/
fsm_active.go
71 lines (62 loc) · 1.48 KB
/
fsm_active.go
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package server
import (
"fmt"
"net"
)
type activeState struct {
fsm *FSM
}
func newActiveState(fsm *FSM) *activeState {
return &activeState{
fsm: fsm,
}
}
func (s activeState) run() (state, string) {
for {
select {
case e := <-s.fsm.eventCh:
switch e {
case ManualStop:
return s.manualStop()
case Cease:
return s.cease()
default:
continue
}
case <-s.fsm.connectRetryTimer.C:
return s.connectRetryTimerExpired()
case c := <-s.fsm.conCh:
return s.connectionSuccess(c)
}
}
}
func (s *activeState) manualStop() (state, string) {
s.fsm.con.Close()
s.fsm.resetConnectRetryCounter()
stopTimer(s.fsm.connectRetryTimer)
return newIdleState(s.fsm), "Manual stop event"
}
func (s *activeState) cease() (state, string) {
s.fsm.con.Close()
return newCeaseState(), "Cease"
}
func (s *activeState) connectRetryTimerExpired() (state, string) {
s.fsm.resetConnectRetryTimer()
s.fsm.tcpConnect()
return newConnectState(s.fsm), "Connect retry timer expired"
}
func (s *activeState) connectionSuccess(con net.Conn) (state, string) {
err := s.fsm.sockSettings(con)
if err != nil {
return newIdleState(s.fsm), fmt.Sprintf("Unable to set socket options: %v", err)
}
s.fsm.con = con
stopTimer(s.fsm.connectRetryTimer)
err = s.fsm.sendOpen()
if err != nil {
s.fsm.resetConnectRetryTimer()
s.fsm.connectRetryCounter++
return newIdleState(s.fsm), fmt.Sprintf("Sending OPEN message failed: %v", err)
}
return newOpenSentState(s.fsm), "Sent OPEN message"
}