code_mesh_core::runtime::sync

Struct OwnedMappedMutexGuard

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pub struct OwnedMappedMutexGuard<T, U = T>
where
    T: ?Sized,
    U: ?Sized,
{ /* private fields */ }
Expand description

A owned handle to a held Mutex that has had a function applied to it via OwnedMutexGuard::map.

This can be used to hold a subfield of the protected data.

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impl<T, U> OwnedMappedMutexGuard<T, U>
where T: ?Sized, U: ?Sized,

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pub fn map<S, F>( this: OwnedMappedMutexGuard<T, U>, f: F, ) -> OwnedMappedMutexGuard<T, S>
where F: FnOnce(&mut U) -> &mut S,

Makes a new OwnedMappedMutexGuard for a component of the locked data.

This operation cannot fail as the OwnedMappedMutexGuard passed in already locked the mutex.

This is an associated function that needs to be used as OwnedMappedMutexGuard::map(...). A method would interfere with methods of the same name on the contents of the locked data.

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pub fn try_map<S, F>( this: OwnedMappedMutexGuard<T, U>, f: F, ) -> Result<OwnedMappedMutexGuard<T, S>, OwnedMappedMutexGuard<T, U>>
where F: FnOnce(&mut U) -> Option<&mut S>,

Attempts to make a new OwnedMappedMutexGuard for a component of the locked data. The original guard is returned if the closure returns None.

This operation cannot fail as the OwnedMutexGuard passed in already locked the mutex.

This is an associated function that needs to be used as OwnedMutexGuard::try_map(...). A method would interfere with methods of the same name on the contents of the locked data.

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impl<T, U> Debug for OwnedMappedMutexGuard<T, U>
where U: Debug + ?Sized, T: ?Sized,

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

Formats the value using the given formatter. Read more
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impl<T, U> Deref for OwnedMappedMutexGuard<T, U>
where T: ?Sized, U: ?Sized,

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type Target = U

The resulting type after dereferencing.
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fn deref(&self) -> &<OwnedMappedMutexGuard<T, U> as Deref>::Target

Dereferences the value.
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impl<T, U> DerefMut for OwnedMappedMutexGuard<T, U>
where T: ?Sized, U: ?Sized,

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fn deref_mut(&mut self) -> &mut <OwnedMappedMutexGuard<T, U> as Deref>::Target

Mutably dereferences the value.
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impl<T, U> Display for OwnedMappedMutexGuard<T, U>
where U: Display + ?Sized, T: ?Sized,

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

Formats the value using the given formatter. Read more
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impl<T, U> Drop for OwnedMappedMutexGuard<T, U>
where T: ?Sized, U: ?Sized,

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<T, U> Send for OwnedMappedMutexGuard<T, U>
where T: Send + ?Sized, U: Send + ?Sized,

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impl<T, U> Sync for OwnedMappedMutexGuard<T, U>
where T: Send + Sync + ?Sized, U: Send + Sync + ?Sized,

Auto Trait Implementations§

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impl<T, U> Freeze for OwnedMappedMutexGuard<T, U>
where T: ?Sized, U: ?Sized,

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impl<T, U = T> !RefUnwindSafe for OwnedMappedMutexGuard<T, U>

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impl<T, U> Unpin for OwnedMappedMutexGuard<T, U>
where T: ?Sized, U: ?Sized,

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impl<T, U = T> !UnwindSafe for OwnedMappedMutexGuard<T, U>

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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> 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> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. 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> Same for T

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type Output = T

Should always be Self
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T> ToStringFallible for T
where T: Display,

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fn try_to_string(&self) -> Result<String, TryReserveError>

ToString::to_string, but without panic on OOM.

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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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where V: MultiLane<T>,

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where S: Into<Dispatch>,

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