forked from ROMEO/nexosim
f458377308
This is a pretty large patch that impacts the API. Until now, it was not possible to cancel events that were scheduled for the current simulation time slice, making it necessary for the user to use complex workarounds (see former version of the espresso machine example). The new implementation makes this possible but the generation of a key associated to an event has now a non-negligible cost (basicaly it creates three references to an Arc). For this reason, the API now defaults to NOT creating a key, and new methods were added for situations when the event may need to be cancelled and a key is necessary. See the much simplified implementation of the espresso machine example for a motivating case.