title: UWP - Writing to file from many different tasks at once
body: <p>I recently made logging module for UWP app. It's generally speaking some static class that has asynchronous fire-and-forget method for writing some messages to file.</p>
  
  <p>Because it's asynchronous I need to resolve situation in which two separate tasks will try to append text to file - it may happen on faster hardware. Is there something in UWP that will allow me to achieve such "funnel" behavior?</p>