state

package
v0.0.0-...-7c12c5a Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Oct 21, 2015 License: GPL-2.0, GPL-3.0 Imports: 18 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var NameRegCodec = wire.Codec{
	Encode: NameRegEncoder,
	Decode: NameRegDecoder,
}

Functions

func ExecBlock 

func ExecBlock(s *State, block *types.Block, blockPartsHeader types.PartSetHeader) error

NOTE: If an error occurs during block execution, state will be left at an invalid state. Copy the state before calling ExecBlock!

func ExecTx 

func ExecTx(blockCache *BlockCache, tx types.Tx, runCall bool, evc events.Fireable) (err error)

If the tx is invalid, an error will be returned. Unlike ExecBlock(), state will not be altered.

func HasPermission 

func HasPermission(state AccountGetter, acc *acm.Account, perm ptypes.PermFlag) bool

Get permission on an account or fall back to global value

func MakeGenesisStateFromFile 

func MakeGenesisStateFromFile(db dbm.DB, genDocFile string) (*GenesisDoc, *State)

func NameRegDecoder 

func NameRegDecoder(r io.Reader, n *int64, err *error) interface{}

func NameRegEncoder 

func NameRegEncoder(o interface{}, w io.Writer, n *int64, err *error)

func NewContractAddress 

func NewContractAddress(caller []byte, nonce int) []byte

Convenience function to return address of new contract

Types

type AccountGetter 

type AccountGetter interface {
	GetAccount(addr []byte) *acm.Account
}

type BlockCache 

type BlockCache struct {
	// contains filtered or unexported fields
}

The blockcache helps prevent unnecessary IAVLTree updates and garbage generation.

func NewBlockCache 

func NewBlockCache(backend *State) *BlockCache

func (*BlockCache) GetAccount 

func (cache *BlockCache) GetAccount(addr []byte) *acm.Account

func (*BlockCache) GetNameRegEntry 

func (cache *BlockCache) GetNameRegEntry(name string) *types.NameRegEntry

func (*BlockCache) GetStorage 

func (cache *BlockCache) GetStorage(addr Word256, key Word256) (value Word256)

func (*BlockCache) RemoveAccount 

func (cache *BlockCache) RemoveAccount(addr []byte)

func (*BlockCache) RemoveNameRegEntry 

func (cache *BlockCache) RemoveNameRegEntry(name string)

func (*BlockCache) SetStorage 

func (cache *BlockCache) SetStorage(addr Word256, key Word256, value Word256)

NOTE: Set value to zero to removed from the trie.

func (*BlockCache) State 

func (cache *BlockCache) State() *State

func (*BlockCache) Sync 

func (cache *BlockCache) Sync()

CONTRACT the updates are in deterministic order.

func (*BlockCache) UpdateAccount 

func (cache *BlockCache) UpdateAccount(acc *acm.Account)

func (*BlockCache) UpdateNameRegEntry 

func (cache *BlockCache) UpdateNameRegEntry(entry *types.NameRegEntry)

type InvalidTxError 

type InvalidTxError struct {
	Tx     types.Tx
	Reason error
}

func (InvalidTxError) Error 

func (txErr InvalidTxError) Error() string

type State 

type State struct {
	DB                   dbm.DB
	ChainID              string
	LastBlockHeight      int
	LastBlockHash        []byte
	LastBlockParts       types.PartSetHeader
	LastBlockTime        time.Time
	BondedValidators     *types.ValidatorSet
	LastBondedValidators *types.ValidatorSet
	UnbondingValidators  *types.ValidatorSet
	// contains filtered or unexported fields
}

NOTE: not goroutine-safe.

func LoadState 

func LoadState(db dbm.DB) *State

func MakeGenesisState 

func MakeGenesisState(db dbm.DB, genDoc *GenesisDoc) *State

func RandGenesisState 

func RandGenesisState(numAccounts int, randBalance bool, minBalance int64, numValidators int, randBonded bool, minBonded int64) (*State, []*acm.PrivAccount, []*types.PrivValidator)

func (*State) ComputeBlockStateHash 

func (s *State) ComputeBlockStateHash(block *types.Block) error

Mutates the block in place and updates it with new state hash.

func (*State) Copy 

func (s *State) Copy() *State

CONTRACT: Copy() is a cheap way to take a snapshot, as if State were copied by value.

func (*State) GetAccount 

func (s *State) GetAccount(address []byte) *acm.Account

Returns nil if account does not exist with given address. The returned Account is a copy, so mutating it has no side effects. Implements Statelike

func (*State) GetAccounts 

func (s *State) GetAccounts() merkle.Tree

The returned Account is a copy, so mutating it has no side effects.

func (*State) GetGasLimit 

func (s *State) GetGasLimit() int64

func (*State) GetNameRegEntry 

func (s *State) GetNameRegEntry(name string) *types.NameRegEntry

func (*State) GetNames 

func (s *State) GetNames() merkle.Tree

func (*State) GetValidatorInfo 

func (s *State) GetValidatorInfo(address []byte) *types.ValidatorInfo

The returned ValidatorInfo is a copy, so mutating it has no side effects.

func (*State) GetValidatorInfos 

func (s *State) GetValidatorInfos() merkle.Tree

func (*State) Hash 

func (s *State) Hash() []byte

Returns a hash that represents the state data, excluding Last*

func (*State) LoadStorage 

func (s *State) LoadStorage(hash []byte) (storage merkle.Tree)

func (*State) RemoveAccount 

func (s *State) RemoveAccount(address []byte) bool

Implements Statelike

func (*State) RemoveNameRegEntry 

func (s *State) RemoveNameRegEntry(name string) bool

func (*State) Save 

func (s *State) Save()

func (*State) SetAccounts 

func (s *State) SetAccounts(accounts merkle.Tree)

Set the accounts tree

func (*State) SetDB 

func (s *State) SetDB(db dbm.DB)

func (*State) SetFireable 

func (s *State) SetFireable(evc events.Fireable)

Implements events.Eventable. Typically uses events.EventCache

func (*State) SetNameReg 

func (s *State) SetNameReg(nameReg merkle.Tree)

Set the name reg tree

func (*State) SetValidatorInfo 

func (s *State) SetValidatorInfo(valInfo *types.ValidatorInfo) (updated bool)

Returns false if new, true if updated. The valInfo is copied before setting, so mutating it afterwards has no side effects.

func (*State) SetValidatorInfos 

func (s *State) SetValidatorInfos(validatorInfos merkle.Tree)

Set the validator infos tree

func (*State) UpdateAccount 

func (s *State) UpdateAccount(account *acm.Account) bool

The account is copied before setting, so mutating it afterwards has no side effects. Implements Statelike

func (*State) UpdateNameRegEntry 

func (s *State) UpdateNameRegEntry(entry *types.NameRegEntry) bool

type TxCache 

type TxCache struct {
	// contains filtered or unexported fields
}

func NewTxCache 

func NewTxCache(backend *BlockCache) *TxCache

func (*TxCache) CreateAccount 

func (cache *TxCache) CreateAccount(creator *vm.Account) *vm.Account

Creates a 20 byte address and bumps the creator's nonce.

func (*TxCache) GetAccount 

func (cache *TxCache) GetAccount(addr Word256) *vm.Account

func (*TxCache) GetStorage 

func (cache *TxCache) GetStorage(addr Word256, key Word256) Word256

func (*TxCache) RemoveAccount 

func (cache *TxCache) RemoveAccount(acc *vm.Account)

func (*TxCache) SetStorage 

func (cache *TxCache) SetStorage(addr Word256, key Word256, value Word256)

NOTE: Set value to zero to removed from the trie.

func (*TxCache) Sync 

func (cache *TxCache) Sync()

These updates do not have to be in deterministic order, the backend is responsible for ordering updates.

func (*TxCache) UpdateAccount 

func (cache *TxCache) UpdateAccount(acc *vm.Account)

type VMAccountState 

type VMAccountState interface {
	GetAccount(addr Word256) *vm.Account
	UpdateAccount(acc *vm.Account)
	RemoveAccount(acc *vm.Account)
	CreateAccount(creator *vm.Account) *vm.Account
}

Source Files

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