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26 lines
765 B
C#
26 lines
765 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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class ContentCacheStrategy(string xdbPath) : AbstractCacheStrategy(xdbPath)
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{
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ReadOnlyMemory<byte> _cacheData = ReadOnlyMemory<byte>.Empty;
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internal override ReadOnlyMemory<byte> GetData(int offset, int length)
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{
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if (_cacheData.IsEmpty)
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{
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using var reader = base.GetXdbFileStream();
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_cacheData = base.GetData(0, (int)reader.Length);
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}
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return _cacheData.Slice(offset, length);
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}
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}
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