Struct ReplayWindow 

pub struct ReplayWindow {
    pub epoch: JournalEpoch,
    pub earliest: u64,
    pub next: u64,
    pub gap_after: Option<u64>,
}

The offsets a view can currently serve.

earliest is the oldest retained offset, so a cursor below it has fallen out of the window and cannot be honoured. next is the offset the next append will take, so a consumer at next - 1 is fully caught up.

Fields

epoch: JournalEpoch

earliest: u64

next: u64

gap_after: Option<u64>

When set, records after this offset were lost before the tape resumed: the stream restarted live rather than from the snapshot’s watermark. Replay across this boundary is refused rather than presented as continuous.

Implementations

impl ReplayWindow

pub fn is_empty(&self) -> bool

pub fn latest_cursor(&self) -> Option<Cursor>

The cursor a caught-up consumer would hold.

Trait Implementations

impl Clone for ReplayWindow

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReplayWindow

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ReplayWindow

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ReplayWindow

impl PartialEq for ReplayWindow

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ReplayWindow

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ReplayWindow