Miscellany

        internal TorrentFileStream GetStream(TorrentFile file, FileAccess access)
        {
            TorrentFileStream s = FindStream(file.FullPath);

            if (s != null)
            {
                // If we are requesting write access and the current stream does not have it
                if (((access & FileAccess.Write) == FileAccess.Write) && !s.CanWrite)
                {
                    Logger.Log (null, "Didn't have write permission - reopening");
                    CloseAndRemove(s);
                    s = null;
                }
                else
                {
                    // Place the filestream at the end so we know it's been recently used
                    list.Remove(s);
                    list.Add(s);
                }
            }

            if (s == null)
            {
                if (!File.Exists(file.FullPath))
                {
                    Directory.CreateDirectory (Path.GetDirectoryName(file.FullPath));
                    SparseFile.CreateSparse (file.FullPath, file.Length);
                }
                s = new TorrentFileStream (file, FileMode.OpenOrCreate, access, FileShare.Read);

                // Ensure that we truncate existing files which are too large
                if (s.Length > file.Length) {
                    if (!s.CanWrite) {
                        s.Close();
                        s = new TorrentFileStream(file, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read);
                    }
                    s.SetLength(file.Length);
                }

                Add(s);
            }

            return s;
        }