Win32 API 日本語リファレンス
ホームSystem.Threading › WaitOnAddress

WaitOnAddress

関数
指定アドレスの値が変化するまでスレッドを待機させる。
DLLapi-ms-win-core-synch-l1-2-0.dll呼出規約winapiSetLastErrorあり対応OSwindows8.0

シグネチャ

// api-ms-win-core-synch-l1-2-0.dll
#include <windows.h>

BOOL WaitOnAddress(
    void* Address,
    void* CompareAddress,
    UINT_PTR AddressSize,
    DWORD dwMilliseconds   // optional
);

パラメーター

名前方向
Addressvoid*in
CompareAddressvoid*in
AddressSizeUINT_PTRin
dwMillisecondsDWORDinoptional

戻り値の型: BOOL

各言語での呼び出し定義

// api-ms-win-core-synch-l1-2-0.dll
#include <windows.h>

BOOL WaitOnAddress(
    void* Address,
    void* CompareAddress,
    UINT_PTR AddressSize,
    DWORD dwMilliseconds   // optional
);
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("api-ms-win-core-synch-l1-2-0.dll", SetLastError = true, ExactSpelling = true)]
static extern bool WaitOnAddress(
    IntPtr Address,   // void*
    IntPtr CompareAddress,   // void*
    UIntPtr AddressSize,   // UINT_PTR
    uint dwMilliseconds   // DWORD optional
);
<DllImport("api-ms-win-core-synch-l1-2-0.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WaitOnAddress(
    Address As IntPtr,   ' void*
    CompareAddress As IntPtr,   ' void*
    AddressSize As UIntPtr,   ' UINT_PTR
    dwMilliseconds As UInteger   ' DWORD optional
) As Boolean
End Function
' Address : void*
' CompareAddress : void*
' AddressSize : UINT_PTR
' dwMilliseconds : DWORD optional
Declare PtrSafe Function WaitOnAddress Lib "api-ms-win-core-synch-l1-2-0" ( _
    ByVal Address As LongPtr, _
    ByVal CompareAddress As LongPtr, _
    ByVal AddressSize As LongPtr, _
    ByVal dwMilliseconds 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

WaitOnAddress = ctypes.windll.LoadLibrary("api-ms-win-core-synch-l1-2-0.dll").WaitOnAddress
WaitOnAddress.restype = wintypes.BOOL
WaitOnAddress.argtypes = [
    ctypes.POINTER(None),  # Address : void*
    ctypes.POINTER(None),  # CompareAddress : void*
    ctypes.c_size_t,  # AddressSize : UINT_PTR
    wintypes.DWORD,  # dwMilliseconds : DWORD optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('api-ms-win-core-synch-l1-2-0.dll')
WaitOnAddress = Fiddle::Function.new(
  lib['WaitOnAddress'],
  [
    Fiddle::TYPE_VOIDP,  # Address : void*
    Fiddle::TYPE_VOIDP,  # CompareAddress : void*
    Fiddle::TYPE_UINTPTR_T,  # AddressSize : UINT_PTR
    -Fiddle::TYPE_INT,  # dwMilliseconds : DWORD optional
  ],
  Fiddle::TYPE_INT)
#[link(name = "api-ms-win-core-synch-l1-2-0")]
extern "system" {
    fn WaitOnAddress(
        Address: *mut (),  // void*
        CompareAddress: *mut (),  // void*
        AddressSize: usize,  // UINT_PTR
        dwMilliseconds: u32  // DWORD optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("api-ms-win-core-synch-l1-2-0.dll", SetLastError = true)]
public static extern bool WaitOnAddress(IntPtr Address, IntPtr CompareAddress, UIntPtr AddressSize, uint dwMilliseconds);
"@
$api = Add-Type -MemberDefinition $sig -Name 'api-ms-win-core-synch-l1-2-0_WaitOnAddress' -Namespace Win32 -PassThru
# $api::WaitOnAddress(Address, CompareAddress, AddressSize, dwMilliseconds)
#uselib "api-ms-win-core-synch-l1-2-0.dll"
#func global WaitOnAddress "WaitOnAddress" sptr, sptr, sptr, sptr
; WaitOnAddress Address, CompareAddress, AddressSize, dwMilliseconds   ; 戻り値は stat
; Address : void* -> "sptr"
; CompareAddress : void* -> "sptr"
; AddressSize : UINT_PTR -> "sptr"
; dwMilliseconds : DWORD optional -> "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。
#uselib "api-ms-win-core-synch-l1-2-0.dll"
#cfunc global WaitOnAddress "WaitOnAddress" sptr, sptr, sptr, int
; res = WaitOnAddress(Address, CompareAddress, AddressSize, dwMilliseconds)
; Address : void* -> "sptr"
; CompareAddress : void* -> "sptr"
; AddressSize : UINT_PTR -> "sptr"
; dwMilliseconds : DWORD optional -> "int"
; BOOL WaitOnAddress(void* Address, void* CompareAddress, UINT_PTR AddressSize, DWORD dwMilliseconds)
#uselib "api-ms-win-core-synch-l1-2-0.dll"
#cfunc global WaitOnAddress "WaitOnAddress" intptr, intptr, intptr, int
; res = WaitOnAddress(Address, CompareAddress, AddressSize, dwMilliseconds)
; Address : void* -> "intptr"
; CompareAddress : void* -> "intptr"
; AddressSize : UINT_PTR -> "intptr"
; dwMilliseconds : DWORD optional -> "int"
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	api_ms_win_core_synch_l1_2_0 = windows.NewLazySystemDLL("api-ms-win-core-synch-l1-2-0.dll")
	procWaitOnAddress = api_ms_win_core_synch_l1_2_0.NewProc("WaitOnAddress")
)

// Address (void*), CompareAddress (void*), AddressSize (UINT_PTR), dwMilliseconds (DWORD optional)
r1, _, err := procWaitOnAddress.Call(
	uintptr(Address),
	uintptr(CompareAddress),
	uintptr(AddressSize),
	uintptr(dwMilliseconds),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL
function WaitOnAddress(
  Address: Pointer;   // void*
  CompareAddress: Pointer;   // void*
  AddressSize: NativeUInt;   // UINT_PTR
  dwMilliseconds: DWORD   // DWORD optional
): BOOL; stdcall;
  external 'api-ms-win-core-synch-l1-2-0.dll' name 'WaitOnAddress';
result := DllCall("api-ms-win-core-synch-l1-2-0\WaitOnAddress"
    , "Ptr", Address   ; void*
    , "Ptr", CompareAddress   ; void*
    , "UPtr", AddressSize   ; UINT_PTR
    , "UInt", dwMilliseconds   ; DWORD optional
    , "Int")   ; return: BOOL
●WaitOnAddress(Address, CompareAddress, AddressSize, dwMilliseconds) = DLL("api-ms-win-core-synch-l1-2-0.dll", "bool WaitOnAddress(void*, void*, int, dword)")
# 呼び出し: WaitOnAddress(Address, CompareAddress, AddressSize, dwMilliseconds)
# Address : void* -> "void*"
# CompareAddress : void* -> "void*"
# AddressSize : UINT_PTR -> "int"
# dwMilliseconds : DWORD optional -> "dword"
# 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)。