diff options
Diffstat (limited to '')
-rw-r--r-- | src/jaegertracing/thrift/lib/netstd/Thrift/Transport/Client/TNamedPipeTransport.cs | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/jaegertracing/thrift/lib/netstd/Thrift/Transport/Client/TNamedPipeTransport.cs b/src/jaegertracing/thrift/lib/netstd/Thrift/Transport/Client/TNamedPipeTransport.cs new file mode 100644 index 000000000..7dfe0131e --- /dev/null +++ b/src/jaegertracing/thrift/lib/netstd/Thrift/Transport/Client/TNamedPipeTransport.cs @@ -0,0 +1,108 @@ +// Licensed to the Apache Software Foundation(ASF) under one +// or more contributor license agreements.See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership.The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +using System; +using System.IO.Pipes; +using System.Threading; +using System.Threading.Tasks; + +namespace Thrift.Transport.Client +{ + // ReSharper disable once InconsistentNaming + public class TNamedPipeTransport : TTransport + { + private NamedPipeClientStream PipeStream; + private int ConnectTimeout; + + public TNamedPipeTransport(string pipe, int timeout = Timeout.Infinite) + : this(".", pipe, timeout) + { + } + + public TNamedPipeTransport(string server, string pipe, int timeout = Timeout.Infinite) + { + var serverName = string.IsNullOrWhiteSpace(server) ? server : "."; + ConnectTimeout = (timeout > 0) ? timeout : Timeout.Infinite; + + PipeStream = new NamedPipeClientStream(serverName, pipe, PipeDirection.InOut, PipeOptions.None); + } + + public override bool IsOpen => PipeStream != null && PipeStream.IsConnected; + + public override async Task OpenAsync(CancellationToken cancellationToken) + { + if (IsOpen) + { + throw new TTransportException(TTransportException.ExceptionType.AlreadyOpen); + } + + await PipeStream.ConnectAsync( ConnectTimeout, cancellationToken); + } + + public override void Close() + { + if (PipeStream != null) + { + PipeStream.Dispose(); + PipeStream = null; + } + } + + public override async ValueTask<int> ReadAsync(byte[] buffer, int offset, int length, CancellationToken cancellationToken) + { + if (PipeStream == null) + { + throw new TTransportException(TTransportException.ExceptionType.NotOpen); + } + + return await PipeStream.ReadAsync(buffer, offset, length, cancellationToken); + } + + public override async Task WriteAsync(byte[] buffer, int offset, int length, CancellationToken cancellationToken) + { + if (PipeStream == null) + { + throw new TTransportException(TTransportException.ExceptionType.NotOpen); + } + + // if necessary, send the data in chunks + // there's a system limit around 0x10000 bytes that we hit otherwise + // MSDN: "Pipe write operations across a network are limited to 65,535 bytes per write. For more information regarding pipes, see the Remarks section." + var nBytes = Math.Min(15 * 4096, length); // 16 would exceed the limit + while (nBytes > 0) + { + await PipeStream.WriteAsync(buffer, offset, nBytes, cancellationToken); + offset += nBytes; + length -= nBytes; + nBytes = Math.Min(nBytes, length); + } + } + + public override async Task FlushAsync(CancellationToken cancellationToken) + { + if (cancellationToken.IsCancellationRequested) + { + await Task.FromCanceled(cancellationToken); + } + } + + protected override void Dispose(bool disposing) + { + PipeStream.Dispose(); + } + } +} |