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QueryIoRateControlInformationJobObject
関数ジョブのI/Oレート制御情報を照会する。
シグネチャ
// KERNEL32.dll
#include <windows.h>
DWORD QueryIoRateControlInformationJobObject(
HANDLE hJob, // optional
LPCWSTR VolumeName, // optional
JOBOBJECT_IO_RATE_CONTROL_INFORMATION** InfoBlocks,
DWORD* InfoBlockCount
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| hJob | HANDLE | inoptional | I/Oレート制御情報を取得する対象ジョブのハンドル。NULL可(現在のジョブを参照)。 |
| VolumeName | LPCWSTR | inoptional | 情報を取得する対象ボリュームの名前(Unicode)。NULLで全ボリューム分を取得する。 |
| InfoBlocks | JOBOBJECT_IO_RATE_CONTROL_INFORMATION** | out | 取得した制御情報ブロック配列を受け取るポインタのアドレス。FreeMemoryJobObjectで解放する。 |
| InfoBlockCount | DWORD* | out | 返された情報ブロックの個数を受け取る変数へのポインタ。 |
戻り値の型: DWORD
各言語での呼び出し定義
// KERNEL32.dll
#include <windows.h>
DWORD QueryIoRateControlInformationJobObject(
HANDLE hJob, // optional
LPCWSTR VolumeName, // optional
JOBOBJECT_IO_RATE_CONTROL_INFORMATION** InfoBlocks,
DWORD* InfoBlockCount
);[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern uint QueryIoRateControlInformationJobObject(
IntPtr hJob, // HANDLE optional
[MarshalAs(UnmanagedType.LPWStr)] string VolumeName, // LPCWSTR optional
IntPtr InfoBlocks, // JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
out uint InfoBlockCount // DWORD* out
);<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function QueryIoRateControlInformationJobObject(
hJob As IntPtr, ' HANDLE optional
<MarshalAs(UnmanagedType.LPWStr)> VolumeName As String, ' LPCWSTR optional
InfoBlocks As IntPtr, ' JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
<Out> ByRef InfoBlockCount As UInteger ' DWORD* out
) As UInteger
End Function' hJob : HANDLE optional
' VolumeName : LPCWSTR optional
' InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
' InfoBlockCount : DWORD* out
Declare PtrSafe Function QueryIoRateControlInformationJobObject Lib "kernel32" ( _
ByVal hJob As LongPtr, _
ByVal VolumeName As LongPtr, _
ByVal InfoBlocks As LongPtr, _
ByRef InfoBlockCount 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
QueryIoRateControlInformationJobObject = ctypes.windll.kernel32.QueryIoRateControlInformationJobObject
QueryIoRateControlInformationJobObject.restype = wintypes.DWORD
QueryIoRateControlInformationJobObject.argtypes = [
wintypes.HANDLE, # hJob : HANDLE optional
wintypes.LPCWSTR, # VolumeName : LPCWSTR optional
ctypes.c_void_p, # InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
ctypes.POINTER(wintypes.DWORD), # InfoBlockCount : DWORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('KERNEL32.dll')
QueryIoRateControlInformationJobObject = Fiddle::Function.new(
lib['QueryIoRateControlInformationJobObject'],
[
Fiddle::TYPE_VOIDP, # hJob : HANDLE optional
Fiddle::TYPE_VOIDP, # VolumeName : LPCWSTR optional
Fiddle::TYPE_VOIDP, # InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
Fiddle::TYPE_VOIDP, # InfoBlockCount : DWORD* out
],
-Fiddle::TYPE_INT)#[link(name = "kernel32")]
extern "system" {
fn QueryIoRateControlInformationJobObject(
hJob: *mut core::ffi::c_void, // HANDLE optional
VolumeName: *const u16, // LPCWSTR optional
InfoBlocks: *mut *mut JOBOBJECT_IO_RATE_CONTROL_INFORMATION, // JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
InfoBlockCount: *mut u32 // DWORD* out
) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern uint QueryIoRateControlInformationJobObject(IntPtr hJob, [MarshalAs(UnmanagedType.LPWStr)] string VolumeName, IntPtr InfoBlocks, out uint InfoBlockCount);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_QueryIoRateControlInformationJobObject' -Namespace Win32 -PassThru
# $api::QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount)#uselib "KERNEL32.dll"
#func global QueryIoRateControlInformationJobObject "QueryIoRateControlInformationJobObject" sptr, sptr, sptr, sptr
; QueryIoRateControlInformationJobObject hJob, VolumeName, varptr(InfoBlocks), varptr(InfoBlockCount) ; 戻り値は stat
; hJob : HANDLE optional -> "sptr"
; VolumeName : LPCWSTR optional -> "sptr"
; InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> "sptr"
; InfoBlockCount : DWORD* 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 "KERNEL32.dll" #cfunc global QueryIoRateControlInformationJobObject "QueryIoRateControlInformationJobObject" sptr, wstr, var, var ; res = QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount) ; hJob : HANDLE optional -> "sptr" ; VolumeName : LPCWSTR optional -> "wstr" ; InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> "var" ; InfoBlockCount : DWORD* 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 "KERNEL32.dll" #cfunc global QueryIoRateControlInformationJobObject "QueryIoRateControlInformationJobObject" sptr, wstr, sptr, sptr ; res = QueryIoRateControlInformationJobObject(hJob, VolumeName, varptr(InfoBlocks), varptr(InfoBlockCount)) ; hJob : HANDLE optional -> "sptr" ; VolumeName : LPCWSTR optional -> "wstr" ; InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> "sptr" ; InfoBlockCount : DWORD* 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:
; DWORD QueryIoRateControlInformationJobObject(HANDLE hJob, LPCWSTR VolumeName, JOBOBJECT_IO_RATE_CONTROL_INFORMATION** InfoBlocks, DWORD* InfoBlockCount) #uselib "KERNEL32.dll" #cfunc global QueryIoRateControlInformationJobObject "QueryIoRateControlInformationJobObject" intptr, wstr, var, var ; res = QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount) ; hJob : HANDLE optional -> "intptr" ; VolumeName : LPCWSTR optional -> "wstr" ; InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> "var" ; InfoBlockCount : DWORD* 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。; DWORD QueryIoRateControlInformationJobObject(HANDLE hJob, LPCWSTR VolumeName, JOBOBJECT_IO_RATE_CONTROL_INFORMATION** InfoBlocks, DWORD* InfoBlockCount) #uselib "KERNEL32.dll" #cfunc global QueryIoRateControlInformationJobObject "QueryIoRateControlInformationJobObject" intptr, wstr, intptr, intptr ; res = QueryIoRateControlInformationJobObject(hJob, VolumeName, varptr(InfoBlocks), varptr(InfoBlockCount)) ; hJob : HANDLE optional -> "intptr" ; VolumeName : LPCWSTR optional -> "wstr" ; InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> "intptr" ; InfoBlockCount : DWORD* 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 (
kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
procQueryIoRateControlInformationJobObject = kernel32.NewProc("QueryIoRateControlInformationJobObject")
)
// hJob (HANDLE optional), VolumeName (LPCWSTR optional), InfoBlocks (JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out), InfoBlockCount (DWORD* out)
r1, _, err := procQueryIoRateControlInformationJobObject.Call(
uintptr(hJob),
uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(VolumeName))),
uintptr(InfoBlocks),
uintptr(InfoBlockCount),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // DWORDfunction QueryIoRateControlInformationJobObject(
hJob: THandle; // HANDLE optional
VolumeName: PWideChar; // LPCWSTR optional
InfoBlocks: Pointer; // JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
InfoBlockCount: Pointer // DWORD* out
): DWORD; stdcall;
external 'KERNEL32.dll' name 'QueryIoRateControlInformationJobObject';result := DllCall("KERNEL32\QueryIoRateControlInformationJobObject"
, "Ptr", hJob ; HANDLE optional
, "WStr", VolumeName ; LPCWSTR optional
, "Ptr", InfoBlocks ; JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
, "Ptr", InfoBlockCount ; DWORD* out
, "UInt") ; return: DWORD●QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount) = DLL("KERNEL32.dll", "dword QueryIoRateControlInformationJobObject(void*, char*, void*, void*)")
# 呼び出し: QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount)
# hJob : HANDLE optional -> "void*"
# VolumeName : LPCWSTR optional -> "char*"
# InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> "void*"
# InfoBlockCount : DWORD* 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 "kernel32" fn QueryIoRateControlInformationJobObject(
hJob: ?*anyopaque, // HANDLE optional
VolumeName: [*c]const u16, // LPCWSTR optional
InfoBlocks: [*c][*c]JOBOBJECT_IO_RATE_CONTROL_INFORMATION, // JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
InfoBlockCount: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) u32;proc QueryIoRateControlInformationJobObject(
hJob: pointer, # HANDLE optional
VolumeName: WideCString, # LPCWSTR optional
InfoBlocks: ptr JOBOBJECT_IO_RATE_CONTROL_INFORMATION, # JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
InfoBlockCount: ptr uint32 # DWORD* out
): uint32 {.importc: "QueryIoRateControlInformationJobObject", stdcall, dynlib: "KERNEL32.dll".}pragma(lib, "kernel32");
extern(Windows)
uint QueryIoRateControlInformationJobObject(
void* hJob, // HANDLE optional
const(wchar)* VolumeName, // LPCWSTR optional
JOBOBJECT_IO_RATE_CONTROL_INFORMATION** InfoBlocks, // JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
uint* InfoBlockCount // DWORD* out
);ccall((:QueryIoRateControlInformationJobObject, "KERNEL32.dll"), stdcall, UInt32,
(Ptr{Cvoid}, Cwstring, Ptr{JOBOBJECT_IO_RATE_CONTROL_INFORMATION}, Ptr{UInt32}),
hJob, VolumeName, InfoBlocks, InfoBlockCount)
# hJob : HANDLE optional -> Ptr{Cvoid}
# VolumeName : LPCWSTR optional -> Cwstring
# InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> Ptr{JOBOBJECT_IO_RATE_CONTROL_INFORMATION}
# InfoBlockCount : DWORD* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
uint32_t QueryIoRateControlInformationJobObject(
void* hJob,
const uint16_t* VolumeName,
void* InfoBlocks,
uint32_t* InfoBlockCount);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount)
-- hJob : HANDLE optional
-- VolumeName : LPCWSTR optional
-- InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
-- InfoBlockCount : DWORD* 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('KERNEL32.dll');
const QueryIoRateControlInformationJobObject = lib.func('__stdcall', 'QueryIoRateControlInformationJobObject', 'uint32_t', ['void *', 'str16', 'void *', 'uint32_t *']);
// QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount)
// hJob : HANDLE optional -> 'void *'
// VolumeName : LPCWSTR optional -> 'str16'
// InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> 'void *'
// InfoBlockCount : DWORD* 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("KERNEL32.dll", {
QueryIoRateControlInformationJobObject: { parameters: ["pointer", "buffer", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount)
// hJob : HANDLE optional -> "pointer"
// VolumeName : LPCWSTR optional -> "buffer"
// InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> "pointer"
// InfoBlockCount : DWORD* 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 QueryIoRateControlInformationJobObject(
void* hJob,
const uint16_t* VolumeName,
void* InfoBlocks,
uint32_t* InfoBlockCount);
C, "KERNEL32.dll");
// $ffi->QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount);
// hJob : HANDLE optional
// VolumeName : LPCWSTR optional
// InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
// InfoBlockCount : DWORD* 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 Kernel32 extends StdCallLibrary {
Kernel32 INSTANCE = Native.load("kernel32", Kernel32.class);
int QueryIoRateControlInformationJobObject(
Pointer hJob, // HANDLE optional
WString VolumeName, // LPCWSTR optional
Pointer InfoBlocks, // JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
IntByReference InfoBlockCount // DWORD* out
);
}@[Link("kernel32")]
lib LibKERNEL32
fun QueryIoRateControlInformationJobObject = QueryIoRateControlInformationJobObject(
hJob : Void*, # HANDLE optional
VolumeName : UInt16*, # LPCWSTR optional
InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION**, # JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
InfoBlockCount : UInt32* # DWORD* 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 QueryIoRateControlInformationJobObjectNative = Uint32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Void>, Pointer<Uint32>);
typedef QueryIoRateControlInformationJobObjectDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Void>, Pointer<Uint32>);
final QueryIoRateControlInformationJobObject = DynamicLibrary.open('KERNEL32.dll')
.lookupFunction<QueryIoRateControlInformationJobObjectNative, QueryIoRateControlInformationJobObjectDart>('QueryIoRateControlInformationJobObject');
// hJob : HANDLE optional -> Pointer<Void>
// VolumeName : LPCWSTR optional -> Pointer<Utf16>
// InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> Pointer<Void>
// InfoBlockCount : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function QueryIoRateControlInformationJobObject(
hJob: THandle; // HANDLE optional
VolumeName: PWideChar; // LPCWSTR optional
InfoBlocks: Pointer; // JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
InfoBlockCount: Pointer // DWORD* out
): DWORD; stdcall;
external 'KERNEL32.dll' name 'QueryIoRateControlInformationJobObject';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "QueryIoRateControlInformationJobObject"
c_QueryIoRateControlInformationJobObject :: Ptr () -> CWString -> Ptr () -> Ptr Word32 -> IO Word32
-- hJob : HANDLE optional -> Ptr ()
-- VolumeName : LPCWSTR optional -> CWString
-- InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> Ptr ()
-- InfoBlockCount : DWORD* 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 queryioratecontrolinformationjobobject =
foreign "QueryIoRateControlInformationJobObject"
((ptr void) @-> (ptr uint16_t) @-> (ptr void) @-> (ptr uint32_t) @-> returning uint32_t)
(* hJob : HANDLE optional -> (ptr void) *)
(* VolumeName : LPCWSTR optional -> (ptr uint16_t) *)
(* InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> (ptr void) *)
(* InfoBlockCount : DWORD* 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 kernel32 (t "KERNEL32.dll"))
(cffi:use-foreign-library kernel32)
(cffi:defcfun ("QueryIoRateControlInformationJobObject" query-io-rate-control-information-job-object :convention :stdcall) :uint32
(h-job :pointer) ; HANDLE optional
(volume-name (:string :encoding :utf-16le)) ; LPCWSTR optional
(info-blocks :pointer) ; JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
(info-block-count :pointer)) ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $QueryIoRateControlInformationJobObject = Win32::API::More->new('KERNEL32',
'DWORD QueryIoRateControlInformationJobObject(HANDLE hJob, LPCWSTR VolumeName, LPVOID InfoBlocks, LPVOID InfoBlockCount)');
# my $ret = $QueryIoRateControlInformationJobObject->Call($hJob, $VolumeName, $InfoBlocks, $InfoBlockCount);
# hJob : HANDLE optional -> HANDLE
# VolumeName : LPCWSTR optional -> LPCWSTR
# InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> LPVOID
# InfoBlockCount : DWORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。