dncurrency/nano/node/peer_exclusion.hpp

62 lines
1.8 KiB
C++

#pragma once
#include <nano/node/endpoint.hpp>
#include <nano/node/endpoint_templ.hpp>
#include <boost/multi_index/hashed_index.hpp>
#include <boost/multi_index/member.hpp>
#include <boost/multi_index/ordered_index.hpp>
#include <boost/multi_index_container.hpp>
namespace mi = boost::multi_index;
namespace nano
{
class peer_exclusion final
{
class item final
{
public:
std::chrono::steady_clock::time_point exclude_until;
decltype (std::declval<nano::tcp_endpoint> ().address ()) address;
uint64_t score;
};
public:
explicit peer_exclusion (std::size_t max_size = 5000);
private:
std::size_t const max_size;
// clang-format off
class tag_endpoint {};
class tag_exclusion {};
using ordered_endpoints = boost::multi_index_container<peer_exclusion::item,
mi::indexed_by<
mi::ordered_non_unique<mi::tag<tag_exclusion>,
mi::member<peer_exclusion::item, std::chrono::steady_clock::time_point, &peer_exclusion::item::exclude_until>>,
mi::hashed_unique<mi::tag<tag_endpoint>,
mi::member<peer_exclusion::item, decltype(peer_exclusion::item::address), &peer_exclusion::item::address>>>>;
// clang-format on
ordered_endpoints peers;
mutable nano::mutex mutex;
public:
constexpr static uint64_t score_limit = 2;
constexpr static std::chrono::hours exclude_time_hours = std::chrono::hours (1);
constexpr static std::chrono::hours exclude_remove_hours = std::chrono::hours (24);
uint64_t add (nano::tcp_endpoint const &);
uint64_t score (nano::tcp_endpoint const &) const;
std::chrono::steady_clock::time_point until (nano::tcp_endpoint const &) const;
bool check (nano::tcp_endpoint const &) const;
bool check (boost::asio::ip::address const &) const;
void remove (nano::tcp_endpoint const &);
std::size_t size () const;
nano::container_info container_info () const;
};
}