Struct BackupCursor 

pub struct BackupCursor {
    pub backed_up_epoch: EpochId,
    pub log_sequence: u64,
    pub timestamp_ms: u64,
}

Tracks the WAL position of the last completed backup.

Persisted as backup_cursor.meta in the WAL directory.

Fields

backed_up_epoch: EpochId

The epoch up to which WAL records have been backed up.

log_sequence: u64

The WAL log sequence number at the time of the last backup.

timestamp_ms: u64

Timestamp of the last backup.

Trait Implementations

impl Clone for BackupCursor

fn clone(&self) -> BackupCursor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BackupCursor

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BackupCursor

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for BackupCursor

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.