switch root namespace name to NITLOAD

2026-09-02 18:15:03 +08:00
parent 4218baad48
commit 7c7101ee48
502 changed files with 710 additions and 721 deletions
@@ -0,0 +1,64 @@
+// -----------------------------------------------------------------------------
+// file="ThreadHelper"
+// Project: StgSharp
+// Copyright (c) Nitload.
+// SPDX-License-Identifier: MIT
+// -----------------------------------------------------------------------------
+
+using Nitload.Common.HighPerformance.ProcessorAbstraction;
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+using System.Threading;
+
+namespace Nitload.Threading
+{
+    public static partial class ThreadHelper
+    {
+
+        private static readonly int mainThreadId = Environment.CurrentManagedThreadId;
+
+        private static readonly ThreadLocal<bool> isNotMainThread = new(
+            () => Environment.CurrentManagedThreadId != mainThreadId);
+
+        static ThreadHelper()
+        {
+            EmptyThread.Start();
+        }
+
+        /// <summary>
+        ///   An individual thread doing nothing,  and its <see cref="Thread.IsAlive" /> <see
+        ///   langword="property" /> always returns false.
+        /// </summary>
+        public static Thread EmptyThread { get; } = new(() => { });
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void BindToLogicalCore(
+                           LogicalCore core
+        )
+        {
+            SetThreadAffinity(core.GlobalCpuId, core.NumaNodeId);
+        }
+
+        [Conditional("DEBUG")]
+        internal static void MainThreadAssert()
+        {
+            if (isNotMainThread.Value) {
+                throw new InvalidOperationException(
+                    $"Attempt to call sensitive operation which can be only called from main thread from thread  {Environment.CurrentManagedThreadId}.");
+            }
+        }
+
+#pragma warning disable CA5393
+
+        [LibraryImport(Native.LibName, EntryPoint = "sn_set_thread_affinity")]
+        [UnmanagedCallConv(CallConvs = [typeof(CallConvCdecl)])]
+        [DefaultDllImportSearchPaths(DllImportSearchPath.AssemblyDirectory)]
+        private static partial void SetThreadAffinity(
+                                    uint globalCoreId,
+                                    uint numaNodeId
+        );
+
+#pragma warning restore CA5393
+    }
+}