Esempio n. 1
0
func (cr *connectionRun) handleMsgFromServer(msg *msgs.Message) error {
	if cr.currentState != cr {
		// probably just draining the queue from the reader after a restart
		return nil
	}
	cr.missingBeats = 0
	switch which := msg.Which(); which {
	case msgs.MESSAGE_HEARTBEAT:
		// do nothing
	case msgs.MESSAGE_CONNECTIONERROR:
		return fmt.Errorf("Error received from %v: \"%s\"", cr.remoteRMId, msg.ConnectionError())
	case msgs.MESSAGE_TOPOLOGYCHANGEREQUEST:
		configCap := msg.TopologyChangeRequest()
		config := configuration.ConfigurationFromCap(&configCap)
		cr.connectionManager.RequestConfigurationChange(config)
	default:
		cr.connectionManager.DispatchMessage(cr.remoteRMId, which, msg)
	}
	return nil
}
Esempio n. 2
0
func (cm *ConnectionManager) DispatchMessage(sender common.RMId, msgType msgs.Message_Which, msg *msgs.Message) {
	d := cm.Dispatchers
	switch msgType {
	case msgs.MESSAGE_TXNSUBMISSION:
		txn := msg.TxnSubmission()
		d.ProposerDispatcher.TxnReceived(sender, &txn)
	case msgs.MESSAGE_SUBMISSIONOUTCOME:
		outcome := msg.SubmissionOutcome()
		txnId := common.MakeTxnId(outcome.Txn().Id())
		connNumber := binary.BigEndian.Uint32(txnId[8:12])
		bootNumber := binary.BigEndian.Uint32(txnId[12:16])
		if conn := cm.GetClient(bootNumber, connNumber); conn == nil {
			// OSS is safe here - it's the default action on receipt of outcome for unknown client.
			paxos.NewOneShotSender(paxos.MakeTxnSubmissionCompleteMsg(txnId), cm, sender)
		} else {
			conn.SubmissionOutcomeReceived(sender, txnId, &outcome)
			return
		}
	case msgs.MESSAGE_SUBMISSIONCOMPLETE:
		tsc := msg.SubmissionComplete()
		d.AcceptorDispatcher.TxnSubmissionCompleteReceived(sender, &tsc)
	case msgs.MESSAGE_SUBMISSIONABORT:
		tsa := msg.SubmissionAbort()
		d.ProposerDispatcher.TxnSubmissionAbortReceived(sender, &tsa)
	case msgs.MESSAGE_ONEATXNVOTES:
		oneATxnVotes := msg.OneATxnVotes()
		d.AcceptorDispatcher.OneATxnVotesReceived(sender, &oneATxnVotes)
	case msgs.MESSAGE_ONEBTXNVOTES:
		oneBTxnVotes := msg.OneBTxnVotes()
		d.ProposerDispatcher.OneBTxnVotesReceived(sender, &oneBTxnVotes)
	case msgs.MESSAGE_TWOATXNVOTES:
		twoATxnVotes := msg.TwoATxnVotes()
		d.AcceptorDispatcher.TwoATxnVotesReceived(sender, &twoATxnVotes)
	case msgs.MESSAGE_TWOBTXNVOTES:
		twoBTxnVotes := msg.TwoBTxnVotes()
		d.ProposerDispatcher.TwoBTxnVotesReceived(sender, &twoBTxnVotes)
	case msgs.MESSAGE_TXNLOCALLYCOMPLETE:
		tlc := msg.TxnLocallyComplete()
		d.AcceptorDispatcher.TxnLocallyCompleteReceived(sender, &tlc)
	case msgs.MESSAGE_TXNGLOBALLYCOMPLETE:
		tgc := msg.TxnGloballyComplete()
		d.ProposerDispatcher.TxnGloballyCompleteReceived(sender, &tgc)
	case msgs.MESSAGE_TOPOLOGYCHANGEREQUEST:
		// do nothing - we've just sent it to ourselves.
	case msgs.MESSAGE_MIGRATION:
		migration := msg.Migration()
		cm.Transmogrifier.MigrationReceived(sender, &migration)
	case msgs.MESSAGE_MIGRATIONCOMPLETE:
		migrationComplete := msg.MigrationComplete()
		cm.Transmogrifier.MigrationCompleteReceived(sender, &migrationComplete)
	default:
		panic(fmt.Sprintf("Unexpected message received from %v (%v)", sender, msgType))
	}
}