// implements ExplorePolicy interface
func (p *MyPolicy) QueueNextEvent(event signal.Event) {
// Possible events:
// - JavaFunctionEvent
// - PacketEvent
// - FilesystemEvent
// - ProcSetEvent (Linux procfs)
// - LogEvent
fmt.Printf("Event: %s\n", event)
// You can also inject fault actions
// - PacketFaultAction
// - FilesystemFaultAction
// - ProcSetSchedAction
// - ShellAction
action, err := event.DefaultAction()
if err != nil {
panic(err)
}
// send in a goroutine so as to make the function non-blocking.
// (Note that earthquake/util/queue/TimeBoundedQueue provides
// better semantics and determinism, this is just an example.)
go func() {
fmt.Printf("Action ready: %s\n", action)
p.nextActionChan <- action
fmt.Printf("Action passed: %s\n", action)
}()
}
func (r *Random) QueueNextEvent(event signal.Event) {
minInterval := r.MinInterval
maxInterval := r.MaxInterval
_, prioritized := r.PrioritizedEntities[event.EntityID()]
if prioritized {
// FIXME: magic coefficient for prioritizing (decrease intervals)
minInterval = time.Duration(float64(minInterval) * 0.8)
maxInterval = time.Duration(float64(maxInterval) * 0.8)
}
item, err := queue.NewBasicTBQueueItem(event, minInterval, maxInterval)
if err != nil {
panic(log.Critical(err))
}
r.queue.Enqueue(item)
}
// for dequeueRoutine()
func (r *Random) makeActionForEvent(event signal.Event) (signal.Action, error) {
switch event.(type) {
case *signal.ProcSetEvent:
return r.makeActionForProcSetEvent(event.(*signal.ProcSetEvent))
}
defaultAction, defaultActionErr := event.DefaultAction()
faultAction, faultActionErr := event.DefaultFaultAction()
if faultAction == nil {
return defaultAction, defaultActionErr
}
if rand.Intn(999) < int(r.FaultActionProbability*1000.0) {
log.Debugf("Injecting fault %s for %s", faultAction, event)
return faultAction, faultActionErr
} else {
return defaultAction, defaultActionErr
}
}
