Struct solana_runtime::snapshot_minimizer::SnapshotMinimizer

pub struct SnapshotMinimizer<'a> {
    bank: &'a Bank,
    starting_slot: Slot,
    ending_slot: Slot,
    minimized_account_set: DashSet<Pubkey>,
}

Used to modify bank and accounts_db to create a minimized snapshot

Fields

bank: &'a Bank

starting_slot: Slot

ending_slot: Slot

minimized_account_set: DashSet<Pubkey>

Implementations

impl<'a> SnapshotMinimizer<'a>

pub fn minimize( bank: &'a Bank, starting_slot: Slot, ending_slot: Slot, transaction_account_set: DashSet<Pubkey> )

Removes all accounts not necessary for replaying slots in the range [starting_slot, ending_slot]. transaction_account_set should contain accounts used in transactions in the slot range [starting_slot, ending_slot]. This function will accumulate other accounts (rent colleciton, builtins, etc) necessary to replay transactions.

This function will modify accounts_db by removing accounts not needed to replay [starting_slot, ending_slot], and update the bank’s capitalization.

fn add_accounts<F>(&self, add_accounts_fn: F, name: &'static str)where F: Fn(&SnapshotMinimizer<'a>),

Helper function to measure time and number of accounts added

fn get_active_bank_features(&self)

Used to get active bank feature accounts in minimize.

fn get_inactive_bank_features(&self)

Used to get inactive bank feature accounts in minimize

fn get_builtins(&self)

Used to get builtin accounts in minimize

fn get_static_runtime_accounts(&self)

Used to get static runtime accounts in minimize

fn get_sdk_accounts(&self)

Used to get sdk accounts in minimize

fn get_rent_collection_accounts(&self)

Used to get rent collection accounts in minimize Add all pubkeys we would collect rent from or rewrite to minimized_account_set. related to Bank::rent_collection_partitions

fn get_vote_accounts(&self)

Used to get vote and node pubkeys in minimize Add all pubkeys from vote accounts and nodes to minimized_account_set

fn get_stake_accounts(&self)

Used to get stake accounts in minimize Add all pubkeys from stake accounts to minimized_account_set

fn get_owner_accounts(&self)

Used to get owner accounts in minimize For each account in minimized_account_set adds the owner account’s pubkey to minimized_account_set.

fn get_programdata_accounts(&self)

Used to get program data accounts in minimize For each upgradable bpf program, adds the programdata account pubkey to minimized_account_set

fn minimize_accounts_db(&self)

Remove accounts not in minimized_accoun_set from accounts_db

fn get_minimized_slot_set(&self) -> DashSet<Slot>

Determines minimum set of slots that accounts in minimized_account_set are in

fn process_snapshot_storages( &self, minimized_slot_set: DashSet<Slot> ) -> (Vec<Slot>, Vec<Arc<AccountStorageEntry>>)

Process all snapshot storages to during minimize

fn filter_storage( &self, storage: &Arc<AccountStorageEntry>, dead_storages: &Mutex<Vec<Arc<AccountStorageEntry>>> )

Creates new storage replacing storages that contains only accounts in minimized_account_set.

fn purge_dead_slots(&self, dead_slots: Vec<Slot>)

Purge dead slots from storage and cache

fn accounts_db(&self) -> &AccountsDb

Convenience function for getting accounts_db