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(
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<kernel::activity::IoImpl*> rios(ios.size());
45 std::transform(begin(ios), end(ios), begin(rios),
46 [](const IoPtr& io) { return static_cast<kernel::activity::IoImpl*>(io->pimpl_.get()); });
48 kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
49 kernel::actor::IoWaitanySimcall observer{issuer, rios, timeout};
50 ssize_t changed_pos = kernel::actor::simcall_blocking(
52 kernel::activity::IoImpl::wait_any_for(observer.get_issuer(), observer.get_ios(), observer.get_timeout());
55 if (changed_pos != -1)
56 ios.at(changed_pos)->complete(State::FINISHED);
60 IoPtr Io::set_disk(const_sg_disk_t disk)
62 xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set disk once the Io is started");
64 kernel::actor::simcall(
65 [this, disk] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_disk(disk->get_impl()); });
67 // Setting the disk may allow to start the activity, let's try
68 if (state_ == State::STARTING)
74 IoPtr Io::set_priority(double priority)
76 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
77 "Cannot change the priority of an io after its start");
78 kernel::actor::simcall([this, priority] {
79 boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_sharing_penalty(1. / priority);
84 IoPtr Io::set_size(sg_size_t size)
86 xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set size once the Io is started");
87 kernel::actor::simcall(
88 [this, size] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_size(size); });
89 Activity::set_remaining(size);
93 IoPtr Io::set_op_type(OpType type)
95 xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set size once the Io is started");
96 kernel::actor::simcall(
97 [this, type] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_type(type); });
101 IoPtr Io::update_priority(double priority)
103 kernel::actor::simcall([this, priority] {
104 boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->update_sharing_penalty(1. / priority);
109 /** @brief Returns the amount of flops that remain to be done */
110 double Io::get_remaining() const
112 return kernel::actor::simcall(
113 [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
116 sg_size_t Io::get_performed_ioops() const
118 return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops();
121 bool Io::is_assigned() const
123 return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_disk() != nullptr;
127 } // namespace simgrid