#include <amount.h>
#include <coins.h>
#include <crypto/common.h>
#include <fs.h>
#include <optional.h>
#include <policy/feerate.h>
#include <protocol.h>
#include <script/script_error.h>
#include <sync.h>
#include <txmempool.h>
#include <txdb.h>
#include <versionbits.h>
#include <serialize.h>
#include <atomic>
#include <map>
#include <memory>
#include <set>
#include <stdint.h>
#include <string>
#include <utility>
#include <vector>

Include dependency graph for validation.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	BlockHasher

class	CScriptCheck
	Check if transaction will be BIP 68 final in the next block to be created. More...

class	CVerifyDB
	RAII wrapper for VerifyDB: Verify consistency of the block and coin databases. More...

struct	CBlockIndexWorkComparator

class	BlockManager
	Maintains a tree of blocks (stored in `m_block_index`) which is consulted to determine where the most-work tip is. More...

class	CoinsViews
	A convenience class for constructing the CCoinsView* hierarchy used to facilitate access to the UTXO set. More...

class	CChainState
	CChainState stores and provides an API to update our local knowledge of the current best chain. More...

class	ChainstateManager
	Provides an interface for creating and interacting with one or two chainstates: an IBD chainstate generated by downloading blocks, and an optional snapshot chainstate loaded from a UTXO snapshot. More...

Typedefs
typedef std::unordered_map < uint256, CBlockIndex *, BlockHasher >	BlockMap

Enumerations
enum	SynchronizationState { SynchronizationState::INIT_REINDEX, SynchronizationState::INIT_DOWNLOAD, SynchronizationState::POST_INIT }
	Current sync state passed to tip changed callbacks. More...

enum	DisconnectResult { DISCONNECT_OK, DISCONNECT_UNCLEAN, DISCONNECT_FAILED }

enum	FlushStateMode { FlushStateMode::NONE, FlushStateMode::IF_NEEDED, FlushStateMode::PERIODIC, FlushStateMode::ALWAYS }

enum	CoinsCacheSizeState { CoinsCacheSizeState::CRITICAL = 2, CoinsCacheSizeState::LARGE = 1, CoinsCacheSizeState::OK = 0 }

Functions
FILE *	OpenBlockFile (const FlatFilePos &pos, bool fReadOnly=false)
	Open a block file (blk?????.dat) More...

fs::path	GetBlockPosFilename (const FlatFilePos &pos)
	Translation to a filesystem path. More...

void	LoadExternalBlockFile (const CChainParams &chainparams, FILE fileIn, FlatFilePos dbp=nullptr)
	Import blocks from an external file. More...

bool	LoadGenesisBlock (const CChainParams &chainparams)
	Ensures we have a genesis block in the block tree, possibly writing one to disk. More...

void	UnloadBlockIndex (CTxMemPool *mempool, ChainstateManager &chainman)
	Unload database information. More...

void	ThreadScriptCheck (int worker_num)
	Run an instance of the script checking thread. More...

CTransactionRef	GetTransaction (const CBlockIndex const block_index, const CTxMemPool const mempool, const uint256 &hash, const Consensus::Params &consensusParams, uint256 &hashBlock)
	Return transaction from the block at block_index. More...

bool	ActivateBestChain (BlockValidationState &state, const CChainParams &chainparams, std::shared_ptr< const CBlock > pblock=std::shared_ptr< const CBlock >())
	Find the best known block, and make it the tip of the block chain. More...

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

double	GuessVerificationProgress (const ChainTxData &data, const CBlockIndex *pindex)
	Guess verification progress (as a fraction between 0.0=genesis and 1.0=current tip). More...

uint64_t	CalculateCurrentUsage ()
	Calculate the amount of disk space the block & undo files currently use. More...

void	UnlinkPrunedFiles (const std::set< int > &setFilesToPrune)
	Actually unlink the specified files. More...

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

bool	AcceptToMemoryPool (CTxMemPool &pool, TxValidationState &state, const CTransactionRef &tx, std::list< CTransactionRef > plTxnReplaced, bool bypass_limits, bool test_accept=false, CAmount fee_out=nullptr) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
	(try to) add transaction to memory pool plTxnReplaced will be appended to with all transactions replaced from mempool More...

ThresholdState	VersionBitsTipState (const Consensus::Params &params, Consensus::DeploymentPos pos)
	Get the BIP9 state for a given deployment at the current tip. More...

BIP9Stats	VersionBitsTipStatistics (const Consensus::Params &params, Consensus::DeploymentPos pos)
	Get the numerical statistics for the BIP9 state for a given deployment at the current tip. More...

int	VersionBitsTipStateSinceHeight (const Consensus::Params &params, Consensus::DeploymentPos pos)
	Get the block height at which the BIP9 deployment switched into the state for the block building on the current tip. More...

void	UpdateCoins (const CTransaction &tx, CCoinsViewCache &inputs, int nHeight)
	Apply the effects of this transaction on the UTXO set represented by view. More...

bool	CheckFinalTx (const CTransaction &tx, int flags=-1) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
	Transaction validation functions. More...

bool	TestLockPointValidity (const LockPoints *lp) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
	Test whether the LockPoints height and time are still valid on the current chain. More...

void	InitScriptExecutionCache ()
	Initializes the script-execution cache. More...

bool	ReadBlockFromDisk (CBlock &block, const FlatFilePos &pos, const Consensus::Params &consensusParams)
	Functions for disk access for blocks. More...

bool	ReadBlockFromDisk (CBlock &block, const CBlockIndex *pindex, const Consensus::Params &consensusParams)

bool	ReadRawBlockFromDisk (std::vector< uint8_t > &block, const FlatFilePos &pos, const CMessageHeader::MessageStartChars &message_start)

bool	ReadRawBlockFromDisk (std::vector< uint8_t > &block, const CBlockIndex *pindex, const CMessageHeader::MessageStartChars &message_start)

bool	UndoReadFromDisk (CBlockUndo &blockundo, const CBlockIndex *pindex)

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. More...

bool	TestBlockValidity (BlockValidationState &state, const CChainParams &chainparams, const CBlock &block, CBlockIndex *pindexPrev, bool fCheckPOW=true, bool fCheckMerkleRoot=true) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
	Check a block is completely valid from start to finish (only works on top of our current best block) More...

bool	IsWitnessEnabled (const CBlockIndex *pindexPrev, const Consensus::Params &params)
	Check whether witness commitments are required for a block, and whether to enforce NULLDUMMY (BIP 147) rules. More...

void	UpdateUncommittedBlockStructures (CBlock &block, const CBlockIndex *pindexPrev, const Consensus::Params &consensusParams)
	Update uncommitted block structures (currently: only the witness reserved value). More...

std::vector< unsigned char >	GenerateCoinbaseCommitment (CBlock &block, const CBlockIndex *pindexPrev, const Consensus::Params &consensusParams)
	Produce the necessary coinbase commitment for a block (modifies the hash, don't call for mined blocks). More...

CBlockIndex *	LookupBlockIndex (const uint256 &hash) EXCLUSIVE_LOCKS_REQUIRED(cs_main)

CBlockIndex *	FindForkInGlobalIndex (const CChain &chain, const CBlockLocator &locator) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
	Find the last common block between the parameter chain and a locator. More...

bool	PreciousBlock (BlockValidationState &state, const CChainParams &params, CBlockIndex *pindex) LOCKS_EXCLUDED(cs_main)
	Mark a block as precious and reorganize. More...

bool	InvalidateBlock (BlockValidationState &state, const CChainParams &chainparams, CBlockIndex *pindex) LOCKS_EXCLUDED(cs_main)
	Mark a block as invalid. More...

void	ResetBlockFailureFlags (CBlockIndex *pindex) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
	Remove invalidity status from a block and its descendants. More...

ChainstateManager g_chainman	GUARDED_BY (::cs_main)
	DEPRECATED! Please use node.chainman instead. More...

CChainState &	ChainstateActive ()
	Please prefer the identical ChainstateManager::ActiveChainstate. More...

CChain &	ChainActive ()
	Please prefer the identical ChainstateManager::ActiveChain. More...

int	GetSpendHeight (const CCoinsViewCache &inputs)
	Return the spend height, which is one more than the inputs.GetBestBlock(). More...

int32_t	ComputeBlockVersion (const CBlockIndex *pindexPrev, const Consensus::Params &params)
	Determine what nVersion a new block should use. More...

CBlockFileInfo *	GetBlockFileInfo (size_t n)
	Get block file info entry for one block file. More...

bool	DumpMempool (const CTxMemPool &pool)
	Dump the mempool to disk. More...

bool	LoadMempool (CTxMemPool &pool)
	Load the mempool from disk. More...

bool	IsBlockPruned (const CBlockIndex *pblockindex)
	Check whether the block associated with this index entry is pruned or not. More...

Variables
static const unsigned int	DEFAULT_MIN_RELAY_TX_FEE = 1000
	Default for -minrelaytxfee, minimum relay fee for transactions. More...

static const unsigned int	DEFAULT_ANCESTOR_LIMIT = 25
	Default for -limitancestorcount, max number of in-mempool ancestors. More...

static const unsigned int	DEFAULT_ANCESTOR_SIZE_LIMIT = 101
	Default for -limitancestorsize, maximum kilobytes of tx + all in-mempool ancestors. More...

static const unsigned int	DEFAULT_DESCENDANT_LIMIT = 25
	Default for -limitdescendantcount, max number of in-mempool descendants. More...

static const unsigned int	DEFAULT_DESCENDANT_SIZE_LIMIT = 101
	Default for -limitdescendantsize, maximum kilobytes of in-mempool descendants. More...

static const unsigned int	DEFAULT_MEMPOOL_EXPIRY = 336
	Default for -mempoolexpiry, expiration time for mempool transactions in hours. More...

static const unsigned int	MAX_BLOCKFILE_SIZE = 0x8000000
	The maximum size of a blk?????.dat file (since 0.8) More...

static const int	MAX_SCRIPTCHECK_THREADS = 15
	Maximum number of dedicated script-checking threads allowed. More...

static const int	DEFAULT_SCRIPTCHECK_THREADS = 0
	-par default (number of script-checking threads, 0 = auto) More...

static const int64_t	DEFAULT_MAX_TIP_AGE = 24 * 60 * 60

static const bool	DEFAULT_CHECKPOINTS_ENABLED = true

static const bool	DEFAULT_TXINDEX = false

static const char *const	DEFAULT_BLOCKFILTERINDEX = "0"

static const bool	DEFAULT_PERSIST_MEMPOOL = true
	Default for -persistmempool. More...

static const bool	DEFAULT_FEEFILTER = true
	Default for using fee filter. More...

static const int	DEFAULT_STOPATHEIGHT = 0
	Default for -stopatheight. More...

static const unsigned int	MIN_BLOCKS_TO_KEEP = 288
	Block files containing a block-height within MIN_BLOCKS_TO_KEEP of ChainActive().Tip() will not be pruned. More...

static const signed int	DEFAULT_CHECKBLOCKS = 6

static const unsigned int	DEFAULT_CHECKLEVEL = 3

static const uint64_t	MIN_DISK_SPACE_FOR_BLOCK_FILES = 550 * 1024 * 1024

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

CBlockPolicyEstimator	feeEstimator

Mutex	g_best_block_mutex

std::condition_variable	g_best_block_cv

uint256	g_best_block

std::atomic_bool	fImporting

std::atomic_bool	fReindex

bool	g_parallel_script_checks
	Whether there are dedicated script-checking threads running. More...

bool	fRequireStandard

bool	fCheckBlockIndex

bool	fCheckpointsEnabled

CFeeRate	minRelayTxFee
	A fee rate smaller than this is considered zero fee (for relaying, mining and transaction creation) More...

int64_t	nMaxTipAge
	If the tip is older than this (in seconds), the node is considered to be in initial block download. More...

uint256	hashAssumeValid
	Block hash whose ancestors we will assume to have valid scripts without checking them. More...

arith_uint256	nMinimumChainWork
	Minimum work we will assume exists on some valid chain. More...

CBlockIndex *	pindexBestHeader
	Best header we've seen so far (used for getheaders queries' starting points). More...

bool	fHavePruned
	Pruning-related variables and constants. More...

bool	fPruneMode
	True if we're running in -prune mode. More...

uint64_t	nPruneTarget
	Number of MiB of block files that we're trying to stay below. More...

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

std::unique_ptr< CBlockTreeDB >	pblocktree
	Global variable that points to the active block tree (protected by cs_main) More...

VersionBitsCache	versionbitscache

Typedef Documentation

typedef std::unordered_map<uint256, CBlockIndex*, BlockHasher> BlockMap

Definition at line 114 of file validation.h.

Enumeration Type Documentation

enum CoinsCacheSizeState

strong

Enumerator
CRITICAL	The coins cache is in immediate need of a flush.
LARGE	The cache is at >= 90% capacity.
OK

Definition at line 483 of file validation.h.

enum DisconnectResult

Enumerator
DISCONNECT_OK
DISCONNECT_UNCLEAN
DISCONNECT_FAILED

Definition at line 326 of file validation.h.

enum FlushStateMode

strong

See also: CChainState::FlushStateToDisk

Enumerator
NONE
IF_NEEDED
PERIODIC
ALWAYS

Definition at line 336 of file validation.h.

enum SynchronizationState

strong

Current sync state passed to tip changed callbacks.

Enumerator
INIT_REINDEX
INIT_DOWNLOAD
POST_INIT

Definition at line 106 of file validation.h.

Function Documentation

bool AcceptToMemoryPool	(	CTxMemPool &	pool,
		TxValidationState &	state,
		const CTransactionRef &	tx,
		std::list< CTransactionRef > *	plTxnReplaced,
		bool	bypass_limits,
		bool	test_accept = `false`,
		CAmount *	fee_out = `nullptr`
	)

(try to) add transaction to memory pool plTxnReplaced will be appended to with all transactions replaced from mempool

Parameters

[out] fee_out optional argument to return tx fee to the caller

Definition at line 1084 of file validation.cpp.

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bool ActivateBestChain	(	BlockValidationState &	state,
		const CChainParams &	chainparams,
		std::shared_ptr< const CBlock >	pblock = `std::shared_ptr< const CBlock >()`
	)

Find the best known block, and make it the tip of the block chain.

May not be called with cs_main held. May not be called in a validationinterface callback.

Definition at line 2968 of file validation.cpp.

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uint64_t CalculateCurrentUsage ( )

Calculate the amount of disk space the block & undo files currently use.

Definition at line 3908 of file validation.cpp.

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CChain& ChainActive ( )

Please prefer the identical ChainstateManager::ActiveChain.

Definition at line 113 of file validation.cpp.

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CChainState& ChainstateActive ( )

Please prefer the identical ChainstateManager::ActiveChainstate.

Definition at line 106 of file validation.cpp.

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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 3350 of file validation.cpp.

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bool CheckFinalTx	(	const CTransaction &	tx,
		int	flags = `-1`
	)

Transaction validation functions.

Check if transaction will be final in the next block to be created.

Calls IsFinalTx() with current block height and appropriate block time.

See consensus/consensus.h for flag definitions.

Definition at line 206 of file validation.cpp.

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int32_t ComputeBlockVersion	(	const CBlockIndex *	pindexPrev,
		const Consensus::Params &	params
	)

Determine what nVersion a new block should use.

Definition at line 1830 of file validation.cpp.

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bool DumpMempool ( const CTxMemPool & pool )

Dump the mempool to disk.

Definition at line 5141 of file validation.cpp.

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CBlockIndex* FindForkInGlobalIndex	(	const CChain &	chain,
		const CBlockLocator &	locator
	)

Find the last common block between the parameter chain and a locator.

Definition at line 180 of file validation.cpp.

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std::vector<unsigned char> GenerateCoinbaseCommitment	(	CBlock &	block,
		const CBlockIndex *	pindexPrev,
		const Consensus::Params &	consensusParams
	)

Produce the necessary coinbase commitment for a block (modifies the hash, don't call for mined blocks).

Definition at line 3442 of file validation.cpp.

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CBlockFileInfo* GetBlockFileInfo ( size_t n )

Get block file info entry for one block file.

Definition at line 5021 of file validation.cpp.

fs::path GetBlockPosFilename ( const FlatFilePos & pos )

Translation to a filesystem path.

Definition at line 4076 of file validation.cpp.

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

Definition at line 1236 of file validation.cpp.

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int GetSpendHeight ( const CCoinsViewCache & inputs )

Return the spend height, which is one more than the inputs.GetBestBlock().

While checking, GetBestBlock() refers to the parent block. (protected by cs_main) This is also true for mempool checks.

Definition at line 1470 of file validation.cpp.

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CTransactionRef GetTransaction	(	const CBlockIndex *const	block_index,
		const CTxMemPool *const	mempool,
		const uint256 &	hash,
		const Consensus::Params &	consensusParams,
		uint256 &	hashBlock
	)

Return transaction from the block at block_index.

If block_index is not provided, fall back to mempool. If mempool is not provided or the tx couldn't be found in mempool, fall back to g_txindex.

Parameters

[in]	block_index	The block to read from disk, or nullptr
[in]	mempool	If block_index is not provided, look in the mempool, if provided
[in]	hash	The txid
[in]	consensusParams	The params
[out]	hashBlock	The hash of block_index, if the tx was found via block_index

Returns: The tx if found, otherwise nullptr

Definition at line 1092 of file validation.cpp.

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ChainstateManager g_chainman GUARDED_BY ( ::cs_main )

DEPRECATED! Please use node.chainman instead.

May only be used in validation.cpp internally

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

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

Definition at line 5202 of file validation.cpp.

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void InitScriptExecutionCache ( )

Initializes the script-execution cache.

Definition at line 1481 of file validation.cpp.

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bool InvalidateBlock	(	BlockValidationState &	state,
		const CChainParams &	chainparams,
		CBlockIndex *	pindex
	)

Mark a block as invalid.

Definition at line 3140 of file validation.cpp.

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bool IsBlockPruned ( const CBlockIndex * pblockindex )

inline

Check whether the block associated with this index entry is pruned or not.

Definition at line 979 of file validation.h.

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bool IsWitnessEnabled	(	const CBlockIndex *	pindexPrev,
		const Consensus::Params &	params
	)

Check whether witness commitments are required for a block, and whether to enforce NULLDUMMY (BIP 147) rules.

Note that transaction witness validation rules are always enforced when P2SH is enforced.

Definition at line 3424 of file validation.cpp.

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void LoadExternalBlockFile	(	const CChainParams &	chainparams,
		FILE *	fileIn,
		FlatFilePos *	dbp = `nullptr`
	)

Import blocks from an external file.

Definition at line 4672 of file validation.cpp.

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bool LoadGenesisBlock ( const CChainParams & chainparams )

Ensures we have a genesis block in the block tree, possibly writing one to disk.

Definition at line 4667 of file validation.cpp.

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bool LoadMempool ( CTxMemPool & pool )

Load the mempool from disk.

Definition at line 5048 of file validation.cpp.

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CBlockIndex* LookupBlockIndex ( const uint256 & hash )

Definition at line 173 of file validation.cpp.

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FILE* OpenBlockFile	(	const FlatFilePos &	pos,
		bool	fReadOnly = `false`
	)

Open a block file (blk?????.dat)

Definition at line 4067 of file validation.cpp.

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bool PreciousBlock	(	BlockValidationState &	state,
		const CChainParams &	params,
		CBlockIndex *	pindex
	)

Mark a block as precious and reorganize.

May not be called in a validationinterface callback.

Definition at line 3000 of file validation.cpp.

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void PruneBlockFilesManual ( int nManualPruneHeight )

Prune block files up to a given height.

Definition at line 3988 of file validation.cpp.

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bool ReadBlockFromDisk	(	CBlock &	block,
		const FlatFilePos &	pos,
		const Consensus::Params &	consensusParams
	)

Functions for disk access for blocks.

Definition at line 1145 of file validation.cpp.

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bool ReadBlockFromDisk	(	CBlock &	block,
		const CBlockIndex *	pindex,
		const Consensus::Params &	consensusParams
	)

Definition at line 1174 of file validation.cpp.

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bool ReadRawBlockFromDisk	(	std::vector< uint8_t > &	block,
		const FlatFilePos &	pos,
		const CMessageHeader::MessageStartChars &	message_start
	)

Definition at line 1190 of file validation.cpp.

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bool ReadRawBlockFromDisk	(	std::vector< uint8_t > &	block,
		const CBlockIndex *	pindex,
		const CMessageHeader::MessageStartChars &	message_start
	)

Definition at line 1225 of file validation.cpp.

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void ResetBlockFailureFlags ( CBlockIndex * pindex )

Remove invalidity status from a block and its descendants.

Definition at line 3178 of file validation.cpp.

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bool TestBlockValidity	(	BlockValidationState &	state,
		const CChainParams &	chainparams,
		const CBlock &	block,
		CBlockIndex *	pindexPrev,
		bool	fCheckPOW = `true`,
		bool	fCheckMerkleRoot = `true`
	)

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

Definition at line 3878 of file validation.cpp.

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bool TestLockPointValidity ( const LockPoints * lp )

Test whether the LockPoints height and time are still valid on the current chain.

Definition at line 238 of file validation.cpp.

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void ThreadScriptCheck ( int worker_num )

Run an instance of the script checking thread.

Definition at line 1823 of file validation.cpp.

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bool UndoReadFromDisk	(	CBlockUndo &	blockundo,
		const CBlockIndex *	pindex
	)

Definition at line 1628 of file validation.cpp.

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void UnlinkPrunedFiles ( const std::set< int > & setFilesToPrune )

Actually unlink the specified files.

Definition at line 3954 of file validation.cpp.

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void UnloadBlockIndex	(	CTxMemPool *	mempool,
		ChainstateManager &	chainman
	)

Unload database information.

Definition at line 4601 of file validation.cpp.

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

Apply the effects of this transaction on the UTXO set represented by view.

Definition at line 1458 of file validation.cpp.

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void UpdateUncommittedBlockStructures	(	CBlock &	block,
		const CBlockIndex *	pindexPrev,
		const Consensus::Params &	consensusParams
	)

Update uncommitted block structures (currently: only the witness reserved value).

This is safe for submitted blocks.

Definition at line 3430 of file validation.cpp.

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ThresholdState VersionBitsTipState	(	const Consensus::Params &	params,
		Consensus::DeploymentPos	pos
	)

Get the BIP9 state for a given deployment at the current tip.

Definition at line 5028 of file validation.cpp.

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int VersionBitsTipStateSinceHeight	(	const Consensus::Params &	params,
		Consensus::DeploymentPos	pos
	)

Get the block height at which the BIP9 deployment switched into the state for the block building on the current tip.

Definition at line 5040 of file validation.cpp.

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BIP9Stats VersionBitsTipStatistics	(	const Consensus::Params &	params,
		Consensus::DeploymentPos	pos
	)

Get the numerical statistics for the BIP9 state for a given deployment at the current tip.

Definition at line 5034 of file validation.cpp.

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Variable Documentation

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

Documentation for argument 'checklevel'.

Definition at line 77 of file validation.cpp.

RecursiveMutex cs_main

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

This may also need to be locked when updating the transaction pool, e.g. on AcceptToMemoryPool. See CTxMemPool::cs comment for details.

The transaction pool has a separate lock to allow reading from it and the chainstate at the same time.

Definition at line 129 of file validation.cpp.

const unsigned int DEFAULT_ANCESTOR_LIMIT = 25

static

Default for -limitancestorcount, max number of in-mempool ancestors.

Definition at line 58 of file validation.h.

const unsigned int DEFAULT_ANCESTOR_SIZE_LIMIT = 101

static

Default for -limitancestorsize, maximum kilobytes of tx + all in-mempool ancestors.

Definition at line 60 of file validation.h.

const char* const DEFAULT_BLOCKFILTERINDEX = "0"

static

Definition at line 76 of file validation.h.

const signed int DEFAULT_CHECKBLOCKS = 6

static

Definition at line 85 of file validation.h.

const unsigned int DEFAULT_CHECKLEVEL = 3

static

Definition at line 86 of file validation.h.

const bool DEFAULT_CHECKPOINTS_ENABLED = true

static

Definition at line 74 of file validation.h.

const unsigned int DEFAULT_DESCENDANT_LIMIT = 25

static

Default for -limitdescendantcount, max number of in-mempool descendants.

Definition at line 62 of file validation.h.

const unsigned int DEFAULT_DESCENDANT_SIZE_LIMIT = 101

static

Default for -limitdescendantsize, maximum kilobytes of in-mempool descendants.

Definition at line 64 of file validation.h.

const bool DEFAULT_FEEFILTER = true

static

Default for using fee filter.

Definition at line 80 of file validation.h.

const int64_t DEFAULT_MAX_TIP_AGE = 24 * 60 * 60

static

Definition at line 73 of file validation.h.

const unsigned int DEFAULT_MEMPOOL_EXPIRY = 336

static

Default for -mempoolexpiry, expiration time for mempool transactions in hours.

Definition at line 66 of file validation.h.

const unsigned int DEFAULT_MIN_RELAY_TX_FEE = 1000

static

Default for -minrelaytxfee, minimum relay fee for transactions.

Definition at line 56 of file validation.h.

const bool DEFAULT_PERSIST_MEMPOOL = true

static

Default for -persistmempool.

Definition at line 78 of file validation.h.

const int DEFAULT_SCRIPTCHECK_THREADS = 0

static

-par default (number of script-checking threads, 0 = auto)

Definition at line 72 of file validation.h.

const int DEFAULT_STOPATHEIGHT = 0

static

Default for -stopatheight.

Definition at line 82 of file validation.h.

const bool DEFAULT_TXINDEX = false

static

Definition at line 75 of file validation.h.

bool fCheckBlockIndex

Definition at line 141 of file validation.cpp.

bool fCheckpointsEnabled

Definition at line 142 of file validation.cpp.

CBlockPolicyEstimator feeEstimator

Definition at line 151 of file validation.cpp.

bool fHavePruned

Pruning-related variables and constants.

True if any block files have ever been pruned.

Definition at line 138 of file validation.cpp.

std::atomic_bool fImporting

bool fPruneMode

True if we're running in -prune mode.

Definition at line 139 of file validation.cpp.

std::atomic_bool fReindex

bool fRequireStandard

Definition at line 140 of file validation.cpp.

uint256 g_best_block

Definition at line 134 of file validation.cpp.

std::condition_variable g_best_block_cv

Definition at line 133 of file validation.cpp.

Mutex g_best_block_mutex

Definition at line 132 of file validation.cpp.

bool g_parallel_script_checks

Whether there are dedicated script-checking threads running.

False indicates all script checking is done on the main threadMessageHandler thread.

Definition at line 135 of file validation.cpp.

uint256 hashAssumeValid

Block hash whose ancestors we will assume to have valid scripts without checking them.

Definition at line 146 of file validation.cpp.

const unsigned int MAX_BLOCKFILE_SIZE = 0x8000000

static

The maximum size of a blk?????.dat file (since 0.8)

Definition at line 68 of file validation.h.

const int MAX_SCRIPTCHECK_THREADS = 15

static

Maximum number of dedicated script-checking threads allowed.

Definition at line 70 of file validation.h.

const unsigned int MIN_BLOCKS_TO_KEEP = 288

static

Block files containing a block-height within MIN_BLOCKS_TO_KEEP of ChainActive().Tip() will not be pruned.

Definition at line 84 of file validation.h.

const uint64_t MIN_DISK_SPACE_FOR_BLOCK_FILES = 550 * 1024 * 1024

static

Definition at line 95 of file validation.h.

CFeeRate minRelayTxFee

A fee rate smaller than this is considered zero fee (for relaying, mining and transaction creation)

Definition at line 149 of file validation.cpp.

int64_t nMaxTipAge

If the tip is older than this (in seconds), the node is considered to be in initial block download.

Definition at line 144 of file validation.cpp.

arith_uint256 nMinimumChainWork

Minimum work we will assume exists on some valid chain.

Definition at line 147 of file validation.cpp.

uint64_t nPruneTarget

Number of MiB of block files that we're trying to stay below.

Definition at line 143 of file validation.cpp.

std::unique_ptr<CBlockTreeDB> pblocktree

Global variable that points to the active block tree (protected by cs_main)

Definition at line 199 of file validation.cpp.

CBlockIndex* pindexBestHeader

Best header we've seen so far (used for getheaders queries' starting points).

Definition at line 131 of file validation.cpp.

VersionBitsCache versionbitscache

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