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
}
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))
}
}