328 lines
10 KiB
C
328 lines
10 KiB
C
/*
|
|
* $Id$
|
|
*/
|
|
|
|
/*
|
|
* Harbour Project source code:
|
|
* HB_DISKSPACE() function
|
|
*
|
|
* Copyright 2000 Victor Szakats <info@szelvesz.hu>
|
|
* www - http://www.harbour-project.org
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version, with one exception:
|
|
*
|
|
* The exception is that if you link the Harbour Runtime Library (HRL)
|
|
* and/or the Harbour Virtual Machine (HVM) with other files to produce
|
|
* an executable, this does not by itself cause the resulting executable
|
|
* to be covered by the GNU General Public License. Your use of that
|
|
* executable is in no way restricted on account of linking the HRL
|
|
* and/or HVM code into it.
|
|
*
|
|
* 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
|
|
* their web site at http://www.gnu.org/).
|
|
*
|
|
*/
|
|
|
|
/* NOTE: For OS/2. Must be ahead of any and all #include statements */
|
|
#define INCL_BASE
|
|
#define INCL_DOSERRORS
|
|
|
|
#define HB_OS_WIN_32_USED
|
|
|
|
#include <ctype.h>
|
|
|
|
#include "hbapi.h"
|
|
#include "hbapierr.h"
|
|
#include "hbapifs.h"
|
|
|
|
#if defined( HB_OS_UNIX )
|
|
#include <sys/vfs.h>
|
|
#endif
|
|
|
|
#ifdef HB_EXTENSION
|
|
|
|
HB_FUNC( HB_DISKSPACE )
|
|
{
|
|
char * szPath = ISCHAR( 1 ) ? hb_parc( 1 ) : NULL;
|
|
USHORT uiType = ISNUM( 2 ) ? hb_parni( 2 ) : HB_DISK_AVAIL;
|
|
double dSpace = 0.0;
|
|
|
|
if( uiType > HB_DISK_TOTAL )
|
|
uiType = HB_DISK_AVAIL;
|
|
|
|
#if defined(HB_OS_DOS)
|
|
|
|
{
|
|
USHORT uiDrive = ( szPath[ 0 ] == '\0' ) ? 0 : ( toupper( szPath[ 0 ] ) - 'A' + 1 );
|
|
|
|
while( TRUE )
|
|
{
|
|
union REGS regs;
|
|
|
|
regs.HB_XREGS.dx = uiDrive;
|
|
regs.h.ah = 0x36;
|
|
HB_DOS_INT86( 0x21, ®s, ®s );
|
|
|
|
if( regs.HB_XREGS.ax != 0xFFFF )
|
|
{
|
|
USHORT uiClusterTotal = regs.HB_XREGS.dx;
|
|
USHORT uiClusterFree = regs.HB_XREGS.bx;
|
|
USHORT uiSecPerCluster = regs.HB_XREGS.ax;
|
|
USHORT uiSectorSize = regs.HB_XREGS.cx;
|
|
|
|
switch( uiType )
|
|
{
|
|
case HB_DISK_AVAIL:
|
|
case HB_DISK_FREE:
|
|
dSpace = ( double ) uiClusterFree *
|
|
( double ) uiSecPerCluster *
|
|
( double ) uiSectorSize;
|
|
break;
|
|
|
|
case HB_DISK_USED:
|
|
case HB_DISK_TOTAL:
|
|
dSpace = ( double ) uiClusterTotal *
|
|
( double ) uiSecPerCluster *
|
|
( double ) uiSectorSize;
|
|
|
|
if( uiType == HB_DISK_USED )
|
|
dSpace -= ( double ) uiClusterFree *
|
|
( double ) uiSecPerCluster *
|
|
( double ) uiSectorSize;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( hb_errRT_BASE_Ext1( EG_OPEN, 2018, NULL, NULL, 0, ( EF_CANDEFAULT | EF_CANRETRY ), 2, hb_paramError( 1 ), hb_paramError( 2 ) ) == E_RETRY )
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
#elif defined(HB_OS_WIN_32)
|
|
|
|
{
|
|
while( TRUE )
|
|
{
|
|
typedef BOOL ( WINAPI * P_GDFSE )( LPCTSTR, PULARGE_INTEGER,
|
|
PULARGE_INTEGER, PULARGE_INTEGER );
|
|
|
|
P_GDFSE pGetDiskFreeSpaceEx;
|
|
UINT uiErrMode;
|
|
|
|
uiErrMode = SetErrorMode( SEM_FAILCRITICALERRORS );
|
|
|
|
SetLastError( 0 );
|
|
|
|
pGetDiskFreeSpaceEx = ( P_GDFSE ) GetProcAddress( GetModuleHandle( "kernel32.dll" ),
|
|
"GetDiskFreeSpaceExA");
|
|
|
|
if( pGetDiskFreeSpaceEx )
|
|
{
|
|
ULARGE_INTEGER i64FreeBytesToCaller,
|
|
i64TotalBytes,
|
|
i64FreeBytes,
|
|
i64RetVal;
|
|
|
|
if( pGetDiskFreeSpaceEx( szPath,
|
|
( PULARGE_INTEGER ) &i64FreeBytesToCaller,
|
|
( PULARGE_INTEGER ) &i64TotalBytes,
|
|
( PULARGE_INTEGER ) &i64FreeBytes ) )
|
|
{
|
|
switch( uiType )
|
|
{
|
|
case HB_DISK_AVAIL:
|
|
memcpy( &i64RetVal, &i64FreeBytesToCaller, sizeof( ULARGE_INTEGER ) );
|
|
break;
|
|
|
|
case HB_DISK_FREE:
|
|
memcpy( &i64RetVal, &i64FreeBytes, sizeof( ULARGE_INTEGER ) );
|
|
break;
|
|
|
|
case HB_DISK_USED:
|
|
case HB_DISK_TOTAL:
|
|
memcpy( &i64RetVal, &i64TotalBytes, sizeof( ULARGE_INTEGER ) );
|
|
}
|
|
|
|
#if (defined(__GNUC__) || defined(_MSC_VER)) && !defined(__RSXNT__)
|
|
|
|
dSpace = ( double ) i64RetVal.LowPart +
|
|
( double ) i64RetVal.HighPart +
|
|
( double ) i64RetVal.HighPart *
|
|
( double ) 0xFFFFFFFF;
|
|
|
|
if( uiType == HB_DISK_USED )
|
|
{
|
|
dSpace -= ( double ) i64FreeBytes.LowPart +
|
|
( double ) i64FreeBytes.HighPart +
|
|
( double ) i64FreeBytes.HighPart *
|
|
( double ) 0xFFFFFFFF;
|
|
}
|
|
|
|
#else
|
|
|
|
/* NOTE: Borland doesn't seem to deal with the un-named
|
|
struct that is part of ULARGE_INTEGER
|
|
[pt] */
|
|
|
|
dSpace = ( double ) i64RetVal.u.LowPart +
|
|
( double ) i64RetVal.u.HighPart +
|
|
( double ) i64RetVal.u.HighPart *
|
|
( double ) 0xFFFFFFFF;
|
|
|
|
if( uiType == HB_DISK_USED )
|
|
{
|
|
dSpace -= ( double ) i64FreeBytes.u.LowPart +
|
|
( double ) i64FreeBytes.u.HighPart +
|
|
( double ) i64FreeBytes.u.HighPart *
|
|
( double ) 0xFFFFFFFF;
|
|
}
|
|
|
|
#endif
|
|
}
|
|
}
|
|
else
|
|
{
|
|
DWORD dwSectorsPerCluster;
|
|
DWORD dwBytesPerSector;
|
|
DWORD dwNumberOfFreeClusters;
|
|
DWORD dwTotalNumberOfClusters;
|
|
|
|
SetLastError( 0 );
|
|
|
|
if( GetDiskFreeSpace( szPath,
|
|
&dwSectorsPerCluster,
|
|
&dwBytesPerSector,
|
|
&dwNumberOfFreeClusters,
|
|
&dwTotalNumberOfClusters ) )
|
|
{
|
|
switch( uiType )
|
|
{
|
|
case HB_DISK_AVAIL:
|
|
case HB_DISK_FREE:
|
|
dSpace = ( double ) dwNumberOfFreeClusters *
|
|
( double ) dwSectorsPerCluster *
|
|
( double ) dwBytesPerSector;
|
|
break;
|
|
|
|
case HB_DISK_USED:
|
|
case HB_DISK_TOTAL:
|
|
dSpace = ( double ) dwTotalNumberOfClusters *
|
|
( double ) dwSectorsPerCluster *
|
|
( double ) dwBytesPerSector;
|
|
|
|
if( uiType == HB_DISK_USED )
|
|
dSpace -= ( double ) dwNumberOfFreeClusters *
|
|
( double ) dwSectorsPerCluster *
|
|
( double ) dwBytesPerSector;
|
|
break;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
SetErrorMode( uiErrMode );
|
|
|
|
if( GetLastError() != 0 )
|
|
{
|
|
if( hb_errRT_BASE_Ext1( EG_OPEN, 2018, NULL, NULL, 0, (EF_CANDEFAULT | EF_CANRETRY), 2, hb_paramError( 1 ), hb_paramError( 2 ) ) == E_RETRY )
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
#elif defined(HB_OS_OS2)
|
|
|
|
{
|
|
struct _FSALLOCATE fsa;
|
|
USHORT rc;
|
|
USHORT uiDrive = ( szPath[ 0 ] == '\0' ) ? 0 : ( toupper( szPath[ 0 ] ) - 'A' + 1 );
|
|
|
|
/* Query level 1 info from filesystem */
|
|
while( ( rc = DosQueryFSInfo( uiDrive, 1, &fsa, sizeof( fsa ) ) ) != 0 )
|
|
{
|
|
if( hb_errRT_BASE_Ext1( EG_OPEN, 2018, NULL, NULL, 0, (EF_CANDEFAULT | EF_CANRETRY), 2, hb_paramError( 1 ), hb_paramError( 2 ) ) != E_RETRY )
|
|
break;
|
|
}
|
|
|
|
if( rc == 0 )
|
|
{
|
|
switch( uiType )
|
|
{
|
|
case HB_DISK_AVAIL:
|
|
case HB_DISK_FREE:
|
|
dSpace = ( double ) fsa.cUnitAvail *
|
|
( double ) fsa.cSectorUnit *
|
|
( double ) fsa.cbSector;
|
|
break;
|
|
|
|
case HB_DISK_USED:
|
|
case HB_DISK_TOTAL:
|
|
dSpace = ( double ) fsa.cUnit *
|
|
( double ) fsa.cSectorUnit *
|
|
( double ) fsa.cbSector;
|
|
|
|
if( uiType == HB_DISK_USED )
|
|
dSpace -= ( double ) fsa.cUnitAvail *
|
|
( double ) fsa.cSectorUnit *
|
|
( double ) fsa.cbSector;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
#elif defined(HB_OS_UNIX)
|
|
|
|
{
|
|
struct statfs sf;
|
|
|
|
statfs( szPath, &sf );
|
|
|
|
switch( uiType )
|
|
{
|
|
case HB_DISK_AVAIL:
|
|
dSpace = ( double ) sf.f_bavail * ( double ) sf.f_bsize;
|
|
break;
|
|
|
|
case HB_DISK_FREE:
|
|
dSpace = ( double ) sf.f_bfree * ( double ) sf.f_bsize;
|
|
break;
|
|
|
|
case HB_DISK_USED:
|
|
dSpace = ( double ) ( sf.f_blocks - sf.f_bfree ) *
|
|
( double ) sf.f_bsize;
|
|
break;
|
|
|
|
case HB_DISK_TOTAL:
|
|
dSpace = ( double ) sf.f_blocks * ( double ) sf.f_bsize;
|
|
break;
|
|
}
|
|
}
|
|
|
|
#else
|
|
|
|
{
|
|
HB_SYMBOL_UNUSED( uiDrive );
|
|
HB_SYMBOL_UNUSED( uiType );
|
|
}
|
|
|
|
#endif
|
|
|
|
hb_retnlen( dSpace, -1, 0 );
|
|
}
|
|
|
|
#endif
|