JobRef in rustc_thread_pool::job - Rust
Description: Effectively a Job trait object. Each JobRef must be executed exactly once, or else data may leak.

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## JobRef

# Struct JobRef

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    pub(crate) struct JobRef {
        pointer: *const (),
        execute_fn: unsafe fn(*const ()),
    }

Expand description

Effectively a Job trait object. Each JobRef must be executed exactly once, or else data may leak.

Internally, we store the job’s data in a `*const ()` pointer. The true type is something like `*const StackJob<...>`, but we hide it. We also carry the “execute fn” from the `Job` trait.

## Fields§

§`pointer: *const ()`§`execute_fn: unsafe fn(*const ())`

## Implementations§

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### impl JobRef

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#### pub(crate) unsafe fn new<T>(data: *const T) -> JobRef
where T: Job,

Unsafe: caller asserts that `data` will remain valid until the job is executed.

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#### pub(crate) fn id(&self) -> JobRefId

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#### pub(crate) unsafe fn execute(self)

## Trait Implementations§

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### impl Send for JobRef

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### impl Sync for JobRef

## Auto Trait Implementations§

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### impl Freeze for JobRef

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### impl RefUnwindSafe for JobRef

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### impl Unpin for JobRef

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### impl UnsafeUnpin for JobRef

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### impl UnwindSafe for JobRef

## 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> 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<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.

## Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain `repr(...)` attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes