Enum TieredStorageReader

pub enum TieredStorageReader {
    Hot(HotStorageReader),
}

The reader of a tiered storage instance.

Variants

Hot(HotStorageReader)

Implementations

impl TieredStorageReader

pub fn new_from_path(path: impl AsRef<Path>) -> TieredStorageResult<Self>

Creates a reader for the specified tiered storage accounts file.

pub fn len(&self) -> usize

Returns the size of the underlying storage.

pub fn is_empty(&self) -> bool

Returns whether the nderlying storage is empty.

pub fn capacity(&self) -> u64

pub fn footer(&self) -> &TieredStorageFooter

Returns the footer of the associated HotAccountsFile.

pub fn num_accounts(&self) -> usize

Returns the total number of accounts.

pub fn get_account_shared_data( &self, index_offset: IndexOffset, ) -> TieredStorageResult<Option<AccountSharedData>>

Returns the account located at the specified index offset.

pub fn get_stored_account_meta_callback<Ret>( &self, index_offset: IndexOffset, callback: impl for<'local> FnMut(StoredAccountMeta<'local>) -> Ret, ) -> TieredStorageResult<Option<Ret>>

calls callback with the account located at the specified index offset.

pub fn account_matches_owners( &self, index_offset: IndexOffset, owners: &[Pubkey], ) -> Result<usize, MatchAccountOwnerError>

Returns Ok(index_of_matching_owner) if the account owner at account_offset is one of the pubkeys in owners.

Returns Err(MatchAccountOwnerError::NoMatch) if the account has 0 lamports or the owner is not one of the pubkeys in owners.

Returns Err(MatchAccountOwnerError::UnableToLoad) if there is any internal error that causes the data unable to load, including account_offset causes a data overrun.

pub fn scan_pubkeys( &self, callback: impl FnMut(&Pubkey), ) -> TieredStorageResult<()>

iterate over all pubkeys

pub fn data_for_archive(&self) -> &[u8]

Returns a slice suitable for use when archiving tiered storages

Trait Implementations

impl Debug for TieredStorageReader

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

Formats the value using the given formatter.