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{
This file is part of the Free Pascal run time library.
Copyright (c) 2001 by Free Pascal development team
This file implements all the base types and limits required
for a minimal POSIX compliant subset required to port the compiler
to a new OS.
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.
**********************************************************************}
const clib = 'c';
type libcint=longint;
plibcint=^libcint;
function geterrnolocation: Plibcint; cdecl;external clib name '___errno';
function geterrno:libcint; [public, alias: 'FPC_SYS_GETERRNO'];
begin
geterrno:=geterrnolocation^;
end;
procedure seterrno(err:libcint); [public, alias: 'FPC_SYS_SETERRNO'];
begin
geterrnolocation^:=err;
end;
{ OS dependant parts }
{$I errno.inc} // error numbers
{$I ostypes.inc} // c-types, unix base types, unix base structures
{$I osmacro.inc}
{$Linklib c}
{$i oscdeclh.inc}
{$i oscdecl.inc}
{*****************************************************************************
Error conversion
*****************************************************************************}
Function PosixToRunError (PosixErrno : longint) : longint;
{
Convert ErrNo error to the correct Inoutres value
}
begin
if PosixErrNo=0 then { Else it will go through all the cases }
exit(0);
case PosixErrNo of
ESysENFILE,
ESysEMFILE : Inoutres:=4;
ESysENOENT : Inoutres:=2;
ESysEBADF : Inoutres:=6;
ESysENOMEM,
ESysEFAULT : Inoutres:=217;
ESysEINVAL : Inoutres:=218;
ESysEPIPE,
ESysEINTR,
ESysEIO,
ESysEAGAIN,
ESysENOSPC : Inoutres:=101;
ESysENAMETOOLONG : Inoutres := 3;
ESysEROFS,
ESysEEXIST,
ESysENOTEMPTY,
ESysEACCES : Inoutres:=5;
ESysEISDIR : InOutRes:=5;
else
begin
InOutRes := Integer(PosixErrno);
end;
end;
PosixToRunError:=InOutRes;
end;
Function Errno2InoutRes : longint;
begin
Errno2InoutRes:=PosixToRunError(getErrno);
InoutRes:=Errno2InoutRes;
end;
{*****************************************************************************
Low Level File Routines
*****************************************************************************}
function do_isdevice(handle:longint):boolean;
begin
do_isdevice:= (handle=StdInputHandle) or
(handle=StdOutputHandle) or
(handle=StdErrorHandle);
end;
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