private void ReaderBuffer(ref ReadOnlySequence <byte> buffer, JT808TcpSession session, out SequencePosition consumed, out SequencePosition examined)
{
consumed = buffer.Start;
examined = buffer.End;
SequenceReader <byte> seqReader = new SequenceReader <byte>(buffer);
if (seqReader.TryPeek(out byte beginMark))
{
if (beginMark != JT808Package.BeginFlag)
{
throw new ArgumentException("Not JT808 Packages.");
}
}
byte mark = 0;
long totalConsumed = 0;
while (!seqReader.End)
{
if (seqReader.IsNext(JT808Package.BeginFlag, advancePast: true))
{
if (mark == 1)
{
try
{
var package = Serializer.HeaderDeserialize(seqReader.Sequence.Slice(totalConsumed, seqReader.Consumed - totalConsumed).FirstSpan);
AtomicCounterService.MsgSuccessIncrement();
if (Logger.IsEnabled(LogLevel.Debug))
{
Logger.LogDebug($"[Atomic Success Counter]:{AtomicCounterService.MsgSuccessCount}");
}
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace($"[Accept Hex {session.Client.RemoteEndPoint}]:{package.OriginalData.ToArray().ToHexString()}");
}
//设直连模式和转发模式的会话如何处理
SessionManager.TryLink(package.Header.TerminalPhoneNo, session);
if (Configuration.MessageQueueType == JT808MessageQueueType.InMemory)
{
MsgProducer.ProduceAsync(session.SessionID, package.OriginalData.ToArray());
}
else
{
MsgProducer.ProduceAsync(package.Header.TerminalPhoneNo, package.OriginalData.ToArray());
}
}
catch (JT808Exception ex)
{
AtomicCounterService.MsgFailIncrement();
if (Logger.IsEnabled(LogLevel.Debug))
{
Logger.LogDebug($"[Atomic Fail Counter]:{AtomicCounterService.MsgFailCount}");
}
Logger.LogError(ex, $"[HeaderDeserialize ErrorCode]:{ ex.ErrorCode}");
}
totalConsumed += (seqReader.Consumed - totalConsumed);
if (seqReader.End)
{
break;
}
seqReader.Advance(1);
mark = 0;
}
mark++;
}
else
{
seqReader.Advance(1);
}
}
if (seqReader.Length == totalConsumed)
{
examined = consumed = buffer.End;
}
else
{
consumed = buffer.GetPosition(totalConsumed);
}
}
private void ReaderBuffer(ref ReadOnlySequence <byte> buffer, JT808TcpSession session, out SequencePosition consumed, out SequencePosition examined)
{
consumed = buffer.Start;
examined = buffer.End;
SequenceReader <byte> seqReader = new SequenceReader <byte>(buffer);
if (seqReader.TryPeek(out byte beginMark))
{
if (beginMark != JT808Package.BeginFlag)
{
throw new ArgumentException("Not JT808 Packages.");
}
}
byte mark = 0;
long totalConsumed = 0;
while (!seqReader.End)
{
if (seqReader.IsNext(JT808Package.BeginFlag, advancePast: true))
{
if (mark == 1)
{
ReadOnlySpan <byte> contentSpan = ReadOnlySpan <byte> .Empty;
try
{
contentSpan = seqReader.Sequence.Slice(totalConsumed, seqReader.Consumed - totalConsumed).FirstSpan;
//过滤掉不是808标准包（14）
//（头）1+（消息 ID ）2+（消息体属性）2+（终端手机号）6+（消息流水号）2+（检验码 ）1+（尾）1
if (contentSpan.Length > 14)
{
var package = Serializer.HeaderDeserialize(contentSpan, minBufferSize: 10240);
AtomicCounterService.MsgSuccessIncrement();
if (Logger.IsEnabled(LogLevel.Debug))
{
Logger.LogDebug($"[Atomic Success Counter]:{AtomicCounterService.MsgSuccessCount}");
}
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace($"[Accept Hex {session.Client.RemoteEndPoint}]:{package.OriginalData.ToArray().ToHexString()}");
}
SessionManager.TryLink(package.Header.TerminalPhoneNo, session);
if (JT808UseType == JT808UseType.Normal)
{
JT808NormalReplyMessageHandler.Processor(package, session);
}
else if (JT808UseType == JT808UseType.Queue)
{
MsgProducer.ProduceAsync(package.Header.TerminalPhoneNo, package.OriginalData.ToArray());
}
}
}
catch (JT808Exception ex)
{
AtomicCounterService.MsgFailIncrement();
if (Logger.IsEnabled(LogLevel.Information))
{
Logger.LogInformation($"[Atomic Fail Counter]:{AtomicCounterService.MsgFailCount}");
}
Logger.LogError($"[HeaderDeserialize ErrorCode]:{ ex.ErrorCode},[ReaderBuffer]:{contentSpan.ToArray().ToHexString()}");
}
totalConsumed += (seqReader.Consumed - totalConsumed);
if (seqReader.End)
{
break;
}
seqReader.Advance(1);
mark = 0;
}
mark++;
}
else
{
seqReader.Advance(1);
}
}
if (seqReader.Length == totalConsumed)
{
examined = consumed = buffer.End;
}
else
{
consumed = buffer.GetPosition(totalConsumed);
}
}