diff options
Diffstat (limited to 'src/mscorlib/corefx/System/Buffers/TlsOverPerCoreLockedStacksArrayPool.Unix.cs')
-rw-r--r-- | src/mscorlib/corefx/System/Buffers/TlsOverPerCoreLockedStacksArrayPool.Unix.cs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/mscorlib/corefx/System/Buffers/TlsOverPerCoreLockedStacksArrayPool.Unix.cs b/src/mscorlib/corefx/System/Buffers/TlsOverPerCoreLockedStacksArrayPool.Unix.cs new file mode 100644 index 0000000000..8a1d006b12 --- /dev/null +++ b/src/mscorlib/corefx/System/Buffers/TlsOverPerCoreLockedStacksArrayPool.Unix.cs @@ -0,0 +1,28 @@ +// 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 Microsoft.Win32; +using System.Runtime.CompilerServices; + +namespace System.Buffers +{ + internal sealed partial class TlsOverPerCoreLockedStacksArrayPool<T> + { + /// <summary>Get an identifier for the current thread to use to index into the stacks.</summary> + private static int ExecutionId + { + [MethodImpl(MethodImplOptions.AggressiveInlining)] + get + { + // On Unix, CurrentProcessorNumber is implemented in terms of sched_getcpu, which + // doesn't exist on all platforms. On those it doesn't exist on, GetCurrentProcessorNumber + // returns -1. As a fallback in that case and to spread the threads across the buckets + // by default, we use the current managed thread ID as a proxy. + int id = CurrentProcessorNumber; + if (id < 0) id = Environment.CurrentManagedThreadId; + return id; + } + } + } +} |