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#[ allow(unused_imports) ]
use
{
futures_task :: { SpawnError, LocalFutureObj } ,
futures_util :: { task::{ LocalSpawnExt }, future::{ FutureExt, abortable } } ,
crate :: { JoinHandle } ,
std :: { pin::Pin, future::Future, sync::{ Arc, atomic::AtomicBool }, rc::Rc } ,
};
pub trait LocalSpawnHandle<Out: 'static>
{
fn spawn_handle_local_obj( &self, future: LocalFutureObj<'static, Out> ) -> Result<JoinHandle<Out>, SpawnError>;
}
pub trait LocalSpawnHandleExt<Out: 'static> : LocalSpawnHandle<Out>
{
fn spawn_handle_local( &self, future: impl Future<Output = Out> + 'static ) -> Result<JoinHandle<Out>, SpawnError>;
}
impl<T, Out> LocalSpawnHandleExt<Out> for T
where T : LocalSpawnHandle<Out> + ?Sized ,
Out: 'static ,
{
fn spawn_handle_local( &self, future: impl Future<Output = Out> + 'static ) -> Result<JoinHandle<Out>, SpawnError>
{
self.spawn_handle_local_obj( LocalFutureObj::new(future.boxed_local()) )
}
}
impl<T: ?Sized, Out> LocalSpawnHandle<Out> for Box<T> where T: LocalSpawnHandle<Out>, Out: 'static
{
fn spawn_handle_local_obj( &self, future: LocalFutureObj<'static, Out> ) -> Result<JoinHandle<Out>, SpawnError>
{
(**self).spawn_handle_local_obj( future )
}
}
impl<T: ?Sized, Out> LocalSpawnHandle<Out> for Arc<T> where T: LocalSpawnHandle<Out>, Out: 'static
{
fn spawn_handle_local_obj( &self, future: LocalFutureObj<'static, Out> ) -> Result<JoinHandle<Out>, SpawnError>
{
(**self).spawn_handle_local_obj( future )
}
}
impl<T: ?Sized, Out> LocalSpawnHandle<Out> for Rc<T> where T: LocalSpawnHandle<Out>, Out: 'static
{
fn spawn_handle_local_obj( &self, future: LocalFutureObj<'static, Out> ) -> Result<JoinHandle<Out>, SpawnError>
{
(**self).spawn_handle_local_obj( future )
}
}
impl<T, Out> LocalSpawnHandle<Out> for &T where T: LocalSpawnHandle<Out>, Out: 'static
{
fn spawn_handle_local_obj( &self, future: LocalFutureObj<'static, Out> ) -> Result<JoinHandle<Out>, SpawnError>
{
(**self).spawn_handle_local_obj( future )
}
}
impl<T, Out> LocalSpawnHandle<Out> for &mut T where T: LocalSpawnHandle<Out>, Out: 'static
{
fn spawn_handle_local_obj( &self, future: LocalFutureObj<'static, Out> ) -> Result<JoinHandle<Out>, SpawnError>
{
(**self).spawn_handle_local_obj( future )
}
}
#[ cfg( feature = "localpool" ) ]
impl<Out: 'static> LocalSpawnHandle<Out> for crate::LocalSpawner
{
fn spawn_handle_local_obj( &self, future: LocalFutureObj<'static, Out> ) -> Result<JoinHandle<Out>, SpawnError>
{
let (fut, handle) = future.remote_handle();
self.spawn_local( fut )?;
Ok( JoinHandle{ inner: crate::join_handle::InnerJh::RemoteHandle( Some(handle) ) } )
}
}