/*
* Perform a write of WorkArea memory to the data store.
*/
static HB_ERRCODE hb_delimGoCold( DELIMAREAP pArea )
{
HB_TRACE(HB_TR_DEBUG, ("hb_delimGoCold(%p)", pArea));
if( pArea->fRecordChanged )
{
ULONG ulSize = hb_delimEncodeBuffer( pArea );
if( hb_fileWriteAt( pArea->pFile, pArea->pBuffer, ulSize,
pArea->ulRecordOffset ) != ulSize )
{
PHB_ITEM pError = hb_errNew();
hb_errPutGenCode( pError, EG_WRITE );
hb_errPutDescription( pError, hb_langDGetErrorDesc( EG_WRITE ) );
hb_errPutSubCode( pError, EDBF_WRITE );
hb_errPutOsCode( pError, hb_fsError() );
hb_errPutFileName( pError, pArea->szFileName );
SELF_ERROR( ( AREAP ) pArea, pError );
hb_itemRelease( pError );
return HB_FAILURE;
}
pArea->ulFileSize += ulSize;
pArea->ulNextOffset = pArea->ulFileSize;
pArea->fRecordChanged = FALSE;
pArea->fFlush = TRUE;
}
return HB_SUCCESS;
}
/*
* Perform a write of WorkArea memory to the data store.
*/
static HB_ERRCODE hb_sdfGoCold( SDFAREAP pArea )
{
HB_TRACE( HB_TR_DEBUG, ( "hb_sdfGoCold(%p)", pArea ) );
if( pArea->fRecordChanged )
{
HB_SIZE nWrite = pArea->uiRecordLen + pArea->uiEolLen;
if( hb_fileWriteAt( pArea->pFile, pArea->pRecord, nWrite,
pArea->nRecordOffset ) != nWrite )
{
PHB_ITEM pError = hb_errNew();
hb_errPutGenCode( pError, EG_WRITE );
hb_errPutDescription( pError, hb_langDGetErrorDesc( EG_WRITE ) );
hb_errPutSubCode( pError, EDBF_WRITE );
hb_errPutOsCode( pError, hb_fsError() );
hb_errPutFileName( pError, pArea->szFileName );
SELF_ERROR( &pArea->area, pError );
hb_itemRelease( pError );
return HB_FAILURE;
}
pArea->nFileSize += nWrite;
pArea->nNextOffset = pArea->nFileSize;
pArea->fRecordChanged = HB_FALSE;
pArea->fFlush = HB_TRUE;
}
return HB_SUCCESS;
}
static PHB_FILE s_fileOpen( PHB_FILE_FUNCS pFuncs, const char * pszName,
const char * pszDefExt, HB_FATTR nExFlags,
const char * pPaths, PHB_ITEM pError )
{
PHB_FILE pFile = NULL;
HB_ERRCODE errcode = 0;
int iPort, iTimeout, iBaud, iParity, iSize, iStop, iFlow;
HB_BOOL fRead, fWrite;
HB_SYMBOL_UNUSED( pFuncs );
HB_SYMBOL_UNUSED( pszDefExt );
HB_SYMBOL_UNUSED( pPaths );
fRead = fWrite = HB_TRUE;
iPort = s_filePortParams( pszName, &iTimeout,
&iBaud, &iParity, &iSize, &iStop, &iFlow );
if( iPort > 0 )
{
if( hb_comOpen( iPort ) == 0 &&
hb_comInit( iPort, iBaud, iParity, iSize, iStop ) == 0 &&
hb_comFlowControl( iPort, NULL, iFlow ) == 0 )
{
switch( nExFlags & ( FO_READ | FO_WRITE | FO_READWRITE ) )
{
case FO_READ:
fWrite = HB_FALSE;
break;
case FO_WRITE:
fRead = HB_FALSE;
break;
}
pFile = s_fileNew( iPort, iTimeout, fRead, fWrite );
}
else
errcode = hb_comGetError( iPort );
}
else
errcode = HB_COM_ERR_WRONGPORT;
hb_fsSetError( errcode );
if( pError )
{
hb_errPutFileName( pError, pszName );
if( pFile == NULL )
{
hb_errPutOsCode( pError, errcode );
hb_errPutGenCode( pError, ( HB_ERRCODE ) EG_OPEN );
}
}
return pFile;
}
PHB_ITEM hb_errRT_FileError( PHB_ITEM pError, const char * szSubSystem,
HB_ERRCODE errGenCode, HB_ERRCODE errSubCode,
const char * szFileName )
{
if( ! pError )
{
pError = hb_errNew();
hb_errPutSeverity( pError, ES_ERROR );
hb_errPutSubSystem( pError, szSubSystem ? szSubSystem : HB_ERR_SS_BASE );
hb_errPutFlags( pError, EF_CANRETRY | EF_CANDEFAULT );
hb_errPutFileName( pError, szFileName );
}
hb_errPutGenCode( pError, errGenCode );
hb_errPutDescription( pError, hb_langDGetErrorDesc( errGenCode ) );
hb_errPutSubCode( pError, errSubCode );
hb_errPutOsCode( pError, hb_fsError() );
return pError;
}
PHB_ITEM hb_errRT_New_Subst(
HB_USHORT uiSeverity,
const char * szSubSystem,
HB_ERRCODE errGenCode,
HB_ERRCODE errSubCode,
const char * szDescription,
const char * szOperation,
HB_ERRCODE errOsCode,
HB_USHORT uiFlags )
{
PHB_ITEM pError = hb_errNew();
hb_errPutSeverity( pError, uiSeverity );
hb_errPutSubSystem( pError, szSubSystem ? szSubSystem : HB_ERR_SS_BASE );
hb_errPutGenCode( pError, errGenCode );
hb_errPutSubCode( pError, errSubCode );
hb_errPutDescription( pError, szDescription ? szDescription : hb_langDGetItem( HB_LANG_ITEM_BASE_ERRDESC + errGenCode ) );
hb_errPutOperation( pError, szOperation );
hb_errPutOsCode( pError, errOsCode );
hb_errPutFlags( pError, ( HB_USHORT ) ( uiFlags | EF_CANSUBSTITUTE ) );
return pError;
}
static HB_ERRCODE hb_mixErrorRT( ADSXAREAP pArea,
HB_ERRCODE errGenCode, HB_ERRCODE errSubCode,
char * filename, HB_ERRCODE errOsCode,
HB_USHORT uiFlags )
{
PHB_ITEM pError;
HB_ERRCODE iRet = HB_FAILURE;
if( hb_vmRequestQuery() == 0 )
{
pError = hb_errNew();
hb_errPutGenCode( pError, errGenCode );
hb_errPutSubCode( pError, errSubCode );
hb_errPutOsCode( pError, errOsCode );
hb_errPutDescription( pError, hb_langDGetErrorDesc( errGenCode ) );
if( filename )
hb_errPutFileName( pError, filename );
if( uiFlags )
hb_errPutFlags( pError, uiFlags );
iRet = SELF_ERROR( ( AREAP ) pArea, pError );
hb_errRelease( pError );
}
return iRet;
}
static PHB_FILE s_fileOpen( PHB_FILE_FUNCS pFuncs, const char * pszName,
const char * pszDefExt, HB_FATTR nExFlags,
const char * pPaths, PHB_ITEM pError )
{
const char * pszHost = pszName + FILE_PREFIX_LEN, * ptr;
PHB_FILE pFile = NULL;
HB_ERRCODE errcode = 0;
HB_SIZE nLen = 0;
int iPort = 0;
HB_MAXINT timeout = -1;
HB_SYMBOL_UNUSED( pFuncs );
HB_SYMBOL_UNUSED( pszDefExt );
HB_SYMBOL_UNUSED( pPaths );
if( ( ptr = strchr( pszHost, ':' ) ) != NULL && ptr != pszHost )
{
nLen = ptr - pszHost;
++ptr;
while( HB_ISDIGIT( * ptr ) )
iPort = iPort * 10 + ( * ptr++ - '0' );
if( * ptr == ':' )
{
++ptr;
while( HB_ISDIGIT( * ptr ) )
timeout = HB_MAX( timeout, 0 ) * 10 + ( * ptr++ - '0' );
}
if( * ptr != 0 && * ptr != ':' )
iPort = 0;
}
if( iPort > 0 )
{
char * pszAddr, * pszIpAddr;
hb_socketAutoInit();
pszAddr = hb_strndup( pszHost, nLen );
pszIpAddr = hb_socketResolveAddr( pszAddr, HB_SOCKET_AF_INET );
hb_xfree( pszAddr );
if( pszIpAddr )
{
HB_SOCKET sd = hb_socketOpen( HB_SOCKET_PF_INET, HB_SOCKET_PT_STREAM, 0 );
if( sd != HB_NO_SOCKET )
{
void * pSockAddr;
unsigned uiLen;
if( hb_socketInetAddr( &pSockAddr, &uiLen, pszIpAddr, iPort ) )
{
hb_socketSetKeepAlive( sd, HB_TRUE );
if( hb_socketConnect( sd, pSockAddr, uiLen, timeout ) == 0 )
{
PHB_SOCKEX sock;
switch( nExFlags & ( FO_READ | FO_WRITE | FO_READWRITE ) )
{
case FO_READ:
hb_socketShutdown( sd, HB_SOCKET_SHUT_WR );
break;
case FO_WRITE:
hb_socketShutdown( sd, HB_SOCKET_SHUT_RD );
break;
}
sock = hb_sockexNew( sd, NULL, NULL );
if( sock )
{
hb_sockexSetShutDown( sock, HB_TRUE );
hb_sockexSetAutoFlush( sock, HB_TRUE );
pFile = s_fileNew( sock, timeout );
sd = HB_NO_SOCKET;
}
}
hb_xfree( pSockAddr );
}
if( sd != HB_NO_SOCKET )
{
errcode = hb_socketGetError();
hb_socketClose( sd );
}
}
hb_xfree( pszIpAddr );
}
if( errcode == 0 && pFile == NULL )
errcode = hb_socketGetError();
}
else
errcode = HB_SOCKET_ERR_WRONGADDR;
hb_fsSetError( errcode );
if( pError )
{
hb_errPutFileName( pError, pszName );
if( pFile == NULL )
{
hb_errPutOsCode( pError, errcode );
hb_errPutGenCode( pError, ( HB_ERRCODE ) EG_OPEN );
}
}
return pFile;
}
static PHB_FILE s_fileExtOpen( PHB_FILE_FUNCS pFuncs, const char * pszFileName, const char * pDefExt,
HB_USHORT uiExFlags, const char * pPaths,
PHB_ITEM pError )
{
PHB_FILE pFile = NULL;
#if defined( HB_OS_UNIX )
HB_BOOL fResult, fSeek = HB_FALSE;
# if defined( HB_USE_LARGEFILE64 )
struct stat64 statbuf;
# else
struct stat statbuf;
# endif
#endif
HB_BOOL fShared, fReadonly;
HB_FHANDLE hFile;
char * pszFile;
HB_SYMBOL_UNUSED( pFuncs );
fShared = ( uiExFlags & ( FO_DENYREAD | FO_DENYWRITE | FO_EXCLUSIVE ) ) == 0;
fReadonly = ( uiExFlags & ( FO_READ | FO_WRITE | FO_READWRITE ) ) == FO_READ;
pszFile = hb_fsExtName( pszFileName, pDefExt, uiExFlags, pPaths );
hb_vmUnlock();
#if defined( HB_OS_UNIX )
# if defined( HB_USE_LARGEFILE64 )
fResult = stat64( ( char * ) pszFile, &statbuf ) == 0;
# else
fResult = stat( ( char * ) pszFile, &statbuf ) == 0;
# endif
hb_fsSetIOError( fResult, 0 );
if( fResult )
{
hb_threadEnterCriticalSection( &s_fileMtx );
pFile = hb_fileFind( statbuf.st_dev, statbuf.st_ino );
if( pFile )
{
if( ! fShared || ! pFile->shared || ( uiExFlags & FXO_TRUNCATE ) != 0 )
fResult = HB_FALSE;
else if( ! fReadonly && pFile->readonly )
pFile = NULL;
else
pFile->used++;
if( ( uiExFlags & FXO_NOSEEKPOS ) == 0 )
{
# if defined( HB_OS_VXWORKS )
fSeek = ! S_ISFIFO( statbuf.st_mode );
# else
fSeek = ! S_ISFIFO( statbuf.st_mode ) && ! S_ISSOCK( statbuf.st_mode );
# endif
}
}
hb_threadLeaveCriticalSection( &s_fileMtx );
}
if( pFile )
{
if( ! fResult )
{
hb_fsSetError( ( uiExFlags & FXO_TRUNCATE ) ? 5 : 32 );
pFile = NULL;
}
else if( uiExFlags & FXO_COPYNAME )
hb_strncpy( ( char * ) pszFileName, pszFile, HB_PATH_MAX - 1 );
if( pError )
{
hb_errPutFileName( pError, pszFile );
if( ! fResult )
{
hb_errPutOsCode( pError, hb_fsError() );
hb_errPutGenCode( pError, ( HB_ERRCODE ) ( ( uiExFlags & FXO_TRUNCATE ) ? EG_CREATE : EG_OPEN ) );
}
}
}
else
#endif
{
hFile = hb_fsExtOpen( pszFileName, pDefExt, uiExFlags, pPaths, pError );
if( hFile != FS_ERROR )
{
HB_ULONG device = 0, inode = 0;
#if defined( HB_OS_UNIX )
# if defined( HB_USE_LARGEFILE64 )
if( fstat64( hFile, &statbuf ) == 0 )
# else
if( fstat( hFile, &statbuf ) == 0 )
# endif
{
device = ( HB_ULONG ) statbuf.st_dev;
inode = ( HB_ULONG ) statbuf.st_ino;
if( ( uiExFlags & FXO_NOSEEKPOS ) == 0 )
{
# if defined( HB_OS_VXWORKS )
fSeek = ! S_ISFIFO( statbuf.st_mode );
# else
fSeek = ! S_ISFIFO( statbuf.st_mode ) && ! S_ISSOCK( statbuf.st_mode );
# endif
}
}
#endif
hb_threadEnterCriticalSection( &s_fileMtx );
pFile = hb_fileNew( hFile, fShared, fReadonly, device, inode, HB_TRUE );
if( pFile->hFile != hFile )
{
if( pFile->hFileRO == FS_ERROR && ! fReadonly && pFile->readonly )
{
pFile->hFileRO = pFile->hFile;
pFile->hFile = hFile;
pFile->readonly = HB_FALSE;
hFile = FS_ERROR;
}
if( pFile->uiLocks == 0 )
{
#if ! defined( HB_USE_SHARELOCKS ) || defined( HB_USE_BSDLOCKS )
if( pFile->hFileRO != FS_ERROR )
{
hb_fsClose( pFile->hFileRO );
pFile->hFileRO = FS_ERROR;
}
#endif
if( hFile != FS_ERROR )
{
hb_fsClose( hFile );
hFile = FS_ERROR;
#if defined( HB_USE_SHARELOCKS ) && ! defined( HB_USE_BSDLOCKS )
/* TOFIX: possible race condition */
hb_fsLockLarge( hFile, HB_SHARELOCK_POS, HB_SHARELOCK_SIZE,
FL_LOCK | FLX_SHARED );
#endif
}
}
}
else
hFile = FS_ERROR;
hb_threadLeaveCriticalSection( &s_fileMtx );
if( hFile != FS_ERROR )
{
/* TOFIX: possible race condition in MT mode,
* close() is not safe due to existing locks
* which are removed.
*/
hb_fsClose( hFile );
}
}
}
hb_xfree( pszFile );
#if defined( HB_OS_UNIX )
if( pFile && fSeek )
pFile = hb_fileposNew( pFile );
#endif
hb_vmLock();
return pFile;
}
/*
* Open a data store in the WorkArea.
*/
static HB_ERRCODE hb_sdfOpen( SDFAREAP pArea, LPDBOPENINFO pOpenInfo )
{
PHB_ITEM pError = NULL;
PHB_FNAME pFileName;
HB_ERRCODE errCode;
HB_USHORT uiFlags;
HB_BOOL fRetry;
char szFileName[ HB_PATH_MAX ];
char szAlias[ HB_RDD_MAX_ALIAS_LEN + 1 ];
HB_TRACE( HB_TR_DEBUG, ( "hb_sdfOpen(%p,%p)", pArea, pOpenInfo ) );
pArea->fShared = HB_TRUE; /* pOpenInfo->fShared; */
pArea->fReadonly = HB_TRUE; /* pOpenInfo->fReadonly; */
if( pOpenInfo->cdpId )
{
pArea->area.cdPage = hb_cdpFindExt( pOpenInfo->cdpId );
if( ! pArea->area.cdPage )
pArea->area.cdPage = hb_vmCDP();
}
else
pArea->area.cdPage = hb_vmCDP();
uiFlags = ( pArea->fReadonly ? FO_READ : FO_READWRITE ) |
( pArea->fShared ? FO_DENYNONE : FO_EXCLUSIVE );
pFileName = hb_fsFNameSplit( pOpenInfo->abName );
/* Add default file name extension if necessary */
if( hb_setGetDefExtension() && ! pFileName->szExtension )
{
PHB_ITEM pFileExt = hb_itemPutC( NULL, NULL );
SELF_INFO( &pArea->area, DBI_TABLEEXT, pFileExt );
pFileName->szExtension = hb_itemGetCPtr( pFileExt );
hb_fsFNameMerge( szFileName, pFileName );
hb_itemRelease( pFileExt );
}
else
{
hb_strncpy( szFileName, pOpenInfo->abName, sizeof( szFileName ) - 1 );
}
/* Create default alias if necessary */
if( ! pOpenInfo->atomAlias && pFileName->szName )
{
const char * szName = strrchr( pFileName->szName, ':' );
if( szName == NULL )
szName = pFileName->szName;
else
++szName;
hb_strncpyUpperTrim( szAlias, szName, sizeof( szAlias ) - 1 );
pOpenInfo->atomAlias = szAlias;
}
hb_xfree( pFileName );
/* Try open */
do
{
pArea->pFile = hb_fileExtOpen( szFileName, NULL, uiFlags |
FXO_DEFAULTS | FXO_SHARELOCK |
FXO_COPYNAME | FXO_NOSEEKPOS,
NULL, pError );
if( ! pArea->pFile )
{
if( ! pError )
{
pError = hb_errNew();
hb_errPutGenCode( pError, EG_OPEN );
hb_errPutSubCode( pError, EDBF_OPEN_DBF );
hb_errPutOsCode( pError, hb_fsError() );
hb_errPutDescription( pError, hb_langDGetErrorDesc( EG_OPEN ) );
hb_errPutFileName( pError, szFileName );
hb_errPutFlags( pError, EF_CANRETRY | EF_CANDEFAULT );
}
fRetry = ( SELF_ERROR( &pArea->area, pError ) == E_RETRY );
}
else
fRetry = HB_FALSE;
}
while( fRetry );
if( pError )
hb_itemRelease( pError );
if( ! pArea->pFile )
return HB_FAILURE;
errCode = SUPER_OPEN( &pArea->area, pOpenInfo );
if( errCode != HB_SUCCESS )
{
SELF_CLOSE( &pArea->area );
return HB_FAILURE;
}
hb_sdfInitArea( pArea, szFileName );
/* Position cursor at the first record */
return SELF_GOTOP( &pArea->area );
}
/*
* Create a data store in the specified WorkArea.
*/
static HB_ERRCODE hb_sdfCreate( SDFAREAP pArea, LPDBOPENINFO pCreateInfo )
{
HB_ERRCODE errCode;
PHB_FNAME pFileName;
PHB_ITEM pError = NULL;
HB_BOOL fRetry;
char szFileName[ HB_PATH_MAX ];
HB_TRACE( HB_TR_DEBUG, ( "hb_sdfCreate(%p,%p)", pArea, pCreateInfo ) );
pArea->fShared = HB_FALSE; /* pCreateInfo->fShared; */
pArea->fReadonly = HB_FALSE; /* pCreateInfo->fReadonly */
if( pCreateInfo->cdpId )
{
pArea->area.cdPage = hb_cdpFindExt( pCreateInfo->cdpId );
if( ! pArea->area.cdPage )
pArea->area.cdPage = hb_vmCDP();
}
else
pArea->area.cdPage = hb_vmCDP();
pFileName = hb_fsFNameSplit( pCreateInfo->abName );
if( hb_setGetDefExtension() && ! pFileName->szExtension )
{
PHB_ITEM pItem = hb_itemPutC( NULL, NULL );
SELF_INFO( &pArea->area, DBI_TABLEEXT, pItem );
pFileName->szExtension = hb_itemGetCPtr( pItem );
hb_fsFNameMerge( szFileName, pFileName );
hb_itemRelease( pItem );
}
else
{
hb_strncpy( szFileName, pCreateInfo->abName, sizeof( szFileName ) - 1 );
}
hb_xfree( pFileName );
/* Try create */
do
{
pArea->pFile = hb_fileExtOpen( szFileName, NULL,
FO_READWRITE | FO_EXCLUSIVE | FXO_TRUNCATE |
FXO_DEFAULTS | FXO_SHARELOCK | FXO_COPYNAME |
FXO_NOSEEKPOS,
NULL, pError );
if( ! pArea->pFile )
{
if( ! pError )
{
pError = hb_errNew();
hb_errPutGenCode( pError, EG_CREATE );
hb_errPutSubCode( pError, EDBF_CREATE_DBF );
hb_errPutOsCode( pError, hb_fsError() );
hb_errPutDescription( pError, hb_langDGetErrorDesc( EG_CREATE ) );
hb_errPutFileName( pError, szFileName );
hb_errPutFlags( pError, EF_CANRETRY | EF_CANDEFAULT );
}
fRetry = ( SELF_ERROR( &pArea->area, pError ) == E_RETRY );
}
else
fRetry = HB_FALSE;
}
while( fRetry );
if( pError )
hb_itemRelease( pError );
if( ! pArea->pFile )
return HB_FAILURE;
errCode = SUPER_CREATE( &pArea->area, pCreateInfo );
if( errCode != HB_SUCCESS )
{
SELF_CLOSE( &pArea->area );
return errCode;
}
hb_sdfInitArea( pArea, szFileName );
/* Position cursor at the first record */
return SELF_GOTOP( &pArea->area );
}
static PHB_FILE s_fileExtOpen( PHB_FILE_FUNCS pFuncs, const char * pszFileName, const char * pDefExt,
HB_FATTR nExFlags, const char * pPaths,
PHB_ITEM pError )
{
PHB_FILE pFile = NULL;
#if defined( HB_OS_UNIX )
HB_BOOL fSeek = HB_FALSE;
# if defined( HB_USE_LARGEFILE64 )
struct stat64 statbuf;
# else
struct stat statbuf;
# endif
#endif
HB_BOOL fResult, fShared;
int iMode;
HB_FHANDLE hFile;
char * pszFile;
HB_SYMBOL_UNUSED( pFuncs );
fShared = ( nExFlags & ( FO_DENYREAD | FO_DENYWRITE | FO_EXCLUSIVE ) ) == 0;
iMode = ( int ) ( nExFlags & ( FO_READ | FO_WRITE | FO_READWRITE ) );
pszFile = hb_fsExtName( pszFileName, pDefExt, nExFlags, pPaths );
hb_vmUnlock();
#if ! defined( HB_OS_UNIX )
fResult = HB_TRUE;
#else
# if defined( HB_USE_SHARELOCKS ) && ! defined( HB_USE_BSDLOCKS )
if( nExFlags & FXO_SHARELOCK )
{
if( iMode == FO_WRITE && fShared )
{
if( access( ( char * ) pszFile, R_OK ) == 0 ||
access( ( char * ) pszFile, F_OK ) != 0 )
{
nExFlags = ( nExFlags ^ FO_WRITE ) | FO_READWRITE;
iMode = FO_READWRITE;
}
else
nExFlags ^= FXO_SHARELOCK;
}
else if( iMode == FO_READ && ! fShared )
{
nExFlags &= ~ ( HB_FATTR ) ( FO_DENYREAD | FO_DENYWRITE | FO_EXCLUSIVE );
fShared = HB_TRUE;
}
}
# endif
hb_threadEnterCriticalSection( &s_fileMtx );
# if defined( HB_USE_LARGEFILE64 )
fResult = stat64( ( char * ) pszFile, &statbuf ) == 0;
# else
fResult = stat( ( char * ) pszFile, &statbuf ) == 0;
# endif
hb_fsSetIOError( fResult, 0 );
if( fResult )
{
pFile = hb_fileFind( ( HB_ULONG ) statbuf.st_dev,
( HB_ULONG ) statbuf.st_ino );
if( pFile )
{
if( ! fShared || ! pFile->shared || ( nExFlags & FXO_TRUNCATE ) != 0 )
{
fResult = HB_FALSE;
pFile = NULL;
}
else if( pFile->mode != FO_READWRITE && pFile->mode != iMode )
{
iMode = FO_READWRITE;
pFile = NULL;
}
else
{
pFile->used++;
if( ( nExFlags & FXO_NOSEEKPOS ) == 0 )
{
# if defined( HB_OS_VXWORKS )
fSeek = ! S_ISFIFO( statbuf.st_mode );
# else
fSeek = ! S_ISFIFO( statbuf.st_mode ) && ! S_ISSOCK( statbuf.st_mode );
# endif
}
}
}
}
else
fResult = HB_TRUE;
if( fResult && pFile == NULL )
#endif /* HB_OS_UNIX */
{
hFile = hb_fsExtOpen( pszFile, NULL,
nExFlags & ~ ( HB_FATTR ) ( FXO_DEFAULTS | FXO_COPYNAME ),
NULL, NULL );
if( hFile != FS_ERROR )
{
HB_ULONG device = 0, inode = 0;
#if ! defined( HB_OS_UNIX )
hb_threadEnterCriticalSection( &s_fileMtx );
#else
# if defined( HB_USE_LARGEFILE64 )
if( fstat64( hFile, &statbuf ) == 0 )
# else
if( fstat( hFile, &statbuf ) == 0 )
# endif
{
device = ( HB_ULONG ) statbuf.st_dev;
inode = ( HB_ULONG ) statbuf.st_ino;
if( ( nExFlags & FXO_NOSEEKPOS ) == 0 )
{
# if defined( HB_OS_VXWORKS )
fSeek = ! S_ISFIFO( statbuf.st_mode );
# else
fSeek = ! S_ISFIFO( statbuf.st_mode ) && ! S_ISSOCK( statbuf.st_mode );
# endif
}
}
#endif /* HB_OS_UNIX */
pFile = hb_fileNew( hFile, fShared, iMode, device, inode, HB_TRUE );
if( pFile->hFile != hFile )
{
if( pFile->mode != FO_READWRITE && iMode == FO_READWRITE )
{
HB_FHANDLE hTemp = pFile->hFileRO;
pFile->hFileRO = pFile->hFile;
pFile->hFile = hFile;
pFile->mode = iMode;
hFile = hTemp;
}
if( ! fShared || ! pFile->shared || pFile->mode != FO_READWRITE )
{
fResult = HB_FALSE;
if( pFile->hFileRO == FS_ERROR && pFile->uiLocks != 0 )
{
pFile->hFileRO = hFile;
hFile = FS_ERROR;
}
}
if( pFile->uiLocks == 0 )
{
#if ! defined( HB_USE_SHARELOCKS ) || defined( HB_USE_BSDLOCKS )
if( pFile->hFileRO != FS_ERROR )
{
hb_fsClose( pFile->hFileRO );
pFile->hFileRO = FS_ERROR;
}
#endif
if( hFile != FS_ERROR )
{
hb_fsClose( hFile );
hFile = FS_ERROR;
#if defined( HB_USE_SHARELOCKS ) && ! defined( HB_USE_BSDLOCKS )
/* TOFIX: possible race condition */
hb_fsLockLarge( pFile->hFile, HB_SHARELOCK_POS, HB_SHARELOCK_SIZE,
FL_LOCK | FLX_SHARED );
#endif
}
}
if( !fResult )
{
if( pFile )
{
--pFile->used;
pFile = NULL;
}
if( hFile != FS_ERROR )
{
/* TOFIX: possible race condition in MT mode,
* close() is not safe due to existing locks
* which are removed.
*/
hb_fsClose( hFile );
}
}
}
#if ! defined( HB_OS_UNIX )
hb_threadLeaveCriticalSection( &s_fileMtx );
#endif
}
}
#if defined( HB_OS_UNIX )
hb_threadLeaveCriticalSection( &s_fileMtx );
if( pFile && fSeek )
pFile = hb_fileposNew( pFile );
#endif
if( ! fResult )
hb_fsSetError( ( nExFlags & FXO_TRUNCATE ) ? 5 : 32 );
if( ( nExFlags & FXO_COPYNAME ) != 0 && pFile )
hb_strncpy( ( char * ) HB_UNCONST( pszFileName ), pszFile, HB_PATH_MAX - 1 );
if( pError )
{
hb_errPutFileName( pError, pszFile );
if( ! fResult )
{
hb_errPutOsCode( pError, hb_fsError() );
hb_errPutGenCode( pError, ( HB_ERRCODE ) ( ( nExFlags & FXO_TRUNCATE ) ? EG_CREATE : EG_OPEN ) );
}
}
hb_xfree( pszFile );
hb_vmLock();
return pFile;
}