Bitcoin ABC 0.26.3
P2P Digital Currency
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#include <arith_uint256.h>
#include <attributes.h>
#include <blockfileinfo.h>
#include <blockindexcomparators.h>
#include <chain.h>
#include <common/bloom.h>
#include <config.h>
#include <consensus/amount.h>
#include <consensus/consensus.h>
#include <deploymentstatus.h>
#include <disconnectresult.h>
#include <flatfile.h>
#include <kernel/chainparams.h>
#include <kernel/chainstatemanager_opts.h>
#include <kernel/cs_main.h>
#include <node/blockstorage.h>
#include <policy/packages.h>
#include <script/script_error.h>
#include <script/script_metrics.h>
#include <shutdown.h>
#include <sync.h>
#include <txdb.h>
#include <txmempool.h>
#include <uint256.h>
#include <util/check.h>
#include <util/fs.h>
#include <util/result.h>
#include <util/translation.h>
#include <atomic>
#include <cstdint>
#include <map>
#include <memory>
#include <optional>
#include <set>
#include <string>
#include <thread>
#include <type_traits>
#include <utility>
#include <vector>
Go to the source code of this file.
Classes | |
class | BlockValidationOptions |
struct | MempoolAcceptResult |
Validation result for a transaction evaluated by MemPoolAccept (single or package). More... | |
struct | PackageMempoolAcceptResult |
Validation result for package mempool acceptance. More... | |
class | CheckInputsLimiter |
Simple class for regulating resource usage during CheckInputScripts (and CScriptCheck), atomic so as to be compatible with parallel validation. More... | |
class | TxSigCheckLimiter |
class | CScriptCheck |
Closure representing one script verification. More... | |
class | CVerifyDB |
RAII wrapper for VerifyDB: Verify consistency of the block and coin databases. More... | |
class | CoinsViews |
A convenience class for constructing the CCoinsView* hierarchy used to facilitate access to the UTXO set. More... | |
class | Chainstate |
Chainstate 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... | |
Namespaces | |
namespace | node |
namespace | Consensus |
namespace | avalanche |
Macros | |
#define | MIN_TRANSACTION_SIZE (::GetSerializeSize(CTransaction(), PROTOCOL_VERSION)) |
Enumerations | |
enum class | SynchronizationState { INIT_REINDEX , INIT_DOWNLOAD , POST_INIT } |
Current sync state passed to tip changed callbacks. More... | |
enum class | VerifyDBResult { SUCCESS , CORRUPTED_BLOCK_DB , INTERRUPTED , SKIPPED_L3_CHECKS , SKIPPED_MISSING_BLOCKS } |
enum class | FlushStateMode { NONE , IF_NEEDED , PERIODIC , ALWAYS } |
enum class | CoinsCacheSizeState { CRITICAL = 2 , LARGE = 1 , OK = 0 } |
enum class | SnapshotCompletionResult { SUCCESS , SKIPPED , MISSING_CHAINPARAMS , STATS_FAILED , HASH_MISMATCH , BASE_BLOCKHASH_MISMATCH } |
Variables | |
static const int | MAX_SCRIPTCHECK_THREADS = 15 |
Maximum number of dedicated script-checking threads allowed. | |
static const int | DEFAULT_SCRIPTCHECK_THREADS = 0 |
-par default (number of script-checking threads, 0 = auto) | |
static const bool | DEFAULT_PEERBLOOMFILTERS = true |
static const int | DEFAULT_STOPATHEIGHT = 0 |
Default for -stopatheight. | |
static const unsigned int | MIN_BLOCKS_TO_KEEP = 288 |
Block files containing a block-height within MIN_BLOCKS_TO_KEEP of ActiveChain().Tip() will not be pruned. | |
static const signed int | DEFAULT_CHECKBLOCKS = 6 |
static constexpr int | DEFAULT_CHECKLEVEL {3} |
static const uint64_t | MIN_DISK_SPACE_FOR_BLOCK_FILES = 550 * 1024 * 1024 |
Require that user allocate at least 550 MiB for block & undo files (blk???.dat and rev???.dat) At 1MB per block, 288 blocks = 288MB. | |
GlobalMutex | g_best_block_mutex |
std::condition_variable | g_best_block_cv |
const CBlockIndex * | g_best_block |
Used to notify getblocktemplate RPC of new tips. | |
const std::vector< std::string > | CHECKLEVEL_DOC |
Documentation for argument 'checklevel'. | |
bool ContextualCheckTransactionForCurrentBlock(const CBlockIndex &active_chain_tip, const Consensus::Params ¶ms, const CTransaction &tx, TxValidationState &state) EXCLUSIVE_LOCKS_REQUIRED(bool | TestBlockValidity (BlockValidationState &state, const CChainParams ¶ms, Chainstate &chainstate, const CBlock &block, CBlockIndex *pindexPrev, const std::function< NodeClock::time_point()> &adjusted_time_callback, BlockValidationOptions validationOptions) EXCLUSIVE_LOCKS_REQUIRED(cs_main) |
This is a variant of ContextualCheckTransaction which computes the contextual check for a transaction based on the chain tip. | |
#define MIN_TRANSACTION_SIZE (::GetSerializeSize(CTransaction(), PROTOCOL_VERSION)) |
Definition at line 79 of file validation.h.
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Enumerator | |
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CRITICAL | The coins cache is in immediate need of a flush. |
LARGE | The cache is at >= 90% capacity. |
OK |
Definition at line 677 of file validation.h.
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strong |
Enumerator | |
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NONE | |
IF_NEEDED | |
PERIODIC | |
ALWAYS |
Definition at line 638 of file validation.h.
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Enumerator | |
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SUCCESS | |
SKIPPED | |
MISSING_CHAINPARAMS | |
STATS_FAILED | |
HASH_MISMATCH | |
BASE_BLOCKHASH_MISMATCH |
Definition at line 1171 of file validation.h.
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Current sync state passed to tip changed callbacks.
Enumerator | |
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INIT_REINDEX | |
INIT_DOWNLOAD | |
POST_INIT |
Definition at line 114 of file validation.h.
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Enumerator | |
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SUCCESS | |
CORRUPTED_BLOCK_DB | |
INTERRUPTED | |
SKIPPED_L3_CHECKS | |
SKIPPED_MISSING_BLOCKS |
Definition at line 608 of file validation.h.
bool AbortNode | ( | BlockValidationState & | state, |
const std::string & | strMessage, | ||
const bilingual_str & | userMessage = bilingual_str{} |
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) |
Definition at line 1852 of file validation.cpp.
MempoolAcceptResult AcceptToMemoryPool | ( | Chainstate & | active_chainstate, |
const CTransactionRef & | tx, | ||
int64_t | accept_time, | ||
bool | bypass_limits, | ||
bool | test_accept = false , |
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unsigned int | heightOverride = 0 |
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) |
Try to add a transaction to the mempool.
This is an internal function and is exposed only for testing. Client code should use ChainstateManager::ProcessTransaction()
[in] | active_chainstate | Reference to the active chainstate. |
[in] | tx | The transaction to submit for mempool acceptance. |
[in] | accept_time | The timestamp for adding the transaction to the mempool. It is also used to determine when the entry expires. |
[in] | bypass_limits | When true, don't enforce mempool fee and capacity limits. |
[in] | test_accept | When true, run validation checks but don't submit to mempool. |
[in] | heightOverride | Override the block height of the transaction. Used only upon reorg. |
Definition at line 1422 of file validation.cpp.
arith_uint256 CalculateHeadersWork | ( | const std::vector< CBlockHeader > & | headers | ) |
Return the sum of the work on a given set of headers.
Definition at line 4255 of file validation.cpp.
std::optional< LockPoints > CalculateLockPointsAtTip | ( | CBlockIndex * | tip, |
const CCoinsView & | coins_view, | ||
const CTransaction & | tx | ||
) |
Calculate LockPoints required to check if transaction will be BIP68 final in the next block to be created on top of tip.
[in] | tip | Chain tip for which tx sequence locks are calculated. For example, the tip of the current active chain. |
[in] | coins_view | Any 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. |
[in] | tx | The transaction being evaluated. |
Definition at line 183 of file validation.cpp.
bool CheckBlock | ( | const CBlock & | block, |
BlockValidationState & | state, | ||
const Consensus::Params & | params, | ||
BlockValidationOptions | validationOptions | ||
) |
Functions for validating blocks and updating the block tree.
Context-independent validity checks.
Returns true if the provided block is valid (has valid header, transactions are valid, block is a valid size, etc.)
Definition at line 4158 of file validation.cpp.
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inlinestatic |
Handy shortcut to full fledged CheckInputScripts call.
Definition at line 462 of file validation.h.
bool CheckInputScripts | ( | const CTransaction & | tx, |
TxValidationState & | state, | ||
const CCoinsViewCache & | view, | ||
const uint32_t | flags, | ||
bool | sigCacheStore, | ||
bool | scriptCacheStore, | ||
const PrecomputedTransactionData & | txdata, | ||
int & | nSigChecksOut, | ||
TxSigCheckLimiter & | txLimitSigChecks, | ||
CheckInputsLimiter * | pBlockLimitSigChecks, | ||
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.
Upon success nSigChecksOut will be filled in with either:
Setting sigCacheStore/scriptCacheStore 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.
pLimitSigChecks can be passed to limit the sigchecks count either in parallel or serial validation. With pvChecks null (serial validation), breaking the pLimitSigChecks limit will abort evaluation early and return false. With pvChecks not-null (parallel validation): the cached nSigChecks may itself break the limit in which case false is returned, OR, each entry in the returned pvChecks must be executed exactly once in order to probe the limit accurately.
Definition at line 1747 of file validation.cpp.
bool CheckSequenceLocksAtTip | ( | CBlockIndex * | tip, |
const LockPoints & | lock_points | ||
) |
Check if transaction will be BIP68 final in the next block to be created on top of tip.
[in] | tip | Chain tip to check tx sequence locks against. For example, the tip of the current active chain. |
[in] | lock_points | LockPoints containing the height and time at which this transaction is final. Simulates calling SequenceLocks() with data from the tip passed in. |
Definition at line 207 of file validation.cpp.
bool DeploymentActiveAfter | ( | const CBlockIndex * | pindexPrev, |
const ChainstateManager & | chainman, | ||
DEP | dep | ||
) |
Deployment* info via ChainstateManager.
Definition at line 1573 of file validation.h.
bool DeploymentActiveAt | ( | const CBlockIndex & | index, |
const ChainstateManager & | chainman, | ||
DEP | dep | ||
) |
const AssumeutxoData * ExpectedAssumeutxo | ( | const int | height, |
const CChainParams & | params | ||
) |
Return the expected assumeutxo value for a given height, if one exists.
[in] | height | Get the assumeutxo value for this height. |
Definition at line 6302 of file validation.cpp.
Amount GetBlockSubsidy | ( | int | nHeight, |
const Consensus::Params & | consensusParams | ||
) |
Definition at line 1496 of file validation.cpp.
double GuessVerificationProgress | ( | const ChainTxData & | data, |
const CBlockIndex * | pindex | ||
) |
Guess verification progress (as a fraction between 0.0=genesis and 1.0=current tip).
Guess verification progress (as a fraction between 0.0=genesis and 1.0=current tip).
Definition at line 6250 of file validation.cpp.
bool HasValidProofOfWork | ( | const std::vector< CBlockHeader > & | headers, |
const Consensus::Params & | consensusParams | ||
) |
Check with the proof of work on each blockheader matches the value in nBits.
Definition at line 4246 of file validation.cpp.
PackageMempoolAcceptResult ProcessNewPackage | ( | Chainstate & | active_chainstate, |
CTxMemPool & | pool, | ||
const Package & | txns, | ||
bool | test_accept | ||
) |
Validate (and maybe submit) a package to the mempool.
See doc/policy/packages.md for full detailson package validation rules.
[in] | test_accept | When true, run validation checks but don't submit to mempool. |
Definition at line 1456 of file validation.cpp.
void PruneBlockFilesManual | ( | Chainstate & | active_chainstate, |
int | nManualPruneHeight | ||
) |
Prune block files up to a given height.
Definition at line 4981 of file validation.cpp.
void SpendCoins | ( | CCoinsViewCache & | view, |
const CTransaction & | tx, | ||
CTxUndo & | txundo, | ||
int | nHeight | ||
) |
Mark all the coins corresponding to a given transaction inputs as spent.
Definition at line 1705 of file validation.cpp.
Run instances of script checking worker threads.
Definition at line 1977 of file validation.cpp.
void StopScriptCheckWorkerThreads | ( | ) |
Stop all of the script checking worker threads.
Definition at line 1981 of file validation.cpp.
void UpdateCoins | ( | CCoinsViewCache & | view, |
const CTransaction & | tx, | ||
CTxUndo & | txundo, | ||
int | nHeight | ||
) |
Apply the effects of this transaction on the UTXO set represented by view.
Definition at line 1720 of file validation.cpp.
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extern |
Documentation for argument 'checklevel'.
Definition at line 98 of file validation.cpp.
Definition at line 96 of file validation.h.
Definition at line 97 of file validation.h.
Definition at line 87 of file validation.h.
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-par default (number of script-checking threads, 0 = auto)
Definition at line 85 of file validation.h.
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Default for -stopatheight.
Definition at line 90 of file validation.h.
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extern |
Used to notify getblocktemplate RPC of new tips.
Definition at line 118 of file validation.cpp.
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extern |
Definition at line 117 of file validation.cpp.
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extern |
Definition at line 116 of file validation.cpp.
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Maximum number of dedicated script-checking threads allowed.
Definition at line 83 of file validation.h.
Block files containing a block-height within MIN_BLOCKS_TO_KEEP of ActiveChain().Tip() will not be pruned.
Definition at line 95 of file validation.h.
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static |
Require that user allocate at least 550 MiB for block & undo files (blk???.dat and rev???.dat) At 1MB per block, 288 blocks = 288MB.
Add 15% for Undo data = 331MB Add 20% for Orphan block rate = 397MB We want the low water mark after pruning to be at least 397 MB and since we prune in full block file chunks, we need the high water mark which triggers the prune to be one 128MB block file + added 15% undo data = 147MB greater for a total of 545MB Setting the target to >= 550 MiB will make it likely we can respect the target.
Definition at line 111 of file validation.h.
bool ContextualCheckTransactionForCurrentBlock(const CBlockIndex &active_chain_tip, const Consensus::Params ¶ms, const CTransaction &tx, TxValidationState &state) EXCLUSIVE_LOCKS_REQUIRED(bool TestBlockValidity(BlockValidationState &state, const CChainParams ¶ms, Chainstate &chainstate, const CBlock &block, CBlockIndex *pindexPrev, const std::function< NodeClock::time_point()> &adjusted_time_callback, BlockValidationOptions validationOptions) EXCLUSIVE_LOCKS_REQUIRED(cs_main) | ( | BlockValidationState & | state, |
const CChainParams & | params, | ||
Chainstate & | chainstate, | ||
const CBlock & | block, | ||
CBlockIndex * | pindexPrev, | ||
const std::function< NodeClock::time_point()> & | adjusted_time_callback, | ||
BlockValidationOptions | validationOptions | ||
) |
This is a variant of ContextualCheckTransaction which computes the contextual check for a transaction based on the chain tip.
See consensus/consensus.h for flag definitions. Check a block is completely valid from start to finish (only works on top of our current best block)
Definition at line 593 of file validation.h.