prysm-pulse/beacon-chain/p2p/interfaces.go
Preston Van Loon 18b3203f31
Wait for subnet peers before broadcasting onto attestation subnet topic (#6893)
* Initial pass

* Add metric to measure success

* Use a subnet RWLock to prevent duplicate requests, give up after 3 attempts

* push latest commented code

* try with non-blocking broadcast

* Add feature flag, ignore parent deadline if any

* Add slot as metadata

* add tests

* gaz

Co-authored-by: nisdas <nishdas93@gmail.com>
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2020-08-10 10:27:50 -05:00

95 lines
2.9 KiB
Go

package p2p
import (
"context"
"github.com/ethereum/go-ethereum/p2p/enr"
"github.com/gogo/protobuf/proto"
"github.com/libp2p/go-libp2p-core/connmgr"
"github.com/libp2p/go-libp2p-core/host"
"github.com/libp2p/go-libp2p-core/network"
"github.com/libp2p/go-libp2p-core/peer"
pubsub "github.com/libp2p/go-libp2p-pubsub"
ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
"github.com/prysmaticlabs/prysm/beacon-chain/p2p/encoder"
"github.com/prysmaticlabs/prysm/beacon-chain/p2p/peers"
pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
)
// P2P represents the full p2p interface composed of all of the sub-interfaces.
type P2P interface {
Broadcaster
SetStreamHandler
EncodingProvider
PubSubProvider
PubSubTopicUser
PeerManager
Sender
ConnectionHandler
PeersProvider
MetadataProvider
}
// Broadcaster broadcasts messages to peers over the p2p pubsub protocol.
type Broadcaster interface {
Broadcast(context.Context, proto.Message) error
BroadcastAttestation(ctx context.Context, subnet uint64, att *ethpb.Attestation) error
}
// SetStreamHandler configures p2p to handle streams of a certain topic ID.
type SetStreamHandler interface {
SetStreamHandler(topic string, handler network.StreamHandler)
}
// PubSubTopicUser provides way to join, use and leave PubSub topics.
type PubSubTopicUser interface {
JoinTopic(topic string, opts ...pubsub.TopicOpt) (*pubsub.Topic, error)
LeaveTopic(topic string) error
PublishToTopic(ctx context.Context, topic string, data []byte, opts ...pubsub.PubOpt) error
SubscribeToTopic(topic string, opts ...pubsub.SubOpt) (*pubsub.Subscription, error)
}
// ConnectionHandler configures p2p to handle connections with a peer.
type ConnectionHandler interface {
AddConnectionHandler(f func(ctx context.Context, id peer.ID) error)
AddDisconnectionHandler(f func(ctx context.Context, id peer.ID) error)
connmgr.ConnectionGater
}
// EncodingProvider provides p2p network encoding.
type EncodingProvider interface {
Encoding() encoder.NetworkEncoding
}
// PubSubProvider provides the p2p pubsub protocol.
type PubSubProvider interface {
PubSub() *pubsub.PubSub
}
// PeerManager abstracts some peer management methods from libp2p.
type PeerManager interface {
Disconnect(peer.ID) error
PeerID() peer.ID
Host() host.Host
ENR() *enr.Record
RefreshENR()
FindPeersWithSubnet(ctx context.Context, index uint64) (bool, error)
AddPingMethod(reqFunc func(ctx context.Context, id peer.ID) error)
}
// Sender abstracts the sending functionality from libp2p.
type Sender interface {
Send(context.Context, interface{}, string, peer.ID) (network.Stream, error)
}
// PeersProvider abstracts obtaining our current list of known peers status.
type PeersProvider interface {
Peers() *peers.Status
}
// MetadataProvider returns the metadata related information for the local peer.
type MetadataProvider interface {
Metadata() *pb.MetaData
MetadataSeq() uint64
}