Struct heron::rapier_plugin::rapier2d::crossbeam::thread::Scope [−]
pub struct Scope<'env> { /* fields omitted */ }
Expand description
A scope for spawning threads.
Implementations
impl<'env> Scope<'env>
impl<'env> Scope<'env>
Spawns a scoped thread.
This method is similar to the spawn
function in Rust’s standard library. The difference
is that this thread is scoped, meaning it’s guaranteed to terminate before the scope exits,
allowing it to reference variables outside the scope.
The scoped thread is passed a reference to this scope as an argument, which can be used for spawning nested threads.
The returned handle can be used to manually join the thread before the scope exits.
This will create a thread using default parameters of ScopedThreadBuilder
, if you want to specify the
stack size or the name of the thread, use this API instead.
Panics
Panics if the OS fails to create a thread; use ScopedThreadBuilder::spawn
to recover from such errors.
Examples
use crossbeam_utils::thread;
thread::scope(|s| {
let handle = s.spawn(|_| {
println!("A child thread is running");
42
});
// Join the thread and retrieve its result.
let res = handle.join().unwrap();
assert_eq!(res, 42);
}).unwrap();
pub fn builder(&'scope self) -> ScopedThreadBuilder<'scope, 'env>
pub fn builder(&'scope self) -> ScopedThreadBuilder<'scope, 'env>
Creates a builder that can configure a thread before spawning.
Examples
use crossbeam_utils::thread;
thread::scope(|s| {
s.builder()
.spawn(|_| println!("A child thread is running"))
.unwrap();
}).unwrap();
Trait Implementations
Auto Trait Implementations
impl<'env> !RefUnwindSafe for Scope<'env>
impl<'env> !UnwindSafe for Scope<'env>
Blanket Implementations
Mutably borrows from an owned value. Read more
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any,
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read more
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more
impl<T> Pointable for T
impl<T> Pointable for T
impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
The inverse inclusion map: attempts to construct self
from the equivalent element of its
superset. Read more
pub fn is_in_subset(&self) -> bool
pub fn is_in_subset(&self) -> bool
Checks if self
is actually part of its subset T
(and can be converted to it).
pub fn to_subset_unchecked(&self) -> SS
pub fn to_subset_unchecked(&self) -> SS
Use with care! Same as self.to_subset
but without any property checks. Always succeeds.
pub fn from_subset(element: &SS) -> SP
pub fn from_subset(element: &SS) -> SP
The inclusion map: converts self
to the equivalent element of its superset.
pub fn vzip(self) -> V
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more