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# holoscan::AsyncQueuePolicy

> Policy for handling queue overflow in async data loggers.

Policy for handling queue overflow in async data loggers.

```cpp showLineNumbers={false}
enum class holoscan::AsyncQueuePolicy
```

---

## Values

| Name      | Value | Description                                                 |
| --------- | ----- | ----------------------------------------------------------- |
| `kReject` | `= 0` | Reject new items when queue is full (drop and log warning). |
| `kRaise`  | `= 1` | Raise an exception when queue is full.                      |