func (kv *etcdKV) refreshLock(kvPair *kvdb.KVPair) {
l := kvPair.Lock.(*etcdLock)
ttl := kvPair.TTL
refresh := time.NewTicker(ec.DefaultLockRefreshDuration)
var keyString string
if kvPair != nil {
keyString = kvPair.Key
}
defer refresh.Stop()
for {
select {
case <-refresh.C:
l.Lock()
for !l.unlocked {
kvPair.TTL = ttl
kvp, err := kv.CompareAndSet(
kvPair,
kvdb.KVTTL|kvdb.KVModifiedIndex,
kvPair.Value,
)
if err != nil {
kv.FatalCb(
"Error refreshing lock for key %v: %v\n",
keyString, err,
)
l.err = err
l.Unlock()
return
}
kvPair.ModifiedIndex = kvp.ModifiedIndex
break
}
l.Unlock()
case <-l.done:
return
}
}
}
func (kv *MemKV) normalize(kvp *kvdb.KVPair) {
kvp.Key = strings.TrimPrefix(kvp.Key, kv.domain)
}