thread_local

Struct CachedThreadLocal

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pub struct CachedThreadLocal<T: Send> { /* private fields */ }
👎Deprecated since 1.1.0: Use ThreadLocal instead
Expand description

Wrapper around ThreadLocal.

This used to add a fast path for a single thread, however that has been obsoleted by performance improvements to ThreadLocal itself.

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impl<T: Send> CachedThreadLocal<T>

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pub fn new() -> CachedThreadLocal<T>

Creates a new empty CachedThreadLocal.

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

Returns the element for the current thread, if it exists.

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pub fn get_or<F>(&self, create: F) -> &T
where F: FnOnce() -> T,

Returns the element for the current thread, or creates it if it doesn’t exist.

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pub fn get_or_try<F, E>(&self, create: F) -> Result<&T, E>
where F: FnOnce() -> Result<T, E>,

Returns the element for the current thread, or creates it if it doesn’t exist. If create fails, that error is returned and no element is added.

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pub fn iter_mut(&mut self) -> CachedIterMut<'_, T>

Returns a mutable iterator over the local values of all threads.

Since this call borrows the ThreadLocal mutably, this operation can be done safely—the mutable borrow statically guarantees no other threads are currently accessing their associated values.

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pub fn clear(&mut self)

Removes all thread-specific values from the ThreadLocal, effectively reseting it to its original state.

Since this call borrows the ThreadLocal mutably, this operation can be done safely—the mutable borrow statically guarantees no other threads are currently accessing their associated values.

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impl<T: Send + Default> CachedThreadLocal<T>

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pub fn get_or_default(&self) -> &T

Returns the element for the current thread, or creates a default one if it doesn’t exist.

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impl<T: Send + Debug> Debug for CachedThreadLocal<T>

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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<T: Send> Default for CachedThreadLocal<T>

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fn default() -> CachedThreadLocal<T>

Returns the “default value” for a type. Read more
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impl<'a, T: Send + 'a> IntoIterator for &'a mut CachedThreadLocal<T>

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type Item = &'a mut T

The type of the elements being iterated over.
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type IntoIter = CachedIterMut<'a, T>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> CachedIterMut<'a, T>

Creates an iterator from a value. Read more
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impl<T: Send> IntoIterator for CachedThreadLocal<T>

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type Item = T

The type of the elements being iterated over.
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type IntoIter = CachedIntoIter<T>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> CachedIntoIter<T>

Creates an iterator from a value. Read more
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impl<T: Send + UnwindSafe> UnwindSafe for CachedThreadLocal<T>

Auto Trait Implementations§

Blanket Implementations§

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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, 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> 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.