on_peer_connection_change/2 classy Function (Classy)

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4.1.33 on_peer_connection_change(Hook, Prio) ¶

-spec on_peer_connection_change(Fun,
                                classy_hook:conf()) -> classy_hook:hook() when Fun ::
                                                                                   fun((Remote,
                                                                                        node(),
                                                                                        _IsConnected ::
                                                                                            boolean()) -> _),
                                                                               Remote ::
                                                                                   site().

Register a hook that is executed when a site changes status from connected (true) to disconnected (false) and vice versa.

Note: this hook runs in the classy main process. Hence it should avoid blocking it.

WARNING: status change to false is not indicative of the remote site being actually down. This can happen during a network partition.