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"
14 namespace simgrid::s4u {
15 xbt::signal<void(Io const&)> Io::on_start;
17 Io::Io(kernel::activity::IoImplPtr pimpl)
24 auto pimpl = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
25 return IoPtr(static_cast<Io*>(pimpl->get_iface()));
30 kernel::actor::simcall_answered(
31 [this] { (*boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)).set_name(get_name()).start(); });
36 state_ = State::STARTED;
41 ssize_t Io::wait_any_for(const std::vector<IoPtr>& ios, double timeout)
43 std::vector<ActivityPtr> activities;
44 for (const auto& io : ios)
45 activities.push_back(boost::dynamic_pointer_cast<Activity>(io));
46 return Activity::wait_any_for(activities, timeout);
49 IoPtr Io::set_disk(const_sg_disk_t disk)
51 xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set disk once the Io is started");
53 kernel::actor::simcall_answered(
54 [this, disk] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_disk(disk->get_impl()); });
56 // Setting the disk may allow to start the activity, let's try
57 if (state_ == State::STARTING)
63 IoPtr Io::set_priority(double priority)
65 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
66 "Cannot change the priority of an io after its start");
67 kernel::actor::simcall_answered([this, priority] {
68 boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_sharing_penalty(1. / priority);
73 IoPtr Io::set_size(sg_size_t size)
75 xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set size once the Io is started");
76 kernel::actor::simcall_answered(
77 [this, size] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_size(size); });
78 Activity::set_remaining(size);
82 IoPtr Io::set_op_type(OpType type)
84 xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set size once the Io is started");
85 kernel::actor::simcall_answered(
86 [this, type] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_type(type); });
90 IoPtr Io::update_priority(double priority)
92 kernel::actor::simcall_answered([this, priority] {
93 boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->update_sharing_penalty(1. / priority);
98 /** @brief Returns the amount of flops that remain to be done */
99 double Io::get_remaining() const
101 return kernel::actor::simcall_answered(
102 [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
105 sg_size_t Io::get_performed_ioops() const
107 return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops();
110 bool Io::is_assigned() const
112 return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_disk() != nullptr;
115 } // namespace simgrid::s4u