193 lines
7.8 KiB
C++
193 lines
7.8 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 2000.
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//
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// File: idqreg.cxx
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//
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// Contents: CIdqRegParams class
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//
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// History: 22 Oct 97 AlanW Created from params.cxx
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//
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//--------------------------------------------------------------------------
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#include <pch.cxx>
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#pragma hdrstop
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#include <ciregkey.hxx>
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#include <regacc.hxx>
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#include <params.hxx>
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const WCHAR * IS_DEFAULT_CATALOG_DIRECTORY = L"web";
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//+-------------------------------------------------------------------------
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//
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// Member: CIdqRegParams::CIdqRegParams, public
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//
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// Synopsis: Constructor for registry param object
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//
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// Arguments: - NONE -
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//
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// History: 12-Oct-96 dlee Created
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//
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//--------------------------------------------------------------------------
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CIdqRegParams::CIdqRegParams( )
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{
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SetDefault();
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Refresh( );
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} //CIdqRegParams
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//+-------------------------------------------------------------------------
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//
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// Member: CIdqRegVars::SetDefault, public
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//
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// Synopsis: Sets default values for registry params
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//
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// History: 12-Oct-96 dlee Added header
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//
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//--------------------------------------------------------------------------
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void CIdqRegVars::SetDefault()
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{
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_maxISRowsInResultSet = IS_MAX_ROWS_IN_RESULT_DEFAULT;
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_maxISQueryCache = IS_MAX_ENTRIES_IN_CACHE_DEFAULT;
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_ISFirstRowsInResultSet = IS_FIRST_ROWS_IN_RESULT_DEFAULT;
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_ISCachePurgeInterval = IS_QUERY_CACHE_PURGE_INTERVAL_DEFAULT;
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_ISRequestQueueSize = IS_QUERY_REQUEST_QUEUE_SIZE_DEFAULT;
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_ISRequestThresholdFactor = IS_QUERY_REQUEST_THRESHOLD_FACTOR_DEFAULT;
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_ISDateTimeFormatting = IS_QUERY_DATETIME_FORMATTING_DEFAULT;
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_ISDateTimeLocal = IS_QUERY_DATETIME_LOCAL_DEFAULT;
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_maxActiveQueryThreads = CI_MAX_ACTIVE_QUERY_THREADS_DEFAULT;
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wcscpy( _awcISDefaultCatalog, IS_DEFAULT_CATALOG_DIRECTORY );
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} //SetDefault
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//+-------------------------------------------------------------------------
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//
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// Member: CIdqRegParams::_ReadAndOverrideValues, private
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//
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// Synopsis: Attempts to read values, with the default being the current
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// value.
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//
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// History: 12-Oct-96 dlee created
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//
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//--------------------------------------------------------------------------
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void CIdqRegParams::_ReadAndOverrideValues( CRegAccess & reg )
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{
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CIdqRegVars newVals;
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newVals._maxISRowsInResultSet = reg.Read(wcsISMaxRecordsInResultSet, _maxISRowsInResultSet );
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newVals._maxISQueryCache = reg.Read(wcsISMaxEntriesInQueryCache, _maxISQueryCache );
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newVals._ISFirstRowsInResultSet = reg.Read(wcsISFirstRowsInResultSet, _ISFirstRowsInResultSet );
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newVals._ISCachePurgeInterval = reg.Read(wcsISQueryCachePurgeInterval, _ISCachePurgeInterval );
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newVals._ISRequestQueueSize = reg.Read(wcsISRequestQueueSize, _ISRequestQueueSize );
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newVals._ISRequestThresholdFactor = reg.Read(wcsISRequestThresholdFactor, _ISRequestThresholdFactor );
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newVals._ISDateTimeFormatting = reg.Read(wcsISDateTimeFormatting, _ISDateTimeFormatting );
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newVals._ISDateTimeLocal = reg.Read(wcsISDateTimeLocal, _ISDateTimeLocal );
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newVals._maxActiveQueryThreads = reg.Read(wcsMaxActiveQueryThreads, _maxActiveQueryThreads );
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wcscpy( newVals._awcISDefaultCatalog, _awcISDefaultCatalog );
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_StoreNewValues( newVals );
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} //_ReadAndOverrideValues
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//+-------------------------------------------------------------------------
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//
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// Member: CIdqRegParams::_ReadValues, private
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//
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// Synopsis: Reads values for variables
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//
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// History: 12-Oct-96 dlee Added header
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//
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//--------------------------------------------------------------------------
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void CIdqRegParams::_ReadValues(
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CRegAccess & reg,
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CIdqRegVars & vars )
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{
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vars._maxISRowsInResultSet = reg.Read(wcsISMaxRecordsInResultSet, IS_MAX_ROWS_IN_RESULT_DEFAULT);
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vars._maxISQueryCache = reg.Read(wcsISMaxEntriesInQueryCache, IS_MAX_ENTRIES_IN_CACHE_DEFAULT);
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vars._ISFirstRowsInResultSet = reg.Read(wcsISFirstRowsInResultSet, IS_FIRST_ROWS_IN_RESULT_DEFAULT);
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vars._ISCachePurgeInterval = reg.Read(wcsISQueryCachePurgeInterval, IS_QUERY_CACHE_PURGE_INTERVAL_DEFAULT);
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vars._ISRequestQueueSize = reg.Read(wcsISRequestQueueSize, IS_QUERY_REQUEST_QUEUE_SIZE_DEFAULT);
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vars._ISRequestThresholdFactor = reg.Read(wcsISRequestThresholdFactor, IS_QUERY_REQUEST_THRESHOLD_FACTOR_DEFAULT);
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vars._ISDateTimeFormatting = reg.Read(wcsISDateTimeFormatting, IS_QUERY_DATETIME_FORMATTING_DEFAULT);
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vars._ISDateTimeLocal = reg.Read(wcsISDateTimeLocal, IS_QUERY_DATETIME_LOCAL_DEFAULT);
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vars._maxActiveQueryThreads = reg.Read(wcsMaxActiveQueryThreads, CI_MAX_ACTIVE_QUERY_THREADS_DEFAULT);
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XPtrST<WCHAR> xwszISDefaultCatalog( reg.Read(wcsISDefaultCatalogDirectory, IS_DEFAULT_CATALOG_DIRECTORY) );
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wcsncpy( vars._awcISDefaultCatalog, xwszISDefaultCatalog.GetPointer(), MAX_PATH );
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} //_ReadValues
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//+-------------------------------------------------------------------------
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//
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// Member: CIdqRegVars::_StoreNewValues, private
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//
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// Synopsis: Transfers range-checked values
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//
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// History: 12-Oct-96 dlee Added header
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//
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//--------------------------------------------------------------------------
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void CIdqRegParams::_StoreNewValues(CIdqRegVars & vars )
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{
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InterlockedExchange( (long *) &_maxISRowsInResultSet, Range( vars._maxISRowsInResultSet, IS_MAX_ROWS_IN_RESULT_MIN, IS_MAX_ROWS_IN_RESULT_MAX ) );
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InterlockedExchange( (long *) &_maxISQueryCache, Range( vars._maxISQueryCache, IS_MAX_ENTRIES_IN_CACHE_MIN, IS_MAX_ENTRIES_IN_CACHE_MAX ) );
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InterlockedExchange( (long *) &_ISFirstRowsInResultSet, Range( vars._ISFirstRowsInResultSet, IS_FIRST_ROWS_IN_RESULT_MIN, IS_FIRST_ROWS_IN_RESULT_MAX ) );
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InterlockedExchange( (long *) &_ISCachePurgeInterval, Range( vars._ISCachePurgeInterval, IS_QUERY_CACHE_PURGE_INTERVAL_MIN, IS_QUERY_CACHE_PURGE_INTERVAL_MAX ) );
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InterlockedExchange( (long *) &_ISRequestQueueSize, Range( vars._ISRequestQueueSize, IS_QUERY_REQUEST_QUEUE_SIZE_MIN, IS_QUERY_REQUEST_QUEUE_SIZE_MAX ) );
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InterlockedExchange( (long *) &_ISRequestThresholdFactor, Range( vars._ISRequestThresholdFactor, IS_QUERY_REQUEST_THRESHOLD_FACTOR_MIN, IS_QUERY_REQUEST_THRESHOLD_FACTOR_MAX ) );
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InterlockedExchange( (long *) &_ISDateTimeFormatting, Range( vars._ISDateTimeFormatting, IS_QUERY_DATETIME_FORMATTING_MIN, IS_QUERY_DATETIME_FORMATTING_MAX ) );
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InterlockedExchange( (long *) &_ISDateTimeLocal, vars._ISDateTimeLocal );
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InterlockedExchange( (long *) &_maxActiveQueryThreads, Range( vars._maxActiveQueryThreads, CI_MAX_ACTIVE_QUERY_THREADS_MIN, CI_MAX_ACTIVE_QUERY_THREADS_MAX ) );
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wcscpy( _awcISDefaultCatalog, vars._awcISDefaultCatalog );
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} //_StoreNewValues
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//+-------------------------------------------------------------------------
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//
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// Member: CIdqRegParams::Refresh, public
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//
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// Synopsis: Reads the values from the registry
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//
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// History: 12-Oct-96 dlee Added header, reorganized
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//
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//--------------------------------------------------------------------------
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void CIdqRegParams::Refresh(
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BOOL fUseDefaultsOnFailure )
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{
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// Grab the lock so no other writers try to update at the same time
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CIdqRegVars newVals;
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CLock lock( _mutex );
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TRY
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{
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// Query the registry.
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CRegAccess regAdmin( RTL_REGISTRY_CONTROL, wcsRegAdmin );
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_ReadValues( regAdmin, newVals );
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_StoreNewValues( newVals );
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}
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CATCH (CException, e)
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{
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// Only store defaults when told to do so -- the params
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// are still in good shape at this point and are more
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// accurate than the default settings.
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if ( fUseDefaultsOnFailure )
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{
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newVals.SetDefault();
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_StoreNewValues( newVals );
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}
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}
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END_CATCH
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} //Refresh
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