frostfs-node/pkg/innerring/processors/alphabet/process_emit.go

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package alphabet
import (
"crypto/elliptic"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
"go.uber.org/zap"
)
const emitMethod = "emit"
// nolint: funlen
func (ap *Processor) processEmit() {
index := ap.irList.AlphabetIndex()
if index < 0 {
ap.log.Info("non alphabet mode, ignore gas emission event")
return
}
contract, ok := ap.alphabetContracts.GetByIndex(index)
if !ok {
ap.log.Debug("node is out of alphabet range, ignore gas emission event",
zap.Int("index", index))
return
}
// there is no signature collecting, so we don't need extra fee
err := ap.morphClient.Invoke(contract, 0, emitMethod)
if err != nil {
ap.log.Warn("can't invoke alphabet emit method", zap.String("error", err.Error()))
return
}
if ap.storageEmission == 0 {
ap.log.Info("storage node emission is off")
return
}
networkMap, err := ap.netmapClient.NetMap()
if err != nil {
ap.log.Warn("can't get netmap snapshot to emit gas to storage nodes",
zap.String("error", err.Error()))
return
}
nmNodes := networkMap.Nodes()
nmLen := len(nmNodes)
extraLen := len(ap.parsedWallets)
ap.log.Debug("gas emission",
zap.Int("network_map", nmLen),
zap.Int("extra_wallets", extraLen))
if nmLen+extraLen == 0 {
return
}
gasPerNode := fixedn.Fixed8(ap.storageEmission / uint64(nmLen+extraLen))
for i := range nmNodes {
keyBytes := nmNodes[i].PublicKey()
key, err := keys.NewPublicKeyFromBytes(keyBytes, elliptic.P256())
if err != nil {
ap.log.Warn("can't parse node public key",
zap.String("error", err.Error()))
continue
}
err = ap.morphClient.TransferGas(key.GetScriptHash(), gasPerNode)
if err != nil {
ap.log.Warn("can't transfer gas",
zap.String("receiver", key.Address()),
zap.Int64("amount", int64(gasPerNode)),
zap.String("error", err.Error()),
)
}
}
if extraLen != 0 {
err = ap.morphClient.BatchTransferGas(ap.parsedWallets, gasPerNode)
if err != nil {
receiversLog := make([]string, extraLen)
for i, addr := range ap.parsedWallets {
receiversLog[i] = addr.StringLE()
}
ap.log.Warn("can't transfer gas to wallet",
zap.Strings("receivers", receiversLog),
zap.Int64("amount", int64(gasPerNode)),
zap.String("error", err.Error()),
)
}
}
}