pub struct FreezeLock<T> {
    data: UnsafeCell<T>,
    frozen: AtomicBool,
    lock: RwLock<()>,
}
Expand description

A type which allows mutation using a lock until the value is frozen and can be accessed lock-free.

Unlike RwLock, it can be used to prevent mutation past a point.

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§data: UnsafeCell<T>§frozen: AtomicBool§lock: RwLock<()>

This lock protects writes to the data and frozen fields.

Implementations§

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impl<T> FreezeLock<T>

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pub fn new(value: T) -> Self

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pub fn frozen(value: T) -> Self

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pub fn with(value: T, frozen: bool) -> Self

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pub fn clone(&self) -> Selfwhere T: Clone,

Clones the inner value along with the frozen state.

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pub fn is_frozen(&self) -> bool

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pub fn get(&self) -> Option<&T>

Get the inner value if frozen.

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pub fn read(&self) -> FreezeReadGuard<'_, T>

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pub fn borrow(&self) -> FreezeReadGuard<'_, T>

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pub fn write(&self) -> FreezeWriteGuard<'_, T>

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pub fn try_write(&self) -> Option<FreezeWriteGuard<'_, T>>

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pub fn freeze(&self) -> &T

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impl<T: Default> Default for FreezeLock<T>

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fn default() -> FreezeLock<T>

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<T> !RefUnwindSafe for FreezeLock<T>

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impl<T> Send for FreezeLock<T>where T: Send,

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impl<T> !Sync for FreezeLock<T>

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impl<T> Unpin for FreezeLock<T>where T: Unpin,

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impl<T> UnwindSafe for FreezeLock<T>where T: UnwindSafe,

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impl<T> Aligned for T

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const ALIGN: Alignment = const ALIGN: Alignment = Alignment::of::<Self>();

Alignment of Self.
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impl<T> Any for Twhere 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 Twhere 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 Twhere 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, U> Into<U> for Twhere 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> TryFrom<U> for Twhere 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 Twhere 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<'a, T> Captures<'a> for Twhere T: ?Sized,

Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.