wormhole/node/pkg/processor/broadcast.go

66 lines
1.7 KiB
Go

package processor
import (
"encoding/hex"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
"time"
ethcommon "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"google.golang.org/protobuf/proto"
gossipv1 "github.com/certusone/wormhole/node/pkg/proto/gossip/v1"
"github.com/certusone/wormhole/node/pkg/vaa"
)
var (
observationsBroadcastTotal = promauto.NewCounter(
prometheus.CounterOpts{
Name: "wormhole_observations_broadcast_total",
Help: "Total number of signed observations queued for broadcast",
})
)
func (p *Processor) broadcastSignature(v *vaa.VAA, signature []byte) {
digest, err := v.SigningMsg()
if err != nil {
panic(err)
}
obsv := gossipv1.SignedObservation{
Addr: crypto.PubkeyToAddress(p.gk.PublicKey).Bytes(),
Hash: digest.Bytes(),
Signature: signature,
}
w := gossipv1.GossipMessage{Message: &gossipv1.GossipMessage_SignedObservation{SignedObservation: &obsv}}
msg, err := proto.Marshal(&w)
if err != nil {
panic(err)
}
p.sendC <- msg
// Store our VAA in case we're going to submit it to Solana
hash := hex.EncodeToString(digest.Bytes())
if p.state.vaaSignatures[hash] == nil {
p.state.vaaSignatures[hash] = &vaaState{
firstObserved: time.Now(),
signatures: map[ethcommon.Address][]byte{},
source: "loopback",
}
}
p.state.vaaSignatures[hash].ourVAA = v
p.state.vaaSignatures[hash].ourMsg = msg
p.state.vaaSignatures[hash].gs = p.gs // guaranteed to match ourVAA - there's no concurrent access to p.gs
// Fast path for our own signature
go func() { p.obsvC <- &obsv }()
observationsBroadcastTotal.Inc()
}