// runTriggers executes the triggers for each
// monitored resource if it's state has changed
func (c *Catalog) runTriggers(r resource.Resource) error {
c.status.Lock()
defer c.status.Unlock()
for subscribed, trigger := range r.SubscribedTo() {
item := c.status.Items[subscribed]
if !item.StateChanged {
continue
}
c.config.Logger.Printf("%s running trigger, because %s has changed\n", r.ID(), subscribed)
c.config.L.Push(trigger)
if err := c.config.L.PCall(0, 0, nil); err != nil {
c.config.Logger.Printf("%s trigger exited with an error: %s\n", r.ID(), err)
return err
}
}
return nil
}
