public static async Task CopyToUntilCanceledOrCompletedAsync(this PipeReader reader, PipeWriter writer, CancellationToken cancel)
{
using var cancelRegistration = cancel.Register(delegate
{
// If we get canceled, indicate operation cancellation on both pipes to break out of the loop.
// The purpose of this here is to avoid throwing exceptions for cancellation, instead using the graceful signal.
// Just because exceptions cost extra CPU time that we want to avoid when handling load spikes (such as mass disconnects).
reader.CancelPendingRead();
writer.CancelPendingFlush();
});
// We copy until we encounter either a read cancellation (upstream reached end of stream) or a write
// completion (downstream reached end of stream) or a write cancellation (downstream requested graceful stop).
while (true)
{
var readResult = await reader.ReadAsync(CancellationToken.None);
if (readResult.IsCanceled)
{
break;
}
try
{
if (!readResult.Buffer.IsEmpty)
{
foreach (var segment in readResult.Buffer)
{
var memory = writer.GetMemory(segment.Length);
segment.CopyTo(memory);
writer.Advance(segment.Length);
}
var flushResult = await writer.FlushAsync(CancellationToken.None);
if (flushResult.IsCanceled || flushResult.IsCompleted)
{
break;
}
}
if (readResult.IsCompleted)
{
break;
}
}
finally
{
reader.AdvanceTo(readResult.Buffer.End);
}
}
}
public async Task SyncReadAsyncWithCancellationToken()
{
PipeWriter writer = _pipe.Writer;
PipeReader reader = _pipe.Reader;
for (int i = 0; i < InnerIterationCount; i++)
{
ReadResult result = await reader.ReadAsync(_cts.Token);
reader.AdvanceTo(result.Buffer.Start);
}
}
private static async ValueTask <TResult> ReadAsync <TResult, TParser>(this PipeReader reader, TParser parser, CancellationToken token)
where TParser : struct, IBufferReader <TResult>
{
for (SequencePosition consumed; parser.RemainingBytes > 0; reader.AdvanceTo(consumed))
{
var readResult = await reader.ReadAsync(token).ConfigureAwait(false);
readResult.ThrowIfCancellationRequested(token);
parser.Append <TResult, TParser>(readResult.Buffer, out consumed);
}
return(parser.Complete());
}
public static async Task <byte[]> ReadAsync(this PipeReader pipeReader, int numBytes)
{
while (true)
{
var result = await pipeReader.ReadAsync();
if (result.Buffer.Length < numBytes)
{
pipeReader.AdvanceTo(result.Buffer.Start, result.Buffer.End);
continue;
}
var buffer = result.Buffer.Slice(0, numBytes);
var bytes = buffer.ToArray();
pipeReader.AdvanceTo(buffer.End);
return(bytes);
}
}
protected async ValueTask <JsonTokenType> ReadNextTokenAsync(PipeReader pipe, JsonReaderState state, CancellationToken cancellationToken)
{
bool ForwardException(PipeReader pipe, Exception e)
{
pipe.Complete(e);
return(false);
}
if (pipe == null)
{
throw new ArgumentNullException(nameof(pipe));
}
try
{
while (true)
{
if (!pipe.TryRead(out ReadResult readResult))
{
readResult = await pipe.ReadAsync(cancellationToken);
}
if (readResult.IsCanceled)
{
throw new OperationCanceledException();
}
JsonTokenType IsReaderReady(ReadResult readResult, JsonReaderState state)
{
var reader = new Utf8JsonReader(readResult.Buffer, readResult.IsCompleted, state);
var readerReady = reader.Read();
return(readerReady ? reader.TokenType : JsonTokenType.None);
}
var token = IsReaderReady(readResult, state);
if (token == JsonTokenType.None && readResult.IsCompleted)
{
pipe.Complete();
return(EndOfDocument);
}
pipe.AdvanceTo(readResult.Buffer.Start, readResult.Buffer.End);
if (token != JsonTokenType.None)
{
return(token);
}
}
}
catch (Exception e) when(ForwardException(pipe, e))
{
throw;
}
}
/// <inheritdoc/>
public async Task RunAsync(
CancellationToken cancellationToken = default)
{
try
{
FlushResult flushResult = default;
ReadResult readResult = default;
while (!flushResult.IsCompleted)
{
readResult = await _input.ReadAsync(cancellationToken);
var buffer = readResult.Buffer;
if (buffer.IsEmpty && readResult.IsCompleted)
{
return;
}
while (TryHandleElement(ref buffer, out var status))
{
if (status == EbmlHandleStatus.NewBlock &&
!TryWriteBlock(_bestAudioTrack, _outputPipe.Writer,
_state.BlockData))
{
return;
}
if (status == EbmlHandleStatus.UnsupportedFile ||
status == EbmlHandleStatus.NoMoreData)
{
return;
}
if (status == EbmlHandleStatus.MissingData)
{
break;
}
}
flushResult = await _outputPipe.Writer.FlushAsync(
cancellationToken);
_input.AdvanceTo(buffer.Start, buffer.End);
}
}
finally
{
_ = await _outputPipe.Writer.FlushAsync(cancellationToken);
await _input.CompleteAsync();
await _outputPipe.Writer.CompleteAsync();
}
private async Task <bool> ReceiveHandshakeResponseAsync(PipeReader input, CancellationToken token)
{
while (true)
{
var result = await input.ReadAsync(token);
var buffer = result.Buffer;
var consumed = buffer.Start;
var examined = buffer.End;
try
{
if (result.IsCanceled)
{
throw new InvalidOperationException("Connection cancelled before handshake complete.");
}
if (!buffer.IsEmpty)
{
if (ServiceProtocol.TryParseMessage(ref buffer, out var message))
{
consumed = buffer.Start;
examined = consumed;
if (!(message is HandshakeResponseMessage handshakeResponse))
{
throw new InvalidDataException(
$"{message.GetType().Name} received when waiting for handshake response.");
}
if (string.IsNullOrEmpty(handshakeResponse.ErrorMessage))
{
return(true);
}
// Handshake error. Will stop reconnect.
Log.HandshakeError(_logger, handshakeResponse.ErrorMessage);
return(false);
}
}
if (result.IsCompleted)
{
// Not enough data, and we won't be getting any more data.
throw new InvalidOperationException("Service disconnected before sending a handshake response.");
}
}
finally
{
input.AdvanceTo(consumed, examined);
}
}
}
private async Task ReceiveLoop()
{
try
{
while (!_cancelTokenSource.IsCancellationRequested)
{
var result = await _pipeReader.ReadAsync(_cancelTokenSource.Token);
var buffer = result.Buffer;
var readLength = 0L;
try
{
if (0 < buffer.Length)
{
readLength = onReceived?.Invoke(ref buffer) ?? buffer.Length;
}
if (result.IsCanceled)
{
readLength = buffer.Length;
break;
}
if (result.IsCompleted)
{
readLength = buffer.Length;
break;
}
}
catch (Exception ex)
{
readLength = buffer.Length;
onError?.Invoke(ex);
break;
}
finally
{
_pipeReader.AdvanceTo(buffer.GetPosition(readLength));
}
}
}
catch (OperationCanceledException)
{
// cancel~
}
finally
{
await _pipeReader.CompleteAsync();
}
}
public async Task <Handshake> GetHandshakeMessage(PipeReader input)
{
ReadResult readAsync = await input.ReadAsync().ConfigureAwait(false);
if (readAsync.Buffer.Length >= FrameHeaderSize)
{
ReadOnlySequence <byte> handshakeBytes =
readAsync.Buffer.Slice(0, FrameHeaderSize);
ArraySegment <byte> arraySegment = handshakeBytes.ToArraySegment();
if (Handshake.TryParse(arraySegment, out Handshake result))
{
input.AdvanceTo(readAsync.Buffer.GetPosition(FrameHeaderSize));
return(result);
}
}
input.AdvanceTo(readAsync.Buffer.GetPosition(0));
return(null);
}
public async ValueTask <byte[]> ReadAsync(CancellationToken cancellationToken = default)
{
var result = await _reader.ReadAsync(cancellationToken).ConfigureAwait(false);
var buffer = result.Buffer;
try {
return(buffer.ToArray());
} finally {
_reader.AdvanceTo(buffer.End);
}
}
// fast path - attempt to consume metadata synchronously
private bool TryConsume()
{
if (!reader.TryReadBlock(LogEntryMetadata.Size, out var result) || result.IsCanceled)
{
return(false);
}
metadata = new(result.Buffer, out var metadataEnd);
reader.AdvanceTo(metadataEnd);
consumed = false;
return(true);
}
protected async Task ReadPipeAsync(PipeReader reader)
{
var cts = _cts;
while (!cts.IsCancellationRequested)
{
var result = await reader.ReadAsync(cts.Token);
var buffer = result.Buffer;
SequencePosition consumed = buffer.Start;
SequencePosition examined = buffer.End;
try
{
if (result.IsCanceled)
{
break;
}
var completed = result.IsCompleted;
if (buffer.Length > 0)
{
if (!ReaderBuffer(ref buffer, out consumed, out examined))
{
completed = true;
break;
}
}
if (completed)
{
break;
}
}
catch (Exception e)
{
OnError("Protocol error", e);
// close the connection if get a protocol error
Close();
break;
}
finally
{
reader.AdvanceTo(consumed, examined);
}
}
reader.Complete();
WriteEOFPackage();
}
/// <summary>
/// Read a single message from the pipe reader. Ensure the reader completes without additional data.
/// </summary>
/// <param name="input">The request pipe reader.</param>
/// <returns>Complete message data.</returns>
public static async ValueTask <byte[]> ReadSingleMessageAsync(this PipeReader input)
{
byte[] completeMessageData = null;
while (true)
{
var result = await input.ReadAsync();
var buffer = result.Buffer;
try
{
if (result.IsCanceled)
{
throw new InvalidDataException("Incoming message cancelled.");
}
if (!buffer.IsEmpty)
{
if (completeMessageData != null)
{
throw new InvalidDataException("Additional data after the message received.");
}
if (TryReadMessage(ref buffer, out var data))
{
// Store the message data
// Need to verify the request completes with no additional data
completeMessageData = data;
}
}
if (result.IsCompleted)
{
if (completeMessageData != null)
{
// Finished and the complete message has arrived
return(completeMessageData);
}
throw new InvalidDataException("Incomplete message.");
}
}
finally
{
// The buffer was sliced up to where it was consumed, so we can just advance to the start.
// We mark examined as buffer.End so that if we didn't receive a full frame, we'll wait for more data
// before yielding the read again.
input.AdvanceTo(buffer.Start, buffer.End);
}
}
}
public static async Task WriteFromBase64Urlsafe(
this Stream stream, PipeReader base64Pipe,
CancellationToken cancelToken = default)
{
if (stream is null)
{
throw new ArgumentNullException(nameof(stream));
}
if (base64Pipe is null)
{
throw new ArgumentNullException(nameof(base64Pipe));
}
try
{
using (var base64Buffer = bytesPool.Rent())
{
Memory <byte> base64Memory = base64Buffer.Memory;
int base64Remaining = 0;
while (true)
{
ReadResult readResult = await base64Pipe
.ReadAsync(cancelToken)
.ConfigureAwait(false);
(base64Remaining, _) = await stream
.WritePartialFromBase64Urlsafe(readResult.Buffer, base64Memory, base64Remaining, cancelToken)
.ConfigureAwait(false);
base64Pipe.AdvanceTo(readResult.Buffer.End);
if (readResult.IsCompleted)
{
break;
}
}
base64Memory = base64Memory.Slice(0, base64Remaining);
await stream.WriteFinalFromBase64Urlsafe(base64Memory, cancelToken)
.ConfigureAwait(false);
}
await stream.FlushAsync(cancelToken).ConfigureAwait(false);
base64Pipe.Complete();
}
catch (Exception e)
{
base64Pipe.Complete(e);
throw;
}
}
private async Task ConsumeLoop(PipeReader audioData)
{
Debug.Assert(_cts is not null);
SpinWait spinner = new();
while (!_cts.IsCancellationRequested)
{
spinner.SpinOnce();
ReadResult readResult = await audioData.ReadAsync();
audioData.AdvanceTo(readResult.Buffer.End);
}
}
private async Task ProcessLogs(PipeReader reader, CancellationToken cancellationToken, bool stdOut = true)
{
while (true)
{
var result = await reader.ReadAsync(cancellationToken);
try
{
var position = result.Buffer.PositionOf((byte)'\r');
if (position != null)
{
var line = GetString(result.Buffer.Slice(0, position.Value));
if (stdOut)
{
_logger.LogDebug("Ffmpeg out: {0}", line);
}
else
{
_logger.LogError("Ffmpeg err: {0}", line);
}
reader.AdvanceTo(position.Value);
}
else
{
reader.AdvanceTo(result.Buffer.GetPosition(0));
}
}
catch (Exception ex)
{
_logger.LogError(ex, "Failed to read from pipe");
break;
}
if (result.IsCompleted)
{
break;
}
}
}
public async Task DrainReaderTillCompletedAsync(PipeReader reader)
{
while (true)
{
var readResult = await reader.ReadAsync(this.TimeoutToken);
reader.AdvanceTo(readResult.Buffer.End);
if (readResult.IsCompleted)
{
break;
}
}
}
/// <summary>
/// Parses an HTTP form body.
/// </summary>
/// <param name="cancellationToken">The <see cref="CancellationToken"/>.</param>
/// <returns>The collection containing the parsed HTTP form body.</returns>
public async Task <Dictionary <string, StringValues> > ReadFormAsync(CancellationToken cancellationToken = default)
{
KeyValueAccumulator accumulator = default;
while (true)
{
var readResult = await _pipeReader.ReadAsync(cancellationToken);
var buffer = readResult.Buffer;
if (!buffer.IsEmpty)
{
try
{
ParseFormValues(ref buffer, ref accumulator, readResult.IsCompleted);
}
catch
{
_pipeReader.AdvanceTo(buffer.Start);
throw;
}
}
if (readResult.IsCompleted)
{
_pipeReader.AdvanceTo(buffer.End);
if (!buffer.IsEmpty)
{
throw new InvalidOperationException("End of body before form was fully parsed.");
}
break;
}
_pipeReader.AdvanceTo(buffer.Start, buffer.End);
}
return(accumulator.GetResults());
}
/// <summary>
/// Asynchronously reads to the end of the current System.IO.Pipelines.PipeReader.
/// Requires a call to BodyReader.Advance after use ReadResult.Buffer
/// </summary>
/// <param name="pipeReader"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public static async ValueTask <Memory <byte> > ReadToEndAsync(this PipeReader pipeReader, CancellationToken cancellationToken = default)
{
while (true)
{
// Calling PipeReader.ReadAsync() Does not mean it reads the entire stream:
//// 1、It Start reading the stream from PipeReader.InnerStream.Position
//// 2. Length of First buffer to read = PipeReader._readHead'length = PipeReader.InnerStream.Length - PipeReader.InnerStream.Position.
////// If PipeReader._readHead'length is zero, it will read the stream until it ends
var readResult = await pipeReader.ReadAsync(cancellationToken);
var buffer = readResult.Buffer;
if (readResult.IsCompleted)
{
var newbuffer = new byte[buffer.Length];
buffer.CopyTo(newbuffer);
pipeReader.AdvanceTo(buffer.Start);
return(newbuffer.AsMemory());
}
pipeReader.AdvanceTo(buffer.Start, buffer.End);
}
}
// Reverted. Recommend formatting for table --------------------------------------
#region snippet
async ValueTask <Message?> ReadSingleMessageAsync(PipeReader reader,
CancellationToken cancellationToken = default)
{
while (true)
{
ReadResult result = await reader.ReadAsync(cancellationToken);
ReadOnlySequence <byte> buffer = result.Buffer;
// In the event that no message is parsed successfully, mark consumed
// as nothing and examined as the entire buffer.
SequencePosition consumed = buffer.Start;
SequencePosition examined = buffer.End;
try
{
if (TryParseLines(ref buffer, out Message message))
{
// A single message was successfully parsed so mark the start of the
// parsed buffer as consumed. TryParseLines trims the buffer to
// point to the data after the message was parsed.
consumed = buffer.Start;
// Examined is marked the same as consumed here, so the next call
// to ReadSingleMessageAsync will process the next message if there's
// one.
examined = consumed;
return(message);
}
// There's no more data to be processed.
if (result.IsCompleted)
{
if (buffer.Length > 0)
{
// The message is incomplete and there's no more data to process.
throw new InvalidDataException("Incomplete message.");
}
break;
}
}
finally
{
reader.AdvanceTo(consumed, examined);
}
}
return(null);
}
/// <inheritdoc />
protected override async Task ExecuteAsync(CancellationToken cancellationToken)
{
while (true)
{
Logger?.LogTrace("Start reading from pipe");
var readResult = await _reader.ReadAsync(cancellationToken)
.ConfigureAwait(false);
var buffer = readResult.Buffer;
var position = buffer.Start;
while (buffer.TryGet(ref position, out var memory))
{
Logger?.LogTrace("Pass through of {numBytes} bytes", memory.Length);
// Don't use the cancellation token source from above. Otherwise
// data might be lost.
await _writer.WriteAsync(memory, CancellationToken.None)
.ConfigureAwait(false);
if (readResult.IsCanceled || readResult.IsCompleted)
{
break;
}
}
_reader.AdvanceTo(buffer.End);
await _writer.FlushAsync(CancellationToken.None)
.ConfigureAwait(false);
if (readResult.IsCanceled || readResult.IsCompleted)
{
Logger?.LogTrace("Cancelled={cancelled} or completed={completed}", readResult.IsCanceled, readResult.IsCompleted);
break;
}
}
}
internal static async ValueTask <(bool isCancelled, bool isCompleted)> ParseLineAsync(PipeReader reader, Memory <string?> lineBuffer, bool isHeader = false, byte fieldDelimiter = 44)
{
int index = 0;
var readResult = await reader.ReadAsync();
while (true)
{
if (readResult.IsCanceled)
{
break;
}
var buffer = readResult.Buffer;
var(isEol, eolPosition) = CsvParser.FindEol(buffer);
if (readResult.IsCompleted && !isEol)
{
isEol = true;
}
var recordBuffer = buffer.Slice(buffer.Start, eolPosition ?? buffer.End);
ParseLine(ref recordBuffer, lineBuffer.Span, ref index, isEol, isHeader, fieldDelimiter);
if (isEol && recordBuffer.IsEmpty)
{
var advance = eolPosition is null ? buffer.End : buffer.GetPosition(1, eolPosition.Value);
reader.AdvanceTo(advance);
break;
}
reader.AdvanceTo(recordBuffer.Start, recordBuffer.End);
readResult = await reader.ReadAsync();
}
return(readResult.IsCanceled, readResult.IsCompleted);
}
private async Task SendingPipeSendAsync(PipeReader reader)
{
var senderSocketLock = new AsyncLock();
while (_active)
{
try {
var result = await reader.ReadAsync(_linkedToken);
if (result.IsCanceled)
{
break;
}
var sequence = result.Buffer;
if (!sequence.IsEmpty)
{
using (await senderSocketLock.LockAsync()) {
var bytesCount = await _socket.SendBuffersAsync(sequence, _linkedToken);
reader.AdvanceTo(sequence.End);
if (bytesCount < 0)
{
_localSource.Cancel(false);
}
}
}
if (_stopping)
{
_localSource.Cancel(false);
}
if (result.IsCompleted)
{
break;
}
} catch (OperationCanceledException oce) {
reader.Complete(oce);
return;
} catch (SocketException se) when(se.ErrorCode.In(10054, 104))
{
_localSource.Cancel(false);
reader.Complete(se);
return;
} catch (Exception e) {
_logger.LogError(e, "While sending bytes in the socket");
reader.Complete(e);
return;
}
}
reader.Complete();
}
bool TryReadLine(ref ReadOnlySequence <byte> buffer, out ReadOnlySequence <byte> line)
{
SequencePosition?position = buffer.PositionOf((byte)'\n');
if (position == null)
{
line = default;
return(false);
}
line = buffer.Slice(0, position.Value);
_reader.AdvanceTo(position.Value);
buffer = buffer.Slice(buffer.GetPosition(1, position.Value));
return(true);
}
async Task SendAsync()
{
PipeReader reader = _requestPipe.Reader;
try
{
while (true)
{
ReadResult result = await reader.ReadAsync();
ReadOnlySequence <byte> buffer = result.Buffer;
try
{
if (!buffer.IsEmpty)
{
for (SequencePosition position = buffer.Start; buffer.TryGet(ref position, out ReadOnlyMemory <byte> segment);)
{
if (Log != null && Log.Switch.ShouldTrace(TraceEventType.Verbose))
{
string data = Encodings.Utf8.ToString(segment.Span);
if (!string.IsNullOrWhiteSpace(data))
{
Log.TraceInformation(data);
}
}
await WriteToSocketAsync(segment).ConfigureAwait(false);
}
}
else if (result.IsCompleted)
{
break;
}
}
finally
{
reader.AdvanceTo(buffer.End);
}
}
}
catch (Exception e)
{
Log.TraceEvent(TraceEventType.Error, 0, e.ToString());
}
finally
{
reader.Complete();
}
}
protected async Task ReadPipeAsync(PipeReader reader)
{
while (true)
{
var result = await reader.ReadAsync();
var buffer = result.Buffer;
SequencePosition consumed = buffer.Start;
SequencePosition examined = buffer.End;
try
{
if (result.IsCanceled)
{
break;
}
var completed = result.IsCompleted;
while (true)
{
var package = ReaderBuffer(buffer, out consumed, out examined);
if (package != null)
{
await OnPackageReceived(package);
}
if (examined.Equals(buffer.End))
{
break;
}
buffer = buffer.Slice(examined);
}
if (completed)
{
break;
}
}
finally
{
reader.AdvanceTo(consumed, examined);
}
}
reader.Complete();
}
public static async Task ReceiveHandshakeRequestAsync(PipeReader input)
{
using (var cts = new CancellationTokenSource(DefaultHandshakeTimeout))
{
while (true)
{
var result = await input.ReadAsync(cts.Token);
var buffer = result.Buffer;
var consumed = buffer.Start;
var examined = buffer.End;
try
{
if (!buffer.IsEmpty)
{
if (ServiceProtocol.TryParseMessage(ref buffer, out var message))
{
consumed = buffer.Start;
examined = consumed;
if (!(message is HandshakeRequestMessage handshakeRequest))
{
throw new InvalidDataException(
$"{message.GetType().Name} received when waiting for handshake request.");
}
if (handshakeRequest.Version != ServiceProtocol.Version)
{
throw new InvalidDataException("Protocol version not supported.");
}
break;
}
}
if (result.IsCompleted)
{
// Not enough data, and we won't be getting any more data.
throw new InvalidOperationException(
"Service connectioned disconnected before sending a handshake request");
}
}
finally
{
input.AdvanceTo(consumed, examined);
}
}
}
}
static async Task ReadBlockHashPipeAsync(PipeReader reader)
{
// Read Bitcoin block ids from a PipeReader
while (_zmqRunning)
{
var rr = await reader.ReadAsync();
var buf = rr.Buffer;
var blockId = new KzUInt256();
buf.ToSpan().CopyTo(blockId.Span);
reader.AdvanceTo(buf.GetPosition(32));
KzH.WriteLine($"BlockId parsed id={blockId.ToHex()}");
}
}
/// <summary>
/// Receive multiple messages from a pipe
/// </summary>
public static async IAsyncEnumerable <T> ReceiveAsync <T>(PipeReader source, MessagePipeOptions options = default)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
options = options.Normalize();
while (true)
{
// obtain the next buffer
options.OnLog("ReceiveAsync obtaining buffer...");
if (!source.TryRead(out var result))
{
result = await source.ReadAsync(options.CancellationToken).ConfigureAwait(false);
}
if (result.IsCanceled)
{
ThrowCancelled();
}
// consume the buffer
var buffer = result.Buffer;
options.OnLog($"ReceiveAsync got {buffer.Length} bytes");
int processed = 0;
while (options.TryRead <T>(ref buffer, out var item))
{
processed++;
yield return(item);
}
if (processed == 0 && result.IsCompleted) // check for termination
{
// we have everything, and there will never be any more; was it clean?
if (!buffer.IsEmpty)
{
ThrowInputCompletedWithPartialPayload();
}
break;
}
// mark what we consumed (the "ref buffer" means we've sliced it already)
source.AdvanceTo(buffer.Start, buffer.End);
}
if (options.MarkComplete)
{
await source.CompleteAsync().ConfigureAwait(false);
}
options.OnLog("ReceiveAsync completed successfully");
}
internal override async ValueTask <RawResult> Process()
{
var firstChar = await ReadByte();
PipeReader.AdvanceTo(ReadResult.Buffer.Start, ReadResult.Buffer.Slice(1).Start);
if (firstChar == ByteConstants.Dash)
{
var line = await ReadLine();
var redisResponse = line.AsString();
PipeReader.AdvanceTo(line.End);
throw new RedisFailedCommandException(redisResponse, RedisClient.LastCommand);
}
object result;
if (firstChar == ByteConstants.Asterix)
{
var processor = RedisClient.ArrayResultProcessor;
processor.SetMembers(RedisClient, PipeReader, ReadResult, CancellationToken);
result = await processor.Process();
}
else if (firstChar == ByteConstants.Plus)
{
var processor = RedisClient.WordResultProcessor;
processor.SetMembers(RedisClient, PipeReader, ReadResult, CancellationToken);
result = await processor.Process();
}
else if (firstChar == ByteConstants.Colon)
{
var processor = RedisClient.IntegerResultProcessor;
processor.SetMembers(RedisClient, PipeReader, ReadResult, CancellationToken);
result = await processor.Process();
}
else if (firstChar == ByteConstants.Dollar)
{
var processor = RedisClient.DataResultProcessor;
processor.SetMembers(RedisClient, PipeReader, ReadResult, CancellationToken);
result = await processor.Process();
}
else
{
var processor = RedisClient.EmptyResultProcessor;
processor.SetMembers(RedisClient, PipeReader, ReadResult, CancellationToken);
result = await processor.Process();
}
return(new RawResult(result));
}