func (w *watcher) LogProposal(p protocol.ProposalMsg) error {
w.mutex.Lock()
defer w.mutex.Unlock()
msg := w.factory.CreateLogEntry(p.GetTxnid(), p.GetOpCode(), p.GetKey(), p.GetContent())
w.pendings[common.Txnid(p.GetTxnid())] = msg
handle, ok := w.pendingReqs[p.GetReqId()]
if ok {
delete(w.pendingReqs, p.GetReqId())
w.loggedReqs[common.Txnid(p.GetTxnid())] = handle
}
return nil
}
//
// Callback when a new proposal arrives
//
func (s *Server) UpdateStateOnNewProposal(proposal protocol.ProposalMsg) {
fid := proposal.GetFid()
reqId := proposal.GetReqId()
txnid := proposal.GetTxnid()
// If this host is the one that sends the request to the leader
if fid == s.handler.GetFollowerId() {
s.state.mutex.Lock()
defer s.state.mutex.Unlock()
// look up the request handle from the pending list and
// move it to the proposed list
handle, ok := s.state.pendings[reqId]
if ok {
delete(s.state.pendings, reqId)
s.state.proposals[common.Txnid(txnid)] = handle
}
}
}
//
// Update the request upon new proposal.
//
func (c *Coordinator) updateRequestOnNewProposal(proposal protocol.ProposalMsg) {
fid := proposal.GetFid()
reqId := proposal.GetReqId()
txnid := proposal.GetTxnid()
logging.Debugf("Coorindator.updateRequestOnNewProposal(): recieve proposal. Txnid %d, follower id %s, coorindator fid %s",
txnid, fid, c.GetFollowerId())
// If this host is the one that sends the request to the leader
if fid == c.GetFollowerId() {
c.state.mutex.Lock()
defer c.state.mutex.Unlock()
// look up the request handle from the pending list and
// move it to the proposed list
handle, ok := c.state.pendings[reqId]
if ok {
delete(c.state.pendings, reqId)
c.state.proposals[common.Txnid(txnid)] = handle
}
}
}
