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Shared

Struct Shared 

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pub struct Shared<S> { /* private fields */ }
Expand description

A cloneable, shareable handle to a store.

Reader/Writer take &mut self, so sharing a store between owners requires a lock. Shared is that lock, packaged: it implements the store traits over Arc<Mutex<S>> so callers don’t hand-roll the wrapper. Lock poisoning is recovered from (the store may be mid-update, but path-level operations are individually atomic).

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impl<S> Shared<S>

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pub fn new(inner: S) -> Self

Wrap a store for shared access.

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pub fn lock(&self) -> MutexGuard<'_, S>

Access the underlying store directly.

Trait Implementations§

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impl<S> Clone for Shared<S>

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<S: Reader> Reader for Shared<S>

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fn read(&mut self, from: &Path) -> Result<Option<Record>, Error>

Read a record from a path. Read more
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fn read_children(&mut self, from: &Path) -> Result<Option<Vec<String>>, Error>

Enumerate the child names directly under a path. Read more
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impl<S: Writer> Writer for Shared<S>

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fn write(&mut self, to: &Path, data: Record) -> Result<Path, Error>

Write a record to a path. Read more

Auto Trait Implementations§

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impl<S> Freeze for Shared<S>
where Arc<Mutex<S>>: Freeze,

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impl<S> RefUnwindSafe for Shared<S>
where Arc<Mutex<S>>: RefUnwindSafe,

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impl<S> Send for Shared<S>
where Arc<Mutex<S>>: Send,

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impl<S> Sync for Shared<S>
where Arc<Mutex<S>>: Sync,

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impl<S> Unpin for Shared<S>
where Arc<Mutex<S>>: Unpin,

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impl<S> UnsafeUnpin for Shared<S>
where Arc<Mutex<S>>: UnsafeUnpin,

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impl<S> UnwindSafe for Shared<S>
where Arc<Mutex<S>>: UnwindSafe,

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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, 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> Store for T
where T: Reader + Writer,

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impl<T> Store for T
where T: Reader + Writer,

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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

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.