Struct nebari::transaction::State

pub struct State { /* private fields */ }

The transaction log state.

Implementations

impl State

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

Creates a new uninitialized state for a transaction log located at path.

pub fn current_transaction_id(&self) -> Option<TransactionId>

Returns the last successfully written transaction id, or None if no transactions have been recorded yet.

pub fn next_transaction_id(&self) -> TransactionId

Returns the next transaction id that will be used.

pub fn path(&self) -> &Path

Returns the path to the file.

pub fn len(&self) -> u64

Returns the current length of the log.

pub fn is_empty(&self) -> bool

Returns if the log is empty.

pub fn new_transaction<'a, I: IntoIterator<Item = &'a [u8], IntoIter = II>, II: ExactSizeIterator<Item = &'a [u8]>>(
    &self,
    trees: I
) -> TransactionHandle

Creates a new transaction, exclusively locking trees. Will block the thread until the trees can be locked.

Trait Implementations

impl Clone for State

fn clone(&self) -> State

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for State

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

Formats the value using the given formatter.