System.Threading.ReaderWriterLock.TryGetOrCreateWriterEvent C# (CSharp) Méthode

        private AutoResetEvent TryGetOrCreateWriterEvent()
        {
            // The intention is to catch all exceptions, so that the caller can try again. Typically, only OutOfMemoryException
            // or any SystemException would be thrown. For instance, the EventWaitHandle constructor may throw IOException if
            // the Windows CreateEvent function fails due to low system resources. The idea is that any exception that may be
            // thrown will propagate to the user on a different path, through AcquireWriterLock.
            try
            {
                return GetOrCreateWriterEvent();
            }
            catch
            {
                return null;
            }
        }