examples/dbInfo/Unit1.pas

(*
 *  IBX For Lazarus (Firebird Express)
 *
 *  The contents of this file are subject to the Initial Developer's
 *  Public License Version 1.0 (the "License"); you may not use this
 *  file except in compliance with the License. You may obtain a copy
 *  of the License here:
 *
 *    http://www.firebirdsql.org/index.php?op=doc&id=idpl
 *
 *  Software distributed under the License is distributed on an "AS
 *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 *  implied. See the License for the specific language governing rights
 *  and limitations under the License.
 *
 *  The Initial Developer of the Original Code is Tony Whyman.
 *
 *  The Original Code is (C) 2015 Tony Whyman, MWA Software
 *  (http://www.mwasoftware.co.uk).
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): ______________________________________.
 *
*) 
            
unit Unit1;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, StdCtrls,
  IB, IBDatabase, IBDatabaseInfo, IBQuery, IBExternals;

type

  { TForm1 }

  TForm1 = class(TForm)
    IBDatabase1: TIBDatabase;
    IBDatabaseInfo1: TIBDatabaseInfo;
    IBTransaction1: TIBTransaction;
    Memo1: TMemo;
    TableNameLookup: TIBQuery;
    procedure FormShow(Sender: TObject);
    procedure IBDatabase1AfterConnect(Sender: TObject);
  private
    procedure AddPerfStats(Heading: string; stats: TStrings);
    { private declarations }
    procedure ShowBoolValue(aValue: Long; WhenTrue, WhenFalse: string);
    procedure ShowStrings(aCaption: string; List: TStrings);
    function HexString(s: AnsiString): string;
  public
    { public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.lfm}

{ TForm1 }

procedure TForm1.FormShow(Sender: TObject);
begin
  Memo1.Lines.Clear;
  repeat
    try
      IBDatabase1.Connected := true;
    except
     on E:EIBClientError do
      begin
        Close;
        Exit
      end;
    On E:Exception do
     MessageDlg(E.Message,mtError,[mbOK],0);
    end;
  until IBDatabase1.Connected;
end;

procedure TForm1.IBDatabase1AfterConnect(Sender: TObject);
begin
  IBTransaction1.Active := true;
  TableNameLookup.Active := true;
  Memo1.Lines.Add('Authentication Method = '+ IBDatabase1.AuthenticationMethod);
  Memo1.Lines.Add('Remote Protocol = ' + IBDatabase1.RemoteProtocol);
  Memo1.Lines.Add('Attachment SQLDialect = ' + IntToStr(IBDatabase1.DBSQLDialect));
  with IBDatabaseInfo1 do
  begin
    Memo1.Lines.Add('DB SQLDialect = ' + IntToStr(DBSQLDialect));
    Memo1.Lines.Add('Allocation = ' + IntToStr(Allocation));
    Memo1.Lines.Add('Base Level = ' + IntToStr(BaseLevel));
    Memo1.Lines.Add('DB File Name = ' + DBFileName);
    Memo1.Lines.Add('DB Site Name = ' + DBSiteName);
    Memo1.Lines.Add('DB Implementation No = ' + IntToStr(DBImplementationNo));
    Memo1.Lines.Add('Database Created: ' + DateTimeToStr(DateDBCreated));
    Memo1.Lines.Add('DB Implementation Class = ' + IntToStr(DBImplementationClass));
    ShowBoolValue(NoReserve, 'No Space Reserved','Space is Reserved');
    Memo1.Lines.Add('ODS Minor Version = ' + IntToStr(ODSMinorVersion));
    Memo1.Lines.Add('ODS Major Version = ' + IntToStr(ODSMajorVersion));
    Memo1.Lines.Add('Page Size = ' + IntToStr(PageSize));
    Memo1.Lines.Add('Version = ' + Version);
    Memo1.Lines.Add('Current Memory = ' + IntToStr(CurrentMemory));
    ShowBoolValue(ForcedWrites,'Forced Writes Enabled','Forced Writes Disabled');
    Memo1.Lines.Add('Max Memory = ' + IntToStr(MaxMemory));
    Memo1.Lines.Add('Number of Buffers = ' + IntToStr(NumBuffers));
    Memo1.Lines.Add('Sweep Interval = ' + IntToStr(SweepInterval));
    ShowStrings('User Names',UserNames);
    Memo1.Lines.Add('Fetches = ' + IntToStr(Fetches));
    Memo1.Lines.Add('Marks = ' + IntToStr(Marks));
    Memo1.Lines.Add('Reads = ' + IntToStr(Reads));
    Memo1.Lines.Add('Writes = ' + IntToStr(Writes));
    if ODSMajorVersion >= 12 then
    begin
      Memo1.Lines.Add('Pages Free = ' + IntToStr(PagesFree));
      Memo1.Lines.Add('Pages Used = ' + IntToStr(PagesUsed));
    end;
    Memo1.Lines.Add('Transaction Count = ' + IntToStr(TransactionCount));
    AddPerfStats('Backout Count',BackoutCount);
    AddPerfStats('Delete Count',DeleteCount);
    AddPerfStats('Expunge Count',ExpungeCount);
    AddPerfStats('Insert Count',InsertCount);
    AddPerfStats('Purge Count',PurgeCount);
    AddPerfStats('Read Idx Count',ReadIdxCount);
    AddPerfStats('Read Seq Count',ReadSeqCount);
    AddPerfStats('Update Count',UpdateCount);
    Memo1.Lines.Add('');
    ShowBoolValue(ReadOnly,'Database is Read Only','Database is Read/Write');
    Memo1.Lines.Add('Hex Dump of Database Page 100:');
    Memo1.Lines.Add(HexString(GetDatabasePage(100)));
  end;
end;

procedure TForm1.ShowBoolValue(aValue: Long; WhenTrue, WhenFalse: string);
begin
  if aValue <> 0 then
    Memo1.Lines.Add(WhenTrue)
  else
    Memo1.Lines.Add(WhenFalse);
end;

procedure TForm1.ShowStrings(aCaption: string; List: TStrings);
var s: string;
    i: integer;
begin
  s := aCaption + ': ';
  for i := 0 to List.Count - 1 do
  begin
    if i > 0 then
      s := s + ', ';
    s := s + List[i];
  end;
  Memo1.Lines.Add(s);
end;

function TForm1.HexString(s: AnsiString): string;
var i: integer;
begin
  Result := '';
  for i := 1 to length(s) do
    Result += Format('%x ',[byte(s[i])]);
end;

procedure TForm1.AddPerfStats(Heading: string;
  stats: TStrings);
var i: integer;
begin
  with Memo1.Lines do
  begin
    if stats.count = 0 then exit;
    Add('');
    Add(Heading);
    for i := 0 to stats.Count - 1 do
    begin
      if TableNameLookup.Locate('RDB$RELATION_ID',stats.Names[i],[]) then
        Add('  ' + TableNameLookup.FieldByName('RDB$RELATION_NAME').AsString + ' = ' + stats.ValueFromIndex[i]);
    end;
  end;
end;


end.

Revision:	143
Committed:	Fri Feb 23 12:11:21 2018 UTC (6 years, 2 months ago) by tony
Content type:	text/x-pascal
File size:	5808 byte(s)
Log Message:	Fixes Merged
#	User	Rev	Content
1	tony	143	(*
2			* IBX For Lazarus (Firebird Express)
3			*
4			* The contents of this file are subject to the Initial Developer's
5			* Public License Version 1.0 (the "License"); you may not use this
6			* file except in compliance with the License. You may obtain a copy
7			* of the License here:
8			*
9			* http://www.firebirdsql.org/index.php?op=doc&id=idpl
10			*
11			* Software distributed under the License is distributed on an "AS
12			* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
13			* implied. See the License for the specific language governing rights
14			* and limitations under the License.
15			*
16			* The Initial Developer of the Original Code is Tony Whyman.
17			*
18			* The Original Code is (C) 2015 Tony Whyman, MWA Software
19			* (http://www.mwasoftware.co.uk).
20			*
21			* All Rights Reserved.
22			*
23			* Contributor(s): ______________________________________.
24			*
25			*)
26
27	tony	62	unit Unit1;
28
29			{$mode objfpc}{$H+}
30
31			interface
32
33			uses
34			Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, StdCtrls,
35	tony	82	IB, IBDatabase, IBDatabaseInfo, IBQuery, IBExternals;
36	tony	62
37			type
38
39			{ TForm1 }
40
41			TForm1 = class(TForm)
42			IBDatabase1: TIBDatabase;
43			IBDatabaseInfo1: TIBDatabaseInfo;
44	tony	82	IBTransaction1: TIBTransaction;
45	tony	62	Memo1: TMemo;
46	tony	82	TableNameLookup: TIBQuery;
47	tony	62	procedure FormShow(Sender: TObject);
48			procedure IBDatabase1AfterConnect(Sender: TObject);
49			private
50	tony	82	procedure AddPerfStats(Heading: string; stats: TStrings);
51	tony	62	{ private declarations }
52			procedure ShowBoolValue(aValue: Long; WhenTrue, WhenFalse: string);
53			procedure ShowStrings(aCaption: string; List: TStrings);
54	tony	143	function HexString(s: AnsiString): string;
55	tony	62	public
56			{ public declarations }
57			end;
58
59			var
60			Form1: TForm1;
61
62			implementation
63
64			{$R *.lfm}
65
66			{ TForm1 }
67
68			procedure TForm1.FormShow(Sender: TObject);
69			begin
70			Memo1.Lines.Clear;
71			repeat
72			try
73			IBDatabase1.Connected := true;
74			except
75			on E:EIBClientError do
76			begin
77			Close;
78			Exit
79			end;
80			On E:Exception do
81			MessageDlg(E.Message,mtError,[mbOK],0);
82			end;
83			until IBDatabase1.Connected;
84			end;
85
86			procedure TForm1.IBDatabase1AfterConnect(Sender: TObject);
87			begin
88	tony	82	IBTransaction1.Active := true;
89			TableNameLookup.Active := true;
90	tony	143	Memo1.Lines.Add('Authentication Method = '+ IBDatabase1.AuthenticationMethod);
91			Memo1.Lines.Add('Remote Protocol = ' + IBDatabase1.RemoteProtocol);
92			Memo1.Lines.Add('Attachment SQLDialect = ' + IntToStr(IBDatabase1.DBSQLDialect));
93	tony	62	with IBDatabaseInfo1 do
94			begin
95	tony	143	Memo1.Lines.Add('DB SQLDialect = ' + IntToStr(DBSQLDialect));
96	tony	62	Memo1.Lines.Add('Allocation = ' + IntToStr(Allocation));
97			Memo1.Lines.Add('Base Level = ' + IntToStr(BaseLevel));
98			Memo1.Lines.Add('DB File Name = ' + DBFileName);
99			Memo1.Lines.Add('DB Site Name = ' + DBSiteName);
100			Memo1.Lines.Add('DB Implementation No = ' + IntToStr(DBImplementationNo));
101	tony	143	Memo1.Lines.Add('Database Created: ' + DateTimeToStr(DateDBCreated));
102	tony	62	Memo1.Lines.Add('DB Implementation Class = ' + IntToStr(DBImplementationClass));
103			ShowBoolValue(NoReserve, 'No Space Reserved','Space is Reserved');
104			Memo1.Lines.Add('ODS Minor Version = ' + IntToStr(ODSMinorVersion));
105			Memo1.Lines.Add('ODS Major Version = ' + IntToStr(ODSMajorVersion));
106			Memo1.Lines.Add('Page Size = ' + IntToStr(PageSize));
107			Memo1.Lines.Add('Version = ' + Version);
108			Memo1.Lines.Add('Current Memory = ' + IntToStr(CurrentMemory));
109			ShowBoolValue(ForcedWrites,'Forced Writes Enabled','Forced Writes Disabled');
110			Memo1.Lines.Add('Max Memory = ' + IntToStr(MaxMemory));
111			Memo1.Lines.Add('Number of Buffers = ' + IntToStr(NumBuffers));
112			Memo1.Lines.Add('Sweep Interval = ' + IntToStr(SweepInterval));
113			ShowStrings('User Names',UserNames);
114			Memo1.Lines.Add('Fetches = ' + IntToStr(Fetches));
115			Memo1.Lines.Add('Marks = ' + IntToStr(Marks));
116			Memo1.Lines.Add('Reads = ' + IntToStr(Reads));
117			Memo1.Lines.Add('Writes = ' + IntToStr(Writes));
118	tony	143	if ODSMajorVersion >= 12 then
119			begin
120			Memo1.Lines.Add('Pages Free = ' + IntToStr(PagesFree));
121			Memo1.Lines.Add('Pages Used = ' + IntToStr(PagesUsed));
122			end;
123			Memo1.Lines.Add('Transaction Count = ' + IntToStr(TransactionCount));
124	tony	82	AddPerfStats('Backout Count',BackoutCount);
125			AddPerfStats('Delete Count',DeleteCount);
126			AddPerfStats('Expunge Count',ExpungeCount);
127			AddPerfStats('Insert Count',InsertCount);
128			AddPerfStats('Purge Count',PurgeCount);
129			AddPerfStats('Read Idx Count',ReadIdxCount);
130			AddPerfStats('Read Seq Count',ReadSeqCount);
131			AddPerfStats('Update Count',UpdateCount);
132			Memo1.Lines.Add('');
133	tony	62	ShowBoolValue(ReadOnly,'Database is Read Only','Database is Read/Write');
134	tony	143	Memo1.Lines.Add('Hex Dump of Database Page 100:');
135			Memo1.Lines.Add(HexString(GetDatabasePage(100)));
136	tony	62	end;
137			end;
138
139			procedure TForm1.ShowBoolValue(aValue: Long; WhenTrue, WhenFalse: string);
140			begin
141			if aValue <> 0 then
142			Memo1.Lines.Add(WhenTrue)
143			else
144			Memo1.Lines.Add(WhenFalse);
145			end;
146
147			procedure TForm1.ShowStrings(aCaption: string; List: TStrings);
148			var s: string;
149			i: integer;
150			begin
151			s := aCaption + ': ';
152			for i := 0 to List.Count - 1 do
153			begin
154			if i > 0 then
155			s := s + ', ';
156			s := s + List[i];
157			end;
158			Memo1.Lines.Add(s);
159			end;
160
161	tony	143	function TForm1.HexString(s: AnsiString): string;
162			var i: integer;
163			begin
164			Result := '';
165			for i := 1 to length(s) do
166			Result += Format('%x ',[byte(s[i])]);
167			end;
168
169	tony	82	procedure TForm1.AddPerfStats(Heading: string;
170			stats: TStrings);
171			var i: integer;
172			begin
173			with Memo1.Lines do
174			begin
175			if stats.count = 0 then exit;
176			Add('');
177			Add(Heading);
178			for i := 0 to stats.Count - 1 do
179			begin
180			if TableNameLookup.Locate('RDB$RELATION_ID',stats.Names[i],[]) then
181			Add(' ' + TableNameLookup.FieldByName('RDB$RELATION_NAME').AsString + ' = ' + stats.ValueFromIndex[i]);
182			end;
183			end;
184			end;
185
186
187	tony	62	end.
188