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setters_randao.go
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/
setters_randao.go
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package state_native
import (
"github.com/pkg/errors"
"github.com/prysmaticlabs/prysm/v4/beacon-chain/state/state-native/types"
"github.com/prysmaticlabs/prysm/v4/beacon-chain/state/stateutil"
"github.com/prysmaticlabs/prysm/v4/config/features"
fieldparams "github.com/prysmaticlabs/prysm/v4/config/fieldparams"
consensus_types "github.com/prysmaticlabs/prysm/v4/consensus-types"
)
// SetRandaoMixes for the beacon state. Updates the entire
// randao mixes to a new value by overwriting the previous one.
func (b *BeaconState) SetRandaoMixes(val [][]byte) error {
b.lock.Lock()
defer b.lock.Unlock()
if features.Get().EnableExperimentalState {
if b.randaoMixesMultiValue != nil {
b.randaoMixesMultiValue.Detach(b)
}
b.randaoMixesMultiValue = NewMultiValueRandaoMixes(val)
} else {
b.sharedFieldReferences[types.RandaoMixes].MinusRef()
b.sharedFieldReferences[types.RandaoMixes] = stateutil.NewRef(1)
rootsArr := make([][32]byte, fieldparams.RandaoMixesLength)
for i := 0; i < len(rootsArr); i++ {
copy(rootsArr[i][:], val[i])
}
b.randaoMixes = rootsArr
}
b.markFieldAsDirty(types.RandaoMixes)
b.rebuildTrie[types.RandaoMixes] = true
return nil
}
// UpdateRandaoMixesAtIndex for the beacon state. Updates the randao mixes
// at a specific index to a new value.
func (b *BeaconState) UpdateRandaoMixesAtIndex(idx uint64, val [32]byte) error {
if features.Get().EnableExperimentalState {
if err := b.randaoMixesMultiValue.UpdateAt(b, idx, val); err != nil {
return errors.Wrap(err, "could not update randao mixes")
}
} else {
if uint64(len(b.randaoMixes)) <= idx {
return errors.Wrapf(consensus_types.ErrOutOfBounds, "randao mix index %d does not exist", idx)
}
b.lock.Lock()
m := b.randaoMixes
if ref := b.sharedFieldReferences[types.RandaoMixes]; ref.Refs() > 1 {
// Copy elements in underlying array by reference.
m = make([][32]byte, len(b.randaoMixes))
copy(m, b.randaoMixes)
ref.MinusRef()
b.sharedFieldReferences[types.RandaoMixes] = stateutil.NewRef(1)
}
m[idx] = val
b.randaoMixes = m
b.lock.Unlock()
}
b.lock.Lock()
defer b.lock.Unlock()
b.markFieldAsDirty(types.RandaoMixes)
b.addDirtyIndices(types.RandaoMixes, []uint64{idx})
return nil
}