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LeaveCriticalSectionWhenCallbackReturns

関数

コールバック完了時にクリティカルセクションを離脱する。

DLLKERNEL32.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

void LeaveCriticalSectionWhenCallbackReturns(
    PTP_CALLBACK_INSTANCE pci,
    CRITICAL_SECTION* pcs
);

パラメーター

名前	型	方向
pci	PTP_CALLBACK_INSTANCE	in
pcs	CRITICAL_SECTION*	inout

戻り値の型: void

各言語での呼び出し定義

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

void LeaveCriticalSectionWhenCallbackReturns(
    PTP_CALLBACK_INSTANCE pci,
    CRITICAL_SECTION* pcs
);

[DllImport("KERNEL32.dll", ExactSpelling = true)]
static extern void LeaveCriticalSectionWhenCallbackReturns(
    IntPtr pci,   // PTP_CALLBACK_INSTANCE
    IntPtr pcs   // CRITICAL_SECTION* in/out
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Sub LeaveCriticalSectionWhenCallbackReturns(
    pci As IntPtr,   ' PTP_CALLBACK_INSTANCE
    pcs As IntPtr   ' CRITICAL_SECTION* in/out
)
End Sub

' pci : PTP_CALLBACK_INSTANCE
' pcs : CRITICAL_SECTION* in/out
Declare PtrSafe Sub LeaveCriticalSectionWhenCallbackReturns Lib "kernel32" ( _
    ByVal pci As LongPtr, _
    ByVal pcs As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

LeaveCriticalSectionWhenCallbackReturns = ctypes.windll.kernel32.LeaveCriticalSectionWhenCallbackReturns
LeaveCriticalSectionWhenCallbackReturns.restype = None
LeaveCriticalSectionWhenCallbackReturns.argtypes = [
    ctypes.c_ssize_t,  # pci : PTP_CALLBACK_INSTANCE
    ctypes.c_void_p,  # pcs : CRITICAL_SECTION* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
LeaveCriticalSectionWhenCallbackReturns = Fiddle::Function.new(
  lib['LeaveCriticalSectionWhenCallbackReturns'],
  [
    Fiddle::TYPE_INTPTR_T,  # pci : PTP_CALLBACK_INSTANCE
    Fiddle::TYPE_VOIDP,  # pcs : CRITICAL_SECTION* in/out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "kernel32")]
extern "system" {
    fn LeaveCriticalSectionWhenCallbackReturns(
        pci: isize,  // PTP_CALLBACK_INSTANCE
        pcs: *mut CRITICAL_SECTION  // CRITICAL_SECTION* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern void LeaveCriticalSectionWhenCallbackReturns(IntPtr pci, IntPtr pcs);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_LeaveCriticalSectionWhenCallbackReturns' -Namespace Win32 -PassThru
# $api::LeaveCriticalSectionWhenCallbackReturns(pci, pcs)

#uselib "KERNEL32.dll"
#func global LeaveCriticalSectionWhenCallbackReturns "LeaveCriticalSectionWhenCallbackReturns" sptr, sptr
; LeaveCriticalSectionWhenCallbackReturns pci, varptr(pcs)
; pci : PTP_CALLBACK_INSTANCE -> "sptr"
; pcs : CRITICAL_SECTION* in/out -> "sptr"

出力引数:

#uselib "KERNEL32.dll"
#func global LeaveCriticalSectionWhenCallbackReturns "LeaveCriticalSectionWhenCallbackReturns" sptr, var
; LeaveCriticalSectionWhenCallbackReturns pci, pcs
; pci : PTP_CALLBACK_INSTANCE -> "sptr"
; pcs : CRITICAL_SECTION* in/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"
#func global LeaveCriticalSectionWhenCallbackReturns "LeaveCriticalSectionWhenCallbackReturns" sptr, sptr
; LeaveCriticalSectionWhenCallbackReturns pci, varptr(pcs)
; pci : PTP_CALLBACK_INSTANCE -> "sptr"
; pcs : CRITICAL_SECTION* in/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:

; void LeaveCriticalSectionWhenCallbackReturns(PTP_CALLBACK_INSTANCE pci, CRITICAL_SECTION* pcs)
#uselib "KERNEL32.dll"
#func global LeaveCriticalSectionWhenCallbackReturns "LeaveCriticalSectionWhenCallbackReturns" intptr, var
; LeaveCriticalSectionWhenCallbackReturns pci, pcs
; pci : PTP_CALLBACK_INSTANCE -> "intptr"
; pcs : CRITICAL_SECTION* in/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。; void LeaveCriticalSectionWhenCallbackReturns(PTP_CALLBACK_INSTANCE pci, CRITICAL_SECTION* pcs)
#uselib "KERNEL32.dll"
#func global LeaveCriticalSectionWhenCallbackReturns "LeaveCriticalSectionWhenCallbackReturns" intptr, intptr
; LeaveCriticalSectionWhenCallbackReturns pci, varptr(pcs)
; pci : PTP_CALLBACK_INSTANCE -> "intptr"
; pcs : CRITICAL_SECTION* in/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")
	procLeaveCriticalSectionWhenCallbackReturns = kernel32.NewProc("LeaveCriticalSectionWhenCallbackReturns")
)

// pci (PTP_CALLBACK_INSTANCE), pcs (CRITICAL_SECTION* in/out)
r1, _, err := procLeaveCriticalSectionWhenCallbackReturns.Call(
	uintptr(pci),
	uintptr(pcs),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure LeaveCriticalSectionWhenCallbackReturns(
  pci: NativeInt;   // PTP_CALLBACK_INSTANCE
  pcs: Pointer   // CRITICAL_SECTION* in/out
); stdcall;
  external 'KERNEL32.dll' name 'LeaveCriticalSectionWhenCallbackReturns';

result := DllCall("KERNEL32\LeaveCriticalSectionWhenCallbackReturns"
    , "Ptr", pci   ; PTP_CALLBACK_INSTANCE
    , "Ptr", pcs   ; CRITICAL_SECTION* in/out
    , "Int")   ; return: void

●LeaveCriticalSectionWhenCallbackReturns(pci, pcs) = DLL("KERNEL32.dll", "int LeaveCriticalSectionWhenCallbackReturns(int, void*)")
# 呼び出し: LeaveCriticalSectionWhenCallbackReturns(pci, pcs)
# pci : PTP_CALLBACK_INSTANCE -> "int"
# pcs : CRITICAL_SECTION* in/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)。