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metadata_delegator.go
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/
metadata_delegator.go
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// Copyright (C) 2019-2024, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package state
import (
"github.com/ava-labs/avalanchego/database"
"github.com/ava-labs/avalanchego/ids"
)
type delegatorMetadata struct {
PotentialReward uint64 `v1:"true"`
StakerStartTime uint64 `v1:"true"`
txID ids.ID
}
func parseDelegatorMetadata(bytes []byte, metadata *delegatorMetadata) error {
var err error
switch len(bytes) {
case database.Uint64Size:
// only potential reward was stored
metadata.PotentialReward, err = database.ParseUInt64(bytes)
default:
_, err = MetadataCodec.Unmarshal(bytes, metadata)
}
return err
}
func writeDelegatorMetadata(db database.KeyValueWriter, metadata *delegatorMetadata, codecVersion uint16) error {
// The "0" codec is skipped for [delegatorMetadata]. This is to ensure the
// [validatorMetadata] codec version is the same as the [delegatorMetadata]
// codec version.
//
// TODO: Cleanup post-Durango activation.
if codecVersion == 0 {
return database.PutUInt64(db, metadata.txID[:], metadata.PotentialReward)
}
metadataBytes, err := MetadataCodec.Marshal(codecVersion, metadata)
if err != nil {
return err
}
return db.Put(metadata.txID[:], metadataBytes)
}