private void Client_OnPackReceived(object sender, PackEventArgs e)
{
var type = e.Pack.GetType();
Action <object> handler;
if (this.handlers.TryGetValue(type, out handler))
{
handler?.Invoke(e.Pack);
}
}
private async Task BeginRead(Stream ns)
{
Log.Debug("Begin read loop.");
var readBuffer = new RingBufferStream();
ICryptoTransform transform = null;
var br = new BinaryReader(readBuffer);
var buffer = new byte[4096];
int packLen = -1;
try
{
while (true)
{
int count = await ns.ReadAsync(buffer, 0, buffer.Length);
Log.Debug("Read {0} bytes.", count);
if (count <= 0)
{
break;
}
readBuffer.Append(buffer, 0, count);
while (true)
{
//切换加密
if (transform != this.readCrypto)
{
transform = this.readCrypto;
if (transform == null)
{
br = new BinaryReader(readBuffer);
}
else
{
var cs = new CryptoStream(readBuffer, transform, CryptoStreamMode.Read);
br = new BinaryReader(cs);
}
}
if (packLen < 0)
{
if (readBuffer.Length >= 2)
{
packLen = br.ReadUInt16();
readBuffer.ClearPrevious();
}
}
if (packLen == 0)
{
continue;
}
else if (packLen > 0)
{
if (readBuffer.Length >= packLen)
{
var pack = DecodePack(br.ReadBytes(packLen));
Log.Debug("Read pack: {0}.", pack);
if (pack != null)
{
var e = new PackEventArgs(pack);
this.OnPackReceived?.Invoke(this, e);
}
readBuffer.ClearPrevious();
packLen = -1;
}
else
{
break;
}
}
else
{
break;
}
}
}
}
catch (Exception ex)
{
Log.Error("Read Error: {0}", ex.Message);
}
finally
{
Log.Debug("End read.");
try
{
this.writeQueue.CompleteAdding();
}
catch
{
}
ns.Close();
}
}
