ID_128
    Usn: int64
    Reason: uint32
    SourceInfo: uint32
    RemainingExtents: uint32
    NumberOfExtents: uint16
    ExtentSize: uint16
    Extents: array[1, USN_RECORD_EXTENT]

  USN_RECORD_UNION {.bycopy.} = object
    Header: USN_RECORD_COMMON_HEADER
    V2: USN_RECORD_V2
    V3: USN_RECORD_V3
    V4: USN_RECORD_V4

struct USN_RECORD_COMMON_HEADER
{
    uint RecordLength;
    ushort MajorVersion;
    ushort MinorVersion;
}

struct USN_RECORD_V2
{
    uint RecordLength;
    ushort MajorVersion;
    ushort MinorVersion;
    ulong FileReferenceNumber;
    ulong ParentFileReferenceNumber;
    long Usn;
    long TimeStamp;
    uint Reason;
    uint SourceInfo;
    uint SecurityId;
    uint FileAttributes;
    ushort FileNameLength;
    ushort FileNameOffset;
    wchar[1] FileName;
}

struct FILE_ID_128
{
    ubyte[16] Identifier;
}

struct USN_RECORD_V3
{
    uint RecordLength;
    ushort MajorVersion;
    ushort MinorVersion;
    FILE_ID_128 FileReferenceNumber;
    FILE_ID_128 ParentFileReferenceNumber;
    long Usn;
    long TimeStamp;
    uint Reason;
    uint SourceInfo;
    uint SecurityId;
    uint FileAttributes;
    ushort FileNameLength;
    ushort FileNameOffset;
    wchar[1] FileName;
}

struct USN_RECORD_EXTENT
{
    long Offset;
    long Length;
}

struct USN_RECORD_V4
{
    USN_RECORD_COMMON_HEADER Header;
    FILE_ID_128 FileReferenceNumber;
    FILE_ID_128 ParentFileReferenceNumber;
    long Usn;
    uint Reason;
    uint SourceInfo;
    uint RemainingExtents;
    ushort NumberOfExtents;
    ushort ExtentSize;
    USN_RECORD_EXTENT[1] Extents;
}

struct USN_RECORD_UNION
{
    USN_RECORD_COMMON_HEADER Header;
    USN_RECORD_V2 V2;
    USN_RECORD_V3 V3;
    USN_RECORD_V4 V4;
}

HSP用定義

HSP3.7/3.8 は構造体機能が無いため4byte整数配列(dim)+peek/poke で操作(32/64bitでサイズ・位置が異なる場合はタブで分割)。IronHSP は NSTRUCT(#defstruct/stdim/->)で32/64bit共通。

; HSP3.7/3.8 は構造体機能が無いため、4byte整数の配列変数で操作します。(x64 レイアウト)
; USN_RECORD_UNION サイズ: 80 バイト(x64)
dim st, 20    ; 4byte整数×20(構造体サイズ 80 / 4 切り上げ)
; Header : USN_RECORD_COMMON_HEADER (+0, 8byte)  varptr(st)+0 を基点に操作(8byte:入れ子/配列)
; V2 : USN_RECORD_V2 (+0, 64byte)  varptr(st)+0 を基点に操作(64byte:入れ子/配列)
; V3 : USN_RECORD_V3 (+0, 80byte)  varptr(st)+0 を基点に操作(80byte:入れ子/配列)
; V4 : USN_RECORD_V4 (+0, 80byte)  varptr(st)+0 を基点に操作(80byte:入れ子/配列)
; ※4byte境界の整数は添字 st.N(N=オフセット/4)で読み書き可。それ以外は peek/poke 系を使用。

; IronHSP は NSTRUCT(構造体)をサポート。32bit/64bit どちらでも同じコードで動作します。
; ※GUID・入れ子構造体はデフォルト型でないため、依存する #defstruct を先に定義(下記に同梱)。
#defstruct global USN_RECORD_COMMON_HEADER
    #field int RecordLength
    #field short MajorVersion
    #field short MinorVersion
#endstruct

#defstruct global USN_RECORD_V2
    #field int RecordLength
    #field short MajorVersion
    #field short MinorVersion
    #field int64 FileReferenceNumber
    #field int64 ParentFileReferenceNumber
    #field int64 Usn
    #field int64 TimeStamp
    #field int Reason
    #field int SourceInfo
    #field int SecurityId
    #field int FileAttributes
    #field short FileNameLength
    #field short FileNameOffset
    #field wchar FileName 1
#endstruct

#defstruct global FILE_ID_128
    #field byte Identifier 16
#endstruct

#defstruct global USN_RECORD_V3
    #field int RecordLength
    #field short MajorVersion
    #field short MinorVersion
    #field FILE_ID_128 FileReferenceNumber
    #field FILE_ID_128 ParentFileReferenceNumber
    #field int64 Usn
    #field int64 TimeStamp
    #field int Reason
    #field int SourceInfo
    #field int SecurityId
    #field int FileAttributes
    #field short FileNameLength
    #field short FileNameOffset
    #field wchar FileName 1
#endstruct

#defstruct global USN_RECORD_EXTENT
    #field int64 Offset
    #field int64 Length
#endstruct

#defstruct global USN_RECORD_V4
    #field USN_RECORD_COMMON_HEADER Header
    #field FILE_ID_128 FileReferenceNumber
    #field FILE_ID_128 ParentFileReferenceNumber
    #field int64 Usn
    #field int Reason
    #field int SourceInfo
    #field int RemainingExtents
    #field short NumberOfExtents
    #field short ExtentSize
    #field USN_RECORD_EXTENT Extents 1
#endstruct

#defstruct global USN_RECORD_UNION
    #field USN_RECORD_COMMON_HEADER Header
    #field USN_RECORD_V2 V2
    #field USN_RECORD_V3 V3
    #field USN_RECORD_V4 V4
#endstruct

stdim st, USN_RECORD_UNION        ; NSTRUCT 変数を確保

USN_RECORD_UNION

フィールド

各言語での定義

HSP用 定義

HSP用定義