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59 lines
1.3 KiB
C#
59 lines
1.3 KiB
C#
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using System.Collections.Generic;
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namespace Spv.Generator
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{
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public class GeneratorPool<T> where T : class, new()
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{
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private List<T[]> _pool;
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private int _chunkIndex = -1;
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private int _poolIndex = -1;
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private int _initialSize;
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private int _poolSizeIncrement;
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public GeneratorPool(): this(1000, 200) { }
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public GeneratorPool(int chunkSizeLimit, int poolSizeIncrement)
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{
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_initialSize = chunkSizeLimit;
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_poolSizeIncrement = poolSizeIncrement;
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_pool = new(chunkSizeLimit * 2);
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AddChunkIfNeeded();
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}
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public T Allocate()
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{
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if (++_poolIndex >= _poolSizeIncrement)
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{
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AddChunkIfNeeded();
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_poolIndex = 0;
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}
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return _pool[_chunkIndex][_poolIndex];
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}
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private void AddChunkIfNeeded()
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{
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if (++_chunkIndex >= _pool.Count)
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{
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T[] pool = new T[_poolSizeIncrement];
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for (int i = 0; i < _poolSizeIncrement; i++)
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{
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pool[i] = new T();
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}
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_pool.Add(pool);
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}
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}
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public void Clear()
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{
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_chunkIndex = 0;
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_poolIndex = -1;
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}
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}
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}
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