/** I/O Activity, representing the asynchronous disk access.
*
- * They are generated from Storage::io_init() or Storage::read() and Storage::write().
+ * They are generated from Disk::io_init(), Disk::read() Disk::read_async(), Disk::write() and Disk::write_async().
*/
-class XBT_PUBLIC Io : public Activity {
+class XBT_PUBLIC Io : public Activity_T<Io> {
public:
enum class OpType { READ, WRITE };
private:
Storage* storage_ = nullptr;
+ Disk* disk_ = nullptr;
sg_size_t size_ = 0;
OpType type_ = OpType::READ;
- std::string name_ = "";
std::atomic_int_fast32_t refcount_{0};
explicit Io(sg_storage_t storage, sg_size_t size, OpType type);
+ explicit Io(sg_disk_t disk, sg_size_t size, OpType type);
public:
#ifndef DOXYGEN
friend XBT_PUBLIC void intrusive_ptr_release(simgrid::s4u::Io* i);
friend XBT_PUBLIC void intrusive_ptr_add_ref(simgrid::s4u::Io* i);
+ friend Disk; // Factory of IOs
friend Storage; // Factory of IOs
#endif
