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FPGA_WebLab/server/src/Common/SemaphorePool.cs
2025-07-08 21:26:45 +08:00

117 lines
2.7 KiB
C#

using System.Collections.Concurrent;
using DotNext;
namespace Common;
/// <summary>
/// [TODO:description]
/// </summary>
public class SemaphorePool
{
private SemaphoreSlim semaphore;
private ConcurrentQueue<int> queue;
private int beginNum;
/// <summary>
/// [TODO:description]
/// </summary>
public int RemainingCount { get; }
/// <summary>
/// [TODO:description]
/// </summary>
public int MaxCount { get; }
/// <summary>
/// [TODO:description]
/// </summary>
/// <param name="initialCount">[TODO:parameter]</param>
/// <param name="beginNum">[TODO:parameter]</param>
/// <returns>[TODO:return]</returns>
public SemaphorePool(int initialCount, int beginNum = 0)
{
semaphore = new SemaphoreSlim(initialCount);
queue = new ConcurrentQueue<int>();
this.beginNum = beginNum;
this.RemainingCount = initialCount;
this.MaxCount = initialCount;
for (int i = 0; i < initialCount; i++)
{
queue.Enqueue(beginNum + i);
}
}
/// <summary>
/// [TODO:description]
/// </summary>
/// <param name="initialCount">[TODO:parameter]</param>
/// <param name="maxCount">[TODO:parameter]</param>
/// <param name="beginNum">[TODO:parameter]</param>
/// <returns>[TODO:return]</returns>
public SemaphorePool(int initialCount, int maxCount, int beginNum = 0)
{
semaphore = new SemaphoreSlim(initialCount, maxCount);
queue = new ConcurrentQueue<int>();
this.beginNum = beginNum;
this.RemainingCount = initialCount;
this.MaxCount = maxCount;
for (int i = 0; i < initialCount; i++)
{
queue.Enqueue(beginNum + i);
}
}
/// <summary>
/// [TODO:description]
/// </summary>
/// <returns>[TODO:return]</returns>
public Result<int> Wait()
{
semaphore.Wait();
int pop;
if (queue.TryDequeue(out pop))
{
return pop;
}
else
{
return new(new Exception($"TODO"));
}
}
/// <summary>
/// [TODO:description]
/// </summary>
/// <returns>[TODO:return]</returns>
public async ValueTask<Result<int>> WaitAsync()
{
await semaphore.WaitAsync();
int pop;
if (queue.TryDequeue(out pop))
{
return pop;
}
else
{
return new(new Exception($"TODO"));
}
}
/// <summary>
/// [TODO:description]
/// </summary>
/// <returns>[TODO:return]</returns>
public void Release()
{
semaphore.Release();
queue.Clear();
for (int i = 0; i < MaxCount; i++)
{
queue.Enqueue(beginNum + i);
}
}
}