Commit a snapshot of corefxlab source code to ensure patch builds are reproducible

Author: Nate McMaster

build/dependencies.props

@@ -8,7 +8,6 @@
     <MicrosoftAspNetCoreHttpAbstractionsPackageVersion>2.0.1-rtm-105</MicrosoftAspNetCoreHttpAbstractionsPackageVersion>
     <MicrosoftAspNetCoreHttpFeaturesPackageVersion>2.0.1-rtm-105</MicrosoftAspNetCoreHttpFeaturesPackageVersion>
     <MicrosoftAspNetCoreHttpPackageVersion>2.0.1-rtm-105</MicrosoftAspNetCoreHttpPackageVersion>
-    <MicrosoftAspNetCoreInternalCoreFxLabSourcesPackageVersion>2.0.0-rtm-21470</MicrosoftAspNetCoreInternalCoreFxLabSourcesPackageVersion>
     <MicrosoftAspNetCoreTestingPackageVersion>2.0.0</MicrosoftAspNetCoreTestingPackageVersion>
     <MicrosoftAspNetCoreWebUtilitiesPackageVersion>2.0.1-rtm-105</MicrosoftAspNetCoreWebUtilitiesPackageVersion>
     <MicrosoftExtensionsLoggingAbstractionsPackageVersion>2.0.0</MicrosoftExtensionsLoggingAbstractionsPackageVersion>

shared/corefxlab/SR.cs

@@ -0,0 +1,114 @@
+namespace System
+{
+    // This is generated as part of corefx build process
+    internal static class SR
+    {
+        internal static string ArrayTypeMustBeExactMatch
+        {
+            get
+            {
+                return System.SR.GetResourceString("ArrayTypeMustBeExactMatch", null);
+            }
+        }
+
+        internal static string CannotCallEqualsOnSpan
+        {
+            get
+            {
+                return System.SR.GetResourceString("CannotCallEqualsOnSpan", null);
+            }
+        }
+
+        internal static string CannotCallGetHashCodeOnSpan
+        {
+            get
+            {
+                return System.SR.GetResourceString("CannotCallGetHashCodeOnSpan", null);
+            }
+        }
+
+        internal static string Argument_InvalidTypeWithPointersNotSupported
+        {
+            get
+            {
+                return System.SR.GetResourceString("Argument_InvalidTypeWithPointersNotSupported", null);
+            }
+        }
+
+        internal static string Argument_DestinationTooShort
+        {
+            get
+            {
+                return System.SR.GetResourceString("Argument_DestinationTooShort", null);
+            }
+        }
+
+        [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
+        private static bool UsingResourceKeys()
+        {
+            return false;
+        }
+
+        internal static string GetResourceString(string resourceKey, string defaultString)
+        {
+            return resourceKey;
+        }
+
+        internal static string Format(string resourceFormat, params object[] args)
+        {
+             return resourceFormat + string.Join(", ", args);
+        }
+
+        internal static string Format(string resourceFormat, object p1)
+        {
+            if (System.SR.UsingResourceKeys())
+            {
+                return string.Join(", ", new object[]
+                {
+                    resourceFormat,
+                    p1
+                });
+            }
+            return string.Format(resourceFormat, p1);
+        }
+
+        internal static string Format(string resourceFormat, object p1, object p2)
+        {
+            if (System.SR.UsingResourceKeys())
+            {
+                return string.Join(", ", new object[]
+                {
+                    resourceFormat,
+                    p1,
+                    p2
+                });
+            }
+            return string.Format(resourceFormat, p1, p2);
+        }
+
+        internal static string Format(string resourceFormat, object p1, object p2, object p3)
+        {
+            if (System.SR.UsingResourceKeys())
+            {
+                return string.Join(", ", new object[]
+                {
+                    resourceFormat,
+                    p1,
+                    p2,
+                    p3
+                });
+            }
+            return string.Format(resourceFormat, p1, p2, p3);
+        }
+    }
+}
+
+namespace Microsoft.AspNetCore.Server.Kestrel.Internal.System.Buffers.Internal
+{
+    // We don't want to pull System.Buffers required by ManagedBufferPool implemenation
+    // and BufferPool depends on ManagedBufferPool.Shared
+    internal class ManagedBufferPool
+    {
+        public static BufferPool Shared { get; } = null;
+    }
+}

shared/corefxlab/System.Binary/System/Binary/BufferReader.cs

@@ -0,0 +1,115 @@
+// This file was processed with Internalizer tool and should not be edited manually
+
+using System;
+using System.Buffers;
+using System.Runtime;
+
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using Microsoft.AspNetCore.Server.Kestrel.Internal.System.Runtime;
+using System.Runtime.CompilerServices;
+
+namespace Microsoft.AspNetCore.Server.Kestrel.Internal.System.Binary
+{
+    /// <summary>
+    /// Reads bytes as primitives with specific endianness
+    /// </summary>
+    /// <remarks>
+    /// For native formats, SpanExtensions.Read<T> should be used.
+    /// Use these helpers when you need to read specific endinanness.
+    /// </remarks>
+    public static class BufferReader
+    {
+        /// <summary>
+        /// Reads a structure of type <typeparamref name="T"/> out of a span of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T ReadBigEndian<[Primitive]T>(this ReadOnlySpan<byte> span) where T : struct
+            => BitConverter.IsLittleEndian ? UnsafeUtilities.Reverse(span.Read<T>()) : span.Read<T>();
+
+        /// <summary>
+        /// Reads a structure of type <typeparamref name="T"/> out of a span of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T ReadLittleEndian<[Primitive]T>(this ReadOnlySpan<byte> span) where T : struct
+            => BitConverter.IsLittleEndian ? span.Read<T>() : UnsafeUtilities.Reverse(span.Read<T>());
+
+        /// <summary>
+        /// Reads a structure of type <typeparamref name="T"/> out of a span of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T ReadBigEndian<[Primitive]T>(this Span<byte> span) where T : struct
+            => BitConverter.IsLittleEndian ? UnsafeUtilities.Reverse(span.Read<T>()) : span.Read<T>();
+
+        /// <summary>
+        /// Reads a structure of type <typeparamref name="T"/> out of a span of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T ReadLittleEndian<[Primitive]T>(this Span<byte> span) where T : struct
+            => BitConverter.IsLittleEndian ? span.Read<T>() : UnsafeUtilities.Reverse(span.Read<T>());
+
+        /// <summary>
+        /// Reads a structure of type T out of a slice of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T Read<[Primitive]T>(this Span<byte> slice)
+            where T : struct
+        {
+            RequiresInInclusiveRange(Unsafe.SizeOf<T>(), (uint)slice.Length);
+            return Unsafe.ReadUnaligned<T>(ref slice.DangerousGetPinnableReference());
+        }
+
+        /// <summary>
+        /// Reads a structure of type T out of a slice of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T Read<[Primitive]T>(this ReadOnlySpan<byte> slice)
+            where T : struct
+        {
+            RequiresInInclusiveRange(Unsafe.SizeOf<T>(), (uint)slice.Length);
+            return Unsafe.ReadUnaligned<T>(ref slice.DangerousGetPinnableReference());
+        }
+
+        /// <summary>
+        /// Reads a structure of type T out of a slice of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool TryRead<[Primitive]T>(this ReadOnlySpan<byte> slice, out T value)
+            where T : struct
+        {
+            if (Unsafe.SizeOf<T>() > (uint)slice.Length)
+            {
+                value = default(T);
+                return false;
+            }
+            value = Unsafe.ReadUnaligned<T>(ref slice.DangerousGetPinnableReference());
+            return true;
+        }
+
+        /// <summary>
+        /// Reads a structure of type T out of a slice of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool TryRead<[Primitive]T>(this Span<byte> slice, out T value)
+            where T : struct
+        {
+            if (Unsafe.SizeOf<T>() > (uint)slice.Length)
+            {
+                value = default(T);
+                return false;
+            }
+            value = Unsafe.ReadUnaligned<T>(ref slice.DangerousGetPinnableReference());
+            return true;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void RequiresInInclusiveRange(int start, uint length)
+        {
+            if ((uint)start > length)
+            {
+                throw new ArgumentOutOfRangeException();
+            }
+        }
+    }
+}

shared/corefxlab/System.Binary/System/Binary/BufferWriter.cs

@@ -0,0 +1,68 @@
+// This file was processed with Internalizer tool and should not be edited manually
+
+using System;
+using System.Buffers;
+using System.Runtime;
+
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using Microsoft.AspNetCore.Server.Kestrel.Internal.System.Runtime;
+using System.Runtime.CompilerServices;
+
+namespace Microsoft.AspNetCore.Server.Kestrel.Internal.System.Binary
+{
+    /// <summary>
+    /// Writes endian-specific primitives into spans.
+    /// </summary>
+    /// <remarks>
+    /// Use these helpers when you need to write specific endinaness.
+    /// </remarks>
+    public static class BufferWriter
+    {
+        /// <summary>
+        /// Writes a structure of type T to a span of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void WriteBigEndian<[Primitive]T>(this Span<byte> span, T value) where T : struct
+            => span.Write(BitConverter.IsLittleEndian ? UnsafeUtilities.Reverse(value) : value);
+
+        /// <summary>
+        /// Writes a structure of type T to a span of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void WriteLittleEndian<[Primitive]T>(this Span<byte> span, T value) where T : struct
+            => span.Write(BitConverter.IsLittleEndian ? value : UnsafeUtilities.Reverse(value));
+
+
+
+        /// <summary>
+        /// Writes a structure of type T into a slice of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void Write<[Primitive]T>(this Span<byte> slice, T value)
+            where T : struct
+        {
+            if ((uint)Unsafe.SizeOf<T>() > (uint)slice.Length)
+            {
+                throw new ArgumentOutOfRangeException();
+            }
+            Unsafe.WriteUnaligned<T>(ref slice.DangerousGetPinnableReference(), value);
+        }
+
+        /// <summary>
+        /// Writes a structure of type T into a slice of bytes.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool TryWrite<[Primitive]T>(this Span<byte> slice, T value)
+            where T : struct
+        {
+            if (Unsafe.SizeOf<T>() > (uint)slice.Length)
+            {
+                return false;
+            }
+            Unsafe.WriteUnaligned<T>(ref slice.DangerousGetPinnableReference(), value);
+            return true;
+        }
+    }
+}

shared/corefxlab/System.Binary/System/Binary/UnsafeUtilities.cs

@@ -0,0 +1,74 @@
+// This file was processed with Internalizer tool and should not be edited manually
+
+using System;
+using System.Buffers;
+using System.Runtime;
+
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using System.Runtime.CompilerServices;
+
+namespace Microsoft.AspNetCore.Server.Kestrel.Internal.System.Runtime
+{
+    /// <summary>
+    /// A collection of unsafe helper methods that we cannot implement in C#.
+    /// NOTE: these can be used for VeryBadThings(tm), so tread with care...
+    /// </summary>
+    internal static class UnsafeUtilities
+    {
+        /// <summary>
+        /// Reverses a primitive value - performs an endianness swap
+        /// </summary> 
+        public static unsafe T Reverse<[Primitive]T>(T value) where T : struct
+        {
+            // note: relying on JIT goodness here!
+            if (typeof(T) == typeof(byte) || typeof(T) == typeof(sbyte)) {
+                return value;
+            }
+            else if (typeof(T) == typeof(ushort) || typeof(T) == typeof(short)) {
+                ushort val = 0;
+                Unsafe.Write(&val, value);
+                val = (ushort)((val >> 8) | (val << 8));
+                return Unsafe.Read<T>(&val);
+            }
+            else if (typeof(T) == typeof(uint) || typeof(T) == typeof(int)
+                || typeof(T) == typeof(float)) {
+                uint val = 0;
+                Unsafe.Write(&val, value);
+                val = (val << 24)
+                    | ((val & 0xFF00) << 8)
+                    | ((val & 0xFF0000) >> 8)
+                    | (val >> 24);
+                return Unsafe.Read<T>(&val);
+            }
+            else if (typeof(T) == typeof(ulong) || typeof(T) == typeof(long)
+                || typeof(T) == typeof(double)) {
+                ulong val = 0;
+                Unsafe.Write(&val, value);
+                val = (val << 56)
+                    | ((val & 0xFF00) << 40)
+                    | ((val & 0xFF0000) << 24)
+                    | ((val & 0xFF000000) << 8)
+                    | ((val & 0xFF00000000) >> 8)
+                    | ((val & 0xFF0000000000) >> 24)
+                    | ((val & 0xFF000000000000) >> 40)
+                    | (val >> 56);
+                return Unsafe.Read<T>(&val);
+            }
+            else {
+                // default implementation
+                int len = Unsafe.SizeOf<T>();
+                var val = stackalloc byte[len];
+                Unsafe.Write(val, value);
+                int to = len >> 1, dest = len - 1;
+                for (int i = 0; i < to; i++) {
+                    var tmp = val[i];
+                    val[i] = val[dest];
+                    val[dest--] = tmp;
+                }
+                return Unsafe.Read<T>(val);
+            }
+        }
+    }
+}