[−][src]Enum pagecache::CacheEntry
Points to either a memory location or a disk location to page-in data from.
Variants
MergedResident(M, u64, Lsn, DiskPtr)
A cache item that contains the most recent fully-merged page state, also in secondary storage.
Resident(M, u64, Lsn, DiskPtr)
A cache item that is in memory, and also in secondary storage.
PartialFlush(u64, Lsn, DiskPtr)
A cache item that is present in secondary storage.
Flush(u64, Lsn, DiskPtr)
A cache item that is present in secondary storage, and is the base segment of a page.
Free(u64, Lsn, DiskPtr)
A freed page tombstone.
Counter(usize, u64, Lsn, DiskPtr)
The persisted counter page
Meta(Meta, u64, Lsn, DiskPtr)
The persisted meta page
Trait Implementations
impl<M: PartialEq + Send> PartialEq<CacheEntry<M>> for CacheEntry<M>
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fn eq(&self, other: &CacheEntry<M>) -> bool
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fn ne(&self, other: &CacheEntry<M>) -> bool
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impl<M: Clone + Send> Clone for CacheEntry<M>
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fn clone(&self) -> CacheEntry<M>
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
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impl<M: Debug + Send> Debug for CacheEntry<M>
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Auto Trait Implementations
impl<M> Send for CacheEntry<M>
impl<M> Sync for CacheEntry<M> where
M: Sync,
M: Sync,
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,