2015-04-23 16:07:22 +00:00
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// Copyright (c) 2011-2015 The Cryptonote developers
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2014-03-03 22:07:58 +00:00
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#pragma once
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#include <set>
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#include <unordered_map>
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#include <unordered_set>
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2014-08-13 10:51:37 +00:00
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2014-03-03 22:07:58 +00:00
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#include <boost/utility.hpp>
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2014-08-13 10:51:37 +00:00
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// multi index
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#include <boost/multi_index_container.hpp>
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#include <boost/multi_index/hashed_index.hpp>
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#include <boost/multi_index/ordered_index.hpp>
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#include <boost/multi_index/member.hpp>
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#include "Common/Util.h"
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#include "Common/int-util.h"
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#include "Common/ObserverManager.h"
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#include "crypto/hash.h"
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2015-07-30 15:22:07 +00:00
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#include "CryptoNoteCore/CryptoNoteBasic.h"
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#include "CryptoNoteCore/CryptoNoteBasicImpl.h"
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#include "CryptoNoteCore/Currency.h"
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#include "CryptoNoteCore/ITimeProvider.h"
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#include "CryptoNoteCore/ITransactionValidator.h"
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#include "CryptoNoteCore/ITxPoolObserver.h"
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#include "CryptoNoteCore/VerificationContext.h"
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#include "CryptoNoteCore/BlockchainIndices.h"
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#include <Logging/LoggerRef.h>
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namespace CryptoNote {
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class ISerializer;
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class OnceInTimeInterval {
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public:
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OnceInTimeInterval(unsigned interval, CryptoNote::ITimeProvider& timeProvider)
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: m_interval(interval), m_timeProvider(timeProvider) {
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m_lastWorkedTime = 0;
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}
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template<class functor_t>
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bool call(functor_t functr) {
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time_t now = m_timeProvider.now();
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if (now - m_lastWorkedTime > m_interval) {
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bool res = functr();
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m_lastWorkedTime = m_timeProvider.now();
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return res;
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}
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return true;
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}
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private:
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time_t m_lastWorkedTime;
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unsigned m_interval;
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CryptoNote::ITimeProvider& m_timeProvider;
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};
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using CryptoNote::BlockInfo;
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using namespace boost::multi_index;
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/************************************************************************/
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/* */
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/************************************************************************/
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class tx_memory_pool: boost::noncopyable {
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public:
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tx_memory_pool(
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const CryptoNote::Currency& currency,
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CryptoNote::ITransactionValidator& validator,
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CryptoNote::ITimeProvider& timeProvider,
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Logging::ILogger& log);
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bool addObserver(ITxPoolObserver* observer);
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bool removeObserver(ITxPoolObserver* observer);
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// load/store operations
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bool init(const std::string& config_folder);
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bool deinit();
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bool have_tx(const Crypto::Hash &id) const;
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bool add_tx(const Transaction &tx, const Crypto::Hash &id, size_t blobSize, tx_verification_context& tvc, bool keeped_by_block);
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bool add_tx(const Transaction &tx, tx_verification_context& tvc, bool keeped_by_block);
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//gets tx and remove it from pool
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bool take_tx(const Crypto::Hash &id, Transaction &tx, size_t& blobSize, uint64_t& fee);
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bool on_blockchain_inc(uint64_t new_block_height, const Crypto::Hash& top_block_id);
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bool on_blockchain_dec(uint64_t new_block_height, const Crypto::Hash& top_block_id);
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void lock() const;
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void unlock() const;
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std::unique_lock<std::recursive_mutex> obtainGuard() const;
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bool fill_block_template(Block &bl, size_t median_size, size_t maxCumulativeSize, uint64_t already_generated_coins, size_t &total_size, uint64_t &fee);
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void get_transactions(std::list<Transaction>& txs) const;
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void get_difference(const std::vector<Crypto::Hash>& known_tx_ids, std::vector<Crypto::Hash>& new_tx_ids, std::vector<Crypto::Hash>& deleted_tx_ids) const;
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size_t get_transactions_count() const;
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std::string print_pool(bool short_format) const;
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void on_idle();
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bool getTransactionIdsByPaymentId(const Crypto::Hash& paymentId, std::vector<Crypto::Hash>& transactionIds);
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bool getTransactionIdsByTimestamp(uint64_t timestampBegin, uint64_t timestampEnd, uint32_t transactionsNumberLimit, std::vector<Crypto::Hash>& hashes, uint64_t& transactionsNumberWithinTimestamps);
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template<class t_ids_container, class t_tx_container, class t_missed_container>
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void getTransactions(const t_ids_container& txsIds, t_tx_container& txs, t_missed_container& missedTxs) {
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std::lock_guard<std::recursive_mutex> lock(m_transactions_lock);
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for (const auto& id : txsIds) {
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auto it = m_transactions.find(id);
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if (it == m_transactions.end()) {
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missedTxs.push_back(id);
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} else {
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txs.push_back(it->tx);
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}
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}
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}
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void serialize(ISerializer& s);
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struct TransactionCheckInfo {
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BlockInfo maxUsedBlock;
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BlockInfo lastFailedBlock;
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};
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struct TransactionDetails : public TransactionCheckInfo {
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Crypto::Hash id;
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Transaction tx;
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size_t blobSize;
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uint64_t fee;
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bool keptByBlock;
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time_t receiveTime;
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};
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private:
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struct TransactionPriorityComparator {
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// lhs > hrs
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bool operator()(const TransactionDetails& lhs, const TransactionDetails& rhs) const {
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// price(lhs) = lhs.fee / lhs.blobSize
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// price(lhs) > price(rhs) -->
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// lhs.fee / lhs.blobSize > rhs.fee / rhs.blobSize -->
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// lhs.fee * rhs.blobSize > rhs.fee * lhs.blobSize
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uint64_t lhs_hi, lhs_lo = mul128(lhs.fee, rhs.blobSize, &lhs_hi);
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uint64_t rhs_hi, rhs_lo = mul128(rhs.fee, lhs.blobSize, &rhs_hi);
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return
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// prefer more profitable transactions
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(lhs_hi > rhs_hi) ||
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(lhs_hi == rhs_hi && lhs_lo > rhs_lo) ||
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// prefer smaller
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(lhs_hi == rhs_hi && lhs_lo == rhs_lo && lhs.blobSize < rhs.blobSize) ||
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// prefer older
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(lhs_hi == rhs_hi && lhs_lo == rhs_lo && lhs.blobSize == rhs.blobSize && lhs.receiveTime < rhs.receiveTime);
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}
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};
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typedef hashed_unique<BOOST_MULTI_INDEX_MEMBER(TransactionDetails, Crypto::Hash, id)> main_index_t;
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typedef ordered_non_unique<identity<TransactionDetails>, TransactionPriorityComparator> fee_index_t;
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typedef multi_index_container<TransactionDetails,
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indexed_by<main_index_t, fee_index_t>
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> tx_container_t;
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typedef std::pair<uint64_t, uint64_t> GlobalOutput;
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typedef std::set<GlobalOutput> GlobalOutputsContainer;
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typedef std::unordered_map<Crypto::KeyImage, std::unordered_set<Crypto::Hash> > key_images_container;
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// double spending checking
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bool addTransactionInputs(const Crypto::Hash& id, const Transaction& tx, bool keptByBlock);
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bool haveSpentInputs(const Transaction& tx) const;
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bool removeTransactionInputs(const Crypto::Hash& id, const Transaction& tx, bool keptByBlock);
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tx_container_t::iterator removeTransaction(tx_container_t::iterator i);
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bool removeExpiredTransactions();
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bool is_transaction_ready_to_go(const Transaction& tx, TransactionCheckInfo& txd) const;
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void buildIndices();
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Tools::ObserverManager<ITxPoolObserver> m_observerManager;
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const CryptoNote::Currency& m_currency;
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OnceInTimeInterval m_txCheckInterval;
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mutable std::recursive_mutex m_transactions_lock;
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key_images_container m_spent_key_images;
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GlobalOutputsContainer m_spentOutputs;
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std::string m_config_folder;
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CryptoNote::ITransactionValidator& m_validator;
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CryptoNote::ITimeProvider& m_timeProvider;
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tx_container_t m_transactions;
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tx_container_t::nth_index<1>::type& m_fee_index;
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std::unordered_map<Crypto::Hash, uint64_t> m_recentlyDeletedTransactions;
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Logging::LoggerRef logger;
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PaymentIdIndex m_paymentIdIndex;
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TimestampTransactionsIndex m_timestampIndex;
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};
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}
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