无序线程安全集合用作池？

Question

我创建了一个池类,当被询问时,查找或初始化一个项目并将其返回给调用者.我使用a ConcurrentQueue<T>作为底层集合,但我不确定它是否是正确的类型.

我不需要任何特定顺序的项目,我需要的是一个线程安全的集合,我可以推送和弹出..NET是否有用于此目的的快速集合类？

编辑:我ConcurrentBag<T>在花钱回答后使用:

public sealed class Pool<T>
{
    private readonly Func<T> initializer;

    private readonly ConcurrentBag<T> bag;

    public Pool(Func<T> initializer)
    {
        if (initializer == null)
            throw new ArgumentNullException("initializer");

        this.initializer = initializer;
        this.bag = new ConcurrentBag<T>();
    }

    public Pool(Func<T> initializer, IEnumerable<T> collection)
    {
        if (initializer == null)
            throw new ArgumentNullException("initializer");

        if (collection == null)
            throw new ArgumentNullException("initializer");

        this.initializer = initializer;
        this.bag = new ConcurrentBag<T>(collection);
    }

    public Pool(Func<T> initializer, int allocationCount)
        : this(initializer)
    {
        if (allocationCount < 0)
            throw new ArgumentOutOfRangeException("allocationCount");

        for (int i = 0; i < allocationCount; i++)
            this.bag.Add(initializer.Invoke());
    }

    public void Push(T item)
    {
        this.bag.Add(item);
    }

    public T Pop()
    {
        T item;
        return this.bag.TryTake(out item)
            ? item
            : this.initializer.Invoke();
    }
}

Answer 1

ConcurrentBag听起来就像票.你需要自己处理空箱子,但它似乎很适合你的需求.特别是,ConcurrentBag.TryTake将从集合中获取一个项目,但不保证将返回任何特定项目.