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/Io.hpp"
7 #include "simgrid/s4u/Storage.hpp"
8 #include "src/kernel/activity/IoImpl.hpp"
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_io, s4u_activity, "S4U asynchronous IOs");
16 Io::Io(sg_storage_t storage, sg_size_t size, OpType type) : Activity(), storage_(storage), size_(size), type_(type)
18 Activity::set_remaining(size_);
19 pimpl_ = kernel::activity::IoImplPtr(new kernel::activity::IoImpl(name_, storage_->get_impl()));
24 simix::simcall([this] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->start(size_, type_); });
25 state_ = State::STARTED;
31 simgrid::simix::simcall([this] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->cancel(); });
32 state_ = State::CANCELED;
38 simcall_io_wait(pimpl_);
39 state_ = State::FINISHED;
43 Io* Io::wait_for(double)
50 xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::FINISHED);
52 if (state_ == State::FINISHED)
55 if (state_ == State::INITED)
63 /** @brief Returns the amount of flops that remain to be done */
64 double Io::get_remaining()
66 return simix::simcall(
67 [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
70 sg_size_t Io::get_performed_ioops()
72 return simix::simcall(
73 [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops(); });
76 void intrusive_ptr_release(simgrid::s4u::Io* i)
78 if (i->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
79 std::atomic_thread_fence(std::memory_order_acquire);
84 void intrusive_ptr_add_ref(simgrid::s4u::Io* i)
86 i->refcount_.fetch_add(1, std::memory_order_relaxed);
89 } // namespace simgrid