Struct nebari::ExecutingTransaction

pub struct ExecutingTransaction<File: ManagedFile> { /* private fields */ }

An executing transaction. While this exists, no other transactions can execute across the same trees as this transaction holds.

Implementations

impl<File: ManagedFile> ExecutingTransaction<File>

pub fn entry(&self) -> &LogEntry<'static>

Returns the LogEntry for this transaction.

pub fn entry_mut(&mut self) -> &mut LogEntry<'static>

Returns a mutable reference to the LogEntry for this transaction.

pub fn commit(self) -> Result<(), Error>

Commits the transaction. Once this function has returned, all data updates are guaranteed to be able to be accessed by all other readers as well as impervious to sudden failures such as a power outage.

pub fn rollback(self)

Rolls the transaction back. It is not necessary to call this function – transactions will automatically be rolled back when the transaction is dropped, if commit() isn’t called first.

pub fn tree<Root: Root>(
    &self,
    index: usize
) -> Option<LockedTransactionTree<'_, Root, File>>

Accesses a locked tree.

pub fn unlocked_tree(
    &self,
    index: usize
) -> Option<&UnlockedTransactionTree<File>>

Accesses an unlocked tree. Note: If you clone an UnlockedTransactionTree, you must make sure to drop all instances before calling commit.

Trait Implementations

impl<File: ManagedFile> Drop for ExecutingTransaction<File>

fn drop(&mut self)

Executes the destructor for this type.