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CaptureSet

Struct CaptureSet 

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pub struct CaptureSet { /* private fields */ }
Expand description

Which capturable aspects a capture should collect.

There is no Default implementation; see the module documentation.

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impl CaptureSet

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pub const NONE: Self

Collect nothing.

Every aspect is then Captured::NotCaptured, which leaves the target thread’s own values alone.

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pub const IMPERSONATION: Self

Just the impersonation context.

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pub const ERROR_MODE: Self

Just the thread error mode.

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pub const TRANSACTION: Self

Just the current TxF transaction.

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pub const DEFAULT: Self

The recommended starting point: impersonation and the thread error mode.

Adding an aspect to this set is a breaking change, and that is the reason it exists as a name rather than as a Default implementation.

TxF is deliberately excluded. It is deprecated by Microsoft, capturing it costs a lazy ntdll binding a caller may never need, and – the reason that actually decides it – a captured transaction enlists remoted work in a transaction the caller may commit or roll back while that work is still running. That is a hazard to opt into deliberately, not one to acquire by taking a default. Add TRANSACTION when you mean it.

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pub const ALL: Self

Every capturable aspect this version knows.

This set grows. Membership is its meaning, so a later version adding an aspect will capture it here without further notice. A caller that needs a fixed set should name its aspects instead.

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pub const fn union(self, other: Self) -> Self

Both sets’ aspects.

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pub const fn without(self, other: Self) -> Self

This set without other’s aspects.

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pub const fn contains(self, other: Self) -> bool

Whether every aspect of other is present.

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pub const fn is_empty(self) -> bool

Whether nothing would be collected.

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pub fn aspects(self) -> impl Iterator<Item = CapturableAspect>

The aspects in this set, in a stable order.

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impl Clone for CaptureSet

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fn clone(&self) -> CaptureSet

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for CaptureSet

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impl Debug for CaptureSet

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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 Eq for CaptureSet

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impl From<CapturableAspect> for CaptureSet

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fn from(aspect: CapturableAspect) -> Self

Converts to this type from the input type.
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impl Hash for CaptureSet

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for CaptureSet

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fn eq(&self, other: &CaptureSet) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for CaptureSet

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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.