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var flag = 0;
var stopwatch = new Stopwatch();

ParameterizedThreadStart task = p => {
	SpinWait.SpinUntil(() => Interlocked.CompareExchange(ref flag, 1, 0) == 0);
	Console.WriteLine($"[{stopwatch.Elapsed}] Thread {p} has entered lock.");
	Thread.Sleep(2000);
	Console.WriteLine($"[{stopwatch.Elapsed}] Thread {p} is exiting lock.");
	Interlocked.Exchange(ref flag, 0);
};

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namespace AspNetCoreApp
{
    public class AdminSettings
    {
        public AdminSettings() { }

        // copy constructor
        public AdminSettings(AdminSettings other)
        {
            AdminEmail = other.AdminEmail;

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using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Console;

namespace test
{
    public abstract class EntityBase
    {
        public int Id { get; set; }
        public byte[] RowVersion { get; set; }

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using System;
using System.Collections.Generic;
using Microsoft.Extensions.Configuration;

namespace Sample
{
    class Program
    {
        static readonly IConfiguration Configuration = new ConfigurationBuilder()
            .AddJsonFile("appsettings.json", optional: false, reloadOnChange: false)

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using System;
using System.Threading;
using System.Threading.Tasks;

namespace netcore
{
    class Program
    {
        static async Task TestAsync()
        {

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using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using LinqToDB;
using LinqToDB.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;

namespace ConsoleApp1

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<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp3.1</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Karambolo.Extensions.Logging.File" Version="3.1.1" />
    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.3" />

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using System;
using System.Collections.Generic;
using System.Linq;
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Jobs;
using BenchmarkDotNet.Running;

namespace MyBenchmarks
{
    [SimpleJob(RuntimeMoniker.NetCoreApp31)]

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public class ImprovedAstVisitor : AstVisitor
{
    protected virtual bool RewriteArrowFunctions => true;

    protected override void VisitArrayExpression(ArrayExpression arrayExpression)
    {
        for (int i = 0, n = arrayExpression.Elements.Count; i < n; i++)
        {
            Expression element = arrayExpression.Elements[i];
            if (element != null)