Remove MemoryPool and fix System.Buffers version

DotnetCLIVersion.txt

@@ -1 +1 @@
-2.1.300-preview2-008019
+2.1.300-preview2-008022

SharedRuntimeVersion.txt

@@ -1 +1 @@
-2.1.0-preview2-26124-07
+2.1.0-preview2-26129-05

scripts/update-dependencies/Program.cs

@@ -100,6 +100,7 @@ private static IEnumerable<IDependencyUpdater> GetUpdaters()
             yield return CreateRegexPropertyUpdater(config.DependencyFilePath, "SystemCompilerServicesUnsafeVersion", "System.Runtime.CompilerServices.Unsafe");
             yield return CreateRegexPropertyUpdater(config.DependencyFilePath, "SystemMemoryVersion", "System.Memory");
             yield return CreateRegexPropertyUpdater(config.DependencyFilePath, "SystemNumericsVectorsVersion", "System.Numerics.Vectors");
+            yield return CreateRegexPropertyUpdater(config.DependencyFilePath, "SystemBuffersVersion", "System.Buffers");
             yield return CreateFileUpdater(config.CLIVersionFilePath, "Microsoft.DotNet.Cli.Utils");
 
             // Temporary workaround until CLI, Core-Setup, CoreFx are all in sync with the shared runtime.

src/System.Buffers.Experimental/System/Buffers/Native/NativeMemoryPool.cs

@@ -45,7 +45,7 @@ protected override void Dispose(bool disposing)
 
         public override OwnedMemory<byte> Rent(int numberOfBytes = DefaultSize)
         {
-            if (numberOfBytes == AnySize) numberOfBytes = DefaultSize;
+            if (numberOfBytes == -1) numberOfBytes = DefaultSize;
             if (numberOfBytes < 1 || numberOfBytes > MaxBufferSize) throw new ArgumentOutOfRangeException(nameof(numberOfBytes));
             if (numberOfBytes > _bufferSize) new NotSupportedException();
 

src/System.Buffers.Primitives/System.Buffers.Primitives.csproj

@@ -9,7 +9,7 @@
     <RootNamespace></RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="System.Buffers" Version="$(CoreFxStableVersion)" />
+    <PackageReference Include="System.Buffers" Version="$(SystemBuffersVersion)" />
     <PackageReference Include="System.Memory" Version="$(SystemMemoryVersion)" />
     <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="$(SystemCompilerServicesUnsafeVersion)" />
     <PackageReference Include="System.ValueTuple" Version="$(CoreFxStableVersion)" />

src/System.IO.Pipelines.Networking.Windows.RIO/Internal/Pool/MemoryPool.cs

@@ -73,9 +73,9 @@ public RioMemoryPool(Action<RioMemoryPoolSlab> allocationCallback = null, Action
             _slabDeallocationCallback = deallocationCallback;
         }
 
-        public override OwnedMemory<byte> Rent(int size = AnySize)
+        public override OwnedMemory<byte> Rent(int size = -1)
         {
-            if (size == AnySize) size = _blockLength;
+            if (size == -1) size = _blockLength;
             else if (size > _blockLength)
             {
                 RioPipelinesThrowHelper.ThrowArgumentOutOfRangeException_BufferRequestTooLarge(_blockLength);

src/System.IO.Pipelines/System/Buffers/MemoryPool.cs

@@ -63,9 +63,9 @@ public class MemoryPool : MemoryPool<byte>
         /// </summary>
         private bool _disposedValue = false; // To detect redundant calls
 
-        public override OwnedMemory<byte> Rent(int size = AnySize)
+        public override OwnedMemory<byte> Rent(int size = -1)
         {
-            if (size == AnySize) size = _blockLength;
+            if (size == -1) size = _blockLength;
             else if (size > _blockLength)
             {
                 PipelinesThrowHelper.ThrowArgumentOutOfRangeException_BufferRequestTooLarge(_blockLength);

src/System.IO.Pipelines/System/IO/Pipelines/PipeOptions.cs

@@ -19,7 +19,7 @@ public PipeOptions(
             long resumeWriterThreshold = 0,
             int minimumSegmentSize = 2048)
         {
-            Pool = pool ?? MemoryPool.Default;
+            Pool = pool ?? MemoryPool.Shared;
             ReaderScheduler = readerScheduler;
             WriterScheduler = writerScheduler;
             PauseWriterThreshold = pauseWriterThreshold;

src/System.Text.Json/System/Text/Json/JsonParser.cs

@@ -146,7 +146,7 @@ private enum JsonTokenType
         public JsonObject Parse(ReadOnlySpan<byte> utf8Json, MemoryPool<byte> pool = null)
         {
             _pool = pool;
-            if (_pool == null) _pool = MemoryPool<byte>.Default;
+            if (_pool == null) _pool = MemoryPool<byte>.Shared;
             _scratchManager = _pool.Rent(utf8Json.Length * 4);
             _scratchMemory = _scratchManager.Memory;
 

tests/System.Buffers.Primitives.Tests/BufferReferenceTests.cs

@@ -18,7 +18,7 @@ public void OwnedArrayReferenceTests()
         public void PooledBufferReferenceTests()
         {
             BufferReferenceTests.TestOwnedBuffer(() => {
-                return MemoryPool<byte>.Default.Rent(1000);
+                return MemoryPool<byte>.Shared.Rent(1000);
             });
         }
 

tools/dependencies.props

@@ -1,11 +1,12 @@
 <Project>
   <PropertyGroup>
-    <RuntimeFrameworkVersion>2.1.0-preview2-26124-07</RuntimeFrameworkVersion>
+    <RuntimeFrameworkVersion>2.1.0-preview2-26129-05</RuntimeFrameworkVersion>
     <CoreFxStableVersion>4.3.0</CoreFxStableVersion>
     <RoslynVersion>2.6.0-beta3-62316-02</RoslynVersion>
-    <SystemMemoryVersion>4.5.0-preview2-26125-06</SystemMemoryVersion>
-    <SystemCompilerServicesUnsafeVersion>4.5.0-preview2-26125-06</SystemCompilerServicesUnsafeVersion>
-    <SystemNumericsVectorsVersion>4.5.0-preview2-26125-06</SystemNumericsVectorsVersion>
+    <SystemMemoryVersion>4.5.0-preview2-26127-04</SystemMemoryVersion>
+    <SystemCompilerServicesUnsafeVersion>4.5.0-preview2-26127-04</SystemCompilerServicesUnsafeVersion>
+    <SystemNumericsVectorsVersion>4.5.0-preview2-26127-04</SystemNumericsVectorsVersion>
+    <SystemBuffersVersion>4.5.0-preview2-26127-04</SystemBuffersVersion>
     <LibuvVersion>1.9.1</LibuvVersion>
     <TestSdkVersion>15.0.0</TestSdkVersion>
     <XunitVersion>2.2.0</XunitVersion>