CPU friendly infinite loop

Question

Writing an infinite loop is simple:

while(true){
    //add whatever break condition here
}

But this will trash the CPU performance. This ex

Answer 1

I did this for an application that had to process files as they were dropped on a folder. Your best bet is a timer (as suggested) with a Console.ReadLine() at the end of "main" without putting in a loop.

Now, your concern about telling the app to stop:

I have also done this via some rudimentary "file" monitor. Simply creating the file "quit.txt" in the root folder of the application (by either my program or another application that might request it to stop) will make the application quit. Semi-code:

watcher = new FileSystemWatcher();
watcher.Path = ;
watcher.Changed += new FileSystemEventHandler(OnNewFile);
Console.ReadLine();

The OnNewFile could be something like this:

private static void OnNewFile(object source, FileSystemEventArgs e)
{
    if(System.IO.Path.GetFileName(e.FullPath)).ToLower()=="quit.txt")
        ... remove current quit.txt
        Environment.Exit(1);
}

Now you mentioned that this is (or could be) for a mobile application? You might not have the file system watcher. In that case, maybe you just need to "kill" the process (you said "In special situations (like: updating the app), I need to request the app to stop". Whoever the "requester" to stop it is, should simply kill the process)