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GetNumaAvailableMemoryNode

関数

指定NUMAノードの利用可能メモリ量を取得する。

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 GetNumaAvailableMemoryNode(
    BYTE Node,
    ULONGLONG* AvailableBytes
);

パラメーター

名前	型	方向
Node	BYTE	in
AvailableBytes	ULONGLONG*	out

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL GetNumaAvailableMemoryNode(
    BYTE Node,
    ULONGLONG* AvailableBytes
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool GetNumaAvailableMemoryNode(
    byte Node,   // BYTE
    out ulong AvailableBytes   // ULONGLONG* out
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetNumaAvailableMemoryNode(
    Node As Byte,   ' BYTE
    <Out> ByRef AvailableBytes As ULong   ' ULONGLONG* out
) As Boolean
End Function

' Node : BYTE
' AvailableBytes : ULONGLONG* out
Declare PtrSafe Function GetNumaAvailableMemoryNode Lib "kernel32" ( _
    ByVal Node As Byte, _
    ByRef AvailableBytes As LongLong) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetNumaAvailableMemoryNode = ctypes.windll.kernel32.GetNumaAvailableMemoryNode
GetNumaAvailableMemoryNode.restype = wintypes.BOOL
GetNumaAvailableMemoryNode.argtypes = [
    ctypes.c_ubyte,  # Node : BYTE
    ctypes.POINTER(ctypes.c_ulonglong),  # AvailableBytes : ULONGLONG* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetNumaAvailableMemoryNode = Fiddle::Function.new(
  lib['GetNumaAvailableMemoryNode'],
  [
    -Fiddle::TYPE_CHAR,  # Node : BYTE
    Fiddle::TYPE_VOIDP,  # AvailableBytes : ULONGLONG* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetNumaAvailableMemoryNode(
        Node: u8,  // BYTE
        AvailableBytes: *mut u64  // ULONGLONG* 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 GetNumaAvailableMemoryNode(byte Node, out ulong AvailableBytes);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetNumaAvailableMemoryNode' -Namespace Win32 -PassThru
# $api::GetNumaAvailableMemoryNode(Node, AvailableBytes)

#uselib "KERNEL32.dll"
#func global GetNumaAvailableMemoryNode "GetNumaAvailableMemoryNode" sptr, sptr
; GetNumaAvailableMemoryNode Node, varptr(AvailableBytes)   ; 戻り値は stat
; Node : BYTE -> "sptr"
; AvailableBytes : ULONGLONG* 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 GetNumaAvailableMemoryNode "GetNumaAvailableMemoryNode" int, var
; res = GetNumaAvailableMemoryNode(Node, AvailableBytes)
; Node : BYTE -> "int"
; AvailableBytes : ULONGLONG* 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 GetNumaAvailableMemoryNode "GetNumaAvailableMemoryNode" int, sptr
; res = GetNumaAvailableMemoryNode(Node, varptr(AvailableBytes))
; Node : BYTE -> "int"
; AvailableBytes : ULONGLONG* 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 GetNumaAvailableMemoryNode(BYTE Node, ULONGLONG* AvailableBytes)
#uselib "KERNEL32.dll"
#cfunc global GetNumaAvailableMemoryNode "GetNumaAvailableMemoryNode" int, var
; res = GetNumaAvailableMemoryNode(Node, AvailableBytes)
; Node : BYTE -> "int"
; AvailableBytes : ULONGLONG* 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 GetNumaAvailableMemoryNode(BYTE Node, ULONGLONG* AvailableBytes)
#uselib "KERNEL32.dll"
#cfunc global GetNumaAvailableMemoryNode "GetNumaAvailableMemoryNode" int, intptr
; res = GetNumaAvailableMemoryNode(Node, varptr(AvailableBytes))
; Node : BYTE -> "int"
; AvailableBytes : ULONGLONG* 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")
	procGetNumaAvailableMemoryNode = kernel32.NewProc("GetNumaAvailableMemoryNode")
)

// Node (BYTE), AvailableBytes (ULONGLONG* out)
r1, _, err := procGetNumaAvailableMemoryNode.Call(
	uintptr(Node),
	uintptr(AvailableBytes),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetNumaAvailableMemoryNode(
  Node: Byte;   // BYTE
  AvailableBytes: Pointer   // ULONGLONG* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetNumaAvailableMemoryNode';

result := DllCall("KERNEL32\GetNumaAvailableMemoryNode"
    , "UChar", Node   ; BYTE
    , "Ptr", AvailableBytes   ; ULONGLONG* out
    , "Int")   ; return: BOOL

●GetNumaAvailableMemoryNode(Node, AvailableBytes) = DLL("KERNEL32.dll", "bool GetNumaAvailableMemoryNode(byte, void*)")
# 呼び出し: GetNumaAvailableMemoryNode(Node, AvailableBytes)
# Node : BYTE -> "byte"
# AvailableBytes : ULONGLONG* 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)。