func NewOBCExecutor(config *viper.Viper, orderer Orderer, stack statetransfer.PartialStack) (obcex *obcExecutor) {
var err error
obcex = &obcExecutor{}
queueSize := config.GetInt("executor.queuesize")
if queueSize <= 0 {
panic("Queue size must be positive")
}
obcex.executionQueue = make(chan *transaction, queueSize)
obcex.syncTargets = make(chan *syncTarget)
obcex.completeSync = make(chan *syncTarget)
obcex.threadIdle = make(chan struct{})
obcex.threadExit = make(chan struct{})
obcex.orderer = orderer
obcex.executorStack = stack
obcex.id, _, err = stack.GetNetworkHandles()
if nil != err {
logger.Error("Could not resolve our own PeerID, assigning dummy")
obcex.id = &pb.PeerID{"Dummy"}
}
logger.Info("Executor for %v using queue size of %d", obcex.id, queueSize)
obcex.sts = statetransfer.NewStateTransferState(config, stack)
listener := struct{ statetransfer.ProtoListener }{}
listener.CompletedImpl = obcex.stateTransferCompleted
obcex.sts.RegisterListener(&listener)
go obcex.queueThread()
return
}
func newPbftCore(id uint64, config *viper.Viper, consumer innerStack, ledger consensus.LedgerStack) *pbftCore {
var err error
instance := &pbftCore{}
instance.id = id
instance.consumer = consumer
instance.ledger = ledger
instance.closed = make(chan bool)
instance.notifyCommit = make(chan bool, 1)
instance.notifyExec = sync.NewCond(&instance.internalLock)
instance.N = config.GetInt("general.N")
instance.f = config.GetInt("general.f")
if instance.f*3+1 > instance.N {
panic(fmt.Sprintf("need at least %d enough replicas to tolerate %d byzantine faults, but only %d replicas configured", instance.f*3+1, instance.f, instance.N))
}
instance.K = uint64(config.GetInt("general.K"))
instance.byzantine = config.GetBool("general.byzantine")
instance.requestTimeout, err = time.ParseDuration(config.GetString("general.timeout.request"))
if err != nil {
panic(fmt.Errorf("Cannot parse request timeout: %s", err))
}
instance.newViewTimeout, err = time.ParseDuration(config.GetString("general.timeout.viewchange"))
if err != nil {
panic(fmt.Errorf("Cannot parse new view timeout: %s", err))
}
instance.activeView = true
instance.L = 2 * instance.K // log size
instance.replicaCount = instance.N
// init the logs
instance.certStore = make(map[msgID]*msgCert)
instance.reqStore = make(map[string]*Request)
instance.checkpointStore = make(map[Checkpoint]bool)
instance.chkpts = make(map[uint64]*blockState)
instance.viewChangeStore = make(map[vcidx]*ViewChange)
instance.pset = make(map[uint64]*ViewChange_PQ)
instance.qset = make(map[qidx]*ViewChange_PQ)
instance.newViewStore = make(map[uint64]*NewView)
// initialize state transfer
instance.hChkpts = make(map[uint64]uint64)
defaultPeerIDs := make([]*protos.PeerID, instance.replicaCount-1)
if instance.replicaCount > 1 {
// For some tests, only 1 replica will be present, and defaultPeerIDs makes no sense
for i := uint64(0); i < uint64(instance.replicaCount); i++ {
handle, err := getValidatorHandle(i)
if err != nil {
panic(fmt.Errorf("Cannot retrieve handle for peer which must exist : %s", err))
}
if i < instance.id {
logger.Debug("Replica %d assigning %v to index %d for replicaCount %d and id %d", instance.id, handle, i, instance.replicaCount, instance.id)
defaultPeerIDs[i] = handle
} else if i > instance.id {
logger.Debug("Replica %d assigning %v to index %d for replicaCount %d and id %d", instance.id, handle, i-1, instance.replicaCount, instance.id)
defaultPeerIDs[i-1] = handle
} else {
// This is our ID, do not add it to the list of default peers
}
}
} else {
logger.Debug("Replica %d not initializing defaultPeerIDs, as replicaCount is %d", instance.id, instance.replicaCount)
}
if myHandle, err := getValidatorHandle(instance.id); err != nil {
panic("Could not retrieve own handle")
} else {
instance.sts = statetransfer.NewStateTransferState(myHandle, config, ledger, defaultPeerIDs)
}
listener := struct{ statetransfer.ProtoListener }{}
listener.CompletedImpl = instance.stateTransferCompleted
instance.sts.RegisterListener(&listener)
// load genesis checkpoint
genesisBlock, err := instance.ledger.GetBlock(0)
if err != nil {
panic(fmt.Errorf("Cannot load genesis block: %s", err))
}
genesisHash, err := ledger.HashBlock(genesisBlock)
if err != nil {
panic(fmt.Errorf("Cannot hash genesis block: %s", err))
}
instance.chkpts[0] = &blockState{
blockNumber: 0,
blockHash: base64.StdEncoding.EncodeToString(genesisHash),
}
// create non-running timer XXX ugly
instance.newViewTimer = time.NewTimer(100 * time.Hour)
instance.newViewTimer.Stop()
instance.timerResetCount = 1
instance.lastNewViewTimeout = instance.newViewTimeout
instance.outstandingReqs = make(map[string]*Request)
instance.missingReqs = make(map[string]bool)
go instance.timerHander()
go instance.executeRoutine()
return instance
}
