Struct mz_adapter::session::WriteLocksBuilder

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pub struct WriteLocksBuilder {
    locks: BTreeMap<CatalogItemId, Option<OwnedMutexGuard<()>>>,
}
Expand description

A builder struct that helps us acquire all of the locks we need, or none of them.

See WriteLocks::builder.

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§locks: BTreeMap<CatalogItemId, Option<OwnedMutexGuard<()>>>

Implementations§

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impl WriteLocksBuilder

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pub fn insert_lock(&mut self, id: CatalogItemId, lock: OwnedMutexGuard<()>)

Adds a lock to this builder.

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pub fn all_or_nothing( self, conn_id: &ConnectionId, ) -> Result<WriteLocks, CatalogItemId>

Finish this builder by returning either all of the necessary locks, or none of them.

If we fail to acquire all of the locks, returns one of the CatalogItemIds that we failed to acquire a lock for, that should be awaited so we know when to run again.

Trait Implementations§

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impl Debug for WriteLocksBuilder

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

Formats the value using the given formatter. Read more

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