Skip to main content

CancellationToken

marsdb_query

Struct CancellationToken 

Source 
pub struct CancellationToken(/* private fields */);
Expand description

Cooperative cancellation handle for a running query. Clone it before execution and call cancel from another thread.

Implementations§

Source§

impl CancellationToken

Source

pub fn new() -> Self

Source

pub fn cancel(&self)

Source

pub fn is_cancelled(&self) -> bool

Trait Implementations§

Source§

impl Clone for CancellationToken

Source§

fn clone(&self) -> CancellationToken

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
Source§

impl Debug for CancellationToken

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Default for CancellationToken

Source§

fn default() -> CancellationToken

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

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> AnyExt for T
where T: Any + ?Sized,

Source§

fn downcast_ref<T>(this: &Self) -> Option<&T>
where T: Any,

Attempts to downcast this to T behind reference
Source§

fn downcast_mut<T>(this: &mut Self) -> Option<&mut T>
where T: Any,

Attempts to downcast this to T behind mutable reference
Source§

fn downcast_rc<T>(this: Rc<Self>) -> Result<Rc<T>, Rc<Self>>
where T: Any,

Attempts to downcast this to T behind Rc pointer
Source§

fn downcast_arc<T>(this: Arc<Self>) -> Result<Arc<T>, Arc<Self>>
where T: Any,

Attempts to downcast this to T behind Arc pointer
Source§

fn downcast_box<T>(this: Box<Self>) -> Result<Box<T>, Box<Self>>
where T: Any,

Attempts to downcast this to T behind Box pointer
Source§

fn downcast_move<T>(this: Self) -> Option<T>
where T: Any, Self: Sized,

Attempts to downcast owned Self to T, useful only in generic context as a workaround for specialization
Source§

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

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

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
Source§

impl<T, X> CoerceTo<T> for X
where T: CoerceFrom<X> + ?Sized,

Source§

fn coerce_rc_to(self: Rc<X>) -> Rc<T>

Source§

fn coerce_box_to(self: Box<X>) -> Box<T>

Source§

fn coerce_ref_to(&self) -> &T

Source§

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

Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

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

Source§

fn into(self) -> U

Calls U::from(self).

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

Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

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

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.