Lucene.Net.Index.IndexWriter.StartSync C# (CSharp) Method

		private bool StartSync(System.String fileName, ICollection<string> pending)
		{
			lock (synced)
			{
				if (!synced.Contains(fileName))
				{
					if (!syncing.Contains(fileName))
					{
						syncing.Add(fileName);
						return true;
					}
					else
					{
						pending.Add(fileName);
						return false;
					}
				}
				else
					return false;
			}
		}