c# What's the correct way to implement Semaphore Slim in this context

August 30, 2023

I heared about semaphore slim to limit thread access to something but I dont know its exact usage in async context?

if (!LOGS_FILE.Equals(string.Empty) && File.Exists(LOGS_FILE))
{
    using (StreamWriter STREAM_WRITER = new StreamWriter(LOGS_FILE, true))
    {
        STREAM_WRITER.WriteLine(LOG);
    }
}

if (IsDebuggerAttached())
{
    System.Diagnostics.Debug.WriteLine(LOG);
}

ALL_LOGS += LOG + "\n";

>Solution :

Try this:

try
{
    SEMAPHORE_SLIM.Wait();

    if (!LOGS_FILE.Equals(string.Empty) && File.Exists(LOGS_FILE))
    {
        using (StreamWriter STREAM_WRITER = new StreamWriter(LOGS_FILE, true))
        {
            STREAM_WRITER.WriteLine(LOG);
        }
    }

    if (IsDebuggerAttached())
    {
        System.Diagnostics.Debug.WriteLine(LOG);
    }

    ALL_LOGS += LOG + "\n";
}
finally
{
    SEMAPHORE_SLIM.Release();
}

EDIT: Added try finally block