The core protocol of WoopChain
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woop/consensus/threshold.go

76 lines
2.4 KiB

package consensus
import (
"encoding/binary"
msg_pb "github.com/harmony-one/harmony/api/proto/message"
"github.com/harmony-one/harmony/consensus/quorum"
nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
"github.com/harmony-one/harmony/internal/utils"
"github.com/harmony-one/harmony/p2p/host"
)
func (consensus *Consensus) didReachPrepareQuorum() error {
logger := utils.Logger()
logger.Debug().Msg("[OnPrepare] Received Enough Prepare Signatures")
// Construct and broadcast prepared message
network, err := consensus.construct(msg_pb.MessageType_PREPARED, nil)
if err != nil {
consensus.getLogger().Err(err).
Str("message-type", msg_pb.MessageType_PREPARED.String()).
Msg("failed constructing message")
return err
}
msgToSend, FBFTMsg, aggSig :=
network.Bytes,
network.FBFTMsg,
network.OptionalAggregateSignature
consensus.aggregatedPrepareSig = aggSig
consensus.FBFTLog.AddMessage(FBFTMsg)
// Leader add commit phase signature
blockNumHash := make([]byte, 8)
binary.LittleEndian.PutUint64(blockNumHash, consensus.blockNum)
commitPayload := append(blockNumHash, consensus.blockHash[:]...)
// so by this point, everyone has committed to the blockhash of this block
// in prepare and so this is the actual block.
consensus.Decider.SubmitVote(
quorum.Commit,
consensus.PubKey,
consensus.priKey.SignHash(commitPayload),
consensus.block[:],
)
if err := consensus.commitBitmap.SetKey(consensus.PubKey, true); err != nil {
consensus.getLogger().Debug().Msg("[OnPrepare] Leader commit bitmap set failed")
return err
}
if err := consensus.msgSender.SendWithRetry(
consensus.blockNum,
msg_pb.MessageType_PREPARED, []nodeconfig.GroupID{
nodeconfig.NewGroupIDByShardID(nodeconfig.ShardID(consensus.ShardID)),
},
host.ConstructP2pMessage(byte(17), msgToSend),
); err != nil {
consensus.getLogger().Warn().Msg("[OnPrepare] Cannot send prepared message")
} else {
consensus.getLogger().Debug().
Hex("blockHash", consensus.blockHash[:]).
Uint64("blockNum", consensus.blockNum).
Msg("[OnPrepare] Sent Prepared Message!!")
}
consensus.msgSender.StopRetry(msg_pb.MessageType_ANNOUNCE)
// Stop retry committed msg of last consensus
consensus.msgSender.StopRetry(msg_pb.MessageType_COMMITTED)
consensus.getLogger().Debug().
Str("From", consensus.phase.String()).
Str("To", FBFTCommit.String()).
Msg("[OnPrepare] Switching phase")
return nil
}