A type of dispatch source for monitoring a mach send port.
- iOS 4.0+
- macOS 10.6+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
A dispatch source that monitors a Mach port for dead name notifications (the send right no longer has any corresponding receive right). The handle is a Mach port with a send or send-once right (
mach). The mask is a mask of desired events from Dispatch Source Mach Send Event Flags.