protected override IEnumerator <AsyncStep> GetAsyncSteps()
{
while (this.shouldContinuePump)
{
// Reset status for the loop
this.brokeredMessage = null;
// Receives the message
yield return(this.CallAsync(
(thisPtr, t, c, s) => thisPtr.owner.receiver.BeginReceive(c, s),
(thisPtr, r) => thisPtr.brokeredMessage = thisPtr.owner.receiver.EndReceive(r),
ExceptionPolicy.Continue));
if (this.LastAsyncStepException != null)
{
Log.MessagePumpReceiveException(this.owner.id, this.LastAsyncStepException);
if (ShouldBackoff(this.LastAsyncStepException))
{
Log.MessagePumpBackoff(BackoffAmount, this.LastAsyncStepException);
yield return(this.CallAsyncSleep(BackoffAmount));
}
}
// Retry next receive if no message was received.
if (this.brokeredMessage == null)
{
continue;
}
// Handles the message
InternalMessage internalMessage = null;
try
{
ulong sequenceNumber = (ulong)brokeredMessage.SequenceNumber;
Message[] messages = MessageConverter.ToMessages(brokeredMessage);
internalMessage = new InternalMessage(this.owner.id, sequenceNumber, messages);
}
catch (Exception e)
{
Log.MessagePumpDeserializationException(e);
}
finally
{
brokeredMessage.Dispose();
}
if (internalMessage != null)
{
if (!this.owner.semaphore.TryEnter())
{
yield return(this.CallAsync(
(thisPtr, t, c, s) => thisPtr.owner.semaphore.BeginEnter(c, s),
(thisPtr, r) => thisPtr.owner.semaphore.EndEnter(r),
ExceptionPolicy.Transfer));
}
this.owner.inputQueue.EnqueueAndDispatch(internalMessage, this.owner.exitSemaphore);
}
}
}
protected override IEnumerator <AsyncStep> GetAsyncSteps()
{
if (this.owner.initializeTask.IsFaulted)
{
throw this.owner.initializeTask.Exception.GetBaseException();
}
if (!this.owner.initializeTask.IsCompleted)
{
yield return(this.CallAsync(
(thisPtr, t, c, s) => new TaskAsyncResult(this.owner.initializeTask, c, s),
(thisPtr, r) => TaskAsyncResult.End(r),
ExceptionPolicy.Transfer));
}
foreach (Message message in this.messages)
{
int partitionId = GetPartitionId(message);
List <Message> messageList;
if (!this.partitionedMessages.TryGetValue(partitionId, out messageList))
{
messageList = new List <Message>();
this.partitionedMessages.Add(partitionId, messageList);
}
messageList.Add(message);
}
yield return(this.CallParallelAsync(
partitionedMessages,
(thisPtr, i, t, c, s) => thisPtr.owner.senders[i.Key].BeginSend(MessageConverter.ToBrokeredMessages(i.Value), c, s),
(thisPtr, i, r) => thisPtr.owner.senders[i.Key].EndSend(r),
ExceptionPolicy.Transfer));
}
