func (f *followConn) offerTimeout(slot uint64, duration time.Duration) {
f.lock.Lock()
defer f.lock.Unlock()
if f.closed {
return
}
// TODO: Only send this on one Follow connection.
var intReq fproto.InstructionRequest
intReq.Slot = new(uint64)
*intReq.Slot = slot
f.conn.SendProto(8, &intReq)
f.offerTimers[slot] = time.AfterFunc(duration*2,
func() { f.offerTimeout(slot, duration*2) })
}
func handleInstructionChosen(f *followConn, content []byte) {
store.StartTransaction()
defer store.EndTransaction()
f.lock.Lock()
defer f.lock.Unlock()
var msg fproto.InstructionChosen
if err := proto.Unmarshal(content, &msg); err != nil {
f.Close()
return
}
if f.closed {
return
}
relativeSlot := int(*msg.Slot - store.InstructionStart())
if relativeSlot < 0 {
return
}
instructions := store.InstructionSlots()
if relativeSlot < len(instructions) {
slot := instructions[relativeSlot]
if len(slot) == 1 && slot[0].IsChosen() {
return
}
}
if !config.IsCore() {
// TODO: Should only do this on one follow connection.
var intReq fproto.InstructionRequest
intReq.Slot = msg.Slot
f.conn.SendProto(8, &intReq)
}
timeout := config.ROUND_TRIP_TIMEOUT_PERIOD
f.offerTimers[*msg.Slot] = time.AfterFunc(
timeout, func() { f.offerTimeout(*msg.Slot, timeout) })
}