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# BundledParallelTaskCompletion

Indicates to the system that the extension completed a bundled asynchronous request.

```
virtual void BundledParallelTaskCompletion(OSAction *action, const uint16_t parallelResponseSlotIndices[32], uint16_t parallelResponseSlotIndicesCount);
```

## Parameters

`action`

A pointer to the <doc://com.apple.documentation/documentation/DriverKit/OSAction> object of the asynchronous request that the system specifies in a [`UserProcessBundledParallelTasks`](/documentation/SCSIControllerDriverKit/IOUserSCSIParallelInterfaceController/UserProcessBundledParallelTasks) call.

`parallelResponseSlotIndices`

The indices of the shared response buffer slots containing a [`SCSIUserParallelResponse`](/documentation/SCSIControllerDriverKit/SCSIUserParallelResponse) for each task to complete.

`parallelResponseSlotIndicesCount`

The number of tasks to complete. Ensure that entries from zero to `(parallelResponseSlotIndicesCount - 1)` have valid indicies.

## Discussion

Use this method to complete one or more requests previously received by the [`UserProcessBundledParallelTasks`](/documentation/SCSIControllerDriverKit/IOUserSCSIParallelInterfaceController/UserProcessBundledParallelTasks) method.
For each request to complete:

1. Populate a [`SCSIUserParallelResponse`](/documentation/SCSIControllerDriverKit/SCSIUserParallelResponse).
2. Make the response available in the shared response buffers.
3. Pass the response buffer slot in `parallelResponseSlotIndices`.

The command and response buffers have a one-to-one mapping; use the same slot number for related command and response payloads.

---

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