give access to first dependency and first successor of an activity

diff --git a/include/simgrid/s4u/Activity.hpp b/include/simgrid/s4u/Activity.hpp
index 8e9e8ab..9875e12 100644 (file)
--- a/include/simgrid/s4u/Activity.hpp
+++ b/include/simgrid/s4u/Activity.hpp
@@ -42,6 +42,8 @@ public:
   virtual bool is_assigned() const = 0;
   virtual bool dependencies_solved() const { return dependencies_.empty(); }
   virtual unsigned long is_waited_by() const { return successors_.size(); }
+  ActivityPtr get_parent() { return *(dependencies_.begin()); }
+  ActivityPtr get_child() { return successors_.front(); }
 
 protected:
   Activity()  = default;