#include "validation.h"
#include "addrman.h"
#include "blocksignature.h"
#include "budget/budgetmanager.h"
#include "chainparams.h"
#include "checkpoints.h"
#include "checkqueue.h"
#include "consensus/consensus.h"
#include "consensus/merkle.h"
#include "consensus/tx_verify.h"
#include "consensus/validation.h"
#include "consensus/zerocoin_verify.h"
#include "evo/evodb.h"
#include "evo/specialtx_validation.h"
#include "flatfile.h"
#include "guiinterface.h"
#include "interfaces/handler.h"
#include "invalid.h"
#include "kernel.h"
#include "legacy/validation_zerocoin_legacy.h"
#include "llmq/quorums_chainlocks.h"
#include "masternode-payments.h"
#include "masternodeman.h"
#include "policy/policy.h"
#include "pow.h"
#include "reverse_iterate.h"
#include "script/sigcache.h"
#include "shutdown.h"
#include "spork.h"
#include "sporkdb.h"
#include "tiertwo/tiertwo_sync_state.h"
#include "txdb.h"
#include "undo.h"
#include "util/blockstatecatcher.h"
#include "util/system.h"
#include "util/validation.h"
#include "utilmoneystr.h"
#include "validationinterface.h"
#include "warnings.h"
#include "zpiv/zpivmodule.h"
#include <future>
#include <boost/algorithm/string/replace.hpp>
#include <boost/thread.hpp>
#include <atomic>
#include <queue>

Include dependency graph for validation.cpp:

Classes
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...

class	CMainCleanup

Namespaces
	Consensus

Enumerations
enum	FlushStateMode { FLUSH_STATE_NONE , FLUSH_STATE_IF_NEEDED , FLUSH_STATE_PERIODIC , FLUSH_STATE_ALWAYS }

enum	DisconnectResult { DISCONNECT_OK , DISCONNECT_UNCLEAN , DISCONNECT_FAILED }

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

CBlockIndex *	GetChainTip ()
	Return a reliable pointer (in mapBlockIndex) to the chain's tip index. More...

bool	CheckFinalTx (const CTransactionRef &tx, int flags)
	Check if transaction will be final in the next block to be created. More...

void	LimitMempoolSize (CTxMemPool &pool, size_t limit, unsigned long age)

CAmount	GetMinRelayFee (const CTransaction &tx, const CTxMemPool &pool, unsigned int nBytes)

CAmount	GetMinRelayFee (unsigned int nBytes)

CAmount	GetShieldedTxMinFee (const CTransaction &tx)
	Return the minimum fee for a shielded tx. More...

bool	AcceptToMemoryPoolWithTime (CTxMemPool &pool, CValidationState &state, const CTransactionRef &tx, bool fLimitFree, bool *pfMissingInputs, int64_t nAcceptTime, bool fOverrideMempoolLimit, bool fRejectAbsurdFee, bool fIgnoreFees)
	(try to) add transaction to memory pool with a specified acceptance time More...

bool	AcceptToMemoryPool (CTxMemPool &pool, CValidationState &state, const CTransactionRef &tx, bool fLimitFree, bool *pfMissingInputs, bool fOverrideMempoolLimit, bool fRejectInsaneFee, bool ignoreFees)
	(try to) add transaction to memory pool More...

bool	GetOutput (const uint256 &hash, unsigned int index, CValidationState &state, CTxOut &out)
	Retrieve an output (from memory pool, or from disk, if possible) More...

bool	GetTransaction (const uint256 &hash, CTransactionRef &txOut, uint256 &hashBlock, bool fAllowSlow, CBlockIndex *blockIndex)
	Return transaction in tx, and if it was found inside a block, its hash is placed in hashBlock. More...

bool	WriteBlockToDisk (const CBlock &block, FlatFilePos &pos)
	Functions for disk access for blocks. More...

bool	ReadBlockFromDisk (CBlock &block, const FlatFilePos &pos)

bool	ReadBlockFromDisk (CBlock &block, const CBlockIndex *pindex)

double	ConvertBitsToDouble (unsigned int nBits)

CAmount	GetBlockValue (int nHeight)

int64_t	GetMasternodePayment (int nHeight)

bool	IsInitialBlockDownload ()
	Check whether we are doing an initial block download (synchronizing from disk or network) More...

void	CheckForkWarningConditions ()

void	CheckForkWarningConditionsOnNewFork (CBlockIndex *pindexNewForkTip)

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

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

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

bool	Consensus::CheckTxInputs (const CTransaction &tx, CValidationState &state, const CCoinsViewCache &inputs, int nSpendHeight)

bool	CheckInputs (const CTransaction &tx, CValidationState &state, const CCoinsViewCache &inputs, bool fScriptChecks, unsigned int flags, bool cacheStore, PrecomputedTransactionData &precomTxData, std::vector< CScriptCheck > *pvChecks)
	Check transaction inputs, and make sure any pay-to-script-hash transactions are evaluating IsStandard scripts. More...

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

DisconnectResult	DisconnectBlock (CBlock &block, const CBlockIndex *pindex, CCoinsViewCache &view)
	Undo the effects of this block (with given index) on the UTXO set represented by coins. More...

bool	FindUndoPos (CValidationState &state, int nFile, FlatFilePos &pos, unsigned int nAddSize)

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

void	FlushStateToDisk ()
	Flush all state, indexes and buffers to disk. More...

bool	ActivateBestChain (CValidationState &state, std::shared_ptr< const CBlock > pblock)
	Make the best chain active, in multiple steps. More...

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

bool	ReconsiderBlock (CValidationState &state, CBlockIndex *pindex)
	Remove invalidity status from a block and its descendants. More...

bool	ReceivedBlockTransactions (const CBlock &block, CValidationState &state, CBlockIndex *pindexNew, const FlatFilePos &pos)
	Mark a block as having its data received and checked (up to BLOCK_VALID_TRANSACTIONS). More...

bool	FindBlockPos (CValidationState &state, FlatFilePos &pos, unsigned int nAddSize, unsigned int nHeight, uint64_t nTime, bool fKnown=false)

bool	CheckColdStakeFreeOutput (const CTransaction &tx, const int nHeight)

bool	CheckBlock (const CBlock &block, CValidationState &state, bool fCheckPOW, bool fCheckMerkleRoot, bool fCheckSig)
	Functions for validating blocks and updating the block tree. More...

bool	CheckWork (const CBlock &block, const CBlockIndex *const pindexPrev)

bool	CheckBlockTime (const CBlockHeader &block, CValidationState &state, CBlockIndex *const pindexPrev)

bool	ContextualCheckBlockHeader (const CBlockHeader &block, CValidationState &state, CBlockIndex *const pindexPrev)
	Context-dependent validity checks. More...

bool	ContextualCheckBlock (const CBlock &block, CValidationState &state, CBlockIndex *const pindexPrev)

bool	AcceptBlockHeader (const CBlock &block, CValidationState &state, CBlockIndex *ppindex, CBlockIndex pindexPrev)

bool	ProcessNewBlock (const std::shared_ptr< const CBlock > &pblock, const FlatFilePos *dbp)
	Process an incoming block. More...

bool	TestBlockValidity (CValidationState &state, const CBlock &block, CBlockIndex *const pindexPrev, bool fCheckPOW, bool fCheckMerkleRoot, bool fCheckBlockSig)
	Check a block is completely valid from start to finish (only works on top of our current best block, with cs_main held) More...

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

FILE *	OpenUndoFile (const FlatFilePos &pos, bool fReadOnly)
	Open an undo file (rev?????.dat) More...

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

CBlockIndex *	InsertBlockIndex (const uint256 &hash)
	Create a new block index entry for a given block hash. More...

bool	LoadChainTip (const CChainParams &chainparams)
	Update the chain tip based on database information. More...

bool	ReplayBlocks (const CChainParams &params, CCoinsView *view)
	Replay blocks that aren't fully applied to the database. More...

void	UnloadBlockIndex ()
	Unload database information. More...

bool	LoadBlockIndex (std::string &strError)
	Load the block tree and coins database from disk, initializing state if we're running with -reindex. More...

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

bool	LoadExternalBlockFile (FILE fileIn, FlatFilePos dbp)
	Import blocks from an external file. More...

int	ActiveProtocol ()
	See whether the protocol update is enforced for connected nodes. More...

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

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

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

Variables
RecursiveMutex	cs_main
	Global state. More...

BlockMap	mapBlockIndex

PrevBlockMap	mapPrevBlockIndex

CChain	chainActive
	The currently-connected chain of blocks (protected by cs_main). More...

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

Mutex	g_best_block_mutex

std::condition_variable	g_best_block_cv

uint256	g_best_block

int64_t	g_best_block_time = 0

int	nScriptCheckThreads = 0

std::atomic< bool >	fImporting {false}

std::atomic< bool >	fReindex {false}

bool	fTxIndex = true

bool	fRequireStandard = true

bool	fCheckBlockIndex = false

size_t	nCoinCacheUsage = 5000 * 300

int64_t	nMaxTipAge = DEFAULT_MAX_TIP_AGE

CFeeRate	minRelayTxFee = CFeeRate(10000)
	Fees smaller than this (in upiv) are considered zero fee (for relaying, mining and transaction creation) We are ~100 times smaller then bitcoin now (2015-06-23), set minRelayTxFee only 10 times higher so it's still 10 times lower comparing to bitcoin. More...

CTxMemPool	mempool (::minRelayTxFee)

std::map< uint256, int64_t >	mapRejectedBlocks

CMoneySupply	MoneySupply

CScript	COINBASE_FLAGS
	Constant stuff for coinbase transactions we create: More...

std::unique_ptr< CCoinsViewDB >	pcoinsdbview
	Global variable that points to the coins database (protected by cs_main) More...

std::unique_ptr< CCoinsViewCache >	pcoinsTip
	Global variable that points to the active CCoinsView (protected by cs_main) More...

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

std::unique_ptr< CZerocoinDB >	zerocoinDB
	Global variable that points to the zerocoin database (protected by cs_main) More...

std::unique_ptr< CSporkDB >	pSporkDB
	Global variable that points to the spork database (protected by cs_main) More...

std::unique_ptr< AccumulatorCache >	accumulatorCache
	In-memory cache for the zerocoin accumulators. More...

CBlockIndex *	pindexBestForkTip = nullptr

CBlockIndex *	pindexBestForkBase = nullptr

class CMainCleanup	instance_of_cmaincleanup

Enumeration Type Documentation

◆ DisconnectResult

enum DisconnectResult

Enumerator
DISCONNECT_OK
DISCONNECT_UNCLEAN
DISCONNECT_FAILED

Definition at line 1241 of file validation.cpp.

◆ FlushStateMode

enum FlushStateMode

Enumerator
FLUSH_STATE_NONE
FLUSH_STATE_IF_NEEDED
FLUSH_STATE_PERIODIC
FLUSH_STATE_ALWAYS

Definition at line 212 of file validation.cpp.

Function Documentation

◆ AcceptBlockHeader()

bool AcceptBlockHeader	(	const CBlock &	block,
		CValidationState &	state,
		CBlockIndex **	ppindex,
		CBlockIndex *	pindexPrev
	)

Todo:: : ENABLE BLOCK CACHE IN SPECIFIC CASES

Definition at line 3034 of file validation.cpp.

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◆ AcceptToMemoryPool()

bool AcceptToMemoryPool	(	CTxMemPool &	pool,
		CValidationState &	state,
		const CTransactionRef &	tx,
		bool	fLimitFree,
		bool *	pfMissingInputs,
		bool	fOverrideMempoolLimit,
		bool	fRejectInsaneFee,
		bool	ignoreFees
	)

(try to) add transaction to memory pool

Definition at line 649 of file validation.cpp.

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◆ AcceptToMemoryPoolWithTime()

bool AcceptToMemoryPoolWithTime	(	CTxMemPool &	pool,
		CValidationState &	state,
		const CTransactionRef &	tx,
		bool	fLimitFree,
		bool *	pfMissingInputs,
		int64_t	nAcceptTime,
		bool	fOverrideMempoolLimit,
		bool	fRejectAbsurdFee,
		bool	fIgnoreFees
	)

(try to) add transaction to memory pool with a specified acceptance time

Definition at line 632 of file validation.cpp.

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◆ ActivateBestChain()

bool ActivateBestChain	(	CValidationState &	state,
		std::shared_ptr< const CBlock >	pblock
	)

Make the best chain active, in multiple steps.

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

The result is either failure or an activated best chain. pblock is either nullptr or a pointer to a block that is already loaded (to avoid loading it again from disk).

Definition at line 2280 of file validation.cpp.

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◆ ActiveProtocol()

int ActiveProtocol ( )

See whether the protocol update is enforced for connected nodes.

Definition at line 4222 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 1255 of file validation.cpp.

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◆ CheckBlock()

bool CheckBlock	(	const CBlock &	block,
		CValidationState &	state,
		bool	fCheckPOW = `true`,
		bool	fCheckMerkleRoot = `true`,
		bool	fCheckSig = `true`
	)

Functions for validating blocks and updating the block tree.

Context-independent validity checks

Definition at line 2701 of file validation.cpp.

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◆ CheckBlockTime()

bool CheckBlockTime	(	const CBlockHeader &	block,
		CValidationState &	state,
		CBlockIndex *const	pindexPrev
	)

Definition at line 2865 of file validation.cpp.

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◆ CheckColdStakeFreeOutput()

bool CheckColdStakeFreeOutput	(	const CTransaction &	tx,
		const int	nHeight
	)

Definition at line 2637 of file validation.cpp.

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◆ CheckFinalTx()

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

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 224 of file validation.cpp.

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◆ CheckForkWarningConditions()

void CheckForkWarningConditions ( )

Definition at line 905 of file validation.cpp.

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◆ CheckForkWarningConditionsOnNewFork()

void CheckForkWarningConditionsOnNewFork ( CBlockIndex * pindexNewForkTip )

Definition at line 947 of file validation.cpp.

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◆ CheckInputs()

bool CheckInputs	(	const CTransaction &	tx,
		CValidationState &	state,
		const CCoinsViewCache &	view,
		bool	fScriptChecks,
		unsigned int	flags,
		bool	cacheStore,
		PrecomputedTransactionData &	precomTxData,
		std::vector< CScriptCheck > *	pvChecks = `nullptr`
	)

Check transaction inputs, and make sure any pay-to-script-hash transactions are evaluating IsStandard scripts.

Why bother? To avoid denial-of-service attacks; an attacker can submit a standard HASH... OP_EQUAL transaction, which will get accepted into blocks. The redemption script can be anything; an attacker could use a very expensive-to-check-upon-redemption script like: DUP CHECKSIG DROP ... repeated 100 times... OP_1 Check whether all inputs of this transaction are valid (no double spends, scripts & sigs, amounts) This does not modify the UTXO set. If pvChecks is not nullptr, script checks are pushed onto it instead of being performed inline.

Definition at line 1104 of file validation.cpp.

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◆ CheckWork()

bool CheckWork	(	const CBlock &	block,
		const CBlockIndex *const	pindexPrev
	)

Definition at line 2833 of file validation.cpp.

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◆ ContextualCheckBlock()

bool ContextualCheckBlock	(	const CBlock &	block,
		CValidationState &	state,
		CBlockIndex *const	pindexPrev
	)

Definition at line 2958 of file validation.cpp.

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◆ ContextualCheckBlockHeader()

bool ContextualCheckBlockHeader	(	const CBlockHeader &	block,
		CValidationState &	state,
		CBlockIndex *const	pindexPrev
	)

Context-dependent validity checks.

Definition at line 2909 of file validation.cpp.

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◆ ConvertBitsToDouble()

double ConvertBitsToDouble ( unsigned int nBits )

Definition at line 797 of file validation.cpp.

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◆ DisconnectBlock()

DisconnectResult DisconnectBlock	(	CBlock &	block,
		const CBlockIndex *	pindex,
		CCoinsViewCache &	view
	)

Undo the effects of this block (with given index) on the UTXO set represented by coins.

When FAILED is returned, view is left in an indeterminate state.

Definition at line 1286 of file validation.cpp.

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◆ DumpMempool()

bool DumpMempool ( const CTxMemPool & pool )

Dump the mempool to disk.

Definition at line 4312 of file validation.cpp.

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◆ FindBlockPos()

bool FindBlockPos	(	CValidationState &	state,
		FlatFilePos &	pos,
		unsigned int	nAddSize,
		unsigned int	nHeight,
		uint64_t	nTime,
		bool	fKnown = `false`
	)

Definition at line 2570 of file validation.cpp.

◆ FindForkInGlobalIndex()

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

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

Definition at line 181 of file validation.cpp.

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◆ FindUndoPos()

bool FindUndoPos	(	CValidationState &	state,
		int	nFile,
		FlatFilePos &	pos,
		unsigned int	nAddSize
	)

Definition at line 2617 of file validation.cpp.

◆ FlushStateToDisk()

void FlushStateToDisk ( )

Flush all state, indexes and buffers to disk.

Definition at line 1848 of file validation.cpp.

◆ GetBlockFileInfo()

CBlockFileInfo* GetBlockFileInfo ( size_t n )

Get block file info entry for one block file.

Definition at line 4240 of file validation.cpp.

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◆ GetBlockPosFilename()

fs::path GetBlockPosFilename ( const FlatFilePos & pos )

Translation to a filesystem path.

Definition at line 3504 of file validation.cpp.

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◆ GetBlockValue()

CAmount GetBlockValue ( int nHeight )

Definition at line 816 of file validation.cpp.

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◆ GetChainTip()

CBlockIndex* GetChainTip ( )

Return a reliable pointer (in mapBlockIndex) to the chain's tip index.

Definition at line 194 of file validation.cpp.

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◆ GetMasternodePayment()

int64_t GetMasternodePayment ( int nHeight )

Definition at line 852 of file validation.cpp.

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◆ GetMinRelayFee() [1/2]

CAmount GetMinRelayFee	(	const CTransaction &	tx,
		const CTxMemPool &	pool,
		unsigned int	nBytes
	)

Definition at line 265 of file validation.cpp.

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◆ GetMinRelayFee() [2/2]

CAmount GetMinRelayFee ( unsigned int nBytes )

Definition at line 279 of file validation.cpp.

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◆ GetOutput()

bool GetOutput	(	const uint256 &	hash,
		unsigned int	index,
		CValidationState &	state,
		CTxOut &	out
	)

Retrieve an output (from memory pool, or from disk, if possible)

Definition at line 656 of file validation.cpp.

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◆ GetShieldedTxMinFee()

CAmount GetShieldedTxMinFee ( const CTransaction & tx )

Return the minimum fee for a shielded tx.

Definition at line 288 of file validation.cpp.

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◆ GetSpendHeight()

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 1044 of file validation.cpp.

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◆ GetTransaction()

bool GetTransaction	(	const uint256 &	hash,
		CTransactionRef &	txOut,
		uint256 &	hashBlock,
		bool	fAllowSlow,
		CBlockIndex *	blockIndex
	)

Return transaction in tx, and if it was found inside a block, its hash is placed in hashBlock.

Retrieve a transaction (from memory pool, or from disk, if possible)

Definition at line 671 of file validation.cpp.

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◆ InsertBlockIndex()

CBlockIndex* InsertBlockIndex ( const uint256 & hash )

Create a new block index entry for a given block hash.

Definition at line 3509 of file validation.cpp.

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◆ InvalidateBlock()

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

Mark a block as invalid.

Definition at line 2376 of file validation.cpp.

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◆ IsInitialBlockDownload()

bool IsInitialBlockDownload ( )

Check whether we are doing an initial block download (synchronizing from disk or network)

Definition at line 862 of file validation.cpp.

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◆ LimitMempoolSize()

void LimitMempoolSize	(	CTxMemPool &	pool,
		size_t	limit,
		unsigned long	age
	)

Definition at line 254 of file validation.cpp.

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◆ LoadBlockIndex()

bool LoadBlockIndex ( std::string & strError )

Load the block tree and coins database from disk, initializing state if we're running with -reindex.

Definition at line 3903 of file validation.cpp.

◆ LoadChainTip()

bool LoadChainTip ( const CChainParams & chainparams )

Update the chain tip based on database information.

Definition at line 3642 of file validation.cpp.

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◆ LoadExternalBlockFile()

bool LoadExternalBlockFile	(	FILE *	fileIn,
		FlatFilePos *	dbp
	)

Import blocks from an external file.

Definition at line 3962 of file validation.cpp.

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◆ LoadGenesisBlock()

bool LoadGenesisBlock ( )

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

Definition at line 3930 of file validation.cpp.

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◆ LoadMempool()

bool LoadMempool ( CTxMemPool & pool )

Load the mempool from disk.

Definition at line 4247 of file validation.cpp.

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◆ OpenBlockFile()

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

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

Definition at line 3494 of file validation.cpp.

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◆ OpenUndoFile()

FILE* OpenUndoFile	(	const FlatFilePos &	pos,
		bool	fReadOnly
	)

Open an undo file (rev?????.dat)

Definition at line 3499 of file validation.cpp.

◆ ProcessNewBlock()

bool ProcessNewBlock	(	const std::shared_ptr< const CBlock > &	pblock,
		const FlatFilePos *	dbp
	)

Process an incoming block.

This only returns after the best known valid block is made active. Note that it does not, however, guarantee that the specific block passed to it has been checked for validity!

If you want to possibly get feedback on whether pblock is valid, you must install a CValidationInterface (see validationinterface.h) - this will have its BlockChecked method called whenever any block completes validation.

Note that we guarantee that either the proof-of-work is valid on pblock, or (and possibly also) BlockChecked will have been called.

Parameters

[in]	pblock	The block we want to process.
[out]	dbp	The already known disk position of pblock, or nullptr if not yet stored.

Returns: True if state.IsValid()

Definition at line 3412 of file validation.cpp.

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◆ ReadBlockFromDisk() [1/2]

bool ReadBlockFromDisk	(	CBlock &	block,
		const CBlockIndex *	pindex
	)

Definition at line 783 of file validation.cpp.

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◆ ReadBlockFromDisk() [2/2]

bool ReadBlockFromDisk	(	CBlock &	block,
		const FlatFilePos &	pos
	)

Definition at line 758 of file validation.cpp.

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◆ ReceivedBlockTransactions()

bool ReceivedBlockTransactions	(	const CBlock &	block,
		CValidationState &	state,
		CBlockIndex *	pindexNew,
		const FlatFilePos &	pos
	)

Mark a block as having its data received and checked (up to BLOCK_VALID_TRANSACTIONS).

Definition at line 2504 of file validation.cpp.

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◆ ReconsiderBlock()

bool ReconsiderBlock	(	CValidationState &	state,
		CBlockIndex *	pindex
	)

Remove invalidity status from a block and its descendants.

Definition at line 2419 of file validation.cpp.

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◆ ReplayBlocks()

bool ReplayBlocks	(	const CChainParams &	params,
		CCoinsView *	view
	)

Replay blocks that aren't fully applied to the database.

Definition at line 3813 of file validation.cpp.

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◆ TestBlockValidity()

bool TestBlockValidity	(	CValidationState &	state,
		const CBlock &	block,
		CBlockIndex *const	pindexPrev,
		bool	fCheckPOW,
		bool	fCheckMerkleRoot,
		bool	fCheckBlockSig
	)

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

Definition at line 3450 of file validation.cpp.

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◆ ThreadScriptCheck()

void ThreadScriptCheck ( )

Run an instance of the script checking thread.

Definition at line 1413 of file validation.cpp.

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◆ UnloadBlockIndex()

void UnloadBlockIndex ( )

Unload database information.

Definition at line 3882 of file validation.cpp.

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◆ UpdateCoins() [1/2]

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

Definition at line 1014 of file validation.cpp.

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◆ UpdateCoins() [2/2]

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

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

Definition at line 1032 of file validation.cpp.

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◆ WriteBlockToDisk()

bool WriteBlockToDisk	(	const CBlock &	block,
		FlatFilePos &	pos
	)

Functions for disk access for blocks.

Definition at line 737 of file validation.cpp.

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Variable Documentation

◆ accumulatorCache

std::unique_ptr<AccumulatorCache> accumulatorCache

In-memory cache for the zerocoin accumulators.

Definition at line 210 of file validation.cpp.

◆ chainActive

CChain chainActive

The currently-connected chain of blocks (protected by cs_main).

Definition at line 84 of file validation.cpp.

◆ COINBASE_FLAGS

CScript COINBASE_FLAGS

Constant stuff for coinbase transactions we create:

Definition at line 119 of file validation.cpp.

◆ cs_main

RecursiveMutex cs_main

Global state.

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 80 of file validation.cpp.

◆ fCheckBlockIndex

bool fCheckBlockIndex = false

Definition at line 98 of file validation.cpp.

◆ fImporting

std::atomic<bool> fImporting {false}

Definition at line 94 of file validation.cpp.

◆ fReindex

std::atomic<bool> fReindex {false}

Definition at line 95 of file validation.cpp.

◆ fRequireStandard

bool fRequireStandard = true

Definition at line 97 of file validation.cpp.

◆ fTxIndex

bool fTxIndex = true

Definition at line 96 of file validation.cpp.

◆ g_best_block

uint256 g_best_block

Definition at line 90 of file validation.cpp.

◆ g_best_block_cv

std::condition_variable g_best_block_cv

Definition at line 89 of file validation.cpp.

◆ g_best_block_mutex

Mutex g_best_block_mutex

Definition at line 88 of file validation.cpp.

◆ g_best_block_time

int64_t g_best_block_time = 0

Definition at line 91 of file validation.cpp.

◆ instance_of_cmaincleanup

class CMainCleanup instance_of_cmaincleanup

◆ mapBlockIndex

BlockMap mapBlockIndex

Definition at line 82 of file validation.cpp.

◆ mapPrevBlockIndex

PrevBlockMap mapPrevBlockIndex

Definition at line 83 of file validation.cpp.

◆ mapRejectedBlocks

std::map<uint256, int64_t> mapRejectedBlocks

Definition at line 112 of file validation.cpp.

◆ mempool

CTxMemPool mempool(::minRelayTxFee) ( ::minRelayTxFee )

◆ minRelayTxFee

CFeeRate minRelayTxFee = CFeeRate(10000)

Fees smaller than this (in upiv) are considered zero fee (for relaying, mining and transaction creation) We are ~100 times smaller then bitcoin now (2015-06-23), set minRelayTxFee only 10 times higher so it's still 10 times lower comparing to bitcoin.

Definition at line 108 of file validation.cpp.

◆ MoneySupply

CMoneySupply MoneySupply

Definition at line 114 of file validation.cpp.

◆ nCoinCacheUsage

size_t nCoinCacheUsage = 5000 * 300

Definition at line 99 of file validation.cpp.

◆ nMaxTipAge

int64_t nMaxTipAge = DEFAULT_MAX_TIP_AGE

Definition at line 102 of file validation.cpp.

◆ nScriptCheckThreads

int nScriptCheckThreads = 0

Definition at line 93 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 207 of file validation.cpp.

◆ pcoinsdbview

std::unique_ptr<CCoinsViewDB> pcoinsdbview

Global variable that points to the coins database (protected by cs_main)

Definition at line 205 of file validation.cpp.

◆ pcoinsTip

std::unique_ptr<CCoinsViewCache> pcoinsTip

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

Definition at line 206 of file validation.cpp.

◆ pindexBestForkBase

CBlockIndex * pindexBestForkBase = nullptr

Definition at line 885 of file validation.cpp.

◆ pindexBestForkTip

CBlockIndex* pindexBestForkTip = nullptr

Definition at line 885 of file validation.cpp.

◆ pindexBestHeader

CBlockIndex* pindexBestHeader = nullptr

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

Definition at line 85 of file validation.cpp.

◆ pSporkDB

std::unique_ptr<CSporkDB> pSporkDB

Global variable that points to the spork database (protected by cs_main)

Definition at line 209 of file validation.cpp.

◆ zerocoinDB

std::unique_ptr<CZerocoinDB> zerocoinDB

Global variable that points to the zerocoin database (protected by cs_main)

Definition at line 208 of file validation.cpp.

Classes

Namespaces

Enumerations

Functions

Variables

Enumeration Type Documentation

◆ DisconnectResult

◆ FlushStateMode

Function Documentation

◆ AcceptBlockHeader()

◆ AcceptToMemoryPool()

◆ AcceptToMemoryPoolWithTime()

◆ ActivateBestChain()

◆ ActiveProtocol()

◆ ApplyTxInUndo()

◆ CheckBlock()

◆ CheckBlockTime()

◆ CheckColdStakeFreeOutput()

◆ CheckFinalTx()

◆ CheckForkWarningConditions()

◆ CheckForkWarningConditionsOnNewFork()

◆ CheckInputs()

◆ CheckWork()

◆ ContextualCheckBlock()

◆ ContextualCheckBlockHeader()

◆ ConvertBitsToDouble()

◆ DisconnectBlock()

◆ DumpMempool()

◆ FindBlockPos()

◆ FindForkInGlobalIndex()

◆ FindUndoPos()

◆ FlushStateToDisk()

◆ GetBlockFileInfo()

◆ GetBlockPosFilename()

◆ GetBlockValue()

◆ GetChainTip()

◆ GetMasternodePayment()

◆ GetMinRelayFee() [1/2]

◆ GetMinRelayFee() [2/2]

◆ GetOutput()

◆ GetShieldedTxMinFee()

◆ GetSpendHeight()

◆ GetTransaction()

◆ InsertBlockIndex()

◆ InvalidateBlock()

◆ IsInitialBlockDownload()

◆ LimitMempoolSize()

◆ LoadBlockIndex()

◆ LoadChainTip()

◆ LoadExternalBlockFile()

◆ LoadGenesisBlock()

◆ LoadMempool()

◆ OpenBlockFile()

◆ OpenUndoFile()

◆ ProcessNewBlock()

◆ ReadBlockFromDisk() [1/2]

◆ ReadBlockFromDisk() [2/2]

◆ ReceivedBlockTransactions()

◆ ReconsiderBlock()

◆ ReplayBlocks()

◆ TestBlockValidity()

◆ ThreadScriptCheck()

◆ UnloadBlockIndex()

◆ UpdateCoins() [1/2]

◆ UpdateCoins() [2/2]

◆ WriteBlockToDisk()

Variable Documentation

◆ accumulatorCache

◆ chainActive

◆ COINBASE_FLAGS

◆ cs_main

◆ fCheckBlockIndex

◆ fImporting

◆ fReindex

◆ fRequireStandard

◆ fTxIndex

◆ g_best_block

◆ g_best_block_cv

◆ g_best_block_mutex

◆ g_best_block_time