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-rwxr-xr-xxbase64/xblock.cpp580
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diff --git a/xbase64/xblock.cpp b/xbase64/xblock.cpp
deleted file mode 100755
index c44cbb9..0000000
--- a/xbase64/xblock.cpp
+++ /dev/null
@@ -1,580 +0,0 @@
-/* xblock.cpp
-
- Xbase64 project source code
- written at 35000 feet on SWA
-
- This file contains the implementation of the xbLock.
-
- This file conatains a header file for the xbLock virtual objects which
- is used for controlling file and record locking. Record and file
- locking has been rewritten in version 3.
-
- 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 "xblock.h"
-#endif
-
-#ifdef __WIN32__
-#include <xbase64/xbwincfg.h>
-#else
-#include <xbase64/xbconfig.h>
-#endif
-
-#include <xbase64/xbase64.h>
-
-#ifdef HAVE_IO_H // windows locking
-#include <io.h>
-#endif
-
-#ifdef HAVE_DOS_H // _sleep
-#include <dos.h>
-#endif
-
-//#include <stdio.h>
-//#include <stdlib.h>
-
-/*! \file xblock.cpp
-*/
-#ifdef XB_LOCKING_ON
-
-//! Constructor
-/*!
- \param pdbf
-*/
-
-/*************************************************************************/
-xbLock::xbLock(xbDbf * pdbf)
-{
- dbf = pdbf;
- HdrLockCnt = 0;
- TableLockCnt = 0;
- MemoLockCnt = 0;
- IndexLockCnt = 0;
- std::cout << "xbLock constructor" << std::cout;
-}
-/*************************************************************************/
-xbLock::~xbLock()
-{
- std::cout << "xbLock destructor" << std::endl;
-}
-/*************************************************************************/
-
-//! File lock routine
-/*!
- Lowest level lock routine
- Locks/unlocks a database,memo or index file.
- This function assumes the file position has been correctly set
-
- \param fn file to lock/unlock
- \param LockType lock type, one of: XB_LOCK or XB_UNLOCK
- \param lockLen byte count to lock
-*/
-
-#ifdef __WIN32__
-xbShort xbLock::LockFile( int fn, xbShort LockType, xbOffT lockLen)
-{
- int mode;
- int rc;
- int tries = 0;
-
- /* convert the xbase locking command into a windows locking command */
- if( LockType == XB_UNLOCK )
- mode = LK_UNLCK;
- else if( LockType == XB_LOCK || LockType == XB_LOCK_HOLD )
- mode = LK_NBLCK;
- else
- return XB_INVALID_LOCK_OPTION;
-
- do{
- rc = locking( fn, mode, lockLen );
- if( rc )
- _sleep( 1 );
- } while( rc == -1 && tries < dbf->xbase->GetLockRetryCount());
-
- if( rc )
- return XB_LOCK_FAILED;
-
- return 0;
-}
-
-#elif HAVE_FCNTL_H
-
-xbShort xbLock::LockFile( int fn, xbShort LockType, xbOffT lockLen )
-{
- xbShort cmd, rc;
- xbShort tries = 0;
-
-/* convert cross platform xbase lock type to unix lock type */
- if( LockType == XB_UNLOCK )
- cmd = F_ULOCK;
-else if( LockType == XB_LOCK || LockType == XB_LOCK_HOLD )
- cmd = F_TLOCK;
- else
- return XB_INVALID_LOCK_OPTION;
-
-/* do the actual lock */
- do{
- #ifdef _LARGEFILE64_SOURCE
- rc = lockf64( fn, cmd, lockLen );
- #else
- rc = lockf( fn, cmd, lockLen );
- #endif
- if( rc == -1 && errno != EINTR ){
- tries++;
- sleep(1);
- }
- } while( rc == -1 && tries < dbf->xbase->GetLockRetryCount());
-
- if( rc )
- return XB_LOCK_FAILED;
-
- return XB_NO_ERROR;
-}
-#endif // HAVE_FCNTL
-/*************************************************************************/
-/*************************************************************************/
-xbaseLock::xbaseLock( xbDbf * pdbf ) : xbLock( pdbf )
-{
- std::cout << "xbaseLock constructor" << std::cout;
-}
-/*************************************************************************/
-xbShort xbaseLock::LockTableHeader( xbShort LockType )
-{
- if( LockType == XB_UNLOCK )
- return XB_NO_ERROR;
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-xbShort xbaseLock::LockTable( xbShort LockType )
-{
- if(( LockType == XB_LOCK || LockType == XB_LOCK_HOLD ) && TableLockCnt ){
- TableLockCnt++;
- return XB_NO_ERROR;
- }
- if( LockType == XB_UNLOCK && TableLockCnt > 1 ){
- TableLockCnt--;
- return XB_NO_ERROR;
- }
-
-#ifdef _LARGEFILE64_SOURCE
- if( lseek64( fileno( lfh ), 1, SEEK_SET ) != 1 )
- return XB_LOCK_FAILED;
-
- if( LockFile( fileno( lfh ), LockType, 4294967295LL ) != XB_NO_ERROR )
- return XB_LOCK_FAILED;
-#else
- if( lseek( fileno( lfh ), 1, SEEK_SET ) != 1 )
- return XB_LOCK_FAILED;
-
- if( LockFile( fileno( lfh ), LockType, 4294967295L ) != XB_NO_ERROR )
- return XB_LOCK_FAILED;
-#endif
-
- if( LockType == XB_UNLOCK )
- TableLockCnt--;
- else
- TableLockCnt++;
-
- return XB_NO_ERROR;
-}
-/*************************************************************************/
-xbShort xbaseLock::LockRecord(xbShort LockType,xbULong RecNo,xbOffT RecCnt)
-{
-
-#ifdef _LARGEFILE64_SOURCE
- if( lseek64( fileno( lfh ), 100L + RecNo, SEEK_SET ) == -1 ){
- return XB_LOCK_FAILED;
- }
-#else
- if( lseek( fileno( lfh ), 100L + RecNo, SEEK_SET ) == -1 ){
- return XB_LOCK_FAILED;
- }
-#endif
-
- return LockFile( fileno( lfh ), LockType, (xbOffT) RecCnt );
-}
-/*************************************************************************/
-xbShort xbaseLock::LockMemo( xbShort LockType )
-{
- xbShort rc;
-
- if(( LockType == XB_LOCK || LockType == XB_LOCK_HOLD ) && MemoLockCnt ){
- MemoLockCnt++;
- return XB_NO_ERROR;
- }
- else if ( LockType == XB_UNLOCK && MemoLockCnt > 1 ){
- MemoLockCnt--;
- return XB_NO_ERROR;
- }
-
-#ifdef _LARGEFILE64_SOURCE
- if( lseek64( fileno( lfh ), 2, SEEK_SET ) != 2 )
- return XB_LOCK_FAILED;
-#else
- if( lseek( fileno( lfh ), 2, SEEK_SET ) != 2 )
- return XB_LOCK_FAILED;
-#endif
- rc = LockFile( fileno( lfh ), LockType, 1 );
-
- if( rc == XB_NO_ERROR ){
- if( LockType == XB_UNLOCK )
- MemoLockCnt--;
- else
- MemoLockCnt++;
- }
- return rc;
-}
-/*************************************************************************/
-//! Lock Index
-/*!
- Locks all indices for a table when using lock mode XB_XBASE_LOCK_MODE
-
- \param LockType is one of XB_LOCK, XB_LOCK_HOLD or XB_UNLOCK
-*/
-
-xbShort xbaseLock::LockIndex( xbShort LockType )
-{
- xbShort rc;
-
-// if( !NdxList )
-// printf( "no index\n" );
-
- if(( LockType == XB_LOCK || LockType == XB_LOCK_HOLD ) && IndexLockCnt ){
- IndexLockCnt++;
- return XB_NO_ERROR;
- }
- if( LockType == XB_UNLOCK && IndexLockCnt > 1 ){
- IndexLockCnt--;
- return XB_NO_ERROR;
- }
-
-#ifdef _LARGEFILE64_SOURCE
- if( lseek64( fileno( lfh ), 3, SEEK_SET ) == -1 ){
- printf( "here cp1\n");
- return XB_LOCK_FAILED;
- }
-#else
- if( lseek( fileno( lfh ), 3, SEEK_SET ) == -1 ){
- printf( "here cp2\n" );
- return XB_LOCK_FAILED;
- }
-#endif
-
- rc = LockFile( fileno( lfh ), LockType, 1 );
-
- if( rc == XB_NO_ERROR )
- if( LockType == XB_UNLOCK )
- IndexLockCnt--;
- else
- IndexLockCnt++;
-
- return rc;
-}
-/*************************************************************************/
-xbShort xbaseLock::UnlockAll()
-{
- return XB_INVALID_LOCK_OPTION;
-}
-/************************************************************************/
-xbShort xbaseLock::LockInit()
-{
- xbShort len;
- xbString lfn;
-
- lfn = dbf->GetDbfName();
- lfn.resize( lfn.len() - 3 );
-
- lfn += ".lck";
-
-#ifdef _LARGEFILE_SOURCE
- if(( lfh = fopen64( lfn.getData(), "w+b" )) == NULL )
- return XB_OPEN_ERROR;
-#else
- if(( lfh = fopen( lfn.getData(), "w+b" )) == NULL )
- return XB_OPEN_ERROR;
-#endif
-
- else
- return XB_NO_ERROR;
-}
-
-/*************************************************************************/
-/*************************************************************************/
-dbaseLock::dbaseLock( xbDbf * pdbf ) : xbLock( pdbf )
-{
- std::cout << "dbaseLock constructor" << std::cout;
-}
-/*************************************************************************/
-xbShort dbaseLock::LockTableHeader( xbShort LockType )
-{
- if( LockType == XB_UNLOCK )
- return XB_NO_ERROR;
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-xbShort dbaseLock::LockTable( xbShort LockType )
-{
-
- if(( LockType == XB_LOCK || LockType == XB_LOCK_HOLD ) && TableLockCnt ){
- TableLockCnt++;
- return XB_NO_ERROR;
- }
- if( LockType == XB_UNLOCK && TableLockCnt > 1 ){
- TableLockCnt--;
- return XB_NO_ERROR;
- }
-
-#ifdef _LARGEFILE64_SOURCE
- if( lseek64( dbf->GetDbfFileNo(), 4026531838LL, SEEK_SET ))
- return XB_LOCK_FAILED;
-
- if( LockFile( dbf->GetDbfFileNo(), LockType, 1 ) != XB_NO_ERROR )
- return XB_LOCK_FAILED;
-
- if( LockType == XB_LOCK || LockType == XB_LOCK_HOLD ){
- if( LockRecord( XB_LOCK, 1, 4294967295LL ) != XB_NO_ERROR )
- return LockTable( XB_UNLOCK );
- LockRecord( XB_UNLOCK, 1, 4294967295LL );
- }
-
- if( LockType == XB_UNLOCK )
- TableLockCnt--;
- else
- TableLockCnt++;
-
- return XB_NO_ERROR;
-#else
- /* I couldn't figure out how Dbase locks a file at offset 4026531838
- for a 32 bit platform - if you know how, please let me know
-
- Gary - gkunkel@zhsac.com
-
- */
-
- return XB_INVALID_LOCK_OPTION;
-#endif
-
-}
-
-/*************************************************************************/
-xbShort dbaseLock::LockRecord( xbShort LockType, xbULong RecNo, xbOffT RecCnt )
-{
-#ifdef _LARGEFILE64_SOURCE
-
- if( lseek64( dbf->GetDbfFileNo(), 4026531838LL - (RecNo+RecCnt-1), SEEK_SET ) == -1 )
- return XB_LOCK_FAILED;
-
- return LockFile( dbf->GetDbfFileNo(), LockType, RecCnt );
-
-#else
-
- /* I couldn't figure out how dbase locks a file at offset 4026531838
- for a 32 bit platform - if you know how, please let me know
-
- Gary - gkunkel@zhsac.com
-
- */
-
- return XB_INVALID_LOCK_OPTION;
-#endif
-}
-
-/*************************************************************************/
-xbShort dbaseLock::LockMemo( xbShort LockType )
-{
-
- xbShort rc;
-
- if(( LockType == XB_LOCK || LockType == XB_LOCK_HOLD ) && MemoLockCnt ){
- MemoLockCnt++;
- return XB_NO_ERROR;
- }
- else if ( LockType == XB_UNLOCK && MemoLockCnt > 1 ){
- MemoLockCnt--;
- return XB_NO_ERROR;
- }
-
-#ifdef _LARGEFILE_SOURCE
- if( lseek64( dbf->GetMemoFileNo(), 4026531838LL, SEEK_SET ) == -1 )
- return XB_LOCK_FAILED;
- rc = LockFile( dbf->GetMemoFileNo(), LockType, 1 );
-#else
- rc = XB_INVALID_OPTION;
-#endif
-
- if( rc == XB_NO_ERROR ){
- if( LockType == XB_UNLOCK )
- MemoLockCnt--;
- else
- MemoLockCnt++;
- }
- return rc;
-}
-/*************************************************************************/
-xbShort dbaseLock::LockIndex( xbShort LockType )
-{
- if( LockType == XB_NO_ERROR )
- return XB_NO_ERROR;
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-xbShort dbaseLock::UnlockAll()
-{
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-/*************************************************************************/
-clipperLock::clipperLock( xbDbf * pdbf ) : xbLock( pdbf )
-{
- std::cout << "clipperLock constructor" << std::cout;
-}
-/*************************************************************************/
-xbShort clipperLock::LockTableHeader( xbShort LockType )
-{
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-xbShort clipperLock::LockTable( xbShort LockType )
-{
- if(( LockType == XB_LOCK || LockType == XB_LOCK_HOLD ) && TableLockCnt ){
- TableLockCnt++;
- return XB_NO_ERROR;
- }
- if( LockType == XB_UNLOCK && TableLockCnt > 1 ){
- TableLockCnt--;
- return XB_NO_ERROR;
- }
-
- if( LockRecord( LockType, 1L, 1000000000L ) != XB_NO_ERROR )
- return XB_LOCK_FAILED;
-
- if( LockType == XB_UNLOCK )
- TableLockCnt--;
- else
- TableLockCnt++;
-
- return XB_NO_ERROR;
-}
-/*************************************************************************/
-xbShort clipperLock::LockRecord(
- xbShort LockType, xbULong RecNo, xbOffT RecCnt )
-{
-
-#ifdef _LARGEFILE64_SOURCE
- if( lseek64( dbf->GetDbfFileNo(), 1000000000L + RecNo, SEEK_SET ))
- return XB_LOCK_FAILED;
-#else
- if( lseek( dbf->GetDbfFileNo(), 1000000000L + RecNo, SEEK_SET ))
- return XB_LOCK_FAILED;
-#endif
-
- return LockFile( dbf->GetDbfFileNo(), LockType, RecCnt );
-}
-/*************************************************************************/
-xbShort clipperLock::LockMemo( xbShort LockType )
-{
- return XB_NO_ERROR;
-}
-/*************************************************************************/
-xbShort clipperLock::LockIndex( xbShort LockType )
-{
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-xbShort clipperLock::UnlockAll()
-{
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-/*************************************************************************/
-foxproLock::foxproLock( xbDbf * pdbf ) : xbLock( pdbf )
-{
- std::cout << "foxproLock constructor" << std::cout;
-}
-/*************************************************************************/
-xbShort foxproLock::LockTableHeader( xbShort LockType )
-{
-
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-xbShort foxproLock::LockTable( xbShort LockType )
-{
-
- if(( LockType == XB_LOCK || LockType == XB_LOCK_HOLD ) && TableLockCnt ){
- TableLockCnt++;
- return XB_NO_ERROR;
- }
- if( LockType == XB_UNLOCK && TableLockCnt > 1 ){
- TableLockCnt--;
- return XB_NO_ERROR;
- }
-
-
-// something goes in here
-
-
- if( LockType == XB_UNLOCK )
- TableLockCnt--;
- else
- TableLockCnt++;
-
- return XB_NO_ERROR;
-
-}
-/*************************************************************************/
-xbShort foxproLock::LockRecord( xbShort LockType, xbULong RecNo, xbOffT len )
-{
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-xbShort foxproLock::LockMemo( xbShort LockType )
-{
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-xbShort foxproLock::LockIndex( xbShort LockType )
-{
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-xbShort foxproLock::UnlockAll()
-{
- return XB_INVALID_LOCK_OPTION;
-}
-/*************************************************************************/
-
-#endif // XB_LOCKING_ON
-
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