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GetNumaHighestNodeNumber

関数

システム内のNUMAノードの最大番号を取得する。

DLLKERNEL32.dll呼出規約winapiSetLastErrorあり対応OSWindows Vista 以降

シグネチャ

// KERNEL32.dll
#include <windows.h>

BOOL GetNumaHighestNodeNumber(
    DWORD* HighestNodeNumber
);

パラメーター

名前	型	方向
HighestNodeNumber	DWORD*	out

戻り値の型: BOOL

各言語での呼び出し定義

// KERNEL32.dll
#include <windows.h>

BOOL GetNumaHighestNodeNumber(
    DWORD* HighestNodeNumber
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool GetNumaHighestNodeNumber(
    out uint HighestNodeNumber   // DWORD* out
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetNumaHighestNodeNumber(
    <Out> ByRef HighestNodeNumber As UInteger   ' DWORD* out
) As Boolean
End Function

' HighestNodeNumber : DWORD* out
Declare PtrSafe Function GetNumaHighestNodeNumber Lib "kernel32" ( _
    ByRef HighestNodeNumber 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

GetNumaHighestNodeNumber = ctypes.windll.kernel32.GetNumaHighestNodeNumber
GetNumaHighestNodeNumber.restype = wintypes.BOOL
GetNumaHighestNodeNumber.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # HighestNodeNumber : DWORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetNumaHighestNodeNumber = Fiddle::Function.new(
  lib['GetNumaHighestNodeNumber'],
  [
    Fiddle::TYPE_VOIDP,  # HighestNodeNumber : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetNumaHighestNodeNumber(
        HighestNodeNumber: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool GetNumaHighestNodeNumber(out uint HighestNodeNumber);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetNumaHighestNodeNumber' -Namespace Win32 -PassThru
# $api::GetNumaHighestNodeNumber(HighestNodeNumber)

#uselib "KERNEL32.dll"
#func global GetNumaHighestNodeNumber "GetNumaHighestNodeNumber" sptr
; GetNumaHighestNodeNumber varptr(HighestNodeNumber)   ; 戻り値は stat
; HighestNodeNumber : 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 GetNumaHighestNodeNumber "GetNumaHighestNodeNumber" var
; res = GetNumaHighestNodeNumber(HighestNodeNumber)
; HighestNodeNumber : 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 GetNumaHighestNodeNumber "GetNumaHighestNodeNumber" sptr
; res = GetNumaHighestNodeNumber(varptr(HighestNodeNumber))
; HighestNodeNumber : 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:

; BOOL GetNumaHighestNodeNumber(DWORD* HighestNodeNumber)
#uselib "KERNEL32.dll"
#cfunc global GetNumaHighestNodeNumber "GetNumaHighestNodeNumber" var
; res = GetNumaHighestNodeNumber(HighestNodeNumber)
; HighestNodeNumber : 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。; BOOL GetNumaHighestNodeNumber(DWORD* HighestNodeNumber)
#uselib "KERNEL32.dll"
#cfunc global GetNumaHighestNodeNumber "GetNumaHighestNodeNumber" intptr
; res = GetNumaHighestNodeNumber(varptr(HighestNodeNumber))
; HighestNodeNumber : 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")
	procGetNumaHighestNodeNumber = kernel32.NewProc("GetNumaHighestNodeNumber")
)

// HighestNodeNumber (DWORD* out)
r1, _, err := procGetNumaHighestNodeNumber.Call(
	uintptr(HighestNodeNumber),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetNumaHighestNodeNumber(
  HighestNodeNumber: Pointer   // DWORD* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetNumaHighestNodeNumber';

result := DllCall("KERNEL32\GetNumaHighestNodeNumber"
    , "Ptr", HighestNodeNumber   ; DWORD* out
    , "Int")   ; return: BOOL

●GetNumaHighestNodeNumber(HighestNodeNumber) = DLL("KERNEL32.dll", "bool GetNumaHighestNodeNumber(void*)")
# 呼び出し: GetNumaHighestNodeNumber(HighestNodeNumber)
# HighestNodeNumber : 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)。