diff options
Diffstat (limited to 'src/blockchain_db/lmdb/db_lmdb.cpp')
| -rw-r--r-- | src/blockchain_db/lmdb/db_lmdb.cpp | 213 |
1 files changed, 207 insertions, 6 deletions
diff --git a/src/blockchain_db/lmdb/db_lmdb.cpp b/src/blockchain_db/lmdb/db_lmdb.cpp index 8a1303be9..00912a447 100644 --- a/src/blockchain_db/lmdb/db_lmdb.cpp +++ b/src/blockchain_db/lmdb/db_lmdb.cpp @@ -29,6 +29,7 @@ #include <boost/filesystem.hpp> #include <boost/format.hpp> +#include <boost/circular_buffer.hpp> #include <memory> // std::unique_ptr #include <cstring> // memcpy @@ -53,7 +54,7 @@ using epee::string_tools::pod_to_hex; using namespace crypto; // Increase when the DB structure changes -#define VERSION 3 +#define VERSION 4 namespace { @@ -277,7 +278,7 @@ typedef struct mdb_block_info_old crypto::hash bi_hash; } mdb_block_info_old; -typedef struct mdb_block_info +typedef struct mdb_block_info_2 { uint64_t bi_height; uint64_t bi_timestamp; @@ -286,7 +287,21 @@ typedef struct mdb_block_info difficulty_type bi_diff; crypto::hash bi_hash; uint64_t bi_cum_rct; -} mdb_block_info; +} mdb_block_info_2; + +typedef struct mdb_block_info_3 +{ + uint64_t bi_height; + uint64_t bi_timestamp; + uint64_t bi_coins; + uint64_t bi_weight; // a size_t really but we need 32-bit compat + difficulty_type bi_diff; + crypto::hash bi_hash; + uint64_t bi_cum_rct; + uint64_t bi_long_term_block_weight; +} mdb_block_info_3; + +typedef mdb_block_info_3 mdb_block_info; typedef struct blk_height { crypto::hash bh_hash; @@ -694,7 +709,7 @@ estim: return threshold_size; } -void BlockchainLMDB::add_block(const block& blk, size_t block_weight, const difficulty_type& cumulative_difficulty, const uint64_t& coins_generated, +void BlockchainLMDB::add_block(const block& blk, size_t block_weight, uint64_t long_term_block_weight, const difficulty_type& cumulative_difficulty, const uint64_t& coins_generated, uint64_t num_rct_outs, const crypto::hash& blk_hash) { LOG_PRINT_L3("BlockchainLMDB::" << __func__); @@ -754,6 +769,7 @@ void BlockchainLMDB::add_block(const block& blk, size_t block_weight, const diff const mdb_block_info *bi_prev = (const mdb_block_info*)h.mv_data; bi.bi_cum_rct += bi_prev->bi_cum_rct; } + bi.bi_long_term_block_weight = long_term_block_weight; MDB_val_set(val, bi); result = mdb_cursor_put(m_cur_block_info, (MDB_val *)&zerokval, &val, MDB_APPENDDUP); @@ -2486,6 +2502,29 @@ uint64_t BlockchainLMDB::get_block_already_generated_coins(const uint64_t& heigh return ret; } +uint64_t BlockchainLMDB::get_block_long_term_weight(const uint64_t& height) const +{ + LOG_PRINT_L3("BlockchainLMDB::" << __func__); + check_open(); + + TXN_PREFIX_RDONLY(); + RCURSOR(block_info); + + MDB_val_set(result, height); + auto get_result = mdb_cursor_get(m_cur_block_info, (MDB_val *)&zerokval, &result, MDB_GET_BOTH); + if (get_result == MDB_NOTFOUND) + { + throw0(BLOCK_DNE(std::string("Attempt to get block long term weight from height ").append(boost::lexical_cast<std::string>(height)).append(" failed -- block info not in db").c_str())); + } + else if (get_result) + throw0(DB_ERROR("Error attempting to retrieve a long term block weight from the db")); + + mdb_block_info *bi = (mdb_block_info *)result.mv_data; + uint64_t ret = bi->bi_long_term_block_weight; + TXN_POSTFIX_RDONLY(); + return ret; +} + crypto::hash BlockchainLMDB::get_block_hash_from_height(const uint64_t& height) const { LOG_PRINT_L3("BlockchainLMDB::" << __func__); @@ -3524,7 +3563,7 @@ void BlockchainLMDB::block_txn_abort() } } -uint64_t BlockchainLMDB::add_block(const block& blk, size_t block_weight, const difficulty_type& cumulative_difficulty, const uint64_t& coins_generated, +uint64_t BlockchainLMDB::add_block(const block& blk, size_t block_weight, uint64_t long_term_block_weight, const difficulty_type& cumulative_difficulty, const uint64_t& coins_generated, const std::vector<transaction>& txs) { LOG_PRINT_L3("BlockchainLMDB::" << __func__); @@ -3543,7 +3582,7 @@ uint64_t BlockchainLMDB::add_block(const block& blk, size_t block_weight, const try { - BlockchainDB::add_block(blk, block_weight, cumulative_difficulty, coins_generated, txs); + BlockchainDB::add_block(blk, block_weight, long_term_block_weight, cumulative_difficulty, coins_generated, txs); } catch (const DB_ERROR_TXN_START& e) { @@ -4768,6 +4807,166 @@ void BlockchainLMDB::migrate_2_3() txn.commit(); } +void BlockchainLMDB::migrate_3_4() +{ + LOG_PRINT_L3("BlockchainLMDB::" << __func__); + uint64_t i; + int result; + mdb_txn_safe txn(false); + MDB_val k, v; + char *ptr; + bool past_long_term_weight = false; + + MGINFO_YELLOW("Migrating blockchain from DB version 3 to 4 - this may take a while:"); + + do { + LOG_PRINT_L1("migrating block info:"); + + result = mdb_txn_begin(m_env, NULL, 0, txn); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", result).c_str())); + + MDB_stat db_stats; + if ((result = mdb_stat(txn, m_blocks, &db_stats))) + throw0(DB_ERROR(lmdb_error("Failed to query m_blocks: ", result).c_str())); + const uint64_t blockchain_height = db_stats.ms_entries; + + boost::circular_buffer<uint64_t> long_term_block_weights(CRYPTONOTE_LONG_TERM_BLOCK_WEIGHT_WINDOW_SIZE); + + /* the block_info table name is the same but the old version and new version + * have incompatible data. Create a new table. We want the name to be similar + * to the old name so that it will occupy the same location in the DB. + */ + MDB_dbi o_block_info = m_block_info; + lmdb_db_open(txn, "block_infn", MDB_INTEGERKEY | MDB_CREATE | MDB_DUPSORT | MDB_DUPFIXED, m_block_info, "Failed to open db handle for block_infn"); + mdb_set_dupsort(txn, m_block_info, compare_uint64); + + + MDB_cursor *c_blocks; + result = mdb_cursor_open(txn, m_blocks, &c_blocks); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to open a cursor for blocks: ", result).c_str())); + + MDB_cursor *c_old, *c_cur; + i = 0; + while(1) { + if (!(i % 1000)) { + if (i) { + LOGIF(el::Level::Info) { + std::cout << i << " / " << blockchain_height << " \r" << std::flush; + } + txn.commit(); + result = mdb_txn_begin(m_env, NULL, 0, txn); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", result).c_str())); + } + result = mdb_cursor_open(txn, m_block_info, &c_cur); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to open a cursor for block_infn: ", result).c_str())); + result = mdb_cursor_open(txn, o_block_info, &c_old); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to open a cursor for block_info: ", result).c_str())); + result = mdb_cursor_open(txn, m_blocks, &c_blocks); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to open a cursor for blocks: ", result).c_str())); + if (!i) { + MDB_stat db_stat; + result = mdb_stat(txn, m_block_info, &db_stats); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to query m_block_info: ", result).c_str())); + i = db_stats.ms_entries; + } + } + result = mdb_cursor_get(c_old, &k, &v, MDB_NEXT); + if (result == MDB_NOTFOUND) { + txn.commit(); + break; + } + else if (result) + throw0(DB_ERROR(lmdb_error("Failed to get a record from block_info: ", result).c_str())); + const mdb_block_info_2 *bi_old = (const mdb_block_info_2*)v.mv_data; + mdb_block_info_3 bi; + bi.bi_height = bi_old->bi_height; + bi.bi_timestamp = bi_old->bi_timestamp; + bi.bi_coins = bi_old->bi_coins; + bi.bi_weight = bi_old->bi_weight; + bi.bi_diff = bi_old->bi_diff; + bi.bi_hash = bi_old->bi_hash; + bi.bi_cum_rct = bi_old->bi_cum_rct; + + // get block major version to determine which rule is in place + if (!past_long_term_weight) + { + MDB_val_copy<uint64_t> kb(bi.bi_height); + MDB_val vb; + result = mdb_cursor_get(c_blocks, &kb, &vb, MDB_SET); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to query m_blocks: ", result).c_str())); + if (vb.mv_size == 0) + throw0(DB_ERROR("Invalid data from m_blocks")); + const uint8_t block_major_version = *((const uint8_t*)vb.mv_data); + if (block_major_version >= HF_VERSION_LONG_TERM_BLOCK_WEIGHT) + past_long_term_weight = true; + } + + uint64_t long_term_block_weight; + if (past_long_term_weight) + { + std::vector<uint64_t> weights(long_term_block_weights.begin(), long_term_block_weights.end()); + uint64_t long_term_effective_block_median_weight = std::max<uint64_t>(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5, epee::misc_utils::median(weights)); + long_term_block_weight = std::min<uint64_t>(bi.bi_weight, long_term_effective_block_median_weight + long_term_effective_block_median_weight * 2 / 5); + } + else + { + long_term_block_weight = bi.bi_weight; + } + long_term_block_weights.push_back(long_term_block_weight); + bi.bi_long_term_block_weight = long_term_block_weight; + + MDB_val_set(nv, bi); + result = mdb_cursor_put(c_cur, (MDB_val *)&zerokval, &nv, MDB_APPENDDUP); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to put a record into block_infn: ", result).c_str())); + /* we delete the old records immediately, so the overall DB and mapsize should not grow. + * This is a little slower than just letting mdb_drop() delete it all at the end, but + * it saves a significant amount of disk space. + */ + result = mdb_cursor_del(c_old, 0); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to delete a record from block_info: ", result).c_str())); + i++; + } + + result = mdb_txn_begin(m_env, NULL, 0, txn); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", result).c_str())); + /* Delete the old table */ + result = mdb_drop(txn, o_block_info, 1); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to delete old block_info table: ", result).c_str())); + + RENAME_DB("block_infn"); + mdb_dbi_close(m_env, m_block_info); + + lmdb_db_open(txn, "block_info", MDB_INTEGERKEY | MDB_CREATE | MDB_DUPSORT | MDB_DUPFIXED, m_block_info, "Failed to open db handle for block_infn"); + mdb_set_dupsort(txn, m_block_info, compare_uint64); + + txn.commit(); + } while(0); + + uint32_t version = 4; + v.mv_data = (void *)&version; + v.mv_size = sizeof(version); + MDB_val_str(vk, "version"); + result = mdb_txn_begin(m_env, NULL, 0, txn); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", result).c_str())); + result = mdb_put(txn, m_properties, &vk, &v, 0); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to update version for the db: ", result).c_str())); + txn.commit(); +} + void BlockchainLMDB::migrate(const uint32_t oldversion) { if (oldversion < 1) @@ -4776,6 +4975,8 @@ void BlockchainLMDB::migrate(const uint32_t oldversion) migrate_1_2(); if (oldversion < 3) migrate_2_3(); + if (oldversion < 4) + migrate_3_4(); } } // namespace cryptonote |