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GetProcessAffinityMask

関数

プロセスとシステムのプロセッサアフィニティマスクを取得する。

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

シグネチャ

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

BOOL GetProcessAffinityMask(
    HANDLE hProcess,
    UINT_PTR* lpProcessAffinityMask,
    UINT_PTR* lpSystemAffinityMask
);

パラメーター

名前	型	方向
hProcess	HANDLE	in
lpProcessAffinityMask	UINT_PTR*	out
lpSystemAffinityMask	UINT_PTR*	out

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL GetProcessAffinityMask(
    HANDLE hProcess,
    UINT_PTR* lpProcessAffinityMask,
    UINT_PTR* lpSystemAffinityMask
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool GetProcessAffinityMask(
    IntPtr hProcess,   // HANDLE
    out UIntPtr lpProcessAffinityMask,   // UINT_PTR* out
    out UIntPtr lpSystemAffinityMask   // UINT_PTR* out
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetProcessAffinityMask(
    hProcess As IntPtr,   ' HANDLE
    <Out> ByRef lpProcessAffinityMask As UIntPtr,   ' UINT_PTR* out
    <Out> ByRef lpSystemAffinityMask As UIntPtr   ' UINT_PTR* out
) As Boolean
End Function

' hProcess : HANDLE
' lpProcessAffinityMask : UINT_PTR* out
' lpSystemAffinityMask : UINT_PTR* out
Declare PtrSafe Function GetProcessAffinityMask Lib "kernel32" ( _
    ByVal hProcess As LongPtr, _
    ByRef lpProcessAffinityMask As LongPtr, _
    ByRef lpSystemAffinityMask As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetProcessAffinityMask = ctypes.windll.kernel32.GetProcessAffinityMask
GetProcessAffinityMask.restype = wintypes.BOOL
GetProcessAffinityMask.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    ctypes.POINTER(ctypes.c_size_t),  # lpProcessAffinityMask : UINT_PTR* out
    ctypes.POINTER(ctypes.c_size_t),  # lpSystemAffinityMask : UINT_PTR* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetProcessAffinityMask = Fiddle::Function.new(
  lib['GetProcessAffinityMask'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    Fiddle::TYPE_VOIDP,  # lpProcessAffinityMask : UINT_PTR* out
    Fiddle::TYPE_VOIDP,  # lpSystemAffinityMask : UINT_PTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetProcessAffinityMask(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        lpProcessAffinityMask: *mut usize,  // UINT_PTR* out
        lpSystemAffinityMask: *mut usize  // UINT_PTR* 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 GetProcessAffinityMask(IntPtr hProcess, out UIntPtr lpProcessAffinityMask, out UIntPtr lpSystemAffinityMask);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetProcessAffinityMask' -Namespace Win32 -PassThru
# $api::GetProcessAffinityMask(hProcess, lpProcessAffinityMask, lpSystemAffinityMask)

#uselib "KERNEL32.dll"
#func global GetProcessAffinityMask "GetProcessAffinityMask" sptr, sptr, sptr
; GetProcessAffinityMask hProcess, varptr(lpProcessAffinityMask), varptr(lpSystemAffinityMask)   ; 戻り値は stat
; hProcess : HANDLE -> "sptr"
; lpProcessAffinityMask : UINT_PTR* out -> "sptr"
; lpSystemAffinityMask : UINT_PTR* 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 GetProcessAffinityMask "GetProcessAffinityMask" sptr, var, var
; res = GetProcessAffinityMask(hProcess, lpProcessAffinityMask, lpSystemAffinityMask)
; hProcess : HANDLE -> "sptr"
; lpProcessAffinityMask : UINT_PTR* out -> "var"
; lpSystemAffinityMask : UINT_PTR* 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 GetProcessAffinityMask "GetProcessAffinityMask" sptr, sptr, sptr
; res = GetProcessAffinityMask(hProcess, varptr(lpProcessAffinityMask), varptr(lpSystemAffinityMask))
; hProcess : HANDLE -> "sptr"
; lpProcessAffinityMask : UINT_PTR* out -> "sptr"
; lpSystemAffinityMask : UINT_PTR* 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 GetProcessAffinityMask(HANDLE hProcess, UINT_PTR* lpProcessAffinityMask, UINT_PTR* lpSystemAffinityMask)
#uselib "KERNEL32.dll"
#cfunc global GetProcessAffinityMask "GetProcessAffinityMask" intptr, var, var
; res = GetProcessAffinityMask(hProcess, lpProcessAffinityMask, lpSystemAffinityMask)
; hProcess : HANDLE -> "intptr"
; lpProcessAffinityMask : UINT_PTR* out -> "var"
; lpSystemAffinityMask : UINT_PTR* 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 GetProcessAffinityMask(HANDLE hProcess, UINT_PTR* lpProcessAffinityMask, UINT_PTR* lpSystemAffinityMask)
#uselib "KERNEL32.dll"
#cfunc global GetProcessAffinityMask "GetProcessAffinityMask" intptr, intptr, intptr
; res = GetProcessAffinityMask(hProcess, varptr(lpProcessAffinityMask), varptr(lpSystemAffinityMask))
; hProcess : HANDLE -> "intptr"
; lpProcessAffinityMask : UINT_PTR* out -> "intptr"
; lpSystemAffinityMask : UINT_PTR* 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")
	procGetProcessAffinityMask = kernel32.NewProc("GetProcessAffinityMask")
)

// hProcess (HANDLE), lpProcessAffinityMask (UINT_PTR* out), lpSystemAffinityMask (UINT_PTR* out)
r1, _, err := procGetProcessAffinityMask.Call(
	uintptr(hProcess),
	uintptr(lpProcessAffinityMask),
	uintptr(lpSystemAffinityMask),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetProcessAffinityMask(
  hProcess: THandle;   // HANDLE
  lpProcessAffinityMask: Pointer;   // UINT_PTR* out
  lpSystemAffinityMask: Pointer   // UINT_PTR* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetProcessAffinityMask';

result := DllCall("KERNEL32\GetProcessAffinityMask"
    , "Ptr", hProcess   ; HANDLE
    , "Ptr", lpProcessAffinityMask   ; UINT_PTR* out
    , "Ptr", lpSystemAffinityMask   ; UINT_PTR* out
    , "Int")   ; return: BOOL

●GetProcessAffinityMask(hProcess, lpProcessAffinityMask, lpSystemAffinityMask) = DLL("KERNEL32.dll", "bool GetProcessAffinityMask(void*, void*, void*)")
# 呼び出し: GetProcessAffinityMask(hProcess, lpProcessAffinityMask, lpSystemAffinityMask)
# hProcess : HANDLE -> "void*"
# lpProcessAffinityMask : UINT_PTR* out -> "void*"
# lpSystemAffinityMask : UINT_PTR* 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)。