state

package
v0.12.1 Latest Latest
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 Go to latest Published: Jul 4, 2017 License: GPL-3.0 Imports: 21 Imported by: 0

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Index

Constants

This section is empty.

Variables

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

Functions

func DecodeNameRegEntry 

func DecodeNameRegEntry(entryBytes []byte) *core_types.NameRegEntry

func ExecTx 

func ExecTx(blockCache *BlockCache, tx txs.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 *int, err *error) interface{}

func NameRegEncoder 

func NameRegEncoder(o interface{}, w io.Writer, n *int, 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) *core_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 *core_types.NameRegEntry)

type InvalidTxError 

type InvalidTxError struct {
	Tx     txs.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
	// 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 (*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. 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) GetGenesisDoc 

func (s *State) GetGenesisDoc() (*GenesisDoc, error)

func (*State) GetNameRegEntry 

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

func (*State) GetNames 

func (s *State) GetNames() 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) 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 *core_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
}

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