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Update AmqpRequestProcessor.cs #255

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Update AmqpRequestProcessor.cs #255

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44 changes: 27 additions & 17 deletions CFX/Transport/AmqpRequestProcessor.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -197,6 +197,7 @@ public void PublishToSource(string sourceAddress, IEnumerable<CFXEnvelope> messa
foreach (CFXEnvelope env in messages)
{
p.MessageQueue.Enqueue(env);
p.SignalMessageAvailable();
}
}

Expand Down Expand Up @@ -267,6 +268,12 @@ protected void Fire_OnMessageReceivedFromListener(string TargetAddress, CFXEnvel

class InternalSourceProcessor : IMessageSource
{
/// <summary>
/// A semaphore for waiting for new messages.
/// This can fix the issue that GetMessageAsync leads to high CPU consumption.
/// </summary>
private SemaphoreSlim messageAvailable = new SemaphoreSlim(0);

public InternalSourceProcessor(AmqpRequestProcessor parentProcessor, string sourceAddress)
{
this.parentProcessor = parentProcessor;
Expand Down Expand Up @@ -296,30 +303,31 @@ public void DisposeMessage(ReceiveContext receiveContext, DispositionContext dis
public async Task<ReceiveContext> GetMessageAsync(ListenerLink link)
{
ReceiveContext ctx = null;

await Task.Run(() =>
await messageAvailable.WaitAsync();
try
{
try
if (MessageQueue.Count > 0)
{
if (MessageQueue.Count > 0)
Message m;
CFXEnvelope[] envs = MessageQueue.Dequeue();
if (envs != null && envs.Length > 0)
{
Message m;
CFXEnvelope[] envs = MessageQueue.Dequeue();
if (envs != null && envs.Length > 0)
{
m = AmqpUtilities.MessageFromEnvelope(envs[0], AmqpCFXEndpoint.Codec.Value, parentProcessor.Endpoint.SubjectFormat);
ctx = new ReceiveContext(link, m);
}
m = AmqpUtilities.MessageFromEnvelope(envs[0], AmqpCFXEndpoint.Codec.Value, parentProcessor.Endpoint.SubjectFormat);
ctx = new ReceiveContext(link, m);
}
}
catch (Exception ex)
{
AppLog.Error(ex);
}
});

}
catch (Exception ex)
{
AppLog.Error(ex);
}
return ctx;
}

public void SignalMessageAvailable()
{
messageAvailable.Release();
}
}

class InternalRequestProcessor : IRequestProcessor
Expand Down Expand Up @@ -489,6 +497,8 @@ public override void OnMessage(MessageContext messageContext)

public override void OnFlow(FlowContext flowContext)
{


}

public override void OnDisposition(DispositionContext dispositionContext)
Expand Down