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Diffstat (limited to 'xbase64/xbindex.cpp')
| -rwxr-xr-x | xbase64/xbindex.cpp | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/xbase64/xbindex.cpp b/xbase64/xbindex.cpp deleted file mode 100755 index f3a9c17..0000000 --- a/xbase64/xbindex.cpp +++ /dev/null @@ -1,220 +0,0 @@ -/* xbindex.cpp - - Xbase64 project source code - - This file contains the implementation of the xbIndex class. - - Copyright (C) 1997,2003 Gary A Kunkel - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - - - Contact: - - Email: - - xdb-devel@lists.sourceforge.net - xdb-users@lists.sourceforge.net - - - Regular Mail: - - XBase Support - 149C South Main St - Keller Texas, 76248 - USA -*/ - -#ifdef __GNU LesserG__ - #pragma implementation "xbindex.h" -#endif - -#ifdef __WIN32__ -#include <xbase64/xbwincfg.h> -#else -#include <xbase64/xbconfig.h> -#endif - -#include <xbase64/xbase64.h> - -#include <stdio.h> -#include <stdlib.h> - -/*! \file xbindex.cpp -*/ - -#ifdef XB_INDEX_ANY -//! Constructor -/*! - \param pdbf -*/ -xbIndex::xbIndex(xbDbf * pdbf) -{ - index = this; - dbf = pdbf; -// ExpressionTree = NULL; - IxExp = NULL; - indexfp = NULL; -// IndexStatus = 0; - CurDbfRec = 0L; - KeyBuf = NULL; - KeyBuf2 = NULL; -#ifdef XB_LOCKING_ON - LockCnt = 0; - - CurLockCount = 0; - CurLockType = -1; -#endif // XB_LOCKING_ON -} - -/*************************************************************************/ - -//! Destructor -/*! - \param pdbf -*/ -xbIndex::~xbIndex() -{ - if( IxExp ){ - delete IxExp; - IxExp = NULL; - } -} -/*************************************************************************/ - -void xbIndex::Flush() -{ - if(indexfp) fflush(indexfp); -} - -/*************************************************************************/ -xbShort xbIndex::OpenIndex(const char* FileName) -{ - if (IsOpen()) return XB_ALREADY_OPEN; - - int rc; - - SetFileName(FileName); - - /* open the file */ - if(( indexfp = fopen( GetFileName(), "r+b" )) == NULL ){ - // - // Try to open read only if can't open read/write - // - if(( indexfp = fopen( GetFileName(), "rb" )) == NULL ) - return XB_OPEN_ERROR; - } - -#ifdef XB_LOCKING_ON - /* - ** Must turn off buffering when multiple programs may be accessing - ** index files. - */ - setbuf( indexfp, NULL ); -#endif - -// IndexStatus = 1; - if(( rc = GetHeadNode()) != 0){ - fclose( indexfp ); - return rc; - } - - /* parse the expression */ -/* pre 3.0 - if(( rc = dbf->xbase->BuildExpressionTree( HeadNode.KeyExpression, - strlen( HeadNode.KeyExpression ), dbf )) != XB_NO_ERROR ){ - return rc; - } - ExpressionTree = dbf->xbase->GetTree(); - dbf->xbase->SetTreeToNull(); -*/ - IxExp = new xbExpn( dbf->xbase ); - if(( rc = IxExp->BuildExpressionTree( GetKeyExpression(), - strlen( GetKeyExpression() ), dbf )) != XB_NO_ERROR ){ - fclose( indexfp ); - return rc; - } - - rc=AllocKeyBufs(); - if(rc){ -#ifdef XB_LOCKING_ON -// if( dbf->GetAutoLock() ) -// LockIndex( XB_UNLOCK ); -#endif - fclose(indexfp); - return rc; - } - -#ifdef XBASE_DEBUG -// CheckIndexIntegrity( 0 ); -#endif - -#ifdef XB_LOCKING_ON - //if( dbf->GetAutoLock() ) -// LockIndex( XB_UNLOCK ); -#endif - - rc = dbf->AddIndexToIxList( index, GetFileName() ); - return rc; -} -/*************************************************************************/ -//! Short description. -/*! -*/ -xbShort xbIndex::AllocKeyBufs() -{ - KeyBuf = (char *) malloc( GetKeyLen() + 1 ); - if(KeyBuf==NULL) { - return XB_NO_MEMORY; - }; - KeyBuf2 = (char *) malloc( GetKeyLen() + 1); - if(KeyBuf2==NULL) { - free(KeyBuf); - return XB_NO_MEMORY; - }; - memset( KeyBuf, 0x00, GetKeyLen() + 1 ); - memset( KeyBuf2, 0x00, GetKeyLen() + 1 ); - return XB_NO_ERROR; -} -/***********************************************************************/ - -xbShort xbIndex::CloseIndex( void ) -{ - if(KeyBuf){ - free(KeyBuf); - KeyBuf = NULL; - } - if(KeyBuf2){ - free(KeyBuf2); - KeyBuf2 = NULL; - } - - dbf->RemoveIndexFromIxList( index ); // why not 'this'? - FreeNodesMemory(); - if( IxExp ){ - delete IxExp; - IxExp = 0; - } - - if(indexfp){ - fclose( indexfp ); - indexfp = NULL; - } -// IndexStatus = 0; - return 0; -} -/***********************************************************************/ - -#endif // XB_INDEX_ANY |