Struct mz_storage_client::controller::ExportState

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pub struct ExportState<T: TimelyTimestamp> {
    pub description: ExportDescription<T>,
    pub read_hold: ReadHold<T>,
    pub read_policy: ReadPolicy<T>,
    pub write_frontier: Antichain<T>,
    pub wallclock_lag_max: Duration,
}
Expand description

State maintained about individual exports.

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§description: ExportDescription<T>

Description with which the export was created

§read_hold: ReadHold<T>

The read hold that this export has on its dependencies (inputs). When the upper of the export changes, we downgrade this, which in turn downgrades holds we have on our dependencies’ sinces.

§read_policy: ReadPolicy<T>

The policy to use to downgrade self.read_capability.

§write_frontier: Antichain<T>

Reported write frontier.

§wallclock_lag_max: Duration

Maximum frontier wallclock lag since the last introspection update.

Implementations§

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impl<T: Timestamp> ExportState<T>

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pub fn new( description: ExportDescription<T>, read_hold: ReadHold<T>, read_policy: ReadPolicy<T>, ) -> Self

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pub fn cluster_id(&self) -> StorageInstanceId

Returns the cluster to which the export is bound.

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pub fn is_dropped(&self) -> bool

Returns whether the export was dropped.

Trait Implementations§

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impl<T: Debug + TimelyTimestamp> Debug for ExportState<T>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<T> Freeze for ExportState<T>
where T: Freeze,

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impl<T> !RefUnwindSafe for ExportState<T>

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impl<T> Send for ExportState<T>

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impl<T> Sync for ExportState<T>
where T: Sync,

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impl<T> Unpin for ExportState<T>
where T: Unpin,

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impl<T> !UnwindSafe for ExportState<T>

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where T: 'static + ?Sized,

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