CFMessagePortSetInvalidationCallBack(_:_:)

Declaration

func CFMessagePortSetInvalidationCallBack(_ ms: CFMessagePort!, _ callout: CFMessagePortInvalidationCallBack!)

Parameters

• ms:

  The message port to examine.

• callout:

  The callback function to invoke when ms is invalidated. Pass NULL to remove a callback.

Discussion

If ms is already invalid, callout is invoked immediately.

See Also

Configuring a CFMessagePort Object

• CFMessagePortCreateRunLoopSource(_:_:_:)
• CFMessagePortSetName(_:_:)