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grandpa: consistent argument ordering in rebroadcast vs. network (#1647)

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* grandpa: consistent argument ordering in rebroadcast vs. network

* use a round type
This commit is contained in:
Robert Habermeier
2019-02-01 13:17:43 -03:00
committed by Gav Wood
parent 1ea56905cf
commit 2155e44e13
1 changed files with 49 additions and 39 deletions
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substrate/core/finality-grandpa/src/communication.rs
+49 -39
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@@ -33,24 +33,29 @@ fn localized_payload<E: Encode>(round: u64, set_id: u64, message: &E) -> Vec<u8>
(message, round, set_id).encode()
}
#[derive(Clone, Copy, Eq, PartialEq, PartialOrd, Ord)]
struct Round(u64);
#[derive(Clone, Copy, Eq, PartialEq, PartialOrd, Ord)]
struct SetId(u64);
enum Broadcast<Block: BlockT> {
// set_id, round, encoded commit.
Commit(u64, u64, Vec<u8>),
// set_id, round, encoded signed message.
Message(u64, u64, Vec<u8>),
// set_id, round, announcement of block hash that should be downloaded
Announcement(u64, u64, Block::Hash),
// set_id, round being dropped.
DropRound(u64, u64),
// round, set id, encoded commit.
Commit(Round, SetId, Vec<u8>),
// round, set id, encoded signed message.
Message(Round, SetId, Vec<u8>),
// round, set id, announcement of block hash that should be downloaded
Announcement(Round, SetId, Block::Hash),
// round, set id being dropped.
DropRound(Round, SetId),
}
impl<Block: BlockT> Broadcast<Block> {
fn set_id(&self) -> u64 {
fn set_id(&self) -> SetId {
match *self {
Broadcast::Commit(s, _, _) => s,
Broadcast::Message(s, _, _) => s,
Broadcast::Announcement(s, _, _) => s,
Broadcast::DropRound(s, _) => s,
Broadcast::Commit(_, s, _) => s,
Broadcast::Message(_, s, _) => s,
Broadcast::Announcement(_, s, _) => s,
Broadcast::DropRound(_, s) => s,
}
}
}
@@ -66,9 +71,9 @@ pub(crate) fn rebroadcasting_network<B: BlockT, N: Network<B>>(network: N) -> (B
(
BroadcastWorker {
interval: Interval::new_interval(REBROADCAST_PERIOD),
set_id: 0, // will be overwritten on first item to broadcast.
set_id: SetId(0), // will be overwritten on first item to broadcast.
last_commit: None,
round_messages: (0, Vec::new()),
round_messages: (Round(0), Vec::new()),
announcements: HashMap::new(),
network: network.clone(),
incoming_broadcast: rx,
@@ -85,10 +90,10 @@ pub(crate) fn rebroadcasting_network<B: BlockT, N: Network<B>>(network: N) -> (B
#[must_use = "network rebroadcast future must be driven to completion"]
pub(crate) struct BroadcastWorker<B: BlockT, N: Network<B>> {
interval: Interval,
set_id: u64,
last_commit: Option<(u64, Vec<u8>)>,
round_messages: (u64, Vec<Vec<u8>>),
announcements: HashMap<B::Hash, u64>,
set_id: SetId,
last_commit: Option<(Round, Vec<u8>)>,
round_messages: (Round, Vec<Vec<u8>>),
announcements: HashMap<B::Hash, Round>,
network: N,
incoming_broadcast: mpsc::UnboundedReceiver<Broadcast<B>>,
}
@@ -115,17 +120,18 @@ impl<B: BlockT, N: Network<B>> Future for BroadcastWorker<B, N> {
}
if rebroadcast {
if let Some((c_round, ref c_commit)) = self.last_commit {
self.network.send_commit(c_round, self.set_id, c_commit.clone());
let SetId(set_id) = self.set_id;
if let Some((Round(c_round), ref c_commit)) = self.last_commit {
self.network.send_commit(c_round, set_id, c_commit.clone());
}
let round = self.round_messages.0;
let Round(round) = self.round_messages.0;
for message in self.round_messages.1.iter().cloned() {
self.network.send_message(round, self.set_id, message);
self.network.send_message(round, set_id, message);
}
for (&announce_hash, &round) in &self.announcements {
self.network.announce(round, self.set_id, announce_hash);
for (&announce_hash, &Round(round)) in &self.announcements {
self.network.announce(round, set_id, announce_hash);
}
}
}
@@ -139,22 +145,24 @@ impl<B: BlockT, N: Network<B>> Future for BroadcastWorker<B, N> {
if item.set_id() > self.set_id {
self.set_id = item.set_id();
self.last_commit = None;
self.round_messages = (0, Vec::new());
self.round_messages = (Round(0), Vec::new());
self.announcements.clear();
}
match item {
Broadcast::Commit(set_id, round, commit) => {
Broadcast::Commit(round, set_id, commit) => {
if self.set_id == set_id {
if round >= self.last_commit.as_ref().map_or(0, |&(r, _)| r) {
if round >= self.last_commit.as_ref()
.map_or(Round(0), |&(r, _)| r)
{
self.last_commit = Some((round, commit.clone()));
}
}
// always send out to network.
self.network.send_commit(round, self.set_id, commit);
self.network.send_commit(round.0, self.set_id.0, commit);
}
Broadcast::Message(set_id, round, message) => {
Broadcast::Message(round, set_id, message) => {
if self.set_id == set_id {
if round > self.round_messages.0 {
self.round_messages = (round, vec![message.clone()]);
@@ -166,20 +174,20 @@ impl<B: BlockT, N: Network<B>> Future for BroadcastWorker<B, N> {
}
// always send out to network.
self.network.send_message(round, set_id, message);
self.network.send_message(round.0, set_id.0, message);
}
Broadcast::Announcement(set_id, round, hash) => {
Broadcast::Announcement(round, set_id, hash) => {
if self.set_id == set_id {
self.announcements.insert(hash, round);
}
// always send out.
self.network.announce(round, set_id, hash);
self.network.announce(round.0, set_id.0, hash);
}
Broadcast::DropRound(set_id, round) => {
Broadcast::DropRound(round, set_id) => {
// stop making announcements for any dead rounds.
self.announcements.retain(|_, &mut r| r > round);
self.network.drop_messages(round, set_id);
self.network.drop_messages(round.0, set_id.0);
}
}
}
@@ -196,11 +204,11 @@ impl<B: BlockT, N: Network<B>> Network<B> for BroadcastHandle<B, N> {
}
fn send_message(&self, round: u64, set_id: u64, message: Vec<u8>) {
let _ = self.relay.unbounded_send(Broadcast::Message(set_id, round, message));
let _ = self.relay.unbounded_send(Broadcast::Message(Round(round), SetId(set_id), message));
}
fn drop_messages(&self, round: u64, set_id: u64) {
let _ = self.relay.unbounded_send(Broadcast::DropRound(set_id, round));
let _ = self.relay.unbounded_send(Broadcast::DropRound(Round(round), SetId(set_id)));
}
fn commit_messages(&self, set_id: u64) -> Self::In {
@@ -208,11 +216,13 @@ impl<B: BlockT, N: Network<B>> Network<B> for BroadcastHandle<B, N> {
}
fn send_commit(&self, round: u64, set_id: u64, message: Vec<u8>) {
let _ = self.relay.unbounded_send(Broadcast::Commit(round, set_id, message));
let _ = self.relay.unbounded_send(Broadcast::Commit(Round(round), SetId(set_id), message));
}
fn announce(&self, round: u64, set_id: u64, block: B::Hash) {
let _ = self.relay.unbounded_send(Broadcast::Announcement(round, set_id, block));
let _ = self.relay.unbounded_send(
Broadcast::Announcement(Round(round), SetId(set_id), block)
);
}
}