IndexReadGuard

Struct IndexReadGuard 

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pub struct IndexReadGuard<'a, K> { /* private fields */ }
Expand description

A read-only view of the index state. Holds a shared read lock for the duration of the guard. Supports lookup, iteration, and range queries in key order.

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impl<'a, K> IndexReadGuard<'a, K>

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pub fn stats(&self) -> DbStats

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pub fn len(&self) -> usize

Returns the number of keys in the index.

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pub fn is_empty(&self) -> bool

Returns true if the index contains no keys.

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pub fn known_blobs(&self) -> Iter<'_, BlobHash, u32>

Returns an iterator over known blob hashes and their reference counts.

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pub fn contains_blob_hash(&self, hash: &BlobHash) -> bool

Returns true if the given blob hash is currently referenced.

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pub fn range<T, R>(&self, range: R) -> Range<'_, K, IndexStateItem>
where T: ?Sized + Ord, K: Borrow<T> + Ord, R: RangeBounds<T>,

Returns an iterator over entries within the specified key range, in ascending order. The range may use a borrowed form of the key (e.g., &str for String).

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impl<'a, K> IndexReadGuard<'a, K>
where K: Ord,

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pub fn get_item(&self, key: &K) -> Option<IndexStateItem>

Returns the item for the given key, if it exists.

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pub fn contains_key(&self, key: &K) -> bool

Returns true if the index contains the specified key.

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pub fn iter(&self) -> Iter<'_, K, IndexStateItem>

Returns an iterator over all entries in ascending key order.

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impl<'a, K> IndexReadGuard<'a, K>
where K: Debug + Ord,

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pub fn require_item(&self, key: &K) -> Result<IndexStateItem, IndexError>

Returns the item for the given key, or an error if it is not present.

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impl<'a, K> IndexReadGuard<'a, K>
where K: Clone,

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pub fn keys_snapshot(&self) -> BTreeMap<K, IndexStateItem>

Returns a snapshot of the current key map. Calls clone inside.

Auto Trait Implementations§

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impl<'a, K> Freeze for IndexReadGuard<'a, K>

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impl<'a, K> !RefUnwindSafe for IndexReadGuard<'a, K>

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impl<'a, K> !Send for IndexReadGuard<'a, K>

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impl<'a, K> Sync for IndexReadGuard<'a, K>
where K: Sync,

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impl<'a, K> Unpin for IndexReadGuard<'a, K>

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impl<'a, K> !UnwindSafe for IndexReadGuard<'a, K>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more