1 /* Copyright (c) 2018-2019. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "simgrid/s4u/Disk.hpp"
7 #include "simgrid/s4u/Io.hpp"
8 #include "simgrid/s4u/Storage.hpp"
9 #include "src/kernel/activity/IoImpl.hpp"
12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_io, s4u_activity, "S4U asynchronous IOs");
17 Io::Io(sg_disk_t disk, sg_size_t size, OpType type) : disk_(disk), size_(size), type_(type)
19 Activity::set_remaining(size_);
20 pimpl_ = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
23 Io::Io(sg_storage_t storage, sg_size_t size, OpType type) : storage_(storage), size_(size), type_(type)
25 Activity::set_remaining(size_);
26 pimpl_ = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
31 kernel::actor::simcall([this] {
33 (*boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_))
35 .set_storage(storage_->get_impl())
40 (*boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_))
42 .set_disk(disk_->get_impl())
48 state_ = State::STARTED;
54 simgrid::kernel::actor::simcall([this] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->cancel(); });
55 state_ = State::CANCELED;
61 simcall_io_wait(pimpl_);
62 state_ = State::FINISHED;
66 Io* Io::wait_for(double)
73 xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::FINISHED);
75 if (state_ == State::FINISHED)
78 if (state_ == State::INITED)
86 /** @brief Returns the amount of flops that remain to be done */
87 double Io::get_remaining()
89 return kernel::actor::simcall(
90 [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
93 sg_size_t Io::get_performed_ioops()
95 return kernel::actor::simcall(
96 [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops(); });
99 void intrusive_ptr_release(simgrid::s4u::Io* i)
101 if (i->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
102 std::atomic_thread_fence(std::memory_order_acquire);
107 void intrusive_ptr_add_ref(simgrid::s4u::Io* i)
109 i->refcount_.fetch_add(1, std::memory_order_relaxed);
112 } // namespace simgrid