Is there a simpler “repeat until success” snippet?

Question

C++ / C#

while (true)
   {
      try
      {
         File.WriteAllText(@"C:\\serv1.txt", "text");
         break;
      }
      catch (Exception)
      {
         Thread.Sleep(300);
      }
   }

Answer 1

Try this method (no way to test). The input is a delegate that needs to be executed.

void UntilSuccess(Action action) {
  if (action == null)
    throw new ArgumentNullException();

  while (true) {
      try
      {
         action.Invoke();
         break;
      }
      catch { Thread.Sleep(300); }
  }
}

// Использовать так:
UntilSuccess(() => File.WriteAllText(@"C:\\serv1.txt", "text"));

Answer 2

and if in a recursion?
type

private void writeText(){
  try
      {
         File.WriteAllText(@"C:\\serv1.txt", "text");
      }
      catch (Exception)
      {
         Thread.Sleep(300);
         writeText();
      }
}

And just call writeText();