Struct solana_runtime::bank::Bank

pub struct Bank {

    pub rc: BankRc,
    pub status_cache: Arc<RwLock<BankStatusCache>>,
    pub ancestors: Ancestors,
    pub ns_per_slot: u128,
    pub rewards: RwLock<Vec<(Pubkey, RewardInfo)>>,
    pub cluster_type: Option<ClusterType>,
    pub lazy_rent_collection: AtomicBool,
    pub rewards_pool_pubkeys: Arc<HashSet<Pubkey>>,
    pub transaction_log_collector_config: Arc<RwLock<TransactionLogCollectorConfig>>,
    pub transaction_log_collector: Arc<RwLock<TransactionLogCollector>>,
    pub feature_set: Arc<FeatureSet>,
    pub drop_callback: RwLock<OptionalDropCallback>,
    pub freeze_started: AtomicBool,
    pub rewrites_skipped_this_slot: Rewrites,
    pub fee_structure: FeeStructure,
    pub incremental_snapshot_persistence: Option<BankIncrementalSnapshotPersistence>,
    /* private fields */
}

Manager for the state of all accounts and programs after processing its entries. AbiExample is needed even without Serialize/Deserialize; actual (de-)serialization are implemented elsewhere for versioning

Fields

rc: BankRc

References to accounts, parent and signature status

status_cache: Arc<RwLock<BankStatusCache>>

A cache of signature statuses

ancestors: Ancestors

The set of parents including this bank

ns_per_slot: u128

length of a slot in ns

rewards: RwLock<Vec<(Pubkey, RewardInfo)>>

Protocol-level rewards that were distributed by this bank

cluster_type: Option<ClusterType>

lazy_rent_collection: AtomicBool

rewards_pool_pubkeys: Arc<HashSet<Pubkey>>

transaction_log_collector_config: Arc<RwLock<TransactionLogCollectorConfig>>

transaction_log_collector: Arc<RwLock<TransactionLogCollector>>

feature_set: Arc<FeatureSet>

drop_callback: RwLock<OptionalDropCallback>

callback function only to be called when dropping and should only be called once

freeze_started: AtomicBool

rewrites_skipped_this_slot: Rewrites

(Pubkey, account Hash) for each account that would have been rewritten in rent collection for this slot

fee_structure: FeeStructure

Transaction fee structure

incremental_snapshot_persistence: Option<BankIncrementalSnapshotPersistence>

Implementations

impl Bank

pub fn get_sysvar_cache_for_tests(&self) -> SysvarCache

impl Bank

pub fn default_for_tests() -> Self

pub fn new_for_benches(genesis_config: &GenesisConfig) -> Self

pub fn new_for_tests(genesis_config: &GenesisConfig) -> Self

pub fn new_no_wallclock_throttle_for_tests( genesis_config: &GenesisConfig ) -> Self

pub fn new_with_paths_for_tests( genesis_config: &GenesisConfig, paths: Vec<PathBuf>, debug_keys: Option<Arc<HashSet<Pubkey>>>, additional_builtins: Option<&Builtins>, account_indexes: AccountSecondaryIndexes, accounts_db_caching_enabled: bool, shrink_ratio: AccountShrinkThreshold, debug_do_not_add_builtins: bool, accounts_db_config: Option<AccountsDbConfig> ) -> Self

pub fn new_with_paths_for_benches( genesis_config: &GenesisConfig, paths: Vec<PathBuf>, debug_keys: Option<Arc<HashSet<Pubkey>>>, additional_builtins: Option<&Builtins>, account_indexes: AccountSecondaryIndexes, accounts_db_caching_enabled: bool, shrink_ratio: AccountShrinkThreshold, debug_do_not_add_builtins: bool ) -> Self

pub fn new_with_paths( genesis_config: &GenesisConfig, paths: Vec<PathBuf>, debug_keys: Option<Arc<HashSet<Pubkey>>>, additional_builtins: Option<&Builtins>, account_indexes: AccountSecondaryIndexes, accounts_db_caching_enabled: bool, shrink_ratio: AccountShrinkThreshold, debug_do_not_add_builtins: bool, accounts_db_config: Option<AccountsDbConfig>, accounts_update_notifier: Option<AccountsUpdateNotifier> ) -> Self

pub fn new_from_parent( parent: &Arc<Bank>, collector_id: &Pubkey, slot: Slot ) -> Self

Create a new bank that points to an immutable checkpoint of another bank.

pub fn new_from_parent_with_options( parent: &Arc<Bank>, collector_id: &Pubkey, slot: Slot, new_bank_options: NewBankOptions ) -> Self

pub fn new_from_parent_with_tracer( parent: &Arc<Bank>, collector_id: &Pubkey, slot: Slot, reward_calc_tracer: impl Fn(&RewardCalculationEvent<'_, '_>) + Send + Sync ) -> Self

pub fn byte_limit_for_scans(&self) -> Option<usize>

pub fn proper_ancestors_set(&self) -> HashSet<Slot>

pub fn set_callback(&self, callback: Option<Box<dyn DropCallback + Send + Sync>>)

pub fn vote_only_bank(&self) -> bool

pub fn warp_from_parent( parent: &Arc<Bank>, collector_id: &Pubkey, slot: Slot ) -> Self

Like new_from_parent but additionally:

• Doesn’t assume that the parent is anywhere near slot, parent could be millions of slots in the past
• Adjusts the new bank’s tick height to avoid having to run PoH for millions of slots
• Freezes the new bank, assuming that the user will Bank::new_from_parent from this bank

pub fn collector_id(&self) -> &Pubkey

pub fn genesis_creation_time(&self) -> UnixTimestamp

pub fn slot(&self) -> Slot

pub fn bank_id(&self) -> BankId

pub fn epoch(&self) -> Epoch

pub fn first_normal_epoch(&self) -> Epoch

pub fn freeze_lock(&self) -> RwLockReadGuard<'_, Hash>

pub fn hash(&self) -> Hash

pub fn is_frozen(&self) -> bool

pub fn freeze_started(&self) -> bool

pub fn status_cache_ancestors(&self) -> Vec<u64>

pub fn unix_timestamp_from_genesis(&self) -> i64

computed unix_timestamp at this slot height

pub fn clock(&self) -> Clock

pub fn set_sysvar_for_tests<T>(&self, sysvar: &T)where T: Sysvar + SysvarId,

pub fn get_slot_history(&self) -> SlotHistory

pub fn epoch_duration_in_years(&self, prev_epoch: Epoch) -> f64

pub fn slot_in_year_for_inflation(&self) -> f64

pub fn update_recent_blockhashes(&self)

pub fn rehash(&self)

pub fn freeze(&self)

pub fn unfreeze_for_ledger_tool(&self)

pub fn epoch_schedule(&self) -> &EpochSchedule

pub fn squash(&self) -> SquashTiming

squash the parent’s state up into this Bank, this Bank becomes a root

pub fn parent(&self) -> Option<Arc<Bank>>

Return the more recent checkpoint of this bank instance.

pub fn parent_slot(&self) -> Slot

pub fn parent_hash(&self) -> Hash

pub fn add_builtin_account( &self, name: &str, program_id: &Pubkey, must_replace: bool )

Add a builtin program account

pub fn add_precompiled_account(&self, program_id: &Pubkey)

Add a precompiled program account

pub fn set_rent_burn_percentage(&mut self, burn_percent: u8)

pub fn set_hashes_per_tick(&mut self, hashes_per_tick: Option<u64>)

pub fn last_blockhash(&self) -> Hash

Return the last block hash registered.

pub fn last_blockhash_and_lamports_per_signature(&self) -> (Hash, u64)

pub fn is_blockhash_valid(&self, hash: &Hash) -> bool

pub fn get_minimum_balance_for_rent_exemption(&self, data_len: usize) -> u64

pub fn get_lamports_per_signature(&self) -> u64

pub fn get_lamports_per_signature_for_blockhash( &self, hash: &Hash ) -> Option<u64>

pub fn get_fee_rate_governor(&self) -> &FeeRateGovernor

👎Deprecated since 1.9.0: Please use get_fee_for_message instead

pub fn get_fee_for_message(&self, message: &SanitizedMessage) -> Option<u64>

pub fn get_startup_verification_complete(&self) -> &Arc<AtomicBool>

pub fn is_startup_verification_complete(&self) -> bool

pub fn set_startup_verification_complete(&self)

This can occur because it completed in the background or if the verification was run in the foreground.

pub fn get_fee_for_message_with_lamports_per_signature( &self, message: &SanitizedMessage, lamports_per_signature: u64 ) -> u64

pub fn get_blockhash_last_valid_slot(&self, blockhash: &Hash) -> Option<Slot>

👎Deprecated since 1.6.11: Please use get_blockhash_last_valid_block_height

pub fn get_blockhash_last_valid_block_height( &self, blockhash: &Hash ) -> Option<Slot>

pub fn confirmed_last_blockhash(&self) -> Hash

pub fn clear_signatures(&self)

Forget all signatures. Useful for benchmarking.

pub fn clear_slot_signatures(&self, slot: Slot)

pub fn register_recent_blockhash(&self, blockhash: &Hash)

Register a new recent blockhash in the bank’s recent blockhash queue. Called when a bank reaches its max tick height. Can be called by tests to get new blockhashes for transaction processing without advancing to a new bank slot.

pub fn register_tick(&self, hash: &Hash)

Tell the bank which Entry IDs exist on the ledger. This function assumes subsequent calls correspond to later entries, and will boot the oldest ones once its internal cache is full. Once boot, the bank will reject transactions using that hash.

This is NOT thread safe because if tick height is updated by two different threads, the block boundary condition could be missed.

pub fn is_complete(&self) -> bool

pub fn is_block_boundary(&self, tick_height: u64) -> bool

pub fn get_transaction_account_lock_limit(&self) -> usize

Get the max number of accounts that a transaction may lock in this block

pub fn prepare_batch_for_tests( &self, txs: Vec<Transaction> ) -> TransactionBatch<'_, '_>

Prepare a transaction batch from a list of legacy transactions. Used for tests only.

pub fn prepare_entry_batch( &self, txs: Vec<VersionedTransaction> ) -> Result<TransactionBatch<'_, '_>>

Prepare a transaction batch from a list of versioned transactions from an entry. Used for tests only.

pub fn prepare_sanitized_batch<'a, 'b>( &'a self, txs: &'b [SanitizedTransaction] ) -> TransactionBatch<'a, 'b>

Prepare a locked transaction batch from a list of sanitized transactions.

pub fn prepare_sanitized_batch_with_results<'a, 'b>( &'a self, transactions: &'b [SanitizedTransaction], transaction_results: impl Iterator<Item = &'b Result<()>> ) -> TransactionBatch<'a, 'b>

Prepare a locked transaction batch from a list of sanitized transactions, and their cost limited packing status

pub fn simulate_transaction( &self, transaction: SanitizedTransaction ) -> TransactionSimulationResult

Run transactions against a frozen bank without committing the results

pub fn simulate_transaction_unchecked( &self, transaction: SanitizedTransaction ) -> TransactionSimulationResult

Run transactions against a bank without committing the results; does not check if the bank is frozen, enabling use in single-Bank test frameworks

pub fn unlock_accounts(&self, batch: &mut TransactionBatch<'_, '_>)

pub fn remove_unrooted_slots(&self, slots: &[(Slot, BankId)])

pub fn set_shrink_paths(&self, paths: Vec<PathBuf>)

pub fn get_hash_age(&self, hash: &Hash) -> Option<u64>

pub fn is_hash_valid_for_age(&self, hash: &Hash, max_age: usize) -> bool

pub fn check_transactions( &self, sanitized_txs: &[SanitizedTransaction], lock_results: &[Result<()>], max_age: usize, error_counters: &mut TransactionErrorMetrics ) -> Vec<TransactionCheckResult>

pub fn collect_balances( &self, batch: &TransactionBatch<'_, '_> ) -> TransactionBalances

pub fn clear_executors(&self)

pub fn load_and_execute_transactions( &self, batch: &TransactionBatch<'_, '_>, max_age: usize, enable_cpi_recording: bool, enable_log_recording: bool, enable_return_data_recording: bool, timings: &mut ExecuteTimings, account_overrides: Option<&AccountOverrides>, log_messages_bytes_limit: Option<usize> ) -> LoadAndExecuteTransactionsOutput

pub fn accounts_data_size_limit(&self) -> u64

The maximum allowed size, in bytes, of the accounts data

pub fn load_accounts_data_size(&self) -> u64

Load the accounts data size, in bytes

pub fn load_accounts_data_size_delta(&self) -> i64

Load the change in accounts data size in this Bank, in bytes

pub fn load_accounts_data_size_delta_on_chain(&self) -> i64

Load the change in accounts data size in this Bank, in bytes, from on-chain events i.e. transactions

pub fn load_accounts_data_size_delta_off_chain(&self) -> i64

Load the change in accounts data size in this Bank, in bytes, from off-chain events i.e. rent collection

pub fn set_accounts_data_size_initial_for_tests(&mut self, amount: u64)

Set the initial accounts data size NOTE: This fn is ONLY FOR TESTS

pub fn update_accounts_data_size_delta_off_chain_for_tests(&self, amount: i64)

Update the accounts data size off-chain delta NOTE: This fn is ONLY FOR TESTS

pub fn calculate_fee( message: &SanitizedMessage, lamports_per_signature: u64, fee_structure: &FeeStructure, support_set_compute_unit_price_ix: bool, use_default_units_per_instruction: bool, enable_request_heap_frame_ix: bool ) -> u64

Calculate fee for SanitizedMessage

pub fn commit_transactions( &self, sanitized_txs: &[SanitizedTransaction], loaded_txs: &mut [TransactionLoadResult], execution_results: Vec<TransactionExecutionResult>, last_blockhash: Hash, lamports_per_signature: u64, counts: CommitTransactionCounts, timings: &mut ExecuteTimings ) -> TransactionResults

committed_transactions_count is the number of transactions out of sanitized_txs that was executed. Of those, committed_transactions_count, committed_with_failure_result_count is the number of executed transactions that returned a failure result.

pub fn prepare_rewrites_for_hash(&self)

after deserialize, populate rewrites with accounts that would normally have had their data rewritten in this slot due to rent collection (but didn’t)

pub fn partition_from_pubkey( pubkey: &Pubkey, partition_count: PartitionsPerCycle ) -> u64

This is the inverse of pubkey_range_from_partition. return the lowest end_index which would contain this pubkey

pub fn pubkey_range_from_partition( (start_index, end_index, partition_count): (u64, u64, PartitionsPerCycle) ) -> RangeInclusive<Pubkey>

pub fn get_partitions( slot: Slot, parent_slot: Slot, slot_count_in_two_day: SlotCount ) -> Vec<(u64, u64, PartitionsPerCycle)>

pub fn variable_cycle_partition_from_previous_slot( epoch_schedule: &EpochSchedule, slot: Slot ) -> (u64, u64, PartitionsPerCycle)

used only by filler accounts in debug path previous means slot - 1, not parent

pub fn slot_count_in_two_day_helper(ticks_per_slot: SlotCount) -> SlotCount

pub fn cluster_type(&self) -> ClusterType

pub fn load_execute_and_commit_transactions( &self, batch: &TransactionBatch<'_, '_>, max_age: usize, collect_balances: bool, enable_cpi_recording: bool, enable_log_recording: bool, enable_return_data_recording: bool, timings: &mut ExecuteTimings, log_messages_bytes_limit: Option<usize> ) -> (TransactionResults, TransactionBalancesSet)

Process a batch of transactions.

pub fn process_transaction(&self, tx: &Transaction) -> Result<()>

Process a Transaction. This is used for unit tests and simply calls the vector Bank::process_transactions method.

pub fn process_transaction_with_logs(&self, tx: &Transaction) -> Result<()>

Process a Transaction and store program log data. This is used for unit tests, and simply replicates the vector Bank::process_transactions method with enable_cpi_recording: true

pub fn process_transactions<'a>( &self, txs: impl Iterator<Item = &'a Transaction> ) -> Vec<Result<()>>

Process multiple transaction in a single batch. This is used for benches and unit tests.

Panics

Panics if any of the transactions do not pass sanitization checks.

pub fn try_process_transactions<'a>( &self, txs: impl Iterator<Item = &'a Transaction> ) -> Result<Vec<Result<()>>>

Process multiple transaction in a single batch. This is used for benches and unit tests. Short circuits if any of the transactions do not pass sanitization checks.

pub fn process_entry_transactions( &self, txs: Vec<VersionedTransaction> ) -> Vec<Result<()>>

Process entry transactions in a single batch. This is used for benches and unit tests.

Panics

Panics if any of the transactions do not pass sanitization checks.

pub fn try_process_entry_transactions( &self, txs: Vec<VersionedTransaction> ) -> Result<Vec<Result<()>>>

Process multiple transaction in a single batch. This is used for benches and unit tests. Short circuits if any of the transactions do not pass sanitization checks.

pub fn transfer(&self, n: u64, keypair: &Keypair, to: &Pubkey) -> Result<Signature>

Create, sign, and process a Transaction from keypair to to of n lamports where blockhash is the last Entry ID observed by the client.

pub fn read_balance(account: &AccountSharedData) -> u64

pub fn get_balance(&self, pubkey: &Pubkey) -> u64

Each program would need to be able to introspect its own state this is hard-coded to the Budget language

pub fn parents(&self) -> Vec<Arc<Bank>>

Compute all the parents of the bank in order

pub fn parents_inclusive(self: Arc<Self>) -> Vec<Arc<Bank>>

Compute all the parents of the bank including this bank itself

pub fn store_account<T: ReadableAccount + Sync + ZeroLamport>( &self, pubkey: &Pubkey, account: &T )

pub fn store_accounts<'a, T: ReadableAccount + Sync + ZeroLamport>( &self, accounts: impl StorableAccounts<'a, T> )

pub fn force_flush_accounts_cache(&self)

pub fn flush_accounts_cache_if_needed(&self)

pub fn expire_old_recycle_stores(&self)

pub fn deposit( &self, pubkey: &Pubkey, lamports: u64 ) -> Result<u64, LamportsError>

pub fn accounts(&self) -> Arc<Accounts>

pub fn set_inflation(&self, inflation: Inflation)

pub fn set_compute_budget(&mut self, compute_budget: Option<ComputeBudget>)

pub fn hard_forks(&self) -> Arc<RwLock<HardForks>>

pub fn get_account(&self, pubkey: &Pubkey) -> Option<AccountSharedData>

pub fn get_account_with_fixed_root( &self, pubkey: &Pubkey ) -> Option<AccountSharedData>

pub fn get_account_modified_slot( &self, pubkey: &Pubkey ) -> Option<(AccountSharedData, Slot)>

pub fn get_program_accounts( &self, program_id: &Pubkey, config: &ScanConfig ) -> ScanResult<Vec<TransactionAccount>>

pub fn get_filtered_program_accounts<F: Fn(&AccountSharedData) -> bool>( &self, program_id: &Pubkey, filter: F, config: &ScanConfig ) -> ScanResult<Vec<TransactionAccount>>

pub fn get_filtered_indexed_accounts<F: Fn(&AccountSharedData) -> bool>( &self, index_key: &IndexKey, filter: F, config: &ScanConfig, byte_limit_for_scan: Option<usize> ) -> ScanResult<Vec<TransactionAccount>>

pub fn account_indexes_include_key(&self, key: &Pubkey) -> bool

pub fn get_all_accounts_with_modified_slots( &self ) -> ScanResult<Vec<PubkeyAccountSlot>>

pub fn get_program_accounts_modified_since_parent( &self, program_id: &Pubkey ) -> Vec<TransactionAccount>

pub fn get_transaction_logs( &self, address: Option<&Pubkey> ) -> Option<Vec<TransactionLogInfo>>

pub fn get_all_accounts_modified_since_parent(&self) -> Vec<TransactionAccount>

pub fn get_largest_accounts( &self, num: usize, filter_by_address: &HashSet<Pubkey>, filter: AccountAddressFilter ) -> ScanResult<Vec<(Pubkey, u64)>>

pub fn transaction_count(&self) -> u64

pub fn transaction_error_count(&self) -> u64

pub fn transaction_entries_count(&self) -> u64

pub fn transactions_per_entry_max(&self) -> u64

pub fn signature_count(&self) -> u64

pub fn get_signature_status_processed_since_parent( &self, signature: &Signature ) -> Option<Result<()>>

pub fn get_signature_status_with_blockhash( &self, signature: &Signature, blockhash: &Hash ) -> Option<Result<()>>

pub fn get_signature_status_slot( &self, signature: &Signature ) -> Option<(Slot, Result<()>)>

pub fn get_signature_status(&self, signature: &Signature) -> Option<Result<()>>

pub fn has_signature(&self, signature: &Signature) -> bool

pub fn verify_bank_hash(&self, config: VerifyBankHash) -> bool

Recalculate the hash_internal_state from the account stores. Would be used to verify a snapshot. return true if all is good Only called from startup or test code.

pub fn set_initial_accounts_hash_verification_completed(&self)

Specify that initial verification has completed. Called internally when verification runs in the foreground thread. Also has to be called by some tests which don’t do verification on startup.

pub fn has_initial_accounts_hash_verification_completed(&self) -> bool

return true if bg hash verification is complete return false if bg hash verification has not completed yet if hash verification failed, a panic will occur

pub fn get_snapshot_storages(&self, base_slot: Option<Slot>) -> SnapshotStorages

pub fn verify_transaction( &self, tx: VersionedTransaction, verification_mode: TransactionVerificationMode ) -> Result<SanitizedTransaction>

pub fn calculate_and_verify_capitalization(&self, debug_verify: bool) -> bool

only called at startup vs steady-state runtime

pub fn set_capitalization(&self) -> u64

Forcibly overwrites current capitalization by actually recalculating accounts’ balances. This should only be used for developing purposes.

pub fn get_accounts_hash(&self) -> Hash

pub fn get_thread_pool(&self) -> &ThreadPool

pub fn load_account_into_read_cache(&self, key: &Pubkey)

pub fn update_accounts_hash_with_index_option( &self, use_index: bool, debug_verify: bool, is_startup: bool ) -> Hash

pub fn update_accounts_hash(&self) -> Hash

pub fn verify_snapshot_bank( &self, test_hash_calculation: bool, accounts_db_skip_shrink: bool, last_full_snapshot_slot: Option<Slot> ) -> bool

A snapshot bank should be purged of 0 lamport accounts which are not part of the hash calculation and could shield other real accounts.

pub fn hashes_per_tick(&self) -> &Option<u64>

Return the number of hashes per tick

pub fn ticks_per_slot(&self) -> u64

Return the number of ticks per slot

pub fn slots_per_year(&self) -> f64

Return the number of slots per year

pub fn tick_height(&self) -> u64

Return the number of ticks since genesis.

pub fn inflation(&self) -> Inflation

Return the inflation parameters of the Bank

pub fn rent_collector(&self) -> &RentCollector

pub fn capitalization(&self) -> u64

Return the total capitalization of the Bank

pub fn max_tick_height(&self) -> u64

Return this bank’s max_tick_height

pub fn block_height(&self) -> u64

Return the block_height of this bank

pub fn get_slots_in_epoch(&self, epoch: Epoch) -> u64

Return the number of slots per epoch for the given epoch

pub fn get_leader_schedule_epoch(&self, slot: Slot) -> Epoch

returns the epoch for which this bank’s leader_schedule_slot_offset and slot would need to cache leader_schedule

pub fn staked_nodes(&self) -> Arc<HashMap<Pubkey, u64>>

pub fn vote_accounts(&self) -> Arc<VoteAccountsHashMap>

current vote accounts for this bank along with the stake attributed to each account

pub fn get_vote_account(&self, vote_account: &Pubkey) -> Option<VoteAccount>

Vote account for the given vote account pubkey.

pub fn epoch_stakes(&self, epoch: Epoch) -> Option<&EpochStakes>

Get the EpochStakes for a given epoch

pub fn epoch_stakes_map(&self) -> &HashMap<Epoch, EpochStakes>

pub fn epoch_staked_nodes( &self, epoch: Epoch ) -> Option<Arc<HashMap<Pubkey, u64>>>

pub fn epoch_vote_accounts(&self, epoch: Epoch) -> Option<&VoteAccountsHashMap>

vote accounts for the specific epoch along with the stake attributed to each account

pub fn epoch_authorized_voter(&self, vote_account: &Pubkey) -> Option<&Pubkey>

Get the fixed authorized voter for the given vote account for the current epoch

pub fn epoch_vote_accounts_for_node_id( &self, node_id: &Pubkey ) -> Option<&NodeVoteAccounts>

Get the fixed set of vote accounts for the given node id for the current epoch

pub fn total_epoch_stake(&self) -> u64

Get the fixed total stake of all vote accounts for current epoch

pub fn epoch_vote_account_stake(&self, vote_account: &Pubkey) -> u64

Get the fixed stake of the given vote account for the current epoch

pub fn get_epoch_and_slot_index(&self, slot: Slot) -> (Epoch, SlotIndex)

given a slot, return the epoch and offset into the epoch this slot falls e.g. with a fixed number for slots_per_epoch, the calculation is simply:

( slot/slots_per_epoch, slot % slots_per_epoch )

pub fn get_epoch_info(&self) -> EpochInfo

pub fn is_empty(&self) -> bool

pub fn add_builtin( &mut self, name: &str, program_id: &Pubkey, process_instruction: ProcessInstructionWithContext )

Add an instruction processor to intercept instructions before the dynamic loader.

pub fn remove_builtin(&mut self, program_id: &Pubkey)

Remove a builtin instruction processor if it already exists

pub fn add_precompile(&mut self, program_id: &Pubkey)

pub fn clean_accounts( &self, skip_last: bool, is_startup: bool, last_full_snapshot_slot: Option<Slot> )

pub fn shrink_all_slots( &self, is_startup: bool, last_full_snapshot_slot: Option<Slot> )

pub fn print_accounts_stats(&self)

pub fn process_stale_slot_with_budget( &self, consumed_budget: usize, budget_recovery_delta: usize ) -> usize

pub fn bank_tranaction_count_fix_enabled(&self) -> bool

pub fn shrink_candidate_slots(&self) -> usize

pub fn no_overflow_rent_distribution_enabled(&self) -> bool

pub fn versioned_tx_message_enabled(&self) -> bool

pub fn credits_auto_rewind(&self) -> bool

pub fn send_to_tpu_vote_port_enabled(&self) -> bool

pub fn concurrent_replay_of_forks(&self) -> bool

pub fn read_cost_tracker(&self) -> LockResult<RwLockReadGuard<'_, CostTracker>>

pub fn write_cost_tracker( &self ) -> LockResult<RwLockWriteGuard<'_, CostTracker>>

pub fn should_bank_still_be_processing_txs( bank_creation_time: &Instant, max_tx_ingestion_nanos: u128 ) -> bool

pub fn deactivate_feature(&mut self, id: &Pubkey)

pub fn activate_feature(&mut self, id: &Pubkey)

pub fn fill_bank_with_ticks_for_tests(&self)

pub fn get_total_accounts_stats(&self) -> ScanResult<TotalAccountsStats>

Get all the accounts for this bank and calculate stats

pub fn calculate_total_accounts_stats<'a>( &self, accounts: impl Iterator<Item = (&'a Pubkey, &'a AccountSharedData)> ) -> TotalAccountsStats

Given all the accounts for a bank, calculate stats

Trait Implementations

impl AbiExample for Bank

fn example() -> Self

impl AddressLoader for &Bank

fn load_addresses( self, address_table_lookups: &[MessageAddressTableLookup] ) -> Result<LoadedAddresses, AddressLoaderError>

impl Debug for Bank

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for Bank

fn drop(&mut self)

Executes the destructor for this type.

impl PartialEq<Bank> for Bank

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.