TempRef

Struct TempRef 

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pub struct TempRef<'a, T>(/* private fields */);
Expand description

A temporary reference to a shared owned object. This permits access to the shared object, but will block any thread trying to release the last OwnedRef. As such, such reference must be released as soon as possible. In particular, one must not do any blocking operation while owning such a refeence.

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impl<'a, T> TempRef<'a, T>

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pub fn as_ptr(this: &Self) -> *const T

Provides a raw pointer to the data.

See Arc::as_ptr

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pub fn ptr_eq(this: &Self, other: &Self) -> bool

Returns true if the two objects point to the same allocation

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pub fn into_static(this: Self) -> TempRef<'static, T>

This allows to change the lifetime annotation of a TempRef to static.

As TempRef must be dropped as soon as possible, this provided the way to block the release of the related OwnedRefs and as such is considered sensitive. Any caller must ensure that the returned TempRef is not kept around while doing blocking calls.

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pub fn re_own(&self) -> Option<OwnedRef<T>>

Try to upgrade the WeakRef into a OwnedRef. This will fail as soon as the last OwnedRef is released.

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impl<'a, T> AsRef<T> for TempRef<'a, T>

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fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.
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impl<'a, T> Borrow<T> for TempRef<'a, T>

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<'a, T> Debug for TempRef<'a, T>
where T: Debug,

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

Formats the value using the given formatter. Read more
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impl<'a, T> Deref for TempRef<'a, T>

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<'a, T> Drop for TempRef<'a, T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<'a, T> From<&'a OwnedRef<T>> for TempRef<'a, T>

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fn from(owner: &'a OwnedRef<T>) -> Self

Converts to this type from the input type.
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impl<'a, T> From<&TempRef<'a, T>> for WeakRef<T>

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fn from(temp_ref: &TempRef<'a, T>) -> Self

Converts to this type from the input type.
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impl<'a, T> From<&TempRef<'a, T>> for WeakRefKey<T>

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fn from(temp_ref: &TempRef<'a, T>) -> Self

Converts to this type from the input type.
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impl<'a, T> From<&'a mut OwnedRef<T>> for TempRef<'a, T>

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fn from(owner: &'a mut OwnedRef<T>) -> Self

Converts to this type from the input type.
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impl<'a, T> From<TempRef<'a, T>> for WeakRef<T>

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fn from(temp_ref: TempRef<'a, T>) -> Self

Converts to this type from the input type.
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impl<'a, T: Hash> Hash for TempRef<'a, T>

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fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<'a, T: Ord> Ord for TempRef<'a, T>

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fn cmp(&self, other: &TempRef<'_, T>) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl<T: PartialEq> PartialEq<TempRef<'_, T>> for OwnedRef<T>

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fn eq(&self, other: &TempRef<'_, T>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'a, T: PartialEq> PartialEq for TempRef<'a, T>

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fn eq(&self, other: &TempRef<'_, T>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'a, T: PartialOrd> PartialOrd for TempRef<'a, T>

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fn partial_cmp(&self, other: &TempRef<'_, T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl<'a, T: Eq> Eq for TempRef<'a, T>

Auto Trait Implementations§

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impl<'a, T> Freeze for TempRef<'a, T>

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impl<'a, T> RefUnwindSafe for TempRef<'a, T>
where T: RefUnwindSafe,

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impl<'a, T> !Send for TempRef<'a, T>

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impl<'a, T> !Sync for TempRef<'a, T>

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impl<'a, T> Unpin for TempRef<'a, T>

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impl<'a, T> UnwindSafe for TempRef<'a, T>
where T: RefUnwindSafe,

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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> AsAny for T
where T: Any,

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fn as_any(&self) -> &(dyn Any + 'static)

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fn type_name(&self) -> &'static str

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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, D> Encode<Ambiguous1, D> for T
where D: ResourceDialect,

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unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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impl<T, D> Encode<Ambiguous2, D> for T
where D: ResourceDialect,

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unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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

Compare self to key and return true if they are equal.
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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, U> Into32<U> for T
where U: MultiArchFrom<T>,

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fn into_32(self) -> U

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impl<T, U> Into64<U> for T
where U: MultiArchFrom<T>,

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fn into_64(self) -> U

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T, U> IntoFidl<U> for T
where U: FromFidl<T>,

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fn into_fidl(self) -> U

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impl<T, U> MultiArchFrom<T> for U
where U: From<T>,

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fn from_64(value: T) -> U

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fn from_32(value: T) -> U

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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<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, 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.