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 `json:"address"` Amount uint64 `json:"amount"` } type GenesisValidator struct { PubKey account.PubKeyEd25519 `json:"pub_key"` Amount uint64 `json:"amount"` UnbondTo []GenesisAccount `json:"unbond_to"` } type GenesisDoc struct { GenesisTime time.Time `json:"genesis_time"` ChainID string `json:"chain_id"` Accounts []GenesisAccount `json:"accounts"` Validators []GenesisValidator `json:"validators"` } 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: nil, 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, } } // Make namereg tree nameReg := merkle.NewIAVLTree(binary.BasicCodec, NameRegCodec, 0, db) // TODO: add names to genesis.json // IAVLTrees must be persisted before copy operations. accounts.Save() validatorInfos.Save() nameReg.Save() return &State{ DB: db, ChainID: genDoc.ChainID, LastBlockHeight: 0, LastBlockHash: nil, LastBlockParts: types.PartSetHeader{}, LastBlockTime: genDoc.GenesisTime, BondedValidators: NewValidatorSet(validators), LastBondedValidators: NewValidatorSet(nil), UnbondingValidators: NewValidatorSet(nil), accounts: accounts, validatorInfos: validatorInfos, nameReg: nameReg, } }