/// <summary>
/// Attempts to terminate the application.
/// </summary>
/// <returns>Null if the operation succeeds, or a <see cref="SerializedException"/>
/// encapsulating the error that occured if the operation fails.</returns>
public void Terminate(ref SerializedException sx)
{
try
{
//System.Windows.Forms.Application.Exit();
Client.Instance().MustTerminate = true;
}
catch (Exception e)
{
sx = new SerializedException(e.GetType().ToString(), e.Message, e.StackTrace);
}
}
/// <summary>
/// Handles the SessionEnding events, allowing the client to terminate if the system
/// is shutting down but not be affected if the user is simply logging off.
/// </summary>
/// <param name="sender">The object related to the event.</param>
/// <param name="e">The arguments related to the event.</param>
private static void SystemEvents_SessionEnding(object sender, SessionEndingEventArgs e)
{
try
{
if (e.Reason == SessionEndReasons.SystemShutdown)
{
Client client = Client.Instance();
client.mustTerminate = true;
e.Cancel = false;
}
}
catch
{}
}
static void Main(string [] args)
{
//Attach the default Exception handlers
AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(UnhandledExceptionHandler);
Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(ApplicationThreadExceptionHandler);
try
{
if (CheckForRunningInstances(false))
{
//there is another instance of the application running so this one must exit
return;
}
Client client = Client.Instance();
//set the time scheduler to control the automatic start/stop of the crawling
if (client.globals.Settings.EnableScheduler)
{
client.startScheduler = new AlarmTimer();
client.startScheduler.AlarmTime = DateTime.Parse(client.globals.Settings.StartTime.ToShortTimeString());
client.startScheduler.OnAlarmBell += new EventHandler(startScheduler_OnAlarmBell);
client.startScheduler.Enabled = true;
client.startScheduler.Start();
client.stopScheduler = new AlarmTimer();
client.stopScheduler.AlarmTime = DateTime.Parse(client.globals.Settings.StopTime.ToShortTimeString());
client.stopScheduler.OnAlarmBell += new EventHandler(stopScheduler_OnAlarmBell);
client.stopScheduler.Enabled = true;
client.stopScheduler.Start();
if ((DateTime.Now > client.startScheduler.AlarmTime) && (DateTime.Now < client.stopScheduler.AlarmTime))
{
client.startScheduler.AlarmTime.AddDays(1);
client.stopScheduler.AlarmTime.AddDays(1);
client.crawler = Crawler.Instance();
if (client.globals.Client_Info.UserID != 0)
{
client.crawler.Start();
}
}
}
else
{
client.crawler = Crawler.Instance();
if (client.globals.Client_Info.UserID != 0)
{
client.crawler.Start();
}
}
//Attach the System Shutdown detection observer
//SystemEvents.SessionEnding += new SessionEndingEventHandler(SystemEvents_SessionEnding);
//Allow the control of the client through Remoting
RemotingConfiguration.Configure(client.globals.AppPath + "CrawlWave.Client.exe.config", true);
while (!client.mustTerminate)
{
//Wait until it's time to exit
Thread.Sleep(Backoff.DefaultBackoff);
if (Environment.HasShutdownStarted)
{
break;
}
}
}
catch (Exception e)
{
MessageBox.Show("CrawlWave Client failed to start:\n" + e.Message, "CrawlWave Client", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}