-/* Copyright (c) 2017-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2017-2023. 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/forward.h>
#include <simgrid/s4u/Activity.hpp>
-#include <atomic>
#include <string>
-namespace simgrid {
-namespace s4u {
+namespace simgrid::s4u {
/** 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_T<Io> {
-public:
- enum class OpType { READ, WRITE };
+#ifndef DOXYGEN
+ friend kernel::activity::IoImpl;
+ friend kernel::EngineImpl;
+#endif
-private:
- Storage* storage_ = nullptr;
- sg_size_t size_ = 0;
- OpType type_ = OpType::READ;
- std::atomic_int_fast32_t refcount_{0};
+protected:
+ explicit Io(kernel::activity::IoImplPtr pimpl);
+ Io* do_start() override;
- explicit Io(sg_storage_t storage, sg_size_t size, OpType type);
+ static ssize_t deprecated_wait_any_for(const std::vector<IoPtr>& ios, double timeout);
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
+ enum class OpType { READ, WRITE };
- ~Io() = default;
+ /*! \static Initiate the creation of an I/O. Setters have to be called afterwards */
+ static IoPtr init();
+#ifndef DOXYGEN
+ XBT_ATTRIB_DEPRECATED_v339("Please use ActivitySet instead")
+ static ssize_t wait_any(const std::vector<IoPtr>& ios) { return deprecated_wait_any_for(ios, -1); }
+ XBT_ATTRIB_DEPRECATED_v339("Please use ActivitySet instead")
+ static ssize_t wait_any_for(const std::vector<IoPtr>& ios, double timeout) { return deprecated_wait_any_for(ios, timeout); }
+#endif
- Io* start() override;
- Io* wait() override;
- Io* wait_for(double timeout) override;
- Io* cancel() override;
- bool test() override;
+ 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);
- double get_remaining() override;
- sg_size_t get_performed_ioops();
+ static IoPtr streamto_init(Host* from, const Disk* from_disk, Host* to, const Disk* to_disk);
+ static IoPtr streamto_async(Host* from, const Disk* from_disk, Host* to, const Disk* to_disk,
+ uint64_t simulated_size_in_bytes);
+ static void streamto(Host* from, const Disk* from_disk, Host* to, const Disk* to_disk,
+ uint64_t simulated_size_in_bytes);
-#ifndef DOXYGEN
- XBT_ATTRIB_DEPRECATED_v324("Please use Io::wait_for()") void wait(double t) override { wait_for(t); }
-#endif
+ IoPtr set_source(Host* from, const Disk* from_disk);
+ IoPtr set_destination(Host* to, const Disk* to_disk);
+
+ IoPtr update_priority(double priority);
+
+ bool is_assigned() const override;
};
-} // namespace s4u
-} // namespace simgrid
+} // namespace simgrid::s4u
#endif /* SIMGRID_S4U_IO_HPP */