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-rw-r--r--src/blockchain_db/blockchain_db.cpp3
-rw-r--r--src/blockchain_db/blockchain_db.h17
-rw-r--r--src/blockchain_db/lmdb/db_lmdb.cpp213
-rw-r--r--src/blockchain_db/lmdb/db_lmdb.h7
-rw-r--r--src/blockchain_db/testdb.h (renamed from tests/unit_tests/testdb.h)9
-rw-r--r--src/blockchain_utilities/blockchain_import.cpp3
-rw-r--r--src/cryptonote_config.h3
-rw-r--r--src/cryptonote_core/blockchain.cpp139
-rw-r--r--src/cryptonote_core/blockchain.h18
-rw-r--r--src/cryptonote_core/cryptonote_core.cpp3
-rw-r--r--src/cryptonote_core/cryptonote_core.h1
-rw-r--r--src/daemon/rpc_command_executor.cpp1
-rw-r--r--src/rpc/core_rpc_server.cpp1
-rw-r--r--src/rpc/core_rpc_server_commands_defs.h2
14 files changed, 385 insertions, 35 deletions
diff --git a/src/blockchain_db/blockchain_db.cpp b/src/blockchain_db/blockchain_db.cpp
index d3eefef6e..041759593 100644
--- a/src/blockchain_db/blockchain_db.cpp
+++ b/src/blockchain_db/blockchain_db.cpp
@@ -197,6 +197,7 @@ void BlockchainDB::add_transaction(const crypto::hash& blk_hash, const transacti
uint64_t BlockchainDB::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
@@ -241,7 +242,7 @@ uint64_t BlockchainDB::add_block( const block& blk
// call out to subclass implementation to add the block & metadata
time1 = epee::misc_utils::get_tick_count();
- add_block(blk, block_weight, cumulative_difficulty, coins_generated, num_rct_outs, blk_hash);
+ add_block(blk, block_weight, long_term_block_weight, cumulative_difficulty, coins_generated, num_rct_outs, blk_hash);
TIME_MEASURE_FINISH(time1);
time_add_block1 += time1;
diff --git a/src/blockchain_db/blockchain_db.h b/src/blockchain_db/blockchain_db.h
index 137d5958a..c3f11ba28 100644
--- a/src/blockchain_db/blockchain_db.h
+++ b/src/blockchain_db/blockchain_db.h
@@ -358,12 +358,14 @@ private:
*
* @param blk the block to be added
* @param block_weight the weight of the block (transactions and all)
+ * @param long_term_block_weight the long term block weight of the block (transactions and all)
* @param cumulative_difficulty the accumulated difficulty after this block
* @param coins_generated the number of coins generated total after this block
* @param blk_hash the hash of the block
*/
virtual void 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
@@ -375,7 +377,7 @@ private:
*
* The subclass implementing this will remove the block data from the top
* block in the chain. The data to be removed is that which was added in
- * BlockchainDB::add_block(const block& blk, size_t block_weight, const difficulty_type& cumulative_difficulty, const uint64_t& coins_generated, const crypto::hash& blk_hash)
+ * BlockchainDB::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 crypto::hash& blk_hash)
*
* If any of this cannot be done, the subclass should throw the corresponding
* subclass of DB_EXCEPTION
@@ -789,6 +791,7 @@ public:
*
* @param blk the block to be added
* @param block_weight the size of the block (transactions and all)
+ * @param long_term_block_weight the long term weight of the block (transactions and all)
* @param cumulative_difficulty the accumulated difficulty after this block
* @param coins_generated the number of coins generated total after this block
* @param txs the transactions in the block
@@ -797,6 +800,7 @@ public:
*/
virtual uint64_t 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
@@ -985,6 +989,17 @@ public:
virtual uint64_t get_block_already_generated_coins(const uint64_t& height) const = 0;
/**
+ * @brief fetch a block's long term weight
+ *
+ * If the block does not exist, the subclass should throw BLOCK_DNE
+ *
+ * @param height the height requested
+ *
+ * @return the long term weight
+ */
+ virtual uint64_t get_block_long_term_weight(const uint64_t& height) const = 0;
+
+ /**
* @brief fetch a block's hash
*
* The subclass should return hash of the block with the
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
diff --git a/src/blockchain_db/lmdb/db_lmdb.h b/src/blockchain_db/lmdb/db_lmdb.h
index c07ab8da5..5764f9ae4 100644
--- a/src/blockchain_db/lmdb/db_lmdb.h
+++ b/src/blockchain_db/lmdb/db_lmdb.h
@@ -225,6 +225,8 @@ public:
virtual uint64_t get_block_already_generated_coins(const uint64_t& height) const;
+ virtual uint64_t get_block_long_term_weight(const uint64_t& height) const;
+
virtual crypto::hash get_block_hash_from_height(const uint64_t& height) const;
virtual std::vector<block> get_blocks_range(const uint64_t& h1, const uint64_t& h2) const;
@@ -292,6 +294,7 @@ public:
virtual uint64_t 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
@@ -341,6 +344,7 @@ private:
virtual void 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
@@ -405,6 +409,9 @@ private:
// migrate from DB version 2 to 3
void migrate_2_3();
+ // migrate from DB version 3 to 4
+ void migrate_3_4();
+
void cleanup_batch();
private:
diff --git a/tests/unit_tests/testdb.h b/src/blockchain_db/testdb.h
index 8f5cf70e8..35dfbe673 100644
--- a/tests/unit_tests/testdb.h
+++ b/src/blockchain_db/testdb.h
@@ -33,9 +33,11 @@
#include <string>
#include <vector>
#include <map>
-#include "gtest/gtest.h"
-#include "blockchain_db/blockchain_db.h"
+#include "blockchain_db.h"
+
+namespace cryptonote
+{
class BaseTestDB: public cryptonote::BlockchainDB {
public:
@@ -73,6 +75,7 @@ public:
virtual cryptonote::difficulty_type get_block_cumulative_difficulty(const uint64_t& height) const { return 10; }
virtual cryptonote::difficulty_type get_block_difficulty(const uint64_t& height) const { return 0; }
virtual uint64_t get_block_already_generated_coins(const uint64_t& height) const { return 10000000000; }
+ virtual uint64_t get_block_long_term_weight(const uint64_t& height) const { return 128; }
virtual crypto::hash get_block_hash_from_height(const uint64_t& height) const { return crypto::hash(); }
virtual std::vector<cryptonote::block> get_blocks_range(const uint64_t& h1, const uint64_t& h2) const { return std::vector<cryptonote::block>(); }
virtual std::vector<crypto::hash> get_hashes_range(const uint64_t& h1, const uint64_t& h2) const { return std::vector<crypto::hash>(); }
@@ -128,6 +131,7 @@ public:
virtual void add_block( const cryptonote::block& blk
, size_t block_weight
+ , uint64_t long_term_block_weight
, const cryptonote::difficulty_type& cumulative_difficulty
, const uint64_t& coins_generated
, uint64_t num_rct_outs
@@ -145,3 +149,4 @@ public:
virtual void prune_outputs(uint64_t amount) {}
};
+}
diff --git a/src/blockchain_utilities/blockchain_import.cpp b/src/blockchain_utilities/blockchain_import.cpp
index 2a8a6f494..e6ec20c3b 100644
--- a/src/blockchain_utilities/blockchain_import.cpp
+++ b/src/blockchain_utilities/blockchain_import.cpp
@@ -485,7 +485,8 @@ int import_from_file(cryptonote::core& core, const std::string& import_file_path
try
{
- core.get_blockchain_storage().get_db().add_block(b, block_weight, cumulative_difficulty, coins_generated, txs);
+ uint64_t long_term_block_weight = core.get_blockchain_storage().get_next_long_term_block_weight(block_weight);
+ core.get_blockchain_storage().get_db().add_block(b, block_weight, long_term_block_weight, cumulative_difficulty, coins_generated, txs);
}
catch (const std::exception& e)
{
diff --git a/src/cryptonote_config.h b/src/cryptonote_config.h
index 93db71705..d6edb23c2 100644
--- a/src/cryptonote_config.h
+++ b/src/cryptonote_config.h
@@ -59,6 +59,8 @@
#define CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 60000 //size of block (bytes) after which reward for block calculated using block size
#define CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1 20000 //size of block (bytes) after which reward for block calculated using block size - before first fork
#define CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5 300000 //size of block (bytes) after which reward for block calculated using block size - second change, from v5
+#define CRYPTONOTE_LONG_TERM_BLOCK_WEIGHT_WINDOW_SIZE 100000 // size in blocks of the long term block weight median window
+#define CRYPTONOTE_SHORT_TERM_BLOCK_WEIGHT_SURGE_FACTOR 50
#define CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE 600
#define CRYPTONOTE_DISPLAY_DECIMAL_POINT 12
// COIN - number of smallest units in one coin
@@ -143,6 +145,7 @@
#define HF_VERSION_ENFORCE_RCT 6
#define HF_VERSION_PER_BYTE_FEE 8
#define HF_VERSION_SMALLER_BP 10
+#define HF_VERSION_LONG_TERM_BLOCK_WEIGHT 10
#define PER_KB_FEE_QUANTIZATION_DECIMALS 8
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index 41357e72e..8b295e304 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -166,6 +166,8 @@ 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_weight_limit(0), m_current_block_cumul_weight_median(0),
m_enforce_dns_checkpoints(false), m_max_prepare_blocks_threads(4), m_db_sync_on_blocks(true), m_db_sync_threshold(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_bytes_to_sync(0), m_cancel(false),
+ m_long_term_block_weights_window(CRYPTONOTE_LONG_TERM_BLOCK_WEIGHT_WINDOW_SIZE),
+ m_long_term_effective_median_block_weight(0),
m_difficulty_for_next_block_top_hash(crypto::null_hash),
m_difficulty_for_next_block(1),
m_btc_valid(false)
@@ -500,7 +502,11 @@ bool Blockchain::init(BlockchainDB* db, const network_type nettype, bool offline
m_tx_pool.on_blockchain_dec(m_db->height()-1, get_tail_id());
}
- update_next_cumulative_weight_limit();
+ if (test_options && test_options->long_term_block_weight_window)
+ m_long_term_block_weights_window = test_options->long_term_block_weight_window;
+
+ if (!update_next_cumulative_weight_limit())
+ return false;
return true;
}
//------------------------------------------------------------------
@@ -685,7 +691,7 @@ block Blockchain::pop_block_from_blockchain()
m_blocks_txs_check.clear();
m_check_txin_table.clear();
- update_next_cumulative_weight_limit();
+ CHECK_AND_ASSERT_THROW_MES(update_next_cumulative_weight_limit(), "Error updating next cumulative weight limit");
m_tx_pool.on_blockchain_dec(m_db->height()-1, get_tail_id());
invalidate_block_template_cache();
@@ -704,7 +710,8 @@ bool Blockchain::reset_and_set_genesis_block(const block& b)
block_verification_context bvc = boost::value_initialized<block_verification_context>();
add_new_block(b, bvc);
- update_next_cumulative_weight_limit();
+ if (!update_next_cumulative_weight_limit())
+ return false;
return bvc.m_added_to_main_chain && !bvc.m_verifivation_failed;
}
//------------------------------------------------------------------
@@ -1202,7 +1209,7 @@ bool Blockchain::validate_miner_transaction(const block& b, size_t cumulative_bl
}
}
- std::vector<size_t> last_blocks_weights;
+ std::vector<uint64_t> last_blocks_weights;
get_last_n_blocks_weights(last_blocks_weights, CRYPTONOTE_REWARD_BLOCKS_WINDOW);
if (!get_block_reward(epee::misc_utils::median(last_blocks_weights), cumulative_block_weight, already_generated_coins, base_reward, version))
{
@@ -1237,7 +1244,7 @@ bool Blockchain::validate_miner_transaction(const block& b, size_t cumulative_bl
}
//------------------------------------------------------------------
// get the block weights of the last <count> blocks, and return by reference <sz>.
-void Blockchain::get_last_n_blocks_weights(std::vector<size_t>& weights, size_t count) const
+void Blockchain::get_last_n_blocks_weights(std::vector<uint64_t>& weights, size_t count) const
{
LOG_PRINT_L3("Blockchain::" << __func__);
CRITICAL_REGION_LOCAL(m_blockchain_lock);
@@ -3083,6 +3090,7 @@ uint64_t Blockchain::get_dynamic_base_fee(uint64_t block_reward, size_t median_b
bool Blockchain::check_fee(size_t tx_weight, uint64_t fee) const
{
const uint8_t version = get_current_hard_fork_version();
+ const uint64_t blockchain_height = m_db->height();
uint64_t median = 0;
uint64_t already_generated_coins = 0;
@@ -3090,7 +3098,7 @@ bool Blockchain::check_fee(size_t tx_weight, uint64_t fee) const
if (version >= HF_VERSION_DYNAMIC_FEE)
{
median = m_current_block_cumul_weight_limit / 2;
- already_generated_coins = m_db->height() ? m_db->get_block_already_generated_coins(m_db->height() - 1) : 0;
+ already_generated_coins = blockchain_height ? m_db->get_block_already_generated_coins(blockchain_height - 1) : 0;
if (!get_block_reward(median, 1, already_generated_coins, base_reward, version))
return false;
}
@@ -3098,7 +3106,8 @@ bool Blockchain::check_fee(size_t tx_weight, uint64_t fee) const
uint64_t needed_fee;
if (version >= HF_VERSION_PER_BYTE_FEE)
{
- uint64_t fee_per_byte = get_dynamic_base_fee(base_reward, median, version);
+ const bool use_long_term_median_in_fee = version >= HF_VERSION_LONG_TERM_BLOCK_WEIGHT;
+ uint64_t fee_per_byte = get_dynamic_base_fee(base_reward, use_long_term_median_in_fee ? m_long_term_effective_median_block_weight : median, version);
MDEBUG("Using " << print_money(fee_per_byte) << "/byte fee");
needed_fee = tx_weight * fee_per_byte;
// quantize fee up to 8 decimals
@@ -3135,6 +3144,7 @@ bool Blockchain::check_fee(size_t tx_weight, uint64_t fee) const
uint64_t Blockchain::get_dynamic_base_fee_estimate(uint64_t grace_blocks) const
{
const uint8_t version = get_current_hard_fork_version();
+ const uint64_t db_height = m_db->height();
if (version < HF_VERSION_DYNAMIC_FEE)
return FEE_PER_KB;
@@ -3143,7 +3153,7 @@ uint64_t Blockchain::get_dynamic_base_fee_estimate(uint64_t grace_blocks) const
grace_blocks = CRYPTONOTE_REWARD_BLOCKS_WINDOW - 1;
const uint64_t min_block_weight = get_min_block_weight(version);
- std::vector<size_t> weights;
+ std::vector<uint64_t> weights;
get_last_n_blocks_weights(weights, CRYPTONOTE_REWARD_BLOCKS_WINDOW - grace_blocks);
weights.reserve(grace_blocks);
for (size_t i = 0; i < grace_blocks; ++i)
@@ -3153,7 +3163,7 @@ uint64_t Blockchain::get_dynamic_base_fee_estimate(uint64_t grace_blocks) const
if(median <= min_block_weight)
median = min_block_weight;
- uint64_t already_generated_coins = m_db->height() ? m_db->get_block_already_generated_coins(m_db->height() - 1) : 0;
+ uint64_t already_generated_coins = db_height ? m_db->get_block_already_generated_coins(db_height - 1) : 0;
uint64_t base_reward;
if (!get_block_reward(median, 1, already_generated_coins, base_reward, version))
{
@@ -3161,7 +3171,8 @@ uint64_t Blockchain::get_dynamic_base_fee_estimate(uint64_t grace_blocks) const
base_reward = BLOCK_REWARD_OVERESTIMATE;
}
- uint64_t fee = get_dynamic_base_fee(base_reward, median, version);
+ const bool use_long_term_median_in_fee = version >= HF_VERSION_LONG_TERM_BLOCK_WEIGHT;
+ uint64_t fee = get_dynamic_base_fee(base_reward, use_long_term_median_in_fee ? m_long_term_effective_median_block_weight : median, version);
const bool per_byte = version < HF_VERSION_PER_BYTE_FEE;
MDEBUG("Estimating " << grace_blocks << "-block fee at " << print_money(fee) << "/" << (per_byte ? "byte" : "kB"));
return fee;
@@ -3658,7 +3669,8 @@ leave:
{
try
{
- new_height = m_db->add_block(bl, block_weight, cumulative_difficulty, already_generated_coins, txs);
+ uint64_t long_term_block_weight = get_next_long_term_block_weight(block_weight);
+ new_height = m_db->add_block(bl, block_weight, long_term_block_weight, cumulative_difficulty, already_generated_coins, txs);
}
catch (const KEY_IMAGE_EXISTS& e)
{
@@ -3684,7 +3696,12 @@ leave:
TIME_MEASURE_FINISH(addblock);
// do this after updating the hard fork state since the weight limit may change due to fork
- update_next_cumulative_weight_limit();
+ if (!update_next_cumulative_weight_limit())
+ {
+ MERROR("Failed to update next cumulative weight limit");
+ pop_block_from_blockchain();
+ return false;
+ }
MINFO("+++++ BLOCK SUCCESSFULLY ADDED" << std::endl << "id:\t" << id << std::endl << "PoW:\t" << proof_of_work << std::endl << "HEIGHT " << new_height-1 << ", difficulty:\t" << current_diffic << std::endl << "block reward: " << print_money(fee_summary + base_reward) << "(" << print_money(base_reward) << " + " << print_money(fee_summary) << "), coinbase_weight: " << coinbase_weight << ", cumulative weight: " << cumulative_block_weight << ", " << block_processing_time << "(" << target_calculating_time << "/" << longhash_calculating_time << ")ms");
if(m_show_time_stats)
@@ -3740,20 +3757,100 @@ bool Blockchain::check_blockchain_pruning()
return m_db->check_pruning();
}
//------------------------------------------------------------------
-bool Blockchain::update_next_cumulative_weight_limit()
+uint64_t Blockchain::get_next_long_term_block_weight(uint64_t block_weight) const
{
- uint64_t full_reward_zone = get_min_block_weight(get_current_hard_fork_version());
+ PERF_TIMER(get_next_long_term_block_weight);
+
+ const uint64_t db_height = m_db->height();
+ const uint64_t nblocks = std::min<uint64_t>(m_long_term_block_weights_window, db_height);
+
+ const uint8_t hf_version = get_current_hard_fork_version();
+ if (hf_version < HF_VERSION_LONG_TERM_BLOCK_WEIGHT)
+ return block_weight;
+
+ std::vector<uint64_t> weights;
+ weights.resize(nblocks);
+ for (uint64_t h = 0; h < nblocks; ++h)
+ weights[h] = m_db->get_block_long_term_weight(db_height - nblocks + h);
+ uint64_t long_term_median = epee::misc_utils::median(weights);
+ uint64_t long_term_effective_median_block_weight = std::max<uint64_t>(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5, long_term_median);
+
+ uint64_t short_term_constraint = long_term_effective_median_block_weight + long_term_effective_median_block_weight * 2 / 5;
+ uint64_t long_term_block_weight = std::min<uint64_t>(block_weight, short_term_constraint);
+
+ return long_term_block_weight;
+}
+//------------------------------------------------------------------
+bool Blockchain::update_next_cumulative_weight_limit(uint64_t *long_term_effective_median_block_weight)
+{
+ PERF_TIMER(update_next_cumulative_weight_limit);
LOG_PRINT_L3("Blockchain::" << __func__);
- std::vector<size_t> weights;
- get_last_n_blocks_weights(weights, CRYPTONOTE_REWARD_BLOCKS_WINDOW);
- uint64_t median = epee::misc_utils::median(weights);
- m_current_block_cumul_weight_median = median;
- if(median <= full_reward_zone)
- median = full_reward_zone;
+ // when we reach this, the last hf version is not yet written to the db
+ const uint64_t db_height = m_db->height();
+ const uint8_t hf_version = get_current_hard_fork_version();
+ uint64_t full_reward_zone = get_min_block_weight(hf_version);
+ uint64_t long_term_block_weight;
+
+ if (hf_version < HF_VERSION_LONG_TERM_BLOCK_WEIGHT)
+ {
+ std::vector<uint64_t> weights;
+ get_last_n_blocks_weights(weights, CRYPTONOTE_REWARD_BLOCKS_WINDOW);
+ m_current_block_cumul_weight_median = epee::misc_utils::median(weights);
+ long_term_block_weight = weights.back();
+ }
+ else
+ {
+ const uint64_t block_weight = m_db->get_block_weight(db_height - 1);
+
+ std::vector<uint64_t> weights, new_weights;
+ uint64_t long_term_median;
+ if (db_height == 1)
+ {
+ long_term_median = CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5;
+ }
+ else
+ {
+ uint64_t nblocks = std::min<uint64_t>(m_long_term_block_weights_window, db_height);
+ if (nblocks == db_height)
+ --nblocks;
+ weights.resize(nblocks);
+ for (uint64_t h = 0; h < nblocks; ++h)
+ weights[h] = m_db->get_block_long_term_weight(db_height - nblocks + h - 1);
+ new_weights = weights;
+ long_term_median = epee::misc_utils::median(weights);
+ }
+
+ m_long_term_effective_median_block_weight = std::max<uint64_t>(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5, long_term_median);
+
+ uint64_t short_term_constraint = m_long_term_effective_median_block_weight + m_long_term_effective_median_block_weight * 2 / 5;
+ long_term_block_weight = std::min<uint64_t>(block_weight, short_term_constraint);
+
+ if (new_weights.empty())
+ new_weights.resize(1);
+ new_weights[0] = long_term_block_weight;
+ long_term_median = epee::misc_utils::median(new_weights);
+ m_long_term_effective_median_block_weight = std::max<uint64_t>(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5, long_term_median);
+ short_term_constraint = m_long_term_effective_median_block_weight + m_long_term_effective_median_block_weight * 2 / 5;
+
+ weights.clear();
+ get_last_n_blocks_weights(weights, CRYPTONOTE_REWARD_BLOCKS_WINDOW);
+
+ uint64_t short_term_median = epee::misc_utils::median(weights);
+ uint64_t effective_median_block_weight = std::min<uint64_t>(std::max<uint64_t>(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5, short_term_median), CRYPTONOTE_SHORT_TERM_BLOCK_WEIGHT_SURGE_FACTOR * m_long_term_effective_median_block_weight);
+
+ m_current_block_cumul_weight_median = effective_median_block_weight;
+ }
+
+ if (m_current_block_cumul_weight_median <= full_reward_zone)
+ m_current_block_cumul_weight_median = full_reward_zone;
+
+ m_current_block_cumul_weight_limit = m_current_block_cumul_weight_median * 2;
+
+ if (long_term_effective_median_block_weight)
+ *long_term_effective_median_block_weight = m_long_term_effective_median_block_weight;
- m_current_block_cumul_weight_limit = median*2;
return true;
}
//------------------------------------------------------------------
diff --git a/src/cryptonote_core/blockchain.h b/src/cryptonote_core/blockchain.h
index c742bec91..92aef1278 100644
--- a/src/cryptonote_core/blockchain.h
+++ b/src/cryptonote_core/blockchain.h
@@ -37,6 +37,7 @@
#include <boost/multi_index/global_fun.hpp>
#include <boost/multi_index/hashed_index.hpp>
#include <boost/multi_index/member.hpp>
+#include <boost/circular_buffer.hpp>
#include <atomic>
#include <functional>
#include <unordered_map>
@@ -631,6 +632,13 @@ namespace cryptonote
uint64_t get_current_cumulative_block_weight_limit() const;
/**
+ * @brief gets the long term block weight for a new block
+ *
+ * @return the long term block weight
+ */
+ uint64_t get_next_long_term_block_weight(uint64_t block_weight) const;
+
+ /**
* @brief gets the block weight median based on recent blocks (same window as for the limit)
*
* @return the median
@@ -994,7 +1002,9 @@ namespace cryptonote
*/
void pop_blocks(uint64_t nblocks);
+#ifndef IN_UNIT_TESTS
private:
+#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;
@@ -1047,6 +1057,8 @@ namespace cryptonote
std::vector<uint64_t> m_timestamps;
std::vector<difficulty_type> m_difficulties;
uint64_t m_timestamps_and_difficulties_height;
+ uint64_t m_long_term_block_weights_window;
+ uint64_t m_long_term_effective_median_block_weight;
epee::critical_section m_difficulty_lock;
crypto::hash m_difficulty_for_next_block_top_hash;
@@ -1280,7 +1292,7 @@ namespace cryptonote
* @param sz return-by-reference the list of weights
* @param count the number of blocks to get weights for
*/
- void get_last_n_blocks_weights(std::vector<size_t>& weights, size_t count) const;
+ void get_last_n_blocks_weights(std::vector<uint64_t>& weights, size_t count) const;
/**
* @brief checks if a transaction is unlocked (its outputs spendable)
@@ -1379,9 +1391,11 @@ namespace cryptonote
/**
* @brief calculate the block weight limit for the next block to be added
*
+ * @param long_term_effective_median_block_weight optionally return that value
+ *
* @return true
*/
- bool update_next_cumulative_weight_limit();
+ bool update_next_cumulative_weight_limit(uint64_t *long_term_effective_median_block_weight = NULL);
void return_tx_to_pool(std::vector<transaction> &txs);
/**
diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp
index 1513bb750..bc01e2435 100644
--- a/src/cryptonote_core/cryptonote_core.cpp
+++ b/src/cryptonote_core/cryptonote_core.cpp
@@ -602,7 +602,8 @@ namespace cryptonote
const std::pair<uint8_t, uint64_t> regtest_hard_forks[3] = {std::make_pair(1, 0), std::make_pair(Blockchain::get_hard_fork_heights(MAINNET).back().version, 1), std::make_pair(0, 0)};
const cryptonote::test_options regtest_test_options = {
- regtest_hard_forks
+ regtest_hard_forks,
+ 0
};
const difficulty_type fixed_difficulty = command_line::get_arg(vm, arg_fixed_difficulty);
r = m_blockchain_storage.init(db.release(), m_nettype, m_offline, regtest ? &regtest_test_options : test_options, fixed_difficulty, get_checkpoints);
diff --git a/src/cryptonote_core/cryptonote_core.h b/src/cryptonote_core/cryptonote_core.h
index 4810fc891..308924bb9 100644
--- a/src/cryptonote_core/cryptonote_core.h
+++ b/src/cryptonote_core/cryptonote_core.h
@@ -54,6 +54,7 @@ namespace cryptonote
{
struct test_options {
const std::pair<uint8_t, uint64_t> *hard_forks;
+ const size_t long_term_block_weight_window;
};
extern const command_line::arg_descriptor<std::string, false, true, 2> arg_data_dir;
diff --git a/src/daemon/rpc_command_executor.cpp b/src/daemon/rpc_command_executor.cpp
index 839350522..2d85fdd1a 100644
--- a/src/daemon/rpc_command_executor.cpp
+++ b/src/daemon/rpc_command_executor.cpp
@@ -79,6 +79,7 @@ namespace {
<< "POW hash: " << header.pow_hash << std::endl
<< "block size: " << header.block_size << std::endl
<< "block weight: " << header.block_weight << std::endl
+ << "long term weight: " << header.long_term_weight << std::endl
<< "num txes: " << header.num_txes << std::endl
<< "reward: " << cryptonote::print_money(header.reward);
}
diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index b524273bf..eae8cc531 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -1322,6 +1322,7 @@ namespace cryptonote
response.block_size = response.block_weight = m_core.get_blockchain_storage().get_db().get_block_weight(height);
response.num_txes = blk.tx_hashes.size();
response.pow_hash = fill_pow_hash ? string_tools::pod_to_hex(get_block_longhash(blk, height)) : "";
+ response.long_term_weight = m_core.get_blockchain_storage().get_db().get_block_long_term_weight(height);
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
diff --git a/src/rpc/core_rpc_server_commands_defs.h b/src/rpc/core_rpc_server_commands_defs.h
index dfad5d6a7..e52e4fc67 100644
--- a/src/rpc/core_rpc_server_commands_defs.h
+++ b/src/rpc/core_rpc_server_commands_defs.h
@@ -1172,6 +1172,7 @@ namespace cryptonote
uint64_t block_weight;
uint64_t num_txes;
std::string pow_hash;
+ uint64_t long_term_weight;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(major_version)
@@ -1190,6 +1191,7 @@ namespace cryptonote
KV_SERIALIZE_OPT(block_weight, (uint64_t)0)
KV_SERIALIZE(num_txes)
KV_SERIALIZE(pow_hash)
+ KV_SERIALIZE_OPT(long_term_weight, (uint64_t)0)
END_KV_SERIALIZE_MAP()
};