diff --git a/src/engine/e_log.pas b/src/engine/e_log.pas
index b8a185020749e2743f246793b402b78be25bddc5..ef36fa599e51ee4e062a81e907e7b164d310dc00 100644 (file)
--- a/src/engine/e_log.pas
+++ b/src/engine/e_log.pas
+{$MODE DELPHI}
+{$R-}
+{ $DEFINE CBLOG}
unit e_log;
interface
SysUtils;
type
- TWriteMode=(WM_NEWFILE, WM_OLDFILE);
- TRecordCategory=(MSG_FATALERROR, MSG_WARNING, MSG_NOTIFY);
+ TWriteMode = (WM_NEWFILE, WM_OLDFILE);
+ TRecordCategory = (MSG_FATALERROR, MSG_WARNING, MSG_NOTIFY);
+
+
+procedure e_InitLog (fFileName: String; fWriteMode: TWriteMode);
+procedure e_WriteLog (TextLine: String; RecordCategory: TRecordCategory; WriteTime: Boolean=True);
+function DecodeIPV4 (ip: LongWord): string;
+
+
+// start Write/WriteLn driver. it will write everything to cbuf.
+procedure e_InitWritelnDriver ();
+
+
+var
+ e_WriteToStdOut: Boolean = False;
-procedure e_InitLog(fFileName: String; fWriteMode: TWriteMode);
-procedure e_WriteLog(TextLine: String; RecordCategory: TRecordCategory;
- WriteTime: Boolean = True);
-function DecodeIPV4(ip: LongWord): string;
implementation
+uses
+ conbuf;
+
+
var
FirstRecord: Boolean;
FileName: String;
+ driverInited: Boolean = false;
-{ TLog }
-function DecodeIPV4(ip: LongWord): string;
+function DecodeIPV4 (ip: LongWord): string;
begin
Result := Format('%d.%d.%d.%d', [ip and $FF, (ip shr 8) and $FF, (ip shr 16) and $FF, (ip shr 24)]);
end;
-procedure e_WriteLog(TextLine: String; RecordCategory: TRecordCategory;
- WriteTime: Boolean = True);
+
+procedure e_WriteLog (TextLine: String; RecordCategory: TRecordCategory; WriteTime: Boolean=True);
var
LogFile: TextFile;
- Prefix: ShortString;
+ Prefix: ShortString = '';
+ OutStr: String;
begin
+ if driverInited and (length(TextLine) > 0) then
+ begin
+ case RecordCategory of
+ MSG_FATALERROR: write('FATAL: ');
+ MSG_WARNING: write('WARNINIG: ');
+ end;
+ writeln(TextLine);
+ end;
+
if FileName = '' then Exit;
Assign(LogFile, FileName);
- if FileExists(FileName) then
- Append(LogFile)
- else
- Rewrite(LogFile);
- if FirstRecord then
- begin
- Writeln(LogFile, '--- Log started at '+TimeToStr(Time)+' ---');
- FirstRecord := False;
- end;
- case RecordCategory of
- MSG_FATALERROR: Prefix := '!!!';
- MSG_WARNING: Prefix := '! ';
- MSG_NOTIFY: Prefix := '***';
+ try
+ if FileExists(FileName) then
+ Append(LogFile)
+ else
+ Rewrite(LogFile);
+ try
+ if FirstRecord then
+ begin
+ Writeln(LogFile, '--- Log started at '+TimeToStr(Time)+' ---');
+ FirstRecord := False;
+ end;
+ case RecordCategory of
+ MSG_FATALERROR: Prefix := '!!!';
+ MSG_WARNING: Prefix := '! ';
+ MSG_NOTIFY: Prefix := '***';
+ end;
+ if WriteTime then
+ OutStr := '['+TimeToStr(Time)+'] '+Prefix+' '+TextLine
+ else
+ OutStr := Prefix+' '+TextLine;
+ Writeln(LogFile, OutStr);
+ if e_WriteToStdOut then
+ Writeln(OutStr);
+ finally
+ Close(LogFile);
+ end;
+ except // sorry
end;
- if WriteTime then
- Writeln(LogFile, '['+TimeToStr(Time)+'] '+Prefix+' '+TextLine)
- else
- Writeln(LogFile, Prefix+' '+TextLine);
- Close(LogFile);
end;
-procedure e_InitLog(fFileName: String; fWriteMode: TWriteMode);
+
+procedure e_InitLog (fFileName: String; fWriteMode: TWriteMode);
begin
FileName := fFileName;
if fWriteMode = WM_NEWFILE then
- if FileExists(FileName) then
- DeleteFile(FileName);
+ begin
+ try
+ if FileExists(FileName) then DeleteFile(FileName);
+ except // sorry
+ end;
+ end;
FirstRecord := True;
end;
+
+// ////////////////////////////////////////////////////////////////////////// //
+(* Write/WriteLn driver *)
+//
+// control codes:
+// CR, LF, BS
+// TAB: tab space = 4
+//
+// userData[1]: current x (for tabs)
+// userData[2]: #13 was eaten, we should skip next #10
+//
+type
+ TDevFunc = function (var f: TTextRec): Integer;
+
+const
+ udX = 1;
+ udWasCR = 2;
+
+
+procedure ProcessOutput (var tf: TTextRec; buf: PChar; count: Integer);
+var
+ wcr: Boolean;
+ ep: PChar;
+ f, x: Integer;
+ ch: Char;
+begin
+ x := tf.userData[udX];
+ wcr := (tf.userData[udWasCR] <> 0);
+ while count > 0 do
+ begin
+ // look for some special char
+ ep := buf;
+ f := 0;
+ while f < count do
+ begin
+ ch := ep^;
+ if (ch = #13) or (ch = #10) or (ch = #9) or (ch = #8) then break;
+ Inc(ep);
+ Inc(f);
+{$IFDEF CBLOG}
+ write(stderr, ch);
+{$ENDIF}
+ end;
+ if f > 0 then
+ begin
+ wcr := false;
+ cbufPutChars(buf, f);
+ Inc(buf, f);
+ Dec(count, f);
+ Inc(x, f);
+ continue;
+ end;
+ // process special chars
+ ch := buf^;
+ Inc(buf);
+ Dec(count);
+ // tab
+ if ch = #9 then
+ begin
+{$IFDEF CBLOG}
+ write(stderr, ch);
+{$ENDIF}
+ repeat
+ cbufPut(' ');
+ Inc(x);
+ until (x mod 4) = 0;
+ continue;
+ end;
+ // cr, lf
+ if (ch = #13) or (ch = #10) then
+ begin
+{$IFDEF CBLOG}
+ writeln(stderr);
+{$ENDIF}
+ if not wcr or (ch <> #10) then
+ begin
+ wcr := (ch = #13);
+ x := 0;
+ cbufPut(#10);
+ end;
+ continue;
+ end;
+ end;
+ tf.userData[udX] := x;
+ tf.userData[udWasCR] := ord(wcr);
+end;
+
+
+function DevOpen (var f: TTextRec): Integer;
+begin
+ f.userData[udX] := 0;
+ f.userData[udWasCR] := 0;
+ f.bufPos := 0;
+ f.bufEnd := 0;
+ result := 0;
+end;
+
+function DevInOut (var f: TTextRec): Integer;
+var
+ buf: PChar;
+ sz: Integer;
+begin
+ result := 0;
+ buf := Pointer(f.BufPtr);
+ sz := f.BufPos;
+ if sz > 0 then ProcessOutput(f, buf, sz);
+ f.bufPos := 0;
+ f.bufEnd := 0;
+end;
+
+function DevFlush (var f: TTextRec): Integer;
+begin
+ result := DevInOut(f);
+end;
+
+function DevClose (var f: TTextRec): Integer;
+begin
+ result := 0;
+end;
+
+
+procedure e_InitWritelnDriver ();
+begin
+ if not driverInited then
+ begin
+ driverInited := true;
+ with TTextRec(output) do
+ begin
+ Mode := fmClosed;
+ if BufPtr = nil then
+ begin
+ BufSize := SizeOf(Buffer);
+ BufPtr := @Buffer;
+ end;
+ OpenFunc := @DevOpen;
+ InOutFunc := @DevInOut;
+ FlushFunc := @DevFlush;
+ CloseFunc := @DevClose;
+ Name[0] := #0;
+ end;
+ Rewrite(output);
+ end;
+end;
+
+
+begin
+ //e_InitWritelnDriver();
end.