/
db_manager_stakinginfo.go
48 lines (42 loc) · 1.97 KB
/
db_manager_stakinginfo.go
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// Copyright 2020 The klaytn Authors
// This file is part of the klaytn library.
//
// The klaytn library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The klaytn library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the klaytn library. If not, see <http://www.gnu.org/licenses/>.
package database
// ReadStakingInfo reads staking information from database. It returns
// (StakingInfo, nil) if it succeeds to read and (nil, error) if it fails.
// StakingInfo is stored in MiscDB.
// Be sure to use the right block number before calling this function.
// (Refer to CalcStakingBlockNumber() in params/governance_params.go)
func (dbm *databaseManager) ReadStakingInfo(blockNum uint64) ([]byte, error) {
db := dbm.getDatabase(MiscDB)
key := makeKey(stakingInfoPrefix, blockNum)
stakingInfo, err := db.Get(key)
if err != nil {
return nil, err
}
return stakingInfo, nil
}
// WriteStakingInfo writes staking information to database. It returns
// nil if it succeeds to write and error if it fails.
// Key should be the blockNum of stakingIfo. Value is marshaled
// stakingInfo. StakingInfo is stored in MiscDB.
// stakingInfo should be type StakingInfo defined in reward/staking_info.go
// Be sure to use the right block number before calling this function.
// (Refer to CalcStakingBlockNumber() in params/governance_params.go)
func (dbm *databaseManager) WriteStakingInfo(blockNum uint64, stakingInfo []byte) error {
db := dbm.getDatabase(MiscDB)
key := makeKey(stakingInfoPrefix, blockNum)
return db.Put(key, stakingInfo)
}