mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
1.8 KiB
67 lines
1.8 KiB
//
|
|
// REGFKEY.C
|
|
//
|
|
// Copyright (C) Microsoft Corporation, 1995
|
|
//
|
|
// Implementation of RegFlushKey and supporting functions.
|
|
//
|
|
|
|
#include "pch.h"
|
|
|
|
// Magic HKEY used by Setup to disable disk I/O for the duration of this
|
|
// Windows session (you must restart to re-enable disk I/O). This is done
|
|
// just before the new SYSTEM.DAT and USER.DAT are copied to their final
|
|
// destination.
|
|
#define HKEY_DISABLE_REG (HKEY) 0x484A574D
|
|
|
|
// Magic HKEY used by CONFIGMG to force a flush of the registry before we've
|
|
// received our normal post-critical init call.
|
|
#define HKEY_CRITICAL_FLUSH (HKEY) 0x5350574D
|
|
|
|
//
|
|
// VMMRegFlushKey
|
|
//
|
|
|
|
LONG
|
|
REGAPI
|
|
VMMRegFlushKey(
|
|
HKEY hKey
|
|
)
|
|
{
|
|
|
|
int ErrorCode;
|
|
|
|
if (!RgLockRegistry())
|
|
return ERROR_LOCK_FAILED;
|
|
|
|
#ifdef VXD
|
|
// Set the g_RgFileAccessDisabled flag so that all create or open file
|
|
// calls will be failed. The backing stores for our files are about to
|
|
// be changed, so there's no file for us to go to.
|
|
if (hKey == HKEY_DISABLE_REG) {
|
|
g_RgFileAccessDisabled = TRUE;
|
|
ErrorCode = ERROR_SUCCESS;
|
|
goto ReturnErrorCode;
|
|
}
|
|
|
|
// Set the g_RgPostCriticalInit flag so that all I/O calls will go to disk
|
|
// instead of the XMS cache. The XMS cache will be freed when/if the
|
|
// normal post critical init routine is called, but we should only be
|
|
// getting this call when we're about to die, so it doesn't really matter.
|
|
if (hKey == HKEY_CRITICAL_FLUSH) {
|
|
g_RgPostCriticalInit = TRUE;
|
|
hKey = HKEY_LOCAL_MACHINE;
|
|
}
|
|
#endif
|
|
|
|
if ((ErrorCode = RgValidateAndConvertKeyHandle(&hKey)) == ERROR_SUCCESS)
|
|
ErrorCode = RgFlushFileInfo(hKey-> lpFileInfo);
|
|
|
|
#ifdef VXD
|
|
ReturnErrorCode:
|
|
#endif
|
|
RgUnlockRegistry();
|
|
|
|
return ErrorCode;
|
|
|
|
}
|