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Merge #16443: refactor: have CCoins* data managed under CChainState

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582d2cd747 Cover UTXO set access with lock annotations (James O'Beirne)
5693530685 refactor: have CCoins* data managed under CChainState (James O'Beirne)
fae6ab6aed refactor: pcoinsTip -> CChainState::CoinsTip() (James O'Beirne)

Pull request description:

  This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):

  Parent PR: #15606
  Issue: #15605
  Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal

  ---

  This change encapsulates UTXO set data within CChainState instances, removing global data `pcoinsTip` and `pcoinsviewdb`. This is necessary if we want to maintain multiple chainstates with their own rendering of the UTXO set.

  We introduce a class CoinsViews which consolidates the construction of a CCoins* hierarchy.

  This commit could be broken into smaller pieces, but it would require more ephemeral diffs to, e.g., temporarily change CCoinsViewDB's constructor invocations.

ACKs for top commit:
  Sjors:
    reACK 582d2cd747
  MarcoFalke:
    ACK 582d2cd747

Tree-SHA512: ec9d904fe5dca8cd2dc4b7916daa5d8bab30856dd4645987300f905e0a19f9919fce4f9d1ff03eda982943ca73e6e9a746be6cf53b46510de36e8c81a1eafba1
This commit is contained in:
MarcoFalke
2019-08-15 12:47:04 -04:00
parent 8bd5e0af99 582d2cd747
commit 85883a9f8e
17 changed files with 247 additions and 100 deletions
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6
src/test/miner_tests.cpp
View File

@@ -372,7 +372,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
CBlockIndex* prev = ::ChainActive().Tip();
CBlockIndex* next = new CBlockIndex();
next->phashBlock = new uint256(InsecureRand256());
pcoinsTip->SetBestBlock(next->GetBlockHash());
::ChainstateActive().CoinsTip().SetBestBlock(next->GetBlockHash());
next->pprev = prev;
next->nHeight = prev->nHeight + 1;
next->BuildSkip();
@@ -384,7 +384,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
CBlockIndex* prev = ::ChainActive().Tip();
CBlockIndex* next = new CBlockIndex();
next->phashBlock = new uint256(InsecureRand256());
pcoinsTip->SetBestBlock(next->GetBlockHash());
::ChainstateActive().CoinsTip().SetBestBlock(next->GetBlockHash());
next->pprev = prev;
next->nHeight = prev->nHeight + 1;
next->BuildSkip();
@@ -414,7 +414,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
while (::ChainActive().Tip()->nHeight > nHeight) {
CBlockIndex* del = ::ChainActive().Tip();
::ChainActive().SetTip(del->pprev);
pcoinsTip->SetBestBlock(del->pprev->GetBlockHash());
::ChainstateActive().CoinsTip().SetBestBlock(del->pprev->GetBlockHash());
delete del->phashBlock;
delete del;
}

11
src/test/setup_common.cpp
View File

@@ -85,8 +85,12 @@ TestingSetup::TestingSetup(const std::string& chainName) : BasicTestingSetup(cha
mempool.setSanityCheck(1.0);
pblocktree.reset(new CBlockTreeDB(1 << 20, true));
pcoinsdbview.reset(new CCoinsViewDB(1 << 23, true));
pcoinsTip.reset(new CCoinsViewCache(pcoinsdbview.get()));
g_chainstate = MakeUnique<CChainState>();
::ChainstateActive().InitCoinsDB(
/* cache_size_bytes */ 1 << 23, /* in_memory */ true, /* should_wipe */ false);
assert(!::ChainstateActive().CanFlushToDisk());
::ChainstateActive().InitCoinsCache();
assert(::ChainstateActive().CanFlushToDisk());
if (!LoadGenesisBlock(chainparams)) {
throw std::runtime_error("LoadGenesisBlock failed.");
}
@@ -113,8 +117,7 @@ TestingSetup::~TestingSetup()
g_connman.reset();
g_banman.reset();
UnloadBlockIndex();
pcoinsTip.reset();
pcoinsdbview.reset();
g_chainstate.reset();
pblocktree.reset();
}

22
src/test/txvalidationcache_tests.cpp
View File

@@ -97,7 +97,7 @@ BOOST_FIXTURE_TEST_CASE(tx_mempool_block_doublespend, TestChain100Setup)
BOOST_CHECK_EQUAL(mempool.size(), 0U);
}
// Run CheckInputs (using pcoinsTip) on the given transaction, for all script
// Run CheckInputs (using CoinsTip()) on the given transaction, for all script
// flags. Test that CheckInputs passes for all flags that don't overlap with
// the failing_flags argument, but otherwise fails.
// CHECKLOCKTIMEVERIFY and CHECKSEQUENCEVERIFY (and future NOP codes that may
@@ -125,7 +125,7 @@ static void ValidateCheckInputsForAllFlags(const CTransaction &tx, uint32_t fail
// WITNESS requires P2SH
test_flags |= SCRIPT_VERIFY_P2SH;
}
bool ret = CheckInputs(tx, state, pcoinsTip.get(), true, test_flags, true, add_to_cache, txdata, nullptr);
bool ret = CheckInputs(tx, state, &::ChainstateActive().CoinsTip(), true, test_flags, true, add_to_cache, txdata, nullptr);
// CheckInputs should succeed iff test_flags doesn't intersect with
// failing_flags
bool expected_return_value = !(test_flags & failing_flags);
@@ -135,13 +135,13 @@ static void ValidateCheckInputsForAllFlags(const CTransaction &tx, uint32_t fail
if (ret && add_to_cache) {
// Check that we get a cache hit if the tx was valid
std::vector<CScriptCheck> scriptchecks;
BOOST_CHECK(CheckInputs(tx, state, pcoinsTip.get(), true, test_flags, true, add_to_cache, txdata, &scriptchecks));
BOOST_CHECK(CheckInputs(tx, state, &::ChainstateActive().CoinsTip(), true, test_flags, true, add_to_cache, txdata, &scriptchecks));
BOOST_CHECK(scriptchecks.empty());
} else {
// Check that we get script executions to check, if the transaction
// was invalid, or we didn't add to cache.
std::vector<CScriptCheck> scriptchecks;
BOOST_CHECK(CheckInputs(tx, state, pcoinsTip.get(), true, test_flags, true, add_to_cache, txdata, &scriptchecks));
BOOST_CHECK(CheckInputs(tx, state, &::ChainstateActive().CoinsTip(), true, test_flags, true, add_to_cache, txdata, &scriptchecks));
BOOST_CHECK_EQUAL(scriptchecks.size(), tx.vin.size());
}
}
@@ -204,13 +204,13 @@ BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup)
CValidationState state;
PrecomputedTransactionData ptd_spend_tx(spend_tx);
BOOST_CHECK(!CheckInputs(CTransaction(spend_tx), state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, nullptr));
BOOST_CHECK(!CheckInputs(CTransaction(spend_tx), state, &::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, nullptr));
// If we call again asking for scriptchecks (as happens in
// ConnectBlock), we should add a script check object for this -- we're
// not caching invalidity (if that changes, delete this test case).
std::vector<CScriptCheck> scriptchecks;
BOOST_CHECK(CheckInputs(CTransaction(spend_tx), state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, &scriptchecks));
BOOST_CHECK(CheckInputs(CTransaction(spend_tx), state, &::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, &scriptchecks));
BOOST_CHECK_EQUAL(scriptchecks.size(), 1U);
// Test that CheckInputs returns true iff DERSIG-enforcing flags are
@@ -227,7 +227,7 @@ BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup)
block = CreateAndProcessBlock({spend_tx}, p2pk_scriptPubKey);
LOCK(cs_main);
BOOST_CHECK(::ChainActive().Tip()->GetBlockHash() == block.GetHash());
BOOST_CHECK(pcoinsTip->GetBestBlock() == block.GetHash());
BOOST_CHECK(::ChainstateActive().CoinsTip().GetBestBlock() == block.GetHash());
// Test P2SH: construct a transaction that is valid without P2SH, and
// then test validity with P2SH.
@@ -272,7 +272,7 @@ BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup)
invalid_with_cltv_tx.vin[0].scriptSig = CScript() << vchSig << 100;
CValidationState state;
PrecomputedTransactionData txdata(invalid_with_cltv_tx);
BOOST_CHECK(CheckInputs(CTransaction(invalid_with_cltv_tx), state, pcoinsTip.get(), true, SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY, true, true, txdata, nullptr));
BOOST_CHECK(CheckInputs(CTransaction(invalid_with_cltv_tx), state, ::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY, true, true, txdata, nullptr));
}
// TEST CHECKSEQUENCEVERIFY
@@ -300,7 +300,7 @@ BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup)
invalid_with_csv_tx.vin[0].scriptSig = CScript() << vchSig << 100;
CValidationState state;
PrecomputedTransactionData txdata(invalid_with_csv_tx);
BOOST_CHECK(CheckInputs(CTransaction(invalid_with_csv_tx), state, pcoinsTip.get(), true, SCRIPT_VERIFY_CHECKSEQUENCEVERIFY, true, true, txdata, nullptr));
BOOST_CHECK(CheckInputs(CTransaction(invalid_with_csv_tx), state, &::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_CHECKSEQUENCEVERIFY, true, true, txdata, nullptr));
}
// TODO: add tests for remaining script flags
@@ -362,12 +362,12 @@ BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup)
CValidationState state;
PrecomputedTransactionData txdata(tx);
// This transaction is now invalid under segwit, because of the second input.
BOOST_CHECK(!CheckInputs(CTransaction(tx), state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, nullptr));
BOOST_CHECK(!CheckInputs(CTransaction(tx), state, &::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, nullptr));
std::vector<CScriptCheck> scriptchecks;
// Make sure this transaction was not cached (ie because the first
// input was valid)
BOOST_CHECK(CheckInputs(CTransaction(tx), state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, &scriptchecks));
BOOST_CHECK(CheckInputs(CTransaction(tx), state, &::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, &scriptchecks));
// Should get 2 script checks back -- caching is on a whole-transaction basis.
BOOST_CHECK_EQUAL(scriptchecks.size(), 2U);
}