143 lines
3.3 KiB
C++
143 lines
3.3 KiB
C++
#include "shellprv.h"
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#pragma hdrstop
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#include "rssubdat.h"
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///////////////////////////////////////////////////////////////////////////////
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// Public methods
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///////////////////////////////////////////////////////////////////////////////
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BOOL CRSSubData::InitRegSupport(HKEY hkey, LPCTSTR pszKey1, LPCTSTR pszKey2,
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LPCTSTR pszKey3, DWORD cbSizeOfData,
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BOOL fVolatile)
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{
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DWORD dwDefaultOptions = REG_OPTION_NON_VOLATILE;
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if (fVolatile)
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{
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dwDefaultOptions = REG_OPTION_VOLATILE;
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}
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_SetSizeOfData(cbSizeOfData);
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RSInitRoot(hkey, pszKey1, pszKey2, REG_OPTION_NON_VOLATILE, dwDefaultOptions);
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RSCVInitSubKey(pszKey3);
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return TRUE;
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}
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BOOL CRSSubData::Update()
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{
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BOOL fRet = TRUE;
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BOOL fNeedUpdate = FALSE;
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if (!_fHoldUpdate)
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{
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if (_IsValid())
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{
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if (!_RSCVIsValidVersion())
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{
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DWORD cbSizeOfData = _cbSizeOfData;
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if (RSGetDWORDValue(RSCVGetSubKey(), TEXT("LastUpdate"), _GetTickLastUpdatePtr()) &&
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RSGetBinaryValue(RSCVGetSubKey(), TEXT("Cache"), (PBYTE)_GetDataPtr(), &cbSizeOfData))
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{
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if (cbSizeOfData != _cbSizeOfData)
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{
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fNeedUpdate = TRUE;
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}
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else
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{
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_RSCVUpdateVersionOnCacheRead();
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}
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}
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else
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{
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fNeedUpdate = TRUE;
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}
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}
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// Is the information expired?
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if (!fNeedUpdate && _IsExpired())
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{
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// Yes
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fNeedUpdate = TRUE;
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}
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}
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if (!_IsValid() || fNeedUpdate)
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{
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Invalidate();
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fRet = CSubData::Update();
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if (fRet)
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{
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_Propagate();
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}
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}
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}
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return fRet;
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}
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BOOL CRSSubData::Propagate()
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{
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return _Propagate();
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}
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BOOL CRSSubData::ExistInReg()
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{
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return RSSubKeyExist(RSCVGetSubKey());
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}
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void CRSSubData::WipeReg()
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{
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RSDeleteSubKey(RSCVGetSubKey());
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}
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void CRSSubData::Invalidate()
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{
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_RSCVIncrementRegVersion();
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CSubData::Invalidate();
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}
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CRSSubData::CRSSubData()
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{}
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void CRSSubData::_RSCVDeleteRegCache()
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{
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RSDeleteValue(RSCVGetSubKey(), TEXT("LastUpdate"));
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RSDeleteValue(RSCVGetSubKey(), TEXT("Cache"));
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}
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BOOL CRSSubData::_Propagate()
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{
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RSSetDWORDValue(RSCVGetSubKey(), TEXT("LastUpdate"), _GetTickLastUpdate());
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RSSetBinaryValue(RSCVGetSubKey(), TEXT("Cache"), (PBYTE)_GetDataPtr(), _cbSizeOfData);
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// HACKHACK - we increment twice, because it dont work if we do it only once.
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_RSCVUpdateVersionOnCacheWrite();
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_RSCVUpdateVersionOnCacheWrite();
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return TRUE;
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}
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BOOL CRSSubData::_RSSDGetDataFromReg()
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{
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DWORD cbSizeOfData = _cbSizeOfData;
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return RSGetBinaryValue(RSCVGetSubKey(), TEXT("Cache"),
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(PBYTE)_GetDataPtr(), &cbSizeOfData);
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}
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void CRSSubData::_SetSizeOfData(DWORD cbSizeOfData)
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{
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_cbSizeOfData = cbSizeOfData;
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}
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DWORD CRSSubData::_GetSizeOfData()
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{
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return _cbSizeOfData;
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} |