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# acceptConnectionInBackgroundAndNotify(forModes:)

Accepts a socket connection (for stream-type sockets only) in the background and creates a file handle for the “near” (client) end of the communications channel.

```
func acceptConnectionInBackgroundAndNotify(forModes modes: [RunLoop.Mode]?)
```

## Parameters

`modes`

The runloop modes in which the connection accepted notification can be posted.

## Discussion

See [`acceptConnectionInBackgroundAndNotify()`](/documentation/Foundation/FileHandle/acceptConnectionInBackgroundAndNotify()) for details of how this method operates. This method differs from [`acceptConnectionInBackgroundAndNotify()`](/documentation/Foundation/FileHandle/acceptConnectionInBackgroundAndNotify()) in that `modes` specifies the run-loop mode (or modes) in which [`NSFileHandleConnectionAccepted`](/documentation/Foundation/NSNotification/Name-swift.struct/NSFileHandleConnectionAccepted) can be posted.

You must call this method from a thread that has an active run loop.

## See Also

[`enqueue(_:postingStyle:coalesceMask:forModes:)`](/documentation/Foundation/NotificationQueue/enqueue(_:postingStyle:coalesceMask:forModes:))

Adds a notification to the notification queue with a specified posting style, criteria for coalescing, and run loop mode.


---

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