-
Notifications
You must be signed in to change notification settings - Fork 3
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
8 changed files
with
334 additions
and
179 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| use std::future::Future; | ||
| use std::pin::Pin; | ||
| use std::sync::Arc; | ||
| use std::task::{Context, Poll}; | ||
|
|
||
| use futures_util::FutureExt; | ||
| use tokio::sync::{mpsc, oneshot}; | ||
| use tycho_network::PeerId; | ||
| use tycho_util::futures::{JoinTask, Shared}; | ||
| use tycho_util::sync::OnceTake; | ||
|
|
||
| use crate::dag::{DagRound, InclusionState, Verifier}; | ||
| use crate::effects::{CurrentRoundContext, Effects, ValidateContext}; | ||
| use crate::intercom::Downloader; | ||
| use crate::models::{DagPoint, Digest, Location, PointId}; | ||
| use crate::Point; | ||
|
|
||
| #[derive(Clone)] | ||
| pub struct DagPointFuture(DagPointFutureType); | ||
|
|
||
| impl Future for DagPointFuture { | ||
| type Output = DagPoint; | ||
|
|
||
| #[inline] | ||
| fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> { | ||
| match &mut self.0 { | ||
| DagPointFutureType::Broadcast(task) | DagPointFutureType::Download { task, .. } => { | ||
| match task.poll_unpin(cx) { | ||
| Poll::Ready((dag_point, _)) => Poll::Ready(dag_point), | ||
| Poll::Pending => Poll::Pending, | ||
| } | ||
| } | ||
| DagPointFutureType::Local(ready) => ready.poll_unpin(cx), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #[derive(Clone)] | ||
| enum DagPointFutureType { | ||
| Broadcast(Shared<JoinTask<DagPoint>>), | ||
| Download { | ||
| task: Shared<JoinTask<DagPoint>>, | ||
| dependents: mpsc::UnboundedSender<PeerId>, | ||
| verified: Arc<OnceTake<oneshot::Sender<Point>>>, | ||
| }, | ||
| Local(futures_util::future::Ready<DagPoint>), | ||
| } | ||
|
|
||
| impl DagPointFuture { | ||
| pub fn new_local(dag_point: &DagPoint, state: &InclusionState) -> Self { | ||
| state.init(dag_point); | ||
| Self(DagPointFutureType::Local(futures_util::future::ready( | ||
| dag_point.clone(), | ||
| ))) | ||
| } | ||
|
|
||
| pub fn new_broadcast( | ||
| point_dag_round: &DagRound, | ||
| point: &Point, | ||
| state: &InclusionState, | ||
| downloader: &Downloader, | ||
| effects: &Effects<CurrentRoundContext>, | ||
| ) -> Self { | ||
| let downloader = downloader.clone(); | ||
| let span = effects.span().clone(); | ||
| let point_dag_round = point_dag_round.downgrade(); | ||
| let point = point.clone(); | ||
| let state = state.clone(); | ||
| DagPointFuture(DagPointFutureType::Broadcast(Shared::new(JoinTask::new( | ||
| Verifier::validate(point, point_dag_round, downloader, span) | ||
| .inspect(move |dag_point| state.init(dag_point)), | ||
| )))) | ||
| } | ||
|
|
||
| pub fn new_download( | ||
| point_dag_round: &DagRound, | ||
| author: &PeerId, | ||
| digest: &Digest, | ||
| state: &InclusionState, | ||
| downloader: &Downloader, | ||
| effects: &Effects<ValidateContext>, | ||
| ) -> Self { | ||
| let downloader = downloader.clone(); | ||
| let effects = effects.clone(); | ||
| let state = state.clone(); | ||
| let point_dag_round = point_dag_round.clone(); | ||
| let (dependents_tx, dependents_rx) = mpsc::unbounded_channel(); | ||
| let (broadcast_tx, broadcast_rx) = oneshot::channel(); | ||
| let point_id = PointId { | ||
| location: Location { | ||
| author: *author, | ||
| round: point_dag_round.round(), | ||
| }, | ||
| digest: digest.clone(), | ||
| }; | ||
| DagPointFuture(DagPointFutureType::Download { | ||
| task: Shared::new(JoinTask::new( | ||
| downloader | ||
| .run( | ||
| point_id, | ||
| point_dag_round, | ||
| dependents_rx, | ||
| broadcast_rx, | ||
| effects, | ||
| ) | ||
| .inspect(move |dag_point| state.init(dag_point)), | ||
| )), | ||
| dependents: dependents_tx, | ||
| verified: Arc::new(OnceTake::new(broadcast_tx)), | ||
| }) | ||
| } | ||
|
|
||
| pub fn add_depender(&self, dependent: &PeerId) { | ||
| if let DagPointFutureType::Download { dependents, .. } = &self.0 { | ||
| // receiver is dropped upon completion | ||
| _ = dependents.send(*dependent); | ||
| } | ||
| } | ||
|
|
||
| pub fn resolve_download(&self, broadcast: &Point) { | ||
| if let DagPointFutureType::Download { verified, .. } = &self.0 { | ||
| if let Some(oneshot) = verified.take() { | ||
| // receiver is dropped upon completion | ||
| _ = oneshot.send(broadcast.clone()); | ||
| } | ||
| } | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.