如何在C#中进行原子写入/追加,或者如何使用FILE_APPEND_DATA标志打开文件？

using System;
using System.IO;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        string filePath = "example.txt";
        string content = "This is a new line of text to append.";

        using (FileStream fileStream = new FileStream(filePath, FileMode.Append, FileAccess.Write, FileShare.None, 4096, FileOptions.WriteThrough | FileOptions.Asynchronous))
        {
            byte[] contentBytes = Encoding.UTF8.GetBytes(content + Environment.NewLine);
            await fileStream.WriteAsync(contentBytes, 0, contentBytes.Length);
        }
    }
}