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{
This file is part of the Free Pascal run time library.
Copyright (c) 2001-2005 by Free Pascal development team
Low level system functions for MacOS
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.
**********************************************************************}
{*********************** MacOS API *********************}
{This implementation uses StdCLib: }
{$define MACOS_USE_STDCLIB}
{Some MacOS API routines and StdCLib included for internal use:}
{$I macostp.inc}
{Note, because the System unit is the most low level, it should not
depend on any other units, and thus the macos api must be accessed
as an include file and not a unit.}
{The reason StdCLib is used is that it can easily be connected
to either SIOW or, in case of MPWTOOL, to MPW }
{If the Apples Universal Interfaces are used, the qd variable is required
to be allocated somewhere, so we do it here for the convenience to the user.}
var
qd: QDGlobals; cvar;
{$ifdef MACOS_USE_STDCLIB}
{************** API to StdCLib in MacOS ***************}
{The reason StdCLib is used is that it can easily be connected
to either SIOW or, in case of MPWTOOL, to MPW }
{$endif}
{*********************** Macutils *********************}
{And also include the same utilities as in the macutils.pp unit.}
var
{emulated working directory}
workingDirectorySpec: FSSpec; cvar;
{The above variable is also declared in macutils.pp as external. Declared }
{here to be available to macutils.inc and below in this file.}
{$I macutils.inc}
{******************************************************}
function GetAppFileLocation (var spec: FSSpec): Boolean;
{Requires >= System 7}
var
PSN: ProcessSerialNumber;
info: ProcessInfoRec;
appFileRefNum: Integer;
appName: Str255;
dummy: Mac_Handle;
begin
begin
PSN.highLongOfPSN := 0;
PSN.lowLongOfPSN := kCurrentProcess;
info.processInfoLength := SizeOf(info);
info.processName := nil;
info.processAppSpec := @spec;
if GetProcessInformation(PSN, info) = noErr then
begin
spec.name := '';
GetAppFileLocation := true;
end
else
GetAppFileLocation := false;
end
end;
Procedure Errno2InOutRes;
{
Convert ErrNo error to the correct InOutRes value.
It seems that some of the errno is, in macos,
used for other purposes than its original definition.
}
begin
if errno = 0 then { Else it will go through all the cases }
exit;
case Errno of
Sys_ENFILE,
Sys_EMFILE : Inoutres:=4;
Sys_ENOENT : Inoutres:=2;
Sys_EBADF : Inoutres:=6;
Sys_ENOMEM,
Sys_EFAULT : Inoutres:=217; //TODO Exchange to something better
Sys_EINVAL : Inoutres:=218; //TODO RTE 218 doesn't exist
Sys_EAGAIN,
Sys_ENOSPC : Inoutres:=101;
Sys_ENOTDIR : Inoutres:=3;
Sys_EPERM,
Sys_EROFS,
Sys_EEXIST,
Sys_EISDIR,
Sys_EINTR, //Happens when attempt to rename a file fails
Sys_EBUSY, //Happens when attempt to remove a locked file
Sys_EACCES,
Sys_EMLINK : Inoutres:=5; //Happens when attempt to remove open file
Sys_ENXIO : InOutRes:=152;
Sys_ESPIPE : InOutRes:=156; //Illegal seek
else
InOutRes := Integer(errno);//TODO Exchange to something better
end;
errno:=0;
end;
Procedure OSErr2InOutRes(err: OSErr);
begin
InOutRes:= MacOSErr2RTEerr(err);
end;
{*****************************************************************************
MacOS specific functions
*****************************************************************************}
var
defaultCreator: OSType = $4D505320; {'MPS ' MPW Shell}
//defaultCreator: OSType = $74747874; {'ttxt' Simple Text}
defaultFileType: OSType = $54455854; {'TEXT'}
procedure Yield;
begin
if StandAlone = 0 then
SpinCursor(1);
end;
procedure SetDefaultMacOSFiletype(ftype: ShortString);
begin
if Length(ftype) = 4 then
defaultFileType:= PLongWord(@ftype[1])^;
end;
procedure SetDefaultMacOSCreator(creator: ShortString);
begin
if Length(creator) = 4 then
defaultCreator:= PLongWord(@creator[1])^;
end;
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