mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-06-20 19:18:37 +02:00
140 lines
3.4 KiB
PHP
140 lines
3.4 KiB
PHP
|
|
{
|
|
$Id$
|
|
Copyright (c) 2001 by the Freepascal development team
|
|
|
|
Objects unit OS specific implementation
|
|
|
|
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.
|
|
|
|
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.
|
|
|
|
****************************************************************************
|
|
}
|
|
|
|
{$i errno.inc}
|
|
{$i osposixh.inc}
|
|
{$i osposix.inc}
|
|
const
|
|
{ read/write permission for everyone }
|
|
MODE_OPEN = S_IWUSR OR S_IRUSR OR
|
|
S_IWGRP OR S_IRGRP OR
|
|
S_IWOTH OR S_IROTH;
|
|
|
|
|
|
FUNCTION FileOpen (Var FileName: AsciiZ; Mode: Word): THandle;
|
|
|
|
Var FileMode : cint;
|
|
|
|
BEGIN
|
|
FileMode:=0;
|
|
if Mode=stCreate then
|
|
Begin
|
|
FileMode:=O_CREAT;
|
|
FileMode:=FileMode or O_RDWR;
|
|
end
|
|
else
|
|
Begin
|
|
Case (Mode and 3) of
|
|
0 : FileMode:=FileMode or O_RDONLY;
|
|
1 : FileMode:=FileMode or O_WRONLY;
|
|
2 : FileMode:=FileMode or O_RDWR;
|
|
end;
|
|
end;
|
|
FileOpen:=sys_open (pchar(@FileName[0]),FileMode,MODE_OPEN);
|
|
if (ErrNo=Sys_EROFS) and ((FileMode and O_RDWR)<>0) then
|
|
begin
|
|
FileMode:=FileMode and not(O_RDWR);
|
|
FileOpen:=sys_open(pchar(@FileName[0]),Filemode,MODE_OPEN);
|
|
end;
|
|
If FileOpen=-1 then
|
|
FileOpen:=0;
|
|
DosStreamError:=Errno;
|
|
END;
|
|
|
|
FUNCTION FileRead (Handle: THandle; Var BufferArea; BufferLength: Sw_Word;
|
|
Var BytesMoved: Sw_Word): word;
|
|
var result : cint;
|
|
BEGIN
|
|
repeat
|
|
result:=Sys_read (Handle,pchar(@BufferArea),BufferLength);
|
|
until errno<>Sys_EINTR;
|
|
if result = -1 then
|
|
BytesMoved := 0
|
|
else
|
|
BytesMoved := result;
|
|
DosStreamError:=Errno;
|
|
FileRead:=Errno;
|
|
END;
|
|
|
|
FUNCTION FileWrite (Handle: THandle; Var BufferArea; BufferLength: Sw_Word;
|
|
Var BytesMoved: Sw_Word): Word;
|
|
var result: cint;
|
|
BEGIN
|
|
repeat
|
|
result:=Sys_Write (Handle,pchar(@BufferArea),BufferLength);
|
|
until errno<>Sys_EINTR;
|
|
if result = -1 then
|
|
BytesMoved := 0
|
|
else
|
|
BytesMoved := result;
|
|
FileWrite:=Errno;
|
|
DosStreamError:=Errno;
|
|
END;
|
|
|
|
FUNCTION SetFilePos (Handle: THandle; Pos: LongInt; MoveType: Word;
|
|
VAR NewPos: LongInt): Word;
|
|
|
|
var
|
|
whence : cint;
|
|
BEGIN
|
|
whence := SEEK_SET;
|
|
case MoveType of
|
|
1 : whence := SEEK_CUR;
|
|
2 : whence := SEEK_END;
|
|
end;
|
|
NewPos:=Sys_LSeek (Handle,Pos,whence);
|
|
SetFilePos:=Errno;
|
|
END;
|
|
|
|
FUNCTION FileClose (Handle: THandle): Word;
|
|
BEGIN
|
|
Sys_Close (Handle);
|
|
DosStreamError:=Errno;
|
|
FileClose := Errno;
|
|
END;
|
|
|
|
FUNCTION SetFileSize (Handle: THandle; FileSize: LongInt): Word;
|
|
var
|
|
Actual : longint;
|
|
BEGIN
|
|
SetFilePos(Handle,FileSize,0,Actual);
|
|
If (Actual = FileSize) Then
|
|
Begin
|
|
if (Sys_FTruncate(Handle,Filesize)=-1) then
|
|
SetFileSize:=103
|
|
else
|
|
SetFileSize:=0;
|
|
end;
|
|
END;
|
|
|
|
{
|
|
$Log$
|
|
Revision 1.2 2002-08-10 13:42:36 marco
|
|
* Fixes Posix dir copied to devel branch
|
|
|
|
Revision 1.1.2.1 2001/08/13 05:54:54 carl
|
|
+ objects unit implementation based on POSIX
|
|
|
|
}
|