/*
If the slave is qalified to raise an election, call this function
This function will initiallize the election message, and pass through the ring
*/
func RaiseElection(id int, caster multicaster.Multicaster, m map[int]int) {
msg := multicaster.ElectionMsg{}
msg.MasterSelectSet = make(map[int]bool)
msg.NewMasterId = -1
msg.MasterSelectSet[id] = false
// TODO: pass message to the next element in the link
caster.SendElectionMessage(strconv.Itoa(m[id]), msg)
for key, value := range m {
fmt.Println("key: " + strconv.Itoa(key) + ", value: " + strconv.Itoa(value))
}
//fmt.Println("Message sent to: " + strconv.Itoa(m[id]))
}
/*
Return true
*/
func ReadElectionMsg(id int, msg multicaster.ElectionMsg, caster multicaster.Multicaster, m map[int]int, masterId *int) bool {
fmt.Println("Read Message")
if value, ok := msg.MasterSelectSet[id]; ok {
if value == true {
fmt.Println("Election finished")
return true
// Everyone knew who the master is, stop election.
} else {
msg.MasterSelectSet[id] = true
if msg.NewMasterId == -1 {
for key, _ := range msg.MasterSelectSet {
if msg.NewMasterId < key {
msg.NewMasterId = key
}
}
}
*masterId = msg.NewMasterId
caster.SendElectionMessage(strconv.Itoa(m[id]), msg)
return true
}
} else {
// First round election
msg.MasterSelectSet[id] = false
caster.SendElectionMessage(strconv.Itoa(m[id]), msg)
}
return false
}