bool is_valid_session()

in src/afs.cc [1181:1193]


	bool is_valid_session(uint64_t sessionID)
	{
		auto session = find_session(sessionID);
		if (session)
		{
			dshash_release_lock(sessions_, session);
			return true;
		}
		else
		{
			return false;
		}
	}