using ActivityPtr = boost::intrusive_ptr<Activity>;
XBT_PUBLIC void intrusive_ptr_release(const Activity* actor);
XBT_PUBLIC void intrusive_ptr_add_ref(const Activity* actor);
using ActivityPtr = boost::intrusive_ptr<Activity>;
XBT_PUBLIC void intrusive_ptr_release(const Activity* actor);
XBT_PUBLIC void intrusive_ptr_add_ref(const Activity* actor);