Rename SlabMemoryPool #31609

src/Servers/HttpSys/src/HttpSysListener.cs

@@ -20,20 +20,20 @@ internal partial class HttpSysListener : IDisposable
     {
         // Win8# 559317 fixed a bug in Http.sys's HttpReceiveClientCertificate method.
         // Without this fix IOCP callbacks were not being called although ERROR_IO_PENDING was
-        // returned from HttpReceiveClientCertificate when using the 
+        // returned from HttpReceiveClientCertificate when using the
         // FileCompletionNotificationModes.SkipCompletionPortOnSuccess flag.
         // This bug was only hit when the buffer passed into HttpReceiveClientCertificate
         // (1500 bytes initially) is too small for the certificate.
         // Due to this bug in downlevel operating systems the FileCompletionNotificationModes.SkipCompletionPortOnSuccess
         // flag is only used on Win8 and later.
         internal static readonly bool SkipIOCPCallbackOnSuccess = ComNetOS.IsWin8orLater;
 
-        // Mitigate potential DOS attacks by limiting the number of unknown headers we accept.  Numerous header names 
-        // with hash collisions will cause the server to consume excess CPU.  1000 headers limits CPU time to under 
+        // Mitigate potential DOS attacks by limiting the number of unknown headers we accept.  Numerous header names
+        // with hash collisions will cause the server to consume excess CPU.  1000 headers limits CPU time to under
         // 0.5 seconds per request.  Respond with a 400 Bad Request.
         private const int UnknownHeaderLimit = 1000;
 
-        internal MemoryPool<byte> MemoryPool { get; } = SlabMemoryPoolFactory.Create();
+        internal MemoryPool<byte> MemoryPool { get; } = PinnedBlockMemoryPoolFactory.Create();
 
         private volatile State _state; // m_State is set only within lock blocks, but often read outside locks.
 

src/Servers/IIS/IIS/src/Core/IISHttpServer.cs

@@ -23,7 +23,7 @@ internal class IISHttpServer : IServer
         private const string WebSocketVersionString = "WEBSOCKET_VERSION";
 
         private IISContextFactory? _iisContextFactory;
-        private readonly MemoryPool<byte> _memoryPool = new SlabMemoryPool();
+        private readonly MemoryPool<byte> _memoryPool = new PinnedBlockMemoryPool();
         private GCHandle _httpServerHandle;
         private readonly IHostApplicationLifetime _applicationLifetime;
         private readonly ILogger<IISHttpServer> _logger;

src/Servers/Kestrel/Core/test/ConcurrentPipeWriterTests.cs

@@ -16,8 +16,8 @@ public class ConcurrentPipeWriterTests
         [Fact]
         public async Task PassthroughIfAllFlushesAreAwaited()
         {
-            using (var slabPool = new SlabMemoryPool())
-            using (var diagnosticPool = new DiagnosticMemoryPool(slabPool))
+            using (var memoryPool = new PinnedBlockMemoryPool())
+            using (var diagnosticPool = new DiagnosticMemoryPool(memoryPool))
             {
                 var pipeWriterFlushTcsArray = new[] {
                     new TaskCompletionSource<FlushResult>(TaskCreationOptions.RunContinuationsAsynchronously),
@@ -79,8 +79,8 @@ public async Task PassthroughIfAllFlushesAreAwaited()
         [Fact]
         public async Task QueuesIfFlushIsNotAwaited()
         {
-            using (var slabPool = new SlabMemoryPool())
-            using (var diagnosticPool = new DiagnosticMemoryPool(slabPool))
+            using (var memoryPool = new PinnedBlockMemoryPool())
+            using (var diagnosticPool = new DiagnosticMemoryPool(memoryPool))
             {
                 var pipeWriterFlushTcsArray = new[] {
                     new TaskCompletionSource<FlushResult>(TaskCreationOptions.RunContinuationsAsynchronously),
@@ -177,8 +177,8 @@ public async Task QueuesIfFlushIsNotAwaited()
         [Fact]
         public async Task KeepsQueueIfInnerFlushFinishesBetweenGetMemoryAndAdvance()
         {
-            using (var slabPool = new SlabMemoryPool())
-            using (var diagnosticPool = new DiagnosticMemoryPool(slabPool))
+            using (var memoryPool = new PinnedBlockMemoryPool())
+            using (var diagnosticPool = new DiagnosticMemoryPool(memoryPool))
             {
                 var pipeWriterFlushTcsArray = new[] {
                     new TaskCompletionSource<FlushResult>(TaskCreationOptions.RunContinuationsAsynchronously),
@@ -229,7 +229,7 @@ public async Task KeepsQueueIfInnerFlushFinishesBetweenGetMemoryAndAdvance()
                 }
 
                 // Now that we flushed the ConcurrentPipeWriter again, the GetMemory() and Advance() calls are replayed.
-                // Make sure that MockPipeWriter.SlabMemoryPoolBlockSize matches SlabMemoryPool._blockSize or else
+                // Make sure that MockPipeWriter.PinnedBlockMemoryPoolBlockSize matches PinnedBlockMemoryPool._blockSize or else
                 // it might take more or less calls to the inner PipeWriter's GetMemory method to copy all the data.
                 Assert.Equal(3, mockPipeWriter.GetMemoryCallCount);
                 Assert.Equal(3, mockPipeWriter.AdvanceCallCount);
@@ -261,8 +261,8 @@ public async Task KeepsQueueIfInnerFlushFinishesBetweenGetMemoryAndAdvance()
         [Fact]
         public async Task CompleteFlushesQueuedBytes()
         {
-            using (var slabPool = new SlabMemoryPool())
-            using (var diagnosticPool = new DiagnosticMemoryPool(slabPool))
+            using (var memoryPool = new PinnedBlockMemoryPool())
+            using (var diagnosticPool = new DiagnosticMemoryPool(memoryPool))
             {
                 var pipeWriterFlushTcsArray = new[] {
                     new TaskCompletionSource<FlushResult>(TaskCreationOptions.RunContinuationsAsynchronously),
@@ -317,7 +317,7 @@ public async Task CompleteFlushesQueuedBytes()
                 await completeTask.DefaultTimeout();
 
                 // Now that we completed the ConcurrentPipeWriter, the GetMemory() and Advance() calls are replayed.
-                // Make sure that MockPipeWriter.SlabMemoryPoolBlockSize matches SlabMemoryPool._blockSize or else
+                // Make sure that MockPipeWriter.PinnedBlockMemoryPoolBlockSize matches PinnedBlockMemoryPool._blockSize or else
                 // it might take more or less calls to the inner PipeWriter's GetMemory method to copy all the data.
                 Assert.Equal(3, mockPipeWriter.GetMemoryCallCount);
                 Assert.Equal(3, mockPipeWriter.AdvanceCallCount);
@@ -329,8 +329,8 @@ public async Task CompleteFlushesQueuedBytes()
         [Fact]
         public async Task CancelPendingFlushInterruptsFlushLoop()
         {
-            using (var slabPool = new SlabMemoryPool())
-            using (var diagnosticPool = new DiagnosticMemoryPool(slabPool))
+            using (var memoryPool = new PinnedBlockMemoryPool())
+            using (var diagnosticPool = new DiagnosticMemoryPool(memoryPool))
             {
                 var pipeWriterFlushTcsArray = new[] {
                     new TaskCompletionSource<FlushResult>(TaskCreationOptions.RunContinuationsAsynchronously),
@@ -411,8 +411,8 @@ public async Task CancelPendingFlushInterruptsFlushLoop()
 
         private class MockPipeWriter : PipeWriter
         {
-            // It's important that this matches SlabMemoryPool._blockSize for all the tests to pass.
-            private const int SlabMemoryPoolBlockSize = 4096;
+            // It's important that this matches PinnedBlockMemoryPool._blockSize for all the tests to pass.
+            private const int PinnedBlockMemoryPoolBlockSize = 4096;
 
             private readonly TaskCompletionSource<FlushResult>[] _flushResults;
 
@@ -440,7 +440,7 @@ public override ValueTask<FlushResult> FlushAsync(CancellationToken cancellation
             public override Memory<byte> GetMemory(int sizeHint = 0)
             {
                 GetMemoryCallCount++;
-                return new Memory<byte>(new byte[sizeHint == 0 ? SlabMemoryPoolBlockSize : sizeHint]);
+                return new Memory<byte>(new byte[sizeHint == 0 ? PinnedBlockMemoryPoolBlockSize : sizeHint]);
             }
 
             public override Span<byte> GetSpan(int sizeHint = 0)

src/Servers/Kestrel/Core/test/DiagnosticMemoryPoolTests.cs

@@ -11,7 +11,7 @@ namespace Microsoft.Extensions.Internal.Test
 {
     public class DiagnosticMemoryPoolTests: MemoryPoolTests
     {
-        protected override MemoryPool<byte> CreatePool() => new DiagnosticMemoryPool(new SlabMemoryPool());
+        protected override MemoryPool<byte> CreatePool() => new DiagnosticMemoryPool(new PinnedBlockMemoryPool());
 
         [Fact]
         public void DoubleDisposeThrows()
@@ -176,7 +176,7 @@ public void GetMemoryTryGetArrayOfDisposedThrows()
         [Fact]
         public async Task DoesNotThrowWithLateReturns()
         {
-            var memoryPool = new DiagnosticMemoryPool(new SlabMemoryPool(), allowLateReturn: true);
+            var memoryPool = new DiagnosticMemoryPool(new PinnedBlockMemoryPool(), allowLateReturn: true);
             var block = memoryPool.Rent();
             memoryPool.Dispose();
             block.Dispose();
@@ -186,7 +186,7 @@ public async Task DoesNotThrowWithLateReturns()
         [Fact]
         public async Task ThrowsOnAccessToLateBlocks()
         {
-            var memoryPool = new DiagnosticMemoryPool(new SlabMemoryPool(), allowLateReturn: true);
+            var memoryPool = new DiagnosticMemoryPool(new PinnedBlockMemoryPool(), allowLateReturn: true);
             var block = memoryPool.Rent();
             memoryPool.Dispose();
 
@@ -202,7 +202,7 @@ public async Task ThrowsOnAccessToLateBlocks()
         [Fact]
         public void ExceptionsContainStackTraceWhenEnabled()
         {
-            var memoryPool = new DiagnosticMemoryPool(new SlabMemoryPool(), rentTracking: true);
+            var memoryPool = new DiagnosticMemoryPool(new PinnedBlockMemoryPool(), rentTracking: true);
             var block = memoryPool.Rent();
 
             ExpectDisposeException(memoryPool);

src/Servers/Kestrel/Core/test/Http1ConnectionTests.cs

@@ -42,7 +42,7 @@ public class Http1ConnectionTests : IDisposable
 
         public Http1ConnectionTests()
         {
-            _pipelineFactory = SlabMemoryPoolFactory.Create();
+            _pipelineFactory = PinnedBlockMemoryPoolFactory.Create();
             var options = new PipeOptions(_pipelineFactory, readerScheduler: PipeScheduler.Inline, writerScheduler: PipeScheduler.Inline, useSynchronizationContext: false);
             var pair = DuplexPipe.CreateConnectionPair(options, options);
 

src/Servers/Kestrel/Core/test/HttpResponseHeadersTests.cs

@@ -23,7 +23,7 @@ public class HttpResponseHeadersTests
         [Fact]
         public void InitialDictionaryIsEmpty()
         {
-            using (var memoryPool = SlabMemoryPoolFactory.Create())
+            using (var memoryPool = PinnedBlockMemoryPoolFactory.Create())
             {
                 var options = new PipeOptions(memoryPool, readerScheduler: PipeScheduler.Inline, writerScheduler: PipeScheduler.Inline, useSynchronizationContext: false);
                 var pair = DuplexPipe.CreateConnectionPair(options, options);

src/Servers/Kestrel/Core/test/OutputProducerTests.cs

@@ -21,7 +21,7 @@ public class OutputProducerTests : IDisposable
 
         public OutputProducerTests()
         {
-            _memoryPool = SlabMemoryPoolFactory.Create();
+            _memoryPool = PinnedBlockMemoryPoolFactory.Create();
         }
 
         public void Dispose()

src/Servers/Kestrel/Core/test/SlabMemoryPoolTests.cs → src/Servers/Kestrel/Core/test/PinnedBlockMemoryPoolTests.cs

@@ -6,9 +6,9 @@
 
 namespace Microsoft.Extensions.Internal.Test
 {
-    public  class SlabMemoryPoolTests: MemoryPoolTests
+    public  class PinnedBlockMemoryPoolTests: MemoryPoolTests
     {
-        protected override MemoryPool<byte> CreatePool() => new SlabMemoryPool();
+        protected override MemoryPool<byte> CreatePool() => new PinnedBlockMemoryPool();
 
         [Fact]
         public void DoubleDisposeWorks()

src/Servers/Kestrel/Core/test/PipelineExtensionTests.cs

@@ -17,7 +17,7 @@ public class PipelineExtensionTests : IDisposable
         private const int _ulongMaxValueLength = 20;
 
         private readonly Pipe _pipe;
-        private readonly MemoryPool<byte> _memoryPool = SlabMemoryPoolFactory.Create();
+        private readonly MemoryPool<byte> _memoryPool = PinnedBlockMemoryPoolFactory.Create();
 
         public PipelineExtensionTests()
         {

src/Servers/Kestrel/Core/test/StartLineTests.cs

@@ -518,7 +518,7 @@ public void AuthorityForms(string rawTarget, string path, string query)
 
         public StartLineTests()
         {
-            MemoryPool = SlabMemoryPoolFactory.Create();
+            MemoryPool = PinnedBlockMemoryPoolFactory.Create();
             var options = new PipeOptions(MemoryPool, readerScheduler: PipeScheduler.Inline, writerScheduler: PipeScheduler.Inline, useSynchronizationContext: false);
             var pair = DuplexPipe.CreateConnectionPair(options, options);
             Transport = pair.Transport;

src/Servers/Kestrel/Core/test/TestHelpers/TestInput.cs

@@ -23,7 +23,7 @@ class TestInput : IDisposable
 
         public TestInput(IKestrelTrace log = null, ITimeoutControl timeoutControl = null)
         {
-            _memoryPool = SlabMemoryPoolFactory.Create();
+            _memoryPool = PinnedBlockMemoryPoolFactory.Create();
             var options = new PipeOptions(pool: _memoryPool, readerScheduler: PipeScheduler.Inline, writerScheduler: PipeScheduler.Inline, useSynchronizationContext: false);
             var pair = DuplexPipe.CreateConnectionPair(options, options);
             Transport = pair.Transport;

src/Servers/Kestrel/Transport.Libuv/src/Internal/LibuvConnection.cs

@@ -16,7 +16,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv.Internal
 {
     internal partial class LibuvConnection : TransportConnection
     {
-        private static readonly int MinAllocBufferSize = SlabMemoryPool.BlockSize / 2;
+        private static readonly int MinAllocBufferSize = PinnedBlockMemoryPool.BlockSize / 2;
 
         private static readonly Action<UvStreamHandle, int, object> _readCallback =
             (handle, status, state) => ReadCallback(handle, status, state);

src/Servers/Kestrel/Transport.Libuv/src/LibuvTransportOptions.cs

@@ -45,7 +45,7 @@ public class LibuvTransportOptions
         [Obsolete("The libuv transport is obsolete and will be removed in a future release. See https://aka.ms/libuvtransport for details.", error: false)] // Remove after .NET 6.
         public long? MaxWriteBufferSize { get; set; } = 64 * 1024;
 
-        internal Func<MemoryPool<byte>> MemoryPoolFactory { get; set; } = System.Buffers.SlabMemoryPoolFactory.Create;
+        internal Func<MemoryPool<byte>> MemoryPoolFactory { get; set; } = System.Buffers.PinnedBlockMemoryPoolFactory.Create;
 
         private static int ProcessorThreadCount
         {

src/Servers/Kestrel/Transport.Libuv/test/LibuvOutputConsumerTests.cs

@@ -41,7 +41,7 @@ public class LibuvOutputConsumerTests : IDisposable
 
         public LibuvOutputConsumerTests()
         {
-            _memoryPool = SlabMemoryPoolFactory.Create();
+            _memoryPool = PinnedBlockMemoryPoolFactory.Create();
             _mockLibuv = new MockLibuv();
 
             var context = new TestLibuvTransportContext();

src/Servers/Kestrel/Transport.Quic/src/QuicTransportOptions.cs

@@ -42,7 +42,7 @@ public class QuicTransportOptions
         /// </summary>
         public long? MaxWriteBufferSize { get; set; } = 64 * 1024;
 
-        internal Func<MemoryPool<byte>> MemoryPoolFactory { get; set; } = System.Buffers.SlabMemoryPoolFactory.Create;
+        internal Func<MemoryPool<byte>> MemoryPoolFactory { get; set; } = System.Buffers.PinnedBlockMemoryPoolFactory.Create;
 
     }
 }

src/Servers/Kestrel/Transport.Sockets/src/Internal/SocketConnection.cs

@@ -15,7 +15,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.Internal
 {
     internal sealed partial class SocketConnection : TransportConnection
     {
-        private static readonly int MinAllocBufferSize = SlabMemoryPool.BlockSize / 2;
+        private static readonly int MinAllocBufferSize = PinnedBlockMemoryPool.BlockSize / 2;
 
         private readonly Socket _socket;
         private readonly ISocketsTrace _trace;

src/Servers/Kestrel/Transport.Sockets/src/SocketTransportOptions.cs

@@ -65,6 +65,6 @@ public class SocketTransportOptions
         /// </remarks>
         public bool UnsafePreferInlineScheduling { get; set; }
 
-        internal Func<MemoryPool<byte>> MemoryPoolFactory { get; set; } = System.Buffers.SlabMemoryPoolFactory.Create;
+        internal Func<MemoryPool<byte>> MemoryPoolFactory { get; set; } = System.Buffers.PinnedBlockMemoryPoolFactory.Create;
     }
 }

src/Servers/Kestrel/perf/Microbenchmarks/ChunkWriterBenchmark.cs

@@ -20,7 +20,7 @@ public class ChunkWriterBenchmark
         [GlobalSetup]
         public void Setup()
         {
-            _memoryPool = SlabMemoryPoolFactory.Create();
+            _memoryPool = PinnedBlockMemoryPoolFactory.Create();
             var pipe = new Pipe(new PipeOptions(_memoryPool));
             _reader = pipe.Reader;
             _writer = pipe.Writer;

src/Servers/Kestrel/perf/Microbenchmarks/Http1ConnectionBenchmark.cs

@@ -29,7 +29,7 @@ public class Http1ConnectionBenchmark
         [GlobalSetup]
         public void Setup()
         {
-            var memoryPool = SlabMemoryPoolFactory.Create();
+            var memoryPool = PinnedBlockMemoryPoolFactory.Create();
             var options = new PipeOptions(memoryPool, readerScheduler: PipeScheduler.Inline, writerScheduler: PipeScheduler.Inline, useSynchronizationContext: false);
             var pair = DuplexPipe.CreateConnectionPair(options, options);
 

src/Servers/Kestrel/perf/Microbenchmarks/Http1ConnectionParsingOverheadBenchmark.cs

@@ -23,7 +23,7 @@ public class Http1ConnectionParsingOverheadBenchmark
         [IterationSetup]
         public void Setup()
         {
-            var memoryPool = SlabMemoryPoolFactory.Create();
+            var memoryPool = PinnedBlockMemoryPoolFactory.Create();
             var options = new PipeOptions(memoryPool, readerScheduler: PipeScheduler.Inline, writerScheduler: PipeScheduler.Inline, useSynchronizationContext: false);
             var pair = DuplexPipe.CreateConnectionPair(options, options);
 

src/Servers/Kestrel/perf/Microbenchmarks/Http1LargeWritingBenchmark.cs

@@ -28,7 +28,7 @@ public class Http1LargeWritingBenchmark
         [GlobalSetup]
         public void GlobalSetup()
         {
-            _memoryPool = SlabMemoryPoolFactory.Create();
+            _memoryPool = PinnedBlockMemoryPoolFactory.Create();
             _http1Connection = MakeHttp1Connection();
             _consumeResponseBodyTask = ConsumeResponseBody();
         }

src/Servers/Kestrel/perf/Microbenchmarks/Http1ReadingBenchmark.cs

@@ -35,7 +35,7 @@ public class Http1ReadingBenchmark
         [GlobalSetup]
         public void GlobalSetup()
         {
-            _memoryPool = SlabMemoryPoolFactory.Create();
+            _memoryPool = PinnedBlockMemoryPoolFactory.Create();
             _http1Connection = MakeHttp1Connection();
         }
 

src/Servers/Kestrel/perf/Microbenchmarks/Http1WritingBenchmark.cs

@@ -35,7 +35,7 @@ public class Http1WritingBenchmark
         [GlobalSetup]
         public void GlobalSetup()
         {
-            _memoryPool = SlabMemoryPoolFactory.Create();
+            _memoryPool = PinnedBlockMemoryPoolFactory.Create();
             _http1Connection = MakeHttp1Connection();
             _consumeResponseBodyTask = ConsumeResponseBody();
         }

src/Servers/Kestrel/perf/Microbenchmarks/Http2ConnectionBenchmarkBase.cs

@@ -42,7 +42,7 @@ public abstract class Http2ConnectionBenchmarkBase
 
         public virtual void GlobalSetup()
         {
-            _memoryPool = SlabMemoryPoolFactory.Create();
+            _memoryPool = PinnedBlockMemoryPoolFactory.Create();
             _httpFrame = new Http2Frame();
 
             var options = new PipeOptions(_memoryPool, readerScheduler: PipeScheduler.Inline, writerScheduler: PipeScheduler.Inline, useSynchronizationContext: false);

src/Servers/Kestrel/perf/Microbenchmarks/Http2FrameWriterBenchmark.cs

@@ -24,7 +24,7 @@ public class Http2FrameWriterBenchmark
         [GlobalSetup]
         public void GlobalSetup()
         {
-            _memoryPool = SlabMemoryPoolFactory.Create();
+            _memoryPool = PinnedBlockMemoryPoolFactory.Create();
 
             var options = new PipeOptions(_memoryPool, readerScheduler: PipeScheduler.Inline, writerScheduler: PipeScheduler.Inline, useSynchronizationContext: false);
             _pipe = new Pipe(options);

src/Servers/Kestrel/perf/Microbenchmarks/HttpProtocolFeatureCollection.cs

@@ -226,7 +226,7 @@ public IHttpNotFoundFeature Get_IHttpNotFoundFeature()
 
         public HttpProtocolFeatureCollection()
         {
-            var memoryPool = SlabMemoryPoolFactory.Create();
+            var memoryPool = PinnedBlockMemoryPoolFactory.Create();
             var options = new PipeOptions(memoryPool, readerScheduler: PipeScheduler.Inline, writerScheduler: PipeScheduler.Inline, useSynchronizationContext: false);
             var pair = DuplexPipe.CreateConnectionPair(options, options);
 

src/Servers/Kestrel/perf/Microbenchmarks/PipeThroughputBenchmark.cs

@@ -19,7 +19,7 @@ public class PipeThroughputBenchmark
         [IterationSetup]
         public void Setup()
         {
-            _memoryPool = SlabMemoryPoolFactory.Create();
+            _memoryPool = PinnedBlockMemoryPoolFactory.Create();
             _pipe = new Pipe(new PipeOptions(_memoryPool));
         }