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# readBuffersAvailableByteCount

The size of the read buffers memory (in bytes) exposed by the Virtio queue element that’s currently available for reading.

```
var readBuffersAvailableByteCount: Int { get }
```

## Discussion

This value is initially equal to [`readBuffersByteCount`](/documentation/Virtualization/VZVirtioQueueElement/readBuffersByteCount). This value decreases as you read memory from the read buffers.

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