forked from cerc-io/plugeth
eth protocol changes
- changed backend interface - using callbacks for blockPool - use rlp stream for lazy decoding - use peer as logger - add id (peer pubkey) to ethProtocol fields - add testPeer to protocol test (temporary)
This commit is contained in:
zelig
parent
0add0c400f
commit
2dd8f41147
@ -82,7 +82,8 @@ func EthProtocol(txPool txPool, chainManager chainManager, blockPool blockPool)
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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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// 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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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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@ -99,6 +100,7 @@ func EthProtocol(eth backend) *p2p.Protocol {
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}
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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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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@ -111,12 +113,20 @@ func runEthProtocol(txPool txPool, chainManager chainManager, blockPool blockPoo
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peer: peer,
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id: (string)(peer.Identity().Pubkey()),
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=======
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=======
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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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>>>>>>> eth protocol changes
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func runEthProtocol(eth backend, peer *p2p.Peer, rw p2p.MsgReadWriter) (err error) {
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self := ðProtocol{
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eth: eth,
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rw: rw,
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peer: peer,
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<<<<<<< HEAD
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>>>>>>> initial commit for eth-p2p integration
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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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err = self.handleStatus()
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if err == nil {
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@ -124,10 +134,14 @@ func runEthProtocol(eth backend, peer *p2p.Peer, rw p2p.MsgReadWriter) (err erro
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for {
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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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self.blockPool.RemovePeer(self.id)
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=======
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>>>>>>> initial commit for eth-p2p integration
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=======
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self.eth.RemovePeer(self.id)
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>>>>>>> eth protocol changes
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break
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}
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}
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@ -166,7 +180,11 @@ func (self *ethProtocol) handle() error {
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return self.rw.EncodeMsg(TxMsg, txsInterface...)
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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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=======
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// TODO: rework using lazy RLP stream
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>>>>>>> eth protocol changes
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var txs []*types.Transaction
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if err := msg.Decode(&txs); err != nil {
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return ProtocolError(ErrDecode, "%v", err)
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@ -192,12 +210,16 @@ func (self *ethProtocol) handle() error {
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case BlockHashesMsg:
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// TODO: redo using lazy decode , this way very inefficient on known chains
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<<<<<<< HEAD
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<<<<<<< HEAD
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=======
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>>>>>>> eth protocol changes
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msgStream := rlp.NewListStream(msg.Payload, uint64(msg.Size))
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var err error
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iter := func() (hash []byte, ok bool) {
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hash, err = msgStream.Bytes()
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if err == nil {
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ok = true
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<<<<<<< HEAD
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}
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return
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}
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@ -218,24 +240,35 @@ func (self *ethProtocol) handle() error {
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fetchMore = self.eth.AddHash(hash, self.peer)
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if !fetchMore {
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break
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=======
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>>>>>>> eth protocol changes
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}
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return
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}
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if fetchMore {
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return self.FetchHashes(blockHashes[len(blockHashes)-1])
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self.eth.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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case GetBlocksMsg:
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<<<<<<< HEAD
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// Limit to max 300 blocks
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>>>>>>> initial commit for eth-p2p integration
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=======
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>>>>>>> eth protocol changes
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var blockHashes [][]byte
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if err := msg.Decode(&blockHashes); 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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max := int(math.Min(float64(len(blockHashes)), blockHashesBatchSize))
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=======
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max := int(math.Min(float64(len(blockHashes)), 300.0))
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>>>>>>> initial commit for eth-p2p integration
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=======
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max := int(math.Min(float64(len(blockHashes)), blockHashesBatchSize))
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>>>>>>> eth protocol changes
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var blocks []interface{}
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for i, hash := range blockHashes {
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if i >= max {
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@ -254,6 +287,9 @@ func (self *ethProtocol) handle() error {
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case BlocksMsg:
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<<<<<<< HEAD
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<<<<<<< HEAD
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=======
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>>>>>>> eth protocol changes
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msgStream := rlp.NewListStream(msg.Payload, uint64(msg.Size))
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for {
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var block *types.Block
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@ -262,6 +298,7 @@ func (self *ethProtocol) handle() error {
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break
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} else {
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return ProtocolError(ErrDecode, "%v", err)
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<<<<<<< HEAD
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}
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}
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self.blockPool.AddBlock(block, self.id)
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@ -281,6 +318,13 @@ func (self *ethProtocol) handle() error {
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}
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}
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>>>>>>> initial commit for eth-p2p integration
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=======
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}
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}
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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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case NewBlockMsg:
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@ -289,11 +333,18 @@ func (self *ethProtocol) handle() 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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=======
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>>>>>>> eth protocol changes
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hash := request.Block.Hash()
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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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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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called := true
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iter := func() (hash []byte, ok bool) {
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if called {
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@ -303,6 +354,7 @@ 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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self.blockPool.AddBlockHashes(iter, self.id)
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self.blockPool.AddBlock(request.Block, self.id)
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=======
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@ -314,6 +366,12 @@ func (self *ethProtocol) handle() error {
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if fetchHashes {
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return self.FetchHashes(request.Block.Hash())
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>>>>>>> initial commit for eth-p2p integration
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=======
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self.eth.AddBlockHashes(iter, self.id)
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if err := self.eth.AddBlock(request.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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default:
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@ -389,6 +447,7 @@ func (self *ethProtocol) handleStatus() error {
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return ProtocolError(ErrProtocolVersionMismatch, "%d (!= %d)", status.ProtocolVersion, ProtocolVersion)
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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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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@ -400,10 +459,16 @@ func (self *ethProtocol) handleStatus() error {
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return self.FetchHashes(status.CurrentBlock)
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}
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>>>>>>> initial commit for eth-p2p integration
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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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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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return nil
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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func (self *ethProtocol) requestBlockHashes(from []byte) error {
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self.peer.Debugf("fetching hashes (%d) %x...\n", blockHashesBatchSize, from[0:4])
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@ -441,3 +506,29 @@ func (self *ethProtocol) FetchHashes(from []byte) error {
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return self.rw.EncodeMsg(GetBlockHashesMsg, from, blockHashesBatchSize)
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}
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>>>>>>> initial commit for eth-p2p integration
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=======
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func (self *ethProtocol) requestBlockHashes(from []byte) error {
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self.peer.Debugf("fetching hashes (%d) %x...\n", blockHashesBatchSize, from[0:4])
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return self.rw.EncodeMsg(GetBlockHashesMsg, from, blockHashesBatchSize)
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}
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func (self *ethProtocol) requestBlocks(hashes [][]byte) error {
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self.peer.Debugf("fetching %v blocks", len(hashes))
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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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self.peer.Errorln(err)
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} else {
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self.peer.Debugln(err)
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}
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return
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}
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>>>>>>> eth protocol changes
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@ -56,18 +56,11 @@ type TestBackend struct {
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getTransactions func() []*types.Transaction
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addTransactions func(txs []*types.Transaction)
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getBlockHashes func(hash []byte, amount uint32) (hashes [][]byte)
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<<<<<<< HEAD
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addBlockHashes func(next func() ([]byte, bool), peerId string)
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getBlock func(hash []byte) *types.Block
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addBlock func(block *types.Block, peerId string) (err error)
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addPeer func(td *big.Int, currentBlock []byte, peerId string, requestHashes func([]byte) error, requestBlocks func([][]byte) error, invalidBlock func(error)) (best bool)
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removePeer func(peerId string)
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=======
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addHash func(hash []byte, peer *p2p.Peer) (more bool)
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getBlock func(hash []byte) *types.Block
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addBlock func(td *big.Int, block *types.Block, peer *p2p.Peer) (fetchHashes bool, err error)
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addPeer func(td *big.Int, currentBlock []byte, peer *p2p.Peer) (fetchHashes bool)
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>>>>>>> initial commit for eth-p2p integration
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status func() (td *big.Int, currentBlock []byte, genesisBlock []byte)
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}
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@ -91,6 +84,7 @@ func (self *TestBackend) GetBlockHashes(hash []byte, amount uint32) (hashes [][]
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return
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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func (self *TestBackend) AddBlockHashes(next func() ([]byte, bool), peerId string) {
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if self.addBlockHashes != nil {
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@ -102,10 +96,18 @@ func (self *TestBackend) AddBlockHashes(next func() ([]byte, bool), peerId strin
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func (self *TestBackend) AddHash(hash []byte, peer *p2p.Peer) (more bool) {
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if self.addHash != nil {
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more = self.addHash(hash, peer)
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=======
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func (self *TestBackend) AddBlockHashes(next func() ([]byte, bool), peerId string) {
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if self.addBlockHashes != nil {
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self.addBlockHashes(next, peerId)
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>>>>>>> eth protocol changes
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}
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return
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}
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<<<<<<< HEAD
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>>>>>>> initial commit for eth-p2p integration
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=======
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>>>>>>> eth protocol changes
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func (self *TestBackend) GetBlock(hash []byte) (block *types.Block) {
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if self.getBlock != nil {
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block = self.getBlock(hash)
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@ -113,6 +115,7 @@ func (self *TestBackend) GetBlock(hash []byte) (block *types.Block) {
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return
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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func (self *TestBackend) AddBlock(block *types.Block, peerId string) (err error) {
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if self.addBlock != nil {
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@ -122,10 +125,16 @@ func (self *TestBackend) AddBlock(td *big.Int, block *types.Block, peer *p2p.Pee
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if self.addBlock != nil {
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fetchHashes, err = self.addBlock(td, block, peer)
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>>>>>>> initial commit for eth-p2p integration
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=======
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func (self *TestBackend) AddBlock(block *types.Block, peerId string) (err error) {
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if self.addBlock != nil {
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err = self.addBlock(block, peerId)
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>>>>>>> eth protocol changes
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}
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return
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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func (self *TestBackend) AddPeer(td *big.Int, currentBlock []byte, peerId string, requestBlockHashes func([]byte) error, requestBlocks func([][]byte) error, invalidBlock func(error)) (best bool) {
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if self.addPeer != nil {
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@ -135,19 +144,30 @@ func (self *TestBackend) AddPeer(td *big.Int, currentBlock []byte, peer *p2p.Pee
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if self.addPeer != nil {
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fetchHashes = self.addPeer(td, currentBlock, peer)
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>>>>>>> initial commit for eth-p2p integration
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=======
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func (self *TestBackend) AddPeer(td *big.Int, currentBlock []byte, peerId string, requestBlockHashes func([]byte) error, requestBlocks func([][]byte) error, invalidBlock func(error)) (best bool) {
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if self.addPeer != nil {
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best = self.addPeer(td, currentBlock, peerId, requestBlockHashes, requestBlocks, invalidBlock)
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>>>>>>> eth protocol changes
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}
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return
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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=======
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>>>>>>> eth protocol changes
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func (self *TestBackend) RemovePeer(peerId string) {
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if self.removePeer != nil {
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self.removePeer(peerId)
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}
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}
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<<<<<<< HEAD
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=======
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>>>>>>> initial commit for eth-p2p integration
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=======
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>>>>>>> eth protocol changes
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func (self *TestBackend) Status() (td *big.Int, currentBlock []byte, genesisBlock []byte) {
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if self.status != nil {
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td, currentBlock, genesisBlock = self.status()
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@ -156,6 +176,9 @@ func (self *TestBackend) Status() (td *big.Int, currentBlock []byte, genesisBloc
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}
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<<<<<<< HEAD
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<<<<<<< HEAD
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=======
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>>>>>>> eth protocol changes
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// TODO: refactor this into p2p/client_identity
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type peerId struct {
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pubkey []byte
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@ -179,19 +202,26 @@ func testPeer() *p2p.Peer {
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}
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func TestErrNoStatusMsg(t *testing.T) {
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<<<<<<< HEAD
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=======
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func TestEth(t *testing.T) {
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>>>>>>> initial commit for eth-p2p integration
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=======
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>>>>>>> eth protocol changes
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quit := make(chan bool)
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rw := &testMsgReadWriter{make(chan p2p.Msg, 10), make(chan p2p.Msg, 10)}
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testBackend := &TestBackend{}
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var err error
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go func() {
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<<<<<<< HEAD
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<<<<<<< HEAD
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err = runEthProtocol(testBackend, testPeer(), rw)
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=======
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err = runEthProtocol(testBackend, nil, rw)
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>>>>>>> initial commit for eth-p2p integration
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=======
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err = runEthProtocol(testBackend, testPeer(), rw)
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>>>>>>> eth protocol changes
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close(quit)
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}()
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statusMsg := p2p.NewMsg(4)
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