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SNIStreams.NetCoreApp.cs
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SNIStreams.NetCoreApp.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.Net.Security;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using System.Net.Sockets;
using System;
namespace Microsoft.Data.SqlClient.SNI
{
internal sealed partial class SNISslStream
{
public override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
ValueTask<int> valueTask = ReadAsync(new Memory<byte>(buffer, offset, count), cancellationToken);
if (valueTask.IsCompletedSuccessfully)
{
return Task.FromResult(valueTask.Result);
}
else
{
return valueTask.AsTask();
}
}
public override async ValueTask<int> ReadAsync(Memory<byte> buffer, CancellationToken cancellationToken = default)
{
await _readAsyncSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false);
try
{
return await base.ReadAsync(buffer, cancellationToken).ConfigureAwait(false);
}
finally
{
_readAsyncSemaphore.Release();
}
}
public override Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
ValueTask valueTask = WriteAsync(new Memory<byte>(buffer, offset, count), cancellationToken);
if (valueTask.IsCompletedSuccessfully)
{
return Task.CompletedTask;
}
else
{
return valueTask.AsTask();
}
}
public override async ValueTask WriteAsync(ReadOnlyMemory<byte> buffer, CancellationToken cancellationToken = default)
{
await _writeAsyncSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false);
try
{
await base.WriteAsync(buffer, cancellationToken).ConfigureAwait(false);
}
finally
{
_writeAsyncSemaphore.Release();
}
}
}
internal sealed partial class SNINetworkStream
{
public override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
ValueTask<int> valueTask = ReadAsync(new Memory<byte>(buffer, offset, count), cancellationToken);
if (valueTask.IsCompletedSuccessfully)
{
return Task.FromResult(valueTask.Result);
}
else
{
return valueTask.AsTask();
}
}
public override async ValueTask<int> ReadAsync(Memory<byte> buffer, CancellationToken cancellationToken = default)
{
await _readAsyncSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false);
try
{
return await base.ReadAsync(buffer, cancellationToken).ConfigureAwait(false);
}
finally
{
_readAsyncSemaphore.Release();
}
}
// Prevent the WriteAsync collisions by running the task in a Semaphore Slim
public override Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
ValueTask valueTask = WriteAsync(new Memory<byte>(buffer, offset, count), cancellationToken);
if (valueTask.IsCompletedSuccessfully)
{
return Task.CompletedTask;
}
else
{
return valueTask.AsTask();
}
}
public override async ValueTask WriteAsync(ReadOnlyMemory<byte> buffer, CancellationToken cancellationToken = default)
{
await _writeAsyncSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false);
try
{
await base.WriteAsync(buffer, cancellationToken).ConfigureAwait(false);
}
finally
{
_writeAsyncSemaphore.Release();
}
}
}
}