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495cb55113
fpc/rtl/netware/system.pp
florian 495cb55113 + call to initvariantmanager inserted
2002-10-13 09:25:14 +00:00

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{
$Id$
This file is part of the Free Pascal run time library.
Copyright (c) 1999-2000 by the Free Pascal development team.
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.
**********************************************************************}
{ no stack check in system }
{$S-}
unit system;
interface
{$define StdErrToConsole}
{$ifdef SYSTEMDEBUG}
{$define SYSTEMEXCEPTIONDEBUG}
{$endif SYSTEMDEBUG}
{$ifdef i386}
{$define Set_i386_Exception_handler}
{$endif i386}
{ include system-independent routine headers }
{$I systemh.inc}
{Platform specific information}
const
LineEnding = #13#10;
LFNSupport = false; { ??? - that's how it was declared in dos.pp! }
DirectorySeparator = '\';
DriveSeparator = ':';
PathSeparator = ';';
{ FileNameCaseSensitive is defined separately below!!! }
type
{ the fields of this record are os dependent }
{ and they shouldn't be used in a program }
{ only the type TCriticalSection is important }
TRTLCriticalSection = packed record
SemaHandle : LONGINT;
SemaIsOpen : BOOLEAN;
end;
{ include threading stuff }
{$i threadh.inc}
{ include heap support headers }
{$I heaph.inc}
CONST
{ Default filehandles }
UnusedHandle : longint = -1;
StdInputHandle : longint = 0;
StdOutputHandle : longint = 0;
StdErrorHandle : longint = 0;
FileNameCaseSensitive : boolean = false;
sLineBreak = LineEnding;
DefaultTextLineBreakStyle : TTextLineBreakStyle = tlbsCRLF;
TYPE
TNWCheckFunction = procedure (var code : longint);
VAR
ArgC : INTEGER;
ArgV : ppchar;
NetwareCheckFunction : TNWCheckFunction;
NetwareMainThreadGroupID: longint;
CONST
envp : ppchar = nil; {dummy to make heaptrc happy}
PROCEDURE ConsolePrintf (FormatStr : PCHAR; Param : LONGINT); CDecl;
PROCEDURE ConsolePrintf3 (FormatStr : PCHAR; P1,P2,P3 : LONGINT); CDecl;
PROCEDURE ConsolePrintf (FormatStr : PCHAR); CDecl;
implementation
{ Indicate that stack checking is taken care by OS}
{$DEFINE NO_GENERIC_STACK_CHECK}
{ include system independent routines }
{$I system.inc}
{ some declarations for Netware API calls }
{$I nwsys.inc}
{$I errno.inc}
{procedure setup_arguments;
begin
end;
}
{procedure setup_environment;
begin
end;
}
procedure PASCALMAIN;external name 'PASCALMAIN';
procedure fpc_do_exit;external name 'FPC_DO_EXIT';
{*****************************************************************************
Startup
*****************************************************************************}
PROCEDURE nlm_main (_ArgC : LONGINT; _ArgV : ppchar); CDECL; [public,alias: '_nlm_main'];
BEGIN
ArgC := _ArgC;
ArgV := _ArgV;
PASCALMAIN;
END;
{$ifdef MT}
procedure CloseAllRemainingSemaphores; FORWARD;
procedure ReleaseThreadVars; FORWARD;
{$endif}
{*****************************************************************************
System Dependent Exit code
*****************************************************************************}
procedure FreeSbrkMem; forward;
var SigTermHandlerActive : boolean;
Procedure system_exit;
begin
{$ifdef MT}
CloseAllRemainingSemaphores;
ReleaseThreadVars;
{$endif}
FreeSbrkMem; { free memory allocated by heapmanager }
if not SigTermHandlerActive then
begin
if ExitCode <> 0 Then { otherwise we dont see runtime-errors }
PressAnyKeyToContinue;
_exit (ExitCode);
end;
end;
{*****************************************************************************
Stack check code
*****************************************************************************}
procedure int_stackcheck(stack_size:longint);[public,alias:'FPC_STACKCHECK'];
{
called when trying to get local stack if the compiler directive $S
is set this function must preserve esi !!!! because esi is set by
the calling proc for methods it must preserve all registers !!
With a 2048 byte safe area used to write to StdIo without crossing
the stack boundary
}
begin
IF _stackavail > stack_size + 2048 THEN EXIT;
HandleError (202);
end;
{*****************************************************************************
ParamStr/Randomize
*****************************************************************************}
{ number of args }
function paramcount : longint;
begin
paramcount := argc - 1;
end;
{ argument number l }
function paramstr(l : longint) : string;
begin
if (l>=0) and (l+1<=argc) then
paramstr:=strpas(argv[l])
else
paramstr:='';
end;
{ set randseed to a new pseudo random value }
procedure randomize;
begin
randseed := _time (NIL);
end;
{*****************************************************************************
Heap Management
*****************************************************************************}
{ first address of heap }
function getheapstart:pointer;
assembler;
asm
leal HEAP,%eax
end ['EAX'];
{ current length of heap }
function getheapsize:longint;
assembler;
asm
movl HEAPSIZE,%eax
end ['EAX'];
const HeapInitialMaxBlocks = 32;
type THeapSbrkBlockList = array [1.. HeapInitialMaxBlocks] of pointer;
var HeapSbrkBlockList : ^THeapSbrkBlockList = nil;
HeapSbrkLastUsed : dword = 0;
HeapSbrkAllocated : dword = 0;
{ function to allocate size bytes more for the program }
{ must return the first address of new data space or -1 if fail }
{ for netware all allocated blocks are saved to free them at }
{ exit (to avoid message "Module did not release xx resources") }
Function Sbrk(size : longint):longint;
var P,P2 : POINTER;
begin
P := _malloc (size);
if P = nil then
Sbrk := -1
else begin
Sbrk := LONGINT (P);
if HeapSbrkBlockList = nil then
begin
Pointer (HeapSbrkBlockList) := _malloc (sizeof (HeapSbrkBlockList^));
if HeapSbrkBlockList = nil then
begin
_free (P);
Sbrk := -1;
exit;
end;
fillchar (HeapSbrkBlockList^,sizeof(HeapSbrkBlockList^),0);
HeapSbrkAllocated := HeapInitialMaxBlocks;
end;
if (HeapSbrkLastUsed = HeapSbrkAllocated) then
begin { grow }
p2 := _realloc (HeapSbrkBlockList, HeapSbrkAllocated + HeapInitialMaxBlocks);
if p2 = nil then
begin
_free (P);
Sbrk := -1;
exit;
end;
inc (HeapSbrkAllocated, HeapInitialMaxBlocks);
end;
inc (HeapSbrkLastUsed);
HeapSbrkBlockList^[HeapSbrkLastUsed] := P;
end;
end;
procedure FreeSbrkMem;
var i : longint;
begin
if HeapSbrkBlockList <> nil then
begin
for i := 1 to HeapSbrkLastUsed do
_free (HeapSbrkBlockList^[i]);
_free (HeapSbrkBlockList);
HeapSbrkAllocated := 0;
HeapSbrkLastUsed := 0;
HeapSbrkBlockList := nil;
end;
end;
{ include standard heap management }
{$I heap.inc}
{****************************************************************************
Low level File Routines
All these functions can set InOutRes on errors
****************************************************************************}
PROCEDURE NW2PASErr (Err : LONGINT);
BEGIN
if Err = 0 then { Else it will go through all the cases }
exit;
case Err of
Sys_ENFILE,
Sys_EMFILE : Inoutres:=4;
Sys_ENOENT : Inoutres:=2;
Sys_EBADF : Inoutres:=6;
Sys_ENOMEM,
Sys_EFAULT : Inoutres:=217;
Sys_EINVAL : Inoutres:=218;
Sys_EPIPE,
Sys_EINTR,
Sys_EIO,
Sys_EAGAIN,
Sys_ENOSPC : Inoutres:=101;
Sys_ENAMETOOLONG,
Sys_ELOOP,
Sys_ENOTDIR : Inoutres:=3;
Sys_EROFS,
Sys_EEXIST,
Sys_EACCES : Inoutres:=5;
Sys_EBUSY : Inoutres:=162;
end;
END;
FUNCTION errno : LONGINT;
BEGIN
errno := __get_errno_ptr^;
END;
PROCEDURE Errno2Inoutres;
BEGIN
NW2PASErr (errno);
END;
PROCEDURE SetFileError (VAR Err : LONGINT);
BEGIN
IF Err >= 0 THEN
InOutRes := 0
ELSE
BEGIN
Err := errno;
NW2PASErr (Err);
Err := 0;
END;
END;
{ close a file from the handle value }
procedure do_close(handle : longint);
VAR res : LONGINT;
begin
res := _close (handle);
IF res <> 0 THEN
SetFileError (res)
ELSE
InOutRes := 0;
end;
procedure do_erase(p : pchar);
VAR res : LONGINT;
begin
res := _unlink (p);
IF Res < 0 THEN
SetFileError (res)
ELSE
InOutRes := 0;
end;
procedure do_rename(p1,p2 : pchar);
VAR res : LONGINT;
begin
res := _rename (p1,p2);
IF Res < 0 THEN
SetFileError (res)
ELSE
InOutRes := 0
end;
function do_write(h,addr,len : longint) : longint;
VAR res : LONGINT;
begin
res := _write (h,POINTER(addr),len);
IF res > 0 THEN
InOutRes := 0
ELSE
SetFileError (res);
do_write := res;
end;
function do_read(h,addr,len : longint) : longint;
VAR res : LONGINT;
begin
res := _read (h,POINTER(addr),len);
IF res > 0 THEN
InOutRes := 0
ELSE
SetFileError (res);
do_read := res;
end;
function do_filepos(handle : longint) : longint;
VAR res : LONGINT;
begin
InOutRes:=1;
res := _tell (handle);
IF res < 0 THEN
SetFileError (res)
ELSE
InOutRes := 0;
do_filepos := res;
end;
CONST SEEK_SET = 0; // Seek from beginning of file.
SEEK_CUR = 1; // Seek from current position.
SEEK_END = 2; // Seek from end of file.
procedure do_seek(handle,pos : longint);
VAR res : LONGINT;
begin
res := _lseek (handle,pos, SEEK_SET);
IF res >= 0 THEN
InOutRes := 0
ELSE
SetFileError (res);
end;
function do_seekend(handle:longint):longint;
VAR res : LONGINT;
begin
res := _lseek (handle,0, SEEK_END);
IF res >= 0 THEN
InOutRes := 0
ELSE
SetFileError (res);
do_seekend := res;
end;
function do_filesize(handle : longint) : longint;
VAR res : LONGINT;
begin
res := _filelength (handle);
IF res < 0 THEN
BEGIN
SetFileError (Res);
do_filesize := -1;
END ELSE
BEGIN
InOutRes := 0;
do_filesize := res;
END;
end;
{ truncate at a given position }
procedure do_truncate (handle,pos:longint);
VAR res : LONGINT;
begin
res := _chsize (handle,pos);
IF res <> 0 THEN
SetFileError (res)
ELSE
InOutRes := 0;
end;
// mostly stolen from syslinux
procedure do_open(var f;p:pchar;flags:longint);
{
filerec and textrec have both handle and mode as the first items so
they could use the same routine for opening/creating.
when (flags and $10) the file will be append
when (flags and $100) the file will be truncate/rewritten
when (flags and $1000) there is no check for close (needed for textfiles)
}
var
oflags : longint;
Begin
{ close first if opened }
if ((flags and $10000)=0) then
begin
case FileRec(f).mode of
fminput,fmoutput,fminout : Do_Close(FileRec(f).Handle);
fmclosed : ;
else
begin
inoutres:=102; {not assigned}
exit;
end;
end;
end;
{ reset file Handle }
FileRec(f).Handle:=UnusedHandle;
{ We do the conversion of filemodes here, concentrated on 1 place }
case (flags and 3) of
0 : begin
oflags := O_RDONLY;
filerec(f).mode := fminput;
end;
1 : begin
oflags := O_WRONLY;
filerec(f).mode := fmoutput;
end;
2 : begin
oflags := O_RDWR;
filerec(f).mode := fminout;
end;
end;
if (flags and $1000)=$1000 then
oflags:=oflags or (O_CREAT or O_TRUNC)
else
if (flags and $100)=$100 then
oflags:=oflags or (O_APPEND);
{ empty name is special }
if p[0]=#0 then
begin
case FileRec(f).mode of
fminput :
FileRec(f).Handle:=StdInputHandle;
fminout, { this is set by rewrite }
fmoutput :
FileRec(f).Handle:=StdOutputHandle;
fmappend :
begin
FileRec(f).Handle:=StdOutputHandle;
FileRec(f).mode:=fmoutput; {fool fmappend}
end;
end;
exit;
end;
{ real open call }
FileRec(f).Handle := _open(p,oflags,438);
//WriteLn ('_open (',p,') liefert ',ErrNo, 'Handle: ',FileRec(f).Handle);
// errno does not seem to be set on succsess ??
IF FileRec(f).Handle < 0 THEN
if (ErrNo=Sys_EROFS) and ((OFlags and O_RDWR)<>0) then
begin // i.e. for cd-rom
Oflags:=Oflags and not(O_RDWR);
FileRec(f).Handle := _open(p,oflags,438);
end;
IF FileRec(f).Handle < 0 THEN
Errno2Inoutres
ELSE
InOutRes := 0;
End;
function do_isdevice(handle:longint):boolean;
begin
do_isdevice := (_isatty (handle) > 0);
end;
{*****************************************************************************
UnTyped File Handling
*****************************************************************************}
{$i file.inc}
{*****************************************************************************
Typed File Handling
*****************************************************************************}
{$i typefile.inc}
{*****************************************************************************
Text File Handling
*****************************************************************************}
{ should we consider #26 as the end of a file ? }
{?? $DEFINE EOF_CTRLZ}
{$i text.inc}
{*****************************************************************************
Directory Handling
*****************************************************************************}
procedure mkdir(const s : string);[IOCheck];
VAR S2 : STRING;
Res: LONGINT;
BEGIN
S2 := S;
IF Length (S2) = 255 THEN DEC (BYTE(S2[0]));
S2 := S2 + #0;
Res := _mkdir (@S2[1]);
IF Res = 0 THEN
InOutRes:=0
ELSE
SetFileError (Res);
END;
procedure rmdir(const s : string);[IOCheck];
VAR S2 : STRING;
Res: LONGINT;
BEGIN
S2 := S;
IF Length (S2) = 255 THEN DEC (BYTE(S2[0]));
S2 := S2 + #0;
Res := _rmdir (@S2[1]);
IF Res = 0 THEN
InOutRes:=0
ELSE
SetFileError (Res);
end;
procedure chdir(const s : string);[IOCheck];
VAR S2 : STRING;
Res: LONGINT;
begin
S2 := S;
IF Length (S2) = 255 THEN DEC (BYTE(S2[0]));
S2 := S2 + #0;
Res := _chdir (@S2[1]);
IF Res = 0 THEN
InOutRes:=0
ELSE
SetFileError (Res);
end;
procedure getdir(drivenr : byte;var dir : shortstring);
VAR P : ARRAY [0..255] OF CHAR;
Len: LONGINT;
begin
P[0] := #0;
_getcwd (@P, SIZEOF (P));
Len := _strlen (P);
IF Len > 0 THEN
BEGIN
Move (P, dir[1], Len);
BYTE(dir[0]) := Len;
END ELSE
InOutRes := 1;
end;
{*****************************************************************************
Thread Handling
*****************************************************************************}
const
fpucw : word = $1332;
procedure InitFPU;assembler;
asm
fninit
fldcw fpucw
end;
{ include threading stuff, this is os dependend part }
{$I thread.inc}
{ if return-value is <> 0, netware shows the message
Unload Anyway ?
To Disable unload at all, SetNLMDontUnloadFlag can be used on
Netware >= 4.0 }
function CheckFunction : longint; CDECL; [public,alias: 'FPC_NW_CHECKFUNCTION'];
var oldTG:longint;
oldPtr: pointer;
begin
if assigned (NetwareCheckFunction) then
begin
{ this function is called without clib context, to allow clib
calls, we set the thread group id before calling the
user-function }
oldTG := _SetThreadGroupID (NetwareMainThreadGroupID);
{ to allow use of threadvars, we simply set the threadvar-memory
from the main thread }
oldPtr:= _GetThreadDataAreaPtr;
_SaveThreadDataAreaPtr (thredvarsmainthread);
result := 0;
NetwareCheckFunction (result);
_SaveThreadDataAreaPtr (oldPtr);
_SetThreadGroupID (oldTG);
end else
result := 0;
end;
{$ifdef StdErrToConsole}
var ConsoleBuff : array [0..512] of char;
Function ConsoleWrite(Var F: TextRec): Integer;
var
i : longint;
Begin
if F.BufPos>0 then
begin
if F.BufPos>sizeof(ConsoleBuff)-1 then
i:=sizeof(ConsoleBuff)-1
else
i:=F.BufPos;
Move(F.BufPtr^,ConsoleBuff,i);
ConsoleBuff[i] := #0;
ConsolePrintf(@ConsoleBuff[0]);
end;
F.BufPos:=0;
ConsoleWrite := 0;
End;
Function ConsoleClose(Var F: TextRec): Integer;
begin
ConsoleClose:=0;
end;
Function ConsoleOpen(Var F: TextRec): Integer;
Begin
TextRec(F).InOutFunc:=@ConsoleWrite;
TextRec(F).FlushFunc:=@ConsoleWrite;
TextRec(F).CloseFunc:=@ConsoleClose;
ConsoleOpen:=0;
End;
procedure AssignStdErrConsole(Var T: Text);
begin
Assign(T,'');
TextRec(T).OpenFunc:=@ConsoleOpen;
Rewrite(T);
end;
{$endif}
{ this will be called if the nlm is unloaded. It will NOT be
called if the program exits i.e. with halt.
Halt (or _exit) can not be called from this callback procedure }
procedure TermSigHandler (Sig:longint); CDecl;
var oldTG : longint;
oldPtr: pointer;
begin
oldTG := _SetThreadGroupID (NetwareMainThreadGroupID); { this is only needed for nw 3.11 }
{ _GetThreadDataAreaPtr will not be valid because the signal
handler is called by netware with a differnt thread. To avoid
problems in the exit routines, we set the data of the main thread
here }
oldPtr:= _GetThreadDataAreaPtr;
_SaveThreadDataAreaPtr (thredvarsmainthread);
SigTermHandlerActive := true; { to avoid that system_exit calls _exit }
do_exit; { calls finalize units }
_SaveThreadDataAreaPtr (oldPtr);
_SetThreadGroupID (oldTG);
end;
{*****************************************************************************
SystemUnit Initialization
*****************************************************************************}
Begin
StackBottom := SPtr - StackLength;
{$ifdef MT}
{ the exceptions use threadvars so do this _before_ initexceptions }
AllocateThreadVars;
{$endif MT}
SigTermHandlerActive := false;
NetwareCheckFunction := nil;
NetwareMainThreadGroupID := _GetThreadGroupID;
_Signal (_SIGTERM, @TermSigHandler);
{ Setup heap }
InitHeap;
InitExceptions;
{ Setup stdin, stdout and stderr }
StdInputHandle := _fileno (LONGINT (_GetStdIn^)); // GetStd** returns **FILE !
StdOutputHandle:= _fileno (LONGINT (_GetStdOut^));
StdErrorHandle := _fileno (LONGINT (_GetStdErr^));
OpenStdIO(Input,fmInput,StdInputHandle);
OpenStdIO(Output,fmOutput,StdOutputHandle);
OpenStdIO(StdOut,fmOutput,StdOutputHandle);
{$ifdef StdErrToConsole}
AssignStdErrConsole(StdErr);
{$else}
OpenStdIO(StdErr,fmOutput,StdErrorHandle);
{$endif}
{ Setup environment and arguments }
{Setup_Environment;
Setup_Arguments;
}
{ Reset IO Error }
InOutRes:=0;
{Delphi Compatible}
IsLibrary := FALSE;
IsConsole := TRUE;
ExitCode := 0;
{$ifdef HASVARIANT}
initvariantmanager;
{$endif HASVARIANT}
End.
{
$Log$
Revision 1.15 2002-10-13 09:28:45 florian
+ call to initvariantmanager inserted
Revision 1.14 2002/09/07 16:01:21 peter
* old logs removed and tabs fixed
Revision 1.13 2002/07/01 16:29:05 peter
* sLineBreak changed to normal constant like Kylix
Revision 1.12 2002/04/15 18:47:34 carl
+ reinstate novell stack checking
Revision 1.11 2002/04/12 17:40:11 carl
+ generic stack checking
Revision 1.10 2002/04/01 15:20:08 armin
+ unload module no longer shows: Module did not release...
+ check-function will no longer be removed when smartlink is on
Revision 1.9 2002/04/01 10:47:31 armin
makefile.fpc for netware
stderr to netware console
free all memory (threadvars and heap) to avoid error message while unloading nlm
Revision 1.8 2002/03/30 09:09:47 armin
+ support check-function for netware
Revision 1.7 2002/03/17 17:57:33 armin
+ threads and winsock2 implemented
}
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