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removed async. stream adapter - no benefit

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This commit is contained in:
Christian Köllner 2020-04-22 07:20:27 +02:00
parent 4f76073ee5
commit 3ef9a60a7f
4 changed files with 6 additions and 117 deletions
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4
Benchmarking/Benchmark/Benchmark.csproj
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@ -7,8 +7,8 @@
<ItemGroup>
<PackageReference Include="BenchmarkDotNet" Version="0.12.0" />
<PackageReference Include="Capnp.Net.Runtime" Version="1.3.94-g87575f12bf" />
<PackageReference Include="CapnpC.CSharp.MsBuild.Generation" Version="1.3.94-g87575f12bf" />
<PackageReference Include="Capnp.Net.Runtime" Version="1.3.95-g4f76073ee5" />
<PackageReference Include="CapnpC.CSharp.MsBuild.Generation" Version="1.3.95-g4f76073ee5" />
<PackageReference Include="Google.Protobuf" Version="3.11.3" />
<PackageReference Include="Grpc.Net.Client" Version="2.27.0" />
<PackageReference Include="Grpc.Tools" Version="2.27.0">

4
Benchmarking/EchoServiceCapnp/EchoServiceCapnp.csproj
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@ -6,8 +6,8 @@
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Capnp.Net.Runtime" Version="1.3.94-g87575f12bf" />
<PackageReference Include="CapnpC.CSharp.MsBuild.Generation" Version="1.3.92-gdb2d6bce2e" />
<PackageReference Include="Capnp.Net.Runtime" Version="1.3.95-g4f76073ee5" />
<PackageReference Include="CapnpC.CSharp.MsBuild.Generation" Version="1.3.95-g4f76073ee5" />
</ItemGroup>
</Project>

4
Capnp.Net.Runtime/Rpc/MidlayerExtensions.cs
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@ -17,7 +17,7 @@ namespace Capnp.Rpc
/// <param name="bufferSize">Buffer size (bytes). You should choose it according to the maximum expected raw capnp frame size</param>
public static void AddBuffering(this ISupportsMidlayers obj, int bufferSize)
{
obj.InjectMidlayer(s => new Util.DuplexBufferedStream(new Util.AsyncNetworkStreamAdapter(s), bufferSize));
obj.InjectMidlayer(s => new Util.DuplexBufferedStream(s, bufferSize));
}
/// <summary>
@ -27,7 +27,7 @@ namespace Capnp.Rpc
/// <param name="obj"><see cref="TcpRpcServer"/> or <see cref="TcpRpcClient"/></param>
public static void AddBuffering(this ISupportsMidlayers obj)
{
obj.InjectMidlayer(s => new Util.DuplexBufferedStream(new Util.AsyncNetworkStreamAdapter(s)));
obj.InjectMidlayer(s => new Util.DuplexBufferedStream(s));
}
}
}

111
Capnp.Net.Runtime/Util/AsyncNetworkStreamAdapter.cs
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@ -1,111 +0,0 @@
using System;
using System.IO;
using System.Net.Sockets;
using System.Threading;
namespace Capnp.Util
{
internal class AsyncNetworkStreamAdapter : Stream
{
// Async I/O pays off for large payloads. Perf. profiling gave a threshold around 200kB
const int DefaultAsyncThreshold = 200000;
readonly NetworkStream _stream;
readonly int _asyncThreshold;
readonly object _reentrancyBlocker = new object();
Exception? _bufferedException;
public AsyncNetworkStreamAdapter(Stream stream, int asyncThreshold)
{
_asyncThreshold = asyncThreshold;
_stream = stream as NetworkStream ?? throw new ArgumentException("stream argument must be a NetworkStream");
}
public AsyncNetworkStreamAdapter(Stream stream): this(stream, DefaultAsyncThreshold)
{
}
public override bool CanRead => true;
public override bool CanSeek => false;
public override bool CanWrite => true;
public override long Length => 0;
public override long Position
{
get => 0;
set => throw new NotSupportedException();
}
public override void Flush()
{
_stream.FlushAsync();
//_stream.Flush();
}
public override int Read(byte[] buffer, int offset, int count)
{
return _stream.Read(buffer, offset, count);
}
public override long Seek(long offset, SeekOrigin origin)
{
throw new NotSupportedException();
}
public override void SetLength(long value)
{
throw new NotSupportedException();
}
//void WriteCallback(IAsyncResult ar)
//{
// try
// {
// _stream.EndWrite(ar);
// }
// catch (Exception exception)
// {
// Volatile.Write(ref _bufferedException, exception);
// }
//}
public override void Write(byte[] buffer, int offset, int count)
{
_stream.WriteAsync(buffer, offset, count);
//var exception = Volatile.Read(ref _bufferedException);
//if (exception != null)
//{
// Dispose();
// throw exception;
//}
//if (count >= _asyncThreshold)
// _stream.BeginWrite(buffer, offset, count, WriteCallback, null);
//else
// _stream.Write(buffer, offset, count);
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
lock (_reentrancyBlocker)
{
try
{
_stream.Dispose();
}
catch
{
}
}
}
base.Dispose(disposing);
}
}
}