Example of using Channels instead of lock (by ChatGPT)

Channels_example.cs

using System;
using System.Threading.Channels;
using System.Threading.Tasks;

class Example
{
    static async Task Main(string[] args)
    {
        var channel = Channel.CreateUnbounded<string>();
        var producerTask = ProduceMessagesAsync(channel.Writer);
        var consumerTask = ConsumeMessagesAsync(channel.Reader);

        await Task.WhenAll(producerTask, consumerTask);
    }

    static async Task ProduceMessagesAsync(ChannelWriter<string> writer)
    {
        string[] messages = { "Message 1", "Message 2", "Message 3", "Done" };

        foreach (var message in messages)
        {
            await writer.WriteAsync(message);
            Console.WriteLine($"Produced: {message}");
        }

        writer.Complete();
    }

    static async Task ConsumeMessagesAsync(ChannelReader<string> reader)
    {
        await foreach (var message in reader.ReadAllAsync())
        {
            if (message == "Done")
            {
                Console.WriteLine("Consumer finished.");
                break;
            }

            Console.WriteLine($"Consumed: {message}");
        }
    }
}