Imported Upstream version 5.0.0.42

Former-commit-id: fd56571888259555122d8a0f58c68838229cea2b

external/corefx/src/System.Diagnostics.PerformanceCounter/dir.props

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+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\dir.props" />
+  <PropertyGroup>
+    <AssemblyVersion>4.0.0.0</AssemblyVersion>
+  </PropertyGroup>
+</Project>
+

external/corefx/src/System.Diagnostics.PerformanceCounter/ref/Configurations.props

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <BuildConfigurations>
+      netcoreapp;
+    </BuildConfigurations>
+  </PropertyGroup>
+</Project>

external/corefx/src/System.Diagnostics.PerformanceCounter/ref/System.Diagnostics.PerformanceCounter.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.
+// ------------------------------------------------------------------------------
+// Changes to this file must follow the http://aka.ms/api-review process.
+// ------------------------------------------------------------------------------
+
+
+namespace System.Diagnostics
+{
+    [System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)]
+    public partial struct CounterSample
+    {
+        public static System.Diagnostics.CounterSample Empty;
+        public CounterSample(long rawValue, long baseValue, long counterFrequency, long systemFrequency, long timeStamp, long timeStamp100nSec, System.Diagnostics.PerformanceCounterType counterType) { throw null; }
+        public CounterSample(long rawValue, long baseValue, long counterFrequency, long systemFrequency, long timeStamp, long timeStamp100nSec, System.Diagnostics.PerformanceCounterType counterType, long counterTimeStamp) { throw null; }
+        public long BaseValue { get { throw null; } }
+        public long CounterFrequency { get { throw null; } }
+        public long CounterTimeStamp { get { throw null; } }
+        public System.Diagnostics.PerformanceCounterType CounterType { get { throw null; } }
+        public long RawValue { get { throw null; } }
+        public long SystemFrequency { get { throw null; } }
+        public long TimeStamp { get { throw null; } }
+        public long TimeStamp100nSec { get { throw null; } }
+        public static float Calculate(System.Diagnostics.CounterSample counterSample) { throw null; }
+        public static float Calculate(System.Diagnostics.CounterSample counterSample, System.Diagnostics.CounterSample nextCounterSample) { throw null; }
+        public bool Equals(System.Diagnostics.CounterSample sample) { throw null; }
+        public override bool Equals(object o) { throw null; }
+        public override int GetHashCode() { throw null; }
+        public static bool operator ==(System.Diagnostics.CounterSample a, System.Diagnostics.CounterSample b) { throw null; }
+        public static bool operator !=(System.Diagnostics.CounterSample a, System.Diagnostics.CounterSample b) { throw null; }
+    }
+    public sealed partial class PerformanceCounter
+    {
+        [System.ObsoleteAttribute("This field has been deprecated and is not used.  Use machine.config or an application configuration file to set the size of the PerformanceCounter file mapping.")]
+        public static int DefaultFileMappingSize;
+        public PerformanceCounter() { }
+        public PerformanceCounter(string categoryName, string counterName) { }
+        public PerformanceCounter(string categoryName, string counterName, bool readOnly) { }
+        public PerformanceCounter(string categoryName, string counterName, string instanceName) { }
+        public PerformanceCounter(string categoryName, string counterName, string instanceName, bool readOnly) { }
+        public PerformanceCounter(string categoryName, string counterName, string instanceName, string machineName) { }
+        [System.ComponentModel.DefaultValueAttribute("")]
+        public string CategoryName { get { throw null; } set { } }
+        public string CounterHelp { get { throw null; } }
+        [System.ComponentModel.DefaultValueAttribute("")]
+        public string CounterName { get { throw null; } set { } }
+        public System.Diagnostics.PerformanceCounterType CounterType { get { throw null; } }
+        [System.ComponentModel.DefaultValueAttribute((System.Diagnostics.PerformanceCounterInstanceLifetime)(0))]
+        public System.Diagnostics.PerformanceCounterInstanceLifetime InstanceLifetime { get { throw null; } set { } }
+        [System.ComponentModel.DefaultValueAttribute("")]
+        public string InstanceName { get { throw null; } set { } }
+        [System.ComponentModel.DefaultValueAttribute(".")]
+        public string MachineName { get { throw null; } set { } }
+        public long RawValue { get { throw null; } set { } }
+        [System.ComponentModel.DefaultValueAttribute(true)]
+        public bool ReadOnly { get { throw null; } set { } }
+        public void BeginInit() { }
+        public void Close() { }
+        public void EndInit() { }
+        public long Increment() { throw null; }
+        public long IncrementBy(long value) { throw null; }
+        public System.Diagnostics.CounterSample NextSample() { throw null; }
+        public float NextValue() { throw null; }
+        public void RemoveInstance() { }
+    }
+    public enum PerformanceCounterInstanceLifetime
+    {
+        Global = 0,
+        Process = 1,
+    }
+    public enum PerformanceCounterType
+    {
+        AverageBase = 1073939458,
+        AverageCount64 = 1073874176,
+        AverageTimer32 = 805438464,
+        CounterDelta32 = 4195328,
+        CounterDelta64 = 4195584,
+        CounterMultiBase = 1107494144,
+        CounterMultiTimer = 574686464,
+        CounterMultiTimer100Ns = 575735040,
+        CounterMultiTimer100NsInverse = 592512256,
+        CounterMultiTimerInverse = 591463680,
+        CounterTimer = 541132032,
+        CounterTimerInverse = 557909248,
+        CountPerTimeInterval32 = 4523008,
+        CountPerTimeInterval64 = 4523264,
+        ElapsedTime = 807666944,
+        NumberOfItems32 = 65536,
+        NumberOfItems64 = 65792,
+        NumberOfItemsHEX32 = 0,
+        NumberOfItemsHEX64 = 256,
+        RateOfCountsPerSecond32 = 272696320,
+        RateOfCountsPerSecond64 = 272696576,
+        RawBase = 1073939459,
+        RawFraction = 537003008,
+        SampleBase = 1073939457,
+        SampleCounter = 4260864,
+        SampleFraction = 549585920,
+        Timer100Ns = 542180608,
+        Timer100NsInverse = 558957824,
+    }
+}

external/corefx/src/System.Diagnostics.PerformanceCounter/ref/System.Diagnostics.PerformanceCounter.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netcoreapp-Debug|AnyCPU'" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netcoreapp-Release|AnyCPU'" />
+  <ItemGroup>
+    <Compile Include="System.Diagnostics.PerformanceCounter.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\System.Runtime\ref\System.Runtime.csproj" />
+  </ItemGroup>
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
+</Project>