static void Connection_Disconnected(object sender, DisconnectedEventArgs e)
{
e.Retry = e.RetryCount < 6;
}
/// <summary>
/// Fires the Disconnected event.
/// </summary>
/// <param name="e">Event arguments.</param>
protected virtual void OnDisconnected(DisconnectedEventArgs e)
{
Disconnected?.Invoke(this, e);
}
/// <summary>
/// Will be called from polling timer on every interval.
/// </summary>
/// <param name="state">State (not used)</param>
internal void SendHeartbeat(object state)
{
if (_sendingHeartbeat)
{
// if polling timer interval is less than
// channel timeout, skip sending a heartbeat
return;
}
try
{
_sendingHeartbeat = true;
try
{
PrepareCallContext(false);
RemoteDispatcher.ReceiveClientHeartbeat(_sessionID);
}
finally
{
_sendingHeartbeat = false;
}
}
catch (Exception ex)
{
PollingEnabled = false;
bool problemSolved = false;
DisconnectedEventArgs e = new DisconnectedEventArgs()
{
Exception = ex,
RetryCount = 0,
Retry = false
};
OnDisconnected(e);
while (e.Retry)
{
e.Retry = false;
Thread.Sleep(Convert.ToInt32(_pollingInterval.TotalMilliseconds));
try
{
problemSolved = InternalReconnect();
}
catch (Exception retryEx)
{
e.Exception = retryEx;
e.RetryCount++;
OnDisconnected(e);
}
}
if (problemSolved)
{
PollingEnabled = true;
OnReconnected(EventArgs.Empty);
}
else
{
// connection wasn't restored, make sure
// that the polling timer is stopped
PollingEnabled = false;
}
}
}
/// <summary>
/// Will be called from polling timer on every interval.
/// </summary>
/// <param name="state">State (not used)</param>
internal void SendHeartbeat(object state)
{
if (_sendingHeartbeat)
{
// if polling timer interval is less than
// channel timeout, skip sending a heartbeat
return;
}
try
{
_sendingHeartbeat = true;
try
{
_transportAdapter.SendRequest(new RequestMessage()
{
RequestType = RequestType.SystemOperation,
MethodName = "ReceiveClientHeartbeat",
Address = _serverUrl,
ParameterValues = new object[] { _sessionID },
CallContext = PrepareCallContext(false)
});
//RemoteDispatcher.ReceiveClientHeartbeat(_sessionID);
}
finally
{
_sendingHeartbeat = false;
}
}
catch (Exception ex)
{
PollingEnabled = false;
bool problemSolved = false;
DisconnectedEventArgs e = new DisconnectedEventArgs()
{
Exception = ex,
RetryCount = 0,
Retry = false
};
OnDisconnected(e);
while (e.Retry)
{
e.Retry = false;
Thread.Sleep(Convert.ToInt32(_pollingInterval.TotalMilliseconds));
try
{
problemSolved = InternalReconnect();
}
catch (Exception retryEx)
{
e.Exception = retryEx;
e.RetryCount++;
OnDisconnected(e);
}
}
if (problemSolved)
{
PollingEnabled = true;
OnReconnected(EventArgs.Empty);
}
else
{
// connection wasn't restored, make sure
// that the polling timer is stopped
PollingEnabled = false;
}
}
}
