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{
This file is part of the Free Pascal run time library.
Copyright (c) 2005 by Free Pascal development team
Low level file functions
GBA does not have any drive, so no file handling is needed.
Copyright (c) 2006 by Francesco Lombardi
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.
**********************************************************************}
{****************************************************************************
Low level File Routines
All these functions can set InOutRes on errors
****************************************************************************}
{ close a file from the handle value }
procedure do_close(handle : longint);
begin
end;
procedure do_erase(p : pchar; pchangeable: boolean);
begin
if assigned (@rtl_do_erase) then
rtl_do_erase(p);
end;
procedure do_rename(p1,p2 : pchar; p1changeable, p2changeable: boolean);
begin
if assigned (@rtl_do_rename) then
rtl_do_rename(p1, p2);
end;
function do_write(h: longint; addr: pointer; len: longint) : longint;
begin
if assigned (rtl_do_write) then
result := rtl_do_write(h, addr, len)
else
result := -1;
end;
function do_read(h: longint; addr: pointer; len: longint) : longint;
begin
if assigned (rtl_do_read) then
result := rtl_do_read(h, addr, len)
else
result := -1;
end;
function do_filepos(handle: longint) : longint;
begin
if assigned (rtl_do_filepos) then
result := rtl_do_filepos(handle)
else
result := -1;
end;
procedure do_seek(handle, pos: longint);
begin
if assigned (rtl_do_seek) then
rtl_do_seek(handle, pos);
end;
function do_seekend(handle: longint):longint;
begin
if assigned (rtl_do_seekend) then
result := rtl_do_seekend(handle)
else
result := -1;
end;
function do_filesize(handle : longint) : longint;
begin
result := -1;
if assigned (rtl_do_filesize) then
result := rtl_do_filesize(handle);
end;
{ truncate at a given position }
procedure do_truncate(handle, pos: longint);
begin
if assigned (rtl_do_truncate) then
rtl_do_truncate(handle, pos);
end;
procedure do_open(var f;p:PFileTextRecChar;flags:longint; pchangeable: boolean);
begin
if assigned (rtl_do_open) then
rtl_do_open(f, p, flags);
end;
function do_isdevice(handle: THandle): boolean;
begin
result := false;
if assigned (rtl_do_isdevice) then
result := rtl_do_isdevice(handle);
end;
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