func LoadAllPods(db *daemondb.DaemonDB) chan *types.PersistPodLayout {
kvchan := db.PrefixList2Chan([]byte(LAYOUT_KEY_PREFIX), nil)
if kvchan == nil {
return nil
}
ch := make(chan *types.PersistPodLayout, 128)
go func() {
for {
kv, ok := <-kvchan
if !ok {
hlog.Log(INFO, "layout loading finished")
close(ch)
return
}
hlog.Log(TRACE, "loading layout of container %s", string(kv.K))
var layout types.PersistPodLayout
err := proto.Unmarshal(kv.V, &layout)
if err != nil {
hlog.Log(ERROR, "failed to decode layout of contaienr %s: %v", string(kv.K), err)
continue
}
ch <- &layout
}
}()
return ch
}
func loadMessage(db *daemondb.DaemonDB, key string, message proto.Message, owner hlog.LogOwner, op string) error {
v, err := db.Get([]byte(key))
if err != nil {
hlog.HLog(ERROR, owner, 2, "failed to load %s: %v", op, err)
return err
}
err = proto.Unmarshal(v, message)
if err != nil {
hlog.HLog(ERROR, owner, 2, "failed to unpack loaded %s: %v", op, err)
return err
}
return nil
}
func saveMessage(db *daemondb.DaemonDB, key string, message proto.Message, owner hlog.LogOwner, op string) error {
pm, err := proto.Marshal(message)
if err != nil {
hlog.HLog(ERROR, owner, 2, "failed to serialize %s: %v", op, err)
return err
}
err = db.Update([]byte(key), pm)
if err != nil {
hlog.HLog(ERROR, owner, 2, "failed to write %s to db: %v", op, err)
return err
}
hlog.HLog(DEBUG, owner, 2, "%s serialized to db", op)
return nil
}