1 /* Copyright (c) 2018-2022. 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>
10 #include "src/kernel/activity/IoImpl.hpp"
11 #include "src/kernel/actor/ActorImpl.hpp"
12 #include "src/kernel/actor/SimcallObserver.hpp"
16 xbt::signal<void(Io const&)> Io::on_start;
18 Io::Io(kernel::activity::IoImplPtr pimpl)
25 auto pimpl = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
26 return IoPtr(static_cast<Io*>(pimpl->get_iface()));
31 kernel::actor::simcall_answered(
32 [this] { (*boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)).set_name(get_name()).start(); });
37 state_ = State::STARTED;
42 ssize_t Io::wait_any_for(const std::vector<IoPtr>& ios, double timeout)
44 std::vector<ActivityPtr> activities;
45 for (const auto& io : ios)
46 activities.push_back(boost::dynamic_pointer_cast<Activity>(io));
47 return Activity::wait_any_for(activities, timeout);
50 IoPtr Io::set_disk(const_sg_disk_t disk)
52 xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set disk once the Io is started");
54 kernel::actor::simcall_answered(
55 [this, disk] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_disk(disk->get_impl()); });
57 // Setting the disk may allow to start the activity, let's try
58 if (state_ == State::STARTING)
64 IoPtr Io::set_priority(double priority)
66 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
67 "Cannot change the priority of an io after its start");
68 kernel::actor::simcall_answered([this, priority] {
69 boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_sharing_penalty(1. / priority);
74 IoPtr Io::set_size(sg_size_t size)
76 xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set size once the Io is started");
77 kernel::actor::simcall_answered(
78 [this, size] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_size(size); });
79 Activity::set_remaining(size);
83 IoPtr Io::set_op_type(OpType type)
85 xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set size once the Io is started");
86 kernel::actor::simcall_answered(
87 [this, type] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_type(type); });
91 IoPtr Io::update_priority(double priority)
93 kernel::actor::simcall_answered([this, priority] {
94 boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->update_sharing_penalty(1. / priority);
99 /** @brief Returns the amount of flops that remain to be done */
100 double Io::get_remaining() const
102 return kernel::actor::simcall_answered(
103 [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
106 sg_size_t Io::get_performed_ioops() const
108 return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops();
111 bool Io::is_assigned() const
113 return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_disk() != nullptr;
117 } // namespace simgrid