![]() |
Bitcoin Core 22.99.0
P2P Digital Currency
|
#include <arith_uint256.h>
#include <attributes.h>
#include <chain.h>
#include <consensus/amount.h>
#include <fs.h>
#include <policy/feerate.h>
#include <policy/packages.h>
#include <script/script_error.h>
#include <sync.h>
#include <txdb.h>
#include <txmempool.h>
#include <uint256.h>
#include <util/check.h>
#include <util/hasher.h>
#include <util/translation.h>
#include <atomic>
#include <map>
#include <memory>
#include <optional>
#include <set>
#include <stdint.h>
#include <string>
#include <thread>
#include <utility>
#include <vector>
Go to the source code of this file.
Classes | |
struct | MempoolAcceptResult |
Validation result for a single transaction mempool acceptance. More... | |
struct | PackageMempoolAcceptResult |
Validation result for package mempool acceptance. More... | |
class | CScriptCheck |
Closure representing one script verification Note that this stores references to the spending transaction. 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 class | SynchronizationState { INIT_REINDEX , INIT_DOWNLOAD , POST_INIT } |
Current sync state passed to tip changed callbacks. More... | |
enum | DisconnectResult { DISCONNECT_OK , DISCONNECT_UNCLEAN , DISCONNECT_FAILED } |
enum class | FlushStateMode { NONE , IF_NEEDED , PERIODIC , ALWAYS } |
enum class | CoinsCacheSizeState { CRITICAL = 2 , LARGE = 1 , OK = 0 } |
Functions | |
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... | |
CAmount | GetBlockSubsidy (int nHeight, const Consensus::Params &consensusParams) |
bool | AbortNode (BlockValidationState &state, const std::string &strMessage, const bilingual_str &userMessage=bilingual_str{}) |
double | GuessVerificationProgress (const ChainTxData &data, const CBlockIndex *pindex) |
Guess verification progress (as a fraction between 0.0=genesis and 1.0=current tip). 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... | |
PackageMempoolAcceptResult | ProcessNewPackage (CChainState &active_chainstate, CTxMemPool &pool, const Package &txns, bool test_accept) EXCLUSIVE_LOCKS_REQUIRED(cs_main) |
Atomically test acceptance of a package. 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... | |
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. More... | |
void | InitScriptExecutionCache () |
Initializes the script-execution cache. More... | |
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... | |
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... | |
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... | |
const AssumeutxoData * | ExpectedAssumeutxo (const int height, const CChainParams ¶ms) |
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 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 constexpr bool | DEFAULT_COINSTATSINDEX {false} |
static const char *const | DEFAULT_BLOCKFILTERINDEX = "0" |
static const bool | DEFAULT_PERSIST_MEMPOOL = true |
Default for -persistmempool. 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 ActiveChain().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 |
Used to notify getblocktemplate RPC of new tips. More... | |
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... | |
const std::vector< std::string > | CHECKLEVEL_DOC |
Documentation for argument 'checklevel'. More... | |
typedef std::unordered_map<uint256, CBlockIndex*, BlockHasher> BlockMap |
Definition at line 100 of file validation.h.
Definition at line 1017 of file validation.h.
|
strong |
Enumerator | |
---|---|
CRITICAL | The coins cache is in immediate need of a flush. |
LARGE | The cache is at >= 90% capacity. |
OK |
Definition at line 520 of file validation.h.
enum DisconnectResult |
Enumerator | |
---|---|
DISCONNECT_OK | |
DISCONNECT_UNCLEAN | |
DISCONNECT_FAILED |
Definition at line 345 of file validation.h.
|
strong |
Enumerator | |
---|---|
NONE | |
IF_NEEDED | |
PERIODIC | |
ALWAYS |
Definition at line 355 of file validation.h.
|
strong |
Current sync state passed to tip changed callbacks.
Enumerator | |
---|---|
INIT_REINDEX | |
INIT_DOWNLOAD | |
POST_INIT |
Definition at line 93 of file validation.h.
bool AbortNode | ( | BlockValidationState & | state, |
const std::string & | strMessage, | ||
const bilingual_str & | userMessage = bilingual_str{} |
||
) |
Definition at line 1379 of file validation.cpp.
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.
[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 1041 of file validation.cpp.
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 2922 of file validation.cpp.
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.
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.
[in] | tip | Chain tip to check tx sequence locks against. 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. 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.
bool DumpMempool | ( | const CTxMemPool & | pool, |
FopenFn | mockable_fopen_function = fsbridge::fopen , |
||
bool | skip_file_commit = false |
||
) |
Dump the mempool to disk.
Definition at line 4533 of file validation.cpp.
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 4662 of file validation.cpp.
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 3008 of file validation.cpp.
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).
Guess verification progress (as a fraction between 0.0=genesis and 1.0=current tip).
Definition at line 4596 of file validation.cpp.
void InitScriptExecutionCache | ( | ) |
Initializes the script-execution cache.
Definition at line 1256 of file validation.cpp.
bool LoadMempool | ( | CTxMemPool & | pool, |
CChainState & | active_chainstate, | ||
FopenFn | mockable_fopen_function = fsbridge::fopen |
||
) |
Load the mempool from disk.
Definition at line 4449 of file validation.cpp.
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.
[in] | txns | Group 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. |
Definition at line 1047 of file validation.cpp.
void PruneBlockFilesManual | ( | CChainState & | active_chainstate, |
int | nManualPruneHeight | ||
) |
Prune block files up to a given height.
Definition at line 3520 of file validation.cpp.
void StartScriptCheckWorkerThreads | ( | int | threads_num | ) |
Run instances of script checking worker threads.
Definition at line 1481 of file validation.cpp.
void StopScriptCheckWorkerThreads | ( | ) |
Stop all of the script checking worker threads.
Definition at line 1486 of file validation.cpp.
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 3426 of file validation.cpp.
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.
void UnloadBlockIndex | ( | CTxMemPool * | mempool, |
ChainstateManager & | chainman | ||
) |
Unload database information.
Definition at line 4002 of file validation.cpp.
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 2996 of file validation.cpp.
|
extern |
Documentation for argument 'checklevel'.
Definition at line 81 of file validation.cpp.
|
extern |
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.
|
static |
Default for -limitancestorcount, max number of in-mempool ancestors.
Definition at line 56 of file validation.h.
|
static |
Default for -limitancestorsize, maximum kilobytes of tx + all in-mempool ancestors.
Definition at line 58 of file validation.h.
|
static |
Definition at line 73 of file validation.h.
|
static |
Definition at line 80 of file validation.h.
|
static |
Definition at line 81 of file validation.h.
|
static |
Definition at line 70 of file validation.h.
|
staticconstexpr |
Definition at line 72 of file validation.h.
|
static |
Default for -limitdescendantcount, max number of in-mempool descendants.
Definition at line 60 of file validation.h.
|
static |
Default for -limitdescendantsize, maximum kilobytes of in-mempool descendants.
Definition at line 62 of file validation.h.
|
static |
Definition at line 69 of file validation.h.
|
static |
Default for -mempoolexpiry, expiration time for mempool transactions in hours.
Definition at line 64 of file validation.h.
|
static |
Default for -minrelaytxfee, minimum relay fee for transactions.
Definition at line 54 of file validation.h.
|
static |
Default for -persistmempool.
Definition at line 75 of file validation.h.
|
static |
-par default (number of script-checking threads, 0 = auto)
Definition at line 68 of file validation.h.
|
static |
Default for -stopatheight.
Definition at line 77 of file validation.h.
|
static |
Definition at line 71 of file validation.h.
|
extern |
Definition at line 126 of file validation.cpp.
|
extern |
Definition at line 127 of file validation.cpp.
|
extern |
Definition at line 125 of file validation.cpp.
|
extern |
Used to notify getblocktemplate RPC of new tips.
Definition at line 123 of file validation.cpp.
|
extern |
Definition at line 122 of file validation.cpp.
|
extern |
Definition at line 121 of file validation.cpp.
|
extern |
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.
|
extern |
Block hash whose ancestors we will assume to have valid scripts without checking them.
Definition at line 130 of file validation.cpp.
|
static |
Maximum number of dedicated script-checking threads allowed.
Definition at line 66 of file validation.h.
|
static |
Block files containing a block-height within MIN_BLOCKS_TO_KEEP of ActiveChain().Tip() will not be pruned.
Definition at line 79 of file validation.h.
|
static |
Definition at line 90 of file validation.h.
|
extern |
A fee rate smaller than this is considered zero fee (for relaying, mining and transaction creation)
Definition at line 133 of file validation.cpp.
|
extern |
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.
|
extern |
Minimum work we will assume exists on some valid chain.
Definition at line 131 of file validation.cpp.
|
extern |
Best header we've seen so far (used for getheaders queries' starting points).
Definition at line 120 of file validation.cpp.