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root/public/ibx/trunk/fbintf/client/2.5/FB25ClientAPI.pas
Revision: 263
Committed: Thu Dec 6 15:55:01 2018 UTC (5 years, 11 months ago) by tony
Content type: text/x-pascal
File size: 25974 byte(s)
Log Message:
Release 2.3.2 committed

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 {$ENDIF}
71
72 interface
73
74 uses
75 Classes, SysUtils, FBClientAPI, IBHeader, IBExternals, IB;
76
77 const
78 FBClientInterfaceVersion = '2.5';
79
80 type
81
82 { TFB25Status }
83
84 TFB25Status = class(TFBStatus,IStatus)
85 public
86 function StatusVector: PStatusVector; override;
87 end;
88
89 { TFB25ClientAPI }
90
91 TFB25ClientAPI = class(TFBClientAPI,IFirebirdAPI)
92 private
93 FIBServiceAPIPresent: boolean;
94 FStatus: TFB25Status;
95 FStatusIntf: IStatus; {Keep a reference to the interface - automatic destroy
96 when this class is freed and last reference to IStatus
97 goes out of scope.}
98 public
99 constructor Create(aFBLibrary: TFBLibrary);
100 destructor Destroy; override;
101 function StatusVector: PISC_STATUS;
102 function LoadInterface: boolean; override;
103 function GetAPI: IFirebirdAPI; override;
104 {$IFDEF UNIX}
105 function GetFirebirdLibList: string; override;
106 {$ENDIF}
107 property IBServiceAPIPresent: boolean read FIBServiceAPIPresent;
108 property Status: TFB25Status read FStatus;
109
110 public
111
112 {fbclient API}
113 BLOB_get: TBLOB_get;
114 BLOB_put: TBLOB_put;
115 isc_wait_for_event: Tisc_wait_for_event;
116 isc_vax_integer: Tisc_vax_integer;
117 isc_portable_integer: Tisc_portable_integer;
118 isc_blob_info: Tisc_blob_info;
119 isc_blob_lookup_desc: Tisc_blob_lookup_desc;
120 isc_open_blob2: Tisc_open_blob2;
121 isc_close_blob: Tisc_close_blob;
122 isc_get_segment: Tisc_get_segment;
123 isc_put_segment: Tisc_put_segment;
124 isc_create_blob2: Tisc_create_blob2;
125 isc_cancel_blob: Tisc_cancel_blob;
126 isc_service_attach: Tisc_service_attach;
127 isc_service_detach: Tisc_service_detach;
128 isc_service_query: Tisc_service_query;
129 isc_service_start: Tisc_service_start;
130 isc_decode_date: Tisc_decode_date;
131 isc_decode_sql_date: Tisc_decode_sql_date;
132 isc_decode_sql_time: Tisc_decode_sql_time;
133 isc_decode_timestamp: Tisc_decode_timestamp;
134 isc_encode_date: Tisc_encode_date;
135 isc_encode_sql_date: Tisc_encode_sql_date;
136 isc_encode_sql_time: Tisc_encode_sql_time;
137 isc_encode_timestamp: Tisc_encode_timestamp;
138 isc_dsql_free_statement: Tisc_dsql_free_statement;
139 isc_dsql_execute2: Tisc_dsql_execute2;
140 isc_dsql_execute: Tisc_dsql_execute;
141 isc_dsql_set_cursor_name: Tisc_dsql_set_cursor_name;
142 isc_dsql_fetch: Tisc_dsql_fetch;
143 isc_dsql_sql_info: Tisc_dsql_sql_info;
144 isc_dsql_alloc_statement2: Tisc_dsql_alloc_statement2;
145 isc_dsql_prepare: Tisc_dsql_prepare;
146 isc_dsql_describe_bind: Tisc_dsql_describe_bind;
147 isc_dsql_describe: Tisc_dsql_describe;
148 isc_dsql_execute_immediate: Tisc_dsql_execute_immediate;
149 isc_drop_database: Tisc_drop_database;
150 isc_detach_database: Tisc_detach_database;
151 isc_attach_database: Tisc_attach_database;
152 isc_database_info: Tisc_database_info;
153 isc_start_transaction: Tisc_start_transaction;
154 isc_start_multiple: Tisc_start_multiple;
155 isc_commit_transaction: Tisc_commit_transaction;
156 isc_commit_retaining: Tisc_commit_retaining;
157 isc_rollback_transaction: Tisc_rollback_transaction;
158 isc_rollback_retaining: Tisc_rollback_retaining;
159 isc_cancel_events: Tisc_cancel_events;
160 isc_que_events: Tisc_que_events;
161 isc_add_user : Tisc_add_user;
162 isc_delete_user: Tisc_delete_user;
163 isc_modify_user: Tisc_modify_user;
164 isc_array_lookup_bounds: Tisc_array_lookup_bounds;
165 isc_array_get_slice: Tisc_array_get_slice;
166 isc_array_put_slice: Tisc_array_put_slice;
167 isc_prepare_transaction: Tisc_prepare_transaction;
168
169 public
170 {Helper Functions}
171 function DecodeInteger(bufptr: PByte; len: short): integer; override;
172 procedure SQLEncodeDate(aDate: TDateTime; bufptr: PByte); override;
173 function SQLDecodeDate(bufptr: PByte): TDateTime; override;
174 procedure SQLEncodeTime(aTime: TDateTime; bufptr: PByte); override;
175 function SQLDecodeTime(bufptr: PByte): TDateTime; override;
176 procedure SQLEncodeDateTime(aDateTime: TDateTime; bufptr: PByte); override;
177 function SQLDecodeDateTime(bufptr: PByte): TDateTime; override;
178
179 public
180 {IFirebirdAPI}
181
182 {Database connections}
183 function AllocateDPB: IDPB;
184 function OpenDatabase(DatabaseName: AnsiString; DPB: IDPB; RaiseExceptionOnConnectError: boolean=true): IAttachment;
185 function CreateDatabase(DatabaseName: AnsiString; DPB: IDPB; RaiseExceptionOnError: boolean=true): IAttachment; overload;
186 function CreateDatabase(sql: AnsiString; aSQLDialect: integer; RaiseExceptionOnError: boolean=true): IAttachment; overload;
187
188 {Start Transaction against multiple databases}
189 function AllocateTPB: ITPB;
190 function StartTransaction(Attachments: array of IAttachment;
191 TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; overload;
192 function StartTransaction(Attachments: array of IAttachment;
193 TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; overload;
194
195 {Service Manager}
196 function AllocateSPB: ISPB;
197 function HasServiceAPI: boolean;
198 function GetServiceManager(ServerName: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager; overload;
199 function GetServiceManager(ServerName: AnsiString; Port: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager; overload;
200
201 {Information}
202 function GetStatus: IStatus; override;
203 function HasRollbackRetaining: boolean;
204 function IsEmbeddedServer: boolean; override;
205 function GetImplementationVersion: AnsiString;
206
207 {Firebird 3 API}
208 function HasMasterIntf: boolean;
209 function GetIMaster: TObject;
210
211 end;
212
213 implementation
214
215 uses FBMessages,
216 {$IFDEF WINDOWS}Windows, {$ENDIF}
217 {$IFDEF FPC} Dynlibs, {$ENDIF}
218 FB25Attachment, FB25Transaction, FB25Services, FBParamBlock,
219 IBUtils;
220
221 { Stubs for 6.0 only functions }
222 function isc_rollback_retaining_stub(status_vector : PISC_STATUS;
223 tran_handle : PISC_TR_HANDLE):
224 ISC_STATUS; {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
225 begin
226 Result := 0;
227 IBError(ibxeIB60feature, ['isc_rollback_retaining']); {do not localize}
228 end;
229
230 function isc_service_attach_stub(status_vector : PISC_STATUS;
231 isc_arg2 : UShort;
232 isc_arg3 : PAnsiChar;
233 service_handle : PISC_SVC_HANDLE;
234 isc_arg5 : UShort;
235 isc_arg6 : PAnsiChar):
236 ISC_STATUS; {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
237 begin
238 Result := 0;
239 IBError(ibxeIB60feature, ['isc_service_attach']); {do not localize}
240 end;
241
242 function isc_service_detach_stub(status_vector : PISC_STATUS;
243 service_handle : PISC_SVC_HANDLE):
244 ISC_STATUS; {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
245 begin
246 Result := 0;
247 IBError(ibxeIB60feature, ['isc_service_detach']); {do not localize}
248 end;
249
250 function isc_service_query_stub(status_vector : PISC_STATUS;
251 service_handle : PISC_SVC_HANDLE;
252 recv_handle : PISC_SVC_HANDLE;
253 isc_arg4 : UShort;
254 isc_arg5 : PAnsiChar;
255 isc_arg6 : UShort;
256 isc_arg7 : PAnsiChar;
257 isc_arg8 : UShort;
258 isc_arg9 : PAnsiChar):
259 ISC_STATUS; {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
260 begin
261 Result := 0;
262 IBError(ibxeIB60feature, ['isc_service_query']); {do not localize}
263 end;
264
265 function isc_service_start_stub(status_vector : PISC_STATUS;
266 service_handle : PISC_SVC_HANDLE;
267 recv_handle : PISC_SVC_HANDLE;
268 isc_arg4 : UShort;
269 isc_arg5 : PAnsiChar):
270 ISC_STATUS; {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
271 begin
272 Result := 0;
273 IBError(ibxeIB60feature, ['isc_service_start']); {do not localize}
274 end;
275
276 procedure isc_encode_sql_date_stub(tm_date : PCTimeStructure;
277 ib_date : PISC_DATE);
278 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
279 begin
280 IBError(ibxeIB60feature, ['isc_encode_sql_date']); {do not localize}
281 end;
282
283 procedure isc_encode_sql_time_stub(tm_date : PCTimeStructure;
284 ib_time : PISC_TIME);
285 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
286 begin
287 IBError(ibxeIB60feature, ['isc_encode_sql_time']); {do not localize}
288 end;
289
290 procedure isc_encode_timestamp_stub(tm_date : PCTimeStructure;
291 ib_timestamp : PISC_TIMESTAMP);
292 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
293 begin
294 IBError(ibxeIB60feature, ['isc_encode_sql_timestamp']); {do not localize}
295 end;
296
297 procedure isc_decode_sql_date_stub(ib_date : PISC_DATE;
298 tm_date : PCTimeStructure);
299 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
300 begin
301 IBError(ibxeIB60feature, ['isc_decode_sql_date']); {do not localize}
302 end;
303
304 procedure isc_decode_sql_time_stub(ib_time : PISC_TIME;
305 tm_date : PCTimeStructure);
306 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
307 begin
308 IBError(ibxeIB60feature, ['isc_decode_sql_time']); {do not localize}
309 end;
310
311 procedure isc_decode_timestamp_stub(ib_timestamp : PISC_TIMESTAMP;
312 tm_date : PCTimeStructure);
313 {$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
314 begin
315 IBError(ibxeIB60feature, ['isc_decode_timestamp']); {do not localize}
316 end;
317
318 { TFB25Status }
319
320 threadvar
321 FStatusVector: TStatusVector;
322
323 { TFB25ActivityReporter }
324
325 function TFB25Status.StatusVector: PStatusVector;
326 begin
327 Result := @FStatusVector;
328 end;
329
330
331 { TFB25ClientAPI }
332
333 {$IFDEF UNIX}
334 function TFB25ClientAPI.GetFirebirdLibList: string;
335 begin
336 Result := 'libfbembed.so:libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so:libfbclient.so.2';
337 end;
338 {$ENDIF}
339
340 function TFB25ClientAPI.LoadInterface: boolean;
341 begin
342 Result := inherited LoadInterface;
343 BLOB_get := GetProcAddr('BLOB_get'); {do not localize}
344 BLOB_put := GetProcAddr('BLOB_put'); {do not localize}
345 isc_wait_for_event := GetProcAddr('isc_wait_for_event'); {do not localize}
346 isc_vax_integer := GetProcAddr('isc_vax_integer'); {do not localize}
347 isc_portable_integer := GetProcAddr('isc_portable_integer'); {do not localize}
348 isc_blob_info := GetProcAddr('isc_blob_info'); {do not localize}
349 isc_blob_lookup_desc := GetProcAddr('isc_blob_lookup_desc'); {do not localize}
350 isc_open_blob2 := GetProcAddr('isc_open_blob2'); {do not localize}
351 isc_close_blob := GetProcAddr('isc_close_blob'); {do not localize}
352 isc_get_segment := GetProcAddr('isc_get_segment'); {do not localize}
353 isc_put_segment := GetProcAddr('isc_put_segment'); {do not localize}
354 isc_create_blob2 := GetProcAddr('isc_create_blob2'); {do not localize}
355 isc_cancel_blob := GetProcAddr('isc_cancel_blob'); {do not localize}
356 isc_decode_date := GetProcAddr('isc_decode_date'); {do not localize}
357 isc_encode_date := GetProcAddr('isc_encode_date'); {do not localize}
358 isc_dsql_free_statement := GetProcAddr('isc_dsql_free_statement'); {do not localize}
359 isc_dsql_execute2 := GetProcAddr('isc_dsql_execute2'); {do not localize}
360 isc_dsql_execute := GetProcAddr('isc_dsql_execute'); {do not localize}
361 isc_dsql_set_cursor_name := GetProcAddr('isc_dsql_set_cursor_name'); {do not localize}
362 isc_dsql_fetch := GetProcAddr('isc_dsql_fetch'); {do not localize}
363 isc_dsql_sql_info := GetProcAddr('isc_dsql_sql_info'); {do not localize}
364 isc_dsql_alloc_statement2 := GetProcAddr('isc_dsql_alloc_statement2'); {do not localize}
365 isc_dsql_prepare := GetProcAddr('isc_dsql_prepare'); {do not localize}
366 isc_dsql_describe_bind := GetProcAddr('isc_dsql_describe_bind'); {do not localize}
367 isc_dsql_describe := GetProcAddr('isc_dsql_describe'); {do not localize}
368 isc_dsql_execute_immediate := GetProcAddr('isc_dsql_execute_immediate'); {do not localize}
369 isc_drop_database := GetProcAddr('isc_drop_database'); {do not localize}
370 isc_detach_database := GetProcAddr('isc_detach_database'); {do not localize}
371 isc_attach_database := GetProcAddr('isc_attach_database'); {do not localize}
372 isc_database_info := GetProcAddr('isc_database_info'); {do not localize}
373 isc_start_transaction := GetProcAddr('isc_start_transaction'); {do not localize}
374 isc_start_multiple := GetProcAddr('isc_start_multiple'); {do not localize}
375 isc_commit_transaction := GetProcAddr('isc_commit_transaction'); {do not localize}
376 isc_commit_retaining := GetProcAddr('isc_commit_retaining'); {do not localize}
377 isc_rollback_transaction := GetProcAddr('isc_rollback_transaction'); {do not localize}
378 isc_cancel_events := GetProcAddr('isc_cancel_events'); {do not localize}
379 isc_que_events := GetProcAddr('isc_que_events'); {do not localize}
380 isc_add_user := GetProcAddr('isc_add_user'); {do not localize}
381 isc_delete_user := GetProcAddr('isc_delete_user'); {do not localize}
382 isc_modify_user := GetProcAddr('isc_modify_user'); {do not localize}
383 isc_array_lookup_bounds := GetProcAddr('isc_array_lookup_bounds'); {do not localize}
384 isc_array_get_slice := GetProcAddr('isc_array_get_slice'); {do not localize}
385 isc_array_put_slice := GetProcAddr('isc_array_put_slice'); {do not localize}
386 isc_prepare_transaction := GetProcAddr('isc_prepare_transaction'); {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.HasMasterIntf: boolean;
540 begin
541 Result := false;
542 end;
543
544 function TFB25ClientAPI.GetIMaster: TObject;
545 begin
546 Result := nil;
547 end;
548
549 function TFB25ClientAPI.GetImplementationVersion: AnsiString;
550 begin
551 Result := FBClientInterfaceVersion;
552 end;
553
554 function TFB25ClientAPI.DecodeInteger(bufptr: PByte; len: short): integer;
555 begin
556 Result := isc_portable_integer(bufptr,len);
557 end;
558
559 procedure TFB25ClientAPI.SQLEncodeDate(aDate: TDateTime; bufptr: PByte);
560 var
561 tm_date: TCTimeStructure;
562 Yr, Mn, Dy: Word;
563 begin
564 DecodeDate(aDate, Yr, Mn, Dy);
565 with tm_date do begin
566 tm_sec := 0;
567 tm_min := 0;
568 tm_hour := 0;
569 tm_mday := Dy;
570 tm_mon := Mn - 1;
571 tm_year := Yr - 1900;
572 end;
573 isc_encode_sql_date(@tm_date, PISC_DATE(bufptr));
574 end;
575
576 function TFB25ClientAPI.SQLDecodeDate(bufptr: PByte): TDateTime;
577 var
578 tm_date: TCTimeStructure;
579 begin
580 isc_decode_sql_date(PISC_DATE(bufptr), @tm_date);
581 try
582 result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
583 Word(tm_date.tm_mday));
584 except
585 on E: EConvertError do begin
586 IBError(ibxeInvalidDataConversion, [nil]);
587 end;
588 end;
589 end;
590
591 procedure TFB25ClientAPI.SQLEncodeTime(aTime: TDateTime; bufptr: PByte);
592 var
593 tm_date: TCTimeStructure;
594 Hr, Mt, S, Ms: Word;
595 begin
596 DecodeTime(aTime, Hr, Mt, S, Ms);
597 with tm_date do begin
598 tm_sec := S;
599 tm_min := Mt;
600 tm_hour := Hr;
601 tm_mday := 0;
602 tm_mon := 0;
603 tm_year := 0;
604 end;
605 isc_encode_sql_time(@tm_date, PISC_TIME(bufptr));
606 if Ms > 0 then
607 Inc(PISC_TIME(bufptr)^,Ms*10);
608 end;
609
610 function TFB25ClientAPI.SQLDecodeTime(bufptr: PByte): TDateTime;
611 var
612 tm_date: TCTimeStructure;
613 msecs: Word;
614 begin
615 isc_decode_sql_time(PISC_TIME(bufptr), @tm_date);
616 try
617 msecs := (PISC_TIME(bufptr)^ mod 10000) div 10;
618 result := EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
619 Word(tm_date.tm_sec), msecs)
620 except
621 on E: EConvertError do begin
622 IBError(ibxeInvalidDataConversion, [nil]);
623 end;
624 end;
625 end;
626
627 procedure TFB25ClientAPI.SQLEncodeDateTime(aDateTime: TDateTime; bufptr: PByte);
628 var
629 tm_date: TCTimeStructure;
630 Yr, Mn, Dy, Hr, Mt, S, Ms: Word;
631 begin
632 DecodeDate(aDateTime, Yr, Mn, Dy);
633 DecodeTime(aDateTime, Hr, Mt, S, Ms);
634 with tm_date do begin
635 tm_sec := S;
636 tm_min := Mt;
637 tm_hour := Hr;
638 tm_mday := Dy;
639 tm_mon := Mn - 1;
640 tm_year := Yr - 1900;
641 end;
642 isc_encode_date(@tm_date, PISC_QUAD(bufptr));
643 if Ms > 0 then
644 Inc(PISC_TIMESTAMP(bufptr)^.timestamp_time,Ms*10);
645 end;
646
647 function TFB25ClientAPI.SQLDecodeDateTime(bufptr: PByte): TDateTime;
648 var
649 tm_date: TCTimeStructure;
650 msecs: Word;
651 begin
652 isc_decode_date(PISC_QUAD(bufptr), @tm_date);
653 try
654 result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
655 Word(tm_date.tm_mday));
656 msecs := (PISC_TIMESTAMP(bufptr)^.timestamp_time mod 10000) div 10;
657 if result >= 0 then
658 result := result + EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
659 Word(tm_date.tm_sec), msecs)
660 else
661 result := result - EncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
662 Word(tm_date.tm_sec), msecs)
663 except
664 on E: EConvertError do begin
665 IBError(ibxeInvalidDataConversion, [nil]);
666 end;
667 end;
668 end;
669
670 end.
671
672