func (s *Server) generateViewSequenceWithConsensus(associatedView *view.View, seq ViewSeq) {
assertOnlyUpdatedViews(associatedView, seq)
if associatedView.GetProcessPosition(s.thisProcess) == CONSENSUS_LEADER_PROCESS_POSITION {
consensus.Propose(associatedView, s.thisProcess, &seq)
}
log.Println("Waiting for consensus resolution")
value := <-consensus.GetConsensusResultChan(associatedView)
// get startReconfigurationTime to compute reconfiguration duration
//if startReconfigurationTime.IsZero() || startReconfigurationTime.Sub(time.Now()) > 20*time.Second {
//startReconfigurationTime = consensus.GetConsensusStartTime(associatedView)
//log.Println("starttime :", startReconfigurationTime)
//}
result, ok := value.(*ViewSeq)
if !ok {
log.Fatalf("FATAL: consensus on generateViewSequenceWithConsensus got %T %v\n", value, value)
}
log.Println("Consensus result received")
s.generatedViewSeqChan <- generatedViewSeq{
AssociatedView: associatedView,
ViewSeq: *result,
}
}
// getNextProposalNumber to be used by this process. This function is a stage of the Propose funcion.
func getNextProposalNumber(associatedView *view.View, thisProcess view.Process) (proposalNumber int) {
if associatedView.NumberOfMembers() == 0 {
log.Fatalln("associatedView is empty")
}
thisProcessPosition := associatedView.GetProcessPosition(thisProcess)
lastProposalNumber, err := getLastProposalNumber(associatedView.NumberOfUpdates())
if err != nil {
proposalNumber = associatedView.NumberOfMembers() + thisProcessPosition
} else {
proposalNumber = (lastProposalNumber - (lastProposalNumber % associatedView.NumberOfMembers()) + associatedView.NumberOfMembers()) + thisProcessPosition
}
saveProposalNumberOnStorage(associatedView.NumberOfUpdates(), proposalNumber)
return
}