+
+ /*** Called on each newly created object */
+ static simgrid::xbt::signal<void(Host&)> onCreation;
+ /*** Called just before destructing an object */
+ static simgrid::xbt::signal<void(Host&)> onDestruction;
+ /*** Called when the machine is turned on or off */
+ static simgrid::xbt::signal<void(Host&)> onStateChange;