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root/public/ibx/trunk/runtime/IBDatabase.pas

Comparing ibx/trunk/runtime/IBDatabase.pas (file contents):
Revision 35 by tony, Tue Jan 26 14:38:47 2016 UTC vs.
Revision 47 by tony, Mon Jan 9 15:31:51 2017 UTC

#	Line 35 | Line 35 | unit IBDatabase;
35
36		{$Mode Delphi}
37
38	+	{$codepage UTF8}
39	+
40		interface
41
42		uses
#	Line 43 | Line 45 | uses
45		{$ELSE}
46		unix,
47		{$ENDIF}
48	<	SysUtils, Classes, FPTimer, IBHeader, IBExternals, DB,
47	<	IB, CustApp;
48	>	SysUtils, Classes, FPTimer, IBExternals, DB, IB, CustApp, IBTypes;
49
50		const
51		DPBPrefix = 'isc_dpb_';
#	Line 115 | Line 116 | const
116		'set_db_readonly',
117		'set_db_sql_dialect',
118		'gfix_attach',
119	<	'gstat_attach'
119	>	'gstat_attach',
120	>	'set_db_charset',
121	>	'gsec_attach',
122	>	'address_path' ,
123	>	'process_id',
124	>	'no_db_triggers',
125	>	'trusted_auth',
126	>	'process_name',
127	>	'trusted_role',
128	>	'org_filename',
129	>	'utf8_ilename',
130	>	'ext_call_depth'
131		);
132
133		TPBPrefix = 'isc_tpb_';
#	Line 139 | Line 151 | const
151		'rec_version',
152		'no_rec_version',
153		'restart_requests',
154	<	'no_auto_undo'
154	>	'no_auto_undo',
155	>	'lock_timeout'
156		);
157
158		type
#	Line 155 | Line 168 | type
168		{ TIBDatabase }
169		TIBDataBase = class(TCustomConnection)
170		private
171	+	FAttachment: IAttachment;
172	+	FCreateDatabase: boolean;
173	+	FCreateIfNotExists: boolean;
174	+	FDefaultCharSetID: integer;
175	+	FDefaultCharSetName: RawByteString;
176	+	FDefaultCodePage: TSystemCodePage;
177	+	FDPB: IDPB;
178		FAllowStreamedConnected: boolean;
179		FHiddenPassword: string;
180	<	FIBLoaded: Boolean;
180	>	FOnCreateDatabase: TNotifyEvent;
181		FOnLogin: TIBDatabaseLoginEvent;
182		FSQLHourGlass: Boolean;
183		FTraceFlags: TTraceFlags;
184		FDBSQLDialect: Integer;
185		FSQLDialect: Integer;
186		FOnDialectDowngradeWarning: TNotifyEvent;
167	–	FCanTimeout: Boolean;
187		FSQLObjects: TList;
188		FTransactions: TList;
189		FDBName: TIBFileName;
190		FDBParams: TStrings;
191		FDBParamsChanged: Boolean;
173	–	FDPB: PChar;
174	–	FDPBLength: Short;
175	–	FHandle: TISC_DB_HANDLE;
176	–	FHandleIsShared: Boolean;
192		FOnIdleTimer: TNotifyEvent;
193		FDefaultTransaction: TIBTransaction;
194		FInternalTransaction: TIBTransaction;
180	–	FStreamedConnected: Boolean;
195		FTimer: TFPTimer;
196		FUserNames: TStringList;
197		FDataSets: TList;
198		FLoginCalled: boolean;
199	<	FCharSetSizes: array of integer;
186	<	FCharSetNames: array of string;
199	>	FUseDefaultSystemCodePage: boolean;
200		procedure EnsureInactive;
201		function GetDBSQLDialect: Integer;
202		function GetSQLDialect: Integer;
#	Line 193 | Line 206 | type
206		procedure DBParamsChanging(Sender: TObject);
207		function GetSQLObject(Index: Integer): TIBBase;
208		function GetSQLObjectCount: Integer;
196	–	function GetDBParamByDPB(const Idx: Integer): String;
209		function GetIdleTimer: Integer;
210		function GetTransaction(Index: Integer): TIBTransaction;
211		function GetTransactionCount: Integer;
212	<	function Login: Boolean;
201	<	procedure LoadCharSetInfo;
212	>	function Login(var aDatabaseName: string): Boolean;
213		procedure SetDatabaseName(const Value: TIBFileName);
214		procedure SetDBParamByDPB(const Idx: Integer; Value: String);
215		procedure SetDBParams(Value: TStrings);
#	Line 229 | Line 240 | type
240		procedure CloseDataSets;
241		procedure CheckActive;
242		procedure CheckInactive;
243	<	procedure CreateDatabase;
243	>	procedure CreateDatabase; overload;
244	>	procedure CreateDatabase(createDatabaseSQL: string); overload;
245		procedure DropDatabase;
246		procedure ForceClose;
247		procedure GetFieldNames(const TableName: string; List: TStrings);
#	Line 237 | Line 249 | type
249		function IndexOfDBConst(st: String): Integer;
250		function TestConnected: Boolean;
251		procedure CheckDatabaseName;
240	–	function Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
252		function AddTransaction(TR: TIBTransaction): Integer;
253		function FindTransaction(TR: TIBTransaction): Integer;
254		function FindDefaultTransaction(): TIBTransaction;
255		procedure RemoveTransaction(Idx: Integer);
256		procedure RemoveTransactions;
246	–	procedure SetHandle(Value: TISC_DB_HANDLE);
257
258	<	property Handle: TISC_DB_HANDLE read FHandle;
258	>	property Attachment: IAttachment read FAttachment;
259	>	property DBSQLDialect : Integer read FDBSQLDialect;
260		property IsReadOnly: Boolean read GetIsReadOnly;
250	–	property DBParamByDPB[const Idx: Integer]: String read GetDBParamByDPB
251	–	write SetDBParamByDPB;
261		property SQLObjectCount: Integer read GetSQLObjectCount;
262		property SQLObjects[Index: Integer]: TIBBase read GetSQLObject;
254	–	property HandleIsShared: Boolean read FHandleIsShared;
263		property TransactionCount: Integer read GetTransactionCount;
264		property Transactions[Index: Integer]: TIBTransaction read GetTransaction;
265		property InternalTransaction: TIBTransaction read FInternalTransaction;
266	+	property DefaultCharSetName: RawByteString read FDefaultCharSetName;
267	+	property DefaultCharSetID: integer read FDefaultCharSetID;
268	+	property DefaultCodePage: TSystemCodePage read FDefaultCodePage;
269
270		published
271		property Connected;
272	+	property CreateIfNotExists: boolean read FCreateIfNotExists write FCreateIfNotExists;
273		property AllowStreamedConnected: boolean read FAllowStreamedConnected
274		write FAllowStreamedConnected;
275		property DatabaseName: TIBFileName read FDBName write SetDatabaseName;
#	Line 268 | Line 280 | type
280		property IdleTimer: Integer read GetIdleTimer write SetIdleTimer;
281		property SQLDialect : Integer read GetSQLDialect write SetSQLDialect default 3;
282		property SQLHourGlass: Boolean read FSQLHourGlass write FSQLHourGlass default true;
271	–	property DBSQLDialect : Integer read FDBSQLDialect;
283		property TraceFlags: TTraceFlags read FTraceFlags write FTraceFlags;
284	+	property UseDefaultSystemCodePage: boolean read FUseDefaultSystemCodePage
285	+	write FUseDefaultSystemCodePage;
286		property AfterConnect;
287		property AfterDisconnect;
288		property BeforeConnect;
289		property BeforeDisconnect;
290	+	property OnCreateDatabase: TNotifyEvent read FOnCreateDatabase write FOnCreateDatabase;
291		property OnLogin: TIBDatabaseLoginEvent read FOnLogin write FOnLogin;
292		property OnIdleTimer: TNotifyEvent read FOnIdleTimer write FOnIdleTimer;
293		property OnDialectDowngradeWarning: TNotifyEvent read FOnDialectDowngradeWarning write FOnDialectDowngradeWarning;
294		end;
295
296	<	{ TIBTransaction }
296	>	TDefaultEndAction = TARollback..TACommit;
297
298	<	TTransactionAction         = (TARollback, TACommit, TARollbackRetaining, TACommitRetaining);
298	>	{ TIBTransaction }
299
300		TIBTransaction = class(TComponent)
301		private
302	+	FTransactionIntf: ITransaction;
303		FAfterDelete: TNotifyEvent;
304		FAfterEdit: TNotifyEvent;
305		FAfterExecQuery: TNotifyEvent;
#	Line 292 | Line 307 | type
307		FAfterPost: TNotifyEvent;
308		FAfterTransactionEnd: TNotifyEvent;
309		FBeforeTransactionEnd: TNotifyEvent;
295	–	FIBLoaded: Boolean;
296	–	FCanTimeout         : Boolean;
310		FDatabases          : TList;
311		FOnStartTransaction: TNotifyEvent;
312		FSQLObjects         : TList;
313		FDefaultDatabase    : TIBDatabase;
301	–	FHandle             : TISC_TR_HANDLE;
302	–	FHandleIsShared     : Boolean;
314		FOnIdleTimer          : TNotifyEvent;
315		FStreamedActive     : Boolean;
316	<	FTPB                : PChar;
306	<	FTPBLength          : Short;
316	>	FTPB                : ITPB;
317		FTimer              : TFPTimer;
318	<	FDefaultAction      : TTransactionAction;
318	>	FDefaultAction      : TDefaultEndAction;
319		FTRParams           : TStrings;
320		FTRParamsChanged    : Boolean;
321		FInEndTransaction   : boolean;
#	Line 328 | Line 338 | type
338		function GetIdleTimer: Integer;
339		procedure BeforeDatabaseDisconnect(DB: TIBDatabase);
340		procedure SetActive(Value: Boolean);
331	–	procedure SetDefaultAction(Value: TTransactionAction);
341		procedure SetDefaultDatabase(Value: TIBDatabase);
342		procedure SetIdleTimer(Value: Integer);
343		procedure SetTRParams(Value: TStrings);
#	Line 341 | Line 350 | type
350
351		protected
352		procedure Loaded; override;
344	–	procedure SetHandle(Value: TISC_TR_HANDLE);
353		procedure Notification( AComponent: TComponent; Operation: TOperation); override;
354
355		public
356		constructor Create(AOwner: TComponent); override;
357		destructor Destroy; override;
350	–	function Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
358		procedure Commit;
359		procedure CommitRetaining;
360		procedure Rollback;
#	Line 368 | Line 375 | type
375		property Databases[Index: Integer]: TIBDatabase read GetDatabase;
376		property SQLObjectCount: Integer read GetSQLObjectCount;
377		property SQLObjects[Index: Integer]: TIBBase read GetSQLObject;
371	–	property Handle: TISC_TR_HANDLE read FHandle;
372	–	property HandleIsShared: Boolean read FHandleIsShared;
378		property InTransaction: Boolean read GetInTransaction;
379	<	property TPB: PChar read FTPB;
380	<	property TPBLength: Short read FTPBLength;
379	>	property TransactionIntf: ITransaction read FTransactionIntf;
380	>	property TPB: ITPB read FTPB;
381		published
382		property Active: Boolean read GetInTransaction write SetActive;
383		property DefaultDatabase: TIBDatabase read FDefaultDatabase
384		write SetDefaultDatabase;
385		property IdleTimer: Integer read GetIdleTimer write SetIdleTimer default 0;
386	<	property DefaultAction: TTransactionAction read FDefaultAction write SetDefaultAction default taCommit;
386	>	property DefaultAction: TDefaultEndAction read FDefaultAction write FDefaultAction default taCommit;
387		property Params: TStrings read FTRParams write SetTRParams;
388		property OnIdleTimer: TNotifyEvent read FOnIdleTimer write FOnIdleTimer;
389		property BeforeTransactionEnd: TNotifyEvent read FBeforeTransactionEnd
#	Line 429 | Line 434 | type
434		procedure DoBeforeTransactionEnd(Action: TTransactionAction); virtual;
435		procedure DoAfterTransactionEnd; virtual;
436		procedure DoTransactionFree; virtual;
432	–	function GetDBHandle: PISC_DB_HANDLE; virtual;
433	–	function GetTRHandle: PISC_TR_HANDLE; virtual;
437		procedure SetDatabase(Value: TIBDatabase); virtual;
438		procedure SetTransaction(Value: TIBTransaction); virtual;
439		public
#	Line 443 | Line 446 | type
446		procedure DoAfterDelete(Sender: TObject); virtual;
447		procedure DoAfterInsert(Sender: TObject); virtual;
448		procedure DoAfterPost(Sender: TObject); virtual;
446	–	function GetCharSetSize(CharSetID: integer): integer;
447	–	function GetDefaultCharSetSize: integer;
448	–	function GetCharSetName(CharSetID: integer): string;
449	–	function GetDefaultCharSetName: string;
449		procedure HandleException(Sender: TObject);
450		procedure SetCursor;
451		procedure RestoreCursor;
#	Line 465 | Line 464 | type
464		property OnTransactionFree: TNotifyEvent read FOnTransactionFree write FOnTransactionFree;
465		property Database: TIBDatabase read FDatabase
466		write SetDatabase;
468	–	property DBHandle: PISC_DB_HANDLE read GetDBHandle;
467		property Owner: TObject read FOwner;
470	–	property TRHandle: PISC_TR_HANDLE read GetTRHandle;
468		property Transaction: TIBTransaction read FTransaction
469		write SetTransaction;
470		end;
471
472	<	procedure GenerateDPB(sl: TStrings; var DPB: string; var DPBLength: Short);
473	<	procedure GenerateTPB(sl: TStrings; var TPB: string; var TPBLength: Short);
472	>	function GenerateDPB(sl: TStrings): IDPB;
473	>	function GenerateTPB(sl: TStrings): ITPB;
474
475
476		implementation
477
478	<	uses IBIntf, IBSQLMonitor, IBCustomDataSet, IBDatabaseInfo, IBSQL, IBUtils,
479	<	typInfo;
478	>	uses  IBSQLMonitor, IBCustomDataSet, IBDatabaseInfo, IBSQL, IBUtils,
479	>	typInfo, FBMessages, IBErrorCodes;
480
481		{ TIBDatabase }
482
483	<	constructor TIBDataBase.Create(AOwner: TComponent);
487	<	{$ifdef WINDOWS}
488	<	var acp: uint;
489	<	{$endif}
483	>	constructor TIBDataBase.Create(AOwner: TComponent);
484		begin
485		inherited Create(AOwner);
492	–	FIBLoaded := False;
493	–	CheckIBLoaded;
494	–	FIBLoaded := True;
486		LoginPrompt := True;
487		FSQLObjects := TList.Create;
488		FTransactions := TList.Create;
#	Line 502 | Line 493 | begin
493		(AOwner is TCustomApplication) and
494		TCustomApplication(AOWner).ConsoleApplication then
495		LoginPrompt := false;
505	–	{$ifdef UNIX}
506	–	if csDesigning in ComponentState then
507	–	FDBParams.Add('lc_ctype=UTF8');
508	–	{$else}
509	–	{$ifdef WINDOWS}
510	–	if csDesigning in ComponentState then
511	–	begin
512	–	acp := GetACP;
513	–	if (acp >= 1250) and (acp <= 1254) then
514	–	FDBParams.Values['lc_ctype'] := Format('WIN%d',[acp]);
515	–	end;
516	–	{$endif}
517	–	{$endif}
496		FDBParamsChanged := True;
497		TStringList(FDBParams).OnChange := DBParamsChange;
498		TStringList(FDBParams).OnChanging := DBParamsChanging;
499		FDPB := nil;
522	–	FHandle := nil;
500		FUserNames := nil;
501		FInternalTransaction := TIBTransaction.Create(self);
502		FInternalTransaction.DefaultDatabase := Self;
#	Line 534 | Line 511 | begin
511		CheckStreamConnect;
512		end;
513
514	<	destructor TIBDataBase.Destroy;
514	>	destructor TIBDataBase.Destroy;
515		var
516		i: Integer;
517		begin
518	<	if FIBLoaded then
519	<	begin
520	<	IdleTimer := 0;
521	<	if FHandle <> nil then
522	<	ForceClose;
523	<	for i := 0 to FSQLObjects.Count - 1 do
524	<	if FSQLObjects[i] <> nil then
525	<	SQLObjects[i].DoDatabaseFree;
526	<	RemoveSQLObjects;
527	<	RemoveTransactions;
528	<	FInternalTransaction.Free;
529	<	FreeMem(FDPB);
530	<	FDPB := nil;
531	<	FDBParams.Free;
555	<	FSQLObjects.Free;
556	<	FUserNames.Free;
557	<	FTransactions.Free;
558	<	end;
518	>	IdleTimer := 0;
519	>	if FAttachment <> nil then
520	>	ForceClose;
521	>	for i := 0 to FSQLObjects.Count - 1 do
522	>	if FSQLObjects[i] <> nil then
523	>	SQLObjects[i].DoDatabaseFree;
524	>	RemoveSQLObjects;
525	>	RemoveTransactions;
526	>	FInternalTransaction.Free;
527	>	FDPB := nil;
528	>	FDBParams.Free;
529	>	FSQLObjects.Free;
530	>	FUserNames.Free;
531	>	FTransactions.Free;
532		FDataSets.Free;
533		inherited Destroy;
534		end;
535
563	–	function TIBDataBase.Call(ErrCode: ISC_STATUS; RaiseError: Boolean
564	–	): ISC_STATUS;
565	–	begin
566	–	result := ErrCode;
567	–	FCanTimeout := False;
568	–	if RaiseError and (ErrCode > 0) then
569	–	IBDataBaseError;
570	–	end;
571	–
536		procedure TIBDataBase.CheckActive;
537		begin
538		if StreamedConnected and (not Connected) then
539		Loaded;
540	<	if FHandle = nil then
540	>	if FAttachment = nil then
541		IBError(ibxeDatabaseClosed, [nil]);
542		end;
543
#	Line 581 | Line 545 | end;
545		begin
546		if csDesigning in ComponentState then
547		begin
548	<	if FHandle <> nil then
548	>	if FAttachment <> nil then
549		Close;
550		end
551		end;
552
553		procedure TIBDataBase.CheckInactive;
554		begin
555	<	if FHandle <> nil then
555	>	if FAttachment <> nil then
556		IBError(ibxeDatabaseOpen, [nil]);
557		end;
558
559		procedure TIBDataBase.CheckDatabaseName;
560		begin
561	<	if (FDBName = '') then
561	>	if (Trim(FDBName) = '') then
562		IBError(ibxeDatabaseNameMissing, [nil]);
563		end;
564
#	Line 633 | Line 597 | begin
597		if Connected then
598		InternalClose(False);
599		FDBSQLDialect := 1;
600	<	SetLength(FCharSetSizes,0);
601	<	SetLength(FCharSetNames,0);
600	>	FDefaultCharSetName := '';
601	>	FDefaultCharSetID := 0;
602	>	FDefaultCodePage := CP_NONE;
603		end;
604
605	<	procedure TIBDataBase.CreateDatabase;
641	<	var
642	<	tr_handle: TISC_TR_HANDLE;
605	>	procedure TIBDataBase.CreateDatabase;
606		begin
607		CheckInactive;
608	<	tr_handle := nil;
609	<	Call(
610	<	isc_dsql_execute_immediate(StatusVector, @FHandle, @tr_handle, 0,
611	<	PChar('CREATE DATABASE ''' + FDBName + ''' ' + {do not localize}
612	<	Params.Text), SQLDialect, nil),
613	<	True);
608	>	CheckDatabaseName;
609	>	FCreateDatabase := true;
610	>	Connected := true;
611	>	end;
612	>
613	>	procedure TIBDataBase.CreateDatabase(createDatabaseSQL: string);
614	>	var info: IDBInformation;
615	>	ConnectionType: integer;
616	>	SiteName: string;
617	>	begin
618	>	CheckInactive;
619	>	FAttachment := FirebirdAPI.CreateDatabase(createDatabaseSQL,FSQLDialect);
620	>	info := FAttachment.GetDBInformation(isc_info_db_id);
621	>	info[0].DecodeIDCluster(ConnectionType,FDBName,SiteName);
622	>	if assigned(FOnCreateDatabase) and (FAttachment <> nil) then
623	>	OnCreateDatabase(self);
624		end;
625
626		procedure TIBDataBase.DropDatabase;
627		begin
628		CheckActive;
629	<	Call(isc_drop_database(StatusVector, @FHandle), True);
629	>	FAttachment.DropDatabase;
630	>	FAttachment := nil;
631		end;
632
633		procedure TIBDataBase.DBParamsChange(Sender: TObject);
#	Line 706 | Line 680 | end;
680
681		function TIBDataBase.GetConnected: Boolean;
682		begin
683	<	result := FHandle <> nil;
683	>	result := (FAttachment <> nil) and FAttachment.IsConnected;
684		end;
685
686		function TIBDataBase.GetSQLObject(Index: Integer): TIBBase;
#	Line 723 | Line 697 | begin
697		Inc(result);
698		end;
699
700	<	function TIBDataBase.GetDBParamByDPB( const Idx: Integer): String;
727	<	var
728	<	ConstIdx, EqualsIdx: Integer;
729	<	begin
730	<	if (Idx > 0) and (Idx <= isc_dpb_last_dpb_constant) then
731	<	begin
732	<	ConstIdx := IndexOfDBConst(DPBConstantNames[Idx]);
733	<	if ConstIdx = -1 then
734	<	result := ''
735	<	else
736	<	begin
737	<	result := Params[ConstIdx];
738	<	EqualsIdx := Pos('=', result); {mbcs ok}
739	<	if EqualsIdx = 0 then
740	<	result := ''
741	<	else
742	<	result := Copy(result, EqualsIdx + 1, Length(result));
743	<	end;
744	<	end
745	<	else
746	<	result := '';
747	<	end;
748	<
749	<	function TIBDataBase.GetIdleTimer: Integer;
700	>	function TIBDataBase.GetIdleTimer: Integer;
701		begin
702		result := FTimer.Interval;
703		end;
#	Line 811 | Line 762 | begin
762		end;
763		end;
764
765	<	if (not HandleIsShared) and
766	<	(Call(isc_detach_database(StatusVector, @FHandle), False) > 0) and
816	<	(not Force) then
817	<	IBDataBaseError
818	<	else
819	<	begin
820	<	FHandle := nil;
821	<	FHandleIsShared := False;
822	<	end;
765	>	FAttachment.Disconnect(Force);
766	>	FAttachment := nil;
767
768		if not (csDesigning in ComponentState) then
769		MonitorHook.DBDisconnect(Self);
#	Line 829 | Line 773 | begin
773		SQLObjects[i].DoAfterDatabaseDisconnect;
774		end;
775
832	–	procedure TIBDataBase.LoadCharSetInfo;
833	–	var Query: TIBSQL;
834	–	i: integer;
835	–	begin
836	–	if not FInternalTransaction.Active then
837	–	FInternalTransaction.StartTransaction;
838	–	Query := TIBSQL.Create(self);
839	–	try
840	–	Query.Database := Self;
841	–	Query.Transaction := FInternalTransaction;
842	–	Query.SQL.Text := 'Select RDB$CHARACTER_SET_ID, RDB$BYTES_PER_CHARACTER, RDB$CHARACTER_SET_NAME ' +
843	–	'From RDB$CHARACTER_SETS Order by 1 DESC'; {do not localize}
844	–	Query.Prepare;
845	–	Query.ExecQuery;
846	–	if not Query.EOF then
847	–	begin
848	–	SetLength(FCharSetSizes,Query.FieldByName('RDB$CHARACTER_SET_ID').AsInteger + 1);
849	–	SetLength(FCharSetNames,Query.FieldByName('RDB$CHARACTER_SET_ID').AsInteger + 1);
850	–	for i := 0 to Length(FCharSetSizes) - 1 do FCharSetSizes[i] := 1;
851	–	repeat
852	–	FCharSetSizes[Query.FieldByName('RDB$CHARACTER_SET_ID').AsInteger] :=
853	–	Query.FieldByName('RDB$BYTES_PER_CHARACTER').AsInteger;
854	–	FCharSetNames[Query.FieldByName('RDB$CHARACTER_SET_ID').AsInteger] :=
855	–	Query.FieldByName('RDB$CHARACTER_SET_NAME').AsString;
856	–	Query.Next;
857	–	until Query.EOF;
858	–	end;
859	–	finally
860	–	Query.free;
861	–	FInternalTransaction.Commit;
862	–	end;
863	–	end;
864	–
776		procedure TIBDataBase.CheckStreamConnect;
777		var
778		i: integer;
#	Line 884 | Line 795 | begin
795		(FDefaultTransaction.FStreamedActive) and
796		(not FDefaultTransaction.InTransaction) then
797		FDefaultTransaction.StartTransaction;
798	<	FStreamedConnected := False;
798	>	StreamedConnected := False;
799		end;
800		except
801		if csDesigning in ComponentState then
#	Line 925 | Line 836 | begin
836		end;
837		end;
838
839	<	function TIBDataBase.Login: Boolean;
839	>	function TIBDataBase.Login(var aDatabaseName: string): Boolean;
840		var
841		IndexOfUser, IndexOfPassword: Integer;
842		Username, Password, OldPassword: String;
#	Line 961 | Line 872 | begin
872		LoginParams.Assign(Params);
873		FOnLogin(Self, LoginParams);
874		Params.Assign (LoginParams);
875	+	aDatabaseName := FDBName;
876		HidePassword;
877		finally
878		LoginParams.Free;
#	Line 982 | Line 894 | begin
894		Length(Params[IndexOfPassword]));
895		OldPassword := password;
896		end;
897	<	result := IBGUIInterface.LoginDialogEx(DatabaseName, Username, Password, False);
897	>
898	>	result := IBGUIInterface.LoginDialogEx(aDatabaseName, Username, Password, False);
899		if result then
900		begin
901	<	if IndexOfUser = -1 then
902	<	Params.Add(DPBConstantNames[isc_dpb_user_name] + '=' + Username)
903	<	else
904	<	Params[IndexOfUser] := DPBConstantNames[isc_dpb_user_name] +
901	>	if Username <> '' then
902	>	begin
903	>	if IndexOfUser = -1 then
904	>	Params.Add(DPBConstantNames[isc_dpb_user_name] + '=' + Username)
905	>	else
906	>	Params[IndexOfUser] := DPBConstantNames[isc_dpb_user_name] +
907		'=' + Username;
908	+	end
909	+	else
910	+	if IndexOfUser <> -1 then
911	+	Params.Delete(IndexOfUser);
912		if (Password = OldPassword) then
913		FHiddenPassword := ''
914		else
#	Line 1010 | Line 929 | end;
929
930		procedure TIBDataBase.DoConnect;
931		var
1013	–	DPB: String;
932		TempDBParams: TStrings;
933		I: integer;
934		aDBName: string;
935	+	Status: IStatus;
936	+	CharSetID: integer;
937		begin
938		CheckInactive;
939		CheckDatabaseName;
#	Line 1023 | Line 943 | begin
943		FDBParamsChanged := True;
944		end;
945		{ Use builtin login prompt if requested }
946	<	if (LoginPrompt or (csDesigning in ComponentState)) and not Login then
946	>	aDBName := FDBName;
947	>	if (LoginPrompt or (csDesigning in ComponentState)) and not Login(aDBName) then
948		IBError(ibxeOperationCancelled, [nil]);
949
950		TempDBParams := TStringList.Create;
951		try
952		TempDBParams.Assign(FDBParams);
953	<	aDBName := FDBName;
953	>	if UseDefaultSystemCodePage then
954	>	begin
955	>	{$ifdef WINDOWS}
956	>	if FirebirdAPI.CodePage2CharSetID(GetACP,CharSetID) then
957	>	TempDBParams.Values['lc_ctype'] := FirebirdAPI.GetCharsetName(CharSetID)
958	>	{$else}
959	>	if FirebirdAPI.CodePage2CharSetID(DefaultSystemCodePage,CharSetID) then
960	>	TempDBParams.Values['lc_ctype'] := FirebirdAPI.GetCharsetName(CharSetID)
961	>	{$endif}
962	>	else
963	>	TempDBParams.Values['lc_ctype'] :='UTF8';
964	>	end;
965		{Opportunity to override defaults}
966		for i := 0 to FSQLObjects.Count - 1 do
967		begin
#	Line 1037 | Line 969 | begin
969		SQLObjects[i].DoBeforeDatabaseConnect(TempDBParams,aDBName);
970		end;
971
972	+	FDefaultCharSetName := AnsiUpperCase(TempDBParams.Values['lc_ctype']);
973	+	if FDefaultCharSetName <> '' then
974	+	FirebirdAPI.CharSetName2CharSetID(FDefaultCharSetName,FDefaultCharSetID);
975	+	FirebirdAPI.CharSetID2CodePage(FDefaultCharSetID,FDefaultCodePage);
976		{ Generate a new DPB if necessary }
977		if (FDBParamsChanged or (TempDBParams.Text <> FDBParams.Text)) then
978		begin
979		FDBParamsChanged := False;
980		if (not LoginPrompt and not (csDesigning in ComponentState)) or (FHiddenPassword = '') then
981	<	GenerateDPB(TempDBParams, DPB, FDPBLength)
981	>	FDPB := GenerateDPB(TempDBParams)
982		else
983		begin
984		TempDBParams.Add('password=' + FHiddenPassword);
985	<	GenerateDPB(TempDBParams, DPB, FDPBLength);
985	>	FDPB := GenerateDPB(TempDBParams);
986		end;
1051	–	IBAlloc(FDPB, 0, FDPBLength);
1052	–	Move(DPB[1], FDPB[0], FDPBLength);
987		end;
988		finally
989		TempDBParams.Free;
990		end;
991	<	if Call(isc_attach_database(StatusVector, Length(aDBName),
992	<	PChar(aDBName), @FHandle,
993	<	FDPBLength, FDPB), False) > 0 then
994	<	begin
995	<	FHandle := nil;
996	<	IBDataBaseError;
997	<	end;
991	>
992	>	repeat
993	>	if FCreateDatabase then
994	>	begin
995	>	FCreateDatabase := false;
996	>	FAttachment := FirebirdAPI.CreateDatabase(aDBName,FDPB, false);
997	>	if assigned(FOnCreateDatabase) and (FAttachment <> nil) then
998	>	OnCreateDatabase(self);
999	>	end
1000	>	else
1001	>	FAttachment := FirebirdAPI.OpenDatabase(aDBName,FDPB,false);
1002	>	if FAttachment = nil then
1003	>	begin
1004	>	Status := FirebirdAPI.GetStatus;
1005	>	{$IFDEF UNIX}
1006	>	if Pos(':',aDBName) = 0 then
1007	>	begin
1008	>	if ((Status.GetSQLCode = -901) and (Status.GetIBErrorCode = isc_random)) {Access permissions on firebird temp}
1009	>	or
1010	>	((Status.GetSQLCode = -902) and (Status.GetIBErrorCode = isc_sys_request)) {Security DB Problem}
1011	>	or
1012	>	((Status.GetSQLCode = -902) and (Status.GetIBErrorCode = isc_psw_attach)) {Security DB Problem}
1013	>	or
1014	>	((Status.GetSQLCode = -904) and (Status.GetIBErrorCode = isc_lock_dir_access)) {Lock File Problem}
1015	>	then
1016	>	begin
1017	>	aDBName := 'localhost:' + aDBName;
1018	>	Continue;
1019	>	end
1020	>	end;
1021	>	{$ENDIF}
1022	>	if ((Status.GetSQLCode = -902) and (Status.GetIBErrorCode = isc_io_error)) {Database not found}
1023	>	and CreateIfNotExists and not (csDesigning in ComponentState) then
1024	>	FCreateDatabase := true
1025	>	else
1026	>	raise EIBInterBaseError.Create(Status);
1027	>	end;
1028	>	until FAttachment <> nil;
1029		if not (csDesigning in ComponentState) then
1030		FDBName := aDBName; {Synchronise at run time}
1031		FDBSQLDialect := GetDBSQLDialect;
#	Line 1072 | Line 1037 | begin
1037		end;
1038		if not (csDesigning in ComponentState) then
1039		MonitorHook.DBConnect(Self);
1075	–	LoadCharSetInfo;
1040		end;
1041
1042		procedure TIBDataBase.RemoveSQLObject(Idx: Integer);
#	Line 1175 | Line 1139 | begin
1139		FDefaultTransaction := Value;
1140		end;
1141
1178	–	procedure TIBDataBase.SetHandle(Value: TISC_DB_HANDLE);
1179	–	begin
1180	–	if HandleIsShared then
1181	–	Close
1182	–	else
1183	–	CheckInactive;
1184	–	FHandle := Value;
1185	–	FHandleIsShared := (Value <> nil);
1186	–	end;
1187	–
1142		procedure TIBDataBase.SetIdleTimer(Value: Integer);
1143		begin
1144		if Value < 0 then
#	Line 1229 | Line 1183 | end;
1183		begin
1184		if Connected then
1185		begin
1186	<	if FCanTimeout then
1186	>	if not FAttachment.HasActivity then
1187		begin
1188		ForceClose;
1189		if Assigned(FOnIdleTimer) then
1190		FOnIdleTimer(Self);
1191		end
1238	–	else
1239	–	FCanTimeout := True;
1192		end;
1193		end;
1194
#	Line 1267 | Line 1219 | end;
1219		procedure TIBDataBase.SetSQLDialect( const Value: Integer);
1220		begin
1221		if (Value < 1) then IBError(ibxeSQLDialectInvalid, [nil]);
1222	<	if ((FHandle = nil) or (Value <= FDBSQLDialect))  then
1222	>	if ((FAttachment = nil) or (Value <= FDBSQLDialect))  then
1223		FSQLDialect := Value
1224		else
1225		IBError(ibxeSQLDialectInvalid, [nil]);
#	Line 1386 | Line 1338 | begin
1338		BeginUpdate;
1339		try
1340		Clear;
1341	<	while (not Query.EOF) and (Query.Next <> nil) do
1342	<	List.Add(TrimRight(Query.Current.ByName('RDB$FIELD_NAME').AsString)); {do not localize}
1341	>	while (not Query.EOF) and Query.Next  do
1342	>	List.Add(TrimRight(Query.FieldByName('RDB$FIELD_NAME').AsString)); {do not localize}
1343		finally
1344		EndUpdate;
1345		end;
#	Line 1426 | Line 1378 | begin
1378		BeginUpdate;
1379		try
1380		Clear;
1381	<	while (not Query.EOF) and (Query.Next <> nil) do
1382	<	List.Add(TrimRight(Query.Current[0].AsString));
1381	>	while (not Query.EOF) and Query.Next  do
1382	>	List.Add(TrimRight(Query.Fields[0].AsString));
1383		finally
1384		EndUpdate;
1385		end;
#	Line 1444 | Line 1396 | end;
1396		constructor TIBTransaction.Create(AOwner: TComponent);
1397		begin
1398		inherited Create(AOwner);
1447	–	FIBLoaded := False;
1448	–	CheckIBLoaded;
1449	–	FIBLoaded := True;
1450	–	CheckIBLoaded;
1399		FDatabases := TList.Create;
1400		FSQLObjects := TList.Create;
1453	–	FHandle := nil;
1401		FTPB := nil;
1455	–	FTPBLength := 0;
1402		FTRParams := TStringList.Create;
1403		FTRParamsChanged := True;
1404		TStringList(FTRParams).OnChange := TRParamsChange;
#	Line 1468 | Line 1414 | destructor TIBTransaction.Destroy;
1414		var
1415		i: Integer;
1416		begin
1417	<	if FIBLoaded then
1418	<	begin
1419	<	if InTransaction then
1420	<	EndTransaction(FDefaultAction, True);
1421	<	for i := 0 to FSQLObjects.Count - 1 do
1422	<	if FSQLObjects[i] <> nil then
1423	<	SQLObjects[i].DoTransactionFree;
1424	<	RemoveSQLObjects;
1425	<	RemoveDatabases;
1426	<	FreeMem(FTPB);
1427	<	FTPB := nil;
1482	<	FTRParams.Free;
1483	<	FSQLObjects.Free;
1484	<	FDatabases.Free;
1485	<	end;
1417	>	if InTransaction then
1418	>	EndTransaction(FDefaultAction, True);
1419	>	for i := 0 to FSQLObjects.Count - 1 do
1420	>	if FSQLObjects[i] <> nil then
1421	>	SQLObjects[i].DoTransactionFree;
1422	>	RemoveSQLObjects;
1423	>	RemoveDatabases;
1424	>	FTPB := nil;
1425	>	FTRParams.Free;
1426	>	FSQLObjects.Free;
1427	>	FDatabases.Free;
1428		inherited Destroy;
1429		end;
1430
1489	–	function TIBTransaction.Call(ErrCode: ISC_STATUS;
1490	–	RaiseError: Boolean): ISC_STATUS;
1491	–	var
1492	–	i: Integer;
1493	–	begin
1494	–	result := ErrCode;
1495	–	for i := 0 to FDatabases.Count - 1 do if FDatabases[i] <> nil then
1496	–	Databases[i].FCanTimeout := False;
1497	–	FCanTimeout := False;
1498	–	if RaiseError and (result > 0) then
1499	–	IBDataBaseError;
1500	–	end;
1501	–
1431		procedure TIBTransaction.CheckDatabasesInList;
1432		begin
1433		if GetDatabaseCount = 0 then
#	Line 1509 | Line 1438 | procedure TIBTransaction.CheckInTransact
1438		begin
1439		if FStreamedActive and (not InTransaction) then
1440		Loaded;
1441	<	if (FHandle = nil) then
1441	>	if (TransactionIntf = nil) then
1442		IBError(ibxeNotInTransaction, [nil]);
1443		end;
1444
#	Line 1565 | Line 1494 | procedure TIBTransaction.EnsureNotInTran
1494		begin
1495		if csDesigning in ComponentState then
1496		begin
1497	<	if FHandle <> nil then
1497	>	if TransactionIntf <> nil then
1498		Rollback;
1499		end;
1500		end;
1501
1502		procedure TIBTransaction.CheckNotInTransaction;
1503		begin
1504	<	if (FHandle <> nil) then
1504	>	if (TransactionIntf <> nil) and  TransactionIntf.InTransaction then
1505		IBError(ibxeInTransaction, [nil]);
1506		end;
1507
#	Line 1581 | Line 1510 | var
1510		i: Integer;
1511		NilFound: Boolean;
1512		begin
1513	+	EnsureNotInTransaction;
1514	+	CheckNotInTransaction;
1515	+	FTransactionIntf := nil;
1516	+
1517		i := FindDatabase(db);
1518		if i <> -1 then
1519		begin
#	Line 1631 | Line 1564 | end;
1564		procedure TIBTransaction.EndTransaction(Action: TTransactionAction;
1565		Force: Boolean);
1566		var
1634	–	status: ISC_STATUS;
1567		i: Integer;
1568		begin
1569		CheckInTransaction;
#	Line 1642 | Line 1574 | begin
1574		case Action of
1575		TARollback, TACommit:
1576		begin
1645	–	if (HandleIsShared) and
1646	–	(Action <> FDefaultAction) and
1647	–	(not Force) then
1648	–	IBError(ibxeCantEndSharedTransaction, [nil]);
1577		DoBeforeTransactionEnd;
1578		for i := 0 to FSQLObjects.Count - 1 do if FSQLObjects[i] <> nil then
1579		SQLObjects[i].DoBeforeTransactionEnd(Action);
1580		if InTransaction then
1581		begin
1582	<	if HandleIsShared then
1583	<	begin
1656	<	FHandle := nil;
1657	<	FHandleIsShared := False;
1658	<	status := 0;
1659	<	end
1582	>	if (Action = TARollback) then
1583	>	FTransactionIntf.Rollback(Force)
1584		else
1585	<	if (Action = TARollback) then
1586	<	status := Call(isc_rollback_transaction(StatusVector, @FHandle), False)
1587	<	else
1588	<	status := Call(isc_commit_transaction(StatusVector, @FHandle), False);
1589	<	if ((Force) and (status > 0)) then
1590	<	status := Call(isc_rollback_transaction(StatusVector, @FHandle), False);
1591	<	if Force then
1592	<	FHandle := nil
1593	<	else
1594	<	if (status > 0) then
1595	<	IBDataBaseError;
1585	>	try
1586	>	FTransactionIntf.Commit;
1587	>	except on E: EIBInterBaseError do
1588	>	begin
1589	>	if Force then
1590	>	FTransactionIntf.Rollback(Force)
1591	>	else
1592	>	raise;
1593	>	end;
1594	>	end;
1595	>
1596		for i := 0 to FSQLObjects.Count - 1 do if FSQLObjects[i] <> nil then
1597		SQLObjects[i].DoAfterTransactionEnd;
1598		DoAfterTransactionEnd;
1599		end;
1600		end;
1601		TACommitRetaining:
1602	<	Call(isc_commit_retaining(StatusVector, @FHandle), True);
1602	>	FTransactionIntf.CommitRetaining;
1603	>
1604		TARollbackRetaining:
1605	<	Call(isc_rollback_retaining(StatusVector, @FHandle), True);
1605	>	FTransactionIntf.RollbackRetaining;
1606		end;
1607		if not (csDesigning in ComponentState) then
1608		begin
#	Line 1729 | Line 1654 | end;
1654
1655		function TIBTransaction.GetInTransaction: Boolean;
1656		begin
1657	<	result := (FHandle <> nil);
1657	>	result := (TransactionIntf <> nil) and TransactionIntf.InTransaction;
1658		end;
1659
1660		function TIBTransaction.FindDatabase(db: TIBDatabase): Integer;
#	Line 1785 | Line 1710 | procedure TIBTransaction.BeforeDatabaseD
1710		begin
1711		if InTransaction then
1712		EndTransaction(FDefaultAction, True);
1713	+	FTransactionIntf := nil;
1714		end;
1715
1716		procedure TIBTransaction.RemoveDatabase(Idx: Integer);
#	Line 1793 | Line 1719 | var
1719		begin
1720		if ((Idx >= 0) and (FDatabases[Idx] <> nil)) then
1721		begin
1722	+	EnsureNotInTransaction;
1723	+	CheckNotInTransaction;
1724	+	FTransactionIntf := nil;
1725	+
1726		DB := Databases[Idx];
1727		FDatabases[Idx] := nil;
1728		DB.RemoveTransaction(DB.FindTransaction(Self));
#	Line 1805 | Line 1735 | procedure TIBTransaction.RemoveDatabases
1735		var
1736		i: Integer;
1737		begin
1738	+	EnsureNotInTransaction;
1739	+	CheckNotInTransaction;
1740	+	FTransactionIntf := nil;
1741	+
1742		for i := 0 to FDatabases.Count - 1 do if FDatabases[i] <> nil then
1743		RemoveDatabase(i);
1744		end;
#	Line 1851 | Line 1785 | begin
1785		Rollback;
1786		end;
1787
1854	–	procedure TIBTransaction.SetDefaultAction(Value: TTransactionAction);
1855	–	begin
1856	–	(*  if (Value = taRollbackRetaining) and (GetIBClientVersion < 6) then
1857	–	IBError(ibxeIB60feature, [nil]);*)
1858	–	FDefaultAction := Value;
1859	–	end;
1860	–
1788		procedure TIBTransaction.SetDefaultDatabase(Value: TIBDatabase);
1789		var
1790		i: integer;
#	Line 1880 | Line 1807 | begin
1807		FDefaultDatabase := Value;
1808		end;
1809
1883	–	procedure TIBTransaction.SetHandle(Value: TISC_TR_HANDLE);
1884	–	begin
1885	–	if (HandleIsShared) then
1886	–	EndTransaction(DefaultAction, True)
1887	–	else
1888	–	CheckNotInTransaction;
1889	–	FHandle := Value;
1890	–	FHandleIsShared := (Value <> nil);
1891	–	end;
1892	–
1810		procedure TIBTransaction.Notification( AComponent: TComponent;
1811		Operation: TOperation);
1812		var
#	Line 1931 | Line 1848 | end;
1848
1849		procedure TIBTransaction.StartTransaction;
1850		var
1934	–	pteb: PISC_TEB_ARRAY;
1935	–	TPB: String;
1851		i: Integer;
1852	+	Attachments: array of IAttachment;
1853	+	ValidDatabaseCount: integer;
1854		begin
1855		CheckNotInTransaction;
1856		CheckDatabasesInList;
1857	+	if TransactionIntf <> nil then
1858	+	begin
1859	+	TransactionIntf.Start(DefaultAction);
1860	+	Exit;
1861	+	end;
1862	+
1863		for i := 0 to FDatabases.Count - 1 do
1864		if  FDatabases[i] <> nil then
1865		begin
1866		with TIBDatabase(FDatabases[i]) do
1867		if not Connected then
1868	<	if FStreamedConnected then
1868	>	if StreamedConnected then
1869		begin
1870		Open;
1871	<	FStreamedConnected := False;
1871	>	StreamedConnected := False;
1872		end
1873		else
1874		IBError(ibxeDatabaseClosed, [nil]);
#	Line 1953 | Line 1876 | begin
1876		if FTRParamsChanged then
1877		begin
1878		FTRParamsChanged := False;
1879	<	GenerateTPB(FTRParams, TPB, FTPBLength);
1957	<	if FTPBLength > 0 then
1958	<	begin
1959	<	IBAlloc(FTPB, 0, FTPBLength);
1960	<	Move(TPB[1], FTPB[0], FTPBLength);
1961	<	end;
1879	>	FTPB :=  GenerateTPB(FTRParams);
1880		end;
1881
1882	<	pteb := nil;
1883	<	IBAlloc(pteb, 0, DatabaseCount * SizeOf(TISC_TEB));
1884	<	try
1885	<	for i := 0 to DatabaseCount - 1 do if Databases[i] <> nil then
1886	<	begin
1887	<	pteb^[i].db_handle := @(Databases[i].Handle);
1888	<	pteb^[i].tpb_length := FTPBLength;
1889	<	pteb^[i].tpb_address := FTPB;
1890	<	end;
1891	<	if Call(isc_start_multiple(StatusVector, @FHandle,
1892	<	DatabaseCount, PISC_TEB(pteb)), False) > 0 then
1893	<	begin
1894	<	FHandle := nil;
1895	<	IBDataBaseError;
1978	<	end;
1979	<	if not (csDesigning in ComponentState) then
1980	<	MonitorHook.TRStart(Self);
1981	<	finally
1982	<	FreeMem(pteb);
1882	>	ValidDatabaseCount := 0;
1883	>	for i := 0 to DatabaseCount - 1 do
1884	>	if Databases[i] <> nil then Inc(ValidDatabaseCount);
1885	>
1886	>	if ValidDatabaseCount = 1 then
1887	>	FTransactionIntf := Databases[0].Attachment.StartTransaction(FTPB,DefaultAction)
1888	>	else
1889	>	begin
1890	>	SetLength(Attachments,ValidDatabaseCount);
1891	>	for i := 0 to DatabaseCount - 1 do
1892	>	if Databases[i] <> nil then
1893	>	Attachments[i] := Databases[i].Attachment;
1894	>
1895	>	FTransactionIntf := FirebirdAPI.StartTransaction(Attachments,FTPB,DefaultAction);
1896		end;
1897	+
1898	+	if not (csDesigning in ComponentState) then
1899	+	MonitorHook.TRStart(Self);
1900		DoOnStartTransaction;
1901		end;
1902
#	Line 1988 | Line 1904 | procedure TIBTransaction.TimeoutTransact
1904		begin
1905		if InTransaction then
1906		begin
1907	<	if FCanTimeout then
1907	>	if not TransactionIntf.HasActivity then
1908		begin
1909		EndTransaction(FDefaultAction, True);
1910		if Assigned(FOnIdleTimer) then
1911		FOnIdleTimer(Self);
1912		end
1997	–	else
1998	–	FCanTimeout := True;
1913		end;
1914		end;
1915
#	Line 2008 | Line 1922 | procedure TIBTransaction.TRParamsChangin
1922		begin
1923		EnsureNotInTransaction;
1924		CheckNotInTransaction;
1925	+	FTransactionIntf := nil;
1926		end;
1927
1928		{ TIBBase }
#	Line 2023 | Line 1938 | begin
1938		inherited Destroy;
1939		end;
1940
2026	–	function TIBBase.GetCharSetSize(CharSetID: integer): integer;
2027	–	begin
2028	–	if (CharSetID >= 0) and (CharSetID < Length(Database.FCharSetSizes)) then
2029	–	Result := Database.FCharSetSizes[CharSetID]
2030	–	else
2031	–	Result := 1; {Unknown character set}
2032	–	end;
2033	–
2034	–	function TIBBase.GetDefaultCharSetSize: integer;
2035	–	var DefaultCharSetName: string;
2036	–	i: integer;
2037	–	begin
2038	–	DefaultCharSetName := GetDefaultCharSetName;
2039	–	Result := 4; {worse case}
2040	–	for i := 0 to Length(Database.FCharSetSizes) - 1 do
2041	–	if Database.FCharSetNames[i] = DefaultCharSetName then
2042	–	begin
2043	–	Result := Database.FCharSetSizes[i];
2044	–	break;
2045	–	end;
2046	–	end;
2047	–
2048	–	function TIBBase.GetCharSetName(CharSetID: integer): string;
2049	–	begin
2050	–	if (CharSetID >= 0) and (CharSetID < Length(Database.FCharSetNames)) then
2051	–	Result := Database.FCharSetNames[CharSetID]
2052	–	else
2053	–	Result := ''; {Unknown character set}
2054	–	end;
2055	–
2056	–	function TIBBase.GetDefaultCharSetName: string;
2057	–	begin
2058	–	Result := AnsiUpperCase(Database.Params.Values['lc_ctype']);
2059	–	end;
2060	–
1941		procedure TIBBase.HandleException(Sender: TObject);
1942		begin
1943		if assigned(Database) then
#	Line 2096 | Line 1976 | begin
1976		FTransaction.CheckInTransaction;
1977		end;
1978
2099	–	function TIBBase.GetDBHandle: PISC_DB_HANDLE;
2100	–	begin
2101	–	CheckDatabase;
2102	–	result := @FDatabase.Handle;
2103	–	end;
2104	–
2105	–	function TIBBase.GetTRHandle: PISC_TR_HANDLE;
2106	–	begin
2107	–	CheckTransaction;
2108	–	result := @FTransaction.Handle;
2109	–	end;
2110	–
1979		procedure TIBBase.DoBeforeDatabaseConnect(DBParams: TStrings; var DBName: string
1980		);
1981		begin
#	Line 2222 | Line 2090 | end;
2090		parameter buffer, and return it and its length
2091		in DPB and DPBLength, respectively. }
2092
2093	<	procedure GenerateDPB(sl: TStrings; var DPB: string; var DPBLength: Short);
2093	>	function GenerateDPB(sl: TStrings): IDPB;
2094		var
2095	<	i, j, pval: Integer;
2095	>	i, j: Integer;
2096		DPBVal: UShort;
2097		ParamName, ParamValue: string;
2098		begin
2099	<	{ The DPB is initially empty, with the exception that
2232	<	the DPB version must be the first byte of the string. }
2233	<	DPBLength := 1;
2234	<	DPB := Char(isc_dpb_version1);
2099	>	Result := FirebirdAPI.AllocateDPB;
2100
2101		{Iterate through the textual database parameters, constructing
2102		a DPB on-the-fly }
#	Line 2270 | Line 2135 | begin
2135		begin
2136		if DPBVal = isc_dpb_sql_dialect then
2137		ParamValue[1] := Char(Ord(ParamValue[1]) - 48);
2138	<	DPB := DPB +
2274	<	Char(DPBVal) +
2275	<	Char(Length(ParamValue)) +
2276	<	ParamValue;
2277	<	Inc(DPBLength, 2 + Length(ParamValue));
2138	>	Result.Add(DPBVal).SetAsString(ParamValue);
2139		end;
2140	+
2141		isc_dpb_num_buffers, isc_dpb_dbkey_scope, isc_dpb_force_write,
2142		isc_dpb_no_reserve, isc_dpb_damaged, isc_dpb_verify:
2143	<	begin
2144	<	DPB := DPB +
2283	<	Char(DPBVal) +
2284	<	#1 +
2285	<	Char(StrToInt(ParamValue));
2286	<	Inc(DPBLength, 3);
2287	<	end;
2143	>	Result.Add(DPBVal).SetAsByte(byte(ParamValue[1]));
2144	>
2145		isc_dpb_sweep:
2146	<	begin
2147	<	DPB := DPB +
2291	<	Char(DPBVal) +
2292	<	#1 +
2293	<	Char(isc_dpb_records);
2294	<	Inc(DPBLength, 3);
2295	<	end;
2146	>	Result.Add(DPBVal).SetAsByte(isc_dpb_records);
2147	>
2148		isc_dpb_sweep_interval:
2149	<	begin
2150	<	pval := StrToInt(ParamValue);
2299	<	DPB := DPB +
2300	<	Char(DPBVal) +
2301	<	#4 +
2302	<	PChar(@pval)[0] +
2303	<	PChar(@pval)[1] +
2304	<	PChar(@pval)[2] +
2305	<	PChar(@pval)[3];
2306	<	Inc(DPBLength, 6);
2307	<	end;
2149	>	Result.Add(DPBVal).SetAsInteger(StrToInt(ParamValue));
2150	>
2151		isc_dpb_activate_shadow, isc_dpb_delete_shadow, isc_dpb_begin_log,
2152		isc_dpb_quit_log:
2153	<	begin
2311	<	DPB := DPB +
2312	<	Char(DPBVal) +
2313	<	#1 + #0;
2314	<	Inc(DPBLength, 3);
2315	<	end;
2153	>	Result.Add(DPBVal).SetAsByte(0);
2154		else
2155		begin
2156		if (DPBVal > 0) and
#	Line 2330 | Line 2168 | end;
2168		of the transaction parameters, generate a transaction
2169		parameter buffer, and return it and its length in
2170		TPB and TPBLength, respectively. }
2171	<	procedure GenerateTPB(sl: TStrings; var TPB: string; var TPBLength: Short);
2171	>	function GenerateTPB(sl: TStrings): ITPB;
2172		var
2173	<	i, j, TPBVal, ParamLength: Integer;
2173	>	i, j, TPBVal: Integer;
2174		ParamName, ParamValue: string;
2175		begin
2176	<	TPB := '';
2339	<	if (sl.Count = 0) then
2340	<	TPBLength := 0
2341	<	else
2342	<	begin
2343	<	TPBLength := sl.Count + 1;
2344	<	TPB := TPB + Char(isc_tpb_version3);
2345	<	end;
2176	>	Result := FirebirdAPI.AllocateTPB;
2177		for i := 0 to sl.Count - 1 do
2178		begin
2179		if (Trim(sl[i]) =  '') then
2349	–	begin
2350	–	Dec(TPBLength);
2180		Continue;
2181	<	end;
2181	>
2182		if (Pos('=', sl[i]) = 0) then {mbcs ok}
2183		ParamName := LowerCase(sl[i]) {mbcs ok}
2184		else
#	Line 2373 | Line 2202 | begin
2202		isc_tpb_concurrency, isc_tpb_shared, isc_tpb_wait, isc_tpb_nowait,
2203		isc_tpb_read, isc_tpb_write, isc_tpb_ignore_limbo,
2204		isc_tpb_read_committed, isc_tpb_rec_version, isc_tpb_no_rec_version:
2205	<	TPB := TPB + Char(TPBVal);
2205	>	Result.Add(TPBVal);
2206	>
2207		isc_tpb_lock_read, isc_tpb_lock_write:
2208	<	begin
2209	<	TPB := TPB + Char(TPBVal);
2380	<	{ Now set the string parameter }
2381	<	ParamLength := Length(ParamValue);
2382	<	Inc(TPBLength, ParamLength + 1);
2383	<	TPB := TPB + Char(ParamLength) + ParamValue;
2384	<	end;
2208	>	Result.Add(TPBVal).SetAsString(ParamValue);
2209	>
2210		else
2211		begin
2212		if (TPBVal > 0) and

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