forked from nanocurrency/nano-node
/
bootstrap.hpp
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bootstrap.hpp
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#pragma once
#include <nano/node/common.hpp>
#include <nano/secure/blockstore.hpp>
#include <nano/secure/ledger.hpp>
#include <atomic>
#include <future>
#include <queue>
#include <stack>
#include <unordered_set>
#include <boost/log/sources/logger.hpp>
#include <boost/thread/thread.hpp>
namespace nano
{
class bootstrap_attempt;
class bootstrap_client;
class node;
enum class sync_result
{
success,
error,
fork
};
class socket : public std::enable_shared_from_this<nano::socket>
{
public:
socket (std::shared_ptr<nano::node>);
void async_connect (nano::tcp_endpoint const &, std::function<void(boost::system::error_code const &)>);
void async_read (std::shared_ptr<std::vector<uint8_t>>, size_t, std::function<void(boost::system::error_code const &, size_t)>);
void async_write (std::shared_ptr<std::vector<uint8_t>>, std::function<void(boost::system::error_code const &, size_t)>);
void start (std::chrono::steady_clock::time_point = std::chrono::steady_clock::now () + std::chrono::seconds (5));
void stop ();
void close ();
void checkup ();
nano::tcp_endpoint remote_endpoint ();
boost::asio::ip::tcp::socket socket_m;
private:
std::atomic<uint64_t> cutoff;
std::shared_ptr<nano::node> node;
};
/**
* The length of every message header, parsed by nano::message::read_header ()
* The 2 here represents the size of a std::bitset<16>, which is 2 chars long normally
*/
static const int bootstrap_message_header_size = sizeof (nano::message_header::magic_number) + sizeof (uint8_t) + sizeof (uint8_t) + sizeof (uint8_t) + sizeof (nano::message_type) + 2;
class bootstrap_client;
class pull_info
{
public:
typedef nano::bulk_pull::count_t count_t;
pull_info ();
pull_info (nano::account const &, nano::block_hash const &, nano::block_hash const &, count_t = 0);
nano::account account;
nano::block_hash head;
nano::block_hash end;
count_t count;
unsigned attempts;
};
enum class bootstrap_mode
{
legacy,
lazy,
wallet_lazy
};
class frontier_req_client;
class bulk_push_client;
class bulk_pull_account_client;
class bootstrap_attempt : public std::enable_shared_from_this<bootstrap_attempt>
{
public:
bootstrap_attempt (std::shared_ptr<nano::node> node_a);
~bootstrap_attempt ();
void run ();
std::shared_ptr<nano::bootstrap_client> connection (std::unique_lock<std::mutex> &);
bool consume_future (std::future<bool> &);
void populate_connections ();
bool request_frontier (std::unique_lock<std::mutex> &);
void request_pull (std::unique_lock<std::mutex> &);
void request_push (std::unique_lock<std::mutex> &);
void add_connection (nano::endpoint const &);
void pool_connection (std::shared_ptr<nano::bootstrap_client>);
void stop ();
void requeue_pull (nano::pull_info const &);
void add_pull (nano::pull_info const &);
bool still_pulling ();
unsigned target_connections (size_t pulls_remaining);
bool should_log ();
void add_bulk_push_target (nano::block_hash const &, nano::block_hash const &);
bool process_block (std::shared_ptr<nano::block>, nano::account const &, uint64_t, bool);
void lazy_run ();
void lazy_start (nano::block_hash const &);
void lazy_add (nano::block_hash const &);
bool lazy_finished ();
void lazy_pull_flush ();
void lazy_clear ();
void request_pending (std::unique_lock<std::mutex> &);
void requeue_pending (nano::account const &);
void wallet_run ();
void wallet_start (std::deque<nano::account> &);
bool wallet_finished ();
std::chrono::steady_clock::time_point next_log;
std::deque<std::weak_ptr<nano::bootstrap_client>> clients;
std::weak_ptr<nano::bootstrap_client> connection_frontier_request;
std::weak_ptr<nano::frontier_req_client> frontiers;
std::weak_ptr<nano::bulk_push_client> push;
std::deque<nano::pull_info> pulls;
std::deque<std::shared_ptr<nano::bootstrap_client>> idle;
std::atomic<unsigned> connections;
std::atomic<unsigned> pulling;
std::shared_ptr<nano::node> node;
std::atomic<unsigned> account_count;
std::atomic<uint64_t> total_blocks;
std::atomic<unsigned> runs_count;
std::vector<std::pair<nano::block_hash, nano::block_hash>> bulk_push_targets;
bool stopped;
nano::bootstrap_mode mode;
std::mutex mutex;
std::condition_variable condition;
// Lazy bootstrap
std::unordered_set<nano::block_hash> lazy_blocks;
std::unordered_map<nano::block_hash, std::pair<nano::block_hash, nano::uint128_t>> lazy_state_unknown;
std::unordered_map<nano::block_hash, nano::uint128_t> lazy_balances;
std::unordered_set<nano::block_hash> lazy_keys;
std::deque<nano::block_hash> lazy_pulls;
std::atomic<uint64_t> lazy_stopped;
uint64_t lazy_max_pull_blocks = nano::is_test_network ? 2 : 512;
uint64_t lazy_max_stopped = 256;
std::mutex lazy_mutex;
// Wallet lazy bootstrap
std::deque<nano::account> wallet_accounts;
};
class frontier_req_client : public std::enable_shared_from_this<nano::frontier_req_client>
{
public:
frontier_req_client (std::shared_ptr<nano::bootstrap_client>);
~frontier_req_client ();
void run ();
void receive_frontier ();
void received_frontier (boost::system::error_code const &, size_t);
void unsynced (nano::block_hash const &, nano::block_hash const &);
void next (nano::transaction const &);
std::shared_ptr<nano::bootstrap_client> connection;
nano::account current;
nano::block_hash frontier;
unsigned count;
nano::account landing;
nano::account faucet;
std::chrono::steady_clock::time_point start_time;
std::promise<bool> promise;
/** A very rough estimate of the cost of `bulk_push`ing missing blocks */
uint64_t bulk_push_cost;
std::deque<std::pair<nano::account, nano::block_hash>> accounts;
static size_t constexpr size_frontier = sizeof (nano::account) + sizeof (nano::block_hash);
};
class bulk_pull_client : public std::enable_shared_from_this<nano::bulk_pull_client>
{
public:
bulk_pull_client (std::shared_ptr<nano::bootstrap_client>, nano::pull_info const &);
~bulk_pull_client ();
void request ();
void receive_block ();
void received_type ();
void received_block (boost::system::error_code const &, size_t, nano::block_type);
nano::block_hash first ();
std::shared_ptr<nano::bootstrap_client> connection;
nano::block_hash expected;
nano::account known_account;
nano::pull_info pull;
uint64_t total_blocks;
uint64_t unexpected_count;
};
class bootstrap_client : public std::enable_shared_from_this<bootstrap_client>
{
public:
bootstrap_client (std::shared_ptr<nano::node>, std::shared_ptr<nano::bootstrap_attempt>, nano::tcp_endpoint const &);
~bootstrap_client ();
void run ();
std::shared_ptr<nano::bootstrap_client> shared ();
void stop (bool force);
double block_rate () const;
double elapsed_seconds () const;
std::shared_ptr<nano::node> node;
std::shared_ptr<nano::bootstrap_attempt> attempt;
std::shared_ptr<nano::socket> socket;
std::shared_ptr<std::vector<uint8_t>> receive_buffer;
nano::tcp_endpoint endpoint;
std::chrono::steady_clock::time_point start_time;
std::atomic<uint64_t> block_count;
std::atomic<bool> pending_stop;
std::atomic<bool> hard_stop;
};
class bulk_push_client : public std::enable_shared_from_this<nano::bulk_push_client>
{
public:
bulk_push_client (std::shared_ptr<nano::bootstrap_client> const &);
~bulk_push_client ();
void start ();
void push (nano::transaction const &);
void push_block (nano::block const &);
void send_finished ();
std::shared_ptr<nano::bootstrap_client> connection;
std::promise<bool> promise;
std::pair<nano::block_hash, nano::block_hash> current_target;
};
class bulk_pull_account_client : public std::enable_shared_from_this<nano::bulk_pull_account_client>
{
public:
bulk_pull_account_client (std::shared_ptr<nano::bootstrap_client>, nano::account const &);
~bulk_pull_account_client ();
void request ();
void receive_pending ();
std::shared_ptr<nano::bootstrap_client> connection;
nano::account account;
uint64_t total_blocks;
};
class bootstrap_initiator
{
public:
bootstrap_initiator (nano::node &);
~bootstrap_initiator ();
void bootstrap (nano::endpoint const &, bool add_to_peers = true);
void bootstrap ();
void bootstrap_lazy (nano::block_hash const &, bool = false);
void bootstrap_wallet (std::deque<nano::account> &);
void run_bootstrap ();
void notify_listeners (bool);
void add_observer (std::function<void(bool)> const &);
bool in_progress ();
std::shared_ptr<nano::bootstrap_attempt> current_attempt ();
void stop ();
private:
nano::node & node;
std::shared_ptr<nano::bootstrap_attempt> attempt;
bool stopped;
std::mutex mutex;
std::condition_variable condition;
std::vector<std::function<void(bool)>> observers;
boost::thread thread;
friend std::unique_ptr<seq_con_info_component> collect_seq_con_info (bootstrap_initiator & bootstrap_initiator, const std::string & name);
};
std::unique_ptr<seq_con_info_component> collect_seq_con_info (bootstrap_initiator & bootstrap_initiator, const std::string & name);
class bootstrap_server;
class bootstrap_listener
{
public:
bootstrap_listener (boost::asio::io_context &, uint16_t, nano::node &);
void start ();
void stop ();
void accept_connection ();
void accept_action (boost::system::error_code const &, std::shared_ptr<nano::socket>);
std::mutex mutex;
std::unordered_map<nano::bootstrap_server *, std::weak_ptr<nano::bootstrap_server>> connections;
nano::tcp_endpoint endpoint ();
boost::asio::ip::tcp::acceptor acceptor;
nano::tcp_endpoint local;
boost::asio::io_context & io_ctx;
nano::node & node;
bool on;
private:
boost::asio::steady_timer defer_acceptor;
};
std::unique_ptr<seq_con_info_component> collect_seq_con_info (bootstrap_listener & bootstrap_listener, const std::string & name);
class message;
class bootstrap_server : public std::enable_shared_from_this<nano::bootstrap_server>
{
public:
bootstrap_server (std::shared_ptr<nano::socket>, std::shared_ptr<nano::node>);
~bootstrap_server ();
void receive ();
void receive_header_action (boost::system::error_code const &, size_t);
void receive_bulk_pull_action (boost::system::error_code const &, size_t, nano::message_header const &);
void receive_bulk_pull_account_action (boost::system::error_code const &, size_t, nano::message_header const &);
void receive_frontier_req_action (boost::system::error_code const &, size_t, nano::message_header const &);
void add_request (std::unique_ptr<nano::message>);
void finish_request ();
void run_next ();
std::shared_ptr<std::vector<uint8_t>> receive_buffer;
std::shared_ptr<nano::socket> socket;
std::shared_ptr<nano::node> node;
std::mutex mutex;
std::queue<std::unique_ptr<nano::message>> requests;
};
class bulk_pull;
class bulk_pull_server : public std::enable_shared_from_this<nano::bulk_pull_server>
{
public:
bulk_pull_server (std::shared_ptr<nano::bootstrap_server> const &, std::unique_ptr<nano::bulk_pull>);
void set_current_end ();
std::shared_ptr<nano::block> get_next ();
void send_next ();
void sent_action (boost::system::error_code const &, size_t);
void send_finished ();
void no_block_sent (boost::system::error_code const &, size_t);
std::shared_ptr<nano::bootstrap_server> connection;
std::unique_ptr<nano::bulk_pull> request;
std::shared_ptr<std::vector<uint8_t>> send_buffer;
nano::block_hash current;
bool include_start;
nano::bulk_pull::count_t max_count;
nano::bulk_pull::count_t sent_count;
};
class bulk_pull_account;
class bulk_pull_account_server : public std::enable_shared_from_this<nano::bulk_pull_account_server>
{
public:
bulk_pull_account_server (std::shared_ptr<nano::bootstrap_server> const &, std::unique_ptr<nano::bulk_pull_account>);
void set_params ();
std::pair<std::unique_ptr<nano::pending_key>, std::unique_ptr<nano::pending_info>> get_next ();
void send_frontier ();
void send_next_block ();
void sent_action (boost::system::error_code const &, size_t);
void send_finished ();
void complete (boost::system::error_code const &, size_t);
std::shared_ptr<nano::bootstrap_server> connection;
std::unique_ptr<nano::bulk_pull_account> request;
std::shared_ptr<std::vector<uint8_t>> send_buffer;
std::unordered_set<nano::uint256_union> deduplication;
nano::pending_key current_key;
bool pending_address_only;
bool pending_include_address;
bool invalid_request;
};
class bulk_push_server : public std::enable_shared_from_this<nano::bulk_push_server>
{
public:
bulk_push_server (std::shared_ptr<nano::bootstrap_server> const &);
void receive ();
void received_type ();
void received_block (boost::system::error_code const &, size_t, nano::block_type);
std::shared_ptr<std::vector<uint8_t>> receive_buffer;
std::shared_ptr<nano::bootstrap_server> connection;
};
class frontier_req;
class frontier_req_server : public std::enable_shared_from_this<nano::frontier_req_server>
{
public:
frontier_req_server (std::shared_ptr<nano::bootstrap_server> const &, std::unique_ptr<nano::frontier_req>);
void send_next ();
void sent_action (boost::system::error_code const &, size_t);
void send_finished ();
void no_block_sent (boost::system::error_code const &, size_t);
void next ();
std::shared_ptr<nano::bootstrap_server> connection;
nano::account current;
nano::block_hash frontier;
std::unique_ptr<nano::frontier_req> request;
std::shared_ptr<std::vector<uint8_t>> send_buffer;
size_t count;
std::deque<std::pair<nano::account, nano::block_hash>> accounts;
};
}