tendermint/state/genesis.go

119 lines
2.9 KiB
Go

package state
import (
"io/ioutil"
"time"
"github.com/tendermint/tendermint/account"
"github.com/tendermint/tendermint/binary"
. "github.com/tendermint/tendermint/common"
dbm "github.com/tendermint/tendermint/db"
"github.com/tendermint/tendermint/merkle"
"github.com/tendermint/tendermint/types"
)
type GenesisAccount struct {
Address []byte
Amount uint64
}
type GenesisValidator struct {
PubKey account.PubKeyEd25519
Amount uint64
UnbondTo []GenesisAccount
}
type GenesisDoc struct {
GenesisTime time.Time
Accounts []GenesisAccount
Validators []GenesisValidator
}
func GenesisDocFromJSON(jsonBlob []byte) (genState *GenesisDoc) {
var err error
binary.ReadJSON(&genState, jsonBlob, &err)
if err != nil {
panic(Fmt("Couldn't read GenesisDoc: %v", err))
}
return
}
func MakeGenesisStateFromFile(db dbm.DB, genDocFile string) *State {
jsonBlob, err := ioutil.ReadFile(genDocFile)
if err != nil {
panic(Fmt("Couldn't read GenesisDoc file: %v", err))
}
genDoc := GenesisDocFromJSON(jsonBlob)
return MakeGenesisState(db, genDoc)
}
func MakeGenesisState(db dbm.DB, genDoc *GenesisDoc) *State {
if len(genDoc.Validators) == 0 {
Exit(Fmt("The genesis file has no validators"))
}
if genDoc.GenesisTime.IsZero() {
genDoc.GenesisTime = time.Now()
}
// Make accounts state tree
accounts := merkle.NewIAVLTree(binary.BasicCodec, account.AccountCodec, defaultAccountsCacheCapacity, db)
for _, genAcc := range genDoc.Accounts {
acc := &account.Account{
Address: genAcc.Address,
PubKey: account.PubKeyNil{},
Sequence: 0,
Balance: genAcc.Amount,
}
accounts.Set(acc.Address, acc)
}
// Make validatorInfos state tree && validators slice
validatorInfos := merkle.NewIAVLTree(binary.BasicCodec, ValidatorInfoCodec, 0, db)
validators := make([]*Validator, len(genDoc.Validators))
for i, val := range genDoc.Validators {
pubKey := val.PubKey
address := pubKey.Address()
// Make ValidatorInfo
valInfo := &ValidatorInfo{
Address: address,
PubKey: pubKey,
UnbondTo: make([]*types.TxOutput, len(val.UnbondTo)),
FirstBondHeight: 0,
FirstBondAmount: val.Amount,
}
for i, unbondTo := range val.UnbondTo {
valInfo.UnbondTo[i] = &types.TxOutput{
Address: unbondTo.Address,
Amount: unbondTo.Amount,
}
}
validatorInfos.Set(address, valInfo)
// Make validator
validators[i] = &Validator{
Address: address,
PubKey: pubKey,
VotingPower: val.Amount,
}
}
// IAVLTrees must be persisted before copy operations.
accounts.Save()
validatorInfos.Save()
return &State{
DB: db,
LastBlockHeight: 0,
LastBlockHash: nil,
LastBlockParts: types.PartSetHeader{},
LastBlockTime: genDoc.GenesisTime,
BondedValidators: NewValidatorSet(validators),
LastBondedValidators: NewValidatorSet(nil),
UnbondingValidators: NewValidatorSet(nil),
accounts: accounts,
validatorInfos: validatorInfos,
}
}