56 lines
1.2 KiB
C#
56 lines
1.2 KiB
C#
using System.Threading.Channels;
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namespace Manager.App.Services;
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public class CircularBuffer <T>
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{
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private readonly T[] _buffer;
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private readonly Channel<T> _channel;
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public int Capacity { get; }
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public int Head { get; private set; }
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public int Count { get; private set; }
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public CircularBuffer(int capacity)
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{
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if (capacity <= 0)
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{
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throw new ArgumentOutOfRangeException(nameof(capacity));
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}
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Capacity = capacity;
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_buffer = new T[Capacity];
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_channel = Channel.CreateUnbounded<T>(new UnboundedChannelOptions
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{
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SingleReader = false,
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SingleWriter = false,
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});
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}
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public void Add(T item)
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{
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_buffer[Head] = item;
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Head = (Head + 1) % _buffer.Length;
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if (Count < _buffer.Length)
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{
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Count++;
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}
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_channel.Writer.TryWrite(item);
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}
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public IEnumerable<T> Items
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{
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get
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{
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for (var i = 0; i < Count; i++)
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{
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yield return _buffer[(Head - Count + i + _buffer.Length) % _buffer.Length];
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}
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}
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}
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public IAsyncEnumerable<T> GetStreamAsync() => _channel.Reader.ReadAllAsync();
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} |