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26 lines
805 B
C#
26 lines
805 B
C#
// Copyright 2023 The Ip2Region Authors. All rights reserved.
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// Use of this source code is governed by a Apache2.0-style
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// license that can be found in the LICENSE file.
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// @Author Alan <lzh.shap@gmail.com>
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// @Date 2023/07/25
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using IP2Region.Net.Internal.Abstractions;
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namespace IP2Region.Net.Internal;
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internal class VectorIndexCacheStrategy : AbstractCacheStrategy
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{
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const int HeaderInfoLength = 256;
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const int VectorIndexRows = 256;
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const int VectorIndexCols = 256;
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const int VectorIndexSize = 8;
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readonly ReadOnlyMemory<byte> _vectorIndex;
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public VectorIndexCacheStrategy(string xdbPath) : base(xdbPath)
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{
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var vectorLength = VectorIndexRows * VectorIndexCols * VectorIndexSize;
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_vectorIndex = base.GetData(HeaderInfoLength, vectorLength);
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}
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}
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