// Following function handles Incoming at Inbox from other peers.It reads those Event and forwards to StateMachine
func (rn *RaftNode) check_Inbox(node cluster.Server) {
for {
env := <-node.Inbox()
switch env.Msg.(type) {
// this packet is APPENDENTRIESRESP:
case APPENDENTRIESRESP:
temp := env.Msg.(APPENDENTRIESRESP)
rn.sm.SMchanels.netCh <- temp
//this packet is APPENDENTRIESREQ:
case APPENDENTRIESREQ:
temp := env.Msg.(APPENDENTRIESREQ)
rn.sm.SMchanels.netCh <- temp
// this packet is VOTERESP
case VOTERESP:
// fmt.Println("VOTERESp");
temp := env.Msg.(VOTERESP)
rn.sm.SMchanels.netCh <- temp
case VOTEREQ:
temp := env.Msg.(VOTEREQ)
rn.sm.SMchanels.netCh <- temp
}
}
} //End of check_Inbox function
//Process to listen incomming packets from other Servers.
func processInbox(server cluster.Server, sm *State_Machine) {
for {
env := <-server.Inbox()
switch env.Msg.(type) {
case VoteReq:
sm.CommMedium.netCh <- env.Msg
case VoteResp:
sm.CommMedium.netCh <- env.Msg
case AppEntrReq:
sm.CommMedium.netCh <- env.Msg
case AppEntrResp:
sm.CommMedium.netCh <- env.Msg
}
}
}
//This goroutine receives Action coming from StateMAchine and take Actions Accordingly.
func (rn *RaftNode) check_SMAction(node cluster.Server) {
for {
actionEvent := <-rn.sm.SMchanels.Action
switch actionEvent.(type) {
case SEND:
tempEvent := actionEvent.(SEND)
id := tempEvent.ID_TOSEND
mid := getMsgId(tempEvent.EVENT)
msgid := int64(mid)
if id == 300 {
node.Outbox() <- &cluster.Envelope{Pid: cluster.BROADCAST, MsgId: msgid, Msg: tempEvent.EVENT}
} else {
node.Outbox() <- &cluster.Envelope{Pid: id, MsgId: msgid, Msg: tempEvent.EVENT}
}
case COMMIT:
tempEvent := actionEvent.(COMMIT)
data := tempEvent.DATA
leader := rn.sm.LEADERID
CI := COMMITINFO{Index: int64(leader), Err: 404, Data: data}
rn.CommitChannel <- CI
case ALARM:
tempEvent := actionEvent.(ALARM)
t := tempEvent.TIME
if rn.timerFlag == 1 {
rn.timer.Stop()
rn.timer = time.AfterFunc(time.Duration(t)*time.Millisecond, func() {
rn.sm.SMchanels.timeoutCh <- TIMEOUT{}
})
} else {
rn.timer = time.AfterFunc(time.Duration(t)*time.Millisecond, func() {
rn.sm.SMchanels.timeoutCh <- TIMEOUT{}
})
}
case LOGSTORE:
tempEvent := actionEvent.(LOGSTORE)
index := tempEvent.INDEX
data := tempEvent.DATA.COMMAND
CI := COMMITINFO{Index: int64(index), Data: data, Err: 200}
rn.CommitChannel <- CI
rn.writeLog(tempEvent)
}
}
} //End of check_SMAction() function
// Following function handles Incoming at Inbox from other peers.It reads those Event and forwards to StateMachine
func (rn *RaftNode) check_Inbox(node cluster.Server) {
for {
env := <-node.Inbox()
switch env.Msg.(type) {
case APPENDENTRIESRESP:
temp := env.Msg.(APPENDENTRIESRESP)
rn.sm.SMchanels.netCh <- temp
case APPENDENTRIESREQ:
temp := env.Msg.(APPENDENTRIESREQ)
rn.sm.SMchanels.netCh <- temp
case VOTERESP:
temp := env.Msg.(VOTERESP)
rn.sm.SMchanels.netCh <- temp
case VOTEREQ:
temp := env.Msg.(VOTEREQ)
rn.sm.SMchanels.netCh <- temp
}
}
} //End of check_Inbox function
func (rn *RaftNode) check_SMAction(node cluster.Server) {
for {
// fmt.Println("--->>",rn.sm.ID,"---",rn.sm.SMchanels.Action.(type))
actionEvent := <-rn.sm.SMchanels.Action
switch actionEvent.(type) {
// If Action is SEND Event.It will forward that Message to respective peers
case SEND:
tempEvent := actionEvent.(SEND)
//fmt.Println("-> ",tmp)
id := tempEvent.ID_TOSEND
mid := getMsgId(tempEvent.EVENT)
msgid := int64(mid)
if id == 300 { // 100 means it is a broadcast request
node.Outbox() <- &cluster.Envelope{Pid: cluster.BROADCAST, MsgId: msgid, Msg: tempEvent.EVENT}
} else {
node.Outbox() <- &cluster.Envelope{Pid: id, MsgId: msgid, Msg: tempEvent.EVENT}
}
case COMMIT:
// This will update StateMachine Timeout period.
case ALARM:
tempEvent := actionEvent.(ALARM)
t := tempEvent.TIME
if rn.timerFlag == 1 {
rn.timer.Stop()
rn.timer = time.AfterFunc(time.Duration(t)*time.Millisecond, func() {
rn.sm.SMchanels.timeoutCh <- TIMEOUT{}
})
} else {
rn.timer = time.AfterFunc(time.Duration(t)*time.Millisecond, func() {
rn.sm.SMchanels.timeoutCh <- TIMEOUT{}
})
}
case LOGSTORE:
tempEvent := actionEvent.(LOGSTORE)
index := tempEvent.INDEX
data := tempEvent.DATA.COMMAND
CI := COMMITINFO{Index: int64(index), Data: data}
rn.CommitChannel <- CI
rn.writeLog(tempEvent)
}
}
} //End of check_SMAction() function
//Signal to shut down all goroutines, stop sockets, flush log and close it, cancel timers.
func Shutdown(server cluster.Server) {
server.Close()
}
//Process to send packets to other Servers.
func processOutbox(server cluster.Server, sm *State_Machine, msg Send) {
//broadcaste messagess.
if msg.PeerId == 0 {
switch msg.Event.(type) {
case AppEntrReq:
AppReq := msg.Event.(AppEntrReq)
server.Outbox() <- &cluster.Envelope{Pid: cluster.BROADCAST, MsgId: 11, Msg: AppReq}
case VoteReq:
VotReq := msg.Event.(VoteReq)
server.Outbox() <- &cluster.Envelope{Pid: cluster.BROADCAST, MsgId: 1, Msg: VotReq}
}
} else {
//send to particular node.
switch msg.Event.(type) {
case AppEntrReq:
AppReq := msg.Event.(AppEntrReq)
server.Outbox() <- &cluster.Envelope{Pid: int(msg.PeerId), MsgId: 11, Msg: AppReq}
case AppEntrResp:
AppResp := msg.Event.(AppEntrResp)
AppResp.Peer = int32(server.Pid())
server.Outbox() <- &cluster.Envelope{Pid: int(msg.PeerId), MsgId: 22, Msg: AppResp}
case VoteResp:
VotResp := msg.Event.(VoteResp)
server.Outbox() <- &cluster.Envelope{Pid: int(msg.PeerId), MsgId: 2, Msg: VotResp}
}
}
}