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https://git.wownero.com/wownero/wownero.git
synced 2024-12-22 22:08:54 +00:00
Fix timeout checks for forwarded and Dandelion++ stem txes
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@ -1725,7 +1725,7 @@ namespace cryptonote
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m_starter_message_showed = true;
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}
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m_txpool_auto_relayer.do_call(boost::bind(&core::relay_txpool_transactions, this));
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relay_txpool_transactions(); // txpool handles periodic DB checking
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m_check_updates_interval.do_call(boost::bind(&core::check_updates, this));
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m_check_disk_space_interval.do_call(boost::bind(&core::check_disk_space, this));
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m_block_rate_interval.do_call(boost::bind(&core::check_block_rate, this));
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@ -1065,7 +1065,6 @@ namespace cryptonote
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epee::math_helper::once_a_time_seconds<60*60*12, false> m_store_blockchain_interval; //!< interval for manual storing of Blockchain, if enabled
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epee::math_helper::once_a_time_seconds<60*60*2, true> m_fork_moaner; //!< interval for checking HardFork status
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epee::math_helper::once_a_time_seconds<60*2, false> m_txpool_auto_relayer; //!< interval for checking re-relaying txpool transactions
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epee::math_helper::once_a_time_seconds<60*60*12, true> m_check_updates_interval; //!< interval for checking for new versions
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epee::math_helper::once_a_time_seconds<60*10, true> m_check_disk_space_interval; //!< interval for checking for disk space
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epee::math_helper::once_a_time_seconds<90, false> m_block_rate_interval; //!< interval for checking block rate
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@ -91,6 +91,9 @@ namespace cryptonote
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time_t const MAX_RELAY_TIME = (60 * 60 * 4); // at most that many seconds between resends
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float const ACCEPT_THRESHOLD = 1.0f;
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//! Max DB check interval for relayable txes
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constexpr const std::chrono::minutes max_relayable_check{2};
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constexpr const std::chrono::seconds forward_delay_average{CRYPTONOTE_FORWARD_DELAY_AVERAGE};
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// a kind of increasing backoff within min/max bounds
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@ -115,12 +118,21 @@ namespace cryptonote
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else
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return get_min_block_weight(version) - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE;
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}
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// external lock must be held for the comparison+set to work properly
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void set_if_less(std::atomic<time_t>& next_check, const time_t candidate) noexcept
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{
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if (candidate < next_check.load(std::memory_order_relaxed))
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next_check = candidate;
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}
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}
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//---------------------------------------------------------------------------------
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//---------------------------------------------------------------------------------
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tx_memory_pool::tx_memory_pool(Blockchain& bchs): m_blockchain(bchs), m_cookie(0), m_txpool_max_weight(DEFAULT_TXPOOL_MAX_WEIGHT), m_txpool_weight(0), m_mine_stem_txes(false)
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tx_memory_pool::tx_memory_pool(Blockchain& bchs): m_blockchain(bchs), m_cookie(0), m_txpool_max_weight(DEFAULT_TXPOOL_MAX_WEIGHT), m_txpool_weight(0), m_mine_stem_txes(false), m_next_check(std::time(nullptr))
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{
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// class code expects unsigned values throughout
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if (m_next_check < time_t(0))
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throw std::runtime_error{"Unexpected time_t (system clock) value"};
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}
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//---------------------------------------------------------------------------------
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bool tx_memory_pool::add_tx(transaction &tx, /*const crypto::hash& tx_prefix_hash,*/ const crypto::hash &id, const cryptonote::blobdata &blob, size_t tx_weight, tx_verification_context& tvc, relay_method tx_relay, bool relayed, uint8_t version)
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@ -314,7 +326,10 @@ namespace cryptonote
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using clock = std::chrono::system_clock;
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auto last_relayed_time = std::numeric_limits<decltype(meta.last_relayed_time)>::max();
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if (tx_relay == relay_method::forward)
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{
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last_relayed_time = clock::to_time_t(clock::now() + crypto::random_poisson_seconds{forward_delay_average}());
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set_if_less(m_next_check, time_t(last_relayed_time));
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}
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// else the `set_relayed` function will adjust the time accordingly later
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//update transactions container
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@ -728,16 +743,22 @@ namespace cryptonote
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}
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//---------------------------------------------------------------------------------
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//TODO: investigate whether boolean return is appropriate
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bool tx_memory_pool::get_relayable_transactions(std::vector<std::tuple<crypto::hash, cryptonote::blobdata, relay_method>> &txs) const
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bool tx_memory_pool::get_relayable_transactions(std::vector<std::tuple<crypto::hash, cryptonote::blobdata, relay_method>> &txs)
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{
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std::vector<std::pair<crypto::hash, txpool_tx_meta_t>> change_timestamps;
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using clock = std::chrono::system_clock;
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const uint64_t now = time(NULL);
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if (uint64_t{std::numeric_limits<time_t>::max()} < now || time_t(now) < m_next_check)
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return false;
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uint64_t next_check = clock::to_time_t(clock::from_time_t(time_t(now)) + max_relayable_check);
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std::vector<std::pair<crypto::hash, txpool_tx_meta_t>> change_timestamps;
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CRITICAL_REGION_LOCAL(m_transactions_lock);
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CRITICAL_REGION_LOCAL1(m_blockchain);
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LockedTXN lock(m_blockchain.get_db());
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txs.reserve(m_blockchain.get_txpool_tx_count());
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m_blockchain.for_all_txpool_txes([this, now, &txs, &change_timestamps](const crypto::hash &txid, const txpool_tx_meta_t &meta, const cryptonote::blobdata_ref *){
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m_blockchain.for_all_txpool_txes([this, now, &txs, &change_timestamps, &next_check](const crypto::hash &txid, const txpool_tx_meta_t &meta, const cryptonote::blobdata_ref *){
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// 0 fee transactions are never relayed
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if(!meta.pruned && meta.fee > 0 && !meta.do_not_relay)
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{
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@ -747,7 +768,10 @@ namespace cryptonote
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case relay_method::stem:
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case relay_method::forward:
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if (meta.last_relayed_time > now)
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{
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next_check = std::min(next_check, meta.last_relayed_time);
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return true; // continue to next tx
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}
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change_timestamps.emplace_back(txid, meta);
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break;
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default:
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@ -792,6 +816,8 @@ namespace cryptonote
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elem.second.last_relayed_time = now + get_relay_delay(now, elem.second.receive_time);
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m_blockchain.update_txpool_tx(elem.first, elem.second);
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}
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m_next_check = time_t(next_check);
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return true;
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}
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//---------------------------------------------------------------------------------
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@ -799,6 +825,7 @@ namespace cryptonote
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{
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crypto::random_poisson_seconds embargo_duration{dandelionpp_embargo_average};
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const auto now = std::chrono::system_clock::now();
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uint64_t next_relay = uint64_t{std::numeric_limits<time_t>::max()};
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CRITICAL_REGION_LOCAL(m_transactions_lock);
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CRITICAL_REGION_LOCAL1(m_blockchain);
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@ -815,7 +842,10 @@ namespace cryptonote
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meta.relayed = true;
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if (meta.dandelionpp_stem)
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{
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meta.last_relayed_time = std::chrono::system_clock::to_time_t(now + embargo_duration());
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next_relay = std::min(next_relay, meta.last_relayed_time);
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}
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else
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meta.last_relayed_time = std::chrono::system_clock::to_time_t(now);
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@ -829,6 +859,7 @@ namespace cryptonote
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}
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}
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lock.commit();
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set_if_less(m_next_check, time_t(next_relay));
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}
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//---------------------------------------------------------------------------------
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size_t tx_memory_pool::get_transactions_count(bool include_sensitive) const
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@ -31,6 +31,7 @@
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#pragma once
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#include "include_base_utils.h"
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#include <atomic>
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#include <set>
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#include <tuple>
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#include <unordered_map>
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@ -329,11 +330,14 @@ namespace cryptonote
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* isn't old enough that relaying it is considered harmful
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* Note a transaction can be "relayable" even if do_not_relay is true
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*
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* This function will skip all DB checks if an insufficient amount of
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* time since the last call.
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*
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* @param txs return-by-reference the transactions and their hashes
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*
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* @return true
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* @return True if DB was checked, false if DB checks skipped.
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*/
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bool get_relayable_transactions(std::vector<std::tuple<crypto::hash, cryptonote::blobdata, relay_method>>& txs) const;
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bool get_relayable_transactions(std::vector<std::tuple<crypto::hash, cryptonote::blobdata, relay_method>>& txs);
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/**
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* @brief tell the pool that certain transactions were just relayed
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@ -609,6 +613,9 @@ private:
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mutable std::unordered_map<crypto::hash, std::tuple<bool, tx_verification_context, uint64_t, crypto::hash>> m_input_cache;
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std::unordered_map<crypto::hash, transaction> m_parsed_tx_cache;
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//! Next timestamp that a DB check for relayable txes is allowed
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std::atomic<time_t> m_next_check;
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};
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}
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