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dqpbft.go
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dqpbft.go
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package dqpbft
import (
"github.com/gogo/protobuf/proto"
"github.com/ibalajiarun/go-consensus/peer"
"github.com/ibalajiarun/go-consensus/peer/peerpb"
"github.com/ibalajiarun/go-consensus/pkg/command/commandpb"
"github.com/ibalajiarun/go-consensus/pkg/logger"
"github.com/ibalajiarun/go-consensus/pkg/worker"
pb "github.com/ibalajiarun/go-consensus/protocols/dqpbft/dqpbftpb"
"github.com/ibalajiarun/go-consensus/utils"
)
type DQPBFT struct {
id peerpb.PeerID
peers []peerpb.PeerID
f int
log map[pb.InstanceID]*instance
view pb.View
index pb.Index
nextDeliverIndex map[peerpb.PeerID]pb.Index
olog map[pb.Index]*oinstance
oindex pb.Index
oview pb.View
nextODeliverIndex pb.Index
msgs []peerpb.Message
toDeliver []peer.ExecPacket
cReqBuffer []pb.InstanceID
oBatchSize uint32
oBatchTimeout uint32
timers map[peer.TickingTimer]struct{}
logger logger.Logger
certifier utils.Certifier
signDispatcher *worker.Dispatcher
callbackC chan func()
}
func NewDQPBFT(cfg *peer.LocalConfig) *DQPBFT {
log := make(map[pb.InstanceID]*instance, len(cfg.Peers)*1024)
olog := make(map[pb.Index]*oinstance, len(cfg.Peers)*1024)
d := &DQPBFT{
id: cfg.ID,
peers: cfg.Peers,
log: log,
view: pb.View(cfg.ID),
index: 0,
nextDeliverIndex: make(map[peerpb.PeerID]pb.Index, len(cfg.Peers)),
olog: olog,
oview: pb.View(cfg.LeaderID),
oindex: 0,
nextODeliverIndex: 0,
logger: cfg.Logger,
timers: make(map[peer.TickingTimer]struct{}),
f: int(cfg.MaxFailures),
certifier: utils.NewSWCertifier(),
oBatchSize: cfg.DqOBatchSize,
oBatchTimeout: cfg.DqOBatchTimeout,
}
d.initTimers()
if _, ok := cfg.Workers["mac_sign"]; !ok {
d.logger.Panicf("Worker count for mac_sign missing.")
}
if _, ok := cfg.WorkersQueueSizes["mac_sign"]; !ok {
d.logger.Panicf("Worker queue size for mac_sign missing.")
}
d.callbackC = make(chan func(), cfg.WorkersQueueSizes["mac_sign"])
d.signDispatcher = worker.NewDispatcher(
int(cfg.WorkersQueueSizes["mac_sign"]),
int(cfg.Workers["mac_sign"]),
d.callbackC,
)
d.signDispatcher.Run()
return d
}
func (d *DQPBFT) initTimers() {
cReqTimer := peer.MakeTickingTimer(int(d.oBatchTimeout), func() {
if d.isPrimaryAtView(d.id, d.oview) {
d.sendCRequest()
}
})
d.registerInfiniteTimer(cReqTimer)
}
func (s *DQPBFT) registerInfiniteTimer(t peer.TickingTimer) {
s.timers[t] = struct{}{}
t.Instrument(func() {
t.Reset()
})
t.Reset()
}
func (d *DQPBFT) AsyncCallback() {
for {
select {
case cb := <-d.callbackC:
cb()
default:
return
}
}
}
func (d *DQPBFT) Callback(peer.ExecCallback) {
}
func (d *DQPBFT) MakeReady() peer.Ready {
return peer.Ready{
Messages: d.msgs,
OrderedCommands: d.toDeliver,
}
}
func (d *DQPBFT) Request(cmd *commandpb.Command) {
d.onRequest(cmd)
}
func (d *DQPBFT) Step(mm peerpb.Message) {
m := &pb.DQPBFTMessage{}
if err := proto.Unmarshal(mm.Content, m); err != nil {
panic(err)
}
if !d.certifier.VerifyCertificate(mm.Content, 0, mm.Certificate) {
panic("Invalid certificate")
}
d.logger.Debugf("Received from %v: %v", mm.From, m)
switch t := m.Type.(type) {
case *pb.DQPBFTMessage_Agreement:
d.stepNormal(t.Agreement, mm.From)
case *pb.DQPBFTMessage_OAgreement:
d.stepONormal(t.OAgreement, mm.From)
default:
d.logger.Panicf("unexpected Message type: %v", m.Type)
}
}
func (d *DQPBFT) stepNormal(m *pb.AgreementMessage, from peerpb.PeerID) {
d.logger.Debugf("Replica %d ====[%v]====>>> Replica %d\n", from, m.Type, d.id)
switch m.Type {
case pb.AgreementMessage_PrePrepare:
d.onPrePrepare(m, from)
case pb.AgreementMessage_Prepare:
d.onPrepare(m, from)
case pb.AgreementMessage_Commit:
d.onCommit(m, from)
default:
d.logger.Panicf("unexpected Message type: %v", m.Type)
}
}
func (d *DQPBFT) stepONormal(m *pb.OAgreementMessage, from peerpb.PeerID) {
d.logger.Debugf("Replica %d ====[%v]====>>> Replica %d\n", from, m.Type, d.id)
switch m.Type {
case pb.OAgreementMessage_OPrePrepare:
d.onOPrePrepare(m, from)
case pb.OAgreementMessage_OPrepare:
d.onOPrepare(m, from)
case pb.OAgreementMessage_OCommit:
d.onOCommit(m, from)
default:
d.logger.Panicf("unexpected Message type: %v", m.Type)
}
}
func (d *DQPBFT) Tick() {
for t := range d.timers {
t.Tick()
}
}
var _ peer.Protocol = (*DQPBFT)(nil)
func (s *DQPBFT) hasExecuted(insId pb.InstanceID) bool {
return s.hasStatus(insId, pb.InstanceState_Executed)
}
func (s *DQPBFT) hasStatus(insId pb.InstanceID, status pb.InstanceState_Status) bool {
if inst, ok := s.log[insId]; ok {
return inst.is.Status == status
}
return false
}