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{
$Id: disk.inc,v 1.4 1999/04/26 09:34:32 peter Exp $
This file is part of the Free Pascal run time library.
Copyright (c) 1998 by the Free Pascal development team
Disk functions from Delphi's sysutils.pas
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
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.
**********************************************************************}
{
The Diskfree and Disksize functions need a file on the specified drive, since this
is required for the statfs system call.
These filenames are set in drivestr[0..26], and have been preset to :
0 - '.' (default drive - hence current dir is ok.)
1 - '/fd0/.' (floppy drive 1 - should be adapted to local system )
2 - '/fd1/.' (floppy drive 2 - should be adapted to local system )
3 - '/' (C: equivalent of dos is the root partition)
4..26 (can be set by your own applications)
! Use AddDisk() to Add new drives !
They both return -1 when a failure occurs.
}
Const
FixDriveStr : array[0..3] of pchar=(
'.',
'/fd0/.',
'/fd1/.',
'/.'
);
var
Drives : byte;
DriveStr : array[4..26] of pchar;
Procedure AddDisk(const path:string);
begin
if not (DriveStr[Drives]=nil) then
FreeMem(DriveStr[Drives],StrLen(DriveStr[Drives])+1);
GetMem(DriveStr[Drives],length(Path)+1);
StrPCopy(DriveStr[Drives],path);
inc(Drives);
if Drives>26 then
Drives:=4;
end;
Function DiskFree(Drive: Byte): Longint;
var
fs : statfs;
Begin
if ((Drive<4) and (not (fixdrivestr[Drive]=nil)) and fsstat(StrPas(fixdrivestr[drive]),fs)) or
((not (drivestr[Drive]=nil)) and fsstat(StrPas(drivestr[drive]),fs)) then
Diskfree:=fs.bavail*fs.bsize
else
Diskfree:=-1;
End;
Function DiskSize(Drive: Byte): Longint;
var
fs : statfs;
Begin
if ((Drive<4) and (not (fixdrivestr[Drive]=nil)) and fsstat(StrPas(fixdrivestr[drive]),fs)) or
((not (drivestr[Drive]=nil)) and fsstat(StrPas(drivestr[drive]),fs)) then
DiskSize:=fs.blocks*fs.bsize
else
DiskSize:=-1;
End;
Function GetCurrentDir : String;
begin
GetDir (0,Result);
end;
Function SetCurrentDir (Const NewDir : String) : Boolean;
begin
{$I-}
ChDir(NewDir);
result := (IOResult = 0);
{$I+}
end;
Function CreateDir (Const NewDir : String) : Boolean;
begin
{$I-}
MkDir(NewDir);
result := (IOResult = 0);
{$I+}
end;
Function RemoveDir (Const Dir : String) : Boolean;
begin
{$I-}
RmDir(Dir);
result := (IOResult = 0);
{$I+}
end;
{
$Log: disk.inc,v $
Revision 1.4 1999/04/26 09:34:32 peter
* fixed diskfree,disksize
* dir functions now return error status instead of true
Revision 1.3 1999/04/26 07:40:40 michael
+ Fixed removedir
Revision 1.2 1999/04/08 11:31:00 peter
* removed warnings
Revision 1.1 1998/10/11 13:42:04 michael
+ Added disk and directory functions
}
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