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Merge branch 'ethersphere-develop' into develop

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This commit is contained in:
obscuren 2015-01-09 16:34:49 +01:00
commit b136b387a7
8 changed files with 500 additions and 191 deletions
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4
core/chain_manager.go
View File

@ -238,13 +238,11 @@ func (self *ChainManager) GetBlockHashesFromHash(hash []byte, max uint64) (chain
// XXX Could be optimised by using a different database which only holds hashes (i.e., linked list) // XXX Could be optimised by using a different database which only holds hashes (i.e., linked list)
for i := uint64(0); i < max; i++ { for i := uint64(0); i < max; i++ {
block = self.GetBlock(block.Header().ParentHash)
chain = append(chain, block.Hash()) chain = append(chain, block.Hash())
if block.Header().Number.Cmp(ethutil.Big0) <= 0 { if block.Header().Number.Cmp(ethutil.Big0) <= 0 {
break break
} }
block = self.GetBlock(block.Header().ParentHash)
} }
return return

467
eth/block_pool.go
View File

@ -1,6 +1,7 @@
package eth package eth
import ( import (
"bytes"
"fmt" "fmt"
"math" "math"
"math/big" "math/big"
@ -24,8 +25,8 @@ const (
blocksRequestRepetition = 1 blocksRequestRepetition = 1
blockHashesRequestInterval = 500 // ms blockHashesRequestInterval = 500 // ms
blocksRequestMaxIdleRounds = 100 blocksRequestMaxIdleRounds = 100
cacheTimeout = 3 // minutes blockHashesTimeout = 60 // seconds
blockTimeout = 5 // minutes blocksTimeout = 120 // seconds
) )
type poolNode struct { type poolNode struct {
@ -70,9 +71,14 @@ type BlockPool struct {
type peerInfo struct { type peerInfo struct {
lock sync.RWMutex lock sync.RWMutex
td *big.Int td *big.Int
currentBlock []byte currentBlockHash []byte
id string currentBlock *types.Block
currentBlockC chan *types.Block
parentHash []byte
headSection *section
headSectionC chan *section
id string
requestBlockHashes func([]byte) error requestBlockHashes func([]byte) error
requestBlocks 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 // 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 // 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 // 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() self.peersLock.Lock()
defer self.peersLock.Unlock() defer self.peersLock.Unlock()
peer, ok := self.peers[peerId] peer, ok := self.peers[peerId]
if ok { if ok {
poolLogger.Debugf("Update peer %v with td %v and current block %x", peerId, td, currentBlock[:4]) if bytes.Compare(peer.currentBlockHash, currentBlockHash) != 0 {
peer.td = td poolLogger.Debugf("Update peer %v with td %v and current block %s", peerId, td, name(currentBlockHash))
peer.currentBlock = currentBlock peer.lock.Lock()
peer.td = td
peer.currentBlockHash = currentBlockHash
peer.currentBlock = nil
peer.parentHash = nil
peer.headSection = nil
peer.lock.Unlock()
}
} else { } else {
peer = &peerInfo{ peer = &peerInfo{
td: td, td: td,
currentBlock: currentBlock, currentBlockHash: currentBlockHash,
id: peerId, //peer.Identity().Pubkey() id: peerId, //peer.Identity().Pubkey()
requestBlockHashes: requestBlockHashes, requestBlockHashes: requestBlockHashes,
requestBlocks: requestBlocks, requestBlocks: requestBlocks,
peerError: peerError, peerError: peerError,
sections: make(map[string]*section), sections: make(map[string]*section),
currentBlockC: make(chan *types.Block),
headSectionC: make(chan *section),
} }
self.peers[peerId] = peer 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 // check peer current head
if self.hasBlock(currentBlock) { if self.hasBlock(currentBlockHash) {
// peer not ahead // peer not ahead
return false return false
} }
@ -234,22 +249,135 @@ func (self *BlockPool) AddPeer(td *big.Int, currentBlock []byte, peerId string,
if self.peer == peer { if self.peer == peer {
// new block update // new block update
// peer is already active best peer, request hashes // peer is already active best peer, request hashes
poolLogger.Debugf("[%s] already the best peer. request hashes from %s", peerId, name(currentBlock)) poolLogger.Debugf("[%s] already the best peer. Request new head section info from %s", peerId, name(currentBlockHash))
peer.requestBlockHashes(currentBlock) peer.headSectionC <- nil
return true 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 func (self *BlockPool) requestHeadSection(peer *peerInfo) {
if self.peer != nil { self.wg.Add(1)
currentTD = self.peer.td self.procWg.Add(1)
} poolLogger.Debugf("[%s] head section at [%s] requesting info", peer.id, name(peer.currentBlockHash))
if td.Cmp(currentTD) > 0 {
poolLogger.Debugf("peer %v promoted best peer", peerId) go func() {
self.switchPeer(self.peer, peer) var idle bool
self.peer = peer peer.lock.RLock()
return true quitC := peer.quitC
} currentBlockHash := peer.currentBlockHash
return false 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 // RemovePeer is called by the eth protocol when the peer disconnects
@ -274,13 +402,13 @@ func (self *BlockPool) RemovePeer(peerId string) {
newPeer = info newPeer = info
} }
} }
self.peer = newPeer
self.switchPeer(peer, newPeer)
if newPeer != nil { if newPeer != nil {
poolLogger.Debugf("peer %v with td %v promoted to best peer", newPeer.id, newPeer.td) poolLogger.Debugf("peer %v with td %v promoted to best peer", newPeer.id, newPeer.td)
} else { } else {
poolLogger.Warnln("no peers") 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 return
} }
// peer is still the best // peer is still the best
poolLogger.Debugf("adding hashes for best peer %s", peerId)
var size, n int var size, n int
var hash []byte var hash []byte
var ok bool var ok, headSection bool
var section, child, parent *section var sec, child, parent *section
var entry *poolEntry var entry *poolEntry
var nodes []*poolNode 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: LOOP:
// iterate using next (rlp stream lazy decoder) feeding hashesC // iterate using next (rlp stream lazy decoder) feeding hashesC
for hash, ok = next(); ok; hash, ok = next() { for ; ok; hash, ok = next() {
n++ n++
select { select {
case <-self.quit: case <-self.quit:
return return
case <-peer.quitC: case <-quitC:
// if the peer is demoted, no more hashes taken // if the peer is demoted, no more hashes taken
peer = nil bestPeer = nil
break LOOP break LOOP
default: default:
} }
@ -325,8 +484,8 @@ LOOP:
// check if known block connecting the downloaded chain to our blockchain // check if known block connecting the downloaded chain to our blockchain
poolLogger.DebugDetailf("[%s] known block", name(hash)) poolLogger.DebugDetailf("[%s] known block", name(hash))
// mark child as absolute pool root with parent known to blockchain // mark child as absolute pool root with parent known to blockchain
if section != nil { if sec != nil {
self.connectToBlockChain(section) self.connectToBlockChain(sec)
} else { } else {
if child != nil { if child != nil {
self.connectToBlockChain(child) self.connectToBlockChain(child)
@ -340,6 +499,7 @@ LOOP:
// reached a known chain in the pool // reached a known chain in the pool
if entry.node == entry.section.bottom && n == 1 { if entry.node == entry.section.bottom && n == 1 {
// the first block hash received is an orphan in the pool, so rejoice and continue // 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 child = entry.section
continue LOOP continue LOOP
} }
@ -353,7 +513,7 @@ LOOP:
peer: peerId, peer: peerId,
} }
if size == 0 { if size == 0 {
section = newSection() sec = newSection()
} }
nodes = append(nodes, node) nodes = append(nodes, node)
size++ size++
@ -379,10 +539,10 @@ LOOP:
} }
if size > 0 { if size > 0 {
self.processSection(section, nodes) self.processSection(sec, nodes)
poolLogger.DebugDetailf("[%s]->[%s](%v)->[%s] new chain section", sectionName(parent), sectionName(section), size, sectionName(child)) poolLogger.DebugDetailf("[%s]->[%s](%v)->[%s] new chain section", sectionName(parent), sectionName(sec), size, sectionName(child))
self.link(parent, section) self.link(parent, sec)
self.link(section, child) self.link(sec, child)
} else { } else {
poolLogger.DebugDetailf("[%s]->[%s] connecting known sections", sectionName(parent), sectionName(child)) poolLogger.DebugDetailf("[%s]->[%s] connecting known sections", sectionName(parent), sectionName(child))
self.link(parent, child) self.link(parent, child)
@ -390,15 +550,31 @@ LOOP:
self.chainLock.Unlock() self.chainLock.Unlock()
if parent != nil && peer != nil { if parent != nil && bestPeer != nil {
self.activateChain(parent, peer) self.activateChain(parent, peer)
poolLogger.Debugf("[%s] activate parent section [%s]", name(parent.top.hash), sectionName(parent)) poolLogger.Debugf("[%s] activate parent section [%s]", name(parent.top.hash), sectionName(parent))
} }
if section != nil { if sec != nil {
peer.addSection(section.top.hash, section) peer.addSection(sec.top.hash, sec)
section.controlC <- peer // request next section here once, only repeat if bottom block arrives,
poolLogger.Debugf("[%s] activate new section", sectionName(section)) // 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 // only the first PoW-valid block for a hash is considered legit
func (self *BlockPool) AddBlock(block *types.Block, peerId string) { func (self *BlockPool) AddBlock(block *types.Block, peerId string) {
hash := block.Hash() hash := block.Hash()
if self.hasBlock(hash) { self.peersLock.Lock()
poolLogger.DebugDetailf("block [%s] already known", name(hash)) peer := self.peer
return self.peersLock.Unlock()
}
entry := self.get(hash) 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 { if entry == nil {
poolLogger.Warnf("unrequested block [%x] by peer %s", hash, peerId)
self.peerError(peerId, ErrUnrequestedBlock, "%x", hash)
return return
} }
@ -443,17 +626,21 @@ func (self *BlockPool) AddBlock(block *types.Block, peerId string) {
// check if block already present // check if block already present
if node.block != nil { 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 return
} }
// validate block for PoW if self.hasBlock(hash) {
if !self.verifyPoW(block) { poolLogger.DebugDetailf("block [%s] already known", name(hash))
poolLogger.Warnf("invalid pow on block [%x] by peer %s", hash, peerId) } else {
self.peerError(peerId, ErrInvalidPoW, "%x", hash)
return
}
// 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) poolLogger.Debugf("added block [%s] sent by peer %s", name(hash), peerId)
node.block = block node.block = block
node.blockBy = peerId 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 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 turned back on it recursively calls itself on the root of the next chain section
// - when exits, signals to // - 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 { 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) self.set(node.hash, entry)
} }
section.bottom = nodes[len(nodes)-1] sec.bottom = nodes[len(nodes)-1]
section.top = nodes[0] sec.top = nodes[0]
section.nodes = nodes sec.nodes = nodes
poolLogger.DebugDetailf("[%s] setup section process", sectionName(section)) poolLogger.DebugDetailf("[%s] setup section process", sectionName(sec))
self.wg.Add(1) self.wg.Add(1)
go func() { go func() {
// absolute time after which sub-chain is killed if not complete (some blocks are missing) // 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 var peer, newPeer *peerInfo
@ -580,21 +767,23 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
var insertChain bool var insertChain bool
var quitC chan bool var quitC chan bool
var blockChainC = section.blockChainC var blockChainC = sec.blockChainC
var parentHash []byte
LOOP: LOOP:
for { for {
if insertChain { if insertChain {
insertChain = false insertChain = false
rest, err := self.addSectionToBlockChain(section) rest, err := self.addSectionToBlockChain(sec)
if err != nil { if err != nil {
close(section.suicideC) close(sec.suicideC)
continue LOOP continue LOOP
} }
if rest == 0 { if rest == 0 {
blocksRequestsComplete = true blocksRequestsComplete = true
child := self.getChild(section) child := self.getChild(sec)
if child != nil { if child != nil {
self.connectToBlockChain(child) self.connectToBlockChain(child)
} }
@ -603,7 +792,7 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
if blockHashesRequestsComplete && blocksRequestsComplete { if blockHashesRequestsComplete && blocksRequestsComplete {
// not waiting for hashes any more // 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 break LOOP
} // otherwise suicide if no hashes coming } // otherwise suicide if no hashes coming
@ -611,11 +800,12 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
// went through all blocks in section // went through all blocks in section
if missing == 0 { if missing == 0 {
// no missing blocks // 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 blocksRequestsComplete = true
blocksRequestTimer = nil blocksRequestTimer = nil
blocksRequestTime = false blocksRequestTime = false
} else { } else {
poolLogger.DebugDetailf("[%s] section checked: missing %v/%v/%v", sectionName(sec), missing, lastMissing, depth)
// some missing blocks // some missing blocks
blocksRequests++ blocksRequests++
if len(hashes) > 0 { if len(hashes) > 0 {
@ -630,8 +820,8 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
idle++ idle++
// too many idle rounds // too many idle rounds
if idle >= blocksRequestMaxIdleRounds { 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) 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(section.suicideC) close(sec.suicideC)
} }
} else { } else {
idle = 0 idle = 0
@ -653,22 +843,39 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
// //
if ready && blocksRequestTime && !blocksRequestsComplete { 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) blocksRequestTimer = time.After(blocksRequestInterval * time.Millisecond)
blocksRequestTime = false blocksRequestTime = false
processC = offC processC = offC
} }
if blockHashesRequestTime { 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 // 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 blockHashesRequestTimer = nil
blockHashesRequestsComplete = true blockHashesRequestsComplete = true
} else { } else {
blockHashesRequests++ blockHashesRequests++
poolLogger.Debugf("[%s] hash request on root (%v total attempts)\n", sectionName(section), blockHashesRequests) poolLogger.Debugf("[%s] hash request on root (%v total attempts)\n", sectionName(sec), blockHashesRequests)
peer.requestBlockHashes(section.bottom.hash) peer.requestBlockHashes(sec.bottom.hash)
blockHashesRequestTimer = time.After(blockHashesRequestInterval * time.Millisecond) blockHashesRequestTimer = time.After(blockHashesRequestInterval * time.Millisecond)
} }
blockHashesRequestTime = false blockHashesRequestTime = false
@ -682,27 +889,27 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
// peer quit or demoted, put section in idle mode // peer quit or demoted, put section in idle mode
quitC = nil quitC = nil
go func() { go func() {
section.controlC <- nil sec.controlC <- nil
}() }()
case <-self.purgeC: case <-self.purgeC:
suicideTimer = time.After(0) suicideTimer = time.After(0)
case <-suicideTimer: case <-suicideTimer:
close(section.suicideC) close(sec.suicideC)
poolLogger.Debugf("[%s] timeout. (%v total attempts): missing %v/%v/%v", sectionName(section), blocksRequests, missing, lastMissing, depth) poolLogger.Debugf("[%s] timeout. (%v total attempts): missing %v/%v/%v", sectionName(sec), blocksRequests, missing, lastMissing, depth)
case <-section.suicideC: case <-sec.suicideC:
poolLogger.Debugf("[%s] suicide", sectionName(section)) poolLogger.Debugf("[%s] suicide", sectionName(sec))
// first delink from child and parent under chainlock // first delink from child and parent under chainlock
self.chainLock.Lock() self.chainLock.Lock()
self.link(nil, section) self.link(nil, sec)
self.link(section, nil) self.link(sec, nil)
self.chainLock.Unlock() self.chainLock.Unlock()
// delete node entries from pool index under pool lock // delete node entries from pool index under pool lock
self.lock.Lock() self.lock.Lock()
for _, node := range section.nodes { for _, node := range sec.nodes {
delete(self.pool, string(node.hash)) delete(self.pool, string(node.hash))
} }
self.lock.Unlock() self.lock.Unlock()
@ -710,20 +917,20 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
break LOOP break LOOP
case <-blocksRequestTimer: case <-blocksRequestTimer:
poolLogger.DebugDetailf("[%s] block request time", sectionName(section)) poolLogger.DebugDetailf("[%s] block request time", sectionName(sec))
blocksRequestTime = true blocksRequestTime = true
case <-blockHashesRequestTimer: case <-blockHashesRequestTimer:
poolLogger.DebugDetailf("[%s] hash request time", sectionName(section)) poolLogger.DebugDetailf("[%s] hash request time", sectionName(sec))
blockHashesRequestTime = true blockHashesRequestTime = true
case newPeer = <-section.controlC: case newPeer = <-sec.controlC:
// active -> idle // active -> idle
if peer != nil && newPeer == nil { if peer != nil && newPeer == nil {
self.procWg.Done() self.procWg.Done()
if init { 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 blocksRequestTime = false
blocksRequestTimer = nil blocksRequestTimer = nil
@ -739,11 +946,11 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
if peer == nil && newPeer != nil { if peer == nil && newPeer != nil {
self.procWg.Add(1) self.procWg.Add(1)
poolLogger.Debugf("[%s] active mode", sectionName(section)) poolLogger.Debugf("[%s] active mode", sectionName(sec))
if !blocksRequestsComplete { if !blocksRequestsComplete {
blocksRequestTime = true blocksRequestTime = true
} }
if !blockHashesRequestsComplete { if !blockHashesRequestsComplete && parentHash != nil {
blockHashesRequestTime = true blockHashesRequestTime = true
} }
if !init { if !init {
@ -753,13 +960,13 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
missing = 0 missing = 0
self.wg.Add(1) self.wg.Add(1)
self.procWg.Add(1) self.procWg.Add(1)
depth = len(section.nodes) depth = len(sec.nodes)
lastMissing = depth lastMissing = depth
// if not run at least once fully, launch iterator // if not run at least once fully, launch iterator
go func() { go func() {
var node *poolNode var node *poolNode
IT: IT:
for _, node = range section.nodes { for _, node = range sec.nodes {
select { select {
case processC <- node: case processC <- node:
case <-self.quit: case <-self.quit:
@ -771,7 +978,7 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
self.procWg.Done() self.procWg.Done()
}() }()
} else { } else {
poolLogger.Debugf("[%s] restore earlier state", sectionName(section)) poolLogger.Debugf("[%s] restore earlier state", sectionName(sec))
processC = offC processC = offC
} }
} }
@ -781,7 +988,7 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
} }
peer = newPeer peer = newPeer
case waiter := <-section.forkC: case waiter := <-sec.forkC:
// this case just blocks the process until section is split at the fork // this case just blocks the process until section is split at the fork
<-waiter <-waiter
init = false init = false
@ -794,7 +1001,7 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
init = true init = true
done = true done = true
processC = make(chan *poolNode, missing) 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 continue LOOP
} }
if ready { if ready {
@ -811,17 +1018,24 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
missing++ missing++
hashes = append(hashes, node.hash) hashes = append(hashes, node.hash)
if len(hashes) == blockBatchSize { 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) self.requestBlocks(blocksRequests, hashes)
hashes = nil hashes = nil
} }
missingC <- node missingC <- node
} else { } else {
if blockChainC == nil && i == lastMissing { if i == lastMissing {
insertChain = true 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 { if i == lastMissing && init {
done = true done = true
} }
@ -829,23 +1043,22 @@ func (self *BlockPool) processSection(section *section, nodes []*poolNode) {
case <-blockChainC: case <-blockChainC:
// closed blockChain channel indicates that the blockpool is reached // closed blockChain channel indicates that the blockpool is reached
// connected to the blockchain, insert the longest chain of blocks // 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 blockChainC = nil
// switch off hash requests in case they were on // switch off hash requests in case they were on
blockHashesRequestTime = false blockHashesRequestTime = false
blockHashesRequestTimer = nil blockHashesRequestTimer = nil
blockHashesRequestsComplete = true blockHashesRequestsComplete = true
// section root has block // 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 insertChain = true
} }
continue LOOP continue LOOP
} // select } // select
} // for } // 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() self.wg.Done()
if peer != nil { if peer != nil {
@ -917,22 +1130,28 @@ func (self *peerInfo) addSection(hash []byte, section *section) (found *section)
defer self.lock.Unlock() defer self.lock.Unlock()
key := string(hash) key := string(hash)
found = self.sections[key] 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 self.sections[key] = section
return return
} }
func (self *BlockPool) switchPeer(oldPeer, newPeer *peerInfo) { func (self *BlockPool) switchPeer(oldPeer, newPeer *peerInfo) {
if newPeer != nil { if newPeer != nil {
entry := self.get(newPeer.currentBlock) newPeer.quitC = make(chan bool)
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)
}
poolLogger.DebugDetailf("[%s] activate section processes", newPeer.id) 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 { for hash, section := range newPeer.sections {
// this will block if section process is waiting for peer lock // this will block if section process is waiting for peer lock
select { select {
@ -940,12 +1159,26 @@ func (self *BlockPool) switchPeer(oldPeer, newPeer *peerInfo) {
poolLogger.DebugDetailf("[%s][%x] section process complete - remove", newPeer.id, hash[:4]) poolLogger.DebugDetailf("[%s][%x] section process complete - remove", newPeer.id, hash[:4])
delete(newPeer.sections, hash) delete(newPeer.sections, hash)
case section.controlC <- newPeer: 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 { if oldPeer != nil {
poolLogger.DebugDetailf("[%s] quit section processes", oldPeer.id)
close(oldPeer.quitC) close(oldPeer.quitC)
} }
} }

192
eth/block_pool_test.go
View File

@ -18,7 +18,7 @@ import (
const waitTimeout = 60 // seconds const waitTimeout = 60 // seconds
var logsys = ethlogger.NewStdLogSystem(os.Stdout, log.LstdFlags, ethlogger.LogLevel(ethlogger.DebugLevel)) var logsys = ethlogger.NewStdLogSystem(os.Stdout, log.LstdFlags, ethlogger.LogLevel(ethlogger.DebugDetailLevel))
var ini = false var ini = false
@ -336,12 +336,12 @@ func (self *peerTester) AddPeer() bool {
// peer sends blockhashes if and when gets a request // peer sends blockhashes if and when gets a request
func (self *peerTester) AddBlockHashes(indexes ...int) { func (self *peerTester) AddBlockHashes(indexes ...int) {
i := 0
fmt.Printf("ready to add block hashes %v\n", indexes) fmt.Printf("ready to add block hashes %v\n", indexes)
self.waitBlockHashesRequests(indexes[0]) self.waitBlockHashesRequests(indexes[0])
fmt.Printf("adding block hashes %v\n", indexes) fmt.Printf("adding block hashes %v\n", indexes)
hashes := self.hashPool.indexesToHashes(indexes) hashes := self.hashPool.indexesToHashes(indexes)
i := 1
next := func() (hash []byte, ok bool) { next := func() (hash []byte, ok bool) {
if i < len(hashes) { if i < len(hashes) {
hash = hashes[i] hash = hashes[i]
@ -415,7 +415,7 @@ func TestAddPeer(t *testing.T) {
if blockPool.peer.id != "peer0" { if blockPool.peer.id != "peer0" {
t.Errorf("peer0 (TD=1) not set as best") t.Errorf("peer0 (TD=1) not set as best")
} }
peer0.checkBlockHashesRequests(0) // peer0.checkBlockHashesRequests(0)
best = peer2.AddPeer() best = peer2.AddPeer()
if !best { if !best {
@ -424,7 +424,7 @@ func TestAddPeer(t *testing.T) {
if blockPool.peer.id != "peer2" { if blockPool.peer.id != "peer2" {
t.Errorf("peer2 (TD=3) not set as best") t.Errorf("peer2 (TD=3) not set as best")
} }
peer2.checkBlockHashesRequests(2) peer2.waitBlocksRequests(2)
best = peer1.AddPeer() best = peer1.AddPeer()
if best { if best {
@ -449,7 +449,7 @@ func TestAddPeer(t *testing.T) {
if blockPool.peer.td.Cmp(big.NewInt(int64(4))) != 0 { if blockPool.peer.td.Cmp(big.NewInt(int64(4))) != 0 {
t.Errorf("peer2 TD not updated") t.Errorf("peer2 TD not updated")
} }
peer2.checkBlockHashesRequests(2, 3) peer2.waitBlocksRequests(3)
peer1.td = 3 peer1.td = 3
peer1.currentBlock = 2 peer1.currentBlock = 2
@ -474,7 +474,7 @@ func TestAddPeer(t *testing.T) {
if blockPool.peer.id != "peer1" { if blockPool.peer.id != "peer1" {
t.Errorf("existing peer1 (TD=3) should be set as best peer") t.Errorf("existing peer1 (TD=3) should be set as best peer")
} }
peer1.checkBlockHashesRequests(2) peer1.waitBlocksRequests(2)
blockPool.RemovePeer("peer1") blockPool.RemovePeer("peer1")
peer, best = blockPool.getPeer("peer1") peer, best = blockPool.getPeer("peer1")
@ -485,6 +485,7 @@ func TestAddPeer(t *testing.T) {
if blockPool.peer.id != "peer0" { if blockPool.peer.id != "peer0" {
t.Errorf("existing peer0 (TD=1) should be set as best peer") t.Errorf("existing peer0 (TD=1) should be set as best peer")
} }
peer0.waitBlocksRequests(0)
blockPool.RemovePeer("peer0") blockPool.RemovePeer("peer0")
peer, best = blockPool.getPeer("peer0") peer, best = blockPool.getPeer("peer0")
@ -502,7 +503,7 @@ func TestAddPeer(t *testing.T) {
if blockPool.peer.id != "peer0" { if blockPool.peer.id != "peer0" {
t.Errorf("peer0 (TD=1) should be set as best") t.Errorf("peer0 (TD=1) should be set as best")
} }
peer0.checkBlockHashesRequests(0, 0, 3) peer0.waitBlocksRequests(3)
blockPool.Stop() blockPool.Stop()
@ -513,17 +514,36 @@ func TestPeerWithKnownBlock(t *testing.T) {
_, blockPool, blockPoolTester := newTestBlockPool(t) _, blockPool, blockPoolTester := newTestBlockPool(t)
blockPoolTester.refBlockChain[0] = nil blockPoolTester.refBlockChain[0] = nil
blockPoolTester.blockChain[0] = nil blockPoolTester.blockChain[0] = nil
// hashPool, blockPool, blockPoolTester := newTestBlockPool()
blockPool.Start() blockPool.Start()
peer0 := blockPoolTester.newPeer("0", 1, 0) peer0 := blockPoolTester.newPeer("0", 1, 0)
peer0.AddPeer() peer0.AddPeer()
blockPool.Wait(waitTimeout * time.Second)
blockPool.Stop() blockPool.Stop()
// no request on known block // no request on known block
peer0.checkBlockHashesRequests() peer0.checkBlockHashesRequests()
} }
func TestPeerWithKnownParentBlock(t *testing.T) {
logInit()
_, blockPool, blockPoolTester := newTestBlockPool(t)
blockPoolTester.initRefBlockChain(1)
blockPoolTester.blockChain[0] = nil
blockPool.Start()
peer0 := blockPoolTester.newPeer("0", 1, 1)
peer0.AddPeer()
peer0.AddBlocks(0, 1)
blockPool.Wait(waitTimeout * time.Second)
blockPool.Stop()
peer0.checkBlocksRequests([]int{1})
peer0.checkBlockHashesRequests()
blockPoolTester.refBlockChain[1] = []int{}
blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
}
func TestSimpleChain(t *testing.T) { func TestSimpleChain(t *testing.T) {
logInit() logInit()
_, blockPool, blockPoolTester := newTestBlockPool(t) _, blockPool, blockPoolTester := newTestBlockPool(t)
@ -534,8 +554,9 @@ func TestSimpleChain(t *testing.T) {
peer1 := blockPoolTester.newPeer("peer1", 1, 2) peer1 := blockPoolTester.newPeer("peer1", 1, 2)
peer1.AddPeer() peer1.AddPeer()
peer1.AddBlocks(1, 2)
go peer1.AddBlockHashes(2, 1, 0) go peer1.AddBlockHashes(2, 1, 0)
peer1.AddBlocks(0, 1, 2) peer1.AddBlocks(0, 1)
blockPool.Wait(waitTimeout * time.Second) blockPool.Wait(waitTimeout * time.Second)
blockPool.Stop() blockPool.Stop()
@ -543,6 +564,26 @@ func TestSimpleChain(t *testing.T) {
blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain) blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
} }
func TestChainConnectingWithParentHash(t *testing.T) {
logInit()
_, blockPool, blockPoolTester := newTestBlockPool(t)
blockPoolTester.blockChain[0] = nil
blockPoolTester.initRefBlockChain(3)
blockPool.Start()
peer1 := blockPoolTester.newPeer("peer1", 1, 3)
peer1.AddPeer()
go peer1.AddBlocks(2, 3)
go peer1.AddBlockHashes(3, 2, 1)
peer1.AddBlocks(0, 1, 2)
blockPool.Wait(waitTimeout * time.Second)
blockPool.Stop()
blockPoolTester.refBlockChain[3] = []int{}
blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
}
func TestInvalidBlock(t *testing.T) { func TestInvalidBlock(t *testing.T) {
logInit() logInit()
_, blockPool, blockPoolTester := newTestBlockPool(t) _, blockPool, blockPoolTester := newTestBlockPool(t)
@ -554,8 +595,9 @@ func TestInvalidBlock(t *testing.T) {
peer1 := blockPoolTester.newPeer("peer1", 1, 3) peer1 := blockPoolTester.newPeer("peer1", 1, 3)
peer1.AddPeer() peer1.AddPeer()
go peer1.AddBlocks(2, 3)
go peer1.AddBlockHashes(3, 2, 1, 0) go peer1.AddBlockHashes(3, 2, 1, 0)
peer1.AddBlocks(0, 1, 2, 3) peer1.AddBlocks(0, 1, 2)
blockPool.Wait(waitTimeout * time.Second) blockPool.Wait(waitTimeout * time.Second)
blockPool.Stop() blockPool.Stop()
@ -566,7 +608,7 @@ func TestInvalidBlock(t *testing.T) {
t.Errorf("wrong error, got %v, expected %v", peer1.peerErrors[0], ErrInvalidBlock) t.Errorf("wrong error, got %v, expected %v", peer1.peerErrors[0], ErrInvalidBlock)
} }
} else { } else {
t.Errorf("expected invalid block error, got nothing") t.Errorf("expected invalid block error, got nothing %v", peer1.peerErrors)
} }
} }
@ -579,7 +621,7 @@ func TestVerifyPoW(t *testing.T) {
blockPoolTester.blockPool.verifyPoW = func(b pow.Block) bool { blockPoolTester.blockPool.verifyPoW = func(b pow.Block) bool {
bb, _ := b.(*types.Block) bb, _ := b.(*types.Block)
indexes := blockPoolTester.hashPool.hashesToIndexes([][]byte{bb.Hash()}) indexes := blockPoolTester.hashPool.hashesToIndexes([][]byte{bb.Hash()})
if indexes[0] == 1 && !first { if indexes[0] == 2 && !first {
first = true first = true
return false return false
} else { } else {
@ -590,15 +632,17 @@ func TestVerifyPoW(t *testing.T) {
blockPool.Start() blockPool.Start()
peer1 := blockPoolTester.newPeer("peer1", 1, 2) peer1 := blockPoolTester.newPeer("peer1", 1, 3)
peer1.AddPeer() peer1.AddPeer()
go peer1.AddBlockHashes(2, 1, 0) go peer1.AddBlocks(2, 3)
go peer1.AddBlockHashes(3, 2, 1, 0)
peer1.AddBlocks(0, 1, 2) peer1.AddBlocks(0, 1, 2)
peer1.AddBlocks(0, 1)
blockPool.Wait(waitTimeout * time.Second) // blockPool.Wait(waitTimeout * time.Second)
time.Sleep(1 * time.Second)
blockPool.Stop() blockPool.Stop()
blockPoolTester.refBlockChain[2] = []int{} blockPoolTester.refBlockChain[1] = []int{}
delete(blockPoolTester.refBlockChain, 2)
blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain) blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
if len(peer1.peerErrors) == 1 { if len(peer1.peerErrors) == 1 {
if peer1.peerErrors[0] != ErrInvalidPoW { if peer1.peerErrors[0] != ErrInvalidPoW {
@ -620,8 +664,9 @@ func TestMultiSectionChain(t *testing.T) {
peer1 := blockPoolTester.newPeer("peer1", 1, 5) peer1 := blockPoolTester.newPeer("peer1", 1, 5)
peer1.AddPeer() peer1.AddPeer()
go peer1.AddBlocks(4, 5)
go peer1.AddBlockHashes(5, 4, 3) go peer1.AddBlockHashes(5, 4, 3)
go peer1.AddBlocks(2, 3, 4, 5) go peer1.AddBlocks(2, 3, 4)
go peer1.AddBlockHashes(3, 2, 1, 0) go peer1.AddBlockHashes(3, 2, 1, 0)
peer1.AddBlocks(0, 1, 2) peer1.AddBlocks(0, 1, 2)
@ -641,14 +686,17 @@ func TestNewBlocksOnPartialChain(t *testing.T) {
peer1 := blockPoolTester.newPeer("peer1", 1, 5) peer1 := blockPoolTester.newPeer("peer1", 1, 5)
peer1.AddPeer() peer1.AddPeer()
go peer1.AddBlocks(4, 5) // partially complete section
go peer1.AddBlockHashes(5, 4, 3) go peer1.AddBlockHashes(5, 4, 3)
peer1.AddBlocks(2, 3) // partially complete section peer1.AddBlocks(3, 4) // partially complete section
// peer1 found new blocks // peer1 found new blocks
peer1.td = 2 peer1.td = 2
peer1.currentBlock = 7 peer1.currentBlock = 7
peer1.AddPeer() peer1.AddPeer()
go peer1.AddBlocks(6, 7)
go peer1.AddBlockHashes(7, 6, 5) go peer1.AddBlockHashes(7, 6, 5)
go peer1.AddBlocks(3, 4, 5, 6, 7) go peer1.AddBlocks(2, 3)
go peer1.AddBlocks(5, 6)
go peer1.AddBlockHashes(3, 2, 1, 0) // tests that hash request from known chain root is remembered go peer1.AddBlockHashes(3, 2, 1, 0) // tests that hash request from known chain root is remembered
peer1.AddBlocks(0, 1, 2) peer1.AddBlocks(0, 1, 2)
@ -658,35 +706,37 @@ func TestNewBlocksOnPartialChain(t *testing.T) {
blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain) blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
} }
func TestPeerSwitch(t *testing.T) { func TestPeerSwitchUp(t *testing.T) {
logInit() logInit()
_, blockPool, blockPoolTester := newTestBlockPool(t) _, blockPool, blockPoolTester := newTestBlockPool(t)
blockPoolTester.blockChain[0] = nil blockPoolTester.blockChain[0] = nil
blockPoolTester.initRefBlockChain(6) blockPoolTester.initRefBlockChain(7)
blockPool.Start() blockPool.Start()
peer1 := blockPoolTester.newPeer("peer1", 1, 5) peer1 := blockPoolTester.newPeer("peer1", 1, 6)
peer2 := blockPoolTester.newPeer("peer2", 2, 6) peer2 := blockPoolTester.newPeer("peer2", 2, 7)
peer2.blocksRequestsMap = peer1.blocksRequestsMap peer2.blocksRequestsMap = peer1.blocksRequestsMap
peer1.AddPeer() peer1.AddPeer()
go peer1.AddBlockHashes(5, 4, 3) go peer1.AddBlocks(5, 6)
go peer1.AddBlockHashes(6, 5, 4, 3) //
peer1.AddBlocks(2, 3) // section partially complete, block 3 will be preserved after peer demoted peer1.AddBlocks(2, 3) // section partially complete, block 3 will be preserved after peer demoted
peer2.AddPeer() // peer2 is promoted as best peer, peer1 is demoted peer2.AddPeer() // peer2 is promoted as best peer, peer1 is demoted
go peer2.AddBlockHashes(6, 5) // go peer2.AddBlocks(6, 7)
go peer2.AddBlocks(4, 5, 6) // tests that block request for earlier section is remembered go peer2.AddBlockHashes(7, 6) //
go peer2.AddBlocks(4, 5) // tests that block request for earlier section is remembered
go peer1.AddBlocks(3, 4) // tests that connecting section by demoted peer is remembered and blocks are accepted from demoted peer go peer1.AddBlocks(3, 4) // tests that connecting section by demoted peer is remembered and blocks are accepted from demoted peer
go peer2.AddBlockHashes(3, 2, 1, 0) // tests that known chain section is activated, hash requests from 3 is remembered go peer2.AddBlockHashes(3, 2, 1, 0) // tests that known chain section is activated, hash requests from 3 is remembered
peer2.AddBlocks(0, 1, 2) // final blocks linking to blockchain sent peer2.AddBlocks(0, 1, 2) // final blocks linking to blockchain sent
blockPool.Wait(waitTimeout * time.Second) blockPool.Wait(waitTimeout * time.Second)
blockPool.Stop() blockPool.Stop()
blockPoolTester.refBlockChain[6] = []int{} blockPoolTester.refBlockChain[7] = []int{}
blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain) blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
} }
func TestPeerDownSwitch(t *testing.T) { func TestPeerSwitchDown(t *testing.T) {
logInit() logInit()
_, blockPool, blockPoolTester := newTestBlockPool(t) _, blockPool, blockPoolTester := newTestBlockPool(t)
blockPoolTester.blockChain[0] = nil blockPoolTester.blockChain[0] = nil
@ -698,12 +748,39 @@ func TestPeerDownSwitch(t *testing.T) {
peer2.blocksRequestsMap = peer1.blocksRequestsMap peer2.blocksRequestsMap = peer1.blocksRequestsMap
peer2.AddPeer() peer2.AddPeer()
go peer2.AddBlockHashes(6, 5, 4)
peer2.AddBlocks(5, 6) // partially complete, section will be preserved peer2.AddBlocks(5, 6) // partially complete, section will be preserved
go peer2.AddBlockHashes(6, 5, 4) //
peer2.AddBlocks(4, 5) //
blockPool.RemovePeer("peer2") // peer2 disconnects blockPool.RemovePeer("peer2") // peer2 disconnects
peer1.AddPeer() // inferior peer1 is promoted as best peer peer1.AddPeer() // inferior peer1 is promoted as best peer
go peer1.AddBlockHashes(4, 3, 2, 1, 0) // go peer1.AddBlockHashes(4, 3, 2, 1, 0) //
go peer1.AddBlocks(3, 4, 5) // tests that section set by demoted peer is remembered and blocks are accepted go peer1.AddBlocks(3, 4) // tests that section set by demoted peer is remembered and blocks are accepted , this connects the chain sections together
peer1.AddBlocks(0, 1, 2, 3)
blockPool.Wait(waitTimeout * time.Second)
blockPool.Stop()
blockPoolTester.refBlockChain[6] = []int{}
blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
}
func TestPeerCompleteSectionSwitchDown(t *testing.T) {
logInit()
_, blockPool, blockPoolTester := newTestBlockPool(t)
blockPoolTester.blockChain[0] = nil
blockPoolTester.initRefBlockChain(6)
blockPool.Start()
peer1 := blockPoolTester.newPeer("peer1", 1, 4)
peer2 := blockPoolTester.newPeer("peer2", 2, 6)
peer2.blocksRequestsMap = peer1.blocksRequestsMap
peer2.AddPeer()
peer2.AddBlocks(5, 6) // partially complete, section will be preserved
go peer2.AddBlockHashes(6, 5, 4) //
peer2.AddBlocks(3, 4, 5) // complete section
blockPool.RemovePeer("peer2") // peer2 disconnects
peer1.AddPeer() // inferior peer1 is promoted as best peer
peer1.AddBlockHashes(4, 3, 2, 1, 0) // tests that hash request are directly connecting if the head block exists
peer1.AddBlocks(0, 1, 2, 3) peer1.AddBlocks(0, 1, 2, 3)
blockPool.Wait(waitTimeout * time.Second) blockPool.Wait(waitTimeout * time.Second)
@ -725,11 +802,13 @@ func TestPeerSwitchBack(t *testing.T) {
peer2.blocksRequestsMap = peer1.blocksRequestsMap peer2.blocksRequestsMap = peer1.blocksRequestsMap
peer2.AddPeer() peer2.AddPeer()
go peer2.AddBlocks(7, 8)
go peer2.AddBlockHashes(8, 7, 6) go peer2.AddBlockHashes(8, 7, 6)
go peer2.AddBlockHashes(6, 5, 4) go peer2.AddBlockHashes(6, 5, 4)
peer2.AddBlocks(4, 5) // section partially complete peer2.AddBlocks(4, 5) // section partially complete
peer1.AddPeer() // peer1 is promoted as best peer peer1.AddPeer() // peer1 is promoted as best peer
go peer1.AddBlockHashes(11, 10) // only gives useless results go peer1.AddBlocks(10, 11) //
peer1.AddBlockHashes(11, 10) // only gives useless results
blockPool.RemovePeer("peer1") // peer1 disconnects blockPool.RemovePeer("peer1") // peer1 disconnects
go peer2.AddBlockHashes(4, 3, 2, 1, 0) // tests that asking for hashes from 4 is remembered go peer2.AddBlockHashes(4, 3, 2, 1, 0) // tests that asking for hashes from 4 is remembered
go peer2.AddBlocks(3, 4, 5, 6, 7, 8) // tests that section 4, 5, 6 and 7, 8 are remembered for missing blocks go peer2.AddBlocks(3, 4, 5, 6, 7, 8) // tests that section 4, 5, 6 and 7, 8 are remembered for missing blocks
@ -756,11 +835,13 @@ func TestForkSimple(t *testing.T) {
peer2.blocksRequestsMap = peer1.blocksRequestsMap peer2.blocksRequestsMap = peer1.blocksRequestsMap
peer1.AddPeer() peer1.AddPeer()
go peer1.AddBlocks(8, 9)
go peer1.AddBlockHashes(9, 8, 7, 3, 2) go peer1.AddBlockHashes(9, 8, 7, 3, 2)
peer1.AddBlocks(1, 2, 3, 7, 8, 9) peer1.AddBlocks(1, 2, 3, 7, 8)
peer2.AddPeer() // peer2 is promoted as best peer peer2.AddPeer() // peer2 is promoted as best peer
go peer2.AddBlocks(5, 6) //
go peer2.AddBlockHashes(6, 5, 4, 3, 2) // fork on 3 -> 4 (earlier child: 7) go peer2.AddBlockHashes(6, 5, 4, 3, 2) // fork on 3 -> 4 (earlier child: 7)
go peer2.AddBlocks(1, 2, 3, 4, 5, 6) go peer2.AddBlocks(1, 2, 3, 4, 5)
go peer2.AddBlockHashes(2, 1, 0) go peer2.AddBlockHashes(2, 1, 0)
peer2.AddBlocks(0, 1, 2) peer2.AddBlocks(0, 1, 2)
@ -790,23 +871,24 @@ func TestForkSwitchBackByNewBlocks(t *testing.T) {
peer2.blocksRequestsMap = peer1.blocksRequestsMap peer2.blocksRequestsMap = peer1.blocksRequestsMap
peer1.AddPeer() peer1.AddPeer()
go peer1.AddBlockHashes(9, 8, 7, 3, 2) peer1.AddBlocks(8, 9) //
peer1.AddBlocks(8, 9) // partial section go peer1.AddBlockHashes(9, 8, 7, 3, 2) //
peer1.AddBlocks(7, 8) // partial section
peer2.AddPeer() // peer2.AddPeer() //
peer2.AddBlocks(5, 6) //
go peer2.AddBlockHashes(6, 5, 4, 3, 2) // peer2 forks on block 3 go peer2.AddBlockHashes(6, 5, 4, 3, 2) // peer2 forks on block 3
peer2.AddBlocks(1, 2, 3, 4, 5, 6) // peer2.AddBlocks(1, 2, 3, 4, 5) //
// peer1 finds new blocks // peer1 finds new blocks
peer1.td = 3 peer1.td = 3
peer1.currentBlock = 11 peer1.currentBlock = 11
peer1.AddPeer() peer1.AddPeer()
go peer1.AddBlocks(10, 11)
go peer1.AddBlockHashes(11, 10, 9) go peer1.AddBlockHashes(11, 10, 9)
peer1.AddBlocks(7, 8, 9, 10, 11) peer1.AddBlocks(9, 10)
go peer1.AddBlockHashes(7, 3) // tests that hash request from fork root is remembered go peer1.AddBlocks(3, 7) // tests that block requests on earlier fork are remembered
go peer1.AddBlocks(3, 7) // tests that block requests on earlier fork are remembered
// go peer1.AddBlockHashes(1, 0) // tests that hash request from root of connecting chain section (added by demoted peer) is remembered
go peer1.AddBlockHashes(2, 1, 0) // tests that hash request from root of connecting chain section (added by demoted peer) is remembered go peer1.AddBlockHashes(2, 1, 0) // tests that hash request from root of connecting chain section (added by demoted peer) is remembered
peer1.AddBlocks(0, 1, 2, 3) peer1.AddBlocks(0, 1)
blockPool.Wait(waitTimeout * time.Second) blockPool.Wait(waitTimeout * time.Second)
blockPool.Stop() blockPool.Stop()
@ -834,16 +916,18 @@ func TestForkSwitchBackByPeerSwitchBack(t *testing.T) {
peer2.blocksRequestsMap = peer1.blocksRequestsMap peer2.blocksRequestsMap = peer1.blocksRequestsMap
peer1.AddPeer() peer1.AddPeer()
go peer1.AddBlocks(8, 9)
go peer1.AddBlockHashes(9, 8, 7, 3, 2) go peer1.AddBlockHashes(9, 8, 7, 3, 2)
peer1.AddBlocks(8, 9) peer1.AddBlocks(7, 8)
peer2.AddPeer() // peer2.AddPeer()
go peer2.AddBlocks(5, 6) //
go peer2.AddBlockHashes(6, 5, 4, 3, 2) // peer2 forks on block 3 go peer2.AddBlockHashes(6, 5, 4, 3, 2) // peer2 forks on block 3
peer2.AddBlocks(2, 3, 4, 5, 6) // peer2.AddBlocks(2, 3, 4, 5) //
blockPool.RemovePeer("peer2") // peer2 disconnects, peer1 is promoted again as best peer blockPool.RemovePeer("peer2") // peer2 disconnects, peer1 is promoted again as best peer
peer1.AddBlockHashes(7, 3) // tests that hash request from fork root is remembered go peer1.AddBlocks(3, 7) // tests that block requests on earlier fork are remembered and orphan section relinks to existing parent block
go peer1.AddBlocks(3, 7, 8) // tests that block requests on earlier fork are remembered go peer1.AddBlocks(1, 2) //
go peer1.AddBlockHashes(2, 1, 0) // go peer1.AddBlockHashes(2, 1, 0) //
peer1.AddBlocks(0, 1, 2, 3) peer1.AddBlocks(0, 1)
blockPool.Wait(waitTimeout * time.Second) blockPool.Wait(waitTimeout * time.Second)
blockPool.Stop() blockPool.Stop()
@ -871,17 +955,19 @@ func TestForkCompleteSectionSwitchBackByPeerSwitchBack(t *testing.T) {
peer2.blocksRequestsMap = peer1.blocksRequestsMap peer2.blocksRequestsMap = peer1.blocksRequestsMap
peer1.AddPeer() peer1.AddPeer()
go peer1.AddBlocks(8, 9)
go peer1.AddBlockHashes(9, 8, 7) go peer1.AddBlockHashes(9, 8, 7)
peer1.AddBlocks(3, 7, 8, 9) // make sure this section is complete peer1.AddBlocks(3, 7, 8) // make sure this section is complete
time.Sleep(1 * time.Second) time.Sleep(1 * time.Second)
go peer1.AddBlockHashes(7, 3, 2) // block 3/7 is section boundary go peer1.AddBlockHashes(7, 3, 2) // block 3/7 is section boundary
peer1.AddBlocks(2, 3) // partially complete sections peer1.AddBlocks(2, 3) // partially complete sections block 2 missing
peer2.AddPeer() // peer2.AddPeer() //
go peer2.AddBlocks(5, 6) //
go peer2.AddBlockHashes(6, 5, 4, 3, 2) // peer2 forks on block 3 go peer2.AddBlockHashes(6, 5, 4, 3, 2) // peer2 forks on block 3
peer2.AddBlocks(2, 3, 4, 5, 6) // block 2 still missing. peer2.AddBlocks(2, 3, 4, 5) // block 2 still missing.
blockPool.RemovePeer("peer2") // peer2 disconnects, peer1 is promoted again as best peer blockPool.RemovePeer("peer2") // peer2 disconnects, peer1 is promoted again as best peer
peer1.AddBlockHashes(7, 3) // tests that hash request from fork root is remembered even though section process completed // peer1.AddBlockHashes(7, 3) // tests that hash request from fork root is remembered even though section process completed
go peer1.AddBlockHashes(2, 1, 0) // go peer1.AddBlockHashes(2, 1, 0) //
peer1.AddBlocks(0, 1, 2) peer1.AddBlocks(0, 1, 2)
blockPool.Wait(waitTimeout * time.Second) blockPool.Wait(waitTimeout * time.Second)

2
eth/error.go
View File

@ -16,6 +16,7 @@ const (
ErrInvalidBlock ErrInvalidBlock
ErrInvalidPoW ErrInvalidPoW
ErrUnrequestedBlock ErrUnrequestedBlock
ErrInsufficientChainInfo
) )
var errorToString = map[int]string{ var errorToString = map[int]string{
@ -30,6 +31,7 @@ var errorToString = map[int]string{
ErrInvalidBlock: "Invalid block", ErrInvalidBlock: "Invalid block",
ErrInvalidPoW: "Invalid PoW", ErrInvalidPoW: "Invalid PoW",
ErrUnrequestedBlock: "Unrequested block", ErrUnrequestedBlock: "Unrequested block",
ErrInsufficientChainInfo: "Insufficient chain info",
} }
type protocolError struct { type protocolError struct {

10
eth/protocol.go
View File

@ -211,16 +211,6 @@ func (self *ethProtocol) handle() error {
// uses AddPeer followed by AddHashes, AddBlock only if peer is the best peer // uses AddPeer followed by AddHashes, AddBlock only if peer is the best peer
// (or selected as new best peer) // (or selected as new best peer)
if self.blockPool.AddPeer(request.TD, hash, self.id, self.requestBlockHashes, self.requestBlocks, self.protoErrorDisconnect) { if self.blockPool.AddPeer(request.TD, hash, self.id, self.requestBlockHashes, self.requestBlocks, self.protoErrorDisconnect) {
called := true
iter := func() ([]byte, bool) {
if called {
called = false
return hash, true
} else {
return nil, false
}
}
self.blockPool.AddBlockHashes(iter, self.id)
self.blockPool.AddBlock(request.Block, self.id) self.blockPool.AddBlock(request.Block, self.id)
} }

6
eth/test/tests/02.sh
View File

@ -12,8 +12,8 @@ EOF
peer 11 01 peer 11 01
peer 12 02 peer 12 02
P13ID=$PID P12ID=$PID
test_node $NAME "" -loglevel 5 $JSFILE test_node $NAME "" -loglevel 5 $JSFILE
sleep 0.5 sleep 0.3
kill $P13ID kill $P12ID

4
eth/test/tests/03.sh
View File

@ -1,10 +1,10 @@
#!/bin/bash #!/bin/bash
TIMEOUT=35 TIMEOUT=12
cat >> $JSFILE <<EOF cat >> $JSFILE <<EOF
eth.addPeer("localhost:30311"); eth.addPeer("localhost:30311");
sleep(30000); sleep(10000);
eth.export("$CHAIN_TEST"); eth.export("$CHAIN_TEST");
EOF EOF

6
eth/test/tests/common.sh
View File

@ -3,14 +3,14 @@
# launched by run.sh # launched by run.sh
function test_node { function test_node {
rm -rf $DIR/$1 rm -rf $DIR/$1
ARGS="-datadir $DIR/$1 -debug debug -seed=false -shh=false -id test$1" ARGS="-datadir $DIR/$1 -debug debug -seed=false -shh=false -id test$1 -port 303$1"
if [ "" != "$2" ]; then if [ "" != "$2" ]; then
chain="chains/$2.chain" chain="chains/$2.chain"
echo "import chain $chain" echo "import chain $chain"
$ETH $ARGS -loglevel 3 -chain $chain | grep CLI |grep import $ETH $ARGS -loglevel 3 -chain $chain | grep CLI |grep import
fi fi
echo "starting test node $1 with extra args ${@:3}" echo "starting test node $1 with args $ARGS ${@:3}"
$ETH $ARGS -port 303$1 ${@:3} & $ETH $ARGS ${@:3} &
PID=$! PID=$!
PIDS="$PIDS $PID" PIDS="$PIDS $PID"
} }