81 lines
2.7 KiB
C#
81 lines
2.7 KiB
C#
//-----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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// file="L4.EvictionRing.cs"
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// Project: StgSharp
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// AuthorGroup: Nitload Space
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// Copyright (c) Nitload Space. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the “Software”), to deal in the Software without restriction,
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// including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software,
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// and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and
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// this permission notice shall be included in all copies
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// or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED “AS IS”,
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// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH
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// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// -----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace StgSharp.HighPerformance.Memory
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{
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public partial class L4
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{
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private EvictionRing _ring ;
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private unsafe class EvictionRing
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{
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private nint[] _bucket;
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public void AddNode(CacheLineHead* node)
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{
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nint address = node->_address;
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int hash = (int)(address % (nint)_bucket.Length);
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nint head = _bucket[hash];
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if (head != 0)
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{
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CacheLineHead* headNode = (CacheLineHead*)head;
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headNode->_prev = node;
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node->_next = headNode;
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}
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_bucket[hash] = address;
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}
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}
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[StructLayout(LayoutKind.Sequential)]
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private unsafe struct CacheLineHead
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{
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internal CacheLineHead* _next;
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internal CacheLineHead* _prev;
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internal int _level;
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internal int _refCount;
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internal nuint _address;
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}
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}
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}
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