public ProtocolHeader ExtractProtocolHeader(ByteBuffer buffer)
{
if (buffer.Length < AmqpConstants.ProtocolHeaderSize)
{
return null;
}
ProtocolHeader header = new ProtocolHeader();
header.Decode(buffer);
return header;
}
void OnReadHeaderComplete(TransportAsyncCallbackArgs args)
{
if (args.Exception != null)
{
AmqpTrace.Provider.AmqpLogError(this, "ReadHeader", args.Exception.Message);
this.Complete(args);
return;
}
try
{
ProtocolHeader receivedHeader = new ProtocolHeader();
receivedHeader.Decode(new ByteBuffer(args.Buffer, args.Offset, args.Count));
#if DEBUG
receivedHeader.Trace(false);
AmqpTrace.Provider.AmqpLogOperationVerbose(this, TraceOperation.Receive, receivedHeader);
#endif
if (!receivedHeader.Equals(this.sentHeader))
{
// TODO: need to reconnect with the reply version if supported
throw new AmqpException(AmqpErrorCode.NotImplemented, AmqpResources.GetString(AmqpResources.AmqpProtocolVersionNotSupported, this.sentHeader, receivedHeader));
}
// upgrade transport
TransportBase secureTransport = this.settings.TransportProviders[this.providerIndex].CreateTransport(args.Transport, true);
AmqpTrace.Provider.AmqpUpgradeTransport(this, args.Transport, secureTransport);
args.Transport = secureTransport;
IAsyncResult result = args.Transport.BeginOpen(this.timeoutHelper.RemainingTime(), this.OnTransportOpenCompete, args);
if (result.CompletedSynchronously)
{
this.HandleTransportOpened(result);
}
}
catch (Exception exp)
{
if (Fx.IsFatal(exp))
{
throw;
}
AmqpTrace.Provider.AmqpLogError(this, "OnProtocolHeader", exp.Message);
args.Exception = exp;
this.Complete(args);
}
}
void OnReceiveFrameBuffer(ByteBuffer buffer)
{
if (this.State <= AmqpObjectState.OpenClosePipe)
{
Fx.Assert(buffer.Length == AmqpConstants.ProtocolHeaderSize, "protocol header size is wrong");
try
{
ProtocolHeader header = new ProtocolHeader();
header.Decode(buffer);
this.OnProtocolHeader(header);
}
catch (Exception exception)
{
if (Fx.IsFatal(exception))
{
throw;
}
AmqpTrace.Provider.AmqpLogError(this, "OnProtocolHeader", exception.Message);
this.TerminalException = exception;
this.Abort();
}
}
else
{
try
{
this.OnFrameBuffer(buffer);
}
catch (Exception exception)
{
if (Fx.IsFatal(exception))
{
throw;
}
AmqpTrace.Provider.AmqpLogError(this, "OnFrame", exception.Message);
this.SafeClose(exception);
}
}
}