#include <amount.h>
#include <attributes.h>
#include <coins.h>
#include <consensus/validation.h>
#include <crypto/common.h>
#include <fs.h>
#include <node/utxo_snapshot.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 <util/check.h>
#include <util/hasher.h>
#include <atomic>
#include <map>
#include <memory>
#include <optional>
#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	MempoolAcceptResult
	Validation result for a single transaction mempool acceptance. More...

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

using	FopenFn = std::function< FILE (const fs::path &, const char )>

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

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...

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

MempoolAcceptResult	AcceptToMemoryPool (CChainState &active_chainstate, CTxMemPool &pool, const CTransactionRef &tx, bool bypass_limits, bool test_accept=false) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
	(Try to) add a transaction to the memory pool. 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 CBlockIndex *active_chain_tip, const CTransaction &tx, int flags=-1) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
	Transaction validation functions. More...

bool	TestLockPointValidity (CChain &active_chain, 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, CChainState &chainstate, 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...

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...

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, FopenFn mockable_fopen_function=fsbridge::fopen, bool skip_file_commit=false)
	Dump the mempool to disk. More...

bool	LoadMempool (CTxMemPool &pool, CChainState &active_chainstate, FopenFn mockable_fopen_function=fsbridge::fopen)
	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...

const AssumeutxoData *	ExpectedAssumeutxo (const int height, const CChainParams &params)
	Return the expected assumeutxo value for a given height, if one exists. 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...

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

◆ BlockMap

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

Definition at line 110 of file validation.h.

◆ FopenFn

using FopenFn = std::function<FILE*(const fs::path&, const char*)>

Definition at line 1015 of file validation.h.

Enumeration Type Documentation

◆ CoinsCacheSizeState

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 515 of file validation.h.

◆ DisconnectResult

enum DisconnectResult

Enumerator
DISCONNECT_OK
DISCONNECT_UNCLEAN
DISCONNECT_FAILED

Definition at line 343 of file validation.h.

◆ FlushStateMode

enum FlushStateMode

strong

See also: CChainState::FlushStateToDisk

Enumerator
NONE
IF_NEEDED
PERIODIC
ALWAYS

Definition at line 353 of file validation.h.

◆ SynchronizationState

enum SynchronizationState

strong

Current sync state passed to tip changed callbacks.

Enumerator
INIT_REINDEX
INIT_DOWNLOAD
POST_INIT

Definition at line 103 of file validation.h.

Function Documentation

◆ AcceptToMemoryPool()

MempoolAcceptResult AcceptToMemoryPool	(	CChainState &	active_chainstate,
		CTxMemPool &	pool,
		const CTransactionRef &	tx,
		bool	bypass_limits,
		bool	test_accept = `false`
	)

(Try to) add a transaction to the memory pool.

Parameters

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

Definition at line 1117 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ CalculateCurrentUsage()

uint64_t CalculateCurrentUsage ( )

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

Definition at line 3888 of file validation.cpp.

Here is the caller graph for this function:

◆ ChainActive()

CChain& ChainActive ( )

Please prefer the identical ChainstateManager::ActiveChain.

Definition at line 114 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ChainstateActive()

CChainState& ChainstateActive ( )

Please prefer the identical ChainstateManager::ActiveChainstate.

Definition at line 107 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ 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 3320 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ CheckFinalTx()

bool CheckFinalTx	(	const CBlockIndex *	active_chain_tip,
		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 211 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ComputeBlockVersion()

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

Determine what nVersion a new block should use.

Definition at line 1815 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ DumpMempool()

bool DumpMempool	(	const CTxMemPool &	pool,
		FopenFn	mockable_fopen_function = `fsbridge::fopen`,
		bool	skip_file_commit = `false`
	)

Dump the mempool to disk.

Definition at line 5103 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ExpectedAssumeutxo()

const AssumeutxoData* ExpectedAssumeutxo	(	const int	height,
		const CChainParams &	params
	)

Return the expected assumeutxo value for a given height, if one exists.

Parameters

[in] height Get the assumeutxo value for this height.

Returns: empty if no assumeutxo configuration exists for the given height.

Definition at line 5231 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ GenerateCoinbaseCommitment()

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 3412 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ GetBlockFileInfo()

CBlockFileInfo* GetBlockFileInfo ( size_t n )

Get block file info entry for one block file.

Definition at line 5009 of file validation.cpp.

Here is the caller graph for this function:

◆ GetBlockPosFilename()

fs::path GetBlockPosFilename ( const FlatFilePos & pos )

Translation to a filesystem path.

Definition at line 4057 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ GetBlockSubsidy()

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

Definition at line 1268 of file validation.cpp.

Here is the caller graph for this function:

◆ GetTransaction()

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 1124 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ GUARDED_BY()

ChainstateManager g_chainman GUARDED_BY ( ::cs_main )

DEPRECATED! Please use node.chainman instead.

May only be used in validation.cpp internally

◆ GuessVerificationProgress()

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 5166 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ InitScriptExecutionCache()

void InitScriptExecutionCache ( )

Initializes the script-execution cache.

Definition at line 1458 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ IsBlockPruned()

bool IsBlockPruned ( const CBlockIndex * pblockindex )

inline

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

Definition at line 1024 of file validation.h.

Here is the caller graph for this function:

◆ IsWitnessEnabled()

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 3394 of file validation.cpp.

Here is the caller graph for this function:

◆ LoadMempool()

bool LoadMempool	(	CTxMemPool &	pool,
		CChainState &	active_chainstate,
		FopenFn	mockable_fopen_function = `fsbridge::fopen`
	)

Load the mempool from disk.

Definition at line 5018 of file validation.cpp.

Here is the call graph for this function:

◆ OpenBlockFile()

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

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

Definition at line 4048 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ PruneBlockFilesManual()

void PruneBlockFilesManual	(	CChainState &	active_chainstate,
		int	nManualPruneHeight
	)

Prune block files up to a given height.

Definition at line 3968 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ReadBlockFromDisk() [1/2]

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

Definition at line 1206 of file validation.cpp.

Here is the call graph for this function:

◆ ReadBlockFromDisk() [2/2]

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

Functions for disk access for blocks.

Definition at line 1177 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ReadRawBlockFromDisk() [1/2]

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

Definition at line 1257 of file validation.cpp.

Here is the call graph for this function:

◆ ReadRawBlockFromDisk() [2/2]

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

Definition at line 1222 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ StartScriptCheckWorkerThreads()

void StartScriptCheckWorkerThreads ( int threads_num )

Run instances of script checking worker threads.

Definition at line 1803 of file validation.cpp.

Here is the caller graph for this function:

◆ StopScriptCheckWorkerThreads()

void StopScriptCheckWorkerThreads ( )

Stop all of the script checking worker threads.

Definition at line 1808 of file validation.cpp.

Here is the caller graph for this function:

◆ TestBlockValidity()

bool TestBlockValidity	(	BlockValidationState &	state,
		const CChainParams &	chainparams,
		CChainState &	chainstate,
		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 3850 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ TestLockPointValidity()

bool TestLockPointValidity	(	CChain &	active_chain,
		const LockPoints *	lp
	)

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

Definition at line 245 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ UndoReadFromDisk()

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

Definition at line 1608 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ UnlinkPrunedFiles()

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

Actually unlink the specified files.

Definition at line 3934 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ UnloadBlockIndex()

void UnloadBlockIndex	(	CTxMemPool *	mempool,
		ChainstateManager &	chainman
	)

Unload database information.

Definition at line 4586 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

◆ UpdateCoins()

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 1434 of file validation.cpp.

Here is the call graph for this function:

◆ UpdateUncommittedBlockStructures()

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 3400 of file validation.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

◆ CHECKLEVEL_DOC

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

Documentation for argument 'checklevel'.

Definition at line 78 of file validation.cpp.

◆ cs_main

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 130 of file validation.cpp.

◆ DEFAULT_ANCESTOR_LIMIT

const unsigned int DEFAULT_ANCESTOR_LIMIT = 25

static

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

Definition at line 63 of file validation.h.

◆ DEFAULT_ANCESTOR_SIZE_LIMIT

const unsigned int DEFAULT_ANCESTOR_SIZE_LIMIT = 101

static

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

Definition at line 65 of file validation.h.

◆ DEFAULT_BLOCKFILTERINDEX

const char* const DEFAULT_BLOCKFILTERINDEX = "0"

static

Definition at line 81 of file validation.h.

◆ DEFAULT_CHECKBLOCKS

const signed int DEFAULT_CHECKBLOCKS = 6

static

Definition at line 90 of file validation.h.

◆ DEFAULT_CHECKLEVEL

const unsigned int DEFAULT_CHECKLEVEL = 3

static

Definition at line 91 of file validation.h.

◆ DEFAULT_CHECKPOINTS_ENABLED

const bool DEFAULT_CHECKPOINTS_ENABLED = true

static

Definition at line 79 of file validation.h.

◆ DEFAULT_DESCENDANT_LIMIT

const unsigned int DEFAULT_DESCENDANT_LIMIT = 25

static

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

Definition at line 67 of file validation.h.

◆ DEFAULT_DESCENDANT_SIZE_LIMIT

const unsigned int DEFAULT_DESCENDANT_SIZE_LIMIT = 101

static

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

Definition at line 69 of file validation.h.

◆ DEFAULT_FEEFILTER

const bool DEFAULT_FEEFILTER = true

static

Default for using fee filter.

Definition at line 85 of file validation.h.

◆ DEFAULT_MAX_TIP_AGE

const int64_t DEFAULT_MAX_TIP_AGE = 24 * 60 * 60

static

Definition at line 78 of file validation.h.

◆ DEFAULT_MEMPOOL_EXPIRY

const unsigned int DEFAULT_MEMPOOL_EXPIRY = 336

static

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

Definition at line 71 of file validation.h.

◆ DEFAULT_MIN_RELAY_TX_FEE

const unsigned int DEFAULT_MIN_RELAY_TX_FEE = 1000

static

Default for -minrelaytxfee, minimum relay fee for transactions.

Definition at line 61 of file validation.h.

◆ DEFAULT_PERSIST_MEMPOOL

const bool DEFAULT_PERSIST_MEMPOOL = true

static

Default for -persistmempool.

Definition at line 83 of file validation.h.

◆ DEFAULT_SCRIPTCHECK_THREADS

const int DEFAULT_SCRIPTCHECK_THREADS = 0

static

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

Definition at line 77 of file validation.h.

◆ DEFAULT_STOPATHEIGHT

const int DEFAULT_STOPATHEIGHT = 0

static

Default for -stopatheight.

Definition at line 87 of file validation.h.

◆ DEFAULT_TXINDEX

const bool DEFAULT_TXINDEX = false

static

Definition at line 80 of file validation.h.

◆ fCheckBlockIndex

bool fCheckBlockIndex

Definition at line 142 of file validation.cpp.

◆ fCheckpointsEnabled

bool fCheckpointsEnabled

Definition at line 143 of file validation.cpp.

◆ fHavePruned

bool fHavePruned

Pruning-related variables and constants.

True if any block files have ever been pruned.

Definition at line 139 of file validation.cpp.

◆ fImporting

std::atomic_bool fImporting

◆ fPruneMode

bool fPruneMode

True if we're running in -prune mode.

Definition at line 140 of file validation.cpp.

◆ fReindex

std::atomic_bool fReindex

◆ fRequireStandard

bool fRequireStandard

Definition at line 141 of file validation.cpp.

◆ g_best_block

uint256 g_best_block

Definition at line 135 of file validation.cpp.

◆ g_best_block_cv

std::condition_variable g_best_block_cv

Definition at line 134 of file validation.cpp.

◆ g_best_block_mutex

Mutex g_best_block_mutex

Definition at line 133 of file validation.cpp.

◆ g_parallel_script_checks

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 136 of file validation.cpp.

◆ hashAssumeValid

uint256 hashAssumeValid

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

Definition at line 147 of file validation.cpp.

◆ MAX_BLOCKFILE_SIZE

const unsigned int MAX_BLOCKFILE_SIZE = 0x8000000

static

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

Definition at line 73 of file validation.h.

◆ MAX_SCRIPTCHECK_THREADS

const int MAX_SCRIPTCHECK_THREADS = 15

static

Maximum number of dedicated script-checking threads allowed.

Definition at line 75 of file validation.h.

◆ MIN_BLOCKS_TO_KEEP

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 89 of file validation.h.

◆ MIN_DISK_SPACE_FOR_BLOCK_FILES

const uint64_t MIN_DISK_SPACE_FOR_BLOCK_FILES = 550 * 1024 * 1024

static

Definition at line 100 of file validation.h.

◆ minRelayTxFee

CFeeRate minRelayTxFee

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

Definition at line 150 of file validation.cpp.

◆ nMaxTipAge

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 145 of file validation.cpp.

◆ nMinimumChainWork

arith_uint256 nMinimumChainWork

Minimum work we will assume exists on some valid chain.

Definition at line 148 of file validation.cpp.

◆ nPruneTarget

uint64_t nPruneTarget

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

Definition at line 144 of file validation.cpp.

◆ pblocktree

std::unique_ptr<CBlockTreeDB> pblocktree

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

Definition at line 200 of file validation.cpp.

◆ pindexBestHeader

CBlockIndex* pindexBestHeader

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

Definition at line 132 of file validation.cpp.

◆ versionbitscache

VersionBitsCache versionbitscache

Classes

Typedefs

Enumerations

Functions

Variables

Typedef Documentation

◆ BlockMap

◆ FopenFn

Enumeration Type Documentation

◆ CoinsCacheSizeState

◆ DisconnectResult

◆ FlushStateMode

◆ SynchronizationState

Function Documentation

◆ AcceptToMemoryPool()

◆ CalculateCurrentUsage()

◆ ChainActive()

◆ ChainstateActive()

◆ CheckBlock()

◆ CheckFinalTx()

◆ ComputeBlockVersion()

◆ DumpMempool()

◆ ExpectedAssumeutxo()

◆ GenerateCoinbaseCommitment()

◆ GetBlockFileInfo()

◆ GetBlockPosFilename()

◆ GetBlockSubsidy()

◆ GetTransaction()

◆ GUARDED_BY()

◆ GuessVerificationProgress()

◆ InitScriptExecutionCache()

◆ IsBlockPruned()

◆ IsWitnessEnabled()

◆ LoadMempool()

◆ OpenBlockFile()

◆ PruneBlockFilesManual()

◆ ReadBlockFromDisk() [1/2]

◆ ReadBlockFromDisk() [2/2]

◆ ReadRawBlockFromDisk() [1/2]

◆ ReadRawBlockFromDisk() [2/2]

◆ StartScriptCheckWorkerThreads()

◆ StopScriptCheckWorkerThreads()

◆ TestBlockValidity()

◆ TestLockPointValidity()

◆ UndoReadFromDisk()

◆ UnlinkPrunedFiles()

◆ UnloadBlockIndex()

◆ UpdateCoins()

◆ UpdateUncommittedBlockStructures()

Variable Documentation

◆ CHECKLEVEL_DOC

◆ cs_main

◆ DEFAULT_ANCESTOR_LIMIT

◆ DEFAULT_ANCESTOR_SIZE_LIMIT

◆ DEFAULT_BLOCKFILTERINDEX

◆ DEFAULT_CHECKBLOCKS

◆ DEFAULT_CHECKLEVEL

◆ DEFAULT_CHECKPOINTS_ENABLED

◆ DEFAULT_DESCENDANT_LIMIT

◆ DEFAULT_DESCENDANT_SIZE_LIMIT

◆ DEFAULT_FEEFILTER

◆ DEFAULT_MAX_TIP_AGE

◆ DEFAULT_MEMPOOL_EXPIRY

◆ DEFAULT_MIN_RELAY_TX_FEE

◆ DEFAULT_PERSIST_MEMPOOL

◆ DEFAULT_SCRIPTCHECK_THREADS

◆ DEFAULT_STOPATHEIGHT

◆ DEFAULT_TXINDEX

◆ fCheckBlockIndex

◆ fCheckpointsEnabled

◆ fHavePruned

◆ fImporting

◆ fPruneMode

◆ fReindex

◆ fRequireStandard

◆ g_best_block

◆ g_best_block_cv

◆ g_best_block_mutex

◆ g_parallel_script_checks

◆ hashAssumeValid