Creates a reachability reference to the specified network host or node name.
- iOS 2.0+
- macOS 10.3+
- tvOS 9.0+
The allocator to use. Pass
kto use the default allocator.
The node name of the desired host. This name is the same as that passed to the gethostbyname or getaddrinfo functions. The value of this parameter is copied into the new object.
A new immutable reachability reference. You must release the returned value.
You can use the reachability reference returned by this function to monitor the reachability of the target host.