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78 lines
2.3 KiB
78 lines
2.3 KiB
package shardingconfig
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import (
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"math/big"
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"github.com/harmony-one/harmony/internal/genesis"
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)
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const (
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mainnetEpochBlock1 = 344064 // 21 * 2^14
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blocksPerShard = 16384 // 2^14
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mainnetV1Epoch = 1
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mainnetV2Epoch = 5
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mainnetVdfDifficulty = 50000 // This takes about 100s to finish the vdf
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mainnetConsensusRatio = float64(0.66)
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)
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// MainnetSchedule is the mainnet sharding configuration schedule.
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var MainnetSchedule mainnetSchedule
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type mainnetSchedule struct{}
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func (mainnetSchedule) InstanceForEpoch(epoch *big.Int) Instance {
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switch {
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case epoch.Cmp(big.NewInt(mainnetV2Epoch)) >= 0:
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// fifth resharding epoch around 08/06/2019 2:30am PDT
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return mainnetV2
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case epoch.Cmp(big.NewInt(mainnetV1Epoch)) >= 0:
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// first resharding epoch around 07/30/2019 10:30pm PDT
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return mainnetV1
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default: // genesis
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return mainnetV0
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}
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}
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func (mainnetSchedule) BlocksPerEpoch() uint64 {
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return blocksPerShard
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}
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func (ms mainnetSchedule) CalcEpochNumber(blockNum uint64) *big.Int {
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blocks := ms.BlocksPerEpoch()
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switch {
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case blockNum >= mainnetEpochBlock1:
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return big.NewInt(int64((blockNum-mainnetEpochBlock1)/blocks) + 1)
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default:
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return big.NewInt(0)
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}
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}
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func (ms mainnetSchedule) IsLastBlock(blockNum uint64) bool {
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blocks := ms.BlocksPerEpoch()
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switch {
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case blockNum < mainnetEpochBlock1-1:
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return false
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case blockNum == mainnetEpochBlock1-1:
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return true
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default:
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return ((blockNum-mainnetEpochBlock1)%blocks == blocks-1)
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}
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}
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func (ms mainnetSchedule) VdfDifficulty() int {
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return mainnetVdfDifficulty
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}
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// ConsensusRatio ratio of new nodes vs consensus total nodes
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func (ms mainnetSchedule) ConsensusRatio() float64 {
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return mainnetConsensusRatio
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}
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var mainnetReshardingEpoch = []*big.Int{big.NewInt(0), big.NewInt(mainnetV1Epoch), big.NewInt(mainnetV2Epoch)}
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var mainnetV0 = MustNewInstance(4, 150, 112, genesis.HarmonyAccounts, genesis.FoundationalNodeAccounts, mainnetReshardingEpoch)
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var mainnetV1 = MustNewInstance(4, 152, 112, genesis.HarmonyAccounts, genesis.FoundationalNodeAccountsV1, mainnetReshardingEpoch)
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var mainnetV2 = MustNewInstance(4, 200, 148, genesis.HarmonyAccounts, genesis.FoundationalNodeAccountsV2, mainnetReshardingEpoch)
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//var mainnetV2 = MustNewInstance(8, 200, 100)
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//var mainnet6400 = MustNewInstance(16, 400, 50)
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