storage

package
v0.3.8 Latest Latest
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 Go to latest Published: May 17, 2019 License: GPL-3.0 Imports: 17 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	// ErrDisposed is returned when an operation is performed on a disposed
	// queue.
	ErrDisposed = errors.New(`queue: disposed`)

	// ErrTimeout is returned when an applicable queue operation times out.
	ErrTimeout = errors.New(`queue: poll timed out`)

	// ErrEmptyQueue is returned when an non-applicable queue operation was called
	// due to the queue's empty item state
	ErrEmptyQueue = errors.New(`queue: empty queue`)
)

Functions

This section is empty.

Types

type BadgerStore 

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

func NewBadgerStore 

func NewBadgerStore(dir string) (*BadgerStore, error)

func (*BadgerStore) AddNodeOperation 

func (s *BadgerStore) AddNodeOperation(tx *common.VersionedTransaction, timestamp, threshold uint64) error

func (*BadgerStore) CacheGetTransaction 

func (s *BadgerStore) CacheGetTransaction(hash crypto.Hash) (*common.VersionedTransaction, error)

func (*BadgerStore) CacheListTransactions 

func (s *BadgerStore) CacheListTransactions(hook func(tx *common.VersionedTransaction) error) error

func (*BadgerStore) CachePutTransaction 

func (s *BadgerStore) CachePutTransaction(tx *common.VersionedTransaction) error

func (*BadgerStore) CheckDepositInput 

func (s *BadgerStore) CheckDepositInput(deposit *common.DepositData, tx crypto.Hash) error

func (*BadgerStore) CheckGenesisLoad 

func (s *BadgerStore) CheckGenesisLoad() (bool, error)

func (*BadgerStore) CheckGhost 

func (s *BadgerStore) CheckGhost(key crypto.Key) (bool, error)

func (*BadgerStore) CheckTransactionFinalization added in v0.1.0 

func (s *BadgerStore) CheckTransactionFinalization(hash crypto.Hash) (bool, error)

func (*BadgerStore) CheckTransactionInNode 

func (s *BadgerStore) CheckTransactionInNode(nodeId, hash crypto.Hash) (bool, error)

func (*BadgerStore) Close 

func (store *BadgerStore) Close() error

func (*BadgerStore) LoadGenesis 

func (s *BadgerStore) LoadGenesis(rounds []*common.Round, snapshots []*common.SnapshotWithTopologicalOrder, transactions []*common.VersionedTransaction) error

func (*BadgerStore) LockDepositInput 

func (s *BadgerStore) LockDepositInput(deposit *common.DepositData, tx crypto.Hash, fork bool) error

func (*BadgerStore) LockMintInput 

func (s *BadgerStore) LockMintInput(mint *common.MintData, tx crypto.Hash, fork bool) error

func (*BadgerStore) LockUTXO 

func (s *BadgerStore) LockUTXO(hash crypto.Hash, index int, tx crypto.Hash, fork bool) error

func (*BadgerStore) QueueAppendSnapshot 

func (s *BadgerStore) QueueAppendSnapshot(peerId crypto.Hash, snap *common.Snapshot, finalized bool) error

func (*BadgerStore) QueueInfo 

func (s *BadgerStore) QueueInfo() (uint64, uint64, uint64, error)

func (*BadgerStore) QueuePollSnapshots 

func (s *BadgerStore) QueuePollSnapshots(hook func(peerId crypto.Hash, snap *common.Snapshot) error)

func (*BadgerStore) ReadAsset added in v0.1.14 

func (s *BadgerStore) ReadAsset(id crypto.Hash) (*common.Asset, error)

func (*BadgerStore) ReadConsensusNodes 

func (s *BadgerStore) ReadConsensusNodes() []*common.Node

func (*BadgerStore) ReadDomains 

func (s *BadgerStore) ReadDomains() []common.Domain

func (*BadgerStore) ReadLastMintDistribution 

func (s *BadgerStore) ReadLastMintDistribution(group string) (*common.MintDistribution, error)
func (s *BadgerStore) ReadLink(from, to crypto.Hash) (uint64, error)

func (*BadgerStore) ReadMintDistributions 

func (s *BadgerStore) ReadMintDistributions(group string, offset, count uint64) ([]*common.MintDistribution, []*common.VersionedTransaction, error)

func (*BadgerStore) ReadRound 

func (s *BadgerStore) ReadRound(hash crypto.Hash) (*common.Round, error)

func (*BadgerStore) ReadSnapshot 

func (s *BadgerStore) ReadSnapshot(hash crypto.Hash) (*common.SnapshotWithTopologicalOrder, error)

func (*BadgerStore) ReadSnapshotWithTransactionsSinceTopology 

func (s *BadgerStore) ReadSnapshotWithTransactionsSinceTopology(topologyOffset, count uint64) ([]*common.SnapshotWithTopologicalOrder, []*common.VersionedTransaction, error)

func (*BadgerStore) ReadSnapshotsForNodeRound 

func (s *BadgerStore) ReadSnapshotsForNodeRound(nodeId crypto.Hash, round uint64) ([]*common.SnapshotWithTopologicalOrder, error)

func (*BadgerStore) ReadSnapshotsSinceTopology 

func (s *BadgerStore) ReadSnapshotsSinceTopology(topologyOffset, count uint64) ([]*common.SnapshotWithTopologicalOrder, error)

func (*BadgerStore) ReadTransaction 

func (s *BadgerStore) ReadTransaction(hash crypto.Hash) (*common.VersionedTransaction, error)

func (*BadgerStore) ReadUTXO 

func (s *BadgerStore) ReadUTXO(hash crypto.Hash, index int) (*common.UTXOWithLock, error)

func (*BadgerStore) RemoveGraphEntries 

func (s *BadgerStore) RemoveGraphEntries(prefix string) error

func (*BadgerStore) StartNewRound 

func (s *BadgerStore) StartNewRound(node crypto.Hash, number uint64, references *common.RoundLink, finalStart uint64) error

func (*BadgerStore) StateGet 

func (s *BadgerStore) StateGet(key string, val interface{}) (bool, error)

func (*BadgerStore) StateSet 

func (s *BadgerStore) StateSet(key string, val interface{}) error

func (*BadgerStore) TopologySequence 

func (s *BadgerStore) TopologySequence() uint64

func (*BadgerStore) UpdateEmptyHeadRound 

func (s *BadgerStore) UpdateEmptyHeadRound(node crypto.Hash, number uint64, references *common.RoundLink) error

func (*BadgerStore) ValidateGraphEntries 

func (s *BadgerStore) ValidateGraphEntries() (int, int, error)

func (*BadgerStore) WriteAsset added in v0.1.14 

func (s *BadgerStore) WriteAsset(a *common.Asset) error

func (*BadgerStore) WriteSnapshot 

func (s *BadgerStore) WriteSnapshot(snap *common.SnapshotWithTopologicalOrder) error

func (*BadgerStore) WriteTransaction 

func (s *BadgerStore) WriteTransaction(ver *common.VersionedTransaction) error

type PeerSnapshot 

type PeerSnapshot struct {
	PeerId   crypto.Hash
	Snapshot *common.Snapshot
	// contains filtered or unexported fields
}

type Queue 

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

func NewQueue 

func NewQueue() *Queue

func (*Queue) Dispose 

func (q *Queue) Dispose()

func (*Queue) PopCache 

func (q *Queue) PopCache() (*PeerSnapshot, error)

func (*Queue) PopFinal 

func (q *Queue) PopFinal() (*PeerSnapshot, error)

func (*Queue) PutCache 

func (q *Queue) PutCache(ps *PeerSnapshot) error

func (*Queue) PutFinal 

func (q *Queue) PutFinal(ps *PeerSnapshot) error

type RingBuffer 

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

RingBuffer is a MPMC buffer that achieves threadsafety with CAS operations only. A put on full or get on empty call will block until an item is put or retrieved. Calling Dispose on the RingBuffer will unblock any blocked threads with an error. This buffer is similar to the buffer described here: http://www.1024cores.net/home/lock-free-algorithms/queues/bounded-mpmc-queue with some minor additions.

func NewRingBuffer 

func NewRingBuffer(size uint64) *RingBuffer

NewRingBuffer will allocate, initialize, and return a ring buffer with the specified size.

func (*RingBuffer) Cap 

func (rb *RingBuffer) Cap() uint64

Cap returns the capacity of this ring buffer.

func (*RingBuffer) Dispose 

func (rb *RingBuffer) Dispose()

Dispose will dispose of this queue and free any blocked threads in the Put and/or Get methods. Calling those methods on a disposed queue will return an error.

func (*RingBuffer) IsDisposed 

func (rb *RingBuffer) IsDisposed() bool

IsDisposed will return a bool indicating if this queue has been disposed.

func (*RingBuffer) Len 

func (rb *RingBuffer) Len() uint64

Len returns the number of items in the queue.

func (*RingBuffer) Offer 

func (rb *RingBuffer) Offer(item interface{}) (bool, error)

Offer adds the provided item to the queue if there is space. If the queue is full, this call will return false. An error will be returned if the queue is disposed.

func (*RingBuffer) Poll 

func (rb *RingBuffer) Poll(block bool) (interface{}, error)

Poll will return the next item in the queue. This call will block if the queue is empty. This call will unblock when an item is added to the queue, Dispose is called on the queue, or the timeout is reached. An error will be returned if the queue is disposed or a timeout occurs. A non-positive timeout will block indefinitely.

func (*RingBuffer) Put 

func (rb *RingBuffer) Put(item interface{}) error

Put adds the provided item to the queue. If the queue is full, this call will block until an item is added to the queue or Dispose is called on the queue. An error will be returned if the queue is disposed.

type Store 

type Store interface {
	Close() error

	StateGet(key string, val interface{}) (bool, error)
	StateSet(key string, val interface{}) error

	CheckGenesisLoad() (bool, error)
	LoadGenesis(rounds []*common.Round, snapshots []*common.SnapshotWithTopologicalOrder, transactions []*common.VersionedTransaction) error
	ReadConsensusNodes() []*common.Node
	AddNodeOperation(tx *common.VersionedTransaction, timestamp, threshold uint64) error
	CheckTransactionFinalization(hash crypto.Hash) (bool, error)
	CheckTransactionInNode(nodeId, hash crypto.Hash) (bool, error)
	ReadTransaction(hash crypto.Hash) (*common.VersionedTransaction, error)
	WriteTransaction(tx *common.VersionedTransaction) error
	StartNewRound(node crypto.Hash, number uint64, references *common.RoundLink, finalStart uint64) error
	UpdateEmptyHeadRound(node crypto.Hash, number uint64, references *common.RoundLink) error
	TopologySequence() uint64

	ReadUTXO(hash crypto.Hash, index int) (*common.UTXOWithLock, error)
	LockUTXO(hash crypto.Hash, index int, tx crypto.Hash, fork bool) error
	CheckDepositInput(deposit *common.DepositData, tx crypto.Hash) error
	LockDepositInput(deposit *common.DepositData, tx crypto.Hash, fork bool) error
	CheckGhost(key crypto.Key) (bool, error)
	ReadSnapshot(hash crypto.Hash) (*common.SnapshotWithTopologicalOrder, error)
	ReadSnapshotsSinceTopology(offset, count uint64) ([]*common.SnapshotWithTopologicalOrder, error)
	ReadSnapshotWithTransactionsSinceTopology(topologyOffset, count uint64) ([]*common.SnapshotWithTopologicalOrder, []*common.VersionedTransaction, error)
	ReadSnapshotsForNodeRound(nodeIdWithNetwork crypto.Hash, round uint64) ([]*common.SnapshotWithTopologicalOrder, error)
	ReadRound(hash crypto.Hash) (*common.Round, error)
	ReadLink(from, to crypto.Hash) (uint64, error)
	WriteSnapshot(*common.SnapshotWithTopologicalOrder) error
	ReadDomains() []common.Domain

	QueueInfo() (uint64, uint64, uint64, error)
	QueueAppendSnapshot(peerId crypto.Hash, snap *common.Snapshot, finalized bool) error
	QueuePollSnapshots(hook func(peerId crypto.Hash, snap *common.Snapshot) error)
	CachePutTransaction(tx *common.VersionedTransaction) error
	CacheGetTransaction(hash crypto.Hash) (*common.VersionedTransaction, error)
	CacheListTransactions(hook func(tx *common.VersionedTransaction) error) error

	ReadLastMintDistribution(group string) (*common.MintDistribution, error)
	LockMintInput(mint *common.MintData, tx crypto.Hash, fork bool) error
	ReadMintDistributions(group string, offset, count uint64) ([]*common.MintDistribution, []*common.VersionedTransaction, error)

	RemoveGraphEntries(prefix string) error
	ValidateGraphEntries() (int, int, error)

	WriteAsset(a *common.Asset) error
	ReadAsset(id crypto.Hash) (*common.Asset, error)
}

Source Files

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