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root/public/ibx/trunk/fbintf/client/2.5/FB25ClientAPI.pas
Revision: 315
Committed: Thu Feb 25 11:56:36 2021 UTC (3 years, 8 months ago) by tony
Content type: text/x-pascal
File size: 26820 byte(s)
Log Message:
Updated for IBX 4 release

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_portable_integer: Tisc_portable_integer;
115 isc_blob_info: Tisc_blob_info;
116 isc_blob_lookup_desc: Tisc_blob_lookup_desc;
117 isc_open_blob2: Tisc_open_blob2;
118 isc_close_blob: Tisc_close_blob;
119 isc_get_segment: Tisc_get_segment;
120 isc_put_segment: Tisc_put_segment;
121 isc_create_blob2: Tisc_create_blob2;
122 isc_cancel_blob: Tisc_cancel_blob;
123 isc_service_attach: Tisc_service_attach;
124 isc_service_detach: Tisc_service_detach;
125 isc_service_query: Tisc_service_query;
126 isc_service_start: Tisc_service_start;
127 isc_decode_date: Tisc_decode_date;
128 isc_decode_sql_date: Tisc_decode_sql_date;
129 isc_decode_sql_time: Tisc_decode_sql_time;
130 isc_decode_timestamp: Tisc_decode_timestamp;
131 isc_encode_date: Tisc_encode_date;
132 isc_encode_sql_date: Tisc_encode_sql_date;
133 isc_encode_sql_time: Tisc_encode_sql_time;
134 isc_encode_timestamp: Tisc_encode_timestamp;
135 isc_dsql_free_statement: Tisc_dsql_free_statement;
136 isc_dsql_execute2: Tisc_dsql_execute2;
137 isc_dsql_execute: Tisc_dsql_execute;
138 isc_dsql_set_cursor_name: Tisc_dsql_set_cursor_name;
139 isc_dsql_fetch: Tisc_dsql_fetch;
140 isc_dsql_sql_info: Tisc_dsql_sql_info;
141 isc_dsql_alloc_statement2: Tisc_dsql_alloc_statement2;
142 isc_dsql_prepare: Tisc_dsql_prepare;
143 isc_dsql_describe_bind: Tisc_dsql_describe_bind;
144 isc_dsql_describe: Tisc_dsql_describe;
145 isc_dsql_execute_immediate: Tisc_dsql_execute_immediate;
146 isc_drop_database: Tisc_drop_database;
147 isc_detach_database: Tisc_detach_database;
148 isc_attach_database: Tisc_attach_database;
149 isc_database_info: Tisc_database_info;
150 isc_start_transaction: Tisc_start_transaction;
151 isc_start_multiple: Tisc_start_multiple;
152 isc_commit_transaction: Tisc_commit_transaction;
153 isc_commit_retaining: Tisc_commit_retaining;
154 isc_rollback_transaction: Tisc_rollback_transaction;
155 isc_rollback_retaining: Tisc_rollback_retaining;
156 isc_cancel_events: Tisc_cancel_events;
157 isc_que_events: Tisc_que_events;
158 isc_add_user : Tisc_add_user;
159 isc_delete_user: Tisc_delete_user;
160 isc_modify_user: Tisc_modify_user;
161 isc_array_lookup_bounds: Tisc_array_lookup_bounds;
162 isc_array_get_slice: Tisc_array_get_slice;
163 isc_array_put_slice: Tisc_array_put_slice;
164 isc_prepare_transaction: Tisc_prepare_transaction;
165 isc_version: Tisc_Version;
166 isc_interprete: Tisc_interprete;
167
168 public
169 {Helper Functions}
170 function DecodeInteger(bufptr: PByte; len: short): integer; override;
171 procedure SQLEncodeDate(aDate: TDateTime; bufptr: PByte); override;
172 function SQLDecodeDate(bufptr: PByte): TDateTime; override;
173 procedure SQLEncodeTime(aTime: TDateTime; bufptr: PByte); override;
174 function SQLDecodeTime(bufptr: PByte): TDateTime; override;
175 procedure SQLEncodeDateTime(aDateTime: TDateTime; bufptr: PByte); override;
176 function SQLDecodeDateTime(bufptr: PByte): TDateTime; override;
177 function FormatStatus(Status: TFBStatus): AnsiString; override;
178 public
179 {IFirebirdAPI}
180
181 {Database connections}
182 function AllocateDPB: IDPB;
183 function OpenDatabase(DatabaseName: AnsiString; DPB: IDPB; RaiseExceptionOnConnectError: boolean=true): IAttachment;
184 function CreateDatabase(DatabaseName: AnsiString; DPB: IDPB; RaiseExceptionOnError: boolean=true): IAttachment; overload;
185 function CreateDatabase(sql: AnsiString; aSQLDialect: integer; RaiseExceptionOnError: boolean=true): IAttachment; overload;
186
187 {Start Transaction against multiple databases}
188 function AllocateTPB: ITPB;
189 function StartTransaction(Attachments: array of IAttachment;
190 TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; overload;
191 function StartTransaction(Attachments: array of IAttachment;
192 TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; overload;
193
194 {Service Manager}
195 function AllocateSPB: ISPB;
196 function HasServiceAPI: boolean;
197 function GetServiceManager(ServerName: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager; overload;
198 function GetServiceManager(ServerName: AnsiString; Port: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager; overload;
199
200 {Information}
201 function GetStatus: IStatus; override;
202 function HasRollbackRetaining: boolean;
203 function IsEmbeddedServer: boolean; override;
204 function GetClientMajor: integer; override;
205 function GetClientMinor: integer; override;
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, {$ENDIF}
218 FB25Attachment, FB25Transaction, FB25Services,
219 IBUtils, FBAttachment, FBTransaction, FBServices;
220
221 { Stubs for 6.0 only functions }
222 function isc_rollback_retaining_stub(status_vector : PISC_STATUS;
223 tran_handle : PISC_TR_HANDLE):
224 ISC_STATUS; {$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 isc_version := GetProcAddr('isc_version'); {do not localize}
388 isc_interprete := GetProcAddr('isc_interprete'); {do not localize}
389
390 FIBServiceAPIPresent := true;
391 isc_rollback_retaining := GetProcAddress(FFBLibrary.IBLibrary, 'isc_rollback_retaining'); {do not localize}
392 if Assigned(isc_rollback_retaining) then
393 begin
394 isc_service_attach := GetProcAddr('isc_service_attach'); {do not localize}
395 isc_service_detach := GetProcAddr('isc_service_detach'); {do not localize}
396 isc_service_query := GetProcAddr('isc_service_query'); {do not localize}
397 isc_service_start := GetProcAddr('isc_service_start'); {do not localize}
398 isc_decode_sql_date := GetProcAddr('isc_decode_sql_date'); {do not localize}
399 isc_decode_sql_time := GetProcAddr('isc_decode_sql_time'); {do not localize}
400 isc_decode_timestamp := GetProcAddr('isc_decode_timestamp'); {do not localize}
401 isc_encode_sql_date := GetProcAddr('isc_encode_sql_date'); {do not localize}
402 isc_encode_sql_time := GetProcAddr('isc_encode_sql_time'); {do not localize}
403 isc_encode_timestamp := GetProcAddr('isc_encode_timestamp'); {do not localize}
404 end else
405 begin
406 FIBServiceAPIPresent := false;
407 isc_rollback_retaining := @isc_rollback_retaining_stub;
408 isc_service_attach := @isc_service_attach_stub;
409 isc_service_detach := @isc_service_detach_stub;
410 isc_service_query := @isc_service_query_stub;
411 isc_service_start := @isc_service_start_stub;
412 isc_decode_sql_date := @isc_decode_sql_date_stub;
413 isc_decode_sql_time := @isc_decode_sql_time_stub;
414 isc_decode_timestamp := @isc_decode_timestamp_stub;
415 isc_encode_sql_date := @isc_encode_sql_date_stub;
416 isc_encode_sql_time := @isc_encode_sql_time_stub;
417 isc_encode_timestamp := @isc_encode_timestamp_stub;
418 end;
419 Result := Result and assigned(isc_attach_database);
420 end;
421
422 function TFB25ClientAPI.GetAPI: IFirebirdAPI;
423 begin
424 Result := self;
425 end;
426
427 constructor TFB25ClientAPI.Create(aFBLibrary: TFBLibrary);
428 begin
429 inherited Create(aFBLibrary);
430 FStatus := TFB25Status.Create(self);
431 FStatusIntf := FStatus;
432 end;
433
434 destructor TFB25ClientAPI.Destroy;
435 begin
436 FStatusIntf := nil;
437 inherited Destroy;
438 end;
439
440
441 function TFB25ClientAPI.StatusVector: PISC_STATUS;
442 begin
443 Result := PISC_STATUS(FStatus.StatusVector);
444 end;
445
446 function TFB25ClientAPI.GetStatus: IStatus;
447 begin
448 Result := FStatus;
449 end;
450
451 function TFB25ClientAPI.AllocateDPB: IDPB;
452 begin
453 Result := TDPB.Create(self);
454 end;
455
456 function TFB25ClientAPI.OpenDatabase(DatabaseName: AnsiString; DPB: IDPB;
457 RaiseExceptionOnConnectError: boolean): IAttachment;
458 begin
459 Result := TFB25Attachment.Create(self,DatabaseName,DPB,RaiseExceptionOnConnectError);
460 if not Result.IsConnected then
461 Result := nil;
462 end;
463
464 function TFB25ClientAPI.CreateDatabase(DatabaseName: AnsiString; DPB: IDPB;
465 RaiseExceptionOnError: boolean): IAttachment;
466 begin
467 Result := TFB25Attachment.CreateDatabase(self,DatabaseName, DPB, RaiseExceptionOnError );
468 if (Result <> nil) and not Result.IsConnected then
469 Result := nil;
470 end;
471
472 function TFB25ClientAPI.CreateDatabase(sql: AnsiString; aSQLDialect: integer;
473 RaiseExceptionOnError: boolean): IAttachment;
474 begin
475 Result := TFB25Attachment.CreateDatabase(self,sql,aSQLDialect, RaiseExceptionOnError );
476 if (Result <> nil) and not Result.IsConnected then
477 Result := nil;
478 end;
479
480 function TFB25ClientAPI.AllocateSPB: ISPB;
481 begin
482 Result := TSPB.Create(self);
483 end;
484
485 function TFB25ClientAPI.AllocateTPB: ITPB;
486 begin
487 Result := TTPB.Create(self);
488 end;
489
490 function TFB25ClientAPI.GetServiceManager(ServerName: AnsiString;
491 Protocol: TProtocol; SPB: ISPB): IServiceManager;
492 begin
493 if HasServiceAPI then
494 Result := TFB25ServiceManager.Create(self,ServerName,Protocol,SPB)
495 else
496 Result := nil;
497 end;
498
499 function TFB25ClientAPI.GetServiceManager(ServerName: AnsiString;
500 Port: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager;
501 begin
502 if HasServiceAPI then
503 Result := TFB25ServiceManager.Create(self,ServerName,Protocol,SPB,Port)
504 else
505 Result := nil;
506 end;
507
508 function TFB25ClientAPI.StartTransaction(Attachments: array of IAttachment;
509 TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction;
510 begin
511 Result := TFB25Transaction.Create(self,Attachments,TPB,DefaultCompletion);
512 end;
513
514 function TFB25ClientAPI.StartTransaction(Attachments: array of IAttachment;
515 TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction;
516 begin
517 Result := TFB25Transaction.Create(self,Attachments,TPB,DefaultCompletion);
518 end;
519
520 function TFB25ClientAPI.HasServiceAPI: boolean;
521 begin
522 Result := IBServiceAPIPresent;
523 end;
524
525 function TFB25ClientAPI.HasRollbackRetaining: boolean;
526 begin
527 Result := assigned(isc_rollback_retaining);
528 end;
529
530 function TFB25ClientAPI.IsEmbeddedServer: boolean;
531 begin
532 Result := false;
533 {$IFDEF UNIX}
534 Result := Pos('libfbembed',FFBLibrary.GetLibraryName) = 1;
535 {$ENDIF}
536 {$IFDEF WINDOWS}
537 Result := CompareText(FFBLibrary.GetLibraryName,FIREBIRD_EMBEDDED) = 0;
538 {$ENDIF}
539 end;
540
541 function TFB25ClientAPI.GetClientMajor: integer;
542 begin
543 Result := 2;
544 end;
545
546 function TFB25ClientAPI.GetClientMinor: integer;
547 begin
548 Result := 5;
549 end;
550
551 function TFB25ClientAPI.HasMasterIntf: boolean;
552 begin
553 Result := false;
554 end;
555
556 function TFB25ClientAPI.GetIMaster: TObject;
557 begin
558 Result := nil;
559 end;
560
561 function TFB25ClientAPI.DecodeInteger(bufptr: PByte; len: short): integer;
562 begin
563 Result := isc_portable_integer(bufptr,len);
564 end;
565
566 procedure TFB25ClientAPI.SQLEncodeDate(aDate: TDateTime; bufptr: PByte);
567 var
568 tm_date: TCTimeStructure;
569 Yr, Mn, Dy: Word;
570 begin
571 DecodeDate(aDate, Yr, Mn, Dy);
572 with tm_date do begin
573 tm_sec := 0;
574 tm_min := 0;
575 tm_hour := 0;
576 tm_mday := Dy;
577 tm_mon := Mn - 1;
578 tm_year := Yr - 1900;
579 end;
580 isc_encode_sql_date(@tm_date, PISC_DATE(bufptr));
581 end;
582
583 function TFB25ClientAPI.SQLDecodeDate(bufptr: PByte): TDateTime;
584 var
585 tm_date: TCTimeStructure;
586 begin
587 isc_decode_sql_date(PISC_DATE(bufptr), @tm_date);
588 try
589 result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
590 Word(tm_date.tm_mday));
591 except
592 on E: EConvertError do begin
593 IBError(ibxeInvalidDataConversion, [nil]);
594 end;
595 end;
596 end;
597
598 procedure TFB25ClientAPI.SQLEncodeTime(aTime: TDateTime; bufptr: PByte);
599 var
600 tm_date: TCTimeStructure;
601 Hr, Mt, S: Word;
602 DMs: cardinal; {DMs = decimilliseconds}
603 begin
604 FBDecodeTime(aTime, Hr, Mt, S, DMs);
605 with tm_date do begin
606 tm_sec := S;
607 tm_min := Mt;
608 tm_hour := Hr;
609 tm_mday := 0;
610 tm_mon := 0;
611 tm_year := 0;
612 end;
613 isc_encode_sql_time(@tm_date, PISC_TIME(bufptr));
614 if DMs > 0 then
615 Inc(PISC_TIME(bufptr)^,DMs);
616 end;
617
618 function TFB25ClientAPI.SQLDecodeTime(bufptr: PByte): TDateTime;
619 var
620 tm_date: TCTimeStructure;
621 DMs: cardinal; {DMs = decimilliseconds}
622 begin
623 isc_decode_sql_time(PISC_TIME(bufptr), @tm_date);
624 try
625 DMs := PISC_TIME(bufptr)^ mod 10000;
626 result := FBEncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
627 Word(tm_date.tm_sec), DMs)
628 except
629 on E: EConvertError do begin
630 IBError(ibxeInvalidDataConversion, [nil]);
631 end;
632 end;
633 end;
634
635 procedure TFB25ClientAPI.SQLEncodeDateTime(aDateTime: TDateTime; bufptr: PByte);
636 var
637 tm_date: TCTimeStructure;
638 Yr, Mn, Dy, Hr, Mt, S, Ms: Word;
639 DMs: cardinal;
640 begin
641 DecodeDate(aDateTime, Yr, Mn, Dy);
642 FBDecodeTime(aDateTime, Hr, Mt, S, DMs);
643 with tm_date do begin
644 tm_sec := S;
645 tm_min := Mt;
646 tm_hour := Hr;
647 tm_mday := Dy;
648 tm_mon := Mn - 1;
649 tm_year := Yr - 1900;
650 end;
651 isc_encode_date(@tm_date, PISC_QUAD(bufptr));
652 if DMs > 0 then
653 Inc(PISC_TIMESTAMP(bufptr)^.timestamp_time,DMs);
654 end;
655
656 function TFB25ClientAPI.SQLDecodeDateTime(bufptr: PByte): TDateTime;
657 var
658 tm_date: TCTimeStructure;
659 Dmsecs: Word;
660 begin
661 isc_decode_date(PISC_QUAD(bufptr), @tm_date);
662 try
663 result := EncodeDate(Word(tm_date.tm_year + 1900), Word(tm_date.tm_mon + 1),
664 Word(tm_date.tm_mday));
665 Dmsecs := PISC_TIMESTAMP(bufptr)^.timestamp_time mod 10000;
666 if result >= 0 then
667 result := result + FBEncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
668 Word(tm_date.tm_sec), Dmsecs)
669 else
670 result := result - FBEncodeTime(Word(tm_date.tm_hour), Word(tm_date.tm_min),
671 Word(tm_date.tm_sec), Dmsecs)
672 except
673 on E: EConvertError do begin
674 IBError(ibxeInvalidDataConversion, [nil]);
675 end;
676 end;
677 end;
678
679 function TFB25ClientAPI.FormatStatus(Status: TFBStatus): AnsiString;
680 var psb: PStatusVector;
681 local_buffer: array[0..IBHugeLocalBufferLength - 1] of AnsiChar;
682 begin
683 psb := Status.StatusVector;
684 Result := '';
685 while isc_interprete(@local_buffer,@psb) > 0 do
686 begin
687 if (Result <> '') and (Result[Length(Result)] <> LF) then
688 Result := Result + LineEnding + '-';
689 Result := Result + strpas(local_buffer);
690 end;
691 end;
692
693 end.
694
695