Method on_msg_bytes

src/p2p/P2PProtocolBasic.hpp:48–48

	bool handshake_ok() const override { return peer_version != 0; }

	virtual void on_msg_bytes(size_t, size_t) {}                   // downloaded, uploaded
	virtual void on_first_message_after_handshake() {}             // calling disconnect from here will crash
	virtual void on_msg_handshake(p2p::Handshake::Request &&) {}   // called after some internal processing
	virtual void on_msg_handshake(p2p::Handshake::Response &&) {}  // called after some internal processing