-/* Copyright (c) 2017-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2017-2019. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include <simgrid/s4u/Activity.hpp>
#include <atomic>
+#include <string>
namespace simgrid {
namespace s4u {
+/** I/O Activity, representing the asynchronous disk access.
+ *
+ * They are generated from Storage::io_init() or Storage::read() and Storage::write().
+ */
+
class XBT_PUBLIC Io : public Activity {
- Io() : Activity() {}
public:
+ enum class OpType { READ, WRITE };
+
+private:
+ Storage* storage_ = 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);
+
+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 Storage; // Factory of IOs
+#endif
~Io() = default;
- Activity* start() override;
- Activity* wait() override;
- Activity* wait(double timeout) override;
- Activity* cancel() override;
+ Io* start() override;
+ Io* wait() override;
+ Io* wait_for(double timeout) override;
+ Io* cancel() override;
+ bool test() override;
double get_remaining() override;
+ sg_size_t get_performed_ioops();
+};
-private:
- sg_size_t size_ = 0;
- sg_storage_t storage_ = nullptr;
- std::atomic_int_fast32_t refcount_{0};
-}; // class
-}
-}; // Namespace simgrid::s4u
+} // namespace s4u
+} // namespace simgrid
#endif /* SIMGRID_S4U_IO_HPP */