+ /** Add a callback fired just before destructing this specific host */
+ void on_this_destruction_cb(const std::function<void(Host const&)>& cb)
+ {
+ on_this_destruction.connect(cb);
+ }
+ /** Add a callback fired when the state of any exec activity changes */
+ static void on_exec_state_change_cb(
+ const std::function<void(kernel::resource::CpuAction&, kernel::resource::Action::State previous)>& cb)
+ {
+ on_exec_state_change.connect(cb);
+ }