Struct solana_runtime::accounts_db::CurrentAncientAppendVec

struct CurrentAncientAppendVec {
    slot_and_append_vec: Option<(Slot, Arc<AccountStorageEntry>)>,
}

while combining into ancient append vecs, we need to keep track of the current one that is receiving new data The pattern for callers is:

1. this is a mut local
2. do some version of create/new
3. use it (slot, append_vec, etc.)
4. re-create it sometimes
5. goto 3 If a caller uses it before initializing it, it will be a runtime unwrap() error, similar to an assert. That condition is an illegal use pattern and is justifiably an assertable condition.

Fields

slot_and_append_vec: Option<(Slot, Arc<AccountStorageEntry>)>

Implementations

impl CurrentAncientAppendVec

fn new( slot: Slot, append_vec: Arc<AccountStorageEntry> ) -> CurrentAncientAppendVec

fn create_ancient_append_vec<'a>( &mut self, slot: Slot, db: &'a AccountsDb ) -> ShrinkInProgress<'a>

fn create_if_necessary<'a>( &mut self, slot: Slot, db: &'a AccountsDb ) -> Option<ShrinkInProgress<'a>>

fn slot(&self) -> Slot

note this requires that ‘slot_and_append_vec’ is Some

fn append_vec(&self) -> &Arc<AccountStorageEntry>

note this requires that ‘slot_and_append_vec’ is Some

fn store_ancient_accounts( &self, db: &AccountsDb, accounts_to_store: &AccountsToStore<'_>, storage_selector: StorageSelector ) -> StoreAccountsTiming

helper function to cleanup call to ‘store_accounts_frozen’

Trait Implementations

impl Default for CurrentAncientAppendVec

fn default() -> CurrentAncientAppendVec

Returns the “default value” for a type.