Branch data Line data Source code
1 : : // Copyright (c) 2020-2022 The Bitcoin Core developers
2 : : // Distributed under the MIT software license, see the accompanying
3 : : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 : :
5 : : #include <index/coinstatsindex.h>
6 : :
7 : : #include <arith_uint256.h>
8 : : #include <chain.h>
9 : : #include <chainparams.h>
10 : : #include <coins.h>
11 : : #include <common/args.h>
12 : : #include <consensus/amount.h>
13 : : #include <crypto/muhash.h>
14 : : #include <dbwrapper.h>
15 : : #include <index/base.h>
16 : : #include <interfaces/chain.h>
17 : : #include <interfaces/types.h>
18 : : #include <kernel/coinstats.h>
19 : : #include <logging.h>
20 : : #include <primitives/block.h>
21 : : #include <primitives/transaction.h>
22 : : #include <script/script.h>
23 : : #include <serialize.h>
24 : : #include <uint256.h>
25 : : #include <undo.h>
26 : : #include <util/check.h>
27 : : #include <util/fs.h>
28 : : #include <validation.h>
29 : :
30 : : #include <compare>
31 : : #include <ios>
32 : : #include <limits>
33 : : #include <span>
34 : : #include <string>
35 : : #include <utility>
36 : : #include <vector>
37 : :
38 : : using kernel::ApplyCoinHash;
39 : : using kernel::CCoinsStats;
40 : : using kernel::GetBogoSize;
41 : : using kernel::RemoveCoinHash;
42 : :
43 : : static constexpr uint8_t DB_BLOCK_HASH{'s'};
44 : : static constexpr uint8_t DB_BLOCK_HEIGHT{'t'};
45 : : static constexpr uint8_t DB_MUHASH{'M'};
46 : :
47 : : namespace {
48 : :
49 : : struct DBVal {
50 : : uint256 muhash{uint256::ZERO};
51 : : uint64_t transaction_output_count{0};
52 : : uint64_t bogo_size{0};
53 : : CAmount total_amount{0};
54 : : CAmount total_subsidy{0};
55 : : arith_uint256 total_prevout_spent_amount{0};
56 : : arith_uint256 total_new_outputs_ex_coinbase_amount{0};
57 : : arith_uint256 total_coinbase_amount{0};
58 : : CAmount total_unspendables_genesis_block{0};
59 : : CAmount total_unspendables_bip30{0};
60 : : CAmount total_unspendables_scripts{0};
61 : : CAmount total_unspendables_unclaimed_rewards{0};
62 : :
63 : 0 : SERIALIZE_METHODS(DBVal, obj)
64 : : {
65 : 0 : uint256 prevout_spent, new_outputs, coinbase;
66 : 0 : SER_WRITE(obj, prevout_spent = ArithToUint256(obj.total_prevout_spent_amount));
67 : 0 : SER_WRITE(obj, new_outputs = ArithToUint256(obj.total_new_outputs_ex_coinbase_amount));
68 : 0 : SER_WRITE(obj, coinbase = ArithToUint256(obj.total_coinbase_amount));
69 : :
70 : 0 : READWRITE(obj.muhash);
71 : 0 : READWRITE(obj.transaction_output_count);
72 : 0 : READWRITE(obj.bogo_size);
73 : 0 : READWRITE(obj.total_amount);
74 : 0 : READWRITE(obj.total_subsidy);
75 : 0 : READWRITE(prevout_spent);
76 : 0 : READWRITE(new_outputs);
77 : 0 : READWRITE(coinbase);
78 : 0 : READWRITE(obj.total_unspendables_genesis_block);
79 : 0 : READWRITE(obj.total_unspendables_bip30);
80 : 0 : READWRITE(obj.total_unspendables_scripts);
81 : 0 : READWRITE(obj.total_unspendables_unclaimed_rewards);
82 : :
83 : 0 : SER_READ(obj, obj.total_prevout_spent_amount = UintToArith256(prevout_spent));
84 : 0 : SER_READ(obj, obj.total_new_outputs_ex_coinbase_amount = UintToArith256(new_outputs));
85 : 0 : SER_READ(obj, obj.total_coinbase_amount = UintToArith256(coinbase));
86 : 0 : }
87 : : };
88 : :
89 : : struct DBHeightKey {
90 : : int height;
91 : :
92 : 0 : explicit DBHeightKey(int height_in) : height(height_in) {}
93 : :
94 : : template <typename Stream>
95 : 0 : void Serialize(Stream& s) const
96 : : {
97 : 0 : ser_writedata8(s, DB_BLOCK_HEIGHT);
98 : 0 : ser_writedata32be(s, height);
99 : 0 : }
100 : :
101 : : template <typename Stream>
102 : 0 : void Unserialize(Stream& s)
103 : : {
104 : 0 : const uint8_t prefix{ser_readdata8(s)};
105 [ # # ]: 0 : if (prefix != DB_BLOCK_HEIGHT) {
106 [ # # ]: 0 : throw std::ios_base::failure("Invalid format for coinstatsindex DB height key");
107 : : }
108 : 0 : height = ser_readdata32be(s);
109 : 0 : }
110 : : };
111 : :
112 : : struct DBHashKey {
113 : : uint256 block_hash;
114 : :
115 : 0 : explicit DBHashKey(const uint256& hash_in) : block_hash(hash_in) {}
116 : :
117 : 0 : SERIALIZE_METHODS(DBHashKey, obj)
118 : : {
119 : 0 : uint8_t prefix{DB_BLOCK_HASH};
120 : 0 : READWRITE(prefix);
121 [ # # ]: 0 : if (prefix != DB_BLOCK_HASH) {
122 [ # # ]: 0 : throw std::ios_base::failure("Invalid format for coinstatsindex DB hash key");
123 : : }
124 : :
125 : 0 : READWRITE(obj.block_hash);
126 : 0 : }
127 : : };
128 : :
129 : : }; // namespace
130 : :
131 : : std::unique_ptr<CoinStatsIndex> g_coin_stats_index;
132 : :
133 : 0 : CoinStatsIndex::CoinStatsIndex(std::unique_ptr<interfaces::Chain> chain, size_t n_cache_size, bool f_memory, bool f_wipe)
134 [ # # ]: 0 : : BaseIndex(std::move(chain), "coinstatsindex")
135 : : {
136 : : // An earlier version of the index used "indexes/coinstats" but it contained
137 : : // a bug and is superseded by a fixed version at "indexes/coinstatsindex".
138 : : // The original index is kept around until the next release in case users
139 : : // decide to downgrade their node.
140 [ # # # # : 0 : auto old_path = gArgs.GetDataDirNet() / "indexes" / "coinstats";
# # ]
141 [ # # # # ]: 0 : if (fs::exists(old_path)) {
142 : : // TODO: Change this to deleting the old index with v31.
143 [ # # # # ]: 0 : LogWarning("Old version of coinstatsindex found at %s. This folder can be safely deleted unless you " \
144 : : "plan to downgrade your node to version 29 or lower.", fs::PathToString(old_path));
145 : : }
146 [ # # # # : 0 : fs::path path{gArgs.GetDataDirNet() / "indexes" / "coinstatsindex"};
# # ]
147 [ # # ]: 0 : fs::create_directories(path);
148 : :
149 [ # # # # : 0 : m_db = std::make_unique<CoinStatsIndex::DB>(path / "db", n_cache_size, f_memory, f_wipe);
# # ]
150 : 0 : }
151 : :
152 : 0 : bool CoinStatsIndex::CustomAppend(const interfaces::BlockInfo& block)
153 : : {
154 : 0 : const CAmount block_subsidy{GetBlockSubsidy(block.height, Params().GetConsensus())};
155 : 0 : m_total_subsidy += block_subsidy;
156 : :
157 : : // Ignore genesis block
158 [ # # ]: 0 : if (block.height > 0) {
159 : 0 : uint256 expected_block_hash{*Assert(block.prev_hash)};
160 [ # # ]: 0 : if (m_current_block_hash != expected_block_hash) {
161 [ # # # # ]: 0 : LogError("previous block header belongs to unexpected block %s; expected %s",
162 : : m_current_block_hash.ToString(), expected_block_hash.ToString());
163 : 0 : return false;
164 : : }
165 : :
166 : : // Add the new utxos created from the block
167 [ # # ]: 0 : assert(block.data);
168 [ # # # # ]: 0 : for (size_t i = 0; i < block.data->vtx.size(); ++i) {
169 : 0 : const auto& tx{block.data->vtx.at(i)};
170 [ # # ]: 0 : const bool is_coinbase{tx->IsCoinBase()};
171 : :
172 : : // Skip duplicate txid coinbase transactions (BIP30).
173 [ # # # # ]: 0 : if (is_coinbase && IsBIP30Unspendable(block.hash, block.height)) {
174 : 0 : m_total_unspendables_bip30 += block_subsidy;
175 : 0 : continue;
176 : : }
177 : :
178 [ # # # # ]: 0 : for (uint32_t j = 0; j < tx->vout.size(); ++j) {
179 : 0 : const CTxOut& out{tx->vout[j]};
180 : 0 : const Coin coin{out, block.height, is_coinbase};
181 [ # # ]: 0 : const COutPoint outpoint{tx->GetHash(), j};
182 : :
183 : : // Skip unspendable coins
184 [ # # ]: 0 : if (coin.out.scriptPubKey.IsUnspendable()) {
185 : 0 : m_total_unspendables_scripts += coin.out.nValue;
186 : 0 : continue;
187 : : }
188 : :
189 [ # # ]: 0 : ApplyCoinHash(m_muhash, outpoint, coin);
190 : :
191 [ # # ]: 0 : if (is_coinbase) {
192 : 0 : m_total_coinbase_amount += coin.out.nValue;
193 : : } else {
194 : 0 : m_total_new_outputs_ex_coinbase_amount += coin.out.nValue;
195 : : }
196 : :
197 : 0 : ++m_transaction_output_count;
198 : 0 : m_total_amount += coin.out.nValue;
199 [ # # ]: 0 : m_bogo_size += GetBogoSize(coin.out.scriptPubKey);
200 : 0 : }
201 : :
202 : : // The coinbase tx has no undo data since no former output is spent
203 [ # # ]: 0 : if (!is_coinbase) {
204 : 0 : const auto& tx_undo{Assert(block.undo_data)->vtxundo.at(i - 1)};
205 : :
206 [ # # # # ]: 0 : for (size_t j = 0; j < tx_undo.vprevout.size(); ++j) {
207 : 0 : const Coin& coin{tx_undo.vprevout[j]};
208 : 0 : const COutPoint outpoint{tx->vin[j].prevout.hash, tx->vin[j].prevout.n};
209 : :
210 : 0 : RemoveCoinHash(m_muhash, outpoint, coin);
211 : :
212 : 0 : m_total_prevout_spent_amount += coin.out.nValue;
213 : :
214 : 0 : --m_transaction_output_count;
215 : 0 : m_total_amount -= coin.out.nValue;
216 : 0 : m_bogo_size -= GetBogoSize(coin.out.scriptPubKey);
217 : : }
218 : : }
219 : : }
220 : : } else {
221 : : // genesis block
222 : 0 : m_total_unspendables_genesis_block += block_subsidy;
223 : : }
224 : :
225 : : // If spent prevouts + block subsidy are still a higher amount than
226 : : // new outputs + coinbase + current unspendable amount this means
227 : : // the miner did not claim the full block reward. Unclaimed block
228 : : // rewards are also unspendable.
229 : 0 : const CAmount temp_total_unspendable_amount{m_total_unspendables_genesis_block + m_total_unspendables_bip30 + m_total_unspendables_scripts + m_total_unspendables_unclaimed_rewards};
230 : 0 : const arith_uint256 unclaimed_rewards{(m_total_prevout_spent_amount + m_total_subsidy) - (m_total_new_outputs_ex_coinbase_amount + m_total_coinbase_amount + temp_total_unspendable_amount)};
231 [ # # ]: 0 : assert(unclaimed_rewards <= arith_uint256(std::numeric_limits<CAmount>::max()));
232 : 0 : m_total_unspendables_unclaimed_rewards += static_cast<CAmount>(unclaimed_rewards.GetLow64());
233 : :
234 : 0 : std::pair<uint256, DBVal> value;
235 : 0 : value.first = block.hash;
236 : 0 : value.second.transaction_output_count = m_transaction_output_count;
237 : 0 : value.second.bogo_size = m_bogo_size;
238 : 0 : value.second.total_amount = m_total_amount;
239 : 0 : value.second.total_subsidy = m_total_subsidy;
240 : 0 : value.second.total_prevout_spent_amount = m_total_prevout_spent_amount;
241 : 0 : value.second.total_new_outputs_ex_coinbase_amount = m_total_new_outputs_ex_coinbase_amount;
242 : 0 : value.second.total_coinbase_amount = m_total_coinbase_amount;
243 : 0 : value.second.total_unspendables_genesis_block = m_total_unspendables_genesis_block;
244 : 0 : value.second.total_unspendables_bip30 = m_total_unspendables_bip30;
245 : 0 : value.second.total_unspendables_scripts = m_total_unspendables_scripts;
246 : 0 : value.second.total_unspendables_unclaimed_rewards = m_total_unspendables_unclaimed_rewards;
247 : :
248 : 0 : uint256 out;
249 : 0 : m_muhash.Finalize(out);
250 : 0 : value.second.muhash = out;
251 : :
252 : 0 : m_current_block_hash = block.hash;
253 : :
254 : : // Intentionally do not update DB_MUHASH here so it stays in sync with
255 : : // DB_BEST_BLOCK, and the index is not corrupted if there is an unclean shutdown.
256 : 0 : return m_db->Write(DBHeightKey(block.height), value);
257 : : }
258 : :
259 : 0 : [[nodiscard]] static bool CopyHeightIndexToHashIndex(CDBIterator& db_it, CDBBatch& batch,
260 : : const std::string& index_name, int height)
261 : : {
262 : 0 : DBHeightKey key{height};
263 : 0 : db_it.Seek(key);
264 : :
265 [ # # # # ]: 0 : if (!db_it.GetKey(key) || key.height != height) {
266 : 0 : LogError("unexpected key in %s: expected (%c, %d)",
267 : : index_name, DB_BLOCK_HEIGHT, height);
268 : 0 : return false;
269 : : }
270 : :
271 : 0 : std::pair<uint256, DBVal> value;
272 [ # # ]: 0 : if (!db_it.GetValue(value)) {
273 : 0 : LogError("unable to read value in %s at key (%c, %d)",
274 : : index_name, DB_BLOCK_HEIGHT, height);
275 : 0 : return false;
276 : : }
277 : :
278 : 0 : batch.Write(DBHashKey(value.first), value.second);
279 : 0 : return true;
280 : : }
281 : :
282 : 0 : bool CoinStatsIndex::CustomRemove(const interfaces::BlockInfo& block)
283 : : {
284 : 0 : CDBBatch batch(*m_db);
285 [ # # # # ]: 0 : std::unique_ptr<CDBIterator> db_it(m_db->NewIterator());
286 : :
287 : : // During a reorg, copy the block's hash digest from the height index to the hash index,
288 : : // ensuring it's still accessible after the height index entry is overwritten.
289 [ # # # # ]: 0 : if (!CopyHeightIndexToHashIndex(*db_it, batch, m_name, block.height)) {
290 : : return false;
291 : : }
292 : :
293 [ # # # # ]: 0 : if (!m_db->WriteBatch(batch)) return false;
294 : :
295 [ # # # # ]: 0 : if (!RevertBlock(block)) {
296 : 0 : return false; // failure cause logged internally
297 : : }
298 : :
299 : : return true;
300 : 0 : }
301 : :
302 : 0 : static bool LookUpOne(const CDBWrapper& db, const interfaces::BlockRef& block, DBVal& result)
303 : : {
304 : : // First check if the result is stored under the height index and the value
305 : : // there matches the block hash. This should be the case if the block is on
306 : : // the active chain.
307 : 0 : std::pair<uint256, DBVal> read_out;
308 [ # # ]: 0 : if (!db.Read(DBHeightKey(block.height), read_out)) {
309 : : return false;
310 : : }
311 [ # # ]: 0 : if (read_out.first == block.hash) {
312 : 0 : result = std::move(read_out.second);
313 : 0 : return true;
314 : : }
315 : :
316 : : // If value at the height index corresponds to an different block, the
317 : : // result will be stored in the hash index.
318 : 0 : return db.Read(DBHashKey(block.hash), result);
319 : : }
320 : :
321 : 0 : std::optional<CCoinsStats> CoinStatsIndex::LookUpStats(const CBlockIndex& block_index) const
322 : : {
323 : 0 : CCoinsStats stats{block_index.nHeight, block_index.GetBlockHash()};
324 : 0 : stats.index_used = true;
325 : :
326 : 0 : DBVal entry;
327 [ # # ]: 0 : if (!LookUpOne(*m_db, {block_index.GetBlockHash(), block_index.nHeight}, entry)) {
328 : 0 : return std::nullopt;
329 : : }
330 : :
331 : 0 : stats.hashSerialized = entry.muhash;
332 : 0 : stats.nTransactionOutputs = entry.transaction_output_count;
333 : 0 : stats.nBogoSize = entry.bogo_size;
334 : 0 : stats.total_amount = entry.total_amount;
335 : 0 : stats.total_subsidy = entry.total_subsidy;
336 : 0 : stats.total_prevout_spent_amount = entry.total_prevout_spent_amount;
337 : 0 : stats.total_new_outputs_ex_coinbase_amount = entry.total_new_outputs_ex_coinbase_amount;
338 : 0 : stats.total_coinbase_amount = entry.total_coinbase_amount;
339 : 0 : stats.total_unspendables_genesis_block = entry.total_unspendables_genesis_block;
340 : 0 : stats.total_unspendables_bip30 = entry.total_unspendables_bip30;
341 : 0 : stats.total_unspendables_scripts = entry.total_unspendables_scripts;
342 : 0 : stats.total_unspendables_unclaimed_rewards = entry.total_unspendables_unclaimed_rewards;
343 : :
344 : 0 : return stats;
345 : : }
346 : :
347 : 0 : bool CoinStatsIndex::CustomInit(const std::optional<interfaces::BlockRef>& block)
348 : : {
349 [ # # ]: 0 : if (!m_db->Read(DB_MUHASH, m_muhash)) {
350 : : // Check that the cause of the read failure is that the key does not
351 : : // exist. Any other errors indicate database corruption or a disk
352 : : // failure, and starting the index would cause further corruption.
353 [ # # ]: 0 : if (m_db->Exists(DB_MUHASH)) {
354 : 0 : LogError("Cannot read current %s state; index may be corrupted",
355 : : GetName());
356 : 0 : return false;
357 : : }
358 : : }
359 : :
360 [ # # ]: 0 : if (block) {
361 : 0 : DBVal entry;
362 [ # # ]: 0 : if (!LookUpOne(*m_db, *block, entry)) {
363 : 0 : LogError("Cannot read current %s state; index may be corrupted",
364 : : GetName());
365 : 0 : return false;
366 : : }
367 : :
368 : 0 : uint256 out;
369 : 0 : m_muhash.Finalize(out);
370 [ # # ]: 0 : if (entry.muhash != out) {
371 : 0 : LogError("Cannot read current %s state; index may be corrupted",
372 : : GetName());
373 : 0 : return false;
374 : : }
375 : :
376 : 0 : m_transaction_output_count = entry.transaction_output_count;
377 : 0 : m_bogo_size = entry.bogo_size;
378 : 0 : m_total_amount = entry.total_amount;
379 : 0 : m_total_subsidy = entry.total_subsidy;
380 : 0 : m_total_prevout_spent_amount = entry.total_prevout_spent_amount;
381 : 0 : m_total_new_outputs_ex_coinbase_amount = entry.total_new_outputs_ex_coinbase_amount;
382 : 0 : m_total_coinbase_amount = entry.total_coinbase_amount;
383 : 0 : m_total_unspendables_genesis_block = entry.total_unspendables_genesis_block;
384 : 0 : m_total_unspendables_bip30 = entry.total_unspendables_bip30;
385 : 0 : m_total_unspendables_scripts = entry.total_unspendables_scripts;
386 : 0 : m_total_unspendables_unclaimed_rewards = entry.total_unspendables_unclaimed_rewards;
387 : 0 : m_current_block_hash = block->hash;
388 : : }
389 : :
390 : : return true;
391 : : }
392 : :
393 : 0 : bool CoinStatsIndex::CustomCommit(CDBBatch& batch)
394 : : {
395 : : // DB_MUHASH should always be committed in a batch together with DB_BEST_BLOCK
396 : : // to prevent an inconsistent state of the DB.
397 : 0 : batch.Write(DB_MUHASH, m_muhash);
398 : 0 : return true;
399 : : }
400 : :
401 : 0 : interfaces::Chain::NotifyOptions CoinStatsIndex::CustomOptions()
402 : : {
403 : 0 : interfaces::Chain::NotifyOptions options;
404 : 0 : options.connect_undo_data = true;
405 : 0 : options.disconnect_data = true;
406 : 0 : options.disconnect_undo_data = true;
407 : 0 : return options;
408 : : }
409 : :
410 : : // Revert a single block as part of a reorg
411 : 0 : bool CoinStatsIndex::RevertBlock(const interfaces::BlockInfo& block)
412 : : {
413 : 0 : std::pair<uint256, DBVal> read_out;
414 : :
415 : : // Ignore genesis block
416 [ # # ]: 0 : if (block.height > 0) {
417 [ # # ]: 0 : if (!m_db->Read(DBHeightKey(block.height - 1), read_out)) {
418 : : return false;
419 : : }
420 : :
421 : 0 : uint256 expected_block_hash{*block.prev_hash};
422 [ # # ]: 0 : if (read_out.first != expected_block_hash) {
423 [ # # # # ]: 0 : LogWarning("previous block header belongs to unexpected block %s; expected %s",
424 : : read_out.first.ToString(), expected_block_hash.ToString());
425 : :
426 [ # # ]: 0 : if (!m_db->Read(DBHashKey(expected_block_hash), read_out)) {
427 [ # # ]: 0 : LogError("previous block header not found; expected %s",
428 : : expected_block_hash.ToString());
429 : 0 : return false;
430 : : }
431 : : }
432 : : }
433 : :
434 : : // Roll back muhash by removing the new UTXOs that were created by the
435 : : // block and reapplying the old UTXOs that were spent by the block
436 [ # # ]: 0 : assert(block.data);
437 [ # # ]: 0 : assert(block.undo_data);
438 [ # # # # ]: 0 : for (size_t i = 0; i < block.data->vtx.size(); ++i) {
439 : 0 : const auto& tx{block.data->vtx.at(i)};
440 [ # # ]: 0 : const bool is_coinbase{tx->IsCoinBase()};
441 : :
442 [ # # # # ]: 0 : if (is_coinbase && IsBIP30Unspendable(block.hash, block.height)) {
443 : 0 : continue;
444 : : }
445 : :
446 [ # # # # ]: 0 : for (uint32_t j = 0; j < tx->vout.size(); ++j) {
447 : 0 : const CTxOut& out{tx->vout[j]};
448 : 0 : const COutPoint outpoint{tx->GetHash(), j};
449 : 0 : const Coin coin{out, block.height, is_coinbase};
450 : :
451 [ # # ]: 0 : if (!coin.out.scriptPubKey.IsUnspendable()) {
452 [ # # ]: 0 : RemoveCoinHash(m_muhash, outpoint, coin);
453 : : }
454 : 0 : }
455 : :
456 : : // The coinbase tx has no undo data since no former output is spent
457 [ # # ]: 0 : if (!is_coinbase) {
458 : 0 : const auto& tx_undo{block.undo_data->vtxundo.at(i - 1)};
459 : :
460 [ # # # # ]: 0 : for (size_t j = 0; j < tx_undo.vprevout.size(); ++j) {
461 : 0 : const Coin& coin{tx_undo.vprevout[j]};
462 : 0 : const COutPoint outpoint{tx->vin[j].prevout.hash, tx->vin[j].prevout.n};
463 : 0 : ApplyCoinHash(m_muhash, outpoint, coin);
464 : : }
465 : : }
466 : : }
467 : :
468 : : // Check that the rolled back muhash is consistent with the DB read out
469 : 0 : uint256 out;
470 : 0 : m_muhash.Finalize(out);
471 : 0 : Assert(read_out.second.muhash == out);
472 : :
473 : : // Apply the other values from the DB to the member variables
474 : 0 : m_transaction_output_count = read_out.second.transaction_output_count;
475 : 0 : m_total_amount = read_out.second.total_amount;
476 : 0 : m_bogo_size = read_out.second.bogo_size;
477 : 0 : m_total_subsidy = read_out.second.total_subsidy;
478 : 0 : m_total_prevout_spent_amount = read_out.second.total_prevout_spent_amount;
479 : 0 : m_total_new_outputs_ex_coinbase_amount = read_out.second.total_new_outputs_ex_coinbase_amount;
480 : 0 : m_total_coinbase_amount = read_out.second.total_coinbase_amount;
481 : 0 : m_total_unspendables_genesis_block = read_out.second.total_unspendables_genesis_block;
482 : 0 : m_total_unspendables_bip30 = read_out.second.total_unspendables_bip30;
483 : 0 : m_total_unspendables_scripts = read_out.second.total_unspendables_scripts;
484 : 0 : m_total_unspendables_unclaimed_rewards = read_out.second.total_unspendables_unclaimed_rewards;
485 : 0 : m_current_block_hash = *block.prev_hash;
486 : :
487 : 0 : return true;
488 : : }
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