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eth: drop blocks with low TD

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This commit is contained in:
obscuren 2015-04-19 13:31:37 +02:00
parent 6e1aa91aaf
commit 3d497be9bd
2 changed files with 7 additions and 5 deletions
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6
eth/handler.go
View File

@ -36,6 +36,7 @@ pm.chainman.InsertChain(blocks)
import (
"fmt"
"math/big"
"sync"
"github.com/ethereum/go-ethereum/common"
@ -273,12 +274,11 @@ func (self *ProtocolManager) handleMsg(p *peer) error {
if self.chainman.HasBlock(hash) {
break
}
/* XXX unsure about this
/* XXX unsure about this */
if self.chainman.Td().Cmp(request.TD) > 0 && new(big.Int).Add(request.Block.Number(), big.NewInt(7)).Cmp(self.chainman.CurrentBlock().Number()) < 0 {
glog.V(logger.Debug).Infoln("dropped block", request.Block.Number(), "due to low TD", request.TD)
glog.V(logger.Debug).Infof("[%s] dropped block %v due to low TD %v\n", p.id, request.Block.Number(), request.TD)
break
}
*/
// Attempt to insert the newly received by checking if the parent exists.
// if the parent exists we process the block and propagate to our peers

6
eth/peer.go
View File

@ -6,6 +6,8 @@ import (
"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"
"github.com/ethereum/go-ethereum/p2p"
"gopkg.in/fatih/set.v0"
)
@ -85,12 +87,12 @@ func (p *peer) sendNewBlock(block *types.Block) error {
}
func (p *peer) requestHashes(from common.Hash) error {
p.Debugf("fetching hashes (%d) %x...\n", maxHashes, from[0:4])
glog.V(logger.Debug).Infof("[%s] fetching hashes (%d) %x...\n", p.id, maxHashes, from[:4])
return p2p.Send(p.rw, GetBlockHashesMsg, getBlockHashesMsgData{from, maxHashes})
}
func (p *peer) requestBlocks(hashes []common.Hash) error {
p.Debugf("fetching %v blocks", len(hashes))
glog.V(logger.Debug).Infof("[%s] fetching %v blocks\n", p.id, len(hashes))
return p2p.Send(p.rw, GetBlocksMsg, hashes)
}