block_sync

Documentation

Index

• Constants
• type BlockCache
  • func NewBlockCache() *BlockCache
• type BlockInfo
• type BlockSyncMgr
  • func NewBlockSyncMgr(server p2p.P2P, ld *ledger.Ledger) *BlockSyncMgr
  • func (this *BlockSyncMgr) OnAddNode(nodeId p2pComm.PeerId)
  • func (this *BlockSyncMgr) OnBlockReceive(fromID p2pComm.PeerId, blockSize uint32, block *types.Block, ...)
  • func (this *BlockSyncMgr) OnDelNode(nodeId p2pComm.PeerId)
  • func (this *BlockSyncMgr) OnHeaderReceive(fromID p2pComm.PeerId, headers []*types.Header)
  • func (this *BlockSyncMgr) Start()
  • func (this *BlockSyncMgr) Stop()
• type NodeWeight
  • func NewNodeWeight(id p2pComm.PeerId) *NodeWeight
  • func (this *NodeWeight) AddErrorRespCnt()
  • func (this *NodeWeight) AddTimeoutCnt()
  • func (this *NodeWeight) AppendNewReqtime()
  • func (this *NodeWeight) AppendNewSpeed(s float32)
  • func (this *NodeWeight) GetErrorRespCnt() int
  • func (this *NodeWeight) Weight() float32
• type NodeWeights
  • func (nws NodeWeights) Len() int
  • func (nws NodeWeights) Less(i, j int) bool
  • func (nws NodeWeights) Swap(i, j int)
• type SyncFlightInfo
  • func NewSyncFlightInfo(height uint32, nodeId p2pComm.PeerId) *SyncFlightInfo
  • func (this *SyncFlightInfo) GetFailedTimes(nodeId p2pComm.PeerId) int
  • func (this *SyncFlightInfo) GetNodeId() p2pComm.PeerId
  • func (this *SyncFlightInfo) GetStartTime() time.Time
  • func (this *SyncFlightInfo) GetTotalFailedTimes() int
  • func (this *SyncFlightInfo) MarkFailedNode()
  • func (this *SyncFlightInfo) ResetStartTime()
  • func (this *SyncFlightInfo) SetNodeId(nodeId p2pComm.PeerId)

Constants

const (
	SYNC_MAX_HEADER_FORWARD_SIZE = 5000       //keep CurrentHeaderHeight - CurrentBlockHeight <= SYNC_MAX_HEADER_FORWARD_SIZE
	SYNC_MAX_FLIGHT_HEADER_SIZE  = 1          //Number of headers on flight
	SYNC_MAX_FLIGHT_BLOCK_SIZE   = 50         //Number of blocks on flight
	SYNC_MAX_BLOCK_CACHE_SIZE    = 500        //Cache size of block wait to commit to ledger
	SYNC_HEADER_REQUEST_TIMEOUT  = 2          //s, Request header timeout time. If header haven't receive after SYNC_HEADER_REQUEST_TIMEOUT second, retry
	SYNC_BLOCK_REQUEST_TIMEOUT   = 2          //s, Request block timeout time. If block haven't received after SYNC_BLOCK_REQUEST_TIMEOUT second, retry
	SYNC_NEXT_BLOCK_TIMES        = 3          //Request times of next height block
	SYNC_NEXT_BLOCKS_HEIGHT      = 2          //for current block height plus next
	SYNC_NODE_RECORD_SPEED_CNT   = 3          //Record speed count for accuracy
	SYNC_NODE_RECORD_TIME_CNT    = 3          //Record request time  for accuracy
	SYNC_NODE_SPEED_INIT         = 100 * 1024 //Init a big speed (100MB/s) for every node in first round
	SYNC_MAX_ERROR_RESP_TIMES    = 5          //Max error headers/blocks response times, if reaches, delete it
	SYNC_MAX_HEIGHT_OFFSET       = 5          //Offset of the max height and current height
)

Types

type BlockCache

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

func NewBlockCache

func NewBlockCache() *BlockCache

type BlockInfo

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

BlockInfo is used for saving block information in cache

type BlockSyncMgr

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

BlockSyncMgr is the manager class to deal with block sync

func NewBlockSyncMgr

func NewBlockSyncMgr(server p2p.P2P, ld *ledger.Ledger) *BlockSyncMgr

NewBlockSyncMgr return a BlockSyncMgr instance

func (*BlockSyncMgr) OnAddNode

func (this *BlockSyncMgr) OnAddNode(nodeId p2pComm.PeerId)

OnAddPeer to node list when a new node added

func (*BlockSyncMgr) OnBlockReceive

func (this *BlockSyncMgr) OnBlockReceive(fromID p2pComm.PeerId, blockSize uint32, block *types.Block, ccMsg *types.CrossChainMsg,
	merkleRoot common.Uint256)

OnBlockReceive receive block from net

func (*BlockSyncMgr) OnDelNode

func (this *BlockSyncMgr) OnDelNode(nodeId p2pComm.PeerId)

OnDelNode remove from node list. When the node disconnect

func (*BlockSyncMgr) OnHeaderReceive

func (this *BlockSyncMgr) OnHeaderReceive(fromID p2pComm.PeerId, headers []*types.Header)

OnHeaderReceive receive header from net

func (*BlockSyncMgr) Start

func (this *BlockSyncMgr) Start()

Start to sync

func (*BlockSyncMgr) Stop

func (this *BlockSyncMgr) Stop()

Stop to sync

type NodeWeight

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

NodeWeight record some params of node, using for sort

func NewNodeWeight

func NewNodeWeight(id p2pComm.PeerId) *NodeWeight

NewNodeWeight new a nodeweight

func (*NodeWeight) AddErrorRespCnt

func (this *NodeWeight) AddErrorRespCnt()

AddErrorRespCnt incre receive error header/block count

func (*NodeWeight) AddTimeoutCnt

func (this *NodeWeight) AddTimeoutCnt()

AddTimeoutCnt incre timeout count

func (*NodeWeight) AppendNewReqtime

func (this *NodeWeight) AppendNewReqtime()

AppendNewReqTime append new request time

func (*NodeWeight) AppendNewSpeed

func (this *NodeWeight) AppendNewSpeed(s float32)

addNewSpeed apend the new speed to tail, remove the oldest one

func (*NodeWeight) GetErrorRespCnt

func (this *NodeWeight) GetErrorRespCnt() int

GetErrorRespCnt get the error response count

func (*NodeWeight) Weight

func (this *NodeWeight) Weight() float32

Weight calculate node's weight for sort. Highest weight node will be accessed first for next request.

type NodeWeights

type NodeWeights []*NodeWeight

NodeWeights implement sorting

func (NodeWeights) Len

func (nws NodeWeights) Len() int

func (NodeWeights) Less

func (nws NodeWeights) Less(i, j int) bool

func (NodeWeights) Swap

func (nws NodeWeights) Swap(i, j int)

type SyncFlightInfo

type SyncFlightInfo struct {
	Height uint32 //BlockHeight of HeaderHeight
	// contains filtered or unexported fields
}

SyncFlightInfo record the info of fight object(header or block)

func NewSyncFlightInfo

func NewSyncFlightInfo(height uint32, nodeId p2pComm.PeerId) *SyncFlightInfo

NewSyncFlightInfo return a new SyncFlightInfo instance

func (*SyncFlightInfo) GetFailedTimes

func (this *SyncFlightInfo) GetFailedTimes(nodeId p2pComm.PeerId) int

GetFailedTimes return failed times of a node

func (*SyncFlightInfo) GetNodeId

func (this *SyncFlightInfo) GetNodeId() p2pComm.PeerId

GetNodeId return current node id for sending msg

func (*SyncFlightInfo) GetStartTime

func (this *SyncFlightInfo) GetStartTime() time.Time

GetStartTime return the start time of request

func (*SyncFlightInfo) GetTotalFailedTimes

func (this *SyncFlightInfo) GetTotalFailedTimes() int

GetTotalFailedTimes return the total failed times of request

func (*SyncFlightInfo) MarkFailedNode

func (this *SyncFlightInfo) MarkFailedNode()

MarkFailedNode mark node failed, after request timeout

func (*SyncFlightInfo) ResetStartTime

func (this *SyncFlightInfo) ResetStartTime()

ResetStartTime

func (*SyncFlightInfo) SetNodeId

func (this *SyncFlightInfo) SetNodeId(nodeId p2pComm.PeerId)

SetNodeId set a new node id