PexFlags

The "peer exchange" hint flags that can accompany a peer when it is added: the port of the pex_flags_t constants in include/libtorrent/pex_flags.hpp.

Again modelled as a plain Int bitmap. These carry soft hints (the peer may be a seed, may support uTP, etc.) that PeerList.addPeer folds into the stored TorrentPeer. Bit positions match upstream.