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WriteGuard

confex_core::handle

Struct WriteGuard 

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pub struct WriteGuard<T: ConfigSchema + Clone + Serialize> { /* private fields */ }
Expand description

Holds a mutable snapshot of T. On drop:

  1. If a file path is configured, serializes and writes to disk.
  2. Atomically swaps the new value into the live handle.

Disk errors are logged via tracing::error!; the in-memory swap always happens.

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impl<T: ConfigSchema + Clone + Serialize> Deref for WriteGuard<T>

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &T

Dereferences the value.
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impl<T: ConfigSchema + Clone + Serialize> DerefMut for WriteGuard<T>

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

Mutably dereferences the value.
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impl<T: ConfigSchema + Clone + Serialize> Drop for WriteGuard<T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more

Auto Trait Implementations§

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impl<T> !RefUnwindSafe for WriteGuard<T>

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impl<T> !UnwindSafe for WriteGuard<T>

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impl<T> Freeze for WriteGuard<T>
where T: Freeze, Arc<ArcSwapAny<Arc<T>>>: Freeze,

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impl<T> Send for WriteGuard<T>
where T: Send, Arc<ArcSwapAny<Arc<T>>>: Send,

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impl<T> Sync for WriteGuard<T>
where T: Sync, Arc<ArcSwapAny<Arc<T>>>: Sync,

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impl<T> Unpin for WriteGuard<T>
where T: Unpin, Arc<ArcSwapAny<Arc<T>>>: Unpin,

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impl<T> UnsafeUnpin for WriteGuard<T>
where T: UnsafeUnpin, Arc<ArcSwapAny<Arc<T>>>: UnsafeUnpin,

Blanket Implementations§

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impl<T, A, P> Access<T> for P
where A: Access<T> + ?Sized, P: Deref<Target = A>,

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type Guard = <A as Access<T>>::Guard

A guard object containing the value and keeping it alive. Read more
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fn load(&self) -> <P as Access<T>>::Guard

The loading method. Read more
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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T, A> DynAccess<T> for A
where A: Access<T>, <A as Access<T>>::Guard: 'static,

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fn load(&self) -> DynGuard<T>

The equivalent of Access::load.
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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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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impl<T> Same for T

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type Output = T

Should always be Self
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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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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