downloader

package
v0.0.0-...-ddf2b42 Latest Latest
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 Go to latest Published: Sep 24, 2019 License: MIT Imports: 43 Imported by: 0

Documentation

Overview

Package downloader contains the manual full chain synchronisation.

Index

Constants

View Source 
const (
	IpfsHashLen                 = 46
	LastestBlockStroeNum        = 100    //100
	Cache2StoreHashMaxNum       = 216000 //每月产生的区块//测试 2000  //要改成月216000 //2628000 //24 hour* (3600 second /12 second）*365
	Cache1StoreCache2Num        = 6000   //500年的 //测试10000  //改成12000 1000年
	Cache2StoreBatchBlockMaxNum = 8800   //每年产生的//测试20     //要改为8800(24*365 )//约年 产生 的 300单位的区块
	Cache1StoreBatchCache2Num   = 500    //500年的//测试100    // 要改为1000  年
	BATCH_NUM                   = 300
	SingleBlockStore            = false
)

Variables

View Source 
var (
	MaxHashFetch    = 512 // Amount of hashes to be fetched per retrieval request
	MaxBlockFetch   = 20  //128 // Amount of blocks to be fetched per retrieval request
	MaxHeaderFetch  = 32  //100 //192 // Amount of block headers to be fetched per retrieval request
	MaxSkeletonSize = 32  //100 //128 // Number of header fetches to need for a skeleton assembly
	MaxBodyFetch    = 128 // Amount of block bodies to be fetched per retrieval request
	MaxReceiptFetch = 64  //256 // Amount of transaction receipts to allow fetching per request
	MaxStateFetch   = 384 // Amount of node state values to allow fetching per request

	MaxForkAncestry = 3 * params.EpochDuration // Maximum chain reorganisation

)
View Source 
var (
	QSingleBlockStore    = false
	NumBlockInfoFromIpfs = 0
)
View Source 
var BodyBatchFlag uint64 = 0x23456781
View Source 
var HeadBatchFlag uint64 = 0x12345678
View Source 
var ReceiptBatchFlag uint64 = 0x34567812
View Source 
var SnapshootNumber uint64
View Source 
var StopIpfsHandler = StopIpfs{}

Functions

func CheckDirAndCreate 

func CheckDirAndCreate(dir string) error

func CheckIpfsStatus 

func CheckIpfsStatus(err error)

func CompressFile 

func CompressFile(Dst string, Src string) error

func DeCompressFile 

func DeCompressFile(Dst string, Src string) error

解压文件Src到Dst

func GetFileSize 

func GetFileSize(filename string) int64

func GetIpfsMode 

func GetIpfsMode() bool

func IpfsGetBlockByHash 

func IpfsGetBlockByHash(strHash string, compress bool) (*os.File, error)

IpfsGetBlockByHash get block

func IpfsGetFileCache2ByHash 

func IpfsGetFileCache2ByHash(strhash, objfileName string) (*os.File, bool, error)

func IpfsStartTimer 

func IpfsStartTimer(hash string)

func IpfsStopTimer 

func IpfsStopTimer()

func RandomSlice 

func RandomSlice(arr []*peerConnection)

func ReadJsFile 

func ReadJsFile(filename string, v interface{}) error

ReadJsFile serialize

func RestartIpfsDaemon 

func RestartIpfsDaemon()

func StopIpfsProcess 

func StopIpfsProcess()

func TimeoutExec 

func TimeoutExec(str string)

func WriteJsFile 

func WriteJsFile(filename string, v interface{}) error

WriteJsFile serialize

Types

type BatchBlockSt 

type BatchBlockSt struct {
	ExpectBeginNum     uint64
	ExpectBeginNumhash string //common.Hash
	// contains filtered or unexported fields
}

type BlockChain 

type BlockChain interface {
	LightChain

	// HasBlock verifies a block's presence in the local chain.
	HasBlock(common.Hash, uint64) bool

	// GetBlockByHash retrieves a block from the local chain.
	GetBlockByHash(common.Hash) *types.Block

	// CurrentBlock retrieves the head block from the local chain.
	CurrentBlock() *types.Block

	// CurrentFastBlock retrieves the head fast block from the local chain.
	CurrentFastBlock() *types.Block

	// FastSyncCommitHead directly commits the head block to a certain entity.
	FastSyncCommitHead(common.Hash) error

	// InsertChain inserts a batch of blocks into the local chain.
	InsertChain(types.Blocks, int) (int, error)

	// InsertReceiptChain inserts a batch of receipts into the local chain.
	InsertReceiptChain(types.Blocks) (int, error)

	//lb ipfs
	SetbSendIpfsFlg(bool)
	GetStoreBlockInfo() *prque.Prque //types.Blocks //(storeBlock types.Blocks)
	GetIpfsQMux()
	GetIpfsQUnMux()

	GetSuperBlockSeq() (uint64, error)
	GetSuperBlockNum() (uint64, error)
	GetSuperBlockInfo() (*mc.SuperBlkCfg, error)
	DPOSEngine(version []byte) consensus.DPOSEngine

	GetCurrentHash() common.Hash

	Genesis() *types.Block

	GetGraphByHash(hash common.Hash) (*mc.TopologyGraph, *mc.ElectGraph, error)
	GetBroadcastAccounts(blockHash common.Hash) ([]common.Address, error)
	GetVersionSuperAccounts(blockHash common.Hash) ([]common.Address, error)
	GetBlockSuperAccounts(blockHash common.Hash) ([]common.Address, error)
	GetBroadcastIntervalByHash(blockHash common.Hash) (*mc.BCIntervalInfo, error)
	GetA0AccountFromAnyAccount(account common.Address, blockHash common.Hash) (common.Address, common.Address, error)
	SynSnapshot(blockNum uint64, hash string, filePath string) (uint64, bool)
	SetSnapshotParam(period uint64, start uint64)
	PrintSnapshotAccountMsg(blockNum uint64, hash string, filePath string)
	SaveSnapshot(blockNum uint64, period uint64, NewBlocknum uint64)
}

BlockChain encapsulates functions required to sync a (full or fast) blockchain.

type BlockIpfs 

type BlockIpfs struct {
	Flag             int
	BlockNum         uint64
	Headeripfs       *types.Header
	Unclesipfs       []*types.Header
	Transactionsipfs []types.CurrencyBlock //CoinSelfTransaction //Transactions//SelfTransaction?????
	Receipt          []types.CoinReceipts
}

type BlockIpfsReq 

type BlockIpfsReq struct {
	ReqPendflg int
	Flag       uint64 //int //1 单个, 2 批量 //快照时携带区块number

	HeadReqipfs *types.Header
	// contains filtered or unexported fields
}

type BlockStore 

type BlockStore struct {
	Numberstore map[uint64]NumberMapingCoupledHash
}

type Cache1StoreCfg 

type Cache1StoreCfg struct {
	OriginBlockNum    uint64
	CurrentBlockNum   uint64
	Cache2FileNum     uint32
	StCahce2Hash      [Cache1StoreCache2Num]string
	StBatchCahce2Hash [Cache1StoreBatchCache2Num]string
}

cache1

type Caches2CfgMap 

type Caches2CfgMap struct {
	CurCacheBeignNum uint64
	CurCacheBlockNum uint64
	NumHashStore     uint32
	//CurOfCache1Pos	 uint32
	MapList BlockStore
}

new cache2

type DoneEvent 

type DoneEvent struct{}

type DownloadFileInfo 

type DownloadFileInfo struct {
	Downloadflg          bool
	IpfsPath             string
	StrIPFSServerInfo    string
	StrIPFSServer2Info   string
	StrIPFSServer3Info   string
	StrIPFSServer4Info   string
	StrIPFSServer5Info   string
	StrIPFSServer6Info   string
	StrIPFSServer7Info   string
	StrIPFSServer8Info   string
	StrIPFSServer9Info   string
	StrIPFSServer10Info  string
	PrimaryDescription   string
	SecondaryDescription string
}
var IpfsInfo DownloadFileInfo

type DownloadRetry 

type DownloadRetry struct {
	ReqPendflg int
	// contains filtered or unexported fields
}

type Downloader 

type Downloader struct {
	IpfsMode bool //liubo ipfs

	WaitSnapshoot chan int
	CheckNum      int
	CheckWaitNum  int
	// contains filtered or unexported fields
}

func New 

func New(mode SyncMode, stateDb mandb.Database, mux *event.TypeMux, chain BlockChain, lightchain LightChain, dropPeer peerDropFn, getBlock blockQRetrievalFn) *Downloader

New creates a new downloader to fetch hashes and blocks from remote peers.

func (*Downloader) AddNewBatchBlockToIpfs 

func (d *Downloader) AddNewBatchBlockToIpfs()

批量存储区块

func (*Downloader) AddStateRootInfoToIpfs 

func (d *Downloader) AddStateRootInfoToIpfs(blockNum uint64, strheadHash string, filePath string)

func (*Downloader) BatchBlockStoreInit 

func (d *Downloader) BatchBlockStoreInit(bNeedClear bool)

func (*Downloader) BatchStoreAllBlock 

func (d *Downloader) BatchStoreAllBlock(stBlock *types.BlockAllSt) bool

func (*Downloader) Cancel 

func (d *Downloader) Cancel()

Cancel aborts all of the operations and waits for all download goroutines to finish before returning.

func (*Downloader) ClearDirectoryContent 

func (d *Downloader) ClearDirectoryContent()

func (*Downloader) ClearIpfsQueue 

func (d *Downloader) ClearIpfsQueue()

func (*Downloader) DGetIPFSBlock 

func (d *Downloader) DGetIPFSBlock(strHash string)

func (*Downloader) DGetIPFSSecondcache 

func (d *Downloader) DGetIPFSSecondcache(strHash string)

func (*Downloader) DGetIPFSfirstcache 

func (d *Downloader) DGetIPFSfirstcache()

func (*Downloader) DGetIPFSsnap 

func (d *Downloader) DGetIPFSsnap(strHash string)

func (*Downloader) DeliverBodies 

func (d *Downloader) DeliverBodies(id string, transactions [][]types.CurrencyBlock, uncles [][]*types.Header) (err error)

DeliverBodies injects a new batch of block bodies received from a remote node.

func (*Downloader) DeliverHeaders 

func (d *Downloader) DeliverHeaders(id string, headers []*types.Header) (err error)

DeliverHeaders injects a new batch of block headers received from a remote node into the download schedule.

func (*Downloader) DeliverNodeData 

func (d *Downloader) DeliverNodeData(id string, data [][]byte) (err error)

DeliverNodeData injects a new batch of node state data received from a remote node.

func (*Downloader) DeliverReceipts 

func (d *Downloader) DeliverReceipts(id string, receipts [][]types.CoinReceipts) (err error)

DeliverReceipts injects a new batch of receipts received from a remote node.

func (*Downloader) DownloadBatchBlock 

func (d *Downloader) DownloadBatchBlock(headhash string, headNumber uint64, realBeginNum uint64, pendflag int, index int) int

func (*Downloader) GetBlockAndAnalysisSend 

func (d *Downloader) GetBlockAndAnalysisSend(blockhash string, stype string) bool

func (*Downloader) GetBlockByIPFS 

func (d *Downloader) GetBlockByIPFS(strHash string)

func (*Downloader) GetBlockHashFromCache 

func (d *Downloader) GetBlockHashFromCache(headhash string, coinstr string, headNumber uint64) bool

func (*Downloader) GetfirstcacheByIPFS 

func (d *Downloader) GetfirstcacheByIPFS()

func (*Downloader) GetsanpByIPFS 

func (d *Downloader) GetsanpByIPFS(strHash string)

func (*Downloader) GetsecondcacheByIPFS 

func (d *Downloader) GetsecondcacheByIPFS(strHash string)

func (*Downloader) IPfsDirectoryUpdate 

func (d *Downloader) IPfsDirectoryUpdate() error

IPfsDirectoryUpdate

func (*Downloader) IpfsDownloadInit 

func (d *Downloader) IpfsDownloadInit() error

func (*Downloader) IpfsDownloadTestInit 

func (d *Downloader) IpfsDownloadTestInit() error

func (*Downloader) IpfsProcessRcvHead 

func (d *Downloader) IpfsProcessRcvHead()

区块同步

func (*Downloader) IpfsSynInsertNewBlockHashToLastest 

func (d *Downloader) IpfsSynInsertNewBlockHashToLastest(curLastestInfo *LastestBlcokCfg, blockNum uint64, strheadHash string, blockhash string) error

IpfsSynInsertNewBlockHashToLastest

func (*Downloader) IpfsSyncGetFirstCache 

func (d *Downloader) IpfsSyncGetFirstCache(index int) (*Cache1StoreCfg, error)

IpfsSyncGetFirstCache

func (*Downloader) IpfsSyncGetLatestBlock 

func (d *Downloader) IpfsSyncGetLatestBlock(index int) (*LastestBlcokCfg, uint64, error)

IpfsSyncGetLatestBlock

func (*Downloader) IpfsSyncGetSecondCache 

func (d *Downloader) IpfsSyncGetSecondCache()

IpfsSyncGetSecondCache

func (*Downloader) IpfsSyncSaveBatchSecondCache 

func (d *Downloader) IpfsSyncSaveBatchSecondCache(newFlg bool, blockNum uint64, headHash string, snapshootNum uint64, allhash string, file *os.File) error

func (*Downloader) IpfsSyncSaveLatestBlock 

func (d *Downloader) IpfsSyncSaveLatestBlock()

IpfsSyncSaveLatestBlock

func (*Downloader) IpfsSyncSaveSecondCache 

func (d *Downloader) IpfsSyncSaveSecondCache(newFlg bool, blockNum uint64, strheadHash string, fhash string, file *os.File) error

IpfsSyncSaveSecondCache

func (*Downloader) IpfsTimeoutTask 

func (d *Downloader) IpfsTimeoutTask()

func (*Downloader) IpsfAddNewBatchBlockToCache 

func (d *Downloader) IpsfAddNewBatchBlockToCache(stCfg *Cache1StoreCfg, blockNum uint64, snapshootNum uint64, strheadHash string, allhash string) error

IpsfAddNewBlockToCache

func (*Downloader) IpsfAddNewBlockBatchToCache 

func (d *Downloader) IpsfAddNewBlockBatchToCache(stCfg *Cache1StoreCfg, blockList []listBlockInfo) error

func (*Downloader) IpsfAddNewBlockToCache 

func (d *Downloader) IpsfAddNewBlockToCache(stCfg *Cache1StoreCfg, blockNum uint64, headHash string, fhash string) error

IpsfAddNewBlockToCache

func (*Downloader) ParseBatchBody 

func (d *Downloader) ParseBatchBody(batchblockhash string, beginReqNumber uint64, realBeginNum uint64, flg int) bool

func (*Downloader) ParseBatchHeader 

func (d *Downloader) ParseBatchHeader(batchblockhash string, beginReqNumber uint64) bool

func (*Downloader) ParseBatchReceipt 

func (d *Downloader) ParseBatchReceipt(batchblockhash string, beginReqNumber uint64, realBeginNum uint64) bool

func (*Downloader) ParseMPTstatus 

func (d *Downloader) ParseMPTstatus(batchblockhash string, beginReqNumber uint64, realstatusNumber uint64) bool

func (*Downloader) PrintSnapshotAccountMsg 

func (d *Downloader) PrintSnapshotAccountMsg(blockNum uint64, hash string, filePath string)

func (*Downloader) ProcessSnapshoot 

func (d *Downloader) ProcessSnapshoot(number uint64, hash string) error

func (*Downloader) Progress 

func (d *Downloader) Progress() matrix.SyncProgress

Progress retrieves the synchronisation boundaries, specifically the origin block where synchronisation started at (may have failed/suspended); the block or header sync is currently at; and the latest known block which the sync targets.

In addition, during the state download phase of fast synchronisation the number of processed and the total number of known states are also returned. Otherwise these are zero.

func (*Downloader) RecvBlockSaveToipfs 

func (d *Downloader) RecvBlockSaveToipfs(blockqueue *prque.Prque) error

RecvBlockToDeal

func (*Downloader) RecvBlockToDeal 

func (d *Downloader) RecvBlockToDeal(newBlock *types.Block) error

RecvBlockToDeal

func (*Downloader) RegisterLightPeer 

func (d *Downloader) RegisterLightPeer(id string, version int, peer LightPeer) error

RegisterLightPeer injects a light client peer, wrapping it so it appears as a regular peer.

func (*Downloader) RegisterPeer 

func (d *Downloader) RegisterPeer(id string, version int, peer Peer) error

RegisterPeer injects a new download peer into the set of block source to be used for fetching hashes and blocks from.

func (*Downloader) SaveSnapshootStatus 

func (d *Downloader) SaveSnapshootStatus(blockNum uint64, strheadHash string, filePath string) bool

func (*Downloader) SetSnapshootNum 

func (d *Downloader) SetSnapshootNum(number uint64)

func (*Downloader) SetbStoreSendIpfsFlg 

func (d *Downloader) SetbStoreSendIpfsFlg(flg bool)

func (*Downloader) StatusSnapshootDeal 

func (d *Downloader) StatusSnapshootDeal()

func (*Downloader) SynBlockFormBlockchain 

func (d *Downloader) SynBlockFormBlockchain()

func (*Downloader) SynDealblock 

func (d *Downloader) SynDealblock()

存储过程

func (*Downloader) SynIPFSCheck 

func (d *Downloader) SynIPFSCheck()

func (*Downloader) SynOrignDownload 

func (d *Downloader) SynOrignDownload(out interface{}, flag int, blockNum uint64)

func (*Downloader) SyncBlockFromIpfs 

func (d *Downloader) SyncBlockFromIpfs(strHeadHash string, headNumber uint64, coin string, index int) int

下载区块 SyncBlockFromIpfs

func (*Downloader) Synchronise 

func (d *Downloader) Synchronise(id string, head common.Hash, td *big.Int, sbs uint64, sbh uint64, mode SyncMode) error

Synchronise tries to sync up our local block chain with a remote peer, both adding various sanity checks as well as wrapping it with various log entries.

func (*Downloader) Synchronising 

func (d *Downloader) Synchronising() bool

Synchronising returns whether the downloader is currently retrieving blocks.

func (*Downloader) Terminate 

func (d *Downloader) Terminate()

Terminate interrupts the downloader, canceling all pending operations. The downloader cannot be reused after calling Terminate.

func (*Downloader) TestSnapshoot 

func (d *Downloader) TestSnapshoot()

func (*Downloader) UnregisterPeer 

func (d *Downloader) UnregisterPeer(id string, flg int) error

UnregisterPeer remove a peer from the known list, preventing any action from the specified peer. An effort is also made to return any pending fetches into the queue.

func (*Downloader) WaitBlockInfoFromIpfs 

func (d *Downloader) WaitBlockInfoFromIpfs()

liubo ipfs

type FailedEvent 

type FailedEvent struct{ Err error }

type FakePeer 

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

FakePeer is a mock downloader peer that operates on a local database instance instead of being an actual live node. It's useful for testing and to implement sync commands from an existing local database.

func NewFakePeer 

func NewFakePeer(id string, db mandb.Database, hc *core.HeaderChain, dl *Downloader) *FakePeer

NewFakePeer creates a new mock downloader peer with the given data sources.

func (*FakePeer) Head 

func (p *FakePeer) Head() (common.Hash, *big.Int, uint64, uint64, uint64, uint64)

Head implements downloader.Peer, returning the current head hash and number of the best known header.

func (*FakePeer) RequestBodies 

func (p *FakePeer) RequestBodies(hashes []common.Hash) error

RequestBodies implements downloader.Peer, returning a batch of block bodies corresponding to the specified block hashes.

func (*FakePeer) RequestHeadersByHash 

func (p *FakePeer) RequestHeadersByHash(hash common.Hash, amount int, skip int, reverse bool) error

RequestHeadersByHash implements downloader.Peer, returning a batch of headers defined by the origin hash and the associated query parameters.

func (*FakePeer) RequestHeadersByNumber 

func (p *FakePeer) RequestHeadersByNumber(number uint64, amount int, skip int, reverse bool) error

RequestHeadersByNumber implements downloader.Peer, returning a batch of headers defined by the origin number and the associated query parameters.

func (*FakePeer) RequestNodeData 

func (p *FakePeer) RequestNodeData(hashes []common.Hash) error

RequestNodeData implements downloader.Peer, returning a batch of state trie nodes corresponding to the specified trie hashes.

func (*FakePeer) RequestReceipts 

func (p *FakePeer) RequestReceipts(hashes []common.Hash) error

RequestReceipts implements downloader.Peer, returning a batch of transaction receipts corresponding to the specified block hashes.

type GetIpfsCache 

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

type Hash 

type Hash []byte //[IpfsHashLen]byte

func IpfsAddNewFile 

func IpfsAddNewFile(filePath string, compress bool) (Hash, int64, error)

IpfsAddNewFile

type IPFSBlockStat 

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

type IPfsDownloader 

type IPfsDownloader struct {
	BIpfsIsRunning      bool
	IpfsDealBlocking    int32
	StrIpfspeerID       string
	StrIpfsSecondpeerID string
	StrIPFSLocationPath string
	StrIPFSServerInfo   string
	StrIPFSExecName     string
	HeaderIpfsCh        chan []BlockIpfsReq //[]*types.Header
	//	BlockRcvCh          chan *types.Block
	//runQuit      chan struct{}
	//timeOutCh    chan struct{}
	DownMutex       *sync.Mutex
	DownRetrans     *list.List //*prque.Prque // []DownloadRetry prque.New()
	BatchStBlock    *BatchBlockSt
	SnapshootInfoCh chan SnapshootReq
}

type LastestBlcokCfg 

type LastestBlcokCfg struct {
	CurrentNum uint64
	HashNum    int
	MapList    BlockStore
}

lastest 100

type LightChain 

type LightChain interface {
	// HasHeader verifies a header's presence in the local chain.
	HasHeader(common.Hash, uint64) bool

	// GetHeaderByHash retrieves a header from the local chain.
	GetHeaderByHash(common.Hash) *types.Header

	// CurrentHeader retrieves the head header from the local chain.
	CurrentHeader() *types.Header

	// GetTd returns the total difficulty of a local block.
	GetTd(common.Hash, uint64) *big.Int

	// InsertHeaderChain inserts a batch of headers into the local chain.
	InsertHeaderChain([]*types.Header, int) (int, error)

	// Rollback removes a few recently added elements from the local chain.
	Rollback([]common.Hash)
}

LightChain encapsulates functions required to synchronise a light chain.

type LightPeer 

type LightPeer interface {
	Head() (hash common.Hash, td *big.Int, sbs uint64, sbHash uint64, bt uint64, bn uint64)
	RequestHeadersByHash(common.Hash, int, int, bool) error
	RequestHeadersByNumber(uint64, int, int, bool) error
}

LightPeer encapsulates the methods required to synchronise with a remote light peer.

type NumberMapingCoupledHash 

type NumberMapingCoupledHash struct {
	//Blockhash map[common.Hash]string
	Blockhash map[string]string
}

type Peer 

type Peer interface {
	LightPeer
	RequestBodies([]common.Hash) error
	RequestReceipts([]common.Hash) error
	RequestNodeData([]common.Hash) error
}

Peer encapsulates the methods required to synchronise with a remote full peer.

type PublicDownloaderAPI 

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

PublicDownloaderAPI provides an API which gives information about the current synchronisation status. It offers only methods that operates on data that can be available to anyone without security risks.

func NewPublicDownloaderAPI 

func NewPublicDownloaderAPI(d *Downloader, m *event.TypeMux) *PublicDownloaderAPI

NewPublicDownloaderAPI create a new PublicDownloaderAPI. The API has an internal event loop that listens for events from the downloader through the global event mux. In case it receives one of these events it broadcasts it to all syncing subscriptions that are installed through the installSyncSubscription channel.

func (*PublicDownloaderAPI) SubscribeSyncStatus 

func (api *PublicDownloaderAPI) SubscribeSyncStatus(status chan interface{}) *SyncStatusSubscription

SubscribeSyncStatus creates a subscription that will broadcast new synchronisation updates. The given channel must receive interface values, the result can either

func (*PublicDownloaderAPI) Syncing 

func (api *PublicDownloaderAPI) Syncing(ctx context.Context) (*rpc.Subscription, error)

Syncing provides information when this nodes starts synchronising with the Matrix network and when it's finished.

type SnapshootReq 

type SnapshootReq struct {
	BlockNumber uint64
	Hashstr     string
	FilePath    string
}

type StartEvent 

type StartEvent struct{}

type StopIpfs 

type StopIpfs struct {
	Stop func()
}

type StoreIpfsCache 

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

type SyncMode 

type SyncMode int

SyncMode represents the synchronisation mode of the downloader. 

const (
	FullSync  SyncMode = iota // Synchronise the entire blockchain history from full blocks
	FastSync                  // Quickly download the headers, full sync only at the chain head
	LightSync                 // Download only the headers and terminate afterwards
)

func (SyncMode) IsValid 

func (mode SyncMode) IsValid() bool

func (SyncMode) MarshalText 

func (mode SyncMode) MarshalText() ([]byte, error)

func (SyncMode) String 

func (mode SyncMode) String() string

String implements the stringer interface.

func (*SyncMode) UnmarshalText 

func (mode *SyncMode) UnmarshalText(text []byte) error

type SyncStatusSubscription 

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

SyncStatusSubscription represents a syncing subscription.

func (*SyncStatusSubscription) Unsubscribe 

func (s *SyncStatusSubscription) Unsubscribe()

Unsubscribe uninstalls the subscription from the DownloadAPI event loop. The status channel that was passed to subscribeSyncStatus isn't used anymore after this method returns.

type SyncingResult 

type SyncingResult struct {
	Syncing bool                `json:"syncing"`
	Status  matrix.SyncProgress `json:"status"`
}

SyncingResult provides information about the current synchronisation status for this node.

Source Files

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