Method AddConnectedRecently

libi2pd/SSU2.cpp:237–245

	}

	void SSU2Server::AddConnectedRecently (const boost::asio::ip::udp::endpoint& ep, uint64_t ts)
	{
		if (!ep.port () || ep.address ().is_unspecified () ||
		    i2p::util::GetSecondsSinceEpoch () > ts + SSU2_MAX_HOLE_PUNCH_EXPIRATION) return;
		std::lock_guard<std::mutex> l(m_ConnectedRecentlyMutex);
		auto [it, added] = m_ConnectedRecently.try_emplace (ep, ts);
		if (!added && ts > it->second)
			it->second = ts; // renew timestamp of existing endpoint
	}

	void SSU2Server::AdjustTimeOffset (int64_t offset, std::shared_ptr<const i2p::data::IdentityEx> from)
	{