-private:
- explicit Io(sg_size_t size, OpType type) : Activity(), size_(size), type_(type) {}
-public:
- friend XBT_PUBLIC void intrusive_ptr_release(simgrid::s4u::Io* i);
- friend XBT_PUBLIC void intrusive_ptr_add_ref(simgrid::s4u::Io* i);
- friend Storage; // Factory of IOs
-
- ~Io() = default;
-
- Activity* start() override;
- Activity* wait() override;
- Activity* wait(double timeout) override;
- Activity* cancel() override;
-
- double get_remaining() override;
- sg_size_t get_performed_ioops();
-
-private:
- sg_size_t size_ = 0;
- sg_storage_t storage_ = nullptr;
- std::string name_ = "";
- OpType type_ = OpType::READ;
- std::atomic_int_fast32_t refcount_{0};
-}; // class
-}
-}; // Namespace simgrid::s4u
+ static void on_start_cb(const std::function<void(Io const&)>& cb) { on_start.connect(cb); }
+
+ static IoPtr init();
+ Io* start() override;
+ /*! take a vector of s4u::IoPtr and return when one of them is finished.
+ * The return value is the rank of the first finished IoPtr. */
+ static ssize_t wait_any(const std::vector<IoPtr>& ios) { return wait_any_for(ios, -1); }
+ /*! Same as wait_any, but with a timeout. If the timeout occurs, parameter last is returned.*/
+ static ssize_t wait_any_for(const std::vector<IoPtr>& ios, double timeout);
+
+ double get_remaining() const override;
+ sg_size_t get_performed_ioops() const;
+ IoPtr set_disk(const_sg_disk_t disk);
+ IoPtr set_priority(double priority);
+ IoPtr set_size(sg_size_t size);
+ IoPtr set_op_type(OpType type);
+
+ IoPtr update_priority(double priority);
+
+ bool is_assigned() const override;
+};
+
+} // namespace s4u
+} // namespace simgrid