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-rw-r--r--src/validation.cpp53
1 files changed, 29 insertions, 24 deletions
diff --git a/src/validation.cpp b/src/validation.cpp
index cf58504eb..51e40c17b 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -547,8 +547,10 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
const CTransaction& tx = *ptx;
const uint256 hash = tx.GetHash();
AssertLockHeld(cs_main);
- if (pfMissingInputs)
+ LOCK(pool.cs); // mempool "read lock" (held through GetMainSignals().TransactionAddedToMempool())
+ if (pfMissingInputs) {
*pfMissingInputs = false;
+ }
if (!CheckTransaction(tx, state))
return false; // state filled in by CheckTransaction
@@ -581,8 +583,6 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
// Check for conflicts with in-memory transactions
std::set<uint256> setConflicts;
- {
- LOCK(pool.cs); // protect pool.mapNextTx
for (const CTxIn &txin : tx.vin)
{
auto itConflicting = pool.mapNextTx.find(txin.prevout);
@@ -623,15 +623,12 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
}
}
}
- }
{
CCoinsView dummy;
CCoinsViewCache view(&dummy);
LockPoints lp;
- {
- LOCK(pool.cs);
CCoinsViewMemPool viewMemPool(pcoinsTip.get(), pool);
view.SetBackend(viewMemPool);
@@ -670,8 +667,6 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
if (!CheckSequenceLocks(tx, STANDARD_LOCKTIME_VERIFY_FLAGS, &lp))
return state.DoS(0, false, REJECT_NONSTANDARD, "non-BIP68-final");
- } // end LOCK(pool.cs)
-
CAmount nFees = 0;
if (!Consensus::CheckTxInputs(tx, state, view, GetSpendHeight(view), nFees)) {
return error("%s: Consensus::CheckTxInputs: %s, %s", __func__, tx.GetHash().ToString(), FormatStateMessage(state));
@@ -717,7 +712,7 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
CAmount mempoolRejectFee = pool.GetMinFee(gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFee(nSize);
if (!bypass_limits && mempoolRejectFee > 0 && nModifiedFees < mempoolRejectFee) {
- return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "mempool min fee not met", false, strprintf("%d < %d", nFees, mempoolRejectFee));
+ return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "mempool min fee not met", false, strprintf("%d < %d", nModifiedFees, mempoolRejectFee));
}
// No transactions are allowed below minRelayTxFee except from disconnected blocks
@@ -768,7 +763,6 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
// If we don't hold the lock allConflicting might be incomplete; the
// subsequent RemoveStaged() and addUnchecked() calls don't guarantee
// mempool consistency for us.
- LOCK(pool.cs);
const bool fReplacementTransaction = setConflicts.size();
if (fReplacementTransaction)
{
@@ -1121,7 +1115,13 @@ bool ReadBlockFromDisk(CBlock& block, const CDiskBlockPos& pos, const Consensus:
bool ReadBlockFromDisk(CBlock& block, const CBlockIndex* pindex, const Consensus::Params& consensusParams)
{
- if (!ReadBlockFromDisk(block, pindex->GetBlockPos(), consensusParams))
+ CDiskBlockPos blockPos;
+ {
+ LOCK(cs_main);
+ blockPos = pindex->GetBlockPos();
+ }
+
+ if (!ReadBlockFromDisk(block, blockPos, consensusParams))
return false;
if (block.GetHash() != pindex->GetBlockHash())
return error("ReadBlockFromDisk(CBlock&, CBlockIndex*): GetHash() doesn't match index for %s at %s",
@@ -1182,7 +1182,8 @@ static void AlertNotify(const std::string& strMessage)
safeStatus = singleQuote+safeStatus+singleQuote;
boost::replace_all(strCmd, "%s", safeStatus);
- boost::thread t(runCommand, strCmd); // thread runs free
+ std::thread t(runCommand, strCmd);
+ t.detach(); // thread runs free
}
static void CheckForkWarningConditions()
@@ -1683,9 +1684,9 @@ int32_t ComputeBlockVersion(const CBlockIndex* pindexPrev, const Consensus::Para
int32_t nVersion = VERSIONBITS_TOP_BITS;
for (int i = 0; i < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; i++) {
- ThresholdState state = VersionBitsState(pindexPrev, params, (Consensus::DeploymentPos)i, versionbitscache);
+ ThresholdState state = VersionBitsState(pindexPrev, params, static_cast<Consensus::DeploymentPos>(i), versionbitscache);
if (state == THRESHOLD_LOCKED_IN || state == THRESHOLD_STARTED) {
- nVersion |= VersionBitsMask(params, (Consensus::DeploymentPos)i);
+ nVersion |= VersionBitsMask(params, static_cast<Consensus::DeploymentPos>(i));
}
}
@@ -1772,9 +1773,7 @@ bool CChainState::ConnectBlock(const CBlock& block, CValidationState& state, CBl
{
AssertLockHeld(cs_main);
assert(pindex);
- // pindex->phashBlock can be null if called by CreateNewBlock/TestBlockValidity
- assert((pindex->phashBlock == nullptr) ||
- (*pindex->phashBlock == block.GetHash()));
+ assert(*pindex->phashBlock == block.GetHash());
int64_t nTimeStart = GetTimeMicros();
// Check it again in case a previous version let a bad block in
@@ -1848,8 +1847,7 @@ bool CChainState::ConnectBlock(const CBlock& block, CValidationState& state, CBl
// Now that the whole chain is irreversibly beyond that time it is applied to all blocks except the
// two in the chain that violate it. This prevents exploiting the issue against nodes during their
// initial block download.
- bool fEnforceBIP30 = (!pindex->phashBlock) || // Enforce on CreateNewBlock invocations which don't have a hash.
- !((pindex->nHeight==91842 && pindex->GetBlockHash() == uint256S("0x00000000000a4d0a398161ffc163c503763b1f4360639393e0e4c8e300e0caec")) ||
+ bool fEnforceBIP30 = !((pindex->nHeight==91842 && pindex->GetBlockHash() == uint256S("0x00000000000a4d0a398161ffc163c503763b1f4360639393e0e4c8e300e0caec")) ||
(pindex->nHeight==91880 && pindex->GetBlockHash() == uint256S("0x00000000000743f190a18c5577a3c2d2a1f610ae9601ac046a38084ccb7cd721")));
// Once BIP34 activated it was not possible to create new duplicate coinbases and thus other than starting
@@ -2139,7 +2137,7 @@ bool static FlushStateToDisk(const CChainParams& chainparams, CValidationState &
nLastWrite = nNow;
}
// Flush best chain related state. This can only be done if the blocks / block index write was also done.
- if (fDoFullFlush) {
+ if (fDoFullFlush && !pcoinsTip->GetBestBlock().IsNull()) {
// 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
@@ -2624,13 +2622,10 @@ bool CChainState::ActivateBestChain(CValidationState &state, const CChainParams&
if (GetMainSignals().CallbacksPending() > 10) {
// Block until the validation queue drains. This should largely
// never happen in normal operation, however may happen during
- // reindex, causing memory blowup if we run too far ahead.
+ // reindex, causing memory blowup if we run too far ahead.
SyncWithValidationInterfaceQueue();
}
- if (ShutdownRequested())
- break;
-
const CBlockIndex *pindexFork;
bool fInitialDownload;
{
@@ -2677,6 +2672,13 @@ bool CChainState::ActivateBestChain(CValidationState &state, const CChainParams&
}
if (nStopAtHeight && pindexNewTip && pindexNewTip->nHeight >= nStopAtHeight) StartShutdown();
+
+ // We check shutdown only after giving ActivateBestChainStep a chance to run once so that we
+ // never shutdown before connecting the genesis block during LoadChainTip(). Previously this
+ // caused an assert() failure during shutdown in such cases as the UTXO DB flushing checks
+ // that the best block hash is non-null.
+ if (ShutdownRequested())
+ break;
} while (pindexNewTip != pindexMostWork);
CheckBlockIndex(chainparams.GetConsensus());
@@ -3482,9 +3484,11 @@ bool TestBlockValidity(CValidationState& state, const CChainParams& chainparams,
AssertLockHeld(cs_main);
assert(pindexPrev && pindexPrev == chainActive.Tip());
CCoinsViewCache viewNew(pcoinsTip.get());
+ uint256 block_hash(block.GetHash());
CBlockIndex indexDummy(block);
indexDummy.pprev = pindexPrev;
indexDummy.nHeight = pindexPrev->nHeight + 1;
+ indexDummy.phashBlock = &block_hash;
// NOTE: CheckBlockHeader is called by CheckBlock
if (!ContextualCheckBlockHeader(block, state, chainparams, pindexPrev, GetAdjustedTime()))
@@ -4706,6 +4710,7 @@ bool DumpMempool(void)
}
//! Guess how far we are in the verification process at the given block index
+//! require cs_main if pindex has not been validated yet (because nChainTx might be unset)
double GuessVerificationProgress(const ChainTxData& data, const CBlockIndex *pindex) {
if (pindex == nullptr)
return 0.0;