CanPreventReboot

CanReboot Copying Finalize Init RegisterForRebootPrevention Reinitialize SystemCanReboot UnRegisterForRebootPrevention

Attributes

Class CanPreventReboot defines no new attributes.

Fields

Define Class CanPreventReboot; 
    mixes in with Object, HasReinitialize;
    
    operation CanReboot(): Boolean;
        // clients must override to return true if they're interruptable and
        // otherwise ask user to confirm. 
    
    intrinsic SystemCanReboot(): Boolean;
        // called by the system when it wants to reboot, to check if ongoing
        // processes such as communication would be interrupted by a reboot; 
        // returns true if rebooting would interrupt nothing, false if it would
        // call often, override never
    
    operation RegisterForRebootPrevention();
        // called by Init and Reinitialize to add client to the list of
        // objects who'll be asked whenever we might reboot
        // call rarely, override never
    operation UnRegisterForRebootPrevention();
        // called by Finalize to remove this object from the notification list
        // call rarely, override never  

    overrides Init, Reinitialize, Copying;
        // overridden to register the object with the reboot manager
    overrides Finalize;
        // overridden to unregister the object
end class;