async_executors 0.6.0

Implements Spawn, SpawnLocal and SpawnHandle for commonly used executors.
Documentation 
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use
{
	crate            :: { JoinHandle, SpawnHandle               } ,
	futures_task     :: { SpawnError, FutureObj                 } ,
	futures_util     :: { future::{ FutureExt }, task::SpawnExt } ,
	futures_executor :: { ThreadPool                            } ,

};


impl<Out: 'static + Send> SpawnHandle<Out> for ThreadPool
{
	fn spawn_handle_obj( &self, future: FutureObj<'static, Out> ) -> Result<JoinHandle<Out>, SpawnError>
	{
		let (fut, handle) = future.remote_handle();

		self.spawn( fut )?;

		Ok( JoinHandle::remote_handle(handle) )
	}
}


impl crate::YieldNow for ThreadPool {}



#[ cfg( feature = "timer" ) ]
//
#[ cfg_attr( nightly, doc(cfg(all( feature = "timer", feature = "async_global" ))) ) ]
//
impl crate::Timer for ThreadPool
{
	fn sleep( &self, dur: std::time::Duration ) -> futures_core::future::BoxFuture<'static, ()>
	{
		futures_timer::Delay::new( dur ).boxed()
	}
}