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root/public/ibx/trunk/fbintf/client/2.5/FB25ClientAPI.pas
Revision: 350
Committed: Wed Oct 20 14:58:56 2021 UTC (2 years, 5 months ago) by tony
Content type: text/x-pascal
File size: 26611 byte(s)
Log Message:
Fixed Merged

File Contents

# Content
1 (*
2 * Firebird Interface (fbintf). The fbintf components provide a set of
3 * Pascal language bindings for the Firebird API. Although predominantly
4 * a new development they include source code taken from IBX and may be
5 * considered a derived product. This software thus also includes the copyright
6 * notice and license conditions from IBX.
7 *
8 * Except for those parts dervied from IBX, contents of this file are subject
9 * to the Initial Developer's Public License Version 1.0 (the "License"); you
10 * may not use this file except in compliance with the License. You may obtain a
11 * copy of the License here:
12 *
13 * http://www.firebirdsql.org/index.php?op=doc&id=idpl
14 *
15 * Software distributed under the License is distributed on an "AS
16 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
17 * implied. See the License for the specific language governing rights
18 * and limitations under the License.
19 *
20 * The Initial Developer of the Original Code is Tony Whyman.
21 *
22 * The Original Code is (C) 2016 Tony Whyman, MWA Software
23 * (http://www.mwasoftware.co.uk).
24 *
25 * All Rights Reserved.
26 *
27 * Contributor(s): ______________________________________.
28 *
29 *)
30 {************************************************************************}
31 { }
32 { Borland Delphi Visual Component Library }
33 { InterBase Express core components }
34 { }
35 { Copyright (c) 1998-2000 Inprise Corporation }
36 { }
37 { InterBase Express is based in part on the product }
38 { Free IB Components, written by Gregory H. Deatz for }
39 { Hoagland, Longo, Moran, Dunst & Doukas Company. }
40 { Free IB Components is used under license. }
41 { }
42 { The contents of this file are subject to the InterBase }
43 { Public License Version 1.0 (the "License"); you may not }
44 { use this file except in compliance with the License. You }
45 { may obtain a copy of the License at http://www.Inprise.com/IPL.html }
46 { Software distributed under the License is distributed on }
47 { an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either }
48 { express or implied. See the License for the specific language }
49 { governing rights and limitations under the License. }
50 { The Original Code was created by InterBase Software Corporation }
51 { and its successors. }
52 { Portions created by Inprise Corporation are Copyright (C) Inprise }
53 { Corporation. All Rights Reserved. }
54 { Contributor(s): Jeff Overcash }
55 { }
56 { IBX For Lazarus (Firebird Express) }
57 { Contributor: Tony Whyman, MWA Software http://www.mwasoftware.co.uk }
58 { Portions created by MWA Software are copyright McCallum Whyman }
59 { Associates Ltd 2011 - 2015 }
60 { }
61 {************************************************************************}
62 unit FB25ClientAPI;
63 {$IFDEF MSWINDOWS}
64 {$DEFINE WINDOWS}
65 {$ENDIF}
66
67 {$IFDEF FPC}
68 {$mode delphi}
69 {$interfaces COM}
70 {$ENDIF}
71
72 interface
73
74 uses
75 Classes, SysUtils, FBClientAPI, IBHeader, IBExternals, IB;
76
77 type
78
79 { TFB25Status }
80
81 TFB25Status = class(TFBStatus,IStatus)
82 public
83 function StatusVector: PStatusVector; override;
84 end;
85
86 { TFB25ClientAPI }
87
88 TFB25ClientAPI = class(TFBClientAPI,IFirebirdAPI)
89 private
90 FIBServiceAPIPresent: boolean;
91 FStatus: TFB25Status;
92 FStatusIntf: IStatus; {Keep a reference to the interface - automatic destroy
93 when this class is freed and last reference to IStatus
94 goes out of scope.}
95 public
96 constructor Create(aFBLibrary: TFBLibrary);
97 destructor Destroy; override;
98 function StatusVector: PISC_STATUS;
99 function LoadInterface: boolean; override;
100 function GetAPI: IFirebirdAPI; override;
101 {$IFDEF UNIX}
102 function GetFirebirdLibList: string; override;
103 {$ENDIF}
104 property IBServiceAPIPresent: boolean read FIBServiceAPIPresent;
105 property Status: TFB25Status read FStatus;
106
107 public
108
109 {fbclient API}
110 BLOB_get: TBLOB_get;
111 BLOB_put: TBLOB_put;
112 isc_wait_for_event: Tisc_wait_for_event;
113 isc_vax_integer: Tisc_vax_integer;
114 isc_blob_info: Tisc_blob_info;
115 isc_blob_lookup_desc: Tisc_blob_lookup_desc;
116 isc_open_blob2: Tisc_open_blob2;
117 isc_close_blob: Tisc_close_blob;
118 isc_get_segment: Tisc_get_segment;
119 isc_put_segment: Tisc_put_segment;
120 isc_create_blob2: Tisc_create_blob2;
121 isc_cancel_blob: Tisc_cancel_blob;
122 isc_service_attach: Tisc_service_attach;
123 isc_service_detach: Tisc_service_detach;
124 isc_service_query: Tisc_service_query;
125 isc_service_start: Tisc_service_start;
126 isc_decode_date: Tisc_decode_date;
127 isc_decode_sql_date: Tisc_decode_sql_date;
128 isc_decode_sql_time: Tisc_decode_sql_time;
129 isc_decode_timestamp: Tisc_decode_timestamp;
130 isc_encode_date: Tisc_encode_date;
131 isc_encode_sql_date: Tisc_encode_sql_date;
132 isc_encode_sql_time: Tisc_encode_sql_time;
133 isc_encode_timestamp: Tisc_encode_timestamp;
134 isc_dsql_free_statement: Tisc_dsql_free_statement;
135 isc_dsql_execute2: Tisc_dsql_execute2;
136 isc_dsql_execute: Tisc_dsql_execute;
137 isc_dsql_set_cursor_name: Tisc_dsql_set_cursor_name;
138 isc_dsql_fetch: Tisc_dsql_fetch;
139 isc_dsql_sql_info: Tisc_dsql_sql_info;
140 isc_dsql_alloc_statement2: Tisc_dsql_alloc_statement2;
141 isc_dsql_prepare: Tisc_dsql_prepare;
142 isc_dsql_describe_bind: Tisc_dsql_describe_bind;
143 isc_dsql_describe: Tisc_dsql_describe;
144 isc_dsql_execute_immediate: Tisc_dsql_execute_immediate;
145 isc_drop_database: Tisc_drop_database;
146 isc_detach_database: Tisc_detach_database;
147 isc_attach_database: Tisc_attach_database;
148 isc_database_info: Tisc_database_info;
149 isc_start_transaction: Tisc_start_transaction;
150 isc_start_multiple: Tisc_start_multiple;
151 isc_commit_transaction: Tisc_commit_transaction;
152 isc_commit_retaining: Tisc_commit_retaining;
153 isc_rollback_transaction: Tisc_rollback_transaction;
154 isc_rollback_retaining: Tisc_rollback_retaining;
155 isc_cancel_events: Tisc_cancel_events;
156 isc_que_events: Tisc_que_events;
157 isc_add_user : Tisc_add_user;
158 isc_delete_user: Tisc_delete_user;
159 isc_modify_user: Tisc_modify_user;
160 isc_array_lookup_bounds: Tisc_array_lookup_bounds;
161 isc_array_get_slice: Tisc_array_get_slice;
162 isc_array_put_slice: Tisc_array_put_slice;
163 isc_prepare_transaction: Tisc_prepare_transaction;
164 isc_version: Tisc_Version;
165 isc_interprete: Tisc_interprete;
166
167 public
168 {Helper Functions}
169 procedure SQLEncodeDate(aDate: TDateTime; bufptr: PByte); override;
170 function SQLDecodeDate(bufptr: PByte): TDateTime; override;
171 procedure SQLEncodeTime(aTime: TDateTime; bufptr: PByte); override;
172 function SQLDecodeTime(bufptr: PByte): TDateTime; override;
173 procedure SQLEncodeDateTime(aDateTime: TDateTime; bufptr: PByte); override;
174 function SQLDecodeDateTime(bufptr: PByte): TDateTime; override;
175 function FormatStatus(Status: TFBStatus): AnsiString; override;
176 public
177 {IFirebirdAPI}
178
179 {Database connections}
180 function AllocateDPB: IDPB;
181 function OpenDatabase(DatabaseName: AnsiString; DPB: IDPB; RaiseExceptionOnConnectError: boolean=true): IAttachment;
182 function CreateDatabase(DatabaseName: AnsiString; DPB: IDPB; RaiseExceptionOnError: boolean=true): IAttachment; overload;
183 function CreateDatabase(sql: AnsiString; aSQLDialect: integer; RaiseExceptionOnError: boolean=true): IAttachment; overload;
184
185 {Start Transaction against multiple databases}
186 function AllocateTPB: ITPB;
187 function StartTransaction(Attachments: array of IAttachment;
188 TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; overload;
189 function StartTransaction(Attachments: array of IAttachment;
190 TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; overload;
191
192 {Service Manager}
193 function AllocateSPB: ISPB;
194 function HasServiceAPI: boolean;
195 function GetServiceManager(ServerName: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager; overload;
196 function GetServiceManager(ServerName: AnsiString; Port: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager; overload;
197
198 {Information}
199 function GetStatus: IStatus; override;
200 function HasRollbackRetaining: boolean;
201 function IsEmbeddedServer: boolean; override;
202 function GetClientMajor: integer; override;
203 function GetClientMinor: integer; override;
204 function HasScollableCursors: boolean;
205
206 {Firebird 3 API}
207 function HasMasterIntf: boolean;
208 function GetIMaster: TObject;
209
210 end;
211
212 implementation
213
214 uses FBMessages,
215 {$IFDEF WINDOWS}Windows, {$ENDIF}
216 {$IFDEF FPC} Dynlibs, {$ENDIF}
217 FB25Attachment, FB25Transaction, FB25Services,
218 IBUtils, FBAttachment, FBTransaction, FBServices;
219
220 { Stubs for 6.0 only functions }
221 function isc_rollback_retaining_stub(status_vector : PISC_STATUS;
222 tran_handle : PISC_TR_HANDLE):
223 ISC_STATUS; {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
224 begin
225 Result := 0;
226 IBError(ibxeIB60feature, ['isc_rollback_retaining']); {do not localize}
227 end;
228
229 function isc_service_attach_stub(status_vector : PISC_STATUS;
230 isc_arg2 : UShort;
231 isc_arg3 : PAnsiChar;
232 service_handle : PISC_SVC_HANDLE;
233 isc_arg5 : UShort;
234 isc_arg6 : PAnsiChar):
235 ISC_STATUS; {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
236 begin
237 Result := 0;
238 IBError(ibxeIB60feature, ['isc_service_attach']); {do not localize}
239 end;
240
241 function isc_service_detach_stub(status_vector : PISC_STATUS;
242 service_handle : PISC_SVC_HANDLE):
243 ISC_STATUS; {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
244 begin
245 Result := 0;
246 IBError(ibxeIB60feature, ['isc_service_detach']); {do not localize}
247 end;
248
249 function isc_service_query_stub(status_vector : PISC_STATUS;
250 service_handle : PISC_SVC_HANDLE;
251 recv_handle : PISC_SVC_HANDLE;
252 isc_arg4 : UShort;
253 isc_arg5 : PAnsiChar;
254 isc_arg6 : UShort;
255 isc_arg7 : PAnsiChar;
256 isc_arg8 : UShort;
257 isc_arg9 : PAnsiChar):
258 ISC_STATUS; {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
259 begin
260 Result := 0;
261 IBError(ibxeIB60feature, ['isc_service_query']); {do not localize}
262 end;
263
264 function isc_service_start_stub(status_vector : PISC_STATUS;
265 service_handle : PISC_SVC_HANDLE;
266 recv_handle : PISC_SVC_HANDLE;
267 isc_arg4 : UShort;
268 isc_arg5 : PAnsiChar):
269 ISC_STATUS; {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
270 begin
271 Result := 0;
272 IBError(ibxeIB60feature, ['isc_service_start']); {do not localize}
273 end;
274
275 procedure isc_encode_sql_date_stub(tm_date : PCTimeStructure;
276 ib_date : PISC_DATE);
277 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
278 begin
279 IBError(ibxeIB60feature, ['isc_encode_sql_date']); {do not localize}
280 end;
281
282 procedure isc_encode_sql_time_stub(tm_date : PCTimeStructure;
283 ib_time : PISC_TIME);
284 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
285 begin
286 IBError(ibxeIB60feature, ['isc_encode_sql_time']); {do not localize}
287 end;
288
289 procedure isc_encode_timestamp_stub(tm_date : PCTimeStructure;
290 ib_timestamp : PISC_TIMESTAMP);
291 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
292 begin
293 IBError(ibxeIB60feature, ['isc_encode_sql_timestamp']); {do not localize}
294 end;
295
296 procedure isc_decode_sql_date_stub(ib_date : PISC_DATE;
297 tm_date : PCTimeStructure);
298 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
299 begin
300 IBError(ibxeIB60feature, ['isc_decode_sql_date']); {do not localize}
301 end;
302
303 procedure isc_decode_sql_time_stub(ib_time : PISC_TIME;
304 tm_date : PCTimeStructure);
305 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
306 begin
307 IBError(ibxeIB60feature, ['isc_decode_sql_time']); {do not localize}
308 end;
309
310 procedure isc_decode_timestamp_stub(ib_timestamp : PISC_TIMESTAMP;
311 tm_date : PCTimeStructure);
312 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
313 begin
314 IBError(ibxeIB60feature, ['isc_decode_timestamp']); {do not localize}
315 end;
316
317 { TFB25Status }
318
319 threadvar
320 FStatusVector: TStatusVector;
321
322 { TFB25ActivityReporter }
323
324 function TFB25Status.StatusVector: PStatusVector;
325 begin
326 Result := @FStatusVector;
327 end;
328
329
330 { TFB25ClientAPI }
331
332 {$IFDEF UNIX}
333 function TFB25ClientAPI.GetFirebirdLibList: string;
334 begin
335 Result := 'libfbembed.so:libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so:libfbclient.so.2';
336 end;
337 {$ENDIF}
338
339 function TFB25ClientAPI.LoadInterface: boolean;
340 begin
341 Result := inherited LoadInterface;
342 BLOB_get := GetProcAddr('BLOB_get'); {do not localize}
343 BLOB_put := GetProcAddr('BLOB_put'); {do not localize}
344 isc_wait_for_event := GetProcAddr('isc_wait_for_event'); {do not localize}
345 isc_vax_integer := GetProcAddr('isc_vax_integer'); {do not localize}
346 isc_blob_info := GetProcAddr('isc_blob_info'); {do not localize}
347 isc_blob_lookup_desc := GetProcAddr('isc_blob_lookup_desc'); {do not localize}
348 isc_open_blob2 := GetProcAddr('isc_open_blob2'); {do not localize}
349 isc_close_blob := GetProcAddr('isc_close_blob'); {do not localize}
350 isc_get_segment := GetProcAddr('isc_get_segment'); {do not localize}
351 isc_put_segment := GetProcAddr('isc_put_segment'); {do not localize}
352 isc_create_blob2 := GetProcAddr('isc_create_blob2'); {do not localize}
353 isc_cancel_blob := GetProcAddr('isc_cancel_blob'); {do not localize}
354 isc_decode_date := GetProcAddr('isc_decode_date'); {do not localize}
355 isc_encode_date := GetProcAddr('isc_encode_date'); {do not localize}
356 isc_dsql_free_statement := GetProcAddr('isc_dsql_free_statement'); {do not localize}
357 isc_dsql_execute2 := GetProcAddr('isc_dsql_execute2'); {do not localize}
358 isc_dsql_execute := GetProcAddr('isc_dsql_execute'); {do not localize}
359 isc_dsql_set_cursor_name := GetProcAddr('isc_dsql_set_cursor_name'); {do not localize}
360 isc_dsql_fetch := GetProcAddr('isc_dsql_fetch'); {do not localize}
361 isc_dsql_sql_info := GetProcAddr('isc_dsql_sql_info'); {do not localize}
362 isc_dsql_alloc_statement2 := GetProcAddr('isc_dsql_alloc_statement2'); {do not localize}
363 isc_dsql_prepare := GetProcAddr('isc_dsql_prepare'); {do not localize}
364 isc_dsql_describe_bind := GetProcAddr('isc_dsql_describe_bind'); {do not localize}
365 isc_dsql_describe := GetProcAddr('isc_dsql_describe'); {do not localize}
366 isc_dsql_execute_immediate := GetProcAddr('isc_dsql_execute_immediate'); {do not localize}
367 isc_drop_database := GetProcAddr('isc_drop_database'); {do not localize}
368 isc_detach_database := GetProcAddr('isc_detach_database'); {do not localize}
369 isc_attach_database := GetProcAddr('isc_attach_database'); {do not localize}
370 isc_database_info := GetProcAddr('isc_database_info'); {do not localize}
371 isc_start_transaction := GetProcAddr('isc_start_transaction'); {do not localize}
372 isc_start_multiple := GetProcAddr('isc_start_multiple'); {do not localize}
373 isc_commit_transaction := GetProcAddr('isc_commit_transaction'); {do not localize}
374 isc_commit_retaining := GetProcAddr('isc_commit_retaining'); {do not localize}
375 isc_rollback_transaction := GetProcAddr('isc_rollback_transaction'); {do not localize}
376 isc_cancel_events := GetProcAddr('isc_cancel_events'); {do not localize}
377 isc_que_events := GetProcAddr('isc_que_events'); {do not localize}
378 isc_add_user := GetProcAddr('isc_add_user'); {do not localize}
379 isc_delete_user := GetProcAddr('isc_delete_user'); {do not localize}
380 isc_modify_user := GetProcAddr('isc_modify_user'); {do not localize}
381 isc_array_lookup_bounds := GetProcAddr('isc_array_lookup_bounds'); {do not localize}
382 isc_array_get_slice := GetProcAddr('isc_array_get_slice'); {do not localize}
383 isc_array_put_slice := GetProcAddr('isc_array_put_slice'); {do not localize}
384 isc_prepare_transaction := GetProcAddr('isc_prepare_transaction'); {do not localize}
385 isc_version := GetProcAddr('isc_version'); {do not localize}
386 isc_interprete := GetProcAddr('isc_interprete'); {do not localize}
387
388 FIBServiceAPIPresent := true;
389 isc_rollback_retaining := GetProcAddress(FFBLibrary.IBLibrary, 'isc_rollback_retaining'); {do not localize}
390 if Assigned(isc_rollback_retaining) then
391 begin
392 isc_service_attach := GetProcAddr('isc_service_attach'); {do not localize}
393 isc_service_detach := GetProcAddr('isc_service_detach'); {do not localize}
394 isc_service_query := GetProcAddr('isc_service_query'); {do not localize}
395 isc_service_start := GetProcAddr('isc_service_start'); {do not localize}
396 isc_decode_sql_date := GetProcAddr('isc_decode_sql_date'); {do not localize}
397 isc_decode_sql_time := GetProcAddr('isc_decode_sql_time'); {do not localize}
398 isc_decode_timestamp := GetProcAddr('isc_decode_timestamp'); {do not localize}
399 isc_encode_sql_date := GetProcAddr('isc_encode_sql_date'); {do not localize}
400 isc_encode_sql_time := GetProcAddr('isc_encode_sql_time'); {do not localize}
401 isc_encode_timestamp := GetProcAddr('isc_encode_timestamp'); {do not localize}
402 end else
403 begin
404 FIBServiceAPIPresent := false;
405 isc_rollback_retaining := @isc_rollback_retaining_stub;
406 isc_service_attach := @isc_service_attach_stub;
407 isc_service_detach := @isc_service_detach_stub;
408 isc_service_query := @isc_service_query_stub;
409 isc_service_start := @isc_service_start_stub;
410 isc_decode_sql_date := @isc_decode_sql_date_stub;
411 isc_decode_sql_time := @isc_decode_sql_time_stub;
412 isc_decode_timestamp := @isc_decode_timestamp_stub;
413 isc_encode_sql_date := @isc_encode_sql_date_stub;
414 isc_encode_sql_time := @isc_encode_sql_time_stub;
415 isc_encode_timestamp := @isc_encode_timestamp_stub;
416 end;
417 Result := Result and assigned(isc_attach_database);
418 end;
419
420 function TFB25ClientAPI.GetAPI: IFirebirdAPI;
421 begin
422 Result := self;
423 end;
424
425 constructor TFB25ClientAPI.Create(aFBLibrary: TFBLibrary);
426 begin
427 inherited Create(aFBLibrary);
428 FStatus := TFB25Status.Create(self);
429 FStatusIntf := FStatus;
430 end;
431
432 destructor TFB25ClientAPI.Destroy;
433 begin
434 FStatusIntf := nil;
435 inherited Destroy;
436 end;
437
438
439 function TFB25ClientAPI.StatusVector: PISC_STATUS;
440 begin
441 Result := PISC_STATUS(FStatus.StatusVector);
442 end;
443
444 function TFB25ClientAPI.GetStatus: IStatus;
445 begin
446 Result := FStatus;
447 end;
448
449 function TFB25ClientAPI.AllocateDPB: IDPB;
450 begin
451 Result := TDPB.Create(self);
452 end;
453
454 function TFB25ClientAPI.OpenDatabase(DatabaseName: AnsiString; DPB: IDPB;
455 RaiseExceptionOnConnectError: boolean): IAttachment;
456 begin
457 Result := TFB25Attachment.Create(self,DatabaseName,DPB,RaiseExceptionOnConnectError);
458 if not Result.IsConnected then
459 Result := nil;
460 end;
461
462 function TFB25ClientAPI.CreateDatabase(DatabaseName: AnsiString; DPB: IDPB;
463 RaiseExceptionOnError: boolean): IAttachment;
464 begin
465 Result := TFB25Attachment.CreateDatabase(self,DatabaseName, DPB, RaiseExceptionOnError );
466 if (Result <> nil) and not Result.IsConnected then
467 Result := nil;
468 end;
469
470 function TFB25ClientAPI.CreateDatabase(sql: AnsiString; aSQLDialect: integer;
471 RaiseExceptionOnError: boolean): IAttachment;
472 begin
473 Result := TFB25Attachment.CreateDatabase(self,sql,aSQLDialect, RaiseExceptionOnError );
474 if (Result <> nil) and not Result.IsConnected then
475 Result := nil;
476 end;
477
478 function TFB25ClientAPI.AllocateSPB: ISPB;
479 begin
480 Result := TSPB.Create(self);
481 end;
482
483 function TFB25ClientAPI.AllocateTPB: ITPB;
484 begin
485 Result := TTPB.Create(self);
486 end;
487
488 function TFB25ClientAPI.GetServiceManager(ServerName: AnsiString;
489 Protocol: TProtocol; SPB: ISPB): IServiceManager;
490 begin
491 if HasServiceAPI then
492 Result := TFB25ServiceManager.Create(self,ServerName,Protocol,SPB)
493 else
494 Result := nil;
495 end;
496
497 function TFB25ClientAPI.GetServiceManager(ServerName: AnsiString;
498 Port: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager;
499 begin
500 if HasServiceAPI then
501 Result := TFB25ServiceManager.Create(self,ServerName,Protocol,SPB,Port)
502 else
503 Result := nil;
504 end;
505
506 function TFB25ClientAPI.StartTransaction(Attachments: array of IAttachment;
507 TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction;
508 begin
509 Result := TFB25Transaction.Create(self,Attachments,TPB,DefaultCompletion);
510 end;
511
512 function TFB25ClientAPI.StartTransaction(Attachments: array of IAttachment;
513 TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction;
514 begin
515 Result := TFB25Transaction.Create(self,Attachments,TPB,DefaultCompletion);
516 end;
517
518 function TFB25ClientAPI.HasServiceAPI: boolean;
519 begin
520 Result := IBServiceAPIPresent;
521 end;
522
523 function TFB25ClientAPI.HasRollbackRetaining: boolean;
524 begin
525 Result := assigned(isc_rollback_retaining);
526 end;
527
528 function TFB25ClientAPI.IsEmbeddedServer: boolean;
529 begin
530 Result := false;
531 {$IFDEF UNIX}
532 Result := Pos('libfbembed',FFBLibrary.GetLibraryName) = 1;
533 {$ENDIF}
534 {$IFDEF WINDOWS}
535 Result := CompareText(FFBLibrary.GetLibraryName,FIREBIRD_EMBEDDED) = 0;
536 {$ENDIF}
537 end;
538
539 function TFB25ClientAPI.GetClientMajor: integer;
540 begin
541 Result := 2;
542 end;
543
544 function TFB25ClientAPI.GetClientMinor: integer;
545 begin
546 Result := 5;
547 end;
548
549 function TFB25ClientAPI.HasScollableCursors: boolean;
550 begin
551 Result := false;
552 end;
553
554 function TFB25ClientAPI.HasMasterIntf: boolean;
555 begin
556 Result := false;
557 end;
558
559 function TFB25ClientAPI.GetIMaster: TObject;
560 begin
561 Result := nil;
562 end;
563
564 procedure TFB25ClientAPI.SQLEncodeDate(aDate: TDateTime; bufptr: PByte);
565 var
566 tm_date: TCTimeStructure;
567 Yr, Mn, Dy: Word;
568 begin
569 DecodeDate(aDate, Yr, Mn, Dy);
570 with tm_date do begin
571 tm_sec := 0;
572 tm_min := 0;
573 tm_hour := 0;
574 tm_mday := Dy;
575 tm_mon := Mn - 1;
576 tm_year := Yr - 1900;
577 end;
578 isc_encode_sql_date(@tm_date, PISC_DATE(bufptr));
579 end;
580
581 function TFB25ClientAPI.SQLDecodeDate(bufptr: PByte): TDateTime;
582 var
583 tm_date: TCTimeStructure;
584 begin
585 isc_decode_sql_date(PISC_DATE(bufptr), @tm_date);
586 try
587 result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
588 Word(tm_date.tm_mday));
589 except
590 on E: EConvertError do begin
591 IBError(ibxeInvalidDataConversion, [nil]);
592 end;
593 end;
594 end;
595
596 procedure TFB25ClientAPI.SQLEncodeTime(aTime: TDateTime; bufptr: PByte);
597 var
598 tm_date: TCTimeStructure;
599 Hr, Mt, S: Word;
600 DMs: cardinal; {DMs = decimilliseconds}
601 begin
602 FBDecodeTime(aTime, Hr, Mt, S, DMs);
603 with tm_date do begin
604 tm_sec := S;
605 tm_min := Mt;
606 tm_hour := Hr;
607 tm_mday := 0;
608 tm_mon := 0;
609 tm_year := 0;
610 end;
611 isc_encode_sql_time(@tm_date, PISC_TIME(bufptr));
612 if DMs > 0 then
613 Inc(PISC_TIME(bufptr)^,DMs);
614 end;
615
616 function TFB25ClientAPI.SQLDecodeTime(bufptr: PByte): TDateTime;
617 var
618 tm_date: TCTimeStructure;
619 DMs: cardinal; {DMs = decimilliseconds}
620 begin
621 isc_decode_sql_time(PISC_TIME(bufptr), @tm_date);
622 try
623 DMs := PISC_TIME(bufptr)^ mod 10000;
624 result := FBEncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
625 Word(tm_date.tm_sec), DMs)
626 except
627 on E: EConvertError do begin
628 IBError(ibxeInvalidDataConversion, [nil]);
629 end;
630 end;
631 end;
632
633 procedure TFB25ClientAPI.SQLEncodeDateTime(aDateTime: TDateTime; bufptr: PByte);
634 var
635 tm_date: TCTimeStructure;
636 Yr, Mn, Dy, Hr, Mt, S, Ms: Word;
637 DMs: cardinal;
638 begin
639 DecodeDate(aDateTime, Yr, Mn, Dy);
640 FBDecodeTime(aDateTime, Hr, Mt, S, DMs);
641 with tm_date do begin
642 tm_sec := S;
643 tm_min := Mt;
644 tm_hour := Hr;
645 tm_mday := Dy;
646 tm_mon := Mn - 1;
647 tm_year := Yr - 1900;
648 end;
649 isc_encode_date(@tm_date, PISC_QUAD(bufptr));
650 if DMs > 0 then
651 Inc(PISC_TIMESTAMP(bufptr)^.timestamp_time,DMs);
652 end;
653
654 function TFB25ClientAPI.SQLDecodeDateTime(bufptr: PByte): TDateTime;
655 var
656 tm_date: TCTimeStructure;
657 Dmsecs: Word;
658 begin
659 isc_decode_date(PISC_QUAD(bufptr), @tm_date);
660 try
661 result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
662 Word(tm_date.tm_mday));
663 Dmsecs := PISC_TIMESTAMP(bufptr)^.timestamp_time mod 10000;
664 if result >= 0 then
665 result := result + FBEncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
666 Word(tm_date.tm_sec), Dmsecs)
667 else
668 result := result - FBEncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
669 Word(tm_date.tm_sec), Dmsecs)
670 except
671 on E: EConvertError do begin
672 IBError(ibxeInvalidDataConversion, [nil]);
673 end;
674 end;
675 end;
676
677 function TFB25ClientAPI.FormatStatus(Status: TFBStatus): AnsiString;
678 var psb: PStatusVector;
679 local_buffer: array[0..IBHugeLocalBufferLength - 1] of AnsiChar;
680 begin
681 psb := Status.StatusVector;
682 Result := '';
683 while isc_interprete(@local_buffer,@psb) > 0 do
684 begin
685 if (Result <> '') and (Result[Length(Result)] <> LF) then
686 Result := Result + LineEnding + '-';
687 Result := Result + strpas(local_buffer);
688 end;
689 end;
690
691 end.
692
693