// Note: *not* consuming the final FrameEnd is the correct behavior.
public override int Read(byte[] buffer, int offset, int count)
{
int toRead;
tryAgain: // label/goto vs fake while loop...
{
toRead = Math.Min(_currentFrameLenLeft, count);
if (toRead == 0)
{
if (_remainingTotalBody == 0)
{
return(0); // EOF
}
ParseFrame(); // updates _currentFrameLenLeft and _remainingTotalBody
goto tryAgain;
}
}
var read = _innerStream.Read(buffer, offset, toRead, fillBuffer: true);
_position += read;
_currentFrameLenLeft -= read;
return(read);
}
public static byte[] Copy(RingBufferStreamAdapter stream, int bodySize)
{
if (bodySize == 0) return Empty;
var buffer = new byte[bodySize]; // more allocations. sad!
var read = stream.Read(buffer, 0, (int)bodySize);
if (read != bodySize) throw new Exception("Read less than body size");
return buffer;
}
public void FillBufferWithLock(byte[] buffer, int count, bool reverse = true)
{
int totalRead = 0;
while (totalRead < count)
{
totalRead += _ringBufferStream.Read(buffer, totalRead, count - totalRead, fillBuffer: true);
}
if (reverse && BitConverter.IsLittleEndian && count > 1)
{
Array.Reverse(buffer);
}
}
public static byte[] Copy(RingBufferStreamAdapter stream, int bodySize)
{
if (bodySize == 0)
{
return(Empty);
}
var buffer = new byte[bodySize]; // more allocations. sad!
var read = stream.Read(buffer, 0, (int)bodySize);
if (read != bodySize)
{
throw new Exception("Read less than body size");
}
return(buffer);
}
public void WritesOf31ReadsOf31_BufferOf32()
{
var autoResEv = new AutoResetEvent(false);
Socket acceptedSocket = null;
var socketOut = new Socket(SocketType.Stream, ProtocolType.Tcp);
var socketAccept = new Socket(SocketType.Stream, ProtocolType.Tcp);
socketAccept.Bind(new IPEndPoint(IPAddress.Any, 6868));
var socketEvArgs = new SocketAsyncEventArgs();
socketEvArgs.Completed += (sender, args) =>
{
acceptedSocket = args.AcceptSocket;
autoResEv.Set();
};
socketAccept.Listen(1);
if (!socketAccept.AcceptAsync(socketEvArgs))
{
acceptedSocket = socketEvArgs.AcceptSocket;
}
socketOut.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
socketOut.Connect(new IPEndPoint(IPAddress.Loopback, 6868));
autoResEv.WaitOne();
acceptedSocket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
var cancellationTokenSrc = new CancellationTokenSource();
var cancellationToken = cancellationTokenSrc.Token;
var inputBuffer = new ByteRingBuffer(cancellationToken);
var outputBuffer = new ByteRingBuffer(cancellationToken);
var inputRingBufferStream = new RingBufferStreamAdapter(inputBuffer);
var outputRingBufferStream = new RingBufferStreamAdapter(outputBuffer);
// WriteLoop
var socketConsumer = new SocketConsumer(socketOut, outputBuffer, cancellationToken, () =>
{
});
// ReadLoop
var socketProducer = new SocketProducer(acceptedSocket, inputBuffer, cancellationToken);
var input = new byte[1025];
var output = new byte[1025];
for (int j = 0; j < input.Length; j++)
{
input[j] = (byte)(j % 256);
}
for (ulong i = 0L; i < 1000000; i++)
{
outputRingBufferStream.Write(input, 0, input.Length);
var read = inputRingBufferStream.Read(output, 0, output.Length);
read.Should().Be(output.Length);
for (int x = 0; x < output.Length; x++)
{
output[x].Should().Be((byte)(x % 256), "Iteration " + i + " pos " + x);
}
if (i % 10000 == 0)
{
Console.WriteLine("Iteration " + i);
}
}
cancellationTokenSrc.Cancel();
socketOut.Close();
socketAccept.Close();
}
public void WritesOf31ReadsOf31_BufferOf32()
{
var autoResEv = new AutoResetEvent(false);
Socket acceptedSocket = null;
var socketOut = new Socket(SocketType.Stream, ProtocolType.Tcp);
var socketAccept = new Socket(SocketType.Stream, ProtocolType.Tcp);
socketAccept.Bind(new IPEndPoint(IPAddress.Any, 6868));
var socketEvArgs = new SocketAsyncEventArgs();
socketEvArgs.Completed += (sender, args) =>
{
acceptedSocket = args.AcceptSocket;
autoResEv.Set();
};
socketAccept.Listen(1);
if (!socketAccept.AcceptAsync(socketEvArgs))
{
acceptedSocket = socketEvArgs.AcceptSocket;
}
socketOut.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
socketOut.Connect(new IPEndPoint(IPAddress.Loopback, 6868));
autoResEv.WaitOne();
acceptedSocket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
var cancellationTokenSrc = new CancellationTokenSource();
var cancellationToken = cancellationTokenSrc.Token;
var inputBuffer = new ByteRingBuffer(cancellationToken);
var outputBuffer = new ByteRingBuffer(cancellationToken);
var inputRingBufferStream = new RingBufferStreamAdapter(inputBuffer);
var outputRingBufferStream = new RingBufferStreamAdapter(outputBuffer);
// WriteLoop
var socketConsumer = new SocketConsumer(socketOut, outputBuffer, cancellationToken, () =>
{
});
// ReadLoop
var socketProducer = new SocketProducer(acceptedSocket, inputBuffer, cancellationToken);
var input = new byte[1025];
var output = new byte[1025];
for (int j = 0; j < input.Length; j++)
{
input[j] = (byte)(j % 256);
}
for (ulong i = 0L; i < 1000000; i++)
{
outputRingBufferStream.Write(input, 0, input.Length);
var read = inputRingBufferStream.Read(output, 0, output.Length);
read.Should().Be(output.Length);
for (int x = 0; x < output.Length; x++)
{
output[x].Should().Be((byte)(x % 256), "Iteration " + i + " pos " + x);
}
if (i % 10000 == 0)
{
Console.WriteLine("Iteration " + i);
}
}
cancellationTokenSrc.Cancel();
socketOut.Close();
socketAccept.Close();
}