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unit PingCheck;
interface
uses
Windows, Messages, SysUtils,
Classes, Graphics, Controls,
SvcMgr, Dialogs, IdIcmpClient,
ExtCtrls, iniFiles;
type
TServicePingCheck = class(TService)
procedure ServiceStart(Sender: TService; var Started: Boolean);
private
{ Private-Deklarationen }
public
function GetServiceController: TServiceController; override;
procedure TimerEvent(Sender: TObject);
{ Public-Deklarationen }
end;
var
ServicePingCheck: TServicePingCheck;
implementation
{$R *.DFM}
procedure ServiceController(CtrlCode: DWord); stdcall;
begin
ServicePingCheck.Controller(CtrlCode);
end;
function TServicePingCheck.GetServiceController: TServiceController;
begin
Result := ServiceController;
end;
Function GetInterVal: Integer ;
Var
Ini: TIniFile ;
StrFile: String;
Begin
StrFile:= ExtractFileName(ParamStr(0))+'Config.ini';
Ini:= TIniFile.Create(StrFile) ;
Try
Result:= Ini.ReadInteger('Timer', 'interval', 30)*1000;
Finally
FreeAndNil(Ini);
End ;
End ;
{*******************************************************************************
Ping a Sever
*******************************************************************************}
Function MyPing2(StrServer: String): Boolean ;
var
i : Integer;
icmp : TidIcmpClient ;
S: String;
begin
Result :=False;
icmp := TidIcmpClient.Create(nil) ;
try
try
ICMP.Host := StrServer;
ICMP.Ping;
S:= icmp.ReplyData ;
if s<>'' Then
Result:= True ;
except
end;
finally
FreeAndNil(icmp);
end ;
end ;
Function GetPingDestination: String;
Var
Ini: TIniFile ;
StrFile: String;
Begin
StrFile:= ExtractFileName(ParamStr(0))+'Config.ini';
Ini:= TIniFile.Create(StrFile) ;
Try
Result:= Ini.ReadString('Server', 'IPAddress', 'www.google.de');
Finally
FreeAndNil(Ini);
End ;
End ;
{*******************************************************************************
Log File
*******************************************************************************}
procedure Log(Action, comment: String);
var
LogText, Str : String ;
LogFile : TextFile ;
begin
LogText := DateTimeToStr(NOW)+#9+Action+':'+#9+comment ;
Str:= 'c:\programme\service\Log.txt';
AssignFile (LogFile, Str);
{$I-}
if FileExists(Str) Then
Append (LogFile)
Else
Rewrite(LogFile);
Try
WriteLn (LogFile, LogText);
Finally
CloseFile (LogFile);
End ;
{$I+}
end;
{*******************************************************************************
Timer Event
*******************************************************************************}
procedure TServicePingCheck.TimerEvent(Sender: TObject);
const
{$J+}
counter : Integer = 0;
{$J-}
Var
ip: String;
begin
inc(counter);
IP:= GetPingDestination;
Try
MyPing2(Ip);
Log('Ping Okay','Destination IP: '+IP+', Counter: '+inttostr(counter));
Except on E:Exception do
Log('ERROR Ping','Destination IP: '+IP+', Counter: '+inttostr(counter)+', '+e.Message);
End ;
end;
procedure TServicePingCheck.ServiceStart(Sender: TService; var Started: Boolean);
Var
Timer: TTimer;
begin
Timer:= TTimer.Create(Self);
Timer.Enabled:= False;
Timer.Interval:= GetInterVal ;
Timer.OnTimer:= TimerEvent ;
Timer.Enabled:= True ;
Started:= True ;
end;
end. |
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