public override AnalyzedPacket Filter(ref ReadOnlySequence <byte> buffer)
{
try
{
if (buffer.Length < HEADER_SIZE)
{
return(null);
}
var woringSpan = buffer.First.Span;
var packetTotalSize = C3SockNetUtil.FastBinaryRead.UInt16(woringSpan, 0);
var BodySize = (UInt16)(packetTotalSize - HEADER_SIZE);
var ProtocolId = C3SockNetUtil.FastBinaryRead.UInt16(woringSpan, 2);
var PacketType = C3SockNetUtil.FastBinaryRead.SByte(woringSpan, 4);
if (BodySize == 0)
{
var packet = new AnalyzedPacket
{
SessionUniqueId = 0,
PacketId = ProtocolId,
Head = null,
Body = buffer.ToArray()
};
buffer = buffer.Slice(packetTotalSize);
return(packet);
}
else if (BodySize > 0 && (packetTotalSize >= buffer.Length))
{
var packet = new AnalyzedPacket
{
SessionUniqueId = 0,
PacketId = ProtocolId,
Head = null,
Body = buffer.Slice(HEADER_SIZE, BodySize).ToArray()
};
buffer = buffer.Slice(packetTotalSize);
return(packet);
}
else
{
return(null);
}
}
catch (Exception ex)
{
GLogging.Logger().LogError($"Failed to Filter {ex.ToString()}");
return(null);
}
}
public override AnalyzedPacket Filter(ref ReadOnlySequence <byte> buffer)
{
try
{
ReadOnlySequence <byte> slice;
SequencePosition cursor;
if (!buffer.TrySliceTo(CheckFunc, out slice, out cursor))
{
return(null);
}
buffer = buffer.Slice(cursor).Slice(TerminatorLen);
return(ResolvePackage(slice));
}
catch (Exception ex)
{
GLogging.Logger().LogError($"Failed to Filter {ex.ToString()}");
return(null);
}
}
public override async Task ProcessRequest()
{
var input = _transportConnection.Transport.Input;//_transportConnection.Application.Input;
var currentPipelineFilter = _pipelineFilter;
try
{
while (true)
{
var result = await input.ReadAsync();
var buffer = result.Buffer;
if (result.IsCompleted)
{
OnClosed();
break;
}
while (true)
{
var packageInfo = currentPipelineFilter.Filter(ref buffer);
if (currentPipelineFilter.NextFilter != null)
{
_pipelineFilter = currentPipelineFilter = currentPipelineFilter.NextFilter;
}
if (packageInfo == null)
{
break;
}
OnPackageReceived(packageInfo);
if (buffer.Length == 0)
{
break;
}
}
// AdvanceTo를 안하면 다음 ReadAsync에서 에러 발생으로 접속이 끊어진다.
input.AdvanceTo(buffer.Start, buffer.End);
}
}
catch // 접속이 끊어지면 catch가 호출된다
{
OnClosed();
GLogging.Logger().LogDebug($"Dis Connected: {_transportConnection.ConnectionId} , threadId:{System.Threading.Thread.CurrentThread.ManagedThreadId}");
}
finally
{
input.Complete();
//가끔 여기서 예외발생. Kesterl의 SocketConnection 에서 ThreadPool.UnsafeQueueUserWorkItem 쯤에서 발생
//크게 중요하지는 않는 듯 하다. Send를 하지 않는데 Complet 시켜서 그렇지 않을까라고 생각한다
// 주석 처리하면 예외 발생하지 않고, 접속 끊어지는 것도 잘됨.
//TODO echo 테스트 등에서도 문제 없는지 확인 필요
//_transportConnection.Transport.Output.Complete();
}
await Task.CompletedTask;
}