protocol
- new interface explicit backend components txPool, chainManager, blockPool - added protoErrorDisconnect for blockpool callback (FIXME: handling peer disconnects)
This commit is contained in:
zelig
parent
5e4d77b2b8
commit
4dfce4624d
@ -20,7 +20,7 @@ type ethProtocol struct {
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peer *p2p.Peer
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id string
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rw p2p.MsgReadWriter
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}
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}
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// backend is the interface the ethereum protocol backend should implement
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// used as an argument to EthProtocol
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@ -68,6 +68,7 @@ type newBlockMsgData struct {
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type getBlockHashesMsgData struct {
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Hash []byte
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<<<<<<< HEAD
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<<<<<<< HEAD
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Amount uint64
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}
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@ -79,23 +80,35 @@ func EthProtocol(txPool txPool, chainManager chainManager, blockPool blockPool)
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return p2p.Protocol{
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=======
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Amount uint32
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=======
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Amount uint64
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>>>>>>> protocol
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}
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// main entrypoint, wrappers starting a server running the eth protocol
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// use this constructor to attach the protocol ("class") to server caps
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// the Dev p2p layer then runs the protocol instance on each peer
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<<<<<<< HEAD
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func EthProtocol(eth backend) *p2p.Protocol {
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return &p2p.Protocol{
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>>>>>>> initial commit for eth-p2p integration
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=======
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func EthProtocol(txPool txPool, chainManager chainManager, blockPool blockPool) p2p.Protocol {
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return p2p.Protocol{
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>>>>>>> protocol
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Name: "eth",
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Version: ProtocolVersion,
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Length: ProtocolLength,
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Run: func(peer *p2p.Peer, rw p2p.MsgReadWriter) error {
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<<<<<<< HEAD
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<<<<<<< HEAD
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return runEthProtocol(txPool, chainManager, blockPool, peer, rw)
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=======
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return runEthProtocol(eth, peer, rw)
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>>>>>>> initial commit for eth-p2p integration
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=======
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return runEthProtocol(txPool, chainManager, blockPool, peer, rw)
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>>>>>>> protocol
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},
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}
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}
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@ -105,6 +118,7 @@ func EthProtocol(eth backend) *p2p.Protocol {
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// the main loop that handles incoming messages
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// note RemovePeer in the post-disconnect hook
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func runEthProtocol(txPool txPool, chainManager chainManager, blockPool blockPool, peer *p2p.Peer, rw p2p.MsgReadWriter) (err error) {
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<<<<<<< HEAD
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self := ðProtocol{
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txPool: txPool,
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chainManager: chainManager,
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@ -127,6 +141,15 @@ func runEthProtocol(eth backend, peer *p2p.Peer, rw p2p.MsgReadWriter) (err erro
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=======
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id: (string)(peer.Identity().Pubkey()),
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>>>>>>> eth protocol changes
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=======
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self := ðProtocol{
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txPool: txPool,
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chainManager: chainManager,
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blockPool: blockPool,
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rw: rw,
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peer: peer,
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id: (string)(peer.Identity().Pubkey()),
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>>>>>>> protocol
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}
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err = self.handleStatus()
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if err == nil {
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@ -135,6 +158,7 @@ func runEthProtocol(eth backend, peer *p2p.Peer, rw p2p.MsgReadWriter) (err erro
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err = self.handle()
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if err != nil {
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<<<<<<< HEAD
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<<<<<<< HEAD
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<<<<<<< HEAD
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self.blockPool.RemovePeer(self.id)
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=======
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@ -142,6 +166,9 @@ func runEthProtocol(eth backend, peer *p2p.Peer, rw p2p.MsgReadWriter) (err erro
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=======
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self.eth.RemovePeer(self.id)
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>>>>>>> eth protocol changes
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=======
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self.blockPool.RemovePeer(self.id)
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>>>>>>> protocol
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break
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}
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}
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@ -166,6 +193,7 @@ func (self *ethProtocol) handle() error {
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case StatusMsg:
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return ProtocolError(ErrExtraStatusMsg, "")
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<<<<<<< HEAD
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<<<<<<< HEAD
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case TxMsg:
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// TODO: rework using lazy RLP stream
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@ -179,6 +207,8 @@ func (self *ethProtocol) handle() error {
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}
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return self.rw.EncodeMsg(TxMsg, txsInterface...)
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=======
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>>>>>>> protocol
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case TxMsg:
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<<<<<<< HEAD
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>>>>>>> initial commit for eth-p2p integration
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@ -189,22 +219,30 @@ func (self *ethProtocol) handle() error {
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if err := msg.Decode(&txs); err != nil {
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return ProtocolError(ErrDecode, "%v", err)
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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self.txPool.AddTransactions(txs)
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=======
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self.eth.AddTransactions(txs)
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>>>>>>> initial commit for eth-p2p integration
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=======
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self.txPool.AddTransactions(txs)
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>>>>>>> protocol
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case GetBlockHashesMsg:
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var request getBlockHashesMsgData
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if err := msg.Decode(&request); err != nil {
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return ProtocolError(ErrDecode, "%v", err)
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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hashes := self.chainManager.GetBlockHashesFromHash(request.Hash, request.Amount)
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=======
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hashes := self.eth.GetBlockHashes(request.Hash, request.Amount)
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>>>>>>> initial commit for eth-p2p integration
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=======
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hashes := self.chainManager.GetBlockHashesFromHash(request.Hash, request.Amount)
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>>>>>>> protocol
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return self.rw.EncodeMsg(BlockHashesMsg, ethutil.ByteSliceToInterface(hashes)...)
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case BlockHashesMsg:
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@ -245,7 +283,7 @@ func (self *ethProtocol) handle() error {
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}
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return
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}
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self.eth.AddBlockHashes(iter, self.id)
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self.blockPool.AddBlockHashes(iter, self.id)
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if err != nil && err != rlp.EOL {
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return ProtocolError(ErrDecode, "%v", err)
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}
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@ -274,11 +312,15 @@ func (self *ethProtocol) handle() error {
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if i >= max {
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break
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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block := self.chainManager.GetBlock(hash)
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=======
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block := self.eth.GetBlock(hash)
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>>>>>>> initial commit for eth-p2p integration
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=======
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block := self.chainManager.GetBlock(hash)
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>>>>>>> protocol
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if block != nil {
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blocks = append(blocks, block.Value().Raw())
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}
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@ -321,10 +363,14 @@ func (self *ethProtocol) handle() error {
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=======
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}
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}
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<<<<<<< HEAD
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if err := self.eth.AddBlock(block, self.id); err != nil {
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return ProtocolError(ErrInvalidBlock, "%v", err)
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}
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>>>>>>> eth protocol changes
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=======
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self.blockPool.AddBlock(block, self.id)
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>>>>>>> protocol
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}
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case NewBlockMsg:
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@ -340,11 +386,15 @@ func (self *ethProtocol) handle() error {
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// to simplify backend interface adding a new block
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// uses AddPeer followed by AddHashes, AddBlock only if peer is the best peer
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// (or selected as new best peer)
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<<<<<<< HEAD
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<<<<<<< HEAD
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if self.blockPool.AddPeer(request.TD, hash, self.id, self.requestBlockHashes, self.requestBlocks, self.protoErrorDisconnect) {
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=======
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if self.eth.AddPeer(request.TD, hash, self.id, self.requestBlockHashes, self.requestBlocks, self.invalidBlock) {
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>>>>>>> eth protocol changes
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=======
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if self.blockPool.AddPeer(request.TD, hash, self.id, self.requestBlockHashes, self.requestBlocks, self.protoErrorDisconnect) {
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>>>>>>> protocol
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called := true
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iter := func() (hash []byte, ok bool) {
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if called {
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@ -354,6 +404,7 @@ func (self *ethProtocol) handle() error {
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return
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}
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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self.blockPool.AddBlockHashes(iter, self.id)
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self.blockPool.AddBlock(request.Block, self.id)
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@ -372,6 +423,10 @@ func (self *ethProtocol) handle() error {
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return ProtocolError(ErrInvalidBlock, "%v", err)
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}
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>>>>>>> eth protocol changes
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=======
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self.blockPool.AddBlockHashes(iter, self.id)
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self.blockPool.AddBlock(request.Block, self.id)
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>>>>>>> protocol
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}
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default:
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@ -389,11 +444,15 @@ type statusMsgData struct {
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}
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func (self *ethProtocol) statusMsg() p2p.Msg {
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<<<<<<< HEAD
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<<<<<<< HEAD
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td, currentBlock, genesisBlock := self.chainManager.Status()
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=======
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td, currentBlock, genesisBlock := self.eth.Status()
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>>>>>>> initial commit for eth-p2p integration
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=======
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td, currentBlock, genesisBlock := self.chainManager.Status()
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>>>>>>> protocol
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return p2p.NewMsg(StatusMsg,
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uint32(ProtocolVersion),
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@ -429,11 +488,15 @@ func (self *ethProtocol) handleStatus() error {
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return ProtocolError(ErrDecode, "%v", err)
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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_, _, genesisBlock := self.chainManager.Status()
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=======
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_, _, genesisBlock := self.eth.Status()
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>>>>>>> initial commit for eth-p2p integration
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=======
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_, _, genesisBlock := self.chainManager.Status()
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>>>>>>> protocol
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if bytes.Compare(status.GenesisBlock, genesisBlock) != 0 {
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return ProtocolError(ErrGenesisBlockMismatch, "%x (!= %x)", status.GenesisBlock, genesisBlock)
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@ -462,8 +525,12 @@ func (self *ethProtocol) handleStatus() error {
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=======
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self.peer.Infof("Peer is [eth] capable (%d/%d). TD = %v ~ %x", status.ProtocolVersion, status.NetworkId, status.CurrentBlock)
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<<<<<<< HEAD
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self.eth.AddPeer(status.TD, status.CurrentBlock, self.id, self.requestBlockHashes, self.requestBlocks, self.invalidBlock)
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>>>>>>> eth protocol changes
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=======
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self.blockPool.AddPeer(status.TD, status.CurrentBlock, self.id, self.requestBlockHashes, self.requestBlocks, self.protoErrorDisconnect)
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>>>>>>> protocol
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return nil
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}
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@ -517,11 +584,6 @@ func (self *ethProtocol) requestBlocks(hashes [][]byte) error {
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return self.rw.EncodeMsg(GetBlocksMsg, ethutil.ByteSliceToInterface(hashes))
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}
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func (self *ethProtocol) invalidBlock(err error) {
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ProtocolError(ErrInvalidBlock, "%v", err)
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self.peer.Disconnect(p2p.DiscSubprotocolError)
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}
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func (self *ethProtocol) protoError(code int, format string, params ...interface{}) (err *protocolError) {
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err = ProtocolError(code, format, params...)
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if err.Fatal() {
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@ -531,4 +593,18 @@ func (self *ethProtocol) protoError(code int, format string, params ...interface
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}
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return
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}
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<<<<<<< HEAD
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>>>>>>> eth protocol changes
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=======
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func (self *ethProtocol) protoErrorDisconnect(code int, format string, params ...interface{}) {
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err := ProtocolError(code, format, params...)
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if err.Fatal() {
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self.peer.Errorln(err)
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// disconnect
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} else {
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self.peer.Debugln(err)
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}
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}
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>>>>>>> protocol
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