Change b0a2a9771f broke
the generic api implementation of
is_native_transport_running that relied on
the addresses list being empty agter the server is stopped.
To fix that, this change introduces a pure virtual method:
protocol_server::is_server_running that can be implemented
by each derived class.
Test: unit(dev)
DTest: nodetool_additional_test.py:TestNodetool.binary_test
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
Message-Id: <20211114135248.588798-1-bhalevy@scylladb.com>
9d4262e264