How to implement asynchronous logging in C#

In C#, you can use async methods to implement asynchronous writing of logs. Here is a simple example:

public class Logger
{
    private static readonly object lockObject = new object();

    public static async Task WriteLogAsync(string message)
    {
        await Task.Run(() =>
        {
            lock (lockObject)
            {
                // 将日志写入文件或数据库等操作
                // 例如：File.AppendAllText("log.txt", message);
                
                // 可以在这里进行其他耗时的操作
            }
        });
    }
}

In the above code, the WriteLogAsync method is marked with the async modifier, indicating that it is an asynchronous method. Within the method, Task.Run method is used to start a new thread to perform the log writing operation, ensuring that it does not block the main thread.

By using the lock statement, multiple threads can safely access shared resources and avoid conflicts when writing to logs.

When using it, you can asynchronously write logs by calling the WriteLogAsync method.

await Logger.WriteLogAsync("This is a log message");

It is important to note that asynchronous logging simply moves the writing operation to a new thread to execute, but it does not actually improve the writing speed. If the writing operation itself is time-consuming, other time-consuming operations can be executed within the asynchronous method to fully utilize the advantages of asynchronous processing.