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feat:support for concurrent file-based queries

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Alan
2023-07-26 21:25:34 +08:00
parent c8446edaab
commit 7f5ec337d0
13 changed files with 259 additions and 143 deletions
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26
binding/csharp/IP2Region.Net/Internal/VectorIndexCacheStrategy.cs Normal file
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// Copyright 2023 The Ip2Region Authors. All rights reserved.
// Use of this source code is governed by a Apache2.0-style
// license that can be found in the LICENSE file.
// @Author Alan <lzh.shap@gmail.com>
// @Date 2023/07/25
using IP2Region.Net.Internal.Abstractions;
namespace IP2Region.Net.Internal;
internal class VectorIndexCacheStrategy : AbstractCacheStrategy
{
private readonly ReadOnlyMemory<byte> _vectorIndex;
public VectorIndexCacheStrategy(string xdbPath) : base(xdbPath)
{
var vectorLength = VectorIndexRows * VectorIndexCols * VectorIndexSize;
_vectorIndex = base.GetData(HeaderInfoLength, vectorLength);
}
internal override ReadOnlyMemory<byte> GetVectorIndex(uint ip)
{
var idx = GetVectorIndexStartPos(ip);
return _vectorIndex.Slice(idx, VectorIndexSize);
}
}