* under the terms of the license (GNU LGPL) which comes with this package. */
#include "src/mc/explo/udpor/UnfoldingEvent.hpp"
+#include "src/mc/explo/udpor/History.hpp"
namespace simgrid::mc::udpor {
-UnfoldingEvent::UnfoldingEvent(std::initializer_list<UnfoldingEvent*> init_list)
+UnfoldingEvent::UnfoldingEvent(std::initializer_list<const UnfoldingEvent*> init_list)
: UnfoldingEvent(EventSet(std::move(init_list)))
{
}
return this->immediate_causes == other.immediate_causes;
}
+EventSet UnfoldingEvent::get_history() const
+{
+ return History(this).get_all_events();
+}
+
+bool UnfoldingEvent::related_to(const UnfoldingEvent* other) const
+{
+ return this->in_history_of(other) or other->in_history_of(this);
+}
+
+bool UnfoldingEvent::in_history_of(const UnfoldingEvent* other) const
+{
+ return History(other).contains(this);
+}
+
+bool UnfoldingEvent::conflicts_with(const UnfoldingEvent* other) const
+{
+ // Events that have a causal relation never are in conflict
+ // in an unfolding structure. Two events in conflict must
+ // not be contained in each other's histories
+ if (related_to(other)) {
+ return false;
+ }
+
+ const EventSet my_history = get_history();
+ const EventSet other_history = other->get_history();
+ const EventSet unique_to_me = my_history.subtracting(other_history);
+ const EventSet unique_to_other = other_history.subtracting(my_history);
+
+ for (const auto e_me : unique_to_me) {
+ for (const auto e_other : unique_to_other) {
+ if (e_me->has_conflicting_transition_with(e_other)) {
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+bool UnfoldingEvent::conflicts_with(const Configuration& config) const
+{
+ // A configuration is itself already conflict-free. Thus, it is
+ // simply a matter of testing whether or not the transition associated
+ // with the event is dependent with any already in `config` that are
+ // OUTSIDE this event's history (in an unfolding, events only conflict
+ // if they are not related)
+ const EventSet potential_conflicts = config.get_events().subtracting(get_history());
+ return std::any_of(potential_conflicts.cbegin(), potential_conflicts.cend(),
+ [&](const UnfoldingEvent* e) { return this->has_conflicting_transition_with(e); });
+}
+
+bool UnfoldingEvent::has_conflicting_transition_with(const UnfoldingEvent* other) const
+{
+ return associated_transition->depends(other->associated_transition.get());
+}
+
} // namespace simgrid::mc::udpor
