How do I use ConcurrentQueue in C#?

How do I use ConcurrentQueue in C#?

ConcurrentQueue is a thread-safe collection that allows multiple threads to add and remove items concurrently. You can use it by including the System.Collections.Concurrent namespace.

Can you show me a simple example of adding and removing items?

Sure! Here's a basic example:

using System;
using System.Collections.Concurrent;

class Program
{
    static void Main()
    {
        ConcurrentQueue<int> queue = new ConcurrentQueue<int>();
        queue.Enqueue(1);
        queue.Enqueue(2);

        if (queue.TryDequeue(out int result))
        {
            Console.WriteLine(result); // Outputs: 1
        }
    }
}

What happens if multiple threads try to dequeue at the same time?

ConcurrentQueue handles that scenario safely. It ensures that each thread gets a unique item without any conflicts.

Are there any performance considerations I should be aware of?

Yes, while ConcurrentQueue is optimized for concurrent access, excessive contention can lead to performance degradation. It's best used when you have multiple producers and consumers.