Struct async_ffi::LocalBorrowingFfiFuture

#[repr(C)]
pub struct LocalBorrowingFfiFuture<'a, T> { /* private fields */ }

The FFI compatible future type without Send bound.

Non-Send Futures can only be converted into LocalFfiFuture. It is not able to be spawned in a multi-threaded runtime, but is useful for thread-local futures, single-threaded runtimes, or single-threaded targets like wasm32-unknown-unknown.

See module level documentation for more details.

Implementations

impl<'a, T> LocalBorrowingFfiFuture<'a, T>

pub fn new<F: Future<Output = T> + 'a>(fut: F) -> Self

Convert an std::future::Future into a FFI-compatible LocalFfiFuture.

Usually FutureExt::into_local_ffi is preferred and is identical to this method.

Trait Implementations

impl<T> Drop for LocalBorrowingFfiFuture<'_, T>

fn drop(&mut self)

Executes the destructor for this type.

impl<T> Future for LocalBorrowingFfiFuture<'_, T>

type Output = T

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, ctx: &mut Context<'_>) -> Poll<Self::Output>

Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.

impl<'a, T> GetStaticEquivalent_ for LocalBorrowingFfiFuture<'a, T>where T: __StableAbi,

type StaticEquivalent = _static_LocalBorrowingFfiFuture<'static, <T as GetStaticEquivalent_>::StaticEquivalent>

The 'static equivalent of Self

impl<'a, T> StableAbi for LocalBorrowingFfiFuture<'a, T>where T: __StableAbi,

type IsNonZeroType = False

Whether this type has a single invalid bit-pattern.

const LAYOUT: &'static TypeLayout = _

The layout of the type provided by implementors.

const ABI_CONSTS: AbiConsts = AbiConsts{ type_id: Constructor(crate::std_types::utypeid::new_utypeid::<Self::StaticEquivalent>), is_nonzero: <Self::IsNonZeroType as Boolean>::VALUE,}

const-equivalents of the associated types.