[quorum] Staked quorum member (#1819)
* [quorum] Factor out single vote & provide for staked quorum vote * [quorum] Pass ShardID to decider via cb * [quorum] Move ShardIDProvider higher, fix nil mistake * [quorum] ReadAllSignatures optimization * [quorum] Safer way to read over map, then to slice * [quorum] Address PR comments - naming changespull/1821/head
Edgar Aroutiounian
5 years ago
committed by
GitHub
parent
e6a4fbea4f
commit
55c9386e4c
@ -0,0 +1,78 @@ |
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package quorum |
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import ( |
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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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common2 "github.com/harmony-one/harmony/internal/common" |
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"github.com/harmony-one/harmony/internal/utils" |
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// "github.com/harmony-one/harmony/staking/effective"
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) |
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type uniformVoteWeight struct { |
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SignatureReader |
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DependencyInjectionWriter |
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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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// func (v *uniformVoteWeight) SetShardIDProvider(p func() (uint32, error)) {
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// v.p = p
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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.QuorumThreshold().Int64() |
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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() *big.Int { |
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return big.NewInt(v.ParticipantsCount()*2/3 + 1) |
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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) UpdateVotingPower(effective.StakeKeeper) {
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// NO-OP do not add anything here
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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 []common2.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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@ -0,0 +1,75 @@ |
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package quorum |
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import ( |
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"math/big" |
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"github.com/harmony-one/bls/ffi/go/bls" |
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"github.com/harmony-one/harmony/internal/common" |
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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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var ( |
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twoThirds = numeric.NewDec(2).QuoInt64(3).Int |
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) |
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type stakedVoter struct { |
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isActive, isHarmonyNode bool |
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effective numeric.Dec |
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} |
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type stakedVoteWeight struct { |
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SignatureReader |
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DependencyInjectionWriter |
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// EPOS based staking
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validatorStakes map[[shard.PublicKeySizeInBytes]byte]stakedVoter |
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totalEffectiveStakedAmount *big.Int |
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} |
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// Policy ..
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func (v *stakedVoteWeight) Policy() Policy { |
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return SuperMajorityStake |
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} |
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// We must maintain 2/3 quoroum, so whatever is 2/3 staked amount,
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// we divide that out & you
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// IsQuorumAchieved ..
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func (v *stakedVoteWeight) IsQuorumAchieved(p Phase) bool { |
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// TODO Implement this logic
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return true |
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} |
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// QuorumThreshold ..
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func (v *stakedVoteWeight) QuorumThreshold() *big.Int { |
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return new(big.Int).Mul(v.totalEffectiveStakedAmount, twoThirds) |
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} |
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// RewardThreshold ..
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func (v *stakedVoteWeight) IsRewardThresholdAchieved() bool { |
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// TODO Implement
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return false |
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} |
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// HACK
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var ( |
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hSentinel = big.NewInt(0) |
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hEffectiveSentinel = numeric.ZeroDec() |
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) |
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// Award ..
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func (v *stakedVoteWeight) Award( |
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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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// TODO Implement
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return nil |
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} |
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// UpdateVotingPower called only at epoch change, prob need to move to CalculateShardState
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// func (v *stakedVoteWeight) UpdateVotingPower(keeper effective.StakeKeeper) {
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// TODO Implement
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// }
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func (v *stakedVoteWeight) ToggleActive(*bls.PublicKey) bool { |
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// TODO Implement
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return true |
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} |
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