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authorPéter Szilágyi <peterke@gmail.com>2015-05-26 19:00:21 +0800
committerPéter Szilágyi <peterke@gmail.com>2015-05-26 19:00:21 +0800
commiteafdc1f8e371fd698da33491a01799393249729a (patch)
treee834b1921a15767edf889d3bd2b9f9713c1101ed /eth
parentcc318ff8db20528cb567227c42c5d37dc892cc49 (diff)
downloaddexon-eafdc1f8e371fd698da33491a01799393249729a.tar.gz
dexon-eafdc1f8e371fd698da33491a01799393249729a.tar.zst
dexon-eafdc1f8e371fd698da33491a01799393249729a.zip
eth, eth/downloader: surface downloaded block origin, drop on error
Diffstat (limited to 'eth')
-rw-r--r--eth/downloader/downloader.go8
-rw-r--r--eth/downloader/downloader_test.go8
-rw-r--r--eth/downloader/queue.go20
-rw-r--r--eth/handler.go12
-rw-r--r--eth/sync.go14
5 files changed, 39 insertions, 23 deletions
diff --git a/eth/downloader/downloader.go b/eth/downloader/downloader.go
index fd588d2f3..0634baaed 100644
--- a/eth/downloader/downloader.go
+++ b/eth/downloader/downloader.go
@@ -93,6 +93,12 @@ type Downloader struct {
cancelLock sync.RWMutex // Lock to protect the cancel channel in delivers
}
+// Block is an origin-tagged blockchain block.
+type Block struct {
+ RawBlock *types.Block
+ OriginPeer string
+}
+
func New(mux *event.TypeMux, hasBlock hashCheckFn, getBlock getBlockFn) *Downloader {
downloader := &Downloader{
mux: mux,
@@ -177,7 +183,7 @@ func (d *Downloader) Synchronise(id string, hash common.Hash) error {
}
// TakeBlocks takes blocks from the queue and yields them to the caller.
-func (d *Downloader) TakeBlocks() types.Blocks {
+func (d *Downloader) TakeBlocks() []*Block {
return d.queue.TakeBlocks()
}
diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go
index 8b541d8b7..66be1ca18 100644
--- a/eth/downloader/downloader_test.go
+++ b/eth/downloader/downloader_test.go
@@ -88,10 +88,10 @@ func (dl *downloadTester) sync(peerId string, head common.Hash) error {
// syncTake is starts synchronising with a remote peer, but concurrently it also
// starts fetching blocks that the downloader retrieved. IT blocks until both go
// routines terminate.
-func (dl *downloadTester) syncTake(peerId string, head common.Hash) (types.Blocks, error) {
+func (dl *downloadTester) syncTake(peerId string, head common.Hash) ([]*Block, error) {
// Start a block collector to take blocks as they become available
done := make(chan struct{})
- took := []*types.Block{}
+ took := []*Block{}
go func() {
for running := true; running; {
select {
@@ -349,7 +349,7 @@ func TestNonExistingParentAttack(t *testing.T) {
if len(bs) != 1 {
t.Fatalf("retrieved block mismatch: have %v, want %v", len(bs), 1)
}
- if tester.hasBlock(bs[0].ParentHash()) {
+ if tester.hasBlock(bs[0].RawBlock.ParentHash()) {
t.Fatalf("tester knows about the unknown hash")
}
tester.downloader.Cancel()
@@ -364,7 +364,7 @@ func TestNonExistingParentAttack(t *testing.T) {
if len(bs) != 1 {
t.Fatalf("retrieved block mismatch: have %v, want %v", len(bs), 1)
}
- if !tester.hasBlock(bs[0].ParentHash()) {
+ if !tester.hasBlock(bs[0].RawBlock.ParentHash()) {
t.Fatalf("tester doesn't know about the origin hash")
}
}
diff --git a/eth/downloader/queue.go b/eth/downloader/queue.go
index 591a37773..7ea400dc4 100644
--- a/eth/downloader/queue.go
+++ b/eth/downloader/queue.go
@@ -36,7 +36,7 @@ type queue struct {
pendPool map[string]*fetchRequest // Currently pending block retrieval operations
blockPool map[common.Hash]int // Hash-set of the downloaded data blocks, mapping to cache indexes
- blockCache []*types.Block // Downloaded but not yet delivered blocks
+ blockCache []*Block // Downloaded but not yet delivered blocks
blockOffset int // Offset of the first cached block in the block-chain
lock sync.RWMutex
@@ -148,7 +148,7 @@ func (q *queue) Insert(hashes []common.Hash) []common.Hash {
// GetHeadBlock retrieves the first block from the cache, or nil if it hasn't
// been downloaded yet (or simply non existent).
-func (q *queue) GetHeadBlock() *types.Block {
+func (q *queue) GetHeadBlock() *Block {
q.lock.RLock()
defer q.lock.RUnlock()
@@ -159,7 +159,7 @@ func (q *queue) GetHeadBlock() *types.Block {
}
// GetBlock retrieves a downloaded block, or nil if non-existent.
-func (q *queue) GetBlock(hash common.Hash) *types.Block {
+func (q *queue) GetBlock(hash common.Hash) *Block {
q.lock.RLock()
defer q.lock.RUnlock()
@@ -176,18 +176,18 @@ func (q *queue) GetBlock(hash common.Hash) *types.Block {
}
// TakeBlocks retrieves and permanently removes a batch of blocks from the cache.
-func (q *queue) TakeBlocks() types.Blocks {
+func (q *queue) TakeBlocks() []*Block {
q.lock.Lock()
defer q.lock.Unlock()
// Accumulate all available blocks
- var blocks types.Blocks
+ blocks := []*Block{}
for _, block := range q.blockCache {
if block == nil {
break
}
blocks = append(blocks, block)
- delete(q.blockPool, block.Hash())
+ delete(q.blockPool, block.RawBlock.Hash())
}
// Delete the blocks from the slice and let them be garbage collected
// without this slice trick the blocks would stay in memory until nil
@@ -312,8 +312,10 @@ func (q *queue) Deliver(id string, blocks []*types.Block) (err error) {
return ErrInvalidChain
}
// Otherwise merge the block and mark the hash block
- q.blockCache[index] = block
-
+ q.blockCache[index] = &Block{
+ RawBlock: block,
+ OriginPeer: id,
+ }
delete(request.Hashes, hash)
delete(q.hashPool, hash)
q.blockPool[hash] = int(block.NumberU64())
@@ -342,6 +344,6 @@ func (q *queue) Alloc(offset int) {
size = blockCacheLimit
}
if len(q.blockCache) < size {
- q.blockCache = append(q.blockCache, make([]*types.Block, size-len(q.blockCache))...)
+ q.blockCache = append(q.blockCache, make([]*Block, size-len(q.blockCache))...)
}
}
diff --git a/eth/handler.go b/eth/handler.go
index 9117a70de..777a9c7c0 100644
--- a/eth/handler.go
+++ b/eth/handler.go
@@ -92,13 +92,13 @@ func NewProtocolManager(protocolVersion, networkId int, mux *event.TypeMux, txpo
return manager
}
-func (pm *ProtocolManager) removePeer(peer *peer) {
+func (pm *ProtocolManager) removePeer(id string) {
// Unregister the peer from the downloader
- pm.downloader.UnregisterPeer(peer.id)
+ pm.downloader.UnregisterPeer(id)
// Remove the peer from the Ethereum peer set too
- glog.V(logger.Detail).Infoln("Removing peer", peer.id)
- if err := pm.peers.Unregister(peer.id); err != nil {
+ glog.V(logger.Detail).Infoln("Removing peer", id)
+ if err := pm.peers.Unregister(id); err != nil {
glog.V(logger.Error).Infoln("Removal failed:", err)
}
}
@@ -148,7 +148,7 @@ func (pm *ProtocolManager) handle(p *peer) error {
glog.V(logger.Error).Infoln("Addition failed:", err)
return err
}
- defer pm.removePeer(p)
+ defer pm.removePeer(p.id)
if err := pm.downloader.RegisterPeer(p.id, p.recentHash, p.requestHashes, p.requestBlocks); err != nil {
return err
@@ -315,7 +315,7 @@ func (self *ProtocolManager) handleMsg(p *peer) error {
if _, err := self.chainman.InsertChain(types.Blocks{request.Block}); err != nil {
glog.V(logger.Error).Infoln("removed peer (", p.id, ") due to block error")
- self.removePeer(p)
+ self.removePeer(p.id)
return nil
}
diff --git a/eth/sync.go b/eth/sync.go
index 8a0da39ec..d93f83a78 100644
--- a/eth/sync.go
+++ b/eth/sync.go
@@ -5,6 +5,7 @@ import (
"sync/atomic"
"time"
+ "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
@@ -57,13 +58,20 @@ func (pm *ProtocolManager) processBlocks() error {
if len(blocks) == 0 {
return nil
}
- glog.V(logger.Debug).Infof("Inserting chain with %d blocks (#%v - #%v)\n", len(blocks), blocks[0].Number(), blocks[len(blocks)-1].Number())
+ glog.V(logger.Debug).Infof("Inserting chain with %d blocks (#%v - #%v)\n", len(blocks), blocks[0].RawBlock.Number(), blocks[len(blocks)-1].RawBlock.Number())
for len(blocks) != 0 && !pm.quit {
+ // Retrieve the first batch of blocks to insert
max := int(math.Min(float64(len(blocks)), float64(blockProcAmount)))
- _, err := pm.chainman.InsertChain(blocks[:max])
+ raw := make(types.Blocks, 0, max)
+ for _, block := range blocks[:max] {
+ raw = append(raw, block.RawBlock)
+ }
+ // Try to inset the blocks, drop the originating peer if there's an error
+ index, err := pm.chainman.InsertChain(raw)
if err != nil {
glog.V(logger.Warn).Infof("Block insertion failed: %v", err)
+ pm.removePeer(blocks[index].OriginPeer)
pm.downloader.Cancel()
return err
}
@@ -105,7 +113,7 @@ func (pm *ProtocolManager) synchronise(peer *peer) {
case downloader.ErrTimeout, downloader.ErrBadPeer, downloader.ErrInvalidChain, downloader.ErrCrossCheckFailed:
glog.V(logger.Debug).Infof("Removing peer %v: %v", peer.id, err)
- pm.removePeer(peer)
+ pm.removePeer(peer.id)
case downloader.ErrPendingQueue:
glog.V(logger.Debug).Infoln("Synchronisation aborted:", err)