Bitcoin Core  22.99.0
P2P Digital Currency
Classes | Macros | Functions | Variables
validation.cpp File Reference
#include <validation.h>
#include <arith_uint256.h>
#include <chain.h>
#include <chainparams.h>
#include <checkqueue.h>
#include <consensus/amount.h>
#include <consensus/consensus.h>
#include <consensus/merkle.h>
#include <consensus/tx_check.h>
#include <consensus/tx_verify.h>
#include <consensus/validation.h>
#include <cuckoocache.h>
#include <deploymentstatus.h>
#include <flatfile.h>
#include <hash.h>
#include <index/blockfilterindex.h>
#include <logging.h>
#include <logging/timer.h>
#include <node/blockstorage.h>
#include <node/coinstats.h>
#include <node/ui_interface.h>
#include <node/utxo_snapshot.h>
#include <policy/policy.h>
#include <policy/rbf.h>
#include <policy/settings.h>
#include <pow.h>
#include <primitives/block.h>
#include <primitives/transaction.h>
#include <random.h>
#include <reverse_iterator.h>
#include <script/script.h>
#include <script/sigcache.h>
#include <shutdown.h>
#include <signet.h>
#include <timedata.h>
#include <tinyformat.h>
#include <txdb.h>
#include <txmempool.h>
#include <uint256.h>
#include <undo.h>
#include <util/check.h>
#include <util/hasher.h>
#include <util/moneystr.h>
#include <util/rbf.h>
#include <util/strencodings.h>
#include <util/system.h>
#include <util/trace.h>
#include <util/translation.h>
#include <validationinterface.h>
#include <warnings.h>
#include <numeric>
#include <optional>
#include <string>
#include <boost/algorithm/string/replace.hpp>

Go to the source code of this file.

Classes

class  WarningBitsConditionChecker
 Threshold condition checker that triggers when unknown versionbits are seen on the network. More...
 
struct  PerBlockConnectTrace
 
class  ConnectTrace
 Used to track blocks whose transactions were applied to the UTXO state as a part of a single ActivateBestChainStep call. More...
 

Macros

#define MICRO   0.000001
 
#define MILLI   0.001
 

Functions

void FlushBlockFile (bool fFinalize=false, bool finalize_undo=false)
 
bool CheckInputScripts (const CTransaction &tx, TxValidationState &state, const CCoinsViewCache &inputs, unsigned int flags, bool cacheSigStore, bool cacheFullScriptStore, PrecomputedTransactionData &txdata, std::vector< CScriptCheck > *pvChecks)
 Check whether all of this transaction's input scripts succeed. More...
 
bool CheckFinalTx (const CBlockIndex *active_chain_tip, const CTransaction &tx, int flags)
 Transaction validation functions. More...
 
bool TestLockPointValidity (CChain &active_chain, const LockPoints *lp)
 Test whether the LockPoints height and time are still valid on the current chain. More...
 
bool CheckSequenceLocks (CBlockIndex *tip, const CCoinsView &coins_view, const CTransaction &tx, int flags, LockPoints *lp, bool useExistingLockPoints)
 Check if transaction will be BIP68 final in the next block to be created on top of tip. More...
 
static unsigned int GetBlockScriptFlags (const CBlockIndex *pindex, const Consensus::Params &chainparams)
 
static void LimitMempoolSize (CTxMemPool &pool, CCoinsViewCache &coins_cache, size_t limit, std::chrono::seconds age) EXCLUSIVE_LOCKS_REQUIRED(pool.cs
 
 if (expired !=0)
 
pool TrimToSize (limit, &vNoSpendsRemaining)
 
 for (const COutPoint &removed :vNoSpendsRemaining) coins_cache.Uncache(removed)
 
static bool IsCurrentForFeeEstimation (CChainState &active_chainstate) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 
static bool CheckInputsFromMempoolAndCache (const CTransaction &tx, TxValidationState &state, const CCoinsViewCache &view, const CTxMemPool &pool, unsigned int flags, PrecomputedTransactionData &txdata, CCoinsViewCache &coins_tip) EXCLUSIVE_LOCKS_REQUIRED(cs_main
 Checks to avoid mempool polluting consensus critical paths since cached signature and script validity results will be reused if we validate this transaction again during block validation. More...
 
 AssertLockHeld (pool.cs)
 
 assert (!tx.IsCoinBase())
 
 for (const CTxIn &txin :tx.vin)
 
return CheckInputScripts (tx, state, view, flags, true, true, txdata)
 
static MempoolAcceptResult AcceptToMemoryPoolWithTime (const CChainParams &chainparams, CTxMemPool &pool, CChainState &active_chainstate, const CTransactionRef &tx, int64_t nAcceptTime, bool bypass_limits, bool test_accept) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 (try to) add transaction to memory pool with a specified acceptance time More...
 
MempoolAcceptResult AcceptToMemoryPool (CChainState &active_chainstate, CTxMemPool &pool, const CTransactionRef &tx, bool bypass_limits, bool test_accept)
 (Try to) add a transaction to the memory pool. More...
 
PackageMempoolAcceptResult ProcessNewPackage (CChainState &active_chainstate, CTxMemPool &pool, const Package &package, bool test_accept)
 Atomically test acceptance of a package. More...
 
CAmount GetBlockSubsidy (int nHeight, const Consensus::Params &consensusParams)
 
static void AlertNotify (const std::string &strMessage)
 
void UpdateCoins (const CTransaction &tx, CCoinsViewCache &inputs, CTxUndo &txundo, int nHeight)
 
void UpdateCoins (const CTransaction &tx, CCoinsViewCache &inputs, int nHeight)
 Apply the effects of this transaction on the UTXO set represented by view. More...
 
void InitScriptExecutionCache ()
 Initializes the script-execution cache. More...
 
bool AbortNode (BlockValidationState &state, const std::string &strMessage, const bilingual_str &userMessage)
 
int ApplyTxInUndo (Coin &&undo, CCoinsViewCache &view, const COutPoint &out)
 Restore the UTXO in a Coin at a given COutPoint. More...
 
void StartScriptCheckWorkerThreads (int threads_num)
 Run instances of script checking worker threads. More...
 
void StopScriptCheckWorkerThreads ()
 Stop all of the script checking worker threads. More...
 
static ThresholdConditionCache warningcache[VERSIONBITS_NUM_BITSGUARDED_BY (cs_main)
 
static void DoWarning (const bilingual_str &warning)
 
static void AppendWarning (bilingual_str &res, const bilingual_str &warn)
 Private helper function that concatenates warning messages. More...
 
static void UpdateTipLog (const CCoinsViewCache &coins_tip, const CBlockIndex *tip, const CChainParams &params, const std::string &func_name, const std::string &prefix, const std::string &warning_messages) EXCLUSIVE_LOCKS_REQUIRED(
 
static SynchronizationState GetSynchronizationState (bool init)
 
static bool NotifyHeaderTip (CChainState &chainstate) LOCKS_EXCLUDED(cs_main)
 
static void LimitValidationInterfaceQueue () LOCKS_EXCLUDED(cs_main)
 
static bool CheckBlockHeader (const CBlockHeader &block, BlockValidationState &state, const Consensus::Params &consensusParams, bool fCheckPOW=true)
 
bool CheckBlock (const CBlock &block, BlockValidationState &state, const Consensus::Params &consensusParams, bool fCheckPOW, bool fCheckMerkleRoot)
 Functions for validating blocks and updating the block tree. More...
 
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...
 
static bool ContextualCheckBlockHeader (const CBlockHeader &block, BlockValidationState &state, BlockManager &blockman, const CChainParams &params, const CBlockIndex *pindexPrev, int64_t nAdjustedTime) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 Context-dependent validity checks. More...
 
static bool ContextualCheckBlock (const CBlock &block, BlockValidationState &state, const Consensus::Params &consensusParams, const CBlockIndex *pindexPrev)
 NOTE: This function is not currently invoked by ConnectBlock(), so we should consider upgrade issues if we change which consensus rules are enforced in this function (eg by adding a new consensus rule). More...
 
bool TestBlockValidity (BlockValidationState &state, const CChainParams &chainparams, CChainState &chainstate, const CBlock &block, CBlockIndex *pindexPrev, bool fCheckPOW, bool fCheckMerkleRoot)
 Check a block is completely valid from start to finish (only works on top of our current best block) More...
 
void PruneBlockFilesManual (CChainState &active_chainstate, int nManualPruneHeight)
 Prune block files up to a given height. More...
 
void UnloadBlockIndex (CTxMemPool *mempool, ChainstateManager &chainman)
 Unload database information. More...
 
bool LoadMempool (CTxMemPool &pool, CChainState &active_chainstate, FopenFn mockable_fopen_function)
 Load the mempool from disk. More...
 
bool DumpMempool (const CTxMemPool &pool, FopenFn mockable_fopen_function, bool skip_file_commit)
 Dump the mempool to disk. More...
 
double GuessVerificationProgress (const ChainTxData &data, const CBlockIndex *pindex)
 Guess how far we are in the verification process at the given block index require cs_main if pindex has not been validated yet (because nChainTx might be unset) More...
 
const AssumeutxoDataExpectedAssumeutxo (const int height, const CChainParams &chainparams)
 Return the expected assumeutxo value for a given height, if one exists. More...
 

Variables

static const unsigned int EXTRA_DESCENDANT_TX_SIZE_LIMIT = 10000
 An extra transaction can be added to a package, as long as it only has one ancestor and is no larger than this. More...
 
static const unsigned int MAX_DISCONNECTED_TX_POOL_SIZE = 20000
 Maximum kilobytes for transactions to store for processing during reorg. More...
 
static constexpr std::chrono::hours DATABASE_WRITE_INTERVAL {1}
 Time to wait between writing blocks/block index to disk. More...
 
static constexpr std::chrono::hours DATABASE_FLUSH_INTERVAL {24}
 Time to wait between flushing chainstate to disk. More...
 
static constexpr std::chrono::hours MAX_FEE_ESTIMATION_TIP_AGE {3}
 Maximum age of our tip for us to be considered current for fee estimation. More...
 
const std::vector< std::string > CHECKLEVEL_DOC
 Documentation for argument 'checklevel'. More...
 
RecursiveMutex cs_main
 Mutex to guard access to validation specific variables, such as reading or changing the chainstate. More...
 
CBlockIndexpindexBestHeader = 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
 Used to notify getblocktemplate RPC of new tips. More...
 
bool g_parallel_script_checks {false}
 Whether there are dedicated script-checking threads running. More...
 
bool fRequireStandard = true
 
bool fCheckBlockIndex = false
 
bool fCheckpointsEnabled = DEFAULT_CHECKPOINTS_ENABLED
 
int64_t nMaxTipAge = DEFAULT_MAX_TIP_AGE
 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...
 
CFeeRate minRelayTxFee = CFeeRate(DEFAULT_MIN_RELAY_TX_FEE)
 A fee rate smaller than this is considered zero fee (for relaying, mining and transaction creation) More...
 
RecursiveMutex cs_LastBlockFile
 
std::vector< CBlockFileInfovinfoBlockFile
 
int nLastBlockFile
 
bool fCheckForPruning
 Global flag to indicate we should check to see if there are block/undo files that should be deleted. More...
 
std::set< CBlockIndex * > setDirtyBlockIndex
 Dirty block index entries. More...
 
std::set< int > setDirtyFileInfo
 Dirty block file entries. More...
 
std::vector< COutPointvNoSpendsRemaining
 
static bool pool cs
 
static CuckooCache::cache< uint256, SignatureCacheHasherg_scriptExecutionCache
 
static CSHA256 g_scriptExecutionCacheHasher
 
static CCheckQueue< CScriptCheckscriptcheckqueue (128)
 
static int64_t nTimeCheck = 0
 
static int64_t nTimeForks = 0
 
static int64_t nTimeVerify = 0
 
static int64_t nTimeConnect = 0
 
static int64_t nTimeIndex = 0
 
static int64_t nTimeTotal = 0
 
static int64_t nBlocksTotal = 0
 
static int64_t nTimeReadFromDisk = 0
 
static int64_t nTimeConnectTotal = 0
 
static int64_t nTimeFlush = 0
 
static int64_t nTimeChainState = 0
 
static int64_t nTimePostConnect = 0
 
static const uint64_t MEMPOOL_DUMP_VERSION = 1
 

Macro Definition Documentation

◆ MICRO

#define MICRO   0.000001

Definition at line 64 of file validation.cpp.

◆ MILLI

#define MILLI   0.001

Definition at line 65 of file validation.cpp.

Function Documentation

◆ AbortNode()

bool AbortNode ( BlockValidationState state,
const std::string &  strMessage,
const bilingual_str userMessage 
)

Definition at line 1385 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ 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_limitsWhen true, don't enforce mempool fee limits.
[in]test_acceptWhen true, run validation checks but don't submit to mempool.

Definition at line 1041 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ AcceptToMemoryPoolWithTime()

static MempoolAcceptResult AcceptToMemoryPoolWithTime ( const CChainParams chainparams,
CTxMemPool pool,
CChainState active_chainstate,
const CTransactionRef tx,
int64_t  nAcceptTime,
bool  bypass_limits,
bool  test_accept 
)
static

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

Definition at line 1015 of file validation.cpp.

Here is the caller graph for this function:

◆ AlertNotify()

static void AlertNotify ( const std::string &  strMessage)
static

Definition at line 1153 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ AppendWarning()

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

Private helper function that concatenates warning messages.

Definition at line 2088 of file validation.cpp.

Here is the call graph for this function:

◆ ApplyTxInUndo()

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

Restore the UTXO in a Coin at a given COutPoint.

Parameters
undoThe Coin to be restored.
viewThe coins view to which to apply the changes.
outThe out point that corresponds to the tx input.
Returns
A DisconnectResult as an int

Definition at line 1398 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ assert()

assert ( !tx.  IsCoinBase())

◆ AssertLockHeld()

AssertLockHeld ( pool.  cs)

◆ 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 2929 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ CheckBlockHeader()

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

Definition at line 2920 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 182 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ CheckInputScripts() [1/2]

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

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

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

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

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

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

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

Definition at line 1297 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ CheckInputScripts() [2/2]

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

◆ CheckInputsFromMempoolAndCache()

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

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

◆ CheckSequenceLocks()

bool CheckSequenceLocks ( CBlockIndex tip,
const CCoinsView coins_view,
const CTransaction tx,
int  flags,
LockPoints lp = nullptr,
bool  useExistingLockPoints = false 
)

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

Parameters
[in]tipChain tip to check tx sequence locks against. For example, the tip of the current active chain.
[in]coins_viewAny CCoinsView that provides access to the relevant coins for checking sequence locks. For example, it can be a CCoinsViewCache that isn't connected to anything but contains all the relevant coins, or a CCoinsViewMemPool that is connected to the mempool and chainstate UTXO set. In the latter case, the caller is responsible for holding the appropriate locks to ensure that calls to GetCoin() return correct coins. Simulates calling SequenceLocks() with data from the tip passed in. Optionally stores in LockPoints the resulting height and time calculated and the hash of the block needed for calculation or skips the calculation and uses the LockPoints passed in for evaluation. The LockPoints should not be considered valid if CheckSequenceLocks returns false.

See consensus/consensus.h for flag definitions.

Definition at line 233 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ ContextualCheckBlock()

static bool ContextualCheckBlock ( const CBlock block,
BlockValidationState state,
const Consensus::Params consensusParams,
const CBlockIndex pindexPrev 
)
static

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

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

Definition at line 3113 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ ContextualCheckBlockHeader()

static bool ContextualCheckBlockHeader ( const CBlockHeader block,
BlockValidationState state,
BlockManager blockman,
const CChainParams params,
const CBlockIndex pindexPrev,
int64_t  nAdjustedTime 
)
static

Context-dependent validity checks.

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

Definition at line 3066 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ DoWarning()

static void DoWarning ( const bilingual_str warning)
static

Definition at line 2077 of file validation.cpp.

Here is the call graph for this function:

◆ DumpMempool()

bool DumpMempool ( const CTxMemPool pool,
FopenFn  mockable_fopen_function,
bool  skip_file_commit 
)

Dump the mempool to disk.

Definition at line 4540 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]heightGet the assumeutxo value for this height.
Returns
empty if no assumeutxo configuration exists for the given height.

Definition at line 4669 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ FlushBlockFile()

void FlushBlockFile ( bool  fFinalize = false,
bool  finalize_undo = false 
)

Definition at line 179 of file blockstorage.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ for() [1/2]

for ( const COutPoint &removed :vNoSpendsRemaining  )

◆ for() [2/2]

for ( const CTxIn &txin :tx.  vin)

Definition at line 395 of file validation.cpp.

Here is the call 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 3015 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ GetBlockScriptFlags()

static unsigned int GetBlockScriptFlags ( const CBlockIndex pindex,
const Consensus::Params chainparams 
)
static

Definition at line 1524 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 1068 of file validation.cpp.

Here is the caller graph for this function:

◆ GetSynchronizationState()

static SynchronizationState GetSynchronizationState ( bool  init)
static

Definition at line 2498 of file validation.cpp.

Here is the caller graph for this function:

◆ GUARDED_BY()

static ThresholdConditionCache warningcache [VERSIONBITS_NUM_BITS] GUARDED_BY ( cs_main  )
static

◆ GuessVerificationProgress()

double GuessVerificationProgress ( const ChainTxData data,
const CBlockIndex pindex 
)

Guess how far we are in the verification process at the given block index require cs_main if pindex has not been validated yet (because nChainTx might be unset)

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

Definition at line 4603 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ if()

if ( expired !  = 0)

Definition at line 311 of file validation.cpp.

Here is the caller graph for this function:

◆ InitScriptExecutionCache()

void InitScriptExecutionCache ( )

Initializes the script-execution cache.

Definition at line 1262 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ IsCurrentForFeeEstimation()

static bool IsCurrentForFeeEstimation ( CChainState active_chainstate)
static

Definition at line 321 of file validation.cpp.

Here is the call graph for this function:

◆ LimitMempoolSize()

static void LimitMempoolSize ( CTxMemPool pool,
CCoinsViewCache coins_cache,
size_t  limit,
std::chrono::seconds  age 
)
static
Here is the caller graph for this function:

◆ LimitValidationInterfaceQueue()

static void LimitValidationInterfaceQueue ( )
static

Definition at line 2527 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ LoadMempool()

bool LoadMempool ( CTxMemPool pool,
CChainState active_chainstate,
FopenFn  mockable_fopen_function 
)

Load the mempool from disk.

Definition at line 4456 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ NotifyHeaderTip()

static bool NotifyHeaderTip ( CChainState chainstate)
static

Definition at line 2505 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ ProcessNewPackage()

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

Atomically test acceptance of a package.

If the package only contains one tx, package rules still apply. Package validation does not allow BIP125 replacements, so the transaction(s) cannot spend the same inputs as any transaction in the mempool.

Parameters
[in]txnsGroup of transactions which may be independent or contain parent-child dependencies. The transactions must not conflict with each other, i.e., must not spend the same inputs. If any dependencies exist, parents must appear anywhere in the list before their children.
Returns
a PackageMempoolAcceptResult which includes a MempoolAcceptResult for each transaction. If a transaction fails, validation will exit early and some results may be missing.

Definition at line 1047 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 3527 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 1487 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 1492 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,
bool  fCheckMerkleRoot 
)

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

Definition at line 3433 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 215 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ TrimToSize()

pool TrimToSize ( limit  ,
vNoSpendsRemaining 
)

◆ UnloadBlockIndex()

void UnloadBlockIndex ( CTxMemPool mempool,
ChainstateManager chainman 
)

Unload database information.

Definition at line 4009 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ UpdateCoins() [1/2]

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

Definition at line 1224 of file validation.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ UpdateCoins() [2/2]

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 1239 of file validation.cpp.

Here is the call graph for this function:

◆ UpdateTipLog()

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

Definition at line 2094 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 3003 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
Initial value:
{
"level 0 reads the blocks from disk",
"level 1 verifies block validity",
"level 2 verifies undo data",
"level 3 checks disconnection of tip blocks",
"level 4 tries to reconnect the blocks",
"each level includes the checks of the previous levels",
}

Documentation for argument 'checklevel'.

Definition at line 81 of file validation.cpp.

◆ cs

bool pool cs
Initial value:

Definition at line 390 of file validation.cpp.

◆ cs_LastBlockFile

RecursiveMutex cs_LastBlockFile

Definition at line 30 of file blockstorage.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 118 of file validation.cpp.

◆ DATABASE_FLUSH_INTERVAL

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

Time to wait between flushing chainstate to disk.

Definition at line 78 of file validation.cpp.

◆ DATABASE_WRITE_INTERVAL

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

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

Definition at line 76 of file validation.cpp.

◆ EXTRA_DESCENDANT_TX_SIZE_LIMIT

const unsigned int EXTRA_DESCENDANT_TX_SIZE_LIMIT = 10000
static

An extra transaction can be added to a package, as long as it only has one ancestor and is no larger than this.

Not really any reason to make this configurable as it doesn't materially change DoS parameters.

Definition at line 72 of file validation.cpp.

◆ fCheckBlockIndex

bool fCheckBlockIndex = false

Definition at line 126 of file validation.cpp.

◆ fCheckForPruning

bool fCheckForPruning

Global flag to indicate we should check to see if there are block/undo files that should be deleted.

Set on startup or if we allocate more file space when we're in prune mode

Definition at line 37 of file blockstorage.cpp.

◆ fCheckpointsEnabled

bool fCheckpointsEnabled = DEFAULT_CHECKPOINTS_ENABLED

Definition at line 127 of file validation.cpp.

◆ fRequireStandard

bool fRequireStandard = true

Definition at line 125 of file validation.cpp.

◆ g_best_block

uint256 g_best_block

Used to notify getblocktemplate RPC of new tips.

Definition at line 123 of file validation.cpp.

◆ g_best_block_cv

std::condition_variable g_best_block_cv

Definition at line 122 of file validation.cpp.

◆ g_best_block_mutex

Mutex g_best_block_mutex

Definition at line 121 of file validation.cpp.

◆ g_parallel_script_checks

bool g_parallel_script_checks {false}

Whether there are dedicated script-checking threads running.

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

Definition at line 124 of file validation.cpp.

◆ g_scriptExecutionCache

CuckooCache::cache<uint256, SignatureCacheHasher> g_scriptExecutionCache
static

Definition at line 1259 of file validation.cpp.

◆ g_scriptExecutionCacheHasher

CSHA256 g_scriptExecutionCacheHasher
static

Definition at line 1260 of file validation.cpp.

◆ hashAssumeValid

uint256 hashAssumeValid

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

Definition at line 130 of file validation.cpp.

◆ MAX_DISCONNECTED_TX_POOL_SIZE

const unsigned int MAX_DISCONNECTED_TX_POOL_SIZE = 20000
static

Maximum kilobytes for transactions to store for processing during reorg.

Definition at line 74 of file validation.cpp.

◆ MAX_FEE_ESTIMATION_TIP_AGE

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

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

Definition at line 80 of file validation.cpp.

◆ MEMPOOL_DUMP_VERSION

const uint64_t MEMPOOL_DUMP_VERSION = 1
static

Definition at line 4454 of file validation.cpp.

◆ minRelayTxFee

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

Definition at line 133 of file validation.cpp.

◆ nBlocksTotal

int64_t nBlocksTotal = 0
static

Definition at line 1577 of file validation.cpp.

◆ nLastBlockFile

int nLastBlockFile

Definition at line 32 of file blockstorage.cpp.

◆ nMaxTipAge

int64_t nMaxTipAge = DEFAULT_MAX_TIP_AGE

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

Definition at line 128 of file validation.cpp.

◆ nMinimumChainWork

arith_uint256 nMinimumChainWork

Minimum work we will assume exists on some valid chain.

Definition at line 131 of file validation.cpp.

◆ nTimeChainState

int64_t nTimeChainState = 0
static

Definition at line 2224 of file validation.cpp.

◆ nTimeCheck

int64_t nTimeCheck = 0
static

Definition at line 1571 of file validation.cpp.

◆ nTimeConnect

int64_t nTimeConnect = 0
static

Definition at line 1574 of file validation.cpp.

◆ nTimeConnectTotal

int64_t nTimeConnectTotal = 0
static

Definition at line 2222 of file validation.cpp.

◆ nTimeFlush

int64_t nTimeFlush = 0
static

Definition at line 2223 of file validation.cpp.

◆ nTimeForks

int64_t nTimeForks = 0
static

Definition at line 1572 of file validation.cpp.

◆ nTimeIndex

int64_t nTimeIndex = 0
static

Definition at line 1575 of file validation.cpp.

◆ nTimePostConnect

int64_t nTimePostConnect = 0
static

Definition at line 2225 of file validation.cpp.

◆ nTimeReadFromDisk

int64_t nTimeReadFromDisk = 0
static

Definition at line 2221 of file validation.cpp.

◆ nTimeTotal

int64_t nTimeTotal = 0
static

Definition at line 1576 of file validation.cpp.

◆ nTimeVerify

int64_t nTimeVerify = 0
static

Definition at line 1573 of file validation.cpp.

◆ pindexBestHeader

CBlockIndex* pindexBestHeader = nullptr

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

Definition at line 120 of file validation.cpp.

◆ scriptcheckqueue

CCheckQueue<CScriptCheck> scriptcheckqueue(128)
static

◆ setDirtyBlockIndex

std::set<CBlockIndex*> setDirtyBlockIndex

Dirty block index entries.

Definition at line 40 of file blockstorage.cpp.

◆ setDirtyFileInfo

std::set<int> setDirtyFileInfo

Dirty block file entries.

Definition at line 43 of file blockstorage.cpp.

◆ vinfoBlockFile

std::vector<CBlockFileInfo> vinfoBlockFile

Definition at line 31 of file blockstorage.cpp.

◆ vNoSpendsRemaining

std::vector<COutPoint> vNoSpendsRemaining

Definition at line 315 of file validation.cpp.

AssertLockHeld
AssertLockHeld(pool.cs)
cs_main
RecursiveMutex cs_main
Mutex to guard access to validation specific variables, such as reading or changing the chainstate.
Definition: validation.cpp:118