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# AsyncThrowingStream.Continuation.BufferingPolicy

A strategy that handles exhaustion of a buffer’s capacity.

```
enum BufferingPolicy
```

## Topics

### Buffering Policies

[`case unbounded`](/documentation/Swift/AsyncThrowingStream/Continuation/BufferingPolicy/unbounded)

Continue to add to the buffer, without imposing a limit on the number of buffered elements.

[`case bufferingOldest(Int)`](/documentation/Swift/AsyncThrowingStream/Continuation/BufferingPolicy/bufferingOldest(_:))

When the buffer is full, discard the newly received element.

[`case bufferingNewest(Int)`](/documentation/Swift/AsyncThrowingStream/Continuation/BufferingPolicy/bufferingNewest(_:))

When the buffer is full, discard the oldest element in the buffer.

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Sendable`](/documentation/Swift/Sendable)

---

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