This commit is contained in:
obscuren
2014-09-24 11:41:57 +02:00
parent 57dc435f9b
commit ba43364f36
3 changed files with 153 additions and 44 deletions

95
peer.go
View File

@ -131,6 +131,7 @@ type Peer struct {
// Last received pong message
lastPong int64
lastBlockReceived time.Time
LastHashReceived time.Time
host []byte
port uint16
@ -176,6 +177,7 @@ func NewPeer(conn net.Conn, ethereum *Ethereum, inbound bool) *Peer {
caps: ethereum.ServerCaps(),
version: ethereum.ClientIdentity().String(),
protocolCaps: ethutil.NewValue(nil),
td: big.NewInt(0),
}
}
@ -191,6 +193,7 @@ func NewOutboundPeer(addr string, ethereum *Ethereum, caps Caps) *Peer {
caps: caps,
version: ethereum.ClientIdentity().String(),
protocolCaps: ethutil.NewValue(nil),
td: big.NewInt(0),
}
// Set up the connection in another goroutine so we don't block the main thread
@ -505,6 +508,9 @@ func (p *Peer) HandleInbound() {
for it.Next() {
hash := it.Value().Bytes()
p.lastReceivedHash = hash
p.LastHashReceived = time.Now()
if blockPool.HasCommonHash(hash) {
foundCommonHash = true
@ -512,15 +518,16 @@ func (p *Peer) HandleInbound() {
}
blockPool.AddHash(hash)
p.lastReceivedHash = hash
p.lastBlockReceived = time.Now()
}
if foundCommonHash || msg.Data.Len() == 0 {
p.FetchBlocks()
} else {
/*
if foundCommonHash || msg.Data.Len() == 0 {
p.FetchBlocks()
} else {
p.FetchHashes()
}
*/
if !foundCommonHash && msg.Data.Len() != 0 {
p.FetchHashes()
}
@ -539,19 +546,21 @@ func (p *Peer) HandleInbound() {
p.lastBlockReceived = time.Now()
}
var err error
blockPool.CheckLinkAndProcess(func(block *ethchain.Block) {
err = p.ethereum.StateManager().Process(block, false)
})
/*
var err error
blockPool.CheckLinkAndProcess(func(block *ethchain.Block) {
err = p.ethereum.StateManager().Process(block, false)
})
if err != nil {
peerlogger.Infoln(err)
} else {
// Don't trigger if there's just one block.
if blockPool.Len() != 0 && msg.Data.Len() > 1 {
p.FetchBlocks()
if err != nil {
peerlogger.Infoln(err)
} else {
// Don't trigger if there's just one block.
if blockPool.Len() != 0 && msg.Data.Len() > 1 {
p.FetchBlocks()
}
}
}
*/
}
}
}
@ -560,10 +569,7 @@ func (p *Peer) HandleInbound() {
p.Stop()
}
func (self *Peer) FetchBlocks() {
blockPool := self.ethereum.blockPool
hashes := blockPool.Take(100, self)
func (self *Peer) FetchBlocks(hashes [][]byte) {
if len(hashes) > 0 {
self.QueueMessage(ethwire.NewMessage(ethwire.MsgGetBlocksTy, ethutil.ByteSliceToInterface(hashes)))
}
@ -572,7 +578,7 @@ func (self *Peer) FetchBlocks() {
func (self *Peer) FetchHashes() {
blockPool := self.ethereum.blockPool
if self.td.Cmp(blockPool.td) >= 0 {
if self.td.Cmp(self.ethereum.HighestTDPeer()) >= 0 {
blockPool.td = self.td
if !blockPool.HasLatestHash() {
@ -581,6 +587,10 @@ func (self *Peer) FetchHashes() {
}
}
func (self *Peer) FetchingHashes() bool {
return time.Since(self.LastHashReceived) < 5*time.Second
}
// General update method
func (self *Peer) update() {
serviceTimer := time.NewTicker(5 * time.Second)
@ -589,11 +599,22 @@ out:
for {
select {
case <-serviceTimer.C:
since := time.Since(self.lastBlockReceived)
if since > 10*time.Second && self.ethereum.blockPool.Len() != 0 && self.IsCap("eth") {
self.FetchHashes()
} else if since > 5*time.Second {
self.catchingUp = false
if self.IsCap("eth") {
var (
sinceBlock = time.Since(self.lastBlockReceived)
sinceHash = time.Since(self.LastHashReceived)
)
if sinceBlock > 5*time.Second && sinceHash > 5*time.Second {
self.catchingUp = false
}
if sinceHash > 10*time.Second && self.ethereum.blockPool.Len() != 0 {
// XXX While this is completely and utterly incorrect, in order to do anything on the test net is to do it this way
// Assume that when fetching hashes timeouts, we are done.
//self.FetchHashes()
//self.FetchBlocks()
}
}
case <-self.quit:
break out
@ -761,6 +782,14 @@ func (p *Peer) handleHandshake(msg *ethwire.Msg) {
return
}
// Self connect detection
pubkey := p.ethereum.KeyManager().PublicKey()
if bytes.Compare(pubkey[1:], pub) == 0 {
p.Stop()
return
}
usedPub := 0
// This peer is already added to the peerlist so we expect to find a double pubkey at least once
eachPeer(p.ethereum.Peers(), func(peer *Peer, e *list.Element) {
@ -779,16 +808,8 @@ func (p *Peer) handleHandshake(msg *ethwire.Msg) {
// If this is an inbound connection send an ack back
if p.inbound {
p.port = uint16(port)
// Self connect detection
pubkey := p.ethereum.KeyManager().PublicKey()
if bytes.Compare(pubkey, p.pubkey) == 0 {
p.Stop()
return
}
}
p.SetVersion(clientId)
p.versionKnown = true