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authorobscuren <geffobscura@gmail.com>2015-04-21 18:03:02 +0800
committerobscuren <geffobscura@gmail.com>2015-04-21 18:03:02 +0800
commitf4cd66dc009191f51fc47d9c218c1073a1552bdf (patch)
tree62ccd1501fc52a4f4606c8bee0f00bc99756c088
parented0817c55dc45290d9de594fea28f7bc35d564da (diff)
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blockpool: deleted
-rw-r--r--blockpool/blockpool.go911
-rw-r--r--blockpool/blockpool_test.go433
-rw-r--r--blockpool/blockpool_util_test.go373
-rw-r--r--blockpool/config_test.go49
-rw-r--r--blockpool/errors_test.go224
-rw-r--r--blockpool/peers.go639
-rw-r--r--blockpool/peers_test.go211
-rw-r--r--blockpool/section.go673
-rw-r--r--blockpool/status.go111
-rw-r--r--blockpool/status_test.go244
-rw-r--r--blockpool/test/hash_pool.go55
-rw-r--r--blockpool/test/logger.go74
-rw-r--r--blockpool/test/util.go41
13 files changed, 0 insertions, 4038 deletions
diff --git a/blockpool/blockpool.go b/blockpool/blockpool.go
deleted file mode 100644
index a60b6f43c..000000000
--- a/blockpool/blockpool.go
+++ /dev/null
@@ -1,911 +0,0 @@
-package blockpool
-
-import (
- "fmt"
- "math/big"
- "sync"
- "time"
-
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/core"
- "github.com/ethereum/go-ethereum/core/types"
- "github.com/ethereum/go-ethereum/errs"
- "github.com/ethereum/go-ethereum/event"
- "github.com/ethereum/go-ethereum/logger"
- "github.com/ethereum/go-ethereum/logger/glog"
- "github.com/ethereum/go-ethereum/pow"
-)
-
-var (
- // max number of block hashes sent in one request
- blockHashesBatchSize = 256
- // max number of blocks sent in one request
- blockBatchSize = 64
- // interval between two consecutive block checks (and requests)
- blocksRequestInterval = 3 * time.Second
- // level of redundancy in block requests sent
- blocksRequestRepetition = 1
- // interval between two consecutive block hash checks (and requests)
- blockHashesRequestInterval = 3 * time.Second
- // max number of idle iterations, ie., check through a section without new blocks coming in
- blocksRequestMaxIdleRounds = 20
- // timeout interval: max time allowed for peer without sending a block hash
- blockHashesTimeout = 60 * time.Second
- // timeout interval: max time allowed for peer without sending a block
- blocksTimeout = 60 * time.Second
- // timeout interval: max time allowed for best peer to remain idle (not send new block after sync complete)
- idleBestPeerTimeout = 60 * time.Second
- // duration of suspension after peer fatal error during which peer is not allowed to reconnect
- peerSuspensionInterval = 300 * time.Second
- // status is logged every statusUpdateInterval
- statusUpdateInterval = 3 * time.Second
- //
- nodeCacheSize = 1000
-)
-
-// blockpool config, values default to constants
-type Config struct {
- BlockHashesBatchSize int
- BlockBatchSize int
- BlocksRequestRepetition int
- BlocksRequestMaxIdleRounds int
- NodeCacheSize int
- BlockHashesRequestInterval time.Duration
- BlocksRequestInterval time.Duration
- BlockHashesTimeout time.Duration
- BlocksTimeout time.Duration
- IdleBestPeerTimeout time.Duration
- PeerSuspensionInterval time.Duration
- StatusUpdateInterval time.Duration
-}
-
-// blockpool errors
-const (
- ErrInvalidBlock = iota
- ErrInvalidPoW
- ErrInsufficientChainInfo
- ErrIdleTooLong
- ErrIncorrectTD
- ErrUnrequestedBlock
-)
-
-// error descriptions
-var errorToString = map[int]string{
- ErrInvalidBlock: "Invalid block", // fatal
- ErrInvalidPoW: "Invalid PoW", // fatal
- ErrInsufficientChainInfo: "Insufficient chain info", // fatal
- ErrIdleTooLong: "Idle too long", // fatal
- ErrIncorrectTD: "Incorrect Total Difficulty", // should be fatal, not now temporarily
- ErrUnrequestedBlock: "Unrequested block",
-}
-
-// error severity
-func severity(code int) logger.LogLevel {
- switch code {
- case ErrIncorrectTD:
- return logger.WarnLevel
- case ErrUnrequestedBlock:
- return logger.WarnLevel
- default:
- return logger.ErrorLevel
- }
-}
-
-// init initialises the Config, zero values fall back to constants
-func (self *Config) init() {
- if self.BlockHashesBatchSize == 0 {
- self.BlockHashesBatchSize = blockHashesBatchSize
- }
- if self.BlockBatchSize == 0 {
- self.BlockBatchSize = blockBatchSize
- }
- if self.BlocksRequestRepetition == 0 {
- self.BlocksRequestRepetition = blocksRequestRepetition
- }
- if self.BlocksRequestMaxIdleRounds == 0 {
- self.BlocksRequestMaxIdleRounds = blocksRequestMaxIdleRounds
- }
- if self.BlockHashesRequestInterval == 0 {
- self.BlockHashesRequestInterval = blockHashesRequestInterval
- }
- if self.BlocksRequestInterval == 0 {
- self.BlocksRequestInterval = blocksRequestInterval
- }
- if self.BlockHashesTimeout == 0 {
- self.BlockHashesTimeout = blockHashesTimeout
- }
- if self.BlocksTimeout == 0 {
- self.BlocksTimeout = blocksTimeout
- }
- if self.IdleBestPeerTimeout == 0 {
- self.IdleBestPeerTimeout = idleBestPeerTimeout
- }
- if self.PeerSuspensionInterval == 0 {
- self.PeerSuspensionInterval = peerSuspensionInterval
- }
- if self.NodeCacheSize == 0 {
- self.NodeCacheSize = nodeCacheSize
- }
- if self.StatusUpdateInterval == 0 {
- self.StatusUpdateInterval = statusUpdateInterval
- }
-}
-
-// node is the basic unit of the internal model of block chain/tree in the blockpool
-type node struct {
- lock sync.RWMutex
- hash common.Hash
- block *types.Block
- hashBy string
- blockBy string
- peers map[string]bool
- td *big.Int
-}
-
-type index struct {
- int
-}
-
-// entry is the struct kept and indexed in the pool
-type entry struct {
- node *node
- section *section
- index *index
-}
-
-type BlockPool struct {
- Config *Config
-
- // the minimal interface with blockchain manager
- hasBlock func(hash common.Hash) bool // query if block is known
- insertChain func(types.Blocks) error // add section to blockchain
- verifyPoW func(pow.Block) bool // soft PoW verification
- chainEvents *event.TypeMux // ethereum eventer for chainEvents
-
- tdSub event.Subscription // subscription to core.ChainHeadEvent
- td *big.Int // our own total difficulty
-
- pool map[common.Hash]*entry // the actual blockpool
- peers *peers // peers manager in peers.go
-
- status *status // info about blockpool (UI interface) in status.go
-
- lock sync.RWMutex
- chainLock sync.RWMutex
- // alloc-easy pool of hash slices
- hashSlicePool chan []common.Hash
-
- nodeCache map[common.Hash]*node
- nodeCacheLock sync.RWMutex
- nodeCacheList []common.Hash
-
- // waitgroup is used in tests to wait for result-critical routines
- // as well as in determining idle / syncing status
- wg sync.WaitGroup //
- quit chan bool // chan used for quitting parallel routines
- running bool //
-}
-
-// public constructor
-// after blockpool returned, config can be set
-// BlockPool.Start will call Config.init to set missing values
-func New(
- hasBlock func(hash common.Hash) bool,
- insertChain func(types.Blocks) error,
- verifyPoW func(pow.Block) bool,
- chainEvents *event.TypeMux,
- td *big.Int,
-) *BlockPool {
-
- return &BlockPool{
- Config: &Config{},
- hasBlock: hasBlock,
- insertChain: insertChain,
- verifyPoW: verifyPoW,
- chainEvents: chainEvents,
- td: td,
- }
-}
-
-// allows restart
-func (self *BlockPool) Start() {
- self.lock.Lock()
- defer self.lock.Unlock()
-
- if self.running {
- return
- }
-
- // set missing values
- self.Config.init()
-
- self.hashSlicePool = make(chan []common.Hash, 150)
- self.nodeCache = make(map[common.Hash]*node)
- self.status = newStatus()
- self.quit = make(chan bool)
- self.pool = make(map[common.Hash]*entry)
- self.running = true
-
- self.peers = &peers{
- errors: &errs.Errors{
- Package: "Blockpool",
- Errors: errorToString,
- Level: severity,
- },
- peers: make(map[string]*peer),
- blacklist: make(map[string]time.Time),
- status: self.status,
- bp: self,
- }
-
- // subscribe and listen to core.ChainHeadEvent{} for uptodate TD
- self.tdSub = self.chainEvents.Subscribe(core.ChainHeadEvent{})
-
- // status update interval
- timer := time.NewTicker(self.Config.StatusUpdateInterval)
- go func() {
- for {
- select {
- case <-self.quit:
- return
- case event := <-self.tdSub.Chan():
- if ev, ok := event.(core.ChainHeadEvent); ok {
- td := ev.Block.Td
- var height *big.Int
- if (ev.Block.HeaderHash == common.Hash{}) {
- height = ev.Block.Header().Number
- }
- glog.V(logger.Detail).Infof("ChainHeadEvent: height: %v, td: %v, hash: %s", height, td, hex(ev.Block.Hash()))
- self.setTD(td)
- self.peers.lock.Lock()
-
- if best := self.peers.best; best != nil {
- // only switch if we strictly go above otherwise we may stall if only
- if td.Cmp(best.td) > 0 {
- self.peers.best = nil
- self.switchPeer(best, nil)
- }
- }
- self.peers.lock.Unlock()
- }
- case <-timer.C:
- glog.V(logger.Detail).Infof("status:\n%v", self.Status())
- }
- }
- }()
- glog.V(logger.Info).Infoln("Blockpool started")
-}
-
-func (self *BlockPool) Stop() {
- self.lock.Lock()
- if !self.running {
- self.lock.Unlock()
- return
- }
- self.running = false
-
- self.lock.Unlock()
-
- glog.V(logger.Info).Infoln("Stopping...")
-
- self.tdSub.Unsubscribe()
- close(self.quit)
-
- self.lock.Lock()
- self.peers = nil
- self.pool = nil
- self.lock.Unlock()
-
- glog.V(logger.Info).Infoln("Stopped")
-}
-
-// Wait blocks until active processes finish
-func (self *BlockPool) Wait(t time.Duration) {
- self.lock.Lock()
- if !self.running {
- self.lock.Unlock()
- return
- }
- self.lock.Unlock()
-
- glog.V(logger.Info).Infoln("Waiting for processes to complete...")
- w := make(chan bool)
- go func() {
- self.wg.Wait()
- close(w)
- }()
-
- select {
- case <-w:
- glog.V(logger.Info).Infoln("Processes complete")
- case <-time.After(t):
- glog.V(logger.Warn).Infoln("Timeout")
- }
-}
-
-/*
-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
-
-Called a second time with the same peer id, it is used to update chain info for a peer.
-This is used when a new (mined) block message is received.
-
-RemovePeer needs to be called when the peer disconnects.
-
-Peer info is currently not persisted across disconnects (or sessions) except for suspension
-
-*/
-func (self *BlockPool) AddPeer(
-
- td *big.Int, currentBlockHash common.Hash,
- peerId string,
- requestBlockHashes func(common.Hash) error,
- requestBlocks func([]common.Hash) error,
- peerError func(*errs.Error),
-
-) (best bool, suspended bool) {
-
- return self.peers.addPeer(td, currentBlockHash, peerId, requestBlockHashes, requestBlocks, peerError)
-}
-
-// RemovePeer needs to be called when the peer disconnects
-func (self *BlockPool) RemovePeer(peerId string) {
- self.peers.removePeer(peerId, true)
-}
-
-/*
-AddBlockHashes
-
-Entry point for eth protocol to add block hashes received via BlockHashesMsg
-
-Only hashes from the best peer are handled
-
-Initiates further hash requests until a known parent is reached (unless cancelled by a peerSwitch event, i.e., when a better peer becomes best peer)
-Launches all block request processes on each chain section
-
-The first argument is an iterator function. Using this block hashes are decoded from the rlp message payload on demand. As a result, AddBlockHashes needs to run synchronously for one peer since the message is discarded if the caller thread returns.
-*/
-func (self *BlockPool) AddBlockHashes(next func() (common.Hash, bool), peerId string) {
-
- bestpeer, best := self.peers.getPeer(peerId)
- if !best {
- return
- }
- // bestpeer is still the best peer
-
- self.wg.Add(1)
- defer func() { self.wg.Done() }()
-
- self.status.lock.Lock()
- self.status.activePeers[bestpeer.id]++
- self.status.lock.Unlock()
-
- var n int
- var hash common.Hash
- var ok, headSection, peerswitch bool
- var sec, child, parent *section
- var entry *entry
- var nodes []*node
-
- hash, ok = next()
- bestpeer.lock.RLock()
-
- glog.V(logger.Debug).Infof("AddBlockHashes: peer <%s> starting from [%s] (peer head: %s)", peerId, hex(bestpeer.parentHash), hex(bestpeer.currentBlockHash))
-
- // first check if we are building the head section of a peer's chain
- if bestpeer.parentHash == hash {
- if self.hasBlock(bestpeer.currentBlockHash) {
- bestpeer.lock.RUnlock()
- return
- }
- /*
- When peer is promoted in switchPeer, a new header section process is launched.
- Once the head section skeleton is actually created here, it is signaled to the process
- so that it can quit.
- In the special case that the node for parent of the head block is found in the blockpool
- (with or without fetched block), a singleton section containing only the head block node is created.
- */
- headSection = true
- if entry := self.get(bestpeer.currentBlockHash); entry == nil {
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s) head section starting from [%s] ", peerId, hex(bestpeer.currentBlockHash), hex(bestpeer.parentHash))
- // if head block is not yet in the pool, create entry and start node list for section
- self.nodeCacheLock.Lock()
- n := self.findOrCreateNode(bestpeer.currentBlockHash, peerId)
- n.block = bestpeer.currentBlock
- n.blockBy = peerId
- n.td = bestpeer.td
- self.nodeCacheLock.Unlock()
-
- // nodes is a list of nodes in one section ordered top-bottom (old to young)
- nodes = append(nodes, n)
- } else {
- // otherwise set child section iff found node is the root of a section
- // this is a possible scenario when a singleton head section was created
- // on an earlier occasion when this peer or another with the same block was best peer
- if entry.node == entry.section.bottom {
- child = entry.section
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s>: connects to child section root %s", peerId, hex(bestpeer.currentBlockHash))
- }
- }
- } else {
- // otherwise : we are not building the head section of the peer
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s) section starting from [%s] ", peerId, hex(bestpeer.currentBlockHash), hex(hash))
- }
- // the switch channel signals peerswitch event
- bestpeer.lock.RUnlock()
-
- // iterate over hashes coming from peer (first round we have hash set above)
-LOOP:
- for ; ok; hash, ok = next() {
- n++
- select {
- case <-self.quit:
- // global quit for blockpool
- return
-
- case <-bestpeer.switchC:
- // if the peer is demoted, no more hashes read
- glog.V(logger.Detail).Infof("AddBlockHashes: demoted peer <%s> (head: %s)", peerId, hex(bestpeer.currentBlockHash), hex(hash))
- peerswitch = true
- break LOOP
- default:
- }
-
- // if we reach the blockchain we stop reading further blockhashes
- if self.hasBlock(hash) {
- // check if known block connecting the downloaded chain to our blockchain
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s) found block %s in the blockchain", peerId, hex(bestpeer.currentBlockHash), hex(hash))
- if len(nodes) == 1 {
- glog.V(logger.Detail).Infof("AddBlockHashes: singleton section pushed to blockchain peer <%s> (head: %s) found block %s in the blockchain", peerId, hex(bestpeer.currentBlockHash), hex(hash))
-
- // create new section if needed and push it to the blockchain
- sec = self.newSection(nodes)
- sec.addSectionToBlockChain(bestpeer)
- } else {
-
- /*
- not added hash yet but according to peer child section built
- earlier chain connects with blockchain
- this maybe a potential vulnarability
- the root block arrives (or already there but its parenthash was not pointing to known block in the blockchain)
- we start inserting -> error -> remove the entire chain
- instead of punishing this peer
- solution: when switching peers always make sure best peers own head block
- and td together with blockBy are recorded on the node
- */
- if len(nodes) == 0 && child != nil {
- glog.V(logger.Detail).Infof("AddBlockHashes: child section [%s] pushed to blockchain peer <%s> (head: %s) found block %s in the blockchain", sectionhex(child), peerId, hex(bestpeer.currentBlockHash), hex(hash))
-
- child.addSectionToBlockChain(bestpeer)
- }
- }
- break LOOP
- }
-
- // look up node in the pool
- entry = self.get(hash)
- if entry != nil {
- // reached a known chain in the pool
- if entry.node == entry.section.bottom && n == 1 {
- /*
- The first block hash received is an orphan node in the pool
-
- This also supports clients that (despite the spec) include <from> hash in their
- response to hashes request. Note that by providing <from> we can link sections
- without having to wait for the root block of the child section to arrive, so it allows for superior performance.
- */
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s) found head block [%s] as root of connecting child section [%s] skipping", peerId, hex(bestpeer.currentBlockHash), hex(hash), sectionhex(entry.section))
- // record the entry's chain section as child section
- child = entry.section
- continue LOOP
- }
- // otherwise record entry's chain section as parent connecting it to the pool
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s) found block [%s] in section [%s]. Connected to pool.", peerId, hex(bestpeer.currentBlockHash), hex(hash), sectionhex(entry.section))
- parent = entry.section
- break LOOP
- }
-
- // finally if node for block hash does not exist, create it and append node to section nodes
- self.nodeCacheLock.Lock()
- nodes = append(nodes, self.findOrCreateNode(hash, peerId))
- self.nodeCacheLock.Unlock()
- } //for
-
- /*
- we got here if
- - run out of hashes (parent = nil) sent by our best peer
- - our peer is demoted (peerswitch = true)
- - reached blockchain or blockpool
- - quitting
- */
- self.chainLock.Lock()
-
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s): %v nodes in new section", peerId, hex(bestpeer.currentBlockHash), len(nodes))
- /*
- Handle forks where connecting node is mid-section by splitting section at fork.
- No splitting needed if connecting node is head of a section.
- */
- if parent != nil && entry != nil && entry.node != parent.top && len(nodes) > 0 {
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s): fork after %s", peerId, hex(bestpeer.currentBlockHash), hex(hash))
-
- self.splitSection(parent, entry)
-
- self.status.lock.Lock()
- self.status.values.Forks++
- self.status.lock.Unlock()
- }
-
- // If new section is created, link it to parent/child sections.
- sec = self.linkSections(nodes, parent, child)
-
- if sec != nil {
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s): section [%s] created", peerId, hex(bestpeer.currentBlockHash), sectionhex(sec))
- }
-
- self.chainLock.Unlock()
-
- /*
- If a blockpool node is reached (parent section is not nil),
- activate section (unless our peer is demoted by now).
- This can be the bottom half of a newly split section in case of a fork.
-
- bestPeer is nil if we got here after our peer got demoted while processing.
- In this case no activation should happen
- */
- if parent != nil && !peerswitch {
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s): parent section [%s]", peerId, hex(bestpeer.currentBlockHash), sectionhex(parent))
- self.activateChain(parent, bestpeer, bestpeer.switchC, nil)
- }
-
- /*
- If a new section was created, register section iff head section or no child known
- Activate it with this peer.
- */
- if sec != nil {
- // switch on section process (it is paused by switchC)
- if !peerswitch {
- if headSection || child == nil {
- bestpeer.lock.Lock()
- bestpeer.sections = append(bestpeer.sections, sec.top.hash)
- bestpeer.lock.Unlock()
- }
- /*
- Request another batch of older block hashes for parent section here.
- But only once, repeating only when the section's root block arrives.
- Otherwise no way to check if it arrived.
- */
- bestpeer.requestBlockHashes(sec.bottom.hash)
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s): start requesting blocks for section [%s]", peerId, hex(bestpeer.currentBlockHash), sectionhex(sec))
- sec.activate(bestpeer)
- } else {
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s) no longer best: delay requesting blocks for section [%s]", peerId, hex(bestpeer.currentBlockHash), sectionhex(sec))
- sec.deactivate()
- }
- }
-
- // If we are processing peer's head section, signal it to headSection process that it is created.
-
- if headSection {
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s) head section registered on head section process", peerId, hex(bestpeer.currentBlockHash))
-
- var headSec *section
- switch {
- case sec != nil:
- headSec = sec
- case child != nil:
- headSec = child
- default:
- headSec = parent
- }
- if !peerswitch {
- glog.V(logger.Detail).Infof("AddBlockHashes: peer <%s> (head: %s) head section [%s] created signalled to head section process", peerId, hex(bestpeer.currentBlockHash), sectionhex(headSec))
- bestpeer.headSectionC <- headSec
- }
- }
-}
-
-/*
- AddBlock is the entry point for the eth protocol to call when blockMsg is received.
-
- It has a strict interpretation of the protocol in that if the block received has not been requested, it results in an error.
-
- At the same time it is opportunistic in that if a requested block may be provided by any peer.
-
- The received block is checked for PoW. Only the first PoW-valid block for a hash is considered legit.
-
- If the block received is the head block of the current best peer, signal it to the head section process
-*/
-func (self *BlockPool) AddBlock(block *types.Block, peerId string) {
-
- self.status.lock.Lock()
- self.status.activePeers[peerId]++
- self.status.lock.Unlock()
-
- hash := block.Hash()
-
- // check if block is already inserted in the blockchain
- if self.hasBlock(hash) {
- return
- }
-
- sender, _ := self.peers.getPeer(peerId)
- if sender == nil {
- return
- }
- sender.lock.Lock()
- tdFromCurrentHead, currentBlockHash := sender.setChainInfoFromBlock(block)
-
- entry := self.get(hash)
-
- /* @zelig !!!
- requested 5 hashes from both A & B. A responds sooner then B, process blocks. Close section.
- delayed B sends you block ... UNREQUESTED. Blocked
- if entry == nil {
- glog.V(logger.Detail).Infof("AddBlock: unrequested block %s received from peer <%s> (head: %s)", hex(hash), peerId, hex(sender.currentBlockHash))
- sender.addError(ErrUnrequestedBlock, "%x", hash)
-
- self.status.lock.Lock()
- self.status.badPeers[peerId]++
- self.status.lock.Unlock()
- return
- }
- */
-
- var bnode *node
- if entry == nil {
- self.nodeCacheLock.Lock()
- bnode = self.findOrCreateNode(currentBlockHash, peerId)
- self.nodeCacheLock.Unlock()
- } else {
- bnode = entry.node
- }
-
- bnode.lock.Lock()
-
- // check if block already received
- if bnode.block != nil {
- glog.V(logger.Detail).Infof("AddBlock: block %s from peer <%s> (head: %s) already sent by <%s> ", hex(hash), peerId, hex(sender.currentBlockHash), bnode.blockBy)
- // register peer on node as source
- if bnode.peers == nil {
- bnode.peers = make(map[string]bool)
- }
- foundBlockCurrentHead, found := bnode.peers[sender.id]
- if !found || foundBlockCurrentHead {
- // if found but not FoundBlockCurrentHead, then no update
- // necessary (||)
- bnode.peers[sender.id] = (currentBlockHash == hash)
- // for those that are false, TD will update their head
- // for those that are true, TD is checked !
- // this is checked at the time of TD calculation in checkTD
- }
- sender.setChainInfoFromNode(bnode)
- } else {
- /*
- @zelig needs discussing
- Viktor: pow check can be delayed in a go routine and therefore cache
- creation is not blocking
- // validate block for PoW
- if !self.verifyPoW(block) {
- glog.V(logger.Warn).Warnf("AddBlock: invalid PoW on block %s from peer <%s> (head: %s)", hex(hash), peerId, hex(sender.currentBlockHash))
- sender.addError(ErrInvalidPoW, "%x", hash)
-
- self.status.lock.Lock()
- self.status.badPeers[peerId]++
- self.status.lock.Unlock()
-
- return
- }
- */
- bnode.block = block
- bnode.blockBy = peerId
- glog.V(logger.Detail).Infof("AddBlock: set td on node %s from peer <%s> (head: %s) to %v (was %v) ", hex(hash), peerId, hex(sender.currentBlockHash), bnode.td, tdFromCurrentHead)
- bnode.td = tdFromCurrentHead
- self.status.lock.Lock()
- self.status.values.Blocks++
- self.status.values.BlocksInPool++
- self.status.lock.Unlock()
- }
- bnode.lock.Unlock()
- currentBlockC := sender.currentBlockC
- switchC := sender.switchC
- sender.lock.Unlock()
-
- // this must be called without peerlock.
- // peerlock held can halt the loop and block on select forever
- if tdFromCurrentHead != nil {
- select {
- case currentBlockC <- block:
- case <-switchC: // peer is not best peer
- }
- }
-}
-
-func (self *BlockPool) findOrCreateNode(hash common.Hash, peerId string) (bnode *node) {
- bnode, _ = self.nodeCache[hash]
- if bnode == nil {
- bnode = &node{
- hash: hash,
- hashBy: peerId,
- }
- self.nodeCache[hash] = bnode
- // purge oversize cache
- if len(self.nodeCache) > self.Config.NodeCacheSize {
- delete(self.nodeCache, self.nodeCacheList[0])
- self.nodeCacheList = append(self.nodeCacheList[1:], hash)
- } else {
- self.nodeCacheList = append(self.nodeCacheList, hash)
- }
-
- self.status.lock.Lock()
- self.status.values.BlockHashes++
- self.status.lock.Unlock()
- }
- return
-}
-
-/*
- activateChain iterates down a chain section by section.
- It activates the section process on incomplete sections with peer.
- It relinks orphaned sections with their parent if root block (and its parent hash) is known.
-*/
-func (self *BlockPool) activateChain(sec *section, p *peer, switchC chan bool, connected map[common.Hash]*section) {
-
- var i int
-
-LOOP:
- for sec != nil {
- parent := sec.parent
- glog.V(logger.Detail).Infof("activateChain: section [%s] activated by peer <%s>", sectionhex(sec), p.id)
- sec.activate(p)
- if i > 0 && connected != nil {
- connected[sec.top.hash] = sec
- }
- /*
- Need to relink both complete and incomplete sections
- An incomplete section could have been blockHashesRequestsComplete before being delinked from its parent.
- */
- if parent == nil {
- if sec.bottom.block != nil {
- if entry := self.get(sec.bottom.block.ParentHash()); entry != nil {
- parent = entry.section
- glog.V(logger.Detail).Infof("activateChain: [%s]-[%s] link", sectionhex(parent), sectionhex(sec))
- link(parent, sec)
- }
- } else {
- glog.V(logger.Detail).Infof("activateChain: section [%s] activated by peer <%s> has missing root block", sectionhex(sec), p.id)
- }
- }
- sec = parent
-
- // stop if peer got demoted or global quit
- select {
- case <-switchC:
- break LOOP
- case <-self.quit:
- break LOOP
- default:
- }
- }
-}
-
-// check if block's actual TD (calculated after successful insertChain) is identical to TD advertised for peer's head block.
-func (self *BlockPool) checkTD(nodes ...*node) {
- for _, n := range nodes {
- // skip check if queued future block
- n.lock.RLock()
- if n.td != nil && !n.block.Queued() {
- glog.V(logger.Detail).Infof("peer td %v =?= block td %v", n.td, n.block.Td)
- // @zelig: Commented out temp untill the rest of the network has been fixed.
- if n.td.Cmp(n.block.Td) != 0 {
- self.peers.peerError(n.blockBy, ErrIncorrectTD, "on block %x peer td %v =?= block td %v", n.hash, n.td, n.block.Td)
- self.status.lock.Lock()
- self.status.badPeers[n.blockBy]++
- self.status.lock.Unlock()
- }
- }
- n.lock.RUnlock()
- }
-}
-
-// requestBlocks must run in separate go routine, otherwise
-// switchpeer -> activateChain -> activate deadlocks on section process select and peers.lock
-func (self *BlockPool) requestBlocks(attempts int, hashes []common.Hash) {
- self.wg.Add(1)
- go func() {
- self.peers.requestBlocks(attempts, hashes)
- self.wg.Done()
- }()
-}
-
-// convenience methods to access adjacent sections
-func (self *BlockPool) getParent(sec *section) *section {
- self.chainLock.RLock()
- defer self.chainLock.RUnlock()
- return sec.parent
-}
-
-func (self *BlockPool) getChild(sec *section) *section {
- self.chainLock.RLock()
- defer self.chainLock.RUnlock()
- return sec.child
-}
-
-// accessor and setter for entries in the pool
-func (self *BlockPool) get(hash common.Hash) *entry {
- self.lock.RLock()
- defer self.lock.RUnlock()
- return self.pool[hash]
-}
-
-func (self *BlockPool) set(hash common.Hash, e *entry) {
- self.lock.Lock()
- defer self.lock.Unlock()
- self.pool[hash] = e
-}
-
-// accessor and setter for total difficulty
-func (self *BlockPool) getTD() *big.Int {
- self.lock.RLock()
- defer self.lock.RUnlock()
- return self.td
-}
-
-func (self *BlockPool) setTD(td *big.Int) {
- self.lock.Lock()
- defer self.lock.Unlock()
- self.td = td
-}
-
-func (self *BlockPool) remove(sec *section) {
- // delete node entries from pool index under pool lock
- self.lock.Lock()
- defer self.lock.Unlock()
-
- for _, node := range sec.nodes {
- delete(self.pool, node.hash)
- }
- if sec.initialised && sec.poolRootIndex != 0 {
- self.status.lock.Lock()
- self.status.values.BlocksInPool -= len(sec.nodes) - sec.missing
- self.status.lock.Unlock()
- }
-}
-
-// get/put for optimised allocation similar to sync.Pool
-func (self *BlockPool) getHashSlice() (s []common.Hash) {
- select {
- case s = <-self.hashSlicePool:
- default:
- s = make([]common.Hash, self.Config.BlockBatchSize)
- }
- return
-}
-
-func (self *BlockPool) putHashSlice(s []common.Hash) {
- if len(s) == self.Config.BlockBatchSize {
- select {
- case self.hashSlicePool <- s:
- default:
- }
- }
-}
-
-// pretty prints hash (byte array) with first 4 bytes in hex
-func hex(hash common.Hash) (name string) {
- if (hash == common.Hash{}) {
- name = ""
- } else {
- name = fmt.Sprintf("%x", hash[:4])
- }
- return
-}
-
-// pretty prints a section using first 4 bytes in hex of bottom and top blockhash of the section
-func sectionhex(section *section) (name string) {
- if section == nil {
- name = ""
- } else {
- name = fmt.Sprintf("%x-%x", section.bottom.hash[:4], section.top.hash[:4])
- }
- return
-}
diff --git a/blockpool/blockpool_test.go b/blockpool/blockpool_test.go
deleted file mode 100644
index e79991f15..000000000
--- a/blockpool/blockpool_test.go
+++ /dev/null
@@ -1,433 +0,0 @@
-package blockpool
-
-import (
- "testing"
- "time"
-)
-
-// using the mock framework in blockpool_util_test
-// we test various scenarios here
-
-func TestPeerWithKnownBlock(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.refBlockChain[0] = nil
- blockPoolTester.blockChain[0] = nil
- blockPool.Start()
-
- peer0 := blockPoolTester.newPeer("0", 1, 0)
- peer0.AddPeer()
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- // no request on known block
- peer0.checkBlockHashesRequests()
-}
-
-func TestPeerWithKnownParentBlock(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.initRefBlockChain(1)
- blockPoolTester.blockChain[0] = nil
- blockPool.Start()
-
- peer0 := blockPoolTester.newPeer("0", 1, 1)
- peer0.AddPeer()
- peer0.serveBlocks(0, 1)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- peer0.checkBlocksRequests([]int{1})
- peer0.checkBlockHashesRequests()
- blockPoolTester.refBlockChain[1] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-}
-
-func TestSimpleChain(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(2)
-
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 2, 2)
- peer1.AddPeer()
- peer1.serveBlocks(1, 2)
- go peer1.serveBlockHashes(2, 1, 0)
- peer1.serveBlocks(0, 1)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[2] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-}
-
-func TestChainConnectingWithParentHash(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(3)
-
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 3, 3)
- peer1.AddPeer()
- go peer1.serveBlocks(2, 3)
- go peer1.serveBlockHashes(3, 2, 1)
- peer1.serveBlocks(0, 1, 2)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[3] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-}
-
-func TestMultiSectionChain(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(5)
-
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 5, 5)
-
- peer1.AddPeer()
- go peer1.serveBlocks(4, 5)
- go peer1.serveBlockHashes(5, 4, 3)
- go peer1.serveBlocks(2, 3, 4)
- go peer1.serveBlockHashes(3, 2, 1, 0)
- peer1.serveBlocks(0, 1, 2)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[5] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-}
-
-func TestNewBlocksOnPartialChain(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(7)
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 5, 5)
- blockPoolTester.tds = make(map[int]int)
- blockPoolTester.tds[5] = 5
-
- peer1.AddPeer()
- go peer1.serveBlocks(4, 5) // partially complete section
- go peer1.serveBlockHashes(5, 4, 3)
- peer1.serveBlocks(3, 4) // partially complete section
-
- // peer1 found new blocks
- peer1.td = 7
- peer1.currentBlock = 7
- peer1.AddPeer()
- peer1.sendBlocks(6, 7)
- go peer1.serveBlockHashes(7, 6, 5)
- go peer1.serveBlocks(2, 3)
- go peer1.serveBlocks(5, 6)
- go peer1.serveBlockHashes(3, 2, 1) // tests that hash request from known chain root is remembered
- peer1.serveBlocks(0, 1, 2)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[7] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-}
-
-func TestPeerSwitchUp(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(7)
-
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 6, 6)
- peer2 := blockPoolTester.newPeer("peer2", 7, 7)
-
- peer1.AddPeer()
- go peer1.serveBlocks(5, 6)
- go peer1.serveBlockHashes(6, 5, 4, 3) //
- peer1.serveBlocks(2, 3) // section partially complete, block 3 will be preserved after peer demoted
- peer2.AddPeer() // peer2 is promoted as best peer, peer1 is demoted
- go peer2.serveBlocks(6, 7) //
- go peer2.serveBlocks(4, 5) // tests that block request for earlier section is remembered
- go peer1.serveBlocks(3, 4) // tests that connecting section by demoted peer is remembered and blocks are accepted from demoted peer
- go peer2.serveBlockHashes(3, 2, 1, 0) // tests that known chain section is activated, hash requests from 3 is remembered
- peer2.serveBlocks(0, 1, 2) // final blocks linking to blockchain sent
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[7] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-}
-
-func TestPeerSwitchDownOverlapSectionWithoutRootBlock(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(6)
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 4, 4)
- peer2 := blockPoolTester.newPeer("peer2", 6, 6)
-
- peer2.AddPeer()
- peer2.serveBlocks(5, 6) // partially complete, section will be preserved
- peer2.serveBlockHashes(6, 5, 4) // no go: make sure skeleton is created
- peer1.AddPeer() // inferior peer1 is promoted as best peer
- blockPool.RemovePeer("peer2") // peer2 disconnects
- go peer1.serveBlockHashes(4, 3, 2, 1, 0) //
- go peer1.serveBlocks(3, 4) //
- go peer1.serveBlocks(4, 5) // tests that section set by demoted peer is remembered and blocks are accepted from new peer if they have it even if peers original TD is lower
- peer1.serveBlocks(0, 1, 2, 3)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[6] = []int{} // tests that idle sections are not inserted in blockchain
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-}
-
-func TestPeerSwitchDownOverlapSectionWithRootBlock(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(6)
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 4, 4)
- peer2 := blockPoolTester.newPeer("peer2", 6, 6)
-
- peer2.AddPeer()
- peer2.serveBlocks(5, 6) // partially complete, section will be preserved
- go peer2.serveBlockHashes(6, 5, 4) //
- peer2.serveBlocks(3, 4) // !incomplete section
- time.Sleep(100 * time.Millisecond) // make sure block 4 added
- peer1.AddPeer() // inferior peer1 is promoted as best peer
- blockPool.RemovePeer("peer2") // peer2 disconnects
- go peer1.serveBlockHashes(4, 3, 2, 1, 0) // tests that hash request are directly connecting if the head block exists
- go peer1.serveBlocks(4, 5) // tests that section set by demoted peer is remembered and blocks are accepted from new peer if they have it even if peers original TD is lower
- peer1.serveBlocks(0, 1, 2, 3)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[6] = []int{} // tests that idle sections are not inserted in blockchain
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-}
-
-func TestPeerSwitchDownDisjointSection(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(3)
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 3, 3)
- peer2 := blockPoolTester.newPeer("peer2", 6, 6)
-
- peer2.AddPeer()
- peer2.serveBlocks(5, 6) // partially complete, section will be preserved
- go peer2.serveBlockHashes(6, 5, 4) //
- peer2.serveBlocks(3, 4, 5) //
- time.Sleep(100 * time.Millisecond) // make sure blocks are received
- peer1.AddPeer() // inferior peer1 is promoted as best peer
- blockPool.RemovePeer("peer2") // peer2 disconnects
- go peer1.serveBlocks(2, 3) //
- go peer1.serveBlockHashes(3, 2, 1) //
- peer1.serveBlocks(0, 1, 2) //
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[3] = []int{} // tests that idle sections are not inserted in blockchain
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-}
-
-func TestPeerSwitchBack(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(8)
-
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 11, 11)
- peer2 := blockPoolTester.newPeer("peer2", 8, 8)
-
- peer2.AddPeer()
- go peer2.serveBlocks(7, 8)
- go peer2.serveBlockHashes(8, 7, 6)
- go peer2.serveBlockHashes(6, 5, 4)
- peer2.serveBlocks(4, 5) // section partially complete
- peer1.AddPeer() // peer1 is promoted as best peer
- peer1.serveBlocks(10, 11) //
- peer1.serveBlockHashes(11, 10) // only gives useless results
- blockPool.RemovePeer("peer1") // peer1 disconnects
- go peer2.serveBlockHashes(4, 3, 2, 1, 0) // tests that asking for hashes from 4 is remembered
- go peer2.serveBlocks(3, 4, 5, 6, 7, 8) // tests that section 4, 5, 6 and 7, 8 are remembered for missing blocks
- peer2.serveBlocks(0, 1, 2, 3)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[8] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-}
-
-func TestForkSimple(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(9)
- blockPoolTester.refBlockChain[3] = []int{4, 7}
- delete(blockPoolTester.refBlockChain, 6)
-
- blockPool.Start()
- blockPoolTester.tds = make(map[int]int)
- blockPoolTester.tds[6] = 10
- peer1 := blockPoolTester.newPeer("peer1", 9, 9)
- peer2 := blockPoolTester.newPeer("peer2", 10, 6)
-
- peer1.AddPeer()
- go peer1.serveBlocks(8, 9)
- go peer1.serveBlockHashes(9, 8, 7, 3, 2)
- peer1.serveBlocks(1, 2, 3, 7, 8)
- peer2.AddPeer() // peer2 is promoted as best peer
- go peer2.serveBlocks(5, 6) //
- go peer2.serveBlockHashes(6, 5, 4, 3, 2) // fork on 3 -> 4 (earlier child: 7)
- go peer2.serveBlocks(1, 2, 3, 4, 5)
- go peer2.serveBlockHashes(2, 1, 0)
- peer2.serveBlocks(0, 1, 2)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[6] = []int{}
- blockPoolTester.refBlockChain[3] = []int{4}
- delete(blockPoolTester.refBlockChain, 7)
- delete(blockPoolTester.refBlockChain, 8)
- delete(blockPoolTester.refBlockChain, 9)
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-
-}
-
-func TestForkSwitchBackByNewBlocks(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(11)
- blockPoolTester.refBlockChain[3] = []int{4, 7}
- delete(blockPoolTester.refBlockChain, 6)
-
- blockPool.Start()
- blockPoolTester.tds = make(map[int]int)
- blockPoolTester.tds[6] = 10
- peer1 := blockPoolTester.newPeer("peer1", 9, 9)
- peer2 := blockPoolTester.newPeer("peer2", 10, 6)
-
- peer1.AddPeer()
- go peer1.serveBlocks(8, 9) //
- go peer1.serveBlockHashes(9, 8, 7, 3, 2) //
- peer1.serveBlocks(7, 8) // partial section
- // time.Sleep(1 * time.Second)
- peer2.AddPeer() //
- go peer2.serveBlocks(5, 6) //
- go peer2.serveBlockHashes(6, 5, 4, 3, 2) // peer2 forks on block 3
- peer2.serveBlocks(1, 2, 3, 4, 5) //
-
- // peer1 finds new blocks
- peer1.td = 11
- peer1.currentBlock = 11
- peer1.AddPeer()
- go peer1.serveBlocks(10, 11)
- go peer1.serveBlockHashes(11, 10, 9)
- go peer1.serveBlocks(9, 10)
- // time.Sleep(1 * time.Second)
- go peer1.serveBlocks(3, 7) // tests that block requests on earlier fork are remembered
- go peer1.serveBlockHashes(2, 1, 0) // tests that hash request from root of connecting chain section (added by demoted peer) is remembered
- peer1.serveBlocks(0, 1)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[11] = []int{}
- blockPoolTester.refBlockChain[3] = []int{7}
- delete(blockPoolTester.refBlockChain, 6)
- delete(blockPoolTester.refBlockChain, 5)
- delete(blockPoolTester.refBlockChain, 4)
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-
-}
-
-func TestForkSwitchBackByPeerSwitchBack(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(9)
- blockPoolTester.refBlockChain[3] = []int{4, 7}
- delete(blockPoolTester.refBlockChain, 6)
-
- blockPool.Start()
-
- blockPoolTester.tds = make(map[int]int)
- blockPoolTester.tds[6] = 10
-
- blockPoolTester.tds = make(map[int]int)
- blockPoolTester.tds[6] = 10
-
- peer1 := blockPoolTester.newPeer("peer1", 9, 9)
- peer2 := blockPoolTester.newPeer("peer2", 10, 6)
-
- peer1.AddPeer()
- go peer1.serveBlocks(8, 9)
- go peer1.serveBlockHashes(9, 8, 7, 3, 2)
- peer1.serveBlocks(7, 8)
- peer2.AddPeer()
- go peer2.serveBlocks(5, 6) //
- go peer2.serveBlockHashes(6, 5, 4, 3, 2) // peer2 forks on block 3
- peer2.serveBlocks(2, 3, 4, 5) //
- blockPool.RemovePeer("peer2") // peer2 disconnects, peer1 is promoted again as best peer
- go peer1.serveBlocks(1, 2) //
- go peer1.serveBlockHashes(2, 1, 0) //
- go peer1.serveBlocks(3, 7) // tests that block requests on earlier fork are remembered and orphan section relinks to existing parent block
- peer1.serveBlocks(0, 1)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[9] = []int{}
- blockPoolTester.refBlockChain[3] = []int{7}
- delete(blockPoolTester.refBlockChain, 6)
- delete(blockPoolTester.refBlockChain, 5)
- delete(blockPoolTester.refBlockChain, 4)
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-
-}
-
-func TestForkCompleteSectionSwitchBackByPeerSwitchBack(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(9)
- blockPoolTester.refBlockChain[3] = []int{4, 7}
- delete(blockPoolTester.refBlockChain, 6)
-
- blockPool.Start()
-
- blockPoolTester.tds = make(map[int]int)
- blockPoolTester.tds[6] = 10
-
- peer1 := blockPoolTester.newPeer("peer1", 9, 9)
- peer2 := blockPoolTester.newPeer("peer2", 10, 6)
-
- peer1.AddPeer()
- go peer1.serveBlocks(8, 9)
- go peer1.serveBlockHashes(9, 8, 7)
- peer1.serveBlocks(3, 7, 8) // make sure this section is complete
- // time.Sleep(2 * time.Second) //
- peer1.serveBlockHashes(7, 3, 2) // block 3/7 is section boundary
- peer1.serveBlocks(2, 3) // partially complete sections block 2 missing
- peer2.AddPeer() //
- go peer2.serveBlocks(5, 6) //
- go peer2.serveBlockHashes(6, 5, 4, 3, 2) // peer2 forks on block 3
- time.Sleep(100 * time.Millisecond) //
- peer2.serveBlocks(2, 3, 4, 5) // block 2 still missing.
- blockPool.RemovePeer("peer2") // peer2 disconnects, peer1 is promoted again as best peer
- go peer1.serveBlockHashes(2, 1) //
- peer1.serveBlocks(0, 1, 2)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[9] = []int{}
- blockPoolTester.refBlockChain[3] = []int{7}
- delete(blockPoolTester.refBlockChain, 6)
- delete(blockPoolTester.refBlockChain, 5)
- delete(blockPoolTester.refBlockChain, 4)
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-
-}
diff --git a/blockpool/blockpool_util_test.go b/blockpool/blockpool_util_test.go
deleted file mode 100644
index e52c0f753..000000000
--- a/blockpool/blockpool_util_test.go
+++ /dev/null
@@ -1,373 +0,0 @@
-package blockpool
-
-import (
- "fmt"
- "math/big"
- "sync"
- "testing"
- "time"
-
- "github.com/ethereum/go-ethereum/blockpool/test"
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/core/types"
- "github.com/ethereum/go-ethereum/errs"
- "github.com/ethereum/go-ethereum/event"
- "github.com/ethereum/go-ethereum/pow"
-)
-
-var (
- waitTimeout = 60 * time.Second
- testBlockHashesRequestInterval = 10 * time.Millisecond
- testBlocksRequestInterval = 10 * time.Millisecond
- requestWatchInterval = 10 * time.Millisecond
-)
-
-// test blockChain is an integer trie
-type blockChain map[int][]int
-
-// blockPoolTester provides the interface between tests and a blockPool
-//
-// refBlockChain is used to guide which blocks will be accepted as valid
-// blockChain gives the current state of the blockchain and
-// accumulates inserts so that we can check the resulting chain
-type blockPoolTester struct {
- hashPool *test.TestHashPool
- lock sync.RWMutex
- reqlock sync.RWMutex
- blocksRequestsMap map[int]bool
- refBlockChain blockChain
- blockChain blockChain
- blockPool *BlockPool
- t *testing.T
- chainEvents *event.TypeMux
- tds map[int]int
-}
-
-func newTestBlockPool(t *testing.T) (hashPool *test.TestHashPool, blockPool *BlockPool, b *blockPoolTester) {
- hashPool = test.NewHashPool()
- b = &blockPoolTester{
- t: t,
- hashPool: hashPool,
- blockChain: make(blockChain),
- refBlockChain: make(blockChain),
- blocksRequestsMap: make(map[int]bool),
- chainEvents: &event.TypeMux{},
- }
- b.blockPool = New(b.hasBlock, b.insertChain, b.verifyPoW, b.chainEvents, common.Big0)
- blockPool = b.blockPool
- blockPool.Config.BlockHashesRequestInterval = testBlockHashesRequestInterval
- blockPool.Config.BlocksRequestInterval = testBlocksRequestInterval
- return
-}
-
-func (self *blockPoolTester) Errorf(format string, params ...interface{}) {
- // fmt.Printf(format+"\n", params...)
- self.t.Errorf(format, params...)
-}
-
-// blockPoolTester implements the 3 callbacks needed by the blockPool:
-// hasBlock, insetChain, verifyPoW as well as provides the eventer
-// to subscribe to head insertions
-func (self *blockPoolTester) hasBlock(block common.Hash) (ok bool) {
- self.lock.RLock()
- defer self.lock.RUnlock()
- indexes := self.hashPool.HashesToIndexes([]common.Hash{block})
- i := indexes[0]
- _, ok = self.blockChain[i]
- // fmt.Printf("has block %v (%x...): %v\n", i, block[0:4], ok)
- return
-}
-
-// mock insertChain relies on refBlockChain to determine block validity
-func (self *blockPoolTester) insertChain(blocks types.Blocks) error {
- self.lock.Lock()
- defer self.lock.Unlock()
- var parent, child int
- var children, refChildren []int
- var ok bool
- for _, block := range blocks {
- child = self.hashPool.HashesToIndexes([]common.Hash{block.Hash()})[0]
- td := child
- if self.tds != nil {
- td, ok = self.tds[child]
- }
- if !ok {
- td = child
- }
- block.Td = big.NewInt(int64(td))
- _, ok = self.blockChain[child]
- if ok {
- // fmt.Printf("block %v already in blockchain\n", child)
- continue // already in chain
- }
- parent = self.hashPool.HashesToIndexes([]common.Hash{block.ParentHeaderHash})[0]
- children, ok = self.blockChain[parent]
- if !ok {
- return fmt.Errorf("parent %v not in blockchain ", parent)
- }
- ok = false
- var found bool
- refChildren, found = self.refBlockChain[parent]
- if found {
- for _, c := range refChildren {
- if c == child {
- ok = true
- }
- }
- if !ok {
- return fmt.Errorf("invalid block %v", child)
- }
- } else {
- ok = true
- }
- if ok {
- // accept any blocks if parent not in refBlockChain
- self.blockChain[parent] = append(children, child)
- self.blockChain[child] = nil
- }
- }
- return nil
-}
-
-// mock soft block validation always succeeds
-func (self *blockPoolTester) verifyPoW(pblock pow.Block) bool {
- return true
-}
-
-// test helper that compares the resulting blockChain to the desired blockChain
-func (self *blockPoolTester) checkBlockChain(blockChain map[int][]int) {
- self.lock.RLock()
- defer self.lock.RUnlock()
- // for k, v := range self.blockChain {
- // fmt.Printf("got: %v -> %v\n", k, v)
- // }
- // for k, v := range blockChain {
- // fmt.Printf("expected: %v -> %v\n", k, v)
- // }
- if len(blockChain) != len(self.blockChain) {
- self.Errorf("blockchain incorrect (zlength differ)")
- }
- for k, v := range blockChain {
- vv, ok := self.blockChain[k]
- if !ok || !test.ArrayEq(v, vv) {
- self.Errorf("blockchain incorrect on %v -> %v (!= %v)", k, vv, v)
- }
- }
-}
-
-// peerTester provides the peer callbacks for the blockPool
-// it registers actual callbacks so that the result can be compared to desired behaviour
-// provides helper functions to mock the protocol calls to the blockPool
-type peerTester struct {
- // containers to record request and error callbacks
- blockHashesRequests []int
- blocksRequests [][]int
- blocksRequestsMap map[int]bool
- peerErrors []int
-
- blockPool *BlockPool
- hashPool *test.TestHashPool
- lock sync.RWMutex
- bt *blockPoolTester
- id string
- td int
- currentBlock int
- t *testing.T
-}
-
-// peerTester constructor takes hashPool and blockPool from the blockPoolTester
-func (self *blockPoolTester) newPeer(id string, td int, cb int) *peerTester {
- return &peerTester{
- id: id,
- td: td,
- currentBlock: cb,
- hashPool: self.hashPool,
- blockPool: self.blockPool,
- t: self.t,
- bt: self,
- blocksRequestsMap: self.blocksRequestsMap,
- }
-}
-
-func (self *peerTester) Errorf(format string, params ...interface{}) {
- // fmt.Printf(format+"\n", params...)
- self.t.Errorf(format, params...)
-}
-
-// helper to compare actual and expected block requests
-func (self *peerTester) checkBlocksRequests(blocksRequests ...[]int) {
- if len(blocksRequests) > len(self.blocksRequests) {
- self.Errorf("blocks requests incorrect (length differ)\ngot %v\nexpected %v", self.blocksRequests, blocksRequests)
- } else {
- for i, rr := range blocksRequests {
- r := self.blocksRequests[i]
- if !test.ArrayEq(r, rr) {
- self.Errorf("blocks requests incorrect\ngot %v\nexpected %v", self.blocksRequests, blocksRequests)
- }
- }
- }
-}
-
-// helper to compare actual and expected block hash requests
-func (self *peerTester) checkBlockHashesRequests(blocksHashesRequests ...int) {
- rr := blocksHashesRequests
- self.lock.RLock()
- r := self.blockHashesRequests
- self.lock.RUnlock()
- if len(r) != len(rr) {
- self.Errorf("block hashes requests incorrect (length differ)\ngot %v\nexpected %v", r, rr)
- } else {
- if !test.ArrayEq(r, rr) {
- self.Errorf("block hashes requests incorrect\ngot %v\nexpected %v", r, rr)
- }
- }
-}
-
-// waiter function used by peer.serveBlocks
-// blocking until requests appear
-// this mocks proper wire protocol behaviour
-// since block requests are sent to any random peers
-// block request map is shared between peers
-// times out after waitTimeout
-func (self *peerTester) waitBlocksRequests(blocksRequest ...int) {
- timeout := time.After(waitTimeout)
- rr := blocksRequest
- for {
- self.lock.RLock()
- r := self.blocksRequestsMap
- // fmt.Printf("[%s] blocks request check %v (%v)\n", self.id, rr, r)
- i := 0
- for i = 0; i < len(rr); i++ {
- _, ok := r[rr[i]]
- if !ok {
- break
- }
- }
- self.lock.RUnlock()
-
- if i == len(rr) {
- return
- }
- time.Sleep(requestWatchInterval)
- select {
- case <-timeout:
- default:
- }
- }
-}
-
-// waiter function used by peer.serveBlockHashes
-// blocking until requests appear
-// this mocks proper wire protocol behaviour
-// times out after a period
-func (self *peerTester) waitBlockHashesRequests(blocksHashesRequest int) {
- timeout := time.After(waitTimeout)
- rr := blocksHashesRequest
- for i := 0; ; {
- self.lock.RLock()
- r := self.blockHashesRequests
- self.lock.RUnlock()
- // fmt.Printf("[%s] block hash request check %v (%v)\n", self.id, rr, r)
- for ; i < len(r); i++ {
- if rr == r[i] {
- return
- }
- }
- time.Sleep(requestWatchInterval)
- select {
- case <-timeout:
- default:
- }
- }
-}
-
-// mocks a simple blockchain 0 (genesis) ... n (head)
-func (self *blockPoolTester) initRefBlockChain(n int) {
- for i := 0; i < n; i++ {
- self.refBlockChain[i] = []int{i + 1}
- }
-}
-
-// peerTester functions that mimic protocol calls to the blockpool
-// registers the peer with the blockPool
-func (self *peerTester) AddPeer() (best bool) {
- hash := self.hashPool.IndexesToHashes([]int{self.currentBlock})[0]
- best, _ = self.blockPool.AddPeer(big.NewInt(int64(self.td)), hash, self.id, self.requestBlockHashes, self.requestBlocks, self.peerError)
- return
-}
-
-// peer sends blockhashes if and when gets a request
-func (self *peerTester) serveBlockHashes(indexes ...int) {
- // fmt.Printf("ready to serve block hashes %v\n", indexes)
-
- self.waitBlockHashesRequests(indexes[0])
- self.sendBlockHashes(indexes...)
-}
-
-// peer sends blockhashes not waiting for request
-func (self *peerTester) sendBlockHashes(indexes ...int) {
- // fmt.Printf("adding block hashes %v\n", indexes)
- hashes := self.hashPool.IndexesToHashes(indexes)
- i := 1
- next := func() (hash common.Hash, ok bool) {
- if i < len(hashes) {
- hash = hashes[i]
- ok = true
- i++
- }
- return
- }
- self.blockPool.AddBlockHashes(next, self.id)
-}
-
-// peer sends blocks if and when there is a request
-// (in the shared request store, not necessarily to a specific peer)
-func (self *peerTester) serveBlocks(indexes ...int) {
- // fmt.Printf("ready to serve blocks %v\n", indexes[1:])
- self.waitBlocksRequests(indexes[1:]...)
- self.sendBlocks(indexes...)
-}
-
-// peer sends blocks not waiting for request
-func (self *peerTester) sendBlocks(indexes ...int) {
- // fmt.Printf("adding blocks %v \n", indexes)
- hashes := self.hashPool.IndexesToHashes(indexes)
- for i := 1; i < len(hashes); i++ {
- // fmt.Printf("adding block %v %x\n", indexes[i], hashes[i][:4])
- self.blockPool.AddBlock(&types.Block{HeaderHash: hashes[i], ParentHeaderHash: hashes[i-1]}, self.id)
- }
-}
-
-// the 3 mock peer callbacks
-
-// records block hashes requests by the blockPool
-// -1 is special: not found (a hash never seen)
-func (self *peerTester) requestBlockHashes(hash common.Hash) error {
- indexes := self.hashPool.HashesToIndexes([]common.Hash{hash})
- // fmt.Printf("[%s] block hash request %v %x\n", self.id, indexes[0], hash[:4])
- self.lock.Lock()
- defer self.lock.Unlock()
- self.blockHashesRequests = append(self.blockHashesRequests, indexes[0])
- return nil
-}
-
-// records block requests by the blockPool
-func (self *peerTester) requestBlocks(hashes []common.Hash) error {
- indexes := self.hashPool.HashesToIndexes(hashes)
- // fmt.Printf("blocks request %v %x...\n", indexes, hashes[0][:4])
- self.bt.reqlock.Lock()
- defer self.bt.reqlock.Unlock()
- self.blocksRequests = append(self.blocksRequests, indexes)
- for _, i := range indexes {
- self.blocksRequestsMap[i] = true
- }
- return nil
-}
-
-// records the error codes of all the peerErrors found the blockPool
-func (self *peerTester) peerError(err *errs.Error) {
- self.peerErrors = append(self.peerErrors, err.Code)
- if err.Fatal() {
- self.blockPool.RemovePeer(self.id)
- }
-}
diff --git a/blockpool/config_test.go b/blockpool/config_test.go
deleted file mode 100644
index e882fefe1..000000000
--- a/blockpool/config_test.go
+++ /dev/null
@@ -1,49 +0,0 @@
-package blockpool
-
-import (
- "testing"
- "time"
-
- "github.com/ethereum/go-ethereum/blockpool/test"
- "github.com/ethereum/go-ethereum/event"
-)
-
-func TestBlockPoolConfig(t *testing.T) {
- test.LogInit()
- blockPool := &BlockPool{Config: &Config{}, chainEvents: &event.TypeMux{}}
- blockPool.Start()
- c := blockPool.Config
- test.CheckInt("BlockHashesBatchSize", c.BlockHashesBatchSize, blockHashesBatchSize, t)
- test.CheckInt("BlockBatchSize", c.BlockBatchSize, blockBatchSize, t)
- test.CheckInt("BlocksRequestRepetition", c.BlocksRequestRepetition, blocksRequestRepetition, t)
- test.CheckInt("BlocksRequestMaxIdleRounds", c.BlocksRequestMaxIdleRounds, blocksRequestMaxIdleRounds, t)
- test.CheckInt("NodeCacheSize", c.NodeCacheSize, nodeCacheSize, t)
- test.CheckDuration("BlockHashesRequestInterval", c.BlockHashesRequestInterval, blockHashesRequestInterval, t)
- test.CheckDuration("BlocksRequestInterval", c.BlocksRequestInterval, blocksRequestInterval, t)
- test.CheckDuration("BlockHashesTimeout", c.BlockHashesTimeout, blockHashesTimeout, t)
- test.CheckDuration("BlocksTimeout", c.BlocksTimeout, blocksTimeout, t)
- test.CheckDuration("IdleBestPeerTimeout", c.IdleBestPeerTimeout, idleBestPeerTimeout, t)
- test.CheckDuration("PeerSuspensionInterval", c.PeerSuspensionInterval, peerSuspensionInterval, t)
- test.CheckDuration("StatusUpdateInterval", c.StatusUpdateInterval, statusUpdateInterval, t)
-}
-
-func TestBlockPoolOverrideConfig(t *testing.T) {
- test.LogInit()
- blockPool := &BlockPool{Config: &Config{}, chainEvents: &event.TypeMux{}}
- c := &Config{128, 32, 1, 0, 500, 300 * time.Millisecond, 100 * time.Millisecond, 90 * time.Second, 0, 30 * time.Second, 30 * time.Second, 4 * time.Second}
-
- blockPool.Config = c
- blockPool.Start()
- test.CheckInt("BlockHashesBatchSize", c.BlockHashesBatchSize, 128, t)
- test.CheckInt("BlockBatchSize", c.BlockBatchSize, 32, t)
- test.CheckInt("BlocksRequestRepetition", c.BlocksRequestRepetition, blocksRequestRepetition, t)
- test.CheckInt("BlocksRequestMaxIdleRounds", c.BlocksRequestMaxIdleRounds, blocksRequestMaxIdleRounds, t)
- test.CheckInt("NodeCacheSize", c.NodeCacheSize, 500, t)
- test.CheckDuration("BlockHashesRequestInterval", c.BlockHashesRequestInterval, 300*time.Millisecond, t)
- test.CheckDuration("BlocksRequestInterval", c.BlocksRequestInterval, 100*time.Millisecond, t)
- test.CheckDuration("BlockHashesTimeout", c.BlockHashesTimeout, 90*time.Second, t)
- test.CheckDuration("BlocksTimeout", c.BlocksTimeout, blocksTimeout, t)
- test.CheckDuration("IdleBestPeerTimeout", c.IdleBestPeerTimeout, 30*time.Second, t)
- test.CheckDuration("PeerSuspensionInterval", c.PeerSuspensionInterval, 30*time.Second, t)
- test.CheckDuration("StatusUpdateInterval", c.StatusUpdateInterval, 4*time.Second, t)
-}
diff --git a/blockpool/errors_test.go b/blockpool/errors_test.go
deleted file mode 100644
index 2ab2d47f5..000000000
--- a/blockpool/errors_test.go
+++ /dev/null
@@ -1,224 +0,0 @@
-package blockpool
-
-import (
- "testing"
- "time"
-
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/core/types"
- "github.com/ethereum/go-ethereum/pow"
-)
-
-func TestInvalidBlock(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(2)
- blockPoolTester.refBlockChain[2] = []int{}
-
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 1, 3)
- peer1.AddPeer()
- go peer1.serveBlocks(2, 3)
- go peer1.serveBlockHashes(3, 2, 1, 0)
- peer1.serveBlocks(0, 1, 2)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[2] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
- if len(peer1.peerErrors) == 1 {
- if peer1.peerErrors[0] != ErrInvalidBlock {
- t.Errorf("wrong error, got %v, expected %v", peer1.peerErrors[0], ErrInvalidBlock)
- }
- } else {
- t.Errorf("expected %v error, got %v", ErrInvalidBlock, peer1.peerErrors)
- }
-}
-
-func TestVerifyPoW(t *testing.T) {
- t.Skip() // :FIXME:
-
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(3)
- first := false
- blockPoolTester.blockPool.verifyPoW = func(b pow.Block) bool {
- bb, _ := b.(*types.Block)
- indexes := blockPoolTester.hashPool.HashesToIndexes([]common.Hash{bb.Hash()})
- if indexes[0] == 2 && !first {
- first = true
- return false
- } else {
- return true
- }
-
- }
-
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 1, 3)
- peer2 := blockPoolTester.newPeer("peer2", 1, 3)
- peer1.AddPeer()
- peer2.AddPeer()
- go peer1.serveBlocks(2, 3)
- go peer1.serveBlockHashes(3, 2, 1, 0)
- peer1.serveBlocks(0, 1, 2, 3)
- blockPoolTester.blockPool.verifyPoW = func(b pow.Block) bool {
- return true
- }
- peer2.serveBlocks(1, 2)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[3] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
- if len(peer1.peerErrors) == 1 {
- if peer1.peerErrors[0] != ErrInvalidPoW {
- t.Errorf("wrong error, expected %v, got %v", ErrInvalidPoW, peer1.peerErrors[0])
- }
- } else {
- t.Errorf("expected %v error, got %v", ErrInvalidPoW, peer1.peerErrors)
- }
-}
-
-func TestUnrequestedBlock(t *testing.T) {
- t.Skip() // :FIXME:
-
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 1, 3)
- peer1.AddPeer()
- peer1.sendBlocks(1, 2)
-
- blockPool.Stop()
- if len(peer1.peerErrors) == 1 {
- if peer1.peerErrors[0] != ErrUnrequestedBlock {
- t.Errorf("wrong error, got %v, expected %v", peer1.peerErrors[0], ErrUnrequestedBlock)
- }
- } else {
- t.Errorf("expected %v error, got %v", ErrUnrequestedBlock, peer1.peerErrors)
- }
-}
-
-func TestErrInsufficientChainInfo(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPool.Config.BlockHashesTimeout = 100 * time.Millisecond
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 1, 3)
- peer1.AddPeer()
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- if len(peer1.peerErrors) == 1 {
- if peer1.peerErrors[0] != ErrInsufficientChainInfo {
- t.Errorf("wrong error, got %v, expected %v", peer1.peerErrors[0], ErrInsufficientChainInfo)
- }
- } else {
- t.Errorf("expected %v error, got %v", ErrInsufficientChainInfo, peer1.peerErrors)
- }
-}
-
-func TestIncorrectTD(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(3)
-
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 1, 3)
- peer1.AddPeer()
- go peer1.serveBlocks(2, 3)
- go peer1.serveBlockHashes(3, 2, 1, 0)
- peer1.serveBlocks(0, 1, 2)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[3] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
- if len(peer1.peerErrors) == 1 {
- if peer1.peerErrors[0] != ErrIncorrectTD {
- t.Errorf("wrong error, got %v, expected %v", peer1.peerErrors[0], ErrIncorrectTD)
- }
- } else {
- t.Errorf("expected %v error, got %v", ErrIncorrectTD, peer1.peerErrors)
- }
-}
-
-func TestSkipIncorrectTDonFutureBlocks(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(3)
-
- blockPool.insertChain = func(blocks types.Blocks) error {
- err := blockPoolTester.insertChain(blocks)
- if err == nil {
- for _, block := range blocks {
- if block.Td.Cmp(common.Big3) == 0 {
- block.Td = common.Big3
- block.SetQueued(true)
- break
- }
- }
- }
- return err
- }
-
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 3, 3)
- peer1.AddPeer()
- go peer1.serveBlocks(2, 3)
- go peer1.serveBlockHashes(3, 2, 1, 0)
- peer1.serveBlocks(0, 1, 2)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[3] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
- if len(peer1.peerErrors) > 0 {
- t.Errorf("expected no error, got %v (1 of %v)", peer1.peerErrors[0], len(peer1.peerErrors))
- }
-}
-
-func TestPeerSuspension(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPool.Config.PeerSuspensionInterval = 100 * time.Millisecond
-
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 3, 3)
- peer1.AddPeer()
- bestpeer, _ := blockPool.peers.getPeer("peer1")
- if bestpeer == nil {
- t.Errorf("peer1 not best peer")
- return
- }
- peer1.serveBlocks(2, 3)
-
- blockPool.peers.peerError("peer1", 0, "")
- bestpeer, _ = blockPool.peers.getPeer("peer1")
- if bestpeer != nil {
- t.Errorf("peer1 not removed on error")
- return
- }
- peer1.AddPeer()
- bestpeer, _ = blockPool.peers.getPeer("peer1")
- if bestpeer != nil {
- t.Errorf("peer1 not removed on reconnect")
- return
- }
- time.Sleep(100 * time.Millisecond)
- peer1.AddPeer()
-
- bestpeer, _ = blockPool.peers.getPeer("peer1")
- if bestpeer == nil {
- t.Errorf("peer1 not connected after PeerSuspensionInterval")
- return
- }
- blockPool.Stop()
-
-}
diff --git a/blockpool/peers.go b/blockpool/peers.go
deleted file mode 100644
index eb2ec6a1f..000000000
--- a/blockpool/peers.go
+++ /dev/null
@@ -1,639 +0,0 @@
-package blockpool
-
-import (
- "math/big"
- "math/rand"
- "sort"
- "sync"
- "time"
-
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/core/types"
- "github.com/ethereum/go-ethereum/errs"
- "github.com/ethereum/go-ethereum/logger"
- "github.com/ethereum/go-ethereum/logger/glog"
-)
-
-// the blockpool's model of a peer
-type peer struct {
- lock sync.RWMutex
-
- // last known blockchain status
- td *big.Int
- tdAdvertised bool
- currentBlockHash common.Hash
- currentBlock *types.Block
- parentHash common.Hash
- headSection *section
-
- id string
-
- // peer callbacks
- requestBlockHashes func(common.Hash) error
- requestBlocks func([]common.Hash) error
- peerError func(*errs.Error)
- errors *errs.Errors
-
- sections []common.Hash
-
- // channels to push new head block and head section for peer a
- currentBlockC chan *types.Block
- headSectionC chan *section
-
- // channels to signal peer switch and peer quit to section processes
- idleC chan bool
- switchC chan bool
-
- bp *BlockPool
-
- // timers for head section process
- blockHashesRequestTimer <-chan time.Time
- blocksRequestTimer <-chan time.Time
- headInfoTimer <-chan time.Time
- bestIdleTimer <-chan time.Time
-
- addToBlacklist func(id string)
-
- idle bool
-}
-
-// peers is the component keeping a record of peers in a hashmap
-//
-type peers struct {
- lock sync.RWMutex
- bllock sync.Mutex
-
- bp *BlockPool
- errors *errs.Errors
- peers map[string]*peer
- best *peer
- status *status
- blacklist map[string]time.Time
-}
-
-// peer constructor
-func (self *peers) newPeer(
- td *big.Int,
- currentBlockHash common.Hash,
- id string,
- requestBlockHashes func(common.Hash) error,
- requestBlocks func([]common.Hash) error,
- peerError func(*errs.Error),
-) (p *peer) {
-
- p = &peer{
- errors: self.errors,
- td: td,
- currentBlockHash: currentBlockHash,
- id: id,
- requestBlockHashes: requestBlockHashes,
- requestBlocks: requestBlocks,
- peerError: peerError,
- currentBlockC: make(chan *types.Block),
- headSectionC: make(chan *section),
- switchC: make(chan bool),
- bp: self.bp,
- idle: true,
- addToBlacklist: self.addToBlacklist,
- }
- close(p.switchC) //! hack :((((
- // at creation the peer is recorded in the peer pool
- self.peers[id] = p
- return
-}
-
-// dispatches an error to a peer if still connected, adds it to the blacklist
-func (self *peers) peerError(id string, code int, format string, params ...interface{}) {
- self.lock.RLock()
- peer, ok := self.peers[id]
- self.lock.RUnlock()
- if ok {
- peer.addError(code, format, params...)
- } else {
- self.addToBlacklist(id)
- }
-}
-
-// record time of offence in blacklist to implement suspension for PeerSuspensionInterval
-func (self *peers) addToBlacklist(id string) {
- self.bllock.Lock()
- defer self.bllock.Unlock()
- self.blacklist[id] = time.Now()
-}
-
-// suspended checks if peer is still suspended, caller should hold peers.lock
-func (self *peers) suspended(id string) (s bool) {
- self.bllock.Lock()
- defer self.bllock.Unlock()
- if suspendedAt, ok := self.blacklist[id]; ok {
- if s = suspendedAt.Add(self.bp.Config.PeerSuspensionInterval).After(time.Now()); !s {
- // no longer suspended, delete entry
- delete(self.blacklist, id)
- }
- }
- return
-}
-
-func (self *peer) addError(code int, format string, params ...interface{}) {
- err := self.errors.New(code, format, params...)
- self.peerError(err)
- if err.Fatal() {
- self.addToBlacklist(self.id)
- } else {
- go self.bp.peers.removePeer(self.id, false)
- }
-}
-
-// caller must hold peer lock
-func (self *peer) setChainInfo(td *big.Int, currentBlockHash common.Hash) {
- self.lock.Lock()
- defer self.lock.Unlock()
- if self.currentBlockHash != currentBlockHash {
- previousBlockHash := self.currentBlockHash
- glog.V(logger.Debug).Infof("addPeer: Update peer <%s> with td %v (was %v) and current block %s (was %v)", self.id, td, self.td, hex(currentBlockHash), hex(previousBlockHash))
-
- self.td = td
- self.currentBlockHash = currentBlockHash
- self.currentBlock = nil
- self.parentHash = common.Hash{}
- self.headSection = nil
- }
- self.tdAdvertised = true
-}
-
-func (self *peer) setChainInfoFromBlock(block *types.Block) (td *big.Int, currentBlockHash common.Hash) {
- hash := block.Hash()
- // this happens when block came in a newblock message but
- // also if sent in a blockmsg (for instance, if we requested, only if we
- // dont apply on blockrequests the restriction of flood control)
- currentBlockHash = self.currentBlockHash
- if currentBlockHash == hash {
- if self.currentBlock == nil {
- // signal to head section process
- glog.V(logger.Detail).Infof("AddBlock: head block %s for peer <%s> (head: %s) received\n", hex(hash), self.id, hex(currentBlockHash))
- td = self.td
- } else {
- glog.V(logger.Detail).Infof("AddBlock: head block %s for peer <%s> (head: %s) already known", hex(hash), self.id, hex(currentBlockHash))
- }
- }
- return
-}
-
-// this will use the TD given by the first peer to update peer td, this helps second best peer selection
-func (self *peer) setChainInfoFromNode(n *node) {
- // in case best peer is lost
- block := n.block
- hash := block.Hash()
- if n.td != nil && n.td.Cmp(self.td) > 0 {
- glog.V(logger.Detail).Infof("AddBlock: update peer <%s> - head: %v->%v - TD: %v->%v", self.id, hex(self.currentBlockHash), hex(hash), self.td, n.td)
- self.td = n.td
- self.currentBlockHash = block.Hash()
- self.parentHash = block.ParentHash()
- self.currentBlock = block
- self.headSection = nil
- }
-}
-
-// distribute block request among known peers
-func (self *peers) requestBlocks(attempts int, hashes []common.Hash) {
- self.lock.RLock()
-
- defer self.lock.RUnlock()
- peerCount := len(self.peers)
- // on first attempt use the best peer
- if attempts == 0 && self.best != nil {
- glog.V(logger.Detail).Infof("request %v missing blocks from best peer <%s>", len(hashes), self.best.id)
- self.best.requestBlocks(hashes)
- return
- }
- repetitions := self.bp.Config.BlocksRequestRepetition
- if repetitions > peerCount {
- repetitions = peerCount
- }
- i := 0
- indexes := rand.Perm(peerCount)[0:repetitions]
- sort.Ints(indexes)
-
- glog.V(logger.Detail).Infof("request %v missing blocks from %v/%v peers", len(hashes), repetitions, peerCount)
- for _, peer := range self.peers {
- if i == indexes[0] {
- glog.V(logger.Detail).Infof("request length: %v", len(hashes))
- glog.V(logger.Detail).Infof("request %v missing blocks [%x/%x] from peer <%s>", len(hashes), hashes[0][:4], hashes[len(hashes)-1][:4], peer.id)
- peer.requestBlocks(hashes)
- indexes = indexes[1:]
- if len(indexes) == 0 {
- break
- }
- }
- i++
- }
- self.bp.putHashSlice(hashes)
-}
-
-// addPeer implements the logic for blockpool.AddPeer
-// returns 2 bool values
-// 1. true iff peer is promoted as best peer in the pool
-// 2. true iff peer is still suspended
-func (self *peers) addPeer(
- td *big.Int,
- currentBlockHash common.Hash,
- id string,
- requestBlockHashes func(common.Hash) error,
- requestBlocks func([]common.Hash) error,
- peerError func(*errs.Error),
-) (best bool, suspended bool) {
-
- self.lock.Lock()
- defer self.lock.Unlock()
- var previousBlockHash common.Hash
- if self.suspended(id) {
- suspended = true
- return
- }
- p, found := self.peers[id]
- if found {
- // when called on an already connected peer, it means a newBlockMsg is received
- // peer head info is updated
- p.setChainInfo(td, currentBlockHash)
- self.status.lock.Lock()
- self.status.values.NewBlocks++
- self.status.lock.Unlock()
- } else {
- p = self.newPeer(td, currentBlockHash, id, requestBlockHashes, requestBlocks, peerError)
-
- self.status.lock.Lock()
-
- self.status.peers[id]++
- self.status.values.NewBlocks++
- self.status.lock.Unlock()
-
- glog.V(logger.Debug).Infof("addPeer: add new peer <%v> with td %v and current block %s", id, td, hex(currentBlockHash))
- }
-
- // check if peer's current head block is known
- if self.bp.hasBlock(currentBlockHash) {
- // peer not ahead
- glog.V(logger.Debug).Infof("addPeer: peer <%v> with td %v and current block %s is behind", id, td, hex(currentBlockHash))
- return false, false
- }
-
- if self.best == p {
- // new block update for active current best peer -> request hashes
- glog.V(logger.Debug).Infof("addPeer: <%s> already the best peer. Request new head section info from %s", id, hex(currentBlockHash))
-
- if (previousBlockHash != common.Hash{}) {
- glog.V(logger.Detail).Infof("addPeer: <%s> head changed: %s -> %s ", id, hex(previousBlockHash), hex(currentBlockHash))
- p.headSectionC <- nil
- if entry := self.bp.get(previousBlockHash); entry != nil {
- glog.V(logger.Detail).Infof("addPeer: <%s> previous head : %v found in pool, activate", id, hex(previousBlockHash))
- self.bp.activateChain(entry.section, p, p.switchC, nil)
- p.sections = append(p.sections, previousBlockHash)
- }
- }
- best = true
- } else {
- // baseline is our own TD
- currentTD := self.bp.getTD()
- bestpeer := self.best
- if bestpeer != nil {
- bestpeer.lock.RLock()
- defer bestpeer.lock.RUnlock()
- currentTD = self.best.td
- }
- if td.Cmp(currentTD) > 0 {
- self.status.lock.Lock()
- self.status.bestPeers[p.id]++
- self.status.lock.Unlock()
- glog.V(logger.Debug).Infof("addPeer: peer <%v> (td: %v > current td %v) promoted best peer", id, td, currentTD)
- // fmt.Printf("best peer %v - \n", bestpeer, id)
- self.bp.switchPeer(bestpeer, p)
- self.best = p
- best = true
- }
- }
-
- return
-}
-
-// removePeer is called (via RemovePeer) by the eth protocol when the peer disconnects
-func (self *peers) removePeer(id string, del bool) {
- self.lock.Lock()
- defer self.lock.Unlock()
-
- p, found := self.peers[id]
- if !found {
- return
- }
- p.lock.Lock()
- defer p.lock.Unlock()
-
- if del {
- delete(self.peers, id)
- glog.V(logger.Debug).Infof("addPeer: remove peer <%v> (td: %v)", id, p.td)
- }
- // if current best peer is removed, need to find a better one
- if self.best == p {
- var newp *peer
- // only peers that are ahead of us are considered
- max := self.bp.getTD()
- // peer with the highest self-acclaimed TD is chosen
- for _, pp := range self.peers {
- // demoted peer's td should be 0
- if pp.id == id {
- pp.td = common.Big0
- pp.currentBlockHash = common.Hash{}
- continue
- }
- pp.lock.RLock()
- if pp.td.Cmp(max) > 0 {
- max = pp.td
- newp = pp
- }
- pp.lock.RUnlock()
- }
- if newp != nil {
- self.status.lock.Lock()
- self.status.bestPeers[p.id]++
- self.status.lock.Unlock()
- glog.V(logger.Debug).Infof("addPeer: peer <%v> (td: %v) promoted best peer", newp.id, newp.td)
- } else {
- glog.V(logger.Warn).Infof("addPeer: no suitable peers found")
- }
- self.best = newp
- // fmt.Printf("remove peer %v - %v\n", p.id, newp)
- self.bp.switchPeer(p, newp)
- }
-}
-
-// switchPeer launches section processes
-func (self *BlockPool) switchPeer(oldp, newp *peer) {
-
- // first quit AddBlockHashes, requestHeadSection and activateChain
- // by closing the old peer's switchC channel
- if oldp != nil {
- glog.V(logger.Detail).Infof("<%s> quit peer processes", oldp.id)
- // fmt.Printf("close %v - %v\n", oldp.id, newp)
- close(oldp.switchC)
- }
- if newp != nil {
- // if new best peer has no head section yet, create it and run it
- // otherwise head section is an element of peer.sections
- newp.idleC = make(chan bool)
- newp.switchC = make(chan bool)
- if newp.headSection == nil {
- glog.V(logger.Detail).Infof("[%s] head section for [%s] not created, requesting info", newp.id, hex(newp.currentBlockHash))
-
- if newp.idle {
- self.wg.Add(1)
- newp.idle = false
- self.syncing()
- }
-
- go func() {
- newp.run()
- if !newp.idle {
- self.wg.Done()
- newp.idle = true
- }
- }()
-
- }
-
- var connected = make(map[common.Hash]*section)
- var sections []common.Hash
- for _, hash := range newp.sections {
- glog.V(logger.Detail).Infof("activate chain starting from section [%s]", hex(hash))
- // if section not connected (ie, top of a contiguous sequence of sections)
- if connected[hash] == nil {
- // if not deleted, then reread from pool (it can be orphaned top half of a split section)
- if entry := self.get(hash); entry != nil {
- self.activateChain(entry.section, newp, newp.switchC, connected)
- connected[hash] = entry.section
- sections = append(sections, hash)
- }
- }
- }
- glog.V(logger.Detail).Infof("<%s> section processes (%v non-contiguous sequences, was %v before)", newp.id, len(sections), len(newp.sections))
- // need to lock now that newp is exposed to section processesr
- newp.lock.Lock()
- newp.sections = sections
- newp.lock.Unlock()
- }
- // finally deactivate section process for sections where newp didnt activate
- // newp activating section process changes the quit channel for this reason
- if oldp != nil {
- glog.V(logger.Detail).Infof("<%s> quit section processes", oldp.id)
- close(oldp.idleC)
- }
-}
-
-// getPeer looks up peer by id, returns peer and a bool value
-// that is true iff peer is current best peer
-func (self *peers) getPeer(id string) (p *peer, best bool) {
- self.lock.RLock()
- defer self.lock.RUnlock()
- if self.best != nil && self.best.id == id {
- return self.best, true
- }
- p = self.peers[id]
- return
-}
-
-// head section process
-
-func (self *peer) handleSection(sec *section) {
- self.lock.Lock()
- defer self.lock.Unlock()
- glog.V(logger.Detail).Infof("HeadSection: <%s> (head: %s) head section received [%s]-[%s]", self.id, hex(self.currentBlockHash), sectionhex(self.headSection), sectionhex(sec))
-
- self.headSection = sec
- self.blockHashesRequestTimer = nil
-
- if sec == nil {
- if self.idle {
- self.idle = false
- self.bp.wg.Add(1)
- self.bp.syncing()
- }
-
- self.headInfoTimer = time.After(self.bp.Config.BlockHashesTimeout)
- self.bestIdleTimer = nil
-
- glog.V(logger.Detail).Infof("HeadSection: <%s> head block hash changed (mined block received). New head %s", self.id, hex(self.currentBlockHash))
- } else {
- if !self.idle {
- self.idle = true
- self.bp.wg.Done()
- }
-
- self.headInfoTimer = nil
- self.bestIdleTimer = time.After(self.bp.Config.IdleBestPeerTimeout)
- glog.V(logger.Detail).Infof("HeadSection: <%s> (head: %s) head section [%s] created. Idle...", self.id, hex(self.currentBlockHash), sectionhex(sec))
- }
-}
-
-func (self *peer) getCurrentBlock(currentBlock *types.Block) {
- // called by update or after AddBlock signals that head block of current peer is received
- self.lock.Lock()
- defer self.lock.Unlock()
- if currentBlock == nil {
- if entry := self.bp.get(self.currentBlockHash); entry != nil {
- entry.node.lock.Lock()
- currentBlock = entry.node.block
- entry.node.lock.Unlock()
- }
- if currentBlock != nil {
- glog.V(logger.Detail).Infof("HeadSection: <%s> head block %s found in blockpool", self.id, hex(self.currentBlockHash))
- } else {
- glog.V(logger.Detail).Infof("HeadSection: <%s> head block %s not found... requesting it", self.id, hex(self.currentBlockHash))
- self.requestBlocks([]common.Hash{self.currentBlockHash})
- self.blocksRequestTimer = time.After(self.bp.Config.BlocksRequestInterval)
- return
- }
- } else {
- glog.V(logger.Detail).Infof("HeadSection: <%s> head block %s received (parent: %s)", self.id, hex(self.currentBlockHash), hex(currentBlock.ParentHash()))
- }
-
- self.currentBlock = currentBlock
- self.parentHash = currentBlock.ParentHash()
- glog.V(logger.Detail).Infof("HeadSection: <%s> head block %s found (parent: %s)... requesting hashes", self.id, hex(self.currentBlockHash), hex(self.parentHash))
- self.blockHashesRequestTimer = time.After(0)
- self.blocksRequestTimer = nil
-}
-
-func (self *peer) getBlockHashes() bool {
- self.lock.Lock()
- defer self.lock.Unlock()
- //if connecting parent is found
- if self.bp.hasBlock(self.parentHash) {
- glog.V(logger.Detail).Infof("HeadSection: <%s> parent block %s found in blockchain", self.id, hex(self.parentHash))
- err := self.bp.insertChain(types.Blocks([]*types.Block{self.currentBlock}))
-
- self.bp.status.lock.Lock()
- self.bp.status.values.BlocksInChain++
- self.bp.status.values.BlocksInPool--
- if err != nil {
- self.addError(ErrInvalidBlock, "%v", err)
- self.bp.status.badPeers[self.id]++
- } else {
- // XXX added currentBlock check (?)
- if self.currentBlock != nil && self.currentBlock.Td != nil && !self.currentBlock.Queued() {
- glog.V(logger.Detail).Infof("HeadSection: <%s> inserted %s to blockchain... check TD %v =?= %v", self.id, hex(self.parentHash), self.td, self.currentBlock.Td)
- if self.td.Cmp(self.currentBlock.Td) != 0 {
- self.addError(ErrIncorrectTD, "on block %x %v =?= %v", hex(self.parentHash), self.td, self.currentBlock.Td)
- self.bp.status.badPeers[self.id]++
- }
- }
-
- headKey := self.parentHash
- height := self.bp.status.chain[headKey] + 1
- self.bp.status.chain[self.currentBlockHash] = height
- if height > self.bp.status.values.LongestChain {
- self.bp.status.values.LongestChain = height
- }
- delete(self.bp.status.chain, headKey)
- }
- self.bp.status.lock.Unlock()
- } else {
- if parent := self.bp.get(self.parentHash); parent != nil {
- if self.bp.get(self.currentBlockHash) == nil {
- glog.V(logger.Detail).Infof("HeadSection: <%s> connecting parent %s found in pool... creating singleton section", self.id, hex(self.parentHash))
- self.bp.nodeCacheLock.Lock()
- n, ok := self.bp.nodeCache[self.currentBlockHash]
- if !ok {
- panic("not found in nodeCache")
- }
- self.bp.nodeCacheLock.Unlock()
- self.bp.newSection([]*node{n}).activate(self)
- } else {
- glog.V(logger.Detail).Infof("HeadSection: <%s> connecting parent %s found in pool...head section [%s] exists...not requesting hashes", self.id, hex(self.parentHash), sectionhex(parent.section))
- self.bp.activateChain(parent.section, self, self.switchC, nil)
- }
- } else {
- glog.V(logger.Detail).Infof("HeadSection: <%s> section [%s] requestBlockHashes", self.id, sectionhex(self.headSection))
- self.requestBlockHashes(self.currentBlockHash)
- self.blockHashesRequestTimer = time.After(self.bp.Config.BlockHashesRequestInterval)
- return false
- }
- }
- self.blockHashesRequestTimer = nil
- if !self.idle {
- self.idle = true
- self.headInfoTimer = nil
- self.bestIdleTimer = time.After(self.bp.Config.IdleBestPeerTimeout)
- self.bp.wg.Done()
- }
- return true
-}
-
-// main loop for head section process
-func (self *peer) run() {
-
- self.blocksRequestTimer = time.After(0)
- self.headInfoTimer = time.After(self.bp.Config.BlockHashesTimeout)
- self.bestIdleTimer = nil
-
- var ping = time.NewTicker(5 * time.Second)
-
-LOOP:
- for {
- select {
- // to minitor section process behaviour
- case <-ping.C:
- glog.V(logger.Detail).Infof("HeadSection: <%s> section with head %s, idle: %v", self.id, hex(self.currentBlockHash), self.idle)
-
- // signal from AddBlockHashes that head section for current best peer is created
- // if sec == nil, it signals that chain info has updated (new block message)
- case sec := <-self.headSectionC:
- self.handleSection(sec)
-
- // periodic check for block hashes or parent block/section
- case <-self.blockHashesRequestTimer:
- self.getBlockHashes()
-
- // signal from AddBlock that head block of current best peer has been received
- case currentBlock := <-self.currentBlockC:
- self.getCurrentBlock(currentBlock)
-
- // keep requesting until found or timed out
- case <-self.blocksRequestTimer:
- self.getCurrentBlock(nil)
-
- // quitting on timeout
- case <-self.headInfoTimer:
- self.peerError(self.bp.peers.errors.New(ErrInsufficientChainInfo, "timed out without providing block hashes or head block (td: %v, head: %s)", self.td, hex(self.currentBlockHash)))
-
- self.bp.status.lock.Lock()
- self.bp.status.badPeers[self.id]++
- self.bp.status.lock.Unlock()
- // there is no persistence here, so GC will just take care of cleaning up
-
- // signal for peer switch, quit
- case <-self.switchC:
- var complete = "incomplete "
- if self.idle {
- complete = "complete"
- }
- glog.V(logger.Detail).Infof("HeadSection: <%s> section with head %s %s... quit request loop due to peer switch", self.id, hex(self.currentBlockHash), complete)
- break LOOP
-
- // global quit for blockpool
- case <-self.bp.quit:
- break LOOP
-
- // best
- case <-self.bestIdleTimer:
- self.peerError(self.bp.peers.errors.New(ErrIdleTooLong, "timed out without providing new blocks (td: %v, head: %s)...quitting", self.td, hex(self.currentBlockHash)))
-
- self.bp.status.lock.Lock()
- self.bp.status.badPeers[self.id]++
- self.bp.status.lock.Unlock()
- glog.V(logger.Detail).Infof("HeadSection: <%s> (headsection [%s]) quit channel closed : timed out without providing new blocks...quitting", self.id, sectionhex(self.headSection))
- }
- }
-
- if !self.idle {
- self.idle = true
- self.bp.wg.Done()
- }
-}
diff --git a/blockpool/peers_test.go b/blockpool/peers_test.go
deleted file mode 100644
index 639abbc26..000000000
--- a/blockpool/peers_test.go
+++ /dev/null
@@ -1,211 +0,0 @@
-package blockpool
-
-import (
- "flag"
- "math/big"
- "testing"
- "time"
-
- "github.com/ethereum/go-ethereum/core"
- "github.com/ethereum/go-ethereum/core/types"
- "github.com/ethereum/go-ethereum/logger"
- "github.com/ethereum/go-ethereum/logger/glog"
-)
-
-var (
- _ = flag.Set("alsologtostderr", "true")
- // _ = flag.Set("log_dir", ".")
- _ = flag.Set("v", "5")
-)
-
-// the actual tests
-func TestAddPeer(t *testing.T) {
- glog.V(logger.Error).Infoln("logging...")
- hashPool, blockPool, blockPoolTester := newTestBlockPool(t)
- peer0 := blockPoolTester.newPeer("peer0", 2, 2)
- peer1 := blockPoolTester.newPeer("peer1", 4, 4)
- peer2 := blockPoolTester.newPeer("peer2", 6, 6)
- var bestpeer *peer
-
- blockPool.Start()
-
- // pool
- best := peer0.AddPeer()
- if !best {
- t.Errorf("peer0 (TD=2) not accepted as best")
- return
- }
- if blockPool.peers.best.id != "peer0" {
- t.Errorf("peer0 (TD=2) not set as best")
- return
- }
- peer0.serveBlocks(1, 2)
-
- best = peer2.AddPeer()
- if !best {
- t.Errorf("peer2 (TD=6) not accepted as best")
- return
- }
- if blockPool.peers.best.id != "peer2" {
- t.Errorf("peer2 (TD=6) not set as best")
- return
- }
- peer2.serveBlocks(5, 6)
-
- best = peer1.AddPeer()
- if best {
- t.Errorf("peer1 (TD=4) accepted as best")
- return
- }
- if blockPool.peers.best.id != "peer2" {
- t.Errorf("peer2 (TD=6) not set any more as best")
- return
- }
- if blockPool.peers.best.td.Cmp(big.NewInt(int64(6))) != 0 {
- t.Errorf("peer2 TD=6 not set")
- return
- }
-
- peer2.td = 8
- peer2.currentBlock = 8
- best = peer2.AddPeer()
- if !best {
- t.Errorf("peer2 (TD=8) not accepted as best")
- return
- }
- if blockPool.peers.best.id != "peer2" {
- t.Errorf("peer2 (TD=8) not set as best")
- return
- }
- if blockPool.peers.best.td.Cmp(big.NewInt(int64(8))) != 0 {
- t.Errorf("peer2 TD = 8 not updated")
- return
- }
-
- peer1.td = 6
- peer1.currentBlock = 6
- best = peer1.AddPeer()
- if best {
- t.Errorf("peer1 (TD=6) should not be set as best")
- return
- }
- if blockPool.peers.best.id == "peer1" {
- t.Errorf("peer1 (TD=6) should not be set as best")
- return
- }
- bestpeer, best = blockPool.peers.getPeer("peer1")
- if bestpeer.td.Cmp(big.NewInt(int64(6))) != 0 {
- t.Errorf("peer1 TD=6 should be updated")
- return
- }
-
- blockPool.RemovePeer("peer2")
- bestpeer, best = blockPool.peers.getPeer("peer2")
- if bestpeer != nil {
- t.Errorf("peer2 not removed")
- return
- }
-
- if blockPool.peers.best.id != "peer1" {
- t.Errorf("existing peer1 (TD=6) should be set as best peer")
- return
- }
-
- blockPool.RemovePeer("peer1")
- bestpeer, best = blockPool.peers.getPeer("peer1")
- if bestpeer != nil {
- t.Errorf("peer1 not removed")
- return
- }
-
- if blockPool.peers.best.id != "peer0" {
- t.Errorf("existing peer0 (TD=2) should be set as best peer")
- return
- }
-
- blockPool.RemovePeer("peer0")
- bestpeer, best = blockPool.peers.getPeer("peer0")
- if bestpeer != nil {
- t.Errorf("peer0 not removed")
- return
- }
-
- // adding back earlier peer ok
- peer0.currentBlock = 5
- peer0.td = 5
- best = peer0.AddPeer()
- if !best {
- t.Errorf("peer0 (TD=5) should be set as best")
- return
- }
-
- if blockPool.peers.best.id != "peer0" {
- t.Errorf("peer0 (TD=5) should be set as best")
- return
- }
- peer0.serveBlocks(4, 5)
-
- hash := hashPool.IndexesToHashes([]int{6})[0]
- newblock := &types.Block{Td: big.NewInt(int64(6)), HeaderHash: hash}
- blockPool.chainEvents.Post(core.ChainHeadEvent{newblock})
- time.Sleep(100 * time.Millisecond)
- if blockPool.peers.best != nil {
- t.Errorf("no peer should be ahead of self")
- return
- }
- best = peer1.AddPeer()
- if blockPool.peers.best != nil {
- t.Errorf("after peer1 (TD=6) still no peer should be ahead of self")
- return
- }
-
- best = peer2.AddPeer()
- if !best {
- t.Errorf("peer2 (TD=8) not accepted as best")
- return
- }
-
- blockPool.RemovePeer("peer2")
- if blockPool.peers.best != nil {
- t.Errorf("no peer should be ahead of self")
- return
- }
-
- blockPool.Stop()
-}
-
-func TestPeerPromotionByTdOnBlock(t *testing.T) {
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(4)
- peer0 := blockPoolTester.newPeer("peer0", 2, 2)
- peer1 := blockPoolTester.newPeer("peer1", 1, 1)
- peer2 := blockPoolTester.newPeer("peer2", 4, 4)
-
- blockPool.Start()
-
- peer0.AddPeer()
- peer0.serveBlocks(1, 2)
- best := peer1.AddPeer()
- // this tests that peer1 is not promoted over peer0 yet
- if best {
- t.Errorf("peer1 (TD=1) should not be set as best")
- return
- }
- best = peer2.AddPeer()
- peer2.serveBlocks(3, 4)
- peer2.serveBlockHashes(4, 3, 2, 1)
- peer1.sendBlocks(3, 4)
-
- blockPool.RemovePeer("peer2")
- if blockPool.peers.best.id != "peer1" {
- t.Errorf("peer1 (TD=3) should be set as best")
- return
- }
- peer1.serveBlocks(0, 1, 2, 3)
-
- blockPool.Wait(waitTimeout)
- blockPool.Stop()
- blockPoolTester.refBlockChain[4] = []int{}
- blockPoolTester.checkBlockChain(blockPoolTester.refBlockChain)
-}
diff --git a/blockpool/section.go b/blockpool/section.go
deleted file mode 100644
index cab88e561..000000000
--- a/blockpool/section.go
+++ /dev/null
@@ -1,673 +0,0 @@
-package blockpool
-
-import (
- "sync"
- "time"
-
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/core/types"
- "github.com/ethereum/go-ethereum/logger"
- "github.com/ethereum/go-ethereum/logger/glog"
-)
-
-/*
- section is the worker on each chain section in the block pool
- - remove the section if there are blocks missing after an absolute time
- - remove the section if there are maxIdleRounds of idle rounds of block requests with no response
- - periodically polls the chain section for missing blocks which are then requested from peers
- - registers the process controller on the peer so that if the peer is promoted as best peer the second time (after a disconnect of a better one), all active processes are switched back on unless they removed (inserted in blockchain, invalid or expired)
- - 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
-*/
-type section struct {
- lock sync.RWMutex
-
- parent *section // connecting section back in time towards blockchain
- child *section // connecting section forward in time
-
- top *node // the topmost node = head node = youngest node within the chain section
- bottom *node // the bottom node = root node = oldest node within the chain section
- nodes []*node
-
- peer *peer
- parentHash common.Hash
-
- blockHashes []common.Hash
-
- poolRootIndex int
-
- bp *BlockPool
-
- controlC chan *peer // to (de)register the current best peer
- poolRootC chan *peer // indicate connectedness to blockchain (well, known blocks)
- offC chan bool // closed if process terminated
- suicideC chan bool // initiate suicide on the section
- quitInitC chan bool // to signal end of initialisation
- forkC chan chan bool // freeze section process while splitting
- switchC chan bool // switching
- idleC chan bool // channel to indicate thai food
- processC chan *node //
- missingC chan *node //
-
- blocksRequestTimer <-chan time.Time
- blockHashesRequestTimer <-chan time.Time
- suicideTimer <-chan time.Time
-
- blocksRequests int
- blockHashesRequests int
-
- blocksRequestsComplete bool
- blockHashesRequestsComplete bool
- ready bool
- same bool
- initialised bool
- active bool
-
- step int
- idle int
- missing int
- lastMissing int
- depth int
- invalid bool
- poolRoot bool
-}
-
-//
-func (self *BlockPool) newSection(nodes []*node) *section {
- sec := &section{
- bottom: nodes[len(nodes)-1],
- top: nodes[0],
- nodes: nodes,
- poolRootIndex: len(nodes),
- bp: self,
- controlC: make(chan *peer),
- poolRootC: make(chan *peer),
- offC: make(chan bool),
- }
-
- for i, n := range nodes {
- entry := &entry{node: n, section: sec, index: &index{i}}
- self.set(n.hash, entry)
- }
-
- glog.V(logger.Detail).Infof("[%s] setup section process", sectionhex(sec))
-
- go sec.run()
- return sec
-}
-
-func (self *section) addSectionToBlockChain(p *peer) {
- self.bp.wg.Add(1)
- go func() {
-
- self.lock.Lock()
- defer self.lock.Unlock()
- defer func() {
- self.bp.wg.Done()
- }()
-
- var nodes []*node
- var n *node
- var keys []common.Hash
- var blocks []*types.Block
- for self.poolRootIndex > 0 {
- n = self.nodes[self.poolRootIndex-1]
- n.lock.RLock()
- block := n.block
- n.lock.RUnlock()
- if block == nil {
- break
- }
- self.poolRootIndex--
- keys = append(keys, n.hash)
- blocks = append(blocks, block)
- nodes = append(nodes, n)
- }
-
- if len(blocks) == 0 {
- return
- }
-
- self.bp.lock.Lock()
- for _, key := range keys {
- delete(self.bp.pool, key)
- }
- self.bp.lock.Unlock()
-
- glog.V(logger.Debug).Infof("[%s] insert %v blocks [%v/%v] into blockchain", sectionhex(self), len(blocks), hex(blocks[0].Hash()), hex(blocks[len(blocks)-1].Hash()))
- err := self.bp.insertChain(blocks)
- if err != nil {
- self.invalid = true
- self.bp.peers.peerError(n.blockBy, ErrInvalidBlock, "%v", err)
- glog.V(logger.Error).Infof("invalid block %x", n.hash)
- glog.V(logger.Error).Infof("penalise peers %v (hash), %v (block)", n.hashBy, n.blockBy)
-
- // or invalid block and the entire chain needs to be removed
- self.removeChain()
- } else {
- // check tds
- self.bp.wg.Add(1)
- go func() {
- self.bp.checkTD(nodes...)
- self.bp.wg.Done()
- }()
- // if all blocks inserted in this section
- // then need to try to insert blocks in child section
- if self.poolRootIndex == 0 {
- // if there is a child section, then recursively call itself:
- // also if section process is not terminated,
- // then signal blockchain connectivity with poolRootC
- if child := self.bp.getChild(self); child != nil {
- select {
- case <-child.offC:
- glog.V(logger.Detail).Infof("[%s] add complete child section [%s] to the blockchain", sectionhex(self), sectionhex(child))
- case child.poolRootC <- p:
- glog.V(logger.Detail).Infof("[%s] add incomplete child section [%s] to the blockchain", sectionhex(self), sectionhex(child))
- }
- child.addSectionToBlockChain(p)
- } else {
- glog.V(logger.Detail).Infof("[%s] no child section in pool", sectionhex(self))
- }
- glog.V(logger.Detail).Infof("[%s] section completely inserted to blockchain - remove", sectionhex(self))
- // complete sections are removed. if called from within section process,
- // this must run in its own go routine to avoid deadlock
- self.remove()
- }
- }
-
- self.bp.status.lock.Lock()
- if err == nil {
- headKey := blocks[0].ParentHash()
- height := self.bp.status.chain[headKey] + len(blocks)
- self.bp.status.chain[blocks[len(blocks)-1].Hash()] = height
- if height > self.bp.status.values.LongestChain {
- self.bp.status.values.LongestChain = height
- }
- delete(self.bp.status.chain, headKey)
- }
- self.bp.status.values.BlocksInChain += len(blocks)
- self.bp.status.values.BlocksInPool -= len(blocks)
- if err != nil {
- self.bp.status.badPeers[n.blockBy]++
- }
- self.bp.status.lock.Unlock()
-
- }()
-
-}
-
-func (self *section) run() {
-
- // absolute time after which sub-chain is killed if not complete (some blocks are missing)
- self.suicideC = make(chan bool)
- self.forkC = make(chan chan bool)
- self.suicideTimer = time.After(self.bp.Config.BlocksTimeout)
-
- // node channels for the section
- // container for missing block hashes
- var checking bool
- var ping = time.NewTicker(5 * time.Second)
-
-LOOP:
- for !self.blockHashesRequestsComplete || !self.blocksRequestsComplete {
-
- select {
- case <-ping.C:
- var name = "no peer"
- if self.peer != nil {
- name = self.peer.id
- }
- glog.V(logger.Detail).Infof("[%s] peer <%s> active: %v", sectionhex(self), name, self.active)
-
- // global quit from blockpool
- case <-self.bp.quit:
- break LOOP
-
- // pause for peer switching
- case <-self.switchC:
- self.switchC = nil
-
- case p := <-self.poolRootC:
- // signal on pool root channel indicates that the blockpool is
- // connected to the blockchain, insert the longest chain of blocks
- // ignored in idle mode to avoid inserting chain sections of non-live peers
- self.poolRoot = true
- // switch off hash requests in case they were on
- self.blockHashesRequestTimer = nil
- self.blockHashesRequestsComplete = true
- self.switchOn(p)
-
- // peer quit or demoted, put section in idle mode
- case <-self.idleC:
- // peer quit or demoted, put section in idle mode
- glog.V(logger.Debug).Infof("[%s] peer <%s> quit or demoted", sectionhex(self), self.peer.id)
- self.switchOff()
- self.idleC = nil
-
- // timebomb - if section is not complete in time, nuke the entire chain
- case <-self.suicideTimer:
- self.removeChain()
- glog.V(logger.Debug).Infof("[%s] timeout. (%v total attempts): missing %v/%v/%v...suicide", sectionhex(self), self.blocksRequests, self.missing, self.lastMissing, self.depth)
- self.suicideTimer = nil
- break LOOP
-
- // closing suicideC triggers section suicide: removes section nodes from pool and terminates section process
- case <-self.suicideC:
- glog.V(logger.Detail).Infof("[%s] quit", sectionhex(self))
- break LOOP
-
- // alarm for checking blocks in the section
- case <-self.blocksRequestTimer:
- glog.V(logger.Detail).Infof("[%s] alarm: block request time", sectionhex(self))
- self.processC = self.missingC
-
- // alarm for checking parent of the section or sending out hash requests
- case <-self.blockHashesRequestTimer:
- glog.V(logger.Detail).Infof("[%s] alarm: hash request time", sectionhex(self))
- self.blockHashesRequest()
-
- // activate this section process with a peer
- case p := <-self.controlC:
- if p == nil {
- self.switchOff()
- } else {
- self.switchOn(p)
- }
- self.bp.wg.Done()
- // blocks the process until section is split at the fork
- case waiter := <-self.forkC:
- <-waiter
- self.initialised = false
- self.quitInitC = nil
-
- //
- case n, ok := <-self.processC:
- // channel closed, first iteration finished
- if !ok && !self.initialised {
- glog.V(logger.Detail).Infof("[%s] section initalised: missing %v/%v/%v", sectionhex(self), self.missing, self.lastMissing, self.depth)
- self.initialised = true
- self.processC = nil
- self.checkRound()
- checking = false
- break
- }
- if !checking {
- self.step = 0
- self.missing = 0
- checking = true
- }
- self.step++
-
- n.lock.RLock()
- block := n.block
- n.lock.RUnlock()
-
- // if node has no block, request it (buffer it for batch request)
- // feed it to missingC channel for the next round
- if block == nil {
- pos := self.missing % self.bp.Config.BlockBatchSize
- if pos == 0 {
- if self.missing != 0 {
- self.bp.requestBlocks(self.blocksRequests, self.blockHashes[:])
- }
- self.blockHashes = self.bp.getHashSlice()
- }
- self.blockHashes[pos] = n.hash
- self.missing++
- self.missingC <- n
- } else {
- // checking for parent block
- if self.poolRoot {
- // if node has got block (received via async AddBlock call from protocol)
- if self.step == self.lastMissing {
- // current root of the pool
- glog.V(logger.Detail).Infof("[%s] received block for current pool root %s", sectionhex(self), hex(n.hash))
- self.addSectionToBlockChain(self.peer)
- }
- } else {
- if (self.parentHash == common.Hash{}) && n == self.bottom {
- self.parentHash = block.ParentHash()
- glog.V(logger.Detail).Infof("[%s] got parent head block hash %s...checking", sectionhex(self), hex(self.parentHash))
- self.blockHashesRequest()
- }
- }
- }
- if self.initialised && self.step == self.lastMissing {
- glog.V(logger.Detail).Infof("[%s] check if new blocks arrived (attempt %v): missing %v/%v/%v", sectionhex(self), self.blocksRequests, self.missing, self.lastMissing, self.depth)
- self.checkRound()
- checking = false
- }
- } // select
- } // for
-
- close(self.offC)
- if self.peer != nil {
- self.active = false
- self.bp.wg.Done()
- }
-
- glog.V(logger.Detail).Infof("[%s] section process terminated: %v blocks retrieved (%v attempts), hash requests complete on root (%v attempts).", sectionhex(self), self.depth, self.blocksRequests, self.blockHashesRequests)
-
-}
-
-func (self *section) switchOn(newpeer *peer) {
-
- oldpeer := self.peer
- // reset switchC/switchC to current best peer
- self.idleC = newpeer.idleC
- self.switchC = newpeer.switchC
- self.peer = newpeer
-
- if oldpeer != newpeer {
- oldp := "no peer"
- newp := "no peer"
- if oldpeer != nil {
- oldp = oldpeer.id
- }
- if newpeer != nil {
- newp = newpeer.id
- }
-
- glog.V(logger.Detail).Infof("[%s] active mode <%s> -> <%s>", sectionhex(self), oldp, newp)
- }
-
- // activate section with current peer
- if oldpeer == nil {
- self.bp.wg.Add(1)
- self.active = true
-
- if !self.blockHashesRequestsComplete {
- self.blockHashesRequestTimer = time.After(0)
- }
- if !self.blocksRequestsComplete {
- if !self.initialised {
- if self.quitInitC != nil {
- <-self.quitInitC
- }
- self.missingC = make(chan *node, self.bp.Config.BlockHashesBatchSize)
- self.processC = make(chan *node, self.bp.Config.BlockHashesBatchSize)
- self.quitInitC = make(chan bool)
-
- self.step = 0
- self.missing = 0
- self.depth = len(self.nodes)
- self.lastMissing = self.depth
-
- self.feedNodes()
- } else {
- self.blocksRequestTimer = time.After(0)
- }
- }
- }
-}
-
-// put the section to idle mode
-func (self *section) switchOff() {
- // active -> idle
- if self.peer != nil {
- oldp := "no peer"
- oldpeer := self.peer
- if oldpeer != nil {
- oldp = oldpeer.id
- }
- glog.V(logger.Detail).Infof("[%s] idle mode peer <%s> -> <> (%v total attempts): missing %v/%v/%v", sectionhex(self), oldp, self.blocksRequests, self.missing, self.lastMissing, self.depth)
-
- self.active = false
- self.peer = nil
- // turn off timers
- self.blocksRequestTimer = nil
- self.blockHashesRequestTimer = nil
-
- if self.quitInitC != nil {
- <-self.quitInitC
- self.quitInitC = nil
- }
- self.processC = nil
- self.bp.wg.Done()
- }
-}
-
-// iterates through nodes of a section to feed processC
-// used to initialise chain section
-func (self *section) feedNodes() {
- // if not run at least once fully, launch iterator
- self.bp.wg.Add(1)
- go func() {
- self.lock.Lock()
- defer self.lock.Unlock()
- defer func() {
- self.bp.wg.Done()
- }()
- var n *node
- INIT:
- for _, n = range self.nodes {
- select {
- case self.processC <- n:
- case <-self.bp.quit:
- break INIT
- }
- }
- close(self.processC)
- close(self.quitInitC)
- }()
-}
-
-func (self *section) blockHashesRequest() {
-
- if self.switchC != nil {
- self.bp.chainLock.Lock()
- parentSection := self.parent
-
- if parentSection == nil {
-
- // only link to new parent if not switching peers
- if (self.parentHash != common.Hash{}) {
- if parent := self.bp.get(self.parentHash); parent != nil {
- parentSection = parent.section
- glog.V(logger.Detail).Infof("[%s] blockHashesRequest: parent section [%s] linked\n", sectionhex(self), sectionhex(parentSection))
- link(parentSection, self)
- } else {
- if self.bp.hasBlock(self.parentHash) {
- self.poolRoot = true
- glog.V(logger.Detail).Infof("[%s] blockHashesRequest: parentHash known ... inserting section in blockchain", sectionhex(self))
- self.addSectionToBlockChain(self.peer)
- self.blockHashesRequestTimer = nil
- self.blockHashesRequestsComplete = true
- }
- }
- }
- }
- self.bp.chainLock.Unlock()
-
- if !self.poolRoot {
- if parentSection != nil {
- // activate parent section with this peer
- // but only if not during switch mode
- glog.V(logger.Detail).Infof("[%s] parent section [%s] activated\n", sectionhex(self), sectionhex(parentSection))
- self.bp.activateChain(parentSection, self.peer, self.peer.switchC, nil)
- // if not root of chain, switch off
- glog.V(logger.Detail).Infof("[%s] parent found, hash requests deactivated (after %v total attempts)\n", sectionhex(self), self.blockHashesRequests)
- self.blockHashesRequestTimer = nil
- self.blockHashesRequestsComplete = true
- } else {
- self.blockHashesRequests++
- glog.V(logger.Detail).Infof("[%s] hash request on root (%v total attempts)\n", sectionhex(self), self.blockHashesRequests)
- self.peer.requestBlockHashes(self.bottom.hash)
- self.blockHashesRequestTimer = time.After(self.bp.Config.BlockHashesRequestInterval)
- }
- }
- }
-}
-
-// checks number of missing blocks after each round of request and acts accordingly
-func (self *section) checkRound() {
- if self.missing == 0 {
- // no missing blocks
- glog.V(logger.Detail).Infof("[%s] section checked: got all blocks. process complete (%v total blocksRequests): missing %v/%v/%v", sectionhex(self), self.blocksRequests, self.missing, self.lastMissing, self.depth)
- self.blocksRequestsComplete = true
- self.blocksRequestTimer = nil
- } else {
- // some missing blocks
- glog.V(logger.Detail).Infof("[%s] section checked: missing %v/%v/%v", sectionhex(self), self.missing, self.lastMissing, self.depth)
- self.blocksRequests++
- pos := self.missing % self.bp.Config.BlockBatchSize
- if pos == 0 {
- pos = self.bp.Config.BlockBatchSize
- }
- self.bp.requestBlocks(self.blocksRequests, self.blockHashes[:pos])
-
- // handle idle rounds
- if self.missing == self.lastMissing {
- // idle round
- if self.same {
- // more than once
- self.idle++
- // too many idle rounds
- if self.idle >= self.bp.Config.BlocksRequestMaxIdleRounds {
- glog.V(logger.Detail).Infof("[%s] block requests had %v idle rounds (%v total attempts): missing %v/%v/%v\ngiving up...", sectionhex(self), self.idle, self.blocksRequests, self.missing, self.lastMissing, self.depth)
- self.removeChain()
- }
- } else {
- self.idle = 0
- }
- self.same = true
- } else {
- self.same = false
- }
- self.lastMissing = self.missing
- // put processC offline
- self.processC = nil
- self.blocksRequestTimer = time.After(self.bp.Config.BlocksRequestInterval)
- }
-}
-
-/*
- link connects two sections via parent/child fields
- creating a doubly linked list
- caller must hold BlockPool chainLock
-*/
-func link(parent *section, child *section) {
- if parent != nil {
- exChild := parent.child
- parent.child = child
- if exChild != nil && exChild != child {
- if child != nil {
- // if child is nil it is not a real fork
- glog.V(logger.Detail).Infof("[%s] chain fork [%s] -> [%s]", sectionhex(parent), sectionhex(exChild), sectionhex(child))
- }
- exChild.parent = nil
- }
- }
- if child != nil {
- exParent := child.parent
- if exParent != nil && exParent != parent {
- if parent != nil {
- // if parent is nil it is not a real fork, but suicide delinking section
- glog.V(logger.Detail).Infof("[%s] chain reverse fork [%s] -> [%s]", sectionhex(child), sectionhex(exParent), sectionhex(parent))
- }
- exParent.child = nil
- }
- child.parent = parent
- }
-}
-
-/*
- handle forks where connecting node is mid-section
- by splitting section at fork
- no splitting needed if connecting node is head of a section
- caller must hold chain lock
-*/
-func (self *BlockPool) splitSection(parent *section, entry *entry) {
- glog.V(logger.Detail).Infof("[%s] split section at fork", sectionhex(parent))
- parent.deactivate()
- waiter := make(chan bool)
- parent.wait(waiter)
- chain := parent.nodes
- parent.nodes = chain[entry.index.int:]
- parent.top = parent.nodes[0]
- parent.poolRootIndex -= entry.index.int
- orphan := self.newSection(chain[0:entry.index.int])
- link(orphan, parent.child)
- close(waiter)
- orphan.deactivate()
-}
-
-func (self *section) wait(waiter chan bool) {
- self.forkC <- waiter
-}
-
-func (self *BlockPool) linkSections(nodes []*node, parent, child *section) (sec *section) {
- // if new section is created, link it to parent/child sections
- // and launch section process fetching block and further hashes
- if len(nodes) > 0 {
- sec = self.newSection(nodes)
- glog.V(logger.Debug).Infof("[%s]->[%s](%v)->[%s] new chain section", sectionhex(parent), sectionhex(sec), len(nodes), sectionhex(child))
- link(parent, sec)
- link(sec, child)
- } else {
- if parent != nil && child != nil {
- // now this can only happen if we allow response to hash request to include <from> hash
- // in this case we just link parent and child (without needing root block of child section)
- glog.V(logger.Debug).Infof("[%s]->[%s] connecting known sections", sectionhex(parent), sectionhex(child))
- link(parent, child)
- }
- }
- return
-}
-
-func (self *section) activate(p *peer) {
- self.bp.wg.Add(1)
- select {
- case <-self.offC:
- glog.V(logger.Detail).Infof("[%s] completed section process. cannot activate for peer <%s>", sectionhex(self), p.id)
- self.bp.wg.Done()
- case self.controlC <- p:
- glog.V(logger.Detail).Infof("[%s] activate section process for peer <%s>", sectionhex(self), p.id)
- }
-}
-
-func (self *section) deactivate() {
- self.bp.wg.Add(1)
- self.controlC <- nil
-}
-
-// removes this section exacly
-func (self *section) remove() {
- select {
- case <-self.offC:
- close(self.suicideC)
- glog.V(logger.Detail).Infof("[%s] remove: suicide", sectionhex(self))
- case <-self.suicideC:
- glog.V(logger.Detail).Infof("[%s] remove: suicided already", sectionhex(self))
- default:
- glog.V(logger.Detail).Infof("[%s] remove: suicide", sectionhex(self))
- close(self.suicideC)
- }
- self.unlink()
- self.bp.remove(self)
- glog.V(logger.Detail).Infof("[%s] removed section.", sectionhex(self))
-
-}
-
-// remove a section and all its descendents from the pool
-func (self *section) removeChain() {
- // need to get the child before removeSection delinks the section
- self.bp.chainLock.RLock()
- child := self.child
- self.bp.chainLock.RUnlock()
-
- glog.V(logger.Detail).Infof("[%s] remove chain", sectionhex(self))
- self.remove()
- if child != nil {
- child.removeChain()
- }
-}
-
-// unlink a section from its parent/child
-func (self *section) unlink() {
- // first delink from child and parent under chainlock
- self.bp.chainLock.Lock()
- link(nil, self)
- link(self, nil)
- self.bp.chainLock.Unlock()
-}
diff --git a/blockpool/status.go b/blockpool/status.go
deleted file mode 100644
index 02e358510..000000000
--- a/blockpool/status.go
+++ /dev/null
@@ -1,111 +0,0 @@
-package blockpool
-
-import (
- "fmt"
- "sync"
-
- "github.com/ethereum/go-ethereum/common"
-)
-
-type statusValues struct {
- BlockHashes int // number of hashes fetched this session
- BlockHashesInPool int // number of hashes currently in the pool
- Blocks int // number of blocks fetched this session
- BlocksInPool int // number of blocks currently in the pool
- BlocksInChain int // number of blocks inserted/connected to the blockchain this session
- NewBlocks int // number of new blocks (received with new blocks msg) this session
- Forks int // number of chain forks in the blockchain (poolchain) this session
- LongestChain int // the longest chain inserted since the start of session (aka session blockchain height)
- BestPeer []byte //Pubkey
- Syncing bool // requesting, updating etc
- Peers int // cumulative number of all different registered peers since the start of this session
- ActivePeers int // cumulative number of all different peers that contributed a hash or block since the start of this session
- LivePeers int // number of live peers registered with the block pool (supposed to be redundant but good sanity check
- BestPeers int // cumulative number of all peers that at some point were promoted as best peer (peer with highest TD status) this session
- BadPeers int // cumulative number of all peers that violated the protocol (invalid block or pow, unrequested hash or block, etc)
-}
-
-type status struct {
- lock sync.Mutex
- values statusValues
- chain map[common.Hash]int
- peers map[string]int
- bestPeers map[string]int
- badPeers map[string]int
- activePeers map[string]int
-}
-
-func newStatus() *status {
- return &status{
- chain: make(map[common.Hash]int),
- peers: make(map[string]int),
- bestPeers: make(map[string]int),
- badPeers: make(map[string]int),
- activePeers: make(map[string]int),
- }
-}
-
-type Status struct {
- statusValues
-}
-
-// blockpool status for reporting
-func (self *BlockPool) Status() *Status {
- self.status.lock.Lock()
- defer self.status.lock.Unlock()
- self.status.values.ActivePeers = len(self.status.activePeers)
- self.status.values.BestPeers = len(self.status.bestPeers)
- self.status.values.BadPeers = len(self.status.badPeers)
- self.status.values.LivePeers = len(self.peers.peers)
- self.status.values.Peers = len(self.status.peers)
- self.status.values.BlockHashesInPool = len(self.pool)
- return &Status{self.status.values}
-}
-
-func (self *Status) String() string {
- return fmt.Sprintf(`
- Syncing: %v
- BlockHashes: %v
- BlockHashesInPool: %v
- Blocks: %v
- BlocksInPool: %v
- BlocksInChain: %v
- NewBlocks: %v
- Forks: %v
- LongestChain: %v
- Peers: %v
- LivePeers: %v
- ActivePeers: %v
- BestPeers: %v
- BadPeers: %v
-`,
- self.Syncing,
- self.BlockHashes,
- self.BlockHashesInPool,
- self.Blocks,
- self.BlocksInPool,
- self.BlocksInChain,
- self.NewBlocks,
- self.Forks,
- self.LongestChain,
- self.Peers,
- self.LivePeers,
- self.ActivePeers,
- self.BestPeers,
- self.BadPeers,
- )
-}
-
-func (self *BlockPool) syncing() {
- self.status.lock.Lock()
- defer self.status.lock.Unlock()
- if !self.status.values.Syncing {
- self.status.values.Syncing = true
- go func() {
- self.wg.Wait()
- self.status.lock.Lock()
- self.status.values.Syncing = false
- self.status.lock.Unlock()
- }()
- }
-}
diff --git a/blockpool/status_test.go b/blockpool/status_test.go
deleted file mode 100644
index f7e63e421..000000000
--- a/blockpool/status_test.go
+++ /dev/null
@@ -1,244 +0,0 @@
-package blockpool
-
-import (
- "fmt"
- "testing"
- "time"
-
- "github.com/ethereum/go-ethereum/blockpool/test"
-)
-
-var statusFields = []string{
- "BlockHashes",
- "BlockHashesInPool",
- "Blocks",
- "BlocksInPool",
- "BlocksInChain",
- "NewBlocks",
- "Forks",
- "LongestChain",
- "Peers",
- "LivePeers",
- "ActivePeers",
- "BestPeers",
- "BadPeers",
-}
-
-func getStatusValues(s *Status) []int {
- return []int{
- s.BlockHashes,
- s.BlockHashesInPool,
- s.Blocks,
- s.BlocksInPool,
- s.BlocksInChain,
- s.NewBlocks,
- s.Forks,
- s.LongestChain,
- s.Peers,
- s.LivePeers,
- s.ActivePeers,
- s.BestPeers,
- s.BadPeers,
- }
-}
-
-func checkStatus(t *testing.T, bp *BlockPool, syncing bool, expected []int) (err error) {
- s := bp.Status()
- if s.Syncing != syncing {
- err = fmt.Errorf("status for Syncing incorrect. expected %v, got %v", syncing, s.Syncing)
- return
- }
- got := getStatusValues(s)
- for i, v := range expected {
- err = test.CheckInt(statusFields[i], got[i], v, t)
- if err != nil {
- return
- }
- }
- return
-}
-
-func TestBlockPoolStatus(t *testing.T) {
- var err error
- n := 3
- for n > 0 {
- n--
- err = testBlockPoolStatus(t)
- if err != nil {
- t.Log(err)
- continue
- } else {
- return
- }
- }
- if err != nil {
- t.Errorf("no pass out of 3: %v", err)
- }
-}
-
-func testBlockPoolStatus(t *testing.T) (err error) {
-
- _, blockPool, blockPoolTester := newTestBlockPool(t)
- blockPoolTester.blockChain[0] = nil
- blockPoolTester.initRefBlockChain(12)
- blockPoolTester.refBlockChain[3] = []int{4, 7}
- blockPoolTester.refBlockChain[5] = []int{10}
- blockPoolTester.refBlockChain[6] = []int{11}
- blockPoolTester.refBlockChain[9] = []int{6}
- delete(blockPoolTester.refBlockChain, 10)
-
- blockPool.Start()
-
- peer1 := blockPoolTester.newPeer("peer1", 9, 9)
- peer2 := blockPoolTester.newPeer("peer2", 10, 10)
- peer3 := blockPoolTester.newPeer("peer3", 11, 11)
- peer4 := blockPoolTester.newPeer("peer4", 9, 9)
- peer2.blocksRequestsMap = peer1.blocksRequestsMap
-
- var expected []int
- expected = []int{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
- err = checkStatus(nil, blockPool, false, expected)
- if err != nil {
- return
- }
-
- peer1.AddPeer()
-
- expected = []int{0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer1.serveBlocks(8, 9)
- expected = []int{1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer1.serveBlockHashes(9, 8, 7, 3, 2)
- expected = []int{5, 5, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer1.serveBlocks(3, 7, 8)
- expected = []int{5, 5, 3, 3, 0, 1, 0, 0, 1, 1, 1, 1, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer1.serveBlocks(2, 3)
- expected = []int{5, 5, 4, 4, 0, 1, 0, 0, 1, 1, 1, 1, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer4.AddPeer()
- expected = []int{5, 5, 4, 4, 0, 2, 0, 0, 2, 2, 1, 1, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer2.AddPeer()
- expected = []int{5, 5, 4, 4, 0, 3, 0, 0, 3, 3, 1, 2, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer2.serveBlocks(5, 10)
- peer2.serveBlockHashes(10, 5, 4, 3, 2)
- expected = []int{8, 8, 5, 5, 0, 3, 1, 0, 3, 3, 2, 2, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer2.serveBlocks(2, 3, 4)
- expected = []int{8, 8, 6, 6, 0, 3, 1, 0, 3, 3, 2, 2, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- blockPool.RemovePeer("peer2")
- expected = []int{8, 8, 6, 6, 0, 3, 1, 0, 3, 2, 2, 2, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer1.serveBlockHashes(2, 1, 0)
- expected = []int{9, 9, 6, 6, 0, 3, 1, 0, 3, 2, 2, 2, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer1.serveBlocks(1, 2)
- expected = []int{9, 9, 7, 7, 0, 3, 1, 0, 3, 2, 2, 2, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer1.serveBlocks(4, 5)
- expected = []int{9, 9, 8, 8, 0, 3, 1, 0, 3, 2, 2, 2, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer3.AddPeer()
- expected = []int{9, 9, 8, 8, 0, 4, 1, 0, 4, 3, 2, 3, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer3.serveBlocks(6, 11)
- expected = []int{10, 9, 9, 9, 0, 4, 1, 0, 4, 3, 3, 3, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer3.serveBlockHashes(11, 6, 9)
- expected = []int{11, 11, 9, 9, 0, 4, 1, 0, 4, 3, 3, 3, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer4.sendBlocks(11, 12)
- expected = []int{11, 11, 9, 9, 0, 4, 1, 0, 4, 3, 4, 3, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
- peer3.serveBlocks(9, 6)
- expected = []int{11, 11, 10, 10, 0, 4, 1, 0, 4, 3, 4, 3, 0}
- err = checkStatus(nil, blockPool, true, expected)
- if err != nil {
- return
- }
-
- peer3.serveBlocks(0, 1)
- blockPool.Wait(waitTimeout)
- time.Sleep(200 * time.Millisecond)
-
- expected = []int{11, 3, 11, 3, 8, 4, 1, 8, 4, 3, 4, 3, 0}
- err = checkStatus(nil, blockPool, false, expected)
- blockPool.Stop()
-
- if err != nil {
- return
- }
- return nil
-}
diff --git a/blockpool/test/hash_pool.go b/blockpool/test/hash_pool.go
deleted file mode 100644
index df3c750f9..000000000
--- a/blockpool/test/hash_pool.go
+++ /dev/null
@@ -1,55 +0,0 @@
-package test
-
-import (
- "sync"
-
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/crypto"
-)
-
-// hashPool is a test helper, that allows random hashes to be referred to by integers
-type TestHashPool struct {
- intToHash
- hashToInt
- lock sync.Mutex
-}
-
-func NewHashPool() *TestHashPool {
- return &TestHashPool{intToHash: make(intToHash), hashToInt: make(hashToInt)}
-}
-
-type intToHash map[int]common.Hash
-
-type hashToInt map[common.Hash]int
-
-func newHash(i int) common.Hash {
- return common.BytesToHash(crypto.Sha3([]byte(string(i))))
-}
-
-func (self *TestHashPool) IndexesToHashes(indexes []int) (hashes []common.Hash) {
- self.lock.Lock()
- defer self.lock.Unlock()
- for _, i := range indexes {
- hash, found := self.intToHash[i]
- if !found {
- hash = newHash(i)
- self.intToHash[i] = hash
- self.hashToInt[hash] = i
- }
- hashes = append(hashes, hash)
- }
- return
-}
-
-func (self *TestHashPool) HashesToIndexes(hashes []common.Hash) (indexes []int) {
- self.lock.Lock()
- defer self.lock.Unlock()
- for _, hash := range hashes {
- i, found := self.hashToInt[hash]
- if !found {
- i = -1
- }
- indexes = append(indexes, i)
- }
- return
-}
diff --git a/blockpool/test/logger.go b/blockpool/test/logger.go
deleted file mode 100644
index 2828ffc83..000000000
--- a/blockpool/test/logger.go
+++ /dev/null
@@ -1,74 +0,0 @@
-package test
-
-import (
- "log"
- "os"
- "sync"
- "testing"
-
- "github.com/ethereum/go-ethereum/logger"
-)
-
-// logging in tests
-
-var once sync.Once
-
-/* usage:
-func TestFunc(t *testing.T) {
- test.LogInit()
- // test
-}
-*/
-func LogInit() {
- once.Do(func() {
- logger.NewStdLogSystem(os.Stdout, log.LstdFlags, logger.LogLevel(logger.DebugDetailLevel))
- })
-}
-
-type testLogger struct{ t *testing.T }
-
-/* usage:
-func TestFunc(t *testing.T) {
- defer test.Testlog.Detach()
- // test
-}
-*/
-func Testlog(t *testing.T) testLogger {
- logger.Reset()
- l := testLogger{t}
- logger.AddLogSystem(l)
- return l
-}
-
-func (l testLogger) LogPrint(msg logger.LogMsg) {
- l.t.Log(msg.String())
-}
-
-func (testLogger) Detach() {
- logger.Flush()
- logger.Reset()
-}
-
-type benchLogger struct{ b *testing.B }
-
-/* usage:
-func BenchmarkFunc(b *testing.B) {
- defer test.Benchlog.Detach()
- // test
-}
-*/
-func Benchlog(b *testing.B) benchLogger {
- logger.Reset()
- l := benchLogger{b}
- logger.AddLogSystem(l)
- return l
-}
-
-func (l benchLogger) LogPrint(msg logger.LogMsg) {
- l.b.Log(msg.String())
-}
-
-func (benchLogger) Detach() {
- logger.Flush()
- logger.Reset()
-}
diff --git a/blockpool/test/util.go b/blockpool/test/util.go
deleted file mode 100644
index 930601278..000000000
--- a/blockpool/test/util.go
+++ /dev/null
@@ -1,41 +0,0 @@
-package test
-
-import (
- "fmt"
- "testing"
- "time"
-)
-
-// miscellaneous test helpers
-
-func CheckInt(name string, got int, expected int, t *testing.T) (err error) {
- if got != expected {
- err = fmt.Errorf("status for %v incorrect. expected %v, got %v", name, expected, got)
- if t != nil {
- t.Error(err)
- }
- }
- return
-}
-
-func CheckDuration(name string, got time.Duration, expected time.Duration, t *testing.T) (err error) {
- if got != expected {
- err = fmt.Errorf("status for %v incorrect. expected %v, got %v", name, expected, got)
- if t != nil {
- t.Error(err)
- }
- }
- return
-}
-
-func ArrayEq(a, b []int) bool {
- if len(a) != len(b) {
- return false
- }
- for i := range a {
- if a[i] != b[i] {
- return false
- }
- }
- return true
-}