major blockpool change
- the spec says response to getBlockHashes(from, max) should return all hashes starting from PARENT of from. This required major changes and results in much hackier code. - Introduced a first round block request after peer introduces with current head, so that hashes can be linked to the head - peerInfo records currentBlockHash, currentBlock, parentHash and headSection - AddBlockHashes checks header section and creates the top node from the peerInfo of the best peer - AddBlock checks peerInfo and updates the block there rather than in a node - request further hashes once a section is created but then no more until the root block is found (so that we know when to stop asking) - in processSection, when root node is checked and receives a block, we need to check if the section has a parent known to blockchain or blockPool - when peers are switched, new peer launches a new requestHeadSection loop or activates its actual head section, i.e., the section for it currentBlockHash - all tests pass
This commit is contained in:
zelig
parent
8ecc9509b3
commit
5a9952c7b4
@ -1,6 +1,7 @@
|
||||
package eth
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"math"
|
||||
"math/big"
|
||||
@ -24,8 +25,8 @@ const (
|
||||
blocksRequestRepetition = 1
|
||||
blockHashesRequestInterval = 500 // ms
|
||||
blocksRequestMaxIdleRounds = 100
|
||||
cacheTimeout = 3 // minutes
|
||||
blockTimeout = 5 // minutes
|
||||
blockHashesTimeout = 60 // seconds
|
||||
blocksTimeout = 120 // seconds
|
||||
)
|
||||
|
||||
type poolNode struct {
|
||||
@ -70,9 +71,14 @@ type BlockPool struct {
|
||||
type peerInfo struct {
|
||||
lock sync.RWMutex
|
||||
|
||||
td *big.Int
|
||||
currentBlock []byte
|
||||
id string
|
||||
td *big.Int
|
||||
currentBlockHash []byte
|
||||
currentBlock *types.Block
|
||||
currentBlockC chan *types.Block
|
||||
parentHash []byte
|
||||
headSection *section
|
||||
headSectionC chan *section
|
||||
id string
|
||||
|
||||
requestBlockHashes func([]byte) error
|
||||
requestBlocks func([][]byte) error
|
||||
@ -203,30 +209,39 @@ func (self *BlockPool) Wait(t time.Duration) {
|
||||
// AddPeer is called by the eth protocol instance running on the peer after
|
||||
// the status message has been received with total difficulty and current block hash
|
||||
// AddPeer can only be used once, RemovePeer needs to be called when the peer disconnects
|
||||
func (self *BlockPool) AddPeer(td *big.Int, currentBlock []byte, peerId string, requestBlockHashes func([]byte) error, requestBlocks func([][]byte) error, peerError func(int, string, ...interface{})) bool {
|
||||
func (self *BlockPool) AddPeer(td *big.Int, currentBlockHash []byte, peerId string, requestBlockHashes func([]byte) error, requestBlocks func([][]byte) error, peerError func(int, string, ...interface{})) (best bool) {
|
||||
|
||||
self.peersLock.Lock()
|
||||
defer self.peersLock.Unlock()
|
||||
peer, ok := self.peers[peerId]
|
||||
if ok {
|
||||
poolLogger.Debugf("Update peer %v with td %v and current block %x", peerId, td, currentBlock[:4])
|
||||
peer.td = td
|
||||
peer.currentBlock = currentBlock
|
||||
if bytes.Compare(peer.currentBlockHash, currentBlockHash) != 0 {
|
||||
poolLogger.Debugf("Update peer %v with td %v and current block %s", peerId, td, name(currentBlockHash))
|
||||
peer.lock.Lock()
|
||||
peer.td = td
|
||||
peer.currentBlockHash = currentBlockHash
|
||||
peer.currentBlock = nil
|
||||
peer.parentHash = nil
|
||||
peer.headSection = nil
|
||||
peer.lock.Unlock()
|
||||
}
|
||||
} else {
|
||||
peer = &peerInfo{
|
||||
td: td,
|
||||
currentBlock: currentBlock,
|
||||
currentBlockHash: currentBlockHash,
|
||||
id: peerId, //peer.Identity().Pubkey()
|
||||
requestBlockHashes: requestBlockHashes,
|
||||
requestBlocks: requestBlocks,
|
||||
peerError: peerError,
|
||||
sections: make(map[string]*section),
|
||||
currentBlockC: make(chan *types.Block),
|
||||
headSectionC: make(chan *section),
|
||||
}
|
||||
self.peers[peerId] = peer
|
||||
poolLogger.Debugf("add new peer %v with td %v and current block %x", peerId, td, currentBlock[:4])
|
||||
poolLogger.Debugf("add new peer %v with td %v and current block %x", peerId, td, currentBlockHash[:4])
|
||||
}
|
||||
// check peer current head
|
||||
if self.hasBlock(currentBlock) {
|
||||
if self.hasBlock(currentBlockHash) {
|
||||
// peer not ahead
|
||||
return false
|
||||
}
|
||||
@ -234,22 +249,135 @@ func (self *BlockPool) AddPeer(td *big.Int, currentBlock []byte, peerId string,
|
||||
if self.peer == peer {
|
||||
// new block update
|
||||
// peer is already active best peer, request hashes
|
||||
poolLogger.Debugf("[%s] already the best peer. request hashes from %s", peerId, name(currentBlock))
|
||||
peer.requestBlockHashes(currentBlock)
|
||||
return true
|
||||
poolLogger.Debugf("[%s] already the best peer. Request new head section info from %s", peerId, name(currentBlockHash))
|
||||
peer.headSectionC <- nil
|
||||
best = true
|
||||
} else {
|
||||
currentTD := ethutil.Big0
|
||||
if self.peer != nil {
|
||||
currentTD = self.peer.td
|
||||
}
|
||||
if td.Cmp(currentTD) > 0 {
|
||||
poolLogger.Debugf("peer %v promoted best peer", peerId)
|
||||
self.switchPeer(self.peer, peer)
|
||||
self.peer = peer
|
||||
best = true
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
currentTD := ethutil.Big0
|
||||
if self.peer != nil {
|
||||
currentTD = self.peer.td
|
||||
}
|
||||
if td.Cmp(currentTD) > 0 {
|
||||
poolLogger.Debugf("peer %v promoted best peer", peerId)
|
||||
self.switchPeer(self.peer, peer)
|
||||
self.peer = peer
|
||||
return true
|
||||
}
|
||||
return false
|
||||
func (self *BlockPool) requestHeadSection(peer *peerInfo) {
|
||||
self.wg.Add(1)
|
||||
self.procWg.Add(1)
|
||||
poolLogger.Debugf("[%s] head section at [%s] requesting info", peer.id, name(peer.currentBlockHash))
|
||||
|
||||
go func() {
|
||||
var idle bool
|
||||
peer.lock.RLock()
|
||||
quitC := peer.quitC
|
||||
currentBlockHash := peer.currentBlockHash
|
||||
peer.lock.RUnlock()
|
||||
blockHashesRequestTimer := time.NewTimer(0)
|
||||
blocksRequestTimer := time.NewTimer(0)
|
||||
suicide := time.NewTimer(blockHashesTimeout * time.Second)
|
||||
blockHashesRequestTimer.Stop()
|
||||
defer blockHashesRequestTimer.Stop()
|
||||
defer blocksRequestTimer.Stop()
|
||||
|
||||
entry := self.get(currentBlockHash)
|
||||
if entry != nil {
|
||||
entry.node.lock.RLock()
|
||||
currentBlock := entry.node.block
|
||||
entry.node.lock.RUnlock()
|
||||
if currentBlock != nil {
|
||||
peer.lock.Lock()
|
||||
peer.currentBlock = currentBlock
|
||||
peer.parentHash = currentBlock.ParentHash()
|
||||
poolLogger.Debugf("[%s] head block [%s] found", peer.id, name(currentBlockHash))
|
||||
peer.lock.Unlock()
|
||||
blockHashesRequestTimer.Reset(0)
|
||||
blocksRequestTimer.Stop()
|
||||
}
|
||||
}
|
||||
|
||||
LOOP:
|
||||
for {
|
||||
|
||||
select {
|
||||
case <-self.quit:
|
||||
break LOOP
|
||||
|
||||
case <-quitC:
|
||||
poolLogger.Debugf("[%s] head section at [%s] incomplete - quit request loop", peer.id, name(currentBlockHash))
|
||||
break LOOP
|
||||
|
||||
case headSection := <-peer.headSectionC:
|
||||
peer.lock.Lock()
|
||||
peer.headSection = headSection
|
||||
if headSection == nil {
|
||||
oldBlockHash := currentBlockHash
|
||||
currentBlockHash = peer.currentBlockHash
|
||||
poolLogger.Debugf("[%s] head section changed [%s] -> [%s]", peer.id, name(oldBlockHash), name(currentBlockHash))
|
||||
if idle {
|
||||
idle = false
|
||||
suicide.Reset(blockHashesTimeout * time.Second)
|
||||
self.procWg.Add(1)
|
||||
}
|
||||
blocksRequestTimer.Reset(blocksRequestInterval * time.Millisecond)
|
||||
} else {
|
||||
poolLogger.DebugDetailf("[%s] head section at [%s] created", peer.id, name(currentBlockHash))
|
||||
if !idle {
|
||||
idle = true
|
||||
suicide.Stop()
|
||||
self.procWg.Done()
|
||||
}
|
||||
}
|
||||
peer.lock.Unlock()
|
||||
blockHashesRequestTimer.Stop()
|
||||
|
||||
case <-blockHashesRequestTimer.C:
|
||||
poolLogger.DebugDetailf("[%s] head section at [%s] not found, requesting block hashes", peer.id, name(currentBlockHash))
|
||||
peer.requestBlockHashes(currentBlockHash)
|
||||
blockHashesRequestTimer.Reset(blockHashesRequestInterval * time.Millisecond)
|
||||
|
||||
case currentBlock := <-peer.currentBlockC:
|
||||
peer.lock.Lock()
|
||||
peer.currentBlock = currentBlock
|
||||
peer.parentHash = currentBlock.ParentHash()
|
||||
poolLogger.DebugDetailf("[%s] head block [%s] found", peer.id, name(currentBlockHash))
|
||||
peer.lock.Unlock()
|
||||
if self.hasBlock(currentBlock.ParentHash()) {
|
||||
if err := self.insertChain(types.Blocks([]*types.Block{currentBlock})); err != nil {
|
||||
peer.peerError(ErrInvalidBlock, "%v", err)
|
||||
}
|
||||
if !idle {
|
||||
idle = true
|
||||
suicide.Stop()
|
||||
self.procWg.Done()
|
||||
}
|
||||
} else {
|
||||
blockHashesRequestTimer.Reset(0)
|
||||
}
|
||||
blocksRequestTimer.Stop()
|
||||
|
||||
case <-blocksRequestTimer.C:
|
||||
peer.lock.RLock()
|
||||
poolLogger.DebugDetailf("[%s] head block [%s] not found, requesting", peer.id, name(currentBlockHash))
|
||||
peer.requestBlocks([][]byte{peer.currentBlockHash})
|
||||
peer.lock.RUnlock()
|
||||
blocksRequestTimer.Reset(blocksRequestInterval * time.Millisecond)
|
||||
|
||||
case <-suicide.C:
|
||||
peer.peerError(ErrInsufficientChainInfo, "peer failed to provide block hashes or head block for block hash %x", currentBlockHash)
|
||||
break LOOP
|
||||
}
|
||||
}
|
||||
self.wg.Done()
|
||||
if !idle {
|
||||
self.procWg.Done()
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
// RemovePeer is called by the eth protocol when the peer disconnects
|
||||
@ -274,13 +402,13 @@ func (self *BlockPool) RemovePeer(peerId string) {
|
||||
newPeer = info
|
||||
}
|
||||
}
|
||||
self.peer = newPeer
|
||||
self.switchPeer(peer, newPeer)
|
||||
if newPeer != nil {
|
||||
poolLogger.Debugf("peer %v with td %v promoted to best peer", newPeer.id, newPeer.td)
|
||||
} else {
|
||||
poolLogger.Warnln("no peers")
|
||||
}
|
||||
self.peer = newPeer
|
||||
self.switchPeer(peer, newPeer)
|
||||
}
|
||||
}
|
||||
|
||||
@ -299,25 +427,56 @@ func (self *BlockPool) AddBlockHashes(next func() ([]byte, bool), peerId string)
|
||||
return
|
||||
}
|
||||
// peer is still the best
|
||||
poolLogger.Debugf("adding hashes for best peer %s", peerId)
|
||||
|
||||
var size, n int
|
||||
var hash []byte
|
||||
var ok bool
|
||||
var section, child, parent *section
|
||||
var ok, headSection bool
|
||||
var sec, child, parent *section
|
||||
var entry *poolEntry
|
||||
var nodes []*poolNode
|
||||
bestPeer := peer
|
||||
|
||||
hash, ok = next()
|
||||
peer.lock.Lock()
|
||||
if bytes.Compare(peer.parentHash, hash) == 0 {
|
||||
if self.hasBlock(peer.currentBlockHash) {
|
||||
return
|
||||
}
|
||||
poolLogger.Debugf("adding hashes at chain head for best peer %s starting from [%s]", peerId, name(peer.currentBlockHash))
|
||||
headSection = true
|
||||
|
||||
if entry := self.get(peer.currentBlockHash); entry == nil {
|
||||
node := &poolNode{
|
||||
hash: peer.currentBlockHash,
|
||||
block: peer.currentBlock,
|
||||
peer: peerId,
|
||||
blockBy: peerId,
|
||||
}
|
||||
if size == 0 {
|
||||
sec = newSection()
|
||||
}
|
||||
nodes = append(nodes, node)
|
||||
size++
|
||||
n++
|
||||
} else {
|
||||
child = entry.section
|
||||
}
|
||||
} else {
|
||||
poolLogger.Debugf("adding hashes for best peer %s starting from [%s]", peerId, name(hash))
|
||||
}
|
||||
quitC := peer.quitC
|
||||
peer.lock.Unlock()
|
||||
|
||||
LOOP:
|
||||
// iterate using next (rlp stream lazy decoder) feeding hashesC
|
||||
for hash, ok = next(); ok; hash, ok = next() {
|
||||
for ; ok; hash, ok = next() {
|
||||
n++
|
||||
select {
|
||||
case <-self.quit:
|
||||
return
|
||||
case <-peer.quitC:
|
||||
case <-quitC:
|
||||
// if the peer is demoted, no more hashes taken
|
||||
peer = nil
|
||||
bestPeer = nil
|
||||
break LOOP
|
||||
default:
|
||||
}
|
||||
@ -325,8 +484,8 @@ LOOP:
|
||||
// check if known block connecting the downloaded chain to our blockchain
|
||||
poolLogger.DebugDetailf("[%s] known block", name(hash))
|
||||
// mark child as absolute pool root with parent known to blockchain
|
||||
if section != nil {
|
||||
self.connectToBlockChain(section)
|
||||
if sec != nil {
|
||||
self.connectToBlockChain(sec)
|
||||
} else {
|
||||
if child != nil {
|
||||
self.connectToBlockChain(child)
|
||||
@ -340,6 +499,7 @@ LOOP:
|
||||
// reached a known chain in the pool
|
||||
if entry.node == entry.section.bottom && n == 1 {
|
||||
// the first block hash received is an orphan in the pool, so rejoice and continue
|
||||
poolLogger.DebugDetailf("[%s] connecting child section", sectionName(entry.section))
|
||||
child = entry.section
|
||||
continue LOOP
|
||||
}
|
||||
@ -353,7 +513,7 @@ LOOP:
|
||||
peer: peerId,
|
||||
}
|
||||
if size == 0 {
|
||||
section = newSection()
|
||||
sec = newSection()
|
||||
}
|
||||
nodes = append(nodes, node)
|
||||
size++
|
||||
@ -379,10 +539,10 @@ LOOP:
|
||||
}
|
||||
|
||||
if size > 0 {
|
||||
self.processSection(section, nodes)
|
||||
poolLogger.DebugDetailf("[%s]->[%s](%v)->[%s] new chain section", sectionName(parent), sectionName(section), size, sectionName(child))
|
||||
self.link(parent, section)
|
||||
self.link(section, child)
|
||||
self.processSection(sec, nodes)
|
||||
poolLogger.DebugDetailf("[%s]->[%s](%v)->[%s] new chain section", sectionName(parent), sectionName(sec), size, sectionName(child))
|
||||
self.link(parent, sec)
|
||||
self.link(sec, child)
|
||||
} else {
|
||||
poolLogger.DebugDetailf("[%s]->[%s] connecting known sections", sectionName(parent), sectionName(child))
|
||||
self.link(parent, child)
|
||||
@ -390,15 +550,31 @@ LOOP:
|
||||
|
||||
self.chainLock.Unlock()
|
||||
|
||||
if parent != nil && peer != nil {
|
||||
if parent != nil && bestPeer != nil {
|
||||
self.activateChain(parent, peer)
|
||||
poolLogger.Debugf("[%s] activate parent section [%s]", name(parent.top.hash), sectionName(parent))
|
||||
}
|
||||
|
||||
if section != nil {
|
||||
peer.addSection(section.top.hash, section)
|
||||
section.controlC <- peer
|
||||
poolLogger.Debugf("[%s] activate new section", sectionName(section))
|
||||
if sec != nil {
|
||||
peer.addSection(sec.top.hash, sec)
|
||||
// request next section here once, only repeat if bottom block arrives,
|
||||
// otherwise no way to check if it arrived
|
||||
peer.requestBlockHashes(sec.bottom.hash)
|
||||
sec.controlC <- bestPeer
|
||||
poolLogger.Debugf("[%s] activate new section", sectionName(sec))
|
||||
}
|
||||
|
||||
if headSection {
|
||||
var headSec *section
|
||||
switch {
|
||||
case sec != nil:
|
||||
headSec = sec
|
||||
case child != nil:
|
||||
headSec = child
|
||||
default:
|
||||
headSec = parent
|
||||
}
|
||||
peer.headSectionC <- headSec
|
||||
}
|
||||
}
|
||||
|
||||
@ -426,14 +602,21 @@ func sectionName(section *section) (name string) {
|
||||
// only the first PoW-valid block for a hash is considered legit
|
||||
func (self *BlockPool) AddBlock(block *types.Block, peerId string) {
|
||||
hash := block.Hash()
|
||||
if self.hasBlock(hash) {
|
||||
poolLogger.DebugDetailf("block [%s] already known", name(hash))
|
||||
return
|
||||
}
|
||||
self.peersLock.Lock()
|
||||
peer := self.peer
|
||||
self.peersLock.Unlock()
|
||||
|
||||
entry := self.get(hash)
|
||||
if bytes.Compare(hash, peer.currentBlockHash) == 0 {
|
||||
poolLogger.Debugf("add head block [%s] for peer %s", name(hash), peerId)
|
||||
peer.currentBlockC <- block
|
||||
} else {
|
||||
if entry == nil {
|
||||
poolLogger.Warnf("unrequested block [%s] by peer %s", name(hash), peerId)
|
||||
self.peerError(peerId, ErrUnrequestedBlock, "%x", hash)
|
||||
}
|
||||
}
|
||||
if entry == nil {
|
||||
poolLogger.Warnf("unrequested block [%x] by peer %s", hash, peerId)
|
||||
self.peerError(peerId, ErrUnrequestedBlock, "%x", hash)
|
||||
return
|
||||
}
|
||||
|
||||
@ -443,17 +626,21 @@ func (self *BlockPool) AddBlock(block *types.Block, peerId string) {
|
||||
|
||||
// check if block already present
|
||||
if node.block != nil {
|
||||
poolLogger.DebugDetailf("block [%x] already sent by %s", name(hash), node.blockBy)
|
||||
poolLogger.DebugDetailf("block [%s] already sent by %s", name(hash), node.blockBy)
|
||||
return
|
||||
}
|
||||
|
||||
// validate block for PoW
|
||||
if !self.verifyPoW(block) {
|
||||
poolLogger.Warnf("invalid pow on block [%x] by peer %s", hash, peerId)
|
||||
self.peerError(peerId, ErrInvalidPoW, "%x", hash)
|
||||
return
|
||||
}
|
||||
if self.hasBlock(hash) {
|
||||
poolLogger.DebugDetailf("block [%s] already known", name(hash))
|
||||
} else {
|
||||
|
||||
// validate block for PoW
|
||||
if !self.verifyPoW(block) {
|
||||
poolLogger.Warnf("invalid pow on block [%s] by peer %s", name(hash), peerId)
|
||||
self.peerError(peerId, ErrInvalidPoW, "%x", hash)
|
||||
return
|
||||
}
|
||||
}
|
||||
poolLogger.Debugf("added block [%s] sent by peer %s", name(hash), peerId)
|
||||
node.block = block
|
||||
node.blockBy = peerId
|
||||
@ -544,23 +731,23 @@ LOOP:
|
||||
// - when turned off (if peer disconnects and new peer connects with alternative chain), no blockrequests are made but absolute expiry timer is ticking
|
||||
// - when turned back on it recursively calls itself on the root of the next chain section
|
||||
// - when exits, signals to
|
||||
func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
func (self *BlockPool) processSection(sec *section, nodes []*poolNode) {
|
||||
|
||||
for i, node := range nodes {
|
||||
entry := &poolEntry{node: node, section: section, index: i}
|
||||
entry := &poolEntry{node: node, section: sec, index: i}
|
||||
self.set(node.hash, entry)
|
||||
}
|
||||
|
||||
section.bottom = nodes[len(nodes)-1]
|
||||
section.top = nodes[0]
|
||||
section.nodes = nodes
|
||||
poolLogger.DebugDetailf("[%s] setup section process", sectionName(section))
|
||||
sec.bottom = nodes[len(nodes)-1]
|
||||
sec.top = nodes[0]
|
||||
sec.nodes = nodes
|
||||
poolLogger.DebugDetailf("[%s] setup section process", sectionName(sec))
|
||||
|
||||
self.wg.Add(1)
|
||||
go func() {
|
||||
|
||||
// absolute time after which sub-chain is killed if not complete (some blocks are missing)
|
||||
suicideTimer := time.After(blockTimeout * time.Minute)
|
||||
suicideTimer := time.After(blocksTimeout * time.Second)
|
||||
|
||||
var peer, newPeer *peerInfo
|
||||
|
||||
@ -580,21 +767,23 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
var insertChain bool
|
||||
var quitC chan bool
|
||||
|
||||
var blockChainC = section.blockChainC
|
||||
var blockChainC = sec.blockChainC
|
||||
|
||||
var parentHash []byte
|
||||
|
||||
LOOP:
|
||||
for {
|
||||
|
||||
if insertChain {
|
||||
insertChain = false
|
||||
rest, err := self.addSectionToBlockChain(section)
|
||||
rest, err := self.addSectionToBlockChain(sec)
|
||||
if err != nil {
|
||||
close(section.suicideC)
|
||||
close(sec.suicideC)
|
||||
continue LOOP
|
||||
}
|
||||
if rest == 0 {
|
||||
blocksRequestsComplete = true
|
||||
child := self.getChild(section)
|
||||
child := self.getChild(sec)
|
||||
if child != nil {
|
||||
self.connectToBlockChain(child)
|
||||
}
|
||||
@ -603,7 +792,7 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
|
||||
if blockHashesRequestsComplete && blocksRequestsComplete {
|
||||
// not waiting for hashes any more
|
||||
poolLogger.Debugf("[%s] section complete %v blocks retrieved (%v attempts), hash requests complete on root (%v attempts)", sectionName(section), depth, blocksRequests, blockHashesRequests)
|
||||
poolLogger.Debugf("[%s] section complete %v blocks retrieved (%v attempts), hash requests complete on root (%v attempts)", sectionName(sec), depth, blocksRequests, blockHashesRequests)
|
||||
break LOOP
|
||||
} // otherwise suicide if no hashes coming
|
||||
|
||||
@ -611,11 +800,12 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
// went through all blocks in section
|
||||
if missing == 0 {
|
||||
// no missing blocks
|
||||
poolLogger.DebugDetailf("[%s] got all blocks. process complete (%v total blocksRequests): missing %v/%v/%v", sectionName(section), blocksRequests, missing, lastMissing, depth)
|
||||
poolLogger.DebugDetailf("[%s] got all blocks. process complete (%v total blocksRequests): missing %v/%v/%v", sectionName(sec), blocksRequests, missing, lastMissing, depth)
|
||||
blocksRequestsComplete = true
|
||||
blocksRequestTimer = nil
|
||||
blocksRequestTime = false
|
||||
} else {
|
||||
poolLogger.DebugDetailf("[%s] section checked: missing %v/%v/%v", sectionName(sec), missing, lastMissing, depth)
|
||||
// some missing blocks
|
||||
blocksRequests++
|
||||
if len(hashes) > 0 {
|
||||
@ -630,8 +820,8 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
idle++
|
||||
// too many idle rounds
|
||||
if idle >= blocksRequestMaxIdleRounds {
|
||||
poolLogger.DebugDetailf("[%s] block requests had %v idle rounds (%v total attempts): missing %v/%v/%v\ngiving up...", sectionName(section), idle, blocksRequests, missing, lastMissing, depth)
|
||||
close(section.suicideC)
|
||||
poolLogger.DebugDetailf("[%s] block requests had %v idle rounds (%v total attempts): missing %v/%v/%v\ngiving up...", sectionName(sec), idle, blocksRequests, missing, lastMissing, depth)
|
||||
close(sec.suicideC)
|
||||
}
|
||||
} else {
|
||||
idle = 0
|
||||
@ -653,22 +843,39 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
//
|
||||
|
||||
if ready && blocksRequestTime && !blocksRequestsComplete {
|
||||
poolLogger.DebugDetailf("[%s] check if new blocks arrived (attempt %v): missing %v/%v/%v", sectionName(section), blocksRequests, missing, lastMissing, depth)
|
||||
poolLogger.DebugDetailf("[%s] check if new blocks arrived (attempt %v): missing %v/%v/%v", sectionName(sec), blocksRequests, missing, lastMissing, depth)
|
||||
blocksRequestTimer = time.After(blocksRequestInterval * time.Millisecond)
|
||||
blocksRequestTime = false
|
||||
processC = offC
|
||||
}
|
||||
|
||||
if blockHashesRequestTime {
|
||||
if self.getParent(section) != nil {
|
||||
var parentSection = self.getParent(sec)
|
||||
if parentSection == nil {
|
||||
if parent := self.get(parentHash); parent != nil {
|
||||
parentSection = parent.section
|
||||
self.chainLock.Lock()
|
||||
self.link(parentSection, sec)
|
||||
self.chainLock.Unlock()
|
||||
} else {
|
||||
if self.hasBlock(parentHash) {
|
||||
insertChain = true
|
||||
blockHashesRequestTime = false
|
||||
blockHashesRequestTimer = nil
|
||||
blockHashesRequestsComplete = true
|
||||
continue LOOP
|
||||
}
|
||||
}
|
||||
}
|
||||
if parentSection != nil {
|
||||
// if not root of chain, switch off
|
||||
poolLogger.DebugDetailf("[%s] parent found, hash requests deactivated (after %v total attempts)\n", sectionName(section), blockHashesRequests)
|
||||
poolLogger.DebugDetailf("[%s] parent found, hash requests deactivated (after %v total attempts)\n", sectionName(sec), blockHashesRequests)
|
||||
blockHashesRequestTimer = nil
|
||||
blockHashesRequestsComplete = true
|
||||
} else {
|
||||
blockHashesRequests++
|
||||
poolLogger.Debugf("[%s] hash request on root (%v total attempts)\n", sectionName(section), blockHashesRequests)
|
||||
peer.requestBlockHashes(section.bottom.hash)
|
||||
poolLogger.Debugf("[%s] hash request on root (%v total attempts)\n", sectionName(sec), blockHashesRequests)
|
||||
peer.requestBlockHashes(sec.bottom.hash)
|
||||
blockHashesRequestTimer = time.After(blockHashesRequestInterval * time.Millisecond)
|
||||
}
|
||||
blockHashesRequestTime = false
|
||||
@ -682,27 +889,27 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
// peer quit or demoted, put section in idle mode
|
||||
quitC = nil
|
||||
go func() {
|
||||
section.controlC <- nil
|
||||
sec.controlC <- nil
|
||||
}()
|
||||
|
||||
case <-self.purgeC:
|
||||
suicideTimer = time.After(0)
|
||||
|
||||
case <-suicideTimer:
|
||||
close(section.suicideC)
|
||||
poolLogger.Debugf("[%s] timeout. (%v total attempts): missing %v/%v/%v", sectionName(section), blocksRequests, missing, lastMissing, depth)
|
||||
close(sec.suicideC)
|
||||
poolLogger.Debugf("[%s] timeout. (%v total attempts): missing %v/%v/%v", sectionName(sec), blocksRequests, missing, lastMissing, depth)
|
||||
|
||||
case <-section.suicideC:
|
||||
poolLogger.Debugf("[%s] suicide", sectionName(section))
|
||||
case <-sec.suicideC:
|
||||
poolLogger.Debugf("[%s] suicide", sectionName(sec))
|
||||
|
||||
// first delink from child and parent under chainlock
|
||||
self.chainLock.Lock()
|
||||
self.link(nil, section)
|
||||
self.link(section, nil)
|
||||
self.link(nil, sec)
|
||||
self.link(sec, nil)
|
||||
self.chainLock.Unlock()
|
||||
// delete node entries from pool index under pool lock
|
||||
self.lock.Lock()
|
||||
for _, node := range section.nodes {
|
||||
for _, node := range sec.nodes {
|
||||
delete(self.pool, string(node.hash))
|
||||
}
|
||||
self.lock.Unlock()
|
||||
@ -710,20 +917,20 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
break LOOP
|
||||
|
||||
case <-blocksRequestTimer:
|
||||
poolLogger.DebugDetailf("[%s] block request time", sectionName(section))
|
||||
poolLogger.DebugDetailf("[%s] block request time", sectionName(sec))
|
||||
blocksRequestTime = true
|
||||
|
||||
case <-blockHashesRequestTimer:
|
||||
poolLogger.DebugDetailf("[%s] hash request time", sectionName(section))
|
||||
poolLogger.DebugDetailf("[%s] hash request time", sectionName(sec))
|
||||
blockHashesRequestTime = true
|
||||
|
||||
case newPeer = <-section.controlC:
|
||||
case newPeer = <-sec.controlC:
|
||||
|
||||
// active -> idle
|
||||
if peer != nil && newPeer == nil {
|
||||
self.procWg.Done()
|
||||
if init {
|
||||
poolLogger.Debugf("[%s] idle mode (%v total attempts): missing %v/%v/%v", sectionName(section), blocksRequests, missing, lastMissing, depth)
|
||||
poolLogger.Debugf("[%s] idle mode (%v total attempts): missing %v/%v/%v", sectionName(sec), blocksRequests, missing, lastMissing, depth)
|
||||
}
|
||||
blocksRequestTime = false
|
||||
blocksRequestTimer = nil
|
||||
@ -739,11 +946,11 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
if peer == nil && newPeer != nil {
|
||||
self.procWg.Add(1)
|
||||
|
||||
poolLogger.Debugf("[%s] active mode", sectionName(section))
|
||||
poolLogger.Debugf("[%s] active mode", sectionName(sec))
|
||||
if !blocksRequestsComplete {
|
||||
blocksRequestTime = true
|
||||
}
|
||||
if !blockHashesRequestsComplete {
|
||||
if !blockHashesRequestsComplete && parentHash != nil {
|
||||
blockHashesRequestTime = true
|
||||
}
|
||||
if !init {
|
||||
@ -753,13 +960,13 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
missing = 0
|
||||
self.wg.Add(1)
|
||||
self.procWg.Add(1)
|
||||
depth = len(section.nodes)
|
||||
depth = len(sec.nodes)
|
||||
lastMissing = depth
|
||||
// if not run at least once fully, launch iterator
|
||||
go func() {
|
||||
var node *poolNode
|
||||
IT:
|
||||
for _, node = range section.nodes {
|
||||
for _, node = range sec.nodes {
|
||||
select {
|
||||
case processC <- node:
|
||||
case <-self.quit:
|
||||
@ -771,7 +978,7 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
self.procWg.Done()
|
||||
}()
|
||||
} else {
|
||||
poolLogger.Debugf("[%s] restore earlier state", sectionName(section))
|
||||
poolLogger.Debugf("[%s] restore earlier state", sectionName(sec))
|
||||
processC = offC
|
||||
}
|
||||
}
|
||||
@ -781,7 +988,7 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
}
|
||||
peer = newPeer
|
||||
|
||||
case waiter := <-section.forkC:
|
||||
case waiter := <-sec.forkC:
|
||||
// this case just blocks the process until section is split at the fork
|
||||
<-waiter
|
||||
init = false
|
||||
@ -794,7 +1001,7 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
init = true
|
||||
done = true
|
||||
processC = make(chan *poolNode, missing)
|
||||
poolLogger.DebugDetailf("[%s] section initalised: missing %v/%v/%v", sectionName(section), missing, lastMissing, depth)
|
||||
poolLogger.DebugDetailf("[%s] section initalised: missing %v/%v/%v", sectionName(sec), missing, lastMissing, depth)
|
||||
continue LOOP
|
||||
}
|
||||
if ready {
|
||||
@ -811,17 +1018,24 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
missing++
|
||||
hashes = append(hashes, node.hash)
|
||||
if len(hashes) == blockBatchSize {
|
||||
poolLogger.Debugf("[%s] request %v missing blocks", sectionName(section), len(hashes))
|
||||
poolLogger.Debugf("[%s] request %v missing blocks", sectionName(sec), len(hashes))
|
||||
self.requestBlocks(blocksRequests, hashes)
|
||||
hashes = nil
|
||||
}
|
||||
missingC <- node
|
||||
} else {
|
||||
if blockChainC == nil && i == lastMissing {
|
||||
insertChain = true
|
||||
if i == lastMissing {
|
||||
if blockChainC == nil {
|
||||
insertChain = true
|
||||
} else {
|
||||
if parentHash == nil {
|
||||
parentHash = block.ParentHash()
|
||||
poolLogger.Debugf("[%s] found root block [%s]", sectionName(sec), name(parentHash))
|
||||
blockHashesRequestTime = true
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
poolLogger.Debugf("[%s] %v/%v/%v/%v", sectionName(section), i, missing, lastMissing, depth)
|
||||
if i == lastMissing && init {
|
||||
done = true
|
||||
}
|
||||
@ -829,23 +1043,22 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
|
||||
case <-blockChainC:
|
||||
// closed blockChain channel indicates that the blockpool is reached
|
||||
// connected to the blockchain, insert the longest chain of blocks
|
||||
poolLogger.Debugf("[%s] reached blockchain", sectionName(section))
|
||||
poolLogger.Debugf("[%s] reached blockchain", sectionName(sec))
|
||||
blockChainC = nil
|
||||
// switch off hash requests in case they were on
|
||||
blockHashesRequestTime = false
|
||||
blockHashesRequestTimer = nil
|
||||
blockHashesRequestsComplete = true
|
||||
// section root has block
|
||||
if len(section.nodes) > 0 && section.nodes[len(section.nodes)-1].block != nil {
|
||||
if len(sec.nodes) > 0 && sec.nodes[len(sec.nodes)-1].block != nil {
|
||||
insertChain = true
|
||||
}
|
||||
continue LOOP
|
||||
|
||||
} // select
|
||||
} // for
|
||||
poolLogger.Debugf("[%s] section complete: %v block hashes requests - %v block requests - missing %v/%v/%v", sectionName(section), blockHashesRequests, blocksRequests, missing, lastMissing, depth)
|
||||
|
||||
close(section.offC)
|
||||
close(sec.offC)
|
||||
|
||||
self.wg.Done()
|
||||
if peer != nil {
|
||||
@ -917,22 +1130,28 @@ func (self *peerInfo) addSection(hash []byte, section *section) (found *section)
|
||||
defer self.lock.Unlock()
|
||||
key := string(hash)
|
||||
found = self.sections[key]
|
||||
poolLogger.DebugDetailf("[%s] section process %s registered", sectionName(section), self.id)
|
||||
poolLogger.DebugDetailf("[%s] section process stored for %s", sectionName(section), self.id)
|
||||
self.sections[key] = section
|
||||
return
|
||||
}
|
||||
|
||||
func (self *BlockPool) switchPeer(oldPeer, newPeer *peerInfo) {
|
||||
if newPeer != nil {
|
||||
entry := self.get(newPeer.currentBlock)
|
||||
if entry == nil {
|
||||
poolLogger.Debugf("[%s] head block [%s] not found, requesting hashes", newPeer.id, name(newPeer.currentBlock))
|
||||
newPeer.requestBlockHashes(newPeer.currentBlock)
|
||||
} else {
|
||||
poolLogger.Debugf("[%s] head block [%s] found, activate chain at section [%s]", newPeer.id, name(newPeer.currentBlock), sectionName(entry.section))
|
||||
self.activateChain(entry.section, newPeer)
|
||||
}
|
||||
newPeer.quitC = make(chan bool)
|
||||
poolLogger.DebugDetailf("[%s] activate section processes", newPeer.id)
|
||||
var addSections []*section
|
||||
for hash, section := range newPeer.sections {
|
||||
// split sections get reorganised here
|
||||
if string(section.top.hash) != hash {
|
||||
addSections = append(addSections, section)
|
||||
if entry := self.get([]byte(hash)); entry != nil {
|
||||
addSections = append(addSections, entry.section)
|
||||
}
|
||||
}
|
||||
}
|
||||
for _, section := range addSections {
|
||||
newPeer.sections[string(section.top.hash)] = section
|
||||
}
|
||||
for hash, section := range newPeer.sections {
|
||||
// this will block if section process is waiting for peer lock
|
||||
select {
|
||||
@ -940,12 +1159,26 @@ func (self *BlockPool) switchPeer(oldPeer, newPeer *peerInfo) {
|
||||
poolLogger.DebugDetailf("[%s][%x] section process complete - remove", newPeer.id, hash[:4])
|
||||
delete(newPeer.sections, hash)
|
||||
case section.controlC <- newPeer:
|
||||
poolLogger.DebugDetailf("[%s][%x] registered peer with section", newPeer.id, hash[:4])
|
||||
poolLogger.DebugDetailf("[%s][%x] activates section [%s]", newPeer.id, hash[:4], sectionName(section))
|
||||
}
|
||||
}
|
||||
newPeer.quitC = make(chan bool)
|
||||
newPeer.lock.Lock()
|
||||
headSection := newPeer.headSection
|
||||
currentBlockHash := newPeer.currentBlockHash
|
||||
newPeer.lock.Unlock()
|
||||
if headSection == nil {
|
||||
poolLogger.DebugDetailf("[%s] head section for [%s] not created, requesting info", newPeer.id, name(currentBlockHash))
|
||||
self.requestHeadSection(newPeer)
|
||||
} else {
|
||||
if entry := self.get(currentBlockHash); entry != nil {
|
||||
headSection = entry.section
|
||||
}
|
||||
poolLogger.DebugDetailf("[%s] activate chain at head section [%s] for current head [%s]", newPeer.id, sectionName(headSection), name(currentBlockHash))
|
||||
self.activateChain(headSection, newPeer)
|
||||
}
|
||||
}
|
||||
if oldPeer != nil {
|
||||
poolLogger.DebugDetailf("[%s] quit section processes", oldPeer.id)
|
||||
close(oldPeer.quitC)
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user