JetExternalRestoreA

関数

ログ世代を指定して外部バックアップから復元する(ANSI版)。

DLLESENT.dll文字セットANSI (-A)呼出規約winapi

シグネチャ

// ESENT.dll  (ANSI / -A)
#include <windows.h>

INT JetExternalRestoreA(
    CHAR* szCheckpointFilePath,
    CHAR* szLogPath,
    JET_RSTMAP_A* rgrstmap,   // optional
    INT crstfilemap,
    CHAR* szBackupLogPath,
    INT genLow,
    INT genHigh,
    JET_PFNSTATUS pfn
);

パラメーター

名前	型	方向
szCheckpointFilePath	CHAR*	in
szLogPath	CHAR*	in
rgrstmap	JET_RSTMAP_A*	inoptional
crstfilemap	INT	in
szBackupLogPath	CHAR*	in
genLow	INT	in
genHigh	INT	in
pfn	JET_PFNSTATUS	in

戻り値の型: INT

各言語での呼び出し定義

// ESENT.dll  (ANSI / -A)
#include <windows.h>

INT JetExternalRestoreA(
    CHAR* szCheckpointFilePath,
    CHAR* szLogPath,
    JET_RSTMAP_A* rgrstmap,   // optional
    INT crstfilemap,
    CHAR* szBackupLogPath,
    INT genLow,
    INT genHigh,
    JET_PFNSTATUS pfn
);

[DllImport("ESENT.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern int JetExternalRestoreA(
    IntPtr szCheckpointFilePath,   // CHAR*
    IntPtr szLogPath,   // CHAR*
    IntPtr rgrstmap,   // JET_RSTMAP_A* optional
    int crstfilemap,   // INT
    IntPtr szBackupLogPath,   // CHAR*
    int genLow,   // INT
    int genHigh,   // INT
    IntPtr pfn   // JET_PFNSTATUS
);

<DllImport("ESENT.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function JetExternalRestoreA(
    szCheckpointFilePath As IntPtr,   ' CHAR*
    szLogPath As IntPtr,   ' CHAR*
    rgrstmap As IntPtr,   ' JET_RSTMAP_A* optional
    crstfilemap As Integer,   ' INT
    szBackupLogPath As IntPtr,   ' CHAR*
    genLow As Integer,   ' INT
    genHigh As Integer,   ' INT
    pfn As IntPtr   ' JET_PFNSTATUS
) As Integer
End Function

' szCheckpointFilePath : CHAR*
' szLogPath : CHAR*
' rgrstmap : JET_RSTMAP_A* optional
' crstfilemap : INT
' szBackupLogPath : CHAR*
' genLow : INT
' genHigh : INT
' pfn : JET_PFNSTATUS
Declare PtrSafe Function JetExternalRestoreA Lib "esent" ( _
    ByVal szCheckpointFilePath As LongPtr, _
    ByVal szLogPath As LongPtr, _
    ByVal rgrstmap As LongPtr, _
    ByVal crstfilemap As Long, _
    ByVal szBackupLogPath As LongPtr, _
    ByVal genLow As Long, _
    ByVal genHigh As Long, _
    ByVal pfn 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

JetExternalRestoreA = ctypes.windll.esent.JetExternalRestoreA
JetExternalRestoreA.restype = ctypes.c_int
JetExternalRestoreA.argtypes = [
    ctypes.POINTER(ctypes.c_byte),  # szCheckpointFilePath : CHAR*
    ctypes.POINTER(ctypes.c_byte),  # szLogPath : CHAR*
    ctypes.c_void_p,  # rgrstmap : JET_RSTMAP_A* optional
    ctypes.c_int,  # crstfilemap : INT
    ctypes.POINTER(ctypes.c_byte),  # szBackupLogPath : CHAR*
    ctypes.c_int,  # genLow : INT
    ctypes.c_int,  # genHigh : INT
    ctypes.c_void_p,  # pfn : JET_PFNSTATUS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetExternalRestoreA = Fiddle::Function.new(
  lib['JetExternalRestoreA'],
  [
    Fiddle::TYPE_VOIDP,  # szCheckpointFilePath : CHAR*
    Fiddle::TYPE_VOIDP,  # szLogPath : CHAR*
    Fiddle::TYPE_VOIDP,  # rgrstmap : JET_RSTMAP_A* optional
    Fiddle::TYPE_INT,  # crstfilemap : INT
    Fiddle::TYPE_VOIDP,  # szBackupLogPath : CHAR*
    Fiddle::TYPE_INT,  # genLow : INT
    Fiddle::TYPE_INT,  # genHigh : INT
    Fiddle::TYPE_VOIDP,  # pfn : JET_PFNSTATUS
  ],
  Fiddle::TYPE_INT)

#[link(name = "esent")]
extern "system" {
    fn JetExternalRestoreA(
        szCheckpointFilePath: *mut i8,  // CHAR*
        szLogPath: *mut i8,  // CHAR*
        rgrstmap: *mut JET_RSTMAP_A,  // JET_RSTMAP_A* optional
        crstfilemap: i32,  // INT
        szBackupLogPath: *mut i8,  // CHAR*
        genLow: i32,  // INT
        genHigh: i32,  // INT
        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.Ansi)]
public static extern int JetExternalRestoreA(IntPtr szCheckpointFilePath, IntPtr szLogPath, IntPtr rgrstmap, int crstfilemap, IntPtr szBackupLogPath, int genLow, int genHigh, IntPtr pfn);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetExternalRestoreA' -Namespace Win32 -PassThru
# $api::JetExternalRestoreA(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, genLow, genHigh, pfn)

#uselib "ESENT.dll"
#func global JetExternalRestoreA "JetExternalRestoreA" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; JetExternalRestoreA varptr(szCheckpointFilePath), varptr(szLogPath), varptr(rgrstmap), crstfilemap, varptr(szBackupLogPath), genLow, genHigh, pfn   ; 戻り値は stat
; szCheckpointFilePath : CHAR* -> "sptr"
; szLogPath : CHAR* -> "sptr"
; rgrstmap : JET_RSTMAP_A* optional -> "sptr"
; crstfilemap : INT -> "sptr"
; szBackupLogPath : CHAR* -> "sptr"
; genLow : INT -> "sptr"
; genHigh : INT -> "sptr"
; pfn : JET_PFNSTATUS -> "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 "ESENT.dll"
#cfunc global JetExternalRestoreA "JetExternalRestoreA" var, var, var, int, var, int, int, sptr
; res = JetExternalRestoreA(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, genLow, genHigh, pfn)
; szCheckpointFilePath : CHAR* -> "var"
; szLogPath : CHAR* -> "var"
; rgrstmap : JET_RSTMAP_A* optional -> "var"
; crstfilemap : INT -> "int"
; szBackupLogPath : CHAR* -> "var"
; genLow : INT -> "int"
; genHigh : INT -> "int"
; pfn : JET_PFNSTATUS -> "sptr"
; ※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 "ESENT.dll"
#cfunc global JetExternalRestoreA "JetExternalRestoreA" sptr, sptr, sptr, int, sptr, int, int, sptr
; res = JetExternalRestoreA(varptr(szCheckpointFilePath), varptr(szLogPath), varptr(rgrstmap), crstfilemap, varptr(szBackupLogPath), genLow, genHigh, pfn)
; szCheckpointFilePath : CHAR* -> "sptr"
; szLogPath : CHAR* -> "sptr"
; rgrstmap : JET_RSTMAP_A* optional -> "sptr"
; crstfilemap : INT -> "int"
; szBackupLogPath : CHAR* -> "sptr"
; genLow : INT -> "int"
; genHigh : INT -> "int"
; pfn : JET_PFNSTATUS -> "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:

; INT JetExternalRestoreA(CHAR* szCheckpointFilePath, CHAR* szLogPath, JET_RSTMAP_A* rgrstmap, INT crstfilemap, CHAR* szBackupLogPath, INT genLow, INT genHigh, JET_PFNSTATUS pfn)
#uselib "ESENT.dll"
#cfunc global JetExternalRestoreA "JetExternalRestoreA" var, var, var, int, var, int, int, intptr
; res = JetExternalRestoreA(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, genLow, genHigh, pfn)
; szCheckpointFilePath : CHAR* -> "var"
; szLogPath : CHAR* -> "var"
; rgrstmap : JET_RSTMAP_A* optional -> "var"
; crstfilemap : INT -> "int"
; szBackupLogPath : CHAR* -> "var"
; genLow : INT -> "int"
; genHigh : INT -> "int"
; pfn : JET_PFNSTATUS -> "intptr"
; ※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。; INT JetExternalRestoreA(CHAR* szCheckpointFilePath, CHAR* szLogPath, JET_RSTMAP_A* rgrstmap, INT crstfilemap, CHAR* szBackupLogPath, INT genLow, INT genHigh, JET_PFNSTATUS pfn)
#uselib "ESENT.dll"
#cfunc global JetExternalRestoreA "JetExternalRestoreA" intptr, intptr, intptr, int, intptr, int, int, intptr
; res = JetExternalRestoreA(varptr(szCheckpointFilePath), varptr(szLogPath), varptr(rgrstmap), crstfilemap, varptr(szBackupLogPath), genLow, genHigh, pfn)
; szCheckpointFilePath : CHAR* -> "intptr"
; szLogPath : CHAR* -> "intptr"
; rgrstmap : JET_RSTMAP_A* optional -> "intptr"
; crstfilemap : INT -> "int"
; szBackupLogPath : CHAR* -> "intptr"
; genLow : INT -> "int"
; genHigh : INT -> "int"
; pfn : JET_PFNSTATUS -> "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 (
	esent = windows.NewLazySystemDLL("ESENT.dll")
	procJetExternalRestoreA = esent.NewProc("JetExternalRestoreA")
)

// szCheckpointFilePath (CHAR*), szLogPath (CHAR*), rgrstmap (JET_RSTMAP_A* optional), crstfilemap (INT), szBackupLogPath (CHAR*), genLow (INT), genHigh (INT), pfn (JET_PFNSTATUS)
r1, _, err := procJetExternalRestoreA.Call(
	uintptr(szCheckpointFilePath),
	uintptr(szLogPath),
	uintptr(rgrstmap),
	uintptr(crstfilemap),
	uintptr(szBackupLogPath),
	uintptr(genLow),
	uintptr(genHigh),
	uintptr(pfn),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetExternalRestoreA(
  szCheckpointFilePath: Pointer;   // CHAR*
  szLogPath: Pointer;   // CHAR*
  rgrstmap: Pointer;   // JET_RSTMAP_A* optional
  crstfilemap: Integer;   // INT
  szBackupLogPath: Pointer;   // CHAR*
  genLow: Integer;   // INT
  genHigh: Integer;   // INT
  pfn: Pointer   // JET_PFNSTATUS
): Integer; stdcall;
  external 'ESENT.dll' name 'JetExternalRestoreA';

result := DllCall("ESENT\JetExternalRestoreA"
    , "Ptr", szCheckpointFilePath   ; CHAR*
    , "Ptr", szLogPath   ; CHAR*
    , "Ptr", rgrstmap   ; JET_RSTMAP_A* optional
    , "Int", crstfilemap   ; INT
    , "Ptr", szBackupLogPath   ; CHAR*
    , "Int", genLow   ; INT
    , "Int", genHigh   ; INT
    , "Ptr", pfn   ; JET_PFNSTATUS
    , "Int")   ; return: INT

●JetExternalRestoreA(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, genLow, genHigh, pfn) = DLL("ESENT.dll", "int JetExternalRestoreA(void*, void*, void*, int, void*, int, int, void*)")
# 呼び出し: JetExternalRestoreA(szCheckpointFilePath, szLogPath, rgrstmap, crstfilemap, szBackupLogPath, genLow, genHigh, pfn)
# szCheckpointFilePath : CHAR* -> "void*"
# szLogPath : CHAR* -> "void*"
# rgrstmap : JET_RSTMAP_A* optional -> "void*"
# crstfilemap : INT -> "int"
# szBackupLogPath : CHAR* -> "void*"
# genLow : INT -> "int"
# genHigh : INT -> "int"
# 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)。