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-rw-r--r--.travis.yml2
-rw-r--r--doc/release-notes.md9
-rw-r--r--src/bench/ccoins_caching.cpp4
-rw-r--r--src/bitcoin-tx.cpp26
-rw-r--r--src/coins.cpp248
-rw-r--r--src/coins.h349
-rw-r--r--src/consensus/tx_verify.cpp18
-rw-r--r--src/dbwrapper.h43
-rw-r--r--src/hash.cpp41
-rw-r--r--src/hash.h36
-rw-r--r--src/init.cpp10
-rw-r--r--src/net_processing.cpp5
-rw-r--r--src/policy/policy.cpp4
-rw-r--r--src/qt/transactiondesc.cpp7
-rw-r--r--src/rest.cpp27
-rw-r--r--src/rpc/blockchain.cpp83
-rw-r--r--src/rpc/rawtransaction.cpp44
-rw-r--r--src/test/coins_tests.cpp561
-rw-r--r--src/test/hash_tests.cpp17
-rw-r--r--src/test/script_P2SH_tests.cpp5
-rw-r--r--src/test/sigopcount_tests.cpp2
-rw-r--r--src/test/test_bitcoin_fuzzy.cpp4
-rw-r--r--src/test/transaction_tests.cpp21
-rw-r--r--src/txdb.cpp171
-rw-r--r--src/txdb.h24
-rw-r--r--src/txmempool.cpp51
-rw-r--r--src/txmempool.h35
-rw-r--r--src/undo.h84
-rw-r--r--src/validation.cpp219
-rw-r--r--src/validation.h4
-rwxr-xr-xtest/functional/blockchain.py10
31 files changed, 1109 insertions, 1055 deletions
diff --git a/.travis.yml b/.travis.yml
index 97bb475e4b..a9b246536e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -69,7 +69,7 @@ script:
- ./configure --cache-file=../config.cache $BITCOIN_CONFIG_ALL $BITCOIN_CONFIG || ( cat config.log && false)
- make $MAKEJOBS $GOAL || ( echo "Build failure. Verbose build follows." && make $GOAL V=1 ; false )
- export LD_LIBRARY_PATH=$TRAVIS_BUILD_DIR/depends/$HOST/lib
- - if [ "$RUN_TESTS" = "true" ]; then make $MAKEJOBS check VERBOSE=1; fi
+ - if [ "$RUN_TESTS" = "true" ]; then travis_wait 30 make $MAKEJOBS check VERBOSE=1; fi
- if [ "$TRAVIS_EVENT_TYPE" = "cron" ]; then extended="--extended --exclude pruning"; fi
- if [ "$RUN_TESTS" = "true" ]; then test/functional/test_runner.py --coverage --quiet ${extended}; fi
after_script:
diff --git a/doc/release-notes.md b/doc/release-notes.md
index af792118d6..075c7c3911 100644
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -36,6 +36,15 @@ Notable changes
Low-level RPC changes
---------------------
+- The new database model no longer stores information about transaction
+ versions of unspent outputs. This means that:
+ - The `gettxout` RPC no longer has a `version` field in the response.
+ - The `gettxoutsetinfo` RPC reports `hash_serialized_2` instead of `hash_serialized`,
+ which does not commit to the transaction versions of unspent outputs, but does
+ commit to the height and coinbase information.
+ - The `getutxos` REST path no longer reports the `txvers` field in JSON format,
+ and always reports 0 for transaction versions in the binary format
+
- Error codes have been updated to be more accurate for the following error cases:
- `getblock` now returns RPC_MISC_ERROR if the block can't be found on disk (for
example if the block has been pruned). Previously returned RPC_INTERNAL_ERROR.
diff --git a/src/bench/ccoins_caching.cpp b/src/bench/ccoins_caching.cpp
index 1e8e3d462f..5aab3381fd 100644
--- a/src/bench/ccoins_caching.cpp
+++ b/src/bench/ccoins_caching.cpp
@@ -35,14 +35,14 @@ SetupDummyInputs(CBasicKeyStore& keystoreRet, CCoinsViewCache& coinsRet)
dummyTransactions[0].vout[0].scriptPubKey << ToByteVector(key[0].GetPubKey()) << OP_CHECKSIG;
dummyTransactions[0].vout[1].nValue = 50 * CENT;
dummyTransactions[0].vout[1].scriptPubKey << ToByteVector(key[1].GetPubKey()) << OP_CHECKSIG;
- coinsRet.ModifyCoins(dummyTransactions[0].GetHash())->FromTx(dummyTransactions[0], 0);
+ AddCoins(coinsRet, dummyTransactions[0], 0);
dummyTransactions[1].vout.resize(2);
dummyTransactions[1].vout[0].nValue = 21 * CENT;
dummyTransactions[1].vout[0].scriptPubKey = GetScriptForDestination(key[2].GetPubKey().GetID());
dummyTransactions[1].vout[1].nValue = 22 * CENT;
dummyTransactions[1].vout[1].scriptPubKey = GetScriptForDestination(key[3].GetPubKey().GetID());
- coinsRet.ModifyCoins(dummyTransactions[1].GetHash())->FromTx(dummyTransactions[1], 0);
+ AddCoins(coinsRet, dummyTransactions[1], 0);
return dummyTransactions;
}
diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp
index 45738b5df8..cf280f485c 100644
--- a/src/bitcoin-tx.cpp
+++ b/src/bitcoin-tx.cpp
@@ -556,24 +556,26 @@ static void MutateTxSign(CMutableTransaction& tx, const std::string& flagStr)
if (nOut < 0)
throw std::runtime_error("vout must be positive");
+ COutPoint out(txid, nOut);
std::vector<unsigned char> pkData(ParseHexUV(prevOut["scriptPubKey"], "scriptPubKey"));
CScript scriptPubKey(pkData.begin(), pkData.end());
{
- CCoinsModifier coins = view.ModifyCoins(txid);
- if (coins->IsAvailable(nOut) && coins->vout[nOut].scriptPubKey != scriptPubKey) {
+ const Coin& coin = view.AccessCoin(out);
+ if (!coin.IsSpent() && coin.out.scriptPubKey != scriptPubKey) {
std::string err("Previous output scriptPubKey mismatch:\n");
- err = err + ScriptToAsmStr(coins->vout[nOut].scriptPubKey) + "\nvs:\n"+
+ err = err + ScriptToAsmStr(coin.out.scriptPubKey) + "\nvs:\n"+
ScriptToAsmStr(scriptPubKey);
throw std::runtime_error(err);
}
- if ((unsigned int)nOut >= coins->vout.size())
- coins->vout.resize(nOut+1);
- coins->vout[nOut].scriptPubKey = scriptPubKey;
- coins->vout[nOut].nValue = 0;
+ Coin newcoin;
+ newcoin.out.scriptPubKey = scriptPubKey;
+ newcoin.out.nValue = 0;
if (prevOut.exists("amount")) {
- coins->vout[nOut].nValue = AmountFromValue(prevOut["amount"]);
+ newcoin.out.nValue = AmountFromValue(prevOut["amount"]);
}
+ newcoin.nHeight = 1;
+ view.AddCoin(out, std::move(newcoin), true);
}
// if redeemScript given and private keys given,
@@ -595,13 +597,13 @@ static void MutateTxSign(CMutableTransaction& tx, const std::string& flagStr)
// Sign what we can:
for (unsigned int i = 0; i < mergedTx.vin.size(); i++) {
CTxIn& txin = mergedTx.vin[i];
- const CCoins* coins = view.AccessCoins(txin.prevout.hash);
- if (!coins || !coins->IsAvailable(txin.prevout.n)) {
+ const Coin& coin = view.AccessCoin(txin.prevout);
+ if (coin.IsSpent()) {
fComplete = false;
continue;
}
- const CScript& prevPubKey = coins->vout[txin.prevout.n].scriptPubKey;
- const CAmount& amount = coins->vout[txin.prevout.n].nValue;
+ const CScript& prevPubKey = coin.out.scriptPubKey;
+ const CAmount& amount = coin.out.nValue;
SignatureData sigdata;
// Only sign SIGHASH_SINGLE if there's a corresponding output:
diff --git a/src/coins.cpp b/src/coins.cpp
index b2e33abf33..5b7c562678 100644
--- a/src/coins.cpp
+++ b/src/coins.cpp
@@ -4,174 +4,126 @@
#include "coins.h"
+#include "consensus/consensus.h"
#include "memusage.h"
#include "random.h"
#include <assert.h>
-/**
- * calculate number of bytes for the bitmask, and its number of non-zero bytes
- * each bit in the bitmask represents the availability of one output, but the
- * availabilities of the first two outputs are encoded separately
- */
-void CCoins::CalcMaskSize(unsigned int &nBytes, unsigned int &nNonzeroBytes) const {
- unsigned int nLastUsedByte = 0;
- for (unsigned int b = 0; 2+b*8 < vout.size(); b++) {
- bool fZero = true;
- for (unsigned int i = 0; i < 8 && 2+b*8+i < vout.size(); i++) {
- if (!vout[2+b*8+i].IsNull()) {
- fZero = false;
- continue;
- }
- }
- if (!fZero) {
- nLastUsedByte = b + 1;
- nNonzeroBytes++;
- }
- }
- nBytes += nLastUsedByte;
-}
-
-bool CCoins::Spend(uint32_t nPos)
-{
- if (nPos >= vout.size() || vout[nPos].IsNull())
- return false;
- vout[nPos].SetNull();
- Cleanup();
- return true;
-}
-
-bool CCoinsView::GetCoins(const uint256 &txid, CCoins &coins) const { return false; }
-bool CCoinsView::HaveCoins(const uint256 &txid) const { return false; }
+bool CCoinsView::GetCoin(const COutPoint &outpoint, Coin &coin) const { return false; }
+bool CCoinsView::HaveCoin(const COutPoint &outpoint) const { return false; }
uint256 CCoinsView::GetBestBlock() const { return uint256(); }
bool CCoinsView::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) { return false; }
CCoinsViewCursor *CCoinsView::Cursor() const { return 0; }
CCoinsViewBacked::CCoinsViewBacked(CCoinsView *viewIn) : base(viewIn) { }
-bool CCoinsViewBacked::GetCoins(const uint256 &txid, CCoins &coins) const { return base->GetCoins(txid, coins); }
-bool CCoinsViewBacked::HaveCoins(const uint256 &txid) const { return base->HaveCoins(txid); }
+bool CCoinsViewBacked::GetCoin(const COutPoint &outpoint, Coin &coin) const { return base->GetCoin(outpoint, coin); }
+bool CCoinsViewBacked::HaveCoin(const COutPoint &outpoint) const { return base->HaveCoin(outpoint); }
uint256 CCoinsViewBacked::GetBestBlock() const { return base->GetBestBlock(); }
void CCoinsViewBacked::SetBackend(CCoinsView &viewIn) { base = &viewIn; }
bool CCoinsViewBacked::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) { return base->BatchWrite(mapCoins, hashBlock); }
CCoinsViewCursor *CCoinsViewBacked::Cursor() const { return base->Cursor(); }
+size_t CCoinsViewBacked::EstimateSize() const { return base->EstimateSize(); }
-SaltedTxidHasher::SaltedTxidHasher() : k0(GetRand(std::numeric_limits<uint64_t>::max())), k1(GetRand(std::numeric_limits<uint64_t>::max())) {}
+SaltedOutpointHasher::SaltedOutpointHasher() : k0(GetRand(std::numeric_limits<uint64_t>::max())), k1(GetRand(std::numeric_limits<uint64_t>::max())) {}
-CCoinsViewCache::CCoinsViewCache(CCoinsView *baseIn) : CCoinsViewBacked(baseIn), hasModifier(false), cachedCoinsUsage(0) { }
-
-CCoinsViewCache::~CCoinsViewCache()
-{
- assert(!hasModifier);
-}
+CCoinsViewCache::CCoinsViewCache(CCoinsView *baseIn) : CCoinsViewBacked(baseIn), cachedCoinsUsage(0) {}
size_t CCoinsViewCache::DynamicMemoryUsage() const {
return memusage::DynamicUsage(cacheCoins) + cachedCoinsUsage;
}
-CCoinsMap::const_iterator CCoinsViewCache::FetchCoins(const uint256 &txid) const {
- CCoinsMap::iterator it = cacheCoins.find(txid);
+CCoinsMap::iterator CCoinsViewCache::FetchCoin(const COutPoint &outpoint) const {
+ CCoinsMap::iterator it = cacheCoins.find(outpoint);
if (it != cacheCoins.end())
return it;
- CCoins tmp;
- if (!base->GetCoins(txid, tmp))
+ Coin tmp;
+ if (!base->GetCoin(outpoint, tmp))
return cacheCoins.end();
- CCoinsMap::iterator ret = cacheCoins.insert(std::make_pair(txid, CCoinsCacheEntry())).first;
- tmp.swap(ret->second.coins);
- if (ret->second.coins.IsPruned()) {
- // The parent only has an empty entry for this txid; we can consider our
+ CCoinsMap::iterator ret = cacheCoins.emplace(std::piecewise_construct, std::forward_as_tuple(outpoint), std::forward_as_tuple(std::move(tmp))).first;
+ if (ret->second.coin.IsSpent()) {
+ // The parent only has an empty entry for this outpoint; we can consider our
// version as fresh.
ret->second.flags = CCoinsCacheEntry::FRESH;
}
- cachedCoinsUsage += ret->second.coins.DynamicMemoryUsage();
+ cachedCoinsUsage += ret->second.coin.DynamicMemoryUsage();
return ret;
}
-bool CCoinsViewCache::GetCoins(const uint256 &txid, CCoins &coins) const {
- CCoinsMap::const_iterator it = FetchCoins(txid);
+bool CCoinsViewCache::GetCoin(const COutPoint &outpoint, Coin &coin) const {
+ CCoinsMap::const_iterator it = FetchCoin(outpoint);
if (it != cacheCoins.end()) {
- coins = it->second.coins;
+ coin = it->second.coin;
return true;
}
return false;
}
-CCoinsModifier CCoinsViewCache::ModifyCoins(const uint256 &txid) {
- assert(!hasModifier);
- std::pair<CCoinsMap::iterator, bool> ret = cacheCoins.insert(std::make_pair(txid, CCoinsCacheEntry()));
- size_t cachedCoinUsage = 0;
- if (ret.second) {
- if (!base->GetCoins(txid, ret.first->second.coins)) {
- // The parent view does not have this entry; mark it as fresh.
- ret.first->second.coins.Clear();
- ret.first->second.flags = CCoinsCacheEntry::FRESH;
- } else if (ret.first->second.coins.IsPruned()) {
- // The parent view only has a pruned entry for this; mark it as fresh.
- ret.first->second.flags = CCoinsCacheEntry::FRESH;
+void CCoinsViewCache::AddCoin(const COutPoint &outpoint, Coin&& coin, bool possible_overwrite) {
+ assert(!coin.IsSpent());
+ if (coin.out.scriptPubKey.IsUnspendable()) return;
+ CCoinsMap::iterator it;
+ bool inserted;
+ std::tie(it, inserted) = cacheCoins.emplace(std::piecewise_construct, std::forward_as_tuple(outpoint), std::tuple<>());
+ bool fresh = false;
+ if (!inserted) {
+ cachedCoinsUsage -= it->second.coin.DynamicMemoryUsage();
+ }
+ if (!possible_overwrite) {
+ if (!it->second.coin.IsSpent()) {
+ throw std::logic_error("Adding new coin that replaces non-pruned entry");
}
- } else {
- cachedCoinUsage = ret.first->second.coins.DynamicMemoryUsage();
+ fresh = !(it->second.flags & CCoinsCacheEntry::DIRTY);
+ }
+ it->second.coin = std::move(coin);
+ it->second.flags |= CCoinsCacheEntry::DIRTY | (fresh ? CCoinsCacheEntry::FRESH : 0);
+ cachedCoinsUsage += it->second.coin.DynamicMemoryUsage();
+}
+
+void AddCoins(CCoinsViewCache& cache, const CTransaction &tx, int nHeight) {
+ bool fCoinbase = tx.IsCoinBase();
+ const uint256& txid = tx.GetHash();
+ for (size_t i = 0; i < tx.vout.size(); ++i) {
+ // Pass fCoinbase as the possible_overwrite flag to AddCoin, in order to correctly
+ // deal with the pre-BIP30 occurrances of duplicate coinbase transactions.
+ cache.AddCoin(COutPoint(txid, i), Coin(tx.vout[i], nHeight, fCoinbase), fCoinbase);
}
- // Assume that whenever ModifyCoins is called, the entry will be modified.
- ret.first->second.flags |= CCoinsCacheEntry::DIRTY;
- return CCoinsModifier(*this, ret.first, cachedCoinUsage);
}
-/* ModifyNewCoins allows for faster coin modification when creating the new
- * outputs from a transaction. It assumes that BIP 30 (no duplicate txids)
- * applies and has already been tested for (or the test is not required due to
- * BIP 34, height in coinbase). If we can assume BIP 30 then we know that any
- * non-coinbase transaction we are adding to the UTXO must not already exist in
- * the utxo unless it is fully spent. Thus we can check only if it exists DIRTY
- * at the current level of the cache, in which case it is not safe to mark it
- * FRESH (b/c then its spentness still needs to flushed). If it's not dirty and
- * doesn't exist or is pruned in the current cache, we know it either doesn't
- * exist or is pruned in parent caches, which is the definition of FRESH. The
- * exception to this is the two historical violations of BIP 30 in the chain,
- * both of which were coinbases. We do not mark these fresh so we we can ensure
- * that they will still be properly overwritten when spent.
- */
-CCoinsModifier CCoinsViewCache::ModifyNewCoins(const uint256 &txid, bool coinbase) {
- assert(!hasModifier);
- std::pair<CCoinsMap::iterator, bool> ret = cacheCoins.insert(std::make_pair(txid, CCoinsCacheEntry()));
- if (!coinbase) {
- // New coins must not already exist.
- if (!ret.first->second.coins.IsPruned())
- throw std::logic_error("ModifyNewCoins should not find pre-existing coins on a non-coinbase unless they are pruned!");
-
- if (!(ret.first->second.flags & CCoinsCacheEntry::DIRTY)) {
- // If the coin is known to be pruned (have no unspent outputs) in
- // the current view and the cache entry is not dirty, we know the
- // coin also must be pruned in the parent view as well, so it is safe
- // to mark this fresh.
- ret.first->second.flags |= CCoinsCacheEntry::FRESH;
- }
+void CCoinsViewCache::SpendCoin(const COutPoint &outpoint, Coin* moveout) {
+ CCoinsMap::iterator it = FetchCoin(outpoint);
+ if (it == cacheCoins.end()) return;
+ cachedCoinsUsage -= it->second.coin.DynamicMemoryUsage();
+ if (moveout) {
+ *moveout = std::move(it->second.coin);
+ }
+ if (it->second.flags & CCoinsCacheEntry::FRESH) {
+ cacheCoins.erase(it);
+ } else {
+ it->second.flags |= CCoinsCacheEntry::DIRTY;
+ it->second.coin.Clear();
}
- ret.first->second.coins.Clear();
- ret.first->second.flags |= CCoinsCacheEntry::DIRTY;
- return CCoinsModifier(*this, ret.first, 0);
}
-const CCoins* CCoinsViewCache::AccessCoins(const uint256 &txid) const {
- CCoinsMap::const_iterator it = FetchCoins(txid);
+static const Coin coinEmpty;
+
+const Coin& CCoinsViewCache::AccessCoin(const COutPoint &outpoint) const {
+ CCoinsMap::const_iterator it = FetchCoin(outpoint);
if (it == cacheCoins.end()) {
- return NULL;
+ return coinEmpty;
} else {
- return &it->second.coins;
+ return it->second.coin;
}
}
-bool CCoinsViewCache::HaveCoins(const uint256 &txid) const {
- CCoinsMap::const_iterator it = FetchCoins(txid);
- // We're using vtx.empty() instead of IsPruned here for performance reasons,
- // as we only care about the case where a transaction was replaced entirely
- // in a reorganization (which wipes vout entirely, as opposed to spending
- // which just cleans individual outputs).
- return (it != cacheCoins.end() && !it->second.coins.vout.empty());
+bool CCoinsViewCache::HaveCoin(const COutPoint &outpoint) const {
+ CCoinsMap::const_iterator it = FetchCoin(outpoint);
+ return (it != cacheCoins.end() && !it->second.coin.IsSpent());
}
-bool CCoinsViewCache::HaveCoinsInCache(const uint256 &txid) const {
- CCoinsMap::const_iterator it = cacheCoins.find(txid);
+bool CCoinsViewCache::HaveCoinInCache(const COutPoint &outpoint) const {
+ CCoinsMap::const_iterator it = cacheCoins.find(outpoint);
return it != cacheCoins.end();
}
@@ -186,19 +138,18 @@ void CCoinsViewCache::SetBestBlock(const uint256 &hashBlockIn) {
}
bool CCoinsViewCache::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlockIn) {
- assert(!hasModifier);
for (CCoinsMap::iterator it = mapCoins.begin(); it != mapCoins.end();) {
if (it->second.flags & CCoinsCacheEntry::DIRTY) { // Ignore non-dirty entries (optimization).
CCoinsMap::iterator itUs = cacheCoins.find(it->first);
if (itUs == cacheCoins.end()) {
// The parent cache does not have an entry, while the child does
// We can ignore it if it's both FRESH and pruned in the child
- if (!(it->second.flags & CCoinsCacheEntry::FRESH && it->second.coins.IsPruned())) {
+ if (!(it->second.flags & CCoinsCacheEntry::FRESH && it->second.coin.IsSpent())) {
// Otherwise we will need to create it in the parent
// and move the data up and mark it as dirty
CCoinsCacheEntry& entry = cacheCoins[it->first];
- entry.coins.swap(it->second.coins);
- cachedCoinsUsage += entry.coins.DynamicMemoryUsage();
+ entry.coin = std::move(it->second.coin);
+ cachedCoinsUsage += entry.coin.DynamicMemoryUsage();
entry.flags = CCoinsCacheEntry::DIRTY;
// We can mark it FRESH in the parent if it was FRESH in the child
// Otherwise it might have just been flushed from the parent's cache
@@ -211,21 +162,21 @@ bool CCoinsViewCache::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlockIn
// parent cache entry has unspent outputs. If this ever happens,
// it means the FRESH flag was misapplied and there is a logic
// error in the calling code.
- if ((it->second.flags & CCoinsCacheEntry::FRESH) && !itUs->second.coins.IsPruned())
+ if ((it->second.flags & CCoinsCacheEntry::FRESH) && !itUs->second.coin.IsSpent())
throw std::logic_error("FRESH flag misapplied to cache entry for base transaction with spendable outputs");
// Found the entry in the parent cache
- if ((itUs->second.flags & CCoinsCacheEntry::FRESH) && it->second.coins.IsPruned()) {
+ if ((itUs->second.flags & CCoinsCacheEntry::FRESH) && it->second.coin.IsSpent()) {
// The grandparent does not have an entry, and the child is
// modified and being pruned. This means we can just delete
// it from the parent.
- cachedCoinsUsage -= itUs->second.coins.DynamicMemoryUsage();
+ cachedCoinsUsage -= itUs->second.coin.DynamicMemoryUsage();
cacheCoins.erase(itUs);
} else {
// A normal modification.
- cachedCoinsUsage -= itUs->second.coins.DynamicMemoryUsage();
- itUs->second.coins.swap(it->second.coins);
- cachedCoinsUsage += itUs->second.coins.DynamicMemoryUsage();
+ cachedCoinsUsage -= itUs->second.coin.DynamicMemoryUsage();
+ itUs->second.coin = std::move(it->second.coin);
+ cachedCoinsUsage += itUs->second.coin.DynamicMemoryUsage();
itUs->second.flags |= CCoinsCacheEntry::DIRTY;
// NOTE: It is possible the child has a FRESH flag here in
// the event the entry we found in the parent is pruned. But
@@ -249,11 +200,11 @@ bool CCoinsViewCache::Flush() {
return fOk;
}
-void CCoinsViewCache::Uncache(const uint256& hash)
+void CCoinsViewCache::Uncache(const COutPoint& hash)
{
CCoinsMap::iterator it = cacheCoins.find(hash);
if (it != cacheCoins.end() && it->second.flags == 0) {
- cachedCoinsUsage -= it->second.coins.DynamicMemoryUsage();
+ cachedCoinsUsage -= it->second.coin.DynamicMemoryUsage();
cacheCoins.erase(it);
}
}
@@ -262,13 +213,6 @@ unsigned int CCoinsViewCache::GetCacheSize() const {
return cacheCoins.size();
}
-const CTxOut &CCoinsViewCache::GetOutputFor(const CTxIn& input) const
-{
- const CCoins* coins = AccessCoins(input.prevout.hash);
- assert(coins && coins->IsAvailable(input.prevout.n));
- return coins->vout[input.prevout.n];
-}
-
CAmount CCoinsViewCache::GetValueIn(const CTransaction& tx) const
{
if (tx.IsCoinBase())
@@ -276,7 +220,7 @@ CAmount CCoinsViewCache::GetValueIn(const CTransaction& tx) const
CAmount nResult = 0;
for (unsigned int i = 0; i < tx.vin.size(); i++)
- nResult += GetOutputFor(tx.vin[i]).nValue;
+ nResult += AccessCoin(tx.vin[i].prevout).out.nValue;
return nResult;
}
@@ -285,9 +229,7 @@ bool CCoinsViewCache::HaveInputs(const CTransaction& tx) const
{
if (!tx.IsCoinBase()) {
for (unsigned int i = 0; i < tx.vin.size(); i++) {
- const COutPoint &prevout = tx.vin[i].prevout;
- const CCoins* coins = AccessCoins(prevout.hash);
- if (!coins || !coins->IsAvailable(prevout.n)) {
+ if (!HaveCoin(tx.vin[i].prevout)) {
return false;
}
}
@@ -295,25 +237,15 @@ bool CCoinsViewCache::HaveInputs(const CTransaction& tx) const
return true;
}
-CCoinsModifier::CCoinsModifier(CCoinsViewCache& cache_, CCoinsMap::iterator it_, size_t usage) : cache(cache_), it(it_), cachedCoinUsage(usage) {
- assert(!cache.hasModifier);
- cache.hasModifier = true;
-}
+static const size_t MAX_OUTPUTS_PER_BLOCK = MAX_BLOCK_BASE_SIZE / ::GetSerializeSize(CTxOut(), SER_NETWORK, PROTOCOL_VERSION); // TODO: merge with similar definition in undo.h.
-CCoinsModifier::~CCoinsModifier()
+const Coin& AccessByTxid(const CCoinsViewCache& view, const uint256& txid)
{
- assert(cache.hasModifier);
- cache.hasModifier = false;
- it->second.coins.Cleanup();
- cache.cachedCoinsUsage -= cachedCoinUsage; // Subtract the old usage
- if ((it->second.flags & CCoinsCacheEntry::FRESH) && it->second.coins.IsPruned()) {
- cache.cacheCoins.erase(it);
- } else {
- // If the coin still exists after the modification, add the new usage
- cache.cachedCoinsUsage += it->second.coins.DynamicMemoryUsage();
+ COutPoint iter(txid, 0);
+ while (iter.n < MAX_OUTPUTS_PER_BLOCK) {
+ const Coin& alternate = view.AccessCoin(iter);
+ if (!alternate.IsSpent()) return alternate;
+ ++iter.n;
}
-}
-
-CCoinsViewCursor::~CCoinsViewCursor()
-{
+ return coinEmpty;
}
diff --git a/src/coins.h b/src/coins.h
index 065bae56e9..476db8f37c 100644
--- a/src/coins.h
+++ b/src/coins.h
@@ -20,135 +20,37 @@
#include <boost/foreach.hpp>
#include <unordered_map>
-/**
- * Pruned version of CTransaction: only retains metadata and unspent transaction outputs
+/**
+ * A UTXO entry.
*
* Serialized format:
- * - VARINT(nVersion)
- * - VARINT(nCode)
- * - unspentness bitvector, for vout[2] and further; least significant byte first
- * - the non-spent CTxOuts (via CTxOutCompressor)
- * - VARINT(nHeight)
- *
- * The nCode value consists of:
- * - bit 0: IsCoinBase()
- * - bit 1: vout[0] is not spent
- * - bit 2: vout[1] is not spent
- * - The higher bits encode N, the number of non-zero bytes in the following bitvector.
- * - In case both bit 1 and bit 2 are unset, they encode N-1, as there must be at
- * least one non-spent output).
- *
- * Example: 0104835800816115944e077fe7c803cfa57f29b36bf87c1d358bb85e
- * <><><--------------------------------------------><---->
- * | \ | /
- * version code vout[1] height
- *
- * - version = 1
- * - code = 4 (vout[1] is not spent, and 0 non-zero bytes of bitvector follow)
- * - unspentness bitvector: as 0 non-zero bytes follow, it has length 0
- * - vout[1]: 835800816115944e077fe7c803cfa57f29b36bf87c1d35
- * * 8358: compact amount representation for 60000000000 (600 BTC)
- * * 00: special txout type pay-to-pubkey-hash
- * * 816115944e077fe7c803cfa57f29b36bf87c1d35: address uint160
- * - height = 203998
- *
- *
- * Example: 0109044086ef97d5790061b01caab50f1b8e9c50a5057eb43c2d9563a4eebbd123008c988f1a4a4de2161e0f50aac7f17e7f9555caa486af3b
- * <><><--><--------------------------------------------------><----------------------------------------------><---->
- * / \ \ | | /
- * version code unspentness vout[4] vout[16] height
- *
- * - version = 1
- * - code = 9 (coinbase, neither vout[0] or vout[1] are unspent,
- * 2 (1, +1 because both bit 1 and bit 2 are unset) non-zero bitvector bytes follow)
- * - unspentness bitvector: bits 2 (0x04) and 14 (0x4000) are set, so vout[2+2] and vout[14+2] are unspent
- * - vout[4]: 86ef97d5790061b01caab50f1b8e9c50a5057eb43c2d9563a4ee
- * * 86ef97d579: compact amount representation for 234925952 (2.35 BTC)
- * * 00: special txout type pay-to-pubkey-hash
- * * 61b01caab50f1b8e9c50a5057eb43c2d9563a4ee: address uint160
- * - vout[16]: bbd123008c988f1a4a4de2161e0f50aac7f17e7f9555caa4
- * * bbd123: compact amount representation for 110397 (0.001 BTC)
- * * 00: special txout type pay-to-pubkey-hash
- * * 8c988f1a4a4de2161e0f50aac7f17e7f9555caa4: address uint160
- * - height = 120891
+ * - VARINT((coinbase ? 1 : 0) | (height << 1))
+ * - the non-spent CTxOut (via CTxOutCompressor)
*/
-class CCoins
+class Coin
{
public:
- //! whether transaction is a coinbase
- bool fCoinBase;
-
- //! unspent transaction outputs; spent outputs are .IsNull(); spent outputs at the end of the array are dropped
- std::vector<CTxOut> vout;
+ //! unspent transaction output
+ CTxOut out;
- //! at which height this transaction was included in the active block chain
- int nHeight;
+ //! whether containing transaction was a coinbase
+ unsigned int fCoinBase : 1;
- //! version of the CTransaction; accesses to this value should probably check for nHeight as well,
- //! as new tx version will probably only be introduced at certain heights
- int nVersion;
+ //! at which height this containing transaction was included in the active block chain
+ uint32_t nHeight : 31;
- void FromTx(const CTransaction &tx, int nHeightIn) {
- fCoinBase = tx.IsCoinBase();
- vout = tx.vout;
- nHeight = nHeightIn;
- nVersion = tx.nVersion;
- ClearUnspendable();
- }
-
- //! construct a CCoins from a CTransaction, at a given height
- CCoins(const CTransaction &tx, int nHeightIn) {
- FromTx(tx, nHeightIn);
- }
+ //! construct a Coin from a CTxOut and height/coinbase information.
+ Coin(CTxOut&& outIn, int nHeightIn, bool fCoinBaseIn) : out(std::move(outIn)), fCoinBase(fCoinBaseIn), nHeight(nHeightIn) {}
+ Coin(const CTxOut& outIn, int nHeightIn, bool fCoinBaseIn) : out(outIn), fCoinBase(fCoinBaseIn),nHeight(nHeightIn) {}
void Clear() {
+ out.SetNull();
fCoinBase = false;
- std::vector<CTxOut>().swap(vout);
nHeight = 0;
- nVersion = 0;
}
//! empty constructor
- CCoins() : fCoinBase(false), vout(0), nHeight(0), nVersion(0) { }
-
- //!remove spent outputs at the end of vout
- void Cleanup() {
- while (vout.size() > 0 && vout.back().IsNull())
- vout.pop_back();
- if (vout.empty())
- std::vector<CTxOut>().swap(vout);
- }
-
- void ClearUnspendable() {
- BOOST_FOREACH(CTxOut &txout, vout) {
- if (txout.scriptPubKey.IsUnspendable())
- txout.SetNull();
- }
- Cleanup();
- }
-
- void swap(CCoins &to) {
- std::swap(to.fCoinBase, fCoinBase);
- to.vout.swap(vout);
- std::swap(to.nHeight, nHeight);
- std::swap(to.nVersion, nVersion);
- }
-
- //! equality test
- friend bool operator==(const CCoins &a, const CCoins &b) {
- // Empty CCoins objects are always equal.
- if (a.IsPruned() && b.IsPruned())
- return true;
- return a.fCoinBase == b.fCoinBase &&
- a.nHeight == b.nHeight &&
- a.nVersion == b.nVersion &&
- a.vout == b.vout;
- }
- friend bool operator!=(const CCoins &a, const CCoins &b) {
- return !(a == b);
- }
-
- void CalcMaskSize(unsigned int &nBytes, unsigned int &nNonzeroBytes) const;
+ Coin() : fCoinBase(false), nHeight(0) { }
bool IsCoinBase() const {
return fCoinBase;
@@ -156,115 +58,52 @@ public:
template<typename Stream>
void Serialize(Stream &s) const {
- unsigned int nMaskSize = 0, nMaskCode = 0;
- CalcMaskSize(nMaskSize, nMaskCode);
- bool fFirst = vout.size() > 0 && !vout[0].IsNull();
- bool fSecond = vout.size() > 1 && !vout[1].IsNull();
- assert(fFirst || fSecond || nMaskCode);
- unsigned int nCode = 8*(nMaskCode - (fFirst || fSecond ? 0 : 1)) + (fCoinBase ? 1 : 0) + (fFirst ? 2 : 0) + (fSecond ? 4 : 0);
- // version
- ::Serialize(s, VARINT(this->nVersion));
- // header code
- ::Serialize(s, VARINT(nCode));
- // spentness bitmask
- for (unsigned int b = 0; b<nMaskSize; b++) {
- unsigned char chAvail = 0;
- for (unsigned int i = 0; i < 8 && 2+b*8+i < vout.size(); i++)
- if (!vout[2+b*8+i].IsNull())
- chAvail |= (1 << i);
- ::Serialize(s, chAvail);
- }
- // txouts themself
- for (unsigned int i = 0; i < vout.size(); i++) {
- if (!vout[i].IsNull())
- ::Serialize(s, CTxOutCompressor(REF(vout[i])));
- }
- // coinbase height
- ::Serialize(s, VARINT(nHeight));
+ assert(!IsSpent());
+ uint32_t code = nHeight * 2 + fCoinBase;
+ ::Serialize(s, VARINT(code));
+ ::Serialize(s, CTxOutCompressor(REF(out)));
}
template<typename Stream>
void Unserialize(Stream &s) {
- unsigned int nCode = 0;
- // version
- ::Unserialize(s, VARINT(this->nVersion));
- // header code
- ::Unserialize(s, VARINT(nCode));
- fCoinBase = nCode & 1;
- std::vector<bool> vAvail(2, false);
- vAvail[0] = (nCode & 2) != 0;
- vAvail[1] = (nCode & 4) != 0;
- unsigned int nMaskCode = (nCode / 8) + ((nCode & 6) != 0 ? 0 : 1);
- // spentness bitmask
- while (nMaskCode > 0) {
- unsigned char chAvail = 0;
- ::Unserialize(s, chAvail);
- for (unsigned int p = 0; p < 8; p++) {
- bool f = (chAvail & (1 << p)) != 0;
- vAvail.push_back(f);
- }
- if (chAvail != 0)
- nMaskCode--;
- }
- // txouts themself
- vout.assign(vAvail.size(), CTxOut());
- for (unsigned int i = 0; i < vAvail.size(); i++) {
- if (vAvail[i])
- ::Unserialize(s, REF(CTxOutCompressor(vout[i])));
- }
- // coinbase height
- ::Unserialize(s, VARINT(nHeight));
- Cleanup();
+ uint32_t code = 0;
+ ::Unserialize(s, VARINT(code));
+ nHeight = code >> 1;
+ fCoinBase = code & 1;
+ ::Unserialize(s, REF(CTxOutCompressor(out)));
}
- //! mark a vout spent
- bool Spend(uint32_t nPos);
-
- //! check whether a particular output is still available
- bool IsAvailable(unsigned int nPos) const {
- return (nPos < vout.size() && !vout[nPos].IsNull());
- }
-
- //! check whether the entire CCoins is spent
- //! note that only !IsPruned() CCoins can be serialized
- bool IsPruned() const {
- BOOST_FOREACH(const CTxOut &out, vout)
- if (!out.IsNull())
- return false;
- return true;
+ bool IsSpent() const {
+ return out.IsNull();
}
size_t DynamicMemoryUsage() const {
- size_t ret = memusage::DynamicUsage(vout);
- BOOST_FOREACH(const CTxOut &out, vout) {
- ret += RecursiveDynamicUsage(out.scriptPubKey);
- }
- return ret;
+ return memusage::DynamicUsage(out.scriptPubKey);
}
};
-class SaltedTxidHasher
+class SaltedOutpointHasher
{
private:
/** Salt */
const uint64_t k0, k1;
public:
- SaltedTxidHasher();
+ SaltedOutpointHasher();
/**
* This *must* return size_t. With Boost 1.46 on 32-bit systems the
* unordered_map will behave unpredictably if the custom hasher returns a
* uint64_t, resulting in failures when syncing the chain (#4634).
*/
- size_t operator()(const uint256& txid) const {
- return SipHashUint256(k0, k1, txid);
+ size_t operator()(const COutPoint& id) const {
+ return SipHashUint256Extra(k0, k1, id.hash, id.n);
}
};
struct CCoinsCacheEntry
{
- CCoins coins; // The actual cached data.
+ Coin coin; // The actual cached data.
unsigned char flags;
enum Flags {
@@ -277,20 +116,21 @@ struct CCoinsCacheEntry
*/
};
- CCoinsCacheEntry() : coins(), flags(0) {}
+ CCoinsCacheEntry() : flags(0) {}
+ explicit CCoinsCacheEntry(Coin&& coin_) : coin(std::move(coin_)), flags(0) {}
};
-typedef std::unordered_map<uint256, CCoinsCacheEntry, SaltedTxidHasher> CCoinsMap;
+typedef std::unordered_map<COutPoint, CCoinsCacheEntry, SaltedOutpointHasher> CCoinsMap;
/** Cursor for iterating over CoinsView state */
class CCoinsViewCursor
{
public:
CCoinsViewCursor(const uint256 &hashBlockIn): hashBlock(hashBlockIn) {}
- virtual ~CCoinsViewCursor();
+ virtual ~CCoinsViewCursor() {}
- virtual bool GetKey(uint256 &key) const = 0;
- virtual bool GetValue(CCoins &coins) const = 0;
+ virtual bool GetKey(COutPoint &key) const = 0;
+ virtual bool GetValue(Coin &coin) const = 0;
virtual unsigned int GetValueSize() const = 0;
virtual bool Valid() const = 0;
@@ -306,17 +146,17 @@ private:
class CCoinsView
{
public:
- //! Retrieve the CCoins (unspent transaction outputs) for a given txid
- virtual bool GetCoins(const uint256 &txid, CCoins &coins) const;
+ //! Retrieve the Coin (unspent transaction output) for a given outpoint.
+ virtual bool GetCoin(const COutPoint &outpoint, Coin &coin) const;
- //! Just check whether we have data for a given txid.
- //! This may (but cannot always) return true for fully spent transactions
- virtual bool HaveCoins(const uint256 &txid) const;
+ //! Just check whether we have data for a given outpoint.
+ //! This may (but cannot always) return true for spent outputs.
+ virtual bool HaveCoin(const COutPoint &outpoint) const;
//! Retrieve the block hash whose state this CCoinsView currently represents
virtual uint256 GetBestBlock() const;
- //! Do a bulk modification (multiple CCoins changes + BestBlock change).
+ //! Do a bulk modification (multiple Coin changes + BestBlock change).
//! The passed mapCoins can be modified.
virtual bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock);
@@ -325,6 +165,9 @@ public:
//! As we use CCoinsViews polymorphically, have a virtual destructor
virtual ~CCoinsView() {}
+
+ //! Estimate database size (0 if not implemented)
+ virtual size_t EstimateSize() const { return 0; }
};
@@ -336,45 +179,20 @@ protected:
public:
CCoinsViewBacked(CCoinsView *viewIn);
- bool GetCoins(const uint256 &txid, CCoins &coins) const;
- bool HaveCoins(const uint256 &txid) const;
- uint256 GetBestBlock() const;
+ bool GetCoin(const COutPoint &outpoint, Coin &coin) const override;
+ bool HaveCoin(const COutPoint &outpoint) const override;
+ uint256 GetBestBlock() const override;
void SetBackend(CCoinsView &viewIn);
- bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock);
- CCoinsViewCursor *Cursor() const;
+ bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) override;
+ CCoinsViewCursor *Cursor() const override;
+ size_t EstimateSize() const override;
};
-class CCoinsViewCache;
-
-/**
- * A reference to a mutable cache entry. Encapsulating it allows us to run
- * cleanup code after the modification is finished, and keeping track of
- * concurrent modifications.
- */
-class CCoinsModifier
-{
-private:
- CCoinsViewCache& cache;
- CCoinsMap::iterator it;
- size_t cachedCoinUsage; // Cached memory usage of the CCoins object before modification
- CCoinsModifier(CCoinsViewCache& cache_, CCoinsMap::iterator it_, size_t usage);
-
-public:
- CCoins* operator->() { return &it->second.coins; }
- CCoins& operator*() { return it->second.coins; }
- ~CCoinsModifier();
- friend class CCoinsViewCache;
-};
-
/** CCoinsView that adds a memory cache for transactions to another CCoinsView */
class CCoinsViewCache : public CCoinsViewBacked
{
protected:
- /* Whether this cache has an active modifier. */
- bool hasModifier;
-
-
/**
* Make mutable so that we can "fill the cache" even from Get-methods
* declared as "const".
@@ -382,51 +200,45 @@ protected:
mutable uint256 hashBlock;
mutable CCoinsMap cacheCoins;
- /* Cached dynamic memory usage for the inner CCoins objects. */
+ /* Cached dynamic memory usage for the inner Coin objects. */
mutable size_t cachedCoinsUsage;
public:
CCoinsViewCache(CCoinsView *baseIn);
- ~CCoinsViewCache();
// Standard CCoinsView methods
- bool GetCoins(const uint256 &txid, CCoins &coins) const;
- bool HaveCoins(const uint256 &txid) const;
+ bool GetCoin(const COutPoint &outpoint, Coin &coin) const;
+ bool HaveCoin(const COutPoint &outpoint) const;
uint256 GetBestBlock() const;
void SetBestBlock(const uint256 &hashBlock);
bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock);
/**
- * Check if we have the given tx already loaded in this cache.
- * The semantics are the same as HaveCoins(), but no calls to
+ * Check if we have the given utxo already loaded in this cache.
+ * The semantics are the same as HaveCoin(), but no calls to
* the backing CCoinsView are made.
*/
- bool HaveCoinsInCache(const uint256 &txid) const;
+ bool HaveCoinInCache(const COutPoint &outpoint) const;
/**
- * Return a pointer to CCoins in the cache, or NULL if not found. This is
- * more efficient than GetCoins. Modifications to other cache entries are
+ * Return a reference to Coin in the cache, or a pruned one if not found. This is
+ * more efficient than GetCoin. Modifications to other cache entries are
* allowed while accessing the returned pointer.
*/
- const CCoins* AccessCoins(const uint256 &txid) const;
+ const Coin& AccessCoin(const COutPoint &output) const;
/**
- * Return a modifiable reference to a CCoins. If no entry with the given
- * txid exists, a new one is created. Simultaneous modifications are not
- * allowed.
+ * Add a coin. Set potential_overwrite to true if a non-pruned version may
+ * already exist.
*/
- CCoinsModifier ModifyCoins(const uint256 &txid);
+ void AddCoin(const COutPoint& outpoint, Coin&& coin, bool potential_overwrite);
/**
- * Return a modifiable reference to a CCoins. Assumes that no entry with the given
- * txid exists and creates a new one. This saves a database access in the case where
- * the coins were to be wiped out by FromTx anyway. This should not be called with
- * the 2 historical coinbase duplicate pairs because the new coins are marked fresh, and
- * in the event the duplicate coinbase was spent before a flush, the now pruned coins
- * would not properly overwrite the first coinbase of the pair. Simultaneous modifications
- * are not allowed.
+ * Spend a coin. Pass moveto in order to get the deleted data.
+ * If no unspent output exists for the passed outpoint, this call
+ * has no effect.
*/
- CCoinsModifier ModifyNewCoins(const uint256 &txid, bool coinbase);
+ void SpendCoin(const COutPoint &outpoint, Coin* moveto = nullptr);
/**
* Push the modifications applied to this cache to its base.
@@ -436,12 +248,12 @@ public:
bool Flush();
/**
- * Removes the transaction with the given hash from the cache, if it is
+ * Removes the UTXO with the given outpoint from the cache, if it is
* not modified.
*/
- void Uncache(const uint256 &txid);
+ void Uncache(const COutPoint &outpoint);
- //! Calculate the size of the cache (in number of transactions)
+ //! Calculate the size of the cache (in number of transaction outputs)
unsigned int GetCacheSize() const;
//! Calculate the size of the cache (in bytes)
@@ -460,12 +272,8 @@ public:
//! Check whether all prevouts of the transaction are present in the UTXO set represented by this view
bool HaveInputs(const CTransaction& tx) const;
- const CTxOut &GetOutputFor(const CTxIn& input) const;
-
- friend class CCoinsModifier;
-
private:
- CCoinsMap::const_iterator FetchCoins(const uint256 &txid) const;
+ CCoinsMap::iterator FetchCoin(const COutPoint &outpoint) const;
/**
* By making the copy constructor private, we prevent accidentally using it when one intends to create a cache on top of a base cache.
@@ -473,4 +281,13 @@ private:
CCoinsViewCache(const CCoinsViewCache &);
};
+//! Utility function to add all of a transaction's outputs to a cache.
+// It assumes that overwrites are only possible for coinbase transactions,
+// TODO: pass in a boolean to limit these possible overwrites to known
+// (pre-BIP34) cases.
+void AddCoins(CCoinsViewCache& cache, const CTransaction& tx, int nHeight);
+
+//! Utility function to find any unspent output with a given txid.
+const Coin& AccessByTxid(const CCoinsViewCache& cache, const uint256& txid);
+
#endif // BITCOIN_COINS_H
diff --git a/src/consensus/tx_verify.cpp b/src/consensus/tx_verify.cpp
index 043f4cf95c..bf68f8754b 100644
--- a/src/consensus/tx_verify.cpp
+++ b/src/consensus/tx_verify.cpp
@@ -126,7 +126,7 @@ unsigned int GetP2SHSigOpCount(const CTransaction& tx, const CCoinsViewCache& in
unsigned int nSigOps = 0;
for (unsigned int i = 0; i < tx.vin.size(); i++)
{
- const CTxOut &prevout = inputs.GetOutputFor(tx.vin[i]);
+ const CTxOut &prevout = inputs.AccessCoin(tx.vin[i].prevout).out;
if (prevout.scriptPubKey.IsPayToScriptHash())
nSigOps += prevout.scriptPubKey.GetSigOpCount(tx.vin[i].scriptSig);
}
@@ -146,7 +146,7 @@ int64_t GetTransactionSigOpCost(const CTransaction& tx, const CCoinsViewCache& i
for (unsigned int i = 0; i < tx.vin.size(); i++)
{
- const CTxOut &prevout = inputs.GetOutputFor(tx.vin[i]);
+ const CTxOut &prevout = inputs.AccessCoin(tx.vin[i].prevout).out;
nSigOps += CountWitnessSigOps(tx.vin[i].scriptSig, prevout.scriptPubKey, &tx.vin[i].scriptWitness, flags);
}
return nSigOps;
@@ -213,20 +213,20 @@ bool Consensus::CheckTxInputs(const CTransaction& tx, CValidationState& state, c
for (unsigned int i = 0; i < tx.vin.size(); i++)
{
const COutPoint &prevout = tx.vin[i].prevout;
- const CCoins *coins = inputs.AccessCoins(prevout.hash);
- assert(coins);
+ const Coin& coin = inputs.AccessCoin(prevout);
+ assert(!coin.IsSpent());
// If prev is coinbase, check that it's matured
- if (coins->IsCoinBase()) {
- if (nSpendHeight - coins->nHeight < COINBASE_MATURITY)
+ if (coin.IsCoinBase()) {
+ if (nSpendHeight - coin.nHeight < COINBASE_MATURITY)
return state.Invalid(false,
REJECT_INVALID, "bad-txns-premature-spend-of-coinbase",
- strprintf("tried to spend coinbase at depth %d", nSpendHeight - coins->nHeight));
+ strprintf("tried to spend coinbase at depth %d", nSpendHeight - coin.nHeight));
}
// Check for negative or overflow input values
- nValueIn += coins->vout[prevout.n].nValue;
- if (!MoneyRange(coins->vout[prevout.n].nValue) || !MoneyRange(nValueIn))
+ nValueIn += coin.out.nValue;
+ if (!MoneyRange(coin.out.nValue) || !MoneyRange(nValueIn))
return state.DoS(100, false, REJECT_INVALID, "bad-txns-inputvalues-outofrange");
}
diff --git a/src/dbwrapper.h b/src/dbwrapper.h
index b13e98b7a4..24ef71bfbf 100644
--- a/src/dbwrapper.h
+++ b/src/dbwrapper.h
@@ -55,11 +55,19 @@ private:
CDataStream ssKey;
CDataStream ssValue;
+ size_t size_estimate;
+
public:
/**
* @param[in] _parent CDBWrapper that this batch is to be submitted to
*/
- CDBBatch(const CDBWrapper &_parent) : parent(_parent), ssKey(SER_DISK, CLIENT_VERSION), ssValue(SER_DISK, CLIENT_VERSION) { };
+ CDBBatch(const CDBWrapper &_parent) : parent(_parent), ssKey(SER_DISK, CLIENT_VERSION), ssValue(SER_DISK, CLIENT_VERSION), size_estimate(0) { };
+
+ void Clear()
+ {
+ batch.Clear();
+ size_estimate = 0;
+ }
template <typename K, typename V>
void Write(const K& key, const V& value)
@@ -74,6 +82,14 @@ public:
leveldb::Slice slValue(ssValue.data(), ssValue.size());
batch.Put(slKey, slValue);
+ // LevelDB serializes writes as:
+ // - byte: header
+ // - varint: key length (1 byte up to 127B, 2 bytes up to 16383B, ...)
+ // - byte[]: key
+ // - varint: value length
+ // - byte[]: value
+ // The formula below assumes the key and value are both less than 16k.
+ size_estimate += 3 + (slKey.size() > 127) + slKey.size() + (slValue.size() > 127) + slValue.size();
ssKey.clear();
ssValue.clear();
}
@@ -86,8 +102,16 @@ public:
leveldb::Slice slKey(ssKey.data(), ssKey.size());
batch.Delete(slKey);
+ // LevelDB serializes erases as:
+ // - byte: header
+ // - varint: key length
+ // - byte[]: key
+ // The formula below assumes the key is less than 16kB.
+ size_estimate += 2 + (slKey.size() > 127) + slKey.size();
ssKey.clear();
}
+
+ size_t SizeEstimate() const { return size_estimate; }
};
class CDBIterator
@@ -281,7 +305,22 @@ public:
* Return true if the database managed by this class contains no entries.
*/
bool IsEmpty();
+
+ template<typename K>
+ size_t EstimateSize(const K& key_begin, const K& key_end) const
+ {
+ CDataStream ssKey1(SER_DISK, CLIENT_VERSION), ssKey2(SER_DISK, CLIENT_VERSION);
+ ssKey1.reserve(DBWRAPPER_PREALLOC_KEY_SIZE);
+ ssKey2.reserve(DBWRAPPER_PREALLOC_KEY_SIZE);
+ ssKey1 << key_begin;
+ ssKey2 << key_end;
+ leveldb::Slice slKey1(ssKey1.data(), ssKey1.size());
+ leveldb::Slice slKey2(ssKey2.data(), ssKey2.size());
+ uint64_t size = 0;
+ leveldb::Range range(slKey1, slKey2);
+ pdb->GetApproximateSizes(&range, 1, &size);
+ return size;
+ }
};
#endif // BITCOIN_DBWRAPPER_H
-
diff --git a/src/hash.cpp b/src/hash.cpp
index a14a2386a2..b361c90d16 100644
--- a/src/hash.cpp
+++ b/src/hash.cpp
@@ -208,3 +208,44 @@ uint64_t SipHashUint256(uint64_t k0, uint64_t k1, const uint256& val)
SIPROUND;
return v0 ^ v1 ^ v2 ^ v3;
}
+
+uint64_t SipHashUint256Extra(uint64_t k0, uint64_t k1, const uint256& val, uint32_t extra)
+{
+ /* Specialized implementation for efficiency */
+ uint64_t d = val.GetUint64(0);
+
+ uint64_t v0 = 0x736f6d6570736575ULL ^ k0;
+ uint64_t v1 = 0x646f72616e646f6dULL ^ k1;
+ uint64_t v2 = 0x6c7967656e657261ULL ^ k0;
+ uint64_t v3 = 0x7465646279746573ULL ^ k1 ^ d;
+
+ SIPROUND;
+ SIPROUND;
+ v0 ^= d;
+ d = val.GetUint64(1);
+ v3 ^= d;
+ SIPROUND;
+ SIPROUND;
+ v0 ^= d;
+ d = val.GetUint64(2);
+ v3 ^= d;
+ SIPROUND;
+ SIPROUND;
+ v0 ^= d;
+ d = val.GetUint64(3);
+ v3 ^= d;
+ SIPROUND;
+ SIPROUND;
+ v0 ^= d;
+ d = (((uint64_t)36) << 56) | extra;
+ v3 ^= d;
+ SIPROUND;
+ SIPROUND;
+ v0 ^= d;
+ v2 ^= 0xFF;
+ SIPROUND;
+ SIPROUND;
+ SIPROUND;
+ SIPROUND;
+ return v0 ^ v1 ^ v2 ^ v3;
+}
diff --git a/src/hash.h b/src/hash.h
index eacb8f04fe..b9952d39fc 100644
--- a/src/hash.h
+++ b/src/hash.h
@@ -160,6 +160,41 @@ public:
}
};
+/** Reads data from an underlying stream, while hashing the read data. */
+template<typename Source>
+class CHashVerifier : public CHashWriter
+{
+private:
+ Source* source;
+
+public:
+ CHashVerifier(Source* source_) : CHashWriter(source_->GetType(), source_->GetVersion()), source(source_) {}
+
+ void read(char* pch, size_t nSize)
+ {
+ source->read(pch, nSize);
+ this->write(pch, nSize);
+ }
+
+ void ignore(size_t nSize)
+ {
+ char data[1024];
+ while (nSize > 0) {
+ size_t now = std::min<size_t>(nSize, 1024);
+ read(data, now);
+ nSize -= now;
+ }
+ }
+
+ template<typename T>
+ CHashVerifier<Source>& operator>>(T& obj)
+ {
+ // Unserialize from this stream
+ ::Unserialize(*this, obj);
+ return (*this);
+ }
+};
+
/** Compute the 256-bit hash of an object's serialization. */
template<typename T>
uint256 SerializeHash(const T& obj, int nType=SER_GETHASH, int nVersion=PROTOCOL_VERSION)
@@ -206,5 +241,6 @@ public:
* .Finalize()
*/
uint64_t SipHashUint256(uint64_t k0, uint64_t k1, const uint256& val);
+uint64_t SipHashUint256Extra(uint64_t k0, uint64_t k1, const uint256& val, uint32_t extra);
#endif // BITCOIN_HASH_H
diff --git a/src/init.cpp b/src/init.cpp
index f343f1d965..33023a1800 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -146,9 +146,9 @@ class CCoinsViewErrorCatcher : public CCoinsViewBacked
{
public:
CCoinsViewErrorCatcher(CCoinsView* view) : CCoinsViewBacked(view) {}
- bool GetCoins(const uint256 &txid, CCoins &coins) const {
+ bool GetCoin(const COutPoint &outpoint, Coin &coin) const override {
try {
- return CCoinsViewBacked::GetCoins(txid, coins);
+ return CCoinsViewBacked::GetCoin(outpoint, coin);
} catch(const std::runtime_error& e) {
uiInterface.ThreadSafeMessageBox(_("Error reading from database, shutting down."), "", CClientUIInterface::MSG_ERROR);
LogPrintf("Error reading from database: %s\n", e.what());
@@ -1450,6 +1450,12 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
//If we're reindexing in prune mode, wipe away unusable block files and all undo data files
if (fPruneMode)
CleanupBlockRevFiles();
+ } else {
+ // If necessary, upgrade from older database format.
+ if (!pcoinsdbview->Upgrade()) {
+ strLoadError = _("Error upgrading chainstate database");
+ break;
+ }
}
if (!LoadBlockIndex(chainparams)) {
diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index 3102c2ef9a..971db3427c 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -911,12 +911,11 @@ bool static AlreadyHave(const CInv& inv) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
recentRejects->reset();
}
- // Use pcoinsTip->HaveCoinsInCache as a quick approximation to exclude
- // requesting or processing some txs which have already been included in a block
return recentRejects->contains(inv.hash) ||
mempool.exists(inv.hash) ||
mapOrphanTransactions.count(inv.hash) ||
- pcoinsTip->HaveCoinsInCache(inv.hash);
+ pcoinsTip->HaveCoinInCache(COutPoint(inv.hash, 0)) || // Best effort: only try output 0 and 1
+ pcoinsTip->HaveCoinInCache(COutPoint(inv.hash, 1));
}
case MSG_BLOCK:
case MSG_WITNESS_BLOCK:
diff --git a/src/policy/policy.cpp b/src/policy/policy.cpp
index f4fffd6578..14d58e7442 100644
--- a/src/policy/policy.cpp
+++ b/src/policy/policy.cpp
@@ -165,7 +165,7 @@ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs)
for (unsigned int i = 0; i < tx.vin.size(); i++)
{
- const CTxOut& prev = mapInputs.GetOutputFor(tx.vin[i]);
+ const CTxOut& prev = mapInputs.AccessCoin(tx.vin[i].prevout).out;
std::vector<std::vector<unsigned char> > vSolutions;
txnouttype whichType;
@@ -204,7 +204,7 @@ bool IsWitnessStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs)
if (tx.vin[i].scriptWitness.IsNull())
continue;
- const CTxOut &prev = mapInputs.GetOutputFor(tx.vin[i]);
+ const CTxOut &prev = mapInputs.AccessCoin(tx.vin[i].prevout).out;
// get the scriptPubKey corresponding to this input:
CScript prevScript = prev.scriptPubKey;
diff --git a/src/qt/transactiondesc.cpp b/src/qt/transactiondesc.cpp
index d81188895b..233fc08772 100644
--- a/src/qt/transactiondesc.cpp
+++ b/src/qt/transactiondesc.cpp
@@ -293,13 +293,12 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, TransactionReco
{
COutPoint prevout = txin.prevout;
- CCoins prev;
- if(pcoinsTip->GetCoins(prevout.hash, prev))
+ Coin prev;
+ if(pcoinsTip->GetCoin(prevout, prev))
{
- if (prevout.n < prev.vout.size())
{
strHTML += "<li>";
- const CTxOut &vout = prev.vout[prevout.n];
+ const CTxOut &vout = prev.out;
CTxDestination address;
if (ExtractDestination(vout.scriptPubKey, address))
{
diff --git a/src/rest.cpp b/src/rest.cpp
index 7537ed4502..b08d7153b1 100644
--- a/src/rest.cpp
+++ b/src/rest.cpp
@@ -42,16 +42,19 @@ static const struct {
};
struct CCoin {
- uint32_t nTxVer; // Don't call this nVersion, that name has a special meaning inside IMPLEMENT_SERIALIZE
uint32_t nHeight;
CTxOut out;
ADD_SERIALIZE_METHODS;
+ CCoin() : nHeight(0) {}
+ CCoin(Coin&& in) : nHeight(in.nHeight), out(std::move(in.out)) {}
+
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action)
{
- READWRITE(nTxVer);
+ uint32_t nTxVerDummy = 0;
+ READWRITE(nTxVerDummy);
READWRITE(nHeight);
READWRITE(out);
}
@@ -509,22 +512,11 @@ static bool rest_getutxos(HTTPRequest* req, const std::string& strURIPart)
view.SetBackend(viewMempool); // switch cache backend to db+mempool in case user likes to query mempool
for (size_t i = 0; i < vOutPoints.size(); i++) {
- CCoins coins;
- uint256 hash = vOutPoints[i].hash;
bool hit = false;
- if (view.GetCoins(hash, coins)) {
- mempool.pruneSpent(hash, coins);
- if (coins.IsAvailable(vOutPoints[i].n)) {
- hit = true;
- // Safe to index into vout here because IsAvailable checked if it's off the end of the array, or if
- // n is valid but points to an already spent output (IsNull).
- CCoin coin;
- coin.nTxVer = coins.nVersion;
- coin.nHeight = coins.nHeight;
- coin.out = coins.vout.at(vOutPoints[i].n);
- assert(!coin.out.IsNull());
- outs.push_back(coin);
- }
+ Coin coin;
+ if (view.GetCoin(vOutPoints[i], coin) && !mempool.isSpent(vOutPoints[i])) {
+ hit = true;
+ outs.emplace_back(std::move(coin));
}
hits.push_back(hit);
@@ -568,7 +560,6 @@ static bool rest_getutxos(HTTPRequest* req, const std::string& strURIPart)
UniValue utxos(UniValue::VARR);
BOOST_FOREACH (const CCoin& coin, outs) {
UniValue utxo(UniValue::VOBJ);
- utxo.push_back(Pair("txvers", (int32_t)coin.nTxVer));
utxo.push_back(Pair("height", (int32_t)coin.nHeight));
utxo.push_back(Pair("value", ValueFromAmount(coin.out.nValue)));
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index f9bd81cfb9..96871ce1dc 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -781,13 +781,29 @@ struct CCoinsStats
uint256 hashBlock;
uint64_t nTransactions;
uint64_t nTransactionOutputs;
- uint64_t nSerializedSize;
uint256 hashSerialized;
+ uint64_t nDiskSize;
CAmount nTotalAmount;
- CCoinsStats() : nHeight(0), nTransactions(0), nTransactionOutputs(0), nSerializedSize(0), nTotalAmount(0) {}
+ CCoinsStats() : nHeight(0), nTransactions(0), nTransactionOutputs(0), nTotalAmount(0) {}
};
+static void ApplyStats(CCoinsStats &stats, CHashWriter& ss, const uint256& hash, const std::map<uint32_t, Coin>& outputs)
+{
+ assert(!outputs.empty());
+ ss << hash;
+ ss << VARINT(outputs.begin()->second.nHeight * 2 + outputs.begin()->second.fCoinBase);
+ stats.nTransactions++;
+ for (const auto output : outputs) {
+ ss << VARINT(output.first + 1);
+ ss << *(const CScriptBase*)(&output.second.out.scriptPubKey);
+ ss << VARINT(output.second.out.nValue);
+ stats.nTransactionOutputs++;
+ stats.nTotalAmount += output.second.out.nValue;
+ }
+ ss << VARINT(0);
+}
+
//! Calculate statistics about the unspent transaction output set
static bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats)
{
@@ -800,32 +816,29 @@ static bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats)
stats.nHeight = mapBlockIndex.find(stats.hashBlock)->second->nHeight;
}
ss << stats.hashBlock;
- CAmount nTotalAmount = 0;
+ uint256 prevkey;
+ std::map<uint32_t, Coin> outputs;
while (pcursor->Valid()) {
boost::this_thread::interruption_point();
- uint256 key;
- CCoins coins;
- if (pcursor->GetKey(key) && pcursor->GetValue(coins)) {
- stats.nTransactions++;
- ss << key;
- for (unsigned int i=0; i<coins.vout.size(); i++) {
- const CTxOut &out = coins.vout[i];
- if (!out.IsNull()) {
- stats.nTransactionOutputs++;
- ss << VARINT(i+1);
- ss << out;
- nTotalAmount += out.nValue;
- }
+ COutPoint key;
+ Coin coin;
+ if (pcursor->GetKey(key) && pcursor->GetValue(coin)) {
+ if (!outputs.empty() && key.hash != prevkey) {
+ ApplyStats(stats, ss, prevkey, outputs);
+ outputs.clear();
}
- stats.nSerializedSize += 32 + pcursor->GetValueSize();
- ss << VARINT(0);
+ prevkey = key.hash;
+ outputs[key.n] = std::move(coin);
} else {
return error("%s: unable to read value", __func__);
}
pcursor->Next();
}
+ if (!outputs.empty()) {
+ ApplyStats(stats, ss, prevkey, outputs);
+ }
stats.hashSerialized = ss.GetHash();
- stats.nTotalAmount = nTotalAmount;
+ stats.nDiskSize = view->EstimateSize();
return true;
}
@@ -891,8 +904,8 @@ UniValue gettxoutsetinfo(const JSONRPCRequest& request)
" \"bestblock\": \"hex\", (string) the best block hash hex\n"
" \"transactions\": n, (numeric) The number of transactions\n"
" \"txouts\": n, (numeric) The number of output transactions\n"
- " \"bytes_serialized\": n, (numeric) The serialized size\n"
" \"hash_serialized\": \"hash\", (string) The serialized hash\n"
+ " \"disk_size\": n, (numeric) The estimated size of the chainstate on disk\n"
" \"total_amount\": x.xxx (numeric) The total amount\n"
"}\n"
"\nExamples:\n"
@@ -909,8 +922,8 @@ UniValue gettxoutsetinfo(const JSONRPCRequest& request)
ret.push_back(Pair("bestblock", stats.hashBlock.GetHex()));
ret.push_back(Pair("transactions", (int64_t)stats.nTransactions));
ret.push_back(Pair("txouts", (int64_t)stats.nTransactionOutputs));
- ret.push_back(Pair("bytes_serialized", (int64_t)stats.nSerializedSize));
- ret.push_back(Pair("hash_serialized", stats.hashSerialized.GetHex()));
+ ret.push_back(Pair("hash_serialized_2", stats.hashSerialized.GetHex()));
+ ret.push_back(Pair("disk_size", stats.nDiskSize));
ret.push_back(Pair("total_amount", ValueFromAmount(stats.nTotalAmount)));
} else {
throw JSONRPCError(RPC_INTERNAL_ERROR, "Unable to read UTXO set");
@@ -963,37 +976,37 @@ UniValue gettxout(const JSONRPCRequest& request)
std::string strHash = request.params[0].get_str();
uint256 hash(uint256S(strHash));
int n = request.params[1].get_int();
+ COutPoint out(hash, n);
bool fMempool = true;
if (request.params.size() > 2)
fMempool = request.params[2].get_bool();
- CCoins coins;
+ Coin coin;
if (fMempool) {
LOCK(mempool.cs);
CCoinsViewMemPool view(pcoinsTip, mempool);
- if (!view.GetCoins(hash, coins))
+ if (!view.GetCoin(out, coin) || mempool.isSpent(out)) { // TODO: filtering spent coins should be done by the CCoinsViewMemPool
return NullUniValue;
- mempool.pruneSpent(hash, coins); // TODO: this should be done by the CCoinsViewMemPool
+ }
} else {
- if (!pcoinsTip->GetCoins(hash, coins))
+ if (!pcoinsTip->GetCoin(out, coin)) {
return NullUniValue;
+ }
}
- if (n<0 || (unsigned int)n>=coins.vout.size() || coins.vout[n].IsNull())
- return NullUniValue;
BlockMap::iterator it = mapBlockIndex.find(pcoinsTip->GetBestBlock());
CBlockIndex *pindex = it->second;
ret.push_back(Pair("bestblock", pindex->GetBlockHash().GetHex()));
- if ((unsigned int)coins.nHeight == MEMPOOL_HEIGHT)
+ if (coin.nHeight == MEMPOOL_HEIGHT) {
ret.push_back(Pair("confirmations", 0));
- else
- ret.push_back(Pair("confirmations", pindex->nHeight - coins.nHeight + 1));
- ret.push_back(Pair("value", ValueFromAmount(coins.vout[n].nValue)));
+ } else {
+ ret.push_back(Pair("confirmations", (int64_t)(pindex->nHeight - coin.nHeight + 1)));
+ }
+ ret.push_back(Pair("value", ValueFromAmount(coin.out.nValue)));
UniValue o(UniValue::VOBJ);
- ScriptPubKeyToUniv(coins.vout[n].scriptPubKey, o, true);
+ ScriptPubKeyToUniv(coin.out.scriptPubKey, o, true);
ret.push_back(Pair("scriptPubKey", o));
- ret.push_back(Pair("version", coins.nVersion));
- ret.push_back(Pair("coinbase", coins.fCoinBase));
+ ret.push_back(Pair("coinbase", (bool)coin.fCoinBase));
return ret;
}
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index 683bb25246..e27c2a77c7 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -219,9 +219,10 @@ UniValue gettxoutproof(const JSONRPCRequest& request)
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
pblockindex = mapBlockIndex[hashBlock];
} else {
- CCoins coins;
- if (pcoinsTip->GetCoins(oneTxid, coins) && coins.nHeight > 0 && coins.nHeight <= chainActive.Height())
- pblockindex = chainActive[coins.nHeight];
+ const Coin& coin = AccessByTxid(*pcoinsTip, oneTxid);
+ if (!coin.IsSpent() && coin.nHeight > 0 && coin.nHeight <= chainActive.Height()) {
+ pblockindex = chainActive[coin.nHeight];
+ }
}
if (pblockindex == NULL)
@@ -637,9 +638,7 @@ UniValue signrawtransaction(const JSONRPCRequest& request)
view.SetBackend(viewMempool); // temporarily switch cache backend to db+mempool view
BOOST_FOREACH(const CTxIn& txin, mergedTx.vin) {
- const uint256& prevHash = txin.prevout.hash;
- CCoins coins;
- view.AccessCoins(prevHash); // this is certainly allowed to fail
+ view.AccessCoin(txin.prevout); // Load entries from viewChain into view; can fail.
}
view.SetBackend(viewDummy); // switch back to avoid locking mempool for too long
@@ -691,24 +690,26 @@ UniValue signrawtransaction(const JSONRPCRequest& request)
if (nOut < 0)
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "vout must be positive");
+ COutPoint out(txid, nOut);
std::vector<unsigned char> pkData(ParseHexO(prevOut, "scriptPubKey"));
CScript scriptPubKey(pkData.begin(), pkData.end());
{
- CCoinsModifier coins = view.ModifyCoins(txid);
- if (coins->IsAvailable(nOut) && coins->vout[nOut].scriptPubKey != scriptPubKey) {
+ const Coin& coin = view.AccessCoin(out);
+ if (!coin.IsSpent() && coin.out.scriptPubKey != scriptPubKey) {
std::string err("Previous output scriptPubKey mismatch:\n");
- err = err + ScriptToAsmStr(coins->vout[nOut].scriptPubKey) + "\nvs:\n"+
+ err = err + ScriptToAsmStr(coin.out.scriptPubKey) + "\nvs:\n"+
ScriptToAsmStr(scriptPubKey);
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, err);
}
- if ((unsigned int)nOut >= coins->vout.size())
- coins->vout.resize(nOut+1);
- coins->vout[nOut].scriptPubKey = scriptPubKey;
- coins->vout[nOut].nValue = 0;
+ Coin newcoin;
+ newcoin.out.scriptPubKey = scriptPubKey;
+ newcoin.out.nValue = 0;
if (prevOut.exists("amount")) {
- coins->vout[nOut].nValue = AmountFromValue(find_value(prevOut, "amount"));
+ newcoin.out.nValue = AmountFromValue(find_value(prevOut, "amount"));
}
+ newcoin.nHeight = 1;
+ view.AddCoin(out, std::move(newcoin), true);
}
// if redeemScript given and not using the local wallet (private keys
@@ -766,13 +767,13 @@ UniValue signrawtransaction(const JSONRPCRequest& request)
// Sign what we can:
for (unsigned int i = 0; i < mergedTx.vin.size(); i++) {
CTxIn& txin = mergedTx.vin[i];
- const CCoins* coins = view.AccessCoins(txin.prevout.hash);
- if (coins == NULL || !coins->IsAvailable(txin.prevout.n)) {
+ const Coin& coin = view.AccessCoin(txin.prevout);
+ if (coin.IsSpent()) {
TxInErrorToJSON(txin, vErrors, "Input not found or already spent");
continue;
}
- const CScript& prevPubKey = coins->vout[txin.prevout.n].scriptPubKey;
- const CAmount& amount = coins->vout[txin.prevout.n].nValue;
+ const CScript& prevPubKey = coin.out.scriptPubKey;
+ const CAmount& amount = coin.out.nValue;
SignatureData sigdata;
// Only sign SIGHASH_SINGLE if there's a corresponding output:
@@ -844,9 +845,12 @@ UniValue sendrawtransaction(const JSONRPCRequest& request)
nMaxRawTxFee = 0;
CCoinsViewCache &view = *pcoinsTip;
- const CCoins* existingCoins = view.AccessCoins(hashTx);
+ bool fHaveChain = false;
+ for (size_t o = 0; !fHaveChain && o < tx->vout.size(); o++) {
+ const Coin& existingCoin = view.AccessCoin(COutPoint(hashTx, o));
+ fHaveChain = !existingCoin.IsSpent();
+ }
bool fHaveMempool = mempool.exists(hashTx);
- bool fHaveChain = existingCoins && existingCoins->nHeight < 1000000000;
if (!fHaveMempool && !fHaveChain) {
// push to local node and sync with wallets
CValidationState state;
diff --git a/src/test/coins_tests.cpp b/src/test/coins_tests.cpp
index 31ed1a50b9..4a4e551695 100644
--- a/src/test/coins_tests.cpp
+++ b/src/test/coins_tests.cpp
@@ -17,35 +17,44 @@
#include <boost/test/unit_test.hpp>
-bool ApplyTxInUndo(const CTxInUndo& undo, CCoinsViewCache& view, const COutPoint& out);
+int ApplyTxInUndo(Coin&& undo, CCoinsViewCache& view, const COutPoint& out);
void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, CTxUndo &txundo, int nHeight);
namespace
{
+//! equality test
+bool operator==(const Coin &a, const Coin &b) {
+ // Empty Coin objects are always equal.
+ if (a.IsSpent() && b.IsSpent()) return true;
+ return a.fCoinBase == b.fCoinBase &&
+ a.nHeight == b.nHeight &&
+ a.out == b.out;
+}
+
class CCoinsViewTest : public CCoinsView
{
uint256 hashBestBlock_;
- std::map<uint256, CCoins> map_;
+ std::map<COutPoint, Coin> map_;
public:
- bool GetCoins(const uint256& txid, CCoins& coins) const
+ bool GetCoin(const COutPoint& outpoint, Coin& coin) const
{
- std::map<uint256, CCoins>::const_iterator it = map_.find(txid);
+ std::map<COutPoint, Coin>::const_iterator it = map_.find(outpoint);
if (it == map_.end()) {
return false;
}
- coins = it->second;
- if (coins.IsPruned() && insecure_rand() % 2 == 0) {
+ coin = it->second;
+ if (coin.IsSpent() && insecure_rand() % 2 == 0) {
// Randomly return false in case of an empty entry.
return false;
}
return true;
}
- bool HaveCoins(const uint256& txid) const
+ bool HaveCoin(const COutPoint& outpoint) const
{
- CCoins coins;
- return GetCoins(txid, coins);
+ Coin coin;
+ return GetCoin(outpoint, coin);
}
uint256 GetBestBlock() const { return hashBestBlock_; }
@@ -55,8 +64,8 @@ public:
for (CCoinsMap::iterator it = mapCoins.begin(); it != mapCoins.end(); ) {
if (it->second.flags & CCoinsCacheEntry::DIRTY) {
// Same optimization used in CCoinsViewDB is to only write dirty entries.
- map_[it->first] = it->second.coins;
- if (it->second.coins.IsPruned() && insecure_rand() % 3 == 0) {
+ map_[it->first] = it->second.coin;
+ if (it->second.coin.IsSpent() && insecure_rand() % 3 == 0) {
// Randomly delete empty entries on write.
map_.erase(it->first);
}
@@ -78,9 +87,12 @@ public:
{
// Manually recompute the dynamic usage of the whole data, and compare it.
size_t ret = memusage::DynamicUsage(cacheCoins);
+ size_t count = 0;
for (CCoinsMap::iterator it = cacheCoins.begin(); it != cacheCoins.end(); it++) {
- ret += it->second.coins.DynamicMemoryUsage();
+ ret += it->second.coin.DynamicMemoryUsage();
+ ++count;
}
+ BOOST_CHECK_EQUAL(GetCacheSize(), count);
BOOST_CHECK_EQUAL(DynamicMemoryUsage(), ret);
}
@@ -97,7 +109,7 @@ static const unsigned int NUM_SIMULATION_ITERATIONS = 40000;
// This is a large randomized insert/remove simulation test on a variable-size
// stack of caches on top of CCoinsViewTest.
//
-// It will randomly create/update/delete CCoins entries to a tip of caches, with
+// It will randomly create/update/delete Coin entries to a tip of caches, with
// txids picked from a limited list of random 256-bit hashes. Occasionally, a
// new tip is added to the stack of caches, or the tip is flushed and removed.
//
@@ -109,13 +121,15 @@ BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
bool removed_all_caches = false;
bool reached_4_caches = false;
bool added_an_entry = false;
+ bool added_an_unspendable_entry = false;
bool removed_an_entry = false;
bool updated_an_entry = false;
bool found_an_entry = false;
bool missed_an_entry = false;
+ bool uncached_an_entry = false;
// A simple map to track what we expect the cache stack to represent.
- std::map<uint256, CCoins> result;
+ std::map<COutPoint, Coin> result;
// The cache stack.
CCoinsViewTest base; // A CCoinsViewTest at the bottom.
@@ -133,36 +147,51 @@ BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
// Do a random modification.
{
uint256 txid = txids[insecure_rand() % txids.size()]; // txid we're going to modify in this iteration.
- CCoins& coins = result[txid];
- CCoinsModifier entry = stack.back()->ModifyCoins(txid);
- BOOST_CHECK(coins == *entry);
- if (insecure_rand() % 5 == 0 || coins.IsPruned()) {
- if (coins.IsPruned()) {
- added_an_entry = true;
+ Coin& coin = result[COutPoint(txid, 0)];
+ const Coin& entry = (insecure_rand() % 500 == 0) ? AccessByTxid(*stack.back(), txid) : stack.back()->AccessCoin(COutPoint(txid, 0));
+ BOOST_CHECK(coin == entry);
+
+ if (insecure_rand() % 5 == 0 || coin.IsSpent()) {
+ Coin newcoin;
+ newcoin.out.nValue = insecure_rand();
+ newcoin.nHeight = 1;
+ if (insecure_rand() % 16 == 0 && coin.IsSpent()) {
+ newcoin.out.scriptPubKey.assign(1 + (insecure_rand() & 0x3F), OP_RETURN);
+ BOOST_CHECK(newcoin.out.scriptPubKey.IsUnspendable());
+ added_an_unspendable_entry = true;
} else {
- updated_an_entry = true;
+ newcoin.out.scriptPubKey.assign(insecure_rand() & 0x3F, 0); // Random sizes so we can test memory usage accounting
+ (coin.IsSpent() ? added_an_entry : updated_an_entry) = true;
+ coin = newcoin;
}
- coins.nVersion = insecure_rand();
- coins.vout.resize(1);
- coins.vout[0].nValue = insecure_rand();
- *entry = coins;
+ stack.back()->AddCoin(COutPoint(txid, 0), std::move(newcoin), !coin.IsSpent() || insecure_rand() & 1);
} else {
- coins.Clear();
- entry->Clear();
removed_an_entry = true;
+ coin.Clear();
+ stack.back()->SpendCoin(COutPoint(txid, 0));
}
}
+ // One every 10 iterations, remove a random entry from the cache
+ if (insecure_rand() % 10) {
+ COutPoint out(txids[insecure_rand() % txids.size()], 0);
+ int cacheid = insecure_rand() % stack.size();
+ stack[cacheid]->Uncache(out);
+ uncached_an_entry |= !stack[cacheid]->HaveCoinInCache(out);
+ }
+
// Once every 1000 iterations and at the end, verify the full cache.
if (insecure_rand() % 1000 == 1 || i == NUM_SIMULATION_ITERATIONS - 1) {
- for (std::map<uint256, CCoins>::iterator it = result.begin(); it != result.end(); it++) {
- const CCoins* coins = stack.back()->AccessCoins(it->first);
- if (coins) {
- BOOST_CHECK(*coins == it->second);
- found_an_entry = true;
- } else {
- BOOST_CHECK(it->second.IsPruned());
+ for (auto it = result.begin(); it != result.end(); it++) {
+ bool have = stack.back()->HaveCoin(it->first);
+ const Coin& coin = stack.back()->AccessCoin(it->first);
+ BOOST_CHECK(have == !coin.IsSpent());
+ BOOST_CHECK(coin == it->second);
+ if (coin.IsSpent()) {
missed_an_entry = true;
+ } else {
+ BOOST_CHECK(stack.back()->HaveCoinInCache(it->first));
+ found_an_entry = true;
}
}
BOOST_FOREACH(const CCoinsViewCacheTest *test, stack) {
@@ -211,25 +240,27 @@ BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
BOOST_CHECK(removed_all_caches);
BOOST_CHECK(reached_4_caches);
BOOST_CHECK(added_an_entry);
+ BOOST_CHECK(added_an_unspendable_entry);
BOOST_CHECK(removed_an_entry);
BOOST_CHECK(updated_an_entry);
BOOST_CHECK(found_an_entry);
BOOST_CHECK(missed_an_entry);
+ BOOST_CHECK(uncached_an_entry);
}
-typedef std::tuple<CTransaction,CTxUndo,CCoins> TxData;
// Store of all necessary tx and undo data for next test
-std::map<uint256, TxData> alltxs;
-
-TxData &FindRandomFrom(const std::set<uint256> &txidset) {
- assert(txidset.size());
- std::set<uint256>::iterator txIt = txidset.lower_bound(GetRandHash());
- if (txIt == txidset.end()) {
- txIt = txidset.begin();
+typedef std::map<COutPoint, std::tuple<CTransaction,CTxUndo,Coin>> UtxoData;
+UtxoData utxoData;
+
+UtxoData::iterator FindRandomFrom(const std::set<COutPoint> &utxoSet) {
+ assert(utxoSet.size());
+ auto utxoSetIt = utxoSet.lower_bound(COutPoint(GetRandHash(), 0));
+ if (utxoSetIt == utxoSet.end()) {
+ utxoSetIt = utxoSet.begin();
}
- std::map<uint256, TxData>::iterator txdit = alltxs.find(*txIt);
- assert(txdit != alltxs.end());
- return txdit->second;
+ auto utxoDataIt = utxoData.find(*utxoSetIt);
+ assert(utxoDataIt != utxoData.end());
+ return utxoDataIt;
}
@@ -242,7 +273,7 @@ BOOST_AUTO_TEST_CASE(updatecoins_simulation_test)
{
bool spent_a_duplicate_coinbase = false;
// A simple map to track what we expect the cache stack to represent.
- std::map<uint256, CCoins> result;
+ std::map<COutPoint, Coin> result;
// The cache stack.
CCoinsViewTest base; // A CCoinsViewTest at the bottom.
@@ -250,10 +281,10 @@ BOOST_AUTO_TEST_CASE(updatecoins_simulation_test)
stack.push_back(new CCoinsViewCacheTest(&base)); // Start with one cache.
// Track the txids we've used in various sets
- std::set<uint256> coinbaseids;
- std::set<uint256> disconnectedids;
- std::set<uint256> duplicateids;
- std::set<uint256> utxoset;
+ std::set<COutPoint> coinbase_coins;
+ std::set<COutPoint> disconnected_coins;
+ std::set<COutPoint> duplicate_coins;
+ std::set<COutPoint> utxoset;
for (unsigned int i = 0; i < NUM_SIMULATION_ITERATIONS; i++) {
uint32_t randiter = insecure_rand();
@@ -264,23 +295,24 @@ BOOST_AUTO_TEST_CASE(updatecoins_simulation_test)
tx.vin.resize(1);
tx.vout.resize(1);
tx.vout[0].nValue = i; //Keep txs unique unless intended to duplicate
+ tx.vout[0].scriptPubKey.assign(insecure_rand() & 0x3F, 0); // Random sizes so we can test memory usage accounting
unsigned int height = insecure_rand();
- CCoins oldcoins;
+ Coin old_coin;
// 2/20 times create a new coinbase
- if (randiter % 20 < 2 || coinbaseids.size() < 10) {
+ if (randiter % 20 < 2 || coinbase_coins.size() < 10) {
// 1/10 of those times create a duplicate coinbase
- if (insecure_rand() % 10 == 0 && coinbaseids.size()) {
- TxData &txd = FindRandomFrom(coinbaseids);
+ if (insecure_rand() % 10 == 0 && coinbase_coins.size()) {
+ auto utxod = FindRandomFrom(coinbase_coins);
// Reuse the exact same coinbase
- tx = std::get<0>(txd);
+ tx = std::get<0>(utxod->second);
// shouldn't be available for reconnection if its been duplicated
- disconnectedids.erase(tx.GetHash());
+ disconnected_coins.erase(utxod->first);
- duplicateids.insert(tx.GetHash());
+ duplicate_coins.insert(utxod->first);
}
else {
- coinbaseids.insert(tx.GetHash());
+ coinbase_coins.insert(COutPoint(tx.GetHash(), 0));
}
assert(CTransaction(tx).IsCoinBase());
}
@@ -288,114 +320,118 @@ BOOST_AUTO_TEST_CASE(updatecoins_simulation_test)
// 17/20 times reconnect previous or add a regular tx
else {
- uint256 prevouthash;
+ COutPoint prevout;
// 1/20 times reconnect a previously disconnected tx
- if (randiter % 20 == 2 && disconnectedids.size()) {
- TxData &txd = FindRandomFrom(disconnectedids);
- tx = std::get<0>(txd);
- prevouthash = tx.vin[0].prevout.hash;
- if (!CTransaction(tx).IsCoinBase() && !utxoset.count(prevouthash)) {
- disconnectedids.erase(tx.GetHash());
+ if (randiter % 20 == 2 && disconnected_coins.size()) {
+ auto utxod = FindRandomFrom(disconnected_coins);
+ tx = std::get<0>(utxod->second);
+ prevout = tx.vin[0].prevout;
+ if (!CTransaction(tx).IsCoinBase() && !utxoset.count(prevout)) {
+ disconnected_coins.erase(utxod->first);
continue;
}
// If this tx is already IN the UTXO, then it must be a coinbase, and it must be a duplicate
- if (utxoset.count(tx.GetHash())) {
+ if (utxoset.count(utxod->first)) {
assert(CTransaction(tx).IsCoinBase());
- assert(duplicateids.count(tx.GetHash()));
+ assert(duplicate_coins.count(utxod->first));
}
- disconnectedids.erase(tx.GetHash());
+ disconnected_coins.erase(utxod->first);
}
// 16/20 times create a regular tx
else {
- TxData &txd = FindRandomFrom(utxoset);
- prevouthash = std::get<0>(txd).GetHash();
+ auto utxod = FindRandomFrom(utxoset);
+ prevout = utxod->first;
// Construct the tx to spend the coins of prevouthash
- tx.vin[0].prevout.hash = prevouthash;
- tx.vin[0].prevout.n = 0;
+ tx.vin[0].prevout = prevout;
assert(!CTransaction(tx).IsCoinBase());
}
// In this simple test coins only have two states, spent or unspent, save the unspent state to restore
- oldcoins = result[prevouthash];
+ old_coin = result[prevout];
// Update the expected result of prevouthash to know these coins are spent
- result[prevouthash].Clear();
+ result[prevout].Clear();
- utxoset.erase(prevouthash);
+ utxoset.erase(prevout);
// The test is designed to ensure spending a duplicate coinbase will work properly
// if that ever happens and not resurrect the previously overwritten coinbase
- if (duplicateids.count(prevouthash))
+ if (duplicate_coins.count(prevout)) {
spent_a_duplicate_coinbase = true;
+ }
}
// Update the expected result to know about the new output coins
- result[tx.GetHash()].FromTx(tx, height);
+ assert(tx.vout.size() == 1);
+ const COutPoint outpoint(tx.GetHash(), 0);
+ result[outpoint] = Coin(tx.vout[0], height, CTransaction(tx).IsCoinBase());
// Call UpdateCoins on the top cache
CTxUndo undo;
UpdateCoins(tx, *(stack.back()), undo, height);
// Update the utxo set for future spends
- utxoset.insert(tx.GetHash());
+ utxoset.insert(outpoint);
// Track this tx and undo info to use later
- alltxs.insert(std::make_pair(tx.GetHash(),std::make_tuple(tx,undo,oldcoins)));
- }
-
- //1/20 times undo a previous transaction
- else if (utxoset.size()) {
- TxData &txd = FindRandomFrom(utxoset);
+ utxoData.emplace(outpoint, std::make_tuple(tx,undo,old_coin));
+ } else if (utxoset.size()) {
+ //1/20 times undo a previous transaction
+ auto utxod = FindRandomFrom(utxoset);
- CTransaction &tx = std::get<0>(txd);
- CTxUndo &undo = std::get<1>(txd);
- CCoins &origcoins = std::get<2>(txd);
-
- uint256 undohash = tx.GetHash();
+ CTransaction &tx = std::get<0>(utxod->second);
+ CTxUndo &undo = std::get<1>(utxod->second);
+ Coin &orig_coin = std::get<2>(utxod->second);
// Update the expected result
// Remove new outputs
- result[undohash].Clear();
+ result[utxod->first].Clear();
// If not coinbase restore prevout
if (!tx.IsCoinBase()) {
- result[tx.vin[0].prevout.hash] = origcoins;
+ result[tx.vin[0].prevout] = orig_coin;
}
// Disconnect the tx from the current UTXO
// See code in DisconnectBlock
// remove outputs
- {
- CCoinsModifier outs = stack.back()->ModifyCoins(undohash);
- outs->Clear();
- }
+ stack.back()->SpendCoin(utxod->first);
// restore inputs
if (!tx.IsCoinBase()) {
const COutPoint &out = tx.vin[0].prevout;
- const CTxInUndo &undoin = undo.vprevout[0];
- ApplyTxInUndo(undoin, *(stack.back()), out);
+ Coin coin = undo.vprevout[0];
+ ApplyTxInUndo(std::move(coin), *(stack.back()), out);
}
// Store as a candidate for reconnection
- disconnectedids.insert(undohash);
+ disconnected_coins.insert(utxod->first);
// Update the utxoset
- utxoset.erase(undohash);
+ utxoset.erase(utxod->first);
if (!tx.IsCoinBase())
- utxoset.insert(tx.vin[0].prevout.hash);
+ utxoset.insert(tx.vin[0].prevout);
}
// Once every 1000 iterations and at the end, verify the full cache.
if (insecure_rand() % 1000 == 1 || i == NUM_SIMULATION_ITERATIONS - 1) {
- for (std::map<uint256, CCoins>::iterator it = result.begin(); it != result.end(); it++) {
- const CCoins* coins = stack.back()->AccessCoins(it->first);
- if (coins) {
- BOOST_CHECK(*coins == it->second);
- } else {
- BOOST_CHECK(it->second.IsPruned());
- }
+ for (auto it = result.begin(); it != result.end(); it++) {
+ bool have = stack.back()->HaveCoin(it->first);
+ const Coin& coin = stack.back()->AccessCoin(it->first);
+ BOOST_CHECK(have == !coin.IsSpent());
+ BOOST_CHECK(coin == it->second);
}
}
+ // One every 10 iterations, remove a random entry from the cache
+ if (utxoset.size() > 1 && insecure_rand() % 30) {
+ stack[insecure_rand() % stack.size()]->Uncache(FindRandomFrom(utxoset)->first);
+ }
+ if (disconnected_coins.size() > 1 && insecure_rand() % 30) {
+ stack[insecure_rand() % stack.size()]->Uncache(FindRandomFrom(disconnected_coins)->first);
+ }
+ if (duplicate_coins.size() > 1 && insecure_rand() % 30) {
+ stack[insecure_rand() % stack.size()]->Uncache(FindRandomFrom(duplicate_coins)->first);
+ }
+
if (insecure_rand() % 100 == 0) {
// Every 100 iterations, flush an intermediate cache
if (stack.size() > 1 && insecure_rand() % 2 == 0) {
@@ -433,53 +469,36 @@ BOOST_AUTO_TEST_CASE(updatecoins_simulation_test)
BOOST_AUTO_TEST_CASE(ccoins_serialization)
{
// Good example
- CDataStream ss1(ParseHex("0104835800816115944e077fe7c803cfa57f29b36bf87c1d358bb85e"), SER_DISK, CLIENT_VERSION);
- CCoins cc1;
+ CDataStream ss1(ParseHex("97f23c835800816115944e077fe7c803cfa57f29b36bf87c1d35"), SER_DISK, CLIENT_VERSION);
+ Coin cc1;
ss1 >> cc1;
- BOOST_CHECK_EQUAL(cc1.nVersion, 1);
BOOST_CHECK_EQUAL(cc1.fCoinBase, false);
BOOST_CHECK_EQUAL(cc1.nHeight, 203998);
- BOOST_CHECK_EQUAL(cc1.vout.size(), 2);
- BOOST_CHECK_EQUAL(cc1.IsAvailable(0), false);
- BOOST_CHECK_EQUAL(cc1.IsAvailable(1), true);
- BOOST_CHECK_EQUAL(cc1.vout[1].nValue, 60000000000ULL);
- BOOST_CHECK_EQUAL(HexStr(cc1.vout[1].scriptPubKey), HexStr(GetScriptForDestination(CKeyID(uint160(ParseHex("816115944e077fe7c803cfa57f29b36bf87c1d35"))))));
+ BOOST_CHECK_EQUAL(cc1.out.nValue, 60000000000ULL);
+ BOOST_CHECK_EQUAL(HexStr(cc1.out.scriptPubKey), HexStr(GetScriptForDestination(CKeyID(uint160(ParseHex("816115944e077fe7c803cfa57f29b36bf87c1d35"))))));
// Good example
- CDataStream ss2(ParseHex("0109044086ef97d5790061b01caab50f1b8e9c50a5057eb43c2d9563a4eebbd123008c988f1a4a4de2161e0f50aac7f17e7f9555caa486af3b"), SER_DISK, CLIENT_VERSION);
- CCoins cc2;
+ CDataStream ss2(ParseHex("8ddf77bbd123008c988f1a4a4de2161e0f50aac7f17e7f9555caa4"), SER_DISK, CLIENT_VERSION);
+ Coin cc2;
ss2 >> cc2;
- BOOST_CHECK_EQUAL(cc2.nVersion, 1);
BOOST_CHECK_EQUAL(cc2.fCoinBase, true);
BOOST_CHECK_EQUAL(cc2.nHeight, 120891);
- BOOST_CHECK_EQUAL(cc2.vout.size(), 17);
- for (int i = 0; i < 17; i++) {
- BOOST_CHECK_EQUAL(cc2.IsAvailable(i), i == 4 || i == 16);
- }
- BOOST_CHECK_EQUAL(cc2.vout[4].nValue, 234925952);
- BOOST_CHECK_EQUAL(HexStr(cc2.vout[4].scriptPubKey), HexStr(GetScriptForDestination(CKeyID(uint160(ParseHex("61b01caab50f1b8e9c50a5057eb43c2d9563a4ee"))))));
- BOOST_CHECK_EQUAL(cc2.vout[16].nValue, 110397);
- BOOST_CHECK_EQUAL(HexStr(cc2.vout[16].scriptPubKey), HexStr(GetScriptForDestination(CKeyID(uint160(ParseHex("8c988f1a4a4de2161e0f50aac7f17e7f9555caa4"))))));
+ BOOST_CHECK_EQUAL(cc2.out.nValue, 110397);
+ BOOST_CHECK_EQUAL(HexStr(cc2.out.scriptPubKey), HexStr(GetScriptForDestination(CKeyID(uint160(ParseHex("8c988f1a4a4de2161e0f50aac7f17e7f9555caa4"))))));
// Smallest possible example
- CDataStream ssx(SER_DISK, CLIENT_VERSION);
- BOOST_CHECK_EQUAL(HexStr(ssx.begin(), ssx.end()), "");
-
- CDataStream ss3(ParseHex("0002000600"), SER_DISK, CLIENT_VERSION);
- CCoins cc3;
+ CDataStream ss3(ParseHex("000006"), SER_DISK, CLIENT_VERSION);
+ Coin cc3;
ss3 >> cc3;
- BOOST_CHECK_EQUAL(cc3.nVersion, 0);
BOOST_CHECK_EQUAL(cc3.fCoinBase, false);
BOOST_CHECK_EQUAL(cc3.nHeight, 0);
- BOOST_CHECK_EQUAL(cc3.vout.size(), 1);
- BOOST_CHECK_EQUAL(cc3.IsAvailable(0), true);
- BOOST_CHECK_EQUAL(cc3.vout[0].nValue, 0);
- BOOST_CHECK_EQUAL(cc3.vout[0].scriptPubKey.size(), 0);
+ BOOST_CHECK_EQUAL(cc3.out.nValue, 0);
+ BOOST_CHECK_EQUAL(cc3.out.scriptPubKey.size(), 0);
// scriptPubKey that ends beyond the end of the stream
- CDataStream ss4(ParseHex("0002000800"), SER_DISK, CLIENT_VERSION);
+ CDataStream ss4(ParseHex("000007"), SER_DISK, CLIENT_VERSION);
try {
- CCoins cc4;
+ Coin cc4;
ss4 >> cc4;
BOOST_CHECK_MESSAGE(false, "We should have thrown");
} catch (const std::ios_base::failure& e) {
@@ -490,16 +509,16 @@ BOOST_AUTO_TEST_CASE(ccoins_serialization)
uint64_t x = 3000000000ULL;
tmp << VARINT(x);
BOOST_CHECK_EQUAL(HexStr(tmp.begin(), tmp.end()), "8a95c0bb00");
- CDataStream ss5(ParseHex("0002008a95c0bb0000"), SER_DISK, CLIENT_VERSION);
+ CDataStream ss5(ParseHex("00008a95c0bb00"), SER_DISK, CLIENT_VERSION);
try {
- CCoins cc5;
+ Coin cc5;
ss5 >> cc5;
BOOST_CHECK_MESSAGE(false, "We should have thrown");
} catch (const std::ios_base::failure& e) {
}
}
-const static uint256 TXID;
+const static COutPoint OUTPOINT;
const static CAmount PRUNED = -1;
const static CAmount ABSENT = -2;
const static CAmount FAIL = -3;
@@ -514,15 +533,15 @@ const static auto FLAGS = {char(0), FRESH, DIRTY, char(DIRTY | FRESH)};
const static auto CLEAN_FLAGS = {char(0), FRESH};
const static auto ABSENT_FLAGS = {NO_ENTRY};
-void SetCoinsValue(CAmount value, CCoins& coins)
+void SetCoinsValue(CAmount value, Coin& coin)
{
assert(value != ABSENT);
- coins.Clear();
- assert(coins.IsPruned());
+ coin.Clear();
+ assert(coin.IsSpent());
if (value != PRUNED) {
- coins.vout.emplace_back();
- coins.vout.back().nValue = value;
- assert(!coins.IsPruned());
+ coin.out.nValue = value;
+ coin.nHeight = 1;
+ assert(!coin.IsSpent());
}
}
@@ -535,25 +554,23 @@ size_t InsertCoinsMapEntry(CCoinsMap& map, CAmount value, char flags)
assert(flags != NO_ENTRY);
CCoinsCacheEntry entry;
entry.flags = flags;
- SetCoinsValue(value, entry.coins);
- auto inserted = map.emplace(TXID, std::move(entry));
+ SetCoinsValue(value, entry.coin);
+ auto inserted = map.emplace(OUTPOINT, std::move(entry));
assert(inserted.second);
- return inserted.first->second.coins.DynamicMemoryUsage();
+ return inserted.first->second.coin.DynamicMemoryUsage();
}
void GetCoinsMapEntry(const CCoinsMap& map, CAmount& value, char& flags)
{
- auto it = map.find(TXID);
+ auto it = map.find(OUTPOINT);
if (it == map.end()) {
value = ABSENT;
flags = NO_ENTRY;
} else {
- if (it->second.coins.IsPruned()) {
- assert(it->second.coins.vout.size() == 0);
+ if (it->second.coin.IsSpent()) {
value = PRUNED;
} else {
- assert(it->second.coins.vout.size() == 1);
- value = it->second.coins.vout[0].nValue;
+ value = it->second.coin.out.nValue;
}
flags = it->second.flags;
assert(flags != NO_ENTRY);
@@ -581,10 +598,10 @@ public:
CCoinsViewCacheTest cache{&base};
};
-void CheckAccessCoins(CAmount base_value, CAmount cache_value, CAmount expected_value, char cache_flags, char expected_flags)
+void CheckAccessCoin(CAmount base_value, CAmount cache_value, CAmount expected_value, char cache_flags, char expected_flags)
{
SingleEntryCacheTest test(base_value, cache_value, cache_flags);
- test.cache.AccessCoins(TXID);
+ test.cache.AccessCoin(OUTPOINT);
test.cache.SelfTest();
CAmount result_value;
@@ -603,39 +620,39 @@ BOOST_AUTO_TEST_CASE(ccoins_access)
* Base Cache Result Cache Result
* Value Value Value Flags Flags
*/
- CheckAccessCoins(ABSENT, ABSENT, ABSENT, NO_ENTRY , NO_ENTRY );
- CheckAccessCoins(ABSENT, PRUNED, PRUNED, 0 , 0 );
- CheckAccessCoins(ABSENT, PRUNED, PRUNED, FRESH , FRESH );
- CheckAccessCoins(ABSENT, PRUNED, PRUNED, DIRTY , DIRTY );
- CheckAccessCoins(ABSENT, PRUNED, PRUNED, DIRTY|FRESH, DIRTY|FRESH);
- CheckAccessCoins(ABSENT, VALUE2, VALUE2, 0 , 0 );
- CheckAccessCoins(ABSENT, VALUE2, VALUE2, FRESH , FRESH );
- CheckAccessCoins(ABSENT, VALUE2, VALUE2, DIRTY , DIRTY );
- CheckAccessCoins(ABSENT, VALUE2, VALUE2, DIRTY|FRESH, DIRTY|FRESH);
- CheckAccessCoins(PRUNED, ABSENT, PRUNED, NO_ENTRY , FRESH );
- CheckAccessCoins(PRUNED, PRUNED, PRUNED, 0 , 0 );
- CheckAccessCoins(PRUNED, PRUNED, PRUNED, FRESH , FRESH );
- CheckAccessCoins(PRUNED, PRUNED, PRUNED, DIRTY , DIRTY );
- CheckAccessCoins(PRUNED, PRUNED, PRUNED, DIRTY|FRESH, DIRTY|FRESH);
- CheckAccessCoins(PRUNED, VALUE2, VALUE2, 0 , 0 );
- CheckAccessCoins(PRUNED, VALUE2, VALUE2, FRESH , FRESH );
- CheckAccessCoins(PRUNED, VALUE2, VALUE2, DIRTY , DIRTY );
- CheckAccessCoins(PRUNED, VALUE2, VALUE2, DIRTY|FRESH, DIRTY|FRESH);
- CheckAccessCoins(VALUE1, ABSENT, VALUE1, NO_ENTRY , 0 );
- CheckAccessCoins(VALUE1, PRUNED, PRUNED, 0 , 0 );
- CheckAccessCoins(VALUE1, PRUNED, PRUNED, FRESH , FRESH );
- CheckAccessCoins(VALUE1, PRUNED, PRUNED, DIRTY , DIRTY );
- CheckAccessCoins(VALUE1, PRUNED, PRUNED, DIRTY|FRESH, DIRTY|FRESH);
- CheckAccessCoins(VALUE1, VALUE2, VALUE2, 0 , 0 );
- CheckAccessCoins(VALUE1, VALUE2, VALUE2, FRESH , FRESH );
- CheckAccessCoins(VALUE1, VALUE2, VALUE2, DIRTY , DIRTY );
- CheckAccessCoins(VALUE1, VALUE2, VALUE2, DIRTY|FRESH, DIRTY|FRESH);
+ CheckAccessCoin(ABSENT, ABSENT, ABSENT, NO_ENTRY , NO_ENTRY );
+ CheckAccessCoin(ABSENT, PRUNED, PRUNED, 0 , 0 );
+ CheckAccessCoin(ABSENT, PRUNED, PRUNED, FRESH , FRESH );
+ CheckAccessCoin(ABSENT, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckAccessCoin(ABSENT, PRUNED, PRUNED, DIRTY|FRESH, DIRTY|FRESH);
+ CheckAccessCoin(ABSENT, VALUE2, VALUE2, 0 , 0 );
+ CheckAccessCoin(ABSENT, VALUE2, VALUE2, FRESH , FRESH );
+ CheckAccessCoin(ABSENT, VALUE2, VALUE2, DIRTY , DIRTY );
+ CheckAccessCoin(ABSENT, VALUE2, VALUE2, DIRTY|FRESH, DIRTY|FRESH);
+ CheckAccessCoin(PRUNED, ABSENT, PRUNED, NO_ENTRY , FRESH );
+ CheckAccessCoin(PRUNED, PRUNED, PRUNED, 0 , 0 );
+ CheckAccessCoin(PRUNED, PRUNED, PRUNED, FRESH , FRESH );
+ CheckAccessCoin(PRUNED, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckAccessCoin(PRUNED, PRUNED, PRUNED, DIRTY|FRESH, DIRTY|FRESH);
+ CheckAccessCoin(PRUNED, VALUE2, VALUE2, 0 , 0 );
+ CheckAccessCoin(PRUNED, VALUE2, VALUE2, FRESH , FRESH );
+ CheckAccessCoin(PRUNED, VALUE2, VALUE2, DIRTY , DIRTY );
+ CheckAccessCoin(PRUNED, VALUE2, VALUE2, DIRTY|FRESH, DIRTY|FRESH);
+ CheckAccessCoin(VALUE1, ABSENT, VALUE1, NO_ENTRY , 0 );
+ CheckAccessCoin(VALUE1, PRUNED, PRUNED, 0 , 0 );
+ CheckAccessCoin(VALUE1, PRUNED, PRUNED, FRESH , FRESH );
+ CheckAccessCoin(VALUE1, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckAccessCoin(VALUE1, PRUNED, PRUNED, DIRTY|FRESH, DIRTY|FRESH);
+ CheckAccessCoin(VALUE1, VALUE2, VALUE2, 0 , 0 );
+ CheckAccessCoin(VALUE1, VALUE2, VALUE2, FRESH , FRESH );
+ CheckAccessCoin(VALUE1, VALUE2, VALUE2, DIRTY , DIRTY );
+ CheckAccessCoin(VALUE1, VALUE2, VALUE2, DIRTY|FRESH, DIRTY|FRESH);
}
-void CheckModifyCoins(CAmount base_value, CAmount cache_value, CAmount modify_value, CAmount expected_value, char cache_flags, char expected_flags)
+void CheckSpendCoins(CAmount base_value, CAmount cache_value, CAmount expected_value, char cache_flags, char expected_flags)
{
SingleEntryCacheTest test(base_value, cache_value, cache_flags);
- SetCoinsValue(modify_value, *test.cache.ModifyCoins(TXID));
+ test.cache.SpendCoin(OUTPOINT);
test.cache.SelfTest();
CAmount result_value;
@@ -645,79 +662,55 @@ void CheckModifyCoins(CAmount base_value, CAmount cache_value, CAmount modify_va
BOOST_CHECK_EQUAL(result_flags, expected_flags);
};
-BOOST_AUTO_TEST_CASE(ccoins_modify)
+BOOST_AUTO_TEST_CASE(ccoins_spend)
{
- /* Check ModifyCoin behavior, requesting a coin from a cache view layered on
- * top of a base view, writing a modification to the coin, and then checking
+ /* Check SpendCoin behavior, requesting a coin from a cache view layered on
+ * top of a base view, spending, and then checking
* the resulting entry in the cache after the modification.
*
- * Base Cache Write Result Cache Result
- * Value Value Value Value Flags Flags
+ * Base Cache Result Cache Result
+ * Value Value Value Flags Flags
*/
- CheckModifyCoins(ABSENT, ABSENT, PRUNED, ABSENT, NO_ENTRY , NO_ENTRY );
- CheckModifyCoins(ABSENT, ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY|FRESH);
- CheckModifyCoins(ABSENT, PRUNED, PRUNED, PRUNED, 0 , DIRTY );
- CheckModifyCoins(ABSENT, PRUNED, PRUNED, ABSENT, FRESH , NO_ENTRY );
- CheckModifyCoins(ABSENT, PRUNED, PRUNED, PRUNED, DIRTY , DIRTY );
- CheckModifyCoins(ABSENT, PRUNED, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
- CheckModifyCoins(ABSENT, PRUNED, VALUE3, VALUE3, 0 , DIRTY );
- CheckModifyCoins(ABSENT, PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
- CheckModifyCoins(ABSENT, PRUNED, VALUE3, VALUE3, DIRTY , DIRTY );
- CheckModifyCoins(ABSENT, PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
- CheckModifyCoins(ABSENT, VALUE2, PRUNED, PRUNED, 0 , DIRTY );
- CheckModifyCoins(ABSENT, VALUE2, PRUNED, ABSENT, FRESH , NO_ENTRY );
- CheckModifyCoins(ABSENT, VALUE2, PRUNED, PRUNED, DIRTY , DIRTY );
- CheckModifyCoins(ABSENT, VALUE2, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
- CheckModifyCoins(ABSENT, VALUE2, VALUE3, VALUE3, 0 , DIRTY );
- CheckModifyCoins(ABSENT, VALUE2, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
- CheckModifyCoins(ABSENT, VALUE2, VALUE3, VALUE3, DIRTY , DIRTY );
- CheckModifyCoins(ABSENT, VALUE2, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
- CheckModifyCoins(PRUNED, ABSENT, PRUNED, ABSENT, NO_ENTRY , NO_ENTRY );
- CheckModifyCoins(PRUNED, ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY|FRESH);
- CheckModifyCoins(PRUNED, PRUNED, PRUNED, PRUNED, 0 , DIRTY );
- CheckModifyCoins(PRUNED, PRUNED, PRUNED, ABSENT, FRESH , NO_ENTRY );
- CheckModifyCoins(PRUNED, PRUNED, PRUNED, PRUNED, DIRTY , DIRTY );
- CheckModifyCoins(PRUNED, PRUNED, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
- CheckModifyCoins(PRUNED, PRUNED, VALUE3, VALUE3, 0 , DIRTY );
- CheckModifyCoins(PRUNED, PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
- CheckModifyCoins(PRUNED, PRUNED, VALUE3, VALUE3, DIRTY , DIRTY );
- CheckModifyCoins(PRUNED, PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
- CheckModifyCoins(PRUNED, VALUE2, PRUNED, PRUNED, 0 , DIRTY );
- CheckModifyCoins(PRUNED, VALUE2, PRUNED, ABSENT, FRESH , NO_ENTRY );
- CheckModifyCoins(PRUNED, VALUE2, PRUNED, PRUNED, DIRTY , DIRTY );
- CheckModifyCoins(PRUNED, VALUE2, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
- CheckModifyCoins(PRUNED, VALUE2, VALUE3, VALUE3, 0 , DIRTY );
- CheckModifyCoins(PRUNED, VALUE2, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
- CheckModifyCoins(PRUNED, VALUE2, VALUE3, VALUE3, DIRTY , DIRTY );
- CheckModifyCoins(PRUNED, VALUE2, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
- CheckModifyCoins(VALUE1, ABSENT, PRUNED, PRUNED, NO_ENTRY , DIRTY );
- CheckModifyCoins(VALUE1, ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY );
- CheckModifyCoins(VALUE1, PRUNED, PRUNED, PRUNED, 0 , DIRTY );
- CheckModifyCoins(VALUE1, PRUNED, PRUNED, ABSENT, FRESH , NO_ENTRY );
- CheckModifyCoins(VALUE1, PRUNED, PRUNED, PRUNED, DIRTY , DIRTY );
- CheckModifyCoins(VALUE1, PRUNED, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
- CheckModifyCoins(VALUE1, PRUNED, VALUE3, VALUE3, 0 , DIRTY );
- CheckModifyCoins(VALUE1, PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
- CheckModifyCoins(VALUE1, PRUNED, VALUE3, VALUE3, DIRTY , DIRTY );
- CheckModifyCoins(VALUE1, PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
- CheckModifyCoins(VALUE1, VALUE2, PRUNED, PRUNED, 0 , DIRTY );
- CheckModifyCoins(VALUE1, VALUE2, PRUNED, ABSENT, FRESH , NO_ENTRY );
- CheckModifyCoins(VALUE1, VALUE2, PRUNED, PRUNED, DIRTY , DIRTY );
- CheckModifyCoins(VALUE1, VALUE2, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
- CheckModifyCoins(VALUE1, VALUE2, VALUE3, VALUE3, 0 , DIRTY );
- CheckModifyCoins(VALUE1, VALUE2, VALUE3, VALUE3, FRESH , DIRTY|FRESH);
- CheckModifyCoins(VALUE1, VALUE2, VALUE3, VALUE3, DIRTY , DIRTY );
- CheckModifyCoins(VALUE1, VALUE2, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH);
+ CheckSpendCoins(ABSENT, ABSENT, ABSENT, NO_ENTRY , NO_ENTRY );
+ CheckSpendCoins(ABSENT, PRUNED, PRUNED, 0 , DIRTY );
+ CheckSpendCoins(ABSENT, PRUNED, ABSENT, FRESH , NO_ENTRY );
+ CheckSpendCoins(ABSENT, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckSpendCoins(ABSENT, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
+ CheckSpendCoins(ABSENT, VALUE2, PRUNED, 0 , DIRTY );
+ CheckSpendCoins(ABSENT, VALUE2, ABSENT, FRESH , NO_ENTRY );
+ CheckSpendCoins(ABSENT, VALUE2, PRUNED, DIRTY , DIRTY );
+ CheckSpendCoins(ABSENT, VALUE2, ABSENT, DIRTY|FRESH, NO_ENTRY );
+ CheckSpendCoins(PRUNED, ABSENT, ABSENT, NO_ENTRY , NO_ENTRY );
+ CheckSpendCoins(PRUNED, PRUNED, PRUNED, 0 , DIRTY );
+ CheckSpendCoins(PRUNED, PRUNED, ABSENT, FRESH , NO_ENTRY );
+ CheckSpendCoins(PRUNED, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckSpendCoins(PRUNED, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
+ CheckSpendCoins(PRUNED, VALUE2, PRUNED, 0 , DIRTY );
+ CheckSpendCoins(PRUNED, VALUE2, ABSENT, FRESH , NO_ENTRY );
+ CheckSpendCoins(PRUNED, VALUE2, PRUNED, DIRTY , DIRTY );
+ CheckSpendCoins(PRUNED, VALUE2, ABSENT, DIRTY|FRESH, NO_ENTRY );
+ CheckSpendCoins(VALUE1, ABSENT, PRUNED, NO_ENTRY , DIRTY );
+ CheckSpendCoins(VALUE1, PRUNED, PRUNED, 0 , DIRTY );
+ CheckSpendCoins(VALUE1, PRUNED, ABSENT, FRESH , NO_ENTRY );
+ CheckSpendCoins(VALUE1, PRUNED, PRUNED, DIRTY , DIRTY );
+ CheckSpendCoins(VALUE1, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY );
+ CheckSpendCoins(VALUE1, VALUE2, PRUNED, 0 , DIRTY );
+ CheckSpendCoins(VALUE1, VALUE2, ABSENT, FRESH , NO_ENTRY );
+ CheckSpendCoins(VALUE1, VALUE2, PRUNED, DIRTY , DIRTY );
+ CheckSpendCoins(VALUE1, VALUE2, ABSENT, DIRTY|FRESH, NO_ENTRY );
}
-void CheckModifyNewCoinsBase(CAmount base_value, CAmount cache_value, CAmount modify_value, CAmount expected_value, char cache_flags, char expected_flags, bool coinbase)
+void CheckAddCoinBase(CAmount base_value, CAmount cache_value, CAmount modify_value, CAmount expected_value, char cache_flags, char expected_flags, bool coinbase)
{
SingleEntryCacheTest test(base_value, cache_value, cache_flags);
CAmount result_value;
char result_flags;
try {
- SetCoinsValue(modify_value, *test.cache.ModifyNewCoins(TXID, coinbase));
+ CTxOut output;
+ output.nValue = modify_value;
+ test.cache.AddCoin(OUTPOINT, Coin(std::move(output), 1, coinbase), coinbase);
+ test.cache.SelfTest();
GetCoinsMapEntry(test.cache.map(), result_value, result_flags);
} catch (std::logic_error& e) {
result_value = FAIL;
@@ -728,64 +721,46 @@ void CheckModifyNewCoinsBase(CAmount base_value, CAmount cache_value, CAmount mo
BOOST_CHECK_EQUAL(result_flags, expected_flags);
}
-// Simple wrapper for CheckModifyNewCoinsBase function above that loops through
+// Simple wrapper for CheckAddCoinBase function above that loops through
// different possible base_values, making sure each one gives the same results.
-// This wrapper lets the modify_new test below be shorter and less repetitive,
-// while still verifying that the CoinsViewCache::ModifyNewCoins implementation
+// This wrapper lets the coins_add test below be shorter and less repetitive,
+// while still verifying that the CoinsViewCache::AddCoin implementation
// ignores base values.
template <typename... Args>
-void CheckModifyNewCoins(Args&&... args)
+void CheckAddCoin(Args&&... args)
{
for (CAmount base_value : {ABSENT, PRUNED, VALUE1})
- CheckModifyNewCoinsBase(base_value, std::forward<Args>(args)...);
+ CheckAddCoinBase(base_value, std::forward<Args>(args)...);
}
-BOOST_AUTO_TEST_CASE(ccoins_modify_new)
+BOOST_AUTO_TEST_CASE(ccoins_add)
{
- /* Check ModifyNewCoin behavior, requesting a new coin from a cache view,
+ /* Check AddCoin behavior, requesting a new coin from a cache view,
* writing a modification to the coin, and then checking the resulting
* entry in the cache after the modification. Verify behavior with the
- * with the ModifyNewCoin coinbase argument set to false, and to true.
+ * with the AddCoin potential_overwrite argument set to false, and to true.
*
- * Cache Write Result Cache Result Coinbase
- * Value Value Value Flags Flags
+ * Cache Write Result Cache Result potential_overwrite
+ * Value Value Value Flags Flags
*/
- CheckModifyNewCoins(ABSENT, PRUNED, ABSENT, NO_ENTRY , NO_ENTRY , false);
- CheckModifyNewCoins(ABSENT, PRUNED, PRUNED, NO_ENTRY , DIRTY , true );
- CheckModifyNewCoins(ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY|FRESH, false);
- CheckModifyNewCoins(ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY , true );
- CheckModifyNewCoins(PRUNED, PRUNED, ABSENT, 0 , NO_ENTRY , false);
- CheckModifyNewCoins(PRUNED, PRUNED, PRUNED, 0 , DIRTY , true );
- CheckModifyNewCoins(PRUNED, PRUNED, ABSENT, FRESH , NO_ENTRY , false);
- CheckModifyNewCoins(PRUNED, PRUNED, ABSENT, FRESH , NO_ENTRY , true );
- CheckModifyNewCoins(PRUNED, PRUNED, PRUNED, DIRTY , DIRTY , false);
- CheckModifyNewCoins(PRUNED, PRUNED, PRUNED, DIRTY , DIRTY , true );
- CheckModifyNewCoins(PRUNED, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY , false);
- CheckModifyNewCoins(PRUNED, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY , true );
- CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, 0 , DIRTY|FRESH, false);
- CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, 0 , DIRTY , true );
- CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH, false);
- CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH, true );
- CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, DIRTY , DIRTY , false);
- CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, DIRTY , DIRTY , true );
- CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH, false);
- CheckModifyNewCoins(PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH, true );
- CheckModifyNewCoins(VALUE2, PRUNED, FAIL , 0 , NO_ENTRY , false);
- CheckModifyNewCoins(VALUE2, PRUNED, PRUNED, 0 , DIRTY , true );
- CheckModifyNewCoins(VALUE2, PRUNED, FAIL , FRESH , NO_ENTRY , false);
- CheckModifyNewCoins(VALUE2, PRUNED, ABSENT, FRESH , NO_ENTRY , true );
- CheckModifyNewCoins(VALUE2, PRUNED, FAIL , DIRTY , NO_ENTRY , false);
- CheckModifyNewCoins(VALUE2, PRUNED, PRUNED, DIRTY , DIRTY , true );
- CheckModifyNewCoins(VALUE2, PRUNED, FAIL , DIRTY|FRESH, NO_ENTRY , false);
- CheckModifyNewCoins(VALUE2, PRUNED, ABSENT, DIRTY|FRESH, NO_ENTRY , true );
- CheckModifyNewCoins(VALUE2, VALUE3, FAIL , 0 , NO_ENTRY , false);
- CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, 0 , DIRTY , true );
- CheckModifyNewCoins(VALUE2, VALUE3, FAIL , FRESH , NO_ENTRY , false);
- CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, FRESH , DIRTY|FRESH, true );
- CheckModifyNewCoins(VALUE2, VALUE3, FAIL , DIRTY , NO_ENTRY , false);
- CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, DIRTY , DIRTY , true );
- CheckModifyNewCoins(VALUE2, VALUE3, FAIL , DIRTY|FRESH, NO_ENTRY , false);
- CheckModifyNewCoins(VALUE2, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH, true );
+ CheckAddCoin(ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY|FRESH, false);
+ CheckAddCoin(ABSENT, VALUE3, VALUE3, NO_ENTRY , DIRTY , true );
+ CheckAddCoin(PRUNED, VALUE3, VALUE3, 0 , DIRTY|FRESH, false);
+ CheckAddCoin(PRUNED, VALUE3, VALUE3, 0 , DIRTY , true );
+ CheckAddCoin(PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH, false);
+ CheckAddCoin(PRUNED, VALUE3, VALUE3, FRESH , DIRTY|FRESH, true );
+ CheckAddCoin(PRUNED, VALUE3, VALUE3, DIRTY , DIRTY , false);
+ CheckAddCoin(PRUNED, VALUE3, VALUE3, DIRTY , DIRTY , true );
+ CheckAddCoin(PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH, false);
+ CheckAddCoin(PRUNED, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH, true );
+ CheckAddCoin(VALUE2, VALUE3, FAIL , 0 , NO_ENTRY , false);
+ CheckAddCoin(VALUE2, VALUE3, VALUE3, 0 , DIRTY , true );
+ CheckAddCoin(VALUE2, VALUE3, FAIL , FRESH , NO_ENTRY , false);
+ CheckAddCoin(VALUE2, VALUE3, VALUE3, FRESH , DIRTY|FRESH, true );
+ CheckAddCoin(VALUE2, VALUE3, FAIL , DIRTY , NO_ENTRY , false);
+ CheckAddCoin(VALUE2, VALUE3, VALUE3, DIRTY , DIRTY , true );
+ CheckAddCoin(VALUE2, VALUE3, FAIL , DIRTY|FRESH, NO_ENTRY , false);
+ CheckAddCoin(VALUE2, VALUE3, VALUE3, DIRTY|FRESH, DIRTY|FRESH, true );
}
void CheckWriteCoins(CAmount parent_value, CAmount child_value, CAmount expected_value, char parent_flags, char child_flags, char expected_flags)
diff --git a/src/test/hash_tests.cpp b/src/test/hash_tests.cpp
index d8de765db1..bb7e473248 100644
--- a/src/test/hash_tests.cpp
+++ b/src/test/hash_tests.cpp
@@ -128,6 +128,23 @@ BOOST_AUTO_TEST_CASE(siphash)
tx.nVersion = 1;
ss << tx;
BOOST_CHECK_EQUAL(SipHashUint256(1, 2, ss.GetHash()), 0x79751e980c2a0a35ULL);
+
+ // Check consistency between CSipHasher and SipHashUint256[Extra].
+ FastRandomContext ctx;
+ for (int i = 0; i < 16; ++i) {
+ uint64_t k1 = ctx.rand64();
+ uint64_t k2 = ctx.rand64();
+ uint256 x = GetRandHash();
+ uint32_t n = ctx.rand32();
+ uint8_t nb[4];
+ WriteLE32(nb, n);
+ CSipHasher sip256(k1, k2);
+ sip256.Write(x.begin(), 32);
+ CSipHasher sip288 = sip256;
+ sip288.Write(nb, 4);
+ BOOST_CHECK_EQUAL(SipHashUint256(k1, k2, x), sip256.Finalize());
+ BOOST_CHECK_EQUAL(SipHashUint256Extra(k1, k2, x, n), sip288.Finalize());
+ }
}
BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/script_P2SH_tests.cpp b/src/test/script_P2SH_tests.cpp
index ede68f23d7..0789b2e80c 100644
--- a/src/test/script_P2SH_tests.cpp
+++ b/src/test/script_P2SH_tests.cpp
@@ -112,7 +112,8 @@ BOOST_AUTO_TEST_CASE(sign)
{
CScript sigSave = txTo[i].vin[0].scriptSig;
txTo[i].vin[0].scriptSig = txTo[j].vin[0].scriptSig;
- bool sigOK = CScriptCheck(CCoins(txFrom, 0), txTo[i], 0, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_STRICTENC, false, &txdata)();
+ const CTxOut& output = txFrom.vout[txTo[i].vin[0].prevout.n];
+ bool sigOK = CScriptCheck(output.scriptPubKey, output.nValue, txTo[i], 0, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_STRICTENC, false, &txdata)();
if (i == j)
BOOST_CHECK_MESSAGE(sigOK, strprintf("VerifySignature %d %d", i, j));
else
@@ -316,7 +317,7 @@ BOOST_AUTO_TEST_CASE(AreInputsStandard)
txFrom.vout[6].scriptPubKey = GetScriptForDestination(CScriptID(twentySigops));
txFrom.vout[6].nValue = 6000;
- coins.ModifyCoins(txFrom.GetHash())->FromTx(txFrom, 0);
+ AddCoins(coins, txFrom, 0);
CMutableTransaction txTo;
txTo.vout.resize(1);
diff --git a/src/test/sigopcount_tests.cpp b/src/test/sigopcount_tests.cpp
index 92781d763d..4e117448fe 100644
--- a/src/test/sigopcount_tests.cpp
+++ b/src/test/sigopcount_tests.cpp
@@ -102,7 +102,7 @@ void BuildTxs(CMutableTransaction& spendingTx, CCoinsViewCache& coins, CMutableT
spendingTx.vout[0].nValue = 1;
spendingTx.vout[0].scriptPubKey = CScript();
- coins.ModifyCoins(creationTx.GetHash())->FromTx(creationTx, 0);
+ AddCoins(coins, creationTx, 0);
}
BOOST_AUTO_TEST_CASE(GetTxSigOpCost)
diff --git a/src/test/test_bitcoin_fuzzy.cpp b/src/test/test_bitcoin_fuzzy.cpp
index e11e46bb02..de14251601 100644
--- a/src/test/test_bitcoin_fuzzy.cpp
+++ b/src/test/test_bitcoin_fuzzy.cpp
@@ -168,8 +168,8 @@ int do_fuzz()
{
try
{
- CCoins block;
- ds >> block;
+ Coin coin;
+ ds >> coin;
} catch (const std::ios_base::failure& e) {return 0;}
break;
}
diff --git a/src/test/transaction_tests.cpp b/src/test/transaction_tests.cpp
index 67610301d7..5c7516fbf1 100644
--- a/src/test/transaction_tests.cpp
+++ b/src/test/transaction_tests.cpp
@@ -307,14 +307,14 @@ SetupDummyInputs(CBasicKeyStore& keystoreRet, CCoinsViewCache& coinsRet)
dummyTransactions[0].vout[0].scriptPubKey << ToByteVector(key[0].GetPubKey()) << OP_CHECKSIG;
dummyTransactions[0].vout[1].nValue = 50*CENT;
dummyTransactions[0].vout[1].scriptPubKey << ToByteVector(key[1].GetPubKey()) << OP_CHECKSIG;
- coinsRet.ModifyCoins(dummyTransactions[0].GetHash())->FromTx(dummyTransactions[0], 0);
+ AddCoins(coinsRet, dummyTransactions[0], 0);
dummyTransactions[1].vout.resize(2);
dummyTransactions[1].vout[0].nValue = 21*CENT;
dummyTransactions[1].vout[0].scriptPubKey = GetScriptForDestination(key[2].GetPubKey().GetID());
dummyTransactions[1].vout[1].nValue = 22*CENT;
dummyTransactions[1].vout[1].scriptPubKey = GetScriptForDestination(key[3].GetPubKey().GetID());
- coinsRet.ModifyCoins(dummyTransactions[1].GetHash())->FromTx(dummyTransactions[1], 0);
+ AddCoins(coinsRet, dummyTransactions[1], 0);
return dummyTransactions;
}
@@ -470,19 +470,20 @@ BOOST_AUTO_TEST_CASE(test_big_witness_transaction) {
for (int i=0; i<20; i++)
threadGroup.create_thread(boost::bind(&CCheckQueue<CScriptCheck>::Thread, boost::ref(scriptcheckqueue)));
- CCoins coins;
- coins.nVersion = 1;
- coins.fCoinBase = false;
+ std::vector<Coin> coins;
for(uint32_t i = 0; i < mtx.vin.size(); i++) {
- CTxOut txout;
- txout.nValue = 1000;
- txout.scriptPubKey = scriptPubKey;
- coins.vout.push_back(txout);
+ Coin coin;
+ coin.nHeight = 1;
+ coin.fCoinBase = false;
+ coin.out.nValue = 1000;
+ coin.out.scriptPubKey = scriptPubKey;
+ coins.emplace_back(std::move(coin));
}
for(uint32_t i = 0; i < mtx.vin.size(); i++) {
std::vector<CScriptCheck> vChecks;
- CScriptCheck check(coins, tx, i, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, false, &txdata);
+ const CTxOut& output = coins[tx.vin[i].prevout.n].out;
+ CScriptCheck check(output.scriptPubKey, output.nValue, tx, i, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, false, &txdata);
vChecks.push_back(CScriptCheck());
check.swap(vChecks.back());
control.Add(vChecks);
diff --git a/src/txdb.cpp b/src/txdb.cpp
index 76aab23983..c8f5090293 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -14,6 +14,7 @@
#include <boost/thread.hpp>
+static const char DB_COIN = 'C';
static const char DB_COINS = 'c';
static const char DB_BLOCK_FILES = 'f';
static const char DB_TXINDEX = 't';
@@ -24,17 +25,40 @@ static const char DB_FLAG = 'F';
static const char DB_REINDEX_FLAG = 'R';
static const char DB_LAST_BLOCK = 'l';
+namespace {
+
+struct CoinEntry {
+ COutPoint* outpoint;
+ char key;
+ CoinEntry(const COutPoint* ptr) : outpoint(const_cast<COutPoint*>(ptr)), key(DB_COIN) {}
+
+ template<typename Stream>
+ void Serialize(Stream &s) const {
+ s << key;
+ s << outpoint->hash;
+ s << VARINT(outpoint->n);
+ }
+
+ template<typename Stream>
+ void Unserialize(Stream& s) {
+ s >> key;
+ s >> outpoint->hash;
+ s >> VARINT(outpoint->n);
+ }
+};
+
+}
CCoinsViewDB::CCoinsViewDB(size_t nCacheSize, bool fMemory, bool fWipe) : db(GetDataDir() / "chainstate", nCacheSize, fMemory, fWipe, true)
{
}
-bool CCoinsViewDB::GetCoins(const uint256 &txid, CCoins &coins) const {
- return db.Read(std::make_pair(DB_COINS, txid), coins);
+bool CCoinsViewDB::GetCoin(const COutPoint &outpoint, Coin &coin) const {
+ return db.Read(CoinEntry(&outpoint), coin);
}
-bool CCoinsViewDB::HaveCoins(const uint256 &txid) const {
- return db.Exists(std::make_pair(DB_COINS, txid));
+bool CCoinsViewDB::HaveCoin(const COutPoint &outpoint) const {
+ return db.Exists(CoinEntry(&outpoint));
}
uint256 CCoinsViewDB::GetBestBlock() const {
@@ -50,10 +74,11 @@ bool CCoinsViewDB::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) {
size_t changed = 0;
for (CCoinsMap::iterator it = mapCoins.begin(); it != mapCoins.end();) {
if (it->second.flags & CCoinsCacheEntry::DIRTY) {
- if (it->second.coins.IsPruned())
- batch.Erase(std::make_pair(DB_COINS, it->first));
+ CoinEntry entry(&it->first);
+ if (it->second.coin.IsSpent())
+ batch.Erase(entry);
else
- batch.Write(std::make_pair(DB_COINS, it->first), it->second.coins);
+ batch.Write(entry, it->second.coin);
changed++;
}
count++;
@@ -63,8 +88,14 @@ bool CCoinsViewDB::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) {
if (!hashBlock.IsNull())
batch.Write(DB_BEST_BLOCK, hashBlock);
- LogPrint(BCLog::COINDB, "Committing %u changed transactions (out of %u) to coin database...\n", (unsigned int)changed, (unsigned int)count);
- return db.WriteBatch(batch);
+ bool ret = db.WriteBatch(batch);
+ LogPrint(BCLog::COINDB, "Committed %u changed transaction outputs (out of %u) to coin database...\n", (unsigned int)changed, (unsigned int)count);
+ return ret;
+}
+
+size_t CCoinsViewDB::EstimateSize() const
+{
+ return db.EstimateSize(DB_COIN, (char)(DB_COIN+1));
}
CBlockTreeDB::CBlockTreeDB(size_t nCacheSize, bool fMemory, bool fWipe) : CDBWrapper(GetDataDir() / "blocks" / "index", nCacheSize, fMemory, fWipe) {
@@ -96,29 +127,31 @@ CCoinsViewCursor *CCoinsViewDB::Cursor() const
/* It seems that there are no "const iterators" for LevelDB. Since we
only need read operations on it, use a const-cast to get around
that restriction. */
- i->pcursor->Seek(DB_COINS);
+ i->pcursor->Seek(DB_COIN);
// Cache key of first record
if (i->pcursor->Valid()) {
- i->pcursor->GetKey(i->keyTmp);
+ CoinEntry entry(&i->keyTmp.second);
+ i->pcursor->GetKey(entry);
+ i->keyTmp.first = entry.key;
} else {
i->keyTmp.first = 0; // Make sure Valid() and GetKey() return false
}
return i;
}
-bool CCoinsViewDBCursor::GetKey(uint256 &key) const
+bool CCoinsViewDBCursor::GetKey(COutPoint &key) const
{
// Return cached key
- if (keyTmp.first == DB_COINS) {
+ if (keyTmp.first == DB_COIN) {
key = keyTmp.second;
return true;
}
return false;
}
-bool CCoinsViewDBCursor::GetValue(CCoins &coins) const
+bool CCoinsViewDBCursor::GetValue(Coin &coin) const
{
- return pcursor->GetValue(coins);
+ return pcursor->GetValue(coin);
}
unsigned int CCoinsViewDBCursor::GetValueSize() const
@@ -128,14 +161,18 @@ unsigned int CCoinsViewDBCursor::GetValueSize() const
bool CCoinsViewDBCursor::Valid() const
{
- return keyTmp.first == DB_COINS;
+ return keyTmp.first == DB_COIN;
}
void CCoinsViewDBCursor::Next()
{
pcursor->Next();
- if (!pcursor->Valid() || !pcursor->GetKey(keyTmp))
+ CoinEntry entry(&keyTmp.second);
+ if (!pcursor->Valid() || !pcursor->GetKey(entry)) {
keyTmp.first = 0; // Invalidate cached key after last record so that Valid() and GetKey() return false
+ } else {
+ keyTmp.first = entry.key;
+ }
}
bool CBlockTreeDB::WriteBatchSync(const std::vector<std::pair<int, const CBlockFileInfo*> >& fileInfo, int nLastFile, const std::vector<const CBlockIndex*>& blockinfo) {
@@ -215,3 +252,103 @@ bool CBlockTreeDB::LoadBlockIndexGuts(std::function<CBlockIndex*(const uint256&)
return true;
}
+
+namespace {
+
+//! Legacy class to deserialize pre-pertxout database entries without reindex.
+class CCoins
+{
+public:
+ //! whether transaction is a coinbase
+ bool fCoinBase;
+
+ //! unspent transaction outputs; spent outputs are .IsNull(); spent outputs at the end of the array are dropped
+ std::vector<CTxOut> vout;
+
+ //! at which height this transaction was included in the active block chain
+ int nHeight;
+
+ //! empty constructor
+ CCoins() : fCoinBase(false), vout(0), nHeight(0) { }
+
+ template<typename Stream>
+ void Unserialize(Stream &s) {
+ unsigned int nCode = 0;
+ // version
+ int nVersionDummy;
+ ::Unserialize(s, VARINT(nVersionDummy));
+ // header code
+ ::Unserialize(s, VARINT(nCode));
+ fCoinBase = nCode & 1;
+ std::vector<bool> vAvail(2, false);
+ vAvail[0] = (nCode & 2) != 0;
+ vAvail[1] = (nCode & 4) != 0;
+ unsigned int nMaskCode = (nCode / 8) + ((nCode & 6) != 0 ? 0 : 1);
+ // spentness bitmask
+ while (nMaskCode > 0) {
+ unsigned char chAvail = 0;
+ ::Unserialize(s, chAvail);
+ for (unsigned int p = 0; p < 8; p++) {
+ bool f = (chAvail & (1 << p)) != 0;
+ vAvail.push_back(f);
+ }
+ if (chAvail != 0)
+ nMaskCode--;
+ }
+ // txouts themself
+ vout.assign(vAvail.size(), CTxOut());
+ for (unsigned int i = 0; i < vAvail.size(); i++) {
+ if (vAvail[i])
+ ::Unserialize(s, REF(CTxOutCompressor(vout[i])));
+ }
+ // coinbase height
+ ::Unserialize(s, VARINT(nHeight));
+ }
+};
+
+}
+
+/** Upgrade the database from older formats.
+ *
+ * Currently implemented: from the per-tx utxo model (0.8..0.14.x) to per-txout.
+ */
+bool CCoinsViewDB::Upgrade() {
+ std::unique_ptr<CDBIterator> pcursor(db.NewIterator());
+ pcursor->Seek(std::make_pair(DB_COINS, uint256()));
+ if (!pcursor->Valid()) {
+ return true;
+ }
+
+ LogPrintf("Upgrading database...\n");
+ size_t batch_size = 1 << 24;
+ CDBBatch batch(db);
+ while (pcursor->Valid()) {
+ boost::this_thread::interruption_point();
+ std::pair<unsigned char, uint256> key;
+ if (pcursor->GetKey(key) && key.first == DB_COINS) {
+ CCoins old_coins;
+ if (!pcursor->GetValue(old_coins)) {
+ return error("%s: cannot parse CCoins record", __func__);
+ }
+ COutPoint outpoint(key.second, 0);
+ for (size_t i = 0; i < old_coins.vout.size(); ++i) {
+ if (!old_coins.vout[i].IsNull() && !old_coins.vout[i].scriptPubKey.IsUnspendable()) {
+ Coin newcoin(std::move(old_coins.vout[i]), old_coins.nHeight, old_coins.fCoinBase);
+ outpoint.n = i;
+ CoinEntry entry(&outpoint);
+ batch.Write(entry, newcoin);
+ }
+ }
+ batch.Erase(key);
+ if (batch.SizeEstimate() > batch_size) {
+ db.WriteBatch(batch);
+ batch.Clear();
+ }
+ pcursor->Next();
+ } else {
+ break;
+ }
+ }
+ db.WriteBatch(batch);
+ return true;
+}
diff --git a/src/txdb.h b/src/txdb.h
index 117e7201fb..974dd4ebe3 100644
--- a/src/txdb.h
+++ b/src/txdb.h
@@ -22,9 +22,7 @@ class uint256;
//! Compensate for extra memory peak (x1.5-x1.9) at flush time.
static constexpr int DB_PEAK_USAGE_FACTOR = 2;
//! No need to periodic flush if at least this much space still available.
-static constexpr int MAX_BLOCK_COINSDB_USAGE = 200 * DB_PEAK_USAGE_FACTOR;
-//! Always periodic flush if less than this much space still available.
-static constexpr int MIN_BLOCK_COINSDB_USAGE = 50 * DB_PEAK_USAGE_FACTOR;
+static constexpr int MAX_BLOCK_COINSDB_USAGE = 10 * DB_PEAK_USAGE_FACTOR;
//! -dbcache default (MiB)
static const int64_t nDefaultDbCache = 450;
//! max. -dbcache (MiB)
@@ -73,11 +71,15 @@ protected:
public:
CCoinsViewDB(size_t nCacheSize, bool fMemory = false, bool fWipe = false);
- bool GetCoins(const uint256 &txid, CCoins &coins) const;
- bool HaveCoins(const uint256 &txid) const;
- uint256 GetBestBlock() const;
- bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock);
- CCoinsViewCursor *Cursor() const;
+ bool GetCoin(const COutPoint &outpoint, Coin &coin) const override;
+ bool HaveCoin(const COutPoint &outpoint) const override;
+ uint256 GetBestBlock() const override;
+ bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) override;
+ CCoinsViewCursor *Cursor() const override;
+
+ //! Attempt to update from an older database format. Returns whether an error occurred.
+ bool Upgrade();
+ size_t EstimateSize() const override;
};
/** Specialization of CCoinsViewCursor to iterate over a CCoinsViewDB */
@@ -86,8 +88,8 @@ class CCoinsViewDBCursor: public CCoinsViewCursor
public:
~CCoinsViewDBCursor() {}
- bool GetKey(uint256 &key) const;
- bool GetValue(CCoins &coins) const;
+ bool GetKey(COutPoint &key) const;
+ bool GetValue(Coin &coin) const;
unsigned int GetValueSize() const;
bool Valid() const;
@@ -97,7 +99,7 @@ private:
CCoinsViewDBCursor(CDBIterator* pcursorIn, const uint256 &hashBlockIn):
CCoinsViewCursor(hashBlockIn), pcursor(pcursorIn) {}
std::unique_ptr<CDBIterator> pcursor;
- std::pair<char, uint256> keyTmp;
+ std::pair<char, COutPoint> keyTmp;
friend class CCoinsViewDB;
};
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index 852984426f..17389db9f0 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -343,17 +343,10 @@ CTxMemPool::CTxMemPool(CBlockPolicyEstimator* estimator) :
nCheckFrequency = 0;
}
-void CTxMemPool::pruneSpent(const uint256 &hashTx, CCoins &coins)
+bool CTxMemPool::isSpent(const COutPoint& outpoint)
{
LOCK(cs);
-
- auto it = mapNextTx.lower_bound(COutPoint(hashTx, 0));
-
- // iterate over all COutPoints in mapNextTx whose hash equals the provided hashTx
- while (it != mapNextTx.end() && it->first->hash == hashTx) {
- coins.Spend(it->first->n); // and remove those outputs from coins
- it++;
- }
+ return mapNextTx.count(outpoint);
}
unsigned int CTxMemPool::GetTransactionsUpdated() const
@@ -531,9 +524,9 @@ void CTxMemPool::removeForReorg(const CCoinsViewCache *pcoins, unsigned int nMem
indexed_transaction_set::const_iterator it2 = mapTx.find(txin.prevout.hash);
if (it2 != mapTx.end())
continue;
- const CCoins *coins = pcoins->AccessCoins(txin.prevout.hash);
- if (nCheckFrequency != 0) assert(coins);
- if (!coins || (coins->IsCoinBase() && ((signed long)nMemPoolHeight) - coins->nHeight < COINBASE_MATURITY)) {
+ const Coin &coin = pcoins->AccessCoin(txin.prevout);
+ if (nCheckFrequency != 0) assert(!coin.IsSpent());
+ if (coin.IsSpent() || (coin.IsCoinBase() && ((signed long)nMemPoolHeight) - coin.nHeight < COINBASE_MATURITY)) {
txToRemove.insert(it);
break;
}
@@ -661,8 +654,7 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const
parentSigOpCost += it2->GetSigOpCost();
}
} else {
- const CCoins* coins = pcoins->AccessCoins(txin.prevout.hash);
- assert(coins && coins->IsAvailable(txin.prevout.n));
+ assert(pcoins->HaveCoin(txin.prevout));
}
// Check whether its inputs are marked in mapNextTx.
auto it3 = mapNextTx.find(txin.prevout);
@@ -898,20 +890,24 @@ bool CTxMemPool::HasNoInputsOf(const CTransaction &tx) const
CCoinsViewMemPool::CCoinsViewMemPool(CCoinsView* baseIn, const CTxMemPool& mempoolIn) : CCoinsViewBacked(baseIn), mempool(mempoolIn) { }
-bool CCoinsViewMemPool::GetCoins(const uint256 &txid, CCoins &coins) const {
+bool CCoinsViewMemPool::GetCoin(const COutPoint &outpoint, Coin &coin) const {
// If an entry in the mempool exists, always return that one, as it's guaranteed to never
// conflict with the underlying cache, and it cannot have pruned entries (as it contains full)
// transactions. First checking the underlying cache risks returning a pruned entry instead.
- CTransactionRef ptx = mempool.get(txid);
+ CTransactionRef ptx = mempool.get(outpoint.hash);
if (ptx) {
- coins = CCoins(*ptx, MEMPOOL_HEIGHT);
- return true;
+ if (outpoint.n < ptx->vout.size()) {
+ coin = Coin(ptx->vout[outpoint.n], MEMPOOL_HEIGHT, false);
+ return true;
+ } else {
+ return false;
+ }
}
- return (base->GetCoins(txid, coins) && !coins.IsPruned());
+ return (base->GetCoin(outpoint, coin) && !coin.IsSpent());
}
-bool CCoinsViewMemPool::HaveCoins(const uint256 &txid) const {
- return mempool.exists(txid) || base->HaveCoins(txid);
+bool CCoinsViewMemPool::HaveCoin(const COutPoint &outpoint) const {
+ return mempool.exists(outpoint) || base->HaveCoin(outpoint);
}
size_t CTxMemPool::DynamicMemoryUsage() const {
@@ -1022,7 +1018,7 @@ void CTxMemPool::trackPackageRemoved(const CFeeRate& rate) {
}
}
-void CTxMemPool::TrimToSize(size_t sizelimit, std::vector<uint256>* pvNoSpendsRemaining) {
+void CTxMemPool::TrimToSize(size_t sizelimit, std::vector<COutPoint>* pvNoSpendsRemaining) {
LOCK(cs);
unsigned nTxnRemoved = 0;
@@ -1053,11 +1049,10 @@ void CTxMemPool::TrimToSize(size_t sizelimit, std::vector<uint256>* pvNoSpendsRe
if (pvNoSpendsRemaining) {
BOOST_FOREACH(const CTransaction& tx, txn) {
BOOST_FOREACH(const CTxIn& txin, tx.vin) {
- if (exists(txin.prevout.hash))
- continue;
- auto iter = mapNextTx.lower_bound(COutPoint(txin.prevout.hash, 0));
- if (iter == mapNextTx.end() || iter->first->hash != txin.prevout.hash)
- pvNoSpendsRemaining->push_back(txin.prevout.hash);
+ if (exists(txin.prevout.hash)) continue;
+ if (!mapNextTx.count(txin.prevout)) {
+ pvNoSpendsRemaining->push_back(txin.prevout);
+ }
}
}
}
@@ -1074,3 +1069,5 @@ bool CTxMemPool::TransactionWithinChainLimit(const uint256& txid, size_t chainLi
return it == mapTx.end() || (it->GetCountWithAncestors() < chainLimit &&
it->GetCountWithDescendants() < chainLimit);
}
+
+SaltedTxidHasher::SaltedTxidHasher() : k0(GetRand(std::numeric_limits<uint64_t>::max())), k1(GetRand(std::numeric_limits<uint64_t>::max())) {}
diff --git a/src/txmempool.h b/src/txmempool.h
index 671a8b596c..0316b42ba2 100644
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -31,8 +31,8 @@
class CAutoFile;
class CBlockIndex;
-/** Fake height value used in CCoins to signify they are only in the memory pool (since 0.8) */
-static const unsigned int MEMPOOL_HEIGHT = 0x7FFFFFFF;
+/** Fake height value used in Coin to signify they are only in the memory pool (since 0.8) */
+static const uint32_t MEMPOOL_HEIGHT = 0x7FFFFFFF;
struct LockPoints
{
@@ -327,6 +327,20 @@ enum class MemPoolRemovalReason {
REPLACED //! Removed for replacement
};
+class SaltedTxidHasher
+{
+private:
+ /** Salt */
+ const uint64_t k0, k1;
+
+public:
+ SaltedTxidHasher();
+
+ size_t operator()(const uint256& txid) const {
+ return SipHashUint256(k0, k1, txid);
+ }
+};
+
/**
* CTxMemPool stores valid-according-to-the-current-best-chain transactions
* that may be included in the next block.
@@ -515,7 +529,7 @@ public:
void _clear(); //lock free
bool CompareDepthAndScore(const uint256& hasha, const uint256& hashb);
void queryHashes(std::vector<uint256>& vtxid);
- void pruneSpent(const uint256& hash, CCoins &coins);
+ bool isSpent(const COutPoint& outpoint);
unsigned int GetTransactionsUpdated() const;
void AddTransactionsUpdated(unsigned int n);
/**
@@ -576,10 +590,10 @@ public:
CFeeRate GetMinFee(size_t sizelimit) const;
/** Remove transactions from the mempool until its dynamic size is <= sizelimit.
- * pvNoSpendsRemaining, if set, will be populated with the list of transactions
+ * pvNoSpendsRemaining, if set, will be populated with the list of outpoints
* which are not in mempool which no longer have any spends in this mempool.
*/
- void TrimToSize(size_t sizelimit, std::vector<uint256>* pvNoSpendsRemaining=NULL);
+ void TrimToSize(size_t sizelimit, std::vector<COutPoint>* pvNoSpendsRemaining=NULL);
/** Expire all transaction (and their dependencies) in the mempool older than time. Return the number of removed transactions. */
int Expire(int64_t time);
@@ -605,6 +619,13 @@ public:
return (mapTx.count(hash) != 0);
}
+ bool exists(const COutPoint& outpoint) const
+ {
+ LOCK(cs);
+ auto it = mapTx.find(outpoint.hash);
+ return (it != mapTx.end() && outpoint.n < it->GetTx().vout.size());
+ }
+
CTransactionRef get(const uint256& hash) const;
TxMempoolInfo info(const uint256& hash) const;
std::vector<TxMempoolInfo> infoAll() const;
@@ -664,8 +685,8 @@ protected:
public:
CCoinsViewMemPool(CCoinsView* baseIn, const CTxMemPool& mempoolIn);
- bool GetCoins(const uint256 &txid, CCoins &coins) const;
- bool HaveCoins(const uint256 &txid) const;
+ bool GetCoin(const COutPoint &outpoint, Coin &coin) const;
+ bool HaveCoin(const COutPoint &outpoint) const;
};
/**
diff --git a/src/undo.h b/src/undo.h
index a94e31f5cc..3749d5d7a8 100644
--- a/src/undo.h
+++ b/src/undo.h
@@ -7,58 +7,90 @@
#define BITCOIN_UNDO_H
#include "compressor.h"
+#include "consensus/consensus.h"
#include "primitives/transaction.h"
#include "serialize.h"
/** Undo information for a CTxIn
*
- * Contains the prevout's CTxOut being spent, and if this was the
- * last output of the affected transaction, its metadata as well
- * (coinbase or not, height, transaction version)
+ * Contains the prevout's CTxOut being spent, and its metadata as well
+ * (coinbase or not, height). The serialization contains a dummy value of
+ * zero. This is be compatible with older versions which expect to see
+ * the transaction version there.
*/
-class CTxInUndo
+class TxInUndoSerializer
{
-public:
- CTxOut txout; // the txout data before being spent
- bool fCoinBase; // if the outpoint was the last unspent: whether it belonged to a coinbase
- unsigned int nHeight; // if the outpoint was the last unspent: its height
- int nVersion; // if the outpoint was the last unspent: its version
-
- CTxInUndo() : txout(), fCoinBase(false), nHeight(0), nVersion(0) {}
- CTxInUndo(const CTxOut &txoutIn, bool fCoinBaseIn = false, unsigned int nHeightIn = 0, int nVersionIn = 0) : txout(txoutIn), fCoinBase(fCoinBaseIn), nHeight(nHeightIn), nVersion(nVersionIn) { }
+ const Coin* txout;
+public:
template<typename Stream>
void Serialize(Stream &s) const {
- ::Serialize(s, VARINT(nHeight*2+(fCoinBase ? 1 : 0)));
- if (nHeight > 0)
- ::Serialize(s, VARINT(this->nVersion));
- ::Serialize(s, CTxOutCompressor(REF(txout)));
+ ::Serialize(s, VARINT(txout->nHeight * 2 + (txout->fCoinBase ? 1 : 0)));
+ if (txout->nHeight > 0) {
+ // Required to maintain compatibility with older undo format.
+ ::Serialize(s, (unsigned char)0);
+ }
+ ::Serialize(s, CTxOutCompressor(REF(txout->out)));
}
+ TxInUndoSerializer(const Coin* coin) : txout(coin) {}
+};
+
+class TxInUndoDeserializer
+{
+ Coin* txout;
+
+public:
template<typename Stream>
void Unserialize(Stream &s) {
unsigned int nCode = 0;
::Unserialize(s, VARINT(nCode));
- nHeight = nCode / 2;
- fCoinBase = nCode & 1;
- if (nHeight > 0)
- ::Unserialize(s, VARINT(this->nVersion));
- ::Unserialize(s, REF(CTxOutCompressor(REF(txout))));
+ txout->nHeight = nCode / 2;
+ txout->fCoinBase = nCode & 1;
+ if (txout->nHeight > 0) {
+ // Old versions stored the version number for the last spend of
+ // a transaction's outputs. Non-final spends were indicated with
+ // height = 0.
+ int nVersionDummy;
+ ::Unserialize(s, VARINT(nVersionDummy));
+ }
+ ::Unserialize(s, REF(CTxOutCompressor(REF(txout->out))));
}
+
+ TxInUndoDeserializer(Coin* coin) : txout(coin) {}
};
+static const size_t MAX_INPUTS_PER_BLOCK = MAX_BLOCK_BASE_SIZE / ::GetSerializeSize(CTxIn(), SER_NETWORK, PROTOCOL_VERSION);
+
/** Undo information for a CTransaction */
class CTxUndo
{
public:
// undo information for all txins
- std::vector<CTxInUndo> vprevout;
+ std::vector<Coin> vprevout;
- ADD_SERIALIZE_METHODS;
+ template <typename Stream>
+ void Serialize(Stream& s) const {
+ // TODO: avoid reimplementing vector serializer
+ uint64_t count = vprevout.size();
+ ::Serialize(s, COMPACTSIZE(REF(count)));
+ for (const auto& prevout : vprevout) {
+ ::Serialize(s, REF(TxInUndoSerializer(&prevout)));
+ }
+ }
- template <typename Stream, typename Operation>
- inline void SerializationOp(Stream& s, Operation ser_action) {
- READWRITE(vprevout);
+ template <typename Stream>
+ void Unserialize(Stream& s) {
+ // TODO: avoid reimplementing vector deserializer
+ uint64_t count = 0;
+ ::Unserialize(s, COMPACTSIZE(count));
+ if (count > MAX_INPUTS_PER_BLOCK) {
+ throw std::ios_base::failure("Too many input undo records");
+ }
+ vprevout.resize(count);
+ for (auto& prevout : vprevout) {
+ ::Unserialize(s, REF(TxInUndoDeserializer(&prevout)));
+ }
}
};
diff --git a/src/validation.cpp b/src/validation.cpp
index 381d1b01c2..de65839eef 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -268,15 +268,15 @@ bool CheckSequenceLocks(const CTransaction &tx, int flags, LockPoints* lp, bool
prevheights.resize(tx.vin.size());
for (size_t txinIndex = 0; txinIndex < tx.vin.size(); txinIndex++) {
const CTxIn& txin = tx.vin[txinIndex];
- CCoins coins;
- if (!viewMemPool.GetCoins(txin.prevout.hash, coins)) {
+ Coin coin;
+ if (!viewMemPool.GetCoin(txin.prevout, coin)) {
return error("%s: Missing input", __func__);
}
- if (coins.nHeight == MEMPOOL_HEIGHT) {
+ if (coin.nHeight == MEMPOOL_HEIGHT) {
// Assume all mempool transaction confirm in the next block
prevheights[txinIndex] = tip->nHeight + 1;
} else {
- prevheights[txinIndex] = coins.nHeight;
+ prevheights[txinIndex] = coin.nHeight;
}
}
lockPair = CalculateSequenceLocks(tx, flags, &prevheights, index);
@@ -315,9 +315,9 @@ void LimitMempoolSize(CTxMemPool& pool, size_t limit, unsigned long age) {
LogPrint(BCLog::MEMPOOL, "Expired %i transactions from the memory pool\n", expired);
}
- std::vector<uint256> vNoSpendsRemaining;
+ std::vector<COutPoint> vNoSpendsRemaining;
pool.TrimToSize(limit, &vNoSpendsRemaining);
- BOOST_FOREACH(const uint256& removed, vNoSpendsRemaining)
+ BOOST_FOREACH(const COutPoint& removed, vNoSpendsRemaining)
pcoinsTip->Uncache(removed);
}
@@ -394,7 +394,7 @@ void UpdateMempoolForReorg(DisconnectedBlockTransactions &disconnectpool, bool f
bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const CTransactionRef& ptx, bool fLimitFree,
bool* pfMissingInputs, int64_t nAcceptTime, std::list<CTransactionRef>* plTxnReplaced,
- bool fOverrideMempoolLimit, const CAmount& nAbsurdFee, std::vector<uint256>& vHashTxnToUncache)
+ bool fOverrideMempoolLimit, const CAmount& nAbsurdFee, std::vector<COutPoint>& coins_to_uncache)
{
const CTransaction& tx = *ptx;
const uint256 hash = tx.GetHash();
@@ -487,30 +487,30 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
view.SetBackend(viewMemPool);
// do we already have it?
- bool fHadTxInCache = pcoinsTip->HaveCoinsInCache(hash);
- if (view.HaveCoins(hash)) {
- if (!fHadTxInCache)
- vHashTxnToUncache.push_back(hash);
- return state.Invalid(false, REJECT_ALREADY_KNOWN, "txn-already-known");
+ for (size_t out = 0; out < tx.vout.size(); out++) {
+ COutPoint outpoint(hash, out);
+ bool had_coin_in_cache = pcoinsTip->HaveCoinInCache(outpoint);
+ if (view.HaveCoin(outpoint)) {
+ if (!had_coin_in_cache) {
+ coins_to_uncache.push_back(outpoint);
+ }
+ return state.Invalid(false, REJECT_ALREADY_KNOWN, "txn-already-known");
+ }
}
// do all inputs exist?
- // Note that this does not check for the presence of actual outputs (see the next check for that),
- // and only helps with filling in pfMissingInputs (to determine missing vs spent).
BOOST_FOREACH(const CTxIn txin, tx.vin) {
- if (!pcoinsTip->HaveCoinsInCache(txin.prevout.hash))
- vHashTxnToUncache.push_back(txin.prevout.hash);
- if (!view.HaveCoins(txin.prevout.hash)) {
- if (pfMissingInputs)
+ if (!pcoinsTip->HaveCoinInCache(txin.prevout)) {
+ coins_to_uncache.push_back(txin.prevout);
+ }
+ if (!view.HaveCoin(txin.prevout)) {
+ if (pfMissingInputs) {
*pfMissingInputs = true;
+ }
return false; // fMissingInputs and !state.IsInvalid() is used to detect this condition, don't set state.Invalid()
}
}
- // are the actual inputs available?
- if (!view.HaveInputs(tx))
- return state.Invalid(false, REJECT_DUPLICATE, "bad-txns-inputs-spent");
-
// Bring the best block into scope
view.GetBestBlock();
@@ -548,8 +548,8 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
// during reorgs to ensure COINBASE_MATURITY is still met.
bool fSpendsCoinbase = false;
BOOST_FOREACH(const CTxIn &txin, tx.vin) {
- const CCoins *coins = view.AccessCoins(txin.prevout.hash);
- if (coins->IsCoinBase()) {
+ const Coin &coin = view.AccessCoin(txin.prevout);
+ if (coin.IsCoinBase()) {
fSpendsCoinbase = true;
break;
}
@@ -813,10 +813,10 @@ bool AcceptToMemoryPoolWithTime(CTxMemPool& pool, CValidationState &state, const
bool* pfMissingInputs, int64_t nAcceptTime, std::list<CTransactionRef>* plTxnReplaced,
bool fOverrideMempoolLimit, const CAmount nAbsurdFee)
{
- std::vector<uint256> vHashTxToUncache;
- bool res = AcceptToMemoryPoolWorker(pool, state, tx, fLimitFree, pfMissingInputs, nAcceptTime, plTxnReplaced, fOverrideMempoolLimit, nAbsurdFee, vHashTxToUncache);
+ std::vector<COutPoint> coins_to_uncache;
+ bool res = AcceptToMemoryPoolWorker(pool, state, tx, fLimitFree, pfMissingInputs, nAcceptTime, plTxnReplaced, fOverrideMempoolLimit, nAbsurdFee, coins_to_uncache);
if (!res) {
- BOOST_FOREACH(const uint256& hashTx, vHashTxToUncache)
+ BOOST_FOREACH(const COutPoint& hashTx, coins_to_uncache)
pcoinsTip->Uncache(hashTx);
}
// After we've (potentially) uncached entries, ensure our coins cache is still within its size limits
@@ -868,15 +868,8 @@ bool GetTransaction(const uint256 &hash, CTransactionRef &txOut, const Consensus
}
if (fAllowSlow) { // use coin database to locate block that contains transaction, and scan it
- int nHeight = -1;
- {
- const CCoinsViewCache& view = *pcoinsTip;
- const CCoins* coins = view.AccessCoins(hash);
- if (coins)
- nHeight = coins->nHeight;
- }
- if (nHeight > 0)
- pindexSlow = chainActive[nHeight];
+ const Coin& coin = AccessByTxid(*pcoinsTip, hash);
+ if (!coin.IsSpent()) pindexSlow = chainActive[coin.nHeight];
}
if (pindexSlow) {
@@ -1124,24 +1117,12 @@ void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, CTxUndo &txund
if (!tx.IsCoinBase()) {
txundo.vprevout.reserve(tx.vin.size());
BOOST_FOREACH(const CTxIn &txin, tx.vin) {
- CCoinsModifier coins = inputs.ModifyCoins(txin.prevout.hash);
- unsigned nPos = txin.prevout.n;
-
- if (nPos >= coins->vout.size() || coins->vout[nPos].IsNull())
- assert(false);
- // mark an outpoint spent, and construct undo information
- txundo.vprevout.push_back(CTxInUndo(coins->vout[nPos]));
- coins->Spend(nPos);
- if (coins->vout.size() == 0) {
- CTxInUndo& undo = txundo.vprevout.back();
- undo.nHeight = coins->nHeight;
- undo.fCoinBase = coins->fCoinBase;
- undo.nVersion = coins->nVersion;
- }
+ txundo.vprevout.emplace_back();
+ inputs.SpendCoin(txin.prevout, &txundo.vprevout.back());
}
}
// add outputs
- inputs.ModifyNewCoins(tx.GetHash(), tx.IsCoinBase())->FromTx(tx, nHeight);
+ AddCoins(inputs, tx, nHeight);
}
void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight)
@@ -1185,11 +1166,19 @@ bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsVi
if (fScriptChecks) {
for (unsigned int i = 0; i < tx.vin.size(); i++) {
const COutPoint &prevout = tx.vin[i].prevout;
- const CCoins* coins = inputs.AccessCoins(prevout.hash);
- assert(coins);
+ const Coin& coin = inputs.AccessCoin(prevout);
+ assert(!coin.IsSpent());
+
+ // We very carefully only pass in things to CScriptCheck which
+ // are clearly committed to by tx' witness hash. This provides
+ // a sanity check that our caching is not introducing consensus
+ // failures through additional data in, eg, the coins being
+ // spent being checked as a part of CScriptCheck.
+ const CScript& scriptPubKey = coin.out.scriptPubKey;
+ const CAmount amount = coin.out.nValue;
// Verify signature
- CScriptCheck check(*coins, tx, i, flags, cacheStore, &txdata);
+ CScriptCheck check(scriptPubKey, amount, tx, i, flags, cacheStore, &txdata);
if (pvChecks) {
pvChecks->push_back(CScriptCheck());
check.swap(pvChecks->back());
@@ -1201,7 +1190,7 @@ bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsVi
// arguments; if so, don't trigger DoS protection to
// avoid splitting the network between upgraded and
// non-upgraded nodes.
- CScriptCheck check2(*coins, tx, i,
+ CScriptCheck check2(scriptPubKey, amount, tx, i,
flags & ~STANDARD_NOT_MANDATORY_VERIFY_FLAGS, cacheStore, &txdata);
if (check2())
return state.Invalid(false, REJECT_NONSTANDARD, strprintf("non-mandatory-script-verify-flag (%s)", ScriptErrorString(check.GetScriptError())));
@@ -1260,8 +1249,10 @@ bool UndoReadFromDisk(CBlockUndo& blockundo, const CDiskBlockPos& pos, const uin
// Read block
uint256 hashChecksum;
+ CHashVerifier<CAutoFile> verifier(&filein); // We need a CHashVerifier as reserializing may lose data
try {
- filein >> blockundo;
+ verifier << hashBlock;
+ verifier >> blockundo;
filein >> hashChecksum;
}
catch (const std::exception& e) {
@@ -1269,10 +1260,7 @@ bool UndoReadFromDisk(CBlockUndo& blockundo, const CDiskBlockPos& pos, const uin
}
// Verify checksum
- CHashWriter hasher(SER_GETHASH, PROTOCOL_VERSION);
- hasher << hashBlock;
- hasher << blockundo;
- if (hashChecksum != hasher.GetHash())
+ if (hashChecksum != verifier.GetHash())
return error("%s: Checksum mismatch", __func__);
return true;
@@ -1298,46 +1286,43 @@ bool AbortNode(CValidationState& state, const std::string& strMessage, const std
} // anon namespace
+enum DisconnectResult
+{
+ DISCONNECT_OK, // All good.
+ DISCONNECT_UNCLEAN, // Rolled back, but UTXO set was inconsistent with block.
+ DISCONNECT_FAILED // Something else went wrong.
+};
+
/**
- * Apply the undo operation of a CTxInUndo to the given chain state.
- * @param undo The undo object.
+ * Restore the UTXO in a Coin at a given COutPoint
+ * @param undo The Coin to be restored.
* @param view The coins view to which to apply the changes.
* @param out The out point that corresponds to the tx input.
- * @return True on success.
+ * @return A DisconnectResult as an int
*/
-bool ApplyTxInUndo(const CTxInUndo& undo, CCoinsViewCache& view, const COutPoint& out)
+int ApplyTxInUndo(Coin&& undo, CCoinsViewCache& view, const COutPoint& out)
{
bool fClean = true;
- CCoinsModifier coins = view.ModifyCoins(out.hash);
- if (undo.nHeight != 0) {
- // undo data contains height: this is the last output of the prevout tx being spent
- if (!coins->IsPruned())
- fClean = fClean && error("%s: undo data overwriting existing transaction", __func__);
- coins->Clear();
- coins->fCoinBase = undo.fCoinBase;
- coins->nHeight = undo.nHeight;
- coins->nVersion = undo.nVersion;
- } else {
- if (coins->IsPruned())
- fClean = fClean && error("%s: undo data adding output to missing transaction", __func__);
+ if (view.HaveCoin(out)) fClean = false; // overwriting transaction output
+
+ if (undo.nHeight == 0) {
+ // Missing undo metadata (height and coinbase). Older versions included this
+ // information only in undo records for the last spend of a transactions'
+ // outputs. This implies that it must be present for some other output of the same tx.
+ const Coin& alternate = AccessByTxid(view, out.hash);
+ if (!alternate.IsSpent()) {
+ undo.nHeight = alternate.nHeight;
+ undo.fCoinBase = alternate.fCoinBase;
+ } else {
+ return DISCONNECT_FAILED; // adding output for transaction without known metadata
+ }
}
- if (coins->IsAvailable(out.n))
- fClean = fClean && error("%s: undo data overwriting existing output", __func__);
- if (coins->vout.size() < out.n+1)
- coins->vout.resize(out.n+1);
- coins->vout[out.n] = undo.txout;
+ view.AddCoin(out, std::move(undo), undo.fCoinBase);
- return fClean;
+ return fClean ? DISCONNECT_OK : DISCONNECT_UNCLEAN;
}
-enum DisconnectResult
-{
- DISCONNECT_OK, // All good.
- DISCONNECT_UNCLEAN, // Rolled back, but UTXO set was inconsistent with block.
- DISCONNECT_FAILED // Something else went wrong.
-};
-
/** Undo the effects of this block (with given index) on the UTXO set represented by coins.
* When UNCLEAN or FAILED is returned, view is left in an indeterminate state. */
static DisconnectResult DisconnectBlock(const CBlock& block, const CBlockIndex* pindex, CCoinsViewCache& view)
@@ -1369,36 +1354,31 @@ static DisconnectResult DisconnectBlock(const CBlock& block, const CBlockIndex*
// Check that all outputs are available and match the outputs in the block itself
// exactly.
- {
- CCoinsModifier outs = view.ModifyCoins(hash);
- outs->ClearUnspendable();
-
- CCoins outsBlock(tx, pindex->nHeight);
- // The CCoins serialization does not serialize negative numbers.
- // No network rules currently depend on the version here, so an inconsistency is harmless
- // but it must be corrected before txout nversion ever influences a network rule.
- if (outsBlock.nVersion < 0)
- outs->nVersion = outsBlock.nVersion;
- if (*outs != outsBlock)
- fClean = fClean && error("DisconnectBlock(): added transaction mismatch? database corrupted");
-
- // remove outputs
- outs->Clear();
+ for (size_t o = 0; o < tx.vout.size(); o++) {
+ if (!tx.vout[o].scriptPubKey.IsUnspendable()) {
+ COutPoint out(hash, o);
+ Coin coin;
+ view.SpendCoin(out, &coin);
+ if (tx.vout[o] != coin.out) {
+ fClean = false; // transaction output mismatch
+ }
+ }
}
// restore inputs
if (i > 0) { // not coinbases
- const CTxUndo &txundo = blockUndo.vtxundo[i-1];
+ CTxUndo &txundo = blockUndo.vtxundo[i-1];
if (txundo.vprevout.size() != tx.vin.size()) {
error("DisconnectBlock(): transaction and undo data inconsistent");
return DISCONNECT_FAILED;
}
for (unsigned int j = tx.vin.size(); j-- > 0;) {
const COutPoint &out = tx.vin[j].prevout;
- const CTxInUndo &undo = txundo.vprevout[j];
- if (!ApplyTxInUndo(undo, view, out))
- fClean = false;
+ int res = ApplyTxInUndo(std::move(txundo.vprevout[j]), view, out);
+ if (res == DISCONNECT_FAILED) return DISCONNECT_FAILED;
+ fClean = fClean && res != DISCONNECT_UNCLEAN;
}
+ // At this point, all of txundo.vprevout should have been moved out.
}
}
@@ -1579,10 +1559,12 @@ static bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockInd
if (fEnforceBIP30) {
for (const auto& tx : block.vtx) {
- const CCoins* coins = view.AccessCoins(tx->GetHash());
- if (coins && !coins->IsPruned())
- return state.DoS(100, error("ConnectBlock(): tried to overwrite transaction"),
- REJECT_INVALID, "bad-txns-BIP30");
+ for (size_t o = 0; o < tx->vout.size(); o++) {
+ if (view.HaveCoin(COutPoint(tx->GetHash(), o))) {
+ return state.DoS(100, error("ConnectBlock(): tried to overwrite transaction"),
+ REJECT_INVALID, "bad-txns-BIP30");
+ }
+ }
}
}
@@ -1649,7 +1631,7 @@ static bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockInd
// be in ConnectBlock because they require the UTXO set
prevheights.resize(tx.vin.size());
for (size_t j = 0; j < tx.vin.size(); j++) {
- prevheights[j] = view.AccessCoins(tx.vin[j].prevout.hash)->nHeight;
+ prevheights[j] = view.AccessCoin(tx.vin[j].prevout).nHeight;
}
if (!SequenceLocks(tx, nLockTimeFlags, &prevheights, *pindex)) {
@@ -1787,9 +1769,8 @@ bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode, int n
int64_t nMempoolSizeMax = GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
int64_t cacheSize = pcoinsTip->DynamicMemoryUsage() * DB_PEAK_USAGE_FACTOR;
int64_t nTotalSpace = nCoinCacheUsage + std::max<int64_t>(nMempoolSizeMax - nMempoolUsage, 0);
- // The cache is large and we're within 10% and 200 MiB or 50% and 50MiB of the limit, but we have time now (not in the middle of a block processing).
- bool fCacheLarge = mode == FLUSH_STATE_PERIODIC && cacheSize > std::min(std::max(nTotalSpace / 2, nTotalSpace - MIN_BLOCK_COINSDB_USAGE * 1024 * 1024),
- std::max((9 * nTotalSpace) / 10, nTotalSpace - MAX_BLOCK_COINSDB_USAGE * 1024 * 1024));
+ // The cache is large and we're within 10% and 10 MiB of the limit, but we have time now (not in the middle of a block processing).
+ bool fCacheLarge = mode == FLUSH_STATE_PERIODIC && cacheSize > std::max((9 * nTotalSpace) / 10, nTotalSpace - MAX_BLOCK_COINSDB_USAGE * 1024 * 1024);
// The cache is over the limit, we have to write now.
bool fCacheCritical = mode == FLUSH_STATE_IF_NEEDED && cacheSize > nTotalSpace;
// It's been a while since we wrote the block index to disk. Do this frequently, so we don't need to redownload after a crash.
@@ -1830,12 +1811,12 @@ bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode, int n
}
// Flush best chain related state. This can only be done if the blocks / block index write was also done.
if (fDoFullFlush) {
- // Typical CCoins structures on disk are around 128 bytes in size.
+ // Typical Coin structures on disk are around 48 bytes in size.
// Pushing a new one to the database can cause it to be written
// twice (once in the log, and once in the tables). This is already
// an overestimation, as most will delete an existing entry or
// overwrite one. Still, use a conservative safety factor of 2.
- if (!CheckDiskSpace(128 * 2 * 2 * pcoinsTip->GetCacheSize()))
+ if (!CheckDiskSpace(48 * 2 * 2 * pcoinsTip->GetCacheSize()))
return state.Error("out of disk space");
// Flush the chainstate (which may refer to block index entries).
if (!pcoinsTip->Flush())
@@ -1917,7 +1898,7 @@ void static UpdateTip(CBlockIndex *pindexNew, const CChainParams& chainParams) {
DoWarning(strWarning);
}
}
- LogPrintf("%s: new best=%s height=%d version=0x%08x log2_work=%.8g tx=%lu date='%s' progress=%f cache=%.1fMiB(%utx)", __func__,
+ LogPrintf("%s: new best=%s height=%d version=0x%08x log2_work=%.8g tx=%lu date='%s' progress=%f cache=%.1fMiB(%utxo)", __func__,
chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(), chainActive.Tip()->nVersion,
log(chainActive.Tip()->nChainWork.getdouble())/log(2.0), (unsigned long)chainActive.Tip()->nChainTx,
DateTimeStrFormat("%Y-%m-%d %H:%M:%S", chainActive.Tip()->GetBlockTime()),
diff --git a/src/validation.h b/src/validation.h
index 02a9b5a369..096fd0a9ee 100644
--- a/src/validation.h
+++ b/src/validation.h
@@ -406,8 +406,8 @@ private:
public:
CScriptCheck(): amount(0), ptxTo(0), nIn(0), nFlags(0), cacheStore(false), error(SCRIPT_ERR_UNKNOWN_ERROR) {}
- CScriptCheck(const CCoins& txFromIn, const CTransaction& txToIn, unsigned int nInIn, unsigned int nFlagsIn, bool cacheIn, PrecomputedTransactionData* txdataIn) :
- scriptPubKey(txFromIn.vout[txToIn.vin[nInIn].prevout.n].scriptPubKey), amount(txFromIn.vout[txToIn.vin[nInIn].prevout.n].nValue),
+ CScriptCheck(const CScript& scriptPubKeyIn, const CAmount amountIn, const CTransaction& txToIn, unsigned int nInIn, unsigned int nFlagsIn, bool cacheIn, PrecomputedTransactionData* txdataIn) :
+ scriptPubKey(scriptPubKeyIn), amount(amountIn),
ptxTo(&txToIn), nIn(nInIn), nFlags(nFlagsIn), cacheStore(cacheIn), error(SCRIPT_ERR_UNKNOWN_ERROR), txdata(txdataIn) { }
bool operator()();
diff --git a/test/functional/blockchain.py b/test/functional/blockchain.py
index b6112c7280..4bfd3ee677 100755
--- a/test/functional/blockchain.py
+++ b/test/functional/blockchain.py
@@ -49,10 +49,12 @@ class BlockchainTest(BitcoinTestFramework):
assert_equal(res['transactions'], 200)
assert_equal(res['height'], 200)
assert_equal(res['txouts'], 200)
- assert_equal(res['bytes_serialized'], 13924),
assert_equal(res['bestblock'], node.getblockhash(200))
+ size = res['disk_size']
+ assert size > 6400
+ assert size < 64000
assert_equal(len(res['bestblock']), 64)
- assert_equal(len(res['hash_serialized']), 64)
+ assert_equal(len(res['hash_serialized_2']), 64)
self.log.info("Test that gettxoutsetinfo() works for blockchain with just the genesis block")
b1hash = node.getblockhash(1)
@@ -64,7 +66,7 @@ class BlockchainTest(BitcoinTestFramework):
assert_equal(res2['height'], 0)
assert_equal(res2['txouts'], 0)
assert_equal(res2['bestblock'], node.getblockhash(0))
- assert_equal(len(res2['hash_serialized']), 64)
+ assert_equal(len(res2['hash_serialized_2']), 64)
self.log.info("Test that gettxoutsetinfo() returns the same result after invalidate/reconsider block")
node.reconsiderblock(b1hash)
@@ -75,7 +77,7 @@ class BlockchainTest(BitcoinTestFramework):
assert_equal(res['height'], res3['height'])
assert_equal(res['txouts'], res3['txouts'])
assert_equal(res['bestblock'], res3['bestblock'])
- assert_equal(res['hash_serialized'], res3['hash_serialized'])
+ assert_equal(res['hash_serialized_2'], res3['hash_serialized_2'])
def _test_getblockheader(self):
node = self.nodes[0]
generated by cgit v1.2.3 (git 2.26.2) at 2024-07-08 08:43:54 +0000