43 lines
1.2 KiB
C#
43 lines
1.2 KiB
C#
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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.Text;
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using System.Collections.Concurrent;
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using System.IO;
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namespace Common
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{
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/// <summary>
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/// MemoryStream对象池，用于高并发场景减少GC压力
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/// </summary>
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internal static class MemoryStreamPool
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{
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private static readonly ConcurrentBag<MemoryStream> pool = new ConcurrentBag<MemoryStream>();
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private const int MaxPoolSize = 100;
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private const int MaxStreamCapacity = 10240; // 10KB，超过此大小的流不放回池中
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public static MemoryStream Rent()
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{
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MemoryStream stream = null;
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if (pool.TryTake(out stream))
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{
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stream.Position = 0;
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stream.SetLength(0);
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return stream;
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}
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return new MemoryStream();
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}
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public static void Return(MemoryStream stream)
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{
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if (stream != null && stream.Capacity <= MaxStreamCapacity && pool.Count < MaxPoolSize)
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{
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stream.Position = 0;
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stream.SetLength(0);
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pool.Add(stream);
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}
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}
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}
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}
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