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Add DHT key-value behaviour (#2937)

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* Add DHT key-value behaviour

* Apply suggestions from code review

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>

* Apply suggestions from code review

Co-Authored-By: Pierre Krieger <pierre.krieger1708@gmail.com>

* Return which key failed to be inserted
This commit is contained in:
Fedor Sakharov
2019-06-26 14:30:39 +03:00
committed by Pierre Krieger
parent 0ddf4a2a00
commit e735853ca3
9 changed files with 181 additions and 14 deletions
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substrate/core/network/src/service.rs
+19 -3
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@@ -23,10 +23,11 @@ use std::time::Duration;
use log::{warn, error, info};
use libp2p::core::swarm::NetworkBehaviour;
use libp2p::core::{nodes::Substream, transport::boxed::Boxed, muxing::StreamMuxerBox};
use libp2p::multihash::Multihash;
use futures::{prelude::*, sync::oneshot, sync::mpsc};
use parking_lot::{Mutex, RwLock};
use crate::protocol_behaviour::ProtocolBehaviour;
use crate::{behaviour::Behaviour, parse_str_addr};
use crate::{behaviour::{Behaviour, BehaviourOut}, parse_str_addr};
use crate::{NetworkState, NetworkStateNotConnectedPeer, NetworkStatePeer};
use crate::{transport, config::NodeKeyConfig, config::NonReservedPeerMode};
use peerset::PeersetHandle;
@@ -35,7 +36,7 @@ use runtime_primitives::{traits::{Block as BlockT, NumberFor}, ConsensusEngineId
use crate::AlwaysBadChecker;
use crate::protocol::consensus_gossip::{ConsensusGossip, MessageRecipient as GossipMessageRecipient};
use crate::protocol::message::Message;
use crate::protocol::{event::Event, message::Message};
use crate::protocol::on_demand::RequestData;
use crate::protocol::{self, Context, CustomMessageOutcome, ConnectedPeer, PeerInfo};
use crate::protocol::sync::SyncState;
@@ -370,6 +371,16 @@ impl<B: BlockT + 'static, S: NetworkSpecialization<B>, H: ExHashT> NetworkServic
pub fn is_major_syncing(&self) -> bool {
self.is_major_syncing.load(Ordering::Relaxed)
}
/// Get a value.
pub fn get_value(&mut self, key: &Multihash) {
self.network.lock().get_value(key);
}
/// Put a value.
pub fn put_value(&mut self, key: Multihash, value: Vec<u8>) {
self.network.lock().put_value(key, value);
}
}
impl<B: BlockT + 'static, S: NetworkSpecialization<B>, H: ExHashT> NetworkService<B, S, H> {
@@ -744,7 +755,12 @@ impl<B: BlockT + 'static, S: NetworkSpecialization<B>, H: ExHashT> Future for Ne
let outcome = match poll_value {
Ok(Async::NotReady) => break,
Ok(Async::Ready(Some(outcome))) => outcome,
Ok(Async::Ready(Some(BehaviourOut::Behaviour(outcome)))) => outcome,
Ok(Async::Ready(Some(BehaviourOut::Dht(ev)))) => {
network_service.user_protocol_mut()
.on_event(Event::Dht(ev));
CustomMessageOutcome::None
},
Ok(Async::Ready(None)) => CustomMessageOutcome::None,
Err(err) => {
error!(target: "sync", "Error in the network: {:?}", err);