use crate::ProgressEntry;
use bytes::Bytes;
use core::time::Duration;
use futures::TryStream;
pub trait PullStream<E>:
TryStream<Ok = Bytes, Error = (E, Option<Duration>)> + Send + Unpin
{
}
impl<E, T> PullStream<E> for T where
T: TryStream<Ok = Bytes, Error = (E, Option<Duration>)> + Send + Unpin
{
}
pub type PullResult<T, E> = Result<T, (E, Option<Duration>)>;
pub trait Puller: Send + Sync + Clone + 'static {
type Error: PullerError;
fn pull(
&mut self,
range: Option<&ProgressEntry>,
) -> impl Future<Output = PullResult<impl PullStream<Self::Error>, Self::Error>> + Send;
}
pub trait PullerError: Send + Unpin + 'static {
fn is_irrecoverable(&self) -> bool {
false
}
}