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89 lines
3.6 KiB
89 lines
3.6 KiB
package node
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import (
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"encoding/hex"
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"math/big"
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"github.com/harmony-one/harmony/core/types"
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"github.com/harmony-one/harmony/contracts/structs"
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"github.com/harmony-one/harmony/core"
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"github.com/ethereum/go-ethereum/common"
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"github.com/harmony-one/harmony/internal/utils"
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"github.com/ethereum/go-ethereum/common/hexutil"
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)
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//constants related to staking
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//The first four bytes of the call data for a function call specifies the function to be called.
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//It is the first (left, high-order in big-endian) four bytes of the Keccak-256 (SHA-3)
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//Refer: https://solidity.readthedocs.io/en/develop/abi-spec.html
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const (
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funcSingatureBytes = 4
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lockPeriodInEpochs = 3 // This should be in sync with contracts/StakeLockContract.sol
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)
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// UpdateStakingList updates staking list from the given StakeInfo query result.
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func (node *Node) UpdateStakingList(stakeInfoReturnValue *structs.StakeInfoReturnValue) {
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utils.GetLogInstance().Info("Updating staking list", "contractState", stakeInfoReturnValue)
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if stakeInfoReturnValue == nil {
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return
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}
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node.CurrentStakes = make(map[common.Address]*structs.StakeInfo)
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for i, addr := range stakeInfoReturnValue.LockedAddresses {
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blockNum := stakeInfoReturnValue.BlockNums[i]
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lockPeriodCount := stakeInfoReturnValue.LockPeriodCounts[i]
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startEpoch := core.GetEpochFromBlockNumber(blockNum.Uint64())
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curEpoch := core.GetEpochFromBlockNumber(node.Blockchain().CurrentBlock().NumberU64())
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if startEpoch == curEpoch {
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continue // The token are counted into stakes at the beginning of next epoch.
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}
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// True if the token is still staked within the locking period.
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if curEpoch-startEpoch <= lockPeriodCount.Uint64()*lockPeriodInEpochs {
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blsPubKey := types.BlsPublicKey{}
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copy(blsPubKey[:32], stakeInfoReturnValue.BlsPubicKeys1[i][:])
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copy(blsPubKey[32:64], stakeInfoReturnValue.BlsPubicKeys2[i][:])
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copy(blsPubKey[64:96], stakeInfoReturnValue.BlsPubicKeys3[i][:])
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node.CurrentStakes[addr] = &structs.StakeInfo{
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Account: addr,
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BlsPublicKey: blsPubKey,
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BlockNum: blockNum,
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LockPeriodCount: lockPeriodCount,
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Amount: stakeInfoReturnValue.Amounts[i],
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}
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}
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}
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}
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func (node *Node) printStakingList() {
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utils.GetLogInstance().Info("\n")
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utils.GetLogInstance().Info("CURRENT STAKING INFO [START] ------------------------------------")
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for addr, stakeInfo := range node.CurrentStakes {
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utils.GetLogInstance().Info("", "Address", addr, "BlsPubKey", hex.EncodeToString(stakeInfo.BlsPublicKey[:]), "BlockNum", stakeInfo.BlockNum, "lockPeriodCount", stakeInfo.LockPeriodCount, "amount", stakeInfo.Amount)
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}
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utils.GetLogInstance().Info("CURRENT STAKING INFO [END} ------------------------------------")
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utils.GetLogInstance().Info("\n")
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}
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//The first four bytes of the call data for a function call specifies the function to be called.
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//It is the first (left, high-order in big-endian) four bytes of the Keccak-256 (SHA-3)
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//Refer: https://solidity.readthedocs.io/en/develop/abi-spec.html
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func decodeStakeCall(getData []byte) int64 {
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value := new(big.Int)
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value.SetBytes(getData[funcSingatureBytes:]) //Escape the method call.
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return value.Int64()
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}
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//The first four bytes of the call data for a function call specifies the function to be called.
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//It is the first (left, high-order in big-endian) four bytes of the Keccak-256 (SHA-3)
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//Refer: https://solidity.readthedocs.io/en/develop/abi-spec.html
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//gets the function signature from data.
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func decodeFuncSign(data []byte) string {
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funcSign := hexutil.Encode(data[:funcSingatureBytes]) //The function signature is first 4 bytes of data in ethereum
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return funcSign
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}
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