A .torrent file is very flexible in what it allows a path or filename to contain. Each directory name in a path is a length-prefixed utf-8 string. It can be an empty string, and it can have any character imaginable in it. The way a .torrent file represents filenames and paths is also agnostic to . . .
When allocating blocks in the disk cache, libtorrent uses valloc(), to allocate page-aligned 16kiB blocks. On windows, the natural couterpart to valloc() is VirtualAlloc(). Having these blocks page aligned may provide performance improvements when reading and writing files that are aligned to the block boundaries. The 16kiB allocation size is derived from the bittorrent protocol . . .