public void TearDown()
{
_reader.Dispose();
_reader = null;
_pipe.Close();
_pipe = null;
}
public void TearDown()
{
_reader.Dispose();
_reader = null;
_stream.Dispose();
_stream = null;
}
private void ConnectToConfigurationStream()
{
if (_linesStreamReader != null)
{
_linesStreamReader.Dispose();
_linesStreamReader = null;
}
// Start loop at 1 to make sure we always try a server different from the last one upon (re)connecting.
var connecting = false;
for (var i = 1; !connecting && i <= _configurationHosts.Length; i++)
{
connecting = true;
_currentConfigurationHost = (_currentConfigurationHost + i) % _configurationHosts.Length;
var url = string.Format(
"http://{0}:{1}/pools/default/bucketsStreaming/{2}",
_configurationHosts[_currentConfigurationHost].Address,
_configurationHosts[_currentConfigurationHost].Port,
_bucket);
var request = WebRequest.Create(url);
try
{
request.BeginGetResponse(ConfigurationStreamRequestEndGetResponse, request);
}
catch (Exception e)
{
// Try the next host
connecting = false;
if (OnError != null)
{
OnError(e);
}
}
}
// In case no host can be reached, try again in 30s
if (!connecting)
{
RetryConnectingToConfigurationStream(30);
}
}
private void KillCurrentConnection()
{
if (_linesStreamReader != null)
{
_linesStreamReader.Dispose();
_linesStreamReader = null;
}
if (_webResponse != null)
{
_webResponse.Dispose();
_webResponse = null;
}
}
private void ConfigurationStreamRequestEndGetResponse(IAsyncResult ar)
{
if (_linesStreamReader != null)
{
OnError(new MemcacheException("Sanity check: The previous AsyncLinesStreamReader was not disposed"));
return;
}
if (_webResponse != null)
{
OnError(new MemcacheException("Sanity check: The previous WebResponse was not disposed"));
return;
}
WebResponse response = null;
AsyncLinesStreamReader linesStreamReader = null;
try
{
var request = (WebRequest)ar.AsyncState;
response = request.EndGetResponse(ar);
// Allocate new string reader and start reading
linesStreamReader = new AsyncLinesStreamReader(response.GetResponseStream());
linesStreamReader.OnError += HandleLinesStreamError;
linesStreamReader.OnChunk += HandleConfigurationUpdate;
lock (this)
if (!_isDisposed)
{
_webResponse = response;
_linesStreamReader = linesStreamReader;
}
else
{
response.Dispose();
linesStreamReader.Dispose();
return;
}
_linesStreamReader.StartReading();
}
catch (Exception e)
{
if (OnError != null)
{
OnError(e);
}
if (response != null)
{
response.Dispose();
}
_webResponse = null;
if (linesStreamReader != null)
{
linesStreamReader.Dispose();
}
_linesStreamReader = null;
// Handle HTTP query errors by trying another host
RetryConnectingToConfigurationStream(delaySeconds: 1.0);
}
}
