private static IEnumerator<Int32> PipeServerAsyncEnumerator(AsyncEnumerator ae) {
// Each server object performs asynchronous operation on this pipe
using (var pipe = new NamedPipeServerStream(
"Echo", PipeDirection.InOut, -1, PipeTransmissionMode.Message,
PipeOptions.Asynchronous | PipeOptions.WriteThrough)) {
// Asynchronously accept a client connection
pipe.BeginWaitForConnection(ae.End(), null);
yield return 1;
// A client connected, let's accept another client
var aeNewClient = new AsyncEnumerator();
aeNewClient.BeginExecute(PipeServerAsyncEnumerator(aeNewClient),
aeNewClient.EndExecute);
// Accept the client connection
pipe.EndWaitForConnection(ae.DequeueAsyncResult());
// Asynchronously read a request from the client
Byte[] data = new Byte[1000];
pipe.BeginRead(data, 0, data.Length, ae.End(), null);
yield return 1;
// The client sent us a request, process it
Int32 bytesRead = pipe.EndRead(ae.DequeueAsyncResult());
// Just change to upper case
data = Encoding.UTF8.GetBytes(
Encoding.UTF8.GetString(data, 0, bytesRead).ToUpper().ToCharArray());
// Asynchronously send the response back to the client
pipe.BeginWrite(data, 0, data.Length, ae.End(), null);
yield return 1;
// The response was sent to the client, close our side of the connection
pipe.EndWrite(ae.DequeueAsyncResult());
} // Close happens in a finally block now!
}
static IEnumerator <int> ListenerFiber(AsyncEnumerator ae)
{
var listeningServer = new TcpListener(IPAddress.Loopback, 9998);
listeningServer.Start();
while (!ae.IsCanceled())
{
listeningServer.BeginAcceptTcpClient(ae.End(0, listeningServer.EndAcceptTcpClient), null);
yield return(1);
if (ae.IsCanceled())
{
yield break;
}
var clientSocket = listeningServer.EndAcceptTcpClient(ae.DequeueAsyncResult());
var clientAe = new AsyncEnumerator()
{
SyncContext = null
};
clientAe.BeginExecute(
ClientFiber(clientAe, clientSocket),
ar =>
{
try
{
clientAe.EndExecute(ar);
}
catch { }
}, null);
}
}
public void Post(Uri uri, Action <JsonRpcResponse, Exception> resultCallback)
{
if (uri == null)
{
throw new ArgumentNullException("uri");
}
if (resultCallback == null)
{
throw new ArgumentNullException("resultCallback");
}
try
{
var ae = new AsyncEnumerator();
ae.BeginExecute(this.GetPostEnumerator(uri, ae, resultCallback), ar =>
{
ae.EndExecute(ar);
});
}
catch (System.Security.SecurityException ex)
{
resultCallback(null, ex);
}
}
public void AddLookups(QuotePage[] pages)
{
// precondition checking
if (pages == null)
{
throw new ArgumentNullException();
}
else if (pages.Length == 0)
{
throw new ArgumentException();
}
foreach (QuotePage page in pages)
{
if (page == null)
{
throw new ArgumentException();
}
else if (!_cultureMapper.Contains(page.Culture))
{
throw new CultureNotSupportedException(page.Culture);
}
}
IsBusy = true;
AsyncEnumerator asyncEnumerator = GetAsyncEnumerator();
asyncEnumerator.BeginExecute(ProcessUpdateLookups(asyncEnumerator, pages), asyncEnumerator.EndExecute);
}
public void AsyncGetInitData()
{
Debug.Assert(_Token != null, "token can't be null");
IInitDataProvider provider = new InitDataProvider();
provider.Completed += GetInitDataCompletedCallback;
var ae = new AsyncEnumerator();
ae.BeginExecute(provider.AsyncGetInitData(_Token, ae), ae.EndExecute);
}
public void AsyncGetLoginData()
{
Token token = SessionManager.Default.GetToken(_LoginInfo.Parameter.Request.ClientInfo.Session);
IInitDataProvider initDataProvider = new InitDataProvider();
initDataProvider.Completed += LoadInitDataCompletedCallback;
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(initDataProvider.AsyncGetInitData(token, ae), ae.EndExecute);
}
private void ExecuteWithAsyncEnumerator()
{
SetStatus("Working..", StatusState.Busy);
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(ExecuteWithAsyncEnumerator(ae), ae.EndExecute, null);
}
/// <summary>
/// Asynchronously copies the contents of the source stream to the destination stream.
/// </summary>
/// <param name="source">The stream containing the data to be copied.</param>
/// <param name="destination">The stream that will receive the copied data.</param>
/// <param name="bufferSize">The size of the internal buffer that should be used to copy the data in chunks.</param>
/// <param name="reportProgress">A callback method that is called after each chunk is copied to the destination stream.</param>
/// <param name="callback">An optional asynchronous callback, to be called when copy completes.</param>
/// <param name="state">A user-provided object that distinguishes this particular asynchronous operation from other operations.</param>
/// <returns></returns>
public static IAsyncResult BeginCopyStream(/* this */ Stream source, Stream destination, Int32 bufferSize, Action <Int64> reportProgress, AsyncCallback callback, Object state)
{
var ae = new AsyncEnumerator <Int64>("CopyStream")
{
SyncContext = null
};
return(ae.BeginExecute(CopyStream(ae, source, destination, bufferSize, reportProgress), callback, state));
}
public void AsyncGetInitData()
{
Debug.Assert(_Token != null, "token can't be null");
IInitDataProvider provider = new InitDataProvider();
provider.Completed += GetInitDataCompletedCallback;
var ae = new AsyncEnumerator();
ae.BeginExecute(provider.AsyncGetInitData(_Token, ae), ae.EndExecute);
}
public void AsyncGetLoginData()
{
Token token = SessionManager.Default.GetToken(_LoginInfo.Parameter.Request.ClientInfo.Session);
IInitDataProvider initDataProvider = new InitDataProvider();
initDataProvider.Completed += LoadInitDataCompletedCallback;
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(initDataProvider.AsyncGetInitData(token, ae), ae.EndExecute);
}
static void Main(string[] args)
{
var ae = new AsyncEnumerator()
{
SyncContext = null
};
var mainOp = ae.BeginExecute(ListenerFiber(ae), null, null);
// block until main server is finished
ae.EndExecute(mainOp);
}
public static void Main()
{
String[] urls = new String[] {
"http://Wintellect.com/",
"http://1.1.1.1/", // Demonstrates error recovery
"http://www.Devscovery.com/"
};
// Demonstrate process
AsyncEnumerator ae = new AsyncEnumerator();
ae.EndExecute(ae.BeginExecute(ProcessAllAndEachOps(ae, urls), null));
}
private static IEnumerator <Int32> PipeServerAsyncEnumerator(AsyncEnumerator ae)
{
// Each server object performs asynchronous operations on this pipe
using (var pipe = new NamedPipeServerStream(
"Echo", PipeDirection.InOut, -1, PipeTransmissionMode.Message,
PipeOptions.Asynchronous | PipeOptions.WriteThrough)) {
// Asynchronously accept a client connection
pipe.BeginWaitForConnection(ae.End(), null);
yield return(1);
// A client connected, let's accept another client
var aeNewClient = new AsyncEnumerator();
aeNewClient.BeginExecute(PipeServerAsyncEnumerator(aeNewClient), aeNewClient.EndExecute);
// Accept the client connection
pipe.EndWaitForConnection(ae.DequeueAsyncResult());
// Asynchronously read a request from the client
Byte[] data = new Byte[1000];
pipe.BeginRead(data, 0, data.Length, ae.End(), null);
yield return(1);
// The client sent us a request, process it.
Int32 bytesRead = pipe.EndRead(ae.DequeueAsyncResult());
// Get the timestamp of this client's request
DateTime now = DateTime.Now;
// We want to save the timestamp of the most-recent client request. Since multiple
// clients are running concurrently, this has to be done in a thread-safe way
s_gate.BeginRegion(SyncGateMode.Exclusive, ae.End()); // Request exclusive access
yield return(1); // The iterator resumes when exclusive access is granted
if (s_lastClientRequestTimestamp < now)
{
s_lastClientRequestTimestamp = now;
}
s_gate.EndRegion(ae.DequeueAsyncResult()); // Relinquish exclusive access
// My sample server just changes all the characters to uppercase
// But, you can replace this code with any compute-bound operation
data = Encoding.UTF8.GetBytes(
Encoding.UTF8.GetString(data, 0, bytesRead).ToUpper().ToCharArray());
// Asynchronously send the response back to the client
pipe.BeginWrite(data, 0, data.Length, ae.End(), null);
yield return(1);
// The response was sent to the client, close our side of the connection
pipe.EndWrite(ae.DequeueAsyncResult());
} // Close the pipe
}
public void GetImagesAsync(string searchString, Action <IList <Image> > callback, int count = 5)
{
if (String.IsNullOrEmpty(searchString))
{
throw new ArgumentNullException("searchString");
}
_searchString = searchString;
_totalImages = count;
_callback = callback;
AsyncEnumerator asyncEnumerator = new AsyncEnumerator();
asyncEnumerator.BeginExecute(GetAllImages(asyncEnumerator), EnumeratorExecutionComplete);
}
public void GetImagesAsync(string searchString,Action<IList<Image>> callback, int count = 5)
{
if (String.IsNullOrEmpty( searchString))
{
throw new ArgumentNullException("searchString");
}
_searchString = searchString;
_totalImages = count;
_callback = callback;
AsyncEnumerator asyncEnumerator = new AsyncEnumerator();
asyncEnumerator.BeginExecute(GetAllImages(asyncEnumerator), EnumeratorExecutionComplete);
}
private IEnumerator <Int32> GetAllImages(AsyncEnumerator ae)
{
Int32 CurrentPage = 0;
Int32 _totalImagesTemp = _totalImages;
// while(_totalImagesTemp>0)
{
AsyncEnumerator asyncE = new AsyncEnumerator();
asyncE.BeginExecute(GetImagesFromGoogle(asyncE,
GetGoogleSearchUrl(CurrentPage++),
_totalImagesTemp > _numberOfImagesInAPage ? _numberOfImagesInAPage : _totalImagesTemp), ae.EndVoid(0, DiscardWebRequest));
_totalImagesTemp = _totalImagesTemp - _numberOfImagesInAPage;
yield return(1);
}
}
private IEnumerator<Int32> GetAllImages(AsyncEnumerator ae)
{
Int32 CurrentPage=0;
Int32 _totalImagesTemp=_totalImages ;
_GoogledImages = new List<Image>();
while(_totalImagesTemp>0)
{
AsyncEnumerator asyncE = new AsyncEnumerator();
asyncE.BeginExecute(GetImagesFromGoogle(asyncE,
GetGoogleSearchUrl(CurrentPage++),
_totalImagesTemp > _numberOfImagesInAPage ? _numberOfImagesInAPage : _totalImagesTemp), ae.EndVoid(0, DiscardWebRequest));
_totalImagesTemp = _totalImagesTemp - _numberOfImagesInAPage;
yield return 1;
}
}
private static void ImplementedViaAsyncEnumerator()
{
// Start 1 server per CPU
for (Int32 n = 0; n < Environment.ProcessorCount; n++)
{
var ae = new AsyncEnumerator();
ae.BeginExecute(PipeServerAsyncEnumerator(ae), ae.EndExecute);
}
// Now make a 100 client requests against the server
for (Int32 n = 0; n < 100; n++)
{
var ae = new AsyncEnumerator();
ae.BeginExecute(PipeClientAsyncEnumerator(ae, "localhost", "Request #" + n), ae.EndExecute);
}
}
private void BeginAcceptFileCallback(IAsyncResult result)
{
FileWatcherFile file;
try { file = _listener.EndAcceptFile(result); }
catch (ObjectDisposedException) { return; }
catch (Exception e) { _logger.Warn("Error on EndAcceptFile", e); StartAcceptingFile(); return; }
_logger.DebugFormat("Accepting connection from {0}", file.EndPoint);
var enumerator = new AsyncEnumerator("Receiver from " + file.EndPoint);
enumerator.BeginExecute(ProcessRequest(file, enumerator), ar =>
{
try { enumerator.EndExecute(ar); }
catch (Exception e) { _logger.Warn("Failed to recieve message", e); }
});
StartAcceptingFile();
}
private void FlickrButton_Click(object sender, RoutedEventArgs e) {
// Initiate a Flickr request
String input = Input.Text.Replace(' ', '+');
#if !AsyncEnumerator
WebRequest request = HttpWebRequest.Create(
new Uri(String.Format("http://api.flickr.com/services/rest/?method=flickr.photos.search&api_key={0}&tags={1}&per_page=10",
FlickrKey.Key, input)));
request.BeginGetResponse(WebRequestComplete, request);
#else
#if DEBUG
AsyncEnumerator.EnableDebugSupport();
#endif
AsyncEnumerator ae = new AsyncEnumerator("Query Flickr Photos");
ae.BeginExecute(GetPhotos(ae, input), ae.EndExecute);
#endif
}
public static void Main()
{
AsyncEnumerator.EnableDebugSupport();
// Add this to watch window: AsyncEnumerator.GetInProgressList();
// Also, you can hover over a variable that is of my AsyncEnumerator type
String[] urls = new String[] {
"http://Wintellect.com/",
"http://1.1.1.1/", // Demonstrates error recovery
"http://www.Devscovery.com/"
};
// Demonstrate process
AsyncEnumerator ae = new AsyncEnumerator();
ae.SuspendCallback += sr=>{ Console.WriteLine(123); };
ae.ResumeCallback += sr=> { Console.WriteLine(321); };
ae.EndExecute(ae.BeginExecute(ProcessAllAndEachOps(ae, urls), null));
}
internal void UpdateQuotesAsync(QuotePage page)
{
AsyncEnumerator asyncEnumerator = new AsyncEnumerator();
lock (_asyncEnumerators)
{
_asyncEnumerators.Add(asyncEnumerator);
}
asyncEnumerator.BeginExecute(ProcessCollectQuotes(asyncEnumerator, page.Topic, page.Culture, page.Uri,
(quotes, topicTranslations) =>
{
page.Items = quotes;
page.TopicTranslations = topicTranslations;
OnQuotesCollectingCompleted(new QuotesCollectingCompletedEventArgs(page, true));
}),
asyncEnumerator.EndExecute);
}
internal void CollectQuotesAsync(string topic, CultureInfo culture, Uri uri)
{
AsyncEnumerator asyncEnumerator = new AsyncEnumerator();
lock (_asyncEnumerators)
{
_asyncEnumerators.Add(asyncEnumerator);
}
asyncEnumerator.BeginExecute(ProcessCollectQuotes(asyncEnumerator, topic, culture, uri,
(quotes, topicTranslations) =>
{
QuotePage page = new QuotePage(topic, uri, culture, quotes, topicTranslations);
OnQuotesCollectingCompleted(new QuotesCollectingCompletedEventArgs(page, false));
_playlist.Add(page);
}),
asyncEnumerator.EndExecute);
}
public static void Transfer(
string urlIn,
string urlOut,
Action<double> onProgress,
Action<int> onComplete,
Action<Exception> onError)
{
var ae = new AsyncEnumerator();
ae.BeginExecute(GetAsyncEnumerator(ae, urlIn, urlOut, onProgress, onComplete), ar =>
{
try
{
ae.EndExecute(ar);
}
catch (Exception ex)
{
onError(ex);
}
});
}
public static void Transfer(
string urlIn,
string urlOut,
Action <double> onProgress,
Action <int> onComplete,
Action <Exception> onError)
{
var ae = new AsyncEnumerator();
ae.BeginExecute(GetAsyncEnumerator(ae, urlIn, urlOut, onProgress, onComplete), ar =>
{
try
{
ae.EndExecute(ar);
}
catch (Exception ex)
{
onError(ex);
}
});
}
public void Send()
{
var enumerator = new AsyncEnumerator(
string.Format("Sending {0} messages to {1}", Messages.Length,
Destination)
);
logger.DebugFormat("Starting to send {0} messages to {1}", Messages.Length, Destination);
enumerator.BeginExecute(SendInternal(enumerator), result =>
{
try
{
enumerator.EndExecute(result);
}
catch (Exception exception)
{
logger.Warn("Failed to send message", exception);
Failure(exception);
}
});
}
public void AddLookup(string topic, CultureInfo culture)
{
// precondition checking
if (topic == null || culture == null)
{
throw new ArgumentNullException();
}
else if (topic.Length == 0)
{
throw new ArgumentException();
}
else if (!_cultureMapper.Contains(culture))
{
throw new CultureNotSupportedException(culture);
}
IsBusy = true;
AsyncEnumerator asyncEnumerator = GetAsyncEnumerator();
asyncEnumerator.BeginExecute(ProcessLookup(asyncEnumerator, topic, culture), asyncEnumerator.EndExecute);
}
private void BeginAcceptTcpClientCallback(IAsyncResult result)
{
TcpClient client;
try
{
client = listener.EndAcceptTcpClient(result);
}
catch (ObjectDisposedException)
{
return;
}
logger.DebugFormat("Accepting connection from {0}", client.Client.RemoteEndPoint);
var enumerator = new AsyncEnumerator(
"Receiver from " + client.Client.RemoteEndPoint
);
enumerator.BeginExecute(ProcessRequest(client, enumerator), ar =>
{
try
{
enumerator.EndExecute(ar);
}
catch (Exception exception)
{
logger.Warn("Failed to recieve message", exception);
}
});
try
{
listener.BeginAcceptTcpClient(BeginAcceptTcpClientCallback, null);
}
catch (ObjectDisposedException)
{
}
}
private void BeginAcceptTcpClientCallback(IAsyncResult result)
{
TcpClient client;
try
{
client = listener.EndAcceptTcpClient(result);
}
catch (ObjectDisposedException)
{
return;
}
logger.DebugFormat("Accepting connection from {0}", client.Client.RemoteEndPoint);
var enumerator = new AsyncEnumerator(
"Receiver from " + client.Client.RemoteEndPoint
);
enumerator.BeginExecute(ProcessRequest(client, enumerator), ar =>
{
try
{
enumerator.EndExecute(ar);
}
catch (Exception exception)
{
logger.Warn("Failed to recieve message", exception);
}
});
try
{
listener.BeginAcceptTcpClient(BeginAcceptTcpClientCallback, null);
}
catch (ObjectDisposedException)
{
}
}
private void GetImages_Click(object sender, RoutedEventArgs e)
{
BlankImages();
m_ae = new AsyncEnumerator();
m_ae.BeginExecute(DownloadImages(m_ae), m_ae.EndExecute);
}
private IEnumerator <int> ProcessRequest(TcpClient client, AsyncEnumerator ae)
{
try
{
using (client)
using (var stream = client.GetStream())
{
var sender = client.Client.RemoteEndPoint;
var lenOfDataToReadBuffer = new byte[sizeof(int)];
var lenEnumerator = new AsyncEnumerator(ae.ToString());
try
{
lenEnumerator.BeginExecute(
StreamUtil.ReadBytes(lenOfDataToReadBuffer, stream, lenEnumerator, "length data", false), ae.End());
}
catch (Exception exception)
{
logger.Warn("Unable to read length data from " + sender, exception);
yield break;
}
yield return(1);
try
{
lenEnumerator.EndExecute(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Unable to read length data from " + sender, exception);
yield break;
}
var lengthOfDataToRead = BitConverter.ToInt32(lenOfDataToReadBuffer, 0);
if (lengthOfDataToRead < 0)
{
logger.WarnFormat("Got invalid length {0} from sender {1}", lengthOfDataToRead, sender);
yield break;
}
logger.DebugFormat("Reading {0} bytes from {1}", lengthOfDataToRead, sender);
var buffer = new byte[lengthOfDataToRead];
var readBufferEnumerator = new AsyncEnumerator(ae.ToString());
try
{
readBufferEnumerator.BeginExecute(
StreamUtil.ReadBytes(buffer, stream, readBufferEnumerator, "message data", false), ae.End());
}
catch (Exception exception)
{
logger.Warn("Unable to read message data from " + sender, exception);
yield break;
}
yield return(1);
try
{
readBufferEnumerator.EndExecute(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Unable to read message data from " + sender, exception);
yield break;
}
Message[] messages = null;
try
{
messages = SerializationExtensions.ToMessages(buffer);
logger.DebugFormat("Deserialized {0} messages from {1}", messages.Length, sender);
}
catch (Exception exception)
{
logger.Warn("Failed to deserialize messages from " + sender, exception);
}
if (messages == null)
{
try
{
stream.BeginWrite(ProtocolConstants.SerializationFailureBuffer, 0,
ProtocolConstants.SerializationFailureBuffer.Length, ae.End(), null);
}
catch (Exception exception)
{
logger.Warn("Unable to send serialization format error to " + sender, exception);
yield break;
}
yield return(1);
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Unable to send serialization format error to " + sender, exception);
}
yield break;
}
IMessageAcceptance acceptance = null;
byte[] errorBytes = null;
try
{
acceptance = acceptMessages(messages);
logger.DebugFormat("All messages from {0} were accepted", sender);
}
catch (QueueDoesNotExistsException)
{
logger.WarnFormat("Failed to accept messages from {0} because queue does not exists", sender);
errorBytes = ProtocolConstants.QueueDoesNoExiststBuffer;
}
catch (Exception exception)
{
errorBytes = ProtocolConstants.ProcessingFailureBuffer;
logger.Warn("Failed to accept messages from " + sender, exception);
}
if (errorBytes != null)
{
try
{
stream.BeginWrite(errorBytes, 0,
errorBytes.Length, ae.End(), null);
}
catch (Exception exception)
{
logger.Warn("Unable to send processing failure from " + sender, exception);
yield break;
}
yield return(1);
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Unable to send processing failure from " + sender, exception);
}
yield break;
}
logger.DebugFormat("Sending reciept notice to {0}", sender);
try
{
stream.BeginWrite(ProtocolConstants.RecievedBuffer, 0, ProtocolConstants.RecievedBuffer.Length,
ae.End(), null);
}
catch (Exception exception)
{
logger.Warn("Could not send reciept notice to " + sender, exception);
acceptance.Abort();
yield break;
}
yield return(1);
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Could not send reciept notice to " + sender, exception);
acceptance.Abort();
yield break;
}
logger.DebugFormat("Reading acknowledgement about accepting messages to {0}", sender);
var acknowledgementBuffer = new byte[ProtocolConstants.AcknowledgedBuffer.Length];
var readAcknoweldgement = new AsyncEnumerator(ae.ToString());
try
{
readAcknoweldgement.BeginExecute(
StreamUtil.ReadBytes(acknowledgementBuffer, stream, readAcknoweldgement, "acknowledgement", false),
ae.End());
}
catch (Exception exception)
{
logger.Warn("Error reading acknowledgement from " + sender, exception);
acceptance.Abort();
yield break;
}
yield return(1);
try
{
readAcknoweldgement.EndExecute(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Error reading acknowledgement from " + sender, exception);
acceptance.Abort();
yield break;
}
var senderResponse = Encoding.Unicode.GetString(acknowledgementBuffer);
if (senderResponse != ProtocolConstants.Acknowledged)
{
logger.WarnFormat("Sender did not respond with proper acknowledgement, the reply was {0}",
senderResponse);
acceptance.Abort();
}
bool commitSuccessful;
try
{
acceptance.Commit();
commitSuccessful = true;
}
catch (Exception exception)
{
logger.Warn("Unable to commit messages from " + sender, exception);
commitSuccessful = false;
}
if (commitSuccessful == false)
{
bool writeSuccessful;
try
{
stream.BeginWrite(ProtocolConstants.RevertBuffer, 0, ProtocolConstants.RevertBuffer.Length,
ae.End(),
null);
writeSuccessful = true;
}
catch (Exception e)
{
logger.Warn("Unable to send revert message to " + sender, e);
writeSuccessful = false;
}
if (writeSuccessful)
{
yield return(1);
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Unable to send revert message to " + sender, exception);
}
}
}
}
}
finally
{
var copy = CompletedRecievingMessages;
if (copy != null)
{
copy();
}
}
}
private void ExecuteJavaTraderRequest()
{
var ae = new AsyncEnumerator();
ae.BeginExecute(InitDataService.GetInitData(_Request, ae), ae.EndExecute);
}
private void ExecuteJavaTraderRequest()
{
var ae = new AsyncEnumerator();
ae.BeginExecute(InitDataService.GetInitData(_Request, ae), ae.EndExecute);
}
private IEnumerator <int> SendInternal(AsyncEnumerator ae)
{
try
{
using (var client = new TcpClient())
{
try
{
client.BeginConnect(Destination.Host, Destination.Port,
ae.End(),
null);
}
catch (Exception exception)
{
logger.WarnFormat("Failed to connect to {0} because {1}", Destination, exception);
Failure(exception);
yield break;
}
yield return(1);
try
{
client.EndConnect(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.WarnFormat("Failed to connect to {0} because {1}", Destination, exception);
Failure(exception);
yield break;
}
logger.DebugFormat("Successfully connected to {0}", Destination);
using (var stream = client.GetStream())
{
var buffer = Messages.Serialize();
var bufferLenInBytes = BitConverter.GetBytes(buffer.Length);
logger.DebugFormat("Writing length of {0} bytes to {1}", buffer.Length, Destination);
try
{
stream.BeginWrite(bufferLenInBytes, 0, bufferLenInBytes.Length, ae.End(), null);
}
catch (Exception exception)
{
logger.WarnFormat("Could not write to {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
yield return(1);
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.WarnFormat("Could not write to {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
logger.DebugFormat("Writing {0} bytes to {1}", buffer.Length, Destination);
try
{
stream.BeginWrite(buffer, 0, buffer.Length, ae.End(), null);
}
catch (Exception exception)
{
logger.WarnFormat("Could not write to {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
yield return(1);
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.WarnFormat("Could not write to {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
logger.DebugFormat("Successfully wrote to {0}", Destination);
var recieveBuffer = new byte[ProtocolConstants.RecievedBuffer.Length];
var readConfirmationEnumerator = new AsyncEnumerator();
try
{
readConfirmationEnumerator.BeginExecute(
StreamUtil.ReadBytes(recieveBuffer, stream, readConfirmationEnumerator, "recieve confirmation", false), ae.End());
}
catch (Exception exception)
{
logger.WarnFormat("Could not read confirmation from {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
yield return(1);
try
{
readConfirmationEnumerator.EndExecute(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.WarnFormat("Could not read confirmation from {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
var recieveRespone = Encoding.Unicode.GetString(recieveBuffer);
if (recieveRespone == ProtocolConstants.QueueDoesNotExists)
{
logger.WarnFormat(
"Response from reciever {0} is that queue does not exists",
Destination);
Failure(new QueueDoesNotExistsException());
yield break;
}
else if (recieveRespone != ProtocolConstants.Recieved)
{
logger.WarnFormat(
"Response from reciever {0} is not the expected one, unexpected response was: {1}",
Destination, recieveRespone);
Failure(null);
yield break;
}
try
{
stream.BeginWrite(ProtocolConstants.AcknowledgedBuffer, 0,
ProtocolConstants.AcknowledgedBuffer.Length, ae.End(), null);
}
catch (Exception exception)
{
logger.WarnFormat("Failed to write acknowledgement to reciever {0} because {1}",
Destination, exception);
Failure(exception);
yield break;
}
yield return(1);
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.WarnFormat("Failed to write acknowledgement to reciever {0} because {1}",
Destination, exception);
Failure(exception);
yield break;
}
var bookmarks = Success();
buffer = new byte[ProtocolConstants.RevertBuffer.Length];
var readRevertMessage = new AsyncEnumerator(ae.ToString());
bool startingToReadFailed = false;
try
{
readRevertMessage.BeginExecute(
StreamUtil.ReadBytes(buffer, stream, readRevertMessage, "revert", true), ae.End());
}
catch (Exception)
{
//more or less expected
startingToReadFailed = true;
}
if (startingToReadFailed)
{
yield break;
}
yield return(1);
try
{
readRevertMessage.EndExecute(ae.DequeueAsyncResult());
var revert = Encoding.Unicode.GetString(buffer);
if (revert == ProtocolConstants.Revert)
{
logger.Warn("Got back revert message from receiver, reverting send");
Revert(bookmarks);
}
}
catch (Exception)
{
// expected, there is nothing to do here, the
// reciever didn't report anything for us
}
}
}
}
finally
{
var completed = SendCompleted;
if (completed != null)
{
completed();
}
}
}
private void button1_Click(object sender, RoutedEventArgs e)
{
var ae = new AsyncEnumerator("String download");
ae.BeginExecute(DownloadString(ae, "http://Wintellect.com/"), ae.EndExecute);
}
private IEnumerator <Int32> UploadFileInBlocks(AsyncEnumerator ae, String pathname, CloudBlockBlob blob, Action <Int32> blockUploaded)
{
Int64 fileLength;
using (var fs = new FileStream(pathname, FileMode.Open, FileAccess.Read, FileShare.Read))
using (var mmf = MemoryMappedFile.CreateFromFile(fs, null, fileLength = fs.Length, MemoryMappedFileAccess.Read, null, HandleInheritability.None, false)) {
Byte[] uploadedBlocks = new Byte[(fileLength - 1) / m_blockSize + 1];
// Find out which blocks have been uploaded already?
blob.BeginDownloadBlockList(BlockListingFilter.Uncommitted, AccessCondition.GenerateEmptyCondition(), null, null, ae.End(), null);
yield return(1);
try {
foreach (ListBlockItem lbi in blob.EndDownloadBlockList(ae.DequeueAsyncResult()))
{
Int32 blockId = lbi.Name.FromBase64ToInt32();
uploadedBlocks[blockId] = 1;
blockUploaded(blockId);
}
}
catch (StorageException e) {
if ((HttpStatusCode)e.RequestInformation.HttpStatusCode != HttpStatusCode.NotFound)
{
throw;
}
}
// Start uploading the remaining blocks:
Int32 blocksUploading = 0;
foreach (var blockNumber in GetBlockNumbersFromArray(uploadedBlocks))
{
// Start uploading up to 'm_concurrency' blocks
blocksUploading++;
var aeBlock = new AsyncEnumerator("Block #" + blockNumber);
aeBlock.BeginExecute(UploadBlock(aeBlock, mmf, blob, blockNumber,
(blockNumber == uploadedBlocks.Length - 1) ? fileLength % m_blockSize : m_blockSize), ae.End(), blockNumber);
if (blocksUploading < m_concurrency)
{
continue;
}
// As each block completes uploading, start uploading a new block (if any are left)
yield return(1);
blocksUploading--;
IAsyncResult result = ae.DequeueAsyncResult();
AsyncEnumerator.FromAsyncResult(result).EndExecute(result);
blockUploaded((Int32)result.AsyncState);
}
// Wait until all blocks have finished uploading and then commit them all
for (; blocksUploading > 0; blocksUploading--)
{
yield return(1);
IAsyncResult result = ae.DequeueAsyncResult();
AsyncEnumerator.FromAsyncResult(result).EndExecute(result);
blockUploaded((Int32)result.AsyncState);
}
// Commit all the blocks in order:
blob.BeginPutBlockList(Enumerable.Range(0, uploadedBlocks.Length).Select(b => b.ToBase64()), ae.End(), null);
yield return(1);
blob.EndPutBlockList(ae.DequeueAsyncResult());
}
}
public void Login(LoginParameter parameter)
{
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(_LoginProvider.AsyncLogin(parameter, ae), ae.EndExecute);
}
public static void Start(String server, String message)
{
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(Process(ae, server, message), ae.EndExecute, null);
}
private XElement GetInitDataAction(SerializedObject request, Token token)
{
XElement result=null;
if (token != null && token.AppType == iExchange.Common.AppType.Mobile)
{
System.Data.DataSet initData = Mobile.Manager.GetInitData(token);
List<string> argList = XmlRequestCommandHelper.GetArguments(request.Content);
Guid selectedAccountId = (argList != null && argList.Count > 0 ? new Guid(argList[0]) : Guid.Empty);
InitDataService.Init(request.Session, initData);
result = Mobile.Manager.Initialize(token, initData, selectedAccountId);
//test:
if (System.Configuration.ConfigurationManager.AppSettings["MobileDebug"]=="true")
{
////test place
//string s = "<PlacingInstruction AccountId=\"cbcdb06f-141a-415f-bdda-a676bd5759b7\" InstrumentId=\"864ac5d7-b872-45a6-887e-7189463beb12\" PlacingType=\"LimitStop\" EndTime=\"2013-05-02 12:19:07.007\" ExpireType=\"GoodTillSession\" ExpireDate=\"2013-05-02 12:19:07.007\" PriceIsQuote=\"false\" PriceTimestamp=\"2013-05-02 12:19:07.007\"><PlacingOrders><PlacingOrder Id=\"e2a72e0d-ddf6-4d83-8a04-9883a0eee84e\" Lot=\"1\" IsOpen=\"true\" IsBuy=\"false\" SetPrice=\"2.0988\" TradeOption=\"Better\" /></PlacingOrders></PlacingInstruction>";
//XmlDocument doc = new XmlDocument();
//doc.LoadXml(s);
//ICollection<Mobile.Server.Transaction> transactionsTest = Mobile.Manager.ConvertPlacingRequest(token, doc.FirstChild);
//foreach (Mobile.Server.Transaction transaction in transactionsTest)
//{
// string tranCode;
// TransactionError error = Application.Default.TradingConsoleServer.Place(token, Application.Default.StateServer, transaction.ToXmlNode(), out tranCode);
//}
//// test quote
//this._Service.Quote(request.Session, "282fa038-1330-43a6-aa87-9d7d01c1a594", 30, 2);
// test order query
//XElement node = Mobile.Manager.QueryOrder(token, new Guid("1DFC557A-3FB5-4A9F-BD08-E165FA6DFCE6"), 10, 4, 3);
//XElement x = new XElement("Result");
//x.Add(node);
//XElement e = XElement.Parse("<Transaction ID=\"ec123d66-77af-4403-b739-0bbfa618a37b\" AccountID=\"cbcdb06f-141a-415f-bdda-a676bd5759b7\" InstrumentID=\"864ac5d7-b872-45a6-887e-7189463beb12\" Type=\"2\" SubType=\"1\" OrderType=\"1\" BeginTime=\"2013-05-02 11:52:22\" EndTime=\"2013-05-03 04:00:00\" ExpireType=\"3\" SubmitTime=\"2013-05-10 09:41:07\" ContractSize=\"10001.0000\" SubmitorID=\"79eb2fa2-4ced-4d0e-a283-85adc0136d05\" AssigningOrderID=\"4F23DE3E-3968-440E-829A-3D78685EAA8C\"><Order ID=\"aca88b2e-7640-4a26-9284-6a8993d420e3\" TradeOption=\"1\" IsOpen=\"true\" IsBuy=\"false\" SetPrice=\"2.102\" SetPrice2=\"\" DQMaxMove=\"0\" Lot=\"1.0000\" OriginalLot=\"1.0000\" /></Transaction>");
//Mobile.Server.Transaction transaction = Mobile.Manager.ConvertModifyRequest(token, new Guid("4F23DE3E-3968-440E-829A-3D78685EAA8C"), "2.3", new Guid("11111111-AEF4-4717-8101-522E284DDA6D"), "2.0", null, null, null, null, true);
//XElement element = new XElement("Result");
//ICollection<XElement> errorCodes = this.GetPlaceResultForMobile(transaction, token);
//XmlNode n = InstrumentManager.Default.UpdateInstrumentSetting(request.Session, new string[] { "27b059c2-1913-44ac-93ec-dc39e9863f1a" });
//string instrumentIds = "6a3fbe21-2e49-46ea-ae93-2be31caa3c6c,babf7daa-af0f-4396-85f2-67e2c97952b7,382be55a-3b33-403e-b9e0-b9eccabd5019,ab98797c-0b0c-427f-8d1b-0de006d153a1,63a02916-28b2-4da1-a65e-59bb1dd4f951,eb82dca7-2625-48df-ac5c-464d160bccbc,282fa038-1330-43a6-aa87-9d7d01c1a594,864ac5d7-b872-45a6-887e-7189463beb12,1bac5d80-7f4a-4b94-98fa-0b76e13fcb1b";
//Dictionary<Guid, Guid> quotePolicyIds = Mobile.Manager.UpdateInstrumentSetting(token, instrumentIds.Split(new char[]{','}));
//var state = Trader.Server.Session.SessionManager.Default.GetTradingConsoleState(request.Session);
//InstrumentManager.Default.UpdateInstrumentSetting(request.Session, quotePolicyIds);
//XElement e= Mobile.Manager.GetChanges(request.Session, true);
Dictionary<Guid, Guid> quotePolicyIds = Mobile.Manager.UpdateInstrumentSetting(token, new string[] { });
}
}
else
{
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(InitDataService.GetInitData(request, null, ae),ae.EndExecute);
}
return result;
}
// AsyncEnumerator class.
private static void FetchStockQuotesAsyncEnumerator(WebService svc)
{
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(FetchStockQuotesAsyncEnumerator(ae, svc), ae.EndExecute);
}
// The BeginHandler method launches an async op returns immediately
// The ASP.NET thread returns back to the thread pool
// The thread pool waits on the IAsyncResult and then wakes and calls the EndHandler method
private IAsyncResult BeginHandler(Object sender, EventArgs e, AsyncCallback cb, Object extraData)
{
m_lblPic1.Text = m_lblPic2.Text = null;
m_ae = new AsyncEnumerator();
return m_ae.BeginExecute(GetImages(m_ae), cb, extraData);
}
// AsyncEnumerator class.
private static void FetchStockQuotesAsyncEnumerator(WebService svc)
{
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(FetchStockQuotesAsyncEnumerator(ae, svc), ae.EndExecute);
}
public void Login(LoginParameter parameter)
{
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(_LoginProvider.AsyncLogin(parameter, ae), ae.EndExecute);
}
public void Send()
{
var enumerator = new AsyncEnumerator(
string.Format("Sending {0} messages to {1}", Messages.Length,
Destination)
);
logger.DebugFormat("Starting to send {0} messages to {1}", Messages.Length, Destination);
enumerator.BeginExecute(SendInternal(enumerator), result =>
{
try
{
enumerator.EndExecute(result);
}
catch (Exception exception)
{
logger.Warn("Failed to send message", exception);
Failure(exception);
}
});
}
private IEnumerator<int> ProcessRequest(TcpClient client, AsyncEnumerator ae)
{
try
{
using (client)
using (var stream = client.GetStream())
{
var sender = client.Client.RemoteEndPoint;
var lenOfDataToReadBuffer = new byte[sizeof(int)];
var lenEnumerator = new AsyncEnumerator(ae.ToString());
try
{
lenEnumerator.BeginExecute(
StreamUtil.ReadBytes(lenOfDataToReadBuffer, stream, lenEnumerator, "length data",false), ae.End());
}
catch (Exception exception)
{
logger.Warn("Unable to read length data from " + sender, exception);
yield break;
}
yield return 1;
try
{
lenEnumerator.EndExecute(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Unable to read length data from " + sender, exception);
yield break;
}
var lengthOfDataToRead = BitConverter.ToInt32(lenOfDataToReadBuffer, 0);
if (lengthOfDataToRead < 0)
{
logger.WarnFormat("Got invalid length {0} from sender {1}", lengthOfDataToRead, sender);
yield break;
}
logger.DebugFormat("Reading {0} bytes from {1}", lengthOfDataToRead, sender);
var buffer = new byte[lengthOfDataToRead];
var readBufferEnumerator = new AsyncEnumerator(ae.ToString());
try
{
readBufferEnumerator.BeginExecute(
StreamUtil.ReadBytes(buffer, stream, readBufferEnumerator, "message data", false), ae.End());
}
catch (Exception exception)
{
logger.Warn("Unable to read message data from " + sender, exception);
yield break;
}
yield return 1;
try
{
readBufferEnumerator.EndExecute(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Unable to read message data from " + sender, exception);
yield break;
}
Message[] messages = null;
try
{
messages = SerializationExtensions.ToMessages(buffer);
logger.DebugFormat("Deserialized {0} messages from {1}", messages.Length, sender);
}
catch (Exception exception)
{
logger.Warn("Failed to deserialize messages from " + sender, exception);
}
if (messages == null)
{
try
{
stream.BeginWrite(ProtocolConstants.SerializationFailureBuffer, 0,
ProtocolConstants.SerializationFailureBuffer.Length, ae.End(), null);
}
catch (Exception exception)
{
logger.Warn("Unable to send serialization format error to " + sender, exception);
yield break;
}
yield return 1;
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Unable to send serialization format error to " + sender, exception);
}
yield break;
}
IMessageAcceptance acceptance = null;
byte[] errorBytes = null;
try
{
acceptance = acceptMessages(messages);
logger.DebugFormat("All messages from {0} were accepted", sender);
}
catch (QueueDoesNotExistsException)
{
logger.WarnFormat("Failed to accept messages from {0} because queue does not exists", sender);
errorBytes = ProtocolConstants.QueueDoesNoExiststBuffer;
}
catch (Exception exception)
{
errorBytes = ProtocolConstants.ProcessingFailureBuffer;
logger.Warn("Failed to accept messages from " + sender, exception);
}
if (errorBytes != null)
{
try
{
stream.BeginWrite(errorBytes, 0,
errorBytes.Length, ae.End(), null);
}
catch (Exception exception)
{
logger.Warn("Unable to send processing failure from " + sender, exception);
yield break;
}
yield return 1;
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Unable to send processing failure from " + sender, exception);
}
yield break;
}
logger.DebugFormat("Sending reciept notice to {0}", sender);
try
{
stream.BeginWrite(ProtocolConstants.RecievedBuffer, 0, ProtocolConstants.RecievedBuffer.Length,
ae.End(), null);
}
catch (Exception exception)
{
logger.Warn("Could not send reciept notice to " + sender, exception);
acceptance.Abort();
yield break;
}
yield return 1;
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Could not send reciept notice to " + sender, exception);
acceptance.Abort();
yield break;
}
logger.DebugFormat("Reading acknowledgement about accepting messages to {0}", sender);
var acknowledgementBuffer = new byte[ProtocolConstants.AcknowledgedBuffer.Length];
var readAcknoweldgement = new AsyncEnumerator(ae.ToString());
try
{
readAcknoweldgement.BeginExecute(
StreamUtil.ReadBytes(acknowledgementBuffer, stream, readAcknoweldgement, "acknowledgement", false),
ae.End());
}
catch (Exception exception)
{
logger.Warn("Error reading acknowledgement from " + sender, exception);
acceptance.Abort();
yield break;
}
yield return 1;
try
{
readAcknoweldgement.EndExecute(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Error reading acknowledgement from " + sender, exception);
acceptance.Abort();
yield break;
}
var senderResponse = Encoding.Unicode.GetString(acknowledgementBuffer);
if (senderResponse != ProtocolConstants.Acknowledged)
{
logger.WarnFormat("Sender did not respond with proper acknowledgement, the reply was {0}",
senderResponse);
acceptance.Abort();
}
bool commitSuccessful;
try
{
acceptance.Commit();
commitSuccessful = true;
}
catch (Exception exception)
{
logger.Warn("Unable to commit messages from " + sender, exception);
commitSuccessful = false;
}
if (commitSuccessful == false)
{
bool writeSuccessful;
try
{
stream.BeginWrite(ProtocolConstants.RevertBuffer, 0, ProtocolConstants.RevertBuffer.Length,
ae.End(),
null);
writeSuccessful = true;
}
catch (Exception e)
{
logger.Warn("Unable to send revert message to " + sender, e);
writeSuccessful = false;
}
if (writeSuccessful)
{
yield return 1;
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.Warn("Unable to send revert message to " + sender, exception);
}
}
}
}
}
finally
{
var copy = CompletedRecievingMessages;
if (copy != null)
copy();
}
}
private IEnumerator<int> SendInternal(AsyncEnumerator ae)
{
try
{
using (var client = new TcpClient())
{
try
{
client.BeginConnect(Destination.Host, Destination.Port,
ae.End(),
null);
}
catch (Exception exception)
{
logger.WarnFormat("Failed to connect to {0} because {1}", Destination, exception);
Failure(exception);
yield break;
}
yield return 1;
try
{
client.EndConnect(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.WarnFormat("Failed to connect to {0} because {1}", Destination, exception);
Failure(exception);
yield break;
}
logger.DebugFormat("Successfully connected to {0}", Destination);
using (var stream = client.GetStream())
{
var buffer = Messages.Serialize();
var bufferLenInBytes = BitConverter.GetBytes(buffer.Length);
logger.DebugFormat("Writing length of {0} bytes to {1}", buffer.Length, Destination);
try
{
stream.BeginWrite(bufferLenInBytes, 0, bufferLenInBytes.Length, ae.End(), null);
}
catch (Exception exception)
{
logger.WarnFormat("Could not write to {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
yield return 1;
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.WarnFormat("Could not write to {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
logger.DebugFormat("Writing {0} bytes to {1}", buffer.Length, Destination);
try
{
stream.BeginWrite(buffer, 0, buffer.Length, ae.End(), null);
}
catch (Exception exception)
{
logger.WarnFormat("Could not write to {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
yield return 1;
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.WarnFormat("Could not write to {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
logger.DebugFormat("Successfully wrote to {0}", Destination);
var recieveBuffer = new byte[ProtocolConstants.RecievedBuffer.Length];
var readConfirmationEnumerator = new AsyncEnumerator();
try
{
readConfirmationEnumerator.BeginExecute(
StreamUtil.ReadBytes(recieveBuffer, stream, readConfirmationEnumerator, "recieve confirmation", false), ae.End());
}
catch (Exception exception)
{
logger.WarnFormat("Could not read confirmation from {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
yield return 1;
try
{
readConfirmationEnumerator.EndExecute(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.WarnFormat("Could not read confirmation from {0} because {1}", Destination,
exception);
Failure(exception);
yield break;
}
var recieveRespone = Encoding.Unicode.GetString(recieveBuffer);
if (recieveRespone == ProtocolConstants.QueueDoesNotExists)
{
logger.WarnFormat(
"Response from reciever {0} is that queue does not exists",
Destination);
Failure(new QueueDoesNotExistsException());
yield break;
}
else if(recieveRespone!=ProtocolConstants.Recieved)
{
logger.WarnFormat(
"Response from reciever {0} is not the expected one, unexpected response was: {1}",
Destination, recieveRespone);
Failure(null);
yield break;
}
try
{
stream.BeginWrite(ProtocolConstants.AcknowledgedBuffer, 0,
ProtocolConstants.AcknowledgedBuffer.Length, ae.End(), null);
}
catch (Exception exception)
{
logger.WarnFormat("Failed to write acknowledgement to reciever {0} because {1}",
Destination, exception);
Failure(exception);
yield break;
}
yield return 1;
try
{
stream.EndWrite(ae.DequeueAsyncResult());
}
catch (Exception exception)
{
logger.WarnFormat("Failed to write acknowledgement to reciever {0} because {1}",
Destination, exception);
Failure(exception);
yield break;
}
var bookmarks = Success();
buffer = new byte[ProtocolConstants.RevertBuffer.Length];
var readRevertMessage = new AsyncEnumerator(ae.ToString());
bool startingToReadFailed = false;
try
{
readRevertMessage.BeginExecute(
StreamUtil.ReadBytes(buffer, stream, readRevertMessage, "revert", true), ae.End());
}
catch (Exception)
{
//more or less expected
startingToReadFailed = true;
}
if (startingToReadFailed)
yield break;
yield return 1;
try
{
readRevertMessage.EndExecute(ae.DequeueAsyncResult());
var revert = Encoding.Unicode.GetString(buffer);
if (revert == ProtocolConstants.Revert)
{
logger.Warn("Got back revert message from receiver, reverting send");
Revert(bookmarks);
}
}
catch (Exception)
{
// expected, there is nothing to do here, the
// reciever didn't report anything for us
}
}
}
}
finally
{
var completed = SendCompleted;
if (completed != null)
completed();
}
}
static IEnumerator<Int32> ServerConnectRemote(AsyncEnumerator ae, ServerState server, IPEndPoint ipe, TcpClient local)
{
// establish a client proxy -> real server connection
var remote = new TcpClient(ipe.AddressFamily);
var settings = server.settings;
remote.NoDelay = true;
remote.LingerState.Enabled = false;
remote.BeginConnect(IPAddress.Parse(settings.addressforward), settings.portforward, ae.End(), ae);
yield return 1;
try
{
remote.EndConnect(ae.DequeueAsyncResult());
}
catch (SocketException)
{
Console.WriteLine("A client failed to connect, has the real server started?");
local.Close();
remote.Close();
remote = null;
}
if(remote != null)
{
var bufParam = new ClientBufferParam();
{
server.bufferPoolMutex.BeginRegion(SyncGateMode.Exclusive, ae.End());
yield return 1;
var res = ae.DequeueAsyncResult();
server.AllocBuffer(ae, bufParam);
server.bufferPoolMutex.EndRegion(res);
}
{
var newClientState = new ClientState(local, remote);
var remoteAe = new AsyncEnumerator();
var localAe = new AsyncEnumerator();
var bw1 = new BufferWrapper(bufParam.sendbuffer);
var bw2 = new BufferWrapper(bufParam.recvbuffer);
localAe.BeginExecute(HandleClient(localAe, server, newClientState, local, remote, bw1, server.filterSend), ae.End(), localAe);
remoteAe.BeginExecute(HandleClient(remoteAe, server, newClientState, remote, local, bw2, server.filterRecv), ae.End(), remoteAe);
Console.WriteLine("Client Connected {0}", local.Client.RemoteEndPoint);
yield return 2;
for (int x = 0; x < 2; x++)
{
IAsyncResult ar = ae.DequeueAsyncResult();
((AsyncEnumerator)ar.AsyncState).EndExecute(ar);
}
bufParam.sendbuffer = bw1.buffer;
bufParam.recvbuffer = bw2.buffer;
}
{
server.bufferPoolMutex.BeginRegion(SyncGateMode.Exclusive, ae.End());
yield return 1;
var res = ae.DequeueAsyncResult();
server.FreeBuffer(ae, bufParam);
server.bufferPoolMutex.EndRegion(res);
}
}
}
static IEnumerator <int> ClientFiber(AsyncEnumerator ae, TcpClient clientSocket)
{
Console.WriteLine("ClientFibers ++{0}", Interlocked.Increment(ref clients));
try
{
// original code to do handshaking and connect to remote host
var ns1 = clientSocket.GetStream();
var r1 = new BinaryReader(ns1);
var w1 = new BinaryWriter(ns1);
if (!(r1.ReadByte() == 5 && r1.ReadByte() == 1))
{
yield break;
}
var c = r1.ReadByte();
for (int i = 0; i < c; ++i)
{
r1.ReadByte();
}
w1.Write((byte)5);
w1.Write((byte)0);
if (!(r1.ReadByte() == 5 && r1.ReadByte() == 1))
{
yield break;
}
if (r1.ReadByte() != 0)
{
yield break;
}
byte[] ipAddr = null;
string hostname = null;
var type = r1.ReadByte();
switch (type)
{
case 1:
ipAddr = r1.ReadBytes(4);
break;
case 3:
hostname = Encoding.ASCII.GetString(r1.ReadBytes(r1.ReadByte()));
break;
case 4:
throw new Exception();
}
var nhport = r1.ReadInt16();
var port = IPAddress.NetworkToHostOrder(nhport);
var socketout = new TcpClient();
if (hostname != null)
{
socketout.Connect(hostname, port);
}
else
{
socketout.Connect(new IPAddress(ipAddr), port);
}
w1.Write((byte)5);
w1.Write((byte)0);
w1.Write((byte)0);
w1.Write(type);
switch (type)
{
case 1:
w1.Write(ipAddr);
break;
case 3:
w1.Write((byte)hostname.Length);
w1.Write(Encoding.ASCII.GetBytes(hostname), 0, hostname.Length);
break;
}
w1.Write(nhport);
using (var ns2 = socketout.GetStream())
{
var forwardAe = new AsyncEnumerator()
{
SyncContext = null
};
forwardAe.BeginExecute(
ForwardingFiber(forwardAe, ns1, ns2), ae.EndVoid(0, forwardAe.EndExecute), null);
yield return(1);
if (ae.IsCanceled())
{
yield break;
}
forwardAe.EndExecute(ae.DequeueAsyncResult());
}
}
finally
{
Console.WriteLine("ClientFibers --{0}", Interlocked.Decrement(ref clients));
}
}
public IAsyncResult BeginUpload(String pathname, CloudBlockBlob blob, Action <Int32> blockUploaded, AsyncCallback callback = null, Object state = null)
{
var ae = new AsyncEnumerator();
return(ae.BeginExecute(UploadFileInBlocks(ae, pathname, blob, blockUploaded), callback, state));
}
private void m_btnStart_Click(object sender, EventArgs e)
{
String[] uris = new String[] {
"http://Wintellect.com/",
"http://1.1.1.1/", // Demonstrates error recovery
"http://www.Devscovery.com/"
};
// Construct an AsyncEnumerator
m_ae = new AsyncEnumerator();
// NOTE: The AsyncEnumerator automatically saves the
// Windows Forms SynchronizationContext with it ensuring
// that the iterator always runs on the GUI thread;
// this allows the iterator to access the UI Controls
// Start iterator asynchonously so that GUI thread doesn't block
m_ae.BeginExecute(GetWebData(m_ae, uris), m_ae.EndExecute);
}
static void Main(string[] args)
{
Console.WriteLine("Wokf AntiHaxxing Proxy Server by Hunter and Thanatos. Version 1");
var filter = new Filter();
var serverState = new ServerState(filter.Recv, filter.Send);
// a new AsyncEnumerator is constructed for the sake of a new thread of execution
var ae = new AsyncEnumerator();
var r = ae.BeginExecute(Server(ae, serverState), ae.EndExecute);
r.AsyncWaitHandle.WaitOne();
}
private XElement LoginAction(SerializedObject request, Token token)
{
List<string> argList = XmlRequestCommandHelper.GetArguments(request.Content);
XElement result = null;
AsyncEnumerator ae = new AsyncEnumerator();
int appType = argList[3].ToInt();
IAsyncResult asyncResult = ae.BeginExecute(LoginManager.Default.Login(request, argList[0], argList[1], argList[2], appType, ae), ae.EndExecute);
if ((int)AppType.Mobile == appType)
{
ae.EndExecute(asyncResult);
token = Trader.Server.Session.SessionManager.Default.GetToken(request.Session);
result = iExchange3Promotion.Mobile.Manager.Login(token);
}
//test:
if (System.Configuration.ConfigurationManager.AppSettings["MobileDebug"] == "true")
{
Dictionary<Guid, Guid> quotePolicyIds = Mobile.Manager.UpdateInstrumentSetting(token, new string[] { });
}
return result;
}
static IEnumerator<Int32> Server(AsyncEnumerator ae, ServerState server)
{
var sleeper = new CountdownTimer();
var settings = server.settings;
var ipe = new IPEndPoint(IPAddress.Parse(settings.addressforward), settings.portforward);
var serverSock = new TcpListener(IPAddress.Parse(settings.addresslisten), settings.portlisten);
serverSock.Start(20);
Console.WriteLine("Server started");
Console.WriteLine("Listening on {0}:{1}", settings.addresslisten, settings.portlisten);
Console.WriteLine("Forwarding to {0}:{1}", settings.addressforward, settings.portforward);
while (true)
{
serverSock.BeginAcceptTcpClient(ae.End(), null);
yield return 1;
TcpClient local = null;
try
{
local = serverSock.EndAcceptTcpClient(ae.DequeueAsyncResult());
local.NoDelay = true;
local.LingerState.Enabled = false;
}
catch (SocketException)
{
Console.WriteLine("A client failed to connect");
}
if(local != null)
{
// handle client
var localAe = new AsyncEnumerator();
localAe.BeginExecute(ServerConnectRemote(localAe, server, ipe, local), localAe.EndExecute, localAe);
}
}
}
// The BeginHandler method launches an op returns immediately
// The ASP.NET thread returns back to the thread pool
// The thread pool waits on the IAsyncResult and then wakes and calls the EndHandler method
private IAsyncResult BeginHandler(Object sender, EventArgs e, AsyncCallback cb, Object extraData)
{
m_lblPic1.Text = m_lblPic2.Text = null;
m_ae = new AsyncEnumerator();
return(m_ae.BeginExecute(GetImages(m_ae), cb, extraData));
}
private void ExecuteWithAsyncEnumerator()
{
SetStatus("Working..", StatusState.Busy);
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(ExecuteWithAsyncEnumerator(ae), ae.EndExecute, null);
}
public void ReadLineAsync()
{
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(Process(ae), ae.EndExecute, null);
}
public static void Start(TcpListener server)
{
AsyncEnumerator ae = new AsyncEnumerator();
ae.BeginExecute(Process(ae, server), ae.EndExecute, null);
}