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();
+        }
+    }
+}