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Comparing ibx/trunk/runtime/IBDatabaseInfo.pas (file contents):
Revision 1 by tony, Mon Jul 31 16:43:00 2000 UTC vs.
Revision 17 by tony, Sat Dec 28 19:22:24 2013 UTC

#	Line 1 | Line 1
1	<	{************************************************************************}
2	<	{                                                                        }
3	<	{       Borland Delphi Visual Component Library                          }
4	<	{       InterBase Express core components                                }
5	<	{                                                                        }
6	<	{       Copyright (c) 1998-2000 Inprise Corporation                      }
7	<	{                                                                        }
8	<	{    InterBase Express is based in part on the product                   }
9	<	{    Free IB Components, written by Gregory H. Deatz for                 }
10	<	{    Hoagland, Longo, Moran, Dunst & Doukas Company.                     }
11	<	{    Free IB Components is used under license.                           }
12	<	{                                                                        }
13	<	{    The contents of this file are subject to the InterBase              }
14	<	{    Public License Version 1.0 (the "License"); you may not             }
15	<	{    use this file except in compliance with the License. You            }
16	<	{    may obtain a copy of the License at http://www.Inprise.com/IPL.html }
17	<	{    Software distributed under the License is distributed on            }
18	<	{    an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either              }
19	<	{    express or implied. See the License for the specific language       }
20	<	{    governing rights and limitations under the License.                 }
21	<	{    The Original Code was created by InterBase Software Corporation     }
22	<	{       and its successors.                                              }
23	<	{    Portions created by Inprise Corporation are Copyright (C) Inprise   }
24	<	{       Corporation. All Rights Reserved.                                }
25	<	{    Contributor(s): Jeff Overcash                                       }
26	<	{                                                                        }
27	<	{************************************************************************}
28	<
29	<	unit IBDatabaseInfo;
30	<
31	<	interface
32	<
33	<	uses
34	<	Windows, SysUtils, Classes, Forms, ExtCtrls,
35	<	IBHeader, IBExternals, IB, IBDatabase;
36	<
37	<	type
38	<
39	<	TIBDatabaseInfo = class(TComponent)
40	<	protected
41	<	FIBLoaded: Boolean;
42	<	FDatabase: TIBDatabase;
43	<	FUserNames   : TStringList;
44	<	FBackoutCount: TStringList;
45	<	FDeleteCount: TStringList;
46	<	FExpungeCount: TStringList;
47	<	FInsertCount: TStringList;
48	<	FPurgeCount: TStringList;
49	<	FReadIdxCount: TStringList;
50	<	FReadSeqCount: TStringList;
51	<	FUpdateCount: TStringList;
52	<	function GetAllocation: Long;
53	<	function GetBaseLevel: Long;
54	<	function GetDBFileName: String;
55	<	function GetDBSiteName: String;
56	<	function GetDBImplementationNo: Long;
57	<	function GetDBImplementationClass: Long;
58	<	function GetNoReserve: Long;
59	<	function GetODSMinorVersion: Long;
60	<	function GetODSMajorVersion: Long;
61	<	function GetPageSize: Long;
62	<	function GetVersion: String;
63	<	function GetCurrentMemory: Long;
64	<	function GetForcedWrites: Long;
65	<	function GetMaxMemory: Long;
66	<	function GetNumBuffers: Long;
67	<	function GetSweepInterval: Long;
68	<	function GetUserNames: TStringList;
69	<	function GetFetches: Long;
70	<	function GetMarks: Long;
71	<	function GetReads: Long;
72	<	function GetWrites: Long;
73	<	function GetBackoutCount: TStringList;
74	<	function GetDeleteCount: TStringList;
75	<	function GetExpungeCount: TStringList;
76	<	function GetInsertCount: TStringList;
77	<	function GetPurgeCount: TStringList;
78	<	function GetReadIdxCount: TStringList;
79	<	function GetReadSeqCount: TStringList;
80	<	function GetUpdateCount: TStringList;
81	<	function GetOperationCounts(DBInfoCommand: Integer; FOperation: TStringList): TStringList;
82	<	function GetReadOnly: Long;
83	<	function GetLongDatabaseInfo(DatabaseInfoCommand: Integer): Long;
84	<	function GetStringDatabaseInfo(DatabaseInfoCommand: Integer): String;
85	<	function GetDBSQLDialect: Long;
86	<	public
87	<	constructor Create(AOwner: TComponent); override;
88	<	destructor Destroy; override;
89	<	function Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
90	<	property Allocation: Long read GetAllocation;
91	<	property BaseLevel: Long read GetBaseLevel;
92	<	property DBFileName: String read GetDBFileName;
93	<	property DBSiteName: String read GetDBSiteName;
94	<	property DBImplementationNo: Long read GetDBImplementationNo;
95	<	property DBImplementationClass: Long read GetDBImplementationClass;
96	<	property NoReserve: Long read GetNoReserve;
97	<	property ODSMinorVersion: Long read GetODSMinorVersion;
98	<	property ODSMajorVersion: Long read GetODSMajorVersion;
99	<	property PageSize: Long read GetPageSize;
100	<	property Version: String read GetVersion;
101	<	property CurrentMemory: Long read GetCurrentMemory;
102	<	property ForcedWrites: Long read GetForcedWrites;
103	<	property MaxMemory: Long read GetMaxMemory;
104	<	property NumBuffers: Long read GetNumBuffers;
105	<	property SweepInterval: Long read GetSweepInterval;
106	<	property UserNames: TStringList read GetUserNames;
107	<	property Fetches: Long read GetFetches;
108	<	property Marks: Long read GetMarks;
109	<	property Reads: Long read GetReads;
110	<	property Writes: Long read GetWrites;
111	<	property BackoutCount: TStringList read GetBackoutCount;
112	<	property DeleteCount: TStringList read GetDeleteCount;
113	<	property ExpungeCount: TStringList read GetExpungeCount;
114	<	property InsertCount: TStringList read GetInsertCount;
115	<	property PurgeCount: TStringList read GetPurgeCount;
116	<	property ReadIdxCount: TStringList read GetReadIdxCount;
117	<	property ReadSeqCount: TStringList read GetReadSeqCount;
118	<	property UpdateCount: TStringList read GetUpdateCount;
119	<	property DBSQLDialect : Long read GetDBSQLDialect;
120	<	property ReadOnly: Long read GetReadOnly;
121	<	published
122	<	property Database: TIBDatabase read FDatabase write FDatabase;
123	<	end;
124	<
125	<	implementation
126	<
127	<	uses
128	<	IBIntf;
129	<
130	<	{ TIBDatabaseInfo }
131	<
132	<	constructor TIBDatabaseInfo.Create(AOwner: TComponent);
133	<	begin
134	<	inherited Create(AOwner);
135	<	FIBLoaded := False;
136	<	CheckIBLoaded;
137	<	FIBLoaded := True;
138	<	FUserNames := TStringList.Create;
139	<	FBackoutCount                        := nil;
140	<	FDeleteCount                         := nil;
141	<	FExpungeCount                        := nil;
142	<	FInsertCount                         := nil;
143	<	FPurgeCount                          := nil;
144	<	FReadIdxCount                        := nil;
145	<	FReadSeqCount                        := nil;
146	<	FUpdateCount                         := nil;
147	<	end;
148	<
149	<	destructor TIBDatabaseInfo.Destroy;
150	<	begin
151	<	if FIBLoaded then
152	<	begin
153	<	FUserNames.Free;
154	<	FBackoutCount.Free;
155	<	FDeleteCount.Free;
156	<	FExpungeCount.Free;
157	<	FInsertCount.Free;
158	<	FPurgeCount.Free;
159	<	FReadIdxCount.Free;
160	<	FReadSeqCount.Free;
161	<	FUpdateCount.Free;
162	<	end;
163	<	inherited Destroy;
164	<	end;
165	<
166	<
167	<	function TIBDatabaseInfo.Call(ErrCode: ISC_STATUS;
168	<	RaiseError: Boolean): ISC_STATUS;
169	<	begin
170	<	result := ErrCode;
171	<	if RaiseError and (ErrCode > 0) then
172	<	IBDataBaseError;
173	<	end;
174	<	function TIBDatabaseInfo.GetAllocation: Long;
175	<	begin
176	<	result := GetLongDatabaseInfo(isc_info_allocation);
177	<	end;
178	<
179	<	function TIBDatabaseInfo.GetBaseLevel: Long;
180	<	var
181	<	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
182	<	DatabaseInfoCommand: Char;
183	<	begin
184	<	DatabaseInfoCommand := Char(isc_info_base_level);
185	<	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
186	<	IBLocalBufferLength, local_buffer), True);
187	<	result := isc_vax_integer(@local_buffer[4], 1);
188	<	end;
189	<
190	<	function TIBDatabaseInfo.GetDBFileName: String;
191	<	var
192	<	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
193	<	DatabaseInfoCommand: Char;
194	<	begin
195	<	DatabaseInfoCommand := Char(isc_info_db_id);
196	<	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
197	<	IBLocalBufferLength, local_buffer), True);
198	<	local_buffer[5 + Int(local_buffer[4])] := #0;
199	<	result := String(PChar(@local_buffer[5]));
200	<	end;
201	<
202	<	function TIBDatabaseInfo.GetDBSiteName: String;
203	<	var
204	<	local_buffer: array[0..IBBigLocalBufferLength - 1] of Char;
205	<	p: PChar;
206	<	DatabaseInfoCommand: Char;
207	<	begin
208	<	DatabaseInfoCommand := Char(isc_info_db_id);
209	<	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
210	<	IBLocalBufferLength, local_buffer), True);
211	<	p := @local_buffer[5 + Int(local_buffer[4])]; { DBSiteName Length }
212	<	p := p + Int(p^) + 1;                         { End of DBSiteName }
213	<	p^ := #0;                                     { Null it }
214	<	result := String(PChar(@local_buffer[6 + Int(local_buffer[4])]));
215	<	end;
216	<
217	<	function TIBDatabaseInfo.GetDBImplementationNo: Long;
218	<	var
219	<	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
220	<	DatabaseInfoCommand: Char;
221	<	begin
222	<	DatabaseInfoCommand := Char(isc_info_implementation);
223	<	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
224	<	IBLocalBufferLength, local_buffer), True);
225	<	result := isc_vax_integer(@local_buffer[3], 1);
226	<	end;
227	<
228	<	function TIBDatabaseInfo.GetDBImplementationClass: Long;
229	<	var
230	<	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
231	<	DatabaseInfoCommand: Char;
232	<	begin
233	<	DatabaseInfoCommand := Char(isc_info_implementation);
234	<	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
235	<	IBLocalBufferLength, local_buffer), True);
236	<	result := isc_vax_integer(@local_buffer[4], 1);
237	<	end;
238	<
239	<	function TIBDatabaseInfo.GetNoReserve: Long;
240	<	begin
241	<	result := GetLongDatabaseInfo(isc_info_no_reserve);
242	<	end;
243	<
244	<	function TIBDatabaseInfo.GetODSMinorVersion: Long;
245	<	begin
246	<	result := GetLongDatabaseInfo(isc_info_ods_minor_version);
247	<	end;
248	<
249	<	function TIBDatabaseInfo.GetODSMajorVersion: Long;
250	<	begin
251	<	result := GetLongDatabaseInfo(isc_info_ods_version);
252	<	end;
253	<
254	<	function TIBDatabaseInfo.GetPageSize: Long;
255	<	begin
256	<	result := GetLongDatabaseInfo(isc_info_page_size);
257	<	end;
258	<
259	<	function TIBDatabaseInfo.GetVersion: String;
260	<	var
261	<	local_buffer: array[0..IBBigLocalBufferLength - 1] of Char;
262	<	DatabaseInfoCommand: Char;
263	<	begin
264	<	DatabaseInfoCommand := Char(isc_info_version);
265	<	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
266	<	IBBigLocalBufferLength, local_buffer), True);
267	<	local_buffer[5 + Int(local_buffer[4])] := #0;
268	<	result := String(PChar(@local_buffer[5]));
269	<	end;
270	<
271	<	function TIBDatabaseInfo.GetCurrentMemory: Long;
272	<	begin
273	<	result := GetLongDatabaseInfo(isc_info_current_memory);
274	<	end;
275	<
276	<	function TIBDatabaseInfo.GetForcedWrites: Long;
277	<	begin
278	<	result := GetLongDatabaseInfo(isc_info_forced_writes);
279	<	end;
280	<
281	<	function TIBDatabaseInfo.GetMaxMemory: Long;
282	<	begin
283	<	result := GetLongDatabaseInfo(isc_info_max_memory);
284	<	end;
285	<
286	<	function TIBDatabaseInfo.GetNumBuffers: Long;
287	<	begin
288	<	result := GetLongDatabaseInfo(isc_info_num_buffers);
289	<	end;
290	<
291	<	function TIBDatabaseInfo.GetSweepInterval: Long;
292	<	begin
293	<	result := GetLongDatabaseInfo(isc_info_sweep_interval);
294	<	end;
295	<
296	<	function TIBDatabaseInfo.GetUserNames: TStringList;
297	<	var
298	<	local_buffer: array[0..IBHugeLocalBufferLength - 1] of Char;
299	<	temp_buffer: array[0..IBLocalBufferLength - 2] of Char;
300	<	DatabaseInfoCommand: Char;
301	<	i, user_length: Integer;
302	<	begin
303	<	result := FUserNames;
304	<	DatabaseInfoCommand := Char(isc_info_user_names);
305	<	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
306	<	IBHugeLocalBufferLength, local_buffer), True);
307	<	FUserNames.Clear;
308	<	i := 0;
309	<	while local_buffer[i] = Char(isc_info_user_names) do
310	<	begin
311	<	Inc(i, 3); { skip "isc_info_user_names byte" & two unknown bytes of structure (see below) }
312	<	user_length := Long(local_buffer[i]);
313	<	Inc(i,1);
314	<	Move(local_buffer[i], temp_buffer[0], user_length);
315	<	Inc(i, user_length);
316	<	temp_buffer[user_length] := #0;
317	<	FUserNames.Add(String(temp_buffer));
318	<	end;
319	<	end;
320	<
321	<	function TIBDatabaseInfo.GetFetches: Long;
322	<	begin
323	<	result := GetLongDatabaseInfo(isc_info_fetches);
324	<	end;
325	<
326	<	function TIBDatabaseInfo.GetMarks: Long;
327	<	begin
328	<	result := GetLongDatabaseInfo(isc_info_marks);
329	<	end;
330	<
331	<	function TIBDatabaseInfo.GetReads: Long;
332	<	begin
333	<	result := GetLongDatabaseInfo(isc_info_reads);
334	<	end;
335	<
336	<	function TIBDatabaseInfo.GetWrites: Long;
337	<	begin
338	<	result := GetLongDatabaseInfo(isc_info_writes);
339	<	end;
340	<
341	<	function TIBDatabaseInfo.GetOperationCounts(DBInfoCommand: Integer; FOperation: TStringList): TStringList;
342	<	var
343	<	local_buffer: array[0..IBHugeLocalBufferLength - 1] of Char;
344	<	DatabaseInfoCommand: Char;
345	<	i, qtd_tables, id_table, qtd_operations: Integer;
346	<	begin
347	<	if FOperation = nil then FOperation := TStringList.Create;
348	<	result := FOperation;
349	<	DatabaseInfoCommand := Char(DBInfoCommand);
350	<	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
351	<	IBHugeLocalBufferLength, local_buffer), True);
352	<	FOperation.Clear;
353	<	{ 1. 1 byte specifying the item type requested (e.g., isc_info_insert_count).
354	<	2. 2 bytes telling how many bytes compose the subsequent value pairs.
355	<	3. A pair of values for each table in the database on wich the requested
356	<	type of operation has occurred since the database was last attached.
357	<	Each pair consists of:
358	<	1. 2 bytes specifying the table ID.
359	<	2. 4 bytes listing the number of operations (e.g., inserts) done on that table.
360	<	}
361	<	qtd_tables := trunc(isc_vax_integer(@local_buffer[1],2)/6);
362	<	for i := 0 to qtd_tables - 1 do
363	<	begin
364	<	id_table := isc_vax_integer(@local_buffer[3+(i*6)],2);
365	<	qtd_operations := isc_vax_integer(@local_buffer[5+(i*6)],4);
366	<	FOperation.Add(IntToStr(id_table)+'='+IntToStr(qtd_operations));
367	<	end;
368	<	end;
369	<
370	<	function TIBDatabaseInfo.GetBackoutCount: TStringList;
371	<	begin
372	<	result := GetOperationCounts(isc_info_backout_count,FBackoutCount);
373	<	end;
374	<
375	<	function TIBDatabaseInfo.GetDeleteCount: TStringList;
376	<	begin
377	<	result := GetOperationCounts(isc_info_delete_count,FDeleteCount);
378	<	end;
379	<
380	<	function TIBDatabaseInfo.GetExpungeCount: TStringList;
381	<	begin
382	<	result := GetOperationCounts(isc_info_expunge_count,FExpungeCount);
383	<	end;
384	<
385	<	function TIBDatabaseInfo.GetInsertCount: TStringList;
386	<	begin
387	<	result := GetOperationCounts(isc_info_insert_count,FInsertCount);
388	<	end;
389	<
390	<	function TIBDatabaseInfo.GetPurgeCount: TStringList;
391	<	begin
392	<	result := GetOperationCounts(isc_info_purge_count,FPurgeCount);
393	<	end;
394	<
395	<	function TIBDatabaseInfo.GetReadIdxCount: TStringList;
396	<	begin
397	<	result := GetOperationCounts(isc_info_read_idx_count,FReadIdxCount);
398	<	end;
399	<
400	<	function TIBDatabaseInfo.GetReadSeqCount: TStringList;
401	<	begin
402	<	result := GetOperationCounts(isc_info_read_seq_count,FReadSeqCount);
403	<	end;
404	<
405	<	function TIBDatabaseInfo.GetUpdateCount: TStringList;
406	<	begin
407	<	result := GetOperationCounts(isc_info_update_count,FUpdateCount);
408	<	end;
409	<
410	<	function TIBDatabaseInfo.GetReadOnly: Long;
411	<	begin
412	<	result := GetLongDatabaseInfo(isc_info_db_read_only);
413	<	end;
414	<
415	<	function TIBDatabaseInfo.GetLongDatabaseInfo(DatabaseInfoCommand: Integer): Long;
416	<	var
417	<	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
418	<	length: Integer;
419	<	_DatabaseInfoCommand: Char;
420	<	begin
421	<	_DatabaseInfoCommand := Char(DatabaseInfoCommand);
422	<	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @_DatabaseInfoCommand,
423	<	IBLocalBufferLength, local_buffer), True);
424	<	length := isc_vax_integer(@local_buffer[1], 2);
425	<	result := isc_vax_integer(@local_buffer[3], length);
426	<	end;
427	<
428	<	function TIBDatabaseInfo.GetStringDatabaseInfo(DatabaseInfoCommand: Integer): String;
429	<	var
430	<	local_buffer: array[0..IBBigLocalBufferLength - 1] of Char;
431	<	_DatabaseInfoCommand: Char;
432	<	begin
433	<	_DatabaseInfoCommand := Char(DatabaseInfoCommand);
434	<	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @_DatabaseInfoCommand,
435	<	IBBigLocalBufferLength, local_buffer), True);
436	<	local_buffer[4 + Int(local_buffer[3])] := #0;
437	<	result := String(PChar(@local_buffer[4]));
438	<	end;
439	<
440	<
441	<	function TIBDatabaseInfo.GetDBSQLDialect: Integer;
442	<	var
443	<	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
444	<	length: Integer;
445	<	DatabaseInfoCommand: Char;
446	<	begin
447	<	DatabaseInfoCommand := Char(isc_info_db_SQL_Dialect);
448	<	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
449	<	IBLocalBufferLength, local_buffer), True);
450	<	if (local_buffer[0] <> Char(isc_info_db_SQL_dialect)) then
451	<	result := 1
452	<	else begin
453	<	length := isc_vax_integer(@local_buffer[1], 2);
454	<	result := isc_vax_integer(@local_buffer[3], length);
455	<	end;
456	<	end;
457	<
458	<
459	<	end.
1	>	{************************************************************************}
2	>	{                                                                        }
3	>	{       Borland Delphi Visual Component Library                          }
4	>	{       InterBase Express core components                                }
5	>	{                                                                        }
6	>	{       Copyright (c) 1998-2000 Inprise Corporation                      }
7	>	{                                                                        }
8	>	{    InterBase Express is based in part on the product                   }
9	>	{    Free IB Components, written by Gregory H. Deatz for                 }
10	>	{    Hoagland, Longo, Moran, Dunst & Doukas Company.                     }
11	>	{    Free IB Components is used under license.                           }
12	>	{                                                                        }
13	>	{    The contents of this file are subject to the InterBase              }
14	>	{    Public License Version 1.0 (the "License"); you may not             }
15	>	{    use this file except in compliance with the License. You            }
16	>	{    may obtain a copy of the License at http://www.Inprise.com/IPL.html }
17	>	{    Software distributed under the License is distributed on            }
18	>	{    an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either              }
19	>	{    express or implied. See the License for the specific language       }
20	>	{    governing rights and limitations under the License.                 }
21	>	{    Portions created by Inprise Corporation are Copyright (C) Inprise   }
22	>	{       Corporation. All Rights Reserved.                                }
23	>	{    Contributor(s): Jeff Overcash                                       }
24	>	{                                                                        }
25	>	{    IBX For Lazarus (Firebird Express)                                  }
26	>	{    Contributor: Tony Whyman, MWA Software http://www.mwasoftware.co.uk }
27	>	{    Portions created by MWA Software are copyright McCallum Whyman      }
28	>	{    Associates Ltd 2011                                                 }
29	>	{                                                                        }
30	>	{************************************************************************}
31	>
32	>	unit IBDatabaseInfo;
33	>
34	>	{$Mode Delphi}
35	>
36	>	interface
37	>
38	>	uses
39	>	SysUtils, Classes, IBHeader, IBExternals, IB, IBDatabase;
40	>
41	>	type
42	>
43	>	TIBDatabaseInfo = class(TComponent)
44	>	protected
45	>	FIBLoaded: Boolean;
46	>	FDatabase: TIBDatabase;
47	>	FUserNames   : TStringList;
48	>	FBackoutCount: TStringList;
49	>	FDeleteCount: TStringList;
50	>	FExpungeCount: TStringList;
51	>	FInsertCount: TStringList;
52	>	FPurgeCount: TStringList;
53	>	FReadIdxCount: TStringList;
54	>	FReadSeqCount: TStringList;
55	>	FUpdateCount: TStringList;
56	>	function GetAllocation: Long;
57	>	function GetBaseLevel: Long;
58	>	function GetDBFileName: String;
59	>	function GetDBSiteName: String;
60	>	function GetDBImplementationNo: Long;
61	>	function GetDBImplementationClass: Long;
62	>	function GetNoReserve: Long;
63	>	function GetODSMinorVersion: Long;
64	>	function GetODSMajorVersion: Long;
65	>	function GetPageSize: Long;
66	>	function GetVersion: String;
67	>	function GetCurrentMemory: Long;
68	>	function GetForcedWrites: Long;
69	>	function GetMaxMemory: Long;
70	>	function GetNumBuffers: Long;
71	>	function GetSweepInterval: Long;
72	>	function GetUserNames: TStringList;
73	>	function GetFetches: Long;
74	>	function GetMarks: Long;
75	>	function GetReads: Long;
76	>	function GetWrites: Long;
77	>	function GetBackoutCount: TStringList;
78	>	function GetDeleteCount: TStringList;
79	>	function GetExpungeCount: TStringList;
80	>	function GetInsertCount: TStringList;
81	>	function GetPurgeCount: TStringList;
82	>	function GetReadIdxCount: TStringList;
83	>	function GetReadSeqCount: TStringList;
84	>	function GetUpdateCount: TStringList;
85	>	function GetOperationCounts(DBInfoCommand: Integer; FOperation: TStringList): TStringList;
86	>	function GetReadOnly: Long;
87	>	function GetStringDatabaseInfo(DatabaseInfoCommand: Integer): String;
88	>	function GetDBSQLDialect: Long;
89	>	public
90	>	constructor Create(AOwner: TComponent); override;
91	>	destructor Destroy; override;
92	>	function Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
93	>	function GetLongDatabaseInfo(DatabaseInfoCommand: Integer): Long;
94	>	property Allocation: Long read GetAllocation;
95	>	property BaseLevel: Long read GetBaseLevel;
96	>	property DBFileName: String read GetDBFileName;
97	>	property DBSiteName: String read GetDBSiteName;
98	>	property DBImplementationNo: Long read GetDBImplementationNo;
99	>	property DBImplementationClass: Long read GetDBImplementationClass;
100	>	property NoReserve: Long read GetNoReserve;
101	>	property ODSMinorVersion: Long read GetODSMinorVersion;
102	>	property ODSMajorVersion: Long read GetODSMajorVersion;
103	>	property PageSize: Long read GetPageSize;
104	>	property Version: String read GetVersion;
105	>	property CurrentMemory: Long read GetCurrentMemory;
106	>	property ForcedWrites: Long read GetForcedWrites;
107	>	property MaxMemory: Long read GetMaxMemory;
108	>	property NumBuffers: Long read GetNumBuffers;
109	>	property SweepInterval: Long read GetSweepInterval;
110	>	property UserNames: TStringList read GetUserNames;
111	>	property Fetches: Long read GetFetches;
112	>	property Marks: Long read GetMarks;
113	>	property Reads: Long read GetReads;
114	>	property Writes: Long read GetWrites;
115	>	property BackoutCount: TStringList read GetBackoutCount;
116	>	property DeleteCount: TStringList read GetDeleteCount;
117	>	property ExpungeCount: TStringList read GetExpungeCount;
118	>	property InsertCount: TStringList read GetInsertCount;
119	>	property PurgeCount: TStringList read GetPurgeCount;
120	>	property ReadIdxCount: TStringList read GetReadIdxCount;
121	>	property ReadSeqCount: TStringList read GetReadSeqCount;
122	>	property UpdateCount: TStringList read GetUpdateCount;
123	>	property DBSQLDialect : Long read GetDBSQLDialect;
124	>	property ReadOnly: Long read GetReadOnly;
125	>	published
126	>	property Database: TIBDatabase read FDatabase write FDatabase;
127	>	end;
128	>
129	>	implementation
130	>
131	>	uses
132	>	IBIntf;
133	>
134	>	{ TIBDatabaseInfo }
135	>
136	>	constructor TIBDatabaseInfo.Create(AOwner: TComponent);
137	>	begin
138	>	inherited Create(AOwner);
139	>	FIBLoaded := False;
140	>	CheckIBLoaded;
141	>	FIBLoaded := True;
142	>	FUserNames := TStringList.Create;
143	>	FBackoutCount                        := nil;
144	>	FDeleteCount                         := nil;
145	>	FExpungeCount                        := nil;
146	>	FInsertCount                         := nil;
147	>	FPurgeCount                          := nil;
148	>	FReadIdxCount                        := nil;
149	>	FReadSeqCount                        := nil;
150	>	FUpdateCount                         := nil;
151	>	end;
152	>
153	>	destructor TIBDatabaseInfo.Destroy;
154	>	begin
155	>	if FIBLoaded then
156	>	begin
157	>	FUserNames.Free;
158	>	FBackoutCount.Free;
159	>	FDeleteCount.Free;
160	>	FExpungeCount.Free;
161	>	FInsertCount.Free;
162	>	FPurgeCount.Free;
163	>	FReadIdxCount.Free;
164	>	FReadSeqCount.Free;
165	>	FUpdateCount.Free;
166	>	end;
167	>	inherited Destroy;
168	>	end;
169	>
170	>
171	>	function TIBDatabaseInfo.Call(ErrCode: ISC_STATUS;
172	>	RaiseError: Boolean): ISC_STATUS;
173	>	begin
174	>	result := ErrCode;
175	>	if RaiseError and (ErrCode > 0) then
176	>	IBDataBaseError;
177	>	end;
178	>	function TIBDatabaseInfo.GetAllocation: Long;
179	>	begin
180	>	result := GetLongDatabaseInfo(isc_info_allocation);
181	>	end;
182	>
183	>	function TIBDatabaseInfo.GetBaseLevel: Long;
184	>	var
185	>	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
186	>	DatabaseInfoCommand: Char;
187	>	begin
188	>	DatabaseInfoCommand := Char(isc_info_base_level);
189	>	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
190	>	IBLocalBufferLength, local_buffer), True);
191	>	result := isc_vax_integer(@local_buffer[4], 1);
192	>	end;
193	>
194	>	function TIBDatabaseInfo.GetDBFileName: String;
195	>	var
196	>	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
197	>	DatabaseInfoCommand: Char;
198	>	begin
199	>	DatabaseInfoCommand := Char(isc_info_db_id);
200	>	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
201	>	IBLocalBufferLength, local_buffer), True);
202	>	local_buffer[5 + Int(local_buffer[4])] := #0;
203	>	result := String(PChar(@local_buffer[5]));
204	>	end;
205	>
206	>	function TIBDatabaseInfo.GetDBSiteName: String;
207	>	var
208	>	local_buffer: array[0..IBBigLocalBufferLength - 1] of Char;
209	>	p: PChar;
210	>	DatabaseInfoCommand: Char;
211	>	begin
212	>	DatabaseInfoCommand := Char(isc_info_db_id);
213	>	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
214	>	IBLocalBufferLength, local_buffer), True);
215	>	p := @local_buffer[5 + Int(local_buffer[4])]; { DBSiteName Length }
216	>	p := p + Int(p^) + 1;                         { End of DBSiteName }
217	>	p^ := #0;                                     { Null it }
218	>	result := String(PChar(@local_buffer[6 + Int(local_buffer[4])]));
219	>	end;
220	>
221	>	function TIBDatabaseInfo.GetDBImplementationNo: Long;
222	>	var
223	>	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
224	>	DatabaseInfoCommand: Char;
225	>	begin
226	>	DatabaseInfoCommand := Char(isc_info_implementation);
227	>	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
228	>	IBLocalBufferLength, local_buffer), True);
229	>	result := isc_vax_integer(@local_buffer[3], 1);
230	>	end;
231	>
232	>	function TIBDatabaseInfo.GetDBImplementationClass: Long;
233	>	var
234	>	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
235	>	DatabaseInfoCommand: Char;
236	>	begin
237	>	DatabaseInfoCommand := Char(isc_info_implementation);
238	>	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
239	>	IBLocalBufferLength, local_buffer), True);
240	>	result := isc_vax_integer(@local_buffer[4], 1);
241	>	end;
242	>
243	>	function TIBDatabaseInfo.GetNoReserve: Long;
244	>	begin
245	>	result := GetLongDatabaseInfo(isc_info_no_reserve);
246	>	end;
247	>
248	>	function TIBDatabaseInfo.GetODSMinorVersion: Long;
249	>	begin
250	>	result := GetLongDatabaseInfo(isc_info_ods_minor_version);
251	>	end;
252	>
253	>	function TIBDatabaseInfo.GetODSMajorVersion: Long;
254	>	begin
255	>	result := GetLongDatabaseInfo(isc_info_ods_version);
256	>	end;
257	>
258	>	function TIBDatabaseInfo.GetPageSize: Long;
259	>	begin
260	>	result := GetLongDatabaseInfo(isc_info_page_size);
261	>	end;
262	>
263	>	function TIBDatabaseInfo.GetVersion: String;
264	>	var
265	>	local_buffer: array[0..IBBigLocalBufferLength - 1] of Char;
266	>	DatabaseInfoCommand: Char;
267	>	begin
268	>	DatabaseInfoCommand := Char(isc_info_version);
269	>	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
270	>	IBBigLocalBufferLength, local_buffer), True);
271	>	local_buffer[5 + Int(local_buffer[4])] := #0;
272	>	result := String(PChar(@local_buffer[5]));
273	>	end;
274	>
275	>	function TIBDatabaseInfo.GetCurrentMemory: Long;
276	>	begin
277	>	result := GetLongDatabaseInfo(isc_info_current_memory);
278	>	end;
279	>
280	>	function TIBDatabaseInfo.GetForcedWrites: Long;
281	>	begin
282	>	result := GetLongDatabaseInfo(isc_info_forced_writes);
283	>	end;
284	>
285	>	function TIBDatabaseInfo.GetMaxMemory: Long;
286	>	begin
287	>	result := GetLongDatabaseInfo(isc_info_max_memory);
288	>	end;
289	>
290	>	function TIBDatabaseInfo.GetNumBuffers: Long;
291	>	begin
292	>	result := GetLongDatabaseInfo(isc_info_num_buffers);
293	>	end;
294	>
295	>	function TIBDatabaseInfo.GetSweepInterval: Long;
296	>	begin
297	>	result := GetLongDatabaseInfo(isc_info_sweep_interval);
298	>	end;
299	>
300	>	function TIBDatabaseInfo.GetUserNames: TStringList;
301	>	var
302	>	local_buffer: array[0..IBHugeLocalBufferLength - 1] of Char;
303	>	temp_buffer: array[0..IBLocalBufferLength - 2] of Char;
304	>	DatabaseInfoCommand: Char;
305	>	i, user_length: Integer;
306	>	begin
307	>	result := FUserNames;
308	>	DatabaseInfoCommand := Char(isc_info_user_names);
309	>	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
310	>	IBHugeLocalBufferLength, local_buffer), True);
311	>	FUserNames.Clear;
312	>	i := 0;
313	>	while local_buffer[i] = Char(isc_info_user_names) do
314	>	begin
315	>	Inc(i, 3); { skip "isc_info_user_names byte" & two unknown bytes of structure (see below) }
316	>	user_length := Long(local_buffer[i]);
317	>	Inc(i,1);
318	>	Move(local_buffer[i], temp_buffer[0], user_length);
319	>	Inc(i, user_length);
320	>	temp_buffer[user_length] := #0;
321	>	FUserNames.Add(String(temp_buffer));
322	>	end;
323	>	end;
324	>
325	>	function TIBDatabaseInfo.GetFetches: Long;
326	>	begin
327	>	result := GetLongDatabaseInfo(isc_info_fetches);
328	>	end;
329	>
330	>	function TIBDatabaseInfo.GetMarks: Long;
331	>	begin
332	>	result := GetLongDatabaseInfo(isc_info_marks);
333	>	end;
334	>
335	>	function TIBDatabaseInfo.GetReads: Long;
336	>	begin
337	>	result := GetLongDatabaseInfo(isc_info_reads);
338	>	end;
339	>
340	>	function TIBDatabaseInfo.GetWrites: Long;
341	>	begin
342	>	result := GetLongDatabaseInfo(isc_info_writes);
343	>	end;
344	>
345	>	function TIBDatabaseInfo.GetOperationCounts(DBInfoCommand: Integer; FOperation: TStringList): TStringList;
346	>	var
347	>	local_buffer: array[0..IBHugeLocalBufferLength - 1] of Char;
348	>	DatabaseInfoCommand: Char;
349	>	i, qtd_tables, id_table, qtd_operations: Integer;
350	>	begin
351	>	if FOperation = nil then FOperation := TStringList.Create;
352	>	result := FOperation;
353	>	DatabaseInfoCommand := Char(DBInfoCommand);
354	>	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
355	>	IBHugeLocalBufferLength, local_buffer), True);
356	>	FOperation.Clear;
357	>	{ 1. 1 byte specifying the item type requested (e.g., isc_info_insert_count).
358	>	2. 2 bytes telling how many bytes compose the subsequent value pairs.
359	>	3. A pair of values for each table in the database on wich the requested
360	>	type of operation has occurred since the database was last attached.
361	>	Each pair consists of:
362	>	1. 2 bytes specifying the table ID.
363	>	2. 4 bytes listing the number of operations (e.g., inserts) done on that table.
364	>	}
365	>	qtd_tables := trunc(isc_vax_integer(@local_buffer[1],2)/6);
366	>	for i := 0 to qtd_tables - 1 do
367	>	begin
368	>	id_table := isc_vax_integer(@local_buffer[3+(i*6)],2);
369	>	qtd_operations := isc_vax_integer(@local_buffer[5+(i*6)],4);
370	>	FOperation.Add(IntToStr(id_table)+'='+IntToStr(qtd_operations));
371	>	end;
372	>	end;
373	>
374	>	function TIBDatabaseInfo.GetBackoutCount: TStringList;
375	>	begin
376	>	result := GetOperationCounts(isc_info_backout_count,FBackoutCount);
377	>	end;
378	>
379	>	function TIBDatabaseInfo.GetDeleteCount: TStringList;
380	>	begin
381	>	result := GetOperationCounts(isc_info_delete_count,FDeleteCount);
382	>	end;
383	>
384	>	function TIBDatabaseInfo.GetExpungeCount: TStringList;
385	>	begin
386	>	result := GetOperationCounts(isc_info_expunge_count,FExpungeCount);
387	>	end;
388	>
389	>	function TIBDatabaseInfo.GetInsertCount: TStringList;
390	>	begin
391	>	result := GetOperationCounts(isc_info_insert_count,FInsertCount);
392	>	end;
393	>
394	>	function TIBDatabaseInfo.GetPurgeCount: TStringList;
395	>	begin
396	>	result := GetOperationCounts(isc_info_purge_count,FPurgeCount);
397	>	end;
398	>
399	>	function TIBDatabaseInfo.GetReadIdxCount: TStringList;
400	>	begin
401	>	result := GetOperationCounts(isc_info_read_idx_count,FReadIdxCount);
402	>	end;
403	>
404	>	function TIBDatabaseInfo.GetReadSeqCount: TStringList;
405	>	begin
406	>	result := GetOperationCounts(isc_info_read_seq_count,FReadSeqCount);
407	>	end;
408	>
409	>	function TIBDatabaseInfo.GetUpdateCount: TStringList;
410	>	begin
411	>	result := GetOperationCounts(isc_info_update_count,FUpdateCount);
412	>	end;
413	>
414	>	function TIBDatabaseInfo.GetReadOnly: Long;
415	>	begin
416	>	result := GetLongDatabaseInfo(isc_info_db_read_only);
417	>	end;
418	>
419	>	function TIBDatabaseInfo.GetLongDatabaseInfo(DatabaseInfoCommand: Integer): Long;
420	>	var
421	>	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
422	>	length: Integer;
423	>	_DatabaseInfoCommand: Char;
424	>	begin
425	>	_DatabaseInfoCommand := Char(DatabaseInfoCommand);
426	>	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @_DatabaseInfoCommand,
427	>	IBLocalBufferLength, local_buffer), True);
428	>	length := isc_vax_integer(@local_buffer[1], 2);
429	>	result := isc_vax_integer(@local_buffer[3], length);
430	>	end;
431	>
432	>	function TIBDatabaseInfo.GetStringDatabaseInfo(DatabaseInfoCommand: Integer): String;
433	>	var
434	>	local_buffer: array[0..IBBigLocalBufferLength - 1] of Char;
435	>	_DatabaseInfoCommand: Char;
436	>	begin
437	>	_DatabaseInfoCommand := Char(DatabaseInfoCommand);
438	>	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @_DatabaseInfoCommand,
439	>	IBBigLocalBufferLength, local_buffer), True);
440	>	local_buffer[4 + Int(local_buffer[3])] := #0;
441	>	result := String(PChar(@local_buffer[4]));
442	>	end;
443	>
444	>
445	>	function TIBDatabaseInfo.GetDBSQLDialect: Integer;
446	>	var
447	>	local_buffer: array[0..IBLocalBufferLength - 1] of Char;
448	>	length: Integer;
449	>	DatabaseInfoCommand: Char;
450	>	begin
451	>	DatabaseInfoCommand := Char(isc_info_db_SQL_Dialect);
452	>	Call(isc_database_info(StatusVector, @FDatabase.Handle, 1, @DatabaseInfoCommand,
453	>	IBLocalBufferLength, local_buffer), True);
454	>	if (local_buffer[0] <> Char(isc_info_db_SQL_dialect)) then
455	>	result := 1
456	>	else begin
457	>	length := isc_vax_integer(@local_buffer[1], 2);
458	>	result := isc_vax_integer(@local_buffer[3], length);
459	>	end;
460	>	end;
461	>
462	>
463	>	end.

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