#include <validation.h>
#include <kernel/chain.h>
#include <kernel/coinstats.h>
#include <kernel/mempool_persist.h>
#include <arith_uint256.h>
#include <chain.h>
#include <checkqueue.h>
#include <clientversion.h>
#include <consensus/amount.h>
#include <consensus/consensus.h>
#include <consensus/merkle.h>
#include <consensus/tx_check.h>
#include <consensus/tx_verify.h>
#include <consensus/validation.h>
#include <cuckoocache.h>
#include <flatfile.h>
#include <hash.h>
#include <kernel/chainparams.h>
#include <kernel/disconnected_transactions.h>
#include <kernel/mempool_entry.h>
#include <kernel/messagestartchars.h>
#include <kernel/notifications_interface.h>
#include <logging.h>
#include <logging/timer.h>
#include <node/blockstorage.h>
#include <node/utxo_snapshot.h>
#include <policy/policy.h>
#include <policy/rbf.h>
#include <policy/settings.h>
#include <pow.h>
#include <primitives/block.h>
#include <primitives/transaction.h>
#include <random.h>
#include <reverse_iterator.h>
#include <script/script.h>
#include <script/sigcache.h>
#include <signet.h>
#include <tinyformat.h>
#include <txdb.h>
#include <txmempool.h>
#include <uint256.h>
#include <undo.h>
#include <util/check.h>
#include <util/fs.h>
#include <util/fs_helpers.h>
#include <util/hasher.h>
#include <util/moneystr.h>
#include <util/rbf.h>
#include <util/signalinterrupt.h>
#include <util/strencodings.h>
#include <util/time.h>
#include <util/trace.h>
#include <util/translation.h>
#include <validationinterface.h>
#include <warnings.h>
#include <algorithm>
#include <cassert>
#include <chrono>
#include <deque>
#include <numeric>
#include <optional>
#include <string>
#include <tuple>
#include <utility>

Classes
class	WarningBitsConditionChecker
	Threshold condition checker that triggers when unknown versionbits are seen on the network. More...

struct	PerBlockConnectTrace

class	ConnectTrace
	Used to track blocks whose transactions were applied to the UTXO state as a part of a single ActivateBestChainStep call. More...

struct	StopHashingException

Functions
bool	CheckInputScripts (const CTransaction &tx, TxValidationState &state, const CCoinsViewCache &inputs, unsigned int flags, bool cacheSigStore, bool cacheFullScriptStore, PrecomputedTransactionData &txdata, std::vector< CScriptCheck > *pvChecks)
	Check whether all of this transaction's input scripts succeed. More...

bool	CheckFinalTxAtTip (const CBlockIndex &active_chain_tip, const CTransaction &tx)

std::optional< LockPoints >	CalculateLockPointsAtTip (CBlockIndex *tip, const CCoinsView &coins_view, const CTransaction &tx)

bool	CheckSequenceLocksAtTip (CBlockIndex *tip, const LockPoints &lock_points)
	Check if transaction will be BIP68 final in the next block to be created on top of tip. More...

static unsigned int	GetBlockScriptFlags (const CBlockIndex &block_index, const ChainstateManager &chainman)

static void	LimitMempoolSize (CTxMemPool &pool, CCoinsViewCache &coins_cache) EXCLUSIVE_LOCKS_REQUIRED(

static bool	IsCurrentForFeeEstimation (Chainstate &active_chainstate) EXCLUSIVE_LOCKS_REQUIRED(cs_main)

static bool	CheckInputsFromMempoolAndCache (const CTransaction &tx, TxValidationState &state, const CCoinsViewCache &view, const CTxMemPool &pool, unsigned int flags, PrecomputedTransactionData &txdata, CCoinsViewCache &coins_tip) EXCLUSIVE_LOCKS_REQUIRED(cs_main
	Checks to avoid mempool polluting consensus critical paths since cached signature and script validity results will be reused if we validate this transaction again during block validation. More...

	AssertLockHeld (pool.cs)

	assert (!tx.IsCoinBase())

	for (const CTxIn &txin :tx.vin)

return	CheckInputScripts (tx, state, view, flags, true, true, txdata)

MempoolAcceptResult	AcceptToMemoryPool (Chainstate &active_chainstate, const CTransactionRef &tx, int64_t accept_time, bool bypass_limits, bool test_accept) EXCLUSIVE_LOCKS_REQUIRED(
	Try to add a transaction to the mempool. More...

PackageMempoolAcceptResult	ProcessNewPackage (Chainstate &active_chainstate, CTxMemPool &pool, const Package &package, bool test_accept)
	Validate (and maybe submit) a package to the mempool. More...

CAmount	GetBlockSubsidy (int nHeight, const Consensus::Params &consensusParams)

void	UpdateCoins (const CTransaction &tx, CCoinsViewCache &inputs, CTxUndo &txundo, int nHeight)

bool	InitScriptExecutionCache (size_t max_size_bytes)
	Initializes the script-execution cache. More...

bool	FatalError (Notifications &notifications, BlockValidationState &state, const std::string &strMessage, const bilingual_str &userMessage)

int	ApplyTxInUndo (Coin &&undo, CCoinsViewCache &view, const COutPoint &out)
	Restore the UTXO in a Coin at a given COutPoint. More...

void	StartScriptCheckWorkerThreads (int threads_num)
	Run instances of script checking worker threads. More...

void	StopScriptCheckWorkerThreads ()
	Stop all of the script checking worker threads. More...

static void	AppendWarning (bilingual_str &res, const bilingual_str &warn)
	Private helper function that concatenates warning messages. More...

static void	UpdateTipLog (const CCoinsViewCache &coins_tip, const CBlockIndex *tip, const CChainParams &params, const std::string &func_name, const std::string &prefix, const std::string &warning_messages) EXCLUSIVE_LOCKS_REQUIRED(

static SynchronizationState	GetSynchronizationState (bool init)

static bool	NotifyHeaderTip (ChainstateManager &chainman) LOCKS_EXCLUDED(cs_main)

static void	LimitValidationInterfaceQueue () LOCKS_EXCLUDED(cs_main)

static bool	CheckBlockHeader (const CBlockHeader &block, BlockValidationState &state, const Consensus::Params &consensusParams, bool fCheckPOW=true)

static bool	CheckMerkleRoot (const CBlock &block, BlockValidationState &state)

static bool	CheckWitnessMalleation (const CBlock &block, bool expect_witness_commitment, BlockValidationState &state)
	CheckWitnessMalleation performs checks for block malleation with regard to its witnesses. More...

bool	CheckBlock (const CBlock &block, BlockValidationState &state, const Consensus::Params &consensusParams, bool fCheckPOW, bool fCheckMerkleRoot)
	Functions for validating blocks and updating the block tree. More...

bool	HasValidProofOfWork (const std::vector< CBlockHeader > &headers, const Consensus::Params &consensusParams)
	Check with the proof of work on each blockheader matches the value in nBits. More...

bool	IsBlockMutated (const CBlock &block, bool check_witness_root)
	Check if a block has been mutated (with respect to its merkle root and witness commitments). More...

arith_uint256	CalculateHeadersWork (const std::vector< CBlockHeader > &headers)
	Return the sum of the work on a given set of headers. More...

static bool	ContextualCheckBlockHeader (const CBlockHeader &block, BlockValidationState &state, BlockManager &blockman, const ChainstateManager &chainman, const CBlockIndex *pindexPrev, NodeClock::time_point now) EXCLUSIVE_LOCKS_REQUIRED(
	Context-dependent validity checks. More...

static bool	ContextualCheckBlock (const CBlock &block, BlockValidationState &state, const ChainstateManager &chainman, const CBlockIndex *pindexPrev)
	NOTE: This function is not currently invoked by ConnectBlock(), so we should consider upgrade issues if we change which consensus rules are enforced in this function (eg by adding a new consensus rule). More...

bool	TestBlockValidity (BlockValidationState &state, const CChainParams &chainparams, Chainstate &chainstate, const CBlock &block, CBlockIndex *pindexPrev, const std::function< NodeClock::time_point()> &adjusted_time_callback, bool fCheckPOW, bool fCheckMerkleRoot)
	Check a block is completely valid from start to finish (only works on top of our current best block) More...

void	PruneBlockFilesManual (Chainstate &active_chainstate, int nManualPruneHeight)
	Prune block files up to a given height. More...

double	GuessVerificationProgress (const ChainTxData &data, const CBlockIndex *pindex)
	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) More...

static bool	DeleteCoinsDBFromDisk (const fs::path db_path, bool is_snapshot) EXCLUSIVE_LOCKS_REQUIRED(

static void	FlushSnapshotToDisk (CCoinsViewCache &coins_cache, bool snapshot_loaded)

static void	SnapshotUTXOHashBreakpoint (const util::SignalInterrupt &interrupt)

static ChainstateManager::Options &&	Flatten (ChainstateManager::Options &&opts)
	Apply default chain params to nullopt members. More...

bool	IsBIP30Repeat (const CBlockIndex &block_index)
	Identifies blocks that overwrote an existing coinbase output in the UTXO set (see BIP30) More...

bool	IsBIP30Unspendable (const CBlockIndex &block_index)
	Identifies blocks which coinbase output was subsequently overwritten in the UTXO set (see BIP30) More...

static fs::path	GetSnapshotCoinsDBPath (Chainstate &cs) EXCLUSIVE_LOCKS_REQUIRED(

Variables
static constexpr std::chrono::hours	DATABASE_WRITE_INTERVAL {1}
	Time to wait between writing blocks/block index to disk. More...

static constexpr std::chrono::hours	DATABASE_FLUSH_INTERVAL {24}
	Time to wait between flushing chainstate to disk. More...

static constexpr std::chrono::hours	MAX_FEE_ESTIMATION_TIP_AGE {3}
	Maximum age of our tip for us to be considered current for fee estimation. More...

const std::vector< std::string >	CHECKLEVEL_DOC
	Documentation for argument 'checklevel'. More...

static constexpr int	PRUNE_LOCK_BUFFER {10}
	The number of blocks to keep below the deepest prune lock. More...

GlobalMutex	g_best_block_mutex

std::condition_variable	g_best_block_cv

uint256	g_best_block
	Used to notify getblocktemplate RPC of new tips. More...

static bool pool	cs

static CuckooCache::cache< uint256, SignatureCacheHasher >	g_scriptExecutionCache

static CSHA256	g_scriptExecutionCacheHasher

static CCheckQueue< CScriptCheck >	scriptcheckqueue (128)

static SteadyClock::duration	time_check {}

static SteadyClock::duration	time_forks {}

static SteadyClock::duration	time_connect {}

static SteadyClock::duration	time_verify {}

static SteadyClock::duration	time_undo {}

static SteadyClock::duration	time_index {}

static SteadyClock::duration	time_total {}

static int64_t	num_blocks_total = 0

static SteadyClock::duration	time_connect_total {}

static SteadyClock::duration	time_flush {}

static SteadyClock::duration	time_chainstate {}

static SteadyClock::duration	time_post_connect {}

Function Documentation

◆ AcceptToMemoryPool()

MempoolAcceptResult AcceptToMemoryPool	(	Chainstate &	active_chainstate,
		const CTransactionRef &	tx,
		int64_t	accept_time,
		bool	bypass_limits,
		bool	test_accept
	)

Try to add a transaction to the mempool.

This is an internal function and is exposed only for testing. Client code should use ChainstateManager::ProcessTransaction()

Parameters

[in]	active_chainstate	Reference to the active chainstate.
[in]	tx	The transaction to submit for mempool acceptance.
[in]	accept_time	The timestamp for adding the transaction to the mempool. It is also used to determine when the entry expires.
[in]	bypass_limits	When true, don't enforce mempool fee and capacity limits, and set entry_sequence to zero.
[in]	test_accept	When true, run validation checks but don't submit to mempool.

Returns: a MempoolAcceptResult indicating whether the transaction was accepted/rejected with reason.

Definition at line 1575 of file validation.cpp.

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◆ AppendWarning()

static void AppendWarning	(	bilingual_str &	res,
		const bilingual_str &	warn
	)

static

Private helper function that concatenates warning messages.

Definition at line 2685 of file validation.cpp.

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◆ ApplyTxInUndo()

int ApplyTxInUndo	(	Coin &&	undo,
		CCoinsViewCache &	view,
		const COutPoint &	out
	)

Restore the UTXO in a Coin at a given COutPoint.

Parameters

undo	The Coin to be restored.
view	The coins view to which to apply the changes.
out	The out point that corresponds to the tx input.

Returns: A DisconnectResult as an int

Definition at line 1955 of file validation.cpp.

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◆ assert()

assert ( !tx. IsCoinBase() )

◆ AssertLockHeld()

AssertLockHeld ( pool. cs )

◆ CalculateHeadersWork()

arith_uint256 CalculateHeadersWork ( const std::vector< CBlockHeader > & headers )

Return the sum of the work on a given set of headers.

Definition at line 3846 of file validation.cpp.

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◆ CalculateLockPointsAtTip()

std::optional<LockPoints> CalculateLockPointsAtTip	(	CBlockIndex *	tip,
		const CCoinsView &	coins_view,
		const CTransaction &	tx
	)

Definition at line 196 of file validation.cpp.

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◆ CheckBlock()

bool CheckBlock	(	const CBlock &	block,
		BlockValidationState &	state,
		const Consensus::Params &	consensusParams,
		bool	fCheckPOW = `true`,
		bool	fCheckMerkleRoot = `true`
	)

Functions for validating blocks and updating the block tree.

Context-independent validity checks

Definition at line 3705 of file validation.cpp.

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◆ CheckBlockHeader()

static bool CheckBlockHeader	(	const CBlockHeader &	block,
		BlockValidationState &	state,
		const Consensus::Params &	consensusParams,
		bool	fCheckPOW = `true`
	)

static

Definition at line 3615 of file validation.cpp.

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◆ CheckFinalTxAtTip()

bool CheckFinalTxAtTip	(	const CBlockIndex &	active_chain_tip,
		const CTransaction &	tx
	)

Definition at line 138 of file validation.cpp.

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◆ CheckInputScripts() [1/2]

bool CheckInputScripts	(	const CTransaction &	tx,
		TxValidationState &	state,
		const CCoinsViewCache &	inputs,
		unsigned int	flags,
		bool	cacheSigStore,
		bool	cacheFullScriptStore,
		PrecomputedTransactionData &	txdata,
		std::vector< CScriptCheck > *	pvChecks
	)

Check whether all of this transaction's input scripts succeed.

This involves ECDSA signature checks so can be computationally intensive. This function should only be called after the cheap sanity checks in CheckTxInputs passed.

If pvChecks is not nullptr, script checks are pushed onto it instead of being performed inline. Any script checks which are not necessary (eg due to script execution cache hits) are, obviously, not pushed onto pvChecks/run.

Setting cacheSigStore/cacheFullScriptStore to false will remove elements from the corresponding cache which are matched. This is useful for checking blocks where we will likely never need the cache entry again.

Note that we may set state.reason to NOT_STANDARD for extra soft-fork flags in flags, block-checking callers should probably reset it to CONSENSUS in such cases.

Non-static (and re-declared) in src/test/txvalidationcache_tests.cpp

Definition at line 1855 of file validation.cpp.

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◆ CheckInputScripts() [2/2]

return CheckInputScripts	(	tx	,
		state	,
		view	,
		flags	,
		true	,
		true	,
		txdata
	)

◆ CheckInputsFromMempoolAndCache()

static bool CheckInputsFromMempoolAndCache	(	const CTransaction &	tx,
		TxValidationState &	state,
		const CCoinsViewCache &	view,
		const CTxMemPool &	pool,
		unsigned int	flags,
		PrecomputedTransactionData &	txdata,
		CCoinsViewCache &	coins_tip
	)

static

Checks to avoid mempool polluting consensus critical paths since cached signature and script validity results will be reused if we validate this transaction again during block validation.

◆ CheckMerkleRoot()

static bool CheckMerkleRoot	(	const CBlock &	block,
		BlockValidationState &	state
	)

static

Definition at line 3624 of file validation.cpp.

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◆ CheckSequenceLocksAtTip()

bool CheckSequenceLocksAtTip	(	CBlockIndex *	tip,
		const LockPoints &	lock_points
	)

Check if transaction will be BIP68 final in the next block to be created on top of tip.

Parameters

[in]	tip	Chain tip to check tx sequence locks against. For example, the tip of the current active chain.
[in]	lock_points	LockPoints containing the height and time at which this transaction is final. Simulates calling SequenceLocks() with data from the tip passed in. The LockPoints should not be considered valid if CheckSequenceLocksAtTip returns false.

Definition at line 241 of file validation.cpp.

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◆ CheckWitnessMalleation()

static bool CheckWitnessMalleation	(	const CBlock &	block,
		bool	expect_witness_commitment,
		BlockValidationState &	state
	)

static

CheckWitnessMalleation performs checks for block malleation with regard to its witnesses.

Note: If the witness commitment is expected (i.e. expect_witness_commitment = true), then the block is required to have at least one transaction and the first transaction needs to have at least one input.

Definition at line 3657 of file validation.cpp.

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◆ ContextualCheckBlock()

static bool ContextualCheckBlock	(	const CBlock &	block,
		BlockValidationState &	state,
		const ChainstateManager &	chainman,
		const CBlockIndex *	pindexPrev
	)

static

NOTE: This function is not currently invoked by ConnectBlock(), so we should consider upgrade issues if we change which consensus rules are enforced in this function (eg by adding a new consensus rule).

See comment in ConnectBlock(). Note that -reindex-chainstate skips the validation that happens here!

Definition at line 3914 of file validation.cpp.

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◆ ContextualCheckBlockHeader()

static bool ContextualCheckBlockHeader	(	const CBlockHeader &	block,
		BlockValidationState &	state,
		BlockManager &	blockman,
		const ChainstateManager &	chainman,
		const CBlockIndex *	pindexPrev,
		NodeClock::time_point	now
	)

static

Context-dependent validity checks.

By "context", we mean only the previous block headers, but not the UTXO set; UTXO-related validity checks are done in ConnectBlock(). NOTE: This function is not currently invoked by ConnectBlock(), so we should consider upgrade issues if we change which consensus rules are enforced in this function (eg by adding a new consensus rule). See comment in ConnectBlock(). Note that -reindex-chainstate skips the validation that happens here!

Definition at line 3865 of file validation.cpp.

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◆ DeleteCoinsDBFromDisk()

static bool DeleteCoinsDBFromDisk	(	const fs::path	db_path,
		bool	is_snapshot
	)

static

Definition at line 5226 of file validation.cpp.

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◆ FatalError()

bool FatalError	(	Notifications &	notifications,
		BlockValidationState &	state,
		const std::string &	strMessage,
		const bilingual_str &	userMessage
	)

Definition at line 1942 of file validation.cpp.

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◆ Flatten()

static ChainstateManager::Options&& Flatten ( ChainstateManager::Options && opts )

static

Apply default chain params to nullopt members.

This helps to avoid coding errors around the accidental use of the compare operators that accept nullopt, thus ignoring the intended default value.

Definition at line 5839 of file validation.cpp.

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◆ FlushSnapshotToDisk()

static void FlushSnapshotToDisk	(	CCoinsViewCache &	coins_cache,
		bool	snapshot_loaded
	)

static

Definition at line 5394 of file validation.cpp.

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◆ for()

for ( const CTxIn &txin :tx. vin )

Definition at line 402 of file validation.cpp.

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◆ GetBlockScriptFlags()

static unsigned int GetBlockScriptFlags	(	const CBlockIndex &	block_index,
		const ChainstateManager &	chainman
	)

static

Definition at line 2094 of file validation.cpp.

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◆ GetBlockSubsidy()

CAmount GetBlockSubsidy	(	int	nHeight,
		const Consensus::Params &	consensusParams
	)

Definition at line 1638 of file validation.cpp.

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◆ GetSnapshotCoinsDBPath()

static fs::path GetSnapshotCoinsDBPath ( Chainstate & cs )

static

Definition at line 5906 of file validation.cpp.

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◆ GetSynchronizationState()

static SynchronizationState GetSynchronizationState ( bool init )

static

Definition at line 3142 of file validation.cpp.

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◆ GuessVerificationProgress()

double GuessVerificationProgress	(	const ChainTxData &	data,
		const CBlockIndex *	pindex
	)

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)

Guess verification progress (as a fraction between 0.0=genesis and 1.0=current tip).

Definition at line 5176 of file validation.cpp.

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◆ HasValidProofOfWork()

bool HasValidProofOfWork	(	const std::vector< CBlockHeader > &	headers,
		const Consensus::Params &	consensusParams
	)

Check with the proof of work on each blockheader matches the value in nBits.

Definition at line 3809 of file validation.cpp.

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◆ InitScriptExecutionCache()

bool InitScriptExecutionCache ( size_t max_size_bytes )

Initializes the script-execution cache.

Definition at line 1817 of file validation.cpp.

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◆ IsBIP30Repeat()

bool IsBIP30Repeat ( const CBlockIndex & block_index )

Identifies blocks that overwrote an existing coinbase output in the UTXO set (see BIP30)

Definition at line 5894 of file validation.cpp.

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◆ IsBIP30Unspendable()

bool IsBIP30Unspendable ( const CBlockIndex & block_index )

Identifies blocks which coinbase output was subsequently overwritten in the UTXO set (see BIP30)

Definition at line 5900 of file validation.cpp.

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◆ IsBlockMutated()

bool IsBlockMutated	(	const CBlock &	block,
		bool	check_witness_root
	)

Check if a block has been mutated (with respect to its merkle root and witness commitments).

Definition at line 3815 of file validation.cpp.

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◆ IsCurrentForFeeEstimation()

static bool IsCurrentForFeeEstimation ( Chainstate & active_chainstate )

static

Definition at line 278 of file validation.cpp.

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◆ LimitMempoolSize()

static void LimitMempoolSize	(	CTxMemPool &	pool,
		CCoinsViewCache &	coins_cache
	)

static

Definition at line 262 of file validation.cpp.

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◆ LimitValidationInterfaceQueue()

static void LimitValidationInterfaceQueue ( )

static

Definition at line 3172 of file validation.cpp.

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◆ NotifyHeaderTip()

static bool NotifyHeaderTip ( ChainstateManager & chainman )

static

Definition at line 3149 of file validation.cpp.

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◆ ProcessNewPackage()

PackageMempoolAcceptResult ProcessNewPackage	(	Chainstate &	active_chainstate,
		CTxMemPool &	pool,
		const Package &	txns,
		bool	test_accept
	)

Validate (and maybe submit) a package to the mempool.

See doc/policy/packages.md for full details on package validation rules.

Parameters

[in] test_accept When true, run validation checks but don't submit to mempool.

Returns: a PackageMempoolAcceptResult which includes a MempoolAcceptResult for each transaction. If a transaction fails, validation will exit early and some results may be missing. It is also possible for the package to be partially submitted.

Definition at line 1606 of file validation.cpp.

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◆ PruneBlockFilesManual()

void PruneBlockFilesManual	(	Chainstate &	active_chainstate,
		int	nManualPruneHeight
	)

Prune block files up to a given height.

Definition at line 4322 of file validation.cpp.

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◆ SnapshotUTXOHashBreakpoint()

static void SnapshotUTXOHashBreakpoint ( const util::SignalInterrupt & interrupt )

static

Definition at line 5413 of file validation.cpp.

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◆ StartScriptCheckWorkerThreads()

void StartScriptCheckWorkerThreads ( int threads_num )

Run instances of script checking worker threads.

Definition at line 2058 of file validation.cpp.

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◆ StopScriptCheckWorkerThreads()

void StopScriptCheckWorkerThreads ( )

Stop all of the script checking worker threads.

Definition at line 2063 of file validation.cpp.

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◆ TestBlockValidity()

bool TestBlockValidity	(	BlockValidationState &	state,
		const CChainParams &	chainparams,
		Chainstate &	chainstate,
		const CBlock &	block,
		CBlockIndex *	pindexPrev,
		const std::function< NodeClock::time_point()> &	adjusted_time_callback,
		bool	fCheckPOW,
		bool	fCheckMerkleRoot
	)

Check a block is completely valid from start to finish (only works on top of our current best block)

Definition at line 4288 of file validation.cpp.

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◆ UpdateCoins()

void UpdateCoins	(	const CTransaction &	tx,
		CCoinsViewCache &	inputs,
		CTxUndo &	txundo,
		int	nHeight
	)

Definition at line 1793 of file validation.cpp.

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◆ UpdateTipLog()

static void UpdateTipLog	(	const CCoinsViewCache &	coins_tip,
		const CBlockIndex *	tip,
		const CChainParams &	params,
		const std::string &	func_name,
		const std::string &	prefix,
		const std::string &	warning_messages
	)

static

Definition at line 2691 of file validation.cpp.

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Variable Documentation

◆ CHECKLEVEL_DOC

const std::vector<std::string> CHECKLEVEL_DOC

Initial value:

{
    "level 0 reads the blocks from disk",
    "level 1 verifies block validity",
    "level 2 verifies undo data",
    "level 3 checks disconnection of tip blocks",
    "level 4 tries to reconnect the blocks",
    "each level includes the checks of the previous levels",
}

Documentation for argument 'checklevel'.

Definition at line 93 of file validation.cpp.

◆ cs

bool pool cs

Initial value:

{

AssertLockHeld(cs_main)

AssertLockHeld

AssertLockHeld(pool.cs)

cs_main

RecursiveMutex cs_main

Mutex to guard access to validation specific variables, such as reading or changing the chainstate...

Definition: cs_main.cpp:8

Definition at line 397 of file validation.cpp.

◆ DATABASE_FLUSH_INTERVAL

constexpr std::chrono::hours DATABASE_FLUSH_INTERVAL {24}

static

Time to wait between flushing chainstate to disk.

Definition at line 90 of file validation.cpp.

◆ DATABASE_WRITE_INTERVAL

constexpr std::chrono::hours DATABASE_WRITE_INTERVAL {1}

static

Time to wait between writing blocks/block index to disk.

Definition at line 88 of file validation.cpp.

◆ g_best_block

uint256 g_best_block

Used to notify getblocktemplate RPC of new tips.

Definition at line 110 of file validation.cpp.

◆ g_best_block_cv

std::condition_variable g_best_block_cv

Definition at line 109 of file validation.cpp.

◆ g_best_block_mutex

GlobalMutex g_best_block_mutex

Definition at line 108 of file validation.cpp.

◆ g_scriptExecutionCache

CuckooCache::cache<uint256, SignatureCacheHasher> g_scriptExecutionCache

static

Definition at line 1814 of file validation.cpp.

◆ g_scriptExecutionCacheHasher

CSHA256 g_scriptExecutionCacheHasher

static

Definition at line 1815 of file validation.cpp.

◆ MAX_FEE_ESTIMATION_TIP_AGE

constexpr std::chrono::hours MAX_FEE_ESTIMATION_TIP_AGE {3}

static

Maximum age of our tip for us to be considered current for fee estimation.

Definition at line 92 of file validation.cpp.

◆ num_blocks_total

int64_t num_blocks_total = 0

static

Definition at line 2143 of file validation.cpp.

◆ PRUNE_LOCK_BUFFER

constexpr int PRUNE_LOCK_BUFFER {10}

static

The number of blocks to keep below the deepest prune lock.

There is nothing special about this number. It is higher than what we expect to see in regular mainnet reorgs, but not so high that it would noticeably interfere with the pruning mechanism.

Definition at line 106 of file validation.cpp.

◆ scriptcheckqueue

CCheckQueue<CScriptCheck> scriptcheckqueue(128)

static

◆ time_chainstate

SteadyClock::duration time_chainstate {}

static

Definition at line 2832 of file validation.cpp.

◆ time_check

SteadyClock::duration time_check {}

static

Definition at line 2136 of file validation.cpp.

◆ time_connect

SteadyClock::duration time_connect {}

static

Definition at line 2138 of file validation.cpp.

◆ time_connect_total

SteadyClock::duration time_connect_total {}

static

Definition at line 2830 of file validation.cpp.

◆ time_flush

SteadyClock::duration time_flush {}

static

Definition at line 2831 of file validation.cpp.

◆ time_forks

SteadyClock::duration time_forks {}

static

Definition at line 2137 of file validation.cpp.

◆ time_index

SteadyClock::duration time_index {}

static

Definition at line 2141 of file validation.cpp.

◆ time_post_connect

SteadyClock::duration time_post_connect {}

static

Definition at line 2833 of file validation.cpp.

◆ time_total

SteadyClock::duration time_total {}

static

Definition at line 2142 of file validation.cpp.

◆ time_undo

SteadyClock::duration time_undo {}

static

Definition at line 2140 of file validation.cpp.

◆ time_verify

SteadyClock::duration time_verify {}

static

Definition at line 2139 of file validation.cpp.

Classes

Functions

Variables

Function Documentation

◆ AcceptToMemoryPool()

◆ AppendWarning()

◆ ApplyTxInUndo()

◆ assert()

◆ AssertLockHeld()

◆ CalculateHeadersWork()

◆ CalculateLockPointsAtTip()

◆ CheckBlock()

◆ CheckBlockHeader()

◆ CheckFinalTxAtTip()

◆ CheckInputScripts() [1/2]

◆ CheckInputScripts() [2/2]

◆ CheckInputsFromMempoolAndCache()

◆ CheckMerkleRoot()

◆ CheckSequenceLocksAtTip()

◆ CheckWitnessMalleation()

◆ ContextualCheckBlock()

◆ ContextualCheckBlockHeader()

◆ DeleteCoinsDBFromDisk()

◆ FatalError()

◆ Flatten()

◆ FlushSnapshotToDisk()

◆ for()

◆ GetBlockScriptFlags()

◆ GetBlockSubsidy()

◆ GetSnapshotCoinsDBPath()

◆ GetSynchronizationState()

◆ GuessVerificationProgress()

◆ HasValidProofOfWork()

◆ InitScriptExecutionCache()

◆ IsBIP30Repeat()

◆ IsBIP30Unspendable()

◆ IsBlockMutated()

◆ IsCurrentForFeeEstimation()

◆ LimitMempoolSize()

◆ LimitValidationInterfaceQueue()

◆ NotifyHeaderTip()

◆ ProcessNewPackage()

◆ PruneBlockFilesManual()

◆ SnapshotUTXOHashBreakpoint()

◆ StartScriptCheckWorkerThreads()

◆ StopScriptCheckWorkerThreads()

◆ TestBlockValidity()

◆ UpdateCoins()

◆ UpdateTipLog()

Variable Documentation

◆ CHECKLEVEL_DOC

◆ cs

◆ DATABASE_FLUSH_INTERVAL

◆ DATABASE_WRITE_INTERVAL

◆ g_best_block

◆ g_best_block_cv

◆ g_best_block_mutex

◆ g_scriptExecutionCache

◆ g_scriptExecutionCacheHasher

◆ MAX_FEE_ESTIMATION_TIP_AGE

◆ num_blocks_total

◆ PRUNE_LOCK_BUFFER

◆ scriptcheckqueue

◆ time_chainstate

◆ time_check

◆ time_connect

◆ time_connect_total

◆ time_flush

◆ time_forks

◆ time_index

◆ time_post_connect

◆ time_total

◆ time_undo

◆ time_verify