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