Merge pull request #5524
06b8f29 blockchain: keep alternative blocks in LMDB (moneromooo-monero)This commit is contained in:
luigi1111
commit
4b76656f5c
@ -129,6 +129,15 @@ struct tx_data_t
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};
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#pragma pack(pop)
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struct alt_block_data_t
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{
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uint64_t height;
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uint64_t cumulative_weight;
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uint64_t cumulative_difficulty_low;
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uint64_t cumulative_difficulty_high;
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uint64_t already_generated_coins;
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};
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/**
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* @brief a struct containing txpool per transaction metadata
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*/
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@ -1543,8 +1552,45 @@ public:
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*
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* @param: sz the block size
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*/
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virtual void add_max_block_size(uint64_t sz) = 0;
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/**
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* @brief add a new alternative block
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*
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* @param: blkid the block hash
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* @param: data: the metadata for the block
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* @param: blob: the block's blob
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*/
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virtual void add_alt_block(const crypto::hash &blkid, const cryptonote::alt_block_data_t &data, const cryptonote::blobdata &blob) = 0;
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/**
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* @brief get an alternative block by hash
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*
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* @param: blkid the block hash
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* @param: data: the metadata for the block
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* @param: blob: the block's blob
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*
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* @return true if the block was found in the alternative blocks list, false otherwise
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*/
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virtual bool get_alt_block(const crypto::hash &blkid, alt_block_data_t *data, cryptonote::blobdata *blob) = 0;
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/**
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* @brief remove an alternative block
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*
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* @param: blkid the block hash
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*/
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virtual void remove_alt_block(const crypto::hash &blkid) = 0;
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/**
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* @brief get the number of alternative blocks stored
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*/
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virtual uint64_t get_alt_block_count() = 0;
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/**
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* @brief drop all alternative blocks
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*/
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virtual void drop_alt_blocks() = 0;
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/**
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* @brief runs a function over all txpool transactions
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*
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@ -1634,6 +1680,23 @@ public:
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virtual bool for_all_outputs(std::function<bool(uint64_t amount, const crypto::hash &tx_hash, uint64_t height, size_t tx_idx)> f) const = 0;
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virtual bool for_all_outputs(uint64_t amount, const std::function<bool(uint64_t height)> &f) const = 0;
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/**
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* @brief runs a function over all alternative blocks stored
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*
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* The subclass should run the passed function for each alt block it has
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* stored, passing (blkid, data, blob) as its parameters.
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*
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* If any call to the function returns false, the subclass should return
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* false. Otherwise, the subclass returns true.
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*
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* The subclass should throw DB_ERROR if any of the expected values are
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* not found. Current implementations simply return false.
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*
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* @param std::function f the function to run
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*
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* @return false if the function returns false for any output, otherwise true
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*/
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virtual bool for_all_alt_blocks(std::function<bool(const crypto::hash &blkid, const alt_block_data_t &data, const cryptonote::blobdata *blob)> f, bool include_blob = false) const = 0;
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//
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@ -194,6 +194,8 @@ namespace
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* txpool_meta txn hash txn metadata
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* txpool_blob txn hash txn blob
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*
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* alt_blocks block hash {block data, block blob}
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*
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* Note: where the data items are of uniform size, DUPFIXED tables have
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* been used to save space. In most of these cases, a dummy "zerokval"
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* key is used when accessing the table; the Key listed above will be
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@ -221,6 +223,8 @@ const char* const LMDB_SPENT_KEYS = "spent_keys";
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const char* const LMDB_TXPOOL_META = "txpool_meta";
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const char* const LMDB_TXPOOL_BLOB = "txpool_blob";
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const char* const LMDB_ALT_BLOCKS = "alt_blocks";
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const char* const LMDB_HF_STARTING_HEIGHTS = "hf_starting_heights";
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const char* const LMDB_HF_VERSIONS = "hf_versions";
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@ -1400,6 +1404,8 @@ void BlockchainLMDB::open(const std::string& filename, const int db_flags)
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lmdb_db_open(txn, LMDB_TXPOOL_META, MDB_CREATE, m_txpool_meta, "Failed to open db handle for m_txpool_meta");
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lmdb_db_open(txn, LMDB_TXPOOL_BLOB, MDB_CREATE, m_txpool_blob, "Failed to open db handle for m_txpool_blob");
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lmdb_db_open(txn, LMDB_ALT_BLOCKS, MDB_CREATE, m_alt_blocks, "Failed to open db handle for m_alt_blocks");
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// this subdb is dropped on sight, so it may not be present when we open the DB.
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// Since we use MDB_CREATE, we'll get an exception if we open read-only and it does not exist.
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// So we don't open for read-only, and also not drop below. It is not used elsewhere.
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@ -1423,6 +1429,7 @@ void BlockchainLMDB::open(const std::string& filename, const int db_flags)
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mdb_set_compare(txn, m_txpool_meta, compare_hash32);
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mdb_set_compare(txn, m_txpool_blob, compare_hash32);
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mdb_set_compare(txn, m_alt_blocks, compare_hash32);
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mdb_set_compare(txn, m_properties, compare_string);
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if (!(mdb_flags & MDB_RDONLY))
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@ -2290,6 +2297,50 @@ bool BlockchainLMDB::for_all_txpool_txes(std::function<bool(const crypto::hash&,
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return ret;
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}
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bool BlockchainLMDB::for_all_alt_blocks(std::function<bool(const crypto::hash&, const alt_block_data_t&, const cryptonote::blobdata*)> f, bool include_blob) const
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{
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LOG_PRINT_L3("BlockchainLMDB::" << __func__);
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check_open();
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TXN_PREFIX_RDONLY();
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RCURSOR(alt_blocks);
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MDB_val k;
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MDB_val v;
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bool ret = true;
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MDB_cursor_op op = MDB_FIRST;
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while (1)
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{
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int result = mdb_cursor_get(m_cur_alt_blocks, &k, &v, op);
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op = MDB_NEXT;
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if (result == MDB_NOTFOUND)
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break;
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if (result)
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throw0(DB_ERROR(lmdb_error("Failed to enumerate alt blocks: ", result).c_str()));
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const crypto::hash &blkid = *(const crypto::hash*)k.mv_data;
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if (v.mv_size < sizeof(alt_block_data_t))
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throw0(DB_ERROR("alt_blocks record is too small"));
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const alt_block_data_t *data = (const alt_block_data_t*)v.mv_data;
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const cryptonote::blobdata *passed_bd = NULL;
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cryptonote::blobdata bd;
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if (include_blob)
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{
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bd.assign(reinterpret_cast<const char*>(v.mv_data) + sizeof(alt_block_data_t), v.mv_size - sizeof(alt_block_data_t));
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passed_bd = &bd;
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}
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if (!f(blkid, *data, passed_bd)) {
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ret = false;
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break;
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}
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}
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TXN_POSTFIX_RDONLY();
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return ret;
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}
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bool BlockchainLMDB::block_exists(const crypto::hash& h, uint64_t *height) const
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{
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LOG_PRINT_L3("BlockchainLMDB::" << __func__);
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@ -4111,6 +4162,110 @@ uint8_t BlockchainLMDB::get_hard_fork_version(uint64_t height) const
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return ret;
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}
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void BlockchainLMDB::add_alt_block(const crypto::hash &blkid, const cryptonote::alt_block_data_t &data, const cryptonote::blobdata &blob)
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{
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LOG_PRINT_L3("BlockchainLMDB::" << __func__);
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check_open();
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mdb_txn_cursors *m_cursors = &m_wcursors;
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CURSOR(alt_blocks)
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MDB_val k = {sizeof(blkid), (void *)&blkid};
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const size_t val_size = sizeof(alt_block_data_t) + blob.size();
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std::unique_ptr<char[]> val(new char[val_size]);
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memcpy(val.get(), &data, sizeof(alt_block_data_t));
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memcpy(val.get() + sizeof(alt_block_data_t), blob.data(), blob.size());
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MDB_val v = {val_size, (void *)val.get()};
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if (auto result = mdb_cursor_put(m_cur_alt_blocks, &k, &v, MDB_NODUPDATA)) {
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if (result == MDB_KEYEXIST)
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throw1(DB_ERROR("Attempting to add alternate block that's already in the db"));
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else
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throw1(DB_ERROR(lmdb_error("Error adding alternate block to db transaction: ", result).c_str()));
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}
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}
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bool BlockchainLMDB::get_alt_block(const crypto::hash &blkid, alt_block_data_t *data, cryptonote::blobdata *blob)
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{
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LOG_PRINT_L3("BlockchainLMDB:: " << __func__);
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check_open();
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TXN_PREFIX_RDONLY();
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RCURSOR(alt_blocks);
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MDB_val_set(k, blkid);
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MDB_val v;
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int result = mdb_cursor_get(m_cur_alt_blocks, &k, &v, MDB_SET);
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if (result == MDB_NOTFOUND)
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return false;
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if (result)
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throw0(DB_ERROR(lmdb_error("Error attempting to retrieve alternate block " + epee::string_tools::pod_to_hex(blkid) + " from the db: ", result).c_str()));
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if (v.mv_size < sizeof(alt_block_data_t))
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throw0(DB_ERROR("Record size is less than expected"));
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const alt_block_data_t *ptr = (const alt_block_data_t*)v.mv_data;
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if (data)
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*data = *ptr;
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if (blob)
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blob->assign((const char*)(ptr + 1), v.mv_size - sizeof(alt_block_data_t));
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TXN_POSTFIX_RDONLY();
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return true;
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}
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void BlockchainLMDB::remove_alt_block(const crypto::hash &blkid)
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{
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LOG_PRINT_L3("BlockchainLMDB::" << __func__);
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check_open();
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mdb_txn_cursors *m_cursors = &m_wcursors;
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CURSOR(alt_blocks)
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MDB_val k = {sizeof(blkid), (void *)&blkid};
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MDB_val v;
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int result = mdb_cursor_get(m_cur_alt_blocks, &k, &v, MDB_SET);
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if (result)
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throw0(DB_ERROR(lmdb_error("Error locating alternate block " + epee::string_tools::pod_to_hex(blkid) + " in the db: ", result).c_str()));
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result = mdb_cursor_del(m_cur_alt_blocks, 0);
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if (result)
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throw0(DB_ERROR(lmdb_error("Error deleting alternate block " + epee::string_tools::pod_to_hex(blkid) + " from the db: ", result).c_str()));
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}
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uint64_t BlockchainLMDB::get_alt_block_count()
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{
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LOG_PRINT_L3("BlockchainLMDB:: " << __func__);
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check_open();
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TXN_PREFIX_RDONLY();
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RCURSOR(alt_blocks);
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MDB_stat db_stats;
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int result = mdb_stat(m_txn, m_alt_blocks, &db_stats);
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uint64_t count = 0;
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if (result != MDB_NOTFOUND)
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{
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if (result)
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throw0(DB_ERROR(lmdb_error("Failed to query m_alt_blocks: ", result).c_str()));
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count = db_stats.ms_entries;
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}
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TXN_POSTFIX_RDONLY();
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return count;
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}
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void BlockchainLMDB::drop_alt_blocks()
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{
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LOG_PRINT_L3("BlockchainLMDB::" << __func__);
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check_open();
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TXN_PREFIX(0);
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auto result = mdb_drop(*txn_ptr, m_alt_blocks, 0);
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if (result)
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throw1(DB_ERROR(lmdb_error("Error dropping alternative blocks: ", result).c_str()));
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TXN_POSTFIX_SUCCESS();
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}
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bool BlockchainLMDB::is_read_only() const
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{
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unsigned int flags;
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@ -67,6 +67,8 @@ typedef struct mdb_txn_cursors
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MDB_cursor *m_txc_txpool_meta;
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MDB_cursor *m_txc_txpool_blob;
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MDB_cursor *m_txc_alt_blocks;
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MDB_cursor *m_txc_hf_versions;
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MDB_cursor *m_txc_properties;
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@ -87,6 +89,7 @@ typedef struct mdb_txn_cursors
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#define m_cur_spent_keys m_cursors->m_txc_spent_keys
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#define m_cur_txpool_meta m_cursors->m_txc_txpool_meta
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#define m_cur_txpool_blob m_cursors->m_txc_txpool_blob
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#define m_cur_alt_blocks m_cursors->m_txc_alt_blocks
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#define m_cur_hf_versions m_cursors->m_txc_hf_versions
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#define m_cur_properties m_cursors->m_txc_properties
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@ -108,6 +111,7 @@ typedef struct mdb_rflags
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bool m_rf_spent_keys;
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bool m_rf_txpool_meta;
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bool m_rf_txpool_blob;
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bool m_rf_alt_blocks;
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bool m_rf_hf_versions;
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bool m_rf_properties;
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} mdb_rflags;
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@ -288,6 +292,12 @@ public:
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virtual bool update_pruning();
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virtual bool check_pruning();
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virtual void add_alt_block(const crypto::hash &blkid, const cryptonote::alt_block_data_t &data, const cryptonote::blobdata &blob);
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virtual bool get_alt_block(const crypto::hash &blkid, alt_block_data_t *data, cryptonote::blobdata *blob);
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virtual void remove_alt_block(const crypto::hash &blkid);
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virtual uint64_t get_alt_block_count();
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virtual void drop_alt_blocks();
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virtual bool for_all_txpool_txes(std::function<bool(const crypto::hash&, const txpool_tx_meta_t&, const cryptonote::blobdata*)> f, bool include_blob = false, bool include_unrelayed_txes = true) const;
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virtual bool for_all_key_images(std::function<bool(const crypto::key_image&)>) const;
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@ -295,6 +305,7 @@ public:
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virtual bool for_all_transactions(std::function<bool(const crypto::hash&, const cryptonote::transaction&)>, bool pruned) const;
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virtual bool for_all_outputs(std::function<bool(uint64_t amount, const crypto::hash &tx_hash, uint64_t height, size_t tx_idx)> f) const;
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virtual bool for_all_outputs(uint64_t amount, const std::function<bool(uint64_t height)> &f) const;
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virtual bool for_all_alt_blocks(std::function<bool(const crypto::hash &blkid, const alt_block_data_t &data, const cryptonote::blobdata *blob)> f, bool include_blob = false) const;
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virtual uint64_t add_block( const std::pair<block, blobdata>& blk
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, size_t block_weight
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@ -452,6 +463,8 @@ private:
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MDB_dbi m_txpool_meta;
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MDB_dbi m_txpool_blob;
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MDB_dbi m_alt_blocks;
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MDB_dbi m_hf_starting_heights;
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MDB_dbi m_hf_versions;
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@ -156,6 +156,13 @@ public:
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virtual uint64_t get_max_block_size() override { return 100000000; }
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virtual void add_max_block_size(uint64_t sz) override { }
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virtual void add_alt_block(const crypto::hash &blkid, const cryptonote::alt_block_data_t &data, const cryptonote::blobdata &blob) override {}
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virtual bool get_alt_block(const crypto::hash &blkid, alt_block_data_t *data, cryptonote::blobdata *blob) override { return false; }
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virtual void remove_alt_block(const crypto::hash &blkid) override {}
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virtual uint64_t get_alt_block_count() override { return 0; }
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virtual void drop_alt_blocks() override {}
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virtual bool for_all_alt_blocks(std::function<bool(const crypto::hash &blkid, const alt_block_data_t &data, const cryptonote::blobdata *blob)> f, bool include_blob = false) const override { return true; }
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};
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}
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@ -731,9 +731,9 @@ bool Blockchain::reset_and_set_genesis_block(const block& b)
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LOG_PRINT_L3("Blockchain::" << __func__);
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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m_timestamps_and_difficulties_height = 0;
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m_alternative_chains.clear();
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invalidate_block_template_cache();
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m_db->reset();
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m_db->drop_alt_blocks();
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m_hardfork->init();
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db_wtxn_guard wtxn_guard(m_db);
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@ -858,10 +858,15 @@ bool Blockchain::get_block_by_hash(const crypto::hash &h, block &blk, bool *orph
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// try to find block in alternative chain
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catch (const BLOCK_DNE& e)
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{
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blocks_ext_by_hash::const_iterator it_alt = m_alternative_chains.find(h);
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if (m_alternative_chains.end() != it_alt)
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alt_block_data_t data;
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cryptonote::blobdata blob;
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if (m_db->get_alt_block(h, &data, &blob))
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{
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blk = it_alt->second.bl;
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if (!cryptonote::parse_and_validate_block_from_blob(blob, blk))
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{
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MERROR("Found block " << h << " in alt chain, but failed to parse it");
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throw std::runtime_error("Found block in alt chain, but failed to parse it");
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}
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if (orphan)
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*orphan = true;
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return true;
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@ -1019,7 +1024,7 @@ bool Blockchain::rollback_blockchain_switching(std::list<block>& original_chain,
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//------------------------------------------------------------------
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// This function attempts to switch to an alternate chain, returning
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// boolean based on success therein.
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bool Blockchain::switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::const_iterator>& alt_chain, bool discard_disconnected_chain)
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bool Blockchain::switch_to_alternative_blockchain(std::list<block_extended_info>& alt_chain, bool discard_disconnected_chain)
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{
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LOG_PRINT_L3("Blockchain::" << __func__);
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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@ -1030,7 +1035,7 @@ bool Blockchain::switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::
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CHECK_AND_ASSERT_MES(alt_chain.size(), false, "switch_to_alternative_blockchain: empty chain passed");
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// verify that main chain has front of alt chain's parent block
|
||||
if (!m_db->block_exists(alt_chain.front()->second.bl.prev_id))
|
||||
if (!m_db->block_exists(alt_chain.front().bl.prev_id))
|
||||
{
|
||||
LOG_ERROR("Attempting to move to an alternate chain, but it doesn't appear to connect to the main chain!");
|
||||
return false;
|
||||
@ -1039,7 +1044,7 @@ bool Blockchain::switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::
|
||||
// pop blocks from the blockchain until the top block is the parent
|
||||
// of the front block of the alt chain.
|
||||
std::list<block> disconnected_chain;
|
||||
while (m_db->top_block_hash() != alt_chain.front()->second.bl.prev_id)
|
||||
while (m_db->top_block_hash() != alt_chain.front().bl.prev_id)
|
||||
{
|
||||
block b = pop_block_from_blockchain();
|
||||
disconnected_chain.push_front(b);
|
||||
@ -1050,11 +1055,11 @@ bool Blockchain::switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::
|
||||
//connecting new alternative chain
|
||||
for(auto alt_ch_iter = alt_chain.begin(); alt_ch_iter != alt_chain.end(); alt_ch_iter++)
|
||||
{
|
||||
auto ch_ent = *alt_ch_iter;
|
||||
const auto &bei = *alt_ch_iter;
|
||||
block_verification_context bvc = boost::value_initialized<block_verification_context>();
|
||||
|
||||
// add block to main chain
|
||||
bool r = handle_block_to_main_chain(ch_ent->second.bl, bvc);
|
||||
bool r = handle_block_to_main_chain(bei.bl, bvc);
|
||||
|
||||
// if adding block to main chain failed, rollback to previous state and
|
||||
// return false
|
||||
@ -1070,14 +1075,18 @@ bool Blockchain::switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::
|
||||
// FIXME: Why do we keep invalid blocks around? Possibly in case we hear
|
||||
// about them again so we can immediately dismiss them, but needs some
|
||||
// looking into.
|
||||
add_block_as_invalid(ch_ent->second, get_block_hash(ch_ent->second.bl));
|
||||
MERROR("The block was inserted as invalid while connecting new alternative chain, block_id: " << get_block_hash(ch_ent->second.bl));
|
||||
m_alternative_chains.erase(*alt_ch_iter++);
|
||||
const crypto::hash blkid = cryptonote::get_block_hash(bei.bl);
|
||||
add_block_as_invalid(bei, blkid);
|
||||
MERROR("The block was inserted as invalid while connecting new alternative chain, block_id: " << blkid);
|
||||
m_db->remove_alt_block(blkid);
|
||||
alt_ch_iter++;
|
||||
|
||||
for(auto alt_ch_to_orph_iter = alt_ch_iter; alt_ch_to_orph_iter != alt_chain.end(); )
|
||||
{
|
||||
add_block_as_invalid((*alt_ch_to_orph_iter)->second, (*alt_ch_to_orph_iter)->first);
|
||||
m_alternative_chains.erase(*alt_ch_to_orph_iter++);
|
||||
const auto &bei = *alt_ch_to_orph_iter++;
|
||||
const crypto::hash blkid = cryptonote::get_block_hash(bei.bl);
|
||||
add_block_as_invalid(bei, blkid);
|
||||
m_db->remove_alt_block(blkid);
|
||||
}
|
||||
return false;
|
||||
}
|
||||
@ -1102,9 +1111,9 @@ bool Blockchain::switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::
|
||||
}
|
||||
|
||||
//removing alt_chain entries from alternative chains container
|
||||
for (auto ch_ent: alt_chain)
|
||||
for (const auto &bei: alt_chain)
|
||||
{
|
||||
m_alternative_chains.erase(ch_ent);
|
||||
m_db->remove_alt_block(cryptonote::get_block_hash(bei.bl));
|
||||
}
|
||||
|
||||
m_hardfork->reorganize_from_chain_height(split_height);
|
||||
@ -1120,7 +1129,7 @@ bool Blockchain::switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::
|
||||
//------------------------------------------------------------------
|
||||
// This function calculates the difficulty target for the block being added to
|
||||
// an alternate chain.
|
||||
difficulty_type Blockchain::get_next_difficulty_for_alternative_chain(const std::list<blocks_ext_by_hash::const_iterator>& alt_chain, block_extended_info& bei) const
|
||||
difficulty_type Blockchain::get_next_difficulty_for_alternative_chain(const std::list<block_extended_info>& alt_chain, block_extended_info& bei) const
|
||||
{
|
||||
if (m_fixed_difficulty)
|
||||
{
|
||||
@ -1138,7 +1147,7 @@ difficulty_type Blockchain::get_next_difficulty_for_alternative_chain(const std:
|
||||
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
||||
|
||||
// Figure out start and stop offsets for main chain blocks
|
||||
size_t main_chain_stop_offset = alt_chain.size() ? alt_chain.front()->second.height : bei.height;
|
||||
size_t main_chain_stop_offset = alt_chain.size() ? alt_chain.front().height : bei.height;
|
||||
size_t main_chain_count = DIFFICULTY_BLOCKS_COUNT - std::min(static_cast<size_t>(DIFFICULTY_BLOCKS_COUNT), alt_chain.size());
|
||||
main_chain_count = std::min(main_chain_count, main_chain_stop_offset);
|
||||
size_t main_chain_start_offset = main_chain_stop_offset - main_chain_count;
|
||||
@ -1156,10 +1165,10 @@ difficulty_type Blockchain::get_next_difficulty_for_alternative_chain(const std:
|
||||
// make sure we haven't accidentally grabbed too many blocks...maybe don't need this check?
|
||||
CHECK_AND_ASSERT_MES((alt_chain.size() + timestamps.size()) <= DIFFICULTY_BLOCKS_COUNT, false, "Internal error, alt_chain.size()[" << alt_chain.size() << "] + vtimestampsec.size()[" << timestamps.size() << "] NOT <= DIFFICULTY_WINDOW[]" << DIFFICULTY_BLOCKS_COUNT);
|
||||
|
||||
for (auto it : alt_chain)
|
||||
for (const auto &bei : alt_chain)
|
||||
{
|
||||
timestamps.push_back(it->second.bl.timestamp);
|
||||
cumulative_difficulties.push_back(it->second.cumulative_difficulty);
|
||||
timestamps.push_back(bei.bl.timestamp);
|
||||
cumulative_difficulties.push_back(bei.cumulative_difficulty);
|
||||
}
|
||||
}
|
||||
// if the alt chain is long enough for the difficulty calc, grab difficulties
|
||||
@ -1171,10 +1180,10 @@ difficulty_type Blockchain::get_next_difficulty_for_alternative_chain(const std:
|
||||
size_t count = 0;
|
||||
size_t max_i = timestamps.size()-1;
|
||||
// get difficulties and timestamps from most recent blocks in alt chain
|
||||
for(auto it: boost::adaptors::reverse(alt_chain))
|
||||
for (const auto bei: boost::adaptors::reverse(alt_chain))
|
||||
{
|
||||
timestamps[max_i - count] = it->second.bl.timestamp;
|
||||
cumulative_difficulties[max_i - count] = it->second.cumulative_difficulty;
|
||||
timestamps[max_i - count] = bei.bl.timestamp;
|
||||
cumulative_difficulties[max_i - count] = bei.cumulative_difficulty;
|
||||
count++;
|
||||
if(count >= DIFFICULTY_BLOCKS_COUNT)
|
||||
break;
|
||||
@ -1393,16 +1402,17 @@ bool Blockchain::create_block_template(block& b, const crypto::hash *from_block,
|
||||
//build alternative subchain, front -> mainchain, back -> alternative head
|
||||
//block is not related with head of main chain
|
||||
//first of all - look in alternative chains container
|
||||
auto it_prev = m_alternative_chains.find(*from_block);
|
||||
alt_block_data_t prev_data;
|
||||
bool parent_in_alt = m_db->get_alt_block(*from_block, &prev_data, NULL);
|
||||
bool parent_in_main = m_db->block_exists(*from_block);
|
||||
if(it_prev == m_alternative_chains.end() && !parent_in_main)
|
||||
if (!parent_in_alt && !parent_in_main)
|
||||
{
|
||||
MERROR("Unknown from block");
|
||||
return false;
|
||||
}
|
||||
|
||||
//we have new block in alternative chain
|
||||
std::list<blocks_ext_by_hash::const_iterator> alt_chain;
|
||||
std::list<block_extended_info> alt_chain;
|
||||
block_verification_context bvc = boost::value_initialized<block_verification_context>();
|
||||
std::vector<uint64_t> timestamps;
|
||||
if (!build_alt_chain(*from_block, alt_chain, timestamps, bvc))
|
||||
@ -1417,7 +1427,7 @@ bool Blockchain::create_block_template(block& b, const crypto::hash *from_block,
|
||||
}
|
||||
else
|
||||
{
|
||||
height = alt_chain.back()->second.height + 1;
|
||||
height = alt_chain.back().height + 1;
|
||||
}
|
||||
b.major_version = m_hardfork->get_ideal_version(height);
|
||||
b.minor_version = m_hardfork->get_ideal_version();
|
||||
@ -1432,14 +1442,14 @@ bool Blockchain::create_block_template(block& b, const crypto::hash *from_block,
|
||||
}
|
||||
else
|
||||
{
|
||||
median_weight = it_prev->second.block_cumulative_weight - it_prev->second.block_cumulative_weight / 20;
|
||||
already_generated_coins = alt_chain.back()->second.already_generated_coins;
|
||||
median_weight = prev_data.cumulative_weight - prev_data.cumulative_weight / 20;
|
||||
already_generated_coins = alt_chain.back().already_generated_coins;
|
||||
}
|
||||
|
||||
// FIXME: consider moving away from block_extended_info at some point
|
||||
block_extended_info bei = boost::value_initialized<block_extended_info>();
|
||||
bei.bl = b;
|
||||
bei.height = alt_chain.size() ? it_prev->second.height + 1 : m_db->get_block_height(*from_block) + 1;
|
||||
bei.height = alt_chain.size() ? prev_data.height + 1 : m_db->get_block_height(*from_block) + 1;
|
||||
|
||||
diffic = get_next_difficulty_for_alternative_chain(alt_chain, bei);
|
||||
}
|
||||
@ -1618,16 +1628,25 @@ bool Blockchain::complete_timestamps_vector(uint64_t start_top_height, std::vect
|
||||
return true;
|
||||
}
|
||||
//------------------------------------------------------------------
|
||||
bool Blockchain::build_alt_chain(const crypto::hash &prev_id, std::list<blocks_ext_by_hash::const_iterator>& alt_chain, std::vector<uint64_t> ×tamps, block_verification_context& bvc) const
|
||||
bool Blockchain::build_alt_chain(const crypto::hash &prev_id, std::list<block_extended_info>& alt_chain, std::vector<uint64_t> ×tamps, block_verification_context& bvc) const
|
||||
{
|
||||
//build alternative subchain, front -> mainchain, back -> alternative head
|
||||
blocks_ext_by_hash::const_iterator alt_it = m_alternative_chains.find(prev_id);
|
||||
cryptonote::alt_block_data_t data;
|
||||
cryptonote::blobdata blob;
|
||||
bool found = m_db->get_alt_block(prev_id, &data, &blob);
|
||||
timestamps.clear();
|
||||
while(alt_it != m_alternative_chains.end())
|
||||
while(found)
|
||||
{
|
||||
alt_chain.push_front(alt_it);
|
||||
timestamps.push_back(alt_it->second.bl.timestamp);
|
||||
alt_it = m_alternative_chains.find(alt_it->second.bl.prev_id);
|
||||
block_extended_info bei;
|
||||
CHECK_AND_ASSERT_MES(cryptonote::parse_and_validate_block_from_blob(blob, bei.bl), false, "Failed to parse alt block");
|
||||
bei.height = data.height;
|
||||
bei.block_cumulative_weight = data.cumulative_weight;
|
||||
bei.cumulative_difficulty = data.cumulative_difficulty_high;
|
||||
bei.cumulative_difficulty = (bei.cumulative_difficulty << 64) + data.cumulative_difficulty_low;
|
||||
bei.already_generated_coins = data.already_generated_coins;
|
||||
timestamps.push_back(bei.bl.timestamp);
|
||||
alt_chain.push_front(std::move(bei));
|
||||
found = m_db->get_alt_block(bei.bl.prev_id, &data, &blob);
|
||||
}
|
||||
|
||||
// if block to be added connects to known blocks that aren't part of the
|
||||
@ -1635,20 +1654,20 @@ bool Blockchain::build_alt_chain(const crypto::hash &prev_id, std::list<blocks_e
|
||||
if(!alt_chain.empty())
|
||||
{
|
||||
// make sure alt chain doesn't somehow start past the end of the main chain
|
||||
CHECK_AND_ASSERT_MES(m_db->height() > alt_chain.front()->second.height, false, "main blockchain wrong height");
|
||||
CHECK_AND_ASSERT_MES(m_db->height() > alt_chain.front().height, false, "main blockchain wrong height");
|
||||
|
||||
// make sure that the blockchain contains the block that should connect
|
||||
// this alternate chain with it.
|
||||
if (!m_db->block_exists(alt_chain.front()->second.bl.prev_id))
|
||||
if (!m_db->block_exists(alt_chain.front().bl.prev_id))
|
||||
{
|
||||
MERROR("alternate chain does not appear to connect to main chain...");
|
||||
return false;
|
||||
}
|
||||
|
||||
// make sure block connects correctly to the main chain
|
||||
auto h = m_db->get_block_hash_from_height(alt_chain.front()->second.height - 1);
|
||||
CHECK_AND_ASSERT_MES(h == alt_chain.front()->second.bl.prev_id, false, "alternative chain has wrong connection to main chain");
|
||||
complete_timestamps_vector(m_db->get_block_height(alt_chain.front()->second.bl.prev_id), timestamps);
|
||||
auto h = m_db->get_block_hash_from_height(alt_chain.front().height - 1);
|
||||
CHECK_AND_ASSERT_MES(h == alt_chain.front().bl.prev_id, false, "alternative chain has wrong connection to main chain");
|
||||
complete_timestamps_vector(m_db->get_block_height(alt_chain.front().bl.prev_id), timestamps);
|
||||
}
|
||||
// if block not associated with known alternate chain
|
||||
else
|
||||
@ -1703,12 +1722,13 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id
|
||||
|
||||
//block is not related with head of main chain
|
||||
//first of all - look in alternative chains container
|
||||
auto it_prev = m_alternative_chains.find(b.prev_id);
|
||||
alt_block_data_t prev_data;
|
||||
bool parent_in_alt = m_db->get_alt_block(b.prev_id, &prev_data, NULL);
|
||||
bool parent_in_main = m_db->block_exists(b.prev_id);
|
||||
if(it_prev != m_alternative_chains.end() || parent_in_main)
|
||||
if (parent_in_alt || parent_in_main)
|
||||
{
|
||||
//we have new block in alternative chain
|
||||
std::list<blocks_ext_by_hash::const_iterator> alt_chain;
|
||||
std::list<block_extended_info> alt_chain;
|
||||
std::vector<uint64_t> timestamps;
|
||||
if (!build_alt_chain(b.prev_id, alt_chain, timestamps, bvc))
|
||||
return false;
|
||||
@ -1716,10 +1736,10 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id
|
||||
// FIXME: consider moving away from block_extended_info at some point
|
||||
block_extended_info bei = boost::value_initialized<block_extended_info>();
|
||||
bei.bl = b;
|
||||
const uint64_t prev_height = alt_chain.size() ? it_prev->second.height : m_db->get_block_height(b.prev_id);
|
||||
const uint64_t prev_height = alt_chain.size() ? prev_data.height : m_db->get_block_height(b.prev_id);
|
||||
bei.height = prev_height + 1;
|
||||
uint64_t block_reward = get_outs_money_amount(b.miner_tx);
|
||||
bei.already_generated_coins = block_reward + (alt_chain.size() ? it_prev->second.already_generated_coins : m_db->get_block_already_generated_coins(prev_height));
|
||||
bei.already_generated_coins = block_reward + (alt_chain.size() ? prev_data.already_generated_coins : m_db->get_block_already_generated_coins(prev_height));
|
||||
|
||||
// verify that the block's timestamp is within the acceptable range
|
||||
// (not earlier than the median of the last X blocks)
|
||||
@ -1763,7 +1783,8 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id
|
||||
difficulty_type main_chain_cumulative_difficulty = m_db->get_block_cumulative_difficulty(m_db->height() - 1);
|
||||
if (alt_chain.size())
|
||||
{
|
||||
bei.cumulative_difficulty = it_prev->second.cumulative_difficulty;
|
||||
bei.cumulative_difficulty = prev_data.cumulative_difficulty_high;
|
||||
bei.cumulative_difficulty = (bei.cumulative_difficulty << 64) + prev_data.cumulative_difficulty_low;
|
||||
}
|
||||
else
|
||||
{
|
||||
@ -1774,15 +1795,21 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id
|
||||
|
||||
// add block to alternate blocks storage,
|
||||
// as well as the current "alt chain" container
|
||||
auto i_res = m_alternative_chains.insert(blocks_ext_by_hash::value_type(id, bei));
|
||||
CHECK_AND_ASSERT_MES(i_res.second, false, "insertion of new alternative block returned as it already exist");
|
||||
alt_chain.push_back(i_res.first);
|
||||
CHECK_AND_ASSERT_MES(!m_db->get_alt_block(id, NULL, NULL), false, "insertion of new alternative block returned as it already exists");
|
||||
cryptonote::alt_block_data_t data;
|
||||
data.height = bei.height;
|
||||
data.cumulative_weight = bei.block_cumulative_weight;
|
||||
data.cumulative_difficulty_low = (bei.cumulative_difficulty & 0xffffffffffffffff).convert_to<uint64_t>();
|
||||
data.cumulative_difficulty_high = ((bei.cumulative_difficulty >> 64) & 0xffffffffffffffff).convert_to<uint64_t>();
|
||||
data.already_generated_coins = bei.already_generated_coins;
|
||||
m_db->add_alt_block(id, data, cryptonote::block_to_blob(bei.bl));
|
||||
alt_chain.push_back(bei);
|
||||
|
||||
// FIXME: is it even possible for a checkpoint to show up not on the main chain?
|
||||
if(is_a_checkpoint)
|
||||
{
|
||||
//do reorganize!
|
||||
MGINFO_GREEN("###### REORGANIZE on height: " << alt_chain.front()->second.height << " of " << m_db->height() - 1 << ", checkpoint is found in alternative chain on height " << bei.height);
|
||||
MGINFO_GREEN("###### REORGANIZE on height: " << alt_chain.front().height << " of " << m_db->height() - 1 << ", checkpoint is found in alternative chain on height " << bei.height);
|
||||
|
||||
bool r = switch_to_alternative_blockchain(alt_chain, true);
|
||||
|
||||
@ -1794,7 +1821,7 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id
|
||||
else if(main_chain_cumulative_difficulty < bei.cumulative_difficulty) //check if difficulty bigger then in main chain
|
||||
{
|
||||
//do reorganize!
|
||||
MGINFO_GREEN("###### REORGANIZE on height: " << alt_chain.front()->second.height << " of " << m_db->height() - 1 << " with cum_difficulty " << m_db->get_block_cumulative_difficulty(m_db->height() - 1) << std::endl << " alternative blockchain size: " << alt_chain.size() << " with cum_difficulty " << bei.cumulative_difficulty);
|
||||
MGINFO_GREEN("###### REORGANIZE on height: " << alt_chain.front().height << " of " << m_db->height() - 1 << " with cum_difficulty " << m_db->get_block_cumulative_difficulty(m_db->height() - 1) << std::endl << " alternative blockchain size: " << alt_chain.size() << " with cum_difficulty " << bei.cumulative_difficulty);
|
||||
|
||||
bool r = switch_to_alternative_blockchain(alt_chain, false);
|
||||
if (r)
|
||||
@ -1814,7 +1841,7 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id
|
||||
//block orphaned
|
||||
bvc.m_marked_as_orphaned = true;
|
||||
MERROR_VER("Block recognized as orphaned and rejected, id = " << id << ", height " << block_height
|
||||
<< ", parent in alt " << (it_prev != m_alternative_chains.end()) << ", parent in main " << parent_in_main
|
||||
<< ", parent in alt " << parent_in_alt << ", parent in main " << parent_in_main
|
||||
<< " (parent " << b.prev_id << ", current top " << get_tail_id() << ", chain height " << get_current_blockchain_height() << ")");
|
||||
}
|
||||
|
||||
@ -1923,11 +1950,20 @@ bool Blockchain::get_alternative_blocks(std::vector<block>& blocks) const
|
||||
LOG_PRINT_L3("Blockchain::" << __func__);
|
||||
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
||||
|
||||
blocks.reserve(m_alternative_chains.size());
|
||||
for (const auto& alt_bl: m_alternative_chains)
|
||||
{
|
||||
blocks.push_back(alt_bl.second.bl);
|
||||
}
|
||||
blocks.reserve(m_db->get_alt_block_count());
|
||||
m_db->for_all_alt_blocks([&blocks](const crypto::hash &blkid, const cryptonote::alt_block_data_t &data, const cryptonote::blobdata *blob) {
|
||||
if (!blob)
|
||||
{
|
||||
MERROR("No blob, but blobs were requested");
|
||||
return false;
|
||||
}
|
||||
cryptonote::block bl;
|
||||
if (cryptonote::parse_and_validate_block_from_blob(*blob, bl))
|
||||
blocks.push_back(std::move(bl));
|
||||
else
|
||||
MERROR("Failed to parse block from blob");
|
||||
return true;
|
||||
}, true);
|
||||
return true;
|
||||
}
|
||||
//------------------------------------------------------------------
|
||||
@ -1935,7 +1971,7 @@ size_t Blockchain::get_alternative_blocks_count() const
|
||||
{
|
||||
LOG_PRINT_L3("Blockchain::" << __func__);
|
||||
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
||||
return m_alternative_chains.size();
|
||||
return m_db->get_alt_block_count();
|
||||
}
|
||||
//------------------------------------------------------------------
|
||||
// This function adds the output specified by <amount, i> to the result_outs container
|
||||
@ -2422,9 +2458,9 @@ bool Blockchain::have_block(const crypto::hash& id) const
|
||||
return true;
|
||||
}
|
||||
|
||||
if(m_alternative_chains.count(id))
|
||||
if(m_db->get_alt_block(id, NULL, NULL))
|
||||
{
|
||||
LOG_PRINT_L2("block " << id << " found in m_alternative_chains");
|
||||
LOG_PRINT_L2("block " << id << " found in alternative chains");
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -4810,11 +4846,35 @@ std::list<std::pair<Blockchain::block_extended_info,std::vector<crypto::hash>>>
|
||||
{
|
||||
std::list<std::pair<Blockchain::block_extended_info,std::vector<crypto::hash>>> chains;
|
||||
|
||||
for (const auto &i: m_alternative_chains)
|
||||
blocks_ext_by_hash alt_blocks;
|
||||
alt_blocks.reserve(m_db->get_alt_block_count());
|
||||
m_db->for_all_alt_blocks([&alt_blocks](const crypto::hash &blkid, const cryptonote::alt_block_data_t &data, const cryptonote::blobdata *blob) {
|
||||
if (!blob)
|
||||
{
|
||||
MERROR("No blob, but blobs were requested");
|
||||
return false;
|
||||
}
|
||||
cryptonote::block bl;
|
||||
block_extended_info bei;
|
||||
if (cryptonote::parse_and_validate_block_from_blob(*blob, bei.bl))
|
||||
{
|
||||
bei.height = data.height;
|
||||
bei.block_cumulative_weight = data.cumulative_weight;
|
||||
bei.cumulative_difficulty = data.cumulative_difficulty_high;
|
||||
bei.cumulative_difficulty = (bei.cumulative_difficulty << 64) + data.cumulative_difficulty_low;
|
||||
bei.already_generated_coins = data.already_generated_coins;
|
||||
alt_blocks.insert(std::make_pair(cryptonote::get_block_hash(bei.bl), std::move(bei)));
|
||||
}
|
||||
else
|
||||
MERROR("Failed to parse block from blob");
|
||||
return true;
|
||||
}, true);
|
||||
|
||||
for (const auto &i: alt_blocks)
|
||||
{
|
||||
const crypto::hash &top = i.first;
|
||||
const crypto::hash top = cryptonote::get_block_hash(i.second.bl);
|
||||
bool found = false;
|
||||
for (const auto &j: m_alternative_chains)
|
||||
for (const auto &j: alt_blocks)
|
||||
{
|
||||
if (j.second.bl.prev_id == top)
|
||||
{
|
||||
@ -4828,7 +4888,7 @@ std::list<std::pair<Blockchain::block_extended_info,std::vector<crypto::hash>>>
|
||||
auto h = i.second.bl.prev_id;
|
||||
chain.push_back(top);
|
||||
blocks_ext_by_hash::const_iterator prev;
|
||||
while ((prev = m_alternative_chains.find(h)) != m_alternative_chains.end())
|
||||
while ((prev = alt_blocks.find(h)) != alt_blocks.end())
|
||||
{
|
||||
chain.push_back(h);
|
||||
h = prev->second.bl.prev_id;
|
||||
|
||||
@ -91,17 +91,6 @@ namespace cryptonote
|
||||
class Blockchain
|
||||
{
|
||||
public:
|
||||
/**
|
||||
* @brief Now-defunct (TODO: remove) struct from in-memory blockchain
|
||||
*/
|
||||
struct transaction_chain_entry
|
||||
{
|
||||
transaction tx;
|
||||
uint64_t m_keeper_block_height;
|
||||
size_t m_blob_size;
|
||||
std::vector<uint64_t> m_global_output_indexes;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief container for passing a block and metadata about it on the blockchain
|
||||
*/
|
||||
@ -109,7 +98,7 @@ namespace cryptonote
|
||||
{
|
||||
block bl; //!< the block
|
||||
uint64_t height; //!< the height of the block in the blockchain
|
||||
size_t block_cumulative_weight; //!< the weight of the block
|
||||
uint64_t block_cumulative_weight; //!< the weight of the block
|
||||
difficulty_type cumulative_difficulty; //!< the accumulated difficulty after that block
|
||||
uint64_t already_generated_coins; //!< the total coins minted after that block
|
||||
};
|
||||
@ -1011,20 +1000,12 @@ namespace cryptonote
|
||||
#endif
|
||||
|
||||
// TODO: evaluate whether or not each of these typedefs are left over from blockchain_storage
|
||||
typedef std::unordered_map<crypto::hash, size_t> blocks_by_id_index;
|
||||
|
||||
typedef std::unordered_map<crypto::hash, transaction_chain_entry> transactions_container;
|
||||
|
||||
typedef std::unordered_set<crypto::key_image> key_images_container;
|
||||
|
||||
typedef std::vector<block_extended_info> blocks_container;
|
||||
|
||||
typedef std::unordered_map<crypto::hash, block_extended_info> blocks_ext_by_hash;
|
||||
|
||||
typedef std::unordered_map<crypto::hash, block> blocks_by_hash;
|
||||
|
||||
typedef std::map<uint64_t, std::vector<std::pair<crypto::hash, size_t>>> outputs_container; //crypto::hash - tx hash, size_t - index of out in transaction
|
||||
|
||||
|
||||
BlockchainDB* m_db;
|
||||
|
||||
@ -1033,7 +1014,6 @@ namespace cryptonote
|
||||
mutable epee::critical_section m_blockchain_lock; // TODO: add here reader/writer lock
|
||||
|
||||
// main chain
|
||||
transactions_container m_transactions;
|
||||
size_t m_current_block_cumul_weight_limit;
|
||||
size_t m_current_block_cumul_weight_median;
|
||||
|
||||
@ -1074,9 +1054,6 @@ namespace cryptonote
|
||||
boost::thread_group m_async_pool;
|
||||
std::unique_ptr<boost::asio::io_service::work> m_async_work_idle;
|
||||
|
||||
// all alternative chains
|
||||
blocks_ext_by_hash m_alternative_chains; // crypto::hash -> block_extended_info
|
||||
|
||||
// some invalid blocks
|
||||
blocks_ext_by_hash m_invalid_blocks; // crypto::hash -> block_extended_info
|
||||
|
||||
@ -1186,7 +1163,7 @@ namespace cryptonote
|
||||
*
|
||||
* @return false if the reorganization fails, otherwise true
|
||||
*/
|
||||
bool switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::const_iterator>& alt_chain, bool discard_disconnected_chain);
|
||||
bool switch_to_alternative_blockchain(std::list<block_extended_info>& alt_chain, bool discard_disconnected_chain);
|
||||
|
||||
/**
|
||||
* @brief removes the most recent block from the blockchain
|
||||
@ -1249,7 +1226,7 @@ namespace cryptonote
|
||||
*
|
||||
* @return true on success, false otherwise
|
||||
*/
|
||||
bool build_alt_chain(const crypto::hash &prev_id, std::list<blocks_ext_by_hash::const_iterator>& alt_chain, std::vector<uint64_t> ×tamps, block_verification_context& bvc) const;
|
||||
bool build_alt_chain(const crypto::hash &prev_id, std::list<block_extended_info>& alt_chain, std::vector<uint64_t> ×tamps, block_verification_context& bvc) const;
|
||||
|
||||
/**
|
||||
* @brief gets the difficulty requirement for a new block on an alternate chain
|
||||
@ -1259,7 +1236,7 @@ namespace cryptonote
|
||||
*
|
||||
* @return the difficulty requirement
|
||||
*/
|
||||
difficulty_type get_next_difficulty_for_alternative_chain(const std::list<blocks_ext_by_hash::const_iterator>& alt_chain, block_extended_info& bei) const;
|
||||
difficulty_type get_next_difficulty_for_alternative_chain(const std::list<block_extended_info>& alt_chain, block_extended_info& bei) const;
|
||||
|
||||
/**
|
||||
* @brief sanity checks a miner transaction before validating an entire block
|
||||
|
||||
@ -208,6 +208,11 @@ namespace cryptonote
|
||||
"is acted upon."
|
||||
, ""
|
||||
};
|
||||
static const command_line::arg_descriptor<bool> arg_keep_alt_blocks = {
|
||||
"keep-alt-blocks"
|
||||
, "Keep alternative blocks on restart"
|
||||
, false
|
||||
};
|
||||
|
||||
//-----------------------------------------------------------------------------------------------
|
||||
core::core(i_cryptonote_protocol* pprotocol):
|
||||
@ -325,6 +330,7 @@ namespace cryptonote
|
||||
command_line::add_arg(desc, arg_prune_blockchain);
|
||||
command_line::add_arg(desc, arg_reorg_notify);
|
||||
command_line::add_arg(desc, arg_block_rate_notify);
|
||||
command_line::add_arg(desc, arg_keep_alt_blocks);
|
||||
|
||||
miner::init_options(desc);
|
||||
BlockchainDB::init_options(desc);
|
||||
@ -457,6 +463,7 @@ namespace cryptonote
|
||||
std::string check_updates_string = command_line::get_arg(vm, arg_check_updates);
|
||||
size_t max_txpool_weight = command_line::get_arg(vm, arg_max_txpool_weight);
|
||||
bool prune_blockchain = command_line::get_arg(vm, arg_prune_blockchain);
|
||||
bool keep_alt_blocks = command_line::get_arg(vm, arg_keep_alt_blocks);
|
||||
|
||||
boost::filesystem::path folder(m_config_folder);
|
||||
if (m_nettype == FAKECHAIN)
|
||||
@ -673,6 +680,9 @@ namespace cryptonote
|
||||
r = m_miner.init(vm, m_nettype);
|
||||
CHECK_AND_ASSERT_MES(r, false, "Failed to initialize miner instance");
|
||||
|
||||
if (!keep_alt_blocks && !m_blockchain_storage.get_db().is_read_only())
|
||||
m_blockchain_storage.get_db().drop_alt_blocks();
|
||||
|
||||
if (prune_blockchain)
|
||||
{
|
||||
// display a message if the blockchain is not pruned yet
|
||||
|
||||
Loading…
Reference in New Issue
Block a user