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Comparing:
ibx/trunk/fbintf/client/FBClientAPI.pas (file contents), Revision 308 by tony, Sat Jul 18 10:26:30 2020 UTC vs.
ibx/branches/udr/client/FBClientAPI.pas (file contents), Revision 387 by tony, Wed Jan 19 13:34:42 2022 UTC

#	Line 76 | Line 76 | uses
76		Classes,
77		{$IFDEF WINDOWS}Windows, {$ENDIF}
78		{$IFDEF FPC} Dynlibs, {$ENDIF}
79	<	IB, IBHeader, FBActivityMonitor, FBMessages, IBExternals;
79	>	IB, IBHeader, FBActivityMonitor, FBMessages, IBExternals, FmtBCD;
80
81	<	{For Linux see result of GetFirebirdLibList method}
81	>	{For Linux see result of GetFirebirdLibListruntime/nongui/winipc.inc method}
82		{$IFDEF DARWIN}
83		const
84		FIREBIRD_SO2 = 'libfbclient.dylib';
#	Line 91 | Line 91 | FIREBIRD_EMBEDDED = 'fbembed.dll';
91		{$ENDIF}
92
93		const
94	+	{fb_shutdown reasons}
95	+	fb_shutrsn_svc_stopped          = -1;
96	+	fb_shutrsn_no_connection        = -2;
97	+	fb_shutrsn_app_stopped          = -3;
98	+	fb_shutrsn_signal               = -5;
99	+	fb_shutrsn_services             = -6;
100	+	fb_shutrsn_exit_called          = -7;
101	+
102	+	const
103	+	DefaultTimeZoneFile = '/etc/timezone';
104	+
105	+	const
106		IBLocalBufferLength = 512;
107		IBBigLocalBufferLength = IBLocalBufferLength * 2;
108		IBHugeLocalBufferLength = IBBigLocalBufferLength * 20;
#	Line 103 | Line 115 | type
115
116		{ TFBStatus }
117
118	<	TFBStatus = class(TFBInterfacedObject)
118	>	TFBStatus = class(TFBInterfacedObject, IStatus)
119		private
120		FIBDataBaseErrorMessages: TIBDataBaseErrorMessages;
121	+	FPrefix: AnsiString;
122	+	function SQLCodeSupported: boolean;
123		protected
124		FOwner: TFBClientAPI;
125	+	function GetIBMessage: Ansistring; virtual; abstract;
126	+	function GetSQLMessage: Ansistring;
127		public
128	<	constructor Create(aOwner: TFBClientAPI);
128	>	constructor Create(aOwner: TFBClientAPI; prefix: AnsiString='');
129		function StatusVector: PStatusVector; virtual; abstract;
130	+	procedure Assign(src: TFBStatus); virtual;
131	+	function Clone: IStatus; virtual; abstract;
132
133		{IStatus}
134	<	function GetIBErrorCode: Long;
135	<	function Getsqlcode: Long;
134	>	function GetIBErrorCode: TStatusCode;
135	>	function Getsqlcode: TStatusCode;
136		function GetMessage: AnsiString;
137		function CheckStatusVector(ErrorCodes: array of TFBStatusCode): Boolean;
138		function GetIBDataBaseErrorMessages: TIBDataBaseErrorMessages;
#	Line 127 | Line 145 | type
145		private
146		class var FEnvSetupDone: boolean;
147		class var FLibraryList: array of IFirebirdLibrary;
148	+	private
149		FFirebirdAPI: IFirebirdAPI;
150		FRequestedLibName: string;
151		function LoadIBLibrary: boolean;
#	Line 144 | Line 163 | type
163		destructor Destroy; override;
164		class function GetFBLibrary(aLibPathName: string): IFirebirdLibrary;
165		class procedure FreeLibraries;
166	+	function SameLibrary(aLibName: string): boolean;
167
168	+	public
169		{IFirebirdLibrary}
170		function GetHandle: TLibHandle;
171		function GetLibraryName: string;
#	Line 157 | Line 178 | type
178
179		TFBClientAPI = class(TFBInterfacedObject)
180		private
181	+	FLocalTimeZoneName: AnsiString; {Informal Time Zone Name from tzname e.g. GMT or BST}
182	+	FTZDataTimeZoneID: AnsiString; {TZData DB ID e.g. Europe/London}
183	+	FLocalTimeOffset: integer;
184	+	FIsDaylightSavingsTime: boolean;
185		class var FIBCS: TRTLCriticalSection;
186	+	function FBTimeStampToDateTime(aDate, aTime: longint): TDateTime;
187	+	procedure GetTZDataSettings;
188		protected
189		FFBLibrary: TFBLibrary;
190		function GetProcAddr(ProcName: PAnsiChar): Pointer;
191	+
192	+	protected type
193	+	Tfb_shutdown = function (timeout: uint;
194	+	const reason: int): int;
195	+	{$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
196	+	protected
197	+	{FB Shutdown API}
198	+	fb_shutdown: Tfb_shutdown;
199	+
200		public
201		{Taken from legacy API}
166	–	isc_sqlcode: Tisc_sqlcode;
202		isc_sql_interprete: Tisc_sql_interprete;
203	<	isc_event_counts: Tisc_event_counts;
169	<	isc_event_block: Tisc_event_block;
170	<	isc_free: Tisc_free;
203	>	isc_sqlcode: Tisc_sqlcode;
204
205		constructor Create(aFBLibrary: TFBLibrary);
206		procedure IBAlloc(var P; OldSize, NewSize: Integer);
207		procedure IBDataBaseError;
208		function LoadInterface: boolean; virtual;
209	+	procedure FBShutdown; virtual;
210		function GetAPI: IFirebirdAPI; virtual; abstract;
211		{$IFDEF UNIX}
212		function GetFirebirdLibList: string; virtual; abstract;
213		{$ENDIF}
214	+	function HasDecFloatSupport: boolean;
215	+	function HasInt128Support: boolean; virtual;
216	+	function HasLocalTZDB: boolean; virtual;
217	+	function HasExtendedTZSupport: boolean; virtual;
218	+	function HasTimeZoneSupport: boolean; virtual;
219
220	+	public
221	+	property LocalTimeZoneName: AnsiString read FLocalTimeZoneName;
222	+	property TZDataTimeZoneID: AnsiString read FTZDataTimeZoneID;
223	+	property LocalTimeOffset: integer read FLocalTimeOffset;
224	+	public
225		{Encode/Decode}
226	<	procedure EncodeInteger(aValue: integer; len: integer; buffer: PByte);
227	<	function DecodeInteger(bufptr: PByte; len: short): integer; virtual; abstract;
228	<	procedure SQLEncodeDate(aDate: TDateTime; bufptr: PByte); virtual; abstract;
229	<	function SQLDecodeDate(byfptr: PByte): TDateTime; virtual; abstract;
230	<	procedure SQLEncodeTime(aTime: TDateTime; bufptr: PByte); virtual; abstract;
226	>	procedure EncodeInteger(aValue: int64; len: integer; buffer: PByte);
227	>	function DecodeInteger(bufptr: PByte; len: short): int64;
228	>	procedure SQLEncodeDate(aDate: TDateTime; bufptr: PByte);  virtual; abstract;
229	>	function SQLDecodeDate(byfptr: PByte): TDateTime;  virtual; abstract;
230	>	procedure SQLEncodeTime(aTime: TDateTime; bufptr: PByte);  virtual; abstract;
231		function SQLDecodeTime(bufptr: PByte): TDateTime;  virtual; abstract;
232		procedure SQLEncodeDateTime(aDateTime: TDateTime; bufptr: PByte); virtual; abstract;
233	<	function SQLDecodeDateTime(bufptr: PByte): TDateTime; virtual; abstract;
234	<	function FormatStatus(Status: TFBStatus): AnsiString; virtual; abstract;
233	>	function  SQLDecodeDateTime(bufptr: PByte): TDateTime; virtual; abstract;
234	>	function Int128ToStr(bufptr: PByte; scale: integer): AnsiString; virtual;
235	>	procedure StrToInt128(scale: integer; aValue: AnsiString; bufptr: PByte);
236	>	virtual;
237	>	procedure SQLDecFloatEncode(aValue: tBCD; SQLType: cardinal; bufptr: PByte); virtual;
238	>	function SQLDecFloatDecode(SQLType: cardinal;  bufptr: PByte): tBCD; virtual;
239
240		{IFirebirdAPI}
241		function GetStatus: IStatus; virtual; abstract;
#	Line 197 | Line 245 | type
245		function GetImplementationVersion: AnsiString;
246		function GetClientMajor: integer;  virtual; abstract;
247		function GetClientMinor: integer;  virtual; abstract;
248	<	end;
248	>	end;
249	>
250	>	IJournallingHook = interface
251	>	['{7d3e45e0-3628-416a-9e22-c20474825031}']
252	>	procedure TransactionStart(Tr: ITransaction);
253	>	function TransactionEnd(TransactionID: integer; Completion: TTrCompletionState): boolean;
254	>	procedure TransactionRetained(Tr: ITransaction; OldTransactionID: integer; Action: TTransactionAction);
255	>	procedure ExecQuery(Stmt: IStatement);
256	>	procedure ExecImmediateJnl(sql: AnsiString; tr: ITransaction);
257	>	end;
258
259		implementation
260
261		uses IBUtils, Registry,
262	<	{$IFDEF Unix} initc, dl, {$ENDIF}
262	>	{$IFDEF Unix} unix, initc, dl, {$ENDIF}
263		{$IFDEF FPC}
264		{$IFDEF WINDOWS }
265		WinDirs,
#	Line 235 | Line 292 | end;
292
293		procedure TFBLibrary.FreeFBLibrary;
294		begin
295	+	(FFirebirdAPI as TFBClientAPI).FBShutdown;
296		if FIBLibrary <> NilHandle then
297		FreeLibrary(FIBLibrary);
298		FIBLibrary := NilHandle;
299	+	FFBLibraryName := '';
300		end;
301
302		function TFBLibrary.GetLibraryName: string;
#	Line 289 | Line 348 | end;
348
349		destructor TFBLibrary.Destroy;
350		begin
292	–	FFirebirdAPI := nil;
351		FreeFBLibrary;
352	+	FFirebirdAPI := nil;
353		inherited Destroy;
354		end;
355
#	Line 301 | Line 360 | begin
360		if aLibPathName <> '' then
361		begin
362		for i := 0 to Length(FLibraryList) - 1 do
363	<	if (FLibraryList[i] as TFBLibrary).FRequestedLibName = aLibPathName then
363	>	begin
364	>	if (FLibraryList[i] as TFBLibrary).SameLibrary(aLibPathName) then
365		begin
366		Result := FLibraryList[i];
367		Exit;
368		end;
369	+	end;
370		Result := Create(aLibPathName);
371		end;
372
#	Line 319 | Line 380 | begin
380		SetLength(FLibraryList,0);
381		end;
382
383	+	function TFBLibrary.SameLibrary(aLibName: string): boolean;
384	+	begin
385	+	Result := FRequestedLibName = aLibName;
386	+	end;
387	+
388		function TFBLibrary.GetHandle: TLibHandle;
389		begin
390		Result := FIBLibrary;
#	Line 330 | Line 396 | constructor TFBClientAPI.Create(aFBLibra
396		begin
397		inherited Create;
398		FFBLibrary := aFBLibrary;
399	+	GetTZDataSettings;
400		end;
401
402		procedure TFBClientAPI.IBAlloc(var P; OldSize, NewSize: Integer);
#	Line 345 | Line 412 | begin
412		raise EIBInterBaseError.Create(GetStatus);
413		end;
414
415	<	{Under Unixes, if using an embedded server then set up local TMP and LOCK Directories}
349	<
350	<	procedure TFBClientAPI.EncodeInteger(aValue: integer; len: integer; buffer: PByte);
415	>	procedure TFBClientAPI.EncodeInteger(aValue: int64; len: integer; buffer: PByte);
416		begin
417		while len > 0 do
418		begin
#	Line 358 | Line 423 | begin
423		end;
424		end;
425
426	+	(*
427	+	DecodeInteger is Translated from
428	+
429	+	SINT64 API_ROUTINE isc_portable_integer(const UCHAR* ptr, SSHORT length)
430	+	if (!ptr || length <= 0 || length > 8)
431	+	return 0;
432	+
433	+	SINT64 value = 0;
434	+	int shift = 0;
435	+
436	+	while (--length > 0)
437	+	{
438	+	value += ((SINT64) *ptr++) << shift;
439	+	shift += 8;
440	+	}
441	+
442	+	value += ((SINT64)(SCHAR) *ptr) << shift;
443	+
444	+	return value;
445	+	*)
446	+
447	+	function TFBClientAPI.DecodeInteger(bufptr: PByte; len: short): int64;
448	+	var shift: integer;
449	+	begin
450	+	Result := 0;
451	+	if (BufPtr = nil) or (len <= 0) or (len > 8) then
452	+	Exit;
453	+
454	+	shift := 0;
455	+	dec(len);
456	+	while len > 0 do
457	+	begin
458	+	Result := Result + (int64(bufptr^) shl shift);
459	+	Inc(bufptr);
460	+	shift := shift + 8;
461	+	dec(len);
462	+	end;
463	+	Result := Result + (int64(bufptr^) shl shift);
464	+	end;
465	+
466	+	function TFBClientAPI.Int128ToStr(bufptr: PByte; scale: integer): AnsiString;
467	+	begin
468	+	if not HasInt128Support then
469	+	IBError(ibxeNotSupported,[]);
470	+	end;
471	+
472	+	procedure TFBClientAPI.StrToInt128(scale: integer; aValue: AnsiString; bufptr: PByte);
473	+	begin
474	+	if not HasInt128Support then
475	+	IBError(ibxeNotSupported,[]);
476	+	end;
477	+
478	+	procedure TFBClientAPI.SQLDecFloatEncode(aValue: tBCD; SQLType: cardinal;
479	+	bufptr: PByte);
480	+	begin
481	+	if not HasDecFloatSupport then
482	+	IBError(ibxeNotSupported,[]);
483	+	end;
484	+
485	+	function TFBClientAPI.SQLDecFloatDecode(SQLType: cardinal; bufptr: PByte): tBCD;
486	+	begin
487	+	if not HasDecFloatSupport then
488	+	IBError(ibxeNotSupported,[]);
489	+	end;
490	+
491		function TFBClientAPI.IsLibraryLoaded: boolean;
492		begin
493		Result := FFBLibrary.IBLibrary <> NilHandle;
#	Line 368 | Line 498 | begin
498		Result := FFBLibrary;
499		end;
500
501	<	function TFBClientAPI.GetImplementationVersion: AnsiString;
501	>	function TFBClientAPI.FBTimeStampToDateTime(aDate, aTime: longint): TDateTime;
502		begin
503	<	Result := Format('%d.%d',[GetClientMajor,GetClientMinor]);
503	>	{aDate/aTime are in TTimestamp format but aTime is decimilliseconds}
504	>	aDate := aDate - DateDelta;
505	>	if aDate < 0 then
506	>	Result := trunc(aDate) - abs(frac(aTime / (MSecsPerDay*10)))
507	>	else
508	>	Result := trunc(aDate) + abs(frac(aTime / (MSecsPerDay*10)));
509	>	end;
510	>
511	>	{$IFDEF UNIX}
512	>
513	>	procedure TFBClientAPI.GetTZDataSettings;
514	>	var S: TStringList;
515	>	begin
516	>	FLocalTimeOffset := GetLocalTimeOffset;
517	>	{$if declared(Gettzname)}
518	>	FLocalTimeZoneName := Gettzname(tzdaylight);
519	>	{$else}
520	>	FLocalTimeZoneName := tzname[tzdaylight];
521	>	{$ifend}
522	>	FIsDaylightSavingsTime := tzdaylight;
523	>	if FileExists(DefaultTimeZoneFile) then
524	>	begin
525	>	S := TStringList.Create;
526	>	try
527	>	S.LoadFromFile(DefaultTimeZoneFile);
528	>	if S.Count > 0 then
529	>	FTZDataTimeZoneID := S[0];
530	>	finally
531	>	S.Free;
532	>	end;
533	>	end;
534		end;
535	+	{$ENDIF}
536	+
537	+	{$IFDEF WINDOWS}
538	+	procedure TFBClientAPI.GetTZDataSettings;
539	+	var TZInfo: TTimeZoneInformation;
540	+	begin
541	+	FIsDaylightSavingsTime := false;
542	+	{is there any way of working out the default TZData DB time zone ID under Windows?}
543	+	case GetTimeZoneInformation(TZInfo) of
544	+	TIME_ZONE_ID_UNKNOWN:
545	+	begin
546	+	FLocalTimeZoneName := '';
547	+	FLocalTimeOffset := 0;
548	+	end;
549	+	TIME_ZONE_ID_STANDARD:
550	+	begin
551	+	FLocalTimeZoneName := strpas(PWideChar(@TZInfo.StandardName));
552	+	FLocalTimeOffset := TZInfo.Bias;
553	+	end;
554	+	TIME_ZONE_ID_DAYLIGHT:
555	+	begin
556	+	FLocalTimeZoneName := strpas(PWideChar(@TZInfo.DaylightName));
557	+	FLocalTimeOffset := TZInfo.DayLightBias;
558	+	FIsDaylightSavingsTime := true;
559	+	end;
560	+	end;
561	+	end;
562	+	{$ENDIF}
563
564		function TFBClientAPI.GetProcAddr(ProcName: PAnsiChar): Pointer;
565		begin
566	<	Result := GetProcAddress(FFBLibrary.IBLibrary, ProcName);
566	>	Result := nil;
567	>	if assigned(FFBLibrary) and (FFBLibrary.IBLibrary <> NilHandle) then
568	>	Result := GetProcAddress(FFBLibrary.IBLibrary, ProcName);
569		if not Assigned(Result) then
570		raise Exception.CreateFmt(SFirebirdAPIFuncNotFound,[ProcName]);
571		end;
572
573	+	function TFBClientAPI.HasDecFloatSupport: boolean;
574	+	begin
575	+	Result := GetClientMajor >= 4;
576	+	end;
577	+
578	+	function TFBClientAPI.HasInt128Support: boolean;
579	+	begin
580	+	Result := false;
581	+	end;
582	+
583	+	function TFBClientAPI.HasLocalTZDB: boolean;
584	+	begin
585	+	Result := false;
586	+	end;
587	+
588	+	function TFBClientAPI.HasExtendedTZSupport: boolean;
589	+	begin
590	+	Result := false;
591	+	end;
592	+
593	+	function TFBClientAPI.HasTimeZoneSupport: boolean;
594	+	begin
595	+	Result := false;
596	+	end;
597	+
598	+	function TFBClientAPI.GetImplementationVersion: AnsiString;
599	+	begin
600	+	Result := Format('%d.%d',[GetClientMajor,GetClientMinor]);
601	+	end;
602	+
603		function TFBClientAPI.LoadInterface: boolean;
604		begin
605		isc_sqlcode := GetProcAddr('isc_sqlcode'); {do not localize}
606		isc_sql_interprete := GetProcAddr('isc_sql_interprete'); {do not localize}
607	<	isc_event_counts := GetProcAddr('isc_event_counts'); {do not localize}
608	<	isc_event_block := GetProcAddr('isc_event_block'); {do not localize}
609	<	isc_free := GetProcAddr('isc_free'); {do not localize}
610	<	Result := assigned(isc_free);
607	>	fb_shutdown := GetProcAddr('fb_shutdown'); {do not localize}
608	>	Result := true; {don't case if these fail to load}
609	>	end;
610	>
611	>	procedure TFBClientAPI.FBShutdown;
612	>	begin
613	>	if assigned(fb_shutdown) then
614	>	fb_shutdown(0,fb_shutrsn_exit_called);
615		end;
616
617		{ TFBStatus }
618
619	<	constructor TFBStatus.Create(aOwner: TFBClientAPI);
619	>	function TFBStatus.SQLCodeSupported: boolean;
620	>	begin
621	>	Result:= (FOwner <> nil) and assigned(FOwner.isc_sqlcode) and  assigned(FOwner.isc_sql_interprete);
622	>	end;
623	>
624	>	function TFBStatus.GetSQLMessage: Ansistring;
625	>	var local_buffer: array[0..IBHugeLocalBufferLength - 1] of AnsiChar;
626	>	begin
627	>	Result := '';
628	>	if (FOwner <> nil) and assigned(FOwner.isc_sql_interprete) then
629	>	begin
630	>	FOwner.isc_sql_interprete(Getsqlcode, local_buffer, sizeof(local_buffer));
631	>	Result := strpas(local_buffer);
632	>	end;
633	>	end;
634	>
635	>	constructor TFBStatus.Create(aOwner: TFBClientAPI; prefix: AnsiString);
636		begin
637		inherited Create;
638		FOwner := aOwner;
639	<	FIBDataBaseErrorMessages := [ShowSQLMessage, ShowIBMessage];
639	>	FPrefix := prefix;
640	>	FIBDataBaseErrorMessages := [ShowIBMessage];
641	>	end;
642	>
643	>	procedure TFBStatus.Assign(src: TFBStatus);
644	>	begin
645	>	FOwner := src.FOwner;
646	>	FPrefix := src.FPrefix;
647	>	SetIBDataBaseErrorMessages(src.GetIBDataBaseErrorMessages);
648		end;
649
650	<	function TFBStatus.GetIBErrorCode: Long;
650	>	function TFBStatus.GetIBErrorCode: TStatusCode;
651		begin
652		Result := StatusVector^[1];
653		end;
654
655	<	function TFBStatus.Getsqlcode: Long;
655	>	function TFBStatus.Getsqlcode: TStatusCode;
656		begin
657	<	with FOwner do
658	<	Result := isc_sqlcode(PISC_STATUS(StatusVector));
657	>	if (FOwner <> nil) and assigned(FOwner.isc_sqlcode) then
658	>	Result := FOwner.isc_sqlcode(PISC_STATUS(StatusVector))
659	>	else
660	>	Result := -999; {generic SQL Code}
661		end;
662
663		function TFBStatus.GetMessage: AnsiString;
664	<	var local_buffer: array[0..IBHugeLocalBufferLength - 1] of AnsiChar;
415	<	IBDataBaseErrorMessages: TIBDataBaseErrorMessages;
416	<	sqlcode: Long;
664	>	var IBDataBaseErrorMessages: TIBDataBaseErrorMessages;
665		begin
666	<	Result := '';
666	>	Result := FPrefix;
667		IBDataBaseErrorMessages := FIBDataBaseErrorMessages;
668	<	sqlcode := Getsqlcode;
669	<	if (ShowSQLCode in IBDataBaseErrorMessages) then
670	<	Result := Result + 'SQLCODE: ' + IntToStr(sqlcode); {do not localize}
671	<
672	<	Exclude(IBDataBaseErrorMessages, ShowSQLMessage);
673	<	if (ShowSQLMessage in IBDataBaseErrorMessages) then
674	<	begin
675	<	with FOwner do
676	<	isc_sql_interprete(sqlcode, local_buffer, sizeof(local_buffer));
677	<	if (ShowSQLCode in FIBDataBaseErrorMessages) then
678	<	Result := Result + CRLF;
431	<	Result := Result + strpas(local_buffer);
668	>	if SQLCodeSupported then
669	>	begin
670	>	if (ShowSQLCode in IBDataBaseErrorMessages) then
671	>	Result := Result + 'SQLCODE: ' + IntToStr(Getsqlcode); {do not localize}
672	>
673	>	if (ShowSQLMessage in IBDataBaseErrorMessages) then
674	>	begin
675	>	if ShowSQLCode in IBDataBaseErrorMessages then
676	>	Result := Result + LineEnding;
677	>	Result := Result + GetSQLMessage;
678	>	end;
679		end;
680
681		if (ShowIBMessage in IBDataBaseErrorMessages) then
682		begin
683	<	if (ShowSQLCode in IBDataBaseErrorMessages) or
437	<	(ShowSQLMessage in IBDataBaseErrorMessages) then
683	>	if Result <> FPrefix then
684		Result := Result + LineEnding;
685	<	Result := Result + LineEnding + FOwner.FormatStatus(self);
685	>	Result := Result + 'Engine Code: ' + IntToStr(GetIBErrorCode) + LineEnding + GetIBMessage;
686		end;
687		if (Result <> '') and (Result[Length(Result)] = '.') then
688		Delete(Result, Length(Result), 1);

Comparing:
ibx/trunk/fbintf/client/FBClientAPI.pas (property svn:eol-style), Revision 308 by tony, Sat Jul 18 10:26:30 2020 UTC vs.
ibx/branches/udr/client/FBClientAPI.pas (property svn:eol-style), Revision 387 by tony, Wed Jan 19 13:34:42 2022 UTC

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