Class Ledger

Constructors

Name	Description
this (params, database, storage, validator_set)	Constructor

Fields

Name	Type	Description
params	immutable(ConsensusParams)	Consensus-critical constants used by this Ledger
cached_coinbase	Ledger.CachedCoinbase	Cache for Coinbase tx to be used during payout height
engine	Engine	Script execution engine
fee_man	FeeManager	The checker of transaction data payload
last_block	Block	The last block in the ledger
log	Logger	Logger instance
rewards	Reward	Block rewards calculator
stateDB	ManagedDatabase	The database in which the Ledger state is stored
storage	IBlockStorage	data storage for all the blocks
utxo_set	UTXOCache	UTXO set
validator_set	ValidatorSet	The object controlling the validator set

Methods

Name	Description
acceptBlock (block)	Attempt to add a block to the Ledger.
addPreimage (preimage)	Add a pre-image information to the validator data
buildBlock (txs, enrollments, missing_validators)	Create a new block based on the current previous block.
expectedHeight (utcTime)	Get the Height this Ledger should be at if fully synchronized
getBlocks (rng)	Get a range of blocks, starting from the provided block height.
getBlocksFrom (start)	Get a range of blocks from start to Ledger.height
getEnrolledUTXOs (height)
getExpectedBlockTime (height)	Gets the expected block nomination time offset from Genesis start time.
getLastPaidHeight ()	return the last paid out block before the current block
getPenaltyDeposit (utxo)
getUTXOFinder ()	Prepare tracking double-spent transactions and return the UTXOFinder delegate
getValidators (height, empty)	Expose the list of validators at a given height
hasMajoritySignature (header)
height ()	Returns the height at which this Ledger is currently at
isCoinbaseBlock (height)	Check if this is the height for payouts of a payout period
isRelatedRewardBlock (reward_height, coinbase_height)	Check if block is related to given payout block
isStake (hash, utxo)
lastBlock ()	Returns a reference to the last block in the Ledger
peekUTXO (utxo, value)	Get an UTXO, no double-spend protection.
updateBlockMultiSig (header)	Update the Schnorr multi-signature for an externalized block in the Ledger.
utxos ()	Expose an object that interacts with the UTXO set
validateBlock (block)	Check whether the block is valid.
validateBlockSignature (header)	Validate the signature of a block
validatorCount (height)	Get the count of active validators at a given height.
addValidatedBlock (block)	Add a validated block to the Ledger.
applySlashing (header)	Apply slashing to the current state
getCoinbaseTX (height)	Create the Coinbase transaction for this payout block and append it to the transaction set
handleNotSignedByMajority (header, validators)	Used to handle behaviour when less than half the validators have signed the block. This is overridden in the ValidatingLedger
replayStoredBlock (block)	Update the ledger state from a block which was read from storage
updateUTXOSet (block)	Update the UTXO set based on the block's transactions
updateValidatorSet (block)	Update the active validator set

Inner structs

Name	Description
CachedCoinbase	Cache for Coinbase tx to be used during payout height