static_graph::sync

Struct OwnedMappedMutexGuard

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.

Implementations§

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

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.

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.

Trait Implementations§

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

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

Formats the value using the given formatter. Read more

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

type Target = U

The resulting type after dereferencing.

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

Dereferences the value.

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

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

Mutably dereferences the value.

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

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

Formats the value using the given formatter. Read more

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

fn drop(&mut self)

Executes the destructor for this type. Read more

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

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

Auto Trait Implementations§

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

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

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

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

Blanket Implementations§

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

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

A guard object containing the value and keeping it alive. Read more

fn load(&self) -> <P as Access<T>>::Guard

The loading method. Read more

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

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

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

The equivalent of Access::load.

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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

type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)

The target type on which the method may be called.

impl<T> ToString for T
where T: Display + ?Sized,

fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T
where 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>

Performs the conversion.

impl<T, U> TryInto<U> for T
where 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>

Performs the conversion.