v4.0.0 (#1357)

Source/MQTTnet.Benchmarks/Configurations/AllowNonOptimized.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.
+
+using BenchmarkDotNet.Jobs;
+using BenchmarkDotNet.Validators;
+
+namespace MQTTnet.Benchmarks.Configurations
+{
+    /// <summary>
+    /// this options may be used to run benchmarks in debugmode and attach a performance profiler
+    /// https://benchmarkdotnet.org/Configs/Configs.htm
+    /// </summary>
+    public class AllowNonOptimized : BaseConfig
+    {
+        public AllowNonOptimized()
+        {
+            AddValidator(JitOptimizationsValidator.DontFailOnError); // ALLOW NON-OPTIMIZED DLLS
+            AddJob(Job.InProcess);
+        }
+    }
+}

Source/MQTTnet.Benchmarks/Configurations/BaseConfig.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.
+
+using BenchmarkDotNet.Configs;
+using System.Linq;
+
+namespace MQTTnet.Benchmarks.Configurations
+{
+    public class BaseConfig : ManualConfig
+    {
+        public BaseConfig()
+        {
+            AddLogger(DefaultConfig.Instance.GetLoggers().ToArray()); // manual config has no loggers by default
+            AddExporter(DefaultConfig.Instance.GetExporters().ToArray()); // manual config has no exporters by default
+            AddColumnProvider(DefaultConfig.Instance.GetColumnProviders().ToArray()); // manual config has no columns by default
+        }
+    }
+}

Source/MQTTnet.Benchmarks/Configurations/RuntimeCompareConfig.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.
+
+using BenchmarkDotNet.Environments;
+using BenchmarkDotNet.Jobs;
+using BenchmarkDotNet.Toolchains.CsProj;
+
+namespace MQTTnet.Benchmarks.Configurations
+{
+    public class RuntimeCompareConfig : BaseConfig
+    {
+        public RuntimeCompareConfig()
+        {
+            AddJob(Job.Default.WithRuntime(ClrRuntime.Net48));
+            AddJob(Job.Default.WithRuntime(CoreRuntime.Core50).WithToolchain(CsProjCoreToolchain.NetCoreApp50));
+        }
+    }
+}