A type of dispatch source for monitoring custom events involving the coalescing of data with an AND operator.
- iOS 4.0+
- macOS 10.6+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
A dispatch source that coalesces data obtained via calls to
dispatch. An ADD is used to coalesce the data. The handle is unused (pass zero for now). The mask is unused (pass zero for now).