case "Timestamp":
			z.Timestamp, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "Timestamp")
				return
			}
		case "TimeLastRefresh":
			z.TimeLastRefresh, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "TimeLastRefresh")
				return
			}
		case "Source":
			z.Source, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Source")
				return

	Writer          bool   // Bool whether write or read lock.
	UID             string // UID to uniquely identify request of client.
	Timestamp       int64  // Timestamp set at the time of initialization.
	TimeLastRefresh int64  // Timestamp for last lock refresh.
	Source          string // Contains line, function and filename requesting the lock.
	Group           bool   // indicates if it was a group lock.

					}

					// Expire 50%
					expired := time.Now().Add(-time.Hour * 2)
					for _, v := range l.lockMap {
						for i := range v {
							if rng.Intn(2) == 0 {
								v[i].TimeLastRefresh = expired.UnixNano()
							}
						}
					}
					start = time.Now()
					l.expireOldLocks(time.Hour)