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99 lines
2.6 KiB
99 lines
2.6 KiB
package quorum
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import (
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"encoding/json"
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/harmony-one/bls/ffi/go/bls"
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"github.com/harmony-one/harmony/internal/utils"
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"github.com/harmony-one/harmony/numeric"
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"github.com/harmony-one/harmony/shard"
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)
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type uniformVoteWeight struct {
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DependencyInjectionWriter
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DependencyInjectionReader
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SignatureReader
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}
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// Policy ..
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func (v *uniformVoteWeight) Policy() Policy {
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return SuperMajorityVote
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}
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// IsQuorumAchieved ..
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func (v *uniformVoteWeight) IsQuorumAchieved(p Phase) bool {
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r := v.SignersCount(p) >= v.TwoThirdsSignersCount()
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utils.Logger().Info().Str("phase", p.String()).
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Int64("signers-count", v.SignersCount(p)).
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Int64("threshold", v.QuorumThreshold().Int64()).
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Int64("participants", v.ParticipantsCount()).
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Msg("Quorum details")
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return r
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}
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// QuorumThreshold ..
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func (v *uniformVoteWeight) QuorumThreshold() numeric.Dec {
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return numeric.NewDec(v.TwoThirdsSignersCount())
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}
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// RewardThreshold ..
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func (v *uniformVoteWeight) IsRewardThresholdAchieved() bool {
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return v.SignersCount(Commit) >= (v.ParticipantsCount() * 9 / 10)
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}
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func (v *uniformVoteWeight) SetVoters(
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shard.SlotList,
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) (*TallyResult, error) {
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// NO-OP do not add anything here
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return nil, nil
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}
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// ToggleActive for uniform vote is a no-op, always says that voter is active
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func (v *uniformVoteWeight) ToggleActive(*bls.PublicKey) bool {
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// NO-OP do not add anything here
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return true
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}
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// Award ..
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func (v *uniformVoteWeight) Award(
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// Here hook is the callback which gets the amount the earner is due in just reward
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// up to the hook to do side-effects like write the statedb
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Pie *big.Int, earners []common.Address, hook func(earner common.Address, due *big.Int),
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) *big.Int {
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payout := big.NewInt(0)
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last := big.NewInt(0)
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count := big.NewInt(int64(len(earners)))
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for i, account := range earners {
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cur := big.NewInt(0)
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cur.Mul(Pie, big.NewInt(int64(i+1))).Div(cur, count)
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diff := big.NewInt(0).Sub(cur, last)
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hook(common.Address(account), diff)
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payout = big.NewInt(0).Add(payout, diff)
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last = cur
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}
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return payout
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}
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func (v *uniformVoteWeight) ShouldSlash(k shard.BlsPublicKey) bool {
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// No-op, no semantic meaning in one-slot-one-vote
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return false
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}
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func (v *uniformVoteWeight) JSON() string {
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s, _ := v.ShardIDProvider()()
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type t struct {
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Policy string `json"policy"`
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ShardID uint32 `json:"shard-id"`
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Count int `json:"count"`
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Participants []string `json:"committee-members"`
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}
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members := v.DumpParticipants()
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b1, _ := json.Marshal(t{v.Policy().String(), s, len(members), members})
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return string(b1)
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}
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