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SCRUB_PARITY_EXTENT_DATA

構造体
サイズx64: 24 バイト / x86: 24 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x64x86説明
SizeWORD2+0+0本構造体のサイズをバイト単位で示す。
FlagsWORD2+2+2パリティエクステントデータのフラグ。
NumberOfParityExtentsWORD2+4+4実際のパリティエクステント数。
MaximumNumberOfParityExtentsWORD2+6+6格納可能なパリティエクステントの最大数。
ParityExtentsSCRUB_PARITY_EXTENT16+8+8パリティエクステント情報の配列(可変長)。

各言語での定義

#include <windows.h>

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

// SCRUB_PARITY_EXTENT_DATA  (x64 24 / x86 24 バイト)
typedef struct SCRUB_PARITY_EXTENT_DATA {
    WORD Size;
    WORD Flags;
    WORD NumberOfParityExtents;
    WORD MaximumNumberOfParityExtents;
    SCRUB_PARITY_EXTENT ParityExtents[1];
} SCRUB_PARITY_EXTENT_DATA;
using System;
using System.Runtime.InteropServices;

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

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct SCRUB_PARITY_EXTENT_DATA
{
    public ushort Size;
    public ushort Flags;
    public ushort NumberOfParityExtents;
    public ushort MaximumNumberOfParityExtents;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public SCRUB_PARITY_EXTENT[] ParityExtents;
}
Imports System.Runtime.InteropServices

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

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure SCRUB_PARITY_EXTENT_DATA
    Public Size As UShort
    Public Flags As UShort
    Public NumberOfParityExtents As UShort
    Public MaximumNumberOfParityExtents As UShort
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=1)> Public ParityExtents() As SCRUB_PARITY_EXTENT
End Structure
import ctypes
from ctypes import wintypes

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

class SCRUB_PARITY_EXTENT_DATA(ctypes.Structure):
    _fields_ = [
        ("Size", ctypes.c_ushort),
        ("Flags", ctypes.c_ushort),
        ("NumberOfParityExtents", ctypes.c_ushort),
        ("MaximumNumberOfParityExtents", ctypes.c_ushort),
        ("ParityExtents", SCRUB_PARITY_EXTENT * 1),
    ]
#[repr(C)]
pub struct SCRUB_PARITY_EXTENT {
    pub Offset: i64,
    pub Length: u64,
}

#[repr(C)]
pub struct SCRUB_PARITY_EXTENT_DATA {
    pub Size: u16,
    pub Flags: u16,
    pub NumberOfParityExtents: u16,
    pub MaximumNumberOfParityExtents: u16,
    pub ParityExtents: [SCRUB_PARITY_EXTENT; 1],
}
import "golang.org/x/sys/windows"

type SCRUB_PARITY_EXTENT struct {
	Offset int64
	Length uint64
}

type SCRUB_PARITY_EXTENT_DATA struct {
	Size uint16
	Flags uint16
	NumberOfParityExtents uint16
	MaximumNumberOfParityExtents uint16
	ParityExtents [1]SCRUB_PARITY_EXTENT
}
type
  SCRUB_PARITY_EXTENT = record
    Offset: Int64;
    Length: UInt64;
  end;

  SCRUB_PARITY_EXTENT_DATA = record
    Size: Word;
    Flags: Word;
    NumberOfParityExtents: Word;
    MaximumNumberOfParityExtents: Word;
    ParityExtents: array[0..0] of SCRUB_PARITY_EXTENT;
  end;
const SCRUB_PARITY_EXTENT = extern struct {
    Offset: i64,
    Length: u64,
};

const SCRUB_PARITY_EXTENT_DATA = extern struct {
    Size: u16,
    Flags: u16,
    NumberOfParityExtents: u16,
    MaximumNumberOfParityExtents: u16,
    ParityExtents: [1]SCRUB_PARITY_EXTENT,
};
type
  SCRUB_PARITY_EXTENT {.bycopy.} = object
    Offset: int64
    Length: uint64

  SCRUB_PARITY_EXTENT_DATA {.bycopy.} = object
    Size: uint16
    Flags: uint16
    NumberOfParityExtents: uint16
    MaximumNumberOfParityExtents: uint16
    ParityExtents: array[1, SCRUB_PARITY_EXTENT]
struct SCRUB_PARITY_EXTENT
{
    long Offset;
    ulong Length;
}

struct SCRUB_PARITY_EXTENT_DATA
{
    ushort Size;
    ushort Flags;
    ushort NumberOfParityExtents;
    ushort MaximumNumberOfParityExtents;
    SCRUB_PARITY_EXTENT[1] ParityExtents;
}

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)
; SCRUB_PARITY_EXTENT_DATA サイズ: 24 バイト(x64)
dim st, 6    ; 4byte整数×6(構造体サイズ 24 / 4 切り上げ)
; Size : WORD (+0, 2byte)  wpoke st,0,値  /  値 = wpeek(st,0)
; Flags : WORD (+2, 2byte)  wpoke st,2,値  /  値 = wpeek(st,2)
; NumberOfParityExtents : WORD (+4, 2byte)  wpoke st,4,値  /  値 = wpeek(st,4)
; MaximumNumberOfParityExtents : WORD (+6, 2byte)  wpoke st,6,値  /  値 = wpeek(st,6)
; ParityExtents : SCRUB_PARITY_EXTENT (+8, 16byte)  varptr(st)+8 を基点に操作(16byte: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 SCRUB_PARITY_EXTENT
    #field int64 Offset
    #field int64 Length
#endstruct

#defstruct global SCRUB_PARITY_EXTENT_DATA
    #field short Size
    #field short Flags
    #field short NumberOfParityExtents
    #field short MaximumNumberOfParityExtents
    #field SCRUB_PARITY_EXTENT ParityExtents 1
#endstruct

stdim st, SCRUB_PARITY_EXTENT_DATA        ; NSTRUCT 変数を確保
st->Size = 100
mes "Size=" + st->Size