Golang EtcdClient.Watch Examples

Example #1

File: etcd_watcher.go Project: qinguoan/vulcan

// etcdWatch calls etcd's Watch function, and handles any errors. Meant to be called
// as a goroutine.
func (w *etcdWatcher) etcdWatch(client tools.EtcdClient, key string, resourceVersion uint64) {
	defer util.HandleCrash()
	defer close(w.etcdError)
	if resourceVersion == 0 {
		latest, err := etcdGetInitialWatchState(client, key, w.list, w.etcdIncoming)
		if err != nil {
			w.etcdError <- err
			return
		}
		resourceVersion = latest + 1
	}
	_, err := client.Watch(key, resourceVersion, w.list, w.etcdIncoming, w.etcdStop)
	if err != nil && err != etcd.ErrWatchStoppedByUser {
		w.etcdError <- err
	}
}