Struct WalDurabilityTicket 

pub struct WalDurabilityTicket { /* private fields */ }

A claim on WAL durability handed out by a deferred Full-mode flush: the commit’s records have reached the OS file but are not yet guaranteed on stable storage. Self::wait blocks until an fsync covering them has completed — the caller must not acknowledge the commit before wait returns Ok(()).

Tickets are cumulative: generations are registered in order, so waiting on a later ticket also makes every earlier generation durable. Waiting takes no Wal lock, which is what lets a committer release the engine’s write lock first and other committers append while the fsync runs — the overlap that lets one fsync cover many commits.

Implementations

impl WalDurabilityTicket

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

Block until an fsync covering this ticket’s WAL records has completed. See [WalSyncShared::sync_until] for the leader/follower scheme.

Trait Implementations

impl Debug for WalDurabilityTicket

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

Formats the value using the given formatter.