blockchain

package
v0.0.0-...-a4757fd Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jul 13, 2018 License: Apache-2.0, Apache-2.0 Imports: 19 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	BlockchainChannel = byte(0x40)
)

Variables

View Source 
var (
	ErrBlockIsNil      = errors.New("the chain has no block data")
	ErrBranchNameUsed  = errors.New("blockchain:branch name has been used")
	ErrConvertToFuture = errors.New("can't revert to future height")
	ErrRevertBackup    = errors.New("revert from backup,not find data")
)
View Source 
var ErrNotFound = errors.New("leveldb not found")

Functions

func BlockStoreDB 

func BlockStoreDB(config *cfg.Viper) dbm.DB

func LoadBlockStore 

func LoadBlockStore(blockStoreDB dbm.DB, height def.INT) (*pbtypes.Block, *pbtypes.BlockMeta, *pbtypes.BlockID)

Types

type BlockExecuterFunc 

type BlockExecuterFunc func(*agtypes.BlockCache, *agtypes.PartSet, *agtypes.CommitCache) error

type BlockPool 

type BlockPool struct {
	BaseService
	// contains filtered or unexported fields
}

func NewBlockPool 

func NewBlockPool(logger *zap.Logger, start def.INT, requestsCh chan<- BlockRequest, timeoutsCh chan<- string) *BlockPool

func (*BlockPool) AddBlock 

func (pool *BlockPool) AddBlock(peerID string, block *pbtypes.Block, blockSize int)

TODO: ensure that blocks come in order for each peer.

func (*BlockPool) GetStatus 

func (pool *BlockPool) GetStatus() (height def.INT, numPending int32, lenRequesters int)

func (*BlockPool) IsCaughtUp 

func (pool *BlockPool) IsCaughtUp() bool

TODO: relax conditions, prevent abuse.

func (*BlockPool) OnStart 

func (pool *BlockPool) OnStart() error

func (*BlockPool) OnStop 

func (pool *BlockPool) OnStop()

func (*BlockPool) PeekTwoBlocks 

func (pool *BlockPool) PeekTwoBlocks() (first *agtypes.BlockCache, second *agtypes.BlockCache)

We need to see the second block's Commit to validate the first block. So we peek two blocks at a time. The caller will verify the commit.

func (*BlockPool) PopRequest 

func (pool *BlockPool) PopRequest()

Pop the first block at pool.height It must have been validated by 'second'.Commit from PeekTwoBlocks().

func (*BlockPool) RedoRequest 

func (pool *BlockPool) RedoRequest(height def.INT)

Invalidates the block at pool.height, Remove the peer and redo request from others.

func (*BlockPool) RemovePeer 

func (pool *BlockPool) RemovePeer(peerID string)

func (*BlockPool) SetPeerHeight 

func (pool *BlockPool) SetPeerHeight(peerID string, height def.INT)

Sets the peer's alleged blockchain height.

type BlockRequest 

type BlockRequest struct {
	Height def.INT
	PeerID string
}

type BlockStore 

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

Simple low level store for blocks.

There are three types of information stored:

  • BlockMeta: Meta information about each block
  • Block part: Parts of each block, aggregated w/ PartSet
  • Commit: The commit part of each block, for gossiping precommit votes

Currently the precommit signatures are duplicated in the Block parts as well as the Commit. In the future this may change, perhaps by moving the Commit data outside the Block.

Panics indicate probable corruption in the data

func NewBlockStore 

func NewBlockStore(db dbm.DB) *BlockStore

func (*BlockStore) GetReader 

func (bs *BlockStore) GetReader(key []byte) io.Reader

func (*BlockStore) Height 

func (bs *BlockStore) Height() def.INT

Height() returns the last known contiguous block height.

func (*BlockStore) LoadBlock 

func (bs *BlockStore) LoadBlock(height def.INT) *agtypes.BlockCache

func (*BlockStore) LoadBlockCommit 

func (bs *BlockStore) LoadBlockCommit(height def.INT) *agtypes.CommitCache

The +2/3 and other Precommit-votes for block at `height`. This Commit comes from block.LastCommit for `height+1`.

func (*BlockStore) LoadBlockMeta 

func (bs *BlockStore) LoadBlockMeta(height def.INT) *pbtypes.BlockMeta

func (*BlockStore) LoadBlockPart 

func (bs *BlockStore) LoadBlockPart(height def.INT, index int) *pbtypes.Part

func (*BlockStore) LoadSeenCommit 

func (bs *BlockStore) LoadSeenCommit(height def.INT) *agtypes.CommitCache

NOTE: the Precommit-vote heights are for the block at `height`

func (*BlockStore) SaveBlock 

func (bs *BlockStore) SaveBlock(block *agtypes.BlockCache, blockParts *agtypes.PartSet, seenCommit *agtypes.CommitCache)

blockParts: Must be parts of the block seenCommit: The +2/3 precommits that were seen which committed at height. 

If all the nodes restart after committing a block,
we need this to reload the precommits to catch-up nodes to the
most recent height.  Otherwise they'd stall at H-1.

type BlockStoreStateJSON 

type BlockStoreStateJSON struct {
	Height       def.INT
	OriginHeight def.INT
}

func LoadBlockStoreStateJSON 

func LoadBlockStoreStateJSON(db dbm.DB) BlockStoreStateJSON

func (BlockStoreStateJSON) Save 

func (bsj BlockStoreStateJSON) Save(db dbm.DB)

func (BlockStoreStateJSON) SaveByKey 

func (bsj BlockStoreStateJSON) SaveByKey(key []byte, db dbm.DB)

type BlockVerifierFunc 

type BlockVerifierFunc func(pbtypes.BlockID, def.INT, *agtypes.CommitCache) error

type BlockchainReactor 

type BlockchainReactor struct {
	p2p.BaseReactor
	// contains filtered or unexported fields
}

BlockchainReactor handles long-term catchup syncing.

func NewBlockchainReactor 

func NewBlockchainReactor(logger *zap.Logger, config *viper.Viper, lastBlockHeight def.INT, store *BlockStore, fastSync bool) *BlockchainReactor

func (*BlockchainReactor) AddPeer 

func (bcR *BlockchainReactor) AddPeer(peer *p2p.Peer)

Implements Reactor

func (*BlockchainReactor) BroadcastStatusRequest 

func (bcR *BlockchainReactor) BroadcastStatusRequest() error

func (*BlockchainReactor) BroadcastStatusResponse 

func (bcR *BlockchainReactor) BroadcastStatusResponse() error

func (*BlockchainReactor) GetChannels 

func (bcR *BlockchainReactor) GetChannels() []*p2p.ChannelDescriptor

Implements Reactor

func (*BlockchainReactor) OnStart 

func (bcR *BlockchainReactor) OnStart() error

func (*BlockchainReactor) OnStop 

func (bcR *BlockchainReactor) OnStop()

func (*BlockchainReactor) Receive 

func (bcR *BlockchainReactor) Receive(chID byte, src *p2p.Peer, msgBytes []byte)

Implements Reactor

func (*BlockchainReactor) RemovePeer 

func (bcR *BlockchainReactor) RemovePeer(peer *p2p.Peer, reason interface{})

Implements Reactor

func (*BlockchainReactor) SetBlockExecuter 

func (bcR *BlockchainReactor) SetBlockExecuter(x BlockExecuterFunc)

func (*BlockchainReactor) SetBlockVerifier 

func (bcR *BlockchainReactor) SetBlockVerifier(v BlockVerifierFunc)

func (*BlockchainReactor) SetEventSwitch 

func (bcR *BlockchainReactor) SetEventSwitch(evsw agtypes.EventSwitch)

implements events.Eventable

func (*BlockchainReactor) SetStateValidator 

func (bcR *BlockchainReactor) SetStateValidator(f ValidatorSetorFunc)

type NonEmptyBlockIterator 

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

func NewNonEmptyBlockIterator 

func NewNonEmptyBlockIterator(store *BlockStore) *NonEmptyBlockIterator

func (*NonEmptyBlockIterator) HasMore 

func (i *NonEmptyBlockIterator) HasMore() bool

func (*NonEmptyBlockIterator) Next 

func (i *NonEmptyBlockIterator) Next() *agtypes.BlockCache

type StoreTool 

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

func (*StoreTool) BackupLastBlock 

func (st *StoreTool) BackupLastBlock(branchName string) error

func (*StoreTool) DelBackup 

func (st *StoreTool) DelBackup(branchName string)

func (*StoreTool) Init 

func (st *StoreTool) Init(config *cfg.Viper) error

func (*StoreTool) LastHeight 

func (st *StoreTool) LastHeight() def.INT

func (*StoreTool) LoadBlock 

func (st *StoreTool) LoadBlock(height def.INT) (*pbtypes.Block, *pbtypes.BlockMeta, *pbtypes.BlockID)

func (*StoreTool) RevertFromBackup 

func (st *StoreTool) RevertFromBackup(branchName string) error

func (*StoreTool) SaveNewLastBlock 

func (st *StoreTool) SaveNewLastBlock(toHeight def.INT) error

type ValidatorSetorFunc 

type ValidatorSetorFunc func(*agtypes.BlockCache)

Source Files

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