// ReadEvent processes events when a select gets one, and handles the pause
// code too! The return values specify if we should exit and poke respectively.
func (obj *BaseRes) ReadEvent(ev *event.Event) (exit, poke bool) {
ev.ACK()
switch ev.Name {
case event.EventStart:
return false, true
case event.EventPoke:
return false, true
case event.EventBackPoke:
return false, true // forward poking in response to a back poke!
case event.EventExit:
return true, false
case event.EventPause:
// wait for next event to continue
select {
case e := <-obj.Events():
e.ACK()
if e.Name == event.EventExit {
return true, false
} else if e.Name == event.EventStart { // eventContinue
return false, false // don't poke on unpause!
} else {
// if we get a poke event here, it's a bug!
log.Fatalf("%v[%v]: Unknown event: %v, while paused!", obj.Kind(), obj.GetName(), e)
}
}
default:
log.Fatal("Unknown event: ", ev)
}
return true, false // required to keep the stupid go compiler happy
}
// ReadEvent processes events when a select gets one, and handles the pause
// code too! The return values specify if we should exit and poke respectively.
func (obj *BaseRes) ReadEvent(ev *event.Event) (exit, send bool) {
ev.ACK()
var poke bool
// ensure that a CheckApply runs by sending with a dirty state...
if ev.GetActivity() { // if previous node did work, and we were notified...
obj.StateOK(false) // dirty
poke = true // poke!
// XXX: this should be elsewhere in case Watch isn't used (eg: Polling instead...)
// XXX: unless this is used in our "fallback" polling implementation???
//obj.SetRefresh(true) // TODO: is this redundant?
}
switch ev.Name {
case event.EventStart:
send = true || poke
return
case event.EventPoke:
send = true || poke
return
case event.EventBackPoke:
send = true || poke
return // forward poking in response to a back poke!
case event.EventExit:
// FIXME: what do we do if we have a pending refresh (poke) and an exit?
return true, false
case event.EventPause:
// wait for next event to continue
select {
case e, ok := <-obj.Events():
if !ok { // shutdown
return true, false
}
e.ACK()
if e.Name == event.EventExit {
return true, false
} else if e.Name == event.EventStart { // eventContinue
return false, false // don't poke on unpause!
} else {
// if we get a poke event here, it's a bug!
log.Fatalf("%s[%s]: Unknown event: %v, while paused!", obj.Kind(), obj.GetName(), e)
}
}
default:
log.Fatal("Unknown event: ", ev)
}
return true, false // required to keep the stupid go compiler happy
}