JetExternalRestore2W

// ESENT.dll  (Unicode / -W)
#include <windows.h>

INT JetExternalRestore2W(
    WORD* szCheckpointFilePath,
    WORD* szLogPath,
    JET_RSTMAP_W* rgrstmap,   // optional
    INT crstfilemap,
    WORD* szBackupLogPath,
    JET_LOGINFO_W* pLogInfo,
    WORD* szTargetInstanceName,   // optional
    WORD* szTargetInstanceLogPath,   // optional
    WORD* szTargetInstanceCheckpointPath,   // optional
    JET_PFNSTATUS pfn
);

<DllImport("ESENT.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function JetExternalRestore2W(
    ByRef szCheckpointFilePath As UShort,   ' WORD*
    ByRef szLogPath As UShort,   ' WORD*
    rgrstmap As IntPtr,   ' JET_RSTMAP_W* optional
    crstfilemap As Integer,   ' INT
    ByRef szBackupLogPath As UShort,   ' WORD*
    pLogInfo As IntPtr,   ' JET_LOGINFO_W* in/out
    szTargetInstanceName As IntPtr,   ' WORD* optional
    szTargetInstanceLogPath As IntPtr,   ' WORD* optional
    szTargetInstanceCheckpointPath As IntPtr,   ' WORD* optional
    pfn As IntPtr   ' JET_PFNSTATUS
) As Integer
End Function

' szCheckpointFilePath : WORD*
' szLogPath : WORD*
' rgrstmap : JET_RSTMAP_W* optional
' crstfilemap : INT
' szBackupLogPath : WORD*
' pLogInfo : JET_LOGINFO_W* in/out
' szTargetInstanceName : WORD* optional
' szTargetInstanceLogPath : WORD* optional
' szTargetInstanceCheckpointPath : WORD* optional
' pfn : JET_PFNSTATUS
Declare PtrSafe Function JetExternalRestore2W Lib "esent" ( _
    ByRef szCheckpointFilePath As Integer, _
    ByRef szLogPath As Integer, _
    ByVal rgrstmap As LongPtr, _
    ByVal crstfilemap As Long, _
    ByRef szBackupLogPath As Integer, _
    ByVal pLogInfo As LongPtr, _
    ByVal szTargetInstanceName As LongPtr, _
    ByVal szTargetInstanceLogPath As LongPtr, _
    ByVal szTargetInstanceCheckpointPath As LongPtr, _
    ByVal pfn As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

JetExternalRestore2W = ctypes.windll.esent.JetExternalRestore2W
JetExternalRestore2W.restype = ctypes.c_int
JetExternalRestore2W.argtypes = [
    ctypes.POINTER(ctypes.c_ushort),  # szCheckpointFilePath : WORD*
    ctypes.POINTER(ctypes.c_ushort),  # szLogPath : WORD*
    ctypes.c_void_p,  # rgrstmap : JET_RSTMAP_W* optional
    ctypes.c_int,  # crstfilemap : INT
    ctypes.POINTER(ctypes.c_ushort),  # szBackupLogPath : WORD*
    ctypes.c_void_p,  # pLogInfo : JET_LOGINFO_W* in/out
    ctypes.POINTER(ctypes.c_ushort),  # szTargetInstanceName : WORD* optional
    ctypes.POINTER(ctypes.c_ushort),  # szTargetInstanceLogPath : WORD* optional
    ctypes.POINTER(ctypes.c_ushort),  # szTargetInstanceCheckpointPath : WORD* optional
    ctypes.c_void_p,  # pfn : JET_PFNSTATUS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetExternalRestore2W = Fiddle::Function.new(
  lib['JetExternalRestore2W'],
  [
    Fiddle::TYPE_VOIDP,  # szCheckpointFilePath : WORD*
    Fiddle::TYPE_VOIDP,  # szLogPath : WORD*
    Fiddle::TYPE_VOIDP,  # rgrstmap : JET_RSTMAP_W* optional
    Fiddle::TYPE_INT,  # crstfilemap : INT
    Fiddle::TYPE_VOIDP,  # szBackupLogPath : WORD*
    Fiddle::TYPE_VOIDP,  # pLogInfo : JET_LOGINFO_W* in/out
    Fiddle::TYPE_VOIDP,  # szTargetInstanceName : WORD* optional
    Fiddle::TYPE_VOIDP,  # szTargetInstanceLogPath : WORD* optional
    Fiddle::TYPE_VOIDP,  # szTargetInstanceCheckpointPath : WORD* optional
    Fiddle::TYPE_VOIDP,  # pfn : JET_PFNSTATUS
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "esent")]
extern "system" {
    fn JetExternalRestore2W(
        szCheckpointFilePath: *mut u16,  // WORD*
        szLogPath: *mut u16,  // WORD*
        rgrstmap: *mut JET_RSTMAP_W,  // JET_RSTMAP_W* optional
        crstfilemap: i32,  // INT
        szBackupLogPath: *mut u16,  // WORD*
        pLogInfo: *mut JET_LOGINFO_W,  // JET_LOGINFO_W* in/out
        szTargetInstanceName: *mut u16,  // WORD* optional
        szTargetInstanceLogPath: *mut u16,  // WORD* optional
        szTargetInstanceCheckpointPath: *mut u16,  // WORD* optional
        pfn: *const core::ffi::c_void  // JET_PFNSTATUS
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ESENT.dll", CharSet = CharSet.Unicode)]
public static extern int JetExternalRestore2W(ref ushort szCheckpointFilePath, ref ushort szLogPath, IntPtr rgrstmap, int crstfilemap, ref ushort szBackupLogPath, IntPtr pLogInfo, IntPtr szTargetInstanceName, IntPtr szTargetInstanceLogPath, IntPtr szTargetInstanceCheckpointPath, IntPtr pfn);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetExternalRestore2W' -Namespace Win32 -PassThru
# $api::JetExternalRestore2W(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, pLogInfo, szTargetInstanceName, szTargetInstanceLogPath, szTargetInstanceCheckpointPath, pfn)

#uselib "ESENT.dll"
#func global JetExternalRestore2W "JetExternalRestore2W" wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr
; JetExternalRestore2W varptr(szCheckpointFilePath), varptr(szLogPath), varptr(rgrstmap), crstfilemap, varptr(szBackupLogPath), varptr(pLogInfo), varptr(szTargetInstanceName), varptr(szTargetInstanceLogPath), varptr(szTargetInstanceCheckpointPath), pfn   ; 戻り値は stat
; szCheckpointFilePath : WORD* -> "wptr"
; szLogPath : WORD* -> "wptr"
; rgrstmap : JET_RSTMAP_W* optional -> "wptr"
; crstfilemap : INT -> "wptr"
; szBackupLogPath : WORD* -> "wptr"
; pLogInfo : JET_LOGINFO_W* in/out -> "wptr"
; szTargetInstanceName : WORD* optional -> "wptr"
; szTargetInstanceLogPath : WORD* optional -> "wptr"
; szTargetInstanceCheckpointPath : WORD* optional -> "wptr"
; pfn : JET_PFNSTATUS -> "wptr"
; ※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。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	esent = windows.NewLazySystemDLL("ESENT.dll")
	procJetExternalRestore2W = esent.NewProc("JetExternalRestore2W")
)

// szCheckpointFilePath (WORD*), szLogPath (WORD*), rgrstmap (JET_RSTMAP_W* optional), crstfilemap (INT), szBackupLogPath (WORD*), pLogInfo (JET_LOGINFO_W* in/out), szTargetInstanceName (WORD* optional), szTargetInstanceLogPath (WORD* optional), szTargetInstanceCheckpointPath (WORD* optional), pfn (JET_PFNSTATUS)
r1, _, err := procJetExternalRestore2W.Call(
	uintptr(szCheckpointFilePath),
	uintptr(szLogPath),
	uintptr(rgrstmap),
	uintptr(crstfilemap),
	uintptr(szBackupLogPath),
	uintptr(pLogInfo),
	uintptr(szTargetInstanceName),
	uintptr(szTargetInstanceLogPath),
	uintptr(szTargetInstanceCheckpointPath),
	uintptr(pfn),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetExternalRestore2W(
  szCheckpointFilePath: Pointer;   // WORD*
  szLogPath: Pointer;   // WORD*
  rgrstmap: Pointer;   // JET_RSTMAP_W* optional
  crstfilemap: Integer;   // INT
  szBackupLogPath: Pointer;   // WORD*
  pLogInfo: Pointer;   // JET_LOGINFO_W* in/out
  szTargetInstanceName: Pointer;   // WORD* optional
  szTargetInstanceLogPath: Pointer;   // WORD* optional
  szTargetInstanceCheckpointPath: Pointer;   // WORD* optional
  pfn: Pointer   // JET_PFNSTATUS
): Integer; stdcall;
  external 'ESENT.dll' name 'JetExternalRestore2W';

result := DllCall("ESENT\JetExternalRestore2W"
    , "Ptr", szCheckpointFilePath   ; WORD*
    , "Ptr", szLogPath   ; WORD*
    , "Ptr", rgrstmap   ; JET_RSTMAP_W* optional
    , "Int", crstfilemap   ; INT
    , "Ptr", szBackupLogPath   ; WORD*
    , "Ptr", pLogInfo   ; JET_LOGINFO_W* in/out
    , "Ptr", szTargetInstanceName   ; WORD* optional
    , "Ptr", szTargetInstanceLogPath   ; WORD* optional
    , "Ptr", szTargetInstanceCheckpointPath   ; WORD* optional
    , "Ptr", pfn   ; JET_PFNSTATUS
    , "Int")   ; return: INT

●JetExternalRestore2W(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, pLogInfo, szTargetInstanceName, szTargetInstanceLogPath, szTargetInstanceCheckpointPath, pfn) = DLL("ESENT.dll", "int JetExternalRestore2W(void*, void*, void*, int, void*, void*, void*, void*, void*, void*)")
# 呼び出し: JetExternalRestore2W(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, pLogInfo, szTargetInstanceName, szTargetInstanceLogPath, szTargetInstanceCheckpointPath, pfn)
# szCheckpointFilePath : WORD* -> "void*"
# szLogPath : WORD* -> "void*"
# rgrstmap : JET_RSTMAP_W* optional -> "void*"
# crstfilemap : INT -> "int"
# szBackupLogPath : WORD* -> "void*"
# pLogInfo : JET_LOGINFO_W* in/out -> "void*"
# szTargetInstanceName : WORD* optional -> "void*"
# szTargetInstanceLogPath : WORD* optional -> "void*"
# szTargetInstanceCheckpointPath : WORD* optional -> "void*"
# pfn : JET_PFNSTATUS -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。

const std = @import("std");

extern "esent" fn JetExternalRestore2W(
    szCheckpointFilePath: [*c]u16, // WORD*
    szLogPath: [*c]u16, // WORD*
    rgrstmap: [*c]JET_RSTMAP_W, // JET_RSTMAP_W* optional
    crstfilemap: i32, // INT
    szBackupLogPath: [*c]u16, // WORD*
    pLogInfo: [*c]JET_LOGINFO_W, // JET_LOGINFO_W* in/out
    szTargetInstanceName: [*c]u16, // WORD* optional
    szTargetInstanceLogPath: [*c]u16, // WORD* optional
    szTargetInstanceCheckpointPath: [*c]u16, // WORD* optional
    pfn: ?*anyopaque // JET_PFNSTATUS
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc JetExternalRestore2W(
    szCheckpointFilePath: ptr uint16,  # WORD*
    szLogPath: ptr uint16,  # WORD*
    rgrstmap: ptr JET_RSTMAP_W,  # JET_RSTMAP_W* optional
    crstfilemap: int32,  # INT
    szBackupLogPath: ptr uint16,  # WORD*
    pLogInfo: ptr JET_LOGINFO_W,  # JET_LOGINFO_W* in/out
    szTargetInstanceName: ptr uint16,  # WORD* optional
    szTargetInstanceLogPath: ptr uint16,  # WORD* optional
    szTargetInstanceCheckpointPath: ptr uint16,  # WORD* optional
    pfn: pointer  # JET_PFNSTATUS
): int32 {.importc: "JetExternalRestore2W", stdcall, dynlib: "ESENT.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "esent");
extern(Windows)
int JetExternalRestore2W(
    ushort* szCheckpointFilePath,   // WORD*
    ushort* szLogPath,   // WORD*
    JET_RSTMAP_W* rgrstmap,   // JET_RSTMAP_W* optional
    int crstfilemap,   // INT
    ushort* szBackupLogPath,   // WORD*
    JET_LOGINFO_W* pLogInfo,   // JET_LOGINFO_W* in/out
    ushort* szTargetInstanceName,   // WORD* optional
    ushort* szTargetInstanceLogPath,   // WORD* optional
    ushort* szTargetInstanceCheckpointPath,   // WORD* optional
    void* pfn   // JET_PFNSTATUS
);

ccall((:JetExternalRestore2W, "ESENT.dll"), stdcall, Int32,
      (Ptr{UInt16}, Ptr{UInt16}, Ptr{JET_RSTMAP_W}, Int32, Ptr{UInt16}, Ptr{JET_LOGINFO_W}, Ptr{UInt16}, Ptr{UInt16}, Ptr{UInt16}, Ptr{Cvoid}),
      szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, pLogInfo, szTargetInstanceName, szTargetInstanceLogPath, szTargetInstanceCheckpointPath, pfn)
# szCheckpointFilePath : WORD* -> Ptr{UInt16}
# szLogPath : WORD* -> Ptr{UInt16}
# rgrstmap : JET_RSTMAP_W* optional -> Ptr{JET_RSTMAP_W}
# crstfilemap : INT -> Int32
# szBackupLogPath : WORD* -> Ptr{UInt16}
# pLogInfo : JET_LOGINFO_W* in/out -> Ptr{JET_LOGINFO_W}
# szTargetInstanceName : WORD* optional -> Ptr{UInt16}
# szTargetInstanceLogPath : WORD* optional -> Ptr{UInt16}
# szTargetInstanceCheckpointPath : WORD* optional -> Ptr{UInt16}
# pfn : JET_PFNSTATUS -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
int32_t JetExternalRestore2W(
    uint16_t* szCheckpointFilePath,
    uint16_t* szLogPath,
    void* rgrstmap,
    int32_t crstfilemap,
    uint16_t* szBackupLogPath,
    void* pLogInfo,
    uint16_t* szTargetInstanceName,
    uint16_t* szTargetInstanceLogPath,
    uint16_t* szTargetInstanceCheckpointPath,
    void* pfn);
]]
local esent = ffi.load("esent")
-- esent.JetExternalRestore2W(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, pLogInfo, szTargetInstanceName, szTargetInstanceLogPath, szTargetInstanceCheckpointPath, pfn)
-- szCheckpointFilePath : WORD*
-- szLogPath : WORD*
-- rgrstmap : JET_RSTMAP_W* optional
-- crstfilemap : INT
-- szBackupLogPath : WORD*
-- pLogInfo : JET_LOGINFO_W* in/out
-- szTargetInstanceName : WORD* optional
-- szTargetInstanceLogPath : WORD* optional
-- szTargetInstanceCheckpointPath : WORD* optional
-- pfn : JET_PFNSTATUS
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('ESENT.dll');
const JetExternalRestore2W = lib.func('__stdcall', 'JetExternalRestore2W', 'int32_t', ['uint16_t *', 'uint16_t *', 'void *', 'int32_t', 'uint16_t *', 'void *', 'uint16_t *', 'uint16_t *', 'uint16_t *', 'void *']);
// JetExternalRestore2W(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, pLogInfo, szTargetInstanceName, szTargetInstanceLogPath, szTargetInstanceCheckpointPath, pfn)
// szCheckpointFilePath : WORD* -> 'uint16_t *'
// szLogPath : WORD* -> 'uint16_t *'
// rgrstmap : JET_RSTMAP_W* optional -> 'void *'
// crstfilemap : INT -> 'int32_t'
// szBackupLogPath : WORD* -> 'uint16_t *'
// pLogInfo : JET_LOGINFO_W* in/out -> 'void *'
// szTargetInstanceName : WORD* optional -> 'uint16_t *'
// szTargetInstanceLogPath : WORD* optional -> 'uint16_t *'
// szTargetInstanceCheckpointPath : WORD* optional -> 'uint16_t *'
// pfn : JET_PFNSTATUS -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。
// コールバック(関数ポインタ)は koffi.proto/koffi.register で型を定義して渡す(素の void* では JS 関数を渡せない)。

const lib = Deno.dlopen("ESENT.dll", {
  JetExternalRestore2W: { parameters: ["pointer", "pointer", "pointer", "i32", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.JetExternalRestore2W(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, pLogInfo, szTargetInstanceName, szTargetInstanceLogPath, szTargetInstanceCheckpointPath, pfn)
// szCheckpointFilePath : WORD* -> "pointer"
// szLogPath : WORD* -> "pointer"
// rgrstmap : JET_RSTMAP_W* optional -> "pointer"
// crstfilemap : INT -> "i32"
// szBackupLogPath : WORD* -> "pointer"
// pLogInfo : JET_LOGINFO_W* in/out -> "pointer"
// szTargetInstanceName : WORD* optional -> "pointer"
// szTargetInstanceLogPath : WORD* optional -> "pointer"
// szTargetInstanceCheckpointPath : WORD* optional -> "pointer"
// pfn : JET_PFNSTATUS -> "pointer"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)を Uint8Array で渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t JetExternalRestore2W(
    uint16_t* szCheckpointFilePath,
    uint16_t* szLogPath,
    void* rgrstmap,
    int32_t crstfilemap,
    uint16_t* szBackupLogPath,
    void* pLogInfo,
    uint16_t* szTargetInstanceName,
    uint16_t* szTargetInstanceLogPath,
    uint16_t* szTargetInstanceCheckpointPath,
    void* pfn);
C, "ESENT.dll");
// $ffi->JetExternalRestore2W(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, pLogInfo, szTargetInstanceName, szTargetInstanceLogPath, szTargetInstanceCheckpointPath, pfn);
// szCheckpointFilePath : WORD*
// szLogPath : WORD*
// rgrstmap : JET_RSTMAP_W* optional
// crstfilemap : INT
// szBackupLogPath : WORD*
// pLogInfo : JET_LOGINFO_W* in/out
// szTargetInstanceName : WORD* optional
// szTargetInstanceLogPath : WORD* optional
// szTargetInstanceCheckpointPath : WORD* optional
// pfn : JET_PFNSTATUS
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Esent extends StdCallLibrary {
    Esent INSTANCE = Native.load("esent", Esent.class, W32APIOptions.UNICODE_OPTIONS);
    int JetExternalRestore2W(
        ShortByReference szCheckpointFilePath,   // WORD*
        ShortByReference szLogPath,   // WORD*
        Pointer rgrstmap,   // JET_RSTMAP_W* optional
        int crstfilemap,   // INT
        ShortByReference szBackupLogPath,   // WORD*
        Pointer pLogInfo,   // JET_LOGINFO_W* in/out
        ShortByReference szTargetInstanceName,   // WORD* optional
        ShortByReference szTargetInstanceLogPath,   // WORD* optional
        ShortByReference szTargetInstanceCheckpointPath,   // WORD* optional
        Callback pfn   // JET_PFNSTATUS
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("esent")]
lib LibESENT
  fun JetExternalRestore2W = JetExternalRestore2W(
    szCheckpointFilePath : UInt16*,   # WORD*
    szLogPath : UInt16*,   # WORD*
    rgrstmap : JET_RSTMAP_W*,   # JET_RSTMAP_W* optional
    crstfilemap : Int32,   # INT
    szBackupLogPath : UInt16*,   # WORD*
    pLogInfo : JET_LOGINFO_W*,   # JET_LOGINFO_W* in/out
    szTargetInstanceName : UInt16*,   # WORD* optional
    szTargetInstanceLogPath : UInt16*,   # WORD* optional
    szTargetInstanceCheckpointPath : UInt16*,   # WORD* optional
    pfn : Void*   # JET_PFNSTATUS
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef JetExternalRestore2WNative = Int32 Function(Pointer<Uint16>, Pointer<Uint16>, Pointer<Void>, Int32, Pointer<Uint16>, Pointer<Void>, Pointer<Uint16>, Pointer<Uint16>, Pointer<Uint16>, Pointer<Void>);
typedef JetExternalRestore2WDart = int Function(Pointer<Uint16>, Pointer<Uint16>, Pointer<Void>, int, Pointer<Uint16>, Pointer<Void>, Pointer<Uint16>, Pointer<Uint16>, Pointer<Uint16>, Pointer<Void>);
final JetExternalRestore2W = DynamicLibrary.open('ESENT.dll')
    .lookupFunction<JetExternalRestore2WNative, JetExternalRestore2WDart>('JetExternalRestore2W');
// szCheckpointFilePath : WORD* -> Pointer<Uint16>
// szLogPath : WORD* -> Pointer<Uint16>
// rgrstmap : JET_RSTMAP_W* optional -> Pointer<Void>
// crstfilemap : INT -> Int32
// szBackupLogPath : WORD* -> Pointer<Uint16>
// pLogInfo : JET_LOGINFO_W* in/out -> Pointer<Void>
// szTargetInstanceName : WORD* optional -> Pointer<Uint16>
// szTargetInstanceLogPath : WORD* optional -> Pointer<Uint16>
// szTargetInstanceCheckpointPath : WORD* optional -> Pointer<Uint16>
// pfn : JET_PFNSTATUS -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function JetExternalRestore2W(
  szCheckpointFilePath: Pointer;   // WORD*
  szLogPath: Pointer;   // WORD*
  rgrstmap: Pointer;   // JET_RSTMAP_W* optional
  crstfilemap: Integer;   // INT
  szBackupLogPath: Pointer;   // WORD*
  pLogInfo: Pointer;   // JET_LOGINFO_W* in/out
  szTargetInstanceName: Pointer;   // WORD* optional
  szTargetInstanceLogPath: Pointer;   // WORD* optional
  szTargetInstanceCheckpointPath: Pointer;   // WORD* optional
  pfn: Pointer   // JET_PFNSTATUS
): Integer; stdcall;
  external 'ESENT.dll' name 'JetExternalRestore2W';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "JetExternalRestore2W"
  c_JetExternalRestore2W :: Ptr Word16 -> Ptr Word16 -> Ptr () -> Int32 -> Ptr Word16 -> Ptr () -> Ptr Word16 -> Ptr Word16 -> Ptr Word16 -> Ptr () -> IO Int32
-- szCheckpointFilePath : WORD* -> Ptr Word16
-- szLogPath : WORD* -> Ptr Word16
-- rgrstmap : JET_RSTMAP_W* optional -> Ptr ()
-- crstfilemap : INT -> Int32
-- szBackupLogPath : WORD* -> Ptr Word16
-- pLogInfo : JET_LOGINFO_W* in/out -> Ptr ()
-- szTargetInstanceName : WORD* optional -> Ptr Word16
-- szTargetInstanceLogPath : WORD* optional -> Ptr Word16
-- szTargetInstanceCheckpointPath : WORD* optional -> Ptr Word16
-- pfn : JET_PFNSTATUS -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let jetexternalrestore2w =
  foreign "JetExternalRestore2W"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> (ptr void) @-> int32_t @-> (ptr uint16_t) @-> (ptr void) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr void) @-> returning int32_t)
(* szCheckpointFilePath : WORD* -> (ptr uint16_t) *)
(* szLogPath : WORD* -> (ptr uint16_t) *)
(* rgrstmap : JET_RSTMAP_W* optional -> (ptr void) *)
(* crstfilemap : INT -> int32_t *)
(* szBackupLogPath : WORD* -> (ptr uint16_t) *)
(* pLogInfo : JET_LOGINFO_W* in/out -> (ptr void) *)
(* szTargetInstanceName : WORD* optional -> (ptr uint16_t) *)
(* szTargetInstanceLogPath : WORD* optional -> (ptr uint16_t) *)
(* szTargetInstanceCheckpointPath : WORD* optional -> (ptr uint16_t) *)
(* pfn : JET_PFNSTATUS -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library esent (t "ESENT.dll"))
(cffi:use-foreign-library esent)

(cffi:defcfun ("JetExternalRestore2W" jet-external-restore2-w :convention :stdcall) :int32
  (sz-checkpoint-file-path :pointer)   ; WORD*
  (sz-log-path :pointer)   ; WORD*
  (rgrstmap :pointer)   ; JET_RSTMAP_W* optional
  (crstfilemap :int32)   ; INT
  (sz-backup-log-path :pointer)   ; WORD*
  (p-log-info :pointer)   ; JET_LOGINFO_W* in/out
  (sz-target-instance-name :pointer)   ; WORD* optional
  (sz-target-instance-log-path :pointer)   ; WORD* optional
  (sz-target-instance-checkpoint-path :pointer)   ; WORD* optional
  (pfn :pointer))   ; JET_PFNSTATUS
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $JetExternalRestore2W = Win32::API::More->new('ESENT',
    'int JetExternalRestore2W(LPVOID szCheckpointFilePath, LPVOID szLogPath, LPVOID rgrstmap, int crstfilemap, LPVOID szBackupLogPath, LPVOID pLogInfo, LPVOID szTargetInstanceName, LPVOID szTargetInstanceLogPath, LPVOID szTargetInstanceCheckpointPath, LPVOID pfn)');
# my $ret = $JetExternalRestore2W->Call($szCheckpointFilePath, $szLogPath, $rgrstmap, $crstfilemap, $szBackupLogPath, $pLogInfo, $szTargetInstanceName, $szTargetInstanceLogPath, $szTargetInstanceCheckpointPath, $pfn);
# szCheckpointFilePath : WORD* -> LPVOID
# szLogPath : WORD* -> LPVOID
# rgrstmap : JET_RSTMAP_W* optional -> LPVOID
# crstfilemap : INT -> int
# szBackupLogPath : WORD* -> LPVOID
# pLogInfo : JET_LOGINFO_W* in/out -> LPVOID
# szTargetInstanceName : WORD* optional -> LPVOID
# szTargetInstanceLogPath : WORD* optional -> LPVOID
# szTargetInstanceCheckpointPath : WORD* optional -> LPVOID
# pfn : JET_PFNSTATUS -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# コールバック(関数ポインタ)は Perl sub を直接渡せません。Win32::API::Callback を使用してください。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。