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916 lines
26 KiB
916 lines
26 KiB
5 years ago
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================
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#include "stdafx.h"
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//#include "sqlaccess.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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namespace GCSDK
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{
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// Memory pool for CRecordInfo
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CThreadSafeClassMemoryPool<CRecordInfo> CRecordInfo::sm_MemPoolRecordInfo( 10, UTLMEMORYPOOL_GROW_FAST );
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#ifdef _DEBUG
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// validation tracking
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CUtlRBTree<CRecordInfo *, int > CRecordInfo::sm_mapPMemPoolRecordInfo( DefLessFunc( CRecordInfo *) );
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CThreadMutex CRecordInfo::sm_mutexMemPoolRecordInfo;
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#endif
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//-----------------------------------------------------------------------------
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// determine if this fieldset is equal to the other one
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//-----------------------------------------------------------------------------
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/* static */
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bool FieldSet_t::CompareFieldSets( const FieldSet_t& refThis, CRecordInfo* pRecordInfoThis,
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const FieldSet_t& refOther, CRecordInfo* pRecordInfoOther )
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{
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// same number of columns?
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int cColumns = refThis.GetCount();
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if ( refOther.GetCount() != cColumns )
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return false;
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int cIncludedColumns = refThis.GetIncludedCount();
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if ( refOther.GetIncludedCount() != cIncludedColumns )
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return false;
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// do the regular columns first; this is order-dependent
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for ( int m = 0; m < cColumns; m++ )
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{
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int nThisField = refThis.GetField( m );
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const CColumnInfo& refThisColumn = pRecordInfoThis->GetColumnInfo( nThisField );
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int nOtherField = refOther.GetField( m );
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const CColumnInfo& refOtherColumn = pRecordInfoOther->GetColumnInfo( nOtherField );
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if ( refOtherColumn != refThisColumn )
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{
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return false;
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}
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}
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// do the included columns now; order independent
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for ( int m = 0; m < cIncludedColumns; m++ )
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{
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int nThisField = refThis.GetIncludedField( m );
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const CColumnInfo& refThisColumn = pRecordInfoThis->GetColumnInfo( nThisField );
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bool bFoundMatch = false;
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for ( int n = 0; n < cIncludedColumns; n++ )
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{
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int nOtherField = refOther.GetIncludedField( n );
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const CColumnInfo& refOtherColumn = pRecordInfoOther->GetColumnInfo( nOtherField );
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if ( refOtherColumn == refThisColumn )
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{
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bFoundMatch = true;
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break;
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}
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}
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if ( !bFoundMatch )
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return false;
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}
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return true;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Constructor
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//-----------------------------------------------------------------------------
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CRecordInfo::CRecordInfo()
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: m_MapIColumnInfo( 0, 0, CaselessStringLessThan )
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{
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m_rgchName[0] = 0;
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m_bPreparedForUse = false;
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m_bAllColumnsAdded = false;
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m_bHaveChecksum = false;
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m_bHaveColumnNameIndex = false;
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m_nHasPrimaryKey = k_EPrimaryKeyTypeNone;
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m_iPKIndex = -1;
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m_cubFixedSize = 0;
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m_nChecksum = 0;
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m_eSchemaCatalog = k_ESchemaCatalogInvalid;
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m_nTableID = 0;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Initializes this record info from DS equivalent information
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//-----------------------------------------------------------------------------
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void CRecordInfo::InitFromDSSchema( CSchema *pSchema )
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{
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// copy the name over
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SetName( pSchema->GetPchName() );
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// copy each of the fields, preallocating capacity
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int cFields = pSchema->GetCField();
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m_VecColumnInfo.EnsureCapacity( cFields );
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for ( int iField = 0; iField < cFields; iField++ )
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{
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Field_t &field = pSchema->GetField( iField );
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AddColumn( field.m_rgchSQLName, iField+1, field.m_EType, field.m_cubLength, field.m_nColFlags, field.m_cchMaxLength );
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}
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m_nTableID = pSchema->GetITable();
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// copy the list of PK index fields
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m_iPKIndex = pSchema->GetPKIndex( );
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// copy the list of Indexes
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m_VecIndexes = pSchema->GetIndexes( );
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// which schema?
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m_eSchemaCatalog = pSchema->GetESchemaCatalog();
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// copy full-text column list
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// and the index of the catalog it will create on
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m_vecFTSFields = pSchema->GetFTSColumns();
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m_nFullTextCatalogIndex = pSchema->GetFTSIndexCatalog();
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// Copy over the FK data
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int cFKs = pSchema->GetFKCount();
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for ( int i = 0; i < cFKs; ++i )
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{
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FKData_t &fkData = pSchema->GetFKData( i );
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AddFK( fkData );
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}
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// prepare for use
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PrepareForUse( );
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}
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//-----------------------------------------------------------------------------
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// Purpose: Adds a new column to this record info
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// Input: pchName - column name
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// nSQLColumn - column index in SQL to bind to (1-based)
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// eType - data type of column
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// cubFixedSize - for fixed-size fields, the size
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// nColFlags - attributes
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//-----------------------------------------------------------------------------
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void CRecordInfo::AddColumn( const char *pchName, int nSQLColumn, EGCSQLType eType, int cubFixedSize, int nColFlags, int cchMaxSize )
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{
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Assert( !m_bPreparedForUse );
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if ( m_bPreparedForUse )
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return;
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uint32 unColumn = m_VecColumnInfo.AddToTail();
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CColumnInfo &columnInfo = m_VecColumnInfo[unColumn];
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columnInfo.Set( pchName, nSQLColumn, eType, cubFixedSize, nColFlags, cchMaxSize );
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}
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//-----------------------------------------------------------------------------
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// Purpose: Adds a new FK to this record info
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//-----------------------------------------------------------------------------
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void CRecordInfo::AddFK( const FKData_t &fkData )
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{
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m_VecFKData.AddToTail( fkData );
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}
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//-----------------------------------------------------------------------------
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// Purpose: compare function to sort by column name
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//-----------------------------------------------------------------------------
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int __cdecl CompareColumnInfo( const CColumnInfo *pColumnInfoLeft, const CColumnInfo *pColumnInfoRight )
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{
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const char *pchLeft = ( (CColumnInfo *) pColumnInfoLeft )->GetName();
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const char *pchRight = ( (CColumnInfo *) pColumnInfoRight )->GetName();
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Assert( pchLeft && pchLeft[0] );
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Assert( pchRight && pchRight[0] );
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return Q_stricmp( pchLeft, pchRight );
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}
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//-----------------------------------------------------------------------------
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// Purpose: compares this record info to another record info
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//-----------------------------------------------------------------------------
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bool CRecordInfo::EqualTo( CRecordInfo* pOther )
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{
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int nOurs = GetChecksum();
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int nTheirs = pOther->GetChecksum();
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// if this much isn't equal, we're no good
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if (nOurs != nTheirs)
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return false;
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if ( !CompareIndexLists( pOther ) )
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return false;
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if ( !CompareFKs( pOther ) )
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return false;
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return CompareFTSIndexLists( pOther );
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}
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//-----------------------------------------------------------------------------
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// Purpose: format the index list into a string
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//-----------------------------------------------------------------------------
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void CRecordInfo::GetIndexFieldList( CFmtStr1024 *pstr, int nIndents ) const
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{
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// table name at first
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pstr->sprintf( "Table %s:\n", this->GetName() );
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// for each of the indexes ...
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for ( int n = 0; n < m_VecIndexes.Count(); n++ )
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{
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const FieldSet_t& fs = m_VecIndexes[n];
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// indent enough
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for ( int x = 0; x < nIndents; x++ )
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{
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pstr->Append( "\t" );
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}
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// show if it is clustered or not
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pstr->AppendFormat( "Index %d (%s): %sclustered, %sunique {", n,
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fs.GetIndexName(),
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fs.IsClustered() ? "" : "non-",
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fs.IsUnique() ? "" : "non-" );
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// then show all the columns
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for (int m = 0; m < fs.GetCount(); m++ )
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{
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int x = fs.GetField( m );
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const char* pstrName = m_VecColumnInfo[x].GetName();
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pstr->AppendFormat( "%s %s", ( m == 0 ) ? "" : ",", pstrName );
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}
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// then the included columns, too
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for ( int m = 0; m < fs.GetIncludedCount(); m++ )
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{
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int x = fs.GetIncludedField( m );
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const char* pstrName = m_VecColumnInfo[x].GetName();
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pstr->AppendFormat( ", *%s", pstrName );
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}
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pstr->Append( " }\n" );
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}
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return;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Get the number of foreign key constraints defined for the table
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//-----------------------------------------------------------------------------
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int CRecordInfo::GetFKCount()
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{
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return m_VecFKData.Count();
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}
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//-----------------------------------------------------------------------------
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// Purpose: Get data for a foreign key by index (valid for 0...GetFKCount()-1)
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//-----------------------------------------------------------------------------
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FKData_t &CRecordInfo::GetFKData( int iIndex )
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{
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return m_VecFKData[iIndex];
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}
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//-----------------------------------------------------------------------------
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// Purpose: format the FK list into a string
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//-----------------------------------------------------------------------------
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void CRecordInfo::GetFKListString( CFmtStr1024 *pstr, int nIndents )
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{
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// table name at first
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pstr->sprintf( "Table %s Foreign Keys: \n", this->GetName() );
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if ( m_VecFKData.Count() == 0 )
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{
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// indent enough
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pstr->AppendIndent( nIndents );
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pstr->Append( "No foreign keys for table\n" );
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}
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else
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{
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for ( int n = 0; n < m_VecFKData.Count(); n++ )
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{
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// indent enough
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pstr->AppendIndent( nIndents );
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FKData_t &fkData = m_VecFKData[n];
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CFmtStr sColumns, sParentColumns;
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FOR_EACH_VEC( fkData.m_VecColumnRelations, i )
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{
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FKColumnRelation_t &colRelation = fkData.m_VecColumnRelations[i];
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if ( i > 0)
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{
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sColumns += ",";
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sParentColumns += ",";
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}
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sColumns += colRelation.m_rgchCol;
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sParentColumns += colRelation.m_rgchParentCol;
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}
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pstr->AppendFormat( "CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s(%s) ON DELETE %s ON UPDATE %s\n",
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fkData.m_rgchName, sColumns.Access(), fkData.m_rgchParentTableName, sParentColumns.Access(),
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PchNameFromEForeignKeyAction( fkData.m_eOnDeleteAction ), PchNameFromEForeignKeyAction( fkData.m_eOnUpdateAction ) );
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}
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}
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return;
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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void CRecordInfo::AddFTSFields( CUtlVector< int > &vecFields )
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{
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AssertMsg( m_vecFTSFields.Count() == 0, "Only one FTS index per table" );
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FOR_EACH_VEC( vecFields, n )
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{
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int nField = vecFields[n];
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m_vecFTSFields.AddToTail( nField );
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}
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return;
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}
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//-----------------------------------------------------------------------------
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// Purpose: compares FK lists in this record with those of another
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//-----------------------------------------------------------------------------
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bool CRecordInfo::CompareFKs( CRecordInfo *pOther )
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{
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if ( pOther->m_VecFKData.Count() != m_VecFKData.Count() )
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return false;
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for( int i=0; i < m_VecFKData.Count(); ++i )
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{
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FKData_t &fkDataMine = m_VecFKData[i];
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bool bFoundInOther = false;
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for ( int j=0; j < pOther->m_VecFKData.Count(); ++j )
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{
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FKData_t &fkDataOther = pOther->m_VecFKData[j];
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if ( fkDataMine == fkDataOther )
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{
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bFoundInOther = true;
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break;
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}
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}
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if ( !bFoundInOther )
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return false;
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}
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return true;
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}
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||
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||
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//-----------------------------------------------------------------------------
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||
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// Purpose: Locate an index by its properties (ignoring the name).
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||
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// Returns position of index in the index array, or -1 if not found.
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||
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//-----------------------------------------------------------------------------
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||
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int CRecordInfo::FindIndex( CRecordInfo *pRec, const FieldSet_t& fieldSet )
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||
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{
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||
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for ( int i = 0; i < m_VecIndexes.Count(); i++ )
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||
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{
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||
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if ( FieldSet_t::CompareFieldSets( m_VecIndexes[i], this, fieldSet, pRec ) )
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||
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return i;
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||
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}
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||
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// Not found
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||
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|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Locate an index with the given name.
|
||
|
|
// Returns position of index in the index array, or -1 if not found.
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
int CRecordInfo::FindIndexByName( const char *pszName ) const
|
||
|
|
{
|
||
|
|
for ( int i = 0; i < m_VecIndexes.Count(); i++ )
|
||
|
|
{
|
||
|
|
if ( V_stricmp( m_VecIndexes[i].GetIndexName(), pszName )== 0 )
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Not found
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: compares index lists in this record with those of another
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
bool CRecordInfo::CompareIndexLists( CRecordInfo* pOther )
|
||
|
|
{
|
||
|
|
// compare the index lists (but don't use CRCs)
|
||
|
|
|
||
|
|
// different size? can't be the same
|
||
|
|
if ( pOther->GetIndexFieldCount() != GetIndexFieldCount() )
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// We have to loop through both lists of indexes and try to find a match.
|
||
|
|
// We also must make sure the match is exact, and that no previous match
|
||
|
|
// can alias another attempt at a match. Pretty messy, but with no available
|
||
|
|
// identity over index objects, we're forced to a suboptimal solution.
|
||
|
|
|
||
|
|
int nIndexes = GetIndexFieldCount();
|
||
|
|
|
||
|
|
// get a copy of the other index vector, which we'll remove items from as
|
||
|
|
// matches are found.
|
||
|
|
|
||
|
|
CUtlVector<FieldSet_t> vecOtherIndexes;
|
||
|
|
vecOtherIndexes.CopyArray( pOther->GetIndexFields().Base(), nIndexes );
|
||
|
|
|
||
|
|
for ( int nOurs = 0; nOurs < nIndexes; nOurs++ )
|
||
|
|
{
|
||
|
|
int nOtherMatchIndex = -1;
|
||
|
|
const FieldSet_t& refOurs = GetIndexFields()[nOurs];
|
||
|
|
|
||
|
|
// rip through copy of other to find one that matches
|
||
|
|
for ( int nOther = 0; nOther < vecOtherIndexes.Count(); nOther++ )
|
||
|
|
{
|
||
|
|
const FieldSet_t& refOther = vecOtherIndexes[nOther];
|
||
|
|
if ( FieldSet_t::CompareFieldSets( refOurs, this, refOther, pOther ) )
|
||
|
|
{
|
||
|
|
nOtherMatchIndex = nOther;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( nOtherMatchIndex >= 0 )
|
||
|
|
{
|
||
|
|
// this works! remove it from other copy
|
||
|
|
vecOtherIndexes.Remove( nOtherMatchIndex );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// something didn't match, so bail out early
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: compares full-text indexes for this record with those of another
|
||
|
|
// column order in an FTS is irrelevant, so this is a simple match
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
bool CRecordInfo::CompareFTSIndexLists( CRecordInfo* pOther ) const
|
||
|
|
{
|
||
|
|
// compare full-text index columns
|
||
|
|
if ( m_vecFTSFields.Count() != pOther->m_vecFTSFields.Count() )
|
||
|
|
{
|
||
|
|
// counts don't match, so obviously no good
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
for ( int nColumnIndex = 0; nColumnIndex < m_vecFTSFields.Count(); nColumnIndex++ )
|
||
|
|
{
|
||
|
|
bool bFound = false;
|
||
|
|
for ( int nInnerIndex = 0; nInnerIndex < pOther->m_vecFTSFields.Count(); nInnerIndex++ )
|
||
|
|
{
|
||
|
|
if ( m_vecFTSFields[nInnerIndex] == pOther->m_vecFTSFields[nColumnIndex] )
|
||
|
|
{
|
||
|
|
bFound = true;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !bFound )
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Returns the checksum for this record info
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
int CRecordInfo::GetChecksum()
|
||
|
|
{
|
||
|
|
Assert( m_bPreparedForUse );
|
||
|
|
|
||
|
|
// calculate it now if we haven't already
|
||
|
|
if ( !m_bHaveChecksum )
|
||
|
|
CalculateChecksum();
|
||
|
|
|
||
|
|
return m_nChecksum;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Prepares this object for use after all columns have been added
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
void CRecordInfo::PrepareForUse()
|
||
|
|
{
|
||
|
|
Assert( !m_bPreparedForUse );
|
||
|
|
Assert( 0 == m_cubFixedSize );
|
||
|
|
Assert( 0 == m_nChecksum );
|
||
|
|
|
||
|
|
SetAllColumnsAdded();
|
||
|
|
|
||
|
|
FOR_EACH_VEC( m_VecColumnInfo, nColumn )
|
||
|
|
{
|
||
|
|
CColumnInfo &columnInfo = m_VecColumnInfo[nColumn];
|
||
|
|
|
||
|
|
// keep track of total fixed size of all columns
|
||
|
|
if ( !columnInfo.BIsVariableLength() )
|
||
|
|
m_cubFixedSize += columnInfo.GetFixedSize();
|
||
|
|
|
||
|
|
if ( columnInfo.BIsPrimaryKey() )
|
||
|
|
{
|
||
|
|
// a PK column! if we have seen one before,
|
||
|
|
// know we have a-column PK; otherwise, a single column PK
|
||
|
|
if (m_nHasPrimaryKey == k_EPrimaryKeyTypeNone)
|
||
|
|
m_nHasPrimaryKey = k_EPrimaryKeyTypeSingle;
|
||
|
|
else
|
||
|
|
m_nHasPrimaryKey = k_EPrimaryKeyTypeMulti;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// make sure count matches the enum
|
||
|
|
/*
|
||
|
|
Assert( ( m_nHasPrimaryKey == k_EPrimaryKeyTypeNone && m_VecPKFields.Count() == 0 ) ||
|
||
|
|
( m_nHasPrimaryKey == k_EPrimaryKeyTypeMulti && m_VecPKFields.Count() > 1) ||
|
||
|
|
( m_nHasPrimaryKey == k_EPrimaryKeyTypeSingle && m_VecPKFields.Count() == 1) );
|
||
|
|
*/
|
||
|
|
|
||
|
|
m_bPreparedForUse = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Returns index of column with specified name
|
||
|
|
// Input: pchName - column name
|
||
|
|
// punColumn - pointer to fill in with index
|
||
|
|
// Output: return true if found, false otherwise
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
bool CRecordInfo::BFindColumnByName( const char *pchName, int *punColumn )
|
||
|
|
{
|
||
|
|
Assert( m_bAllColumnsAdded );
|
||
|
|
Assert( pchName && *pchName );
|
||
|
|
Assert( punColumn );
|
||
|
|
|
||
|
|
*punColumn = -1;
|
||
|
|
|
||
|
|
// if we haven't already built the name index, build it now
|
||
|
|
if ( !m_bHaveColumnNameIndex )
|
||
|
|
BuildColumnNameIndex();
|
||
|
|
|
||
|
|
*punColumn = m_MapIColumnInfo.Find( pchName );
|
||
|
|
return ( m_MapIColumnInfo.InvalidIndex() != *punColumn );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Sets the name of this record info
|
||
|
|
// Input: pchName - name
|
||
|
|
// Notes: record info that describes a table will have a name (the table name);
|
||
|
|
// record info that describes a result set will not
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
void CRecordInfo::SetName( const char *pchName )
|
||
|
|
{
|
||
|
|
Assert( pchName && *pchName );
|
||
|
|
Assert( !m_bPreparedForUse ); // don't change this after prepared for use
|
||
|
|
Q_strncpy( m_rgchName, pchName, Q_ARRAYSIZE( m_rgchName ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Builds the column name index for fast lookup by name
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
void CRecordInfo::BuildColumnNameIndex()
|
||
|
|
{
|
||
|
|
AUTO_LOCK( m_Mutex );
|
||
|
|
|
||
|
|
if ( m_bHaveColumnNameIndex )
|
||
|
|
return;
|
||
|
|
|
||
|
|
Assert( m_bAllColumnsAdded );
|
||
|
|
|
||
|
|
Assert( 0 == m_MapIColumnInfo.Count() );
|
||
|
|
|
||
|
|
FOR_EACH_VEC( m_VecColumnInfo, nColumn )
|
||
|
|
{
|
||
|
|
// build name->column index map
|
||
|
|
CColumnInfo &columnInfo = m_VecColumnInfo[nColumn];
|
||
|
|
m_MapIColumnInfo.Insert( columnInfo.GetName(), nColumn );
|
||
|
|
}
|
||
|
|
m_bHaveColumnNameIndex = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Calculates the checksum for this record info
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
void CRecordInfo::CalculateChecksum()
|
||
|
|
{
|
||
|
|
AUTO_LOCK( m_Mutex );
|
||
|
|
|
||
|
|
if ( m_bHaveChecksum )
|
||
|
|
return;
|
||
|
|
|
||
|
|
// build the column name index if necessary
|
||
|
|
if ( !m_bHaveColumnNameIndex )
|
||
|
|
BuildColumnNameIndex();
|
||
|
|
|
||
|
|
CRC32_t crc32;
|
||
|
|
CRC32_Init( &crc32 );
|
||
|
|
|
||
|
|
FOR_EACH_MAP( m_MapIColumnInfo, iMapItem )
|
||
|
|
{
|
||
|
|
uint32 unColumn = m_MapIColumnInfo[iMapItem];
|
||
|
|
CColumnInfo &columnInfo = m_VecColumnInfo[unColumn];
|
||
|
|
// calculate checksum of all of our columns
|
||
|
|
columnInfo.CalculateChecksum();
|
||
|
|
int nChecksum = columnInfo.GetChecksum();
|
||
|
|
CRC32_ProcessBuffer( &crc32, (void*) &nChecksum, sizeof( nChecksum ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
// keep checksum for entire record info
|
||
|
|
CRC32_Final( &crc32 );
|
||
|
|
m_nChecksum = crc32;
|
||
|
|
m_bHaveChecksum = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: add another index disallowing duplicates. If a duplicate item is
|
||
|
|
// found, we'll set the flags on the new item from the existing one.
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
int CRecordInfo::AddIndex( const FieldSet_t& fieldSet )
|
||
|
|
{
|
||
|
|
for ( int n = 0; n < m_VecIndexes.Count(); n++ )
|
||
|
|
{
|
||
|
|
FieldSet_t& fs = m_VecIndexes[n];
|
||
|
|
if ( FieldSet_t::CompareFieldSets( fieldSet, this, fs, this ) )
|
||
|
|
{
|
||
|
|
fs.SetClustered( fs.IsClustered() );
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int nRet = m_VecIndexes.AddToTail( fieldSet );
|
||
|
|
return nRet;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Returns true if there is an IDENTITY column in the record info
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
bool CRecordInfo::BHasIdentity() const
|
||
|
|
{
|
||
|
|
FOR_EACH_VEC( m_VecColumnInfo, nColumn)
|
||
|
|
{
|
||
|
|
if( m_VecColumnInfo[nColumn].BIsAutoIncrement() )
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Constructor
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
CColumnInfo::CColumnInfo()
|
||
|
|
{
|
||
|
|
m_rgchName[0] = 0;
|
||
|
|
m_nSQLColumn = 0;
|
||
|
|
m_eType = k_EGCSQLTypeInvalid;
|
||
|
|
m_nColFlags = 0;
|
||
|
|
m_cubFixedSize = 0;
|
||
|
|
m_cchMaxSize = 0;
|
||
|
|
m_nChecksum = 0;
|
||
|
|
m_bHaveChecksum = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Sets column info for this column
|
||
|
|
// Input: pchName - column name
|
||
|
|
// nSQLColumn - column index in SQL to bind to (1-based)
|
||
|
|
// eType - data type of column
|
||
|
|
// cubFixedSize - for fixed-size fields, the size
|
||
|
|
// nColFlags - attributes
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
void CColumnInfo::Set( const char *pchName, int nSQLColumn, EGCSQLType eType, int cubFixedSize, int nColFlags, int cchMaxSize )
|
||
|
|
{
|
||
|
|
Assert( !m_rgchName[0] );
|
||
|
|
Q_strncpy( m_rgchName, pchName, Q_ARRAYSIZE( m_rgchName ) );
|
||
|
|
m_nSQLColumn = nSQLColumn;
|
||
|
|
m_eType = eType;
|
||
|
|
|
||
|
|
m_nColFlags = nColFlags;
|
||
|
|
ValidateColFlags();
|
||
|
|
|
||
|
|
if ( !BIsVariableLength() )
|
||
|
|
{
|
||
|
|
Assert( cubFixedSize > 0 );
|
||
|
|
m_cubFixedSize = cubFixedSize;
|
||
|
|
m_cchMaxSize = 0;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// it's variable length, so we need a max length
|
||
|
|
m_cchMaxSize = cchMaxSize;
|
||
|
|
m_cubFixedSize = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: returns whether this column is variable length
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
bool CColumnInfo::BIsVariableLength() const
|
||
|
|
{
|
||
|
|
return m_eType == k_EGCSQLType_Blob || m_eType == k_EGCSQLType_String || m_eType == k_EGCSQLType_Image;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: convert column flags to a visible representation
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
void CColumnInfo::GetColFlagDescription( char* pstrOut, int cubOutLength ) const
|
||
|
|
{
|
||
|
|
if ( m_nColFlags == 0 )
|
||
|
|
Q_strncpy( pstrOut, "(none)", cubOutLength );
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pstrOut[0] = 0;
|
||
|
|
if ( m_nColFlags & k_nColFlagIndexed )
|
||
|
|
Q_strncat( pstrOut, "(Indexed)", cubOutLength );
|
||
|
|
if ( m_nColFlags & k_nColFlagUnique )
|
||
|
|
Q_strncat( pstrOut, "(Unique)", cubOutLength );
|
||
|
|
if ( m_nColFlags & k_nColFlagPrimaryKey )
|
||
|
|
Q_strncat( pstrOut, "(PrimaryKey)", cubOutLength );
|
||
|
|
if ( m_nColFlags & k_nColFlagAutoIncrement )
|
||
|
|
Q_strncat( pstrOut, "(AutoIncrement)", cubOutLength );
|
||
|
|
if ( m_nColFlags & k_nColFlagClustered )
|
||
|
|
Q_strncat( pstrOut, "(Clustered)", cubOutLength );
|
||
|
|
}
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: sets column flag bits
|
||
|
|
// Input: nColFlag - bits to set. (Other bits are not cleared.)
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
void CColumnInfo::SetColFlagBits( int nColFlag )
|
||
|
|
{
|
||
|
|
ValidateColFlags();
|
||
|
|
m_nColFlags |= nColFlag; // set these bits
|
||
|
|
ValidateColFlags();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Calculates the checksum for this column
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
void CColumnInfo::CalculateChecksum()
|
||
|
|
{
|
||
|
|
if ( m_bHaveChecksum )
|
||
|
|
return;
|
||
|
|
|
||
|
|
// calculate checksum of this column for easy comparsion
|
||
|
|
CRC32_t crc32;
|
||
|
|
CRC32_Init( &crc32 );
|
||
|
|
CRC32_ProcessBuffer( &crc32, (void*) m_rgchName, Q_strlen( m_rgchName ) );
|
||
|
|
CRC32_ProcessBuffer( &crc32, (void*) &m_nColFlags, sizeof( m_nColFlags ) );
|
||
|
|
CRC32_ProcessBuffer( &crc32, (void*) &m_eType, sizeof( m_eType ) );
|
||
|
|
CRC32_ProcessBuffer( &crc32, (void*) &m_cubFixedSize, sizeof( m_cubFixedSize ) );
|
||
|
|
CRC32_ProcessBuffer( &crc32, (void*) &m_cchMaxSize, sizeof( m_cchMaxSize ) );
|
||
|
|
CRC32_Final( &crc32 );
|
||
|
|
|
||
|
|
m_nChecksum = crc32;
|
||
|
|
m_bHaveChecksum = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// determine if this CColumnInfo is the same as the referenced
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
bool CColumnInfo::operator==( const CColumnInfo& refOther ) const
|
||
|
|
{
|
||
|
|
if ( m_eType != refOther.m_eType )
|
||
|
|
return false;
|
||
|
|
if ( m_cubFixedSize != refOther.m_cubFixedSize )
|
||
|
|
return false;
|
||
|
|
if ( m_cchMaxSize != refOther.m_cchMaxSize )
|
||
|
|
return false;
|
||
|
|
if ( m_nColFlags != refOther.m_nColFlags )
|
||
|
|
return false;
|
||
|
|
if ( 0 != Q_strcmp( m_rgchName, refOther.m_rgchName ) )
|
||
|
|
return false;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: Validates that column flags are set in valid combinations
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
void CColumnInfo::ValidateColFlags() const
|
||
|
|
{
|
||
|
|
// Check that column flags follow rules about how columns get expressed in SQL
|
||
|
|
|
||
|
|
if ( m_nColFlags & k_nColFlagPrimaryKey )
|
||
|
|
{
|
||
|
|
// a primary key must also be unique and indexed
|
||
|
|
Assert( m_nColFlags & k_nColFlagUnique );
|
||
|
|
Assert( m_nColFlags & k_nColFlagIndexed );
|
||
|
|
}
|
||
|
|
|
||
|
|
// a column with uniqueness constraint must also be indexed
|
||
|
|
if ( m_nColFlags & k_nColFlagUnique )
|
||
|
|
Assert( m_nColFlags & k_nColFlagIndexed );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
CRecordInfo *CRecordInfo::Alloc()
|
||
|
|
{
|
||
|
|
CRecordInfo *pRecordInfo = sm_MemPoolRecordInfo.Alloc();
|
||
|
|
|
||
|
|
#ifdef _DEBUG
|
||
|
|
AUTO_LOCK( sm_mutexMemPoolRecordInfo );
|
||
|
|
sm_mapPMemPoolRecordInfo.Insert( pRecordInfo );
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return pRecordInfo;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void CRecordInfo::DestroyThis()
|
||
|
|
{
|
||
|
|
#ifdef _DEBUG
|
||
|
|
AUTO_LOCK( sm_mutexMemPoolRecordInfo );
|
||
|
|
sm_mapPMemPoolRecordInfo.Remove( this );
|
||
|
|
#endif
|
||
|
|
|
||
|
|
sm_MemPoolRecordInfo.Free( this );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef DBGFLAG_VALIDATE
|
||
|
|
|
||
|
|
|
||
|
|
void CRecordInfo::ValidateStatics( CValidator &validator, const char *pchName )
|
||
|
|
{
|
||
|
|
VALIDATE_SCOPE_STATIC( "CRecordInfo class statics" );
|
||
|
|
|
||
|
|
ValidateObj( sm_MemPoolRecordInfo );
|
||
|
|
|
||
|
|
#ifdef _DEBUG
|
||
|
|
AUTO_LOCK( sm_mutexMemPoolRecordInfo );
|
||
|
|
ValidateObj( sm_mapPMemPoolRecordInfo );
|
||
|
|
FOR_EACH_MAP_FAST( sm_mapPMemPoolRecordInfo, i )
|
||
|
|
{
|
||
|
|
sm_mapPMemPoolRecordInfo[i]->Validate( validator, "sm_mapPMemPoolRecordInfo[i]" );
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void CRecordInfo::Validate( CValidator &validator, const char *pchName )
|
||
|
|
{
|
||
|
|
VALIDATE_SCOPE();
|
||
|
|
|
||
|
|
m_VecIndexes.Validate( validator, "m_VecIndexes" );
|
||
|
|
|
||
|
|
ValidateObj( m_VecFKData );
|
||
|
|
FOR_EACH_VEC( m_VecFKData, i )
|
||
|
|
{
|
||
|
|
ValidateObj( m_VecFKData[i] );
|
||
|
|
}
|
||
|
|
|
||
|
|
for ( int iIndex = 0; iIndex < m_VecIndexes.Count(); iIndex++ )
|
||
|
|
{
|
||
|
|
ValidateObj( m_VecIndexes[iIndex] );
|
||
|
|
}
|
||
|
|
ValidateObj( m_vecFTSFields );
|
||
|
|
|
||
|
|
ValidateObj( m_VecColumnInfo );
|
||
|
|
FOR_EACH_VEC( m_VecColumnInfo, nColumn )
|
||
|
|
{
|
||
|
|
CColumnInfo &columnInfo = GetColumnInfo( nColumn );
|
||
|
|
ValidateObj( columnInfo );
|
||
|
|
}
|
||
|
|
ValidateObj( m_MapIColumnInfo );
|
||
|
|
}
|
||
|
|
|
||
|
|
void CColumnInfo::Validate( CValidator &validator, const char *pchName )
|
||
|
|
{
|
||
|
|
VALIDATE_SCOPE();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // DBGFLAG_VALIDATE
|
||
|
|
|
||
|
|
} // namespace GCSDK
|