/// <summary>
/// Rozpoczynamy dzia³anie serwera
/// </summary>
public void Start()
{
_started = true;
_StartTime = DateTime.Now;
try
{
server = new UdpClient(_port);
TaskMessage message = new TaskMessage();
do
{
byte[] bytes = null;
try
{
bytes = server.Receive(ref ep);
}
catch (SocketException)
{
//Spróbuje zrestartowaæ serwer
if (_started)
{
server.Close();
server = null;
}
}
message = TaskMessage.Deserialize(bytes);
OnServerUpdate(new ServerUpdateEventArgs("Czekam na wiadomoϾ..."));
message = _scheduler.Schedule(message);
OnServerUpdate(new ServerUpdateEventArgs("Wysy³am wiadomoœæ..."));
bytes = TaskMessage.Serialize(message);
server.Send(bytes, bytes.Length, ep);
} while (_started);
}
catch (Exception ex)
{
if (_started)
{
MessageBox.Show("B³¹d serwera: " + ex.ToString());
}
//else to jest zatrzymanie u¿ytkownika
}
finally
{
if (server != null && _started)
{
server.Close();
}
}
_started = false;
DateTime endTime = DateTime.Now;
}
public void Start()
{
TimeSpan waitTime = new TimeSpan(0);
int brakTime = 5;
int stepTime = 1;
int stopTime = 5;
message = new TaskMessage();
started = true;
try
{
do
{
OnClientUpdate(new ClientUpdateEventArgs("Wysyłanie wiadomości..."));
bytes = TaskMessage.Serialize(message);
client.Send(bytes, bytes.Length, _host, _port);
//Odbierz wiadomość
received = false;
OnClientUpdate(new ClientUpdateEventArgs("Czekam na odpowiedź..."));
IAsyncResult iresult = client.BeginReceive(new AsyncCallback(ReceiveCallback), null);
int index = WaitHandle.WaitAny(new WaitHandle[] { iresult.AsyncWaitHandle }, timeout, false);
if (index == WaitHandle.WaitTimeout)
{
OnClientUpdate(new ClientUpdateEventArgs("Serwer nie odpowiada, czekam " + stopTime + "s..."));
if (stopTime < 60)
{
stopTime += stepTime;
}
waitTime = new TimeSpan(0, 0, stopTime);
Thread.Sleep(waitTime);
//break;
}
else
{
stopTime = 5;
//Trzeba chwilę poczekać...
OnClientUpdate(new ClientUpdateEventArgs("Kończę odbieranie wiadomości..."));
DateTime startTime = DateTime.Now;
waitTime = new TimeSpan(0, 0, 1); //1s
while (!received && DateTime.Now - startTime < waitTime)
{
continue;
}
if (!received)
{
OnClientUpdate(new ClientUpdateEventArgs("Nie udało się odebrać wiadomości :("));
break;
}
OnClientUpdate(new ClientUpdateEventArgs("Wiadomość odebrana"));
if (message.TaskId < 0)
{
if (brakTime < 60)
{
brakTime += stepTime;
}
OnClientUpdate(new ClientUpdateEventArgs("Chwilowo brak aktywnych zadań, czekam " + brakTime.ToString() + "s..."));
waitTime = new TimeSpan(0, 0, brakTime);
Thread.Sleep(waitTime);
}
else
if (message.Task != null)
{
brakTime = 5;
_task = message.Task;
_id = message.TaskId;
OnClientUpdate(new ClientUpdateEventArgs("Wykonuję zadanie..."));
ITaskResult result = _task.Execute();
message.Result = result;
OnClientUpdate(
new ClientUpdateEventArgs("Zakończyłem szukanie")
);
}
}
} while (started);
}
catch (SocketException)
{
OnClientUpdate(new ClientUpdateEventArgs("Serwer nie odpowiada"));
}
catch (Exception ex)
{
MessageBox.Show("Błąd aplikacji klienta: " + ex.ToString());
}
finally
{
started = false;
}
}
