protected:
Activity() = default;
virtual ~Activity() = default;
+
+ void release_dependencies()
+ {
+ while (not successors_.empty()) {
+ ActivityPtr b = successors_.back();
+ XBT_CDEBUG(s4u_activity, "Remove a dependency from '%s' on '%s'", get_cname(), b->get_cname());
+ b->dependencies_.erase(this);
+ if (b->dependencies_.empty()) {
+ b->vetoable_start();
+ }
+ successors_.pop_back();
+ }
+ }
+
+ void add_successor(ActivityPtr a)
+ {
+ successors_.push_back(a);
+ a->dependencies_.insert({this});
+ }
+
public:
+ void vetoable_start()
+ {
+ state_ = State::STARTING;
+ if (dependencies_.empty()) {
+ XBT_CDEBUG(s4u_activity, "All dependencies are solved, let's start '%s'", get_cname());
+ start();
+ }
+ }
+
#ifndef DOXYGEN
Activity(Activity const&) = delete;
Activity& operator=(Activity const&) = delete;
/** Returns the internal implementation of this Activity */
kernel::activity::ActivityImpl* get_impl() const { return pimpl_.get(); }
- void add_successor(ActivityPtr a)
- {
- successors_.push_back(a);
- a->add_dependency_on(this);
- }
- void remove_successor() { successors_.pop_back(); }
- ActivityPtr get_successor() { return successors_.back(); }
- bool has_successors() { return not successors_.empty(); }
-
- void add_dependency_on(ActivityPtr a) { dependencies_.insert({a}); }
- void remove_dependency_on(ActivityPtr a) { dependencies_.erase(a); }
- bool has_dependencies() { return not dependencies_.empty(); }
- void release_dependencies()
- {
- while (has_successors()) {
- ActivityPtr b = get_successor();
- XBT_CDEBUG(s4u_activity, "Remove a dependency from '%s' on '%s'", get_cname(), b->get_cname());
- b->remove_dependency_on(this);
- if (not b->has_dependencies()) {
- b->vetoable_start();
- }
- remove_successor();
- }
- }
-
- void vetoable_start()
- {
- state_ = State::STARTING;
- if (not has_dependencies()) {
- XBT_CDEBUG(s4u_activity, "All dependencies are solved, let's start '%s'", get_cname());
- start();
- }
- }
-
#ifndef DOXYGEN
friend void intrusive_ptr_release(Activity* a)
{
}
friend void intrusive_ptr_add_ref(Activity* a) { a->refcount_.fetch_add(1, std::memory_order_relaxed); }
#endif
+
private:
kernel::activity::ActivityImplPtr pimpl_ = nullptr;
Activity::State state_ = Activity::State::INITED;
void* user_data_ = nullptr;
public:
+ AnyActivity* add_successor(ActivityPtr a)
+ {
+ Activity::add_successor(a);
+ return static_cast<AnyActivity*>(this);
+ }
+
AnyActivity* set_name(const std::string& name)
{
xbt_assert(get_state() == State::INITED, "Cannot change the name of an activity after its start");