snapshot

package
v0.0.0-...-4502c18 Latest Latest
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 Go to latest Published: Oct 26, 2018 License: GPL-3.0 Imports: 13 Imported by: 2

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Index

Constants

This section is empty.

Variables

View Source 
var (
	// ErrSSnotFound returned is snapshot not found.
	ErrSSNotFound = errors.New("SnapShot not found")
)

Functions

This section is empty.

Types

type Balance 

type Balance struct {
	Address types.Hash `json:"addr"`
	Balance types.Coin `json:"blnc"`
	LastTx  types.Hash `json:"ltx"`
}

func BalanceByAccount 

func BalanceByAccount(acc *account.Account) Balance

func (Balance) GetBytes 

func (b Balance) GetBytes() []byte

type BalanceProcessor 

type BalanceProcessor interface {
	Validate(b Balance) error
}

type DefaultSnapShotProcessor 

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

func NewSnapShotProcessor 

func NewSnapShotProcessor(v VoteProcessor, b BalanceProcessor) *DefaultSnapShotProcessor

func (*DefaultSnapShotProcessor) Balance 

func (sp *DefaultSnapShotProcessor) Balance() BalanceProcessor

func (*DefaultSnapShotProcessor) Vote 

func (sp *DefaultSnapShotProcessor) Vote() VoteProcessor

type Signature 

type Signature struct {
	PublicKey types.Hash
	Signature types.Hash
}

Signature is type for compare signature and publickey for multisigns.

type SnapShot 

type SnapShot struct {
	Version            uint        `json:"version"`
	Id                 types.Hash  `json:"id"`
	Height             uint32      `json:"height"`
	PreviousSnapShot   types.Hash  `json:"previousSnapShot"`
	GeneratorPublicKey types.Hash  `json:"generatorPublicKey"`
	Votes              []Vote      `json:"votes"`
	Balances           []Balance   `json:"balances"`
	Timestamp          int64       `json:"timestamp"`
	Signatures         []Signature `json:"signaturess"`
	Signature          types.Hash  `json:"signature"`
	Nonce              uint32      `json:"nonce"`
	// contains filtered or unexported fields
}

SnapShot is an alternative to blocks, stores only the latest balances after account changes and information on voting for delegates.

It is the only synchronous chain that must be synchronized with all network members.

func (*SnapShot) AddBalance 

func (s *SnapShot) AddBalance(b Balance)

AddVote supplements the unissued balance for further release.

func (*SnapShot) AddVote 

func (s *SnapShot) AddVote(v Vote)

AddVote supplements the unissued vote for further release.

func (*SnapShot) GetBytes 

func (s *SnapShot) GetBytes() []byte

GetBytes is a implementation interface Byter.

func (*SnapShot) GetId 

func (s *SnapShot) GetId() types.Hash

func (*SnapShot) Mine 

func (s *SnapShot) Mine()

type SnapShotFactory 

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

SnapShotFactory is releasing new snapshots for delegates.

func NewSnapShotFactory 

func NewSnapShotFactory(sm *SnapShotManager,
	am *account.AccountManager, ch *chain.ChainHelper, db *leveldb.Db) *SnapShotFactory

NewSnapShotFactory creates new factory. Please note that the factory needs a manager.

func (*SnapShotFactory) SetDelegate 

func (sf *SnapShotFactory) SetDelegate(kp *types.KeyPair)

SetDelegate sets delegate account for release new snapshots.

func (*SnapShotFactory) Start 

func (sf *SnapShotFactory) Start()

Start starting the factory process.

func (*SnapShotFactory) Stop 

func (sf *SnapShotFactory) Stop()

Start stopping the factory process.

type SnapShotManager 

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

SnapShotManager controls the work of snapshots, but does not release them into the network, see the SnapShotFactory.

func NewSnapShotManager 

func NewSnapShotManager(db *leveldb.Db) *SnapShotManager

NewSnapShotManager creates manager and empty SnapShot.

func (*SnapShotManager) AddBalance 

func (sm *SnapShotManager) AddBalance(b Balance)

func (*SnapShotManager) AddVote 

func (sm *SnapShotManager) AddVote(v Vote)

func (*SnapShotManager) Clear 

func (sm *SnapShotManager) Clear() *SnapShotManager

Clear clears SnapShot data for manager.

func (*SnapShotManager) Commit 

func (sm *SnapShotManager) Commit() error

Commit saves any changes in unconfirmed snapshot.

func (*SnapShotManager) CreateVote 

func (sm *SnapShotManager) CreateVote(kp *types.KeyPair,
	delegate types.Hash) Vote

AddVote creates and vote.

func (*SnapShotManager) Get 

func (sm *SnapShotManager) Get(id []byte) (*SnapShot, error)

Get finds snapshot in database.

func (*SnapShotManager) Last 

func (sm *SnapShotManager) Last() (*SnapShot, error)

Last gets last snapshot

func (*SnapShotManager) List 

func (sm *SnapShotManager) List(offset int, limit int) []*SnapShot

List gets snapshot list in range.

func (*SnapShotManager) Release 

func (sm *SnapShotManager) Release(pair *types.KeyPair) (lastSnapShot, error)

Release confirms and releases a new snapshot.

func (*SnapShotManager) Write 

func (sm *SnapShotManager) Write(ss *SnapShot) (lastSnapShot, error)

Write writes snapshot to the database.

type SnapShotProcessor 

type SnapShotProcessor interface {
	Vote() VoteProcessor
	Balance() BalanceProcessor
}

type Vote 

type Vote struct {
	Voter     types.Hash `json:"voter"`
	Delegate  types.Hash `json:"delegate"`
	Timestamp int64      `json:"timestamp"`
	Signature types.Hash `json:"signature"`
}

func (Vote) GetBytes 

func (v Vote) GetBytes() []byte

type VoteProcessor 

type VoteProcessor interface {
	Validate(v Vote) error
	Process(v Vote, am *account.AccountManager) error
	Commit() error
}

Source Files

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