diff options
Diffstat (limited to 'src/cryptonote_core/blockchain.cpp')
| -rw-r--r-- | src/cryptonote_core/blockchain.cpp | 129 |
1 files changed, 96 insertions, 33 deletions
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp index 3db516847..54d8fac31 100644 --- a/src/cryptonote_core/blockchain.cpp +++ b/src/cryptonote_core/blockchain.cpp @@ -156,7 +156,9 @@ static const struct { //------------------------------------------------------------------ Blockchain::Blockchain(tx_memory_pool& tx_pool) : m_db(), m_tx_pool(tx_pool), m_hardfork(NULL), m_timestamps_and_difficulties_height(0), m_current_block_cumul_sz_limit(0), m_current_block_cumul_sz_median(0), - m_enforce_dns_checkpoints(false), m_max_prepare_blocks_threads(4), m_db_blocks_per_sync(1), m_db_sync_mode(db_async), m_db_default_sync(false), m_fast_sync(true), m_show_time_stats(false), m_sync_counter(0), m_cancel(false) + m_enforce_dns_checkpoints(false), m_max_prepare_blocks_threads(4), m_db_blocks_per_sync(1), m_db_sync_mode(db_async), m_db_default_sync(false), m_fast_sync(true), m_show_time_stats(false), m_sync_counter(0), m_cancel(false), + m_difficulty_for_next_block_top_hash(crypto::null_hash), + m_difficulty_for_next_block(1) { LOG_PRINT_L3("Blockchain::" << __func__); } @@ -441,6 +443,53 @@ bool Blockchain::init(BlockchainDB* db, const network_type nettype, bool offline MINFO("Blockchain initialized. last block: " << m_db->height() - 1 << ", " << epee::misc_utils::get_time_interval_string(timestamp_diff) << " time ago, current difficulty: " << get_difficulty_for_next_block()); m_db->block_txn_stop(); + uint64_t num_popped_blocks = 0; + while (true) + { + const uint64_t top_height = m_db->height() - 1; + const crypto::hash top_id = m_db->top_block_hash(); + const block top_block = m_db->get_top_block(); + const uint8_t ideal_hf_version = get_ideal_hard_fork_version(top_height); + if (ideal_hf_version <= 1 || ideal_hf_version == top_block.major_version) + { + if (num_popped_blocks > 0) + MGINFO("Initial popping done, top block: " << top_id << ", top height: " << top_height << ", block version: " << (uint64_t)top_block.major_version); + break; + } + else + { + if (num_popped_blocks == 0) + MGINFO("Current top block " << top_id << " at height " << top_height << " has version " << (uint64_t)top_block.major_version << " which disagrees with the ideal version " << (uint64_t)ideal_hf_version); + if (num_popped_blocks % 100 == 0) + MGINFO("Popping blocks... " << top_height); + ++num_popped_blocks; + block popped_block; + std::vector<transaction> popped_txs; + try + { + m_db->pop_block(popped_block, popped_txs); + } + // anything that could cause this to throw is likely catastrophic, + // so we re-throw + catch (const std::exception& e) + { + MERROR("Error popping block from blockchain: " << e.what()); + throw; + } + catch (...) + { + MERROR("Error popping block from blockchain, throwing!"); + throw; + } + } + } + if (num_popped_blocks > 0) + { + m_timestamps_and_difficulties_height = 0; + m_hardfork->reorganize_from_chain_height(get_current_blockchain_height()); + m_tx_pool.on_blockchain_dec(m_db->height()-1, get_tail_id()); + } + update_next_cumulative_size_limit(); return true; } @@ -584,6 +633,12 @@ block Blockchain::pop_block_from_blockchain() } } } + + m_blocks_longhash_table.clear(); + m_scan_table.clear(); + m_blocks_txs_check.clear(); + m_check_txin_table.clear(); + update_next_cumulative_size_limit(); m_tx_pool.on_blockchain_dec(m_db->height()-1, get_tail_id()); @@ -751,7 +806,17 @@ bool Blockchain::get_block_by_hash(const crypto::hash &h, block &blk, bool *orph difficulty_type Blockchain::get_difficulty_for_next_block() { LOG_PRINT_L3("Blockchain::" << __func__); - CRITICAL_REGION_LOCAL(m_blockchain_lock); + + CRITICAL_REGION_LOCAL(m_difficulty_lock); + // we can call this without the blockchain lock, it might just give us + // something a bit out of date, but that's fine since anything which + // requires the blockchain lock will have acquired it in the first place, + // and it will be unlocked only when called from the getinfo RPC + crypto::hash top_hash = get_tail_id(); + if (top_hash == m_difficulty_for_next_block_top_hash) + return m_difficulty_for_next_block; + + CRITICAL_REGION_LOCAL1(m_blockchain_lock); std::vector<uint64_t> timestamps; std::vector<difficulty_type> difficulties; auto height = m_db->height(); @@ -794,7 +859,10 @@ difficulty_type Blockchain::get_difficulty_for_next_block() m_difficulties = difficulties; } size_t target = get_difficulty_target(); - return next_difficulty(timestamps, difficulties, target); + difficulty_type diff = next_difficulty(timestamps, difficulties, target); + m_difficulty_for_next_block_top_hash = top_hash; + m_difficulty_for_next_block = diff; + return diff; } //------------------------------------------------------------------ // This function removes blocks from the blockchain until it gets to the @@ -1142,6 +1210,12 @@ bool Blockchain::create_block_template(block& b, const account_public_address& m b.prev_id = get_tail_id(); b.timestamp = time(NULL); + uint64_t median_ts; + if (!check_block_timestamp(b, median_ts)) + { + b.timestamp = median_ts; + } + diffic = get_difficulty_for_next_block(); CHECK_AND_ASSERT_MES(diffic, false, "difficulty overhead."); @@ -1903,7 +1977,7 @@ void Blockchain::get_output_key_mask_unlocked(const uint64_t& amount, const uint unlocked = is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first)); } //------------------------------------------------------------------ -bool Blockchain::get_output_distribution(uint64_t amount, uint64_t from_height, uint64_t &start_height, std::vector<uint64_t> &distribution, uint64_t &base) const +bool Blockchain::get_output_distribution(uint64_t amount, uint64_t from_height, uint64_t to_height, uint64_t &start_height, std::vector<uint64_t> &distribution, uint64_t &base) const { // rct outputs don't exist before v3 if (amount == 0) @@ -1924,22 +1998,7 @@ bool Blockchain::get_output_distribution(uint64_t amount, uint64_t from_height, if (from_height > start_height) start_height = from_height; - distribution.clear(); - uint64_t db_height = m_db->height(); - if (start_height >= db_height) - return false; - distribution.resize(db_height - start_height, 0); - bool r = for_all_outputs(amount, [&](uint64_t height) { - CHECK_AND_ASSERT_MES(height >= real_start_height && height <= db_height, false, "Height not in expected range"); - if (height >= start_height) - distribution[height - start_height]++; - else - base++; - return true; - }); - if (!r) - return false; - return true; + return m_db->get_output_distribution(amount, start_height, to_height, distribution, base); } //------------------------------------------------------------------ // This function takes a list of block hashes from another node @@ -2054,7 +2113,7 @@ bool Blockchain::get_blocks(const t_ids_container& block_ids, t_blocks_container //TODO: return type should be void, throw on exception // alternatively, return true only if no transactions missed template<class t_ids_container, class t_tx_container, class t_missed_container> -bool Blockchain::get_transactions_blobs(const t_ids_container& txs_ids, t_tx_container& txs, t_missed_container& missed_txs) const +bool Blockchain::get_transactions_blobs(const t_ids_container& txs_ids, t_tx_container& txs, t_missed_container& missed_txs, bool pruned) const { LOG_PRINT_L3("Blockchain::" << __func__); CRITICAL_REGION_LOCAL(m_blockchain_lock); @@ -2064,7 +2123,9 @@ bool Blockchain::get_transactions_blobs(const t_ids_container& txs_ids, t_tx_con try { cryptonote::blobdata tx; - if (m_db->get_tx_blob(tx_hash, tx)) + if (pruned && m_db->get_pruned_tx_blob(tx_hash, tx)) + txs.push_back(std::move(tx)); + else if (!pruned && m_db->get_tx_blob(tx_hash, tx)) txs.push_back(std::move(tx)); else missed_txs.push_back(tx_hash); @@ -2149,7 +2210,7 @@ bool Blockchain::find_blockchain_supplement(const std::list<crypto::hash>& qbloc // find split point between ours and foreign blockchain (or start at // blockchain height <req_start_block>), and return up to max_count FULL // blocks by reference. -bool Blockchain::find_blockchain_supplement(const uint64_t req_start_block, const std::list<crypto::hash>& qblock_ids, std::list<std::pair<cryptonote::blobdata, std::list<cryptonote::blobdata> > >& blocks, uint64_t& total_height, uint64_t& start_height, size_t max_count) const +bool Blockchain::find_blockchain_supplement(const uint64_t req_start_block, const std::list<crypto::hash>& qblock_ids, std::list<std::pair<cryptonote::blobdata, std::list<cryptonote::blobdata> > >& blocks, uint64_t& total_height, uint64_t& start_height, bool pruned, size_t max_count) const { LOG_PRINT_L3("Blockchain::" << __func__); CRITICAL_REGION_LOCAL(m_blockchain_lock); @@ -2182,7 +2243,7 @@ bool Blockchain::find_blockchain_supplement(const uint64_t req_start_block, cons block b; CHECK_AND_ASSERT_MES(parse_and_validate_block_from_blob(blocks.back().first, b), false, "internal error, invalid block"); std::list<crypto::hash> mis; - get_transactions_blobs(b.tx_hashes, blocks.back().second, mis); + get_transactions_blobs(b.tx_hashes, blocks.back().second, mis, pruned); CHECK_AND_ASSERT_MES(!mis.size(), false, "internal error, transaction from block not found"); size += blocks.back().first.size(); for (const auto &t: blocks.back().second) @@ -2658,6 +2719,7 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc, tools::threadpool& tpool = tools::threadpool::getInstance(); tools::threadpool::waiter waiter; + const auto waiter_guard = epee::misc_utils::create_scope_leave_handler([&]() { waiter.wait(); }); int threads = tpool.get_max_concurrency(); for (const auto& txin : tx.vin) @@ -3127,10 +3189,10 @@ uint64_t Blockchain::get_adjusted_time() const } //------------------------------------------------------------------ //TODO: revisit, has changed a bit on upstream -bool Blockchain::check_block_timestamp(std::vector<uint64_t>& timestamps, const block& b) const +bool Blockchain::check_block_timestamp(std::vector<uint64_t>& timestamps, const block& b, uint64_t& median_ts) const { LOG_PRINT_L3("Blockchain::" << __func__); - uint64_t median_ts = epee::misc_utils::median(timestamps); + median_ts = epee::misc_utils::median(timestamps); if(b.timestamp < median_ts) { @@ -3148,7 +3210,7 @@ bool Blockchain::check_block_timestamp(std::vector<uint64_t>& timestamps, const // true if the block's timestamp is not less than the timestamp of the // median of the selected blocks // false otherwise -bool Blockchain::check_block_timestamp(const block& b) const +bool Blockchain::check_block_timestamp(const block& b, uint64_t& median_ts) const { LOG_PRINT_L3("Blockchain::" << __func__); if(b.timestamp > get_adjusted_time() + CRYPTONOTE_BLOCK_FUTURE_TIME_LIMIT) @@ -3173,7 +3235,7 @@ bool Blockchain::check_block_timestamp(const block& b) const timestamps.push_back(m_db->get_block_timestamp(offset)); } - return check_block_timestamp(timestamps, b); + return check_block_timestamp(timestamps, b, median_ts); } //------------------------------------------------------------------ void Blockchain::return_tx_to_pool(std::vector<transaction> &txs) @@ -4322,9 +4384,9 @@ uint64_t Blockchain::get_difficulty_target() const return get_current_hard_fork_version() < 2 ? DIFFICULTY_TARGET_V1 : DIFFICULTY_TARGET_V2; } -std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t>> Blockchain:: get_output_histogram(const std::vector<uint64_t> &amounts, bool unlocked, uint64_t recent_cutoff) const +std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t>> Blockchain:: get_output_histogram(const std::vector<uint64_t> &amounts, bool unlocked, uint64_t recent_cutoff, uint64_t min_count) const { - return m_db->get_output_histogram(amounts, unlocked, recent_cutoff); + return m_db->get_output_histogram(amounts, unlocked, recent_cutoff, min_count); } std::list<std::pair<Blockchain::block_extended_info,uint64_t>> Blockchain::get_alternative_chains() const @@ -4365,7 +4427,7 @@ void Blockchain::cancel() } #if defined(PER_BLOCK_CHECKPOINT) -static const char expected_block_hashes_hash[] = "4b553162ee4e7af3c53666506591489c68560b9175e6e941dc96c89f96f0e35c"; +static const char expected_block_hashes_hash[] = "59261c03b54bcb21bd463f9fe40a94f40840a12642e9a3b3bfb11b35839a5fe3"; void Blockchain::load_compiled_in_block_hashes() { const bool testnet = m_nettype == TESTNET; @@ -4476,9 +4538,9 @@ bool Blockchain::for_blocks_range(const uint64_t& h1, const uint64_t& h2, std::f return m_db->for_blocks_range(h1, h2, f); } -bool Blockchain::for_all_transactions(std::function<bool(const crypto::hash&, const cryptonote::transaction&)> f) const +bool Blockchain::for_all_transactions(std::function<bool(const crypto::hash&, const cryptonote::transaction&)> f, bool pruned) const { - return m_db->for_all_transactions(f); + return m_db->for_all_transactions(f, pruned); } bool Blockchain::for_all_outputs(std::function<bool(uint64_t amount, const crypto::hash &tx_hash, uint64_t height, size_t tx_idx)> f) const @@ -4493,4 +4555,5 @@ bool Blockchain::for_all_outputs(uint64_t amount, std::function<bool(uint64_t he namespace cryptonote { template bool Blockchain::get_transactions(const std::vector<crypto::hash>&, std::list<transaction>&, std::list<crypto::hash>&) const; +template bool Blockchain::get_transactions_blobs(const std::vector<crypto::hash>&, std::list<cryptonote::blobdata>&, std::list<crypto::hash>&, bool) const; } |